CN2211557Y

CN2211557Y - Thin electric heater

Info

Publication number: CN2211557Y
Application number: CN 94218802
Authority: CN
Inventors: 李敏; 刘瑞平; 谭名强; 彭应忠; 赵怀志
Original assignee: KUNMING NOBLE METAL INST CHINA NONFERROUS METAL INDUSTRY GENERAL Co
Current assignee: KUNMING NOBLE METAL INST CHINA NONFERROUS METAL INDUSTRY GENERAL Co
Priority date: 1994-08-04
Filing date: 1994-08-04
Publication date: 1995-11-01
Anticipated expiration: 2004-08-04

Abstract

The utility model relates to a thin electric heater, which is characterized in that the thin electric heater is provided with an electric insulation base plate (1), and a layer of electric conduction heat conduction film (2) is arranged on the inner surface of the electric insulation base plate (1); two thin film electrodes (3) are respectively arranged on the upper end and the lower end of the electric conduction heat conduction film; the electrodes (3) are extended to the end of the side surfaces of the base plate (1) to be respectively and integrally welded with two plugs (4); an electric insulation cover plate (5) is covered on the base plate (1) which is coated with an electric conduction heat conduction film, the periphery of the electric insulation cover plate (5) is consistent to the base plate (1) and is integrally packed with the base plate by resin. The utility model is used for warming by electric heating, and has the advantages of simple structure and technology, light weight, long service life, good safety performance of electricity and low manufacturing cost.

Description

Thin electric heater

The utility model relates to the electric heating technical field.

At present, in the electric heating field, the most popular oily hot warmer (electric heating spit of fland) that mainly contains, the PTC(positive temperature coefficient) warmer and far-infrared heater, they all pass through conduction, the mode of convection current and radiation is transmitted heat to the space, but its common feature all is that the dependent resistor silk is as heater, in use, resistance wire is easy to generate oxidation and causes and opens circuit, service life is short, poor safety performance, and, use the warmer of resistance wire as heating source, general immanent structure, the manufacturing process more complicated, raw material and components and parts are more, outward appearance takes up space also big, cost is corresponding higher, and especially far-infrared heater mainly only absorbs visible light and the near infrared light that heating wire sends, general rated power is all more than one kilowatt, and can not dabble on the quartz ampoule, otherwise easily burst, therefore, energy consumption is bigger, and security performance is relatively poor.

The purpose of this utility model provides that a kind of inherent component number is few, and structure and technology are simple, the product miniaturization, and slimming, long service life, security performance is good, and power savings is obvious, lower-cost novel slim electric heater.

Technical solutions of the utility model are to replace traditional heating wire with the conductive and heat-conductive film, thereby reach the purpose of this utility model.

The utility model feature is: the substrate (1) that the electric insulation of a thickness 0.5-5mm is arranged, one deck conductive and heat-conductive film (2) is arranged on the inner surface of substrate (1), a membrane electrode (3) is arranged respectively on the upper and lower end limit of conductive and heat-conductive film (2), end, side and two plugs (4) soldering that two strip electrodes (3) extend to substrate (1) respectively link together, thickness is that the cover plate of the electric insulation of 0.5-5mm covers on the substrate that scribbles the conductive and heat-conductive film (1), substrate (1) is peripheral consistent with cover plate (5), and is integral with the resin sealing-in.

The thickness of said substrate (1) and cover plate (5) is 0.5-1.0mm preferably, and its material is preferably fiberglass, and conductive and heat-conductive film (2) can be a kind of fibre-forming polymer conductive and heat-conductive film.

Compare with existing electric heater, the utility model has following advantage:

1, because electric conductor directly is coated on the insulated substrate material as pyrotoxin, form planar heating, the thermal efficiency obviously improves;

2, the utility model has been simplified the immanent structure and the manufacture craft of warmer, and conductor has only very thin one deck, thereby makes the product miniaturization, lightweight, and slimming is easy to carry, transportation and collection.

3, conducting polymer heat carrier conductibility of the present utility model is good, and self-temperature is not high during work, not oxidation, thus can reach heating wire, electrothermal tube warmer several times to tens times service life.

4, manufacturing cost of the present utility model is significantly less than the cost of existing electric heater.

5, the utility model security performance is good, Danger Electric shock risk can not take place.

Below by accompanying drawing the utility model is described further.

Fig. 1 is a front view of the present utility model.

Fig. 2 is that the A of Fig. 1 is to cutaway view.

Fig. 3 is the front view after the utility model removes cover plate.

(1) is substrate among the figure, and (2) are the conductive and heat-conductive films, and (3) are membrane electrodes, and (4) are plugs, and (5) are cover plates.

Embodiment 1

As shown in Figure 1-Figure 3, (1) is the glass fibre reinforced plastic insulating substrate of thick 0.5mm, it is long * wide be 580 * 400mm, scribble one layer of polymeric conductive and heat-conductive film (2) on its inner surface, its rated power is 300 watts (power supply is 220 volts of interchanges).(3) membrane electrode that forms for conductive silver slurry.(4) be plug.(5) be the fibreglass reinforced plastic cover of thick 0.5mm, its periphery is consistent with substrate (1).The two is integral with the epoxy resin sealing-in.

Embodiment 2

Version is identical with embodiment 1, and just the thickness of substrate (1) and cover plate (5) is 0.8mm, its length * wide=740 * 380mm, and the rated power of conductive and heat-conductive film (2) is 500 watts.

Claims

1, a kind of slim electric heater, the base feature is that a thickness is arranged is the substrate of the electric insulation of 0.5-5mm (1), one deck conductive and heat-conductive film (2) is arranged on the inner surface of substrate (1), a membrane electrode (3) is arranged respectively on the upper and lower end limit of conductive and heat-conductive film (2), end, side and two plugs (4) soldering that two strip electrodes (3) extend to substrate (1) respectively link together, thickness is that the cover plate (5) of the electric insulation of 0.5-5mm covers on the substrate that scribbles the conductive and heat-conductive film (1), substrate (1) is peripheral consistent with cover plate (5), and is integral with the resin sealing-in.

2,, it is characterized in that the said substrate (1) and the thickness of cover plate (5) are 0.5-1.0mm according to the slim electric heater of claim 1.

3,, it is characterized in that said conductive and heat-conductive film (2) is a kind of fibre-forming polymer conductive and heat-conductive film according to the slim electric heater of claim 1 or 2.

4,, it is characterized in that said substrate (1) and cover plate (5) made by fiberglass according to the slim electric heater of claim 1 or 2.

5,, it is characterized in that said substrate (1) and cover plate (5) made by fiberglass according to the slim electric heater of claim (3).