CO2 air conditioning heat pump system

A heat pump system and air-conditioning technology, which is applied in the field of air-conditioning heat pumps, can solve problems such as increasing energy consumption, shortening battery life, and reducing battery performance, so as to achieve the effects of improving work performance, improving use efficiency, and improving battery life

CN108583204AActive Publication Date: 2018-09-28XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-09-28

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Abstract

The invention discloses a CO2 air conditioning heat pump system. An outlet of a compressor is connected with an inlet of an indoor gas cooler; an outlet of the indoor gas cooler is connected with inlets of a bypass valve and an expansion valve; an inlet of an outdoor heat exchanger is connected with outlets of the bypass valve and the expansion valve; a d-end inlet of a heat regenerator is connected with an outlet of the outdoor heat exchanger; a d-end outlet of the heat regenerator is connected with a port a of a three-way valve; a port b of the three-way valve is connected with one end of the expansion valve; a port c of the three-way valve is connected with an e-end outlet of the heat regenerator and an inlet of an energy accumulator; an inlet of an indoor heat exchanger is connected with the other end of the expansion valve; an outlet of the indoor heat exchanger is connected with an e-end inlet of the heat regenerator; the e-end outlet of the heat regenerator is connected with aninlet of the energy accumulator; and an outlet of the energy accumulator is connected with an inlet of the compressor. According to the CO2 air conditioning heat pump system, by reasonably arranging asystem process, the expansion valve and various electromagnetic valves are opened and closed by using a control unit; and therefore, conversion among three modes of a refrigeration mode, a heating mode and a dehumidification mode, and the functions of the unit are comprehensive.
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Description

technical field

[0001] The invention belongs to the technical field of air-conditioning heat pumps, in particular to a CO 2 Air conditioning heat pump system. Background technique

[0002] Electric vehicles overcome the dependence on fossil fuels of fuel vehicles, with diversified energy utilization, quietness and environmental protection, representing the trend of future automobile development. In the high-temperature environment in summer, the temperature inside the electric vehicle compartment is too high, so the car air conditioner is needed to cool down, so that the air temperature in the compartment drops to the comfort level; in terms of heating in winter, since the pure electric vehicle has no engine waste heat to use, Therefore, at present, pure electric vehicles basically use PTC electric heating for heating in winter. However, the battery storage capacity of pure electric vehicles is limited, and the use of electric heating for heating will inevitably affect the ...

Examples

Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] see figure 1 , electric vehicle air conditioning thermal management technology, including: compressor 1, indoor gas cooler 2, damper 3, bypass valve 4, expansion valve 5, outdoor heat exchanger 6, three-way valve 7, expansion valve 8, indoor Heat exchanger 9 , regenerator 10 , accumulator 11 , air duct 12 , battery temperature controller 13 and air valve 14 .

[0037] The three-way valve 7 includes three ports of a port, b port and c port;

[0038] The outlet of the compressor 1 is connected to the inlet of the indoor gas cooler 2, the outlet of the indoor gas cooler 2 is connected to the inlet of the bypass valve 4 and the expansion valve 5, and the inlet of the outdoor heat exchanger 6 is connected to the inlet of the bypass valve 4 and the expansion valve 5 Outlet, the d-end inlet of the regenerator 10 is connected to the outlet of the outdoor hea...