CN2609208Y

CN2609208Y - Electric connector

Info

Publication number: CN2609208Y
Application number: CNU032432208U
Authority: CN
Inventors: 马浩云
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-03-23
Filing date: 2003-03-23
Publication date: 2004-03-31
Anticipated expiration: 2013-03-23

Abstract

The utility model discloses an electric connector for electrically connecting a chip module and a circuit. The utility model comprises an insulting body which is fixedly arranged on the circuit, and a conductive terminal which is arranged on the insulting body. The insulting body comprises a bearing surface which towards to the chip, and a fitting surface which towards to the circuit board. The bearing chip module area is provided with a plurality of terminal holes which is continue through the bearing surface and the fitting surface, a plurality of padding block with same height is arranged towards to the circuit board on the area which is on the upper part of the fitting surface and beyond the terminal hole. The conductive terminal comprises a pressing end which is contained inside the terminal hole and near to one side of the bearing surface, a connection end which convexly extends from the fitting surface and is conductively connected with the circuit board. The conductive terminal can relatively move to the insulting body when in ambient pressure, thus make the pressing end of the conductive terminal convexly extends from the bearing surface, now the padding block supports the circuit board, so that reduce the anchorage force which is beard by the connection end of the conductive terminal.

Description

Electric connector

[technical field]

The utility model is about a kind of electric connector, refers to a kind of electric connector that electrically connects chip module and circuit board especially.

[background technology]

Lga connector generally uses with the planar lattice array chip module, and is to realize contacting of the two conducting position in the mode of pushing between this connector and the chip module, and reaches stable telecommunication transmission between the two.

See also Fig. 8 and shown in Figure 9, disclosed a kind of existing electric connector 6, it comprises insulating body 61 that is fixedly arranged on the circuit board and the conducting terminal 62 that is installed on insulating body 61, this insulating body 61 comprises that the zone of its carries chips module 8 is provided with some terminal holes 63 through this loading end 610 and installed surface 611 towards the loading end 610 of chip module 8 and towards the installed surface 611 of circuit board 9; Conducting terminal 62 comprises press-side 621 that is contained in terminal hole 63 close loading end 510 1 sides and the link 622 that is provided with the tin ball, between above-mentioned press-side 621 and link 622, be provided with a holding parts 623, so that being stablized, conducting terminal 62 is immobilizated in the insulating body 61, after the installation, tin ball on press-side 621 and the link 622 protrudes out loading end 610 and installed surface 611 respectively, to connect with chip module 8 and circuit board 9.

But, owing in actual installation and use, need apply big external force to electric connector 6, to guarantee that electric connector 6 is connected with the stable of chip module 8, but the tin ball on the conducting terminal 62 also is subject to above-mentioned pressure influence and is out of shape even collapses and step on, and causes connection failure.In addition, press-side 621 protrudes out outside insulating body 61 loading ends 610, and the bending distortion may take place when being touched by foreign object, and then influences the switching performance of electric connector.

[utility model content]

The purpose of this utility model provides a kind of electric connector that can prevent that conducting terminal link tin ball-joint is subjected to big pressure and conducting terminal is moved up and down with respect to insulating body.

The utility model is about a kind of electric connector, it comprises the conducting terminal that is fixedly arranged on the insulating body on the circuit board and is installed on insulating body, wherein insulating body comprises towards the loading end of chip module and towards the installed surface of circuit board, the plurality of terminals hole is through this loading end and installed surface, and is provided with some contour cushion blocks towards circuit board on installed surface; Conducting terminal is installed in the insulating body terminal hole, and can move with respect to insulating body along terminal hole under external force.

Compared with prior art, advantage of the present utility model is: the press-side of conducting terminal is placed in the terminal hole, insulating body is provided with cushion block, conducting terminal can move up and down in accepting hole at end, when pressurized is worked, cushion block is supported in circuit board, and the press-side of terminal beginning protrudes out loading end, thereby the press-side that can prevent conducting terminal exposes impaired and can reduce the suffered support force of link.

[description of drawings]

Fig. 1 is the stereogram of the utility model electric connector.

Fig. 2 is the stereogram at another visual angle of the utility model electric connector.

Fig. 3 is the vertical view in the utility model electric connector terminal hole.

Fig. 4 is the cutaway view of Fig. 3 along the IV-IV direction.

Fig. 5 is the stereogram of the utility model electric connector conducting terminal.

Fig. 6 is the cutaway view of the utility model electric connector before chip module is installed.

Fig. 7 is the cutaway view of the utility model electric connector after chip module is installed.

Fig. 8 is the stereogram of the existing electric connector conducting terminal relevant with the utility model.

Cutaway view when Fig. 9 is relevant with the utility model existing electric connector work.

[embodiment]

See also Fig. 1, the utility model electric connector 1 comprises an insulating body 2, this insulating body 2 includes towards the loading end 21 of chip module 7 and towards the installed surface 22 of circuit board 5 (Fig. 6 with reference to), and the zone line of loading end 21 is to insulating body 2 sunken insides, form the supporting region 23 of a carries chips module 7, this supporting region 23 is made up of a bottom surface 231 and four sidewalls 232 being located in these bottom surface 231 all sides, and the size of the size of supporting region 23 and chip module 7 adapts, and regularly arranged loading end 21 and the installed surface 22 that plurality of terminals hole 2310 is arranged through insulating body 2 on its bottom surface 231, to accommodate conducting terminal 3 in wherein.

On the madial wall 232 of supporting region 23 one first elastic arm 2321 is set, this first elastic arm 2321 can be in the space internal strain in being located at this madial wall 232, with on another madial wall 232 that this madial wall 232 links to each other two second elastic arms 2322 are set, and this second elastic arm 2322 can also be in the space internal strain in being located at this madial wall 232, by the elastic reaction of this first elastic arm 2321 and second elastic arm 2322, chip module 7 can be immobilizated in the supporting region 23.

Please in conjunction with consulting Fig. 2, the part of the installed surface 22 of insulating body 2 beyond terminal hole 2310 zones is provided with some cushion blocks 220 towards circuit board 5, in the present embodiment, be that the position near the limit, two opposite sides convexes with raised line respectively along these sides on insulating body 2 installed surfaces 22, wherein the raised line of a side is separated into two sections by first elastic arm 2321, and above-mentioned two raised lines are contour with respect to installed surface.

See also Fig. 3 to shown in Figure 5, each terminal hole 2310 has a T section, and it comprises accommodates part 2311 and perpendicular mating part 2312.And conducting terminal 3 comprises the press-side 31 that is contained in terminal hole 2310 close loading end 21 1 sides, close installed surface 22 and the link 32 that connects with circuit board, and this conducting terminal 3 installed the U-shaped installation portion 33 that is immobilizated in the terminal hole 2310, wherein U-shaped installation portion 33 comprises a pair of arm that is parallel to each other 331, each arm 331 is provided with a taper guidance part 332 and is inserted in the terminal hole 2310 to guide this conducting terminal 3, and the outer surface that each arm 331 contacts with the mounting portion 2312 of terminal hole 2310 is provided with two projectioies 333, and these projectioies 333 form and outwards protrude to interfere with the inner surface of terminal hole 2310 mounting portions 2312 through punching out and engage.In addition, being welded with a tin ball 34 on the link 32 connects with circuit board 5.

Conducting terminal 3 is a matched in clearance with cooperating of 2310 of terminal holes, and cooperation therebetween can be destroyed by an active force that is applied on conducting terminal 3 or the insulating body 2, and therefore when it was subjected to an active force, insulating body 2 can move with respect to conducting terminal 3.

See also Fig. 6 and Fig. 7, after conducting terminal 3 is installed on insulating body 2, its press-side 31 is placed in the terminal hole 2310 and does not protrude out the loading end 21 of insulating body 2, and the tin ball 34 of link 32 protrudes out installed surface 22 certain altitude A, and this height A protrudes out the height B of installed surface 22 greater than cushion block 220.When chip module 7 is installed, one external force is pushed this chip module 7 to the loading end 21 of insulating body 2, because the press-side 31 of conducting terminal 3 does not protrude out loading end 21, chip module 7 at first contacts with the bottom surface 231 of supporting region 23 and it is applied a pressure, and because conducting terminal 3 is a matched in clearance with cooperating of 2310 of terminal holes, thereby under above-mentioned pressure effect, insulating body 2 can move towards circuit board 5 directions with respect to conducting terminal 3.After insulating body 2 moves a certain distance, cushion block 220 on the installed surface 22 can be resisted against on the circuit board 5, share the pressure that tin ball 34 is born, reduce the risk that tin ball 4 collapses under pressure, this moment conducting terminal 3 press-side 31 and chip module 7 between produce elasticity and compress power, realize and electric connection that chip module 7 is stable.

By 220 designs of the cushion block on above-mentioned floating type insulating body 2 and insulating body 2 installed surfaces 22; can protect the press-side 31 of conducting terminal 3 before work, to be protected in the insulating body 2; can not be subjected to foreign impacts and be out of shape; tin ball 34 bears big pressure and collapses and step in the time of simultaneously can preventing work, guarantees the stable machinery and the electric property of electric connector 1.

Claims

1. electric connector, in order to electrically connect chip module and circuit board, comprise the insulating body of tool terminal hole and be installed on the conducting terminal of insulating body terminal hole, wherein insulating body comprises towards the loading end of chip module and towards the installed surface of circuit board, terminal hole is through this loading end and installed surface, it is characterized in that: on the insulating body installed surface, be provided with some contour cushion blocks towards circuit board, conducting terminal does not protrude out outside the loading end, and insulating body can move to the circuit board direction with respect to conducting terminal when pressurized is worked, so that cushion block is connected on the circuit board.

2. electric connector as claimed in claim 1 is characterized in that: the cushion block of insulating body is the raised line that extends along the relative both sides of the edge of insulating body.

3. electric connector as claimed in claim 2 is characterized in that: the raised line of a side is divided into two sections.

4. electric connector as claimed in claim 1 is characterized in that: conducting terminal comprises press-side, link and installation portion.

5. electric connector as claimed in claim 4 is characterized in that: the installation portion of conducting terminal comprises a pair of arm, and the outer surface that each arm contacts with terminal hole is provided with two projectioies.

6. electric connector as claimed in claim 1 is characterized in that: the loading end of insulating body is provided with a recessed supporting region in insulating body.

7. electric connector as claimed in claim 6 is characterized in that: supporting region is made up of a bottom surface and some sidewalls of being located in this bottom surface week side.

8. electric connector as claimed in claim 7 is characterized in that: be respectively equipped with first elastic arm and second elastic arm at least on the supporting region two side.

9. electric connector as claimed in claim 1 is characterized in that: each terminal hole comprises accommodates part and mating part.

10. electric connector as claimed in claim 1 is characterized in that: the link of conducting terminal is provided with the tin ball.