Integrated R290 vehicle heat pump air-conditioning system and control method thereof

Abstract

The invention provides an integrated R290 vehicle heat pump air conditioning system and a control method thereof, and relates to the technical field of air conditioners and heat management systems. According to the system, a refrigerant circulation system communicates with a first refrigerating fluid circulation heat system, a second refrigerating fluid circulation heat system and a third refrigerating fluid circulation heat system, and the refrigerating capacity and the heating capacity of a refrigerant can be transmitted among the first refrigerating fluid circulation heat system, the second refrigerating fluid circulation heat system and the third refrigerating fluid circulation heat system; therefore, electric control of a motor and related elements in the refrigerating fluid circulation third heat system are cooled, a battery pack is cooled or heated, and the requirements of various modes of an air conditioner in a cab can be met. The problems that the risk of flammability exists in the using process of an R290 refrigerant, and an existing air conditioner management system is numerous in parts, complex in pipeline and irregular in heat management control function are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning and thermal management systems, and in particular to an integrated R290 vehicle heat pump air conditioning system and a control method thereof. Background Art

[0002] In recent years, new energy vehicles have developed rapidly. The thermal system with heat pump air conditioning has improved the range of pure electric vehicles due to its energy saving and consumption reduction. It should be pointed out that the GWP (greenhouse effect coefficient) value of R134a refrigerant is 1400, which does not meet environmental protection requirements; while the GWP (greenhouse effect coefficient) value of R290 refrigerant is 3, which is one of the main options for replacing refrigerants in the future.

[0003] However, there are flammable risks in the use of R290 refrigerant, and the existing air-conditioning management system has many parts, complex pipelines and incomplete thermal management control functions. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide an integrated R290 vehicle heat pump air conditioning system and a control method thereof.

[0005] To achieve the above object, the present invention provides the following solutions: An integrated R290 vehicle heat pump air conditioning system comprises: a refrigerant circulation system, a first refrigerant circulation heat system, a second refrigerant circulation heat system and a third refrigerant circulation heat system, wherein the refrigerant circulation system comprises an electric compressor, a water-cooled condenser, a liquid storage dryer, an expansion valve and a water-cooled evaporator, and the first refrigerant circulation heat system comprises: a first electronic water pump, a water heater, a first water tee, a first ten-way water valve and a seventh water tee; The outlet end of the first electronic water pump is connected to the inlet end of the water-cooled evaporator, the outlet end of the water-cooled evaporator is connected to the inlet end of the water heater, the outlet end of the water heater is connected to the inlet end of the first water tee, the two outlet ends of the first water tee are respectively connected to the two inlet ends m# of the first ten-way water valve, the two inlet ends of the seventh water tee are respectively connected to the second thermal system of the refrigerant circulation, and the outlet end of the seventh water tee is connected to the inlet end of the first electronic water pump.

[0006] Preferably, the refrigerant circulation second thermal system comprises: a second electronic water pump, a second water tee, a third water tee, a fourth water tee, a fifth water tee and a 20th water valve; Among them, the outlet end of the second electronic water pump is connected to the inlet end of the water-cooled condenser, the outlet end of the water-cooled condenser is connected to the inlet end of the third water tee, one outlet end of the third water tee is connected to an inlet end n# of the first ten-way water valve; the other outlet end of the third water tee is connected to the inlet end of the second water tee, and two outlet ends of the second water tee are connected to two inlet ends n# of the first ten-way water valve; two outlet ends n# of the 20th water valve are connected to two inlet ends of the fourth water tee, the outlet end of the fourth water tee is connected to an inlet end of the fifth water tee, one outlet end n# of the 20th water valve is connected to another inlet end of the fifth water tee, the outlet end of the fifth water tee is connected to the inlet end of the second electronic water pump, and two outlet ends m# of the 20th water valve are connected to two inlet ends of the seventh water tee.

[0007] Preferably, the third heat system of the refrigerant circulation comprises: Low temperature radiator, electronic fan, motor and electronic control and related components, three-way water valve, third electronic water pump, battery pack, sixth water three-way pipe, cooler, internal heat exchanger and blower; The outlet end f# of the first ten-way water valve is connected to the inlet end of the low-temperature radiator, the outlet end of the low-temperature radiator is connected to the inlet end f# of the second ten-way water valve, and the electronic fan is arranged on the ventilation port side of the low-temperature radiator; the outlet end g# of the first ten-way water valve is connected to the inlet end of the motor electronic control and related components, the outlet end of the motor electronic control and related components is connected to the inlet end g# of the twentieth water valve, the outlet end k# of the first ten-way water valve is connected to the inlet end b of the three-way water valve, the outlet end c of the three-way water valve is connected to the inlet end of the third electronic water pump, the outlet end of the third electronic water pump is connected to the inlet end of the battery pack, and the electric The outlet end of the pool package is connected to the inlet end of the sixth water tee, one outlet end of the sixth water tee is connected to the inlet end a of the three-way water valve, and the other outlet end of the sixth water tee is connected to the inlet end k# of the twentieth water valve; the outlet end d# of the first tenth water valve is connected to the inlet end of the cooler, and the outlet end of the cooler is connected to the inlet end d# of the twentieth water valve; the outlet end e# of the first tenth water valve is connected to the inlet end of the internal heat exchanger, and the outlet end of the internal heat exchanger is connected to the inlet end e# of the twentieth water valve; the blower is arranged on one side of the vent of the cooler and the internal heat exchanger.

[0008] Preferably, the low-temperature radiator, motor electronic control and related components, battery pack, cooler, and internal heat exchanger are all connected in parallel to construct a refrigerant circuit.

[0009] A control method for an integrated R290 vehicle heat pump air conditioning system, the method comprising: Set multiple working modes according to user needs; The working state of the integrated heat pump air conditioning system with double ten-way water valves is controlled according to the determined different working modes.

[0010] Preferably, the multiple working modes are set according to user needs, including: Obtain passenger compartment requirements, battery requirements, and motor module requirements respectively; Different operating modes are set according to the different acquired passenger compartment requirements, battery requirements, and motor and electronic control and related component requirements.

[0011] Preferably, the number of the operating modes is twenty-one.

[0012] Preferably, the working modes include: Mode 1: passenger compartment demand 0, battery demand U, motor module demand Y; 1' mode: passenger compartment demand 0, battery demand U, motor module demand Y; Mode 2: passenger compartment demand Q, battery demand U, motor module demand Y; 2' mode: passenger compartment demand Q, battery demand U, motor module demand Y; 2” mode: passenger compartment demand Q, battery demand U, motor module demand Y; 3 mode: passenger compartment demand W, battery demand U, motor module demand Y; 4 mode: passenger compartment demand E, battery demand U, motor module demand Y; 5 mode: passenger compartment demand R, battery demand U, motor module demand Y; 6 mode: passenger compartment demand 0, battery demand T, motor module demand Y; 7 mode: passenger compartment demand Q, battery demand T, motor module demand Y; 7' mode: passenger compartment demand Q, battery demand T, motor module demand Y; 7” mode: passenger compartment demand Q, battery demand T, motor module demand Y; 8 modes: passenger compartment demand W, battery demand T, motor module demand Y; 9 mode: passenger compartment demand E, battery demand T, motor module demand Y; 10 modes: passenger compartment demand R, battery demand T, motor module demand Y; Mode 11: passenger compartment demand 0, battery demand Q, motor module demand Y; 11' mode: passenger compartment demand 0, battery demand Q, motor module demand Y; 12 modes: passenger compartment demand Q, battery demand Q, motor module demand Y; 12' mode: passenger compartment demand Q, battery demand Q, motor module demand Y; 12” mode: passenger compartment demand Q, battery demand Q, motor module demand Y; 13 mode: passenger compartment demand W, battery demand Q, motor module demand Y; 14 mode: passenger compartment demand E, battery demand Q, motor module demand Y; 15 mode: passenger compartment demand R, battery demand Q, motor module demand Y; 16 mode: passenger compartment demand 0, battery demand I, motor module demand Y; 17 mode: passenger compartment demand Q, battery demand I, motor module demand Y; 18 mode: passenger compartment demand W, battery demand I, motor module demand Y; 18' mode: passenger compartment demand W, battery demand I, motor module demand Y; 19 mode: passenger compartment demand E, battery demand I, motor module demand Y; 20 mode: passenger compartment demand R, battery demand I, motor module demand Y; Mode 21: Passenger compartment requirement 0, battery requirement U, motor module requirement 0; Among them, 0 represents no demand or ventilation, Q represents heating, W represents cooling, E represents cooling and dehumidification, R represents heating and dehumidification, U represents no demand, T represents average temperature, I represents cooling, and Y represents heat dissipation.

[0013] The present invention discloses the following technical effects: The present invention provides an integrated R290 vehicle heat pump air-conditioning system and a control method thereof. The system comprises: a refrigerant circulation system, a first heat system of a refrigerant circulation, a second heat system of a refrigerant circulation and a third heat system of a refrigerant circulation. The refrigerant circulation system comprises an electric compressor, a water-cooled condenser, a liquid storage dryer, an expansion valve and a water-cooled evaporator. The first heat system of the refrigerant circulation comprises: a first electronic water pump, a water heater, a first water tee, a first ten-way water valve and a seventh water tee; the outlet end of the first electronic water pump is connected to the inlet end of the water-cooled evaporator, the outlet end of the water-cooled evaporator is connected to the inlet end of the water heater, the outlet end of the water heater is connected to the inlet end of the first water tee, the two outlet ends of the first water tee are respectively connected to the two inlet ends m# of the first ten-way water valve, the two inlet ends of the seventh water tee are respectively connected to the second heat system of the refrigerant circulation, and the outlet end of the seventh water tee is connected to the inlet end of the first electronic water pump. The present invention can fully meet the needs of users under the premise of ensuring the heating, cooling, dehumidification and defogging functions and comfort of the vehicle air conditioning system through the refrigerant circulation system, the first heat system of the refrigerant circulation, the second heat system of the refrigerant circulation and the third heat system of the refrigerant circulation, and meet the requirements of energy saving and emission reduction, environmental protection, high efficiency and consumption reduction, easy assembly, easy maintenance, good durability, high reliability and lightweight, and its control method is intelligent, complete and reasonable. In addition, the present invention uses the future new type of alternative refrigerant R290 for automobiles, which is technically original. The main scenarios used by the scheme are also typical, concise and rational, which is conducive to the optimal design of the double ten-way water valve and the simplification of the control logic. The thermal system scheme design and its control method are both advanced. Furthermore, the integrated R290 vehicle heat pump air-conditioning system with double ten-way water valves of the present invention and the control method thereof combine multiple thermal management functions, and the control method thereof is complete, reasonable and scientific. At the same time, due to the adoption of the integrated module concept, the layout space of the heat pump air-conditioning system components can be effectively reduced, which is conducive to lightweighting, and is conducive to reducing the refrigerant resistance and refrigerant resistance of the air-conditioning system and the thermal management system, thereby effectively improving the energy efficiency ratio of the air-conditioning system, achieving the purpose of energy saving and consumption reduction, and ensuring good cooling, heating and ventilation effects.

[0014] The present invention not only meets the goal of energy conservation and emission reduction, but also can solve the problems of numerous parts, complex piping and incomplete thermal management control functions in the existing air-conditioning management system; in addition, since the parts and assemblies of the refrigerant circulation system of the integrated solution can be arranged in the engine compartment of the whole vehicle, the refrigerant filling amount can be effectively reduced, and at the same time, the refrigerant leakage amount can be reduced, which greatly reduces the flammability risk in the use of R290 refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the principle of an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the principle of mode 1 in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Figure 3 It is a principle schematic diagram of the 1' mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the principle of the 2nd mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the principle of the 2' mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the principle of the 2" mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the principle of 3 modes in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Figure 8 It is a principle schematic diagram of 5 modes in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and its control method according to an embodiment of the present invention; Fig. 9 It is a schematic diagram of the principle of 6 modes in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.10 It is a schematic diagram of the principle of 7 modes in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.11 It is a schematic diagram of the principle of the 7' mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.12It is a schematic diagram of the principle of the 7" mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.13 It is a principle schematic diagram of 8 modes in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.14 It is a principle schematic diagram of 10 modes in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.15 It is a principle schematic diagram of 12 modes in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.16 It is a principle schematic diagram of the 12' mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.17 It is a schematic diagram of the principle of the 12" mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.18 It is a principle schematic diagram of mode 13 in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.19 It is a schematic diagram of the principle of mode 15 in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig. 20 It is a principle schematic diagram of 16 modes in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig.21 It is a principle schematic diagram of mode 17 in an integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and a control method thereof according to an embodiment of the present invention; Fig. 22 It is a principle schematic diagram of the 18 modes in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.23 It is a schematic diagram of the principle of the 20 mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.24 It is a principle schematic diagram of the 21 mode in the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves and the control method thereof according to an embodiment of the present invention; Fig.25It is a schematic diagram of the first expansion principle of the integrated R290 vehicle heat pump air conditioning system with double ten-way water valves according to an embodiment of the present invention; Fig.26 It is a schematic diagram of a second expansion principle of an integrated R290 vehicle heat pump air conditioning system with a double ten-way water valve according to an embodiment of the present invention; Fig. 27 A schematic diagram of a third expansion principle of an integrated R290 vehicle heat pump air conditioning system with a double ten-way water valve according to an embodiment of the present invention; Fig.28 It is a schematic diagram of a fourth expansion principle of an integrated R290 vehicle heat pump air conditioning system with a double ten-way water valve according to an embodiment of the present invention; Fig.29 A simplified diagram of a parallel circuit of a low-temperature radiator, a motor electronic control and related components, a battery pack, a cooler, and an internal heat exchanger of a refrigerant in an embodiment of the present invention; Fig.30 Schematic diagram of the ten-way water valve and its connection port & valve core structure according to an embodiment of the present invention.

[0017] Description of reference numerals: A. Refrigerant circulation system; 1. Electric compressor; 2. Water-cooled condenser; 3. Liquid storage dryer; 4. Expansion valve; 5. Water-cooled evaporator; B. First thermal system of refrigerant circulation; 11. First electronic water pump; 12. Water heater; 13. First ten-way water valve; 51. First water tee; 57. Seventh water tee; C. Second thermal system of refrigerant circulation; 31. Second electronic water pump; 32. Twentieth water valve; 52. Second water tee; 53. Third water tee; 54. Fourth water tee; 55. Fifth water tee; D. Third thermal system of refrigerant circulation; 21. Low-temperature radiator; 22. Internal heat exchanger; 23. Cooler; 24. Three-way water valve; 25. Third electronic water pump; 41. Motor electronic control and related components; 42. Battery pack; 61. Electronic fan; 62. Blower. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1As shown, the present invention provides an integrated R290 vehicle heat pump air conditioning system, including: a refrigerant circulation system A, a first heat system B of a refrigerant circulation, a second heat system C of a refrigerant circulation and a third heat system D of a refrigerant circulation, wherein the refrigerant circulation system A includes an electric compressor 1, a water-cooled condenser 2, a liquid storage dryer 3, an expansion valve 4 and a water-cooled evaporator 5, wherein the refrigerant circulation system A is respectively connected to the first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation, so as to transfer the cooling capacity and the heating value of the refrigerant to the first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation respectively. A first thermal system B, a second thermal system C for refrigerant circulation and a third thermal system D for refrigerant circulation; and, the cooling capacity and heating value of the refrigerant circulation system A can be transferred among the first thermal system B for refrigerant circulation, the second thermal system C for refrigerant circulation and the third thermal system D for refrigerant circulation, so as to realize cooling of the motor electronic control and related components 41 in the third thermal system D for refrigerant circulation, and cooling or heating of the battery pack 42, and can also meet the requirements of various modes of the cab air conditioning; the third thermal system D for refrigerant circulation is used to dissipate the waste heat of the motor electronic control and related components 41 into the air or utilize the waste heat. The heat of the water heater 12 (if any) of the first heat system B of the refrigerant circulation can be transferred to the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation, so as to heat the battery pack 42 and meet the heating requirements of various modes of the cab air conditioning; the refrigerant circulation system A includes an electric compressor 1, a water-cooled condenser 2, a liquid storage dryer 3, an expansion valve 4 and a water-cooled evaporator 5; wherein, the exhaust end of the electric compressor 1 is connected to the refrigerant inlet end of the water-cooled condenser 2, the refrigerant outlet end of the water-cooled condenser 2 is connected to the inlet end of the liquid storage dryer 3, the outlet end of the liquid storage dryer 3 is connected to the inlet end of the expansion valve 4, the outlet end of the expansion valve 4 is connected to the refrigerant inlet end of the water-cooled evaporator 5, and the refrigerant outlet end of the water-cooled evaporator 5 is connected to the intake end of the electric compressor 1.

[0021] The first thermal system B of the refrigerant circulation comprises: A first electronic water pump 11, a water heater 12, a first water tee 51, a first ten-way water valve 13 and a seventh water tee 57; The outlet end of the first electronic water pump 11 is connected to the inlet end of the water-cooled evaporator 5, the outlet end of the water-cooled evaporator 5 is connected to the inlet end of the water heater 12, the outlet end of the water heater 12 is connected to the inlet end of the first water tee 51, the two outlet ends of the first water tee 51 are respectively connected to the two inlet ends m# of the first ten-way water valve 13, the two inlet ends of the seventh water tee 57 are respectively connected to the second thermal system C of the refrigerant circulation, and the outlet end of the seventh water tee 57 is connected to the inlet end of the first electronic water pump 11.

[0022] Furthermore, the refrigerant circulation second thermal system C comprises: a second electronic water pump 31, a second water tee 52, a third water tee 53, a fourth water tee 54, a fifth water tee 55 and a twentieth water valve 32; Among them, the outlet end of the second electronic water pump 31 is connected to the inlet end of the water-cooled condenser 2, the outlet end of the water-cooled condenser 2 is connected to the inlet end of the third water tee 53, one outlet end of the third water tee 53 is connected to an inlet end n# of the first ten-way water valve 13; the other outlet end of the third water tee 53 is connected to the inlet end of the second water tee 52, and the two outlet ends of the second water tee 52 are connected to the two inlet ends n# of the first ten-way water valve 13; the two outlet ends n# of the 20th water valve 32 are connected to the two inlet ends of the fourth water tee 54, the outlet end of the fourth water tee 54 is connected to an inlet end of the fifth water tee 55, one outlet end n# of the 20th water valve 32 is connected to the other inlet end of the fifth water tee 55, the outlet end of the fifth water tee 55 is connected to the inlet end of the second electronic water pump 31, and the two outlet ends m# of the 20th water valve 32 are connected to the two inlet ends of the seventh water tee 57.

[0023] The first point that needs to be explained is that the two m# of the first water-way valve 13 represent two branches of the same water outlet, which belong to the same water outlet and are generally realized by connecting a multi-way pipe outside the water valve; the three n# represent three branches of the same water outlet, which belong to the same water outlet and are generally realized by connecting a three-way pipe outside the water valve; the same is true for the twentieth water-way valve 32.

[0024] The second point that needs to be explained is that the two m# and three n# of the first water-passing valve 13 are all water inlets; while the two m# and three n# of the twentieth water-passing valve 32 are all water outlets; among them, the three n# are interconnected, and the same applies to m#.

[0025] Further, the refrigerant circulation third thermal system D comprises: Low temperature radiator 21, electronic fan 61, motor electronic control and related components 41, three-way water valve 24, third electronic water pump 25, battery pack 42, sixth water three-way pipe, cooler 23, internal heat exchanger and blower 62; The outlet end f# of the first ten-way water valve 13 is connected to the inlet end of the low-temperature radiator 21, and the outlet end of the low-temperature radiator 21 is connected to the inlet end f# of the second ten-way water valve 32, and the electronic fan 61 is arranged on the ventilation side of the low-temperature radiator 21; the outlet end g# of the first ten-way water valve 13 is connected to the inlet end of the motor electronic control and related components 41, and the outlet end of the motor electronic control and related components 41 is connected to the inlet end g# of the twentieth water valve 32, the outlet end k# of the first ten-way water valve 13 is connected to the inlet end b of the three-way water valve 24, the outlet end c of the three-way water valve 24 is connected to the inlet end of the third electronic water pump 25, and the outlet end of the third electronic water pump 25 is connected to the inlet end of the battery pack 42. The outlet end of the battery pack 42 is connected to the inlet end of the sixth water tee, one outlet end of the sixth water tee is connected to the inlet end a of the three-way water valve 24, and the other outlet end of the sixth water tee is connected to the inlet end k# of the twentieth water-way valve 32; the outlet end d# of the first tenth water-way valve 13 is connected to the inlet end of the cooler 23, and the outlet end of the cooler 23 is connected to the inlet end d# of the twentieth water-way valve 32; the outlet end e# of the first tenth water-way valve 13 is connected to the inlet end of the internal heat exchanger, and the outlet end of the internal heat exchanger is connected to the inlet end e# of the twentieth water-way valve 32; the blower 62 is arranged on one side of the vent of the cooler 23 and the internal heat exchanger.

[0026] Further, such as Fig.29 As shown, the low-temperature radiator 21, the motor electronic control and related components 41, the battery pack 42, the cooler 23, and the internal heat exchanger are all connected in parallel to construct a refrigerant circuit.

[0027] Specifically, the valve core shapes or specific structures of the first water-through valve 13 and the twentieth water-through valve 32 can be completely consistent, and the control method can also be kept synchronized in this case, so as to simplify the control procedure and reduce the calibration workload; or, the valve core shapes or specific structures of the first water-through valve 13 and the twentieth water-through valve 32 can also be designed to be different according to actual use, or they can be not kept synchronized during control.

[0028] The present invention also provides another embodiment, which provides a control method for an integrated R290 vehicle heat pump air conditioning system, the method comprising: Set multiple working modes according to user needs; The working state of the integrated heat pump air conditioning system with double ten-way water valves is controlled according to the determined different working modes.

[0029] When setting several working modes according to user needs, the passenger compartment needs, battery needs and motor and electronic control module needs are obtained respectively, and different working modes are set according to the different obtained passenger compartment needs, battery needs and motor and electronic control and related components 41 needs; among them, the motor and electronic control and related components 41 needs are the all-in-one needs of the motor, electronic control module, ACDC module and DCAC module.

[0030] The parallel placement of the internal heat exchanger 22 and the cooler 23 is conducive to achieving the various functional requirements of the passenger compartment: in the heat pump mode, the internal heat exchanger 22 and the cooler 23 are connected to hot water at the same time to improve the heating efficiency; in the heating and dehumidification mode, the internal heat exchanger 22 is connected to hot water and the cooler 23 is connected to cold water to meet the requirements of heating and defogging at the same time; in the cooling mode, only the cooler 23 is connected to cold water, and the internal heat exchanger 22 does not work, thereby avoiding safety accidents caused by the wind and water mist when blowing glass. The above advantages, combined with intelligent control, can achieve functional optimization in multiple scenarios. In addition, the parallel water circuit of the motor electronic control and related components 41 and the low-temperature radiator 21 is conducive to avoiding the problem of too low water temperature caused by the motor electronic control and related components 41 being connected in series with the low-temperature radiator 21 in the winter air conditioning heat pump mode, thereby optimizing the working water temperature of the motor electronic control and related components 41, thereby improving the working efficiency of the motor electronic control and related components 41.

[0031] Furthermore, the multiple working modes are set according to user needs, including: Obtain passenger compartment requirements, battery requirements, and motor module requirements respectively; Different working modes are set according to the different acquired passenger compartment requirements, battery requirements and motor and electronic control and related component 41 requirements.

[0032] Furthermore, the number of the working modes is twenty-one.

[0033] Furthermore, the working mode includes: Mode 1: passenger compartment demand 0, battery demand U, motor module demand Y; 1' mode: passenger compartment demand 0, battery demand U, motor module demand Y; Mode 2: passenger compartment demand Q, battery demand U, motor module demand Y; 2' mode: passenger compartment demand Q, battery demand U, motor module demand Y; 2” mode: passenger compartment demand Q, battery demand U, motor module demand Y; 3 mode: passenger compartment demand W, battery demand U, motor module demand Y; 4 mode: passenger compartment demand E, battery demand U, motor module demand Y; 5 mode: passenger compartment demand R, battery demand U, motor module demand Y; 6 mode: passenger compartment demand 0, battery demand T, motor module demand Y; 7 mode: passenger compartment demand Q, battery demand T, motor module demand Y; 7' mode: passenger compartment demand Q, battery demand T, motor module demand Y; 7” mode: passenger compartment demand Q, battery demand T, motor module demand Y; 8 modes: passenger compartment demand W, battery demand T, motor module demand Y; 9 mode: passenger compartment demand E, battery demand T, motor module demand Y; 10 modes: passenger compartment demand R, battery demand T, motor module demand Y; Mode 11: passenger compartment demand 0, battery demand Q, motor module demand Y; 11' mode: passenger compartment demand 0, battery demand Q, motor module demand Y; 12 modes: passenger compartment demand Q, battery demand Q, motor module demand Y; 12' mode: passenger compartment demand Q, battery demand Q, motor module demand Y; 12” mode: passenger compartment demand Q, battery demand Q, motor module demand Y; 13 mode: passenger compartment demand W, battery demand Q, motor module demand Y; 14 mode: passenger compartment demand E, battery demand Q, motor module demand Y; 15 mode: passenger compartment demand R, battery demand Q, motor module demand Y; 16 mode: passenger compartment demand 0, battery demand I, motor module demand Y; 17 mode: passenger compartment demand Q, battery demand I, motor module demand Y; 18 mode: passenger compartment demand W, battery demand I, motor module demand Y; 18' mode: passenger compartment demand W, battery demand I, motor module demand Y; 19 mode: passenger compartment demand E, battery demand I, motor module demand Y; 20 mode: passenger compartment demand R, battery demand I, motor module demand Y; Mode 21: Passenger compartment requirement 0, battery requirement U, motor module requirement U.

[0034] Among them, 0 represents no demand or ventilation, Q represents heating, W represents cooling, E represents cooling and dehumidification, R represents heating and dehumidification, U represents no demand, T represents average temperature, I represents cooling, and Y represents heat dissipation.

[0035] Specifically, according to the set 1 mode - 21 mode, respectively; adjust the refrigerant circulation system A, the refrigerant circulation first thermal system B, the refrigerant circulation second thermal system C and the refrigerant circulation third thermal system D in the integrated R290 vehicle heat pump air-conditioning system with double ten-way water valves.

[0036] Specifically, the motor module requirement described in the current embodiment is the all-in-one requirement of components such as motor, electronic control, ACDC and DCAC.

[0037] The user requirements in the control method of this embodiment are shown in the following Table 1, which is a user requirement table. Table 1 is as follows: Table 1 User requirements table Specifically, Fig.30 As shown in the figure, it shows the schematic diagram of the connection of the ten-way valve. For example, m#-k# means that m is connected with k.

[0038] like Figure 2 As shown, in mode 1 (passenger compartment demand 0, battery demand U, motor module demand Y) (not using motor waste heat), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 2. Table 2 is a status table of the ten-way water valve and the three-way water valve 24 in mode 1. Table 2 is as follows: Table 2 Status table of ten-way water valve and three-way water valve 24 in mode 1 Parts Name state The first water valve 13 m#-k# are connected; n#-f#, g# are connected 20th water valve 32 k#-m# are connected; f#, g#-n# are connected Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, the first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first water-way valve 13, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth water-way valve 32 and other main components are connected through water pipes to form a refrigerant circuit. The motor electronic control and related components 41 transfer heat to the refrigerant, and the low-temperature radiator 21 and the electronic fan 61 work together to release the heat of the refrigerant into the air, thereby realizing the function or purpose of cooling the motor electronic control and related components 41.

[0039] Specifically, if Figure 3 As shown, in the 1' mode (passenger compartment demand 0, battery demand U, motor module demand Y) (using motor waste heat), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 3. Table 3 is a status table of the ten-way water valve and the three-way water valve 24 in the 1' mode. Table 3 is as follows: Table 3 Status table of ten-way water valve and three-way water valve 24 in 1' mode Parts Name state The first water valve 13 n#-g#, k# pass 20th water valve 32 g#, k#-n# pass; Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, the first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the main components such as the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the motor electronic control and related components 41, the three-way water valve 24, the third electronic water pump 25, the battery pack 42 and the twentieth water valve 32 are connected by water pipes to form two refrigerant parallel circuits to operate. The refrigerant takes away the heat of the motor electronic control and related components 41, stores and transports it to the battery pack 42, and realizes the function or purpose of dissipating heat to the motor electronic control and related components 41.

[0040] Specifically, if Figure 4 As shown, in mode 2 (passenger compartment demand Q, battery demand U, motor module demand Y) (air source heat pump), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 4. Table 4 is a status table of the ten-way water valve and the three-way water valve 24 in mode 2. Table 4 is as follows: Table 4 Status table of ten-way water valve and three-way water valve 24 in mode 2 Parts Name state The first water valve 13 m#-f# are available; n#-e#, g# are available 20th water valve 32 f#-m# are connected; e#, g#-n# are connected; Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the internal heat exchanger 22, the motor electronic control and related components 41 and the twentieth water valve 32 and other main components are connected by water pipes to form a refrigerant parallel circuit to operate, and the internal heat exchanger 22 heats the air and then blows it out through the blower 62 to achieve the function or purpose of heating the cab; at the same time, the motor electronic control and related components 41 are in a heat storage state, and the heat is transferred to the coolant. In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the low-temperature radiator 21, and the twentieth water valve 32 are connected by water pipes to form a refrigerant circuit, which absorbs heat in the air and can take away the cooling capacity of the water-cooled evaporator 5, thereby realizing the air-conditioning heat pump function.

[0041] Specifically, if Figure 5 As shown, in the 2' mode (passenger compartment demand Q, battery demand U, motor module demand Y) (water source heat pump), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 5. Table 5 is a status table of the ten-way water valve and the three-way water valve 24 in the 2' mode. Table 5 is as follows: Table 5 Status table of ten-way water valve and three-way water valve 24 in 2' mode Parts Name state The first water valve 13 m#-g# are connected; n#-d#, e# are connected 20th water valve 32 g#-m# are connected; d#, e#-n# are connected; Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, in the refrigerant circulation system A, the refrigerant system composed of main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by refrigerant pipes operates, and the heat is transferred to the refrigerant liquid side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant liquid side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the internal heat exchanger 22, the cooler 23, the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant parallel circuit to operate, the internal heat exchanger 22 and the cooler 23 heat the air, and then blow it out through the blower 62, so as to achieve the function or purpose of heating the cab; in addition, the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the motor electronic control and related components 41, and the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant circuit to operate, and the waste heat of the motor electronic control and related components 41 can take away the cooling capacity of the water-cooled evaporator 5, thereby realizing the air conditioning heat pump function, and at the same time realizing the function or purpose of cooling the motor electronic control and related components 41.

[0042] Specifically, if Figure 6 As shown, in the 2" mode (passenger compartment demand Q, battery demand U, motor module demand Y) (water heater 12), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 6, which is a status table of the ten-way water valve and the three-way water valve 24 in the 2" mode. Table 6 is as follows: Table 6 Status table of ten-way water valve and three-way water valve 24 in 2" mode Parts Name state The first water valve 13 m#-d#, e# are available; n#-g# are available 20th water valve 32 d#, e#-m# are connected; g#-n# are connected; Three-way water valve 24 b#-c# is not connected; a#-c# is connected; Among them, the first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the internal heat exchanger 22, the cooler 23 and the twentieth water valve 32 are connected through water pipes to form two refrigerant parallel circuits to operate, the water heater 12 consumes electrical power to heat the refrigerant, the internal heat exchanger 22 and the cooler 23 heat the air respectively, and then blow it out through the blower 62, so as to realize the function or purpose of heating the cab; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the motor electronic control and related components 41 and the twentieth water valve 32 are connected through water pipes to form a refrigerant circuit to operate, the motor electronic control and related components 41 are in a heat storage state, and the heat is transferred to the coolant.

[0043] Specifically, if Figure 7As shown, in the 3 modes (passenger compartment demand W, battery demand U, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 7. Table 7 is a status table of the ten-way water valve and the three-way water valve 24 in the 3 modes. Table 7 is as follows: Table 7 Status table of 10-way water valve and 3-way water valve 24 in 3 modes Parts Name state The first water valve 13 m#-d# are available; n#-f#, g# are available 20th water valve 32 d#-m# are connected; f#, g#-n# are connected; Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23 and the twentieth water valve 32 connected by the water pipe operates, and the cooler 23 cools the air, and then blows it out through the blower 62, so as to realize the function or purpose of cooling the cab.

[0044] In addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor and electronic control and related components 41 and the twentieth water valve 32 and other main components are connected by water pipes to form a refrigerant liquid that runs in parallel, and the heat of the motor and electronic control and related components 41 and the water-cooled condenser 2 is transferred to the low-temperature radiator 21, and the heat is dissipated through the low-temperature radiator 21 and the electronic fan 61, thereby realizing the air-conditioning function and the function or purpose of dissipating the heat of the motor and electronic control and related components 41.

[0045] Specifically, Mode 4 (passenger compartment demand E, battery demand U, motor module demand Y) is the same as Mode 3.

[0046] Specifically, if Figure 8 As shown, in the 5 modes (passenger compartment demand E, battery demand U, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 8. Table 8 is a status table of the ten-way water valve and the three-way water valve 24 in the 5 modes. Table 8 is as follows: Table 8 Status table of 10-way water valve and 3-way water valve 24 in 5 modes Parts Name state The first water valve 13 m#-d# are available; n#-e#, f#, g# are available 20th water valve 32 d#-m# are connected; e#, f#, g#-n# are connected; Three-way water valve 24 b#-c# is not connected; a#-c# is connected; Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23 and the twentieth water valve 32 connected by the water pipe operates, and the cooler 23 cools the air and dehumidifies; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor electronic control and related components 41, the internal heat exchanger The main components such as 22 and the twentieth water valve 32 are connected by water pipes to form a parallel refrigerant circuit. On the one hand, the internal heat exchanger 22 heats the cold air blown out from the cooler 23, and then blows it out through the blower 62, so as to realize the function or purpose of heating and defrosting the cab; on the other hand, the excess heat of the water-cooled condenser 2 and the motor electronic control and related components 41 is transferred to the low-temperature radiator 21, and the heat is dissipated through the low-temperature radiator 21 and the electronic fan 61, so as to realize the function or purpose of cooling the motor electronic control related components 41.

[0047] Specifically, if Fig. 9 As shown, in mode 6 (passenger compartment demand 0, battery demand T, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 9. Table 9 is a status table of the ten-way water valve and the three-way water valve 24 in mode 6. Table 9 is as follows: Table 9 Status table of 10-way water valve and 3-way water valve 24 in 6 modes Parts Name state The first water valve 13 m#-k# are connected; n#-f#, g# are connected 20th water valve 32 k#-m# are connected; f#, g#-n# are connected Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, the first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first water-way valve 13, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth water-way valve 32 and other main components are connected through water pipes to form a refrigerant circuit. The motor electronic control and related components 41 transfer heat to the refrigerant, and the low-temperature radiator 21 and the electronic fan 61 work together to release the heat of the refrigerant into the air, thereby realizing the function or purpose of cooling the motor electronic control and related components 41.

[0048] In addition, the third electronic water pump 25 , the battery pack 42 , the three-way water valve 24 and other main components are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of equalizing the temperature of the battery pack 42 .

[0049] Specifically, if Fig.10 As shown, in mode 7 (passenger compartment demand Q, battery demand T, motor module demand Y) (air source heat pump), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 10. Table 10 is a status table of the ten-way water valve and the three-way water valve 24 in mode 7. Table 10 is as follows: Table 10 Status table of 10-way water valve and 3-way water valve 24 in 7 modes Parts Name state The first water valve 13 m#-f# are available; n#-e#, g# are available 20th water valve 32 f#-m# are connected; e#, g#-n# are connected; Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the internal heat exchanger 22, the motor electronic control and related components 41 and the twentieth water valve 32 and other main components are connected by water pipes to form a refrigerant parallel circuit to operate, and the internal heat exchanger 22 heats the air and then blows it out through the blower 62 to achieve the function or purpose of heating the cab; at the same time, the motor electronic control and related components 41 are in a heat storage state, and the heat is transferred to the coolant. In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the low-temperature radiator 21, and the twentieth water valve 32 are connected by water pipes to form a refrigerant circuit, which absorbs heat in the air and can take away the cooling capacity of the water-cooled evaporator 5, thereby realizing the air-conditioning heat pump function.

[0050] In addition, the third electronic water pump 25 , the battery pack 42 , the three-way water valve 24 and other main components are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of equalizing the temperature of the battery pack 42 .

[0051] Specifically, if Fig.11 As shown, in the 7' mode (passenger cabin demand Q, battery demand T, motor module demand Y) (water source heat pump), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 11. Table 11 is a status table of the ten-way water valve and the three-way water valve 24 in the 7' mode. Table 11 is as follows: Table 11 Status table of ten-way water valve and three-way water valve 24 in 7' mode Parts Name state The first water valve 13 m#-g# are connected; n#-d#, e# are connected 20th water valve 32 g#-m# are connected; d#, e#-n# are connected; Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, in the refrigerant circulation system A, the refrigerant system composed of main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by refrigerant pipes operates, and the heat is transferred to the refrigerant liquid side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant liquid side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the internal heat exchanger 22, the cooler 23, the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant parallel circuit to operate, the internal heat exchanger 22 and the cooler 23 heat the air, and then blow it out through the blower 62, so as to achieve the function or purpose of heating the cab; in addition, the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the motor electronic control and related components 41 and the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant circuit to operate, and the waste heat of the motor electronic control and related components 41 can take away the cooling capacity of the water-cooled evaporator 5, thereby realizing the air conditioning heat pump function, and at the same time realizing the function or purpose of cooling the motor electronic control and related components 41.

[0052] In addition, the third electronic water pump 25 , the battery pack 42 , the three-way water valve 24 and other main components are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of equalizing the temperature of the battery pack 42 .

[0053] Specifically, if Fig.12 As shown, in the 7" mode (passenger compartment demand Q, battery demand T, motor module demand Y) (water heater 12), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 12. Table 12 is a status table of the ten-way water valve and the three-way water valve 24 in the 7" mode. Table 12 is as follows: Table 12 Status table of ten-way water valve and three-way water valve 24 in 7” mode Parts Name state The first water valve 13 m#-d#, e# are available; n#-g# are available 20th water valve 32 d#, e#-m# are connected; g#-n# are connected; Three-way water valve 24 b#-c# is not connected; a#-c# is connected; Among them, the first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the internal heat exchanger 22, the cooler 23 and the twentieth water valve 32 are connected through water pipes to form two refrigerant parallel circuits to operate, the water heater 12 consumes electrical power to heat the refrigerant, the internal heat exchanger 22 and the cooler 23 heat the air respectively, and then blow it out through the blower 62, so as to realize the function or purpose of heating the cab; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the motor electronic control and related components 41 and the twentieth water valve 32 are connected through water pipes to form a refrigerant circuit to operate, the motor electronic control and related components 41 are in a heat storage state, and the heat is transferred to the coolant.

[0054] In addition, the third electronic water pump 25 , the battery pack 42 , the three-way water valve 24 and other main components are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of equalizing the temperature of the battery pack 42 .

[0055] Specifically, if Fig.13 As shown, in the 8 modes (passenger compartment demand W, battery demand T, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 13. Table 13 is a status table of the ten-way water valve and the three-way water valve 24 in the 8 modes. Table 13 is as follows: Table 13 Status table of 10-way water valve and 3-way water valve 24 in 8 modes Parts Name state The first water valve 13 m#-d# are available; n#-f#, g# are available 20th water valve 32 d#-m# are connected; f#, g#-n# are connected; Three-way water valve 24 b#-c# is not working; a#-c# is working Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23 and the twentieth water valve 32 connected by the water pipe operates, and the cooler 23 cools the air, and then blows it out through the blower 62, so as to realize the function or purpose of cooling the cab.

[0056] In addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor and electronic control and related components 41 and the twentieth water valve 32 and other main components are connected by water pipes to form a refrigerant liquid that runs in parallel, and the heat of the motor and electronic control and related components 41 and the water-cooled condenser 2 is transferred to the low-temperature radiator 21, and the heat is dissipated through the low-temperature radiator 21 and the electronic fan 61, thereby realizing the air-conditioning function and the function or purpose of dissipating the heat of the motor and electronic control and related components 41.

[0057] In addition, the third electronic water pump 25 , the battery pack 42 , the three-way water valve 24 and other main components are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of equalizing the temperature of the battery pack 42 .

[0058] Specifically, mode 9 (passenger compartment demand E, battery demand T, motor module demand Y) is the same as mode 8.

[0059] Specifically, if Fig.14 It is shown that in the 10 mode (passenger compartment demand R, battery demand T, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 14. Table 14 is a status table of the ten-way water valve and the three-way water valve 24 in the 10 mode. Table 14 is as follows: Table 14 Status table of 10-way water valve and 3-way water valve 24 in 10 mode Parts Name state The first water valve 13 m#-d# are available; n#-e#, f#, g# are available 20th water valve 32 d#-m# are connected; e#, f#, g#-n# are connected; Three-way water valve 24 b#-c# is not connected; a#-c# is connected; Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23 and the twentieth water valve 32 connected by the water pipe operates, and the cooler 23 cools the air and dehumidifies; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor electronic control and related components 41, the internal heat exchanger The main components such as 22 and the twentieth water valve 32 are connected by water pipes to form a parallel refrigerant circuit. On the one hand, the internal heat exchanger 22 heats the cold air blown out from the cooler 23, and then blows it out through the blower 62, so as to realize the function or purpose of heating and defrosting the cab; on the other hand, the excess heat of the water-cooled condenser 2 and the motor electronic control and related components 41 is transferred to the low-temperature radiator 21, and the heat is dissipated through the low-temperature radiator 21 and the electronic fan 61, so as to realize the function or purpose of cooling the motor electronic control related components 41.

[0060] In addition, the third electronic water pump 25 , the battery pack 42 , the three-way water valve 24 and other main components are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of equalizing the temperature of the battery pack 42 .

[0061] Specifically, mode 11 (passenger compartment demand 0, battery demand Q, motor module demand Y) is the same as mode 12.

[0062] Specifically, 11' (passenger compartment demand 0, battery demand Q, motor module demand Y) is the same as mode 12".

[0063] Specifically, if Fig.15 As shown, in mode 12 (passenger compartment demand Q, battery demand Q, motor module demand Y) (air source heat pump), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 15. Table 15 is a status table of the ten-way water valve and the three-way water valve 24 in mode 12. Table 15 is as follows: Table 15 Status table of 10-way water valve and 3-way water valve 24 in 12 mode Parts Name state The first water valve 13 m#-f# are available; n#-e#, g#, k# are available 20th water valve 32 f#-m# are connected; e#, g#, k#-n# are connected; Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by refrigerant pipes operates, and the heat is transferred to the refrigerant liquid side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant liquid side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the internal heat exchanger 22, the motor electronic control and related components 41 and the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant parallel circuit to operate, the internal heat exchanger 22 heats the air and then blows it out through the blower 62 to achieve the function or purpose of heating the cab; at the same time, the motor electronic control and related components 41 are in a heat storage state, and the heat is transferred to the coolant; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the three-way water valve 24, the third electronic water pump 25, the battery pack 42 and the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant circuit to heat the battery.

[0064] In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the low-temperature radiator 21, and the twentieth water valve 32 are connected by water pipes to form a refrigerant circuit, which absorbs heat in the air and can take away the cooling capacity of the water-cooled evaporator 5, thereby realizing the air-conditioning heat pump function.

[0065] Specifically, if Fig.16 As shown, in the 12' mode (passenger cabin demand Q, battery demand Q, motor module demand Y) (water source heat pump), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 16. Table 16 is a status table of the ten-way water valve and the three-way water valve 24 in the 12' mode. Table 16 is as follows: Table 16 Status table of ten-way water valve and three-way water valve 24 in 12' mode Parts Name state The first water valve 13 m#-g# are available; n#-d#, e#, k# are available 20th water valve 32 g#-m# are connected; d#, e#, k#-m# are connected; Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by refrigerant pipes operates, and the heat is transferred to the refrigerant liquid side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant liquid side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first water-way valve 13, the internal heat exchanger 22, the cooler 23, the twentieth water-way valve 32 and other main components are connected through water pipes to form a refrigerant parallel circuit to operate, the internal heat exchanger 22 and the cooler 23 heat the air, and then blow it out through the blower 62 to achieve the function or purpose of heating the cab; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first water-way valve 13, the three-way water valve 24, the third electronic water pump 25, the battery pack 42 and the twentieth water-way valve 32 and other main components are connected through water pipes to form a refrigerant circuit to heat the battery.

[0066] In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the motor and electronic control and related components 41, and the twentieth water valve 32 are connected through water pipes to form a refrigerant circuit. The waste heat of the motor and electronic control and related components 41 can take away the cooling capacity of the water-cooled evaporator 5, thereby realizing the air-conditioning heat pump function, and at the same time realizing the function or purpose of cooling the motor and electronic control and related components 41.

[0067] Specifically, if Fig.17 As shown, in the 12" mode (passenger compartment demand Q, battery demand Q, motor module demand Y) (water heater 12), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 17. Table 17 is a status table of the ten-way water valve and the three-way water valve 24 in the 12" mode. Table 17 is as follows: Table 17 Status table of 10-way water valve and 3-way water valve 24 in 12” mode Parts Name state The first water valve 13 m#-e#, k# are connected; n#-g# are connected 20th water valve 32 e#, k#-m# are connected; g#-n# are connected; Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, the first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the internal heat exchanger 22 and the three-way water valve 24, the third electronic water pump 25, the battery pack 42 and the twentieth water valve 32 are connected by water pipes to form two refrigerant parallel circuits to operate, the water heater 12 consumes electric power to heat the refrigerant and indirectly heats the battery pack 42; the internal heat exchanger 22 heats the air and then blows it out through the blower 62 to achieve the function or purpose of heating the cab; In addition, the second electronic water pump 31, the water-cooled condenser 2, the first water valve 13, the motor and electronic control and related components 41 and the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant circuit, and the motor and electronic control and related components 41 are in a heat storage state, and the heat is transferred to the coolant.

[0068] Specifically, if Fig.18 As shown, in mode 13 (passenger compartment demand W, battery demand Q, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 18. Table 18 is a status table of the ten-way water valve and the three-way water valve 24 in mode 13. Table 18 is as follows: Table 18 Status table of ten-way water valve and three-way water valve 24 in 13 mode Parts Name state The first water valve 13 m#-d# are available; n#-f#, g#, k# are available 20th water valve 32 d#-m# are connected; f#, g#, k#-n# are connected; Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23 and the twentieth water valve 32 connected by the water pipe operates, and the cooler 23 cools the air, and then blows it out through the blower 62, so as to realize the function or purpose of cooling the cab.

[0069] In addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor and electronic control and related components 41 and the three-way water valve 24, the third electronic water pump 25, the battery pack 42 and the twentieth water valve 32 and other main components are connected by water pipes to form a refrigerant liquid that runs in parallel, and the heat of the motor and electronic control and related components 41 and the water-cooled condenser 2 is transferred to the battery pack 42; the remaining heat is dissipated by the low-temperature radiator 21 and the electronic fan 61, thereby realizing the function or purpose of air conditioning, heating the battery and dissipating the heat of the motor and electronic control and related components 41.

[0070] Specifically, mode 14 (passenger compartment demand E, battery demand Q, motor module demand Y) is the same as mode 13.

[0071] Specifically, if Fig.19 As shown, in mode 15 (passenger compartment demand R, battery demand T, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 19. Table 19 is a status table of the ten-way water valve and the three-way water valve 24 in mode 15. Table 19 is as follows: Table 19 Status table of ten-way water valve and three-way water valve 24 in 15 mode Parts Name state The first water valve 13 m#-d# are available; n#-e#, f#, g#, k# are available 20th water valve 32 d#-m# are connected; e#, f#, g#, k#-n# are connected; Three-way water valve 24 b#-c# is connected; a#-c# is not connected; Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe runs, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first thermal system B of the refrigerant circulation, the second thermal system C of the refrigerant circulation and the third thermal system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23 and the twentieth water valve 32 connected by the water pipe runs, and the cooler 23 cools the air and dehumidifies; in addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor electronic control and related components 41, the internal heat exchanger 22 and the three-way water valve 24, the third electronic water pump 25, The battery pack 42 and the twentieth water valve 32 and other main components are connected by water pipes to form a refrigerant parallel circuit. On the one hand, the internal heat exchanger 22 heats the cold air blown out from the cooler 23, and then blows it out through the blower 62, thereby realizing the function or purpose of heating and defrosting the cab; at the same time, the refrigerant in the battery circuit heats the battery; on the other hand, the excess heat of the water-cooled condenser 2 and the motor electronic control and related components 41 is transferred to the low-temperature radiator 21, and the heat is dissipated through the low-temperature radiator 21 and the electronic fan 61, thereby realizing the function or purpose of cooling the motor electronic control related components 41.

[0072] Specifically, if Fig. 20 As shown, in the 16 mode (passenger compartment demand 0, battery demand I, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 20. Table 20 is a status table of the ten-way water valve and the three-way water valve 24 in the 16 mode. Table 20 is as follows: Table 20 Status table of ten-way water valve and three-way water valve 24 in 16 mode Parts Name state The first water valve 13 m#-k# are connected; n#-f#, g# are connected 20th water valve 32 k#-m# are connected; f#, g#-n# are connected Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth-way water valve 32 are connected by water pipes to operate, and the water-cooled condenser 2, the motor electronic control and related components 41 transfer heat to the refrigerant, and the low-temperature radiator 21 and the electronic fan 61 work together to discharge the heat of the refrigerant into the air, thereby realizing the function or purpose of cooling the motor electronic control and related components 41.

[0073] In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the three-way water valve 24, the third electronic water pump 25, the battery pack 42, the twentieth water valve 32 are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of cooling the battery pack 42.

[0074] Specifically, if Fig.21 As shown, in mode 17 (passenger compartment demand Q, battery demand I, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 21. Table 21 is a status table of the ten-way water valve and the three-way water valve 24 in mode 17. Table 21 is as follows: Table 21 Status table of ten-way water valve and three-way water valve 24 in 17 mode Parts Name state The first water valve 13 m#-k# are available; n#-e#, f#, g# are available 20th water valve 32 k#-m# are connected; e#, f#, g#-n# are connected Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by refrigerant pipes operates, and the heat is transferred to the refrigerant liquid side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant liquid side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the second electronic water pump 31, the water-cooled condenser 2, the first water-way valve 13, the internal heat exchanger 22, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth water-way valve 32 and other main components are connected through water pipes to form a refrigerant circuit. The internal heat exchanger 22 heats the air and then blows it out through the blower 62 to achieve the function or purpose of heating the cab; the water-cooled condenser 2, the motor electronic control and related components 41 transfer the remaining heat to the refrigerant, and the low-temperature radiator 21 and the electronic fan 61 work together to release the heat of the refrigerant into the air, thereby achieving the function or purpose of cooling the motor electronic control and related components 41.

[0075] In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the three-way water valve 24, the third electronic water pump 25, the battery pack 42, the twentieth water valve 32 are connected through water pipes to form a refrigerant circuit, thereby achieving the function or purpose of cooling the battery pack 42.

[0076] Specifically, if Fig. 22 As shown, in mode 18 (passenger compartment demand W, battery demand I, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 22. Table 22 is a status table of the ten-way water valve and the three-way water valve 24 in mode 18. Table 22 is as follows: Table 22 Status table of ten-way water valve and three-way water valve 24 in 18 mode Parts Name state The first water valve 13 m#-d#, k# are all available; n#-f#, g# are all available 20th water valve 32 d#, k#-m# are connected; f#, g#-n# are connected Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the refrigerant circuit composed of the main components such as the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth-way water valve 32 are connected by water pipes to operate, and the water-cooled condenser 2, the motor electronic control and related components 41 transfer heat to the refrigerant, and the low-temperature radiator 21 and the electronic fan 61 work together to discharge the heat of the refrigerant into the air, thereby realizing the function or purpose of cooling the motor electronic control and related components 41.

[0077] In addition, the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23, the three-way water valve 24, the third electronic water pump 25, the battery pack 42, and the twentieth water valve 32 are connected through water pipes to form a refrigerant parallel circuit. The cooler 23 cools the air and then blows it out through the blower 62 to achieve the function or purpose of cooling the cab; at the same time, the function or purpose of cooling the battery pack 42 is achieved.

[0078] Specifically, the 18' mode (passenger compartment demand E, battery demand I, motor module demand Y) is the same as mode 13.

[0079] Specifically, mode 19 (passenger compartment demand E, battery demand I, motor module demand Y) is the same as mode 18.

[0080] Specifically, if Fig.23 As shown, in mode 20 (passenger compartment demand R, battery demand I, motor module demand Y), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 23. Table 23 is a status table of the ten-way water valve and the three-way water valve 24 in mode 20. Table 23 is as follows: Table 23 Status table of ten-way water valve and three-way water valve 24 in 20 mode Parts Name state The first water valve 13 m#-d#, k# are all available; n#-e#, f#, g# are all available 20th water valve 32 d#, k#-m# are connected; e#, f#, g#-2# are connected Three-way water valve 24 b#-c# works; a#-c# doesn't Among them, in the refrigerant circulation system A, the refrigerant system composed of the main components such as the electric compressor 1, the water-cooled condenser 2, the liquid storage dryer 3, the expansion valve 4 and the water-cooled evaporator 5 connected by the refrigerant pipe operates, and the heat is transferred to the refrigerant side of the water-cooled condenser 2 through the refrigerant side of the water-cooled condenser 2; the cooling capacity is transferred to the refrigerant side of the water-cooled evaporator 5 through the refrigerant side of the water-cooled evaporator 5. The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23, the three-way water valve 24, the third electronic water pump 25, the battery pack 42, and the twentieth water valve 32 are connected by water pipes to form a refrigerant parallel circuit, and the cooler 23 cools the air and dehumidifies; at the same time, the function or purpose of cooling the battery pack 42 is achieved.

[0081] In addition, the second electronic water pump 31, the water-cooled condenser 2, the first water valve 13, the internal heat exchanger 22, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth water valve 32 and other main components are connected through water pipes to form a refrigerant parallel circuit. The internal heat exchanger 22 heats the cold air blown out from the cooler 23, and then blows it out through the blower 62, thereby achieving the function or purpose of heating the cab; the water-cooled condenser 2, the motor electronic control and related components 41 transfer the remaining heat to the refrigerant, and the low-temperature radiator 21 and the electronic fan 61 work together to release the heat of the refrigerant into the air, thereby achieving the function or purpose of cooling the motor electronic control and related components 41.

[0082] Specifically, if Fig.24 As shown, in mode 21 (passenger compartment demand 0, battery demand U, motor module demand 0) (filling with refrigerant), the status of the ten-way water valve and the three-way water valve 24 is shown in Table 24. Table 24 is a status table of the ten-way water valve and the three-way water valve 24 in mode 21. Table 24 is as follows: Table 24 Status table of ten-way water valve and three-way water valve 24 in 21 mode Parts Name state The first water valve 13 m#-d#, k# are all available; n#-e#, f#, g# are all available 20th water valve 32 d#, k#-m# are connected; e#, f#, g#-n# are connected Three-way water valve 24 b#-c# works; a#-c# doesn't The first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation work together, and the main components such as the first electronic water pump 11, the water-cooled evaporator 5, the water heater 12, the first ten-way water valve 13, the cooler 23, the three-way water valve 24, the third electronic water pump 25, the battery pack 42, and the twentieth water valve 32 are connected by water pipes to form a refrigerant parallel circuit.

[0083] In addition, the second electronic water pump 31, the water-cooled condenser 2, the first ten-way water valve 13, the internal heat exchanger 22, the low-temperature radiator 21, the motor electronic control and related components 41 and the twentieth water valve 32 and other main components are connected by water pipes to form a parallel circuit of the refrigerant.

[0084] Such an arrangement is conducive to exhausting the air in the first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation, and is convenient for filling the refrigerant.

[0085] It should be noted that the valve core shapes or specific structures of the first water-through valve 13 and the twentieth water-through valve 32 can be completely consistent, and the control method can also be kept synchronized in this case, so as to simplify the control procedure and reduce the calibration workload; or, the valve core shapes or specific structures of the first water-through valve 13 and the twentieth water-through valve 32 can also be designed to be different according to actual use, or they can be controlled without being synchronized, and the above will not affect the implementation of this embodiment 2.

[0086] In addition, based on the above embodiments, various changes or equivalent substitutions may be made to the features and specific implementations of the above embodiments, such as combining Fig.25 As shown, the water heater 12 can be removed to improve the above system to form an expansion solution, that is, to implement the above embodiment.

[0087] For example, combined with Fig.26 As shown, a coaxial tube or plate heat exchanger 6 can be added to the refrigerant circuit to improve the above system to form an expansion plan, that is, to implement the above embodiment.

[0088] For example, combined with Fig. 27 As shown, a coaxial tube or plate heat exchanger 6, an expansion valve 4, and a refrigerant pipe 8 can be added to the refrigerant circuit to improve the above system to form an expansion plan, that is, to implement the above embodiment.

[0089] For example, combined with Fig.28 As shown, a coaxial tube or plate heat exchanger 6, an expansion valve 4, and a refrigerant connecting pipe 8 parts combination can be added to the refrigerant circuit to construct another design method to improve the above system to form an expansion plan, that is, to implement the above embodiment.

[0090] It can be understood that the refrigerant circulation system A, the first heat system B of the refrigerant circulation, the second heat system C of the refrigerant circulation and the third heat system D of the refrigerant circulation in the above-mentioned embodiments can fully meet the needs of users while ensuring the heating, cooling, dehumidification and demisting functions and comfort of the vehicle air-conditioning system; in addition, the system and control method of the present invention are suitable for low GWP refrigerants (R290, etc.) to replace the existing high GWP R134a refrigerants (HFCs substances).

[0091] At the same time, the system and control method of the present invention combine multiple thermal management functions, and the control method is complete, reasonable and scientific. At the same time, the control method comprehensively considers the design and production of the ten-way water valve and its valve core, which is conducive to simplifying the control procedure of the entire thermal system and reducing the water resistance, power consumption and operating noise of the refrigerant circulation system; and, due to the adoption of the concept of integrated modules, the system and control method of the present invention can effectively reduce the layout space of the components of the heat pump air conditioning management system, which is conducive to lightweight and energy saving and consumption reduction.

[0092] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0093] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An integrated R290 vehicle heat pump air conditioning system, comprising: A refrigerant circulation system, a first heat system for a refrigerant circulation, a second heat system for a refrigerant circulation and a third heat system for a refrigerant circulation, wherein the refrigerant circulation system comprises an electric compressor, a water-cooled condenser, a liquid storage dryer, an expansion valve and a water-cooled evaporator, and wherein the first heat system for a refrigerant circulation comprises: a first electronic water pump, a water heater, a first water tee, a first ten-way water valve and a seventh water tee; The outlet end of the first electronic water pump is connected to the inlet end of the water-cooled evaporator, the outlet end of the water-cooled evaporator is connected to the inlet end of the water heater, the outlet end of the water heater is connected to the inlet end of the first water tee, the two outlet ends of the first water tee are respectively connected to the two inlet ends m# of the first ten-way water valve, the two inlet ends of the seventh water tee are respectively connected to the second thermal system of the refrigerant circulation, and the outlet end of the seventh water tee is connected to the inlet end of the first electronic water pump.

2. The integrated R290 vehicle heat pump air conditioning system according to claim 1, characterized in that: The second heat system of the refrigerant circulation comprises: a second electronic water pump, a second water tee, a third water tee, a fourth water tee, a fifth water tee and a 20th water valve; Wherein, the outlet end of the second electronic water pump is connected to the inlet end of the water-cooled condenser, the outlet end of the water-cooled condenser is connected to the inlet end of the third water tee, one outlet end of the third water tee is connected to an inlet end n# of the first ten-way water valve; the other outlet end of the third water tee is connected to the inlet end of the second water tee, and two outlet ends of the second water tee are connected to two inlet ends n# of the first ten-way water valve; two outlet ends n# of the 20th water valve are connected to two inlet ends of the fourth water tee, the outlet end of the fourth water tee is connected to an inlet end of the fifth water tee, one outlet end n# of the 20th water valve is connected to another inlet end of the fifth water tee, the outlet end of the fifth water tee is connected to the inlet end of the second electronic water pump, and two outlet ends m# of the 20th water valve are connected to two inlet ends of the seventh water tee.

3. The integrated R290 vehicle heat pump air conditioning system according to claim 2, characterized in that: The third heat system of the refrigerant circulation comprises: Low temperature radiator, electronic fan, motor and electronic control and related components, three-way water valve, third electronic water pump, battery pack, sixth water three-way pipe, cooler, internal heat exchanger and blower; The outlet end f# of the first ten-way water valve is connected to the inlet end of the low-temperature radiator, the outlet end of the low-temperature radiator is connected to the inlet end f# of the second ten-way water valve, and the electronic fan is arranged on the ventilation port side of the low-temperature radiator; the outlet end g# of the first ten-way water valve is connected to the inlet end of the motor electronic control and related components, the outlet end of the motor electronic control and related components is connected to the inlet end g# of the twentieth water valve, the outlet end k# of the first ten-way water valve is connected to the inlet end b of the three-way water valve, the outlet end c of the three-way water valve is connected to the inlet end of the third electronic water pump, the outlet end of the third electronic water pump is connected to the inlet end of the battery pack, The outlet end of the battery pack is connected to the inlet end of the sixth water tee, one outlet end of the sixth water tee is connected to the inlet end a of the three-way water valve, and the other outlet end of the sixth water tee is connected to the inlet end k# of the twentieth water valve; the outlet end d# of the first tenth water valve is connected to the inlet end of the cooler, and the outlet end of the cooler is connected to the inlet end d# of the twentieth water valve; the outlet end e# of the first tenth water valve is connected to the inlet end of the internal heat exchanger, and the outlet end of the internal heat exchanger is connected to the inlet end e# of the twentieth water valve; the blower is arranged on one side of the vent of the cooler and the internal heat exchanger.

4. The integrated R290 vehicle heat pump air conditioning system according to claim 1, characterized in that: The low-temperature radiator, motor electronic control and related components, battery pack, cooler, and internal heat exchanger are all connected in parallel to construct a refrigerant circuit.

5. A control method for an integrated R290 vehicle heat pump air conditioning system, applied to the R290 vehicle heat pump air conditioning system according to any one of claims 1 to 4, characterized in that: The method comprises: Set multiple working modes according to user needs; The working state of the integrated heat pump air conditioning system is controlled according to the determined different working modes.

6. The control method of the integrated R290 vehicle heat pump air conditioning system according to claim 5, characterized in that: The multiple working modes are set according to user needs, including: Obtain passenger compartment requirements, battery requirements, and motor module requirements respectively; Different operating modes are set according to the different acquired passenger compartment requirements, battery requirements, and motor and electronic control and related component requirements.

7. The control method of the integrated R290 vehicle heat pump air conditioning system according to claim 5, characterized in that: The number of the working modes is twenty-one.

8. The control method of the integrated R290 vehicle heat pump air conditioning system according to claim 5, characterized in that: The working modes include: Mode 1: passenger compartment demand 0, battery demand U, motor module demand Y; 1' mode: passenger compartment demand 0, battery demand U, motor module demand Y; Mode 2: passenger compartment demand Q, battery demand U, motor module demand Y; 2' mode: passenger compartment demand Q, battery demand U, motor module demand Y; 2” mode: passenger compartment demand Q, battery demand U, motor module demand Y; 3 mode: passenger compartment demand W, battery demand U, motor module demand Y; 4 mode: passenger compartment demand E, battery demand U, motor module demand Y; 5 mode: passenger compartment demand R, battery demand U, motor module demand Y; 6 mode: passenger compartment demand 0, battery demand T, motor module demand Y; 7 mode: passenger compartment demand Q, battery demand T, motor module demand Y; 7' mode: passenger compartment demand Q, battery demand T, motor module demand Y; 7” mode: passenger compartment demand Q, battery demand T, motor module demand Y; 8 modes: passenger compartment demand W, battery demand T, motor module demand Y; 9 mode: passenger compartment demand E, battery demand T, motor module demand Y; 10 modes: passenger compartment demand R, battery demand T, motor module demand Y; Mode 11: passenger compartment demand 0, battery demand Q, motor module demand Y; 11' mode: passenger compartment demand 0, battery demand Q, motor module demand Y; 12 modes: passenger compartment demand Q, battery demand Q, motor module demand Y; 12' mode: passenger compartment demand Q, battery demand Q, motor module demand Y; 12” mode: passenger compartment demand Q, battery demand Q, motor module demand Y; 13 mode: passenger compartment demand W, battery demand Q, motor module demand Y; 14 mode: passenger compartment demand E, battery demand Q, motor module demand Y; 15 mode: passenger compartment demand R, battery demand Q, motor module demand Y; 16 mode: passenger compartment demand 0, battery demand I, motor module demand Y; 17 mode: passenger compartment demand Q, battery demand I, motor module demand Y; 18 mode: passenger compartment demand W, battery demand I, motor module demand Y; 18' mode: passenger compartment demand W, battery demand I, motor module demand Y; 19 mode: passenger compartment demand E, battery demand I, motor module demand Y; 20 mode: passenger compartment demand R, battery demand I, motor module demand Y; Mode 21: passenger compartment demand 0, battery demand U, motor module demand U; Among them, 0 represents no demand or ventilation, Q represents heating, W represents cooling, E represents cooling and dehumidification, R represents heating and dehumidification, U represents no demand, T represents average temperature, I represents cooling, and Y represents heat dissipation.

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