Battery seal thickness measuring assembly and battery seal thickness measuring device

Abstract

The utility model provides a kind of battery seal thickness measuring assembly and battery seal thickness measuring device.The battery seal thickness measuring assembly includes: first thickness measuring mechanism;Second thickness measuring mechanism, first thickness measuring mechanism and second thickness measuring mechanism are respectively arranged at the two sides of the seal to be detected, under the thickness measuring condition, first thickness measuring mechanism and second thickness measuring mechanism are configured to be able to move relatively with seal in the first direction, first thickness measuring mechanism and second thickness measuring mechanism are respectively contacted with the two side surfaces of seal, and first thickness measuring mechanism and second thickness measuring mechanism move synchronously.The technical scheme of the utility model solves the problem that the mechanical thickness measuring mode in the prior art is difficult to monitor the entire seal.

Description

Technical Field

[0001] This utility model relates to the field of battery equipment technology, and more specifically, to a battery sealing thickness measuring component and a battery sealing thickness measuring device. Background Technology

[0002] In the manufacturing process of pouch batteries, controlling the seal thickness is crucial. Batteries with poor seal thickness are likely to leak or corrode and become unusable during subsequent manufacturing or use.

[0003] Existing technologies typically employ mechanical methods to measure seal thickness. Specifically, after battery encapsulation, fixed measuring tools, such as micrometers, are used to measure several fixed points on the seal. However, this method only tests a few fixed points on the seal, making it difficult to monitor the entire seal. Consequently, some undetected areas may pose a risk of leakage or corrosion, rendering the seal unusable. Utility Model Content

[0004] The main purpose of this utility model is to provide a battery sealing thickness measurement component and a battery sealing thickness measurement device to solve the problem that the existing mechanical thickness measurement method is difficult to monitor the entire seal.

[0005] To achieve the above objectives, this utility model provides a battery seal thickness measurement component, comprising: a first thickness measurement mechanism; and a second thickness measurement mechanism. The first and second thickness measurement mechanisms are respectively disposed on both sides of the seal to be measured. Under thickness measurement conditions, the first and second thickness measurement mechanisms are configured to be able to move relative to the seal in a first direction. The first and second thickness measurement mechanisms are respectively in contact with the two side surfaces of the seal, and the first and second thickness measurement mechanisms move synchronously.

[0006] In some embodiments, both the first thickness measuring mechanism and the second thickness measuring mechanism include a thickness measuring probe and a rolling part. The rolling part is rotatably disposed at the end of the thickness measuring probe and forms a thickness measuring end. The battery sealing thickness measuring assembly makes rolling contact with the two sides of the seal through the thickness measuring end.

[0007] In some embodiments, in at least one of the first thickness measuring mechanism and the second thickness measuring mechanism, the rolling part is movably disposed on the thickness measuring probe along the second direction, and the thickness measuring probe is provided with an elastic element for providing an elastic force away from the thickness measuring probe to the rolling part, wherein the second direction is arranged at an angle to the first direction.

[0008] In some embodiments, the rolling portion includes any one of a roller, a ball bearing, and a ball.

[0009] In some embodiments, at least one of the first thickness measuring mechanism and the second thickness measuring mechanism further includes a thickness measuring instrument, which is electrically connected to the thickness measuring probe and also electrically connected to the host computer.

[0010] In some embodiments, the battery sealing thickness measurement assembly further includes two first moving mechanisms, one of which is configured to move the first thickness measurement mechanism along a first direction, and the other of which is configured to move the second thickness measurement mechanism along the first direction.

[0011] In some embodiments, the battery sealing thickness measurement assembly further includes two second moving mechanisms. The first thickness measurement mechanism and the second thickness measurement mechanism are respectively disposed on the two first moving mechanisms via the two second moving mechanisms. One of the two second moving mechanisms is configured to enable the first thickness measurement mechanism to move along a second direction, and the other of the two second moving mechanisms is configured to enable the second thickness measurement mechanism to move along a second direction.

[0012] According to another aspect of the present invention, the present invention provides a battery sealing thickness measuring device, comprising: the above-mentioned battery sealing thickness measuring component; a battery positioning clamp for holding the battery, the seal protruding from the battery positioning clamp, the battery positioning clamp being located between the first thickness measuring mechanism and the second thickness measuring mechanism.

[0013] In some embodiments, the battery positioning fixture includes two clamping members and a pivot member, the two clamping members being rotatably connected via the pivot member to clamp or release the battery.

[0014] In some embodiments, the two clamping members have accommodating grooves on their opposing sidewalls, and the two accommodating grooves can form a clamping cavity for placing the battery.

[0015] In some embodiments, the battery sealing thickness measuring device further includes a rotating mechanism, the rotating end of which is connected to the battery positioning fixture, and the rotating end is used to drive the battery to rotate relative to the battery sealing thickness measuring component.

[0016] By applying the technical solution of this utility model, the first thickness measuring mechanism and the second thickness measuring mechanism are configured to move synchronously with the seal in the first direction X and contact both sides of the seal. In this way, during the thickness measurement of the entire seal, the first thickness measuring mechanism and the second thickness measuring mechanism can contact the same position of the seal and simultaneously move relative to the seal and maintain continuous contact, thereby achieving continuous and uninterrupted thickness measurement of the entire seal to accurately monitor the thickness of all positions of the seal. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of an embodiment of the battery sealing thickness measurement component of this utility model is shown;

[0019] Figure 2 It shows Figure 1 A front view of the testing process for the battery seal thickness measurement component;

[0020] Figure 3 It shows Figure 1 A schematic diagram of the thickness measuring probe and the rolling part;

[0021] Figure 4 It shows Figure 1 A side view of the testing process for the battery seal thickness measurement component;

[0022] Figure 5 A schematic diagram of the structure of an embodiment of the battery positioning clamp of the battery sealing thickness measuring device of this utility model is shown;

[0023] Figure 6 A schematic diagram of an embodiment of the battery of this utility model is shown;

[0024] Figure 7 A schematic diagram of the testing process of an embodiment of the battery sealing thickness measuring device of this utility model is shown.

[0025] The above figures include the following reference numerals:

[0026] 10. First thickness measuring mechanism; 20. Second thickness measuring mechanism; 21. Thickness measuring probe; 22. Rolling part; 23. Thickness measuring instrument; 31. First moving mechanism; 32. Second moving mechanism; 1. Battery positioning fixture; 11. Receiving groove; 12. Pivot part; 13. Clamping part; 4. Battery; 41. Electrode; 42. Seal; 43. Main body. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the battery 4 includes a main body 43, a tab 41 connected to the main body 43, and a seal 42 disposed on the tab 41.

[0029] It should be noted that the first direction X and the second direction Y are set perpendicularly.

[0030] like Figures 1 to 7 As shown, an embodiment of the present invention provides a battery seal thickness measurement component, including: a first thickness measurement mechanism 10; and a second thickness measurement mechanism 20. The first thickness measurement mechanism 10 and the second thickness measurement mechanism 20 are respectively disposed on both sides of the seal 42 to be measured. Under the thickness measurement condition, the first thickness measurement mechanism 10 and the second thickness measurement mechanism 20 are configured to be able to move relative to the seal 42 in the first direction X and to contact the two side surfaces of the seal 42, and the first thickness measurement mechanism 10 and the second thickness measurement mechanism 20 move synchronously.

[0031] In the above technical solution, the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 are configured to move synchronously with the seal 42 in the first direction X and contact both sides of the seal 42. In this way, during the movement test of the thickness of the entire seal 42, the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 can contact the same position of the seal 42 and simultaneously move relative to the seal 42 and maintain continuous contact, thereby realizing continuous and uninterrupted thickness measurement of the entire seal 42 to accurately monitor the thickness of all positions of the seal 42.

[0032] It should be noted that the battery sealing thickness measurement component and battery 4 must maintain relative movement, and the moving party can be either battery 4 or the battery sealing thickness measurement component.

[0033] Specifically, along the second direction Y, the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 are respectively arranged on opposite sides of the battery seal 42, and both the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 are in contact with the surface of the seal 42.

[0034] In some embodiments, the first thickness measuring mechanism 10 can be moved while the second thickness measuring mechanism 20 remains stationary. The second thickness measuring mechanism 20 includes a reference block extending along the X direction. The reference block is a rectangular block structure, allowing one side of the seal 42 to be pressed against the reference block, so that the first thickness measuring mechanism 10 contacts the other side of the seal 42 to detect the thickness of the seal 42. Conversely, the first thickness measuring mechanism 10 can remain stationary while the second thickness measuring mechanism 20 moves. The first thickness measuring mechanism 10 includes a reference block extending along the X direction. The reference block is a rectangular block structure, allowing one side of the seal 42 to be pressed against the reference block, so that the second thickness measuring mechanism 20 contacts the other side of the seal 42 to detect the thickness of the seal 42.

[0035] like Figures 1 to 4 As shown in the embodiment of this utility model, both the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 include a thickness measuring probe 21 and a rolling part 22. The rolling part 22 is rotatably disposed at the end of the thickness measuring probe 21, and the rolling part 22 forms a thickness measuring end. The battery sealing thickness measuring assembly makes rolling contact with the two side surfaces of the seal 42 through the thickness measuring end.

[0036] In the above technical solution, during the battery sealing thickness measurement process, the addition of the rolling part 22 reduces friction when the thickness probe contacts the seal 42, protecting the seal 42 from damage. This avoids scratching the seal 42 during the measurement process and protects the overall performance of the battery.

[0037] like Figures 1 to 4 As shown in the embodiment of the present invention, in at least one of the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20, the rolling part 22 is movably disposed on the thickness measuring probe 21 along the second direction Y. The thickness measuring probe 21 is provided with an elastic element, which is used to provide an elastic force to the rolling part 22 away from the thickness measuring probe 21. The second direction Y is set at an angle to the first direction X.

[0038] With the above settings, the rolling part 22 can remain elastic as the thickness at the test position varies, thereby ensuring close contact between the rolling part 22 and the seal 42, thus improving the accuracy of the thickness test.

[0039] In some embodiments, the elastic element is a spring, the thickness probe 21 is a cylindrical structure with one end closed and the other end open, the rolling part 22 is movably disposed at the open end of the cylindrical structure, the cylindrical structure is provided with a spring, one end of the spring abuts against the closed end of the cylindrical structure, and the other end of the spring abuts against the rolling part 22.

[0040] like Figure 3 As shown in the embodiment of this utility model, the rolling part 22 includes any one of a roller, a ball bearing, and a ball. This prevents scratches on the seal 42 of the battery 4.

[0041] In some embodiments, the rolling part 22 is a sphere.

[0042] like Figure 1 As shown in the embodiment of this utility model, at least one of the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 further includes a thickness measuring instrument 23. The thickness measuring instrument 23 is electrically connected to the thickness measuring probe 21 and is also electrically connected to the host computer. In this way, the thickness data of the seal 42 can be recorded in real time.

[0043] In some embodiments, the first thickness measuring mechanism 10 is a height gauge. This application optimizes the probe structure of the testing instrument by adopting a shape similar to a ballpoint pen tip, and sets a freely rolling ball at the contact position between the probe structure and the seal 42 of the battery 4 to form the first thickness measuring mechanism 10.

[0044] In some embodiments, a spring may be provided between the thickness gauge 23 and the thickness probe 21.

[0045] In some embodiments, the first thickness measuring mechanism 10 includes a thickness measuring instrument 23 and a thickness measuring probe 21, and the second thickness measuring mechanism 20 includes a thickness measuring probe 21. Both thickness measuring probes 21 are provided with a rolling part 22.

[0046] like Figure 1 As shown in the embodiment of the present invention, the battery sealing thickness measurement component further includes two first moving mechanisms 31. One of the two first moving mechanisms 31 is configured to enable the first thickness measurement mechanism 10 to move along the first direction X, and the other of the two first moving mechanisms 31 is configured to enable the second thickness measurement mechanism 20 to move along the first direction X.

[0047] In the above technical solution, the addition of the first moving mechanism 31 enables the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 to move along the length of the seal 42, thereby achieving linear measurement of the seal thickness. This allows for thickness measurement along the entire length of the seal 42, which helps to identify potential thickness unevenness issues.

[0048] In some embodiments, the battery sealing thickness measurement assembly further includes a bracket, and the first moving mechanism 31 includes a first guide rail and a first slider that slides with the first guide rail. The first guide rail is disposed on the bracket, and the two first guide rails are arranged on opposite sides of the seal 42 along the second direction Y. The first thickness measurement mechanism 10 is mounted on one of the two first sliders, and the second thickness measurement mechanism 20 is mounted on the other of the two first sliders, so that the first thickness measurement mechanism 10 and the second thickness measurement mechanism 20 move along the first direction X on the surface of the seal 42 to perform real-time thickness measurement of the seal 42.

[0049] like Figure 1 As shown in the embodiment of this utility model, the battery sealing thickness measurement component further includes two second moving mechanisms 32. The first thickness measurement mechanism 10 and the second thickness measurement mechanism 20 are respectively disposed on the two first moving mechanisms 31 through the two second moving mechanisms 32. One of the two second moving mechanisms 32 is configured to enable the first thickness measurement mechanism 10 to move along the second direction Y, and the other of the two second moving mechanisms 32 is configured to enable the second thickness measurement mechanism 20 to move along the second direction Y.

[0050] In the above technical solution, the introduction of the second moving mechanism 32 increases the moving capability of the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 in the thickness direction of the seal 42. Through the adjustment of the second moving mechanism 32, the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 can adapt to seals of different thicknesses, ensuring the accuracy of measurement.

[0051] In some embodiments, the second moving mechanism 32 includes a second guide rail and a second slider that slides with the second guide rail. The two second guide rails are respectively connected to the two first sliders. The first thickness measuring mechanism 10 is installed on one of the two second sliders, and the second thickness measuring mechanism 20 is installed on the other of the two second sliders, so as to drive the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20 to move along the second direction Y.

[0052] like Figures 2 to 7 As shown, an embodiment of this utility model also provides a battery sealing thickness measuring device, including: the battery sealing thickness measuring component mentioned above; a battery positioning clamp 1 for holding the battery 4, the seal 42 protruding from the battery positioning clamp 1, and the battery positioning clamp 1 located between the first thickness measuring mechanism 10 and the second thickness measuring mechanism 20.

[0053] The above technical solution can ensure the stability of battery 4 during the measurement process, prevent battery 4 from shifting and being damaged, and ensure the correct position of battery during the measurement process by clamping battery positioning fixture 1, so that the seal 42 of battery 4 can be accurately aligned with the thickness measuring end, thereby improving the accuracy of measurement.

[0054] like Figures 5 to 7 As shown in the embodiment of this utility model, the battery positioning clamp 1 includes two clamping members 13 and a pivot member 12. The two clamping members 13 are rotatably connected through the pivot member 12 to clamp or release the battery 4. In this way, it can be used to clamp the battery 4.

[0055] In some embodiments, the clamping member 13 is a clamping plate, the pivot member 12 is a hinge, and the two clamping plates are connected by the hinge.

[0056] like Figures 5 to 7 As shown in the embodiment of this utility model, the two clamping members 13 are provided with receiving grooves 11 on their facing sidewalls, and the two receiving grooves 11 can form a clamping cavity for placing the battery 4. In this way, the battery 4 can be accommodated, so as to clamp the battery 4 more stably.

[0057] In some embodiments, the main body 43 of the battery 4 is placed in the receiving groove 11, and the two clamps are closed to fix the main body 43 in the clamping cavity, wherein the seal 42 is exposed outside the clamps (e.g., Figure 7 ).

[0058] like Figures 5 to 7 As shown in the embodiment of this utility model, the battery sealing thickness measuring device further includes a rotating mechanism. The rotating end of the rotating mechanism is connected to the battery positioning clamp 1, and the rotating end is used to drive the battery 4 to rotate relative to the battery sealing thickness measuring component.

[0059] In the above technical solution, if it is necessary to test the thickness of other sealing edges of battery 4, the battery positioning fixture 1 can be installed on the rotating mechanism. Driven by the rotating mechanism, the battery can rotate around its own axis to adjust the orientation of battery 4 for testing.

[0060] In some embodiments, the rotating mechanism includes a frame and a motor and a rotating platform disposed on the frame. The motor is used as a power source, and the output end of the motor drives a rotating platform to rotate relative to the frame through gear transmission, belt transmission or direct connection. The rotating platform forms a rotating end, and the battery positioning fixture 1 is fixed on the rotating platform. When the motor rotates, the rotating platform rotates together with the battery positioning fixture 1 and the battery, thereby realizing the thickness measurement of different sides of the battery seal.

[0061] In some embodiments, where high-precision automatic control is not required, a manual rotation mechanism can be designed. This mechanism includes a frame, a rotating handle, a rotating shaft, and a mounting plate mounted on the frame. The rotating shaft is rotatably mounted on the frame. The rotating handle is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the mounting plate. The battery positioning clamp 1 is fixed to the mounting plate. Thus, the operator can operate the rotating handle to rotate the mounting plate and the battery positioning clamp 1 mounted thereon, thereby changing the angle of the battery. It should be noted that the specific structure of the rotation mechanism can utilize existing technology, which will not be elaborated here.

[0062] Specifically, by using a test probe with a ballpoint pen tip structure and testing the seal thickness in motion, the thickness of the entire seal 42 can be measured, achieving point-to-line testing. Compared with the existing technology that uses laser thickness measurement, which results in high equipment costs and poor test data reliability, the battery seal thickness measurement device of this application has low measurement costs and good monitoring effect on the thickness of the entire seal 42.

[0063] It should be noted that the implementation process of the battery seal thickness measuring device of this application is as follows: the battery 4 is placed and fixed in the battery positioning fixture 1 and reaches the test position. The thickness measuring probe 21 of the first thickness measuring mechanism 10 is pressed down, while the thickness measuring probe 21 of the second thickness measuring mechanism 20 is raised, respectively contacting the two sides of the seal 42 of the battery 4, and the thickness of the seal 42 is tested. As the thickness measuring instrument 23 moves left or right continuously, the thickness of the entire seal 42 is tested (e.g., ...). Figure 1 and Figure 2 Meanwhile, the host computer records the test thickness data in real time until the battery 4 moves out of the designated test position and the test ends. The thickness probe 21 of the first thickness measuring mechanism 10 and the thickness probe 21 of the second thickness measuring mechanism 20 are raised or lowered and returned to the initial test position, and the test ends.

[0064] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: the first thickness measuring mechanism and the second thickness measuring mechanism are configured to move synchronously with the seal in the first direction X and contact both sides of the seal. In this way, during the movement test of the thickness of the entire seal, the first thickness measuring mechanism and the second thickness measuring mechanism can contact the same position of the seal and simultaneously move relative to the seal and maintain contact, thereby achieving continuous and uninterrupted thickness measurement of the entire seal to accurately monitor the thickness of all positions of the seal.

[0065] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery pot-off gauge thickness assembly, characterized by, include: First thickness measuring mechanism (10); Second thickness measuring mechanism (20), The first thickness measuring mechanism (10) and the second thickness measuring mechanism (20) are respectively disposed on both sides of the seal (42) to be tested. Under the thickness measuring condition, the first thickness measuring mechanism (10) and the second thickness measuring mechanism (20) are configured to be able to move relative to the seal (42) in the first direction (X). The first thickness measuring mechanism (10) and the second thickness measuring mechanism (20) are respectively in contact with the two side surfaces of the seal (42). The first thickness measuring mechanism (10) and the second thickness measuring mechanism (20) move synchronously.

2. The battery potoff gauge assembly of claim 1, wherein, Both the first thickness measuring mechanism (10) and the second thickness measuring mechanism (20) include a thickness measuring probe (21) and a rolling part (22). The rolling part (22) is rotatably disposed at the end of the thickness measuring probe (21) and forms a thickness measuring end. The battery sealing thickness measuring assembly makes rolling contact with the two side surfaces of the seal (42) through the thickness measuring end.

3. The battery potoff gauge assembly of claim 2, wherein, In at least one of the first thickness measuring mechanism (10) and the second thickness measuring mechanism (20), its rolling part (22) is movably disposed on the thickness measuring probe (21) along the second direction (Y). The thickness measuring probe (21) is provided with an elastic element, which is used to provide an elastic force to the rolling part (22) away from the thickness measuring probe (21). The second direction (Y) is set at an angle to the first direction (X).

4. The battery potoff gauge assembly of claim 2, wherein, The rolling part (22) includes any one of a roller, a ball bearing, and a ball.

5. The battery potoff gauge assembly of claim 2, wherein, At least one of the first thickness measuring mechanism (10) and the second thickness measuring mechanism (20) further includes a thickness measuring instrument (23), which is electrically connected to the thickness measuring probe (21) and is also electrically connected to the host computer.

6. The battery potoff gauge assembly of any one of claims 1 to 5, wherein, The battery sealing thickness measurement assembly further includes two first moving mechanisms (31), one of which is configured to enable the first thickness measurement mechanism (10) to move along the first direction (X), and the other of which is configured to enable the second thickness measurement mechanism (20) to move along the first direction (X).

7. The battery potoff gauge assembly of claim 6, wherein, The battery sealing thickness measurement assembly further includes two second moving mechanisms (32). The first thickness measurement mechanism (10) and the second thickness measurement mechanism (20) are respectively mounted on the two first moving mechanisms (31) via the two second moving mechanisms (32). One of the two second moving mechanisms (32) is configured to enable the first thickness measurement mechanism (10) to move along the second direction (Y), and the other of the two second moving mechanisms (32) is configured to enable the second thickness measurement mechanism (20) to move along the second direction (Y).

8. A battery seal thickness gauge, comprising: include: Battery sealing thickness measurement assembly as described in any one of claims 1 to 7; A battery positioning clamp (1) is used to hold a battery (4). The seal (42) protrudes from the battery positioning clamp (1). The battery positioning clamp (1) is located between the first thickness measuring mechanism (10) and the second thickness measuring mechanism (20).

9. The battery gage of claim 8, wherein, The battery positioning clamp (1) includes two clamping members (13) and a pivot member (12). The two clamping members (13) are rotatably connected through the pivot member (12) so as to clamp or release the battery (4).

10. The battery gage of claim 9, wherein, The two clamping members (13) are provided with receiving grooves (11) on their sidewalls facing each other, and the two receiving grooves (11) can form a clamping cavity for placing the battery (4).

11. The battery gage of claim 9, wherein, The battery sealing thickness measuring device also includes a rotating mechanism. The rotating end of the rotating mechanism is connected to the battery positioning fixture (1). The rotating end is used to drive the battery (4) to rotate relative to the battery sealing thickness measuring component.

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