Vehicle-mounted refrigerator system, control method and vehicle

Abstract

The embodiment of the invention provides a vehicle-mounted refrigerator system, a control method and a vehicle. The vehicle-mounted refrigerator system comprises a refrigerator assembly, a heat dissipation assembly and a controller. The refrigerator assembly comprises a refrigerating part, and the refrigerating part is provided with a cold end and a hot end. The heat dissipation assembly comprises a liquid cooling loop and an air cooling assembly, the liquid cooling loop comprises a liquid cooling heat exchanger, a liquid cooling pump and a refrigeration flow path which are communicated, the liquid cooling heat exchanger is connected with the hot end, the refrigeration flow path comprises a compressor, and the air cooling assembly is connected with the liquid cooling heat exchanger and comprises a fan. The controller is electrically connected with the fan, the liquid cooling pump and the compressor and is configured to control starting and stopping of the fan and the liquid cooling pump at least based on the environment temperature and the operation state of the compressor. According to the technical scheme, the effects of improving the heat dissipation efficiency of the vehicle-mounted refrigerator and improving the refrigeration performance are achieved.

Description

Technical Field

[0001] This application relates to the field of vehicle refrigerator technology, and more particularly to a vehicle refrigerator system, control method, and vehicle. Background Technology

[0002] With the popularization of new energy vehicles and the development of intelligent driving technology, in-vehicle refrigerators have become a key feature for improving driving comfort. Among related technologies, air cooling is used to dissipate heat from in-vehicle refrigerators, but the heat dissipation effect is not ideal, affecting the cooling performance of the refrigerator. Summary of the Invention

[0003] This application provides an in-vehicle refrigerator system, a control method, and a vehicle to improve the heat dissipation efficiency and cooling performance of the in-vehicle refrigerator.

[0004] Firstly, the in-vehicle refrigerator system includes:

[0005] A refrigerator assembly, including a refrigeration component having a cold end and a hot end;

[0006] A heat dissipation assembly includes a liquid cooling circuit and an air-cooling component. The liquid cooling circuit includes a liquid-cooled heat exchanger, a liquid-cooled pump, and a cooling flow path connected in series. The liquid-cooled heat exchanger is connected to the hot end. The cooling flow path includes a compressor. The air-cooling component is connected to the liquid-cooled heat exchanger and includes a fan.

[0007] The controller, electrically connected to the fan, the liquid cooling pump, and the compressor, is configured to control the start and stop of the fan and the liquid cooling pump based at least on the ambient temperature and the operating status of the compressor.

[0008] In one embodiment, the cooling flow path includes:

[0009] An air conditioning circuit, including an air conditioning evaporator connected to the compressor; and

[0010] A cooler, connected in parallel with the air conditioner evaporator, has a subcooling channel that connects to the inlet of the liquid-cooled pump.

[0011] In one embodiment, the cooling flow path further includes:

[0012] The low-temperature radiator has its outlet connected to the inlet of the liquid cooling pump; and

[0013] A first control valve, electrically connected to the controller, has a first port, a second port, and a third port. The first port is connected to the liquid outlet of the liquid-cooled heat exchanger, the second port is connected to the liquid inlet of the subcooling channel, and the third port is connected to the liquid inlet of the low-temperature radiator.

[0014] The first control valve is configured to selectively open the first port and the second port, or the first port and the third port, based on the control signal from the controller.

[0015] In one embodiment, the heat dissipation assembly further includes:

[0016] The equipment radiator is connected to the outlet end of the liquid-cooled pump and is connected in parallel with the liquid-cooled heat exchanger.

[0017] In one embodiment, the heat dissipation assembly further includes:

[0018] The second control valve, electrically connected to the controller, includes a fourth port, a fifth port, and a sixth port. The fourth port is connected to the liquid outlet of the liquid-cooled heat exchanger, the fifth port is connected to the liquid outlet of the equipment radiator, and the sixth port is connected to the liquid inlet of the refrigeration flow path.

[0019] The second control valve is configured to selectively open the fifth port and the sixth port, or the fourth port and the sixth port, based on the control signal from the controller.

[0020] In one embodiment, the second control valve is configured to connect the sixth port to a portion of the fifth port and a portion of the fourth port based on a control signal from the controller.

[0021] In one embodiment, the device heat sink includes:

[0022] A battery cooler, connecting the outlet of the liquid-cooled pump to the fifth port; and

[0023] An electric drive cooler is connected in parallel or in series with the battery cooler.

[0024] In one embodiment, the air-cooled assembly further includes:

[0025] Heat dissipation fins are disposed between the fan and the liquid-cooled heat exchanger.

[0026] In one embodiment, the refrigerator assembly includes:

[0027] The housing has an insulation layer defining a receiving cavity, and the cooling component is disposed within the insulation layer; and

[0028] The cooling assembly includes a cooling element, cooling fins, and a circulating fan. The cooling element passes through the insulation layer and contacts the cold end of the cooling element. The cooling fins contact the cooling element and are at least partially located within the receiving cavity. The circulating fan is electrically connected to the controller and is located within the receiving cavity.

[0029] Secondly, the control method is used in the vehicle-mounted refrigerator system as described in any of the preceding claims, the method comprising:

[0030] Determine the ambient temperature and the compressor's operating status;

[0031] The start and stop of the fan and the liquid cooling pump are controlled according to the ambient temperature and the operating status of the compressor.

[0032] In one embodiment, the vehicle-mounted refrigerator system further includes a cooler, a low-temperature radiator, and a first control valve. The cooler is connected to the compressor, and both the cooler and the low-temperature radiator are connected to the liquid inlet of the liquid-cooled pump. The step of controlling the start and stop of the fan and the liquid-cooled pump according to the ambient temperature and the operating status of the compressor includes:

[0033] If the ambient temperature is less than or equal to the first threshold, control the first control valve to connect the liquid inlet of the low-temperature radiator with the liquid outlet of the liquid-cooled heat exchanger, and control the operation of the liquid-cooled pump.

[0034] If the ambient temperature is greater than the first threshold, the compressor is turned on, and the first control valve is controlled to connect the liquid inlet of the cooler with the liquid outlet of the liquid-cooled heat exchanger, thereby controlling the operation of the liquid-cooled pump.

[0035] If the ambient temperature is greater than the first threshold, the compressor is turned off and the fan is controlled to run.

[0036] In one embodiment, the step of controlling the operation of the liquid cooling pump further includes:

[0037] If the ambient temperature is greater than a second threshold, the fan is controlled to operate, where the second threshold is greater than the first threshold.

[0038] In one embodiment, the vehicle-mounted refrigerator system further includes a device radiator and a second control valve, the device radiator being connected in parallel with the liquid-cooled heat exchanger, and the method further includes:

[0039] Determine the equipment temperature and the operating status of the liquid cooling pump;

[0040] If the device temperature is greater than the third threshold and the liquid cooling pump is turned on, the second control valve is controlled to connect the cooling flow path to the device radiator.

[0041] Thirdly, the vehicle includes an on-board refrigerator system as described in any of the above.

[0042] This application provides an in-vehicle refrigerator system, a control method, and a vehicle. By integrating a dual cooling mechanism of liquid cooling and air cooling, and with a controller controlling the start and stop of the fan and liquid cooling pump based at least on ambient temperature and compressor operating status, the cooling modes can be flexibly switched or combined according to actual needs. This ensures effective heat dissipation even under high heat-end pressure, thus guaranteeing the refrigerator's cooling performance, while reducing energy consumption and operating noise when heat-end pressure is low. Therefore, the in-vehicle refrigerator system proposed in this application provides more diverse cooling modes, adapting to a wider range of operating conditions and improving the operational stability of the refrigerator assembly and the user experience. Attached Figure Description

[0043] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0044] Figure 1 This is a schematic diagram of the structural operation of the vehicle-mounted refrigerator system provided in this application under one mode;

[0045] Figure 2 This is a schematic diagram of the structural operation of the vehicle-mounted refrigerator system provided in this application under one mode;

[0046] Figure 3 This is a schematic diagram of the structural operation of the vehicle-mounted refrigerator system provided in this application under one mode;

[0047] Figure 4 This is a schematic diagram of the structural operation of the vehicle-mounted refrigerator system provided in this application under one mode;

[0048] Figure 5 This is a schematic diagram of the structural operation of the vehicle-mounted refrigerator system provided in this application under one mode;

[0049] Figure 6 This is a schematic diagram of the structural operation of the vehicle-mounted refrigerator system provided in this application under one mode;

[0050] Figure 7 This is a structural schematic diagram of the refrigerator assembly provided in this application.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100. Vehicle refrigerator system; 10. Refrigerator assembly; 11. Cabinet; 111. Insulation layer; 113. Receiving cavity; 13. Refrigeration component; 15. Cooling component; 17. Cooling fins; 19. Circulating fan; 20. Liquid-cooled heat exchanger; 30. Liquid-cooled pump; 40. Air-cooled assembly; 41. Fan; 43. Heat dissipation fins; 50. Air conditioning circuit; 51. Compressor; 53. Air conditioning evaporator; 54. Condenser; 60. Cooler; 61. Equipment radiator; 70. Low-temperature radiator; 80. First control valve; 81. First port; 82. Second port; 83. Third port; 90. Second control valve; 91. Fourth port; 92. Fifth port; 93. Sixth port.

[0053] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0055] With the popularization of new energy vehicles and the development of intelligent driving technology, in-vehicle refrigerators, as a key component for improving driving comfort, are facing increasingly complex application scenarios. In high-temperature environments, in-vehicle refrigerators need to cool rapidly to maintain the freshness of food and beverages, while also preventing temperature fluctuations in the passenger compartment from affecting the driving experience. Traditional air-cooling systems have poor heat dissipation performance under high-temperature conditions, affecting the cooling performance of in-vehicle refrigerators, leading to a significant decrease in cooling efficiency. Furthermore, the continuous operation of the fan generates considerable noise, severely impacting passenger cabin comfort.

[0056] To address the aforementioned issues, this application provides a vehicle-mounted refrigerator system, control method, and vehicle. By controlling the start and stop of the fan and liquid cooling pump based on at least the ambient temperature and the compressor's operating status, the system achieves switching between liquid cooling and air cooling for the vehicle-mounted refrigerator's refrigeration components, effectively improving heat dissipation efficiency and enhancing the cooling performance and energy efficiency of the vehicle-mounted refrigerator system.

[0057] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0058] This application discloses a vehicle that includes an onboard refrigerator system. The vehicle can be a pure electric vehicle or a hybrid electric vehicle.

[0059] Combination Figures 1 to 3 In another aspect, this application proposes a vehicle-mounted refrigerator system 100. The vehicle-mounted refrigerator system 100 includes a refrigerator assembly 10, a heat dissipation assembly, and a controller.

[0060] The refrigerator assembly 10 includes a cabinet 11 and a cooling unit 13. The cabinet 11 may be made of plastic or foam insulation material. The cabinet 11 defines a receiving cavity 113 for users to store items. The cooling unit 13 is the core component in the refrigerator assembly 10 responsible for generating cooling capacity; it may be a thermoelectric cooler or a small compressor unit 51. The cooling unit 13 has a cold end and a hot end. The cold end absorbs heat to lower the internal temperature of the refrigerator, while the hot end dissipates the absorbed heat. Understandably, the heat dissipation effect of the hot end will affect the cooling efficiency of the cold end.

[0061] The heat dissipation assembly includes a liquid cooling circuit and an air-cooled component 40. The liquid cooling circuit refers to the circulation system in the heat dissipation assembly that uses coolant to remove heat. The liquid cooling circuit is connected to the hot end of the cooling component 13 via a liquid-cooled heat exchanger 20 and includes a liquid-cooled pump 30 and a refrigeration flow path. Driven by the liquid-cooled pump 30, the coolant circulates in the liquid cooling circuit, removing heat from the liquid-cooled heat exchanger 20. The refrigeration flow path provides cooling to the coolant, enabling it to exchange heat with the hot end and lower its temperature. A compressor 51 is included in the refrigeration flow path. Alternatively, the refrigeration flow path can be a separate, simple refrigeration cycle, such as a small vapor compression cycle, consisting of basic components like the compressor 51, condenser 54, and expansion valve, used to pre-cool the coolant or directly participate in heat removal. Optionally, the coolant is water.

[0062] The air-cooled component 40 refers to the component in the heat dissipation assembly that uses air convection to remove heat and is connected to the liquid-cooled heat exchanger 20. It also includes a fan 41, which forces airflow to enhance the heat dissipation effect.

[0063] The controller refers to the intelligent control unit of the vehicle-mounted refrigerator system 100. It receives signals from various sensors and outputs commands to the actuators in the system according to preset logic or algorithms. The controller is electrically connected to the fan 41, the liquid cooling pump 30, and the compressor 51. The controller is configured to control the start and stop of the fan 41 and the liquid cooling pump 30 based at least on the ambient temperature and the operating status of the compressor 51.

[0064] For example, when the ambient temperature is high and the compressor 51 is running, the controller activates the liquid cooling pump 30. This causes the compressor 51 to drive the refrigeration flow path to cool the coolant, while the liquid cooling pump 30 drives the coolant through the liquid-cooled heat exchanger 20 to dissipate heat from the hot end. If the ambient temperature rises further, the controller can also control the liquid cooling pump 30 and fan 41 to operate simultaneously, providing both air and liquid cooling to the hot end, thereby effectively improving the heat dissipation effect of the heat dissipation assembly. When the ambient temperature is low, the controller can control the fan 41 to rotate, promoting convection between the hot end, the water-cooled heat exchanger, and the air, thus improving heat dissipation efficiency.

[0065] Thus, the vehicle-mounted refrigerator system 100 of this application integrates both liquid cooling and air cooling mechanisms, and the controller controls the start and stop of the fan 41 and the liquid cooling pump 30 based at least on the ambient temperature and the operating status of the compressor 51, enabling flexible switching or combination of cooling modes according to actual needs. This ensures effective heat dissipation when the heat dissipation pressure at the hot end is high, thereby guaranteeing the refrigerator's cooling effect, and reduces energy consumption and operating noise when the heat dissipation pressure at the hot end is low. Therefore, the vehicle-mounted refrigerator system 100 proposed in this application provides more diverse cooling modes, can adapt to more operating conditions, and improves the operational stability of the refrigerator assembly 10 and the user experience.

[0066] Combination Figure 1 In one embodiment of this application, the refrigeration flow path includes an air conditioning circuit 50 and a cooler 60. The air conditioning circuit 50 includes an air conditioning evaporator 53, which is connected to a compressor 51.

[0067] The air conditioning circuit 50 is the fluid passage in the vehicle used to achieve the refrigeration cycle. Specifically, the air conditioning circuit 50 includes a compressor 51, a condenser 54, an expansion valve, and an air conditioning evaporator 53, which removes heat through the phase change cycle of the refrigerant. The air conditioning evaporator 53 is a heat exchanger in which the refrigerant evaporates and absorbs heat. The air conditioning evaporator 53 can adopt a plate-fin structure to provide high heat exchange efficiency and a compact structure; or it can adopt a tube-fin structure, which has a relatively simple structure and is easy to manufacture.

[0068] The cooler 60 is connected in parallel with the air conditioning compressor 51 and has a subcooling channel that connects to the inlet of the liquid-cooled pump 30. The cooler 60 is a heat exchange device used to exchange heat between the flowing refrigerant and the coolant in the subcooling channel, thereby cooling the coolant in the subcooling channel. Specifically, the cooler 60 can be a plate heat exchanger, which has a compact structure and high heat exchange efficiency; or it can be a coaxial heat exchanger, which is suitable for applications with low flow rates and high pressure differentials.

[0069] In this embodiment, by introducing an air conditioning circuit 50 and connecting its air conditioning evaporator 53 to the compressor 51, the vehicle refrigerator system 100 can utilize the cooling capacity of the vehicle's air conditioning system to provide an efficient and integrated cooling method, avoiding the additional energy consumption and material costs of setting up an independent refrigeration component for the refrigerator assembly 10.

[0070] Combination Figure 4 In some embodiments of this application, the cooling flow path further includes a low-temperature radiator 70 and a first control valve 80.

[0071] The low-temperature radiator 70 is an auxiliary cooling device and can be optionally installed at the front of the vehicle along its length to facilitate airflow. The low-temperature radiator 70 can be a plate-fin heat exchanger, including heat dissipation pipes and fins connected to the heat dissipation pipes. Airflow passes through the fins to carry away the heat transferred from the heat dissipation pipes to the fins, thereby cooling the coolant inside the heat dissipation pipes. Alternatively, the low-temperature radiator 70 can also be a shell-and-tube heat exchanger, in which coolant flows inside the tubes, and heat exchange occurs outside the tubes through a heat-conducting medium to cool the coolant.

[0072] The first control valve 80 is electrically connected to the controller and has a first port 81, a second port 82, and a third port 83. The first control valve 80 is used to switch or open between different fluid paths according to the controller's instructions. For example, the first control valve 80 can be a three-way solenoid valve, which drives the valve core to move by energizing and de-energizing the solenoid coil, thereby changing the direction of fluid flow.

[0073] In this embodiment, the liquid outlet of the low-temperature radiator 70 is connected to the liquid inlet of the liquid-cooled pump 30, the first port 81 is connected to the liquid outlet of the liquid-cooled heat exchanger 20, the second port 82 is connected to the liquid inlet of the cold flow channel, and the third port 83 is connected to the liquid inlet of the low-temperature radiator 70.

[0074] In other words, the first port 81 serves as the inlet, receiving coolant from the liquid-cooled heat exchanger 20; the second port 82 and the third port 83 serve as outlets, guiding the coolant to the subcooling channel or the low-temperature radiator 70, respectively. When the controller sends a specific signal, the first control valve 80 opens the first port 81 and the second port 82, allowing the coolant to flow through the subcooling channel of the cooler 60; when the controller sends another signal, the first control valve 80 opens the first port 81 and the third port 83, allowing the coolant to flow through the low-temperature radiator 70.

[0075] Optionally, when the ambient temperature is below or equal to a first threshold, the controller controls the first port 81 and the third port 83 to conduct, allowing airflow to dissipate heat from the coolant in the low-temperature radiator 70. The coolant then flows to the liquid-cooled heat exchanger 20 to exchange heat with the hot end. This allows for liquid cooling of the hot end without starting the compressor 51, ensuring efficient heat dissipation of the refrigeration component 13 while reducing system energy consumption and operating noise. When the ambient temperature is above the first threshold, the airflow temperature is high, and the airflow in contact with the low-temperature radiator 70 cannot effectively dissipate heat from the coolant in the radiator 70. Therefore, the controller controls the first port 81 and the third port 83 to conduct, allowing the coolant to dissipate heat through the cooler 60, thereby improving the heat dissipation efficiency of the refrigeration component 13 and ensuring the normal operation of the refrigerator assembly 10. This dynamic switching mechanism based on the controller signal enables the vehicle refrigerator system 100 to intelligently select the optimal heat dissipation path according to actual operating conditions, avoiding the limitations of a single heat dissipation mode, improving thermal management efficiency, reducing system energy consumption, and optimizing noise performance, thus enhancing the user experience.

[0076] Combination Figure 5 and Figure 6 In one embodiment, the heat dissipation assembly further includes a device radiator 61. The device radiator 61 is connected to the outlet of the liquid-cooled pump 30 and is connected in parallel with the liquid-cooled heat exchanger 20.

[0077] The equipment radiator 61 is a heat exchange device used to absorb heat generated during the operation of on-board equipment such as power batteries, drive motors, inverters, and on-board chargers. The equipment radiator 61 can be implemented in various forms. For example, it can be designed as a plate heat exchanger, where the coolant exchanges heat directly or indirectly with the surface of the equipment being cooled; or it can be a tube-fin heat exchanger, where the coolant flows in the pipes and the fins increase the heat exchange area, thereby efficiently removing heat from the equipment.

[0078] By adding a device radiator 61 to the heat dissipation assembly and connecting it to the outlet of the liquid-cooled pump 30 and in parallel with the liquid-cooled heat exchanger 20, the coolant pumped by the liquid-cooled pump 30 can be distributed between the liquid-cooled heat exchanger 20 and the device radiator 61 after flowing out. When the vehicle equipment needs cooling, the coolant can flow efficiently through the device radiator 61, carrying away the heat it generates, thereby achieving effective thermal management of the vehicle equipment. At the same time, since the device radiator 61 and the liquid-cooled heat exchanger 20 are connected in parallel, the cooling of the vehicle refrigerator's hot end and the cooling of the vehicle equipment can be carried out independently without interference, avoiding the problem of mutual restriction of cooling capacity that may occur with a series structure.

[0079] Furthermore, the heat dissipation assembly also includes a second control valve 90. The second control valve 90 is electrically connected to a controller and includes a fourth port 91, a fifth port 92, and a sixth port 93. The fourth port 91 is connected to the liquid outlet of the liquid-cooled heat exchanger 20, the fifth port 92 is connected to the liquid outlet of the device radiator 61, and the sixth port 93 is connected to the liquid inlet of the refrigeration flow path. The second control valve 90 is configured to selectively activate either the fifth port 92 or the sixth port 93, or the fourth port 91 or the sixth port 93, based on a control signal from the controller.

[0080] The second control valve 90 can be implemented in various forms. For example, the second control valve 90 can be a three-way solenoid valve, which controls the switching of the valve core through an electrical signal from the controller, thereby changing the flow direction of the coolant. Alternatively, it can be an electric ball valve, which drives the ball to rotate through a motor to connect different ports. The fourth port 91, the fifth port 92, and the sixth port 93 are interfaces on the second control valve 90 used to connect different fluid pipelines. Specifically, the fourth port 91 is used to receive coolant from the liquid-cooled heat exchanger 20, the fifth port 92 is used to receive coolant from the equipment radiator 61, and the sixth port 93 is used to deliver coolant to the inlet end of the refrigeration flow path.

[0081] The second control valve 90 is configured to selectively open the fifth port 92 and the sixth port 93, or the fourth port 91 and the sixth port 93, based on the controller's control signal. The controller sends a control signal to drive the second control valve 90 to switch between different coolant return paths.

[0082] When the controller determines that the equipment radiator 61 needs to be used preferentially to cool the vehicle-mounted equipment, the second control valve 90 is instructed to switch to the mode that connects the fifth port 92 and the sixth port 93. Coolant flows out of the equipment radiator 61, enters the second control valve 90 through the fifth port 92, and then flows to the cooling path through the sixth port 93. When the controller determines that the hot end of the cooling component 13 needs to be cooled, or when the equipment radiator 61 does not need additional cooling, the second control valve 90 is instructed to switch to the mode that connects the fourth port 91 and the sixth port 93. Coolant flows out of the liquid-cooled heat exchanger 20, enters the second control valve 90 through the fourth port 91, and then flows to the cooling path through the sixth port 93.

[0083] Thus, the introduction of the second control valve 90 enables the on-board refrigerator system 100 to activate the radiator 61 when the on-board equipment temperature is high and requires additional cooling. This allows the controller to direct the second control valve 90 to activate the radiator 61 for heat dissipation, ensuring stable equipment operation. When the on-board equipment temperature is low or the liquid-cooled heat exchanger 20 is needed to dissipate heat from its hot end, the controller can direct the second control valve 90 to activate the liquid-cooled heat exchanger 20, improving the heat dissipation efficiency of the cooling component 13 and ensuring the cooling effect of the refrigerator assembly 10. This dynamic selective activation mechanism allows the on-board refrigerator system 100 to flexibly adapt to different operating conditions and heat dissipation needs, avoiding unnecessary cooling path operation, reducing energy loss, and significantly improving the thermal management efficiency and energy efficiency ratio of the entire on-board refrigerator system 100, while also helping to extend the service life of system components.

[0084] Optionally, in one embodiment, the second control valve 90 is configured to connect the sixth port 93 to a portion of the fifth port 92 and a portion of the fourth port 91 based on a control signal from the controller.

[0085] In other words, in addition to connecting all of the sixth port 93 to the fifth port 92 or the fourth port 91, the second control valve 90 can also connect the sixth port 93 to a portion of the fifth port 92 and a portion of the fourth port 91 at the same time. This allows the coolant flowing out of the liquid-cooled heat exchanger 20 and the coolant flowing out of the equipment radiator 61 to enter the refrigeration flow path for cooling at the same time. This enables the liquid-cooled circuit to cool the equipment radiator 61 and the coolant in the liquid-cooled heat exchanger 20 simultaneously, thereby dissipating heat from the vehicle-mounted equipment and the hot end.

[0086] For example, the second control valve 90 can be a proportional solenoid valve, which receives pulse width modulation signals or analog current and voltage signals output by the controller to precisely control the opening degree of the valve core, thereby achieving continuous regulation of fluid flow, rather than simply being fully open or fully closed. Alternatively, the second control valve 90 can also be a stepper motor driven regulating valve, which precisely controls the valve opening degree through the stepper motor to achieve fine regulation of fluid flow.

[0087] In one embodiment, the device radiator 61 in the heat dissipation assembly includes a battery cooler 60 and an electric drive cooler 60. The battery cooler 60 is connected to the liquid outlet of the liquid-cooled pump 30 and the fifth port 92; the electric drive cooler 60 is connected in parallel or in series with the battery cooler 60.

[0088] The battery cooler 60 is a heat exchange device specifically designed to cool vehicle battery packs. Batteries generate a significant amount of heat during charging and discharging; if this heat is not dissipated promptly, it will affect battery performance and lifespan. The battery cooler 60 is connected to the outlet of the liquid cooling pump 30 via piping, ensuring that coolant can directly enter the battery cooler 60 from the pump 30 to remove the heat generated by the battery. The coolant then flows out of the battery cooler 60 and connects to the fifth port 92, ultimately joining the liquid cooling circuit of the heat dissipation assembly. The battery cooler 60 can be implemented in various ways; for example, a cold plate type cooler 60 can be used.

[0089] The electric drive cooler 60 is a heat exchange device specifically designed for cooling vehicle electric drive systems such as motors and inverters. The electric drive cooler 60 can adopt various structures. For example, it can use a shell-and-tube heat exchanger, where the coolant flows between the inner and outer shells to exchange heat with the heat source of the electric drive components; or it can use a plate heat exchanger, where a series of thin metal plates form flow channels to achieve efficient heat exchange.

[0090] The electric drive cooler 60 and the battery cooler 60 can be connected in parallel or in series. When the electric drive cooler 60 and the battery cooler 60 are connected in parallel, the coolant is split from the outlet of the liquid cooling pump 30, with one part entering the battery cooler 60 and the other part entering the electric drive cooler 60. Then, the two coolants merge inside the equipment radiator 61 and flow to the fifth port 92. This parallel configuration allows the battery cooler 60 and the electric drive cooler 60 to obtain relatively low-temperature coolant independently, and their cooling effects do not affect each other, making it suitable for scenarios requiring independent and precise temperature control. When the electric drive cooler 60 and the battery cooler 60 are connected in series, the coolant flows sequentially from the outlet of the liquid cooling pump 30 through the battery cooler 60 and the electric drive cooler 60 (or vice versa) and then flows to the fifth port 92. This series configuration is relatively simple in structure, requires fewer pipes, and can achieve tiered heat utilization, such as cooling components with higher temperature requirements first and then cooling components with relatively lower temperature requirements, thereby improving the overall energy efficiency of the system.

[0091] Through the above technical solution, the equipment radiator 61 is subdivided into a battery cooler 60 and an electric drive cooler 60, allowing them to be connected in parallel or series. This effectively solves the problem of the cooler 60 having a single structure and being unable to efficiently handle the cooling needs of different equipment. This modular design enables the system to provide customized cooling solutions for the respective thermal characteristics of the battery and electric drive systems, thereby significantly improving thermal management efficiency and system integration. The battery cooler 60 is directly connected to the outlet end of the liquid-cooled pump 30 and the fifth port 92, ensuring rapid and effective heat removal from the battery. At the same time, the parallel or series configuration of the electric drive cooler 60 and the battery cooler 60 provides the controller with flexible cooling path selection. For example, in parallel mode, independent and precise temperature control of the battery and electric drive can be achieved, avoiding mutual interference; in series mode, heat can be utilized in a tiered manner, improving the energy utilization rate of the coolant. This design not only enhances the adaptability and reliability of the vehicle thermal management system to multiple operating conditions, but also optimizes the system layout and improves space utilization, thereby providing a more stable and efficient operating environment for the vehicle refrigerator system 100.

[0092] Of course, it is understandable that the equipment radiator 61 also includes other structural coolers 60, which can be connected in series or in parallel with the battery cooler 60 and the electric drive cooler 60, which will not be elaborated here.

[0093] Combination Figure 7 In this embodiment of the application, the air-cooled assembly 40 further includes heat dissipation fins 43, which are disposed between the fan 41 and the liquid-cooled heat exchanger 20.

[0094] Specifically, the heat dissipation fins 43 are structures used to increase the heat exchange surface area, typically made of materials with good thermal conductivity, such as aluminum, copper, or their alloys. Their function is to more effectively transfer heat from the liquid-cooled heat exchanger 20 to the surrounding air. The heat dissipation fins 43 can adopt various structural forms, such as flat fins, corrugated fins, louvered fins, or needle-shaped fins, to adapt to different heat dissipation requirements and space constraints. The heat dissipation fins 43 are located between the fan 41 and the liquid-cooled heat exchanger 20, allowing the airflow generated by the fan 41 to flow directly and effectively through the heat dissipation fins 43, ensuring sufficient contact between the airflow and the heat dissipation fins 43, thereby improving the efficiency of heat transfer from the liquid-cooled heat exchanger 20 to the air through the heat dissipation fins 43.

[0095] Thus, by adding heat dissipation fins 43 to the air-cooled assembly 40 and placing them between the fan 41 and the liquid-cooled heat exchanger 20, the heat dissipation fins 43 increase the surface area for heat exchange, allowing the heat transferred from the liquid-cooled heat exchanger 20 to be exchanged more fully with the air. Simultaneously, the location of the heat dissipation fins 43 between the fan 41 and the liquid-cooled heat exchanger 20 ensures that the airflow generated by the fan 41 can pass directly and efficiently through the heat dissipation fins 43, thereby enhancing the convective heat transfer effect, improving the heat dissipation efficiency of the air-cooled assembly 40, and contributing to improving the working efficiency of the cooling component 13 and extending its service life.

[0096] Combination Figure 7 In some embodiments, the refrigerator assembly 10 includes a cabinet 11 and a cooling conduit assembly. The cabinet 11 has an insulation layer 111 that defines a receiving cavity 113, and a cooling component 13 is disposed on the insulation layer 111. The cooling conduit assembly includes a cooling conduit 15, cooling conduit fins 17, and a circulating fan 19. One end of the cooling conduit 15 contacts the cold end of the cooling component 13, and the other end contacts the cooling conduit fins 17. The circulating fan 19 is electrically connected to a controller and is located within the receiving cavity 113.

[0097] The housing 11 is the main structure of the vehicle-mounted refrigerator system 100, used to support and protect internal components and provide storage space. The insulation layer 111 is designed to isolate the interior of the housing 11 from heat exchange with the external environment, thereby maintaining a low temperature within the containment cavity 113. The insulation layer 111 can be implemented using various materials and structures; for example, it can be formed by filling the spaces between the walls of the housing 11 with foamed material. The cooling component 13 can be tightly fitted to or embedded within the insulation layer 111, optimizing the heat conduction path between the cooling component 13 and the housing 11, reducing cold loss, and contributing to improved cooling efficiency and space utilization.

[0098] The cooling component is a key part used to transfer the cold energy generated by the cooling element 13 to the interior of the receiving cavity 113. The cooling component 15 can be a metal plate such as aluminum alloy or copper, which uses its good thermal conductivity to conduct the cold energy away from the cold end of the cooling element 13; alternatively, it can be a flexible thermally conductive material such as thermally conductive gel or thermally conductive pads to ensure close contact and efficient heat transfer between the cooling component 15 and the cold end of the cooling element 13. Cooling fins 17 are located within the receiving cavity 113, and their shape is not limited. The cooling fins 17 are used to diffuse the cold energy transferred from the cooling component 15 into the receiving cavity 113. The cooling fins 17 can increase the contact area between the air in the receiving cavity 113 and the cooling component, improving the utilization efficiency of the cold energy and the temperature uniformity within the receiving cavity 113. The circulating fan 19 is used to force airflow within the receiving cavity 113 to promote the uniform distribution of cold energy within the receiving cavity 113 and accelerate the cooling process of the item. The circulating fan 19 can be an axial fan 41 or a centrifugal fan 41, depending on the structure of the housing 113 and the airflow organization requirements.

[0099] Through the above technical solutions, the refrigerator assembly 10, by optimizing its structural design, effectively solves the problems of uneven heat distribution at the cold end and poor internal airflow, significantly improving cooling efficiency and user comfort. Specifically, the cabinet 11 and its insulation layer 111 ensure good thermal insulation of the internal space, reducing the intrusion of external heat and creating a stable working environment for the refrigeration component 13. The refrigeration component 13 is located in the insulation layer 111, optimizing the cold energy transfer path and reducing energy loss. The cold-conducting component 15 in the cold-conducting assembly directly contacts the cold end of the refrigeration component 13, and the cold-conducting fins 17 are at least partially located within the receiving cavity 113, enabling efficient and uniform transfer of cold energy to all corners of the receiving cavity 113, avoiding local overcooling or overheating, thereby solving the problem of uneven heat distribution at the cold end. Meanwhile, the circulating fan 19, located within the receiving cavity 113 and electrically controlled by the controller, forces the air within the cavity to circulate, breaking the stagnant airflow characteristic of traditional refrigerators. This allows cold air to spread quickly and evenly throughout the entire receiving cavity 113, accelerating the cooling speed of items and effectively avoiding noise problems caused by poor airflow. This not only improves cooling efficiency but also significantly enhances the user experience through uniform temperature distribution and reduced noise.

[0100] Other aspects of this application also propose a control method, which includes:

[0101] S1: Determine the ambient temperature and the operating status of compressor 51;

[0102] S2: Control the start and stop of fan 41 and liquid cooling pump 30 according to the determined ambient temperature and the operating status of compressor 51.

[0103] Specifically, the steps for determining the ambient temperature and the operating status of compressor 51 aim to obtain real-time operating information of the ambient temperature and compressor 51. For example, the ambient temperature can be monitored in real time by placing a temperature sensor outside the vehicle or near the refrigerator assembly 10. This temperature sensor can be a thermistor, thermocouple, or infrared temperature sensor, etc., and its output signal is converted into a digital signal and transmitted to the controller for processing. Regarding the operating status of compressor 51, the start / stop status and operating load of compressor 51 can be determined by monitoring the power supply current, voltage, or control signals of compressor 51. For example, the current flowing through compressor 51 can be detected by a current sensor; if the current is greater than a preset threshold, compressor 51 is considered to be running. Furthermore, the actual operating condition of compressor 51 can also be reflected by parameters such as compressor speed, exhaust temperature, or pressure.

[0104] For example, when the ambient temperature is high and the compressor 51 is running, the controller activates the liquid cooling pump 30. This causes the compressor 51 to drive the refrigeration flow path to cool the coolant, while the liquid cooling pump 30 drives the coolant through the liquid-cooled heat exchanger 20 to dissipate heat from the hot end. If the ambient temperature rises further, the controller can also control the liquid cooling pump 30 and fan 41 to operate simultaneously, providing both air and liquid cooling to the hot end, thereby effectively improving the heat dissipation effect of the heat dissipation assembly. When the ambient temperature is low, the controller can control the fan 41 to rotate, promoting convection between the hot end, the water-cooled heat exchanger, and the air, thus improving heat dissipation efficiency.

[0105] Thus, the control scheme of this application controls the start and stop of the fan 41 and the liquid cooling pump 30 based at least on the ambient temperature and the operating status of the compressor 51, and can flexibly switch or combine heat dissipation modes according to actual needs. This ensures heat dissipation effect when the heat dissipation pressure at the hot end is high, thereby ensuring the cooling effect of the refrigerator, and reduces heat dissipation energy consumption and operating noise when the heat dissipation pressure at the hot end is low. Therefore, the vehicle refrigerator system 100 proposed in this application embodiment has more cooling modes, can adapt to more operating conditions, and improves the operational stability of the refrigerator assembly 10 and the user experience.

[0106] Combination Figures 2 to 4 In one embodiment, the vehicle refrigerator system 100 further includes a cooler 60, a low-temperature radiator 70, and a first control valve 80. The cooler 60 is connected to the compressor 51, and both the cooler 60 and the low-temperature radiator 70 are connected to the liquid inlet of the liquid cooling pump 30.

[0107] The steps for controlling the start and stop of fan 41 and liquid cooling pump 30 based on ambient temperature and the operating status of compressor 51 include:

[0108] S21: If the ambient temperature is less than or equal to the first threshold, control the first control valve 80 to connect the liquid inlet of the low-temperature radiator 70 with the liquid outlet of the liquid-cooled heat exchanger 20, and control the operation of the liquid-cooled pump 30.

[0109] S22: If the ambient temperature is greater than the first threshold, the compressor 51 is turned on, and the first control valve 80 is controlled to connect the liquid inlet of the cooler 60 with the liquid outlet of the liquid-cooled heat exchanger 20, and the liquid-cooled pump 30 is controlled to run.

[0110] S23: If the ambient temperature is greater than the first threshold, the compressor 51 is turned off and the fan 41 is controlled to run.

[0111] The explanations of the cooler 60, the low-temperature radiator 70, and the first control valve 80 are as described above. In this embodiment, "ambient temperature less than or equal to the first threshold" indicates that the system is operating under relatively low ambient temperature conditions. The first threshold is a preset temperature value, such as 10°C or 25°C, used to distinguish different ambient heat load conditions and guide the system to select an appropriate heat dissipation strategy. Under this condition, the first control valve 80 is controlled to connect the liquid inlet of the low-temperature radiator 70 to the liquid outlet of the liquid-cooled heat exchanger 20. This step means that the controller, based on the ambient temperature, determines that under low-temperature conditions, it controls the first control valve 80 to guide the coolant discharged from the liquid-cooled heat exchanger 20 to the low-temperature radiator 70 for cooling. This allows the system to utilize the efficient heat dissipation characteristics of the low-temperature radiator 70 in low-temperature environments, reducing energy consumption. Simultaneously, the liquid cooling pump 30 is controlled to operate. This step means that the controller issues a command to start and maintain the operation of the liquid cooling pump 30, thereby driving the coolant to circulate in the liquid cooling circuit, carrying away heat from the hot end of the cooling component 13 and transferring it to the heat dissipation device.

[0112] When the ambient temperature exceeds the first threshold and compressor 51 starts, it indicates that the system is operating at a high ambient temperature and requires strong cooling. Under this condition, compressor 51 is in operation. At this time, the first control valve 80 connects the inlet of cooler 60 to the outlet of liquid-cooled heat exchanger 20. Under the condition of high temperature and compressor 51 being on, the controller directs the coolant discharged from liquid-cooled heat exchanger 20 to cooler 60 for cooling by controlling the first control valve 80. Since cooler 60 is connected to compressor 51, the cooling capacity of compressor 51 can be used to subcool the coolant, thereby significantly improving heat dissipation efficiency. At the same time, the liquid cooling pump 30 is controlled to operate to ensure effective circulation of coolant.

[0113] If "the ambient temperature is greater than the first threshold, the compressor 51 is shut down", it means that the system is in a condition where the ambient temperature is high but the compressor 51 stops running. At this time, the controller issues a command to start and maintain the operation of the fan 41 in the air-cooled component 40, and dissipates heat from the liquid-cooled heat exchanger 20 to the environment through forced convection.

[0114] Through the above technical solution, this application realizes the dynamic switching of the cooling flow path of the vehicle refrigerator system 100 under different ambient temperatures and compressor 51 operating states, effectively solving the problem of heat dissipation path optimization. Specifically, when the ambient temperature is low, the system prioritizes the low-temperature radiator 70 path, utilizing its efficient heat dissipation capacity in low-temperature environments to avoid unnecessary energy consumption and improve energy efficiency under low-temperature conditions. When the ambient temperature is high and the compressor 51 is on, the system intelligently switches to the cooler 60 path, using the cooling capacity of the compressor 51 to subcool the coolant, significantly enhancing the heat dissipation effect and ensuring cooling performance under high temperature and high load conditions. When the ambient temperature is high but the compressor 51 is off, the fan 41 is activated for heat dissipation, preventing heat from being difficult to dissipate and ensuring the normal operation of the refrigerator assembly 10. This allows the vehicle refrigerator system 100 to flexibly select the optimal heat dissipation path according to actual operating conditions, which not only improves thermal management efficiency and reduces energy consumption, but also enhances the system's adaptability to complex environments, thereby improving the user experience.

[0115] This application further proposes that, after the step of controlling the operation of the liquid cooling pump 30, the following steps are also included:

[0116] S24: If the ambient temperature is greater than the second threshold, control the fan 41 to run. The second threshold is greater than the first threshold.

[0117] Specifically, after the liquid cooling pump 30 has been started and is running, it is further determined whether the fan 41 is needed for auxiliary heat dissipation. The controller can acquire ambient temperature data in real time through a connected temperature sensor and compare it with a preset second threshold. The second threshold can be fixed in the controller or configured via software according to system design, cooling requirements, and energy efficiency targets. In addition, the second threshold can also be dynamically adjusted, for example, calculated in real time by an algorithm based on factors such as the cooling load of the refrigerator assembly 10 and the operating power of the compressor 51, to achieve more refined thermal management.

[0118] The second threshold is greater than the first threshold and is a preset ambient temperature value, such as the first threshold being set to 25℃ and the second threshold being set to 30℃. When the actual ambient temperature exceeds the second threshold, it indicates that the ambient temperature is too high, and the fan 41 is activated to enhance the heat dissipation effect. The fan 41 accelerates the heat exchange between the liquid-cooled heat exchanger 20 and the surrounding air through forced convection, thereby more effectively removing the heat from the hot end of the cooling component 13.

[0119] Thus, during the operation of the vehicle-mounted refrigerator system 100, when the ambient temperature is high, the controller further determines whether the ambient temperature exceeds a second threshold, in addition to the liquid cooling pump 30 already being operational. Since the second threshold is greater than the first threshold, this means that the fan 41 is only activated for auxiliary cooling when the ambient temperature rises significantly and the liquid cooling pump 30 alone is insufficient to meet the heat dissipation requirements. This tiered control strategy avoids activating the fan 41 when the ambient temperature is only slightly above the first threshold, thereby reducing unnecessary energy consumption and noise generation. Simultaneously, when the ambient temperature is indeed high, the activation of the fan 41 effectively enhances the heat dissipation capacity of the liquid-cooled heat exchanger 20, accelerates the removal of heat from the hot end of the cooling component 13, and maintains the stable cooling performance of the refrigerator assembly 10. In this way, while ensuring efficient heat dissipation, the system's energy efficiency and noise control are optimized, the user experience is improved, and the cooling effect of the refrigerator and the operational stability of the vehicle-mounted refrigerator system 100 are ensured.

[0120] Combination Figure 5 and Figure 6 In some embodiments, the method further includes:

[0121] S30: Determine the equipment temperature and the operating status of the liquid cooling pump 30.

[0122] Determining the equipment temperature refers to directly measuring it by installing temperature sensors (such as thermistors and thermocouples) at key locations on the equipment (such as battery packs, electric drive motors, inverters, etc.), or obtaining existing temperature data through the vehicle's controller or battery management system. Determining the operating status of the liquid cooling pump 30 refers to determining its start / stop by monitoring the power supply status or drive signal of the liquid cooling pump 30, or obtaining its operating status through feedback signals inside the liquid cooling pump 30.

[0123] S31: If the equipment temperature is greater than the third threshold and the liquid cooling pump 30 is turned on, control the second control valve 90 to connect the cooling flow path to the equipment radiator 61.

[0124] The third threshold is a critical temperature value used to determine whether the equipment requires additional cooling. This threshold is typically set based on the equipment's safe operating temperature range, performance degradation curve, and system thermal management strategy. When the equipment temperature exceeds this threshold and the liquid cooling pump 30 has started, the controller sends a command to the second control valve 90, allowing the coolant to flow through the equipment radiator 61 to remove the heat generated by the equipment. The second control valve 90 can completely switch the flow path and adjust the coolant flow rate through the equipment radiator 61, thereby achieving fine-grained control and balancing cooling effect and energy consumption.

[0125] This embodiment effectively solves the problem of insufficient heat dissipation when the internal equipment of the vehicle system overheats by introducing a device radiator 61 and a second control valve 90, and by combining the device temperature and the operating status of the liquid cooling pump 30 for intelligent control. Specifically, when the temperature of the vehicle equipment (such as the battery, electric drive, etc.) rises and exceeds a preset third threshold, and the liquid cooling pump 30 is already running due to the refrigerator's cooling needs, the controller can also intelligently direct some or all of the coolant to the device radiator 61 through the second control valve 90, prioritizing the cooling of high-temperature equipment. This allows the vehicle refrigerator system 100 to meet its own cooling needs while also taking into account the heat dissipation needs of other heat-generating equipment in the vehicle, avoiding performance degradation or damage caused by overheating. In addition, the parallel design of the device radiator 61 and the liquid cooling heat exchanger 20 ensures that the cooling capacity can be allocated independently or collaboratively, improving the overall efficiency and flexibility of the thermal management system. Through precise control of the coolant flow rate, the system can optimize energy consumption and improve the reliability and multi-condition adaptability of the entire vehicle refrigerator system 100 while ensuring the safe operation of the equipment.

[0126] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0127] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A vehicle-mounted refrigerator system, characterized in that, include: A refrigerator assembly, including a refrigeration component having a cold end and a hot end; A heat dissipation assembly includes a liquid cooling circuit and an air-cooling component. The liquid cooling circuit includes a liquid-cooled heat exchanger, a liquid-cooled pump, and a cooling flow path connected in series. The liquid-cooled heat exchanger is connected to the hot end. The cooling flow path includes a compressor. The air-cooling component is connected to the liquid-cooled heat exchanger and includes a fan. The controller, electrically connected to the fan, the liquid cooling pump, and the compressor, is configured to control the start and stop of the fan and the liquid cooling pump based at least on the ambient temperature and the operating status of the compressor.

2. The vehicle-mounted refrigerator system according to claim 1, characterized in that, The cooling flow path includes: An air conditioning circuit, including an air conditioning evaporator connected to the compressor; and A cooler, connected in parallel with the air conditioner evaporator, has a subcooling channel that connects to the inlet of the liquid-cooled pump.

3. The vehicle-mounted refrigerator system according to claim 2, characterized in that, The cooling flow path also includes: The low-temperature radiator has its outlet connected to the inlet of the liquid cooling pump; and A first control valve, electrically connected to the controller, has a first port, a second port, and a third port. The first port is connected to the liquid outlet of the liquid-cooled heat exchanger, the second port is connected to the liquid inlet of the subcooling channel, and the third port is connected to the liquid inlet of the low-temperature radiator. The first control valve is configured to selectively open the first port and the second port, or the first port and the third port, based on the control signal from the controller.

4. The vehicle-mounted refrigerator system according to claim 1, characterized in that, The heat dissipation assembly also includes: The equipment radiator is connected to the outlet end of the liquid-cooled pump and is connected in parallel with the liquid-cooled heat exchanger.

5. The vehicle-mounted refrigerator system according to claim 4, characterized in that, The heat dissipation assembly also includes: The second control valve, electrically connected to the controller, includes a fourth port, a fifth port, and a sixth port. The fourth port is connected to the liquid outlet of the liquid-cooled heat exchanger, the fifth port is connected to the liquid outlet of the equipment radiator, and the sixth port is connected to the liquid inlet of the refrigeration flow path. The second control valve is configured to selectively open the fifth port and the sixth port, or the fourth port and the sixth port, based on the control signal from the controller.

6. The vehicle-mounted refrigerator system according to claim 5, characterized in that, The second control valve is configured to connect the sixth port to a portion of the fifth port and a portion of the fourth port based on the control signal from the controller.

7. The vehicle-mounted refrigerator system according to claim 5, characterized in that, The device heat sink includes: A battery cooler, connecting the outlet of the liquid-cooled pump to the fifth port; and An electric drive cooler is connected in parallel or in series with the battery cooler.

8. The vehicle-mounted refrigerator system according to claim 1, characterized in that, The air-cooling component also includes: Heat dissipation fins are disposed between the fan and the liquid-cooled heat exchanger.

9. The vehicle-mounted refrigerator system according to any one of claims 1 to 8, characterized in that, The refrigerator assembly includes: The housing has an insulation layer defining a receiving cavity, and the cooling component is disposed within the insulation layer; and The cooling assembly includes a cooling element, cooling fins, and a circulating fan. The cooling element passes through the insulation layer and contacts the cold end of the cooling element. The cooling fins contact the cooling element and are at least partially located within the receiving cavity. The circulating fan is electrically connected to the controller and is located within the receiving cavity.

10. A control method, characterized in that, For a vehicle-mounted refrigerator system as described in any one of claims 1 to 9, the method comprises: Determine the ambient temperature and the compressor's operating status; The start and stop of the fan and the liquid cooling pump are controlled according to the ambient temperature and the operating status of the compressor.

11. The control method according to claim 10, characterized in that, The vehicle-mounted refrigerator system also includes a cooler, a low-temperature radiator, and a first control valve. The cooler is connected to the compressor, and both the cooler and the low-temperature radiator are connected to the liquid inlet of the liquid-cooled pump. The step of controlling the start and stop of the fan and the liquid-cooled pump according to the ambient temperature and the operating status of the compressor includes: If the ambient temperature is less than or equal to the first threshold, control the first control valve to connect the liquid inlet of the low-temperature radiator with the liquid outlet of the liquid-cooled heat exchanger, and control the operation of the liquid-cooled pump. If the ambient temperature is greater than the first threshold, the compressor is turned on, and the first control valve is controlled to connect the liquid inlet of the cooler with the liquid outlet of the liquid-cooled heat exchanger, thereby controlling the operation of the liquid-cooled pump. If the ambient temperature is greater than the first threshold, the compressor is turned off and the fan is controlled to run.

12. The control method according to claim 11, characterized in that, Following the step of controlling the operation of the liquid cooling pump, the following is also included: If the ambient temperature is greater than a second threshold, the fan is controlled to operate, where the second threshold is greater than the first threshold.

13. The control method according to claim 11, characterized in that, The vehicle-mounted refrigerator system further includes a device radiator and a second control valve, wherein the device radiator is connected in parallel with the liquid-cooled heat exchanger, and the method further includes: Determine the equipment temperature and the operating status of the liquid cooling pump; If the temperature of the device is greater than the third threshold and the liquid cooling pump is turned on, the second control valve is controlled to connect the cooling flow path to the device radiator.

14. A vehicle, characterized in that, Including the vehicle refrigerator system as described in any one of claims 1 to 9.

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