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Self-healing capacitor element and self-healing capacitor

A technology of self-healing capacitors and capacitors, applied in the field of capacitors, can solve problems such as local overheating and uneven heat conduction, and achieve the effects of reducing temperature gradients, lowering the maximum temperature, and improving temperature uniformity

Pending Publication Date: 2022-03-22
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a self-healing capacitor element and a self-healing capacitor to solve the problem of local overheating caused by uneven heat conduction in the prior art, which can reduce the temperature gradient of the outer surface and reduce the impact of operating conditions such as ambient temperature and heat radiation on the capacitor. Component influence

Method used

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] Such as Figure 1-2 As shown, the self-healing capacitor element includes: a capacitor element 101 and a thermally conductive metal layer 102;

[0032] The thermally conductive metal layer 102 is wound around the cylindrical side of the capacitor element body 101 , and at least one end edge of the capacitor element body 101 is spaced apart from at least one side edge of the adjacent thermally conductive metal layer 102 .

[0033] Optionally, the self-healin...

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Abstract

The invention discloses a self-healing capacitor element and a self-healing capacitor. The self-healing capacitor element comprises a capacitor element body and a heat-conducting metal layer, the heat-conducting metal layer is wound on the side surface of the cylinder of the capacitor element body, and the edge of at least one end part of the capacitor element body and the edge of at least one side of the adjacent heat-conducting metal layer are arranged at intervals. According to the embodiment of the invention, the temperature gradient of the outer surface can be reduced, and the influence of environment temperature, thermal radiation and other operation conditions on the capacitor element is reduced.

Description

technical field [0001] The invention relates to the field of capacitors, in particular to a self-healing capacitor element and a self-healing capacitor. Background technique [0002] At present, the internal heat of the self-healing capacitor element is mainly transferred to its surface through the polypropylene film. However, in actual operation, the self-healing capacitor element will be affected by heat radiation and heat transfer from surrounding objects. At this time, due to the polypropylene The heat conduction of the film is slow, and the area subjected to heat radiation or heat transfer cannot quickly transfer heat to other areas that are not subjected to heat radiation or heat transfer, resulting in local overheating. Contents of the invention [0003] The invention provides a self-healing capacitor element and a self-healing capacitor to solve the problem of local overheating caused by uneven heat conduction in the prior art, which can reduce the temperature grad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G2/08H01G4/002
CPCH01G2/08H01G4/002
Inventor 姚成王流火罗新刘刚熊志武薛云涛刘浩胡泰山冯瑞发廖民传梅琪
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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