Whole vehicle HVAC system and air conditioning mode conversion method

Abstract

The invention aims to provide a whole vehicle HVAC system and an air conditioning mode conversion method. The whole vehicle HVAC system comprises an air conditioning device, an HVAC controller and a whole vehicle auxiliary heating device, wherein the air conditioning device comprises a shell, an air conditioning mode conversion device, two air inlet boxes, a linkage driving device, an evaporator and an air conditioning heater; the shell is provided with an air outlet cavity and two air inlet holes; the air conditioning mode conversion device is arranged in the air outlet cavity; the two air inlet boxes are provided with internal and external circulating air mode conversion devices and connected to the outer ends of the air inlet holes in a one-to-one matching manner; the linkage driving device is provided with two air-blast impellers extending into the inner ends of the air inlet holes in a one-to-one matching manner; the evaporator and the air conditioning heater are arranged in the air outlet cavity; a blowing-face air outlet is arranged at the front end of the shell; and a defrosting air outlet is arranged at the upper end of the shell. The whole vehicle HVAC system has lower speed of an air blower and higher efficiency of the air blower under the same air volume requirement so as to facilitate energy saving and noise reduction. In the cold weather, the whole vehicle auxiliary heating device is used for assisting in heating, so that the heating temperature and heating speed can meet the needs.

Description

technical field [0001] The invention relates to the field of air conditioning, in particular to a vehicle HVAC system. Background technique [0002] HVAC (English: Heating, Ventilation, Air-conditioning and Cooling) system is the air conditioning system, which is a control system including temperature, humidity, air cleanliness and air circulation; The refrigerant evaporates or condenses under the action of the compressor, which causes the evaporation or condensation of the surrounding air to achieve the purpose of changing the temperature and humidity. The structure of the HVAC system can be understood from an automobile air-conditioning HVAC system disclosed in the invention of Chinese patent application number CN201410853666.1. The traditional HVAC system has the disadvantages that the fan installed in the air inlet channel takes in the air from one side, the wind pressure is higher, the fan speed is higher and the efficiency is lower under the same air volume requiremen...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the existence of the current HVAC system through the single-sided air intake of the fan located in the air inlet. The same air volume requires higher wind pressure, higher fan speed and lower efficiency. In cold weather, the heating temperature and heating speed And heating power consumption can not meet the needs, provide a vehicle HVAC system with lower wind pressure, lower fan speed and higher efficiency under the same air volume requirements, heating temperature, heating speed and heating power consumption in cold weather can meet the needs and air conditioner mode switching method

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