New energy automobile battery airtightness detection device

Abstract

The utility model discloses a new energy automobile battery airtightness detection device, which comprises a helium mass spectrometer leak detector body, a convenient moving mechanism and a stabilizing mechanism, one side of the helium mass spectrometer leak detector body is provided with a convenient detection mechanism, the convenient detection mechanism comprises a detection channel, and one side of the detection channel is fixedly connected with a transparent detection box. A reinforcing frame is fixedly connected to the exterior of the transparent detection box, mounting plates are fixedly connected to the two sides of the reinforcing frame, and air cylinders are fixedly mounted on the lower sides of the mounting plates. According to the utility model, through the arrangement of the convenient detection mechanism, after the battery pack is filled with helium, the helium mass spectrometer leak detector body detects the leakage condition of the helium in the transparent detection box, if the battery has a leakage point, the helium can leak out, and the helium mass spectrometer leak detector body can accurately detect the leakage point and judge the airtight performance of the battery according to the detection data; the helium mass spectrum leak detection method can detect tiny leakage, and compared with a differential pressure method, the helium mass spectrum leak detection method has the advantages that the detection precision is greatly improved, and tiny leakage of the battery can be effectively detected.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology for new energy vehicle motors, specifically to an airtightness testing device for new energy vehicle batteries. Background Technology

[0002] New energy vehicles refer to automobiles that use new power systems and are driven entirely or primarily by new energy sources. Compared with traditional fuel vehicles, they have the characteristics of energy saving, environmental protection, and high efficiency. During use, new energy vehicles can significantly reduce the emission of pollutants such as carbon dioxide, nitrogen oxides, and particulate matter compared with traditional fuel vehicles, which helps to reduce greenhouse gas emissions, improve air quality, and reduce environmental pollution.

[0003] Most new energy vehicles currently use batteries for power. Therefore, after the batteries are manufactured, their airtightness needs to be tested. This is typically done using battery airtightness testing devices. Most current devices use the differential pressure method, which determines the presence and extent of leaks by detecting changes in the pressure difference between the inside and outside of the tested object. However, this method can only detect leaks of a certain magnitude. For minute leaks, the pressure change is not significant, making accurate detection difficult and impractical. Therefore, to address these issues, a new energy vehicle battery airtightness testing device is proposed. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a device for testing the air tightness of new energy vehicle batteries.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a new energy vehicle battery airtightness testing device, comprising a helium mass spectrometer leak detector body, a portable mechanism, and a stabilizing mechanism. A portable testing mechanism is provided on one side of the helium mass spectrometer leak detector body. The portable testing mechanism includes a testing channel, a transparent testing box fixedly connected to one side of the testing channel, a reinforcing frame fixedly connected to the outside of the transparent testing box, mounting plates fixedly connected to both sides of the reinforcing frame, a cylinder fixedly mounted on the lower side of the mounting plate, a cover plate fixedly connected to the output end of the cylinder, and a blocking block fixedly connected to the lower side of the cover plate. Four mounting plates and four cylinders are provided, respectively positioned on both sides of the testing box.

[0006] Preferably, several reinforcing frames are provided, the transparent detection box is made of glass, and the detection channel is fixedly connected to the output end of the helium mass spectrometer leak detector. One end of the detection channel communicates with the transparent detection box, and the reinforcing frames are provided on the lower side and front and rear sides of the transparent detection box.

[0007] Preferably, a protective sheet is fixedly connected between the helium mass spectrometer leak detector body and the transparent detection box, a rubber ring is fixedly connected to the outer side of the plug, and a rubber ring is fixedly connected to the upper side of the transparent detection box. Two protective sheets are provided, and the rubber ring is positioned in the middle of the outer side of the plug.

[0008] Preferably, the protective plate is positioned outside the detection channel, and the cover plate is positioned on the upper side of the transparent detection box. When the cylinder rises, the block will move out of the transparent detection box, facilitating the placement of the battery into the transparent detection box.

[0009] Preferably, the movable mechanism includes a handrail fixedly connected to one side of the helium mass spectrometer leak detector body. A first omnidirectional wheel is rotatably connected to the lower side of the helium mass spectrometer leak detector body. A fixing plate is fixedly connected to the lower side of the reinforcing frame. A guide post is fixedly connected to the lower side of the fixing plate. A second omnidirectional wheel is fixedly connected to the lower side of the guide post. The first and second omnidirectional wheels are arranged at the same level. The detection channel allows the helium mass spectrometer leak detector body to be connected to the transparent detection box.

[0010] Preferably, the stabilizing mechanism includes an electric push rod, which is fixedly installed on the lower side of the fixed plate. A vacuum pump is fixedly installed on the lower side of the electric push rod, and a suction cup is fixedly connected to the output end of the vacuum pump. Four stabilizing mechanisms are provided, respectively located at the four corners of the lower side of the fixed plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, through the setting of a convenient detection mechanism, allows the battery pack to be filled with helium. The helium mass spectrometer leak detector detects the leakage of helium in the transparent detection box. If there is a leak in the battery, helium will leak out, which the helium mass spectrometer leak detector can accurately detect. Based on the detection data, the airtightness of the battery can be judged. The helium mass spectrometer leak detection method can detect extremely small leaks. Compared with the pressure difference method, it greatly improves the detection accuracy and can effectively detect tiny leaks in the battery. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the first overall structure of this utility model from the front view;

[0015] Figure 2 This is a schematic diagram of the second overall structure of this utility model from the front view;

[0016] Figure 3This is a schematic diagram of the third overall structure of this utility model from the front.

[0017] In the diagram: 1. Helium mass spectrometer leak detector body; 2. Detection channel; 3. Transparent detection box; 4. Reinforcing frame; 5. Mounting plate; 6. Cylinder; 7. Cover plate; 8. Block; 9. Protective plate; 10. Rubber ring; 11. Rubber ring; 12. Handrail; 13. First caster wheel; 14. Fixing plate; 15. Guide column; 16. Second caster wheel; 17. Electric push rod; 18. Vacuum pump; 19. Suction cup. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 A new energy vehicle battery airtightness testing device includes a helium mass spectrometer leak detector body 1, a portable mechanism, and a stabilizing mechanism. A portable testing mechanism is located on one side of the helium mass spectrometer leak detector body 1. This mechanism includes a testing channel 2, a transparent testing box 3 fixedly connected to one side of the testing channel 2, a reinforcing frame 4 fixedly connected to the outside of the transparent testing box 3, mounting plates 5 fixedly connected to both sides of the reinforcing frame 4, a cylinder 6 fixedly mounted on the lower side of the mounting plate 5, a cover plate 7 fixedly connected to the output end of the cylinder 6, and a blocking block 8 fixedly connected to the lower side of the cover plate 7. Several reinforcing frames 4 are provided. The transparent testing box 3 is made of glass. The testing channel 2 connects to the output of the helium mass spectrometer leak detector body 1. The output end is fixedly connected. The transparent testing box 3 is made of glass, which allows the testing personnel to directly observe the state of the battery during the testing process. The reinforcing frame 4 reinforces the transparent testing box 3 to ensure its structural strength. Four mounting plates 5 and cylinders 6 are respectively set on both sides of the testing box. The cylinders 6 drive the lifting and lowering of the cover plate 7 and the block 8 to realize the rapid sealing and opening of the transparent testing box 3, which is convenient for the insertion and removal of the battery. The rubber ring 10 on the outside of the block 8 cooperates with the rubber ring 11 on the upper side of the transparent testing box 3 to effectively ensure the sealing of the transparent testing box 3, prevent helium leakage, and ensure the accuracy of the test results. The helium mass spectrometry leak detection method is used to achieve accurate detection of tiny leaks.

[0020] In one aspect of this embodiment, the protective sheet 9 can protect the detection channel 2 from damage caused by external impacts, friction, or other factors, maintaining the integrity and stability of the detection gas path between the helium mass spectrometer leak detector body 1 and the transparent detection box 3. This ensures the normal operation of the detection process and reduces detection errors or equipment malfunctions caused by damage to the detection channel 2. When the cylinder 6 drives the cover plate 7 and the plug 8 to descend, the rubber ring 10 and the rubber ring 11 fit tightly together, forming a good sealing structure. This design effectively prevents helium leakage inside the transparent detection box 3, ensuring the airtightness of the detection environment. Because helium mass spectrometry leak detection relies on the detection of helium leaks, a large leakage of helium will affect the accuracy of the detection, making it impossible to accurately determine the airtightness of the battery. The sealing effect of the rubber ring 10 and the rubber ring 11 ensures that the helium mass spectrometer leak detector body 1 can accurately detect the helium leaking from the battery, thereby improving the reliability and accuracy of the detection results.

[0021] In one aspect of this embodiment, the movable mechanism composed of the handrail 12, the first caster wheel 13, the fixed plate 14, the guide column 15, and the second caster wheel 16 enables the testing device to be easily moved between different testing sites, improving the flexibility and convenience of the device and meeting the needs of multi-site testing in actual production. The first caster wheel 13 and the second caster wheel 16 are set at the same horizontal level, and together with the testing channel 2, they connect the helium mass spectrometer leak detector body 1 to the transparent testing box 3, ensuring structural stability during device movement. The four stabilizing mechanisms set at the four corners under the fixed plate 14 drive the vacuum pump 18 and the suction cup 19 through the electric push rod 17. During testing, the suction cup 19 adheres to the ground, enhancing the stability of the device and avoiding the impact of device shaking on the test results. Compared with traditional testing devices, this design effectively improves the reliability and accuracy of the test.

[0022] The working principle of this utility model is as follows: When using this new energy vehicle battery airtightness testing device, to test the airtightness of the new energy vehicle battery, firstly, cylinder 6 is operated. Cylinder 6 drives the cover plate 7 and the plug 8 to rise, causing the plug 8 to move out of the transparent testing box 3. At this time, the battery filled with helium is placed into the transparent testing box 3. Subsequently, cylinder 6 is operated again, driving the cover plate 7 and the plug 8 to fall. The rubber ring 10 on the outside of the plug 8 is tightly fitted with the rubber ring 11 on the upper side of the transparent testing box 3, sealing the transparent testing box 3. The helium mass spectrometer leak detector body 1 is connected to the transparent testing box 3 through the detection channel 2. The helium mass spectrometer leak detector body 1 starts to work, detecting the leakage of helium in the transparent testing box 3. If there is a leak in the battery, helium will leak out, which the helium mass spectrometer leak detector body 1 can accurately detect, and the airtightness performance of the battery can be judged based on the detection data. When it is necessary to move the testing device, the helium mass spectrometer leak detector body 1 can be pushed by the handle 12, and the first universal wheel 13 and the second universal wheel 16 can make the device move flexibly. Upon reaching the detection position, the electric push rod 17 is activated. The electric push rod 17 drives the vacuum pump 18 and suction cup 19 to descend. After the suction cup 19 contacts the ground, the vacuum pump 18 operates, causing the suction cup 19 to adhere to the ground, enhancing the stability of the device and ensuring that the detection process is not affected by external interference. All electrical equipment in this solution is powered by an external power source.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any 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 new energy vehicle battery airtightness testing device, comprising a helium mass spectrometer leak detector body (1), a movable mechanism, and a stabilizing mechanism, characterized in that: A convenient detection mechanism is provided on one side of the helium mass spectrometer leak detector body (1). The convenient detection mechanism includes a detection channel (2). A transparent detection box (3) is fixedly connected to one side of the detection channel (2). A reinforcing frame (4) is fixedly connected to the outside of the transparent detection box (3). Mounting plates (5) are fixedly connected to both sides of the reinforcing frame (4). A cylinder (6) is fixedly installed on the lower side of the mounting plate (5). A cover plate (7) is fixedly connected to the output end of the cylinder (6). A block (8) is fixedly connected to the lower side of the cover plate (7).

2. The new energy vehicle battery airtightness testing device according to claim 1, characterized in that: The reinforcement frame (4) is provided in several parts, the transparent detection box (3) is made of glass, and the detection channel (2) is fixedly connected to the output end of the helium mass spectrometer leak detector body (1).

3. The new energy vehicle battery airtightness testing device according to claim 1, characterized in that: A protective sheet (9) is fixedly connected between the helium mass spectrometer leak detector body (1) and the transparent detection box (3). A rubber ring (10) is fixedly connected to the outside of the plug (8). A rubber ring (11) is fixedly connected to the upper side of the transparent detection box (3).

4. The new energy vehicle battery airtightness testing device according to claim 3, characterized in that: The protective sheet (9) is located on the outside of the detection channel (2), and the cover plate (7) is located on the upper side of the transparent detection box (3).

5. The new energy vehicle battery airtightness testing device according to claim 1, characterized in that: The movable mechanism includes a handrail (12), which is fixedly connected to one side of the helium mass spectrometer leak detector body (1). A first universal wheel (13) is rotatably connected to the lower side of the helium mass spectrometer leak detector body (1). A fixing plate (14) is fixedly connected to the lower side of the reinforcing frame (4). A guide post (15) is fixedly connected to the lower side of the fixing plate (14). A second universal wheel (16) is fixedly connected to the lower side of the guide post (15).

6. The new energy vehicle battery airtightness testing device according to claim 5, characterized in that: The stabilizing mechanism includes an electric push rod (17), which is fixedly installed on the lower side of the fixed plate (14). A vacuum pump (18) is fixedly installed on the lower side of the electric push rod (17), and a suction cup (19) is fixedly connected to the output end of the vacuum pump (18).

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