Stator potting type hydrogen circulating pump and manufacturing method thereof

Abstract

The invention discloses a stator potting type hydrogen circulating pump and a manufacturing method thereof. The stator potting type hydrogen circulating pump comprises a motor part, wherein the motor part comprises a shell, a partition plate is arranged in the shell, the shell is divided into a motor cavity and a controller cavity by the partition plate, and the outer side of a stator and the outer side of a temperature sensor are coated with potting glue; a controller part, wherein the controller part comprises a circuit board mounted in a controller cavity, an end cover is mounted on the side, away from the partition plate, of the controller cavity, a communicating hole is formed in the partition plate, a threading base is mounted in the communicating hole, and a three-phase line of the stator penetrates through the threading base to be connected with the circuit board; and a pressurizer part, wherein the pressurizer part comprises an impeller mounted on an output shaft of the rotor on the outer side of a second bearing seat, and a flow channel cover plate is mounted on the outer side of the impeller. It is convenient and fast to wire, and the assembling efficiency is improved; the sealing performance is better, hydrogen leakage points are reduced, the problem of hydrogen leakage is basically and thoroughly solved, the overall size is reduced, the space is saved, and the overall structure is more compact.

Description

Technical field: [0001] The invention relates to a stator potting type hydrogen circulation pump and a manufacturing method thereof. Background technique: [0002] Fuel cells generate electrical energy through the electrochemical reaction between combustible substances (hydrogen) and oxygen in the air. After the fuel cell reacts, the exhaust gas contains a large amount of hydrogen. If these hydrogen are directly discharged into the atmosphere, on the one hand It is a waste of energy. On the other hand, it causes pollution to the environment. Third, hydrogen is flammable and explosive, which will cause danger. Therefore, it is necessary to recycle the hydrogen. [0003] At present, the hydrogen-containing mixed gas is generally circulated back to the fuel cell through the hydrogen circulation pump for recycling. However, during the working process of the hydrogen circulation pump, part of the hydrogen-containing mixed gas will leak from the booster chamber into the motor cham...

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Problems solved by technology

[0005] In order to make up for the deficiencies in the prior art, the present invention provides a stator potting type hydrogen circulation pump and its manufacturing method, which solves the problem of potential safety hazards caused by leakage of hydrogen at the junction box on the motor casing in the past, and solves the problem of the previous control Separate setting of the motor, additional space occupation, resulting in the problem that the overall structure of the motor is not compact enough, which solves the problem of troublesome wiring of the junction box and reduced efficiency in the past

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