Title:
FREQUENCY CONVERTER COOLING SYSTEM, APPARATUS IN WHICH FREQUENCY CONVERTER IS APPLIED, AND COOLING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/109296
Kind Code:
A1
Abstract:
Disclosed are a variable-frequency transmission cooling system, an apparatus in which a frequency converter is applied, and a cooling control method. The system comprises: a frequency converter cooling flow path, which comprises a first liquid-taking flow path, a first heat exchange assembly (4) and a first liquid-returning flow path, and performs heat exchange with a frequency converter assembly by means of the first heat exchange assembly (4); a first control device (21), which is arranged on the first liquid-taking flow path and/or the first liquid-returning flow path; a second control device (12), which is arranged on the first liquid-returning flow path; and a controller assembly, which is electrically connected to the frequency converter assembly, the first control device and the second control device, is used for ensuring that a frequency converter works at an adaptive temperature, and moreover, can further effectively adjust a front-back pressure difference of the frequency converter and solve problems such as condensation and overtemperature under extreme working conditions.
Inventors:
HE YAPING (CN)
DENG MING (CN)
HU JIAXI (CN)
LUO HE (CN)
GAO LUSHAN (CN)
AO EN (CN)
MA MING (CN)
LI JIA (CN)
HUANG YIZHI (CN)
WEN LIANG (CN)
HAN ZHICHENG (CN)
GUO SHIHUI (CN)
YANG ZHUO (CN)
LIU YUXIN (CN)
LI YU (CN)
YANG XING (CN)
MENG WENHUI (CN)
HUANG QIZHAO (CN)
QIN CANHUA (CN)
ZHANG ZHE (CN)
DENG MING (CN)
HU JIAXI (CN)
LUO HE (CN)
GAO LUSHAN (CN)
AO EN (CN)
MA MING (CN)
LI JIA (CN)
HUANG YIZHI (CN)
WEN LIANG (CN)
HAN ZHICHENG (CN)
GUO SHIHUI (CN)
YANG ZHUO (CN)
LIU YUXIN (CN)
LI YU (CN)
YANG XING (CN)
MENG WENHUI (CN)
HUANG QIZHAO (CN)
QIN CANHUA (CN)
ZHANG ZHE (CN)
Application Number:
PCT/CN2019/129319
Publication Date:
June 10, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
ZHUZHOU CRRC TIMES ELECTRIC CO LTD (CN)
International Classes:
F25B1/00; H05K7/20
Foreign References:
| CN108775721A | 2018-11-09 | |||
| CN204718171U | 2015-10-21 | |||
| CN103307715A | 2013-09-18 | |||
| CN206609116U | 2017-11-03 | |||
| CN104640421A | 2015-05-20 | |||
| JP2005168134A | 2005-06-23 | |||
| CN201911235537A | 2019-12-05 |
Attorney, Agent or Firm:
YUHONG INTELLECTUAL PROPERTY LAW FIRM (CN)
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