TWI514688B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for electrically connecting a chip module to a printed circuit board.

A conventional electrical connector for connecting a chip module having a pin, comprising: an insulating body provided with a terminal receiving hole; and a conductive terminal received in the terminal receiving hole, the conductive terminal comprising a main body portion and extending upward from the main body portion The clamping arm, a welded portion that is bent downward from the main body portion, and a holding portion that extends from the main body portion to both sides. The terminal receiving hole has an inner wall, the conductive terminal is exposed to the inner wall, and the retaining portion interferes with the inner wall and thereby the conductive terminal is fixed in the terminal receiving hole by the interference force, so that the conductive terminal is not caused when the chip module is inserted or removed Move up and down, which affects the electrical connection.

The conventional electrical connector is disposed in the inner wall of the terminal receiving hole by the retaining portion, and the conductive terminal can be prevented from moving up and down. However, due to the increasing number of conductive terminals, the interference force between the conductive terminal and the insulating body is too large, which may result in The insulating body of the plastic is warped and deformed, which ultimately affects the function of the product; there is a large interference force between the conductive terminal and the insulating body, thereby making the requirement in the process of the pin high, resulting in poor contact, etc. The phenomenon occurs; the conductive terminal and the insulating body interfere with each other. When the conductive terminal group is assembled into the insulating body, the operation is complicated and has certain difficulty, and the conductive terminal and the insulating body are relatively easily damaged.

In view of this, it is indeed necessary to provide an improved electrical connector to overcome the prior art In the defects.

It is an object of the present invention to provide an electrical connector that prevents warpage of an insulative housing.

The present invention provides an electrical connector for electrically connecting a chip module having a pin and a circuit board. The electrical connector includes an insulative housing, a conductive terminal received in the insulating body, and the conductive terminal is fixed to the circuit board. The solder ball includes a receiving surface corresponding to the upper surface and the lower surface, the receiving hole penetrating the upper surface and the lower surface, and a holding slot connected to the receiving hole, the conductive terminal including the main body portion and extending upward from the main body portion a contact portion, a bent portion extending downward from the main body portion, and a welded portion bent downward from the bent portion, wherein the bent portion and the welded portion are provided with an elastic head, the insulating body a step portion protruding from the opposite side of the inner wall into the receiving hole, the main body portion being received in the retaining groove, the elastic head abutting against the step portion and the elastic head being located at a lower side of the step portion And fixing the conductive terminal in the insulating body.

The present invention provides an electrical connector for electrically connecting a chip module having a pin and a circuit board. The electrical connector includes an insulative housing, a conductive terminal received in the insulating body, and the conductive terminal is fixed to the circuit board. The solder ball includes a receiving surface corresponding to the upper surface and the lower surface, the receiving hole penetrating the upper surface and the lower surface, and a holding slot connected to the receiving hole, the conductive terminal including the main body portion and extending upward from the main body portion a clamping arm, a bent portion extending downward from the main body portion, and a welded portion bent downward from the bent portion, wherein an inner wall of the insulating body has a front surface and a rear surface opposite to each other, the insulating body A step portion is protruded from the rear facing receiving hole, and the conductive terminal is assembled from the top to the bottom into the insulating body until the elastic head abuts the step portion in the front-rear direction, and the conductive terminal is fixed in the insulating body.

Compared with the prior art, the main body portion of the electrical connector of the present invention is received in the holding groove, And the elastic head abuts against the step portion and fixes the conductive terminal in the insulating body, that is, the main body portion of the conductive terminal and the elastic head abut the inner wall and the step portion in the front-rear direction and fix the conductive terminal to the insulation In the body, it is further prevented that the insulating body is warped and deformed due to excessive interference force between the conductive terminal and the insulating body.

100‧‧‧Electrical connector

1‧‧‧Insulating body

10‧‧‧ inner wall

101‧‧‧ front

102‧‧‧Back

11‧‧‧ upper surface

12‧‧‧ Lower surface

14‧‧‧ holding slot

15‧‧‧ receiving holes

16‧‧‧Support

17‧‧‧ accommodating slot

19‧‧‧Steps

190‧‧‧ inclined section

191‧‧‧Resistance Department

2‧‧‧Electrical terminals

20‧‧‧ Main body

21‧‧‧Clamping arm

22‧‧‧Bend

23‧‧‧Weld Department

24‧‧‧Flexible head

25‧‧‧Card Department

26‧‧‧Extension

3‧‧‧ solder balls

The first drawing is a perspective assembled view of the electrical connector of the present invention; the second drawing is a perspective assembled view of the electrical connector of the present invention; the third drawing is an exploded perspective view of the electrical connector of the present invention; A side view of the inductive body of the electrical connector of the present invention; a fifth view of the insulative body of the electrical connector of the present invention; and a sixth perspective view of the insulative body of the electrical connector of the present invention; A cross-sectional view of the inventive electrical connector taken along the VII-VII direction of the first figure, and a partial exploded view of the electrical connector of the seventh embodiment.

Referring to the first to third figures, the electrical connector 100 is electrically connected to a chip module (not shown) having a pin and a circuit board (not shown). The electrical connector 100 includes an insulative body 1 The conductive terminal 2 housed in the insulative housing 1 and the solder ball 3 for fixing the conductive terminal 2 to the circuit board.

Referring to the third to fourth figures, the conductive terminal 2 includes a main body portion 20, a clamping arm 21 bent upwardly from the main body portion 20 and extending to one side, and a bending bent downward from the main body portion 20. a portion 22, a welded portion 23 bent from the bent portion 22 and extending from the main portion An extension 26 extending outwardly from both sides. The bent portion 22 is the same as the direction in which the clamp arm 21 is bent. The conductive terminal 2 further includes an elastic head portion 24 disposed between the bent portion 22 and the welded portion 23 and a latching portion 25 connected to the elastic head portion 24. The elastic head portion 24 is located at a corner of the bent portion 22, and is held by the latching portion The width of the portion 25 is greater than the width of the elastic head portion 24. The extending direction of the engaging portion 25 is the same as the extending direction of the extending portion 26 and is perpendicular to the direction in which the clamping arm 21 extends. Both the bent portion 22 and the clamp arm 21 are located on the same side of the main body portion 20.

Referring to the third to sixth embodiments, the insulative housing 1 includes a top surface 11 and a lower surface 12 opposite to each other, a receiving hole 15 extending through the upper surface 11 and the lower surface 12, and a holding groove 14 connected to the receiving hole 15. The insulative housing 1 further includes a support portion 16 recessed from the upper surface 11 and disposed in a stepped manner with the receiving hole 15. The support portion 16 supports the conductive terminal 2 to prevent the conductive terminal 2 from moving downward when the pins of the wafer module are inserted. The receiving hole 15 and the holding groove 14 have an inner wall 10, and the insulating body 1 further includes a receiving groove 17 which is recessed upward from the lower surface 12 and accommodates the solder ball 3. The inner wall 10 includes a front surface 101 and a rear surface 102 opposite to each other, and the rear surface 102 protrudes from the receiving hole 15 with a step portion 19 including a resisting portion 191 exposed to the receiving groove 17 and abutting the latching portion 25 and The inclined portion 190 is recessed inward from the step portion 19 and resists the upward movement of the elastic head portion 24.

Referring to the seventh to eighth figures, during assembly, the conductive terminals 1 are assembled into the insulative housing 1 from top to bottom, and the main body portion 20 and the elastic head portion 24 are respectively along the front surface 101 and the rear surface 102 of the insulative housing 1. Downwardly, the welded portion 23 comes down to the step portion 19 and the elastic head portion 24 is elastically deformed, and the welded portion 23 continues to move downward until the elastic head portion 24 abuts against the inclined portion 190, while the holding portion 25 abuts against the resisting portion 191, at which time the conductive terminals 1 are assembled in place. After the assembly is completed, the conductive terminals 2 are disposed in the insulative housing 1. The main body portion 20 and the extending portion 26 are received in the holding groove 14. The clamping arm 21 is received in the receiving hole 15, and the elastic head 24 has elasticity and elastic head. Department 24 makes elastic interference and bombs The sex head 24 is abutted against the inclined portion 190, and the latching portion 25 abuts against the resisting portion 191, thereby preventing the conductive terminal 1 from moving upward. The accommodating groove 17 is inclined in a direction opposite to the inclined portion 190 with respect to one side of the step portion 19 and sandwiches the solder ball 3 together with the welded portion 23.

The main body portion 20 of the electrical connector 100 of the present invention is received in the holding groove 14, the elastic head portion 24 is abutted on the inclined portion 190, and the elastic head portion 24 is located on the lower side of the step portion 19, and the latching portion 25 abuts against the resisting portion In the portion 191, the main body portion 20 of the conductive terminal 2 and the elastic head portion 24 and the holding portion 25 respectively abut the inner wall 10 and the step portion 19 in the front-rear direction, and the inclined portion 190 gives the conductive terminal 2 a supporting force and holds the groove. 14 also provides a supporting force to the conductive terminal 2 in the opposite direction, so that the conductive terminal 2 can be fixed into the insulating body 1. At the same time, the soldering portion 23 abuts the solder ball 3 and also gives the conductive terminal 2 the same as the holding slot 14. The support of the direction. When the conductive terminals are assembled, the main body portion 20 is received in the holding groove 14, the elastic head portion 24 is located on the upper side of the step portion 19, the conductive terminal 2 continues to move downward, and the elastic head portion 24 elastically interferes with the step portion 19, and the conductive terminal 2 Then, the downward movement is performed such that the elastic head portion 24 is located on the lower side of the step portion 19, and the elastic head portion 24 abuts against the step portion 19, the assembly is completed, and the conductive terminal 2 is assembled into the insulative housing 1. The electrical connector 100 fixes the conductive terminal 2 in the insulative housing 1 by the insulative fit of the insulative housing 1 and the conductive terminal 2 in the front-rear direction, and does not interfere with the insulative housing 1 in the extending direction of the extending portion 26 . The present invention overcomes the interference between the conductive terminal 2 and the insulative housing 1 by the interference fit of the insulative housing 1 and the conductive terminal 2, thereby preventing the interference force between the conductive terminal 2 and the insulative housing 1 from being excessive, thereby preventing the insulative body 1 from being generated. Warping deformation to ensure product function.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not above The equivalents of the embodiments of the present invention are intended to be within the scope of the following claims.

100‧‧‧Electrical connector

1‧‧‧Insulating body

15‧‧‧ receiving holes

17‧‧‧ accommodating slot

19‧‧‧Steps

190‧‧‧ inclined section

20‧‧‧ Main body

21‧‧‧Clamping arm

23‧‧‧Weld Department

24‧‧‧Flexible head

25‧‧‧Card Department

26‧‧‧Extension

3‧‧‧ solder balls

Claims (10)

An electrical connector for electrically connecting a chip module having a pin and a circuit board, the electrical connector comprising: an insulative body, comprising: a receiving hole corresponding to the upper surface and the lower surface, the through surface of the upper surface and the lower surface, and a holding slot connected to the receiving hole; the conductive terminal is received in the insulating body, and comprises a main body portion, a contact portion bent upward from the main body portion, a bent portion extending downward from the main body portion, and a self-bending portion a soldering portion extending downward; and a solder ball for fixing the conductive terminal to the circuit board; wherein an elastic head is disposed between the bent portion and the soldering portion, and the insulating body is provided with an inner wall a step portion protruding toward the receiving hole in the opposite side, the main body portion being received in the holding groove, the elastic head being located on a lower side of the step portion, and fixing the conductive terminal in the insulating body, the welding portion resisting The solder ball abuts on the step portion. The electrical connector of claim 1, wherein the conductive terminal further comprises a catch portion coupled to the resilient head. The electrical connector of claim 2, wherein the insulative housing further includes a receiving groove recessed upward from the lower surface and receiving the solder ball, the step portion including being exposed in the receiving groove and resisting the holding portion The abutting portion and the inclined portion that is recessed inward from the step portion and resist the upward movement of the elastic head. The electrical connector of claim 3, wherein the width of the catch is greater than the width of the elastic head. The electrical connector of claim 3, wherein the elastic head has elasticity and elastically interferes with the inclined portion. The electrical connector of claim 1, wherein the insulative housing comprises a receiving groove recessed upwardly from a lower surface, the receiving groove being inclined in a direction opposite to the inclined portion with respect to one side of the step portion and The solder joints hold the solder balls together. The electrical connector of claim 1, wherein the contact portion is bent upwardly along a side of the main body portion, the bent portion extending in the same direction as the contact portion and both located on the same side of the main body portion. The electrical connector of claim 2, wherein the conductive terminal further includes an extending portion extending outward from the main body portion, the main body portion and the extending portion being received in the holding groove, and the holding portion The extending direction is the same as the extending direction of the extending portion, and the insulating body has a supporting portion that is recessed downward from the upper surface and disposed in a stepped manner with the receiving hole, and the supporting portion supports the conductive terminal to prevent the conductive of the chip module when the pin is inserted. The terminal moves down. An electrical connector for electrically connecting a chip module having a pin and a circuit board, the electrical connector comprising: an insulative body, comprising: a receiving hole corresponding to the upper surface and the lower surface, the through surface of the upper surface and the lower surface, and a holding slot connected to the receiving hole; the conductive terminal is received in the insulating body, and comprises a main body portion, a contact portion bent upward from the main body portion, a bent portion extending downward from the main body portion, and a self-bending portion a soldering portion extending downwardly; a solder ball to fix the conductive terminal to the circuit board; wherein an elastic head is disposed between the bent portion and the soldering portion, and an inner wall of the insulating body has a relative arrangement a front portion and a rear portion of the insulating body projecting from the rear surface of the receiving hole, wherein the conductive terminal is assembled from the top to the bottom of the insulating body until the elastic head abuts the step portion in the front-rear direction, The conductive terminals are positioned in the insulative body. According to the electrical connector of claim 9, wherein the main body portion is received in the holding groove when the conductive terminal is assembled, the elastic head is located on the upper side of the step portion, and the conductive terminal Continueing to move downward, and the elastic head elastically interferes with the step portion, and the conductive terminal is then moved downward so that the elastic head is located on the lower side of the step portion, and the elastic head abuts the step portion After the assembly is completed, the conductive terminals are assembled into the insulating body.