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

Abstract

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

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage batteries, in particular to a battery pack and a thermal management system, method, device, equipment and storage medium. BACKGROUND

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

[0003] Currently, the thermal management of the battery pack is realized by a thermal management system. The thermal management system generally includes a cooling / heating medium, a heat exchanger, a temperature sensor, a control unit, and a pipeline and a valve for conveying the cooling or heating medium. 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, and the control unit controls the corresponding valve according to the temperature information to realize cooling or heating.

[0004] In the above process, there is a defect that can easily lead to uneven temperature of each battery pack in the battery pack, thereby adversely affecting the operation safety of the battery pack. SUMMARY

[0005] The present application provides a battery pack and a thermal management system, method, device, equipment and storage medium, so as to realize temperature consistency of each battery pack in the battery pack, thereby facilitating the operation safety of the battery pack.

[0006] In a first aspect, the present application provides a thermal management system, which comprises: a temperature execution unit and a temperature control unit, the temperature execution unit is arranged in the battery pack, and the battery pack comprises at least two battery packs;

[0007] The temperature execution unit comprises a temperature source, a temperature adjusting 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 adjusting plate, and a temperature adjusting valve for connecting the temperature source and the temperature adjusting plate;

[0008] The temperature control unit is connected with the temperature sensor and the temperature adjusting valve, and is used for obtaining the first temperature information and / or the second temperature information through the temperature sensor, and generating a temperature adjusting instruction 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 performs opening degree adjusting operation in response to the temperature adjusting instruction.

[0009] In a possible implementation, two temperature adjustment plates are determined as one adjustment plate group, and each adjustment plate group corresponds to one temperature adjustment valve and three-layer battery group; the temperature adjustment valve is a three-way valve, the three-layer battery group comprises a first battery group, a second battery group and a third battery group arranged in sequence, and the first adjustment plate of the adjustment plate group is located between the first battery group and the second battery group, and the second adjustment plate of the adjustment 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 configured to:

[0011] For any three-layer battery group, when the first temperature information indicates that the temperature of the first battery group meets the first preset range and the temperatures of the second battery group and the third battery group 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 group.

[0012] The target temperature adjustment valve is specifically configured to: in response to the first temperature adjustment instruction, adjust to a first opening degree, so that the temperature source is communicated with the first adjustment plate and not communicated with the second adjustment plate.

[0013] In a possible implementation, the temperature control unit is specifically configured to:

[0014] For any three-layer battery group, when the first temperature information indicates that the temperature of the third battery group meets the first preset range and the temperatures of the first battery group and the second battery group 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 group.

[0015] The target temperature adjustment valve is specifically configured to: in response to the second temperature adjustment instruction, adjust to a second opening degree, so that the temperature source is not communicated with the first adjustment plate and communicated with the second adjustment plate.

[0016] In a possible implementation, the temperature control unit is specifically configured to:

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

[0018] The target temperature adjusting valve is specifically configured to: in response to the third temperature adjusting instruction, adjust to a third opening degree, the third opening degree being a mean value of the first opening degree and the second opening degree; when the target temperature adjusting valve is at the first opening degree, the temperature source is communicated with the first adjusting plate and not communicated with the second adjusting plate; when the target temperature adjusting valve is at the second opening degree, the temperature source is not communicated with the first adjusting plate and communicated with the second adjusting plate.

[0019] In a possible implementation manner, the temperature control unit is specifically configured to:

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

[0021] The target temperature adjusting valve is specifically configured to: in response to the fourth temperature adjusting instruction, adjust to a fourth opening degree, the fourth opening degree being represented as γ*: γ*=γ-ε[(γ2-γ1) / 2], wherein when the opening degree of the target temperature adjusting valve is kept at γ, the temperature source is communicated with the first adjusting plate and the second adjusting plate, when the opening degree of the target temperature adjusting valve is kept at γ1, the temperature source is communicated with the first adjusting plate and not communicated with the second adjusting plate, and when the opening degree of the target temperature adjusting valve is kept at γ2, the temperature source is not communicated with the first adjusting plate and communicated with the second adjusting plate; ε is the three-way valve adjusting parameter, and ε∈[0, 1].

[0022] In a possible implementation manner, the temperature control unit is specifically configured to:

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

[0024] The target temperature adjusting valve is specifically configured to: in response to the fifth temperature adjusting instruction, adjust to a fifth opening degree, the fifth opening degree being represented as γ*: γ*=γ+ε[(γ2-γ1) / 2].

[0025] In a possible implementation manner, when the temperature adjusting plate is arranged between each adjacent two battery packs, the temperature control unit is further configured to:

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

[0027] According to the first temperature information and the opening degree information, it is determined whether to generate a first temperature regulating instruction or a second temperature regulating instruction for controlling a target temperature regulating valve; the first temperature regulating instruction is used to make the target temperature regulating valve adjust to a first opening degree, and the second temperature regulating instruction is used to make the target temperature regulating valve adjust to a second opening degree; the target temperature regulating valve is a temperature regulating valve corresponding to the three-layer battery pack.

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

[0029] When the opening degree information indicates that the adjacent temperature regulating valve is at a target opening degree, and the first temperature information indicates that the temperature of the first battery pack or the third battery pack meets a second preset range, it is determined to generate the first temperature regulating instruction or the second temperature regulating instruction; 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 degree, other temperature regulating plates adjacent to the first battery pack or the third battery pack are communicated with the temperature source.

[0030] In a possible implementation manner, one temperature regulating valve is arranged between each adjacent two temperature regulating plates, and the temperature regulating valve is a three-way valve; wherein, the temperature regulating plates include a first temperature regulating plate corresponding to two temperature regulating valves, and a second temperature regulating plate corresponding to one temperature regulating valve.

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

[0032] 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 a first preset range, according to the priority of two temperature regulating valves corresponding to the first temperature regulating plate, a temperature regulating instruction for controlling the two temperature regulating valves is generated; the priority is determined based on the opening degree information of the two temperature regulating valves and the second temperature information of the first temperature regulating plate.

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

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

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

[0036] obtaining, by a temperature sensor, first temperature information of each battery pack and / or second temperature information of each temperature adjusting plate;

[0037] generating, according to the first temperature information and / or the second temperature information, a temperature adjusting instruction for controlling a corresponding temperature adjusting valve, so that the temperature adjusting valve performs an opening degree adjusting operation in response to the temperature adjusting instruction; the temperature adjusting valve is used to connect a corresponding temperature adjusting plate of a corresponding battery pack and a temperature source.

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

[0039] an obtaining module, configured to obtain, by a temperature sensor, first temperature information of each battery pack and / or second temperature information of each temperature adjusting plate;

[0040] a management module, configured to generate, according to the first temperature information and / or the second temperature information, a temperature adjusting instruction for controlling a corresponding temperature adjusting valve, so that the temperature adjusting valve performs an opening degree adjusting operation in response to the temperature adjusting instruction; the temperature adjusting valve is used to connect a corresponding temperature adjusting plate of a corresponding battery pack and a temperature source.

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

[0042] the memory stores computer execution instructions;

[0043] the processor executes the computer execution instructions stored in the memory to realize the method of the second aspect.

[0044] In a fifth aspect, the present application provides a computer readable storage medium, the computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by a processor to realize the method of the second aspect.

[0045] In a sixth aspect, the present application provides a computer program product, comprising a computer program, and the computer program is executed by a processor to realize the method of the second aspect.

[0046] In a seventh aspect, the present application provides a battery pack, comprising at least two battery groups, and further comprising the heat management system according to any one of the first aspect.

[0047] The present application provides a battery pack and a heat management system, method, device, equipment and storage medium, wherein in the system of the present application, the temperature control unit obtains first temperature information and / or second temperature information through the temperature sensor, and generates temperature adjustment instructions for controlling the corresponding temperature adjusting valve through the first temperature information and / or the second temperature information, so that the temperature adjusting valve performs the opening degree adjustment operation in response to the temperature adjustment instructions, and realizes the heat management of the corresponding battery group. Through the system of the present application, independent heat management of each battery group can be realized, the heat exchange requirements of different battery groups during the operation of the multi-layer battery pack are met, thereby facilitating the realization of the temperature consistency of different battery groups, and further facilitating the increase of the service life of the multi-layer battery pack and the higher safety and reliability. BRIEF DESCRIPTION OF DRAWINGS

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

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

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

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

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

[0053] Figure 4 A structural schematic diagram of a heat management system provided by an embodiment of the present application Figure 6 ;

[0054] Figure 5 A structural schematic diagram of a heat management system provided by an embodiment of the present application Figure 7 ;

[0055] Figure 8 A flowchart of a heat management method provided by an embodiment of the present application;

[0056] Figure 9 A structural schematic diagram of a heat management device provided by an embodiment of the present application;

[0057] Figure 1 A structural schematic diagram of an electronic device is provided for an embodiment of the present application.

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

[0059] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, and the term "exemplary" is used herein to mean "serving as an example, instance, or illustration." The following description is not intended to limit the scope of the present application concept in any way, but rather to provide an example of how the present application concept can be implemented. The following description includes specific details for the purpose of providing a thorough understanding of the present application concept. However, it will be apparent to those skilled in the art that the present application concept can be practiced without these specific details.

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

[0061] Specifically, the thermal management system cools the battery pack when it overheats, and heats or insulates the battery pack when its temperature is too low, thereby achieving thermal management of the battery pack. In known technology, the thermal management system generally includes a cooling / heating medium, a heat exchanger, a temperature sensor, a control unit, and a pipeline and valve for delivering the cooling or heating medium.

[0062] The heat exchanger is used to exchange heat between the cooling / heating medium and the battery pack to ensure effective thermal management. The temperature sensor is distributed inside and outside the battery pack to monitor the battery temperature in real time. The control unit receives data from the temperature sensor and controls the corresponding valve to operate the cooling or heating system according to the preset temperature range.

[0063] An example of a known technology provides a multi-layer battery pack with a cooling system, including a battery group and a cooling assembly, the battery group including a plurality of battery strings, each battery string including a plurality of battery cells connected in series, the battery strings arranged along a y direction, and the battery strings arranged along a x direction and a z direction; the cooling assembly including a first cooling pipe, a second cooling pipe, a liquid outlet pipe, and a liquid inlet pipe; the first cooling pipe and the second cooling pipe are respectively fixedly arranged on both sides of the battery group along the y direction, and the two ends of each battery string are respectively in fluid communication with the first cooling pipe and the second cooling pipe; the liquid inlet pipe is in fluid communication with one end of the first cooling pipe, and the liquid outlet pipe is in fluid communication with one end of the second cooling pipe.

[0064] In the above process, the first cooling pipe and the second cooling pipe connected with the liquid inlet pipe and the liquid outlet pipe are used to cool the battery cells inside the battery pack. It can be understood that there is only one battery cooling system in essence, which cannot manage the heat according to the heat generation needs of different battery cells, thereby easily leading to uneven temperature of the entire battery cells, and thus easily leading to attenuation of the service life of the battery pack.

[0065] Therefore, the present application provides a battery pack and a heat management system, method, device, equipment, and storage medium, which are used to solve the above problems. Specifically, in the present application, a temperature adjusting plate is arranged between adjacent battery groups, a temperature adjusting valve is arranged to connect the temperature adjusting plate and a temperature source, and a temperature control unit is configured to generate a temperature adjusting instruction for controlling the corresponding temperature adjusting valve according to first temperature information of the battery group and / or second temperature information of the temperature adjusting plate, so as to realize heat management of the battery pack.

[0066] Through the above process, when any part of the battery group has a heat exchange demand, the corresponding temperature adjusting valve can be independently controlled to enable the corresponding battery group to timely realize heat exchange, instead of heat exchange treatment of the entire battery pack, thereby facilitating the battery groups in the battery pack to maintain temperature consistency, and thereby facilitating the service life of the battery pack to be increased and the safety and reliability of the battery pack to be higher.

[0067] It can be understood that the system of the present application is applicable to any battery pack including a plurality of battery groups. For example, Figure 1 An application scenario diagram of a heat management system provided by an embodiment of the present application is shown in FIG. 1. Figure 2 As shown in FIG. 1, the method of the present application can be used in a battery pack including three layers of battery groups. Specifically, the battery pack includes a cover plate, a bottom plate, and three layers of battery groups stacked in a z direction, including an upper layer of battery groups, a middle layer of battery groups, and a lower layer of battery groups. Each battery group includes a plurality of single batteries.

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

[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, for obtaining the first temperature information of each battery pack and the second temperature information of each temperature adjusting plate. The temperature control unit is also connected to the three-way valve, for generating a temperature adjusting instruction for controlling the three-way valve based on the obtained first temperature information and second temperature information.

[0070] It can be understood that the temperature control unit sends the temperature adjusting instruction to the three-way valve, and the three-way valve adjusts the current opening degree in response to the temperature adjusting instruction when receiving the temperature adjusting instruction, thereby realizing the thermal management of the corresponding battery pack.

[0071] Based on the above arrangement, the temperature control unit can independently manage the corresponding temperature adjusting 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 demand of different battery packs during the operation of the multi-layer battery pack, which is conducive to realizing the uniform control of the temperature field of different battery packs, and further conducive to increasing the service life of the multi-layer battery pack and improving the safety and reliability.

[0072] It can be understood that in actual application, the above-mentioned three-way valve can be replaced by two two-way valves for connecting two temperature adjusting plates and a temperature source, which is not limited in the present embodiment. In addition, the temperature control unit can also control the three-way valve through the first temperature information or the second temperature information, which is not limited in the present embodiment, as long as it can realize the thermal management of each battery pack.

[0073] It is worth noting that the medium in the temperature adjusting plate can be a liquid, and the temperature source can be a cooler or a heater. The cooler and the heater are respectively connected to a water source, for cooling the water source when cooling treatment is needed for the corresponding battery pack in the battery pack, and for heating the water source when heating treatment is needed for the corresponding battery pack in the battery pack.

[0074] It can be understood that the form of the medium in the temperature adjusting plate is not limited in the present embodiment, as long as it can realize the thermal management of the battery pack.

[0075] Some embodiments of the present application will be described in detail with reference to the drawings. The following embodiments and features of the embodiments described below can be combined with each other in the case of no conflict.

[0076] The present application provides a thermal management system, Figure 1 The present application provides a thermal management system, Figure 3 , The present application provides a thermal management system, Figure 2 The present application provides a thermal management system, Figure 3 As shown in Figure 2 and Figure 3 The present application provides a thermal management system, which 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, each of which includes a plurality of single batteries.

[0077] In the present application, the temperature source is arranged in one, and the temperature regulating plate is arranged between adjacent battery groups. The temperature source is connected to each temperature regulating plate through a pipeline, and the temperature regulating valve is arranged on the pipeline between the temperature source and the temperature regulating plate, which is used to connect or disconnect the temperature regulating plate and the temperature source.

[0078] More specifically, as shown in Figure 2 In the present application, the temperature regulating valve can be a three-way valve arranged between each two temperature regulating plates and the temperature source, which 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 simultaneously. It can be understood that each two temperature regulating plates can correspond to one temperature regulating valve, or each adjacent two temperature regulating plates can correspond to one temperature regulating valve, which is not limited in the present application.

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

[0080] More specifically, in the embodiment, the temperature sensor comprises a first sensor and / or a second sensor, wherein the first sensor is arranged on each battery pack to obtain first temperature information of the corresponding battery pack, and specifically, the first temperature information is used to indicate a temperature value of the corresponding battery pack. It can be understood that the position and number of the first sensor on each battery pack are not limited in the embodiment, and when the first sensor is provided with two or more than two, the first temperature information specifically indicates the average temperature of each first sensor output.

[0081] The second sensor can be arranged on each temperature adjusting plate to obtain second temperature information of the corresponding temperature adjusting plate, and specifically, the second temperature information is used to indicate an inlet-outlet temperature difference of the corresponding temperature adjusting plate or a temperature corresponding to the temperature adjusting plate. It can be understood that the position and number of the second sensor are not limited in the embodiment, and when the second temperature information is used to indicate the inlet-outlet temperature difference of the corresponding temperature adjusting plate, the second sensor can be arranged at the connection between the temperature adjusting 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 adjusting plate, the second sensor can be arranged at any position of the temperature adjusting plate.

[0082] In the embodiment, as shown in Figure 2 and Figure 3 , at least two battery packs of the battery pack are arranged in a stack. It can be understood that when the battery pack comprises two battery packs, the temperature adjusting plate is arranged between the two battery packs and connected to the temperature source through the two-way valve. When the battery pack comprises more than two battery packs, the temperature adjusting plate can be arranged with at least one, and the demand temperature adjusting valve can be a three-way valve or a two-way valve, and the type of the temperature adjusting valve is not limited in the embodiment, as long as the temperature adjusting plate is located between adjacent battery packs and connected to the temperature source through the temperature adjusting valve.

[0083] In the embodiment, as shown in Figure 4 and Figure 3 , 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 adjusting instruction for controlling the corresponding temperature control valve according to the first temperature information and / or the second temperature information. Correspondingly, the temperature control valve obtains the temperature adjusting instruction and performs the opening degree adjusting operation in response to the temperature adjusting instruction to make the corresponding temperature adjusting plate communicate with or not communicate with the temperature source.

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

[0085] More specifically, in the present embodiment, when the temperature control unit generates the temperature adjustment instruction of the corresponding temperature control valve according to the first temperature information, the temperature control unit is configured to generate the 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 meets the first preset range.

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

[0087] In practical applications, the temperature control unit can be further configured to generate the 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 meets the second preset range, and the flow rate of the temperature source to the corresponding temperature adjustment plate at this time is greater than that in the previous case, i.e., the case where the temperature indicated by the first temperature information meets the first preset range but does not meet 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 can also be configured to generate the temperature adjustment instruction through the second temperature information, or to generate the temperature adjustment instruction for controlling the corresponding temperature adjustment valve in combination with the first temperature information and the second temperature information.

[0089] The temperature control unit is configured to generate the temperature adjustment instruction through the second temperature information, and the second temperature information is specifically used to indicate the temperature of the corresponding temperature adjustment plate. The specific implementation can refer to the process of generating the temperature adjustment instruction through the first temperature information, which will not be described here.

[0090] When the temperature control unit is configured to generate the temperature regulation instruction for controlling the corresponding temperature regulation valve in combination with the first temperature information and the second temperature information, if the second temperature information is used to indicate the average temperature of the inlet and outlet of the corresponding temperature regulation plate, the first instruction for controlling the corresponding temperature regulation valve can be generated when the temperature of the corresponding battery pack indicated by the first temperature information meets the first preset range and the difference between the average temperature indicated by the second temperature information and the temperature indicated by the first temperature information is greater than a preset value, and the first instruction is used to indicate that the flow of the temperature source to the corresponding temperature regulation plate is greater than a preset flow. The second instruction for controlling the corresponding temperature regulation valve can be generated when the temperature of the corresponding battery pack indicated by the first temperature information meets the first preset range and the 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, and the second instruction is used to indicate that the flow of the temperature source to the corresponding temperature regulation plate is not greater than the preset flow.

[0091] Through the above arrangement, when the temperature of the corresponding battery pack rises too fast, the corresponding battery pack can be timely managed by increasing the flow, thereby effectively protecting the battery pack.

[0092] In actual application, the temperature control unit can also be configured to generate the corresponding temperature regulation instruction in other manners in combination with the first temperature information and the second temperature information, which is not limited in the embodiment. The application provides several possible implementation manners, which can be referred to in the following embodiments, and will not be described here.

[0093] In the system provided in the 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 heat exchange demand in any battery pack, the corresponding temperature regulation plate is communicated with the temperature source through the control of the corresponding temperature regulation valve, so as to timely receive the medium and perform heat exchange, thereby realizing heat management.

[0094] Through the system of the embodiment, independent control of different temperature regulation plates can be realized, thereby realizing independent heat management of different battery packs, which is beneficial to realize the temperature consistency of the battery packs, and further beneficial to increase the service life of the battery pack and make the battery pack safer and more reliable.

[0095] In a possible implementation manner, the temperature execution unit includes at least one regulation plate group, and the regulation plate group includes two temperature regulation plates, and each regulation plate group corresponds to one temperature regulation valve and three layers of battery packs.

[0096] The temperature regulation valve is specifically a three-way valve, the three layers of battery packs include a first battery pack, a second battery pack and a third battery pack which are stacked, the first regulation plate of the regulation plate group is located between the first battery pack and the second battery pack, and the second regulation plate of the regulation plate group is located between the second battery pack and the third battery pack.

[0097] On this basis, as a design, Figure 4 A structure diagram of a heat management system provided by an embodiment of the present application Figure 4 As Figure 5 As shown in the figure, every three battery groups form a group, constituting a three-layer battery group. The temperature adjusting plate is specifically arranged between adjacent battery groups in each three-layer battery group, that is, each three-layer battery group corresponds to two temperature adjusting plates and one temperature adjusting valve.

[0098] For the heat management system as Figure 4 shown, the embodiment of the present application further details the temperature execution unit and the temperature control unit on the basis of the foregoing embodiment.

[0099] Specifically, for any three-layer battery group, when the first temperature information indicates that only the temperature of one battery group meets the first preset range, the temperature control unit is specifically used for:

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

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

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

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

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

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

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

[0107] In the embodiment, for any three-layer battery pack, when only the temperature of one battery pack meets the first preset range, any one of the first temperature regulating instruction, the second temperature regulating instruction and the third regulating instruction is determined according to the position thereof. It can be understood that the position of the battery pack is specifically the position thereof in the current three-layer battery pack, which can be upper, middle or lower, and is used to indicate that it is the first battery pack, the second battery pack or the third battery pack, respectively.

[0108] Through the above setting, when only any one of the first battery pack, the second battery pack and the third battery pack has heat exchange demand, the target temperature regulating valve is kept at the corresponding opening degree among the first opening degree, the second opening degree and the third opening degree, and the corresponding temperature regulating plate is individually communicated with the temperature source, so as to realize individual heat management of any battery pack, which is beneficial to maintaining the temperature consistency of each battery pack.

[0109] In the embodiment, when only the second battery pack has heat exchange demand, the target regulating valve is kept at the third opening degree, and the third opening degree is the average of the first opening degree and the second opening degree, that is, the two temperature regulating plates simultaneously realize heat management of the second battery pack, which is beneficial to quickly realizing heat management of the second battery pack and realizing temperature field uniformity of the three-layer battery pack.

[0110] In the 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 regulating 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 arranged at the corresponding temperature regulating plate and the inlet and outlet water pipelines, respectively.

[0111] Specifically, at this time, the temperature control unit is specifically used for:

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

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

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

[0115] Upon receiving the fourth temperature adjusting instruction, a fourth opening degree adjusting operation is performed to adjust to a fourth opening degree in response to the fourth temperature adjusting instruction. Upon receiving the fifth temperature adjusting instruction, a fifth opening degree adjusting operation is performed to adjust to a fifth opening degree in response to the fifth temperature adjusting instruction.

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

[0117] Wherein, when the opening degree of the target temperature adjusting valve is kept at γ, the temperature source is communicated with the first adjusting plate and the second adjusting plate, when the opening degree of the target temperature adjusting valve is kept at γ1, the temperature source is communicated with the first adjusting plate and not communicated with the second adjusting plate, and when the opening degree of the target temperature adjusting valve is kept at γ2, the temperature source is not communicated with the first adjusting plate and communicated with the second adjusting plate; ε is a three-way valve adjusting parameter, and ε ∈ [0, 1].

[0118] It can be understood that when the temperature difference between the inlet and the outlet of the first adjusting plate is greater than the temperature difference between the inlet and the outlet of the second adjusting plate, it indicates that the temperature change of the first adjusting plate is faster, i.e., it indicates that the heat exchange demand of the first battery pack is greater than that of the third battery pack. Therefore, in the embodiment, the temperature control unit generates the fourth temperature adjusting instruction at this time, so that the target temperature adjusting valve is kept at the fourth opening degree, i.e., the flow of the temperature source to the first adjusting plate is greater than that to the second adjusting plate. On the contrary, the fifth temperature adjusting instruction is generated, so that the target temperature adjusting valve is kept at the fifth opening degree, i.e., the flow of the temperature source to the second adjusting plate is greater than that to the first adjusting plate.

[0119] Through the above setting, the temperature adjusting plate with higher heat exchange demand can obtain greater flow, thereby being beneficial to timely heat management of the battery pack with higher heat exchange demand and being beneficial to timely keeping the temperature consistency of each battery pack.

[0120] It can be understood that if the second temperature information indicates that the temperature difference between the inlet and outlet of the first adjusting plate is equal to the temperature difference between the inlet and outlet of the second adjusting plate, the opening degree of the target temperature adjusting valve is kept at the third opening degree, so as to ensure the temperature consistency between the battery groups.

[0121] Figure 5 The thermal management system shown divides each battery group of the battery pack into several three-layer battery groups, and makes each three-layer battery group correspond to one target temperature adjusting valve and two temperature adjusting plates. The thermal management of the three-layer battery group can be realized by controlling the target temperature adjusting plate, so that the control logic of the temperature control unit is simple, thereby facilitating timely thermal management of each battery group, and thus facilitating the safety of the battery pack.

[0122] As another design, Figure 5 The structure of a thermal management system provided by an embodiment of the present application Figure 4 As shown in Figure 6 As shown, a temperature adjusting plate is arranged between each adjacent two battery groups. Each adjacent two temperature adjusting plates correspond to one temperature adjusting valve, that is, each adjacent two temperature adjusting plates are connected with the temperature source through the same temperature adjusting valve.

[0123] It can be understood that at this time, each adjacent two temperature adjusting plates correspond to one three-layer battery group, and each three-layer battery group and any adjacent three-layer battery group adjacent thereto share one battery group, 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 group, when the first battery group or the third battery group thereof has a heat exchange demand, it is necessary to determine whether the thermal management of the first battery group or the third battery group needs to be realized by adjusting the target temperature adjusting valve corresponding to the current three-layer battery group, in combination with the state of the temperature adjusting valve of the adjacent battery group adjacent to the current three-layer battery group.

[0125] Therefore, in the present embodiment, the temperature control unit is further configured to: when the first temperature information indicates that only the first battery group or the third battery group meets the first preset range, acquire the opening degree information of the adjacent temperature adjusting valve, and determine whether to generate the first temperature adjusting instruction or the second temperature adjusting instruction for controlling the target temperature adjusting valve according to the opening degree information of the adjacent temperature adjusting valve and the first temperature information.

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

[0127] When the opening degree information indicates that the adjacent temperature adjusting valve is at the target opening degree, 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 adjusting instruction or the second temperature adjusting instruction.

[0128] The minimum value of the second preset range is greater than the minimum value of the first preset range, and when the adjacent temperature adjusting valve is at the target opening degree, the other temperature adjusting panel adjacent to the first battery pack or the third battery pack is communicated with the temperature source.

[0129] In the embodiment, when the first temperature information indicates that the temperature of the first battery pack meets the first preset range, and the second battery pack and the third battery pack do not meet the first preset range, the temperature control unit determines that only the first battery pack has heat exchange demand; and when the first temperature information indicates that the temperature of the third battery pack meets the first preset range, and the first battery pack and the second battery pack do not meet the first preset range, the temperature control unit determines that only the third battery pack has heat exchange demand.

[0130] For any of the above cases, the temperature control unit first acquires the opening degree information of the adjacent temperature adjusting valve corresponding to the adjacent battery pack, to determine whether the other temperature adjusting panel adjacent to the first battery pack or the third battery pack is communicated with the temperature source through the adjacent temperature adjusting valve. Further, when the opening degree information indicates that the adjacent temperature adjusting valve is at the target opening degree, the temperature control unit determines whether to generate the first temperature adjusting instruction or the second temperature adjusting 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 the first adjusting panel or the second adjusting panel needs to be communicated with the temperature source by adjusting the target temperature adjusting valve to realize further heat management through the first adjusting panel or the second adjusting panel.

[0131] It can be understood that, in the embodiment, based on the heat management system shown in Figure 5 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 temperature of at least two battery packs meets the first preset range, the temperature control unit generates the temperature adjusting instruction for controlling the target temperature adjusting valve in the manner as defined in the foregoing embodiment based on the heat management system shown in Figure 6 , and details are not repeated here.

[0132] In the system of the embodiment, the temperature adjusting plates are arranged between every two adjacent battery groups, and for each three-layer battery group, when only the first battery group or the third battery group thereof has heat exchange demand, the first temperature adjusting instruction or the second temperature adjusting instruction can be determined by combining the opening information of the adjacent temperature adjusting valves and the first temperature information, so as to realize accurate management of each temperature adjusting plate, so that the system can realize heat management of the battery pack containing a number of battery groups which is not a multiple of 3, and the temperature of each battery group in the battery pack containing a number of battery groups which is not a multiple of 3 can be consistent.

[0133] In another possible implementation manner, the temperature adjusting valves in the temperature executing unit are arranged in pairs, and each pair of temperature adjusting valves is a three-way valve. Among them, the temperature adjusting plate corresponding to two temperature adjusting valves is a first temperature adjusting plate, and the temperature adjusting plate corresponding to one temperature adjusting valve is a second temperature adjusting plate.

[0134] As a design, Figure 6 The structure of a heat management system provided by the embodiment Figure 7 As Figure 7 The temperature adjusting plates are arranged between every two adjacent battery groups. Based on the foregoing embodiment, the temperature control unit of the heat management system shown in Figure 8 is further described in detail.

[0135] It can be understood that for each battery group, if it is the most edge battery group, it is adjacent to only the second temperature adjusting plate, and heat management can be realized only through the temperature adjusting valve corresponding to the second temperature adjusting plate. Otherwise, the corresponding battery group is adjacent to the first temperature adjusting plate and the second temperature adjusting plate, or is adjacent to only the first temperature adjusting plate. At this time, the corresponding battery group can realize heat management through the corresponding two temperature adjusting valves.

[0136] Therefore, in the embodiment, for the battery group adjacent to any first temperature adjusting plate, when the first temperature information indicates that the temperature of the battery group meets the first preset range, the temperature adjusting instructions for controlling the two temperature adjusting valves corresponding to the first temperature adjusting plate are generated according to the priority of the two temperature adjusting valves. Among them, the priority is based on the opening information of the two temperature adjusting valves.

[0137] Specifically, in the embodiment, for the battery pack adjacent to any first temperature adjusting panel, 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 adjusting valves corresponding to the first temperature adjusting panel according to the opening degree information of the two temperature adjusting valves. Then, the temperature control unit generates the temperature adjusting instructions for controlling the two temperature adjusting valves according to the priority of the two temperature adjusting valves.

[0138] When the temperature control unit determines the priority of the two temperature adjusting valves corresponding to the first temperature adjusting panel, the temperature control unit is specifically configured to: for any temperature adjusting valve of the two temperature adjusting valves corresponding to the first temperature adjusting panel, determine the target angle of the temperature adjusting valve when the temperature adjusting valve is adjusted to the required opening degree according to the opening degree information, if the target opening degrees corresponding to the two temperature adjusting valves are consistent, determine that the priority of the two temperature adjusting valves is consistent, otherwise, determine that the temperature adjusting valve corresponding to the smaller target opening degree has higher priority.

[0139] Further, when the priority of the two temperature adjusting valves is consistent, the temperature control unit generates the temperature adjusting instructions for controlling any temperature adjusting valve to be adjusted to the target opening degree and for keeping the other temperature adjusting valve at the current opening degree. When the priority of the two temperature adjusting valves is inconsistent, the temperature control unit generates the temperature adjusting instructions for controlling the temperature adjusting valve with higher priority to be adjusted to the required opening degree and for keeping the temperature adjusting valve with lower priority at the current opening degree.

[0140] It can be understood that, in actual application, the temperature control unit can also generate the temperature adjusting instructions for controlling the two temperature adjusting valves in combination with the priority of the two temperature adjusting valves and the second temperature information of the first temperature adjusting panel.

[0141] Specifically, when the second temperature information of the first temperature adjusting panel indicates that the temperature difference between the inlet and the outlet of the first temperature adjusting panel is less than a preset value, the temperature control unit generates the temperature adjusting instructions for controlling one of the two temperature adjusting valves to be adjusted to the required opening degree according to the priority of the two temperature adjusting valves, which can be specifically understood with reference to the foregoing content, and will not be described herein again.

[0142] When the second temperature information of the first temperature adjusting panel indicates that the temperature difference between the inlet and the outlet of the first temperature adjusting panel is not less than the preset value, the temperature control unit generates the temperature adjusting instructions for controlling the two temperature adjusting valves to be adjusted to the required opening degree in sequence according to the priority of the two temperature adjusting valves.

[0143] It can be understood that the demand opening degree in the above process is used to connect the first temperature adjusting plate with the temperature source. In addition, in actual application, for each first temperature adjusting plate, the temperature control unit can also determine the priority of the two temperature adjusting valves corresponding to the first temperature adjusting plate based on the service life of the temperature adjusting valve, for example, the temperature adjusting valve with shorter service life can have higher priority, so as to guarantee the overall service life of the thermal management system. The way of determining the priority of the two temperature adjusting valves corresponding to each first temperature adjusting plate is not limited in the embodiment.

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

[0145] It can be understood that the temperature control unit can also generate the corresponding temperature adjusting instruction for controlling the temperature adjusting valve corresponding to the second temperature adjusting plate when the first temperature information indicates that the temperature of the battery pack meets the second preset range. For the limitation of the first preset range and the second range, and the limitation of the generated temperature adjusting instruction, reference can be made to the content of the foregoing embodiment, which will not be described here. In the system of the embodiment, the temperature adjusting plate is arranged between each adjacent two battery packs, and the connection with the temperature source can be realized through one temperature adjusting valve between each adjacent two temperature adjusting plates. Therefore, the thermal management system of the embodiment can be applied to the battery pack containing three or more battery packs of any layer number, thereby improving the applicability of the thermal management system.

[0146] In addition, for the above battery pack, in response to the heat exchange demand of any battery pack, the temperature control unit can realize accurate thermal management on one hand, and on the other hand, for the battery pack that can realize thermal management through two temperature adjusting valves, the priority of the two temperature adjusting valves is combined to realize thermal management, which is conducive to guaranteeing the service life consistency of each temperature adjusting valve under the premise of accurate management, thereby effectively guaranteeing the overall service life of the thermal management system.

[0147] The embodiment of the application also provides a thermal management method applied to the thermal management system in the foregoing embodiment. Specifically, Figure 8 A flowchart of a thermal management method provided by the embodiment of the application is shown in FIG. 8. Figure 9 As shown in FIG. 8, the method of the embodiment includes the following steps.

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

[0149] S702, generating, according to the first temperature information and / or the second temperature information, a temperature regulation instruction for controlling the corresponding temperature regulation valve, so that the temperature regulation valve performs the opening degree regulation operation according to the temperature regulation instruction; the temperature regulation valve is used to connect the corresponding temperature regulation plate of the corresponding battery pack and the temperature source.

[0150] It can be understood that the method of the embodiment can be specifically executed by a temperature control unit in the thermal management system. For the limitations of the temperature sensor, the first temperature information, the second temperature information, the temperature regulation valve, the temperature regulation instruction and the like, reference can be made to the foregoing embodiment content, which will not be described here.

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

[0152] It should be further noted that although each step in the flowchart is displayed in sequence according to the arrow indication, these steps are not necessarily executed in sequence according to the arrow indication. Unless explicitly stated in this article, the execution of these steps has no strict order limitation, and these steps can be executed in other order. Moreover, at least part of the steps in the flowchart can include multiple sub-steps or multiple stages, which 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 sequential, but can be executed in rotation or alternation with other steps or sub-steps or stages of other steps.

[0153] From the perspective of method flow, the above embodiment introduces a thermal management method, and the following embodiment introduces a thermal management device from the perspective of virtual module or virtual unit. For details, see the following embodiment.

[0154] Figure 9 A structural schematic diagram of a thermal management device provided by the embodiment of the present application is shown in FIG. 1, in the embodiment, the thermal management device can include: Figure 9

[0155] The acquisition module 81 is configured to acquire, by the temperature sensor, the first temperature information of each battery pack and / or the second temperature information of each temperature regulation plate;

[0156] ​The management module 82 is configured to generate a temperature adjustment instruction for controlling the corresponding temperature adjustment valve according to the first temperature information and / or the second temperature information, so that the temperature adjustment valve performs an opening degree adjustment operation according to the temperature adjustment instruction; and the temperature adjustment valve is configured to connect the corresponding temperature adjustment plate of the corresponding battery pack to 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 functional division, and another division mode can be used in actual implementation. For example, a plurality of units / modules or components can be combined, or can be integrated into another system, or some features can be omitted or not executed.

[0158] In an embodiment of the present application, an electronic device is provided, Figure 9 A structural schematic diagram of an electronic device provided in an embodiment of the present application is shown in ​ As shown in ​ The electronic device shown in the above-mentioned embodiment includes a processor 91 and a memory 92. The processor 91 and the memory 92 are connected, for example, through a bus 93. Optionally, the electronic device can also include a transceiver 94. It should be noted that the transceiver 94 is not limited to one in actual application, and the structure of the electronic device does not constitute a limitation on the embodiments of the present application.

[0159] The processor 91 can be a central processing unit (CPU), a general-purpose 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 can implement or execute various exemplary logical blocks, modules and circuits described in combination with the disclosure of the present application. The processor 91 can also be a combination of computing functions, such as one or more microprocessor combinations, combinations of DSP and microprocessor, etc.

[0160] The bus 93 can include a path for transmitting information between the above-mentioned components. The bus 93 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 93 can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience,​ Only one bus or type of bus can be present, however.

[0161] The memory 92 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of storing desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

[0162] The memory 92 is configured to store application program codes for implementing the solutions of the present application, and the processor 91 is configured to control the execution. The processor 91 is configured to execute the application program codes stored in the memory 92 to implement the content shown in the foregoing method embodiments.

[0163] The present application also provides a computer readable storage medium, which can include a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, specifically, the computer readable storage medium stores program instructions, and the program instructions are used to implement the method in each of the above embodiments.

[0164] The present application also provides a computer program product, which includes a computer program, and the computer program is executed by a processor to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, and thus will not be described herein.

[0165] The present application also provides a battery pack, which includes at least two battery groups and the thermal management system in the above embodiments.

[0166] In the above embodiments, the description of each of the embodiments focuses on different aspects of the embodiments. The parts not described in detail in a certain embodiment can be seen in the relevant description of the other embodiments. The technical features of the above embodiments can be combined in any manner. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as falling within the scope of the disclosure.

[0167] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0168] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A thermal management system, characterized in that, The system includes a temperature execution unit and a temperature control unit, wherein the temperature execution unit is disposed inside the battery pack, and the battery pack includes at least two battery packs. The temperature execution unit includes a temperature source, a temperature regulating plate disposed between adjacent battery packs, a temperature sensor for acquiring 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 acquire the first temperature information and / or the second temperature information through the temperature sensor. It is also used to generate a temperature regulation command 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 regulation command to perform an opening regulation operation. Specifically, every two temperature regulating plates are defined as a regulating plate group, and each regulating plate group corresponds to a temperature regulating valve and a three-layer battery pack; wherein the temperature regulating valve is a three-way valve, and the three-layer battery pack includes a first battery pack, a second battery pack, and a third battery pack arranged sequentially, wherein the first regulating plate of the regulating plate group is located between the first battery pack and the second battery pack, and the second regulating plate of the regulating plate group is located between the second battery pack and the third battery pack; Alternatively, a temperature regulating valve may be provided between each pair of adjacent temperature regulating plates, wherein the temperature regulating valve is a three-way valve; wherein, the temperature regulating plate with two adjacent temperature regulating plates and corresponding to two temperature regulating valves is the first temperature regulating plate; and the temperature regulating plate with two adjacent temperature regulating plates and corresponding to one temperature regulating valve is the second temperature regulating plate.

2. The system according to claim 1, 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 regulation command for controlling the target temperature regulating valve is generated and sent to the target temperature regulating valve; the target temperature regulating valve is the temperature regulating valve corresponding to the three-layer battery pack. The target temperature regulating valve is specifically used to: respond to the first temperature regulating command, adjust to a first opening degree, so that the temperature source is connected to the first regulating plate and not connected to the second regulating plate.

3. The system according to claim 1, 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 regulation command for controlling the target temperature regulating valve is generated and sent to the target temperature regulating valve; the target temperature regulating valve is the temperature regulating valve corresponding to the three-layer battery pack. The target temperature regulating valve is specifically used to: respond to the second temperature regulating command, adjust to the second opening degree, so that the temperature source is not connected to the first regulating plate but connected to the second regulating plate.

4. The system according to any one of claims 1-3, 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 regulation command 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 to: respond to the third temperature regulating command and adjust to a third opening degree, wherein the third opening degree is the average of the first opening degree and the second opening degree; when the target temperature regulating valve is at the first opening degree, the temperature source is connected to the first regulating plate and not connected to the second regulating plate; when the target temperature regulating valve is at the second opening degree, the temperature source is not connected to the first regulating plate and is connected to the second regulating plate.

5. The system according to any one of claims 1-3, 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 at least two battery packs in the three-layer battery pack meets 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, then a fourth temperature regulating command 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 to: respond to the fourth temperature regulation and adjust to a fourth opening degree, wherein the fourth opening degree is represented as... 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 not connected to the second regulating plate; 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 regulating parameter of the three-way valve, ε∈[0,1].

6. The system according to claim 5, 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 at least two battery packs in the three-layer battery pack meets 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, then a fifth temperature regulating command for controlling the target temperature regulating valve is generated. The target temperature regulating valve is specifically used to: respond to the fifth temperature regulating command and adjust to a fifth opening degree, wherein the fifth opening degree is represented as... .

7. The system according to any one of claims 1-3, characterized in that, When the temperature regulating plate is provided between every two adjacent battery packs, the temperature control unit is also used for: For any three-layer battery pack, when the first temperature information indicates that only the temperature of the first battery pack or the third battery pack 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 pack of the three-layer battery pack, the first battery pack is the third battery pack of the adjacent three-layer battery pack, or the third battery pack is the first battery pack of the adjacent three-layer battery pack. Based on the first temperature information and the opening information, determine whether to generate a first temperature regulation command or a second temperature regulation command for controlling the target temperature regulating valve; The first temperature adjustment command is used to adjust the target temperature regulating valve to a first opening degree, and the second temperature adjustment command is used to adjust the target temperature regulating valve to a second opening degree. The target temperature regulating valve is the temperature regulating valve corresponding to the three-layer battery pack.

8. The system according to claim 7, characterized in that, The temperature control unit is specifically used for: When the opening information indicates that the adjacent temperature regulating valve is at the target opening, and the first temperature information indicates that the temperature of the first battery pack or the third battery pack meets the second preset range, the first temperature regulating command or the second temperature regulating command is generated; when the minimum value of the second preset range is greater than the minimum value of the first preset range, and the adjacent temperature regulating valve is at the target opening, other temperature regulating plates adjacent to the first battery pack or the third battery pack are connected to the temperature source.

9. The system according to claim 1, 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 meets the first preset range, a temperature regulation command for controlling the two temperature regulating valves is generated according to the priority of the two temperature regulating valves corresponding to the first temperature regulating plates; the priority is determined based on the opening information of the two temperature regulating valves.

10. The system according to claim 9, characterized in that, The temperature control unit is specifically used for: For a battery pack that is adjacent to only one of the second temperature regulating plates, when the first temperature information indicates that the temperature of the battery pack meets the first preset range, a temperature regulating command is generated to control the temperature regulating valve corresponding to the second temperature regulating plate.

11. A thermal management method, characterized in that, Applied to the thermal management system as described in any one of claims 1-10; the method includes: The first temperature information of each battery pack and / or the second temperature information of each temperature regulating plate are obtained by temperature sensors. Based on the first temperature information and / or the second temperature information, a temperature regulation command is generated to control the corresponding temperature regulating valve, causing the temperature regulating valve to perform an opening adjustment operation in response to the temperature regulation command; the temperature regulating valve is used to connect the temperature regulating plate corresponding to the battery pack to the temperature source; Specifically, every two temperature regulating plates are defined as a regulating plate group, and each regulating plate group corresponds to a temperature regulating valve and a three-layer battery pack; wherein the temperature regulating valve is a three-way valve, and the three-layer battery pack includes a first battery pack, a second battery pack, and a third battery pack arranged sequentially, wherein the first regulating plate of the regulating plate group is located between the first battery pack and the second battery pack, and the second regulating plate of the regulating plate group is located between the second battery pack and the third battery pack; Alternatively, a temperature regulating valve may be provided between each pair of adjacent temperature regulating plates, wherein the temperature regulating valve is a three-way valve; wherein, the temperature regulating plate with two adjacent temperature regulating plates and corresponding to two temperature regulating valves is the first temperature regulating plate; and the temperature regulating plate with two adjacent temperature regulating plates and corresponding to one temperature regulating valve is the second temperature regulating plate.

12. A thermal management device, characterized in that, The device includes: The acquisition module is used to acquire first temperature information of each battery pack and / or second temperature information of each temperature regulating plate through temperature sensors. The management module is used to generate a temperature regulation command 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 regulation command to perform an opening adjustment operation; the temperature regulating valve is used to connect the temperature regulating plate corresponding to the corresponding battery pack and the temperature source; Specifically, every two temperature regulating plates are defined as a regulating plate group, and each regulating plate group corresponds to a temperature regulating valve and a three-layer battery pack; wherein the temperature regulating valve is a three-way valve, and the three-layer battery pack includes a first battery pack, a second battery pack, and a third battery pack arranged sequentially, wherein the first regulating plate of the regulating plate group is located between the first battery pack and the second battery pack, and the second regulating plate of the regulating plate group is located between the second battery pack and the third battery pack; Alternatively, a temperature regulating valve may be provided between each pair of adjacent temperature regulating plates, wherein the temperature regulating valve is a three-way valve; wherein, the temperature regulating plate with two adjacent temperature regulating plates and corresponding to two temperature regulating valves is the first temperature regulating plate; and the temperature regulating plate with two adjacent temperature regulating plates and corresponding to one temperature regulating valve is the second temperature regulating plate.

13. An electronic device, characterized in that, The electronic device includes a processor and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in claim 11.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in claim 11.

15. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method as described in claim 11.

16. A battery pack, characterized in that, The battery pack includes at least two battery packs and also includes a thermal management system as described in any one of claims 1-10.

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