Thermal management system and new energy vehicle

Abstract

A thermal management system and a new energy vehicle. The thermal management system comprises a refrigerant circuit (11), and a first space (12) and a second space (13), which are separately provided. The first space (12) is in communication with at most one of outdoor spaces (14) and indoor spaces (15), and the second space (13) is in communication with at most one of the outdoor spaces (14) and the indoor spaces (15). The refrigerant circuit (11) comprises an evaporator (16), a condenser (17), a first control valve (18), and a compressor (19). The evaporator (16) is arranged in the first space (12), and the condenser (17) is arranged in the second space (13). The compressor (19) comprises an air inlet (24) and an air outlet (25). One end of the evaporator (16) is connected to the first control valve (18), and the other end thereof is connected to the air inlet (24). One end of the condenser (17) is connected to the air outlet (25), and the other end thereof is connected to the first control valve (18).

Description

Thermal management systems and new energy vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202310712923.9, filed on June 15, 2023, the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to, but is not limited to, the field of thermal management technology, and in particular to a thermal management system and a new energy vehicle. Background Art

[0004] With the gradual development of technology, new energy vehicles are gradually entering people's horizons. New energy vehicles are vehicles that use unconventional automotive fuels as their power source. New energy vehicles often have functions such as cooling and heating.

[0005] Summary of the Invention

[0006] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0007] The present application provides a thermal management system and a new energy vehicle.

[0008] On the one hand, the present application provides a thermal management system, comprising: a first space and a second space separated from each other, the first space being connected to at most one of an outdoor space and an indoor space, and the second space being connected to at most one of the outdoor space and the indoor space; and a refrigerant circuit, comprising an evaporator, a condenser, a first control valve and a compressor, the evaporator being arranged in the first space, the condenser being arranged in the second space, the compressor comprising an air inlet and an air outlet, one end of the evaporator being connected to the first control valve, the other end of the evaporator being connected to the air inlet, one end of the condenser being connected to the air outlet, and the other end of the condenser being connected to the first control valve.

[0009] Optionally, the thermal management system further includes a coolant circuit and a refrigerant branch, the refrigerant branch is connected between the condenser and the air inlet, and is connected in parallel with the first control valve and the evaporator; the refrigerant branch includes a second control valve and a first heat exchanger, and the second control valve is located between the condenser and the first heat exchanger; the coolant circuit includes a first sub-coolant circuit passing through the first heat exchanger, and when the second control valve is in an open state, the refrigerant branch is connected, and the coolant flowing through the first sub-coolant circuit exchanges heat with the refrigerant flowing through the refrigerant branch at the first heat exchanger.

[0010] Optionally, the first sub-coolant circuit also includes a heater configured to heat the coolant, and the heater is connected to the first heat exchanger; when the second control valve is in an open state and the heater is in an open state, the heated coolant flowing through the heater and the refrigerant flowing through the refrigerant branch exchange heat at the first heat exchanger.

[0011] Optionally, the coolant circuit also includes a second sub-coolant circuit, the second sub-coolant circuit includes a first liquid pump and a battery, the first liquid pump is connected to the battery and is configured to deliver coolant to the battery; the first sub-coolant circuit is selectively connected to the second sub-coolant circuit via a first four-way valve and a second four-way valve, when the first sub-coolant circuit is connected to the second sub-coolant circuit and the second control valve is in an open state, the coolant flowing through the battery and the refrigerant flowing through the refrigerant branch exchange heat at the first heat exchanger.

[0012] Optionally, the thermal management system also includes a coolant circuit; the refrigerant circuit also includes a second heat exchanger arranged between the air outlet and the condenser; the coolant circuit includes a third sub-coolant circuit passing through the second heat exchanger, and the third sub-coolant circuit includes a second liquid pump and a third control valve connected to the second liquid pump; when the third control valve is in an open state, the second liquid pump delivers coolant to the second heat exchanger, so that the coolant flowing through the third sub-coolant circuit and the refrigerant flowing through the refrigerant circuit exchange heat at the second heat exchanger.

[0013] Optionally, the third sub-cooling liquid loop further includes an electronic equipment component, and the second liquid pump is connected to the electronic equipment component and is configured to deliver cooling liquid to the electronic equipment component.

[0014] Optionally, the coolant circuit also includes a fourth sub-coolant circuit, which includes a radiator; the fourth sub-coolant circuit is selectively connected to the third sub-coolant circuit via a first four-way valve and a second four-way valve. When the fourth sub-coolant circuit is connected to the third sub-coolant circuit and the third control valve is in an open state, the coolant flowing through the radiator and the refrigerant flowing through the refrigerant circuit exchange heat at the second heat exchanger.

[0015] Optionally, the thermal management system further includes a first damper arranged between the first space and the second space, and when the first damper is opened, the first space is connected to the second space; when the first damper is closed, the first space is separated from the second space.

[0016] Optionally, the thermal management system further includes a first fan and a second damper, the first fan being arranged in the first space, the first space being provided with a first air outlet, the first fan being configured to transport the wind at the first air outlet to the evaporator; the second damper being rotatably arranged at the first air outlet to connect the first space with at least one of the outdoor space and the indoor space.

[0017] Optionally, the thermal management system further includes a second fan, which is arranged in the second space, and the second space is provided with a second air outlet, the second air outlet connects the outdoor space and the second space, and the second fan is configured to transport the wind at the second air outlet to the condenser.

[0018] Optionally, the thermal management system also includes a third damper and a fourth damper, the third damper being openable and closable between the first space and the outdoor space, when the third damper is opened, the first space is connected to the outdoor space, when the third damper is closed, the first space is not connected to the outdoor space; the fourth damper being openable and closable between the first space and the indoor space, when the fourth damper is opened, the first space is connected to the indoor space, when the fourth damper is closed, the first space is not connected to the indoor space.

[0019] Optionally, the thermal management system also includes a fifth damper and a sixth damper, the fifth damper being openable and closable between the second space and the outdoor space, when the fifth damper is opened, the second space is connected to the outdoor space, and when the fifth damper is closed, the second space is not connected to the outdoor space; the sixth damper being openable and closable between the second space and the indoor space, when the sixth damper is opened, the second space is connected to the indoor space, and when the sixth damper is closed, the second space is not connected to the indoor space.

[0020] Optionally, the thermal management system also includes a coolant circuit; the coolant circuit includes a first sub-coolant circuit, a second sub-coolant circuit, a third sub-coolant circuit, a fourth sub-coolant circuit, a first four-way valve and a second four-way valve; the first sub-coolant circuit, the second sub-coolant circuit, the third sub-coolant circuit and the fourth sub-coolant circuit are all connected to the first four-way valve and the second four-way valve.

[0021] Optionally, the fourth sub-coolant circuit includes a radiator, a three-way valve, a main line, a first branch and a second branch, the radiator is arranged on the first branch, the first end of the three-way valve is connected to the main line, the second end of the three-way valve is connected to the first branch, and the third end of the three-way valve is connected to the second branch.

[0022] On the other hand, the present application provides a new energy vehicle, including a thermal management system as described in any of the above embodiments.

[0023] The thermal management system provided herein comprises an evaporator disposed within a first space, which is connected to at most one of the outdoor space and the indoor space; and a condenser disposed within a second space, which is connected to at most one of the outdoor space and the indoor space. When the thermal management system is in cooling mode, the first space can be connected to the indoor space, and the cold air generated by the evaporator can be output to the indoor space. When the thermal management system is in heating mode, the second space can be connected to the indoor space, and the hot air generated by the condenser can be output to the indoor space. This eliminates the need for an outdoor heat exchanger and utilizes the same circuit for both cooling and heating modes, simplifying the thermal management system structure.

[0024] It should be understood that the above general description and the following detailed description are only exemplary and explanatory and are not limiting of the present application. Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] FIG1 is a schematic diagram of a thermal management system according to an exemplary embodiment of the present application.

[0027] FIG2 is a schematic diagram showing the thermal management system shown in FIG1 in another state.

[0028] FIG3 is a schematic diagram of the thermal management system shown in FIG1 in another state.

[0029] FIG4 is a schematic diagram showing the thermal management system shown in FIG1 in another state.

[0030] FIG5 is a schematic diagram showing a thermal management system according to another exemplary embodiment of the present application. DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0032] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar words used in this specification and claims do not indicate any order, quantity, or importance, but are simply used to distinguish different components. Similarly, terms such as "a" or "an" do not indicate a quantitative limitation, but rather indicate the presence of at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper," "top," and "bottom" are used for ease of description only and are not limited to a single position or spatial orientation. Terms such as "include" or "comprises" mean that the elements or objects listed before "include" or "comprises" include the elements or objects listed after "include" or "comprises," and their equivalents, and do not exclude other elements or objects. The words “connected” or “connected” and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0033] As used in this application and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0034] Some new energy vehicles require an outdoor heat exchanger, acting as either the evaporator or condenser, in addition to the indoor condenser and evaporator. When the vehicle is cooling, the outdoor heat exchanger acts as the condenser, forming the primary circuit with the indoor evaporator. When heating, the outdoor heat exchanger acts as the evaporator, forming the secondary circuit with the indoor condenser. The cooling and heating processes occur separately, creating a complex structure.

[0035] In view of this, the present application provides a thermal management system and a new energy vehicle. The thermal management system and the new energy vehicle of the present application are described in detail below with reference to the accompanying drawings. The features of the following embodiments and implementations may be combined with each other unless they conflict.

[0036] As shown in Figures 1 to 4, the present application provides a thermal management system 10, comprising a refrigerant circuit 11, a first space 12, and a second space 13, which are separated. The first space 12 is connected to at most one of an outdoor space 14 and an indoor space 15. When the thermal management system 10 is applied to a new energy vehicle, the outdoor space 14 may refer to the environment outside the new energy vehicle, and the indoor space 15 may refer to the driver's cabin of the new energy vehicle. The first space 12 may be connected to the outdoor space 14, the indoor space 15, or neither. In some embodiments, the thermal management system 10 further includes a third damper 20 and a fourth damper 21. The third damper 20 is openably disposed between the first space 12 and the outdoor space 14. For example, the third damper 20 may be rotatably disposed between the first space 12 and the outdoor space 14. When the third damper 20 is open, the first space 12 is connected to the outdoor space 14; when the third damper 20 is closed, the first space 12 is disconnected from the outdoor space 14. The fourth damper 21 is disposed between the first space 12 and the indoor space 15 in an openable and closable manner. For example, the fourth damper 21 can be rotatably disposed between the first space 12 and the indoor space 15. When the fourth damper 21 is open, the first space 12 is connected to the indoor space 15; when the fourth damper 21 is closed, the first space 12 and the indoor space 15 are disconnected. The second space 13 is connected to at most one of the outdoor space 14 and the indoor space 15. The second space 13 can be connected to the outdoor space 14, the indoor space 15, or neither of the outdoor space 14 and the indoor space 15. In some embodiments, the thermal management system 10 further includes a fifth damper 22 and a sixth damper 23. The fifth damper 22 is disposed between the second space 13 and the outdoor space 14 in an openable and closable manner. For example, the fifth damper 22 can be rotatably disposed between the second space 13 and the outdoor space 14. When the fifth damper 22 is open, the second space 13 communicates with the outdoor space 14; when the fifth damper 22 is closed, the second space 13 is disconnected from the outdoor space 14. A sixth damper 23 is disposed between the second space 13 and the indoor space 15 in an openable and closable manner. For example, the sixth damper 23 may be rotatably disposed between the second space 13 and the indoor space 15. When the sixth damper 23 is open, the second space 13 communicates with the indoor space 15; when the sixth damper 23 is closed, the second space 13 and the indoor space 15 are disconnected.

[0037] The refrigerant circuit 11 includes an evaporator 16, a condenser 17, a first control valve 18, and a compressor 19. The first control valve 18 can be a solenoid valve or an electronic expansion valve. A controller controls the opening and closing of the first control valve 18 to connect and disconnect the refrigerant circuit 11. When the first control valve 18 is open, the refrigerant circuit 11 is connected, allowing refrigerant to flow through it. In this case, the evaporator 16 can be used for cooling, and the condenser 17 can be used for heating. The evaporator 16 is located in the first space 12, and the condenser 17 is located in the second space 13, allowing the evaporator 16 and condenser 17 to be separated. The compressor 19 includes an air inlet 24 and an air outlet 25. The first control valve 18 is connected to one end of the evaporator 16, and the other end of the evaporator 16 is connected to the air inlet 24. The air outlet 25 is connected to one end of the condenser 17, and the other end of the condenser 17 is connected to the first control valve 18. It will be appreciated that the first space 12 is in communication with at most one of the outdoor space 14 and the indoor space 15, such that the air outlet side of the evaporator 16 is in communication with at most one of the outdoor space 14 and the indoor space 15. The second space 13 is in communication with at most one of the outdoor space 14 and the indoor space 15, such that the air outlet side of the condenser 17 is in communication with at most one of the outdoor space 14 and the indoor space 15. In this way, cold air, hot air, or a mixture of cold and hot air can be delivered to the indoor space 15.

[0038] In the thermal management system 10 provided herein, an evaporator 16 is disposed within a first space 12, which communicates with at most one of an outdoor space 14 and an indoor space 15. A condenser 17 is disposed within a second space 13, which communicates with at most one of the outdoor space 14 and the indoor space 15. When the thermal management system 10 is in cooling mode, the third damper 20 can be closed and the fourth damper 21 opened to connect the first space 12 with the indoor space 15, allowing the cool air generated by the evaporator 16 to be output to the indoor space 15. At this time, outdoor fresh air can be blown toward the condenser 17, while the fifth damper 22 can be opened and the sixth damper 23 closed to allow the hot air to be blown to the outdoor space 14. When the thermal management system 10 is in heating mode, the fifth damper 22 can be closed and the sixth damper 23 opened to connect the second space 13 with the indoor space 15, allowing the hot air generated by the condenser 17 to be output to the indoor space 15. The third damper 20 can be opened and the fourth damper 21 closed to allow the cool air to be blown to the outdoor space 14. This eliminates the need for an outdoor heat exchanger and utilizes the same circuit for both cooling and heating modes, simplifying the thermal management system 10. This reduces the number of pipes and refrigerant charge, thereby shortening assembly time and saving costs. Furthermore, utilizing the same circuit for both cooling and heating modes reduces flow resistance in the refrigerant circuit 11, lowering energy consumption and conserving overall energy.

[0039] In some embodiments, the thermal management system 10 includes a first sensor 59 and a second sensor 60. The first sensor 59 is arranged on a pipeline connected to the air inlet 24, and the second sensor 60 is arranged on a pipeline connected to the air outlet 25. The first sensor 59 and the second sensor 60 are used to detect the pressure and temperature at the air inlet 24 and the air outlet 25 of the compressor 19, so that the speed of the compressor 19 can be adjusted according to the detected pressure and temperature.

[0040] In some embodiments, the thermal management system 10 includes a first damper 49 disposed between the first space 12 and the second space 13. The first damper 49 can be rotatably disposed between the first space 12 and the second space 13. When the first damper 49 is open, the first space 12 is connected to the second space 13; when the first damper 49 is closed, the first space 12 is isolated from the second space 13. When the ambient temperature is too cold or too hot, the first damper 49 can be opened to mix the air. For example, when the ambient temperature is low and the temperature of the indoor space 15 is higher than the ambient temperature, the first damper 49 can be opened to connect the first space 12 and the second space 13, and the higher temperature of the indoor space 15 can be used to heat the condenser 17, thereby reducing energy consumption.

[0041] In some embodiments, the thermal management system 10 includes a first fan 50 and a second damper 51. The first fan 50 can be a blower. The first fan 50 is disposed within the first space 12, which is provided with a first air outlet 52. The first fan 50 is configured to deliver air from the first air outlet 52 to the air inlet side of the evaporator 16. The second damper 51 is rotatably disposed at the first air outlet 52 to connect the first space 12 with at least one of the outdoor space 14 and the indoor space 15. The first space 12 can be connected to both the outdoor space 14 and the indoor space 15, and the first fan 50 can deliver air from both the outdoor space 14 and the indoor space 15 to the air inlet side of the evaporator 16. The first space 12 can be connected to either the outdoor space 14 or the indoor space 15, so that the first fan 50 can deliver air from either the outdoor space 14 or the indoor space 15 to the air inlet side of the evaporator 16. In this way, when the thermal management system 10 is in the heating state, the second damper 51 can be controlled to rotate so that the first space 12 is connected to the indoor space 15, and the first space 12 is disconnected from the outdoor space 14. This allows the first fan 50 to deliver air from the indoor space 15 to the air inlet side of the evaporator 16, thereby completely absorbing heat from the indoor space 15 and reducing energy consumption.

[0042] In some embodiments, the thermal management system 10 includes a second fan 53. The second fan 53 can be a blower. The second fan 53 is disposed within the second space 13. The second space 13 is provided with a second air vent 54, which connects the outdoor space 14 and the second space 13. The second fan 53 is configured to deliver air from the second air vent 54 to the air inlet side of the condenser 17. This allows air from the outdoor space 14 to be delivered to the air inlet side of the condenser 17. The first fan 50 can be disposed within the first space 12, and the second fan 53 can be disposed within the second space 13, so that the condenser 17 and the evaporator 16 can be provided with independent air inlets.

[0043] In some embodiments, the thermal management system 10 further includes a coolant circuit 26 and a refrigerant branch 27. Coolant can flow in the coolant circuit 26. The coolant can be a mixture of water and ethylene glycol. The refrigerant branch 27 is connected between the condenser 17 and the air inlet 24 and is connected in parallel with the first control valve 18 and the evaporator 16. When the refrigerant branch 27 is connected, the refrigerant flowing out of the condenser 17 can flow one way to the first control valve 18 and another way to the refrigerant branch 27. The refrigerant branch 27 includes a second control valve 28 and a first heat exchanger 29. The second control valve 28 can be a solenoid valve or an electronic expansion valve. The second control valve 28 is located between the condenser 17 and the first heat exchanger 29. The second control valve 28 can be located upstream of the first heat exchanger 29. A controller can control the opening and closing of the second control valve 28 to connect and disconnect the refrigerant branch 27. The coolant circuit 26 includes a first sub-coolant circuit 30 that passes through the first heat exchanger 29. When second control valve 28 is open, refrigerant branch 27 is connected, allowing refrigerant to flow through refrigerant branch 27. Refrigerant can flow from condenser 17 to second control valve 28, first heat exchanger 29, and air inlet 24 of compressor 19 in sequence. Coolant flowing through first sub-cooling liquid circuit 30 exchanges heat with refrigerant flowing through refrigerant branch 27 at first heat exchanger 29. Heat exchange between first sub-cooling liquid circuit 30 and refrigerant branch 27 can be achieved using first heat exchanger 29. Thus, refrigerant branch 27 can be heated or cooled using first sub-cooling liquid circuit 30, or cooled using refrigerant branch 27, respectively. This is not a limitation of the present invention.

[0044] In some embodiments, the first sub-coolant circuit 30 further includes a heater 31 for heating the coolant. The heater 31 may be a high-voltage coolant heater (HVCH). When the second control valve 28 is open and the heater 31 is on, the heated coolant flowing through the heater 31 exchanges heat with the refrigerant flowing through the refrigerant branch 27 at the first heat exchanger 29. Under low-temperature conditions, the coolant heated by the heater 31 can be used to increase the temperature at the first heat exchanger 29, thereby heating the refrigerant circuit 11 and gradually increasing the temperature of the indoor space 15. Using the heater 31 to heat the refrigerant circuit 11 can reduce energy consumption, reduce power consumption in winter heating mode, and increase the temperature range of the thermal management system 10, allowing the thermal management system 10 to be used in an environment of minus 30 degrees Celsius. When the thermal management system 10 is applied to new energy vehicles, it can increase the winter range of new energy vehicles.

[0045] In some embodiments, the coolant circuit 26 includes a second sub-coolant circuit 32, which includes a first pump 33 and a battery 34. The first pump 33 can pressurize the coolant to ensure that the coolant circulates within the second sub-coolant circuit 32. The first pump 33 is connected to the battery 34 to deliver coolant to the battery 34, thereby cooling or heating the battery 34 and maintaining it within a suitable operating temperature range. The first sub-coolant circuit 30 can optionally communicate with the second sub-coolant circuit 32. The first sub-coolant circuit 30 can be connected to the second sub-coolant circuit 32 or not. When the first sub-coolant circuit 30 is connected to the second sub-coolant circuit 32 and the second control valve 28 is open, the coolant flowing through the battery 34 exchanges heat with the refrigerant flowing through the refrigerant branch 27 at the first heat exchanger 29. When heater 31 is on, it heats the coolant flowing through battery 34, gradually raising the temperature of battery 34 to accommodate startup at low temperatures. When heater 31 is off, low-temperature refrigerant flowing through first heat exchanger 29 cools the coolant flowing through battery 34, thereby cooling battery 34. Using first heat exchanger 29 to cool battery 34 simplifies cooling.

[0046] In this embodiment, when the temperature of the outdoor space 14 is between -18°C and 15°C, the indoor space 15 and the battery 34 are heated, the first sub-coolant circuit 30 is connected to the second sub-coolant circuit 32, the second control valve 28 is in a closed state, and the first liquid pump 33 delivers coolant heated by the heater 31 to the battery 34, and the battery 34 is heated by the heater 31.

[0047] In some embodiments, the refrigerant circuit 11 includes a second heat exchanger 35 disposed between the air outlet 25 and the condenser 17. The second heat exchanger 35 can be a water-cooled condenser, which has a simple structure and is relatively lightweight. The coolant circuit 26 includes a third sub-coolant circuit 36 ​​passing through the second heat exchanger 35. The third sub-coolant circuit 36 ​​includes a second liquid pump 37 and a third control valve 38 connected to the second liquid pump 37. The third control valve 38 can be a solenoid valve or an electronic expansion valve. A controller can control the opening and closing of the third control valve 38 to connect and disconnect the third sub-coolant circuit 36. When the third control valve 38 is open, the second liquid pump 37 delivers coolant to the second heat exchanger 35, allowing the coolant flowing through the third sub-coolant circuit 36 ​​to exchange heat with the refrigerant flowing through the refrigerant circuit 11 at the second heat exchanger 35. The second heat exchanger 35 can be used to achieve heat exchange between the third sub-cooling liquid circuit 36 ​​and the refrigerant circuit 11 , so that the coolant in the third sub-cooling liquid circuit 36 ​​can be used to cool the refrigerant passing through the second heat exchanger 35 .

[0048] In this embodiment, when the temperature of the outdoor space 14 is below -18°C and the indoor space 15 is being heated independently, the second control valve 28 and the third control valve 38 are opened, the first sub-coolant circuit 30 is disconnected from the second sub-coolant circuit 32, and the heater 31, the first heat exchanger 29, and the second heat exchanger 35 are used to rapidly heat the indoor space 15. When the temperature of the outdoor space 14 is below -18°C and the indoor space 15 and the battery 34 are being heated, the first sub-coolant circuit 30 is connected to the second sub-coolant circuit 32, the second control valve 28 is opened, and the first liquid pump 33 delivers coolant heated by the heater 31 to the battery 34. The battery 34 is heated by the heater 31, while the first heat exchanger 29 is used to rapidly heat the indoor space 15.

[0049] In some embodiments, the third sub-cooling liquid loop 36 includes an electronic device assembly 39. Among them, the electronic device assembly 39 may include an on-board charger (On-Board Charger, OBC) 40, a DC-DC converter 41, an autonomous driving domain controller (Autonomous Driving Control Unit, ADCU) 42, a motor 43, etc., which are not limited in this application. The electronic device assembly 39 can be connected in parallel with the third control valve 38 and the second heat exchanger 35. The second liquid pump 37 is connected to the electronic device assembly 39 and is used to deliver coolant to the electronic device assembly 39, so that the electronic device assembly 39 can be cooled. Among them, the second liquid pump 37 can pressurize the coolant to ensure that the coolant can circulate in the third sub-cooling liquid loop 36. When the third control valve 38 is in the open state, the second liquid pump 37 can deliver coolant to the second heat exchanger 35 and the electronic device assembly 39.

[0050] In some embodiments, the coolant circuit 26 includes a fourth sub-circuit 48, which includes a radiator 44. The radiator 44 is used to cool the coolant. The radiator 44 can be a water tank. The fourth sub-circuit 48 can include a cooling fan 45, which can be positioned directly opposite the radiator 44 to rapidly cool the radiator 44. The fourth sub-circuit 48 can optionally communicate with the third sub-circuit 36. The fourth sub-circuit 48 can be connected to or not connected to the third sub-circuit 36. When the fourth sub-circuit 48 is connected to the third sub-circuit 36 ​​and the third control valve 38 is open, the coolant flowing through the radiator 44 exchanges heat with the refrigerant flowing through the refrigerant circuit 11 at the second heat exchanger 35. This allows the low-temperature coolant flowing through the radiator 44 to cool the refrigerant flowing through the second heat exchanger 35, resulting in a better cooling effect. In this embodiment, when the temperature of the outdoor space 14 is above 35°C and the indoor space 15 is cooled independently, the fourth sub-coolant circuit 48 can be connected to the third sub-coolant circuit 36, and the second liquid pump 37 can supply coolant to the radiator 44, thereby allowing the radiator 44 to dissipate heat from the second heat exchanger 35 to the outside air. When the temperature of the outdoor space 14 is above 35°C and the indoor space 15 and the battery 34 are cooled, the first sub-coolant circuit 30 is connected to the second sub-coolant circuit 32, the second control valve 28 is opened, and the first liquid pump 33 supplies coolant that has passed through the first heat exchanger 29 to the battery 34, thereby cooling the battery 34. Furthermore, the fourth sub-coolant circuit 48 is connected to the third sub-coolant circuit 36, and the second liquid pump 37 supplies coolant to the radiator 44, thereby allowing the radiator 44 to dissipate heat from the second heat exchanger 35 to the outside air. When the temperature of the outdoor space 14 is between 15°C and 35°C, cooling the indoor space 15 and the battery 34, the first sub-coolant circuit 30 connects with the second sub-coolant circuit 32, the second control valve 28 opens, and the first liquid pump 33 delivers coolant, which has passed through the first heat exchanger 29, to the battery 34, where it is cooled. When the temperature of the outdoor space 14 is between -18°C and 15°C, heating the indoor space 15 and cooling the battery 34, the first sub-coolant circuit 30 connects with the second sub-coolant circuit 32, the second control valve 28 opens, and the battery 34 is cooled by the first heat exchanger 29.When the temperature of outdoor space 14 is below -18°C, heating indoor space 15 and cooling battery 34, first sub-coolant loop 30 is disconnected from second sub-coolant loop 32, second sub-coolant loop 32 is connected to fourth sub-coolant loop 48, and second control valve 28 and third control valve 38 are opened. Heater 31, first heat exchanger 29, and second heat exchanger 35 are used to rapidly heat indoor space 15. Battery 34 is cooled by radiator 44.

[0051] In some embodiments, the coolant circuit 26 includes a first four-way valve 46 and a second four-way valve 47. The first sub-coolant circuit 30, the second sub-coolant circuit 32, the third sub-coolant circuit 36, and the fourth sub-coolant circuit 48 are all connected to the first four-way valve 46 and the second four-way valve 47. That is, the first sub-coolant circuit 30, the second sub-coolant circuit 32, the third sub-coolant circuit 36, and the fourth sub-coolant circuit 48 are selectively connected to each other via the first four-way valve 46 and the second four-way valve 47. Using the first four-way valve 46 and the second four-way valve 47 to integrate the first sub-coolant circuit 30, the second sub-coolant circuit 32, the third sub-coolant circuit 36, and the fourth sub-coolant circuit 48 can further reduce assembly time and lower costs.

[0052] In this embodiment, the first sub-coolant circuit 30 is connected to the first end of the first four-way valve 46 and the first end of the second four-way valve 47. The second sub-coolant circuit 32 is connected to the second end of the first four-way valve 46 and the second end of the second four-way valve 47. The third sub-coolant circuit 36 ​​is connected to the third end of the first four-way valve 46 and the third end of the second four-way valve 47. The fourth sub-coolant circuit 48 is connected to the fourth end of the first four-way valve 46 and the fourth end of the second four-way valve 47. As shown in Figure 1, the first and second ends of the first four-way valve 46 are connected, and the third and fourth ends of the first four-way valve 46 are connected. The first and second ends of the second four-way valve 47 are connected, and the third and fourth ends of the second four-way valve 47 are connected. As shown in Figure 2, the first and second ends of the first four-way valve 46 are connected, and the third and fourth ends of the first four-way valve 46 are connected. The first and third ends of the second four-way valve 47 are connected, and the second and fourth ends of the second four-way valve 47 are connected. As shown in Figure 3, the first and third ends of the first four-way valve 46 are connected, and the second and fourth ends of the first four-way valve 46 are connected. The first and second ends of the second four-way valve 47 are connected, and the third and fourth ends of the second four-way valve 47 are connected. As shown in Figure 4, the first and third ends of the first four-way valve 46 are connected, and the second and fourth ends of the first four-way valve 46 are connected. The first and third ends of the second four-way valve 47 are connected, and the second and fourth ends of the second four-way valve 47 are connected. In this way, Figures 1 to 4 form four types of coolant channels.

[0053] As shown in FIG5 , in some embodiments, the fourth sub-coolant circuit 48 includes a three-way valve 55, a main circuit 56, a first branch circuit 57, and a second branch circuit 58. The radiator 44 is disposed in the first branch circuit 57. The first end of the three-way valve 55 is connected to the main circuit 56, the second end of the three-way valve 55 is connected to the first branch circuit 57, and the third end of the three-way valve 55 is connected to the second branch circuit 58. The first, second, and third ends of the three-way valve 55 may be interconnected, the first and second ends of the three-way valve 55 may be connected, or the first and third ends of the three-way valve 55 may be connected. This provides a better control effect. Integrating the first four-way valve 46, the second four-way valve 47, and the three-way valve 55 into a nine-way valve provides a higher level of integration.

[0054] The present application also provides a new energy vehicle, including the above-mentioned thermal management system.

[0055] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0056] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A thermal management system, include: A first space and a second space are separated and arranged, wherein the first space is connected to at most one of the outdoor space and the indoor space, and the second space is connected to at most one of the outdoor space and the indoor space; and A refrigerant circuit includes an evaporator, a condenser, a first control valve and a compressor, wherein the evaporator is arranged in the first space, the condenser is arranged in the second space, the compressor includes an air inlet and an air outlet, one end of the evaporator is connected to the first control valve and the other end is connected to the air inlet, and one end of the condenser is connected to the air outlet and the other end is connected to the first control valve.

2. The thermal management system according to claim 1, further comprising a coolant circuit and a refrigerant branch circuit, in, The refrigerant branch is connected between the condenser and the air inlet, and is connected in parallel with the first control valve and the evaporator; The refrigerant branch includes a second control valve and a first heat exchanger, wherein the second control valve is located between the condenser and the first heat exchanger; The cooling liquid circuit comprises a first cooling liquid sub-circuit passing through the first heat exchanger, When the second control valve is in an open state, the refrigerant branch is connected, and the coolant flowing through the first sub-coolant circuit exchanges heat with the refrigerant flowing through the refrigerant branch at the first heat exchanger.

3. The thermal management system according to claim 2, in, The first sub-cooling liquid circuit further includes a heater configured to heat the coolant, the heater being connected to the first heat exchanger; When the second control valve is in an open state and the heater is in an on state, the heated coolant flowing through the heater exchanges heat with the refrigerant flowing through the refrigerant branch at the first heat exchanger.

4. The thermal management system according to claim 2 or 3, in, The cooling liquid circuit further includes a second sub-cooling liquid circuit, the second sub-cooling liquid circuit includes a first liquid pump and a battery, the first liquid pump is connected to the battery and is configured to deliver cooling liquid to the battery; The first sub-cooling liquid circuit is selectively connected to the second sub-cooling liquid circuit via a first four-way valve and a second four-way valve. When the first sub-coolant circuit is connected to the second sub-coolant circuit and the second control valve is in an open state, the coolant flowing through the battery and the refrigerant flowing through the refrigerant branch exchange heat at the first heat exchanger.

5. The thermal management system of claim 1 , further comprising a coolant circuit; in, The refrigerant circuit further includes a second heat exchanger disposed between the air outlet and the condenser; The cooling liquid circuit comprises a third sub-cooling liquid circuit passing through the second heat exchanger, and the third sub-cooling liquid circuit comprises a second liquid pump and a third control valve connected to the second liquid pump; When the third control valve is in an open state, the second liquid pump delivers coolant to the second heat exchanger, so that the coolant flowing through the third sub-coolant circuit exchanges heat with the refrigerant flowing through the refrigerant circuit at the second heat exchanger.

6. The thermal management system according to claim 5, in, The third sub-cooling liquid loop also includes an electronic equipment component, and the second liquid pump is connected to the electronic equipment component and is configured to deliver cooling liquid to the electronic equipment component.

7. The thermal management system according to claim 5 or 6, in, The coolant circuit further includes a fourth sub-coolant circuit, and the fourth sub-coolant circuit includes a radiator; The fourth sub-cooling liquid circuit is selectively connected to the third sub-cooling liquid circuit via the first four-way valve and the second four-way valve. When the fourth sub-cooling liquid circuit is connected to the third sub-cooling liquid circuit and the third control valve is in an open state, the coolant flowing through the radiator exchanges heat with the refrigerant flowing through the refrigerant circuit at the second heat exchanger.

8. The thermal management system according to any one of claims 1 to 7, further comprising a first damper disposed between the first space and the second space, in, When the first damper is opened, the first space is connected to the second space; When the first damper is closed, the first space is separated from the second space.

9. The thermal management system according to any one of claims 1 to 8, further comprising a first fan and a second damper, in, The first fan is disposed in the first space, the first space is provided with a first air outlet, and the first fan is configured to transport the wind at the first air outlet to the evaporator; The second damper is rotatably disposed at the first air outlet to allow the first space to communicate with at least one of the outdoor space and the indoor space.

10. The thermal management system according to any one of claims 1 to 9, further comprising a second fan, wherein the second fan is disposed in the second space, the second space is provided with a second air outlet, the second air outlet connects the outdoor space and the second space, and the second fan is configured to transport the wind at the second air outlet to the condenser.

11. The thermal management system according to any one of claims 1 to 10, further comprising a third damper and a fourth damper, in, The third damper is openably disposed between the first space and the outdoor space. When the third damper is opened, the first space is connected to the outdoor space. When the third damper is closed, the first space is not connected to the outdoor space. The fourth damper is openably and closably disposed between the first space and the indoor space. When the fourth damper is opened, the first space is connected to the indoor space. When the fourth damper is closed, the first space is not connected to the indoor space.

12. The thermal management system according to any one of claims 1 to 11, further comprising a fifth damper and a sixth damper, in, The fifth damper is openably disposed between the second space and the outdoor space. When the fifth damper is opened, the second space is connected to the outdoor space. When the fifth damper is closed, the second space is not connected to the outdoor space. The sixth damper is openably and closably disposed between the second space and the indoor space. When the sixth damper is opened, the second space is connected to the indoor space. When the sixth damper is closed, the second space is not connected to the indoor space.

13. The thermal management system of claim 1, further comprising a coolant circuit; in, The coolant circuit comprises a first sub-coolant circuit, a second sub-coolant circuit, a third sub-coolant circuit, a fourth sub-coolant circuit, a first four-way valve and a second four-way valve; The first sub-cooling liquid circuit, the second sub-cooling liquid circuit, the third sub-cooling liquid circuit, and the fourth sub-cooling liquid circuit are all connected to the first four-way valve and the second four-way valve.

14. The thermal management system according to claim 13, in, The fourth sub-coolant circuit includes a radiator, a three-way valve, a main road, a first branch and a second branch. The radiator is arranged on the first branch, the first end of the three-way valve is connected to the main road, the second end of the three-way valve is connected to the first branch, and the third end of the three-way valve is connected to the second branch.

15. A new energy vehicle, comprising the thermal management system according to any one of claims 1 to 14.

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