Title:
MOTOR SEALING STRUCTURE AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2019/095981
Kind Code:
A1
Abstract:
Provided are a motor sealing structure and a motor. The motor sealing structure comprises: a rotary shaft (1), a bearing (2), which is sleeved on the rotating shaft (1). A shaft shoulder structure is arranged on an outer peripheral wall of the rotating shaft (1) at a position corresponding to the bearing (2) along an axial direction of the rotating shaft, so as to form a cavity (4) between a portion of the bearing (2) and the shaft shoulder structure. and a fan blade structure (3), which is sleeved at one end of the rotating shaft (1) and extends in the axial direction of the rotating shaft (1) to the position of the bearing (2), and is inserted into the cavity (4). With the present solution, the motor can be cooled and sealed by the blades, so that the blade structure is in contact with an inner ring of the bearing and rotates synchronously with the inner ring of the bearing. There is no need to increase the sealing element, preventing the shaft from directly contacting the sealing element, and with no energy loss. The solution in this invention solves the problem of energy loss of the commonly used sealing method, ensures the performance of the motor, improves the efficiency, and has the advantages of simple structure and convenient assembly, and can be installed according to normal pressing. There is no need of additional parts, which saves costs.
Inventors:
GAO FENG (CN)
LIU JIANNING (CN)
ZHENG YI (CN)
LIU JIANNING (CN)
ZHENG YI (CN)
Application Number:
PCT/CN2018/112309
Publication Date:
May 23, 2019
Filing Date:
October 29, 2018
Export Citation:
Assignee:
GREE GREEN REFRIGERATION TECH CT CO LTD ZHUHAI (CN)
International Classes:
H02K5/16; H02K7/14
Foreign References:
| CN107888010A | 2018-04-06 | |||
| CN207573148U | 2018-07-03 | |||
| CN201975907U | 2011-09-14 | |||
| CN201971522U | 2011-09-14 | |||
| CN203722378U | 2014-07-16 | |||
| CN204357952U | 2015-05-27 | |||
| EP0423616A1 | 1991-04-24 | |||
| CN201711145356A | 2017-11-17 |
Other References:
See also references of EP 3672031A4
Attorney, Agent or Firm:
BEIJING XURUN LAW FIRM (CN)
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