CN2598176Y

CN2598176Y - Electric connector

Info

Publication number: CN2598176Y
Application number: CNU032235682U
Authority: CN
Inventors: 朱德祥
Original assignee: Jiaze Terminal Industry Co ltd; Lotes Guangzhou Co Ltd
Current assignee: Jiaze Terminal Industry Co ltd; Lotes Guangzhou Co Ltd
Priority date: 2003-02-13
Filing date: 2003-02-13
Publication date: 2004-01-07
Anticipated expiration: 2013-02-13

Abstract

The utility model relates to an electric connector consisting of an insulated body which is provided with a plurality of terminal containing grooves and a plurality of terminals inserted into the terminal containing grooves, the terminals are sideling arranged at the internal of the insulated body, the terminal is provided with a base and a contact arm and a support arm which are both extended from the both ends of the base, the top end of the contact arm is higher than the containing groove on the insulating terminal, and the contact arm is a compressed elastomer which ensures the good contact with the abutting joint electronic module, produces less electrical impedance and is good for the concentrating of the terminals and the miniaturization of electric connectors.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, refers in particular to the electric connector that a kind of terminal is oblique arrangement and can forms the elasticity of compression.

Background technology

Present and chip module roughly has two kinds with the contacted electric connector of compressing mode, as shown in Figure 1 a kind of, this electric connector comprises an insulating body 1 and some terminals 2 that is located in the insulating body 1, these terminal 2 lower ends are connected with a tin ball 3, electrically to contact with circuit board 4, its upper end is bent to form a contact site 5, to be connected with chip module 6.But this structure exists many defectives: the one, and termination contact portion 5 is little with chip module 6 contacts area, is easy to generate loose contact; The one, may cause fatigue rupture after contact site more than the 5 time bending and permanent deformation causes and can't correctly be connected with chip module 6; Moreover, for fear of overlapping mutually between terminals of adjacent, must reserve certain distance between this terminal, thereby be unfavorable for the miniaturization of the densification and the electric connector of terminal; At last, this electric connector electrical impedance is bigger.Second kind of electric connector structure as shown in Figure 2, this terminal 7 is roughly L-shaped, its upper end is provided with roughly curved contact site 8, though this structure can solve the problem of loose contact, but electrical impedance is still excessive, and still might produce permanent deformation and cause and can't correctly be connected with chip module 9, and in order to guarantee the intensity of this terminal, thereby must have bigger volume, so be unfavorable for the miniaturization of the densification and the electric connector of terminal.

Summary of the invention

The purpose of this utility model is to provide a kind of electric connector, to guarantee and to dock the electronic building brick excellent contact, produces less electrical impedance, and helps the miniaturization of the densification and the electric connector of terminal.

Electric connector provided by the utility model, comprise the insulating body and the some terminals that is inserted in this terminal containing slot that are provided with the plurality of terminals accepting groove, this terminal oblique arrangement is in insulating body, and this terminal is provided with a bottom and extends a contact arm and a support arm by the bottom to two ends, the contact arm top is higher than the accepting groove of isolation terminal, and can form elasticity of compression person, to guarantee and to dock the electronic building brick excellent contact, produce less electrical impedance, and help the miniaturization of the densification and the electric connector of terminal.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the assembling section of existing electric connector and chip module and circuit board.

Fig. 2 is the assembling section of another existing electric connector and chip module and circuit board.。

Fig. 3 is the assembling section of the utility model electric connector and chip module and circuit board.。

Fig. 4 is the stereogram of first kind of preferred embodiment terminal of the utility model.

Fig. 5 is the part sectioned view before first kind of preferred embodiment electric connector of the utility model and the chip module assembling.

Fig. 6 is the part sectioned view after first kind of preferred embodiment electric connector of the utility model and the chip module assembling.

Fig. 7 is the stereogram of second kind of preferred embodiment terminal of the utility model.

Fig. 8 is the assembling section of second kind of preferred embodiment electric connector of the utility model and chip module and circuit board.

Fig. 9 is the stereogram of the third preferred embodiment terminal of the utility model.

Figure 10 is the part sectioned view of the third preferred embodiment electric connector of the utility model.

Figure 11 is the part sectioned view of the third preferred embodiment electric connector of the utility model and circuit board.

Figure 12 is the stereogram of the 4th kind of preferred embodiment terminal of the utility model.

Figure 13 is the part sectioned view of the 4th kind of preferred embodiment electric connector of the utility model and circuit board.

Embodiment

Fig. 3, Fig. 4, Fig. 5 with Figure 6 shows that first kind of execution mode of the present utility model, this electric connector 10 is used for connecting indirectly chip module 20 and circuit board 30, it comprises that one is provided with insulating body 14 and some terminals 16 that is inserted in the accepting groove of some accepting grooves 12, this terminal 16 roughly takes the shape of the letter U, it comprises that a bottom 160 reaches by upwardly extending contact arm 162 in 160 two ends, bottom and support arm 164, and this bottom 160 is circular arc, its bottom surface is welded with tin ball 166 scolder of other form (or otherwise add), to electrically connect with circuit board 30, this contact arm 162 further is extended with the circular arc contact site 168 that protrudes in accepting groove 12, to electrically connect mutually with chip module 20.During assembling, these chip module 20 compressing terminals 16 move down contact site 168, when moving to the precalculated position, touch the end of support arm 164, thereby can't do further to move, form the elasticity of compression, form excellent contact to guarantee terminal 16 and chip module 20, and can prevent the excessive deformation of terminal 16, make this electric connector that the long life-span be arranged, and, can reduce the electrical impedance of electric connector 10 because contact arm 162 forms a circuit in parallel with support arm 164.Accepting groove 12 in this insulating body 14 is oblique arrangement, thereby make the terminal 16 that is contained in wherein also at an angle, this structure has elasticity preferably because the arm of force is long, and when this electric connector 10 is highly very little, its terminal 16 still can have than length, thereby can guarantee that it has intensity preferably, so help the miniaturization of electric connector 10.

Fig. 7 with Figure 8 shows that second kind of execution mode of the present utility model, this terminal 40 also roughly takes the shape of the letter U, comprise that also a bottom 42 reaches by upwardly extending contact arm 44 in 42 two ends, bottom and support arm 46, this bottom 42 further dashes and is provided with a weld part 48, and these weld part 48 ends roughly are the level of state, to be connected with weld pad 52 on the circuit board 50, this contact arm 44 further is extended with the circular arc contact site 49 that protrudes in accepting groove, and the extension certain distance that continues to bend inwards.These terminals 40 all are contained in the accepting groove 60 with constant slope.Because this electric connector is solder ball in advance not, thereby can enhance productivity and processing cost; This contact arm 44 extends long and bends inwards, thereby can guarantee well to contact with support arm 46 when assembling, and bigger contact area is arranged, and helps the further reduction of electrical impedance.

The utility model also can be embodied as Fig. 9, Figure 10 and mode shown in Figure 11, be with above-mentioned second kind of execution mode difference, these terminal 70 bottoms 72 further dash the weld part 74 that sets out and do not bend to horizontal direction, be that its end is not parallel with circuit board 80, thereby the time with circuit board 80 assemblings, this weld part 74 inserts in the tin cream 82 that is seated on the circuit board 80, because weld part 74 is as long as can form good welding in this tin cream 82 of insertion, thereby can guarantee that this electric connector and circuit board 80 form electric connection reliably.And in insulating body 90 accepting grooves 92, be provided with a floor 94, this floor 94 roughly is positioned at the position that terminal 74 is gone out slotted eye 76 places that stay behind the weld part 74, and its thickness is less than the width of slotted eye 76, thereby can play guide function when terminal is inserted insulating body 90.

Figure 12 with Figure 13 shows that the 4th kind of execution mode of the present utility model, be with above-mentioned second kind of execution mode difference, the weld part 102 of this terminal 100 is not to thrust into a sheet, draw the formation hollow tubular but take out from terminal 100 bottom punching presses, with better with circuit board 110 on scolder 112 weld mutually to reach electric connector be fixed in purpose on the circuit board.

Certainly; more than be several embodiment of the present utility model; any simple change or displacement that persons skilled in the art are done according to above structure all should be included in the protection range of the present utility model; and; the utility model is not limited to be applied in being connected of chip module and circuit board, also can be used for connecting two electronic building bricks of other kind, as the connection between two circuit boards; because these all easy full of beard reach, and just do not enumerate one by one at this.

Claims

1. electric connector, comprise the insulating body and the some terminals that is inserted in this terminal containing slot that are provided with the plurality of terminals accepting groove, it is characterized by: this terminal oblique arrangement is in insulating body, and this terminal is provided with a bottom and extends a contact arm and a support arm by the bottom to two ends, the contact arm top is higher than the accepting groove of isolation terminal, and can form elasticity of compression person.

2. electric connector as claimed in claim 1 is characterized in that: this termination contact arm, bottom and support arm three roughly constitute the U font.

3. electric connector as claimed in claim 2 is characterized in that: further extend at this termination contact arm and be provided with and dock the contacted contact site of electronic building brick.

4. electric connector as claimed in claim 3 is characterized in that: the further inflection of this contact site is extended.

5. as claim 2,3 or 4 described electric connectors, can be added with scolder, electrically connect to produce with circuit board in this terminal bottom.

6. as claim 2,3 or 4 described electric connectors, can further dash in this terminal bottom and set out a weld part,, reach welding after the heating and fix can directly insert in the soft solder of placing on the circuit board.

7. electric connector as claimed in claim 6 can further be bent into a sole that can be parallel on the circuit board at this terminal weld part tail end, reaches welding after the heating and fixes.

8. as claim 2,3 or 4 described electric connectors, can take out in this terminal bottom punching press and draw a protrusion pipe, make it become weld part.