Power adapter

Abstract

The invention relates to the technical field of electric power transmission, in particular to a power adapter, comprising a roller for storing cables. A first wire storage tray is fixed arranged on the rotary shaft of the roller; a bushing matching with the gap of the rotary shaft is arranged at one side of the first wire storage tray close to the roller; ratchet wheels are respectively fixed at two ends of the bushing; a second wire storage tray is arranged between the ratchet wheel and the roller; the second wire storage tray is matched with the gap of the rotary shaft and fixed on a support frame; pawls are arranged on the first wire storage tray and the second wire storage tray; a guide wheel bracket is arranged on the bushing; a guide wheel capable of rotating around the axis is arranged at the upper part of the guide wheel bracket; and the axis of the guide wheel is perpendicular to the rotary shaft. A friction plate is arranged between the guide wheel bracket and the bushing. A balance weight is arranged on the guide wheel bracket at the other side of the rotary shaft. According to the power adapter, the electrical switchover with a bigger rotating angle between a rotational cable and a fixed cable can be realized, is in a non-contact mode and can be used for continuous switch-on.

Description

technical field [0001] The invention relates to the technical field of electric power transmission, in particular to an electric adapter. Background technique [0002] The simplest electrical adapters are terminal blocks and plug sockets, but these simple electrical adapters are only suitable for electrical connections between fixed electrical components. For the transfer between two parts with relative movement, it is by no means complete by electrical adapters such as terminal blocks and plug sockets. So the more complicated and well-known adapters composed of screw adapters, slip rings and contacts have appeared one after another. This type of adapter can realize the electrical connection between two relatively moving parts, so it is widely used. However, these electrical adapters have also exposed some of their own weaknesses in the use of some occasions, for example: the screw adapter is only suitable for occasions where the relative angle between the rotating part an...

AI Technical Summary

Problems solved by technology

However, these electrical adapters have also exposed some of their own weaknesses in the use of some occasions, for example: the screw adapter is only suitable for occasions where the relative angle between the rotating part and the fixed part is less than 360o degrees; The adapter composed of points, due to the existence of contact resistance and easy to cause friction ignition, is often not suitable for the transmission of weak electrical signals and is not allowed to be used in occasions where electrical noise occurs due to ignition, and it is not suitable for marine environmental conditions.

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