CN201160136Y - electrical connector terminal - Google Patents

Abstract

The utility model relates to an electric connector terminal which is used for electrically connecting a chip module group to a circuit board and comprises a base part, a welded part formed by extending from one end of the base part, a fixing part formed by extending from the other end of the base part and an elastic trip which bends and extends out from one side of the fixing part. The elastic trip comprises a connecting part, a supporting part extending from the connecting part and an elastic part which bends and extends from the supporting par. The terminal end of the elastic part is provided with a contacting part. The tail end of the electric connector terminal is provided with a lead angle, so as to effectively prevent the electric connector terminal from hooking other articles to cause damage for the electric connector terminal.

Description

electrical connector terminal

【Technical field】

The utility model relates to an electric connector terminal, in particular to an electric connector terminal which can electrically connect a chip module to a printed circuit board.

【Background technique】

The LGA electrical connector is used to electrically connect the chip module to the printed circuit board. There is a sheet-shaped conductor on one side of the chip module. The LGA electrical connector generally has a thin plate-shaped insulating body, and the insulating body is set There is a conductive area, and electrical connector terminals arranged in a matrix are accommodated in the conductive area. An elastic part is provided, and a contact part is provided at the end of the elastic part. The elastic portion of the electrical connector terminal is elastically deformed and elastically abuts against the conductor of the chip module, so as to achieve electrical connection between the chip module and the printed circuit board.

As shown in Figure 1, it is an existing LGA terminal 9', which is used to electrically connect the chip module 4' to the printed circuit board 6', including a base 91', which is bent and extended downward from the base 91' The tail part 92' of the tail part 92' and the elastic part 93' bent and extended upward from the base part 91', wherein the tail part 92' is soldered with solder balls 5' for electrical connection to the printed circuit board 6', and the end of the elastic part 93' is provided with The contact part 931' is used to electrically connect to the conductive sheet 41' on the chip module 4'. The contact part 931' is provided with an end part 932' downward, and the base part 91' is fixed to the terminal of the electrical connector insulating body 3' for receiving In the groove 30', in order to ensure the elasticity of the terminal 9', the terminal 9' is accommodated behind the terminal receiving groove 30' of the electrical connector, and its elastic part 93' protrudes a long distance from the surface of the electrical connector.

This type of electrical connector terminal has the following defects: because the elastic part 93' of the terminal 9' protrudes from the surface of the electrical connector for a long distance, the above-mentioned end part 932' is completely exposed outside the insulating body 3', and the electrical connection is transported. When using a device, the end 932' can easily catch other objects and cause damage to the terminal 9'.

Therefore, it is necessary to improve the existing electrical connector terminals to overcome the above-mentioned defects.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector terminal, which can effectively prevent the electrical connector terminal from being caught by other objects and causing damage to the electrical connector terminal.

In order to achieve the above purpose, the utility model adopts the following technical means: an electrical connector terminal, used to electrically connect the chip module to the printed circuit board, which includes a base, a soldering portion extending from one end of the base, and another terminal extending from the base. A holding part extending from one end and an elastic piece bent and extended from one side of the holding part. The elastic piece includes a connecting part, a supporting part extending from the connecting part and an elastic part bent and extending from the supporting part. A contact is provided at the end of the elastic part Department, the end of which is provided with a chamfer.

Compared with the prior art, the utility model has the following advantages: the tail end of the contact part of the electrical connector terminal is provided with a chamfer, which can effectively prevent it from catching other objects and causing damage to the electrical connector terminal.

【Description of drawings】

Fig. 1 is a perspective view of an electrical connector terminal related to the present invention assembled to an insulating body;

Fig. 2 is a perspective view of the electrical connection terminal of the utility model;

Fig. 3 is the front view of the electrical connector terminal of the present utility model;

Fig. 4 is a perspective view of the second embodiment of the electrical connector terminal of the present invention;

FIG. 5 is a perspective view of the terminal of the electrical connector shown in FIG. 4 assembled to the insulating housing.

【Detailed ways】

The utility model will be described in detail below in conjunction with specific embodiments. As shown in FIG. 2 , the electrical connector terminal 1 of the utility model is used to electrically connect a chip module (not shown) to a printed circuit board (not shown). It includes a base 11 , a holding portion 10 extending upward from the base 11 , a tail 12 bent downward from the base 11 , and an elastic piece 13 bent from one side of the holding portion 10 . The two sides of the base 11 are respectively provided with barbs 110, the elastic piece 13 includes a connecting portion 130, a supporting portion 132 extending in the vertical direction and an elastic portion 134 connected to one end of the supporting portion 132, wherein the connecting portion 130 is arc-shaped , the radian is approximately 90 degrees, and the supporting part 132 is vertically connected to the holding part 10 through the connecting part 130. Extended contact portion 1344, the extension portion 1340 can ensure that the terminal 1 has better elasticity when it is under pressure, please refer to Figure 3, the tail end (not marked) of the contact portion 1344 is provided with a chamfer 1346, transport and use In the case of an electrical connector, the chamfer 1346 can prevent the tail end of the contact portion 1344 from catching other objects and causing damage to the terminal.

As shown in FIG. 4 , it is a perspective view of the second embodiment of the electrical connector terminal 1 of the present invention. It is different from the first embodiment in that: the contact portion 1344 is bent and extends downwards to form a vertical elongated portion. 1345, the end of which is provided with a chamfer 1346. Please also refer to FIG. Wall, the barb (not shown) of the base 11 interferes with the side wall of the terminal receiving groove 24 to hold the electrical connector terminal 1 in the terminal receiving groove 24, and the tail portion 12 is welded with solder balls 5 and printed circuit board 4 electrical contacts. The insulating body 2 is provided with a raised strip 26 between two adjacent vertical rows of electrical connector terminals 1, and the elongated part 1345 of the electrical connector terminal 1 extends downwards below the upper surface of the raised strip 26, for transportation and use of electrical connections. When using the connector, the arrangement of the extension portion 1345 and the chamfer 1346 can effectively prevent the electric connector terminal 1 from being damaged due to catching other objects.

It should be pointed out that the above is only a better explanation of the utility model, and it does not constitute any limitation to the utility model. Anyone of ordinary skill in the art reads the specification of the utility model and adopts any equivalent to the technical solution of the utility model. Changes are covered by the claims of the present utility model.

Claims (6)

1. An electrical connector terminal for electrically connecting a chip module to a printed circuit board, comprising a base, a welding portion extending from one end of the base, a holding portion extending from the other end of the base, and one side of the holding portion The elastic sheet is bent and extended, the elastic sheet includes a connecting part, a supporting part extending from the connecting part, and an elastic part bent and extended from the supporting part, and a contact part is provided at the end of the elastic part, and it is characterized in that: the tail end of the contact part With chamfer. 2. The electrical connector terminal according to claim 1, wherein the connecting portion is arc-shaped. 3. The electrical connector terminal according to claim 1, wherein the plane where the support part is located is perpendicular to the plane where the base part is located. 4. The electrical connector terminal according to claim 1, wherein barbs are provided on opposite sides of the base. 5 . The electrical connector terminal as claimed in claim 1 , wherein the contact portion is bent and extended to form a vertical elongated portion. 6 . 6. The electrical connector terminal according to claim 5, wherein a chamfer is provided at the end of the extension portion.

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