CN2178392Y

CN2178392Y - Power supply plug internal box

Info

Publication number: CN2178392Y
Application number: CN 93242204
Authority: CN
Inventors: 苏敦礼
Original assignee: Gem Terminal Industry Co Ltd
Current assignee: Gem Terminal Industry Co Ltd
Priority date: 1993-10-11
Filing date: 1993-10-11
Publication date: 1994-09-28
Anticipated expiration: 2003-10-11

Abstract

The utility model relates to a power supply plug internal box. An end opening through which the terminal passes (the terminal is fixed by the end opening) is arranged in the terminal seat of the box body of the plug. A clamp piece is arranged at the outside of the end opening. A corresponding clamp groove is arranged at the end of the terminal. When the terminal is inserted in the end opening, the clamp piece is bounced to the clamp groove, so that the terminal seat and the terminal are close connected. After the primary fixation and the injection moulding for the integration, the back wall surface of the terminal seat is covered with plastic, so that an injection molding is saved for the processing program that the terminal is inserted at the terminal seat. In addition, the terminal is changed from entity columnar shape to a hollow columnar shape folded by a metal sheet. Without influencing the effect of the electric conduction of the terminal, the utility model can save materials. The box body of the plug (which is steady conjunction and saves materials) is composed of the structure.

Description

Power supply plug internal box

The utility model relates to a kind of attaching plug inner box.

Figure 1 shows that the structure of commonly using the plug inner box, it mainly comprises an end seat 11 and terminal 12, three corner appropriate locations are provided with three rectangle terminals 13 that can supply terminal 12 to plant in its middle-end seat 11, end seat 11 central authorities establish a steam vent 14, and end seat 11 belows are provided with two ends and give prominence to and the appearance line piece 15 of concavity; Terminal 12 is a solid cylinder, and terminal 12 proximal end places are groove 17 respectively up and down by terminal 12 a part of side faces of hold seat 11 to coat.This commonly uses plug inner box fabrication and processing mode, is terminal 12 is fixed to earlier in the die holder of end seat 11, and after waiting to inject plastics in the die holder and doing solid moulding, terminal 12 promptly is overlying in the stomidium 13 of end seat 11 by folder.Because terminal 12 ends are the grabbing property of each recessed end 17 up and down, makes closely clad terminal 12 of plastics.Finish after preliminary the fixing of end seat 11 and terminal 12, plug electric wire one end is attached to the end of terminal 12, and electric wire holds the groove that holds in the line piece 15 through aforementioned terminal below to draw in addition, to hold seat 11 and terminal 12 to be fixed in the box body die holder again, plastics in the box body die holder to be injected do solid after, a plug box body.Wherein, because plastics are when injecting the box body die holder fast, the air in the box body die holder needs to discharge, and therefore is reserved with steam vent 14 in end seat 11.On the whole, the above-mentioned plug inner box of commonly using has two shortcomings suddenly to wait to improve:

1. above-mentioned terminal 12 is made by solid cylinder, as the usefulness of conduction current, too waste material.

2. above-mentioned plug box body structure must be through twice injection moulding program, difficulty comparatively in the making, and mortality is higher, easily causes between terminal 12 and the end seat 11 in conjunction with built on the sand, and conduction current is stablized in influence.

Therefore, a kind of plug inner box structure that can effectively overcome above-mentioned shortcoming should be arranged, so, after repeatedly studying, improving, attaching plug inner box of the present utility model has been proposed, its objective is and borrow structure setting of the present utility model, make it to provide the plug box body to make more practical attaching plug inner box in more economic and the use.

Following conjunction with figs. illustrates structure of the present utility model, characteristics and embodiment, so that the utility model is had further understanding.

Fig. 1 is a sectional view of commonly using plug inner box structure;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 is the expansion schematic diagram before the terminal moulding of the present utility model;

Fig. 4 is the schematic diagram of end seat clip terminal of the present utility model;

Fig. 5 is one-step forming figure just of the present utility model;

Fig. 6 is an enforcement illustration of the present utility model.

See also Fig. 2, the structure of the attaching plug of the utility model shown in figure inner box, it mainly comprises an end seat 21 and terminal 22, wherein, three corner appropriate locations are provided with three rectangle stomidiums 23 that can supply terminal 22 to plant in the end seat 21, stomidium 23 inner edge sides are established a drawing piece 26, and end seat 21 central authorities establish a steam vent 24, and end seat 21 belows are provided with that two ends are outstanding, the appearance line piece 25 of concavity.Please cooperate shown in Figure 3ly, terminal 22 is hollow cylinders that form through writing that surpasses all the others with the metal sheet as figure, and terminal 22 ends are through pressing the Zhe program, forms that left and right each a slice is supported post 27, a draw-in groove 29, closes sheet 28 and and suppresses roll film 30.The fabrication and processing mode of the utility model plug box body is, at first terminal 22 is inserted stomidium 23, this moment, the drawing piece 26 of stomidium 23 inner edges was pressed, when the draw-in groove 29 of terminal 22 ends passes through drawing pieces 26, drawing piece 26 springs into then in the draw-in groove 29 and fixes, and terminal 22 terminal two supports post 27 and props up end seat 21 walls simultaneously, so terminal 22 and end seat 21 are preliminary in conjunction with fixing, it is the fixing kenel of portion just, sees also Fig. 4.

See also shown in Figure 5.After above-mentioned preliminary fixing, again electric wire 31 is inserted in the compacting roll films 30, behind the urgent clipping electric wire 31, electric wire 31 promptly is combined as a whole with terminal 22, and electric wire 31 is passed by holding in the line piece 25, the electric wire 31 outer one deck gum covers 32 that cover.

Behind the preliminary connecting shaping of above-mentioned member, will hold seat 21 fixing again, and with box body die holder clamping, injected plastic in the box body die holder.Because of air in the box body die holder must be discharged, so end seat 21 central set steam vents 24 just provide a discharge line.The purpose of sheet 28 is closed in setting, is to prevent that plastics from injecting in the hollow body of terminal 22.After plastics are done solid moulding, a plug box body.

The plug specification in visual country variant of above-mentioned box body or area, and select difform die holder for use.

See also Fig. 6, this kind box body die holder cooperates structure of the present utility model, produces plug as shown in the figure.

The utility model has following advantages on structure arranges:

1. terminal 22 is with the hollow rectangular post of metallic plate through pressing Zhe to form, than the terminal 12 of solid cylinder, and in the situation that does not affect the electric current conduction, the consumption that more can save material.

2. utilize the drawing piece 26 of stomidium 23 outer rims in the end seat 21 and the draw-in groove 29 of terminal 22 ends to fix mutually, and utilize left and right two of terminal 22 ends to support post 27, make terminal 22 and end seat 21 form preliminary combination, replace the injection molding of commonly using, can save the worker and the material of single injection-molded, and the steadiness of

terminal

22 and 21 combinations of end seat can be provided, and the reliability of conduction of current.Thereby the utlity model has practical value.

Claims

A kind of attaching plug inner box comprises an end seat and a terminal, it is characterized in that:

Three corner appropriate locations are provided with three the rectangle stomidiums that can plant for terminal in described end seat, and this stomidium inner edge side is established a drawing piece, and end seat central authorities establish a steam vent, and end seat below is provided with that two ends are outstanding, the appearance line piece of concavity;

Described terminal is with the hollow cuboid of a metal sheet through pressing Zhe to form, terminal ends make two support post, a draw-in groove, closes a sheet and a compacting roll film, wherein:

Described draw-in groove is positioned at described terminal ends one side, and after terminal inserted stomidium, draw-in groove was corresponding to drawing piece and fixing mutually;

Described two are supported post respectively by the extension of terminal draw-in groove both sides, and after terminal inserted stomidium, these two were supported post and then prop up an end wall;

The described sheet that closes is positioned among the described terminal ends aperture, and formation stops;

Described compacting roll film is positioned at described terminal ends afterbody, after electric wire is placed in one, can forms compacting and fit.