EP3375048B1 - Plug contact - Google Patents

Plug contact Download PDF

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Publication number
EP3375048B1
EP3375048B1 EP16793929.7A EP16793929A EP3375048B1 EP 3375048 B1 EP3375048 B1 EP 3375048B1 EP 16793929 A EP16793929 A EP 16793929A EP 3375048 B1 EP3375048 B1 EP 3375048B1
Authority
EP
European Patent Office
Prior art keywords
contact
plug
legs
circuit board
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16793929.7A
Other languages
German (de)
French (fr)
Other versions
EP3375048A1 (en
Inventor
Ralf Geske
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3375048A1 publication Critical patent/EP3375048A1/en
Application granted granted Critical
Publication of EP3375048B1 publication Critical patent/EP3375048B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/7017—Snap means
    • H01R12/7023—Snap means integral with the coupling device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/75—Coupling devices for rigid printing circuits or like structures connecting to cables except for flat or ribbon cables

Definitions

  • the invention relates to a plug contact for electrically contacting a circuit board by inserting the plug contact into a contact hole in the circuit board, with two contact legs that are resilient relative to one another, a connection area and a connection area that connects the two contact legs to one another and to the connection area, wherein the plug contact is punched out of a metallic flat material.
  • the invention also relates to an electrical connection terminal with a housing, with a clamping spring and with a busbar piece, wherein the clamping spring has a clamping leg and a contact leg and the clamping leg with the busbar piece form a spring-loaded clamping connection for an electrical conductor to be connected and wherein a conductor insertion opening for inserting an electrical conductor to be connected and an actuating opening for opening the spring-loaded clamping connection are formed in the housing.
  • Plug contacts for establishing electrical and/or electronic connections between cables, various components or the like and busbars are known in various designs and for various areas of application.
  • the plug contacts are plugged into corresponding receiving contacts or socket elements, whereby the receiving contacts can be, for example, corresponding openings in busbars or the like.
  • the plug contacts themselves can be connected to electrical components or intended for connection to electrical cables, for which purpose the connection area of the plug contacts is designed accordingly.
  • soldering and press-fitting are different techniques for connecting a circuit board to an electrical component. Both techniques have proven themselves over the years as they ensure good and permanent electrical contact between the contact partners.
  • a disadvantage of both soldering and press-fitting is that both connection techniques are not reversible. are so that a connection once made cannot be separated again - or only with increased effort.
  • additional work steps and/or special tools are required to make the connection.
  • Plug connections which have been used in other areas of application for decades, offer an alternative here, as the connection can be easily made by hand and also separated again, i.e. it is reversible.
  • connection terminals have also been known in a variety of designs for decades.
  • the connection terminals can, for example, be designed as so-called print terminals for connecting an electrical conductor or several conductors to a circuit board, for which the connection terminals have corresponding contact pins that are pressed or soldered into the holes in the circuit board.
  • Loop-shaped clamping springs, so-called tension spring terminals, as well as U-shaped or V-shaped clamping springs are used as clamping springs, into which rigid conductors or conductors provided with a wire end ferrule can be inserted directly, i.e. without the clamping point having to be opened beforehand with a tool.
  • the clamping point between the clamping leg and the busbar section is opened, for which purpose an actuating opening is formed in the housing for inserting a tool, for example the tip of a screwdriver.
  • a tool for example the tip of a screwdriver.
  • the US 2013/115790 A1 discloses a circuit board with flat connectors for connecting to an electrical component.
  • the connector element has a connecting section at one end and an insertion section at the other end.
  • the connecting section comprises two legs that are springy towards one another and are straight.
  • XP 055334593 discloses a SKEDD connector for electrically contacting a circuit board by inserting it into a contact hole, wherein two contact legs which are resilient relative to one another and are inserted into the contact hole.
  • the JP H07 183055 A discloses a terminal block for a circuit board, in which a terminal strip, a spring and a release button are arranged in a housing.
  • the terminal strip has two clamping pieces lying opposite one another, each of which has two V-shaped bent sections for inserting through a corresponding contact hole in a circuit board. In this case, a hole is formed in each of the two terminal pieces for inserting a supply line between the sections.
  • the two clamping pieces are inserted through the contact hole in a circuit board so far that the sections and the hole formed between them protrude from the contact hole on the side of the circuit board opposite the terminal block, so that a supply line can be inserted through the hole.
  • a contact piece is inserted into a hole in a circuit board and connected to the contact hole by soldering .
  • An electrical connection terminal which is not designed as a printed terminal, but as part of a series terminal.
  • the known connection terminal has an actuating button which is arranged so that it can move in an actuating opening formed in the housing. The terminal point can be opened with the aid of the actuating button when the actuating button is pressed into the housing.
  • a plug contact designed for use with printed circuit boards has been known for some time.
  • the plug contact is designed in the manner of a spring fork and has two flat contact legs that are springy relative to one another and are connected to one another via a common connection area.
  • a connection terminal with several such plug contacts is known from EN 10 2011 011 017 A1
  • the individual plug contacts are arranged in several rows next to each other in chambers of the connection housing so that the plug contacts extend perpendicular to the plane of the circuit board.
  • the connection areas of the individual plug contacts are designed as crimp connections. This means that several conductors are connected to a circuit board in which the individual contact holes are a short distance from each other, but the individual plug contacts and thus also the connection terminal have a relatively large height.
  • subsequent connection or disconnection of individual conductors is not possible with the known connection terminal.
  • the present invention is therefore based on the object of providing a plug contact as described above which has the lowest possible height.
  • an electrical connection terminal is to be provided with which an electrical conductor can be connected to a circuit board in a simple manner.
  • the two contact legs each have a first region and a second region, the two regions being arranged at an angle ⁇ to one another, so that the contact legs are bent approximately in an L shape.
  • the first region of the two contact legs adjoins the connection region, while the ends of the second regions form the free ends of the contact legs, with which the contact legs are first inserted into the corresponding contact hole of a circuit board.
  • the two contact legs of the plug contact according to the invention do not extend in one plane, but are angled, with the angle between the two areas of the contact legs preferably being approximately 90°. If the second area of the contact legs runs with the free ends perpendicular to the plane of the circuit board into whose contact hole the plug contact is inserted, the first area of the contact legs thus extends approximately parallel to the plane of the circuit surface.
  • the plug contact according to the invention has the advantage that the working area of the plug contact that is effective when the contact legs are inserted into the contact hole, ie the area that generates the restoring force of the plug contact, is essentially in the first area of the contact legs. In this area, the contact legs are primarily subjected to torsion and not bending, which means that the plug contact is more elastic than a plug contact with straight, non-angled contact legs. This makes it easier to insert the plug contact into a contact hole or to pull it out of the contact hole again.
  • connection area and the second areas of the two contact legs run essentially parallel to one another.
  • the connection area thus extends - just like the second areas of the two contact legs - perpendicular to the plane of a circuit board into whose contact hole the plug contact is to be inserted, so that the plug contact is angled twice overall.
  • the two contact legs have different lengths, i.e. there is a first, longer contact leg and a second, shorter contact leg.
  • a guide section is formed at the free end of the longer contact leg, which is arranged in front of the free end of the shorter contact leg in the direction of insertion of the plug contact.
  • the guide section serves as an insertion and centering aid when inserting the plug contact into the corresponding contact hole in a circuit board.
  • the guide section preferably has a wedge-shaped or semicircular outer contour on its side facing away from the connection area and thus facing the contact hole when inserted.
  • the guide section of the first, longer contact leg slides into the contact hole before the second, shorter contact leg also dips into the contact hole, with the two contact legs then being pressed towards one another by the contact wall of the contact hole, so that the distance between the two contact legs is reduced compared to the non-plugged-in state.
  • a further embodiment of the invention provides that the two contact legs have a wave-shaped outer contour extending in the longitudinal direction.
  • the area of the wave crest of the wave-shaped outer contour of the contact legs forms the contact area of the contact legs that contacts the contact hole when plugged in.
  • the two contact legs are then bent as far as possible towards each other so that the normal contact force between the contact legs and the inner wall of the contact hole is at a maximum.
  • the insertion force is small enough, however, so that the plug contact can be easily installed by hand on its own - or together with several plug contacts arranged in a higher-pole plug.
  • the two contact legs have an outer contour that is rounded in cross-section, at least in their contact area.
  • the outer edges of the contact legs are thus rounded, at least in the area in which the Contact legs that contact the contact hole when plugged in are machined so that they do not have any sharp edges.
  • the outer contour of the contact legs can have a radius that is smaller than the radius of the contact hole. This makes it possible to plug and unplug the plug contact several times without causing major damage to the inner wall of the contact hole in the circuit board. Without the advantageously provided rounded outer contour, grooves can form in the wall of the contact hole after a few plug-in cycles, which can damage the surface of the wall of the contact hole.
  • the electrical connection terminal has a plug contact according to the invention, which is arranged at least partially in the housing in such a way that the busbar piece is formed by the connection area of the plug contact.
  • the spring-loaded clamp connection is thus formed by the clamping leg of the clamping spring and the connection area of the plug contact, with the contact legs of the plug contact protruding with their second areas from the underside of the housing.
  • the underside of the housing is the side that faces the circuit board when the connection terminal is placed on the circuit board.
  • connection terminal has a plug contact according to the invention
  • the connection terminal can also have a relatively low overall height.
  • a conductor to be connected can be easily connected to the connection terminal and thus also to a circuit board via the spring-loaded terminal connection. If necessary, the electrical conductor can also be pulled out of the connection terminal again when the spring-loaded terminal connection is opened, so that the electrical connection between the conductor and the circuit board can also be released again.
  • connection area of the electrical connection terminal runs parallel to the second areas of the two contact legs, the conductor insertion opening is arranged on the top of the housing and an electrical conductor to be connected is inserted into the connection terminal perpendicular to the plane of the circuit board.
  • the conductor is then pressed against the connection area of the plug contact by the free end of the contact leg, which creates an electrically conductive connection between the conductor and the plug contact.
  • the conductor can be easily removed from the connection terminal by opening the clamping point, for which the clamping leg of the clamping spring is deflected against its spring force using a tool inserted into the actuating opening or an actuating button arranged in the actuating opening.
  • the conductor can then be pulled out again from the clamping point between the clamping leg and the connection area of the plug contact.
  • connection area of the plug contact facing the clamping leg.
  • connection area increases the surface pressure between the inserted conductor and the plug contact, which leads to a lower contact resistance.
  • a further advantageous embodiment provides that several adjustment elements are formed on the underside of the housing, which are inserted into corresponding recesses in the circuit board when the connection terminal is placed on the circuit board.
  • the ends of the adjustment elements are preferably conical, which makes it easier to insert the adjustment elements into the corresponding recesses in the circuit board.
  • the length of the adjustment elements is selected such that when the connection terminal is placed on the circuit board, the adjustment elements first engage with their free ends in the corresponding recesses in the circuit board before the free ends of the contact legs of the plug contact enter the corresponding contact holes in the circuit board.
  • the electrical connection terminal in addition to the adjusting elements, several locking elements are formed on the underside of the housing, which engage in corresponding Recesses in the circuit board. Appropriate locking projections or locking lugs can ensure that the electrical connection terminal is securely attached to a circuit board after it has been placed on it.
  • the locking elements are preferably designed in such a way that they can be transferred from a first, non-latching state to a second, latching state and vice versa. This makes it possible to release the locking between the housing of the electrical connection terminal and the circuit board so that the electrical connection terminal can be lifted off the circuit board again if necessary.
  • the Fig.1 and 2 show a plug contact 1 for contacting a circuit board 2, for which the plug contact 1 is inserted into a corresponding contact hole 3 in the circuit board 2.
  • the plug contact 1 is made of a metallic flat material
  • the punched and bent plug contact 1 has two contact legs 4, 5 which are resilient relative to one another, a connection region 6 and a connecting region 7, the two contact legs 4, 5 being connected to one another and to the connection region 6 via the connecting region 7.
  • the two contact legs 4, 5 each have a first region 4a, 5a and a second region 4b, 5b which are arranged at an angle ⁇ to one another.
  • the angle ⁇ in the preferred embodiment shown in the figures is approximately 90°, so that the two contact legs 4, 5 are bent approximately in an L-shape.
  • the two contact legs 4, 5 run parallel to one another, so that the angle between the two regions 4a, 4b of the first contact leg 4 corresponds to the angle between the two regions 5a, 5b of the second contact leg 5.
  • the two first regions 4a, 5a of the contact legs 4, 5, which in the preferred embodiment shown in the figures are bent approximately in an L-shape, are arranged at an angle ⁇ to one another.
  • Fig.1 and 2 shown orientation run horizontally, adjoin the connection region 7, so that the ends of the two second regions 4b, 5b - which run vertically in the illustration shown - form the free ends 4c, 5c of the contact legs 4, 5.
  • connection region 6 and the second regions 4b, 5b of the two contact legs 4, 5 run parallel to one another, so that the first regions 4a, 5a of the contact legs 4, 5 and the connection region 6 are also arranged at an angle ⁇ to one another, which is also approximately 90°.
  • the second regions 4b, 5b of the two contact legs 4, 5 and the connection region 6 extend perpendicular to the plane of the circuit board 2, while the first regions 4a, 5a of the two contact legs 4, 5 extend parallel to the plane of the circuit board 2.
  • the two contact legs 4, 5 have different lengths, with a guide section 8 being arranged at the free end 4c of the longer, first contact leg 4, which is located in the insertion direction E of the plug contact 1 in front of the free end 5c of the shorter, second contact leg 5.
  • the guide section 8 serves as an insertion and centering aid when inserting the plug contact 1 into the corresponding contact hole 3 of the circuit board 2.
  • the guide section 8 has For this purpose, on its side facing away from the connection area 6, which faces the contact hole 3 when plugged in, it has a wedge-shaped outer contour which is the first to dip into the contact hole 3 when the plug contact 1 is inserted.
  • the contact legs 4, 5 have a wave-shaped outer contour extending in the longitudinal direction in their second regions 4b, 5b, with the contact region 4d, 5d of the contact legs 4, 5 being arranged in the region of the wave crest of the wave-shaped outer contour.
  • the two contact legs 4, 5 are bent towards each other as far as possible, so that the normal contact force between the contact legs 4, 5 and the inner wall 9 of the contact hole 3 is at a maximum.
  • the plugging force is small enough, however, so that the plug-in contact 1 can be easily assembled by hand on its own - or together with several plug-in contacts 1 arranged in a higher-pole connection terminal 10. If the contact legs 4, 5 are inserted into the contact hole 3 so that the first regions 4b, 5b are bent towards each other, the contact legs 4, 5 are subjected to torsion in their first regions 4a, 5a so that the plug contact 1 is more elastic than if the contact legs were only subjected to bending.
  • the contact leg 4 has an outer contour that is rounded in cross-section, at least in the contacting area 4d.
  • the outer contour of the second contact leg 5 in the contacting area 5d is also rounded in cross-section accordingly.
  • the contact leg 4 is machined in such a way that the outer contour in the contacting area 4d has no edges, but is rounded or provided with a radius.
  • the radius of the outer contour is slightly smaller than the radius of the contact hole 3, so that damage to the inner wall 9 of the contact hole 3 is prevented when the contact legs 4, 5 are inserted into the contact hole 3.
  • a plug contact 1 designed in this way enables more plugging and unplugging cycles than would be the case with a plug contact 1 in which the outer contour of the contact legs was not rounded.
  • the edges can cause Grooves form in the inner wall 9 of the contact hole 3, which can damage the surface of the inner wall 9 of the contact hole 3.
  • the Fig.4 and 5 show a preferred embodiment of an electrical connection terminal 10 according to the invention, which has a housing 11, usually made of plastic, in which several clamping springs 12 are arranged.
  • the embodiment of the electrical connection terminal 10 shown in the figures serves to connect five individual conductors, so that a total of five clamping springs 12 are arranged in the housing 11.
  • Each clamping spring 12 is assigned a plug contact 1 in such a way that the connection area 6 of a plug contact 1 together with the free end of the clamping leg 13 of a clamping spring 12 forms a spring clamp connection for an electrical conductor introduced into the housing 11 through a conductor insertion opening 15. Since the connection terminal 10 is intended for the connection of five conductors, five conductor insertion openings 15 and five actuation openings 16 for opening a spring clamp connection are also formed in the housing 11. In particular, from the illustration of the connection terminal 10 from below at an angle according to Fig.
  • connection terminal 10 has a reduced height.
  • adjacent plug contacts 1 are each arranged offset by 180° from one another, whereby a larger distance is achieved between the free ends 4c, 5c of adjacent plug contacts 1 without the width of the connection terminal 10.
  • the connection terminal 10 can therefore have very small dimensions overall.
  • a plurality of grooves 18 are formed on the side of the connection area 6 facing the clamping leg 13, whereby the surface pressure between an inserted conductor pressed against the connection area 6 by the end of the clamping leg 13 and the connection area 6 is increased.
  • the two locking elements 20 each have two locking lugs 21 lying opposite one another.
  • a locking pin 22 arranged between the opposing locking lugs 21 and designed to be displaceable in the longitudinal direction of the locking element 20 prevents the locking lugs 21 from springing back unintentionally when the locking pin 22 is in the position shown in Fig. 4b shown locking position between the two locking lugs 21.
  • an actuating pushbutton 23 is arranged in a movable manner in each of the actuating openings 16. If the actuating pushbutton 23 is pressed into the actuating opening 16 of the housing 11, the actuating pushbutton 23 deflects the clamping leg 13 of the clamping spring 12 against its spring force, so that a connected conductor can be pulled out of the clamping point or a flexible conductor can be inserted into the clamping point.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Description

Die Erfindung betrifft einen Steckkontakt zur elektrischen Kontaktierung einer Leiterplatte mittels Einsteckens des Steckkontakts in ein Kontaktloch der Leiterplatte, mit zwei relativ zueinander federnden Kontaktschenkeln, einem Anschlussbereich und einem die beiden Kontaktschenkel miteinander und mit dem Anschlussbereich verbindenden Verbindungsbereich, wobei der Stecckontakt aus einem metallischen Flachmaterial ausgestanzt ist.The invention relates to a plug contact for electrically contacting a circuit board by inserting the plug contact into a contact hole in the circuit board, with two contact legs that are resilient relative to one another, a connection area and a connection area that connects the two contact legs to one another and to the connection area, wherein the plug contact is punched out of a metallic flat material.

Außerdem betrifft die Erfindung auch eine elektrische Anschlussklemme mit einem Gehäuse, mit einer Klemmfeder und mit einem Stromschienenstück, wobei die Klemmfeder einen Klemmschenkel und einen Anlageschenkel aufweist und der Klemmschenkel mit dem Stromschienenstück einen Federkraftklemmanschluss für einen anzuschließenden elektrischen Leiter bilden und wobei in dem Gehäuse eine Leitereinführungsöffnung zum Einführen eines anzuschließenden elektrischen Leiters und eine Betätigungsöffnung zum Öffnen des Federkraftklemmanschlusses ausgebildet sind.Furthermore, the invention also relates to an electrical connection terminal with a housing, with a clamping spring and with a busbar piece, wherein the clamping spring has a clamping leg and a contact leg and the clamping leg with the busbar piece form a spring-loaded clamping connection for an electrical conductor to be connected and wherein a conductor insertion opening for inserting an electrical conductor to be connected and an actuating opening for opening the spring-loaded clamping connection are formed in the housing.

Steckkontakte zur Herstellung von elektrischen und/oder elektronischen Verbindungen zwischen Leitungen, verschiedenen Bauteilen oder dergleichen und Stromschienen sind in verschiedenen Ausführungsformen und für verschiedene Einsatzbereiche bekannt. Die Steckkontakte werden dazu in korrespondierende Aufnahmekontakte oder Buchsenelemente eingesteckt, wobei es sich bei den Aufnahmekontakten beispielsweise um entsprechende Öffnungen in Stromschienen oder dergleichen handeln kann. Die Steckkontakte selber können mit elektrischen Bauteilen verbunden oder zur Verbindung mit elektrischen Leitungen vorgesehen sein, wozu der Anschlussbereich der Steckkontakte entsprechend ausgebildet ist.Plug contacts for establishing electrical and/or electronic connections between cables, various components or the like and busbars are known in various designs and for various areas of application. The plug contacts are plugged into corresponding receiving contacts or socket elements, whereby the receiving contacts can be, for example, corresponding openings in busbars or the like. The plug contacts themselves can be connected to electrical components or intended for connection to electrical cables, for which purpose the connection area of the plug contacts is designed accordingly.

Für die Verbindung zwischen einer Leiterplatte und einem elektrischen Bauteil gibt es unterschiedliche Techniken, wobei sich in der Praxis vor allem das Löten und das Einpressen etabliert haben. Beide Techniken haben sich über Jahre bewährt, da sie einen guten und dauerhaften elektrischen Kontakt zwischen den Kontaktpartnern gewährleisten. Ein Nachteil sowohl des Lötens als auch des Einpressens besteht darin, dass beide Verbindungstechniken nicht reversibel sind, so dass eine einmal hergestellte Verbindung nicht - oder nur mit erhöhtem Aufwand - wieder getrennt werden kann. Darüber hinaus sind zur Herstellung der Verbindung zusätzliche Arbeitsschritte und/oder spezielle Werkzeuge erforderlich. Hier bieten Steckverbindungen, die in anderen Anwendungsbereichen seit Jahrzehnten verwendet werden, eine Alternative, da die Verbindung einfach von Hand hergestellt und darüber hinaus auch wieder getrennt werden kann, also reversibel ist.There are different techniques for connecting a circuit board to an electrical component, with soldering and press-fitting being the most popular in practice. Both techniques have proven themselves over the years as they ensure good and permanent electrical contact between the contact partners. A disadvantage of both soldering and press-fitting is that both connection techniques are not reversible. are so that a connection once made cannot be separated again - or only with increased effort. In addition, additional work steps and/or special tools are required to make the connection. Plug connections, which have been used in other areas of application for decades, offer an alternative here, as the connection can be easily made by hand and also separated again, i.e. it is reversible.

Auch elektrische Anschlussklemmen sind in einer Vielzahl von Ausführungsformen seit Jahrzehnten bekannt. Die Anschlussklemmen können beispielsweise zum Anschluss eines elektrischen Leiters oder mehrere Leiter an eine Leiterplatte als sogenannte Printklemme ausgebildet sein, wozu die Anschlussklemmen entsprechende Kontaktpins aufweisen, die in die Löcher in der Leiterplatte eingepresst oder eingelötet werden. Als Klemmfedern werden sowohl schlaufenförmige Klemmfedern, sogenannte Zugfederklemmen, als auch U-förmige oder V-förmige Klemmfedern eingesetzt, in die starre Leiter oder mit einer Aderendhülse versehene Leiter direkt, d. h. ohne das die Klemmstelle vorher mit einem Werkzeug geöffnet werden muss, eingesteckt werden können. Zum Anschließen von flexiblen Leitern wird die Klemmstelle zwischen dem Klemmschenkel und dem Stromschienenstück geöffnet, wozu im Gehäuse eine Betätigungsöffnung zum Einführen eines Werkzeugs, beispielsweise der Spitze eines Schraubendrehers, ausgebildet ist. Bei den bekannten U-förmigen oder V-förmigen Klemmfedern wird der anzuschließende Leiter vom Klemmschenkel gegen das Stromschienenstück gedrückt, wodurch die elektrische Verbindung zwischen dem Leiter und dem Stromschienenstück hergestellt wird.Electrical connection terminals have also been known in a variety of designs for decades. The connection terminals can, for example, be designed as so-called print terminals for connecting an electrical conductor or several conductors to a circuit board, for which the connection terminals have corresponding contact pins that are pressed or soldered into the holes in the circuit board. Loop-shaped clamping springs, so-called tension spring terminals, as well as U-shaped or V-shaped clamping springs are used as clamping springs, into which rigid conductors or conductors provided with a wire end ferrule can be inserted directly, i.e. without the clamping point having to be opened beforehand with a tool. To connect flexible conductors, the clamping point between the clamping leg and the busbar section is opened, for which purpose an actuating opening is formed in the housing for inserting a tool, for example the tip of a screwdriver. With the known U-shaped or V-shaped clamping springs, the conductor to be connected is pressed against the busbar section by the clamping leg, thereby establishing the electrical connection between the conductor and the busbar section.

Die US 2013/115790 A1 offenbart eine Platine mit flach ausgestalteten Anschlüssen zum Anschließen an eine elektrische Komponente. Das Anschlusselement weist einen Verbindungsabschnitt an seinem einen Ende und einen Einführabschnitt an seinem anderen Ende auf. Der Verbindungsabschnitt umfasst zwei zueinander federnde Schenkel die gerade ausgestaltet sind.The US 2013/115790 A1 discloses a circuit board with flat connectors for connecting to an electrical component. The connector element has a connecting section at one end and an insertion section at the other end. The connecting section comprises two legs that are springy towards one another and are straight.

Die XP 055334593 offenbart einen SKEDD Steckverbinder zur elektrischen Kontaktierung einer Leiterplatte mittels Einsteckens in ein Kontaktloch, wobei zwei relativ zueinander federnde Kontaktschenkel vorgesehen sind, die in das Kontaktloch eingeschoben werden.XP 055334593 discloses a SKEDD connector for electrically contacting a circuit board by inserting it into a contact hole, wherein two contact legs which are resilient relative to one another and are inserted into the contact hole.

Die JP H07 183055 A offenbart einen Klemmenblock für eine Leiterplatte, bei dem in einem Gehäuse eine Klemmleiste, eine Feder und ein Freigabeknopf angeordnet sind. Die Klemmleiste hat zwei einander gegenüberliegende Klemmstücke, die jeweils zwei V-förmig gebogene Abschnitte zum Durchstecken durch ein entsprechendes Kontaktloch einer Leiterplatte aufweisen. Dabei ist in beiden Klemmenstücken jeweils eine Bohrung zur Durchführung einer Zuleitung zwischen die Abschnitte ausgebildet. Bei dem bekannten Klemmenblock werden die beiden Klemmstücke so weit durch das Kontaktloch in einer Leiterplatte durchgesteckt, dass die Abschnitte und die dazwischen ausgebildete Bohrung auf der dem Klemmenblock gegenüber liegenden Seite der Leiterplatte aus dem Kontaktloch herausragen, so dass eine Zuleitung durch die Bohrung gesteckt werden kann. Zur Befestigung der Klemmleiste wird ein Kontaktstück in ein Loch einer Leiterplatte eingeführt und durch Löten mit dem Kontaktloch verbunden.The JP H07 183055 A discloses a terminal block for a circuit board, in which a terminal strip, a spring and a release button are arranged in a housing. The terminal strip has two clamping pieces lying opposite one another, each of which has two V-shaped bent sections for inserting through a corresponding contact hole in a circuit board. In this case, a hole is formed in each of the two terminal pieces for inserting a supply line between the sections. In the known terminal block, the two clamping pieces are inserted through the contact hole in a circuit board so far that the sections and the hole formed between them protrude from the contact hole on the side of the circuit board opposite the terminal block, so that a supply line can be inserted through the hole. To attach the terminal strip, a contact piece is inserted into a hole in a circuit board and connected to the contact hole by soldering .

Aus der DE 10 2008 039 232 A1 ist eine elektrische Anschlussklemme bekannt, die jedoch nicht als Printklemme, sondern als Teil einer Reihenklemme ausgebildet ist. Die bekannte Anschlussklemme weist einen Betätigungsdrücker auf, der in einer im Gehäuse ausgebildeten Betätigungsöffnung verschiebbar angeordneten ist. Mit Hilfe des Betätigungsdrückers kann die Klemmstelle geöffnet werden, wenn der Betätigungsdrücker in das Gehäuse hineingedrückt wird.From the EN 10 2008 039 232 A1 An electrical connection terminal is known which is not designed as a printed terminal, but as part of a series terminal. The known connection terminal has an actuating button which is arranged so that it can move in an actuating opening formed in the housing. The terminal point can be opened with the aid of the actuating button when the actuating button is pressed into the housing.

Aus der Praxis ist seit einiger Zeit ein zur Anwendung bei Leiterplatten ausgebildeter Steckkontakt bekannt, der nach Art einer Federgabel ausgebildet ist und zwei flache, relativ zueinander federnde Kontaktschenkel aufweist, die über einen gemeinsamen Verbindungsbereich miteinander verbunden sind. Eine Anschlussklemme mit mehreren derartigen Steckkontakten ist aus der DE 10 2011 011 017 A1 bekannt. Die einzelnen Steckkontakte sind dabei in mehreren Reihen nebeneinander in Kammern des Anschlussgehäuses so angeordnet, dass sich die Steckkontakte senkrecht zur Ebene der Leiterplatte erstrecken. Zum Anschluss einzelner Leiter sind bei den einzelnen Steckkontakten die Anschlussbereiche als Crimpanschluss ausgebildet. Dadurch können zwar mehrere Leiter mit einer Leiterplatte verbunden werden, bei der die einzelnen Kontaktlöcher einen geringen Abstand zueinander aufweisen, die einzelnen Steckkontakte und damit auch die Anschlussklemme weisen jedoch eine relativ große Bauhöhe auf. Darüber hinaus ist ein nachträgliches Anschließen oder Lösen einzelner Leiter bei der bekannten Anschlussklemme nicht möglich ist.A plug contact designed for use with printed circuit boards has been known for some time. The plug contact is designed in the manner of a spring fork and has two flat contact legs that are springy relative to one another and are connected to one another via a common connection area. A connection terminal with several such plug contacts is known from EN 10 2011 011 017 A1 The individual plug contacts are arranged in several rows next to each other in chambers of the connection housing so that the plug contacts extend perpendicular to the plane of the circuit board. To connect individual conductors, the connection areas of the individual plug contacts are designed as crimp connections. This means that several conductors are connected to a circuit board in which the individual contact holes are a short distance from each other, but the individual plug contacts and thus also the connection terminal have a relatively large height. In addition, subsequent connection or disconnection of individual conductors is not possible with the known connection terminal.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen eingangs beschrieben Steckkontakt zur Verfügung zu stellen, der eine möglichst geringe Bauhöhe aufweist. Darüber hinaus soll eine elektrische Anschlussklemme angegeben werden, mit der ein elektrischer Leiter auf einfache Art und Weise mit einer Leiterplatte verbunden werden kann.The present invention is therefore based on the object of providing a plug contact as described above which has the lowest possible height. In addition, an electrical connection terminal is to be provided with which an electrical conductor can be connected to a circuit board in a simple manner.

Diese Aufgabe ist bei dem eingangs beschriebenen Steckkontakt mit den Merkmalen des Patentanspruchs 1 dadurch gelöst, dass die beiden Kontaktschenkel jeweils einen ersten Bereich und einen zweiten Bereich aufweisen, wobei die beiden Bereiche unter einem Winkel α zueinander angeordnet sind, so dass die Kontaktschenkel etwa L-förmig abgebogen sind. Der jeweils erste Bereich der beiden Kontaktschenkel schließt dabei an den Verbindungsbereich an, während die Enden der zweiten Bereiche die freien Enden der Kontaktschenkel bilden, mit denen voran die Kontaktschenkel in das korrespondierende Kontaktloch einer Leiterplatte eingesteckt werden.This object is achieved in the plug contact described at the outset with the features of patent claim 1 in that the two contact legs each have a first region and a second region, the two regions being arranged at an angle α to one another, so that the contact legs are bent approximately in an L shape. The first region of the two contact legs adjoins the connection region, while the ends of the second regions form the free ends of the contact legs, with which the contact legs are first inserted into the corresponding contact hole of a circuit board.

Im Unterschied zu den aus dem Stand der bekannten Steckkontakten erstrecken sich bei dem erfindungsgemäßen Steckkontakt die beiden Kontaktschenkel somit nicht in einer Ebene, sondern sind abgewinkelt, wobei der Winkel zwischen den beiden Bereichen der Kontaktschenkel vorzugsweise in etwa 90° beträgt. Verläuft der zweite Bereich der Kontaktschenkel mit den freien Enden senkrecht zur Ebene der Leiterplatte, in deren Kontaktloch der Stecckontakt eingesteckt wird, so erstreckt sich der erste Bereich der Kontaktschenkel somit näherungsweise parallel zur Ebene der Leiterfläche.In contrast to the known plug contacts, the two contact legs of the plug contact according to the invention do not extend in one plane, but are angled, with the angle between the two areas of the contact legs preferably being approximately 90°. If the second area of the contact legs runs with the free ends perpendicular to the plane of the circuit board into whose contact hole the plug contact is inserted, the first area of the contact legs thus extends approximately parallel to the plane of the circuit surface.

Aufgrund der Abwinklung der Kontaktschenkel ergibt sich eine Verringerung der Bauhöhe des Steckkontakts. Darüber hinaus weist der erfindungsgemäße Steckkontakt den Vorteil auf, dass der beim Einstecken der Kontaktschenkel in das Kontaktloch wirksame Arbeitsbereich des Steckkontakts, d.h. der Bereich, der die Rückstellkraft des Steckkontakts erzeugt, im Wesentlichen im ersten Bereich der Kontaktschenkel liegt. Die Kontaktschenkel werden in diesem Bereich primär auf Torsion und nicht auf Biegung beansprucht, was dazu führt, dass der Steckkontakt elastischer ist, im Vergleich zu einem Steckkontakt mit geraden, nicht angewinkelten Kontaktschenkeln. Der Steckkontakt lässt sich dadurch einfacher in ein Kontaktloch einstecken bzw. wieder aus dem Kontaktloch herausziehen.Due to the bending of the contact legs, the overall height of the plug contact is reduced. In addition, the plug contact according to the invention has the advantage that the working area of the plug contact that is effective when the contact legs are inserted into the contact hole, ie the area that generates the restoring force of the plug contact, is essentially in the first area of the contact legs. In this area, the contact legs are primarily subjected to torsion and not bending, which means that the plug contact is more elastic than a plug contact with straight, non-angled contact legs. This makes it easier to insert the plug contact into a contact hole or to pull it out of the contact hole again.

Gemäß einer vorteilhaften Ausgestaltung des erfindungsgemäßen Steckkontakts verlaufen der Anschlussbereich und die zweiten Bereiche der beiden Kontaktschenkel im Wesentlichen parallel zueinander. Der Anschlussbereich erstreckt sich somit - ebenso wie die zweiten Bereiche der beiden Kontaktschenkel - senkrecht zur Ebene einer Leiterplatte, in deren Kontaktloch der Steckkontakt eingesteckt werden soll, so dass der Steckkontakt insgesamt zweifach abgewinkelt ist.According to an advantageous embodiment of the plug contact according to the invention, the connection area and the second areas of the two contact legs run essentially parallel to one another. The connection area thus extends - just like the second areas of the two contact legs - perpendicular to the plane of a circuit board into whose contact hole the plug contact is to be inserted, so that the plug contact is angled twice overall.

Gemäß einer weiteren besonders bevorzugten Ausgestaltung der Erfindung weisen die beiden Kontaktschenkel unterschiedliche Längen auf, d. h. es gibt einen ersten, längeren Kontaktschenkel und einen zweiten, kürzeren Kontaktschenkel. Am freien Ende des längeren Kontaktschenkels ist ein Führungsabschnitt ausgebildet, der in Einsteckrichtung des Steckkontakts vor dem freien Ende des kürzeren Kontaktschenkels angeordnet ist. Der Führungsabschnitt dient dabei als Einführ- und Zentrierhilfe beim Einstecken des Steckkontakts in das korrespondierende Kontaktloch in einer Leiterplatte. Hierzu weist der Führungsabschnitt auf seiner dem Verbindungsbereich abgewandten und damit beim Einstecken dem Kontaktloch zugewandten Seite vorzugsweise eine keilförmige oder halbkreisförmige Außenkontur auf. Beim Einstecken des Steckkontakts in das Kontaktloch gleitet somit zunächst der Führungsabschnitt des ersten, längeren Kontaktschenkels in das Kontaktloch, bevor auch der zweite, kürzere Kontaktschenkel in das Kontaktloch taucht, wobei die beiden Kontaktschenkel dann durch die Kontaktwand des Kontaktloches aufeinander zu gedrückt werden, so dass sich der Abstand zwischen den beiden Kontaktschenkeln - im Vergleich zum nicht eingesteckten Zustand - verringert.According to another particularly preferred embodiment of the invention, the two contact legs have different lengths, i.e. there is a first, longer contact leg and a second, shorter contact leg. A guide section is formed at the free end of the longer contact leg, which is arranged in front of the free end of the shorter contact leg in the direction of insertion of the plug contact. The guide section serves as an insertion and centering aid when inserting the plug contact into the corresponding contact hole in a circuit board. For this purpose, the guide section preferably has a wedge-shaped or semicircular outer contour on its side facing away from the connection area and thus facing the contact hole when inserted. When inserting the When the plug contact is inserted into the contact hole, the guide section of the first, longer contact leg slides into the contact hole before the second, shorter contact leg also dips into the contact hole, with the two contact legs then being pressed towards one another by the contact wall of the contact hole, so that the distance between the two contact legs is reduced compared to the non-plugged-in state.

Eine weitere Ausgestaltung der Erfindung sieht vor, dass die beiden Kontaktschenkel eine sich in Längsrichtung erstreckende wellenförmige Außenkontur aufweisen. Vorzugsweise bildet dabei der Bereich des Wellenbergs der wellenförmigen Außenkontur der Kontaktschenkel den im eingesteckten Zustand das Kontaktloch kontaktierenden Kontaktierungsbereich der Kontaktschenkel. Im gesteckten Zustand des Steckkontakts sind dann die beiden Kontaktschenkel maximal aufeinander zu gebogen, so dass die Kontakt-Normalkraft zwischen den Kontaktschenkeln und der Innenwandung des Kontaktlochs maximal ist. Beim Einstecken des Steckkontakts in das Kontaktloch ist die Stecckraft jedoch klein genug, so dass der Steckkontakt alleine - oder zusammen mit mehreren Steckkontakten in einem höherpoligen Stecker angeordnet - gut von Hand montiert werden kann.A further embodiment of the invention provides that the two contact legs have a wave-shaped outer contour extending in the longitudinal direction. Preferably, the area of the wave crest of the wave-shaped outer contour of the contact legs forms the contact area of the contact legs that contacts the contact hole when plugged in. When the plug contact is plugged in, the two contact legs are then bent as far as possible towards each other so that the normal contact force between the contact legs and the inner wall of the contact hole is at a maximum. When the plug contact is plugged into the contact hole, the insertion force is small enough, however, so that the plug contact can be easily installed by hand on its own - or together with several plug contacts arranged in a higher-pole plug.

Gemäß einer weiteren vorteilhaften Ausgestaltung des erfindungsgemäßen Steckkontakts weisen die beiden Kontaktschenkel zumindest in ihrem Kontaktbereich eine im Querschnitt abgerundete Außenkontur auf. Die Außenränder der Kontaktschenkel sind somit zumindest in dem Bereich, in dem die Kontaktschenkel im eingesteckten Zustand das Kontaktloch kontaktieren, so bearbeitet, dass sie keine scharfen Kanten haben. Die Außenkontur der Kontaktschenkel kann dazu einen Radius aufweisen, der kleiner als der Radius des Kontaktloches ist. Hierdurch ist es möglich, den Steckkontakt mehrfach zu stecken und zu ziehen, ohne dass es zu größeren Beschädigungen an der Innenwandung des Kontaktloches in der Leiterplatte kommt. Ohne die vorteilhaft vorgesehene abgerundete Außenkontur können nach einigen Steckzyklen Riefen in der Wandung des Kontaktloches entstehen, durch die Oberfläche der Wandung des Kontaktloches beschädigt werden kann.According to a further advantageous embodiment of the plug contact according to the invention, the two contact legs have an outer contour that is rounded in cross-section, at least in their contact area. The outer edges of the contact legs are thus rounded, at least in the area in which the Contact legs that contact the contact hole when plugged in are machined so that they do not have any sharp edges. The outer contour of the contact legs can have a radius that is smaller than the radius of the contact hole. This makes it possible to plug and unplug the plug contact several times without causing major damage to the inner wall of the contact hole in the circuit board. Without the advantageously provided rounded outer contour, grooves can form in the wall of the contact hole after a few plug-in cycles, which can damage the surface of the wall of the contact hole.

Die eingangs genannte Aufgabe ist bei der erfindungsgemäßen elektrischen Anschlussklemme mit den Merkmalen des Patentanspruchs 6 gelöst. Die elektrische Anschlussklemme weist einen erfindungsgemäßen Steckkontakt auf, der derart zumindest teilweise im Gehäuse angeordnet ist, dass das Stromschienenstück von dem Anschlussbereich des Steckkontakts gebildet ist. Der Federkraftklemmanschluss wird somit von dem Klemmschenkel der Klemmfeder und dem Anschlussbereich des Steckkontakts gebildet, wobei die Kontaktschenkel des Steckkontakts mit ihren zweiten Bereichen aus der Unterseite des Gehäuses herausragen. Als Unterseite des Gehäuses wird dabei die Seite bezeichnet, die der Leiterplatte zugewandt ist, wenn die Anschlussklemme auf die Leiterplatte aufgesetzt wird.The object mentioned at the beginning is achieved in the electrical connection terminal according to the invention with the features of patent claim 6. The electrical connection terminal has a plug contact according to the invention, which is arranged at least partially in the housing in such a way that the busbar piece is formed by the connection area of the plug contact. The spring-loaded clamp connection is thus formed by the clamping leg of the clamping spring and the connection area of the plug contact, with the contact legs of the plug contact protruding with their second areas from the underside of the housing. The underside of the housing is the side that faces the circuit board when the connection terminal is placed on the circuit board.

Dadurch, dass die elektrische Anschlussklemme einen erfindungsgemäßen Steckkontakt aufweist, kann auch die Anschlussklemme eine relativ geringe Bauhöhe aufweisen. Darüber hinaus kann ein anzuschließender Leiter über den Federkraftklemmanschluss einfach mit der Anschlussklemme und damit auch mit einer Leiterplatte verbunden werden. Bei Bedarf kann dabei der elektrische Leiter auch wieder aus der Anschlussklemme herausgezogen werden, wenn der Federkraftklemmanschluss geöffnet wird, so dass die elektrische Verbindung zwischen dem Leiter und der Leiterplatte auch wieder lösbar ist.Because the electrical connection terminal has a plug contact according to the invention, the connection terminal can also have a relatively low overall height. In addition, a conductor to be connected can be easily connected to the connection terminal and thus also to a circuit board via the spring-loaded terminal connection. If necessary, the electrical conductor can also be pulled out of the connection terminal again when the spring-loaded terminal connection is opened, so that the electrical connection between the conductor and the circuit board can also be released again.

Verläuft bei der erfindungsgemäßen elektrischen Anschlussklemme der Anschlussbereich parallel zu den zweiten Bereichen der beiden Kontaktschenkel, so ist die Leitereinführungsöffnung auf der Oberseite des Gehäuses angeordnet und ein anzuschließender elektrischer Leiter wird senkrecht zur Ebene der Leiterplatte in die Anschlussklemme eingesteckt. Dabei wird der elektrische Leiter dann von dem freien Ende des Kontaktschenkels gegen den Anschlussbereich des Steckkontakts gedrückt, wodurch die elektrisch leitende Verbindung zwischen dem Leiter und dem Steckkontakt hergestellt wird. Ein Lösen des Leiters aus der Anschlussklemme ist einfach möglich, indem die Klemmstelle geöffnet wird, wozu der Klemmschenkel der Klemmfeder mittels eines in die Betätigungsöffnung eingeführten Werkzeugs oder eines in der Betätigungsöffnung angeordneten Betätigungsdrückers entgegen ihrer Federkraft ausgelenkt wird. Der Leiter kann dann wieder aus der Klemmstelle zwischen dem Klemmschenkel und dem Anschlussbereich des Steckkontakts herausgezogen werden.If the connection area of the electrical connection terminal according to the invention runs parallel to the second areas of the two contact legs, the conductor insertion opening is arranged on the top of the housing and an electrical conductor to be connected is inserted into the connection terminal perpendicular to the plane of the circuit board. The conductor is then pressed against the connection area of the plug contact by the free end of the contact leg, which creates an electrically conductive connection between the conductor and the plug contact. The conductor can be easily removed from the connection terminal by opening the clamping point, for which the clamping leg of the clamping spring is deflected against its spring force using a tool inserted into the actuating opening or an actuating button arranged in the actuating opening. The conductor can then be pulled out again from the clamping point between the clamping leg and the connection area of the plug contact.

Um einen guten elektrischen Kontakt zwischen einem eingesteckten elektrischen Leiter und dem Steckkontakt zu erreichen, sind auf der dem Klemmschenkel zugewandten Seite des Anschlussbereichs des Steckkontakts vorzugsweise mehrere Rillen oder Einkerbungen ausgebildet. Durch eine derartige Struktur des Anschlussbereichs wird die Flächenpressung zwischen dem eingesteckten Leiter und dem Steckkontakt erhöht, was zu einem geringeren Übergangswiderstand führt.In order to achieve good electrical contact between an inserted electrical conductor and the plug contact, several grooves or notches are preferably formed on the side of the connection area of the plug contact facing the clamping leg. Such a structure of the connection area increases the surface pressure between the inserted conductor and the plug contact, which leads to a lower contact resistance.

Zur einfachen Montage der elektrischen Anschlussklemme auf einer Leiterplatte ist gemäß einer weiteren vorteilhaften Ausgestaltung vorgesehen, dass an der Unterseite des Gehäuses mehrere Justierelemente ausgebildet sind, die beim Aufsetzen der Anschlussklemme auf die Leiterplatte in korrespondierende Ausnehmungen in der Leiterplatte einführt werden. Die Enden der Justierelemente sind dabei vorzugsweise konusförmig ausgebildet, was das Einführen der Justierelemente in die korrespondierenden Ausnehmungen in der Leiterplatte erleichtert. Darüber hinaus ist die Länge der Justierelemente so gewählt, dass beim Aufsetzen der Anschlussklemme auf die Leiterplatte zunächst die Justierelemente mit ihren freien Enden in die korrespondierenden Ausnehmungen in der Leiterplatte eingreifen, bevor die freien Enden der Kontaktschenkel des Steckkontakts in die korrespondierende Kontaktlöcher in der Leiterplatte eintaucht.To make it easy to mount the electrical connection terminal on a circuit board, a further advantageous embodiment provides that several adjustment elements are formed on the underside of the housing, which are inserted into corresponding recesses in the circuit board when the connection terminal is placed on the circuit board. The ends of the adjustment elements are preferably conical, which makes it easier to insert the adjustment elements into the corresponding recesses in the circuit board. In addition, the length of the adjustment elements is selected such that when the connection terminal is placed on the circuit board, the adjustment elements first engage with their free ends in the corresponding recesses in the circuit board before the free ends of the contact legs of the plug contact enter the corresponding contact holes in the circuit board.

Gemäß einer weiteren vorteilhaften Ausgestaltung der erfindungsgemäßen elektrischen Anschlussklemme sind zusätzlich zu den Justierelementen mehrere Rastelemente an der Unterseite des Gehäuses ausgebildet, die in korrespondierende Ausnehmungen in der Leiterplatte eingreifen. Durch entsprechende Rastvorsprünge oder Rastnasen kann sichergestellt werden, dass die elektrische Anschlussklemme nach dem Aufsetzen auf eine Leiterplatte sicher an dieser befestigt ist. Vorzugsweise sind die Rastelemente dabei so ausgebildet, dass sie aus einem ersten, nicht verrastenden Zustand in einen zweiten, verrastenden Zustand und umgekehrt überführt werden können. Dadurch besteht die Möglichkeit, die Verrastung zwischen dem Gehäuse der elektrischen Anschlussklemme und der Leiterplatte wieder zu lösen, so dass die elektrische Anschlussklemme bei Bedarf wieder von der Leiterplatte abgehoben werden kann.According to a further advantageous embodiment of the electrical connection terminal according to the invention, in addition to the adjusting elements, several locking elements are formed on the underside of the housing, which engage in corresponding Recesses in the circuit board. Appropriate locking projections or locking lugs can ensure that the electrical connection terminal is securely attached to a circuit board after it has been placed on it. The locking elements are preferably designed in such a way that they can be transferred from a first, non-latching state to a second, latching state and vice versa. This makes it possible to release the locking between the housing of the electrical connection terminal and the circuit board so that the electrical connection terminal can be lifted off the circuit board again if necessary.

Im Einzelnen gibt es nun eine Mehrzahl von Möglichkeiten, den erfindungsgemäßen Steckkontakt sowie die erfindungsgemäße elektrische Anschlussklemme auszugestalten und weiterzubilden. Dazu wird verwiesen sowohl auf die den Patentansprüchen 1 und 6 nachgeordneten Patentansprüche, als auch auf die nachfolgende Beschreibung in Verbindung mit den Zeichnungen. In den Zeichnungen

Fig. 1
eine perspektivische Darstellung eines bevorzugten Ausführungsbeispiels eines erfindungsgemäßen Steckkontakts,
Fig. 2
einen Ausschnitt einer Leiterplatte mit einem eingesteckten Steckkontakt gemäß Fig. 1,
Fig. 3
eine vergrößerte Detaildarstellung eines in ein Kontaktloch eingesteckten Kontaktschenkels, im Querschnitt,
Fig. 4
ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen elektrischen Anschlussklemme, in perspektivischer Darstellung, schräg von oben und schräg von unten, und
Fig. 5
die elektrische Anschlussklemme gemäß Fig. 4, im Querschnitt.
In detail, there are now a number of possibilities for designing and developing the plug contact according to the invention and the electrical connection terminal according to the invention. Reference is made to the patent claims subordinate to claims 1 and 6, as well as to the following description in conjunction with the drawings. In the drawings
Fig.1
a perspective view of a preferred embodiment of a plug contact according to the invention,
Fig. 2
a section of a printed circuit board with an inserted plug contact according to Fig.1 ,
Fig.3
an enlarged detailed view of a contact leg inserted into a contact hole, in cross section,
Fig.4
a preferred embodiment of an electrical connection terminal according to the invention, in perspective view, obliquely from above and obliquely from below, and
Fig.5
the electrical connection terminal according to Fig.4 , in cross section.

Die Fig. 1 und 2 zeigen einen Steckkontakt 1 zur Kontaktierung einer Leiterplatte 2, wozu der Steckkontakt 1 in ein korrespondierendes Kontaktloch 3 in der Leiterplatte 2 eingesteckt wird. Der aus einem metallischen Flachmaterial ausgestanzte und abgebogene Steckkontakt 1 weist zwei relativ zueinander federnde Kontaktschenkel 4, 5, einen Anschlussbereich 6 und einen Verbindungsbereich 7 auf, wobei die beiden Kontaktschenkel 4, 5 über den Verbindungsbereich 7 miteinander und mit dem Anschlussbereich 6 verbunden sind.The Fig.1 and 2 show a plug contact 1 for contacting a circuit board 2, for which the plug contact 1 is inserted into a corresponding contact hole 3 in the circuit board 2. The plug contact 1 is made of a metallic flat material The punched and bent plug contact 1 has two contact legs 4, 5 which are resilient relative to one another, a connection region 6 and a connecting region 7, the two contact legs 4, 5 being connected to one another and to the connection region 6 via the connecting region 7.

Die beiden Kontaktschenkel 4, 5 weisen jeweils einen ersten Bereich 4a, 5a und einen zweiten Bereich 4b, 5b auf die unter einem Winkel α zueinander angeordnet sind. Der Winkel α beträgt bei dem in den Figuren dargestellten bevorzugten Ausführungsbeispiel ca. 90°, so dass die beiden Kontaktschenkel 4, 5 etwa L-förmig abgebogen sind. Wie aus den Figuren ersichtlich ist, verlaufen die beiden Kontaktschenkel 4, 5 parallel zueinander, so dass der Winkel zwischen den beiden Bereichen 4a, 4b des ersten Kontaktschenkels 4 dem Winkel zwischen den beiden Bereichen 5a, 5b des zweiten Kontaktschenkels 5 entspricht. Die beiden ersten Bereiche 4a, 5a der Kontaktschenkel 4, 5, die bei der in den Fig. 1 und 2 dargestellten Ausrichtung horizontal verlaufen, schließen an den Verbindungsbereich 7 an, so dass die Enden der beiden zweiten Bereiche 4b, 5b - die bei der gezeigten Darstellung vertikal verlaufen - die freien Enden 4c, 5c der Kontaktschenkel 4, 5 bilden.The two contact legs 4, 5 each have a first region 4a, 5a and a second region 4b, 5b which are arranged at an angle α to one another. The angle α in the preferred embodiment shown in the figures is approximately 90°, so that the two contact legs 4, 5 are bent approximately in an L-shape. As can be seen from the figures, the two contact legs 4, 5 run parallel to one another, so that the angle between the two regions 4a, 4b of the first contact leg 4 corresponds to the angle between the two regions 5a, 5b of the second contact leg 5. The two first regions 4a, 5a of the contact legs 4, 5, which in the preferred embodiment shown in the figures are bent approximately in an L-shape, are arranged at an angle α to one another. Fig.1 and 2 shown orientation run horizontally, adjoin the connection region 7, so that the ends of the two second regions 4b, 5b - which run vertically in the illustration shown - form the free ends 4c, 5c of the contact legs 4, 5.

Bei dem dargestellten, bevorzugten Ausführungsbeispiel des Steckkontakts 1 verlaufen der Anschlussbereich 6 und die zweiten Bereiche 4b, 5b der beiden Kontaktschenkel 4, 5 parallel zueinander, so dass auch die ersten Bereiche 4a, 5a der Kontaktschenkel 4, 5 und der Anschlussbereich 6 unter einem Winkel β zueinander angeordnet sind, der ebenfalls ca. 90° beträgt. Bei der dargestellten Anordnung des Steckkontakts 1 erstrecken sich somit die zweiten Bereich 4b, 5b der beiden Kontaktschenkel 4, 5 und der Anschlussbereich 6 senkrecht zur Ebene der Leiterplatte 2, während sich die ersten Bereiche 4a, 5a der beiden Kontaktschenkel 4, 5 parallel zur Ebene der Leiterplatte 2 erstrecken.In the illustrated, preferred embodiment of the plug contact 1, the connection region 6 and the second regions 4b, 5b of the two contact legs 4, 5 run parallel to one another, so that the first regions 4a, 5a of the contact legs 4, 5 and the connection region 6 are also arranged at an angle β to one another, which is also approximately 90°. In the illustrated arrangement of the plug contact 1, the second regions 4b, 5b of the two contact legs 4, 5 and the connection region 6 extend perpendicular to the plane of the circuit board 2, while the first regions 4a, 5a of the two contact legs 4, 5 extend parallel to the plane of the circuit board 2.

Wie aus den Figuren ersichtlich ist, weisen die beiden Kontaktschenkel 4, 5 unterschiedliche Längen auf, wobei am freien Ende 4c des längeren, ersten Kontaktschenkels 4 ein Führungsabschnitt 8 angeordnet ist, der sich in Einsteckrichtung E des Steckkontakts 1 vor dem freien Ende 5c des kürzeren, zweiten Kontaktschenkels 5 befindet. Der Führungsabschnitt 8 dient dabei als Einführ- und Zentrierhilfe beim Einstecken des Steckkontakts 1 in das korrespondierende Kontaktloch 3 der Leiterplatte 2. Der Führungsabschnitt 8 weist dazu auf seiner dem Anschlussbereich 6 abgewandten Seite, die beim Einstecken dem Kontaktloch 3 zugewandt ist, eine keilförmige Außenkontur auf, die beim Einstecken des Steckkontakts 1 als erstes in das Kontaktloch 3 eintaucht.As can be seen from the figures, the two contact legs 4, 5 have different lengths, with a guide section 8 being arranged at the free end 4c of the longer, first contact leg 4, which is located in the insertion direction E of the plug contact 1 in front of the free end 5c of the shorter, second contact leg 5. The guide section 8 serves as an insertion and centering aid when inserting the plug contact 1 into the corresponding contact hole 3 of the circuit board 2. The guide section 8 has For this purpose, on its side facing away from the connection area 6, which faces the contact hole 3 when plugged in, it has a wedge-shaped outer contour which is the first to dip into the contact hole 3 when the plug contact 1 is inserted.

Aus Fig. 1 ist darüber hinaus erkennbar, dass die Kontaktschenkel 4, 5 in ihren zweiten Bereichen 4b, 5b eine sich in Längsrichtung erstreckende wellenförmige Außenkontur aufweisen, wobei der Kontaktierungsbereich 4d, 5d der Kontaktschenkel 4, 5 im Bereich des Wellenbergs der wellenförmigen Außenkontur angeordnet ist. Im eingesteckten Zustand des Steckkontakts 1 sind dadurch die beiden Kontaktschenkel 4, 5 maximal aufeinander zu gebogen, so dass die Kontakt-Normalkraft zwischen den Kontaktschenkeln 4, 5 und der Innenwandung 9 des Kontaktlochs 3 maximal ist. Beim Einstecken des Stecckontakts 1 in das Kontaktloch 3 ist die Steckkraft jedoch klein genug, so dass der Steckkontakt 1 alleine - oder auch zusammen mit mehreren Steckkontakten 1 in einer höherpoligen Anschlussklemme 10 angeordnet - gut von Hand montiert werden kann. Sind die Kontaktschenkel 4, 5 in das Kontaktloch 3 eingesteckt, so dass die ersten Bereiche 4b, 5b aufeinander zu gebogen sind, so sind die Kontaktschenkel 4, 5 in ihren ersten Bereichen 4a, 5a auf Torsion beansprucht, so dass der Steckkontakt 1 elastischer ist, als wenn die Kontaktschenkel nur auf Biegung beansprucht wäre.Out of Fig.1 It can also be seen that the contact legs 4, 5 have a wave-shaped outer contour extending in the longitudinal direction in their second regions 4b, 5b, with the contact region 4d, 5d of the contact legs 4, 5 being arranged in the region of the wave crest of the wave-shaped outer contour. When the plug-in contact 1 is plugged in, the two contact legs 4, 5 are bent towards each other as far as possible, so that the normal contact force between the contact legs 4, 5 and the inner wall 9 of the contact hole 3 is at a maximum. When the plug-in contact 1 is plugged into the contact hole 3, the plugging force is small enough, however, so that the plug-in contact 1 can be easily assembled by hand on its own - or together with several plug-in contacts 1 arranged in a higher-pole connection terminal 10. If the contact legs 4, 5 are inserted into the contact hole 3 so that the first regions 4b, 5b are bent towards each other, the contact legs 4, 5 are subjected to torsion in their first regions 4a, 5a so that the plug contact 1 is more elastic than if the contact legs were only subjected to bending.

Aus der vergrößerten Querschnittsdarstellung des in ein Kontaktloch 3 eingesteckten Kontaktschenkels 4 gemäß Fig. 3 ist ersichtlich, dass der Kontaktschenkel 4 zumindest im Kontaktierungsbereich 4d eine im Querschnitt abgerundete Außenkontur aufweist. Entsprechend ist auch die Außenkontur des zweiten Kontaktschenkels 5 im Kontaktierungsbereich 5d im Querschnitt abgerundet. Der Kontaktschenkel 4 ist dabei so bearbeitet, dass die Außenkontur im Kontaktierungsbereich 4d keine Kanten aufweist, sondern abgerundet bzw. mit einem Radius versehen ist. Der Radius der Außenkontur ist etwas geringer als der Radius des Kontaktlochs 3, so dass Beschädigungen an der Innenwandung 9 des Kontaktlochs 3 beim Einstecken der Kontaktschenkel 4, 5 in der Kontaktloch 3 verhindert werden. Dies führt dazu, dass ein derart ausgebildeter Steckkontakt 1 mehr Steck- und Ziehzyklen ermöglicht, als dies bei einem Steckkontakt 1 der Fall wäre, bei dem die Außenkontur der Kontaktschenkel nicht abgerundet wäre. Durch die Kanten können nach einigen Steckzyklen Riefen in der Innenwandung 9 des Kontaktloches 3 entstehen, wodurch die Oberfläche der Innenwandung 9 des Kontaktlochs 3 beschädigt werden kann.From the enlarged cross-sectional view of the contact leg 4 inserted into a contact hole 3 according to Fig.3 it can be seen that the contact leg 4 has an outer contour that is rounded in cross-section, at least in the contacting area 4d. The outer contour of the second contact leg 5 in the contacting area 5d is also rounded in cross-section accordingly. The contact leg 4 is machined in such a way that the outer contour in the contacting area 4d has no edges, but is rounded or provided with a radius. The radius of the outer contour is slightly smaller than the radius of the contact hole 3, so that damage to the inner wall 9 of the contact hole 3 is prevented when the contact legs 4, 5 are inserted into the contact hole 3. This means that a plug contact 1 designed in this way enables more plugging and unplugging cycles than would be the case with a plug contact 1 in which the outer contour of the contact legs was not rounded. The edges can cause Grooves form in the inner wall 9 of the contact hole 3, which can damage the surface of the inner wall 9 of the contact hole 3.

Die Fig. 4 und 5 zeigen ein bevorzugtes Ausführungsbeispiel einer erfindungsgemäßen elektrischen Anschlussklemme 10 , die ein in der Regel aus Kunststoff bestehendes Gehäuse 11 aufweist, in dem mehrere Klemmfedern 12 angeordnet sind. Das in den Figuren dargestellte Ausführungsbeispiel der elektrischen Anschlussklemme 10 dient zum Anschluss von fünf einzelnen Leitern, so dass in dem Gehäuse 11 auch insgesamt fünf Klemmfedern 12 angeordnet sind. Die einzelnen Klemmfedern 12, von denen in Fig. 5 eine in der Querschnittsdarstellung der Anschlussklemme 10 erkennbar ist, weisen jeweils einen Klemmschenkel 13 und einen Anlageschenkel 14 auf.The Fig.4 and 5 show a preferred embodiment of an electrical connection terminal 10 according to the invention, which has a housing 11, usually made of plastic, in which several clamping springs 12 are arranged. The embodiment of the electrical connection terminal 10 shown in the figures serves to connect five individual conductors, so that a total of five clamping springs 12 are arranged in the housing 11. The individual clamping springs 12, of which in Fig.5 one can be seen in the cross-sectional view of the connection terminal 10, each have a clamping leg 13 and a contact leg 14.

Jeder Klemmfeder 12 ist ein Steckkontakt 1 derart zugeordnet, dass der Anschlussbereich 6 eines Steckkontakts 1 zusammen mit dem freien Ende des Klemmschenkels 13 einer Klemmfeder 12 einen Federkraftklemmanschluss für einen durch eine Leitereinführungsöffnung 15 in das Gehäuse 11 eingeführten elektrischen Leiter bildet. Da die Anschlussklemme 10 zum Anschluss von fünf Leitern vorgesehen ist, sind in dem Gehäuse 11 entsprechend auch fünf Leitereinführungsöffnungen 15 und fünf Betätigungsöffnungen 16 zum Öffnen jeweils eines Federkraftklemmanschlusses ausgebildet. Insbesondere aus der Darstellung der Anschlussklemme 10 von schräg unten gemäß Fig. 4b ist ersichtlich, dass die einzelnen Kontaktschenkel 4, 5 mit ihren zweiten Bereichen 4b, 5b und insbesondere den freien Enden 4c, 5c aus der Unterseite 17 des Gehäuses 11 herausragen, sodass die einzelnen freien Enden 4c, 5c der Kontaktschenkel 4, 5 in korrespondierende Kontaktlöcher 3 in einer Leiterplatte eingreifen, wenn die elektrische Anschlussklemme 10 auf die Leiterplatte 2 aufgesetzt wird.Each clamping spring 12 is assigned a plug contact 1 in such a way that the connection area 6 of a plug contact 1 together with the free end of the clamping leg 13 of a clamping spring 12 forms a spring clamp connection for an electrical conductor introduced into the housing 11 through a conductor insertion opening 15. Since the connection terminal 10 is intended for the connection of five conductors, five conductor insertion openings 15 and five actuation openings 16 for opening a spring clamp connection are also formed in the housing 11. In particular, from the illustration of the connection terminal 10 from below at an angle according to Fig. 4b it can be seen that the individual contact legs 4, 5 with their second regions 4b, 5b and in particular the free ends 4c, 5c protrude from the underside 17 of the housing 11, so that the individual free ends 4c, 5c of the contact legs 4, 5 engage in corresponding contact holes 3 in a circuit board when the electrical connection terminal 10 is placed on the circuit board 2.

Dadurch, dass bei den Steckkontakten 1 die Kontaktschenkel 4, 5 jeweils L-förmig abgebogen sind, wobei die ersten Bereiche 4a, 5a parallel zur Ebene der Leiterplatte 2 verlaufen, weist die elektrische Anschlussklemme 10 eine reduzierte Höhe auf. Wie aus der Darstellung gemäß Fig. 4b ersichtlich ist, sind benachbarte Steckkontakte 1 jeweils um 180° versetzt zueinander angeordnet, wodurch ein größerer Abstand zwischen den freien Enden 4c, 5c benachbarter Steckkontakte 1 erzielt wird, ohne dass die Breite der Anschlussklemme 10 erhöht ist. Die Anschlussklemme 10 kann dadurch insgesamt sehr geringe Abmessungen aufweisen.Because the contact legs 4, 5 of the plug contacts 1 are each bent in an L shape, with the first areas 4a, 5a running parallel to the plane of the circuit board 2, the electrical connection terminal 10 has a reduced height. As can be seen from the illustration according to Fig. 4b As can be seen, adjacent plug contacts 1 are each arranged offset by 180° from one another, whereby a larger distance is achieved between the free ends 4c, 5c of adjacent plug contacts 1 without the width of the connection terminal 10. The connection terminal 10 can therefore have very small dimensions overall.

Zur Gewährleistung eines guten elektrischen Kontakts zwischen einem angeschlossenen elektrischen Leiter und dem Anschlussbereich 6 eines Steckkontakts 1 sind auf der dem Klemmschenkel 13 zugewandten Seite des Anschlussbereiches 6 mehrere Rillen 18 ausgebildet, wodurch die Flächenpressung zwischen einem eingesteckten und vom Ende des Klemmschenkels 13 gegen den Anschlussbereich 6 gedrückten Leiters und dem Anschlussbereich 6 erhöht wird.To ensure good electrical contact between a connected electrical conductor and the connection area 6 of a plug contact 1, a plurality of grooves 18 are formed on the side of the connection area 6 facing the clamping leg 13, whereby the surface pressure between an inserted conductor pressed against the connection area 6 by the end of the clamping leg 13 and the connection area 6 is increased.

Zur Befestigung des Gehäuses 11 der elektrischen Anschlussklemme 10 auf einer Leiterplatte 2 sind an der Unterseite 17 des Gehäuses mehrere versetzt zueinander angeordnete Justierelemente 19 sowie an den beiden Stirnseiten des Gehäuses 11 zwei Rastelemente 20 ausgebildet, die jeweils über die Unterseite 17 des Gehäuses 11 hinausragen und in korrespondierende Ausnehmungen in einer Leiterplatte 2 eingesteckt werden können. Zur Herstellung der Verrastung in den entsprechenden Ausnehmungen in der Leiterplatte weisen die beiden Rastelemente 20 jeweils zwei einander gegenüberliegende Rastnasen 21 auf. Ein zwischen den gegenüberliegenden Rastnasen 21 angeordneter, in Längsrichtung des Rastelements 20 verschiebbar ausgebildeter Verriegelungsstift 22 verhindert dabei ein ungewolltes Zurückfedern der Rastnasen 21, wenn sich der Verriegelungsstift 22 in der in Fig. 4b gezeigten Verriegelungsstellung zwischen den beiden Rastnasen 21 befindet.To secure the housing 11 of the electrical connection terminal 10 to a circuit board 2, several adjustment elements 19 arranged offset from one another are formed on the underside 17 of the housing and two locking elements 20 are formed on the two front sides of the housing 11, each of which protrudes beyond the underside 17 of the housing 11 and can be inserted into corresponding recesses in a circuit board 2. To ensure locking in the corresponding recesses in the circuit board, the two locking elements 20 each have two locking lugs 21 lying opposite one another. A locking pin 22 arranged between the opposing locking lugs 21 and designed to be displaceable in the longitudinal direction of the locking element 20 prevents the locking lugs 21 from springing back unintentionally when the locking pin 22 is in the position shown in Fig. 4b shown locking position between the two locking lugs 21.

Um die Klemmstelle zwischen dem freien Ende des Klemmschenkel 13 der Klemmfeder 12 und dem gegenüberliegenden Anschlussbereich 6 eines Stecckontakts 1 einfach öffnen zu können, ist in den Betätigungsöffnungen 16 jeweils ein Betätigungsdrücker 23 verschiebbar angeordnet. Ist der Betätigungsdrücker 23 in die Betätigungsöffnung 16 des Gehäuses 11 eingedrückt, so lenkt der Betätigungsdrücker 23 den Klemmschenkel 13 der Klemmfeder 12 entgegen deren Federkraft aus, so dass ein angeschlossener Leiter aus der Klemmstelle herausgezogen oder ein flexibler Leiter in die Klemmstelle eingeführt werden kann.In order to be able to easily open the clamping point between the free end of the clamping leg 13 of the clamping spring 12 and the opposite connection area 6 of a plug contact 1, an actuating pushbutton 23 is arranged in a movable manner in each of the actuating openings 16. If the actuating pushbutton 23 is pressed into the actuating opening 16 of the housing 11, the actuating pushbutton 23 deflects the clamping leg 13 of the clamping spring 12 against its spring force, so that a connected conductor can be pulled out of the clamping point or a flexible conductor can be inserted into the clamping point.

Claims (10)

  1. Plug-in contact (1) for making electrical contact with a circuit board (2) by means of plugging the plug-in contact (1) into a contact hole (3) of the circuit board (2), with two contact legs (4, 5) which are resilient relative to one another, one terminal region (6) and one connecting region (7) which connects the two contact legs (4, 5) to one another and to the terminal region (6), the plug-in contact (1) being punched out of a metallic flat material in one piece,
    characterized in
    that the two contact legs (4, 5) each have a first region (4a, 5a) and a second region (4b, 5b) which are arranged at an angle α to one another so that the two contact legs (4, 5) are bent approximately in an L-shape,
    wherein the two first regions (4a, 5a) adjoining the connecting region (7) and the ends of the two second regions (4b, 5b) form the free ends (4c, 5c) of the contact legs (4, 5),
    wherein the first region (4a, 5a) of the contact legs (4, 5) run approximately parallel to the plane of the circuit board, while the second region (4b, 5b) of the contact legs (4, 5) with the free ends (4c, 5c) run essentially perpendicular to the plane of the circuit board.
  2. Plug-in contact (1) according to claim 1, characterized in that the terminal region (6) and the second regions (4b, 5b) of the two contact legs (4, 5) run essentially parallel to one another.
  3. Plug-in contact (1) according to claim 1 or 2, characterized in that the two contact legs (4, 5) have different lengths, wherein a guide section (8) is formed on the free end (4c) of the longer contact leg (4) arranged in the plug-in direction (E) of the plug-in contact (1) upstream of the free end (5c) of the shorter contact leg (5).
  4. Plug-in contact (1) according to any one of claims 1 to 3, characterized in that the two contact legs (4, 5) have an outside contour which is rounded in cross section at least in their contact-making region (4d, 5d) which makes contact with the contact hole (3) in the plugged-in state.
  5. Plug-in contact (1) according to any one of claims 1 to 4, characterized in that the two contact legs (4, 5) have a rippled outside contour which extends in the longitudinal direction.
  6. Electrical terminal (10) with a housing (11), with a spring clip (12) and with a busbar piece, wherein the spring clip (12) has a clamping leg (13) and a contact leg (14) and the clamping leg (13) with the busbar piece form a spring force clamp terminal for an electrical conductor which is to be connected, and wherein a conductor insertion opening (15) for inserting the electrical conductor to be connected and an actuation opening (16) for opening the spring force clamp terminal are formed in the housing (11),
    characterized in
    that a plug-in contact (1) according to any one of claims 1 to 5 is arranged in the housing (11) such that the busbar piece is formed by the terminal region (6) of the plug-in contact (1) and the contact legs (4, 5) with their second regions (4b, 5b) protrude from the bottom (17) of the housing (11) facing the circuit board (2).
  7. Electrical terminal according to claim 6, characterized in that several grooves (18) or notches are formed on the side of the connecting region (6) of the plug-in contact (1) facing the clamping leg (13).
  8. Electrical terminal according to claim 6 or 7, characterized in that several adjusting elements (19) for plugging into corresponding recesses in a circuit board (2) are formed on the bottom (17) of the housing (11).
  9. Electrical terminal according to any one of claims 6 to 8, characterized in that several locking elements (20) for plugging into corresponding recesses in a circuit board (2)are formed on the bottom (17) of the housing (11).
  10. Electrical terminal according to any one of claims 6 to 9, characterized in that an actuating pusher (23) is arranged in the actuation opening (16) such that it can be moved from a first position in which the spring force clamp terminal is closed into a second position in which the actuating pusher (23) deflects the clamping leg (13) against the spring force of the spring clip (12) with its end facing the clamping leg (13) so that the spring force clamp terminal is opened.
EP16793929.7A 2015-11-11 2016-11-10 Plug contact Active EP3375048B1 (en)

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DE102015119484.8A DE102015119484A1 (en) 2015-11-11 2015-11-11 plug contact
PCT/EP2016/077340 WO2017081197A1 (en) 2015-11-11 2016-11-10 Plug contact

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JP (1) JP6685394B2 (en)
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EP3375048A1 (en) 2018-09-19
CN108352636A (en) 2018-07-31
CA3004953C (en) 2020-08-25
CA3004953A1 (en) 2017-05-18
JP2018534745A (en) 2018-11-22
DE102015119484A1 (en) 2017-05-11
US20180351271A1 (en) 2018-12-06
CN108352636B (en) 2020-10-23
US10665970B2 (en) 2020-05-26
JP6685394B2 (en) 2020-04-22
WO2017081197A1 (en) 2017-05-18

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