A standard leak hole mechanism for testing electrolyte leakage

Abstract

The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to the technical field of battery leakage detection. The application discloses a test electrolyte leakage standard leakage hole mechanism and relates to

Description

Technical Field

[0001] This application relates to the field of battery leakage detection technology, and in particular to a standard leakage hole mechanism for testing electrolyte leakage. Background Technology

[0002] A battery is a device that converts chemical energy into electrical energy. It contains an electrolyte solution and metal electrodes to generate an electric current. During battery production, electrolyte leakage needs to be detected. To calibrate the leakage rate of defective batteries, production lines often artificially create leaks in good batteries to simulate the leakage rates of different defective products. This is used to verify the stability and accuracy of the testing system. A vacuum method is often employed, utilizing the characteristic of leaking batteries to create a pressure difference between the inside and outside of the leaking battery. The electrolyte is forced out of the battery along with the gas generated inside. A visual inspection is then performed to remove any non-conforming batteries.

[0003] The existing technology still has the following problems:

[0004] 1. However, the method of detecting leaks by machining holes in good batteries cannot be repeatedly used to produce a consistent leakage effect. This leads to product waste, and the effect of machining leaks in batteries varies from one to another, causing inaccurate calibration and inspection processes for the testing system. Consequently, it affects the detection of defective products.

[0005] 2. During the evacuation process, the standard leakage component is prone to rolling or shaking due to changes in air pressure, causing the electrolyte to flow directly out of the standard leakage component, which affects the test results.

[0006] 3. It is difficult to control the amount of air extracted during the extraction process, resulting in unstable and unclear air pressure inside the test box. This makes it difficult to detect electrolyte leakage under various pressure conditions, thus affecting test efficiency. Summary of the Invention

[0007] This application provides a standard leakage hole mechanism for testing electrolyte leakage, which solves the problems of existing technologies that use leak holes processed on good batteries for testing, which cannot be reused multiple times, the standard leakage component is prone to rolling or shaking under changes in air pressure, and the difficulty in controlling the amount of air extracted during evacuation. The standard leakage component can simulate the battery puncture test for battery leakage, the clamping component can clamp and fix the standard leakage component, and the pressure control component can uniformly extract air from the test box, so that the pressure of the test box changes evenly.

[0008] This application provides a standard leakage test mechanism for electrolyte leakage, including a test box. A top cover is snapped into the inner cavity of the test box. A clamping assembly is fixedly installed in the inner cavity of the test box. A standard leakage component is placed inside the test box. A support frame is fixedly installed on the outer surface of the test box. A pressure control assembly is provided on the outer surface of the support frame. The pressure control assembly communicates with the interior of the test box. The standard leakage component includes a standard leakage bottom mold mechanism. A standard leakage interlayer mechanism is sleeved on the upper end of the standard leakage bottom mold mechanism. A standard leakage end cap mechanism is sleeved on the upper end of the standard leakage interlayer mechanism. A collection box is sleeved on the outer surface of the standard leakage end cap mechanism. A slot is formed in the inner cavity of the collection box.

[0009] Furthermore, the clamping assembly includes a clamping frame, a threaded rod sleeved in the inner cavity of the clamping frame, limit rods provided on both sides of the threaded rod, the clamping frame and the limit rods sleeved together, a first sliding groove formed on the outer surface of the clamping frame, a limit strip fixedly installed on the lower surface of the clamping frame, a movable frame slidably connected below the limit strip, a first slider fixedly installed on the upper surface of the movable frame, a clamping block fixedly installed at the end of the movable frame away from the first slider, a connecting rod sleeved in the inner cavity of the movable frame, a first spring sleeved on the outer surface of the connecting rod, a connecting ring provided on the lower surface of the clamping frame, a rotating block rotatably connected to the outer surface of the connecting ring, second sliding grooves formed at both ends of the rotating block, and a first sliding rod slidably connected to the inner cavity of the second sliding groove.

[0010] Furthermore, the inner cavity of the first slide groove is slidably connected to a first slider, there are two movable frames, and the rotating block is located between the two movable frames. The movable frame and the first slide rod are fixedly sleeved, the first slide rod and the clamping frame are slidably connected, the clamping frame and the threaded rod are connected by threads, the clamping frame and the limiting rod are slidably connected, the first spring is located between the two movable frames, the connecting rod and the movable frame are slidably connected, and the clamping block and the slot are engaged.

[0011] Furthermore, the bottom mold mechanism includes a base, the upper end of which is provided with a first external thread, the upper surface of which is provided with a receiving cavity, and the top of which is provided with a first sealing ring.

[0012] Furthermore, the leakage interlayer mechanism includes an interlayer seat, the bottom inner cavity of which is provided with a first internal thread, a connecting hole with a diameter of mm is provided in the middle part of the interlayer seat, a first diffusion hole is provided in the middle part of the interlayer seat and is located directly above the connecting hole, a second sealing ring is placed in the upper inner cavity of the interlayer seat, a second spring is provided between the second sealing ring and the interlayer seat, a perforated sheet is placed in the upper inner cavity of the interlayer seat, a locking block is slidably connected to both ends of the perforated sheet, a third spring is provided between the locking block and the perforated sheet, a second slide rod is fixedly installed in the inner cavity of the interlayer seat, a moving block is slidably connected to the outer surface of the second slide rod, the bottom sides of the locking block and the moving block are both curved surfaces and the adjacent ends are narrower, the locking block engages with the inner cavity of the interlayer seat, and the upper end of the interlayer seat is provided with a second external thread.

[0013] Furthermore, the end cap mechanism includes an end cap seat, the bottom cavity of which is provided with a second internal thread, and a second diffusion hole is provided in the middle part of the end cap seat. The second internal thread and the second external thread fix the end cap mechanism and the end cap mechanism by rotation. The first internal thread and the first external thread fix the bottom mold mechanism and the interlayer mechanism by rotation. The upper surface of the end cap seat is curved and is higher in the middle.

[0014] Furthermore, the pressure control component includes a fixed rod, which is fixedly installed on the outer surface of the support frame. A connecting frame is fixedly installed at the end of the fixed rod away from the support frame. A drive mechanism is rotatably connected to the middle part of the connecting frame. An adjustment mechanism is slidably connected above the drive mechanism. A movable sleeve is fitted onto the outer surface of the adjustment mechanism. Third slide rods are fixedly installed on both sides of the movable sleeve. A connecting strip is fixedly installed on the upper surface of one of the third slide rods. An air extraction mechanism is fitted onto the top of the connecting strip. The air extraction mechanism is fitted onto the test box. A stepper motor is provided at the bottom of the connecting frame, and the output end of the stepper motor is fitted onto the drive mechanism.

[0015] Furthermore, the driving mechanism includes a driving disk, a third sliding groove is provided in the middle part of the driving disk, and insertion holes are provided on both sides of the third sliding groove.

[0016] Furthermore, the adjustment mechanism includes a second slider, with insert rods on both sides of the second slider, an adjustment groove on the outer surface of the second slider, a pressure plate slidably connected to the inner cavity of the adjustment groove, two pressure plates, and a fourth spring between the two pressure plates, an adjustment rod fixedly installed on the upper surface of the second slider, the adjustment rod slidably connected to the movable sleeve, the side of the pressure plate away from the fourth spring being fixedly connected to the insert rod, the second slider being slidably connected to the third slide groove, and the insert rod being inserted into the insertion hole.

[0017] Furthermore, the suction mechanism includes a suction cylinder, which is fixedly sleeved with the test box. A first vent ring is fixedly installed in the inner cavity of the suction cylinder, and a first vent cap is movably connected to the outer surface of the first vent ring. The first vent ring is located inside the test box. A second vent ring is slidably connected to the inner wall of the suction cylinder, and a second vent cap is movably connected to the outer surface of the second vent ring. A connecting block is fixedly installed on the outer surface of the second vent ring. A suction rod is fixedly installed on the side of the connecting block away from the second vent ring. An air outlet is provided at the end of the suction cylinder away from the first vent ring, and a screw cap is provided in the inner cavity of the air outlet. The suction rod and the connecting strip are fixedly connected. Ventilation holes are opened in the middle of the first and second vent rings, and the diameter of the ventilation holes is smaller than the diameter of the first and second vent caps.

[0018] The technical solution provided in this application has at least the following technical effects or advantages:

[0019] 1. By employing a standard leakage component, this invention effectively solves the problem of inconsistent leakage results from processing leaks into good batteries. This method, which involves machining leaks into good batteries, cannot be reused multiple times. Such practices lead to product waste and individual variations in leak hole processing, resulting in inaccurate calibration and inspection of the testing system. Consequently, it affects the detection of defective products. This invention uses a standard leakage component to simulate electrolyte leakage from the battery surface during puncture testing. This facilitates the replacement of the test membrane, prevents puncture hole blockage, improves reusability, and allows for refilling of electrolyte after use. Fixed hole positions prevent excessive leakage, contamination of the mold cavity, and damage to the instrument. The puncture sheet facilitates testing of puncture hole diameter specifications and is low-cost, eliminating the need for destructive testing of the battery.

[0020] 2. Due to the use of clamping components, the problem of the standard leakage component easily rolling or shaking under changes in air pressure during the evacuation process is effectively solved, causing the electrolyte to flow directly out of the standard leakage component and affecting the test results. The present invention can clamp and fix the standard leakage component through clamping components, ensuring that the standard leakage component remains relatively stable under changes in air pressure in the test box, preventing the standard leakage component from tipping over and improving test accuracy.

[0021] 3. Due to the use of pressure control components, the problem of difficulty in controlling the amount of air extracted during evacuation is effectively solved, which leads to unstable and unclear air pressure inside the test box, making it difficult to detect electrolyte leakage under various pressure conditions and affecting test efficiency. This invention can uniformly extract air from the test box through pressure control components, so that the pressure of the test box changes evenly, and the amount of change can be adjusted each time, which is convenient for pressure gradient testing according to requirements. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0023] Figure 2 This is a schematic diagram of the internal structure of the test box in Embodiment 1 of this application;

[0024] Figure 3 This is a schematic diagram of the clamping component structure in Embodiment 1 of this application;

[0025] Figure 4 This is a schematic diagram of the first spring structure in Embodiment 1 of this application;

[0026] Figure 5 This is a schematic diagram of the rotating block structure in Embodiment 1 of this application;

[0027] Figure 6 This is a schematic diagram of the standard leakage component structure in Embodiment 1 of this application;

[0028] Figure 7 This is a partial exploded view of the standard leakage component in Embodiment 1 of this application;

[0029] Figure 8 This is a schematic diagram of the bottom mold mechanism in Embodiment 1 of this application;

[0030] Figure 9 This is a schematic diagram of the leak-proof interlayer mechanism in Embodiment 1 of this application;

[0031] Figure 10 This is a schematic cross-sectional view of the sandwich panel structure in Embodiment 1 of this application;

[0032] Figure 11 This is Example 1 of the present application. Figure 10 Enlarged structural diagram at point A;

[0033] Figure 12 This is a schematic diagram of the perforated sheet structure in Embodiment 1 of this application;

[0034] Figure 13 This is a schematic diagram of the leak-proof end cap mechanism in Embodiment 1 of this application;

[0035] Figure 14 This is a schematic diagram of the pressure control component structure in Embodiment 2 of this application;

[0036] Figure 15 This is a schematic diagram of the fixing rod structure in Embodiment 2 of this application;

[0037] Figure 16 This is a schematic diagram of the drive mechanism structure in Embodiment 2 of this application;

[0038] Figure 17 This is a schematic diagram of the adjustment mechanism structure in Embodiment 2 of this application;

[0039] Figure 18 This is a cross-sectional schematic diagram of the air extraction mechanism in Embodiment 2 of this application.

[0040] In the diagram: 1. Test box; 2. Top cover; 3. Clamping assembly; 31. Clamping frame; 32. Threaded rod; 33. Limiting rod; 34. First slide groove; 35. Limiting strip; 36. Moving frame; 37. First slider; 38. Clamping block; 39. Connecting rod; 310. First spring; 311. Connecting ring; 312. Rotating block; 313. Second slide groove; 314. First slide rod; 4. Standard leakage assembly; 41. Standard Bottom mold mechanism; 411, base; 412, first external thread; 413, receiving cavity; 414, first sealing ring; 42, mark-and-squeeze interlayer mechanism; 421, interlayer seat; 422, first internal thread; 423, connecting hole; 424, first diffusion hole; 425, second sealing ring; 426, second spring; 427, perforated sheet; 428, locking block; 429, second slide rod; 4210, moving block; 42 11. Second external thread; 43. Marker end cap mechanism; 431. End cap seat; 432. Second internal thread; 433. Second diffuser hole; 44. Collection box; 45. Slot; 5. Support frame; 6. Pressure control assembly; 61. Fixing rod; 62. Connecting frame; 63. Drive mechanism; 631. Drive disk; 632. Third slide groove; 633. Insertion hole; 64. Adjustment mechanism; 641. Second slider; 642. Insertion rod 643. Adjustment groove; 644. Pressure plate; 645. Adjustment rod; 65. Moving sleeve; 66. Third slide rod; 67. Connecting bar; 68. Air extraction mechanism; 681. Air extraction cylinder; 682. First vent ring; 683. First vent cover; 684. Second vent ring; 685. Second vent cover; 686. Connecting block; 687. Air extraction rod; 688. Air outlet; 689. Screw cap; 69. Stepper motor. Detailed Implementation

[0041] Since the method of detecting leaks by machining holes in good batteries cannot be reused multiple times, this invention simulates battery puncture tests using a standard leakage component. Since the standard leakage component is prone to rolling or shaking under changes in air pressure, this invention can clamp and fix the standard leakage component using a clamping component. To make it difficult to detect electrolyte leakage under various pressure conditions, this invention can uniformly evacuate the test box using a pressure control component, so that the pressure of the test box changes uniformly.

[0042] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0043] Example 1

[0044] Please see Figure 1 and Figure 2 As shown, a standard leakage hole mechanism for testing electrolyte leakage includes a test box 1, a top cover 2 that is snapped into the inner cavity of the test box 1, a clamping assembly 3 that is fixedly installed in the inner cavity of the test box 1, a standard leakage assembly 4 placed inside the test box 1, a support frame 5 that is fixedly installed on the outer surface of the test box 1, and a pressure control assembly 6 that is provided on the outer surface of the support frame 5. The pressure control assembly 6 is connected to the inside of the test box 1. Electrolyte is placed in the standard leakage assembly 4, and the standard leakage assembly 4 is fixed inside the test box 1 by the clamping assembly 3. The top cover 2 is placed on the upper surface of the test box 1, and the pressure control assembly 6 is used to evacuate the inside of the test box 1, causing a change in the pressure inside the test box 1, causing the electrolyte in the standard leakage assembly 4 to flow out, replacing the battery body puncture test.

[0045] Please see Figure 3 , Figure 4 and Figure 5As shown, the clamping assembly 3 includes a clamping frame 31. A threaded rod 32 is sleeved in the inner cavity of the clamping frame 31. Limiting rods 33 are provided on both sides of the threaded rod 32. The clamping frame 31 and the limiting rods 33 are sleeved together. A first sliding groove 34 is formed on the outer surface of the clamping frame 31. A limiting strip 35 is fixedly installed on the lower surface of the clamping frame 31. A movable frame 36 is slidably connected below the limiting strip 35. A first slider 37 is fixedly installed on the upper surface of the movable frame 36. A clamping block 38 is fixedly installed at the end of the movable frame 36 away from the first slider 37. A connecting rod 39 is sleeved in the inner cavity of the movable frame 36. A first spring 310 is sleeved on the outer surface of the connecting rod 39. Spring 310 is used to compress the movable frame 36. A connecting ring 311 is provided on the lower surface of the clamping frame 31. A rotating block 312 is rotatably connected to the outer surface of the connecting ring 311. Second sliding grooves 313 are provided at both ends of the rotating block 312. A first sliding rod 314 is slidably connected to the inner cavity of the second sliding groove 313. A first sliding block 37 is slidably connected to the inner cavity of the first sliding groove 313. There are two movable frames 36, and the rotating block 312 is located between the two movable frames 36. The movable frame 36 and the first sliding rod 314 are fixedly sleeved. The first sliding rod 314 and the clamping frame 31 are slidably connected. The clamping frame 31 and the threaded rod 32 are connected by threads. The first spring 310 is located between the two movable frames 36 and the limiting rod 33. The connecting rod 39 is slidably connected to the movable frame 36. The clamping block 38 engages with the slot 45. The collection box 44 is fixed by the engagement of the clamping block 38 and the slot 45, thereby fixing the standard leak end cap mechanism 43. This ensures that the standard leak assembly 4 remains relatively stable during the overall testing, preventing tipping due to pressure changes. By sliding the first slider 37 in the inner cavity of the first slide groove 34, the sliding of the first slider 37 drives the movable frame 36 to move on the limiting bar 35. The movement of the movable frame 36 drives the first slide rod 314 to move. The movement of rod 314 causes rotating block 312 to rotate on connecting ring 311. At the same time, first sliding rod 314 slides in the inner cavity of second sliding groove 313, so that clamping block 38 is located between slots 45. When the first slider 37 is released, the elastic force of first spring 310 causes two moving frames 36 to move in opposite directions. At this time, clamping block 38 is tightly engaged with slot 45, thereby maintaining the overall stability of standard leakage assembly 4. By rotating threaded rod 32, clamping frame 31 slides on limiting rod 33, thereby changing the overall height, which makes it easy to adjust the height of clamping block 38 when clamping slot 45, and facilitates quick removal of standard leakage assembly 4 after clamping.

[0046] Please see Figure 6As shown, the standard leakage assembly 4 includes a standard leakage bottom mold mechanism 41, a standard leakage interlayer mechanism 42 sleeved on the upper end of the standard leakage bottom mold mechanism 41, a standard leakage end cap mechanism 43 sleeved on the upper end of the standard leakage interlayer mechanism 42, a collection box 44 sleeved on the outer surface of the standard leakage end cap mechanism 43, and a slot 45 opened in the inner cavity of the collection box 44. The internal space of the standard leakage bottom mold mechanism 41 is hollowed out to store the electrolyte of the substance to be tested, which can be repeatedly added and replaced. The standard leakage interlayer mechanism 42 is used to connect the standard leakage bottom mold mechanism 41 and can prevent electrolyte splashing. The standard leakage end cap mechanism 43 is used to connect the standard leakage interlayer mechanism 42. The collection box 44 is used to collect the electrolyte discharged from the top of the standard leakage end cap mechanism 43 to prevent the electrolyte from contaminating the inner cavity of the test box 1. The slot 45 is used to engage with the clamping block 38 so that the entire standard leakage assembly 4 remains in a relatively fixed state during testing.

[0047] Please see Figure 7 and Figure 8As shown, the base mold mechanism 41 includes a base 411, with a first external thread 412 at the upper end of the base 411, a receiving cavity 413 on the upper surface of the base 411, and a first sealing ring 414 at the top of the base 411. The interlayer mechanism 42 includes an interlayer seat 421, with a first internal thread 422 in the inner cavity at the bottom end of the interlayer seat 421, a connecting hole 423 with a diameter of 0.3 mm in the middle of the interlayer seat 421, and a first diffusion hole 424 located in the middle of the interlayer seat 421. Directly above 423, a second sealing ring 425 is placed in the upper inner cavity of the interlayer seat 421. A second spring 426 is arranged between the second sealing ring 425 and the interlayer seat 421. A perforated sheet 427 is placed in the upper inner cavity of the interlayer seat 421. A locking block 428 is slidably connected to both ends of the perforated sheet 427. A third spring is arranged between the locking block 428 and the perforated sheet 427. A second sliding rod 429 is fixedly installed in the inner cavity of the interlayer seat 421. A moving block 4210 is slidably connected to the outer surface of the second sliding rod 429. The bottom sides of both the locking block 428 and the moving block 4210 are curved surfaces. The end closest to each other is narrower, and the inner cavity of the locking block 428 and the interlayer seat 421 engages. The upper end of the interlayer seat 421 is provided with a second external thread 4211. The end cap mechanism 43 includes an end cap seat 431. The inner cavity of the bottom end of the end cap seat 431 is provided with a second internal thread 432. A second diffusion hole 433 is opened in the middle part of the end cap seat 431. The second internal thread 432 and the second external thread 4211 fix the end cap mechanism 42 and the end cap mechanism 43 by rotation. The first internal thread 422 and the first external thread 412 fix the bottom mold mechanism 41 and the interlayer mechanism by rotation. 42 is fixed. The upper surface of the end cap seat 431 is curved and higher in the middle. When the electrolyte reaches the upper surface of the end cap seat 431, it will flow into the collection box 44. When performing electrolyte leakage detection, the internal space cavity 413 of the base 411 is used to store the electrolyte of the substance to be tested. It can be repeatedly added and replaced. The top of the base 411 is equipped with a first sealing ring 414 to seal with the leakage test interlayer mechanism 42. At the same time, the first external thread 412 and the first internal thread 422 are threaded together, and the second external thread 4211 and the second internal thread 432 are threaded together. The middle of the interlayer seat 421 is increased by 0.A 3mm diameter connecting hole 423 prevents electrolyte splashing and contamination of the mold cavity. The diameter of the first diffusion hole 424 on the sandwich base 421 can be customized according to requirements. The perforated sheet 427 is easy to replace. When replacing the perforated sheet 427, pressing the perforated sheet 427 causes the locking block 428 and the moving block 4210 to contact. At this time, the third spring between the locking block 428 and the perforated sheet 427 is compressed, causing the locking block 428 to move below the moving block 4210. Moving the perforated sheet 427 then moves the locking block 428, which in turn moves the moving block 4210. When the moving block 4210 reaches the inner wall of the sandwich base 421, the locking block 428 retracts and disengages again under external force. When the moving block 4210 engages, the perforated sheet 427 can be removed. Simultaneously, the second sealing ring 425 ensures a tight seal between the interlayer seat 421 and the end cap seat 431. The compression of the second spring 426 ensures that the perforated sheet 427 remains within the cavity of the interlayer seat 421 during installation, positioned above the inner wall of the interlayer seat 421 and above the moving block 4210. Specifically, when the perforated sheet 427 is inserted, the first press places it above the moving block 4210 within the cavity of the interlayer seat 421. Upon removal, a second press integrates the perforated sheet 427 with the inner wall of the interlayer seat 421, facilitating easy replacement of the perforated sheet 427. The electrolyte diffuses through the second diffusion hole 433 and the first diffusion hole 424.

[0048] Example 2

[0049] Please see Figure 14 , Figure 15 and Figure 16 As shown, the pressure control assembly 6 includes a fixing rod 61, which is fixedly installed on the outer surface of the support frame 5. A connecting frame 62 is fixedly installed at the end of the fixing rod 61 away from the support frame 5. A drive mechanism 63 is rotatably connected to the middle part of the connecting frame 62. An adjustment mechanism 64 is slidably connected above the drive mechanism 63. A movable sleeve 65 is sleeved on the outer surface of the adjustment mechanism 64. Third slide rods 66 are fixedly installed on both sides of the movable sleeve 65. A connecting strip 67 is fixedly installed on the upper surface of one of the third slide rods 66. A suction mechanism 68 is sleeved on the top of the connecting strip 67. The suction mechanism 68 and the test box 1 are sleeved together. A stepper motor 69 is provided at the bottom of the connecting frame 62, and the output end of the stepper motor 69 is sleeved with the drive mechanism 63. The operation of the stepper motor 69 drives the drive mechanism 63 to rotate. The rotation of the drive mechanism 63 drives the adjustment mechanism 64 to rotate. The rotation of the adjustment mechanism 64 drives the movable sleeve 65 to move left and right in the inner cavity of the connecting frame 62. The movement of the movable sleeve 65 drives the connecting bar 67 to move. The movement of the connecting bar 67 drives the air extraction mechanism 68 to extract air from the inner cavity of the test box 1, thereby changing the pressure inside the test box 1. The change in pressure causes the electrolyte inside the standard leakage component 4 to flow out.

[0050] Please see Figure 16 and Figure 17 As shown, the drive mechanism 63 includes a drive disk 631, with a third slide groove 632 in the middle and insertion holes 633 on both sides of the third slide groove 632. The adjustment mechanism 64 includes a second slider 641, with insertion rods 642 on both sides of the second slider 641. An adjustment groove 643 is formed on the outer surface of the second slider 641, and a pressure plate 644 is slidably connected to the inner cavity of the adjustment groove 643. There are two pressure plates 644, and a fourth spring is provided between the two pressure plates 644. An adjustment rod 645 is fixedly installed on the upper surface of the second slider 641, and the adjustment rod 645 is slidably connected to the movable sleeve 65. The side of the pressure plate 644 away from the fourth spring is fixedly connected to the insertion rod 642. The second slider 641 is slidably connected to the third slide groove 632, and the insertion rod 642 and... When the socket 633 is engaged, the change in position of the adjusting mechanism 64 on the drive mechanism 63 can change the moving distance of the third slide rod 66. That is, pressing the pressure plate 644 compresses the fourth spring. At this time, the two pressure plates 644 slide in the adjusting groove 643. The movement of the pressure plate 644 causes the insert rod 642 to retract and disengage from the socket 633. By moving the second slider 641 in the third slide groove 632, the pressure plate 644 is released when it reaches the appropriate position. At this time, the insert rod 642 engages with the socket 633 again, thereby adjusting the rotation radius of the adjusting mechanism 64, that is, changing the moving distance of the third slide rod 66 each time. In this way, the same amount of air can be pumped out of the pumping mechanism 68 each time, and this amount can be changed to make comparative detection of electrolyte leakage under different pressure conditions.

[0051] Please see Figure 14 and Figure 18As shown, the suction mechanism 68 includes a suction cylinder 681, which is fixedly connected to the test box 1. A first vent ring 682 is fixedly installed inside the suction cylinder 681, and a first vent cover 683 is movably connected to the outer surface of the first vent ring 682. The first vent ring 682 is located inside the test box 1. A second vent ring 684 is slidably connected to the inner wall of the suction cylinder 681, and a second vent cover 685 is movably connected to the outer surface of the second vent ring 684. A connecting block 686 is fixedly installed on the outer surface of 684. A suction rod 687 is fixedly installed on the side of the connecting block 686 away from the second ventilation ring 684. An air outlet 688 is provided at the end of the suction cylinder 681 away from the first ventilation ring 682. A cap 689 is provided inside the air outlet 688. During suction, the cap 689 and the air outlet 688 are separated; during testing, the cap 689 is then locked into the air outlet 688. The suction rod 687 and the connecting strip 67 are fixedly connected. Vent holes are provided in the middle of the first vent ring 682 and the second vent ring 684, and the diameter of the vent holes is smaller than the diameter of the first vent cover 683 and the second vent cover 685. When the suction rod 687 is pulled outward, the first vent cover 683 and the first vent ring 682 are disengaged, and the second vent cover 685 and the second vent ring 684 are in close contact. Conversely, when the suction rod 687 moves towards the first vent ring 682, the first vent cover 683 and the first vent ring 684 are in close contact. When 682 is in close contact, the second vent cover 685 and the second vent ring 684 disengage, allowing air in the test box 1 to be drawn between the first vent ring 682 and the second vent ring 684. The air is then drawn from between the first vent ring 682 and the second vent ring 684 to between the second vent ring 684 and the suction cylinder 681 and discharged from the outlet 688. The equal distance movement of the suction rod 687 ensures that the amount of gas drawn each time is equal, making it easier to control the pressure inside the test box 1.

[0052] In summary, the electrolyte is placed in the standard leakage assembly 4, and the standard leakage assembly 4 is fixed inside the test box 1 by the clamping assembly 3. The pressure control assembly 6 evacuates the inside of the test box 1, causing a pressure change inside the test box 1, which causes the electrolyte in the standard leakage assembly 4 to flow out, replacing the battery body puncture test. The collection box 44 is fixed by the engagement of the clamping block 38 and the slot 45, thereby fixing the standard leakage end cap mechanism 43. This ensures that the standard leakage assembly 4 remains relatively stable during the test and avoids tipping over due to pressure changes. By sliding the first slider 37 in the inner cavity of the first slide groove 34, the clamping block 38 is tightly engaged with the slot 45, thereby keeping the standard leakage assembly stable. 4. Overall stability: The internal space accommodating cavity 413 of the base 411 is used to store the electrolyte of the tested substance, which can be repeatedly added and replaced. The top of the base 411 is equipped with a first sealing ring 414 to seal with the mark leakage interlayer mechanism 42. At the same time, the first external thread 412 and the first internal thread 422 are threaded together, and the second external thread 4211 and the second internal thread 432 are threaded together. A 0.3mm diameter connecting hole 423 is added in the middle of the interlayer seat 421 to prevent electrolyte splashing and contamination of the mold cavity. The diameter of the first diffusion hole 424 on the interlayer seat 421 can be customized according to requirements. At the same time, the perforated sheet 427 is easy to replace. The electrolyte diffuses through the second diffusion hole 433 and the first diffusion hole 424, and is controlled by a stepper motor 69. The operation of the pumping mechanism 68 evacuates the inner cavity of the test box 1, thereby changing the internal pressure of the test box 1. This pressure change causes the electrolyte inside the standard leakage component 4 to flow out. The change in position of the adjusting mechanism 64 on the driving mechanism 63 changes the movement distance of the third slide rod 66. That is, pressing the pressure plate 644 compresses the fourth spring. At this time, the two pressure plates 644 slide in the adjusting groove 643. The movement of the pressure plates 644 causes the insertion rod 642 to retract and disengage from the insertion hole 633. By moving the second slider 641 in the third sliding groove 632, the pressure plate 644 is released when the appropriate position is reached. At this time, the insertion rod 642 re-engages with the insertion hole 633, thereby adjusting the adjusting mechanism 644. With a rotation radius of 4, when the suction rod 687 is stretched outward, the first vent cover 683 and the first vent ring 682 disengage, while the second vent cover 685 and the second vent ring 684 are in close contact. Conversely, when the suction rod 687 moves towards the first vent ring 682, the first vent cover 683 and the first vent ring 682 are in close contact, while the second vent cover 685 and the second vent ring 684 disengage. This allows air in the test box 1 to be drawn between the first vent ring 682 and the second vent ring 684, and then drawn from between the first vent ring 682 and the second vent ring 684 to between the second vent ring 684 and the suction cylinder 681, and discharged from the outlet 688, thereby controlling the internal pressure of the test box 1.

[0053] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0054] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A standard leakage test mechanism for electrolyte leakage, comprising a test box (1), characterized in that, The top cavity of the test box (1) is fitted with a top cover (2), the inner cavity of the test box (1) is fixedly installed with a clamping component (3), the inside of the test box (1) is filled with a standard leakage component (4), the outer surface of the test box (1) is fixedly installed with a support frame (5), the outer surface of the support frame (5) is provided with a pressure control component (6), and the pressure control component (6) is connected to the inside of the test box (1). The standard leakage assembly (4) includes a standard leakage bottom mold mechanism (41), a standard leakage interlayer mechanism (42) is sleeved on the upper end of the standard leakage bottom mold mechanism (41), a standard leakage end cap mechanism (43) is sleeved on the upper end of the standard leakage interlayer mechanism (42), a collection box (44) is sleeved on the outer surface of the standard leakage end cap mechanism (43), and a slot (45) is opened in the inner cavity of the collection box (44). The bottom mold mechanism (41) includes a base (411), the upper end of the base (411) is provided with a first external thread (412), the upper surface of the base (411) is provided with a receiving cavity (413), and the top end of the base (411) is provided with a first sealing ring (414). The leak-proof interlayer mechanism (42) includes an interlayer seat (421). The bottom inner cavity of the interlayer seat (421) is provided with a first internal thread (422). A connecting hole (423) is opened in the middle of the interlayer seat (421), the diameter of which is 0.3 mm. A first diffusion hole (424) is opened in the middle of the interlayer seat (421), and the first diffusion hole (424) is located directly above the connecting hole (423). A second sealing ring (425) is placed in the upper inner cavity of the interlayer seat (421). A second spring (426) is provided between the second sealing ring (425) and the interlayer seat (421). A perforated sheet (427) is placed in the upper inner cavity of the sandwich panel (421). The two ends of the perforated sheet (427) are slidably connected to a locking block (428). A third spring is provided between the locking block (428) and the perforated sheet (427). A second slide rod (429) is fixedly installed in the inner cavity of the sandwich panel (421). A moving block (4210) is slidably connected to the outer surface of the second slide rod (429). The bottom sides of the locking block (428) and the moving block (4210) are both curved surfaces, and the end closest to each other is narrower. The locking block (428) and the inner cavity of the sandwich panel (421) are engaged. A second external thread (4211) is provided at the upper end of the sandwich panel (421).

2. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 1, characterized in that, The clamping assembly (3) includes a clamping frame (31), a threaded rod (32) is sleeved in the inner cavity of the clamping frame (31), and limit rods (33) are provided on both sides of the threaded rod (32). The clamping frame (31) and the limit rods (33) are sleeved together. A first sliding groove (34) is opened on the outer surface of the clamping frame (31). A limit strip (35) is fixedly installed on the lower surface of the clamping frame (31). A movable frame (36) is slidably connected below the limit strip (35). A first slider (37) is fixedly installed on the upper surface of the movable frame (36). A clamping block (38) is fixedly installed at one end of the movable frame (36) away from the first slider (37). A connecting rod (39) is sleeved in the inner cavity of the movable frame (36). A first spring (310) is sleeved on the outer surface of the connecting rod (39). A connecting ring (311) is provided on the lower surface of the clamping frame (31). A rotating block (312) is rotatably connected to the outer surface of the connecting ring (311). A second sliding groove (313) is provided at both ends of the rotating block (312). A first sliding rod (314) is slidably connected to the inner cavity of the second sliding groove (313).

3. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 2, characterized in that, The inner cavity of the first slide groove (34) is slidably connected to the first slider (37). There are two moving frames (36), and the rotating block (312) is located between the two moving frames (36). The moving frame (36) and the first slide rod (314) are fixedly sleeved. The first slide rod (314) and the clamping frame (31) are slidably connected. The clamping frame (31) and the threaded rod (32) are connected by threads. The clamping frame (31) and the limiting rod (33) are slidably connected. The first spring (310) is located between the two moving frames (36). The connecting rod (39) and the moving frame (36) are slidably connected. The clamping block (38) and the slot (45) are engaged.

4. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 1, characterized in that, The end cap mechanism (43) includes an end cap seat (431). The end cap seat (431) has a second internal thread (432) in its bottom cavity. The end cap seat (431) has a second diffusion hole (433) in its middle part. The second internal thread (432) and the second external thread (4211) fix the end cap mechanism (42) and the end cap mechanism (43) by rotation. The first internal thread (422) and the first external thread (412) fix the bottom mold mechanism (41) and the interlayer mechanism (42) by rotation. The upper surface of the end cap seat (431) is curved and is higher in the middle.

5. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 1, characterized in that, The pressure control component (6) includes a fixed rod (61), which is fixedly installed on the outer surface of the support frame (5). A connecting frame (62) is fixedly installed at the end of the fixed rod (61) away from the support frame (5). A drive mechanism (63) is rotatably connected to the middle part of the connecting frame (62). An adjustment mechanism (64) is slidably connected above the drive mechanism (63). A movable sleeve (65) is sleeved on the outer surface of the adjustment mechanism (64). A third slide rod (66) is fixedly installed on both sides of the movable sleeve (65). A connecting strip (67) is fixedly installed on the upper surface of one of the third slide rods (66). An air extraction mechanism (68) is sleeved on the top of the connecting strip (67). The air extraction mechanism (68) is sleeved with the test box (1). A stepper motor (69) is provided at the bottom of the connecting frame (62), and the output end of the stepper motor (69) is sleeved with the drive mechanism (63).

6. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 5, characterized in that, The drive mechanism (63) includes a drive disk (631), a third slide groove (632) is provided in the middle part of the drive disk (631), and insertion holes (633) are provided on both sides of the third slide groove (632).

7. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 6, characterized in that, The adjustment mechanism (64) includes a second slider (641), with insert rods (642) on both sides of the second slider (641). An adjustment groove (643) is provided on the outer surface of the second slider (641). A pressure plate (644) is slidably connected to the inner cavity of the adjustment groove (643). There are two pressure plates (644), and a fourth spring is provided between the two pressure plates (644). An adjustment rod (645) is fixedly installed on the upper surface of the second slider (641). The adjustment rod (645) is slidably connected to the movable sleeve (65). The side of the pressure plate (644) away from the fourth spring is fixedly connected to the insert rod (642). The second slider (641) is slidably connected to the third slide groove (632). The insert rod (642) is inserted into the insertion hole (633).

8. The standard leakage hole mechanism for testing electrolyte leakage as described in claim 7, characterized in that, The suction mechanism (68) includes a suction cylinder (681), which is fixedly sleeved with the test box (1). A first ventilation ring (682) is fixedly installed in the inner cavity of the suction cylinder (681). A first ventilation cover (683) is movably connected to the outer surface of the first ventilation ring (682). The first ventilation ring (682) is located inside the test box (1). A second ventilation ring (684) is slidably connected to the inner wall of the suction cylinder (681). A second ventilation cover (685) is movably connected to the outer surface of the second ventilation ring (684). A connecting block (686) is fixedly installed. An air extraction rod (687) is fixedly installed on the side of the connecting block (686) away from the second vent ring (684). An air outlet (688) is provided at the end of the air extraction cylinder (681) away from the first vent ring (682). A screw cap (689) is provided in the inner cavity of the air outlet (688). The air extraction rod (687) and the connecting strip (67) are fixedly connected. Ventilation holes are provided in the middle part of the first vent ring (682) and the second vent ring (684), and the diameter of the ventilation holes is smaller than the diameter of the first vent cap (683) and the second vent cap (685).

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