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Method and system for judging fault of cooling fan

A heat dissipation fan and heat dissipation fan technology, which is applied in mechanical equipment, machine/engine, pump control, etc., can solve the problem of low detection efficiency and achieve the effect of improving detection efficiency

Inactive Publication Date: 2020-11-24
维谛新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method and system for judging the failure of the cooling fan, so as to at least solve the technical problem of low detection efficiency in the process of detecting the failure of the cooling fan in the prior art

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  • Method and system for judging fault of cooling fan
  • Method and system for judging fault of cooling fan
  • Method and system for judging fault of cooling fan

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Embodiment 1

[0044] According to this application, provided as figure 1 The method shown is used to determine the failure of the cooling fan. figure 1 is a flowchart of a method for determining a cooling fan failure according to an embodiment of the present invention.

[0045] Step S102, obtaining the pressure difference at different detection positions caused by the cooling fan of the cooling fan;

[0046] In the above step S102 of the present application, the method for determining the failure of the heat dissipation fan provided by the embodiment of the present application can be applied to the monitoring scenario of whether the heat dissipation fan that provides the air cooling heat dissipation function fails when the power module of the converter is air-cooled for heat dissipation. , wherein the heat dissipation fan is located in the heat dissipation air duct and is located on one side of the power module of the converter;

[0047] The detection position includes: the position where...

Embodiment 2

[0154] According to an embodiment of the present invention, a system embodiment for judging the failure of a cooling fan is provided. This application provides the following Figure 8 The system shown is used to determine the failure of the cooling fan. Figure 8 is a schematic diagram of a system for determining a cooling fan failure according to an embodiment of the present invention.

[0155] The system for judging the failure of the heat dissipation fan provided by the embodiment of the present application includes: a converter power module (82), a heat dissipation fan (84), a heat dissipation air duct (86) and a differential pressure switch (88). The converter power module (82) is located on one side of the cooling fan, the cooling fan (84) and the converter power module (82) are located in the cooling air duct (86), and the detection of the differential pressure switch (88) and the cooling fan (84) The position connection is used to determine that the heat dissipation f...

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Abstract

The invention discloses a method and a system for judging a fault of a cooling fan. The method comprises the steps that pressure difference values, caused by a cooling fan body of a cooling fan, at different detection positions are obtained; whether the pressure difference value is smaller than a threshold value is judged; and if the judgment result is yes, it is determined that the cooling fan breaks down. According to the method, the technical problem of low detection efficiency in the fault detection process of the cooling fan in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of electrical technology, in particular to a method and system for judging the failure of a cooling fan. Background technique [0002] The power module of the high-power converter is a common component of direct / alternating power conversion equipment in industrial applications. During use, the power module of the high-power converter will generate heat due to operation. When the temperature is higher than the safe limit, It will affect the normal operation of the power module of the high-power converter; [0003] In related technologies, the power modules of high-power converters mainly use air cooling for heat dissipation. When using air cooling to cool down the power modules of high-power converters, it is necessary to monitor the running status of the cooling fan in real time to prevent the cooling fan from malfunctioning. The power module of the high-power converter is overheated and damaged; [0004] Am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
CPCF04D27/001
Inventor 李佳谭超
Owner 维谛新能源有限公司