Composition of electrical control system:
1. Compressor — refrigeration device;
2. Refrigerating light — used for lighting in refrigerating chamber;
3. Freezing fan — used for cooling capacity transmission and air circulation;
4. Steel tube heater — used to remove frosting on the surface of freezing evaporator;
5. Refrigerating switch — used to control the lighting in refrigerating chamber;
6. Temperature sensor — used to sense temperature;
7. Temperature fuse — used to cut off the connection between the steel tube heater and the power supply when
the defrosting temperature is abnormal.