Heat-pump air conditioning cabinet assembly of electric car

Abstract

The invention discloses a heat-pump air conditioning cabinet assembly of an electric car. The heat-pump air conditioning cabinet assembly comprises a first cabinet body assembly and a second cabinet body assembly, wherein the first cabinet body assembly is integrated with an air inlet component and a volute fan component, the second cabinet body assembly is integrated with a heat exchanging component and a dispatcher component, and the air inlet component, the volute fan component, the heat exchanging component and the dispatcher component are sequentially communicated; the heat exchanging component comprises a front heat exchanging chamber and a rear heat exchanging chamber, the front heat exchanging chamber is communicated with the rear heat exchanging chamber through an air guide channel, an indoor evaporator, an indoor condenser and a slide air door are mounted in the front heat exchanging chamber, the slide air door is located at the rear end of the front heat exchanging chamber, and a waste heat recycling hot air core and a PTC electric heater are mounted in the rear heat exchanging chamber. By the structure, the heat-pump air conditioning cabinet assembly has the advantages that the heat-pump air conditioning cabinet assembly is compact in structure, small and exquisite in size and low in noise; under a heating mode, the heat-pump air conditioning cabinet assembly is large in heat exchanging area, high in heating capacity, high in energy efficiency, capable of utilizing waste heat in cooling pipelines, capable of achieving fast starting to provide hot air and capable of effectively lowering energy consumption.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to an electric vehicle heat pump air conditioning box assembly. Background technique [0002] Compared with traditional vehicles, electric vehicles can achieve centralized treatment of pollutants, and, with the gradual increase in the proportion of clean power generation methods such as nuclear power, wind power, and hydropower in my country, electric vehicles have a smaller impact on the environment than traditional vehicles. The requirements for emission reduction are gradually becoming stricter, and the development prospects of electric vehicles are widely optimistic. Since the heating of traditional fuel vehicles uses the waste heat heating system of the water tank, this heating and heating system is based on the vehicle engine. Therefore, the air conditioners of traditional fuel vehicles cannot be directly applied to electric vehicles, and the air condition...

AI Technical Summary

Problems solved by technology

Because the heating of traditional fuel vehicles uses the waste heat heating system of the water tank, this heating and heating system is based on the vehicle engine. Therefore, the air conditioner of traditional fuel vehicles cannot be directly applied to electric vehicles, and the air conditioner of electric vehicles must be redesigned.

[0003] The existing electric vehicle air conditioner installs the indoor evaporator for cooling in the front heat exchange chamber, and installs the indoor condenser and / or PTC electric heater for heating in the rear heat exchange chamber. In order to meet the requirements of heating efficiency, we can only increase the area of ​​the rear heat exchange chamber, and the direct consequence of increasing the area of ​​the rear heat exchange chamber is to increase the volume of the air conditioning assembly or compress the size of the air duct and other structures. , causing the existing electric vehicle air conditioners to be larger or unable to meet the requirements of NVH and heating capacity

Moreover, in the heating mode of the existing electric vehicle air conditioner, the wind sent out for a period of time when it is just started is not heated, and it needs to wait for a period of time to send out warm air, which cannot realize rapid start-up heating

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