Pull-down structure suitable for battery cover plate anti-explosion piece breath test

Abstract

The utility model relates to the technical field of battery detection equipment discloses the pull -down structure suitable for battery cover plate explosion -proof piece breath test, including base plate, be equipped with lower seat body on the base plate, the upper side of lower seat body is equipped with upper seat body, and the test interval of battery cover plate has between upper seat body and lower seat body, upper seat body and lower seat body respectively have the air -inlet of inflation or air -exhaust, when battery cover plate is fixed in the test interval by upper seat body and lower seat body clamping, and the air -inlet is arranged in alignment to the explosion -proof piece of battery cover plate, lower seat body fixed arrangement, upper seat body is connected on the pull -down board, and the both sides of pull -down board are connected with drive structure respectively, and drive structure drives pull -down board longitudinal movement, so that upper seat body faces or deviates from lower seat body longitudinal movement, so that the operation of battery cover plate's chucking and releasing is more smooth, rapid, not only has optimized the operation process, but also has strengthened the adaptability and flexibility of test equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of battery testing equipment, and more specifically, to a pull-down structure suitable for the breathing test of the explosion-proof sheet of a battery cover. Background Technology

[0002] The function of the battery cover explosion-proof plate is to rupture and release pressure in time when the internal pressure of the battery rises abnormally to a certain level, thus preventing dangerous situations from occurring. The breathing test of the explosion-proof plate is to ensure that it can open normally within the specified pressure range, thereby ensuring the safety and reliability of the battery in actual use.

[0003] In existing technologies, the clamping and fixing process of battery cover plates is relatively cumbersome and relies heavily on manual operation. For example, using bolts or clamps for fixing is not only time-consuming and susceptible to human error, but the repeated disassembly and assembly operations further slow down the testing progress. At the same time, manual adjustment makes it difficult to ensure that the air vents and explosion-proof sheets are aligned, resulting in uneven airflow distribution during testing and affecting the reliability of the data.

[0004] In addition, the relatively cumbersome operation and the threaded adjustment or manual lifting structure make it inconvenient to move the upper and lower seats, hindering quick clamping and release, and making it difficult to meet the production industry's requirements for fast and efficient testing equipment. Utility Model Content

[0005] The purpose of this invention is to provide a pull-down structure suitable for the breathing test of the explosion-proof sheet of a battery cover, aiming to solve the problem of inconvenient operation of the breathing test of the explosion-proof sheet of a battery cover in the prior art.

[0006] This utility model is implemented as follows: a pull-down structure suitable for the breathing test of the explosion-proof sheet of a battery cover includes a base plate, a lower seat body is provided on the base plate, an upper seat body is provided above the lower seat body, and a test interval for the battery cover is provided between the upper seat body and the lower seat body; the upper seat body and the lower seat body respectively have air ports for inflation or deflation, and when the battery cover is clamped and fixed in the test interval by the upper seat body and the lower seat body, the air ports are aligned with the explosion-proof sheet of the battery cover. The lower seat is fixedly arranged, the upper seat is connected to the pull-down plate, and a driving structure is connected to both sides of the pull-down plate. The driving structure drives the pull-down plate to move longitudinally, so that the upper seat moves longitudinally toward or away from the lower seat.

[0007] Furthermore, the lower seat is fixed on the base plate, and the driving structure includes a longitudinally moving driving shaft that moves through the base plate and is connected to the pull-down plate. The longitudinal movement of the driving shaft causes the pull-down plate to move longitudinally.

[0008] Furthermore, the upper seat is connected to the middle of the pull-down plate, and the two ends of the pull-down plate are respectively connected to the drive shaft.

[0009] Furthermore, the substrate is provided with a longitudinally penetrating through hole, through which the drive shaft moves.

[0010] Furthermore, the bottom of the substrate is provided with a lower guide cylinder, which is aligned with the through hole, and the drive shaft moves through the lower guide cylinder.

[0011] Furthermore, the top of the substrate is provided with an upper guide ring, which is aligned with the through hole, and the drive shaft passes through the upper guide ring.

[0012] Furthermore, a lower plate is provided below the base plate and is movably arranged and moves longitudinally synchronously with the pull-down plate. The bottom of the drive shaft is connected to the lower plate, and the top of the drive shaft is connected to the pull-down plate. A power element for driving the lower plate to move longitudinally is provided on the lower plate.

[0013] Furthermore, the power element includes a cylinder with a longitudinally extending piston shaft; the cylinder is fixed on the lower plate, and the piston shaft is fixedly connected to the base plate; during the longitudinal extension and retraction of the piston shaft, the cylinder moves longitudinally synchronously to drive the lower plate to move longitudinally synchronously.

[0014] Furthermore, the cylinder includes a cylinder body, the cylinder body has a cylinder cavity inside, the lower end of the piston shaft has a piston head, the piston head is movably placed in the cylinder cavity, and the upper end of the piston shaft is fixedly connected to the base plate. The cylinder is fixedly connected to the lower plate, and the cylinder can be moved longitudinally relative to the piston shaft by filling or deflating the cylinder chamber.

[0015] Furthermore, the top of the piston shaft abuts against the bottom of the base plate, and a connector is connected to the top of the base plate. The connector passes through the base plate and is threadedly connected to the top of the piston shaft so that the piston shaft is fixedly connected to the base plate. The bottom of the upper body is provided with an upwardly recessed groove, and the connector is placed in the recessed groove.

[0016] Compared with the prior art, the pull-down structure for the breathability test of the explosion-proof sheet of the battery cover provided by this utility model, through the lower seat set on the base plate, forms a test interval with the upper seat above, providing a stable and accurate positioning space for the clamping of the battery cover, reducing the steps of manual adjustment, and simplifying the clamping operation process.

[0017] By utilizing the air vents located on the upper and lower bodies respectively, the explosion-proof sheet can be accurately aligned after the battery cover is clamped and fixed, making the inflation or deflation process smooth and uniform, effectively improving the accuracy and reliability of test data, and reducing test errors and repetitive operations caused by poor air vent alignment.

[0018] In addition, the fixed arrangement of the lower seat body is connected to the upper seat body on the pull-down plate. Together with the drive structure on both sides, it realizes the rapid longitudinal movement of the upper seat body, making the operation of clamping and releasing the battery cover smoother and faster. This not only optimizes the operation process, but also enhances the adaptability and flexibility of the test equipment, enabling it to better meet the testing needs of battery covers of different sizes and types. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the pull-down structure for the breathability test of the explosion-proof sheet of the battery cover provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of the substrate provided by this utility model; Figure 3 This is a schematic diagram of the internal structure of the cylinder provided by this utility model; In the figure: substrate 100, lower seat 101, upper seat 102, test interval 103, drive shaft 104, pull-down plate 105, lower guide cylinder 106, upper guide ring 107, air port 108. Lower plate 200, cylinder 201, piston shaft 202, piston head 203, connector 204, recessed groove 205; Explosion-proof sheet 300. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] Reference Figure 1-3 The image shown is a preferred embodiment of the present invention.

[0024] A pull-down structure for testing the breathability of a battery cover explosion-proof sheet includes a base plate 100, a lower seat 101 on the base plate 100, an upper seat 102 above the lower seat 101, and a test interval 103 for the battery cover between the upper seat 102 and the lower seat 101. The upper seat 102 and the lower seat 101 each have an air inlet 108 for inflation or deflation. When the battery cover is clamped and fixed in the test interval 103 by the upper seat 102 and the lower seat 101, the air inlet 108 is aligned with the explosion-proof sheet 300 of the battery cover. The lower seat 101 is fixedly arranged, and the upper seat 102 is connected to the pull-down plate 105. The two sides of the pull-down plate 105 are respectively connected to the drive structure, which drives the pull-down plate 105 to move longitudinally, so that the upper seat 102 moves longitudinally toward or away from the lower seat 101.

[0025] The pull-down structure provided above for the breathability test of the explosion-proof sheet of the battery cover, through the lower seat 101 set on the base plate 100, forms a test interval 103 with the upper seat 102 above, providing a stable and accurate positioning space for the clamping of the battery cover, reducing the steps of manual adjustment and simplifying the clamping operation process.

[0026] By utilizing the air vents 108 respectively located on the upper body 102 and the lower body 101, the explosion-proof sheet 300 can be accurately aligned after the battery cover is clamped and fixed, making the inflation or deflation process smooth and uniform, effectively improving the accuracy and reliability of test data, and reducing test errors and repetitive operations caused by poor alignment of the air vents 108.

[0027] In addition, the fixed arrangement of the lower seat 101 and the upper seat 102 are connected to the pull-down plate 105. With the help of the drive structure on both sides, the upper seat 102 can move quickly longitudinally, making the operation of clamping and releasing the battery cover smoother and faster. This not only optimizes the operation process, but also enhances the adaptability and flexibility of the test equipment, enabling it to better meet the testing needs of battery covers of different sizes and types.

[0028] In this embodiment, the lower seat 101 is fixed on the substrate 100, and the driving structure includes a longitudinally moving driving shaft 104. The driving shaft 104 moves through the substrate 100 and is connected to the pull-down plate 105. The longitudinal movement of the driving shaft 104 drives the pull-down plate 105 to move longitudinally.

[0029] This allows the pull-down plate 105 to move longitudinally stably and accurately, providing a reliable foundation for the clamping and testing of the battery cover. In actual production lines, this longitudinal drive method can shorten the time interval between clamping and testing of the battery cover, while avoiding testing errors caused by frequent manual operations, effectively improving testing efficiency and accuracy.

[0030] In this embodiment, the upper seat 102 is connected to the middle of the pull-down plate 105, and the two ends of the pull-down plate 105 are respectively connected to the drive shaft 104.

[0031] This allows the upper body 102 to maintain balance and stability during movement, avoiding tilting or shifting, thus ensuring that the battery cover is subjected to uniform force during clamping. Especially in the mass testing of battery covers, the symmetrical drive shafts 104 at both ends can adapt to diverse battery cover types and can quickly complete clamping and release operations, improving the flexibility and adaptability of testing.

[0032] In this embodiment, the substrate 100 is provided with a longitudinally penetrating through hole, through which the drive shaft 104 moves.

[0033] The through-hole configuration provides a clear movement trajectory for the drive shaft 104, preventing it from deviating and ensuring the stability of the drive shaft 104 during longitudinal movement. This reduces test errors caused by vibration or offset, significantly improving the accuracy and reliability of the entire breathing test.

[0034] In this embodiment, a lower guide cylinder 106 is provided at the bottom of the substrate 100. The lower guide cylinder 106 is arranged aligned with the through hole, and the drive shaft 104 moves through the lower guide cylinder 106.

[0035] The introduction of the lower guide cylinder 106 further enhances the stability of the drive shaft 104, reduces the sway amplitude, and improves the operating accuracy of the device. In actual battery cover testing, such guidance can avoid clamping failure or testing errors caused by the offset of the drive shaft 104, ensuring that each clamping is accurate and reducing the need for repetitive operations.

[0036] In this embodiment, an upper guide ring 107 is provided on the top of the substrate 100. The upper guide ring 107 is arranged aligned with the through hole, and the drive shaft 104 passes through the upper guide ring 107.

[0037] In this way, with the coordinated action of the upper guide ring 107 and the lower guide cylinder 106, the movement trajectory of the drive shaft 104 is protected from both the top and bottom directions, thereby enhancing the stability of the drive shaft 104. Moreover, it can meet the testing requirements of the battery cover at different positions, ensuring that each clamping is accurate, reducing the need for repetitive operations, and improving the flexibility and adaptability of testing.

[0038] In this embodiment, a lower plate 200 is provided below the substrate 100 and moves longitudinally synchronously with the pull-down plate 105. The bottom of the drive shaft 104 is connected to the lower plate 200, and the top of the drive shaft 104 is connected to the pull-down plate 105. A power element for driving the lower plate 200 to move longitudinally is provided on the lower plate 200.

[0039] By indirectly driving the pull-down plate 105 through the lower plate 200, the force is transmitted and amplified, reducing force loss and making the movement of the drive shaft 104 smoother. Moreover, the setting of the lower plate 200 also increases the flexibility of the device, enabling it to adapt to clamping requirements of different heights. In tests that require frequent changes in the type of battery cover, the position can be quickly adjusted, shortening the clamping and debugging time.

[0040] In this embodiment, the power element includes a cylinder 201, which has a longitudinally telescopic piston shaft 202. The cylinder 201 is fixed on the lower plate 200, and the piston shaft 202 is fixedly connected to the base plate 100. During the longitudinal telescopic process of the piston shaft 202, the cylinder 201 moves longitudinally synchronously to drive the lower plate 200 to move longitudinally synchronously.

[0041] The cylinder 201 provides strong power support, enabling clamping operations to be completed in a short time, reducing manual intervention, and is especially suitable for the rapid testing needs in automated production lines. The fixed connection between the piston shaft 202 and the base plate 100 makes the force transmission more direct, while the synchronous movement of the cylinder 201 ensures the longitudinal movement accuracy of the lower plate 200, improving testing efficiency and reliability.

[0042] In this embodiment, the cylinder 201 includes a cylinder body, the inside of which has a cylinder cavity, the lower end of the piston shaft 202 has a piston head 203, the piston head 203 is movably placed in the cylinder cavity, and the upper end of the piston shaft 202 is fixedly connected to the base plate 100. The cylinder body is fixedly connected to the lower plate 200. By filling or depressing the cylinder chamber with air, the cylinder body can move longitudinally relative to the piston shaft 202.

[0043] By filling or evacuating the cylinder with air, the pneumatic drive method offers advantages such as fast response and low cost. At the same time, it avoids the complex wiring associated with motor drives. In test processes with frequent clamping, pneumatic drive can quickly respond to clamping requirements, improve overall test efficiency, and reduce the risk of test interruptions due to power component failures.

[0044] In this embodiment, the top of the piston shaft 202 abuts against the bottom of the substrate 100. The top of the substrate 100 is connected to a connector 204. The connector 204 passes through the substrate 100 and is threadedly connected to the top of the piston shaft 202 so that the piston shaft 202 is fixedly connected to the substrate 100. The bottom of the upper seat 102 is provided with an upwardly recessed groove 205, and the connector 204 is placed in the recessed groove 205.

[0045] By fixing the connector 204 with threads, the substrate 100 can withstand greater force without loosening; and the presence of the recessed groove 205 prevents the upper body 102 from shifting due to shaking during clamping. In this way, the clamping accuracy of the battery cover can be guaranteed, and the test error caused by unstable connection can be reduced. It has advantages, especially in high-frequency clamping tests, and improves the accuracy and reliability of the test.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pull-down structure suitable for the breathing test of the explosion-proof sheet of a battery cover, characterized in that, The device includes a substrate, on which a lower seat is provided, and above the lower seat is an upper seat. A test interval for a battery cover is provided between the upper seat and the lower seat. The upper seat and the lower seat are respectively provided with air ports for inflation or deflation. When the battery cover is clamped and fixed in the test interval by the upper seat and the lower seat, the air ports are aligned with the explosion-proof sheet of the battery cover. The lower seat is fixedly arranged, the upper seat is connected to the pull-down plate, and a driving structure is connected to both sides of the pull-down plate. The driving structure drives the pull-down plate to move longitudinally, so that the upper seat moves longitudinally toward or away from the lower seat.

2. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 1, characterized in that, The lower seat is fixed on the base plate, and the driving structure includes a longitudinally moving drive shaft that moves through the base plate and is connected to the pull-down plate. The longitudinal movement of the drive shaft drives the pull-down plate to move longitudinally.

3. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 2, characterized in that, The upper seat is connected to the middle of the pull-down plate, and the two ends of the pull-down plate are respectively connected to the drive shaft.

4. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 2, characterized in that, The substrate has a longitudinally penetrating through hole, through which the drive shaft moves.

5. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 2, characterized in that, The bottom of the substrate is provided with a lower guide cylinder, which is aligned with the through hole, and the drive shaft moves through the lower guide cylinder.

6. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 2, characterized in that, The top of the substrate is provided with an upper guide ring, which is aligned with the through hole, and the drive shaft passes through the upper guide ring.

7. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 2, characterized in that, The base plate has a lower plate that is movably arranged and moves longitudinally in sync with the pull-down plate. The bottom of the drive shaft is connected to the lower plate, and the top of the drive shaft is connected to the pull-down plate. The lower plate has a power element that drives the lower plate to move longitudinally.

8. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 7, characterized in that, The power element includes a cylinder with a longitudinally extending piston shaft; the cylinder is fixed on the lower plate, and the piston shaft is fixedly connected to the base plate; during the longitudinal extension and retraction of the piston shaft, the cylinder moves longitudinally synchronously to drive the lower plate to move longitudinally synchronously.

9. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 8, characterized in that, The cylinder includes a cylinder body, the inside of which has a cylinder cavity, the lower end of the piston shaft has a piston head, the piston head is movably placed in the cylinder cavity, and the upper end of the piston shaft is fixedly connected to the base plate. The cylinder is fixedly connected to the lower plate, and the cylinder can be moved longitudinally relative to the piston shaft by filling or deflating the cylinder chamber.

10. The pull-down structure for the breathability test of the explosion-proof sheet of a battery cover as described in claim 8, characterized in that, The top of the piston shaft abuts against the bottom of the base plate, and a connector is connected to the top of the base plate. The connector passes through the base plate and is threadedly connected to the top of the piston shaft so that the piston shaft is fixedly connected to the base plate. The bottom of the upper body is provided with an upwardly recessed groove, and the connector is placed in the recessed groove.

Images