Novel electrical heating unit

A technology of electric heating and electric heating film, which is applied in the direction of ohmic resistance heating, electric heating devices, electrical components, etc., can solve the problems of difficult heating effect, affecting heating efficiency, and small thermal conduction power, so as to improve heat utilization rate and heating effect , the effect of reducing the temperature limit

Inactive Publication Date: 2011-05-04
潘洁英
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  • Abstract
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Problems solved by technology

However, the surface area of ​​the heat transfer part of the metal heating tube is not large, so that the heat conduction power per unit area of ​​the local area is too large, that is, the temperature of the tube will be too high, and the so-called horseshoe print scorched layer may be produced during use. It is not only difficult to use for a long time. Scraping the burnt layer, and it has a burnt smell, will bring adverse effects, one is to affect the heating efficiency, and the other is to affect the service life of the heating wire. The heating of the device is uneven, and it is difficult to

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Embodiment Construction

[0024] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, an implementation of the present invention only includes a simple alumina ceramic substrate 1 and an electric heating film 2 attached to the alumina ceramic substrate 1, and the alumina ceramic substrate 1 is a plate-shaped structure for convenience. Installed in various application places, usually, the alumina ceramic substrate 1 is made into a circle; The upper surface of the sheet 1 gradually increases to the lower surface. The boundary line of the alumina ceramic substrate 1 in the figure is not the actual boundary of the alumina ceramic substrate 1, but is set to represent the different densities of the alumina ceramic substrate 1. A line of , to clearly represent the difference in density of the alumina ceramic substrate 1 .

[0026] The electric heating film 2 does not need to completely cover ...

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Abstract

The invention relates to a novel electrical heating unit which at least comprises a substrate and an electrical heating film attached to the substrate, wherein the at least one substrate is made of aluminum oxide ceramics; the aluminum oxide ceramic substrate is in a plane-shaped structure; and at least one electrical heating film is attached to at least one surface of the aluminum oxide ceramic substrate. Thus, the electrical heating films can generate heat on one surface of the substrate, on which the electrical heating film is arranged, and the heat is evenly generated from the attached surface and transmitted through the aluminum oxide ceramic substrate so as to generate uniform heating effect.

Description

Technical field: [0001] The invention relates to electric heating equipment, specifically a newly designed electric heating unit, which has a uniform plane heating function and can conduct one-way heat transfer. Background technique: [0002] Ordinary glass-ceramics, micro-ceramics, and quartz glass sheets are commonly used in the market to coat electric heating films to make electric heaters, but this material has a low thermal conductivity, and the temperature of the electric heating film is at the desired high power density, such as per square centimeter 5 watt hours, at least above 200 degrees C when used, is not suitable for household appliances made of plastic, and also affects the safety of the control circuit of household appliances. [0003] Commonly used electric heaters are mainly made of electric heating wires. The electric heating wires are installed in metal tubes. When energized and heated, the heat is conducted through the metal tubes to achieve the purpose o...

Claims

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Application Information

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IPC IPC(8): H05B3/22
Inventor 潘洁英
Owner 潘洁英
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