Electric generator, fuel cell hydrogen energy recovery system comprising electric generator, and car

Abstract

The invention provides an electric generator. The electric generator comprises a shell and further comprises a pipeline penetrating through the shell. The pipeline is internally provided with an impeller, and a rotating shaft is arranged in the axial direction of the impeller. The rotating shaft penetrates through the pipeline in the axial direction and is rotatably fixed to the inner wall of theshell. Permanent magnetic rotors are fixedly mounted at the positions, symmetrical with respect to the pipeline, on the axle of the rotating shaft. A stator iron core matched with the contour of the shell is attached to the inner wall of the shell. A coil is embedded in the stator iron core in a wound mode. The invention further provides a fuel cell hydrogen energy recovery system comprising the electric generator, and a car. When the electric generator is mounted in a hydrogen pipeline, pressure relief can be conducted on high-pressure hydrogen through rotation of the impeller, so that a pressure-reducing part is omitted; the economic cost and the maintenance cost are saved; and on the other hand, pressure energy of the high-pressure hydrogen can be recycled and converted into electric energy to be utilized, the efficiency of the fuel cell system is improved, and the energy source loss is reduced.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a pneumatic permanent magnet generator, a fuel cell hydrogen energy recovery system including the generator and an automobile. Background technique [0002] With the increasing attention to environmental issues, the country is vigorously developing clean energy, the hydrogen fuel cell industry is developing rapidly, and fuel cell vehicles have gradually entered large-scale demonstration operations. Existing fuel cell vehicles usually use high-pressure carbon fiber hydrogen cylinders as the hydrogen supply system. Before filling the hydrogen, it needs to be pressurized, and a large amount of electric energy will be consumed during the pressurization process. After filling the high-pressure hydrogen, before the hydrogen is used, it needs to go through two stages of decompression to decompress the high-pressure hydrogen to a suitable pressure range before it can enter the stack f...

AI Technical Summary

Problems solved by technology

During the decompression process of ordinary pressure reducing valves, a large amount of pressure contained in high-pressure hydrogen can be released without effective recycling, resulting in energy waste

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