What is a Micro Switch and How Does it Work?

A micro switch is a small but important component that is commonly used in a variety of electronic devices. Despite its small size, it plays a crucial role in ensuring that these devices function properly. In this article, we'll take a closer look at what a micro switch is, how it works, and where you might find it in your everyday life.

  • Definition and Function of a Micro Switch.

A micro switch is a type of electrical switch that is designed to be operated by a very small force. It consists of a spring-loaded lever or button that is pushed or released by a small amount of physical pressure. When the lever or button is pushed, it causes the switch to close, allowing electrical current to flow through the circuit. When the pressure is released, the switch opens again, cutting off the flow of current. Micro switches are commonly used in a variety of electronic devices, including appliances, automotive systems, and industrial equipment.




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What kind of metal is in a micro switch?

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What kind of metal is in a micro switch? Most of the microswitch includes these parts, like a lever, Internal lever, Terminals (NC/NC and Common), Plunger, Case, Cover, Contacts, Movable Plate, Sharpnel/ Spring, etc. And the parts of the lever, terminals, contact, movable plate, shrapnel or spring are all made of metal. Because of different requirements, like anti-corrosion, micro switch manufacturers will use different kinds of metal to assemble them. As a result, these kinds of requirements will cause a different price for a micro switch. Generally, most of the material for these metal parts in a micro switch is alloy. For example, the microswitch lever and Internal lever are stainless steel, and the terminals could be Cu alloy or ferroalloy with silver or gold plate. What’s more, the metal contact is Cu and Ag alloy material. Most of the shrapnel is a copper alloy and the Spring is SWC. All in all, the kind of metal in a micro switch most of them is Cu alloy! You can try to separat
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The Micro Switch in Electric Rice Cooker

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  How a Micro Switch work in an Electric Rice Cooker? In fact, the micro switch plays a safety switch role in the electric cooker to prevent heating without food. I mean if no food inside, the power will not turn on, but when we put the rice and water in it, the electric appliance power will be turned on and begin to cook. Meanwhile, the switch will ensure the lid closing at all times, which not only is more efficient but safe for users as well. Where is the micro switch in the electric rice cooker? As the picture shows that the switch is at the bottom of the cooker, and we also can take it off easily. T he  C ommon  P roblems  & Repair Method of a Micro Switch Firstly, as time pass by, the terminals will become rusty that the continuity will be affected. For this situation, we can use a new one to replace or burnish to reduce the rust. Secondly, you can’t pressure the switch down because the plunger damage. The solution is to open the microswitch inside and uses a new one to repla
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