TWM587838U - Electrical connector - Google Patents

Abstract

An electrical connector for electrically connecting a circuit board and a chip module includes an insulating body having a plurality of terminal slots and a plurality of conductive terminals correspondingly accommodated in the terminal slots. The insulating body has opposite upper and lower surfaces The terminal slot penetrates the upper and lower surfaces. The conductive terminal includes an elastic arm. The elastic arm includes a main body portion extending up and down and upper and lower elastic arms respectively connected to the upper and lower ends of the main body portion. The conductive terminal further includes a spaced apart from the elastic arm. The fixed arm and the connecting bridge connecting the elastic arm and the fixed arm. The fixed arm is located between the upper and lower elastic arms and forms a gap with the upper and lower elastic arms. When the upper and lower elastic arms are deformed by the pressure of the chip module and the circuit board When it comes into contact with the fixed arm, it 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, in particular to an electrical connector for electrically connecting a circuit board and a chip module.

United States Patent No. US6824396B2 discloses an electrical connector for electrically connecting a circuit board and a chip module. The electrical connector includes an insulating body and conductive terminals that are held and extended from the upper and lower surfaces of the insulating body. The conductive terminals include The holding part and the upper and lower elastic arms respectively connecting the upper and lower ends of the holding part, the upper and lower elastic arms are respectively connected to a chip module and a circuit board, and the conductive terminals are connected when the chip module presses down the conductive terminals The chip module and the circuit board are electrically connected. Due to the current increasing requirements for the speed of transmitting high-frequency signals by electrical connectors, the upper and lower elastic arms of such conductive terminals have to be set to meet the demand. The curved long arm shape 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, it is necessary to provide an improved electrical connector to overcome the above drawbacks.

The technical problem to be solved by the new model is to provide an electrical connector, which can improve the high-frequency characteristics of the terminal and increase the transmission rate of the terminal.

In order to solve the above technical problems, the present invention provides an electrical connector for electrically connecting a circuit board and a chip module. The electrical connector includes an insulating body having a plurality of terminal slots and a plurality of one-to-one corresponding accommodations. In the conductive terminal in the terminal slot, the insulating body has opposite upper and lower surfaces, the terminal slot runs through the upper and lower surfaces, the conductive terminal includes an elastic arm, and the elastic arm includes an upper and lower extension. The main body portion and the upper and lower elastic arms respectively connected to the upper and lower ends of the main body portion, the conductive terminal further includes a fixed arm spaced from the elastic arm and a connecting bridge connecting the elastic arm and the fixed arm The fixed arm is located between the upper and lower elastic arms and forms a gap with the upper and lower elastic arms. When the upper and lower elastic arms are deformed by compression of the chip module and the circuit board, they can communicate with The fixed arm abuts.

Compared with the prior art, the new type has the following effects: when the conductive terminals of the new type of electrical connector are docked, the upper elastic arm and the lower elastic arm elastically abut against the fixed arm arranged vertically, which is not only beneficial to shortening the current of the conductive terminal Path, and can form two parallel conductive paths inside the conductive terminal, and can reduce the total impedance value, improve the high-frequency characteristics of the terminal, and increase the transmission rate of the terminal.

Please refer to the first to ninth figures. The novel electrical connector 100 is used to electrically connect a circuit board (not shown) and a chip module (not shown). The electrical connector 100 includes a plurality of electrical connectors 100. The insulating body 1 of the terminal slot 10 and a plurality of conductive terminals 2 received in the terminal slot 10 in a one-to-one correspondence. The insulating body 1 has an upper surface 11 and a lower surface 12 opposite to each other. Mentioned upper and lower surfaces 11,12. The conductive terminal 2 includes an elastic arm 21. The elastic arm 21 includes a main body portion 210 extending up and down, and an upper elastic arm 211 and a lower elastic arm 212 respectively connected to upper and lower ends of the main body portion 210. The upper elastic arm 211 And the lower elastic arm 212 are respectively used to achieve electrical connection with the chip module and the circuit board. The conductive terminal 2 further includes a fixed arm 22 spaced from the elastic arm 21 and a connecting bridge 23 connecting the elastic arm 21 and the fixed arm 22, and the fixed arm 22 is located on the upper and lower elastic arms 211, A gap is formed between 212 and the upper and lower elastic arms 211 and 212. When the upper and lower elastic arms 211 and 212 are deformed by the chip module and the circuit board, they will abut against the fixed arm 22. Pick up. The conductive terminal 2 has a top portion 201 extending from the upper surface 11, a bottom portion 202 opposite to the top portion 201 and extending from the lower surface 12, and two opposite side portions (not labeled).

Referring mainly to the fourth to eighth figures, the fixed arm 22 includes a support portion 220 extending up and down, and an upper arc arm 221 and a lower arc arm 222 connected to the upper and lower ends of the support portion 220, respectively. 211 may abut against the upper arc arm 221 when moving downward due to pressure, and may abut the lower arc arm 222 when the lower elastic arm 212 moves upward due to pressure, the connecting bridge 23 Extending from the side of the main body portion 210 and connected to the side of the supporting portion 220. The upper arm 211 includes a first bending portion 2111 that is bent and extended from an upper end of the main body portion 210 in a direction of the supporting portion 220 and continues from the first bending portion 2111 to the supporting portion 220. A horizontal portion 2112 extending in the direction of the second direction, a second bending portion 2113 extending upwardly from the horizontal portion 2112, a vertical portion 2114 continuing upwardly from the second bending portion 2113, and a vertical portion 2114 an upper contact portion 2115 bent in the direction of the support portion 220, and the top portion 201 is located on the upper contact portion 2115 and is electrically connected to the chip module. The lower elastic arm 212 includes a first bending portion 2111 that is bent and extended from a lower end of the main body portion 210 toward the supporting portion 220 and continues from the first bending portion 2111 to the supporting portion 220. A horizontal portion 2112 extending in the direction of the second direction, a second bending portion 2113 extending downward from the horizontal portion 2112, a vertical portion 2114 extending downward from the second bending portion 2113, and a vertical portion 2114 A lower contact portion 2116 bent by the straight portion 2114 in the direction of the support portion 220. The bottom portion 202 is located on the lower contact portion 2116 and is electrically connected to the circuit board.

The upper surface 11 of the insulating body 1 has an upper boss 110 protruding upward, the lower surface 12 of the insulating body 1 has a lower boss 120 protruding downward, and the upper elastic arm 211 protrudes upward. Said upper boss 110, said lower elastic arm 212 protrudes downward from said lower boss 120, said upper arc arm 221 is located between said upper surface 11 and said upper boss 110, said lower arc The arm 222 is located between the lower surface 12 and the lower boss 120. This arrangement facilitates the electrical connector 100 to fully contact the chip module and the circuit board to achieve stable electrical conduction. When the chip module is pressed against the electrical connector 100 downward, the upper and lower elastic arms 211 and 212 will be deformed due to the force and then electrically contact the fixed arm 22 until the chip The module and the circuit board come into contact with the upper and lower bosses 110 and 120 on the upper and lower surfaces 11 and 12 of the insulating body 1 respectively to stop deformation.

As shown in the third to ninth figures, the fixed arm 22 includes barbs 2201 extending from the support portion 220 along the width direction of the support arms 220 to both sides, and the barbs 2201 interfere with the insulating body 1. In order to fix the conductive terminal 2 into the terminal slot 10. The main body portion 210 and the support portion 220 are parallel to each other, the connection bridge 23 extends in a horizontal direction perpendicular to the up-down direction, and the connection bridge 23 is connected to a middle portion of the main body portion 210 and the support portion 220, respectively. In this way, the elastic arm 21 can achieve the maximum balance of the force when deformed. The upper arc arm 221 and the lower arc arm 222 of the fixed arm 22 extend obliquely from the upper and lower ends of the support portion 220 in a direction away from the elastic arm 21, respectively. In this embodiment, the upper elastic arm 211 and the lower elastic arm 212 of the elastic arm 21 are symmetrically disposed with the main body portion 210 as the center, and the upper arc arm 221 and the lower arc arm 222 of the fixed arm 22 are arranged in a symmetrical manner. The supporting portion 220 is symmetrically arranged at the center, which is beneficial to the symmetrical elastic deformation of the upper and lower elastic arms 211 and 212, and is beneficial to extending the service life of the conductive terminal 2.

Referring mainly to the eighth figure, when the upper arm 211 is pressed against the upper arc arm 221, the upper arm 211 slides along the upper arc arm 221 to provide a supporting force. When 212 presses against the lower arc arm 222, the lower elastic arm 212 slides along the lower arc arm 222 to provide a supporting force. Specifically, in this embodiment, when the elastic arm 21 and the fixed arm 22 are in pressure contact, the first bending portions 2111 of the upper and lower elastic arms 211 and 212 are further bent due to the pressure, The vertical portions 2114 of the upper and lower elastic arms 211 and 212 slide along the shape of the upper and lower arc arms 221 and 222 to provide a supporting force, so as to prevent the first bending portion 2111 from being pressed due to pressure. Excessive deformation prevents the loss of elasticity of the conductive terminal 2 and can prolong the service life of the conductive terminal 2. As can be seen from the sixth figure, the main body portion 210 of the conductive terminal 2 and the support portion 220 extend vertically and vertically. The vertical arrangement can shorten the lateral width of the conductive terminal 2 and is beneficial to the electrical connector 100. miniaturization.

Continuing to refer to FIG. 8, when the chip module presses down the conductive terminal 2, the upper and lower elastic arms 211 and 212 are in contact with the upper and lower arc arms 221 and 222, respectively, and are respectively formed. A first conductive path through a chip module, an upper elastic arm 211, a fixed arm 22, a lower elastic arm 212, and a circuit board in order, and a second conductive path through a chip module in order , An upper elastic arm 211, a main body portion 210, a lower elastic arm 212, and a circuit board. The first and second conductive paths provided in parallel can reduce the total impedance value, improve the high-frequency characteristics of the conductive terminal 2, and increase the transmission rate of the terminal.

When the conductive terminal 2 of the novel electrical connector 100 is mated, the upper elastic arm 211 and the lower elastic arm 212 elastically abut against the upper and lower ends of the fixed arm 22 which is vertically arranged, as compared with the length which can only be bent. The traditional elastic terminal of the arm-shaped elastic arm transmitting current can shorten the current path between the chip module and the circuit board to a certain extent, and improve the high-frequency performance of the electrical connector; at the same time, it can also be used in conductive terminals. 2 forming two parallel conductive paths is beneficial to further reduce the total impedance value of the terminal, improve the high-frequency characteristics of the terminal, and increase the transmission rate of the terminal.

In summary, this new model has clearly met the requirements for new patents, and has filed a patent application in accordance with the law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments. The equivalent modifications or changes made by those familiar with the new technology with the help of the spirit of the new model should be covered by the following patent applications.

1‧‧‧Insulated body

2111‧‧‧First bend

10‧‧‧Terminal Slot

2112‧‧‧Horizontal

100‧‧‧electrical connector

2113‧‧‧The second bend

11‧‧‧ top surface

2114‧‧‧Vertical

110‧‧‧Boss

2115‧‧‧ Upper contact

12‧‧‧ lower surface

2116‧‧‧ Lower contact

120‧‧‧ under boss

212‧‧‧ Lower Arm

2‧‧‧ conductive terminals

22‧‧‧ fixed arm

201‧‧‧Top

220‧‧‧ support

202‧‧‧ bottom

2201‧‧‧Barb

21‧‧‧ Elastic Arm

221‧‧‧ Upper Arc Arm

210‧‧‧Main body

222‧‧‧Lower Arc Arm

211‧‧‧ Upper arm

23‧‧‧ connecting bridge

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

The second diagram is a perspective view of the electrical connector shown in the first diagram at another angle;

The third diagram is a partial exploded view of the electrical connector shown in the first diagram;

The fourth figure is a perspective view when the conductive terminals of the electrical connector shown in the third figure are not compressed;

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 figure is a perspective view of a conductive terminal of the electrical connector shown in the third figure when the conductive terminal is under pressure;

The eighth 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; and

The ninth figure is a sectional view taken along the line IX-IX in the first figure.

The following embodiments will further explain the present invention in conjunction with the above drawings.

Claims (10)

An electrical connector for electrically connecting a circuit board and a chip module includes:
The insulating body has opposite upper and lower surfaces and a plurality of terminal slots penetrating the upper and lower surfaces; and a plurality of conductive terminals are housed in the terminal slots one to one correspondingly, and the conductive terminals include elasticity. An arm, the elastic arm comprising a main body portion extending up and down and upper and lower elastic arms respectively connected to upper and lower ends of the main body portion;
The conductive terminal further includes a fixed arm spaced apart from the elastic arm and a connecting bridge connecting the elastic arm and the fixed arm. The fixed arm is located between the upper and lower elastic arms and is connected to the upper arm. A gap is formed between the lower elastic arms. When the upper and lower elastic arms are deformed by the chip module and the circuit board, they can abut against the fixed arms. The electrical connector according to item 1 of the scope of patent application, wherein the fixed arm includes a support portion extending up and down, and an upper arc arm and a lower arc arm connected to the upper and lower ends of the support portion, respectively. It can abut against the upper arc arm when moving downward due to pressure, and can abut the lower arc arm when moving downward due to pressure, and the connecting bridge is from the main body The side edge of is extended and connected to the side edge of the supporting portion. The electrical connector according to item 2 of the scope of patent application, wherein the upper elastic arm includes a first bent portion bent and extended from an upper end of the main body portion toward the support portion, and the first bent portion extends from the first bent portion. A horizontal portion in which the bending portion continues to extend in the direction of the support portion, a second bending portion in which the horizontal portion extends upward from the horizontal portion, a vertical portion in which the second bending portion continues to extend upward, and The upper contact portion in which the vertical portion is bent in the direction of the support portion. The electrical connector according to item 3 of the scope of patent application, wherein the lower elastic arm includes a first bent portion bent and extended from a lower end of the main body portion toward the support portion, and A horizontal portion in which the bent portion continues to extend in the direction of the support portion, a second bent portion in which the horizontal portion continues to bend downward, a vertical portion in which the second bent portion continues to extend downward, and A lower contact portion bent from the vertical portion in a direction of the support portion. The electrical connector according to item 4 of the scope of patent application, wherein the upper arc arm and the lower arc arm of the fixed arm respectively extend obliquely from the upper and lower ends of the support portion in a direction away from the elastic arm. The electrical connector according to item 5 of the scope of patent application, wherein the main body portion and the support portion are parallel to each other, the connection bridge extends along a horizontal direction perpendicular to the vertical direction, and the connection bridges are respectively connected to The middle portion of the main body portion and the support portion. The electrical connector according to item 2 of the scope of patent application, wherein the fixing arm includes barbs extending from the support portion along both sides of the support portion and extending toward both sides, and the barbs interfere with and cooperate with the insulating body to The conductive terminal is fixed in the terminal slot. The electrical connector according to item 5 of the scope of patent application, wherein when the upper arm is pressed against the upper arc arm, the upper arm will slide along the upper arc arm to provide a supporting force. When the lower elastic arm is pressed against the lower arc arm, the lower elastic arm slides along the lower arc arm to provide a supporting force. The electrical connector according to item 8 of the scope of patent application, wherein when the elastic arm is in contact with the fixed arm under pressure, the first bent portions of the upper and lower elastic arms are further bent due to the pressure. Fold, the vertical portions of the upper and lower elastic arms will slide along the shape of the upper and lower arc arms to provide support. The electrical connector according to any one of the scope of claims 1 to 9, wherein when the chip module is pressed down against the electrical connector, the upper and lower elastic arms are stressed due to force. Deformation occurs and then comes into electrical contact with the fixed arm until the chip module and the circuit board are in contact with the upper and lower surfaces of the insulating body, respectively, and the deformation stops.