CN202134681U - Socket connector and terminal structure thereof - Google Patents

Abstract

The utility model relates to a socket connector and a terminal structure thereof. An upper cover is horizontally arranged on a seat body in a sliding manner. The seat body is provided with a plurality of terminal grooves for the arrangement of a terminal respectively. The upper cover is provided with a plurality of jacks for the corresponding insertion of pins of a wafer. All pins are inserted in the terminal grooves of the seat body. Each terminal is provided with a base plate, and the two sides of the base plate respectively extend upward to form a supporting arm and an elastic arm. At least one supporting arm is provided with a clamping portion to correspond to the top surface of a block clamped on the wall of the terminal groove. The two elastic arms are bent inward in a face-to-face manner, and a contacting portion is respectively arranged on the top of each elastic arm. When the upper cover is sliding toward the terminals, the pins of the wafer are electrically contacted with the contacting portions of the terminals. According to the above design, structures of the seat body and the terminals are effectively simplified, the terminals can be stably fixed in the terminal grooves of the seat body, and the seat body is prevented from deforming due to the excessive interference stress of the terminals.

Description

Socket connector and terminal structure thereof

Technical field

The utility model relates to a kind of socket connector and terminal structure thereof, refers to the socket connector (CPU socket) of wafers such as a kind of central processing unit and the terminal construction of particular design thereof especially.

Background technology

The interface that central processing unit (CPU) is installed on the motherboard is a kind of zero (low) insertion force connector (ZIF socket), and this kind connector comprises that roughly the loam cake and that a pedestal, covers slidably on pedestal is located at pedestal one end and can passes the fixed pawl that loam cake is done horizontal slip relatively; Wherein: be formed with a plurality of terminal grooves on the pedestal, the end in each terminal groove is arranged with a terminal, and the bottom of each terminal is to be exposed to the pedestal bottom surface, and confession is electrically connected to motherboard usefulness after planting the tin ball; Cover again and be formed with a plurality of jacks, supply stitch corresponding inserted on the central processing unit on it, when central processing unit is plugged in loam cake; The stitch of central processing unit will pass the loam cake bottom surface, and further insert the end in addition in each terminal groove on the pedestal, and with respect to the terminal in the terminal groove; Before loam cake does not slide; The stitch of central processing unit not with termination contact, treat that loam cake is pushed away by fixed pawl to pull and during slippage, the stitch of central processing unit is promptly moved towards the terminal direction by the end in addition of terminal groove; And then constitute with terminal and to electrically contact, just each stitch of central processing unit will be connected with motherboard through each terminal on the pedestal.The above is the essential structure and the working method of existing connector.

The pedestal of aforementioned connector, loam cake are to be made up of plastic rubber ejaculate molding again; Terminal then is made up of continuous copper strip; And terminal in the terminal groove that must guarantee firmly to be fixed on pedestal; Also must be after central processing unit insert, electrically contact really with the stitch of central processing unit.Therefore the pedestal and the terminal construction that relate to connector have the design of many improvement or innovation to come out:

For example TaiWan, China utility model patent M361152 number " socket connector structure-improved " is inquired into for existing socket connector to some extent; Analysis according to aforementioned utility model patent; Be formed with protruding thorn or projection on the terminal of existing socket connector (conducting terminal); So that after inserting in the terminal groove of pedestal (plastic cement body), thrust the terminal groove cell wall form interfere with fixing therebetween.But microminiaturized trend for fear of product development; Accommodating the terminal groove spacing of terminal on the pedestal promptly must further dwindle; Just the cell wall thickness of terminal groove will diminish, if still adopt aforesaid interferometric method, interference must produce the interference stresses effect; The central processing unit pin number that uses with present desktop computer (DT) is increased to 1156 by 775, and the central processing unit pin number that notebook computer (NB) uses then is increased to 989 by 478.Under the situation that the central processing unit size does not obviously strengthen; The distance that means stitch must be dwindled relatively, and the terminal groove on socket connector distance will further be dwindled, and is more intensive at terminal groove, spacing is littler; Under the situation that the cell wall wall thickness more approaches; Terminal forms protruding thorn and thrusts the terminal groove cell wall to form the practice of interfering, and the bursting stress that accumulation is powerful causes the distortion of connector.

Therefore aforementioned utility model patent has proposed a solution; Mainly comprise pedestal and be contained in the plurality of conductive terminals in the terminal groove with plurality of terminals groove; Wherein conducting terminal has a main part; This main part has the sidewall of base portion and base portion two lateral bucklings, upwards is provided with block board in the base portion upper topside edge of main part, and this block board back side is provided with fixture block;

Be provided with in the said terminal groove fixture block against platform; On the terminal groove two side walls, be provided with guide vane end stop to the terminal groove central projection; This guide vane end stop basal surface can be connected to conducting terminal top side wall upper limb; Dark excessively when preventing conducting terminal insertion pedestal, through block board, platform and guide vane end stop conducting terminal is fixed in the terminal groove with fixture block.

Utilize previous designs that conducting terminal is contained in the pedestal terminal groove; Fixture block on its block board will drop on the platform surface in the terminal groove; Make unlikely generation stress therebetween; And the guide vane end stop in the terminal groove can prevent in the conducting terminal insertion end pilot trench dark excessively, avoids the distortion of this pedestal whereby, and then improves the quality of products.In addition, comparatively laborsaving when aforementioned utility model patent is also stressed its conducting terminal assembling, can improve packaging efficiency.

Aforementioned utility model patent no doubt proposes solution to the socket connector of adopting interferometric method; But its structure relative complex with regard to conducting terminal; And the terminal groove of pedestal also must cooperate conducting terminal to change its structure and complicated relatively; For example upwards prominently establish platform 221, make the sipes 23 of terminal groove 21 be provided with guide vane end stop 231 to terminal groove 21 central projections again, and the basal surface 232 that makes guide vane end stop 231 and platform 221 end faces are at grade from the relative wall in slit 22 bottoms of terminal groove 21.

As previously mentioned, its pin number of present socket connector significantly increases, and causes the terminal groove spacing on the pedestal to dwindle; Even terminal groove itself also can diminish; Under this situation, the structure that in terminal groove, forms thinner portion will increase the difficulty of making and assembling undoubtedly to cooperate conducting terminal.Therefore relate to socket connector and still wait to propose more actively feasible solution.

The utility model content

The utility model main purpose is providing a kind of socket connector and terminal structure thereof, and it can effectively be simplified the structure of pedestal and terminal and guarantee that further its syntagmatic is firm, and significantly promotes production efficiency.

For reaching the major technique means that aforementioned purpose takes is that the aforesaid sockets connector is comprised:

One pedestal has a surface and a bottom surface, and its surface is formed with a plurality of terminal grooves, and each terminal groove also runs through the pedestal bottom surface; A wherein cell wall of terminal groove is at the outstanding block that forms of the lower end of adjacent floor again, and this block has an end face and a bottom surface, and the bottom surface of this bottom surface and pedestal is positioned on the same plane; A plurality of terminals set up separately in the terminal groove of pedestal, and each terminal is mainly extended upward respectively by the dual-side of a base plate and forms a support arm and an elastic arm, and this bottom edge correspondence is positioned at the block below of terminal groove; Form the outstanding sheet blocking part of tilted direction beyond at least one again support arm, the root edge of this blocking part is corresponding to the end face of terminal groove internal stop; Two elastic arms bend inwards relatively again, and form a contact site respectively in top end.

When aforementioned terminal is packed into terminal groove by the bottom surface of pedestal in; And terminal wherein the blocking part on the support arm through behind the block; Be that clip is on the end face of block and form non-return; At the same time, the block bottom surface of terminal groove also constitutes restriction to the base plate of terminal, in case in the excessive insertion end pilot trench of not-go-end; Utilize previous constructions that terminal positively is fixed in the terminal groove, and do not have the problem that interference stresses causes the pedestal distortion; On the other hand, the structure of pedestal and terminal also is able to further simplification, and effectively promotes production efficiency.

Aforesaid socket connector, wherein terminal be on two relative support arms respectively with mutually externally tilted direction form this towards the inner outstanding blocking part of terminal groove.

Aforesaid socket connector; Wherein the terminal groove of pedestal is rectangular shape; It has the elongated slot wall of two opposing parallel and the short cell wall of two opposing parallel, and wherein the lower end of a short cell wall forms this block, and the end face of this block is lower than the surface of pedestal; Block further comprises the two side again, then forms a long and narrow conduit respectively between two elongated slot walls of two side and terminal groove; The support arm of this terminal and elastic arm side by side, the width of the two addition is matched with the elongated slot wall width of terminal groove, the distance of the Distance Matching of two relative support arms two relative elongated slot walls in terminal groove.

Aforesaid socket connector, wherein blocking part is a side that is positioned at support arm, this side is the short cell wall that is formed with block on the approach end pilot trench.

Aforesaid socket connector; Wherein the block in the terminal groove forms sharping in respectively in two corners of contiguous block bottom surface; Two elongated slot wall bottom corners of terminal groove also form sharping in again, and make the conduit bottom end opening between block two side and elongated slot wall be the expansion shape.

Aforesaid socket connector, the wherein rounded shape of the base plate of terminal central authorities.

The utility model solves its technical problem also can adopt following technical scheme:

A kind of terminal structure of socket connector mainly is that dual-side at a base plate extends upward respectively and forms a support arm and an elastic arm, it is characterized in that, forms the outstanding sheet blocking part of tilted direction beyond on wherein at least one support arm; Two elastic arms bend inwards relatively again, and form a contact site respectively in top end.

The terminal structure of aforesaid sockets connector, wherein on the two relative support arms respectively with mutually externally tilted direction form this towards the inner outstanding blocking part of terminal groove.

The terminal structure of aforesaid sockets connector, the wherein rounded shape of base plate central authorities.

From the above; The utility model forms the simple terminal groove of structure on pedestal; Be provided with structure compared to the simpler terminal of existing technology at terminal groove, except ease of assembly, can get rid of the shortcoming of using interferometric method to be prone to make the pedestal distortion; Terminal positively is installed on the pedestal, and contacts with the central processing unit formation excellent electrical property that is installed on it.Moreover; The aforesaid sockets connector is in terminal groove after the mounting terminal; Must cross tin stove reflow so that plant the tin ball in the bottom surface of terminal; And the high heat that terminal contacts when crossing the tin stove will be transmitted to terminal groove via terminal, and when terminal and terminal groove contact area were excessive, terminal groove was easy Yin Gaore and being out of shape; But the utility model can reduce the area that terminal contacts with terminal groove as far as possible, thereby can avoid the terminal groove distortion on the pedestal.

The beneficial effect of the utility model is can effectively simplify the structure of pedestal and terminal and guarantee that further its syntagmatic is firm, and significantly promote production efficiency.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the partial exploded view of the utility model one preferred embodiment.

Fig. 2 is a cutaway view of pedestal in the utility model one preferred embodiment.

Fig. 3 is the terminal groove vertical view on the pedestal in the utility model one preferred embodiment.

Fig. 4 is the another cutaway view of pedestal in the utility model one preferred embodiment.

Fig. 5 is a schematic perspective view of terminal in the utility model one preferred embodiment.

Fig. 6 is the another schematic perspective view of terminal in the utility model one preferred embodiment.

Fig. 7 is a local assembled sectional view of the utility model one preferred embodiment.

Fig. 8 is the another local assembled sectional view of the utility model one preferred embodiment.

Embodiment

About a preferred embodiment of the utility model, please refer to shown in Figure 1ly, it comprises a pedestal 10, is formed with a plurality of terminal grooves 11 on this pedestal 10, is arranged with a terminal 20 in each terminal groove 11; In this mandatory declaration be: a typical socket connector is except pedestal 10 and terminal 20; With comprising that further one covers loam cake and on pedestal 10 slidably and is located at pedestal 10 1 ends and can passes the fixed pawl that loam cake slides relatively; But the innovation of the utility model part does not comprise the structure of loam cake and fixed pawl; So in following embodiment, with other assembly structure on loam cake, fixed pawl and the socket connector not being explained.

Please refer to Fig. 2, shown in Figure 3 again, this pedestal 10 has 101 and one bottom surface 102, a surface, and pedestal 10 is to form these terminal grooves 11 on surface 101 again, and each terminal groove 11 and run through the bottom surface 102 of pedestal 10; In the present embodiment; Terminal groove 11 is rectangular shape (to overlook the direction definition); It has short cell wall 11C, the 11D of elongated slot wall 11A, 11B and two opposing parallel of two opposing parallel, and wherein the lower end of a short cell wall 11C is formed with a block 12, and this block 12 has an end face 121, a bottom surface 122 and a two side; Its end face 121 is lower than the surface 101 of pedestal 10; 122 bottom surfaces 102 with pedestal 10, its bottom surface are positioned at same plane, then form a long and narrow conduit 13 respectively between two elongated slot wall 11A of the two side of block 12 and terminal groove 11,11B, please refer to shown in Figure 4 again; Two corners of these block 12 adjacent floor 122 form sharping in respectively; Two elongated slot wall 11A, the 11B bottom corner of terminal groove 11 also form sharping in again, and make aforementioned conduit 13 bottom end openings be the expansion shape, are beneficial to terminal 20 by in the 102 insertion end pilot trench 11 of pedestal 10 bottom surfaces.

Please refer to Fig. 5, shown in Figure 6, this terminal 20 has a base plate 21, and in the present embodiment, this base plate 21 central authorities are rounded, and constitutes the racket face that is commonly called as, supplies to plant the tin ball and uses; Base plate 21 dual-sides extend upward respectively and form a support arm 22 and an elastic arm 23 again; This support arm 22 be with elastic arm 23 side by side, the distance of two relative support arms 22 near and be slightly less than the distance (please cooperate with reference to shown in Figure 7) of 11 liang of elongated slot walls of terminal groove 11A, 11B.Aforementioned again arbitrary support arm 22 with mutually externally tilted direction form terminal groove 11 inner outstanding blocking parts 220 on one day; The root edge of this blocking part 220 down; And corresponding to the end face 121 of terminal groove 11 set blocks 12; In the present embodiment, blocking part 220 is to be positioned on the side that is close to short cell wall 11C on the support arm 22 (please cooperate with reference to shown in Figure 8).In the present embodiment, be on two support arms 22, to be formed with a blocking part 220 respectively.

Be formed with a horizontal folding line 230 again on two elastic arms 23 respectively; And bend towards relative direction along this folding line 230; Make the distance of the distance of two elastic arms, 23 upper ends less than the lower end; Two elastic arms, 23 tops extend to form a contact site 231 with horizontal direction respectively again, and this contact site 231 is near the bending relatively outwardly and slightly be splayed respectively of the end of short cell wall 11D; And the folding line 230 on two elastic arms 23 can be a horizontal horizontal line; Also can be an oblique line (promptly higher) near the end of short cell wall 11D; When elastic arm 22 is that contact site 231 is parallel to each other near the end of short cell wall 11C haply along 230 bendings of horizontal folding line, if bend along the folding line of oblique line shape; Then contact site 231 also slightly is splayed near the end of short cell wall 11C, under this situation, can make elastic arm 23 have preferable torsion.

When the stitch of a central processing unit passes loam cake and in the insertion end pilot trench 11 time; At loam cake not before the slippage; The stitch of central processing unit is the short cell wall 11D near terminal groove 11, and does not contact with the contact site 231 on elastic arm 23 tops, treat the loam cake slippage after; The stitch of central processing unit promptly moves towards elastic arm 23 directions, and constitutes with the contact site on elastic arm 23 tops 231 and to electrically contact.

And terminal 20 mode in each terminal groove 11 on the pedestal 10 of packing into; Being to be packed into by the bottom surface 102 of pedestal 10, mainly is two elastic arms, the 23 insertion end pilot trench 11 with terminal 20, and aims at also two conduits 13 of insertion end pilot trench 11 with two support arms 22; When support arm 22 passes through conduit 13; Blocking part 220 on it is treated promptly to recover elasticity after blocking part 220 is through conduit 13 with slightly receiving conduit 13 compressions, and blocking part 220 root edges fasten the end face 121 at terminal groove 11 internal stops 12 immediately; Produce a non-return immediately and do to withdraw from outside the terminal groove 11, and accomplish the installation of this terminal 20 in order to restriction terminal 20.Because the edge, circular position of base plate 21 central authorities of terminal 20 is block 12 belows that are positioned at terminal groove 11; Therefore the bottom surface 122 of block 12 will stop base plate 21 formations, can prevent that just terminal 20 from excessively inserting, on the other hand; Based on aforesaid relativeness; The base plate 21 of terminal 20 will protrude in the bottom surface 102 of pedestal 10, under the constraint of the long and short cell wall 11A～11D root edge of block 12 bottom surfaces 122 and terminal groove 11, make terminal 20 be able to more positively be fixed in the terminal groove 11.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technical scheme any simple modification, equivalent variations and modification that above embodiment did.

Claims (9)

1. a socket connector is characterized in that, comprising:

One pedestal has a surface and a bottom surface, and its surface is formed with a plurality of terminal grooves, and each terminal groove also runs through the pedestal bottom surface; A wherein cell wall of terminal groove is at the outstanding block that forms of the lower end of adjacent floor again, and this block has an end face and a bottom surface, and the bottom surface of this bottom surface and pedestal is positioned on the same plane;

A plurality of terminals set up separately in the terminal groove of pedestal, and each terminal is mainly extended upward respectively by the dual-side of a base plate and forms a support arm and an elastic arm, and this bottom edge correspondence is positioned at the block below of terminal groove; Form the outstanding sheet blocking part of tilted direction beyond at least one again support arm, the root edge of this blocking part is corresponding to the end face of terminal groove internal stop; Two elastic arms bend inwards relatively again, and form a contact site respectively in top end.

2. socket connector according to claim 1 is characterized in that, said terminal be on two relative support arms respectively with mutually externally tilted direction form this towards the inner outstanding blocking part of terminal groove.

3. socket connector according to claim 2; It is characterized in that the terminal groove of said pedestal is rectangular shape, it has the elongated slot wall of two opposing parallel and the short cell wall of two opposing parallel; Wherein the lower end of a short cell wall forms this block; The end face of this block is lower than the surface of pedestal, and block further comprises the two side again, then forms a long and narrow conduit respectively between two elongated slot walls of two side and terminal groove;

The support arm of this terminal and elastic arm side by side, the width of the two addition is matched with the elongated slot wall width of terminal groove, the distance of the Distance Matching of two relative support arms two relative elongated slot walls in terminal groove.

4. socket connector according to claim 3 is characterized in that, said blocking part is a side that is positioned at support arm, and this side is the short cell wall that is formed with block on the approach end pilot trench.

5. socket connector according to claim 4; It is characterized in that; Block in the said terminal groove forms sharping in respectively in two corners of contiguous block bottom surface; Two elongated slot wall bottom corners of terminal groove also form sharping in again, and make the conduit bottom end opening between block two side and elongated slot wall be the expansion shape.

6. socket connector according to claim 5 is characterized in that, the rounded shape of base plate central authorities of said terminal.

7. the terminal structure of a socket connector mainly is that dual-side at a base plate extends upward respectively and forms a support arm and an elastic arm, it is characterized in that, forms the outstanding sheet blocking part of tilted direction beyond on wherein at least one support arm; Two elastic arms bend inwards relatively again, and form a contact site respectively in top end.

8. according to the terminal structure of the said socket connector of claim 7, it is characterized in that, on the two relative support arms respectively with mutually externally tilted direction form this towards the inner outstanding blocking part of terminal groove.

9. the terminal structure of said socket connector according to Claim 8 is characterized in that, the rounded shape of said base plate central authorities.

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