CN201112656Y - electrical connector - Google Patents

Abstract

The utility model is an electrical connector, which can be used to electrically connect a chip module to a printed circuit board. It includes an insulating body, and the insulating body is composed of a plurality of insulating body units. A plurality of conductive terminals, wherein the two insulating body units are fixed as a whole through an external connecting piece, so as to facilitate the connection and fixation between the insulating body units.

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 (Land Grid array) electrical connectors are becoming more and more popular in the field of connectors, especially in mobile devices. As it is widely used, people's requirements for its input/output performance are also increasing, and it is necessary to provide a large number of conductive terminals to achieve signal transmission with the printed circuit board. But this brings a series of problems. A larger number of conductive terminals will lead to an increasing volume of the electrical connector, and its structure will become more complicated, and it will take up more space on the circuit board. This is contrary to the development trend of miniaturization of electronic components. At the same time, the industry generally believes that the plastic shrinkage of the insulating body and the thermal deformation of the printed circuit board produce a combination tolerance. This tolerance makes the conductive terminal and the corresponding soldering piece on the printed circuit board unable to be well connected. Therefore, the electrical performance of the electrical connector There is a risk that conduction may fail. US Publication No. 6679707 patent is an electrical connector that solves the above problems.

FIG. 1 shows an electrical connector 10 related to the present invention, which is used to electrically connect a chip module (not shown) to a printed circuit board (not shown). The electrical connector 10 includes a plurality of insulating body units 7 , a plurality of conductive terminals (not shown) accommodated in the insulating body units 7 , and an insulating frame 8 fixing the plurality of insulating body units 7 . Wherein the insulating frame body 8 is made up of several transverse ribs, and the upper surface of the transverse ribs is provided with several pillars 82, and the insulating body unit 7 is provided with several holes 71. When assembling, insert the plurality of pillars 82 of the insulating frame body 8 into the holes of the insulating body unit 7 71 , several insulative body units 7 are assembled through the interference fit of the holes 71 and the posts 82 .

The structure of the electrical connector 10 can not only provide more conductive terminals, but also solve various problems caused by its excessive volume because the insulating body is divided into several insulating body units 7 . But this structure of this connector 10 is about to divide the insulating body into several insulating body units 7, and each unit and the insulating frame body 8 cooperate with the pillar 82 through the hole 71 to realize this structure of its combination. The insulating frame body 8 matched with the main body increases its manufacturing process, which also increases the manufacturing cost.

In view of this, it is necessary to provide an improved electrical connector to overcome the above-mentioned defects of the electrical connector.

【Content of utility model】

The technical problem solved by the utility model is to provide an electric connector with simple structure and reduced manufacturing cost.

In order to solve the above technical problems, the utility model provides an electrical connector, which can be used to electrically connect the chip module to the printed circuit board. It includes an insulating body, and the insulating body is composed of several insulating body units. The base body accommodates a plurality of conductive terminals, wherein the plurality of insulating body units are fixedly connected as a whole through external connectors.

In order to solve the above problems, the utility model also provides an electrical connector that can be used to electrically connect the chip module and the circuit board, which includes an insulating body, and the insulating body is composed of several insulating body units, and each insulating body unit is provided with a base , a number of conductive terminals are accommodated in the base body, the base body is provided with a mounting surface and a docking surface opposite to the mounting surface, wherein the two insulating body units are fixed as a whole by an external connecting piece, and the upper surface of the external connecting piece is higher than The abutting surface of the insulated body unit is lower than the abutting surface where the conductive terminal contacts the chip module. Compared with the prior art, the utility model has the following advantages: several insulated body units are directly connected and fixed through external connectors without the need for matching insulated frames, making the structure simple and reducing the manufacturing cost. When the insulating body is assembled on the circuit board, each insulating body unit will not be affected by other insulating body units, and is easy to disassemble.

【Description of drawings】

FIG. 1 is an exploded perspective view of a conventional electrical connector.

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

Fig. 3 is a perspective view of the electrical connector of the present invention.

FIG. 4 is a perspective view of another viewing angle of the electrical connector shown in FIG. 3 .

【Detailed ways】

Please refer to Figures 2 to 4, the utility model is an electrical connector for achieving electrical connection between a chip module (not shown) and a circuit board (not shown), which includes an insulating body 2 for accommodating A number of conductive terminals 3 inside the insulating body.

The insulating body 2 is roughly rectangular, with a hollow in the center. The insulating body 2 is composed of four insulating body units 20, 21, 22, 23. Each insulating body unit has the same structure and can be manufactured by the same mold. Since each insulating body unit has the same structure, the structure of the insulating body unit 20 is now described, which includes a base body 201, each base body is roughly rectangular, and it is provided with a mounting surface 206 installed on the circuit board, and a mounting surface 206 opposite to the mounting surface 206. The mating surface 205 and a plurality of terminal receiving grooves (not labeled) extending from the mating surface 205 to the installation surface 206 accommodate the conductive terminals 3 . A recess 207 is formed at the intersection of two sides of the base body 201 , and a continuous sidewall 202 is formed on the other two sides thereof. Both side ends of the recess 207 are provided with a connecting portion 204, and the connecting portion 204 is provided with a perforation 208 for accommodating an additional connector 4, and the additional connector 4 fixes the two insulating body units through the perforation 208. as a whole.

The external connecting piece 4 can be made of metal or plastic, and it includes a joint part 41 and two columns 42 extending from one side of the joint part 41 . The insulated body units are formed by riveting and fixing external connectors 4 . When the upper surface of the additional connector 4 is higher than the butt surface 205 of the insulating body unit and lower than the contact surface where the conductive terminal 3 contacts the chip module, the additional connector 4 can also play a supporting role to avoid chip module When in contact with the conductive terminal, its downward pressure will cause warpage and deformation to the chip module and the transitional downward pressure on the conductive terminal 3 will cause deformation.

When assembling, the insulating body unit of the electrical connector of the present invention is connected and fixed into a whole insulating body 2 through the external connector 4, and then it is placed on the circuit board, and the chip module is placed on the docking surface 205 of the insulating body 2 , the chip module is electrically connected to the circuit board through the conductive terminal 3 .

The insulating body 2 of the electrical connector of the utility model is directly fixed by combining the external connector 4. Compared with the electrical connector 10 in the background art, it does not require an insulating frame 8, which reduces the components of the electrical connector and reduces the Manufacturing cost, and at the same time, due to the use of additional connectors 4 for fixing, each insulating body unit is not affected by other insulating body units when installed on the circuit board, and can also be reassembled when the assembly fails.

The above are only preferred implementations of the utility model, and any improvements made on the basis of this implementation should not deviate from the technical solution of the utility model.

Claims (8)

1. electric connector, can be used for electrically connecting the wafer module to printed circuit board (PCB), it comprises insulating body, insulating body is made up of some insulating bodies unit, each insulating body unit is provided with matrix, contain plurality of conductive terminals in the matrix, it is characterized in that: be fixing as a whole between the two insulating body unit by adding connector.

2. electric connector as claimed in claim 1 is characterized in that: described insulating body unit is roughly rectangular, intersects end in its dual-side and is provided with notch.

3. electric connector as claimed in claim 2 is characterized in that: the described dual-side end that is provided with notch is provided with connecting portion.

4. electric connector as claimed in claim 3 is characterized in that: described insulating body unit is provided with continuous side walls in its other dual-side.

5. electric connector as claimed in claim 3 is characterized in that: described connecting portion is provided with accommodates the perforation that adds connector.

6. electric connector as claimed in claim 1 is characterized in that: the described connector that adds is a riveting spare.

7. electric connector as claimed in claim 2 is characterized in that: described riveting spare comprises joint portion and at least two cylinders that one side is extended from the joint portion.

8. electric connector, can be used for electrically connecting the wafer module to printed circuit board (PCB), it comprises insulating body, insulating body is made up of some insulating bodies unit, each insulating body unit is provided with matrix, plurality of conductive terminals is contained in the matrix, matrix is provided with installed surface and the interface relative with installed surface, described conducting terminal extends interface, it is characterized in that: fixing as a whole by adding connector between the two insulating body unit, the described upper surface that adds connector is higher than the interface of insulating body unit and is lower than conducting terminal and the contacted contact-making surface of wafer module.

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