A battery cell glue dripping detection method and device, a storage medium and an electronic device

Abstract

The application provides a battery cell glue dropping detection method and device, a storage medium and an electronic device. The method comprises the following steps: obtaining first distance information, second distance information, top distance information and bottom distance information corresponding to a target image; the target image is an image of a battery cell after glue dropping; the first distance information is distance information between a first side of a fold and a first side of glue; the second distance information is distance information between a second side of the fold and a second side of glue; the top distance information is distance information between a third side and a top side of glue; and the bottom distance information is distance information between the third side and a bottom side of glue. A glue dropping detection result is determined based on the first distance information, the second distance information, the top distance information and the bottom distance information. The glue dropping condition at the fold is detected, the qualified rate of the battery cell glue dropping is ensured, and the overall quality of the battery cell is improved.

Description

Technical Field

[0001] This application relates to the field of batteries, and more specifically, to a method, apparatus, storage medium, and electronic device for detecting battery cell adhesive. Background Technology

[0002] With the rapid development of the new energy industry, the popularity of new energy transportation tools is also increasing, such as new energy vehicles, electric motorcycles, and electric bicycles. As a crucial component of new energy transportation tools, the quality of the battery directly affects the overall quality of the vehicle. The battery cell, as the energy storage component of a rechargeable battery, directly determines the quality of the rechargeable battery.

[0003] Many factors influence the quality of battery cells, one of which is the quality of the adhesive coating and sealing process. To ensure cell quality, it is necessary to test the adhesive application, which has become a persistent challenge for those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide a method, apparatus, storage medium, and electronic device for detecting battery cell adhesive, so as to at least partially improve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

[0006] In a first aspect, embodiments of this application provide a method for detecting adhesive residue on a battery cell, wherein the battery cell to be tested includes at least one bend, and the method includes:

[0007] Obtain the first distance information, second distance information, top distance information, and bottom distance information corresponding to the target image;

[0008] Wherein, the target image is the image of the battery cell to be tested after the glue has been applied; the first distance information is the distance between the first edge line of the bend of the battery cell to be tested and the first side glue edge; the second distance information is the distance between the second edge line of the bend and the second side glue edge; the top distance information is the distance between the third edge line and the top glue edge; the bottom distance information is the distance between the third edge line and the bottom glue edge; the third edge line passes through the intersection of the first edge line and the second edge line; the first side glue edge is the glue edge closer to the first edge line; the second side glue edge is the glue edge closer to the second edge line; the bottom glue edge is the glue edge located on the side facing the bend opening; and the top glue edge is the glue edge located on the side opposite to the bend opening.

[0009] The epoxy resin detection result is determined based on the first distance information, the second distance information, the top distance information, and the bottom distance information.

[0010] Secondly, embodiments of this application provide a battery cell adhesive testing device, wherein the battery cell to be tested includes at least one bend, and the device includes:

[0011] The information acquisition module is used to acquire the first distance information, the second distance information, the top distance information, and the bottom distance information corresponding to the target image;

[0012] Wherein, the target image is the image of the battery cell to be tested after the glue has been applied; the first distance information is the distance between the first edge line of the bend of the battery cell to be tested and the first side glue edge; the second distance information is the distance between the second edge line of the bend and the second side glue edge; the top distance information is the distance between the third edge line and the top glue edge; the bottom distance information is the distance between the third edge line and the bottom glue edge; the third edge line passes through the intersection of the first edge line and the second edge line; the first side glue edge is the glue edge closer to the first edge line; the second side glue edge is the glue edge closer to the second edge line; the top glue edge is the glue edge away from the bend opening; and the bottom glue edge is the glue edge closer to the bend opening.

[0013] The processing module is used to determine the epoxy resin detection result based on the first distance information, the second distance information, the top distance information, and the bottom distance information.

[0014] Thirdly, embodiments of this application provide a storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described method.

[0015] Fourthly, embodiments of this application provide an electronic device, the electronic device comprising: a processor and a memory, the memory being used to store one or more programs; when the one or more programs are executed by the processor, the above-described method is implemented.

[0016] Fifthly, embodiments of this application provide a dispensing system, including: an actuator and the electronic device described in the fourth aspect, wherein the actuator is used to complete the dispensing of battery cells under the control of the electronic device.

[0017] Compared to existing technologies, this application provides a method, apparatus, storage medium, and electronic device for detecting adhesive application in battery cells. The method includes: acquiring first distance information, second distance information, top distance information, and bottom distance information corresponding to a target image; the target image is an image of the battery cell to be tested after adhesive application; the first distance information is the distance between the first edge of the corner and the first side adhesive edge; the second distance information is the distance between the second edge of the corner and the second side adhesive edge; the top distance information is the distance between the third edge and the top adhesive edge; and the bottom distance information is the distance between the third edge and the bottom adhesive edge. The method determines the adhesive application detection result based on the first distance information, second distance information, top distance information, and bottom distance information. By detecting the adhesive application at the corner, the adhesive application pass rate of the battery cell is ensured, thereby improving the overall quality of the battery cell.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1(a) is a schematic diagram of the cell bend provided in an embodiment of this application;

[0021] Figure 1(b) is a schematic diagram of the adhesive dripping position at the corner of the battery cell provided in the embodiment of this application;

[0022] Figure 1(c) is an enlarged schematic diagram of the V-angle of the battery cell provided in the embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0024] Figure 3 A schematic flowchart illustrating the battery cell adhesive testing method provided in this application embodiment;

[0025] Figure 4 A schematic diagram of the folded portion of the target image provided in the embodiments of this application;

[0026] Figure 5 This is one of the flowcharts illustrating the battery cell adhesive testing method provided in the embodiments of this application;

[0027] Figure 6 A schematic diagram of the sub-step S105 provided in the embodiments of this application;

[0028] Figure 7 A schematic diagram of the sub-step S105 provided in the embodiments of this application;

[0029] Figure 8 This is one of the flowcharts illustrating the battery cell adhesive testing method provided in the embodiments of this application;

[0030] Figure 9 This is a schematic diagram of the battery cell adhesive detection device provided in an embodiment of this application.

[0031] In the diagram: 10-Processor; 11-Memory; 12-Bus; 13-Communication Interface; 201-Information Acquisition Module; 202-Processing Module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] In the description of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] Conventional battery cells typically have a square geometric structure, making adhesive application relatively simple. However, for irregularly shaped cells with corners, such as L-shaped cells (as shown in Figure 1(a)), a specific method is required to apply adhesive to the corners. This can be understood as attaching a circular adhesive pad to the bottom of the corner, and then applying AB adhesive on top of the pad. Specifically, adhesive is applied at the intersection of the two edges of the inner bend of the cell, forming a droplet covering the intersection of the two edges of the inner bend. Please refer to Figures 1(b) and 1(c). Figure 1(b) is a schematic diagram of the adhesive application location at the corner of the battery cell according to an embodiment of this application. Specifically, the area within the dashed box in Figure 1(b) represents the adhesive application location. Figure 1(c) is an enlarged schematic diagram of the V-angle of the battery cell corner according to an embodiment of this application. Optionally, the corner in this application can be presented as a rounded corner, but it is not limited to this.

[0040] The quality of the adhesive coating and dripping on the battery cell directly affects the cell's quality. Therefore, it is necessary to inspect the dripping process of irregularly shaped battery cells with folded corners to ensure cell quality.

[0041] This application provides an electronic device, which can be a control unit in a dispensing system, or a stand-alone computer, server, or mobile terminal, etc. Please refer to... Figure 2 This is a schematic diagram of the structure of an electronic device. The electronic device includes a processor 10, a memory 11, and a bus 12. The processor 10 and the memory 11 are connected via the bus 12. The processor 10 is used to execute executable modules, such as computer programs, stored in the memory 11.

[0042] Processor 10 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the cell dispensing detection method can be completed through integrated logic circuits in the hardware or software instructions within processor 10. The processor 10 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0043] The memory 11 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device.

[0044] Bus 12 can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. Figure 2 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus 12 or one type of bus 12.

[0045] The memory 11 is used to store programs, such as the program corresponding to the battery cell adhesive testing device. The battery cell adhesive testing device includes at least one software function module that can be stored in the memory 11 in the form of software or firmware or embedded in the operating system (OS) of the electronic device. After receiving an execution instruction, the processor 10 executes the program to implement the battery cell adhesive testing method.

[0046] Possibly, the electronic device provided in this application embodiment also includes a communication interface 13. The communication interface 13 is connected to the processor 10 via a bus. In one possible implementation, the electronic device can receive images transmitted by the image acquisition device through the communication interface 13.

[0047] Optionally, when the electronic device acts as a control unit in the dispensing system, it can also send control commands and query commands to other components in the dispensing system through the communication interface 13, and can also receive data and requests transmitted by other departments.

[0048] It should be understood that, Figure 2 The structure shown is only a partial schematic diagram of the electronic device; the electronic device may also include components that are larger than... Figure 2 The more or fewer components shown, or having the same Figure 2 The different configurations shown. Figure 2 The components shown can be implemented using hardware, software, or a combination thereof.

[0049] The battery cell adhesive testing method provided in this application embodiment can be applied to, but is not limited to, applications in battery cells. Figure 2 For the specific process of the electronic devices shown, please refer to [link / reference]. Figure 3 The core epoxy resin testing methods include S105, S106, S107 and S108, which are described in detail below.

[0050] S105, acquire the first distance information, second distance information, top distance information and bottom distance information corresponding to the target image.

[0051] The target image is the image of the battery cell to be tested after the glue has been applied. The battery cell to be tested includes at least one bend. The first distance information is the distance between the first edge of the bend and the first side glue edge. The second distance information is the distance between the second edge of the bend and the second side glue edge. The top distance information is the distance between the third edge and the top glue edge. The bottom distance information is the distance between the third edge and the bottom glue edge. The third edge passes through the intersection of the first edge and the second edge, and the angle formed by the third edge, the first edge, and the second edge is equal. The first side glue edge is the glue edge of the glue droplet that is closer to the first edge. The second side glue edge is the glue edge of the glue droplet that is closer to the second edge. The bottom glue edge is the glue edge of the glue droplet located on the side facing the opening of the bend. The top glue edge is the glue edge of the glue droplet located on the side opposite to the opening of the bend.

[0052] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the folded portion of the target image provided in the embodiments of this application. Figure 4 The positional relationship between the first edge line, the second edge line, the third edge line, the first side adhesive edge, the second side adhesive edge, the top adhesive edge, and the bottom adhesive edge is shown. Optionally, the first edge line and the second edge line are the two edge lines at the inner bend of the angle.

[0053] like Figure 4 As shown, the third sideline passes through the intersection point O of the first and second sidelines, and the angles formed by the third sideline, the first sideline, and the second sideline are equal, α1 and α2. Figure 4 L1, L2, L3, and L4 in the text represent the first distance information, the second distance information, the top distance information, and the bottom distance information, respectively. Figure 4 The dashed × symbol in the image represents the glue edge points identified by capturing the target image.

[0054] S106, determine the dispensing detection result based on the first distance information, the second distance information, the top distance information, and the bottom distance information. If yes, proceed to S108; otherwise, proceed to S107.

[0055] It should be understood that if the adhesive application of the battery cell to be tested is unqualified, the battery cell to be tested needs to be transferred to the unqualified product station and S107 needs to be executed. If the adhesive application of the battery cell to be tested is qualified, the battery cell to be tested can be transferred to the qualified product station and S108 needs to be executed.

[0056] This application addresses the lack of a method in the prior art for detecting the adhesive application at the corner positions of irregularly shaped battery cells, thereby improving the accuracy of detecting the adhesive application effect at these positions. It should be understood that existing adhesive application methods differ from the method described in this application, making it difficult to derive the technical problem solved by this application, nor does it disclose a method for detecting the adhesive application effect.

[0057] S107 If the battery cell to be tested is unqualified, the battery cell to be tested shall be transferred to the unqualified product station.

[0058] S108. If the battery cell to be tested is qualified, the battery cell to be tested will be transferred to the qualified product station.

[0059] Alternatively, electronic devices can control the conveying device in the dispensing system, such as a conveyor belt, to transfer the battery cells to be tested to either the defective or acceptable product station.

[0060] In summary, this application provides a method for detecting adhesive application in battery cells, comprising: acquiring first distance information, second distance information, top distance information, and bottom distance information corresponding to a target image; the target image is an image of the battery cell to be tested after adhesive application; the first distance information is the distance between the first edge of the corner and the first side adhesive edge; the second distance information is the distance between the second edge of the corner and the second side adhesive edge; the top distance information is the distance between the third edge and the top adhesive edge; and the bottom distance information is the distance between the third edge and the bottom adhesive edge; and the adhesive application detection result is determined based on the first distance information, the second distance information, the top distance information, and the bottom distance information. By detecting the adhesive application at the corner, the adhesive application qualification rate of the battery cell is ensured, thereby improving the overall quality of the battery cell.

[0061] exist Figure 3 Based on this, this application also provides a possible implementation method for obtaining edge line information and adhesive edge information. Please refer to [link / reference]. Figure 5 Prior to S105, the cell adhesive testing methods also included S102, S103, and S104, which are described in detail below.

[0062] S102, determine the first and second sides of the bend based on the target image.

[0063] Optionally, in the target image information, the two edges of the inner bend of the battery cell are fitted to obtain the intersecting first edge line and second edge line respectively, and the intersection point O of the extension lines of the first edge line and the second edge line is the center of the bend position.

[0064] Optionally, a straight line can be fitted on the inner L side of the bend using a straight line detection tool to obtain the first side line and the second side line.

[0065] S103, determine the third sideline based on the first and second sidelines.

[0066] Optionally, based on the fact that the third sideline passes through the intersection of the first sideline and the second sideline, and the angle formed by the third sideline, the first sideline, and the second sideline is equal, a sideline fitting is performed to obtain the third sideline.

[0067] Optionally, the inner bend is 90°, and the angle formed by the third sideline, the first sideline, and the second sideline is 45°.

[0068] S104, determine the first side adhesive edge, the second side adhesive edge, the top adhesive edge, and the bottom adhesive edge based on the target image.

[0069] Optionally, a perpendicular line to the third side is drawn based on the intersection point O of the first and second side lines. The adhesive edge on one side of the perpendicular line is called the first adhesive edge, and the adhesive edge on the other side of the perpendicular line is called the second adhesive edge. Among the adhesive edges intercepted in the extension lines of the first and second side lines, the part located at the top of the corner is called the top adhesive edge, and the part located at the bottom of the corner is called the bottom adhesive edge.

[0070] Optionally, after determining point O, the first side adhesive edge, the second side adhesive edge, the top adhesive edge, and the bottom adhesive edge can be determined based on point O and the pre-allocated arc range.

[0071] In one possible implementation, the portion above the third edge line can be defined as the top adhesive edge, and the portion below the third edge line can be defined as the bottom adhesive edge. First, determine the first adhesive edge point that is farthest from the third edge line on the top adhesive edge, and the second adhesive edge point that is farthest from the third edge line on the bottom adhesive edge. Then, determine the first side adhesive edge and the second side adhesive edge based on the first and second adhesive edge points.

[0072] exist Figure 3 Based on the above, regarding the content in S105, this application embodiment also provides a possible implementation method, please refer to... Figure 6 S105 includes: S105-1, S105-2, S105-3 and S105-4, which are described in detail below.

[0073] S105-1, Obtain the maximum distance from the point on the first side of the adhesive edge to the first edge line, and determine it as the first distance information.

[0074] Optionally, a continuous contour detection tool is used to locate the points on the first side of the adhesive edge to determine the points (a1, a2, a3…an). A 2D geometry calculation tool is then used to determine the distances from each point (a1, a2, a3…an) to the first edge line, obtaining the maximum distance from each point on the first side of the adhesive edge to the first edge line, and this maximum distance is defined as the first distance information. For example, the points (a1, a2, a3…an) are… Figure 4 The dotted × symbol in the figure represents the glue edge point.

[0075] S105-2, Obtain the maximum distance from the point on the second side of the adhesive edge to the second edge line, and determine it as the second distance information.

[0076] Optionally, a continuous contour detection tool is used to locate the points on the second side of the adhesive edge to determine the points (b1, b2, b3...bn). A 2D geometry calculation tool is used to determine the distance between the points (b1, b2, b3...bn) and the second edge line, so as to obtain the maximum distance between the points on the second side of the adhesive edge and the second edge line, and to determine the second distance information.

[0077] S105-3, obtain the maximum distance from the top edge of the adhesive to the third edge line, and determine it as the top distance information.

[0078] Optionally, a continuous contour detection tool is used to locate the points on the top adhesive edge to determine the points (c1, c2, c3...cn). A 2D geometry calculation tool is used to determine the distance between the points (c1, c2, c3...cn) and the third edge line, so as to obtain the maximum distance between the points on the top adhesive edge and the third edge line, and to determine the third distance information.

[0079] S105-4, obtain the maximum distance from the bottom edge of the adhesive to the third edge line, and determine it as the bottom distance information.

[0080] Optionally, a continuous contour detection tool is used to locate the points on the bottom edge of the adhesive to determine the points (d1, d2, d3...dn). A 2D geometry calculation tool is used to determine the distance between the points (d1, d2, d3...dn) and the third edge line, so as to obtain the maximum distance between the points on the bottom edge of the adhesive and the third edge line, and to determine it as the fourth distance information.

[0081] Optionally, the first distance information, the second distance information, the third distance information, and the fourth distance information can also be the average or minimum distance from the points on the glued edge to the edge line.

[0082] exist Figure 3 Based on the above, regarding the content in S106, this application embodiment also provides a possible implementation method, please refer to... Figure 7 S105 includes: S106-1, S106-2 and S106-3, which are described in detail below.

[0083] S106-1, determine whether the preset first, second, third, and fourth conditions are met. If yes, execute S106-3; otherwise, execute S106-2.

[0084] Among them, the first condition indicates that the first distance information is within the first preset range, the second condition indicates that the second distance information is within the second preset range, the third condition indicates that the top distance information is within the third preset range, and the fourth condition indicates that the bottom distance information is within the fourth preset range.

[0085] It should be understood that when any one of the first condition, the second condition, the third condition, and the fourth condition does not hold, it means that the drip glue is unqualified, and then S106-2 is executed. When the first condition, the second condition, the third condition, and the fourth condition all hold, it means that the drip glue is unqualified, and then S106-3 is executed.

[0086] S106-2, if any one of them does not hold, it is determined that the drip glue detection result is unqualified.

[0087] S106-3, if all hold, it is determined that the drip glue detection result is qualified.

[0088] In a possible implementation manner, if more than a preset number (such as 2) of the first condition, the second condition, the third condition, and the fourth condition do not hold, it is determined that the drip glue detection result is unqualified. On the contrary, if the number of non - holding conditions is less than the preset number, it is determined that the drip glue detection result is qualified.

[0089] In Figure 3 Based on this, regarding the content in S106, the embodiments of the present application also provide a possible implementation manner. Please refer to the following text.

[0090] Determine the first estimated score based on the first distance information and the first preset range. Specifically, when the first distance information belongs to different ranges, the corresponding estimated scores may be different. Determine the interval position of the first distance information within the first preset range, so as to determine the first estimated score.

[0091] Determine the second estimated score based on the second distance information and the second preset range; determine the third estimated score based on the third distance information and the third preset range; determine the fourth estimated score based on the fourth distance information and the fourth preset range. Similarly, when the sum of the estimated scores is greater than the standard threshold, it is determined to be qualified.

[0092] In Figure 3 Based on this, regarding how to obtain the target image, the embodiments of the present application also provide a possible implementation manner. Please refer to Figure 8 , before S105, the cell drip glue detection method further includes: S101, which is specifically described as follows.

[0093] S101, after the cell to be detected is drip - glued, move the cell to be detected into the target area for target image acquisition.

[0094] It should be understood that the shooting range of the image acquisition unit is often fixed. In order to ensure the clarity of the acquired target image, the battery cell needs to be moved to the target area to acquire the target image.

[0095] In one possible implementation, the electronic device serves as the control unit in the dispensing system. The dispensing system may also include an image acquisition unit (e.g., a 3D camera), a delivery device, a dispensing apparatus, a non-compliant product station, and a compliant product station.

[0096] The conveying device is equipped with a battery cell placement station for placing battery cells. The control unit executes the battery cell dispensing detection method provided in this application. If the dispensing fails, the control unit controls the battery cell transfer device to transfer the battery cell from the placement station to the NG (non-compliant) product station. If the dispensing passes, the control unit controls the battery cell transfer device to transfer the battery cell from the placement station to the qualified product station. Preferably, the conveying device can move back and forth between the image acquisition unit (3D camera) and the dispensing device.

[0097] The workflow of the dispensing system provided in this application is as follows: The control unit controls a robotic arm or other cell transfer device to move the cell from the previous station to the cell placement station of the conveying device. Before dispensing, the image acquisition unit (3D camera) captures an image of the cell to obtain a second image information of the cell before dispensing. The second image information is used as a basis for confirming the dispensing position. In addition to executing the cell dispensing detection method provided in this application, the control unit is also used to confirm the dispensing position based on the second image information to achieve accurate dispensing. After dispensing, the control unit controls the conveying device to return the cell to the shooting range of the image acquisition unit. The image acquisition unit (3D camera) captures an image of the cell to obtain target image information for judging the dispensing effect. It should be noted that the dispensing system can capture images of the cell before and after dispensing using the same image acquisition unit.

[0098] Please see Figure 9 , Figure 9 The present application provides a battery cell adhesive testing device, which can optionally be applied to the electronic device described above.

[0099] The battery cell adhesive testing device includes: an information acquisition module 201 and a processing module 202.

[0100] Information acquisition module 201 is used to acquire first distance information, second distance information, top distance information and bottom distance information corresponding to the target image;

[0101] Among them, the target image is the image of the battery cell to be detected after dispensing. The first distance information is the distance information between the first side line of the fold angle and the first side glue edge. The second distance information is the distance information between the second side line of the fold angle and the second side glue edge. The top distance information is the distance information between the third side line and the top glue edge. The bottom distance information is the distance information between the third side line and the bottom glue edge. The third side line passes through the intersection of the first side line and the second side line, and the included angles formed by the third side line with the first side line and the second side line are equal. The first side glue edge is the glue edge on the side close to the first side line. The second side glue edge is the glue edge on the side close to the second side line. The top glue edge is the glue edge far from the fold angle opening. The bottom glue edge is the glue edge close to the fold angle opening.

[0102] The processing module 202 is configured to determine the dispensing detection result based on the first distance information, the second distance information, the top distance information, and the bottom distance information.

[0103] Optionally, the information acquisition module 201 may execute S102 to S105, and the processing module 202 may execute S101 and S106 - S108.

[0104] It should be noted that the battery cell dispensing detection device provided in this embodiment can execute the method flow shown in the above method flow embodiment to achieve the corresponding technical effects. For the sake of brief description, for the parts not mentioned in this embodiment, reference can be made to the corresponding content in the above embodiment.

[0105] The embodiment of the present application also provides a storage medium, which stores computer instructions and programs. When the computer instructions and programs are read and run, they execute the battery cell dispensing detection method of the above embodiment. The storage medium may include memory, flash memory, registers, or a combination thereof, etc.

[0106] The following provides an electronic device, which may be a control unit in a dispensing system, or may also be an independent computer, server, mobile phone terminal, etc. The electronic device is as Figure 2 shown, and can implement the above battery cell dispensing detection method. Specifically, the electronic device includes: a processor 10, a memory 11, and a bus 12. The processor 10 may be a CPU. The memory 11 is used to store one or more programs. When one or more programs are executed by the processor 10, the battery cell dispensing detection method of the above embodiment is executed.

[0107] The embodiment of the present application also provides a dispensing system, including: an execution mechanism and the above electronic device. The execution mechanism is configured to complete the battery cell dispensing under the control of the electronic device. Among them, the execution mechanism includes an image acquisition unit (such as a 3D camera), a conveying device, a dispensing device, an NG product station, a qualified product station, and a battery cell transfer device.

[0108] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0109] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0110] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in 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, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0111] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0112] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A method for detecting adhesive residue on battery cells, characterized in that, The method includes: Obtain the first distance information, second distance information, top distance information, and bottom distance information corresponding to the target image; Wherein, the target image is the image of the battery cell to be tested after the glue has been applied; the first distance information is the distance between the first edge line of the bend of the battery cell to be tested and the first side glue edge; the second distance information is the distance between the second edge line of the bend and the second side glue edge; the top distance information is the distance between the third edge line and the top glue edge; the bottom distance information is the distance between the third edge line and the bottom glue edge; the third edge line passes through the intersection of the first edge line and the second edge line; the first side glue edge is the glue edge closer to the first edge line; the second side glue edge is the glue edge closer to the second edge line; the bottom glue edge is the glue edge located on the side facing the bend opening; the top glue edge is the glue edge located on the side opposite to the bend opening; the first distance information, the second distance information, the top distance information, and the bottom distance information are the maximum, average, or minimum values ​​of the distance from the glue edge point to the edge line; The epoxy resin detection result is determined based on the first distance information, the second distance information, the top distance information, and the bottom distance information.

2. The cell adhesive testing method as described in claim 1, characterized in that, Before acquiring the first distance information, second distance information, top distance information, and bottom distance information corresponding to the target image, the method further includes: Determine the first and second sides of the bend angle based on the target image; The third sideline is determined based on the first sideline and the second sideline; The first adhesive edge, the second adhesive edge, the top adhesive edge, and the bottom adhesive edge are determined based on the target image.

3. The cell adhesive testing method as described in claim 1, characterized in that, The step of determining the epoxy resin detection result based on the first distance information, the second distance information, the top distance information, and the bottom distance information includes: Determine whether the preset first, second, third, and fourth conditions are met; Wherein, the first condition indicates that the first distance information is within a first preset range, the second condition indicates that the second distance information is within a second preset range, the third condition indicates that the top distance information is within a third preset range, and the fourth condition indicates that the bottom distance information is within a fourth preset range; If any one of these conditions is not met, the epoxy resin test result is determined to be unqualified.

4. The cell adhesive testing method as described in claim 1, characterized in that, Before acquiring the first distance information, second distance information, top distance information, and bottom distance information corresponding to the target image, the method further includes: After the battery cell to be tested has completed the dispensing process, the battery cell to be tested is moved to the target area to acquire the target image.

5. The cell adhesive testing method as described in claim 1, characterized in that, After determining the epoxy resin detection result based on the first distance information, the second distance information, the top distance information, and the bottom distance information, the method further includes: If the battery cell to be tested is unqualified, the battery cell to be tested shall be transferred to the unqualified product station. If the battery cell to be tested is qualified, the battery cell to be tested will be transferred to the qualified product station.

6. A battery cell adhesive dispensing detection device, characterized in that, The device includes: The information acquisition module is used to acquire the first distance information, the second distance information, the top distance information, and the bottom distance information corresponding to the target image; Wherein, the target image is the image of the battery cell to be tested after the glue has been applied; the first distance information is the distance between the first edge line of the bend of the battery cell to be tested and the first side glue edge; the second distance information is the distance between the second edge line of the bend and the second side glue edge; the top distance information is the distance between the third edge line and the top glue edge; the bottom distance information is the distance between the third edge line and the bottom glue edge; the third edge line passes through the intersection of the first edge line and the second edge line; the first side glue edge is the glue edge closer to the first edge line; the second side glue edge is the glue edge closer to the second edge line; the bottom glue edge is the glue edge located on the side facing the bend opening; the top glue edge is the glue edge located on the side opposite to the bend opening; the first distance information, the second distance information, the top distance information, and the bottom distance information are the maximum, average, or minimum values ​​of the distance from the glue edge point to the edge line; The processing module is used to determine the epoxy resin detection result based on the first distance information, the second distance information, the top distance information, and the bottom distance information.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the method as described in any one of claims 1-5.

8. An electronic device, characterized in that, include: Processor and memory, the memory being used to store one or more programs; When the one or more programs are executed by the processor, the method as described in any one of claims 1-5 is implemented.

9. A dispensing system, characterized in that, include: An actuator and the electronic device of claim 8, wherein the actuator is used to complete the cell dispensing under the control of the electronic device.

Images