TWI600230B - Card connector - Google Patents

Description

Card connector

The invention discloses a card connector, in particular to a card connector capable of preventing reverse insertion.

For example, the Chinese Patent Publication No. M432992 discloses a card connector for mounting a conventional SIM card or a micro SIM card, comprising: an insulative housing comprising a bottom plate, side walls disposed on both sides of the bottom plate, and a rear end disposed on the bottom plate. The rear wall, the bottom plate, the two side walls and the rear wall enclose a receiving groove; the plurality of conductive terminals are integrally formed on the bottom plate of the insulating body; a drawer seat is slidably inserted into and received in the receiving groove, including a handle and the SIM card A large-sized plate-shaped frame body is recessed in the middle of the frame body with a bearing groove of the same size as the micro SIM card, and the frame body is installed in the receiving groove; the card retracting structure is mounted on one side of the insulating body, including a a push rod, a sliding block and an abutting member, the push rod can push against the sliding block to abut the abutting member to push the drawer seat out of the receiving groove; and a metal shell covering the insulating body, including a top plate and a top plate The two sides of the board are formed by bending the sides vertically downward. Due to the wide application of the card connector, the size of the insulative housing is required to be higher and higher. Although the card in the previous case is provided with a card for holding the recess on the drawer seat for holding, due to The card on the shielding case and the recess on the drawer seat have elasticity, and when the operator is too strong, the reverse insertion can be realized, thereby causing the connector to be short-circuited. In the present case, the notch-shaped recessed recess is provided by the edge of the drawer seat to interfere with the stop piece recessed on the edge of the upper shielding shell, thereby realizing a better anti-reverse insertion function.

For example, the new patent publication No. M459569 of the Republic of China discloses a drawer card connector, comprising an insulative housing, a plurality of conductive terminals received in the insulative housing, a shielding housing provided with a top plate covering the insulative housing, and a carrying card for carrying the electronic card. a drawer seat, the shielding shell and the insulative housing together form a docking space, the drawer base includes a main body portion for receiving the receiving space of the electronic card, and an operating portion fixed to the front end of the main body portion, the lower surface of the main body portion is disposed a stepped portion is formed with a crimping portion, the insulating body is formed with a crimping wall corresponding to the crimping portion, and the crimping portion is pressed against the crimping wall, wherein the rear end of the main body portion The anti-reverse insertion structure for preventing the drawer seat from being reversely inserted is provided at the chamfer, and the anti-reverse insertion structure is a concave portion formed inwardly from the chamfer of the rear end of the main body portion. The drawer seat in the previous case uses the same design on both the left and the right sides. The shielding housing has an elastic snap portion that cooperates with the retaining recess on the drawer seat for holding, but when the force is too large on the operating portion, the drawer seat Reverse insertion can also occur. In this case, the recessed recess on the drawer seat extends through the top end of the entire drawer seat, and interferes with the stopper piece on the upper shielding shell, thereby preventing reverse insertion, and is easy to operate, and the device can be safely protected. The short circuit phenomenon does not occur, and the process in this case is simpler and safer.

Therefore, there is a need for an improved card connector with anti-reverse insertion functionality.

The object of the present invention is achieved by the following technical solution: a card connector comprising a base, a plurality of terminals fixed on the base, covering the base to form a receiving space with the base The upper shielding case and the drawer seat received in the receiving space, the upper shielding case is provided with a top plate, and the front end of the drawer seat is provided with a notch-shaped retaining recess, and the upper shielding shell is provided a stop piece extending downward from a side edge of the top plate, the stop piece of the upper shielding case interferes with a recessed portion of the drawer seat when the drawer seat is inserted forward to prevent the drawer seat from being reversed Plug in.

Further, the drawer base includes a main body portion having a pair of side portions, the letting recess portion is disposed at a front end of the one side portion and penetrates the front end portion, and the retaining recess portion is away from the other side portion The distance is smaller than the distance between the two sides.

Further, the card connector further includes a switch terminal located in the receiving space and held by the base, the switch terminal has a contact portion, the switch terminal and the retaining recess and the stop piece Located on the same side, when the drawer seat is inserted into the receiving space, the contact portion abuts against the top end of the drawer seat.

Further, the card connector further includes a card ejecting mechanism on one side of the base, the card ejecting mechanism includes a push rod having a resisting notch and a cam lever connecting the push rod, the upper cover The housing further includes a resisting spring that abuts against the abutting notch.

Further, the resisting elastic piece and the stopping piece are located at two sides of the upper shielding shell.

Further, the upper shielding case further includes a pair of holding arms that are oppositely disposed in the up-and-down direction and a clamping groove formed between the pair of holding arms, the drawer seat being inserted into the receiving space The edge slides along the clamping groove and is held between the pair of latching arms.

Further, the pair of holding arms include an upper holding arm and a lower holding arm, the upper holding arm is provided with a first convex portion, and the lower holding arm is disposed opposite to the first convex portion a second convex portion, the drawer base includes a main body portion having a pair of side portions, and a pair of abutting portions on the side portions and having a concave-convex surface, the drawer seat being positively inserted into the receiving space The abutting portion is held by the first convex portion and the second convex portion from the upper and lower sides to fix the drawer seat.

The object of the present invention is achieved by the following technical solution 2: a card connector comprising a base, a plurality of terminals fixed on the base, covering the base to form a receiving space with the base An upper shielding case and a drawer seat housed in the receiving space, wherein the upper shielding case is provided with a pair of holding arms that are oppositely disposed in the up-and-down direction and a clip formed between the pair of holding arms Holding the slot, the drawer seat slides along the clamping slot and is held between the pair of latching arms when the drawer seat is inserted into the receiving space.

Further, the pair of holding arms include an upper holding arm and a lower holding arm, the upper holding arm is provided with a first convex portion, and the lower holding arm is disposed opposite to the first convex portion a second convex portion, the drawer base includes a main body portion having a pair of side portions, and a pair of abutting portions on the side portion and having a concave-convex surface, when the drawer seat is positively inserted into the receiving space The abutting portion is held by the first convex portion and the second convex portion from the upper and lower sides, thereby fixing the drawer seat.

Further, the upper holding arm and the lower holding arm are made of metal stamping and have elasticity.

Compared with the prior art, the card connector of the present invention has the following advantages: the feature that the recessed portion provided at the front end of the drawer seat interferes with the stop portion recessed at the edge of the upper shielding shell, when the drawer seat is reversed At the time of insertion, since the stopper piece cannot be elastically deformed, the drawer seat is prevented from being further inserted into the accommodating space, thereby realizing anti-reverse insertion.

The first figure is a perspective view of the card connector drawer of the present invention when it is not inserted.

The second figure is a perspective view of the upper shield housing separated from other parts when the card connector drawer of the present invention is inserted in the first figure.

The third figure is an exploded perspective view of the card connector of the present invention with the drawer seat removed.

The fourth figure is an exploded perspective view of the card connector viewed from another angle.

Figure 5 is a perspective view of the drawer of the card connector of the present invention.

Fig. 6 is a view showing a state in which the drawer of the card connector of the present invention is inserted in the forward direction.

Fig. 7 is a view showing a state in which the drawer of the card connector of the present invention is reversely inserted.

Fig. 8 is a view showing a state in which the upper shield case is removed when the drawer seat is being inserted in the sixth figure.

As shown in the first to third figures, the card connector 100 of the present invention includes a base, an upper shielding shell 1 covering the base to form a receiving space 10, and being held by the base. a plurality of conductive terminals 21, a card ejecting mechanism 4 mounted on one side of the base, a drawer base 5 for loading an electronic card and inserted into the receiving space 10, and a holding device 10 and being held at the front end of the base Switch terminal 6.

Referring to the second to fourth figures together, the upper shielding shell 1 includes a top plate 11 , two side plates 12 extending vertically downward along both sides of the top plate 11 , and two holding portions at the side plates 12 . a latching hole 15 on the side plate 12, a stop piece 14 recessed from the top plate 12 and extending downwardly from the top plate 11 to the receiving space 10, and a side of the top plate 11 and The blocking piece 14 does not abut the elastic piece 16 on the same side. The stopper piece 14 penetrates the front end of the one side plate 12. Each of the latching portions 13 includes a pair of latching arms including an upper latching arm 132 and a lower latching arm 133 that are oppositely disposed in the up and down direction, and extend down the top panel 11 to the lower latching arm 133 and a pair of joint portions 131 provided in the front-rear direction and a holding groove 134 between the upper holding arm 132 and the lower holding arm 133. The upper holding arm 132 is provided with a first convex portion 1320, and the lower holding arm 133 is provided with a second convex portion 1330. The first convex portion 1320 and the second convex portion 1330 are oppositely disposed.

Referring to the second to fourth figures together, the base includes a lower shielding case 3 under the upper shielding case 1 and a terminal module 2 held by the lower shielding case 3. The terminal module 2 includes the conductive terminal 21 and an insulating body 20 that is injection molded with the conductive terminal 21 . The insulative housing 20 includes a bottom wall 201 and two side walls 202 extending vertically upward along the bottom wall 201. The two side walls 202 each include a latching projection 2021 that is fastened to the latching hole 15 . Each set of conductive terminals 21 is disposed in two rows on the left and right sides, and is electrically connected to the electronic card. Referring to the third and fourth figures, the lower shielding shell 3 includes a positioning post 31 and a bottom surface 32 of the bottom wall 201 held by the insulating body 20. Both outer sides of the lower shielding case 3 are partially covered by the side wall 202 of the insulative housing 20 to achieve a holding effect.

Referring to the third and fourth figures together, the card ejecting mechanism 4 includes a push rod 41 mounted on one side of the base and a cam lever 42 connecting the push rod 41. The push rod 41 further includes a resisting notch 410 that abuts against the resisting elastic piece 16 , and the cam lever 42 further includes a positioning hole 420 that engages with the positioning post 31 .

Referring to the second and fifth figures together, the drawer base 5 includes a main body portion 50 having a pair of side portions 53, and an operation portion integrally provided with one end of the main body portion 50 and providing a user to grasp and push. 51. Two carrying portions 52 for loading the electronic card, a resisting portion 531 located on the two side portions 53 and being held by the first convex portion 1320 and the second convex portion 1330 from the upper and lower directions, and The distance from the other side portion 53 which is notched at the top end of the one side portion 53 is smaller than the distance between the side portions 53 and the retaining recess 532 that cooperates with the stopper piece 14.

Referring to FIG. 2 to FIG. 8 together, the switch terminal 6 is received in the receiving space 10 and is fixed to a fixing portion (not shown) of the base for detecting a card insertion and a card withdrawal. A contact portion 61 that abuts against the top end of the drawer base 5 is included.

Referring to FIG. 6 to FIG. 8 together, when the drawer seat 5 is inserted into the receiving space 10, the side portion 53 of the drawer seat 5 slides along the clamping groove 134, and the top of the drawer seat 5 The abutting portion 531 is in contact with the first convex portion 1320 and the second convex portion 1330 from the upper and lower directions, and the abutting portion 531 and the holding portion 13 are in contact with the contact portion 61. The holding is to further stabilize the drawer 5, and at this time, the stopper piece 14 interferes with the letting recess 532.

When the drawer seat 5 of the card connector 100 of the present invention is inserted into the accommodating space 10 in the reverse direction, the top end of the drawer seat 5 not provided with one side of the recessing recess 532 is abutted against the upper shielding housing 1 The stopper piece 14 is prevented from being elastically deformed by the stopper piece 14, and the drawer holder 5 is prevented from being further inserted into the accommodating space 10, and the conductive terminal 21 does not come into contact with the conductive sheet of the electronic card.

The above are only some of the embodiments of the present invention, and not all of the embodiments, and any equivalent changes taken by those skilled in the art to the technical solutions of the present invention are covered by the claims of the present invention. .

100‧‧‧ card connector

1‧‧‧Upper shielded housing

10‧‧‧ accommodating space

11‧‧‧ top board

12‧‧‧ side panels

13‧‧‧Cars Department

131‧‧‧Combination Department

132‧‧‧Upper card holding arm

1320‧‧‧First convex

133‧‧‧Under the card holding arm

1330‧‧‧second convex

134‧‧‧clamping slot

14‧‧‧stop film

15‧‧‧Snap holes

16‧‧‧Resist the shrapnel

2‧‧‧Terminal module

20‧‧‧Insulating body

201‧‧‧ bottom wall

202‧‧‧ side wall

2021‧‧‧Snap bumps

21‧‧‧Electrical terminals

3‧‧‧Shading housing

31‧‧‧Positioning column

32‧‧‧ bottom

4‧‧‧Retirement agency

41‧‧‧Put

410‧‧‧Resistance gap

42‧‧‧Cam lever

420‧‧‧Positioning holes

5‧‧‧Drawer

50‧‧‧ Main body

51‧‧‧Operation Department

52‧‧‧Loading Department

53‧‧‧ side

531‧‧‧Resistance Department

532‧‧‧Recession recess

6‧‧‧Switch terminals

61‧‧‧Contacts

no

1‧‧‧Upper shielded housing

11‧‧‧ top board

12‧‧‧ side panels

13‧‧‧Cars Department

131‧‧‧Combination Department

132‧‧‧Upper card holding arm

1320‧‧‧First convex

133‧‧‧Under the card holding arm

1330‧‧‧second convex

134‧‧‧clamping slot

14‧‧‧stop film

15‧‧‧Snap holes

16‧‧‧Resist the shrapnel

2021‧‧‧Snap bumps

21‧‧‧Electrical terminals

41‧‧‧Put

410‧‧‧Resistance gap

42‧‧‧Cam lever

5‧‧‧Drawer

531‧‧‧Resistance Department

532‧‧‧Recession recess

6‧‧‧Switch terminals

Claims (10)

A card connector includes a base, a plurality of terminals fixed on the base, an upper shielding shell covering the base to form a receiving space with the base, and being received in the receiving space The upper shielding case is provided with a top plate, wherein: the front end of the drawer seat is provided with a notch-shaped retaining recess, and the upper shielding shell is provided to extend downward from the side edge of the top plate. a stopper piece, the stopper piece of the upper shielding case interferes with the seating recess of the drawer seat to prevent the drawer seat from being reversely inserted. The card connector of claim 1, wherein: the drawer base includes a main body portion having a pair of side portions, the recumbent recess portion being disposed at a front end of the one side portion and penetrating the side portion The front end, the distance of the recessed portion from the other side portion is smaller than the distance between the two side portions. The card connector of claim 1, wherein the card connector further comprises a switch terminal located in the receiving space and held by the base, the switch terminal having a contact portion, The switch terminal is located on the same side as the recessed recess and the stop piece. When the drawer seat is inserted into the receiving space, the contact portion abuts against the top end of the drawer. The card connector of claim 1, wherein: the card connector further comprises a card ejecting mechanism on a side of the base, the card ejecting mechanism comprising a push rod having a resisting notch and A cam lever connecting the push rod, the upper shield housing further comprising a resisting elastic piece that abuts against the resisting notch. The card connector of claim 4, wherein the resisting elastic piece and the stopping piece are located on both sides of the upper shielding case. The card connector of claim 1, wherein the upper shielding case further includes a pair of holding arms disposed opposite to each other in the up and down direction and a clip formed between the pair of holding arms Holding the slot, the edge slides along the clamping slot and is held between the pair of latching arms when the drawer seat is inserted into the receiving space. The card connector of claim 6, wherein: the pair of latching arms comprise an upper latching arm and a lower latching arm, the upper latching arm being provided with a first convex portion, the lower The holding arm is provided with a second convex portion disposed opposite to the first convex portion, the drawer seat includes a main body portion having a pair of side portions, and a pair of abutting portions on the side portions and having a concave-convex surface When the drawer seat is inserted into the accommodating space, the abutting portion is held by the first convex portion and the second convex portion from the upper and lower sides, thereby fixing the drawer seat. A card connector includes a base, a plurality of terminals fixed on the base, an upper shielding shell covering the base to form a receiving space with the base, and being received in the receiving space a drawer seat, wherein: the upper shielding case is provided with a pair of holding arms disposed opposite to each other in the up and down direction and a clamping groove formed between the pair of holding arms, the drawer seat being inserted into the drawer When the space is received, the edge thereof slides along the clamping groove and is held between the pair of holding arms. The card connector of claim 8, wherein: the pair of latching arms comprise an upper latching arm and a lower latching arm, and the upper latching arm is provided with a first convex portion, the lower The holding arm is provided with a second convex portion disposed opposite to the first convex portion, the drawer seat including a main body portion having a pair of side portions and a pair of abutting portions on the side portion and having a concave-convex surface When the drawer seat is inserted into the accommodating space, the abutting portion is held by the first convex portion and the second convex portion from the upper and lower sides, thereby fixing the drawer seat. The card connector of claim 8, wherein: the upper holding arm and the lower holding arm are made of metal stamping and have elasticity.