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1. (WO2018196003) MOTOR VENTILATION STRUCTURE AND MOTOR

Pub. No.:    WO/2018/196003    International Application No.:    PCT/CN2017/082616
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: H02K 9/08
F24F 11/00
H02K 5/20
F04D 25/08
F04D 29/30
Applicants: SIEMENS AKTIENGESELLSCHAFT
JIANG, Zhiwei
Inventors: JIANG, Zhiwei
Title: MOTOR VENTILATION STRUCTURE AND MOTOR
Abstract:
The motor ventilation structure (20) is disposed inside a housing (31) of the motor (30), and the motor (30) is provided with a drive end (301) and a non-drive end (302) opposite to the drive end. The motor ventilation structure (20) includes: a first air baffle (21), located on the drive end (301), where the first air baffle (21) is spaced from a side wall of the housing of the motor (30), so as to form an accommodation space (210) with the housing (31); a ventilation pipe (22), fixed on the first air baffle (21), where the ventilation pipe (22) extends from the non-drive end (302) of the motor (30) to the drive end (301) of the motor (30) and is in communication with the accommodation space (210); and a double-suction fan (23), fixedly sleeved on a rotation shaft (32) of the motor (30) and disposed on one side, close to the non-drive end (302), of the first air baffle (21), where the double-suction fan (23) is configured to extract air from the non-drive end (302) to the drive end (301), and extract air in the accommodation space (210) and air for axial-radial cooling out of the housing (31) of the motor (30). The motor ventilation structure (20) and the motor (30) may ensure that a bearing of the drive end of the motor (30) has an appropriate temperature, and may achieve relatively high heat dissipation efficiency.