CN119159957B - Thermal management system based on twelve-way valve - Google Patents
Thermal management system based on twelve-way valveInfo
- Publication number
- CN119159957B CN119159957B CN202411593049.2A CN202411593049A CN119159957B CN 119159957 B CN119159957 B CN 119159957B CN 202411593049 A CN202411593049 A CN 202411593049A CN 119159957 B CN119159957 B CN 119159957B
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- way valve
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- 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
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- 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
-
- 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
- B60H1/00321—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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
-
- 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
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- 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
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
-
- 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
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/425—Temperature
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a heat management system based on a twelve-way valve, which belongs to the technical field of heat management systems and comprises a battery branch, a heat dissipation branch, an air conditioning loop, a heating branch, a straight-through branch and an electric drive branch which are respectively communicated by the aid of the ten-way valve. The inside of the ten-way valve is provided with a specific communication mode, so that different branches are communicated in sequence to form a closed loop. In the use process, only the valve core of the ten-way valve is required to be rotated, and the communication mode of each end of the ten-way valve is regulated so as to regulate the communication relation of each branch, and finally, the multiple functions of the thermal management system are realized. In this way, the number of water valves can be reduced, so that the cost for preparing a plurality of water valves is reduced, and the weight of the whole system is reduced. The switching state can be realized by only rotating the ten two-way valve, so that the operation complexity is reduced.
Description
Technical Field
The invention relates to the technical field of thermal management systems, in particular to a thermal management system based on a ten-two-way valve.
Background
The energy consumption of the electric automobile directly affects the endurance of the automobile. The whole vehicle heat management system has great influence on the whole vehicle energy consumption, such as passenger cabin heating and power battery heating at low temperature, consumes more power battery electric quantity, and reduces the vehicle endurance.
In order to reduce the energy consumption of the thermal management system, an integrated thermal management system with a heat pump system is mostly adopted in the current electric vehicle. Compared with the traditional passenger cabin electric heating scheme, the heat pump system can reduce the energy consumption of passenger cabin heating. The integrated scheme is to integrate and design an electric drive cooling system, a power battery temperature control system (comprising a heating system and a cooling system) and an air conditioning system (comprising a refrigerating and heating system) of the whole car, and can connect the systems together so as to realize the flow of heat among the systems. Such as recovering heat generated during operation of the electric drive system (drive motor, motor controller) for passenger compartment heating, and power battery pack heating. The systems are typically connected by a water-cooled system, with heat transfer therebetween being achieved by the flow of a coolant liquid.
In engineering, a water valve is used to switch the flow mode of the refrigerant liquid. The current system has the following problems:
To achieve complex water-cooled branch switching, it is often necessary to design a complex water valve system. Current systems typically include multiple water valves, and are complex, costly, and heavy.
Disclosure of Invention
In view of the above-described drawbacks or deficiencies of the prior art, it is desirable to provide a thermal management system based on a twelve-way valve.
The invention provides a heat management system based on a twelve-way valve, wherein refrigerant liquid circulates in the heat management system, and the heat management system comprises:
a twelve-way valve having a first end, a second end, a third end, a fourth end, a fifth end, a sixth end, a seventh end, an eighth end, a ninth end, a tenth end, and a twelfth end;
a battery limb in communication with the first end and the eighth end;
an electric drive branch, which is communicated with the sixth end and the eleventh end;
A through branch, the through branch communicating the third end and the twelfth end;
The heating branch is communicated with the fourth end and the seventh end and is used for heating the refrigerant liquid;
the heat dissipation branch is communicated with the second end and the fifth end and is used for dissipating heat of the refrigerant liquid;
an air conditioning circuit in communication with the ninth end and the tenth end;
The tenth two-way valve is used for exchanging heat for the battery branch, the electric drive branch, the heating branch, the heat dissipation branch and the air conditioning loop through the refrigerant liquid.
According to the technical scheme provided by the invention, the twelve-way valve has a second state;
in the case of the said second state,
The first end is in communication with the second end;
the third end is communicated with the twelfth end;
The fourth end is communicated with the eleventh end;
The fifth end is communicated with the eighth end;
the sixth end is communicated with the seventh end;
the ninth end is communicated with the tenth end;
The heat dissipation branch is used for dissipating heat for the battery branch through the refrigerant liquid;
The electric drive branch is communicated with the heating branch to form a closed loop, and the heating branch stores heat for the electric drive branch through the refrigerant liquid.
According to the technical scheme provided by the invention, the twelve-way valve has a third state;
in the case of the said third state,
The first end is in communication with the twelfth end;
the second end is in communication with the eleventh end;
the third end is communicated with the tenth end;
the fourth end is communicated with the seventh end;
the fifth end is communicated with the sixth end;
the eighth end is communicated with the ninth end;
the battery branch and the straight-through branch are sequentially communicated with the air conditioning loop, and the air conditioning loop cools the battery branch through the refrigerant liquid;
The electric drive branch is communicated with the heat dissipation branch to form a closed loop, and the heat dissipation branch dissipates heat for the electric drive branch through the refrigerant liquid.
According to the technical scheme provided by the invention, the twelve-way valve has a fifth state;
in the case of the said fifth state,
The first end is communicated with the eighth end;
The second end is communicated with the fifth end;
The third end is communicated with the fourth end;
the sixth end is communicated with the seventh end;
the ninth end is communicated with the twelfth end;
The tenth end communicates with the eleventh end;
The battery branch forms a closed loop and is used for keeping the current temperature of the battery branch;
the electric drive branch, the air conditioning loop, the straight-through branch and the heating branch are communicated;
When the electric drive branch and the air conditioning loop work and the heating branch does not work, the heat of the electric drive branch is transferred to the air conditioning loop through the refrigerant liquid to heat the air conditioning loop and refrigerate the electric drive branch;
when the heating branch works, the refrigerant liquid is utilized to heat the air conditioning loop and the electric drive branch;
and when the electric drive branch works and the air conditioning loop and the heating branch do not work, the refrigerant liquid circularly flows and is used for storing heat for the electric drive branch.
According to the technical scheme provided by the invention, the twelve-way valve has a sixth state;
In the case of the said sixth state,
The first end is communicated with the fourth end;
the second end is communicated with the third end;
the fifth end is communicated with the sixth end;
the seventh end is communicated with the twelfth end;
the eighth end is in communication with the eleventh end;
the ninth end is communicated with the tenth end;
The battery branch, the heating branch, the straight-through branch, the heat dissipation branch and the electric drive branch are sequentially communicated to form a closed loop;
when the heating branch works and the heat dissipation branch does not work, the battery branch and the electric drive branch are heated simultaneously through the refrigerant liquid;
When the heating branch circuit does not work and the heat dissipation branch circuit works, heat dissipation is carried out on the battery branch circuit and the electric drive branch circuit simultaneously through the refrigerant liquid.
According to the technical scheme provided by the invention, the twelve-way valve has a seventh state;
In the case of the said seventh state,
The first end is in communication with the second end;
the third end is communicated with the twelfth end;
the fourth end is communicated with the fifth end;
the sixth end is in communication with the eleventh end;
The seventh end is communicated with the tenth end;
the eighth end is communicated with the ninth end;
the electric drive branch forms a closed loop, and the refrigerant liquid circularly flows and is used for accumulating heat for the electric drive branch;
the battery branch, the heat dissipation branch, the heating branch and the air conditioning loop are sequentially communicated to form a closed loop;
When the heat dissipation branch works, heat dissipation is carried out on the battery branch through cold medium liquid;
When the heating branch works, the battery branch is heated by cold medium;
when the air conditioning loop works, the cooling is carried out for the battery branch through the cold medium.
According to the technical scheme provided by the invention, the twelve-way valve has an eighth state;
in the case of the said eighth state,
The first end is in communication with the twelfth end;
the second end is in communication with the eleventh end;
The third end is communicated with the fourth end;
The fifth end is communicated with the tenth end;
the sixth end is communicated with the ninth end;
the seventh end is communicated with the eighth end;
The battery branch, the straight-through branch and the heating branch are sequentially communicated to form a closed loop; the heating branch is used for heating the battery branch through the refrigerant liquid;
the electric drive branch, the heat dissipation branch and the air conditioning loop are sequentially communicated to form a closed loop;
The heat dissipation branch circuit dissipates heat for the electric drive branch circuit through the refrigerant liquid;
The refrigerant liquid is used for absorbing heat in the electric drive branch and the surrounding environment, transmitting the heat of the electric drive branch to the air conditioning loop, and heating the air conditioning loop to refrigerate the electric drive branch.
According to the technical scheme provided by the invention, the twelve-way valve has a tenth state;
In the state of the tenth state of the present invention,
The first end is in communication with the second end;
the third end is communicated with the eighth end;
the fourth end is communicated with the seventh end;
the fifth end is communicated with the sixth end;
the ninth end is communicated with the twelfth end;
The tenth end communicates with the eleventh end;
The battery branch, the heat dissipation branch, the electric drive branch, the air conditioning loop and the straight-through branch are sequentially communicated to form a closed loop;
The refrigerant liquid absorbs heat in the battery branch, the electric drive branch and the surrounding environment and is transmitted to the heat dissipation branch and the air conditioning loop for heating the air conditioning loop.
According to the technical scheme provided by the invention, the twelve-way valve has an eleventh state;
in the state of the eleventh state of the present invention,
The first end is in communication with the twelfth end;
the second end is communicated with the seventh end;
the third end is communicated with the sixth end;
the fourth end is communicated with the fifth end;
the eighth end is in communication with the eleventh end;
the ninth end is communicated with the tenth end;
the refrigerant liquid circulates between the battery branch and the electric drive branch and is used for absorbing heat of the electric drive branch and transmitting the heat to the battery branch to heat the battery branch.
According to the technical scheme provided by the invention, the twelve-way valve has a twelfth state;
In the state of the twelfth state of the device,
The first end is communicated with the sixth end;
The second end is communicated with the fifth end;
The third end is communicated with the fourth end;
The seventh end is communicated with the tenth end;
the eighth end is communicated with the ninth end;
the tenth end is in communication with the twelfth end;
The battery branch, the electric drive branch, the straight-through branch, the heating branch and the air conditioning loop are sequentially communicated to form a closed loop;
when the heating branch and the air conditioning loop do not work, the refrigerant liquid absorbs the waste heat in the battery branch and is transmitted to the electric drive branch for heating the battery branch.
The invention has the beneficial effects that:
The battery branch, the heat dissipation branch, the air conditioning loop, the heating branch, the direct-connection branch and the electric drive branch are respectively communicated by using a ten-way valve. The inside of the ten-way valve is provided with a specific communication mode, so that different branches are communicated in sequence to form a closed loop. In the use process, only the valve core of the ten-way valve is required to be rotated, and the communication mode of each end of the ten-way valve is regulated so as to regulate the communication relation of each branch, and finally, the multiple functions of the thermal management system are realized. In this way, the number of water valves can be reduced, so that the cost for preparing a plurality of water valves is reduced, and the weight of the whole system is reduced. The switching state can be realized by only rotating the ten two-way valve, so that the operation complexity is reduced.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic illustration of communication modes of a thermal management system with a twelve-way valve in a first state;
FIG. 2 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a second state;
FIG. 3 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a third state;
FIG. 4 is a schematic illustration of a communication mode of the thermal management system with the twelve-way valve in a fourth state;
FIG. 5 is a schematic illustration of communication modes of the thermal management system when the twelve-way valve is in a fifth state;
FIG. 6 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a sixth state;
FIG. 7 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a seventh state;
FIG. 8 is a schematic diagram of a communication mode of the thermal management system with the twelve-way valve in an eighth state;
FIG. 9 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a ninth state;
FIG. 10 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a tenth state;
FIG. 11 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in an eleventh state;
FIG. 12 is a schematic illustration of communication modes of the thermal management system with the twelve-way valve in a twelfth state;
FIG. 13 is a schematic view of a structure of a twelve-way valve;
The solar energy power generation system comprises a battery branch, an electric drive branch, a direct branch, a heating branch, a heat dissipation branch, an air conditioning loop, a battery water jacket, a battery water pump, a battery 9, an electric drive water jacket, a 10 electric drive water pump, a 11, a PTC, a 12, a twelve-way valve, a 13, a radiator, a 14, a fan, a 15, a cooler, a 16, an evaporator, a 17, an electronic expansion valve, a 18, an internal condenser, a 19, an external condenser, a 20, an electromagnetic valve, a 21, a compressor, a 22 and a gas-liquid separator.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 13, the present invention provides a thermal management system based on a twelve-way valve, wherein a refrigerant fluid is circulated, the refrigerant fluid is water, and the thermal management system comprises:
A twelve-way valve 12, the twelve-way valve 12 having a first end 001, a second end 002, a third end 003, a fourth end 004, a fifth end 005, a sixth end 006, a seventh end 007, an eighth end 008, a ninth end 009, a tenth end 010, a tenth end 011, and a twelfth end 012;
The battery branch 1 is communicated with the first end 001 and the eighth end 008, and the battery branch 1 comprises a battery water jacket 7 and a battery water pump 8, wherein the water jacket is a shell structure covered outside the equipment and is internally provided with a chamber for circulating refrigerant liquid and can be used for exchanging heat for the battery equipment;
the electric drive branch circuit 2 is communicated with the sixth end 006 and the tenth end 011, wherein the electric drive branch circuit 2 comprises an electric drive water jacket 9 and an electric drive water pump 10, and all water pumps are used for driving the refrigerant liquid to flow;
a through branch 3, the through branch 3 communicating the third end 003 and the twelfth end 012;
the heating branch 4 is communicated with the fourth end 004 and the seventh end 007 and is used for heating the refrigerant liquid, and the heating branch 4 comprises a PTC11 and is used for heating the refrigerant liquid;
The heat dissipation branch 5 is communicated with the second end 002 and the fifth end 005 and is used for dissipating heat of the refrigerant liquid, and the heat dissipation branch 5 comprises a radiator 13;
an air conditioning circuit 6, the air conditioning circuit 6 being in communication with the ninth end 009 and the tenth end 010;
the air conditioning loop 6 comprises a first branch, a second branch and a third branch which are communicated in series;
the first branch comprises a cooler 15 and an evaporator 16 which are communicated in parallel, wherein the cooler 15 and the evaporator 16 are also respectively connected in series with an electronic expansion valve 17;
Wherein the cooler 15 communicates with the ninth end 009 and the tenth end 010, respectively;
the second branch comprises an inner condenser 18 and an outer condenser 19 which are communicated in parallel, wherein the inner condenser 18 and the outer condenser 19 are respectively communicated with an electromagnetic valve 20 in series, and the evaporator 16 and the outer condenser 19 are respectively provided with a fan 14 for radiating heat;
the third branch comprises a compressor 21 and a gas-liquid separator 22 which are communicated in series;
The twelve-way valve 12 is used for exchanging heat for the battery branch 1, the electric drive branch 2, the heating branch 4, the heat dissipation branch 5 and the air conditioning loop 6 through the refrigerant liquid.
The twelve-way valve 12 provided by the invention has twelve states, and the communication modes of the ends in each state are different. In the use process, only the valve core of the ten-way valve is required to be rotated, and the communication mode of each end of the ten-way valve is regulated so as to regulate the communication relation of each branch, and finally, the multiple functions of the thermal management system are realized. In this way, the number of water valves can be reduced, so that the cost for preparing a plurality of water valves is reduced, and the weight of the whole system is reduced. The switching state can be realized by only rotating the ten two-way valve, so that the operation complexity is reduced.
Specifically, the twelve states of the twelve-way valve 12, and the corresponding operating states, are as follows:
further, referring to FIG. 1, the twelve-way valve 12 has a first state;
in the state of the first state of the device,
The first end 001 communicates with the fourth end 004;
The second end 002 is in communication with the third end 003;
Said fifth end 005 communicates with said twelfth end 012;
the sixth end 006 communicates with the ninth end 009;
the seventh end 007 communicates with the eighth end 008;
the tenth end 010 communicates with the tenth end 011;
The battery branch 1 and the heating branch 4 form a closed loop, the electric drive branch 2 and the air conditioning loop 6 form a closed loop, and the straight-through branch 3 and the heat dissipation branch 5 form a closed loop.
In the communication mode of the first state, the operation state of each branch is not suitable, so the first state is not generally selected during operation. The switch to the first state may be made when the entire thermal management system is not operating.
Further, referring to FIG. 2, the twelve-way valve 12 has a second state;
in the case of the said second state,
The first end 001 communicates with the second end 002;
the third end 003 communicates with the twelfth end 012;
the fourth end 004 communicates with the tenth end 011;
the fifth end 005 communicates with the eighth end 008;
the sixth end 006 communicates with the seventh end 007;
the ninth end 009 communicates with the tenth end 010;
When the battery branch 1 needs to be subjected to heat dissipation and the electric drive branch 2 needs to be subjected to heat accumulation, selecting a second state:
The straight-through branch 3 independently forms a closed loop, and a cooler in the air conditioning loop 6 is not communicated with the other ends of the twelve-way valve;
The heat dissipation branch circuit 5 dissipates heat for the battery branch circuit 1 through the refrigerant liquid, and the refrigerant liquid absorbs heat of the battery branch circuit 1, transfers the heat to the radiator 13 and volatilizes to the surrounding environment when the heat dissipation branch circuit 5 is circularly moved;
in this way, the battery branch 1 and the heat dissipation branch 5 are directly communicated without passing through other branches, so that the flow resistance is small, the flow velocity of the refrigerant fluid can be improved, and the heat exchange efficiency is improved.
The electric drive branch 2 is communicated with the heating branch 4 to form a closed loop, and the heating branch 4 stores heat for the electric drive branch 2 through the refrigerant liquid.
Further, referring to FIG. 3, the twelve-way valve 12 has a third state;
in the case of the said third state,
The first end 001 communicates with the twelfth end 012;
the second end 002 communicates with the tenth end 011;
the third end 003 communicates with the tenth end 010;
the fourth end 004 communicates with the seventh end 007;
the fifth end 005 communicates with the sixth end 006;
the eighth end 008 communicates with the ninth end 009;
When the battery branch 1 needs to be refrigerated and the electric drive branch 2 is subjected to heat dissipation, a third state is selected:
The battery branch 1 and the straight-through branch 3 are sequentially communicated with the air conditioning loop 6, and the air conditioning loop 6 cools the battery branch 1 through the refrigerant liquid;
The electric drive branch 2 is communicated with the heat dissipation branch 5 to form a closed loop, and the heat dissipation branch 5 dissipates heat for the electric drive branch 2 through the coolant.
When the temperature of the battery and the temperature of the electric drive are different, the battery and the electric drive can be ensured to be respectively in the respective working temperature ranges without influencing each other.
Further, referring to fig. 4, the ten-way valve 12 has a fourth state;
in the case of the said fourth state,
The first end 001 communicates with the tenth end 010;
the second end 002 communicates with the ninth end 009;
the third end 003 communicates with the sixth end 006;
Said fourth end 004 communicates with said fifth end 005;
the seventh end 007 communicates with the eighth end 008;
The tenth end 011 communicates with the twelfth end 012;
the battery branch 1, the air conditioning circuit 6, the heat dissipation branch 5 and the heating branch 4 are sequentially communicated to form a closed circuit, and the fourth state is generally not selected because the functions are the same as those of the seventh state.
Further, referring to fig. 5, the twelve-way valve 12 has a fifth state;
in the case of the said fifth state,
The first end 001 communicates with the eighth end 008;
the second end 002 communicates with the fifth end 005;
the third end 003 communicates with the fourth end 004;
the sixth end 006 communicates with the seventh end 007;
The ninth end 009 communicates with the twelfth end 012;
the tenth end 010 communicates with the tenth end 011;
when only the temperature regulation of the electric drive branch 2 is required, a fifth state is selected:
The battery branch 1 forms a closed loop for keeping the battery branch 1 at a current temperature;
The electric drive branch 2, the air conditioning loop 6, the straight-through branch 3 and the heating branch 4 are communicated;
When the electric drive branch 2 and the air conditioning loop 6 work and the heating branch 4 does not work, the heat of the electric drive branch 2 is transferred to the air conditioning loop 6 through the refrigerant liquid to heat the air conditioning loop 6 and refrigerate the electric drive branch 2;
when the heating branch 4 works, the air conditioning loop 6 and the electric drive branch 2 are heated by the refrigerant liquid;
When the electric drive branch 2 works and the air conditioning circuit 6 and the heating branch 4 do not work, the refrigerant liquid circularly flows and is used for storing heat for the electric drive branch 2.
By the mode, the temperature of the electric drive is adjusted, and the influence on the temperature of the battery is avoided.
Further, referring to fig. 6, the twelve-way valve 12 has a sixth state;
In the case of the said sixth state,
The first end 001 communicates with the fourth end 004;
The second end 002 is in communication with the third end 003;
the fifth end 005 communicates with the sixth end 006;
the seventh end 007 communicates with the twelfth end 012;
the eighth end 008 communicates with the tenth end 011;
the ninth end 009 communicates with the tenth end 010;
when it is necessary to simultaneously radiate or heat the battery branch 1 and the electric drive branch 2, a sixth state is selected:
The battery branch 1, the heating branch 4, the straight-through branch 3, the heat dissipation branch 5 and the electric drive branch 2 are sequentially communicated to form a closed loop;
when the heating branch 4 works and the heat dissipation branch 5 does not work, the battery branch 1 and the electric drive branch 2 are heated simultaneously through the refrigerant liquid;
when the heating branch 4 does not work and the heat dissipation branch 5 works, heat dissipation is performed on the battery branch 1 and the electric drive branch 2 simultaneously through the refrigerant liquid.
Through the mode, the function of radiating or heating the battery and the electric drive simultaneously is achieved.
Further, referring to fig. 7, the twelve-way valve 12 has a seventh state;
In the case of the said seventh state,
The first end 001 communicates with the second end 002;
the third end 003 communicates with the twelfth end 012;
Said fourth end 004 communicates with said fifth end 005;
the sixth end 006 communicates with the tenth end 011;
The seventh end 007 communicates with the tenth end 010;
the eighth end 008 communicates with the ninth end 009;
when the temperature of the battery branch 1 needs to be adjusted, a seventh state is selected:
The electric drive branch 2 forms a closed loop, and the refrigerant liquid circularly flows and is used for accumulating heat for the electric drive branch 2;
the battery branch 1, the heat dissipation branch 5, the heating branch 4 and the air conditioning loop 6 are sequentially communicated to form a closed loop;
When the heat dissipation branch 5 works, heat dissipation is carried out on the battery branch 1 through cold medium;
when the heating branch 4 works, the battery branch 1 is heated by cold medium;
when the air conditioning circuit 6 works, the battery branch 1 is refrigerated and cooled by cold medium.
The PTC11 of the heating branch 4 does not operate simultaneously with the radiator 13 of the heat-radiating branch 5 and the cooler 15 of the air-conditioning circuit 6. The mode can realize the regulation of the temperature of the battery and avoid the influence on the temperature of the electric drive.
Further, referring to fig. 8, the ten-way valve 12 has an eighth state;
in the case of the said eighth state,
The first end 001 communicates with the twelfth end 012;
the second end 002 communicates with the tenth end 011;
the third end 003 communicates with the fourth end 004;
the fifth end 005 communicates with the tenth end 010;
the sixth end 006 communicates with the ninth end 009;
the seventh end 007 communicates with the eighth end 008;
when the battery branch 1 needs to be heated and the electric drive branch 2 is subjected to heat dissipation or cooling adjustment, an eighth state is selected:
The battery branch 1, the straight-through branch 3 and the heating branch 4 are sequentially communicated to form a closed loop, and the heating branch 4 heats the battery branch 1 by heating the refrigerant liquid;
The electric drive branch 2, the heat dissipation branch 5 and the air conditioning loop 6 are sequentially communicated to form a closed loop, and the heat dissipation branch 5 dissipates heat for the electric drive branch 2 through the refrigerant liquid;
The refrigerant liquid is used for absorbing heat in the electric drive branch 2 and the surrounding environment, and transmitting the heat of the electric drive branch 2 to the air conditioning loop 6, and is used for heating the air conditioning loop 6 and refrigerating the electric drive branch 2.
Specifically, when the temperature of the electric drive branch 2 is too high, the radiator 13 and the fan 14 are activated, and the cooler 15 of the air conditioning circuit 6 is activated.
At this time, after the coolant absorbs the heat of the electric drive branch 2, the temperature of the coolant rises, when the coolant passes through the heat dissipation branch 5, the heat is dissipated to the surrounding environment, and then when the coolant passes through the cooler 15 of the air conditioning loop 6, the temperature of the coolant further decreases due to the refrigerating effect of the cooler 15, and when the coolant finally circulates to the electric drive branch 2, more heat can be absorbed, and the cooling effect is improved.
The cooling mode of firstly radiating and then refrigerating ensures that the cooler 15 can use lower power to complete the cooling effect under the condition of ensuring the cooling efficiency, and the energy consumption is reduced because the power is in direct proportion to the energy consumption.
Further, referring to fig. 9, the twelve-way valve 12 has a ninth state;
in the case of the said ninth state,
The first end 001 communicates with the tenth end 010;
The second end 002 is in communication with the third end 003;
The fourth end 004 communicates with the ninth end 009;
the fifth end 005 communicates with the eighth end 008;
the sixth end 006 communicates with the seventh end 007;
The tenth end 011 communicates with the twelfth end 012;
when the refrigerant liquid needs to be filled into the pipeline of the whole thermal management system, selecting a ninth state:
the battery branch 1, the air conditioning circuit 6, the heating branch 4, the electric drive branch 2, the straight-through branch 3 and the heat dissipation branch 5 are sequentially communicated to form a closed circuit, and all branches or circuits can be filled with injected refrigerant liquid.
Further, referring to fig. 10, the ten-way valve 12 has a tenth state;
In the state of the tenth state of the present invention,
The first end 001 communicates with the second end 002;
The third end 003 is in communication with the eighth end 008;
the fourth end 004 communicates with the seventh end 007;
the fifth end 005 communicates with the sixth end 006;
The ninth end 009 communicates with the twelfth end 012;
the tenth end 010 communicates with the tenth end 011;
when the heat of the battery branch 1 and the electric drive branch 2 needs to be recovered and reused, a tenth state is selected:
the battery branch 1, the heat dissipation branch 5, the electric drive branch 2, the air conditioning loop 6 and the straight-through branch 3 are sequentially communicated to form a closed loop;
The refrigerant liquid absorbs heat in the battery branch 1, the electric drive branch 2 and the surrounding environment, and is transmitted to the heat dissipation branch 5 and the air conditioning loop 6 through circulation, and is used for heating the air conditioning loop 6, so that the recovered heat is blown into the passenger cabin from the air conditioner, and the heat is reduced to be dissipated into the surrounding space at will, so that the energy utilization rate is improved.
Further, referring to fig. 11, the twelve-way valve 12 has an eleventh state;
in the state of the eleventh state of the present invention,
The first end 001 communicates with the twelfth end 012;
the second end 002 communicates with the seventh end 007;
the third end 003 communicates with the sixth end 006;
Said fourth end 004 communicates with said fifth end 005;
the eighth end 008 communicates with the tenth end 011;
the ninth end 009 communicates with the tenth end 010;
when it is necessary to recover the heat of the electric drive branch 2, an eleventh state is selected:
the battery branch 1, the straight-through branch 3 and the electric drive branch 2 are sequentially communicated to form a closed loop, and the refrigerant liquid circulates between the battery branch 1 and the electric drive branch 2 and is used for absorbing heat of the electric drive branch 2 and transmitting the heat to the battery branch 1 to heat the battery branch 1.
In this way, PTC11 heating is not required to be started, so that energy consumption is reduced, and the endurance of the electric automobile is improved.
The flow direction of the refrigerant fluid firstly absorbs heat through the electric drive branch 2 and then releases heat through the battery branch 1, and no other pipelines are connected before, so that the absorbed heat can be ensured to be dissipated in the surrounding environment as little as possible.
The two branches are directly communicated, so that the flow resistance is small, the flow speed of the refrigerant liquid can be improved, and the heat exchange efficiency is improved. Due to the improvement of heat exchange efficiency, the refrigerant liquid can absorb more waste heat of the electric drive branch 2, thereby being beneficial to improving the energy utilization rate.
Further, referring to fig. 12, the twelve-way valve 12 has a twelfth state;
In the state of the twelfth state of the device,
The first end 001 communicates with the sixth end 006;
the second end 002 communicates with the fifth end 005;
the third end 003 communicates with the fourth end 004;
The seventh end 007 communicates with the tenth end 010;
the eighth end 008 communicates with the ninth end 009;
The tenth end 011 communicates with the twelfth end 012;
When it is necessary to recover the heat of the battery branch 1, the twelfth state is selected:
the battery branch 1, the electric drive branch 2, the straight-through branch 3, the heating branch 4 and the air conditioning loop 6 are sequentially communicated to form a closed loop.
The specific principle is consistent with the eleventh state. When neither the heating branch 4 nor the air conditioning circuit 6 works, the refrigerant liquid absorbs the residual heat in the battery branch 1 and is transferred to the electric drive branch 2 for heating the battery branch 1.
The flow direction of the refrigerant fluid firstly absorbs heat through the battery branch 1 and then releases heat through the electric drive branch 2, so that the heat recovery function is realized.
The above description is only illustrative of the preferred embodiments of the present invention and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the invention referred to in the present invention is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present invention (but not limited to) having similar functions are replaced with each other.
Claims (10)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130016841A (en) * | 2011-08-09 | 2013-02-19 | 신길현 | H v ac and hot water for a new heat pump equipment |
| EP4197832A1 (en) * | 2021-12-14 | 2023-06-21 | Zhiji Automotive Technology Co., Ltd. | Electric vehicle thermal management loop, control method, and pure electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4015303B2 (en) * | 1998-10-26 | 2007-11-28 | 三菱重工業株式会社 | Vehicle air conditioner with cold storage unit |
| CN118139752A (en) * | 2022-11-24 | 2024-06-04 | 宁德时代新能源科技股份有限公司 | Vehicle and heat exchange system |
| JP2024127449A (en) * | 2023-03-09 | 2024-09-20 | トヨタ自動車株式会社 | Thermal Management System |
| CN116872695A (en) * | 2023-08-15 | 2023-10-13 | 莱顿汽车部件（苏州）有限公司 | Thermal management system and method based on twelve-channel integrated valve |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130016841A (en) * | 2011-08-09 | 2013-02-19 | 신길현 | H v ac and hot water for a new heat pump equipment |
| EP4197832A1 (en) * | 2021-12-14 | 2023-06-21 | Zhiji Automotive Technology Co., Ltd. | Electric vehicle thermal management loop, control method, and pure electric vehicle |
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