Do you know how the bimetal strip inside the thermal protector works？Let me show you！#thermalprotector #motorprotection #motorpump #windowmotor #wipermotor #pedal #tailgate #waterpump
A bimetal sheet is a composite material composed of two or more metals or other materials with suitable properties.
The bimetal sheet is also called a thermal bimetal sheet. Since the thermal expansion coefficients of each component layer are different, when the temperature changes, the deformation of the active layer is greater than that of the passive layer, so that the whole bimetal sheet will bend to the side of the passive layer. , then the curvature of the composite material changes to produce deformation.
The temperature protection principle of 8AM thermal protector: current passes through the bimetallic strip. When the motor or electrical appliance fails to work normally and the temperature is too high, the bimetallic shrapnel of the thermal protector breaks the silver contact to protect the motor or electrical appliance. When cooled to a safe temperature, the contacts are automatically closed and reset.
The current overload protection principle of 8AM thermal protector: the auxiliary heating sheet in the thermal protector is matched with the bimetal sheet, which has the function of precisely controlling the tripping time of overload current. When the motor (household appliances, transformers, etc.) is blocked or overloaded, the thermal protector can cut off the circuit instantly to protect the motor.

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