Direct heat pump thermal management system architecture based on a ten-port valve and ten-port valve structure

Abstract

The application discloses a direct heat pump thermal management system architecture based on a ten-port valve and a ten-port valve structure, relates to the technical field of vehicle thermal management architecture, and the thermal management system architecture at least comprises an electric drive loop and a battery loop; the battery loop is connected with a water heating loop through a three-port proportional valve; the electric drive loop and the battery loop can be connected through a ten-port valve; the two ends of the electric drive loop and the battery loop are respectively connected to different valve ports of the ten-port valve, a rotatable valve core is arranged in the ten-port valve, and a plurality of independently arranged liquid path channels are formed in the valve core; when the valve core rotates, different liquid path channels can connect different two valve ports, so that the electric drive loop and the battery loop can be connected according to the working mode of the thermal management system, and the three-port proportional valve is controlled in cooperation. The architecture is simple in structure, can provide multiple loop connection modes, and can meet different temperature control requirements of the thermal management system.

Description

Technical Field

[0001] This disclosure generally relates to the field of vehicle thermal management architecture technology, and specifically to a direct heat pump thermal management system architecture based on a ten-way valve and the ten-way valve structure. Background Technology

[0002] Currently, most electric vehicles adopt integrated thermal management systems with heat pump systems. Compared with traditional electric heating solutions for passenger compartments, heat pump systems can reduce the energy consumption for heating passenger compartments.

[0003] A typical integrated solution integrates the vehicle's electric drive cooling system, power battery temperature control system, and air conditioning system, connecting these systems to enable heat flow between them.

[0004] However, most integrated thermal management systems with heat pump systems require complex loop connections and complex energy distribution to ensure that each component operates at a reasonable temperature. This poses a great challenge to the early design and later installation of the thermal management system. To address this, we propose a direct heat pump thermal management system architecture based on a ten-way valve. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a direct heat pump thermal management system architecture based on a ten-way valve and a ten-way valve structure.

[0006] In a first aspect, this application provides a direct heat pump thermal management system architecture based on a ten-way valve, the thermal management system architecture including at least: an electric drive circuit and a battery circuit;

[0007] The battery circuit is connected to the water heating circuit via a three-way proportional valve;

[0008] The electric drive circuit and the battery circuit can be connected through a ten-way valve; wherein, the ten-way valve has ten connectable valve ports; both ends of the electric drive circuit and the battery circuit are respectively connected to different valve ports, and the ten-way valve is provided with a rotatable valve core, and the valve core forms multiple independently configured liquid passages.

[0009] When the valve core rotates, different liquid passages can connect two different valve ports, allowing the electric drive circuit and the battery circuit to be connected according to the working mode of the thermal management system, and to cooperate in controlling the three-way proportional valve to meet the different temperature control requirements of the thermal management system.

[0010] According to the technical solution provided in this application, the ten valve ports of the ten-way valve are sequentially formed to form the first port to the tenth port;

[0011] The electric drive circuit is connected to the seventh port and the tenth port respectively; the battery circuit is connected to the first port and the eighth port respectively.

[0012] According to the technical solution provided in this application, the thermal management system architecture further includes: a heat dissipation circuit, the heat dissipation circuit including at least one radiator, the two ends of the radiator being connected to the third port and the fourth port of the ten-way valve, respectively.

[0013] According to the technical solution provided in this application, the thermal management system architecture further includes: an air conditioning circuit, which includes at least: a compressor, a built-in condenser, a cooler, and a gas-liquid separator connected in sequence to form a circulation loop;

[0014] The cooler has a first heat exchange channel and a second heat exchange channel. The output end of the compressor is connected to the built-in condenser, and its input end is connected to the output end of the gas-liquid separator. The output end of the built-in condenser is connected to one end of the first heat exchange channel, and the other end of the first heat exchange channel is connected to the gas-liquid separator.

[0015] According to the technical solution provided in this application, the air conditioning circuit further includes:

[0016] External condensers connected in parallel on both sides of the built-in condenser;

[0017] Evaporators connected in parallel on both sides of the cooler;

[0018] Solenoid valves are installed on the connecting pipes of the built-in condenser, the external condenser and the compressor. A first electronic expansion valve is installed between the built-in condenser and the cooler. A second electronic expansion valve is installed on the connecting pipe of the evaporator. The second electronic expansion valve is located on the side of the evaporator away from the gas-liquid separator.

[0019] According to the technical solution provided in this application, the electric drive circuit includes at least: a battery-electric drive assembly and an electric drive water pump connected to each other; the input end of the electric drive water pump is connected to the tenth port, and the output end of the battery-electric drive assembly is connected to the seventh port;

[0020] The battery circuit includes at least: a power battery and a battery water pump connected to each other; the input end of the battery water pump is connected to the eighth port, and the output end of the power battery is connected to the first port;

[0021] The water heating circuit is connected in parallel on both sides of the power battery and the battery water pump, and includes: a heating water pump, a heater and a heating core connected in sequence;

[0022] The output end of the warm air pump is connected to the input end of the heater, the output end of the heater is connected to the input valve port of the three-way proportional valve, the warm air core is connected to the first output valve port of the three-way proportional valve, and the second output valve port of the three-way proportional valve is connected to the input end of the battery pump.

[0023] According to the technical solution provided in this application, the thermal management system architecture further includes: a first auxiliary circuit, the two ends of the first auxiliary circuit being connected to the second port and the ninth port of the ten-way valve respectively, and the first auxiliary circuit being connected to the two ends of the second heat exchange channel;

[0024] The second auxiliary circuit is connected at both ends to the fifth and sixth ports of the ten-way valve, respectively.

[0025] According to the technical solution provided in this application, the thermal management system architecture has multiple working modes;

[0026] In one of the operating modes, the first port is connected to the second port, the third port is connected to the tenth port, the fourth port is connected to the seventh port, the fifth port is connected to the sixth port, and the eighth port is connected to the ninth port;

[0027] The electric drive circuit is connected to the heat dissipation circuit to achieve heat dissipation of the battery-electric drive assembly; the battery circuit is connected to the air conditioning circuit through the first auxiliary circuit to achieve heat exchange with the air conditioning circuit.

[0028] Secondly, this application provides a ten-way valve structure applied to the aforementioned direct heat pump thermal management system architecture based on a ten-way valve, the ten-way valve structure comprising:

[0029] The valve body has an internal mounting cavity; ten valve ports are provided on the side wall of the valve body along its circumference, and each valve port is connected to the mounting cavity.

[0030] The valve core is rotatably disposed within the mounting cavity and has five independently configured liquid passages inside; each liquid passage can be connected to a different valve port;

[0031] A valve body cover is disposed on the valve core and connected to the top end face of the valve body via a connector.

[0032] According to the technical solution provided in this application, the ten valve ports are sequentially referred to as the first port to the tenth port, and the five liquid passages are sequentially referred to as the first liquid passage to the fifth liquid passage;

[0033] The first liquid path can connect the first port to the second port; the second liquid path can connect the third port to the tenth port; the third liquid path can connect the fourth port to the seventh port; the fourth liquid path can connect the fifth port to the sixth port; and the fifth liquid path can connect the eighth port to the ninth port.

[0034] In summary, this technical solution specifically discloses a direct heat pump thermal management system architecture based on a ten-way valve and the ten-way valve structure. The thermal management system architecture includes at least an electric drive circuit and a battery circuit. The battery circuit is connected to the water heating circuit via a three-way proportional valve. The electric drive circuit and the battery circuit are connected via a ten-way valve. The ten-way valve has ten connectable ports. Different ports are connected to both ends of the electric drive circuit and the battery circuit. The ten-way valve contains a rotatable valve core with multiple independently configured liquid passages. When the valve core rotates, different liquid passages connect different ports, allowing the electric drive circuit and the battery circuit to connect according to the thermal management system's operating mode and cooperate with the three-way proportional valve to meet different temperature control requirements of the thermal management system.

[0035] Current integrated thermal management systems mostly require complex circuit connections and need to consider complex energy distribution to ensure that each component operates at a reasonable temperature. This brings great difficulty to the early design and later installation of the thermal management system. In this application, the combination of a ten-way valve structure and a three-way proportional valve can realize the on-demand connection between the electric drive circuit and the battery circuit. At the same time, by controlling the conduction state of the three-way proportional valve, the required temperature adjustment of the whole vehicle can be completed, which greatly simplifies the complexity of the thermal management system architecture and provides more diverse functional options for the thermal management system, further optimizing the rational flow of energy between various flow paths. Attached Figure Description

[0036] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0037] Figure 1 This is a schematic diagram of the first interconnected operating condition of a direct heat pump thermal management system architecture based on a ten-way valve.

[0038] Figure 2 This is a schematic diagram of the second interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0039] Figure 3 This is a schematic diagram of the third interconnection mode of the direct heat pump thermal management system architecture based on a ten-way valve.

[0040] Figure 4 This is a schematic diagram of the fourth interconnection mode of the direct heat pump thermal management system architecture based on a ten-way valve.

[0041] Figure 5 This is a schematic diagram of the fifth interconnection mode of the direct heat pump thermal management system architecture based on a ten-way valve.

[0042] Figure 6 This is a schematic diagram of the sixth interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0043] Figure 7 This is a schematic diagram of the seventh interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0044] Figure 8 This is a schematic diagram of the eighth interconnected operating condition of a direct heat pump thermal management system architecture based on a ten-way valve.

[0045] Figure 9 This is a schematic diagram of the ninth interconnection condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0046] Figure 10 This is a schematic diagram of the tenth interconnection condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0047] Figure 11 This is a schematic diagram of the ten-way valve port in a direct heat pump thermal management system architecture based on a ten-way valve.

[0048] Figure 12 This is an exploded structural diagram of a ten-way valve.

[0049] Figure 13 This is a schematic diagram of the overall structure of a ten-way valve.

[0050] Figure 14 This is a schematic diagram showing the connection between the valve port and the hydraulic circuit of a ten-way valve structure.

[0051] Numbered in the diagram: 1. Electric drive circuit; 2. Battery circuit; 3. Water heating circuit; 4. Ten-way valve; 41. Valve body; 42. Mounting cavity; 43. Valve port; 44. Valve core; 45. Liquid passage; 451. Drive end; 46. Valve body cover; 47. Connector; 48. Seal; 5. Heat dissipation circuit; 6. Radiator; 7. Air conditioning circuit; 8. Compressor; 9. Built-in condenser; 10. Cooler; 101. First heat exchange channel; 102. Two heat exchange channels; 11. Gas-liquid separator; 12. Evaporator; 13. Solenoid valve; 14. First electronic expansion valve; 15. Second electronic expansion valve; 16. Electric water pump; 17. Power battery; 18. Battery water pump; 19. Heater water pump; 20. Heater; 21. Heater core; 22. First auxiliary circuit; 23. Second auxiliary circuit; 24. Battery assembly; 25. Electric drive assembly; 26. External condenser; 27. Three-way proportional valve;

[0052] 001, First Port; 002, Second Port; 003, Third Port; 004, Fourth Port; 005, Fifth Port; 006, Sixth Port; 007, Seventh Port; 008, Eighth Port; 009, Ninth Port; 010, Tenth Port; 401, First Liquid Channel; 402, Second Liquid Channel; 403, Third Liquid Channel; 404, Fourth Liquid Channel; 405, Fifth Liquid Channel. Detailed Implementation

[0053] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0055] Example 1

[0056] Please refer to Figures 1-10 The diagram shown in this embodiment illustrates the first to tenth interconnected operating conditions of the direct heat pump thermal management system architecture based on a ten-way valve. The thermal management system architecture includes at least: an electric drive circuit 1 and a battery circuit 2.

[0057] Battery circuit 2 is connected to water heating circuit 3 via a three-way proportional valve 27;

[0058] The electric drive circuit 1 and the battery circuit 2 can be connected through a ten-way valve 4; wherein, the ten-way valve 4 has ten connectable valve ports; both ends of the electric drive circuit 1 and the battery circuit 2 are respectively connected to different valve ports, and the ten-way valve 4 is provided with a rotatable valve core, and multiple independently configured liquid passages are formed inside the valve core.

[0059] When the valve core rotates, different liquid passages can connect two different valve ports, allowing the electric drive circuit 1 and the battery circuit 2 to be connected according to the working mode of the thermal management system, and to cooperate with the control of the three-way proportional valve 27 to meet the different temperature control requirements of the thermal management system.

[0060] In this embodiment, the thermal management system architecture includes at least an electric drive circuit 1 and a battery circuit 2, which are connected by a ten-way valve 4. The battery circuit 2 is also connected to the water heating circuit 3 via a three-way proportional valve 27. This architecture simplifies the overall thermal management system architecture, enriches the circuit connection methods, and allows for more rational energy flow between circuits. Based on this architecture, by controlling the rotation of the valve core and the conduction relationship of the three-way proportional valve 27, multiple operating modes can be switched to meet the different temperature control requirements of the thermal management system, such as the different temperature control requirements of the battery module, electric drive module, and passenger cabin under different operating conditions.

[0061] Specifically, since the ten-way valve 4 has ten valve ports, and each pair of valve ports of the ten-way valve 4 will be connected to both ends of a circuit, and the valve core inside the ten-way valve 4 has multiple liquid passages, when the valve core rotates, different valve ports will be connected through liquid passages of different connection forms; different connection forms of liquid passages, such as liquid passages connecting adjacent valve ports, liquid passages connecting spaced valve ports, or liquid passages connecting two valve ports spaced apart, etc., are not specifically limited.

[0062] Based on the above description, please refer to Figure 5 In the connected operating condition shown, the electric drive circuit 1 and the battery circuit 2 are connected. When both the battery-electric drive assembly in the electric drive circuit 1 and the power battery 17 in the battery circuit 2 have cooling requirements, the radiator 6 can be used to dissipate heat for both at the same time. The water heating circuit 3 is connected to the battery circuit 2 through a three-way proportional valve 27. The conduction status of the three-way proportional valve 27 can provide targeted functional requirements, such as independently heating the passenger compartment or the power battery 17, or heating the passenger compartment or the power battery 17 simultaneously with the heater 20.

[0063] In a preferred embodiment, the ten-way valve 4 has ten valve ports that sequentially form the first port 001 to the tenth port 010; wherein, the electric drive circuit 1 is connected to the seventh port 007 and the tenth port 010 respectively; and the battery circuit 2 is connected to the first port 001 and the eighth port 008 respectively.

[0064] It should be explained that the ports formed by the valve port of the ten-way valve 4 are further defined as the first to the tenth ports, merely for the convenience of explaining the connection and coordination between each port and the circuit. In essence, the valve ports themselves are not fundamentally different.

[0065] In a preferred embodiment, the thermal management system architecture further includes a heat dissipation circuit 5, which includes at least one radiator 6, with both ends of the radiator 6 connected to the third port 003 and the fourth port 004 of the ten-way valve, respectively.

[0066] Specifically, based on the coordinated rotation of the radiator 6 in the heat dissipation circuit 5 and the valve core inside the ten-way valve 4, at least one of the battery-electric drive assembly and the power battery 17 can be selectively cooled through one radiator 6, for example... Figure 5 In the connected operating condition shown, radiator 6 can simultaneously dissipate heat from the battery-drive assembly and the power battery 17, while... Figure 4 In the connected operating condition shown, the radiator 6 can only dissipate heat for the power battery 17. In this way, the complexity of the thermal management system architecture can be greatly simplified.

[0067] In a preferred embodiment, the thermal management system architecture further includes: an air conditioning circuit 7, which includes at least: a compressor 8, a built-in condenser 9, a cooler 10, and a gas-liquid separator 11 connected in sequence to form a circulation loop;

[0068] The cooler 10 has a first heat exchange channel 101 and a second heat exchange channel 102. The output end of the compressor 8 is connected to the built-in condenser 9, and its input end is connected to the output end of the gas-liquid separator 11. The output end of the built-in condenser 9 is connected to one end of the first heat exchange channel 101, and the other end of the first heat exchange channel 101 is connected to the gas-liquid separator 11.

[0069] Specifically, although the air conditioning circuit 7 does not participate in the connection of the ten-way valve 4, it will exchange heat with the ten-way valve 4 through the cooler 10 to rationally plan the energy distribution within the thermal management system. Through the coordinated work of the internal circuits of the system, it can meet the cooling, heating, and defrosting needs of the passenger cabin, and at the same time, it can effectively manage the thermal of the battery pack, motor control unit, etc.

[0070] Furthermore, the air conditioning circuit 7 also includes:

[0071] External condensers 26 are connected in parallel on both sides of the built-in condenser 9;

[0072] Evaporators 12 are connected in parallel on both sides of cooler 10;

[0073] One-way valves 13 are provided on the connecting pipes of the built-in condenser 9, the external condenser 26 and the compressor 8. A first electronic expansion valve 14 is provided between the built-in condenser 9 and the cooler 10. A second electronic expansion valve 15 is provided on the connecting pipe of the evaporator 12, and the second electronic expansion valve 15 is located on the side of the evaporator 12 away from the gas-liquid separator 11.

[0074] The built-in condenser 9 and evaporator 20 are generally located inside the air conditioning unit. In heating mode, they can release heat through condensation to heat the passenger compartment or defrost the vehicle. The external condenser 26 can exchange heat with the environment. In the air conditioning circuit, the compressor 8 compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant, which then enters the air conditioning circuit 7 to participate in heat exchange.

[0075] For example, under refrigeration conditions, the high-temperature and high-pressure gaseous refrigerant exchanges heat with the environment in the external condenser 26 to further form a low-temperature liquid refrigerant. This low-temperature liquid refrigerant can then efficiently cool the medium flowing through the second heat exchange channel 102 after flowing into the first heat exchange channel 101 of the cooler 10. In addition, the evaporator 20 is used to convert the liquid refrigerant obtained by the built-in condenser 9 into vapor and absorb the heat of the cooled medium to achieve the corresponding refrigeration purpose.

[0076] Here, the solenoid valve 13 is used to control the flow direction of the high-temperature gaseous refrigerant, that is, whether it flows into the built-in condenser 9 or the external condenser 26; the first electronic expansion valve 14 and the second electronic expansion valve 15 are used to reduce pressure, throttle, and regulate the flow of the medium entering the built-in condenser 9 and the evaporator 12, respectively.

[0077] Based on the above description, the air conditioning circuit 7 in this embodiment includes circuits for three cooling modes, one heating mode, and one defrost mode, as detailed below:

[0078] (1) Single passenger cabin refrigeration: compressor 8 → external condenser 26 → evaporator 12 → gas-liquid separator 11 → compressor 8;

[0079] (2) Single-cell refrigeration: Compressor 8 → External condenser 26 → Cooler 10 → Gas-liquid separator 11 → Compressor 8;

[0080] (3) Dual-opening refrigeration (battery + passenger compartment): compressor 8 → external condenser 26 → cooler 10 and evaporator 12 → gas-liquid separator 11 → compressor 8;

[0081] (4) Air conditioning heating: compressor 8 → built-in condenser 9 → cooler 10 → gas-liquid separator 11 → compressor 8; This circuit can be combined with electric drive circuit 1 and battery circuit 2. By absorbing the heat of power battery 17 or battery-electric drive assembly at cooler 10, it can also absorb heat from the environment to achieve the purpose of heating the passenger cabin.

[0082] (5) Air conditioning dehumidification: compressor 8 → built-in condenser 9 → evaporator 12 → gas-liquid separator 11 → compressor 8, compressor 8 → built-in condenser 9 → cooler 10 and evaporator 12 → gas-liquid separator 11 → compressor 8; both circuits here can be defrosted, and can be selected according to the air outlet temperature. When the opening of the first electronic expansion valve 14 is 0, the two circuits are equivalent.

[0083] In a preferred embodiment, the electric drive circuit 1 includes at least: a battery-electric drive assembly and an electric drive water pump 16 connected to each other; the input terminal of the electric drive water pump 16 is connected to the tenth port 010, and the output terminal of the battery-electric drive assembly is connected to the seventh port 007; wherein, the battery-electric drive assembly includes a battery assembly 24 and an electric drive assembly 25, and the electric drive water pump 16 is used to provide circulating coolant in the electric drive circuit 1.

[0084] The battery circuit 2 includes at least: a power battery 17 and a battery water pump 18 connected to each other; the input end of the battery water pump 18 is connected to the eighth port 008, and the output end of the power battery 17 is connected to the first port 001; wherein, the battery water pump 18 is used to provide circulating coolant in the battery circuit 2.

[0085] The water heating circuit 3 is connected in parallel on both sides of the power battery 17 and the battery water pump 18, and includes: a heater water pump 19, a heater 20 and a heater core 21 connected in sequence; wherein, the heater core 7 is usually located in the heater water tank, and the heater core 21 has a circulating coolant pipe inside, which can receive the coolant provided by the heater water pump 19, and at the same time, heat the passenger compartment by exchanging heat with the environment; the heater water pump 19 is used to provide circulating coolant for the water heating circuit 3; the heater 20 is used to heat the circulating coolant.

[0086] The output end of the heater water pump 19 is connected to the input end of the heater 20, the output end of the heater 20 is connected to the input valve port a of the three-way proportional valve 27, the heater core 21 is connected to the first output valve port b of the three-way proportional valve 27, and the second output valve port c of the three-way proportional valve 27 is connected to the input end of the battery water pump 18.

[0087] Specifically, see Figure 1 The three-way proportional valve 27 includes an input valve port a, a first output valve port b, and a second output valve port c, which are respectively connected to the output end of the heater 20, the input end of the warm air core 21, and the input end of the battery water pump 18; specifically, it includes the following three conduction states:

[0088] (1) When the input valve port a and the first output valve port b are connected, the water heating circuit 3 is independently connected, that is, the warm air pump 19 → heater 20 → warm air core 21 → warm air pump 19 form a circulation path, which can heat the passenger cabin.

[0089] (2) When the input valve port a and the second output valve port c are connected, one branch of the water heating circuit 3 is connected to a partial branch of the battery circuit 2, that is, the warm air pump 19 → heater 20 → battery pump 18 → power battery 17 → warm air pump 19 form a circulation path, which can heat the power battery 17.

[0090] (3) Based on the above two circuits, when the input valve port a, the first output valve port b, and the second output valve port c are all connected, the warm air pump 19 → heater 20 → warm air core 21 and battery pump 18 will then return to the warm air pump 19 and enter the power battery 17 respectively, which can simultaneously add to the passenger cabin and the thermal power battery 17.

[0091] In a preferred embodiment, the thermal management system architecture further includes: a first auxiliary circuit 22, the two ends of which are respectively connected to the second port 002 and the ninth port 009 of the ten-way valve 4, and the first auxiliary circuit 22 is connected to both ends of the second heat exchange channel 102.

[0092] The second auxiliary circuit 23 is connected at both ends to the fifth port 005 and the sixth port 006 of the ten-way valve 4, respectively.

[0093] The first auxiliary circuit 22 and the second auxiliary circuit 23 are auxiliary circuits whose two ends are respectively connected to corresponding ports. They can work in conjunction with the aforementioned circuits to achieve the corresponding temperature control requirements, for example, such as... Figure 3 In the connected operating condition shown, the electric drive circuit 1 and the air conditioning circuit 7 can exchange heat at the cooler 10 through the first auxiliary circuit 22 and the second auxiliary circuit 23. At the same time, the waste heat of the battery-electric drive assembly can be used to heat other components.

[0094] In a preferred embodiment, the thermal management system architecture has multiple operating modes;

[0095] See Figure 1 In one of the operating modes, the first port 001 is connected to the second port 002, the third port 003 is connected to the tenth port 010, the fourth port 004 is connected to the seventh port 007, the fifth port 005 is connected to the sixth port 006, the eighth port 008 is connected to the ninth port 009; the electric drive circuit 1 is connected to the heat dissipation circuit 5 to achieve heat dissipation of the battery-electric drive assembly; the battery circuit 2 is connected to the air conditioning circuit 7 through the first auxiliary circuit 22 to achieve heat exchange with the air conditioning circuit 7.

[0096] Specifically, according to the above connection relationship, the circulating flow paths that can be formed are as follows: battery water pump 18 → power battery 17 → cooler 10 → battery water pump 18; electric drive water pump 16 → battery-electric drive assembly → radiator 6 → electric drive water pump 16.

[0097] In this mode, the air conditioning circuit 7 can be activated according to one of the aforementioned cooling mode, heating mode, and defrosting mode based on temperature control requirements. Similarly, the three-way proportional valve 27 at the water heating circuit 3 can also be activated according to the aforementioned three activation states based on temperature control requirements. This allows multiple integrated circuits to be formed through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This enables the independent or synchronous cooling of the power battery 17 and the passenger compartment, battery temperature equalization, and heating of the power battery 17 using the heater 20. It can also cool the battery-electric drive assembly. Based on the activation of the water heating circuit 3, the passenger compartment and the power battery 17 can also be heated independently or synchronously using the heater 20.

[0098] See Figures 2-11 The above process represents one of the operating states of the thermal management system architecture, which will be referred to as the first operating state. The other operating states will be described in detail below:

[0099] See Figure 2 In the second operating state, the first port 001 is connected to the tenth port 010, the second port 002 is connected to the ninth port 009, the third port 003 is connected to the sixth port 006, the fifth port 005 is connected to the fourth port 004, and the eighth port 008 is connected to the seventh port 007. Specifically, according to the above connection relationships, the following circulating flow path can be formed: battery water pump 18 → power battery 17 → electric drive water pump 16 → battery-electric drive assembly → battery water pump 18.

[0100] In this mode, the air conditioning circuit 7 can be activated according to the temperature control requirements, either in the aforementioned cooling mode (single passenger cabin cooling), heating mode, or defrosting mode. Meanwhile, the three-way proportional valve 27 at the water heating circuit 3 is activated with the input valve port a and the second output valve port b connected. This allows for the formation of multiple integrated circuits through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. Specifically, in the cooling mode, the passenger cabin can be cooled. In the heating mode, heat needs to be absorbed from the environment to heat the passenger cabin. Simultaneously, the activation of the water heating circuit 3 allows the heater 20 to independently heat the passenger cabin. Furthermore, due to the connection between the battery-electric drive assembly and the power battery 17, the waste heat from the battery-electric drive assembly can also heat the power battery 17.

[0101] See Figure 3In the third working state, the first port 001 is connected to the eighth port 008, the second port 002 is connected to the fifth port 005, the fourth port 004 is connected to the third port 003, the sixth port 006 is connected to the seventh port 007, and the ninth port 009 is connected to the tenth port 010. Specifically, according to the above connection relationship, the circulating flow path that can be formed is as follows: battery water pump 18 → power battery 17 → battery water pump 18; electric drive water pump 16 → battery-electric drive assembly → cooler 10 → electric drive water pump 16.

[0102] In this mode, the air conditioning circuit 7 can be activated according to one of the aforementioned cooling mode (single passenger cabin cooling), heating mode, and defrosting mode, depending on the temperature control requirements. Similarly, the three-way proportional valve 27 at the water heating circuit 3 can also be activated according to the aforementioned three activation states, depending on the temperature control requirements. This allows multiple integrated circuits to be formed through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This enables the cooling of the passenger cabin, the equalization of battery temperature, and the heating of the power battery 17 using the heater 20. It also allows the utilization of waste heat from the battery-electric drive assembly and the storage of heat in the battery-electric drive assembly.

[0103] See Figure 4 In the fourth operating state, the first port 001 is connected to the fourth port 004, the third port 003 is connected to the second port 002, the fifth port 005 is connected to the sixth port 006, the seventh port 007 is connected to the tenth port 010, and the eighth port 008 is connected to the ninth port 009. Specifically, according to the above connection relationships, the following circulation paths can be formed: battery water pump 18 → power battery 17 → radiator 6 → cooler 10 → battery water pump 18; electric drive water pump 16 → battery-electric drive assembly → electric drive water pump 16.

[0104] In this mode, the air conditioning circuit 7 can be activated according to the temperature control requirements of one of the aforementioned cooling modes (single passenger cabin cooling), heating modes, and defrosting modes. The three-way proportional valve 27 at the water heating circuit 3 is activated with the input valve port a and the second output valve port b connected. This allows multiple integrated circuits to be formed through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This can cool the passenger cabin and cool the power battery 17 through the radiator 6, allowing the battery-electric drive assembly to store heat. In the heating mode, the passenger cabin needs to be heated by the heat absorbed from the environment and the heat exchange between the cooler 10 and the battery circuit 2. At the same time, the passenger cabin can also be heated independently by the heater 20 based on the activation of the water heating circuit 3.

[0105] See Figure 5In the fifth operating state, the first port 001 is connected to the second port 002, the third port 003 is connected to the tenth port 010, the fourth port 004 is connected to the fifth port 005, the sixth port 006 is connected to the ninth port 009, and the eighth port 008 is connected to the seventh port 007. Specifically, according to the above connection relationship, the circulating flow path that can be formed is as follows: battery water pump 18 → power battery 17 → cooler 10 → radiator 6 → electric drive water pump 16 → battery-electric drive assembly → battery water pump 18.

[0106] In this mode, the air conditioning circuit 7 can be activated according to the temperature control requirements of one of the aforementioned cooling modes (single passenger cabin cooling), heating modes, and defrosting modes. The three-way proportional valve 27 at the water heating circuit 3 is activated with the input valve port a and the second output valve port b connected. This allows multiple integrated circuits to be formed through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This can cool the passenger cabin and dissipate heat from the power battery 17 and the battery-electric drive assembly through the radiator 6. In the heating mode, the air conditioning circuit 7 needs to absorb heat from the environment to heat the passenger cabin. At the same time, the activation of the water heating circuit 3 can also be used to independently heat the passenger cabin using the heater 20.

[0107] See Figure 6 In the sixth working state, the first port 001 is connected to the tenth port 010, the second port 002 is connected to the ninth port 009, the fourth port 004 is connected to the third port 003, the fifth port 005 is connected to the eighth port 008, and the sixth port 006 is connected to the seventh port 007. The sixth working state has some functions that are the same as the ninth working state described below, so it is generally not used and will not be described in detail here.

[0108] See Figure 7 In the seventh operating state, the first port 001 is connected to the eighth port 008, the second port 002 is connected to the third port 003, the fourth port 004 is connected to the seventh port 007, the fifth port 005 is connected to the sixth port 006, and the ninth port 009 is connected to the tenth port 010. Specifically, according to the above connection relationships, the following circulating flow paths can be formed: battery water pump 18 → power battery 17 → battery water pump 18; electric drive water pump 16 → battery-electric drive assembly → radiator 6 → cooler 10 → electric drive water pump 16.

[0109] In this mode, the air conditioning circuit 7 can be activated according to one of the aforementioned cooling mode (single passenger cabin cooling), heating mode, and defrosting mode, depending on the temperature control requirements. Similarly, the three-way proportional valve 27 at the water heating circuit 3 can also be activated according to the aforementioned three activation states, thereby forming multiple integrated circuits through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This can cool the passenger cabin, heat and equalize the power battery 17, and cool the battery-electric drive assembly. In the heating mode, the air conditioning circuit 7 uses the heat absorbed from the environment and the heat exchange between the cooler 10 and the electric drive circuit 1 to heat the passenger cabin. At the same time, based on the activation of the water heating circuit 3, the heater 20 can be used to independently or simultaneously heat the power battery 17 and the passenger cabin.

[0110] See Figure 8 In the eighth operating state, the first port 001 is connected to the second port 002, the third port 003 is connected to the sixth port 006, the fourth port 004 is connected to the fifth port 005, the seventh port 007 is connected to the tenth port 010, and the eighth port 008 is connected to the ninth port 009. Specifically, according to the above connection relationship, the following circulation paths can be formed: battery water pump 18 → power battery 17 → cooler 10 → battery water pump 18; electric drive water pump 16 → battery-electric drive assembly → electric drive water pump 16.

[0111] In this mode, the air conditioning circuit 7 can be activated according to one of the aforementioned cooling, heating, and defrosting modes based on temperature control requirements. Similarly, the three-way proportional valve 27 at the water heating circuit 3 can also be activated according to the aforementioned three activation states based on temperature control requirements. This allows multiple integrated circuits to be formed through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This enables independent or synchronous cooling of the power battery 17 and the passenger compartment, as well as battery temperature equalization. At this time, the battery-electric drive system is in a state of heat storage. In heating mode, the air conditioning circuit 7 absorbs heat from the environment and from the heat exchange between the cooler 10 and the battery circuit 2 to heat the passenger compartment. Based on the activation of the water heating circuit 3, the passenger compartment and the power battery 17 can also be heated independently or synchronously using the heater 20.

[0112] See Figure 9 In the ninth operating state, the first port 001 is connected to the tenth port 010, the second port 002 is connected to the fifth port 005, the third port 003 is connected to the fourth port 004, the sixth port 006 is connected to the ninth port 009, and the seventh port 007 is connected to the eighth port 008. Specifically, according to the above connection relationship, the circulating flow path that can be formed is as follows: battery water pump 18 → power battery 17 → electric drive water pump 16 → battery-electric drive assembly → battery water pump 18.

[0113] In this mode, the air conditioning circuit 7 can be activated according to the temperature control requirements of one of the aforementioned cooling modes (single passenger cabin cooling), heating modes, and defrosting modes. The three-way proportional valve 27 at the water heating circuit 3 is activated with the input valve port a and the second output valve port b connected. This allows multiple integrated circuits to be formed through the coordinated operation of the circuit connected by the ten-way valve 4, the air conditioning circuit 7, and the water heating circuit 3. This can cool the passenger cabin and heat the power battery 17 through the waste heat of the battery-electric drive assembly. In the heating mode, the air conditioning circuit 7 needs to absorb heat from the environment to heat the passenger cabin. At the same time, the water heating circuit 3 can also be activated to independently heat the passenger cabin using the heater 20.

[0114] See Figure 10 In the tenth working state, the first port 001 is connected to the fourth port 004, the second port 002 is connected to the third port 003, the fifth port 005 is connected to the eighth port 008, the sixth port 006 is connected to the seventh port 007, and the ninth port 009 is connected to the tenth port 010. The tenth working state has some functions that are the same as the fifth working state mentioned above, so it is generally not used and will not be described in detail here.

[0115] It should be explained that, based on the above, the thermal management system has multiple loops. The embodiments of this application form multiple comprehensive loops through the joint operation of multiple circulation paths. When selecting specific loops, it is necessary to consider various factors such as the current needs of the vehicle, driving conditions, and environmental conditions. The architecture proposed in the embodiments of this application is simple in structure but rich in loop connections, which can greatly meet the user's functional requirements for the thermal management system.

[0116] Example 2

[0117] See 12- Figure 14 Based on the direct heat pump thermal management system architecture based on a ten-way valve in Embodiment 1, this application proposes a ten-way valve structure, which includes:

[0118] The valve body 41 has an internal mounting cavity 42; ten valve ports 43 are opened along the circumference of the side wall of the valve body 41, and each valve port 43 is connected to the mounting cavity 42.

[0119] The valve core 44 is rotatably disposed in the mounting cavity 42 and has five independently disposed liquid passages 45 inside; each liquid passage 45 can be connected to a different valve port 43.

[0120] The valve body cover 46 is disposed on the valve core 44 and is connected to the top end face of the valve body 41 through the connector 47.

[0121] Specifically, the valve body 41 has a regular hexagonal prism structure, and each prism side has at least one valve port 43. In this way, each valve port 43 can be distributed at intervals, while being integrated into a regular structure without taking up too much space. A sealing element 48 is provided in the mounting cavity 42 in the valve body 41. The sealing element 48 is used to increase the sealing between the valve core 44 and its installation.

[0122] The valve core 44 has multiple liquid passages 45 arranged inside. When the actuator, which is connected to the drive end 451 at the top of the valve core 44, drives the valve core 44 to rotate, the different liquid passages 45 will follow the angle of rotation and connect to form a conductive liquid passage between different valve ports 2.

[0123] The valve body cover 46 is installed on the valve body 41 through the connector 8, thereby sealing the mounting cavity 42. The valve body cover 46 has a through hole in the middle corresponding to the drive end 451, so that it can extend outward through the through hole to connect with the external actuator. The connector 47 used here can be a bolt or other connector, and no specific limitation is made here.

[0124] In a preferred embodiment, the ten valve ports 44 are sequentially designated as the first port 001 to the tenth port 010, and the five liquid passages 46 are sequentially designated as the first liquid passage 401 to the fifth liquid passage 405.

[0125] Specifically, in the embodiments of this application, see... Figure 12 and Figure 13 Since the valve core 44 is rotatably connected to the valve body 41, the connection between the liquid path and the valve port 43 is not unique. Therefore, the following are possible connections: the first liquid path 401 can connect the first port 001 to the second port 002; the second liquid path 402 can connect the third port 003 to the tenth port 010; the third liquid path 403 can connect the fourth port 004 to the seventh port 007; the fourth liquid path 404 can connect the fifth port 005 to the sixth port 006; and the fifth liquid path 405 can connect the eighth port 008 to the tenth port 009.

[0126] It should be explained that the further definition of valve port 44 as the first to tenth valve ports is merely for the convenience of explaining the cooperation between the hydraulic circuit and valve port 44. In essence, valve port 44 is not fundamentally different. Similarly, the further definition of hydraulic circuit channel 45 is also similar. In addition, there are corresponding cooperation relationships between the various hydraulic circuits (in actual applications, multiple circuits need to be simultaneously connected). In the early stages of design, based on the specific design of the vehicle thermal management system, the connection relationship of each circuit can be determined according to the required working mode, thereby matching the hydraulic circuit design to ensure that the ten-way valve 4 can adapt to the connection of multiple circuits. Therefore, this application does not impose too many restrictions on the hydraulic circuit design.

[0127] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A ten-valve based direct heat pump thermal management system architecture, characterized in that, The heat management system architecture at least includes: an electric drive circuit (1) and a battery circuit (2); The battery circuit (2) is connected with a water heating circuit (3) through a three-way proportional valve (27); The electric drive circuit (1) and the battery circuit (2) can be connected through a ten-way valve (4); the ten-way valve (4) has ten connectable valve ports; the electric drive circuit (1) and the battery circuit (2) are respectively connected with different valve ports; the ten-way valve (4) is internally provided with a rotatable valve core, and a plurality of independently arranged liquid path channels are formed in the valve core; When the valve core rotates, different liquid path channels can connect different two valve ports, so that the electric drive circuit (1) and the battery circuit (2) can be connected according to the working mode of the heat management system, and the three-way proportional valve (27) is controlled to meet the different temperature control requirements of the heat management system; The ten valve ports of the ten-way valve (4) form first to tenth ports (001) to (010) in sequence; The electric drive circuit (1) is connected with the seventh port (007) and the tenth port (010), respectively; the battery circuit (2) is connected with the first port (001) and the eighth port (008), respectively; The heat management system architecture further includes a heat dissipation circuit (5), and the heat dissipation circuit (5) at least includes a heat sink (6); the heat sink (6) is connected with the third port (003) and the fourth port (004) of the ten-way valve, respectively; The heat management system architecture further includes an air conditioning circuit (7), and the air conditioning circuit (7) at least includes: a compressor (8), a built-in condenser (9), a cooler (10), and a gas-liquid separator (11) connected in sequence to form a circulation loop; The cooler (10) has a first heat exchange channel (101) and a second heat exchange channel (102); the output end of the compressor (8) is connected with the built-in condenser (9), the input end is connected with the output end of the gas-liquid separator (11); the output end of the built-in condenser (9) is connected with one end of the first heat exchange channel (101), and the other end of the first heat exchange channel (101) is connected with the gas-liquid separator (11).

2. The decussating valve based direct heat pump thermal management system architecture of claim 1, wherein, The air conditioning circuit (7) further includes: An external condenser (26) connected in parallel on both sides of the built-in condenser (9); An evaporator (12) connected in parallel on both sides of the cooler (10); An electromagnetic valve (13) is arranged on the connecting pipeline of the built-in condenser (9), the external condenser (26) and the compressor (8); a first electronic expansion valve (14) is arranged between the built-in condenser (9) and the cooler (10); a second electronic expansion valve (15) is arranged on the connecting pipeline of the evaporator (12), and the second electronic expansion valve (15) is located on the side of the evaporator (12) away from the gas-liquid separator (11).

3. The decussating valve based direct heat pump thermal management system architecture of claim 2, wherein, The electric drive circuit (1) at least comprises: a battery-electric drive assembly and an electric drive water pump (16) connected with each other; an input end of the electric drive water pump (16) is connected with the tenth port (010), and an output end of the battery-electric drive assembly is connected with the seventh port (007); The battery circuit (2) at least comprises: a power battery (17) and a battery water pump (18) connected with each other; an input end of the battery water pump (18) is connected with the eighth port (008), and an output end of the power battery (17) is connected with the first port (001); The water heating circuit (3) is connected in parallel on both sides of the power battery (17) and the battery water pump (18), and comprises: a warm air water pump (19), a heater (20) and a warm air core (21) connected in sequence; An output end of the warm air water pump (19) is connected with an input end of the heater (20), an output end of the heater (20) is connected with an input valve port of the three-way proportional valve (27), the warm air core (21) is connected with a first output valve port of the three-way proportional valve (27), and a second output valve port of the three-way proportional valve (27) is connected with an input end of the battery water pump (18).

4. The decussating valve based direct heat pump thermal management system architecture of claim 3, wherein, The heat management system architecture further comprises: a first auxiliary circuit (22), two ends of the first auxiliary circuit (22) are respectively connected with the second port (002) and the ninth port (009) of the ten-way valve (4), and the first auxiliary circuit (22) is connected with both ends of the second heat exchange channel (102); A second auxiliary circuit (23), two ends of the second auxiliary circuit (23) are respectively connected with the fifth port (005) and the sixth port (006) of the ten-way valve (4).

5. The decussating valve based direct heat pump thermal management system architecture of claim 4, wherein, The heat management system architecture has multiple working modes; In one of the working modes, the first port (001) and the second port (002) are communicated, the third port (003) and the tenth port (010) are communicated, the fourth port (004) and the seventh port (007) are communicated, the fifth port (005) and the sixth port (006) are communicated, and the eighth port (008) and the ninth port (009) are communicated; The electric drive circuit (1) is communicated with the heat dissipation circuit (5) to realize heat dissipation of the battery-electric drive assembly; and the battery circuit (2) is communicated with the air conditioning circuit (7) through the first auxiliary circuit (22) to realize heat exchange with the air conditioning circuit (7).

6. A ten-port valve structure, characterized by The ten-way valve structure comprises: A valve body (41) has an installation cavity (42) in the interior; ten valve ports (43) are arranged on the side wall of the valve body (41) along the circumference, and each valve port (43) is in communication with the installation cavity (42); A valve core (44) is rotatably arranged in the mounting cavity (42), and has five independent liquid passage channels (45) inside; A valve body upper cover (46) is arranged on the valve core (44) and connected with the top end surface of the valve body (41) through a connecting piece (47).

7. A ten-port valve structure according to claim 6, wherein The ten valve ports (43) are sequentially first to tenth ports (001-010), and the five liquid passage channels (45) are sequentially first to fifth liquid passages (401-405). The first liquid passage (401) can communicate the first port (001) with the second port (002); the second liquid passage (402) can communicate the third port (003) with the tenth port (010); the third liquid passage (403) can communicate the fourth port (004) with the seventh port (007); the fourth liquid passage (404) can communicate the fifth port (005) with the sixth port (006); and the fifth liquid passage (405) can communicate the eighth port (008) with the ninth port (009).

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