Title:
BLOWER OF MAGNETIC LEVITATION CENTRIFUGE
Document Type and Number:
WIPO Patent Application WO/2023/015737
Kind Code:
A1
Abstract:
The present invention relates to the field of blowers, and in particular relates to a blower of a magnetic levitation centrifuge. The blower comprises a casing, a diffuser, a rear end cover, a motor shaft and a magnetic bearing apparatus; the diffuser and the rear end cover are fixed on front and rear end surfaces of the casing respectively, and the casing is fixedly provided with a stator seat, a front protective bearing seat, a rear protective bearing seat, a front radial bearing seat, a rear radial bearing seat and an axial bearing seat; the motor shaft is fixedly provided with a blower impeller, and a sealing apparatus is provided between the back of the blower impeller and the end surface of the diffuser; there is a first channel between the front protective bearing seat and the diffuser, and the front radial bearing seat is provided with a second channel and a third channel that communicates with the outside; and one end of the first channel communicates with the back of the blower impeller and the tail end of the sealing apparatus, and the other end of the first channel, the second channel and the third channel communicate in sequence to form a heat dissipation channel. The blower is provided with a heat dissipation channel at the back of a blower impeller to discharge hot air to the outside of the blower, thereby reducing the temperature of a protective bearing and preventing same from being damaged.
Inventors:
YUAN JUN (CN)
ZHONG RENZHI (CN)
XU GONGYI (CN)
XIANG DONGXIN (CN)
ZHONG RENZHI (CN)
XU GONGYI (CN)
XIANG DONGXIN (CN)
Application Number:
PCT/CN2021/127217
Publication Date:
February 16, 2023
Filing Date:
October 29, 2021
Export Citation:
Assignee:
XINLEI COMPRESSOR CO LTD (CN)
International Classes:
F04D25/08; F04D25/06; F04D29/058; F04D29/58
Foreign References:
| CN215805305U | 2022-02-11 | |||
| CN203717391U | 2014-07-16 | |||
| CN107956749A | 2018-04-24 | |||
| CN110571971A | 2019-12-13 | |||
| CN211116711U | 2020-07-28 | |||
| US20180320696A1 | 2018-11-08 | |||
| KR101973672B1 | 2019-04-29 |
Attorney, Agent or Firm:
HANGZHOU HENGYI PATENT AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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