What is the principle of a rotary connector? What is a rotary connector?

Rotary connectors are a common type of electrical connector, the principle of which is to connect and disconnect the circuit by rotating the axis of the connector. It usually consists of two parts, one is a connector fixed to the device and the other is a connector fixed to the cable or wire. The use of a rotary connector prevents tangling and twisting of cables or wires, and also allows easy removal and replacement of the connector.
The construction of a rotary connector usually consists of two parts: internal and external. The internal part consists of a rotating shaft and multiple metal contacts that are mounted in the center of the connector. The external part consists of a fixed ring structure and a plurality of metal contacts, which are mounted at the periphery of the connector. The internal and external parts are connected to each other by springs or metal inserts, thus forming a circuit connection.
The principle of the rotary connector is to rotate the internal part to make contact with the external part, thus completing the circuit connection. When the internal part is rotated, the metal contacts make contact with the corresponding contacts on the external part, thus forming a circuit path. Conversely, when the internal part is rotated to a position where it does not make contact, the circuit is broken. Rotary connectors are connected in a similar manner to rotary switches, but rotary connectors can support higher currents and higher capacities.
Rotary connectors are typically highly reliable and repeatable, have relatively stable resistance and capacitance parameters, and can withstand certain mechanical and environmental stresses. The advantages of rotary connectors also include their compact structure, ease of use, simple installation, repeatable disassembly, and scalability, making them widely used in industrial automation, power electronics, communications, and other fields.
The types of rotary connectors include multi-wire rotary connectors, coaxial rotary connectors, adapter plate rotary connectors and so on. Different kinds of rotary connectors have different application scenarios and advantages. For example, multi-wire rotary connectors can connect multiple circuits, coaxial rotary connectors can be used for signal transmission and antenna connection, and adapter plate rotary connectors can be used to connect different sizes and types of cables.
Rotary connectors are a kind of electrical connectors based on the principle of rotation, whose advantages include high reliability, good repeatability, ease of use, simple installation, repeatable disassembly, and scalability, etc. They are widely used in industrial automation, power electronics, communications and other fields.

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