Classification and Functions of Circular Connectors

　　A circular connector is a type of electrical connector known for its compact structure, high protection rating, and excellent corrosion resistance. It is widely used in industrial automation, aerospace, machine vision, and other fields. The classification and functions of circular connectors are as follows:

　　I. Classification by Connection Method

　　Threaded Coupling Connectors: These connectors utilize a threaded mechanism to secure the plug and socket together. They feature a simple structure, reliable connection, and good sealing, making them suitable for harsh environments.

　　Push-Pull Connectors: These connectors are engaged and disconnected by pushing and pulling the plug. They offer quick connection/disconnection and easy operation, ideal for applications requiring frequent mating and unmating.

　　Magnetic Coupling Connectors: These connectors use magnetic force to achieve connection. They allow for automatic alignment and fast, reliable mating, suitable for connections in high-speed moving equipment.

　　II. Classification by Structure

　　Inline Connectors: The plugs and sockets of inline connectors are designed to be inserted directly into holes on a circuit board. Their compact structure makes them suitable for applications with limited space on the PCB.

　　Cable Connectors (Lead Wire Type): These connectors have plugs and sockets equipped with flying leads, used for connecting peripheral devices to a circuit board.

　　Receptacle Connectors (with Junction Box): These connectors feature plugs and sockets integrated with a junction box, allowing for direct cable connection.

　　III. Classification by Protection Rating (IP Code)

　　IP67 Rated: Connectors with an IP67 rating offer a high degree of protection against dust and water immersion (up to 1 meter for 30 minutes), suitable for use in harsh environments.

　　IP68 Rated: Connectors with an IP68 rating provide a higher level of protection against dust and prolonged water immersion under specified conditions, making them usable underwater.　

　　IV. Classification by Application

　　Power Connectors: Used for connecting power cables. They are subdivided into types such as high-voltage, low-voltage, DC, and AC.

　　Signal Connectors: Used for transmitting signals. Categories include digital, analog, high-frequency, and fiber optic.

　　Data Connectors: Used for data transmission. Types include serial, parallel, USB, radar, and satellite data connectors.

　　Hybrid Optoelectronic Connectors: Used for transmitting both optical and electrical signals. Types include fiber optic, hybrid electro-optical, and LED connectors.

　　In summary, circular connectors are characterized by their compact structure, high protection ratings, and good corrosion resistance, leading to widespread use in aerospace, industrial automation, machine vision, and other fields. Based on connection method, structure, protection level, and application, circular connectors can be classified into various types, each with distinct characteristics and suitable application scopes. Users should select the appropriate connector based on their specific requirements.