CN201285855Y

CN201285855Y - Electric connector

Info

Publication number: CN201285855Y
Application number: CNU2008203023128U
Authority: CN
Inventors: 张杰峰
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: 2008-09-30
Filing date: 2008-09-30
Publication date: 2009-08-05
Anticipated expiration: 2018-09-30

Abstract

The utility model relates to an electric connector for electrically connecting a chip module to a circuit board, comprising a base provided with terminal holes, a plurality of conductive terminals held in the base, a cover body arranged on the base and a dog driver driving the cover body to slide along the base, wherein each conductive terminal comprises a basal part, a neck part extending upwards from the basal part, a first contact part convexly extending from the top end of the neck part to the left side, an elastic arm convexly extending towards the front side from the upper end of the basal part, a second contact part extending towards the right side from the tail end of the elastic arm and a bottom connected with the circuit board, and both the first contact part and the second contact part are provided with free ends. The terminals of the electric connector have the function of saving material and enhancing the arrangement density.

Description

Electric connector

[technical field]

The utility model refers to a kind of electric connector that chip module is connected to circuit board by welding manner especially about a kind of electric connector.

[background technology]

Develop rapidly along with computer hardware technology, become stronger day by day as the processing speed and the function of central processing unit integrated circuit (IC) chip such as (CPU) at present, therefore, chip externally carries out the electric connection of signal input (I/O) and names a person for a particular job more and more, so the end pin of chip increases with regard to corresponding.As all own industry-wide adoption needle-like array packaged type PGA (Pin Grid Array) that adopts of the integrated circuit (IC) chip of central processing unit equal altitudes densification design, utilize electric connector and circuit board to electrically connect, connect effect preferably thereby reach.Related background art sees also United States Patent (USP) the 6th, 267, No. 615, it has disclosed the conducting terminal that uses in a kind of existing spherical array encapsulation technology, and it comprises base portion, the weld part that extends by the convex top of stretching out of base portion, from base portion and the transition part that connects weld part and base portion downwards.Wherein, extend a pair of arm by relative two lateral bucklings of base portion, this arm is positioned at the front end of base portion, and the horizontal width of arm is slightly less than the width of base portion horizontal direction.Yet, existing conducting terminal bends out above-mentioned arm by punching press after one-body molded again, is not in when also not being fit into corresponding terminal hole on the strip when conducting terminal bends, and needs to take more space after launching because of the arm of conducting terminal is long, so, this structure waste strip; Again when being bent to form above-mentioned arm, though the narrowed width of conducting terminal self, the spacing on the strip between the conducting terminal are still very big, when being assembled into conducting terminal in the terminal hole, can only be assembled in the terminal hole by the method that interlacing is arranged, thereby reduced packaging efficiency.

Therefore, necessary this electric connector is improved to solve above-mentioned defective of the prior art.

[utility model content]

The purpose of this utility model is to provide a kind of electric connector that improves the terminal packaging efficiency.

The purpose of this utility model is achieved in that a kind of electric connector, in order to electrically connect chip module to circuit board, it comprises the pedestal that is provided with terminal hole, be contained in the plurality of conductive terminals in the pedestal, be arranged at the lid on the pedestal and drive the driving lever of lid along the pedestal slippage, wherein, conducting terminal comprises base portion, by the upwardly extending neck in base portion upper end, first contact site that protrudes out to the left by the top of neck, by the elastic arm that protrudes out to the front side on the base portion, by the bottom that the elastic arm end extends to the right and faces second contact site of first contact site and be used for being connected with circuit board, described first contact site and second contact site are equipped with a free end.

Compared with prior art, the conducting terminal of the utility model electric connector is arranged on strip closely can disposable insertion permutation terminal hole, and this structure can be saved strip can improve packaging efficiency again.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

Fig. 2 is the three-dimensional exploded view of the utility model electric connector.

Fig. 3 is the cross-sectional schematic that the conducting terminal of the utility model electric connector is arranged in terminal hole, and wherein the end pin of chip module inserts the guide portion of conducting terminal.

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

Fig. 5 is that the conducting terminal of the utility model electric connector is positioned at the schematic diagram on the strip.

[embodiment]

Please refer to Fig. 1 and Fig. 2, the utility model electric connector 100 is in order to electrically connecting chip module (not shown) to circuit board (not shown), and it comprises the pedestal 2 that is installed on the circuit board (not shown), be contained in plurality of conductive terminals 3 in the pedestal 2, be arranged on the pedestal 2 and can make the directed lid 5 that moves and drive the driving lever 4 of lid 5 along pedestal 2 slippages along pedestal 2.

Please refer to Fig. 2, pedestal 2 comprises rectangular body 21 and is positioned at the connecting portion 22 of body 21 rear ends.Body 21 is provided with the slip plane 211 that connects with lid 5, be provided with some terminal holes 212 that are rectangular arrangement in slip plane 211, contain conducting terminal 3 in the terminal hole 212,, make it to electrically conduct with circuit board (not shown) in order to electrically to being equipped with the chip module (not shown) of end pin 6.Connecting portion 22 is provided with first accepting groove 221 that is used to accommodate driving lever 4, be positioned at first accepting groove, 221 outer middle side parts and convex with projection 2210, be provided with baffle 225 in first accepting groove, 221 1 ends, this baffle 225 can prevent that driving lever 4 from excessively rotating, this baffle 225 can also be arranged on the lid 5, serves the same role.

Lid 5 is in order to accept chip module (not shown), the covering part 52 that it is provided with rectangle cover plate 51 and is arranged at cover plate 51 rear ends, cover plate 51 has the interface 511 that connects with chip module (not shown), this interface 511 is provided with some containing holes 512 corresponding to the terminal hole on the pedestal 2 212, and this containing hole 512 is in order to promote chip module (not shown) during along pedestal 2 slippages at lid 5.Be provided with in the lateral wall 516 of cover plate 51 and be used for locating first fixing piece 513 and the second fixing piece 514 of driving lever 4 in horizontal level, the upside that is positioned at the second fixing piece 514 is provided with the location division 5140 that protrudes out forward.Covering part 52 is provided with second accepting groove 521 that is used to accommodate driving lever 4 corresponding to the top of first accepting groove 221 of pedestal 2.Upper surface from second accepting groove 521 is provided with corresponding Warning Mark (not shown), and this Warning Mark (not shown) is used to indicate the unlatching and the closed direction of motion of driving lever 4.

Driving lever 4 is roughly L-shaped, it comprises drive rod 41 and the action bars 42 that is extended by drive rod 41 terminal bendings, wherein drive rod 41 has hinge portion 415 that is contained between first accepting groove 221 and second accepting groove 521 and the drive division 416 that is in 415 centres, hinge portion and is provided with its off-centre, and described drive division 416 is positioned at projection 2210 positions of first accepting groove 221.The Actuator Division 428 that action bars 42 has a straight-bar 427 and extended by straight-bar 427 terminal bendings, wherein Actuator Division 428 parts can snap in the below of the location division 5140 of the second fixing piece 514.

Please refer to Fig. 3 and Fig. 4, conducting terminal 3 is mainly used in electric connector 100 is electrically connected to circuit board (not shown), and it is integrally formed by the sheet metal punching press, is contained in the terminal hole 212 of pedestal 2.Neck 31, first contact site 32 that protrudes out from the top of neck 31, the bottom 33 that is connected with circuit board (not shown) and the transition part 34 between base portion 30 and bottom 33 that each conducting terminal 3 comprises the base portion 30 of rectangular structure, extended upward and bent by the right side of base portion 30 upper ends.Wherein, the bottom of base portion 30 relative both sides is provided with the some hangnails 300 that protrude out laterally.Outwards vertically extend the elastic arm 35 of one " U " type from the left side of base portion 30 upper ends, one side of elastic arm 35 ends is extended second contact site 36 in the face of first contact site 35, described second contact site 36 and first contact site, the 32 common guide portion (not label) wide outside and narrow inside that form, the end pin 6 that is used for chip guide module (not shown) electrically connects reliably with conducting terminal 3.

See also Fig. 5, it has shown that conducting terminal 3 is positioned at the arrangement mode on the strip, first contact site 32 of conducting terminal 3 is the tops that protruded out and be positioned at base portion 30 by the top of neck 31 to the left, described elastic arm 35 is positioned at the left side of base portion 30 and extends downwards, and second contact site 36 is by the below of extending and be positioned at bottom 33 to the right of elastic arm 35 ends.Wherein, first contact site 32 is to extend left, and second contact site 36 is to extend to the right, and first contact site 32 is positioned at the top of strip, second contact site 36 is positioned at the lower end of strip, and first contact site 32 and second contact site 36 are equipped with a free end, to guarantee conducting terminal 3 enough elasticity is arranged.The width of first contact site 32 and second contact site 36 and the width of base portion 30 are roughly the same, the overall width of the conducting terminal 3 of this structure is narrower, so arranging density of the conducting terminal 3 on the increase strip, making the spacing between the adjacent conductive terminal 3 is consistent with spacing between the terminal accommodation holes 212, so behind conducting terminal 3 bending formings, can during moulding elastic arm 35 upwards vertically be bent to form " U " shape structure after the levels bending forward earlier again with in the disposable permutation terminal hole 212 that is assembled to pedestal 2.

When electric connector 100 is assembled to one, earlier conducting terminal 3 is inserted in the terminal hole 212 of pedestal 2, from up to down pack in the terminal hole 212 of pedestal 2 by the guiding of some hangnails 300 of base portion 30 both sides of conducting terminal 3, its hangnail 300 can increase the retain strength between terminal hole 212 and the conducting terminal 3.Again the drive rod 41 of driving lever 4 is placed by in the receiving space that first accepting groove 221 and second accepting groove 521 complement each other to form, press down cover plate 51 then, lid 5 is fastened on the pedestal 2, can break away from pedestal 2, and limit seesawing of lid 5 with assurance lid 5.Driving lever 4 is that center of rotation is rotated in this receiving space with the axle center of hinge portion 415, and its slewing area is limited to action bars 42 can turn to horizontal level from vertical position, thereby realizes that driving lever 4 drives the function of lid 5 along pedestal 2 directed slippages.At last chip module (not shown) is carried on the cover plate 51 of lid 5, when moving to vertical state by level by stirring driving lever 4, lid 5 makes the end pin 6 of chip module (not shown) go to the good electrically closure state of contact with the zero insertion force state along pedestal 2 side slip backward.At this moment, the end pin 6 of chip module (not shown) is with the mobile slippage of lid 5, thereby realization conducting terminal 3 electrically connects reliably with chip module (not shown).

The conducting terminal 3 of this structure arranging closely on strip, the elastic arm 35 of conducting terminal 3 vertically extends along the side of conducting terminal 3, second contact site 36 is positioned at the lower end of bottom 33, saved material, only need directly to insert in the adjacent terminal hole 212 by strip, and then save strip and improve packaging efficiency through corresponding bending.

Claims

[claim 1] a kind of electric connector, in order to electrically connect chip module to circuit board, it comprises the pedestal that is provided with terminal hole, be contained in the plurality of conductive terminals in the pedestal, be arranged at the lid on the pedestal and drive the driving lever of lid along the pedestal slippage, it is characterized in that: conducting terminal comprises base portion, by the upwardly extending neck in base portion upper end, first contact site that protrudes out to the left by the top of neck, by the elastic arm that protrudes out to the front side on the base portion, by the bottom that the elastic arm end extends to the right and faces second contact site of first contact site and be used for being connected with circuit board, described first contact site and second contact site are equipped with a free end.
[claim 2] electric connector as claimed in claim 1 is characterized in that: when described conducting terminal was arranged on the strip, its first contact site was in the top of base portion, and its second contact site is in the below of bottom.
[claim 3] electric connector as claimed in claim 2 is characterized in that: the elastic arm of described conducting terminal is by twice bending, promptly earlier forward perpendicular to upwards vertically being bent to form " U " shape structure again after the base portion bending.
[claim 4] electric connector as claimed in claim 3 is characterized in that: a lateral buckling of the elastic arm end of described conducting terminal extends the second above-mentioned contact site, the common formation of described second contact site and first contact site connecting portion wide outside and narrow inside.
[claim 5] electric connector as claimed in claim 1 is characterized in that: the bottom of the relative both sides of described base portion is provided with the some hangnails that protrude out laterally, and described hangnail can increase the retain strength between terminal hole and the conducting terminal.
[claim 6] electric connector as claimed in claim 5 is characterized in that: the pedestal of described conducting terminal is connected with circuit board, and it comprises rectangular body and the connecting portion that links to each other with body.
[claim 7] electric connector as claimed in claim 6 is characterized in that: described lid is in order to accept chip module, the covering part that it is provided with the rectangle cover plate and is arranged at the cover plate rear end.
[claim 8] electric connector as claimed in claim 7 is characterized in that: described driving lever comprises drive rod and the action bars that is extended by the terminal bending of drive rod.