VARIABLE PITCH CONDUCTIVE SLIP RING FOR WIND POWER

WIPO Patent Application WO/2022/165866

A1

Disclosed in the present utility model is a variable pitch conductive slip ring with a new-type structure. The variable pitch conductive slip ring comprises a stator part and a rotor part. The variable pitch conductive slip ring is characterized in that a front end of a stator housing is connected to a rotor housing by means of a bearing, the stator housing is fixedly connected to an end of a slip ring conductive shaft by means of the bearing, one end of the slip ring conductive shaft is fixedly connected to the rotor housing, and the other end of the slip ring conductive shaft is not in connection with the tail end of the stator housing. Features of the variable pitch conductive slip ring in the present utility model are that interconnection relationships between the stator housing, the rotor housing and the conductive shaft are realized by using only one bearing, and compared with conventional structures of variable pitch conductive slip rings, the number of bearings used is reduced and machining difficulty of the stator housing is reduced, such that the cost is saved on; and since only one end of the slip ring conductive shaft is connected to the stator housing, the slip ring conductive shaft can be conveniently mounted or dismounted without needing to remove the rotor housing and remove the bearing by means of which a rotor and a stator are connected to each other.

GAO DESHAN (CN)
ZHANG GUANGLU (CN)
SUN TAO (CN)
WANG FENGCHENG (CN)

PCT/CN2021/077218

August 11, 2022

February 22, 2021

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HUAYAN WIND POWER EQUIPMENT MFG DALIAN CO LTD (CN)

H01R39/08

CN209250435U	2019-08-13
US5934911A	1999-08-10
CN209233126U	2019-08-09
CN203932621U	2014-11-05
CN208111882U	2018-11-16
CN204497532U	2015-07-22

BEIJING ZHI CHENG HAN FANG IP AGENCY CO., LTD. (CN)

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