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Linear heat source

A wire heat source, wire-shaped technology, applied in the direction of electric heating device, heating element material, heating element shape, etc., can solve the problems of low strength of carbon fiber paper, high density of carbon fiber paper, limited range, etc., to achieve high electrothermal conversion efficiency, Fast heat exchange and easy-to-use effects

Active Publication Date: 2009-12-30
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the use of carbon fiber paper as the heating layer has the following disadvantages: First, the thickness of carbon fiber paper is relatively large, generally tens of microns, which makes it difficult for the linear heat source to be made into a microstructure, and cannot be applied to the heating of micro devices.
Second, because the carbon fiber paper contains the paper substrate, the carbon fiber paper has a high density and a large weight, which makes it inconvenient to use the linear heat source of the carbon fiber paper
Third, due to the random distribution of pitch-based carbon fibers in the carbon fiber paper, the carbon fiber paper has low strength, poor flexibility, and is easy to break, which limits its scope.
Fourth, the electrothermal conversion efficiency of carbon fiber paper is low, which is not conducive to energy saving and environmental protection

Method used

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Embodiment Construction

[0014] The linear heat source of the technical solution will be described in detail below in conjunction with the accompanying drawings.

[0015] see Figure 2 to Figure 4 The embodiment of the technical solution provides a linear heat source 20, the linear heat source 20 includes a linear base 202; a reflective layer 210 is disposed on the surface of the linear base 202; a heating layer 204 is disposed on the surface of the reflective layer 210; Two electrodes 206 are spaced apart on the surface of the heating layer 204 and electrically connected to the heating layer 204 ; and an insulating protection layer 208 is disposed on the surface of the heating layer 204 . The length of the linear heat source 20 is not limited, and the diameter is 0.1 micron to 1.5 cm. The diameter of the linear heat source 20 in this embodiment is preferably 1.1 millimeters to 1.1 centimeters.

[0016] The linear base 202 is used to support the heating layer 204, and its material can be a hard mate...

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Abstract

The invention relates to a linear heat source, which comprises a linear substrate, a heating layer arranged on the surface of the linear substrate, and two electrodes arranged on the surface of the heating layer at intervals and electrically connected with the heating layer respectively, wherein the heating layer comprises at least one carbon nanotube long line.

Description

technical field [0001] The invention relates to a line heat source, in particular to a line heat source based on carbon nanotubes. Background technique [0002] Heat sources play an important role in people's production, life and scientific research. The wire heat source is one of the commonly used heat sources, and is widely used in electric heaters, infrared therapeutic devices, electric heaters and other fields. [0003] See figure 1 , the prior art provides a wire heat source 10, which includes a hollow cylindrical support 102; a heating layer 104 is arranged on the surface of the support 102, and an insulating protective layer 106 is arranged on the surface of the heating layer 104; two electrodes 110 are respectively arranged It is located at both ends of the bracket 102 and is electrically connected to the heating layer 104 ; two clamping parts 108 fix the two electrodes 110 and the heating layer 104 on the two ends of the bracket 102 respectively. Wherein, the hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/40H05B3/48H05B3/54H05B3/14
CPCH05B2214/04
Inventor 冯辰刘锴姜开利范守善
Owner TSINGHUA UNIV
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