CN111186340A - Electric automobile heat management system and electric automobile - Google Patents

Electric automobile heat management system and electric automobile Download PDF

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Publication number
CN111186340A
CN111186340A CN202010099442.1A CN202010099442A CN111186340A CN 111186340 A CN111186340 A CN 111186340A CN 202010099442 A CN202010099442 A CN 202010099442A CN 111186340 A CN111186340 A CN 111186340A
Authority
CN
China
Prior art keywords
heater
pipeline
battery pack
heat
fuel
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.)
Pending
Application number
CN202010099442.1A
Other languages
Chinese (zh)
Inventor
蒋翱阳
肖军
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.)
Weltmeister Intelligent Travel Technology Shanghai Co Ltd
Original Assignee
Weltmeister Intelligent Travel Technology Shanghai 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 Weltmeister Intelligent Travel Technology Shanghai Co Ltd filed Critical Weltmeister Intelligent Travel Technology Shanghai Co Ltd
Priority to CN202010099442.1A priority Critical patent/CN111186340A/en
Publication of CN111186340A publication Critical patent/CN111186340A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods 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
    • B60L58/27Methods 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392Air-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/22Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/22Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods 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
    • B60L58/26Methods 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses an electric automobile heat management system and an electric automobile, wherein the electric automobile comprises a refrigerating system, a battery pack system, an air conditioning system and a fuel heater; the refrigeration system comprises a first heat exchanger; the battery pack system comprises a battery pack and a second heat exchanger; the air conditioning system comprises a first high-pressure heater and an air conditioning core body. The electric automobile heat management system and the electric automobile disclosed by the invention form a new system by arranging the fuel oil heater, the high-pressure heater is adopted for heating when the short mileage is required, the fuel oil heater is used for heating when the long mileage is required, the high-pressure heater and the fuel oil heater can be simultaneously adopted for combined heating, and the endurance mileage of the electric automobile is improved under the condition of not increasing the power consumption.

Description

Electric automobile heat management system and electric automobile
Technical Field
The invention relates to the technical field of electric vehicles, in particular to an electric vehicle heat management system and an electric vehicle.
Background
The problem of mileage decay in winter generally exists in present electric automobile, mainly because battery temperature is low can lead to the battery discharge capacity to weaken, only lets the battery temperature be in a reasonable interval can reduce the range of mileage decay.
However, high-voltage heaters are used for heating the passenger compartment of the electric automobile and heating the battery, and the high power causes large electricity consumption.
In summary, the following two reasons mainly cause the electric vehicle to have a short driving range in winter: first, the battery discharge capacity is low at low temperatures; secondly, the air conditioning and battery thermal management system consumes excessive energy.
In view of the above, it is necessary to provide an electric vehicle thermal management system and an electric vehicle that can improve cruising ability at low temperatures.
Disclosure of Invention
The technical scheme of the invention provides an electric automobile heat management system, which comprises a refrigerating system, a battery pack system, an air conditioning system and a fuel heater, wherein the refrigerating system is connected with the battery pack system;
the refrigeration system comprises a first heat exchanger;
the battery pack system comprises a battery pack and a second heat exchanger which are sequentially arranged on a second pipeline;
the second heat exchanger is connected with the first heat exchanger;
the air conditioning system comprises a first high-pressure heater and an air conditioning core body which are sequentially arranged on a third pipeline;
a medium outlet of the fuel oil heater is connected with a medium inlet of the third pipeline through a first pipeline, the first pipeline is connected with the second heat exchanger through a second pipeline, and a third pipeline is connected between the medium inlet of the fuel oil heater and the second heat exchanger;
a medium outlet of the third pipeline is connected with the second pipeline through a first three-way valve;
an intermediate communication pipeline is connected between the third pipeline and the second pipeline, and one end of the intermediate communication pipeline is connected with the second pipeline through a second three-way valve.
The fuel oil heater and/or the heat provided by the first high-pressure heater can heat the air conditioner core and/or the battery pack, the first high-pressure heater is used for heating when short mileage is required, the fuel oil heater is used for heating when long mileage is required, the first high-pressure heater and the fuel oil heater can be used for combined heating at the same time, and the cruising range of the electric automobile is increased under the condition that the power consumption is not increased.
Further, comprising: the fuel heater separately heats the air conditioner core body; the fuel heater and the first high-pressure heater jointly heat the air conditioner core; the fuel heater is used for heating the battery pack independently; the fuel heater and the first high-pressure heater jointly heat the battery pack; the fuel heater and the first high-pressure heater jointly heat the air conditioner core and the battery pack simultaneously. The conversion of different modes can be realized to satisfy different demands, the power consumption of the battery pack can be saved, and the cruising ability can be improved.
Further, a second high-pressure heater is arranged on the second pipeline, the battery pack can be heated, when the fuel oil heater simultaneously heats the air conditioner core body and the battery pack, the air conditioner core body is preferentially heated, and when the heat obtained by the battery pack from the fuel oil heater cannot meet the requirement, the second high-pressure heater can be used for heating as compensation.
Further, comprising: the second high-pressure heater solely heats the battery pack; the fuel heater and the second high-pressure heater jointly heat the battery pack; the fuel heater, the first high pressure heater and the second high pressure heater jointly heat the battery pack. The conversion of different modes can be realized to satisfy the heating demand to the battery package, improve the discharge capacity of battery package.
Furthermore, a first pump is arranged on the second pipeline, and a second pump is arranged on the third pipeline to provide power for the flowing of the medium.
Further, the refrigeration system comprises an external heat exchanger, a compressor, an evaporator and an expansion valve which are sequentially arranged on the first pipeline;
the first heat exchanger and the evaporator are connected in parallel on the first pipeline.
The first heat exchanger can be equivalent to an evaporator, is mainly used for cooling the battery pack, is mainly heated by a fuel oil heater when the battery pack is heated, saves electric energy and provides different mode selections.
Further, comprising: the refrigeration system can realize conversion of different modes for the cooling mode of the battery pack so as to meet different requirements.
Furthermore, an automatic control valve is arranged on a pipeline connected with the first heat exchanger and used for automatically controlling the opening and closing of the first heat exchanger to realize automatic control.
Furthermore, the first high-pressure heater and the second high-pressure heater are respectively PTC heaters, so that the heat resistance is small, and the heat exchange efficiency is high.
The technical scheme of the invention also provides an electric automobile which comprises the electric automobile heat management system in any one of the technical schemes. The high-pressure heater is used for heating when short mileage is required, the fuel oil heater is used for heating when long mileage is required, the high-pressure heater and the fuel oil heater can be used for combined heating, and the cruising mileage of the electric automobile is improved under the condition that the power consumption is not increased.
By adopting the technical scheme, the method has the following beneficial effects:
according to the electric automobile heat management system and the electric automobile, the fuel oil heater is arranged to form a new system, the high-pressure heater is used for heating when short mileage is required, the fuel oil heater is used for heating when long mileage is required, the high-pressure heater and the fuel oil heater can be used for heating simultaneously, and the endurance mileage of the electric automobile is improved under the condition that the power consumption is not increased.
Drawings
Fig. 1 is a schematic diagram of an electric vehicle thermal management system according to an embodiment of the present invention;
FIG. 2 is a schematic view of the fuel heater heating the air conditioning core alone or in combination with the first high pressure heater;
FIG. 3 is a schematic diagram of a fuel heater in combination with a first high pressure heater to heat the battery pack;
FIG. 4 is a schematic diagram of the fuel heater in combination with a first high pressure heater simultaneously heating the air conditioning core and the battery pack;
fig. 5 is a schematic diagram of the fuel heater heating the battery pack alone.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
The invention mainly aims at the improvement of the heating of an electric automobile heat system in winter, and can be called as an electric automobile heating system. When the refrigeration is needed in summer, the original air-conditioning refrigeration system is adopted, and the refrigeration part is out of the scope of the invention.
As shown in fig. 1 to 5, an embodiment of the present invention provides an electric vehicle thermal management system, which includes a refrigeration system 100, a battery pack system 200, an air conditioning system 300, and a fuel heater 11.
The refrigeration system 100 includes a first heat exchanger 5. The battery pack system 200 includes a battery pack 8 and a second heat exchanger 7, which are sequentially mounted on a second pipe 201. The second heat exchanger 7 is connected to the first heat exchanger 5.
The air conditioning system 300 includes a first high pressure heater 12 and an air conditioning core 14, which are in turn mounted on a third pipeline 301.
The medium outlet 112 of the fuel oil heater 11 is connected with the medium inlet 302 of the third pipeline 301 through the first pipeline 18, the first pipeline 18 is connected with the second heat exchanger 7 through the second pipeline 19, and the third pipeline 20 is connected between the medium inlet 111 of the fuel oil heater 11 and the second heat exchanger 7. The medium outlet 303 of the third line 301 is connected to the second conduit 19 via the first three-way valve 15. An intermediate communication line 17 is connected between the third line 20 and the second line 19, and one end of the intermediate communication line 17 is connected to the second line 19 via a second three-way valve 16.
The heat management system of the electric automobile provided by the invention can realize the following working modes by arranging the fuel heater 11:
the first mode is as follows: as shown in fig. 2, the fuel heater 11 alone heats the air conditioning core 14.
The fuel oil heater 11 heats the medium, and the heated medium enters the air conditioning core 14 for heat exchange after passing through the medium outlet 112, the first pipeline 18, the medium inlet 302 of the third pipeline 301, the third pipeline 301 and the first high-pressure heater 12. The air conditioning core 14 blows out heat by a fan to heat the interior of the work vehicle. The medium after heat exchange flows back to the fuel heater 11 through the medium outlet 303, the first three-way valve 15, the second pipeline 19, the second three-way valve 16, the intermediate communication pipeline 17, the third pipeline 20 and the medium inlet 111.
In the process, the first high-pressure heater 12 does not work, so that electric energy can be saved, the battery pack is suitable for long-distance running, and the cruising ability of the battery pack is improved. When the first high-pressure heater 12 is not in operation, the medium can be circulated through the pipes in the first high-pressure heater 12.
And a second mode: as shown in fig. 2, the fuel heater 11 and the first high-pressure heater 12 jointly heat the air conditioning core 14.
The fuel heater 11 and the first high-pressure heater 12 are operated simultaneously. When the vehicle is just started, the temperature in the vehicle is possibly low, the temperature needs to be raised quickly, and meanwhile, the first high-pressure heater 12 and the fuel heater 11 are started to heat jointly, so that the air conditioner core 14 can obtain more heat in a short time, and the temperature in the vehicle can be raised quickly.
And a third mode: as shown in fig. 5, the fuel heater 11 heats the battery pack 8 alone.
The fuel heater 11 heats the medium, the heated medium enters the second heat exchanger 7 through the medium outlet 112, the first pipeline 18 and the second pipeline 19, and after heat exchange, the medium flows back to the fuel heater 11 through the third pipeline 20. After the heat exchange, the temperature of the medium in the second line 201 rises, so that the battery pack 8 can be heated. In this mode, the first high pressure heater 12 does not operate, and power can be saved, thereby improving cruising ability. By heating the battery pack 8, the discharge capacity of the battery pack 8 is improved.
And a fourth mode: as shown in fig. 3, the fuel heater 11 and the first high pressure heater 12 jointly heat the battery pack 8.
The medium flowing out of the fuel oil heater 11 firstly enters the first high-pressure heater 12 through the third pipeline 301 and then is heated, then enters the second pipeline 19 through the air conditioner core body 10, and is supplied to the second heat exchanger 7 through the second pipeline 19 for heat exchange, and after the medium exchanges heat, the medium flows back to the fuel oil heater 11 through the third pipeline 20.
In this mode, the air conditioning core 10 may not operate, meeting the need to rapidly raise the temperature of the battery pack 8.
And a fifth mode: as shown in fig. 4, the fuel heater 11 and the first high pressure heater 12 combine to simultaneously heat the air conditioning core 14 and the battery pack 8.
In this mode, the medium circulates among the fuel heater 11, the first high-pressure heater 12, the air-conditioning core 14, the intermediate communication pipe 17, the second pipe 19, the second heat exchanger 7, the second pipe 201, and the third pipe 20, so that the battery pack 8 is heated after the air-conditioning core 14 is heated.
The flow rate of the medium flowing back from the intermediate communication pipe 17 is controlled by adjusting the opening degree of the second three-way valve 16 to ensure that sufficient heat is distributed to the air conditioning core 14, and the heating requirement of the passenger compartment is preferentially ensured.
The temperature of the medium returned from the intermediate communication pipe 17 is higher than the temperature of the medium returned from the third pipe 20, so if the circulation amount of the medium returned from the intermediate communication pipe 17 is large, the temperature of the medium returned to the fuel heater 11 is high, and the temperature of the medium flowing out from the fuel heater 11 is also high, so that it is possible to ensure sufficient heat supply to the air-conditioning core 14.
Mode six: the first high-pressure heater 12 is used for heating the air conditioning core 14 independently, and the mode needs to use the electric energy of the battery pack and is suitable for short-distance use.
Mode seven: the first high-pressure heater 12 heats the battery pack 8 alone, and the mode needs to use the electric energy of the battery pack, so that the battery pack is suitable for short-distance use.
In summary, the electric vehicle thermal management system provided by the invention forms a new system by arranging the fuel heater, adopts the high-pressure heater to heat when the short mileage is required, adopts the fuel heater to heat when the long mileage is required, and can also adopt the combination of the high-pressure heater and the fuel heater to heat at the same time, thereby improving the endurance mileage of the electric vehicle under the condition of not increasing the power consumption.
Preferably, the thermal management system of the electric vehicle comprises: the fuel heater 11 separately heats the air conditioner core 14; the fuel heater 11 and the first high-pressure heater 12 jointly heat the air conditioner core 14; the fuel heater 11 is solely heating the battery pack 8; the fuel heater 11 and the first high-pressure heater 12 jointly heat the battery pack 8; the fuel heater 11 and the first high pressure heater 12 combine to simultaneously heat the air conditioning core 14 and the battery pack 8.
Selecting the mode in which the oil heater 11 operates as the preferred mode can save electric power. The conversion of different modes can be realized to satisfy different demands, the power consumption of the battery pack can be saved, and the cruising ability can be improved.
Preferably, as shown in fig. 1, a second high pressure heater 10 is provided on the second pipe 201. The second high-pressure heater 10 can heat the battery pack 8, when the fuel heater 11 simultaneously heats the air-conditioning core 14 and the battery pack 8, the air-conditioning core 14 is heated preferentially, and when the heat obtained by the battery pack 8 from the fuel heater 11 cannot meet the requirement, the second high-pressure heater 10 can be used for heating as compensation.
Preferably, the thermal management system of the electric vehicle comprises: the second high pressure heater 10 heats the battery pack 8 alone; the fuel heater 11 and the second high-pressure heater 10 jointly heat the battery pack 8; the fuel heater 11, the first high-pressure heater 12, and the second high-pressure heater 10 jointly heat the battery pack 8. So set up, can realize the conversion of different modes to satisfy the heating demand to battery package 8, improve battery package 8's discharge capacity.
Preferably, as shown in fig. 1, a first pump 9 is provided on the second pipeline 201, and a second pump 13 is provided on the third pipeline 301. A first pump 9 powers the medium circulation in the second line 201, which is used to pump the medium from the battery pack 8 to the second heat exchanger 7. The second pump 13 powers the medium circulation in the third line 301, which serves to pump the medium from the first high-pressure heater 12 to the air conditioning core 14.
Preferably, as shown in fig. 1, the refrigeration system 100 includes an external heat exchanger 1, a compressor 2, an evaporator 3, and an expansion valve 4, which are sequentially installed on a first pipe 101. The first heat exchanger 5 is connected in parallel with the evaporator 3 on the first line 101. The external heat exchanger 1 corresponds to a condenser, and the first heat exchanger 5 corresponds to an evaporator 3, and is mainly used for cooling the battery pack 8.
After the medium in the first pipeline 101 is cooled, the medium enters the first heat exchanger 5 to exchange heat with the medium in the second heat exchanger 7, so that cold is transferred to the medium in the second pipeline 201, and the battery pack 8 is cooled.
Preferably, the thermal management system of the electric vehicle comprises: in the cooling mode of the battery pack 8, the refrigeration system 100 can prevent the battery pack 8 from being dangerous due to overhigh temperature by cooling the battery pack 8.
Preferably, as shown in fig. 1, an automatic control valve 6 is disposed on the pipeline 102 connected to the first heat exchanger 5 for automatically controlling the opening and closing of the first heat exchanger 5. The automatic control valve 6 may also be an expansion valve.
Preferably, the first high-pressure heater 12 and the second high-pressure heater 10 are PTC heaters, which have low thermal resistance and high heat exchange efficiency.
The embodiment of the invention provides an electric automobile, which comprises the electric automobile heat management system in any one of the embodiments. When the short mileage is required, the high-pressure heater is used for heating, when the long mileage is required, the fuel oil heater is used for heating, and the high-pressure heater and the fuel oil heater can be used for combined heating at the same time, so that the endurance mileage of the electric automobile is improved under the condition that the power consumption is not increased.
In summary, the electric vehicle heat management system and the electric vehicle provided by the invention form a new system by arranging the fuel oil heater, the high-pressure heater is adopted to heat when the short mileage is required, the fuel oil heater is adopted to heat when the long mileage is required, the high-pressure heater and the fuel oil heater can be adopted to be combined to heat at the same time, and the endurance mileage of the electric vehicle is improved under the condition of not increasing the power consumption.
According to the needs, the above technical schemes can be combined to achieve the best technical effect.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims (10)

1. The electric automobile heat management system is characterized by comprising a refrigerating system (100), a battery pack system (200), an air conditioning system (300) and a fuel heater (11);
the refrigeration system (100) comprises a first heat exchanger (5);
the battery pack system (200) comprises a battery pack (8) and a second heat exchanger (7) which are sequentially arranged on a second pipeline (201);
the second heat exchanger (7) is connected with the first heat exchanger (5);
the air conditioning system (300) comprises a first high-pressure heater (12) and an air conditioning core body (14) which are sequentially arranged on a third pipeline (301);
the medium outlet (112) of the fuel oil heater (11) is connected with the medium inlet (302) of the third pipeline (301) through a first pipeline (18), the first pipeline (18) is connected with the second heat exchanger (7) through a second pipeline (19), and a third pipeline (20) is connected between the medium inlet (111) of the fuel oil heater (11) and the second heat exchanger (7);
the medium outlet (303) of the third line (301) is connected to the second line (19) via a first three-way valve (15);
an intermediate communication pipeline (17) is connected between the third pipeline (20) and the second pipeline (19), and one end of the intermediate communication pipeline (17) is connected with the second pipeline (19) through a second three-way valve (16).
2. The electric vehicle thermal management system of claim 1, comprising:
the fuel oil heater (11) independently heats the air conditioner core body (14);
the fuel heater (11) and the first high-pressure heater (12) jointly heat the air-conditioning core (14);
the fuel heater (11) separately heats the battery pack (8);
the fuel heater (11) and the first high-pressure heater (12) jointly heat the battery pack (8);
the fuel oil heater (11) and the first high-pressure heater (12) jointly heat the air conditioning core (14) and the battery pack (8) simultaneously.
3. The electric vehicle thermal management system according to claim 1 or 2, characterized in that a second high-pressure heater (10) is provided on the second pipeline (201).
4. The electric vehicle thermal management system of claim 3, comprising:
the second high-pressure heater (10) separately heats the battery pack (8);
the fuel heater (11) and the second high-pressure heater (10) jointly heat the battery pack (8);
the fuel heater (11), the first high-pressure heater (12) and the second high-pressure heater (10) jointly heat the battery pack (8).
5. The thermal management system of an electric vehicle according to claim 1 or 2, characterized in that a first pump (9) is arranged on the second pipeline (201) and a second pump (13) is arranged on the third pipeline (301).
6. The electric vehicle thermal management system of claim 1 or 2,
the refrigeration system (100) comprises an external heat exchanger (1), a compressor (2), an evaporator (3) and an expansion valve (4) which are sequentially arranged on a first pipeline (101);
the first heat exchanger (5) and the evaporator (3) are connected in parallel on the first pipeline (101).
7. The electric vehicle thermal management system of claim 6, comprising:
the refrigeration system (100) cools the battery pack (8).
8. The electric vehicle heat management system according to claim 6, characterized in that an automatic control valve (6) is arranged on the pipeline (102) connected with the first heat exchanger (5).
9. The electric vehicle thermal management system of claim 3, wherein the first high-pressure heater (12) and the second high-pressure heater (10) are each PTC heaters.
10. An electric vehicle comprising the electric vehicle thermal management system of any one of claims 1-9.
CN202010099442.1A 2020-02-18 2020-02-18 Electric automobile heat management system and electric automobile Pending CN111186340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010099442.1A CN111186340A (en) 2020-02-18 2020-02-18 Electric automobile heat management system and electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010099442.1A CN111186340A (en) 2020-02-18 2020-02-18 Electric automobile heat management system and electric automobile

Publications (1)

Publication Number Publication Date
CN111186340A true CN111186340A (en) 2020-05-22

Family

ID=70687487

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010099442.1A Pending CN111186340A (en) 2020-02-18 2020-02-18 Electric automobile heat management system and electric automobile

Country Status (1)

Country Link
CN (1) CN111186340A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112092577A (en) * 2020-09-23 2020-12-18 中国第一汽车股份有限公司 Pure electric vehicle heat exchange system and pure electric vehicle heat exchange control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112092577A (en) * 2020-09-23 2020-12-18 中国第一汽车股份有限公司 Pure electric vehicle heat exchange system and pure electric vehicle heat exchange control method

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