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Heat pump air conditioning system and vehicle

A heat pump air conditioner and water pump technology, applied in heat pumps, vehicle components, air handling equipment, etc., can solve problems such as increased cost, increased risk of refrigerant leakage, and many joints, and achieves compact layout, simplified control, and improved temperature uniformity. sexual effect

Pending Publication Date: 2019-08-30
ZHEJIANG YINLUN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the heat generated by each heating device and battery is collected separately, some valves will be added correspondingly to control the system, which leads to more joints, which increases the risk of refrigerant leakage in the system and increases the cost

Method used

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  • Heat pump air conditioning system and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Embodiment 1: Heating mode combined with heat pump and waste heat recovery.

[0074]When the heat pump alone cannot meet the heat demand of the passenger compartment, the heat pump and waste heat recovery will be used in heating mode. The high-temperature and high-pressure refrigerant gas discharged from the electric compressor 120 flows to the third heat exchanger 130 , and the refrigerant liquid after being cooled and condensed in the third heat exchanger 130 is divided into two paths. All the way flows through the second expansion valve 140 for throttling to become a low-temperature and low-pressure two-phase refrigerant, then flows to the outdoor heat exchanger 150 to exchange heat with the external environment, and then passes through the second valve 160 to flow out from the third heat exchanger 130 The other path of liquid refrigerant passes through the first valve 510, the first expansion valve 530, and the second heat exchanger 710, enters the first heat exchan...

Embodiment 2

[0075] Embodiment 2: cooling mode.

[0076] In high temperature conditions, when the temperature of the passenger compartment needs to be cooled, the system activates the following operating modes.

[0077] The high-temperature and high-pressure refrigerant gas discharged from the electric compressor 120 passes through the third heat exchanger 130 and the second expansion valve 140 and then enters the outdoor heat exchanger 150 to release heat to the external environment to condense the internal refrigerant into a supercooled refrigerant. Pass through the check valve 310 and enter the third expansion valve 320 throttling to become a low-temperature low-pressure two-phase refrigerant, and then flow to the indoor evaporator 330 to cool the high-temperature air passing through the indoor evaporator 330, and use the blower to send the cooled air to the indoor evaporator 330. After entering the passenger compartment, the nearly saturated gaseous refrigerant flowing out from the ind...

Embodiment 3

[0078] Embodiment 3: battery cooling mode.

[0079] Under high-temperature conditions, when the vehicle needs to be fast-charged or the battery temperature rises rapidly due to other extreme conditions, the battery needs to be cooled. At this time, the system enables the following operating modes. The high-temperature and high-pressure refrigerant gas discharged from the electric compressor 120 passes through the third heat exchanger 130 and the second expansion valve 140 and then enters the outdoor heat exchanger 150 to release heat to the external environment to condense the internal refrigerant into a supercooled refrigerant. Pass through the one-way valve 310, and then throttle through the first expansion valve 530 to become a low-temperature and low-pressure two-phase refrigerant, and then flow to the second heat exchanger 710 to cool the high-temperature circulating fluid from the battery cooling plate 720, and the second heat exchanger The low-temperature near-saturated...

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Abstract

The invention relates to the technical field of vehicle manufacturing, in particular to a heat pump air conditioning system and a vehicle. The heat pump air conditioning system comprises a heat pump air conditioning unit, a heating piece cooling unit, a battery cooling unit and a first pipeline, wherein the heat pump air conditioning unit comprises an outdoor heat exchanger; the heating piece cooling unit comprises a heating piece cooling plate and a first heat exchanger which are connected with each other and form a loop; the battery cooling unit comprises a battery cooling plate and a secondheat exchanger which are connected with each other and form a loop; the first heat exchanger and the second heat exchanger are connected in series through the first pipeline, and the first pipeline is connected with the outdoor heat exchanger in parallel. According to the heat pump air conditioning system, the problem that in the prior art, the heat generated by a heating device can be recycled or cooled, the number of valves in the system is more and the corresponding joint is more, so that the risk of refrigerant leakage of the system is increased are avoided.

Description

technical field [0001] The present application relates to the technical field of vehicle manufacturing, in particular to a heat pump air-conditioning system and a vehicle. Background technique [0002] At present, because new energy electric vehicles do not have an engine, they cannot use the engine heat source to heat the passenger compartment in winter. This requires other methods to produce heat to supply the passenger compartment. From the perspective of customer comfort and vehicle economy, many companies have started The heat pump air-conditioning system using refrigerant is used to meet the heating needs of passengers under low ambient temperature, and the heat generated by the heating device in the vehicle is generally recycled, and the battery needs to be cooled or maintained to ensure that the battery works at a comfortable temperature range, thereby reducing power consumption and increasing cruising range. However, when the heat generated by each heating device a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/02F25B41/04B60H1/00F25B41/20
CPCF25B30/02B60H1/00278F25B41/20
Inventor 吴俊杨云顾毅亮贾明雨
Owner ZHEJIANG YINLUN MACHINERY
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