CN113844233A - Whole vehicle thermal management system based on fuel oil heater - Google Patents

Whole vehicle thermal management system based on fuel oil heater Download PDF

Info

Publication number
CN113844233A
CN113844233A CN202111195708.3A CN202111195708A CN113844233A CN 113844233 A CN113844233 A CN 113844233A CN 202111195708 A CN202111195708 A CN 202111195708A CN 113844233 A CN113844233 A CN 113844233A
Authority
CN
China
Prior art keywords
battery
cavity
loop
refrigerant
coolant
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
CN202111195708.3A
Other languages
Chinese (zh)
Inventor
陈昌瑞
邵博军
李�杰
王海萍
董建建
罗世成
杨士钦
姚学森
孙强
王家军
何浪
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.)
Anhui Jianghuai Automobile Group Corp
Original Assignee
Anhui Jianghuai Automobile Group Corp
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 Anhui Jianghuai Automobile Group Corp filed Critical Anhui Jianghuai Automobile Group Corp
Priority to CN202111195708.3A priority Critical patent/CN113844233A/en
Publication of CN113844233A publication Critical patent/CN113844233A/en
Pending legal-status Critical Current

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
    • B60H1/00357—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
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
    • 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
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a fuel heater-based vehicle thermal management system, which comprises a refrigerant loop, a battery coolant loop and an air conditioner coolant loop, wherein the refrigerant loop, the battery coolant loop and the air conditioner coolant loop are connected through a heat exchanger. The battery cooling liquid loop comprises a power battery and a battery cooling water pump, and the power battery, the battery cooling water pump and the heat exchanger are sequentially connected. The air-conditioning coolant loop comprises an air-conditioning heating water pump, a fuel heater, an electronic three-way valve and an air-conditioning heater which are sequentially connected, wherein the other port of the electronic three-way valve is connected with a heat exchanger, and the heat exchanger is also connected with the air-conditioning heating water pump to form a loop so that the air-conditioning coolant loop and the battery coolant loop realize heat exchange. Aiming at lower environment temperature (less than-20 ℃), the heating effect of the whole vehicle is improved obviously, the heat-saving comfort in cold seasons is improved, the energy of a power battery is not consumed, and the endurance mileage is increased; in addition, the heating effect of the battery pack is obviously improved, and the energy of the power battery is not consumed.

Description

Whole vehicle thermal management system based on fuel oil heater
Technical Field
The invention relates to the technical field of electric automobile heat management, in particular to a finished automobile heat management system based on a fuel oil heater.
Background
At present, the whole thermal management of the electric automobile mainly comprises passenger compartment thermal management and power battery thermal management, the electric automobile generally adopts a high-voltage electric heater to assist a power battery or a passenger compartment to heat or uses a heat pump to extract heat in air to heat due to no engine waste heat, the heating efficiency of the electric heater is low, the endurance mileage of the electric automobile is seriously influenced, and the heat pump heating can only be carried out at the temperature of more than-20 ℃.
An electric heating auxiliary air conditioning system is generally adopted for heating the passenger compartment, and a positive temperature coefficient thermistor (PTC for short) heater is additionally arranged for auxiliary heating. The PTC heater has the defects that the theoretical upper limit of the efficiency of converting electricity into heat of the PTC heater is 1.0, the actual conversion rate COP is less than 0.9, the heating efficiency is low, and the influence on the endurance mileage of an automobile is large. The battery compartment is heated by a water heater (WPTC for short) which is characterized in that battery cooling liquid is heated by an additional high-voltage thermistor, and the defects of low heating efficiency at low temperature, large power consumption and great influence on the driving mileage of the whole vehicle are overcome.
Therefore, how to provide a complete vehicle heat management system which aims at lower ambient temperature (less than-20 ℃), obviously improves the complete vehicle heating effect, does not consume the energy of a power battery, and is beneficial to increasing the endurance mileage becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a fuel oil heater-based whole vehicle heat management system, aiming at lower ambient temperature (less than-20 ℃), the heating effect of the whole vehicle is obviously improved, the heat-saving comfort in cold seasons is improved, the energy of a power battery is not consumed, and the increase of the endurance mileage is facilitated; in addition, the heating effect of the battery pack is obviously improved, and the energy of the power battery is not consumed.
According to one aspect of the invention, the invention provides a fuel heater-based vehicle thermal management system, which comprises a refrigerant loop, a battery coolant loop and an air conditioner coolant loop, wherein the refrigerant loop, the battery coolant loop and the air conditioner coolant loop are connected through a heat exchanger;
the battery cooling liquid loop comprises a power battery and a battery cooling water pump, and the power battery, the battery cooling water pump and the heat exchanger are sequentially connected;
the air-conditioning coolant loop comprises an air-conditioning heating water pump, a fuel heater, an electronic three-way valve and an air-conditioning heater which are sequentially connected, wherein the other port of the electronic three-way valve is connected with the heat exchanger, and the heat exchanger is also connected with the air-conditioning heating water pump to form a loop so as to realize heat exchange between the air-conditioning coolant loop and the battery coolant loop;
the refrigerant circuit comprises an electric compressor, a condenser, a first solenoid valve, a first expansion valve and an air conditioner host evaporator which are sequentially connected, a refrigerant branch is further arranged behind the condenser and comprises a second solenoid valve and a second expansion valve, the second expansion valve is connected with the heat exchanger, and the heat exchanger is further connected with the electric compressor and forms a loop.
Optionally, according to the fuel heater-based vehicle thermal management system of the invention, the heat exchanger includes a housing, the interior of the housing is longitudinally divided into a first cavity and a second cavity, a first partition plate is disposed in the middle of the first cavity, a through hole is disposed on the first partition plate, a battery coolant inlet is disposed above the first cavity, a battery coolant outlet is disposed below the first cavity, the battery coolant inlet and the battery coolant outlet are communicated through the through hole, and the battery coolant inlet and the battery coolant outlet are respectively connected with the battery coolant pump and the power battery;
a second partition plate is arranged in the middle of the second cavity and divides the second cavity into an upper cavity and a lower cavity, a refrigerant inlet and a refrigerant outlet are respectively arranged at the top of the upper cavity, and the refrigerant inlet and the refrigerant outlet are respectively connected with a second expansion valve and the electric compressor; the bottom of the lower cavity is provided with a hot water inlet and a hot water outlet respectively, and the hot water inlet and the hot water outlet are connected with the electronic three-way valve and the air conditioner heating water pump respectively.
Optionally, according to the fuel oil heater-based vehicle thermal management system disclosed by the invention, the first cavity is provided with a plurality of stacked plate heat exchangers, the battery coolant inlet and the battery coolant outlet are arranged at the right end of the first cavity, the through hole is arranged at the left end of the first partition plate, and the plate heat exchangers are distributed between the through hole and the battery coolant inlet as well as between the through hole and the battery coolant outlet.
Optionally, according to the fuel heater-based vehicle thermal management system of the invention, the upper cavity and the lower cavity are both provided with a plurality of stacked plate heat exchangers, the refrigerant outlet and the refrigerant inlet are respectively arranged at the left end and the right end of the upper cavity, the hot water inlet and the hot water outlet are respectively arranged at the left end and the right end of the lower cavity, and the plate heat exchangers are distributed between the hot water inlet and the hot water outlet and between the refrigerant outlet and the refrigerant inlet.
Optionally, according to the overall fuel heater thermal management system of the invention, the refrigerant inlet extends to the bottom of the upper cavity, and a third partition plate is further disposed in the middle of the upper cavity and located at a passage of the refrigerant outlet.
Optionally, according to the overall thermal management system based on the fuel oil heater, a first expansion kettle is further arranged between the battery cooling water pump and the power battery.
Optionally, according to the overall thermal management system based on the fuel oil heater, a second expansion kettle is further arranged in front of the air-conditioning heating water pump, and the hot water outlet is connected with the second expansion kettle.
The fuel oil heater-based vehicle thermal management system disclosed by the invention has the advantages that the heating effect of the vehicle is obviously improved aiming at lower ambient temperature (less than-20 ℃), the heat-saving comfort in cold seasons is improved, the energy of a power battery is not consumed, and the increase of the endurance mileage is facilitated; in addition, the heating effect of the battery pack is obviously improved, and the energy of the power battery is not consumed. When the passenger compartment is heated independently, the fuel oil heater is used for heating the air conditioner cooling liquid to realize air conditioner heating; when the power battery is heated independently, the fuel oil heater heats the air-conditioning coolant, the coolant flows through the heat exchanger to exchange heat with the battery coolant, and the battery pack is heated; when the passenger compartment and the battery compartment are heated together, the fuel oil heater heats the air conditioner coolant, the heated coolant is distributed to the air conditioner heater through the electronic three-way valve to heat cold air in the vehicle, and the other part of the heated coolant enters the heat exchanger to exchange heat with the battery coolant to heat the power battery.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a working schematic diagram of a finished automobile thermal management system based on a fuel oil heater disclosed by the invention;
FIG. 2 is a schematic structural diagram of a heat exchanger according to the present disclosure;
FIG. 3 is a schematic structural diagram of a first chamber disclosed in the present invention;
fig. 4 is a schematic structural diagram of a second cavity disclosed in the present invention.
Description of reference numerals: 1-a heat exchanger; 101-a refrigerant inlet; 102-a refrigerant outlet; 103-battery coolant inlet; 104-battery coolant outlet; 105-hot water inlet; 106-hot water outlet; 107-upper chamber; 108-a lower cavity; 109-plate heat exchanger; 110-a first separator; 111-a first cavity; 112-a through hole; 113-a second separator; 114-a third separator;
2-battery cooling water pump; 3-a first expansion kettle; 4-a power battery; 5-air conditioner host evaporator; 6-air conditioner heater; 7-an air conditioner host; 8-electronic three-way valve; 9-a first expansion valve; 10-a second expansion valve; 11-a first solenoid valve; 12-a second solenoid valve; 13-a fuel oil heater; 14-air conditioner heating water pump; 15-a second expansion kettle; 16-a condenser; 17-electric compressor.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to the drawings shown in fig. 1 to 4, the invention provides a complete vehicle thermal management system based on a fuel oil heater, which comprises a refrigerant loop, a battery coolant loop and an air conditioner coolant loop, wherein the refrigerant loop, the battery coolant loop and the air conditioner coolant loop are connected through a heat exchanger 1; the battery cooling liquid loop comprises a power battery 4 and a battery cooling water pump 2, and the power battery 4, the battery cooling water pump 2 and the heat exchanger 1 are sequentially connected.
The air-conditioning coolant loop comprises an air-conditioning heating water pump 14, a fuel heater 13, an electronic three-way valve 8 and an air-conditioning heater 6 which are sequentially connected, the other port of the electronic three-way valve 8 is connected with the heat exchanger 1, and the heat exchanger 1 is also connected with the air-conditioning heating water pump 14 to form a loop, so that the air-conditioning coolant loop and the battery coolant loop realize heat exchange.
The refrigerant loop comprises an electric compressor 17, a condenser 16, a first electromagnetic valve 11, a first expansion valve 9 and an air conditioner host evaporator 5 which are connected in sequence, a refrigerant branch is further arranged behind the condenser 16 and comprises a second electromagnetic valve 12 and a second expansion valve 10, the second expansion valve 10 is connected with the heat exchanger 1, and the heat exchanger 1 is further connected with the electric compressor 17 to form a loop. The air conditioner main evaporator 5 and the air conditioner heater 6 form an integral air conditioner main 7.
When the method is implemented, aiming at the low ambient temperature (less than-20 ℃), the heating effect of the whole vehicle is improved obviously, the heat-saving comfort in cold seasons is improved, 4 energy of a power battery is not consumed, and the continuation of journey mileage is increased; in addition, the heating effect of the battery pack is obviously improved, and the energy of the power battery 4 is not consumed. When the temperature is higher, the heater is not needed to heat the air conditioner, the air conditioner cooling loop can be temporarily closed, the temperature of the air conditioner is reduced through the refrigerant loop, and the battery cooling loop is subjected to temperature reduction treatment. The fuel oil heater 13 mainly works on the principle that a small oil tank (10L) is pumped by an oil pump, and cooling liquid from the outside is heated in the heater through electric spark ignition combustion, so that the heating function is realized.
When the passenger compartment needs to be heated independently, the fuel heater 13 is used for heating air-conditioning coolant to realize air-conditioning heating, and the coolant circulates into the fuel heater 13 → the electronic three-way valve 8 → the air-conditioning heater 6 → the air-conditioning heating water pump 14 → the fuel heater 13. The air-conditioning heating water pump 14 is operated to heat the coolant flowing through the fuel heater 13, then enters the air-conditioning heater 6 through the electronic three-way valve 8 to heat the air in the passenger compartment, and finally returns to the heater.
When the power battery 4 needs to be heated independently, the fuel oil heater 13 heats air conditioner coolant, the coolant flows through the heat exchanger 1 to exchange heat with the battery coolant, and a battery pack is heated; the water circulation at the side of the fuel heater 13 is as follows: fuel heater 13 → electronic three-way valve 8 → heat exchanger 1 → air conditioner heating water pump 14 → fuel heater 13, the battery side water cycle is: battery cooling water pump 2 → heat exchanger 1 → power battery 4.
When the passenger compartment and the battery compartment are required to be heated together, the fuel oil heater 13 heats the air-conditioning coolant, the heated coolant is distributed to the air-conditioning heater 6 through the electronic three-way valve 8 to heat cold air in the vehicle, and the other part of the heated coolant enters the heat exchanger 1 to exchange heat with the battery coolant to heat the power battery 4.
Further, the heat exchanger 1 includes a housing, the interior of the housing is divided into a first cavity 111 and a second cavity along the longitudinal direction, a first partition plate 110 is disposed in the middle of the first cavity 111, a through hole 112 is disposed on the first partition plate 110, a battery coolant inlet 103 is disposed above the first cavity 111, a battery coolant outlet 104 is disposed below the first cavity, the battery coolant inlet 103 and the battery coolant outlet 104 are communicated through the through hole 112, and the battery coolant inlet 103 and the battery coolant outlet 104 are respectively connected with the battery cooling water pump 2 and the power battery 4;
a second partition plate 113 is arranged in the middle of the second cavity, the second partition plate 113 divides the second cavity into an upper cavity 107 and a lower cavity 108, the top of the upper cavity 107 is respectively provided with a refrigerant inlet 101 and a refrigerant outlet 102, and the refrigerant inlet 101 and the refrigerant outlet 102 are respectively connected with the second expansion valve 10 and the electric compressor 17; the bottom of the lower cavity 108 is respectively provided with a hot water inlet 105 and a hot water outlet 106, and the hot water inlet 105 and the hot water outlet 106 are respectively connected with the electronic three-way valve 8 and the air-conditioning and heating water pump 14.
In implementation, the plate heat exchangers 109 of the first cavity 111 and the second cavity are in a communicated state, when hot water flows through the lower cavity 108, the plate heat exchanger 109 in the battery coolant loop below the first partition plate 110 can realize heat exchange between the battery coolant loop and the air conditioner coolant loop, and the flow directions of the two are opposite, as shown in fig. 3 and 4, in fig. 3, an arrow is the flow direction of the battery coolant, and in fig. 4, an arrow in the lower cavity 108 is the flow direction of the air conditioner coolant, so that the heat exchange between the two is more efficient, and the power battery 4 is guaranteed to be heated; when the temperature is high and the battery needs to be cooled, the refrigerant circuit in the upper cavity 107 and the plate heat exchanger 109 in the battery coolant circuit above the first partition plate 110 can exchange heat therebetween, and the principle is the same as the heating.
Further, the first cavity 111 is provided with a plurality of stacked plate heat exchangers 109, the battery coolant inlet 103 and the battery coolant outlet 104 are provided at a right end of the first cavity 111, the through hole 112 is provided at a left end of the first separator 110, and the plate heat exchangers 109 are distributed between the through hole 112 and the battery coolant inlet 103 and between the through hole 112 and the battery coolant outlet 104. The plate heat exchanger 109 is guaranteed to be a necessary part of a battery cooling liquid loop, and therefore heat exchange efficiency is improved.
Still further, a plurality of stacked plate heat exchangers 109 are respectively arranged in the upper cavity 107 and the lower cavity 108, the refrigerant outlet 102 and the refrigerant inlet 101 are respectively arranged at the left end and the right end of the upper cavity 107, the hot water inlet 105 and the hot water outlet 106 are respectively arranged at the left end and the right end of the lower cavity 108, and the plate heat exchangers 109 are distributed between the hot water inlet 105 and the hot water outlet 106 and between the refrigerant outlet 102 and the refrigerant inlet 101. The principle is the same as that of the battery coolant circuit described above, and the description thereof is omitted.
Further, as shown in fig. 4, the refrigerant inlet 101 extends to the bottom of the upper chamber 107, and a third partition 114 is further disposed at an intermediate position of the upper chamber 107, and the third partition 114 is located at a passage of the refrigerant outlet 102. When the cooling device is implemented, the circulation length of the refrigerant loop can be increased, and the cooling device is beneficial to efficiently cooling the battery cooling liquid.
Further, still be equipped with first expansion tank 3 between battery cooling water pump 2 and the power battery 4, the coolant volume in the battery coolant system can be guaranteed to first expansion tank 3.
Still further, the front of air conditioner heat pump 14 still is equipped with second expansion kettle 15, and hot water outlet 106 is connected with second expansion kettle 15, and the coolant volume in the air conditioner coolant system can be guaranteed to second expansion kettle 15.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (7)

1. The fuel heater-based vehicle thermal management system is characterized by comprising a refrigerant loop, a battery coolant loop and an air conditioner coolant loop, wherein the refrigerant loop, the battery coolant loop and the air conditioner coolant loop are connected through a heat exchanger;
the battery cooling liquid loop comprises a power battery and a battery cooling water pump, and the power battery, the battery cooling water pump and the heat exchanger are sequentially connected;
the air-conditioning coolant loop comprises an air-conditioning heating water pump, a fuel heater, an electronic three-way valve and an air-conditioning heater which are sequentially connected, wherein the other port of the electronic three-way valve is connected with the heat exchanger, and the heat exchanger is also connected with the air-conditioning heating water pump to form a loop so as to realize heat exchange between the air-conditioning coolant loop and the battery coolant loop;
the refrigerant circuit comprises an electric compressor, a condenser, a first solenoid valve, a first expansion valve and an air conditioner host evaporator which are sequentially connected, a refrigerant branch is further arranged behind the condenser and comprises a second solenoid valve and a second expansion valve, the second expansion valve is connected with the heat exchanger, and the heat exchanger is further connected with the electric compressor and forms a loop.
2. The fuel heater vehicle-based thermal management system according to claim 1, wherein the heat exchanger comprises a housing, the interior of the housing is longitudinally divided into a first cavity and a second cavity, a first partition plate is arranged in the middle of the first cavity, a through hole is formed in the first partition plate, a battery coolant inlet is formed above the first cavity, a battery coolant outlet is formed below the first cavity, the battery coolant inlet and the battery coolant outlet are communicated through the through hole, and the battery coolant inlet and the battery coolant outlet are respectively connected with the battery coolant pump and the power battery;
a second partition plate is arranged in the middle of the second cavity and divides the second cavity into an upper cavity and a lower cavity, a refrigerant inlet and a refrigerant outlet are respectively arranged at the top of the upper cavity, and the refrigerant inlet and the refrigerant outlet are respectively connected with a second expansion valve and the electric compressor; the bottom of the lower cavity is provided with a hot water inlet and a hot water outlet respectively, and the hot water inlet and the hot water outlet are connected with the electronic three-way valve and the air conditioner heating water pump respectively.
3. The fuel heater vehicle-based thermal management system of claim 2, wherein the first cavity is provided with a plurality of stacked plate heat exchangers, the battery coolant inlet and the battery coolant outlet are arranged at the right end of the first cavity, the through hole is arranged at the left end of the first partition plate, and the plate heat exchangers are distributed between the through hole and the battery coolant inlet and between the through hole and the battery coolant outlet.
4. The fuel oil heater based vehicle thermal management system according to claim 2, wherein the upper cavity and the lower cavity are both provided with plate heat exchangers stacked in multiple layers, the refrigerant outlet and the refrigerant inlet are respectively arranged at the left end and the right end of the upper cavity, the hot water inlet and the hot water outlet are respectively arranged at the left end and the right end of the lower cavity, and the plate heat exchangers are distributed between the hot water inlet and the hot water outlet and between the refrigerant outlet and the refrigerant inlet.
5. The fuel heater vehicle-based thermal management system of claim 4, wherein the refrigerant inlet extends to the bottom of the upper cavity, a third partition plate is further arranged in the middle of the upper cavity, and the third partition plate is located at a channel of the refrigerant outlet.
6. The fuel heater based vehicle thermal management system of claim 2, wherein a first expansion kettle is further arranged between the battery cooling water pump and the power battery.
7. The fuel heater based vehicle thermal management system according to claim 2, wherein a second expansion kettle is further arranged in front of the air conditioning heating water pump, and the hot water outlet is connected with the second expansion kettle.
CN202111195708.3A 2021-10-14 2021-10-14 Whole vehicle thermal management system based on fuel oil heater Pending CN113844233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111195708.3A CN113844233A (en) 2021-10-14 2021-10-14 Whole vehicle thermal management system based on fuel oil heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111195708.3A CN113844233A (en) 2021-10-14 2021-10-14 Whole vehicle thermal management system based on fuel oil heater

Publications (1)

Publication Number Publication Date
CN113844233A true CN113844233A (en) 2021-12-28

Family

ID=78978207

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111195708.3A Pending CN113844233A (en) 2021-10-14 2021-10-14 Whole vehicle thermal management system based on fuel oil heater

Country Status (1)

Country Link
CN (1) CN113844233A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114919376A (en) * 2022-06-27 2022-08-19 安徽江淮松芝空调有限公司 Battery heat management device of hybrid vehicle type
CN115230435A (en) * 2022-09-22 2022-10-25 江苏中关村科技产业园节能环保研究有限公司 Energy flow management machine for electric automobile and working method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723065A (en) * 1984-03-19 1988-02-02 Howard E. Meyer Electric automotive fuel heating system
CN200962005Y (en) * 2006-09-22 2007-10-17 王忠合 Integrated array heat exchanger
CN103765140A (en) * 2011-04-01 2014-04-30 英格索尔兰德公司 Heat exchanger for a refrigerated air dryer
CN110001352A (en) * 2019-04-30 2019-07-12 威马智慧出行科技（上海）有限公司 New-energy automobile and its heat management device
CN110039973A (en) * 2019-05-21 2019-07-23 威马智慧出行科技（上海）有限公司 A kind of heat management system of electric vehicle
CN211739967U (en) * 2020-02-19 2020-10-23 上海加冷松芝汽车空调股份有限公司 Plate type combined heat exchanger
CN112248757A (en) * 2020-11-13 2021-01-22 柳州易舟汽车空调有限公司 New energy automobile electric heat pump air conditioner heat recovery and defrosting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723065A (en) * 1984-03-19 1988-02-02 Howard E. Meyer Electric automotive fuel heating system
CN200962005Y (en) * 2006-09-22 2007-10-17 王忠合 Integrated array heat exchanger
CN103765140A (en) * 2011-04-01 2014-04-30 英格索尔兰德公司 Heat exchanger for a refrigerated air dryer
CN110001352A (en) * 2019-04-30 2019-07-12 威马智慧出行科技（上海）有限公司 New-energy automobile and its heat management device
CN110039973A (en) * 2019-05-21 2019-07-23 威马智慧出行科技（上海）有限公司 A kind of heat management system of electric vehicle
CN211739967U (en) * 2020-02-19 2020-10-23 上海加冷松芝汽车空调股份有限公司 Plate type combined heat exchanger
CN112248757A (en) * 2020-11-13 2021-01-22 柳州易舟汽车空调有限公司 New energy automobile electric heat pump air conditioner heat recovery and defrosting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114919376A (en) * 2022-06-27 2022-08-19 安徽江淮松芝空调有限公司 Battery heat management device of hybrid vehicle type
CN115230435A (en) * 2022-09-22 2022-10-25 江苏中关村科技产业园节能环保研究有限公司 Energy flow management machine for electric automobile and working method thereof

Similar Documents

Publication Publication Date Title
CN207045140U (en) A kind of intelligent multiloop thermal management system of electric automobile
CN110356195A (en) A kind of electrombile thermal management system and method
CN107521307A (en) Automotive thermal tube manages system and the automobile with the system
CN113844233A (en) Whole vehicle thermal management system based on fuel oil heater
CN105172522A (en) Thermal management system of hybrid vehicle
CN111347934A (en) Thermal management system and method for fuel cell vehicle
CN213472702U (en) Automobile heat management system and electric automobile thereof
CN116829390A (en) Thermal management system and electric automobile with same
CN116830361A (en) Thermal management system and electric automobile with same
CN214112214U (en) Vehicle thermal management system and electric automobile
CN113432340A (en) Multi-heat-source heat pump type electric automobile heat management system
CN210425664U (en) Waste heat recovery system using throttling sleeve
CN111446521A (en) Heating system for improving adaptability of pure electric vehicle in cold region
CN111422026A (en) Increase form electric motor car cooling system waterway structure
CN216048481U (en) Multi-heat-source heat pump type electric automobile heat management system
CN216002118U (en) Thermal management system of extended-range hybrid vehicle and vehicle
CN207617456U (en) Air conditioning system for automotive vehicles
CN115716395A (en) Thermal management system and thermal management method for electric vehicle and electric vehicle
CN113650474B (en) Whole-vehicle thermal management system and control method of HEV hybrid electric vehicle
CN110118453A (en) Integrated heat exchanger and electric car with it
CN216033622U (en) Integrated thermal management system and vehicle
CN211416890U (en) Heat pump air conditioner and battery heat management device
CN114583208A (en) Fuel cell thermal management system
CN218228565U (en) Vehicle thermal management system and vehicle with same
CN220500443U (en) Pile thermal management system, fuel cell thermal management 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