What is a micro switch?
A micro switch is a quick-acting switch that completes the connection or disconnection of contacts in an instant when an external mechanical force acts through a transmission element.
It's everywhere
Not only in mice and electric kettles, but also in many commonly used devices. The microwave oven at home won't start if the door isn't closed properly, and it's the micro switch on the door edge that prevents microwave leakage. The washing machine won't spin if the door isn't closed tightly, and this is also the function of the micro switch. The printer in the office won't work if the paper tray isn't placed correctly, and the micro switch inside can detect whether the paper tray is in place. It also plays a certain role in industrial equipment and the automotive industry.
Why are micro switches so important?
Micro switches can ensure the safety of use, such as in household appliances like microwave ovens, washing machines, and elevators. They prevent equipment from operating in an unsafe state and ensure safe operation. Micro switches are very durable. Good micro switches can be pressed hundreds of thousands or even millions of times. Mice are used every day, but the micro switch inside can last for a long time without frequent replacement. Micro switches are very flexible and can be made in different shapes to fit different devices, whether it's a small button on a household appliance or a lever on an industrial machine.
Conclusion
Micro switches may seem ordinary, and many people don't even know their name, but we use them every day. The next time you press the electric kettle or click the mouse and hear a "click", it might be the micro switch at work. This small part doesn't require complex technology, but it can turn simple pressing into reliable control and has become an indispensable helper in our lives and work.
Post time: Sep-25-2025
