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A fuel cell thermal management system and method

A thermal management system, fuel cell technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as inability to follow real-time operating conditions and inability to ensure stack safety, and achieve lower power requirements, lower energy consumption, and ensure safety effect

Active Publication Date: 2020-02-21
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of the above method is that it is impossible to dynamically and reasonably control the ion concentration of the coolant according to the real-time working conditions, and thus the safety of the stack cannot be guaranteed.

Method used

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  • A fuel cell thermal management system and method
  • A fuel cell thermal management system and method

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Embodiment Construction

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of desc...

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Abstract

The invention discloses a fuel cell thermal management system and method, and belongs to the technical field of new energy batteries. The fuel cell thermal management system comprises a fluid drivingdevice, a flow control device and a conductivity measuring device; cooling liquid conveyed by the fluid driving device flows through the first branch and the second branch, converges and flows via a fuel cell stack, and returns to the fluid driving device; the first branch is provided with a deionizer; the flow control device is configured to adjust the flow of the cooling liquid flowing through the first branch and the second branch, and the conductivity measuring device is configured to measure the conductivity of the cooling liquid. The conductivity measuring device measures the conductivity of the cooling liquid in real time, so that the opening degree of the flow control device is adjusted at any time, the flow of the cooling liquid flowing through the first main path is controlled, namely the proportion of the cooling liquid subjected to deionization treatment is controlled, then the conductivity of the cooling liquid of the whole system is adjusted, and the safety of a reactionin the fuel cell stack is guaranteed.

Description

technical field [0001] The invention relates to the technical field of new energy batteries, in particular to a fuel cell thermal management system and method. Background technique [0002] Fuel cells have the advantages of no pollution, high power density, and good cold start performance. They are regarded as an important alternative to traditional power for commercial vehicles, and are also regarded as the key direction of technological transformation by the traditional internal combustion engine industry. [0003] During the cold start process of the fuel cell, the thermal management system is required to heat the electric stack in it to ensure the normal operation of the electric stack. Coolant is the main working medium of the thermal management system, and the coolant flows through the stack to conduct heat energy. Since the electric stack of the fuel cell is always performing electrochemical reactions, it is necessary for the cooling liquid to have extremely low elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04537H01M8/04746H01M8/04858H01M8/04992
CPCH01M8/04641H01M8/04753H01M8/04992H01M8/04951Y02E60/50
Inventor 韩俊楠刘江唯刘爽柳国立张正兴张克金李洋王峰马文举陈瑞平
Owner FAW JIEFANG AUTOMOTIVE CO
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