Thermal management system and vehicle

Abstract

The utility model discloses a heat management system and a vehicle. The heat management system comprises an air conditioner module and a refrigerator module. The air conditioning module comprises an in-vehicle heat exchanger, an out-vehicle heat exchanger and a compressor which are connected to form a refrigerant loop; the refrigerator module comprises a first heat exchanger and a second heat exchanger, the first heat exchanger is connected into the refrigerant loop, the second heat exchanger is in contact with the first heat exchanger, and the first heat exchanger exchanges heat with the second heat exchanger. Therefore, the first heat exchanger is connected into the refrigerant loop to realize heat exchange with the refrigerant in the refrigerant loop, and the second heat exchanger is in contact with the first heat exchanger, so that the refrigerating capacity and the heating capacity of the refrigerator are improved, and reduction of the refrigerating or heating efficiency in the refrigerant loop of the air conditioner caused by pressure loss during heating or refrigerating of the air conditioner is avoided; the temperature in the refrigerator can be further controlled, and the efficiency of the heat management system when the air conditioner and the refrigerator are used at the same time is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a thermal management system and a vehicle. Background Art

[0002] In the existing technology, in some vehicles that can realize refrigerator heating or cooling, when the refrigerator, air conditioner, and battery pack are heating or cooling at the same time, one aspect of the experience is generally sacrificed. For example, ensuring that the air conditioner cools the passenger compartment will cause the cooling capacity inside the refrigerator to decrease, affecting the user experience. It is impossible to achieve simultaneous cooling and heating of the refrigerator, air conditioner, and battery pack, and the temperature regulation accuracy of cooling and heating is low. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide a thermal management system that enables a vehicle refrigerator to have both cooling and heating functions.

[0004] Another object of the present invention is to provide a vehicle comprising the thermal management system described above.

[0005] According to the thermal management system of the first embodiment of the present utility model, it includes: an air-conditioning module and a refrigerator module. The air-conditioning module includes an in-vehicle heat exchanger, an out-vehicle heat exchanger and a compressor connected to form a refrigerant circuit; the refrigerator module includes a first heat exchanger and a second heat exchanger, the first heat exchanger is connected to the refrigerant circuit, the second heat exchanger is in contact with the first heat exchanger, and the first heat exchanger and the second heat exchanger exchange heat.

[0006] According to the thermal management system of the embodiment of the present invention, the first heat exchanger is connected to the refrigerant circuit to realize heat exchange with the refrigerant in the refrigerant circuit, and the second heat exchanger is used to contact the first heat exchanger. The active heat exchange of the second heat exchanger transfers the heat of the first heat exchanger to realize cooling or heating of the refrigerator, thereby improving the cooling capacity and heating capacity of the refrigerator, avoiding pressure loss when the air conditioner is heating or cooling, resulting in a decrease in the cooling or heating efficiency of the air conditioner refrigerant circuit, which is conducive to further control of the internal temperature of the refrigerator and improving the efficiency of the thermal management system when the air conditioner and the refrigerator are used at the same time.

[0007] In some embodiments, the second heat exchanger includes a semiconductor refrigeration plate

[0008] In some embodiments, the refrigerator module includes: an inner liner, the second heat exchanger is provided on the outer wall of the inner liner, and the second heat exchanger exchanges heat with the inner liner.

[0009] In some embodiments, the second heat exchanger includes a cold surface and a hot surface facing each other, and heat is exchanged between the cold surface and the hot surface.

[0010] In some embodiments, the refrigerator module includes: an insulation layer, the insulation layer defines a accommodating cavity, the inner liner is arranged in the accommodating cavity, and the first heat exchanger and the second heat exchanger are arranged between the insulation layer and the inner liner.

[0011] In some embodiments, the in-vehicle heat exchanger includes: an in-vehicle evaporator, the first end of the in-vehicle evaporator and the first end of the first heat exchanger are both connected to the second end of the out-vehicle heat exchanger, the second end of the in-vehicle evaporator and the second end of the first heat exchanger are both connected to the inlet of the compressor, and the out-vehicle heat exchanger is connected to at least one of the in-vehicle evaporator and the first heat exchanger.

[0012] In some embodiments, the in-vehicle heat exchanger includes an in-vehicle condenser, a first end of the in-vehicle condenser is connected to the outlet of the compressor, and a second end of the in-vehicle condenser is connected to the first end of the out-vehicle heat exchanger.

[0013] In some embodiments, the thermal management system includes: a first on-off valve connected between the second end of the in-vehicle condenser and the first end of the out-vehicle heat exchanger.

[0014] In some embodiments, the thermal management system further includes: a first throttle valve and a second throttle valve, wherein the first throttle valve is connected between the second end of the external heat exchanger and the first end of the first heat exchanger; the second throttle valve is connected between the second end of the external heat exchanger and the first end of the internal evaporator.

[0015] In some embodiments, the thermal management system has at least one of an air conditioning cooling mode, an air conditioning and refrigerator synchronous cooling mode, and a refrigerator cooling mode;

[0016] When the thermal management system is in the air conditioning cooling mode, the first on-off valve and the second throttle valve are turned on, the first throttle valve is turned off, the external heat exchanger acts as a condenser, and the internal evaporator acts as an evaporator;

[0017] When the thermal management system is in the air conditioner and refrigerator synchronous cooling mode, the first on-off valve, the first throttle valve, and the second throttle valve are turned on, the external heat exchanger acts as a condenser, and the internal evaporator and the first heat exchanger act as an evaporator;

[0018] When the thermal management system is in the refrigerator cooling mode, the first on-off valve and the first throttle valve are turned on, the second throttle valve is turned off, the external heat exchanger acts as a condenser, and the first heat exchanger acts as an evaporator.

[0019] In some embodiments, the thermal management system also includes: a second on-off valve and a third throttle valve, the second on-off valve is connected between the second end of the external heat exchanger and the inlet of the compressor; the third throttle valve is connected between the second end of the in-vehicle condenser and the first end of the external heat exchanger, and the third throttle valve is connected in parallel with the first on-off valve.

[0020] In some embodiments, the thermal management system has at least one of an air conditioning heating mode, an air conditioning and refrigerator synchronous heating mode, and a refrigerator heating mode;

[0021] When the thermal management system is in the air conditioning heating mode, the third throttle valve and the second on-off valve are turned on, the first throttle valve, the second throttle valve, and the first on-off valve are turned off, the in-vehicle condenser functions as a condenser, and the out-vehicle heat exchanger functions as an evaporator;

[0022] When the thermal management system is in the synchronous heating mode of the air conditioner and refrigerator, the third throttle valve and the second on-off valve are open, the first throttle valve, the second throttle valve, and the first on-off valve are closed, the in-vehicle condenser acts as a condenser, the out-vehicle heat exchanger acts as an evaporator, the second heat exchanger is opened, and the hot surface of the second heat exchanger contacts the inner tank;

[0023] When the thermal management system is in the refrigerator heating mode, the first on-off valve, the second on-off valve, the first throttle valve, the second throttle valve, and the third throttle valve are closed, the second heat exchanger is opened, and the hot surface of the second heat exchanger is in contact with the inner tank.

[0024] In some embodiments, the thermal management system has at least one of an air conditioning dehumidification mode and an air conditioning demisting mode;

[0025] When the thermal management system is in the air conditioning dehumidification mode, the first on-off valve and the second throttle valve are open, the second on-off valve, the first throttle valve, and the third throttle valve are closed, the external heat exchanger acts as a condenser, and the internal evaporator acts as an evaporator;

[0026] When the thermal management system is in the air-conditioning defogger mode, the third throttle valve and the second on-off valve are turned on, the first on-off valve, the first throttle valve and the second throttle valve are turned off, the in-vehicle condenser acts as a condenser, and the out-vehicle heat exchanger acts as an evaporator.

[0027] In some embodiments, the thermal management system includes: a battery heat exchange module, the first end of the battery heat exchange module is connected to the two ends of the external heat exchanger, and the second end of the battery heat exchange module is respectively connected to the outlet of the compressor and the inlet of the compressor.

[0028] In some embodiments, the battery heat exchange module includes: a battery pack heat exchanger, a third on-off valve, and a fourth on-off valve. The first end of the battery pack heat exchanger is connected to both ends of the external heat exchanger; the third on-off valve is connected between the second end of the battery pack heat exchanger and the inlet of the compressor to control the on-off between the battery pack heat exchanger and the inlet of the compressor; the fourth on-off valve is connected between the second end of the battery pack heat exchanger and the outlet of the compressor to control the on-off between the battery pack heat exchanger and the outlet of the compressor.

[0029] In some embodiments, the battery heat exchange module includes: a fourth throttle valve and a fifth throttle valve, the first end of the fourth throttle valve is connected to the second end of the battery pack heat exchanger, and the second end of the fourth throttle valve is connected to the third on-off valve and the fourth on-off valve; the first end of the fifth throttle valve is connected to both ends of the off-vehicle heat exchanger, and the second end of the fifth throttle valve is connected to the first end of the battery pack heat exchanger.

[0030] In some embodiments, the external heat exchanger includes: a first external heat exchanger, the first end of the first external heat exchanger is connected to the second end of the in-vehicle condenser, and the second end of the first external heat exchanger is respectively connected to the first end of the in-vehicle evaporator, the first end of the first heat exchanger and the first end of the battery pack heat exchanger.

[0031] In some embodiments, the battery heat exchange module also includes: a first one-way valve, the first end of the first one-way valve is connected between one end of the first external heat exchanger connected to the internal evaporator, the second end of the first one-way valve is connected to the first end of the first throttle valve and the first end of the fifth throttle valve, and the first one-way valve allows refrigerant to flow from the first external heat exchanger to at least one of the battery pack heat exchanger and the first heat exchanger.

[0032] In some embodiments, the thermal management system also includes a motor cooling module, which includes: a motor cooling channel, a second external heat exchanger, the second external heat exchanger is connected in parallel with the first external heat exchanger, the second external heat exchanger has a first heat exchange channel and a second heat exchange channel, the two ends of the first heat exchange channel are respectively connected to the two ends of the motor cooling channel, the first end of the second heat exchange channel is respectively connected to the first end of the fifth throttle valve, the second end of the first on-off valve and the first end of the first throttle valve, and the second end of the second heat exchange channel is connected to the inlet of the compressor.

[0033] In some embodiments, the motor cooling module further includes: a motor heat exchanger, a first end of the motor heat exchanger is connected to the motor cooling channel, and a second end of the motor heat exchanger is connected to the first heat exchange channel.

[0034] In some embodiments, the battery heat exchange module also includes: a second one-way valve, the first end of the second one-way valve is connected to the first end of the first throttle valve and the first end of the fifth throttle valve, the second end of the second one-way valve is connected to the first end of the second heat exchange channel, and the second one-way valve allows the refrigerant to flow to the second off-vehicle heat exchanger through at least one of the battery pack heat exchanger and the first heat exchanger.

[0035] In some embodiments, the air-conditioning module also includes: a fifth on-off valve and a sixth on-off valve, the first end of the fifth on-off valve being connected to the second end of the in-vehicle condenser, and the second end of the fifth on-off valve being connected to the first end of the first external heat exchanger; the first end of the sixth on-off valve being connected to one end of the in-vehicle condenser connected to the fifth on-off valve, and the second end of the sixth on-off valve being connected to the first end of the second heat exchange channel.

[0036] In some embodiments, the thermal management system has a battery pack cooling mode; when the thermal management system is in the battery pack cooling mode, the first on-off valve, the fifth on-off valve, the first one-way valve, the fifth throttle valve, the fourth throttle valve, and the fourth on-off valve are turned on, and the third throttle valve, the sixth on-off valve, the second on-off valve, and the second throttle valve are turned off, the first off-vehicle heat exchanger acts as a condenser, and the battery pack heat exchanger acts as an evaporator.

[0037] In some embodiments, the thermal management system has a synchronous cooling mode for air conditioning and battery pack; when the thermal management system is in the synchronous cooling mode for air conditioning and battery pack, the first on-off valve, the fifth on-off valve, the first one-way valve, the fifth throttle valve, the fourth throttle valve, the fourth on-off valve, and the second throttle valve are turned on, and the third throttle valve, the sixth on-off valve, and the second on-off valve are turned off, the first external heat exchanger acts as a condenser, and the battery pack heat exchanger and the internal evaporator act as evaporators.

[0038] In some embodiments, the refrigerator module also includes: a sixth throttle valve, the first end of the sixth throttle valve is connected to the second end of the first heat exchanger, and the second end of the sixth throttle valve is connected to the first end of the third on-off valve and the first end of the fourth on-off valve.

[0039] In some embodiments, the thermal management system has a synchronous cooling mode for air conditioning, battery pack and refrigerator; when the thermal management system is in the synchronous cooling mode for air conditioning, battery pack and refrigerator, the second heat exchanger is turned on, the first on-off valve, the fifth on-off valve, the first one-way valve, the fifth throttle valve, the fourth throttle valve, the third on-off valve, the second throttle valve, the first throttle valve and the sixth throttle valve are turned on, the third throttle valve, the sixth on-off valve and the second on-off valve are turned off, the first external heat exchanger acts as a condenser, the battery pack heat exchanger, the internal evaporator and the first heat exchanger act as evaporators.

[0040] In some embodiments, the thermal management system has a synchronous cooling mode for the battery pack and the refrigerator; when the thermal management system is in the synchronous cooling mode for the battery pack and the refrigerator, the second heat exchanger is turned on, the first on-off valve, the third on-off valve, the first one-way valve, the sixth throttle valve, the fourth throttle valve, the first throttle valve, the fifth throttle valve, and the third on-off valve are turned on, and the third throttle valve, the sixth on-off valve, the second throttle valve, and the second on-off valve are turned off, the first external heat exchanger acts as a condenser, and the battery pack heat exchanger and the first heat exchanger act as an evaporator.

[0041] In some embodiments, the thermal management system has a battery pack heating mode; when the thermal management system is in the battery pack heating mode, the fourth on-off valve, the fourth throttle valve, the fifth throttle valve, the second one-way valve, the sixth on-off valve, and the second on-off valve are turned on, and the first on-off valve, the third throttle valve, the fifth on-off valve, the third on-off valve, the first one-way valve, and the second throttle valve are turned off, the battery pack heat exchanger acts as a condenser, and the first heat exchanger acts as an evaporator.

[0042] In some embodiments, the thermal management system has a synchronous heating mode for air conditioning and battery pack; when the thermal management system is in the synchronous heating mode for air conditioning and battery pack, the third throttle valve, the sixth on-off valve, the fourth throttle valve, the fifth throttle valve, the second one-way valve, the fourth on-off valve, and the second on-off valve are turned on, and the first on-off valve, the fifth on-off valve, the second throttle valve, the first one-way valve, and the third on-off valve are turned off, the in-vehicle condenser and the battery pack heat exchanger act as a condenser, and the second out-of-vehicle heat exchanger acts as an evaporator.

[0043] In some embodiments, the thermal management system has a synchronous heating mode for the air conditioner, battery pack and refrigerator; when the thermal management system is in the synchronous heating mode for the air conditioner, battery pack and refrigerator, the second heat exchanger is turned on, the third throttle valve, the fourth on-off valve, the sixth on-off valve, the fourth throttle valve, the fifth throttle valve, the sixth throttle valve, the first throttle valve, the second one-way valve and the second on-off valve are turned on, the first on-off valve, the fifth on-off valve, the first one-way valve, the third on-off valve and the second throttle valve are turned off, the in-vehicle condenser and the battery pack heat exchanger act as condensers, and the first heat exchanger and the second out-of-vehicle heat exchanger act as evaporators.

[0044] In some embodiments, the thermal management system has a synchronous heating mode for the battery pack and the refrigerator; when the thermal management system is in the synchronous heating mode for the battery pack and the refrigerator, the second heat exchanger is turned on, the fourth on-off valve, the fourth throttle valve, the sixth throttle valve, the second one-way valve, the sixth on-off valve, the fifth throttle valve, the first throttle valve, and the second on-off valve are turned on, and the third throttle valve, the first on-off valve, the fifth on-off valve, the second throttle valve, the third on-off valve and the first one-way valve are turned off, the in-vehicle condenser, the battery pack heat exchanger and the first heat exchanger act as a condenser, and the second out-of-vehicle heat exchanger acts as an evaporator.

[0045] The vehicle according to the second embodiment of the present invention includes the thermal management system described in any one of the above embodiments.

[0046] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0048] Figure 1 is a schematic diagram of a first heat exchanger and a second heat exchanger according to an embodiment of the present utility model;

[0049] Figure 2 This is a schematic diagram of the refrigerant flow path in the air conditioning cooling mode according to an embodiment of the present utility model;

[0050] Figure 3 This is a schematic diagram of the refrigerant flow path in the synchronous heating mode of the air conditioner and refrigerator according to an embodiment of the present utility model;

[0051] Figure 4 This is a schematic diagram of a refrigerant flow path in a refrigerator in refrigeration mode according to an embodiment of the present invention;

[0052] Figure 5 This is a schematic diagram of the refrigerant flow path in the heating mode of the air conditioner according to an embodiment of the present utility model;

[0053] Figure 6 This is a schematic diagram of the refrigerant flow path in the synchronous heating mode of the air conditioner and refrigerator according to an embodiment of the present utility model;

[0054] Figure 7 This is a schematic diagram of the refrigerant flow path in the heating mode of the refrigerator according to an embodiment of the present invention;

[0055] Figure 8 This is a schematic diagram of the refrigerant flow path in the air-conditioning dehumidification mode according to an embodiment of the present invention;

[0056] Figure 9 This is a schematic diagram of the refrigerant flow path in the demisting mode of the air conditioner according to an embodiment of the present utility model;

[0057] Figure 10 This is a schematic diagram of the refrigerant flow path in the air conditioner and battery pack synchronous cooling mode according to an embodiment of the present utility model;

[0058] Figure 11 This is a schematic diagram of the refrigerant flow path in the synchronous cooling mode of the air conditioner, battery pack and refrigerator according to an embodiment of the present utility model;

[0059] Figure 12 This is a schematic diagram of the refrigerant flow path in the battery and refrigerator synchronous cooling mode according to an embodiment of the present utility model;

[0060] Figure 13 This is a schematic diagram of the refrigerant flow path in the battery pack cooling mode according to an embodiment of the present utility model;

[0061] Figure 14 This is a schematic diagram of the refrigerant flow path in the air conditioner and battery pack synchronous heating mode according to an embodiment of the present utility model;

[0062] Figure 15 This is a schematic diagram of the refrigerant flow path in the synchronous heating mode of the air conditioner, battery pack and refrigerator according to an embodiment of the present utility model;

[0063] Figure 16 This is a schematic diagram of the refrigerant flow path in the battery pack heating and refrigerator synchronous heating mode according to an embodiment of the present invention;

[0064] Figure 17 This is a schematic diagram of the refrigerant flow path in the battery pack heating mode according to an embodiment of the present invention.

[0065] Reference numerals:

[0066] 100. Thermal management system;

[0067] 10. Air conditioning module; 11. Compressor; 12. External heat exchanger; 121. First external heat exchanger; 13. Internal heat exchanger; 131. Internal condenser; 132. Internal evaporator;

[0068] 20. Refrigerator module; 21. First heat exchanger; 22. Inner container; 221. Third heat exchanger; 23. Second heat exchanger; 232. Cold surface; 233. Hot surface; 24. Insulation layer;

[0069] 31. First on-off valve; 32. Second on-off valve; 33. Fifth on-off valve; 34. Sixth on-off valve; 35. Fourth on-off valve; 36. Third on-off valve;

[0070] 41. First throttle valve; 42. Second throttle valve; 43. Third throttle valve; 44. Fifth throttle valve; 45. Fourth throttle valve; 46. Sixth throttle valve;

[0071] 51. Second one-way valve; 52. First one-way valve;

[0072] 60. Battery heat exchange module; 61. Battery pack heat exchanger;

[0073] 70. Motor cooling module; 71. Second off-board heat exchanger; 711. First heat exchange channel; 712. Second heat exchange channel; 72. Motor cooling channel; 73. Three-way valve; 74. Motor heat exchanger;

[0074] 80. Gas-liquid separator. DETAILED DESCRIPTION

[0075] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-17 A thermal management system 100 according to an embodiment of the present invention is described, including an air conditioning module 10 and a refrigerator module 20 .

[0076] Specifically, if Figure 1 As shown, the air-conditioning module 10 includes an in-vehicle heat exchanger, an out-vehicle heat exchanger 12 and a compressor 11 connected to form a refrigerant circuit; the refrigerator module 20 includes a first heat exchanger 21 and a second heat exchanger 23, the first heat exchanger 21 is connected to the refrigerant circuit, the second heat exchanger 23 is in contact with the first heat exchanger 21, and the first heat exchanger 21 and the second heat exchanger 23 exchange heat.

[0077] In this embodiment, a first heat exchanger 21 is connected to the refrigerant circuit to exchange heat with the refrigerant in the refrigerant circuit. The first heat exchanger 21 contacts a second heat exchanger 23, which contacts an inner container 22 included in the refrigerator. The second heat exchanger 23 is located on the outer wall of the inner container 22, and the first heat exchanger 21 is located on the side of the second heat exchanger 23 away from the inner container 22. The first heat exchanger 21 and the second heat exchanger 23 can gradually cool the refrigerator. The second heat exchanger 23 can transfer heat between the first heat exchanger 21 and the inner container 22 to regulate the temperature inside the refrigerator, avoiding the problems of insufficient cooling capacity and low efficiency in existing thermal management systems when cooling refrigerators. The provision of the second heat exchanger 23 can achieve the desired effect when the temperature of the first heat exchanger 21 is affected by the temperature of the refrigerant circuit and cannot actively control, for example, the temperature inside the refrigerator.

[0078] According to the thermal management system 100 of the embodiment of the present invention, the first heat exchanger 21 is connected to the refrigerant circuit to realize heat exchange with the refrigerant in the refrigerant circuit, and the second heat exchanger 23 is used to contact the first heat exchanger 21. The active heat exchange of the second heat exchanger 23 transfers the heat of the first heat exchanger 21 to realize cooling or heating of the refrigerator, thereby improving the cooling capacity and heating capacity of the refrigerator, avoiding pressure loss during heating or cooling of the air conditioner, resulting in a reduction in the cooling or heating efficiency in the air conditioner refrigerant circuit, and facilitating further control of the internal temperature of the refrigerator, thereby improving the efficiency of the thermal management system 100 when the air conditioner and the refrigerator are used at the same time.

[0079] In some embodiments, combined Figure 1 The second heat exchanger 23 includes a semiconductor refrigeration chip. The semiconductor refrigeration chip contacts the first heat exchanger 21 to exchange heat with the first heat exchanger 21. A semiconductor refrigeration chip, also known as a thermoelectric refrigeration chip, is a type of heat pump. The principle of a semiconductor refrigeration chip is based on the Peltier effect of semiconductor materials. This effect states that when direct current passes through a galvanic couple formed by two different semiconductor materials (such as P-type and N-type semiconductors) in series, the two ends of the galvanic couple absorb and release heat, respectively, thereby achieving cooling. A semiconductor refrigeration chip is typically composed of multiple stacked P-type and N-type semiconductor materials, forming a PN junction. When an external power supply is applied, electrons flow through the PN junction. As electrons move from the P-type material to the N-type material, electron-hole pairs are formed, resulting in heat absorption at one end and heat release at the other, forming hot and cold ends.

[0080] In some embodiments, combined Figure 1The refrigerator module 20 includes an inner container 22 and a second heat exchanger 23 located on the outer wall of the inner container. The second heat exchanger exchanges heat with the inner container. The inner container 22 is used to hold food and beverages that need to be refrigerated or heated. For example, the first heat exchanger 21 can remove heat transferred from the second heat exchanger 23, thereby reducing the temperature of the inner container 22. The refrigerant in the first heat exchanger 21 changes phase from liquid to gas, absorbing heat and improving the efficiency of the second heat exchanger 23.

[0081] In some embodiments, as Figure 1 As shown, the second heat exchanger 23 includes a cold surface 232 and a hot surface 233 that are opposed to each other, and heat can be exchanged between the cold surface 232 and the hot surface 233. For example, the cold surface 232 can be in contact with the inner container, and the hot surface 233 can be in contact with the first heat exchanger 21. When the refrigerator is cooling, the cold surface 232 absorbs heat from the refrigerator interior and transfers it to the hot surface 233. Since the hot surface 233 is in contact with the first heat exchanger 21, the first heat exchanger 21 can remove heat from the hot surface 233 to lower the temperature of the second heat exchanger 23, thereby improving the cooling efficiency of the refrigerator.

[0082] Optionally, the refrigerator module 20 includes an insulation layer 24 defining a receiving cavity within which the inner liner 22 is disposed. The first heat exchanger 21 and the second heat exchanger 23 are disposed between the insulation layer 24 and the inner liner 22. In other words, the insulation layer 24 is disposed outside the multiple heat exchangers to prevent the effects of heat transfer between the heat exchangers, thereby improving the refrigerator's thermal insulation and reducing energy consumption. The refrigerator module 20 also includes a foam door, which, along with the insulation layer 24, is attached to the outer periphery of the inner liner 22 to provide insulation and protection.

[0083] In this embodiment, an efficient dual-opening mode of air conditioning cooling and refrigerator cooling can be achieved. That is, when the vehicle refrigerator and the air conditioner are turned on in the cooling mode at the same time, the refrigerant is throttled and enters the vehicle heat exchanger and the first heat exchanger 21 respectively. Since the outlets of the two heat exchangers merge and enter the inlet of the compressor 11 together, the pressures of the two are the same. According to the refrigeration principle, the evaporation temperature of the refrigerant flowing through the first heat exchanger 21 is also the same as the evaporation temperature of the refrigerant in the vehicle evaporator 132. Based on the requirement for air conditioning use, the evaporation temperature is about 0-5°C. The medium-temperature refrigerant of about 0-5°C flows into the refrigerant heat exchanger of the vehicle refrigerator and contacts the hot surface 233 of the second heat exchanger 23. The medium-temperature refrigerant absorbs heat, and the semiconductor refrigeration plate of the second heat exchanger 23 is energized and operates, transferring the heat absorbed by its own cold surface 232 to the hot surface 233 and transferring it to the first heat exchanger 21. The inner tank contacts the cold surface 232 of the second heat exchanger 23 for heat conduction, absorbing and taking away the heat in the vehicle refrigerator, completing the entire refrigeration cycle. In this way, the second heat exchanger 23 can still meet the refrigeration or freezing requirements of the vehicle refrigerator even when the first heat exchanger 21 is not required to provide a sufficiently low temperature. The passenger compartment air conditioning refrigeration circuit can cool the passenger compartment according to its own evaporation temperature requirement, eliminating the need for artificial pressure reduction before merging with the vehicle refrigerator refrigeration circuit and entering compressor 11. This reduces the reduction in cooling capacity and efficiency caused by pressure loss.

[0084] In some embodiments, as Figure 2 As shown, the in-vehicle heat exchanger includes an in-vehicle evaporator 132. The first end of the in-vehicle evaporator 132 and the first end of the first heat exchanger 21 are both connected to the second end of the external heat exchanger 12. The second end of the in-vehicle evaporator 132 and the second end of the first heat exchanger 21 are both connected to the inlet of the compressor 11. The external heat exchanger 12 is in communication with at least one of the in-vehicle evaporator 132 and the first heat exchanger 21. For example, when the air conditioner is cooling, the external heat exchanger 12 is in communication with the in-vehicle evaporator 132. When the refrigerator is cooling, the external heat exchanger 12 is in communication with the first heat exchanger 21. When the air conditioner and the refrigerator are cooling simultaneously, the external heat exchanger 12 is in communication with both the in-vehicle evaporator 132 and the first heat exchanger 21.

[0085] In some embodiments, the in-vehicle heat exchanger includes an in-vehicle condenser 131, a first end of which is connected to the outlet of the compressor 11, and a second end of which is connected to the first end of the out-vehicle heat exchanger 12. The in-vehicle condenser 131 can reduce the temperature of the refrigerant as needed.

[0086] Optionally, refer to Figure 2 The thermal management system 100 includes a first on-off valve 31 connected between the second end of the in-vehicle condenser 131 and the first end of the out-vehicle heat exchanger 12 .

[0087] The thermal management system 100 also includes: a first throttle valve 41 and a second throttle valve 42, the first throttle valve 41 is connected between the second end of the external heat exchanger 12 and the first end of the first heat exchanger 21; the second throttle valve 42 is connected between the second end of the external heat exchanger 12 and the first end of the internal evaporator 132.

[0088] In some embodiments, combined Figure 2-Figure 4 The thermal management system 100 has at least one of an air conditioning cooling mode, an air conditioning and refrigerator synchronous cooling mode, and a refrigerator cooling mode.

[0089] like Figure 2 As shown, when the thermal management system 100 is in the air conditioning cooling mode, the first on-off valve 31 and the second throttle valve 42 are turned on, the first throttle valve 41 is turned off, the outdoor heat exchanger 12 acts as a condenser, and the indoor evaporator 132 acts as an evaporator.

[0090] In cooling mode, compressor 11 compresses and discharges high-temperature, high-pressure gas. The outlet of compressor 11 is connected to in-vehicle condenser 131, which serves only as a flow path. At this point, the outlet of in-vehicle condenser 131 is still high-temperature, high-pressure gas. The outlet of in-vehicle condenser 131 is connected to external heat exchanger 12 via first on-off valve 31. The refrigerant exchanges heat with the environment through external heat exchanger 12, releasing heat. The outlet of external heat exchanger 12 is a medium-temperature, high-pressure fluid. The outlet of the outdoor heat exchanger 12 is connected to the second throttle valve 42. The refrigerant is throttled and cooled by the second throttle valve 42 and becomes low-temperature, low-pressure wet steam or supercooled liquid. The high-temperature air after throttling by the second throttle valve 42 passes through the in-vehicle evaporator 132. The in-vehicle evaporator 132 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle for cooling. The outlet refrigerant of the in-vehicle evaporator 132 is a low-temperature, low-pressure fluid. The low-temperature, low-pressure fluid flows through the outlet of the in-vehicle evaporator 132 to the gas-liquid separator 80. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage for the refrigerant gas to ensure stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0091] like Figure 3 As shown, when the thermal management system 100 is in the air conditioning and refrigerator synchronous cooling mode, the first on-off valve 31, the first throttle valve 41, and the second throttle valve 42 are turned on, the outdoor heat exchanger 12 acts as a condenser, and the indoor evaporator 132 and the first heat exchanger 21 act as an evaporator.

[0092] In the simultaneous cooling mode of the air conditioner and refrigerator, compressor 11 compresses and discharges high-temperature, high-pressure gas. The in-vehicle condenser 131 is connected to the outlet of compressor 11. At this point, in-vehicle condenser 131 serves only as a flow channel for the refrigerant, and the outlet of in-vehicle condenser 131 still contains high-temperature, high-pressure gas. The high-temperature, high-pressure gas then flows through the outlet of in-vehicle condenser 131 and is connected to the external heat exchanger 12 via the first on-off valve 31. The refrigerant exchanges heat with the ambient air through the external heat exchanger 12, lowering its temperature. The outlet of the external heat exchanger 12 then contains a medium-temperature, high-pressure fluid. After passing through the outdoor heat exchanger 12, the refrigerant forms two branches. In branch 1, the first outdoor heat exchanger 12 is connected to the second throttle valve 42. The refrigerant is throttled and cooled by the second throttle valve 42 to become low-temperature, low-pressure wet steam or supercooled liquid. It is connected to the indoor evaporator 132 through the outlet of the second throttle valve 42. At this time, high-temperature air passes through the indoor evaporator 132, so that the indoor evaporator 132 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the interior of the vehicle for cooling. The refrigerant at the outlet of the indoor evaporator 132 is a low-temperature, low-pressure fluid.

[0093] In branch 2, the outdoor heat exchanger 12 is connected to the first throttle valve 41. The refrigerant is throttled and cooled by the first throttle valve 41, and becomes low-temperature and low-pressure wet steam or supercooled liquid. The wet steam or supercooled liquid is connected to the first heat exchanger 21 through the outlet of the first throttle valve 41. At this time, the first heat exchanger 21 acts as an evaporator, which can take away the heat of the hot surface 233 of the second heat exchanger 23, thereby utilizing the refrigeration system and the second heat exchanger 23 to relay cooling and provide it to the vehicle refrigerator for refrigeration. The outlet refrigerant of the first heat exchanger 21 of the vehicle refrigerator is a low-temperature and low-pressure fluid. The low-temperature and low-pressure fluid passes through the outlet of the in-vehicle evaporator 132 and the outlet of the first heat exchanger 21 of the vehicle refrigerator and is connected to the gas-liquid separator 80. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage of the refrigerant gas to ensure stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0094] like Figure 4 As shown, when the thermal management system 100 is in the refrigerator cooling mode, the first on-off valve 31 and the first throttle valve 41 are turned on, the second throttle valve 42 is turned off, the outdoor heat exchanger 12 acts as a condenser, and the first heat exchanger 21 acts as an evaporator.

[0095] In the refrigerator's cooling mode, compressor 11 compresses and discharges high-temperature, high-pressure gas, which flows to interior condenser 131. Since interior condenser 131 serves only as a flow path, the outlet of interior condenser 131 remains high-temperature, high-pressure gas. This high-temperature, high-pressure gas passes through the outlet of interior condenser 131 and connects to exterior heat exchanger 12 via first on-off valve 31. The refrigerant exchanges heat with the ambient air through exterior heat exchanger 12, lowering its temperature. The outlet of exterior heat exchanger 12 now contains medium-temperature, high-pressure fluid. Exterior heat exchanger 12 is connected to first throttle valve 41, which throttles the medium-temperature, high-pressure fluid through the first throttle valve 41, reducing its temperature and converting it into low-temperature, low-pressure wet steam or subcooled liquid. Because the outlet of first throttle valve 41 is connected to first heat exchanger 21 of the vehicle refrigerator, first heat exchanger 21 acts as an evaporator, removing heat from hot surface 233 of second heat exchanger 23. This provides cooling to the vehicle refrigerator through relay cooling by the refrigeration system and second heat exchanger 23. The refrigerant at the outlet of first heat exchanger 21 of the vehicle refrigerator is a low-temperature, low-pressure fluid. This low-temperature, low-pressure fluid is connected to gas-liquid separator 80 through the outlet of first heat exchanger 21. Gas-liquid separator 80 separates the refrigerant from the refrigeration oil and serves as an intermediate storage for the refrigerant gas, ensuring stable suction to compressor 11. Finally, the refrigerant returns to compressor 11, completing the cycle.

[0096] In some embodiments, the thermal management system 100 also includes: a second on-off valve 32 and a third throttle valve 43, the second on-off valve 32 is connected between the second end of the external heat exchanger 12 and the inlet of the compressor 11; the third throttle valve 43 is connected between the second end of the in-vehicle condenser 131 and the first end of the external heat exchanger 12, and the third throttle valve 43 is connected in parallel with the first on-off valve 31.

[0097] Combine Figure 5-Figure 7 The thermal management system 100 has at least one of an air conditioning heating mode, an air conditioning and refrigerator synchronous heating mode, and a refrigerator heating mode.

[0098] like Figure 5 As shown, when the thermal management system 100 is in the air-conditioning heating mode, the third throttle valve 43 and the second on-off valve 32 are turned on, the first throttle valve 41, the second throttle valve 42 and the first on-off valve 31 are turned off, the in-vehicle condenser 131 acts as a condenser, and the out-vehicle heat exchanger 12 acts as an evaporator.

[0099] In heating mode, compressor 11 compresses and discharges high-temperature, high-pressure gas. This high-temperature, high-pressure gas flows from the outlet of compressor 11 to condenser 131 inside the vehicle. The low-temperature air is heated by condenser 131 to high-temperature air, which is then supplied to the vehicle interior for heating. The refrigerant is cooled by condenser 131 to a medium-temperature, high-pressure fluid before flowing to third throttle valve 43. The refrigerant is throttled and cooled by the throttle valve, becoming low-temperature, low-pressure wet steam or a subcooled liquid. The outlet of third throttle valve 43 is connected to external heat exchanger 12, which functions as an evaporator. The refrigerant is heated by the ambient air, absorbing heat from the ambient air. The refrigerant at the outlet of external heat exchanger 12 is a low-temperature, low-pressure fluid. This low-temperature, low-pressure fluid passes through the outlet of external heat exchanger 12 and is connected to gas-liquid separator 80 via second on-off valve 32. Gas-liquid separator 80 separates the refrigerant from the refrigeration oil and serves as an intermediate storage for the refrigerant gas, ensuring stable intake of air by compressor 11. Finally, the refrigerant returns to compressor 11, completing the cycle.

[0100] like Figure 6 As shown, when the thermal management system 100 is in the synchronous heating mode of the air conditioner and refrigerator, the third throttle valve 43 and the second on-off valve 32 are turned on, the first throttle valve 41, the second throttle valve 42, and the first on-off valve 31 are turned off, the in-vehicle condenser 131 acts as a condenser, the out-vehicle heat exchanger 12 acts as an evaporator, the second heat exchanger 23 is turned on, and the hot surface 233 of the second heat exchanger 23 is in contact with the inner tank 22.

[0101] In the simultaneous heating mode of the air conditioner and refrigerator, compressor 11 compresses and discharges high-temperature, high-pressure gas. This high-temperature, high-pressure gas flows to the in-vehicle condenser 131 adjacent to the outlet of compressor 11. The low-temperature air is heated by in-vehicle condenser 131 to high-temperature air, which is then supplied to the interior of the vehicle for heating. The refrigerant is cooled by in-vehicle condenser 131 to a medium-temperature, high-pressure fluid, which then flows to third throttle valve 43. The refrigerant is throttled and cooled by third throttle valve 43, becoming low-temperature, low-pressure wet steam or a subcooled liquid. The outlet of third throttle valve 43 is connected to the exterior heat exchanger 12, which functions as an evaporator. The refrigerant is heated by the ambient air, completing the heat absorption process. The refrigerant at the outlet of the external heat exchanger 12 is a low-temperature and low-pressure fluid. The outlet of the external heat exchanger 12 is connected to the gas-liquid separator 80 through the second on-off valve 32. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage of the refrigerant gas to ensure stable air suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle to realize air conditioning and heating.

[0102] In addition, the refrigerator is heated by using a semiconductor refrigeration sheet. The semiconductor refrigeration sheet is reversely energized so that the end thereof in contact with the natural convection heat exchanger inside the refrigerator becomes a hot surface 233, thereby heating the refrigerator by using the semiconductor refrigeration sheet.

[0103] like Figure 7As shown, when the thermal management system 100 is in the refrigerator heating mode, the first on-off valve 31, the second on-off valve 32, the first throttle valve 41, the second throttle valve 42, and the third throttle valve 43 are closed, the second heat exchanger 23 is opened, and the hot surface 233 of the second heat exchanger 23 is in contact with the inner tank 22.

[0104] In the refrigerator heating mode, the semiconductor hot surface 233 is used to heat the refrigerator. At this time, all valves are closed, and the semiconductor refrigeration plate is energized in reverse, so that the end that contacts the natural convection heat exchanger inside the refrigerator becomes the hot surface 233, thereby realizing the heating of the refrigerator by the semiconductor.

[0105] In some embodiments, combined Figure 8 and Figure 9 , the thermal management system 100 has at least one of an air conditioning dehumidification mode and an air conditioning demisting mode.

[0106] like Figure 8 As shown, when the thermal management system 100 is in the air conditioning dehumidification mode, the first on-off valve 31 and the second throttle valve 42 are turned on, the second on-off valve 32, the first throttle valve 41 and the third throttle valve 43 are turned off, the outdoor heat exchanger 12 acts as a condenser, and the indoor evaporator 132 acts as an evaporator.

[0107] In the dehumidification mode, compressor 11 compresses and discharges high-temperature, high-pressure gas. The outlet of compressor 11 is connected to the in-vehicle condenser 131, which releases heat as needed. At this point, the outlet of in-vehicle condenser 131 is still high-temperature, high-pressure gas. This high-temperature, high-pressure gas flows through first on-off valve 31 to the external heat exchanger 12. The refrigerant exchanges heat with the environment through external heat exchanger 12, releasing heat. The outlet of external heat exchanger 12 is a medium-temperature, high-pressure fluid. External heat exchanger 12 is connected to second throttle valve 42, where the refrigerant is throttled and cooled, becoming low-temperature, low-pressure wet vapor or a subcooled liquid. The outlet of the second throttle valve 42 is connected to the in-vehicle evaporator 132. High-temperature air is now passing through the in-vehicle evaporator 132, which acts as an evaporator. The high-humidity air is cooled, condensing water, and the absolute humidity content in the vehicle decreases. If temperature compensation is required after dehumidification, the air in the vehicle passing through the in-vehicle evaporator 132 partially flows through the in-vehicle condenser 131 for heating, thereby controlling the in-vehicle temperature while reducing the humidity. The outlet refrigerant of the in-vehicle evaporator 132 is a low-temperature, low-pressure fluid. The outlet of the in-vehicle evaporator 132 is connected to the gas-liquid separator 80, which separates the refrigerant from the refrigeration oil and serves as an intermediate storage for the refrigerant gas, ensuring stable suction to the compressor 11. Finally, the refrigerant returns to the compressor 11, completing the cycle.

[0108] like Figure 9As shown, when the thermal management system 100 is in the air-conditioning defogger mode, the third throttle valve 43 and the second on-off valve 32 are turned on, the first on-off valve 31, the first throttle valve 41 and the second throttle valve 42 are turned off, the in-vehicle condenser 131 acts as a condenser, and the out-vehicle heat exchanger 12 acts as an evaporator.

[0109] In the air conditioning demisting mode, compressor 11 compresses and discharges high-temperature, high-pressure air, which enters interior condenser 131. The low-temperature air is heated to high-temperature air by the exterior condenser 131 and blown through the defogger duct to remove mist droplets from the glass. The refrigerant is cooled by the interior condenser 131 to a medium-temperature, high-pressure fluid. The outlet of interior condenser 131 is connected to third throttle valve 43, where the refrigerant is throttled and cooled, becoming low-temperature, low-pressure wet vapor or a subcooled liquid. The outlet of the third throttle valve 43 is connected to the external heat exchanger 12. At this time, the external heat exchanger 12 is an evaporator, and the refrigerant is heated by the ambient air to complete the heat absorption process from the environment. The refrigerant at the outlet of the external heat exchanger 12 is a low-temperature and low-pressure fluid; the outlet of the external heat exchanger 12 is connected to the gas-liquid separator 80 through the second on-off valve 32. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage for the refrigerant gas to ensure that the compressor 11 has stable suction. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0110] In some embodiments, as Figure 10-17 As shown, the thermal management system 100 includes: a battery heat exchange module 60, a first end of the battery heat exchange module 60 is connected to the second end of the external heat exchanger 12, and a second end of the battery heat exchange module (60) is connected to the outlet of the compressor 11 and the inlet of the compressor 11 respectively.

[0111] For example, when the battery heat exchange module 60 needs to be heated, it is connected between the outlet of the compressor 11 and the second end of the external heat exchanger 12, and the refrigerant flows from the outlet of the compressor 11 to the inlet of the compressor 11 through the battery heat exchange module 60. When the battery heat exchange module 60 needs to be cooled, the refrigerant flows from the second end of the external heat exchanger 12 to the inlet of the compressor 11 through the battery heat exchange module 60.

[0112] The battery heat exchange module 60 includes a battery pack heat exchanger 61, a third on-off valve 36, and a fourth on-off valve 35. The first end of the battery pack heat exchanger 61 is connected to both ends of the external heat exchanger 12. The third on-off valve 36 is connected between the second end of the battery pack heat exchanger 61 and the inlet of the compressor 11 to control the on-off connection between the battery pack heat exchanger 61 and the inlet of the compressor 11. The fourth on-off valve 35 is connected between the second end of the battery pack heat exchanger 61 and the outlet of the compressor 11 to control the on-off connection between the battery pack heat exchanger 61 and the outlet of the compressor 11. Refrigerant can flow to the battery pack heat exchanger 61 through the fourth on-off valve 35. Refrigerant can flow through the battery pack heat exchanger 61 to the third on-off valve 36 and then to the inlet of the compressor 11.

[0113] Further, if Figure 10 As shown, the battery heat exchange module 60 includes: a fourth throttle valve 45 and a fifth throttle valve 44. The first end of the fourth throttle valve 45 is connected to the second end of the battery pack heat exchanger 61, and the second end of the fourth throttle valve 45 is connected to the fourth on-off valve 35 and the third on-off valve 36; the first end of the fifth throttle valve 44 is connected to both ends of the external heat exchanger 12, and the second end of the fifth throttle valve 44 is connected to the first end of the battery pack heat exchanger 61.

[0114] That is, when the refrigerant flows through the battery heat exchange module 60, the fourth on-off valve 35 opens, and the refrigerant flows through the fourth on-off valve 35 to the battery pack heat exchanger 61. Alternatively, the third on-off valve 36 opens, and the refrigerant flows through the battery pack heat exchanger 61 to the third on-off valve 36 and then to the inlet of the compressor 11.

[0115] The exterior heat exchanger 12 includes a first exterior heat exchanger 121. The first end of the first exterior heat exchanger 121 is connected to the second end of the interior condenser 131. The second end of the first exterior heat exchanger 121 is connected to the first end of the interior evaporator 132, the first end of the first heat exchanger 21, and the first end of the battery pack heat exchanger 61. Refrigerant can flow through the first exterior heat exchanger 121, the interior evaporator 132, and the battery pack heat exchanger 61.

[0116] The battery heat exchange module 60 also includes: a first one-way valve 52, the first end of the first one-way valve 52 is connected between one end of the first external heat exchanger 121 connected to the internal evaporator 132, the second end of the first one-way valve 52 is connected to the first end of the first throttle valve 41 and the first end of the fifth throttle valve 44, and the first one-way valve 52 allows the refrigerant to flow from the first external heat exchanger 121 to at least one of the battery pack heat exchanger 61 and the first heat exchanger 21.

[0117] The thermal management system also includes a motor cooling module 70, which includes a motor cooling channel 72 and a second external heat exchanger 71. The second external heat exchanger 71 is connected in parallel with the first external heat exchanger 121. The second external heat exchanger 71 has a first heat exchange channel 711 and a second heat exchange channel 712. The two ends of the first heat exchange channel 711 are respectively connected to the two ends of the motor cooling channel 72. The first end of the second heat exchange channel 712 is respectively connected to the first end of the fifth throttle valve 44, the second end of the first on-off valve 31, and the first end of the first throttle valve 41. The second end of the second heat exchange channel 712 is connected to the inlet of the compressor 11. In other words, the second external heat exchanger 71 has a first heat exchange channel 711 and a second heat exchange channel 712 for heat exchange. The first heat exchange channel 711 is connected to the heat exchange circuit of the motor cooling module 70, and the second heat exchange channel 712 is connected to the heat exchange circuit of the air conditioning module 70.

[0118] The motor cooling module 70 further includes a motor heat exchanger 74 . A first end of the motor heat exchanger 74 is connected to the motor cooling channel 72 , and a second end of the motor heat exchanger 74 is connected to the first heat exchange channel 711 .

[0119] Combine Figure 2-17 The motor cooling module 70 includes a three-way valve 73, a motor cooling channel 72, and a motor heat exchanger 74. The three-way valve 73 includes a first connecting port, a second connecting port, and a third connecting port. The motor cooling channel 72 is connected to the first connecting port. The first end of the motor heat exchanger 74 is connected to the second connecting port. The third connecting port is connected to the first end of the first heat exchange channel 711. The second end of the second heat exchange channel 711 is connected to the motor cooling channel 72 inside the motor, and the second end of the motor heat exchanger 74 is connected to the first end of the first heat exchange channel 711. In other words, the refrigerant inside the motor cooling module 70 can flow through the motor cooling channel 72, the motor heat exchanger 74, and the first heat exchange channel 711 of the second external heat exchanger 71.

[0120] For example, in air conditioning heating mode, three-way valve 73 can be used to selectively connect motor cooling channel 711 and first heat exchange channel 711. This allows heat generated during operation of motor cooling module 70 to flow through first heat exchange channel 711 within second external heat exchanger 71, exchanging heat with refrigerant flowing through second heat exchange channel 712 within second external heat exchanger 71. This allows second external heat exchanger 71 to utilize waste heat from motor cooling module 70 to absorb heat from the environment, thereby improving efficiency. Optionally, motor heat exchanger 74 is connected to motor cooling channel 72 via three-way valve 73. Motor heat exchanger 74 acts as a radiator, providing ambient temperature to first external heat exchanger 121.

[0121] The battery heat exchange module 60 also includes: a second one-way valve 51, the first end of the second one-way valve 51 is connected to the first end of the first throttle valve 41 and the first end of the fifth throttle valve 44, the second end of the second one-way valve 51 is connected to the first end of the second heat exchange channel 712, and the second one-way valve 51 allows the refrigerant to flow to the second external heat exchanger 71 through at least one of the battery pack heat exchanger 61 and the first heat exchanger 21.

[0122] The air conditioning module 10 also includes a fifth on-off valve 33 and a sixth on-off valve 34. The first end of the fifth on-off valve 33 is connected to the second end of the interior condenser 131, and the second end of the fifth on-off valve 33 is connected to the first end of the first exterior heat exchanger 121. The first end of the sixth on-off valve 34 is connected to the end of the interior condenser 131 connected to the fifth on-off valve 33, and the second end of the sixth on-off valve 34 is connected to the first end of the second exterior heat exchanger 71. The fifth on-off valve 33 controls the flow of refrigerant between the interior condenser 131 and the first exterior heat exchanger 121. The sixth on-off valve 34 controls the flow of refrigerant between the interior condenser 131 and the second heat exchange channel 712.

[0123] In some embodiments, as Figure 13 As shown, the thermal management system 100 has a battery pack cooling mode; when the thermal management system 100 is in the battery pack cooling mode, the first on-off valve 31, the fifth on-off valve 33, the first one-way valve 52, the fifth throttle valve 44, the fourth throttle valve 45, and the third on-off valve 36 are turned on, and the third throttle valve 43, the sixth on-off valve 34, the second on-off valve 32, and the second throttle valve 42 are turned off, the first external heat exchanger 121 acts as a condenser, and the battery pack heat exchanger 61 acts as an evaporator.

[0124] In the battery pack cooling mode, the compressor 11 discharges high-temperature and high-pressure gas after compression. The compressor 11 is connected to the in-vehicle condenser 131. The in-vehicle condenser 131 of high-temperature and high-pressure gas is connected to the first external heat exchanger 121 through the fifth on-off valve 33. The refrigerant exchanges heat with the environment through the first external heat exchanger 121, and the refrigerant releases heat. The outlet of the first external heat exchanger 121 is a medium-temperature and high-pressure fluid; the first external heat exchanger 121 is connected to the fifth throttle valve 44 through the first one-way valve 52. The refrigerant is throttled and cooled by the fifth throttle valve 44 and becomes low-temperature and low-pressure wet steam or supercooled liquid. The low-temperature and low-pressure wet steam or supercooled liquid flows from the outlet of the fifth throttle valve 44 to the battery pack heat exchanger 61. At this time, the battery pack heat exchanger 61 acts as an evaporator. The high-temperature fluid from the battery pack is cooled to a low-temperature fluid through the battery pack heat exchanger 61, and is then provided to the battery pack for cooling. The refrigerant at the outlet of the battery pack heat exchanger 61 is a low-temperature and low-pressure fluid. The outlet of the battery pack heat exchanger 61 is connected to the gas-liquid separator 80. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage for the refrigerant gas to ensure stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0125] In some embodiments, as Figure 10 As shown, the thermal management system 100 has an air conditioning and battery pack synchronous cooling mode. When the thermal management system 100 is in this mode, the first on-off valve 31, the fifth on-off valve 33, the first one-way valve 52, the fifth throttle valve 44, the fourth throttle valve, the third on-off valve 36, and the second throttle valve 42 are open, while the third throttle valve 43, the sixth on-off valve 34, and the second on-off valve 32 are closed. The first external heat exchanger 121 acts as a condenser, and the battery pack heat exchanger 61 and the internal evaporator 132 act as evaporators.

[0126] In the simultaneous air conditioning and battery pack cooling mode, compressor 11 compresses and discharges high-temperature, high-pressure gas, which flows to the in-vehicle condenser 131. At this point, the outlet of in-vehicle condenser 131 is still high-temperature, high-pressure gas. After passing through in-vehicle condenser 131, the fluid passes through fifth on-off valve 33 and enters first external heat exchanger 121. The refrigerant exchanges heat with the ambient air through first external heat exchanger 121, releasing heat. The outlet of first external heat exchanger 121 is medium-temperature, high-pressure fluid. After passing through the first external heat exchanger 121, the refrigerant forms two branches. Among them, in branch 1, the first external heat exchanger 121 is connected to the second throttle valve 42. The refrigerant is throttled and cooled by the second throttle valve 42 and becomes low-temperature, low-pressure wet steam or supercooled liquid. The outlet of the second throttle valve 42 is connected to the in-vehicle evaporator 132. At this time, high-temperature air passes through the in-vehicle evaporator 132. The in-vehicle evaporator 132 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle for cooling. The refrigerant at the outlet of the in-vehicle evaporator 132 is a low-temperature, low-pressure fluid.

[0127] In branch 2, the first off-board heat exchanger 121 is connected to the fifth throttle valve 44. The refrigerant flows through the first one-way valve 52 to the fifth throttle valve 44, where it is throttled and cooled, becoming low-temperature, low-pressure wet steam or supercooled liquid. The outlet of the fifth throttle valve 44 is connected to the battery pack heat exchanger 61, which functions as an evaporator. The high-temperature fluid from the batteries is cooled by the battery pack heat exchanger 61 to a low-temperature fluid, which is then supplied to the battery pack for cooling. The refrigerant at the outlet of the battery pack heat exchanger 61 is a low-temperature, low-pressure fluid. The refrigerant at the outlet of the battery pack heat exchanger 61 merges with the refrigerant at the outlet of the on-board evaporator 132 and flows to the gas-liquid separator 80. This separates the refrigerant from the refrigeration oil and serves as an intermediate storage for the refrigerant gas, ensuring stable suction to the compressor 11. Finally, the refrigerant returns to the compressor 11, completing the cycle.

[0128] In some embodiments, combined Figure 11 The refrigerator module further includes a sixth throttle valve 46. A first end of the sixth throttle valve 46 is connected to the second end of the first heat exchanger 21, and a second end of the sixth throttle valve 46 is connected to the corresponding second ends of the fourth on-off valve 35 and the third on-off valve 36. For example, the refrigerant flows through the third on-off valve 36 to the sixth throttle valve 46 and then to the first heat exchanger 21. Alternatively, the refrigerant in the first heat exchanger 21 flows through the sixth throttle valve 46 to the third on-off valve 36.

[0129] In some embodiments, as Figure 11 As shown, the thermal management system 100 has a synchronous cooling mode for the air conditioner, battery pack, and refrigerator. When the thermal management system 100 is in this synchronous cooling mode, the second heat exchanger 23 is open, the first on-off valve 31, the fifth on-off valve 33, the first one-way valve 52, the fifth throttle valve 44, the fourth throttle valve 45, the third on-off valve 36, the second throttle valve 42, the first throttle valve 41, and the sixth throttle valve 46 are open, and the third throttle valve 43, the sixth on-off valve 34, and the second on-off valve 32 are closed. The first external heat exchanger 121 acts as a condenser, and the battery pack heat exchanger 61, the internal evaporator 132, and the first heat exchanger 21 act as evaporators.

[0130] In the synchronous cooling mode of the air conditioner, battery pack and refrigerator, the compressor 11 discharges high-temperature and high-pressure gas after compression. The compressor 11 is connected to the in-vehicle condenser 131. The high-temperature and high-pressure gas flows through the in-vehicle condenser 131 to the fifth on-off valve 33 and then flows to the first external heat exchanger 121. The refrigerant exchanges heat with the environment through the first external heat exchanger 121, and the refrigerant releases heat. The outlet of the first external heat exchanger 121 is a medium-temperature and high-pressure fluid. After passing through the first external heat exchanger 121, the refrigerant forms three branches. Among them, in branch 1, the first external heat exchanger 121 is connected to the second throttle valve 42. The refrigerant is throttled and cooled by the second throttle valve 42 and becomes low-temperature, low-pressure wet steam or supercooled liquid. The second throttle valve 42 is connected to the in-vehicle evaporator 132. At this time, high-temperature air passes through the in-vehicle evaporator 132. The in-vehicle evaporator 132 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle for cooling. The refrigerant at the outlet of the in-vehicle evaporator 132 is a low-temperature, low-pressure fluid.

[0131] In branch 2, the first off-board heat exchanger 121 is connected to the fifth throttle valve 44. The refrigerant is throttled and cooled by the fifth throttle valve 44, and becomes low-temperature, low-pressure wet steam or supercooled liquid. The low-temperature, low-pressure wet steam or supercooled liquid continues to flow to the battery pack heat exchanger 61. At this time, the battery pack heat exchanger 61 acts as an evaporator. The high-temperature fluid exchanged from the battery pack is cooled to a low-temperature fluid through the battery pack heat exchanger 61, and is thus provided to the battery pack for refrigeration. The refrigerant at the outlet of the battery pack heat exchanger 61 is a low-temperature, low-pressure fluid.

[0132] In branch 3, the first off-vehicle heat exchanger 121 is connected to the first throttle valve 41. The refrigerant is throttled and cooled by the first throttle valve 41, and becomes low-temperature and low-pressure wet steam or supercooled liquid and then flows to the first heat exchanger 21. At this time, the first heat exchanger 21 acts as an evaporator, taking away the heat from the hot surface 233 of the semiconductor refrigeration plate, thereby using the refrigeration system and the semiconductor refrigeration plate to relay cooling and provide it to the vehicle refrigerator for refrigeration. The refrigerant at the outlet of the first heat exchanger 21 is a low-temperature and low-pressure fluid. The above three branches, namely the outlet of the in-vehicle evaporator 132, the outlet of the battery pack heat exchanger 61 and the outlet of the first heat exchanger 21, merge and flow to the gas-liquid separator 80. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage for the refrigerant gas to ensure stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0133] In some embodiments, as Figure 12As shown, the thermal management system 100 has a battery pack and refrigerator synchronized cooling mode. When the thermal management system 100 is in this mode, the second heat exchanger 23 is open, the first on-off valve 31, the fifth on-off valve 33, the first one-way valve 52, the sixth throttle valve 46, the fourth throttle valve 45, the first throttle valve 41, the fifth throttle valve 44, and the third on-off valve 36 are open, and the third throttle valve 43, the sixth on-off valve 34, the second throttle valve 42, and the second on-off valve 32 are closed. The first off-vehicle heat exchanger 121 acts as a condenser, and the battery pack heat exchanger 61 and the first heat exchanger 21 act as an evaporator.

[0134] In the battery pack and refrigerator synchronous cooling mode, compressor 11 compresses and discharges high-temperature, high-pressure gas. This gas passes through the outlet of the in-vehicle condenser 131, passes through the fifth on-off valve 33, and is connected to the first external heat exchanger 121. The refrigerant exchanges heat with the environment through the first external heat exchanger 121, releasing heat. The outlet of the first external heat exchanger 121 is a medium-temperature, high-pressure fluid. After passing through the first external heat exchanger 121, the refrigerant forms two branches. In branch 1, the first external heat exchanger 121 is connected to the fifth throttle valve 44. The refrigerant is throttled and cooled by the fifth throttle valve 44, becoming low-temperature, low-pressure wet vapor or a subcooled liquid. The outlet of the fifth throttle valve 44 is connected to the battery pack heat exchanger 61. At this point, the battery pack heat exchanger 61 functions as an evaporator. The high-temperature fluid exchanged from the battery pack is cooled to a low-temperature fluid through the battery pack heat exchanger 61, which is then supplied to the battery pack for cooling. The refrigerant at the outlet of the battery pack heat exchanger 61 is a low-temperature, low-pressure fluid.

[0135] In branch 2, the first off-board heat exchanger 121 is connected to the first throttle valve 41. The refrigerant is throttled and cooled by the first throttle valve 41 to become low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the first throttle valve 41 is connected to the first heat exchanger 21. At this time, the first heat exchanger 21 acts as an evaporator, taking away the heat from the hot surface 233 of the semiconductor refrigeration plate, thereby using the refrigeration system and the semiconductor refrigeration plate to relay cooling and provide it to the vehicle refrigerator for refrigeration. The refrigerant at the outlet of the first heat exchanger 21 is a low-temperature and low-pressure fluid. The outlet of the battery pack heat exchanger 61 and the outlet of the first heat exchanger 21 are merged and flow to the gas-liquid separator 80. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage for the refrigerant gas to ensure stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0136] In some embodiments, as Figure 14As shown, the thermal management system 100 has an air conditioning and battery pack synchronous heating mode. When the thermal management system 100 is in this mode, the third throttle valve 43, the sixth on-off valve 34, the fourth throttle valve 45, the fifth throttle valve 44, the second one-way valve 51, the fourth on-off valve 35, and the second on-off valve 32 are open, while the first on-off valve 31, the fifth on-off valve 33, the second throttle valve 42, the first one-way valve 52, and the third on-off valve 36 are closed. The in-vehicle condenser 131 and the battery pack heat exchanger 61 function as the condenser, and the second external heat exchanger 71 functions as the evaporator.

[0137] In the air conditioning heating and battery pack synchronous heating mode, the compressor 11 discharges high-temperature and high-pressure gas after compression, and is divided into two branches: in branch 1, the outlet of the compressor 11 is connected to the in-vehicle condenser 131, and the low-temperature air is heated to high-temperature air through the in-vehicle condenser 131 and provided to the vehicle for heating. The refrigerant is cooled to a medium-temperature and high-pressure fluid through the in-vehicle condenser 131, and the outlet of the in-vehicle condenser 131 is connected to the third throttle valve 43. The refrigerant is throttled and cooled through the third throttle valve 43 and becomes low-temperature and low-pressure wet steam or supercooled liquid. In branch 2, the refrigerant at the outlet of compressor 11 passes through fourth on-off valve 35 and fourth throttle valve 45 and enters battery pack heat exchanger 61. The low-temperature battery heat is heated by heat exchange in battery pack heat exchanger 61, and the refrigerant is cooled by battery pack heat exchanger 61 into a medium-temperature, high-pressure fluid. The outlet of battery pack heat exchanger 61 is connected to fifth throttle valve 44, where the refrigerant is throttled and cooled, becoming low-temperature, low-pressure wet steam or a subcooled liquid. The outlets of third throttle valve 43 and fifth throttle valve 44 merge and are connected to second off-vehicle heat exchanger 71 via sixth on-off valve 34. At this point, second off-vehicle heat exchanger 71 functions as an evaporator. The refrigerant is heated by ambient air or waste heat from motor cooling module 70, completing the heat absorption process from the environment. The refrigerant at the outlet of second off-vehicle heat exchanger 71 is a low-temperature, low-pressure fluid. The outlet of the second external heat exchanger 71 is connected to the gas-liquid separator 80 through the second on-off valve 32. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage of the refrigerant gas to ensure the stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0138] In addition, when the inlet temperature of the battery pack heat exchanger 61 exceeds a certain range, the local temperature of the power battery is likely to exceed its operating temperature range. Therefore, the required temperature of the in-vehicle condenser 131 needs to continue to increase (for example, the target temperature is 95°C). When the inlet temperature of the battery pack heat exchanger 61 reaches the upper limit (for example, the upper limit temperature is 65°C), the valve opening of the fourth throttle valve 45 is reduced to reduce the inlet temperature of the battery pack heat exchanger 61.

[0139] In some embodiments, as Figure 15As shown, the thermal management system 100 has a synchronous heating mode for the air conditioner, battery pack, and refrigerator. When the thermal management system 100 is in this synchronous heating mode, the second heat exchanger 23 is open, the third throttle valve 43, the fourth on-off valve 35, the sixth on-off valve 34, the fourth throttle valve 45, the fifth throttle valve 44, the sixth throttle valve 46, the first throttle valve 41, the second one-way valve 51, and the second on-off valve 32 are open, and the first on-off valve, the fifth on-off valve 33, the first one-way valve 52, the third on-off valve 36, and the second throttle valve 42 are closed. The in-vehicle condenser 131 and the battery pack heat exchanger 61 function as condensers, and the first heat exchanger 21 and the second external heat exchanger 71 function as evaporators.

[0140] In the synchronous heating mode of the air conditioner, battery pack and refrigerator, the compressor 11 compresses and discharges the high-temperature and high-pressure gas into three branches: in branch 1, the outlet of the compressor 11 is connected to the in-vehicle condenser 131, and at this time, air passes through the in-vehicle condenser 131. The low-temperature air is heated to high-temperature air through the in-vehicle condenser 131 and provided to the vehicle for heating. The refrigerant is cooled to a medium-temperature and high-pressure fluid through the in-vehicle condenser 131. The medium-temperature and high-pressure fluid enters the third throttle valve 43. The refrigerant is throttled and cooled through the third throttle valve 43 and becomes low-temperature and low-pressure wet steam or supercooled liquid.

[0141] In branch 2, the high-temperature and high-pressure gas at the outlet of the compressor 11 enters the battery pack heat exchanger 61 through the fourth on-off valve 35 and the fourth throttle valve 45. The temperature of the low-temperature battery increases after heat exchange through the battery pack heat exchanger 61, and the refrigerant is cooled into a medium-temperature and high-pressure fluid through the battery pack heat exchanger 61. The outlet of the battery pack heat exchanger 61 is connected to the fifth throttle valve 44. The refrigerant is throttled and cooled through the fifth throttle valve 44 and becomes low-temperature and low-pressure wet steam or supercooled liquid.

[0142] In branch 3, the high-temperature and high-pressure gas at the outlet of the compressor 11 enters the first heat exchanger 21 through the fourth on-off valve 35 and the sixth throttle valve 46. At this time, the first heat exchanger 21 acts as a condenser. The low-temperature fluid from the inside of the refrigerator is heated to a high-temperature fluid through the first heat exchanger 21, and then provided to the vehicle refrigerator for heating. The refrigerant at the outlet of the first heat exchanger 21 is a medium-temperature and high-pressure fluid. The outlet of the first heat exchanger 21 is connected to the first throttle valve 41. The refrigerant is throttled and cooled by the first throttle valve 41 and becomes a low-temperature and low-pressure wet steam or a supercooled liquid. At this time, the third throttle valve 43 and the first throttle valve 4 1 and the outlet of the fifth throttle valve 44 are merged and connected to the second external heat exchanger 71 through the sixth on-off valve 34. At this time, the second external heat exchanger 71 is an evaporator, and the refrigerant is heated by the ambient air or the waste heat of the motor cooling module 70 to complete the heat absorption process from the environment. The refrigerant at the outlet of the second external heat exchanger 71 is a low-temperature and low-pressure fluid. Since the outlet of the second external heat exchanger 71 is connected to the gas-liquid separator 80 through the second on-off valve 32, the gas-liquid separator 80 separates the refrigerant and the refrigeration oil and serves as an intermediate storage of the refrigerant gas, ensuring the stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0143] When the temperatures at the inlet of the battery pack heat exchanger 61 and the inlet of the first heat exchanger 21 exceed a certain range, the local temperatures inside the power battery and the refrigerator are likely to exceed their operating temperature ranges. Therefore, the required temperature of the in-vehicle condenser 131 needs to continue to increase (for example, the target temperature is 95°C). When the temperatures at the inlet of the battery pack heat exchanger 61 and the inlet of the first heat exchanger 21 reach the upper limit (for example, the upper limit temperature is 65°C), the valve openings of the fourth throttle valve 45 and the sixth throttle valve 46 are reduced, thereby reducing the temperatures at the inlet of the battery pack heat exchanger 61 and the inlet of the first heat exchanger 21.

[0144] In some embodiments, as Figure 16 As shown, the thermal management system 100 has a battery pack and refrigerator synchronized heating mode. When the thermal management system 100 is in this mode, the second heat exchanger 23 is open, the fourth on-off valve 35, the fourth throttle valve 45, the sixth throttle valve 46, the second one-way valve 51, the sixth on-off valve 34, the fifth throttle valve 44, the first throttle valve 41, and the second on-off valve 32 are open, and the third throttle valve 43, the first on-off valve 31, the fifth on-off valve 33, the second throttle valve 42, the third on-off valve 36, and the first one-way valve 52 are closed. The in-vehicle condenser 131, the battery pack heat exchanger 61, and the first heat exchanger 21 act as the condenser, and the second external heat exchanger 71 acts as the evaporator.

[0145] When the battery pack and the refrigerator are heated synchronously, the semiconductor refrigeration plate is reversed. At this time, the hot surface 233 of the refrigeration plate is connected to the natural convection heat exchanger of the refrigerator, and the semiconductor refrigeration plate heats the inside of the refrigerator.

[0146] The high-temperature and high-pressure gas discharged by the compressor 11 after compression is divided into two branches: in branch 1, the high-temperature and high-pressure gas enters the battery pack heat exchanger 61 through the fourth on-off valve 35 and the fourth throttle valve 45. The temperature of the low-temperature battery increases after heat exchange through the battery pack heat exchanger 61. The refrigerant is cooled into a medium-temperature and high-pressure fluid through the battery pack heat exchanger 61. The fluid is throttled and cooled through the fifth throttle valve 44 and becomes low-temperature and low-pressure wet steam or supercooled liquid.

[0147] In branch 2, the high-temperature and high-pressure gas enters the first heat exchanger 21 through the fourth on-off valve 35 and the sixth throttle valve 46. At this time, the first heat exchanger 21 acts as a condenser. The low-temperature fluid from the inside of the refrigerator is heated by the first heat exchanger 21 to be a high-temperature fluid, and then provided to the vehicle refrigerator for heating. The refrigerant at the outlet of the first heat exchanger 21 is a medium-temperature and high-pressure fluid. The fluid enters the first throttle valve 41. The refrigerant is throttled and cooled by the first throttle valve 41 and becomes a low-temperature and low-pressure wet steam or a supercooled liquid. The first throttle valve 41 and the fifth throttle valve 46 are connected. 4 is merged and connected to the second external heat exchanger 71 through the sixth on-off valve 34. At this time, the second external heat exchanger 71 is an evaporator, and the refrigerant is heated by the ambient air or the waste heat of the motor cooling module 70 to complete the heat absorption process from the environment. The refrigerant at the outlet of the second external heat exchanger 71 is a low-temperature and low-pressure fluid. The fluid is connected to the gas-liquid separator 80 through the second on-off valve 32. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage of the refrigerant gas to ensure the stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0148] In some embodiments, as Figure 17 As shown, the thermal management system 100 has a battery pack heating mode. When the thermal management system 100 is in the battery pack heating mode, the fourth on-off valve 35, the fourth throttle valve 45, the fifth throttle valve 44, the second one-way valve 51, the sixth on-off valve 34, and the second on-off valve 32 are open, while the first on-off valve 31, the third throttle valve 43, the fifth on-off valve 33, the third on-off valve 36, the first one-way valve 52, and the second throttle valve 42 are closed. The battery pack heat exchanger 61 acts as a condenser, and the first heat exchanger 21 acts as an evaporator.

[0149] In the battery pack heating mode, the compressor 11 discharges high-temperature and high-pressure gas after compression, and enters the battery pack heat exchanger 61 through the fourth on-off valve 35 and the fourth throttle valve 45. The temperature of the low-temperature battery increases after heat exchange through the battery pack heat exchanger 61, and the refrigerant is cooled into a medium-temperature and high-pressure fluid through the battery pack heat exchanger 61. The outlet of the battery pack heat exchanger 61 is connected to the fifth throttle valve 44. The refrigerant is throttled and cooled through the fifth throttle valve 44 to become low-temperature and low-pressure wet steam or supercooled liquid; the outlet of the fifth throttle valve 44 is connected to the second external heat exchanger 71 through the sixth on-off valve 34. At this time, the second external heat exchanger 71 is an evaporator, and the refrigerant is heated by the ambient air or the waste heat of the motor cooling module 70 to complete the heat absorption process from the environment. The refrigerant at the outlet of the second external heat exchanger 71 is a low-temperature and low-pressure fluid. The outlet of the second external heat exchanger 71 is connected to the gas-liquid separator 80 through the second on-off valve 32. The gas-liquid separator 80 separates the refrigerant and the refrigeration oil and acts as an intermediate storage of the refrigerant gas to ensure the stable suction of the compressor 11. Finally, the refrigerant returns to the compressor 11 to form a cycle.

[0150] A vehicle according to an embodiment of the second aspect of the present invention includes the thermal management system 100 according to any one of the above embodiments.

[0151] According to the vehicle of the present invention, by adjusting the refrigerant flow path on the flow path where the first heat exchanger 21, the second heat exchanger 23 and the battery pack heat exchanger 61 are located, the cooling and heating efficiency of each refrigerant in the thermal management system 100 is improved when the vehicle cools and heats the air conditioner, the interior of the vehicle and the battery pack synchronously.

[0152] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0153] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0154] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0155] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thermal management system (100), characterized in that: include: An air conditioning module (10), the air conditioning module (10) comprising an in-vehicle heat exchanger (13), an out-vehicle heat exchanger (12), and a compressor (11) connected to form a refrigerant circuit; A refrigerator module (20), the refrigerator module (20) comprising a first heat exchanger (21) and a second heat exchanger (23), the first heat exchanger (21) being connected to the refrigerant circuit, the second heat exchanger (23) being in contact with the first heat exchanger (21), and the first heat exchanger (21) and the second heat exchanger (23) exchanging heat.

2. The thermal management system (100) according to claim 1, characterized in that: The second heat exchanger (23) comprises a semiconductor cooling plate.

3. The thermal management system (100) according to claim 1, characterized in that: The refrigerator module (20) comprises an inner container (22); the second heat exchanger (23) is arranged on an outer wall of the inner container (22); and the second heat exchanger (23) exchanges heat with the inner container (22).

4. The thermal management system (100) according to claim 1, characterized in that: The second heat exchanger (23) comprises a cold surface (232) and a hot surface (233) which are opposite to each other, and heat is exchanged between the cold surface (232) and the hot surface (233).

5. The thermal management system (100) according to claim 3, characterized in that: The refrigerator module (20) comprises: a heat-insulating layer (24), the heat-insulating layer (24) defining a receiving cavity, the inner liner (22) being arranged in the receiving cavity, and the first heat exchanger (21) and the second heat exchanger (23) being arranged between the heat-insulating layer (24) and the inner liner (22).

6. The thermal management system (100) according to claim 3, characterized in that: The in-vehicle heat exchanger (13) comprises an in-vehicle evaporator (132), a first end of the in-vehicle evaporator (132) and a first end of the first heat exchanger (21) are both connected to the second end of the out-vehicle heat exchanger (12), a second end of the in-vehicle evaporator (132) and a second end of the first heat exchanger (21) are both connected to an inlet of the compressor (11), and the out-vehicle heat exchanger (12) is in communication with at least one of the in-vehicle evaporator (132) and the first heat exchanger (21).

7. The thermal management system (100) according to claim 6, characterized in that: The in-vehicle heat exchanger (13) comprises an in-vehicle condenser (131), wherein a first end of the in-vehicle condenser (131) is connected to an outlet of the compressor (11), and a second end of the in-vehicle condenser (131) is connected to a first end of the out-vehicle heat exchanger (12).

8. The thermal management system (100) according to claim 7, characterized in that: The thermal management system (100) comprises: A first on-off valve (31), the first on-off valve (31) being connected between the second end of the in-vehicle condenser (131) and the first end of the out-vehicle heat exchanger (12).

9. The thermal management system (100) according to claim 8, characterized in that: Also includes: a first throttle valve (41), the first throttle valve (41) being connected between the second end of the off-board heat exchanger (12) and the first end of the first heat exchanger (21); A second throttle valve (42), the second throttle valve (42) being connected between the second end of the external heat exchanger (12) and the first end of the internal evaporator (132).

10. The thermal management system (100) according to claim 9, characterized in that: The thermal management system (100) has at least one of an air conditioning refrigeration mode, an air conditioning and refrigerator synchronous refrigeration mode, and a refrigerator refrigeration mode; When the thermal management system (100) is in the air conditioning cooling mode, the first on-off valve (31) and the second throttle valve (42) are turned on, the first throttle valve (41) is turned off, the external heat exchanger (12) acts as a condenser, and the internal evaporator (132) acts as an evaporator; When the thermal management system (100) is in the air conditioner and refrigerator synchronous cooling mode, the first on-off valve (31), the first throttle valve (41), and the second throttle valve (42) are turned on, the exterior heat exchanger (12) acts as a condenser, and the interior evaporator (132) and the first heat exchanger (21) act as evaporators; When the thermal management system (100) is in the refrigerator refrigeration mode, the first on-off valve (31) and the first throttle valve (41) are turned on, the second throttle valve (42) is turned off, the off-vehicle heat exchanger (12) acts as a condenser, and the first heat exchanger (21) acts as an evaporator.

11. The thermal management system (100) according to claim 9, characterized in that: Also includes: a second on-off valve (32), the second on-off valve (32) being connected between the second end of the off-vehicle heat exchanger (12) and the inlet of the compressor (11); A third throttle valve (43), the third throttle valve (43) being connected between the second end of the in-vehicle condenser (131) and the first end of the out-vehicle heat exchanger (12), the third throttle valve (43) being connected in parallel with the first on-off valve (31).

12. The thermal management system (100) according to claim 11, characterized in that The thermal management system (100) has at least one of an air conditioning heating mode, an air conditioning and refrigerator synchronous heating mode, and a refrigerator heating mode; When the thermal management system (100) is in the air conditioning heating mode, the third throttle valve (43) and the second on-off valve (32) are turned on, the first throttle valve (41), the second throttle valve (42) and the first on-off valve (31) are turned off, the in-vehicle condenser (131) acts as a condenser, and the out-of-vehicle heat exchanger (12) acts as an evaporator; When the thermal management system (100) is in the synchronous heating mode of the air conditioner and refrigerator, the third throttle valve (43) and the second on-off valve (32) are turned on, the first throttle valve (41), the second throttle valve (42) and the first on-off valve (31) are turned off, the in-vehicle condenser (131) acts as a condenser, the out-vehicle heat exchanger (12) acts as an evaporator, the second heat exchanger (23) is turned on, and the hot surface (233) of the second heat exchanger (23) is in contact with the inner tank (22); When the thermal management system (100) is in the refrigerator heating mode, the first on-off valve (31), the second on-off valve (32), the first throttle valve (41), the second throttle valve (42), and the third throttle valve (43) are closed, the second heat exchanger (23) is opened, and the hot surface (233) of the second heat exchanger (23) is in contact with the inner tank (22).

13. The thermal management system (100) according to claim 11, characterized in that: The thermal management system (100) has at least one of an air conditioning dehumidification mode and an air conditioning defogging mode; When the thermal management system (100) is in the air conditioning dehumidification mode, the first on-off valve (31) and the second throttle valve (42) are turned on, the second on-off valve (32), the first throttle valve (41), and the third throttle valve (43) are turned off, the external heat exchanger (12) acts as a condenser, and the internal evaporator (132) acts as an evaporator; When the thermal management system (100) is in the air conditioning defog mode, the third throttle valve (43) and the second on-off valve (32) are turned on, the first on-off valve (31), the first throttle valve (41), and the second throttle valve (42) are turned off, the in-vehicle condenser (131) acts as a condenser, and the out-of-vehicle heat exchanger (12) acts as an evaporator.

14. The thermal management system (100) according to claim 11, characterized in that The thermal management system (100) comprises: A battery heat exchange module (60), wherein a first end of the battery heat exchange module (60) is connected to the second end of the off-vehicle heat exchanger (12), and a second end of the battery heat exchange module (60) is respectively connected to an outlet of the compressor (11) and an inlet of the compressor (11).

15. The thermal management system (100) according to claim 14, characterized in that: The battery heat exchange module (60) comprises: A battery pack heat exchanger (61), wherein a first end of the battery pack heat exchanger (61) is connected to two ends of the off-vehicle heat exchanger (12); a third on-off valve (36), the third on-off valve (36) being connected between the second end of the battery pack heat exchanger (61) and the inlet of the compressor (11) to control the on-off between the battery pack heat exchanger (61) and the inlet of the compressor (11); A fourth on-off valve (35), the fourth on-off valve (35) being connected between the second end of the battery pack heat exchanger (61) and the outlet of the compressor (11) to control the on-off between the battery pack heat exchanger (61) and the outlet of the compressor (11).

16. The thermal management system (100) according to claim 15, characterized in that The battery heat exchange module (60) comprises: a fourth throttle valve (45), wherein a first end of the fourth throttle valve (45) is connected to the second end of the battery pack heat exchanger (61), and a second end of the fourth throttle valve (45) is connected to the third on-off valve (36) and the fourth on-off valve (35); A fifth throttle valve (44), wherein a first end of the fifth throttle valve (44) is connected to two ends of the off-vehicle heat exchanger (12), and a second end of the fifth throttle valve (44) is connected to the first end of the battery pack heat exchanger (61).

17. The thermal management system (100) according to claim 16, characterized in that: The off-board heat exchanger (12) comprises: A first off-vehicle heat exchanger (121), wherein a first end of the first off-vehicle heat exchanger (121) is connected to the second end of the on-vehicle condenser (131), and a second end of the first off-vehicle heat exchanger (121) is respectively connected to the first end of the on-vehicle evaporator (132), the first end of the first heat exchanger (21), and the first end of the battery pack heat exchanger (61).

18. The thermal management system (100) according to claim 17, characterized in that The battery heat exchange module (60) further includes: A first one-way valve (52), wherein a first end of the first one-way valve (52) is connected between one end of the first off-vehicle heat exchanger (121) connected to the on-vehicle evaporator (132), and a second end of the first one-way valve (52) is connected to the first end of the first throttle valve (41) and the first end of the fifth throttle valve (44). The first one-way valve (52) allows refrigerant to flow from the first off-vehicle heat exchanger (121) to at least one of the battery pack heat exchanger (61) and the first heat exchanger (21).

19. The thermal management system (100) according to claim 18, characterized in that The thermal management system further comprises a motor cooling module (70), wherein the motor cooling module (70) comprises: Motor cooling channel (72); a second off-board heat exchanger (71), the second off-board heat exchanger (71) being connected in parallel with the first off-board heat exchanger (121), the second off-board heat exchanger (71) having a first heat exchange channel (711) and a second heat exchange channel (712), the two ends of the first heat exchange channel (711) being respectively connected to the two ends of the motor cooling channel (72), the first end of the second heat exchange channel (712) being respectively connected to the first end of the fifth throttle valve (44), the second end of the first on-off valve (31), and the first end of the first throttle valve (41), and the second end of the second heat exchange channel (712) being connected to the inlet of the compressor (11).

20. The thermal management system (100) according to claim 19, characterized in that The motor cooling module (70) further comprises: a motor heat exchanger (74), wherein a first end of the motor heat exchanger (74) is connected to the motor cooling channel (72), and a second end of the motor heat exchanger (74) is connected to the first heat exchange channel (711).

21. The thermal management system (100) according to claim 20, characterized in that The battery heat exchange module (60) further includes: a second one-way valve (51), wherein a first end of the second one-way valve (51) is connected to the first end of the first throttle valve (41) and the first end of the fifth throttle valve (44), and a second end of the second one-way valve (51) is connected to a first end of the second heat exchange channel (712), and the second one-way valve (51) allows the refrigerant to flow to the second off-vehicle heat exchanger (71) through at least one of the battery pack heat exchanger (61) and the first heat exchanger (21).

22. The thermal management system (100) according to claim 21, characterized in that The air conditioning module also includes: a fifth on-off valve (33), wherein a first end of the fifth on-off valve (33) is connected to the second end of the in-vehicle condenser (131), and a second end of the fifth on-off valve (33) is connected to the first end of the first out-of-vehicle heat exchanger (121); A sixth on-off valve (34), wherein a first end of the sixth on-off valve (34) is connected to an end of the in-vehicle condenser (131) connected to the fifth on-off valve (33), and a second end of the sixth on-off valve (34) is connected to the first end of the second heat exchange channel (712).

23. The thermal management system (100) according to claim 22, characterized in that The thermal management system (100) has a battery pack cooling mode; When the thermal management system (100) is in a battery pack cooling mode, the first on-off valve (31), the fifth on-off valve (33), the first non-return valve (52), the fifth throttle valve (44), the fourth throttle valve (45), and the third on-off valve (36) are turned on, and the third throttle valve (43), the sixth on-off valve (34), the second on-off valve (32), and the second throttle valve (42) are turned off; the first off-vehicle heat exchanger (121) acts as a condenser, and the battery pack heat exchanger (61) acts as an evaporator.

24. The thermal management system (100) according to claim 22, characterized in that The thermal management system (100) has an air conditioning and battery pack synchronous cooling mode; When the thermal management system (100) is in the air conditioning and battery pack synchronous cooling mode, the first on-off valve (31), the fifth on-off valve (33), the first non-return valve (52), the fifth throttle valve (44), the fourth throttle valve (45), the third on-off valve (36), and the second throttle valve (42) are turned on, the third throttle valve (43), the sixth on-off valve (34), and the second on-off valve (32) are turned off, the first off-vehicle heat exchanger (121) acts as a condenser, and the battery pack heat exchanger (61) and the in-vehicle evaporator (132) act as evaporators.

25. The thermal management system (100) according to claim 22, characterized in that The refrigerator module also includes: A sixth throttle valve (46), wherein a first end of the sixth throttle valve (46) is connected to the second end of the first heat exchanger (21), and a second end of the sixth throttle valve (46) is connected to the first end of the third on-off valve (36) and the first end of the fourth on-off valve (35).

26. The thermal management system (100) according to claim 25, characterized in that The thermal management system (100) has a synchronous cooling mode for air conditioning, battery pack and refrigerator; When the thermal management system (100) is in a synchronous cooling mode of the air conditioner, battery pack and refrigerator, the second heat exchanger (23) is turned on, the first on-off valve (31), the fifth on-off valve (33), the first one-way valve (52), the fifth throttle valve (44), the fourth throttle valve (45), the third on-off valve (36), the second throttle valve (42), the first throttle valve (41) and the sixth throttle valve (46) are turned on, the third throttle valve (43), the sixth on-off valve (34) and the second on-off valve (32) are turned off, the first off-vehicle heat exchanger (121) acts as a condenser, the battery pack heat exchanger (61), the on-vehicle evaporator (132) and the first heat exchanger (21) act as evaporators.

27. The thermal management system (100) according to claim 25, characterized in that The thermal management system (100) has a battery pack and refrigerator synchronous cooling mode; When the thermal management system (100) is in a battery pack and refrigerator synchronous cooling mode, the second heat exchanger (23) is turned on, the first on-off valve (31), the fifth on-off valve (33), the first one-way valve (52), the sixth throttle valve (46), the fourth throttle valve (45), the first throttle valve (41), the fifth throttle valve (44), and the third on-off valve (36) are turned on, the third throttle valve (43), the sixth on-off valve (34), the second throttle valve (42), and the second on-off valve (32) are turned off, the first off-vehicle heat exchanger (121) acts as a condenser, and the battery pack heat exchanger (61) and the first heat exchanger (21) act as an evaporator.

28. The thermal management system according to claim 25, characterized in that The thermal management system has a battery pack heating mode; When the thermal management system is in the battery pack heating mode, the fourth on-off valve (35), the fourth throttle valve (45), the fifth throttle valve (44), the second one-way valve (51), the sixth on-off valve (34), and the second on-off valve (32) are turned on, and the first on-off valve (31), the third throttle valve (43), the fifth on-off valve (33), the third on-off valve (36), the first one-way valve (52), and the second throttle valve (42) are turned off, and the battery pack heat exchanger (61) acts as a condenser, and the first heat exchanger (21) acts as an evaporator.

29. The thermal management system (100) according to claim 25, characterized in that The thermal management system (100) has an air conditioning and battery pack synchronous heating mode; When the thermal management system (100) is in the air conditioning and battery pack synchronous heating mode, the third throttle valve (43), the sixth on-off valve (34), the fourth throttle valve (45), the fifth throttle valve (44), the second one-way valve (51), the fourth on-off valve (35), and the second on-off valve (32) are turned on, and the first on-off valve (31), the fifth on-off valve (33), the second throttle valve (42), the first one-way valve (52), and the third on-off valve (36) are turned off; the in-vehicle condenser (131) and the battery pack heat exchanger (61) act as condensers, and the second out-of-vehicle heat exchanger (71) acts as an evaporator.

30. The thermal management system (100) according to claim 25, characterized in that The thermal management system (100) has a synchronous heating mode for the air conditioner, battery pack and refrigerator; When the thermal management system (100) is in a synchronous heating mode of the air conditioner, the battery pack and the refrigerator, the second heat exchanger (23) is turned on, the third throttle valve (43), the fourth on-off valve (35), the sixth on-off valve (34), the fourth throttle valve (45), the fifth throttle valve (44), the sixth throttle valve (46), the first throttle valve (41), the second one-way valve (51) and the second on-off valve (32) are turned on, the first on-off valve (31), the fifth on-off valve (33), the first one-way valve (52), the third on-off valve (36) and the second throttle valve (42) are turned off, the in-vehicle condenser (131) and the battery pack heat exchanger (61) act as condensers, and the first heat exchanger (21) and the second out-vehicle heat exchanger (71) act as evaporators.

31. The thermal management system (100) according to claim 25, characterized in that The thermal management system (100) has a synchronous heating mode for the battery pack and the refrigerator; When the thermal management system (100) is in a synchronous heating mode of the battery pack and the refrigerator, the second heat exchanger (23) is turned on, the fourth on-off valve (35), the fourth throttle valve (45), the sixth throttle valve (46), the second one-way valve (51), the sixth on-off valve (34), the fifth throttle valve (44), the first throttle valve (41), and the second on-off valve (32) are turned on, the third throttle valve (43), the first on-off valve (31), the fifth on-off valve (33), the second throttle valve (42), the third on-off valve (36), and the first one-way valve (52) are turned off, the in-vehicle condenser (131), the battery pack heat exchanger (61), and the first heat exchanger (21) act as a condenser, and the second out-of-vehicle heat exchanger (71) acts as an evaporator.

32. A vehicle, characterized in that: Comprising a thermal management system (100) according to any one of claims 1-31.

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