CN201112663Y - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector, which is used to electrically connect a chip module to a printed circuit board. It includes an insulating body and a plurality of conductive terminals. The insulating body is roughly in the shape of a flat plate. Installed to the lower surface of the printed circuit board, the conductive terminals are accommodated in the receiving groove provided by the insulating body, which includes an elastic part with a contact part at the end, and the elastic part protrudes from the upper surface of the insulating body, and the insulating body is divided into approximately equal parts In the four regions of the font, the elastic parts of the conductive terminals in the two non-adjacent regions are arranged in pairs.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector capable of electrically connecting a chip module to a printed circuit board.

【Background technique】

A grid array (Land Grid Array, LGA) electrical connector is used to electrically connect a chip module to a printed circuit board, which includes an insulating body and conductive terminals, the insulating body is provided with a bottom wall and is extended from the bottom wall The side wall, the bottom wall and the side wall form a storage space for accommodating the chip module. The conductive terminal is provided with a holding part mounted on the insulating body, an elastic part and a welding part extending from the holding part, and the end of the elastic part is a contact part. After the conductive terminal is installed, its elastic part is exposed on the bottom wall and accommodated in the receiving space. The welding part is used for welding to the printed circuit board. When the chip module is assembled, it contacts with the contact part of the conductive terminal and squeezes the elastic part of the conductive terminal The electrical connection between the chip module and the printed circuit board is realized through the conductive terminals, and the elastic deformation of the elastic portion of the conductive terminals enables a better contact effect between the chip module and the conductive terminals.

However, due to this type of electrical connector, the elastic part of the conductive terminal is assembled in one direction. When the chip module is assembled, the conductive terminal is squeezed, and the elastic resistance generated by the elastic part will be correspondingly received, because the number of conductive terminals is increasing day by day. Therefore, the elastic resistance of the conductive terminals to the chip module increases, resulting in poor contact between the chip module and individual conductive terminals, which affects the contact quality of the entire connector.

Therefore, it is indeed necessary to further improve the lack of existing electrical connectors.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, which can reduce the elastic resistance of the conductive terminal to the chip module as a whole.

In order to achieve the above purpose, the utility model adopts the following technical means: an electrical connector for electrically connecting the chip module to the printed circuit board, including an insulating body and a conductive terminal, the insulating body is roughly flat, and it includes a receiving The upper surface of the chip module is mounted on the lower surface of the printed circuit board, and the conductive terminal is accommodated in the receiving groove provided by the insulating body, which includes an elastic part with a contact part at the end, and the elastic part protrudes from the upper surface of the insulating body. Divided into four areas of approximately equal Narita shape, the elastic parts of the conductive terminals in two non-adjacent areas are arranged in pairs.

Compared with the prior art, the utility model has the following advantages: the insulating body is divided into four areas of roughly equal Narita shape, and the elastic parts of the conductive terminals in the two non-adjacent areas are arranged in pairs, Therefore, the elastic resistance of the conductive terminals in the non-adjacent areas to the chip module will be offset due to the difference in its direction, which reduces the elastic resistance of the conductive terminals to the chip module as a whole, effectively ensuring that each A conductive terminal can achieve a good contact effect with the chip module.

【Description of drawings】

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

Fig. 2 is a perspective view of the conductive terminal of the electrical connector of the present invention.

【Detailed ways】

As shown in Figures 1 and 2, it is a preferred embodiment of the electrical connector of the present invention, which is used to electrically connect a chip module (not shown) to a printed circuit board (not shown), including an insulating body 1 And the conductive terminal 2, the insulating body 1 is roughly in the shape of a flat plate, which includes an upper surface (not shown) for receiving the chip module and a lower surface (not shown) installed on the printed circuit board. The terminal receiving groove (not shown) is used to accommodate the conductive terminal 2. The insulating body 1 is divided into four regions A, B, C, and D in roughly equal Narita shape. The conductive terminal 2 includes a holding portion 21, a self-holding portion 21 extended welding portion 23, a base portion 24 extended from the holding portion 21, an arm portion 25 extended from the base portion 24, and an elastic portion 22 extended from the arm portion 25. The end of the elastic portion 22 is a contact portion 221, and the holding portion 21 is extended with a barb 211 that interferes with the insulating body 1 to achieve the purpose of firmly positioning the conductive terminal 2. After the conductive terminal 2 is assembled, its elastic part 22 protrudes from the upper surface of the insulating body to achieve electrical connection with the chip module. The welding part 23 The lower surface of the insulating body is protruded for soldering to the printed circuit board, and the elastic parts 22 of the conductive terminals 2 in the area A and the area C are arranged in pairs, and at the same time, the elastic parts 22 of the conductive terminals 2 in the area B and the area D Arranged in pairs, in this embodiment, the included angle between the elastic part 22 of all the conductive terminals 2 and the connection line of the four regions is 45 degrees, which does not constitute any limitation to the utility model, and the above-mentioned included angle can be Any angle between 0° and 90° includes 0° and 90°. After the chip module is assembled, the conductive terminal 2 is squeezed, and the elastic part 22 of the conductive terminal is squeezed to generate an elastic resistance to the chip module accordingly. The elastic resistance generated by all conductive terminals 2 in area A to the chip module is defined as FA, the elastic resistance generated by all conductive terminals 2 in area B to the chip module is defined as FB, and the elastic resistance generated by all conductive terminals 2 in area C is defined as chip The elastic resistance generated by the module is defined as FC, and the elastic resistance generated by all conductive terminals 2 in area D to the chip module is defined as FD, because all conductive terminals 2 in area A are paired with all conductive terminals 2 in area C Arranged in different directions, so the elastic resistances FA and FC will be weakened due to the offset of the different directions. Similarly, the elastic resistances FB and FD will also be weakened due to the offset of the different directions. Therefore, the chip module is affected by the conductive terminals. The overall elastic resistance of 2 will be weakened, effectively ensuring that each conductive terminal 2 will achieve a good contact effect with the chip module.

The key structure of the utility model is that the insulating body 1 is divided into four areas of roughly equal Narita shape, the elastic parts 22 of the conductive terminals 2 in the two non-adjacent areas are arranged in opposite directions, and the chip module is subjected to The elastic resistance of the conductive terminal 2 will be offset due to the difference in direction, which reduces the elastic resistance of the conductive terminal 2 received by the chip module as a whole, effectively ensuring that each conductive terminal 2 can achieve good contact with the chip module. contact effect.

It should be pointed out that the above description is only one embodiment of the utility model, not all or the only implementation manner, any equivalent changes adopted by those of ordinary skill in the art to the technical solution of the utility model by reading the description of the utility model, All are covered by the claims of the present utility model.

Claims (3)

1. An electrical connector, which can be used to electrically connect a chip module to a printed circuit board. It includes an insulating body and a plurality of conductive terminals. The insulating body is roughly in the shape of a flat plate. On the lower surface of the circuit board, the conductive terminals are accommodated in the receiving groove provided by the insulating body, which includes an elastic part with a contact part at the end, and the elastic part protrudes from the upper surface of the insulating body, and the insulating body is divided into approximately equal Narita-shaped The four regions are characterized in that: the elastic parts of the conductive terminals in two non-adjacent regions are arranged in pairs. 2. The electrical connector according to claim 1, wherein an angle is formed between the elastic portion of the conductive terminal and the connecting lines of the four regions of the insulating body. 3. The electrical connector according to claim 2, wherein the included angle is any angle between 0° and 90° including 0° and 90°.

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