Electric automobile heat management system

A thermal management system and electric vehicle technology, applied in the field of electric vehicle thermal management systems, can solve the problems of incomplete functional scenarios of thermal management systems, interrelated motor thermal management, and poor control, and achieve low cost, small number of uses, and control simple effect

Pending Publication Date: 2021-09-28
SOUTH AIR INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the functional scenarios of the electric vehicle thermal management system are not comprehensive, and the balance between the mileage, comfort and safety of the electric vehicle in the actual environment cannot be well achieved, mainly in the passenger compartment thermal management, battery thermal management, motor The three aspects of thermal management are interconnected and poorly controlled

Method used

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  • Electric automobile heat management system
  • Electric automobile heat management system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] see figure 1 , is a thermal management system for an electric vehicle, including a refrigerant circuit, a battery circuit, and a motor circuit; wherein refrigerant is provided in the refrigerant circuit, and coolant is provided in the battery circuit and the motor circuit;

[0087] The refrigerant circuit includes a compressor 1, a first SV switch valve 2, an external condenser 9, a first one-way valve 7, a liquid storage tank 6, an ETXV cut-off thermal expansion valve 29, an evaporator 30, a second SV switch valve 3, Built-in condenser 4, second one-way valve 5, first EXV electronic expansion valve 8, third SV switch valve 10, second EXV electronic expansion valve 27, battery cooling Chiller 28; the refrigerant circuit includes the first refrigerant circuit, the second refrigerant circuit circuit, the third refrigerant circuit, the fourth refrigerant circuit, and the fifth refrigerant circuit;

[0088] The first refrigerant circuit includes a compressor 1 connected in...

Embodiment 2

[0152] see figure 2 , the difference between this embodiment and Embodiment 1 is that in this embodiment, HVH34 and high-voltage PTC37 are used to replace the warm air circuit, wherein, the high-voltage PTC37 is installed in the automobile air conditioning box for compensation heating of the passenger compartment; the second battery circuit includes sequentially The HVH34, the second three-way 20, the second water pump 21, the battery pack 23, and the fourth three-way valve 24 are connected in series to form a closed loop. The HVH34 heats the cooling liquid to heat the battery pack 23.

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PUM

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Abstract

The invention belongs to the technical field of automobile heat management, and relates to an electric automobile heat management system, which comprises a refrigerant loop, a battery loop, a warm air loop and a motor loop, wherein a refrigerant is arranged in the refrigerant loop, and cooling liquid is arranged in the battery loop, the warm air loop and the motor loop. According to the electric vehicle heat management system, through mutual correlation coupling of the refrigerant loop, the warm air loop, the battery loop and the motor loop, waste heat of the motor and the like is fully utilized, independent or mutual correlation operation of passenger compartment heat management, battery heat management and motor heat management in different functional scenes can be achieved, and the cooling and heating function requirements of the heat management system are met. The thermal management system is comprehensive in function scene, low in cost, simple in system and convenient to control.

Description

technical field [0001] The invention belongs to the technical field of automobile thermal management, and relates to an electric vehicle thermal management system. Background technique [0002] For electric vehicles, the thermal management system not only affects the driving comfort of passenger vehicles, but also involves safety and energy consumption issues. How to achieve the balance between driving range, comfort and safety in the actual environment of electric vehicles Balance is an urgent problem to be solved in the design of electric vehicle thermal management system. At present, the functional scenarios of the thermal management system for electric vehicles are not comprehensive, and the balance between the driving range, comfort and safety of electric vehicles in the actual environment cannot be well achieved. The three aspects of thermal management are poorly interconnected and poorly controlled. SUMMARY OF THE INVENTION [0003] In view of this, the purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60H1/03B60L58/26B60L58/27H01M10/613H01M10/615H01M10/625H01M10/6556H01M10/6568H01M10/663
CPCB60H1/00392B60H1/00278B60H1/00271B60H1/034B60L58/26B60L58/27H01M10/613H01M10/615H01M10/625H01M10/6556H01M10/6568H01M10/663B60H2001/00307Y02T10/70Y02E60/10
Inventor 王洪强覃旗开张继鑫张瑞胡昊唐兴伟
Owner SOUTH AIR INT
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