CN201119027Y - PTC electric heating plate for self-service dishware furnace - Google Patents

Abstract

The utility model relates to a heating method and a structure of a buffet tableware stove, in particular to a special-purpose PTC electric heating plate of a buffet tableware stove. The PTC electric heating plate comprises an aluminum bottom plate, an aluminum cover plate and a heating component made of PTC semiconductor material, and arranged between the aluminum bottom plate and the aluminum cover plate, and insulation gaskets are arranged between the heating component and the aluminum bottom plate and between the heating component and the aluminum cover plate; a heating wire drawn by the heating component is connected with a power line. The PTC electric heating plate mainly solves the technical problems existing in the solid alcohol heating method and the structure of prior buffet tableware stove disc in aspects of heating temperature, environmental protection and security, and the operation is very simple.

Description

The special-purpose PTC electric boiling plate of self-service tableware stove

Technical field:

The utility model relates to the mode of heating and the structure of self-service tableware stove, the special-purpose PTC electric boiling plate of particularly a kind of self-service tableware stove.

Background technology:

The heated multipurpose solid alcohol of existing self-service tableware stone or metal plate for standing a stove on as a precaution against fire, the deficiency of this mode of heating is:

1, in the use, what heat usefulness is naked light, dangerous;

2, in the use, must there be the people often to add solid alcohol;

3, in the use, the naked light burning can produce pernicious gases such as carbon dioxide, and is unfavorable to environmental protection;

4, the temperature for heating is not easy to control.

The utility model content:

The purpose of this utility model is to provide a kind of self-service tableware stove special-purpose PTC electric boiling plate, mainly solve the solid alcohol-heating mode of existing self-service tableware stone or metal plate for standing a stove on as a precaution against fire and structure in the existing technical problem of heating and temperature control, environmental protection and secure context, and operation is very simple.

For addressing the above problem, the utility model is achieved in that

The special-purpose PTC electric boiling plate of a kind of self-service tableware stove, it is characterized in that: it comprises aluminum soleplate, Aluminum cover, and be arranged at the heat generating component of forming by the PTC semi-conducting material between aluminum soleplate and the Aluminum cover, be equipped with insulation spacer between this heat generating component and aluminum soleplate and the Aluminum cover; The heating electric wire that this heat generating component is drawn connects power line.

The special-purpose PTC electric boiling plate of described self-service tableware stove, it is characterized in that: this heat generating component is made of some little PTC semi-conducting material heat-generating units.

The special-purpose PTC electric boiling plate of described self-service tableware stove, it is characterized in that: this aluminum soleplate is provided with the heat generating component putting groove with two parallel trough rims; In this putting groove, there is the aluminium flake of groove to clamp little heating sheet with smooth one side, one side, two open upper end of putting groove are placed two high-temperature resistance plastice sheets, put arc elastic wire card stage casing in the aluminium flake groove, elastic wire card two ends are arranged in the aperture in the ceramic bar, elastic force by the elastic wire card clamps little heating sheet with two aluminium flakes, form a heat-generating units, and a plurality of heat-generating units are connected, form the heat generating component of different capacity with copper wire or aluminium wire.

The special-purpose PTC electric boiling plate of described self-service tableware stove, it is characterized in that: this insulation spacer is a slice polyimides or mica sheet.

Description of drawings:

Fig. 1 is the parts three-dimensional exploded view of the utility model one preferred embodiment.

Fig. 2 is the structural representation of heating component in the utility model one preferred embodiment.

Fig. 3 is the structural representation of heat-generating units in the utility model one preferred embodiment.

Fig. 4 is the mounting structure schematic diagram of heating component in the utility model one preferred embodiment.

Fig. 5 is the three-dimensional combination figure of the utility model one preferred embodiment.

Embodiment:

The utility model provides a kind of self-service tableware stove special-purpose PTC electric boiling plate, it comprises aluminum soleplate, Aluminum cover, and be arranged at the heat-generating units of forming by the PTC semi-conducting material between aluminum soleplate and the Aluminum cover, be equipped with insulation spacer between this heat-generating units and aluminum soleplate and the Aluminum cover; The heating electric wire that this heat-generating units is drawn connects power line.

Design principle of the present utility model is: use a kind of PTC semi-conducting material in the heating plate, can produce heat after this PTC semi-conducting material two ends are added a voltage.After the heating of this material reached certain temperature, this semi-conductive impedance meeting significantly increased, and causes power to descend, and caloric value reduces.The material temperature back impedance that descends can reduce again, the material heating that heats up once again.

This shows that result of use of the present utility model is:

1, heating fast;

2,, can make the heating plate long-term stability on specific temperature in use without temperature regulating device.

Further introduce the utility model below in conjunction with an accompanying drawing and a preferred embodiment:

As Fig. 1,2,3, this aluminum soleplate 3 is provided with the heat-generating units putting groove 33 with two parallel trough rims 31,32; The PTC semi-conducting material is processed into the little heating sheet 11 of A * B * Cmm, in putting groove 33, there is the aluminium flake 12 of groove to clamp little heating sheet 11 with smooth one side, one side, 33 two open upper end of putting groove are placed two high-temperature resistance plastice sheets 13,14, put arc elastic wire card 15 stage casings in aluminium flake 12 grooves, elastic wire card 15 two ends are arranged in the aperture in the ceramic bar 17,18, elastic force by elastic wire card 15 clamps little heating sheet 11 with two aluminium flakes 12, forms a heat-generating units 1 thus.And with copper wire or aluminium wire 16 a plurality of little heat-generating units are connected, form the heat generating component (Fig. 2) of different capacity.In the specific implementation process, the Adjustable structure of heating plate is whole to be rectangle, octangle, circle.By adding the power that heating sheet quantity and connected mode can change heating plate.

See also Fig. 1 again, on the medial surface of aluminum soleplate 3, place insulation spacer 2 (as: a slice polyimides or mica sheet), heat generating component is positioned on polyimides or the mica sheet.The Aluminum cover 5 inboard same insulation spacers 4 (as: a slice polyimides or mica sheet) of placing.During assembling, Aluminum cover 5 is inserted in the aluminum soleplate 3, one side of heat generating component is sealed with high temperature silicon sheet rubber 62, with screw high-temperature resistance plastice sheet 14 is fixed in aluminium sheet one side, the aluminium sheet opposite side is fixed a high temperature plastics terminal box 7, and the heating electric wire of heat generating component is connected on the binding post in the high temperature plastics terminal box 7, the another side of the binding post line 8 of connecting with the mains, the earth connection of power line 8 is connected in aluminium sheet, the upper and lower covers of terminal box 7 is fixed with self-tapping screw.Be assembled into a complete heating plate thus, as Fig. 4.

Among this embodiment, the effect of polyimides or mica sheet is high temperature resistant, insulation, heat conduction; The aluminium flake on heating sheet two sides can be fast conducts to the heat of heating sheet on the outer aluminium sheet; The effect of pottery bar is to isolate heat-generating units.

Being preferred embodiment of the present utility model only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be technology category of the present utility model.

Claims (4)

1, the special-purpose PTC electric boiling plate of a kind of self-service tableware stove, it is characterized in that: it comprises aluminum soleplate, Aluminum cover, and be arranged at the heat generating component of forming by the PTC semi-conducting material between aluminum soleplate and the Aluminum cover, be equipped with insulation spacer between this heat generating component and aluminum soleplate and the Aluminum cover; The heating electric wire that this heat generating component is drawn connects power line.

2, the special-purpose PTC electric boiling plate of self-service tableware stove according to claim 1, it is characterized in that: this heat generating component is made of some little PTC semi-conducting material heat-generating units.

3, the special-purpose PTC electric boiling plate of self-service tableware stove according to claim 2, it is characterized in that: this aluminum soleplate is provided with the heat generating component putting groove with two parallel trough rims; In this putting groove, there is the aluminium flake of groove to clamp little heating sheet with smooth one side, one side, two open upper end of putting groove are placed two high-temperature resistance plastice sheets, put arc elastic wire card stage casing in the aluminium flake groove, elastic wire card two ends are arranged in the aperture in the ceramic bar, elastic force by the elastic wire card clamps little heating sheet with two aluminium flakes, form a heat-generating units, and a plurality of heat-generating units are connected, form the heat generating component of different capacity with copper wire or aluminium wire.

4, according to claim 1 or the special-purpose PTC electric boiling plate of 2 or 3 described self-service tableware stoves, it is characterized in that: this insulation spacer is a slice polyimides or mica sheet.

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