CN2785183Y

CN2785183Y - Electric connector

Info

Publication number: CN2785183Y
Application number: CN 200520054314
Authority: CN
Inventors: 朱德祥
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2005-02-01
Filing date: 2005-02-01
Publication date: 2006-05-31
Anticipated expiration: 2015-02-01

Abstract

The utility model provides an electric connector, which comprises an insulation body, and a conductive terminal and a tin ball which are contained in the insulation body, wherein the insulation body is provided with a plurality of tin ball containing holes which can contain the tin ball. The tin ball containing hole is provided with a fixed structure which can prevent the tin ball from falling off and can cause the tin ball to float in the tin ball containing holes. The tin ball can freely float in the tin ball containing holes, and can carry out good electrical contact with a circuit board. When the circuit board is raised, the tin ball can also entirely adhere to the circuit board and the utility model has the advantages of easy fabrication and low cost.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers to a kind of electric connector that can fix better through improvement back tin ball especially.

[background technology]

The connected mode between CPU and the circuit board has two kinds usually on the computer at present: a kind of is directly to be welded on CPU on the circuit board, this mode is commonplace in early days, but because CPU is difficult for changing when adopting this mode, thereby be difficult to maintenance and upgrading, so be eliminated basically; Another kind is with a kind of electric connector 100 CPU200 and circuit board 300 to be coupled together indirectly, as shown in Figure 1, this electric connector 100 comprises insulating body 400 and some terminals 500 that is located in the insulating body 400, this terminal 500 is generally formed by the sheet metal punching out, have certain elasticity, these terminal 500 ends are bonded with tin ball 600, to be welded on the circuit board 300, the other end then bends certain angle, with CPU200 on conductive gasket (indicate) Elastic Contact.This mode can solve maintenance and the problem of upgrading; though but through repeatedly improvement; still there are many shortcomings; wherein comparatively significant disadvantages is: the coplanarity of these a plurality of tin balls is difficult to guarantee; the situation that often has electric connector and circuit board loose contact takes place; thereby CPU can not effectively be contacted with electric connector, influence the normal operation of computer.

Therefore, be necessary to design a kind of novel electric connector and remedy above-mentioned deficiency.

[summary of the invention]

The purpose of this utility model is to provide a kind of electric connector, and it can assurance and the good electric connection of chip module and circuit board, and easy to process, and cost is lower.

For achieving the above object, the utility model electric connector comprises insulating body, be contained in conducting terminal and tin ball in the insulating body, insulating body is provided with several the tin ball accommodation holes that can accommodate the tin ball, and this tin ball accommodation hole is provided with the fixed structure that can prevent that the tin ball from dropping and the tin ball is floated in tin ball accommodation hole.

Compared with prior art, the tin ball of the utility model electric connector can be in tin ball accommodation hole free floating, can electrically contact better with circuit board, and can be when the circuit board plate sticks up, the tin ball also can fully be attached at circuit board, and easy to process, and cost is lower.

[description of drawings]

Fig. 1 is a prior art electric connector schematic diagram.

Fig. 2 is the cutaway view of the utility model electric connector first embodiment.

Fig. 3 is the cutaway view of the utility model electric connector second embodiment.

Fig. 4 is the schematic diagram of the utility model electric connector second embodiment.

Fig. 5 is the cutaway view of the utility model electric connector the 3rd embodiment.

Fig. 6 is the cutaway view of the utility model electric connector the 4th embodiment.

[embodiment]

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

See also Fig. 2, the utility model electric connector comprises insulating body 1, conducting terminal 2, tin ball 3.

Insulating body 1 is provided with plurality of terminals holding tank 10, and plurality of conductive terminals 2 is contained in wherein, and insulating body 1 bottom is provided with tin ball accommodation hole 4, and tin ball 3 is contained in wherein.

Conducting terminal 2 comprises body 20, last contact jaw 21 and following contact jaw 22, last contact jaw 21 stretches out the upper surface 11 of insulating body 1, following contact jaw 22 stretches into tin ball accommodation hole 4, contact with tin ball 3, these tin ball accommodation hole 4 bottoms are provided with a projection 40, make the diameter of the distance of 40 of the end 220 of following contact jaw 22 of conducting terminal 2 and tin ball accommodation hole 4 projections less than tin ball 3, make tin ball 3 can not drop, and tin ball accommodation hole 4 vertical directions have certain space, tin ball 3 can be floated in tin ball accommodation hole 4 the insides, thereby can guarantee better electrically contacting between tin ball 3 and circuit board (not drawing among the figure).

See also Fig. 3 to Fig. 4, be with the first embodiment difference: the following contact site end of conducting terminal 2 is crooked in tin ball accommodation hole 4, be provided with a hook part 23, the distance that hook part 23 and tin ball accommodation hole 4 projections are 40 is less than the diameter of tin ball 3, tin ball 3 equally also can float in tin ball accommodation hole 4 the insides, when circuit board generation plate stuck up, the tin ball also can fully attach on the circuit board 5.

Certainly, those skilled in the art also can prevent that the tin ball from dropping and fixed structure that the tin ball is floated is implemented as other structure according to foregoing in tin ball accommodation hole, terminal bending is provided with inside protuberance 24 (as Fig. 5) as the following contact site of conducting terminal 2, perhaps protuberance 24 ' (as Fig. 6) is established in punch forming, and make protuberance 24,24 ' and projection 40 between distance less than tin ball 3 diameters, or the like.

Claims

1. electric connector, comprise insulating body, be contained in conducting terminal and tin ball in the insulating body, insulating body is provided with several the tin ball accommodation holes that can accommodate the tin ball, it is characterized in that: this tin ball accepting hole is provided with the fixed structure that can prevent that the tin ball from dropping and the tin ball is floated in tin ball accommodation hole.

2. electric connector as claimed in claim 1 is characterized in that: tin ball accommodation hole bottom is provided with projection, and the conducting terminal end in tin ball accommodation hole and the distance between the projection are less than the tin bulb diameter.

3. electric connector as claimed in claim 2 is characterized in that: the conducting terminal end is provided with the hook part.

4. electric connector as claimed in claim 2 is characterized in that: the conducting terminal end is provided with protuberance, and the distance between protuberance and the projection is less than the tin bulb diameter.