Air tightness detection device for battery pack

Abstract

The utility model relates to an air tightness detection device for a battery pack, which comprises a detection mechanism, an adjusting mechanism is arranged in the detection mechanism, the adjusting mechanism comprises a hydraulic cylinder, the hydraulic cylinder is fixedly installed at the top of the detection mechanism, a bearing frame is fixedly installed at the output end of the hydraulic cylinder, and the bearing frame is fixedly installed on the detection mechanism. Extending plates are fixedly mounted at the upper ends of the left side and the right side of the bearing frame, a bearing net plate is embedded in the inner bottom wall of the bearing frame, a camera is fixedly mounted on the front side of the inner wall of the bearing frame, a linear motor is fixedly mounted on the inner top wall of the bearing frame, and the linear motor extends to the bottoms of the extending plates and is fixedly connected with the extending plates. According to the air tightness detection device for the battery pack, through the arrangement of the adjusting mechanism and the detection mechanism, large defect detection can be rapidly carried out, a battery pack shell with large defects can be rapidly screened out, continuous detection of the battery pack shell is achieved, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack detection, in particular to an air tightness detection device for a battery pack. Background Art

[0002] A battery pack is an integral unit assembled from multiple battery modules. Its main structure includes a battery protective shell and several batteries for storing and providing electrical energy. During the battery pack processing, it is necessary to perform multiple tests on it to ensure the safety of the battery pack. Among them, the air tightness test of the battery pack shell is one of the important steps in the battery pack testing. It can ensure that the interior of the battery pack is not contaminated or invaded by impurities such as dust and water vapor from the external environment, which is of great significance to ensuring the safety, service life and performance stability of the battery pack.

[0003] In the process of implementing this application, the inventors found that there are at least the following problems in this technology: the existing airtightness detection equipment is relatively complicated to operate during use and requires professional operating techniques, which limits the use of the equipment. When more battery packs need to be tested, the cost of quickly screening out battery pack shells with large defects is high and the detection continuity is poor. Therefore, an airtightness detection device for battery packs is proposed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an airtightness detection device for a battery pack, which has the advantages of rapid pre-screening, etc., and solves the problem of poor detection efficiency of the existing battery pack airtightness detection equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airtightness detection device for a battery pack, comprising a detection mechanism, wherein an adjustment mechanism is arranged inside the detection mechanism;

[0006] The adjusting mechanism includes a hydraulic cylinder, which is fixedly installed on the top of the detection mechanism, a carrier frame is fixedly installed on the output end of the hydraulic cylinder, extension plates are fixedly installed on the upper ends of the left and right sides of the carrier frame, a bearing mesh plate is embedded in the inner bottom wall of the carrier frame, a camera is fixedly installed on the front side of the inner wall of the carrier frame, a linear motor is fixedly installed on the inner top wall of the carrier frame, the linear motor extends to the bottom of the extension plate and is fixedly connected to the extension plate, a double-headed cylinder is fixedly installed on the bottom of the linear motor, and clamps are fixedly installed on the output ends of the double-headed cylinder.

[0007] Furthermore, the detection mechanism includes a test pool, a support frame is fixedly installed on the outside of the test pool, linear guide rails are fixedly installed on the front and rear sides of the inner wall of the support frame, and conveyors are fixedly installed on the lower ends of the left and right sides of the support frame.

[0008] Furthermore, the top of the conveyor and the top of the bearing mesh plate are in the same horizontal plane, and the output end of the linear guide rail is fixedly connected to the bearing frame.

[0009] Furthermore, the hydraulic cylinder is fixedly mounted on the top of the support frame, and penetrates and extends into the interior of the support frame. The back of the test pool is fixed and connected with a sewage pipe.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] The airtightness detection device for the battery pack can quickly perform large defect detection through the setting of the adjustment mechanism and the detection mechanism, quickly screen out the battery pack shells with large defects, realize the continuity detection of the battery pack shells, and improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of the regulating mechanism of the utility model.

[0014] In the figure: 1. test pool; 2. support frame; 3. hydraulic cylinder; 4. load-bearing frame; 5. extension plate; 6. load-bearing mesh plate; 7. linear guide rail; 8. camera; 9. linear motor; 10. double-head cylinder; 11. clamping plate; 12. conveyor. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1-2 In this embodiment, an airtightness detection device for a battery pack includes a detection mechanism, and an adjustment mechanism is arranged inside the detection mechanism.

[0017] In this embodiment, the adjustment mechanism includes a hydraulic cylinder 3, which is fixedly installed on the top of the detection mechanism. A carrier frame 4 is fixedly installed on the output end of the hydraulic cylinder 3. Extension plates 5 are fixedly installed on the upper ends of the left and right sides of the carrier frame 4. A bearing mesh plate 6 is embedded in the inner bottom wall of the carrier frame 4. A camera 8 is fixedly installed on the front side of the inner wall of the carrier frame 4. A linear motor 9 is fixedly installed on the inner top wall of the carrier frame 4. The linear motor 9 extends to the bottom of the extension plate 5 and is fixedly connected to the extension plate 5. A double-headed cylinder 10 is fixedly installed on the bottom of the linear motor 9, and a clamp 11 is fixedly installed on the output end of the double-headed cylinder 10.

[0018] It should be noted that the provision of the extension plate 5 enables the battery pack shell to be conveniently loaded and unloaded via the linear motor 9 .

[0019] Specifically, start the linear motor 9 to drive the double-headed cylinder 10 to move to the far right, and start the double-headed cylinder 10 to make the front and rear clamps 11 move relative to each other, clamp and fix the battery pack shell transported from the right, and transport it to the left to the top of the supporting mesh plate 6. At this time, the double-headed cylinder 10 drives the clamps 11 to move in opposite directions, and starts the linear motor 9 to drive the double-headed cylinder 10 to move to the right again without moving out of the supporting frame 4. Finally, start the hydraulic cylinder 3 to drive the supporting frame 4 to descend into the detection mechanism, so that the water in the detection mechanism submerges the battery pack shell, and the camera 8 detects the status in the detection mechanism in real time for a period of time, and transmits the data to the external central control device. After the test is completed, the hydraulic cylinder 3 is reset, and the linear motor 9 is started to drive the double-headed cylinder 10 to move to the battery pack shell, and starts the double-headed cylinder 10 to drive the front and rear clamps 11 to fix it, and move to the left to transport out of the supporting frame 4, so as to realize rapid pre-detection of the battery pack shell, so that large defects of the battery pack shell can be continuously detected, thereby improving the detection efficiency.

[0020] Among them, when the camera 8 detects continuous bubbles in the detection mechanism, the external central control device receives the data and displays it, so that the user can easily remove the battery pack shell with large defects and avoid the tediousness of subsequent detection.

[0021] In this embodiment, the detection mechanism includes a test pool 1, a support frame 2 is fixedly installed on the outside of the test pool 1, linear guide rails 7 are fixedly installed on the front and rear sides of the inner wall of the support frame 2, and conveyors 12 are fixedly installed on the lower ends of the left and right sides of the support frame 2. The top of the conveyor 12 is in the same horizontal plane as the top of the supporting mesh plate 6. The output end of the linear guide rail 7 is fixedly connected to the supporting frame 4, the hydraulic cylinder 3 is fixedly installed on the top of the support frame 2, and passes through and extends to the interior of the support frame 2. The back of the test pool 1 is fixed and connected with a sewage pipe.

[0022] It should be noted that the setting of the supporting mesh plate 6 can avoid excessive water stains remaining on the battery pack shell after inspection; the setting of the conveyor 12 enables the battery pack to cooperate with the linear motor 9 to achieve rapid loading and unloading of the battery pack shell; the setting of the linear guide rail 7 makes the supporting frame 4 more stable during movement.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An airtightness detection device for a battery pack, characterized in that: It comprises a detection mechanism, wherein an adjustment mechanism is arranged inside the detection mechanism; The adjustment mechanism comprises a hydraulic cylinder (3), the hydraulic cylinder (3) is fixedly mounted on the top of the detection mechanism, a support frame (4) is fixedly mounted on the output end of the hydraulic cylinder (3), extension plates (5) are fixedly mounted on the upper ends of the left and right sides of the support frame (4), a support mesh plate (6) is embedded in the inner bottom wall of the support frame (4), a camera (8) is fixedly mounted on the front side of the inner wall of the support frame (4), a linear motor (9) is fixedly mounted on the inner top wall of the support frame (4), the linear motor (9) extends to the bottom of the extension plate (5) and is fixedly connected to the extension plate (5), a double-headed cylinder (10) is fixedly mounted on the bottom of the linear motor (9), and a clamping plate (11) is fixedly mounted on the output end of the double-headed cylinder (10).

2. The air tightness detection device for a battery pack according to claim 1, characterized in that: The detection mechanism comprises a test pool (1), a support frame (2) is fixedly mounted on the outside of the test pool (1), linear guide rails (7) are fixedly mounted on both the front and rear sides of the inner wall of the support frame (2), and conveyors (12) are fixedly mounted on the lower ends of both the left and right sides of the support frame (2).

3. The air tightness detection device for a battery pack according to claim 2, characterized in that: The top of the conveyor (12) and the top of the bearing mesh plate (6) are in the same horizontal plane, and the output end of the linear guide rail (7) is fixedly connected to the bearing frame (4).

4. The air tightness detection device for a battery pack according to claim 2, characterized in that: The hydraulic cylinder (3) is fixedly mounted on the top of the support frame (2), and penetrates and extends into the interior of the support frame (2); the back of the test pool (1) is fixed and connected to a sewage pipe.

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