Mechanical keys

Mechanical keys

Mechanical keys were explained based on the number of bridges and throws, but the following can be mentioned from other mechanical models: Button keys: It is one of the types of momentary switches that maintains contact with a spring mechanism inside its structure until the moment of pressure is applied, and after the pressure is removed, the contact is cut off. Floating keys: Float switches are usually used to control DC and AC pump motors according to the liquid or water in the tank. This switch works when the float (or floating object) moves up or down based on the water level in a tank. This floating movement of the rod or chain assembly and the balance weight causes the electrical contacts to open or close.


...The most common element of the thermal sensor is the bimetallic strip, which works on the principle of thermal expansion

Features of mechanical keys The most common element of the thermal sensor is the bimetallic strip, which works on the principle of thermal expansion. Bimetallic strips are made of two dissimilar metals (which have different thermal expansion rates) and bonded together. Switch contacts operate when temperature causes the tape to bend or twist. Another way the temperature switch works is to use a mercury glass tube. When the bulb heats up, the mercury in the tube expands and then creates pressure to operate the contacts. Other examples include push buttons, flow, push buttons, etc.

Outlet is one of the components of connecting to electricity in various applications. This product is discussed in the second part of this speech as a supplement in checking the structure and function of switches and sockets. The task of sockets is, in fact, to transfer the alternating current that reaches them to the electrical equipment. Sockets are divided into two main categories: domestic and industrial. Of course, these divisions do not have much difference in appearance.

...The most common element of the thermal sensor is the bimetallic strip, which works on the principle of thermal expansion

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