TWI453994B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to the structure of the electrical connector for grabbing a board.

The Chinese Patent Publication No. 2,454,493, issued Oct. 17, 2001, discloses an electrical connector that can be mounted on an external circuit board that includes an insulative housing, a soldering holder that is held to the insulative housing, and an outer side of the sidewall of the insulative housing. An interference groove is formed, and a support block is disposed on an inner side of the bottom of the insulating body. The solder holder is L-shaped, and includes a holding portion held in the interference groove and can be surface-welded to the external circuit board and extends to the inner side of the electrical connector. In the soldering portion, the supporting block abuts against the surface of the soldering portion, and the soldering portion is held on the insulating body by interference interference with the interference groove.

In this way, the welding holder is only held by the interference between the welding portion and the interference groove, and the holding strength is insufficient, and the fixing is not easy, and the electrical connector is unstable with the external circuit board, and the effect of grasping the board is poor.

The technical problem to be solved by the present invention is to provide an electrical connector with better gripping effect.

In order to solve the above problems, the present invention provides an electrical connector that can be soldered to an external circuit board, including an insulative housing, a plurality of conductive terminals disposed on the insulative housing, and a soldering holder retained to the insulative housing, the soldering retaining member The invention includes a holding portion that is fixed to the insulating body and a soldering portion that can be surface-welded to the external circuit board, wherein the insulating body is provided with a holding groove that interferes with the holding portion and a top block that extends toward the welded portion and can abut the soldering portion, and is held The opposite side of the slot has a slot wall, and the insulative housing is further provided with a latching block extending from the slot wall of the retaining slot to the retaining slot, the retaining portion is provided with a latching opening, and the latching block is fastened to the latching pass In the mouth.

Compared with the prior art, in this design, the retaining portion interferes with the retaining groove and is further clamped on the block by the fastening port. The presence of the top block compresses the movable space of the welded portion relative to the insulating body, thereby reducing the cause. The welding part is movable under the action of the external force to cause the card block and the buckle opening to loosen, and the cooperation between the block and the fastening port is relatively stable. Therefore, the invention has better fixing effect on the welding holder. The electrical connector can be stably welded to the external circuit board by the soldering holder, so that the electrical connector grabs the board better.

The present invention will be further described below in conjunction with the drawings and embodiments.

Referring to the first figure, the present invention discloses an electrical connector 100 that can be mated with a mating connector (not shown) in one direction and can be vertically mounted to an external circuit board in the same direction ( The electrical connector 100 includes an insulative housing 10 , a conductive terminal 20 disposed on the insulative housing 10 , and a solder holder 30 retained on the insulative housing 10 .

Referring to FIG. 1 to FIG. 7 , the insulative housing 10 can be vertically mounted on the upper side of the external circuit board, and includes the abutting wall 11 substantially parallel to the external circuit board, the front, the rear, the left side of the self-docking wall 11 , The first, second, third, and fourth side walls 12, 13, 14, 15 extending perpendicularly to the outer circuit board on the right four sides are opposite to the butting wall 11 and are mountable to the bottom wall 16 of the external circuit board. The mating space 17 into which the mating connector is inserted, the retaining slot 18 extending in the direction perpendicular to the outer circuit board and holding the solder retaining member 30, the top block 19 extending from the bottom of the insulative housing 10 to the outer circuit board, and the block 50. In the present embodiment, the top block 19 extends from the bottom of the first side wall 12 to the outer circuit board, and the outer side of the top block 19 is coplanar with the outer surface of the first side wall 12. The docking wall 11 is provided with a docking port 110 for the mating connector to be inserted. The first side wall 12 is provided with two locking blocks 120 oppositely disposed and capable of locking the mating connector, and an inner surface 121 connecting the two locking blocks 120 and extending toward the external circuit board. The holding groove 18 extends toward the outer circuit board in a direction perpendicular to the outer circuit board. The opposite sides (front and rear sides) of the holding groove 18 have the groove wall 180 and the opposite sides (left and right sides) are provided with interference grooves 181. The latching block 18 extends from the slot wall 180 of the retaining slot 18 into the retaining slot 18, and the latching block 50 includes a guiding surface 500 extending from the slot wall 180 to the retaining slot 18, and the retaining slot 18 is continuous with the docking space 17, and is docked. The projection of the port 110 in a direction perpendicular to the outer circuit board can completely cover the projection of the card 50 in a direction perpendicular to the outer circuit board to facilitate the forming and demolding of the card 50. The inner surface 121 of the first side wall 12 is opposite to the holding groove 18. The surfaces of the outer side groove walls 180 in the groove walls 180 on both sides are coplanar, which is further facilitated to manufacture.

As shown in the third figure, the conductive terminal 20 includes a holding portion 200 extending in the up-and-down direction and interfering with the second side wall 13 . The end of the self-holding portion 200 is bent toward the outside of the electrical connector 100 and can be surface-welded. The soldering end 201 of the outer circuit board and the self-holding section 200 are bent downwardly from the other end into the mating space 17 and can be mated with the mating connector. The soldering end 201 extends to the lateral side of the insulative housing 10. .

Referring to the first to fourth figures, the soldering holder 30 is L-shaped, and includes a holding portion 300 extending in a direction perpendicular to the outer circuit board and held in the insulating body 10, and a lower end of the self-holding portion 300 is parallel to The external circuit board is bent and extended and can be surface-welded to the soldering portion 301 of the external circuit board. The holding portion 300 is interfered with the holding slot 18 of the insulating body 10. The holding portion 300 is provided with a latching opening 3000, and the holding portion 300 is compliant. The guiding surface 500 is gradually engaged with the card block 50, and finally the card block 50 is fastened in the fastening port 3000 to hold the welding holder 30 on the insulative housing 10. The two sides of the holding portion 300 interfere with each other in the interference groove 181. In order to enhance the strength of the holding portion, the two sides of the holding portion 300 may be provided with a spur that interferes with the interference groove 181. The soldering portion 301 is provided with through holes 3010 extending through opposite sides thereof. The through holes 3010 are advantageous for enhancing the soldering fastness of the soldering portion 301 and the external circuit board.

The top block 19 extends from the lower portion of the insulative housing 10 toward the soldering portion 301 and can abut the soldering portion 301, thereby effectively suppressing the warping deformation of the soldering portion 301 when subjected to pressure, while the presence of the top block 19 compresses the soldering portion 301. With respect to the movable space of the insulative housing 10 , the movement of the soldering portion 301 relative to the insulative housing 10 is limited, thereby reducing the movement of the soldering portion 301 relative to the insulative housing 10 by the external force, thereby causing the block 50 and the latching port 3000 to be engaged. The risk of loosening. The soldering portion 301 is bent and extended from the lower end of the holding portion 300 to the outside of the electrical connector 100, and is located on the outer side of the electrical connector 100 with respect to the top block 19 of the holding slot 18, so that the arrangement of the top block 19 and the soldering portion 301 does not easily interfere with the electrical connection. The design of the other parts of the device 100, of course, the holding portion 300 can also be designed to extend toward the inner side of the electrical connector 100. Since the soldering portion 301 is soldered to the external circuit board and also has the function of supporting the electrical connector 100, the soldering portion 301 is electrically The extension of the outer side of the connector 100 relative to the inner side of the electrical connector 100 is more advantageous for the stability of the soldering portion 301 to support the electrical connector 100. In this embodiment, the soldering portion 301 of the L-shaped soldering holder 30 extends toward the outside of the electrical connector 100, and the latching block 50 is disposed on the outer side of the slot wall 180 of the slot wall 180 on opposite sides of the retaining slot 18, with respect to The top block 19 of the holding groove 18 is located on the outer side of the electrical connector 100, and the top block 19 is pressed against the welded portion 301 to generate a moment to the welding holder 30, which causes the holding portion 300 to further face the groove wall 180 where the block 50 is located. The abutment is advantageous for the card block 50 to be further buckled in the fastening port 3000 without being loosened; of course, the top block 19 and the welding portion 301 may also have a certain distance. When the welding portion 301 is pushed up by the pressure, the top portion is topped. The block 19 abuts against the welded portion 301 to protect the welded portion 301. The soldering end 201 and the soldering portion 301 are respectively located on opposite sides of the insulative housing 10, and the soldering end 201 also extends toward the outer side of the electrical connector 100 and is opposite to the extending direction of the soldering portion 301, so that the soldering end 201 and the soldering portion 301 are like a fork. The two support legs are very advantageous for the stability of the support of the electrical connector 100. At the same time, since the soldering end 201 and the soldering portion 301 are respectively located on opposite sides of the insulative housing 10, the electrical connector 100 can be evenly distributed by external forces. On the opposite sides of the electrical connector 100, the soldering end 201 and the soldering portion 301 are equally stressed, which is advantageous for the soldering end 201 and the soldering portion 301 to be stable with respect to the external circuit board.

In summary, this creation has indeed met the requirements of the invention patent, and filed a patent application 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-described 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 within the scope of the following patent application.

10‧‧‧Insulated body

100‧‧‧Electrical connector

11‧‧‧Docking wall

110‧‧‧ docking port

12, 13, 14, 15‧‧‧ first, second, third and fourth side walls

120‧‧‧Lock block

121‧‧‧ inner surface

16‧‧‧ bottom wall

17‧‧‧ docking space

18‧‧‧Solid slot

180‧‧‧ slot wall

181‧‧‧Interference slot

19‧‧‧Top block

20‧‧‧Electrical terminals

200‧‧‧ holding segment

201‧‧‧welding end

202‧‧‧Contacts

30‧‧‧Welding holders

300‧‧‧ Holding Department

3000‧‧‧holding mouth

301‧‧‧Weld Department

3010‧‧‧through hole

50‧‧‧ card block

500‧‧‧ Guide surface

The first figure is a perspective view of the electrical connector of the present invention.

The second figure is an assembled view of the solder holder of the electrical connector of the present invention after it is detached from the insulating body.

Figure 3 is a cross-sectional view of the electrical connector of the present invention taken along line III-III of the first figure.

Figure 4 is a cross-sectional view of the electrical connector of the present invention taken along line IV-IV of the first figure.

Figure 5 is a plan view of the insulative housing of the electrical connector of the present invention.

Figure 6 is a bottom plan view of the insulative housing of the electrical connector of the present invention.

Figure 7 is a perspective view of the insulative housing of the electrical connector of the present invention.

121‧‧‧ inner surface

180‧‧‧ slot wall

200‧‧‧ holding segment

201‧‧‧welding end

202‧‧‧Contacts

301‧‧‧Weld Department

50‧‧‧ card block

500‧‧‧ Guide surface

Claims (9)

An electrical connector that can be soldered to an external circuit board, including:
The insulating body is provided with a holding groove and a top block, and the opposite sides of the holding groove have a groove wall;
a plurality of conductive terminals, the conductive terminals are disposed on the insulative housing; and a soldering holder comprising a retaining portion that interferes with the retaining groove and a soldering portion that can be surface-welded to the outer circuit board, the top block extending toward the soldering portion and being receivable Top welding part;
The insulating body is further provided with a card block extending from the groove wall of the holding groove to the holding groove, and the holding portion is provided with a fastening port, and the block is fastened in the fastening port. The electrical connector of claim 1, wherein the soldering portion extends to the outside of the electrical connector, and the top block is located outside the electrical connector with respect to the holding slot. The electrical connector of claim 2, wherein the conductive terminal comprises a soldering end extending in a direction opposite to the soldering portion and surface soldered to the external circuit board, the soldering end and the soldering portion being respectively located on opposite sides of the insulating body. The electrical connector of claim 2, wherein the welding holder is L-shaped, the welded portion is bent from the holding portion to the outside of the electrical connector, and the block is disposed on the opposite side wall of the holding groove. On the outer groove wall, the top block is pressed against the welded portion. The electrical connector of claim 1, wherein the electrical connector can be docked with the mating connector in one direction and can be vertically mounted to the external circuit board in the same direction, and the insulative housing is provided with a mating connector for insertion. The docking space and the docking wall, the docking wall is provided with a docking port for the mating connector to be inserted, the holding slot is connected with the docking space, and the projection of the docking port perpendicular to the external circuit board can completely cover the projection of the card block perpendicular to the external circuit board. It is convenient for forming and demoulding the block. The electrical connector of claim 5, wherein the insulative housing further has a first side wall extending from a side of the butting wall to the outer circuit board, the first side wall being oppositely disposed and capable of locking the mating connector Two locking blocks and an inner surface connecting the two locking blocks and extending to the outer circuit board, the inner surface being coplanar with the surface of the outer side groove wall of the groove wall on opposite sides of the holding groove. The electrical connector of claim 1, wherein the retaining groove comprises an interference groove on opposite sides thereof and interference fit with the retaining portion. The electrical connector of claim 1, wherein the welded portion is provided with a through hole extending through opposite sides thereof. The electrical connector of claim 1, wherein the welding holder is L-shaped, the welded portion is bent and extended from the holding portion, and the holding groove extends toward the external circuit board.