CN2145458Y

CN2145458Y - Tri-power plug

Info

Publication number: CN2145458Y
Application number: CN 92234918
Authority: CN
Inventors: 苏敦礼
Original assignee: Gem Terminal Industry Co Ltd
Current assignee: Gem Terminal Industry Co Ltd
Priority date: 1992-09-30
Filing date: 1992-09-30
Publication date: 1993-11-03
Anticipated expiration: 2002-09-30

Abstract

Disclosed is a tri-pole power plug, comprising a culvert sleeve and a base body. Corresponding jacks which appear as a triangle and inwardly exposed polar pieces are arranged on the hollow bores of the culvert sleeve. The tri-pole power plug is characterized in that the culvert sleeve and the base body are integrally formed; sagittal clamping localization can be formed by an elastic piece which is arranged on the sliding chute of the base body and the port of a plane at the outwardly exposed terminal of a polar hole by matching with the groove and the protruded buckle of the polar pieces, so that good conducting effects can be obtained after the plug is coated and formed, and production capacity can be improved by reducing the number of forming times and processing time.

Description

Tri-power plug

Three-terminal polarized plus plug and socket in the use, because of having fabulous fail safe, thus be widely used in computer, as shown in Figure 6.Its main feature is to make the exposing among the culvert cover B that pole piece A ' is hidden in the bonding part of plug A, and socket C front end then can cooperate and inserts this culverts and overlap among the B, makes power turn-on.

The structure of commonly using three-terminal polarized plus plug comprises and contains cover 1 and utmost point seat 2 two parts that it contains cover 1 part by the same material integrated injection molding as shown in Figure 7, cooperates the utmost point seat 2 that is provided with pole piece 21 to be made of one piece in addition again and is plug.It is made is to give injection mo(u)lding on the utmost point seat internal mold and form utmost point seat 2 among Fig. 7 manually three pole pieces 21 are inserted into earlier, upper and lower end trip 22 clips by utmost point seat 2 are fixing on the tongue piece 12 of containing cover 1, three pole pieces 21 then pass jack 11 respectively, and give injection mo(u)lding more according to this, become whole plug.The shortcoming of this plug construction is, at first must be and become utmost point seat 2 manually pole piece 21 is inserted on the utmost point seat internal mold injection mo(u)lding again, yet because of there is no the design that makes pole piece 21 suitably fixing on the internal mold, the influence of the front and back position deviation that causes so pole piece 21 is subjected to artificial the plant easily when planting, thereby cause after the 1 part injection mo(u)lding of culvert cover becomes plug, when cooperating with the plant of utmost point seat, easily produce the loose contact situation, make quality impaired; Because of the moulding of plug, comprise the moulding of containing cover 1 part, utmost point seat 2 parts and plug integral part again, the processing and forming more than three times must be arranged at least, so on process time of making and cost, the neither economic principle that meets.

Thus, easily produce artificial plant offset deviation problem at pole piece 21, the design of bridge chair 3 is as shown in Figure 8 arranged then, wherein this bridge chair 3 has three grooves 31 for pole piece 21 plants, and is provided with flange 32 in groove 31 front end appropriate positions, and this flange 32 can form fastenings with the groove 23 of pole piece 21 and cooperate, make pole piece 21 can reach locating effect really, unlikely generation pole piece 21 offset phenomenas cooperate culvert cover 1 to give injection mo(u)lding together in addition again, make it to become whole plug construction.Yet, the design of this bridge chair 3, consider that point only is that thereby easily producing the front and back position deviation at pole piece in the above-mentioned utmost point seat 2 21 causes on the problem of power supply loose contact, therefore, its overall structure combination is still and contains cover 1 and the moulding separately of bridge chair 3 parts, moulding together again, do not seeing improvement than class formation yet on the number of times of moulding with on process time, so its design still has the imperfection part.

Therefore, the purpose of the utility model design, be that joint is contained cover to be given one-body molded with the pole piece pedestal, by the plane port of shell fragment on the pedestal chute and utmost point hole exposed junction, cooperate the groove and the prominent button of pole piece, form sagittal clip location, after making plug Overmolded, can obtain to commonly use the better conductive effect of plug, and its processing and forming number of times minimizing, the effect of increasing productivity had.

About architectural feature of the present utility model and technological means, purpose and effect, can cooperate graphic being described as follows.

Fig. 1 is a stereogram of the present utility model.

Fig. 2 is a profile of the present utility model.

Fig. 3 is that longitudinal profile of the present utility model is implemented illustration.

Fig. 4 is that horizontal section of the present utility model is implemented illustration.

Fig. 5 is the complete plug outside drawing of the utility model moulding.

Fig. 6 is the embodiment schematic diagram of three-terminal polarized plus plug and socket.

Fig. 7 is an exploded view of commonly using structure one.

Fig. 8 is an exploded view of commonly using structure two.

See also Fig. 1 and Fig. 2.The utility model plug body engages culvert cover 4 by front end and pole piece pedestal 5 constitutes, and culvert cover 4 is provided with and cooperates the socket front end to plug together hollow endoporus 41 partly, and three jacks 42 are arranged on the diapire of endoporus 41, and jack 42 is the triangle corresponding relation, can pass for pole piece 61; Main feature of the present utility model is: front end engages culvert cover 4 parts can be one-body molded with pole piece pedestal 5, wherein this pedestal 5 is provided with three chutes 51, for pole piece 61 slide guides, there is inner fovea part 50 appropriate position of this external chute 51, this inner fovea part 50 is provided with oblique shell fragment 511, shell fragment 511 has the effect that makes pole piece 61 fastenings, in addition, shell fragment 511 front ends are provided with utmost point hole 512, this utmost point hole 512 communicates with the jack 42 of containing cover 4, for passing, pole piece 61 reaches in the endoporus 41 of containing cover 4, even also pole piece 61 is hidden in the culvert cover 4; Have, can locate really for guaranteeing pole piece 61, the exposed junction in utmost point hole 512 forms a plane port 513, for prominent button 611 fastenings of pole piece 61.

During assembling, because pole piece 61 is corresponding to pedestal 5, so after it was set, as shown in Figure 3, this pole piece 61 can be inserted to containing cover 4 directions by chute 51, after the insertion, shell fragment 511 on the chute 51 is stuck on the groove 612 of pole piece 61 ends, and the elastic reaction when providing pole piece 61 to insert owing to 511 on shell fragment is subjected to oblique shell fragment 511 clips when extracting, can't extract, so can make pole piece 61 reach locating effect.In addition, the both sides, groove 612 the place ahead of pole piece 61 are formed with

prominent button

611, and 611 plane ports 513 with utmost point hole 512 exposed junctions of this prominent button form location effect (as Fig. 4), that is pole piece 51 inserts so far, can't insert forward again, thereby can reach the accurate in locating relation.Therefore thus, pole piece 61 is subjected to the clip of forward and backward, can not produce any displacement again, thereby coats pedestal 5 and pole piece 61 again through single injection-molded when forming a complete three-electrode power plug (as Fig. 5), can obtain preferable conductive effect.

Its major advantage of whole attaching plug of the present utility model is: can be one-body molded owing to contain cover with the pole piece pedestal, therefore needn't indivedual again moulding contain cover, bridge chair or utmost point seat, and can reduce the one-shot forming manufacturing procedure, saved the number of times and the time of processing and forming.Whether really have, the pedestal chute is provided with the plane port of shell fragment and utmost point hole exposed junction again, can cooperate the groove and the prominent button of pole piece respectively, forms good positioning relation, needn't note pole piece location again, and after being shaped to complete plug, its conductive effect is better.

In sum, no matter the utility model is with regard to purpose effect, technological means, and it is good all comparatively not commonly using the person, and this plug body is the one-shot forming structure of formula as a whole, also is not have in the prior art.

Claims

A kind of three-electrode power plug, be made of front end joint culvert cover and pole piece pedestal, wherein this culvert is overlapped to have and is cooperated socket to plug together hollow endoporus partly, and three jacks that are the triangle corresponding relation are arranged on the diapire of endoporus, pass for pole piece, and pedestal is positioned at the side of diapire; It is characterized in that: described culvert cover and the pole piece pedestal part that is formed in one, described pedestal is provided with three chutes, and the appropriate position at chute has inner fovea part respectively, this inner fovea part is provided with oblique shell fragment, the shell fragment front end is provided with utmost point hole, the jack of the described culvert cover of this utmost point Kong Bingyu communicates, and the exposed junction in its utmost point hole is a plane port; Described pole piece is inserted in the described chute, and the groove of pole piece is by oblique shell fragment clip, and its prominent button is then located with described planar ends interruption-forming, makes this pole piece be subjected to sagittal clip location.