CN201285911Y - Electric connector - Google Patents

Abstract

The utility model relates to an electrical connector, which includes an insulating body and a conductive terminal accommodated in the insulating body. The bottom wall of the insulating body protrudes downwards to form a plurality of positioning columns; wherein the positioning columns include separately arranged guide parts and buckle department. It can stably hold the electrical connector on the printed circuit board by means of the buckle part of the positioning column on the bottom wall of the insulating body, preventing the electrical connector from falling off the printed circuit board under improper use or external force or unplug.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector used for connecting chip modules.

【Background technique】

As disclosed in Chinese Utility Model Patent No. 2741214, the electrical connector is used to connect the chip module to the printed circuit board, which includes an insulating body and conductive terminals housed in the insulating body for connecting the chip module and the printed circuit board , the lower shell for accommodating the insulating body, the upper shell pivotally connected to one end of the lower shell, and the operating lever for fixing the upper and lower shells. Wherein, the lower surface of the insulating body extends downward to form a smooth cylindrical positioning column, and the protruding length of the positioning column is longer than the length of the conductive terminal protruding from the insulating body. Therefore, when the electrical connector is installed on the On the printed circuit board, the positioning posts will first enter the corresponding positioning holes on the printed circuit board to play a guiding role, which can avoid bending of the end of the conductive terminal and ensure accurate alignment of the conductive terminal and the printed circuit board.

However, the positioning post provided on the lower surface of the insulating body of the electrical connector in the prior art is a smooth cylinder. When it is matched with the corresponding positioning hole of the printed circuit board, it cannot provide the operator with a good insertion feel, and it is easy to cause the operator to over-insert. , thus causing the end of the conductive terminal to bend; on the other hand, because the positioning post is a smooth cylinder, the installation and cooperation between the electrical connector and the printed circuit board are not stable. In the case of improper use or external force, the electrical connector It is easy to fall off or pull out from the printed circuit board, thereby affecting the normal use of the electrical connector.

Therefore, it is necessary to improve the existing electrical connectors to overcome the shortcomings of the prior art.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector which can be stably held on a printed circuit board.

In order to achieve the above purpose, the utility model provides an electrical connector, which includes an insulating body whose bottom wall protrudes downward to form a plurality of positioning columns and conductive terminals accommodated in the insulating body; the positioning columns include separately arranged guides Department and buckle department.

Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: it can stably hold the electrical connector on the printed circuit board by means of the buckle part of the positioning post on the bottom wall of the insulating body, avoiding In the case of improper or external force, the electrical connector is easy to fall off or pull out from the printed circuit board.

【Description of drawings】

FIG. 1 is a perspective view of the electrical connector of the present invention assembled on a printed circuit board.

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

FIG. 3 is a perspective view from another direction of the electrical connector shown in FIG. 2 .

FIG. 4 is a front view of the electrical connector and the printed circuit board shown in FIG. 1 .

【Detailed ways】

Hereinafter, specific implementations of the electrical connector of the present invention will be described in detail with reference to FIGS. 1 to 4 . The electrical connector of the present invention is installed on a printed circuit board 2 for connecting a chip module (not shown), and mainly includes an insulating body 1 and a conductive terminal (not labeled) installed in the insulating body 1 .

The insulating body 1 is generally in the shape of a rectangle, and it includes a top wall 11 and a bottom wall 12 that are arranged oppositely. The two pairs of side walls 13 and the receiving portion 10 are formed with a number of terminal grooves (not labeled) corresponding to accommodate conductive terminals; wherein the above-mentioned opposite pair of side walls 13 are respectively provided with pick-and-place notches 131 for easy pick-and-place chip modules.

The four corners of the bottom wall 12 of the insulating body 1 are respectively provided with positioning posts 14, and the positioning posts 14 respectively include a guide portion 15 extending downward from the bottom wall 12 of the insulating body 1 and is arranged opposite to the guide portion 15. And the buckle parts 16 are spaced at a certain distance. In this embodiment, the guide part 15 is a semi-cylindrical hollow body. The outer side of the guide part 15 is provided with a convex rib 151 formed along its protruding direction. The hook portion 162 formed by stretching. At least one of the positioning posts is asymmetrically arranged relative to the other positioning posts, so as to avoid placing the electrical connector in a wrong direction when it is installed on the printed circuit board 2 .

When the electrical connector is installed on the printed circuit board 2, the positioning column 14 enters the positioning hole 21 of the printed circuit board 2 by the downward pressing force of the operator, and the aforementioned buckle part 16 elastically deforms in the positioning hole 21 and approaches When the guide part 15, when the hook 162 of the buckle part 16 protrudes out of the positioning hole 21 of the printed circuit board 2, the elastic deformation of the buckle part 16 ends, so that the operator feels a different insertion feel, and then prompts Operator installation is complete. When the installation is completed, the convex rib 151 of the guide part 15 is interference fit in the positioning hole 21 of the printed circuit board 2, and the hook part 162 of the buckle part 16 is buckled on the bottom of the printed circuit board 2, thereby preventing improper use Or when an external force intervenes, the electrical connector is separated from the printed circuit board 2 .

The height of the positioning columns 14 is greater than the height of the conductive terminals protruding from the bottom wall 12, so that when the electrical connector is installed on the printed circuit board 2, the positioning columns 14 will first enter the corresponding positioning holes 21 of the printed circuit board 2 In order to play the role of guidance and positioning, to avoid bending of the end of the conductive terminal.

Claims (6)

1. electric connector, it comprises the insulating body of the some reference columns of diapire downward projection formation and is contained in conducting terminal in the insulating body; It is characterized in that: described reference column comprises guidance part and the clamping part that separates setting.

2. electric connector as claimed in claim 1 is characterized in that: the guidance part of described reference column is the semi-cylindrical hollow body, and itself and buckle part are in same periphery.

3. electric connector as claimed in claim 2 is characterized in that: wherein said clamping part comprises body and is located at the trip that the body end can be held in the printed circuit board (PCB) bottom.

4. electric connector as claimed in claim 2 is characterized in that: outside the wherein said guidance part side be provided with can with the fin of the location hole interference engagement of printed circuit board (PCB).

5. electric connector as claimed in claim 1 is characterized in that: the rectangular structure of wherein said insulating body, some clamping parts are located at four corners of insulating body respectively

, wherein at least one is asymmetric setting with respect to other reference column.

6. as any described electric connector in the claim 1 to 5, it is characterized in that: the height of wherein said reference column stretches out the height of insulating body diapire greater than conducting terminal.

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