CN114872515A

CN114872515A - Multifunctional integrated heat management system and electric equipment

Info

Publication number: CN114872515A
Application number: CN202210727118.9A
Authority: CN
Inventors: 林务田; 万星荣
Original assignee: GAC Aion New Energy Automobile Co Ltd
Current assignee: GAC Aion New Energy Automobile Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-08-09

Abstract

The application provides a multifunctional integrated heat management system and electric equipment, and relates to the technical field of heat management systems. Comprises a switching mechanism which is provided with a first multi-way valve and a second multi-way valve; a condenser of the air conditioning system is respectively connected with the first port and the first connecting port through a first water pump, and a cooler is respectively connected with the second port and the fourth port; a heater of the warm air system is respectively connected with the condenser and the warm air core body, and the warm air core body is connected with the second connector; an electric driving device of the electric driving cooling system is respectively connected with a second water pump, a radiator and a third port, the second water pump is respectively connected with the cooler and the warm air core body, and the radiator is connected with the middle port; and a power battery of the battery temperature control system is respectively connected with a third water pump, a fourth connector and a cooler, and the third water pump is respectively connected with a fifth port and a third connector. The coupling of each system can be realized, and the cooling, heating, temperature equalizing or heat preservation functions of each system are met.

Description

Multifunctional integrated heat management system and electric equipment

Technical Field

The application relates to the technical field of heat management systems, in particular to a multifunctional integrated heat management system and electric equipment.

Background

Electric vehicle thermal management systems can be divided into two categories: 1) the water loop comprises an electric drive cooling system, a power battery temperature control system and a passenger cabin heating system; 2) the refrigerant system is an air conditioning system, wherein if the air conditioning system adopts a heat pump scheme, the water heating system can be partially or even completely replaced by the heat pump system.

For the water cooling system, the traditional scheme is to adopt a plurality of independent water cooling systems, and all the systems are not coupled; in recent years, in order to realize energy conservation of a heat management system of a whole vehicle, all systems are usually communicated through a water cooling system, and at present, more water valves and complex water pipes need to be configured, so that the water cooling system is complex and has higher cost.

Disclosure of Invention

The application aims to provide a multifunctional integrated heat management system and electric equipment, which are beneficial to coupling among systems and meet the cooling, heating, temperature equalizing or heat preservation functions of the systems.

In order to achieve the purpose, the following technical scheme is adopted in the application:

in a first aspect, the present application provides a multifunctional integrated thermal management system comprising: the switching mechanism is provided with a first multi-way valve and a second multi-way valve, the first multi-way valve is provided with a first port, a second port, a third port, a fourth port, a fifth port and a middle port, and the second multi-way valve is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port; the air conditioning system is provided with a compressor, a condenser, an evaporator, a cooler and a first water pump, wherein one end of the compressor is connected with the condenser, the other end of the compressor is respectively connected with the evaporator and the cooler, the condenser is respectively connected with the first port and the first connecting port through the first water pump, the evaporator is connected with the condenser, and the cooler is respectively connected with the second port and the fourth port; the warm air system is provided with a heater and a warm air core body, one end of the heater is connected with the condenser, the other end of the heater is connected with the warm air core body, and the warm air core body is connected with the second connecting port; the electric drive cooling system is provided with an electric drive device, a radiator and a second water pump, one end of the electric drive device is connected with the second water pump, the other end of the electric drive device is respectively connected with the radiator and the third port, the second water pump is respectively connected with the cooler and the warm air core body, and the radiator is connected with the middle port; the battery temperature control system is provided with a power battery and a third water pump, one end of the power battery is connected with the third water pump, the other end of the power battery is respectively connected with the fourth connector and the cooler, and the third water pump is respectively connected with the fifth port and the third connector.

In the implementation process, the switching mechanism is provided with a first multi-way valve and a second multi-way valve, and the air conditioning system, the warm air system, the electrically-driven cooling system and the battery temperature control system are respectively connected with the switching mechanism, so that the flow direction of the cooling liquid is changed by switching the first multi-way valve and the second multi-way valve, the coupling of the air conditioning system, the warm air system, the electrically-driven cooling system and the battery temperature control system can be realized, and the cooling, heating, temperature equalizing or heat preservation functions of all the systems are met.

In some embodiments, the air conditioning system further comprises a parallel pipeline, wherein the parallel pipeline comprises a first branch and a second branch, the first branch is provided with the evaporator, and the second branch is connected between the condenser and the cooler.

In the process of realizing, the parallel pipeline is used for connecting the evaporator with the condenser and connecting the cooler with the condenser, so that the communication of the first branch and/or the communication of the second branch can be realized under various environmental temperatures and different driving working conditions, the power battery and the driving device are at proper working temperature, the service life of the power battery and the driving device is prolonged, and meanwhile, the cost can be reduced on the premise of realizing energy flow.

In some embodiments, the air conditioning system further has a first expansion valve disposed on the first branch, and the first expansion valve is located between the evaporator and the condenser.

In the implementation process, the first expansion valve is arranged on the first branch, so that the switching of the on-off of the first branch can be controlled, and the decompression expansion of the cooling liquid can be actively controlled.

In some embodiments, the air conditioning system further has a second expansion valve disposed on the second branch, and the second expansion valve is located between the condenser and the cooler.

In the implementation process, the second expansion valve is arranged on the second branch, so that the switching of the on-off of the second branch can be controlled, and the decompression expansion of the cooling liquid can be actively controlled.

In some embodiments, the air conditioning system further comprises a liquid reservoir connected to the line between the condenser and the parallel line.

In the implementation process, the liquid storage device can be used for storing and filling cooling liquid, accommodating overflowed air in the air conditioning system and adjusting the limit pressure of the air conditioning system, so that the control of the air conditioning system is realized.

In some embodiments, the electrically-driven cooling system further comprises a power supply device, the power supply device is connected to a pipeline between the electric driving device and the second water pump, and the power supply device can be always at a proper working temperature through switching of the first multi-way valve and the second multi-way valve, so that the service life of the power supply device is prolonged.

In some embodiments, the warm air system further comprises a first one-way valve, and the first one-way valve is connected to a pipeline between the warm air core and the second water pump and can ensure that the cooling liquid only flows in one direction.

In some embodiments, the battery temperature control system further comprises a second one-way valve, and the second one-way valve is connected to a pipeline between the power battery and the cooler and can ensure that the cooling liquid only flows in one direction.

In some embodiments, the first multi-way valve comprises a four-position, six-way valve and the second multi-way valve comprises a three-position, four-way valve.

In a second aspect, the present application further provides a powered device comprising a multifunctional integrated thermal management system as described in any of the above.

The electric device provided in the second aspect of the present application includes the multifunctional integrated thermal management system in the technical solution of the first aspect, so that all technical effects of the above embodiments are achieved, and details are not described herein.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for a user of ordinary skill in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic diagram of a multifunctional integrated thermal management system according to an embodiment of the present disclosure.

FIG. 2 is a schematic diagram of a first mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 3 is a schematic diagram of a second mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 4 is a schematic diagram of a third mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 5 is a schematic diagram of a fourth mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 6 is a schematic diagram of a fifth mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 7 is a schematic diagram of a sixth mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 8 is a schematic diagram of a seventh mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 9 is a schematic diagram of an eighth mode of a multifunctional integrated thermal management system according to an embodiment of the present application.

FIG. 10 is a schematic diagram of a ninth mode of a multifunctional integrated thermal management system according to an embodiment of the disclosure

FIG. 11 is a schematic diagram of a tenth mode of a multifunctional integrated thermal management system according to an embodiment of the disclosure.

Fig. 12 is a schematic diagram illustrating an eleventh mode of a multifunctional integrated thermal management system according to an embodiment of the disclosure.

FIG. 13 is a schematic diagram of a twelfth mode of a multifunctional integrated thermal management system according to an embodiment of the disclosure.

FIG. 14 is a schematic diagram of a thirteenth mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 15 is a schematic diagram of a fourteenth mode of a multifunctional integrated thermal management system disclosed in an embodiment of the present application.

FIG. 16 is a schematic diagram illustrating a fifteenth mode of a multifunctional integrated thermal management system according to an embodiment of the present application.

Reference numerals

1. A compressor; 2. a condenser; 3. a liquid reservoir; 4. a first expansion valve; 5. an evaporator; 6. a second expansion valve; 7. a cooler; 8. a second water pump; 9. a power supply device; 10. an electric drive device; 11. a heat sink; 12. a first multi-way valve; 121. a first port; 122. a second port; 123. a third port; 124. a fourth port; 125. a fifth port; 126. an intermediate port; 13. a first water pump; 14. a heater; 15. a warm air core body; 16. a first check valve; 17. a third water pump; 18. a power battery; 19. a second multi-way valve; 191. a first connection port; 192. a second connection port; 193. a third connection port; 194. a fourth connection port; 20. a second one-way valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a user of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to a user of ordinary skill in the art.

Examples

In order to reduce the energy consumption for heating the passenger compartment and heating the battery at low temperature, a heat pump system has been developed, which needs to switch between a cooling mode and a heating mode, and needs to be able to change the flow direction of the coolant, so that the coolant loop is complicated, and a large number of coolant valves (such as a switch valve, a three-way valve, an electronic expansion valve, etc.) and complicated coolant pipes need to be configured, which results in a complicated heat pump system and higher cost, thereby limiting the popularization and application of the heat pump system.

As shown in fig. 1, fig. 1 is a schematic diagram of a multifunctional integrated thermal management system disclosed in the embodiment of the present application; in a first aspect, the present application provides a multifunctional integrated thermal management system comprising: switching mechanism, air conditioning system, warm braw system, electric drive cooling system and battery temperature control system, air conditioning system the warm braw system the electric drive cooling system reaches battery temperature control system passes through the switching mechanism carries out the coupling, and changes the flow direction of coolant liquid through the switching of switching mechanism, can make the energy of each system obtain make full use of, promotes the heat energy efficiency of whole consumer, in the electric automobile field, can improve electric automobile's continuation of the journey mileage.

Specifically, the switching mechanism includes a first multi-way valve 12 and a second multi-way valve 19, the first multi-way valve 12 includes a first port 121, a second port 122, a third port 123, a fourth port 124, a fifth port 125, and an intermediate port 126, and the second multi-way valve 19 includes a first connection port 191, a second connection port 192, a third connection port 193, and a fourth connection port 194; an air conditioning system having a compressor 1, a condenser 2, an evaporator 5, a cooler 7, and a first water pump 13, wherein one end of the compressor 1 is connected to the condenser 2, the other end of the compressor 1 is connected to the evaporator 5 and the cooler 7, the condenser 2 is connected to the first port 121 and the first connection port 191 through the first water pump 13, the evaporator 5 is connected to the condenser 2, and the cooler 7 is connected to the second port 122 and the fourth port 124; a warm air system having a heater 14 and a warm air core 15, wherein one end of the heater 14 is connected to the condenser 2, the other end of the heater 14 is connected to the warm air core 15, and the warm air core 15 is connected to the second connection port 192; an electrically driven cooling system having an electric drive device 10, a radiator 11, and a second water pump 8, wherein one end of the electric drive device 10 is connected to the second water pump 8, the other end of the electric drive device 10 is connected to the radiator 11 and the third port 123, respectively, the second water pump 8 is connected to the cooler 7 and the warm air core 15, respectively, and the radiator 11 is connected to the intermediate port 126; the battery temperature control system includes a power battery 18 and a third water pump 17, one end of the power battery 18 is connected to the third water pump 17, the other end of the power battery 18 is connected to the fourth connection port 194 and the cooler 7, and the third water pump 17 is connected to the fifth connection port 125 and the third connection port 193.

Illustratively, the first multi-way valve 12 comprises a four-position six-way valve, the second multi-way valve 19 comprises a three-position four-way valve, a first valve core is arranged inside the first multi-way valve 12 and can be controlled to rotate, so that the first multi-way valve 12 is switched, and a second valve core is arranged inside the second multi-way valve 19 and can be rotated, so that the second multi-way valve 19 is switched.

The compressor 1 is used for compressing a refrigerant and pushing the refrigerant to flow in an air conditioning system, and is a core structure of the air conditioning system; the condenser 2 belongs to one type of heat exchanger and can convert gas or vapor into liquid; the physical process of converting liquid state into gas state in the evaporator 5; the cooler 7 is typically a water or air coolant to remove heat; the heater 14 includes, but is not limited to, a PTC heating device, which is formed of a PTC (positive Temperature coefficient) ceramic heating element, an aluminum tube, and the like.

In the implementation process, the switching mechanism is provided with a first multi-way valve 12 and a second multi-way valve 19, the air conditioning system, the warm air system, the electrically-driven cooling system and the battery temperature control system are respectively connected with the switching mechanism, so that the flow direction of the cooling liquid is changed by switching the first multi-way valve 12 and the second multi-way valve 19, the coupling of the air conditioning system, the warm air system, the electrically-driven cooling system and the battery temperature control system can be realized, and the cooling, heating, temperature equalizing or heat preserving functions of all the systems are met.

In some embodiments, the air conditioning system further has a parallel circuit including a first branch on which the evaporator 5 is disposed and a second branch connected between the condenser 2 and the cooler 7.

In the implementation process, the parallel pipeline is used for connecting the evaporator 5 with the condenser 2 and connecting the cooler 7 with the condenser 2, so that the communication of the first branch and/or the communication of the second branch can be realized under various environmental temperatures and different driving working conditions, the power battery 18 and the driving device are at proper working temperatures, the service life of the power battery is prolonged, and meanwhile, the cost can be reduced on the premise of realizing energy flow.

In some embodiments, the air conditioning system further has a first expansion valve 4, the first expansion valve 4 includes, but is not limited to, a first electronic expansion valve, the first expansion valve 4 is disposed on the first branch, and the first expansion valve 4 is located between the evaporator 5 and the condenser 2.

In the implementation process, the first expansion valve 4 is arranged in the first branch, and can be used for controlling the switching of the on-off of the first branch and actively controlling the decompression and expansion of the cooling liquid.

In some embodiments, the air conditioning system further has a second expansion valve 6, the second expansion valve 6 includes, but is not limited to, a second electronic expansion valve, the second expansion valve 6 is disposed on the second branch, and the second expansion valve 6 is located between the condenser 2 and the cooler 7.

In the implementation process, the second expansion valve 6 is arranged in the second branch, and can be used for controlling the switching of the on-off of the second branch and actively controlling the decompression and expansion of the cooling liquid.

In some embodiments, the air conditioning system further comprises a liquid receiver 3, the liquid receiver 3 being connected to the line between the condenser 2 and the parallel line.

In the implementation process, the liquid reservoir 3 can be used for storing and filling the cooling liquid, accommodating overflowed air in the air conditioning system and adjusting the limit pressure of the air conditioning system, so as to realize the control of the air conditioning system.

In some embodiments, the electrically driven cooling system further includes a power supply device 9, and the power supply device 9 is connected to a pipeline between the electric driving device 10 and the second water pump 8, so that the power supply device 9 can be always at a proper working temperature through switching of the first multi-way valve 12 and the second multi-way valve 19, and the service life of the power supply device is prolonged.

In some embodiments, the warm air system further comprises a first check valve 16, and the first check valve 16 is connected to a pipeline between the warm air core 15 and the second water pump 8, so that the coolant can only flow in one direction.

In some embodiments, the battery temperature control system further comprises a second check valve 20, and the second check valve 20 is connected to the pipeline between the power battery 18 and the cooler 7, so as to ensure that the cooling liquid only flows in one direction.

In a second aspect, the present application further provides a powered device comprising a multifunctional integrated thermal management system as described in any of the above. For example, the electric device may be a common electric Vehicle/Electric Vehicle (EV), a pure electric Vehicle (PV/BEV), a Hybrid Electric Vehicle (HEV), an extended range electric Vehicle (REEV), a plug-in hybrid electric Vehicle (PHEV), a New Energy Vehicle (New Energy Vehicle), an electric bus, an electric motorcycle, etc., wherein the multifunctional integrated thermal management system may be applied to the fields of home appliances, buildings, aircrafts, ships, etc., in addition to the Vehicle.

As shown in fig. 2, the first mode is a mode in which the air conditioning system performs cooling, and the power supply device 9, the electric drive device, and the power battery 18 are cooled; the specific process comprises the following steps: under the high-temperature environment condition, when the power supply device 9 or the electric drive device 10 has a cooling demand, the second water pump 8 (and the first water pump 13) works, the cooling liquid sequentially flows through the power supply device 9, the electric drive device 10, the radiator 11 (heat exchange), the middle port 126 and the first port 121 of the four-position six-way valve, the first water pump 13, the condenser 2 (heat exchange), the heater 14 (out of work), the warm air core body 15 (without heat exchange) and the first one-way valve 16, and then returns to the second water pump 8, the heat of the power supply device 9, the electric drive device 10 and the condenser 2 is brought to the radiator 11 by the cooling liquid to exchange heat with the air outside the vehicle, so that the purposes of cooling and temperature reduction are achieved. When the power battery 18 has a cooling request, the third water pump 17 works, the cooling liquid flows through the power battery 18, the second check valve 20, the cooler 7 (heat exchange) and the fourth port 124 of the four-position six-way valve in sequence and then returns to the third water pump 17, and the heat of the power battery 18 is taken away by the cooler 7 to achieve the purpose of cooling. When the passenger compartment of the vehicle has a cooling demand and the power battery 18 has a cooling request, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange) and the liquid receiver 3, the refrigerant is divided into two paths at the moment, the first path returns to the compressor 1 through the first expansion valve 4 (working) and the evaporator 5 (heat exchange), the cooling of the passenger compartment is realized through the evaporator 5, the second path returns to the compressor 1 through the second expansion valve 6 (working) and the cooler 7 (heat exchange), the cooling of the power battery 18 is realized through the cooler 7, and then another heat exchange cycle is formed.

As shown in fig. 3, the second mode is a mode in which the air conditioning system cools the passenger compartment, the power supply unit 9 and the electric drive unit 10 are cooled, and the power battery 18 is equalized in temperature; the specific process comprises the following steps: under the high-temperature environment condition, when the power supply device 9 or the electric drive device 10 has a cooling demand, the second water pump 8 (and the first water pump 13) works, the cooling liquid sequentially flows through the power supply device 9, the electric drive device 10, the radiator 11 (heat exchange), the middle port 126 and the first port 121 of the four-position six-way valve, the first water pump 13, the condenser 2 (heat exchange), the heater 14 (out of work), the warm air core body 15 (without heat exchange) and the first one-way valve 16, and then returns to the second water pump 8, the heat of the power supply device 9, the electric drive device 10 and the condenser 2 is brought to the radiator 11 by the cooling liquid to exchange heat with the air outside the vehicle, so that the purposes of cooling and temperature reduction are achieved. When the power battery 18 has a temperature equalization requirement, the third water pump 17 works, the cooling liquid sequentially flows through the power battery 18, the second one-way valve 20, the cooler 7 (without heat exchange) and the fourth port 124 of the four-position six-way valve, and then returns to the third water pump 17, and the power battery 18 achieves the purpose of equalizing the internal temperature. When the passenger compartment of the vehicle needs cooling, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the first expansion valve 4 (work) and the evaporator 5 (heat exchange) and returns to the compressor 1, and the passenger compartment is cooled through the evaporator 5.

As shown in fig. 4, the third mode is a mode in which the air conditioning system cools the power battery 18, and the power supply unit 9, the electric drive unit 10, and the power battery 18 are cooled; the specific process comprises the following steps: under the high-temperature environment condition, when the power supply device 9 or the electric drive device 10 has a cooling demand, the second water pump 8 (and the first water pump 13) works, the cooling liquid sequentially flows through the power supply device 9, the electric drive device 10, the radiator 11 (heat exchange), the middle port 126 and the first port 121 of the four-position six-way valve, the first water pump 13, the condenser 2 (heat exchange), the heater 14 (out of work), the warm air core body 15 (without heat exchange) and the first one-way valve 16, and then returns to the second water pump 8, the heat of the power supply device 9, the electric drive device 10 and the condenser 2 is brought to the radiator 11 by the cooling liquid to exchange heat with the air outside the vehicle, so that the purposes of cooling and temperature reduction are achieved. When the power battery 18 has a cooling request, the third water pump 17 works, the cooling liquid flows through the power battery 18, the second check valve 20, the cooler 7 (heat exchange) and the fourth port 124 of the four-position six-way valve in sequence and then returns to the third water pump 17, and the heat of the power battery 18 is taken away by the cooler 7 to achieve the purpose of cooling. When the passenger compartment of the vehicle has no cooling requirement and the power battery 18 has a cooling request, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the second expansion valve 6 (working) and the cooler 7 (heat exchange), and then returns to the compressor 1, and the cooling of the power battery 18 is realized through the cooler 7.

As shown in fig. 5, the fourth mode is a mode in which the air conditioning system cools the passenger compartment, and the power supply unit 9, the electric drive unit 10, and the power battery 18 share the radiator 11; the specific process comprises the following steps: under normal temperature environment conditions, the power supply device 9, the electric drive device 10, the power battery 18 and the condenser 2 can share the radiator 11 for cooling, at the moment, the second water pump 8 (and the first water pump 13 and the third water pump 17) works, cooling liquid sequentially flows through the power supply device 9, the electric drive device 10, the radiator 11 (heat exchange), the middle port 126 and the first port 121 of the four-position six-way valve, the first water pump 13, the condenser 2 (heat exchange), the heater 14 (not working), the warm air core body 15 (no heat exchange), the second connecting port 192 and the third connecting port 193 of the three-position four-way valve, the third water pump 17, the power battery 18 and the second one-way valve 20, and then returns to the second water pump 88 to form a heat dissipation cycle. When the passenger compartment of the vehicle needs cooling, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the first expansion valve 4 (working) and the evaporator 5 (heat exchange), and then returns to the compressor 1, and the passenger compartment is cooled through the evaporator 5.

As shown in fig. 6, the fifth mode is a mode in which the air conditioning system cools the passenger compartment, the power supply unit 9 and the electric drive unit 10 are cooled, and the power battery 18 is temperature-equalized in a short cycle, and the specific process is as follows: under the normal temperature environmental condition, when power supply unit 9 or electricity drive device 10 has the cooling demand, second water pump 8 (and third water pump 17) work, the coolant liquid flows through power supply unit 9 in proper order, electricity drive device 10, radiator 11 (heat transfer), the middle port 126 and the first port 121 of four-bit six-way valve, first water pump 13, condenser 2 (heat transfer), heater 14 (out of work), warm braw core 15 (no heat transfer), first check valve 16 returns second water pump 8, the heat of power supply unit 9, electricity drive device 10 and condenser 2 is brought radiator 11 by the coolant liquid and is heat-exchanged with the air outside the car, reach cooling purpose. When the power battery 18 has a temperature equalization requirement, the third water pump 17 works, the cooling liquid sequentially flows through the power battery 18, the fourth connecting port 194 and the third connecting port 193 of the three-position four-way valve and then returns to the third water pump 17, and the power battery 18 achieves the purpose of equalizing the internal temperature. When the passenger compartment of the vehicle needs cooling, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the first expansion valve 4 (work) and the evaporator 5 (heat exchange) and returns to the compressor 1, and the passenger compartment is cooled through the evaporator 5.

As shown in fig. 7, the sixth mode is a mode in which the air conditioning system is not operated and the power supply device 9, the electric drive device 10, and the power battery 18 share the radiator 11 for cooling; the specific process comprises the following steps: under the normal temperature environment condition, the power supply device 9, the electric drive device 10 and the power battery 18 can share the radiator 11 for cooling, at the moment, the second water pump 8 (and the third water pump 17) works, and the cooling liquid sequentially flows through the power supply device 9, the electric drive device 10, the radiator 11 (heat exchange), the middle port 126 and the fifth port 125 of the four-position six-way valve, the third water pump 17, the power battery 18 and the second one-way valve 20 and then returns to the second water pump 8 to form a heat dissipation cycle. When the passenger compartment of the vehicle has no cooling requirement, the air conditioner does not work.

As shown in fig. 8, the seventh mode is a mode in which the air conditioning system is not operated, the power supply device 9 and the electric drive device 10 are cooled, and the constant-force battery section is circularly and uniformly heated; the specific process comprises the following steps: under the normal temperature environment condition, when the power supply device 9 or the electric drive device 10 has a cooling demand, the second water pump 8 works, the cooling liquid flows through the power supply device 9, the electric drive device 10, the radiator 11 (heat exchange), the middle port 126 and the first port 121 of the four-position six-way valve, the first connecting port 191 and the second connecting port 192 of the three-position four-way valve, the first check valve 16 and returns to the second water pump 8, the heat of the power supply device 9 and the electric drive device 10 is brought to the radiator 11 by the cooling liquid to exchange heat with the air outside the vehicle, and the cooling purpose is achieved. When the power battery 18 has a temperature equalization requirement, the third water pump 17 works, the cooling liquid sequentially flows through the power battery 18, the fourth connecting port 194 and the third connecting port 193 of the three-position four-way valve and then returns to the third water pump 17, and the power battery 18 achieves the purpose of equalizing the internal temperature. When the passenger compartment of the vehicle has no cooling requirement, the air conditioner does not work.

As shown in fig. 9, the eighth mode is a mode in which the air conditioning system heats the passenger compartment by using the waste heat, and the power supply device 9, the electric drive device 10, and the power battery 18 are cooled; the specific process comprises the following steps: under the condition of a lower-temperature environment, when the passenger compartment of the vehicle has a heating demand and the residual heat is excessive, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the second expansion valve 6 (working) and the cooler 7 (heat exchange), and then returns to the compressor 1 to form a residual heat heating cycle. At this time, the first water pump 13 works, and the cooling liquid flows through the condenser 2 (heat exchange), the heater 14 (non-working), the warm air core body 15 (heat exchange), the second interface and the first interface of the three-position four-way valve in sequence, and then returns to the first water pump 13, and provides heat for the passenger compartment of the vehicle through the warm air core body 15. Meanwhile, the second water pump 8 (and the third water pump 17) work, the cooling liquid sequentially flows through the power supply device 9 and the electric drive device 10, the cooling liquid is divided into two paths, the first path passes through the radiator 11 (for heat exchange), the middle port 126 and the fifth port 125 of the four-position six-way valve, the third water pump 17, the power battery 18 and the second one-way valve 20 and returns to the second water pump 8 to form a heat dissipation cycle, the second path passes through the third port 123 and the second port 122 of the four-position six-way valve and the cooler 7 (for heat exchange) and returns to the second water pump 8, and another heat exchange cycle is formed to provide waste heat for the air conditioning system.

As shown in fig. 10, the ninth mode is a mode in which the air conditioning system heats the passenger compartment by using waste heat and environmental heat, the power supply device 9 and the electric drive device 10 are cooled, and the power battery 18 is subjected to short-cycle temperature equalization; the specific process comprises the following steps: under the condition of a lower temperature environment, when the passenger compartment of the vehicle has heating demand and the residual heat is insufficient, the compressor 1 is started, and the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the second expansion valve 6 (working) and the cooler 7 (heat exchange) and returns to the compressor 1 to form a heating cycle. At this time, the first water pump 13 works, and the cooling liquid flows through the condenser 2 (heat exchange), the heater 14 (non-working), the warm air core body 15 (heat exchange), the second connector 192 and the first connector 191 of the three-position four-way valve in sequence and then returns to the first water pump 13, so that heat exchange circulation is formed to provide heat for the passenger compartment of the vehicle. Meanwhile, the second water pump 8 works, and the cooling liquid flows through the power supply device 9, the electric driving device 10, the radiator 11 (heat exchange), the middle port 126 and the second port 122 of the four-position six-way valve, the cooler 7 (heat exchange) in sequence and then returns to the second water pump 8 to form a heat exchange cycle to provide a low-temperature heat source for the air conditioning system. When the power battery 18 has a temperature equalization requirement, the third water pump 17 works, the cooling liquid sequentially flows through the power battery 18, the fourth connecting port 194 and the third connecting port 193 of the three-position four-way valve and then returns to the third water pump 17, and the power battery 18 achieves the purpose of equalizing the internal temperature.

As shown in fig. 11, the tenth mode is a mode in which the air conditioning system heats the passenger compartment by using the waste heat, the power supply device 9 and the electric drive device 10 are cooled, and the power battery 18 is subjected to short-cycle temperature equalization, and the specific process is as follows: under the condition of a lower temperature environment, when the passenger compartment of the vehicle has heating demand and the residual heat is enough, the compressor 1 is started, and the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the second expansion valve 6 (working) and the cooler 7 (heat exchange) and returns to the compressor 1 to form a residual heat heating cycle. At this time, the first water pump 13 works, and the cooling liquid flows through the condenser 2 (heat exchange), the heater 14 (non-working), the warm air core body 15 (heat exchange), the second connector 192 and the first connector 191 of the three-position four-way valve in sequence and then returns to the first water pump 13, so that heat exchange circulation is formed to provide heat for the passenger compartment of the vehicle. Meanwhile, the second water pump 8 works, and the cooling liquid flows through the power supply device 9, the electric driving device 10, the third port 123 and the fourth port 124 of the four-position six-way valve and the cooler 7 (exchanges heat) in sequence and then returns to the first water pump 13 to form a heat exchange cycle to provide waste heat for the air conditioning system. When the power battery 18 has a temperature equalization requirement, the third water pump 17 works, the cooling liquid sequentially flows through the power battery 18, the fourth connecting port 194 and the third connecting port 193 of the three-position four-way valve and then returns to the third water pump 17, and the power battery 18 achieves the purpose of equalizing the internal temperature.

As shown in fig. 12, the eleventh mode is a mode in which the air conditioning system is not operated, the passenger compartment is heated by the heater 14, the power supply device 9 and the electric drive device 10 are kept warm, and the power battery 18 is kept warm for a short period; the specific process comprises the following steps: under the low temperature environmental condition, when the passenger cabin of vehicle has the heating demand and the waste heat is less, and air conditioning system heats when inefficiency, first water pump 13 work, and the coolant liquid flows through condenser 2 (no heat transfer), heater 14 (work), warm braw core 15 (heat transfer), the second connector 192 and the first connector 191 of three-position four-way valve in proper order, returns first water pump 13 again, forms the heat transfer circulation and provides the heat for the passenger cabin of vehicle. At this time, the second water pump 8 works, and the coolant flows through the power supply device 9, the electric driving device 10, the third port 123 and the fourth port 124 of the four-position six-way valve, and the cooler 7 in sequence (without heat exchange), and then returns to the first water pump 13, so that a heat preservation and heat storage cycle is formed. When the power battery 18 has a temperature equalization requirement, the third water pump 17 works, the cooling liquid sequentially flows through the power battery 18, the fourth connecting port 194 and the third connecting port 193 of the three-position four-way valve and then returns to the third water pump 17, and the power battery 18 achieves the purpose of equalizing the internal temperature.

As shown in fig. 13, the twelfth mode is a mode in which the air conditioning system is not operated, the passenger compartment and the power battery 18 are heated by the heater 14, and the power supply device 9 and the electric drive device 10 are kept warm, and the specific process is as follows: under the condition of low-temperature environment, when the power battery 18 needs to be heated, the passenger compartment of the vehicle has heating demand and less waste heat, and the air conditioning system has low heating efficiency, the first water pump 13 (and the third water pump 17) works, the cooling liquid sequentially flows through the condenser 2 (without heat exchange), the heater 14 (working), the warm air core body 15 (heat exchange), the second connector 192 and the third connector 193 of the three-position four-way valve, the third water pump 17, the power battery 18, the fourth connector 194 and the first connector 191 of the three-position four-way valve, and then returns to the first water pump 13 to form a heat exchange cycle, so that heat is provided for the power battery 18 and the passenger compartment of the vehicle. At this time, the second water pump 8 works, and the cooling liquid flows through the power supply device 9, the electric driving device 10, the third port 123 and the fourth port 124 of the four-position six-way valve, the cooler 7 (without heat exchange) in sequence and then returns to the second water pump 8, so that heat preservation and heat storage circulation is formed.

As shown in fig. 14, the thirteenth mode is a mode in which the air conditioning system uses waste heat to heat the passenger compartment and the power battery 18; the specific process comprises the following steps: under the condition of low-temperature environment, when the power battery 18 needs to be heated and the passenger compartment of the vehicle has heating requirement and the residual heat is enough, the compressor 1 is started, the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the second expansion valve 6 (work) and the cooler 7 (heat exchange) and then returns to the compressor 1 to form a residual heat heating cycle. At this time, the first water pump 13 (and the third water pump 17) operates, and the coolant flows through the condenser 2 (heat exchange), the heater 14 (if necessary), the warm air core body 15 (heat exchange), the second connection port 192 and the third connection port 193 of the three-position four-way valve, the third water pump 17, the power battery 18, the fourth connection port 194 of the three-position four-way valve, and the first connection in sequence, and then returns to the first water pump 1313 to form a heat exchange cycle, thereby providing heat for the power battery 18 and the forehead passenger compartment of the vehicle. Meanwhile, the second water pump 8 works, and the cooling liquid sequentially flows through the power supply device 9, the electric driving device 10, the third port 123 and the fourth port 124 of the four-position six-way valve and the cooler 7 (for heat exchange) and returns to the second water pump 8, so that heat exchange circulation is formed to provide waste heat for the air conditioning system.

As shown in fig. 15, the fourteenth mode is a mode in which the air conditioning system heats the passenger compartment and the power battery 18 using waste heat and ambient heat energy; the specific process comprises the following steps: under the condition of low-temperature environment, when the power battery 18 needs to be heated and the passenger compartment of the vehicle has heating requirement and insufficient waste heat, the compressor 1 is started, and the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the second expansion valve 6 (work) and the cooler 7 (heat exchange) and then returns to the compressor 1 to form a heating cycle. At this time, the first water pump 13 (and the third water pump 17) operates, and the coolant flows through the condenser 2 (heat exchange), the heater 14 (if necessary), the warm air core body 15 (heat exchange), the second connection port 192 and the third connection port 193 of the three-position four-way valve, the third water pump 17, the power battery 18, the fourth connection port 194 of the three-position four-way valve, and the first connection in sequence, and then returns to the first water pump 13 to form a heat exchange cycle, so that heat is provided for the power battery 18 and the passenger compartment of the vehicle. Meanwhile, the second water pump 8 works, and the cooling liquid flows through the power supply device 9, the electric driving device 10, the radiator 11 (heat exchange), the middle port 126 and the second port 122 of the four-position six-way valve, the cooler 7 (heat exchange) in sequence and then returns to the second water pump 8 to form a heat exchange cycle to provide a low-temperature heat source for the air conditioning system.

As shown in fig. 16, the fifteenth mode is a mode in which the air conditioning system and the heater 14 heat the passenger compartment and the power battery 18, and the power supply unit 9 and the electric drive unit 10 are kept warm; the specific process comprises the following steps: under the condition of low-temperature environment, when the power battery 18 and the passenger compartment of the vehicle have quick heating requirements and little waste heat, the compressor 1 is started, and the refrigerant flows through the condenser 2 (heat exchange), the liquid receiver 3, the first expansion valve 4 (work) and the evaporator 5 (heat exchange) and then returns to the compressor 1 to form an air conditioner compression work heating cycle. At this time, the first water pump 13 (and the third water pump 17) works, and the cooling liquid flows through the condenser 2 (heat exchange), the heater 14 (work), the warm air core body 15 (heat exchange), the second connecting port 192 and the third connecting port 193 of the three-position four-way valve, the third water pump 17, the power battery 18, the fourth connecting port 194 of the three-position four-way valve and the first connection in sequence, and then returns to the first water pump 13 to form a heat exchange cycle to provide heat for the power battery 18 and a passenger compartment of the vehicle. Meanwhile, the second water pump 8 works, and the cooling liquid flows through the power supply device 9, the electric driving device 10, the third port 123 and the fourth port 124 of the four-position six-way valve and the cooler 7 in sequence (without heat exchange) and then returns to the second water pump 8 to form heat preservation and heat storage circulation.

It can be understood that the extremely simple air conditioning system realizes the function of a heat pump, and provides required cold and heat for the passenger compartment by matching with a specially designed cooling liquid loop, so as to meet the requirement of comfort; when appropriate, the waste heat of the power battery 18, the power supply device 9 and the electric drive device 10 can be used as a low-temperature heat source for heating of the air conditioning system, so that the energy efficiency utilization rate of the vehicle is improved, the endurance mileage of the vehicle is increased, the high energy efficiency and the high integration degree of the multifunctional integrated heat management system are realized, the structure is reasonable, and the manufacturing cost is low.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-functional integrated thermal management system, comprising:

the switching mechanism is provided with a first multi-way valve and a second multi-way valve, the first multi-way valve is provided with a first port, a second port, a third port, a fourth port, a fifth port and a middle port, and the second multi-way valve is provided with a first connecting port, a second connecting port, a third connecting port and a fourth connecting port;

the air conditioning system is provided with a compressor, a condenser, an evaporator, a cooler and a first water pump, wherein one end of the compressor is connected with the condenser, the other end of the compressor is respectively connected with the evaporator and the cooler, the condenser is respectively connected with the first port and the first connecting port through the first water pump, the evaporator is connected with the condenser, and the cooler is respectively connected with the second port and the fourth port;

the warm air system is provided with a heater and a warm air core body, one end of the heater is connected with the condenser, the other end of the heater is connected with the warm air core body, and the warm air core body is connected with the second connecting port;

the electric drive cooling system is provided with an electric drive device, a radiator and a second water pump, one end of the electric drive device is connected with the second water pump, the other end of the electric drive device is respectively connected with the radiator and the third port, the second water pump is respectively connected with the cooler and the warm air core body, and the radiator is connected with the middle port;

the battery temperature control system is provided with a power battery and a third water pump, one end of the power battery is connected with the third water pump, the other end of the power battery is respectively connected with the fourth connector and the cooler, and the third water pump is respectively connected with the fifth port and the third connector.

2. The multi-functional integrated thermal management system of claim 1, further comprising parallel piping comprising a first branch on which the evaporator is disposed and a second branch connected between the condenser and the cooler.

3. The system of claim 2, further comprising a first expansion valve disposed on the first branch, wherein the first expansion valve is positioned between the evaporator and the condenser.

4. The multi-functional integrated thermal management system of claim 2 or 3, further comprising a second expansion valve disposed on the second branch, the second expansion valve being located between the condenser and the cooler.

5. The multi-functional integrated thermal management system of claim 2, further comprising a liquid reservoir connected to the line between the condenser and the parallel line.

6. The multifunctional integrated thermal management system of claim 1, wherein the electrically driven cooling system further has a power supply device connected to a conduit between the electric drive device and the second water pump.

7. The multi-functional integrated thermal management system of claim 1, wherein the warm air system further has a first one-way valve connected to a conduit between the warm air core and the second water pump.

8. The multi-functional integrated thermal management system of claim 1, wherein the battery temperature control system further has a second one-way valve connected to a conduit between the power battery and the cooler.

9. The multi-functional integrated thermal management system according to claim 1, wherein the first multi-way valve comprises a four-position, six-way valve and the second multi-way valve comprises a three-position, four-way valve.

10. An electrical consumer comprising the multifunctional integrated thermal management system of any of claims 1-9.