KR100562775B1 - Structure of housing for memory card connector - Google Patents

Abstract

The present invention relates to a housing structure of a memory card connector in which the locking and unlocking is performed by a push-push mechanism when the memory card is mounted in the card slot of the housing. Rotating, the sliding heart cam is installed to lock the memory card by rotating the memory card is inserted as the memory card is inserted into the rear of the sliding heart cam is provided with an elastic spring for pressing the sliding heart cam, the upper side of the sliding heart cam In the memory card connector which is fixed to the heart cam support wall and provided with a pin rod, the other side of which contacts the sliding heart cam and is circumferentially formed, the bottom of the engaging portion is formed with a guide groove recessed in the longitudinal direction of the sliding heart cam. On the bottom of the housing facing the groove, a groove corresponding to the guide groove The guide rail is formed in the longitudinal direction to guide the sliding heart cam forward and rearward, and in the center of the guide rail is formed to prevent the separation prevention projection in the longitudinal direction of the housing can more securely fix the memory card have.

Memory Card Connector, Housing, Sliding Heart Cam, Pin Rod, Elastic Spring, Cover Shell

Description

Housing structure of memory card connector {Structure of housing for memory card connector}

1 is an exploded perspective view of a conventional memory card connector.

FIG. 2 is a view illustrating a structure of a pin rod by enlarging 'A' of FIG. 1; FIG.

3 is a partially enlarged view showing a heart cam of a conventional memory card connector.

Figure 4 is an exploded perspective view of the memory card connector according to the present invention.

5 is a partially perspective view of the memory card connector according to the present invention;

6 is a partially perspective view of the memory card connector shown at a different angle.

Figure 7a is a perspective view of a sliding heart cam according to the present invention.

Figure 7b is a perspective view of the sliding heart cam according to the present invention from another angle.

Figure 8 is a view showing the guide groove of the sliding heart cam according to the present invention

Figure 9a is a view showing a state in which the sliding heart cam is rotated from the front in accordance with the present invention.

Figure 9b is a view showing a sliding heart cam locking the memory card according to the present invention.

Figure 9c is a view showing a state in which the sliding heart cam according to the present invention is moved backward with the memory card is fixed.

** Description of symbols for the main parts of the drawing **

100: memory card connector 102: memory card

110 housing 119 heart cam support wall

119a: release prevention jaw 119b: pin insertion hole

119c: slope 119d: lift bump

124: fixed protrusion 126: guide rail

128: departure preventing protrusion 130: connection terminal

137: chamfer 140: sliding heart cam

142: body portion 142a: spring hook projection

142b: semicircular protrusion 142c: protrusion protrusion

144: engaging portion 144a: inclined surface

144b: guide groove 146: locking portion

150: elastic spring 160: pin rod

170: cover cell 174: fixing part

176: fitting nail 176a: chamfer

178: pin rod support piece 179: elastic support

The present invention relates to a memory card connector, and more particularly, to a memory card connector in which locking and unlocking are performed by a push-push mechanism when a memory card, which is a next-generation memory semiconductor, is mounted in a card slot of a housing.

In general, with the spread of portable digital devices such as digital cameras, digital camcorders, and MP3 players, demand for memory cards, which are removable storage devices, is rapidly increasing. Such a memory card is a portable storage device of a flash memory series, and is electrically connected to a digital device through a memory card connector.

On the other hand, the memory card connector to which such a memory card is mounted is a mechanism for locking the memory card to the insertion position by pressing the memory card once, and then pressing the second time to release the locking to move the card to the eject position. A heart cam mechanism is included to facilitate the removal of the memory card.

1 is an exploded perspective view of a conventional memory card connector, FIG. 2 is a view showing a structure of a pin rod of a conventional memory card connector, and FIG. 3 is a view showing a heart cam of a conventional memory card connector.

As shown in FIG. 1, the conventional memory card connector 10 locks a housing 20 in which the memory card 12 is mounted and a memory card 12 installed and inserted in one side of the housing 20. In addition, the slide member 30 is moved backward and fixed together with the memory card 12, the elastic spring 40 for pressing the slide member 30 in the rear of the slide member 30, the slide member 30 It is formed on the installation side housing 20 and comprises a heart cam 50 for fixing and releasing the slide, and a cover shell 60 covering the upper portion of the housing 20.

Here, the slide member 30 is moved to the front and rear with the memory card 12 by locking the memory card 12 to be inserted, the system formed to project vertically in the direction of the card slot 22 in the lower right The engaging portion 32 is engaged with the front end of the memory card 12, and an elastic piece 34 provided at the right center is inserted into the locking groove 16 of the memory card 12 to lock the memory card 12. do. In addition, the upper end is provided with a pin rod 36 bent downward.

As shown in FIG. 2, one end 36a of the pin rod 36 is inserted into an insertion hole 38 formed through the upper portion of the slide member 30 to form a center of rotation, and the other end 36b is hereinafter referred to as a pin portion. ) Is exposed to the opening 39 formed in the center of the slide member 30 abuts on the bottom surface of the heart cam (50). At this time, the pin rod 36 is prevented from being separated by the pin rod support piece 37 having an elastic force formed on the slide member 30.

On the other hand, the heart cam 50 is a means for fixing and releasing the slide member 30, as shown in Figure 3, the heart-shaped guide groove 52 is formed. The guide groove 52 is divided into a first section 54a, a second section 54b, a third section 54c, and a fourth section 54d having different depths, and each section 54a, 54b, 54c. The first step 56a, the second step 56b, the third step 56c, and the fourth step 56d are respectively formed between and 54d. Each step 56a, 56b, 56c, and 56d is formed by the depth difference between the first section 54a to the fourth section 54d, and the pin portion of the pin rod 36 contacting the guide groove 52. 36b) is capable of turning only clockwise and prevents movement in the reverse direction.

On the other hand, in the front partition wall forming the third section 54c, a stop recess 58 recessed in a round shape is formed so that the pin portion 36b is accommodated and fixed.

In the conventional memory card connector 10 configured as described above, when the memory card 12 is pushed in and engaged with the slide member 30, the slide member 30 moves backward together with the memory card 12. The pin portion 36b moves to the second section along the first section.

Here, the pin rod 36 is installed on the slide member 30, the moving direction of the slide member 30 and the moving direction of the pin portion 36b is the same. That is, when the slide member 30 moves backward, the pin portion 36b moves to the rear partition wall of the second section 54b.

When the force for pressing the memory card 12 in this state is released, the slide member 30 tries to move forward by the elastic restoring force of the elastic spring 40 installed at the rear end, but the pin portion 36b is moved to the third section 54c. ) Is accommodated in the stop recess 58, whereby forward movement is prevented. That is, the sliding member 30 is fixed to the rear, and the memory card 12 locked to the sliding member 30 is also electrically connected to the connection terminal 24 at the rear of the card slot 22 to the printed circuit board You will be able to send and receive information (not shown).

When the memory card 12 is to be taken out, when the memory card 12 is pressed again, the slide member 30 moves backward, and the pin portion 36b is relatively rear partition of the fourth section 54d. Will go to. At this time, when the force for pressing the memory card 12 is released, the slide member 30 is moved forward by the elastic restoring force of the elastic spring 40, and the pin portion 36b is formed along the fourth section 54d. It is moved to one section 54a.

As described above, the memory card 12 is locked to the slide member 30 by the push operation and moved backward, and the card slot of the housing 20 by the fixing of the slide member 30 by the heart cam 50. 22). On the other hand, if the push operation is performed again, the slide member 30 fixed to the rear side is released to move forward, and the memory card 12 is also moved forward to move out together.

However, in the conventional memory card connector 10, when the slide member 30 moves forward and backward, as the pin rod 36 contacts the heart cam 50 and moves, the memory card connector 10 shakes much to the left and right. 12 has a problem that the connection terminal 24 can not be stably connected.

In addition, since the elastic piece 34 of the slide member 30 that locks the memory card 12 escapes from the locking groove 16 of the memory card 12 even in a small impact, the memory card 12 is connected to the memory card connector ( 10) had a problem that is easily separated.

The present invention was devised to solve the above problems, and an object of the present invention is to form a sliding heart cam integrated with a slide and a heart cam, and by rotating the sliding heart cam, the memory card is more stably. It is to provide a memory card connector that can be locked.

Another object of the present invention is to provide a memory card connector in which the memory card and the connection terminal are stably connected by guiding the movement and not moving to the left and right sides when the sliding heart cam moves forward and backward. .

The present invention configured to achieve the above object is as follows. That is, the housing structure of the memory card connector according to the present invention is a housing on which the memory card is mounted, and is installed at one side of the housing, and has a body portion with a heart-shaped guide groove formed thereon and a protrusion formed at the rear end of the body portion to form a memory. A sliding heart cam having a locking portion for locking a memory card on one side of the engaging portion and the body portion engaged with the card, a heart cam supporting wall protruding from the bottom of the housing above the sliding heart cam to induce rotation of the sliding heart cam, An elastic spring is installed at the rear of the sliding heart cam to press the sliding heart cam forward, one side is fixed to the support wall of the heart cam, the other side is in contact with the guide groove to pin the rod to fix and release the sliding heart cam And a cover shell which covers the upper part of the housing to support the pin rod. At the bottom of the engaging portion, a guide groove recessed in the longitudinal direction of the sliding heart cam is formed, and on the bottom of the housing facing the guide groove, the guide rail is formed to protrude in the longitudinal direction to a size corresponding to the guide groove and the sliding heart cam is formed. Guides the front and rear, and in the center of the guide rail, a separation prevention protrusion protrudes in the longitudinal direction of the guide rail so that the engaging portion is caught during rotation of the sliding heart cam, thereby preventing the sliding heart cam from being separated. do.

Hereinafter, a memory card connector according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is an exploded perspective view of the memory card connector according to the present invention, FIG. 5 is a partially assembled perspective view of the memory card connector according to the present invention, and FIG. 6 is a partially assembled perspective view of the memory card connector shown from another angle.

As shown in Figs. 4 to 6, the memory card connector 100 of the present invention includes a connector housing 110 having a card slot 112 into which the memory card 102 is inserted, Sliding heart cam 140 is installed on one side, is engaged with the memory card 102 inserted into the card slot 112, the pressure movement is supported freely, the rear of the sliding heart cam 140 is installed in the memory card ( 102) the elastic spring 150 for applying the elastic restoring force in the discharge direction, one side is fixed and supported by the housing 110, the other side is in contact with the sliding heart cam 140 to rotate to fix and move the sliding heart cam 140 It includes a pin rod 160 and a cover shell 170 covering the upper portion of the housing 110 to support the pin rod 160.

First, the memory card 102 is a flash memory-based portable storage device. The memory card 102 is electrically connected to a printed circuit board (not shown) of a digital device through the memory card connector 100. 104 is exposed and is connected to the connection terminal 130 provided at the rear end of the memory card connector 100. In addition, an inclined surface 105 is formed at one corner of the tip, and the locking portion of the sliding heart cam 140, which will be described later, is provided with a vertically recessed locking groove 106 in the rear side of the inclined surface 105. Locked by 146.

The housing 110 made of synthetic resin is fixed on the printed circuit board. The housing 110 has a bottom surface 114, a right side wall 115 formed at the right end of the bottom surface, and a terminal support wall formed at the rear end of the bottom surface. 116, a spring support wall 117, a left wall 118 and a heart cam support wall 119 formed at the left end of the bottom face. Here, the card slot 112 is formed by the bottom surface 114, the right side wall 115, the terminal support wall 116, the heart cam support wall 119, and the cover shell 170, the bottom surface 114, A sliding slot 113 is formed by the left wall 118, the spring support wall 117, the heart cam support wall 119, and the cover shell 170.

On the other hand, the housing 110 is provided between the card slot 112 and the sliding slot 113, the separation prevention projection 119a protruding in the longitudinal direction from the rear end of the heart cam support wall 119 is provided with a sliding heart cam 140 The card slot 112 is prevented from being separated, and an opening 120 cut out to be exposed to the outside is formed between the left wall 118 and the heart cam support wall 119 so that the sliding heart cam 140 is opened. It becomes rotatable outside of 120.

The spring support protrusion 117a protrudes into the sliding slot 113 in the spring support wall 117 to prevent the elastic spring 150 from being separated.

The heart cam support wall 119 has a circular pin part insertion hole 119b formed at the center of the rear part, and the pin part 160a of the pin rod 160 to be described later is inserted to form a rotation center. The rear end is formed with an inclined portion 119c protruding obliquely so that the sliding heart cam 140 abuts and rotates outward. In addition, the rear end portion of the housing 110, the lifting prevention jaw 119d protrudes in the longitudinal direction to prevent the sliding heart cam 140 from being lifted upward by the restoring force of the elastic spring 150.

Both side walls of the housing 110 are formed with a locking jaw 122 protruding inclined in a descending gradient so that the locking hole 172 of the cover shell 170 to be described later is caught by the locking jaw 122 while sliding. Semi-elliptic fixing protrusions 124 are formed on both side walls of the 110 so that the fixing parts 174 of the cover shell 170 to be described later slide and fit, thereby assembling the cover shell 170 to the housing 110. Minimize the movement between the housing 110 and the cover shell 170 by the assembly time tolerance.

The guide rail 126 protrudes in a direction parallel to the left wall 118 at the rear of the heart cam support wall 119 of the housing 110 to guide the sliding heart cam 140 moving forward and backward. In the center of the guide rail 126, the separation preventing protrusion 128 protrudes in the longitudinal direction of the guide rail 126 again.

Next, the elastic spring 150 is to return the sliding heart cam 140 to the front, one end is fitted to the above-described spring hook projection (117a) is supported on the spring support wall 117, the other end is the sliding It is mounted to the rear of the heart cam 140 to apply an elastic restoring force to the sliding heart cam 140 in the card ejection direction.

The pin rod 160 fixes and releases the sliding heart cam 140, and both ends of the horizontal stage are bent downward to form pin portions 160a and 160b, and the pin portions 160a of the tip end support the heart cam. It is inserted into the pin part insertion hole 119b of the wall 119 to form a center of rotation, and the rear end pin part 160b contacts the guide groove 143 of the sliding heart cam 140 to be described later, thereby sliding the sliding heart cam 140. ) Can be fixed and moved.

The cover shell 170 covers the upper portion of the housing 110 to prevent the memory card 102 inserted and mounted in the card slot 112 from being separated from the card slot 112, and the pin rod 160 described above. The cover shell 170 is supported on the sidewall of the housing 110 through a plurality of locking holes 172 formed in a rectangular shape on the sidewall to prevent the pin rod 160 from being separated. It is fixed to the upper housing 110 by the hook.

In addition, the cover shell 170 is formed on both side walls of the cover shell 170 so as to correspond to the fixing protrusion 124 of the housing 110 described above. Minimize mutual movements caused by assembly tolerances during assembly.

In addition, the lower portion of both side walls forming the fixing portion 174 is formed to be bent rounded so that the cover shell 170 is easily fitted while sliding on the upper portion of the fixing protrusion 124 when assembled to the upper portion of the housing 110. Be sure to

Both side walls of the cover shell 170 is fixed to the memory card connector 100 according to the present invention installed on the printed circuit board cover shell so as to prevent the bending of the connection terminal 130 by the flow of the memory card connector 100 A fitting nail 176 protruding horizontally in a plate shape is formed at both lower portions of the side walls of 170, and the pin rod support piece 178 bent downward is formed on the upper surface thereof and the elastic support part 179 formed in parallel in the longitudinal direction on the side wall. Is formed.

The elastic support 179 is to stop the rotation when the sliding heart cam 140 is rotated to move forward, cut a portion of the side wall of the cover shell 170 in a straight shape is formed in a rod shape, both sides It is integrally connected to the cover shell 170 to be elastically deformable. That is, when the sliding heart cam 140 rotates to the outside of the opening 120 described above, the elastic support 179 supports the body 142 to stop the rotation, and the memory card 102 is inserted into the sliding heart. When the cam 140 rotates to its original state, an elastic restoring force is applied to the body portion 102 to assist the rotation to the original position.

The pin rod support piece 178 presses and supports the pin rod 160 when the cover shell 170 is assembled to the upper portion of the housing 110, and supports a part of the upper surface of the cover shell 170. It is formed by cutting it into 'c' shape. Here, the line portion 178a of the pin rod support piece 178 is integrally connected to the cover shell 170 and is bent downward, thereby elastically pressing the pin rod 160.

Finally, the sliding heart cam 140 made of synthetic resin locks and unlocks the memory card 102 and is moved forward and backward along the guide rail 126 in the sliding slot 113 and has a heart shape on the top. A body portion 142 having a guide groove 143 formed therein, an engaging portion 144 formed at a rear end of the body portion 142 and engaging the inclined surface 105 of the memory card 102, and a body portion 142. Protruded on one side of the) is inserted into the locking groove 106 of the memory card 102 is made of a locking unit 146 for locking the memory card 102.

Figure 7a is a perspective view showing a sliding heart cam according to the present invention, Figure 7b is a perspective view showing a sliding heart cam according to the present invention from another angle.

As shown in the body portion 142 has a guide groove 143 formed around the pin portion 160b of the pin rod 160 in contact with the circumference to guide the position of the pin portion 160b, the body 142 of the At the rear end, a spring hook protrusion 142a is formed to catch the line portion of the elastic spring 150 to prevent the elastic spring 150 from being separated. In addition, the body portion 142 is formed by rounding the one side edge (142d) of the front end by sliding along the inclined portion (119c) of the above-mentioned heart cam support wall 119 when the sliding heart cam 140 moves forward. Rotate outside of 120).

In addition, a semicircular protrusion 142b protruding in a semicircular shape is formed at the tip of the body 142 so that the semicircular protrusion 142b when the sliding heart cam 140 moves forward to contact the heart cam support wall 119. By contacting the rear end of the heart cam support wall 119, to facilitate the rotation of the sliding heart cam 140, protruding projections 142c protrude inclined in an upward gradient toward the rear of the body portion 142 to the rear When the sliding heart cam 140 is rotated to the outside of the opening 120 is supported by the elastic support 179 of the cover shell 170 described above, the rotation is stopped.

Engagement portion 144 is formed in the rear end of the body 142 extending in a triangular shape in one direction of the spring hook projection (142a), the inclined surface 144a is formed to correspond to the inclined surface 105 of the memory card 102 do.

Meanwhile, as shown in FIG. 7B, a guide groove 144b recessed in the longitudinal direction of the sliding heart cam 140 is formed on the bottom of the engaging portion 144 to move forward and backward along the aforementioned guide rail 126. To move stably. Here, the right side 144c forming the guide groove 144b has a bottom surface in contact with the bottom surface of the housing 110, and at the same time, the inner wall of the right side 144c is in contact with the side wall of the guide rail 126, thereby sliding. The heart cam 140 may be stably moved forward and backward according to the guide rails 126.

On the other hand, the left side portion (144d) is formed to be lower than the right side portion (144c) to be able to slide in the upper portion of the guide rail 126, the sliding heart cam 140 moves forward to the outside of the opening 120 In the case of rotation stops the rotation of the sliding heart cam 140 is caught by the above-described separation prevention projection 128 and prevents the engaging portion 144 is separated from the card slot 112.

The locking portion 146 is a means for locking the memory card 102 by engaging the locking groove 106 of the memory card 102 and protruding from one side of the body portion 142. Here, the locking portion 146 is formed spaced apart by the height of the separation prevention jaw (119a) of the heart cam support wall 119 described above at the lower side. This is because when the sliding heart cam 140 is rotated to the outside of the opening 120, the locking portion 146 is not caught by the release prevention jaw 119a, and the side of the body portion 142 is the release prevention jaw 119a. To get caught).

On the other hand, the locking unit 146 forms an inclined surface 146a to be inclined with an upward gradient toward the rear so that the inclined surface 105 of the memory card 102 is moved backward while sliding.

Next, the guide groove 143 formed on the body 142 will be described. 8 is a view showing a guide groove of the sliding heart cam according to the present invention. As shown, the guide groove 143 is a groove formed so that the pin portion 160b of the pin rod 160 abuts and can be turned, and includes a first section 147a, a second section 147b, and a third section ( 147c) and a fourth section 147d, and between the sections 147a, 147b, 147c, and 147d, respectively, the first step 148a, the second step 148b, the third step 148c, and The fourth step 148d is formed. That is, the first step 148a is formed between the first section 147a and the second section 147b, and the second step 148b between the second section 147b and the third section 147c. A third step 148c is formed between the third section 147c and the fourth section 147d, and a fourth step 148d is formed between the fourth section 147d and the first section 147a.

Here, the steps 148a, 148b, 148c and 148d are formed by varying the depths of the sections 147a, 147b, 147c and 147d, and the pins are formed by forming the steps 148a, 148b, 148c and 148d. The pin portion 160b of the rod 160 rotates in the clockwise direction, and rotation in the reverse direction is impossible.

Meanwhile, a stop recess 149 recessed in a rounded manner is formed in the radial partition wall forming the third section so that the pin portion 160b of the pin rod 160 is received and fixed.

The process of fixing and supporting the sliding heart cam 140 from the rear while the pin portion 160b of the pin rod 160 abuts on the guide groove 143 of the sliding heart cam 140 configured as described above, first, the housing 110. When the memory card 102 is inserted into the card slot 112, the front end of the memory card 102 is engaged with the engaging portion 144 of the sliding heart cam 140, and the locking groove 106 of the memory card 102 is inserted into the card slot 112. ), The locking portion 146 of the sliding heart cam 140 is inserted. In this state, when the memory card 102 is press-fitted against the force of the elastic spring 150, the memory card 102 and the sliding heart cam 140 move together in the direction of the memory card 102 to guide, The position of the pin part 160b of the pin rod 160 which contacts the groove 143 changes. That is, the pin 160b moves from the first section 147a to the second section 147b. When the pin portion 160b reaches the front partition wall of the second section 147b, the pin portion 160b is supported by the partition wall and can no longer move, and the sliding heart cam 140 also stops moving forward.

Next, when the force for pressing the memory card 102 is released, the pin portion 160b moves to the third section 147c and is received in the stop recess 149 so that the sliding heart cam 140 is fixed to the rear side. .

Therefore, the memory card 102 locked to the sliding heart cam 140 is also located at the back of the card slot 112 of the housing 110 at the same time, and is electrically connected to the connection terminal 130 to give information to the printed circuit board. I can receive it. At this time, due to the step 148a between the first section 147a and the second section 147b, the pin portion 160b does not return to the first section 147a but proceeds only in the direction of the third section 147c. Will be.

On the other hand, when the memory card 102 is pressed again to take out the memory card 102, the pin portion 160b is moved to the partition wall of the fourth section 147d. At this time, the second step 148b does not return to the second section 147b but proceeds only in the direction of the fourth section 147d. In addition, since the distance between the rear partition wall of the third section 147c and the fourth section 147d is short, the sliding heart cam 140 stops after only a slight distance is moved backward. When the force for pressing the memory card 102 is released in this state, the pin portion 160b is moved to the first section 147a along the fourth section 147d, and the sliding heart cam 140 is relatively elastic springs. It is moved forward by the elastic restoring force of 150. At this time, similarly, the pin portion 160b does not return to the third section 147c by the third step 148c.

Hereinafter, an operation in which the memory card is inserted into the memory card connector of the present invention configured as described above and locked to the sliding heart cam and moved backward to be fixed will be described in detail.

Figure 9a is a view showing a state in which the sliding heart cam is rotated from the front, Figure 9b is a view showing that the sliding heart cam locks the memory card is inserted into the memory card, Figure 9c is a sliding heart cam is a memory card The figure shows a state in which it is moved backward and fixed together.

As shown in FIG. 9A, when the sliding heart cam 140 is positioned at the front due to the elastic force of the elastic spring 150, the sliding heart cam 140 is inclined 119c of the heart cam support wall 119. Sliding along and rotates to the outside of the opening 120. The rotation angle at this time is an angle until the rotation of the sliding part of the heart cam 140 contacts the side wall of the cover shell 170 and stops. At this time, the pin portion 160b of the pin rod 160 is located at the rear of the first section 147a, and the other pin portion 160a of the pin rod 160 is the pin portion insertion hole of the heart cam support wall 119 ( 119b) is rotatably inserted.

Here, when the memory card 102 is pressed into the card slot 112 of the housing 110, as shown in Figure 9b, the sliding heart cam 140 is rotated to its original state, the locking unit 146 is The memory card 102 is inserted into the locking groove 106 of the memory card 102 to lock the memory card 102, and the engaging portion 144 engages with the tip of the memory card 102.

Therefore, the sliding heart cam 140 is moved backward with the memory card 102, and the pin portion 160b relatively moves from the first section 147a to the second section 147b, and the memory card 102 When the force for press-in) is released, the pin unit 160 moves to the third section 147c and is received in the stop recess 149.

As shown in FIG. 9C, the pin portion 160b of the pin rod 160 is fixed to the stop recess 149 of the sliding heart cam 140, that is, the sliding heart cam 140 is disposed in the housing 110. The memory card 102 is completely mounted in the card slot 112 of the housing 110 in a fixed state moved to the rear of the housing 110, and the connection terminal 130 of the housing 110 is connected to the memory card 102. The terminal portions 104 are electrically connected to each other.

On the other hand, when the memory card 102 is taken out from the card slot 112 of the housing 110, when the memory card 102 is pressed again, the pin portion 160b received in the stop recess 149 is released. The sliding heart cam 140 is moved forward.

As described above, the sliding heart cam 140 is moved together forward and backward in accordance with the movement of the memory card 102 to be engaged, and is fixed by the pin rod 160 contacting the guide groove 143. And release. Therefore, the memory card connector 100 according to the present invention can insert and detach a memory card by a push-push mechanism.

 According to the present invention as described above, when the sliding heart cam is moved forward and rearward by forming a guide groove on the engaging portion and the guide rail on the bottom of the housing, the sliding heart cam moves stably along the guide rail. Can be.

Another effect of the present invention is that when the sliding heart cam is rotated for locking the memory card by engaging the engagement preventing projection after the rotation by the intended angle of rotation, thereby preventing the complete departure out of the housing.

Claims (6)

The body 110 and the body 142, which is installed on the housing 110 to which the memory card 102 is mounted, is installed on one side of the housing 110, and has a heart-shaped guide groove 143 formed thereon. And a locking portion 146 protruding from one side of the body portion 146 and the locking portion 146 formed to engage with the front end of the memory card 102 at the rear end thereof to lock the memory card 102. Sliding heart cam 140, the heart cam support wall 119, protruding from the bottom of the housing 110 above the sliding heart cam 140 to induce rotation of the sliding heart cam 140, the sliding heart An elastic spring 150 installed at the rear of the cam 140 to press the sliding heart cam 140 forward, one side is fixed to the heart cam support wall 119, the other side is the guide groove 143 The sliding heart cam 140 is fixed and released by abutting in contact with Key in the memory card connector comprising a pin rod (160), and the cover shell (170) for ssuiwojyeo the top of the housing (110) supporting the load pin 160, A guide groove 144b recessed in the longitudinal direction of the sliding heart cam 140 is formed at the bottom of the engaging portion 144, and the guide is formed at the bottom of the housing 110 facing the guide groove 144b. The guide rail 126 is protruded in the longitudinal direction to a size corresponding to the groove 144b to guide the sliding heart cam 140 forward and backward, and the guide rail 126 in the center of the guide rail 126. The anti-separation protrusion 128 is protruded in the longitudinal direction of the) so that the engagement portion 144 is caught when the sliding heart cam 140 rotates, thereby preventing the sliding heart cam 140 from being separated. An opening 120 is formed on a sidewall of the heart cam support wall 119 so that a part of the sliding heart cam 140 is partially exposed to the outside, and the sliding heart cam 140 and the memory card 102 are formed. When the sliding heart cam 140 is partially exposed to the opening 120 at the time of departure, the locking portion 146 is released from the locking groove 106, the housing structure of the memory card connector. delete The memory card of claim 1, wherein the rear end of the heart cam support wall 119 is formed to be inclined so that the sliding heart cam 140 is partially exposed to the opening 120 while rotating along the inclined surface. Housing structure of the connector. According to claim 3, The rear end of the heart cam support wall 119, the separation prevention jaw (119a) protrudes in the longitudinal direction of the housing 110, so that the sliding heart cam 140 is moved back The housing structure of the memory card connector, characterized in that to prevent the departure to the card slot 112 when rotated to. According to claim 3, The upper end of the heart cam support wall 119, the lifting prevention jaw (119d) is formed in the longitudinal direction of the housing protruding to prevent the sliding heart cam 140 to lift upwards Housing structure of the memory card connector. The fixing protrusion 124 protruding outward is formed on both side walls of the housing 110, and the cover shell 170 is fixed to the cutting protrusion 124 corresponding to the fixing protrusion 124. Forming a) housing structure of the memory card connector, characterized in that the removal tolerance of the cover shell 170 and the housing 110.

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