Thermal management method of energy storage box, battery management system, energy storage box and energy storage system

Abstract

The invention discloses a thermal management method of an energy storage box, a battery management system, the energy storage box and an energy storage system. The method comprises the following steps: acquiring temperature information of single batteries in an energy storage device; and controlling the temperature adjusting device according to the temperature information so as to adjust the temperature in the energy storage device and / or the distribution box. Therefore, by controlling the temperature adjusting device, the temperature in the energy storage device and / or the power distribution box can be adjusted, the power distribution box and the energy storage device can share one heat exchange mechanism, the structure of the energy storage box can be simplified, and therefore the manufacturing cost of the energy storage box can be reduced, the heat exchange medium in the temperature adjusting device can heat or cool the power distribution box, and the heat exchange efficiency is improved. And the heat exchange medium in the temperature adjusting device can also heat or cool the energy storage device, so that the energy consumption of the energy storage box can be reduced.

Description

Technical Field

[0001] The present application relates to the field of energy storage boxes, and more specifically, to a thermal management method for energy storage boxes, a battery management system, a computer-readable storage medium, an energy storage box, and an energy storage system. Background Art

[0002] In the related art, the existing energy storage container has a battery compartment and an electrical compartment, the battery compartment is provided with an energy storage device, the electrical compartment is provided with a distribution box, and the battery compartment and the electrical compartment are respectively provided with independent cooling devices, the cooling device in the battery compartment only dissipates heat for the energy storage device, and the cooling device in the electrical compartment only dissipates heat for the distribution box. Since the cooling device for the energy storage device and the cooling device for the distribution box are independently designed and unrelated to each other, the structure of the energy storage container is complicated, the manufacturing cost of the energy storage container is increased, and the energy consumption of the energy storage container is also increased. Summary of the invention

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes an energy storage box, which has a simple structure and low energy consumption.

[0004] In a first aspect, an embodiment of the present application provides a thermal management method for an energy storage box, wherein the energy storage box includes a distribution box, an energy storage device, a temperature regulating device, and a heat exchange device, wherein the energy storage device has a first medium flow path, the temperature regulating device is connected to the first medium flow path to form a first medium circulation flow path, the temperature regulating device selectively heats or cools a heat exchange medium, at least a portion of the heat exchange device is disposed in the distribution box and exchanges heat with the distribution box, the heat exchange device has a second medium flow path, the temperature regulating device is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off, and the method includes:

[0005] Acquiring temperature information of battery cells in the energy storage device;

[0006] The temperature regulating device is controlled according to the temperature information to adjust the temperature in the energy storage device and / or the distribution box.

[0007] In the above technical solution, when it is determined that the temperature regulating device has no faults, the temperature information of the battery cells in the energy storage device is obtained, and the temperature regulating device is controlled according to the temperature information, so that the temperature in the energy storage device and / or the distribution box can be adjusted, and the distribution box and the energy storage device can share a temperature regulating device, which can simplify the structure of the energy storage box, thereby reducing the manufacturing cost of the energy storage box, and the heat exchange medium in the temperature regulating device can heat or cool the distribution box, and the heat exchange medium in the temperature regulating device can also heat or cool the energy storage device, which can reduce the energy consumption of the energy storage box.

[0008] In some embodiments, controlling the temperature adjustment device according to the temperature information includes:

[0009] determining a maximum battery temperature according to the temperature information;

[0010] When the maximum battery temperature is greater than a first preset temperature, the temperature regulating device is controlled to perform cooling work, and at least the cooled heat exchange medium is controlled to circulate in the first medium circulation flow path until the maximum battery temperature is less than or equal to a second preset temperature, wherein the second preset temperature is lower than the first preset temperature.

[0011] In the above technical solution, the controller determines the maximum battery temperature according to the temperature information. When the controller determines that the maximum battery temperature is greater than the first preset temperature, the controller controls the temperature regulating device to adjust to the cooling mode so that the temperature regulating device performs cooling work, and controls the heat exchange medium cooled by the temperature regulating device to circulate in the first medium circulation flow path so as to cool the energy storage device, thereby maintaining the temperature of the energy storage device at an appropriate temperature. Moreover, after controlling the second medium circulation flow path to be turned on, the heat exchange medium cooled by the temperature regulating device circulates in the second medium circulation flow path so as to cool the distribution box, thereby maintaining the temperature of the distribution box at an appropriate temperature, thereby improving the safety of the energy storage box.

[0012] In some embodiments, when the maximum battery temperature is less than or equal to a second preset temperature, the method further includes:

[0013] The temperature regulating device is controlled to stop refrigeration, and the heat exchange medium in the first medium circulation flow path is kept circulating.

[0014] In the above technical solution, when the maximum battery temperature drops to less than or equal to the second preset temperature, the controller controls the temperature control device to stop refrigeration and keeps the heat exchange medium in the first medium circulation flow path to continue to circulate. The heat exchange medium in the first medium circulation flow path can continue to exchange heat with the energy storage device, so that the battery cells in the energy storage device can be kept at a suitable temperature, thereby improving the safety of battery use.

[0015] In some embodiments, when the maximum battery temperature is determined according to the temperature information, controlling the temperature regulating device according to the temperature information further includes:

[0016] The minimum battery temperature is determined according to the temperature information. When the minimum battery temperature is less than or equal to a third preset temperature, the temperature regulating device is controlled to perform heating, and at least the heated heat exchange medium is controlled to circulate in the first medium circulation flow path until the minimum battery temperature is greater than or equal to a fourth preset temperature, wherein the third preset temperature is less than the fourth preset temperature, and the fourth preset temperature is less than the second preset temperature.

[0017] In the above technical solution, the controller obtains the temperature information of the battery cells in the energy storage device, and the controller determines the highest battery temperature according to the temperature information. When the controller determines that the lowest battery temperature is less than or equal to the third preset temperature, the controller controls the temperature regulating device to perform heating work, and controls the heat exchange medium heated by the temperature regulating device to circulate in the first medium circulation flow path, so as to heat up the energy storage device until the lowest battery temperature is greater than or equal to the fourth preset temperature, so that the temperature of the battery cells in the energy storage device is appropriate. In addition, if the distribution box needs to be heated, the second medium circulation flow path is controlled to be turned on, and the heat exchange medium heated by the temperature regulating device circulates in the second medium circulation flow path, so as to heat up the distribution box, so that the temperature of the distribution box is appropriate.

[0018] In some embodiments, when the lowest battery temperature is greater than or equal to a fourth preset temperature, the method further includes:

[0019] The temperature regulating device is controlled to stop heating, and the heat exchange medium in the first medium circulation flow path is kept circulating.

[0020] In the above technical solution, the controller obtains the temperature information of the battery cells in the energy storage device, and determines the maximum battery temperature according to the temperature information. When the controller determines that the minimum battery temperature is greater than or equal to the fourth preset temperature, the controller controls the temperature regulating device to stop heating. During the circulation of the heat exchange medium in the first medium circulation flow path, the heat exchange medium can exchange heat with the energy storage device, so that the battery cells in the energy storage device can be kept at a suitable temperature, thereby improving the safety of battery use.

[0021] In some embodiments, before obtaining the temperature information of the battery cells in the energy storage device, the method further includes:

[0022] Communicate with the temperature regulating device to detect a fault alarm signal of the temperature regulating device, wherein the fault alarm signal is used to determine whether the temperature regulating device is fault-free.

[0023] In the above technical solution, before determining that the temperature regulating device has no fault, it is possible to determine whether the temperature regulating device has a fault by communicating with the temperature regulating device to detect a fault alarm signal of the temperature regulating device.

[0024] In some embodiments, the energy storage box further includes a first driving pump, the first driving pump is connected between the second medium flow path and the temperature regulating device to drive the heat exchange medium to circulate in the second medium circulation flow path, a battery compartment and an electrical compartment are formed in the energy storage box, the energy storage device is disposed in the battery compartment, and the distribution box is disposed in the electrical compartment, and the method further includes:

[0025] When it is determined that the first driving pump has no fault, the temperature of the heat exchange medium is obtained, and when the temperature of the heat exchange medium is less than a fifth preset temperature or the temperature regulating device performs refrigeration operation,

[0026] If the temperature in the battery compartment is greater than a sixth preset temperature, or the temperature in the electrical compartment is greater than a seventh preset temperature, controlling the first driving pump to start;

[0027] If the temperature in the battery compartment is less than or equal to a sixth preset temperature, and the temperature in the electrical compartment is less than or equal to a seventh preset temperature, the first driving pump is controlled to be turned off.

[0028] In the above technical solution, when the controller determines that the first drive pump has no faults, the controller obtains the temperature of the heat exchange medium in the energy storage box, and when the temperature of the heat exchange medium is lower than the fifth preset temperature, or the temperature regulating device is performing cooling operation, the controller judges the temperature in the battery compartment and the temperature in the electrical compartment. If the temperature in the battery compartment is higher than the sixth preset temperature, or the temperature in the electrical compartment is higher than the seventh preset temperature, the first drive pump is controlled to turn on, thereby achieving the effect of cooling both the battery compartment and the electrical compartment at the same time.

[0029] When the controller determines that the first drive pump has no faults, the controller obtains the temperature of the heat exchange medium in the energy storage box, and when the temperature of the heat exchange medium is lower than the fifth preset temperature, or the temperature regulating device is performing cooling operation, the controller determines the temperature in the battery compartment and the temperature in the electrical compartment. If the temperature in the battery compartment is lower than or equal to the sixth preset temperature, and the temperature in the electrical compartment is lower than or equal to the seventh preset temperature, the first drive pump is controlled to be turned off. At this time, the heat exchange medium flowing out of the temperature regulating device cannot flow into the second medium flow path, and the electrical compartment can also meet the heat dissipation requirements. The heat exchange efficiency between the heat exchange medium and the energy storage device can be improved, thereby rapidly reducing the temperature in the battery compartment.

[0030] In some embodiments, after obtaining the temperature of the heat exchange medium, the method further includes:

[0031] When the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device performs heating operation,

[0032] If the temperature in the battery compartment is lower than an eighth preset temperature, or the temperature in the electrical compartment is lower than a ninth preset temperature, controlling the first driving pump to start;

[0033] If the temperature in the battery compartment is greater than or equal to an eighth preset temperature, and the temperature in the electrical compartment is greater than or equal to a ninth preset temperature, the first driving pump is controlled to be turned off.

[0034] In the above technical solution, after the controller obtains the temperature of the heat exchange medium, when the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device is performing heating work, if the temperature in the battery compartment is less than the eighth preset temperature, or the temperature in the electrical compartment is less than the ninth preset temperature, the energy storage device and the distribution box need to be heated, and the controller controls the first drive pump to turn on, so as to achieve the effect of heating the energy storage device and the distribution box at the same time. If the temperature in the battery compartment is greater than or equal to the eighth preset temperature, and the temperature in the electrical compartment is greater than or equal to the ninth preset temperature, the electrical compartment does not need to be heated, and the controller controls the first drive pump to turn off, which can improve the heat exchange efficiency between the heat exchange medium and the energy storage device, so that the temperature in the energy storage device can be quickly increased.

[0035] In some embodiments, before determining that the first drive pump is not faulty, the method further includes:

[0036] A dry contact is used to connect the first driving pump to detect a fault alarm signal of the first driving pump.

[0037] In the above technical solution, the controller and the first drive pump are connected by dry contact, and the controller can detect the fault alarm signal of the first drive pump. When the controller detects the fault alarm signal of the first drive pump, the controller controls the energy storage box to shut down. At the same time, the controller can control the alarm to send out an alarm message, thereby prompting the staff that the first drive pump is faulty. In addition, the controller can control the first drive pump, so as to achieve the effect of the controller controlling the first drive pump to be turned on or off.

[0038] In some embodiments, the energy storage box further includes a main control box, the main control box is connected to the energy storage device to control the energy storage device, and the main control box has a spoiler to allow gas to flow in the main control box. The method further includes:

[0039] Obtaining the temperature in the main control box;

[0040] When the temperature in the main control box is within a preset temperature range, the spoiler is driven to work.

[0041] In the above technical solution, the temperature inside the main control box is obtained through the controller. When the temperature inside the main control box is within a preset temperature range, the controller drives the spoiler to work. When the spoiler works, the gas can flow in the main control box, thereby achieving the effect of cooling the main control box.

[0042] In some embodiments, after obtaining the temperature in the main control box, the method further includes:

[0043] If the temperature in the main control box is greater than the upper limit temperature of the preset temperature range, over-temperature protection is performed.

[0044] In the above technical solution, after obtaining the temperature inside the main control box, when the temperature inside the main control box is within the preset temperature range, the controller drives the spoiler to work. When the spoiler is working, the controller continuously obtains the temperature inside the main control box. If the temperature inside the main control box is greater than the upper limit temperature of the preset temperature range, it is considered that the spoiler is working abnormally, and the controller controls the energy storage box to perform over-temperature protection, which can reduce the risk of working failure of the main control box due to high temperature, thereby improving the safety of use of the main control box, and further improving the safety of use of the energy storage box.

[0045] In a second aspect, an embodiment of the present application further provides a battery management system, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above method when executing the computer program.

[0046] In a third aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program implements the steps of the above method when executed by a processor.

[0047] In a fourth aspect, an embodiment of the present application further provides an energy storage box, comprising:

[0048] A distribution box, an energy storage device, a temperature regulating device and a heat exchange device, wherein the energy storage device has a first medium flow path, the temperature regulating device is connected to the first medium flow path to form a first medium circulation flow path, the temperature regulating device selectively heats or cools a heat exchange medium, at least part of the heat exchange device is disposed in the distribution box and exchanges heat with the distribution box, the heat exchange device has a second medium flow path, the temperature regulating device is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off;

[0049] The controller is used to obtain the temperature information of the battery cells in the energy storage device and control the temperature regulating device according to the temperature information to regulate the temperature in the energy storage device and / or the distribution box.

[0050] In a fifth aspect, an embodiment of the present application also provides an energy storage system, comprising at least one of the above-mentioned energy storage boxes.

[0051] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a schematic diagram of an energy storage box according to an embodiment of the present application;

[0053] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0054] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0055] Figure 4 is a schematic diagram of an energy storage box according to an embodiment of the present application from another angle;

[0056] Figure 5 yes Figure 4 Enlarged view of point C in the middle;

[0057] Figure 6 yes Figure 4 Enlarged view of point D in the middle;

[0058] Figure 7 is a schematic diagram of the assembly of a heat exchange mechanism and a first pipeline assembly according to an embodiment of the present application;

[0059] Figure 8 yes Figure 7 Enlarged view of point E in the middle;

[0060] Fig. 9 yes Figure 7 Enlarged view of point F in the middle;

[0061] Fig.10 is a schematic diagram of the connection between the temperature control device, the heat exchange device, and the energy storage device according to an embodiment of the present application;

[0062] Fig.11 is another connection diagram of the temperature control device, the heat exchange device, and the energy storage device according to an embodiment of the present application;

[0063] Fig.12 is another connection diagram of the temperature control device, the heat exchange device, and the energy storage device according to an embodiment of the present application;

[0064] Fig.13 is another connection diagram of the temperature control device, the heat exchange device, and the energy storage device according to an embodiment of the present application;

[0065] Fig.14is another connection diagram of the temperature control device, the heat exchange device, and the energy storage device according to an embodiment of the present application;

[0066] Fig.15 is another connection diagram of the temperature control device, the heat exchange device, and the energy storage device according to an embodiment of the present application;

[0067] Fig.16 is a schematic diagram of an embodiment of an energy storage system according to the present application;

[0068] Fig.17 is a schematic diagram of another embodiment of an energy storage system according to the present application;

[0069] Fig.18 is a flow chart of a thermal management method according to the present application;

[0070] Fig.19 is a flow chart of a specific embodiment of the thermal management method according to the present application;

[0071] Fig. 20 is a flow chart of another specific embodiment of the thermal management method according to the present application;

[0072] Fig.21 is a flow chart of another specific embodiment of the thermal management method according to the present application;

[0073] Fig. 22 It is a block diagram of a processor, a memory, a communication interface, and a communication bus according to the present application.

[0074] Reference numerals:

[0075] Energy storage box 100;

[0076] Box 10;

[0077] Distribution box 20; box body 21; communication hole 211; first mounting hole 213; air guide portion 22;

[0078] Temperature control device 30;

[0079] Heat exchange device 40; first heat exchange element 401; first radiator 402; first air supply element 403; second heat exchange element 404; first connecting pipeline 405; second connecting pipeline 406; third connecting pipeline 407; second air supply element 408;

[0080] First driving pump 50; main control box 60; energy storage device 70;

[0081] First pipeline assembly 80; first pipeline 801; second pipeline 802;

[0082] Heat exchange flow path 90;

[0083] Energy storage system 200; bidirectional converter 201;

[0084] Processor 1201; communication interface 1202; memory 1203; communication bus 1204. DETAILED DESCRIPTION

[0085] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0086] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0087] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0088] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, G and / or H can represent: G exists alone, G and H exist at the same time, and H exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0090] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0091] The term "plurality" used in the present application refers to two or more (including two).

[0092] The energy storage box of the present application can be used to place an energy storage device, which can be a battery. The battery can include multiple battery cells, and the battery cells can include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., which are not limited in the embodiments of the present application. The battery cells can be cylindrical, flat, rectangular, or in other shapes, etc., which are not limited in the embodiments of the present application. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, which are not limited in the embodiments of the present application.

[0093] The battery cell includes a shell, an electrode assembly and an electrolyte, and the shell is used to contain the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode collector. The positive electrode collector not coated with the positive electrode active material layer protrudes from the positive electrode collector coated with the positive electrode active material layer. The positive electrode collector not coated with the positive electrode active material layer serves as the positive electrode ear. Taking lithium-ion batteries as an example, the material of the positive electrode collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector not coated with the negative electrode active material layer protrudes from the negative electrode current collector coated with the negative electrode active material layer. The negative electrode current collector not coated with the negative electrode active material layer serves as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc. In order to ensure that a large current passes without melting, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together.

[0094] The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a winding structure or a stacked structure, but the embodiments of the present application are not limited thereto.

[0095] The energy storage container has a battery compartment and an electrical compartment. The battery compartment is provided with an energy storage device, and the electrical compartment is provided with a distribution box. The battery compartment and the electrical compartment are provided with independent cooling devices respectively. The cooling device in the battery compartment only dissipates heat for the energy storage device, and the cooling device in the electrical compartment only dissipates heat for the distribution box. Since the cooling device for the energy storage device and the cooling device for the distribution box are independently designed and unrelated to each other, the structure of the energy storage container is complicated, the manufacturing cost of the energy storage container is increased, and the energy consumption of the energy storage container is also increased.

[0096] Based on the above considerations, in order to solve the technical problem that the cooling device for the energy storage device and the cooling device for the distribution box in the energy storage container are independently designed and unrelated to each other, resulting in a complex structure and high energy consumption of the energy storage container. The present application proposes a thermal management method for an energy storage box, the energy storage box includes: a distribution box, an energy storage device, a temperature regulating device and a heat exchange device, the energy storage device has a first medium flow path; the temperature regulating device is connected to the first medium flow path to form a first medium circulation flow path, and the temperature regulating device selectively heats or cools the heat exchange medium; at least part of the heat exchange device is arranged in the distribution box and exchanges heat with the distribution box, the heat exchange device has a second medium flow path, the temperature regulating device is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off. The energy storage box may also include: a box body, the distribution box and the energy storage device may be arranged in the box body, and the temperature regulating device may be arranged in the box body.

[0097] In an energy storage box of this structure, by cooperating with the temperature regulating device and the heat exchanging device, the distribution box and the energy storage device can share a heat exchanging mechanism, which can simplify the structure of the energy storage box, thereby reducing the manufacturing cost of the energy storage box. In addition, the heat exchange medium in the temperature regulating device can heat or cool the distribution box, thereby reducing the energy consumption of the energy storage box.

[0098] Reference below Figure 1-Figure 17 An energy storage box 100 according to an embodiment of the present application is described.

[0099] like Figure 1-Figure 17 As shown, the energy storage box 100 according to the embodiment of the present application includes: a box body 10; a distribution box 20 and an energy storage device 70, both of which are arranged in the box body 10, and the energy storage device 70 has a first medium flow path; a heat exchange mechanism, the heat exchange mechanism includes a temperature regulating device 30 and a heat exchange device 40, the temperature regulating device 30 is arranged in the box body 10, the temperature regulating device 30 is connected to the first medium flow path to form a first medium circulation flow path, and the temperature regulating device 30 selectively heats or cools the heat exchange medium; at least a part of the heat exchange device 40 is arranged in the distribution box 20 and exchanges heat with the distribution box 20, the heat exchange device 40 has a second medium flow path, the temperature regulating device 30 is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively connected or disconnected.

[0100] Among them, the box body 10 can be understood as a structure having a warehouse body for placing components such as a distribution box 20 and an energy storage device 70. The distribution box 20 and the energy storage device 70 are both arranged in the box body 10. As some optional embodiments of the present application, the number of energy storage devices 70 can be set to at least one. For example, the number of energy storage devices 70 can be but not limited to 3, 4, 5, 6, etc. The energy storage device 70 can be understood as a device capable of storing energy (such as electrical energy). As some optional embodiments of the present application, the energy storage device 70 can include a battery. As some optional embodiments of the present application, the distribution box 20 can be understood as a device for power distribution. For example, the distribution box 20 can be electrically connected or communicatively connected to the energy storage device 70, and the distribution box 20 can be used to adjust the charge and discharge rate of each energy storage device 70, so that the charge and discharge rate of each energy storage device 70 can be reasonably controlled, which is conducive to extending the service life of the energy storage device 70.

[0101] The heat exchange mechanism includes a temperature regulating device 30 and a heat exchange device 40. The temperature regulating device 30 is disposed in the housing 10. The energy storage device 70 has a first medium flow path, the first medium flow path has a heat exchange medium, the temperature regulating device 30 is in communication with the first medium flow path of the energy storage device 70, the temperature regulating device 30 and the first medium flow path of the energy storage device 70 can form a first medium circulation flow path, the first medium circulation flow path has a heat exchange medium, and the heat exchange medium can be but not limited to liquid, such as oil, ethylene glycol aqueous solution, etc. The temperature regulating device 30 can adjust the temperature of the heat exchange medium, the temperature regulating device 30 can selectively heat or cool the heat exchange medium, the heated or cooled heat exchange medium can flow into the first medium flow path and perform heat exchange with the energy storage device 70 to perform thermal management on the energy storage device 70, that is, the heat exchange medium in the first medium circulation flow path can be heated or cooled in the temperature regulating device 30, and the heat exchange medium heated or cooled by the temperature regulating device 30 can perform heat exchange with the energy storage device 70 to perform thermal management on the energy storage device 70.

[0102] As some optional embodiments of the present application, the temperature regulating device 30 and the first medium flow path of the energy storage device 70 may be connected through a pipeline.

[0103] At least part of the heat exchange device 40 is disposed in the distribution box 20, and the heat exchange device 40 can exchange heat with the distribution box 20, the heat exchange device 40 has a second medium flow path, and the second medium flow path has a heat exchange medium, the temperature regulating device 30 is connected to the second medium flow path of the heat exchange device 40, and the temperature regulating device 30 and the second medium flow path of the heat exchange device 40 can form a second medium circulation flow path, and the second medium circulation flow path has a heat exchange medium. In addition, the second medium circulation flow path can be selectively turned on or off.

[0104] The temperature control device 30 can selectively heat or cool the heat exchange medium. When the second medium circulation flow path is connected, the heated or cooled heat exchange medium can flow into the second medium flow path of the heat exchange device 40 and exchange heat with the distribution box 20 to perform thermal management on the distribution box 20. That is, the heat exchange medium in the second medium circulation flow path can be heated or cooled in the temperature control device 30, and the heat exchange medium heated or cooled by the temperature control device 30 can exchange heat with the distribution box 20 to perform thermal management on the distribution box 20.

[0105] As some optional embodiments of the present application, the temperature regulating device 30 may be connected to the second medium flow path of the heat exchange device 40 through a pipeline. As some optional embodiments of the present application, the temperature regulating device 30 may be controlled to heat or cool the heat exchange medium according to parameters such as, but not limited to, the external temperature of the energy storage box 100, the temperature of the distribution box 20, and the temperature of the energy storage device 70.

[0106] Such an arrangement can adjust the temperature of the distribution box 20 and the energy storage device 70 by one heat exchange mechanism, which can reduce the number of heat exchange mechanisms required to be arranged in the energy storage box 100, thereby simplifying the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100, and the heat exchange medium in the temperature regulating device 30 can not only be used to heat or cool the energy storage device 70, but also the heat exchange medium in the temperature regulating device 30 can be used to heat or cool the distribution box 20, which is beneficial to reducing the energy consumption of the energy storage box 100.

[0107] As some optional embodiments of the present application, the second medium circulation flow path can be selectively turned on or off. The conduction or disconnection of the second medium circulation flow path can be controlled by a driving pump. For example, when the driving pump is working, the second medium circulation flow path is turned on, and when the driving pump is not working, the second medium circulation flow path is disconnected. The number of driving pumps can be set to one, or the number of driving pumps can also be set to multiple. As some optional embodiments of the present application, the conduction or disconnection of the second medium circulation flow path can be controlled by a valve, and the valve can be but not limited to a pneumatic valve, an electric valve, etc. The number of valves can be set to one, or the number of valves can also be set to multiple. Of course, a driving pump and a valve can also be set at the same time.

[0108] In addition, the flow rate of the heat exchange medium in the second medium circulation flow path can be controlled by controlling the rotation speed of the driving pump, and the flow rate of the heat exchange medium in the second medium circulation flow path can be controlled by controlling the opening of the valve.

[0109] As some optional embodiments of the present application, the setting position of the driving pump or valve is not fixed, and the specific optional setting position of the driving pump or valve is described in the following optional embodiments (it should be explained that the following description is not an exhaustive list).

[0110] As some optional embodiments of this application, Fig.10 As shown, the temperature regulating device 30 can be directly connected to the first medium flow path of the energy storage device 70 to form a first medium circulation flow path. For example, the temperature regulating device 30 can be directly connected to the first medium flow path of the energy storage device 70 through the first pipeline 801 and the second pipeline 802 to form a first medium circulation flow path. The temperature regulating device 30 can have a medium inlet and a medium outlet. The first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70.

[0111] Furthermore, the temperature regulating device 30 can be directly connected to the second medium flow path of the heat exchange device 40 to form a second medium circulation flow path. For example, the temperature regulating device 30 can be directly connected to the second medium flow path of the heat exchange device 40 through the first connecting line 405 and the third connecting line 407 to form a second medium circulation flow path. The third connecting line 407 can be connected between the medium inlet of the temperature regulating device 30 and the second medium flow path. The first connecting line 405 can be connected between the medium outlet of the temperature regulating device 30 and the second medium flow path. The driving pump and / or the valve can be provided on the first connecting line 405 and / or the third connecting line 407. For example, the driving pump can be provided on the first connecting line 405, or the driving pump can be provided on the third connecting line 407.

[0112] As some optional embodiments of this application, Fig.11 As shown, the temperature regulating device 30 can be directly connected to the first medium flow path of the energy storage device 70 to form a first medium circulation flow path. For example, the temperature regulating device 30 can be directly connected to the first medium flow path of the energy storage device 70 through the first pipeline 801 and the second pipeline 802 to form a first medium circulation flow path. The temperature regulating device 30 can have a medium inlet and a medium outlet. The first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70.

[0113] Furthermore, the second medium flow path of the heat exchange device 40 can be directly connected to the first medium circulation flow path to connect to the temperature control device 30 to form a second medium circulation flow path. It can be understood that in this embodiment, part of the first medium circulation flow path is constructed as part of the second medium circulation flow path.

[0114] For example, the first communication line 405 can be connected between the second line 802 and the second medium flow path, and the third communication line 407 can be connected between the first line 801 and the second medium flow path. A driving pump and / or a valve can be arranged in the first communication line 405 and / or the third communication line 407. For example, the driving pump can be arranged in the first communication line 405. Specifically, the driving pump can be arranged at the connection between the first communication line 405 and the second line 802, or the driving pump can be arranged at the connection between the first communication line 405 and the second medium flow path, or the driving pump can be arranged at the connection between the third communication line 407 and the first line 801, or the driving pump can be arranged at the connection between the third communication line 407 and the second medium flow path.

[0115] As some optional embodiments of the present application, Fig.12 As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the second pipeline 802 and the second medium flow path, and the third connecting pipeline 407 can be connected between the second medium flow path and the temperature regulating device 30. The driving pump and / or the valve can be arranged on the first connecting pipeline 405 and / or the third connecting pipeline 407, for example, the driving pump can be arranged on the first connecting pipeline 405, or the driving pump can be arranged on the third connecting pipeline 407.

[0116] As some optional embodiments of the present application, Fig.13 As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the temperature regulating device 30 and the second medium flow path, and the third connecting pipeline 407 can be connected between the second medium flow path and the first pipeline 801. The driving pump and / or the valve can be arranged on the first connecting pipeline 405 and / or the third connecting pipeline 407, for example, the driving pump can be arranged on the first connecting pipeline 405, or the driving pump can be arranged on the third connecting pipeline 407.

[0117] As some optional embodiments of the present application, Fig.14As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the outlet of the first medium flow path and the inlet of the second medium flow path, and the third connecting pipeline 407 can be connected between the outlet of the second medium flow path and the medium inlet of the temperature regulating device 30.

[0118] Or Fig.15 As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the outlet of the first medium flow path and the inlet of the second medium flow path, and the third connecting pipeline 407 can be connected between the outlet of the second medium flow path and the first pipeline 801. This arrangement can make the heat exchange medium flowing out of the temperature regulating device 30 flow into the first medium flow path of the energy storage device 70 and the second medium flow path of the heat exchange device 40 in sequence, so that the heat exchange medium flowing out of the first medium flow path of the energy storage device 70 can be used to adjust the temperature of the distribution box 20, which is conducive to saving energy consumption.

[0119] In the above technical solution, by cooperating with the temperature regulating device 30 and the heat exchange device 40, the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100, and the heat exchange medium in the temperature regulating device 30 can heat or cool the distribution box 20, which can reduce the energy consumption of the energy storage box 100.

[0120] According to some embodiments of the present application, Fig.11 and Fig.12 As shown, the second medium flow path is connected to the first medium flow path, so that the heat exchange medium after the temperature is adjusted by the temperature adjustment device 30 flows into the second medium flow path through part of the first medium flow path.

[0121] As some optional embodiments of this application, Fig.11 As shown, the temperature control device 30 can be directly connected to the first medium flow path of the energy storage device 70 through the first pipeline 801 and the second pipeline 802 to form a first medium circulation flow path. The temperature control device 30 can have a medium inlet and a medium outlet. The first pipeline 801 can be connected between the medium inlet of the temperature control device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature control device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70.

[0122] In addition, the second medium flow path of the heat exchange device 40 can be connected to the first medium flow path, so that the heat exchange medium after the temperature is adjusted by the temperature adjustment device 30 flows into the second medium flow path through part of the first medium flow path. For example, the first connecting pipeline 405 can be connected between the second pipeline 802 and the second medium flow path, and the third connecting pipeline 407 can be connected between the first pipeline 801 and the second medium flow path. The drive pump and / or the valve can be arranged in the first connecting pipeline 405 and / or the third connecting pipeline 407, for example, the drive pump can be arranged in the first connecting pipeline 405, specifically, the drive pump can be arranged at the connection between the first connecting pipeline 405 and the second pipeline 802, or the drive pump can be arranged at the connection between the first connecting pipeline 405 and the second medium flow path, or the drive pump can be arranged at the connection between the third connecting pipeline 407 and the first pipeline 801, or the drive pump can be arranged at the connection between the third connecting pipeline 407 and the second medium flow path.

[0123] As some optional embodiments of the present application, Fig.12 As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the second pipeline 802 and the second medium flow path, and the third connecting pipeline 407 can be connected between the second medium flow path and the temperature regulating device 30. The driving pump and / or the valve can be arranged on the first connecting pipeline 405 and / or the third connecting pipeline 407, for example, the driving pump can be arranged on the first connecting pipeline 405, or the driving pump can be arranged on the third connecting pipeline 407.

[0124] In the above technical solution, the second medium flow path is connected to the first medium flow path so that the heat exchange medium after the temperature is adjusted by the temperature control device 30 flows into the second medium flow path through part of the first medium flow path, which is beneficial to saving a part of the pipeline, thereby saving materials and reducing costs, and is beneficial to reducing the volume of the entire medium flow path and saving space.

[0125] As some optional embodiments of the present application, Fig.14 and Fig.15 As shown, the second medium flow path is connected to the first medium flow path, so that the heat exchange medium whose temperature is adjusted by the temperature adjustment device 30 flows into the second medium flow path through the first medium flow path.

[0126] For example Fig.14As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the outlet of the first medium flow path and the inlet of the second medium flow path, and the third connecting pipeline 407 can be connected between the outlet of the second medium flow path and the medium inlet of the temperature regulating device 30.

[0127] For example Fig.15 As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the outlet of the first medium flow path and the inlet of the second medium flow path, and the third connecting pipeline 407 can be connected between the outlet of the second medium flow path and the first pipeline 801. This arrangement can make the heat exchange medium flowing out of the temperature regulating device 30 flow into the first medium flow path of the energy storage device 70 and the second medium flow path of the heat exchange device 40 in sequence, so that the heat exchange medium flowing out of the first medium flow path of the energy storage device 70 can be used to adjust the temperature of the distribution box 20, which is conducive to saving energy consumption.

[0128] As some optional embodiments of this application, Fig.14 As shown, the first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. The first connecting pipeline 405 can be connected between the outlet of the first medium flow path and the inlet of the second medium flow path, and the third connecting pipeline 407 can be connected between the outlet of the second medium flow path and the medium inlet of the temperature regulating device 30.

[0129] In this embodiment, since the internal flow path of the temperature control device 30 is connected to the first medium flow path of the energy storage device 70 to form a first medium circulation flow path, the internal flow path of the temperature control device 30 can be understood as a part of the first medium circulation flow path, and since the internal flow path of the temperature control device 30 is connected to the second medium flow path of the heat exchange device 40 to form a second medium circulation flow path, the internal flow path of the temperature control device 30 can be understood as a part of the second medium circulation flow path. Therefore, in this embodiment, it can be understood that part of the first medium circulation flow path is constructed as part of the second medium circulation flow path.

[0130] According to some embodiments of the present application, Figure 2As shown, the heat exchange device 40 includes: a first heat exchange component 401, in which a first medium flow channel is formed and the first heat exchange component 401 is attached to the distribution box 20, the first medium flow channel forms at least a part of the second medium flow path, and the first medium flow channel is connected to the temperature control device 30 to form a second medium circulation flow path.

[0131] Among them, a first medium flow channel is formed in the first heat exchanger 401, and a heat exchange medium is contained in the first medium flow channel. The first heat exchanger 401 can be attached to the distribution box 20. As some optional embodiments of the present application, the first heat exchanger 401 can be attached to the side wall of the distribution box 20, for example, the first heat exchanger 401 can be attached to the outer surface of the side wall of the distribution box 20. The first heat exchanger 401 can perform heat exchange with the distribution box 20 to perform thermal management on the distribution box 20. The first medium flow channel can be formed as at least part of the second medium flow path, for example, the first medium flow channel can be formed as part of the second medium flow path, or the first medium flow channel can be formed as the second medium flow path. The first medium flow channel can be connected to the temperature control device 30, and the temperature control device 30 and the first medium flow channel of the first heat exchanger 401 can form a second medium circulation flow path.

[0132] When the second medium circulation flow path is connected, the heated or cooled heat exchange medium can flow out of the temperature regulating device 30 and flow into the first medium flow channel through the pipeline to perform heat exchange with the distribution box 20 to perform thermal management on the distribution box 20 .

[0133] In the above technical solution, by forming the first medium flow path as at least a part of the second medium flow path, the temperature of the distribution box 20 can be adjusted by using the heat exchange medium heated or cooled by the temperature control device 30, which is beneficial for keeping the distribution box 20 in a suitable temperature range for a long time, and is beneficial for improving the service life of the distribution box 20. In addition, by attaching the first heat exchange element 401 to the distribution box 20, the heat exchange efficiency between the first heat exchange element 401 and the distribution box 20 can be improved, which is beneficial for quickly adjusting the temperature of the distribution box 20. In addition, the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100.

[0134] According to some embodiments of the present application, the heat exchange device 40 further includes: a first radiator 402 , which is disposed on the first heat exchange element 401 to dissipate heat from the first heat exchange element 401 .

[0135] Among them, the first radiator 402 can be attached to the first heat exchange element 401. As some optional embodiments of the present application, the first radiator 402 and the first heat exchange element 401 can be stacked along the thickness direction of the first heat exchange element 401. For example, the first radiator 402 can be set to be attached to the surface of the first heat exchange element 401 away from the distribution box 20. The first radiator 402 can have a plurality of heat exchange fins, which can increase the contact area with the air and facilitate the heat dissipation of the first heat exchange element 401.

[0136] As some optional embodiments of the present application, the first radiator 402 may have a heat dissipation channel, and the heat dissipation channel may be connected to the first medium channel in the first heat exchange element 401 , which is also conducive to heat dissipation of the first heat exchange element 401 .

[0137] In the above technical solution, by setting the first radiator 402, it is beneficial for the first heat exchanger 401 to dissipate heat, so that the temperature of the distribution box 20 can be quickly adjusted, which is beneficial for keeping the distribution box 20 in a suitable temperature range for a long time, and is beneficial for increasing the service life of the distribution box 20.

[0138] According to some embodiments of the present application, the heat exchange device 40 further includes: a first air supply member 403 , and the first air supply member 403 is suitable for blowing air toward the first heat exchange member 401 .

[0139] Among them, the first air supply component 403 can be constructed as but not limited to a fan, a blower, etc. The first air supply component 403 can be arranged close to the first heat exchange component 401. The first air supply component 403 can blow air toward the first heat exchange component 401 to increase the air flow speed around the first heat exchange component 401, thereby facilitating the heat dissipation of the first heat exchange component 401.

[0140] As some optional embodiments of the present application, Figure 2 and Figure 5 As shown, the first air supply member 403 and the first heat exchange member 401 can be stacked along the thickness direction of the first heat exchange member 401. For example, the first air supply member 403 can be arranged on a side of the first heat exchange member 401 close to the distribution box 20. As some optional embodiments of the present application, Figure 5 As shown, the side wall of the distribution box 20 may be provided with a first mounting hole 213, and at least a portion of the structure of the first air supply component 403 may be disposed in the first mounting hole 213, so that the first heat exchange component 401 can be attached to the distribution box 20, which is conducive to quickly adjusting the temperature of the distribution box 20.

[0141] In the above technical solution, by setting the first air supply component 403, the flow rate of the air around the first heat exchange component 401 can be increased, which is beneficial to the heat dissipation of the first heat exchange component 401, so that the temperature of the distribution box 20 can be quickly adjusted, which is beneficial to keep the distribution box 20 in a suitable temperature range for a long time, and is beneficial to increasing the service life of the distribution box 20.

[0142] As some optional embodiments of the present application, Figure 2 and Figure 5 As shown, the heat exchange device 40 may include a first radiator 402, a first heat exchange member 401 and a first air supply member 403. Along the thickness direction of the first heat exchange member 401, the first radiator 402, the first air supply member 403 and the first heat exchange member 401 may be stacked, and the first heat exchange member 401 may be arranged between the first radiator 402 and the first air supply member 403. For example, the first radiator 402 may be arranged on the surface of the first heat exchange member 401 away from the distribution box 20, and the first air supply member 403 may be arranged on the side of the first heat exchange member 401 close to the distribution box 20. Such an arrangement can make the arrangement positions of the first radiator 402 and the first air supply member 403 reasonable, which is conducive to the heat dissipation of the first heat exchange member 401.

[0143] According to some embodiments of the present application, Figure 2 and Figure 5 As shown, the heat exchange device 40 also includes: a second heat exchange component 404, in which a second medium flow channel is formed and is arranged in the distribution box 20, and the second medium flow channel is connected between the first medium flow channel and the temperature regulating device 30 to connect the first medium flow channel and the temperature regulating device 30.

[0144] Among them, a second medium flow channel may be formed in the second heat exchanger 404, and a heat exchange medium may be contained in the second medium flow channel. The second heat exchanger 404 may be arranged in the distribution box 20, and the second medium flow channel may be connected between the first medium flow channel and the temperature regulating device 30 to connect the first medium flow channel and the temperature regulating device 30, and the second heat exchanger 404 may perform heat exchange with the distribution box 20. In addition, the second heat exchanger 404 and the first heat exchanger 401 may be arranged in different positions of the distribution box 20.

[0145] As some optional embodiments of the present application, the second medium flow channel can be arranged upstream of the first medium flow channel, that is, the heat exchange medium heated or cooled by the temperature regulating device 30 can first flow into the second medium flow channel, and then flow from the second medium flow channel into the first medium flow channel. As some optional embodiments of the present application, the second medium flow channel can be arranged downstream of the first medium flow channel, that is, the heat exchange medium heated or cooled by the temperature regulating device 30 can first flow into the first medium flow channel, and then flow from the first medium flow channel into the second medium flow channel.

[0146] Furthermore, the first medium flow channel and the second medium flow channel can form at least part of the second medium flow path, and the temperature regulating device 30 and the first medium flow channel of the first heat exchanger 401 and the second medium flow channel of the second heat exchanger 404 can form a second medium circulation flow path.

[0147] As some optional embodiments of the present application, the second medium flow channel can be connected to the first medium flow channel through a pipeline, the second medium flow channel can be connected to the temperature control device 30 through a pipeline, and the first medium flow channel can be connected to the temperature control device 30 through a pipeline.

[0148] For example, Figure 2 As shown, the first heat exchanger 401 may have a first inlet and a first outlet, both of which are connected to the first medium flow channel, and the second heat exchanger 404 may have a second inlet and a second outlet, both of which are connected to the second medium flow channel. Taking the second medium flow channel as an example, the first inlet of the first heat exchanger 401 may be connected to the temperature control device 30 through the first connecting pipe 405, the first outlet of the first heat exchanger 401 may be connected to the second inlet of the second heat exchanger 404 through the second connecting pipe 406, and the second outlet of the second heat exchanger 404 may be connected to the temperature control device 30 through the third connecting pipe 407.

[0149] In the above technical solution, by providing the second heat exchange element 404, the temperature of the distribution box 20 can be adjusted by using the heat exchange medium heated or cooled by the temperature regulating device 30, and the second heat exchange element 404 cooperates with the first heat exchange element 401 to adjust the temperature of the distribution box 20 at different positions, which is conducive to quickly adjusting the temperature of the distribution box 20. Moreover, the distribution box 20 and the energy storage device 70 share a heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100.

[0150] According to some embodiments of the present application, the distribution box 20 has an air guide channel connected to the interior of the distribution box 20, and the second heat exchange element 404 is disposed in the air guide channel to exchange heat with the gas in the air guide channel.

[0151] Among them, the interior of the distribution box 20 is connected to the air guide channel, that is, the gas inside the distribution box 20 can flow into the air guide channel, and the gas in the air guide channel can flow into the interior of the distribution box 20. The second heat exchange element 404 can be arranged in the air guide channel, and the second heat exchange element 404 can exchange heat with the gas in the air guide channel to perform thermal management of the distribution box 20.

[0152] In the above technical solution, by arranging the second heat exchange component 404 in the air guide channel connected to the inside of the distribution box 20, the second heat exchange component 404 can exchange heat with the gas in the air guide channel, so that the distribution box 20 can be reliably thermally managed, which is beneficial to keep the distribution box 20 within a suitable temperature range for a long time, and is beneficial to improving the service life of the distribution box 20.

[0153] According to some embodiments of the present application, the air guide channel has a first open end and a second open end, the first open end is connected to the inside of the distribution box 20, and the second heat exchange element 404 is disposed at the second open end.

[0154] The inside of the distribution box 20 can be connected to the air guide channel through the first open end, and the second heat exchange member 404 can be disposed at the second open end. As some optional embodiments of the present application, the second open end can be located at any position of the air guide channel.

[0155] As some optional embodiments of the present application, the second heat exchange element 404 may close the second open end. As some optional embodiments of the present application, the second heat exchange element 404 may not close the second open end.

[0156] As some optional embodiments of the present application, along the extension direction of the air guiding channel, the first open end and the second open end may be located at two ends of the air guiding channel respectively.

[0157] As some optional embodiments of the present application, the second open end may be disposed close to the first heat exchange element 401 , which is helpful in shortening the length of the pipeline between the first heat exchange element 401 and the second heat exchange element 404 .

[0158] In the above technical solution, by setting the second heat exchanger 404 at the second open end of the air guide channel, the setting position of the second heat exchanger 404 can be reasonably set, so that the distribution box 20 can be reliably thermally managed, which is beneficial to keep the distribution box 20 within a suitable temperature range for a long time, and is beneficial to improving the service life of the distribution box 20.

[0159] According to some embodiments of the present application, Figure 1 , Figure 2 and Figure 5 As shown, the distribution box 20 includes a box body 21 and an air guide portion 22 connected to each other. The air guide portion 22 is located outside the box body 21 and forms an air guide channel. The box body 21 has a connecting hole 211 , which connects the air guide channel and the box body 21 .

[0160] Among them, the box body 21 can be connected to the air guide part 22, and the air guide part 22 can be located outside the box body 21. As some optional embodiments of the present application, the air guide part 22 can be connected to the side wall of the box body 21, the first heat exchange component 401 can be arranged on the side wall of the box body 21, and the air guide part 22 and the first heat exchange component 401 can be located on the same side of the box body 21. In this way, the setting positions of the air guide part 22 and the first heat exchange component 401 can be reasonable, and the space of the energy storage box 100 can be fully utilized.

[0161] The air guide portion 22 may form an air guide channel, and the box body 21 may have a connecting hole 211 (such as Figure 6 As shown in the figure, the connecting hole 211 can connect the air guide channel and the box body 21, that is, the air guide channel can be connected to the internal space of the box body 21 through the connecting hole 211, and the second heat exchange member 404 can be arranged in the air guide part 22 to exchange heat with the gas in the air guide channel. As some optional embodiments of the present application, the air guide part 22 can have a second mounting hole, and the second heat exchange member 404 can be arranged in the second mounting hole, or, as some optional embodiments of the present application, the second heat exchange member 404 can be arranged on the outer wall surface of the air guide part 22.

[0162] In the above technical solution, by setting a connecting hole 211 on the box body 21, the air guide channel of the air guide part 22 and the internal space of the box body 21 can be connected, so that the distribution box 20 can be thermally managed through the second heat exchange component 404 set in the air guide part 22, which is beneficial to keep the distribution box 20 in a suitable temperature range for a long time and help to increase the service life of the distribution box 20.

[0163] According to some embodiments of the present application, Figure 6 As shown, the energy storage box 100 further includes: a second air supply member 408, which is disposed on the box body 21 and corresponds to the connecting hole 211, and is suitable for sucking the gas in the box body 21 into the air guide channel.

[0164] Among them, the second air supply member 408 can be constructed as but not limited to a fan, a blower, etc., the second air supply member 408 can be arranged on the box body 21, and the second air supply member 408 can be arranged corresponding to the connecting hole 211, and the second air supply member 408 can suck the gas in the box body 21 into the air guide channel when it is working. In an embodiment where the air guide channel is not directly connected to the outside of the box body 21, the second air supply member 408 can suck the gas in the box body 21 into the air guide channel when it is working, and the second heat exchange member 404 can exchange heat with the gas in the air guide channel to adjust the temperature of the gas in the air guide channel, so that the distribution box 20 can be thermally managed, and the second air supply member 408 can make the gas in the box body 21 and the air guide channel flow, that is, the second air supply member 408 can play a turbulent role, so that the second heat exchange member 404 can contact more gas, so that the distribution box 20 can be reliably thermally managed.

[0165] In an embodiment where the air guide channel is directly connected to the outside of the box body 21, the second air supply component 408 can suck the gas in the box body 21 into the air guide channel and discharge it from the box body 21 when in operation, and the second heat exchange component 404 can perform heat exchange with the gas discharged from the box body 21 to reduce the effect of the exhausted gas on the temperature of the box body 21. It can be understood that the exhausted gas can affect the temperature of the box body 21 outside the box body 21.

[0166] In the above technical solution, by setting up the second air supply member 408, the gas in the box body 21 can be sucked into the air guide channel and discharged from the box body 21, and the second air supply member 408 can increase the air flow speed so that the second heat exchange member 404 can contact more gas, thereby reliably performing thermal management on the distribution box 20.

[0167] According to some embodiments of the present application, Figure 3 , Figure 7 and Fig. 9 As shown, the energy storage box 100 further includes: a first driving pump 50, which is connected between the second medium flow path and the temperature regulating device 30 to drive the heat exchange medium to circulate in the second medium circulation flow path.

[0168] As some optional embodiments of the present application, the second medium flow path and the temperature regulating device 30 may be connected through a pipeline. For example, the second medium flow path is arranged downstream of the first medium flow path. Figure 5As shown, the first inlet of the first heat exchanger 401 can be connected to the temperature control device 30 through the first connecting pipe 405, the first outlet of the first heat exchanger 401 can be connected to the second inlet of the second heat exchanger 404 through the second connecting pipe 406, and the second outlet of the second heat exchanger 404 can be connected to the temperature control device 30 through the third connecting pipe 407. The first driving pump 50 can be connected between the second medium flow path and the temperature control device 30. For example, the first driving pump 50 can be arranged in the first connecting pipe 405, or the first driving pump 50 can be arranged in the third connecting pipe 407. When the first driving pump 50 is working, it can drive the heat exchange medium to circulate in the second medium circulation flow path. Specifically, when the first driving pump 50 is working, it can drive the heat exchange medium to flow from the temperature control device 30 into the first heat exchanger 401 and the second heat exchanger 404 in sequence, and then the heat exchange medium can flow from the second heat exchanger 404 back to the temperature control device 30. It can be understood that, in this embodiment, the second medium flow path, the third connecting pipeline 407, the first connecting pipeline 405 and the temperature control device 30 can jointly form a second medium circulation flow path, and the second connecting pipeline 406 can be a part of the second medium flow path.

[0169] As some optional embodiments of the present application, the conduction or disconnection of the second medium circulation flow path can be controlled by the first drive pump 50. For example, when the first drive pump 50 is working, the second medium circulation flow path is connected, and when the first drive pump 50 is not working, the second medium circulation flow path is disconnected.

[0170] In the above technical solution, by providing a first driving pump 50 connected between the second medium flow path and the temperature regulating device 30, the heat exchange medium can be driven to circulate in the second medium circulation flow path, so that the distribution box 20 can be reliably thermally managed. Moreover, the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100 and help reduce the manufacturing cost of the energy storage box 100.

[0171] According to some embodiments of the present application, the energy storage box 100 further includes: a second driving pump, which is disposed in the first medium circulation flow path to drive the heat exchange medium to circulate in the first medium circulation flow path.

[0172] The second driving pump can be arranged in the first medium circulation flow path. As some optional embodiments of the present application, the temperature control device 30 and the first medium flow path of the energy storage device 70 can be connected through a pipeline, and the second driving pump can be arranged in the pipeline, or the second driving pump can be arranged in the first medium flow path, or the second driving pump can be arranged in the temperature control device 30, and the second driving pump can drive the heat exchange medium to circulate in the first medium circulation flow path. Specifically, when the second driving pump is working, it can drive the heat exchange medium from the temperature control device 30 to flow into the first medium flow path, and then the heat exchange medium can flow from the first medium flow path back to the temperature control device 30.

[0173] In the above technical solution, by arranging the second driving pump in the first medium circulation flow path, the heat exchange medium can be driven to circulate in the first medium circulation flow path, so that the energy storage device 70 can be reliably thermally managed, which is conducive to keeping the energy storage device 70 in a suitable temperature range for a long time, and is conducive to improving the service life of the energy storage device 70. In addition, the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100 and help reduce the manufacturing cost of the energy storage box 100.

[0174] According to some embodiments of the present application, there are multiple second drive pumps and multiple first medium circulation flow paths, and the multiple second drive pumps and the multiple first medium circulation flow paths are connected in a one-to-one correspondence.

[0175] Specifically, the number of the second drive pumps and the number of the first medium circulation flow paths can be set to at least two, and the number of the second drive pumps and the number of the first medium circulation flow paths can be the same, and at least two second drive pumps and at least two first medium circulation flow paths can be connected in a one-to-one correspondence. For example, the number of the second drive pumps can be set to five, and the number of the first medium circulation flow paths can also be set to five, and the five second drive pumps and the five first medium circulation flow paths can be connected in a one-to-one correspondence, and each second drive pump can drive the heat exchange medium to circulate in the corresponding first medium circulation flow path.

[0176] As some optional embodiments of the present application, the number of first medium circulation flow paths and the number of energy storage devices 70 may be the same. Specifically, each energy storage device 70 has a first medium flow path, and the first medium flow path of each energy storage device 70 may be connected to the temperature control device 30 through a pipeline. The first medium flow path, the pipeline connected to the first medium flow path, and the temperature control device 30 can form a first medium circulation flow path, and the second driving pump can drive the heat exchange medium to circulate in the corresponding first medium circulation flow path.

[0177] As some optional embodiments of the present application, the ratio of the number of first medium circulation flow paths to the number of second drive pumps can be a positive integer, such as but not limited to 2, 3, etc., so that the heat exchange medium in multiple first medium circulation flow paths can be driven by one second drive pump, which is beneficial to reducing the number of second drive pumps and reducing the cost of the energy storage box 100.

[0178] In the above technical solution, by providing a plurality of second drive pumps and a plurality of first medium circulation flow paths, and connecting the plurality of second drive pumps and the plurality of first medium circulation flow paths in a one-to-one correspondence, the heat exchange medium in the plurality of first medium circulation flow paths can be driven respectively by the plurality of second drive pumps. It should be understood that the temperature of each energy storage device 70 may be different. By specifically controlling whether each second drive pump works or not, or by specifically controlling the output power of each second drive pump, it is beneficial to achieve precise temperature control of each energy storage device 70, and to improve the temperature consistency of the plurality of energy storage devices 70 in the energy storage box 100.

[0179] According to some embodiments of the present application, Figure 1 and Figure 4 As shown, the energy storage box 100 further includes: a main control box 60 , which is connected to the energy storage device 70 to control the energy storage device 70 , and a spoiler is provided in the main control box 60 to allow the gas to flow in the main control box 60 .

[0180] The main control box 60 may be disposed in the box body 10, and the main control box 60 may be connected to the energy storage device 70, and the connection method includes but is not limited to electrical connection, communication connection, etc. The main control box 60 can control the energy storage device 70. A spoiler may be disposed in the main control box 60, and the spoiler may be configured as but is not limited to a fan, a blower, etc. When the spoiler is working, the gas can flow in the main control box 60 to adjust the temperature of the main control box 60.

[0181] As some optional embodiments of the present application, the number of main control boxes 60 and energy storage devices 70 can be set to multiple, and multiple main control boxes 60 and multiple energy storage devices 70 are connected one-to-one to control the corresponding energy storage devices 70.

[0182] In the above technical solution, by arranging a spoiler in the main control box 60, the gas can flow in the main control box 60, so that the temperature of the main control box 60 can be adjusted so that the temperature of the main control box 60 is in a suitable working range, thereby reducing the probability of failure of the energy storage box 100.

[0183] According to some embodiments of the present application, the temperature regulating device 30 has a medium inlet and a medium outlet, and the first medium flow path is connected between the medium inlet and the medium outlet to form a first medium circulation flow path.

[0184] Among them, the temperature control device 30 can heat or cool the heat exchange medium, the medium inlet of the temperature control device 30 is connected to the first medium flow path, the medium outlet of the temperature control device 30 is connected to the first medium flow path, and the first medium flow path is connected between the medium inlet and the medium outlet to form a first medium circulation flow path, and the second driving pump can drive the heat exchange medium to circulate in the first medium circulation flow path. Specifically, when the second driving pump is working, it can drive the heat exchange medium to flow from the medium outlet of the temperature control device 30 into the first medium flow path, and then the heat exchange medium in the first flow path medium can flow back to the temperature control device 30 through the medium inlet of the temperature control device 30.

[0185] In the above technical solution, by connecting the first medium flow path between the medium inlet of the temperature control device 30 and the medium outlet of the temperature control device 30, the heat exchange medium can circulate between the temperature control device 30 and the first medium flow path, which is beneficial to improving the thermal management efficiency of the temperature control device 30.

[0186] According to some embodiments of the present application, Figure 7-Figure 9 As shown, the energy storage box 100 also includes: a first pipeline assembly 80, the first pipeline assembly 80 has a first pipeline 801 and a second pipeline 802, the first pipeline 801 is connected between the medium inlet and the outlet of the corresponding first medium flow path, and the second pipeline 802 is connected between the medium outlet and the inlet of the corresponding first medium flow path.

[0187] Among them, the number of first pipeline assemblies 80 can be multiple. As some optional embodiments of the present application, the number of first pipeline assemblies 80 and the number of energy storage devices 70 can be the same, and multiple first pipeline assemblies 80 and multiple energy storage devices 70 can correspond one to one. Each first pipeline assembly 80 can have a first pipeline 801 and a second pipeline 802. The first pipeline 801 can be connected between the medium inlet of the temperature regulating device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 can be connected between the medium outlet of the temperature regulating device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70. When the second driving pump is working, it can drive the heat exchange medium to flow from the medium outlet of the temperature regulating device 30 into the second pipeline 802, the first medium flow path, and the first pipeline 801 in sequence, and flow back to the temperature regulating device 30 from the first pipeline 801.

[0188] In the above technical solution, by connecting the first pipeline 801 between the medium inlet of the temperature control device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and connecting the second pipeline 802 between the medium outlet of the temperature control device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70, the heat exchange medium can circulate between the temperature control device 30 and the first medium flow path, which is beneficial to improving the thermal management efficiency of the temperature control device 30.

[0189] According to some embodiments of the present application, Figure 1 , Figure 4 , Figure 7-Figure 9 As shown, there are multiple first pipeline assemblies 80 and multiple energy storage devices 70, and the multiple first pipeline assemblies 80 and the multiple energy storage devices 70 are connected in a one-to-one correspondence.

[0190] The number of first pipeline assemblies 80 can be set to multiple, the number of energy storage devices 70 can be set to multiple, and the number of first pipeline assemblies 80 and the number of energy storage devices 70 can be the same, for example, the number of first pipeline assemblies 80 and the number of energy storage devices 70 can be but not limited to three, four, five, six, etc., and multiple first pipeline assemblies 80 and multiple energy storage devices 70 can be connected one by one. Specifically, the first pipeline 801 of each first pipeline assembly 80 can be connected between the medium inlet of the temperature control device 30 and the outlet of the first medium flow path of the corresponding energy storage device 70, and the second pipeline 802 of each first pipeline assembly 80 can be connected between the medium outlet of the temperature control device 30 and the inlet of the first medium flow path of the corresponding energy storage device 70.

[0191] As some optional embodiments of the present application, the number of second drive pumps can be the same as the number of first pipeline assemblies 80, and multiple second drive pumps and multiple first pipeline assemblies 80 can be arranged in a one-to-one correspondence. Each second drive pump can drive the heat exchange medium to circulate in the corresponding first pipeline assembly 80, so that the heat exchange medium circulates between the corresponding first pipeline assembly 80, the corresponding energy storage device 70 and the temperature control device 30. The second drive pumps can be arranged on the corresponding first pipeline assembly 80, or the second drive pumps can be arranged on the temperature control device 30.

[0192] As some optional embodiments of the present application, the ratio of the number of energy storage devices 70 to the number of first pipeline assemblies 80 can be a positive integer, such as but not limited to 2, 3, etc., so that multiple energy storage devices 70 can be connected in a circulation loop through a first pipeline assembly 80, which is beneficial to reducing the number of first pipeline assemblies 80 and reducing the cost of the energy storage box 100.

[0193] In the above technical solution, by providing a plurality of first pipeline assemblies 80 and energy storage devices 70, and connecting the plurality of first pipeline assemblies 80 and the plurality of energy storage devices 70 in a one-to-one correspondence, the corresponding energy storage devices 70 can be connected to a plurality of circulation loops through the plurality of first pipeline assemblies 80, which is beneficial to achieve precise temperature control of the plurality of energy storage devices 70, and is beneficial to improve the temperature consistency of the plurality of energy storage devices 70 in the energy storage box 100. Moreover, the distribution box 20 and the plurality of energy storage devices 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100.

[0194] According to some embodiments of the present application, Figure 7 As shown, a plurality of first pipeline assemblies 80 are arranged in parallel.

[0195] Among them, the first pipeline 801 of each first pipeline assembly 80 can be connected to the medium inlet of the temperature control device 30, and the second pipeline 802 of each first pipeline assembly 80 can be connected to the medium outlet of the temperature control device 30, and multiple first pipeline assemblies 80 are arranged in parallel, that is, every two first pipeline assemblies 80 are not connected in sequence.

[0196] As some optional embodiments of the present application, the temperature control device 30 has multiple medium inlets and multiple medium outlets, the number of medium inlets, the number of medium outlets and the number of multiple first pipeline assemblies 80 are the same, and each first pipeline assembly 80 can be connected to the corresponding medium inlet and medium outlet.

[0197] In the above technical solution, by arranging a plurality of first pipeline assemblies 80 in parallel, the interference between the plurality of first pipeline assemblies 80 can be reduced, which is conducive to achieving precise temperature control of the plurality of energy storage devices 70, and is conducive to improving the temperature consistency of the plurality of energy storage devices 70 in the energy storage box 100. In addition, the plurality of energy storage devices 70 can share one temperature regulating device 30, which can simplify the structure of the energy storage box 100 and is conducive to reducing the manufacturing cost of the energy storage box 100. In addition, by arranging a plurality of first pipeline assemblies 80 in parallel, it is conducive to keeping the temperature of the heat exchange medium in the plurality of first pipeline assemblies 80 consistent, and is conducive to reducing the temperature difference of the heat exchange medium in the plurality of first pipeline assemblies 80.

[0198] As a specific embodiment of the present application, an energy storage box 100 may include two temperature regulating devices 30 and ten energy storage devices 70. In this embodiment, Figure 7 What is shown is a temperature control device 30 and a first pipeline component 80 of an energy storage tank 100 .

[0199] According to some embodiments of the present application, Figure 7 As shown, the second medium flow path is connected to the temperature regulating device 30 through the first pipe assembly 80 to form a second medium circulation flow path.

[0200] The heat exchange device 40 has a second medium flow path, and the second medium flow path of the heat exchange device 40 can be connected to the temperature control device 30 through the first pipe assembly 80 to form a second medium circulation flow path.

[0201] As some optional embodiments of the present application, the heat exchange device 40 may include a first heat exchange element 401 and a second heat exchange element 404. The second medium flow channel of the second heat exchange element 404 may be arranged upstream of the first medium flow channel of the first heat exchange element 401. As some optional embodiments of the present application, the second medium flow channel of the second heat exchange element 404 may be arranged downstream of the first medium flow channel of the first heat exchange element 401. For example, the second medium flow channel is arranged downstream of the first medium flow channel. Figure 5 As shown, the first heat exchange element 401 may have a first inlet and a first outlet, both of which are connected to the first medium flow channel, and the second heat exchange element 404 may have a second inlet and a second outlet, both of which are connected to the second medium flow channel.

[0202] The first inlet of the first heat exchanger 401 can be communicated with the first pipeline assembly 80 through the first connecting pipeline 405 to communicate with the temperature regulating device 30. Specifically, the first inlet of the first heat exchanger 401 can be communicated with the second pipeline 802 of the first pipeline assembly 80 through the first connecting pipeline 405 to communicate with the temperature regulating device 30. The first outlet of the first heat exchanger 401 can be communicated with the second inlet of the second heat exchanger 404 through the second connecting pipeline 406. The second outlet of the second heat exchanger 404 can be communicated with the first pipeline assembly 80 through the third connecting pipeline 407 to communicate with the temperature regulating device 30. Specifically, the second outlet of the second heat exchanger 404 can be communicated with the first pipeline 801 of the first pipeline assembly 80 through the third connecting pipeline 407 to communicate with the temperature regulating device 30.

[0203] In the above technical solution, the second medium flow path is connected to the temperature regulating device 30 through the first pipeline assembly 80 to form a second medium circulation flow path, so that the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100, and the heat exchange medium in the temperature regulating device 30 can heat or cool the distribution box 20, which can reduce the energy consumption of the energy storage box 100.

[0204] According to some embodiments of the present application, Figure 7 As shown, the temperature regulating device 30 has a heat exchange flow path 90 , and a medium inlet and a medium outlet are formed at both ends of the heat exchange flow path 90 .

[0205] The temperature regulating device 30 can selectively heat or cool the heat exchange medium, and the temperature regulating device 30 can have a heat exchange flow path 90, and the two ends of the heat exchange flow path 90 can be formed with a medium inlet and a medium outlet, and the first medium flow path can be connected between the medium inlet and the medium outlet to form a first medium circulation flow path. Specifically, the first pipeline 801 of the first pipeline assembly 80 can be connected to the medium inlet, and the second pipeline 802 of the first pipeline assembly 80 can be connected to the medium outlet. In addition, when the second driving pump is working, it can drive the heat exchange medium to flow from the medium outlet of the heat exchange flow path 90 into the first pipeline assembly 80, and then the heat exchange medium in the first pipeline assembly 80 can flow back to the temperature regulating device 30 through the medium inlet of the heat exchange flow path 90.

[0206] Furthermore, the second medium flow path of the heat exchange device 40 may be connected to the medium inlet and the medium outlet of the temperature control device 30 through the first pipe assembly 80 to form a second medium circulation flow path.

[0207] In the above technical solution, by forming a medium inlet and a medium outlet at both ends of the heat exchange flow path 90, it is convenient to connect the first medium flow path between the medium inlet and the medium outlet, which is conducive to reducing the difficulty of assembling the energy storage box 100 and improving the assembly efficiency of the energy storage box 100. Moreover, the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100.

[0208] According to some embodiments of the present application, there are multiple heat exchange paths 90 and multiple energy storage devices 70, and the multiple heat exchange paths 90 and the multiple energy storage devices 70 are connected in a one-to-one correspondence.

[0209] The number of heat exchange paths 90 can be set to multiple, the number of energy storage devices 70 can be set to multiple, each heat exchange path 90 has a medium inlet and a medium outlet, and the first medium paths of multiple energy storage devices 70 can be connected between the medium inlet and the medium outlet of the corresponding heat exchange path 90 to form a first medium circulation path. In addition, the second medium path of the heat exchange device 40 can be connected to the medium inlet and the medium outlet of the corresponding heat exchange path 90 through any one of the first pipeline components 80.

[0210] As some optional embodiments of the present application, the number of second drive pumps can be the same as the number of heat exchange flow paths 90, and multiple second drive pumps and multiple heat exchange flow paths 90 can be arranged in a one-to-one correspondence, and each second drive pump can drive the heat exchange medium to flow from the medium outlet of the corresponding heat exchange flow path 90 into the corresponding first medium flow path. As some optional embodiments of the present application, each second drive pump can be arranged in the corresponding heat exchange flow path 90.

[0211] In the above technical solution, by setting the heat exchange flow path 90 and the energy storage device 70 to be multiple, and by connecting the multiple heat exchange flow paths 90 and the multiple energy storage devices 70 one by one, the corresponding energy storage devices 70 can be connected to multiple circulation loops through the multiple heat exchange flow paths 90, which is conducive to achieving accurate temperature control of the multiple energy storage devices 70 and improving the temperature consistency of the multiple energy storage devices 70 in the energy storage box 100. In addition, the multiple energy storage devices 70 can share one temperature regulating device 30, and the distribution box 20 and the multiple energy storage devices 70 can share one heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100.

[0212] As some optional embodiments of the present application, the box 10 may have multiple independent installation compartments, for example, the box 10 may have a battery compartment, an electrical compartment, a first installation compartment, and a second installation compartment, the battery compartment, the electrical compartment, the first installation compartment, and the second installation compartment are all independent of each other, the main control box 60 may be arranged in the first installation compartment, the temperature regulating device 30 may be arranged in the second installation compartment, the energy storage device 70 may be arranged in the battery compartment, and the distribution box 20 may be arranged in the electrical compartment. Such an arrangement can reduce the probability of mutual interference between the energy storage device 70, the distribution box 20, the main control box 60, and the temperature regulating device 30, which is conducive to improving the reliability of the energy storage box 100.

[0213] As some optional embodiments of the present application, the temperature control device 30 can be constructed as a water cooling unit.

[0214] According to some embodiments of the present application, Fig.16 and Fig.17 As shown, the present application also provides an energy storage system 200 , and the energy storage system 200 includes the above-mentioned energy storage box 100 .

[0215] According to some embodiments of the present application, Fig.16 and Fig.17 As shown, the energy storage system 200 further includes: a bidirectional converter 201 , and the bidirectional converter 201 is connected to at least one energy storage box 100 .

[0216] Among them, the bidirectional converter 201 (Power Conversion System-PCS) can be connected to at least one energy storage box 100, and the bidirectional converter 201 can perform AC and DC conversion, and the bidirectional converter 201 can realize protective charging and discharging of the energy storage device 70. It should be noted that the bidirectional converter 201 can be connected to but not limited to two, three, four, etc. energy storage boxes 100. Each energy storage box 100 can have multiple energy storage devices 70 (for example, five or ten), and each energy storage box 100 can have multiple main control boxes 60, and multiple main control boxes 60 can be connected to multiple energy storage devices 70 accordingly.

[0217] As an optional embodiment of the present application, Fig.16 As shown, the bidirectional converter 201 can be connected to an energy storage box 100. As an optional embodiment of the present application, Fig.17 As shown, the bidirectional converter 201 can be connected to two energy storage boxes 100 .

[0218] In the above technical solution, a bidirectional converter 201 can be connected to multiple energy storage boxes 100 to realize protective charging and discharging of the energy storage devices 70 of the multiple energy storage boxes 100, which is beneficial to reducing costs and also beneficial to increasing the service life of the energy storage devices 70.

[0219] According to some embodiments of the present application, see Figure 1-Figure 17 As shown, the present application provides an energy storage box 100, which includes a box body 10, a distribution box 20, an energy storage device 70, a heat exchange mechanism, a first drive pump 50, a second drive pump, a first pipeline assembly 80 and a main control box 60.

[0220] The distribution box 20 and the energy storage device 70 are both arranged in the box 10. The energy storage device 70 has a first medium flow path. The heat exchange mechanism includes a temperature regulating device 30 and a heat exchange device 40. The temperature regulating device 30 is arranged in the box 10. The temperature regulating device 30 is connected to the first medium flow path to form a first medium circulation flow path. The temperature regulating device 30 can selectively heat or cool the heat exchange medium. At least part of the heat exchange device 40 is arranged in the distribution box 20 and exchanges heat with the distribution box 20. The heat exchange device 40 has a second medium flow path. The temperature regulating device 30 is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off.

[0221] The heat exchange device 40 includes a first heat exchange member 401, a first radiator 402, a first air supply member 403, a second heat exchange member 404, and a second air supply member 408. The first heat exchange member 401 has a first medium flow channel formed therein and is attached to the distribution box 20. The first radiator 402, the first air supply member 403, and the first heat exchange member 401 can be stacked, and the first heat exchange member 401 can be arranged between the first radiator 402 and the first air supply member 403. The second heat exchange member 404 has a second medium flow channel formed therein and is arranged in the distribution box 20. The second medium flow channel is connected between the first medium flow channel and the temperature regulating device 30 to connect the first medium flow channel and the temperature regulating device 30.

[0222] The distribution box 20 includes a connected box body 21 and an air guide portion 22. The air guide portion 22 is located outside the box body 21 and forms an air guide channel. The air guide channel is connected to the interior of the distribution box 20. The second heat exchange component 404 is arranged in the air guide channel to exchange heat with the gas in the air guide channel. The second air supply component 408 is arranged in the box body 21 and is suitable for sucking the gas in the box body 21 into the air guide channel.

[0223] The first driving pump 50 is connected between the second medium flow path and the temperature control device 30 to drive the heat exchange medium to circulate in the second medium circulation flow path. There are multiple second driving pumps and multiple first medium circulation flow paths. The multiple second driving pumps and multiple first medium circulation flow paths are connected one-to-one. The second driving pump can drive the heat exchange medium to circulate in the corresponding first medium circulation flow path.

[0224] The temperature control device 30 has a medium inlet and a medium outlet, and the first pipeline assembly 80 has a first pipeline 801 and a second pipeline 802. The first pipeline 801 is connected between the medium inlet and the outlet of the corresponding first medium flow path, and the second pipeline 802 is connected between the medium outlet and the inlet of the corresponding first medium flow path to form a first medium circulation flow path. There are multiple first pipeline assemblies 80 and energy storage devices 70. Multiple first pipeline assemblies 80 and multiple energy storage devices 70 are connected one by one. Multiple first pipeline assemblies 80 are arranged in parallel, and the second medium flow path is connected to the temperature control device 30 through the first pipeline assembly 80 to form a second medium circulation flow path.

[0225] The main control box 60 is connected to the energy storage device 70 to control the energy storage device 70. The main control box 60 has a spoiler to make the gas flow in the main control box 60. The spoiler, the first air supply member 403, and the second air supply member 408 can all be configured as fans.

[0226] In the above technical solution, by cooperating with the temperature regulating device 30 and the heat exchange device 40, the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism, which can simplify the structure of the energy storage box 100, thereby reducing the manufacturing cost of the energy storage box 100, and the heat exchange medium in the temperature regulating device 30 can heat or cool the distribution box 20, which can reduce the energy consumption of the energy storage box 100.

[0227] like Fig.18As shown, according to the thermal management method of the energy storage box of the embodiment of the present application, the energy storage box is the energy storage box in the above embodiment, and the energy storage box includes a distribution box, an energy storage device, a temperature regulating device and a heat exchange device. The energy storage device has a first medium flow path, and the temperature regulating device is connected to the first medium flow path to form a first medium circulation flow path. The temperature regulating device selectively heats or cools the heat exchange medium. At least part of the heat exchange device is arranged in the distribution box and exchanges heat with the distribution box. The heat exchange device has a second medium flow path, and the temperature regulating device is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off. The thermal management method includes the following steps:

[0228] S100: Acquire temperature information of battery cells in an energy storage device.

[0229] The controller of the energy storage box obtains the temperature information of the battery cells in the energy storage device. In some embodiments of the present application, the energy storage box may be provided with a temperature sensor, and each battery cell is provided with a temperature sensor corresponding to the temperature sensor, which is used to detect the temperature of the corresponding battery cell. The temperature sensor is connected to the controller for communication, and the controller can obtain the temperature information of the battery in the energy storage device through the temperature sensor.

[0230] S200: Control the temperature control device according to the temperature information to adjust the temperature in the energy storage device and / or the distribution box.

[0231] Among them, the temperature regulating device can have multiple working modes, for example, the temperature regulating device can have a cooling mode, a heating mode, a self-circulation mode and a dormant mode. When the temperature regulating device is working in the cooling mode, the temperature regulating device cools the heat exchange medium to reduce the temperature of the heat exchange medium. When the temperature regulating device is working in the heating mode, the temperature regulating device heats the heat exchange medium to increase the temperature of the heat exchange medium. When the temperature regulating device is in the self-circulation mode, the temperature regulating device does not heat the heat exchange medium and does not cool the heat exchange medium, and the heat exchange medium circulates in the first medium circulation flow path and / or the second medium circulation flow path. When the temperature regulating device is in the dormant mode, the temperature regulating device does not work, and the heat exchange medium can stop flowing. After the controller obtains the temperature information of the battery cell in the energy storage device, the controller controls the temperature regulating device according to the temperature information to control the temperature regulating device to be in the corresponding working mode, so as to adjust the temperature in the energy storage device and / or the distribution box. It should be noted that when the temperature regulating device is working, the heat exchange medium flowing out of the temperature regulating device can flow into the first medium flow path and perform heat exchange with the energy storage device to perform thermal management on the energy storage device. When the second medium circulation flow path is connected, the heat exchange medium flowing out of the temperature regulating device can flow into the second medium flow path of the heat exchange device and exchange heat with the distribution box to perform thermal management of the distribution box. When the second medium circulation flow path is disconnected, the heat exchange medium flowing out of the temperature regulating device cannot flow into the second medium flow path of the heat exchange device, and the heat exchange medium flowing out of the temperature regulating device cannot perform thermal management of the distribution box.

[0232] Specifically, the controller obtains the temperature information of the battery cells in the energy storage device. After the controller obtains the temperature information of the battery cells in the energy storage device, the controller controls the temperature control device according to the obtained temperature information to control the temperature control device to adjust to a working mode that conforms to the current temperature information of the battery cells, thereby adjusting the temperature in the energy storage device and / or the distribution box, and further making the temperature of the energy storage device and / or the distribution box suitable.

[0233] In the above technical solution, the temperature information of the battery cells in the energy storage device is obtained, and the temperature regulating device is controlled according to the temperature information, so that the temperature in the energy storage device and / or the distribution box can be adjusted, so that the distribution box and the energy storage device can share a heat exchange mechanism. The temperature of the distribution box and the energy storage device is regulated by a temperature regulating device, which can simplify the structure of the energy storage box, thereby reducing the manufacturing cost of the energy storage box. In addition, the heat exchange medium in the temperature regulating device can heat or cool the distribution box, and the heat exchange medium in the temperature regulating device can also heat or cool the energy storage device, which can reduce the energy consumption of the energy storage box.

[0234] According to some embodiments of the present application, when it is determined that the temperature regulating device is not faulty, the temperature information of the battery cells in the energy storage device is obtained. The temperature regulating device can be connected to the controller of the energy storage box for communication. For example, the controller can be connected to the temperature regulating device via a CAN (Controller Area Network) line. The controller can detect the working state of the temperature regulating device to determine whether the temperature regulating device is faulty. If the temperature regulating device is faulty, the controller reports the fault information and controls the energy storage box to shut down. If it is determined that the temperature regulating device is not faulty, the controller obtains the temperature information of the battery cells in the energy storage device. After the controller obtains the temperature information of the battery cells in the energy storage device, the controller controls the temperature regulating device according to the obtained temperature information to control the temperature regulating device to adjust to a working mode that conforms to the temperature information of the current battery cells, so that the temperature in the energy storage device and / or the distribution box can be adjusted, and the temperature of the energy storage device and / or the distribution box can be made suitable.

[0235] In the above technical solution, when it is determined that the temperature regulating device has no faults, the temperature information of the battery cells in the energy storage device is obtained, and the temperature regulating device is controlled according to the temperature information, so that the temperature in the energy storage device and / or the distribution box can be adjusted, and the distribution box and the energy storage device can share a heat exchange mechanism. By adjusting the temperature of the distribution box and the energy storage device through a temperature regulating device, the structure of the energy storage box can be simplified, thereby reducing the manufacturing cost of the energy storage box, and the heat exchange medium in the temperature regulating device can heat or cool the distribution box, and the heat exchange medium in the temperature regulating device can also heat or cool the energy storage device, which can reduce the energy consumption of the energy storage box.

[0236] According to some embodiments of the present application, “controlling the temperature adjustment device according to the temperature information” may include:

[0237] The maximum battery temperature is determined according to the temperature information. When the maximum battery temperature is greater than the first preset temperature, the temperature regulating device is controlled to perform cooling work, and at least the cooled heat exchange medium is controlled to circulate in the first medium circulation flow path until the maximum battery temperature is less than or equal to the second preset temperature, wherein the second preset temperature is less than the first preset temperature.

[0238] The first preset temperature may be a range value or a specific value. The present application takes the first preset temperature as 23°C as an example. The second preset temperature may be a range value or a specific value. The present application takes the second preset temperature as 20°C as an example. However, the present application is not limited thereto, and the values ​​of the first preset temperature and the second preset temperature may be specifically set according to actual conditions.

[0239] The controller obtains the temperature information of the battery cells in the energy storage device, and determines the maximum battery temperature according to the temperature information. When the controller determines that the maximum battery temperature is greater than the first preset temperature, the controller controls the temperature regulating device to adjust to the cooling mode, so that the temperature regulating device performs cooling work, and controls the heat exchange medium cooled by the temperature regulating device to circulate in the first medium circulation flow path, so as to cool the energy storage device until the maximum battery temperature is less than or equal to the second preset temperature, so that the temperature of the energy storage device is suitable. In addition, if the distribution box needs to be cooled, the second medium circulation flow path is controlled to be turned on, and the heat exchange medium cooled by the temperature regulating device circulates in the second medium circulation flow path, so as to cool the distribution box, so as to make the temperature of the distribution box suitable. If the distribution box does not need to be cooled, the second medium circulation flow path can be controlled to be disconnected, and the heat exchange medium cooled by the temperature regulating device cannot flow into the second medium flow path, and the heat exchange medium cooled by the temperature regulating device cannot cool the distribution box.

[0240] In the above technical solution, the controller determines the maximum battery temperature according to the temperature information. When the controller determines that the maximum battery temperature is greater than the first preset temperature, the controller controls the temperature regulating device to adjust to the cooling mode so that the temperature regulating device performs cooling work, and controls the heat exchange medium cooled by the temperature regulating device to circulate in the first medium circulation flow path so as to cool the energy storage device, thereby maintaining the temperature of the energy storage device at an appropriate temperature. Moreover, after controlling the second medium circulation flow path to be turned on, the heat exchange medium cooled by the temperature regulating device circulates in the second medium circulation flow path so as to cool the distribution box, thereby maintaining the temperature of the distribution box at an appropriate temperature, thereby improving the safety of the energy storage box.

[0241] According to some embodiments of the present application, when the maximum battery temperature is less than or equal to the second preset temperature, the thermal management method may further include:

[0242] The temperature regulating device is controlled to stop refrigeration, and the heat exchange medium in the first medium circulation flow path is kept circulating.

[0243] The controller obtains temperature information of the battery cells in the energy storage device, determines the maximum battery temperature according to the temperature information, and when the controller determines that the maximum battery temperature is greater than the first preset temperature, the controller controls the temperature control device to adjust to the cooling mode so that the temperature control device performs cooling work, and controls the heat exchange medium cooled by the temperature control device to circulate in the first medium circulation flow path so as to cool the energy storage device. When the maximum battery temperature drops to less than or equal to the second preset temperature, the controller controls the temperature control device to stop cooling, and the heat exchange medium can flow into and out of the temperature control device, and the temperature control device does not heat the heat exchange medium, and the heat exchange medium can continue to circulate in the first medium circulation flow path. At this time, the temperature control device works in the "self-circulation mode", and during the circulation of the heat exchange medium in the first medium circulation flow path, the heat exchange medium can exchange heat with the energy storage device, so that the battery cells in the energy storage device can be kept at a suitable temperature, thereby improving the safety of battery use.

[0244] In the above technical solution, when the maximum battery temperature drops to less than or equal to the second preset temperature, the controller controls the temperature control device to stop refrigeration and keeps the heat exchange medium in the first medium circulation flow path to continue to circulate. The heat exchange medium in the first medium circulation flow path can continue to exchange heat with the energy storage device, so that the battery cells in the energy storage device can be kept at a suitable temperature, thereby improving the safety of battery use.

[0245] According to some embodiments of the present application, in the case where the maximum battery temperature is determined according to the temperature information, controlling the temperature regulating device according to the temperature information may further include:

[0246] The minimum battery temperature is determined according to the temperature information. When the minimum battery temperature is less than or equal to a third preset temperature, the temperature regulating device is controlled to perform heating, and at least the heated heat exchange medium is controlled to circulate in the first medium circulation flow path until the minimum battery temperature is greater than or equal to a fourth preset temperature, wherein the third preset temperature is less than the fourth preset temperature, and the fourth preset temperature is less than the second preset temperature.

[0247] The third preset temperature may be a range value or a specific value, and the present application takes the third preset temperature as 12° C. as an example for illustration. The fourth preset temperature may be a range value or a specific value, and the present application takes the fourth preset temperature as 15° C. as an example for illustration. However, the present application is not limited thereto, and the values ​​of the third preset temperature and the fourth preset temperature may be specifically set according to actual conditions.

[0248] The controller obtains the temperature information of the battery cells in the energy storage device, and determines the minimum battery temperature according to the temperature information. When the controller determines that the minimum battery temperature is less than or equal to the third preset temperature, the controller controls the temperature regulating device to perform heating (i.e., controls the temperature regulating device to be adjusted to the heating mode), and controls the heat exchange medium heated by the temperature regulating device to circulate in the first medium circulation flow path, so that the energy storage device is heated, until the minimum battery temperature is greater than or equal to the fourth preset temperature, so that the temperature of the battery cells in the energy storage device is appropriate. In addition, if the distribution box needs to be heated, the second medium circulation flow path is controlled to be connected, and the heat exchange medium heated by the temperature regulating device circulates in the second medium circulation flow path, so that the distribution box is heated, so that the temperature of the distribution box is appropriate. If the distribution box does not need to be heated, the second medium circulation flow path can be controlled to be disconnected, and the heat exchange medium heated by the temperature regulating device cannot flow into the second medium flow path, and the heat exchange medium heated by the temperature regulating device cannot heat the distribution box.

[0249] In the above technical solution, the controller obtains the temperature information of the battery cells in the energy storage device, and determines the minimum battery temperature according to the temperature information. When the controller determines that the minimum battery temperature is less than or equal to the third preset temperature, the controller controls the temperature regulating device to perform heating work, and controls the heat exchange medium heated by the temperature regulating device to circulate in the first medium circulation flow path, so as to increase the temperature of the energy storage device until the minimum battery temperature is greater than or equal to the fourth preset temperature, so that the temperature of the battery cells in the energy storage device is appropriate. In addition, if the distribution box needs to be heated, the second medium circulation flow path is controlled to be turned on, and the heat exchange medium heated by the temperature regulating device circulates in the second medium circulation flow path, so as to increase the temperature of the distribution box, so as to make the temperature of the distribution box appropriate.

[0250] According to some embodiments of the present application, when the lowest battery temperature is greater than or equal to a fourth preset temperature, the thermal management method may further include:

[0251] The temperature regulating device is controlled to stop heating, and the heat exchange medium in the first medium circulation flow path is kept circulating.

[0252] Among them, the controller obtains temperature information of the battery cells in the energy storage device, and the controller determines the minimum battery temperature according to the temperature information. When the controller determines that the minimum battery temperature is greater than or equal to the fourth preset temperature, the controller controls the temperature control device to stop heating, and the heat exchange medium can flow into and out of the temperature control device. The temperature control device does not cool the heat exchange medium, and the heat exchange medium can continue to circulate in the first medium circulation flow path. At this time, the temperature control device works in the "self-circulation mode". During the circulation of the heat exchange medium in the first medium circulation flow path, the heat exchange medium can exchange heat with the energy storage device, so that the battery cells in the energy storage device can be kept at a suitable temperature, thereby improving the safety of battery use.

[0253] In the above technical solution, the controller obtains the temperature information of the battery cells in the energy storage device, and determines the minimum battery temperature according to the temperature information. When the controller determines that the minimum battery temperature is greater than or equal to the fourth preset temperature, the controller controls the temperature regulating device to stop heating. During the circulation of the heat exchange medium in the first medium circulation flow path, the heat exchange medium can exchange heat with the energy storage device, so that the battery cells in the energy storage device can be kept at a suitable temperature, thereby improving the safety of battery use.

[0254] According to some embodiments of the present application, before obtaining temperature information of battery cells in the energy storage device, the thermal management method may further include: communicating with the temperature regulating device to detect a fault alarm signal of the temperature regulating device, wherein the fault alarm signal is used to determine whether the temperature regulating device is fault-free.

[0255] Before obtaining the temperature information of the battery cell in the energy storage device, the controller communicates with the temperature regulating device. When the controller detects the fault alarm signal sent by the temperature regulating device, the controller determines that the temperature regulating device has a fault, and the controller controls the energy storage box to shut down. In addition, the controller can report the fault information, or the controller can control the alarm to sound an alarm to remind the staff that the energy storage box has a fault. The alarm can be a sound alarm or a light alarm. When the controller does not detect the fault alarm signal sent by the temperature regulating device, the controller can determine that the temperature regulating device has no fault.

[0256] In the above technical solution, before obtaining the temperature information of the battery cells in the energy storage device, it is possible to determine whether the temperature regulating device has a fault by communicating with the temperature regulating device to detect the fault alarm signal of the temperature regulating device.

[0257] like Fig.19 As shown, a thermal management method according to a specific embodiment of the present application includes the following steps:

[0258] S101, the controller communicates with the temperature regulating device to detect the fault alarm signal of the temperature regulating device. If the fault alarm signal of the temperature regulating device is detected, step S102 is executed. If the fault alarm signal of the temperature regulating device is not detected, that is, the temperature regulating device works normally, step S103 is executed.

[0259] S102: The controller reports fault information and controls the energy storage box to shut down.

[0260] S103, obtaining temperature information of battery cells in the energy storage device, determining the maximum battery temperature according to the temperature information, and controlling the temperature regulating device to perform cooling when the maximum battery temperature is greater than the first preset temperature until the maximum battery temperature is less than or equal to the second preset temperature, and executing step S104.

[0261] S104. When it is detected that the maximum battery temperature is less than or equal to the second preset temperature, the temperature regulating device is controlled to stop cooling and the heat exchange medium in the first medium circulation flow path is kept circulating until the maximum battery temperature is less than or equal to the first preset temperature and greater than the second preset temperature, and then step S105 is executed.

[0262] S105. When it is detected that the lowest battery temperature is less than or equal to the third preset temperature, the temperature regulating device is controlled to perform heating until the lowest battery temperature is greater than or equal to the fourth preset temperature, and step S106 is executed.

[0263] S106: When it is detected that the lowest battery temperature is greater than or equal to a fourth preset temperature, the temperature regulating device is controlled to stop heating and the heat exchange medium in the first medium circulation flow path is kept circulating.

[0264] According to some embodiments of the present application, the energy storage box may further include a first drive pump, the first drive pump is connected between the second medium flow path and the temperature regulating device to drive the heat exchange medium to circulate in the second medium circulation flow path, a battery compartment and an electrical compartment are formed in the energy storage box, the energy storage device is arranged in the battery compartment, and the distribution box is arranged in the electrical compartment. The thermal management method may also include:

[0265] When it is determined that the first driving pump has no fault, the temperature of the heat exchange medium is obtained, and when the temperature of the heat exchange medium is less than the fifth preset temperature or the temperature regulating device performs refrigeration work,

[0266] If the temperature in the battery compartment is greater than a sixth preset temperature, or the temperature in the electrical compartment is greater than a seventh preset temperature, controlling the first drive pump to start;

[0267] If the temperature in the battery compartment is less than or equal to the sixth preset temperature, and the temperature in the electrical compartment is less than or equal to the seventh preset temperature, the first driving pump is controlled to be turned off.

[0268] The first drive pump can be connected between the second medium flow path and the temperature control device. When the first drive pump is turned on, the first drive pump can connect the second medium flow path and the temperature control device. At this time, the heat exchange medium flowing out of the temperature control device flows into the second medium flow path through the first drive pump, and then the heat exchange medium can flow back to the temperature control device from the second medium circulation flow path. When the first drive pump is turned off, the first drive pump can disconnect the connection between the second medium flow path and the temperature control device. At this time, the heat exchange medium flowing out of the temperature control device cannot flow into the second medium flow path through the first drive pump. By setting the first drive pump, the effect of controlling the second medium circulation flow path to be selectively turned on or off can be achieved.

[0269] Among them, the controller can be connected to the first drive pump for communication, and the controller can control the first drive pump to be turned on or off. For example: the controller can be connected to the first drive pump via a CAN line, and the controller can detect the working status of the first drive pump to determine whether the first drive pump fails. If the first drive pump fails, the controller reports the fault information and controls the energy storage box to shut down. The energy storage box can be provided with multiple temperature sensors, and the multiple temperature sensors are all connected to the controller for communication. Some temperature sensors are used to detect the temperature of the heat exchange medium, some temperature sensors are used to detect the temperature in the battery compartment, and some temperature sensors are used to detect the temperature in the electrical compartment, so that the controller can obtain the temperature information of the heat exchange medium, the temperature information in the battery compartment, and the temperature information in the electrical compartment.

[0270] When the controller determines that the first drive pump has no faults, the controller obtains the temperature of the heat exchange medium in the energy storage box, and when the temperature of the heat exchange medium is lower than the fifth preset temperature, or the temperature regulating device is performing cooling operation, the controller determines the temperature in the battery compartment and the temperature in the electrical compartment; if the temperature in the battery compartment is higher than the sixth preset temperature, or the temperature in the electrical compartment is higher than the seventh preset temperature, the controller controls the first drive pump to turn on, and a portion of the heat exchange medium flowing out of the temperature regulating device flows into the first medium circulation path and exchanges heat with the energy storage device, and another portion of the heat exchange medium flowing out of the temperature regulating device flows into the second medium circulation path and exchanges heat with the distribution box, thereby achieving a cooling effect on both the energy storage device and the distribution box at the same time.

[0271] When the controller determines that the first drive pump has no faults, the controller obtains the temperature of the heat exchange medium in the energy storage box, and when the temperature of the heat exchange medium is less than the fifth preset temperature, or the temperature regulating device is performing cooling operation, the controller determines the temperature in the battery compartment and the temperature in the electrical compartment. If the temperature in the battery compartment is less than or equal to the sixth preset temperature, and the temperature in the electrical compartment is less than or equal to the seventh preset temperature, the controller controls the first drive pump to close. At this time, the heat exchange medium flowing out of the temperature regulating device cannot flow into the second medium flow path, and the distribution box can also meet the heat dissipation requirements. The heat exchange medium flowing out of the temperature regulating device all flows in the first medium circulation flow path to exchange heat with the energy storage device, which can improve the heat exchange efficiency between the heat exchange medium and the energy storage device, thereby rapidly reducing the temperature in the energy storage device.

[0272] It should be noted that the fifth preset temperature can be a range value or a specific value. The present application takes the fifth preset temperature as 25°C as an example for description. The sixth preset temperature can be a range value or a specific value. The present application takes the sixth preset temperature as 40°C as an example for description. The seventh preset temperature can be a range value or a specific value. The present application takes the seventh preset temperature as 40°C as an example for description. However, the present application is not limited thereto. The values ​​of the fifth preset temperature, the sixth preset temperature and the seventh preset temperature can be specifically set according to actual conditions.

[0273] In the above technical solution, when the controller determines that the first drive pump has no faults, the controller obtains the temperature of the heat exchange medium in the energy storage box, and when the temperature of the heat exchange medium is lower than the fifth preset temperature, or the temperature regulating device is performing cooling operation, the controller determines the temperature in the battery compartment and the temperature in the electrical compartment. If the temperature in the battery compartment is higher than the sixth preset temperature, or the temperature in the electrical compartment is higher than the seventh preset temperature, the first drive pump is controlled to turn on, thereby achieving the effect of cooling the energy storage device and the distribution box at the same time.

[0274] When the controller determines that the first drive pump has no faults, the controller obtains the temperature of the heat exchange medium in the energy storage box, and when the temperature of the heat exchange medium is less than the fifth preset temperature, or the temperature regulating device is performing cooling operation, the controller determines the temperature in the battery compartment and the temperature in the electrical compartment. If the temperature in the battery compartment is less than or equal to the sixth preset temperature, and the temperature in the electrical compartment is less than or equal to the seventh preset temperature, the first drive pump is controlled to be closed. At this time, the heat exchange medium flowing out of the temperature regulating device cannot flow into the second medium flow path, and the distribution box can also meet the heat dissipation requirements, thereby improving the heat exchange efficiency between the heat exchange medium and the energy storage device, thereby quickly reducing the temperature in the energy storage device.

[0275] According to some embodiments of the present application, after obtaining the temperature of the heat exchange medium, the thermal management method may further include:

[0276] When the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device performs heating work,

[0277] If the temperature in the battery compartment is lower than an eighth preset temperature, or the temperature in the electrical compartment is lower than a ninth preset temperature, controlling the first driving pump to start;

[0278] If the temperature in the battery compartment is greater than or equal to an eighth preset temperature, and the temperature in the electrical compartment is greater than or equal to a ninth preset temperature, the first driving pump is controlled to be turned off.

[0279] Among them, when the controller determines that the first drive pump has no fault, the controller obtains the temperature of the heat exchange medium in the energy storage box. After the controller obtains the temperature of the heat exchange medium, when the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device performs heating work, if the temperature in the battery compartment is less than the eighth preset temperature, or the temperature in the electrical compartment is less than the ninth preset temperature, the energy storage device and the distribution box need to be heated, then the controller controls the first drive pump to turn on, and a part of the heat exchange medium flowing out of the temperature regulating device flows into the first medium circulation flow path and exchanges heat with the energy storage device to heat the energy storage device and increase the temperature of the energy storage device, and another part of the heat exchange medium flowing out of the temperature regulating device flows into the second medium circulation flow path and exchanges heat with the distribution box to heat the distribution box and increase the temperature of the distribution box, thereby achieving the effect of heating the energy storage device and the distribution box at the same time.

[0280] When the controller determines that the first drive pump has no fault, the controller obtains the temperature of the heat exchange medium in the energy storage box. After the controller obtains the temperature of the heat exchange medium, when the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device is performing heating work, if the temperature in the battery compartment is greater than or equal to the eighth preset temperature and the temperature in the electrical compartment is greater than or equal to the ninth preset temperature, the distribution box does not need to be heated at this time, and the controller controls the first drive pump to turn off. At this time, the heat exchange medium flowing out of the temperature regulating device cannot flow into the second medium flow path, and the distribution box can also meet the working temperature requirements. The heat exchange medium flowing out of the temperature regulating device all flows in the first medium circulation flow path to exchange heat with the energy storage device to heat the energy storage device, which can improve the heat exchange efficiency between the heat exchange medium and the energy storage device, thereby rapidly increasing the temperature in the energy storage device.

[0281] It should be noted that the eighth preset temperature can be a range value or a specific value. The present application takes the eighth preset temperature as -10°C as an example for illustration. The ninth preset temperature can be a range value or a specific value. The present application takes the ninth preset temperature as -10°C as an example for illustration. However, the present application is not limited thereto, and the values ​​of the eighth preset temperature and the ninth preset temperature can be specifically set according to actual conditions.

[0282] In the above technical solution, after the controller obtains the temperature of the heat exchange medium, when the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device is performing heating work, if the temperature in the battery compartment is less than the eighth preset temperature, or the temperature in the electrical compartment is less than the ninth preset temperature, the energy storage device and the distribution box need to be heated at this time, then the controller controls the first drive pump to turn on, so as to achieve the effect of heating the energy storage device and the distribution box at the same time. If the temperature in the energy storage device is greater than or equal to the eighth preset temperature, and the temperature in the distribution box is greater than or equal to the ninth preset temperature, the distribution box does not need to be heated at this time, then the controller controls the first drive pump to turn off, which can improve the heat exchange efficiency between the heat exchange medium and the energy storage device, so that the temperature in the energy storage device can be quickly increased.

[0283] According to some embodiments of the present application, before determining that the first driving pump has no fault, the thermal management method may further include: connecting to the first driving pump in a dry contact manner to detect a fault alarm signal of the first driving pump.

[0284] Among them, "dry contacts" are two states on an electrical switch, including closed and open. There is no polarity between the two contacts of the dry contacts and they can be interchanged. Before determining that the first drive pump is fault-free, the controller is connected to the first drive pump through a dry contact. The controller can control the first drive pump, thereby achieving the effect of the controller controlling the first drive pump to turn on or off. In addition, the controller can detect the fault alarm signal of the first drive pump. When the controller detects the fault alarm signal of the first drive pump, the controller controls the energy storage box to shut down. At the same time, the controller can control the alarm to send an alarm message, thereby prompting the staff that the first drive pump is faulty.

[0285] In the above technical solution, the controller and the first drive pump are connected by dry contact, and the controller can detect the fault alarm signal of the first drive pump. When the controller detects the fault alarm signal of the first drive pump, the controller controls the energy storage box to shut down. At the same time, the controller can control the alarm to send out an alarm message, thereby prompting the staff that the first drive pump is faulty. In addition, the controller can control the first drive pump, so as to achieve the effect of the controller controlling the first drive pump to be turned on or off.

[0286] like Fig. 20 As shown, according to another specific embodiment of the thermal management method of the present application, in the initial state, the controller detects whether the first drive pump has a fault. When the controller determines that the first drive pump has a fault, the controller reports the fault information and controls the energy storage box to shut down. When the controller determines that the first drive pump has no fault, the controller obtains the temperature of the heat exchange medium, and when the temperature of the heat exchange medium is less than the fifth preset temperature, or the temperature regulating device performs refrigeration work.

[0287] If the temperature in the battery compartment is greater than the sixth preset temperature, or the temperature in the electrical compartment is greater than the seventh preset temperature, the controller controls the first driving pump to turn on. At this time, the controller continuously detects the temperature in the battery compartment and the temperature in the electrical compartment. When the temperature in the battery compartment is less than or equal to the sixth preset temperature, or the temperature in the electrical compartment is less than or equal to the seventh preset temperature, the controller controls the first driving pump to turn off. If the temperature in the battery compartment is less than or equal to the sixth preset temperature, and the temperature in the electrical compartment is less than or equal to the seventh preset temperature, the controller controls the first driving pump to turn off.

[0288] After the controller obtains the temperature of the heat exchange medium, when the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device performs heating. If the temperature in the battery compartment is less than the eighth preset temperature, or the temperature in the electrical compartment is less than the ninth preset temperature, the controller controls the first drive pump to turn on. At this time, the controller continuously detects the temperature in the battery compartment and the temperature in the electrical compartment. When the temperature in the battery compartment is greater than or equal to the eighth preset temperature, or the temperature in the electrical compartment is greater than or equal to the ninth preset temperature, the controller controls the first drive pump to turn off. If the temperature in the battery compartment is greater than or equal to the eighth preset temperature, and the temperature in the electrical compartment is greater than or equal to the ninth preset temperature, the controller controls the first drive pump to turn off.

[0289] According to some embodiments of the present application, the energy storage box may further include a main control box, which is connected to the energy storage device to control the energy storage device, and has a spoiler in the main control box to allow gas to flow in the main control box. The thermal management method may further include:

[0290] Get the temperature inside the main control box;

[0291] When the temperature in the main control box is within a preset temperature range, the spoiler is driven to work.

[0292] The main control box can be arranged in the box body, and the main control box can be connected to the energy storage device, and the connection method includes but is not limited to electrical connection, communication connection, etc. The main control box can control the energy storage device. A spoiler can be arranged in the main control box, and the spoiler can be constructed as but not limited to a fan, a blower, etc. When the spoiler is working, it can make the gas flow in the main control box to adjust the temperature of the main control box.

[0293] Among them, a temperature sensor can be provided in the main control box, and the temperature sensor in the main control box is connected to the controller. After the temperature sensor detects the temperature in the main control box, the temperature information is transmitted to the controller, so that the controller can obtain the temperature in the main control box, and the controller can obtain the temperature in the main control box in real time. The controller can be connected to the spoiler. When the temperature in the main control box is in a preset temperature range, the controller can drive the spoiler to work. When the spoiler works, the gas can flow in the main control box, thereby achieving the effect of cooling the main control box. The "preset temperature range" can be A, A is greater than 50°C and less than or equal to 85°C. The "preset temperature range" can be reasonably designed according to actual usage conditions and is not specifically limited here.

[0294] In the above technical solution, the temperature inside the main control box is obtained through the controller. When the temperature inside the main control box is within a preset temperature range, the controller drives the spoiler to work. When the spoiler works, the gas can flow in the main control box, thereby achieving the effect of cooling the main control box.

[0295] According to some embodiments of the present application, after obtaining the temperature in the main control box, the thermal management method may further include:

[0296] If the temperature inside the main control box is greater than the upper limit temperature of the preset temperature range, over-temperature protection is executed.

[0297] Among them, after the controller obtains the temperature in the main control box, if the temperature in the main control box is greater than the upper limit temperature of the preset temperature range, the controller controls the energy storage box to perform over-temperature protection, the energy storage box is powered on with high voltage and reports a fault, and it is considered that the spoiler is working abnormally.

[0298] In the above technical solution, after obtaining the temperature inside the main control box, if the temperature inside the main control box is greater than the upper limit temperature of the preset temperature range, it is considered that the spoiler is working abnormally, and the controller controls the energy storage box to perform over-temperature protection, which can reduce the risk of working failure of the main control box due to high temperature, thereby improving the safety of use of the main control box, and further improving the safety of use of the energy storage box.

[0299] like Fig.21 As shown, according to a thermal management method of a specific embodiment of the present application,

[0300] S10, the controller obtains the temperature in the main control box.

[0301] S20. When the temperature in the main control box is greater than the lower limit temperature of the preset temperature range, determine whether the temperature in the main control box is greater than the upper limit temperature of the preset temperature range. If yes, execute step S30; if not, execute step S40.

[0302] S30, executing over-temperature protection.

[0303] S40: The controller drives the spoiler to operate.

[0304] S50: If the temperature in the main control box is less than or equal to the lower limit temperature of the preset temperature range, the controller controls the spoiler to close.

[0305] According to the battery management system of the embodiment of the present application, the battery management system includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the steps of the thermal management method of the above embodiment are implemented.

[0306] In the above technical solution, the temperature of the distribution box, the main control box and the energy storage device can be safely and reliably managed, which is beneficial to improving the safety of the energy storage box and reducing the energy consumption of the energy storage box.

[0307] like Fig. 22 As shown, the battery management system may include at least one processor 1201, at least one communication interface 1202, at least one memory 1203 and at least one communication bus 1204. In an embodiment of the present application, the number of the processor 1201, the communication interface 1202, the memory 1203 and the communication bus 1204 is at least one, and the processor 1201, the communication interface 1202 and the memory 1203 communicate with each other through the communication bus 1204.

[0308] The memory 1203 may be, but is not limited to, a random access memory (RAM), a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable read-only memory (EEPROM), etc. The memory 1203 is used to store programs, and the processor 1201 executes the program after receiving the execution instruction to implement the steps of the thermal management method of the energy storage box described in the above embodiment.

[0309] Processor 1201 may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The various methods, steps and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0310] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0311] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0312] According to the computer-readable storage medium of the embodiment of the present application, a computer program is stored thereon, and when the computer program is executed by a processor, the steps of the thermal management method of the above embodiment are implemented.

[0313] In the above technical solution, the temperature of the distribution box, the main control box and the energy storage device can be safely and reliably managed, which is beneficial to improving the safety of the energy storage box and reducing the energy consumption of the energy storage box.

[0314] like Figure 1-Figure 6 As shown, the energy storage box according to the embodiment of the present application includes: a controller, a distribution box 20, an energy storage device 70, a temperature regulating device 30 and a heat exchange device 40, the energy storage device 70 has a first medium flow path, the temperature regulating device 30 is connected to the first medium flow path to form a first medium circulation flow path, the temperature regulating device 30 selectively heats or cools the heat exchange medium, at least a portion of the heat exchange device 40 is arranged in the distribution box 20 and exchanges heat with the distribution box 20, the heat exchange device 40 has a second medium flow path, the temperature regulating device 30 is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off.

[0315] The controller is used to obtain temperature information of the battery cells in the energy storage device 70 , and control the temperature regulating device 30 according to the temperature information to adjust the temperature in the energy storage device 70 and / or the distribution box 20 .

[0316] Specifically, the controller detects the working state of the temperature regulating device 30 to determine whether the temperature regulating device 30 fails. When the controller determines that the temperature regulating device 30 is not faulty, the controller obtains the temperature information of the battery cells in the energy storage device 70. After the controller obtains the temperature information of the battery cells in the energy storage device 70, the controller controls the temperature regulating device 30 according to the obtained temperature information to control the temperature regulating device 30 to adjust to a working mode that conforms to the current temperature information of the battery cells, thereby adjusting the temperature in the energy storage device 70 and / or the distribution box 20, and further making the temperature of the energy storage device 70 and / or the distribution box 20 suitable.

[0317] It should be noted that when the second medium circulation flow path is turned on, the heat exchange medium flowing out of the temperature control device 30 can flow into the second medium flow path of the heat exchange device 40 and perform heat exchange with the distribution box 20 to perform thermal management of the distribution box 20. When the second medium circulation flow path is disconnected, the heat exchange medium flowing out of the temperature control device 30 cannot flow into the second medium flow path of the heat exchange device 40, and the heat exchange medium flowing out of the temperature control device 30 cannot perform thermal management of the distribution box 20.

[0318] In the above technical solution, when it is determined that the temperature regulating device 30 is not faulty, the temperature information of the battery cells in the energy storage device 70 is obtained, and the temperature regulating device 30 is controlled according to the temperature information, so that the temperature in the energy storage device 70 and / or the distribution box 20 can be adjusted, so that the distribution box 20 and the energy storage device 70 can share a heat exchange mechanism. By adjusting the temperatures of the distribution box 20 and the energy storage device 70 by a temperature regulating device 30, the structure of the energy storage box 100 can be simplified, thereby reducing the manufacturing cost of the energy storage box 100, and the heat exchange medium in the temperature regulating device 30 can heat or cool the distribution box 20, and the heat exchange medium in the temperature regulating device 30 can also heat or cool the energy storage device 70, which can reduce the energy consumption of the energy storage box 100.

[0319] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0320] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A thermal management method for an energy storage tank, characterized in that: The energy storage box includes a distribution box, an energy storage device, a temperature regulating device and a heat exchange device. The energy storage device has a first medium flow path. The temperature regulating device is connected to the first medium flow path to form a first medium circulation flow path. The temperature regulating device selectively heats or cools the heat exchange medium. At least part of the heat exchange device is arranged in the distribution box and exchanges heat with the distribution box. The heat exchange device has a second medium flow path. The temperature regulating device is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off. The method includes: Acquiring temperature information of battery cells in the energy storage device; The temperature regulating device is controlled according to the temperature information to adjust the temperature in the energy storage device and / or the distribution box.

2. The method according to claim 1, characterized in that: Controlling the temperature adjustment device according to the temperature information includes: determining a maximum battery temperature according to the temperature information; When the maximum battery temperature is greater than a first preset temperature, the temperature regulating device is controlled to perform cooling work, and at least the cooled heat exchange medium is controlled to circulate in the first medium circulation flow path until the maximum battery temperature is less than or equal to a second preset temperature, wherein the second preset temperature is lower than the first preset temperature.

3. The method according to claim 2, characterized in that When the maximum battery temperature is less than or equal to a second preset temperature, the method further includes: The temperature regulating device is controlled to stop refrigeration, and the heat exchange medium in the first medium circulation flow path is kept circulating.

4. The method according to claim 2, characterized in that: In the case where the maximum battery temperature is determined according to the temperature information, controlling the temperature regulating device according to the temperature information further includes: The minimum battery temperature is determined according to the temperature information. When the minimum battery temperature is less than or equal to a third preset temperature, the temperature regulating device is controlled to perform heating, and at least the heated heat exchange medium is controlled to circulate in the first medium circulation flow path until the minimum battery temperature is greater than or equal to a fourth preset temperature, wherein the third preset temperature is less than the fourth preset temperature, and the fourth preset temperature is less than the second preset temperature.

5. The method according to claim 4, characterized in that When the lowest battery temperature is greater than or equal to a fourth preset temperature, the method further includes: The temperature regulating device is controlled to stop heating, and the heat exchange medium in the first medium circulation flow path is kept circulating.

6. The method according to any one of claims 1 to 5, characterized in that Before obtaining the temperature information of the battery cells in the energy storage device, the method further includes: Communicate with the temperature regulating device to detect a fault alarm signal of the temperature regulating device, wherein the fault alarm signal is used to determine whether the temperature regulating device is fault-free.

7. The method according to any one of claims 1 to 5, characterized in that The energy storage box further includes a first driving pump, which is connected between the second medium flow path and the temperature regulating device to drive the heat exchange medium to circulate in the second medium circulation flow path. A battery compartment and an electrical compartment are formed in the energy storage box, the energy storage device is disposed in the battery compartment, and the distribution box is disposed in the electrical compartment. The method further includes: When it is determined that the first driving pump has no fault, the temperature of the heat exchange medium is obtained, and when the temperature of the heat exchange medium is less than a fifth preset temperature or the temperature regulating device performs refrigeration operation, If the temperature in the battery compartment is greater than a sixth preset temperature, or the temperature in the electrical compartment is greater than a seventh preset temperature, controlling the first driving pump to start; If the temperature in the battery compartment is less than or equal to a sixth preset temperature, and the temperature in the electrical compartment is less than or equal to a seventh preset temperature, the first driving pump is controlled to be turned off.

8. The method according to claim 7, characterized in that After obtaining the temperature of the heat exchange medium, the method further includes: When the temperature of the heat exchange medium is greater than or equal to the fifth preset temperature and the temperature regulating device performs heating operation, If the temperature in the battery compartment is lower than an eighth preset temperature, or the temperature in the electrical compartment is lower than a ninth preset temperature, controlling the first driving pump to start; If the temperature in the battery compartment is greater than or equal to an eighth preset temperature, and the temperature in the electrical compartment is greater than or equal to a ninth preset temperature, the first driving pump is controlled to be turned off.

9. The method according to claim 7, characterized in that: Before determining that the first drive pump has no fault, the method further includes: A dry contact is used to connect the first driving pump to detect a fault alarm signal of the first driving pump.

10. The method according to any one of claims 1 to 5, characterized in that The energy storage box further includes a main control box, which is connected to the energy storage device to control the energy storage device, and has a spoiler in the main control box to allow gas to flow in the main control box. The method further includes: Obtaining the temperature in the main control box; When the temperature in the main control box is within a preset temperature range, the spoiler is driven to work.

11. The method according to claim 10, characterized in that After obtaining the temperature in the main control box, the method further includes: If the temperature in the main control box is greater than the upper limit temperature of the preset temperature range, over-temperature protection is performed.

12. A battery management system, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 11 are implemented.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented.

14. An energy storage box, characterized in that: include: A distribution box, an energy storage device, a temperature regulating device and a heat exchange device, wherein the energy storage device has a first medium flow path, the temperature regulating device is connected to the first medium flow path to form a first medium circulation flow path, the temperature regulating device selectively heats or cools a heat exchange medium, at least part of the heat exchange device is disposed in the distribution box and exchanges heat with the distribution box, the heat exchange device has a second medium flow path, the temperature regulating device is connected to the second medium flow path to form a second medium circulation flow path, and the second medium circulation flow path is selectively turned on or off; The controller is used to obtain the temperature information of the battery cells in the energy storage device and control the temperature regulating device according to the temperature information to regulate the temperature in the energy storage device and / or the distribution box.

15. An energy storage system, characterized in that: Comprising at least one energy storage box according to claim 14.

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