Electric heating device

An electric heating device and electric heating wire technology, applied in the direction of the shape of the heating element, can solve the problems of easy aging and falling off of the insulating layer, inability to heat up quickly, and low thermal conductivity, and achieve the effects of strong hardness, low cost, and high thermal conductivity.

Inactive Publication Date: 2013-03-13
江苏第一金合金有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Copper has the characteristics of good thermal conductivity and strong ductility, but it is expensive to use in large quantities; the insulating layer is mostly composed of crystalline magnesium oxide powder with high temperature resistance and good insulation performance, but the thermal conductivity is low, and the material in the heat pipe cannot rapid heating
And after the heat pipe is used for a period of time, the insulating layer on the surface is easy to age and fall off, which brings safety hazards to the use

Method used

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Embodiment Construction

[0012] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 , figure 2 As shown, an electric heating device according to the present invention includes a heat pipe and an electric heating wire 1, the electric heating wire 1 is spirally wound on the outer wall of the heat pipe, the heat pipe is an aluminum alloy pipe 2, and the aluminum alloy pipe 2 has The copper tube has the advantages of good thermal conductivity, easy ductility, and low cost. The outer wall surface of the aluminum alloy tube 2 is provided with an outer sulfuric acid anodized film 4 . Since the sulfuric acid anodized film has the characteristics of insulation and high heat conduction efficiency, the electric heating wire 1 can be directly contacted with the aluminum alloy tube 2 for heating, thereby improving the heating energy efficiency. At the same time, the sulfuric acid anodized film has high hardness ...

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Abstract

The invention discloses a safe and rapid electric heating device, comprising a heat conduction pipe and an electric heating wire. The electric heating wire is spirally wound on the outer wall of the heat conduction pipe; the heat conduction pipe is an aluminum alloy pipe; a layer of a sulfuric acid anode oxide film is arranged on the surface of the outer wall of the aluminum alloy pipe; and the electric heating wire and the surface of the outer wall of the aluminum alloy pipe are in direct contact. The electric heating device provided by the invention has the advantages in that the electric heating wire can heat the aluminum alloy pipe through direct contact through the layer of the sulfuric acid anode oxide film arranged on the surface of the outer wall of the aluminum alloy pipe, so that the heating speed of the electric heating device can be effectively improved, and the use security of the electric heating device can be ensured.

Description

technical field [0001] The invention relates to an electric heating device. Background technique [0002] A known electric heating device, its heating principle is to conduct the heat generated by the high-temperature resistance wire to the heat-conducting tube after electrification, and heat the material in the heat-conducting tube. It is widely used in many occasions due to its convenient use and no pollution. The existing electric heating device includes a heat pipe and an electric heating wire. The heat pipe is usually made of a copper pipe, and the outer wall of the copper pipe is provided with an insulating layer. The electric heating wire is spirally wound on the outer wall of the copper pipe and contacts the insulating layer. Copper has the characteristics of good thermal conductivity and strong ductility, but it is expensive to use in large quantities; the insulating layer is mostly composed of crystalline magnesium oxide powder with high temperature resistance and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/42
Inventor 唐建业
Owner 江苏第一金合金有限公司
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