Helium mass spectrum leak detection device for new energy battery shell
By adopting an air pump and a mobile structure in the helium mass spectrometry leak detection device, the problem of not being able to completely fill helium and eliminate residual helium in the prior art is solved, and the detection accuracy and reliability of subsequent detection are improved.
Patent Information
- Application Number
- CN202420847757.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The existing helium mass spectrometer cannot be completely filled with helium when detecting the new energy battery case, resulting in inaccurate detection and ineffective removal of residual helium, affecting subsequent detection.
An inflatable structure including an air pump, hose, fixed pipe, air outlet pipe and bolt, as well as a moving structure of a servo motor, threaded rod, sliding block, cover and alarm device are designed to inject helium into and discharge air through the air pump to ensure that The battery case is filled with helium, and the sliding block and cover are driven by the servo motor to detect air leakage and discharge residual helium.
It realizes efficient helium filling and effective elimination of residual helium inside the battery case, improves detection accuracy, and avoids residual helium affecting subsequent detection results.
Smart Images
Figure CN222212134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of leak detection devices, in particular to a new energy battery shell helium mass spectrometry leak detection device. Background Art
[0002] With the continuous development of science and technology, the structure of helium mass spectrometer leak detector is also constantly changing and updating. Helium mass spectrometer leak detector is an airtight leak detection instrument made according to the principle of mass spectrometry and using helium as leak indicator gas. Therefore, it is used to detect the sealing of new energy battery shells.
[0003] However, in the existing equipment, when testing the battery shell, the inside of the battery shell cannot be completely filled with helium, the test result is not accurate enough, and the residual helium cannot be removed from the testing equipment in time, which affects the next test. Therefore, a new energy battery shell helium mass spectrometry leak detection device is proposed. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a new energy battery shell helium mass spectrometer leak detection device.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new energy battery shell helium mass spectrometer leak detection device, including a base, two columns are fixedly provided on the upper surface of the base, and slide grooves are opened on the opposite sides of the two columns, and a horizontal column is fixedly provided on the upper surface of the two columns, an L-shaped fixing plate is fixedly provided on one side of the horizontal column, and a movable structure is provided on the L-shaped fixing plate, a placing table is fixedly provided on the upper surface of the base, a battery shell body is movably provided on the upper surface of the placing table, and an inflatable structure is provided on the upper surface of the base.
[0006] As a further description of the above technical solution:
[0007] The movable structure includes a servo motor fixedly connected to the upper surface of the L-shaped fixed plate and two threaded rods rotatably connected to the two columns respectively, the two threaded rods are threadedly connected with sliding blocks, covers are fixedly provided on the opposite sides of the two sliding blocks, and rotating columns are fixedly provided on the tops of the two threaded rods. The output shaft of the servo motor is movably connected to the two belts through a pulley, and the other ends of the two belts are movably connected to the corresponding two rotating columns respectively.
[0008] As a further description of the above technical solution:
[0009] The inflatable structure includes an air pump fixedly connected to the base, a hose is fixedly provided at the air outlet of the air pump, a fixed pipe is fixedly provided at the other end of the hose, and the hose passes through the fixed pipe, an air outlet pipe is fixedly provided at the bottom of the fixed pipe, and a bolt is connected to the inner thread of the air outlet pipe.
[0010] As a further description of the above technical solution:
[0011] The two sliding blocks slide in the sliding grooves provided in the two columns respectively, and the two sliding blocks are both made of stainless steel.
[0012] As a further description of the above technical solution:
[0013] A helium detection device is arranged inside the cover, an alarm device is arranged on one side of the outside of the cover, and an exhaust box is fixedly arranged on the upper surface of the cover.
[0014] As a further description of the above technical solution:
[0015] An anti-skid pad is fixedly arranged on the upper surface of the placing table, and the L-shaped fixing plate is made of stainless steel.
[0016] The utility model has the following beneficial effects:
[0017] 1. Compared with the prior art, the helium mass spectrometer leak detection device for new energy battery shells is provided with an air pump, a hose, a fixed pipe, an air outlet pipe and bolts, etc. The fixed pipe and the liquid injection port of the battery shell body are fixed, the bolts are removed, and then the air pump injects helium into the battery shell body through the hose. The helium will move to the upper part of the inside of the battery shell body, and the internal air will be discharged from the air outlet pipe through the fixed pipe. The air outlet pipe is detected by a helium detector until the helium is detected to be discharged, which can ensure that the battery shell body is filled with a large amount of helium. Tighten the bolts, and continue to inject helium into the battery shell body to apply pressure, so that the detection is more accurate.
[0018] 2. Compared with the prior art, the helium mass spectrometer leak detection device for new energy battery shells is provided with a rotating column, a threaded rod, a sliding block, a cover, an alarm device and an exhaust box, etc. The servo motor drives two rotating columns through two belts, and the two rotating columns drive two threaded rods, and the two threaded rods drive two sliding blocks connected by threads, and the two sliding blocks drive the cover to move downward. When the cover covers the battery shell body, it is tested for leaks. When helium is detected in the cover, an alarm is generated, and then the cover is raised and the exhaust box will discharge the residual helium in the cover until the alarm stops, which can prevent the cover from having residual helium and affecting the next detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a three-dimensional structural schematic diagram of a new energy battery shell helium mass spectrometer leak detection device proposed by the utility model;
[0020] Figure 2 This is a side view of a new energy battery shell helium mass spectrometer leak detection device proposed by the utility model;
[0021] Figure 3This is a three-dimensional schematic diagram of the mobile structure of a new energy battery shell helium mass spectrometer leak detection device proposed by the utility model;
[0022] Figure 4 This is an exploded diagram of the inflation structure of a new energy battery shell helium mass spectrometer leak detection device proposed by the utility model;
[0023] Figure 5 This is a three-dimensional diagram of the inflation structure of a new energy battery shell helium mass spectrometer leak detection device proposed by the utility model.
[0024] Legend:
[0025] 1. Base; 2. Vertical column; 3. Horizontal column; 4. L-shaped fixing plate; 5. Placement table; 6. Battery shell body; 7. Moving structure; 701. Servo motor; 702. Belt; 703. Rotating column; 704. Threaded rod; 705. Sliding block; 706. Cover; 8. Inflatable structure; 801. Air pump; 802. Hose; 803. Fixed pipe; 804. Exhaust pipe; 805. Bolt. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] Reference Figures 1 to 5The utility model provides a new energy battery shell helium mass spectrometer leak detection device: it includes a base 1, two columns 2 are fixedly provided on the upper surface of the base 1, and slide grooves are opened on the opposite sides of the two columns 2. A horizontal column 3 is fixedly provided on the upper surface of the two columns 2, and an L-shaped fixing plate 4 is fixedly provided on one side of the horizontal column 3. The L-shaped fixing plate 4 is made of stainless steel, and a movable structure 7 is provided on the L-shaped fixing plate 4. A placement table 5 is fixedly provided on the upper surface of the base 1, and an anti-skid pad is fixedly provided on the upper surface of the placement table 5. The anti-skid pad can place the battery shell body 6 to move during detection. The battery shell body 6 is movably provided on the upper surface of the placement table 5. Because the density of helium is smaller than that of air, when placing the battery shell body 6, the liquid injection port should be placed downward. An inflatable structure 8 is provided on the upper surface of the base 1, and the inflatable structure 8 includes An air pump 801 fixedly connected to the base 1 is included, the inlet of the air pump 801 is connected to a helium supply device, a hose 802 is fixedly provided at the air outlet of the air pump 801, a fixed pipe 803 is fixedly provided at the other end of the hose 802, and the hose 802 penetrates the fixed pipe 803, an air outlet pipe 804 is fixedly provided at the bottom of the fixed pipe 803, and a bolt 805 is connected to the inner thread of the air outlet pipe 804, the helium will move to the upper part of the battery shell body 6, and the original air inside will be discharged from the air outlet pipe 804 through the fixed pipe 803, and the air outlet pipe 804 is detected by a helium detector until the helium is detected to be discharged, which can ensure that the battery shell body 6 is filled with a large amount of helium, tighten the bolt 805, and continue to inject helium into the battery shell body 6 to apply pressure, so that the detection is more accurate;
[0028] The mobile structure 7 includes a servo motor 701 fixedly connected to the upper surface of the L-shaped fixed plate 4 and two threaded rods 704 rotatably connected to the two columns 2 respectively. The two threaded rods 704 are both threadedly connected with sliding blocks 705. The two sliding blocks 705 slide in the sliding grooves opened in the two columns 2 respectively. The two sliding blocks 705 are made of stainless steel. Covers 706 are fixedly provided on the opposite sides of the two sliding blocks 705. A helium detection device is provided inside the cover 706. An alarm device is provided on the outer side of the cover 706. An exhaust box is fixedly provided on the upper surface of the cover 706. The exhaust box will discharge the residual helium in the cover 706 until the alarm stops, so as to prevent the cover 706 from having residual helium and affecting the next detection result. Rotating columns 703 are fixedly provided on the tops of the two threaded rods 704. The output shaft of the servo motor 701 is movably connected to the two belts 702 through a pulley, and the other ends of the two belts 702 are movably connected to the corresponding two rotating columns 703 respectively.
[0029] Working principle: Place the battery shell body 6 with the liquid injection port facing downward on the placement table 5. The anti-skid pad on the upper surface of the placement table 5 can prevent the battery shell body 6 from moving during detection. Then fix the fixing tube 803 and the liquid injection port of the battery shell body 6. Remove the bolt 805. Then the air pump 801 injects helium into the battery shell body 6 through the hose 802. The helium will move upward inside the battery shell body 6. The original air inside will be discharged from the outlet pipe 804 through the fixing tube 803. Use a helium detector to detect the outlet pipe 804 until the helium is detected to be discharged. This ensures that the battery shell body 6 is filled with a large amount of helium. Tighten the bolt 805, continue to inject helium into the battery shell body 6 to apply pressure, and the servo The motor 701 drives two rotating columns 703 through two belts 702, and the two rotating columns 703 drive two threaded rods 704. The two threaded rods 704 drive two sliding blocks 705 that are threadedly connected. The two sliding blocks 705 drive the cover 706 to move downward. When the cover 706 covers the battery shell body 6, it is tested for air leakage. When helium is detected in the cover 706, an alarm will be triggered, and then the cover 706 will be raised. The exhaust box will discharge the residual helium in the cover 706 until the alarm stops, which can prevent the cover 706 from having residual helium and affecting the next test result. The staff will turn off the air pump 801, take out the fixing tube 803, and then deal with the unqualified battery shell body 6.
[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A new energy battery shell helium mass spectrometer leak detection device, comprising a base (1), characterized in that: Two upright posts (2) are fixedly provided on the upper surface of the base (1), and a slide groove is provided on opposite sides of the two upright posts (2). A transverse post (3) is fixedly provided on the upper surface of the two upright posts (2), and an L-shaped fixing plate (4) is fixedly provided on one side of the transverse post (3). A movable structure (7) is provided on the L-shaped fixing plate (4). A placement platform (5) is fixedly provided on the upper surface of the base (1), and a battery shell body (6) is movably provided on the upper surface of the placement platform (5). An inflation structure (8) is provided on the upper surface of the base (1).
2. A new energy battery shell helium mass spectrometer leak detection device according to claim 1, characterized in that: The movable structure (7) comprises a servo motor (701) fixedly connected to the upper surface of the L-shaped fixed plate (4) and two threaded rods (704) rotatably connected to the two columns (2), the two threaded rods (704) are threadedly connected with sliding blocks (705), a cover (706) is fixedly provided on the opposite side of the two sliding blocks (705), and a rotating column (703) is fixedly provided on the top of the two threaded rods (704), the output shaft of the servo motor (701) is movably connected to the two belts (702) through a pulley, and the other ends of the two belts (702) are movably connected to the corresponding two rotating columns (703).
3. A new energy battery shell helium mass spectrometer leak detection device according to claim 1, characterized in that: The inflatable structure (8) comprises an air pump (801) fixedly connected to the base (1); a hose (802) is fixedly provided at the air outlet of the air pump (801); a fixed pipe (803) is fixedly provided at the other end of the hose (802); the hose (802) passes through the fixed pipe (803); an air outlet pipe (804) is fixedly provided at the bottom of the fixed pipe (803); and a bolt (805) is connected to the inner thread of the air outlet pipe (804).
4. A new energy battery shell helium mass spectrometer leak detection device according to claim 2, characterized in that: The two sliding blocks (705) slide in the sliding grooves provided in the two upright posts (2) respectively, and the two sliding blocks (705) are both made of stainless steel.
5. A new energy battery shell helium mass spectrometer leak detection device according to claim 2, characterized in that: A helium detection device is provided inside the cover (706), an alarm device is provided on one side of the outside of the cover (706), and an exhaust box is fixedly provided on the upper surface of the cover (706).
6. A new energy battery shell helium mass spectrometer leak detection device according to claim 1, characterized in that: An anti-skid pad is fixedly provided on the upper surface of the placement table (5), and the L-shaped fixing plate (4) is made of stainless steel.