CN2718822Y

CN2718822Y - Electric connector

Info

Publication number: CN2718822Y
Application number: CNU2004200461531U
Authority: CN
Inventors: 朱德祥
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2004-05-26
Filing date: 2004-05-26
Publication date: 2005-08-17
Anticipated expiration: 2014-05-26

Abstract

The utility model discloses an electric connector, comprising an isolation body, a plurality of conductive terminals fixed in the isolation body and tin balls. The end of each terminal is provided with a fixing part, through which the tin ball is clamped and fixed by two corresponding terminals or a terminal and the isolation body. Compared with the prior art, the electric connector of the utility model can not only guarantee the reliable fixation of the tin ball, but also have the advantages of simple preparing process and lower cost.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, especially a kind of electric connector with tin ball.

[background technology]

At present, industry generally removes to connect chip module (or other electronic building brick) and circuit board with electric connector, makes it reach effective electric connection.Electric connector generally all comprises insulating body and is located in the interior conducting terminal of insulating body that an accepting groove of general insulating body is accommodated a conducting terminal.As shown in Figure 1, electric connector 1 is used for electrically connecting chip module (figure does not draw) and circuit board 9, include insulating body 12, be contained in plurality of conductive terminals 13 and tin ball 14 in the exhausted insulating body 12, wherein be provided with some accepting grooves 121 in the insulating body 12, each accepting groove 121 is accommodated a conducting terminal 13, insert in the tin ball 14 lower end of conducting terminal 13, by being heated to uniform temperature, tin ball 14 is connected together with terminal 13, conducting terminal 13 compresses mutually with chip module and contacts, and the bottom of tin ball is welded on the circuit board.Yet the defective of the prior art is that the fixedly palpus of tin ball is by welding sequence, and processing is trouble quite, and efficient is low and cost is higher.

Fig. 2 and the schematic diagram that Figure 3 shows that another kind of existing electric connector.In this electric connector 2, comprise insulating body 21, conducting terminal 22 and tin ball 23, wherein insulating body 21 is provided with some accepting grooves 211, each accepting groove 211 is accommodated a conducting terminal 22, conducting terminal 22 roughly is down " U " shape, its top is provided with guiding access 8 insertions of groove 221 for chip module (not drawing among the figure), end is provided with two welding arms 222 of opposing parallel, to contact with tin ball 23, come to be welded on the circuit board (not drawing among the figure) by tin ball 23, thus the electric connection of realization chip module and circuit board.This electric connector is fixed the interference of tin ball by accommodating cell wall portion, though this mode is welded fixing processing simply, fixing unreliable, this tin ball drops because of vibrations easily in transportation.

Thereby, be necessary to design a kind of novel electric connector, to overcome above-mentioned defective.

[summary of the invention]

The purpose of this utility model is to provide a kind of electric connector, and both convenient processing can guarantee the secure fixation of tin ball again.

The utility model electric connector comprises insulating body, is fixed in plurality of conductive terminals and tin ball in the insulating body, and each terminal ends is provided with fixed part, and a corresponding two-terminal or a terminal and insulating body grip this tin ball by fixed part.

Compared with prior art, the utility model electric connector can not only guarantee the secure fixation of tin ball, and easy to process, and cost is lower.

[description of drawings]

Figure 1 shows that the structural representation of existing electric connector.

Figure 2 shows that the cross-sectional schematic of another kind of existing electric connector.

Figure 3 shows that the schematic perspective view of terminal and tin ball in the electric connector shown in Figure 2.

Figure 4 shows that the cross-sectional schematic of the utility model electric connector.

Figure 5 shows that the schematic perspective view of terminal and tin ball in the electric connector shown in Figure 4.

Figure 6 shows that the cross-sectional schematic of second kind of embodiment of the utility model electric connector.

Figure 7 shows that the cross-sectional schematic of the third embodiment of the utility model electric connector.

Figure 8 shows that the schematic perspective view of terminal and tin ball in the electric connector shown in Figure 7.

Figure 9 shows that the cross-sectional schematic of the 4th kind of embodiment of the utility model electric connector.

Figure 10 shows that the cross-sectional schematic of the 5th kind of embodiment of the utility model electric connector.

Figure 11 shows that the cross-sectional schematic of the 6th kind of embodiment of the utility model electric connector.

[embodiment]

Below in conjunction with accompanying drawing the utility model electric connector is made and to further describe.

With reference to Fig. 4 and Fig. 5, the utility model electric connector 3 comprises insulating body 30 and is fixed in conducting terminal 31 and tin ball 32 in the insulating body 30, is used for electrically connecting chip module (figure does not draw) and circuit board (not drawing among the figure).

This insulating body 30 has the upper surface that is used for connecting chip module, is used for the lower surface of connecting circuit plate and the accepting groove 300 of some vertical perforations.This accepting groove 300 can be used to accommodate terminal 31 and tin ball 32.

Each terminal 31 roughly in the form of sheets, it comprises main part 310 and by the contact site 311 of main part 310 1 end diagonally extendings, adjacent end is provided with hole 312 on this main part 310.Be installed with two corresponding terminals 31 in each accepting groove 300, these two terminals 31 are positioned at accepting groove 300 both sides and opposite tilt, and a tin ball 32 is installed between two terminals 31, and tin ball 300 parts are positioned at hole 312.Because be provided with hole 312, these hole 312 lower edges can prop up tin ball 32, down come off to prevent tin ball 32, thereby make tin ball 32 fixing comparatively reliable.And adopt two terminals to come clamping tin ball, with respect to fixing the tin ball by the bending of a slice terminal, structure is comparatively simple, processes more convenient.

Please refer to Fig. 6, be different with the foregoing description, terminal 31 ' stretches out insulating body 30 ' lower surface in this electric connector 3 ', and its hole 312 ' is positioned at insulating body 30 ' below, like this, two terminals 31 ' in the same accepting groove have bigger elasticity, can be with tin ball 32 ' secure fixation more.

The fixed part that is used for fixing the tin ball on its terminal can adopt other multitude of different ways, as Fig. 7, shown in Figure 8, this terminal 4 can not established hole, but vertically extends a sidewall 41 in main body 40 free terminal both sides, thereby utilizes sidewall 41 and main body 40 with tin ball 42 secure fixation; Also can be as shown in Figure 9, these terminal 5 main bodys 50 free terminals further are bent to form bend 51, thus utilization bend 51 in opposite directions is with tin ball 52 secure fixation.

Certainly, also can utilize a terminal 60 with insulating body 61 tin ball 62 to be gripped as shown in figure 10, these terminal 60 contiguous free terminals be provided with hole 63, also can establish the structure of sidewall, bend or other energy secure fixation tin ball certainly.

In order to make the tin ball more firmly fixing, also can be as shown in figure 11, further on being positioned at the flank 71 of accepting groove 70, insulating body 7 is coated with sticker 72 (as red glue).

Claims

1. an electric connector comprises insulating body, is fixed in plurality of conductive terminals and tin ball in the insulating body, and it is characterized in that: each terminal ends is provided with fixed part, and a corresponding two-terminal or a terminal and insulating body grip this tin ball by fixed part.

2. electric connector as claimed in claim 1 is characterized in that: this terminal ends is stretched out the insulating body lower surface, and its fixed position is in the insulating body below.

3. electric connector as claimed in claim 1 or 2 is characterized in that: described fixed part is the hole on the terminal.

4. electric connector as claimed in claim 1 or 2 is characterized in that: described fixed part is that terminal ends both sides approximate vertical is extended the sidewall that forms.

5. electric connector as claimed in claim 1 or 2 is characterized in that: described fixed part is that terminal ends further is bent to form bend.

6. electric connector as claimed in claim 1 or 2 is characterized in that: this insulating body is provided with some accepting grooves, and each terminal system is fixed in the accepting groove, and this insulating body is provided with flank in accepting groove, is coated with sticker on this flank.