Cell thickness testing device for square-shell lithium ion battery

Abstract

The utility model discloses a square shell lithium ion battery cell thickness testing device, which comprises an equipment supporting seat, a supporting platform and a lithium battery thickness measuring platform, the lithium battery thickness measuring platform is divided into a lower layer lithium battery thickness measuring platform and an upper layer platform, and a lithium battery is placed on the lower layer lithium battery thickness measuring platform; the thickness testing assembly is integrated between the upper-layer platform and the lower-layer lithium battery thickness testing platform; the thickness testing assembly can measure the thickness of the lithium battery cell on the lower lithium battery thickness measuring platform. When the testing device provided by the utility model is used and the battery cell entering a shell is transferred to a thickness measuring station through the tray, the thickness measuring device can measure the thickness of the battery cell in real time with high precision and high efficiency, so that the problems of low measuring precision, low efficiency, incapability of real-time detection and the like in the traditional battery thickness measurement are solved; and manpower and detection cost are reduced, the size of the battery is ensured to accord with the specification, and many problems of traditional manual testing of an enterprise are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of square shell lithium ion battery detection, in particular to a cell thickness testing device for square shell lithium ion batteries. Background Art

[0002] With the rapid development of science and technology, the demand for electronic products, electric vehicles and other fields is growing. As a core component, the performance and safety of batteries are receiving more and more attention. Therefore, the detection of battery parameters such as thickness, capacity, internal resistance, etc. has put forward higher requirements. Battery thickness testing is a very important link in battery production and research and development, because the thickness of the battery directly affects the performance and stability of the battery. During the production process, measuring the thickness of the battery can ensure that the size of the battery meets the specifications, and it can also check whether there are bad battery components or manufacturing process defects. In research and development, by testing the thickness of the battery, the internal structure and material composition of the battery can be better understood and analyzed, and then corresponding optimization and improvement can be made. In addition, the battery thickness test can also help determine parameters such as the battery life and number of cycles, as well as predict its performance and power output under different working conditions.

[0003] The detection methods in the existing technology have great limitations. In terms of the thickness detection of square shell batteries, traditional detection methods such as calipers and micrometers have problems such as low measurement accuracy, low efficiency, and inability to detect in real time. In addition, traditional detection methods usually require manual operation, which is easy to introduce errors and cannot meet the needs of automated production lines.

[0004] Therefore, based on the above technical problems, technicians in this field urgently need to develop a cell thickness testing device for square shell lithium-ion batteries. Utility Model Content

[0005] The purpose of the utility model is to provide a cell thickness test device for square-shell lithium-ion batteries, which effectively solves the problems of low measurement accuracy, low efficiency, and inability to detect in real time in traditional battery thickness measurement. The device helps to improve the quality and efficiency of the battery production process, ensure battery performance and safety, reduce manpower and detection costs, and ensure the high accuracy, high efficiency, and real-time detection requirements of lithium-ion battery thickness measurement.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a cell thickness testing device for a square-shell lithium-ion battery, the cell thickness testing device comprising:

[0008] Equipment support base;

[0009] A support platform supported on the upper end of the equipment support base, wherein the support platform has a thickness measuring equipment base; and

[0010] A lithium battery thickness measuring platform integrated in the base of the thickness measuring device, wherein the lithium battery thickness measuring platform is divided into a lower lithium battery thickness measuring platform connected to the base of the thickness measuring device and an upper platform located directly above the lower lithium battery thickness measuring platform, and the lithium battery is placed on the lower lithium battery thickness measuring platform;

[0011] The battery cell thickness testing device also includes:

[0012] A cylinder driving the upper platform to move in a vertical direction; and

[0013] A thickness testing component integrated between the upper platform and the lower lithium battery thickness measuring platform;

[0014] When the cylinder drives the upper platform to move downward, the thickness testing assembly can measure the thickness of the lithium battery cell located on the lower lithium battery thickness measuring platform.

[0015] Furthermore, an outer frame is provided outside the battery cell thickness testing device, and the material of the outer frame is acrylic material;

[0016] One side of the battery cell thickness testing device is provided with a thickness measuring operating table, and the thickness measuring operating table is provided with two-handed operation buttons;

[0017] The thickness measuring operating table is provided with a keyboard placement position;

[0018] The battery cell thickness testing device has a display screen and a switch button on the outside.

[0019] Furthermore, the lithium battery thickness measurement platform also includes:

[0020] Top platform;

[0021] The lower lithium battery thickness measuring platform, the upper platform and the top platform are all marble platforms;

[0022] A support rod is provided between the top platform and the base of the thickness measuring device;

[0023] A buffer component is provided between the upper platform and the thickness measuring device base, and the buffer component comprises:

[0024] Buffer springs evenly distributed at the four corners of the upper platform;

[0025] The cylinder body of the cylinder is fixed to the lower surface of the top platform, and the cylinder rod of the cylinder is connected to the upper platform to drive the upper platform to move in the vertical direction.

[0026] Furthermore, the thickness testing assembly comprises:

[0027] A thickness testing probe installed on the lower surface of the upper platform; and

[0028] A probe base mounted on the thickness measuring device base and matching the corresponding thickness test probe position;

[0029] When the upper platform moves downward in the vertical direction, the thickness test probe contacts the probe base and measures the thickness of the battery cell;

[0030] Two groups of thickness testing components are symmetrically arranged on any two sides of the upper platform.

[0031] Furthermore, an anti-collision cylinder is provided on the base of the thickness measuring device, and an infrared probe is provided at a position of the base of the thickness measuring device close to the anti-collision cylinder;

[0032] The anti-collision cylinder is electrically connected to the infrared probe, and the infrared probe is connected to the device alarm system;

[0033] When the upper platform transitions downward, the upper platform contacts the anti-collision cylinder and triggers the infrared probe to sense and trigger the alarm system.

[0034] Furthermore, a safety grating is provided on one side of the outer frame close to the thickness measuring operating table.

[0035] In the above technical solution, the utility model provides a cell thickness testing device for square shell lithium-ion batteries, which has the following beneficial effects:

[0036] When the testing device of the utility model is used, when the battery cell after being put into the shell is transferred to the thickness measuring station through the tray, the thickness measuring device can measure the thickness of the battery cell in real time, with high precision and high efficiency, thus solving the problems of low measurement precision, low efficiency and inability to detect in real time existing in the traditional battery thickness measurement, and reducing the manpower and detection costs, ensuring that the size of the battery meets the specifications, and solving many problems of the traditional manual testing of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0038] Figure 1 A schematic diagram of the structure of a cell thickness testing device for a square-shell lithium-ion battery provided in an embodiment of the utility model;

[0039] Figure 2 This is an enlarged structural diagram of a thickness testing component and an anti-collision component of a cell thickness testing device for a square-shell lithium-ion battery provided in an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 1. Outer frame; 2. Equipment support base; 3. Keyboard placement; 4. Thickness measurement operating table; 5. Two-handed operation buttons; 6. Display screen and power button; 7. Support platform; 8. Thickness measurement equipment base; 9. Support rod; 10. Cylinder; 11. Buffer spring; 12. Buffer assembly; 13. Thickness test probe; 14. Probe base; 15. Anti-collision cylinder; 16. Infrared probe; 17. Safety grating;

[0042] 1801, lower lithium battery thickness measuring platform; 1802, upper platform; 1803, top platform. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] See also Figure 1 to Figure 2 As shown;

[0045] This embodiment discloses a cell thickness test device for a square-shell lithium-ion battery, the cell thickness test device comprising:

[0046] Equipment support seat 2;

[0047] A support platform 7 supported on the upper end of the equipment support base 2, and a thickness measuring equipment base 8 is provided on the support platform 7; and

[0048] A lithium battery thickness measuring platform integrated in the thickness measuring device base 8, the lithium battery thickness measuring platform is divided into a lower lithium battery thickness measuring platform 1801 connected to the thickness measuring device base 8 and an upper platform 1802 located directly above the lower lithium battery thickness measuring platform 1801, and the lithium battery is placed on the lower lithium battery thickness measuring platform 1801;

[0049] The battery cell thickness testing device also includes:

[0050] A cylinder 10 that drives the upper platform 1802 to move in the vertical direction; and

[0051] A thickness testing component integrated between the upper platform 1802 and the lower lithium battery thickness measuring platform 1801;

[0052] When the cylinder 10 drives the upper platform 1802 to move downward, the thickness testing assembly can measure the thickness of the lithium battery cells located on the lower lithium battery thickness measuring platform 1801.

[0053] Specifically, the present embodiment discloses a testing device for measuring the thickness of a lithium-ion battery cell; the bottom of the testing device is supported by a device support seat 2, the upper end of the device support seat 2 is supported by a supporting platform 7, a thickness measuring device base 8 is carried by the supporting platform 7, and then a lower lithium battery thickness measuring platform 1801 is mounted on the thickness measuring device base 8, and an upper platform 1802 is arranged directly above the lower lithium battery thickness measuring platform 1801. The lower lithium battery thickness measuring platform 1801 of the present embodiment is used to place the lithium-ion battery cells to be measured for thickness, and the cells after being put into the shell are transferred to the thickness measuring station through a tray, and then are grabbed by a manipulator and placed on the lower lithium battery thickness measuring platform 1801. At this time, the upper platform 1802 moves downward under the drive of the driving component, and since a thickness testing component is arranged between the two, when the upper platform 1802 moves downward, the thickness testing component contacts and the thickness of the cells can be measured in real time.

[0054] Preferably, the battery cell thickness testing device of this embodiment is provided with an outer frame 1 on the outside, and the material of the outer frame 1 is acrylic material;

[0055] One side of the cell thickness testing device is provided with a thickness measuring operating table 4, on which a two-hand operating button 5 is provided;

[0056] The thickness measuring operation table 4 is provided with a keyboard placement position 3;

[0057] The battery cell thickness testing device has a display screen and a switch button 6 on the outside.

[0058] First, this embodiment further defines the main body of the device. The exterior of the device of this embodiment is an outer frame 1, which is made of acrylic material. In order to facilitate the operation of the operator, a thickness measuring operating table 4 and a keyboard placement position 6 are provided on one side of the outer frame 1, and a two-handed operation button 5 is provided.

[0059] Preferably, the lithium battery thickness measuring platform of this embodiment further includes:

[0060] Top platform 1803;

[0061] The lower lithium battery thickness measuring platform 1801, the upper platform 1802 and the top platform 1803 are all marble platforms;

[0062] A support rod 9 is provided between the top platform 1803 and the thickness measuring device base 8;

[0063] A buffer assembly 12 is provided between the upper platform 1802 and the thickness measuring device base 8, and the buffer assembly 12 includes:

[0064] Buffer springs 11 evenly distributed at the four corners of the upper platform 1802;

[0065] The cylinder body of the cylinder 10 is fixed to the lower surface of the top platform 1803, and the cylinder rod of the cylinder 10 is connected to the upper platform 1802 to drive the upper platform 1802 to move in the vertical direction.

[0066] The present embodiment further defines in detail the composition of the lithium battery thickness measuring platform, which is provided with a top platform 1803, an upper platform 1802 and a lower lithium battery thickness measuring platform 1801 in order from top to bottom; wherein, the lower lithium battery thickness measuring platform 1801 is used to carry the battery cell to be measured, and the upper platform 1802 can move in the vertical direction under the drive of the cylinder 10. In order to absorb and store energy, thereby reducing or alleviating the impact or vibration force on the system, a buffer component 12 is provided between the upper platform 1802 and the thickness measuring device base 8 of the present embodiment, that is, between the upper platform 1802 and the lower lithium battery thickness measuring platform 1801. The buffer component 12 mainly comprises four buffer springs 11 arranged at the four corners of the lower surface of the upper platform 1802.

[0067] Preferably, the thickness testing assembly of this embodiment includes:

[0068] A thickness test probe 13 installed on the lower surface of the upper platform 1802; and

[0069] A probe base 14 mounted on the thickness measuring device base 8 and matching the position of the corresponding thickness test probe 13;

[0070] When the upper platform 1802 moves downward in the vertical direction, the thickness test probe 13 contacts the probe base 14 and measures the thickness of the battery cell;

[0071] Two sets of thickness testing components are symmetrically arranged on any two sides of the upper platform 1802 .

[0072] This embodiment further defines the composition of the thickness test assembly, which includes a thickness test probe 13 and a probe base 14; the thickness test probe 13 and the probe base 14 are matched in position, so that when the upper platform 1802 moves downward, the thickness test probe 13 can contact a corresponding probe base 14, and when contacted, the upper platform 1802 continues to move downward, and the travel distance can measure the displacement distance in real time and display the value, and the thickness of the battery cell is measured. The cylinder 10 pushes the upper platform 1802 to move upward and retract, preparing for the next round of testing.

[0073] In order to avoid damage to the battery cell due to excessive movement, an anti-collision cylinder 15 is provided on the base 8 of the thickness measuring device of this embodiment, and an infrared probe 16 is provided on the base 8 of the thickness measuring device near the anti-collision cylinder 15; the anti-collision cylinder 15 is electrically connected to the infrared probe 16, and the infrared probe 16 is connected to the device alarm system; when the upper platform 1802 moves downward in a transitional manner, the upper platform 1802 contacts the anti-collision cylinder 15 and triggers the infrared probe 16 to sense and trigger the alarm system.

[0074] When the downward displacement distance exceeds the thickness range of the battery cell, the upper platform 1802 will contact the anti-collision cylinder 15 and trigger the infrared probe 16 to sense, at which time an alarm is triggered and the equipment stops working immediately.

[0075] In order to prevent operators from operating incorrectly or foreign objects from entering the device during operation, a safety grating 17 is provided on one side of the outer frame 1 close to the thickness measuring operating table 4 in this embodiment.

[0076] In the above technical solution, the utility model provides a cell thickness testing device for square shell lithium-ion batteries, which has the following beneficial effects:

[0077] When the testing device of the utility model is used, when the battery cell after being put into the shell is transferred to the thickness measuring station through the tray, the thickness measuring device can measure the thickness of the battery cell in real time, with high precision and high efficiency, thus solving the problems of low measurement precision, low efficiency and inability to detect in real time existing in the traditional battery thickness measurement, and reducing the manpower and detection costs, ensuring that the size of the battery meets the specifications, and solving many problems of the traditional manual testing of the enterprise.

[0078] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cell thickness testing device for a square-shell lithium-ion battery, characterized in that: The battery cell thickness testing device comprises: Equipment support base (2); A support platform (7) supported on the upper end of the equipment support base (2), wherein the support platform (7) has a thickness measuring equipment base (8); and A lithium battery thickness measuring platform integrated in the thickness measuring device base (8), the lithium battery thickness measuring platform being divided into a lower lithium battery thickness measuring platform (1801) connected to the thickness measuring device base (8) and an upper platform (1802) located directly above the lower lithium battery thickness measuring platform (1801), the lithium battery being placed on the lower lithium battery thickness measuring platform (1801); The battery cell thickness testing device also includes: A cylinder (10) for driving the upper platform (1802) to move in a vertical direction; and A thickness testing component integrated between the upper platform (1802) and the lower lithium battery thickness measuring platform (1801); When the cylinder (10) drives the upper platform (1802) to move downward, the thickness testing assembly can measure the thickness of the lithium battery cell located on the lower lithium battery thickness measuring platform (1801).

2. The cell thickness testing device for a square-shell lithium-ion battery according to claim 1, characterized in that: An outer frame (1) is arranged outside the battery cell thickness testing device, and the material of the outer frame (1) is acrylic material; One side of the battery cell thickness testing device is provided with a thickness measuring operating table (4), and the thickness measuring operating table (4) is provided with a two-handed operating button (5); The thickness measuring operating table (4) is provided with a keyboard placement position (3); The battery cell thickness testing device has a display screen and a switch button (6) on the outside.

3. The cell thickness testing device for a square-shell lithium-ion battery according to claim 1, characterized in that: The lithium battery thickness measurement platform also includes: Top platform (1803); The lower lithium battery thickness measuring platform (1801), the upper platform (1802) and the top platform (1803) are all marble platforms; A support rod (9) is provided between the top platform (1803) and the thickness measuring device base (8); A buffer component (12) is provided between the upper platform (1802) and the thickness measuring device base (8), and the buffer component (12) comprises: Buffer springs (11) evenly distributed at the four corners of the upper platform (1802); The cylinder body of the cylinder (10) is fixed to the lower surface of the top platform (1803), and the cylinder rod of the cylinder (10) is connected to the upper platform (1802) to drive the upper platform (1802) to move in the vertical direction.

4. The cell thickness testing device for a square-shell lithium-ion battery according to claim 3, characterized in that: The thickness testing assembly comprises: A thickness testing probe (13) installed on the lower surface of the upper platform (1802); and A probe base (14) mounted on the thickness measuring device base (8) and matched with the position of the corresponding thickness testing probe (13); When the upper platform (1802) moves downward in the vertical direction, the thickness test probe (13) contacts the probe base (14) and measures the thickness of the battery cell; Two groups of thickness testing components are symmetrically arranged on any two sides of the upper platform (1802).

5. A cell thickness testing device for a square-shell lithium-ion battery according to claim 3 or 4, characterized in that: An anti-collision cylinder (15) is arranged on the thickness measuring device base (8), and an infrared probe (16) is arranged at a position of the thickness measuring device base (8) close to the anti-collision cylinder (15); The anti-collision cylinder (15) is electrically connected to the infrared probe (16), and the infrared probe (16) is connected to the device alarm system; When the upper platform (1802) transitions downward, the upper platform (1802) contacts the anti-collision cylinder (15) and triggers the infrared probe (16) to sense and trigger the alarm system.

6. The cell thickness testing device for a square-shell lithium-ion battery according to claim 2, characterized in that: A safety grating (17) is provided on one side of the outer frame (1) close to the thickness measuring operating table (4).

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