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Vehicle air-conditioning system

An automotive air conditioning system, a technology outside the cabin, used in vehicle components, air handling equipment, heating/cooling equipment, etc. Temperature and humidity, the effect of meeting comfort requirements

Active Publication Date: 2013-07-17
HANGZHOU SANHUA RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the various heating methods mentioned above, if an independent heat source is used, such as purely using PTC for heating, it will consume more battery energy, which will reduce the mileage of the car; if fuel heating is used, not only the heating efficiency is low, It will also pollute the environment and increase the load on the car
In addition, the current car air conditioner blows out cold air in the compartment during demisting, which will cause discomfort in the compartment when the weather is relatively cold.

Method used

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Embodiment approach

[0048] Introduce the second specific embodiment of the present invention below, as image 3 shown. The difference between this embodiment and the above first embodiment is that there is no fourth electromagnetic valve or electromagnetic control valve 16 in this embodiment, but a second electromagnetic three-way valve or a second electromagnetic three-way valve is arranged in front of the first branch and the second branch. Three-way control valve 28, the second electromagnetic three-way valve 28 can control the on-off of the second branch, and lead to the caliber of the second branch through the pipeline path of the second branch or the second electromagnetic three-way valve 28 to control the proportion of the refrigerant leading to the second branch; in addition, if the three-way control valve 28 is used, the proportion of the refrigerant leading to the second branch can be directly controlled through the three-way control valve 28; The proportion of refrigerant leading to t...

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Abstract

The invention discloses a vehicle air-conditioning system, which comprises a compressor, a vapor-liquid separator which is arranged in front of an air inlet of the compressor, an external heat exchanger and a throttling component; the external heat exchanger comprises a top collecting pipe, a bottom collecting pipe and a flat pipe between the top collecting pipe and the bottom collecting pipe; and in a deicing mode, at least part of a high-temperature and high-pressure coolant flows into the bottom collecting pipe and flows into the external heat exchanger from one end of the bottom collecting pipe. According to the vehicle air-conditioning system, defrosting or deicing is more rapid, and the required time of deicing is shorter.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioning, such as an automobile air conditioning system, in particular to an electric automobile air conditioning system. Background technique [0002] When the heat pump air conditioner performs low-temperature heating in winter, the outdoor unit is prone to frost or ice under certain outdoor environmental conditions. Due to the isolation effect of frost or ice accumulation on the outdoor heat exchanger, this effect reduces The heat transfer between the refrigerant side and the air side affects the heating effect of the heat pump air conditioner; and the heat exchanger outside the compartment of the automotive air conditioner is more obvious due to the harsher external environment. [0003] In the existing technology, most of the defrosting methods of the heat pump air conditioner are to switch the four-way valve to the cooling operation state after the air conditioner is shut down. Fi...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/22B60H1/32
Inventor 黄宁杰李雄林
Owner HANGZHOU SANHUA RES INST CO LTD
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