Air-conditioning box, car air-conditioning unit and car

Abstract

The invention provides an air conditioning box, an automotive air conditioning device and an automobile. The air conditioning box comprises a box body and an air door, wherein an airflow inlet, an airflow outlet and an airflow channel connected with the airflow inlet and the airflow outlet are formed in the box body, the airflow channel comprises a warn air channel and a cold air channel. The air door comprises an inlet air door and an outlet air door. The air door seals the inlet end of the warn air channel through the inlet air door and seals the cold air position of the outlet end of the warn air channel through the outlet air door, the inlet air door seals the inlet end of the cold air channel, and the outlet air door opens the warm air position of the outlet end of the warn air channel. The air conditioning box is provided with the inlet air door and the outlet air door. The inlet end and the outlet end of the warm air channel are sealed in a refrigeration state to prevent the phenomenon that airflow enters the warn air channel and accordingly the refrigeration effect is poor, the phenomenon that cold air flows backwards and enters the warm air channel and accordingly air volume is decreased can be also avoided, and comfort can be effectively improved.

Description

technical field [0001] The invention relates to the field of automobile air conditioners, in particular to an air conditioning box, an automobile air conditioner and an automobile. Background technique [0002] At present, the air conditioner with integrated heating and cooling on the car usually uses the engine cooling water to exchange heat through the warm air core for heating. There is no water valve in the engine cooling water pipeline to control the flow of cooling water, so no matter what mode the air conditioner is in , the hot water system in the warm air core is kept unblocked, and the temperature damper device has only one damper, which can only control the inlet part of the cold and warm air passage, so there will be the following problems: [0003] 1. Often due to the position and structure of the temperature damper device, coupled with the vibration state caused by the operation of the car itself, in the ventilation and cold air mode, there will be air flow int...

AI Technical Summary

Problems solved by technology

[0003] 1. Often due to the position and structure of the temperature damper device, coupled with the vibration state caused by the operation of the car itself, in the ventilation and cold air mode, there will be air flow into the inlet part of the warm air channel, causing hot air to flow from the warm air channel Entering the car in the middle, reducing the comfort and cooling effect of the air conditioner, and increasing fuel consumption

[0004] 2. Since there is no sealing device at the outlet of the warm air channel, in the cold air and ventilation mode, part of the air will flow backward from the cold air channel into the warm air channel, which will cause a large wind resistance of the air channel inside the air conditioning system and reduce the air output

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