CN2669406Y

CN2669406Y - Electric connector

Info

Publication number: CN2669406Y
Application number: CNU032678940U
Authority: CN
Inventors: 曾贤臣
Original assignee: Individual
Current assignee: No 81 Haoting Road(west) Qifu Housing Estate Z
Priority date: 2003-07-24
Filing date: 2003-07-24
Publication date: 2005-01-05
Anticipated expiration: 2013-07-24

Abstract

The utility model discloses an electric connector, comprising an upper cover, a lower cover and a fixed base arranged between the upper cover and the lower cover. The front end of the upper cover is provided with a projected piece which can bunts to be connected to the inner surface of the lower cover. Compare with prior art, the upper cover of the electric connector can be tightly matched with the lower cover by the projected piece arranged on the front end of upper cover, which ensures the flatness of a tin ball when the electric connector is welded, so as to ensure the normal work of a computer.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, especially a kind of electric connector of installing CPU.

Background technology

The electric connector that is used to install CPU (central processing unit) on present a kind of computer as shown in Figures 1 to 3, this electric connector comprises loam cake 1, lower cover 2, place upper and lower covers 1, holder 3 between 2 and rocking bar 4, this upper and lower covers 1,2 are metal shell, and both can flexibly connect mutually, these lower cover 2 middle positions are provided with rectangular opening 5, when being packed into, holder 3 can partly protrude in lower cover 2, this lower cover 2 is provided with through hole 6 at the opposite side with loam cake 1 flexible connection, 1 pair of this loam cake should be provided with protrusion sheet 7 by through hole 6, this holder 3 comprises insulating body 8 and some terminals 9 and tin ball 82 that is located in the insulating body, this rocking bar 4 roughly is " L " type, it comprises canned paragraph 41 and rotation section 43, this canned paragraph 41 is provided with a kink 45 at the place, centre position, when this upper and lower covers 1,2 when being closure state, rotate this rocking bar 4, this kink 45 can prop up and protrude sheet 7, thereby this loam cake 1 and lower cover 2 are fixed together.When being soldered to this electric connector on the circuit board, the general Grasp Modes that adopts vacsorb, therefore for guaranteeing its accurate positioning, the upper and lower covers 1 of electric connector, 2,3 palpuses of holder cooperate closely, be difficult for loosening, the mode that reaches this purpose at present has two kinds, the one, loam cake 1 two side is butted on lower cover 2 upper surfaces, but this mode can make lower cover 2 be positioned at the pressure F2 effect of the tensile force f 1 at two ends and central authorities and easy buckling deformation (as shown in Figure 3), thereby influence the evenness of tin ball 82, cause electric connector and circuit board loose contact, or even do not contact, influence the normal operation of computer.Also have another kind of mode that loam cake is against on the insulating body, but this can cause the local deformation of insulating body, thereby also may influence the evenness of tin ball, make the effectively conducting of electric connector and circuit board, influence the normal operation of computer.

Summary of the invention

The purpose of this utility model is to provide a kind of electric connector, and it can guarantee the planarization of tin ball, thereby guarantees electric connector and circuit board welding reliability, guarantees the normal operation of computer.

For achieving the above object, the utility model electric connector comprises loam cake, lower cover, places the firm banking between the upper and lower covers, and this loam cake front end is provided with the protrusion sheet, and this protrusion sheet can be connected on the inner surface of lower cover.

Compared with prior art, the utility model electric connector loam cake front end is provided with the protrusion sheet, this protrusion sheet can be connected on the inner surface of lower cover and closely cooperate with lower cover by protruding sheet, thereby can guarantee the planarization of electric connector tin ball when welding, the operate as normal of assurance computer.

Description of drawings

Fig. 1 is the stereogram of existing electric connector.

Fig. 2 is the stereogram of existing electric connector lower cover.

Cutaway view when Fig. 3 fastens for existing electric connector.

Fig. 4 is the stereogram of the utility model electric connector.

Fig. 5 is the stereogram of the utility model electric connector lower cover.

Cutaway view when Fig. 6 fastens for the utility model electric connector.

Embodiment

Below in conjunction with accompanying drawing the utility model electric connector is further detailed.

Be the execution mode of the utility model electric connector as shown in Figs. 4-6, this electric connector comprises loam cake 10, lower cover 20, places holder 30 and rocking bar 40 between the upper and

lower covers

10,20, this upper and

lower covers

10,20 is metal shell, and both can flexibly connect mutually, and the distance between combination back loam cake 10 inner surfaces and lower cover 20 inner surfaces is greater than the height of holder 30.This loam cake 10 is at the opposite side that flexibly connects with lower cover 20, be that front end is provided with protrusion sheet 12, and extend downwards respectively in both sides and to be provided with two side 14, and there is a segment distance this two side 14 with lower cover 20 inner surfaces after the combination, these lower cover 20 middle positions are provided with rectangular opening 22, when being packed into, holder 30 can partly protrude in lower cover 20, this holder 30 comprises insulating body 32 and some terminals 34 and tin ball 36 that is located in the insulating body 32, this rocking bar 40 roughly is " L " type, it comprises canned paragraph 42 and rotation section 44, this canned paragraph 42 is provided with a kink 46 at the place, centre position, when upper and lower covers fastens, this kink 46 can will protrude the upper surface that sheet 12 is butted on lower cover 20, so that upper and lower covers is fixed together, because this protrusion sheet 12 is subjected to the holding power that the downward pressure of kink 46 and lower cover 20 make progress, so can make loam cake 10 and lower cover 20 be in the state of closely cooperating, be difficult for loosening, simultaneously, because the distance between loam cake 10 inner surfaces and lower cover 20 inner surfaces is greater than the height of holder 30, this loam cake 10 is in the process of being fastened, do not oppress holder 30, therefore can not make holder 30 distortion, thereby can not have influence on the evenness of tin ball 36; And there is a segment distance this two side 14 with lower cover 20 inner surfaces after the combination, make upper and lower covers can not produce interaction force in the middle position contact, and tensile force f 3 that lower cover 20 is suffered and the stress point of pressure F4 are separated by very near (as shown in Figure 6), thereby the moment that is produced is very little, can not make lower cover 20 buckling deformations, can not influence the evenness of tin ball 36 equally, thereby guarantee effective conducting of electric connector and circuit board, also just can guarantee the normal operation of computer.

Understand easily, the utility model is not limited to the kink of rocking bar the protrusion sheet of loam cake front end to be butted on the lower cover upper surface and reaches loam cake and the close-fitting purpose of lower cover, also can adopt alternate manner that the loam cake front end is closely cooperated and be fixed in lower cover, because the stress point of suffered pressure of lower cover and pulling force is all near the loam cake front end like this, the moment that is produced is very little, so can guarantee effective conducting of electric connector and circuit board equally.

Claims

1. electric connector, it comprises loam cake, lower cover, places the firm banking between the upper and lower covers, it is characterized in that: this loam cake front end is provided with the protrusion sheet, and this protrusion sheet can be connected on the inner surface of lower cover.

2. electric connector as claimed in claim 1, it is characterized in that: this electric connector further is provided with a rocking bar, this rocking bar comprises a rotation section and a canned paragraph, and there is a kink at its place, canned paragraph centre position, and this kink can be against on the inner surface of lower cover protruding sheet.

3. electric connector as claimed in claim 1 or 2 is characterized in that: the distance between this upper interior surface and the following interior surface is greater than the height of firm banking.

4. electric connector as claimed in claim 3 is characterized in that: these loam cake both sides extension downwards respectively are provided with the two side, and there is a segment distance this two side with following interior surface after the combination.

5. electric connector as claimed in claim 1 or 2 is characterized in that: these loam cake both sides extension downwards respectively are provided with the two side, and there is a segment distance this two side with following interior surface after the combination.