Helium detection equipment for battery shell

Abstract

The utility model relates to the technical field of production and manufacturing of batteries, in particular to helium detection equipment for a battery shell, which comprises a main body, a detection table is fixedly mounted on the main body, the battery shell is mounted on the detection table, a pressing block is mounted at the upper end of the battery shell for clamping, and a gas rod is fixedly mounted at the upper end of the pressing block. The helium detection equipment comprises a main body, a gas rod is installed at the output end of a cylinder, a clamping assembly is installed at the bottom end of a battery shell, and fixing boxes are fixedly installed at the two side ends of the main body. The helium detection equipment controls the gas rod through the cylinder to push a pressing block at the bottom end to press the top end of the battery shell; the motor of the clamping assembly is matched to drive the clamping blocks to clamp the two side ends of the battery shell, sealing performance detection is facilitated, gas of the battery shell is vacuumized through the vacuum pump, helium is filled through the helium tank, and whether gas leakage occurs or not is detected through a detector arranged on the helium tank to judge the sealing performance, so that the high efficiency of detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production and manufacturing, and in particular to a helium inspection device for a battery shell. Background Art

[0002] The cylindrical battery of the car usually includes a cover plate and a shell, and after the cover plate and the shell support are completed, the airtightness of the cover plate needs to be measured. Among them, the helium leak detection process is currently the main leak detection method for battery structural parts, and the helium leak detection process is used to detect whether the sealing of the corresponding cover plate structure is intact. Because helium is non-toxic to the human body and the natural environment, cannot be burned, is safe to operate, and helium will not react chemically with the object being tested. It plays an irreplaceable role in the production process of battery structural parts.

[0003] At present, the cover and shell of the battery are usually designed as separate parts, and only the cover is tested for sealing. In the existing preparation process of the battery shell, the battery shell and the cover are an integrated structure. During the helium inspection of the battery shell, the battery shell is directly inserted into the relevant equipment for helium inspection. The battery shell is not stably clamped and is prone to falling during external collisions and self-adjustment, which affects the helium inspection of the battery shell and makes it impossible to detect the sealing of the integrated battery shell. A helium inspection device for the battery shell is needed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to provide a helium inspection device for a battery housing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a helium inspection device for a battery shell, comprising a main body, a detection platform fixedly mounted on the main body, a battery shell mounted on the detection platform, a clamping block clamped on the upper end of the battery shell, the upper end of the clamping block fixedly mounted on a gas rod, the gas rod mounted on the output end of the cylinder, a clamping assembly mounted on the bottom end of the battery shell, fixed boxes fixedly mounted on both side ends of the main body, and vacuum pumps and helium cylinders are respectively mounted in the fixed boxes on both sides.

[0006] As an optimal technical solution of the utility model, a motor is installed on the clamping assembly, a bidirectional threaded rod is installed on the output end of the motor, the symmetrical ends of the bidirectional threaded rod are threadedly connected with threaded sleeves, connecting blocks are fixedly connected to the threaded sleeves on both sides, and clamping blocks are fixedly installed on the top of the connecting blocks on both sides.

[0007] As a preferred technical solution of the utility model, a sliding block is fixedly installed at the bottom end of the threaded sleeve, and a sliding groove is opened in the main body, and the sliding groove is slidably connected to the sliding block at the bottom end of the threaded sleeve.

[0008] As a preferred technical solution of the utility model, a bearing is installed between the bidirectional threaded rod and the main body and is rotatably connected to the bearing. A slot is opened on the detection platform, and the diameter of the slot is larger than the diameter of the clamping block.

[0009] As a preferred technical solution of the utility model, the two side ends of the battery housing are respectively provided with a first opening and a second opening, the first opening and the second opening are both connected with connecting pipes, and the connecting pipes on both sides are respectively connected to the vacuum pump and the helium cylinder.

[0010] As a preferred technical solution of the utility model, the cylinder is located at the bottom end of the support column, and the support column is fixedly installed on the main body.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model is a helium inspection device for battery shells. The helium inspection device provided in the device controls the gas rod through the cylinder to push the clamping block at the bottom to clamp the top of the battery shell, and cooperates with the motor of the clamping assembly to drive the clamping block to clamp the two sides of the battery shell, which is convenient for sealing detection. The gas in the battery shell is evacuated into a vacuum through a vacuum pump, and helium is filled into the battery shell through a helium cylinder. The detector on the helium cylinder detects whether there is leakage to judge the sealing, thereby improving the efficiency of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of a helium detection device for a battery housing according to an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure inside a helium inspection device for a battery housing according to an embodiment of the utility model;

[0016] Figure 3 According to the utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0017] Reference numerals:

[0018] 1. Main body; 2. Test bench; 3. Support column; 4. Cylinder; 5. Gas rod; 6. Clamping block; 7. Battery housing; 8. Fixing box; 9. Vacuum pump; 10. Helium cylinder; 11. Connecting pipe; 12. First opening; 13. Second opening; 14. Slot; 15. Bearing; 16. Motor; 17. Bidirectional threaded rod; 18. Threaded sleeve; 19. Slider; 20. Slide; 21. Connecting block; 22. Clamping block. DETAILED DESCRIPTION

[0019] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described: Example

[0020] See also Figure 1 to Figure 2 Embodiment 1 is described, comprising a main body 1, on which a test bench 2 is fixedly mounted, on which a battery housing 7 is mounted, a clamping block 6 is mounted on the upper end of the battery housing 7 for clamping, the upper end of the clamping block 6 is fixedly mounted on a gas rod 5, the gas rod 5 is mounted on the output end of a gas cylinder 4, the arranged gas cylinder 4 controls the gas rod 5 to push the clamping block 6 at the bottom end to clamp the top end of the battery housing 7, a clamping assembly is mounted on the bottom end of the battery housing 7, both side ends of the main body 1 are fixedly mounted with fixed boxes 8, in which vacuum pumps 9 and helium cylinders 10 are respectively mounted, both side ends of the battery housing 7 are respectively provided with a first opening 12 and a second opening 13, the first opening 12 and the second opening 13 are both connected with connecting pipes 11, the connecting pipes 11 on both sides are respectively connected to the vacuum pump 9 and the helium cylinder 10, the gas cylinder 4 is at the bottom end of a supporting column 3, and the supporting column 3 is fixedly mounted on the main body 1;

[0021] In this embodiment, a vacuum pump 9 is provided to evacuate the gas in the battery housing 7 and fill it with helium through a helium cylinder 10. The detector provided on the helium cylinder 10 detects leakage to determine the sealing performance. Example

[0022] See also Figure 2 to Figure 3 Example 2 is described. This embodiment further describes Example 1, including a clamping assembly, a motor 16 is installed on the clamping assembly, a bidirectional threaded rod 17 is installed on the output end of the motor 16, threaded sleeves 18 are threadedly connected to the symmetrical ends of the bidirectional threaded rod 17, connecting blocks 21 are fixedly connected to the threaded sleeves 18 on both sides, clamping blocks 22 are fixedly installed on the tops of the connecting blocks 21 on both sides, a slider 19 is fixedly installed on the bottom of the threaded sleeve 18, a slide groove 20 is provided in the main body 1, and the slide groove 20 is slidably connected to the slider 19 at the bottom of the threaded sleeve 18, a bearing 15 is installed between the bidirectional threaded rod 17 and the main body 1, and is rotatably connected to the bearing 15, and a slot 14 is provided on the detection table 2, and the diameter of the slot 14 is larger than the diameter of the clamping block 22;

[0023] In this embodiment, the clamping assembly is driven by the motor 16 to achieve the clamping of the clamping block 22 on both side ends of the battery housing 7, which is convenient for sealing detection.

[0024] In specific applications, the helium inspection equipment provided in the device is configured to place the battery housing 7 that needs helium inspection on the inspection table 2 on the main body 1, and control the gas rod 5 through the cylinder 4 to push the clamping block 6 at the bottom to clamp the top of the battery housing 7, and then drive the rotation of the bidirectional threaded rod 17 through the motor 16 of the clamping assembly to drive the connecting blocks 21 on the threaded sleeves 18 at both sides to move inward and outward at the same time, so as to facilitate the clamping of the two side ends of the battery housing 7 by the clamping blocks 22, and facilitate the sealing inspection. The two side ends of the battery housing 7 are respectively provided with a first opening 12 and a second opening 13, wherein the first opening 12 and the second opening 13 are respectively connected to the vacuum pump 9 and the helium cylinder 10 through the connecting pipe 11, and the gas in the battery housing 7 is evacuated into a vacuum through the vacuum pump 9, and helium is filled into the helium cylinder 10, and the leak is detected by the detector provided on the helium cylinder 10 to judge the sealing, thereby ensuring the practicality of the entire device.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A helium inspection device for a battery casing, characterized in that: The invention comprises a main body (1), a test bench (2) is fixedly mounted on the main body (1), a battery housing (7) is mounted on the test bench (2), a clamping block (6) is mounted on the upper end of the battery housing (7) for clamping, the upper end of the clamping block (6) is fixedly mounted on a gas rod (5), the gas rod (5) is mounted on the output end of a gas cylinder (4), a clamping assembly is mounted on the bottom end of the battery housing (7), and fixed boxes (8) are fixedly mounted on both side ends of the main body (1), and vacuum pumps (9) and helium cylinders (10) are respectively mounted in the fixed boxes (8) on both sides.

2. A helium inspection device for battery casing according to claim 1, characterized in that: A motor (16) is mounted on the clamping assembly, a bidirectional threaded rod (17) is mounted on the output end of the motor (16), threaded sleeves (18) are threadedly connected to symmetrical ends of the bidirectional threaded rod (17), connecting blocks (21) are fixedly connected to the threaded sleeves (18) on both sides, and clamping blocks (22) are fixedly mounted on the top ends of the connecting blocks (21) on both sides.

3. A helium inspection device for battery casing according to claim 2, characterized in that: A sliding block (19) is fixedly mounted on the bottom end of the threaded sleeve (18), and a sliding groove (20) is provided in the main body (1), wherein the sliding groove (20) is slidably connected to the sliding block (19) at the bottom end of the threaded sleeve (18).

4. A helium inspection device for battery casing according to claim 2, characterized in that: A bearing (15) is installed between the bidirectional threaded rod (17) and the main body (1), and is rotatably connected to the bearing (15). A slot (14) is provided on the detection platform (2), and the diameter of the slot (14) is larger than the diameter of the clamping block (22).

5. The helium inspection device for battery casing according to claim 1, characterized in that: The battery housing (7) is provided with a first opening (12) and a second opening (13) at both side ends, the first opening (12) and the second opening (13) are both connected to a connecting pipe (11), and the connecting pipes (11) at both sides are connected to a vacuum pump (9) and a helium cylinder (10) respectively.

6. The helium inspection device for battery casing according to claim 1, characterized in that: The cylinder (4) is located at the bottom end of the support column (3), and the support column (3) is fixedly mounted on the main body (1).

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