Low-pressure hydrogen supply module of hydrogen filling system and low-pressure hydrogen supply module main body

Abstract

The invention relates to a low-pressure hydrogen supply module of a hydrogen filling system and a low-pressure hydrogen supply module main body in the field of duel cell vehicles. The low-pressure hydrogen supply module of the hydrogen filling system comprises at least one of a low-pressure meter, a low-pressure pressure sensor, a safety valve and a low-pressure emptying valve, and further comprises a low-pressure hydrogen supply module main body. The low-pressure hydrogen supply module main body is provided with a low-pressure hydrogen supply inlet, a low-pressure hydrogen supply outlet and at least one element installation port, wherein at least one of the low-pressure meter, the low-pressure pressure sensor, the safety valve and the low-pressure emptying valve is installed on the corresponding element installation port. The filling module main body is further internally provided with a communicating channel used for enabling the low-pressure hydrogen supply inlet, the low-pressure hydrogen outlet and the element installation port to be correspondingly communicated. The scheme of the invention can reduce the number of system components, reduce the connecting points and solve theproblems of excessive potential leakage points, high assembly process and maintenance difficulty and low integration in the existing system.

Description

technical field [0001] The invention relates to a low-pressure hydrogen supply module and a main body of the low-pressure hydrogen supply module of a hydrogen filling system in the field of fuel cell vehicles. Background technique [0002] Fuel cell vehicles mainly use hydrogen as an energy source, and their emissions are only water, with zero pollution to the environment. They are new energy vehicles in the ultimate sense. As environmentally friendly vehicles, they are an important direction of automobile development. developed rapidly within. The on-board hydrogen system of a fuel cell vehicle belongs to the fuel storage and supply system of a fuel cell vehicle, and its safety and reliability have an important impact on the performance and stability of the fuel cell and the vehicle. The existing fuel cell passenger car or bus on-board hydrogen system is mainly divided into three parts: hydrogen filling, storage and supply; the filling part includes hydrogen filling head 1...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-pressure hydrogen supply module of the hydrogen filling system to solve the problems of poor reliability and easy hydrogen leakage in the existing hydrogen filling system; the purpose of the present invention is also to provide a Use the low pressure hydrogen supply module main body used on this low pressure hydrogen supply module

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