| CPC H01R 39/08 (2013.01) [F03D 7/0204 (2013.01); F03D 80/00 (2016.05); H01R 39/18 (2013.01); F05D 2260/20 (2013.01)] | 20 Claims |
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20. A wind turbine, comprising:
a yaw system comprising:
a slip ring device arranged on a yaw platform in a middle of an installation position of a tower and a nacelle, and comprising:
a rotating part;
a fixed part; and
a heat dissipation device arranged on the fixing part,
wherein the rotating part is configured to rotate relative to the fixed part, a conductive ring is arranged on the rotating part, a brush is arranged on the fixed part, and one or more inclined slots are provided on at least one of the conductive ring or the brush,
wherein the one or more inclined slots comprise a first inclined slot provided on the brush and indented into the brush and a second inclined slot provided on the conductive ring and indented into the conductive ring,
wherein the first inclined slot on the brush is inclined at a first inclined angle relative to a circumferential extending direction of the conductive ring and the brush, the second inclined slot on the conductive ring is inclined at a second inclined angle relative to the circumferential extending direction of the conductive ring and the brush, and each of the first and second inclined angles is greater than a repose angle of a material of the brush and a repose angle of a material of the conductive ring, and
wherein when the conductive ring and the brush are in contact with each other, the one or more inclined slots are configured to discharge wear debris generated as the conductive ring and the brush are in contact; and
a control unit arranged on the fixed part of the slip ring device and used for controlling activation and deactivation of the heat dissipation device based on a temperature signal measured by a temperature sensor; and
a generator coupled to the yaw system.
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