Cell pole positioning method and device, welding method and device, equipment and medium

Abstract

The present application provides a method and device for locating a battery cell pole, a welding method and device, an electronic device, a computer-readable storage medium and a computer program product. The method for locating a battery cell pole includes: obtaining detection position information of a target pole; determining an associated pole of the target pole, where the associated pole is at least one pole within a preset range around the target pole; and judging whether the detection position information of the target pole is abnormal based on the associated pole.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a method and device for positioning a battery cell pole, a welding method and device, an electronic device, a computer-readable storage medium, and a computer program product. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] In the production process of batteries, due to the limited capacity and voltage of a single battery cell, multiple batteries are often used in series or parallel in actual use. The existing series and parallel methods are to use connecting pieces to connect the positive and negative poles of adjacent batteries in the battery in series or in parallel, and then weld them. The welding of the pole and the connecting piece requires high precision. Before welding, it is necessary to accurately locate the welding point of the pole and the connecting piece, otherwise it will affect the welding quality, and then affect the performance of the battery, causing battery quality problems. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to propose a method and device for positioning a battery cell pole, a welding method and device, an electronic device, a computer-readable storage medium and a computer program product to improve the accuracy of the positioning of the pole welding.

[0005] An embodiment of the first aspect of the present application provides a method for locating a battery cell pole, which includes: obtaining detection position information of a target pole; determining an associated pole of the target pole, the associated pole being at least one pole within a preset range around the target pole; and determining whether the detection position information of the target pole is abnormal based on the associated pole.

[0006] In the technical solution of the embodiment of the present application, the detection position information of the acquired target pole is judged by selecting at least one associated pole around the target pole, thereby improving the pole positioning accuracy and avoiding the deviation of the detection position information, which is beneficial to improving the accuracy of subsequent pole welding and improving the battery welding quality.

[0007] In some embodiments, the method for locating a cell pole also includes: obtaining a pole design template, the pole design template including design position information of multiple poles, the multiple poles including a target pole; and determining a pole adjacent to the target pole as an associated pole according to the pole design template. The associated pole of any target pole can be determined by the positional relationship of multiple poles in the pole design template, and when determining the position information of the target pole, it is not necessary to be restricted by the scanning trajectory, and the target pole under any scanning trajectory can be accurately located, thereby improving the scope of application of the positioning method.

[0008] In some embodiments, judging whether the position information of the target pole is abnormal according to the distance between the associated pole and the target pole includes: judging whether the detection position information of the associated pole has been obtained; in response to the detection position information of the associated pole having been obtained, calculating the spacing distance between the associated pole and the target pole according to the detection position information of the associated pole and the detection position information of the target pole; calculating the design distance between the target pole and the associated pole according to the design positions of the target pole and the associated pole in the pole design template; judging whether the position information of the target pole is abnormal based on the spacing distance and the design distance. By using the design distance between the associated pole and the target pole whose detection position information has been obtained as a judgment reference, judging whether the position information of the target pole is abnormal by comparing the spacing distance with the design distance, it is possible to clearly measure whether the detected position information of the target pole is abnormal, thereby improving the accuracy of positioning the target pole.

[0009] In some embodiments, judging whether the position information of the target pole is abnormal based on the spacing distance and the design distance includes: judging that the detected position information of the target pole is abnormal in response to the difference between the spacing distance and the design distance being greater than a first preset threshold or less than a second preset threshold; wherein the first preset threshold is greater than the second preset threshold. By setting the deviation range of the difference between the spacing distance and the design distance, the poles beyond the deviation range are identified, which is conducive to controlling the position deviation of the pole according to the accuracy requirements and improving the accuracy of the pole positioning.

[0010] In some embodiments, the method for positioning the battery cell pole also includes: obtaining sample data, the sample data including design position information of multiple sample poles and detection position information of multiple sample poles; calculating the design distance and spacing distance of any adjacent sample poles according to the design position information of the multiple sample poles and the detection position information of the multiple sample poles; determining the first preset threshold and the second preset threshold according to the difference between the design distance and the spacing distance of any adjacent sample poles. Determining the first preset threshold and the second preset threshold by using sample data can more accurately control the pole positioning accuracy, meet the welding accuracy requirements, and improve the quality of battery manufacturing.

[0011] In some embodiments, determining the first preset threshold and the second preset threshold according to the difference between the design distance and the spacing distance of any adjacent sample poles includes: determining the upper limit deviation value and the lower limit deviation value according to the preset process capability index based on the distribution of the difference between the design distance and the spacing distance of any adjacent sample poles, determining the upper limit deviation value as the first preset threshold, and determining the lower limit deviation value as the second preset threshold. Determining the corresponding first preset threshold and the second preset threshold by the preset process capability index can control the positioning accuracy and ensure the quality of pole positioning and welding.

[0012] In some embodiments, the method for locating a battery cell pole further includes: based on the acquired detection position information of multiple target poles, correcting the first preset threshold and the second preset threshold. The first preset threshold and the second preset threshold can be re-determined through the acquired detection position information of the target pole, which can ensure that the first preset threshold and the second preset threshold can better adapt to the battery cell pole of the current battery, avoiding inaccurate judgment caused by incorrect range setting or mismatch.

[0013] In some embodiments, obtaining the detection position information of the target pole includes: collecting an image containing the target pole; determining the position of the target pole in the image, and determining the detection position information of the target pole according to the position of the target pole in the image and the position information of the collection point. By means of visual image recognition, it is possible to collect and identify images of individual poles respectively, and then calculate the position coordinates of the poles through coordinate conversion to obtain the detection position information of the target poles. This can ensure that the accuracy of the detection image of a single pole meets the requirements when the number of poles is large, thereby improving the accuracy of pole positioning.

[0014] In some embodiments, the method for locating a cell pole further includes: in response to whether the detected position information of the target pole is abnormal, issuing an alarm message to correct the abnormal detected position information of the target pole. When the pole position is abnormal, an alarm is issued to remind the operator or control other actuators to correct the detected position information of the target pole, so as to achieve accurate positioning of the pole.

[0015] The second embodiment of the present application provides a method for welding a battery cell pole, the method comprising: positioning a plurality of poles using the positioning method for a battery cell pole as described above; welding the plurality of poles according to the positioning result. After positioning is completed, the detection position coordinates of the poles that meet the accuracy requirements can be obtained, and the battery cell poles are welded in sequence according to the detection position coordinates of the plurality of poles, so that the welding accuracy can meet the quality requirements, avoid defects such as biased welding and cold welding caused by positioning deviation, and improve the quality of battery manufacturing.

[0016] The third aspect of the present application provides a positioning device for a battery cell pole, which includes: an acquisition module, configured to acquire the detection position information of a target pole; a determination module, configured to determine the associated pole of the target pole, the associated pole being at least one pole within a preset range around the target pole; and a judgment module, configured to judge whether the detection position information of the target pole is abnormal based on the associated pole. By determining the detection position information of the target pole obtained by the acquisition module by the determination module and the judgment module, the pole positioning accuracy can be improved, and the detection position information can be avoided from being misaligned, which is conducive to improving the accuracy of subsequent pole welding and improving the battery welding quality.

[0017] The fourth aspect of the present application provides a welding device for a battery cell pole, which includes: a positioning device for a battery cell pole as described above; and a welding module, which is configured to perform welding according to the positioning result of the positioning device for the battery cell pole. The positioning device can accurately position multiple battery cell poles in the battery, and the welding module performs welding operations according to the position of the positioned poles. By improving the positioning accuracy of the poles, it is beneficial to improve the accuracy and welding quality of subsequent pole welding, and improve the manufacturing quality of the battery.

[0018] An embodiment of the fifth aspect of the present application provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for positioning a battery cell pole as described above or the method for welding a battery cell pole as described above.

[0019] An embodiment of the sixth aspect of the present application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for positioning a battery cell pole as described above or the method for welding a battery cell pole as described above.

[0020] An embodiment of the seventh aspect of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the method for positioning a battery cell pole as described above or the method for welding a battery cell pole as described above.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0023] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0024] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0025] Figure 3 A schematic diagram of the exploded structure of a battery cell according to some embodiments of the present application;

[0026] Figure 4 A flow chart of a method for positioning a battery cell pole according to some embodiments of the present application;

[0027] Figure 5 A schematic diagram of a method for positioning a battery cell pole in some embodiments of the present application;

[0028] Figure 6 A schematic diagram of the positions of associated poles in some embodiments of the present application;

[0029] Figure 7 A flow chart of determining abnormality in the detection position information of a target pole in a method for locating a battery pole in some embodiments of the present application;

[0030] Figure 8 A flow chart of obtaining target pole detection position information in a method for locating a battery pole in some embodiments of the present application;

[0031] Fig. 9 A flow chart of a method for positioning a battery cell pole according to other embodiments of the present application;

[0032] Fig.10 A flow chart of a method for welding a battery cell pole according to some embodiments of the present application;

[0033] Fig.11 A structural block diagram of a positioning device for a battery cell pole in some embodiments of the present application;

[0034] Fig.12 A structural block diagram of a welding device for a battery cell pole in some embodiments of the present application;

[0035] Fig.13 This is a workflow diagram of a method for positioning a battery cell pole according to some embodiments of the present application.

[0036] Description of reference numerals:

[0037] Vehicles 1000;

[0038] Battery 100, controller 200, motor 300;

[0039] Box body 10, first part 11, second part 12;

[0040] Battery cell 20, end cover 21, poles 21a, P1, P2, P3, ... P40, shell 22, battery core assembly 23, pole ear 23a;

[0041] Scanning tracks S1, S2; connecting piece 110;

[0042] Image acquisition device 400, battery cell pole positioning device 600, acquisition module 610, determination module 620, judgment module 630, battery cell pole welding device 700, welding module 710;

[0043] The first direction is X, and the second direction is Y. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0050] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0053] The applicant has noticed that in the manufacturing process of the battery module, the battery cell pole and the connecting piece are connected by laser welding technology, and the process accuracy requirement is as high as 0.1 mm. Due to the influence of factors such as the tooling and fixture of the welding equipment, the mechanical position of the galvanometer, and the positioning of the motor, the welding accuracy of the pole often cannot meet the above requirements.

[0054] In order to improve the accuracy of the pole welding process, the applicant has found that the welding object can be photographed with a CCD camera, and the pole-containing image can be obtained and the pole position coordinates can be determined by recognizing the image, thereby completing the positioning of the pole and performing welding according to the positioning result. However, when identifying the welding position of the battery cell pole in the image, the imaging quality of the pole features in the image, such as contamination, missing, or unclear feature points, often leads to deviations in identifying the pole position, and the positioning accuracy cannot be guaranteed.

[0055] Based on the above considerations, in order to improve the positioning accuracy of the battery cell poles and avoid quality defects such as welding deviation and cold welding during subsequent welding, the applicant adopts anti-deviation judgment on the position coordinates of the poles obtained after taking pictures with a CCD camera, and verifies whether the position coordinates of the target poles obtained by image recognition are accurate by calculating the interval distance between the target poles and the associated poles, so as to avoid deviation errors when recognizing the images taken by the CCD camera, which will lead to deviations in the positioning of the pole welding position.

[0056] The battery cells disclosed in the embodiments of the present application can be used, but not limited to, in electrical devices such as vehicles, ships or aircraft. A power supply system comprising the battery cells and batteries disclosed in the present application can be used to form the electrical device, which is conducive to alleviating and automatically adjusting the deterioration of the expansion force of the battery cell, replenishing the consumption of the electrolyte, and improving the stability of the battery performance and the battery life.

[0057] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0058] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0059] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0060] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0061] Please refer to Figure 2 , Figure 2 An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and a battery cell 20, and the battery cell 20 is contained in the housing 10. The housing 10 is used to provide a storage space for the battery cell 20, and the housing 10 can adopt a variety of structures. In some embodiments, the housing 10 can include a first part 11 and a second part 12, and the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell 20. The second part 12 can be a hollow structure with one end open, and the first part 11 can be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 can also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the housing 10 formed by the first part 11 and the second part 12 can be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0062] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0063] Each battery cell 20 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0064] Please refer to Figure 3 , Figure 3 The schematic diagram of the exploded structure of the battery cell 20 provided in some embodiments of the present application. The battery cell 20 refers to the smallest unit that constitutes the battery. Figure 3 The battery cell 20 includes an end cover 21, a shell 22, a battery cell assembly 23 and other functional components.

[0065] The end cap 21 refers to a component that covers the opening of the shell 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 can be adapted to the shape of the shell 22 to match the shell 22. Optionally, the end cap 21 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that the end cap 21 is not easily deformed when squeezed and collided, so that the battery cell 20 can have a higher structural strength and the safety performance can also be improved. Functional components such as poles 21a can be provided on the end cap 21. The pole 21a can be used to electrically connect to the battery cell assembly 23 for outputting or inputting electrical energy of the battery cell 20. In some embodiments, the end cap 21 can also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The material of the end cap 21 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose special restrictions on this. In some embodiments, an insulating member may be provided inside the end cap 21, and the insulating member may be used to isolate the electrical connection components in the housing 22 from the end cap 21 to reduce the risk of short circuit. For example, the insulating member may be plastic, rubber, or the like.

[0066] The shell 22 is a component used to cooperate with the end cover 21 to form the internal environment of the battery cell 20, wherein the formed internal environment can be used to accommodate the battery cell assembly 23, electrolyte and other components. The shell 22 and the end cover 21 can be independent components, and an opening can be set on the shell 22, and the internal environment of the battery cell 20 is formed by covering the opening with the end cover 21 at the opening. Without limitation, the end cover 21 and the shell 22 can also be integrated. Specifically, the end cover 21 and the shell 22 can form a common connection surface before other components are put into the shell, and when the interior of the shell 22 needs to be encapsulated, the end cover 21 covers the shell 22. The shell 22 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 22 can be determined according to the specific shape and size of the battery cell assembly 23. The material of the shell 22 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0067] The battery cell assembly 23 is a component in the battery cell 100 where electrochemical reactions occur. One or more battery cell assemblies 23 may be contained in the housing 22. The battery cell assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active substances constitute the main body of the battery cell assembly, and the parts of the positive and negative electrode sheets without active substances each constitute a pole ear 23a. The positive pole ear and the negative pole ear may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery, the positive active substance and the negative active substance react with the electrolyte, and the pole ear 23a connects the pole to form a current loop.

[0068] In the battery module process, the connection of the pole 21a is divided into internal connection and external connection. The internal connection is the welding of the battery cell tab and the pole on the end cover; the external connection is the welding of the pole through the connecting piece to form a series or parallel circuit to form a battery.

[0069] Figure 4 A flow chart of a method for positioning a battery cell pole provided in some embodiments of the present application.

[0070] According to an embodiment of one aspect of the present invention, a method for positioning a battery cell pole is provided, such as Figure 4 As shown, the method includes:

[0071] Step S401: obtaining detection position information of a target pole;

[0072] Step S402: determining an associated pole of a target pole, where the associated pole is at least one pole within a preset range around the target pole;

[0073] Step S403: judging whether the detection position information of the target pole is abnormal according to the associated pole.

[0074] In the example, the target pole is the battery pole currently being scanned and positioned, and the associated pole is the pole located within a preset range around the target pole. Detection position information refers to data information obtained by detecting the pole position, such as position coordinates. The preset range is a range defined according to certain setting rules. In some examples, the preset range can be set according to the distance from the target pole, for example, a circular area with the target pole as the center and a preset distance as the radius, or it can be set according to the position relationship with the target pole, for example, adjacent to the target pole or separated by a preset number of poles. Since the positioning of multiple poles is carried out sequentially according to the set trajectory, the distance between the associated pole and the target pole is relatively close, and the detection position information of the target pole can be verified in time to prevent deviation. In the example, the number of associated poles corresponding to the target pole is at least one. When the number of associated poles is multiple, on the one hand, it can avoid the inability to verify and judge when a single associated pole has no position information. On the other hand, multiple associated poles can judge from multiple directions whether the detection position coordinates of the target pole are deviated, thereby improving the accuracy of pole positioning.

[0075] Figure 5 A schematic diagram of a method for positioning a battery cell pole provided in some embodiments of the present application is shown. Figure 5 The positioning method of the embodiment of the present application is further described.

[0076] like Figure 5 As shown in (a), the battery 100 includes a plurality of cells, and the plurality of cells are sequentially arranged along the first direction X and the second direction Y. Each cell is provided with a positive pole and a negative pole, and the poles are numbered P1 to P40 in sequence according to their positions, and the poles are respectively docked and positioned with the connection 110 for welding. The image acquisition device 400 scans the poles in sequence according to the scanning track S1, obtains the detection position information of each pole, and stores the detection position information. In the example, the detection position information of the pole is the detection position coordinate of the pole, and the detection position information corresponding to the pole that has not been scanned and positioned is 0 or a null value.

[0077] For any pole as the target pole, for example, pole P2 is used as the target pole. After obtaining the position information of the target pole, it is also necessary to confirm the associated pole of the target pole, for example, the adjacent pole P1 is used as the associated pole of the target pole, and the position information of the target pole is judged whether it is abnormal according to the position relationship between the detected target pole and the associated pole. If the judgment result is normal, it indicates that the accuracy of the position coordinates of the target pole meets the requirements. If the judgment result is abnormal, it indicates that the accuracy of the position coordinates of the target pole does not meet the requirements, and the position coordinates of the target pole need to be corrected.

[0078] The image acquisition device 400 may be a CCD robot, which scans and locates poles P1 to P40 in sequence according to a scanning trajectory S1 formulated according to the arrangement position of the battery cell poles, wherein the scanning trajectory S1 is in a "Z" shape. In some examples, the associated pole is set to a pole around the target pole, such as the pole with the previous number. In the example, when pole P3 is positioned as the target pole, its associated pole is set to pole P2, and the positional relationship between pole P3 and pole P2 is used to determine whether the detection position information of pole P3 is abnormal.

[0079] In some examples, such as Figure 5 As shown in (b), the image acquisition device 400 scans and locates multiple poles in sequence according to the scanning trajectory S2, and the scanning trajectory S2 is in a "U" shape. Since in the scanning trajectory S2, the scanning and positioning order of the poles has changed compared with the scanning trajectory S1, at this time, after obtaining the detection position information of the target pole, the pole with the previous number may not be scanned and cannot be used to determine whether the position information of the target pole is abnormal. In some examples, the associated poles can be determined as multiple poles around the target pole. In this way, when some associated poles do not have available position information to calculate the distance from the target pole, other associated poles whose position information has been scanned to obtain can be used to determine whether the position information of the target pole is abnormal.

[0080] It can be understood that the above-mentioned method of determining the associated poles is only a partially implementable example, and does not mean that the method of setting the associated poles of the present application is only one or several of the above-mentioned situations.

[0081] In this embodiment, at least one associated pole around the target pole is selected to judge the acquired detection position information of the target pole, thereby improving the pole positioning accuracy and avoiding the deviation of the detection position information, which is beneficial to improving the accuracy of subsequent pole welding and improving the battery welding quality.

[0082] According to some embodiments of the present application, the method for positioning a battery cell pole further includes:

[0083] Acquire a pole design template, the pole design template including design position information of a plurality of poles; wherein the plurality of poles include a target pole;

[0084] A pole adjacent to a target pole is determined as an associated pole according to a pole design template.

[0085] In the example, the pole design template is a template composed of various design parameters of the cell pole after positioning multiple cells in the battery in a pre-designed arrangement, specifically including the design position information of multiple poles, such as the design position coordinates of the poles, or the design position coordinates can be obtained after processing. Since each pole needs to be positioned separately when positioning the pole, the target pole can be any one of the multiple poles to be positioned, and for the design position of each target pole in the pole design template, the associated pole corresponding to the target pole and its design position can be determined.

[0086] Figure 6 A schematic diagram showing the positions of associated poles provided in some embodiments of the present application is shown.

[0087] In some examples, the poles adjacent to the target poles can be determined as associated poles, and adjacent means that there are no other poles between the poles and the target poles. Considering that the arrangement of the poles is actually directly related to the arrangement direction of the battery cells, the poles adjacent to the target poles in the first direction X and the second direction Y along the arrangement of the battery cells can also be selected as associated poles. Figure 6 As shown, when pole P1 is used as the target pole, the associated poles may be pole P2 adjacent to the first direction X, and pole P3 adjacent to the second direction Y; and when pole P6 is used as the target pole, the associated poles may be poles P5 and pole P25 adjacent to the first direction X, and poles P4 and pole P8 adjacent to the second direction Y. In this way, no matter how the scanning trajectory changes, before scanning and positioning the target pole, at least one of the surrounding associated poles must have completed scanning and positioning, which can be used to verify the position information of the target pole.

[0088] In this embodiment, the associated poles of any target pole can be determined through the positional relationship of multiple poles in the pole design template. When judging the position information of the target pole, there is no need to be restricted by the scanning trajectory. The target pole under any scanning trajectory can be accurately located, thereby improving the scope of application of the positioning method.

[0089] Figure 7 A flow chart for determining abnormality in the target pole detection position information in the battery cell pole positioning method provided in some embodiments of the present application is shown.

[0090] According to some embodiments of the present application, Figure 7 As shown, step S403 includes:

[0091] Step S4031: Determine whether the detection position information of the associated pole has been acquired.

[0092] Step S4032: In response to the detection position information of the associated pole being obtained, the interval distance between the associated pole and the target pole is calculated according to the detection position information of the associated pole and the detection position information of the target pole.

[0093] Step S4033: Calculate the design distance between the target pole and the associated pole according to the design position information of the target pole and the associated pole in the pole design template.

[0094] Step S4034: Based on the spacing distance and the design distance, determine whether the detection position information of the target pole is abnormal.

[0095] Whether the detection position information of the associated pole is obtained refers to whether the associated pole has been positioned. For poles that have not yet been positioned, the corresponding detection position information is zero or null, while the position information corresponding to the poles that have been positioned is valid data, which can be the coordinates of the pole in the set coordinate system. The interval distance refers to the distance calculated based on the detection position information determined by the positioning detection results of the target pole and the associated pole. By comparing the interval distance with the design distance, it can be determined whether the detection position information obtained by the target pole detection is abnormal.

[0096] In this embodiment, by taking the design distance between the associated pole whose detection position information has been obtained and the target pole as a judgment basis, the interval distance is compared with the design distance to determine whether the position information of the target pole is abnormal, the degree of deviation of the detected target pole position can be quantitatively measured, thereby improving the accuracy of pole positioning.

[0097] In some embodiments, step S4034 includes:

[0098] In response to the difference between the spacing distance and the design distance being greater than a first preset threshold or less than a second preset threshold, it is determined that the detection position information of the target pole is abnormal; wherein the first preset threshold is greater than the second preset threshold. In the example, the difference between the spacing distance and the design distance may be greater than 0, or may be less than 0 or equal to 0, and the first preset threshold and the second preset threshold are respectively set as the upper limit and lower limit of the acceptable range of the difference. When the difference is greater than or equal to the second preset threshold and less than or equal to the first preset threshold, it is considered that the detection result is accurate, and the fluctuation range at this time is within the normal error range. When the difference is greater than the first preset threshold or less than the second preset threshold, it indicates that it has exceeded the normal error range, which means that the detection position information of the target pole detected is abnormal.

[0099] By specifically setting the critical threshold for judging abnormalities, the positioning of the pole can be controlled according to the requirements of positioning accuracy, meeting the needs of positioning accuracy, which is conducive to improving the quality of subsequent welding.

[0100] According to some embodiments of the present application, the method for positioning a battery cell pole further includes:

[0101] Acquire sample data including design position information of a plurality of sample poles and detection position information of a plurality of sample poles;

[0102] Calculating the design distance and spacing distance of any adjacent sample poles respectively according to the design position information of the plurality of sample poles and the detection position information of the plurality of sample poles;

[0103] The first preset threshold and the second preset threshold are determined according to the distribution of the difference between the design distance and the spacing distance of any adjacent sample poles.

[0104] The sample pole is the pole of the battery used as a sample. The sample pole can be a pole of a battery with the same structural form and the same or similar production batch as the current battery, such as a pole of a battery of the same model and the same batch after positioning. This ensures that the data corresponding to the sample pole can be as close as possible to the data of the current pole, so that the first preset threshold value and the second preset threshold value determined in this way can more accurately reflect the positioning accuracy of the target pole.

[0105] By determining the first preset threshold and the second preset threshold through sample data, the pole positioning accuracy can be controlled more accurately, the welding accuracy requirements can be met, and the quality of battery manufacturing can be improved.

[0106] In some embodiments, determining the first preset threshold and the second preset threshold according to the difference between the design distance and the spacing distance of any adjacent sample poles includes:

[0107] Based on the distribution of the difference between the design distance and the spacing distance of any adjacent sample poles, the upper limit deviation value and the lower limit deviation value are determined according to the preset process capability index (Complex Process Capability index, CPK);

[0108] The upper limit deviation value is determined as the first preset threshold value, and the lower limit deviation value is determined as the second preset threshold value.

[0109] In the example, CPK is an indicator used to represent process capability. It is the ratio of the maximum allowable variation range of process performance to the normal deviation of the process. By confirming the degree to which product characteristics meet specifications, it is ensured that the defect rate of process finished products that do not meet specifications is above the required level. The size of CPK corresponds to the yield level of process capability. Selecting the corresponding first preset threshold and second preset threshold according to CPK can well control the positioning accuracy of the pole so as to meet the requirements of high-precision welding. For example, when CPK is greater than 1.67, the corresponding process level is A+, indicating that there are no defects, and the corresponding upper and lower deviation values ​​are determined based on this, and used as the first and second preset thresholds to meet the accuracy requirements of pole welding up to 0.1 mm.

[0110] By determining the corresponding first preset threshold and second preset threshold through the preset process capability index, the positioning accuracy can be controlled to ensure the quality of pole positioning and welding.

[0111] In some embodiments, the method for locating a battery cell pole further includes: based on the acquired detection position information of the plurality of target poles, correcting the first preset threshold and the second preset threshold.

[0112] In the example, the sample pole may also be a pole that has been positioned in the current battery. Exemplarily, the pole may be positioned according to the first preset threshold and the second preset threshold that are initially set. When the number of poles that have been positioned meets a certain number, the first preset threshold and the second preset threshold are re-determined according to the distribution of the difference between the design distance and the detection distance between the pole that has been positioned and the associated pole, so that the unreasonable first preset threshold and the second preset threshold that are initially determined can be corrected to improve the accuracy of pole positioning.

[0113] Through the acquired detection position information of the target pole, the first preset threshold and the second preset threshold can be re-determined according to the reset value requirement. For example, when CPK is greater than 1.67, the corresponding first preset threshold and the second preset threshold are determined. In this way, the first preset threshold and the second preset threshold can be better adapted to the current battery cell pole, avoiding inaccurate judgment caused by incorrect range setting or mismatch.

[0114] Figure 8 A flow chart of obtaining target pole detection position information in a method for locating a battery cell pole provided in some embodiments of the present application is shown.

[0115] According to some embodiments of the present application, Figure 8 As shown, step S401 includes:

[0116] Step S4011: Acquire an image containing the target pole.

[0117] Step S4012: Determine the position of the target pole in the image.

[0118] Step S4013: Determine the detection position information of the target pole according to the position of the target pole in the image and the position information of the acquisition point.

[0119] In an example, an image acquisition device, such as a CCD camera, may be used to acquire an image of the target pole. Figure 4 As shown, the image acquisition device 400 can use a CCD camera driven by a manipulator to sequentially acquire images of the poles according to a preset scanning trajectory. The position information of the acquisition point includes the position of the CCD camera during image acquisition.

[0120] When determining the position of the target pole, it is necessary to identify the captured image, and determine the possible position of the pole by identifying the pole features in the image. During the image acquisition and recognition process, the pole feature points may be soiled, missing, unclear, etc., making the recognition result inaccurate. In some examples, some calibration benchmarks can be set in the image acquisition template, and the pole position in the image can be further identified by the calibration benchmark. For example, the deviation value between the pole and the calibration benchmark is calculated, and then the pole coordinates in the image are calculated according to the image coordinates of the calibration benchmark. Then, according to the position of the acquisition point of the CCD camera fed back by the manipulator in the image acquisition device 400, the coordinate value of the pole in the manipulator tool coordinate system is converted and used as the detection position information of the target pole.

[0121] In this embodiment, the image of a single pole can be collected and identified separately by means of visual image recognition, and then the position coordinates of the pole are calculated through coordinate conversion to obtain the detection position information of the target pole. When the number of poles is large, the accuracy of the detection image of a single pole can be guaranteed to meet the requirements, thereby improving the accuracy of pole positioning.

[0122] According to some embodiments of the present application, Fig. 9 As shown, the method for positioning the battery cell pole also includes:

[0123] Step S404: In response to whether the detected position information of the target pole is abnormal, an alarm message is issued, and the abnormal detected position information of the target pole is corrected.

[0124] When an abnormality is detected in the position of the target pole, an alarm message can be issued to remind the staff to perform manual verification or adjustment, or the alarm message can be sent to another actuator, which performs a correction operation based on the detection result to correct the detection position information of the abnormal target pole so that the position information of the target pole meets the set requirements.

[0125] The detection position information of the abnormal target pole can be corrected by adjusting the image recognition parameters to correct the image recognition error, or by adjusting the positioning structure of the pole to avoid blocking the image, and the position of the collection point of the CCD camera can be adjusted to improve the quality and resolution of image acquisition.

[0126] Fig.10 A flow chart of a method for welding battery cell poles provided in some embodiments of the present application.

[0127] The second aspect of the present application provides a method for welding a battery cell pole, such as Fig.10 As shown, the welding method includes:

[0128] Step S501: positioning a plurality of poles using the positioning method for battery cell poles described above.

[0129] Step S502: welding a plurality of poles according to the positioning result.

[0130] In this embodiment, after positioning is completed, the detection position coordinates of the poles that meet the accuracy requirements can be obtained, and the battery cell poles are welded in sequence according to the detection position coordinates of multiple poles, so that the welding accuracy can meet the quality requirements, avoid defects such as offset welding and cold welding caused by positioning deviation, and improve the quality of battery manufacturing.

[0131] Fig.11 A structural block diagram of a battery cell pole positioning device provided in some embodiments of the present application.

[0132] The third aspect of the present application provides a positioning device 600 for a battery cell pole, such as Fig.11 As shown, the positioning device 600 includes: an acquisition module 610 , a determination module 620 and a judgment module 630 .

[0133] The acquisition module 610 is configured to acquire the detection position information of the target pole. The determination module 620 is configured to determine the associated pole of the target pole, where the associated pole is at least one pole within a preset range around the target pole. The judgment module 630 is configured to judge whether the detection position information of the target pole is abnormal according to the associated pole.

[0134] In an example, the acquisition module 610 may be the image acquisition device 400 described above.

[0135] This embodiment improves the pole positioning accuracy and avoids the deviation of the detection position information by determining the detection position information of the target pole obtained by the acquisition module through the determination module and the judgment module, which is beneficial to improving the accuracy of subsequent pole welding and improving the battery welding quality.

[0136] Fig.12A structural block diagram of a battery cell pole welding device provided in some embodiments of the present application.

[0137] The fourth aspect of the present application provides a welding device 700 for a battery cell pole, such as Fig.12 As shown, the welding device 700 includes: the positioning device 600 for the battery cell pole as described above; and a welding module 710, which is configured to perform welding according to the positioning result of the positioning device 600 for the battery cell pole.

[0138] In the example, the welding module 710 may be a laser welding device, and according to the positioning result, the laser welding operation of the battery cell pole and the connecting piece 110 is performed. It is understandable that the welding module 710 may also be other types of welding devices, as long as the welding accuracy or welding requirements of the battery cell pole can be met.

[0139] The positioning device of this embodiment can accurately position multiple battery cell poles in the battery, and the welding module performs welding operations according to the positioned pole positions. By improving the pole positioning accuracy, it is beneficial to improve the accuracy and welding quality of subsequent pole welding, thereby improving the battery manufacturing quality.

[0140] An embodiment of the fifth aspect of the present application provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for positioning a battery cell pole as described above or the method for welding a battery cell pole as described above.

[0141] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations may include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0142] An embodiment of the sixth aspect of the present application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for positioning a battery cell pole as described above or the method for welding a battery cell pole as described above.

[0143] It should be noted that the computer-readable medium mentioned above in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer readable signal medium may also be any computer readable medium other than a computer readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0144] An embodiment of the seventh aspect of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the method for positioning a battery cell pole as described above or the method for welding a battery cell pole as described above.

[0145] Fig.13 A workflow diagram of a method for positioning a battery cell pole provided in some embodiments of the present application is shown.

[0146] like Figure 5 , Figure 6 and Fig.13 As shown, the image acquisition device 400 is a CCD camera driven by a robot, and the multiple battery poles of the battery 100 are poles P1 to poles P40 arranged at intervals. The CCD camera positions the multiple poles according to the scanning track S2 in the following steps:

[0147] First, a pole design template of the battery 100 is obtained, and according to the design positions of multiple poles in the pole design template, corresponding associated poles, design position coordinates, and design distances from the associated poles are determined respectively.

[0148] Then, the CCD camera is driven by the manipulator to move to the collection point to collect images of the target pole P1. The collected image is recognized, and the detection position coordinates of the pole P1 are calculated according to the position coordinates of the collection point, and stored as the detection position information.

[0149] For the target pole P1, determine whether the detection position information of the associated poles P2 and P3 has been obtained. If the detection position information is a non-null value, it means it has been obtained, then proceed to the next step. If the detection position information is a null value, it means it has not been obtained, then return to continue collecting the image of the next target pole.

[0150] In this embodiment, pole P1 is the first pole on the scanning track, and its corresponding associated poles, poles P2 and P3, have not been detected yet, and their corresponding detection position information is null, and the next pole P3 on the scanning track is returned for detection.

[0151] The manipulator drives the CCD camera to move to the collection point to collect images of the target pole P3, and then performs image recognition and calculates the detection position coordinates of the target pole P3, and stores them as detection position information.

[0152] For the target pole P3, its associated poles are poles P1, poles P4 and poles P5. Among the associated poles, only the detection position information of pole P1 is a non-null value. The interval distance between poles P1 and poles P3 is calculated, and the interval distance is compared with the design distance between poles P1 and poles P3 to determine whether the difference between the interval distance and the design distance falls within a range less than or equal to the first preset threshold and greater than or equal to the second preset threshold. If so, it indicates that the accuracy of the detection position coordinates of pole P3 meets the requirements, and the positioning process of the next pole is entered. If not, the correction process is entered, and after adjusting the parameter settings in the image recognition template, the pole is re-imaged and positioned until the detection position coordinates meet the requirements.

[0153] By collecting the position information of the poles, according to the distribution of the difference between the spacing distance between each pole and the associated pole and the design distance, it is judged whether the currently set first preset threshold and second preset threshold are appropriate. Specifically, the distribution of the difference between the spacing distance between the currently detected pole and the associated pole and the design distance can be calculated according to the latest first preset threshold and second preset threshold when CPK is greater than 1.67, and compared with the currently set first preset threshold and second preset threshold. When the deviation between the latest first preset threshold and second preset threshold and the currently set first preset threshold and second preset threshold exceeds a certain numerical range, it is judged that the currently set first preset threshold and second preset threshold are inappropriate, and the currently set first preset threshold and second preset threshold are corrected.

[0154] After all poles are positioned, the detected position coordinates of the positioned poles are output and sent to the welding unit to perform subsequent welding operations.

[0155] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for positioning a battery cell pole, characterized in that: include: Obtaining detection position information of the target pole; Acquire a pole design template, wherein the pole design template includes design position information of a plurality of poles; The plurality of poles include the target pole; Determine an associated pole of the target pole according to the pole design template, wherein the associated pole is at least one pole within a preset range around the target pole; Judging whether the detection position information of the target pole is abnormal according to the associated pole includes: Determining whether the detection position information of the associated pole has been acquired; In response to the detection position information of the associated pole being acquired, calculating the spacing distance between the associated pole and the target pole according to the detection position information of the associated pole and the detection position information of the target pole; Calculate the design distance between the target pole and the associated pole according to the design positions of the target pole and the associated pole in the pole design template; Based on the spacing distance and the design distance, it is determined whether the position information of the target pole is abnormal.

2. The positioning method according to claim 1, characterized in that: The determining whether the position information of the target pole is abnormal based on the spacing distance and the design distance includes: In response to a difference between the spacing distance and the design distance being greater than a first preset threshold or less than a second preset threshold, determining that the detection position information of the target pole is abnormal; Wherein, the first preset threshold is greater than the second preset threshold.

3. The positioning method according to claim 2, characterized in that: Also includes: Acquire sample data, wherein the sample data includes design position information of a plurality of sample poles and detection position information of a plurality of sample poles; Calculating the design distance and spacing distance of any adjacent sample poles respectively according to the design position information of the plurality of sample poles and the detection position information of the plurality of sample poles; The first preset threshold and the second preset threshold are determined according to the difference between the design distance and the spacing distance of any adjacent sample poles.

4. The positioning method according to claim 3, characterized in that: The determining of the first preset threshold and the second preset threshold according to the difference between the design distance and the spacing distance of any adjacent sample poles comprises: Based on the distribution of the difference between the design distance and the spacing distance of any adjacent sample poles, the upper limit deviation value and the lower limit deviation value are determined according to the preset process capability index, the upper limit deviation value is determined as the first preset threshold value, and the lower limit deviation value is determined as the second preset threshold value.

5. The positioning method according to claim 3, characterized in that: Also includes: Based on the acquired detection position information of the plurality of target poles, the first preset threshold and the second preset threshold are corrected.

6. The positioning method according to any one of claims 1 to 5, characterized in that: The obtaining of the position information of the target pole comprises: acquiring an image containing the target pole; determining the position of the target pole in the image, The detection position information of the target pole is determined according to the position of the target pole in the image and the position information of the acquisition point.

7. The positioning method according to any one of claims 1 to 5, characterized in that: Also includes: In response to the detection position information of the target pole being abnormal, an alarm message is issued to correct the abnormal detection position information of the target pole.

8. A method for welding a battery cell pole, characterized in that: include: Positioning a plurality of poles using the method for positioning a battery cell pole according to any one of claims 1 to 7; The plurality of poles are welded according to the positioning result.

9. A positioning device for a battery cell pole, characterized in that: include: An acquisition module is configured to acquire detection position information of a target pole and a pole design template, wherein the pole design template includes design position information of a plurality of poles; The plurality of poles include the target pole; A determination module is configured to determine an associated pole of the target pole according to the pole design template, wherein the associated pole is at least one pole within a preset range around the target pole; A judgment module is configured to judge whether the detection position information of the target pole is abnormal based on the associated pole, including: judging whether the detection position information of the associated pole has been obtained; in response to the detection position information of the associated pole having been obtained, calculating the spacing distance between the associated pole and the target pole based on the detection position information of the associated pole and the detection position information of the target pole; calculating the design distance between the target pole and the associated pole based on the design positions of the target pole and the associated pole in the pole design template; judging whether the position information of the target pole is abnormal based on the spacing distance and the design distance.

10. A welding device for a battery cell pole, characterized in that: include: The battery cell pole positioning device as claimed in claim 9; as well as The welding module is configured to perform welding according to the positioning result of the positioning device of the battery cell pole.

11. An electronic device, characterized in that: include: at least one processor; as well as A memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor so as to enable the at least one processor to execute the positioning method as described in any one of claims 1 to 7 or the welding method as described in claim 8.

12. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the positioning method according to any one of claims 1 to 7 or the welding method according to claim 8 is implemented.

13. A computer program product, characterized in that The computer program product comprises a computer program, which implements the positioning method according to any one of claims 1 to 7 or the welding method according to claim 8 when being executed by a processor.

Images