CN201113141Y - electrical connector - Google Patents

Abstract

The utility model discloses an electrical connector, which is used for electrically connecting a chip module to a printed circuit board. It includes an insulating body and a plurality of conductive terminals accommodated in the insulating body. The butt surface opposite to the installation surface has a slot in the center that runs through the butt surface and the installation surface, and a side wall is formed around the slot on the butt surface, wherein the top surface of the side wall is connected to form a support surface for supporting the chip module. To reduce the deformation of the chip module.

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】

Figure 1 shows a kind of electrical connector for electrically connecting chip module 3' to a printed circuit board (not shown) related to the utility model, which generally includes an insulating body 2', which is accommodated in the insulating body 2 A number of conductive terminals (not shown) in ' and a buckle (not shown) for fastening the chip module 3' to the insulating body 2', the buckle generally includes a bottom frame framed on the insulating body 2' 1. The pressure plate pivotally connected to the bottom frame and the lever for locking the bottom frame and the pressure plate.

The insulating body 2' is roughly rectangular, and an opening 21' is provided at the central position. The sidewall of the opening 21' extends upwards from the upper surface of the insulating body 2', and forms a wall surrounding the opening on the upper surface of the insulating body 2'. 21' of side walls 22'. The setting of the opening 21' can accommodate some components such as capacitors or resistors set on the circuit board, and the setting of the side wall 22' can support the chip module 3' and reduce the deformation of the chip module 3'.

Please refer to Fig. 2, the electrical connector of this structure has the following defects: because the contact area between the side wall 22' and the chip module 3' is small, and the center of the insulating body 2' is an opening 21', the central part No support surface is provided for supporting the chip module 3', so there is a risk of deformation of the chip module 3'.

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 which prevents the deformation of the chip module.

In order to solve the above technical problems, the utility model provides an electrical connector for electrically connecting the chip module to the printed circuit board, which includes an insulating body and a number of conductive terminals accommodated in the insulating body. The opposite mounting surface and the docking surface corresponding to the mounting surface have a slot running through the docking surface and the mounting surface in the center, and a side wall is formed around the slot on the docking surface, wherein the top surface of the side wall is connected to form a supporting chip The supporting surface of the module.

Compared with the prior art, the utility model has the following advantages: the top surface of the side wall is connected and arranged to form a closed or non-closed support surface to support the chip module. This arrangement not only reserves the electronic components on the circuit board The space increases, and the area and strength of the support surface supporting the chip module are increased, which can reduce the risk of deformation of the chip module.

【Description of drawings】

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

FIG. 2 is a schematic diagram of deformation of the chip module when the insulating body of the electrical connector shown in FIG. 1 is assembled with the chip module.

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 insulating body shown in FIG. 3 .

FIG. 5 is a schematic diagram of the assembly of the insulating body and the chip module of the electrical connector of the present invention.

【Detailed ways】

Please refer to Fig. 3 to Fig. 4, the utility model is an electrical connector for achieving electrical connection between a chip module 3 and a circuit board (not shown), which includes an insulating body 2 and is accommodated in the insulating body 2 Several conductive terminals (not shown) in and buckles (not shown) for buckling the chip module 3 on the insulating body 2 .

The insulating body 2 is a rectangular body, which has a docking surface 21 for receiving the chip module 3 and a mounting surface 22 opposite to the docking surface 21. The mounting surface 22 is opposite to the circuit board after installation. The insulating body 2 is also provided with an upwardly extending side wall 23 on the peripheral edge of the butt joint surface 21, and the side wall 23 and the butt joint face 21 are jointly defined as a receiving cavity (not labeled) for accommodating the chip module 3, wherein the The side of the side wall 23 facing the receiving cavity is called the inner side wall 231 , and the side opposite to the inner side wall 231 is called the outer side wall 232 .

The central part of the insulating body 2 is provided with a slot 24 extending from the mounting surface 22 to the docking surface 21. The side wall of the slot 24 extends upwards out of the docking surface 21 to form a circle of side walls 25 surrounding the slot 24. The side walls The top surface of 25 is connected to form a closed support surface 26 for supporting the chip module 3, and the slot 24 below the support surface 26 can be used to accommodate electronic components on the circuit board. Of course, the side walls 25 can also be connected by supporting ribs to form an unclosed supporting surface 26 , as long as they have a flat surface in common and can be used for supporting the wafer module 3 .

The insulating body 2 is provided with grooves (not labeled) on the adjacent two inner side walls 231, and elastic arms 233 are arranged in the grooves. In this embodiment, the elastic arms 233 are assembled in the side walls of the insulating body 2, which include The matching part 2331 matched with the side wall 23, the extension part 2332 extended from the matching part 2331 and the end of the extension part 2332 protrude from the abutting part 2333 of the inner side wall 231, and the abutting part 2333 faces the receiving cavity and is used to press the wafer mold Set 3, to position it more firmly in the containment cavity. Certainly, the elastic arm 233 can also be integrally provided with the side wall 23 . Protrusions 234 are also provided on the two opposite inner sidewalls 231 , and the protrusions 234 can cooperate with corresponding structures on the chip module 3 for identification and cooperation.

The butt joint surface 21 of the insulating body 2 is provided with a number of terminal receiving grooves (not labeled), which are provided with corresponding conductive terminals, and solder balls (not shown) are provided at the bottom of the conductive terminals, and the conductive terminals are welded to the circuit through the solder balls. board. The insulating body 2 is provided with several bumps 221 on its mounting surface 22, and the bumps 221 are distributed around the mounting surface 22. When the conductive terminals in the insulating body 2 are welded to the circuit board, the support of the bumps 221 can prevent the Solder balls are over-melted.

The insulative body 2 is also provided with a buckle for holding the chip module 3 in the insulative body 2. The buckle specifically includes a bottom frame framed on the periphery of the insulative body 2, a pressing piece pivotally connected to one end of the bottom frame, and a pivot joint. The lever at the other end of the bottom frame. When assembling, open the pressure piece and the lever, then put the chip module 3 into the storage cavity of the insulating body 2, and finally lock the pressure piece and the bottom frame together through the lever , so that the chip module 3 is fixed in the electrical connector 1 to realize the conduction between the chip module 3 and the electrical connector.

The utility model electrical connector has the following advantages: Please refer to FIG. 5, which is a schematic diagram of the assembly of the chip module 3 on the insulating body 2. First, due to the supporting surface 26 formed after the side wall 25 is connected and set, one of the On the one hand, the contact area abutting against the chip module 3 is increased, and on the other hand, the strength of the supporting surface 26 supporting the chip module 3 is increased, so the risk of deformation of the chip module 3 can be reduced; There is also space for accommodating electronic components on the circuit board, so it can be adapted to the structure of the circuit board.

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 (9)

1. electric connector, be used to electrically connect the wafer module to printed circuit board (PCB), it comprises insulating body, is contained in the plurality of conductive terminals in the insulating body, insulating body has the installed surface relative with circuit board and reaches and the corresponding interface of installed surface, its central authorities have the fluting that runs through interface and installed surface, form a circle side wall around fluting on the interface, it is characterized in that: the connection of side wall end face is provided with, and forms the supporting surface of supporting wafers module.

2. electric connector as claimed in claim 1 is characterized in that: described side wall is connected to the supporting surface of a sealing, with the supporting wafers module.

3. electric connector as claimed in claim 1 is characterized in that: described side wall connects into nonocclusive supporting surface by ribs, with the supporting wafers module.

4. electric connector as claimed in claim 1, it is characterized in that: described insulating body is roughly rectangular, its edge in interface is provided with upwardly extending sidewall, the common host cavity that forms of described interface and sidewall, described sidewall is a madial wall towards a side of host cavity, and relative with madial wall is lateral wall.

5. electric connector as claimed in claim 4 is characterized in that: adjacent two madial walls are provided with groove, are assembled with elastic arm in the described groove, and this elastic arm is in host cavity.

6. electric connector as claimed in claim 5 is characterized in that: described elastic arm comprises the auxiliary section that cooperates with the assembling of described sidewall, the abutting part that protrudes in described sidewall by the extension and the extension end of auxiliary section extension.

7. electric connector as claimed in claim 4 is characterized in that: adjacent two madial walls are provided with groove, extend in the groove to be provided with elastic arm.

8. electric connector as claimed in claim 5 is characterized in that: relative two madial walls are provided with projection.

9. electric connector as claimed in claim 1 is characterized in that: be provided with some projections around the described installed surface.

Images