Disassembly diagram of automobile heater The electrical switch of automobile cold and hot air is broken. How to open it by hand?

If the switch is broken, you can't switch it on, you can only change the switch. The heating system of a car can heat the air inside the car or suck the air inside the car from the outside, thus increasing the temperature inside the car. There are many kinds of automobile heating systems, which can be divided into hot water heating system, gas heating system and tail gas heating system according to different heat sources. Hot water heating system is mainly used for cars, and gas heating system is mainly used for large vehicles.

Working principle of hot water heating system;

The heat source of hot water heating system usually uses the cooling water of the engine to make the cooling water flow through a heater core, and then uses a blower to blow cold air through the heater core to heat the air, thus increasing the temperature inside the car.

The structure of the heater core consists of water pipes and radiating fins. The cooling water of the engine enters the water pipe of the heater core, radiates heat through the radiator fins, and then returns to the cooling system of the engine.

The water valve is used to control the amount of water entering the heater core, and then adjust the heating amount of the heating system. When adjusting, it can be controlled by adjusting lever or knob on the control panel.

The blower is composed of a speed-adjustable DC motor and a squirrel-cage fan. Its function is to blow air through the heater core and send it into the car after heating.