Electric swap station thermal management system and electric swap station with same

Abstract

The invention discloses a battery swap station thermal management system and a battery swap station with the same, and belongs to the technical field of thermal management. The battery swap station thermal management system comprises a temperature energy providing system and a heat preservation box, and the heat preservation box is connected with the temperature energy providing system and at least one heat demand area of the battery swap station through a heat preservation pipeline or a heat insulation pipeline and used for storing temperature energy provided by the temperature energy providing system. And temperature energy is provided for the heat demand area according to the cold and hot demand of the heat demand area, and the refrigerating and heating capacity is high. The battery swap station comprises at least one heat demand area and the battery swap station heat management system and has the advantage of being high in energy efficiency ratio.

Description

Technical Field

[0001] The present invention belongs to the field of thermal management, and in particular relates to a thermal management system for a battery swap station and a battery swap station having the same. Background Art

[0002] The thermal management systems currently configured in battery swap stations operate independently of each other. For example, a separate water-cooling unit is used to liquid-cool the battery, a separate high-power industrial air conditioner is used to air-cool the charging functional unit (such as the charger), and two independent wall-mounted air conditioners are used to control the temperature of the equipment room and the lounge respectively. The entire thermal management system not only has a low energy efficiency ratio, but also has insufficient cooling or heating capacity in extreme weather. Summary of the invention

[0003] In view of this, the purpose of the present application is to provide a thermal management system for a battery swap station and a battery swap station having the same, so as to solve the problem of low energy efficiency ratio of the thermal management system.

[0004] In order to achieve the above-mentioned technical objectives, the first aspect of the present application provides a thermal management system for a battery swap station, which includes a temperature energy supply system and an insulation box. The insulation box is connected to the temperature energy supply system and at least one heat demand area of ​​the battery swap station through an insulation pipeline or an insulating pipeline, and is used to store the temperature energy provided by the temperature energy supply system and provide temperature energy to the heat demand area according to the cold and heat demands of the heat demand area.

[0005] In one embodiment, the temperature energy providing system includes at least one of a solar heating system, a charging unit cooling system and a heat pump system, and the heat demand area includes one of a battery storage area, a charging area, an equipment room, a rest room and a fire extinguisher.

[0006] In one embodiment, the solar heating system includes a solar collector and a first drive pump. When the temperature difference between the solar collector and the working medium in the insulation box is greater than or equal to a preset threshold, the first drive pump drives the working medium to flow, and transfers the heat energy at the solar collector to the insulation box; and / or the charging unit cooling system includes a charging unit and a second drive pump. When the charging unit charges the battery in the battery swap station, the second drive pump drives the working medium to flow, and exchanges heat between the charging unit and the insulation box; and / or the heat pump system includes a heat pump unit and a third drive pump. When the heat pump unit is working, the third drive pump drives the working medium to flow, and exchanges heat between the heat pump unit and the insulation box.

[0007] In one embodiment, the solar heating system further comprises two first solenoid valves, which are respectively located on the liquid inlet branch and the liquid outlet branch between the solar collector and the insulation box.

[0008] In one embodiment, the charging unit cooling system also includes two three-way valves, which are respectively located on the liquid inlet branch and the liquid outlet branch between the charging unit and the insulation box and are connected by pipelines, and a heat dissipation module is provided on the pipeline between the two three-way valves.

[0009] In one embodiment, the heat pump system also includes a plurality of second solenoid valves, and the plurality of second solenoid valves are arranged on the liquid outlet branch between the heat pump system and the insulation box, and the plurality of batteries are arranged on the liquid outlet branch between the heat pump system and the insulation box, and the working medium flow channel inside each battery is connected to the liquid outlet branch between the heat pump system and the insulation box through the corresponding second solenoid valve.

[0010] In one embodiment, it further includes a third solenoid valve, which is arranged on the liquid outlet branch between the heat pump system and the insulation box.

[0011] In one embodiment, it further includes a fourth driving pump, a fourth solenoid valve and a rest room unit, wherein the fourth driving pump and the fourth solenoid valve are arranged on a liquid outlet branch between the thermal insulation box and the rest room unit.

[0012] In one embodiment, an electric heater is further included, and the electric heater is arranged on the liquid inlet branch between the heat pump system and the heat preservation box, or is arranged in the heat preservation box.

[0013] A second aspect of the present application provides a battery swap station, comprising at least one heat demand area, and the above-mentioned battery swap station thermal management system.

[0014] By adopting the above technical solution, the present application has the following beneficial effects: This application installs a temperature energy supply system and an insulated box in the battery swap station for controlling the temperature of a preset area in the battery swap station, and connects the insulated box to the temperature energy supply system and at least one heat demand area of ​​the battery swap station through a pipeline. This not only stores the temperature energy provided by the temperature energy supply system, but also provides temperature energy to the heat demand area according to the cold and hot demands of the heat demand area. Compared with the technical solution of using multiple thermal management systems that operate independently of each other, the thermal management system disclosed in this application not only has a high energy efficiency ratio, but also has the characteristics of strong cooling or heating capabilities in extreme weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the principle of a thermal management system for a battery swap station in an application scenario provided by the first embodiment of the present invention; Figure 2 A schematic diagram of the principles of a thermal management system for a battery swap station in an application scenario provided in the second embodiment of the present invention.

[0017] Description of reference numerals: 1. Solar heating system; 2. Charging unit cooling system; 3. Heat pump system; 11. Solar thermal collector; 12. First driving pump; 13. Insulation box; 14. First solenoid valve; 21. Second driving pump; 22. Charging unit; 23. Three-way valve; 24. Heat dissipation module; 31. heat pump unit; 32. third driving pump; 33. second solenoid valve; 4. 4a. Electric heater; 5. Battery; 61. third solenoid valve; 62. heat conducting plate; 71. Fourth drive pump; 72. Fourth solenoid valve; 73. Lounge indoor unit; 81. Fifth solenoid valve; 82. Equipment indoor unit; 91. Sixth solenoid valve; 92. Seventh solenoid valve. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0022] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0023] At present, the power replenishment methods of new energy vehicles are generally divided into two types: charging with the vehicle and replacing the battery. Compared with the charging time of charging with the vehicle, the battery swap station that provides battery swap services for users' vehicles stores electricity in advance and charges the battery at a constant temperature, so that the battery swap time is kept within 5 minutes, which is easier to meet users' strong demand for fast energy replenishment.

[0024] In order to improve the energy utilization rate of the battery swap station and provide a comfortable battery swap environment for staff and users, it is necessary to improve the energy efficiency of the thermal management system of the battery swap station. However, according to the inventor's understanding, the various thermal management systems of the current battery swap station are independent of each other. For example, a separate water cooling unit is used to liquid-cool the battery, a separate high-power industrial air conditioner is used to air-cool the charging function unit (such as the charger), and two independent wall-mounted air conditioners are used to control the temperature of the equipment room and the lounge separately. This makes the entire thermal management system not only have a low energy efficiency ratio, but also have insufficient cooling or heating capacity in extreme weather, which seriously affects the charging rate and safety of the battery.

[0025] In order to solve the problem of low energy efficiency ratio of existing thermal management systems, it is necessary to improve or optimize the structure of the thermal management system of the battery swap station.

[0026] Embodiment 1 See also Figure 1The first embodiment of the present invention provides a thermal management system for a battery swap station, which is used to control the temperature of a heat demand area in the battery swap station. The thermal management system for the battery swap station includes a temperature energy supply system and an insulation box 13, wherein the insulation box 13 is connected to the temperature energy supply system and at least one heat demand area of ​​the battery swap station through an insulation pipeline or an insulating pipeline, and is used to store the temperature energy provided by the temperature energy supply system, and provide temperature energy to the heat demand area according to the cold and hot demands of the heat demand area. Specifically, the insulation box 13 refers to a device for collecting and storing the temperature heat generated by the temperature energy supply system, and is composed of an inner liner, an insulation layer and an outer shell. Preferably, the inner liner of the insulation box 13 is welded with SUS304 stainless steel (referring to austenitic stainless steel), the insulation layer is a polyurethane foam structure, and the outer shell is made of a thinner stainless steel plate. It should be noted that the heat demand area mentioned here includes at least one of the battery storage area, charging area, equipment room, lounge and fire extinguisher box in the battery swap station, wherein the battery storage area is used to store batteries in order to provide battery swap services for users' vehicles; the charging area is used to install charging equipment, such as a charger, in order to charge the batteries stored in the battery storage area; the equipment room is used to install electrical equipment related to the battery swap station, such as PLC, circuit breakers, air switches, gateways and servo drives, etc., in order to provide power supply and power conversion; the lounge is used to provide a resting place for the staff of the battery swap station or users waiting for battery swapping; the fire extinguisher box is a fire emergency facility, which is mainly used to extinguish batteries that have thermal runaway.

[0027] In order to solve the problem of low energy efficiency ratio of existing thermal management systems, in the first embodiment, the temperature energy providing system of the thermal management system of the battery swap station includes at least one of the solar heating system 1, the charging unit cooling system 2 and the heat pump system 3.

[0028] The solar heating system 1 includes a solar collector 11 and a first drive pump 12, and the solar collector 11, the first drive pump 12 and the heat preservation box 13 are connected to each other through pipelines to form a solar heating circuit. Specifically, the solar collector 11 refers to a device that can absorb solar radiation and transfer the generated heat energy to the working medium. Preferably, the solar collector 11 is a liquid collector; the first drive pump 12 refers to a mechanism that transmits the mechanical energy of the prime mover or other external energy to the working medium, so that the energy or pressure of the working medium is increased to transport the working medium, such as a water pump. Preferably, the connecting pipe between the solar collector 11, the first drive pump 12 and the heat preservation box 13 is an insulated pipe or a heat preservation pipe that can reduce heat transfer and energy loss. Thus, in winter, on sunny days and during the day, when the temperature difference between the solar collector 11 and the working medium in the heat preservation box 13 is greater than or equal to the preset threshold, the staff turns on the solar collector 11 and the first driving pump 12, and the first driving pump 12 drives the working medium to flow along the connecting pipeline between the solar collector 11, the first driving pump 12 and the heat preservation box 13, so as to transport the heat energy converted by the solar collector 11 to the working medium in the heat preservation box 13 for heat storage or to provide temperature energy to the heat demand area. It should be noted that the working medium mentioned here includes but is not limited to liquid working media such as water and emulsion.

[0029] And / or, the charging unit cooling system 2 includes a second drive pump 21 and a charging unit 22, and the second drive pump 21, the charging unit 22 and the heat preservation box 13 are also connected to each other through pipelines to form a waste heat recovery loop. Specifically, the structure of the second drive pump 21 is the same as that of the first drive pump 12, and will not be repeated here; the charging unit 22 refers to a charging unit with a liquid cooling device, which can dissipate the heat generated when charging the battery 5 in time, and at least includes a liquid cooling device for reducing the temperature of the charging unit 22, a control circuit for real-time monitoring and control of the charging state of the battery 5, a power module for converting the electric energy of the mains or other external power source into the electric energy required for charging, and an interface module for communicating and interacting with external devices, so that the liquid working medium flows in the charging unit 22 to dissipate heat and provide the battery 5 with an adaptive charging voltage and charging current. It should be noted that the battery 5 mentioned here refers to a storage battery that provides power for the vehicle, that is, a power battery. In this way, when the charging unit 22 is electrically connected to at least one battery 5, that is, charging at least one battery 5, the staff turns on the second driving pump 21, and the second driving pump 21 drives the working medium to flow along the connecting pipeline between the second driving pump 21, the charging unit 22 and the insulation box 13, so that the heat generated by the charging unit 22 during operation can be transferred to the working medium in the insulation box 13 in a heat exchange manner for heat storage or to provide temperature energy to the heat demand area.

[0030] And / or, the heat pump system 3 includes a heat pump unit 31 and a third drive pump 32, and the heat pump unit 31, the third drive pump 32 and the insulation box 13 are also connected to each other through pipelines to form a heat pump transfer loop. Specifically, the heat pump unit 31 refers to a dual-purpose cold and hot source device that can cool in summer and heat in winter, which can be an air source heat pump, a ground source heat pump or a water source heat pump; the structure of the third drive pump 32 is the same as that of the first drive pump 12 and the second drive pump 21, and will not be repeated here. In this way, when the heating capacity of the solar heating system 1 and the charging unit cooling system 2 cannot meet the heating demand of the heat demand area, or at least one of the solar heating system 1 and the charging unit cooling system 2 is not in operation, the staff turns on the heat pump unit 31 and the third drive pump 32, and the third drive pump 32 drives the working medium to flow along the connecting pipeline between the heat pump unit 31, the third drive pump 32 and the insulation box 13, so that the heat generated by the heat pump unit 31 during operation can be transported to the working medium in the insulation box 13 in a heat exchange manner for heat storage or to provide temperature energy to the heat demand area.

[0031] Furthermore, in order to cooperate with the solar heating circuit to achieve the expected control, the solar heating system 1 also includes two first solenoid valves 14, one of which is arranged on the liquid inlet branch between the solar collector 11 and the insulation box 13, and the other is arranged on the liquid outlet branch between the solar collector 11 and the insulation box 13, so as to control the flow direction, flow rate and speed of the working medium in the connecting pipeline between the solar collector 11 and the insulation box 13. It should be noted that the liquid inlet branch and liquid outlet branch mentioned here and below are relative to the insulation box 13, that is, the branch for injecting the working medium into the insulation box 13 is the liquid inlet branch, and the branch for flowing the working medium out of the insulation box 13 is the liquid outlet branch.

[0032] Furthermore, in order to cooperate with the waste heat recovery circuit to achieve the expected control, the charging unit cooling system 2 also includes two three-way valves 23 and a heat dissipation module 24 disposed between the two three-way valves 23, wherein one of the two three-way valves 23 is disposed on the liquid inlet branch between the charging unit 22 and the heat preservation box 13, and the other is disposed on the liquid outlet branch between the charging unit 22 and the heat preservation box 13, and the two three-way valves 23 are connected to the heat dissipation module 24 through a pipeline, which can not only control the flow direction, flow rate and speed of the working medium in the connecting pipeline between the charging unit 22 and the heat preservation box 13, but also dissipate the heat of at least a part of the working medium flowing out of the charging unit 22, so that the cooled working medium can flow to the liquid inlet branch of the charging unit 22 through the three-way valve 23, so as to inject the working medium with a lower temperature into the charging unit 22, so as to achieve cooling of the charging unit 22. It should be noted that the heat dissipation module 24 includes but is not limited to components such as a radiator and a heat dissipation fan.

[0033] Furthermore, in order to cooperate with the heat pump transfer circuit to achieve the expected control, the heat pump system 3 also includes a plurality of second solenoid valves 33, which are arranged on the liquid outlet branch between the heat pump system 3 and the insulation box 13, and the plurality of second solenoid valves 33 correspond to a plurality of batteries 5 arranged on the liquid outlet branch between the heat pump system 3 and the insulation box 13 in the battery swap station. Specifically, the working medium flow channel inside each battery 5 is connected to the liquid outlet branch between the heat pump system 3 and the insulation box 13 through the corresponding second solenoid valve 33. In this way, in winter, when any battery 5 in the battery storage area has a heating demand, the staff opens the third drive pump 32 and the second solenoid valve 33 corresponding to the battery 5 with heating demand, and the third drive pump 32 drives the working medium to flow along the connecting pipeline between the insulation box 13, the third drive pump 32, the second solenoid valve 33, the battery 5 and the heat pump unit 31, so that the heat energy converted or the heat generated by one of the solar heating system 1, the charging unit cooling system 2 and the heat pump system 3 during operation can be used to provide temperature energy to the battery 5 in the heat demand area in the form of heat exchange, thereby ensuring that the battery 5 is charged or stored within a suitable temperature range.

[0034] Furthermore, in order to prevent the working medium in the fire extinguishing box from freezing in winter, the thermal management system of the power station further includes a third solenoid valve 61, which is arranged on the liquid outlet branch between the heat pump system 3 and the insulation box 13. Specifically, the third solenoid valve 61 is connected to the working medium channel and the heat pump unit 31 in the fire extinguishing box through a pipeline, and is connected to the third driving pump 32 and the insulation box 13 through a pipeline. In addition, the third solenoid valve 61 is also connected in parallel with a plurality of second solenoid valves 33. In this way, in winter, when the working medium in the fire extinguisher box needs to be heated, the staff opens the third drive pump 32 and the third solenoid valve 61, and the third drive pump 32 drives the working medium to flow along the connecting pipeline between the insulation box 13, the third drive pump 32, the third solenoid valve 61, the fire extinguisher box and the heat pump unit 31, so that the heat energy converted or the heat generated by one of the solar heating system 1, the charging unit cooling system 2 and the heat pump system 3 during operation can be used to provide temperature energy to the fire extinguisher box in the heat demand area in the form of heat exchange, so that the temperature of the working medium in the fire extinguisher box is higher than the freezing point, thereby preventing the working medium from solidifying or freezing.

[0035] In some embodiments, in order to prevent the fire extinguishing box from absorbing too much heat, a temperature sensor is provided in the fire extinguishing box or in the pipeline connected to the fire extinguishing box to control the working medium in the fire extinguishing box within a specific temperature range, so as to prevent the working medium in the fire extinguishing box from solidifying or freezing, and to prevent the working medium in the fire extinguishing box from being too high in temperature, which is not conducive to the realization of the fire extinguishing function. Preferably, a heat conducting plate 62 is also installed on the fire extinguishing box, so that the high-calorie working medium flowing out of the heat preservation box 13 can transfer heat to the working medium in the fire extinguishing box when passing through the fire extinguishing box.

[0036] Furthermore, in order to provide a comfortable environment for the staff in the lounge or the users waiting for the battery swap, the thermal management system of the battery swap station also includes a fourth drive pump 71, a fourth solenoid valve 72 and a lounge indoor unit 73, wherein the fourth drive pump 71 and the fourth solenoid valve 72 are arranged on the liquid outlet branch between the incubator 13 and the lounge indoor unit 73, and the fourth drive pump 71, the fourth solenoid valve 72, the lounge indoor unit 73 and the incubator 13 are also connected to each other through a pipeline. Specifically, the structure of the fourth drive pump 71 is the same as that of the first drive pump 12, the second drive pump 21 and the third drive pump 32, and will not be repeated here; the lounge indoor unit 73 can be a heat exchange device mainly for heating, such as a fan coil. In this way, in winter, when the lounge needs heating, the staff turns on the fourth drive pump 71, the fourth solenoid valve 72 and the lounge indoor unit 73, and the fourth drive pump 71 drives the working medium to flow along the connecting pipeline between the insulation box 13, the fourth drive pump 71, the fourth solenoid valve 72 and the lounge indoor unit 73, so that the heat energy converted or the heat generated by one of the solar heating system 1, the charging unit cooling system 2 and the heat pump system 3 during operation can be used in the form of heat exchange to provide temperature energy to the lounge in the heat demand area, thereby providing a comfortable environment for the staff in the lounge or users waiting for power replacement.

[0037] Furthermore, in order to ensure that the equipment in the equipment room operates within a suitable temperature range, the thermal management system of the power station further includes a fifth solenoid valve 81 and an equipment indoor unit 82, wherein the fifth solenoid valve 81 is arranged on the liquid outlet branch between the incubator 13 and the equipment indoor unit 82. Specifically, the fifth solenoid valve 81 is connected to the fourth drive pump 71 and the incubator 13 through a pipeline, and is connected to the equipment indoor unit 82 through a pipeline; the structure of the equipment indoor unit 82 is the same as that of the rest room indoor unit 73, which will not be repeated here. In this way, in winter, when the equipment room needs heating, the staff turns on the fourth drive pump 71, the fifth solenoid valve 81 and the equipment indoor unit 82, and the fourth drive pump 71 drives the working medium to flow along the connecting pipeline between the incubator 13, the fourth drive pump 71, the fifth solenoid valve 81 and the equipment indoor unit 82, so that the heat energy converted or the heat generated by one of the solar heating system 1, the charging unit cooling system 2 and the heat pump system 3 during operation can be used to provide temperature energy to the equipment room in the heat demand area in the form of heat exchange, thereby providing a suitable operating environment for the equipment in the equipment room.

[0038] Furthermore, in order to cooperate with the waste heat recovery circuit and the heat pump transfer circuit to achieve the expected control, the thermal management system of the battery swap station also includes a sixth solenoid valve 91 and a seventh solenoid valve 92, wherein the sixth solenoid valve 91 is arranged on the liquid outlet branch between the fourth drive pump 71 and the insulation box 13, and the sixth solenoid valve 91 is connected in parallel with the fourth solenoid valve 72 and the fifth solenoid valve 81; the seventh solenoid valve 92 is arranged on the liquid outlet branch between the heat pump unit 31 and the insulation box 13, and the seventh solenoid valve 92 is connected to the third drive pump 32 through a pipeline, which is beneficial to the exchange of working media on the liquid inlet branch and the liquid outlet branch of the insulation box 13.

[0039] Furthermore, in order to supplement heating, the thermal management system of the battery swap station also includes an electric heater 4, which is arranged on the liquid inlet branch between the heat pump unit 31 of the heat pump system 3 and the insulation box 13. Specifically, the electric heater 4 refers to an electric heating device that can heat, insulate and heat the circulating working medium, so that the temperature of the heated working medium meets the process requirements. In this way, when the solar collector 11, the charging unit 22 and the heat pump unit 31 are providing heat at the same time, but still cannot meet the heating needs of all heat demand areas, at this time, the staff turns on the electric heater 4 to transfer the heat energy at the electric heater 4 to the insulation box 13, so as to provide supplementary heating to the heat demand area.

[0040] Since most of the battery swap stations are installed outdoors, and the energy efficiency ratio during operation is related to the weather, in the first embodiment, the thermal management system of the battery swap station also includes a controller (not shown) for communicating with the host computer, so as to control the opening or closing of the solar heating system 1, the charging unit cooling system 2 and the heat pump system 3 according to the needs. Specifically, the host computer refers to a computer that can directly issue control commands, generally a PC / host computer / master computer / upper computer, and various signal changes (such as hydraulic pressure, water level, temperature, etc.) can be displayed on the screen; the controller uses MC9S08DZ60 as the main control chip, generates PWM control signals according to the collected temperature information and fault feedback information, and realizes information interaction with the solar collector 11, the charging unit 22 and the heat pump unit 31 through the CAN network. In this way, in winter, when any battery 5 needs to be heated, the upper computer of the battery swap station communicates with the controller through the bus, and then the controller controls the third drive pump 32 and the second solenoid valve 33 of the corresponding branch corresponding to the battery 5 with heating demand to open according to the battery heating instruction issued by the upper computer, so as to heat the battery 5 in the battery storage area to the preset target temperature range, thereby ensuring that the battery cells of the battery 5 operate within an appropriate temperature range.

[0041] In order to facilitate the understanding of the inventive concept of the present application and reflect the high energy efficiency of the thermal management system of the battery swap station, in the specific implementation, the working mode of the temperature energy providing system in different application scenarios can be known according to the contents in Table 1 below.

[0042] Table 1:

[0043] It should be noted that, in the above Table 1, “√” indicates operation, and “ / ” indicates non-operation.

[0044] Embodiment 2 See also Figure 2 The second embodiment of the present invention also provides a thermal management system for a battery swap station. Most of the features of the thermal management system for the battery swap station are the same as those of the thermal management system for the battery swap station in the aforementioned embodiment one. The difference is that the electric heater 4a of this embodiment two is different in position from the electric heater 4 of embodiment one, which is described in detail below.

[0045] In the second embodiment, the electric heater 4a is installed in the heat preservation box 13. Specifically, the electric heater 4a is installed at the bottom of the heat preservation box 13 and is electrically isolated from the working medium in the heat preservation box 13. In this way, when the solar collector 11, the charging unit 22 and the heat pump unit 31 provide heat at the same time, but still cannot meet the heating needs of all heat demand areas, at this time, the staff can turn on the electric heater 4a to transfer the heat energy at the electric heater 4a to the heat preservation box 13, and can also provide supplementary heat to the heat demand area.

[0046] Embodiment 3 A third embodiment of the present invention provides a battery swap station, which includes at least one heat demand area and a thermal management system for the battery swap station as described in the above embodiments, wherein a temperature energy providing system of the thermal management system of the battery swap station provides temperature energy, and an insulation box 13 of the thermal management system of the battery swap station stores the temperature energy provided by the temperature energy providing system, and the insulation box 13 is connected to the temperature energy providing system and at least one heat demand area of ​​the battery swap station through pipelines, and can also provide temperature energy to the heat demand area according to the cold and hot demands of the heat demand area.

[0047] Compared with the technical solution of adopting multiple thermal management systems operating independently of each other, the thermal management system disclosed in the present application enables the battery swap station to not only integrate solar energy, waste heat from the charging unit 22 and heat generated by the heat pump unit 31 under low temperature conditions in winter, but also to heat one of the battery storage area, charging area, equipment room, rest room and fire extinguisher box. In summer, under high temperature conditions, the refrigeration of the heat pump unit 31 can also be used to cool down one of the battery storage area, charging area, equipment room and rest room, and has the characteristics of high energy efficiency ratio and strong cooling and heating capabilities.

[0048] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A thermal management system for a battery swap station, characterized in that: The thermal management system of the battery swap station includes a temperature energy supply system and an insulation box (13). The insulation box (13) is connected to the temperature energy supply system and at least one heat demand area of ​​the battery swap station through an insulation pipeline or an insulating pipeline, and is used to store the temperature energy provided by the temperature energy supply system and provide temperature energy to the heat demand area according to the cold and hot demands of the heat demand area.

2. The thermal management system for a battery swap station according to claim 1, characterized in that: The temperature energy supply system includes at least one of a solar heating system (1), a charging unit cooling system (2) and a heat pump system (3), and the heat demand area includes one of a battery storage area, a charging area, an equipment room, a rest room and a fire extinguisher.

3. The thermal management system for a battery swap station according to claim 2, characterized in that: The solar heating system (1) comprises a solar thermal collector (11) and a first driving pump (12), wherein when a temperature difference between the solar thermal collector (11) and a working medium in the thermal insulation box (13) is greater than or equal to a preset threshold, the first driving pump (12) drives the working medium to flow, thereby transporting heat energy at the solar thermal collector (11) to the thermal insulation box (13); and / or The charging unit cooling system (2) comprises a charging unit (22) and a second driving pump (21), and when the charging unit (22) charges the battery (5) in the battery swap station, the second driving pump (21) drives the working medium to flow, thereby exchanging heat between the charging unit (22) and the heat preservation box (13); and / or The heat pump system (3) comprises a heat pump unit (31) and a third driving pump (32). When the heat pump unit (31) is working, the third driving pump (32) drives the working medium to flow, thereby exchanging heat between the heat pump unit (31) and the thermal insulation box (13).

4. The thermal management system for a battery swap station according to claim 3, characterized in that: The solar heating system (1) further comprises two first solenoid valves (14), wherein the two first solenoid valves (14) are respectively located on a liquid inlet branch and a liquid outlet branch between the solar collector (11) and the insulation box (13).

5. The thermal management system for a battery swap station according to claim 3, characterized in that: The charging unit cooling system (2) further comprises two three-way valves (23), the two three-way valves (23) being respectively located on the liquid inlet branch and the liquid outlet branch between the charging unit (22) and the heat preservation box (13) and being connected via pipelines, and a heat dissipation module (24) being provided on the pipeline between the two three-way valves (23).

6. The thermal management system for a battery swap station as claimed in claim 3, characterized in that: The heat pump system (3) further comprises a plurality of second solenoid valves (33), wherein the plurality of second solenoid valves (33) are arranged on a liquid outlet branch between the heat pump system (3) and the heat preservation box (13), and the plurality of batteries (5) are arranged on a liquid outlet branch between the heat pump system (3) and the heat preservation box (13), and the working medium flow channel inside each battery (5) is connected to the liquid outlet branch between the heat pump system (3) and the heat preservation box (13) via a corresponding second solenoid valve (33).

7. The thermal management system for a battery swap station according to claim 2, characterized in that: It also includes a third solenoid valve (61), which is arranged on the liquid outlet branch between the heat pump system (3) and the heat preservation box (13).

8. The thermal management system for a battery swap station as claimed in claim 2, characterized in that: It also includes a fourth drive pump (71), a fourth electromagnetic valve (72) and a rest room unit (73), wherein the fourth drive pump (71) and the fourth electromagnetic valve (72) are arranged on a liquid outlet branch between the thermal insulation box (13) and the rest room unit (73).

9. The thermal management system for a battery swap station according to claim 2, characterized in that: It also includes an electric heater (4, 4a), which is arranged on the liquid inlet branch between the heat pump system (3) and the heat preservation box (13), or is arranged inside the heat preservation box (13).

10. A battery swap station, characterized in that: The invention comprises at least one heat demand area and a thermal management system for a battery swap station as claimed in any one of claims 1 to 9.

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