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Line heat source

A linear heat source and linear technology, applied in the direction of electric heating devices, heating element materials, heating element shapes, etc., can solve the problems of low strength carbon fiber paper, high density and heavy weight of carbon fiber paper, and achieve high electrothermal conversion efficiency and heat exchange The effect of high speed and low thermal resistance

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 a heating element 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

[0019] The linear heat source provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0020] see Figure 2 to Figure 4 , the embodiment of the present invention provides a linear heat source 20, the linear heat source 20 includes a linear support structure 202; a reflective layer 210 is disposed on the surface of the linear support structure 202; a heating element 204 is disposed on the surface of the reflective layer 210 ; two electrodes 206 are arranged at intervals and electrically connected with the heating element 204 ; and an insulating protection layer 208 is arranged on the surface of the heating element 204 . The length and diameter of the wire heat source 20 are not limited. Preferably, the diameter of the wire heat source 20 is 0.1 micron to 1.5 cm. The diameter of the linear heat source 20 in this embodiment is 1.1 millimeters to 1.1 centimeters.

[0021] The linear support structure 202 is used to suppor...

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Abstract

The invention relates to a line heat source. The line heat source comprises a linear support structure, a heating element which is arranged on the surface of the linear support structure, and two electrodes which are arranged at interval and respectively connected with the heating element, wherein, the heating element comprises a carbon nanotube structure.

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 bracket 102; a heating element 104 is arranged on the surface of the bracket 102, and an insulating protective layer 106 is arranged on the surface of the heating element 104; two electrodes 110 are respectively arranged It is located at both ends of the bracket 102 and is electrically connected to the heating element 104 ; two clamping parts 108 fasten the two electrodes 110 and the heating element 104 to the two ends of the bracket 102 respectively. Where...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/40H05B3/14B82B1/00
CPCH05B2214/04
Inventor 冯辰刘锴王鼎姜开利刘长洪范守善
Owner TSINGHUA UNIV
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