Battery case air tightness detection equipment convenient to position

Abstract

The utility model relates to the technical field of battery case processing, in particular to a battery case air tightness detection device convenient to position, which comprises an air tightness detection device and a detection jig arranged in the air tightness detection device. The detection jig further comprises a positioning assembly arranged in the detection jig, and the positioning assembly is used for fixing the battery shell. And a connecting assembly is arranged between the airtightness detection equipment and the detection jig and is used for limiting the detection jig. According to the battery shell air tightness detection equipment convenient to position, two groups of fixing pieces can be driven to move oppositely by rotating an elliptical piece on the positioning assembly, at the moment, the fixing pieces can position and fix a battery shell, and the stability of the battery shell during detection is improved; and meanwhile, the detection jig can be disassembled and assembled by moving the limiting piece on the contraction connecting assembly, so that the detection jig can be conveniently and quickly overhauled, and the convenience and the disassembly and assembly efficiency of the detection jig are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery casing processing technology, specifically to a battery casing airtightness testing device that is easy to position. Background Technology

[0002] Battery casing airtightness testing equipment is a professional device used to test the sealing performance of battery casings. It is mainly used to ensure that no gas leakage occurs during the manufacturing and use of battery casings, thereby ensuring the safety and stability of batteries.

[0003] The airtightness testing process mainly involves placing the battery casing on the testing equipment fixture table, filling the battery casing with gas at a certain pressure, and then using a high-precision sensor to monitor the changes in gas pressure to determine whether there is a leak in the battery casing.

[0004] However, in practical applications, since the battery casing needs to be placed directly on the fixture during the testing process, and the size of the groove on the fixture is usually uniform, while the size of battery casings for different purposes varies, when some smaller battery casings are placed in the groove for testing, the battery casing will be subjected to the high-pressure gas that rushes in instantly, causing the battery casing to shift in position, thus affecting the accuracy of the test results. Utility Model Content

[0005] The purpose of this invention is to provide a battery casing airtightness testing device that is easy to position, in order to solve the problem mentioned in the background art that when some smaller battery casings are placed in the groove for testing, the battery casings will be subjected to high-pressure gas that rushes in instantly, causing positional displacement and affecting the accuracy of the test results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a battery casing airtightness testing device that is easy to position, comprising an airtightness testing device and a testing fixture disposed inside the airtightness testing device; and further comprising;

[0007] A positioning component is disposed inside a testing fixture and is used to fix the battery casing. The positioning component includes a fixing member that is slidably connected to the inner wall of the testing fixture. An elliptical member is disposed inside the testing fixture and is rotatably connected to the fixing member.

[0008] A connecting assembly is disposed between an airtightness testing device and a testing fixture. The connecting assembly is used to limit the testing fixture. The connecting assembly includes a connecting rod, which is fixedly connected to the bottom of the testing fixture. A limiting member extends through the side wall of the connecting rod and is movably inserted into the interior of the airtightness testing device.

[0009] Preferably, the positioning component further includes a concave plate, which is fixedly connected to the bottom of the fixing member, and the inner wall of the airtightness testing device is provided with a sliding groove, in which the concave plate is slidably connected.

[0010] Preferably, the inside of the chute is rotatably connected to a shaft, the elliptical piece is fixedly connected to the outer wall of the shaft, the side wall of the concave plate is fixedly connected to a hinge, and a movable rod is rotatably connected between the hinge and the elliptical piece.

[0011] Preferably, the inner wall of the airtightness testing device is provided with a stabilizing groove, and stabilizing components are fixedly connected to both sides of the fixing component, with the stabilizing components slidably connected inside the stabilizing groove.

[0012] Preferably, rubber pads are fixedly connected to the corresponding sides of both sets of fixing members.

[0013] Preferably, the airtightness testing device has a connecting hole at its inner top, the connecting rod is inserted into the connecting hole, the connecting hole has a limiting hole inside, and the limiting member is inserted into the limiting hole.

[0014] Preferably, the connecting assembly further includes a connecting plate, which is fixedly connected to the end of the limiting member, and is slidably connected inside the connecting rod and the detection fixture. A return spring is fixedly connected between the interior of the connecting plate and the connecting rod.

[0015] Preferably, a pressing member is fixedly connected to the end of the connecting plate, and the pressing member penetrates the outer wall of the testing fixture.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by setting a positioning component inside the testing fixture, the elliptical part on the positioning component can drive the two sets of fixing parts to move towards each other. At this time, the fixing parts will position and fix the battery case, which improves the stability of the battery case during testing.

[0017] Meanwhile, by setting a connecting component between the airtightness testing equipment and the testing fixture, the testing fixture can be disassembled and assembled by moving and retracting the limiting part on the connecting component, which facilitates quick maintenance and improves its convenience and disassembly efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the airtightness testing equipment of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the testing fixture of this utility model;

[0020] Figure 3 This is a schematic diagram of the unfolded structure of the positioning component of this utility model;

[0021] Figure 4 This is a three-dimensional structural schematic diagram of the cross-section of the airtightness testing equipment of this utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the testing fixture of this utility model;

[0023] Figure 6 This is a cross-sectional structural diagram of the connecting component of this utility model.

[0024] In the diagram: 1. Air tightness testing equipment; 2. Testing fixture; 3. Positioning assembly; 301. Fixing component; 3011. Rubber pad; 302. Concave plate; 3021. Slide groove; 303. Hinge component; 304. Elliptical component; 3041. Shaft; 305. Movable rod; 306. Stabilizing component; 3061. Stabilizing groove; 4. Connecting assembly; 401. Connecting rod; 4011. Connecting hole; 402. Limiting component; 4021. Limiting hole; 403. Connecting plate; 404. Pressing component; 405. Return spring. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figure 1 - Figure 6 As shown, this application provides a battery casing airtightness testing device that is easy to position, including an airtightness testing device 1 and a testing fixture 2 disposed inside the airtightness testing device 1; and also includes;

[0028] Specifically, such as Figure 2As shown, the testing fixture 2 is equipped with a positioning component 3 inside. The positioning component 3 is used to fix the battery case. The positioning component 3 includes a fixing member 301, which is slidably connected to the inner wall of the testing fixture 2. The testing fixture 2 is equipped with an elliptical member 304 inside, which is rotatably connected to the fixing member 301. By setting the positioning component 3 inside the testing fixture 2, the elliptical member 304 on the positioning component 3 can be rotated to drive the two sets of fixing members 301 to move towards each other. At this time, the fixing member 301 will position and fix the battery case, which improves the stability of the battery case during testing.

[0029] The bottom of the fastener 301 is fixedly connected to a concave plate 302, and the inner wall of the airtightness testing device 1 is provided with a sliding groove 3021, in which the concave plate 302 is slidably connected.

[0030] Specifically, such as Figure 3 As shown, a shaft 3041 is rotatably connected inside the slide groove 3021. An elliptical piece 304 is fixedly connected to the outer wall of the shaft 3041. A hinge 303 is fixedly connected to the side wall of the concave plate 302. A movable rod 305 is rotatably connected between the hinge 303 and the elliptical piece 304. A motor or other driving component can be installed inside the slide groove 3021, and the output shaft of the motor is fixedly connected to the shaft 3041. The motor can drive the shaft 3041 and the elliptical piece 304 to rotate. At the same time, the elliptical piece 304 can drive the two sets of movable rods 305 to rotate. At this time, the movable rods 305 can drive the two sets of fixed parts 301 to move towards each other.

[0031] The inner wall of the airtightness testing device 1 is provided with a stabilizing groove 3061. Stabilizing components 306 are fixedly connected to both sides of the fixing component 301. The stabilizing component 306 is slidably connected inside the stabilizing groove 3061, which improves the stability of the fixing component 301 when it slides.

[0032] Rubber pads 3011 are fixedly connected to one side of each of the two sets of fasteners 301. The rubber pads 3011 can protect the battery case and avoid direct clamping and contact with the battery case, which could easily cause damage to the battery case.

[0033] Specifically, such as Figure 4 As shown, a connecting component 4 is provided between the airtightness testing device 1 and the testing fixture 2. The connecting component 4 is used to limit the testing fixture 2. The connecting component 4 includes a connecting rod 401, which is fixedly connected to the bottom of the testing fixture 2. A limiting member 402 passes through the side wall of the connecting rod 401. The limiting member 402 is movably inserted into the interior of the airtightness testing device 1. By providing the connecting component 4 between the airtightness testing device 1 and the testing fixture 2, the testing fixture 2 can be disassembled and assembled by moving and retracting the limiting member 402 on the connecting component 4, which facilitates quick maintenance and improves its convenience and disassembly efficiency.

[0034] Specifically, such as Figure 5 As shown, the airtightness testing device 1 has a connection hole 4011 on its inner top. The connecting rod 401 is inserted into the connection hole 4011. The connection hole 4011 has a limiting hole 4021 inside. The limiting member 402 is inserted into the limiting hole 4021. By inserting the connecting rod 401 into the connection hole 4011 and releasing the pressing member 404, the limiting member 402 can be reset outward by the elastic force of the return spring 405. At this time, it will be inserted into the limiting hole 4021 for fixation.

[0035] Specifically, such as Figure 6 As shown, a connecting plate 403 is fixedly connected to the end of the limiting member 402. The connecting plate 403 is slidably connected inside the connecting rod 401 and the detection fixture 2. A return spring 405 is fixedly connected between the connecting plate 403 and the inside of the connecting rod 401. A pressing member 404 is fixedly connected to the end of the connecting plate 403. The pressing member 404 penetrates the outer wall of the detection fixture 2. By pressing the pressing member 404 inward, the connecting plate 403 and the limiting member 402 can be retracted inside the connecting rod 401. At this time, the detection fixture 2 can be removed upward.

[0036] The specific steps of this solution are as follows: First, by pressing the pressing part 404, the connecting rod 401 is inserted into the connecting hole 4011. After releasing the pressing part 404, the elastic force of the return spring 405 can reset the limiting part 402 outward. At this time, it will be inserted into the limiting hole 4021 for fixation. Next, the battery case is placed inside the testing fixture 2, and the motor drives the shaft 3041 and the elliptical part 304 to rotate. At the same time, the elliptical part 304 can drive the two sets of movable rods 305 to rotate. At this time, the movable rods 305 can drive the two sets of fixed parts 301 to move towards each other until the fixed parts 301 clamp and fix the battery case. Finally, the air tightness testing device 1 is driven to perform air tightness testing on the battery case.

[0037] The specific functions and operation of the air tightness testing equipment 1 can be referenced from the air tightness testing fixture with model number JC-LM5008.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery casing airtightness testing device for easy positioning, comprising an airtightness testing device (1) and a testing fixture (2) disposed inside the airtightness testing device (1); characterized in that, Also includes; A positioning component (3) is disposed inside the testing fixture (2). The positioning component (3) is used to fix the battery casing. The positioning component (3) includes a fixing member (301). The fixing member (301) is slidably connected to the inner wall of the testing fixture (2). An elliptical member (304) is disposed inside the testing fixture (2). The elliptical member (304) is rotatably connected to the fixing member (301). A connecting component (4) is disposed between the airtightness testing device (1) and the testing fixture (2). The connecting component (4) is used to limit the testing fixture (2). The connecting component (4) includes a connecting rod (401), which is fixedly connected to the bottom of the testing fixture (2). A limiting member (402) passes through the side wall of the connecting rod (401), and the limiting member (402) is movably inserted into the interior of the airtightness testing device (1).

2. The battery casing airtightness testing device for easy positioning according to claim 1, characterized in that, The positioning component (3) further includes a concave plate (302), which is fixedly connected to the bottom of the fixing member (301). The inner wall of the airtightness testing device (1) is provided with a sliding groove (3021), and the concave plate (302) is slidably connected inside the sliding groove (3021).

3. The battery casing airtightness testing device for easy positioning according to claim 2, characterized in that, The slide groove (3021) is rotatably connected to a shaft (3041), the elliptical part (304) is fixedly connected to the outer wall of the shaft (3041), the side wall of the concave plate (302) is fixedly connected to a hinge (303), and a movable rod (305) is rotatably connected between the hinge (303) and the elliptical part (304).

4. The battery casing airtightness testing device for easy positioning according to claim 3, characterized in that, The inner wall of the airtightness testing device (1) is provided with a stabilizing groove (3061), and the two sides of the fixing member (301) are fixedly connected with stabilizing members (306), and the stabilizing members (306) are slidably connected inside the stabilizing groove (3061).

5. The battery casing airtightness testing device for easy positioning according to claim 4, characterized in that, Rubber pads (3011) are fixedly connected to one side of each of the two sets of fasteners (301).

6. The battery casing airtightness testing device for easy positioning according to claim 1, characterized in that, The airtightness testing device (1) has a connection hole (4011) on its inner top. The connecting rod (401) is inserted into the inside of the connection hole (4011). The connection hole (4011) has a limiting hole (4021) inside it. The limiting member (402) is inserted into the inside of the limiting hole (4021).

7. The battery casing airtightness testing device for easy positioning according to claim 6, characterized in that, The connecting assembly (4) further includes a connecting plate (403), which is fixedly connected to the end of the limiting member (402). The connecting plate (403) is slidably connected inside the connecting rod (401) and the detection fixture (2). A return spring (405) is fixedly connected between the interior of the connecting plate (403) and the connecting rod (401).

8. The battery casing airtightness testing device for easy positioning according to claim 7, characterized in that, The end of the connecting plate (403) is fixedly connected to a pressing member (404), which penetrates the outer wall of the testing fixture (2).

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