Energy management system, energy management method and vehicle

Abstract

The invention relates to an energy management system, an energy management method and a vehicle, and the system comprises a first energy exchange end which is set as a vehicle-mounted refrigerator; the second energy exchange end is arranged as a heat demand end or a cold demand end on the vehicle, and a working medium loop is established between the second energy exchange end and the first energy exchange end; and the working medium drive is used for controlling the liquid cooling working medium in the working medium loop to execute energy exchange with the first energy exchange end and controlling the liquid cooling working medium in the working medium loop to execute energy exchange with the second energy exchange end, so that the energy exchange efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to an energy management system, an energy management method, and a vehicle. Background Art

[0002] With the development of vehicle technology and the improvement of users' living standards, vehicles are gradually equipped with a variety of functions. Among them, car refrigerators are a typical product of the upgrading of automobile consumption. More and more vehicles are equipped with car refrigerators. However, there is currently no energy exchange between car refrigerators and other heat demanding devices in the vehicle, resulting in low energy utilization of the vehicle. Summary of the Invention

[0003] Based on this, the present application provides an energy management system, an energy management method and a vehicle to improve energy utilization.

[0004] In one aspect, an energy management system is provided, the system comprising: The first energy exchange end is configured as a vehicle refrigerator; The second energy exchange end is set as a heat demand end or a cold demand end on the vehicle, and a working medium circuit is established between the first energy exchange end and the second energy exchange end; Working medium drive controls the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controls the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end.

[0005] In one embodiment, the vehicle refrigerator includes a refrigerator body, an air cooling mechanism, a refrigeration device and a liquid cooling mechanism, the refrigeration device includes a first end and a second end, the refrigerator body, the air cooling mechanism, the second end, the first end and the liquid cooling mechanism are arranged in sequence, the first end exchanges energy with the liquid cooling working medium in the working medium circuit through the liquid cooling mechanism, and the second end exchanges energy with the refrigerator body through the air cooling mechanism.

[0006] In one embodiment, the energy management system also includes a first heat exchanger and a second heat exchanger, the second energy exchange end is the electric drive end, a cooling module is connected downstream of the electric drive end, the primary side of the first heat exchanger is the working fluid circuit between the electric drive end and the vehicle refrigerator, the secondary side of the first heat exchanger is the electric drive end, the primary side of the second heat exchanger is the first cold source, and the secondary side of the second heat exchanger is the working fluid circuit between the electric drive end and the vehicle refrigerator.

[0007] In one embodiment, the energy management system also includes a third heat exchanger, the second energy exchange end is a refrigeration mechanism, and the refrigeration mechanism is provided with an evaporation end, the evaporation end forms the primary side of the third heat exchanger, and the secondary side of the third heat exchanger is the working fluid circuit between the evaporation end and the vehicle refrigerator.

[0008] In one embodiment, the energy management system also includes a fourth heat exchanger, the second energy exchange end is a refrigeration mechanism, a condensation end is provided on the refrigeration mechanism, the primary side of the fourth heat exchanger is the refrigerant of the condensation end, and the secondary side of the fourth heat exchanger is the working fluid circuit between the condensation end and the vehicle refrigerator.

[0009] In one embodiment, the energy management system further includes a fifth heat exchanger, the second energy exchange end is a battery module, the primary side of the fifth heat exchanger is a working fluid circuit between the battery module and the vehicle refrigerator, and the secondary side of the fifth heat exchanger is the battery module.

[0010] In another aspect, an energy management method is provided, the method comprising: Determining an onboard refrigerator on the vehicle as a first energy exchange end, and determining a heat demand end or a cold demand end on the vehicle as a second energy exchange end, and establishing a working fluid circuit between the first energy exchange end and the second energy exchange end; The liquid-cooled working medium in the working medium circuit is controlled to perform energy exchange with the first energy exchange end, and the liquid-cooled working medium in the working medium circuit is controlled to perform energy exchange with the second energy exchange end.

[0011] In one embodiment, the second energy exchange end is an electric drive end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end, includes: delivering a first liquid cooling medium from the first end of the vehicle refrigerator to the electric drive end, and controlling the first liquid cooling medium to exchange energy with the electric drive end, so as to remove heat from the electric drive end through the first liquid cooling medium; delivering the first liquid-cooling medium after energy exchange with the electric drive end to a cooling module downstream of the electric drive end, and controlling the first liquid-cooling medium to exchange energy with the cooling module so as to cool the first liquid-cooling medium through the cooling module; The first liquid-cooling medium after the temperature reduction treatment is transported to the first end, and the first liquid-cooling medium is controlled to exchange energy with the first end so that the heat of the first end is removed by the first liquid-cooling medium, or the heat of the first liquid-cooling medium is absorbed by the first end.

[0012] In one embodiment, the second energy exchange end is an evaporation end of a refrigeration mechanism, the vehicle refrigerator is in a cooling mode, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end, includes: delivering the second liquid-cooling medium at the first end of the vehicle refrigerator to the evaporation end, controlling the second liquid-cooling medium to exchange energy with the evaporation end, so as to cool the second liquid-cooling medium through the evaporation end; The second liquid-cooled working medium after the temperature reduction treatment is delivered to the first end, and the second liquid-cooled working medium is controlled to exchange energy with the first end so as to remove heat from the first end through the second cold liquid working medium.

[0013] In one embodiment, the second energy exchange end is a condensing end of a refrigeration mechanism, the vehicle refrigerator is in a heating mode, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end, includes: transporting the third liquid cooling medium at the first end of the vehicle refrigerator to the condensing end, and using the third liquid cooling medium as the condensing medium at the condensing end; Controlling the third liquid-cooling medium to exchange energy with the refrigerant at the condensing end, so as to increase the temperature of the third liquid-cooling medium by the refrigerant at the condensing end; The third liquid-cooling medium after the temperature increase process is delivered to the first end, and the third liquid-cooling medium is controlled to exchange energy with the first end so as to absorb the heat of the third liquid-cooling medium through the first end.

[0014] In one embodiment, the second energy exchange end is a battery module, the vehicle refrigerator is in cooling mode, and controlling the liquid cooling medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controlling the liquid cooling medium in the working medium circuit to perform energy exchange with the second energy exchange end, includes: delivering a fourth liquid cooling medium from the first end of the vehicle refrigerator to the battery module, and controlling the fourth liquid cooling medium to exchange energy with the battery module, so as to increase the temperature of the battery module by the fourth liquid cooling medium; The fourth liquid-cooling medium after energy exchange with the battery module is delivered to the first end, and the fourth liquid-cooling medium is controlled to exchange energy with the first end so as to remove heat from the first end through the fourth liquid-cooling medium.

[0015] On the other hand, a vehicle is provided, comprising the above energy management system.

[0016] The above technical solution of the present application has the following advantages over the prior art: The energy management system of the present application establishes a working fluid circuit between the vehicle refrigerator and other heat demand ends (or cold demand ends) on the vehicle through liquid cooling working fluid, so as to improve the energy utilization rate between the vehicle refrigerator and other heat demand ends (or cold demand ends) on the vehicle, thereby improving the utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 is a method flow chart of the energy management method provided in an embodiment of the present application; Figure 2 This is a system structure diagram of the energy management system provided by an embodiment of the present application; Figure 3 This is a first system structure diagram of energy exchange between a vehicle refrigerator and an electric drive end of the energy management system provided by an embodiment of the present application; Figure 4 This is a second system structure diagram of energy exchange between the vehicle refrigerator and the electric drive end of the energy management system provided by an embodiment of the present application; Figure 5 This is a system structure diagram of energy exchange between a vehicle refrigerator and an evaporation end of a refrigeration mechanism of an energy management system provided by an embodiment of the present application; Figure 6 This is a system structure diagram of the energy management system provided by an embodiment of the present application, in which the vehicle refrigerator exchanges energy with the electric drive end, and the heating mechanism exchanges energy with the condensing end of the refrigeration mechanism; Figure 7 This is a system structure diagram of the energy management system provided by an embodiment of the present application, in which the vehicle refrigerator exchanges energy with the condensing end of the refrigeration mechanism, and the electric drive end exchanges energy with the evaporating end of the refrigeration mechanism; Figure 8 This is a structural diagram of the energy exchange system between the vehicle refrigerator and the battery module of the energy management system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0020] Example 1 Reference Figure 1 As shown, Figure 1 A flow chart of the energy management method provided in an embodiment of the present application.

[0021] The method comprises the following steps: S101, determining an onboard refrigerator on a vehicle as a first energy exchange end, and determining a heat demand end or a cold demand end on the vehicle as a second energy exchange end, and establishing a working fluid circuit between the first energy exchange end and the second energy exchange end; Specifically, the energy management method of the present application establishes an energy exchange circuit between a first energy exchange end and a second energy exchange end to improve the vehicle's energy utilization rate. Furthermore, the first energy exchange end of the present application is an onboard refrigerator, and the second energy exchange end is a heat demand end or a cold demand end on the vehicle. An energy exchange circuit is established between the onboard refrigerator and the heat demand end (or cold demand end) on the vehicle to achieve energy exchange between the onboard refrigerator and the heat demand end (or cold demand end) on the vehicle, thereby improving the vehicle's energy utilization rate. The energy exchange between the first energy exchange end and the second energy exchange end is achieved through a liquid cooling medium. Therefore, a working medium circuit is established between the first energy exchange end and the second energy exchange end to facilitate energy exchange between the first energy exchange end and the second energy exchange end through the liquid cooling medium circulating in the working medium circuit.

[0022] S102 , controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end.

[0023] Specifically, since a working fluid circuit is established between the first energy exchange end and the second energy exchange end, the liquid-cooled working fluid circulates in the working fluid circuit, so that when the liquid-cooled working fluid flows to the first energy exchange end, the liquid-cooled working fluid exchanges energy with the first energy exchange end at the first energy exchange end, and when the liquid-cooled working fluid flows to the second energy exchange end, the liquid-cooled working fluid exchanges energy with the second energy exchange end at the second energy exchange end, so as to realize energy exchange between the first energy exchange end and the second energy exchange end through the liquid-cooled working fluid in the working fluid circuit, thereby improving the energy utilization rate of the vehicle.

[0024] The energy management method of the present application establishes a working fluid circuit between the vehicle refrigerator and other heat demand ends (or cold demand ends) on the vehicle through liquid cooling working fluid, so as to improve the energy utilization rate between the vehicle refrigerator and other heat demand ends (or cold demand ends) on the vehicle, thereby improving the energy utilization rate.

[0025] In one embodiment, the second energy exchange end is an electric drive end, and controlling the liquid cooling medium in the working fluid circuit to perform energy exchange with the first energy exchange end, and controlling the liquid cooling medium in the working fluid circuit to perform energy exchange with the second energy exchange end, includes: The first liquid cooling medium of the first end of the vehicle refrigerator is delivered to the electric drive end, and the first liquid cooling medium is controlled to exchange energy with the electric drive end so as to remove heat from the electric drive end through the first liquid cooling medium; Specifically, the second energy exchange end of the present application is the electric drive end, that is, the motor on the vehicle. A first working fluid circuit is established between the electric drive end and the on-board refrigerator to achieve energy exchange between the electric drive end and the on-board refrigerator through a liquid cooling working fluid. The working fluid in the working fluid circuit between the electric drive end and the on-board refrigerator is a first liquid cooling working fluid. When the first liquid cooling working fluid flows to the electric drive end, energy is exchanged between the first liquid cooling working fluid and the electric drive end, that is, the heat of the electric drive end is removed by the first liquid cooling working fluid.

[0026] The first liquid-cooled working medium after energy exchange with the electric drive end is transported to a cooling module downstream of the electric drive end, and the first liquid-cooled working medium is controlled to exchange energy with the cooling module so as to cool the first liquid-cooled working medium through the cooling module; Specifically, a cooling module is provided on the first liquid-cooled working fluid circuit, and the cooling module is provided downstream of the electric drive end. After the first liquid-cooled working fluid exchanges energy with the electric drive end, the temperature of the electric drive end decreases and the temperature of the first liquid-cooled working fluid increases. After heating, the first liquid-cooled working fluid flows to the cooling module in the first working fluid circuit. When the first liquid-cooled working fluid flows through the cooling module, energy is exchanged between the first liquid-cooled working fluid and the cooling module, that is, the temperature of the first liquid-cooled working fluid is reduced by the cooling module to facilitate energy exchange between the first liquid-cooled working fluid and the first end of the vehicle refrigerator.

[0027] The first liquid cooling medium after the temperature reduction treatment is transported to the first end, and the first liquid cooling medium is controlled to exchange energy with the first end so that the heat of the first end is taken away by the first liquid cooling medium, or the heat of the first liquid cooling medium is absorbed by the first end.

[0028] Specifically, the refrigeration device of the vehicle refrigerator of the present application utilizes a semiconductor device. By controlling the direction of current flowing through the semiconductor device, the vehicle refrigerator can be switched between heating and cooling modes. The end of the semiconductor device away from the refrigerator body forms a first end, while the end of the semiconductor device closer to the refrigerator body, where energy is exchanged with the refrigerator body, forms a second end. When the vehicle refrigerator is in cooling mode (the first end is the hot end and the second end is the cold end), the first liquid-cooled working medium is transported to the cooling module after energy exchange with the electric drive end. After energy exchange between the first liquid-cooled working medium and the cooling module, the temperature of the first liquid-cooled working medium decreases, and the temperature of the first liquid-cooled working medium is lower than the temperature of the first end. When the first liquid-cooled working medium flows through the first end, the first liquid-cooled working medium exchanges energy with the first end so that the heat of the first end is taken away by the first liquid-cooled working medium, thereby improving the cooling efficiency of the vehicle refrigerator. The temperature of the first liquid-cooled working medium after energy exchange with the first end increases, and the first liquid-cooled working medium with increased temperature flows to the electric drive end. Although the temperature of the first liquid-cooled working medium increases, the temperature of the first liquid-cooled working medium is much lower than the temperature of the electric drive end at this time. Therefore, the heated first liquid-cooled working medium can still absorb the heat of the electric drive end. When the vehicle refrigerator is in heating mode (the first end is the cold end and the second end is the hot end), the first liquid-cooled working medium is transported to the cooling module after energy exchange with the electric drive end. After energy exchange between the first liquid-cooled working medium and the cooling module, the temperature of the first liquid-cooled working medium decreases, but the temperature of the first liquid-cooled working medium is higher than the temperature of the first end. When the first liquid-cooled working medium flows through the first end, the first liquid-cooled working medium exchanges energy with the first end so that the first end absorbs the heat of the first liquid-cooled working medium and improves the heating efficiency of the vehicle refrigerator. The temperature of the first liquid-cooled working medium decreases after energy exchange with the first end, and the first liquid-cooled working medium with a reduced temperature flows to the electric drive end, so that the heat of the electric drive end is absorbed by the cooled first liquid-cooled working medium.

[0029] In one embodiment, the second energy exchange end is an evaporation end of a refrigeration mechanism, the vehicle refrigerator is in a refrigeration mode, and the liquid cooling medium in the working medium circuit is controlled to perform energy exchange with the first energy exchange end, and the liquid cooling medium in the working medium circuit is controlled to perform energy exchange with the second energy exchange end, including: The second liquid cooling medium at the first end of the vehicle refrigerator is transported to the evaporation end, and the second liquid cooling medium is controlled to exchange energy with the evaporation end so as to cool the second liquid cooling medium through the evaporation end; Specifically, the second energy exchange end of the present application is the evaporation end of the refrigeration mechanism. The evaporation end absorbs heat from the environment, thereby lowering the ambient temperature. A second working fluid circuit is established between the evaporation end and the vehicle refrigerator to achieve energy exchange between the evaporation end and the vehicle refrigerator via a second liquid-cooling working fluid. The working fluid in the second working fluid circuit between the evaporation end and the vehicle refrigerator is the second liquid-cooling working fluid. Furthermore, when energy is exchanged between the vehicle refrigerator and the evaporation end via the second liquid-cooling working fluid, the vehicle refrigerator is placed in cooling mode, and the second liquid-cooling working fluid from the first end (hot end) of the vehicle refrigerator is transported to the evaporation end to facilitate energy exchange between the evaporation end and the second liquid-cooling working fluid. That is, the second liquid-cooling working fluid is cooled by the evaporation end. The evaporation end of the refrigeration mechanism is the heat demand end.

[0030] The second liquid cooling medium after the temperature reduction treatment is delivered to the first end, and the second liquid cooling medium is controlled to exchange energy with the first end so as to remove the heat of the first end through the second liquid cooling medium.

[0031] Specifically, after the second liquid-cooling medium is cooled by the evaporating end, the second liquid-cooling medium is transported to the first end of the vehicle refrigerator in the second working medium circuit to facilitate energy exchange between the second liquid-cooling medium and the first end. That is, the heat of the first end of the vehicle refrigerator is taken away by the second liquid-cooling medium, thereby improving the refrigeration efficiency of the vehicle refrigerator.

[0032] In one embodiment, the method further comprises: Determining a heater mechanism on the vehicle as the third energy exchange end and determining that the liquid cooling medium in the heating self-circulating loop where the heater mechanism is located is the heating self-circulating medium; Specifically, the heating mechanism of the present application serves as a third energy exchange terminal to exchange energy with the condensing terminal of the refrigeration mechanism. Specifically, the heating mechanism is arranged in a heating self-circulating loop, and the liquid cooling medium in the heating self-circulating loop is the heating self-circulating medium, and energy is exchanged between the heating self-circulating medium and the condensing terminal of the refrigeration mechanism.

[0033] The heating self-circulating working medium is used as the condensing medium of the refrigerant in the refrigeration mechanism, and the heating self-circulating working medium is controlled to exchange energy with the refrigerant at the condensing end, so as to increase the temperature of the heating self-circulating working medium through the refrigerant at the condensing end; Specifically, the refrigeration mechanism includes four working processes: compression, condensation, throttling, and evaporation. The refrigerant undergoes the compression process and becomes a high-temperature, high-pressure gas. This high-temperature, high-pressure gas condenses into a liquid in the condenser at the condensing end. The heating self-circulating working fluid in the heating self-circulating loop serves as the condensing medium for the high-temperature, high-pressure gas, so that the high-temperature, high-pressure gas is condensed by the heating self-circulating working fluid. That is, the high-temperature, high-pressure gas exchanges energy with the heating self-circulating working fluid, causing the temperature of the high-temperature, high-pressure gas to decrease while the temperature of the heating self-circulating working fluid to increase. This increased temperature of the heating self-circulating working fluid then provides warm air to the heating mechanism.

[0034] The heating self-circulating working medium after the temperature increase treatment exchanges energy with the external environment through the warm air mechanism to increase the temperature of the external environment.

[0035] Specifically, the high-temperature, high-pressure gas exchanges energy with the self-circulating heating medium, raising the temperature of the self-circulating heating medium. The heated self-circulating heating medium is then transported through the self-circulating heating loop to the heating mechanism, where it exchanges energy with the external environment, raising the temperature of the external environment, such as the cab.

[0036] In one embodiment, the second energy exchange end is a condensing end of a refrigeration mechanism, the vehicle refrigerator is in a heating mode, and the liquid cooling medium in the working medium circuit is controlled to perform energy exchange with the first energy exchange end, and the liquid cooling medium in the working medium circuit is controlled to perform energy exchange with the second energy exchange end, including: The third liquid cooling medium at the first end of the vehicle refrigerator is transported to the condensing end, and the third liquid cooling medium is used as the condensing medium at the condensing end; Specifically, the second energy exchange end of the present application is the condensing end of the refrigeration mechanism. A third working fluid circuit is established between the condensing end and the vehicle refrigerator to achieve energy exchange between the condensing end and the vehicle refrigerator via a third liquid-cooling working fluid. The working fluid in the third working fluid circuit is a third liquid-cooling working fluid. Furthermore, the condensing end requires a condensing medium, and the third liquid-cooling working fluid is used as the condensing medium for the condensing end. The condensing end of the refrigeration mechanism is the end that demands cooling capacity.

[0037] Controlling the third liquid-cooling medium to exchange energy with the refrigerant at the condensing end, so as to increase the temperature of the third liquid-cooling medium by the refrigerant at the condensing end; Specifically, the condenser at the condensing end performs condensation, that is, energy exchange between the refrigerant and the condensing medium. The condensing medium is the third liquid-cooling working fluid, and energy exchange is performed between the third liquid-cooling working fluid and the refrigerant. The refrigerant entering the condensing end is a high-temperature and high-pressure gas. After the high-temperature and high-pressure gas refrigerant exchanges energy with the third liquid-cooling working fluid, the high-temperature and high-pressure gas becomes liquid, and the temperature of the third liquid-cooling working fluid increases.

[0038] The third liquid-cooling medium after the temperature increase treatment is delivered to the first end, and the third liquid-cooling medium is controlled to exchange energy with the first end so as to absorb the heat of the third liquid-cooling medium through the first end.

[0039] Specifically, the high-temperature, high-pressure gas refrigerant exchanges energy with the third liquid-cooling medium, causing the temperature of the third liquid-cooling medium to rise. The heated third liquid-cooling medium is then transported within the third liquid-cooling medium circuit to the first end of the vehicle refrigerator, facilitating energy exchange between the first end and the third liquid-cooling medium. Specifically, the first end absorbs heat from the third liquid-cooling medium, improving the heating efficiency of the vehicle refrigerator. Furthermore, during energy exchange between the condensing end of the refrigeration mechanism and the vehicle refrigerator, the vehicle refrigerator is in heating mode, with the first end acting as a cold end and the second end acting as a hot end.

[0040] In one embodiment, the second energy exchange end is a battery module, the vehicle refrigerator is in cooling mode, and the liquid cooling medium in the working fluid circuit is controlled to perform energy exchange with the first energy exchange end, and the liquid cooling medium in the working fluid circuit is controlled to perform energy exchange with the second energy exchange end, including: delivering a fourth liquid cooling medium from the first end of the vehicle refrigerator to the battery module, and controlling the fourth liquid cooling medium to exchange energy with the battery module, so as to increase the temperature of the battery module by the fourth liquid cooling medium; Specifically, the second energy exchange end of the present application is a battery module, that is, the power supply battery on the vehicle. A fourth working fluid circuit is established between the battery module and the vehicle refrigerator to achieve energy exchange between the battery module and the vehicle refrigerator via a fourth liquid-cooling working fluid. The liquid-cooling working fluid in the fourth working fluid circuit is the fourth liquid-cooling working fluid. Furthermore, when the vehicle refrigerator and the battery module exchange energy via the fourth liquid-cooling working fluid, the vehicle refrigerator is placed in cooling mode and the fourth liquid-cooling working fluid at the first end (hot end) of the vehicle refrigerator is transported to the battery module to facilitate energy exchange between the battery module and the fourth liquid-cooling working fluid. That is, the battery module is heated by the fourth liquid-cooling working fluid. The battery module is the heat demanding end.

[0041] The fourth liquid-cooling medium after energy exchange with the battery module is delivered to the first end, and the fourth liquid-cooling medium is controlled to exchange energy with the first end so as to take away heat from the first end through the fourth liquid-cooling medium.

[0042] Specifically, after the battery module is heated by the fourth liquid-cooling medium, the temperature of the fourth liquid-cooling medium decreases, and the fourth liquid-cooling medium is transported to the first end of the vehicle refrigerator in the working medium circuit, so that the cooled fourth liquid-cooling medium can exchange energy with the first end, that is, the heat of the first end of the vehicle refrigerator is taken away by the fourth liquid-cooling medium.

[0043] In one embodiment, the vehicle refrigerator includes a heating mode and a cooling mode, and the method further includes: The positive and negative poles of the semiconductor device on the car refrigerator are switched to switch the car refrigerator from heating mode to cooling mode, or to switch the car refrigerator from cooling mode to heating mode.

[0044] Specifically, car refrigerators are made using semiconductor devices (thermoelectric coolers, or TECs). The semiconductor cooling element is a solid-state heat pump device based on the Peltier effect, which is driven by direct current to achieve precise temperature control. Because the Peltier effect is reversible, car refrigerators can operate in both cooling and cooling modes simultaneously. When the car refrigerator is in cooling mode, the first end is the hot end and the second end is the cold end. When the power polarity of the semiconductor device is switched, the hot and cold ends immediately swap, with the first end becoming the cold end and the second end becoming the hot end, placing the car refrigerator in heating mode. Therefore, by switching the positive and negative poles of the semiconductor device on the car refrigerator, the car refrigerator can switch between heating and cooling modes.

[0045] Example 2 Reference Figure 2-Figure 8 As shown, Figure 2-Figure 8 This is a system structure diagram of the energy management system provided in an embodiment of the present application. Figure 2-Figure 8 The dotted line part in the figure indicates that each module does not participate in the normal operation of the corresponding mode, and the solid line part indicates that each module works normally in the corresponding mode.

[0046] The energy management system of this embodiment includes: The first energy exchange end is configured as a vehicle refrigerator; The second energy exchange end is set as a heat demand end or a cold demand end on the vehicle, and establishes a working medium circuit with the first energy exchange end; The working fluid is driven to control the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the first energy exchange end, and to control the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the second energy exchange end.

[0047] The first energy exchange end of the present application is a vehicle-mounted refrigerator, and the second energy exchange end is a heat demand end or a cooling demand end on the vehicle. An energy exchange circuit is established between the vehicle-mounted refrigerator and the heat demand end or the cooling demand end on the vehicle to realize energy exchange between the vehicle-mounted refrigerator and the heat demand end or the cooling demand end on the vehicle. The energy exchange between the first energy exchange end and the second energy exchange end is realized by a liquid cooling medium. Therefore, a working medium circuit is established between the first energy exchange end and the second energy exchange end so as to realize energy exchange between the first energy exchange end and the second energy exchange end through the liquid cooling medium circulating in the working medium circuit. The flow power of the liquid cooling medium is provided by a working medium drive, such as a water pump. In addition, the working medium circuit between the vehicle-mounted refrigerator and the heat demand end or the cooling demand end of the present application is constructed by corresponding pipelines and valves, such as a ten-way valve, and switching between different working modes is realized by controlling the on-off of each pipeline on the ten-way valve.

[0048] In one embodiment, the vehicle refrigerator includes a refrigerator body, an air cooling mechanism, a refrigeration device and a liquid cooling mechanism. The refrigeration device includes a first end and a second end. The refrigerator body, the air cooling mechanism, the second end, the first end and the liquid cooling mechanism are arranged in sequence. The first end exchanges energy with the liquid cooling working medium in the working medium circuit through the liquid cooling mechanism, and the second end exchanges energy with the refrigerator body through the air cooling mechanism.

[0049] The vehicle refrigerator of the present application comprises a refrigerator body, an air cooling mechanism, a second end, a first end and a liquid cooling mechanism arranged in sequence. Figure 2 As shown, the refrigerator body is used to store corresponding objects such as beverages, popsicles, etc. The refrigeration device of the vehicle refrigerator adopts a semiconductor device, which includes a first end and a second end. When the vehicle refrigerator is in cooling mode, the first end is a hot end and the second end is a cold end. The second end exchanges energy with the refrigerator body through an air cooling mechanism, that is, the second end cools the refrigerator body through the air cooling mechanism, and the first end exchanges energy with a liquid cooling medium through a liquid cooling mechanism, that is, the liquid cooling medium removes heat from the first end through the liquid cooling mechanism (such as a liquid cooling plate); when the vehicle refrigerator is in heating mode, the first end is a cold end and the second end is a hot end. The second end exchanges energy with the refrigerator body through the air cooling mechanism, that is, the second end heats the refrigerator body through the air cooling mechanism, and the first end exchanges energy with the liquid cooling medium through the liquid cooling mechanism, that is, the first end absorbs heat from the liquid cooling medium through the liquid cooling mechanism (such as a liquid cooling plate). Among them, one end of the air cooling mechanism is in contact with the second end of the vehicle refrigerator, and the other end of the air cooling mechanism cools or heats the refrigerator body; one end of the liquid cooling mechanism (liquid cooling plate) is in contact with the first end of the vehicle refrigerator, and the other end of the liquid cooling mechanism (liquid cooling plate) circulates the first liquid cooling medium.

[0050] In one embodiment, the energy management system also includes a first heat exchanger and a second heat exchanger, the second energy exchange end is the electric drive end, and a cooling module is connected downstream of the electric drive end. The primary side of the first heat exchanger is the working fluid circuit between the electric drive end and the vehicle refrigerator, the secondary side of the first heat exchanger is the electric drive end, the primary side of the second heat exchanger is the first cold source, and the secondary side of the second heat exchanger is the working fluid circuit between the electric drive end and the vehicle refrigerator.

[0051] The vehicle refrigerator of the present application exchanges energy with the electric drive end to improve energy utilization. Figure 3 and Figure 4In the illustrated operating mode, the vehicle refrigerator and the electric drive end are connected via a ten-way valve. The output side of the first end of the vehicle refrigerator, port 3 of the ten-way valve, port 9 of the ten-way valve, the primary inlet of the first heat exchanger, the primary outlet of the first heat exchanger, the secondary inlet of the second heat exchanger, the secondary outlet of the second heat exchanger, port 10 of the ten-way valve, port 4 of the ten-way valve, and the input side of the first end are sequentially connected to form a working fluid circuit, thereby establishing a first working fluid circuit between the vehicle refrigerator, the electric drive end, and the cooling module. A first liquid-cooling medium flows within the first working fluid circuit, thereby circulating the first liquid-cooling medium between the first end of the vehicle refrigerator, the electric drive end, and the cooling module. Furthermore, a radiator water pump is provided in the first working fluid circuit between the output side of the first end of the vehicle refrigerator and port 3 of the ten-way valve. The radiator water pump is used to provide a power source for the circulation of the first liquid-cooling medium in the first working fluid circuit. Furthermore, energy is exchanged between the electric drive and the first liquid-cooled working medium via a first heat exchanger (located on the electric drive, not shown). The primary side of the first heat exchanger serves as the first working medium circuit, and the secondary side serves as the electric drive. Energy is exchanged between the cooling module and the first liquid-cooled working medium via a second heat exchanger (located on the cooling module, not shown). The primary side of the second heat exchanger serves as the first cooling source, which can be a radiator fan, and the secondary side of the second heat exchanger serves as the first working medium circuit. The cooling module is located within the first working medium circuit, between the electric drive and port 10 of the ten-way valve. A motor-driven water pump is installed between port 9 of the ten-way valve and the input side of the electric drive. Together, the motor-driven water pump and the radiator water pump provide the power source for circulating the first liquid-cooled working medium within the working medium circuit. When the vehicle refrigerator is in cooling mode, the first liquid-cooled refrigerant exchanges energy with the electric drive end through the first heat exchanger to remove heat from the electric drive end. The temperature of the first liquid-cooled refrigerant increases, and the heated first liquid-cooled refrigerant is transported to the second heat exchanger. The first liquid-cooled refrigerant exchanges energy with the external environment through the second heat exchanger, dissipating heat from the first liquid-cooled refrigerant to the external environment, reducing the temperature of the first liquid-cooled refrigerant, and the temperature of the first liquid-cooled refrigerant is lower than the temperature of the first end. When the first liquid-cooled refrigerant flows through the first end, the first liquid-cooled refrigerant exchanges energy with the first end, so that the first liquid-cooled refrigerant removes heat from the first end, thereby improving the cooling efficiency of the vehicle refrigerator. After exchanging energy with the first end, the temperature of the first liquid-cooled refrigerant increases, and the heated first liquid-cooled refrigerant flows to the electric drive end. Although the temperature of the first liquid-cooled refrigerant increases, the temperature of the first liquid-cooled refrigerant is much lower than the temperature of the electric drive end. Therefore, the heated first liquid-cooled refrigerant can still absorb heat from the electric drive end.When the car refrigerator is in heating mode, the first liquid-cooled working medium exchanges energy with the electric drive end through the first heat exchanger, so that the heat of the electric drive end is taken away by the first liquid-cooled working medium, and the temperature of the first liquid-cooled working medium increases. The heated first liquid-cooled working medium is transported to the second heat exchanger, and the first liquid-cooled working medium exchanges energy with the external environment through the second heat exchanger. The heat of the first liquid-cooled working medium is dissipated to the external environment, and the temperature of the first liquid-cooled working medium decreases. However, the temperature of the first liquid-cooled working medium is higher than the temperature of the first end. When the first liquid-cooled working medium flows through the first end, the first liquid-cooled working medium exchanges energy with the first end so that the first end absorbs the heat of the first liquid-cooled working medium, thereby improving the heating efficiency of the car refrigerator; the temperature of the first liquid-cooled working medium after energy exchange with the first end decreases, and the first liquid-cooled working medium with a reduced temperature flows to the electric drive end, so as to absorb the heat of the electric drive end through the cooled first liquid-cooled working medium.

[0052] In one embodiment, the energy management system also includes a third heat exchanger, the second energy exchange end is a refrigeration mechanism, and the refrigeration mechanism is provided with an evaporation end, which forms the primary side of the third heat exchanger, and the secondary side of the third heat exchanger is the working fluid circuit between the evaporation end and the vehicle refrigerator.

[0053] The vehicle refrigerator of the present application exchanges energy with the refrigeration mechanism to improve energy utilization. Figure 5In the operating mode shown, the vehicle refrigerator and the evaporation end of the refrigeration mechanism are connected via a ten-way valve. The output side of the first end of the vehicle refrigerator, port 3 of the ten-way valve, port 6 of the ten-way valve, the secondary inlet of the third heat exchanger, the secondary outlet of the third heat exchanger, port 5 of the ten-way valve, port 4 of the ten-way valve, and the input side of the first end are sequentially connected to form a working fluid circuit, thereby establishing a second working fluid circuit between the vehicle refrigerator and the refrigeration mechanism. A second liquid-cooling working fluid flows within the second working fluid circuit, thereby circulating the second liquid-cooling working fluid between the first end of the vehicle refrigerator and the evaporation end of the refrigeration mechanism. Furthermore, a radiator water pump is provided in the second working fluid circuit between the output side of the first end of the vehicle refrigerator and port 3 of the ten-way valve. The radiator water pump is used to provide a power source for the circulation of the second liquid-cooling working fluid within the working fluid circuit. In this mode, the car refrigerator is in cooling mode. The first end of the car refrigerator exchanges energy with the second liquid-cooling medium to take away the heat of the first end through the second liquid-cooling medium. After the second liquid-cooling medium exchanges energy with the first end, the temperature of the second liquid-cooling medium rises. The heated second liquid-cooling medium flows in the second working medium circuit to the third heat exchanger, and energy is exchanged between the secondary side and the primary side of the third heat exchanger. The primary side of the third heat exchanger is the evaporation end of the refrigeration mechanism (the refrigerant evaporates and absorbs heat, reducing the temperature of the primary side), and the secondary side of the third heat exchanger is the second liquid-cooling medium, that is, the second liquid-cooling medium is cooled by the evaporation end of the refrigeration mechanism, so that the temperature of the second liquid-cooling medium is reduced. The cooled second liquid-cooling medium is transported to the first end of the car refrigerator and exchanges energy with the first end to take away the heat of the first end through the second liquid-cooling medium, thereby improving the refrigeration efficiency of the car refrigerator. Among them, the evaporation end of the refrigeration mechanism includes a first evaporation end and a second evaporation end. The first evaporation end serves as a second cold source to exchange energy with the second liquid-cooling medium to reduce the temperature of the second liquid-cooling medium. The second evaporation end is used for air conditioning and refrigeration. The first evaporation end and the second evaporation end can work simultaneously, or independently according to actual needs.

[0054] In one embodiment, the energy management system also includes a fourth heat exchanger, the second energy exchange end is a refrigeration mechanism, a condensation end is provided on the refrigeration mechanism, the primary side of the fourth heat exchanger is the refrigerant at the condensation end, and the secondary side of the fourth heat exchanger is the working fluid circuit between the condensation end and the vehicle refrigerator.

[0055] The vehicle refrigerator of the present application exchanges energy with the condensing end of the refrigeration mechanism to improve energy utilization. Figure 7In the operating mode shown, the vehicle refrigerator and the condensing end of the refrigeration mechanism are connected via a ten-way valve. The output side of the first end of the vehicle refrigerator, port 3 of the ten-way valve, port 1 of the ten-way valve, the secondary inlet of the fourth heat exchanger, the secondary outlet of the fourth heat exchanger, port 2 of the ten-way valve, port 4 of the ten-way valve, and the input side of the first end are sequentially connected to form a working fluid circuit, thereby establishing a third working fluid circuit between the vehicle refrigerator and the condensing end of the refrigeration mechanism. A third liquid-cooled working fluid flows within the third working fluid circuit, thereby circulating the third liquid-cooled working fluid between the first end of the vehicle refrigerator and the condensing end of the refrigeration mechanism. Furthermore, a radiator water pump is provided in the third working fluid circuit between the output side of the first end of the vehicle refrigerator and port 3 of the ten-way valve. The radiator water pump provides a power source for the circulation of the third liquid-cooled working fluid within the working fluid circuit. In this mode, the vehicle refrigerator is in heating mode. The first end of the vehicle refrigerator exchanges energy with the third liquid coolant, causing the first end to absorb heat from the third liquid coolant. The temperature of the third liquid coolant decreases after the energy exchange with the first end. The cooled third liquid coolant then flows through the third liquid coolant circuit to the fourth heat exchanger (the condenser at the condensing end serves as the fourth heat exchanger). Energy is exchanged between the primary and secondary sides of the fourth heat exchanger. The primary side of the fourth heat exchanger contains the refrigerant from the refrigeration mechanism (which condenses and releases heat), while the secondary side contains the third liquid coolant (the condensing medium). This means that the refrigerant from the refrigeration mechanism heats the third liquid coolant, raising its temperature. The heated third liquid coolant is then delivered to the first end of the vehicle refrigerator, allowing it to absorb heat from the third liquid coolant, thereby improving the heating efficiency of the vehicle refrigerator. A warm air water pump is located between port 1 of the ten-way valve and the secondary inlet of the fourth heat exchanger. The secondary outlet at the condensing end is connected to port 2 of the ten-way valve. That is, in order to improve the energy exchange efficiency, this application uses part of the heating pipeline to form a third working medium circuit to achieve energy exchange between the third liquid cooling medium and the refrigerant. At the same time, in this mode, there is also energy exchange between the electric drive end and the evaporation end of the refrigeration mechanism to further improve the energy utilization rate. Specifically, Figure 7As shown, the electric drive end and the evaporation end of the refrigeration mechanism are connected via a ten-way valve. The primary outlet of the first heat exchanger, the secondary inlet of the second heat exchanger, the secondary outlet of the second heat exchanger, port 10 of the ten-way valve, port 6 of the ten-way valve, the secondary inlet of the third heat exchanger, the secondary outlet of the third heat exchanger, port 5 of the ten-way valve, port 9 of the ten-way valve, and the primary inlet of the first heat exchanger are sequentially connected to form a working fluid circuit, establishing a fifth working fluid circuit between the electric drive end and the evaporation end. A fifth liquid-cooling working fluid circulates within this fifth working fluid circuit, thereby circulating between the electric drive end and the evaporation end. A motor-driven water pump is provided between port 9 of the ten-way valve and the input side of the electric drive end in the fifth working fluid circuit, providing the power source for the circulation of the fifth liquid-cooling working fluid within the fifth working fluid circuit. The car refrigerator in this mode is in heating mode, and the fifth liquid-cooled working medium exchanges energy with the electric drive end through the first heat exchanger to take away the heat of the electric drive end through the first liquid-cooled working medium. The temperature of the fifth liquid-cooled working medium increases, and the heated fifth liquid-cooled working medium is transported to the second heat exchanger. The fifth liquid-cooled working medium exchanges energy with the external environment through the second heat exchanger, and the heat of the fifth liquid-cooled working medium is dissipated to the external environment. The temperature of the fifth liquid-cooled working medium decreases, and the cooled fifth liquid-cooled working medium is transported to the third heat exchanger. The fifth liquid-cooled working medium exchanges energy with the evaporation end through the third heat exchanger, that is, the temperature of the fifth liquid-cooled working medium is reduced through the evaporation end, and the cooled fifth liquid-cooled working medium is transported to the first heat exchanger to exchange energy with the electric drive end through the cooled fifth liquid-cooled working medium, and take away the heat of the electric drive end through the fifth liquid-cooled working medium.

[0056] In one embodiment, the energy management system also includes a third heat exchanger, a fourth heat exchanger and a third energy exchange end, the second energy exchange end is the evaporation end of the refrigeration mechanism, the third energy exchange end is the heating mechanism, the third heat exchanger is used for energy exchange between the vehicle refrigerator and the evaporation end of the refrigeration mechanism, and the fourth heat exchanger is used for energy exchange between the heating mechanism and the condensation end of the refrigeration mechanism.

[0057] The vehicle refrigerator of the present application exchanges energy with the evaporation end of the refrigeration mechanism, and exchanges energy with the condensation end of the refrigeration mechanism and the heating mechanism to improve energy utilization. Figure 6In the operating mode shown, the vehicle refrigerator and the evaporation end of the refrigeration mechanism are connected via a ten-way valve. The output side of the first end of the vehicle refrigerator, port 3 of the ten-way valve, port 6 of the ten-way valve, the secondary inlet of the third heat exchanger, the secondary outlet of the third heat exchanger, port 5 of the ten-way valve, port 4 of the ten-way valve, and the input side of the first end are sequentially connected to form a working fluid circuit, thereby establishing a second working fluid circuit between the vehicle refrigerator and the refrigeration mechanism. A second liquid-cooling working fluid flows within the second working fluid circuit, thereby circulating the second liquid-cooling working fluid between the first end of the vehicle refrigerator and the evaporation end of the refrigeration mechanism. Furthermore, a radiator water pump is provided in the second working fluid circuit between the output side of the first end of the vehicle refrigerator and port 3 of the ten-way valve. The radiator water pump is used to provide a power source for the circulation of the second liquid-cooling working fluid within the working fluid circuit. The car refrigerator in this mode is in cooling mode. The first end of the car refrigerator exchanges energy with the second liquid-cooling medium to take away the heat of the first end through the second liquid-cooling medium. The temperature of the second liquid-cooling medium rises after the energy exchange with the first end. The heated second liquid-cooling medium flows in the second working medium circuit to the third heat exchanger. The secondary side and the primary side of the third heat exchanger exchange energy. The primary side of the second heat exchanger is the evaporation end of the refrigeration mechanism (the refrigerant evaporates and absorbs heat, reducing the temperature of the primary side). The secondary side of the second heat exchanger is the second liquid-cooling medium, that is, the second liquid-cooling medium is cooled by the evaporation end of the refrigeration mechanism, so that the temperature of the second liquid-cooling medium is reduced. The cooled second liquid-cooling medium is transported to the first end of the car refrigerator. The cooled first liquid-cooling medium exchanges energy with the first end to take away the heat of the first end, thereby improving the cooling efficiency of the car refrigerator. Figure 6As shown, the secondary inlet of the fourth heat exchanger, the heating mechanism, the heating water pump, and the secondary outlet of the fourth heat exchanger are sequentially connected to form a heating self-circulating loop. The heating self-circulating working medium circulates within the heating self-circulating loop, and the heating water pump provides the power source for the circulation of the heating self-circulating working medium within the heating self-circulating loop. The refrigeration mechanism includes four working processes: compression, condensation, throttling, and evaporation. The refrigerant undergoes the compression process and becomes a high-temperature, high-pressure gas. The high-temperature, high-pressure gas condenses into a liquid at the condensing end. The primary side of the fourth heat exchanger is the refrigerant, and the secondary side of the fourth heat exchanger is the heating self-circulating working medium, enabling energy exchange between the condensing end of the refrigeration mechanism and the heating mechanism. The heating self-circulating working fluid is used as the condensing medium at the condensing end, and the refrigerant entering the condensing end is a high-temperature and high-pressure gas. After the high-temperature and high-pressure gas refrigerant exchanges energy with the heating self-circulating working fluid, the high-temperature and high-pressure gas becomes liquid, and the temperature of the heating self-circulating working fluid increases. The heated heating self-circulating working fluid is transported to the warm air mechanism in the heating self-circulating working fluid loop, and the heating self-circulating working fluid exchanges energy with the external environment at the warm air mechanism. After the heating self-circulating working fluid exchanges energy with the external environment, the external environment temperature increases, and the temperature of the heating self-circulating working fluid decreases. The cooled heating self-circulating working fluid is transported to the condensing end to exchange energy with the refrigerant, so as to increase the temperature of the heating self-circulating working fluid through the refrigerant.

[0058] In one embodiment, the energy management system also includes a fifth heat exchanger, the second energy exchange end is a battery module, the primary side of the fifth heat exchanger is a working fluid circuit between the battery module and the vehicle refrigerator, and the secondary side of the fifth heat exchanger is a battery module.

[0059] The vehicle refrigerator of the present application exchanges energy with the battery module to improve energy utilization. Figure 8In the operating mode shown, the vehicle refrigerator and the battery module are connected via a ten-way valve. The output side of the first end of the vehicle refrigerator, port 3 of the ten-way valve, port 7 of the ten-way valve, the primary inlet of the fifth heat exchanger, the primary outlet of the fifth heat exchanger, port 8 of the ten-way valve, port 4 of the ten-way valve, and the input side of the first end are sequentially connected to form a working fluid circuit, thereby establishing a fourth working fluid circuit between the vehicle refrigerator and the battery module. A fourth liquid-cooling working fluid circulates within the fourth working fluid circuit, thereby circulating the fourth liquid-cooling working fluid between the first end of the vehicle refrigerator and the battery module. Furthermore, a radiator water pump is provided in the fourth working fluid circuit between the output side of the first end of the vehicle refrigerator and port 3 of the ten-way valve, and a battery water pump is provided between port 7 of the ten-way valve and the battery module. The radiator water pump and the battery water pump jointly provide a power source for the circulation of the fourth liquid-cooling working fluid within the fourth working fluid circuit. In this mode, the vehicle refrigerator is in cooling mode. The first end of the vehicle refrigerator exchanges energy with the fourth liquid-cooling medium to remove heat from the first end via the fourth liquid-cooling medium. After the fourth liquid-cooling medium exchanges energy with the first end, its temperature increases. The heated fourth liquid-cooling medium is transported to a fifth heat exchanger (disposed at the battery module, not shown in the figure). The primary side of the fifth heat exchanger exchanges energy with the secondary side. The primary side of the fifth heat exchanger is the fourth liquid-cooling medium in the fourth working medium circuit, and the secondary side of the fifth heat exchanger is the battery module. That is, the fourth liquid-cooling medium exchanges energy with the battery module to increase the temperature of the battery module on the secondary side via the fourth liquid-cooling medium. After the fourth liquid-cooling medium exchanges energy with the battery module, its temperature decreases. The fourth liquid-cooling medium is transported to the first end. The cooled fourth liquid-cooling medium exchanges energy with the first end to remove heat from the first end via the fourth liquid-cooling medium, thereby improving the cooling efficiency of the vehicle refrigerator.

[0060] For the specific definition of the energy management system, please refer to the definition of the method above and will not be repeated here. Each module in the above energy management system can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0061] Example 3 This embodiment provides a vehicle, the vehicle including the above-mentioned energy management system, the energy management system including: The first energy exchange end is configured as a vehicle refrigerator; The second energy exchange end is set as a heat demand end or a cold demand end on the vehicle, and establishes a working medium circuit with the first energy exchange end; The working fluid is driven to control the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the first energy exchange end, and to control the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the second energy exchange end.

[0062] The energy management system of the present application establishes an energy exchange circuit between the on-board refrigerator and other heat demanding ends or cold demanding ends on the vehicle through liquid cooling medium, so as to improve the energy utilization rate between the on-board refrigerator and other heat demanding ends or cold demanding ends on the vehicle, thereby improving the energy utilization rate of the vehicle.

[0063] In addition, the vehicle is equipped with a controller that controls the energy management system to operate in different modes. Specifically, the controller controls the second energy exchange terminal to be the electric drive terminal, the evaporation terminal of the refrigeration mechanism, the condensation terminal of the refrigeration mechanism, or the battery module, controls the third energy exchange terminal to be the heating mechanism, and controls the working port of the solenoid valve (ten-way valve) between the first and second energy exchange terminals to control the switching between different working fluid circuits. The user can actively control the energy management system to operate in the corresponding mode through the vehicle's on-board system, or the controller can automatically control the energy management system to operate in the corresponding mode to achieve energy exchange between the first and second energy exchange terminals. When energy exchange is required, the corresponding second energy exchange end can be selected for energy exchange according to the energy demand of the first energy exchange end. For example, when the car refrigerator is in cooling mode as the first energy exchange end and its hot end requires a larger amount of cooling for heat dissipation, the evaporation end of the refrigeration mechanism can be selected as the second energy exchange end. When its hot end requires a smaller amount of cooling for heat dissipation, the electric drive end can be selected as the second energy exchange end. The corresponding second energy exchange end can also be configured for the first energy exchange end according to the energy demand of the second energy exchange end. For example, when the car refrigerator is in cooling mode, if the evaporation end of the refrigeration mechanism requires a larger amount of heat, the evaporation end of the refrigeration mechanism is preferentially set as the end for energy exchange with the car refrigerator. If the battery module requires a larger amount of heat, the battery module is preferentially set as the end for energy exchange with the car refrigerator.

[0064] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An energy management system, characterized in that: include: The first energy exchange end is configured as a vehicle refrigerator; The second energy exchange end is set as a heat demand end or a cold demand end on the vehicle, and a working medium circuit is established between the first energy exchange end and the second energy exchange end; Working medium drive controls the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controls the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end.

2. The energy management system according to claim 1, characterized in that: The vehicle-mounted refrigerator includes a refrigerator body, an air-cooling mechanism, a refrigeration device and a liquid-cooling mechanism. The refrigeration device includes a first end and a second end. The refrigerator body, the air-cooling mechanism, the second end, the first end and the liquid-cooling mechanism are arranged in sequence. The first end exchanges energy with the liquid-cooled working medium in the working medium circuit through the liquid-cooling mechanism, and the second end exchanges energy with the refrigerator body through the air-cooling mechanism.

3. The energy management system according to claim 1, characterized in that: The energy management system also includes a first heat exchanger and a second heat exchanger, the second energy exchange end is the electric drive end, and a cooling module is connected downstream of the electric drive end. The primary side of the first heat exchanger is the working fluid circuit between the electric drive end and the vehicle refrigerator, the secondary side of the first heat exchanger is the electric drive end, the primary side of the second heat exchanger is the first cold source, and the secondary side of the second heat exchanger is the working fluid circuit between the electric drive end and the vehicle refrigerator.

4. The energy management system according to claim 1, characterized in that: The energy management system also includes a third heat exchanger, the second energy exchange end is a refrigeration mechanism, and the refrigeration mechanism is provided with an evaporation end. The evaporation end forms the primary side of the third heat exchanger, and the secondary side of the third heat exchanger is the working fluid circuit between the evaporation end and the vehicle refrigerator.

5. The energy management system according to claim 1, characterized in that: The energy management system also includes a fourth heat exchanger, the second energy exchange end is a refrigeration mechanism, and the refrigeration mechanism is provided with a condensing end. The primary side of the fourth heat exchanger is the refrigerant of the condensing end, and the secondary side of the fourth heat exchanger is the working fluid circuit between the condensing end and the vehicle refrigerator.

6. The energy management system according to claim 1, characterized in that: The energy management system also includes a fifth heat exchanger, the second energy exchange end is a battery module, the primary side of the fifth heat exchanger is a working fluid circuit between the battery module and the vehicle refrigerator, and the secondary side of the fifth heat exchanger is the battery module.

7. An energy management method using the energy management system according to any one of claims 1 to 6, characterized in that: The energy management method comprises: Determining an onboard refrigerator on the vehicle as a first energy exchange end, and determining a heat demand end or a cold demand end on the vehicle as a second energy exchange end, and establishing a working fluid circuit between the first energy exchange end and the second energy exchange end; The liquid-cooled working medium in the working medium circuit is controlled to perform energy exchange with the first energy exchange end, and the liquid-cooled working medium in the working medium circuit is controlled to perform energy exchange with the second energy exchange end.

8. The energy management method according to claim 7, characterized in that: The second energy exchange end is an electric drive end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and controlling the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end, includes: delivering a first liquid cooling medium from the first end of the vehicle refrigerator to the electric drive end, and controlling the first liquid cooling medium to exchange energy with the electric drive end, so as to remove heat from the electric drive end through the first liquid cooling medium; delivering the first liquid-cooling medium after energy exchange with the electric drive end to a cooling module downstream of the electric drive end, and controlling the first liquid-cooling medium to exchange energy with the cooling module so as to cool the first liquid-cooling medium through the cooling module; The first liquid-cooling medium after the temperature reduction treatment is transported to the first end, and the first liquid-cooling medium is controlled to exchange energy with the first end so that the heat of the first end is removed by the first liquid-cooling medium, or the heat of the first liquid-cooling medium is absorbed by the first end.

9. The energy management method according to claim 7, characterized in that: The second energy exchange end is an evaporation end of a refrigeration mechanism, the vehicle refrigerator is in a cooling mode, and the controlling of the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and the controlling of the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end, include: delivering the second liquid-cooling medium at the first end of the vehicle refrigerator to the evaporation end, controlling the second liquid-cooling medium to exchange energy with the evaporation end, so as to cool the second liquid-cooling medium through the evaporation end; The second liquid-cooling medium after the temperature reduction treatment is delivered to the first end, and the second liquid-cooling medium is controlled to exchange energy with the first end so as to remove heat from the first end through the second liquid-cooling medium.

10. The energy management method according to claim 7, characterized in that: The second energy exchange end is a condensing end of a refrigeration mechanism, the vehicle refrigerator is in a heating mode, and the controlling of the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and the controlling of the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end, include: transporting the third liquid cooling medium at the first end of the vehicle refrigerator to the condensing end, and using the third liquid cooling medium as the condensing medium at the condensing end; Controlling the third liquid-cooling medium to exchange energy with the refrigerant at the condensing end, so as to increase the temperature of the third liquid-cooling medium by the refrigerant at the condensing end; The third liquid-cooling medium after the temperature increase process is delivered to the first end, and the third liquid-cooling medium is controlled to exchange energy with the first end so as to absorb the heat of the third liquid-cooling medium through the first end.

11. The energy management method according to claim 7, characterized in that: The second energy exchange end is a battery module, the vehicle refrigerator is in cooling mode, and the controlling of the liquid-cooled working medium in the working medium circuit to perform energy exchange with the first energy exchange end, and the controlling of the liquid-cooled working medium in the working medium circuit to perform energy exchange with the second energy exchange end include: delivering a fourth liquid cooling medium from the first end of the vehicle refrigerator to the battery module, and controlling the fourth liquid cooling medium to exchange energy with the battery module, so as to increase the temperature of the battery module by the fourth liquid cooling medium; The fourth liquid-cooling medium after energy exchange with the battery module is delivered to the first end, and the fourth liquid-cooling medium is controlled to exchange energy with the first end so as to remove heat from the first end through the fourth liquid-cooling medium.

12. A vehicle, characterized in that: The invention comprises an energy management system according to any one of claims 1 to 6.

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