Direct heat pump heat management system architecture based on ten-way valve and ten-way valve structure

Abstract

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

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of vehicle thermal management architecture, and in particular to a direct heat pump thermal management system architecture based on a ten-way valve and a ten-way valve structure. Background Art

[0002] Currently, most electric vehicles use an integrated thermal management system with a heat pump system. Compared with traditional electric heating solutions for the passenger compartment, the heat pump system can reduce the energy consumption of heating the passenger compartment.

[0003] The general integrated solution is to integrate the vehicle's electric drive cooling system, power battery temperature control system, and air-conditioning system, which can connect the systems and realize the flow of heat between systems.

[0004] However, this type of integrated thermal management system with a heat pump system mostly requires complex circuit connectivity and complex energy distribution to ensure that each component operates at a reasonable temperature, which brings great difficulties to the early design and later installation and layout of the thermal management system. For this reason, 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, the present application provides a direct heat pump thermal management system architecture based on a ten-way valve, the thermal management system architecture comprising 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 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 a rotatable valve core is arranged inside the ten-way valve, and a plurality of independently arranged liquid channels are formed inside the valve core; When the valve core rotates, different fluid channels can connect two different valve ports, so that the electric drive circuit and the battery circuit can be connected according to the working mode of the thermal management system, and cooperate to control the three-way proportional valve to meet the different temperature control requirements of the thermal management system.

[0007] According to the technical solution provided by the present application, the ten valve ports of the ten-way valve sequentially form a first port to a tenth port; Wherein, the electric drive circuit is connected to the seventh port and the tenth port respectively; and the battery circuit is connected to the first port and the eighth port respectively.

[0008] According to the technical solution provided in the present application, the thermal management system architecture also includes: a heat dissipation circuit, the heat dissipation circuit includes at least one radiator, and the two ends of the radiator are respectively connected to the third port and the fourth port of the ten-way valve.

[0009] According to the technical solution provided in the present application, the thermal management system architecture further includes: an air conditioning circuit, the air conditioning circuit at least including: a compressor, a built-in condenser, a cooler, and a gas-liquid separator connected in sequence to form a circulation circuit; 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.

[0010] According to the technical solution provided by this application, the air conditioning circuit also includes: An external condenser connected in parallel on both sides of the built-in condenser; an evaporator connected in parallel on both sides of the cooler; Solenoid valves are provided on the connecting pipelines of the built-in condenser, the external condenser and the compressor, a first electronic expansion valve is provided between the built-in condenser and the cooler, a second electronic expansion valve is provided on the connecting pipeline of the evaporator, and the second electronic expansion valve is located on the side of the evaporator away from the gas-liquid separator.

[0011] According to the technical solution provided by the present application, the electric drive circuit at least includes: 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; The battery circuit at least comprises: 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; The water heating circuit is connected in parallel on both sides of the power battery and the battery water pump, and comprises: a warm air water pump, a heater and a warm air core connected in sequence; The output end of the warm air water 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 water pump.

[0012] According to the technical solution provided in the present application, the thermal management system architecture further includes: a first auxiliary circuit, the two ends of the first auxiliary circuit are respectively connected to the second port and the ninth port of the ten-way valve, and the first auxiliary circuit is connected to the two ends of the second heat exchange channel; A second auxiliary circuit, two ends of which are respectively connected to the fifth port and the sixth port of the ten-way valve.

[0013] According to the technical solution provided by this application, the thermal management system architecture has multiple working modes; In one of the working 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; the eighth port is connected to the ninth port; 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.

[0014] In a second aspect, the present application provides a ten-way valve structure, which is applied to the above-mentioned direct heat pump thermal management system architecture based on the ten-way valve, and the ten-way valve structure includes: A valve body, wherein the valve body has an installation cavity inside; the side wall of the valve body is provided with ten valve ports along its circumference, and each of the valve ports is connected to the installation cavity; A valve core, the valve core is rotatably disposed in the mounting cavity and has five independently disposed fluid channels therein; each of the fluid channels can be connected to a different valve port; The valve body upper cover is arranged on the valve core and connected to the top end surface of the valve body through a connecting piece.

[0015] According to the technical solution provided in the present application, the ten valve ports are sequentially the first port to the tenth port, and the five liquid channels are sequentially the first liquid channel to the fifth liquid channel; The first liquid circuit can connect the first port with the second port; the second liquid circuit can connect the third port with the tenth port; the third liquid circuit can connect the fourth port with the seventh port; the fourth liquid circuit can connect the fifth port with the sixth port; the fifth liquid circuit can connect the eighth port with the ninth port.

[0016] In summary, the present technical solution specifically discloses a direct heat pump thermal management system architecture based on a ten-way valve and a ten-way valve structure; wherein, the thermal management system architecture at least includes: an electric drive circuit and a battery circuit; the battery circuit is connected to the water heating circuit through a three-way proportional valve; 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 a rotatable valve core is arranged inside the ten-way valve, and a plurality of independently arranged liquid channels are formed inside the valve core; when the valve core rotates, different liquid channels can connect two different valve ports, so that the electric drive circuit and the battery circuit can be connected according to the working mode of the thermal management system, and cooperate to control the three-way proportional valve to meet the different temperature control requirements of the thermal management system.

[0017] Most of the current integrated thermal management systems require complex circuit connectivity and complex energy distribution to ensure that each component operates at a reasonable temperature, which brings great difficulties to the early design and later installation layout of the thermal management system. In this application, the cooperation 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, and at the same time, the conduction state of the three-way proportional valve is controlled to complete the required temperature adjustment of the entire vehicle, which greatly simplifies the complexity of the thermal management system architecture, and at the same time provides the thermal management system with more diverse functional options, further optimizing the reasonable flow of energy between various flow paths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 This is a schematic diagram of the first interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0019] Figure 2 Schematic diagram of the second interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0020] Figure 3 This is a schematic diagram of the third interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0021] Figure 4 Schematic diagram of the fourth interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0022] Figure 5 This is a schematic diagram of the fifth interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0023] 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.

[0024] Figure 7 Schematic diagram of the seventh interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0025] Figure 8 This is a schematic diagram of the eighth interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0026] Fig. 9 This is a schematic diagram of the ninth interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0027] Fig.10 This is a schematic diagram of the tenth interconnected operating condition of the direct heat pump thermal management system architecture based on a ten-way valve.

[0028] Fig.11 Schematic diagram of the ten-way valve ports of the direct heat pump thermal management system architecture based on the ten-way valve.

[0029] Fig.12 It is a schematic diagram of the explosion structure of a ten-way valve structure.

[0030] Fig.13 It is a schematic diagram of the overall structure of a ten-way valve structure.

[0031] Fig.14 The figure is a schematic diagram of the valve port and liquid path coordination of a ten-way valve structure.

[0032] Numbers in the figure: 1, electric drive circuit; 2, battery circuit; 3, water heating circuit; 4, ten-way valve; 41, valve body; 42, installation cavity; 43, valve port; 44, valve core; 45, liquid channel; 451, driving 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, first 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 drive water pump; 17. Power battery; 18. Battery water pump; 19. Warm air water pump; 20. Heater; 21. Warm air core; 22. First auxiliary circuit; 23. Second auxiliary circuit; 24. Battery assembly; 25. Electric drive assembly; 26. External condenser; 27. Three-way proportional valve; 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 path; 402, second liquid path; 403, third liquid path; 404, fourth liquid path; 405, fifth liquid path. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] Example 1 Please refer to Figure 1-Figure 10 The first to tenth interconnected working condition schematic diagrams of the direct heat pump thermal management system architecture based on the ten-way valve provided in the present embodiment are shown, and the thermal management system architecture at least includes: an electric drive circuit 1 and a battery circuit 2; The battery circuit 2 is connected to the water heating circuit 3 via 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; 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 a rotatable valve core is arranged inside the ten-way valve 4, and a plurality of independently arranged liquid channels are formed inside the valve core; When the valve core rotates, different fluid channels can connect two different valve ports, so that the electric drive circuit 1 and the battery circuit 2 can be connected according to the working mode of the thermal management system, and cooperate to control the three-way proportional valve 27 to meet the different temperature control requirements of the thermal management system.

[0036] In the embodiment of the present application, the thermal management system architecture at least includes: an electric drive circuit 1 and a battery circuit 2, and the two circuits can be connected through a ten-way valve 4, and the battery circuit 2 is also connected to the water heating circuit 3 through a three-way proportional valve 27. Such an architecture makes the overall thermal management system architecture simpler, and the circuit connection methods will be richer, and the flow of energy between circuits can be more reasonable; on the basis of such an architecture, by controlling the rotation of the valve core and the conduction relationship of the three-way proportional valve 27, switching of multiple working modes can be achieved to meet different temperature control requirements of the thermal management system, such as different temperature control requirements of the battery module, electric drive module and passenger compartment under different working conditions.

[0037] Specifically, since the ten-way valve 4 has ten valve ports, and every two valve ports of the ten-way valve 4 will be connected to the two ends of a circuit, and the valve core inside the ten-way valve 4 has multiple liquid channels, then when the valve core rotates, different valve ports will be connected through liquid channels with different interconnection forms; liquid channels with different interconnection forms, for example, are liquid channels connecting adjacent valve ports, liquid channels connecting spaced valve ports, or liquid channels connecting two spaced valve ports, etc., and are not specifically limited.

[0038] Based on the above description, see Figure 5 As shown in the interconnected working condition, the electric drive circuit 1 is interconnected with the battery circuit 2. When both the battery-electric drive assembly in the electric drive circuit 1 and the power battery 17 in the battery circuit 2 need to be cooled, the radiator 6 can be used to dissipate heat for both at the same time; and the water heating circuit 3 is connected to the battery circuit 2 through a three-way proportional valve 27, so the conduction condition of the three-way proportional valve 27 can provide targeted functional requirements, such as independently heating the passenger compartment or the power battery 17, and the heater 20 heating the passenger compartment or the power battery 17 at the same time.

[0039] In a preferred embodiment, the ten valve ports of the ten-way valve 4 sequentially form the first port 001 to the tenth port 010; wherein the electric drive circuit 1 is respectively connected to the seventh port 007 and the tenth port 010; and the battery circuit 2 is respectively connected to the first port 001 and the eighth port 008.

[0040] It should be explained that the ports formed by the valve ports of the ten-way valve 4 are further limited to the first to tenth ports only for the convenience of explaining the connection and coordination between each port and the circuit. In essence, there is no essential distinction between the valve ports themselves.

[0041] In a preferred embodiment, the thermal management system architecture further includes: a heat dissipation circuit 5, the heat dissipation circuit 5 includes at least one radiator 6, and two ends of the radiator 6 are respectively connected to the third port 003 and the fourth port 004 of the ten-way valve.

[0042] Specifically, based on the coordinated rotation of the radiator 6 in the heat dissipation circuit 5 and the valve core in the ten-way valve 4, at least one of the battery-electric drive assembly and the power battery 17 can be selectively cooled by a radiator 6, for example Figure 5 In the interconnected working condition shown in FIG. 1 , the radiator 6 can dissipate heat for both the battery-electric drive assembly and the power battery 17 at the same time. Figure 4 In the connected working condition shown in , 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.

[0043] In a preferred embodiment, the thermal management system architecture further includes: an air conditioning loop 7, the air conditioning loop 7 at least includes: a compressor 8, a built-in condenser 9, a cooler 10, and a gas-liquid separator 11 which are sequentially connected 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 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.

[0044] 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 circuit connected to the ten-way valve 4 through the cooler 10, rationally plan the energy distribution within the thermal management system, and through the coordinated work of the internal circuits of the system, it can meet the cooling, heating, defrosting and other needs of the passenger compartment, while also being able to effectively manage the thermal performance of the battery pack, motor and electronic control unit, etc.

[0045] Furthermore, the air conditioning circuit 7 also 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; A one-way valve 13 is provided on the connecting pipelines between 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, and a second electronic expansion valve 15 is provided 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.

[0046] Among them, the built-in condenser 9 and the evaporator 20 are generally arranged in the air-conditioning box. Under heating conditions, they can release heat through condensation to heat the passenger compartment or defrost the vehicle; and the external condenser 26 can realize heat exchange with the environment; in the air-conditioning loop, the compressor 8 compresses the refrigerant into a high-temperature and high-pressure gaseous refrigerant, and then enters the air-conditioning loop 7 to participate in heat exchange.

[0047] 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. Then, after the low-temperature liquid refrigerant flows into the first heat exchange channel 101 of the cooler 10, it can efficiently cool the medium flowing through the second heat exchange channel 102; in addition, the evaporator 20 is used to convert the liquid refrigerant converted by the built-in condenser 9 into vapor and absorb the heat of the cooled medium to achieve the corresponding refrigeration purpose.

[0048] 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 the pressure, throttle and adjust the flow of the medium entering the built-in condenser 9 and the evaporator 12 respectively.

[0049] Based on the above description, the air conditioning circuit 7 in the embodiment of the present application includes three circuits in cooling mode, one circuit in heating mode and one circuit in defrosting mode, as follows: (1) Single passenger cabin cooling: compressor 8 → external condenser 26 → evaporator 12 → gas-liquid separator 11 → compressor 8; (2) Single cell refrigeration: compressor 8 → external condenser 26 → cooler 10 → gas-liquid separator 11 → compressor 8; (3) Dual cooling (battery + passenger compartment): compressor 8 → external condenser 26 → cooler 10 and evaporator 12 → gas-liquid separator 11 → compressor 8; (4) Air conditioning and heating: compressor 8 → built-in condenser 9 → cooler 10 → gas-liquid separator 11 → compressor 8; this circuit can cooperate with the electric drive circuit 1 and the battery circuit 2 to absorb heat from the power battery 17 or the battery-electric drive assembly at the cooler 10, and can also absorb heat from the environment, thereby achieving the purpose of heating the passenger compartment; (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 can be defrosted and can be selected according to the outlet air temperature. When the opening degree of the first electronic expansion valve 14 is 0, the two circuits are equivalent.

[0050] 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 end of the electric drive water pump 16 is connected to the tenth port 010, and the output end 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.

[0051] The battery circuit 2 at least includes: 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.

[0052] The water heating circuit 3 is connected in parallel on both sides of the power battery 17 and the battery water pump 18, and it includes: a warm air water pump 19, a heater 20 and a warm air core 21 connected in sequence; wherein, the warm air core 7 is usually located in a warm air water tank, and there is a circulating coolant pipeline inside the warm air core 21, which can receive the coolant provided by the warm air water pump 19, and at the same time heat the passenger compartment through heat exchange with the environment; the warm air 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.

[0053] The output end of the warm air 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 warm air 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.

[0054] 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: (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 heater water pump 19 → heater 20 → heater core 21 → heater water pump 19 forms a circulation flow path, which can heat the passenger compartment.

[0055] (2) When the input valve port a and the second output valve port c are connected, a branch of the water heating circuit 3 is connected to a local branch of the battery circuit 2, that is, the warm air water pump 19 → heater 20 → battery water pump 18 → power battery 17 → warm air water pump 19 forms a circulation flow path, which can heat the power battery 17.

[0056] (3) Based on the above two circuits, when the input valve port a and the first output valve port b and the second output valve port c are all connected, there is a warm air water pump 19 → heater 20 → warm air core 21 and battery water pump 18, and then returns to the warm air water pump 19 and enters the power battery 17 respectively, so that the passenger compartment and the power battery 17 can be heated at the same time.

[0057] In a preferred embodiment, the thermal management system architecture further includes: a first auxiliary loop 22, the two ends of the first auxiliary loop 22 are respectively connected to the second port 002 and the ninth port 009 of the ten-way valve 4, and the first auxiliary loop 22 is connected to the two ends of the second heat exchange channel 102; The second auxiliary circuit 23 has two ends connected to the fifth port 005 and the sixth port 006 of the ten-way valve 4 respectively.

[0058] The first auxiliary circuit 22 and the second auxiliary circuit 23 are auxiliary circuits with two ends connected to corresponding ports, and can cooperate with the aforementioned circuits to achieve corresponding temperature control requirements. For example, Figure 3 As shown in the interconnected working condition, at this time, 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, and the waste heat of the battery-electric drive assembly can be used to heat other components.

[0059] In a preferred embodiment, the thermal management system architecture has multiple operating modes; See also Figure 1 In one of the working 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, and 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.

[0060] Specifically, according to the above interconnection 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.

[0061] In this mode, the air-conditioning circuit 7 can be connected according to one of the aforementioned cooling mode, heating mode and defrost mode according to the temperature control requirements, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 can also be connected according to the temperature control requirements according to the aforementioned three conduction states, thereby forming a variety of comprehensive circuits under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can achieve the purpose of independent or synchronous cooling of the power battery 17 and the passenger compartment, battery temperature equalization and heating of the power battery 17 by the heater 20, and at the same time, the battery-electric drive assembly can also be cooled. Based on the conduction of the water heating circuit 3, the passenger compartment and the power battery 17 can also be heated independently or synchronously by the heater 20.

[0062] See also Figure 2-Figure 11 The above process is one of the working states of the thermal management system architecture, which is now recorded as the first working state. The following is a detailed description of the other working states: See also Figure 2In the second 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 third port 003 is connected to the sixth port 006, the fifth port 005 is connected to the fourth port 004; 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→electric drive water pump 16→battery-electric drive assembly→battery water pump 18.

[0063] In this mode, the air-conditioning circuit 7 can be connected according to the temperature control requirements in one of the aforementioned cooling mode (single passenger compartment cooling), heating mode and defrost mode, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 is that the input valve port a is connected to the second output valve port b, thereby forming a variety of comprehensive circuits under the coordinated cooperation 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 compartment can be cooled; in the heating mode, it is necessary to absorb heat from the environment to achieve passenger compartment heating, and based on the conduction of the water heating circuit 3, the heater 20 can also be used to independently heat the passenger compartment. In addition, due to the connection between the battery-electric drive assembly and the power battery 17, the waste heat of the battery-electric drive assembly can also heat the power battery 17.

[0064] See also Figure 3 In 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; 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.

[0065] In this mode, the air-conditioning circuit 7 can be connected according to one of the aforementioned cooling mode (single passenger compartment cooling), heating mode and defrost mode according to the temperature control requirements, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 can also be connected according to the temperature control requirements according to the aforementioned three conduction states, thereby forming a variety of comprehensive circuits under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can achieve the purpose of cooling the passenger compartment, equalizing the battery temperature and heating the power battery 17 with the heater 20, and at the same time, it can also utilize the waste heat of the battery-electric drive assembly and store heat of the battery-electric drive assembly.

[0066] See also Figure 4In the fourth working 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; the eighth port 008 is connected to the ninth port 009; 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→radiator 6→cooler 10→battery water pump 18; electric drive water pump 16→battery-electric drive assembly→electric drive water pump 16.

[0067] In this mode, the air-conditioning circuit 7 can be connected according to the temperature control requirements in one of the aforementioned cooling mode (single passenger compartment cooling), heating mode and defrost mode, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 is that the input valve port a is connected to the second output valve port b, so that a variety of comprehensive circuits are formed under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can cool the passenger compartment and cool the power battery 17 through the radiator 6, and the battery-electric drive assembly stores heat at this time; in the heating mode, the heat absorbed from the environment and the heat exchange between the cooler 10 and the battery circuit 2 is needed to heat the passenger compartment. At the same time, based on the conduction of the water heating circuit 3, the heater 20 can also be used to independently heat the passenger compartment.

[0068] See also Figure 5 In the fifth working 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; 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.

[0069] In this mode, the air-conditioning circuit 7 can be connected according to the temperature control requirements in one of the aforementioned cooling mode (single passenger compartment cooling), heating mode and defrost mode, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 is that the input valve port a is connected to the second output valve port b, so that a variety of comprehensive circuits are formed under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can cool the passenger compartment and dissipate the heat of 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 achieve passenger compartment heating. At the same time, based on the conduction of the water heating circuit 3, the heater 20 can also be used to independently heat the passenger compartment.

[0070] See also Figure 6In 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; the sixth port 006 is connected to the seventh port 007; the sixth working state has some of the same functions as the ninth working state described below, so it will not be used under normal circumstances and will not be described in detail here.

[0071] See also Figure 7 In the seventh working 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; 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→radiator 6→cooler 10→electric drive water pump 16.

[0072] In this mode, the air-conditioning circuit 7 can be connected according to one of the aforementioned cooling mode (single passenger compartment cooling), heating mode and defrost mode according to the temperature control requirements, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 can also be connected according to the temperature control requirements according to the aforementioned three conduction states, so that a variety of comprehensive circuits are formed under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can cool the passenger compartment, and realize the heating and temperature equalization of the power battery 17, and the cooling of the battery-electric drive assembly; in the heating mode, the air-conditioning circuit 7 absorbs the heat from the environment and the heat absorbed by the heat exchange between the cooler 10 and the electric drive circuit 1 to heat the passenger compartment. At the same time, based on the conduction of the water heating circuit 3, the heater 20 can also be used to heat the power battery 17 and the passenger compartment independently or synchronously.

[0073] See also Figure 8 In the eighth working 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; the eighth port 008 is connected to the ninth port 009; 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→battery water pump 18; electric drive water pump 16→battery-electric drive assembly→electric drive water pump 16.

[0074] In this mode, the air-conditioning circuit 7 can be connected according to one of the aforementioned cooling mode, heating mode and defrost mode according to the temperature control requirements, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 can also be connected according to the temperature control requirements according to the aforementioned three conduction states, thereby forming a variety of comprehensive circuits under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can realize independent or synchronous cooling of the power battery 17 and the passenger compartment and battery temperature equalization. At this time, the battery-electric drive always stores heat; in the heating mode, the heat absorbed by the air-conditioning circuit 7 from the environment and the heat exchange between the cooler 10 and the battery circuit 2 is used for heating the passenger compartment; based on the conduction 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.

[0075] See also Fig. 9 In the ninth working 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; 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.

[0076] In this mode, the air-conditioning circuit 7 can be connected according to the temperature control requirements in one of the aforementioned cooling mode (single passenger compartment cooling), heating mode and defrost mode, and the conduction state of the three-way proportional valve 27 at the water heating circuit 3 is that the input valve port a is connected to the second output valve port b, so that a variety of comprehensive circuits are formed under the coordinated cooperation of the circuit connected by the ten-way valve 4, the air-conditioning circuit 7 and the water heating circuit 3, which can cool the passenger compartment and heat the power battery 17 by 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 achieve passenger compartment heating. At the same time, based on the conduction of the water heating circuit 3, the heater 20 can also be used to independently heat the passenger compartment.

[0077] See also Fig.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; the ninth port 009 is connected to the tenth port 010; the tenth working state has some of the same functions as the aforementioned fifth working state, so it will not be used under normal circumstances and will not be described in detail here.

[0078] It needs to be explained that, based on the above content, the thermal management system corresponds to multiple circuits. The embodiment of the present application operates together through multiple circulation flow paths to form multiple comprehensive circuits. When making specific selections, it is necessary to consider various factors such as the current needs of the vehicle or driving conditions, environmental conditions, etc. The architecture structure proposed in the embodiment of the present application is simple, but the circuit connections are rich, which can greatly meet the user's functional requirements for the thermal management system.

[0079] Example 2 See 12- Fig.14 Based on a direct heat pump thermal management system architecture based on a ten-way valve in Example 1, this application embodiment proposes a ten-way valve structure, which includes: A valve body 41, wherein the valve body 41 has an installation cavity 42 therein; a side wall of the valve body 41 is provided with ten valve ports 43 along its circumference, and each valve port 43 is connected to the installation cavity 42; The valve core 44 is rotatably disposed in the mounting cavity 42 and has five independently disposed fluid channels 45 therein; each fluid channel 45 can be communicated with a different valve port 43; The valve body upper cover 46 is disposed on the valve core 44 and connected to the top end surface of the valve body 41 through a connecting piece 47 .

[0080] 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 and integrated in a regular structure without occupying too much space. A seal 48 is provided in the installation cavity 42 in the valve body 41, and the seal 48 is used to increase the sealing performance of the valve core 44 and its installation.

[0081] The aforementioned multiple fluid channels 45 are arranged inside the valve core 44. When the actuator connected to the driving end 451 at the top of the valve core 44 drives the valve core 44 to rotate, different fluid channels 45 will follow the angle of rotation and connect different valve ports 2 to form a conductive fluid path.

[0082] The valve body cover 46 is installed on the valve body 41 through the connecting piece 8, thereby sealing the installation cavity 42. A through hole corresponding to the driving end 451 is opened in the middle of the valve body cover 46, so that it can extend outward from the through hole and connect with an external actuator; the connecting piece 47 used here can be a bolt or other connecting piece, which is not specifically limited here.

[0083] In a preferred embodiment, the ten valve ports 44 are sequentially the first port 001 to the tenth port 010, and the five liquid passages 46 are sequentially the first liquid passage 401 to the fifth liquid passage 405; Specifically, in the embodiments of this application, see Fig.12 and Fig.13 Since the valve core 44 is rotatably connected to the valve body 41, the connection relationship between the liquid circuit and the valve port 43 is not unique in essence, so: the first liquid circuit 401 can connect the first port 001 with the second port 002; the second liquid circuit 402 can connect the third port 003 with the tenth port 010; the third liquid circuit 403 can connect the fourth port 004 with the seventh port 007; the fourth liquid circuit 404 can connect the fifth port 005 with the sixth port 006; the fifth liquid circuit 405 can connect the eighth port 008 with the tenth port 009.

[0084] It should be explained that the valve port 44 is further limited to the first to tenth valve ports only for the convenience of explaining the coordination between the liquid circuit and the valve port 44. In essence, the valve port 44 has no essential distinction. Correspondingly, the further limitation of the liquid circuit channel 45 is also the same. In addition, there is a corresponding coordination relationship between the various liquid circuits (in practical applications, multiple circuits need to be connected simultaneously). In the early stage of design, according to the specific design of the vehicle thermal management system, the conduction relationship of each circuit can be matched with the required working mode to ensure that the ten-way valve 4 can adapt to the conduction of multiple circuits. Therefore, this application does not impose too many restrictions on the liquid circuit design.

[0085] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A direct heat pump thermal management system architecture based on a ten-way valve, characterized in that: The thermal management system architecture comprises at least: an electric drive circuit (1) and a battery circuit (2); The battery circuit (2) is connected to the water heating circuit (3) via a three-way proportional valve (27); The electric drive circuit (1) and the battery circuit (2) can be connected via 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; a rotatable valve core is disposed inside the ten-way valve (4), and a plurality of independently disposed fluid channels are formed inside the valve core; When the valve core rotates, different fluid channels can connect two different valve ports, so that the electric drive circuit (1) and the battery circuit (2) can be connected according to the working mode of the thermal management system, and cooperate to control the three-way proportional valve (27) to meet different temperature control requirements of the thermal management system.

2. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 1 is characterized in that: The ten valve ports of the ten-way valve (4) sequentially form a first port (001) to a tenth port (010); The electric drive circuit (1) is respectively connected to the seventh port (007) and the tenth port (010); and the battery circuit (2) is respectively connected to the first port (001) and the eighth port (008).

3. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 2 is characterized in that: The thermal management system architecture further comprises: a heat dissipation circuit (5), the heat dissipation circuit (5) comprising at least one radiator (6), and two ends of the radiator (6) are respectively connected to the third port (003) and the fourth port (004) of the ten-way valve.

4. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 3 is characterized in that: The thermal management system architecture further comprises: an air conditioning circuit (7), the air conditioning circuit (7) comprising at least: a compressor (8), a built-in condenser (9), a cooler (10), and a gas-liquid separator (11) which are sequentially connected to form a circulation circuit; 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 the input end thereof 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).

5. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 4 is characterized in that: The air conditioning circuit (7) further comprises: An external condenser (26) connected in parallel to both sides of the built-in condenser (9); an evaporator (12) connected in parallel on both sides of the cooler (10); A solenoid valve (13) is provided on the connection pipelines between 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), and a second electronic expansion valve (15) is provided on the connection pipeline of the evaporator (12), and the second electronic expansion valve (15) is located on a side of the evaporator (12) away from the gas-liquid separator (11).

6. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 4 is characterized in that: The electric drive circuit (1) comprises at least: a battery-electric drive assembly and an electric drive water pump (16) connected to each other; the input end of the electric drive water pump (16) is connected to the tenth port (010), and the output end of the battery-electric drive assembly is connected to the seventh port (007); The battery circuit (2) comprises 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); The water heating circuit (3) is connected in parallel to 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; The output end of the warm air 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 of the three-way proportional valve (27), the warm air core (21) is connected to the first output valve port of the three-way proportional valve (27), and the second output valve port of the three-way proportional valve (27) is connected to the input end of the battery water pump (18).

7. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 6 is characterized in that: The thermal management system architecture further comprises: a first auxiliary circuit (22), wherein two ends of the first auxiliary circuit (22) 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 two ends of the second heat exchange channel (102); A second auxiliary circuit (23), wherein two ends of the second auxiliary circuit (23) are respectively connected to the fifth port (005) and the sixth port (006) of the ten-way valve (4).

8. The direct heat pump thermal management system architecture based on a ten-way valve according to claim 7 is characterized in that: The thermal management system architecture has multiple operating modes; In one of the working 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).

9. A ten-way valve structure, characterized in that: Applicable to the direct heat pump thermal management system architecture based on the ten-way valve according to any one of claims 1 to 8, the ten-way valve structure comprises: A valve body (41), wherein the valve body (41) has an installation cavity (42) inside; a side wall of the valve body (41) is provided with ten valve ports (43) along its circumference, and each of the valve ports (43) is connected to the installation cavity (42); A valve core (44), the valve core (44) being rotatably disposed in the mounting cavity (42), and having five independently disposed fluid channels (45) therein; each of the fluid channels (45) being capable of communicating with a different valve port (43); A valve body upper cover (46), wherein the valve body upper cover (46) is arranged on the valve core (44) and connected to the top end surface of the valve body (41) via a connecting piece (47).

10. A ten-way valve structure according to claim 9, characterized in that: The ten valve ports (43) are sequentially a first port (001) to a tenth port (010), and the five liquid passages (45) are sequentially a first liquid passage (401) to a fifth liquid passage (405); The first liquid circuit (401) can connect the first port (001) with the second port (002); the second liquid circuit (402) can connect the third port (003) with the tenth port (010); the third liquid circuit (403) can connect the fourth port (004) with the seventh port (007); the fourth liquid circuit (404) can connect the fifth port (005) with the sixth port (006); and the fifth liquid circuit (405) can connect the eighth port (008) with the ninth port (009).

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