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

A rotary connector is a common type of electrical connector that works by rotating the connector's axis to connect and disconnect circuits. 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 rotary connectors avoids tangling and twisting of cables or wires and also allows for easy removal and replacement of connectors. The structure 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 includes a fixed ring structure and a plurality of metal contacts which are mounted at the peripheral position of the connector. The internal and external parts are connected to each other by means of 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 similarly to rotary switches, but rotary connectors can support higher currents and greater capacity. Rotary connectors are typically highly reliable and repeatable, with relatively stable resistance and capacitance parameters, and are able to withstand certain mechanical and environmental stresses. The advantages of rotary connectors also include their compact structure, ease of use, simple installation, repeatable disassembly, and high scalability, making them widely used in industrial automation, power electronics, communications, and other fields. Types of rotary connectors include multi-wire rotary connectors, coaxial rotary connectors, adapter plate rotary connectors and so on. Different types 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 connector is a kind of electrical connector based on the principle of rotation, and its advantages include high reliability, good repeatability, easy to use, easy to install, repeatable disassembly, and expandability, etc. It is widely used in the fields of industrial automation, power electronics, and communication.

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