Battery box shell airtightness inspection platform convenient to observe
By combining water injection and gas detection with the design of an observation window and monitoring camera, the problem of electronic component errors in the airtightness detection of the battery box casing is solved, and more accurate airtightness judgment is achieved.
Patent Information
- Application Number
- CN202520501540.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In existing technologies, the pressure sensor used for testing the airtightness of the battery box housing is prone to errors or damage, affecting the accuracy of the test.
The structure adopts a non-electronic component design. By combining water injection and gas detection with an observation window and monitoring camera, the airtightness can be judged by observing the generation of bubbles in real time. The battery box is fixed with telescopic cylinders and clamping plates to prevent it from falling.
This results in more reliable airtightness testing, reduces errors in electronic components, and improves the accuracy and reliability of testing.
Smart Images

Figure CN223741870U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery box detection technical field, concretely is a battery box casing airtightness inspection platform of convenient observation. BACKGROUND
[0002] Battery box casing is an important component of finished battery module, and the battery module needs to be put into the battery box casing, and the battery box casing is used for protecting the battery module, so as to ensure normal use of the battery module, and in the process of battery box casing production, in order to ensure the protection effect, the airtightness of the battery box casing generally needs to be detected.
[0003] In the prior art, the Chinese patent with the application number CN202211381948.7 discloses a new energy battery box shell airtightness detection device, which comprises a base, a curved frame, a vertical plate and a control box; wherein the top four corners of the base are provided with supports, the top of the support is provided with a workbench, the bottom of the workbench is provided with a motor, the top of the workbench is provided with a rotary table, and the output end of the motor is connected with the rotary table through the workbench; the curved frame is arranged on one side of the top of the workbench, the top of the curved frame is provided with a top plate, the bottom of the top plate is provided with an electric telescopic rod, the bottom of the electric telescopic rod is provided with a pressing plate, the top middle of the pressing plate is provided with an air pump, the bottom of the pressing plate is provided with an air inlet, and the air inlet is connected with the air pump, and the bottom of the pressing plate is provided with a pressure sensor.
[0004] According to the above-mentioned material, it can be known that in the prior art, the airtightness of the battery box can be detected by the pressure sensor, but in the actual use process, the pressure sensor is an electronic element, which may have errors or be damaged during use, affecting the accuracy of detection. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a battery box casing airtightness inspection platform for convenient observation, so as to solve the problem of affecting the detection accuracy in the above background technology.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient observation battery box shell airtightness testing platform, comprising a support base placed horizontally on the ground, a testing box fixedly installed at the middle position of the upper surface of the support base, a water injection pipe fixedly installed on the left side of the testing box, an installation plate fixedly installed at the rear end of the upper surface of the support base, a placement platform provided on the front side of the installation plate, a telescopic cylinder fixedly installed on the outer surface of the front side of the installation plate, and the lower end of the telescopic cylinder fixedly connected to the placement platform, a battery box shell to be tested placed on the upper surface of the lower end of the placement platform, an air pump fixedly installed on the upper surface of the placement platform, and the air pump connected to the air inlet pipe of the battery box shell through a connecting hose, and an observation mechanism for real-time observation of the testing process and results provided on the front side of the testing box.
[0007] Preferably, the observation mechanism includes an observation window fixedly installed on the front surface of the detection box, and the observation window is made of transparent glass.
[0008] Preferably, a bent mounting bracket is fixedly installed on the outer surface of the left and right ends of the detection box, and a monitoring camera is fixedly installed at the front end of the mounting bracket.
[0009] Preferably, the position of the monitoring camera corresponds to the position of the observation window, and the monitoring camera is in recording mode.
[0010] Preferably, a cleaning brush for cleaning is fitted to the outer surface of the observation window, and a transmission screw is threaded through the cleaning brush, and the transmission screw is rotatably connected to the detection box.
[0011] Preferably, a drive motor is fixedly installed on the outer surface of the left side of the detection box, and the output shaft of the drive motor drives the transmission screw to rotate synchronously through a synchronous belt.
[0012] Preferably, a fixing plate is fixedly installed on the left and right sides of the upper surface of the lower end of the placement platform, and a clamping plate is correspondingly provided on the side of the fixing plate, and a compression spring is fixedly installed between the clamping plate and the fixing plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the convenient battery box shell airtightness testing platform adopts a novel structural design, the specific details of which are as follows:
[0014] 1. The placement platform, along with the battery box shell placed on top of it, is lowered into the testing chamber by the operation of the telescopic cylinder. Water is injected into the testing chamber through the water injection pipe until the water level covers the top of the battery box shell. Then, the air pump is turned on and air is injected into the battery box shell through the connecting hose. The presence of air bubbles is observed to determine whether there is a leak. This process does not require electronic components, and the test results are more reliable.
[0015] Further, when the battery box shell is placed above the placement table, the clamping plates are pushed by the elastic action of the extrusion springs, so that the clamping plates on the left and right sides cooperate to achieve the clamping effect on the battery box shell, and the battery box shell is prevented from falling.
[0016] 2. During detection, the monitoring camera can be used to take real-time monitoring process, so that the recording purpose is achieved, and the video image can be used for sampling inspection in the later period, so that the accuracy of the detection result is better ensured.
[0017] Further, the driving motor drives the transmission screw rod to rotate through the synchronous belt, so that the transmission screw rod drives the cleaning brush installed outside the transmission screw rod to move left and right, and the cleaning brush is used to clean the dirt on the surface of the observation window, so that the observation is not affected. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a whole structure schematic view of the utility model;
[0019] Figure 2 It is an internal structure schematic view of the detection box of the utility model;
[0020] Figure 3 It is the utility model Figure 2 It is an enlarged structure schematic view of position A;
[0021] Figure 4 It is a placement table structure schematic view of the utility model;
[0022] Figure 5 It is a transmission screw rod structure schematic view of the utility model;
[0023] Figure 6 It is a cleaning brush transmission relationship structure schematic view of the utility model.
[0024] In the drawing: 1, support base; 2, detection box; 201, water injection pipe; 3, mounting plate; 4, placement table; 5, telescopic cylinder; 6, battery box shell; 7, gas conveying pump; 8, connecting hose; 9, observation window; 10, mounting frame; 11, monitoring camera; 12, cleaning brush; 13, transmission screw rod; 14, driving motor; 15, synchronous belt; 16, fixed plate; 17, clamping plate; 18, extrusion spring. DETAILED DESCRIPTION
[0025] 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 in 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.
[0026] Embodiment one: please refer to Figures 1-4 , in order to achieve the purpose of detecting air tightness, the technical scheme is provided as follows, specifically discloses: horizontally placed on the ground support base 1, the upper surface of support base 1 middle position fixed installation has detection box 2, and the left side of detection box 2 fixed installation has water injection pipe 201, the upper surface of support base 1 rear end fixed installation has mounting plate 3, and the front side of mounting plate 3 is provided with placing table 4, and the outer surface of mounting plate 3 front side is fixedly installed with telescopic pneumatic cylinder 5, and the lower end of telescopic pneumatic cylinder 5 is fixedly connected with placing table 4, and the lower end of placing table 4 upper surface is placed with the battery box shell 6 that needs to be detected, and the upper surface of placing table 4 upper end is fixedly installed with gas delivery pump 7, and gas delivery pump 7 is connected with the air inlet pipe of battery box shell 6 through connecting hose 8, the front side of detection box 2 is provided with observation mechanism for observing the detection process and result in real time, the observation mechanism comprises observation window 9 fixedly installed on the front side of detection box 2, and the observation window 9 is transparent glass material, the outer surface of both ends of detection box 2 is fixedly installed with mounting bracket 10 in the form of bending structure, and the front end of mounting bracket 10 is fixedly installed with monitoring camera 11, the position of monitoring camera 11 corresponds to the position of observation window 9, and monitoring camera 11 is in video recording mode.
[0027] In use, first, the battery box shell 6 that needs to be detected is placed on the upper surface of the lower end of the placing table 4, at this time, the squeezing spring 18 is squeezed to push the left and right clamping plates 17 to move to the middle under the cooperation of the support of the fixed plate 16, so as to clamp and fix the battery box shell 6 by the clamping plate 17, then the telescopic pneumatic cylinder 5 is started, and the placing table 4 is put into the detection box 2 together with the battery box shell 6 (the detection box 2 is previously injected with water enough to cover the battery box shell 6 by the water injection pipe 201), then the gas delivery pump 7 is started, and the air is delivered into the battery box shell 6 by the connecting hose 8, at this time, whether there is air bubble is observed through the observation window 9 to judge the air tightness, and the monitoring camera 11 is started at the same time, and the video of the detection process is shot by the monitoring camera 11 for subsequent sampling inspection.
[0028] Embodiment two: please refer to Figures 5-6 , in order to achieve the purpose of cleaning the observation window 9, the technical scheme is provided as follows, specifically discloses: the outer surface of observation window 9 is attached with cleaning brush 12 for cleaning, and transmission screw rod 13 is screwed through the inside of cleaning brush 12, and transmission screw rod 13 is rotatably connected between detection box 2, detection box 2 left side outer surface fixedly installed with driving motor 14, and the output shaft of driving motor 14 drives transmission screw rod 13 to rotate synchronously through synchronous belt 15, the lower end of placing table 4 upper surface is fixedly installed with fixed plate 16 on both sides, and the side of fixed plate 16 is provided with clamping plate 17 correspondingly, and the squeezing spring 18 is fixedly installed between clamping plate 17 and fixed plate 16.
[0029] Periodically start the driving motor 14, utilize the driving motor 14 to drive the transmission screw rod 13 to rotate through the synchronous belt 15, drive the cleaning brush 12 outside through thread installation to move left and right through the rotation of the transmission screw rod 13, thereby utilizing the cleaning brush 12 to clean the outer surface of the observation window 9, thereby avoiding the observation window 9 outer surface to be contaminated with dirt and affect the observation effect.
[0030] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.
[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A battery box shell airtight inspection platform convenient to observe, comprising a support base (1) horizontally placed on the ground, a detection box (2) is fixedly installed on the middle position of the upper surface of the support base (1), and a water injection pipe (201) is fixedly installed on the left side of the detection box (2), characterized in that: an installation plate (3) is fixedly installed on the rear end of the upper surface of the support base (1), a placement table (4) is arranged on the front side of the installation plate (3), an extension air cylinder (5) is fixedly installed on the outer surface of the front side of the installation plate (3), and the lower end of the extension air cylinder (5) is fixedly connected with the placement table (4); a battery box shell (6) to be detected is placed on the upper surface of the lower end of the placement table (4), a gas conveying pump (7) is fixedly installed on the upper surface of the upper end of the placement table (4), and the gas conveying pump (7) is connected with the air inlet pipe of the battery box shell (6) through a connecting hose (8); an observation mechanism for observing the detection process and result in real time is arranged on the front side of the detection box (2).
2. A hermetic test platform for battery case convenient observation according to claim 1, characterized in that: The observation mechanism comprises an observation window (9) fixedly installed on the front side surface of the detection box (2), and the observation window (9) is made of transparent glass.
3. A hermetic test platform for battery case convenient observation according to claim 2, characterized in that: Bent installation racks (10) are fixedly installed on the outer surfaces of the left and right ends of the detection box (2), and monitoring cameras (11) are fixedly installed on the front ends of the installation racks (10).
4. A hermetic test platform for battery case convenient observation according to claim 3, characterized in that: The positions of the monitoring cameras (11) correspond to the positions of the observation windows (9), and the monitoring cameras (11) are in video recording mode.
5. A hermetic test platform for battery case convenient observation according to claim 4, characterized in that: Cleaning brushes (12) are attached to the outer side surfaces of the observation windows (9) for cleaning, transmission lead screws (13) are screwed through the cleaning brushes (12), and the transmission lead screws (13) are rotatably connected with the detection box (2).
6. A hermetic test platform for battery case convenient observation according to claim 5, characterized in that: Driving motors (14) are fixedly installed on the left side outer surfaces of the detection box (2), and the output shafts of the driving motors (14) drive the transmission lead screws (13) to rotate synchronously through synchronous belts (15).
7. A hermetic inspection platform for battery case convenient observation according to claim 1, characterized in that: Fixed plates (16) are fixedly installed on the left and right sides of the upper surface of the lower end of the placement table (4), clamping plates (17) are arranged on the sides of the fixed plates (16), and extrusion springs (18) are fixedly installed between the clamping plates (17) and the fixed plates (16).
Citation Information
Patent Citations
New energy battery box shell air tightness detection device
CN115901133A