CN2473485Y

CN2473485Y - Electric heating thermal insulation board

Info

Publication number: CN2473485Y
Application number: CN 00239922
Authority: CN
Inventors: 吴启新; 黄伟新
Original assignee: TIANHE INTELLIGENT ELECTRONIC CO Ltd GUANGZHOU
Current assignee: TIANHE INTELLIGENT ELECTRONIC CO Ltd GUANGZHOU
Priority date: 2000-10-30
Filing date: 2000-10-30
Publication date: 2002-01-23
Anticipated expiration: 2010-10-30

Abstract

The utility model relates to a heated board used for the electric heating preservation of dish, which is mainly characterized in that an electrical heating layer is formed by winding electrically heated wire uniformly on a mica piece, therefore both enhancing the electrical efficiency and the insulating performance of the electrically heated wire. In addition, the utility model also has the function of heat preservation, and can be widely used in on-table heating.

Description

A kind of Electric heating for keeping hot for plate

The utility model relates to a kind of family expenses desktop dish Electric heating for keeping hot for plate.

Its electrothermal layer material of similar warming plate in the past or too valuable, perhaps too high being difficult to of the unreasonable structure of electrothermal layer or cost promotes or generates heat inhomogeneous or the easy short circuit of heating wire, so be difficult for accepting for market.

The purpose of this utility model is: provide a kind of and have heating wire and be evenly distributed the Electric heating for keeping hot for plate of the electrothermal layer of good insulation preformance between the heating wire pitch of the laps.

Other purposes of the present utility model comprise: warming plate safe in utilization, and holding temperature is controlled, and the warming plate waste heat distributes easily, and warming plate is not yielding, and the life-span is long etc.

First purpose of the present utility model is achieved in that a kind of Electric heating for keeping hot for plate, and it comprises: electrothermal layer (1), and insulation insulating barrier (2), panel (3), base plate (4) is characterized in that: electrothermal layer (1) is made up of around heating wire mica sheet.Because mica sheet is good insulation preformance not only, and heat conductivility might as well, certain rigidity is arranged again, therefore can guarantee mutually insulated between each pitch of the laps of heating wire with it as the winding carrier of heating wire, and can very fast the heat conduction be scattered again, not only improved electrical efficiency, and made the electric heating thermal insulation effect even.

The utility model can be perfect like this, the one-sided or bilateral of electrothermal layer (1) mica sheet (5) that reclined.The heating wire of electrothermal layer (1) is along the dentation groove coiling successively on the mica sheet edge.Warming plate is by panel (3), and electrothermal layer (1) is incubated insulating barrier (2), heat sink (6), the superimposed successively from top to bottom formation of support base plate (4) of band pin.Support base plate (4) is the nonmetallic materials with a plurality of louvres.The lead of electrothermal layer (1) is connected with controllable temperature circuit (7).Because electrothermal layer (1) itself is charged,, puts mica splittings (5) panel (3) and asking of electrothermal layer (1) and can guarantee that then panel (3) safety is not charged if charged and dangerous with the superimposed panel (3) that then can make of metal decking (3).If on electrothermal layer (1), folded mica splittings (5) is all put on following two sides, and then security performance is just even more ideal.For make heating wire not reason move unsceptered and collide and cause short circuit, be provided with at the mica sheet edge of electrothermal layer (1) the heating wire detent can guarantee normally use and move in the process heating wire can be because of moving short circuit.Heat sink (6) is made with the fast material of heat conduction, uses metal material usually, so that the useless waste heat that electrothermal layer (1) is conducted leaves as early as possible, warming plate self is not damaged downwards because of overheated the distortion.The pin that supports base plate (4) is to be used for insulation grillage on the one hand desktop directly being heated from desktop, also helps the waste heat diffusion of warming plate bottom on the other hand, and the louvre on the plate (4) is used to make the heat of heat sink (6) directly to be pulled away to air is mobile.The lead of electrothermal layer (1) is connected with the controllable temperature circuit, and for example: the transformer circuit of band transformation tap maybe can change the resistor of resistance etc., can adopt the alternating temperature circuit of automatic or manual.Purpose is to have worked as the dish cold can adopt higher temperature heating, if the dish of heat can adopt the normal temperature insulation.

Electrothermal layer (1) structure that the utility model has adopted heating wire to twine on mica splittings, the easy short circuit problem of electrothermal layer (1) heating wire and the problem of electrical conduction weak effect have been solved simultaneously, not only reduced cost but also improved heat insulation function, cooperate other above-mentioned structure perfect, warming plate of the present utility model is had on market strive power unexpectedly.

Fig. 1, the structural representation of the utility model electrothermal layer (1).

Fig. 2, iterative structure schematic diagram between the utility model electrothermal layer (1) and the mica sheet.

Fig. 3, the vertical section structure schematic diagram of a kind of warming plate of the present utility model.

Fig. 4, the vertical section structure schematic diagram of another kind of warming plate of the present utility model.

Fig. 5, the connection diagram of electrothermal layer lead of the present utility model and controllable temperature circuit.

Embodiment 1:

Panel (3) is made with aluminium sheet or corrosion resistant plate and material high temperature resistant and that heat conduction is good.Following one deck is electrothermal layer (1), is wrapped in to clamp on both sides with mica sheet on the mica sheet with heating wire again and makes the good heating layer of insulation.Descend one deck for insulation insulating barrier (2) again, make, play heat insulation effect with asbestos or high temperature resistant and insulating materials.Base plate (4) is made with plank or with metallic plate.Play base and support effect.(Fig. 3 product).

Embodiment 2:

Panel (3), heating board (1) insulation insulating barrier (2) is the same.Many one decks heat sink (6) below insulation insulation board (2) is made with aluminium or iron plate, is used for the heat of down conduction is loose by the hole of gripper shoe (4) as early as possible.Support base plate (4) and make, and a lot of louvres are arranged and feet is housed, play the effect of support with plank.(Fig. 4 product)

Claims

1, a kind of Electric heating for keeping hot for plate, it comprises, electrothermal layer (1), insulation insulating barrier (2), panel (3), base plate (4) is characterized in that: electrothermal layer (1) is made up of around heating wire mica sheet.

2, the described warming plate of root a tree name claim 1 is characterized in that: the one-sided or bilateral of the electrothermal layer mica sheet (5) that reclined.

3, root a tree name claim 1 or 2 described warming plates is characterized in that: the heating wire of electrothermal layer (1) is along the dentation groove coiling successively on the mica sheet edge.

4, root a tree name claim 1 or 2 described warming plates, it is characterized in that: warming plate constitutes by following each layer is superimposed successively: be electrothermal layer (1) below the panel (3), it below the electrothermal layer (1) insulation insulating barrier (2), below the insulation insulating barrier (2) is heat sink (6), is the support base plate (4) of band pin below the heat sink (6).

5, the described warming plate of root a tree name claim 4 is characterized in that: support base plate (4) is the nonmetallic materials with a plurality of louvres.

6, root a tree name claim 1 or 2 described warming plates is characterized in that: the lead of electrothermal layer (1) is connected with controllable temperature circuit (7).