CN201266781Y - 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 conductive terminals include a base and a first elastic part extending from one end of the base. A first contact portion is provided at the end of the elastic portion for electrically connecting the printed circuit board, and a third contact portion is provided at a position close to the first contact portion of the first elastic portion. When the first contact part of the conductive terminal falls into the via hole on the printed circuit board and cannot be electrically connected to the printed circuit board, the third contact part can still be electrically connected to the printed circuit board, effectively ensuring the entire electrical connection The contact quality of the device.

Description

electrical connector

【Technical field】

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

【Background technique】

LGA/LGA (Land Grid Array) type electrical connector is to use the contact method to realize the electrical connection between the electrical connector and the chip module and the printed circuit board. A conventional electrical connector includes an insulating body and a plurality of conductive terminals. The conductive terminal includes a base, a first elastic portion extending upward from one end of the base, and a second elastic portion extending downward from the other end of the base. The end of the first elastic part is provided with a first contact part to realize electrical connection with the chip module, and the end of the second elastic part is provided with a second contact part to realize electrical connection with the printed circuit board. In order to increase the contact reliability of the conductive terminal, a conductive terminal with double contact points has been developed in the industry. The conductive terminal includes a base, a pair of parallel first elastic parts extending upward from one end of the base, and a pair of parallel second elastic parts extending downward from the other end of the base. The end of each first elastic part is provided with a first contact part to realize electrical connection with the chip module, and the end of each second elastic part is provided with a second contact part to realize electrical connection with the printed circuit board.

However, since the via holes are provided on the printed circuit board, when the conductive terminal is electrically connected to the printed circuit board, due to the poor position of the conductive terminal, it is easy to cause the contact part to fall into the via hole and the electrical connection with the printed circuit board cannot be realized. The connection phenomenon affects the contact quality of the entire electrical connector.

Therefore, it is necessary to design a new electrical connector to overcome the above-mentioned defects of the electrical connector.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector, which can effectively ensure the electrical connection quality between the electrical connector and the printed circuit board.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an electrical connector for electrically connecting the chip module to the printed circuit board, which includes an insulating body and a plurality of conductive terminals, the conductive terminals include a base and extend from one end of the base The end of the first elastic part is provided with a first contact part for electrically connecting the printed circuit board, and the first elastic part is provided with a third contact part near the first contact part.

Compared with the prior art, the electrical connector of the utility model has at least the following advantages: the first elastic part of the conductive terminal is provided with a third contact part near the first contact part for electrically connecting the printed circuit board. When the positive position is not good so that the first contact part falls into the via hole on the printed circuit board and cannot be electrically connected to the printed circuit board, the third contact part can still be electrically connected to the printed circuit board, effectively ensuring The contact quality of the entire electrical connector.

【Description of drawings】

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

Fig. 2 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 3 is a perspective view of the electrical connector of the present invention when it is electrically connected to a printed circuit board.

【Detailed ways】

As shown in FIGS. 1 , 2 , and 3 , the electrical connector 100 of the present invention is used to electrically connect a chip module (not shown) to a printed circuit board 3 , and includes an insulating body 2 and a plurality of conductive terminals 1 .

The insulative body 2 is roughly in the shape of a cuboid. In this embodiment, only a part of the insulative body 2 is shown, which includes an upper surface 21 for receiving the chip module and a lower surface 22 mounted on the printed circuit board 3 . The upper surface 21 defines a plurality of terminal receiving grooves 211 penetrating through the lower surface 22 for receiving the conductive terminals 1 .

The conductive terminal 1 is accommodated in the insulating body 2, which includes a flat base portion 10, a holding portion 101 extending vertically from both ends of the base portion 10, a pair of second parallel electrodes extending upward from the base portion 10 The elastic portion 12 and a pair of first elastic portions 11 bent and extended downward from the base portion 10 are arranged parallel to each other. The end of the first elastic part 11 is provided with a first contact part 111 , and the end of the second elastic part 12 is provided with a second contact part 121 . A third contact portion 112 is disposed near the first contact portion 111 on the first elastic portion 11 , and is located between the first contact portion 111 and the base portion 10 . In this embodiment, one side of the first elastic portion 11 is bent toward the direction of the printed circuit board 3 to form a third contact portion 112 . This does not constitute any limitation to the present invention, and the third contact portion 112 can also be designed in other molding methods according to actual needs. The holding portion 101 is provided with barbs 1011 that interfere with the insulating body 2 , so that the conductive terminal 1 is firmly positioned in the insulating body 2 .

After the conductive terminal 1 is assembled to the insulating body 2, a pair of first contact portions 111 and a pair of third contact portions 112 extend out of the lower surface 22 of the insulating body 2 and electrically connect to the conductive sheet 31 on the printed circuit board 3. The two contact portions 121 extend out from the upper surface 21 of the insulating body 2 to realize electrical connection with the chip module.

The key structure of the utility model is that: the first elastic part 11 of the conductive terminal 1 is provided with a third contact part 112 at a position close to the first contact part 111 for electrically connecting the printed circuit board 3. When the first contact portion 111 falls into the via hole (not shown) on the printed circuit board 3 and cannot be electrically connected to the printed circuit board 3, the third contact portion 112 can still be electrically connected to the printed circuit board 3. The connection can effectively guarantee the contact quality of the entire electrical connector 100.

It should be pointed out that the above description is only the best implementation mode of the utility model, not all implementation modes. Any equivalent changes adopted by those of ordinary skill in the art to the technical solution of the utility model by reading the specification of the utility model are all covered by the claims of the present invention.

Claims (6)

1. [claim 1] a kind of electric connector, be used to electrically connect the chip module to printed circuit board (PCB), it comprises insulating body and plurality of conductive terminals, conducting terminal comprises that base portion reaches from extended first elastic portion of base portion one end, the end of first elastic portion is provided with first contact site and is used to electrically connect printed circuit board (PCB), it is characterized in that: described first elastic portion is provided with the 3rd contact site near the position of first contact site.
2. [claim 2] electric connector as claimed in claim 1 is characterized in that: described the 3rd contact site is between first contact site and base portion.
3. [claim 3] electric connector as claimed in claim 1 is characterized in that: described conducting terminal comprises a pair of first elastic portion that is arranged in parallel.
4. [claim 4] electric connector as claimed in claim 3 is characterized in that: described a pair of first elastic portion is provided with extended the 3rd contact site of an outside bending respectively and is used to electrically connect printed circuit board (PCB).
5. [claim 5] electric connector as claimed in claim 1 is characterized in that: described conducting terminal also comprises a pair of from extended a pair of second elastic portion that is parallel to each other of the base portion other end.
6. [claim 6] electric connector as claimed in claim 5 is characterized in that: the end of described second elastic portion is provided with second contact site and is used to electrically connect the chip module.

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