JP2009040590A - Elevator floor indicator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily remodel a floor indicator of the incandescent lamp display system into a floor indicator of the LED display system. <P>SOLUTION: An elevator floor indicator 30 for performing the segment indication of a floor on which a car 32 is presently located comprises a box-shaped cover 3 having a segment window 2 with a shape of each segment constituting a display character with a back side being opened, a substrate 9 which receives the display signal from the back side, has a connection pin 8 for conduction at each position opposite to each segment window on its inner surface, and is attached to an opening in the back side of the box-shaped cover, and a plurality of LED display units 34 which are attachably/detachably provided on each connection pin 8 of the substrate via a rubber terminal body 35 for an incandescent lamp, provided with an LED element 39 therein, and opposite to the segment window 2 while being attached to the connection pins 8. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator floor display device that is installed in an elevator hall or a car on each floor in an elevator system and displays a floor on which a car currently moving up and down in a hoistway is segmented. The present invention relates to an elevator floor display device that can be easily modified from a lamp display floor display device to an LED display method.

  A floor display device that displays the current position (current floor) of the car moving up and down in the hoistway is installed in the wall near the door of the elevator hall on each floor in the elevator system and in the elevator car. ing.

  FIG. 10 is an external view of the floor display device 1, and FIG. 11 is an exploded perspective view of the floor display device 1. As shown in FIG. 11, the floor display device 1 is roughly divided into a box-type cover 3 having segment windows 2 each having the shape of each segment constituting display characters on the front surface, and characters displayed in segments. Each position facing the segment window 2 on the inner surface is connected to the color filter 4 that determines the display color, the light partition 5, the seven incandescent lamps 6 corresponding to the seven segments, and the display signal line 7 on the back surface. The board 9 is provided with a connection pin 8 for energization, and the box cover 3, the color filter 4, the light partition 5, and the fixing pin 10 that connects the board 9.

  FIG. 12 is a view showing each incandescent lamp 6 that is detachably attached to each connection pin 8 of the substrate 9. 12A is a side view, FIG. 12B is a front view, FIG. 12C is an elevation view, and FIG. 12D is a circuit diagram. In this incandescent lamp 6, a glass ball 13 in which a filament 14 is accommodated is fixed to a rubber terminal body 11 attached to a connection pin 8, and the contact 12 connected to the filament 14 is connected to the connection pin 8 at the time of attachment. To touch. Accordingly, when the incandescent lamp 6 is attached to the connection pin 8 and the connection pin 8 to which the corresponding incandescent lamp 6 is attached is energized from the display signal line 7, the incandescent lamp 6 is turned on.

  In order to prevent the light from each of the seven incandescent lamps 6 from leaking into the segment windows 2 of the other incandescent lamps 6 other than its own segment window 2, the light partition 5 is provided for each incandescent lamp 6. An optical duct for the window 2 is formed. Such a floor display device 1 is driven by, for example, AC 24 V (volts).

  However, since the incandescent lamp 6 has a short life and a high failure rate, the current position (current floor) of the displayed car suddenly disappears, causing great inconvenience to the elevator user. The potential is great.

  In order to solve such problems, Patent Document 1 proposes a floor display device in which the floor display device 1 adopting the existing incandescent lamp display method shown in FIGS. 10 to 12 is modified to an LED display method. ing.

  In this floor display device 15, as shown in FIG. 13, the light partition 5 and the seven incandescent lamps 6 in the floor display device 1 of FIG. 11 are replaced with LED display composite units 16. FIG. 14A is a cross-sectional view of the LED display composite unit 16. In the LED display composite unit 16, an LED board 19 shown in FIG. 14B on which LED elements 18 are mounted in accordance with the segment display windows 14, and an LED drive circuit 24 for each segment shown in FIG. A full-wave rectifying diode bridge circuit 20 and a resistor substrate 22 on which a pair of current limiting resistors 21 are mounted are incorporated. In this floor display device 15, three LED elements 18 are disposed in each segment.

  On the back surface of the resistance substrate 22, seven rubber terminal bodies 23 that can be attached to the seven connection pins 8 attached to the substrate 9 of FIG. 13 are attached. An LED drive circuit 24 for each segment shown in FIG. 15 is connected to the rubber terminal body 23. The LED substrate 19 and the resistor substrate 22 are connected by lead pins 25.

  In the floor display device 15 modified to such an LED display system, when the connection pin 8 is energized from the display signal line 7, the segment shown in FIG. 15 connected to the rubber terminal body 23 attached to the connection pin 8. An AC voltage is applied to the unit LED drive circuit 24. The AC voltage is converted to DC by the diode bridge circuit 20 in a state where the maximum current value is limited by the current limiting resistor 21 and then supplied to the three LED elements 18 arranged in the display window 14 of the segment. The As a result, the corresponding segment is lit with an LED.

In this manner, the floor display device 1 employing the conventional incandescent lamp 6 can be simply modified to the floor display device 15 employing the LED display method.
JP 2000-276069 A

  However, the floor display device 15 shown in FIGS. 13 to 15 still has the following problems to be solved.

  That is, it is necessary to remove each incandescent lamp 6 and the light divider 5 in the floor display device 1 before remodeling from the floor display device 1 and then attach the LED display composite unit 16. Therefore, the remodeling work time becomes long, which causes great inconvenience to the elevator user, resulting in a decrease in service for the elevator user. Furthermore, the work burden on the operator who performs the modification increases.

  In addition, after the remodeling, when the brightness of the LED element 18 of a specific segment among the seven segments decreases, the LED substrate 19 on which all the LED elements 18 are mounted in a total of 21 of the seven segments is replaced. Because it was necessary to do, maintenance work was a lot of work. In addition, although the method of replacing | exchanging the LED display composite unit 16 whole can be considered, in this case, the problem that replacement parts expense increases arises.

  The present invention has been made in view of such circumstances, and the floor display device main body adopting a conventional incandescent lamp is not remodeled at all, and at the time of failure such as filament cutting of each conventional incandescent lamp, The display method can be modified from the incandescent lamp display method to the LED display method in the same work as replacing the incandescent lamp, and the time required for the modification can be greatly reduced. In addition, the LED display unit is replaced for each segment. An object of the present invention is to provide an elevator floor display device that can facilitate maintenance after remodeling.

In order to solve the above-described problems, the present invention provides an elevator floor display device for segmentally displaying the elevator platform of each floor and the floor where the car is currently located,
A segment window having the shape of each segment that constitutes display characters is formed on the front, a box-type cover with an open back, and a display signal is input from the back, and energized at each position facing each segment window on the inner surface Connection pins are provided, and the board mounted in the opening on the back of the box-type cover, and each connection pin of the board are detachably provided via a rubber terminal body for incandescent lamps, and the LED element is incorporated inside And a plurality of LED display units facing the segment window in a state of being attached to the connection pins.

  In the elevator floor display device configured as described above, an LED display unit in which an LED element is incorporated is mounted instead of an incandescent lamp on a connection pin for energization provided on the inner surface of the substrate. Only need. Therefore, the incandescent lamp display method can be easily modified from the LED display method. Further, since the LED display unit is provided for each segment, the LED display unit can be replaced for each segment, so that maintenance after modification can be facilitated.

  In another invention, the LED display unit of the elevator floor display device of the above invention is input via a rubber terminal body attached to a connection pin attached to the substrate, the connection pin and the rubber terminal body. A rectifier composed of a diode bridge circuit that rectifies the drive power, a pair of current limiting resistors interposed between the rubber terminal body and the rectifier, an LED element that emits direct current rectified by the rectifier, and an LED element A diffusion lens that diffuses the emitted light and a unit case that covers a part of the rubber terminal body, a pair of current limiting resistors, a rectifier, an LED element, and the diffusion lens are provided.

  In general, the LED element is driven by a small current, a small power, and always a direct current as compared with an incandescent lamp in which a filament is incorporated. Therefore, in each LED display unit, in addition to the LED element, A rectifier and a current limiting resistor are incorporated. Furthermore, a diffusing lens for diffusing the light of the LED element to a full segment is incorporated.

  Moreover, in another invention, each diode of the diode bridge circuit which comprises the rectifier built in the LED display unit of the elevator floor display apparatus of the said invention is comprised with the LED element. The diffusion lens diffuses the light emitted from the LED elements connected to the diode bridge circuit constituted by the LED elements and the light emitted from the LED elements of the diode bridge circuit.

  Thus, by adopting the LED element as the rectifying diode, the amount of light output from the LED display unit can be increased.

  Moreover, in another invention, the diode bridge circuit and LED element which comprise the rectifier incorporated in the LED display unit of the elevator floor display apparatus of the said invention are integrated in one semiconductor element. By doing in this way, an LED display unit can be reduced in size to the same extent as the conventional incandescent lamp.

  In the present invention, it is only necessary to attach an LED display unit in which an LED element is incorporated in place of the incandescent lamp to the connection pin for energization provided on the inner surface of the substrate. Therefore, the incandescent lamp display method can be easily modified from the LED display method. In addition, since the LED display unit can be replaced for each segment, maintenance after modification can be facilitated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1A, an elevator floor display device 30 according to the first embodiment of the present invention includes a wall surface in the vicinity of an elevator hall door 31 on each floor in an elevator system, and a door 33 in an elevator car 32. It is attached to the upper wall surface.

  2 is an external view showing a state in which the floor display device 30 of the first embodiment is removed from the wall surface, and FIG. 3 is an exploded perspective view of the floor display device 30 of the same embodiment. The same parts as those of the conventional (before remodeling) floor display device 1 shown in FIGS. 10 and 11 are denoted by the same reference numerals, and detailed description of the overlapping parts is omitted.

  The floor display device 30 according to the first embodiment is roughly divided into a box-type cover 3 in which segment windows 2 having the shape of each segment constituting display characters are formed on the front surface, and display of characters displayed in segments. Color filter 4 for determining color, light partition 5, seven LED display units 34 corresponding to seven segments, display signal lines 7 on the back surface, and positions facing the segment windows 2 on the inner surface The board 9 is provided with a connection pin 8 for energization, and the box cover 3, the color filter 4, the light partition 5, and the fixing pin 10 that connects the board 9.

  The light partition 5 is provided for each LED display unit 34 in order to prevent light from each of the seven LED display units 34 from leaking into the segment windows 2 of other LED display units 34 other than its own segment window 2. An optical duct for its own segment window 2 is formed. Since the size and shape of the LED display unit 34 are almost the same as the incandescent lamp 6 shown in FIG. 12 used in the conventional apparatus, the light partition 5 uses the light partition 5 of the conventional apparatus as it is. Yes.

  In other words, the floor display device 30 according to the embodiment is simply obtained by replacing the seven incandescent lamps 6 in the conventional (before remodeling) floor display device 1 with seven LED display units 34.

  FIG. 4 is a view showing each LED display unit 34 detachably provided to each connection pin 8 of the substrate 9. 4A is a side view, FIG. 4B is a front view, and FIG. 4C is an elevation view. FIG. 5 is an internal configuration diagram of the LED display unit 34, and FIG. 6 shows an LED drive circuit 38.

  In the LED display unit 34, a cylindrical resin case 36 is attached to a rubber terminal body 35 attached to the connection pin 8, and a transparent lens cover 37 is fixed to the upper end opening of the resin case 36. Accordingly, the resin case 36 and the lens cover 37 constitute a unit cover.

  In the lens cover 37, a silicon wafer 41 is disposed as a semiconductor element on which two LED elements 39 of the LED drive circuit 38 shown in FIG. 6 and four diodes 40 of a diode bridge circuit constituting a rectifier are mounted. ing. And the diffusion lens 42 is accommodated above it.

  The rectifier formed on the silicon wafer 41 is connected to each contact 45 of the rubber terminal body 35 through a pair of current limiting resistors 43 and lead wires 44 housed in the resin case 36.

  Similarly to the resin case 36, the rubber terminal body 35 accommodates each current limiting resistor 43 and electrically connects the connection pin 8 and the contact 45 by inserting the connection pin 8 of the substrate 9. Can do. The lens cover 37, the resin case 36, and the rubber terminal body 35 are connected to the side of the rubber terminal body 35 by using the lead wire 44 of the current limiting resistor 43 and attaching the rubber terminal body 35 to the connection pin 8 of the substrate 9. Each case is fixed by bending the lead wire 44 exposed to.

  The insertion portion of the connection pin 8 of the substrate 9 of the rubber terminal body 35 has a shape as shown in FIG. 5, and by making this insertion portion a hole slightly smaller than the connection pin 8, the expansion and contraction of rubber is used. Thus, the LED display unit 34 can be fixed to the connection pin 8. Therefore, when the rubber terminal body 35 is attached to the connection pin 8, the connection pin 8 is electrically connected to the current limiting resistor 43 via the contact 45 and the lead wire 44.

  When, for example, a specific connection pin 8 is energized from the display signal line 7, an AC voltage is applied to one LED display unit 34 shown in FIGS. 4 and 5 attached to the connection pin 8 and corresponding to the corresponding segment. It will be done. This AC voltage is supplied to the two LED elements 39 after being converted into DC by the diode bridge circuit in a state where the maximum current value is limited by the current limiting resistor 43. As a result, the two LED elements 39 emit light, and the light is once diffused by the diffusion lens 42 and then condensed by the light partition 5 on the corresponding segment window 2 of the box-shaped case 3. As a result, the corresponding segment is lit with an LED.

  In the floor display device 30 modified to the LED display system of the elevator according to the first embodiment configured as described above, the incandescent lamp 6 is connected to the connection pin 8 for energization provided on the inner surface of the substrate 9. It is possible to easily change from the incandescent lamp display method to the LED display method simply by mounting the LED display unit 34 in which the LED element 39 is incorporated.

  Moreover, since the LED display unit 34 is provided for each segment, the LED display unit 34 can be replaced for each segment. Therefore, when the LED display unit 34 having a defective display is generated, the conventional procedure for replacing the incandescent lamp 6 is performed. The LED display unit 34 may be replaced in the same manner. Therefore, the maintenance after remodeling can be facilitated.

  Further, a diode bridge circuit constituting a rectifier is incorporated in the LED display unit 34 of this embodiment. Therefore, the input signal from the display signal line 7 can be alternating current or direct current, and in the case of alternating current, it is rectified to direct current by a rectifier and supplied to the LED element 39.

  When the input signal is a direct current, the diode bridge circuit constituting the rectifier can prevent the LED element 39 from being damaged even if the polarity of the input signal is incorrect (+) or (−).

(Second Embodiment)
FIG. 7 is an LED drive circuit diagram 38a of each electronic component incorporated in the LED display unit 34a in the elevator floor display device according to the second embodiment of the present invention. The same parts as those in the LED drive circuit diagram 38 of each electronic component incorporated in the LED display unit 34a of the first embodiment shown in FIG. 6 are denoted by the same reference numerals, and detailed description of the overlapping parts is omitted.

  8A is a side view of the LED display unit 34a, and FIG. 8B is a diagram showing a part of the internal structure of the LED display unit 34a. The same parts as those in FIGS. 4 and 5 are denoted by the same reference numerals, and detailed description of the overlapping parts is omitted. Other configurations are the same as those of the first embodiment described above.

  Four diodes of a diode bridge circuit constituting a rectifier formed in the LED display unit 34 a of the second embodiment are constituted by LED (Light Emitting Diode) elements 47.

  Then, as shown in FIG. 8B, a diffusion lens 42 is provided above the four LED elements 47 and the original LED elements 39 of the diode bridge circuit forming the rectifier formed on the silicon wafer 41. It has been.

  In the LED display unit 34a configured as described above, the four LED elements 47 of the diode bridge circuit constituting the rectifier emit light when a current flows in the forward direction, so that the amount of light of the entire LED display unit 34a increases.

In addition, when each LED element 47 connected in a bridge rectifies an AC voltage, a reverse voltage is applied every 1/2 cycle, but the reverse voltage applied to one LED element 47 is:
(Rectifying LED element 47, 1 piece) + (LED element 39 dedicated to light emission, 1 piece)
When a current of about 1 mA is passed through the LED element 47, the voltage drop of the LED element 47 is generally 1.5V × 2 = 3V, but the reverse withstand voltage of the general LED element 47 is Since it is about 5V, the LED element 47 will not be damaged.

  As shown in FIG. 9, the LED display units 34 b are arranged in a horizontal row as shown in FIG. 9, and the segment windows 2 of the box-shaped case 3 are uniformly irradiated with light. You may comprise. In this case, the light partition 5 is not used.

The figure which shows the elevator hall and the cage | basket | car in which the floor display apparatus of the elevator concerning 1st Embodiment of this invention was attached. External view of the floor display device of the same embodiment Exploded perspective view of the floor display device of the same embodiment The figure which shows the LED display unit of the floor display apparatus of the embodiment The figure which shows the internal structure of the LED display unit of the floor display apparatus of the embodiment LED drive circuit diagram of LED display unit of floor display device of embodiment LED drive circuit diagram of LED display unit of elevator floor display device according to second embodiment of the present invention The figure which shows the LED display unit of the floor display apparatus of the embodiment The figure which shows the modification of the LED display unit of the floor display apparatus of the elevator of this invention External view of conventional floor display device (before modification) Exploded perspective view of the conventional floor display device (before remodeling) The figure which shows the incandescent lamp of the conventional floor display device (before remodeling) Disassembled perspective view of a conventional floor display device (after modification) The figure which shows the LED display compound unit of the same floor display (after modification) LED drive circuit diagram of the segment unit in the LED display composite unit of the conventional floor display device (after modification)

Explanation of symbols

  2 ... Segment window, 3 ... Box type case, 4 ... Color filter, 5 ... Light partition, 6 ... Incandescent lamp, 7 ... Display signal line, 8 ... Connection pin, 9 ... Substrate, 10 ... Fixed pin, 1,30 ... floor display device, 34, 34a, 34b ... LED display unit, 35 ... rubber terminal body, 36 ... resin case, 37 ... lens cover, 38 ... LED drive circuit, 39, 47 ... LED element, 40 ... diode, 41 ... Silicon wear, 42 ... Diffusion lens, 43 ... Current limiting resistor, 44 ... Lead wire, 45 ... Contact

Claims (4)

In the elevator floor display device for each floor, which is installed in the elevator hall and in the car and displays the floor where the car is currently located in a segment,
A box-shaped cover in which a segment window having the shape of each segment constituting display characters is formed on the front surface and the back surface is opened,
A display signal is input from the back surface, a connection pin for energization is provided at each position facing the segment windows on the inner surface, and a substrate attached to the opening on the back surface of the box-type cover;
A plurality of LEDs facing each of the segment windows in a state in which each connection pin of the substrate is detachably provided via a rubber terminal body for an incandescent lamp, an LED element is incorporated therein, and is mounted on the connection pin An elevator floor display device comprising a display unit. Each LED display unit is
A rubber terminal body attached to a connection pin attached to the substrate;
A rectifier comprising a diode bridge circuit for rectifying drive power input via the connection pin and the rubber terminal body;
A pair of current limiting resistors inserted between the rubber terminal body and the rectifier;
LED elements that emit light with direct current rectified by the rectifier,
A diffusion lens for diffusing the light emitted from the LED element;
The elevator floor display according to claim 1, further comprising a unit case that covers a part of the rubber terminal body, the pair of current limiting resistors, the rectifier, the LED element, and the diffusion lens. apparatus. Each diode of the diode bridge circuit constituting the rectifier is constituted by an LED element,
The diffusion lens diffuses light emitted from the LED element connected to a diode bridge circuit configured by the LED element and light emitted from each LED element of the diode bridge circuit. The elevator floor display device according to 2.   The elevator floor display device according to any one of claims 1 to 3, wherein the diode bridge circuit and the LED element constituting the rectifier are incorporated in one semiconductor element.

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