Fuel cell purging device and control method thereof

A fuel cell and control method technology, applied in fuel cells, circuits, electrical components, etc., can solve the problems of energy waste, long purge time, proton exchange membrane can not reduce the ideal humidity, etc., to avoid damage and reduce energy waste Effect

Active Publication Date: 2020-04-17
浙江锋源氢能科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But there is currently no device that can control the purging of the fuel cell according to the ohmic internal resistance. If the purging time is too short, the proton exchange membrane cannot be reduced to the ideal level. Humidity, long purge time leads to energy waste

Method used

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  • Fuel cell purging device and control method thereof
  • Fuel cell purging device and control method thereof

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Embodiment Construction

[0022] see in conjunction figure 1 , figure 2 As shown, according to the embodiment of the present application, a fuel cell purging device is used for purging the fuel cell, the fuel cell and the fuel cell purging device are arranged on the vehicle, and the fuel cell purging The device includes a control unit 10, a detection unit 29 and a purge unit. The internal resistance threshold is set by the control unit 10. When the vehicle enters the first state, the purge unit purges the fuel cell, and the detection unit 29 is used to detect the ohmic resistance of the fuel cell. Internal resistance, when the ohmic internal resistance of the fuel cell is not less than the internal resistance threshold, the purge unit stops purging the fuel cell, and by setting the control unit 10, the detection unit 29 and the purge unit, it is possible to stop the purge after the fuel cell reaches a predetermined humidity. Sweeping, to avoid damage to the fuel cell caused by the impact of low tempe...

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Abstract

The invention provides a fuel cell purging device and a control method thereof. The fuel cell purging device is used for purging a fuel cell. The fuel cell and the fuel cell purging device are arranged on a vehicle. The fuel cell purging device comprises a control unit, a detection unit and a purging unit. An internal resistance threshold value is set through the control unit. When the vehicle enters a first state, the purging unit purges the fuel cell, the detection unit is used for detecting the ohmic internal resistance of the fuel cell, and when the ohmic internal resistance of the fuel cell is not less than the internal resistance threshold value, the purging unit stops purging the fuel cell. According to the fuel cell purging device and the control method thereof, purging can be stopped after the fuel cell reaches the preset humidity, damage to the fuel cell due to low-temperature influence is avoided, and energy waste can also be reduced.

Description

technical field [0001] The present application belongs to the technical field of fuel cells, and in particular relates to a fuel cell purging device and a control method thereof. Background technique [0002] Proton exchange membrane fuel cells have two outstanding advantages of high energy conversion efficiency and environmental friendliness, and also have outstanding advantages such as fast start-up at room temperature, high specific power density, and high specific energy. It is recognized as the most promising vehicle power source. [0003] The application of fuel cells in the automotive field will inevitably face problems such as storage and cold start under low temperature conditions. According to the requirements of the test design, the fuel cell stack needs to meet the requirements of low temperature storage at -20°C and -40°C. In order to prevent the frost and ice caused by the low temperature environment from affecting the performance of the membrane electrodes and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04223H01M8/04228H01M8/04303H01M8/04537
CPCH01M8/04228H01M8/04253H01M8/04303H01M8/04634Y02E60/50
Inventor 冯翌袁蕴超王海峰祝传贺王利生
Owner 浙江锋源氢能科技有限公司
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