Fuel cell air compressor

Abstract

The invention discloses a fuel cell air compressor. The fuel cell air compressor comprises a machine shell, a movable blade shaft, stator coils, rotors and static blades; an air inlet is formed in oneend of the machine shell, an air outlet is formed in the opposite other end of the machine shell, N air compressing cavities are formed in the machine shell, and each air compressing cavity is adjacently arranged on a same straight line; the movable blade shaft penetrates through each air compressing cavity, N groups of movable blade are arranged on the outer wall of the movable blade shaft, andeach group of movable blade is correspondingly arranged in one air compressing cavity; N groups of stator coil are arranged, and each group of stator coil is correspondingly arranged on the inner wallof one air compressing cavity; N groups of the rotor are arranged, each group of rotor is correspondingly arranged in one air compressing cavity, the rotors are arranged between the movable blades and the stator coils, and the rotors are fixedly connected with the movable blades; and N-1 groups of static blade are arranged, one group of static blade is arranged between every two adjacent air compressing cavities, and the adjacent air compressing cavities are communicated through static blades. According to the fuel cell air compressor, the occupied space is small, continuous compression of air is realized, and the problem that the compression efficiency of an existing small-sized air compressor is low is solved.

Description

technical field [0001] The invention relates to a technical solution in the field of fuel cells, in particular to a fuel cell compressor. Background technique [0002] The fuel cell air compressor must not only meet a certain compression ratio, but also provide a large flow of air to power the stack reaction. The stack air must be excessive, otherwise it will affect the efficiency of the fuel cell reaction. Since the fuel cell air compressor needs to be installed in the vehicle The space is limited, so the air compressor needs to have a smaller volume. [0003] Although the current air compressor system uses a centrifugal air compressor, the compression ratio can meet the requirements (a single stage can reach 4.5), but the flow rate is difficult to meet. At the same time, the separation of the air compressor motor and the pump head causes the entire air compressor system Huge, it is also unfavorable to lightweight, and secondly, the efficiency is low. Contents of the inv...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a fuel cell compressor to solve the problem of low efficiency of existing small compressors

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