An energy management system, an energy management method, and a vehicle

Abstract

The application relates to an energy management system, an energy management method and a vehicle, wherein the system comprises: a first energy exchange end arranged as a vehicle-mounted refrigerator; a second energy exchange end arranged as a heat demand end or a cold demand end on the vehicle, and a working medium loop is established between the first energy exchange end and the second energy exchange end; and a working medium drive controls the liquid cooling working medium in the working medium loop to execute energy exchange with the first energy exchange end, and controls 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 technical field of vehicles, in particular to an energy management system, an energy management method and a vehicle. BACKGROUND

[0002] With the development of vehicle technology and the improvement of user living standards, vehicles gradually have various functions. Among them, the vehicle refrigerator is a typical product of automobile consumption upgrading, and more and more vehicles are equipped with vehicle refrigerators. At present, there is no energy exchange between the vehicle refrigerator on the vehicle and other heat demand ends on the vehicle, resulting in low energy utilization rate of the vehicle. SUMMARY

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

[0004] In one aspect, an energy management system is provided, which comprises:

[0005] a first energy exchange end configured as a vehicle refrigerator;

[0006] a second energy exchange end configured as a heat demand end or a cold demand end on the vehicle, and a working medium loop is established between the first energy exchange end and the second energy exchange end;

[0007] a working medium drive configured to control the liquid cooling working medium in the working medium loop to perform energy exchange with the first energy exchange end, and control the liquid cooling working medium in the working medium loop to perform energy exchange with the second energy exchange end.

[0008] In one embodiment, the vehicle refrigerator comprises a refrigerator body, an air cooling mechanism, a refrigeration device and a liquid cooling mechanism, the refrigeration device comprises 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 sequentially arranged, the first end exchanges energy with the liquid cooling working medium in the working medium loop through the liquid cooling mechanism, and the second end exchanges energy with the refrigerator body through the air cooling mechanism.

[0009] In one embodiment, the energy management system further comprises a first heat exchanger and a second heat exchanger, the second energy exchange end is an electric drive end, a cooling module is connected downstream of the electric drive end, a primary side of the first heat exchanger is a working medium loop between the electric drive end and the vehicle refrigerator, a secondary side of the first heat exchanger is the electric drive end, a primary side of the second heat exchanger is a first cold source, and a secondary side of the second heat exchanger is a working medium loop between the electric drive end and the vehicle refrigerator.

[0010] In one of the embodiments, the energy management system further comprises a third heat exchanger, the second energy exchange end is a refrigeration mechanism, the refrigeration mechanism is provided with an evaporation end, the evaporation end forms a primary side of the third heat exchanger, and a secondary side of the third heat exchanger is a working medium loop between the evaporation end and the vehicle-mounted refrigerator.

[0011] In one of the embodiments, the energy management system further comprises a fourth heat exchanger, the second energy exchange end is a refrigeration mechanism, the refrigeration mechanism is provided with a condensation end, a primary side of the fourth heat exchanger is refrigerant of the condensation end, and a secondary side of the fourth heat exchanger is a working medium loop between the condensation end and the vehicle-mounted refrigerator.

[0012] In one of the embodiments, the energy management system further comprises a fifth heat exchanger, the second energy exchange end is a battery module, a primary side of the fifth heat exchanger is a working medium loop between the battery module and the vehicle-mounted refrigerator, and a secondary side of the fifth heat exchanger is the battery module.

[0013] In another aspect, an energy management method is provided, the method comprising:

[0014] determining a vehicle-mounted 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, establishing a working medium loop between the first energy exchange end and the second energy exchange end;

[0015] controlling a liquid cooling working medium in the working medium loop to perform energy exchange with the first energy exchange end, and controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the second energy exchange end.

[0016] In one of the embodiments, the second energy exchange end is an electric drive end, and the controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the first energy exchange end, and the controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the second energy exchange end, comprises:

[0017] delivering a first liquid cooling working medium of a first end of the vehicle-mounted refrigerator to the electric drive end, and controlling the first liquid cooling working medium to perform energy exchange with the electric drive end to take away heat of the electric drive end through the first liquid cooling working medium;

[0018] delivering the first liquid cooling working medium after performing energy exchange with the electric drive end to a cooling module downstream of the electric drive end, and controlling the first liquid cooling working medium to perform energy exchange with the cooling module to perform cooling treatment on the first liquid cooling working medium through the cooling module;

[0019] The first liquid cooling medium after the cooling treatment is delivered to the first end, and the first liquid cooling medium exchanges energy with the first end to take away the heat of the first end by the first liquid cooling medium or absorb the heat of the first liquid cooling medium by the first end.

[0020] In one of the embodiments, the second energy exchange end is an evaporating end of a refrigeration mechanism, the vehicle-mounted refrigerator is in a refrigeration mode, the control of the liquid cooling medium in the working medium circuit to exchange energy with the first energy exchange end and the control of the liquid cooling medium in the working medium circuit to exchange energy with the second energy exchange end include:

[0021] The second liquid cooling medium of the first end of the vehicle-mounted refrigerator is delivered to the evaporating end, and the second liquid cooling medium exchanges energy with the evaporating end to be cooled by the evaporating end;

[0022] The second liquid cooling medium after the cooling treatment is delivered to the first end, and the second liquid cooling medium exchanges energy with the first end to take away the heat of the first end by the second liquid cooling medium.

[0023] In one of the embodiments, the second energy exchange end is a condensing end of a refrigeration mechanism, the vehicle-mounted refrigerator is in a heating mode, the control of the liquid cooling medium in the working medium circuit to exchange energy with the first energy exchange end and the control of the liquid cooling medium in the working medium circuit to exchange energy with the second energy exchange end include:

[0024] The third liquid cooling medium of the first end of the vehicle-mounted refrigerator is delivered to the condensing end, and the third liquid cooling medium is used as the condensing medium of the condensing end;

[0025] The third liquid cooling medium exchanges energy with the refrigerant of the condensing end to be heated by the refrigerant of the condensing end;

[0026] The third liquid cooling medium after the heating treatment is delivered to the first end, and the third liquid cooling medium exchanges energy with the first end to absorb the heat of the third liquid cooling medium by the first end.

[0027] In one of the embodiments, the second energy exchange end is a battery module, the vehicle-mounted refrigerator is in a refrigeration mode, the control of the liquid cooling medium in the working medium circuit to exchange energy with the first energy exchange end and the control of the liquid cooling medium in the working medium circuit to exchange energy with the second energy exchange end include:

[0028] The fourth liquid cooling working medium of the first end of the vehicle-mounted refrigerator is transported to the battery module, and the fourth liquid cooling working medium exchanges energy with the battery module to warm the battery module through the fourth liquid cooling working medium;

[0029] The fourth liquid cooling working medium after exchanging energy with the battery module is transported to the first end, and the fourth liquid cooling working medium exchanges energy with the first end to take away heat of the first end through the fourth liquid cooling working medium.

[0030] In still another aspect, a vehicle is provided, comprising the above energy management system.

[0031] The above technical solutions of the present application have the following advantages compared with the prior art:

[0032] The energy management system of the present application establishes a working medium circuit between the vehicle-mounted refrigerator and other heat demand ends (or cold demand ends) on the vehicle through the liquid cooling working medium, so as to improve the energy utilization rate between the vehicle-mounted refrigerator and other heat demand ends (or cold demand ends) on the vehicle, and further improve the utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0034] Figure 1 is a method flow chart of the energy management method provided by the embodiments of the present application;

[0035] Figure 2 is a system structure diagram of the energy management system provided by the embodiments of the present application;

[0036] Figure 3 is a first system structure diagram of the vehicle-mounted refrigerator and the electric drive end of the energy management system provided by the embodiments of the present application exchanging energy;

[0037] Figure 4 is a second system structure diagram of the vehicle-mounted refrigerator and the electric drive end of the energy management system provided by the embodiments of the present application exchanging energy;

[0038] Figure 5 is a system structure diagram of the vehicle-mounted refrigerator and the evaporating end of the refrigeration mechanism of the energy management system provided by the embodiments of the present application exchanging energy;

[0039] Figure 6This is a system structure diagram of the energy management system provided in this application embodiment, in which the vehicle refrigerator exchanges energy with the electric drive end and the heating mechanism exchanges energy with the condenser end of the cooling mechanism;

[0040] Figure 7 This is a system structure diagram of the energy management system provided in this application embodiment, in which the vehicle refrigerator exchanges energy with the condenser end of the refrigeration mechanism and the electric drive end exchanges energy with the evaporator end of the refrigeration mechanism;

[0041] 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 this application embodiment. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] Example 1

[0044] Reference Figure 1 As shown, Figure 1 This is a flowchart illustrating the energy management method provided in an embodiment of this application.

[0045] The method includes the following steps:

[0046] S101, determine the vehicle-mounted refrigerator as the first energy exchange end, and determine the heat demand end or cold demand end of the vehicle as the second energy exchange end, and establish a working fluid circuit between the first energy exchange end and the second energy exchange end.

[0047] Specifically, the energy management method of this application establishes an energy exchange loop between a first energy exchange terminal and a second energy exchange terminal to improve the energy utilization rate of the vehicle. Further, the first energy exchange terminal of this application is an on-board refrigerator, and the second energy exchange terminal is a heat demand terminal or a cold demand terminal on the vehicle. An energy exchange loop is established between the on-board refrigerator and the heat demand terminal (or cold demand terminal) on the vehicle to realize energy exchange between the on-board refrigerator and the heat demand terminal (or cold demand terminal) on the vehicle, thereby improving the energy utilization rate of the vehicle. The energy exchange between the first energy exchange terminal and the second energy exchange terminal is achieved through a liquid cooling working fluid. Therefore, a working fluid loop is established between the first energy exchange terminal and the second energy exchange terminal to facilitate energy exchange between the first energy exchange terminal and the second energy exchange terminal through the liquid cooling working fluid flowing in the working fluid loop.

[0048] S102, controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the first energy exchange end and controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the second energy exchange end.

[0049] Specifically, since the working medium loop is established between the first energy exchange end and the second energy exchange end, the liquid cooling working medium circulates in the working medium loop, so that when the liquid cooling working medium flows to the first energy exchange end, the liquid cooling working medium exchanges energy with the first energy exchange end at the first energy exchange end, and when the liquid cooling working medium flows to the second energy exchange end, the liquid cooling working medium 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 cooling working medium in the working medium loop, and improve the energy utilization rate of the vehicle.

[0050] The energy management method of the present application establishes a working medium loop between the vehicle-mounted refrigerator and other heat demand ends (or cold demand ends) on the vehicle through the liquid cooling working medium, so as to improve the energy utilization rate between the vehicle-mounted refrigerator and other heat demand ends (or cold demand ends) on the vehicle, and further improve the energy utilization rate.

[0051] In one of the embodiments, the second energy exchange end is an electric drive end, and the controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the first energy exchange end and the controlling the liquid cooling working medium in the working medium loop to perform energy exchange with the second energy exchange end comprises:

[0052] The first liquid cooling working medium of the first end of the vehicle-mounted refrigerator is transported to the electric drive end, and the first liquid cooling working medium exchanges energy with the electric drive end, so as to take away the heat of the electric drive end through the first liquid cooling working medium;

[0053] Specifically, the second energy exchange end of the present application is an electric drive end, that is, an electric motor on the vehicle. A first working medium loop is established between the electric drive end and the vehicle-mounted refrigerator, so as to realize energy exchange between the electric drive end and the vehicle-mounted refrigerator through the liquid cooling working medium. The working medium in the working medium loop between the electric drive end and the vehicle-mounted refrigerator is the first liquid cooling working medium. When the first liquid cooling working medium flows to the electric drive end, the first liquid cooling working medium exchanges energy with the electric drive end, that is, the heat of the electric drive end is taken away through the first liquid cooling working medium.

[0054] The first liquid cooling working medium after exchanging energy with the electric drive end is transported to a cooling module downstream of the electric drive end, and the first liquid cooling working medium exchanges energy with the cooling module, so as to cool the first liquid cooling working medium through the cooling module;

[0055] Specifically, the first liquid cooling working medium circuit is provided with a cooling module, and the cooling module is arranged downstream of the electric drive end. After the first liquid cooling working medium exchanges energy with the electric drive end, the temperature of the electric drive end is reduced, and the temperature of the first liquid cooling working medium is increased. After being heated, the first liquid cooling working medium flows to the cooling module in the first working medium circuit. When the first liquid cooling working medium flows through the cooling module, the first liquid cooling working medium exchanges energy with the cooling module, that is, the temperature of the first liquid cooling working medium is reduced through the cooling module, so that the first liquid cooling working medium exchanges energy with the first end of the vehicle-mounted refrigerator.

[0056] The first liquid cooling working medium subjected to the cooling treatment is delivered to the first end, and the first liquid cooling working medium exchanges energy with the first end, so as to take away the heat of the first end through the first liquid cooling working medium or absorb the heat of the first liquid cooling working medium through the first end.

[0057] Specifically, the refrigeration device of the vehicle-mounted refrigerator adopts a semiconductor device, and the vehicle-mounted refrigerator can be switched between the heating mode and the refrigeration mode by controlling the current direction of the semiconductor device. One end of the semiconductor device away from the refrigerator body forms a first end, and the other end of the semiconductor device close to the refrigerator body and exchanging energy with the refrigerator body forms a second end. When the vehicle-mounted refrigerator is in the refrigeration mode (the first end is a hot end, and the second end is a cold end), the first liquid cooling working medium after exchanging energy with the electric drive end is delivered to the cooling module. After the first liquid cooling working medium exchanges energy with the cooling module, the temperature of the first liquid cooling working medium is reduced, and the temperature of the first liquid cooling working medium is lower than the temperature of the first end. When the first liquid cooling working medium flows through the first end, the first liquid cooling working medium exchanges energy with the first end, so as to take away the heat of the first end through the first liquid cooling working medium, thereby improving the refrigeration efficiency of the vehicle-mounted refrigerator. The temperature of the first liquid cooling working medium after exchanging energy with the first end is increased, and the first liquid cooling working medium with the increased temperature flows to the electric drive end. Although the temperature of the first liquid cooling working medium is increased, the temperature of the first liquid cooling working medium is still much lower than the temperature of the electric drive end. Therefore, the first liquid cooling working medium after being heated can still absorb the heat of the electric drive end. When the vehicle-mounted refrigerator is in the heating mode (the first end is a cold end, and the second end is a hot end), the first liquid cooling working medium after exchanging energy with the electric drive end is delivered to the cooling module. After the first liquid cooling working medium exchanges energy with the cooling module, the temperature of the first liquid cooling working medium is reduced, but the temperature of the first liquid cooling working medium is higher than the temperature of the first end. When the first liquid cooling working medium flows through the first end, the first liquid cooling working medium exchanges energy with the first end, so as to absorb the heat of the first liquid cooling working medium through the first end, thereby improving the heating efficiency of the vehicle-mounted refrigerator. The temperature of the first liquid cooling working medium after exchanging energy with the first end is reduced, and the first liquid cooling working medium with the reduced temperature flows to the electric drive end, so as to absorb the heat of the electric drive end through the first liquid cooling working medium after being cooled.

[0058] In one of the embodiments, the second energy exchange end is the evaporating end of the refrigeration mechanism, the vehicle-mounted refrigerator is in the refrigeration mode, the liquid cooling working medium in the working medium loop is controlled to perform energy exchange with the first energy exchange end, and the liquid cooling working medium in the working medium loop is controlled to perform energy exchange with the second energy exchange end, including:

[0059] The second liquid cooling working medium of the first end of the vehicle-mounted refrigerator is transported to the evaporating end, and the second liquid cooling working medium is controlled to perform energy exchange with the evaporating end to perform cooling treatment on the second liquid cooling working medium by the evaporating end;

[0060] Specifically, the second energy exchange end of the present application is the evaporating end of the refrigeration mechanism, the evaporating end absorbs heat from the environment to reduce the temperature of the environment, a second working medium loop is established between the evaporating end and the vehicle-mounted refrigerator to realize energy exchange between the evaporating end and the vehicle-mounted refrigerator through the second liquid cooling working medium, and the working medium in the second working medium loop between the evaporating end and the vehicle-mounted refrigerator is the second liquid cooling working medium. Further, when the vehicle-mounted refrigerator and the evaporating end exchange energy through the second liquid cooling working medium, the vehicle-mounted refrigerator is in the refrigeration mode, the second liquid cooling working medium of the first end (hot end) of the vehicle-mounted refrigerator is transported to the evaporating end, so that the evaporating end exchanges energy with the second liquid cooling working medium, that is, the second liquid cooling working medium is cooled by the evaporating end. The evaporating end of the refrigeration mechanism is the heat demand end.

[0061] The second liquid cooling working medium after the cooling treatment is transported to the first end, and the second liquid cooling working medium is controlled to exchange energy with the first end to take away the heat of the first end through the second liquid cooling working medium.

[0062] Specifically, after the second liquid cooling working medium is cooled by the evaporating end, the second liquid cooling working medium is transported to the first end of the vehicle-mounted refrigerator in the second working medium loop, so that the second liquid cooling working medium exchanges energy with the first end, that is, the heat of the first end of the vehicle-mounted refrigerator is taken away by the second liquid cooling working medium, and the refrigeration efficiency of the vehicle-mounted refrigerator is improved.

[0063] In one of the embodiments, the method further includes:

[0064] The heating mechanism on the vehicle is determined as the third energy exchange end, and the liquid cooling working medium in the heating self-circulation loop where the heating mechanism is located is determined as the heating self-circulation working medium;

[0065] Specifically, the heating mechanism of the present application exchanges energy between the third energy exchange end and the condensing end of the refrigeration mechanism. Specifically, the heating mechanism is arranged in the heating self-circulation loop, the liquid cooling working medium in the heating self-circulation loop is the heating self-circulation working medium, and the heating self-circulation working medium exchanges energy with the condensing end of the refrigeration mechanism.

[0066] The heating self-circulation working medium is used as the condensing medium of the refrigerant in the refrigeration mechanism, and energy exchange is performed between the heating self-circulation working medium and the refrigerant at the condensing end, so that the heating self-circulation working medium is warmed by the refrigerant at the condensing end.

[0067] Specifically, the refrigeration mechanism includes four working processes of compression, condensation, throttling and evaporation. After the refrigerant passes through the compression process, it becomes high-temperature and high-pressure gas, and the high-temperature and high-pressure gas is condensed into liquid in the condenser of the condensing end. The heating self-circulation working medium in the heating self-circulation circuit is used as the condensing medium of the high-temperature and high-pressure gas, so that the condensation of the high-temperature and high-pressure gas is realized through the heating self-circulation working medium, that is, the high-temperature and high-pressure gas exchanges energy with the heating self-circulation working medium, the temperature of the high-temperature and high-pressure gas is lowered, and the temperature of the heating self-circulation working medium is raised, so that the heating self-circulation working medium with raised temperature provides warm air for the warm air mechanism.

[0068] The heating self-circulation working medium after the warming treatment exchanges energy with the external environment through the warm air mechanism to raise the temperature of the external environment.

[0069] Specifically, the high-temperature and high-pressure gas exchanges energy with the heating self-circulation working medium, and the temperature of the heating self-circulation working medium is raised. The heating self-circulation working medium after the temperature rise is transported to the warm air mechanism through the heating self-circulation circuit, and the heating self-circulation working medium exchanges energy with the external environment through the warm air mechanism to raise the temperature of the external environment, such as the cab, that is, to raise the temperature of the cab.

[0070] In one of the embodiments, the second energy exchange end is the condensing end of the refrigeration mechanism, the vehicle-mounted refrigerator is in the heating mode, the liquid cooling working medium in the working medium circuit exchanges energy with the first energy exchange end, and the liquid cooling working medium in the working medium circuit exchanges energy with the second energy exchange end, including:

[0071] The third liquid cooling working medium at the first end of the vehicle-mounted refrigerator is transported to the condensing end, and the third liquid cooling working medium is used as the condensing medium of the condensing end.

[0072] Specifically, the second energy exchange end of the present application is the condensing end of the refrigeration mechanism, and a third working medium circuit is established between the condensing end and the vehicle-mounted refrigerator to realize energy exchange between the condensing end and the vehicle-mounted refrigerator through the third liquid cooling working medium, wherein the working medium in the third working medium circuit is the third liquid cooling working medium. In addition, the condensing end needs a condensing medium, and the third liquid cooling working medium is used as the condensing medium of the condensing end. The condensing end of the refrigeration mechanism is the cold demand end.

[0073] The third liquid cooling working medium exchanges energy with the refrigerant at the condensing end to warm the third liquid cooling working medium by the refrigerant at the condensing end.

[0074] Specifically, the condenser of the condensing end performs condensation, that is, energy exchange between the refrigerant and the condensing medium, and the condensing medium is the third liquid cooling medium, and then energy exchange occurs between the third liquid cooling medium and the refrigerant. The refrigerant entering the condensing end is a high-temperature and high-pressure gas, which is changed into a liquid after energy exchange with the third liquid cooling medium, and the temperature of the third liquid cooling medium is increased.

[0075] The third liquid cooling medium after the temperature increasing treatment is transported to the first end, and energy exchange is controlled between the third liquid cooling medium and the first end, so as to absorb the heat of the third liquid cooling medium by the first end.

[0076] Specifically, the high-temperature and high-pressure gas refrigerant exchanges energy with the third liquid cooling medium, and the temperature of the third liquid cooling medium is increased. The third liquid cooling medium after the temperature increasing treatment is transported to the first end of the vehicle-mounted refrigerator in the third working medium circuit, so as to exchange energy between the first end and the third liquid cooling medium, that is, the first end absorbs the heat of the third liquid cooling medium, and the heating efficiency of the vehicle-mounted refrigerator is improved. Further, when the condensing end of the refrigeration mechanism exchanges energy with the vehicle-mounted refrigerator, the vehicle-mounted refrigerator is in the heating mode, that is, the first end is the cold end, and the second end is the hot end.

[0077] In one of the embodiments, the second energy exchange end is a battery module, the vehicle-mounted refrigerator is in the refrigeration mode, and the liquid cooling medium in the working medium circuit exchanges energy with the first energy exchange end and the second energy exchange end, comprising:

[0078] The fourth liquid cooling medium of the first end of the vehicle-mounted refrigerator is transported to the battery module, and energy exchange is controlled between the fourth liquid cooling medium and the battery module, so as to increase the temperature of the battery module by the fourth liquid cooling medium;

[0079] Specifically, the second energy exchange end of the present application is a battery module, that is, a power supply battery on the vehicle. A fourth working medium circuit is established between the battery module and the vehicle-mounted refrigerator to exchange energy between the battery module and the vehicle-mounted refrigerator through the fourth liquid cooling medium. The liquid cooling medium in the fourth working medium circuit is the fourth liquid cooling medium. Further, when the vehicle-mounted refrigerator exchanges energy with the battery module through the fourth liquid cooling medium, the vehicle-mounted refrigerator is in the refrigeration mode. The fourth liquid cooling medium of the first end (hot end) of the vehicle-mounted refrigerator is transported to the battery module, so as to exchange energy between the battery module and the fourth liquid cooling medium, that is, to increase the temperature of the battery module by the fourth liquid cooling medium. The battery module is a heat demand end.

[0080] The fourth liquid cooling medium after the energy exchange with the battery module is transported to the first end, and energy exchange is controlled between the fourth liquid cooling medium and the first end, so as to take away the heat of the first end by the fourth liquid cooling medium.

[0081] 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 carried away by the fourth liquid cooling medium.

[0082] In one embodiment, the vehicle-mounted refrigerator includes a heating mode and a cooling mode, and the method further includes:

[0083] Switch the positive and negative terminals of the semiconductor devices on the car refrigerator to switch the car refrigerator from heating mode to cooling mode, or switch the car refrigerator from cooling mode to heating mode.

[0084] Specifically, the car refrigerator is made using a thermoelectric cooler (TEC), a solid-state heat pump device based on the Peltier effect, which achieves precise temperature control via direct current. Because the Peltier effect is reversible, the car refrigerator can simultaneously operate in both cooling and heating modes. 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 polarity of the power supply to the thermoelectric cooler is switched, the hot and cold ends immediately reverse, meaning the first end becomes the cold end and the second end becomes the hot end, at which point the car refrigerator is in heating mode. Therefore, by switching the positive and negative terminals of the thermoelectric cooler, the car refrigerator can switch between heating and cooling modes.

[0085] Example 2

[0086] Reference Figures 2-8 As shown, Figures 2-8 This is a system architecture diagram of the energy management system provided in an embodiment of this application. Figures 2-8 The dashed lines indicate that the modules do not participate in the normal operation of the corresponding mode, while the solid lines indicate that the modules operate normally in the corresponding mode.

[0087] The energy management system of this embodiment includes:

[0088] The first energy exchange terminal is set up as a vehicle refrigerator;

[0089] The second energy exchange end is set as the heat demand end or cold demand end on the vehicle, and a working fluid circuit is established between it and the first energy exchange end.

[0090] 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 terminal, and to control the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the second energy exchange terminal.

[0091] The first energy exchange end of the application is a vehicle-mounted 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 vehicle-mounted refrigerator and the heat demand end or the cold demand end on the vehicle to realize energy exchange between the vehicle-mounted refrigerator and the heat demand end or the cold 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 working 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 working medium circulating in the working medium circuit. The flow power of the liquid cooling working medium is provided by a working medium driver such as a water pump. In addition, the working medium circuit between the vehicle-mounted refrigerator and the heat demand end or the cold demand end is constructed by corresponding pipelines and valves such as a ten-way valve. The switching between different working modes is realized by controlling the opening and closing of each pipeline on the ten-way valve.

[0092] In one embodiment, the vehicle-mounted refrigerator comprises a refrigerator body, an air cooling mechanism, a refrigeration device, and a liquid cooling mechanism. The refrigeration device comprises 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 sequentially arranged. The first end exchanges energy with a liquid cooling working medium in a working medium circuit through the liquid cooling mechanism. The second end exchanges energy with the refrigerator body through the air cooling mechanism.

[0093] The vehicle-mounted refrigerator of the application comprises a refrigerator body, an air cooling mechanism, a second end, a first end, and a liquid cooling mechanism arranged in sequence. Specifically, as shown in Figure 2 The refrigerator body is used to store corresponding objects such as beverages and ice pops. The refrigeration device of the vehicle-mounted refrigerator adopts a semiconductor device. The semiconductor device comprises a first end and a second end. When the vehicle-mounted refrigerator is in a refrigeration 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 the air cooling mechanism, i.e., the second end cools the refrigerator body through the air cooling mechanism. The first end exchanges energy with a liquid cooling working medium through the liquid cooling mechanism, i.e., the liquid cooling working medium absorbs heat from the first end through the liquid cooling mechanism such as a liquid cooling plate. When the vehicle-mounted refrigerator is in a 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, i.e., the second end heats the refrigerator body through the air cooling mechanism. The first end exchanges energy with the liquid cooling working medium through the liquid cooling mechanism, i.e., the first end absorbs heat from the liquid cooling working medium through the liquid cooling mechanism such as a liquid cooling plate. One end of the air cooling mechanism is in contact with the second end of the vehicle-mounted 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-mounted refrigerator, and the other end of the liquid cooling mechanism (liquid cooling plate) circulates the first liquid cooling working medium.

[0094] In one embodiment, the energy management system further includes a first heat exchanger and a second heat exchanger. The second energy exchange end is an electric drive end, and a cooling module is connected downstream of the electric drive end. The primary side of the first heat exchanger is a 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 a first cold source, and the secondary side of the second heat exchanger is a working fluid circuit between the electric drive end and the vehicle refrigerator.

[0095] This application involves energy exchange between the vehicle-mounted refrigerator and the electric drive unit to improve energy utilization. Specifically, such as... Figure 3 and Figure 4The working mode is shown, and the vehicle-mounted refrigerator is connected with the electric drive end through the ten-way valve. The output side of the first end of the vehicle-mounted refrigerator, the 3# port of the ten-way valve, the 9# port of the ten-way valve, the primary side inlet of the first heat exchanger, the primary side outlet of the first heat exchanger, the secondary side inlet of the second heat exchanger, the secondary side outlet of the second heat exchanger, the 10# port of the ten-way valve, the 4# port of the ten-way valve, and the input side of the first end are sequentially connected to form a working medium circuit, so as to establish a first working medium circuit between the vehicle-mounted refrigerator, the electric drive end, and the cooling module. A first liquid cooling medium flows in the first working medium circuit, and therefore, the first liquid cooling medium circulates between the first end of the vehicle-mounted refrigerator, the electric drive end, and the cooling module. Further, a radiator water pump is arranged between the output side of the first end of the vehicle-mounted refrigerator and the 3# port of the ten-way valve on the first working medium circuit, and the radiator water pump is used to provide a power source for the circulation of the first liquid cooling medium in the first working medium circuit. In addition, the electric drive end and the first liquid cooling medium exchange energy through the first heat exchanger (arranged on the electric drive end, not shown in the figure), the primary side of the first heat exchanger is the first working medium circuit, and the secondary side of the first heat exchanger is the electric drive end. The cooling module and the first liquid cooling medium exchange energy through the second heat exchanger (arranged on the cooling module, not shown in the figure), the primary side of the second heat exchanger is the first cold source, which can adopt a radiator fan, and the secondary side of the second heat exchanger is the first working medium circuit. The cooling module is arranged on the first working medium circuit and located between the electric drive end and the 10# port of the ten-way valve. The 9# port of the ten-way valve and the input side of the electric drive end on the first working medium circuit are provided with a motor water pump, and the motor water pump and the radiator water pump jointly provide a power source for the circulation of the first liquid cooling medium in the working medium circuit. When the vehicle-mounted refrigerator is in the refrigeration mode, the first liquid cooling 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 cooling medium. The temperature of the first liquid cooling medium rises, the first liquid cooling medium after rising in temperature is transported to the second heat exchanger, the first liquid cooling medium exchanges energy with the external environment through the second heat exchanger, the heat of the first liquid cooling medium is dissipated to the external environment, the temperature of the first liquid cooling medium decreases, and the temperature of the first liquid cooling medium is lower than the temperature of the first end. When the first liquid cooling medium flows through the first end, the first liquid cooling medium exchanges energy with the first end to take away the heat of the first end through the first liquid cooling medium and improve the refrigeration efficiency of the vehicle-mounted refrigerator. The temperature of the first liquid cooling medium after exchanging energy with the first end rises, and the first liquid cooling medium after rising in temperature flows to the electric drive end. Although the temperature of the first liquid cooling medium rises, the temperature of the first liquid cooling medium is still much lower than the temperature of the electric drive end, and therefore, the first liquid cooling medium after rising in temperature can still absorb the heat of the electric drive end.When the vehicle-mounted refrigerator is in the heating mode, the first liquid cooling 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 cooling medium, the temperature of the first liquid cooling medium is increased, the first liquid cooling medium after temperature rise is transported to the second heat exchanger, the first liquid cooling medium exchanges energy with the external environment through the second heat exchanger, the heat of the first liquid cooling medium is dissipated to the external environment, the temperature of the first liquid cooling medium is reduced, but the temperature of the first liquid cooling medium is higher than the temperature of the first end, when the first liquid cooling medium flows through the first end, the first liquid cooling medium exchanges energy with the first end to absorb the heat of the first liquid cooling medium by the first end, so as to improve the heating efficiency of the vehicle-mounted refrigerator; the temperature of the first liquid cooling medium after energy exchange with the first end is reduced, and the first liquid cooling medium with reduced temperature flows to the electric drive end to absorb the heat of the electric drive end through the first liquid cooling medium after temperature reduction.

[0096] In one of the embodiments, the energy management system further comprises a third heat exchanger, the second energy exchange end is a refrigeration mechanism, the refrigeration mechanism is provided with an evaporation end, the evaporation end forms a primary side of the third heat exchanger, and a secondary side of the third heat exchanger is a working medium circuit between the evaporation end and the vehicle-mounted refrigerator.

[0097] The vehicle-mounted refrigerator and the refrigeration mechanism of the present application exchange energy to improve energy utilization. Specifically, as Figure 5In the working mode shown, the vehicle-mounted refrigerator is connected to the evaporating end of the refrigeration mechanism through the ten-way valve. The output side of the first end of the vehicle-mounted refrigerator, the No. 3 port of the ten-way valve, the No. 6 port of the ten-way valve, the secondary side inlet of the third heat exchanger, the secondary side outlet of the third heat exchanger, the No. 5 port of the ten-way valve, the No. 4 port of the ten-way valve, and the input side of the first end are sequentially connected to form a working medium circuit, so as to establish a second working medium circuit between the vehicle-mounted refrigerator and the refrigeration mechanism. The second working medium circuit circulates the second liquid cooling working medium, so that the second liquid cooling working medium circulates between the first end of the vehicle-mounted refrigerator and the evaporating end of the refrigeration mechanism. Further, a radiator water pump is arranged between the output side of the first end of the vehicle-mounted refrigerator and the No. 3 port of the ten-way valve on the second working medium circuit. The radiator water pump is used to provide a power source for the circulation of the second liquid cooling working medium in the working medium circuit. In this mode, the vehicle-mounted refrigerator is in a refrigeration mode. The first end of the vehicle-mounted refrigerator exchanges energy with the second liquid cooling working medium to remove the heat of the first end through the second liquid cooling working medium. After the second liquid cooling working medium exchanges energy with the first end, the temperature of the second liquid cooling working medium is increased. The second liquid cooling working medium after being heated circulates to the third heat exchanger in the second working medium circuit. The second liquid cooling working medium exchanges energy between the secondary side and the primary side of the third heat exchanger. The primary side of the third heat exchanger is the evaporating end of the refrigeration mechanism (the refrigerant evaporates and absorbs heat, and the temperature of the primary side is reduced). The secondary side of the third heat exchanger is the second liquid cooling working medium. That is, the evaporating end of the refrigeration mechanism is used to cool the second liquid cooling working medium, so that the temperature of the second liquid cooling working medium is reduced. The second liquid cooling working medium after being cooled is transported to the first end of the vehicle-mounted refrigerator and exchanges energy with the first end to remove the heat of the first end through the second liquid cooling working medium, thereby improving the refrigeration efficiency of the vehicle-mounted refrigerator. The evaporating end of the refrigeration mechanism includes a first evaporating end and a second evaporating end. The first evaporating end exchanges energy with the second liquid cooling working medium to reduce the temperature of the second liquid cooling working medium. The second evaporating end is used for air conditioning refrigeration. The first evaporating end and the second evaporating end can work simultaneously or independently according to actual needs.

[0098] In one embodiment, the energy management system further includes a fourth heat exchanger. The second energy exchange end is a refrigeration mechanism. The refrigeration mechanism is provided with a condensing end. The primary side of the fourth heat exchanger is the refrigerant of the condensing end. The secondary side of the fourth heat exchanger is the working medium circuit between the condensing end and the vehicle-mounted refrigerator.

[0099] The vehicle-mounted refrigerator of the present application exchanges energy with the condensing end of the refrigeration mechanism to improve energy utilization. Specifically, as shown in FIG. 1, the vehicle-mounted refrigerator is connected to the condensing end of the refrigeration mechanism through the ten-way valve. The output side of the first end of the vehicle-mounted refrigerator, the No. 3 port of the ten-way valve, the No. 6 port of the ten-way valve, the secondary side inlet of the third heat exchanger, the secondary side outlet of the third heat exchanger, the No. 5 port of the ten-way valve, the No. 4 port of the ten-way valve, and the input side of the first end are sequentially connected to form a working medium circuit, so as to establish a second working medium circuit between the vehicle-mounted refrigerator and the refrigeration mechanism. The second working medium circuit circulates the second liquid cooling working medium, so that the second liquid cooling working medium circulates between the first end of the vehicle-mounted refrigerator and the evaporating end of the refrigeration mechanism. Further, a radiator water pump is arranged between the output side of the first end of the vehicle-mounted refrigerator and the No. 3 port of the ten-way valve on the second working medium circuit. The radiator water pump is used to provide a power source for the circulation of the second liquid cooling working medium in the working medium circuit. In this mode, the vehicle-mounted refrigerator is in a refrigeration mode. The first end of the vehicle-mounted refrigerator exchanges energy with the second liquid cooling working medium to remove the heat of the first end through the second liquid cooling working medium. After the second liquid cooling working medium exchanges energy with the first end, the temperature of the second liquid cooling working medium is increased. The second liquid cooling working medium after being heated circulates to the third heat exchanger in the second working medium circuit. The second liquid cooling working medium exchanges energy between the secondary side and the primary side of the third heat exchanger. The primary side of the third heat exchanger is the evaporating end of the refrigeration mechanism (the refrigerant evaporates and absorbs heat, and the temperature of the primary side is reduced). The secondary side of the third heat exchanger is the second liquid cooling working medium. That is, the evaporating end of the refrigeration mechanism is used to cool the second liquid cooling working medium, so that the temperature of the second liquid cooling working medium is reduced. The second liquid cooling working medium after being cooled is transported to the first end of the vehicle-mounted refrigerator and exchanges energy with the first end to remove the heat of the first end through the second liquid cooling working medium, thereby improving the refrigeration efficiency of the vehicle-mounted refrigerator. The evaporating end of the refrigeration mechanism includes a first evaporating end and a second evaporating end. The first evaporating end exchanges energy with the second liquid cooling working medium to reduce the temperature of the second liquid cooling working medium. The second evaporating end is used for air conditioning refrigeration. The first evaporating end and the second evaporating end can work simultaneously or independently according to actual needs. Figure 7The operating mode shown is such that the vehicle-mounted refrigerator and the condenser end of the refrigeration mechanism are connected via a ten-way valve. The output side of the first end of the vehicle-mounted refrigerator, port 3 of the ten-way valve, port 1 of the ten-way valve, the secondary inlet and 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, establishing a third working fluid circuit between the vehicle-mounted refrigerator and the condenser end of the refrigeration mechanism. A third liquid refrigerant flows within this third working fluid circuit, thus circulating between the first end of the vehicle-mounted refrigerator and the condenser end of the refrigeration mechanism. Furthermore, a radiator water pump is installed between the output side of the first end of the vehicle-mounted refrigerator and port 3 of the ten-way valve in the third working fluid circuit. This radiator water pump provides the power source for the circulation of the third liquid refrigerant in the working fluid circuit. In this mode, the vehicle refrigerator operates in heating mode. The first end of the vehicle refrigerator exchanges energy with the third liquid refrigerant, absorbing heat from it. After this energy exchange, the temperature of the third liquid refrigerant decreases, flowing through the third refrigerant circuit to the fourth heat exchanger (the condenser at the condensing end is the fourth heat exchanger). Energy exchange occurs 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 (the refrigerant releases heat upon condensation), while the secondary side contains the third liquid refrigerant (the condensing medium). In other words, the refrigerant from the refrigeration mechanism heats the third liquid refrigerant, increasing its temperature. This heated third liquid refrigerant is then delivered to the first end of the vehicle refrigerator, facilitating its absorption of heat and improving the refrigerator's heating efficiency. A heater pump is installed between port #1 of the ten-way valve and the secondary inlet of the fourth heat exchanger, while the secondary outlet at the condensing end is connected to port #2 of the ten-way valve. That is, in order to improve energy exchange efficiency, this application uses a portion of the heating pipeline to form a third working fluid loop, realizing energy exchange between the third liquid cooling working fluid and the refrigerant. Simultaneously, in this mode, there is also energy exchange between the electric drive end and the evaporator end of the refrigeration mechanism to further improve energy utilization. Specifically, such as... Figure 7As shown, the electric drive end and the evaporating end of the refrigeration mechanism are connected through the ten-way valve. The first heat exchanger primary side outlet, the second heat exchanger secondary side inlet, the second heat exchanger secondary side outlet, the 10# port of the ten-way valve, the 6# port of the ten-way valve, the third heat exchanger secondary side inlet, the third heat exchanger secondary side outlet, the 5# port of the ten-way valve, the 9# port of the ten-way valve, and the first heat exchanger primary side inlet are sequentially connected to form a working medium circuit, so as to establish a fifth working medium circuit between the electric drive end and the evaporating end, and the fifth liquid cooling working medium flows in the fifth working medium circuit. Therefore, the fifth liquid cooling working medium circulates between the electric drive end and the evaporating end. The 9# port of the ten-way valve on the fifth working medium circuit and the input side of the electric drive end are provided with a motor water pump, and the motor water pump provides a power source for the circulation of the fifth liquid cooling working medium in the fifth working medium circuit. In this mode, the vehicle-mounted refrigerator is in a heating mode, and the fifth liquid cooling 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 cooling working medium. The temperature of the fifth liquid cooling working medium is increased, and the fifth liquid cooling working medium after being increased in temperature is transported to the second heat exchanger. The fifth liquid cooling working medium exchanges energy with the external environment through the second heat exchanger, and the heat of the fifth liquid cooling working medium is dissipated to the external environment. The temperature of the fifth liquid cooling working medium is reduced, and the fifth liquid cooling working medium after being reduced in temperature is transported to the third heat exchanger. The fifth liquid cooling working medium exchanges energy with the evaporating end through the third heat exchanger, that is, the temperature of the fifth liquid cooling working medium is reduced through the evaporating end. The fifth liquid cooling working medium after being reduced in temperature is transported to the first heat exchanger to exchange energy with the electric drive end through the fifth liquid cooling working medium, and the heat of the electric drive end is taken away through the fifth liquid cooling working medium.

[0100] In one of the embodiments, the energy management system further comprises a third heat exchanger, a fourth heat exchanger, and a third energy exchange end. The second energy exchange end is the evaporating end of the refrigeration mechanism, and the third energy exchange end is the warm air mechanism. The third heat exchanger is used for energy exchange between the vehicle-mounted refrigerator and the evaporating end of the refrigeration mechanism, and the fourth heat exchanger is used for energy exchange between the warm air mechanism and the condensing end of the refrigeration mechanism.

[0101] The vehicle-mounted refrigerator of the present application exchanges energy with the evaporating end of the refrigeration mechanism, and the condensing end of the refrigeration mechanism exchanges energy with the warm air mechanism, so as to improve the energy utilization rate. Specifically, as shown in FIG. 1, the vehicle-mounted refrigerator is connected to the evaporating end of the refrigeration mechanism through the first heat exchanger, and the condensing end of the refrigeration mechanism is connected to the warm air mechanism through the second heat exchanger. Figure 6In the working mode shown, the vehicle-mounted refrigerator is connected in communication with the evaporating end of the refrigeration mechanism through the ten-way valve. The output side of the first end of the vehicle-mounted refrigerator, the No. 3 port of the ten-way valve, the No. 6 port of the ten-way valve, the secondary side inlet of the third heat exchanger, the secondary side outlet of the third heat exchanger, the No. 5 port of the ten-way valve, the No. 4 port of the ten-way valve, and the input side of the first end are sequentially connected in communication to form a working medium circuit, so as to establish a second working medium circuit between the vehicle-mounted refrigerator and the refrigeration mechanism. The second working medium circuit circulates the second liquid cooling working medium, and therefore, the second liquid cooling working medium circulates between the first end of the vehicle-mounted refrigerator and the evaporating end of the refrigeration mechanism. Further, a radiator water pump is arranged between the output side of the first end of the vehicle-mounted refrigerator and the No. 3 port of the ten-way valve on the second working medium circuit, and the radiator water pump is used to provide a power source for the circulation of the second liquid cooling working medium in the working medium circuit. In this mode, the vehicle-mounted refrigerator is in a refrigeration mode, and the first end of the vehicle-mounted refrigerator exchanges energy with the second liquid cooling working medium, so as to remove the heat of the first end through the second liquid cooling working medium. After the second liquid cooling working medium exchanges energy with the first end, the temperature of the second liquid cooling working medium is increased, and the second liquid cooling working medium is circulated to the third heat exchanger in the second working medium circuit. The second heat exchanger exchanges energy between the secondary side and the primary side, the primary side of the second heat exchanger is the evaporating end of the refrigeration mechanism (the refrigerant evaporates and absorbs heat, and the temperature of the primary side is reduced), and the secondary side of the second heat exchanger is the second liquid cooling working medium. That is, the evaporating end of the refrigeration mechanism is used to cool the second liquid cooling working medium, so that the temperature of the second liquid cooling working medium is reduced. The cooled second liquid cooling working medium is transported to the first end of the vehicle-mounted refrigerator, and the cooled first liquid cooling working medium exchanges energy with the first end, so as to remove the heat of the first end, and improve the refrigeration efficiency of the vehicle-mounted refrigerator. Figure 6As shown, the secondary side inlet of the fourth heat exchanger, the air heating mechanism, the air heating water pump and the secondary side outlet of the fourth heat exchanger are sequentially connected to form a heating self-circulation loop, the heating self-circulation loop circulates the heating self-circulation working medium, and the air heating water pump provides a power source for the circulation of the heating self-circulation working medium in the heating self-circulation loop. The refrigeration mechanism includes four working processes of compression, condensation, throttling and evaporation. After the refrigerant passes through the compression process, it becomes a high-temperature and high-pressure gas. The high-temperature and high-pressure gas is condensed 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-circulation working medium, so as to realize the energy exchange between the condensing end of the refrigeration mechanism and the air heating mechanism. The heating self-circulation working medium is used as the condensing medium of the condensing end. The refrigerant entering the condensing end is a high-temperature and high-pressure gas. After the high-temperature and high-pressure gas exchanges energy with the heating self-circulation working medium, the high-temperature and high-pressure gas becomes a liquid, the temperature of the heating self-circulation working medium rises, and the heated heating self-circulation working medium is transported to the air heating mechanism in the heating self-circulation working medium loop. The heating self-circulation working medium exchanges energy with the external environment at the air heating mechanism. After the heating self-circulation working medium exchanges energy with the external environment, the temperature of the external environment rises, and the temperature of the heating self-circulation working medium decreases. The cooled heating self-circulation working medium is transported to the condensing end to exchange energy with the refrigerant, so as to increase the temperature of the heating self-circulation working medium through the refrigerant.

[0102] 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 medium loop between the battery module and the vehicle-mounted refrigerator, and the secondary side of the fifth heat exchanger is the battery module.

[0103] The vehicle-mounted refrigerator and the battery module of the present application exchange energy to improve energy utilization. Specifically, as shown in FIG. 1, the vehicle-mounted refrigerator includes a refrigeration mechanism, a first heat exchanger, a second heat exchanger, a third heat exchanger and a fourth heat exchanger. Figure 8In the shown working mode, the vehicle-mounted refrigerator is connected with the battery module through the ten-way valve. The output side of the first end of the vehicle-mounted refrigerator, the No. 3 port of the ten-way valve, the No. 7 port of the ten-way valve, the primary side inlet of the fifth heat exchanger, the primary side outlet of the fifth heat exchanger, the No. 8 port of the ten-way valve, the No. 4 port of the ten-way valve, and the input side of the first end are sequentially connected to form a working medium circuit, so as to establish a fourth working medium circuit between the vehicle-mounted refrigerator and the battery module. The fourth working medium circulates in the fourth working medium circuit. Further, the radiator water pump is arranged between the output side of the first end of the vehicle-mounted refrigerator and the No. 3 port of the ten-way valve on the fourth working medium circuit, and the battery water pump is arranged between the No. 7 port 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 medium in the fourth working medium circuit. In this mode, the vehicle-mounted refrigerator is in a refrigeration mode. The first end of the vehicle-mounted refrigerator exchanges energy with the fourth liquid cooling working medium to remove the heat of the first end through the fourth liquid cooling working medium. The temperature of the fourth liquid cooling working medium is increased after the energy exchange between the fourth liquid cooling working medium and the first end. The fourth liquid cooling working medium is transported to the fifth heat exchanger (not shown in the figure) arranged in the battery module. The primary side of the fifth heat exchanger exchanges energy with the secondary side of the fifth heat exchanger. The primary side of the fifth heat exchanger is the fourth liquid cooling working 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 working medium exchanges energy with the battery module to increase the temperature of the battery module on the secondary side through the fourth liquid cooling working medium. The temperature of the fourth liquid cooling working medium is reduced after the energy exchange between the fourth liquid cooling working medium and the battery module. The fourth liquid cooling working medium is transported to the first end. The fourth liquid cooling working medium exchanges energy with the first end to remove the heat of the first end through the fourth liquid cooling working medium, thereby improving the refrigeration efficiency of the vehicle-mounted refrigerator.

[0104] The specific limitations of the energy management system can be referred to the limitations of the method in the foregoing, which will not be repeated here. Each module in the above energy management system can be realized by software, hardware, or a combination thereof, in whole or in part. Each module can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to each module.

[0105] Embodiment three

[0106] The embodiment provides a vehicle, which comprises the above energy management system, and the energy management system comprises:

[0107] The first energy exchange end is arranged as a vehicle-mounted refrigerator.

[0108] The second energy exchange end is arranged 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.

[0109] The working medium drives the liquid cooling working medium in the working medium circuit to perform energy exchange with the first energy exchange end and the second energy exchange end.

[0110] The energy management system of the present application establishes an energy exchange circuit between the vehicle-mounted refrigerator and other heat demand ends or cold demand ends on the vehicle through the liquid cooling working medium, so as to improve the energy utilization rate between the vehicle-mounted refrigerator and other heat demand ends or cold demand ends on the vehicle, thereby improving the energy utilization rate of the vehicle.

[0111] In addition, the vehicle is provided with a controller, and the energy management system is controlled to work in different modes through the controller, that is, the second energy exchange end is controlled to be the electric drive end, the evaporation end of the refrigeration mechanism, the condensation end of the refrigeration mechanism or the battery module, the third energy exchange end is controlled to be the heating mechanism, and the working port of the electromagnetic valve (ten-way valve) between the first energy exchange end and the second energy exchange end is controlled to control the switching between different working medium circuits. Among them, the user can actively control the energy management system to work in the corresponding mode through the vehicle-mounted system of the vehicle, or the energy management system can be automatically controlled to work in the corresponding mode by the controller, so as to realize the energy exchange between the first energy exchange end and the second energy exchange end. When energy exchange is needed, the corresponding second energy exchange end can be selected for energy exchange according to the energy demand of the first energy exchange end, such as the vehicle-mounted refrigerator as the first energy exchange end in the refrigeration mode, when the hot end needs larger cold quantity for heat dissipation, the evaporation end of the refrigeration mechanism can be selected as the second energy exchange end, and when the hot end needs smaller cold quantity 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, such as the vehicle-mounted refrigerator in the refrigeration mode, if the evaporation end of the refrigeration mechanism needs larger heat demand, the evaporation end of the refrigeration mechanism is preferentially set as one end for energy exchange with the vehicle-mounted refrigerator, and if the battery module needs larger heat demand, the battery module is preferentially set as one end for energy exchange with the vehicle-mounted refrigerator.

[0112] The technical features of the above embodiments can be combined in any way. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0113] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific and detailed manner, but should not be construed as limiting the scope of the patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are all within the scope of the present application. Therefore, the scope of protection of the patent of the present application should be subject to the appended claims.

Claims

1. An energy management system, characterized in that, include: The first energy exchange terminal is configured as a vehicle-mounted refrigerator; The second energy exchange end is set as the heat demand end or cold demand end on the vehicle, and a working fluid circuit is established between it and the first energy exchange end. The second energy exchange end can be the electric drive end, the evaporation end of the refrigeration mechanism, the condensation end of the refrigeration mechanism, or the battery module. 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 terminal, and to control the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the second energy exchange terminal. The solenoid valve, which controls the working port between the first energy exchange end and the second energy exchange end, is a ten-way valve to control the switching between different working fluid circuits. When the second energy exchange end is the evaporator end of the refrigeration mechanism, 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 side inlet of the third heat exchanger, the secondary side 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 connected in sequence to form a working fluid circuit, so as to establish a second working fluid circuit between the vehicle refrigerator and the refrigeration mechanism. When the second energy exchange end is the condenser end of the refrigeration mechanism, 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 side inlet of the fourth heat exchanger, the secondary side 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 connected in sequence to form a working fluid circuit, so as to establish a third working fluid circuit between the vehicle refrigerator and the condenser end of the refrigeration mechanism.

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 fluid in the working fluid 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 further includes a first heat exchanger and a second heat exchanger. The second energy exchange end is an electric drive end. A cooling module is connected downstream of the electric drive end. The electric drive end and the first liquid cooling working fluid exchange energy through the first heat exchanger, and the cooling module and the first liquid cooling working fluid exchange energy through the second heat exchanger.

4. The energy management system according to claim 1, characterized in that, The energy management system further includes a third heat exchanger, the second energy exchange end is a refrigeration mechanism, 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 further includes a fourth heat exchanger. The second energy exchange end is a refrigeration mechanism, which 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 further includes a fifth heat exchanger, the second energy exchange end is the battery module, the primary side of the fifth heat exchanger is the 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 employing the energy management system as described in any one of claims 1-6, characterized in that, The energy management method includes: The vehicle-mounted refrigerator is identified as the first energy exchange terminal, and the heat demand terminal or cold demand terminal on the vehicle is identified as the second energy exchange terminal. A working fluid circuit is established between the first energy exchange terminal and the second energy exchange terminal. The liquid-cooled working fluid in the working fluid circuit is controlled to perform energy exchange with the first energy exchange terminal, and the liquid-cooled working fluid in the working fluid circuit is controlled to perform energy exchange with the second energy exchange terminal.

8. The energy management method according to claim 7, characterized in that, The second energy exchange terminal is an electric drive terminal. The steps of controlling the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the first energy exchange terminal and controlling the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the second energy exchange terminal include: The first liquid cooling medium at 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 the heat of the electric drive end through the first liquid cooling medium. The first liquid coolant, after exchanging energy with the electric drive end, is delivered to the cooling module downstream of the electric drive end. The first liquid coolant is controlled to exchange energy with the cooling module so that the cooling module can cool the first liquid coolant. The first liquid cooling medium, after being cooled, is delivered 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 can be carried away by the first liquid cooling medium, or the heat of the first liquid cooling medium can be absorbed by the first end.

9. The energy management method according to claim 7, characterized in that, The second energy exchange terminal is the evaporator of the refrigeration mechanism. The vehicle-mounted refrigerator is in refrigeration mode. Controlling the liquid cooling working fluid in the working fluid circuit to perform energy exchange with the first energy exchange terminal, and controlling the liquid cooling working fluid in the working fluid circuit to perform energy exchange with the second energy exchange terminal, includes: The second liquid cooling medium at the first end of the vehicle refrigerator is delivered 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. The second liquid cooling medium, after being cooled, is delivered to the first end, and the energy exchange between the second liquid cooling medium and the first end is controlled so that the heat of the first end can be removed through the second liquid cooling medium.

10. The energy management method according to claim 7, characterized in that, The second energy exchange terminal is the condenser terminal of the refrigeration mechanism. The vehicle-mounted refrigerator is in heating mode. Controlling the liquid-cooled working fluid in the working fluid circuit to exchange energy with the first energy exchange terminal, and controlling the liquid-cooled working fluid in the working fluid circuit to exchange energy with the second energy exchange terminal, includes: The third liquid cooling medium at the first end of the vehicle refrigerator is delivered to the condensing end, and the third liquid cooling medium is used as the condensing medium of the condensing end. The energy exchange between the third liquid cooling working fluid and the refrigerant at the condenser end is controlled so that the third liquid cooling working fluid is heated by the refrigerant at the condenser end. The third liquid cooling medium, after being heated, is transported to the first end, and the energy exchange between the third liquid cooling medium and the first end is controlled so that the heat of the third liquid cooling medium is absorbed through the first end.

11. The energy management method according to claim 7, characterized in that, The second energy exchange terminal is a battery module. The vehicle refrigerator is in cooling mode. The process of controlling the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the first energy exchange terminal and controlling the liquid-cooled working fluid in the working fluid circuit to perform energy exchange with the second energy exchange terminal includes: The fourth liquid cooling medium at the first end of the vehicle refrigerator is delivered to the battery module, and the fourth liquid cooling medium is controlled to exchange energy with the battery module so as to heat up the battery module through the fourth liquid cooling medium. The fourth liquid cooling medium, after exchanging energy 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 the heat from the first end through the fourth liquid cooling medium.

12. A vehicle, characterized in that, Including the energy management system as described in any one of claims 1-6.

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