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Fuel cell thermal management system

A thermal management system and fuel cell technology, applied in the direction of fuel cell heat exchange, fuel cells, fuel cell additives, etc., can solve problems such as the increase in conductivity of coolant, and achieve simplification, cost reduction, and efficient integrated layout Effect

Inactive Publication Date: 2021-01-29
江苏清能动力科技有限公司 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, in the existing fuel cell thermal management system, materials of many functional components such as radiators, intercoolers, PTC (Positive Temperature Coefficient, positive temperature coefficient) heaters, etc. will precipitate ions, resulting in a decrease in the conductivity of the coolant. raised

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  • Fuel cell thermal management system

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Embodiment Construction

[0048] The inventors of the present application found through research that in the existing technology, the deionization device, the conductivity tester and the expansion kettle are placed separately in the water cycle of the thermal management system and connected by silicone tubes, which leads to a large volume of the fuel cell system. Its application scenarios are limited. Further, since each part needs a set of fixed structure and connecting silicone tubes, the production cost is increased. At the same time, the increase of fixing and connecting structures will not only reduce the reliability of the whole system, but also make the production and maintenance more difficult. The increase in assembly processes increases the difficulty of process quality control.

[0049] For example, if you want to repair and replace a certain part in the fuel cell system, you need to drain the coolant of the entire system, which will increase the maintenance time. At the same time, because t...

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Abstract

The invention discloses a fuel cell thermal management system, which comprises an expansion kettle, a conductivity tester and a deionization device, and is characterized in that the expansion kettle comprises a first space, a second space, a conductivity tester insertion port and a deionization device maintenance cover; the detection end of the conductivity tester is located in the first space andused for conducting conductivity detection on cooling liquid in the expansion kettle cavity; the deionization device is positioned in the second space and is used for reducing the conductivity of thecooling liquid passing through the deionization device; and the deionization device maintenance cover is located at one end of the deionization device and used for directly replacing the deionizationdevice. The conductivity of the cooling liquid of the thermal management system can be more effectively detected and controlled in real time, safe and continuous work of the fuel cell is ensured, thesize of the fuel cell system can be reduced, the integration is improved, and the application scene of the fuel cell system is expanded.

Description

technical field [0001] The invention relates to the technical field of fuel vehicles, in particular to the technical field of fuel cells. Background technique [0002] The fuel cell of a fuel cell vehicle consumes air and hydrogen to output high-voltage electricity and generate water at the same time. [0003] Due to the special working mode of water and electricity mixing, the fuel cell has high requirements on the conductivity of the coolant of the fuel cell system. Generally, the conductivity is required to be lower than a certain threshold. However, in the existing fuel cell thermal management system, materials of many functional components such as radiators, intercoolers, PTC (Positive Temperature Coefficient, positive temperature coefficient) heaters, etc. will precipitate ions, resulting in a decrease in the conductivity of the coolant. raised. [0004] Therefore, how to effectively monitor and control the conductivity of the coolant in the thermal management system...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04007H01M8/04029H01M8/04044H01M8/04537
CPCH01M8/04007H01M8/04029H01M8/04044H01M8/04656Y02E60/50
Inventor 敬威刘海斌
Owner 江苏清能动力科技有限公司
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