Electrical › Heating air conditioning ventilation system › Principle
系统说明 · T00610936

 System description系统说明

The heating/air conditioning/ventilation system includes cooling, heating, ventilation and defrosting functions.暖风/空调/通风系统包含制冷、制热、通风换气和除霜等功能。
heat pump air conditioner热泵空调
1. Refrigeration working principle:制冷工作原理：
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1 The refrigeration system is composed of an air conditioning compressor, an outdoor heat exchanger, an electronic expansion valve, a solenoid valve and an evaporator, which are connected to each other in turn through high and low pressure pipelines to form a sealed circulation system. Relevant auxiliary components include battery coolers, electronic fans, blowers, ventilation ducts and damper actuators to work together.制冷系统是由空调压缩机、室外换热器、电子膨胀阀、电磁阀和蒸发器组成，通过高、低压管路依次相互连接形成密封循环系统，相关辅助部件有电池冷却器、电子风扇、鼓风机、通风管道和风门执行机构配合工作。
2 During refrigeration operation, the air conditioner compressor sucks in medium-temperature and low-pressure gaseous refrigerant and compresses it into high-temperature and high-pressure gaseous refrigerant, and then sends it to the outdoor heat exchanger through the indoor condenser (not working at this time) and the solenoid valve. The outdoor air cools the outdoor heat exchanger under the action of the electronic fan, releases the heat of the refrigerant, and liquefies the high-temperature and high-pressure gaseous refrigerant into medium-temperature and high-pressure liquid refrigerant. It is output by the outdoor heat exchanger and sent to the electronic expansion valve through the pipeline. After being throttled and depressurized by the electronic expansion valve, the low temperature Pressurized liquid refrigerant enters the evaporator in the car, absorbs heat and cools down. The blower blows the air in the car to the evaporator. The cooled cold air is sent to each outlet in the car through the air duct. The medium-temperature and low-pressure gaseous refrigerant after the evaporator absorbs heat and vaporizes is sent to the air. The liquid separator returns to the compressor after being filtered by the gas-liquid separator, and then the compressor sends the gaseous refrigerant to the outdoor heat exchanger. In this way, the refrigerant is continuously liquefied and vaporized, ultimately reducing the air temperature inside the car.制冷工作时，空调压缩机吸入中温低压的气态制冷剂并压缩为高温高压气态制冷剂后经室内冷凝器（此时不工作）和电磁阀送至室外换热器，车外空气在电子风扇的作用下冷却室外换热器，释放制冷剂的热量，使高温高压气态制冷剂液化为中温高压液态制冷剂，由室外换热器输出，经过管道送至电子膨胀阀，经电子膨胀阀的节流降压作用后，低温低压液态制冷剂进入车内蒸发器，吸热降温，鼓风机将车内空气吹向蒸发器，被冷却后的冷空气通过风道送至车内各个出风口，经蒸发器吸热汽化后的中温低压气态制冷剂送至气液分离器，经过气液分离器过滤后又返回至压缩机内，然后压缩机再将气态制冷剂送至室外换热器，这样往复不断地进行制冷剂的液化和汽化过程，最终使车内空气温度降低。
3 By detecting the ambient temperature outside the car, the temperature inside the car, the refrigerant pressure state, the evaporator surface temperature and the sunshine intensity, etc., it controls the output power of the air conditioning compressor and the position status of each damper motor.通过检测车外环境温度、车内温度、制冷剂压力状态、蒸发器表面温度及日照强度等，控制空调压缩机的输出功率及各个风门电机的位置状态。
2. The working principle of heat pump heating:热泵制热工作原理：
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1 The heat pump heating system is composed of an air conditioning compressor, an indoor condenser, an electronic expansion valve, an outdoor heat exchanger, and a heating pipe. Related auxiliary components such as a blower, ventilation ducts, and damper actuators work together.热泵制热系统是由空调压缩机、室内冷凝器、电子膨胀阀、室外换热器和暖风水管等组成，相关辅助部件如鼓风机、通风管道和风门执行机构配合工作。
2 When the heat pump is heating, the air conditioning compressor compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant. When the refrigerant passes through the indoor condenser, it exchanges heat with the indoor condenser. The air is forced to blow through the blower of the air conditioning unit, causing the air to exchange heat with the indoor condenser. The air passing through the indoor condenser becomes hot and the temperature rises. Under the blowing of the blower, hot air is blown from the air duct to the passenger compartment, thus achieving the purpose of heating.热泵制热工作时，空调压缩机将制冷剂压缩成高温高压的气态制冷剂，冷媒经过室内冷凝器时与室内冷凝器换热，通过空调单元的鼓风机对空气强制吹风，使空气与室内冷凝器进行热交换，经过室内冷凝器的空气变热，温度升高，在鼓风机的吹动下，热风从风道吹到乘员舱，从而达到制热的目的。
post defrost后除霜
1. The user can activate/deactivate the heating and defrosting functions of the rear window and exterior rearview mirror by pressing the corresponding switch on the multimedia touch screen; pressing the button again cancels the function.用户可以通过按下多媒体触摸屏的相应开关，将启动/关闭后风窗及外后视镜加热除霜功能；再次按下按键取消功能。
2. If the rear defrost function is not turned off, the rear defrost function will continue to work for 15 minutes and then automatically turn off.如果没有关闭后除霜功能，那么后除霜功能将持续工作15分钟之后自动关闭。
PM2.5 sensorPM2.5传感器
After the vehicle wakes up or is powered on, the PM2.5 sensor in the vehicle monitors the concentration of PM2.5 particles in the vehicle in real time, and performs related real-time display of the PM2.5 concentration and the linkage air conditioning and purification device activation functions.车辆唤醒或是上电后，车内PM2.5传感器实时监测车内PM2.5颗粒物浓度，并进行相关实时显示PM2.5浓度和联动空调及净化装置开启功能。