Variable pitch slip ring brush with an elastic conductive device

Abstract

The invention discloses a variable pitch slip ring brush with an elastic conductive device and the technical scheme points include a connection terminal, a circuit board, a contact shell piece and an electric brush. The connection terminal is arranged on one side of the circuit board. Between the circuit board and the connection terminal is provided with an inserted copper conductor, which is provided with square holes on both sides. The elastic buckle of the contact spring plate is arranged on the square holes of the circuit board. The electric brush is a dovetail brush. One side of the contact spring plate is provided with an elastic buckle, the other side is connected with a reinforced rib and the dovetail groove brush. The contact spring plate is provided with an install dovetail groove matched with the dovetail groove brush. The dovetail groove brush is fixedly connected in the install dovetail groove. The Variable pitch slip ring brush with an elastic conductive device has the advantages that the elastic conductive device resolves the problems of light pressure, skipping and wearing off easily, damaging ring and short life caused by using wire structure electric brush. The Variable pitch slip ring brush with an elastic conductive device reduces maintenance frequency, achieves self-lubricating and self-maintaining, improves the stability of the transmitted signal and reduces the maintenance cost.

Description

technical field [0001] The present invention relates to a variable pitch slip ring brush, more specifically, it relates to a pitch variable slip ring brush with an elastic conductive device. Background technique [0002] The main function of the pitch slip ring of the wind turbine is to be responsible for the conductive transmission of the pitch motor power channel in the rotating hub of the wind turbine and the transmission of control signals and communication signals of other electrical devices. The hub rotates with the blades and other factors cause vibration. Relatively large, so that the vibration resistance requirements for electrical conduction and signal transmission are higher. If power failure or serious data packet loss occurs during signal transmission, the entire unit will eventually be shut down. Therefore, the requirements for signal transmission quality of the pitch slip ring are relatively high. By studying the rotating contact conductive contact structure,...

AI Technical Summary

Problems solved by technology

The metal wire structure contacts have dirt attached to the surface during operation, resulting in poor contact, difficult cleaning and maintenance, time-consuming and laborious

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