Back to results
US 12,431,680 B2Granted
Slip ring apparatus, yaw system, and wind turbine generator set
AssigneeBeijing Goldwind Science & Creation Windpower Equipment Co., Ltd.
InventorsXianfu Cen, Weifeng Gu, Jiankun Chu
Life of this patent
Estimating the term…
Abstract
A slip ring apparatus, a yaw system, and a wind turbine generator set are provided. The slip ring apparatus includes a rotating part and a fixed part, the rotating part can rotate relative to the fixed part, a conductive ring is provided on the rotating part, an electric brush is provided on the fixed part, and a chute is formed in at least one of the conductive ring and the electric brush, so that when the conductive ring and the electric brush are in contact, the chute can discharge abrasive dust generated when the conductive ring and the brush are in contact, thereby suppressing the increase of fretting contact resistance between the conductive ring and the electric brush.
Claims20
A slip ring device, comprising:
- a rotating part;
- and
- a fixed 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.
4 more elements
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.
8 more elements
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.
11 more elements
Dependencies are inferred from the claim text.