CN2704126Y

CN2704126Y - Zero-plugging-in-force electric connector

Info

Publication number: CN2704126Y
Application number: CNU2004200257807U
Authority: CN
Inventors: 俞威; 彭付金; 何文
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: 2004-03-26
Filing date: 2004-03-26
Publication date: 2005-06-08
Anticipated expiration: 2014-03-26

Abstract

The utility model discloses a zero-plugging-in-force electric connector used to make a chip module electrically connect to a printed circuit board, comprising a base, a conductive terminal accommodated in the base, a cover movably arranged on the base and an actuator arranged between the base and the cover. A boss is extended from the base, and an accommodating hole cooperating with the boss is arranged at a position corresponding to the boss on the cover. The boss comprises a basal part and a clamping part extending from one end of the basal part along the direction perpendicular to the sliding direction of the cover relative to the base, and a groove is arranged between the basal part and the clamping part. The clamping part can be elastically clamped in the corresponding accommodating hole on the cover to avoid the relative rotating dislocation between the cover and the base, when the actuator drives the cover to slide relative to the base. Consequently, the reliable the electric transmission effect can be ensured.

Description

Zero inserting force electric connector

[technical field]

The utility model refers to a kind of zero inserting force electric connector that the wafer module is electrically connected to printed circuit board (PCB) especially about a kind of zero inserting force electric connector.

[background technology]

The wafer module is to be electrically connected on the printed circuit board (PCB) by zero inserting force electric connector, as " the technical matters method of ball bar array socket " (P460-P466,1996 IEEE 46thElectronic Components; Technology Conference) discloses.For meeting the trend of connector design to frivolous development, existing zero inserting force electric connector adopts cam or eccentric wheel structure to drive, and this technology can be joined United States Patent (USP) and be announced the 6th, 338, No. 640, the 6th, 431, No. 900 and the 6th, 579, the content that No. 112 patent disclosed.Wherein, United States Patent (USP) announces the 6th, 579, disclosed the cam-actuated zero inserting force electric connector of a kind of employing for No. 112, as shown in Figure 1, this zero inserting force electric connector 1 is used to electrically connect wafer module (not shown) to printed circuit board (PCB) (not shown), comprises tabular pedestal 2, is held in the tabular lid 3 of pedestal 2 and runs through the drive unit (comprising cam 41 and riveted joint sheet 42) that is arranged between pedestal 2 and the lid 3.Pedestal 2 is provided with some accepting grooves 21, and contains a conducting terminal (not shown) in each accepting groove 21.Extend a base platform 22 in pedestal 2 one sides, these base platform 22 central parts are provided with strip pedestal hole 221.Lid 3 is used for the bearing wafer module, and it is provided with the conductive base pin (not shown) of passage 31 in order to accommodate the wafer module at accepting groove 21 opposite positions with pedestal 2.Lid 3 is extended with lid platform 32 at base platform 22 opposite positions with pedestal 2, and lid platform 32 is provided with lid hole 321 at pedestal hole 221 opposite positions with base platform 22.Cam 41 is successively decreased successively by diameter and not coaxial some cylinders are formed.During assembling, each section cylinder of cam 41 passes lid hole 321 and pedestal hole 221 successively, and riveted joint sheet 42 is sheathed on cam 41 final stage cylinders, and and by this section of riveting cylinder with the solid one of 1 group of this zero inserting force electric connector.

Yet, these zero inserting force electric connector 1 cam 41 structures are that eccentric mechanism directly acts on lid 3 and the pedestal 2, when under the effect of driving torque, rotating, the force direction of system does not pass through the center of zero inserting force electric connector 1, be easy to generate between lid 3 and the pedestal 2 and relatively rotate dislocation, when wafer module conductive base pin more for a long time, cause the partially conductive pin can not be accurately and conducting terminal peg graft, cause the not good enough not even conducting of conducting between conductive base pin and the terminal, and then can not guarantee the electrically transmission reliably between wafer module and the zero inserting force electric connector 1.

Given this, be necessary to provide a kind of improved zero inserting force electric connector to address the above problem in fact.

[utility model content]

The purpose of this utility model is to provide a kind of preventing to drive the zero inserting force electric connector that lid and pedestal in the process of the relative pedestal slippage of lid relatively rotate dislocation at actuator.

The purpose of this utility model is achieved through the following technical solutions: a kind of zero inserting force electric connector, in order to the wafer module is electrically connected on the printed circuit board (PCB), it comprises pedestal, be contained in the conducting terminal in the pedestal, Slide Group be connected to the lid on the pedestal and be installed in pedestal and lid between actuator, base extension is provided with boss, boss comprises base portion and extends the holding section that is provided with from base portion one end along the direction perpendicular to the relative pedestal slippage of lid, be provided with groove between base portion and the holding section, position corresponding to boss on the lid is provided with the accepting hole that cooperates with boss, but holding section elasticity is fastened on the lid in the corresponding accepting hole.Another zero inserting force electric connector relevant with the utility model, it comprises pedestal, be contained in the conducting terminal in the pedestal, Slide Group be connected to the lid on the pedestal and be installed in pedestal and lid between actuator, the lid extension is provided with boss, boss comprises base portion and extends the holding section that is provided with from base portion one end along the direction perpendicular to the relative pedestal slippage of lid, be provided with groove between base portion and the holding section, the holding section is provided with the buckle piece, position corresponding to boss on the pedestal is provided with accepting hole, accepting hole further is provided with step surface, and the buckle piece on the holding section of boss is snapped on the step surface.

Compared with prior art, the utlity model has following advantage: when actuator drives the relative pedestal slippage of lid, though the force direction of system does not pass through the center of this zero inserting force electric connector, but owing to boss cooperates the fixing effect that forms with the accepting hole assembling, prevented the dislocation that produces relative rotation between lid and the pedestal, all conductive base pins of wafer module can accurately be pegged graft with conducting terminal, thereby guarantee electrically transmission reliably between wafer module and zero inserting force electric connector.

[description of drawings]

Fig. 1 is a kind of three-dimensional exploded view of existing zero inserting force electric connector.

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

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model zero inserting force electric connector.

Fig. 4 is the three-dimensional combination figure of the utility model zero inserting force electric connector.

Fig. 5 is the three-dimensional combination figure behind relative pedestal slippage one segment distance of the utility model zero inserting force electric connector lid.

Fig. 6 is the three-dimensional exploded view of second kind of execution mode of the utility model zero inserting force electric connector.

[embodiment]

Below in conjunction with accompanying drawing and embodiment the utility model is done and to be described in further detail: see also Fig. 2 to shown in Figure 5, the utility model zero inserting force electric connector 5 is used for wafer module (not shown) is electrically connected to printed circuit board (PCB) (not shown), and it includes pedestal 6, lid 7, plurality of conductive terminals (not shown), actuator 8 and riveting sheet 9.

Pedestal 6 include by insulating material make and rectangular tabular base body 61, from extended base platform 62 of base body 61 1 ends and T shape pad 63.Base body 61 is provided with some accepting grooves separated from one another 610, contain a conducting terminal in each accepting groove 610, base body 61 two opposite sides edge extension downwards are provided with pedestal sidewall 611, and pedestal sidewall 611 is provided with a pair of fixture block separated from one another 612 thereon.Base platform 62 is provided with T shape pad groove 626 in the central position of its one side that engages with printed circuit board (PCB), is used to accommodate pad 63, and these pad groove 626 bottoms are formed with circular seat hole 620, is used to accommodate the counterpart of actuator 8.Pedestal 6 is provided with pair of projections 621 in the one side that it engages with lid 7, and in present embodiment, this distributes to boss 621 and is arranged on seat 620 both sides, hole that base platform 62 is established.Boss 621 comprises base portion 622 and extends the holding section 623 that is provided with from base portion 622 1 ends along the direction perpendicular to lid 7 relative pedestal 6 slippages, be provided with groove 624 between base portion 622 and the holding section 623, so that holding section 623 is for elastic arm designs, holding section 623 top ends are provided with buckle piece 625.Pad 63 is with in the pad groove 626 that is pressed into or inlays the mode of burying moulding and be embedded in base platform 62, and pad 63 is provided with the central through hole 630 that connects with seat hole 620.

Lid 7 is fastened on the pedestal 6, it comprise by insulating material make and rectangular lid body 71, from the extended lid platform 72 of lid body 71 1 ends, retaining sheet 73 and pressing plate 74.Accepting groove 610 corresponding to pedestal 6 in the lid body 71 is provided with some passages 710, is used to accommodate the conductive base pin (not shown) of wafer module.Lid body 71 two opposite sides edge extension downwards are provided with a pair of covered body wall 711, and the medial surface of this covered body wall 711 is concaved with draw-in groove 712, are used to accommodate the fixture block 612 that is provided with on the corresponding pedestal 6 and its certain slipping space is provided.Covered body wall 711 is respectively equipped with depressed part 713, so that the operator dismantles the wafer module in itself and lid body 71 connecting places and near the axis of symmetry position of lid body 71.Be provided with corresponding to the position in seat hole 620 on the lid platform 72 and cover hole 720, be provided with accepting hole 721 corresponding to the position of the boss 621 that is provided with on the pedestal 6.Lid platform 72 is provided with first groove 722 in its one side that engages with the wafer module, and lid platform 72 is provided with second groove 723 in its one side that engages with pedestal 6.Retaining sheet 73 is placed in first groove 722, and it is provided with first centre bore 730 corresponding to 620 positions, seat hole, is provided with first through hole 731 corresponding to boss 621 positions.Pressing plate 74 is placed in second groove 723 to be pressed into or to inlay the mode of burying moulding, and it is provided with second centre bore 740 corresponding to 620 positions, seat hole, is provided with second through hole 741 corresponding to boss 621 positions, also is provided with the stopper section 742 of two projectioies on the pressing plate 74.Along direction perpendicular to lid 7 relative pedestal 6 slippages, corresponding to the size of first through hole 731 on the accepting hole 721 on the lid 7 of boss 621, the retaining sheet 73 and second through hole 741 on the pressing plate 74 size, so that the space of lid 7 with respect to pedestal 6 slippages to be provided greater than boss 621; Along the direction that is parallel to lid 7 relative pedestal 6 slippages, closely cooperate with boss 621 corresponding to the accepting hole 721 on the lid 7 of the boss 621 that is provided with on the pedestal 6, first through hole 731 on the retaining sheet 73 and second through hole 741 on the pressing plate 74, relatively rotate dislocation when preventing that actuator 8 from driving relative pedestal 6 slippages of lid 7 between lid 7 and the pedestal 6.

Actuator 8 comprises that one from top to bottom links to each other and diameter successively decreases successively first cylinder 81, second cylinder 82, the 3rd cylinder 83 and the 4th cylinder 84, the second cylinders 82 sidewalls stretch out and is provided with projection 85.First cylinder 81, second cylinder 82, the 3rd cylinder 83 are contained in respectively in the central through hole 630 of second centre bore 740, seat hole 620 and pad 63 of first centre bore 730 of retaining sheet 73 and lid hole 720, pressing plate 74, and the 4th cylinder 84 is used for and riveting sheet 9 riveteds.The seat hole 620 of first centre bore 730 of retaining sheet 73 and lid hole 720, pedestal 6 and the central through hole 630 of pad 63 become isometrical design substantially and are matched in clearance with first cylinder 81, the 3rd cylinder 83, and these cylinders can rotate in corresponding aperture.The minor face of second centre bore 740 of pressing plate 74 roughly with second cylinder, 82 equal diameters, its long limit makes second centre bore 740 can hold second cylinder 82 and rotates in it then greater than second cylinder, 82 diameters, and leaves along the space of its long limit slippage.85 of projections are contained in when pressing plate 74 is rabbeted with lid 7, and in the stopper section 742 formed pressing plates 74 and the space between the lid head 72 by projection, the event trace of projection 85 is limited by stopper section 742.First cylinder 81, the 3rd cylinder 83 and the 4th cylinder 84 are coaxial design, the axis of second cylinder 82 and these column axis certain distance that interlaces.By this eccentric structural design, the actuator 8 externally effect of instrument (as a word bottle opener etc.) drives lid 7 relative pedestal 6 slippages down, lid 7 is moved between first and second position, wherein, when primary importance, the conductive base pin of wafer module (not shown) inserts in the passage 710 of lid 7 but contact with conducting terminal (not shown), when the second place, contacts in the passage 710 of the conductive base pin of wafer module insertion lid 7 and with conducting terminal.

During assembling, to be pressed into or inlay the lid 7 that is embedded with pressing plate 74 earlier is connected to and is pressed into or inlays on the pedestal 6 that is embedded with pad 63, then retaining sheet 73 is mounted in first groove 722 on the lid platform 72, again actuator 8 is gone into from first centre bore, 730 upper set of retaining sheet 73, at last with circular riveting sheet 9 with protruding the 4th cylinder 84 terminal riveteds that are exposed to the actuator 8 of pedestal 6 belows, it is firm that 8 of pedestal 6, lid 7 and actuators are engaged.See also Fig. 4, Fig. 5, after assembling is finished, along on the direction perpendicular to lid 7 relative pedestal 6 slippages, between first centre bore 730 of actuator 8 first cylinders 81 and retaining sheet 73, be formed with suitable gap between first through hole 731 of boss 621 and retaining sheet 73,, actuator 8 drives the space of lids 7 relative pedestal 6 slippages so that being provided; Along being parallel on the direction of lid 7 relative pedestal 6 slippages, the holding section 623 of boss 621 pass the accepting hole 721 of second through hole 741, lid 7 of pressing plate 74 and final Elastic buckle in first through hole, 731 edges of retaining sheet 73, to prevent when actuator 8 drives relative pedestal 6 slippages of lid 7, relatively rotate dislocation between lid 7 and the pedestal 6, when wafer module conductive base pin more for a long time, all conductive base pins and conducting terminal are accurately pegged graft, thereby guarantee wafer module and 5 electrically transmission reliably of zero inserting force electric connector.

In addition, above-mentioned lid 7 also can not comprise pressing plate 74, and when lid 7 did not comprise pressing plate 74, position corresponding on the retaining sheet 73 was located in the stopper section 742 that restriction actuator 8 rotates, accordingly, the projection 85 of actuator 8 will be stretched out by first cylinder, 81 sidewalls and form.

Other sees also Fig. 6, disclosed the zero inserting force electric connector 5 of second kind of execution mode of the utility model ', this zero inserting force electric connector 5 ' comprise pedestal 7 ', lid 6 ' and actuator 8 ', lid 7 ' in itself and the one side of pedestal 6 ' engage be provided with boss 621 ', boss 621 ' comprise base portion 622 ' and from base portion 622 ' one ends along extend on the direction perpendicular to lid 7 ' pedestal 6 ' slippage relatively the holding section 623 that is provided with ', holding section 623 ' be provided with buckle piece 625 ', pedestal 6 ' go up corresponding to boss 621 ' the position be provided with accepting hole 721 ', accepting hole 721 ' be provided with step surface 723 ', during assembling, boss 621 ' holding section 623 ' on buckle piece 625 ' be snapped in step surface 723 ' on.

Claims

1. zero inserting force electric connector, comprise pedestal, be contained in conducting terminal, Slide Group in the pedestal be connected to the lid on the pedestal and be installed in pedestal and lid between actuator, it is characterized in that: the base and cover body extends on one of them and is provided with boss, position corresponding to boss on another is provided with the accepting hole that cooperates with boss, boss comprises base portion and extends the holding section that is provided with from base portion one end along the direction perpendicular to the relative pedestal slippage of lid, is provided with groove between base portion and the holding section.

2. zero inserting force electric connector as claimed in claim 1 is characterized in that: boss is located on the pedestal, and accepting hole then is arranged on the lid.

3. zero inserting force electric connector as claimed in claim 1 is characterized in that: boss is located on the lid, and accepting hole then is arranged on the pedestal.

4. zero inserting force electric connector as claimed in claim 1 is characterized in that: greater than the size of boss, accepting hole can closely engage with boss along the direction perpendicular to the relative pedestal slippage of lid accepting hole along the size of the direction that is parallel to the relative pedestal slippage of lid.

5. as claim 2 or 3 described zero inserting force electric connectors, it is characterized in that: the holding section of boss is provided with the buckle piece, and buckle piece elasticity is fastened in the accepting hole.

6. zero inserting force electric connector as claimed in claim 2 is characterized in that: pedestal comprises two boss being located at the pedestal both sides.

7. zero inserting force electric connector as claimed in claim 3 is characterized in that: lid comprises two boss being located at the lid both sides.

8. zero inserting force electric connector as claimed in claim 3 is characterized in that: further be provided with the step surface that is clasped with the boss holding section in the accepting hole that is provided with on the pedestal.