CN114801651A - New energy automobile thermal management system - Google Patents
New energy automobile thermal management system Download PDFInfo
- Publication number
- CN114801651A CN114801651A CN202210543269.9A CN202210543269A CN114801651A CN 114801651 A CN114801651 A CN 114801651A CN 202210543269 A CN202210543269 A CN 202210543269A CN 114801651 A CN114801651 A CN 114801651A
- Authority
- CN
- China
- Prior art keywords
- water
- air
- valve
- loop
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 290
- 239000003507 refrigerant Substances 0.000 claims abstract description 145
- 239000000498 cooling water Substances 0.000 claims abstract description 133
- 238000004378 air conditioning Methods 0.000 claims abstract description 98
- 239000007788 liquid Substances 0.000 claims abstract description 98
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000006870 function Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims description 153
- 238000001816 cooling Methods 0.000 claims description 120
- 238000005057 refrigeration Methods 0.000 claims description 51
- 238000001704 evaporation Methods 0.000 claims description 17
- 230000008020 evaporation Effects 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 238000000926 separation method Methods 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 9
- 239000002826 coolant Substances 0.000 description 8
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000007791 dehumidification Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000008236 heating water Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B60H1/00007—Combined heating, ventilating, or cooling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a new energy automobile heat management system, which comprises a cooling water system and an air conditioner refrigerant system; an air conditioning refrigerant system comprising: air conditioner compressor, outdoor condenser, valve module; the valve component comprises a water-cooled condenser, a gas-liquid separator, a two-way valve and a three-way valve; the cooling water system comprises a driving motor loop, a power battery loop and a warm air loop; the drive motor circuit includes: a low-temperature radiator and a four-way water valve; the power battery loop includes: a power battery and a water-water heat exchanger; the warm air circuit includes: a three-way water valve; the invention adopts an integrated heat pump air conditioning system, realizes the combination of a driving motor loop, a passenger compartment warm air loop and a battery loop through the integrated design of a cooling water path, realizes the combination of the driving motor loop, the passenger compartment warm air loop and the battery loop, realizes the effective utilization of energy, simultaneously overall arranges the functions of parts, and saves the cost while saving electric energy.
Description
Technical Field
The invention relates to a new energy automobile heat management system.
Background
In recent years, the automobile industry has been changing dramatically, and one of the most important issues is the trend of automobile modernization. The electric automobile is taken as the basis of 'new four-generation', the trend of electromotion is inevitable, and with the continuous promotion of more wild clean energy targets in China and cities, more and more electricity is used in daily life under the consideration of factors such as solar energy, wind energy, nuclear energy and other low-emission, non-emission or non-pollution energy sources, and the like, under the trend of national policy popularization and charging equipment popularization, the acceptance of users is higher and higher, and the market is continuously increased dramatically.
Compared with the traditional fuel oil automobile which utilizes the waste heat of the engine for indoor heating, the subjective feeling of a user on energy consumption is not obvious; the electric automobile needs to heat water or air by means of electric energy consumption for indoor heating, and the power requirement of winter heating is high, so that the electric energy consumption of the electric automobile in winter heating can influence the driving range of the electric automobile in winter to a great extent, and the popularization of the electric automobile is directly influenced.
In order to reduce the heating mileage loss of the electric automobile, the traditional PTC scheme is replaced by the scheme of the main heat-pushing pump system in the industry at present, the heat of the traditional PTC scheme is completely converted by electric energy, the energy consumption is high, the user perception is obvious, and the main principle of the heat pump scheme is that the heat existing in outdoor air is absorbed by the compressor to do work and then is discharged in the indoor heat exchanger, so that the overall heating efficiency can be improved, and the heating energy consumption is reduced. At present, the electric vehicle adopting a heat pump heating scheme has a tendency of continuously rising. However, in order to realize the refrigerant reverse circulation, the heat pump system needs to add controlled elements and make an optimized design, which results in higher system cost than the PTC solution, and the conventional heat pump system has many parts, which have adverse effects on the vehicle parts.
Compare in traditional fuel vehicle, the motor of electric motor car, the battery all has the requirement to the thermal management, it needs cooling circuit to take the heat out to drive to need the cooling circuit, and the battery needs the heat to take out under high temperature environment, and need the heat to its heating under low temperature environment, with battery capacity and the discharge efficiency under the improvement low temperature environment, consequently need integrate the design to the energy cycle of each system of electric motor car, under the condition that satisfies the hot demand of each system, the make full use of heat realizes the effective use of electric energy in the circulation of different systems.
A thermal management system shown in patent document CN111216515B "a thermal management system for electric vehicles":
the electric automobile heat management system not only needs to meet the requirements of full utilization and reliability of energy, but also needs to fully combine the positioning of automobile types, user groups and endurance mileage targets to carry out scheme adjustment, so that the scheme selection of the heat management system needs to have flexibility to meet the actual requirements of cost and demand. The design goal of the system is that the platform thermal management system can simultaneously meet the switching of different schemes to meet the requirements of a plurality of vehicle types. The heat management system adopts a heat pump air conditioning system and can pass through the following air conditioning refrigerant two-way valves; the air conditioner refrigerant throttle valve changes the flow direction of the refrigerant, thereby realizing the refrigeration and heating functions of the heat pump system, and absorbing energy from outdoor air, a motor and a battery water channel for indoor heating. Passing through a three-way water valve; a four-way reversing valve; the water-water heat exchanger realizes the integration of a motor, a battery and a warm air water path. However, the system has a large number of refrigerant valves, single-function parts and high cost, and is not suitable for popularization in low-cost new energy vehicle types. In the conventional heat pump system design, the air-liquid separator needs to be added for considering the reliable operation in the heating mode, but in the cooling mode, the air-liquid separator can increase the flow resistance of refrigerant flowing and absorb harmful waste heat in the engine room, so that energy waste is caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a new energy automobile heat management system, which adopts an integrated heat pump air conditioning system, realizes the combination of a driving motor loop, a passenger compartment warm air loop and a battery loop through the integrated design of a cooling water path, realizes the effective utilization of energy, simultaneously integrates the functions of parts, and saves the cost while saving electric energy.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
the thermal management system of the new energy automobile comprises a cooling water system and an air conditioner refrigerant system;
the air conditioning refrigerant system includes: an air conditioner compressor 110, an outdoor condenser 111, and a valve block 130; the valve bank 130 comprises a water-cooled condenser 131, a gas-liquid separator 135, a heat pump two-way valve 132, a refrigeration two-way valve 137 and a heat pump three-way valve 133; the gas-liquid separator three-way valve 136 is used for realizing the heat exchange of the refrigerant in the outdoor condenser 111 in a refrigeration and heating mode; the refrigerant passes through the air conditioner compressor 110 and then is output to the water-cooled condenser 131 in the valve bank 130 or directly output to the outdoor condenser 111; the cooling two-way valve 137 is opened in the cooling mode and closed in the heating mode, so that the liquid refrigerant passing through the outdoor condenser 111 passes through to enter the air-conditioning expansion valve 102 and the air-conditioning evaporator core 103 for evaporation and heat absorption; the heat pump two-way valve 132 is opened in the heat pump heating mode and closed in the cooling mode or the PTC heating mode, so that the liquid refrigerant passing through the water-cooled condenser 131 passes through and enters the heat pump electronic expansion valve 134 and the condenser electronic expansion valve 121 for throttling, and evaporation and heat absorption are performed in the outdoor condenser 111 and the battery Chiiler 122; the heat pump three-way valve 133 functions in a cooling mode to allow the gaseous refrigerant to enter the inlet end of the outdoor condenser 111 from the outlet end of the water-cooled condenser 131, and in a heating mode to allow the gaseous refrigerant, which has absorbed heat from the air and flows out from the inlet end of the outdoor condenser (111), to enter the gas-liquid separator 135.
Further, the outdoor condenser 111 has two cooling and heating modes, in which heat of the refrigerant is transferred to the outdoor air and the refrigerant is condensed during cooling, and in which the throttled liquid refrigerant can sufficiently absorb heat in the air for subsequent heat release during heating.
Further, the outdoor condenser 111 has 2 outlets, and is used in the cooling and heating operation modes, respectively. If only the cooling mode exists, the outlet of the heating mode is physically closed, so that the generalization is realized.
Further, an electric fan 106 is also included; the electric fan 106 operates by receiving a control signal, and introduces outdoor air to the surface of the outdoor condenser 111, thereby realizing heat exchange of the outdoor condenser 111.
Further, the system also comprises a Chiller electronic expansion valve 121, wherein the Chiller electronic expansion valve 121 and a battery Chiller122 are of an integrated structure, and evaporation and heat absorption of a refrigerant are realized through throttling evaporation, so that the temperature of a water side is reduced and the energy of the refrigerant side is moved; the heat pump electronic expansion valve 134 functions to throttle and depressurize the liquid refrigerant passing through the water-cooled condenser 131 during heating, so that the refrigerant can enter the outdoor condenser 111 from the intermediate outlet of the outdoor condenser 111 to exchange heat with outdoor air.
Further, the air conditioner expansion valve 102 and the air conditioner evaporator core 103 realize evaporation and heat absorption of the refrigerant through throttling evaporation, and transfer heat inside the passenger compartment to the air conditioning system to realize cooling.
Furthermore, the cooling water system comprises a driving motor loop, a power battery loop and a warm air loop; the drive motor circuit includes: a low temperature radiator 140, a four-way water valve 145; the power battery circuit comprises: a water-water heat exchanger 144; the warm air circuit comprises: a three-way water valve 146; 147; 148; the three-way water valve guides the warm air water loop into the water-water heat exchanger 144 for exchanging the energy of the warm air core loop with the heat of the power battery loop; and the two ends of the warm air core loop are connected so that cooling water does not pass through the water-water heat exchanger.
Further, the four-way water valve 145 is used for communicating the driving motor loop and the power battery loop; the power battery loop and the driving motor loop are connected in series and communicated, so that the power battery loop and the driving motor loop are mutually independent. The motor three-way water valve 146 is used for controlling whether the driving motor loop passes through the low-temperature radiator 140; the four-way water valve 145 and the motor three-way water valve 146 are physically integrated; the battery three-way water valve 147 is used for constructing a small loop in a power battery loop, and cooling water passing through the battery Chiller122 is independently discharged and integrated with a water path of a driving motor loop through the combined action of the battery three-way water valve 145; a three-way water valve 146; 147. the four-way water valve 145 may be physically integrated as a whole and integrated separately. The warm air three-way water valve 148 is used for constructing a small loop in an air conditioning warm air loop and guiding cooling water passing through the high-pressure PTC (139) into the water-water heat exchanger 144.
Furthermore, the three-way water valve and the four-way water valve can be integrated into a five-way water valve or a six-way water valve, and the connection relationship is the same as that described above.
Further, a double-area air conditioner three-way water valve 149 is added to optimize the function of the double-area air conditioner; the three-way water valve 149 of the two-zone air conditioner is connected with the driver side of the air conditioner warm air core 104 and the high-voltage PTC 139.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts an integrated heat pump air conditioning system, realizes the combination of a driving motor loop, a passenger cabin warm air loop and a battery loop through the integrated design of a cooling water path, realizes the effective utilization of energy, and simultaneously integrates the functions of parts, thereby saving electric energy and saving cost.
Drawings
FIG. 1 is a schematic diagram of a thermal management system of a new energy automobile according to the invention;
FIG. 2 is a schematic view of an embodiment;
FIG. 3 is a schematic view of the second embodiment;
FIG. 4 is a fourth schematic view of the embodiment;
FIG. 5 is a schematic diagram of the fifth embodiment;
FIG. 6 is a sixth schematic view of the embodiment;
FIG. 7 is a seventh schematic view of the embodiment;
FIG. 8 is an eleventh schematic view of the embodiment;
FIG. 9 is a fourteenth schematic diagram according to an embodiment;
FIG. 10 is a schematic view of a sixteenth embodiment;
FIG. 11 is a first diagram illustrating a nineteenth embodiment;
FIG. 12 is a second schematic diagram illustrating a nineteenth embodiment;
FIG. 13 is a schematic view of an embodiment twenty;
FIG. 14 is a schematic view of an embodiment in twenty-eight;
FIG. 15 is a schematic diagram of an embodiment in thirty-five;
FIG. 16 is a schematic thirty-five diagram of the second embodiment.
FIG. 17 is a first schematic diagram illustrating a variation of the solution implemented by using a five-way valve or a six-way valve through waterway integration optimization;
FIG. 18 is a schematic diagram of a variation of the solution implemented by using a five-way valve or a six-way valve through waterway integration optimization;
FIG. 19 is a functional schematic diagram of a double-zone air conditioner optimized by adding a three-way water valve.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
the invention aims to provide a new energy automobile heat management system, which adopts an integrated heat pump air conditioning system, realizes the combination of a driving motor loop, a passenger compartment warm air loop and a battery loop through the integrated design of a cooling water path, realizes the effective utilization of energy, simultaneously overall arranges the functions of parts, saves electric energy and saves cost. The principle structure comprises a cooling water system and an air conditioner refrigerant system, wherein the cooling water system is divided into a driving motor loop, a power battery loop and a warm air core body loop which are communicated through a water valve. An air conditioner, a condenser, a compressor, a beller electronic expansion valve, a battery beller and the like of the air conditioner refrigerant system are universal parts, and the valve bank is adopted by the heat pump system.
Referring to fig. 1, the invention provides a thermal management system of a new energy pure electric vehicle, which includes a cooling water system and an air conditioner refrigerant system. An air conditioning refrigerant system comprising: the air conditioner assembly 100 (which comprises a blower 101, an air conditioner expansion valve 102, an air conditioner evaporator core 103, an air conditioner warm air core 104, an air outlet 105, an air conditioner compressor 110, an outdoor condenser 111, a Chiller electronic expansion valve 121, a battery Chiller122, a valve bank 130 and related refrigerant pipelines and sensors inside, the cooling water system comprises 3 loops, namely a driving motor loop, a power battery loop and a warm air loop, wherein the driving motor loop comprises a driving motor 107 (which comprises a driving motor, a DCDC and a controller inside), a low-temperature radiator 140, a motor electric water pump 141, a driving motor water loop expansion valve water tank 152, an electric fan 106 and an expansion water tank 151, and further comprises a four-way water valve 145 and a motor three-way water valve 146, and finally comprises required connecting pipelines and sensors, and the power battery loop comprises a power battery 108, a battery electric water pump 142, a water-water heat exchanger 144 and sensors, The system comprises a battery Chiller122, an expansion water tank 151, a four-way water valve 145, a motor three-way water valve 146 and a required liquid working medium connecting pipeline. The warm braw core return circuit includes: the air-conditioning and heating system comprises an air-conditioning and heating core body 104, a heating electric water pump 143, a high-pressure PTC139, a heating three-way water valve 148, a water-water heat exchanger 144, an expansion water tank 150, battery three- way water valves 147 and 148, a four-way water valve 145 and a required liquid working medium connecting pipeline. The air conditioning compressor 110 of the air conditioning refrigerant system compresses the gaseous refrigerant in the air conditioning system by using high-voltage electric energy, so that the pressure of the gaseous refrigerant is increased, and the gaseous refrigerant is convenient to condense after absorbing heat subsequently. The refrigerant passes through the air conditioner compressor 110 and is output to the water-cooled condenser 131 in the valve bank 130 or directly output to the outdoor condenser 111. The outdoor condenser 111 has two cooling and heating modes, wherein the heat of the refrigerant is transferred to the outdoor air during cooling and is condensed, and the throttled liquid refrigerant can fully absorb the heat in the air for subsequent heat release during heating. The outdoor condenser 111 has 2 outlets, which are respectively used for refrigeration and heating. If only the cooling mode exists, the outlet of the heating mode is physically closed, so that the generalization is realized. The electric fan 106, by receiving the control signal, works to guide the outdoor air to the surface of the outdoor condenser 111 to realize the heat exchange of the outdoor condenser 111. The Chiller electronic expansion valve 121 and the battery Chiller122 are of an integrated structure, and evaporation and heat absorption of a refrigerant are achieved through throttling evaporation, so that the temperature of a water side is reduced, and the energy of the refrigerant side is moved. The air conditioner expansion valve 102 and the air conditioner evaporator core body 103 realize the evaporation and heat absorption of the refrigerant through throttling evaporation, and transfer the heat in the passenger compartment to the air conditioning system to realize the cooling.
The valve set 130 includes a water-cooled condenser 131, a gas-liquid separator 135, a heat pump electronic expansion valve 134, a refrigeration two-way valve 137, a heat pump two-way valve 132, a heat pump three-way valve 133, and a gas-liquid separator three-way valve 136, which implement heat exchange of refrigerant in the outdoor condenser 111 in the refrigeration and heating modes, so as to optimize the energy-saving effect of the air source heat pump. The cooling two-way valve 137 is opened in the cooling mode and closed in the heating mode, so that the liquid refrigerant passing through the outdoor condenser 111 may pass into the air conditioning expansion valve 102 and the air conditioning evaporator core 103 to absorb heat by evaporation. The heat pump three-way valve 133 functions in a cooling mode such that the gaseous refrigerant enters the inlet end of the outdoor condenser 111 from the outlet end of the water condenser 131, and in a heating mode such that the gaseous refrigerant having absorbed heat from the air flowing out of the inlet end of the outdoor condenser 111 can enter the gas-liquid separator 135. The heat pump electronic expansion valve 134 functions to throttle and depressurize the liquid refrigerant passing through the water-cooled condenser 131 during heating, so that the refrigerant can enter the outdoor condenser 111 from the intermediate outlet of the outdoor condenser 111 to exchange heat with outdoor air.
A warm air three-way water valve 148 in a cooling water system. The warm air water circuit may be directed into the water-to-water heat exchanger 144 for energy exchange of the warm air core circuit with the power cell circuit heat. It is also possible to connect the two ends of the warm air core loop so that the cooling water does not pass through the water-water heat exchanger. A four-way water valve 145, a motor three-way water valve 146 and related pipelines. The four-way water valve 145 is used for communicating the driving motor loop with the power battery loop. The power battery loop and the driving motor loop can be connected in series and communicated, and the power battery loop and the driving motor loop can be mutually independent. The motor three-way water valve 146 is used to control whether the drive motor loop passes through the low temperature radiator 140. The four-way water valve 145 and the motor three-way water valve 146 may be physically integrated. The battery three-way water valve 147 is used for constructing a small loop in a power battery loop, and cooling water passing through the battery Chiller122 is separated out and integrated with a water channel of a driving motor loop through the combined action of the battery three-way water valve 145. The battery three-way water valve 147, the four-way water valve 145, and the motor three-way water valve 146 may be physically integrated.
Example one
Referring to fig. 2, Mode1 (passenger compartment cooling Mode): when the temperature of the passenger compartment is high and the passenger has the need of cooling, the system is started. In the structure, the air-conditioning compressor 110 compresses the gaseous refrigerant, and the gaseous refrigerant enters the water-cooled condenser 131 and then directly passes through the water-cooled condenser, and at this time, the valve set 130 acts as follows: the heat pump three-way valve 133 is communicated with the outdoor condenser 111 from the water-cooled condenser 131, is closed from the water-cooled condenser to the gas-liquid separator 135, the heat pump electronic expansion valve 134 is closed, the two refrigeration two-way valve 137 is open, the heat pump two-way valve 132 is closed, the gas-liquid separator three-way valve 136 is communicated from the air-conditioning evaporator core 103 to the air-conditioning compressor 110, and is closed from the air-conditioning evaporator core 103 to the gas-liquid separator 135. Since the heat pump two-way valve 132 is closed, the refrigerant passes through the heat pump three-way valve 133 and then enters the outdoor condenser 111, and the outdoor air flows by the electric fan 106 to exchange heat with the outdoor air inside the outdoor condenser 111, so that the refrigerant is condensed. Because the heat pump electronic expansion valve 134 and the refrigeration two-way valve 137 are opened, and the heat pump two-way valve 132 and the Chiller electronic expansion valve 121 are closed, the liquid refrigerant can only enter the air-conditioning expansion valve 102 through the refrigeration two-way valve 137 for throttling. The air flow of the air conditioner 100 caused by the blower 101 exchanges heat with indoor air in the air conditioner evaporator core 103 of the air conditioner evaporator core 103, the temperature of the indoor air is reduced, the air flows out of the air outlet 105 into the cab, the refrigerant absorbs heat at the same time and is converted into a complete gas state, and the gas-liquid separator three-way valve 136 returns to the air conditioner compressor 110, so that a refrigeration cycle of the air conditioning loop is completed. In this mode, the coolant loop is not circulating.
Example two
Referring to fig. 3, Mode2 (passenger compartment cooling and battery active cooling Mode):
in the structure, the air-conditioning compressor 110 compresses the gaseous refrigerant, and the gaseous refrigerant enters the water-cooled condenser 131 and then directly passes through the water-cooled condenser, and at this time, the valve set 130 acts as follows: the heat pump three-way valve 133 is communicated with the outdoor condenser 111 from the water-cooled condenser 131, is communicated with the gas-liquid separator 135 from the water-cooled condenser, is closed, the heat pump electronic expansion valve 134 is closed, the refrigeration two-way valve 137 is communicated, the heat pump two-way valve 132 is closed, the gas-liquid separator three-way valve 136 is communicated from the air-conditioning evaporator core 103 to the air-conditioning compressor 110, and is closed from the air-conditioning evaporator core 103 to the gas-liquid separator 135. Since the heat pump two-way valve 132 is closed, the refrigerant passes through the heat pump three-way valve 133 and then enters the outdoor condenser 111, and the outdoor air flows by the electric fan 106, and exchanges heat with the outdoor air inside the outdoor condenser 111, so that the refrigerant is condensed. Because the heat pump electronic expansion valve 134 and the heat pump two-way valve 132 are closed, and the refrigeration two-way valve 137 is opened, the liquid refrigerant can only enter the air-conditioning expansion valve 102 for throttling and the Chiller electronic expansion valve 121 for throttling. The liquid refrigerant is divided into two paths, and one path enters the air-conditioning expansion valve 102 for throttling. The air in the air conditioner 100 flows through the blower 101, and exchanges heat with indoor air in the core body of the air conditioner evaporator core body 103, so that the temperature of the indoor air is reduced, the air flows out of the air outlet 105 into the cab, and the refrigerant absorbs heat and is converted into a complete gas state. The other path of the refrigerant enters a battery Chiller122 through a Chiller electronic expansion valve 121 in a throttling mode, heat exchange is carried out between the other path of the refrigerant and cooling liquid of a battery water loop inside the battery Chiller122, the temperature of the cooling water is reduced, and the refrigerant absorbs heat and is converted into a complete gas state. The refrigerant flowing out of air conditioner evaporator core 103 and battery Chiller122 is merged back to air conditioner compressor 110, thus completing one refrigeration cycle of the air conditioning circuit. Under the battery coolant loop, the battery electric water pump 142 is started to circulate the coolant, so that the coolant with the temperature reduced after passing through the battery Chiller122 enters the power battery 108 and passes through the water-water heat exchanger 144, and at this time, the water-water heat exchanger 144 does not exchange heat. Since the battery three-way water valve 147 is conducting the power battery to the battery Chiller122, and the battery Chiller122 to battery electric water pump 142 is turned off, the cooling water returns to the battery Chiller 122. The four-way water valve 145 is in a state that the battery cooling circuit is unobstructed, and the cooling water passing through the battery Chiller122 returns to the battery electric water pump 142 through the four-way water valve 145. If there is air in the cooling water, the air enters the expansion tank 151. In this mode, the power battery water circuit and the warm air core water circuit do not circulate.
EXAMPLE III
Mode3 (battery active cooling Mode):
based on the original working state of the Mode2 (passenger compartment cooling and battery active cooling Mode), the air conditioner expansion valve 102 is changed to be completely closed and the blower 101 is closed, and the refrigerant and the indoor circulating air do not exchange heat through the air conditioner evaporator core 103. The rest of the working state is the same as the Mode 2.
Example four
Referring to fig. 4, Mode4 (passenger compartment PTC heating Mode)
The outside environment temperature is low, and the passenger compartment has a heating requirement, but when the heat pump starting condition is not satisfied, the air conditioning system enters a passenger compartment PTC heating mode. In the structure, the electric warm air water pump 143 is started, so that the heated cooling water enters the water-cooled condenser 131, and the water-cooled condenser 131 does not exchange heat. And then enters the high-voltage PTC139, and the high-voltage PTC139 is started to convert the electric energy into heat energy to heat the cooling water. And then enters the air conditioning heater core 104. The air in the air conditioner 100 flows by the blower 101, exchanges heat with the indoor air inside the air conditioning core 104, raises the temperature of the indoor air, and flows out from the outlet 105 into the cab. At this time, the warm air three-way water valve 148 is in a state of not communicating with the water heat exchanger 144. The cooling water passes through the three-way valve 148 to complete a cycle, and if there is air in the cooling water, the cooling water enters the expansion tank 151.
EXAMPLE five
Referring to FIG. 5, Mode5 (passenger compartment air source heat pump heating Mode)
The temperature of the external environment is low, the passenger cabin has heating requirements, and if the heating of the air source heat pump meets the starting conditions, the air conditioning system enters the air source heating mode of the passenger cabin. The air conditioner compressor 110 compresses the gaseous refrigerant in the structure, the compressed gaseous refrigerant enters the water-cooled condenser 131, and due to circulation of the warm air core water loop, the refrigerant exchanges heat with cooling water in the warm air core water loop inside the water-cooled condenser 131, and the refrigerant is condensed. The operation of the valve block 130 at this time is: at this time, the heat pump two-way valve 132 is opened, the heat pump electronic expansion valve 134 is opened for throttling at the intermediate position, the refrigeration two-way valve 137 is closed, and the gas-liquid separator three-way valve 136 is opened from the outdoor condenser 111 to the gas-liquid separator 135. Because the heat pump three-way valve 133 is closed on the side of the water-cooled condenser, the two refrigeration way valve 137, the air-conditioning expansion valve 102 and the Chiller electronic expansion valve 121 are all in a closed state, the two heat pump two-way valve 132 is in an open state, the refrigerant can only enter the heat pump electronic expansion valve 134 through the two heat pump two-way valve 132 and enters the outdoor condenser 111 after throttling, and the refrigerant exchanges heat with the outdoor air inside the outdoor condenser 111 due to the outdoor air flowing caused by the electric fan 106, so that the refrigerant absorbs heat from the outdoor air and turns into a gaseous state. Because the gas-liquid separator three-way valve 136 is in the open state from the outdoor condenser 111 to the gas-liquid separator 135, and the gas-liquid separator three-way valve 136 is in the closed state from the outlet of the battery Chiller122 to the gas-liquid separator 135 and to the interface of the compressor 110, the gas-liquid mixed refrigerant can only enter the gas-liquid separator 135 for gas-liquid separation, and after separation, because the gas-liquid separator three-way valve 136 is in the closed state from the outlet of the battery Chiller122 to the gas-liquid separator 135 and to the interface of the compressor 110, the refrigerant can only return to the air-conditioning compressor 110, so that one refrigeration cycle of the air-conditioning loop is completed. In the warm air core water circuit, the warm air electric water pump 143 is started, so that the heated cooling water enters the water-cooled condenser 131, and the temperature of the cooling water is raised by heat exchange with the refrigerant in the water-cooled condenser 131. And then enters the air conditioning heater core 104. The air in the air conditioner 100 flows by the blower 101, exchanges heat with the indoor air inside the air conditioning core 104, raises the temperature of the indoor air, and flows out from the outlet 105 into the cab. At this time, the warm air three-way water valve 148 is in a state of not communicating with the water heat exchanger 144. The cooling water completes a cycle after passing through the warm air three-way water valve 148, and enters the expansion tank 151 if air exists in the cooling water.
EXAMPLE six
Referring to fig. 6, Mode6 (heating Mode of passenger cabin driving motor water source heat pump)
The temperature of the external environment is low, the passenger cabin has heating requirements, and if the water source heat pump meets the starting conditions and the air heat pump does not meet the starting conditions, the air conditioning system enters the heating mode of the water source heat pump of the passenger cabin. The air conditioner compressor 110 compresses the gaseous refrigerant in the structure, the compressed gaseous refrigerant enters the water-cooled condenser 131, and due to circulation of the warm air core water loop, the refrigerant exchanges heat with cooling water in the warm air core water loop inside the water-cooled condenser 131, and the refrigerant is condensed. The operation of the valve block 130 at this time is: at this time, the refrigeration two-way valve 137 is closed, the heat pump electronic expansion valve 134 is closed, the heat pump three-way valve 133 is closed from the water-cooled condenser 131 to the gas-liquid separator 135 and the outdoor condenser 111, the heat pump two-way valve 132 is open, and the gas-liquid separator three-way valve 136 is open from the battery Chiller122 to the gas-liquid separator 135. Because the heat pump electronic expansion valve 134, the refrigeration two-way valve 137 are closed, the air conditioner expansion valve 102 is closed, and the heat pump three-way valve 133 is closed, the refrigerant can only pass through the heat pump two-way valve 132, enters the battery Chiller122 after being throttled by the Chiller electronic expansion valve 121, and because the cooling water caused by the motor electric water pump 141 flows, heat exchange is carried out between the inside of the battery Chiller122 and the cooling water, so that the refrigerant absorbs heat from the cooling water and turns into a gas state. Since the gas-liquid separator three-way valve 136 is in a state from the outlet of the cell Chiller122 to the gas-liquid separator 135, the refrigerant in a gas-liquid mixed state enters the gas-liquid separator 135 to be subjected to gas-liquid separation, and after separation, since the interface from the gas-liquid separator three-way valve 136 to the compressor 110 is in a closed state, the refrigerant can only return to the air-conditioning compressor 110, so that one refrigeration cycle of the air-conditioning loop is completed. In the warm air core water circuit, the warm air electric water pump 143 is started, so that the heated cooling water enters the water-cooled condenser 131, and the temperature of the cooling water is raised by heat exchange with the refrigerant in the water-cooled condenser 131. And then enters the air conditioning heater core 104. The air in the air conditioner 100 flows by the blower 101, exchanges heat with the indoor air inside the air conditioning core 104, raises the temperature of the indoor air, and flows out from the outlet 105 into the cab. At this time, the warm air three-way water valve 148 is in a state of not communicating with the water heat exchanger 144. The cooling water completes a cycle after passing through the warm air three-way water valve 148, and enters the expansion tank 151 if air exists in the cooling water. In the drive motor water circuit, the motor electric water pump 141 is started, passing through the drive motor 107, and the cooling water is heated due to heat generated when the drive motor 107 operates. At this time, the four-way water valve 145 is in a state of driving the motor 107 to be conducted to the battery Chiller122, the battery electric water pump 142 to the motor three-way water valve 146 is opened, and the battery three-way water valve 147 is in a state of driving the battery Chiller122 to be conducted to the battery electric water pump 142 and being closed to the water-water heat exchanger 144. The cooling water passes through the four-way water valve 145, then passes through the battery Chiller122, is cooled through heat exchange with the refrigerant, passes through the battery three-way water valve 147, and returns to the motor cooling loop through the four-way water valve 145 due to the fact that the battery electric water pump 142 is closed. Because the state of the three-way water valve 146 of the motor is that the low-temperature radiator-to-motor electric water pump 141 is closed, and the four-way water valve 145-to-motor electric water pump 141 is opened, the cooling water directly returns to the motor electric water pump 141 without passing through the low-temperature radiator 140 under the action of the pressure difference, so that the cooling water completes one cycle.
EXAMPLE seven
Referring to FIG. 7, Mode7 (passenger compartment double heat source heat pump heating Mode)
The temperature of the external environment is low, the passenger compartment has heating requirements and heating quantity requirements are high, the heating quantity of the air heat pump or the water source heat pump is independently relied on, the heat quantity requirements of the passenger compartment cannot be met, and if the heating quantity of the air heat pump or the water source heat pump meets the starting conditions, the air conditioning system enters a heating mode of the double-heat-source heat pump of the passenger compartment. The air conditioner compressor 110 compresses the gaseous refrigerant in the structure, the compressed gaseous refrigerant enters the water-cooled condenser 131, and due to circulation of the warm air core water loop, the refrigerant exchanges heat with cooling water in the warm air core water loop inside the water-cooled condenser 131, and the refrigerant is condensed. The operation of the valve block 130 at this time is: at this time, the refrigeration two-way valve 137 is closed, the heat pump electronic expansion valve 134 is in an intermediate throttle state, the heat pump three-way valve 133 is in a closed state from the water-cooled condenser 131 to the gas-liquid separator 135, the outdoor condenser 111 to the gas-liquid separator 135 are in an open state, the heat pump two-way valve 132 is in an open state, and the gas-liquid separator three-way valve 136 is in an open state from the battery Chiller122 to the gas-liquid separator 135. Because the refrigeration two-way valve 137 is closed, the air-conditioning expansion valve 102 is closed, the heat pump three-way valve 133 is closed from the water-cooled condenser 131 to the outdoor condenser 111, the outdoor condenser 111 to the gas-liquid separator 135 are opened, the refrigerant can only pass through the heat pump two-way valve 132, one path of the refrigerant enters the battery Chiller122 after being throttled by the Chiller electronic expansion valve 121, and the refrigerant exchanges heat with the cooling water inside the battery Chiller122 due to the flowing of the cooling water caused by the motor electric water pump 141, so that the refrigerant absorbs heat from the cooling water and turns out to be in a gas state. Since the gas-liquid separator three-way valve 136 is in a state from the outlet of the cell Chiller122 to the gas-liquid separator 135, the gas-liquid mixed refrigerant enters the gas-liquid separator 135 to be subjected to gas-liquid separation. Since the air conditioner expansion valve 102 is closed and the refrigeration two-way valve 137 is closed, the refrigerant enters the outdoor condenser 111 after being throttled by the heat pump electronic expansion valve 134, and the outdoor air flows due to the electric fan 106, and exchanges heat with the outdoor air inside the outdoor condenser 111, so that the refrigerant absorbs heat from the outdoor air and turns into a gaseous state. Because the air-conditioning expansion valve 102 is closed and the outdoor condenser 111 to the gas-liquid separator 135 of the heat pump three-way valve 133 is opened, the gas-liquid mixed refrigerant can only join with the other path of refrigerant and then enters the gas-liquid separator 135 for gas-liquid separation, and after separation, because the interface from the gas-liquid separator three-way valve 136 to the compressor 110 is in a closed state, the refrigerant can only return to the air-conditioning compressor 110, so that one refrigeration cycle of the air-conditioning loop is completed. In the warm air core water circuit, the warm air electric water pump 143 is started, so that the heated cooling water enters the water-cooled condenser 131, and the temperature of the cooling water is raised by heat exchange with the refrigerant in the water-cooled condenser 131. And then enters the air conditioning heater core 104. The air in the air conditioner 100 flows by the blower 101, exchanges heat with the indoor air inside the air conditioning core 104, raises the temperature of the indoor air, and flows out from the outlet 105 into the cab. At this time, the warm air three-way water valve 148 is in a state of not communicating with the water heat exchanger 144. The cooling water completes a cycle after passing through the warm air three-way water valve 148, and enters the expansion tank 151 if air exists in the cooling water. In the drive motor water circuit, the motor electric water pump 141 is started, passing through the drive motor 107, and the cooling water is heated due to heat generated when the drive motor 107 operates. At this time, the four-way water valve 145 is in a state of driving the motor 107 to be conducted to the battery Chiller122, the battery electric water pump 142 to the motor three-way water valve 146 is opened, and the battery three-way water valve 147 is in a state of driving the battery Chiller122 to be conducted to the battery electric water pump 142 and being closed to the water-water heat exchanger 144. The cooling water passes through the four-way water valve 145, then passes through the battery Chiller122, is cooled through heat exchange with the refrigerant, passes through the battery three-way water valve 147, and returns to the motor cooling loop through the four-way water valve 145 due to the fact that the battery electric water pump 142 is closed. Because the state of the motor three-way water valve 146 is that the low-temperature radiator-motor electric water pump 141 is closed, the four-way water valve 145-motor electric water pump 141 is opened, and the differential pressure action enables the cooling water to directly return to the motor electric water pump 141 without passing through the low-temperature radiator 140, so that the cooling water completes a cycle.
Example eight
Mode8 (heating Mode of air source heat pump combined PTC passenger cabin)
The air conditioning system is characterized in that the temperature of the external environment is low, the passenger cabin has heating requirements, if the air source heat pump is used for heating to meet starting conditions, the heating load requirements cannot be met by the aid of the heating quantity of the air source heat pump alone in the structure, and when the water source heat pump is used for heating to not meet the starting conditions, the air conditioning system enters a passenger cabin air source heating and PTC heating mode.
And (3) starting the high-voltage PTC139 to secondarily heat the water path on the basis of the Mode5, wherein the rest is consistent with the Mode 5.
Example nine
Mode9 (passenger cabin driving motor water source heat pump combined PTC heating Mode)
The external environment temperature is low, the passenger cabin has heating requirements, and if the motor water source heat pump is used for heating and meets the starting conditions and does not meet the starting conditions of the air heat pump in the structure, but the heating quantity of the water source heat pump is independently used for not meeting the heating load requirements, the air conditioning system enters a passenger cabin motor water source combined PTC heating mode.
And (3) starting the high-voltage PTC139 to secondarily heat the water path on the basis of the Mode6, wherein the rest is consistent with the Mode 6.
Example ten
Mode10 (passenger cabin double heat source heat pump combined PTC heating Mode)
The external environment temperature is low, the passenger cabin has heating requirements, and in the structure, if the water source heat pump and the air heat pump of the motor meet starting conditions in a heating mode, but the heating capacity of the heat pump cannot meet heating load requirements, the air conditioning system enters a double-heat-source combined PTC heating mode of the passenger cabin. And (3) starting the high-voltage PTC139 to secondarily heat the water path on the basis of the Mode7, wherein the rest is consistent with the Mode 7.
EXAMPLE eleven
Referring to fig. 8, Mode11 (driving motor waste heat heating battery)
The external environment temperature is low, the power battery has heating requirements, the driving motor has waste heat utilization, the starting condition is met, and then the battery single motor waste heat heating mode is entered. In the structure, the motor electric water pump 141 in the driving motor water circuit is started, passes through the driving motor 107, and cooling water is heated due to heat generated when the driving motor 107 operates. At this time, the four-way water valve 145 is in a state of driving the motor 107 to conduct to the battery Chiller122, the battery electric water pump 142 to the motor three-way water valve 146 is opened, the battery three-way water valve 147 is in a state of turning off the battery Chiller122 to the battery electric water pump 142, and the battery Chiller122 to the water-water heat exchanger 144 is conducted. The cooling water passes through the four-way water valve 145, passes through the battery Chiller122, passes through the water-water heat exchanger 144, passes through the power battery 108, is heated and cooled by heat exchange of the cooling water, and at the moment, the battery electric water pump 142 is started to further drive the cooling water to circulate. The cooling water is returned to the motor cooling loop through the four-way water valve 145. Because the state of the motor three-way water valve 146 is that the low-temperature radiator-motor electric water pump 141 is closed, the four-way water valve 145-motor electric water pump 141 is opened, and the differential pressure action enables the cooling water to directly return to the motor electric water pump 141 without passing through the low-temperature radiator 140, so that the cooling water completes a cycle. If there is air in the cooling water, the air enters the expansion tank 151.
Example twelve
Mode12 (passenger cabin PTC heating + battery motor residual heat heating)
The outside environment temperature is lower, the passenger cabin has a heating demand and only meets the PTC starting condition, the power battery has a heating demand and the driving motor has waste heat availability, and the starting condition is met, and then the passenger cabin enters a passenger cabin PTC heating and motor waste heat heating mode.
In this Mode, Mode4 and Mode8 are combined. The independent operation does not interfere.
EXAMPLE thirteen
Mode13 (passenger cabin air-conditioner source heat pump and battery motor residual heat heating)
The temperature of the external environment is low, the passenger cabin has heating requirements and meets the starting conditions of the air heat pump, the power battery has heating requirements and the driving motor has waste heat availability, and the heating mode of the air heat pump and the waste heat of the motor enters the passenger cabin when the starting conditions are met.
In this Mode, Mode5 and Mode8 are combined. The independent operation does not interfere.
Example fourteen
Referring to FIG. 9, Mode 14 (Battery PTC heating)
The outside environment temperature is low, the passenger cabin has no heating requirement but the battery has a heating requirement, and when the air heat pump does not meet the starting condition, the battery PTC heating mode is entered. In the structure, the high-voltage PTC139 in the water loop of the warm air core body is started to convert electric energy into heat energy to heat cooling water. The electric warm air pump 143 is activated so that the heated cooling water enters the air conditioning warm air core 104. At this time, the blower 101 does not operate, and the cooling water does not exchange heat with the indoor air inside the air conditioning and heating core 104. At this time, the warm air three-way water valve 148 is in a state of being communicated with the water-water heat exchanger 144. The cooling water passes through the water-water heat exchanger 144, then exchanges heat with the battery cooling water loop to reduce the temperature, then passes through the warm air three-way water valve 148 and then passes through the water-cooled condenser 131, and at the moment, the water-cooled condenser does not exchange heat because the refrigerant side does not work. The final cooling water flows back to the high-pressure PTC139, which completes a cycle. If there is air in the cooling water, it enters the expansion tank 150. Under the battery cooling liquid loop, the battery electric water pump 142 is started to enable cooling liquid to circulate, at the moment, the four-way water valve 145 is in a state that the battery electric water pump 142 is started to the battery Chiller122, cooling water passes through the battery Chiller122, and at the moment, the battery Chiller122 does not have heat exchange. Because the state of the battery three-way water valve 147 is that the battery Chiller 122-battery electric water pump 142 is closed, the battery Chiller 122-water heat exchanger 144 is conducted, so that the cooling water passes through the water-water heat exchanger 144. At this time, the battery cooling water is heated and heated, then passes through the power battery 108, and returns to the battery electric water pump 142 again after being subjected to heat exchange and temperature reduction, so that a cycle is completed. If there is air in the cooling water, the air enters the expansion tank 151.
Example fifteen
Mode15 (passenger cabin + battery PTC heating)
The outside environment temperature is low, the passenger compartment has a heating requirement, the battery has a heating requirement, and when the air heat pump does not meet the starting condition, the passenger compartment and the battery enter a PTC heating mode. In the air conditioner 100, the blower 101 starts operating based on the Mode12, the air in the air conditioner 100 flows by the blower 101, the cooling water exchanges heat with the indoor air in the air conditioning core 104, the temperature of the indoor air is raised, and the air flows out of the outlet 105 into the cab. The rest of the operation Mode is the same as the Mode 19.
Example sixteen
Referring to FIG. 10, Mode16 (battery air source heat pump heating)
The temperature of the external environment is low, the passenger cabin has no heating requirement and the battery has a heating requirement, and when the air heat pump meets the starting condition, the air heat pump enters the battery air heat pump source heating mode. The air conditioner compressor 110 compresses the gaseous refrigerant in the structure, the compressed gaseous refrigerant enters the water-cooled condenser 131, and due to circulation of the warm air core water loop, the refrigerant exchanges heat with cooling water in the warm air core water loop inside the water-cooled condenser 131, and the refrigerant is condensed. The operation of the valve block 130 at this time is: at this time, the heat pump two-way valve 132 is opened, the heat pump electronic expansion valve 134 is opened for throttling at the intermediate position, the refrigeration two-way valve 137 is closed, and the gas-liquid separator three-way valve 136 is opened from the outdoor condenser 111 to the gas-liquid separator 135. Because the heat pump three-way valve 133 closes the water-cooled condenser 131, the refrigeration two-way valve 137, the air-conditioning expansion valve 102, and the Chiller electronic expansion valve 121 are all in a closed state, the heat pump two-way valve 132 is in an open state, refrigerant can only enter the heat pump electronic expansion valve 134 through the heat pump two-way valve 132 to enter the outdoor condenser 111 after throttling, and due to outdoor air flowing caused by the electric fan 106, heat exchange is performed between the refrigerant and the outdoor air inside the outdoor condenser 111, so that the refrigerant absorbs heat from the outdoor air and turns into a gaseous state. Because the gas-liquid separator three-way valve 136 is in the open state from the outdoor condenser 111 to the gas-liquid separator 135, and the gas-liquid separator three-way valve 136 is in the closed state from the outlet of the battery Chiller122 to the gas-liquid separator 135 and to the interface of the air-conditioning compressor 110, the gas-liquid mixed refrigerant can only enter the gas-liquid separator 135 for gas-liquid separation, and after separation, because the gas-liquid separator three-way valve 136 is in the closed state from the outlet of the battery Chiller122 to the gas-liquid separator 135 and to the interface of the compressor 110, the refrigerant can only return to the air-conditioning compressor 110, and thus, one refrigeration cycle of the air-conditioning loop is completed. In the warm air core water circuit, the warm air electric water pump 137 is turned on, the cooling water passes through the water-cooled condenser 131, the temperature of the cooling water is raised by heat exchange with the refrigerant inside, at this time, the high-pressure PTC139 is turned off, and the cooling water enters the air-conditioning warm air core 104. At this time, the blower 101 does not operate, and the cooling water does not exchange heat with the indoor air inside the air conditioning and heating core 104. At this time, the warm air three-way water valve 148 is in a state of being communicated with the water-water heat exchanger 144. The cooling water passes through the water-water heat exchanger 144, then exchanges heat with the battery cooling water loop to reduce the temperature, then passes through the warm air three-way water valve 148, and then passes through the water-cooled condenser 131, thus completing a cycle. If there is air in the cooling water, it enters the expansion tank 150. Under the battery cooling liquid loop, the battery electric water pump 142 is started to enable cooling liquid to circulate, at the moment, the four-way water valve 145 is in a state that the battery electric water pump 142 is started to the battery Chiller122, cooling water passes through the battery Chiller122, and at the moment, the battery Chiller122 does not have heat exchange. Because the state of the battery three-way water valve 147 is that the battery Chiller 122-battery electric water pump 142 is closed, the battery Chiller 122-water heat exchanger 144 is conducted, so that the cooling water passes through the water-water heat exchanger 144. At this time, the battery cooling water is heated and heated, then passes through the power battery 108, and returns to the battery electric water pump 142 again after being subjected to heat exchange and temperature reduction, so that a cycle is completed. If there is air in the cooling water, the air enters the expansion tank 151.
Example seventeen
Mode 17 (heating Mode of passenger cabin and battery air heat pump)
The temperature of the external environment is low, the passenger cabin has a heating requirement, the battery has a heating requirement, and when the air heat pump meets the starting condition, the passenger cabin and battery air heat pump enter a heating mode. In the air conditioner 100, the blower 101 starts operating based on the Mode16, the air in the air conditioner 100 flows by the blower 101, the cooling water exchanges heat with the indoor air in the air conditioning core 104, the temperature of the indoor air is raised, and the air flows out of the outlet 105 into the cab. The rest of the operation Mode is the same as the Mode 16.
EXAMPLE eighteen
Mode18 (heating Mode of passenger compartment and battery air heat pump combined PTC)
The external environment temperature is low, the passenger compartment has a heating requirement, the battery has a heating requirement, and when the air heat pump meets the starting condition and cannot meet the requirement by independently depending on the heating quantity of the air heat pump, the passenger compartment and the battery air heat pump are combined in a PTC heating mode. In the air conditioner 100, the blower 101 starts operating based on the Mode16, the air in the air conditioner 100 flows by the blower 101, the cooling water exchanges heat with the indoor air in the air conditioning core 104, the temperature of the indoor air is raised, and the air flows out of the outlet 105 into the cab. And meanwhile, the high-voltage PTC139 works to secondarily heat the cooling water. The rest of the operation Mode is the same as the Mode 16.
Example nineteen
Referring to FIGS. 11 and 12, Mode19 (passenger compartment dehumidification)
The outside environment temperature is lower, and after the passenger cabin has a heating demand and receives a dehumidification signal, the passenger cabin enters a dehumidification mode. After the gas refrigerant is compressed by the air conditioner compressor 110 and enters the water-cooled condenser 131, the refrigerant and the warm air water loop have certain heat exchange because the warm air electric water pump 143 in the air conditioner warm air core water loop is opened, and two situations of overcooling or overheating exist. If the overheating occurs, the operation of the valve set 130 is: the heat pump three-way valve 133 is communicated with the outdoor condenser 111 from the water-cooled condenser 131, is communicated with the gas-liquid separator 135 from the water-cooled condenser, is closed, the heat pump electronic expansion valve 134 is closed, the refrigeration two-way valve 137 is communicated, the heat pump two-way valve 132 is closed, the gas-liquid separator three-way valve 136 is communicated from the air-conditioning evaporator core 103 to the air-conditioning compressor 110, and is closed from the air-conditioning evaporator core 103 to the gas-liquid separator 135. Since the heat pump two-way valve 132 is closed, the refrigerant passes through the heat pump three-way valve 133 and then enters the outdoor condenser 111, and the refrigerant is condensed by heat exchange with the outdoor air inside the outdoor condenser 111 due to the outdoor air flow caused by the electric fan 106. Since the heat pump electronic expansion valve 134, the heat pump two-way valve 132, and the Chiller electronic expansion valve 121 are closed, the liquid refrigerant can only enter the air-conditioning expansion valve 102 through the refrigeration two-way valve 137 for throttling. If the valve block 130 is too cold, the operation of the valve block 130 is: at this time, the refrigeration two-way valve 137 is closed, the heat pump electronic expansion valve 134 is closed, the heat pump three-way valve 133 is closed from the water-cooled condenser 131 to the gas-liquid separator 135 and the outdoor condenser 111, the heat pump two-way valve 132 is open, the gas-liquid separator three-way valve 136 is open from the air-conditioning evaporator core 103 to the air-conditioning compressor 110, and is closed from the air-conditioning evaporator core 103 to the gas-liquid separator 135. Since the heat pump electronic expansion valve 134 and the refrigeration two-way valve 137 are closed, and the heat pump three-way valve 133 is closed, the refrigerant can only enter the air-conditioning expansion valve 102 through the heat pump two-way valve 132 for throttling. The air flow in the air conditioner 100 caused by the blower 101 exchanges heat with the indoor air inside the air conditioner evaporator core 103, so that the temperature of the indoor air is reduced, moisture in the indoor air is condensed and separated out, the dehumidification effect is achieved, the refrigerant absorbs heat at the same time and is converted into a complete gas state, and the refrigerant returns to the air conditioner compressor 110 through the gas-liquid separator three-way valve 136, so that a refrigeration cycle of the air conditioning loop is completed. In the warm air core water loop, the warm air electric water pump 143 is started, so that the heated cooling water enters the water-cooled condenser 131, and at this time, the heat exchange of the water-cooled condenser 131 may be temperature rise or temperature reduction for the cooling liquid. The cooling water enters the high-pressure PTC139, if the water temperature does not meet the thermal load requirement, the high-pressure PTC139 is started to convert the electric energy into heat energy to heat the cooling water, and if the water temperature meets the thermal load requirement, the high-pressure PTC139 is not started and the cooling water is not heated again. In both cases, the cooling water finally enters the air conditioning heater core 104. The air in the air conditioner 100 flows by the blower 101, exchanges heat with the indoor air inside the air conditioning core 104, raises the temperature of the indoor air, and flows out into the cab through the outlet 105. At this time, the warm air three-way water valve 148 is in a state of not communicating with the water heat exchanger 144. The cooling water completes a cycle after passing through the warm air three-way water valve 148, and enters the expansion water tank 150 if the cooling water has air.
Example twenty
Referring to FIG. 13, Mode20 (drive motor cooling)
Under the condition of higher outdoor temperature, when the motor has a cooling demand and the indoor refrigeration and heating and the battery has no cooling and heating demand, the motor enters a driving motor cooling mode. In the structure, when the motor electric water pump 141 of the driving motor water circuit is started to pass through the driving motor 107, the cooling water is heated due to heat generated when the driving motor 107 operates. The four-way water valve 145 is now in a state that drives the motor 107 to open the motor three-way water valve 146. The state of the motor three-way water valve 146 is that the low-temperature radiator-to-motor electric water pump 141 is opened, and the four-way water valve 145-to-motor electric water pump 141 is closed. Therefore, the cooling water passes through the low-temperature radiator 140 after passing through the four-way water valve 145, the operation of the electric fan 106 is controlled according to the size of the cooling requirement, the electric fan 106 does not operate under the low-load condition and is naturally cooled, and the electric fan 106 operates under the high-load condition to cause outdoor air to flow, so that the cooling water exchanges heat with the outdoor air inside the low-temperature radiator 140 to return the cooling water to the motor electric water pump 141 through the low-temperature radiator 140, and the cooling water completes a cycle.
Example twenty one
Mode 21 (Cooling of driving motor + refrigeration of passenger compartment)
When the passenger compartment has a refrigeration requirement, the motor has a cooling requirement, and the battery has no cooling requirement, the cooling mode of the driving motor and the passenger compartment is entered. This Mode is achieved by increasing the operating state of Mode20 based on Mode1 (passenger compartment cooling). At this time, the rotation speed of the electric fan 106 is based on the Mode in which both the Mode1 and the Mode 21 require a large amount of power.
Example twenty two
Mode22 (Cooling of driving motor and cooling of battery water)
Under the condition of higher outdoor temperature, when the battery has a water cooling requirement and the motor has a cooling requirement, and the passenger cabin has no refrigerating and heating requirements, the driving motor cooling and battery water cooling mode is entered. Based on the working state of the Mode11 (driving the motor residual heat to heat the battery), the state of the motor three-way water valve 146 is changed to be that the low-temperature radiator-to-motor electric water pump 141 is opened, the four-way water valve 145-to-motor electric water pump 141 is closed, so that the cooling water returns to the motor electric water pump 141 through the low-temperature radiator 140, and the rest states are the same as the Mode 11. At this time, the rotational speed of the electric fan 106 is controlled to be in the Mode 15.
Example twenty three
Mode23 (Driving motor cooling + Battery active cooling)
Under the condition of higher outdoor temperature, when the battery has an active cooling requirement and the motor has a cooling requirement, and the passenger compartment has no refrigerating and heating requirements, the driving motor cooling and battery active cooling mode is entered. Based on Mode3 (battery active cooling), the Mode is realized by increasing the operating state of Mode20 based on the original operating state. At this time, the rotation speed of the electric fan 106 is based on the Mode in which both the Mode1 and the Mode 21 require a large amount of power.
Example twenty-four
Mode 24 (passenger compartment cooling + driving motor cooling + battery active cooling)
Under the condition of higher outdoor temperature, when the battery has an active cooling requirement and the motor has a cooling requirement, and the passenger compartment has a cooling requirement, the passenger compartment cooling mode, the driving motor cooling mode and the battery active cooling mode are entered. Based on the Mode2 (passenger compartment refrigeration + battery active cooling), the Mode is realized by increasing the working state of the Mode20 on the basis of the original working state. The rotation speed of the electric fan 106 at this time is based on the Mode in which both the Mode1 and the Mode 21 are required to be large.
Example twenty-five
Mode 25 (passenger compartment refrigeration + drive motor cooling + battery water cooling)
Under the condition of higher outdoor temperature, when the battery has a water cooling demand and the motor has a cooling demand, and the passenger compartment has a refrigeration demand, then the passenger compartment refrigeration + driving motor cooling + battery water cooling mode is entered. Based on the Mode1 (cooling of the passenger compartment), the Mode is realized by increasing the working state of the Mode22 on the basis of the original working state. At this time, the rotation speed of the electric fan 106 is based on the Mode in which both the Mode1 and the Mode22 require a large amount of power.
Example twenty-six
Mode 26 (drive motor cooling + passenger compartment PTC heating)
Under the condition of lower outdoor temperature, in the structure, when the driving motor has a cooling requirement and the passenger compartment has a heating requirement, the driving motor enters a driving motor cooling + passenger compartment PTC heating mode. Based on Mode4 (passenger compartment PTC heating), the Mode is realized by adding the operating state of Mode20 to the original operating state.
Example twenty-seven
Mode 27 (drive motor cooling + air source heat pump heating)
Under the condition of slightly low outdoor temperature, when the motor has a cooling requirement and the passenger compartment has a heating requirement and the condition of entering the air heat pump is met, the passenger compartment enters a heating mode of the air heat pump of the motor cooling and the passenger compartment. Based on the Mode5 (heating by an air source heat pump in a passenger compartment), the Mode is realized by increasing the working state of the Mode20 on the basis of the original working state.
Example twenty-eight
Referring to FIG. 14, Mode28 (Natural Cooling of the drive Motor)
Under the condition of lower external temperature, when the motor has a cooling demand and the indoor refrigeration, heating and battery do not have a cooling and heating demand, if the water temperature in the motor cooling water loop is lower than a certain target value, the motor is driven to enter a natural cooling mode, and conditions are created for the subsequent water source heat pump mode. In the structure, when the motor electric water pump 141 of the driving motor water circuit is started to pass through the driving motor 107, the cooling water is heated due to heat generated when the driving motor 107 operates. The four-way water valve 145 is now in a state that drives the motor 107 to open the motor three-way water valve 146. The state of the motor three-way water valve 146 is that the low-temperature radiator-to-motor electric water pump 141 is closed, and the four-way water valve 145-to-motor electric water pump 141 is opened. Therefore, the cooling water passes through the four-way water valve 145 and then directly returns to the motor-driven water pump 141 through the three-way valve 146, so that the cooling water completes one cycle.
Example twenty-nine
Mode 29 (driving motor natural cooling + air source heat pump heating passenger cabin)
Under the condition of lower external temperature, in the structure, when the motor has a cooling requirement and the passenger compartment has a heating requirement and meets the starting condition of the air heat pump, the heating mode of driving the motor to cool and the passenger compartment air source heat pump is entered. Based on the Mode5 (heating by an air source heat pump in a passenger compartment), the Mode is realized by increasing the working state of the Mode28 on the basis of the original working state.
Example thirty
Mode30 (heating water source heat pump driving motor cooling and passenger cabin)
Under the condition of lower external temperature, in the structure, when the motor has a cooling demand and the passenger cabin has a heating demand and meets the starting condition of the water heat pump, the water source heat pump enters the driving motor for cooling and the driving motor for the passenger cabin to heat. According to the judgment of the water temperature at the motor side, the cooling of the driving motor is divided into two modes of motor cooling and motor natural cooling, namely motor natural cooling and driving motor water source heat pump heating of the passenger compartment driving motor is completely consistent with Mode 6. Based on Mode6 (heating by the passenger compartment driving motor water source heat pump), in a driving motor water loop, the state of a motor three-way water valve 146 is changed into that a low-temperature radiator is opened to a motor electric water pump 141, and a four-way water valve 145 is closed to the motor electric water pump 141, so that cooling water passes through the low-temperature radiator 140 after passing through the four-way water valve 145, the operation of the electric fan 106 is controlled according to the size of a cooling demand, the electric fan 106 does not operate under a low-load condition and is naturally cooled, and the electric fan 106 operates under a high-load condition to cause outdoor air to flow, so that the cooling water exchanges heat with the outdoor air inside the low-temperature radiator 140 to return the cooling water to the motor electric water pump 141 through the low-temperature radiator 140, and the cooling water completes a cycle.
Example thirty one
Mode 31 (drive motor cooling + battery active cooling + passenger compartment PTC heating)
Under the condition of lower external temperature, when the battery and the driving motor both have cooling requirements, the battery meets the starting condition for active cooling, and the passenger compartment has heating requirements and does not meet the starting condition of the water source heat pump, the driving motor cooling + battery active cooling + passenger compartment PTC heating mode is entered.
Example thirty-two
Based on Mode4 (passenger compartment PTC heating), the Mode is realized by adding the operating states of Mode3 and Mode23 to the original operating state.
Example thirty-three
Mode33 (heating water source heat pump driving motor cooling driving motor + battery active cooling + passenger cabin)
Under the condition of lower external temperature, when the battery and the driving motor both have cooling requirements, the battery meets the starting condition for active cooling, and the passenger compartment has a heating requirement, the water source heat pump heating mode of the driving motor cooling + battery active cooling + passenger compartment driving motor is entered. Based on the Mode6 (heating by a water source heat pump of a passenger cabin driving motor), the Mode is realized by increasing the working state of the Mode30 on the basis of the original working state.
Example thirty-four
Mode34 (drive motor cooling + battery active cooling + passenger cabin double heat source heat pump heating)
Under the condition of lower external temperature, when the battery and the driving motor both have cooling requirements, the battery is actively cooled to meet the starting condition, the passenger compartment has heating requirements, and the entering condition of the double-heat-source heat pump heating mode is met, the driving motor cooling mode, the battery active cooling mode and the passenger compartment double-heat-source heat pump heating mode are entered. Based on the Mode7 (heating by a double heat source heat pump in a passenger compartment), the Mode is realized by increasing the working state of the Mode30 on the basis of the original working state.
Example thirty-five
Referring to fig. 15 and 16, Mode35 (driving motor cooling + battery active cooling + passenger compartment dehumidification)
Under the condition of lower external temperature, when the battery and the driving motor both have cooling requirements, the battery meets the starting condition for active cooling, and the passenger compartment has heating requirements and simultaneously meets the starting condition of the air heat pump, the heating mode of cooling the driving motor, actively cooling the battery and heating the passenger compartment by the air heat pump is entered. After the gas refrigerant is compressed by the hollow pressure regulating compressor 110 and enters the water-cooled condenser 131, the refrigerant and the hot air water loop have certain heat exchange because the hot air electric water pump 143 in the hot air core water loop is opened, and two conditions of supercooling or overheating exist. If the overheating occurs, the operation of the valve set 130 is: the heat pump three-way valve 133 is communicated with the outdoor condenser 111 from the water-cooled condenser 131, is communicated with the gas-liquid separator 135 from the water-cooled condenser, is closed, the heat pump electronic expansion valve 134 is closed, the refrigeration two-way valve 137 is communicated, the heat pump two-way valve 132 is closed, the gas-liquid separator three-way valve 136 is communicated from the air-conditioning evaporator core 103 to the air-conditioning compressor 110, and is closed from the air-conditioning evaporator core 103 to the gas-liquid separator 135. Since the heat pump two-way valve 132 is closed, the refrigerant passes through the heat pump three-way valve 133 and then enters the outdoor condenser 111, and the refrigerant is condensed by heat exchange with the outdoor air inside the outdoor condenser 111 due to the outdoor air flow caused by the electric fan 106. Since the heat pump electronic expansion valve 134, the heat pump two-way valve 132, and the Chiller electronic expansion valve 121 are closed, the liquid refrigerant can only enter the air-conditioning expansion valve 102 through the refrigeration two-way valve 137 for throttling. If the valve block 130 is too cold, the operation of the valve block 130 is: at this time, the refrigeration two-way valve 137 is closed, the heat pump electronic expansion valve 134 is closed, the heat pump three-way valve 133 is closed from the water-cooled condenser 131 to the gas-liquid separator 135 and the outdoor condenser 111, the heat pump two-way valve 132 is open, the gas-liquid separator three-way valve 136 is open from the air-conditioning evaporator core 103 to the air-conditioning compressor 110, and is closed from the air-conditioning evaporator core 103 to the gas-liquid separator 135. Because the refrigeration two-way valve 137 is closed, the heat pump three-way valve 133 is closed, and one path of liquid refrigerant flows through the air flow in the air conditioner 100 caused by the blower 101, and exchanges heat with the indoor air in the air conditioner evaporator core 103, so that the temperature of the indoor air is reduced, moisture in the indoor air is condensed and separated out, a dehumidification effect is achieved, and the refrigerant absorbs heat and is converted into a complete gas state. The other path of the refrigerant enters a battery Chiller122 through a Chiller electronic expansion valve 121 in a throttling mode, heat exchange is carried out between the other path of the refrigerant and cooling liquid of a battery water loop inside the battery Chiller122, the temperature of the cooling water is reduced, and the refrigerant absorbs heat and is converted into a complete gas state. The two refrigerants are merged and then return to the air conditioner compressor 110 through the gas-liquid separator three-way valve 136, so that a refrigeration cycle of the air conditioner loop is completed. In the warm air core water loop, the warm air electric water pump 143 is started, so that the heated cooling water enters the water-cooled condenser 131, and at this time, the heat exchange of the water-cooled condenser 131 may be temperature rise or temperature reduction for the cooling liquid. And cooling water enters the high-pressure PTC139, if the water temperature does not meet the thermal load requirement, the high-pressure PTC139 is started at the moment, electric energy is converted into heat energy to heat the cooling water, and if the water temperature meets the thermal load requirement, the high-pressure PTC139 is not started at the moment, and the cooling water is not reheated. In both cases, the cooling water finally enters the air conditioning heater core 104. The air in the air conditioner 100 flows by the blower 101, exchanges heat with the indoor air inside the air conditioning core 104, raises the temperature of the indoor air, and flows out from the outlet 105 into the cab. At this time, the warm air three-way water valve 148 is in a state of not communicating with the water heat exchanger 144. The cooling water completes a cycle after passing through the warm air three-way water valve 148, and enters the expansion water tank 150 if the cooling water has air. Under the battery coolant loop, the battery electric water pump 142 is started to circulate the coolant, the coolant with the temperature reduced after passing through the battery Chiller122 enters the power battery 108, and the coolant returns to the battery Chiller122 after passing through the water-water heat exchanger 144, and at this time, the water-water heat exchanger 144 does not exchange heat. The four-way water valve 145 is in a state that the battery cooling circuit is unobstructed, and the cooling water passing through the battery Chiller122 returns to the battery electric water pump 142 through the four-way water valve 145. If there is air in the cooling water, the air enters the expansion tank 151. When the motor-driven water pump 141 of the driving motor water circuit is started to pass through the driving motor 107, the cooling water is heated due to heat generated when the driving motor 107 operates. The four-way water valve 145 is now in a state that drives the motor 107 to open the motor three-way water valve 146. The state of the motor three-way water valve 146 is that the low-temperature radiator-to-motor electric water pump 141 is opened, and the four-way water valve 145-to-motor electric water pump 141 is closed. Therefore, the cooling water passes through the low-temperature radiator 140 after passing through the four-way water valve 145, the operation of the electric fan 106 is controlled according to the size of the cooling requirement, the electric fan 106 does not operate under the low-load condition and is naturally cooled, and the electric fan 106 operates under the high-load condition to cause outdoor air to flow, so that the cooling water exchanges heat with the outdoor air inside the low-temperature radiator 140 to return the cooling water to the motor electric water pump 141 through the low-temperature radiator 140, and the cooling water completes a cycle. If there is air in the cooling water, the air enters the expansion tank 152.
Fig. 17 and 18 are schematic diagrams illustrating a variation of the scheme implemented by using a five-way valve or a six-way valve through waterway integration optimization; on the basis of the scheme, the five-way valve or the six-way valve is adopted to realize the deformation of the scheme through the integrated optimization of the water path, and the method also needs to be regarded as the protection scope of the invention.
Fig. 19 is a functional schematic diagram of a double-zone air conditioner optimized by adding a three-way water valve 149. On the basis of the scheme, the function of the double-area air conditioner is optimized by simply adding the three-way water valve 149, and the independent three-way water valve 149 and related pipelines can be selected as optional parts without conflict with other water valves and functions. The water-cooling air heater is matched with a special double-side water inlet warm air core body to realize different temperatures at two ends and save electric energy. It should also be regarded as a simple modification of the patent, and should equally be regarded as the scope of protection of the invention.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims. And those not described in detail in this specification are well within the skill of those in the art.
Claims (10)
1. The utility model provides a new energy automobile thermal management system which characterized in that: comprises a cooling water system and an air-conditioning refrigerant system;
the air conditioning refrigerant system includes: an air conditioner compressor (110), an outdoor condenser (111) and a valve group (130);
the valve bank (130) comprises a water-cooled condenser (131), a gas-liquid separator (135), a heat pump two-way valve (132), a refrigeration two-way valve (137) and a heat pump three-way valve (133); the gas-liquid separator three-way valve (136) realizes the heat exchange of the refrigerant in the outdoor condenser (111) in the refrigeration and heating modes;
the refrigerant passes through an air conditioner compressor (110) and then is output to a water-cooled condenser (131) in a valve bank (130) or is directly output to an outdoor condenser (111);
the refrigeration two-way valve (137) is opened in the refrigeration mode and closed in the heating mode, so that the liquid refrigerant passing through the outdoor condenser (111) passes through, and enters the air-conditioning expansion valve (102) and the air-conditioning evaporator core (103) for evaporation and heat absorption;
the heat pump two-way valve (132) is opened in a heat pump heating mode and closed in a cooling mode or a PTC heating mode, so that liquid refrigerant passing through the water-cooled condenser (131) passes through the heat pump electronic expansion valve (134) and the condenser electronic expansion valve (121) for throttling, and evaporation and heat absorption in the outdoor condenser (111) and the battery Chiiler (122) are realized;
the heat pump three-way valve (133) functions in a cooling mode to allow the gaseous refrigerant to enter the inlet end of the outdoor condenser (111) from the outlet end of the water-cooled condenser (131), and in a heating mode to allow the gaseous refrigerant, which has absorbed heat from the air and flows out of the inlet end of the outdoor condenser (111), to enter the gas-liquid separator (135).
2. The new energy automobile thermal management system according to claim 1, characterized in that:
the outdoor condenser (111) has two refrigeration and heating working modes, heat of the refrigerant is transferred to outdoor air during refrigeration and the refrigerant is condensed, and the throttled liquid refrigerant can fully absorb the heat in the air for subsequent heat release during heating.
3. The new energy automobile thermal management system according to claim 2, characterized in that:
the outdoor condenser (111) is provided with 2 outlets and respectively uses the refrigeration and heating working modes. If only the cooling mode exists, the outlet of the heating mode is physically closed, so that the generalization is realized.
4. The thermal management system of the new energy automobile according to claim 3, characterized in that:
further comprising an electric fan (106); the electric fan (106) works by receiving the control signal, and introduces outdoor air to the surface of the outdoor condenser (111) to realize heat exchange of the outdoor condenser (111).
5. The thermal management system of the new energy automobile according to claim 4, characterized in that:
the device is characterized by further comprising a Chiller electronic expansion valve (121), wherein the Chiller electronic expansion valve (121) and a battery Chiller (122) are of an integrated structure, and through throttling evaporation, evaporation and heat absorption of a refrigerant are achieved, so that the temperature of a water side is reduced, and the energy of the refrigerant side is moved;
the function of the heat pump electronic expansion valve (134) is to throttle and depressurize the liquid refrigerant passing through the water-cooled condenser (131) during heating, so that the refrigerant can enter the outdoor condenser (111) from the middle outlet of the outdoor condenser (111) to exchange heat with outdoor air.
6. The thermal management system of the new energy automobile according to claim 5, characterized in that:
the air conditioner expansion valve (102) and the air conditioner evaporator core body (103) realize evaporation and heat absorption of the refrigerant through throttling evaporation, and transfer heat inside the passenger compartment to the air conditioning system to realize cooling.
7. The new energy automobile heat management system according to claim 6, characterized in that:
the cooling water system comprises a driving motor loop, a power battery loop and a warm air loop;
the drive motor circuit includes: a low-temperature radiator (140) and a four-way water valve (145);
the power battery circuit comprises: a water-to-water heat exchanger (144);
the warm air circuit comprises: a three-way water valve (146; 147; 148);
the three-way water valve guides the warm air water loop into a water-water heat exchanger (144) for exchanging the energy of the warm air core loop with the heat of the power battery loop; and the two ends of the warm air core loop are connected so that cooling water does not pass through the water-water heat exchanger.
8. The thermal management system of the new energy automobile according to claim 7, characterized in that:
the four-way water valve (145) is used for communicating a driving motor loop with a power battery loop; the power battery loop and the driving motor loop are connected in series and communicated, so that the power battery loop and the driving motor loop are mutually independent.
The motor three-way water valve (146) is used for controlling whether the driving motor loop passes through the low-temperature radiator (140) or not; the four-way water valve (145) and the motor three-way water valve (146) are integrated in a physical structure;
the battery three-way water valve (147) is used for constructing a small loop in a power battery loop, cooling water passing through a battery Chiller (122) is separated out, and is integrated with a water channel of a driving motor loop through the combined action of the battery three-way water valve (145); the three-way water valve (146; 147) and the four-way water valve (145) can be physically integrated integrally and respectively.
The warm air three-way water valve (148) is used for constructing a small loop in an air conditioning warm air loop and guiding cooling water passing through the high-pressure PTC (139) into the water-water heat exchanger (144).
9. The new energy automobile thermal management system according to any one of claims 1 to 8, characterized in that:
the three-way water valve and the four-way water valve are integrated into a five-way water valve or a six-way water valve.
10. The new energy automobile thermal management system according to any one of claims 1 to 8, characterized in that:
the function of the double-area air conditioner is optimized by adding a three-way water valve (149) of the double-area air conditioner; the double-area air-conditioning three-way water valve (149) is connected with the driver side of the air-conditioning warm air core body (104) and the high-voltage PTC (139).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210543269.9A CN114801651B (en) | 2022-05-18 | 2022-05-18 | New energy automobile thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210543269.9A CN114801651B (en) | 2022-05-18 | 2022-05-18 | New energy automobile thermal management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114801651A true CN114801651A (en) | 2022-07-29 |
| CN114801651B CN114801651B (en) | 2024-08-06 |
Family
ID=82515287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210543269.9A Active CN114801651B (en) | 2022-05-18 | 2022-05-18 | New energy automobile thermal management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114801651B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115534620A (en) * | 2022-09-23 | 2022-12-30 | 智己汽车科技有限公司 | Electric automobile heat management system, control method thereof and electric automobile |
| CN115871413A (en) * | 2022-12-29 | 2023-03-31 | 中国重汽集团济南动力有限公司 | Whole vehicle thermal management system of electric commercial vehicle and pure electric vehicle |
| WO2024086964A1 (en) * | 2022-10-24 | 2024-05-02 | 宁德时代新能源科技股份有限公司 | Heat pump air conditioner for electric automobile, heat pump air conditioner control method and apparatus, and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001246929A (en) * | 2000-03-07 | 2001-09-11 | Mitsubishi Heavy Ind Ltd | Air conditioner for vehicle |
| CN110154683A (en) * | 2019-05-27 | 2019-08-23 | 珠海格力电器股份有限公司 | Thermal management system and new energy automobile thereof |
| CN110588283A (en) * | 2019-09-19 | 2019-12-20 | 一汽轿车股份有限公司 | Cooling system of electric vehicle |
| WO2020080760A1 (en) * | 2018-10-19 | 2020-04-23 | 한온시스템 주식회사 | Heat management system |
| CN112339527A (en) * | 2020-12-01 | 2021-02-09 | 南京协众汽车空调集团有限公司 | New energy automobile thermal management system and working method thereof |
-
2022
- 2022-05-18 CN CN202210543269.9A patent/CN114801651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001246929A (en) * | 2000-03-07 | 2001-09-11 | Mitsubishi Heavy Ind Ltd | Air conditioner for vehicle |
| WO2020080760A1 (en) * | 2018-10-19 | 2020-04-23 | 한온시스템 주식회사 | Heat management system |
| CN110154683A (en) * | 2019-05-27 | 2019-08-23 | 珠海格力电器股份有限公司 | Thermal management system and new energy automobile thereof |
| CN110588283A (en) * | 2019-09-19 | 2019-12-20 | 一汽轿车股份有限公司 | Cooling system of electric vehicle |
| CN112339527A (en) * | 2020-12-01 | 2021-02-09 | 南京协众汽车空调集团有限公司 | New energy automobile thermal management system and working method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐俊芳;牟连嵩;刘双喜;: "国内外典型纯电动汽车空调系统方案解析", 汽车与配件, no. 32, 20 November 2017 (2017-11-20) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115534620A (en) * | 2022-09-23 | 2022-12-30 | 智己汽车科技有限公司 | Electric automobile heat management system, control method thereof and electric automobile |
| CN115534620B (en) * | 2022-09-23 | 2024-05-14 | 智己汽车科技有限公司 | Electric automobile heat management system, control method thereof and electric automobile |
| WO2024086964A1 (en) * | 2022-10-24 | 2024-05-02 | 宁德时代新能源科技股份有限公司 | Heat pump air conditioner for electric automobile, heat pump air conditioner control method and apparatus, and vehicle |
| CN115871413A (en) * | 2022-12-29 | 2023-03-31 | 中国重汽集团济南动力有限公司 | Whole vehicle thermal management system of electric commercial vehicle and pure electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114801651B (en) | 2024-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110525169B (en) | Integrated passenger cabin heat pump air conditioner and three-electric heating management system for pure electric vehicle | |
| CN110525168B (en) | New energy automobile secondary circuit passenger cabin and battery motor electric control heat management system | |
| CN114801651B (en) | New energy automobile thermal management system | |
| CN114056052B (en) | Electric automobile thermal management loop, control method and pure electric vehicle | |
| CN106585414A (en) | Intelligent multi-loop electric automobile cooling system | |
| CN106585323B (en) | Working mode of new energy automobile air conditioning system with quick defrosting and demisting functions | |
| CN110588280A (en) | New energy automobile thermal management system integrating three thermal management functions and waste heat recovery function | |
| CN113173050B (en) | Thermal management system | |
| CN110588279A (en) | Whole-vehicle thermal management system with waste heat utilization function for new energy automobile | |
| CN115042587B (en) | Whole car thermal management system | |
| CN113173049B (en) | Thermal management system | |
| CN114683803B (en) | Heat pump-based heat management system for pure electric vehicle and control method thereof | |
| CN113432340A (en) | Multi-heat-source heat pump type electric automobile heat management system | |
| CN110077194B (en) | Electric automobile based on heat pump technology and thermal management system thereof | |
| CN215153791U (en) | Thermal management system and electric automobile | |
| CN212289440U (en) | Thermal management system and electric vehicle | |
| CN212289436U (en) | Thermal management system and electric automobile | |
| CN212194994U (en) | Vehicle thermal management system | |
| CN109910544B (en) | Electric automobile thermal management system | |
| CN112046237A (en) | Thermal management system, control method and electric vehicle | |
| CN216886155U (en) | Automobile heat management system based on three-medium heat exchanger, air conditioning system and automobile | |
| CN113895205B (en) | Take waste heat recovery's economic heat pump system | |
| CN214984718U (en) | New energy automobile heat rationalization utilizes system | |
| CN113771583B (en) | Heat pump air conditioning system with intermediate heat exchanger for integrated power battery thermal management | |
| CN216048481U (en) | Multi-heat-source heat pump type electric automobile heat management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 130012 no.4888, Yushan Road, Changchun high tech Development Zone, Jilin Province Patentee after: FAW Besturn Automotive Co.,Ltd. Country or region after: China Address before: No. 4888, Yushan Road, Changchun high tech Industrial Development Zone, Changchun City, Jilin Province Patentee before: FAW Pentium Car Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |