Battery pack, thermal management system, method, device and equipment, and storage medium

Abstract

The invention provides a battery pack, a thermal management system, a thermal management method, a thermal management device, equipment and a storage medium, and relates to an energy storage battery technology. The system comprises a temperature execution unit and a temperature control unit, and the temperature execution unit is arranged in a battery pack; the temperature execution unit comprises a temperature source, a temperature adjusting plate arranged between adjacent battery packs, a temperature sensor used for acquiring first temperature information of each battery pack and / or second temperature information of each temperature adjusting plate, and a temperature adjusting valve; the temperature control unit is connected with the temperature sensor and the temperature adjusting valve and used for obtaining the first temperature information and / or the second temperature information and further used for generating a temperature adjusting instruction used for controlling the corresponding temperature adjusting valve according to the first temperature information and / or the second temperature information so that the temperature adjusting valve can respond to the temperature adjusting instruction to execute opening adjusting operation. According to the invention, the use safety and the service life of the battery pack can be guaranteed.

Description

Technical Field

[0001] The present application relates to energy storage battery technology, and in particular to a battery pack and thermal management system, method, device, equipment, and storage medium. Background Art

[0002] To ensure that the battery pack can operate safely, efficiently and reliably under various working conditions, effective thermal management of the battery pack is required. Specifically, thermal management refers to effective heat dissipation when the battery pack is overheated, and effective heating or insulation when the battery pack temperature is too low.

[0003] At present, thermal management of battery packs is achieved through thermal management systems. Thermal management systems generally include cooling / heating media, heat exchangers, temperature sensors, control units, and pipes and valves for transporting cooling or heating media. Among them, the temperature sensor is used to monitor the internal temperature of the battery pack and send the temperature information to the control unit. The control unit controls the corresponding valve according to the temperature information to achieve cooling or heating.

[0004] In the above process, there is a defect that easily leads to uneven temperatures of various battery groups in the battery pack, which is not conducive to ensuring the operating safety of the battery pack. Summary of the invention

[0005] The present application provides a battery pack and thermal management system, method, device, equipment, and storage medium for achieving temperature consistency of each battery group in a battery pack, thereby facilitating the safe operation of the battery pack.

[0006] In a first aspect, the present application provides a thermal management system, the system comprising: a temperature execution unit and a temperature control unit, the temperature execution unit being disposed inside a battery pack, the battery pack comprising at least two battery packs;

[0007] The temperature execution unit includes a temperature source, a temperature regulating plate arranged between adjacent battery packs, a temperature sensor for obtaining first temperature information of each battery pack and / or second temperature information of each temperature regulating plate, and a temperature regulating valve for connecting the temperature source and the temperature regulating plate;

[0008] The temperature control unit is connected to the temperature sensor and the temperature regulating valve, and is used to obtain the first temperature information and / or the second temperature information through the temperature sensor, and is also used to generate a temperature regulating instruction for controlling the corresponding temperature regulating valve based on the first temperature information and / or the second temperature information, so that the temperature regulating valve responds to the temperature regulating instruction to perform an opening adjustment operation.

[0009] In one possible implementation, every two temperature regulating plates are determined to be an regulating plate group, and each regulating plate group corresponds to a temperature regulating valve and a three-layer battery group; wherein the temperature regulating valve is a three-way valve, and the three-layer battery group includes a first battery group, a second battery group, and a third battery group arranged in sequence, and the first regulating plate of the regulating plate group is located between the first battery group and the second battery group, and the second regulating plate of the regulating plate group is located between the second battery group and the third battery group.

[0010] In a possible implementation, the temperature control unit is specifically used for:

[0011] For any three-layer battery pack, when the first temperature information indicates that the temperature of the first battery pack meets the first preset range, and the temperatures of the second battery pack and the third battery pack do not meet the first preset range, a first temperature adjustment instruction for controlling a target temperature adjustment valve is generated and sent to the target temperature adjustment valve; the target temperature adjustment valve is the temperature adjustment valve corresponding to the three-layer battery pack;

[0012] The target temperature regulating valve is specifically used to: respond to the first temperature regulating instruction, adjust to a first opening, so that the temperature source is connected to the first regulating plate and is disconnected from the second regulating plate.

[0013] In a possible implementation, the temperature control unit is specifically used for:

[0014] For any three-layer battery pack, when the first temperature information indicates that the temperature of the third battery pack meets the first preset range, and the temperatures of the first battery pack and the second battery pack do not meet the first preset range, a second temperature adjustment instruction for controlling a target temperature adjustment valve is generated and sent to the target temperature adjustment valve; the target temperature adjustment valve is the temperature adjustment valve corresponding to the three-layer battery pack;

[0015] The target temperature regulating valve is specifically used to: respond to the second temperature regulating instruction, adjust to a second opening, so that the temperature source is disconnected from the first regulating plate and is connected to the second regulating plate.

[0016] In a possible implementation, the temperature control unit is specifically used for:

[0017] For any three-layer battery pack, when the first temperature information indicates that the temperature of the second battery pack meets the first preset range, and the temperatures of the first battery pack and the third battery pack do not meet the first preset range, a third temperature adjustment instruction for controlling the target temperature adjustment valve is generated and sent to the target temperature adjustment valve;

[0018] The target temperature regulating valve is specifically used to: respond to the third temperature adjustment instruction and adjust to a third opening, wherein the third opening is an average of the first opening and the second opening; when the target temperature regulating valve is at the first opening, the temperature source is connected to the first adjustment plate and is not connected to the second adjustment plate; when the target temperature regulating valve is at the second opening, the temperature source is not connected to the first adjustment plate and is connected to the second adjustment plate.

[0019] In a possible implementation, the temperature control unit is specifically used for:

[0020] For any three-layer battery pack, when the first temperature information indicates that the temperatures of at least two battery packs in the three-layer battery pack meet the first preset range, if the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is greater than the inlet and outlet temperature difference of the second regulating plate, a fourth temperature regulating instruction for controlling the target temperature regulating valve is generated and sent to the target temperature regulating valve;

[0021] The target temperature regulating valve is specifically used for: responding to the fourth temperature regulation and adjusting to a fourth opening, wherein the fourth opening is expressed as γ*: γ*=γ-ε[(γ2-γ1) / 2], wherein when the opening of the target temperature regulating valve is maintained at γ, the temperature source is connected to the first regulating plate and the second regulating plate, when the opening of the target temperature regulating valve is maintained at γ1, the temperature source is connected to the first regulating plate and is not connected to the second regulating plate, and when the opening of the target temperature regulating valve is maintained at γ2, the temperature source is not connected to the first regulating plate and is connected to the second regulating plate; ε is the three-way valve adjustment parameter, ε∈[0,1].

[0022] In a possible implementation, the temperature control unit is specifically used for:

[0023] For any three-layer battery pack, when the first temperature information indicates that the temperatures of at least two battery packs in the three-layer battery pack meet the first preset range, if the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is less than the inlet and outlet temperature difference of the second regulating plate, a fifth temperature regulating instruction for controlling the target temperature regulating valve is generated;

[0024] The target temperature regulating valve is specifically used to respond to the fifth temperature regulating instruction and adjust to a fifth opening degree, wherein the fifth opening degree is expressed as γ*: γ*=γ+ε[(γ2-γ1) / 2].

[0025] In a possible implementation, when the temperature regulating plate is provided between each two adjacent battery packs, the temperature control unit is further used for:

[0026] For any three-layer battery group, when the first temperature information indicates that only the temperature of the first battery group or the third battery group meets the first preset range, the opening information of the adjacent temperature regulating valve is obtained; the adjacent temperature regulating valve is the temperature regulating valve corresponding to the adjacent three-layer battery group of the three-layer battery group, the first battery group is the third battery group of the adjacent three-layer battery group, or the third battery group is the first battery group of the adjacent three-layer battery group;

[0027] Based on the first temperature information and the opening information, determine whether to generate a first temperature adjustment instruction or a second temperature adjustment instruction for controlling a target temperature control valve; the first temperature adjustment instruction is used to adjust the target temperature control valve to a first opening, and the second temperature adjustment instruction is used to adjust the target temperature control valve to a second opening, and the target temperature control valve is the temperature control valve corresponding to the three-layer battery pack.

[0028] In a possible implementation, the temperature control unit is specifically used for:

[0029] When the opening information indicates that the adjacent temperature control valve is at the target opening, and the first temperature information indicates that the temperature of the first battery group or the third battery group satisfies the second preset range, it is determined to generate the first temperature control instruction or the second temperature control instruction; when the minimum value of the second preset range is greater than the minimum value of the first preset range, and the adjacent temperature control valve is at the target opening, the other temperature control plates adjacent to the first battery group or the third battery group are connected to the temperature source.

[0030] In one possible implementation, a temperature regulating valve is provided between every two adjacent temperature regulating plates, and the temperature regulating valve is a three-way valve; wherein, among the temperature regulating plates, the temperature regulating plate in which there are two adjacent temperature regulating plates and corresponding to the two temperature regulating valves is a first temperature regulating plate; and the temperature regulating plate in which there are two adjacent temperature regulating plates and corresponding to one temperature regulating valve is a second temperature regulating plate.

[0031] In a possible implementation, the temperature control unit is specifically used for:

[0032] For a battery pack adjacent to any of the first temperature regulating plates, when the first temperature information indicates that the temperature of the battery pack satisfies a first preset range, a temperature regulating instruction for controlling the two temperature regulating valves is generated according to the priorities of the two temperature regulating valves corresponding to the first temperature regulating plate; the priority is determined based on the opening information of the two temperature regulating valves and the second temperature information of the first temperature regulating plate.

[0033] In a possible implementation, the temperature control unit is specifically used for:

[0034] For a battery pack adjacent only to any second temperature regulating plate, when the first temperature information indicates that the temperature of the battery pack meets a first preset range, a temperature regulating instruction for controlling a temperature regulating valve corresponding to the second temperature regulating plate is generated.

[0035] In a second aspect, the present application provides a thermal management method, which is applied to the thermal management system as described in any one of the first aspects; the method comprises:

[0036] Acquiring first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through a temperature sensor;

[0037] Based on the first temperature information and / or the second temperature information, a temperature adjustment instruction for controlling the corresponding temperature control valve is generated, so that the temperature control valve responds to the temperature adjustment instruction to perform an opening adjustment operation; the temperature control valve is used to connect the temperature adjustment plate corresponding to the corresponding battery pack and the temperature source.

[0038] In a third aspect, the present application provides a thermal management device, the device comprising:

[0039] an acquisition module, used for acquiring first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through a temperature sensor;

[0040] A management module is used to generate a temperature adjustment instruction for controlling a corresponding temperature control valve based on the first temperature information and / or the second temperature information, so that the temperature control valve responds to the temperature adjustment instruction to perform an opening adjustment operation; the temperature control valve is used to connect the temperature adjustment plate corresponding to the corresponding battery pack and the temperature source.

[0041] In a fourth aspect, the present application provides an electronic device, comprising a processor, and a memory communicatively connected to the processor;

[0042] The memory stores computer-executable instructions;

[0043] The processor executes the computer-executable instructions stored in the memory to implement the method according to the second aspect.

[0044] In a fifth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the method described in the second aspect.

[0045] In a sixth aspect, the present application provides a computer program product, including a computer program, which implements the method described in the second aspect when executed by a processor.

[0046] In a seventh aspect, the present application provides a battery pack, comprising at least two battery groups and a thermal management system as described in any one of the first aspects.

[0047] The present application provides a battery pack and thermal management system, method, device, equipment, and storage medium, wherein in the system of the present application, the temperature control unit obtains the first temperature information and / or the second temperature information through the temperature sensor, and generates a temperature adjustment instruction for controlling the corresponding temperature regulating valve through the first temperature information and / or the second temperature information, so that the temperature regulating valve responds to the temperature adjustment instruction to perform an opening adjustment operation, thereby realizing thermal management of the corresponding battery pack. Through the system of the present application, independent thermal management of each battery pack can be realized, and the heat exchange requirements of different battery packs during the operation of the multi-layer battery pack can be met, which is conducive to achieving temperature consistency of different battery packs, and then conducive to increasing the service life of the multi-layer battery pack, and having higher safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0049] Figure 1 An application scenario diagram of a thermal management system provided in an embodiment of the present application;

[0050] Figure 2 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 1 ;

[0051] Figure 3 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 2 ;

[0052] Figure 4 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 3 ;

[0053] Figure 5 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 4 ;

[0054] Figure 6 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 5 ;

[0055] Figure 7 A schematic diagram of a thermal management method provided in an embodiment of the present application;

[0056] Figure 8 A schematic diagram of the structure of a thermal management device provided in an embodiment of the present application;

[0057] Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0058] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0059] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0060] To ensure that the battery pack can operate safely, efficiently and reliably under various working conditions, it is necessary to effectively manage the thermal performance of the battery pack through a thermal management system. The thermal management system is a system used to control and adjust the temperature of the battery pack to ensure that the battery pack operates within the optimal temperature range, thereby improving its performance, life and safety.

[0061] Specifically, the thermal management system dissipates heat from the battery pack when the battery pack is overheated, and heats or insulates the battery pack when the battery pack temperature is too low, thereby achieving thermal management of the battery pack. In the known technology, the thermal management system generally includes a cooling / heating medium, a heat exchanger, a temperature sensor, a control unit, and pipes and valves for conveying cooling or heating medium.

[0062] Among them, the heat exchanger is used to exchange heat between the cooling / heating medium and the battery pack to ensure effective thermal management; temperature sensors are distributed inside and outside the battery pack to monitor the battery temperature in real time; the control unit is used to receive data from the temperature sensor and control the corresponding valve according to the preset temperature range to realize the operation of the cooling or heating system.

[0063] Exemplarily, a multi-layer battery pack with a cooling system is provided in the known technology, including a battery pack and a cooling assembly, the battery pack including a plurality of battery strings, each battery string including a plurality of battery cells connected in series, the battery strings are arranged along the y direction, and the plurality of battery strings are arranged along the z direction; the cooling assembly includes a first cooling tube, a second cooling tube, a liquid outlet tube, and a liquid inlet tube; the first cooling tube and the second cooling tube are respectively fixedly arranged on both sides of the battery pack along the y direction, and both ends of each battery string are respectively fluidly connected to the first cooling tube and the second cooling tube; the liquid inlet tube is fluidly connected to one end of the first cooling tube, and the liquid outlet tube is fluidly connected to one end of the second cooling tube.

[0064] In the above process, the battery cells inside the battery pack are cooled by the first cooling tube and the second cooling tube connected to the liquid inlet and outlet pipes. It is understandable that there is essentially only one battery cooling system, and it is impossible to perform thermal management separately according to the heating requirements of different battery cells, which can easily lead to uneven temperature of the entire battery cell, and thus easily lead to the battery pack service life reduction.

[0065] Therefore, the present application provides a battery pack and thermal management system, method, device, equipment, and storage medium for solving the above problems. Specifically, in the present application, a temperature regulating plate is set between adjacent battery packs, a temperature regulating valve is set to connect the temperature regulating plate and the temperature source, and a temperature control unit is configured to generate a temperature regulating instruction for controlling the corresponding temperature regulating valve according to the first temperature information of the battery pack and / or the second temperature information of the temperature regulating plate, so as to realize thermal management of the battery pack.

[0066] Through the above process, when any part of the battery pack has a need for heat exchange, the corresponding temperature regulating valve can be independently controlled to enable the corresponding battery pack to achieve heat exchange in time, rather than performing heat exchange treatment on the entire battery pack. This is beneficial for maintaining temperature consistency among the battery packs in the battery pack, which in turn helps to increase the service life of the battery pack and make the battery pack safer and more reliable.

[0067] It can be understood that the system of the present application is applicable to any battery pack including multiple battery packs. For example, Figure 1 An application scenario diagram of a thermal management system provided in an embodiment of the present application, such as Figure 1 As shown, the method of the present application can be used for a battery pack including three layers of battery packs. Specifically, the battery pack includes a cover plate, a bottom plate, and three layers of battery packs, namely, an upper battery pack, a middle battery pack, and a lower battery pack, stacked in the Z direction. Each battery pack includes a plurality of single cells.

[0068] In this application scenario, based on the thermal management system of the present application, the temperature execution unit includes a temperature regulating plate between the upper battery group and the middle battery group, between the middle battery group and the lower battery group, as well as a temperature source, a water inlet pipe for connecting the temperature regulating plate and the temperature source, a water outlet pipe (not shown in the figure), and a three-way valve, and also includes a first temperature sensor arranged at the inlet and outlet of the temperature regulating plate, and a second temperature sensor for monitoring each battery group.

[0069] Further, based on the thermal management system of the present application, the temperature control unit is connected to the first temperature sensor and the second temperature sensor, and is used to obtain the first temperature information of each battery pack and the second temperature information of each temperature regulating plate. The temperature control unit is also connected to the three-way valve, and is used to generate a temperature adjustment instruction for controlling the three-way valve based on the obtained first temperature information and second temperature information.

[0070] It is understandable that the temperature control unit sends the temperature adjustment instruction to the three-way valve. When the three-way valve receives the temperature adjustment instruction, it adjusts the current opening in response to the temperature adjustment instruction to achieve thermal management of the corresponding battery pack.

[0071] Based on the above settings, the temperature control unit can independently manage the corresponding temperature adjustment plate through the three-way valve according to the first temperature information and the second temperature information, so as to cope with the heat exchange requirements of different battery groups during the operation of the multi-layer battery pack, which is conducive to achieving uniform control of the temperature fields of different battery groups, and further helps to increase the service life of the multi-layer battery pack and improve safety and reliability.

[0072] It is understandable that in practical applications, the three-way valve can be replaced by two two-way valves, which are used to connect the two temperature adjustment plates and the temperature source respectively, and this is not limited in this embodiment. In addition, the temperature control unit can also control the three-way valve according to the first temperature information or the second temperature information, and this is not limited in this embodiment, as long as it can achieve thermal management of each battery pack separately.

[0073] It is worth noting that the medium in the temperature regulating plate can be liquid, and the temperature source can specifically be a cooler or a heater. The cooler and the heater are respectively connected to a water source, and are used to cool the water source when the corresponding battery group in the battery pack needs to be cooled, and to heat the water source when the corresponding battery group in the battery pack needs to be heated.

[0074] It is understandable that the present embodiment does not limit the form of the medium in the temperature regulating plate, as long as the thermal management of the battery pack can be achieved.

[0075] In the following, some embodiments of the present application are described in detail in conjunction with the accompanying drawings. In the case where the embodiments do not conflict with each other, the following embodiments and features in the embodiments can be combined with each other.

[0076] The present application provides a thermal management system. Figure 2 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 1 , Figure 3 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 2 ,like Figure 2 and Figure 3 As shown, a thermal management system provided by an embodiment of the present application includes a temperature execution unit and a temperature management unit. Specifically, the temperature execution unit is arranged inside a battery pack, and the battery pack includes at least two battery groups, and each battery group includes a plurality of single cells.

[0077] The temperature execution unit includes a temperature source, a temperature regulating plate, a temperature sensor and a temperature regulating valve. Specifically, in this embodiment, one temperature source is provided, and the temperature regulating plate is provided between adjacent battery packs. The temperature source is connected to each temperature regulating plate through a pipeline, and the temperature regulating valve is provided on the pipeline between the temperature source and the temperature regulating plate, and is used to connect or disconnect the temperature regulating plate and the temperature source.

[0078] More specifically, Figure 2 As shown, in this embodiment, the temperature regulating valve can be specifically a three-way valve, which is arranged between every two temperature regulating plates and the temperature source, and is used to connect the two temperature regulating plates to the temperature source respectively, or to connect the two temperature regulating plates to the temperature source at the same time. It can be understood that every two temperature regulating plates can correspond to one temperature regulating valve, or every two adjacent temperature regulating plates can correspond to one temperature regulating valve, which is not limited in this embodiment.

[0079] like Figure 3 As shown, in actual applications, the temperature regulating valve can also be specifically a two-way valve, which is arranged between each temperature regulating plate and the temperature source, and is used to connect or disconnect the corresponding temperature regulating plate with the temperature source. The type of temperature regulating valve is not limited in this embodiment, as long as the battery pack can pass through the thermal management system of this embodiment to improve the temperature consistency of each battery pack in the battery pack.

[0080] More specifically, in this embodiment, the temperature sensor includes a first sensor and / or a second sensor, wherein the first sensor is provided on each battery pack and is used to obtain first temperature information of the corresponding battery pack, and specifically, the first temperature information is used to indicate the temperature value of the corresponding battery pack. It is understandable that in this embodiment, the position and number of the first sensor on each battery pack are not limited, and when there are two or more first sensors, the temperature value of the corresponding battery pack indicated by the first temperature information is specifically the average temperature output by each first sensor.

[0081] The second sensor can be set on each temperature regulating plate to obtain the second temperature information of the corresponding temperature regulating plate. Specifically, the second temperature information is used to indicate the inlet and outlet temperature difference of the corresponding temperature regulating plate or the temperature corresponding to the temperature regulating plate. It can be understood that the position and number of the second sensor are not limited in this embodiment. When the second temperature information is used to indicate the inlet and outlet temperature difference of the corresponding temperature regulating plate, the second sensor can be set at the connection between the temperature regulating plate and the water inlet pipeline and the water outlet pipeline. When the second temperature information is used to indicate the temperature corresponding to the temperature regulating plate, the second sensor can be set at any position of the temperature regulating plate.

[0082] In this embodiment, if Figure 2 and Figure 3 As shown, at least two battery packs of the battery pack are stacked. It is understandable that when the battery pack includes two battery packs, a temperature regulating plate is provided, located between the two battery packs, and connected to the temperature source through a two-way valve. When the battery pack includes more than two battery packs, at least one temperature regulating plate can be provided. The temperature regulating valve can be a three-way valve or a two-way valve based on demand. In this embodiment, the type of temperature regulating valve at this time is not limited, as long as the temperature regulating plate is located between adjacent battery packs and connected to the temperature source through the temperature regulating valve.

[0083] In this embodiment, if Figure 2 and Figure 3 As shown, the temperature control unit is connected to each first sensor and / or each second sensor to obtain the first temperature information and / or the second temperature information. The temperature control unit is also connected to each temperature control valve to generate a temperature adjustment instruction for controlling the corresponding temperature control valve according to the first temperature information and / or the second temperature information. Accordingly, the temperature control valve obtains the temperature adjustment instruction and performs an opening adjustment operation in response to the temperature adjustment instruction, so that the corresponding temperature adjustment plate is connected or disconnected from the temperature source.

[0084] Specifically, in this embodiment, the temperature control unit is any electronic device, such as a vehicle controller or a user terminal, as long as it has computing power and can interact with a temperature sensor and a temperature control valve. This is not limited in this embodiment.

[0085] More specifically, in this embodiment, when the temperature control unit generates a temperature adjustment instruction for the corresponding temperature control valve based on the first temperature information, the temperature control unit is configured to generate a temperature adjustment instruction for instructing the temperature control valve to connect the corresponding temperature adjustment plate with the temperature source when the temperature indicated by the first temperature information satisfies a first preset range.

[0086] The first preset range includes [A, +∞), (-∞, B], and A is a value greater than B. Correspondingly, when the temperature indicated by the first temperature information satisfies [A, +∞), it indicates that the corresponding battery pack currently needs to be cooled; when the temperature indicated by the first temperature information satisfies (-∞, B], it indicates that the corresponding battery pack currently needs to be heated.

[0087] In practical applications, the temperature control unit can be further configured to generate a temperature adjustment instruction for instructing the temperature control valve to connect the corresponding temperature adjustment plate to the temperature source when the temperature indicated by the first temperature information satisfies the second preset range, and to make the flow rate from the temperature source to the corresponding temperature adjustment plate greater than the flow rate in the previous case, which is the case that satisfies the first preset range but does not satisfy the second preset range. The second preset range includes [C, +∞) or (-∞, D], C is a value greater than A, and D is a value smaller than B.

[0088] In practical applications, the temperature control unit may also be configured to generate a temperature adjustment instruction through the second temperature information, or to generate a temperature adjustment instruction for controlling a corresponding temperature adjustment valve in combination with the first temperature information and the second temperature information.

[0089] Among them, when the temperature control unit is configured to generate a temperature adjustment instruction through the second temperature information, the second temperature information is specifically used to indicate the temperature of the corresponding temperature adjustment plate. At this time, the specific implementation method can refer to the above-mentioned process of generating a temperature adjustment instruction through the first temperature information, and will not be repeated here.

[0090] The temperature control unit is configured to combine the first temperature information and the second temperature information to generate a temperature adjustment instruction for controlling the corresponding temperature regulating valve. If the second temperature information is used to indicate the average temperature of the inlet and outlet of the corresponding temperature regulating plate, then when the first temperature information indicates that the temperature of the corresponding battery pack meets the first preset range, and the temperature difference between the average temperature indicated by the second temperature information and the temperature indicated by the first temperature information is greater than the preset value, a first instruction for controlling the corresponding temperature regulating valve is generated, and the first instruction is used to indicate that the flow rate from the temperature source to the corresponding temperature regulating plate is greater than the preset flow rate. When the first temperature information indicates that the temperature of the corresponding battery pack meets the first preset range, but the temperature difference between the average temperature indicated by the second temperature information and the temperature indicated by the first temperature information is not greater than the preset value, a second instruction for controlling the corresponding temperature regulating valve is generated, and the second instruction is used to indicate that the flow rate from the temperature source to the corresponding temperature regulating plate is not greater than the preset flow rate.

[0091] Through the above settings, when the temperature of the corresponding battery pack rises too quickly, the corresponding battery pack can be thermally managed in time by increasing the flow rate, thereby effectively protecting the battery pack.

[0092] In practical applications, the temperature control unit can also be configured to generate corresponding temperature adjustment instructions in combination with the first temperature information and the second temperature information in other ways, which is not limited in this embodiment. The present application embodiment provides several possible implementation methods, which can be specifically referred to in the following embodiments, and will not be described in detail here.

[0093] In the system provided in this embodiment, the temperature control unit cooperates with the temperature execution unit to confirm the battery pack with heat exchange demand through the first temperature information and / or the second temperature information, and when there is a heat exchange demand in any battery pack, the corresponding temperature regulating valve is controlled to connect the corresponding temperature regulating plate with the temperature source, so as to receive the medium in time and perform heat exchange in time to realize thermal management.

[0094] Through the system of this embodiment, independent control of different temperature regulating plates can be achieved, thereby achieving independent thermal management of different battery packs, which is beneficial to achieving temperature consistency of each battery pack, and further helps to increase the service life of the battery pack and make the battery pack safer and more reliable.

[0095] In a possible implementation, the temperature execution unit includes at least one regulating plate group, the regulating plate group includes two temperature regulating plates, and each regulating plate group corresponds to a temperature regulating valve and a three-layer battery group.

[0096] Among them, the temperature regulating valve is specifically a three-way valve, the three-layer battery pack includes a first battery group, a second battery group and a third battery group that are stacked, the first regulating plate of the regulating plate group is located between the first battery group and the second battery group, and the second regulating plate of the regulating plate group is located between the second battery group and the third battery group.

[0097] On this basis, as a design, Figure 4 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 3 ,like Figure 4 As shown, every three battery packs form a group to form a three-layer battery pack, and the temperature regulating plates are specifically arranged between adjacent battery packs in each three-layer battery pack, that is, each three-layer battery pack corresponds to two temperature regulating plates and one temperature regulating valve.

[0098] For Figure 4 The thermal management system shown, the embodiment of the present application further describes in detail the temperature execution unit and the temperature control unit based on the previous embodiment.

[0099] Specifically, in this embodiment, for any three-layer battery pack, when the first temperature information indicates that the temperature of only one battery pack meets the first preset range, the temperature control unit is specifically configured to:

[0100] If the first temperature information indicates that the temperature of the first battery pack meets the first preset range, and the temperatures of the second battery pack and the third battery pack do not meet the first preset range, a first temperature adjustment instruction for controlling the target temperature adjustment valve is generated and sent to the target temperature adjustment valve.

[0101] If the first temperature information indicates that the temperature of the third battery pack meets the first preset range, and the temperatures of the first battery pack and the second battery pack do not meet the first preset range, a second temperature adjustment instruction for controlling the target temperature adjustment valve is generated and sent to the target temperature adjustment valve.

[0102] If the first temperature information indicates that the temperature of the second battery pack meets the first preset range, and the temperatures of the first battery pack and the third battery pack do not meet the first preset range, a third temperature adjustment instruction for controlling the target temperature adjustment valve is generated and sent to the target temperature adjustment valve.

[0103] It can be understood that the target temperature regulating valve is the temperature regulating valve corresponding to the regulating plate group corresponding to the current three-layer battery group. Accordingly, the target temperature regulating valve is specifically used for:

[0104] When a first temperature adjustment instruction is obtained, a first opening adjustment operation is performed in response to the first temperature adjustment instruction to adjust to the first opening; when a second temperature adjustment instruction is obtained, a second opening adjustment operation is performed in response to the second temperature adjustment instruction to adjust to the second opening; when a third temperature adjustment instruction is obtained, a third opening adjustment operation is performed in response to the third temperature adjustment instruction to adjust to the third opening, and the third opening is the average of the first opening and the second opening.

[0105] In this embodiment, when the target temperature regulating valve is at the first opening, the temperature source is connected to the first regulating plate and is not connected to the second regulating plate. When the target temperature regulating valve is at the second opening, the temperature source is not connected to the first regulating plate and is connected to the second regulating plate. When the target temperature regulating valve is at the third opening, the temperature source is connected to both the first regulating plate and the second regulating plate, and at this time, the flow rate from the temperature source to the first regulating plate is consistent with the flow rate from the temperature source to the second regulating plate.

[0106] In this embodiment, the first preset range includes [A, +∞), (-∞, B], which respectively correspond to the temperature range that needs to be cooled and the temperature range that needs to be heated. It can be understood that A is a value greater than B.

[0107] In this embodiment, for any three-layer battery pack, when the temperature of only one battery pack meets the first preset range, any one of the first temperature adjustment instruction, the second temperature adjustment instruction, and the third adjustment instruction is generated according to its location. It can be understood that the location of the battery pack is specifically its location in the current three-layer battery pack, which can be top, middle, or bottom, respectively used to indicate that it is the first battery pack, the second battery pack, or the third battery pack.

[0108] Through the above-mentioned arrangement, when only any one of the first battery group, the second battery group, and the third battery group has a heat exchange demand, the target temperature regulating valve is maintained at a corresponding opening among the first opening, the second opening, and the third opening, and the corresponding temperature regulating plate is separately connected to the temperature source, thereby realizing separate thermal management of any battery group, which is beneficial to maintaining the temperature consistency of each battery group.

[0109] Among them, when only the second battery group has a heat exchange demand, the target regulating valve is maintained at the third opening, and the third opening is made to be the average of the first opening and the second opening. Even if the two temperature regulating plates simultaneously realize thermal management of the second battery group, on the one hand, it is beneficial to quickly realize thermal management of the second battery group, and on the other hand, it is beneficial to realize uniform temperature field of the three-layer battery pack.

[0110] In this embodiment, for any three-layer battery pack, when the first temperature information indicates that the temperature of at least two battery packs in the current three-layer battery pack meets the first preset range, the temperature adjustment instruction of the target temperature regulating valve is further determined in combination with the second temperature information. The second temperature information is used to indicate the inlet and outlet temperature difference of the corresponding temperature regulating plate, which is obtained by two second sensors respectively arranged on the corresponding temperature regulating plate and the water inlet pipeline and the water outlet pipeline.

[0111] Specifically, the temperature control unit is used for:

[0112] If the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is greater than the inlet and outlet temperature difference of the second regulating plate, a fourth temperature regulating instruction for controlling the target temperature regulating valve is generated and sent to the target temperature regulating valve.

[0113] If the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is smaller than the inlet and outlet temperature difference of the second regulating plate, a fifth temperature regulating instruction for controlling the target temperature regulating valve is generated.

[0114] It can be understood that the target temperature regulating valve is the temperature regulating valve corresponding to the current three-layer battery pack. Accordingly, the target temperature regulating valve is specifically used for:

[0115] When a fourth temperature adjustment command is received, a fourth opening adjustment operation is performed in response to the fourth temperature adjustment command to adjust to a fourth opening degree. When a fifth temperature adjustment command is received, a fifth opening adjustment operation is performed in response to the fifth temperature adjustment command to adjust to a fifth opening degree.

[0116] Specifically, in this embodiment, the fourth opening degree is expressed as γ*: γ*=γ-ε[(γ2-γ1) / 2], and the fifth opening degree is expressed as γ*: γ*=γ+ε[(γ2-γ1) / 2].

[0117] Among them, when the opening of the target temperature control valve is maintained at γ, the temperature source is connected to the first adjustment plate and the second adjustment plate, when the opening of the target temperature control valve is maintained at γ1, the temperature source is connected to the first adjustment plate and is not connected to the second adjustment plate, when the opening of the target temperature control valve is maintained at γ2, the temperature source is not connected to the first adjustment plate and is connected to the second adjustment plate; ε is the three-way valve adjustment parameter, ε∈[0,1].

[0118] It can be understood that when the inlet and outlet temperature difference of the first regulating plate is greater than the inlet and outlet temperature difference of the second regulating plate, it means that the temperature of the first regulating plate changes faster, that is, the heat exchange demand of the first battery group is greater than the heat exchange demand of the third battery group. Therefore, in this embodiment, the temperature control unit generates a fourth temperature adjustment instruction at this time to keep the target temperature regulating valve at the fourth opening, that is, the flow rate from the temperature source to the first regulating plate is greater than the flow rate to the second regulating plate. On the contrary, the fifth temperature adjustment instruction is generated to keep the target temperature regulating valve at the fifth opening, that is, the flow rate from the temperature source to the second regulating plate is greater than the flow rate to the first regulating plate.

[0119] Through the above settings, the temperature regulating plate with higher heat exchange requirements can obtain a larger flow rate, which is conducive to timely thermal management of battery packs with higher heat exchange requirements and timely maintaining temperature consistency of each battery pack.

[0120] It is understandable that if the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is equal to the inlet and outlet temperature difference of the second regulating plate, the opening of the target temperature regulating valve is maintained at the third opening, thereby ensuring temperature consistency among the battery packs.

[0121] Figure 4 The thermal management system shown divides each battery group of the battery pack into several three-layer battery groups, and each three-layer battery group corresponds to a target temperature regulating valve and two temperature regulating plates. The thermal management of the three-layer battery group can be achieved by controlling the target temperature regulating plates, so that the control logic of the temperature control unit is simple, which is conducive to timely thermal management of each battery group, thereby helping to ensure the safety of the battery pack.

[0122] As another design, Figure 5 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 4 ,like Figure 5 As shown, a temperature regulating plate is provided between each two adjacent battery packs. Each two adjacent temperature regulating plates correspond to a temperature regulating valve, that is, each two adjacent temperature regulating plates are connected to a temperature source through the same temperature regulating valve.

[0123] It can be understood that at this time, every two adjacent temperature regulating plates correspond to a three-layer battery group, and each three-layer battery group shares a battery group with any adjacent three-layer battery group adjacent to it, which is the first battery group or the third battery group of the current three-layer battery group.

[0124] At this time, for any three-layer battery pack, when the first battery pack or the third battery pack has a heat exchange demand, it is necessary to combine the state of the temperature control valve of the adjacent battery pack adjacent to the current three-layer battery pack to determine whether it is necessary to achieve thermal management of the first battery pack or the third battery pack by adjusting the target temperature control valve corresponding to the current three-layer battery pack.

[0125] Therefore, in this embodiment, the temperature control unit is also used to: obtain the opening information of the adjacent temperature control valve when the first temperature information indicates that only the first battery group or the third battery group meets the first preset range, and determine whether to generate a first temperature control instruction or a second temperature control instruction for controlling the target temperature control valve based on the opening information of the adjacent temperature control valve and the first temperature information.

[0126] Specifically, when the opening information indicates that the adjacent temperature control valve is at the target opening, and the first temperature information indicates that the first battery pack or the third battery pack meets the first preset range but does not meet the second preset range, it is determined not to generate the first temperature control instruction or the second temperature control instruction.

[0127] When the opening information indicates that the adjacent temperature adjustment valve is at the target opening, and the first temperature information indicates that the first battery pack or the third battery pack meets the second preset range, it is determined to generate the first temperature adjustment instruction or the second temperature adjustment instruction.

[0128] Among them, the minimum value of the second preset range is greater than the minimum value of the first preset range, and when the adjacent temperature regulating valve is at the target opening, the other temperature regulating plates adjacent to the first battery pack or the third battery pack are connected to the temperature source.

[0129] In this embodiment, the temperature control unit determines that only the first battery group has a heat exchange demand when the first temperature information indicates that the temperature of the first battery group satisfies the first preset range, and the second battery group and the third battery group do not satisfy the first preset range. When the first temperature information indicates that the temperature of the third battery group satisfies the first preset range, and the first battery group and the second battery group do not satisfy the first preset range, it determines that only the third battery group has a heat exchange demand.

[0130] For any of the above situations, the temperature control unit first obtains the opening information of the adjacent temperature regulating valve corresponding to the adjacent battery pack to determine whether other temperature regulating plates adjacent to the first battery pack or the third battery pack are connected to the temperature source through the adjacent temperature regulating valve. Further, when the above opening information indicates that the adjacent temperature regulating valve is at the target opening, the temperature control unit determines whether to generate the first temperature regulating instruction or the second temperature regulating instruction according to whether the temperature of the first battery pack or the third battery pack indicated by the first temperature information meets the second preset range, that is, according to the current temperature condition of the first battery pack or the second battery pack, determines whether it is necessary to adjust the target temperature regulating valve to make the first regulating plate or the second regulating plate connected to the temperature source, so as to achieve further thermal management through the first regulating plate or the second regulating plate.

[0131] It can be understood that in this embodiment, based on Figure 5 The thermal management system shown in the figure, for each three-layer battery pack, when the first temperature information indicates that only the temperature of the second battery pack meets the first preset range, or when the first temperature information indicates that the temperatures of at least two battery packs meet the first preset range, the temperature control unit generates a temperature adjustment instruction for controlling the target temperature adjustment valve. For details, please refer to the method based on the aforementioned embodiment Figure 4 The limitations of the temperature control unit in the thermal management system shown will not be repeated here.

[0132] In the system of the present embodiment, a temperature regulating plate is provided between every two adjacent battery groups, and for each three-layer battery group, when only the first battery group or the third battery group has a heat exchange demand, it is possible to determine whether to generate a first temperature regulating instruction or a second temperature regulating instruction in combination with the opening information of the adjacent temperature regulating valve and the first temperature information, thereby achieving precise management of each temperature regulating plate. Through the system of the present embodiment, thermal management of a battery pack containing battery groups that are not a multiple of 3 can be achieved, so that the temperatures of each battery group in a battery pack containing battery groups that are not a multiple of 3 can be made consistent.

[0133] In another possible implementation, each of two adjacent temperature regulating valves in the temperature execution unit is provided with a temperature regulating valve, and the temperature regulating valve is a three-way valve. Among them, in each temperature regulating plate, there are two adjacent temperature regulating plates, and the temperature regulating plates corresponding to the two temperature regulating valves are the first temperature regulating plates; there are two adjacent temperature regulating plates, and the temperature regulating plate corresponding to one temperature regulating valve is the second temperature regulating plate.

[0134] As a design, Figure 6 A schematic diagram of a thermal management system provided in an embodiment of the present application Figure 5 ,like Figure 6 As shown, the temperature regulating plate is arranged between each two adjacent battery packs. Figure 6 The thermal management system shown in the figure further describes the temperature control unit in detail.

[0135] It is understandable that for each battery pack, if it is the battery pack at the edge, it is only adjacent to the second temperature regulating plate, and thermal management can only be achieved through the temperature regulating valve corresponding to the second temperature regulating plate. Otherwise, the corresponding battery pack is adjacent to the first temperature regulating plate and the second temperature regulating plate, or is only adjacent to the first temperature regulating plate. In this case, the corresponding battery pack can achieve thermal management through the corresponding two temperature regulating valves.

[0136] Therefore, in this embodiment, for a battery pack adjacent to any first temperature regulating plate, when the first temperature information indicates that the temperature of the battery pack meets the first preset range, a temperature regulating instruction for controlling the two temperature regulating valves corresponding to the first temperature regulating plate is generated according to the priority of the two temperature regulating valves, wherein the priority is based on the opening information of the two temperature regulating valves.

[0137] Specifically, in this embodiment, for a battery pack adjacent to any first temperature regulating plate, when the first temperature information indicates that the temperature of the battery pack meets the first preset range, the temperature control unit first determines the priority of the two temperature regulating valves corresponding to the first temperature regulating plate according to the opening information of the two temperature regulating valves corresponding to the first temperature regulating plate, and then generates a temperature regulating instruction for controlling the two temperature regulating valves according to the priorities of the two temperature regulating valves.

[0138] Among them, when the temperature control unit determines the priority of the two temperature control valves corresponding to the first temperature control plate, it is specifically used to: for any one of the two temperature control valves corresponding to the first temperature control plate, determine the target angle when the temperature control valve is adjusted to the required opening according to the opening information; if the target openings corresponding to the two temperature control valves are the same, then it is determined that the priorities of the two temperature control valves are the same; otherwise, it is determined that the temperature control valve corresponding to the smaller target opening has a higher priority.

[0139] Furthermore, when the priorities of the two temperature regulating valves are consistent, the temperature control unit generates a temperature regulating instruction for controlling any one temperature regulating valve to adjust to the target opening and keeping the other temperature regulating valve at the current opening. When the priorities of the two temperature regulating valves are inconsistent, a temperature regulating instruction is generated for controlling the temperature regulating valve with a higher priority to adjust to the required opening and keeping the temperature regulating valve with a lower priority at the current opening.

[0140] It is understandable that, in practical applications, the temperature control unit may also combine the priorities of the two temperature regulating valves and the second temperature information of the first temperature regulating plate to generate a temperature regulating instruction for controlling the two temperature regulating valves.

[0141] Specifically, when the second temperature information of the first temperature regulating plate indicates that the inlet and outlet temperature difference of the first temperature regulating plate is less than a preset value, the temperature control unit generates a temperature regulating instruction for controlling one of the two temperature regulating valves to adjust to the required opening according to the priority of the two temperature regulating valves. For details, please refer to the above content and will not be repeated here.

[0142] When the second temperature information of the first temperature regulating plate indicates that the inlet and outlet temperature difference of the first temperature plate is not less than a preset value, the temperature control unit generates a temperature regulating instruction for successively controlling the two temperature regulating valves to adjust to the required opening according to the priority of the two temperature regulating valves.

[0143] It is understandable that the required opening in the above process is used to connect the first temperature regulating plate to the temperature source. In addition, in practical applications, for the two temperature regulating valves corresponding to each first temperature regulating plate, the temperature control unit can also determine the priority of the temperature regulating valve based on the service life of the temperature regulating valve, for example, the temperature regulating valve with a shorter service life can be given a higher priority to ensure the overall life of the thermal management system. In this embodiment, the method of determining the priority of the two temperature regulating valves corresponding to each first temperature regulating plate is not limited.

[0144] In this embodiment, for a battery pack adjacent to only any second temperature regulating plate, when the first temperature information indicates that the temperature of the battery pack meets the first preset range, a temperature regulating instruction for controlling the temperature regulating valve corresponding to the second temperature regulating plate is generated.

[0145] It is understandable that the temperature control unit can also generate a corresponding temperature adjustment instruction for controlling the temperature adjustment valve corresponding to the second temperature adjustment plate when the first temperature information indicates that the temperature of the battery pack meets the second preset range. Among them, for the definition of the first preset range and the second range, as well as the definition of the generated temperature adjustment instruction, please refer to the contents of the aforementioned embodiment, which will not be repeated here. In the system of this embodiment, the temperature adjustment plate is arranged between every two adjacent battery packs, and every two adjacent temperature adjustment plates can be connected to the temperature source through a temperature adjustment valve, so that the thermal management system of this embodiment can be applied to battery packs containing any number of battery packs including three or more layers, thereby improving the applicability of the thermal management system.

[0146] In addition, for the above-mentioned battery pack, in response to the heat exchange requirements of any battery group, the temperature control unit can realize precise thermal management on the one hand, and on the other hand, for the battery pack that can realize thermal management through two temperature control valves, thermal management is realized by combining the priority of the two temperature control valves. Under the premise of accurate management, it is beneficial to ensure the consistency of the service life of each temperature control valve, thereby effectively ensuring the overall service life of the thermal management system.

[0147] The present application also provides a thermal management method, which is applied to the thermal management system in the above embodiment. Specifically, Figure 7 A schematic diagram of a thermal management method provided in an embodiment of the present application is shown in FIG. Figure 7 As shown, the method of this embodiment includes:

[0148] S701, obtaining first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through a temperature sensor.

[0149] S702, based on the first temperature information and / or the second temperature information, generate a temperature adjustment instruction for controlling the corresponding temperature control valve, so that the temperature control valve responds to the temperature adjustment instruction to perform an opening adjustment operation; the temperature control valve is used to connect the temperature adjustment plate corresponding to the corresponding battery pack and the temperature source.

[0150] It is understandable that the method of this embodiment can be specifically executed by a temperature control unit in a thermal management system. For the definition of features such as the temperature sensor, the first temperature information, the second temperature information, the temperature regulating valve, and the temperature regulating instruction, please refer to the contents of the aforementioned embodiment, and will not be repeated here.

[0151] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0152] It should be further noted that, although the various steps in the flowchart are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowchart may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0153] The above embodiments introduce a thermal management method from the perspective of the method flow, and the following embodiments introduce a thermal management device from the perspective of a virtual module or a virtual unit. For details, please refer to the following embodiments.

[0154] Figure 8 A schematic diagram of the structure of a thermal management device provided in an embodiment of the present application is shown in FIG. Figure 8 As shown, in this embodiment, the thermal management device may include:

[0155] An acquisition module 81, configured to acquire first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through a temperature sensor;

[0156] The management module 82 is used to generate a temperature adjustment instruction for controlling the corresponding temperature control valve according to the first temperature information and / or the second temperature information, so that the temperature control valve responds to the temperature adjustment instruction to perform an opening adjustment operation; the temperature control valve is used to connect the temperature adjustment plate corresponding to the corresponding battery pack and the temperature source.

[0157] It should be understood that the above-mentioned device embodiments are only illustrative, and the device of the present application can also be implemented in other ways. For example, the division of units / modules in the above-mentioned embodiments is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units, modules or components can be combined, or can be integrated into another system, or some features can be ignored or not executed.

[0158] An electronic device is provided in an embodiment of the present application. Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown in FIG. Fig. 9 As shown, Fig. 9 The electronic device shown includes: a processor 91 and a memory 92. The processor 91 and the memory 92 are connected, such as through a bus 93. Optionally, the electronic device may further include a transceiver 94. It should be noted that in actual applications, the transceiver 94 is not limited to one, and the structure of the electronic device does not constitute a limitation on the embodiments of the present application.

[0159] The processor 91 may be a central processing unit (CPU), a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor 91 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0160] The bus 93 may include a path to transmit information between the above components. The bus 93 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus 93 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0161] The memory 92 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage devices, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0162] The memory 92 is used to store the application code for executing the solution of the present application, and the execution is controlled by the processor 91. The processor 91 is used to execute the application code stored in the memory 92 to implement the contents shown in the above method embodiment.

[0163] The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used to implement the methods in the above-mentioned embodiments.

[0164] A computer program product is also provided in an embodiment of the present application, including a computer program. When the computer program is executed by a processor, the technical solution of the above-mentioned method embodiment is implemented. The implementation principle and technical effect are similar and will not be repeated here.

[0165] A battery pack is also provided in an embodiment of the present application. The battery pack includes at least two battery groups and also includes the thermal management system in the aforementioned embodiment.

[0166] In the above embodiments, the description of each embodiment has its own emphasis. For the part not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0167] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0168] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A thermal management system, characterized in that: The system comprises: a temperature execution unit and a temperature control unit, wherein the temperature execution unit is arranged inside a battery pack, and the battery pack comprises at least two battery packs; The temperature execution unit includes a temperature source, a temperature regulating plate arranged between adjacent battery packs, a temperature sensor for obtaining first temperature information of each battery pack and / or second temperature information of each temperature regulating plate, and a temperature regulating valve for connecting the temperature source and the temperature regulating plate; The temperature control unit is connected to the temperature sensor and the temperature regulating valve, and is used to obtain the first temperature information and / or the second temperature information through the temperature sensor, and is also used to generate a temperature regulating instruction for controlling the corresponding temperature regulating valve based on the first temperature information and / or the second temperature information, so that the temperature regulating valve responds to the temperature regulating instruction to perform an opening adjustment operation.

2. The system according to claim 1, characterized in that Determine that every two temperature regulating plates form an regulating plate group, and each regulating plate group corresponds to a temperature regulating valve and a three-layer battery group; wherein the temperature regulating valve is a three-way valve, and the three-layer battery group includes a first battery group, a second battery group and a third battery group arranged in sequence, and the first regulating plate of the regulating plate group is located between the first battery group and the second battery group, and the second regulating plate of the regulating plate group is located between the second battery group and the third battery group.

3. The system according to claim 2, characterized in that The temperature control unit is specifically used for: For any three-layer battery pack, when the first temperature information indicates that the temperature of the first battery pack meets the first preset range, and the temperatures of the second battery pack and the third battery pack do not meet the first preset range, a first temperature adjustment instruction for controlling a target temperature adjustment valve is generated and sent to the target temperature adjustment valve; the target temperature adjustment valve is the temperature adjustment valve corresponding to the three-layer battery pack; The target temperature regulating valve is specifically used to: respond to the first temperature regulating instruction, adjust to a first opening, so that the temperature source is connected to the first regulating plate and is disconnected from the second regulating plate.

4. The system according to claim 2, characterized in that The temperature control unit is specifically used for: For any three-layer battery pack, when the first temperature information indicates that the temperature of the third battery pack meets the first preset range, and the temperatures of the first battery pack and the second battery pack do not meet the first preset range, a second temperature adjustment instruction for controlling a target temperature adjustment valve is generated and sent to the target temperature adjustment valve; the target temperature adjustment valve is the temperature adjustment valve corresponding to the three-layer battery pack; The target temperature regulating valve is specifically used to: respond to the second temperature regulating instruction, adjust to a second opening, so that the temperature source is disconnected from the first regulating plate and is connected to the second regulating plate.

5. The system according to any one of claims 2 to 4, characterized in that: The temperature control unit is specifically used for: For any three-layer battery pack, when the first temperature information indicates that the temperature of the second battery pack meets the first preset range, and the temperatures of the first battery pack and the third battery pack do not meet the first preset range, a third temperature adjustment instruction for controlling the target temperature adjustment valve is generated and sent to the target temperature adjustment valve; The target temperature regulating valve is specifically used to: respond to the third temperature adjustment instruction and adjust to a third opening, wherein the third opening is an average of the first opening and the second opening; when the target temperature regulating valve is at the first opening, the temperature source is connected to the first adjustment plate and is not connected to the second adjustment plate; when the target temperature regulating valve is at the second opening, the temperature source is not connected to the first adjustment plate and is connected to the second adjustment plate.

6. The system according to any one of claims 2 to 4, characterized in that: The temperature control unit is specifically used for: For any three-layer battery pack, when the first temperature information indicates that the temperatures of at least two battery packs in the three-layer battery pack meet the first preset range, if the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is greater than the inlet and outlet temperature difference of the second regulating plate, a fourth temperature regulating instruction for controlling the target temperature regulating valve is generated and sent to the target temperature regulating valve; The target temperature regulating valve is specifically used for: responding to the fourth temperature regulation and adjusting to a fourth opening, wherein the fourth opening is expressed as γ*: γ*=γ-ε[(γ2-γ1) / 2], wherein when the opening of the target temperature regulating valve is maintained at γ, the temperature source is connected to the first regulating plate and the second regulating plate, when the opening of the target temperature regulating valve is maintained at γ1, the temperature source is connected to the first regulating plate and is not connected to the second regulating plate, and when the opening of the target temperature regulating valve is maintained at γ2, the temperature source is not connected to the first regulating plate and is connected to the second regulating plate; ε is the three-way valve adjustment parameter, ε∈[0,1].

7. The system according to claim 6, characterized in that The temperature control unit is specifically used for: For any three-layer battery pack, when the first temperature information indicates that the temperatures of at least two battery packs in the three-layer battery pack meet the first preset range, if the second temperature information indicates that the inlet and outlet temperature difference of the first regulating plate is less than the inlet and outlet temperature difference of the second regulating plate, a fifth temperature regulating instruction for controlling the target temperature regulating valve is generated; The target temperature regulating valve is specifically used to respond to the fifth temperature regulating instruction and adjust to a fifth opening degree, wherein the fifth opening degree is expressed as γ*: γ*=γ+ε[(γ2-γ1) / 2].

8. The system according to any one of claims 2 to 4, characterized in that: When the temperature regulating plate is provided between each two adjacent battery packs, the temperature control unit is further used for: For any three-layer battery group, when the first temperature information indicates that only the temperature of the first battery group or the third battery group meets the first preset range, the opening information of the adjacent temperature regulating valve is obtained; the adjacent temperature regulating valve is the temperature regulating valve corresponding to the adjacent three-layer battery group of the three-layer battery group, the first battery group is the third battery group of the adjacent three-layer battery group, or the third battery group is the first battery group of the adjacent three-layer battery group; determining whether to generate a first temperature adjustment instruction or a second temperature adjustment instruction for controlling a target temperature adjustment valve according to the first temperature information and the opening information; The first temperature adjustment instruction is used to adjust the target temperature adjustment valve to a first opening, and the second temperature adjustment instruction is used to adjust the target temperature adjustment valve to a second opening. The target temperature adjustment valve is the temperature adjustment valve corresponding to the three-layer battery pack.

9. The system according to claim 8, characterized in that The temperature control unit is specifically used for: When the opening information indicates that the adjacent temperature control valve is at the target opening, and the first temperature information indicates that the temperature of the first battery group or the third battery group satisfies the second preset range, it is determined to generate the first temperature control instruction or the second temperature control instruction; when the minimum value of the second preset range is greater than the minimum value of the first preset range, and the adjacent temperature control valve is at the target opening, the other temperature control plates adjacent to the first battery group or the third battery group are connected to the temperature source.

10. The system according to claim 1, characterized in that A temperature regulating valve is arranged between every two adjacent temperature regulating plates, and the temperature regulating valve is a three-way valve; wherein, among the temperature regulating plates, the temperature regulating plate corresponding to the two temperature regulating valves is the first temperature regulating plate; and the temperature regulating plate corresponding to one temperature regulating valve is the second temperature regulating plate.

11. The system according to claim 10, characterized in that The temperature control unit is specifically used for: For a battery pack adjacent to any of the first temperature regulating plates, when the first temperature information indicates that the temperature of the battery pack satisfies a first preset range, a temperature regulating instruction for controlling the two temperature regulating valves corresponding to the first temperature regulating plate is generated according to the priority of the two temperature regulating valves; the priority is determined based on the opening information of the two temperature regulating valves.

12. The system according to claim 10, characterized in that The temperature control unit is specifically used for: For a battery pack adjacent only to any second temperature regulating plate, when the first temperature information indicates that the temperature of the battery pack meets a first preset range, a temperature regulating instruction for controlling a temperature regulating valve corresponding to the second temperature regulating plate is generated.

13. A thermal management method, characterized in that: Applicable to a thermal management system according to any one of claims 1 to 12; the method comprising: Acquiring first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through a temperature sensor; Based on the first temperature information and / or the second temperature information, a temperature adjustment instruction for controlling the corresponding temperature control valve is generated, so that the temperature control valve responds to the temperature adjustment instruction to perform an opening adjustment operation; the temperature control valve is used to connect the temperature adjustment plate corresponding to the corresponding battery pack and the temperature source.

14. A thermal management device, characterized in that: The device comprises: an acquisition module, used for acquiring first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through a temperature sensor; A management module is used to generate a temperature adjustment instruction for controlling a corresponding temperature control valve based on the first temperature information and / or the second temperature information, so that the temperature control valve responds to the temperature adjustment instruction to perform an opening adjustment operation; the temperature control valve is used to connect the temperature adjustment plate corresponding to the corresponding battery pack and the temperature source.

15. An electronic device, characterized in that: The electronic device comprises a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method of claim 13 .

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to claim 13 when executed by a processor.

17. A computer program product, characterized in that The method comprises a computer program which, when executed by a processor, implements the method as claimed in claim 13.

18. A battery pack, characterized in that: The battery pack includes at least two battery groups and also includes a thermal management system as described in any one of claims 1-12.

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