Battery pack, battery pack detection method, electronic device, and storage medium

Abstract

The application provides a battery pack, a detection method of the battery pack, an electronic device and a storage medium, including: a box body, an accommodating cavity is formed in the box body; a battery module is arranged in the accommodating cavity, and the battery module is used for providing electric energy; a battery management module is arranged in the accommodating cavity and is arranged along a first direction with the battery module, and the battery management module is used for sending a detection instruction; an image acquisition module is arranged inside the box body, the image acquisition module is in communication connection with the battery management module, and the image acquisition module is configured to receive the detection instruction sent by the battery management module, to acquire a target image inside the box body based on the detection instruction and send the target image to the battery management module; and the battery management module is configured to send the received target image to an analysis module, to obtain an analysis result of the battery pack by performing battery pack state analysis on the target image by the analysis module and send the analysis result to the battery management module, so that the overall detection efficiency of the battery pack is effectively improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a battery pack, a method for testing the battery pack, an electronic device, and a storage medium. Background Technology

[0002] The battery pack is a core component of new energy vehicles, providing electrical energy to the vehicle's motor to drive the vehicle. The operational safety and health status of the battery pack are directly related to the reliability of the entire vehicle.

[0003] In related technologies, abnormalities in the vehicle's battery can usually only be detected after a vehicle malfunctions. Because it is impossible to understand the working condition and status of the internal components of the battery pack in a timely manner, the detection efficiency of the battery pack is low, which in turn leads to lower vehicle safety. Summary of the Invention

[0004] The embodiments of this application provide a battery pack, a battery pack detection method, an electronic device, and a storage medium, which can improve the technical problem of low detection efficiency of battery packs, which in turn leads to low vehicle safety.

[0005] In a first aspect, embodiments of this application provide a battery pack, comprising: The box has a receiving cavity formed inside it; A battery module, wherein the battery module is disposed within the receiving cavity, and the battery module is used to provide electrical energy; A battery management module is disposed within the receiving cavity and arranged along a first direction with the battery module. The battery management module is used to send detection commands. An image acquisition module is disposed inside the housing and is communicatively connected to the battery management module. The image acquisition module is configured to receive a detection command sent by the battery management module, acquire a target image inside the housing based on the detection command, and send it to the battery management module. The battery management module is configured to send the received target image to the analysis module, so that the analysis module can perform battery pack status analysis on the target image to obtain the analysis result of the battery pack, and then send it to the battery management module.

[0006] In this way, the working condition and operating status of the internal components of the battery pack can be monitored in real time through the image acquisition module, which effectively improves the overall detection efficiency of the battery pack and avoids the safety risks caused by the failure to detect battery abnormalities in time.

[0007] In one embodiment, the battery pack further includes a power distribution control module, which is disposed within the receiving cavity and arranged along a first direction with the battery management module; The power distribution control module is communicatively connected to the battery management module and electrically connected to the battery module. The power distribution control module is used to control the working status of the battery module.

[0008] In this way, through the communication and interaction between the power distribution control module and the battery management module, as well as the electrical connection with the battery module, the working status of the battery module can be precisely controlled, thereby improving the operational safety and management reliability of the battery pack.

[0009] In one embodiment, the battery management module is further configured to: receive the analysis results of the target image sent by the analysis module, generate control commands based on the analysis results, and send them to the power distribution control module; The power distribution control module is also configured to receive control commands sent by the battery management module, and control the working state of the battery module to switch to a powered-on state or a powered-off state based on the control commands.

[0010] In this way, the battery management module generates control commands based on the analysis results, and links with the power distribution control module to switch the power on and off status of the battery module in real time, so as to realize intelligent protection against battery pack failures and improve the safety management efficiency of the battery pack.

[0011] In one embodiment, the image acquisition module includes at least one of a camera unit and a blue light unit.

[0012] In this way, by acquiring images of the inside of the battery pack through the camera unit and / or blue light unit, it is possible to adapt to different detection scenarios under different working conditions, thereby improving the comprehensiveness of image acquisition and the reliability of imaging.

[0013] In one embodiment, the housing includes a bottom plate and multiple side plates, which are sequentially connected along the circumference of the bottom plate to form a receiving cavity; a partition plate is provided on one side of the bottom plate corresponding to the receiving cavity, which is used to divide the receiving cavity into a first receiving area and a second receiving area, the first receiving area is used to receive the battery module, and the second receiving area is used to receive functional modules other than the battery module in the battery pack.

[0014] In this way, the interior of the box is divided into multiple independent storage areas by the partition plate, and the battery modules and other functional modules are placed in separate areas, so that the internal layout of the battery pack is neat. By placing the battery modules in independent storage areas, the expansion deformation of the battery modules can be limited and buffered, avoiding the safety hazards caused by the expansion of the battery modules squeezing other functional modules, and improving the overall structural stability and safety of the battery pack.

[0015] Secondly, embodiments of this application provide a method for detecting a battery pack, applied to a vehicle, the vehicle including a battery pack as described in any of the first aspects, the method comprising: The battery management module of the battery pack triggers a detection command, and the detection command is sent to the image acquisition module of the battery pack. The image acquisition module is controlled to acquire a target image inside the housing based on the detection command, and the target image is sent to the battery management module; The battery management module sends the received target image to the analysis module. The analysis module performs battery pack status analysis on the target image to obtain the analysis results of the battery pack, which are then sent to the battery management module.

[0016] In this way, the working condition and operating status of the internal components of the battery pack can be monitored in real time through the image acquisition module, which effectively improves the overall detection efficiency of the battery pack and avoids the safety risks caused by the failure to detect battery abnormalities in time.

[0017] In one embodiment, the step of performing battery pack status analysis on the target image through the analysis module to obtain the analysis results of the battery pack includes: The analysis module obtains a reference image of the battery pack; The analysis module performs battery pack status analysis based on the reference image and the target image to obtain the analysis results of the battery pack.

[0018] In this way, the analysis module compares and analyzes the reference image with the target image to accurately determine the operating status of each component in the battery pack, thereby improving the detection accuracy of the battery pack.

[0019] In one embodiment, the step of performing battery pack state analysis based on the reference image and the target image by the analysis module to obtain the analysis results of the battery pack includes: The analysis module analyzes the state of multiple components inside the battery pack based on the reference image, the target image, and the preset anomaly judgment logic to determine the target anomaly information and the corresponding target anomaly level of the battery pack. The operating status of the vehicle is obtained, and a target processing plan is determined based on the operating status of the vehicle, the target anomaly information, and the target anomaly level, and used as the analysis result of the battery pack.

[0020] In this way, by combining reference images, target images and preset judgment logic, abnormal information and abnormality levels of internal components of the battery pack can be accurately identified. Then, by matching the corresponding processing solutions with the vehicle's working status, hierarchical judgment and intelligent handling are achieved, improving the accuracy of battery pack abnormality detection and abnormality handling capabilities.

[0021] In one embodiment, before acquiring the reference image of the battery pack through the analysis module, the method further includes: Determine whether the battery pack has historical maintenance images; If the historical maintenance images exist, then the historical maintenance images will be used as reference images for the battery pack; If the historical maintenance image does not exist, the initial factory image of the battery pack will be used as the reference image of the battery pack.

[0022] In this way, by retrieving historical maintenance images or initial images of the battery pack as reference benchmarks, multi-time period image comparison can be achieved, adapting to the detection scenarios of the entire battery pack life cycle, ensuring the reliability of the status analysis basis, and effectively improving the accuracy and applicability of abnormal identification of components in the battery pack.

[0023] In one embodiment, after the analysis module performs battery pack status analysis on the target image to obtain the analysis results of the battery pack and sends them to the battery management module, the method further includes: The battery management module receives the analysis results of the target image sent by the analysis module. The battery management module generates control commands based on the analysis results and sends them to the power distribution control module of the battery pack. The power distribution control module receives the control command and controls the battery module of the battery pack to switch its working state to either a powered-on or powered-off state based on the control command, so as to supply power to or stop supplying power to the vehicle.

[0024] In this way, the battery management module generates control commands based on the analysis results of the target image, and the power distribution control module intelligently switches the power on and off states of the battery module. When an abnormality in the battery pack is detected, the power can be cut off in time to protect the vehicle, realize the automatic handling of battery pack failures, and greatly improve the overall vehicle operation safety.

[0025] Thirdly, embodiments of this application provide an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps: The battery management module of the battery pack triggers a detection command, and the detection command is sent to the image acquisition module of the battery pack. The image acquisition module is controlled to acquire a target image inside the housing based on the detection command, and the target image is sent to the battery management module; The battery management module sends the received target image to the analysis module. The analysis module performs battery pack status analysis on the target image to obtain the analysis results of the battery pack, which are then sent to the battery management module.

[0026] Fourthly, embodiments of this application also provide a computer-readable storage medium storing a computer program or instructions thereon, including a computer program or instructions that, when executed by a processor, implement the steps in any of the battery pack detection methods provided in embodiments of this application.

[0027] The beneficial effects of the embodiments of this application are as follows: In the embodiments of this application, the image acquisition module acquires target images inside the housing based on detection commands and sends them to the battery management module. The battery management module then sends the received target images to the analysis module, which performs battery pack status analysis on the target images to obtain the analysis results, which are then sent back to the battery management module. This allows for timely identification of potential abnormalities and faults in the battery pack, enabling real-time monitoring of the working conditions and operating status of internal components. It eliminates the need to wait for a vehicle malfunction before conducting post-incident inspections, effectively improving the overall detection efficiency of the battery pack and mitigating the safety risks caused by undetected battery abnormalities. This addresses the technical problem of low battery pack detection efficiency and consequently low vehicle safety in related technologies. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a battery pack provided in an embodiment of this application; Figure 2 yes Figure 1 The diagram shows the structure of the battery pack from another angle; Figure 3 yes Figure 1 The diagram shows the structure of the battery pack from another angle; Figure 4 yes Figure 1 The diagram shows the structure of the battery pack from another angle; Figure 5 This is a schematic diagram of a vehicle structure provided in an embodiment of this application; Figure 6 This is a schematic flowchart of a battery pack detection method provided in an embodiment of this application; Figure 7 This is a schematic flowchart of another battery pack detection method provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0030] Explanation of reference numerals in the attached figures: 10. Battery pack; 11. Housing; 111. Base plate; 112. Side plate; 1121. First side plate; 1122. Second side plate; 1123. Third side plate; 1124. Fourth side plate; 113. Divider plate; 114. Receiving cavity; 12. Battery module; 13. Battery management module; 14. Image acquisition module; 15. Power distribution control module; 20. Vehicle. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0032] In the following description, specific embodiments of the invention will be illustrated with reference to steps and symbols performed by one or more computers, unless otherwise stated. Therefore, these steps and operations will be referred to several times as being performed by a computer, and computer execution as referred to herein includes operations by a computer processing unit representing electronic signals of data in a structured format. This operation transforms the data or maintains it at a location in the computer's memory system, which can be reconfigured or otherwise alter the operation of the computer in a manner well known to those skilled in the art. The data structure maintained by the data is the physical location of the memory, which has specific characteristics defined by the data format. However, the principles of the invention described above are not intended to be limiting, and those skilled in the art will understand that many of the steps and operations described below can also be implemented in hardware.

[0033] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when an element is “connected” or “coupled” to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein may include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0034] The following is combined Figures 1 to 8 This application describes the battery pack, the battery pack testing method, the electronic device, and the storage medium.

[0035] According to an embodiment of the first aspect of this application, Figure 1 This is a schematic diagram of a battery pack 10 provided in an embodiment of this application. Please refer to... Figure 1 The battery pack 10 may include: a housing 11, with a receiving cavity 114 formed inside the housing 11; a battery module 12, disposed within the receiving cavity 114, the battery module 12 being used to provide electrical energy; a battery management module 13, disposed within the receiving cavity 114 and arranged along a first direction with the battery module 12, the battery management module 13 being used to send detection commands; and an image acquisition module 14, disposed inside the housing 11, the image acquisition module 14 being communicatively connected to the battery management module 13, the image acquisition module 14 being configured to: receive detection commands sent by the battery management module 13, acquire target images inside the housing 11 based on the detection commands, and send them to the battery management module 13; and the battery management module 13 being configured to: send the received target images to an analysis module, to perform battery pack 10 status analysis on the target images through the analysis module to obtain analysis results of the battery pack 10, and send them to the battery management module 13.

[0036] Among them, the battery management module 13 can be a battery management system (BMS). The battery management system is used to monitor the voltage, current, temperature and other status of the cells in the connected battery module 12 in real time. It can also interact with the image acquisition module 14 to receive detection commands and / or status data (such as images) of the battery pack 10; and send power-on and power-off control commands to the power distribution control module 15.

[0037] In this embodiment, the image acquisition module 14 acquires a target image inside the housing 11 based on a detection command and sends it to the battery management module 13. The battery management module 13 then sends the received target image to the analysis module. The analysis module performs a state analysis of the target image to obtain the analysis results of the battery pack 10, which are then sent back to the battery management module 13. This allows for timely identification of potential abnormalities and faults in the battery pack 10, enabling real-time monitoring of the working conditions and operating status of the internal components of the battery pack 10. It eliminates the need to wait for a malfunction in the vehicle 20 before conducting post-incident inspections, effectively improving the overall detection efficiency of the battery pack 10, avoiding safety risks caused by undetected battery abnormalities, and enhancing the safety of the battery pack 10.

[0038] In some embodiments, such as Figure 2 As shown, the battery pack 10 also includes a power distribution control module 15, which is disposed in the receiving cavity 114 and arranged along the first direction with the battery management module 13. The power distribution control module 15 is communicatively connected to the battery management module 13 and electrically connected to the battery module 12. The power distribution control module 15 is used to control the working status of the battery module 12.

[0039] Among them, the power distribution control module 15 can be a battery energy distribution unit (BDU). The battery energy distribution unit is used to receive control signals from the BMS and control the high voltage circuit of the battery module 12 to be open or short-circuited, thereby controlling the working state of the battery module 12 to be either powered on or powered off. In this embodiment, the power distribution control module 15 establishes a stable communication interaction with the battery management module 13, enabling it to receive various control commands issued by the battery management module 13 in a timely manner. Simultaneously, the power distribution control module 15 forms a reliable electrical connection with the battery module 12, allowing for precise control of the power supply and operating conditions of the battery module 12 based on the control commands. Through their collaborative operation, real-time management and flexible switching of the battery module 12's operating state are achieved. When an abnormality is detected in the battery pack 10, the power supply to the battery module 12 can be promptly cut off, effectively improving the overall operational stability of the battery pack 10 and further enhancing its safety protection capabilities and overall management reliability.

[0040] In some embodiments, the battery management module 13 is further configured to: receive the analysis results of the target image sent by the analysis module, generate control commands based on the analysis results, and send them to the power distribution control module 15; the power distribution control module 15 is further configured to: receive the control commands sent by the battery management module 13, and control the working state of the battery module 12 to switch to a power-on state or a power-off state based on the control commands.

[0041] In this embodiment, the battery management module 13 can intelligently generate appropriate control commands based on the status assessment results output by the analysis module and send them to the power distribution control module 15. The power distribution control module 15 responds quickly to the control commands and switches the power-on or power-off working state of the battery module 12 in real time. It can promptly cut off power to protect the battery pack 10 when potential abnormalities or fault hazards occur, realizing closed-loop protection of the battery pack 10 from status monitoring and intelligent assessment to active management. This achieves the effect of early intervention and intelligent protection of the battery pack 10 in the event of faults, significantly improving the safety management level and abnormality handling efficiency of the battery pack 10 throughout its entire life cycle.

[0042] Optionally, the image acquisition module 14 includes at least one of a camera unit and a blue light unit.

[0043] In one embodiment, the camera unit can capture all-round real-scene images of various components inside the housing 11 of the battery pack 10, and collect high-definition two-dimensional real-scene images in real time. This allows for clear and intuitive recording of the appearance, surface defects, assembly and installation positions, gap changes, and subtle working conditions such as thermal expansion and extrusion deformation of each component.

[0044] In another embodiment, the blue light unit can emit high-precision blue light structured light and form a dedicated detection spectrum to perform full-area scanning and mapping of all components inside the battery pack 10 housing 11; relying on the ranging and texture recognition characteristics of blue light structured light, combined with spectral data analysis, the three-dimensional images and spatial structure models of all components inside the housing 11 are accurately reconstructed, and the three-dimensional dimensions, deformation and relative positional relationships of the components are fully restored.

[0045] This application embodiment acquires images of the interior of the battery pack 10 housing 11 through the collaborative acquisition of an imaging unit and / or a blue light unit. A single acquisition method or a combination of acquisition modes can be flexibly selected according to the actual inspection conditions. For example, a two-dimensional real-scene image can be acquired using the imaging unit to quickly complete the appearance inspection; while for scenarios with insufficient light or requiring precise deformation detection, structured light scanning can be performed using the blue light unit to reconstruct a three-dimensional image. These two acquisition methods complement each other, adapting to the full-scene inspection needs of the battery pack 10, effectively covering inspection dimensions such as component appearance, gaps, and three-dimensional deformation, significantly improving the comprehensiveness of image acquisition, environmental adaptability, and the accuracy and reliability of imaging data.

[0046] In one embodiment, such as Figure 3 and Figure 4As shown, the housing 11 includes a bottom plate 111 and multiple side plates 112. The multiple side plates 112 are sequentially connected along the circumference of the bottom plate 111 to form a receiving cavity 114. A partition plate 113 is provided on one side of the bottom plate 111 corresponding to the receiving cavity 114. The partition plate 113 is used to divide the receiving cavity 114 into a first receiving area and a second receiving area. The first receiving area is used to receive the battery module 12, and the second receiving area is used to receive the functional modules in the battery pack 10 other than the battery module 12.

[0047] In one specific embodiment, the side plate 112 includes a first side plate 1121, a second side plate 1122, a third side plate 1123, and a fourth side plate 1124. The first side plate 1121 and the second side plate 1122 are respectively disposed on opposite sides of the bottom plate 111, and the third side plate 1123 and the fourth side plate 1124 are respectively disposed on the other opposite sides of the bottom plate 111. The first side plate 1121, the second side plate 1122, the third side plate 1123, and the fourth side plate 1124 are sequentially connected along the circumference of the bottom plate 111 to form a receiving cavity 114.

[0048] The partition plate 113 can be an expansion beam, which is fixedly installed on the bottom plate 111 of the battery pack 10 housing 11 and arranged laterally inside the housing 11, dividing the housing 111's accommodating cavity 114 into an independent first accommodating area and a second accommodating area. In this embodiment, the expansion beam not only has the spatial partitioning and isolation functions of a conventional partition plate 113, which can neatly accommodate the battery module 12 and various functional modules, making the internal layout of the housing 11 orderly and compact; at the same time, it also has buffering and deformation adaptation capabilities, which can constrain and buffer the thermal expansion and deformation trend of the battery module 12 during operation, avoid the compressive stress generated by battery expansion, prevent mutual interference and collision damage to adjacent components of the battery module 12, effectively avoid safety hazards such as short circuits and damage caused by battery expansion, and take into account both structural partitioning and safety protection functions.

[0049] In summary, the embodiments of this application divide the interior of the housing 11 into multiple independent storage areas by using the partition plate 113, and arrange the battery module 12 and other functional modules in separate areas, so that the internal layout of the battery pack 10 is orderly. By placing the battery module in an independent storage area, the expansion deformation of the battery module 12 can be limited and buffered, avoiding the safety hazards caused by the expansion of the battery module 12 squeezing other functional modules, and improving the overall structural stability and safety of the battery pack 10.

[0050] According to an embodiment of the second aspect of this application, Figure 6 This is a schematic flowchart illustrating a battery pack detection method provided in an embodiment of this application. Please refer to [link / reference]. Figure 6 The testing method for this communication module can be applied to Figures 1 to 4 As shown in battery pack 10. Figure 6 As shown, the detection method for the battery pack 10 includes the following steps (steps S101 to S104): S101: The detection command is triggered by the battery management module 13 of the battery pack 10 and sent to the image acquisition module 14 of the battery pack 10.

[0051] S102: Control the image acquisition module 14 to acquire the target image inside the housing 11 based on the detection command, and send the target image to the battery management module 13.

[0052] S103: The received target image is sent to the analysis module via the battery management module 13.

[0053] S104: The analysis module performs state analysis on the target image of the battery pack 10, obtains the analysis results of the battery pack 10, and sends them to the battery management module 13.

[0054] In some examples, such as Figure 5 As shown, the detection method for the battery pack 10 provided in this application embodiment can be applied to a vehicle 20, which includes the battery pack 10 as described above. The vehicle 20 can be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc.

[0055] In one embodiment, step S104, "analyzing the target image using the analysis module to obtain the analysis results of the battery pack 10," includes: A reference image of the battery pack 10 is obtained through the analysis module; The battery pack 10 is analyzed based on the reference image and the target image by the analysis module, and the analysis results of the battery pack 10 are obtained.

[0056] For example, the analysis module can be a cloud server configured with an artificial intelligence (AI) model, and the cloud server is equipped with a cloud database; the reference image of the battery pack 10 is pre-stored in the cloud database, and the cloud server can call the reference image in the cloud database to compare it with the collected target image, thereby completing the intelligent analysis and anomaly judgment of the overall status of the battery pack 10.

[0057] In one embodiment, after the cloud server retrieves the reference image of the battery pack 10 from the cloud database, it can perform pixel matching, contour comparison, component position calibration and deformation difference comparison with the target image inside the battery pack 10 housing 11 collected on site. Through artificial intelligence model, image features are extracted, component appearance defects, assembly gaps and expansion deformation are identified, thereby completing the intelligent analysis of the overall operating status of the battery pack 10 and the judgment of fault abnormality level.

[0058] In one specific embodiment, the step "analyzing the state of the battery pack 10 based on the reference image and the target image using an analysis module to obtain the analysis results of the battery pack 10" includes: The analysis module analyzes the state of multiple components inside the housing 11 of the battery pack 10 based on the reference image, the target image, and the preset anomaly judgment logic, so as to determine the target anomaly information and the corresponding target anomaly level of the battery pack 10. The working status of vehicle 20 is obtained, and a target handling plan is determined based on the working status of vehicle 20, target anomaly information, and target anomaly level, which is then used as the analysis result of battery pack 10.

[0059] The preset anomaly judgment logic is a set of rules pre-configured on the cloud server for judging anomalies and anomaly levels of components in the battery pack 10. Specifically, it can include preset anomaly judgment criteria, anomaly level classification rules, and logic execution flow. The preset anomaly judgment criteria can include standard parameters and normal operating thresholds based on the factory specifications of each component of the battery pack 10, preset allowable deviation ranges for characteristic parameters of each component, such as bolt push-twist deflection angle <2°, allowable deviation of single cell expansion in battery module 12 ≤0.5mm, allowable deviation of connector installation position ≤1mm, etc. At the same time, preset anomaly type classifications are included, such as appearance damage, positional displacement, deformation, poor contact, etc.

[0060] In one embodiment, the anomaly classification rule can be divided into multiple levels based on the degree of impact of the anomaly of the battery pack 10 on the operational safety of the battery pack 10. Specifically, it can be divided into three levels: minor anomaly, general anomaly, and severe anomaly. For example, the characteristic parameters of a minor anomaly exceed the allowable deviation range, but do not affect the normal operation of the battery pack 10 and have no safety hazards, such as slight surface scratches, etc.; the characteristic parameters of a general anomaly deviate significantly from the standard, which may affect the operational stability of the battery pack 10 and have potential safety hazards, such as bolt push-twist deflection angle <2°, insulation layer wear, cable ties loosening, slight expansion of battery cells, slight loosening of connectors, etc.; the characteristic parameters of a severe anomaly deviate significantly from the standard, which has affected the normal operation of the battery pack 10 and has clear safety hazards, such as severe expansion of cells in the battery module 12, damaged wiring terminals, foreign metal objects inside the battery pack 10, damaged insulation layer, and unidentified liquid flowing inside the battery pack 10 housing 11, etc.

[0061] In one embodiment, the logic execution flow can be as follows: first, obtain the difference of feature parameters of each component through image comparison, determine whether the difference exceeds the preset allowable range, if it does not exceed the range, it is determined to be normal; if it exceeds the range, combine the difference size and the abnormality type, compare with the abnormality level classification rules, determine the corresponding abnormality level, summarize the abnormality of all components, form the target abnormality information and the target abnormality level, and provide a clear basis for determining the subsequent processing solution.

[0062] In this embodiment, a target handling scheme can be determined based on the operating status of the vehicle 20, the target anomaly information, and the target anomaly level. For example, for a battery pack 10 with a severe anomaly level, when the vehicle 20 is in an off-state, the battery module 12 can be directly controlled to a power-off state; when the vehicle 20 is in an on-state, the vehicle's infotainment system can remind the driver to drive to a safe area and indicate that the battery module 12 will be controlled to a power-off state after a specified time (e.g., 10 minutes). As another example, for a battery pack 10 with a severe anomaly level, the BMS can lock the power to allow the battery pack 10 to operate in a low-power state, while the vehicle's infotainment system displays a prompt message to remind the driver that the battery pack 10 has detected an anomaly and should be taken to a repair shop immediately.

[0063] For example, please see Figure 7 In this embodiment, the BMS is communicatively connected to the image acquisition module 14, the BDU, the cloud server, and the vehicle maintenance interface. The cloud server is also communicatively connected to the terminal after-sales service to send the analysis results to the terminal after-sales service. The terminal after-sales service can contact the vehicle owner in advance to formulate a repair plan based on the analysis results. The BMS can periodically send detection commands to the image acquisition module 14 to control the image acquisition module 14 to capture and scan the target image to reflect the status of the internal components of the battery pack 10. The target image is then sent to the cloud server through the BMS and the vehicle maintenance interface for battery pack 10 status analysis, thereby obtaining the analysis results of the target image. Specifically, the cloud server synchronously acquires the target image inside the battery pack 10 housing 11 transmitted by the image acquisition module 14 through the communication link. At the same time, it retrieves the reference image corresponding to the battery pack 10 from the cloud database. If a historical maintenance image exists, the latest historical maintenance image is retrieved; otherwise, the initial factory image is retrieved. Subsequently, the cloud server starts an artificial intelligence model and, combined with preset anomaly judgment logic, performs multi-dimensional comparison and analysis of the target image and the reference image. During the comparative analysis, the artificial intelligence model extracts the feature parameters of each component in the reference image and the target image. The feature parameters may include appearance outline, size specifications, installation position, surface texture, etc. The difference between the feature parameters of the two is calculated and the matching degree is analyzed. Combined with the preset anomaly judgment logic, it is determined whether each component has anomalies, the type of anomaly and the severity of the anomaly. Finally, the target anomaly information of battery pack 10 and the corresponding target anomaly level are summarized and determined.

[0064] Meanwhile, the cloud server communicates with the vehicle 20 control system to obtain the current working status of the vehicle 20, such as driving status, stationary status, charging status, idling status, etc. Then, combined with the current working status of the vehicle 20, the identified target abnormal information (such as battery cell swelling, loose connectors, damaged terminals, etc.) and the target abnormality level (such as mild abnormality, general abnormality, severe abnormality), it matches the preset processing solution library to determine the appropriate target processing solution. This target processing solution is the final analysis result of the battery pack 10 and is simultaneously sent to the battery management module 13 to provide a basis for subsequent control actions.

[0065] In summary, this application embodiment combines reference images, target images, and preset judgment logic to accurately identify abnormal information and abnormality levels of internal components of the battery pack 10. Then, it matches the corresponding processing scheme with the working status of the vehicle 20, realizing hierarchical judgment and intelligent handling, and improving the accuracy of abnormality detection and abnormality handling capabilities of the battery pack 10.

[0066] Furthermore, prior to the step of "obtaining a reference image of the battery pack 10 through the analysis module", the method also includes: Determine if battery pack 10 has historical maintenance images; If historical maintenance images exist, they will be used as reference images for battery pack 10. If no historical maintenance images are available, the initial factory image of battery pack 10 will be used as the reference image for battery pack 10.

[0067] The initial image can be the initial image of the battery pack 10 at the time of its manufacture. This refers to the standard image captured and stored by the image acquisition module 14 of each component inside the battery pack 11 after the battery pack 10 has completed all assembly processes and passed factory inspection. This standard image fully records the initial appearance, installation position, dimensions, and surface condition of each component inside the battery pack 10's casing 11. It serves as the baseline image of the battery pack 10 in a brand-new, qualified state, and its corresponding component parameters are the factory standard parameters. The historical maintenance image refers to the post-maintenance status image captured and stored by maintenance personnel using the image acquisition module 14 after regular maintenance and fault repair during subsequent use of the battery pack 10. This post-maintenance status image records the actual state of each component of the battery pack 10 after maintenance, reflecting the current baseline state of the battery pack 10 after use and maintenance. Its corresponding component parameters are the actual parameters after passing maintenance.

[0068] On the one hand, since the battery pack 10 undergoes normal wear and tear, slight deformation, and other non-fault-related changes during use, relying solely on the initial factory images as the only reference could lead to misjudging these normal wear and tear as abnormalities, resulting in unnecessary control actions. On the other hand, if the battery pack 10 has undergone maintenance, some components may have been replaced or adjusted, and its state may differ reasonably from its initial factory state. In this case, using the latest historical maintenance images as a reference is necessary to accurately determine the state changes of the battery pack 10 after maintenance, avoiding missed or incorrect anomaly detections due to discrepancies between the reference standard and the actual baseline. Therefore, this embodiment of the application sets two different reference standards to adapt to the state changes of the battery pack 10 throughout its entire lifecycle, ensuring that the reference baseline matches the current lifecycle stage of the battery pack 10. This ensures the accuracy and applicability of state analysis, the accuracy and rationality of anomaly analysis, and avoids misjudgments caused by a single reference standard.

[0069] In one embodiment, after the step of "analyzing the target image using the analysis module to obtain the analysis results of the battery pack 10, and sending them to the battery management module 13", the method further includes: The battery management module 13 receives the analysis results of the target image sent by the analysis module; The battery management module 13 generates control commands based on the analysis results and sends them to the power distribution control module 15 of the battery pack 10. The power distribution control module 15 receives control commands and controls the working state of the battery module 12 of the battery pack 10 to switch to a powered-on state or a powered-off state based on the control commands, so as to provide power to the vehicle 20 or stop the power supply.

[0070] In this embodiment, a power-off control command can be generated based on the analysis results. The power distribution control module 15 receives the power-off control command and controls the working state of the battery module 12 of the battery pack 10 to switch to a power-off state based on the power-off control command, so as to stop supplying power to the vehicle 20.

[0071] In summary, this embodiment of the application generates control commands based on the analysis results of the target image through the battery management module 13, and then sends them to the power distribution control module 15. The power distribution control module 15 intelligently switches the power on / off state of the battery module 12 according to the control commands. It can promptly cut off the power to protect the vehicle 20 when an abnormality is detected in the battery pack 10, realize the automatic handling of battery pack 10 failures, and greatly improve the overall vehicle operation safety.

[0072] According to the embodiment of the third aspect of this application, Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 8 The dashed line in the text indicates that the unit or module is optional. Figure 8The electronic device 300 can be used to implement the methods described in the above method embodiments. The electronic device 300 can be a chip, a terminal device, or a first server.

[0073] Electronic device 300 may include one or more processors 310. The processor 310 can support the electronic device 300 in implementing the methods described in the preceding method embodiments. The processor 310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a Central Processing Unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0074] The electronic device 300 may also include one or more memories 320. Computer programs are stored on the memories 320. The memories 320 may be independent of the processor 310 or integrated into the processor 310.

[0075] The electronic device 300 may also include a transceiver 330. The processor 310 can communicate with other devices or chips via the transceiver 330. For example, the processor 310 can send and receive data with other devices or chips via the transceiver 330.

[0076] The computer program in memory 320 can be executed by processor 310, causing processor 310 to perform the following steps: The detection command is triggered by the battery management module 13 of the battery pack 10 and sent to the image acquisition module 14 of the battery pack 10. The image acquisition module 14 acquires the target image inside the housing 11 based on the detection command and sends the target image to the battery management module 13; The received target image is sent to the analysis module via the battery management module 13; The analysis module performs state analysis on the target image of battery pack 10, obtains the analysis results of battery pack 10, and sends them to battery management module 13.

[0077] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0078] Therefore, embodiments of this application provide a computer-readable storage medium storing a computer program thereon. The computer program is loaded by a processor to execute the steps described in the above-described method embodiments of this application. For example, the computer program loaded by the processor can execute the following steps: The detection command is triggered by the battery management module 13 of the battery pack 10 and sent to the image acquisition module 14 of the battery pack 10. The image acquisition module 14 acquires the target image inside the housing 11 based on the detection command and sends the target image to the battery management module 13; The received target image is sent to the analysis module via the battery management module 13; The analysis module performs state analysis on the target image of battery pack 10, obtains the analysis results of battery pack 10, and sends them to battery management module 13.

[0079] For details on the implementation of each of the above operations / steps, please refer to the previous examples, which will not be repeated here.

[0080] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0081] Since the computer program stored in the computer-readable storage medium can execute the steps in any of the above method embodiments provided in the embodiments of this application, the beneficial effects that the methods described in any of the above method embodiments can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0082] This application also provides a computer program product or computer program that includes computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform the methods provided in the various optional implementations of the above embodiments.

[0083] The battery pack, battery pack detection method, electronic device, and storage medium provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A battery pack (10), characterized in that, include: The box (11) has a receiving cavity (114) formed inside it. A battery module (12) is disposed in the receiving cavity (114) and is used to provide electrical energy; A battery management module (13) is disposed in the receiving cavity (114) and arranged along the first direction with the battery module (12). The battery management module (13) is used to send detection commands. Image acquisition module (14), the image acquisition module (14) is disposed inside the housing (11), the image acquisition module (14) is communicatively connected to the battery management module (13), the image acquisition module (14) is configured to: receive the detection command sent by the battery management module (13), acquire the target image inside the housing (11) based on the detection command and send it to the battery management module (13). The battery management module (13) is configured to send the received target image to the analysis module, so that the analysis module can perform battery pack (10) status analysis on the target image to obtain the analysis result of the battery pack (10), and send it to the battery management module (13).

2. The battery pack (10) according to claim 1, characterized in that, The battery pack (10) further includes a power distribution control module (15), which is disposed in the receiving cavity (114) and arranged along the first direction with the battery management module (13); The power distribution control module (15) is communicatively connected to the battery management module (13), and the power distribution control module (15) is electrically connected to the battery module (12). The power distribution control module (15) is used to control the working state of the battery module (12).

3. The battery pack (10) according to claim 2, characterized in that, The battery management module (13) is also configured to: receive the analysis results of the target image sent by the analysis module, generate control commands based on the analysis results and send them to the power distribution control module (15). The power distribution control module (15) is also configured to receive control commands sent by the battery management module (13) to control the working state of the battery module (12) to switch to a power-on state or a power-off state based on the control commands.

4. The battery pack (10) according to claim 1, characterized in that, The image acquisition module (14) includes at least one of a camera unit and a blue light unit.

5. The battery pack (10) according to claim 1, characterized in that, The housing (11) includes a bottom plate (111) and multiple side plates (112). The multiple side plates (112) are connected in sequence along the circumference of the bottom plate (111) to form a receiving cavity (114). A partition plate (113) is provided on one side of the bottom plate (111) corresponding to the receiving cavity (114). The partition plate (113) is used to divide the receiving cavity (114) into a first receiving area and a second receiving area. The first receiving area is used to receive the battery module (12), and the second receiving area is used to receive the functional modules in the battery pack (10) other than the battery module (12).

6. A method for detecting a battery pack (10), characterized in that, Applied to a vehicle (20), the vehicle (20) including a battery pack (10) as described in any one of claims 1 to 5, the method includes: The detection command is triggered by the battery management module (13) of the battery pack (10) and the detection command is sent to the image acquisition module (14) of the battery pack (10). The image acquisition module (14) is controlled to acquire the target image inside the box (11) based on the detection command, and the target image is sent to the battery management module (13). The received target image is sent to the analysis module through the battery management module (13); The analysis module performs battery pack (10) status analysis on the target image to obtain the analysis results of the battery pack (10) and sends them to the battery management module (13).

7. The method according to claim 6, characterized in that, The step of performing battery pack (10) status analysis on the target image through the analysis module to obtain the analysis results of the battery pack (10) includes: The analysis module obtains a reference image of the battery pack (10); The analysis module performs state analysis of the battery pack (10) based on the reference image and the target image to obtain the analysis results of the battery pack (10).

8. The method according to claim 7, characterized in that, The step of performing state analysis of the battery pack (10) based on the reference image and the target image by the analysis module to obtain the analysis results of the battery pack (10) includes: The analysis module analyzes the state of multiple components inside the housing (11) of the battery pack (10) based on the reference image, the target image, and the preset anomaly judgment logic to determine the target anomaly information and the corresponding target anomaly level of the battery pack (10). The working status of the vehicle (20) is obtained, and a target processing plan is determined based on the working status of the vehicle (20), the target anomaly information and the target anomaly level, and used as the analysis result of the battery pack (10).

9. The method according to claim 7, characterized in that, Before obtaining a reference image of the battery pack (10) through the analysis module, the method further includes: Determine whether the battery pack (10) has historical maintenance images; If the historical maintenance image exists, the historical maintenance image shall be used as a reference image of the battery pack (10); If the historical maintenance image does not exist, the initial factory image of the battery pack (10) shall be used as the reference image of the battery pack (10).

10. The method according to claim 6, characterized in that, After the analysis module performs battery pack (10) status analysis on the target image, obtains the analysis results of the battery pack (10), and sends them to the battery management module (13), the method further includes: The battery management module (13) receives the analysis results of the target image sent by the analysis module; The battery management module (13) generates control commands based on the analysis results and sends them to the power distribution control module (15) of the battery pack (10). The power distribution control module (15) receives the control command and controls the working state of the battery module (12) of the battery pack (10) to switch to a powered-on state or a powered-off state based on the control command, so as to supply power to the vehicle (20) or stop supplying power.

11. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores computer programs or instructions, and when the computer programs or instructions are executed by the processor, the processor causes the processor to perform the following steps: The detection command is triggered by the battery management module (13) of the battery pack (10) and the detection command is sent to the image acquisition module (14) of the battery pack (10). The image acquisition module (14) is controlled to acquire a target image inside the battery pack housing (11) based on the detection command, and the target image is sent to the battery management module (13). The received target image is sent to the analysis module through the battery management module (13); The analysis module performs battery pack (10) status analysis on the target image to obtain the analysis results of the battery pack (10) and sends them to the battery management module (13).

12. A computer-readable storage medium, characterized in that, It stores a computer program or instructions that, when executed by a processor, implement the steps in the detection method of the battery pack (10) as described in any one of claims 6 to 10.

Images