CN201199564Y

CN201199564Y - Power supply connector

Info

Publication number: CN201199564Y
Application number: CNU2008200963964U
Authority: CN
Inventors: 曹永泉
Original assignee: Guizhou Space Appliance Co Ltd
Current assignee: Guizhou Space Appliance Co Ltd
Priority date: 2008-05-20
Filing date: 2008-05-20
Publication date: 2009-02-25
Anticipated expiration: 2018-05-20

Abstract

A kind of power connector, including plug and socket two parts, said plug and socket are made up of contact terminal, base, plug contact terminal and socket contact terminal include butt joint end, play fixed and middle part of the heat-dissipating function, afterbody connected with printed board, plug butt joint end extend and have interval butt joint sidewall make up each other from middle part, every butt joint sidewall has arcuate bulge of different directions, all arcuate bulge to form and dock convex closure in the sidewall corresponding department of butt joint; the socket contact terminal corresponds to the plug contact terminal, and the butt joint end of the socket contact terminal is provided with butt joint side walls which correspond to the arc bulges of the plug contact terminal in quantity and extend from the middle part to the front end. The utility model discloses contact terminal can form many line contacts during butt joint, and increase power connector contact area heat radiating area makes the contact reliably contact and connect. The method is suitable for the interconnection system of the circuit board or the bottom plate.

Description

A kind of power connector

Technical field

The utility model relates to a kind of power connector that is used for big current delivery, is applicable to the interconnection system of circuit board or base plate.

Background technology

In the interconnection of electronic circuit, power connector is requisite components and parts in the power circuit interconnection system.The contact of relative transmission signals, the contact that is applied to the big electric current of transmission in the power connector need possess lower contact resistance and good radiating condition, reduces and temperature rise control with the heat that satisfies in the big current delivery process.Therefore, how to increase in the power connector, contact contact area, area of dissipation, the heat radiation of pedestal, draught capacity, and reduce the key component that material cost becomes power connector design success or not.

Therefore, we need a kind of cost cheap relatively and can satisfy the power connector of transmission performance, heat dispersion and demand such as highly reliable.

Summary of the invention

The purpose of this utility model is in order to address the above problem, to provide a kind of and can transmit power connector big electric current, that be used for the printed board interconnection system.

This power connector comprises plug and socket two parts, described plug is made up of plug contact terminal, pedestal, socket is made up of socket contact terminal, pedestal, wherein plug contact terminal is made of butt end, the middle part of playing fixing and thermolysis, the afterbody that is connected with printed board again with the socket contact terminal, described plug butt end is for extending and have each other the butt joint sidewall composition of spacing from the middle part, each butt joint sidewall is provided with the circular arc projection of different directions, and the circular arc of all butt joint sidewall corresponding positions convexes to form the butt joint convex closure; Described socket contact terminal is corresponding with plug contact terminal, and its butt end is provided with quantity and the from the center forward end contact sidewall that extend corresponding with plug contact terminal circular arc convex closure.

Above-mentioned power connector socket contact jaw respectively contacts sidewall length and can determine according to the correspondence position of itself and plug contact jaw circular arc projection.

Be equipped with on the Plug base of above-mentioned power connector and the socket base a plurality of laterally, square hole longitudinally.

Above-mentioned plug of power connector contact and socket contact middle part transition portion are provided with shell fragment, and each corresponding pedestal is provided with corresponding draw-in groove, and shell fragment is fixed in the draw-in groove during butt joint.

Description of drawings

Fig. 1 is the structural representation of plug in the utility model power connector.

Among the figure: 1-plug, 11-contact terminal, 12-pedestal, 122,123-square hole, 124-draw-in groove.

Fig. 2 is plug contact terminal 11 structural representations among Fig. 1.

Among the figure: 11-contact terminal, 111-butt end, 1111,1112-butt joint sidewall, 112-middle part, 113-afterbody, 1111a, 1111b, 1112a, 1112b-circular arc projection, 1121,1122-shell fragment.

Fig. 3 is the socket schematic diagram in the utility model power connector.

Among the figure: 2-socket, 21-socket contact terminal, 22-pedestal, 221,222,223-square hole.

Fig. 4 is the structural representation of socket contact terminal 21 among Fig. 3.

Among the figure: 21-socket contact terminal, 211-butt end, 212-middle part, 213-tail end, 2111a, 2112a, 2111b, 2112b-butt joint sidewall, 2121,2122-shell fragment.

Fig. 5 is the docking operation figure of plug contact terminal 11 and socket contact terminal 21 in the utility model, wherein Fig. 5 (a) for butt joint before schematic diagram, Fig. 5 (b) schematic diagram during for butt joint, Fig. 5 (c) docks the schematic diagram that puts in place for contact terminal.

Among the figure: A, B-butt joint convex closure.

The stereogram of Fig. 6 the utility model power connector contact terminal butt joint, wherein Fig. 6 (a) is four convex closure docking schemes, Fig. 6 (b) is six convex closure docking schemes.

Embodiment

Below in conjunction with above-mentioned accompanying drawing example the utility model power connector is described in further detail:

As shown in the figure, the utility model power connector is made up of plug 1 and socket 2, wherein plug comprises plug contact terminal 11 and pedestal 12, socket comprises socket contact terminal 21 and pedestal 22 thereof, plug contact terminal 11 is by the butt end, play the middle part 112 of fixing and thermolysis, the afterbody 113 that is connected with printed board constitutes, described plug contact terminal 11 butt ends are for extending and have each other two butt joint sidewalls 1111 of spacing forward from the middle part, 1112, described two butt joint sidewalls respectively form the circular arc projection 1111a of two different directions by bending, 1111b, 1112a, 1112b, and the circular arc projection 1111a of butt joint sidewall 1111 and butt joint sidewall 1112 corresponding circular arc projection 1112a form a pair of butt joint convex closure A, in like manner the protruding 1111b of circular arc, 1112b forms another to butt joint convex closure B;

Plug base 12 is provided with a plurality of horizontal strokes, vertical square hole 121 that distributes, 122,123, they can strengthen the circulation of air ability of base interior, in addition, it is oblique that the plug contact terminal middle part is provided with inclination backward, play the shell fragment 1121 of fixation, 1122, pedestal 12 is provided with the draw-in groove 124 that is used for fixing contact terminal, when contact terminal 11 when the rear side forward end of pedestal 12 is packed into, shell fragment 1121 on it, in 1122 draw-in grooves 124 that just in time are stuck on the pedestal 12, so just, plug contact terminal 11 is stuck in the pedestal 12, play good fixation, simultaneously, adjust shell fragment 1121 at tool using, 1122 o'clock, can easily contact terminal 11 be taken out from pedestal 12.

Socket contact terminal 21 and contact terminal 11 structural similarities, comprise butt end 211, middle part 212, with print the tail end 213 that is connected, identical i.e. four butt

joint sidewall

2111a, 2112a, 2111b, 2112b that protract from the middle part with plug convex closure quantity are adopted in its butt end, position according to plug butt joint sidewall circular arc projection, can 2111a, 2112a setting is shorter, 2111b, 2112b are provided with longer.Its middle part is provided with

sweptback shell fragment

2121,2122 equally, when this shell fragment can be in contact terminal 21 be packed plasticity pedestal 22 into, limits the axial motion of contact terminal 21, prevents that contact terminal from taking place to deviate from from the plasticity pedestal.

Offered equally on the described socket base 22 a plurality of vertically, the square hole 221,222,223 of cross direction profiles, they amplify under the prerequisite that guarantees pedestal 22 intensity as much as possible, help air flows like this, reach good ventilation, radiating effect.

In like manner socket contact terminal 21 is packed into from the rear side forward end of pedestal 22, when contact terminal 21 assemblings put in place,

shell fragment

2121,2122 on the contact terminal 21 just in time is stuck in the draw-in groove 224 on the pedestal 22, simultaneously, adjust

shell fragment

2121,2122 o'clock at tool using, contact terminal 21 can be taken out from pedestal 22 rear sides.

Fig. 5 is the plug contact terminal 11 of power connector of the present utility model and the docking operation figure of socket contact terminal 21, as shown in the figure, in the docking operation, A is opposite with the radial motion direction of docking convex closure B because of the butt joint convex closure, when promptly docking convex closure B radial dilatation, butt joint convex closure A radial contraction, otherwise, during butt joint convex closure B radial contraction, butt joint convex closure A radial dilatation, when butt joint convex closure B contacted with socket butt end 211, butt joint convex closure B was under radial load F2 effect, by radial compression, make butt joint convex closure A radial dilatation up to by radial load F1 effect, so just, closely be adjacent to butt end sidewall 211, form 4 line contacts closely at last, shown in Fig. 5 (c).

In the above-mentioned example, the butt joint convex closure A radial dimension that is in front end is less, can play certain guide effect when butt joint,

Fig. 6 is the stereogram of

contact terminal

11,21 butt joints.The butt joint of socket contact terminal shown in Fig. 6 (a) sidewall design becomes two long two weak points, its objective is when reducing material cost, can form the tight of four lines with four convex closures of plug contact terminal 11 again contacts, increase the contact zone area of dissipation, thereby can be with in the big current delivery process, concentrate the heating energy that produces to be delivered to other non-key contact site of contact rapidly, efficiently in the contact zone by heat conducting mode, finally on these radiating surfaces, distribute, reach and make reliable contact of contact and purpose of connecting by radiation, mode such as air-cooled.

In addition, in actual use, the pedestal 22 of socket 2 provides the butt joint guide effect of

contact terminal

11,21, thus the butt joint convex closure A radial dimension of the front end of plug contact terminal 11 also can greater than, equal, less than the radial dimension of butt joint convex closure B.

In addition, the butt end promptly increases the quantity of butt joint convex closure by increasing the circular arc projection on butt joint sidewall or the butt joint sidewall, shown in Fig. 6 (b), can form six of butt ends or more multi-thread contact, reaches the purpose of further increase butt end area of dissipation.

Claims

1. power connector, this power connector comprises plug (1) and socket (2) two parts, described plug is by plug contact terminal (11), pedestal (12) is formed, socket (2) is by socket contact terminal (21), pedestal (22) is formed, described plug contact terminal (11) and socket contact terminal (12) include the butt end, play the middle part of fixing and thermolysis, the afterbody that is connected with printed board, it is characterized in that: the butt joint sidewall (1111 of described plug butt end (111) for extending and have spacing each other from the center, 1112) form, each butt joint sidewall is provided with the circular arc projection (1111a of different directions, 1111b, 1112a, 1112b), the circular arc of all butt joint sidewall corresponding positions convexes to form butt joint convex closure (A, B); Described socket contact terminal (21) is corresponding with plug contact terminal (11), and its butt end (211) are provided with quantity and plug contact terminal circular arc projection butt joint sidewall (2111a, 2112a, 2111b, 2112b) corresponding and that extend from the middle part forward end.

2. power connector according to claim 1 is characterized in that: be distributed with on described Plug base (12) and the socket base (22) and laterally reach square hole (121,122,123,221,222,223) longitudinally.

3. power connector according to claim 1, it is characterized in that: plug contact and socket contact middle part transition portion are provided with sweptback shell fragment (1121,1122,2121,2122), pedestal (12,22) is provided with corresponding draw-in groove (124,224), and shell fragment is fixed in the draw-in groove during connection.

4. power connector according to claim 1 is characterized in that: described circular arc projection quantity is 4-6, and corresponding butt joint convex closure quantity is 2-3.

5. power connector according to claim 1 is characterized in that: described socket contact jaw respectively contacts sidewall (2111a, 2112a, 2111b, 2112b) length and can determine according to the correspondence position of itself and plug contact jaw circular arc projection.