TWM459569U - Drawer-type card connector - Google Patents

Description

Drawer card connector

The invention discloses a drawer type card connector, in particular to a drawer seat anti-reverse insertion structure of a drawer type card connector.

An electronic card connector disclosed in the Chinese Patent Publication No. M419293, which comprises an insulating body, a plurality of conductive terminals housed in the insulating body, a shielding shell covering the insulating body, and an electronic card for carrying The drawer seat and the card ejecting mechanism mounted on one side of the insulative housing, the insulative housing and the shielding shell are arranged to receive a docking space of the drawer seat, and the drawer seat can be inserted into and withdrawn from the docking space. The drawer seat includes a main body frame provided with a receiving portion and a cover portion at one end of the main body frame. The accommodating portion is configured to receive the electronic card, and the guiding rib portion is convexly protruded from the bottom of the bottom of the main body frame, and the insulating body is provided with a groove matching the guiding ridge portion, and the main frame is Corresponding cooperation between the guiding rib portion and the groove on the insulating body prevents the drawer seat from being inserted into the insertion space in the reverse direction. The edge of the other end of the main body frame is chamfered at an arc shape, and the arc-shaped chamfer is used to guide the drawer seat to be properly inserted into the docking space.

However, in order to adapt to the trend of miniaturization of electronic devices in today's society, the current electronic card connectors have also been gradually miniaturized or even miniaturized. Therefore, the structure of the insulative housing and the shielding shell of the electronic card connector is made smaller and thinner, and only the guide rib portion protruding downward from the drawer seat in the above prior art is used to achieve the drawer seat. Anti-reverse insertion has far fallen short of actual demand. In the prior art, the drawer seat can be easily reversely inserted into the docking space as long as it is used with a little force. The reverse insertion of the drawer can cause damage to the connector and the inability to use the electronic card, causing a lot of trouble for the consumer.

Therefore, it is necessary to provide an improved drawer type card connector to overcome the above drawbacks.

The purpose of this creation is to provide a drawer type card connector having an improved anti-reverse insertion structure.

In order to achieve the above object, the present invention adopts the following technical solution: a drawer type card connector, comprising an insulative housing, a plurality of conductive terminals received in the insulative housing, a shielding shell provided on the insulative housing and having a top plate, and a drawer seat carrying an electronic card, the shielding shell and the insulative housing together form a docking space, the drawer base includes a main body portion for receiving a receiving space of the electronic card, and an operating portion fixed to the front end of the main body portion, the main body portion The surface is provided as a stepped step portion and is formed with a crimping portion, and the insulating body is formed with a crimping wall corresponding to the crimping portion, the crimping portion is pressed against the crimping wall, and the rear end of the main body portion is inverted An anti-reverse insertion structure for preventing the drawer seat from being reversely inserted is provided at the corner, and the anti-reverse insertion structure is a concave portion formed inwardly from a chamfer of the rear end of the main body portion.

Further, the main body portion includes one end side portion on both sides and an end portion perpendicularly connecting the pair of side end edges, and the crimping portions are a pair, respectively formed by extending outward sides of the side portions, A guiding surface is formed at two ends of the rear end portion, a stopping surface is formed at a rear end of the crimping portion, the anti-reverse insertion structure is a pair, and each anti-reverse insertion structure includes one guiding surface And a corresponding stop surface.

Further, the stop surface is a plane or a curved surface.

Further, the guiding surface is a plane or a curved surface.

Further, the stopping surface is a plane, the guiding surface is a plane or a curved surface, and an angle a is formed between the stopping surface and the outer side surface of the crimping portion, and the angle a is not less than 90 degrees.

Further, the insulative housing comprises a flat bottom wall, and the crimping wall is disposed on two sides of the bottom wall, and the crimping portion is correspondingly pressed against the upper surface of the crimping wall of the insulative housing.

Further, the lower surface of the side portion of the drawer seat is convexly formed with a guiding convex portion, the guiding convex portion and the crimping portion are stepped, and the corresponding guiding convex portion of the insulating body is provided with a guiding groove.

Further, the guiding protrusion comprises a carrying portion for carrying an electronic card formed horizontally extending into the receiving space.

Further, the shielding shell includes a side plate formed by bending downwardly from both sides of the top plate, and the side plate is formed with a snap spring piece, and the two ends of the snap spring piece are integrally formed with the side plate, and the middle side of the snap spring piece is inserted. The connecting space is formed to form an elastic latching portion, and the snapping elastic piece is separated from the top plate, and the drawer seat is correspondingly provided with a locking concave portion that is buckled with the elastic buckle portion.

Further, the rear end edge of the top plate is bent downward to form a resilient arm portion, and the elastic arm portion includes an end portion integrally connected with the top plate, an elastic portion formed by the end portion, and an edge portion of the elastic portion. a contact portion formed in the connecting space and abutting against the drawer seat, and a contact portion formed by the edge of the abutting portion, the rear end of the insulating body correspondingly has a switch terminal fixedly contacting with the contact portion, the switch terminal includes The elastic end is in constant contact with the contact portion of the elastic arm portion on the shielding shell, and the contact portion and the abutting portion are both located inside the elastic end of the switch terminal.

Compared with the prior art, the creative drawer type card connector has the following beneficial effects: by providing an anti-reverse insertion structure at the chamfer of the main body portion of the drawer seat, when the drawer seat is reversely inserted, the anti-reverse insertion structure corresponds to the insulating body. The side crimping wall resists to generate a blocking force to achieve an anti-reverse insertion function for the drawer seat.

100‧‧‧Drawer card connector

1‧‧‧Insulating body

11‧‧‧ bottom wall

111‧‧‧ guiding slot

12‧‧‧Crimping wall

121‧‧‧ side gap

122‧‧‧Bumps

123‧‧‧ Guided slope

124‧‧‧ Limit bumps

125‧‧‧Resistance surface

13‧‧‧ rear end wall

131‧‧ ‧ post gap

132‧‧‧fixed slot

2‧‧‧Electrical terminals

3‧‧‧Shaded housing

31‧‧‧ top board

32‧‧‧ side panels

321‧‧‧ card holder

322‧‧‧ Limit gap

323‧‧‧welding feet

324‧‧‧Snap snaps

325‧‧‧Flexible buckle

33‧‧‧Flexible arm

331‧‧‧End

332‧‧‧Flexible Department

333‧‧‧Resistance

334‧‧‧Contacts

4‧‧‧Switch terminals

41‧‧‧Flexible end

42‧‧‧ fixed end

43‧‧‧Weld Department

5‧‧‧Drawer

50‧‧‧ Main body

51‧‧‧ accommodating space

511‧‧‧ upper surface

52‧‧‧Operation Department

53‧‧‧ side

531‧‧‧Guided convex

5311‧‧‧Loading Department

532‧‧‧Crimp

5321‧‧‧Card holding recess

5322‧‧‧ stop surface

54‧‧‧ front end

55‧‧‧ Back end

551‧‧‧ Guide surface

56‧‧‧Anti-reverse insertion structure

57‧‧‧Danger Prevention Department

58‧‧‧Steps

The first picture is a three-dimensional combination diagram of the creative drawer type card connector;

The second figure is a partial exploded view of the drawer type card connector of the present invention, which shows a state diagram of the drawer seat and the shielding shell separated from the insulating body;

The third figure is a partial exploded view of the drawer type card connector of the present invention, which shows a state in which the drawer seat is normally inserted into the accommodating space and the shielding case and the switch terminal are separated from the insulating body;

The fourth figure is a perspective view of the drawer seat of the creative drawer type card connector;

The fifth drawing is a partial exploded view of the drawer type card connector of the present invention, which shows a state diagram of the drawer seat before being inserted into the insulating body in reverse, and the shielding housing is removed in the figure for clarity;

The sixth figure is a top view of the drawer seat of the creative drawer type card connector.

Referring to the first to third figures, the inventive drawer type card connector 100 includes an insulative housing 1, a plurality of conductive terminals 2 received in the insulative housing 1, and a mask made of metal on the insulative housing 1. The shielding case 3, the switch terminal 4 fixed at the rear end of the insulative housing 1, and the drawer seat 5 for carrying an electronic card (not shown). The shielding housing 3 and the insulative housing 1 together form a docking space (not shown). The drawer seat 5 can be inserted into and out of the docking space. For the sake of description, the end of the drawer card connector 100 inserted into the drawer seat 5 is regarded as the front end, and the other end is regarded as the rear end; in addition, for the uniformity of the full text direction, the docking end of the drawer seat 5 is regarded as It is the rear end of the drawer seat 5, and the other end is regarded as the front end.

Referring to the second and third figures, the insulative housing 1 includes a flat bottom wall 11 , a crimping wall 12 extending upward from both sides of the bottom wall 11 , and an end wall extending upward from the rear end edge of the bottom wall 11 . 13. The upper surface of the bottom wall 11 is recessed downwardly adjacent to the crimping wall 12 to form a guiding groove 111. The guiding groove 111 extends rearward from the front end of the insulating body 1 for guiding the drawer seat 5 on the insulating body. 1 slide on. The side of each of the crimping walls 12 is formed with a side notch 121. The outer surface of the pressing wall 12 is formed with a plurality of protrusions 122. The surface of the protrusions 122 is inclined with a guiding slope 123. The guiding inclined surface 123 is a flat surface. In other embodiments, the guiding inclined surface 123 may be disposed as a curved surface according to actual requirements; and the outer surface of the pressing connecting wall 12 is formed with a plurality of protrusions near the protruding block 122. a limiting protrusion 124 is disposed on the limiting protrusion 124. The pressing surface 125 is flush with the upper surface of the crimping wall 12 and the limiting protrusion is in the embodiment. The protrusions 124 are in the shape of a rectangular parallelepiped. In other embodiments, the actual requirements of the limiting protrusions 124 can also be designed into a cylindrical shape, a square shape, and the like. A gap 131 is formed in the middle of the rear end wall 13 after the insertion space is penetrated. A fixing groove 132 for receiving the fixed switch terminal 4 is opened at a side of the rear end wall 13 .

Referring to the second and third figures, in the embodiment, the conductive terminal 2 is fixed to the insulative housing 1 by integral molding, and a portion of the conductive terminal 2 in contact with the electronic card protrudes into the insertion space.

Referring to the first to third figures, the shielding case 3 includes a flat top plate 31, side plates 32 bent downwardly from both sides of the top plate 31, and bent downward from the rear end edge of the top plate 31. And the elastic arm portion 33 formed to extend toward the one side plate 32. A latching hole 321 is formed in the side plate 32 , and the latching hole 321 is correspondingly engaged with the bump 122 on the insulative housing 1 . A limiting notch 322 is defined in the position of the side plate 32 adjacent to the holding hole 321 . The limiting notch 322 is correspondingly supported by the limiting protrusion 124 on the insulative housing 1 . The locking hole 321 is engaged with the protrusion 122 and the limiting notch 322 is engaged with the limiting protrusion 124 to achieve stable holding of the shielding shell 3 and the insulating body 1 . The side plate 32 is also horizontally bent and extended to form a plurality of soldering legs 323 connected to a mating circuit board (not shown). A snap tab 324 is formed on the side of the side panel 32 corresponding to the side of the side of the insulative housing. The two ends of the latching tab 324 are integrally formed with the side panel 32. The middle of the latching tab 324 protrudes into the insertion space to form an elastic buckle. The portion 325 is separated from the top plate 31 such that the elastic snap portion 325 can elastically deform to the outside of the card space. The elastic arm portion 33 includes an end portion 331 integrally connected to the top plate 31 of the shielding case 3, an elastic portion 332 extending from the end portion 331 toward the one side plate 32 and obliquely bent in the direction of the insertion space, and an elastic portion The end of the 332 is bent and extended into the insertion space to form an abutting portion 333 for abutting against the drawer seat 5 and a contact portion 334 formed by the end edge of the abutting portion 333 for contacting the switch terminal 4. The elastic portion 332 is located outside the rear end wall 13 of the insulative housing 1 , and the abutting portion 333 is formed by the middle of the rear end wall 13 , and then the notch 131 protrudes into the insertion space.

Referring to the first to third figures, the switch terminal 4 is formed by punching a metal sheet, and includes a flat elastic end 41, a fixed end 42 formed by bending one end of the elastic end 41 and bent at an angle, and The fixed end 42 extends downwardly from the welded portion 43 outside the insulative housing 1. The fixing end 42 is fixed in the fixing groove 132 of the insulative housing 1 , and the elastic end 41 protrudes into the notch 131 after the rear end wall 13 . The contact portion 334 and the abutting portion 333 of the elastic arm portion 33 are both located inside the elastic end 41 of the switch terminal 4 and the contact portion 334 is normally in contact with the elastic end 41. When the drawer seat 5 is normally inserted into the docking space, the abutting portion 333 of the drawer seat 5 against the top elastic arm portion 33 forces the elastic arm portion 33 to be elastically deformed toward the rear end to be closedly connected with the switch terminal 4 to achieve a switching function. The new type of drawer type card connector is used to integrally form the elastic arm portion 33 and the shield case 3 to reduce the number of parts while saving the mold cost. In addition, in the present embodiment, the contact portion 334 of the elastic arm portion 33 is designed to be located inside the elastic end 41 of the switch terminal 4, thereby effectively making the elastic end 41 of the switch terminal 4 away from the top plate 31 of the shield case 3, thereby effectively The switch failure is prevented from occurring due to contact between the elastic end 41 of the switch terminal 4 and the top plate 31 of the shield case 3.

Referring to the first to fourth figures, the drawer base 5 includes a main body portion 50 provided with a receiving space 51 and an operation portion 52 integrally provided with one end of the main body portion 50 to provide a user's grasping and pressing. The main body portion 50 is substantially in the shape of a hollow rectangular frame and is provided with an upper surface 511. The main body portion 50 includes two side portions 53 on both sides and front ends 54 and rear sides of the vertical connection side portions 53. End 55. The two side portions 53, the front end portion 54 and the rear end portion 55 are surrounded by a housing space 51 for receiving an electronic card. One of the corners of the accommodating space 51 is formed by the main body portion 50 to form the foolproof portion 57. The lower surface (not shown) of the side portion 53 is convexly formed with a guiding convex portion 531. The guiding convex portion 531 includes a bearing portion for carrying an electronic card extending horizontally into the receiving space 51. 5311. The outer side surfaces of the two side portions 53 are formed with a crimping portion 532. The crimping portion 532 and the guiding convex portion 531 form a stepped step portion 58 on the lower surface of the drawer base 5 (refer to FIG. 5). Shown). The intermediate portion of the outer surface of the crimping portion 532 is recessed inwardly to form a latching recess 5321 that is engaged with the elastic latching portion 325 of the shielding shell 3, and the elastic latching portion 325 can also correspond to The side notch 121 on the insulative housing 1 cooperates with the buckle.

Referring to FIG. 4 to FIG. 6 , a guide surface 551 for guiding the drawer seat 5 to be smoothly inserted into the insertion space is formed at both ends of the rear end portion 55 of the drawer seat 5 , and the rear end of the drawer seat 5 is formed. A stopper surface 5322 is formed at one end of the portion 55. An anti-reverse insertion structure 56 is formed at a corner of the main body portion 50 of the drawer base 5 away from the one end of the operation portion 52. The anti-reverse insertion structure 56 is a recessed inward of the main body portion 50 away from one end of the operation portion 52. a recess formed. The anti-reverse insertion structure 56 is composed of a guiding surface 551 and a stopping surface 5322. In the embodiment, the guiding surface 551 is preferably a curved surface, and the stopping surface 5322 is preferably a flat surface. The angle between the stop surface 5322 and the outer side surface of the crimping portion 532 of the drawer base 5 is indicated by a (as shown in FIG. 6). In the embodiment, the angle a is preferably slightly greater than 90 degrees. Obtuse angle. In other embodiments, the angle a may be designed to be 90 degrees or greater than 90 degrees (not shown); of course, in other embodiments, the guiding surface 551 may be disposed in any one of a plane or a curved surface. The stop surface 5322 can be set to any suitable curved surface or plane to achieve an effect.

When the drawer card connector 100 of the present invention is in normal use (the drawer seat 5 is inserted into the docking space), the user first pulls out the drawer seat 5 received in the docking space; then, the electronic card is correctly placed into the receiving space. 51, at this time, the carrying portion 5311 abuts against the lower surface of the electronic card to prevent the electronic card from coming off the drawer seat 5; then the drawer seat 5 is correctly inserted into the docking space, and the guiding protrusion 531 is correspondingly received in the insulation. The guiding groove 111 on the body 1 is used for guiding the insertion of the drawer seat 5 (the drawer seat 5 is guided to be pulled out when the drawer seat 5 is pulled out), so that the sliding position of the drawer seat 5 in the docking space is accurate, the crimping The portion 532 is correspondingly pressed against the upper surface of the crimping wall 12 of the insulating body 1 for supporting the drawer seat 5, and the guiding protrusion 531 of the drawer seat 5 is matched with the guiding groove 111 of the insulating body 1 , and the drawer seat 5 is The crimping portion 532 abuts against the crimping wall 12 of the insulative housing 1 to achieve stable retention of the drawer seat 5 in the docking space and achieve accurate sliding of the drawer seat 5 in the docking space; finally, the drawer seat 5 is fully inserted. After the space is inserted, the recessed portion 5321 and the side notch 121 of the insulative housing 1 are placed Correspondingly, the elastic latching portion 325 of the shielding shell 3 is snapped into the latching recess 5321 to ensure that the drawer seat 5 fully inserted into the docking space is fixed in front and rear, and the elastic latching portion 325 on the housing 3 is shielded from The side notch 121 of the insulative housing 1 is buckled to further stabilize the drawer seat 5.

Referring to the fifth figure, when the drawer seat 5 of the drawer card connector 100 of the present invention is inserted into the docking space in the reverse direction, the upper surface 511 of the main body portion 50 of the drawer base 5 abuts against the bottom of the insulating body 1. On the upper surface of the wall 11, the guiding protrusion 531 formed on the drawer seat 5 abuts against the front end of the shielding case top plate 31 to prevent the drawer seat 5 from being reversely inserted into the insertion space. When the insertion force of the user is too large, since the material of the shielding case 3 is thin, it is easy to bend upwards so that the drawer seat 5 is further inserted into the insertion space in reverse, and the anti-reverse insertion structure at the two chamfers of the drawer seat 5 at this time 56 corresponds to the front end of the crimping wall 12 of the insulative housing 1 , because the entire drawer type card connector 100 is relatively thin, and both sides of the front end have a structure of a crimping wall 12 and a side plate 32 at the same time, the anti-reverse insertion structure When the crimping wall 12 is abutted, a large blocking force can be obtained and it is insufficient to deform the crimping wall 12 and the side plates 32. The anti-reverse insertion structure 56 is correspondingly pressed against the front end of the crimping wall 12 to further strengthen the effect of preventing the reverse insertion of the drawer seat 5. In the embodiment, the anti-reverse insertion structure 56 mainly generates a blocking force by the stop surface 5322 and the crimping wall 12 to achieve an anti-reverse insertion function for the drawer base 5. The blocking force varies depending on the angle of the angle a and the shape of the stop surface 5322. When the stop surface 5322 is flat and the angle a is 90 degrees, the anti-reverse structure 56 can obtain the maximum blocking force, but the angle a is At 90 degrees, the guiding effect of the drawer seat 5 when being inserted into the drawer seat 5 is not ideal; when the stopping surface 5322 is flat and the angle a is an obtuse angle, the anti-reverse insertion structure 56 can be blocked. The force gradually decreases as the angle of the angle a increases; therefore, in order to achieve both the anti-reverse insertion effect and the guiding effect when the drawer seat 5 is inserted in the forward direction, it is preferable that the angle a is an obtuse angle slightly larger than 90, and the stop surface 5322 is The design of the plane.

The drawer type card connector 100 of the present invention is provided with an anti-reverse insertion structure 56 at a chamfer of the main body portion 50 of the drawer base 5. When the drawer seat 5 is reversely inserted, the anti-reverse insertion structure 56 corresponds to the crimping of both sides of the insulative housing 1. The wall 12 resists to create a blocking force to achieve an anti-reverse insertion function for the drawer base 5.

In summary, this creation is in line with the new patent requirements, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those who are familiar with the skill of the present invention are equivalent to the equivalent modifications or changes made by the spirit of the present creation. It should be covered by the following patent application.

5‧‧‧Drawer

50‧‧‧ Main body

51‧‧‧ accommodating space

511‧‧‧ upper surface

52‧‧‧Operation Department

53‧‧‧ side

5311‧‧‧Loading Department

532‧‧‧Crimp

5321‧‧‧Card holding recess

5322‧‧‧ stop surface

54‧‧‧ front end

55‧‧‧ Back end

551‧‧‧ Guide surface

56‧‧‧Anti-reverse insertion structure

57‧‧‧Danger Prevention Department

Claims (10)

The utility model relates to a drawer type card connector, which comprises an insulating body, a plurality of conductive terminals received in the insulating body, a shielding shell provided with a top plate covering the insulating body, and a drawer seat for carrying an electronic card, the shielding shell Forming a socket space together with the insulative housing, the drawer base includes a main body portion for receiving the receiving space of the electronic card, and an operation portion fixed to the front end of the main body portion, the lower surface of the main body portion is provided with a stepped step portion and is formed with a pressure In the connecting 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 chamfering of the rear end of the main body portion is provided to prevent the drawer seat from being reversed. The anti-reverse insertion structure is inserted, and the anti-reverse insertion structure is a concave portion formed inwardly from a chamfer of the rear end of the main body portion. The drawer type card connector of claim 1, wherein the main body portion includes one end side portion on both sides and an end portion perpendicularly connecting the pair of side end edges, the crimping portion a pair of legs respectively extending from the outer side surfaces of the side portions, a guiding surface is formed at both ends of the rear end portion, and a stopping surface is formed at a rear end of the crimping portion, and the anti-reverse insertion structure is A pair of each anti-reverse insertion structure includes one of the guiding surfaces and a corresponding one of the stopping surfaces. The drawer type card connector of claim 2, wherein the stop surface is a flat surface or a curved surface. The drawer type card connector of claim 2, wherein the guiding surface is a flat surface or a curved surface. The drawer type card connector of claim 2, wherein the stop surface is a plane, the guiding surface is a plane or a curved surface, and the stopping surface is between the outer side of the crimping portion An angle a is formed, and the angle a is not less than 90 degrees. The drawer type card connector according to any one of claims 2 to 5, wherein the insulative housing comprises a flat bottom wall, and the crimping wall is disposed on both sides of the bottom wall, the pressing The joint corresponds to the upper surface of the crimping wall of the insulating body. The drawer type card connector according to any one of claims 2 to 5, wherein the lower surface of the side portion of the drawer seat is downwardly convexly formed with a guiding convex portion, and the guiding convex portion is pressed The connecting portion is formed in a stepped shape, and the guiding protrusion is matched with the guiding protrusion on the insulating body. The drawer type card connector of claim 7, wherein the guiding protrusion comprises a carrying portion for carrying an electronic card extending horizontally into the receiving space. The drawer type card connector according to any one of claims 1 to 5, wherein the shielding case comprises a side plate formed by bending downwardly from both sides of the top plate, and the side plate is formed with a buckle The elastic piece is integrally formed at the two ends of the buckle elastic piece, and the elastic piece is formed in the middle of the locking elastic piece, and the elastic piece is separated from the top plate, and the drawer seat is correspondingly disposed. A retaining recess is provided with a buckle of the elastic snap portion. The drawer type card connector according to any one of claims 1 to 5, wherein the rear end edge of the top plate is bent downwardly to form a resilient arm portion, and the elastic arm portion includes an integral part with the top plate. An end portion of the connecting portion, an elastic portion extending from the end portion, an abutting portion formed by the end portion of the elastic portion extending into the insertion space and abutting against the drawer seat, and a contact portion formed by the edge of the abutting portion, the insulating body a switch terminal that is normally open-contacted with the contact portion, the switch terminal includes an elastic end, the elastic end is in constant contact with a contact portion of the elastic arm portion on the shielding case, and the contact portion And the abutting portions are located inside the elastic end of the switch terminal.