Combined brush assembly for wind power sliding ring

Abstract

A combined brush assembly for a wind power sliding ring relates to the technical field of a power transmission device for wind power generation. The combined brush assembly comprises brushes, a printed circuit board, winding terminals, a support plate and side press plates, wherein the support plate is of a horizontally-placed rectangular structure, a groove is formed in a middle part of a lower surface of the support plate along a direction of a long edge, the printed circuit board is of a horizontally-placed rectangular structure and is fixedly arranged on an upper surface of the support plate, the n brushes are stacked and fixedly arranged at two sides of the printed circuit board along the direction of the long edge at equal distance, the m wiring terminals are uniformly arranged at a middle line of an upper surface of the printed circuit board along the direction of the long edge, the side press plates are symmetrically arranged at two sides of the long edge of the support plate, n is a positive integer, and m is a positive integer. The invention proposes the combined brush assembly for the wind power sliding ring, the fabrication process of brush assembly for the wind power sliding ring is simplified, the usage amount of a gold-based brush wire is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of a power transmission device for wind power generation, in particular to a combined brush assembly for a wind power slip ring. Background technique [0002] At present, the continuous development of green energy technology, especially the sustainable development and utilization of wind energy, is favored by many countries around the world. Its wind power generation technology has been strongly supported by relevant policies, and wind turbine manufacturers have also ushered in a wave of rapid development. As a key power transmission device in the wind turbine pitch mechanism system, the wind power slip ring is responsible for the transmission of the power supply and control signals of the entire pitch mechanism, which puts forward very high requirements for its performance and reliability. [0003] Wind power slip ring is a special type of conductive slip ring used in the field of wind power. It is a precis...

AI Technical Summary

Problems solved by technology

[0004] At present, the mainstream wind power slip ring brush components in the world all adopt gold-based alloy monofilament brush structure. The main components of the material are gold and other precious metal elements. The electrical contact performance and wear resistance are very good. After decades However, the excellent elastic properties of gold-based alloy monofilaments make it difficult to manufacture brush assemblies. With the upgrading of wind turbines, the requirements for wind power slip ring transmission power supply are gradually increasing, and the number of brushes The rapid increase, the use of more and more gold-based alloy monofilament brushes, resulting in high costs, but also caused a huge consumption of gold, silver and other precious metals, high manufacturing costs

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