Title:
WIND TURBINE CLOSED COOLING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/042848
Kind Code:
A1
Abstract:
The present invention belongs to the field of wind turbines, and relates to a wind turbine closed cooling structure, comprising in sequence, from left to right, an inlet air collection channel, a machine base, an outlet air collection channel and a fan; the inlet air collection channel is positioned on a transmission direction, and the inlet air collection channel is connected to the machine base; the outlet air collection channel is positioned on a non-transmission direction, and the outlet air collection channel is connected to the machine base; an inlet air channel is disposed between the inlet air collection channel and the outlet air collection channel, one end of the inlet air channel being in communication with the inlet air collection channel, and another end of the inlet air channel being in communication with the fan; the present structure is characterized by a low-air resistance structure of a rotor part, and air inlet and outlet openings being as uniformly arranged as possible; the present air passage structure can prevent oil vapor in a nacelle from entering a motor; the low-air resistance rotor structure can effectively cool a bearing, and can also lower the power for a forced cooling drive motor and increase the cooling capacity of a cooler; the uniform air inlet and outlet structures can ensure a more uniform temperature for the motor, lowering winding heating and increasing motor power.
Inventors:
ZHANG JINJUN (CN)
YU WENBIN (CN)
WANG WENQING (CN)
YOU BAIPENG (CN)
CI YUANPING (CN)
YU WENBIN (CN)
WANG WENQING (CN)
YOU BAIPENG (CN)
CI YUANPING (CN)
Application Number:
PCT/CN2020/099367
Publication Date:
March 11, 2021
Filing Date:
June 30, 2020
Export Citation:
Assignee:
CRRC XIAN YONGE JIELI WIND ENERGY CO LTD (CN)
International Classes:
H02K9/04; H02K5/00; H02K5/20
Foreign References:
| CN110729852A | 2020-01-24 | |||
| CN104912740A | 2015-09-16 | |||
| CN104912740A | 2015-09-16 | |||
| CN202616932U | 2012-12-19 | |||
| CN102281742A | 2011-12-14 | |||
| CN204886564U | 2015-12-16 | |||
| CN202103535U | 2012-01-04 | |||
| JP2014033584A | 2014-02-20 |
Attorney, Agent or Firm:
XI'AN NEW POWER INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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