Display method, device and equipment of battery pack structure

Abstract

This invention provides a method, apparatus, and device for displaying battery pack structures, relating to the field of new energy technology. The method includes: a display device acquiring a battery pack simulation model, the battery pack simulation model including: a cell model, a target conductive object model, and a battery pack shell model, the cell models and the target conductive object model being located inside the battery pack shell model, and the cell models being connected through the target conductive object models. The display device determines detection information between pairs of models in the battery pack simulation model to obtain multiple model detection information, including: the distance between pairs of models, and / or, the pressure between pairs of models. The display device generates target information based on the multiple model detection information and the battery pack simulation model, the target information reflecting the connection relationships between the models. The target information is then displayed. This solves the problem that engineers cannot accurately determine the connection relationships between components.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, and specifically to a method, device, and equipment for displaying battery pack structures. Background Technology

[0002] With the development of science and technology, the popularity of new energy vehicles (electric vehicles, range-extended electric vehicles, hybrid vehicles, etc.) is increasing. New energy vehicles can use unconventional vehicle fuels as their power source. Taking electric vehicles as an example, electric vehicles are equipped with batteries that provide power. In the event of a collision involving a new energy vehicle (such as an electric vehicle), the battery may be compressed, potentially causing a short circuit.

[0003] Currently, after a car collision, engineers need to observe the connections between vehicle components to determine if there is a risk of short circuits. However, due to the large number of components inside a car and their complex connections, engineers cannot accurately determine the connections between components, thus making it impossible to ascertain whether there is a risk of short circuits. Summary of the Invention

[0004] One of the objectives of this invention is to provide a display method, apparatus, and device for a battery pack structure, in order to solve the problem that engineers cannot accurately determine the connection relationship between components, thereby making it impossible to determine whether there is a risk of short circuit.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A method for displaying a battery pack structure includes: acquiring a battery pack simulation model, which comprises: a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. The method determines detection information between each pair of models in the battery pack simulation model to obtain multiple model detection information, including: the distance between each pair of models, and / or, the pressure between each pair of models. Based on the multiple model detection information and the battery pack simulation model, target information is generated, which reflects the connection relationships between the models. The target information is then displayed.

[0007] According to the aforementioned technical means, the display device can acquire a battery pack simulation model, which includes: a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. The display device can then determine the detection information between each pair of models in the battery pack simulation model to obtain multiple model detection information, including: the distance between each pair of models, and / or, the pressure between each pair of models. Based on the multiple model detection information and the battery pack simulation model, the display device can generate target information reflecting the connection relationships between the models. In this way, the display device determines the distance and / or pressure between models through multiple model detection information, thus determining the connection relationships between the models. The display device then displays the connection relationships between the models, facilitating engineers to determine whether there is a short-circuit risk.

[0008] Furthermore, each model in the battery pack simulation model is transformed into a target circuit element, which includes: cell elements, target conductive object elements, and battery pack casing elements. Based on the detection information of multiple models, the connection relationships between each pair of models in the battery pack simulation model are determined, including short-circuit connection state and unconnected state. Based on the target circuit elements and the connection relationships between each pair of models in the battery pack simulation model, a simplified circuit diagram is generated.

[0009] Based on the aforementioned technical means, the display device transforms each model in the battery pack simulation model into target circuit elements, including: cell elements, target conductive object elements, and battery pack casing elements. Then, based on detection information from multiple models, the display device determines the connection relationships between pairs of models in the battery pack simulation model, including short-circuit connection states and unconnected states. This facilitates the identification of which models might be in a short-circuit connection state, potentially causing a short circuit. Next, based on the target circuit elements and the connection relationships between pairs of models in the battery pack simulation model, the display device generates a simplified circuit diagram. This allows engineers to easily identify areas with short-circuit risk using the simplified circuit diagram, improving the efficiency and accuracy of short-circuit location identification.

[0010] Furthermore, for each model detection information, the connection relationship between each pair of models in the battery pack simulation model is determined according to the first operation; the first operation includes: if the distance between the first model and the second model is less than or equal to a preset distance threshold, then it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model. If the distance between the first model and the second model is greater than the preset distance threshold, then it is determined that the first model and the second model are in a disconnected state.

[0011] According to the aforementioned technical means, when the distance between two models is less than or equal to a preset distance threshold, it indicates that the two models have made contact and are in a short-circuit connection state. When the distance between the two models is greater than the preset distance threshold, it indicates that the two models are not in complete contact and are in a disconnected state.

[0012] Furthermore, for each model detection information, the connection relationship between each pair of models in the battery pack simulation model is determined according to the second operation; the second operation includes: if the pressure between the first model and the second model is greater than or equal to a preset pressure threshold, then it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model. If the pressure between the first model and the second model is less than the preset pressure threshold, then it is determined that the first model and the second model are in a disconnected state.

[0013] According to the above technical means, when the pressure between two models is greater than or equal to a preset pressure threshold, it indicates that there is pressure (i.e., contact force) between the two models, meaning that the two models are in complete contact and are in a short-circuit connection state. When the pressure between the two models is less than the preset pressure threshold, it indicates that the pressure between the two models is relatively small, and the two models are not in complete contact and are in a non-connected state.

[0014] Furthermore, the battery pack simulation model also includes multiple detection units, positioned between each pair of models within the battery pack simulation model. These detection units are used to detect the distance and / or pressure between two models. The detection information between each pair of models in the battery pack simulation model is determined through these detection units.

[0015] Based on the aforementioned technical means, the battery pack simulation model includes multiple detection units. These detection units are positioned between each pair of models within the battery pack simulation model, and are used to detect the distance and / or pressure between the two models. The display device can determine the detection information between each pair of models within the battery pack simulation model through these detection units. In this way, the display device can determine whether there is a short circuit between each pair of models based on the detection information, avoiding errors caused by human judgment and improving accuracy.

[0016] A display device with a battery pack structure, the device comprising:

[0017] The acquisition unit acquires a battery pack simulation model, which includes a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. The processing unit determines the detection information between each pair of models in the battery pack simulation model to acquire multiple model detection information, including the distance between each pair of models and / or the pressure between each pair of models. The processing unit also generates target information based on the multiple model detection information and the battery pack simulation model. The target information reflects the connection relationships between the models. The display unit displays the target information.

[0018] Furthermore, the processing unit is also used to convert each model in the battery pack simulation model into target circuit elements, including: cell elements, target conductive object elements, and battery pack casing elements. The processing unit is also used to determine the connection relationships between pairs of models in the battery pack simulation model based on multiple model detection information, including: short-circuit connection state and unconnected state. The processing unit is also used to generate a simplified circuit diagram based on the target circuit elements and the connection relationships between pairs of models in the battery pack simulation model.

[0019] Furthermore, the processing unit is also used to determine the connection relationship between pairs of models in the battery pack simulation model for each model detection information, according to the first operation; the first operation includes: if the distance between the first model and the second model is less than or equal to a preset distance threshold, then it is determined that the first model and the second model are in a short-circuit connection state, where both the first model and the second model are models in the battery pack simulation model. If the distance between the first model and the second model is greater than the preset distance threshold, then it is determined that the first model and the second model are in a disconnected state.

[0020] Furthermore, the processing unit is also used to determine the connection relationship between each pair of models in the battery pack simulation model based on the second operation for each model detection information; the second operation includes: if the pressure between the first model and the second model is greater than or equal to a preset pressure threshold, then it is determined that the first model and the second model are in a short-circuit connection state, where both the first model and the second model are models in the battery pack simulation model. If the pressure between the first model and the second model is less than the preset pressure threshold, then it is determined that the first model and the second model are in a non-connected state.

[0021] Furthermore, the battery pack simulation model also includes: multiple detection units positioned between each pair of models within the battery pack simulation model; these detection units are used to detect the distance and / or pressure between two models. A processing unit is also used to determine the detection information between each pair of models within the battery pack simulation model based on the detection units.

[0022] A computer-readable storage medium, wherein when computer-executable instructions stored in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is capable of performing any of the display methods of the battery pack structure described above.

[0023] An electronic device includes: a processor; and a memory for storing processor-executable instructions. The processor is configured to execute instructions to implement any one of the display methods described above for a battery pack structure.

[0024] An automobile includes: a processor; and a memory for storing processor-executable instructions. The processor is configured to execute instructions to implement any of the methods described above for displaying a battery pack structure.

[0025] A vehicle includes means for performing a display method of a battery pack structure.

[0026] The beneficial effects of this invention are:

[0027] According to the aforementioned technical means, the display device can acquire a battery pack simulation model, which includes: a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. The display device can then determine the detection information between each pair of models in the battery pack simulation model to obtain multiple model detection information, including: the distance between each pair of models, and / or, the pressure between each pair of models. Based on the multiple model detection information and the battery pack simulation model, the display device can generate target information reflecting the connection relationships between the models. In this way, the display device determines the distance and / or pressure between models through multiple model detection information, thus determining the connection relationships between the models. The display device then displays the connection relationships between the models, facilitating engineers to determine whether there is a short-circuit risk. Attached Figure Description

[0028] Figure 1 A schematic flowchart illustrating a display method for a battery pack structure provided by the present invention;

[0029] Figure 2 This is a schematic diagram illustrating an example of a battery pack structure provided by the present invention;

[0030] Figure 3 This is a schematic diagram illustrating another example of a battery pack structure provided by the present invention;

[0031] Figure 4 This is a schematic diagram illustrating another example of a battery pack structure provided by the present invention;

[0032] Figure 5A flowchart illustrating another method for displaying a battery pack structure provided by the present invention;

[0033] Figure 6 This is a schematic diagram illustrating another example of a battery pack structure provided by the present invention;

[0034] Figure 7 A flowchart illustrating another method for displaying a battery pack structure provided by the present invention;

[0035] Figure 8 This is a schematic diagram of a display device with a battery pack structure provided by the present invention;

[0036] Figure 9 This is a schematic diagram of a display device with another battery pack structure provided by the present invention. Detailed Implementation

[0037] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention and not for limiting the scope of protection of the present invention.

[0038] In this article, the character " / " generally indicates that the objects before and after it are in an "or" relationship. For example, A / B can be understood as A or B.

[0039] The terms "first" and "second" in the specification and claims of this invention are used to distinguish different objects, rather than to describe a specific order of objects.

[0040] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or modules is not limited to the steps or modules listed, but may optionally include other steps or modules not listed, or may optionally include other steps or modules inherent to such processes, methods, products, or apparatus.

[0041] Furthermore, in embodiments of the present invention, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the terms "exemplary" or "for example" is intended to present concepts in a specific manner.

[0042] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0043] First, the application scenarios of the embodiments of this application will be introduced.

[0044] With the development of science and technology, the popularity of new energy vehicles (electric vehicles, range-extended electric vehicles, hybrid vehicles, etc.) is increasing. New energy vehicles can use unconventional vehicle fuels as their power source. Taking electric vehicles as an example, electric vehicles are equipped with batteries that provide power. In the event of a collision involving a new energy vehicle (such as an electric vehicle), the battery may be compressed, potentially causing a short circuit.

[0045] Specifically, automotive battery packs are prone to short-circuit risks when subjected to collisions and compression. There are two main short-circuit modes: one is an internal short circuit caused by external force penetrating the cell, leading to rupture of the separator and contact between the internal positive and negative electrode materials. The other is an external short circuit caused by the failure of the entire circuit insulation, resulting in some cells forming external short circuits. Because the external circuit is long and involves many components, the mode of external short circuits caused by contact between components under large deformation conditions is not easily judged by engineers during collision simulation analysis, potentially leading to misjudgments or missed short circuits. Therefore, clearly demonstrating the short-circuit relationships during collision analysis has become a pressing technical problem.

[0046] To address the aforementioned problems, this application provides a method for displaying a battery pack structure. In this method, a display device acquires a battery pack simulation model, which includes: a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. The display device determines detection information between each pair of models in the battery pack simulation model to acquire multiple model detection information, including: the distance between each pair of models, and / or, the pressure between each pair of models. The display device generates target information based on the multiple model detection information and the battery pack simulation model. The target information reflects the connection relationships between the models. The display device displays the target information. In this way, after acquiring the battery pack simulation model, the display device can determine multiple model detection information to determine the distance and / or pressure between the models, thereby determining the connection relationships between them. Then, the display device displays the connection relationships between the models, facilitating engineers to determine whether there is a short-circuit risk.

[0047] The execution entity of the battery pack structure display method provided in this application can be a battery pack structure display device, which can be a vehicle. Alternatively, the battery pack structure display device can be the vehicle's central processing unit (CPU) or a display module in the vehicle used to determine the battery pack structure. Or, the battery pack structure display device can be an electronic device. This application embodiment uses the execution of the battery pack structure display method by a display device as an example to illustrate the battery pack structure display method provided in this application embodiment.

[0048] Electronic devices can include terminals and servers. A terminal can be a device with transceiver capabilities. Terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water (such as ships); and they can be deployed in the air (e.g., on airplanes, balloons, and satellites). Terminals include handheld devices, vehicle-mounted devices, wearable devices, or computing devices with wireless communication capabilities. For example, a terminal can be a mobile phone, a tablet computer, or a computer with wireless transceiver capabilities. Terminal devices can also be virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in autonomous driving, wireless terminals in telemedicine, wireless terminals in smart grids, wireless terminals in smart cities, wireless terminals in smart homes, etc.

[0049] It should be noted that the server can be a single physical server, or a server cluster consisting of multiple servers. Alternatively, the server cluster can be a distributed cluster. Alternatively, the server can be a cloud server. This application does not limit the specific implementation of the server.

[0050] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0051] like Figure 1 The image shows a method for displaying a battery pack structure according to an embodiment of this application. The method includes:

[0052] S101, The display device obtains the battery pack simulation model.

[0053] The battery pack simulation model includes: a cell model, a target conductive object model, and a battery pack casing model. The cell model and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object model.

[0054] Optionally, the battery pack housing model includes: a top cover model and a housing model.

[0055] In other words, the top cover model and the box model can constitute the battery pack outer shell model.

[0056] In one possible implementation, the display device can establish a battery cell model, a target conductive object model, a top cover model, and a housing model.

[0057] It should be noted that, in this embodiment, the number of cell models is at least one, and multiple cell models can constitute a cell group model. Two cell models can be connected through a target conductive object model. This embodiment does not limit the target conductive object model. For example, the target conductive object model can be an aluminum busbar model.

[0058] In one possible design, the display device can acquire battery pack data, which includes: the size, thickness, structural shape, and position data of multiple components in the battery pack, as well as the size, thickness, structural shape, and position data of each part that makes up the battery cell. The display device then inputs the battery pack data into a simulation model to obtain a battery pack simulation model.

[0059] It should be noted that the embodiments of this application do not limit the format of the battery pack data. For example, the battery pack data can be in the form of textual description information, or data generated by software such as CATIA, UG (Unigraphics NX), or SOLIDWORKS. The embodiments of this application also do not limit the simulation model. For example, the simulation model can be a mesh model for finite element simulation analysis.

[0060] In some embodiments, the display device may create a simplified cell model, which includes a cell outline. The display device then receives a simulation operation from a user to create a simulation model of a target area of ​​the battery pack. In response to the simulation operation, a cell model is created, which serves as the simulation model.

[0061] In this embodiment, the cell model is a simulation model of the target region within the cell, which is the collision deformation region. Simplified models are used for other regions of the cell besides the target region (i.e., simplified models are used to represent other non-deformable regions of the cell).

[0062] It should be noted that simplified models cannot accurately reflect the structure of a battery cell. When simulating deformation, they cannot accurately reflect the mechanical properties of the cell; they only serve as counterweights and placeholders. Therefore, they can only be used in non-deformable regions in simulation analysis. For example, a cuboid mesh model can represent multiple adjacent battery cells, with the outer contour of the cuboid mesh model matching the outer contours of the adjacent cells. A simulation model that fully references the battery cell's structure, with a dedicated mesh model for each cell and corresponding mesh models for each component, more realistically reflects the cell's structure. When simulating deformation, it can accurately reflect the cell's mechanical properties and is used in deformable regions in simulation analysis.

[0063] The following section introduces a battery pack simulation model using specific examples. For instance, such as... Figure 2 As shown, the aluminum busbar model includes aluminum busbar model 2-1 between the simplified cell model 5 and cell 1-1, aluminum busbar model 2-2 between cell 1-1 and cell 1-2, aluminum busbar model 2-3 between cell 1-2 and cell 1-3, and aluminum busbar model 2-4 between cell 1-3 and the simplified cell model 5. Cells 1-1, 1-2, and 1-3 are connected in series by aluminum busbar model 2. Distance detection unit 6-8 and contact force detection unit 7-8 are arranged between aluminum busbar 2-1 and the upper cover 4; distance detection unit 6-9 and contact force detection unit 7-9 are arranged between aluminum busbar 2-2 and the upper cover 4; distance detection unit 6-10 and contact force detection unit 7-10 are arranged between aluminum busbar 2-3 and the upper cover 4; and distance detection unit 6-11 and contact force detection unit 7-11 are arranged between aluminum busbar 2-4 and the upper cover 4.

[0064] For example, such as Figure 3 As shown, distance detection unit 6-6 and contact force detection unit 7-6 are arranged between aluminum busbar 2-2 and housing 3, and distance detection unit 6-7 and contact force detection unit 7-7 are arranged between aluminum busbar 2-4 and housing 3. The non-deformable area cells are represented by a simplified model 5.

[0065] For example, such as Figure 4 As shown, distance detection unit 6-1 and contact force detection unit 7-1 are arranged between aluminum bars 2-1 and 2-2, distance detection unit 6-2 and contact force detection unit 7-2 are arranged between aluminum bars 2-1 and 2-3, distance detection unit 6-3 and contact force detection unit 7-3 are arranged between aluminum bars 2-2 and 2-3, distance detection unit 6-4 and contact force detection unit 7-4 are arranged between aluminum bars 2-2 and 2-4, and distance detection unit 6-5 and contact force detection unit 7-5 are arranged between aluminum bars 2-3 and 2-4.

[0066] S102, The display device determines the detection information between pairs of models in the battery pack simulation model to obtain multiple model detection information.

[0067] The detection information includes: the distance between pairs of models, and / or the pressure between pairs of models.

[0068] In other words, the detection information can include: the distance between any two models. Alternatively, the detection information can include: the pressure between any two models. Or, the detection information can include both the distance between any two models and the pressure between any two models.

[0069] In one possible implementation, the display device can acquire the position information of each model in the battery pack simulation model. Then, the display device can determine the distance between any two models based on the position information of each model.

[0070] In another possible implementation, a solver is deployed within the display device. The solver can then submit the battery pack simulation model to the solver for computation, yielding multiple model detection results.

[0071] It should be noted that the solver's function is to perform numerical simulations, including simulations of force, electricity, heat, and fluid dynamics. This application does not limit the solver used in its embodiments. For example, the solver can be Ls-Dyna, RADIOSS, ABAQUS, etc. Model verification information can be binout files, T files, odb files, etc.

[0072] In another possible implementation, the battery pack simulation model further includes multiple detection units positioned between each pair of models within the battery pack simulation model. These detection units are used to detect the distance and / or pressure between two models. The display device can determine the detection information between each pair of models within the battery pack simulation model through these detection units.

[0073] For example, the detection unit can be located between adjacent aluminum busbar models, between an aluminum busbar model and a box model, or between an aluminum busbar model and a top cover model.

[0074] Understandably, the battery pack simulation model includes multiple detection units positioned between each pair of models within the model. These units detect the distance and / or pressure between the two models. The display device can determine the detection information between each pair of models within the battery pack simulation model through these detection units. This allows the display device to determine whether a pair of models is in a short-circuit connection state, avoiding errors caused by human judgment and improving accuracy.

[0075] S103. The display device generates target information based on multiple model detection information and the battery pack simulation model.

[0076] The target information is used to reflect the connection relationships between models.

[0077] In one possible implementation, the target information is a simplified circuit diagram. The display device determines the connection relationships between pairs of models based on the distance and / or pressure between them. The display device can generate a simplified circuit diagram based on the individual models and the connection relationships between them in the battery pack simulation model.

[0078] Optionally, the target information is a prompt message, which is used to indicate the pairwise models that are in a short-circuit connection state. The prompt message includes the model identifier of the pairwise models that are in a short-circuit connection state.

[0079] For example, the target information could be: aluminum busbar model a is connected to aluminum busbar model b, aluminum busbar model a is connected to the top cover model, and aluminum busbar model b is not connected to the top cover model.

[0080] Optionally, the target information is a simulation model of the target area of ​​the battery pack model.

[0081] In one possible design, the target information is specifically used to reflect the connectivity between models where short circuits exist.

[0082] S104. The display device displays the target information.

[0083] In one possible implementation, the display device can display target information through an automatic visualization program.

[0084] For example, the target information is a simplified circuit diagram of the area where the short circuit occurs.

[0085] For example, this automated visualization program can be built based on MATLAB code.

[0086] Based on the above technical solution, the display device can acquire a battery pack simulation model, which includes: a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. The display device can then determine the detection information between each pair of models in the battery pack simulation model to obtain multiple model detection information, including: the distance between each pair of models, and / or, the pressure between each pair of models. Based on the multiple model detection information and the battery pack simulation model, the display device can generate target information reflecting the connection relationships between the models. In this way, the display device determines the distance and / or pressure between models through multiple model detection information, thus determining the connection relationships between the models. The display device then displays the connection relationships between the models, facilitating engineers to determine whether there is a short-circuit risk.

[0087] like Figure 5 The image shows another method for displaying a battery pack structure provided in an embodiment of this application. In this method, step S103 may include:

[0088] S501, The display device converts each model in the battery pack simulation model into a target circuit element.

[0089] The target circuit elements include: cell elements, target conductive object elements, and battery pack casing elements.

[0090] In one possible implementation, the display device stores multiple preset circuit elements, identifiers, and preset circuit elements. The display device can acquire the identifiers of the cell model, the target conductive object model, and the battery pack casing model. Then, the display device can determine the cell elements based on the identifiers of the cell model, the target conductive object elements based on the identifiers of the target conductive object model, and the battery pack casing elements based on the identifiers of the battery pack casing model.

[0091] S502. The display device determines the connection relationship between pairs of models in the battery pack simulation model based on the detection information of multiple models.

[0092] The connection relationships include: short-circuit connection state and no connection state.

[0093] In one possible implementation, for each model detection information, the display device can determine the connection relationship between pairs of models in the battery pack simulation model based on a first operation. The first operation includes: the display device comparing a preset distance threshold with the distance between the first model and the second model. If the distance between the first model and the second model is less than or equal to the preset distance threshold, the display device determines that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model. If the distance between the first model and the second model is greater than the preset distance threshold, the display device determines that the first model and the second model are in a disconnected state.

[0094] It should be noted that the preset distance threshold is not limited in the embodiments of this application. For example, the preset distance threshold can be 1 mm, 0 mm, 2 mm, etc.

[0095] Optionally, the preset distance thresholds for the distances between different models are different.

[0096] In one possible design, the display device can determine a preset distance threshold based on the first model and the second model.

[0097] For example, if both the first and second models are aluminum strip models, the preset distance threshold is 0 mm. If the first model is an aluminum strip model and the second model is a top cover model, the preset distance threshold is 0.5 times the sum of the thickness of the aluminum strip model and the thickness of the top cover model. If the first model is an aluminum strip model and the second model is a box model, the preset distance threshold is 0.5 times the sum of the thicknesses of the box model. The initial threshold for the distance between aluminum strips is 0 mm, and the initial threshold for the distance between the aluminum strip and the box is half the thickness of the box wall.

[0098] In other words, the display device can acquire the thickness information of the first model and the thickness information of the second model. Then, based on the thickness information of the first and second models, the display device determines a preset distance threshold.

[0099] Understandably, when the distance between two models is less than or equal to a preset distance threshold, it indicates that the two models are in contact and are in a short-circuit connection state. When the distance between two models is greater than the preset distance threshold, it indicates that the two models are not in complete contact and are in a disconnected state.

[0100] In another possible implementation, for each model detection information, the display device determines the connection relationship between pairs of models in the battery pack simulation model according to a second operation. The second operation includes: the display device comparing a preset pressure threshold with the pressure between the first model and the second model. If the pressure between the first model and the second model is greater than or equal to the preset pressure threshold, the display device determines that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model. If the pressure between the first model and the second model is less than the preset pressure threshold, the display device determines that the first model and the second model are in a disconnected state.

[0101] It should be noted that the preset pressure threshold is not limited in the embodiments of this application. For example, the preset pressure threshold can be 0, 96, 100, etc.

[0102] Understandably, when the pressure between two models is greater than or equal to a preset pressure threshold, it indicates that there is pressure (i.e., contact force) between the two models, meaning they are in complete contact and in a short-circuit connection state. When the pressure between two models is less than the preset pressure threshold, it indicates that the pressure between the two models is relatively low, meaning they are not in complete contact and are in a disconnected state.

[0103] S503: The display device generates a simplified circuit diagram based on the connection relationships between the target circuit elements and the pairwise models in the battery pack simulation model.

[0104] In one possible implementation, the cell model in the battery pack simulation model is connected to the target conductive object model. The display device can then connect the cell elements to the target conductive object elements based on the connection relationship between the cell model and the target conductive object model to obtain an initial circuit diagram. Subsequently, the display device updates the initial circuit diagram based on pairs of models that are in a short-circuit connection state and pairs of models that are not in a short-circuit connection state, resulting in a simplified circuit diagram.

[0105] In one possible design, the simplified circuit diagram includes a cue box that identifies the area where a short circuit has occurred.

[0106] For example, if the aluminum busbars on the obtained battery cell assembly are in a short-circuit connection state, the display device will use a bright color to show the short-circuit connection relationship of the battery cell assembly circuit in the form of a circuit diagram to indicate the risk of short circuit.

[0107] For example, such as Figure 6 As shown in the circuit diagram, cells 1-2 and 1-3 are short-circuited by aluminum busbars 2-2, 2-3, and 2-4 and housing 3.

[0108] Understandably, the display device transforms each model in the battery pack simulation model into target circuit elements, including: cell elements, target conductive object elements, and battery pack casing elements. Then, based on detection information from multiple models, the display device determines the connection relationships between pairs of models in the battery pack simulation model, including short-circuit connection states and unconnected states. This facilitates the identification of which models might be in a short-circuit connection state, potentially causing a short circuit. Next, based on the target circuit elements and the connection relationships between pairs of models in the battery pack simulation model, the display device generates a simplified circuit diagram. This allows engineers to easily identify areas with short-circuit risk using the simplified circuit diagram, improving the efficiency and accuracy of short-circuit location identification.

[0109] The embodiments of this application are described below with reference to specific examples. For example... Figure 7 As shown, this illustrates a method for displaying the battery pack structure. The display device can establish a finite element model. Specifically, the display device can build a structural model of the battery cell assembly and connect it to a detection unit. Then, the display device can perform simulation analysis using a solver. Next, the display device can analyze the results using an automatic visualization program, extract the calculation results, and make judgments based on the results. Finally, the display device can display short-circuit risk areas.

[0110] The foregoing mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the display device or electronic device with a battery pack structure includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0111] This application embodiment can, based on the above method, exemplarily divide a display device or electronic device with a battery pack structure into functional modules. For example, the display device or electronic device with a battery pack structure may include functional modules corresponding to each functional division, or two or more functions may be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division; in actual implementation, there may be other division methods.

[0112] Figure 8 This is a block diagram illustrating a display device with a battery pack structure according to an exemplary embodiment. (Refer to...) Figure 8 The display device 800 of the battery pack structure includes: an acquisition unit 801, a processing unit 802 and a display unit 803.

[0113] Acquisition unit 801 is used to acquire a battery pack simulation model, which includes: a cell model, a target conductive object model, and a battery pack casing model. The cell models and the target conductive object model are located inside the battery pack casing model, and the cell models are connected to each other through the target conductive object models. Processing unit 802 is used to determine the detection information between each pair of models in the battery pack simulation model to acquire multiple model detection information, including: the distance between each pair of models, and / or, the pressure between each pair of models. Processing unit 802 is also used to generate target information based on the multiple model detection information and the battery pack simulation model. The target information is used to reflect the connection relationship between the models. Display unit 803 is used to display the target information.

[0114] Furthermore, processing unit 802 is also used to convert each model in the battery pack simulation model into target circuit elements, including: cell elements, target conductive object elements, and battery pack casing elements. Processing unit 802 is also used to determine the connection relationships between pairs of models in the battery pack simulation model based on multiple model detection information, including: short-circuit connection state and no-connection state. Processing unit 802 is also used to generate a simplified circuit diagram based on the target circuit elements and the connection relationships between pairs of models in the battery pack simulation model.

[0115] Furthermore, the processing unit 802 is also used to determine the connection relationship between pairs of models in the battery pack simulation model for each model detection information according to the first operation; the first operation includes: if the distance between the first model and the second model is less than or equal to a preset distance threshold, then it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model. If the distance between the first model and the second model is greater than the preset distance threshold, then it is determined that the first model and the second model are in a non-connected state.

[0116] Furthermore, the processing unit 802 is also used to determine the connection relationship between pairs of models in the battery pack simulation model according to the second operation for each model detection information; the second operation includes: if the pressure between the first model and the second model is greater than or equal to a preset pressure threshold, then it is determined that the first model and the second model are in a short-circuit connection state, where both the first model and the second model are models in the battery pack simulation model. If the pressure between the first model and the second model is less than the preset pressure threshold, then it is determined that the first model and the second model are in a non-connected state.

[0117] Furthermore, the battery pack simulation model also includes: multiple detection units, which are positioned between each pair of models in the battery pack simulation model. These detection units are used to detect the distance and / or pressure between two models. The processing unit 802 is also used to determine the detection information between each pair of models in the battery pack simulation model through the detection units.

[0118] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0119] Figure 9 This is a schematic diagram illustrating the structure of a display device with a battery pack structure according to an exemplary embodiment. The display device with the battery pack structure may include a processor 902, which executes application code to implement the display method of the battery pack structure in this application.

[0120] The processor 902 may be a central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0121] like Figure 9 As shown, the display device with a battery pack structure may further include a memory 903. The memory 903 stores application code that executes the scheme of this application, and its execution is controlled by the processor 902.

[0122] Memory 903 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. Memory 903 may exist independently and be connected to processor 902 via bus 904. Memory 903 may also be integrated with processor 902.

[0123] like Figure 9 As shown, the battery pack structure display device may further include a communication interface 901, wherein the communication interface 901, processor 902, and memory 903 may be coupled to each other, for example, through a bus 904. The communication interface 901 is used for information exchange with other devices, for example, supporting information exchange between the battery pack structure display device and other devices.

[0124] It should be pointed out that, Figure 9 The device structure shown does not constitute a limitation on the display device for this battery pack structure, except Figure 9 In addition to the components shown, the display device of this battery pack structure may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0125] In actual implementation, the functions implemented by the processing unit 802 can be derived by... Figure 9 The processor 902 shown calls the program code in memory 903 to implement this.

[0126] This application also provides a computer-readable storage medium storing instructions that, when executed by a processor of a computer device, enable the computer to perform the display method for the battery pack structure provided in the embodiments described above. For example, the computer-readable storage medium may be a memory 903 including instructions, which may be executed by a processor 902 of a computer device to complete the method. Optionally, the computer-readable storage medium may be a non-transitory computer-readable storage medium, such as a ROM, RAM, CD-ROM, magnetic tape, floppy disk, or optical data storage device.

[0127] Optionally, the computer-readable storage medium may be a non-transitory computer-readable storage medium, such as a read-only memory (ROM), random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device.

[0128] In an exemplary embodiment, this application also provides an electronic device, which includes: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute instructions to perform a display method for the battery pack structure described in the above embodiments.

[0129] In an exemplary embodiment, this application also provides a computer program product including one or more instructions, which can be executed by a processor 902 of an electronic device to complete the display method of the battery pack structure in the above embodiments.

[0130] It should be noted that when one or more instructions in the computer-readable storage medium or computer program product are executed by the processor of the electronic device, they implement the various processes of the above-described battery pack structure display method embodiment and can achieve the same technical effect as the above-described battery pack structure display method. To avoid repetition, they will not be described again here.

[0131] Through the above description of the embodiments, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0132] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0133] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units; that is, it can be located in one place or distributed in multiple different locations. Some or all of the classified units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0134] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0135] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, essentially, or the part that contributes to the prior art, or a complete or partial classification of the technical solution, can be embodied in the form of a software product. This software product is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0136] The above embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention.

Claims

1. A display method of a battery pack structure, characterized by, The method includes: A battery pack simulation model is obtained, which includes: a cell model, a target conductive object model, and a battery pack shell model. The cell model and the target conductive object model are located inside the battery pack shell model, and the cell models are connected to each other through the target conductive object model. Determine the detection information between each pair of models in the battery pack simulation model to obtain multiple model detection information, the detection information including: the distance between each pair of models, and / or, the pressure between each pair of models; Each model in the battery pack simulation model is converted into a target circuit element, which includes: cell element, target conductive object element, and battery pack casing element; Based on the detection information from the multiple models, the connection relationships between each pair of models in the battery pack simulation model are determined. The connection relationships include: short-circuit connection state and no connection state. Based on the connection relationships between the target circuit elements and the pairwise models in the battery pack simulation model, a simplified circuit diagram is generated. The simplified circuit diagram is shown.

2. The method of claim 1, wherein, The step of determining the connection relationships between pairs of models in the battery pack simulation model based on the multiple model detection information includes: For each of the model detection information, the connection relationship between each pair of models in the battery pack simulation model is determined according to the first operation; the first operation includes: If the distance between the first model and the second model is less than or equal to a preset distance threshold, it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model; If the distance between the first model and the second model is greater than the preset distance threshold, then it is determined that the first model and the second model are in an unconnected state.

3. The method according to claim 1 or 2, characterized in that, The step of determining the connection relationships between pairs of models in the battery pack simulation model based on the multiple model detection information includes: For each piece of model detection information, the connection relationship between pairs of models in the battery pack simulation model is determined according to the second operation; the second operation includes: If the pressure between the first model and the second model is greater than or equal to a preset pressure threshold, it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model; If the pressure between the first model and the second model is less than the preset pressure threshold, then it is determined that the first model and the second model are in a disconnected state.

4. The method according to any one of claims 1-2, characterized in that, The battery pack simulation model further includes: multiple detection units, which are located between each pair of models in the battery pack simulation model, and are used to detect the distance and / or pressure between the two models; The determination of the detection information between pairs of models in the battery pack simulation model includes: The detection unit determines the detection information between pairs of models in the battery pack simulation model.

5. A display device of a battery pack structure, characterized by The device includes: An acquisition unit is used to acquire a battery pack simulation model, the battery pack simulation model including: a cell model, a target conductive object model, and a battery pack shell model, the cell model and the target conductive object model are located inside the battery pack shell model, and the cell models are connected to each other through the target conductive object model; The processing unit is used to determine the detection information between pairs of models in the battery pack simulation model to obtain multiple model detection information, the detection information including: the distance between pairs of models, and / or, the pressure between pairs of models; The processing unit is also used to convert each model in the battery pack simulation model into a target circuit element, the target circuit element including: cell element, target conductive object element and battery pack shell element; The processing unit is further configured to determine the connection relationship between pairs of models in the battery pack simulation model based on the multiple model detection information, wherein the connection relationship includes: short-circuit connection state and no connection state; The processing unit is also used to generate a simplified circuit diagram based on the connection relationship between the target circuit elements and the pairwise models in the battery pack simulation model; The display unit is used to display the simplified circuit diagram.

6. The apparatus according to claim 5, characterized in that, The processing unit is further configured to, for each model detection information, determine the connection relationship between pairs of models in the battery pack simulation model according to the first operation; the first operation includes: If the distance between the first model and the second model is less than or equal to a preset distance threshold, it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model; If the distance between the first model and the second model is greater than the preset distance threshold, then it is determined that the first model and the second model are in an unconnected state.

7. The apparatus according to claim 5 or 6, characterized in that, The processing unit is further configured to, for each of the model detection information, determine the connection relationship between pairs of models in the battery pack simulation model according to the second operation; the second operation includes: If the pressure between the first model and the second model is greater than or equal to a preset pressure threshold, it is determined that the first model and the second model are in a short-circuit connection state, and both the first model and the second model are models in the battery pack simulation model; If the pressure between the first model and the second model is less than the preset pressure threshold, then it is determined that the first model and the second model are in a disconnected state.

8. The apparatus of any one of claims 5-6, wherein, The battery pack simulation model further includes: multiple detection units, which are located between each pair of models in the battery pack simulation model, and are used to detect the distance and / or pressure between the two models; The processing unit is also used to determine the detection information between pairs of models in the battery pack simulation model through the detection unit.

9. A computer-readable storage medium, characterized in that, When the computer-executable instructions stored in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device is capable of performing the method as described in any one of claims 1 to 4.

10. An electronic device, comprising: include: processor; Memory used to store the processor's executable instructions; The processor is configured to execute the instructions to implement the method as described in any one of claims 1 to 4.

Images