1. Main functions
Position detection: detect whether the door or moving parts are in the open, closed or intermediate position.
Safety protection: prohibit equipment operation when the door is not closed to prevent accidents.
Automation control: trigger corresponding operations (such as starting or stopping equipment) according to the state of the door.
Alarm prompt: sound an alarm when the door is abnormally opened.
2. Common types
Mechanical limit switch: simple structure, low cost, suitable for most occasions.
Example: micro switch, roller limit switch.
Magnetic limit switch: detect the position of the door through magnets and magnetic sensors. Suitable for occasions requiring non-contact detection.
Photoelectric limit switch: detect the position of the door using infrared beams. Suitable for high-precision or clean environments.
Inductive limit switch: detect the position of the door by sensing the approach of metal objects. Suitable for industrial automation equipment.
3. Application scenarios
Industrial equipment: detect the status of equipment doors and covers to ensure safe operation.
Example: machine tools, power distribution cabinets, automated production lines.
Household appliances: Detect the open and close status of washing machines, microwave ovens, and refrigerator doors.
Automatic door systems: Detect the opening and closing of doors and control the operation of motors.
Elevators and rail transit: Detect the status of elevator doors or car doors to ensure safety.
