CN2112211U

CN2112211U - Power source coupler

Info

Publication number: CN2112211U
Application number: CN 91228222
Authority: CN
Inventors: 刘国基; 杨烈; 冯悦
Original assignee: Weili Group Industry Co Zhongs
Current assignee: Weili Group Industry Co Zhongs
Priority date: 1991-11-06
Filing date: 1991-11-06
Publication date: 1992-08-05

Abstract

The utility model relates to a power source coupler which comprises a connector (1), an appliance inlet (2) and the electrodes thereof, wherein, the power source coupler is characterized in that the surface of the connector (1) within the appliance inlet (2) is provided with one ring groove (3) or more. The utility model has the advantages of simple structure, convenient manufacture, safety, effective prevention of short circuit between the electrodes, etc.

Description

Power source coupler

The utility model is a kind of power coupler, and particularly a kind of have every the phase the avoided utmost point of stream annular groove and the appliances power source coupler of earth polar or zero utmost point short circuit.

Power coupler of the prior art, its connector outer surface and utensil socket surface of internal cavity bound fraction are plane (as shown in Figure 2), in use often owing to the liquid in the utensil overflows, or liquid unrestrained during to the utensil fluid injection, liquid is flow on the connector surface, and the capillarity that surface tension of liquid produced makes liquid enter into the electrode tip of connector along the slit between connector and the utensil socket, wet the insulator between the phase utmost point and the earth polar, cause the phase utmost point and earth polar short circuit, jeopardize personal safety, or short circuit between the phase utmost point and zero utmost point, the electrical equipment unit of burning utensil, parts.

The purpose of this utility model be to avoid weak point of the prior art and provide a kind of simple in structure, easy to make, can prevent interelectrode short circuit, safe and reliable power coupler effectively.

The purpose of this utility model can reach by following measure: power coupler such as Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5, include connector (1) and utensil socket (2) and electrode thereof, it is characterized in that the connector surface portion within utensil socket (2) is provided with together or one above annular groove (3).Make slit between connector (1) and the utensil socket have wide have narrow, wide length is greater than narrow length, when liquid flows to power coupler, if when entering into wide slit by narrow slit, because capillarity weakens, flow velocity is slowed down, liquid is difficult to the ladder ascending and be made of annular groove under the effect of gravity, can only be along annular groove to dirty and flow out outside the power coupler by the slit, bottom, and the connector of most of power coupler is that the head height tail is low downward-sloping when packing on the utensil socket, more increased the difficulty that liquid is creeped to electrode tip, therefore can guarantee the electrode tip that liquid can not wetting connector, thereby guaranteed between the phase utmost point and the earth polar and the insulation between the utmost point and zero utmost point mutually, reached safe and reliable purpose.

The utility model is described in further detail to utilize accompanying drawing:

Fig. 1 is the structural representation of a kind of power coupler of the present utility model;

Fig. 2 is the structural representation of a kind of power coupler of the prior art;

Fig. 3 is a kind of connector construction schematic diagram that is used for the power coupler of electric cooker of the present utility model;

Fig. 4 is that the A of Fig. 3 is to view;

Fig. 5 is that the B of Fig. 3 is to view.

In the power coupler of the present utility model of Fig. 1, (1) is connector, and (2) are the utensil sockets, is positioned at connector (1) on the outer surface of utensil socket (2) to be provided with two road annular grooves (3).

In the power coupler of the prior art of Fig. 2, (1) is connector, and (2) are the utensil sockets.

On the connector (1) of the power coupler of the present utility model of Fig. 3, Fig. 4 and Fig. 5, be provided with two road annular grooves (3); The width of annular groove (3) can be 4mm, and the interval between annular groove (3) can be 3mm; And annular groove (3) degree of depth that is positioned at the upper and lower surface portion of connector (1) can also be that the degree of depth of 1mm, side surface portion can be 0.5mm.This power coupler is applied on the electric cooker, does the sample type approval test through national household appliance inspection center and Chinese household electrical appliance inspection center, and the spilling water test is qualified fully, and insulation effect is good.

That the utility model compared with prior art has is simple in structure, easy to make, can effectively prevent interelectrode short circuit, safe and reliable characteristics.

Claims

1, a kind of power coupler includes connector (1) and utensil socket (2) and electrode thereof, it is characterized in that the surface portion of the connector (1) within utensil socket (2) is provided with together or one above annular groove (3).

2, power coupler according to claim 1 is characterized in that the lip-deep annular groove of said connector (1) (3) is 2 road annular grooves.

3, power coupler according to claim 1 and 2 is characterized in that the lip-deep annular groove of said connector (1) (3) width is 4mm, is spaced apart 3mm between each annular groove (3).

4, power coupler according to claim 3 is characterized in that the degree of depth that the lip-deep annular groove of said connector (1) (3) is positioned at the upper and lower surface portion of connector (1) is that the degree of depth of 1mm, side surface portion is 0.5mm.