Rolling contact rotary electrical connector

Abstract

The invention discloses a rolling contact rotary electrical connector. The rolling contact rotary electrical connector comprises a shell, a shaft, a shaft sleeve, an end cover, an inner conductive ring, an outer conductive ring, flexible rings, an insulating ring, a bearing and an output lead, wherein the inner conductive ring and the outer conductive ring are connected with leads for the transmission of signals and power; a proper number of flexible rings are arranged between the inner conductive ring and the outer conductive ring according to the need; and the flexible rings keep contact with the working faces of the inner conductive ring and the outer conductive ring by means of elastic deformation. The inner conductive ring is mounted on the shaft, the outer conductive ring is mountedon the shell, and a bearing is mounted between the shaft and the shell to achieve relative rotation and drive the flexible rings to rotate, thus realizing the continuous transmission of signals from the inner conductive ring to the outer conductive ring. By rolling the flexible rings relative to the inner conductive ring and the outer conductive ring, the transmission of signals and power is realized, so that the friction and wear during rotating operation can be reduced greatly, and the service life of the rolling contact rotary electrical connector can reach more than five times of that of the traditional rotary electrical connector at the same rotating speed.

Description

technical field [0001] The invention relates to a rotary electrical connector, in particular to a rolling contact type rotary electrical connector. Background technique [0002] The rotary electrical connector is an electrical connector that can transmit signals and power in a rotating state. It can avoid damage caused by cable twisting during the rotating electrical transmission process. It is widely used in the rotating electrical transmission between the fixed end and the rotating end of the equipment. [0003] The traditional rotary electrical connector is mainly composed of a conductive ring and a brush. The conductive ring and the brush rotate relative to each other. The brush maintains sliding contact with the conductive ring under a certain pressure, thereby realizing the transmission of signals and power. In this design form, due to the sliding friction between the brush and the conductive ring, there is inevitable wear between the brush and the conductive ring duri...

AI Technical Summary

Problems solved by technology

In this design form, due to the sliding friction between the brush and the conductive ring, there is inevitable wear between the brush and the conductive ring during rotation, which greatly affects the service life. Life expectancy will be greatly reduced

At the same time, due to the existence of wear and tear, the stability of power transmission will also decrease after long-term work, and a large amount of wear debris accumulation can easily cause the insulation performance of power transmission to decline, thereby causing short-circuit faults in the power supply

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