CN2361013Y

CN2361013Y - Structure of terminal material band

Info

Publication number: CN2361013Y
Application number: CN 98247038
Authority: CN
Inventors: 陈翔斌; 颜木安; 欧李崇熙
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: 1998-11-25
Filing date: 1998-11-25
Publication date: 2000-01-26
Anticipated expiration: 2008-11-25

Abstract

The utility model provides a structure of terminal material bands, particularly a structure of the terminal material bands, which can prolong the service life of a cutting tool on a making process and provide a better tolerance range. The utility model comprises a plurality of terminals and material bands connecting the terminals, wherein, individual terminal comprises a connecting part which is extended with at least one contact part for electrical contact with a butt connector terminal. Connecting adjacent edges of the material band and the terminals are respectively provided with a cutting notch. When the cutting tool is used for cutting, the corner edge of the cutting tool is just positioned in the cutting notch so as to avoid breaking up because of stress concentration.

Description

A kind of structure of terminal material belt

The utility model is the structure about a kind of terminal material belt, is meant especially a kind ofly can prolong the cutting tool life-span in the manufacture process, and the structure of the terminal material belt of the preferable margin of tolerance is provided.

Use electric connector on computers at present, for the cooperate function of raising, be all highdensity deploying mode, and so-called highdensity deploying is meant that the spacing arrangement between electric connector upper terminal and terminal is less with peripheral equipment, the quantity of unit are upper terminal is more, so that transmit more message.And because this kind connector terminals very high density, the spacing between terminal and terminal is very near, if reach the due accuracy rating of product, the requirement to tool in the manufacture process is just very strict.

Use the punching method for processing for the manufacturing of electric connector terminal traditionally more, see also Fig. 1 and Fig. 2, it is that a kind of terminal design commonly used still is connected the stage on strip after continuous punching, for terminal 1 can be assembled on the insulation shell smoothly, its final step is to utilize cutting tool along the A-A tangent line of Fig. 2 strip 2 to be excised, yet, because the spacing of terminal and terminal is minimum, to accomplish along the ideal state of A-A tangent line excision strip very difficult accurately, so business circles are many cutting tool is moved in the center of terminal, shown in the B-B dotted line of Fig. 3, and make the strip broad of cutting-out, make terminal separate near back unlikely generation burr phenomenon its joining place with the strip cutting.Yet, this kind cuts mode can produce utmost point adverse influence to cutting tool, see also Fig. 4, the stereogram that do not broken away from terminal 1 as yet by cutting tool 3 cuttings for strip 2, this moment, cutting tool 3 was subjected to the shearing strength of three faces 4,5,6 of terminal 1 and strip 2 joining places simultaneously, so the cutter edge very easily bursts apart because of powerful and concentrated stressed the generation, especially in epoch of automatic industrial now, the powerful reaction force that high rotating speed stamped process produces is difficult to avoid to the impact of cutter is real.Therefore, satisfy information industry densification and develop consider simultaneously to liquidate in the manufacture process influence of scissors tool and the useful life of safeguarding cutter, the problem that need face when having become this area deisgn product towards direction more accurately.

Main purpose of the present utility model, be to provide a kind of structure of terminal material belt, cutting tool is being cut when cutting processing procedure, three shear surfaces are reduced to a shear surface, make that cutter is stressed evenly to prolong its useful life, in addition, terminal material belt be configured with a preferable width that cuts, and provide the margin of tolerance of a broad.

The purpose of this utility model can reach by the following technical programs: include the strip between several terminals and linking terminal and terminal, these terminals do not comprise a convergence part, and extend in this convergence part and to be provided with at least one contact site, with as with the electrical usefulness that contacts of butt connector terminal; The boundary ora terminalis that is connected in this strip terminal convergence part, respectively offer one and cut breach, the angle edge of cutting tool is in harmony and is positioned at this and cuts breach, thereby make terminal and strip cut out from after, the both side edges of terminal contains the shape person of at least one breach, and reaches the purpose that prolongs cutter life and the preferable margin of tolerance is provided.

The utility model compared with prior art has following advantage: the structure of this terminal material belt, cutting tool is being cut when cutting manufacture process, three shear surfaces are reduced to a shear surface, make that cutter is stressed evenly to prolong its useful life, in addition, the linking of terminal material belt structure part has a preferable width that cuts, and the margin of tolerance of a broad is provided.

The drawing of accompanying drawing is described as follows:

Fig. 1 is that existing terminal is connected the plane graph on the what strip.

Fig. 2 is the plane enlarged drawing of terminal and strip joining place among Fig. 1.

Fig. 3 is the schematic diagram that terminal and strip joining place cut among Fig. 2.

Fig. 4 is existing terminal and the schematic perspective view of strip when cutting.

Fig. 5 is the plane graph of the structure of the utility model terminal material belt.

Fig. 6 is the plane enlarged drawing of terminal and strip joining place among Fig. 5.

Fig. 7 is the schematic perspective view when cutting of being configured in of the utility model terminal material belt.

Fig. 8 is that the utility model terminal group is loaded on the stereogram that becomes an electric connector behind the insulation shell.

Be further described below in conjunction with accompanying drawing and embodiment:

See also Fig. 5, present embodiment includes several terminals 10 and is connected the strip 50 of these terminals, comprise a convergence part 11 in these terminals 10 individually, and be provided with projection 12 in this convergence part 11, and in the convergence part 11 two ends each extend and to be provided with one first contact site 13 and one second contact site 14, with indivedual as with the electrical usefulness that contacts of butt connector terminal and circuit board (not showing on the figure).Plurality of

terminals

10 and 10 of terminals are to borrow its convergence part 11 to be connected back and serial connection each other with strip 50, offer a guide hole that runs through 51 in strip 50 central authorities, and wearing of guide device guides usefulness with as continuous punching press the time.In addition, this strip 50 with the boundary ora terminalis of terminal 10 convergence parts 11, respectively offer a circular-arc breach 30 that cuts, see also Fig. 6 and Fig. 7, this cuts 30 mouthfuls of situations that can provide cutting tool 90 only to keep the face that a cuts C-C as shown in Figure 6 when cutting out from terminal 10 and strip 50 is provided, that is, when cutting tool 90 when cutting, angle edge 91 places of cutter 90 because of strip 50 to cut breach 30 unsettled fully, the both side edges that therefore can cut out terminal 10 contains notch geometry, shear strength and only cut face 92 by one on the cutting tool 90 and produced this moment, and the reaction force that this terminal 10 is produced when being cut out just imposes on equably and adds on the face of cutting 92, so the angle edge 91 of cutting tool 90 is not subjected to stress, thus be unlikely as existing design be subjected to multiple strength impact under and burst apart.In addition, it should be noted that, these big I in arc footpath that cut breach 30 provide the standard of tolerance when cutting manufacture process, that is cutter cutting the bigger permissible error scope of Shi Youyi, thereby the elasticity when having enlarged width when cutting tool is made and continuous punch designs.

See also Fig. 8, be above-mentioned terminal 10 and electric connector 80 stereograms that are assembled in an insulation shell 81 after strip separates, this insulation shell 81 comprises one and has the base 82 that a plate connects a face 83 and a plug face 85, and connect by the plate of this base 82 and to offer several spliced eyes that are through to plug face 85 86 on the face 83, in addition, the both side edges of base 82 plug face 85 is provided with a pair of

vertical wing plate

87,88, to constitute a U-shaped room 89, when these terminals 10 are mounted on insulation shell 81, the convergence part 11 of terminal 10 can be plugged in the spliced eye 86 of base 82, and its first contact site 13 patches in the U-shaped room 89 of insulation shell 81, the plate that 14 of second contact sites of terminal 10 expose to insulation shell 81 connects outside the face 83, and forms an electric connector that can be mounted on the circuit board.

Claims

The structure of 1 one kinds of terminal material belts, constitute by several terminals, strip two parts, it is characterized in that: have indivedual terminals to comprise a convergence part in several terminals, and extend in this convergence part and to be provided with at least one contact site, with as with the electrical usefulness that contacts of butt connector terminal; Strip is connected the convergence part of above-mentioned terminal and terminal can be connected in series each other; Simultaneously, strip and terminal convergence part offer at least one breach that cuts at the boundary ora terminalis that is connected, and when cutting tool is cut, and the angle edge of cutter is in harmony and is positioned at this and cuts breach.
The structure of 2 terminal material belts as claimed in claim 1 is characterized in that: the convergence part of this terminal is provided with projection.
The structure of 3 terminal material belts as claimed in claim 1 is characterized in that: the central part of this strip is provided with at least one guide hole.