Special detection equipment for upper shell

Abstract

The utility model relates to the technical field of battery detection, and discloses a special detection device for an upper shell, which comprises an air tightness detection pool, and a height adjusting mechanism and a battery positioning mechanism are arranged in the air tightness detection pool. A lithium battery is placed above the mounting plates, connecting columns are mounted on the surface of the rear mounting plate, connecting sleeves are mounted at the top ends of the connecting columns, a connecting rod is connected between the two connecting sleeves, the surface of a rod body of the connecting rod is sleeved with a sliding sleeve, the outer side of the sliding sleeve is connected with one end of a movable rod, and the other end of the movable rod is connected with a telescopic rod. The length of the telescopic rod is adjusted by controlling the telescopic rod to move on the inner side of the movable rod, so that the positioning rod is inserted into the positioning groove in the surface of the supporting plate, and accurate positioning of the lithium battery is completed. A plurality of groups of positioning grooves are formed, and the positioning rods are controlled to be inserted into different positioning grooves by adjusting the length of the telescopic rods, so that the positioning rods can position lithium batteries with different sizes, and the adaptability is higher.

Description

Technical Field

[0001] This utility model relates to the field of battery testing, and in particular to a special testing device for the upper casing. Background Technology

[0002] With the widespread application of lithium batteries in electric vehicles, energy storage systems, and consumer electronics, their safety has become an increasingly important concern. Among these concerns, the airtightness of the battery casing is a key factor affecting battery safety. Poor airtightness of the battery casing can lead to serious consequences such as electrolyte leakage, internal short circuits, and even explosions.

[0003] Currently, commonly used airtightness testing methods in the market mainly include pressure testing, vacuum testing, and bubble testing. However, existing technologies have the following drawbacks:

[0004] Complex operation: Existing equipment usually requires complex operating procedures and has low detection efficiency.

[0005] Poor adaptability: Existing equipment has difficulty adapting to battery casings of different sizes and shapes, resulting in poor versatility.

[0006] Based on this, we propose a dedicated testing device for the upper shell. Utility Model Content

[0007] To address the technical problems of complex operation and poor adaptability, this utility model provides a special testing device for upper shells.

[0008] This utility model is achieved by the following technical solution: a special testing device for upper shell, including an airtightness testing pool, and a height adjustment mechanism and a battery positioning mechanism are installed inside the airtightness testing pool;

[0009] The height adjustment mechanism includes a fixed plate, which is fixedly connected to the inner wall of the airtightness testing tank. A drive motor is connected to the fixed plate, and a rotating screw is connected to the bottom end of the drive motor. A receiving seat is connected to the bottom end of the rotating screw, and the receiving seat is connected to the battery positioning mechanism.

[0010] The drive motor is started, which drives the rotating screw to rotate. The rotation of the screw is synchronized with the receiving seat, controlling the height adjustment of the receiving seat. The receiving seat then drives the battery positioning mechanism to move synchronously, thereby adjusting the height of the battery positioning mechanism. Through the precise control of the height adjustment mechanism, the upper casing of the lithium battery is completely immersed in the water of the airtightness testing tank.

[0011] The drive motor is a reversible motor, and its model number is MCDC3006S.

[0012] The battery positioning mechanism includes a mounting plate, a support plate is fixedly connected to the bottom of the mounting plate, and a positioning groove is provided on the surface of the support plate.

[0013] A lithium battery is placed on top of the mounting plate. A connecting post is installed on the surface of the mounting plate at the rear. A connecting sleeve is installed on the top of the connecting post. A connecting rod is connected between the two sets of connecting sleeves. A sliding sleeve is fitted onto the surface of the connecting rod. One end of a movable rod is connected to the outside of the sliding sleeve. The other end of the movable rod is connected to a telescopic rod.

[0014] The telescopic rod is inserted into the inside of the movable rod.

[0015] The top of the telescopic rod is connected to a rotating shaft block, and a positioning rod is hinged to the outside of the rotating shaft block. A locking buckle passes through the movable rod to fix the telescopic rod. The telescopic rod and the positioning rod are hinged together by the rotating shaft block, and the positioning rod deflects around the rotating shaft block.

[0016] The lithium battery to be tested is placed on the support plate. By cooperating with the sliding sleeve and the movable rod, the angle of the movable rod can be adjusted, the telescopic rod can be pulled, and the telescopic rod can be controlled to move inside the movable rod. Adjusting the length of the telescopic rod allows the positioning rod to be inserted into the positioning groove on the surface of the support plate, thus completing the precise positioning of the lithium battery.

[0017] As a further optimization of this utility model, multiple sets of positioning slots are provided, and positioning rods are inserted into the positioning slots. The positioning slots are evenly distributed on the surface of the support plate. Furthermore, by adjusting the length of the telescopic rod to control the insertion of the positioning rod into different positioning slots, the positioning rod can be positioned for lithium batteries of different sizes, thus enhancing adaptability.

[0018] As a further optimization of this utility model, the positioning rod is a flexible rubber rod. Because the positioning rod is made of flexible rubber, it avoids damage to the battery casing and facilitates insertion of the positioning rod into the positioning groove.

[0019] As a further optimization of this utility model, it should be noted that water is placed inside the airtightness testing pool, and the height adjustment mechanism and the battery positioning mechanism are placed inside the airtightness testing pool.

[0020] As a further optimization of this invention, gas at a certain pressure is injected into the upper casing of the lithium battery. The presence of air bubbles is then observed in the airtightness test chamber. The presence of air bubbles indicates a leak in the battery casing; the absence of air bubbles indicates good airtightness of the battery casing.

[0021] As a further optimization of this utility model, a fixed locking buckle passes through the movable rod and fixes the telescopic rod to ensure that the positioning rod remains stable during the testing process.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. This utility model controls the movement of a telescopic rod inside a movable rod, adjusting the length of the telescopic rod to allow the positioning rod to insert into a positioning groove on the surface of the support plate, thus achieving precise positioning of the lithium battery. Multiple positioning grooves are provided; by adjusting the length of the telescopic rod to control the positioning rod to insert into different positioning grooves, the positioning rod can position lithium batteries of different sizes, making it more adaptable.

[0024] 2. This invention involves filling the upper casing of a lithium battery with gas at a certain pressure. The airtightness test cell is then observed for the presence of air bubbles. The presence of air bubbles indicates a leak in the battery casing; the absence of air bubbles indicates good airtightness of the battery casing. This method provides a simpler and more convenient way to test the airtightness of the battery. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Internal structure diagram;

[0027] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of region A in the middle.

[0028] Explanation of key symbols:

[0029] 1. Airtightness testing tank; 2. Height adjustment mechanism; 21. Fixing plate; 22. Drive motor; 23. Rotating screw; 24. Support seat; 3. Battery positioning mechanism; 31. Mounting plate; 32. Support plate; 33. Positioning groove; 34. Lithium battery; 35. Connecting column; 36. Connecting sleeve; 37. Connecting rod; 38. Sliding sleeve; 39. Movable rod; 310. Telescopic rod; 311. Rotating shaft block; 312. Positioning rod. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example 1: Please refer to Figures 1-3 This embodiment proposes a special testing device for the upper shell, including an airtightness testing pool 1, and a height adjustment mechanism 2 and a battery positioning mechanism 3 are installed inside the airtightness testing pool 1.

[0032] The height adjustment mechanism 2 includes a fixed plate 21, which is fixedly connected to the inner wall of the airtightness testing pool 1. A drive motor 22 is connected to the fixed plate 21. A rotating screw 23 is connected to the bottom end of the drive motor 22. A receiving seat 24 is connected to the bottom end of the rotating screw 23. The receiving seat 24 is connected to the battery positioning mechanism 3.

[0033] Specifically, the drive motor 22 is started, which drives the rotating screw 23 to rotate. The rotation of the rotating screw 23 is synchronized with the receiving seat 24, which is controlled to adjust its height. The receiving seat 24 drives the battery positioning mechanism 3 to move synchronously, thereby adjusting the height of the battery positioning mechanism 3. Through the precise control of the height adjustment mechanism 2, the upper casing of the lithium battery 34 is completely immersed in the water of the airtightness testing pool 1.

[0034] Gas at a certain pressure is injected into the upper casing of lithium battery 34. Observe whether bubbles are generated in the airtightness test cell 1. If bubbles are present, it indicates that there is a leak in the battery casing; if no bubbles are present, it indicates that the battery casing is airtight.

[0035] It should be noted that the drive motor 22 is a forward and reverse rotating motor, and the model of the drive motor 22 is MCDC3006S.

[0036] It should be noted that water is placed inside the airtightness testing pool 1, and the height adjustment mechanism 2 and the battery positioning mechanism 3 are placed inside the airtightness testing pool 1.

[0037] The battery positioning mechanism 3 includes a mounting plate 31, a support plate 32 is fixedly connected to the bottom of the mounting plate 31, and a positioning groove 33 is provided on the surface of the support plate 32.

[0038] A lithium battery 34 is placed on top of the mounting plate 31. A connecting post 35 is installed on the surface of the mounting plate 31 at the rear. A connecting sleeve 36 is installed on the top of the connecting post 35. A connecting rod 37 is connected between the two sets of connecting sleeves 36. A sliding sleeve 38 is sleeved on the surface of the connecting rod 37. One end of a movable rod 39 is connected to the outside of the sliding sleeve 38. The other end of the movable rod 39 is connected to a telescopic rod 310.

[0039] The telescopic rod 310 is inserted into the inside of the movable rod 39.

[0040] The top of the telescopic rod 310 is connected to a rotating shaft block 311, and a positioning rod 312 is hinged to the outside of the rotating shaft block 311. A fixing buckle 313 passes through the movable rod 39 to fix the telescopic rod 310.

[0041] Specifically, the lithium battery 34 to be tested is placed on the support plate 32. Through the cooperation of the sliding sleeve 38 and the movable rod 39, the angle of the movable rod 39 can be adjusted, pulling the telescopic rod 310 and controlling its movement inside the movable rod 39. Adjusting the length of the telescopic rod 310 allows the positioning rod 312 to insert into the positioning groove 33 on the surface of the support plate 32, thus completing the precise positioning of the lithium battery 34. A fixing buckle 313 passes through the movable rod 39 and secures the telescopic rod 310, ensuring the positioning rod 312 remains stable during the testing process.

[0042] Furthermore, the positioning rod 312 is made of flexible rubber. Because the positioning rod 312 is made of flexible rubber, it avoids damage to the battery casing and facilitates insertion of the positioning rod 312 into the positioning groove 33.

[0043] It should be noted that multiple sets of positioning slots 33 are provided, and positioning rods 312 are inserted into the positioning slots 33. The positioning slots 33 are evenly distributed on the surface of the support plate 32. Furthermore, by adjusting the length of the telescopic rod 310, the positioning rods 312 can be inserted into different positioning slots 33, allowing the positioning rods 312 to position lithium batteries 34 of different sizes, thus enhancing adaptability.

[0044] It should be noted that the telescopic rod 310 and the positioning rod 312 are hinged together by a rotating shaft block 311, and the positioning rod 312 deflects around the rotating shaft block 311.

[0045] Specific implementation steps of this utility model:

[0046] Battery positioning:

[0047] The lithium battery 34 to be tested is placed on the support plate 32. By cooperating with the sliding sleeve 38 and the movable rod 39, the angle of the movable rod 39 can be adjusted, pulling the telescopic rod 310 and controlling its movement inside the movable rod 39. Adjusting the length of the telescopic rod 310 allows the positioning rod 312 to insert into the positioning groove 33 on the surface of the support plate 32, thus achieving precise positioning of the lithium battery 34. A fixing buckle 313 passes through the movable rod 39 and secures the telescopic rod 310, ensuring the positioning rod 312 remains stable during testing. Simultaneously, multiple sets of positioning grooves 33 are provided; by adjusting the length of the telescopic rod 310, the positioning rod 312 can be inserted into different positioning grooves 33, allowing the positioning rod 312 to position lithium batteries 34 of different sizes, thus enhancing adaptability.

[0048] Since the positioning rod 312 is made of flexible rubber, it can avoid damage to the battery casing and facilitate the insertion of the positioning rod 312 into the positioning groove 33.

[0049] Height adjustment:

[0050] The drive motor 22 is started, which drives the rotating screw 23 to rotate. The rotation of the screw 23 is synchronized with the support seat 24, which adjusts the height of the support seat 24. The support seat 24 then drives the battery positioning mechanism 3 to move synchronously, thereby adjusting the height of the battery positioning mechanism 3. Through the precise control of the height adjustment mechanism 2, the upper casing of the lithium battery 34 is completely immersed in the water of the airtightness testing pool 1.

[0051] Air tightness test:

[0052] Gas at a certain pressure is injected into the upper casing of lithium battery 34. Observe whether bubbles are generated in the airtightness test cell 1. If bubbles are present, it indicates that there is a leak in the battery casing; if no bubbles are present, it indicates that the battery casing is airtight.

[0053] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A special testing device for upper shells, characterized in that, It includes an airtightness testing tank (1), and the airtightness testing tank (1) is equipped with a height adjustment mechanism (2) and a battery positioning mechanism (3). The battery positioning mechanism (3) includes a mounting plate (31), a support plate (32) is fixedly connected to the bottom of the mounting plate (31), and a positioning groove (33) is provided on the surface of the support plate (32). A lithium battery (34) is placed on top of the mounting plate (31). A connecting post (35) is installed on the surface of the mounting plate (31) at the rear. A connecting sleeve (36) is installed at the top of the connecting post (35). A connecting rod (37) is connected between the two sets of connecting sleeves (36). A sliding sleeve (38) is sleeved on the surface of the connecting rod (37). One end of a movable rod (39) is connected to the outside of the sliding sleeve (38). The other end of the movable rod (39) is connected to a telescopic rod (310). A rotating shaft block (311) is connected to the top of the telescopic rod (310). A positioning rod (312) is hinged to the outside of the rotating shaft block (311). A fixing buckle (313) passes through the movable rod (39) to fix the telescopic rod (310).

2. The special testing equipment for upper shells as described in claim 1, characterized in that, The telescopic rod (310) is inserted into the interior of the movable rod (39).

3. The special testing equipment for upper shells as described in claim 1, characterized in that, The telescopic rod (310) and the positioning rod (312) are hinged together by the rotating shaft block (311), and the positioning rod (312) deflects around the rotating shaft block (311).

4. The special testing equipment for upper shells as described in claim 1, characterized in that, The positioning rod (312) is a flexible rubber rod.

5. The special testing equipment for upper shells as described in claim 1, characterized in that, The positioning groove (33) is provided in multiple sets, and the positioning rod (312) is inserted into the positioning groove (33). The positioning groove (33) is evenly opened on the surface of the support plate (32).

6. The special testing equipment for upper shells as described in claim 1, characterized in that, Water is placed inside the airtightness testing pool (1), and the height adjustment mechanism (2) and the battery positioning mechanism (3) are placed inside the airtightness testing pool (1).

7. The special testing equipment for upper shells as described in claim 1, characterized in that, The height adjustment mechanism (2) includes a fixing plate (21), which is fixedly connected to the inner wall of the airtightness testing pool (1). A drive motor (22) is connected to the fixing plate (21), and a rotating screw (23) is connected to the bottom end of the drive motor (22). A receiving seat (24) is connected to the bottom end of the rotating screw (23), and the receiving seat (24) is connected to the battery positioning mechanism (3).

8. The special testing equipment for upper shells as described in claim 7, characterized in that, The drive motor (22) is a forward and reverse reversible motor, and the model of the drive motor (22) is MCDC3006S.

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