Cylindrical battery groove adjusting method, electronic device and computer readable storage medium

Abstract

The application discloses a cylindrical battery groove adjusting method, electronic equipment and a computer readable storage medium. Wherein, the cylindrical battery groove adjusting method comprises: S1, determining the groove processing profile of the battery, and sequentially dividing the shell of the battery in the first direction into the roll core containing part, the groove part and the shell mouth part; the roll core containing part is used for containing the roll core of the battery, the side wall of the groove part is formed by the hob to process the groove, the shell mouth part is used for fixing the cover plate of the battery, the cover plate is sleeved with the sealing ring used for sealing the shell mouth part; S2, judging whether the deformation amount of the insulating sheet of the roll core is within the first preset range, if yes, determining the length of the roll core containing part in the first direction and the feed amount of the hob, and executing step S3; S3, judging whether the difference between the thickness of the sealing ring and the length of the shell mouth part in the first direction is within the second preset range, if yes, determining the length of the shell mouth part in the first direction. The application simplifies the groove adjusting process of the cylindrical battery.

Description

Technical Field

[0001] This application relates to the field of cylindrical battery grooving, and more particularly to cylindrical battery grooving adjustment methods, electronic devices, and computer-readable storage media. Background Technology

[0002] Cylindrical batteries are generally sealed using laser sealing or mechanical sealing. In the mechanical sealing process, the grooving process before sealing is particularly critical, as it determines the structural compliance of the semi-finished product before sealing. Therefore, the grooving process is a critical process that requires strict control during battery assembly. However, adjusting its process parameters has far-reaching consequences, with a small process window and many variable factors, making the grooving adjustment process for cylindrical batteries quite complex and resulting in low adjustment efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a method for adjusting the grooving of cylindrical batteries, which can solve the technical problem that adjusting the parameters of the cylindrical battery grooving process has a ripple effect and involves many variable factors, making the grooving adjustment process of cylindrical batteries quite complex.

[0004] To achieve the above objectives, this application provides a method for adjusting the grooves in a cylindrical battery, comprising:

[0005] S1, determine the grooving profile of the battery, and divide the battery casing into a core receiving part, a grooving part and a casing opening part in the first direction in sequence; the core receiving part is used to receive the core of the battery, the side wall of the grooving part is formed by a hobbing cutter to form a groove, and the casing opening part is used to fix the cover plate of the battery, and the cover plate is fitted with a sealing ring for sealing the casing opening part.

[0006] S2, determine whether the deformation of the insulating sheet of the core is within a first preset range. If so, determine the length of the core receiving portion in the first direction and the feed amount of the roller, and execute step S3.

[0007] S3, determine whether the difference between the thickness of the sealing ring and the length of the shell opening in the first direction is within a second preset range; if so, determine the length of the shell opening in the first direction.

[0008] Compared with existing technologies, this application determines the grooving profile of the battery, judges whether the deformation of the insulating sheet of the core is within a first preset range, and if so, determines the length of the core receiving portion in the first direction and the cutting depth of the roller; it also judges whether the difference between the thickness of the sealing ring and the length of the shell opening in the first direction is within a second preset range, and if so, determines the length of the shell opening in the first direction. By first determining the length of the core receiving portion in the first direction and the cutting depth of the roller, and then determining the length of the shell opening in the first direction, i.e., by first systematically determining some of the variation factors of the cylindrical battery and then adjusting other variation factors, the grooving process avoids the situation where adjusting one parameter affects the whole process, simplifies the grooving adjustment process of cylindrical batteries, and improves the adjustment efficiency of the grooving process. Moreover, since it is not necessary to pay attention to other parameters when adjusting some parameters, the focus can be concentrated on the adjustment, thus effectively addressing the problem of the small process window in the grooving adjustment process.

[0009] Optionally, before step S2, the method further includes:

[0010] The length of the core receiving portion in the first direction is initialized based on the length of the core in the first direction, the thickness of the bottom wall of the housing, and the thickness of the side wall of the housing.

[0011] Optionally, the initial value of the length of the core receiving portion in the first direction is equal to the sum of the length of the battery core in the first direction, the thickness of the bottom wall of the housing, and the thickness of the side wall of the housing.

[0012] Optionally, determining whether the deformation of the insulating sheet of the core is within a first preset range further includes:

[0013] If the judgment result is negative, the machining position of the hob on the housing is adjusted along the first direction to adjust the length of the core receiving portion in the first direction, and the feed amount of the hob is adjusted, and step S2 is executed again.

[0014] Optionally, when the deformation of the insulating sheet is less than the lower limit of the first preset range, the length of the core receiving portion in the first direction is reduced and the feed amount of the roller is increased;

[0015] Optionally, when the deformation of the insulating sheet is greater than the upper limit of the first preset range, the length of the core receiving portion in the first direction is increased and the feed amount of the roller is reduced.

[0016] Optionally, the deformation of the insulating sheet of the core is obtained by analyzing a cross-section of the battery taken along the first direction.

[0017] Optionally, determining whether the difference between the thickness of the sealing ring and the length of the shell opening in the first direction is within a second preset range further includes:

[0018] If the judgment result is negative, the width of the hob face is adjusted and the machining position parameters of the hob on the housing are adjusted along the first direction to adjust the length of the housing opening in the first direction, and step S3 is executed again.

[0019] Optionally, before step S3, the method further includes:

[0020] Initialize the length of the casing opening in the first direction, whereby the initial value of the casing opening is equal to the length of the battery cover in the first direction.

[0021] To achieve the above objectives, this application also provides an electronic device, comprising:

[0022] processor;

[0023] A memory in which executable instructions of the processor are stored;

[0024] The processor is configured to execute the above-described cylindrical battery grooving adjustment method by executing the executable instructions.

[0025] To achieve the above objectives, this application also provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the above-described cylindrical battery groove adjustment method. Attached Figure Description

[0026] Figure 1 This is a schematic flowchart of the cylindrical battery groove adjustment method according to an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the cylindrical battery structure according to an embodiment of this application.

[0028] Figure 3 and Figure 4 This is another flowchart illustrating the cylindrical battery groove adjustment method according to an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0030] To explain in detail the technical content, structural features, objectives and effects of this application, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0031] Please see Figure 1 and Figure 2 This application discloses a method for adjusting the grooves in a cylindrical battery, comprising:

[0032] Step S1: Determine the grooving profile of the battery. Divide the battery casing 1 into a core housing 11, a grooving section 12, and a casing opening 13 in the first direction. The core housing 11 houses the battery core 2. The sidewall of the grooving section 12 is machined into a groove 121 by a hobbing cutter. The casing opening 13 is used to fix the battery cover plate 4, and a sealing ring 5 is fitted on the cover plate 4 to seal the casing opening 13. The grooving section 12 serves as the transition area between the core housing 11 and the casing opening 13, adjusting the process window and controlling the length of the battery in the first direction during the battery pressing process after sealing. When the hobbing cutter processes the battery, the width of the groove 121 can be adjusted by adjusting the width of the hobbing cutter's blade and the depth of the hobbing cutter's infeed (i.e., the depth to which the hobbing cutter cuts into the casing 1).

[0033] When the battery is machined by the hobbing cutter, the casing 1 is compressed by the hobbing cutter, and part of the sidewall of the casing 1 is pressed into the groove by the hobbing cutter. The length of the casing 1 in the first direction will be reduced, and the reduced length is approximately equal to twice the feed rate of the hobbing cutter. Therefore, the length of the casing 1 in the first direction before the groove machining is:

[0034]

[0035] in, The length of housing 1 in the first direction after processing. The length of the opening portion 13 in the first direction. The width of the groove 121 is... This refers to the feed rate of the hob. The length of the core receiving portion 11 in the first direction is given. Therefore, since all the parameters mentioned above are determined during the adjustment of the rolling groove, and the radius of the housing is constant, the basic shape of the housing can also be determined.

[0036] Therefore, when the length of the core receiving portion 11 in the first direction, the feed amount of the roller cutter, and the length of the shell opening portion 13 in the first direction are determined, the position of the groove 121, the groove width of the groove 121, and the length in the first direction before shell processing can be determined, and the battery can then be formally grooved.

[0037] It should be noted that in this application, the first direction refers to the axial direction of the cylindrical battery.

[0038] Step S2: Determine whether the deformation of the insulating sheet 3 on the core 2 (located at the end of the core 2 away from the bottom wall of the housing 1) is within a first preset range. If so, determine the length of the core receiving portion 11 in the first direction and the feed amount of the roller cutter, and execute step S3. During the processing of the battery by the roller cutter, the housing 1 is compressed by the roller cutter, and its length in the first direction decreases. At this time, the insulating sheet 3 of the core 2 is easily deformed by the compression of the core 2 and the housing 1. If the deformation of the insulating sheet 3 is controlled within a suitable range, the core 2 can be kept under appropriate pressure (when the core 2 is subjected to excessive external pressure, its diaphragm and electrode sheets are easily damaged, resulting in the risk of internal short circuit in the core 2), and remain in a fixed state. Furthermore, if the core 2 retains sufficient deformation compression allowance, it can also avoid excessive pressure on the core 2 when sealing the battery.

[0039] In some embodiments, prior to step S2, the method further includes:

[0040] The length of the core accommodating part 11 in the first direction is initialized based on the length of the core 2 in the first direction, the thickness of the bottom wall of the housing 1, and the thickness of the side wall of the housing 1.

[0041] Specifically, the initial value of the length of the core housing 11 in the first direction is equal to the sum of the length of the battery core 2 in the first direction, the thickness of the bottom wall of the housing 1, and the thickness of the side wall of the housing 1.

[0042] Please see Figure 2 and Figure 3 In some embodiments, determining whether the deformation of the insulating sheet 3 of the core 2 is within a first preset range further includes:

[0043] If the judgment result is negative, the machining position of the hob on the housing 1 is adjusted along the first direction to adjust the length of the core receiving part 11 in the first direction, and the feed amount of the hob is adjusted and step S2 is executed again.

[0044] Specifically, when the deformation of the insulating sheet 3 is less than the lower limit of the first preset range, the length of the core receiving portion 11 in the first direction is reduced and the feed amount of the roller is increased.

[0045] Specifically, when the deformation of the insulating sheet 3 is greater than the upper limit of the first preset range, the length of the core receiving portion 11 in the first direction is increased and the feed amount of the roller is reduced.

[0046] Optionally, the first preset range is 0.5~1.0mm.

[0047] Optionally, the feed rate of the hob is between 1.5 and 3 mm.

[0048] Optionally, the sidewall thickness at the location of the groove 121 on the housing 1 is greater than or equal to 70% of the sidewall thickness at that location on the housing 1 before hobbing, to avoid the risk of leakage due to excessive stretching of the housing 1.

[0049] In some embodiments, the deformation of the insulating sheet 3 of the core 2 is obtained by analyzing a cross-section of the battery taken along the first direction.

[0050] Step S3: Determine whether the difference between the thickness of the sealing ring 5 and the length of the shell opening 13 in the first direction is within a second preset range. If so, determine the length of the shell opening 13 in the first direction.

[0051] In some embodiments, prior to step S3, the method further includes:

[0052] The length of the opening 13 in the first direction is initialized, and the initial value of the length of the opening 13 in the first direction is equal to the length of the cover plate 4 of the battery in the first direction.

[0053] Please see Figure 2 and Figure 4 In some embodiments, determining whether the difference between the length of the sealing ring 5 of the battery cover 4 in the first direction and the length of the casing opening 13 in the first direction is within a second preset range further includes:

[0054] If the judgment result is negative, adjust the width of the cutter face to adjust the length of the shell opening 13 in the first direction, and repeat step S3.

[0055] Optionally, the second preset range is 0.5~1.5mm, ensuring that the sealing ring 5 extends appropriately beyond the shell opening 13, thereby ensuring that after the shell opening 13 is sealed with the sealing ring 5, the sealing ring 5 protrudes to the edge of the shell 1 to ensure the airtightness of the seal.

[0056] Compared with the prior art, this application uses a roller cutter to process the battery, determining whether the deformation of the insulating sheet 3 of the core 2 is within a first preset range. If so, the length of the core receiving portion 11 in the first direction and the cutting depth of the roller cutter are determined. Similarly, the application determines whether the difference between the thickness of the sealing ring 5 and the length of the shell opening portion 13 in the first direction is within a second preset range. If so, the length of the shell opening portion 13 in the first direction is determined. By first determining the length of the core receiving portion 11 in the first direction and the cutting depth of the roller cutter, and then determining the length of the shell opening portion 13 in the first direction—that is, by first systematically determining some of the variation factors of the cylindrical battery and then adjusting other variation factors—the application avoids the situation where adjusting one parameter affects the entire process, simplifies the grooving adjustment process of the cylindrical battery, improves the adjustment efficiency of the grooving adjustment process, and, since adjusting some parameters does not require attention to others, the application can focus on adjusting only the relevant parameters, thus effectively addressing the problem of a small process window in the grooving adjustment process. Furthermore, the cylindrical battery groove adjustment method of this application is applicable to all cylindrical structure designs with mechanically sealed grooves, and is not limited to shells made of materials such as steel or aluminum, thus having a wide range of applications.

[0057] It is understood that the cylindrical battery groove adjustment method of this application can be carried out in reality or simulated on electronic devices such as computers.

[0058] Please see Figure 5 This application also discloses an electronic device, including:

[0059] Processor 30;

[0060] Memory 40, which stores executable instructions of processor 30;

[0061] The processor 30 is configured to perform the cylindrical battery grooving adjustment method described above.

[0062] This application also discloses a computer-readable storage medium storing a program thereon, which, when executed by processor 30, implements the above-described cylindrical battery groove adjustment method.

[0063] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the scope of this application shall still fall within the scope of this application.

Claims

1. A method for adjusting the grooves in a cylindrical battery, characterized in that, include: S1, determine the grooving profile of the battery, and divide the battery casing into a core receiving part, a grooving part and a casing opening part in the first direction in sequence; the core receiving part is used to receive the core of the battery, the side wall of the grooving part is formed by a hobbing cutter to form a groove, and the casing opening part is used to fix the cover plate of the battery, and the cover plate is fitted with a sealing ring for sealing the casing opening part. S2, determine whether the deformation of the insulating sheet of the core is within a first preset range. If so, determine the length of the core receiving portion in the first direction and the feed amount of the roller, and execute step S3. S3, determine whether the difference between the thickness of the sealing ring and the length of the shell opening in the first direction is within a second preset range; if so, determine the length of the shell opening in the first direction.

2. The cylindrical battery groove adjustment method as described in claim 1, characterized in that, Before step S2, the following is also included: The length of the core receiving portion in the first direction is initialized based on the length of the core in the first direction, the thickness of the bottom wall of the housing, and the thickness of the side wall of the housing.

3. The cylindrical battery groove adjustment method as described in claim 2, characterized in that, The initial value of the length of the core receiving portion in the first direction is equal to the sum of the length of the battery core in the first direction, the thickness of the bottom wall of the housing, and the thickness of the side wall of the housing.

4. The cylindrical battery groove adjustment method as described in claim 1, characterized in that, The step of determining whether the deformation of the insulating sheet of the core is within a first preset range further includes: If the judgment result is negative, the machining position of the hob on the housing is adjusted along the first direction to adjust the length of the core receiving portion in the first direction, and the feed amount of the hob is adjusted, and step S2 is executed again.

5. The cylindrical battery groove adjustment method as described in claim 4, characterized in that, When the deformation of the insulating sheet is less than the lower limit of the first preset range, the length of the core receiving portion in the first direction is reduced and the feed amount of the roller is increased; And / or, When the deformation of the insulating sheet is greater than the upper limit of the first preset range, the length of the core receiving portion in the first direction is increased and the feed amount of the roller is reduced.

6. The cylindrical battery groove adjustment method as described in claim 1, characterized in that, The deformation of the insulating sheet of the core is obtained by analyzing a cross-section of the battery taken along the first direction.

7. The cylindrical battery groove adjustment method as described in claim 1, characterized in that, Determining whether the difference between the thickness of the sealing ring and the length of the shell opening in the first direction is within a second preset range further includes: If the judgment result is negative, the width of the hob face is adjusted and the machining position parameters of the hob on the housing are adjusted along the first direction to adjust the length of the housing opening in the first direction, and step S3 is executed again.

8. The cylindrical battery groove adjustment method as described in claim 1, characterized in that, Before step S3, the procedure also includes: Initialize the length of the casing opening in the first direction, whereby the initial value of the casing opening is equal to the length of the battery cover in the first direction.

9. An electronic device, characterized in that, include: processor; A memory in which executable instructions of the processor are stored; The processor is configured to perform the cylindrical battery grooving adjustment method according to any one of claims 1 to 8 by executing the executable instructions.

10. A computer-readable storage medium having a program stored thereon, characterized in that, When the program is executed by the processor, it implements the cylindrical battery groove adjustment method according to any one of claims 1 to 8.

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