Vehicle-mounted refrigerator, thermal management system and vehicle

Abstract

The invention discloses a vehicle-mounted refrigerator, a heat management system and a vehicle. The vehicle-mounted refrigerator comprises an inner refrigerator body, an outer refrigerator body, a heat exchange module and an auxiliary heat exchange module. The outer box body is arranged on the periphery of the inner box body, and the outer box body and the inner box body jointly define a containing cavity. The heat exchange module is arranged in the containing cavity. The auxiliary heat exchange module is located in the containing cavity and arranged at the heat exchange module, and the auxiliary heat exchange module is used for conducting heat exchange with the heat exchange module. According to the vehicle-mounted refrigerator, heat exchange is conducted through the auxiliary heat exchange module and the heat exchange module, and the heating and refrigerating requirements of the vehicle-mounted refrigerator are met, so that the functionality of the vehicle-mounted refrigerator is enriched, the use comfort of a user is improved, and the market competitiveness of the vehicle-mounted refrigerator is improved; and meanwhile, through the auxiliary heat exchange module, the heating and refrigerating efficiency of the heat exchange module on the vehicle-mounted refrigerator can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a vehicle-mounted refrigerator, a thermal management system and a vehicle thereof. Background Art

[0002] A car refrigerator is a constant temperature storage cabinet carried in a car. In the related art, a car refrigerator often uses an independent micro compression cycle refrigeration or a semiconductor refrigeration plate refrigeration. However, the refrigeration power of the independent micro compressor or semiconductor refrigeration plate is small and the refrigeration speed is slow. In addition, the car refrigerator only has the function of refrigeration and freezing, and cannot heat food in cold weather. Therefore, the functionality of the car refrigerator is poor. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a vehicle refrigerator that meets the heating and cooling requirements of the vehicle refrigerator, thereby enriching the functionality of the vehicle refrigerator, and at the same time, through the auxiliary heat exchange module, it is beneficial to improve the heating and cooling efficiency of the heat exchange module for the vehicle refrigerator.

[0004] Another object of the present invention is to provide a thermal management system using the above-mentioned vehicle refrigerator.

[0005] Another object of the present invention is to provide a vehicle using the above-mentioned vehicle refrigerator or the above-mentioned thermal management system.

[0006] According to the first aspect of the present invention, the vehicle refrigerator includes: an inner box and an outer box, the outer box is arranged on the outer periphery of the inner box, and the outer box and the inner box jointly define a accommodating cavity; a heat exchange module, the heat exchange module is arranged in the accommodating cavity; an auxiliary heat exchange module, the auxiliary heat exchange module is located in the accommodating cavity, and the auxiliary heat exchange module is arranged at the heat exchange module, and the auxiliary heat exchange module is used to exchange heat with the heat exchange module.

[0007] The vehicle refrigerator according to the embodiment of the present invention satisfies the heating and cooling needs of the vehicle refrigerator by performing heat exchange with the heat exchange module through the auxiliary heat exchange module, thereby enriching the functionality of the vehicle refrigerator, improving the user comfort, and further increasing the market competitiveness of the vehicle refrigerator. At the same time, the auxiliary heat exchange module is helpful to improve the heating and cooling efficiency of the heat exchange module for the vehicle refrigerator.

[0008] According to some embodiments of the present invention, the auxiliary heat exchange module is disposed on the outer box.

[0009] According to some embodiments of the present invention, the heat exchange module is disposed on a side of the accommodating cavity adjacent to the inner box, and the auxiliary heat exchange module is disposed on a side of the heat exchange module away from the center of the inner box.

[0010] According to some embodiments of the present invention, the heat exchange module includes a first heat exchange end and a second heat exchange end that are relatively arranged, the first heat exchange end is adjacent to the inner box, the second heat exchange end is located between the first heat exchange end and the auxiliary heat exchange module, the auxiliary heat exchange module is used to perform heat exchange with the second heat exchange end, when one of the first heat exchange end and the second heat exchange end is a cold end, the other of the first heat exchange end and the second heat exchange end is a hot end, so that the vehicle refrigerator can switch between a refrigerator heating mode and a refrigerator cooling mode.

[0011] According to some embodiments of the present invention, the heat exchange module includes a semiconductor refrigeration sheet or a refrigerator heat exchanger.

[0012] According to some embodiments of the present invention, the auxiliary heat exchange module includes a liquid-cooled heat sink.

[0013] A thermal management system according to an embodiment of a second aspect of the present invention comprises: a motor heat exchange circuit; and a vehicle refrigerator, wherein the vehicle refrigerator is the vehicle refrigerator according to the embodiment of the first aspect of the present invention, and an auxiliary heat exchange module of the vehicle refrigerator is connected to the motor heat exchange circuit.

[0014] According to some embodiments of the present invention, the thermal management system further comprises: a first motor heat exchanger and a heat exchange device, wherein the first motor heat exchanger and the heat exchange device are connected to form the motor heat exchange loop.

[0015] According to some embodiments of the present invention, the heat exchange device includes a plate heat exchanger and a second motor heat exchanger, and at least one of the plate heat exchanger and the second motor heat exchanger is connected to the first motor heat exchanger to form the motor heat exchange loop.

[0016] According to some embodiments of the present invention, a four-way valve is provided on the motor heat exchange circuit, and the four-way valve includes a first interface, a second interface, a third interface and a fourth interface, the first interface is connected to the first end of the first heat exchange channel of the plate heat exchanger, the second interface and the second end of the first heat exchange channel are both connected to one end of the first heat exchanger of the motor, the third interface is connected to one end of the second heat exchanger of the motor, the other end of the second heat exchanger of the motor is connected to one end of the auxiliary heat exchange module, the other end of the auxiliary heat exchange module is connected to the other end of the first heat exchanger of the motor, and the fourth interface is connected to the other end of the second heat exchanger of the motor.

[0017] According to some embodiments of the present invention, the four-way valve includes a first working mode, a second working mode, a third working mode and a fourth working mode. When the four-way valve is in the first working mode, the second interface and the third interface are connected, and the second heat exchanger of the motor is connected to the first heat exchanger of the motor to form the motor heat exchange circuit; when the four-way valve is in the second working mode, the first interface and the third interface are connected, and the second heat exchanger of the motor, the plate heat exchanger and the first heat exchanger of the motor are connected to form the motor heat exchange circuit; when the four-way valve is in the third working mode, the first interface and the fourth interface are connected, and the plate heat exchanger and the first heat exchanger of the motor are connected to form the motor heat exchange circuit; when the four-way valve is in the fourth working mode, the first interface is connected to the third interface and the fourth interface, and the second heat exchanger of the motor, the plate heat exchanger and the first heat exchanger of the motor are connected to form the motor heat exchange circuit.

[0018] According to some embodiments of the present invention, the thermal management system further includes an air-conditioning module, which includes a compressor, a first in-vehicle heat exchanger and an out-vehicle heat exchanger connected to form a first refrigerant circuit, the plate heat exchanger is connected in parallel with the out-vehicle heat exchanger, the third end of the second heat exchange channel of the plate heat exchanger is connected to the first end of the first in-vehicle heat exchanger, and the fourth end of the second heat exchange channel is connected to the inlet of the compressor; a first on-off valve, the first on-off valve is connected between the first end of the out-vehicle heat exchanger and the first in-vehicle heat exchanger, the first end of the out-vehicle heat exchanger is connected to the third end of the second heat exchange channel; a first throttle valve, the first throttle valve is connected in parallel with the first on-off valve; a fourth on-off valve, the fourth on-off valve is connected between the second end of the out-vehicle heat exchanger and the inlet of the compressor, and the second end of the out-vehicle heat exchanger is connected to the fourth end of the second heat exchange channel.

[0019] According to some embodiments of the present invention, the air-conditioning module also includes a second in-vehicle heat exchanger, one end of the second in-vehicle heat exchanger is connected to the second end of the outdoor heat exchanger and the fourth end of the second heat exchange channel, and the other end of the second in-vehicle heat exchanger is connected to the inlet of the compressor; a second on-off valve, the second on-off valve connects the first end of the first in-vehicle heat exchanger and the outdoor heat exchanger; a second throttle valve, one end of the second throttle valve is connected to the outdoor heat exchanger and the fourth end of the second heat exchange channel, and the other end of the second throttle valve is connected to the one end of the second in-vehicle heat exchanger.

[0020] According to some embodiments of the present invention, the outlet of the compressor is connected to one end of the first in-vehicle heat exchanger, the other end of the first in-vehicle heat exchanger is selectively connected to at least one of the external heat exchanger and the plate heat exchanger, the external heat exchanger and the at least one of the plate heat exchanger are selectively connected to one end of the second in-vehicle heat exchanger and at least one of the inlet of the compressor, and the other end of the second in-vehicle heat exchanger is connected to the inlet of the compressor.

[0021] According to some embodiments of the present invention, the thermal management system further includes a battery pack heat exchanger, which is connected in the first refrigerant circuit to be suitable for heat exchange with the battery pack, the battery pack heat exchanger is connected in parallel with the first in-vehicle heat exchanger, and the battery pack heat exchanger can be selectively connected to one of the inlet and the outlet of the compressor; a fourth throttle valve, which is connected between one end of the battery pack heat exchanger and the inlet and the outlet of the compressor.

[0022] According to some embodiments of the present invention, the thermal management system further includes a fifth on-off valve, which is connected between the outlet of the compressor and the fourth throttle valve; and a sixth on-off valve, which is connected between the inlet of the compressor and the fourth throttle valve.

[0023] According to some embodiments of the present invention, the thermal management system further includes a third on-off valve, one end of the third on-off valve is connected to the third end of the second heat exchange channel, and the other end of the third on-off valve is connected to the battery pack heat exchanger, the first end of the first in-vehicle heat exchanger and the second end of the external heat exchanger.

[0024] According to some embodiments of the present invention, the thermal management system further includes a third throttle valve, which is connected between the third end of the second heat exchange channel and the battery pack heat exchanger; a first one-way valve, which is connected between the third on-off valve and the third throttle valve, and the first one-way valve only allows the refrigerant flowing out of the battery pack heat exchanger to pass through; and a second one-way valve, which is connected between an end of the external heat exchanger away from the second on-off valve and the third throttle valve, and the second one-way valve only allows the refrigerant to flow to the battery pack heat exchanger.

[0025] According to some embodiments of the present invention, the vehicle refrigerator includes a semiconductor refrigeration sheet, the semiconductor refrigeration sheet exchanges heat with the auxiliary heat exchange module, and the semiconductor refrigeration sheet is powered on to achieve cooling or heating of the vehicle refrigerator.

[0026] According to some embodiments of the present invention, the vehicle refrigerator includes: a refrigerator heat exchange system, the refrigerator heat exchange system includes a refrigerator compressor, a first refrigerator heat exchanger and the second refrigerator heat exchanger connected to form a second refrigerant circuit; the second refrigerator heat exchanger is suitable for exchanging heat with the auxiliary heat exchange module.

[0027] According to some embodiments of the present invention, the thermal management system further includes a refrigerator throttling device, one end of which is connected to the second refrigerator heat exchanger, and one end of which is connected to the refrigerator compressor.

[0028] The vehicle according to the third embodiment of the present invention is characterized by comprising the vehicle refrigerator according to the first embodiment of the present invention; or the thermal management system according to the second embodiment of the present invention.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 is a schematic diagram of a vehicle refrigerator according to an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of a heat exchange module of a vehicle refrigerator according to an embodiment of the present invention;

[0033] Figure 3 is a schematic diagram of a motor heat exchange circuit and a vehicle refrigerator of a thermal management system according to an embodiment of the present invention, wherein the four-way valve is in the first working mode;

[0034] Figure 4 is a schematic diagram of a motor heat exchange circuit and a vehicle refrigerator of a thermal management system according to an embodiment of the present invention, wherein the four-way valve is in the second working mode;

[0035] Figure 5 is a schematic diagram of a motor heat exchange circuit and a vehicle refrigerator of a thermal management system according to an embodiment of the present invention, wherein the four-way valve is in the third working mode;

[0036] Figure 6 is a schematic diagram of a motor heat exchange circuit and a vehicle refrigerator of a thermal management system according to an embodiment of the present invention, wherein the four-way valve is in the fourth working mode;

[0037] Figure 7 is a schematic diagram of a thermal management system according to an embodiment of the present invention;

[0038] Figure 8 is a schematic diagram of a thermal management system according to a first embodiment of the present invention, wherein the air conditioning module is in cooling mode (compounding an additional motor second heat exchanger and a refrigerator cooling mode);

[0039] Fig. 9 is a schematic diagram of a thermal management system according to a first embodiment of the present invention, wherein the air conditioning module is in a heating mode (compounded with an additional refrigerator heating mode);

[0040] Fig.10 is a schematic diagram of a thermal management system according to a first embodiment of the present invention, wherein the air conditioning module is in a heating mode (compounded with another refrigerator heating mode);

[0041] Fig.11 is a schematic diagram of a thermal management system according to a first embodiment of the present invention, wherein the air conditioning module is in a heating mode (compounded with an additional refrigerator heating mode);

[0042] Fig.12 is a schematic diagram of a thermal management system according to a first embodiment of the present invention, wherein the air conditioning module is in a dehumidification mode;

[0043] Fig.13 is a schematic diagram of a thermal management system according to a first embodiment of the present invention, wherein the air conditioning module is in a demisting mode;

[0044] Fig.14 is a schematic diagram of a thermal management system according to a second embodiment of the present invention;

[0045] Fig.15 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in cooling mode (compounding the heat dissipation of the motor heat exchange circuit and the refrigerator cooling mode);

[0046] Fig.16 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in cooling mode (the synchronous battery pack heat exchanger is in battery pack cooling mode);

[0047] Fig.17 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein a battery pack heat exchanger is in a battery pack cooling mode;

[0048] Fig.18 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in a heating mode (compounded with an additional refrigerator heating mode);

[0049] Fig.19 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in a heating mode (compounded with another refrigerator heating mode);

[0050] Fig. 20 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in a heating mode (compounded with an additional refrigerator heating mode);

[0051] Fig.21 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in a heating mode (a battery pack heat exchanger is added in a battery pack heating mode);

[0052] Fig. 22 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein a battery pack heat exchanger is in a battery pack heating mode;

[0053] Fig.23 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in a dehumidification mode;

[0054] Fig.24 is a schematic diagram of a thermal management system according to a second embodiment of the present invention, wherein the air conditioning module is in a demisting mode;

[0055] Fig.25 is a schematic diagram of a thermal management system according to a third embodiment of the present invention;

[0056] Fig.26 is a schematic diagram of a thermal management system according to a third embodiment of the present invention, wherein the air conditioning module is in cooling mode (compound refrigerator cooling mode).

[0057] Reference numerals:

[0058] 100: Car refrigerator;

[0059] 1: insulation layer; 2: heat exchange module; 22: first heat exchange end; 23: second heat exchange end; 3: auxiliary heat exchange module; 4: refrigerator heat exchange system; 41: refrigerator compressor; 42: first refrigerator heat exchanger; 43: refrigerator throttling device; 44: second refrigerator heat exchanger;

[0060] 200: Thermal management system;

[0061] 10: Motor heat exchange circuit; 101: Motor first heat exchanger; 102: Plate heat exchanger; 103: Motor second heat exchanger; 104: Four-way valve; 1041: First interface; 1042: Second interface; 1043: Third interface; 1044: Fourth interface; 20: Air conditioning module; 201: Compressor; 202: First in-vehicle heat exchanger; 203: External heat exchanger; 204: Second in-vehicle heat exchanger; 30: First on-off valve; 40: Second on-off valve; 50: Third on-off valve; 60: Fourth on-off valve; 70: First throttle valve; 80: Second throttle valve; 90: Battery pack heat exchanger; 210: Third throttle valve; 220: Fourth throttle valve; 230: Fifth on-off valve; 240: Sixth on-off valve; 250: First check valve; 260: Second check valve. DETAILED DESCRIPTION

[0062] Reference below Figure 1-Figure 26 A vehicle refrigerator 100 according to an embodiment of the first aspect of the present invention will be described.

[0063] like Figure 1-Figure 26 As shown, the vehicle refrigerator 100 according to the first embodiment of the present invention includes an inner box body 1, an outer box body 1, a heat exchange module 2 and an auxiliary heat exchange module 3.

[0064] Specifically, the outer box is arranged on the outer periphery of the inner box, and the outer box and the inner box together define a receiving cavity. The heat exchange module 2 is arranged in the receiving cavity. The auxiliary heat exchange module 3 is located in the receiving cavity, and the auxiliary heat exchange module 3 is arranged at the heat exchange module 2, and the auxiliary heat exchange module 3 is used to perform heat exchange with the heat exchange module 2.

[0065] For example, in Figure 1-Figure 6 In the example, the accommodating cavity defined by the inner box and the outer box together provides installation space for the heat exchange module 2 and the auxiliary heat exchange module 3, so as to improve the integration of the vehicle refrigerator 100, increase the structural integrity of the vehicle refrigerator 100, and at the same time help to improve the structural strength of the vehicle refrigerator 100, thereby extending the service life of the vehicle refrigerator 100. A heat preservation layer 1 is also provided in the accommodating cavity, and the heat preservation layer 1 is staggered with the heat exchange module 2 and the auxiliary heat exchange module 3 to avoid interference between the heat preservation layer 1 and the heat exchange module 2 and the auxiliary heat exchange module 3, and at the same time increase the heat preservation performance of the vehicle refrigerator 100.

[0066] The auxiliary heat exchange module 3 is adjacent to the heat exchange module 2, so that the auxiliary heat exchange module 3 and the heat exchange module 2 can exchange heat, so that the temperature in the inner box can be reduced or increased through the heat exchange between the heat exchange module 2 and the inner box, even if the vehicle refrigerator 100 is in the refrigerator cooling mode or the refrigerator heating mode. Therefore, it is helpful to avoid the problems of insufficient heating or cooling capacity and low efficiency caused by poor heating or cooling of the heat exchange module 2, thereby improving the use stability of the vehicle refrigerator 100. In addition, the auxiliary heat exchange module 3 and the heat exchange module 2 exchange heat, which is conducive to realizing the gradual temperature change of the vehicle refrigerator 100, thereby improving the operation stability of the vehicle refrigerator 100.

[0067] In actual use, when the heat of the auxiliary heat exchange module 3 is higher than that of the heat exchange module 2, the auxiliary heat exchange module 3 exchanges heat with the heat exchange module 2 to meet the heating demand of the vehicle refrigerator 100; when the heat of the auxiliary heat exchange module 3 is lower than that of the heat exchange module 2, the heat exchange module 2 exchanges heat with the auxiliary heat exchange module 3 to meet the cooling demand of the vehicle refrigerator 100. In other words, the vehicle refrigerator 100 meets the heating and cooling demands of the vehicle refrigerator 100 through the heat exchange between the auxiliary heat exchange module 3 and the heat exchange module 2, thereby enriching the functionality of the vehicle refrigerator 100, improving the user's comfort, and further increasing the market competitiveness of the vehicle refrigerator 100.

[0068] The vehicle refrigerator 100 according to the embodiment of the present invention satisfies the heating and cooling requirements of the vehicle refrigerator 100 by performing heat exchange with the heat exchange module 2 through the auxiliary heat exchange module 3, thereby enriching the functionality of the vehicle refrigerator 100, improving the user's comfort, and further increasing the market competitiveness of the vehicle refrigerator 100. At the same time, the auxiliary heat exchange module 3 is helpful in improving the heating and cooling efficiency of the heat exchange module 2 for the vehicle refrigerator 100.

[0069] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The auxiliary heat exchange module 3 is arranged on the outer box. Thus, the installation stability of the auxiliary heat exchange module 3 is increased, and the distance between the auxiliary heat exchange module 3 and the inner box is increased, thereby further improving the temperature change stability of the vehicle refrigerator 100, avoiding the rapid temperature change affecting the food in the vehicle refrigerator 100, improving the usability of the vehicle refrigerator 100, and at the same time being conducive to extending the service life of the vehicle refrigerator 100.

[0070] In addition, refer to Figure 1, the heat exchange module 2 is arranged on the side of the accommodating cavity adjacent to the inner box, and the auxiliary heat exchange module 3 is arranged on the side of the heat exchange module 2 away from the center of the inner box. Such an arrangement is conducive to arranging the auxiliary heat exchange module 3 and the heat exchange module 2 in sequence in a direction away from the center of the inner box, thereby improving the efficiency of heat exchange between the auxiliary heat exchange module 3 and the heat exchange module 2, and at the same time, it is conducive to reducing the distance between the heat exchange module 2 and the inner box, improving the efficiency of heat exchange between the heat exchange module 2 and the inner box to reduce or increase the temperature in the inner box, and increasing the distance between the auxiliary heat exchange module 3 and the inner box, thereby improving the temperature change stability of the vehicle refrigerator 100.

[0071] According to some embodiments of the present invention, referring to Figure 2 , the heat exchange module 2 includes a first heat exchange end 22 and a second heat exchange end 23 which are arranged opposite to each other. The first heat exchange end 22 is adjacent to the inner box, the second heat exchange end 23 is located between the first heat exchange end 22 and the auxiliary heat exchange module 3, and the auxiliary heat exchange module 3 is used to perform heat exchange with the second heat exchange end 23. That is to say, in the direction away from the center of the inner box, the first heat exchange end 22, the second heat exchange end 23 and the auxiliary heat exchange module 3 are arranged in sequence. The auxiliary heat exchange module 3 performs heat exchange with the second heat exchange end 23, the first heat exchange end 22 performs heat exchange with the inner box, and the second heat exchange end 23 performs heat exchange with the first heat exchange end 22, thereby reducing or increasing the temperature in the inner box, that is, realizing cooling or heating of the vehicle refrigerator 100.

[0072] When one of the first heat exchange end 22 and the second heat exchange end 23 is a cold end, the other of the first heat exchange end 22 and the second heat exchange end 23 is a hot end, so that the vehicle refrigerator 100 can be switched between the refrigerator heating mode and the refrigerator cooling mode. When the first heat exchange end 22 is a cold end, the second heat exchange end 23 is a hot end, the temperature of the auxiliary heat exchange module 3 is low, the auxiliary heat exchange module 3 performs heat exchange with the second heat exchange end 23 to reduce the temperature of the second heat exchange end 23, the temperature of the first heat exchange end 22 rises after heat exchange with the inner box, the temperature of the second heat exchange end 23 is lower than the temperature of the first heat exchange end 22, and the heat exchange module 2 operates to transfer the heat of the first heat exchange end 22 to the second heat exchange end 23, so that the vehicle refrigerator 100 is in the refrigerator cooling mode. When the first heat exchange end 22 is the hot end and the second heat exchange end 23 is the cold end, the temperature of the auxiliary heat exchange module 3 is relatively high, and the auxiliary heat exchange module 3 performs heat exchange with the second heat exchange end 23 to increase the temperature of the second heat exchange end 23. The heat exchange module 2 operates to transfer the heat of the second heat exchange end 23 to the first heat exchange end 22, and the first heat exchange end 22 performs heat exchange with the inner box, so that the vehicle refrigerator 100 is in the refrigerator heating mode.

[0073] Optionally, when the vehicle refrigerator 100 is in the refrigerator refrigeration mode, the vehicle refrigerator 100 uses the air circulation module to force convection heat exchange, and the air circulation module absorbs and takes away the heat in the vehicle refrigerator 100, which is conducive to completing the entire refrigeration cycle. In this way, the vehicle refrigerator 100 can meet the functional requirements of refrigeration or freezing while avoiding the heat in the vehicle refrigerator 100 from being dissipated into the vehicle.

[0074] Optionally, the heat exchange module 2 includes a semiconductor refrigeration sheet or a refrigerator heat exchanger. Among them, the semiconductor refrigeration sheet is a refrigeration device that generates negative thermal resistance, has no moving parts, and has high reliability. The semiconductor refrigeration sheet can switch between the cold end and the hot end. When the first heat exchange end 22 is the hot end and contacts with the inner box to release heat, when there is no waste heat from the motor, etc. to be used, the auxiliary heat exchange module 3 is not turned on, and the semiconductor refrigeration sheet can use its own heat to heat the inside of the inner box. When there is waste heat from the motor, etc. to be used, the auxiliary heat exchange module 3 can also be turned on, and the second heat exchange end 23 of the semiconductor refrigeration sheet contacts the auxiliary heat exchange module 3 to absorb heat and then transfer it to the first heat exchange end 22 for heat exchange with the inner box, thereby using the heat of the semiconductor refrigeration sheet itself and the waste heat of the motor, etc. to heat the inside of the inner box, so that the vehicle refrigerator 100 is in the refrigerator heating mode. When the vehicle refrigerator 100 is in the refrigerator cooling mode, when the first heat exchange end 22 is the cold end, the semiconductor refrigeration sheet can use its own cooling to exchange heat with the inner box.

[0075] The condenser and evaporator in the refrigerator heat exchanger are used for heat exchange, so that the refrigerator heat exchanger can realize cooling and heating of the vehicle refrigerator 100. Therefore, the vehicle refrigerator 100 can meet the user's needs for freezing or refrigerating food, and can also meet the passengers' needs for heating food and beverages in cold weather, thereby improving the user experience and the market competitiveness of the vehicle refrigerator 100.

[0076] According to some embodiments of the present invention, the auxiliary heat exchange module 3 includes a liquid cooling fin. The liquid cooling fin has the advantage of stable heating and cooling. The liquid cooling fin is used as the auxiliary heat exchange module 3, so that the heat exchange between the auxiliary heat exchange module 3 and the heat exchange module 2 is relatively smooth and stable, thereby improving the temperature change stability of the vehicle refrigerator 100, extending the service life of the vehicle refrigerator 100, and improving the user experience of the vehicle refrigerator 100.

[0077] Reference Figure 3-Figure 26 The thermal management system 200 according to the second embodiment of the present invention comprises a motor heat exchange circuit 10 and a vehicle refrigerator 100. The vehicle refrigerator 100 is the vehicle refrigerator 100 according to the first embodiment of the present invention, and the auxiliary heat exchange module 3 of the vehicle refrigerator 100 is connected to the motor heat exchange circuit 10.

[0078] According to the thermal management system 200 of the embodiment of the present invention, by adopting the above-mentioned vehicle refrigerator 100, it is beneficial to the auxiliary heat exchange module 3 and the motor heat exchange circuit 10 to perform heat exchange, thereby effectively utilizing the heat in the motor heat exchange circuit 10 to reduce energy consumption and improve the heat exchange efficiency of the thermal management system 200.

[0079] Furthermore, the thermal management system 200 also includes a first heat exchanger 101 of the motor and a heat exchange device. The first heat exchanger 101 of the motor and the heat exchange device are connected to form a motor heat exchange loop 10. Thus, the auxiliary heat exchange module 3 performs heat exchange with the first heat exchanger 101 of the motor and the heat exchange device in the motor heat exchange loop 10. Among them, the first heat exchanger 101 of the motor can be integrated on the motor to achieve heating and heat dissipation of the motor and improve the stability of the motor operation. Among them, the first heat exchanger 101 of the motor can be located between the auxiliary heat exchange module 3 and the heat exchange device.

[0080] Furthermore, the heat exchange device includes a plate heat exchanger 102 and a second motor heat exchanger 103, and at least one of the plate heat exchanger 102 and the second motor heat exchanger 103 is connected to the first motor heat exchanger 101 to form a motor heat exchange loop 10. As a result, the options for heat exchange with the auxiliary heat exchange module 3 in the motor heat exchange loop 10 are enriched, thereby improving the temperature change efficiency of the auxiliary heat exchange module 3 and improving the cooling and heating efficiency of the vehicle refrigerator 100. Among them, the plate heat exchanger 102 can be arranged between the second motor heat exchanger 103 and the first motor heat exchanger 101.

[0081] Further, refer to Figure 3-Figure 26 , a four-way valve 104 is provided on the motor heat exchange circuit 10. The four-way valve 104 includes a first interface 1041, a second interface 1042, a third interface 1043 and a fourth interface 1044. The first interface 1041 is connected to the first end of the first heat exchange channel of the plate heat exchanger 102, the second interface 1042 and the second end of the first heat exchange channel are both connected to one end of the motor first heat exchanger 101, the third interface 1043 is connected to one end of the motor second heat exchanger 103, the other end of the motor second heat exchanger 103 is connected to one end of the auxiliary heat exchange module 3, the other end of the auxiliary heat exchange module 3 is connected to the other end of the motor first heat exchanger 101, and the fourth interface 1044 is connected to the other end of the motor second heat exchanger 103.

[0082] Thus, an on / off connection is achieved among the first heat exchange end 22 of the first heat exchange channel of the plate heat exchanger 102, the second heat exchange end 23 of the first heat exchange channel, the first heat exchanger 101 of the motor, one end of the second heat exchanger 103 of the motor and the other end of the second heat exchanger 103 of the motor, thereby facilitating the thermal management system 200 to complete the selection of different flow paths through the four-way valve 104, increasing the diversity of the selection modes of the thermal management system 200, and thereby improving the user experience.

[0083] Furthermore, refer to Figure 3-Figure 6 The four-way valve 104 includes a first working mode, a second working mode, a third working mode and a fourth working mode.

[0084] like Figure 3 As shown, when the four-way valve 104 is in the first working mode, the second interface 1042 and the third interface 1043 are connected, and the second heat exchanger 103 of the motor is connected to the first heat exchanger 101 of the motor to form a motor heat exchange loop 10. That is to say, the first interface 1041 and the fourth interface 1044 are closed, so that only the first heat exchanger 101 of the motor and the second heat exchanger 103 of the motor are connected to the auxiliary heat exchange module 3 in the motor heat exchange loop 10. During use, after the refrigerant dissipates heat and cools down in the second heat exchanger 103 of the motor, the low-temperature refrigerant absorbs heat and heats up from the auxiliary heat exchange module 3 and the first heat exchanger 101 of the motor to reduce the temperature of the auxiliary heat exchange module 3 and the motor, and the auxiliary heat exchange module 3 then exchanges heat with the heat exchange module 2 to reduce the temperature in the vehicle refrigerator 100, so that the vehicle refrigerator 100 is in the refrigerator cooling mode, and at the same time increases the stability of the motor. Therefore, the first working mode is suitable for a high-temperature heat dissipation loop, so that the vehicle refrigerator 100 is in the refrigerator cooling mode and the motor is in the motor heat dissipation state.

[0085] like Figure 4 As shown, when the four-way valve 104 is in the second working mode, the first interface 1041 and the third interface 1043 are connected, and the second heat exchanger 103 of the motor, the plate heat exchanger 102 and the first heat exchanger 101 of the motor are connected to form a motor heat exchange loop 10. That is to say, the second interface 1042 and the fourth interface 1044 are closed, so that the plate heat exchanger 102, the second heat exchanger 103 of the motor and the first heat exchanger 101 of the motor in the motor heat exchange loop 10 are all connected to the auxiliary heat exchange module 3. During use, after the refrigerant absorbs heat in the auxiliary heat exchange module 3 and / or the first heat exchanger 101 of the motor, part of the refrigerant enters the plate heat exchanger 102 so that part of the heat is provided to the entire thermal management system 200, and part of the refrigerant enters the second heat exchanger 103 of the motor so that part of the heat is released to the external environment through the second heat exchanger 103 of the motor. Therefore, the second working mode is suitable for the situation that the temperature of the thermal management system 200 is between -10°C and 10°C, the vehicle refrigerator 100 is in the refrigerator cooling mode and the motor is in the motor heat dissipation state.

[0086] like Figure 5As shown, when the four-way valve 104 is in the third working mode, the first interface 1041 and the fourth interface 1044 are connected, and the plate heat exchanger 102 is connected to the first heat exchanger 101 of the motor to form a motor heat exchange loop 10. That is, the second interface 1042 and the third interface 1043 are closed, so that only the plate heat exchanger 102 and the first heat exchanger 101 of the motor are connected to the auxiliary heat exchanger in the motor heat exchange loop 10. During use, the temperature of the refrigerant rises after absorbing the heat of the motor, part of the refrigerant enters the plate heat exchanger 102 to provide part of the heat to the entire thermal management system 200, and part of the refrigerant enters the auxiliary heat exchanger to assist the vehicle refrigerator 100 in heating, making full use of the heat of the motor and the plate heat exchanger 102, thereby improving the heating efficiency of the vehicle refrigerator 100. Therefore, the third working mode is suitable for the temperature of the thermal management system 200 below -10°C, the vehicle refrigerator 100 is in the refrigerator heating mode and the motor is in the motor heat dissipation state.

[0087] like Figure 6 As shown, when the four-way valve 104 is in the fourth working mode, the first interface 1041 is connected to the third interface 1043 and the fourth interface 1044, and the second heat exchanger 103 of the motor, the plate heat exchanger 102 and the first heat exchanger 101 of the motor are connected to form a motor heat exchange loop 10. That is to say, only the second interface 1042 is closed, so that the second heat exchanger 103 of the motor, the plate heat exchanger 102 and the first heat exchanger 101 of the motor in the motor heat exchange loop 10 are all connected to the auxiliary heat exchange module 3. During use, after the refrigerant absorbs heat in the auxiliary heat exchange module 3 and / or the first heat exchanger 101 of the motor, part of the refrigerant enters the plate heat exchanger 102 so that part of the heat is provided to the entire thermal management system 200, and part of the refrigerant enters the second heat exchanger 103 of the motor so that part of the heat is released to the external environment through the second heat exchanger 103 of the motor. Therefore, the fourth working mode is suitable for a high-temperature heat dissipation loop, so that the vehicle refrigerator 100 is in a refrigerator refrigeration mode and the motor is in a motor heat dissipation state.

[0088] According to some embodiments of the present invention, referring to Figure 7-Figure 26 The thermal management system 200 further includes an air conditioning module 20, a first on-off valve 30, a first throttle valve 70 and a fourth on-off valve 60. The air conditioning module 20 includes a compressor 201, a first in-vehicle heat exchanger 202 and an out-vehicle heat exchanger 203 connected to form a first refrigerant circuit. The air conditioning module 20 can perform cooling or heating on the air conditioning side of the vehicle. The compressor 201 inhales low-temperature and low-pressure refrigerant from the inlet, and after the compressor 201 operates to drive the piston to compress the refrigerant, the high-temperature and high-pressure refrigerant is discharged from the outlet.

[0089] When the first in-vehicle heat exchanger 202 is working, the high-temperature and high-pressure refrigerant discharged by the compressor 201 can be condensed and cooled (the heat released by the refrigerant in the first in-vehicle heat exchanger 202 is taken away by the air outside the first in-vehicle heat exchanger 202), and the air outside the first in-vehicle heat exchanger 202 absorbs heat and heats up; when the first in-vehicle heat exchanger 202 is not working, it can also only serve as a flow path for the refrigerant to pass through. The external heat exchanger 203 can play the role of a condenser or an evaporator according to the cooling or heating requirements of the thermal management system 200.

[0090] The plate heat exchanger 102 is connected in parallel with the vehicle exterior heat exchanger 203, the third end of the second heat exchange channel of the plate heat exchanger 102 is connected to the first end of the first vehicle interior heat exchanger 202, and the fourth end of the second heat exchange channel is connected to the inlet of the compressor 201. This facilitates the combined operation of the air conditioning module 20 and the vehicle refrigerator 100, so as to enrich the use selectivity of the thermal management system 200.

[0091] The first on-off valve 30 is connected between the first end of the external heat exchanger 203 and the first internal heat exchanger 202, and the first end of the external heat exchanger 203 is connected to the third end of the second heat exchange channel. The first throttle valve 70 is connected in parallel with the first on-off valve 30. The fourth on-off valve 60 is connected between the second end of the external heat exchanger 203 and the inlet of the compressor 201, and the second end of the external heat exchanger 203 is connected to the fourth end of the second heat exchange channel.

[0092] The first on-off valve 30 can open or close one end of the external heat exchanger 203 connected to the third end of the second heat exchange channel and the first internal heat exchanger 202. The fourth on-off valve 60 can open or close one end of the external heat exchanger 203 connected to the fourth end of the second heat exchange channel and the compressor 201. The first throttle valve 70 can throttle and cool down the high-temperature and high-pressure refrigerant from the compressor 201. Therefore, by selectively opening and closing the first on-off valve 30, the first throttle valve 70 and the fourth on-off valve 60, it is beneficial to enrich the selectivity of the thermal management system 200.

[0093] Reference Fig. 9 and Fig.18 When the air-conditioning module 20 is in heating mode, the composite vehicle refrigerator 100 is in refrigerator heating mode, wherein the four-way valve 104 is in the second working mode, the fourth on-off valve 60 is opened, the first on-off valve 30 is closed, the first throttle valve 70 is opened to play a throttling role, and the first in-vehicle heat exchanger 202 acts as a condenser.

[0094] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression, and flows to the first in-vehicle heat exchanger 202 (with wind passing through), and the low-temperature air is heated to high-temperature air through the first in-vehicle heat exchanger 202 and provided to the vehicle for heating. The refrigerant is cooled to medium-temperature and high-pressure refrigerant through the first in-vehicle heat exchanger 202 and flows into the motor heat exchange circuit. The medium-temperature and high-pressure refrigerant is heated by the ambient air or the residual heat of the motor, completing the heat absorption process from the environment. After the refrigerant exchanges heat with the auxiliary heat exchange module 3, the heating of the vehicle refrigerator 100 is completed. The refrigerant is connected to the gas-liquid separator through the fourth on-off valve 60, and the gas-liquid separator separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas), ensuring that the compressor 201 has stable air intake, and finally the refrigerant returns to the compressor 201, thereby forming a cycle.

[0095] Reference Fig.10 and Fig. 20 When the air-conditioning module 20 is in heating mode, the composite vehicle refrigerator 100 is in refrigerator heating mode, wherein the four-way valve 104 is in the third working mode, the fourth on-off valve 60 is opened, the first on-off valve 30 is closed, the first throttle valve 70 is opened to play a throttling role, and the first in-vehicle heat exchanger 202 acts as a condenser.

[0096] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression, and flows to the first in-vehicle heat exchanger 202 (with wind passing through), and the low-temperature air is heated to high-temperature air through the first in-vehicle heat exchanger 202 and provided to the vehicle for heating. The refrigerant is cooled to medium-temperature and high-pressure refrigerant through the first in-vehicle heat exchanger 202 and flows to the motor heat exchange circuit. All the waste heat of the motor is used as a heat-absorbing heat source for the plate heat exchanger 102. When the heat still cannot meet the use requirements of the plate heat exchanger 102, the motor is blocked to increase the heating power of the motor to meet the heat demand of the motor heat exchange circuit. The refrigerant and the auxiliary heat exchange module 3 perform heat exchange to complete the heating of the vehicle refrigerator 100. The refrigerant is connected to the gas-liquid separator through the fourth on-off valve 60. The gas-liquid separator separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure that the compressor 201 is stable in air intake. Finally, the refrigerant returns to the compressor 201, thereby forming a cycle.

[0097] Reference Fig.11 and Fig.19 When the air-conditioning module 20 is in heating mode, the composite vehicle refrigerator 100 is in refrigerator heating mode, and the four-way valve 104 is in the fourth working mode (there is an imbalance between the heat dissipation of the motor and the heat absorption of the plate heat exchanger 102, and the heat dissipation of the motor and the heat absorption of the plate heat exchanger 102 need to be precisely adjusted), the fourth on-off valve 60 is opened, the first on-off valve 30 is closed, the first throttle valve 70 is opened to play a throttling role, and the first in-vehicle heat exchanger 202 acts as a condenser.

[0098] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression, and flows to the first in-vehicle heat exchanger 202 (with wind passing through), and the low-temperature air is heated to high-temperature air through the first in-vehicle heat exchanger 202 and provided to the vehicle for heating. The refrigerant is cooled to medium-temperature and high-pressure refrigerant through the first in-vehicle heat exchanger 202 and flows into the motor heat exchange circuit. Part of the heat of the motor is used for waste heat recovery, and part of the heat of the motor is released to the environment through the second motor heat exchanger 103. After the refrigerant and the auxiliary heat exchange module 3 perform heat exchange, the heating of the vehicle refrigerator 100 is completed. The refrigerant is connected to the gas-liquid separator through the fourth on-off valve 60, and the gas-liquid separator separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas), ensuring that the compressor 201 has stable air intake, and finally the refrigerant returns to the compressor 201, thereby forming a cycle.

[0099] Further, refer to Figure 7-Figure 26 The air conditioning module 20 further includes a second in-vehicle heat exchanger 204, a second on-off valve 40, and a second throttle valve 80. One end of the second in-vehicle heat exchanger 204 is connected to the second end of the outside heat exchanger 203 and the fourth end of the second heat exchange channel, and the other end of the second in-vehicle heat exchanger 204 is connected to the inlet of the compressor 201. The second on-off valve 40 connects the first end of the first in-vehicle heat exchanger 202 and the outside heat exchanger 203. One end of the second throttle valve 80 is connected to the outside heat exchanger 203 and the fourth end of the second heat exchange channel, and the other end of the second throttle valve 80 is connected to one end of the second in-vehicle heat exchanger 204.

[0100] The second in-vehicle heat exchanger 204 and the fourth on-off valve 60 can be used to conduct the fourth end of the second heat exchange passage between the external heat exchanger 203 and the inlet of the compressor 201, enriching the selectivity of the thermal management system 200. The second in-vehicle heat exchanger 204 is suitable for acting as an evaporator, cooling the high-temperature air to low-temperature air and providing it to the vehicle for refrigeration. At this time, the refrigerant at the other end of the second in-vehicle heat exchanger 204 is in a low-temperature and low-pressure state. The second on-off valve 40 can conduct or close the first in-vehicle heat exchanger 202 and the external heat exchanger 203. The second throttle valve 80 can throttle and cool the refrigerant passing through, turning the refrigerant into low-temperature and low-pressure wet steam or supercooled liquid.

[0101] Reference Figure 8 and Fig.15 When the air conditioning module 20 is in cooling mode, the refrigerator heating mode of the vehicle refrigerator 100 can be added. When the four-way valve 104 is in the first working mode, the first on-off valve 30 and the second on-off valve 40 are turned on, the fourth on-off valve 60 and the first throttle valve 70 are closed, and the second throttle valve 80 is opened to throttle and cool down.

[0102] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression. The compressor 201 is connected to the first in-vehicle heat exchanger 202 (without wind passing through). The first in-vehicle heat exchanger 202 only serves as a flow channel. At this time, the other end of the first in-vehicle heat exchanger 202 is still a high-temperature and high-pressure refrigerant (gas). The other end of the first in-vehicle heat exchanger 202 is connected to the outside heat exchanger 203 through the second on-off valve 40. The refrigerant exchanges heat with the environment through the outside heat exchanger 203, so that the outlet of the outside heat exchanger 203 is a medium-temperature and high-pressure refrigerant (which may be liquid or gas, determined by the ambient temperature).

[0103] The vehicle exterior heat exchanger 203 is connected to the second throttle valve 80. The refrigerant is throttled and cooled through the second throttle valve 80 to become low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the second throttle valve 80 is connected to the second vehicle interior heat exchanger 204. At this time, high-temperature air passes through the second vehicle interior heat exchanger 204. The second vehicle interior heat exchanger 204 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle interior for refrigeration. The refrigerant at the other end of the second vehicle interior heat exchanger 204 is a low-temperature and low-pressure refrigerant.

[0104] The other end of the second in-vehicle heat exchanger 204 is connected to the gas-liquid separator, which separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure stable air intake of the compressor 201. Finally, the refrigerant returns to the compressor 201, thus forming a cycle.

[0105] At the same time, in the first working mode of the four-way valve 104, the refrigerant dissipates heat and cools down in the second heat exchanger 103 of the motor, and then enters the auxiliary heat exchange module 3 and / or the first heat exchanger 101 of the motor to absorb heat and heat up to take away the heat, thereby realizing the refrigeration of the vehicle refrigerator 100.

[0106] Reference Fig.12 and Fig.23 When the air conditioner is in dehumidification mode, the first on-off valve 30 and the second on-off valve 40 are opened, the fourth on-off valve 60 and the first throttle valve 70 are closed, and the second throttle valve 80 is opened for throttling.

[0107] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression. The compressor 201 is connected to the first in-vehicle heat exchanger 202 (whether to start the air circulation is determined according to the needs). The first in-vehicle heat exchanger 202 releases heat according to the needs. At this time, the other end of the first in-vehicle heat exchanger 202 is still the high-temperature and high-pressure refrigerant (gas). The other end of the first in-vehicle heat exchanger 202 is connected to the outside heat exchanger 203 through the second on-off valve 40. The refrigerant exchanges heat with the environment through the outside heat exchanger 203, so that the outlet of the outside heat exchanger 203 is the medium-temperature and high-pressure refrigerant (which may be liquid or gas, determined by the ambient temperature).

[0108] The vehicle exterior heat exchanger 203 is connected to the second throttle valve 80. The refrigerant is throttled and cooled through the second throttle valve 80, and becomes low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the second throttle valve 80 is connected to the second vehicle interior heat exchanger 204. At this time, high-temperature air passes through the second vehicle interior heat exchanger 204. The second vehicle interior heat exchanger 204 acts as an evaporator. The high-humidity air is cooled to precipitate condensed water, and the absolute moisture content in the vehicle decreases. If the vehicle interior air passing through the second vehicle interior heat exchanger 204 needs temperature compensation after dehumidification, part of the vehicle interior air flows through the first vehicle interior heat exchanger 202 for heating, so as to control the vehicle interior temperature while reducing the humidity in the vehicle.

[0109] The refrigerant at the other end of the second in-car heat exchanger 204 is a low-temperature and low-pressure refrigerant. The other end of the second in-car heat exchanger 204 is connected to the gas-liquid separator. The gas-liquid separator separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure the stable air intake of the compressor 201. Finally, the refrigerant returns to the compressor 201, thereby forming a cycle.

[0110] Furthermore, refer to Figure 7-Figure 26 , the outlet of the compressor 201 is connected to one end of the first in-vehicle heat exchanger 202, and the other end of the first in-vehicle heat exchanger 202 can be selectively connected to at least one of the external heat exchanger 203 and the plate heat exchanger 102. That is, the other end of the first in-vehicle heat exchanger 202 can be connected only to the second in-vehicle heat exchanger 204, so that the refrigerant flowing out of the first in-vehicle heat exchanger 202 can only flow to the second in-vehicle heat exchanger 204; or, the other end of the first in-vehicle heat exchanger 202 is connected only to the plate heat exchanger 102, so that the refrigerant flowing out of the first in-vehicle heat exchanger 202 can only flow to the plate heat exchanger 102; or, the other end of the first in-vehicle heat exchanger 202 is connected to both the external heat exchanger 203 and the plate heat exchanger 102, so that the refrigerant flowing out of the first in-vehicle heat exchanger 202 can flow to the external heat exchanger 203 and the plate heat exchanger 102. As a result, the flow selectivity of the refrigerant is increased, making the thermal management system 200 suitable for various usage requirements of users.

[0111] At least one of the external heat exchanger 203 and the plate heat exchanger 102 can be selectively connected to at least one of one end of the second internal heat exchanger 204 and the inlet of the compressor 201, and the other end of the second internal heat exchanger 204 is connected to the inlet of the compressor 201. Thus, the refrigerant flowing out of the external heat exchanger 203 and / or the plate heat exchanger 102 can return to the compressor 201 through the second internal heat exchanger 204, or the refrigerant flowing out of the external heat exchanger 203 and / or the plate heat exchanger 102 can directly return to the compressor 201. Thus, during use, the thermal management system 200 can connect the external heat exchanger 203 and / or the plate heat exchanger 102 with the inlet of the second internal heat exchanger 204 and / or the compressor 201 as needed, so that the thermal management system 200 is suitable for the current use requirements of the vehicle.

[0112] According to some embodiments of the present invention, referring to Figure 14-Figure 26 , the thermal management system 200 further includes a battery pack heat exchanger 90 and a fourth throttle valve 220. The battery pack heat exchanger 90 is connected in the first refrigerant circuit to be suitable for heat exchange with the battery pack. The battery pack heat exchanger 90 is connected in parallel with the first in-vehicle heat exchanger 202. The battery pack heat exchanger 90 can be selectively connected to one of the inlet and outlet of the compressor 201. The fourth throttle valve 220 is connected between one end of the battery pack heat exchanger 90 and the inlet and outlet of the compressor 201. In other words, the refrigerant (gas) flowing out of the compressor 201 can flow to the first in-vehicle heat exchanger 202, or to the battery pack heat exchanger 90. The fourth throttle valve 220 is arranged between the inlet and outlet of the compressor 201 and the battery pack heat exchanger 90, and the flow rate of the refrigerant is accurately adjusted by electronic control to achieve efficient control of the temperature.

[0113] Optionally, the fourth throttle valve 220 may be a large-caliber electronic expansion valve, which has a faster response speed, a higher adjustment accuracy, and a wider operating range, and is suitable for fine temperature control.

[0114] Further, refer to Figure 14-Figure 26 , the thermal management system 200 further includes a fifth on-off valve 230 and a sixth on-off valve 240. The fifth on-off valve 230 is connected between the outlet of the compressor 201 and the fourth throttle valve 220. The sixth on-off valve 240 is connected between the inlet of the compressor 201 and the fourth throttle valve 220. Thus, the flow path between the outlet of the compressor 201 and the battery pack heat exchanger 90 can be opened or closed by the fifth on-off valve 230, and the flow path between the inlet of the compressor 201 and the battery pack heat exchanger 90 can be opened or closed by the sixth on-off valve 240.

[0115] Reference Fig.15When the air conditioning module 20 is in cooling mode (compounded with the motor heat exchange circuit 10 to dissipate heat and / or refrigerator cooling mode), wherein the four-way valve 104 is in the first working mode, the fourth on-off valve 60 and the first throttle valve 70 are closed, the first on-off valve 30 and the second on-off valve 40 are opened, and the second throttle valve 80 is opened to play a role of throttling and cooling.

[0116] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression. The compressor 201 is connected to the first in-vehicle heat exchanger 202 (without wind passing through). The first in-vehicle heat exchanger 202 only serves as a flow channel. At this time, the other end of the first in-vehicle heat exchanger 202 is still high-temperature and high-pressure refrigerant (gas).

[0117] The other end of the first in-vehicle heat exchanger 202 is connected to the external heat exchanger 203 through the second on-off valve 40. The refrigerant exchanges heat with the environment through the external heat exchanger 203, and the refrigerant releases heat and cools down. The outlet of the external heat exchanger 203 is a medium-temperature and high-pressure refrigerant (which may be liquid or gas, depending on the ambient temperature).

[0118] The vehicle exterior heat exchanger 203 is connected to the second throttle valve 80. The refrigerant is throttled and cooled through the second throttle valve 80, and becomes low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the second throttle valve 80 is connected to the second vehicle interior heat exchanger 204. At this time, high-temperature air passes through the second vehicle interior heat exchanger 204. The second vehicle interior heat exchanger 204 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle interior for refrigeration. The refrigerant at the other end of the second vehicle interior heat exchanger 204 is a low-temperature and low-pressure refrigerant.

[0119] The other end of the second in-vehicle heat exchanger 204 is connected to the gas-liquid separator, which separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure stable air intake of the compressor 201. Finally, the refrigerant returns to the compressor 201, thus forming a cycle.

[0120] The four-way valve 104 adopts the first working mode, and the vehicle refrigerator 100 operates independently. After the refrigerant dissipates heat and cools down in the second heat exchanger 103 of the motor, it enters the auxiliary heat exchange module 3 and / or the first heat exchanger 101 of the motor to absorb heat and heat up to take away heat, thereby achieving refrigeration of the vehicle refrigerator 100.

[0121] In addition, refer to Figure 7-Figure 26The thermal management system 200 further includes a third on-off valve 50, one end of which is connected to the third end of the second heat exchange channel, and the other end of the third on-off valve 50 is connected to the battery pack heat exchanger 90, the first end of the first in-vehicle heat exchanger 202, and the second end of the external heat exchanger 203. Thus, the third on-off valve 50 is suitable for connecting or closing the third end of the second heat exchange channel with the battery pack heat exchanger 90, the first in-vehicle heat exchanger 202, and the external heat exchanger 203. By controlling the third on-off valve 50, it is beneficial to make the vehicle refrigerator 100 operate independently, or to make the vehicle refrigerator 100 work in combination with the air conditioning module 20 and / or the battery pack heat exchanger 90.

[0122] Furthermore, refer to Figure 14-Figure 26 , the thermal management system 200 further includes a third throttle valve 210, a first one-way valve 250, and a second one-way valve 260. The third throttle valve 210 is connected between the third end of the second heat exchange channel and the battery pack heat exchanger 90. The first one-way valve 250 is connected between the third on-off valve 50 and the third throttle valve 210, and the first one-way valve 250 only allows the refrigerant flowing out of the battery pack heat exchanger 90 to pass through. The second one-way valve 260 is connected between the end of the external heat exchanger 203 away from the second on-off valve 40 and the third throttle valve 210, and the second one-way valve 260 only allows the refrigerant to flow to the battery pack heat exchanger 90.

[0123] The third throttle valve 210 can throttle and cool the refrigerant. The first one-way valve 250 can open or close the flow path between the third on-off valve 50 and the third throttle valve 210, and the sixth on-off valve 240 can open or close the flow path between the other end of the external heat exchanger 203 and the third throttle valve 210. The first one-way valve 250 and the second one-way valve 260 only allow the refrigerant to flow in a specific direction, while preventing the refrigerant from flowing in the opposite direction, thereby ensuring that the flow direction of the refrigerant is suitable for the use mode of the battery pack heat exchanger 90 (refer to Fig.17 , Fig.21 and Fig. 22 ).

[0124] Reference Fig.16 When the air conditioning module 20 is in cooling mode, the battery pack heat exchanger 90 is in battery pack cooling mode, and the four-way valve 104 is in the first working mode, the fourth on-off valve 60, the fifth on-off valve 230 and the first throttle valve 70 are closed, the first on-off valve 30, the second on-off valve 40 and the sixth on-off valve 240 are opened, and the second throttle valve 80, the third throttle valve 210 and the fourth throttle valve 220 are opened for throttling.

[0125] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression. The compressor 201 is connected to the first in-vehicle heat exchanger 202 (without wind passing through). The first in-vehicle heat exchanger 202 only serves as a flow channel. At this time, the other end of the first in-vehicle heat exchanger 202 is still high-temperature and high-pressure refrigerant (gas).

[0126] The other end of the first in-vehicle heat exchanger 202 is connected to the external heat exchanger 203 through the second on-off valve 40. The refrigerant exchanges heat with the environment through the external heat exchanger 203, and the refrigerant releases heat and cools down. The outlet of the external heat exchanger 203 is a medium-temperature and high-pressure refrigerant (which may be liquid or gas, depending on the ambient temperature).

[0127] After passing through the off-board heat exchanger 203, the refrigerant forms two branches:

[0128] Branch one: the outdoor heat exchanger 203 is connected to the second throttle valve 80, and the refrigerant is throttled and cooled through the second throttle valve 80 to become low-temperature and low-pressure wet steam or supercooled liquid; the outlet of the second throttle valve 80 is connected to the second indoor heat exchanger 204, and at this time, high-temperature air passes through the second indoor heat exchanger 204, and the second indoor heat exchanger 204 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 other end of the second indoor heat exchanger 204 is a low-temperature and low-pressure refrigerant.

[0129] Branch 2: The refrigerant is throttled and cooled through the third throttle valve 210 to become low-temperature and low-pressure wet steam or supercooled liquid; the outlet of the third throttle valve 210 is connected to the battery pack heat exchanger 90. At this time, the battery pack heat exchanger 90 acts as an evaporator, and the high-temperature refrigerant is cooled to a low-temperature refrigerant, which is then provided to the battery pack for cooling. The refrigerant at the outlet of the battery pack heat exchanger 90 is a low-temperature and low-pressure refrigerant.

[0130] The refrigerant at the other end of the second in-vehicle heat exchanger 204 merges with the refrigerant at the outlet of the battery pack heat exchanger 90, and both flow to the gas-liquid separator. The gas-liquid separator separates the refrigerant and the refrigerant oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure stable air intake of the compressor 201. Finally, the refrigerant returns to the compressor 201, thus forming a cycle.

[0131] The four-way valve 104 adopts the first working mode, and the vehicle refrigerator 100 operates independently.

[0132] Reference Fig.17 , when the battery pack heat exchanger 90 is in the battery pack cooling mode and the four-way valve 104 is in the first working mode, the fourth on-off valve 60, the first throttle valve 70, the first check valve 250 and the fifth on-off valve 230 are closed, the first on-off valve 30, the second on-off valve 40, the second check valve 260 and the sixth on-off valve 240 are opened, and the second throttle valve 80, the third throttle valve 210 and the fourth throttle valve 220 are opened.

[0133] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression. The compressor 201 is connected to the first in-vehicle heat exchanger 202 (without wind passing through). The first in-vehicle heat exchanger 202 only serves as a flow channel. At this time, the other end of the first in-vehicle heat exchanger 202 is still a high-temperature and high-pressure refrigerant (gas). The other end of the first in-vehicle heat exchanger 202 is connected to the outside heat exchanger 203 through the second on-off valve 40. The refrigerant exchanges heat with the environment through the outside heat exchanger 203, and the refrigerant releases heat and cools down. The outlet of the outside heat exchanger 203 is a medium-temperature and high-pressure refrigerant (which may be liquid or gas, determined by the ambient temperature).

[0134] The refrigerant is throttled and cooled by the third throttle valve 210 and becomes low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the third throttle valve 210 is connected to the battery pack heat exchanger 90. At this time, the battery pack heat exchanger 90 acts as an evaporator. The high-temperature refrigerant from the battery pack heat exchanger 90 is cooled down to a low-temperature refrigerant through the battery pack heat exchanger 90 and provided to the battery pack for refrigeration. The refrigerant at the outlet of the battery pack heat exchanger 90 is a low-temperature and low-pressure refrigerant.

[0135] The refrigerant at the outlet of the pool heat exchanger 90 flows to the gas-liquid separator, which separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure stable air suction of the compressor 201. Finally, the refrigerant returns to the compressor 201, thus forming a cycle.

[0136] The four-way valve 104 adopts the first working mode, and the vehicle refrigerator 100 operates independently.

[0137] Reference Fig.21 When the air conditioning module 20 is in the heating mode and the synchronous battery pack heat exchanger 90 is in the battery pack heating mode, and the four-way valve 104 is in the third working mode, the third on-off valve 50, the fifth on-off valve 230, the fourth on-off valve 60 and the first check valve 250 are opened, and the first on-off valve 30, the second on-off valve 40, the second check valve 260 and the sixth on-off valve 240 are closed. At the same time, the first throttle valve 70, the third throttle valve 210 and the fourth throttle valve 220 are all opened to play a role in throttling and cooling.

[0138] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression, which is divided into two branches:

[0139] First branch: The compressor 201 is connected to the first in-vehicle heat exchanger 202 (with wind passing through it), and the low-temperature air is heated to high-temperature air through the first in-vehicle heat exchanger 202 and provided to the vehicle for heating. The refrigerant is cooled to medium-temperature and high-pressure refrigerant through the first in-vehicle heat exchanger 202. The other end of the first in-vehicle heat exchanger 202 is connected to the first throttle valve 70, and the refrigerant is throttled and cooled through the first throttle valve 70 to become low-temperature and low-pressure wet steam or supercooled liquid.

[0140] Second branch: The compressor 201 enters the battery pack heat exchanger 90 through the fifth on-off valve 230 and the fourth throttle valve 220. The temperature of the low-temperature battery pack increases after heat exchange through the battery pack heat exchanger 90, and the refrigerant is cooled into a medium-temperature and high-pressure refrigerant through the battery pack heat exchanger 90. The outlet of the battery pack heat exchanger 90 is connected to the third throttle valve 210. The refrigerant is throttled and cooled through the third throttle valve 210 to become low-temperature and low-pressure wet steam or supercooled liquid. The refrigerant merges at the outlet of the third throttle valve 210 and the outlet of the first throttle valve 70, and flows to the plate heat exchanger 102 through the third on-off valve 50. At this time, the plate heat exchanger 102 is an evaporator, and the refrigerant is heated by the ambient air or the waste heat of the motor to complete the heat absorption process from the environment, thereby realizing the heating of the vehicle refrigerator. The refrigerant at the outlet of the plate heat exchanger 102 is a low-temperature and low-pressure refrigerant. The outlet of the plate heat exchanger 102 is connected to the gas-liquid separator through the fourth on-off valve 60. The gas-liquid separator separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure stable air suction of the compressor 201. Finally, the refrigerant returns to the compressor 201, thus forming a cycle.

[0141] When the inlet temperature of the battery pack heat exchanger 90 exceeds a certain range, the local temperature of the battery pack is likely to exceed its operating temperature range. Therefore, the required temperature of the first in-vehicle heat exchanger 202 needs to continue to increase (for example, the target temperature is 95°C), and when the inlet temperature of the battery pack heat exchanger 90 reaches the upper limit (for example, the upper limit temperature is 65°C), the valve opening of the fourth throttle valve 220 is reduced to reduce the inlet temperature of the battery pack heat exchanger 90. The fourth throttle valve 220 realizes the control of different heating temperatures when double-opened.

[0142] Reference Fig. 22 When the air conditioning module 20 is not running, the battery pack heat exchanger 90 is in the battery pack heating mode, and the four-way valve 104 is in the third working mode, the third on-off valve 50, the fourth on-off valve 60, the fifth on-off valve 230 and the first one-way valve 250 are opened, the first on-off valve 30, the second on-off valve 40, the second one-way valve 260 and the sixth on-off valve 240 are closed, and at the same time, the first throttle valve 70 and the second throttle valve 80 are closed, and the third throttle valve 210 and the fourth throttle valve 220 are opened to achieve the throttling and cooling effect.

[0143] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression, and enters the battery pack heat exchanger 90 through the fifth on-off valve 230 and the fourth throttle valve 220. The temperature of the low-temperature battery increases after heat exchange through the battery pack heat exchanger 90, and the refrigerant is cooled into a medium-temperature and high-pressure fluid through the battery pack heat exchanger 90. The outlet of the battery pack heat exchanger 90 is connected to the third throttle valve 210. The refrigerant is throttled and cooled through the third throttle valve 210 to become low-temperature and low-pressure wet steam or supercooled liquid. The refrigerant flows to the plate heat exchanger 102 through the third on-off valve 50. At this time, the plate heat exchanger 102 is an evaporator. The refrigerant is heated by the ambient air or the waste heat of the motor to complete the heat absorption process from the environment, thereby realizing the heating of the vehicle refrigerator 100. The refrigerant at the outlet of the plate heat exchanger 102 is a low-temperature and low-pressure fluid. The outlet of the plate heat exchanger 102 is connected to the gas-liquid separator through the fourth on-off valve 60. The gas-liquid separator 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 201. Finally, the refrigerant returns to the compressor 201, thus forming a cycle.

[0144] Reference Fig.13 and Fig.24 When the air-conditioning module 20 is in the air-conditioning defog mode and the four-way valve 104 is in the second working mode, the fifth on-off valve 230, the sixth on-off valve 240, the second on-off valve 40, the first one-way valve 250, the second one-way valve 260 and the first on-off valve 30 are closed, the third on-off valve 50 and the fourth on-off valve 60 are opened, the fourth throttle valve 220 and the third throttle valve 210 are closed, and the first throttle valve 70 is opened for throttling.

[0145] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression, and is connected to the first in-vehicle heat exchanger 202 (with wind passing through). The low-temperature air is heated to high-temperature air through the first in-vehicle heat exchanger 202, and the mist droplets on the glass are blown away through the defogger air duct. The refrigerant is cooled to a medium-temperature and high-pressure fluid through the first in-vehicle heat exchanger 202.

[0146] The other end of the first in-vehicle heat exchanger 202 is connected to the first throttle valve 70. The refrigerant is throttled and cooled by the first throttle valve 70, and becomes low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the first throttle valve 70 is connected to the plate heat exchanger 102 through the third on-off valve 50. At this time, the plate heat exchanger 102 is an evaporator. The refrigerant is heated by the ambient air or the residual heat of the motor to complete the heat absorption process from the environment, thereby realizing the heating of the vehicle refrigerator 100. The refrigerant at the outlet of the plate heat exchanger 102 is a low-temperature and low-pressure fluid. The outlet of the plate heat exchanger 102 is connected to the gas-liquid separator through the fourth on-off valve 60. The gas-liquid separator separates the refrigerant and the refrigeration oil, and acts as an intermediate storage of the refrigerant (gas), ensuring the stable suction of the compressor 201. Finally, the refrigerant returns to the compressor 201, thereby forming a cycle.

[0147] The vehicle refrigerator 100 includes a semiconductor refrigeration sheet, which exchanges heat with the auxiliary heat exchange module 3, and the semiconductor refrigeration sheet is powered on to realize cooling or heating of the vehicle refrigerator 100. Therefore, the normal use of the vehicle refrigerator 100 can be realized by directly powering on the semiconductor refrigeration sheet, so that the vehicle refrigerator 100 can operate independently.

[0148] According to some embodiments of the present invention, referring to Fig.25 and Fig.26 The vehicle refrigerator 100 includes a refrigerator heat exchange system 4, which includes a refrigerator compressor 41, a first refrigerator heat exchanger 42, and a second refrigerator heat exchanger 44 connected to form a second refrigerant circuit. The second refrigerator heat exchanger 44 is suitable for exchanging heat with the auxiliary heat exchange module 3. In this way, the vehicle refrigerator 100 can make full use of the refrigerator compressor 41, the first refrigerator heat exchanger 42, and the second refrigerator heat exchanger 44 in the second refrigerant circuit to independently operate for cooling or heating, thereby ensuring that the vehicle refrigerator 100 can continue to operate stably when the vehicle stops running, and ensuring that the vehicle refrigerator 100 can store food at a constant temperature.

[0149] Further, refer to Fig.25 and Fig.26 The thermal management system 200 further includes a refrigerator throttling device 43, one end of which is connected to the second refrigerator heat exchanger 44, and one end of which is connected to the refrigerator compressor 41. The refrigerator throttling device 43 can throttle and cool the refrigerant in the second refrigerant circuit, thereby throttling and cooling the refrigerant (gas) flowing out of the refrigerator compressor 41. The cooled refrigerant is separated into refrigerant and refrigeration oil from the gas-liquid separator in the second refrigerant circuit, and the gas-liquid separator acts as an intermediate storage of the refrigerant (gas), ensuring that the refrigerator compressor 41 has stable air intake, and finally the refrigerant returns to the refrigerator compressor 41.

[0150] Reference Fig.26 When the air conditioning module 20 is in cooling mode and synchronized with the refrigerator cooling, and the four-way valve 104 is in the first working mode, the first on-off valve 30 and the second on-off valve 40 are opened, the fourth on-off valve 60 and the first throttle valve 70 are closed, and the second throttle valve 80 and the refrigerator throttling device 43 are opened to play the role of throttling and cooling.

[0151] The compressor 201 discharges high-temperature and high-pressure refrigerant (gas) after compression. The compressor 201 is connected to the first in-vehicle heat exchanger 202 (without wind passing through). The first in-vehicle heat exchanger 202 only serves as a flow channel. At this time, the other end of the first in-vehicle heat exchanger 202 is still a high-temperature and high-pressure refrigerant (gas). The other end of the first in-vehicle heat exchanger 202 is connected to the outside heat exchanger 203 through the second on-off valve 40. The refrigerant exchanges heat with the environment through the outside heat exchanger 203, and the refrigerant releases heat. The outlet of the outside heat exchanger 203 is a medium-temperature and high-pressure refrigerant (which may be liquid or gas, determined by the ambient temperature).

[0152] The vehicle exterior heat exchanger 203 is connected to the second throttle valve 80. The refrigerant is throttled and cooled by the second throttle valve 80, and becomes low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the second throttle valve 80 is connected to the second vehicle interior heat exchanger 204. At this time, high-temperature air passes through the second vehicle interior heat exchanger 204. The second vehicle interior heat exchanger 204 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle interior for refrigeration. The refrigerant at the other end of the second vehicle interior heat exchanger 204 is a low-temperature and low-pressure refrigerant. The other end of the second vehicle interior heat exchanger 204 is connected to a gas-liquid separator, which separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas), ensuring that the compressor 201 is stable in air intake. Finally, the refrigerant returns to the compressor 201, thereby forming a cycle.

[0153] The refrigerator compressor 41 discharges high-temperature and high-pressure refrigerant (gas) after compression, and is connected to the second refrigerator heat exchanger 44. The refrigerant exchanges heat with the auxiliary heat exchange module 3 through the second refrigerator heat exchanger 44, and the refrigerant releases heat. The outlet of the second refrigerator heat exchanger 44 is a medium-temperature and high-pressure refrigerant (which may be liquid or gas, determined by the ambient temperature). The second refrigerator heat exchanger 44 is connected to the refrigerator throttling device 43. The refrigerant is throttled and cooled through the refrigerator throttling device 43, and becomes low-temperature and low-pressure wet steam or supercooled liquid. The outlet of the refrigerator throttling device 43 is connected to the first refrigerator heat exchanger 42. At this time, high-temperature air passes through the first refrigerator heat exchanger 42. The first refrigerator heat exchanger 42 acts as an evaporator. The high-temperature air is cooled to low-temperature air and provided to the vehicle refrigerator 100 for refrigeration. The refrigerant at the outlet of the first refrigerator heat exchanger 42 is a low-temperature and low-pressure refrigerant. The outlet of the first refrigerator heat exchanger 42 is connected to the gas-liquid separator, which separates the refrigerant and the refrigeration oil. At the same time, the gas-liquid separator acts as an intermediate storage of the refrigerant (gas) to ensure that the refrigerator compressor 41 has stable air intake. Finally, the refrigerant returns to the refrigerator compressor 41, thereby forming a cycle.

[0154] The four-way valve 104 is in the first working mode. After the refrigerant cools down in the motor heat exchanger 103 , it enters the auxiliary heat exchange module 3 and (or) the motor 101 to absorb heat and heat up to take away the heat, thereby achieving refrigeration of the vehicle refrigerator 100 .

[0155] Therefore, the auxiliary heat exchange module 3 and the second refrigerator heat exchanger 44 are arranged together, and the auxiliary heat exchange module 3 is used to take away the waste heat discharged by the refrigerator heat exchange system 4. Since the auxiliary heat exchange module 3 uses the external heat exchanger 203 and / or the motor heat exchanger 103 to dissipate heat, the heat dissipation is sufficient, which is beneficial to increase the refrigeration efficiency of the vehicle refrigerator 100, and overcomes the problem of insufficient cooling capacity and low efficiency caused by insufficient heat dissipation of the refrigerator heat exchange system 4.

[0156] The vehicle according to the third embodiment of the present invention is characterized by comprising the vehicle refrigerator 100 according to the first embodiment of the present invention; or the thermal management system 200 according to the second embodiment of the present invention.

[0157] The vehicle according to the embodiment of the present invention, by adopting the above-mentioned vehicle refrigerator 100 or thermal management system 200, is conducive to enriching the functionality of the vehicle, thereby improving the comfort of use of the vehicle and enhancing the market competitiveness of the vehicle.

[0158] Other components and operations of the vehicle according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0159] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0160] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0161] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0162] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle refrigerator, characterized in that: include: An inner box and an outer box, wherein the outer box is arranged at the periphery of the inner box, and the outer box and the inner box together define a containing cavity; A heat exchange module, wherein the heat exchange module is arranged in the accommodating cavity; An auxiliary heat exchange module, the auxiliary heat exchange module is located in the accommodating cavity, and the auxiliary heat exchange module is arranged at the heat exchange module, and the auxiliary heat exchange module is used to perform heat exchange with the heat exchange module.

2. The vehicle refrigerator according to claim 1, characterized in that: The auxiliary heat exchange module is arranged on the outer box.

3. The vehicle refrigerator according to claim 1, characterized in that: The heat exchange module is arranged on a side of the accommodating cavity adjacent to the inner box body, and the auxiliary heat exchange module is arranged on a side of the heat exchange module away from the center of the inner box body.

4. The vehicle refrigerator according to claim 1, characterized in that: The heat exchange module comprises a first heat exchange end and a second heat exchange end which are arranged opposite to each other, wherein the first heat exchange end is adjacent to the inner box, and the second heat exchange end is located between the first heat exchange end and the auxiliary heat exchange module, and the auxiliary heat exchange module is used to perform heat exchange with the second heat exchange end. When one of the first heat exchange end and the second heat exchange end is a cold end, the other of the first heat exchange end and the second heat exchange end is a hot end, so that the vehicle refrigerator can be switched between a refrigerator heating mode and a refrigerator cooling mode.

5. The vehicle refrigerator according to claim 1, characterized in that: The heat exchange module includes a semiconductor refrigeration sheet or a refrigerator heat exchanger.

6. The vehicle refrigerator according to any one of claims 1 to 5, characterized in that: The auxiliary heat exchange module includes a liquid-cooled heat sink.

7. A thermal management system, characterized in that: include: Motor heat exchange circuit; A vehicle refrigerator, wherein the vehicle refrigerator is the vehicle refrigerator according to any one of claims 1 to 6, and the auxiliary heat exchange module of the vehicle refrigerator is connected to the motor heat exchange circuit.

8. The thermal management system according to claim 7, characterized in that: Also includes: The first heat exchanger and heat exchange device of the motor, The motor first heat exchanger and the heat exchange device are connected to form the motor heat exchange loop.

9. The thermal management system according to claim 8, characterized in that: The heat exchange device comprises a plate heat exchanger and a second motor heat exchanger, and at least one of the plate heat exchanger and the second motor heat exchanger is connected to the first motor heat exchanger to form the motor heat exchange loop.

10. The thermal management system according to claim 9, characterized in that: The motor heat exchange circuit is provided with a four-way valve. The four-way valve includes a first interface, a second interface, a third interface and a fourth interface, the first interface is connected to the first end of the first heat exchange channel of the plate heat exchanger, the second interface and the second end of the first heat exchange channel are both connected to one end of the first heat exchanger of the motor, the third interface is connected to one end of the second heat exchanger of the motor, the other end of the second heat exchanger of the motor is connected to one end of the auxiliary heat exchange module, the other end of the auxiliary heat exchange module is connected to the other end of the first heat exchanger of the motor, and the fourth interface is connected to the other end of the second heat exchanger of the motor.

11. The thermal management system according to claim 10, characterized in that: The four-way valve includes a first working mode, a second working mode, a third working mode and a fourth working mode. When the four-way valve is in the first working mode, the second interface and the third interface are connected, and the second heat exchanger of the motor is connected to the first heat exchanger of the motor to form the motor heat exchange circuit; When the four-way valve is in the second working mode, the first interface and the third interface are connected, and the second heat exchanger of the motor, the plate heat exchanger and the first heat exchanger of the motor are connected to form the motor heat exchange circuit; When the four-way valve is in the third working mode, the first interface and the fourth interface are connected, and the plate heat exchanger and the first heat exchanger of the motor are connected to form the motor heat exchange circuit; When the four-way valve is in the fourth working mode, the first interface is connected to the third interface and the fourth interface, and the second heat exchanger of the motor, the plate heat exchanger and the first heat exchanger of the motor are connected to form the motor heat exchange circuit.

12. The thermal management system according to claim 9, characterized in that: Further including: An air conditioning module, the air conditioning module comprising a compressor, a first in-vehicle heat exchanger and an out-vehicle heat exchanger connected to form a first refrigerant circuit, the plate heat exchanger and the out-vehicle heat exchanger are connected in parallel, a third end of a second heat exchange channel of the plate heat exchanger is connected to a first end of the first in-vehicle heat exchanger, and a fourth end of the second heat exchange channel is connected to an inlet of the compressor; a first on-off valve, wherein the first on-off valve is connected between a first end of the external heat exchanger and the first internal heat exchanger, and the first end of the external heat exchanger is connected to a third end of the second heat exchange channel; a first throttle valve, the first throttle valve being connected in parallel with the first on-off valve; A fourth on-off valve is connected between the second end of the external heat exchanger and the inlet of the compressor, and the second end of the external heat exchanger is connected to the fourth end of the second heat exchange channel.

13. The thermal management system according to claim 12, characterized in that: The air conditioning module further includes a second in-vehicle heat exchanger, one end of the second in-vehicle heat exchanger is connected to the second end of the out-vehicle heat exchanger and the fourth end of the second heat exchange channel, and the other end of the second in-vehicle heat exchanger is connected to the inlet of the compressor; a second on-off valve, the second on-off valve connecting the first end of the first in-vehicle heat exchanger and the out-vehicle heat exchanger; A second throttle valve, one end of the second throttle valve is connected to the external heat exchanger and the fourth end of the second heat exchange channel, and the other end of the second throttle valve is connected to the one end of the second internal heat exchanger.

14. The thermal management system according to claim 13, characterized in that: The outlet of the compressor is connected to one end of the first in-vehicle heat exchanger, and the other end of the first in-vehicle heat exchanger can be selectively connected to at least one of the outdoor heat exchanger and the plate heat exchanger, and the at least one of the outdoor heat exchanger and the plate heat exchanger can be selectively connected to one end of the second in-vehicle heat exchanger and at least one of the inlet of the compressor, and the other end of the second in-vehicle heat exchanger is connected to the inlet of the compressor.

15. The thermal management system according to claim 14, characterized in that: Further including: a battery pack heat exchanger, the battery pack heat exchanger being connected in the first refrigerant circuit to be suitable for exchanging heat with the battery pack, the battery pack heat exchanger being connected in parallel with the first in-vehicle heat exchanger, and the battery pack heat exchanger being selectively connected to one of the inlet and the outlet of the compressor; A fourth throttle valve is connected between one end of the battery pack heat exchanger and the inlet and outlet of the compressor.

16. The thermal management system according to claim 15, characterized in that: Further including: a fifth on-off valve, the fifth on-off valve being connected between the outlet of the compressor and the fourth throttle valve; A sixth on-off valve is connected between the inlet of the compressor and the fourth throttle valve.

17. The thermal management system according to claim 16, characterized in that: Further including: A third on-off valve, one end of the third on-off valve is connected to the third end of the second heat exchange channel, and the other end of the third on-off valve is connected to the battery pack heat exchanger, the first end of the first in-vehicle heat exchanger and the second end of the out-of-vehicle heat exchanger.

18. The thermal management system according to claim 17, characterized in that: Further including: a third throttle valve connected between a third end of the second heat exchange channel and the battery pack heat exchanger; A first one-way valve, wherein the first one-way valve is connected between the third on-off valve and the third throttle valve, The first one-way valve only allows the refrigerant flowing out of the battery pack heat exchanger to pass through; A second one-way valve, wherein the second one-way valve is connected between an end of the off-vehicle heat exchanger away from the second on-off valve and the third throttle valve, and the second one-way valve only allows the refrigerant to flow to the battery pack heat exchanger.

19. The thermal management system according to any one of claims 7 to 18, characterized in that: The vehicle refrigerator comprises a semiconductor refrigeration sheet, the semiconductor refrigeration sheet exchanges heat with the auxiliary heat exchange module, and the semiconductor refrigeration sheet is energized to realize cooling or heating of the vehicle refrigerator.

20. The thermal management system according to any one of claims 7 to 18, characterized in that: The vehicle refrigerator includes: a refrigerator heat exchange system, the refrigerator heat exchange system includes a refrigerator compressor, a first refrigerator heat exchanger and a second refrigerator heat exchanger connected to form a second refrigerant circuit; the second refrigerator heat exchanger is suitable for exchanging heat with the auxiliary heat exchange module.

21. The thermal management system according to claim 20, characterized in that: Also includes: A refrigerator throttling device, one end of which is connected to the second refrigerator heat exchanger, and one end of which is connected to the refrigerator compressor.

22. A vehicle, characterized in that: It comprises a vehicle-mounted refrigerator according to any one of claims 1-6; or a thermal management system according to any one of claims 7-21.

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