Steel shell battery shell welding airtightness detection mechanism
By designing a mechanism for testing the airtightness of steel-cased battery casing welding, and using nitrogen blowing and air extraction to remove residual helium, the problem of helium residue affecting the accuracy of testing in existing technologies has been solved, achieving rapid and accurate airtightness testing.
Patent Information
- Application Number
- CN202422920053.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing helium leak detection equipment cannot quickly detect the airtightness of steel-cased battery shells, and helium residue can affect the accuracy of subsequent battery testing.
A mechanism for testing the airtightness of steel-cased battery casing welding was designed. Residual helium gas is blown out using a nitrogen blowing nozzle and then extracted through a vacuum nozzle. The gas composition is then detected using a helium gas detector to ensure the accuracy of the test.
By blowing nitrogen and evacuating the air, residual helium is effectively removed, improving the accuracy of battery casing inspection and preventing residual helium from affecting the inspection results of the next battery.
Smart Images
Figure CN223525949U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery detection equipment especially relates to a steel shell battery shell welding air tightness detection mechanism. BACKGROUND
[0002] With the vigorous development of new energy vehicles, the demand of steel shell batteries is increasing sharply because they are the power source of new energy vehicles. The sealing performance of the battery shell of the steel shell battery has a great influence on the safety performance of the battery. Poor sealing can cause electrolyte leakage, shell expansion, fire and explosion, and other safety accidents. In the production process of the steel shell battery, the sealing performance detection of the steel shell battery shell is an important process.
[0003] At present, the industry mainly uses helium leak detection method. However, the existing detection equipment cannot quickly detect the helium leakage of the steel shell battery shell. After helium detection is completed, if helium leakage occurs, helium will be left in the cavity where the battery is placed. If the battery is placed again for detection, it will affect the detection of the battery, resulting in inaccurate test. SUMMARY
[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a steel shell battery shell welding air tightness detection mechanism.
[0005] The utility model discloses a steel shell battery shell welding air tightness detection mechanism, including installation platform, be equipped with detection platform and horizontal shift control air cylinder on the installation platform, be equipped with battery detection cavity on the detection platform, the horizontal shift control air cylinder controls a lifting control air cylinder movement, the lifting control air cylinder controls the movement of the cover plate, the cover plate can cover on the detection platform, and seal the battery detection cavity, the installation platform is equipped with the air outlet nozzle mounting support still, one side of the cover plate is equipped with the nitrogen blowing nozzle mounting plate, be equipped with the nitrogen blowing nozzle on the nitrogen blowing nozzle mounting plate, be equipped with the air outlet nozzle on the air outlet nozzle mounting support. When the battery shell detection is completed, the lifting control air cylinder controls the cover plate to rise, the horizontal shift control air cylinder controls the horizontal shift of the cover plate, the battery detection cavity is opened, the nitrogen blowing nozzle blows nitrogen into the battery detection cavity, while the nitrogen blowing nozzle blows nitrogen, the air outlet nozzle starts to exhaust, separates the residual helium in the battery detection cavity, so that the next battery shell detection will not be affected by the helium leakage of the previous battery shell, resulting in inaccurate detection.
[0006] As an improvement of the steel shell battery shell welding air tightness detection mechanism of the utility model, when the cover plate is opened, the nitrogen blowing nozzle blows nitrogen into the battery detection cavity, and the air outlet nozzle separates the gas in the battery detection cavity.
[0007] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the nitrogen blowing nozzle mounting plate is equipped with an arc-shaped hole, and the nitrogen blowing nozzle mounting plate can adjust the installation angle through the arc-shaped hole.
[0008] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the air outlet nozzle mounting support includes a vertical rod and a horizontal rod, the vertical rod is equipped with a connecting seat, and the horizontal rod is arranged on the connecting seat.
[0009] The connecting seat is equipped with a vertical rod perforation and a horizontal rod perforation, the vertical rod perforation and the horizontal rod perforation are both equipped with notches, and the notches are adjusted by screws.
[0010] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the bottom of the battery detection cavity is equipped with an air outlet hole, and the air outlet hole is connected with a helium detector through a pipeline.
[0011] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the installation platform is also equipped with a gas needle control cylinder, the gas needle control cylinder controls the movement of a gas needle mounting plate, the gas needle mounting plate is equipped with a gas needle, the gas needle is located on one side of the detection platform, one side of the detection platform corresponding to the gas needle is equipped with a gas needle perforation, and the gas needle is inserted into the battery detection cavity and the battery shell cavity in the battery detection cavity from the gas needle perforation.
[0012] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the bottom surface of the cover plate is equipped with a sealing cover plate, the side wall in the battery detection cavity is equipped with an annular sealing groove, and the sealing cover plate can be clamped into the annular sealing groove.
[0013] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the middle part of the sealing cover plate is equipped with an elastic pressing block, and when the sealing cover plate covers the battery detection cavity, the elastic pressing block is pressed on the battery shell to position the battery.
[0014] As an improvement of the utility model steel case battery shell welding gas tightness detection mechanism, the installation platform is also equipped with a linear guide rail, the lifting control cylinder is installed on a cylinder mounting plate, and the cylinder mounting plate is connected with the linear guide rail through a sliding block.
[0015] The utility model discloses beneficial effect lies in: the utility model discloses through filling nitrogen gas when battery detection cavity opens, and through the way of the gas nozzle that removes the gas in battery detection cavity, can prevent the detection of the next battery shell under the influence of the helium gas that battery detection cavity remains, can improve the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the perspective view of the utility model;
[0017] Figure 2 It is the front view of the utility model;
[0018] Figure 3 It is the structure schematic view of single detection platform of the utility model;
[0019] Figure 4 It is the front view of single detection platform of the utility model;
[0020] Figure 5 It is the plan view of single detection platform of the utility model;
[0021] The figure mark is: 1, installation platform, 2, detection platform, 3, horizontal control cylinder, 4, battery detection cavity, 5, lift control cylinder, 6, cover plate, 7, gas extraction nozzle mounting support, 8, nitrogen gas blowing nozzle mounting plate, 9, nitrogen gas blowing nozzle, 10, gas extraction nozzle, 11, gas extraction hole, 12, pipeline, 13, helium detector, 14, gas needle control cylinder, 15, gas needle mounting plate, 16, gas needle, 17, gas needle perforation, 18, linear guide rail, 41, annular sealing groove, 51, cylinder mounting plate, 61, sealing cover plate, 62, elastic pressing piece, 71, vertical rod, 72, horizontal rod, 73, connecting seat, 81, arc-shaped hole. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.
[0024] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.
[0025] As shown in Figures 1-5 A kind of steel shell battery shell welding gas tightness detection mechanism, including installation platform 1, detection platform 2 and horizontal shift control cylinder 3 are equipped on installation platform 1, detection platform 2 is equipped with battery detection cavity 4, horizontal shift control cylinder 3 controls a lifting control cylinder 5 movement, lifting control cylinder 5 controls cover plate 6 movement, cover plate 6 can be covered on detection platform 2, and seal battery detection cavity 4, installation platform 4 is also equipped with suction nozzle mounting bracket 7, one side of cover plate 6 is equipped with nitrogen blowing nozzle mounting plate 8, nitrogen blowing nozzle mounting plate 8 is equipped with nitrogen blowing nozzle 9, suction nozzle mounting bracket 7 is equipped with suction nozzle 10.When battery shell detection is completed, lifting control cylinder 5 controls cover plate 6 to rise, horizontal shift control cylinder 3 controls cover plate 6 to shift, battery detection cavity 4 is opened, nitrogen blowing nozzle 9 blows nitrogen into battery detection cavity 4, while nitrogen blowing nozzle 9 blows nitrogen, suction nozzle 10 starts to pump, and the residual helium in battery detection cavity 4 is pumped away, so that the next battery shell detection will not be affected by the helium leaked from the previous battery shell, resulting in inaccurate detection.
[0026] Preferably, when cover plate 6 is opened, nitrogen blowing nozzle 9 blows nitrogen into battery detection cavity 4, and suction nozzle 10 pumps away the gas in battery detection cavity 4.
[0027] Preferably, nitrogen blowing nozzle mounting plate 8 is provided with an arc-shaped hole 81, and nitrogen blowing nozzle mounting plate 8 can adjust the installation angle through arc-shaped hole 81. Arc-shaped hole 81 can adjust the blowing angle of nitrogen blowing nozzle 9, so that nitrogen can quickly blow away the helium in the battery detection cavity.
[0028] Preferably, suction nozzle mounting bracket 7 includes a vertical rod 71 and a horizontal rod 72, the vertical rod 71 is provided with a connecting seat 73, and the horizontal rod 72 is provided on the connecting seat 73.
[0029] Connecting seat 73 is provided with vertical rod perforations and horizontal rod perforations, and the vertical rod perforations and the horizontal rod perforations are provided with notches, and the notches are adjusted by screws.
[0030] The bottom of the battery detection cavity 4 is preferably provided with an air extraction hole 11 connected with a helium detector 13 through a pipeline 12.
[0031] The mounting platform 1 is preferably further provided with a gas needle control cylinder 14, which controls the movement of a gas needle mounting plate 15 provided with a gas needle 16 located at one side of the detection platform 2.
[0032] The bottom surface of the cover plate 6 is preferably provided with a sealing cover plate 61, and the side wall of the battery detection cavity 4 is provided with an annular sealing groove 41, and the sealing cover plate 61 can be clamped into the annular sealing groove 41.
[0033] The middle part of the sealing cover plate 61 is preferably provided with an elastic pressing block 62, which can position the battery when the sealing cover plate 61 covers the battery detection cavity 4.
[0034] The mounting platform 1 is preferably further provided with a linear guide rail 18, and the lifting control cylinder 5 is installed on a cylinder mounting plate 51 connected with the linear guide rail 18 through a sliding block.
[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and structures of the utility model, and the scope of the utility model is defined by the appended claims and their equivalent scope.
Claims
1. A steel can battery case welding airtightness detection mechanism comprising a mounting platform, characterized in that, The installation platform is provided with a detection platform and a horizontal movement control cylinder, the detection platform is provided with a battery detection cavity, the horizontal movement control cylinder controls a lifting control cylinder to move, the lifting control cylinder controls a cover plate to move, the cover plate can cover the detection platform and seal the battery detection cavity, the installation platform is further provided with a suction nozzle mounting bracket, one side of the cover plate is provided with a nitrogen blowing nozzle mounting plate, the nitrogen blowing nozzle mounting plate is provided with a nitrogen blowing nozzle, and the suction nozzle mounting bracket is provided with a suction nozzle.
2. The steel can battery case welding hermeticity detection mechanism according to claim 1, characterized by, When the cover plate is opened, the nitrogen blowing nozzle blows nitrogen into the battery detection cavity, and the suction nozzle removes the gas in the battery detection cavity.
3. The steel can battery case seal integrity inspection mechanism according to claim 2, characterized by, The nitrogen blowing nozzle mounting plate is provided with an arc-shaped hole, and the nitrogen blowing nozzle mounting plate can adjust the installation angle through the arc-shaped hole.
4. The steel can battery case seal integrity inspection mechanism according to claim 2, characterized by, The suction nozzle mounting bracket comprises a vertical rod and a horizontal rod, the vertical rod is provided with a connecting seat, and the horizontal rod penetrates the connecting seat; The connecting seat is provided with a vertical rod through hole and a horizontal rod through hole, the vertical rod through hole and the horizontal rod through hole are both provided with notches, and the tightness of the notches is adjusted through screws.
5. The steel can battery case seal integrity inspection mechanism according to claim 1, characterized by, The bottom of the battery detection cavity is provided with a suction hole connected with a helium detector through a pipeline.
6. The steel can battery case seal integrity inspection mechanism according to claim 1, wherein The installation platform is further provided with a gas needle control cylinder, the gas needle control cylinder controls a gas needle mounting plate to move, the gas needle mounting plate is provided with a gas needle, the gas needle is located on one side of the detection platform, one side of the detection platform corresponding to the gas needle is provided with a gas needle through hole, and the gas needle penetrates into the battery detection cavity and a battery shell cavity in the battery detection cavity from the gas needle through hole.
7. The steel can battery case seal integrity inspection mechanism according to claim 1, wherein The bottom surface of the cover plate is provided with a sealing cover plate, the sidewall in the battery detection cavity is provided with an annular sealing groove, and the sealing cover plate can be clamped into the annular sealing groove.
8. The steel can battery case seal integrity inspection mechanism according to claim 7, characterized by, The middle part of the sealing cover plate is provided with an elastic pressing block, when the sealing cover plate covers the battery detection cavity, the elastic pressing block is pressed on the battery shell to position the battery.
9. The steel can battery case seal integrity inspection mechanism according to claim 1, wherein, The installation platform is further provided with a linear guide rail, the lifting control cylinder is mounted on a cylinder mounting plate, and the cylinder mounting plate is connected with the linear guide rail through a sliding block.