A method, system, and apparatus for warming a fuel cell

By combining dual heating devices with temperature detection, the heating process for low-temperature start-up of fuel cells is optimized, solving the problems of excessively long stack heating time and excessive power consumption, and improving the success rate and reliability of low-temperature start-up.

CN115441007BActive Publication Date: 2026-03-17GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-17
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing methods for starting up fuel cells at low temperatures suffer from problems such as excessively long stack heating time and high energy consumption, especially with a greater risk of start-up failure in low-temperature environments.

Method used

A dual heating system (a warm-pile heating system and a warm-air electric heating system) is used in conjunction with temperature detection from temperature sensing bulbs and ambient temperature sensing bulbs. A heating strategy is formulated based on the temperature of the fuel cell stack and the ambient temperature. The heating process is optimized by combining warm-pile heating and warm-air heating.

Benefits of technology

It shortens the heating time for fuel cell low-temperature start-up, reduces power consumption, improves the success rate and reliability of low-temperature start-up, and solves the problem of uneven temperature distribution.

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Abstract

The application provides a fuel cell heating method, system and device, and the fuel cell is provided with a warm stack heating device and a warm air electric heating device for heating a fuel cell stack. The method comprises the following steps: obtaining a stack temperature sensing bag temperature and an environment temperature sensing bag temperature of the fuel cell; and determining a starting strategy of the warm stack heating device and the warm air electric heating device according to the stack temperature sensing bag temperature and the environment temperature sensing bag temperature. The problems of long stack heating time and high electric energy consumption for realizing low-temperature starting of the fuel cell in the prior art are solved.
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Citation Information

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