Rotary conducting mechanism and rotary electrical coupler with same

Abstract

The invention relates to the field of electrical couplers, particularly to a rotary conducting mechanism and a rotary electrical coupler with the same. The rotary conducting mechanism comprises brush contacts and electric slip rings. Each brush contact comprises a conductive ring. A contact spring is adhered to at least one side of each conductive ring and comprises a main ring. Elastic contact pins which are in cantilever shapes and arranged on the insides of the main rings comprise fixed ends and contact ends. The contact ends compress the corresponding end faces of the electric slip rings. The threadlike brush contacts of the prior art are eliminated, thus required transmission power of the contact springs is met by adjusting thickness, diameter and the like of the contact springs. With changes of the contact structure, the elastic contact pins can be matched with the electric slip rings with larger sizes, in this way, at the premise that the axial dimension of the rotary electrical coupler is maintained, the transmission power of the rotary electrical coupler is improved.

Description

Technical field [0001] The present invention relates to the field of electrical connectors, in particular to a rotary conductive mechanism and a rotary electrical connector using the mechanism. Background technique [0002] The brush contact and the electric slip ring are the two core components of the rotating electrical connector. The brush contact is often fixed on the housing of the rotating electrical connector, while the electric slip ring is fixed on a rotating shaft. Above, when the rotating shaft rotates around the axis, the brush contacts cooperate with the electric slip ring to realize the uninterrupted transmission of electric signals. Most of the current brush contacts are wire-shaped, which are eight-shaped and clamped on the corresponding electric slip ring. They mainly include composite brush block type, precious metal monofilament type and fiber brush type. For example, the application number is 201010227485 The Chinese patents of 2010202597743, 201020597669, 20...

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Problems solved by technology

[0003] The above-mentioned brush contacts and electric slip rings have been widely used in rotary electrical connectors, but when the electric slip ring is used to transmit high power (current greater than 200A), due to the single brush contact of the above structure The power of components and electric slip rings is limited, so it is necessary to use multiple parallel connections to transmit power together. However, due to the influence of machining, assembly and other factors, the actual power of each transmission line is not the same. In this case, when When the design power redundancy of brush contacts and electric slip rings is small, individual paths may burn out due to the difference in actual transmission power, resulting in failure of the entire electrical connector; when the power design redundancy is large , it is necessary to increase the axial dimension of the electrical connector accordingly. In this way, a lot of material will be wasted, and the cost of the product will also increase accordingly.

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