Heat pump air conditioning system and electric automobile

A heat pump air conditioner and battery technology, applied in vehicle components, high-efficiency conditioning technology, air treatment equipment, etc., can solve the problem of no battery heating system, unable to meet the requirements of battery heating, etc., to facilitate pipeline layout and improve charging and discharging efficiency. , the effect of ensuring safety

CN107356022AActive Publication Date: 2017-11-17BYD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-11-17

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Abstract

The invention discloses a heat pump air conditioning system and an electric automobile. The heat pump air conditioning system comprises a compressor, an indoor condenser, an indoor steamer, an outdoor heat exchanger and a battery pack containing a steamer, wherein the compressor communicates with the indoor condenser; the indoor condenser communicates with the outdoor heat exchanger via a first throttling branch or a first through-flow branch; the outdoor heat exchanger communicates with the compressor via a second through-flow branch or communicates with the indoor steamer via a second throttling branch; the indoor steamer communicates with the compressor; the steamer in the battery pack communicates with indoor heat exchanger or the indoor steamer via a connected or disconnected battery cooling branch, and communicates with the compressor via a connected or disconnected battery heating branch; and the steamer in the battery pack communicates with the compressor via a connected or disconnected battery cooling backflow branch, and communicates with the indoor condenser via a connected or disconnected battery heating backflow branch. Therefore, heating energy efficiency can be improved and the battery pack can be heated or cooled by the air conditioning system.
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Description

technical field

[0001] The invention relates to the field of air conditioning for electric vehicles, in particular to a heat pump air conditioning system and the electric vehicle. Background technique

[0002] Electric vehicles do not have the engine waste heat that traditional vehicles use for heating, so they cannot provide a heating source. Therefore, the air-conditioning system of the electric vehicle must have the function of heating itself, that is, adopt a heat pump type air-conditioning system and / or electric heating for heating.

[0003] The utility model patent whose publication number is CN205039220U discloses a cooling system for an automobile power battery. Although this system can be used in various types of electric vehicles to cool the battery air conditioning system, but the system only has a cooling system and no battery heating system. This patented technology can only meet the high-temperature cooling of the battery, and cannot meet the requirements of h...

Examples

Embodiment Construction

[0049] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0050] In the present invention, unless stated otherwise, the used orientation words such as "up, down, left, right" are usually relative to the drawing direction of the drawings, and "upstream and downstream" are relative to Medium, for example, in terms of the flow direction of the refrigerant, specifically, the flow direction toward the refrigerant is downstream, and the flow direction away from the refrigerant is upstream, and "inside and outside" refer to the inside and outside of the corresponding component outline.

[0051] In the present invention, electric vehicles may include pure electric vehicles, hybrid vehicles, and fuel cell vehicles.

[0052] f...