CN2682693Y

CN2682693Y - Electric connector

Info

Publication number: CN2682693Y
Application number: CN 200320120039
Authority: CN
Inventors: 马浩云
Original assignee: Hongteng Precision Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongteng Precision Technology Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2003-11-26
Filing date: 2003-11-26
Publication date: 2005-03-02
Anticipated expiration: 2013-11-26

Abstract

The utility model provides an electric connector which is used for electrically connecting the electric connector of an integrated circuit package. The electric connector comprises an isolation body and a plurality of conductive terminals contained in the isolation body; the isolation body is provided with a plurality of terminal holes; each terminal hole is provided with a step surface; the terminal is provided with a holding part and a welding part which extends from the lower end of the holding part and can be welded on a circuit board; the holding part extends two shoulders in both side directions corresponding to the step surface; the two shoulders match with the step surface so as to prevent the terminal withdrawing from the isolation body, and a certain distance exists between the two shoulders and the step surface; therefore, after the electric connector is welded with the circuit board and when the isolation body generates a certain buckle, the step surface can not act on the shoulders of the terminals; as a consequence, the utility model can avoid that the welding connection position is damaged because of bearing larger stress action.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers to a kind of electric connector of accepting the integrated circuit encapsulation in the mode of pushing especially.

[background technology]

With the develop rapidly of computer integrate circuit encapsulation (referring to the CPU module especially) speed of service, its packing forms is in continuous variation, and the also constantly development of the structure of the electric connector of bearing integrated encapsulation.The encapsulation encapsulation of stitch grid array (PGA) integrated circuit is now generally used, and the electric connector that is used to carry this integrated circuit encapsulation also is welded in printed circuit board (PCB) in a large number, and this technology can be with reference to United States Patent (USP) the 5th, 456, No. 613.But, the traditional electrical connector needs the mat plain conductor terminal supportor to be drawn the circuit that is connected to interior of IC package, not only this lead-in wire program raises the cost and increases the assembling volume (usually, plain conductor draws the encapsulation volume of receiving terminal supportor, approximates four times that former integrated circuit package body amasss), in addition, because of terminal supportor lengthening circuit paths, resistance is increased,, the phenomenon of signal entanglement very easily occurs if in higher transmission environment.Thereby another kind of integrated circuit encapsulation packing forms-ball-shaped grid array (BGA) encapsulation makes volume only be 1/3rd of PGA integrated circuit encapsulation encapsulation because of it shortens signaling path by the tin ball, and the trend that replaces PGA arranged, correlation technique please refer to United States Patent (USP) the 5th, 419, No. 710.

Can reduce signal transmission path and make the packing forms of encapsulation volume minimum is pad grid array (LGA) encapsulation, its integrated circuit encapsulation utilizes conductive spacer to reach by interference fit mutually with the conductive spacer on the corresponding electric connector and electrically conducts, its correlation technique document please refer to Nonlinear Analysis HelpsDesign LGA Connectors (Connector Specifier, February, 2001), relevant patent please refer to United States Patent (USP) the 5th, 192, No. 213, the 5th, 199, No. 889, the 5th, 232, No. 372, the 5th, 320, No. 559 and the 5th, 362, No. 241 grades disclose.

As Fig. 1～2 be depicted as the known a kind of existing electric connector 1 of industry ', be used for integrated circuit encapsulation 30 ' be electrically connected to circuit board 32 ', its mainly comprise be equipped with plurality of conductive terminals 7 ' insulating body 2 ', frame be located at the reinforced sheet 4 of insulating body 2 ' periphery ', respectively rotatable be assembled in reinforced sheet 4 ' relative both sides pressing plate 5 ' reach rocking bar 6 '.Insulating body 2 ' upside be provided with in order to accommodate integrated circuit encapsulation 30 ' receiving space 20 ', insulating body 2 ' downside be provided with the diapire 22 of receiving space 20 ' adjacent ', run through a plurality of terminal holes 24 that diapire 22 ' be provided with array way arranges '.Terminal hole 24 ' relative both sides respectively be provided with a step, thereby make the interference hole 242 of the accepting hole 246 of terminal hole 24 ' have upside size broad ' narrower with the downside size ', interfere hole 242 ' and accepting hole 246 ' between have step surface 248 '.The flat holding parts 70 of terminal 7 ' be provided with ', holding parts 70 ' the both sides, upper end convex with respectively a shoulder 703 ', two shoulders 703 ' width dimensions greater than interfere hole 242 ', and shoulder 703 ' be contained in accepting hole 246 ' in, and be connected to step surface 248 ' go up with guarantee terminal 7 ' can not deviate from downwards insulating body 2 '.Holding parts 70 ' the both sides, lower end respectively be provided with pair of projections 701 ', boss 701 ' can with interfere hole 242 ' interference engagement.From holding parts 70 ' be extended with downwards perpendicular to the weld part 71 of holding parts 70 ' direction bending ', weld part 71 ' be connected with can be welded in circuit board 32 ' on tin ball 710 '.

Yet, for electric connector 1 ' actual environment for use in, always there are reasons such as vibrations, impact, temperature and manufacturing, thereby can make insulating body 2 ' diapire 22 ' certain part move up, step surface 248 ' also moves on can be thereupon, and terminal 7 ' be welded in circuit board 32 ' on, so can cause terminal hole 24 ' step surface 248 ' on move and to terminal 7 ' generation active force, make terminal 7 ' and circuit board 32 ' between be welded to connect and meet with stresses, and may cause it to burst apart, thereby the influence electric connection is stable.

Therefore, the utility model is provides a kind of electric connector that improves at above-mentioned defective.

[utility model content]

The purpose of this utility model is to provide a kind of terminal and insulating body of guaranteeing to have preferable retain strength to guarantee the stable electric connector that electrically connects.

The purpose of this utility model is so to realize: a kind of electric connector that is used to electrically connect the integrated circuit encapsulation, it comprises insulating body, is contained in a plurality of conducting terminals in the insulating body, the insulating body upside is provided with the receiving space that can accommodate the integrated circuit encapsulation, downside is provided with the diapire adjacent with receiving space, run through this diapire and be provided with a plurality of terminal holes, each terminal hole is provided with step, thereby make terminal hole have the accepting hole and the narrower interference hole of downside size of upside size broad, interfere between hole and the accepting hole to have step surface; Terminal is provided with holding parts and extends the weld part that can be welded on the circuit board from the holding parts lower end, upper end two side direction of holding parts are extended two shoulders, the width of two shoulders is greater than the interference hole, and behind terminal shape such as the insulating body, shoulder is contained in the accepting hole and apart from step surface a distance.

Relative prior art, the shoulder of the utility model electric connector terminal has a distance apart from the step surface of terminal hole.Like this, make because of influences such as vibrations, impact, temperature take place on the step surface of insulating body certain when mobile, terminal can with the effect that is welded to connect of circuit board under relative insulating body be moved, so the shoulder of terminal can not act on the step surface, bear big stress and cause destruction thereby avoid being welded to connect the position.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of existing electric connector and integrated circuit encapsulation.

The partial sectional view that Fig. 2 cooperates with terminal for existing electric connector insulating body.

Fig. 3 is the three-dimensional exploded view of the utility model electric connector and integrated circuit encapsulation.

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

Fig. 5 is the partial sectional view that the utility model electric connector insulating body cooperates with terminal.

[embodiment]

Consult Fig. 3 to Fig. 5, electric connector 1 of the present utility model is used for integrated circuit encapsulation 30 is electrically connected to circuit board 32, and it comprises that mainly the insulating body 2, the frame that are equipped with plurality of conductive terminals 7 be located at the reinforced sheet 4 of insulating body 2 peripheries, rotatable pressing plate 5 and the rocking bar 6 that is assembled in the relative both sides of reinforced sheet respectively.

The upside of insulating body 2 is provided with in order to accommodating the receiving space 20 of integrated circuit encapsulation, and its downside is provided with the diapire 22 adjacent with receiving space 20.Run through diapire 22 and be provided with a plurality of terminal holes 24 that array way is arranged, the relative both sides of terminal hole 24 respectively are provided with a step, thereby make terminal hole 24 have the accepting hole 246 and the narrower interference hole 242 of downside size of upside size broad, interfere between hole 242 and the accepting hole 246 to have step surface 248.

Terminal 7 forms for the sheet stamping moulding, and it is provided with flat holding parts 70.Size is extended greater than the shoulder 703 of interfering hole 242 in the both sides, upper end of holding parts 70, shoulder 703 is in step surface 248 upsides, and apart from step surface 248 certain distances, can not deviate from insulating body 2 downwards both can guarantee terminal 7, can make insulating body 2 again when normal operation circumstances leave from office terrace 248 moves up certain distance, shoulder 703 can not act on the blocking surface 248, and the height of boss 701 extensions is less than the height of shoulder 701.The both sides, lower end of holding parts 70 respectively are provided with a boss 701, boss 701 can with interfere hole 242 interference engagement.Be extended with the weld part 71 that bends perpendicular to holding parts 70 directions downwards from holding parts 70, weld part 71 downsides are connected with the tin ball 710 that can be welded on the circuit board 32.Holding parts 70 upper ends are connected with elastic arm 76, and own elasticity arm 76 upper ends have extended contact site 78 perpendicular to holding parts 70 directions, and contact site 78 is exposed to diapire 22 upper surfaces.

Pressing plate is lamellar, and rotary pressure plate and rocking bar, pressing plate is pressed in pack in the integrated circuit encapsulation 30 of receiving space 20, thereby guarantees termination contact portion 78 above-below direction face contacts stable of integrated circuit encapsulation 30 and the diapire 22 that stretches out insulating body 2.

Because the shoulder 703 of the utility model electric connector terminal 7 is provided with certain distance with the step surface 248 of insulating body 2, so after electric connector 1 is welded on the circuit board 32, even in vibrations, impact, reason such as temperature strain and manufacturing makes insulating body 2 produce the certain buckling deformation or the certain distance that moves up, and when making step surface 248 move up certain distance, also can not cause shoulder 703 effects of step surface 248 with the terminal 7 of terminal hole 24, thereby help slowing down the stress that bears that is welded to connect between electric connector terminal 7 and the circuit board 32, prolong the life-span that is welded to connect, help guaranteeing the stable of its electric connection.

Claims

1. one kind is electrically connected to the electric connector that electricity reveals plate with integrated circuit encapsulation, it comprises insulating body, is contained in a plurality of conducting terminals in the insulating body, the insulating body upside is provided with the receiving space that can accommodate the integrated circuit encapsulation, downside is provided with the diapire adjacent with receiving space, run through this diapire and be provided with a plurality of terminal holes, each terminal hole is provided with step, thereby makes terminal hole have the accepting hole and the narrower interference hole of downside size of upside size broad, interferes between hole and the accepting hole to have step surface; Terminal is provided with holding parts and extends from the holding parts lower end and can be welded in weld part on the circuit board, two shoulders are extended to both sides in the upper end of holding parts, the width of two shoulders is greater than interfering the hole, and terminal is packed into behind the terminal hole, shoulder is contained in the accepting hole, it is characterized in that: shoulder is higher than step surface in accepting hole have a distance, has certain interval between shoulder and the step surface.

2. electric connector as claimed in claim 1 is characterized in that: the terminal holding parts is lamellar, respectively is provided with a boss in the both sides, lower end of holding parts, and the width of two boss is less than the width of two shoulders, and boss can with interfere the hole interference engagement.

3. electric connector as claimed in claim 2, it is characterized in that: terminal is provided with in addition from holding parts and is extended with the weld part that bends perpendicular to the holding parts direction downwards, extend upward flexible portion, own elasticity portion terminal vertical terminals holding parts direction is extended with contact site, and contact site exposes diapire and can encapsulate the above-below direction face contact with integrated circuit.

4. electric connector as claimed in claim 1 is characterized in that: this electric connector comprises that also frame is located at the reinforced sheet of insulating body periphery, rotatable pressing plate and the rocking bar that is assembled in the relative both sides of reinforced sheet respectively.

5. electric connector as claimed in claim 4 is characterized in that: the upside of insulating body is provided with in order to accommodating the receiving space of integrated circuit encapsulation, and rotary pressure plate and rocking bar, and pressing plate is pressed in the integrated circuit encapsulation of the receiving space of packing into.