CN112467438A - Electrical connector - Google Patents

Abstract

The invention discloses an electric connector, which comprises an insulating body and a conductive terminal, wherein the insulating body is provided with an upper surface, a lower surface and a terminal groove; the conductive terminal comprises a first main body part, a second main body part, an elastic arm and a pressed part, wherein the first main body part and the second main body part are accommodated in the terminal groove, the first main body part and the second main body part are arranged in parallel, a connecting bridge is integrally connected between the first main body part and the second main body part, the pressed part extends in an inclined mode from the upper end of the second main body part to the direction far away from the first main body part, and the elastic arm moves downwards and abuts against the pressed part to form electric conduction when a chip module is pressed downwards, so that a current path between the chip module and a circuit board is shortened, and the high-frequency performance of the electric.

Description

Electrical connector

The invention is a divisional application named as 'electric connector' in patent number 201810390160, X, which is applied by the applicant on 27/04 in 2018.

[ technical field ] A method for producing a semiconductor device

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

[ background of the invention ]

Chinese utility model patent No. CN206283019U discloses an electrical connector for mounting to a circuit board to electrically connect a chip module, it includes an insulation body and a conductive terminal fixed on the insulation body, the conductive terminal includes a fixed part fixed on the insulation body, an elastic arm bending upwards from the fixed part and extending out of the upper surface of the insulation body, and a welding part extending downwards from the fixed part and welding with the circuit board, when the chip module presses down the elastic arm, the conductive terminal forms an electrical conduction between the chip module and the circuit board, because the requirement for the transmission speed of high-frequency signals of the electric connector is continuously increased at present, and the elastic arm of the conductive terminal has to be arranged into a bent long arm shape due to the abutting requirement, the current path of the terminal is overlong, so that the high-frequency characteristic of the terminal is influenced, and the transmission speed of the terminal is limited.

Therefore, there is a need for a new electrical connector to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide an electric connector which can improve the high-frequency characteristic of a terminal and improve the transmission speed of the terminal.

The purpose of the invention is realized by the following technical scheme: an electric connector is used for being mounted to a circuit board to be electrically connected with a chip module and comprises an insulating body and a conductive terminal arranged on the insulating body, wherein the insulating body is provided with an upper surface, a lower surface and a terminal groove which penetrates through the upper surface and the lower surface; the conductive terminal comprises a first main body part and a second main body part which are contained in the terminal groove, an elastic arm which is bent upwards from the upper end of the first main body part and extends out of the upper surface, and a pressed part which extends upwards from the second main body part, wherein the first main body part and the second main body part are arranged in parallel, a connecting bridge is integrally connected between the first main body part and the second main body part, the pressed part extends obliquely upwards from the upper end of the second main body part in a direction far away from the first main body part, and the elastic arm moves downwards when the chip module is pressed down and is pressed against the pressed part to form electric conduction.

Further, the elastic arm presses the pressed part to form a conductive path extending substantially vertically between the chip module and the circuit board.

Further, the elastic arm comprises an inclined part extending obliquely upwards and a contact part extending from the inclined part, and the pressed part abuts against the boundary of the contact part and the inclined part.

Further, when the elastic arm presses against the pressed part, the inclined part of the elastic arm is further bent due to the pressing, and the boundary of the contact part and the inclined part slides along the pressed part to provide a supporting force.

Furthermore, the terminal groove is provided with a yielding space which is located on one side of the second main body part and receives the pressed part after bending deformation.

Furthermore, the opposite two sides of the connecting bridge respectively extend from the same-direction lateral edges of the second main body part and the first main body part in a bending manner, so that the conductive terminals are bent in a half-transverse shape.

Further, the second main body part is provided with a pair of barbs extending towards two sides and fixed on the terminal groove.

Furthermore, the electric connector also comprises a solder ball which is arranged below the conductive terminal and is welded to the circuit board.

Furthermore, a ball implanting part protruding out of the lower surface of the insulating body extends downwards from the lower end of the second main body part, and the solder ball is arranged on the ball implanting part.

Further, the pressed part protrudes upwards out of the upper surface of the insulation body.

Compared with the prior art, the invention has the following beneficial effects: the conductive terminal of the electric connector of the invention has the elastic arm which is elastically abutted against the pressed part when in butt joint so as to form a roughly vertical current path, which is beneficial to shortening the current path between the chip module and the circuit board, improving the high-frequency characteristic of the terminal and improving the transmission speed.

[ description of the drawings ]

Fig. 1 is a perspective view of the electrical connector of the present invention.

Fig. 2 is a partially exploded view of the electrical connector shown in fig. 1.

Fig. 3 is another angled partially exploded view of the electrical connector of fig. 1.

Fig. 4 is a perspective view of the conductive terminal shown in fig. 2.

Fig. 5 is a perspective view of the conductive terminal shown in fig. 4 at another angle.

Fig. 6 is a sectional view taken along line a-a of fig. 1.

Fig. 7 is a cross-sectional view of the electrical connector of fig. 1 taken along line a-a when the conductive terminals are under compression.

Fig. 8 is a perspective view of the conductive terminal of fig. 4 connecting to a terminal strip.

Fig. 9 is the electrical connector of fig. 1, wherein the conductive terminals are connected to the terminal strip.

[ description of main element symbols ]

Insulation body 1barb 220

Pressure receiving part 221 ofterminal groove 10

Ball implanting portion 222 ofelectrical connector 100

Upper surface 11 connectingbridge 23

Lower surface 12third body portion 230

Conductive terminal 2upper edge 2301

First body portion 21first connection portion 231

Second connectingpart 232 ofelastic arm 211

Inclinedportion 2110solder ball 3

Contactportion 2111 terminal strip 4

Second body portion 22

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

Hereinafter, an embodiment of the electrical connector of the present invention will be described with reference to fig. 1 to 9.

As shown in fig. 1 to 7, theelectrical connector 100 includes aninsulating body 1 having aterminal groove 10 and aconductive terminal 2 accommodated in theterminal groove 10, theinsulating body 1 has anupper surface 11 and alower surface 12 opposite to each other, and theterminal groove 10 penetrates through the upper andlower surfaces 11, 12. Theconductive terminal 2 includes a firstmain body portion 21 and a secondmain body portion 22 extending vertically, anelastic arm 211 bending upward from the upper end of the firstmain body portion 21 and extending out of theupper surface 11, and a pressedportion 221 extending upward from the secondmain body portion 22. Thesecond body portion 22 is fixed in theterminal slot 10, the pressedportion 221 is located below theelastic arm 211, the first andsecond body portions 21 and 22 are arranged at an interval facing each other, a connectingbridge 23 is integrally connected between the two, and theelastic arm 211 moves downward and presses against the pressedportion 221 when the chip module is pressed down to form electrical conduction. The pressedportion 221 extends upward from the upper end of the secondmain body portion 22 in an inclined manner, the pressedportion 221 extends in a direction away from the firstmain body portion 21, the lower end of the secondmain body portion 22 extends downward to form aball implanting portion 222, and theball implanting portion 222 is soldered to the circuit board through asolder ball 3. As can be seen from fig. 6 and 7, in the present embodiment, thecompression part 221 protrudes from theupper surface 11, and theball implanting part 222 protrudes from thelower surface 12.

As shown in fig. 4 to 5, two opposite sides of the connectingbridge 23 respectively extend from the side edges of the secondmain body portion 22 and the firstmain body portion 21 in a bending manner, in this embodiment, two opposite sides of the connectingbridge 23 respectively extend from the side edges of the secondmain body portion 22 and the firstmain body portion 21 in the same direction in a bending manner, so that theconductive terminals 2 are arranged in a bending manner in a transverse n shape. Theelastic arm 211 includes aninclined portion 2110 extending obliquely upward from an upper end of thefirst body portion 21, and an arc-shaped contact portion 2111 bent upward from theinclined portion 2110 and then bent in a reverse direction, and the pressedportion 221 abuts on a boundary between thecontact portion 2111 and theinclined portion 2110. Referring to fig. 6 and 7, when theelastic arm 211 presses the pressedportion 221, theinclined portion 2110 of theelastic arm 211 is further bent due to the pressing, and the boundary between thecontact portion 2111 and theinclined portion 2110 slides along the pressedportion 221 to provide a supporting force, so that theinclined portion 2110 is prevented from being excessively deformed due to the pressing, theconductive terminal 2 is prevented from losing elasticity, and the service life of theconductive terminal 2 can be prolonged. When theconductive terminals 2 of theelectrical connector 100 are mated, theelastic arms 211 thereof elastically abut against the pressedportions 221 at the upper ends of the vertically arrangedsecond body portions 22, and theball implanting portions 222 at the lower ends of thesecond body portions 22 are directly soldered to the circuit board, i.e., theelastic arms 211 abut against the pressedportions 221 to form a substantially vertically extending conductive path between the chip module and the circuit board. Compared with the traditional elastic terminal which can only transmit current through the bent long-arm elastic arm, theconductive terminal 2 of the invention can shorten the current path between the chip module and the circuit board to a certain extent, improve the high-frequency characteristic of theconductive terminal 2, improve the transmission speed of theconductive terminal 2 and improve the high-frequency performance of theelectric connector 100.

As shown in fig. 4 to 8, the connectingbridge 23 includes a thirdmain body 230 extending vertically, a first connectingportion 231 bent and extended from one side of the thirdmain body 230 to be connected to the firstmain body 21, and a second connectingportion 232 bent and extended from the other side of the thirdmain body 230 to be connected to the secondmain body 22. Thesecond body portion 22 includesbarbs 220 extending to both sides for holding to the inner wall surface (not labeled) of theterminal slot 10. In the present embodiment, the first connectingportion 231 is located lower than the second connectingportion 232 in the up-down direction, and the second connectingportion 232 is located above thebarb 220.

As shown in fig. 5 to 9, the thirdmain body portion 230 has anupper edge 2301 connected to a terminal material tape 4, and theupper edge 2301, thebarb 220 and theelastic arm 211 are respectively located on different planes due to theconnection bridge 23, the secondmain body portion 22 and the firstmain body portion 21. In this embodiment, the thickness direction of the secondmain body portion 22 is defined as a front-rear direction, the lateral extension direction of the secondmain body portion 22 is defined as a transverse direction, the firstmain body portion 21 and the secondmain body portion 22 are arranged at an interval in the front-rear direction, the firstmain body portion 21 and the secondmain body portion 22 are parallel to each other in the transverse direction, and the plane where the thirdmain body portion 23 is located is parallel to the front-rear direction. Theupper edge 2301, thebarb 220 and theelastic arm 211 are independent and do not affect each other, so that the customizedconductive terminal 2 can be designed for different chip modules and circuit boards, the trouble of adjusting one of the conductive terminals to affect the other two conductive terminals due to different circuit layouts can be avoided, and more possibilities in design can be provided.

The side edges of the firstmain body part 21 and the secondmain body part 22 of theelectrical connector 100 of the present invention are integrally connected through the connectingbridge 23, which facilitates one-time punch forming of theconductive terminal 2, and then theconductive terminal 2 is bent in a half-transverse shape to form a configuration in which the firstmain body part 21 and the secondmain body part 22 are arranged facing each other at an interval and theelastic arm 211 is located above thepressed part 221, so that when theelastic arm 211 is pressed against the pressedpart 221 downward, a substantially vertically extending conductive path can be formed in theconductive terminal 2, which can improve the high frequency characteristic of theconductive terminal 2 and increase the transmission speed of theconductive terminal 2. The thirdmain body 230 of the connectingbridge 23 further has anupper edge 2301 connected to the terminal material tape 4, so that theupper edge 2301, thebarb 220 and theelastic arm 211 are respectively located on different planes due to being respectively disposed on the connectingbridge 23, the secondmain body 22 and the firstmain body 21, and the design enables theconductive terminal 2 to be suitable for connecting different chip modules and circuit boards, thereby enabling the design of theconductive terminal 2 to have elasticity.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims (10)

1. An electric connector is used for being mounted to a circuit board to be electrically connected with a chip module and comprises an insulating body and a conductive terminal arranged on the insulating body, wherein the insulating body is provided with an upper surface, a lower surface and a terminal groove which penetrates through the upper surface and the lower surface; the conductive terminal comprises a first main body part and a second main body part which are contained in the terminal groove, an elastic arm which is bent upwards from the upper end of the first main body part and extends out of the upper surface, and a pressed part which extends upwards from the second main body part, and is characterized in that: the chip module is characterized in that the first main body part and the second main body part are arranged in parallel, a connecting bridge is integrally connected between the first main body part and the second main body part, the pressed part extends obliquely from the upper end of the second main body part upwards towards the direction away from the first main body part, and the elastic arm moves downwards and abuts against the pressed part to form electrical conduction when the chip module is pressed downwards.

2. The electrical connector of claim 1, wherein: the elastic arm presses the pressed part to form a conducting path extending approximately vertically between the chip module and the circuit board.

3. The electrical connector of claim 1, wherein: the elastic arm comprises an inclined part extending upwards in an inclined mode and a contact part extending from the inclined part, and the pressed part abuts against the boundary of the contact part and the inclined part.

4. The electrical connector of claim 3, wherein: when the elastic arm presses the pressed part, the inclined part of the elastic arm is further bent due to the pressing, and the boundary of the contact part and the inclined part slides along the pressed part to provide supporting force.

5. The electrical connector of claim 4, wherein: the terminal groove is provided with a yielding space which is located on one side of the second main body part and receives the pressed part after bending deformation.

6. The electrical connector of claim 1, wherein: the opposite two sides of the connecting bridge respectively extend from the same-direction lateral edges of the second main body part and the first main body part in a bending mode, so that the conductive terminals are arranged in a half transverse n shape in a bending mode.

7. The electrical connector of claim 1, wherein: the second main body part is provided with a pair of barbs extending towards two sides and fixed in the terminal groove.

8. The electrical connector of claim 1, wherein: the electric connector also comprises a solder ball which is arranged below the conductive terminal and is welded to the circuit board.

9. The electrical connector of claim 8, wherein: the lower end of the second main body part extends downwards to form a ball implanting part which protrudes out of the lower surface of the insulating body, and the solder balls are arranged on the ball implanting part.

10. The electrical connector of claim 1, wherein: the pressed part protrudes upwards out of the upper surface of the insulating body.

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