What are the types and uses of relays?

Relays are widely used, and here are some typical examples:

- Home appliance control: In home appliances such as refrigerators and washing machines, relays are used to control the start and stop of motors.

- Automotive electronics: Lights, wipers, air conditioning systems, etc. in vehicles all require relays for control.

- Industrial automation: In production lines, relays are used to control the actions of motors, valves, and other actuators.

- Communication equipment: In communication equipment such as telephone switches and routers, relays are used for signal transmission and switching.