CN2567918Y

CN2567918Y - Composite casing of electrical equipment

Info

Publication number: CN2567918Y
Application number: CN 02272033
Authority: CN
Inventors: 邓志明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-26
Filing date: 2002-07-26
Publication date: 2003-08-20
Anticipated expiration: 2012-07-26

Abstract

The utility model relates to a composite casing of electrical equipment. Composed of two different types of material which are combined together by the process of injection molding, the casing has the two-layer structure or the multi-layer structure. An external layer of the casing is composed of material which can be electroplated. An internal layer is composed of plastics which can not be electroplated or is nonconductive. The internal layer and the external layer are formed inside the same mould by stepped injection. The periphery of the external layer of the casing is extended into the inner layer while not protruded to the inner surface of the internal layer. The utility model provides the composite casing of the electrical equipment, and the composite casing is accorded with the insulation requirement and has the advantages of firmness and good appearance.

Description

The electrical equipment composite shell

The utility model relates to a kind of electric appliance casing of injection mo(u)lding, specifically belongs to the electrical equipment composite shell that is composited by two or more material.

Traditional electric appliance casing usually by commaterial by injection molded, attractive in appearance and shell is divided into refilling after the some injection mouldings is stitched together in order to make product design, though the effect that this method draws is attractive in appearance, complex structure, whole fastness is poor.In addition, some product with plastic casing (ABS) plating (as chromium), makes product that the texture effect of metal be arranged for good looking appearance, but in the outer surface electroplating process of shell, also make inner surface plate one deck chromium simultaneously, the creepage distance of shell is reduced, conduction produces dangerous easily.

The purpose of the utility model is exactly to overcome the deficiency that prior art exists and a kind of insulating requirements, firm electrical equipment composite shell attractive in appearance of meeting is provided.

For achieving the above object, the technical solution of the utility model is achieved in that the material of electric appliance casing by electrodepositable, ABS material for example, form the skin of shell, the internal layer of shell is by not electrodepositable or nonconducting plastics, and for example material such as PVC is injection molded, skin and internal layer are injection molded by same mould gradation, the outer periphery of shell extends in the internal layer, but the outer inner surface that does not protrude into internal layer, shell inside and outside two-layer smooth mutually by formation integral structure and surface after the injection moulding.

The utility model adopts the existing relatively electric appliance casing of electrical equipment composite shell of the injection mo(u)lding of said structure feature, taken into account safe firmly advantage attractive in appearance, for the electric appliance casing of now provides a kind of better shell mechanism, handle the integrative-structure that obtains by said structure and electric conduction phenomena can not take place, and can make multiple moulding attractive in appearance again, this point is to be even more important for electric appliance casing.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the schematic diagram of the utility model specific embodiment.

Fig. 2 is the part cut-away enlarged view of Fig. 1.

Fig. 3 is the cut-away enlarged view of another structure.

As shown in Figure 1, present embodiment be with electrical equipment composite shell structure applications on egg-whisk, this shell is combined two kinds of different materials by the method for injection moulding, forms two-layer structure.Electric appliance casing is by the material of electrodepositable, ABS material for example, form the skin 1 of shell, the internal layer 2 of shell is by not electrodepositable or nonconducting plastics, and for example PVC material etc. is injection molded, outer 1 and internal layer 2 gradation in same mould injection molded, outer 1 makes trapezoidal or the type shape by mould, the edge fit of internal layer 2 and skin 1 is also corresponding to form down trapezoidal and the character cut in bas-relief shape, and skin 1 periphery of shell extends in the internal layer 2, but outer 1 does not protrude into the inner surface of internal layer 2.Shell skin 1 selects for use the material of electrodepositable to make trapezoidal or convex shape, internal layer 2 is selected not electrodepositable or nonconducting plastics for use, PVC for example, and correspondingly with outer 1 form down trapezoidal or concave shape, this structure arrangement, at the two-layer fastness of ectonexine, this structure internal layer 2 covers outer 1 and can strengthen whole fastness effectively, thereby outer 1 adopts the material of electrodepositable can more easily change outer 1 CF, internal layer 2 adopts electrodepositable not or nonconducting plastics that the creepage distance of shell is reduced, and increases the fail safe that product uses.

As shown in Figures 2 and 3, outer 1 makes trapezoidal or convex shape and internal layer 2 are made down trapezoidal or concave shape, and this can make the structure of inside and outside a kind of mutual button of two-layer generation, and internal layer fastens skin, makes outer difficult drop-off, strengthens the whole fastness of shell.Also inside and outside two-layerly more easily be designed to desirable outward appearance because of what this structure made shell, for example can more easily handle aspect inside and outside two-layer color separation and the shaped design proper and attractive in appearance.

Above-mentioned just wherein two examples of the inside and outside two-layer combined shaped of shell because of actual needs also can be designed more combined shaped, describe in detail no longer one by one at this.

The utility model is reasonable in design because rationally choosing and structural meticulous consideration on material, thereby make shell be easier to make effect firmly attractive in appearance and the use when being applied in specific product on safer.

Claims

1, a kind of electrical equipment composite shell is characterized in that: shell is combined two kinds of different materials by the method for injection moulding, and becomes two layers or more structure.

2, electrical equipment composite shell according to claim 1 is characterized in that: electric appliance casing places the skin of shell by the material of electrodepositable, and the internal layer of shell is by not electrodepositable or nonconducting plastic injection-moulded forming.

3, electrical equipment composite shell according to claim 2 is characterized in that: described skin and internal layer are that gradation is injection molded in same mould.

4, electrical equipment composite shell according to claim 2 is characterized in that: the outer periphery of shell extends in the internal layer, and the surface is smooth mutually.

5, electrical equipment composite shell according to claim 4, it is characterized in that: skin does not protrude into the inner surface of internal layer.