CN113715581A - Integrated thermal management system for electric automobile - Google Patents

Integrated thermal management system for electric automobile Download PDF

Info

Publication number
CN113715581A
CN113715581A CN202111161224.7A CN202111161224A CN113715581A CN 113715581 A CN113715581 A CN 113715581A CN 202111161224 A CN202111161224 A CN 202111161224A CN 113715581 A CN113715581 A CN 113715581A
Authority
CN
China
Prior art keywords
loop
motor
battery
warm air
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111161224.7A
Other languages
Chinese (zh)
Other versions
CN113715581B (en
Inventor
张瑞
覃旗开
张继鑫
王洪强
胡昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South Air International Co Ltd
Original Assignee
South Air International Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by South Air International Co Ltd filed Critical South Air International Co Ltd
Priority to CN202111161224.7A priority Critical patent/CN113715581B/en
Publication of CN113715581A publication Critical patent/CN113715581A/en
Application granted granted Critical
Publication of CN113715581B publication Critical patent/CN113715581B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention belongs to the technical field of automobile thermal management, and relates to an integrated thermal management system of an electric automobile, which comprises a refrigerant loop, a battery loop, a motor loop and a warm air loop; the battery circuit, the motor circuit and the warm air circuit are all provided with cooling liquid. The integrated heat management system of the electric automobile fully utilizes the residual heat of the motor and the like through the mutual correlation coupling of the refrigerant loop, the warm air loop, the battery loop and the motor loop, can realize different functional scenes of independent or mutual correlation operation of heat management of the passenger compartment, the battery heat management and the motor heat management, and meets the cooling and heating functional requirements of the heat management system. The thermal management system has the advantages of comprehensive functional application scenes, low cost, simple system and convenience in control.

Description

Integrated thermal management system for electric automobile
Technical Field
The invention belongs to the technical field of automobile thermal management, and relates to an integrated thermal management system for an electric automobile.
Background
For an electric automobile, the thermal management system not only influences the driving comfort of a passenger car, but also involves the problems of safety and energy consumption, and how to realize the balance among the driving range, the comfort and the safety of the electric automobile in the actual environment is a problem which is urgently needed to be solved by the design of the thermal management system of the electric automobile.
At present, the thermal management system of the electric automobile mainly changes too many electronic valves, combination valves and the like to cause abnormal sound, overlarge control cost, too many types of parts, larger difficulty in maintaining and replacing the parts, larger difficulty in the state of the parts and relatively poorer safety of a passenger compartment. The system also has the advantages of more parts and large occupied space.
Disclosure of Invention
In view of this, the invention aims to realize independent or associated operation among passenger cabin thermal management, battery thermal management and motor thermal management under different functional scenes, and provides an integrated thermal management system for an electric vehicle.
In order to achieve the purpose, the invention provides the following technical scheme:
an integrated thermal management system of an electric automobile comprises a refrigerant loop, a battery loop, a motor loop and a warm air loop; the battery circuit, the motor circuit and the warm air circuit are all provided with cooling liquid;
the refrigerant loop comprises a compressor, a water-cooled condenser, a liquid storage tank, an EXV electronic expansion valve and a motor Chiller which are sequentially connected in series to form a closed loop;
the warm air loop comprises a warm air core body, a second tee joint, a third tee joint, a first water pump, an HVH, a first tee joint, a second tee joint, a first tee joint, a second water pump, a ninth tee joint, a fifth tee joint, a cooling core body, a sixth tee joint, a seventh tee joint, a first stop valve, a third stop valve, a ninth tee joint and a high-temperature radiator; the warm air loop comprises a first warm air loop, a second warm air loop, a third warm air loop and a fourth warm air loop;
the first warm air loop comprises the warm air core, a second tee joint, a third tee joint, a water-cooled condenser, a first water pump, an HVH (high pressure steam), a first tee joint, a second tee joint and a first tee joint which are sequentially connected in series;
the second warm air loop comprises the motor Chiller, a second water pump, a ninth three-way valve, a fifth three-way valve, a cooling core body, a sixth three-way valve, a first three-way valve, a warm air core body, a second three-way valve, a third three-way valve, a sixth three-way valve, a third stop valve and a ninth three-way valve which are sequentially connected in series;
the third warm air loop is sequentially connected in series to form the water-cooled condenser, the first water pump, the HVH, the first three-way valve, the high-temperature radiator, the first stop valve and the third tee joint which are closed loops;
the fourth warm air loop comprises the cooling core body, a sixth three-way valve, a seventh three-way valve, a sixth three-way valve, a third stop valve, a ninth three-way valve, a motor Chiller, a second water pump, a ninth three-way valve and a fifth three-way valve which are sequentially connected in series to form a closed loop;
the battery loop comprises a battery, a battery Chiller, a fourth water pump and a fourth tee joint; the battery loops comprise a first battery loop, a second battery loop and a third battery loop;
the first battery loop comprises a battery, a battery Chiller and a fourth water pump which are sequentially connected in series to form a closed loop;
the second battery loop is sequentially connected in series to form a closed loop of the battery Chiller, a fourth three-way valve, a seventh three-way valve, a sixth three-way valve, a third stop valve, a ninth three-way valve, a motor Chiller, a second water pump, a ninth three-way valve, a fifth three-way valve and a fourth three-way valve;
the third battery loop comprises the battery Chiller, a fourth three-way valve, a third three-way valve, a water-cooled condenser, a first water pump, an HVH, a first three-way valve, a second three-way valve and a fourth three-way valve which are sequentially connected in series to form a closed loop;
the motor loop comprises a motor, a seventh three-way valve, an eighth three-way valve, a third water pump, a DCDC, a low-temperature radiator and a fifth three-way valve; the motor loops comprise a first motor loop, a second motor loop and a third motor loop;
the first motor loop comprises the third water pump, the DCDC, the motor, a seventh three-way valve, an eighth three-way valve and an eighth three-way valve which are sequentially connected in series to form a closed loop;
the second motor loop comprises the motor Chiller, a second water pump, a ninth three-way valve, a fifth three-way valve, a low-temperature radiator, a second stop valve, an eighth three-way valve, a third water pump, a DCDC, a motor, a seventh three-way valve and a ninth three-way valve which are sequentially connected in series to form a closed loop;
the third motor loop comprises a third water pump, a DCDC, a motor, a seventh three-way valve, an eighth three-way valve, a fifth three-way valve, a low-temperature radiator, a second stop valve and an eighth three-way valve which are sequentially connected in series to form a closed loop.
Furthermore, temperature sensors are arranged on a connecting pipeline between the HVH and the first three-way valve, a connecting pipeline between the second water pump and the ninth three-way valve, a connecting pipeline between the DCDC and the motor and a connecting pipeline between the battery Chiller and the battery.
Further, the integrated heat management system comprises passenger cabin heat management, battery heat management and motor heat management;
the passenger compartment thermal management comprises a passenger compartment cooling mode, a passenger compartment heating mode and a passenger compartment heat pump demisting mode; the passenger compartment heating modes comprise a first passenger compartment heating mode, a second passenger compartment heating mode, a third passenger compartment heating mode and a passenger compartment HVH heating mode;
the battery thermal management comprises a battery self-circulation mode, a battery cooling mode, a battery heat pump heating mode and a battery HVH heating mode;
the motor heat management mode comprises a motor self-circulation mode, a motor radiator cooling mode and a motor heat pump cooling mode.
Further, the working modes of the passenger compartment cooling mode are as follows: opening the refrigerant loop, the second warm air loop and the third warm air loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the second warm air loop and the third warm air loop respectively;
the cooling liquid in the third warm air loop absorbs the heat in the refrigerant through the water-cooled condenser and dissipates the heat through the high-temperature radiator; the refrigerant is cooled by the water-cooled condenser and then evaporated and absorbs heat through the motor Chiller, and the heat of the cooling liquid in the second warm air loop is absorbed; after cooling liquid in the second warm air loop is cooled by a Chiller of the motor, the passenger compartment is cooled by the cooling core body and the warm air core body.
Further, the operation mode of the first passenger compartment heating mode is as follows: starting the refrigerant loop, the first warm air loop and the second motor loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop and the second motor loop respectively;
cooling liquid in the second motor loop absorbs environmental heat through the low-temperature radiator and absorbs motor waste heat at the same time; the cooling liquid absorbing heat transfers heat to a refrigerant through a motor Chiller; the refrigerant transfers heat to the cooling liquid in the first warm air loop through the water-cooled condenser; and after absorbing heat, the coolant in the first warm air loop heats the passenger cabin through the warm air core body.
Further, the operation mode of the second passenger compartment heating mode is as follows: opening the refrigerant loop, the first warm air loop, the first motor loop and the second motor loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the first motor loop and the second motor loop;
the cooling liquid performs heat absorption and heat release circulation on the motor through the first motor loop to maintain the temperature of the motor; the cooling liquid absorbs the ambient temperature through a low-temperature radiator in the second motor loop, absorbs the heat of the motor, and transfers the heat to the refrigerant through a motor Chiller; the refrigerant transfers heat to the cooling liquid in the first warm air loop through the water-cooled condenser; the cooling liquid in the first warm air loop heats the passenger cabin through the warm air core.
Further, the operation mode of the third passenger compartment heating mode is as follows: opening the refrigerant loop, the first warm air loop, the first motor loop, the second motor loop and the third motor loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the first motor loop, the second motor loop and the third motor loop; the cooling liquid in the first motor loop, the second motor loop and the third motor loop transfers the motor waste heat to the refrigerant through the motor Chiller, the refrigerant transfers the heat to the cooling liquid in the first warm air loop through the water-cooled condenser, and the passenger cabin is heated through the warm air core body; wherein, the cooling liquid releases heat or absorbs heat in the environment through the low-temperature radiator.
Further, the operation modes of the HVH heating mode of the passenger compartment are as follows: starting the first warm air loop; the cooling liquid circularly flows in the first warm air loop; the cooling liquid is heated by HVH and then heats the passenger compartment through the warm air core body.
Further, the working modes of the passenger compartment heat pump cooling demisting mode are as follows: starting the refrigerant loop, the first warm air loop, the second motor loop and the fourth warm air loop; simultaneously adjusting the sixth three-way valve to enable the sixth three-way valve to be communicated with the first three-way valve; the cooling liquid absorbs environmental heat through the low-temperature radiator, the refrigerant absorbs waste heat of the motor through the motor Chiller and circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the second motor loop and the fourth warm air loop; the refrigerant absorbs the waste heat of the motor through a motor Chiller, heat is transferred to cooling liquid in a first warm air loop through a water-cooled condenser, and the cooling liquid heats the glass through a warm air core body to demist; meanwhile, cooling liquid in the fourth warm air loop cools the passenger cabin through the cooling core body; and the cooling liquid in the second motor loop absorbs heat in the environment through the low-temperature radiator.
Further, the working mode of the battery self-circulation mode is as follows: opening a first battery loop of the battery loops; the coolant circulates in the first battery circuit, and the battery is subjected to heat absorption and heat release cycles to maintain the battery temperature.
Further, the battery cooling mode comprises the following working modes: opening the refrigerant loop, the first battery loop, the third warm air loop and the second battery loop;
the cooling liquid in the first battery loop transfers the heat of the battery to the cooling liquid in the second battery loop through a Chiller of the battery to cool the battery; the cooling liquid in the second battery loop transfers heat to the cooling medium through the motor Chiller, the cooling medium transfers heat to the cooling liquid in the third warm air loop through the water-cooled condenser, and the cooling liquid in the third warm air loop releases heat outwards through the high-temperature radiator.
Further, the operation modes of the battery heat pump heating mode are as follows: opening the refrigerant loop, the first battery loop, the third battery loop and the second motor loop;
the heat energy absorbed by the low-temperature radiator in the second motor loop and the motor waste heat are transferred to the refrigerant through the motor Chiller, the refrigerant transfers the heat to the cooling liquid in the third battery loop through the water-cooled condenser, and the cooling liquid in the third battery loop transfers the heat to the cooling liquid in the first battery loop through the battery Chiller to heat the battery.
Further, the operation mode of the battery HVH heating mode is as follows: starting the first battery loop and the third battery loop; the cooling liquid respectively circulates in the first battery loop and the third battery loop, and the cooling liquid in the third battery loop is heated by HVH and then transfers heat to the cooling liquid in the first battery loop through the battery Chiller to heat the battery.
Further, the working modes of the motor self-circulation mode are as follows: starting the first motor loop; the cooling liquid circularly flows in the first motor loop to perform heat absorption and heat release circulation on the motor and maintain the temperature of the motor.
Further, the working modes of the cooling mode of the motor radiator are as follows: and starting the third motor loop, enabling the cooling liquid to circularly flow in the third loop, and absorbing the heat of the motor and the DCDC after the cooling liquid releases heat energy through the low-temperature radiator to cool the motor and the DCDC.
Further, the working modes of the motor heat pump cooling mode are as follows: starting the refrigerant loop, the first warm air loop, the first battery loop, the third battery loop, the first motor loop, the second motor loop and the third motor loop;
the coolant absorbs the waste heat of the motor and the heat absorbed by the low-temperature radiator through the motor Chiller, transfers the heat to the cooling liquid in the first warm air loop and the third battery loop through the water-cooled condenser, heats the passenger cabin through the warm air core body by the cooling liquid in the first warm air loop and the third battery loop, and/or heats the battery by transferring the heat to the cooling liquid in the first battery loop through the battery Chiller.
The invention has the beneficial effects that:
1) the integrated design of this scheme refrigerant system, the system is simple, and control is simple, and the part is less, and the cost is lower.
2) According to the scheme, the heat management system fully utilizes the residual heat of the motor and the like through the mutual correlation coupling of the warm air loop, the battery loop and the motor loop, can realize independent or mutual correlation operation of different functional scenes of passenger cabin heat management, battery heat management and motor heat management, and meets the cooling and heating function requirements of the heat management system. The thermal management system has the advantages of comprehensive functional application scenes, low cost, simple system and convenience in control.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is an overall schematic diagram of an electric vehicle integrated thermal management system in the present invention 1.
Reference numerals: 1-a compressor; 2-water-cooled condenser; 3-a liquid storage tank; 4-EXV electronic expansion valve; 5-motor Chiller; 6-warm air core body; 7-a second tee; 8-a third three-way valve; 9-a third tee; 10-a first water pump; 11-HVH; 12-a first three-way valve; 13-a second three-way valve; 14-a first tee; 15-a second water pump; 16-a ninth three-way valve; 17-a fifth three-way valve; 18-a cooling core; 19-a sixth three-way valve; 20-a sixth tee; 21-a seventh tee; 22-a first shut-off valve; 23-a third stop valve; 24-a ninth tee; 25-high temperature heat sink; 26-a low temperature heat sink; 27-a fifth tee; 28-an eighth three-way valve; 29-a second stop valve; 30-an eighth tee; 31-a third water pump; 32-DCDC; 33-a motor; 34-a seventh three-way valve; 35-a battery; 36-battery Chiller; 37-a fourth water pump; 38-fourth tee; 39-fourth three-way valve.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, an integrated thermal management system for an electric vehicle includes a coolant loop, a battery loop, a motor loop, and a warm air loop; wherein, the refrigerant loop is provided with a refrigerant, and the battery loop, the motor loop and the warm air loop are all provided with cooling liquid;
the refrigerant loop comprises a compressor 1, a water-cooled condenser 2, a liquid storage tank 3, an EXV electronic expansion valve 4 and a motor Chiller5 which are sequentially connected in series to form a closed loop;
the warm air loop comprises a warm air core body 6, a second tee joint 7, a third three-way valve 8, a third tee joint 9, a first water pump 10, HVH11, a first three-way valve 12, a second three-way valve 13, a first three-way valve 14, a second water pump 15, a ninth three-way valve 16, a fifth three-way valve 17, a cooling core body 18, a sixth three-way valve 19, a sixth three-way valve 20, a seventh three-way valve 21, a first stop valve 22, a third stop valve 23, a ninth three-way valve 24 and a high-temperature radiator 25; the warm air loop comprises a first warm air loop, a second warm air loop, a third warm air loop and a fourth warm air loop;
the first warm air loop comprises a warm air core body 6, a second tee joint 7, a third three-way valve 8, a third tee joint 9, a water-cooled condenser 2, a first water pump 10, an HVH11, a first three-way valve 12, a second three-way valve 13 and a first three-way valve 14 which are sequentially connected in series;
the second warm air loop comprises a motor Chiller5, a second water pump 15, a ninth three-way valve 16, a fifth three-way valve 17, a cooling core 18, a sixth three-way valve 19, a first three-way valve 14, a warm air core 6, a second three-way valve 7, a third three-way valve 8, a sixth three-way valve 20, a third stop valve 23 and a ninth three-way valve 24 which are sequentially connected in series;
the third warm air loop is sequentially connected in series to form a water-cooled condenser 2, a first water pump 10, an HVH11, a first tee joint 14 valve, a high-temperature radiator 25, a first stop valve 22 and a third tee joint 9 which are closed loops;
the fourth warm air loop comprises a cooling core body 18, a sixth three-way valve 19, a seventh three-way valve 21, a sixth three-way valve 20, a third stop valve 23, a ninth three-way valve 24, a motor Chiller5, a second water pump 15, a ninth three-way valve 16 and a fifth three-way valve 17 which are sequentially connected in series to form a closed loop;
the battery loop comprises a battery 35, a battery Chiller36, a fourth water pump 37 and a fourth tee 38; the battery loop comprises a first battery loop, a second battery loop and a third battery loop;
the first battery loop comprises a battery 35, a battery Chiller36 and a fourth water pump 37 which are sequentially connected in series to form a closed loop;
the second battery loop is sequentially connected in series to form a closed-loop battery Chiller36, a fourth three-way valve 39, a seventh three-way valve 21, a sixth three-way valve 20, a third stop valve 23, a ninth three-way valve 24, a motor Chiller5, a second water pump 15, a ninth three-way valve 16, a fifth three-way valve 17 and a fourth three-way valve 38;
the third battery 35 loop comprises a battery Chiller36, a fourth three-way valve 39, a third three-way valve 8, a third three-way valve 9, a water-cooled condenser 2, a first water pump 10, an HVH11, a first three-way valve 12, a second three-way valve 13 and a fourth three-way valve 38 which are sequentially connected in series to form a closed loop;
the motor loop comprises a motor 33, a seventh three-way valve 34, an eighth three-way valve 28, an eighth three-way valve 30, a third water pump 31, DCDC32, a low-temperature radiator 26 and a fifth three-way valve 27; the motor loop comprises a first motor loop, a second motor loop and a third motor loop;
the first motor loop comprises a third water pump 31, a DCDC32, a motor 33, a seventh three-way valve 34, an eighth three-way valve 28 and an eighth three-way valve 30 which are sequentially connected in series to form a closed loop;
the second motor loop comprises a motor Chiller5, a second water pump 15, a ninth three-way valve 16, a fifth three-way valve 27, a low-temperature radiator 26, a second stop valve 29, an eighth three-way valve 30, a third water pump 31, a DCDC32, a motor 33, a seventh three-way valve 34 and a ninth three-way valve 24 which are sequentially connected in series to form a closed loop;
the third motor loop comprises a third water pump 31, a DCDC32, a motor 33, a seventh three-way valve 34, an eighth three-way valve 28, a fifth three-way valve 27, a low-temperature radiator 26, a second stop valve 29 and an eighth three-way valve 30 which are sequentially connected in series to form a closed loop.
A temperature sensor T1 is installed on a connecting pipeline between the HVH11 and the first three-way valve 12, a temperature sensor T2 is installed on a connecting pipeline between the second water pump 15 and the ninth three-way valve 16, a temperature sensor T3 is installed on a connecting pipeline between the DCDC32 and the motor 33, and a temperature sensor T4 is installed on a connecting pipeline between the battery Chiller36 and the battery 35.
The integrated heat management system comprises passenger cabin heat management, battery heat management and motor heat management;
the passenger compartment thermal management comprises a passenger compartment cooling mode, a passenger compartment heating mode and a passenger compartment heat pump demisting mode; the passenger compartment heating modes comprise a first passenger compartment heating mode, a second passenger compartment heating mode, a third passenger compartment heating mode and a passenger compartment HVH heating mode;
the battery thermal management comprises a battery self-circulation mode, a battery cooling mode, a battery heat pump heating mode and a battery HVH heating mode;
the motor heat management mode comprises a motor self-circulation mode, a motor radiator cooling mode and a motor heat pump cooling mode.
The working modes of the passenger compartment cooling mode are as follows: when the ambient temperature is higher and the passenger compartment has a cooling demand, the refrigerant loop, the second warm air loop and the third warm air loop are started; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the second warm air loop and the third warm air loop respectively;
the coolant in the third warm air loop absorbs the heat in the refrigerant through the water-cooled condenser 2 and radiates the heat through the high-temperature radiator 25; the refrigerant is cooled by the water-cooled condenser 2, evaporated and absorbed heat by the motor Chiller5, and the heat of the cooling liquid in the second warm air loop is absorbed; after the cooling liquid in the second warm air loop is cooled by the motor Chiller5, the passenger compartment is cooled by the cooling core 18 and the warm air core 6.
The working mode of the first passenger compartment heating mode is as follows: when the heating requirement of a passenger compartment is large or the waste heat of a motor is just started in winter of the whole vehicle is insufficient, a refrigerant loop, a first warm air loop and a second motor loop are started; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop and the second motor loop respectively;
the cooling liquid in the second motor loop absorbs the environmental heat through the low-temperature radiator 26 and simultaneously absorbs the waste heat of the motor 33; the cooling liquid absorbing heat transfers heat to a refrigerant through a motor Chiller 5; the refrigerant transfers heat to the cooling liquid in the first warm air loop through the water-cooled condenser 2; after absorbing heat, the coolant in the first warm air loop heats the passenger compartment through the warm air core 6.
The working mode of the second passenger compartment heating mode is as follows: when the heating requirement of the passenger compartment is not large and the temperature difference of the motor is large, the refrigerant loop, the first warm air loop, the first motor loop and the second motor loop are started; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the first motor loop and the second motor loop;
the cooling liquid performs heat absorption and heat release circulation on the motor 33 through the first motor loop, and maintains the temperature of the motor 33; the cooling liquid absorbs the ambient temperature through the low-temperature radiator 26 in the second motor loop, absorbs the heat of the motor 33, and transfers the heat to the refrigerant through the motor Chiller 5; the refrigerant transfers heat to the cooling liquid in the first warm air loop through the water-cooled condenser 2; the coolant in the first warm air loop heats the passenger compartment through the warm air core 6.
The working mode of the third passenger compartment heating mode is as follows: when the heating requirement of the passenger compartment is not large and the residual heat of the motor is sufficient, a refrigerant loop, a first warm air loop, a first motor loop, a second motor loop and a third motor loop are started; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the first motor loop, the second motor loop and the third motor loop; the residual heat of the motor 33 is transferred to the refrigerant by the cooling liquid in the first motor loop, the second motor loop and the third motor loop through the motor Chiller5, the heat of the refrigerant is transferred to the cooling liquid in the first warm air loop through the water-cooled condenser 2, and the passenger compartment is heated through the warm air core 6; wherein the coolant radiates or absorbs heat from the environment through the low temperature radiator 26.
The working modes of the HVH heating mode of the passenger compartment are as follows: when the ambient temperature is lower than the lowest temperature at which the heat pump can operate, starting a first warm air loop; the cooling liquid circularly flows in the first warm air loop; the cooling liquid is heated by HVH11 and then passes through warm air core 6 to heat the passenger compartment.
Wherein, the working mode of passenger cabin heat pump cooling defogging mode does: when the ambient temperature is low, the passenger cabin needs to be heated, and the glass needs to be demisted due to fogging, the refrigerant loop, the first warm air loop, the second motor loop and the fourth warm air loop are started; simultaneously adjusting the sixth three-way valve 19 to communicate the sixth three-way valve 19 with the first three-way valve 14; the cooling liquid absorbs the environmental heat through the low-temperature radiator 26, the refrigerant absorbs the waste heat of the motor 33 through the motor Chiller5 and circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the second motor loop and the fourth warm air loop; the refrigerant absorbs the waste heat of the motor 33 through the motor Chiller5, the heat is transferred to the cooling liquid in the first warm air loop through the water-cooled condenser 2, and the cooling liquid heats the glass through the warm air core 6 to demist; meanwhile, the cooling liquid in the fourth warm air loop cools the passenger compartment through the cooling core 18; wherein the cooling liquid in the second motor circuit absorbs heat from the environment through the low temperature radiator 26.
The working mode of the battery self-circulation mode is as follows: when the battery has no cooling and heating requirements, in order to ensure the temperature uniformity of the battery, a first battery loop in the battery loops is started; the coolant circulates through the first battery circuit, and circulates heat absorption and heat release to the battery 35, thereby maintaining the temperature of the battery 35.
The working modes of the battery cooling mode are as follows: when the internal temperature of the battery is high and reaches a certain temperature, in order to ensure the service life and the safety of the battery, a refrigerant loop, a first battery loop, a third warm air loop and a second battery loop are started;
the cooling liquid in the first battery loop transfers the heat of the battery 35 to the cooling liquid in the second battery loop through the battery Chiller36 to cool the battery 35; the cooling liquid in the second battery loop transfers heat to the cooling medium through the motor Chiller5, the cooling medium transfers heat to the cooling liquid in the third warm air loop through the water-cooled condenser 2, and the cooling liquid in the third warm air loop releases heat to the outside through the high-temperature radiator 25.
The working modes of the battery heat pump heating mode are as follows: when the ambient temperature is low, the battery is in a low-temperature state, the heat of the battery is not enough to ensure the highest efficiency work of the battery, the charging and discharging power of the battery is limited, the charging speed and the endurance performance of the whole vehicle are influenced, and in order to ensure the normal work of a battery system, a refrigerant loop, a first battery loop, a third battery loop and a second motor loop are started;
the heat energy absorbed by the low-temperature radiator 26 in the second motor loop and the waste heat of the motor 33 are transferred to the refrigerant through the motor Chiller5, the refrigerant transfers the heat to the cooling liquid in the third battery loop through the water-cooled condenser 2, and the cooling liquid in the third battery loop transfers the heat to the cooling liquid in the first battery loop through the battery Chiller36, so that the battery 35 is heated.
The work mode of the battery HVH heating mode is as follows: when the battery heating demand is large and the environmental temperature and the waste heat are low, the first battery loop and the third battery loop are started; the cooling liquid respectively circulates in the first battery loop and the third battery loop, and the cooling liquid in the third battery loop is heated by HVH11, and then heat is transferred to the cooling liquid in the first battery loop through the battery Chiller36 to heat the battery 35.
The working modes of the motor self-circulation mode are as follows: when the environment temperature is low and the whole vehicle is cold started, the motor temperature is low, and a first motor loop is started; the coolant circulates through the first motor circuit, and circulates the motor 33 by absorbing and releasing heat, thereby maintaining the temperature of the motor 33.
Wherein, the mode of operation of motor radiator cooling mode does: when the temperature of the motor is high, the motor has a cooling demand, and the motor waste heat is not effectively utilized, the third motor loop is started, the cooling liquid circularly flows in the third loop, and the cooling liquid absorbs the heat of the motor 33 and the DCDC32 after releasing the heat energy through the low-temperature radiator 26, so that the motor 33 and the DCDC32 are cooled.
The working modes of the motor heat pump cooling mode are as follows: when the ambient temperature is low and the waste heat is sufficient, and the passenger compartment or the battery has a heating demand, the refrigerant loop, the first warm air loop, the first battery loop, the third battery loop, the first motor loop, the second motor loop and the third motor loop are started;
the refrigerant absorbs the residual heat of the motor 33 and the heat absorbed by the low-temperature radiator 26 through the motor Chiller5, the heat is transferred to the cooling liquid in the first warm air loop and the third battery loop through the water-cooled condenser 2, the cooling liquid in the first warm air loop and the third battery loop heats the passenger compartment through the warm air core body 6, and/or the heat is transferred to the cooling liquid in the first battery loop through the battery Chiller36 to heat the battery 35.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (16)

1. An electric automobile integrated form thermal management system which characterized in that: the system comprises a refrigerant loop, a battery loop, a motor loop and a warm air loop; the battery circuit, the motor circuit and the warm air circuit are all provided with cooling liquid;
the refrigerant loop comprises a compressor, a water-cooled condenser, a liquid storage tank, an EXV electronic expansion valve and a motor Chiller which are sequentially connected in series to form a closed loop;
the warm air loop comprises a warm air core body, a second tee joint, a third tee joint, a first water pump, an HVH, a first tee joint, a second tee joint, a first tee joint, a second water pump, a ninth tee joint, a fifth tee joint, a cooling core body, a sixth tee joint, a seventh tee joint, a first stop valve, a third stop valve, a ninth tee joint and a high-temperature radiator; the warm air loop comprises a first warm air loop, a second warm air loop, a third warm air loop and a fourth warm air loop;
the first warm air loop comprises the warm air core, a second tee joint, a third tee joint, a water-cooled condenser, a first water pump, an HVH (high pressure steam), a first tee joint, a second tee joint and a first tee joint which are sequentially connected in series;
the second warm air loop comprises the motor Chiller, a second water pump, a ninth three-way valve, a fifth three-way valve, a cooling core body, a sixth three-way valve, a first three-way valve, a warm air core body, a second three-way valve, a third three-way valve, a sixth three-way valve, a third stop valve and a ninth three-way valve which are sequentially connected in series;
the third warm air loop is sequentially connected in series to form the water-cooled condenser, the first water pump, the HVH, the first three-way valve, the high-temperature radiator, the first stop valve and the third tee joint which are closed loops;
the fourth warm air loop comprises the cooling core body, a sixth three-way valve, a seventh three-way valve, a sixth three-way valve, a third stop valve, a ninth three-way valve, a motor Chiller, a second water pump, a ninth three-way valve and a fifth three-way valve which are sequentially connected in series to form a closed loop;
the battery loop comprises a battery, a battery Chiller, a fourth water pump and a fourth tee joint; the battery loops comprise a first battery loop, a second battery loop and a third battery loop;
the first battery loop comprises a battery, a battery Chiller and a fourth water pump which are sequentially connected in series to form a closed loop;
the second battery loop is sequentially connected in series to form a closed loop of the battery Chiller, a fourth three-way valve, a seventh three-way valve, a sixth three-way valve, a third stop valve, a ninth three-way valve, a motor Chiller, a second water pump, a ninth three-way valve, a fifth three-way valve and a fourth three-way valve;
the third battery loop comprises the battery Chiller, a fourth three-way valve, a third three-way valve, a water-cooled condenser, a first water pump, an HVH, a first three-way valve, a second three-way valve and a fourth three-way valve which are sequentially connected in series to form a closed loop;
the motor loop comprises a motor, a seventh three-way valve, an eighth three-way valve, a third water pump, a DCDC, a low-temperature radiator and a fifth three-way valve; the motor loops comprise a first motor loop, a second motor loop and a third motor loop;
the first motor loop comprises the third water pump, the DCDC, the motor, a seventh three-way valve, an eighth three-way valve and an eighth three-way valve which are sequentially connected in series to form a closed loop;
the second motor loop comprises the motor Chiller, a second water pump, a ninth three-way valve, a fifth three-way valve, a low-temperature radiator, a second stop valve, an eighth three-way valve, a third water pump, a DCDC, a motor, a seventh three-way valve and a ninth three-way valve which are sequentially connected in series to form a closed loop;
the third motor loop comprises a third water pump, a DCDC, a motor, a seventh three-way valve, an eighth three-way valve, a fifth three-way valve, a low-temperature radiator, a second stop valve and an eighth three-way valve which are sequentially connected in series to form a closed loop.
2. The integrated thermal management system for electric vehicles according to claim 1, wherein: and temperature sensors are arranged on a connecting pipeline between the HVH and the first three-way valve, a connecting pipeline between the second water pump and the ninth three-way valve, a connecting pipeline between the DCDC and the motor and a connecting pipeline between the battery Chiller and the battery.
3. The integrated thermal management system for electric vehicles according to claim 1, wherein: the integrated heat management system comprises passenger cabin heat management, battery heat management and motor heat management;
the passenger compartment thermal management comprises a passenger compartment cooling mode, a passenger compartment heating mode and a passenger compartment heat pump demisting mode; the passenger compartment heating modes comprise a first passenger compartment heating mode, a second passenger compartment heating mode, a third passenger compartment heating mode and a passenger compartment HVH heating mode;
the battery thermal management comprises a battery self-circulation mode, a battery cooling mode, a battery heat pump heating mode and a battery HVH heating mode;
the motor heat management mode comprises a motor self-circulation mode, a motor radiator cooling mode and a motor heat pump cooling mode.
4. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the passenger compartment cooling mode are as follows: opening the refrigerant loop, the second warm air loop and the third warm air loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the second warm air loop and the third warm air loop respectively;
the cooling liquid in the third warm air loop absorbs the heat in the refrigerant through the water-cooled condenser and dissipates the heat through the high-temperature radiator; the refrigerant is cooled by the water-cooled condenser and then evaporated and absorbs heat through the motor Chiller, and the heat of the cooling liquid in the second warm air loop is absorbed; after cooling liquid in the second warm air loop is cooled by a Chiller of the motor, the passenger compartment is cooled by the cooling core body and the warm air core body.
5. The integrated thermal management system for electric vehicles of claim 3, wherein: the operation mode of the first passenger compartment heating mode is as follows: starting the refrigerant loop, the first warm air loop and the second motor loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop and the second motor loop respectively;
cooling liquid in the second motor loop absorbs environmental heat through the low-temperature radiator and absorbs motor waste heat at the same time; the cooling liquid absorbing heat transfers heat to a refrigerant through a motor Chiller; the refrigerant transfers heat to the cooling liquid in the first warm air loop through the water-cooled condenser; and after absorbing heat, the coolant in the first warm air loop heats the passenger cabin through the warm air core body.
6. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the second passenger compartment heating mode are as follows: opening the refrigerant loop, the first warm air loop, the first motor loop and the second motor loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the first motor loop and the second motor loop;
the cooling liquid performs heat absorption and heat release circulation on the motor through the first motor loop to maintain the temperature of the motor; the cooling liquid absorbs the ambient temperature through a low-temperature radiator in the second motor loop, absorbs the heat of the motor, and transfers the heat to the refrigerant through a motor Chiller; the refrigerant transfers heat to the cooling liquid in the first warm air loop through the water-cooled condenser; the cooling liquid in the first warm air loop heats the passenger cabin through the warm air core.
7. The integrated thermal management system for electric vehicles of claim 3, wherein: the operation mode of the third passenger compartment heating mode is as follows: opening the refrigerant loop, the first warm air loop, the first motor loop, the second motor loop and the third motor loop; the refrigerant circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the first motor loop, the second motor loop and the third motor loop; the cooling liquid in the first motor loop, the second motor loop and the third motor loop transfers the motor waste heat to the refrigerant through the motor Chiller, the refrigerant transfers the heat to the cooling liquid in the first warm air loop through the water-cooled condenser, and the passenger cabin is heated through the warm air core body; wherein, the cooling liquid releases heat or absorbs heat in the environment through the low-temperature radiator.
8. The integrated thermal management system for electric vehicles of claim 3, wherein: the operation modes of the HVH heating mode of the passenger compartment are as follows: starting the first warm air loop; the cooling liquid circularly flows in the first warm air loop; the cooling liquid is heated by HVH and then heats the passenger compartment through the warm air core body.
9. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the passenger compartment heat pump cooling demisting mode are as follows: starting the refrigerant loop, the first warm air loop, the second motor loop and the fourth warm air loop; simultaneously adjusting the sixth three-way valve to enable the sixth three-way valve to be communicated with the first three-way valve; the cooling liquid absorbs environmental heat through the low-temperature radiator, the refrigerant absorbs waste heat of the motor through the motor Chiller and circularly flows in the refrigerant loop, and the cooling liquid circularly flows in the first warm air loop, the second motor loop and the fourth warm air loop; the refrigerant absorbs the waste heat of the motor through a motor Chiller, heat is transferred to cooling liquid in a first warm air loop through a water-cooled condenser, and the cooling liquid heats the glass through a warm air core body to demist; meanwhile, cooling liquid in the fourth warm air loop cools the passenger cabin through the cooling core body; and the cooling liquid in the second motor loop absorbs heat in the environment through the low-temperature radiator.
10. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the battery self-circulation mode are as follows: opening a first battery loop of the battery loops; the coolant circulates in the first battery circuit, and the battery is subjected to heat absorption and heat release cycles to maintain the battery temperature.
11. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the battery cooling mode are as follows: opening the refrigerant loop, the first battery loop, the third warm air loop and the second battery loop;
the cooling liquid in the first battery loop transfers the heat of the battery to the cooling liquid in the second battery loop through a Chiller of the battery to cool the battery; the cooling liquid in the second battery loop transfers heat to the cooling medium through the motor Chiller, the cooling medium transfers heat to the cooling liquid in the third warm air loop through the water-cooled condenser, and the cooling liquid in the third warm air loop releases heat outwards through the high-temperature radiator.
12. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the battery heat pump heating mode are as follows: opening the refrigerant loop, the first battery loop, the third battery loop and the second motor loop;
the heat energy absorbed by the low-temperature radiator in the second motor loop and the motor waste heat are transferred to the refrigerant through the motor Chiller, the refrigerant transfers the heat to the cooling liquid in the third battery loop through the water-cooled condenser, and the cooling liquid in the third battery loop transfers the heat to the cooling liquid in the first battery loop through the battery Chiller to heat the battery.
13. The integrated thermal management system for electric vehicles of claim 3, wherein: the operation modes of the battery HVH heating mode are as follows: starting the first battery loop and the third battery loop; the cooling liquid respectively circulates in the first battery loop and the third battery loop, and the cooling liquid in the third battery loop is heated by HVH and then transfers heat to the cooling liquid in the first battery loop through the battery Chiller to heat the battery.
14. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the motor self-circulation mode are as follows: starting the first motor loop; the cooling liquid circularly flows in the first motor loop to perform heat absorption and heat release circulation on the motor and maintain the temperature of the motor.
15. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the cooling mode of the motor radiator are as follows: and starting the third motor loop, enabling the cooling liquid to circularly flow in the third loop, and absorbing the heat of the motor and the DCDC after the cooling liquid releases heat energy through the low-temperature radiator to cool the motor and the DCDC.
16. The integrated thermal management system for electric vehicles of claim 3, wherein: the working modes of the motor heat pump cooling mode are as follows: starting the refrigerant loop, the first warm air loop, the first battery loop, the third battery loop, the first motor loop, the second motor loop and the third motor loop;
the coolant absorbs the waste heat of the motor and the heat absorbed by the low-temperature radiator through the motor Chiller, transfers the heat to the cooling liquid in the first warm air loop and the third battery loop through the water-cooled condenser, heats the passenger cabin through the warm air core body by the cooling liquid in the first warm air loop and the third battery loop, and/or heats the battery by transferring the heat to the cooling liquid in the first battery loop through the battery Chiller.
CN202111161224.7A 2021-09-30 2021-09-30 Integrated heat management system of electric automobile Active CN113715581B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111161224.7A CN113715581B (en) 2021-09-30 2021-09-30 Integrated heat management system of electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111161224.7A CN113715581B (en) 2021-09-30 2021-09-30 Integrated heat management system of electric automobile

Publications (2)

Publication Number Publication Date
CN113715581A true CN113715581A (en) 2021-11-30
CN113715581B CN113715581B (en) 2024-04-09

Family

ID=78685582

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111161224.7A Active CN113715581B (en) 2021-09-30 2021-09-30 Integrated heat management system of electric automobile

Country Status (1)

Country Link
CN (1) CN113715581B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114132148A (en) * 2021-12-24 2022-03-04 广州小鹏汽车科技有限公司 Thermal management system and vehicle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019062553A1 (en) * 2017-09-29 2019-04-04 爱驰汽车有限公司 Automobile thermal management system, and automobile having same
WO2020088106A1 (en) * 2018-10-30 2020-05-07 珠海格力电器股份有限公司 Comprehensive thermal management system for integrated battery, motor, and electrical control unit based on heat pump air conditioner and method thereof
CN213383775U (en) * 2020-08-17 2021-06-08 南方英特空调有限公司 Heat pump system of automobile air conditioner
CN113147323A (en) * 2021-05-11 2021-07-23 东风汽车集团股份有限公司 Pure electric vehicle thermal management system and method
CN113276623A (en) * 2021-05-27 2021-08-20 东风汽车集团股份有限公司 Double-expansion-water-tank heat management system of hybrid electric vehicle and control method thereof
CN113352860A (en) * 2021-06-07 2021-09-07 黄冈格罗夫氢能汽车有限公司 Hydrogen fuel cell automobile thermal management system and control method
CN215971034U (en) * 2021-09-30 2022-03-08 南方英特空调有限公司 Integrated thermal management system for electric automobile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019062553A1 (en) * 2017-09-29 2019-04-04 爱驰汽车有限公司 Automobile thermal management system, and automobile having same
WO2020088106A1 (en) * 2018-10-30 2020-05-07 珠海格力电器股份有限公司 Comprehensive thermal management system for integrated battery, motor, and electrical control unit based on heat pump air conditioner and method thereof
CN213383775U (en) * 2020-08-17 2021-06-08 南方英特空调有限公司 Heat pump system of automobile air conditioner
CN113147323A (en) * 2021-05-11 2021-07-23 东风汽车集团股份有限公司 Pure electric vehicle thermal management system and method
CN113276623A (en) * 2021-05-27 2021-08-20 东风汽车集团股份有限公司 Double-expansion-water-tank heat management system of hybrid electric vehicle and control method thereof
CN113352860A (en) * 2021-06-07 2021-09-07 黄冈格罗夫氢能汽车有限公司 Hydrogen fuel cell automobile thermal management system and control method
CN215971034U (en) * 2021-09-30 2022-03-08 南方英特空调有限公司 Integrated thermal management system for electric automobile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114132148A (en) * 2021-12-24 2022-03-04 广州小鹏汽车科技有限公司 Thermal management system and vehicle
CN114132148B (en) * 2021-12-24 2023-09-12 广州小鹏汽车科技有限公司 Thermal management system and vehicle

Also Published As

Publication number Publication date
CN113715581B (en) 2024-04-09

Similar Documents

Publication Publication Date Title
CN107031347B (en) In-vehicle air conditioner
CN110549817B (en) Heat flow management device and method for operating a heat flow management device
CN215971034U (en) Integrated thermal management system for electric automobile
JP5860361B2 (en) Thermal management system for electric vehicles
CN102275521B (en) Thermal management system with dual mode coolant loops
CN108501658B (en) Thermal management system and car
CN101633306B (en) Vehicle HVAC and RESS thermal management
CN109774409B (en) Automobile heat management system
JP5996779B2 (en) Heating, ventilating and / or air conditioning apparatus with a device for controlling the temperature of the battery, and method of implementing the same
CN213199395U (en) Composite heat management device for electric vehicle
CN102104181A (en) Power accumulator heat management system and vehicle
CN111347934B (en) Thermal management system and method for fuel cell vehicle
US20180272830A1 (en) Heat pump system for a vehicle
JP2014037182A (en) Thermal management system for electric vehicle
CN215662844U (en) Electric automobile thermal management system
CN113442680B (en) Electric automobile thermal management system
CN116583420A (en) Heat pump assembly with cooler for battery powered vehicle and method of operating heat pump assembly
CN110450596A (en) For improving the atmosphere control system of electric vehicle distance
CN113715581A (en) Integrated thermal management system for electric automobile
CN116215186A (en) Vehicle-mounted thermal circulation system and vehicle
CN115257300A (en) Integrated thermal management module with eight-way valve and vehicle
CN115465039A (en) Cooling system for vehicle
CN114771208A (en) Electric automobile thermal management system
CN220826456U (en) Electric automobile thermal management system
CN219856733U (en) Vehicle-mounted thermal circulation system and vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant