Title:
HIGH-SPEED AIR SUSPENSION COMPRESSOR FOR FUEL CELL HAVING CLOSED STATOR, AND FUEL CELL SYSTEM AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/082464
Kind Code:
A1
Abstract:
A high-speed air suspension compressor for a fuel cell having a closed stator, and a fuel cell system and a vehicle. An electric motor stator (5) is a closed stator, and resin or metal caps are used on two sides thereof to close an end coil; a cooling sleeve (19) is in interference fit between an outer wall of the electric motor stator (5) and an inner wall of an electric motor housing (4), and a cooling channel (19-1) is in communication with a cooling-liquid inlet (18) and a cooling-liquid outlet (20); a thrust disc (13) is arranged in the middle of an air suspension thrust bearing assembly and is fixed to an electric motor rotor (6) on a rear side of an impeller (10), and a steam sealing body (15) is arranged on an outer edge of a back plate of the impeller (10); and a cooling fan (23) is fixed at a rear end of the electric motor rotor (6), the electric motor rotor (6) drives the cooling fan (23) to feed air into an inner cavity of the electric motor stator (5), and the air is discharged through an air outlet (7). Cooling liquid flows through the cooling channel (19-1) to take away heat of the electric motor stator (5), and the electric motor rotor (6) is cooled by means of air flowing through a gap between the electric motor stator (5) and the electric motor rotor (6), such that the normal operation of an electric motor under extreme conditions is ensured by means of the cooperation of the two cooling means.
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Inventors:
LI ZHIYUAN (CN)
ZHAO ZHEN (CN)
ZHAO ZHEN (CN)
Application Number:
PCT/CN2022/071523
Publication Date:
May 19, 2023
Filing Date:
January 12, 2022
Export Citation:
Assignee:
HAINAN JIRUI HAOHAN POWER SYSTEM TECH CO LTD (CN)
International Classes:
F04D17/10; F04D29/056; F04D29/30; F04D29/42; F04D29/44; F04D29/58; H02K5/16; H02K9/19
Foreign References:
| CN112814935A | 2021-05-18 | |||
| CN109245431A | 2019-01-18 | |||
| CN212337669U | 2021-01-12 | |||
| CN212672115U | 2021-03-09 | |||
| CN112761972A | 2021-05-07 | |||
| CN203962054U | 2014-11-26 |
Attorney, Agent or Firm:
HARBIN WEICHEN PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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