TW201946336A - Electrical connector - Google Patents

Abstract

An electrical connector for electrically connecting a circuit board and a chip module comprises an insulating body having a plurality of terminal holes and a plurality of conductive terminals received in the terminal holes in a one-to-one correspondence. The insulating body includes opposite upper and lower surface. The terminal hole passes through the upper and lower surfaces. The conductive terminal includes a first main body portion and a second main body portion extending in an up and down direction, an elastic arm bending upward from the upper end of the first main body portion and a pressure receiving portion extending upward from the second main body portion. The elastic arm extends out of the upper surface. The second main body portion is fixed in the respective terminal hole. The pressure receiving portion is located under the elastic arm. The first main body portion and the second main body are spaced apart from each other. A connecting bridge is integrally connected between the first body portion and the second main body portion. When the chip module is pressed down, the elastic arm moves downward to press the pressure receiving portion to form electrical conduction, which can shorten the current path between the chip module and the circuit board, and improve the high frequency performance of the electrical connector.

Description

Electric connector

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

China Mainland Utility Model Patent Bulletin No. CN206283019U discloses an electrical connector for mounting to a circuit board to electrically connect a chip module, which includes an insulating body and a conductive terminal fixed to the insulating body. The conductive terminal includes a fixed The holding portion of the insulating body, an elastic arm bent upward from the holding portion to extend the upper surface of the insulating body, and a welding portion extending downward from the holding portion to solder to the circuit board, when the chip module is pressed down, In the case of an elastic arm, the conductive terminal forms electrical conduction between the chip module and the circuit board. Due to the current increasing requirements for the speed at which electrical connectors transmit high-frequency signals, the elastic arm of such conductive terminals is in contact with Need to be set into a curved long arm shape, which will cause the current path of the terminal to be too long, which will affect its high frequency characteristics and limit its transmission rate.

Therefore, in view of the above problems, it is really necessary to provide a new electrical connector to solve the above problems.

The object to be achieved by the present invention is to provide an electrical connector capable of improving the high-frequency characteristics of a terminal and increasing the transmission rate of the terminal.

To solve the above technical problems, the present invention provides an electrical connector for mounting on a circuit board to electrically connect a chip module. The electrical connector includes an insulating body with a terminal slot and is housed in the terminal slot. The conductive body has an upper surface and a lower surface opposite to each other, and the terminal groove runs through the upper and lower surfaces; the conductive terminal includes a first body portion and a second body portion extending in an up-down direction, An elastic arm extending upward from the upper end of the first main body portion to extend the upper surface and a pressure receiving portion extending upward from the second main body portion; the second main body portion is fixed in a terminal groove, and the receiving The pressing part is located below the elastic arm, the first and second main body parts are spaced apart from each other, and a connection bridge is integrally connected between the two. When the chip module is pressed down, the elastic arm moves downward and presses against To the pressed part to form electrical conduction.

Compared with the prior art, the present invention has at least the following beneficial effects: when the conductive terminals of the electrical connector of the present invention are mated, their elastic arms elastically abut against the pressured portion to form a substantially vertical current path, which is beneficial to shortening the chip module The current path between the circuit boards can improve the high-frequency characteristics of the terminals and increase the transmission rate.

Hereinafter, specific embodiments of the electrical connector of the present invention will be described with reference to the first to ninth drawings.

The electrical connector 100 of the present invention is used for soldering to a circuit board (not shown) to electrically connect a chip module (not shown). As shown in the first to seventh figures, the electrical connector 100 includes An insulating body 1 having a terminal slot 10 and a conductive terminal 2 housed in the terminal slot 10. The insulating body 1 has an upper surface 11 and a lower surface 12 opposite to each other. The terminal slot 10 penetrates the upper and lower surfaces. 11,12. The conductive terminal 2 includes a first body portion 21 and a second body portion 22 extending in the up-down direction, an elastic arm 211 bent upward from the upper end of the first body portion 21 to extend out of the upper surface 11, and The pressure receiving portion 221 of the second body portion 22 extending upward. The second main body portion 22 is fixed in the terminal groove 10, the pressure receiving portion 221 is located below the elastic arm 211, and the first and second main body portions 21, 22 are spaced apart from each other and face each other. A connection bridge 23 is integrally connected between the two. When the chip module is pressed down, the elastic arm 211 moves downward and presses against the pressed portion 221 to form electrical conduction. The pressure-receiving portion 221 extends obliquely upward from the upper end of the second main body portion 22, and the pressure-receiving portion 221 extends away from the first main body portion 21. A lower end of the second main body portion 22 extends downward. The ball portion 222 is soldered to the circuit board through a solder ball 3. As can be seen from the sixth and seventh figures, in this embodiment, the pressure receiving portion 221 protrudes from the upper surface 11, and the ball planting portion 222 protrudes from the lower surface 12.

As shown in the fourth to fifth figures, the opposite sides of the connecting bridge 23 are respectively bent and extended from the side edges of the second body portion 22 and the first body portion 21. In this embodiment, The opposite sides of the connection bridge 23 are respectively bent and extended from the same side edges of the second body portion 22 and the first body portion 21 so that the conductive terminal 2 is bent in a "匸" shape. Settings. The elastic arm 211 includes an inclined portion 2110 extending obliquely upward from an upper end of the first main body portion 21 and an arc-shaped contact portion 2111 that is bent upward and then reversely bent from the inclined portion 2110. The portion 221 abuts at a boundary between the contact portion 2111 and the inclined portion 2110. Referring to the sixth and seventh figures, when the elastic arm 211 is pressed against the pressure receiving portion 221, the inclined portion 2110 of the elastic arm 211 is further bent due to the pressure, and the contact portion 2111 and the inclined The boundary of the portion 2110 will slide along the pressure receiving portion 221 to provide a supporting force, so as to prevent the inclined portion 2110 from being excessively deformed due to pressure, to prevent the conductive terminal 2 from losing elasticity, and to extend the service life of the conductive terminal 2 . When the conductive terminal 2 of the electrical connector 100 is docked, its elastic arm 211 elastically abuts against the pressure receiving portion 221 at the upper end of the second main body portion 22 which is vertically arranged, and the ball planting portion 222 at the lower end of the second body portion 22 is directly welded. To the circuit board, that is, when the elastic arm 211 presses against the pressure receiving portion 221, a conductive path extending substantially vertically is formed between the chip module and the circuit board. Compared with a conventional elastic terminal that can only transmit current through a curved long-arm shaped elastic arm, the conductive terminal 2 of the present invention can shorten the current path between the chip module and the circuit board to a certain extent and improve the conductivity The high-frequency characteristics of the terminal 2 improve the transmission rate of the conductive terminal 2 and improve the high-frequency performance of the electrical connector 100.

As shown in FIGS. 4 to 8, the connecting bridge 23 includes a third body portion 230 extending in the up-down direction, and is bent and extended from one side of the third body portion 230 to be connected to the third body portion 230. The first connection portion 231 of the first body portion 21 and the second connection portion 232 bent and extended from the other side of the third body portion 230 to be connected to the second body portion 22. The second body portion 22 includes barbs 220 extending to both sides and used to be held to an inner wall surface (not shown) of the terminal slot 10. In this embodiment, in the vertical direction, a position of the first connection portion 231 is lower than a position of the second connection portion 232, and the second connection portion 232 is located above the barb 220.

As shown in FIGS. 5 to 9, the third body portion 230 has an upper edge 2301 connected to a terminal strip 4. The upper edge 2301, the barb 220, and the elastic arm 211 are respectively provided on the connection. The bridge 23, the second body portion 22, and the first body portion 21 are respectively located on different planes. In this embodiment, a thickness direction of the second main body portion 22 is defined as a front-rear direction, a lateral extension direction of the second main body portion 22 is defined as a lateral direction, and the first main body portion 21 and the second The main body portion 22 is disposed at intervals in the front-rear direction, the first main body portion 21 and the second main body portion 22 are parallel to each other in the lateral direction, and a plane where the third main body portion 23 is located is parallel to the front-back direction. The directions are parallel. The upper edge 2301, the barb 220, and the elastic arm 211 are independent and do not affect each other. A customized conductive terminal 2 can be designed for different chip modules and circuit boards, and will not be caused by different circuit layouts. The trouble of adjusting one of them to affect the other two has more possibilities in design.

The side edges of the first main body portion 21 and the second main body portion 22 of the electrical connector 100 of the present invention are integrally connected through the connecting bridge 23, which can facilitate one-time stamping and forming of the conductive terminal 2, and then the conductive terminal 2 is described as "匸" "" Is bent to form a configuration in which the first and second body portions 21 and 22 are spaced apart from each other and the elastic arm 211 is located above the pressure receiving portion 221. When the elastic arm 211 abuts against the pressure The portion 221 can form a conductive path extending substantially vertically in the conductive terminal 2, which can improve the high-frequency characteristics of the conductive terminal 2 and increase the transmission rate of the conductive terminal 2. The third main body portion 230 of the connection bridge 23 further has an upper edge 2301 connected to the terminal strip 4, so that the upper edge 2301, the barb 220, and the elastic arm 211 are respectively provided on the connection bridge 23, The two main body portions 22 and the first main body portion 21 are respectively located on different planes. This design can make the conductive terminal 2 suitable for connecting different chip modules and circuit boards, thereby making the design of the conductive terminal 2 more flexible.

The above description is only part of the embodiments of the present invention, not all of the embodiments. Any equivalent changes to the technical solutions of the present invention by those skilled in the art by reading the description of the present invention are covered by the claims of the present invention .

1‧‧‧Insulated body

220‧‧‧ barb

10‧‧‧Terminal Slot

221‧‧‧Pressed section

100‧‧‧electrical connector

222‧‧‧ Ball Planting Department

11‧‧‧ top surface

23‧‧‧ connecting bridge

12‧‧‧ lower surface

230‧‧‧Third main body

2‧‧‧ conductive terminals

2301‧‧‧top edge

21‧‧‧First body

231‧‧‧First connection

211‧‧‧elastic arm

232‧‧‧Second connection section

2110‧‧‧ Inclined

3‧‧‧ solder ball

2111‧‧‧Contact

4‧‧‧Terminal strip

22‧‧‧Second main body

The first diagram is a perspective view of the electrical connector of the present invention;

The second figure is a partial exploded view of the electrical connector shown in the first figure;

The third diagram is a partially exploded view of the electrical connector shown in the first diagram at another angle;

The fourth diagram is a perspective view of the conductive terminal shown in the second diagram;

The fifth figure is another perspective view of the conductive terminal shown in the fourth figure;

The sixth figure is a sectional view taken along line VI-VI in the first figure;

The seventh diagram is a cross-sectional view of the electrical connector shown in the first diagram along the VI-VI line when the conductive terminal is pressed;

Figure 8 is a perspective view of the conductive terminal shown in Figure 4 when the terminal strip is connected; and

The ninth figure is the electrical connector shown in the first figure, wherein the conductive terminal is connected with a terminal strip.

no

Claims (10)

An electrical connector for mounting on a circuit board to electrically connect a chip module includes: An insulating body having opposite upper and lower surfaces and a terminal groove penetrating the upper and lower surfaces; and The conductive terminal is housed in the terminal slot. The conductive terminal includes a first body portion and a second body portion extending in the up-down direction, and is bent upward from the upper end of the first body portion to extend out of the upper surface. An elastic arm and a pressure receiving portion extending upward from the second body portion, the second body portion is fixed in a terminal slot, and the pressure receiving portion is located below the elastic arm; Wherein, the first and second main body portions are spaced apart from each other and are integrally connected with each other, a connecting bridge is integrated. When the wafer module is pressed down, the elastic arm moves downward and presses against the The pressured portion to form electrical conduction. The electrical connector according to item 1 of the scope of patent application, wherein the pressure-receiving portion extends obliquely upward from the upper end of the second body portion, and the pressure-receiving portion extends away from the first body portion, the first The lower end of the two main body portions extends downward with a ball planting portion. The electrical connector according to item 2 of the scope of patent application, wherein opposite sides of the connection bridge are respectively bent and extended from the same side edges of the second body portion and the first body portion so that The conductive terminals are bent and arranged in a "匸" shape. The electrical connector according to item 3 of the scope of patent application, wherein the elastic arm includes an inclined portion that extends obliquely upward from the upper end of the first main body portion, and is bent upward from the inclined portion and then bent backward. The arc-shaped contact portion, the pressure receiving portion abuts at an interface between the contact portion and the inclined portion. The electrical connector according to item 4 of the scope of patent application, wherein when the elastic arm is pressed against the pressure receiving part, a conductive path extending substantially vertically is formed between the chip module and the circuit board . The electrical connector according to item 5 of the scope of patent application, wherein the connection bridge includes a third body portion extending in the up-down direction, and is bent and extended from one side of the third body portion to connect to the The first connection portion of the first body portion and the second connection portion bent and extended from the other side of the third body portion to be connected to the second body portion. The electrical connector according to item 6 of the scope of patent application, wherein the second body portion includes barbs extending to both sides and used to be held to the inner wall surface of the terminal slot. The electrical connector according to item 7 of the scope of patent application, wherein in the up-down direction, the position of the first connection portion is lower than the position of the second connection portion, and the second connection portion is located in the Barb above. The electrical connector according to item 7 of the scope of patent application, wherein the third body portion has an upper edge connected to a terminal strip, and the upper edge, the barb, and the elastic arm are respectively provided on the connection bridge, The second body portion and the first body portion are respectively located on different planes. The electrical connector according to any one of claims 6 to 9, wherein a thickness direction of the second body portion is defined as a front-rear direction, and a lateral extension direction of the second body portion is defined as In a lateral direction, the first main body portion and the second main body portion are disposed at intervals in the front-rear direction, and the first main body portion and the second main body portion are parallel to each other in the lateral direction, and the first The plane where the three main body portions are located is parallel to the front-rear direction.