What is a refrigerator thermostat? Structure & role of refrigerator thermostat

Refrigerator thermal relay is an important and indispensable component in protecting the refrigerator compressor, an effective tool to ensure stable operation of the equipment. In this article, lassho.edu.vn will share with you what is a refrigerator thermostat? Structure and role of refrigerator thermostat!

What is a refrigerator thermostat?

Thermal relays are also known as thermal relays . This is a device that can automatically close and disconnect the circuit when the current shows signs of overload. These thermal relays work based on the expansion of metal rods when heated.

Structure of refrigerator thermostat

Refrigerator thermal relays usually have 2 types and different uses:

• Refrigerator thermal relay used to preserve food in the freezer compartment is a type with contacts used to switch on and off the compressor.
• Refrigerator thermal relay used to preserve food in the refrigerator compartment is the type with door to adjust the wind speed.

The structure of the thermostat of the refrigerator is quite simple, including:

• The temperature sensor contains a volatile medium to convert the cold chamber temperature signal into a pressure signal.
• The stacker helps to transmit the pressure signal to the mechanical expansion of the stacker by between the stacker and the ducted thermocouple.
• The lever mechanism will help turn the expansion of the folding box into a decisive contact closing action.
• The spring and screw system helps to adjust the temperature from the coldest mode to the coldest mode.

Working principle of refrigerator thermostat

The working principle of the refrigerator thermostat is quite simple. When the temperature in the refrigerator drops to the allowable level, causing the metal steel plate to expand unevenly, the pressure in the thermocouple and in the stacking box drops to the point that the flip mechanism flips downwards, disconnecting the top switch and circuit stops working.

When the contact surface temperature rises again below the safe level, the pressure in the stacker increases, the stack gradually expands. Then the metal plate reaches a flat state and the circuit closes.

The role of the refrigerator thermostat

Refrigerator thermal relay is used to protect the refrigerator compressor when When the electrical equipment shows signs of overload, sometimes the current is greater than the allowable level, sometimes it drops below the allowable level. Therefore, its main use is to be used to interrupt the circuit immediately when needed.

Refrigerator thermal relay has the role of helping the refrigerator operate more durable and stable, minimizing damage caused by the current falling into an unstable state during electricity use. Thermal relay is considered one of the most important devices in the refrigeration system.

So, lassho.edu.vn shared with you what is a refrigerator thermostat? Structure and role of refrigerator thermostat. Hope the above information will help you. Leave a comment below the article if you have any questions!