CN2278911Y - Thermoelectric ceramic membrance far infrared radiator - Google Patents

Abstract

The utility model relates to a thermoelectric ceramic film far infrared radiator which is composed of an electric heating pipe, etc. One layer of transparent semiconductor conducting film is formed at the outer surface of a high aluminum ceramic pipe. Both ends of the high aluminum ceramic pipe are respectively provided with a silver electrode. The utility model has the advantages of high thermal efficiency, energy saving, electricity saving, long service life, and stable performance. The utility model has a performance for automatically limiting temperature. The utility model solves a plurality of dead problem when irregular shapes are baked.

Description

The ceramic electrothermal film far infrared radiator

The utility model relates to a kind of ceramic electrothermal film far infrared radiator, is a kind of directly-heated type electrical heating elements that is rapidly heated.Belong to heating process and come drying solid material or goods field, ICL is: F26B3/30.

As everyone knows, widely used in the market carborundum plate, electric heating tubing heating all is that resistance wire is enclosed in indirect type heater element in the specific medium.Because the power supply heat sinking face is little, and will lean on other object indirect heat transfers between the heating object, in the electric heating transfer process, because the heat that electric energy produced can not be passed to heating object very soon, cause on the element heat to be concentrated, it is very red-hot that element itself becomes, and the part of electric energy becomes luminous energy and scatters and disappears.Therefore, its thermal efficiency is subjected to the restriction of this body structure and reduces.And for example Chinese utility model patent (No. 88210943) discloses a kind of " oozing assorted stainless steel far infrared radiation device ".Its structure is: be made up of shell, radiant panel, resistance wire, heat-insulation layer.The assorted stainless steel radiant panel that oozes of band reinforcement is fixed on the casing frame, and resistance wire passes porcelain tube and is fixed between radiation plate and the heat-insulation layer by support.Its feature is: compares with the far infrared radiation device that materials such as present carborundum, pottery, quartz, zircon sand are made, has that far infrared radiation is strong, mechanical strength and a thermal efficiency height, and Heat stability is good, easy to maintenance, advantage such as the life-span is long.But it equally also exists the weak point in the above technology, and promptly the thermal efficiency is subjected to the restriction of this body structure and reduces.

The purpose of this utility model is just in order to solve weak point of the prior art, and proposed a kind of " ceramic electrothermal film far infrared radiator ".This ceramic electrothermal film far infrared radiator is to make conducting film on the ceramic matrix surface.Be planar, form to greatest extent the width of cloth with heating object and penetrate face, heat transfer resistance is little, and heat can be passed to heating object with heat immediately during the energising heating.

The purpose of this utility model is achieved in that

The ceramic electrothermal film far infrared radiator is made up of heating tube etc.Outer surface at the high alumina ceramic pipe forms one deck conductive layer and at its two ends silver electrode is housed.Conductive layer is a kind of transparent semiconductor conducting film.

The utility model has a width of cloth accompanying drawing, is most preferred embodiment of the present utility model, also can make the accompanying drawing of specification digest.

Fig. 1, be structural representation of the present utility model.

The utility model compared with prior art has following advantage: 1. planar heating quick heating, thermal effect Rate height, energy saving; 2. the life-span long, stable performance; 3. has auto-temperature-limiting character; Do not have when 4. using Naked light, safe and reliable; 5. solved some Dead Core Problems in the irregularly shaped baking.

Below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described further:

Most preferred embodiment of the present utility model as shown in Figure 1, the ceramic electrothermal film far infrared radiator is a kind of directly-heated type electrical heating elements that is rapidly heated, this radiator is to adopt the mixture spray fusing of multiple oxide semiconductor material on high alumina ceramic pipe 3, on the surface of earthenware 3, form one deck conductive layer as thin as a wafer---transparent semiconductor conducting film 2, the strong adhesion of this conducting film and earthenware 3, film body hardness reach 7～8 grades of Mohs.Extremely strong anti-oxidant, resistance to chemical attack, stable performance, life-span length, quick heating, electric conversion efficiency height are arranged.This kind transparent semiconductor conducting film is on sale in Beijing Solar Wind Electric Heating Tech. Development Center.Silver electrode is equipped with at two ends at earthenware 3.Constitute the ceramic electrothermal film far infrared radiator.

The ceramic electrothermal film far infrared radiator is widely used in industry, agricultural etc. the low-temperature heat field of hitting.Also can in the domestic life field, develop various series of products simultaneously.Solved that the easy oxidation of resistance wire class heating in above-mentioned electrical heating application, the thermal efficiency are low, the far infrared radiation energy is with increasing problems such as decay, component life is short service time.Be industry, the renewal product of resistance wire class heating in the low-temperature heat field in the agricultural.

The important technological parameters of ceramic electrothermal film far infrared radiator:

1, operating temperature: 0 ℃～600 ℃ adjustable;

2, peak energy wavelength: 3 μ～5 μ;

3, operating voltage: 0V～380V AC and DC;

4, electric conversion efficiency:＞90%;

5, linear expansion coefficient:＜5.4 * 10 ^-6/ ℃;

6, thermal response speed:＜4 minutes (being warming up to 550 ℃) by indoor;

Color when 7, working: dead color;

8, service life:＞10000 hours.

Claims (2)

1, a kind of ceramic electrothermal film far infrared radiator is made up of heating tube etc., it is characterized in that: form one deck conductive layer (2) and silver electrode (1) is housed at its two ends at the outer surface of high alumina ceramic pipe (3).

2, ceramic electrothermal film far infrared radiator according to claim 1 is characterized in that: said conductive layer (2) is a kind of transparent semiconductor conducting film.

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