TWI407635B - Electrical connector - Google Patents

Abstract

An electrical connector assembly functioned as a media between an IC module and a printed circuit board, includes an insulative body, a plurality of insulative plates and a plurality of conductive contacts. The insulative body has a cavity for receiving the insulative plates in a stacked manner. Each insulative plate is designed with a plurality of contact passages. The conductive terminals pass through the contact passages orderly and reside with the stacked insulative plates. With a plurality of insulative plates, interference between the terminals is hold back, furthermore, there is no short circuit occurred therebetween.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for connecting a wafer module to a printed circuit board when testing the wafer module.

An electrical connector for connecting a chip module such as a central processing unit to a printed circuit board, in particular, an electrical connector for testing a chip module, generally comprising an insulating body disposed in the insulating body for connecting the chip module The conductive pin and the conductive terminal of the circuit in the printed circuit board and the covering device capable of driving the chip module and the conductive terminal, wherein the conductive terminal has a curvature of a certain degree to make it have better elastic deformation capability, and the insulating body is provided a terminal hole for receiving the conductive terminal.

Referring to FIG. 7 , it is a partial cross-sectional view of a prior electrical connector. The figure discloses an electrical connector for receiving the wafer module 12 and guiding the solder ball 120 on the wafer module 12 (not labeled) The electrical connector includes an insulative housing and a plurality of terminals 10 housed in the insulative housing. The insulative housing includes an upper layer 14 and a lower layer 16. The terminal 10 includes a contact portion 100 that can be coupled to the solder ball. The end portion 104 of the plate (not shown) and the base portion connecting the contact portion 101 and the end portion 104. However, there is no insulation between the bases of the terminals to isolate them. As the speed of the computer increases, the speed of the chip modules is required to be higher and higher, and the distance between adjacent terminals is required to be smaller and smaller. Mutual interference occurs between the bases of the terminals, and even if the terminals are bent to a large extent and the pressure is uneven, a short circuit may occur between adjacent terminals.

Please continue to refer to the eighth figure, which is a partial cross-sectional view of another prior art electrical connector. The chip module 22 is received and connected to the solder ball 24 of the wafer module 22, and includes an insulative housing 25 and a plurality of terminals 20 received in the terminal holes 27 in the insulative housing 25. The terminal 20 includes a solder ball. The contact portion 200 that contacts 24, the end portion 204 that is inserted into the circuit board, and the curved base portion 202 that connects the contact portion 200 with the end portion 204. The terminal 20 is held in the insulative housing 25 by the elastic force of the base portion 202. The contact portion 200 of the terminal 20 extends out of the insulative housing 25. When the wafer module 22 is pressed downward, the base portion 202 of the terminal 20 is elastically deformed by the elastic force. The contact portion 200 is brought into contact with the solder ball 24. Although the electrical connector can avoid interference between the terminals, the insulating body 25 is made of a plastic material and has a high hardness, and is hardly interfered with the terminal 20, that is, the terminal 20 and the insulating body 25 during the elastic deformation process. The wall portion and the end portion of the terminal hole 27 abut each other. Thus, the wall portion and the end portion of the terminal hole 27 may have plastic chips, and the plastic chips fall into the electrical connector, which may affect the stability of the entire electrical connection. In addition, the plastic material has poor heat dissipation, and the terminal 20 is almost completely contained in the terminal hole 27 of the plastic insulating body, so that the heat generated by the terminal during the working process is difficult to be released, so a large amount of heat cannot be quickly released. Burning the electrical connector shortens the life of the electrical connector.

Therefore, it is necessary to improve the aforementioned electrical connector to overcome the drawbacks of the prior art.

It is an object of the present invention to provide an electrical connector that has good heat dissipation and stability.

To achieve the above objective, the electrical connector of the present invention comprises a body and an auxiliary metal terminal, wherein the system is made of a non-conductive metal material, and a plurality of terminal holes are disposed thereon, and the plurality of metal terminals are received in the body Inside the terminal hole.

Compared with the prior art, the electrical connector terminal of the present invention has the following effects: the body of the metal material after the non-conducting treatment is used instead of the body of the previous plastic material, so that the electrical connector has better heat dissipation performance, and The metal body has better flexibility and does not generate debris during the process of the terminal, so that the electrical connector has better stability.

100‧‧‧Electrical connector

1‧‧‧ cover

2‧‧‧ body

20‧‧‧ body

201‧‧‧Fixed column

202‧‧‧ Pipes

203‧‧‧ accommodating holes

204‧‧‧Window Department

21‧‧‧ accommodating slot

210‧‧‧First side wall

211‧‧‧ second side wall

22‧‧‧Upper mating surface

23‧‧‧Under the mating surface

3‧‧‧Transfer components

30‧‧‧Setting trough

31‧‧‧ Positioning body

32‧‧‧Transfer

33‧‧‧ cam

34‧‧‧Insulation sheet

35‧‧‧Flexible parts

36, 37‧‧‧ Locking Firmware

4‧‧‧Metal terminals

The first figure is a perspective view of the electrical connector of the present invention; the second figure is a perspective view of the cover of the electrical connector of the present invention separated from the base; the third figure is a perspective view of the seat of the electrical connector of the present invention; 1 is a perspective view of the bottom of the electrical connector of the present invention after removing the cover; FIG. 5 is a perspective view of the fourth embodiment of the electrical connector of the present invention removed from the adapter assembly; 2 is a cross-sectional view of the electrical connector of the present invention after removing the cover body along line VI-VI; the seventh diagram is a partial cross-sectional view of the prior electrical connector; and the eighth diagram is another prior electrical connector. Partial cross-section.

Referring to the first and second figures, the electrical connector 100 of the present invention includes a base 2, an adapter assembly 3 received in the base 2, and is mounted in the adapter assembly 3 and protrudes from the adapter assembly 3. The metal terminal 4 and the cover body 1 crimped to the base body 2, the adapter assembly 3 is provided with a mounting groove 30 for accommodating a wafer module (not shown), and the cover body 1 is used for mounting the mounting groove. The wafer module within 30 applies a pressure to ensure that the conductive legs in the wafer module are in stable contact with the metal terminals 4 in the adapter assembly 3.

Referring to FIG. 5, which is a reverse perspective view of the adapter assembly 3 separated from the base 2, which is shown in the second figure, the adapter assembly 3 has a substantially square configuration including mounting for mounting on a printed circuit board ( a positioning body 31 on the upper side, an adapter body 32 for accommodating the wafer module, a body (not labeled) between the positioning body 31 and the adapter body 32, and a cam 33 on both sides of the insulating sheet 34, In the preferred embodiment of the present invention, the body is composed of a plurality of stacked insulating sheets 34. Each of the insulating sheets 34 is provided with a terminal hole (not labeled) through which the metal terminal 4 passes, the positioning body 31 and the transfer. Terminal holes corresponding to the terminal holes are also provided in the body 32. The metal terminal 4 is received in a terminal hole in the insulating sheet 34 And the two ends protrude from the positioning body 31 and the adapter body 32 (shown in FIG. 6) for contacting the printed circuit board and the wafer module. Each of the four corners of the adapter body 31 is provided with a locking member 37, and an elastic member 35 is disposed between the adjacent locking members 37. In this embodiment, the locking member 37 is a bolt, and the elastic member 35 is a spring. Replacement of components with the same function. The positioning body 31 is provided with a locking member 36 arranged around the edge thereof opposite to the locking member 37 and the elastic member 35 on the adapter body 32. The cam 33 is rotatably positioned between the positioning body 31 and the adapter body 32. .

Please refer to the third drawing, which is a perspective view of the base 2 of the electrical connector 100 of the present invention. The base 2 is formed in a substantially rectangular structure and is made of an insulating material. The body 2 includes a main body portion 20 and a through-body portion 20 for housing. The accommodating groove 21 of the plurality of stacked insulating sheets 34, wherein the main body portion 20 includes an upper mating surface 22 and a lower mating surface 23, and the adapting body 32 is fixed to the upper mating surface 22, and the positioning body 31 and the lower mating surface 23 The first receiving portion 21 is provided with two opposite first side walls 210 and two opposite second side walls 211 connecting the first side walls 210. The lengths of the two first side walls 210 are equal to the lateral length of the insulating sheet 34, and the second side walls are opposite. The length of the 211 is greater than the longitudinal length of the insulating sheet 34. Therefore, the insulating sheet 34 can be moved between the two first sidewalls 210 under the guidance of the second sidewall 211. The lower mating surface 23 is provided with a screw hole (not shown) that is locked with a bolt 36 (shown in FIG. 5) on the positioning body 31, and the upper mating surface 22 is provided with four locks 37 on the adapter body 32. A locking hole 201 is defined, and a receiving hole 203 for accommodating the elastic member 35 is disposed between the two adjacent fixing posts 201. The two opposite receiving holes 203 of the first side wall 210 adjacent to the receiving groove 21 are respectively disposed. Two sides of the two sides of the receiving groove 21 are respectively provided with a window portion 204 on the first side wall 210 of the receiving groove 21, and the window portion 204 protrudes into the receiving groove 21 when the cam 33 rotates. Inside, the spatial configuration in the receiving groove 21 is changed.

The assembly process and principle of the electrical connector of the present invention will be mainly described below.

Referring to the first to sixth figures, the positioning body 31 is fixed to the lower mating surface 23 of the base 2 by the locking member 36 thereon, and the cam 33 is rotatably mounted in the tube groove 202 of the base body 2; The insulating sheets 34 are stacked in the receiving groove 21 of the base 2, and the first side wall 210 and the second side wall 211 of the receiving groove 21 are received. And the cam 33 is positioned such that each of the insulating sheets 34 communicates with the terminal holes of the other insulating sheets 34. At this time, if the cam 33 is rotated, the insulating sheets 34 can be disposed between the first side walls 210 of the receiving slots 21. The lateral relative displacement occurs; after the insulating sheet 34 is fixed, the pre-stamped vertical metal terminal 4 is inserted into the stacked insulating sheet 34. Since the vertical metal terminal has small elasticity, the effect is not good when it is in contact with the wafer module. Therefore, after the terminals are installed, the cams 33 on both sides of the accommodating groove 21 can be rotated in the same direction at the same time, and the insulating sheets 34 are pushed by the curved cams 33, so that the insulating sheets 34 are relatively displaced, thereby forcing the metal terminals 4 in the insulating sheets 34. Bending deformation occurs, so that the metal terminal has a certain elastic deformation force. Since the metal terminal 4 has a vertical shape when inserted into the terminal hole of the insulating sheet 34, the width of each terminal hole is substantially the same as the width of the metal terminal 4, and it is not necessary to provide a large width to accommodate the bent metal terminal, thereby greatly reducing the size. The terminal pitch can meet the high-speed transmission requirement of the wafer module, and the plurality of metal terminals 4 are isolated by the insulating sheet 34 to avoid interference between the terminals. Moreover, since the deformation of the metal terminal 34 is not limited by the width of the terminal hole, the insulating sheet 34 is pushed by the cam 33 to cause a large deformation of the terminal to achieve a better elastic deformation force. In the preferred embodiment of the present invention, the insulating sheet 34 is an aluminum sheet which has been subjected to an anode non-conducting treatment, and may of course be a metal sheet which has been subjected to an anode non-conducting treatment, since the aluminum sheet has good flexibility and heat dissipation. When the push cam 33 forces the metal terminal 4 to deform, no hard interference occurs between the metal terminal 4 and the insulating sheet 34, so that the metal terminal 4 and the insulating sheet 34 can be protected, and the insulating sheet does not generate debris, and at the same time, The insulating sheet 34 of aluminum material achieves better heat dissipation performance; after the metal terminal is installed, the adapter body 32 is positioned on the mating surface 22 of the base body by the locking bolt 37 corresponding to the locking post 201 of the base body 2; The springs 35 are respectively received in the receiving holes 203, so that the adapter body 32 can be displaced up and down, and the ends of the metal terminals are received in the terminal holes on the adapter body 32 to prevent the terminals from being collided by external objects, thereby protecting the terminals. . After the chip module is mounted on the adapter body 32, the wafer module is pressed by the cover body 1 to force the adapter body 32 to move downward, and the terminal protrudes from the adapter body 32 to contact the conductive feet in the chip module. .

The following describes the other way to install the metal terminal.

The metal terminal 4 is punched into a shape bent toward the same side in advance. When mounting, the bent side of the metal terminal 4 is aligned in the direction of the cam 33, and the applied pressure forces the metal terminal 4 to expand in the vertical direction, which is close to the vertical shape, thereby The metal terminal 4 is inserted into the terminal hole of the insulating sheet 34. Thereafter, the metal terminal 4 is elastically deformed in the same direction toward the side on which the cam 33 is mounted due to the elastic restoring force. At this time, the metal terminal 4 causes the insulating sheet 34 to be displaced in the same direction. At the same time, the insulating sheet 34 pushes the cam 33 to rotate, and the metal terminal returns to a curved shape and has an elastic deformation force. In this embodiment, when the insulating sheets are stacked in the receiving groove, the insulating sheet is positioned by the cam to prevent the insulating sheet from moving between the two first side walls of the receiving groove, which affects the terminal installation, and the cam can be taken out after the terminal is installed, and the insulation is insulated. The sheet has a larger range of movement, so that the metal terminal has a better elastic deformation force, of course, the cam can be other positioning devices.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be within the scope of the following patent application.

3‧‧‧Transfer components

31‧‧‧Transfer

32‧‧‧ Positioning body

33‧‧‧ cam

34‧‧‧Insulation sheet

35‧‧‧Flexible parts

36, 37‧‧‧ Locking Firmware

Claims (14)

An electrical connector comprising: a body made of a non-conductive metal material, and having a plurality of terminal holes thereon, the body having good flexibility; a plurality of metal terminals housed in the In the terminal hole of the body, when the metal terminal is deformed, the flexibility of the body does not cause hard interference between the metal terminal and the body. The electrical connector of claim 1, wherein the system is made of aluminum which is non-conductive after passing through the anode. The electrical connector of claim 1, wherein the body comprises a plurality of insulating sheets, and the terminal holes are correspondingly disposed on the insulating sheets. The electrical connector of claim 3, wherein the insulating sheet is made of an aluminum material that is non-conductive after the anode. The electrical connector of claim 3, further comprising a seat body provided with a receiving groove, the plurality of insulating sheets being stacked in the receiving groove of the seat body. The electrical connector of claim 3, wherein the plurality of insulating sheets are relatively displaceable in a receiving groove of the base. The electrical connector of claim 6, wherein the receiving groove comprises two opposite first side walls and two opposite second side walls connecting the first side walls, the length of the two first side walls and the lateral length of the insulating sheet Similarly, the length of the two second side walls is greater than the longitudinal length of the insulating sheet. The electrical connector of claim 7, wherein the outer side of the two first side walls is provided with a rotatable cam, and the cam can be protruded into the receiving groove by rotation, thereby pushing the insulating sheet to The insulating sheet is displaced between the first side walls under the guidance of the second side wall of the receiving groove. The electrical connector of claim 8, wherein the two first side walls are respectively provided with windows The mouth portion of the cam protrudes into the receiving groove by the window portion. The electrical connector of claim 5, further comprising an adapter body disposed on the base body, wherein an elastic member is mounted between the adapter body and the base body, whereby the adapter body is seatable Move up and down. The electrical connector of claim 10, wherein the adapter body is provided with a plurality of terminal holes for receiving the ends of the metal terminals, and the terminal ends are accommodated or protruded with the up and down movement of the adapter body. Terminal hole on the body. The electrical connector of claim 5, further comprising a positioning body mounted on the positioning body, and the terminal protrudes from the positioning body for electrical contact with the printed circuit board. The electrical connector of claim 6, wherein the metal terminal is vertical before being inserted into the insulating sheet, and the vertical terminals are inserted into the plurality of insulating sheets to push the insulating sheets to the same by external force The direction moves, which in turn forces the terminals to bend and deform. The electrical connector of claim 6, wherein the metal terminal is curved before being inserted into the insulating sheet, and the terminals are forced to extend to both ends by external force and then inserted into the plurality of insulating sheets. The insulating sheet is relatively displaced by the elastic restoring force of the terminal.