Detection system for plastic shell of storage battery

Abstract

The invention discloses a detection system for a plastic shell of a storage battery, and belongs to the technical field of battery plastic shell detection, and the detection system comprises a placement frame, the interior of the placement frame is used for placing the plastic shell of the storage battery, the upper end of the placement frame is provided with impact equipment, the interior of the placement frame is provided with a plurality of detection assemblies, and the inner wall of the placement frame is provided with a plurality of moving grooves. The detection assembly comprises a moving rod slidably installed in the moving groove, a baffle is fixedly installed at the end, away from the moving groove, of the moving rod, a compression spring is fixedly installed at the end, located in the moving groove, of the moving rod, and electronic rulers are fixedly installed at the positions, corresponding to the moving rod, of the inner wall of the placement frame. According to the storage battery plastic shell detection device, the storage battery plastic shell can be automatically detected through the arranged detection assembly, the deformation degree and the recovery degree of the storage battery plastic shell after the storage battery plastic shell is impacted are judged, and therefore whether the storage battery plastic shell is damaged or not and whether the storage battery plastic shell meets the standard or not are judged.

Description

Technical Field

[0001] The present invention relates to the technical field of battery plastic shell detection, and more particularly to a detection system for a battery plastic shell. Background Art

[0002] The battery plastic casing is a crucial component of the battery, protecting the internal components, preventing leakage, and dissipating heat. Different battery types (lead-acid, lithium-ion, etc.) have slightly different requirements for the casing.

[0003] After the production of battery plastic shells, their strength and rigidity need to be tested. The battery plastic shells are required to have certain impact resistance and pressure resistance to protect the batteries inside them from damage. Traditional testing equipment is not convenient for detecting the deformation and recovery of battery plastic shells. It can only determine whether the battery plastic shells are damaged, and the detection effect is poor. In view of this, the present invention provides a battery plastic shell detection system. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention aims to provide a detection system for the plastic shell of a battery.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A detection system for a battery plastic shell includes a placement frame, wherein the placement frame is used to place the battery plastic shell, and an impact device is installed on the upper end of the placement frame, wherein the impact device impacts the battery plastic shell; A plurality of detection components are installed inside the placement frame, and the detection components support and position the outer wall of the plastic shell. The inner wall of the placement frame is provided with a plurality of movable grooves. The detection components include a movable rod slidably installed inside the movable groove. A baffle is fixedly installed on one end of the movable rod away from the movable groove. The baffle contacts the plastic shell of the battery. A compression spring is fixedly installed on one end of the movable rod located inside the movable groove. An electronic ruler is fixedly installed at positions corresponding to the inner wall of the placement frame and the moving rod, and an end of the electronic ruler is fixedly connected to one side of the moving rod located inside the moving groove.

[0007] Furthermore, a plurality of movable grooves are formed at the lower end of the movable rod, and a plurality of limiting rods for limiting are slidably installed in the movable groove, and the lower end of the limiting rod close to the movable groove is in an inclined structure.

[0008] Furthermore, a tension spring is fixedly installed on the upper end of the limit rod, and the upper end of the tension spring is fixedly connected to the upper end of the inner wall of the movable groove, and the tension spring squeezes the limit rod.

[0009] Furthermore, a ventilation groove is provided inside the movable rod, and the ventilation groove is connected to the interior of multiple movable grooves. A piston groove is provided on the side of the movable rod away from the movable groove. A piston plate is slidably installed inside the piston groove, and the piston plate squeezes the air inside the piston groove. A push rod is fixedly installed on the end of the piston plate away from the movable groove, and the push rod squeezes the outer wall of the battery plastic shell.

[0010] Furthermore, a card slot is provided at the position corresponding to the limit rod at the lower end of the movable slot, and a card block is slidably installed inside the card slot. The upper end of the card block is away from the compression spring and has an inclined structure, and the inclined part on the card block is in compression contact with the inclined part on the limit rod. A support spring is fixedly installed at the lower end of the card block, and the support spring squeezes the card block.

[0011] Furthermore, a plurality of image acquisition modules are installed inside the placement frame, and the image acquisition modules capture images of the outer wall of the battery plastic shell, and image acquisition modules are installed on the upper side and the lower side of each moving rod.

[0012] Furthermore, a data processing module is installed on the outer wall of the placement frame. The image acquisition module transmits the collected image information to the data processing module, trains a target detection model (Faster R-CNN, YOLOv5, SSD) to identify cracks in the image, and uses the target detection model to compare the image with an existing complete image of the battery plastic shell to determine whether there are cracks on the surface of the battery plastic shell after the impact.

[0013] Furthermore, a calculation module is fixedly installed on the outer wall of the placement frame, and the electronic ruler transmits the collected data to the calculation module, and the calculation module calculates the deformation and recovery of the battery plastic shell; An evaluation module and an alarm module are fixedly installed on the outer wall of the placement frame. The calculation module transmits the calculated data to the evaluation module, and the evaluation module evaluates the integrity of the battery plastic shell. When the battery plastic shell is evaluated as unqualified, a signal is transmitted to the alarm module, and an alarm is issued through the alarm module. The data processing module transmits the processed data to the evaluation module. When cracks are detected on the battery plastic shell, the battery plastic shell is determined to be an unqualified product, and a signal is transmitted to the alarm module, and an alarm is issued through the alarm module.

[0014] Furthermore, the calculation module calculates the maximum deformation degree of the battery plastic shell using the following formula: ; Among them, when is the maximum deformation degree of the battery plastic shell, This is the value when the electronic ruler is stretched to its longest length when the battery plastic shell is impacted. The value on the electronic ruler when the battery plastic shell is placed inside the placement frame and the rear baffle is in contact with the outer wall of the battery plastic shell; The calculation module calculates the recovery degree of the battery plastic shell after impact using the following formula: ; in, The recovery degree of the battery plastic shell after being impacted. The value of the electronic ruler when the battery plastic shell no longer deforms after being impacted is stable. It is the value on the electronic ruler when the battery plastic shell is placed inside the placement frame and the rear baffle is in contact with the outer wall of the battery plastic shell.

[0015] Furthermore, the evaluation module determines whether the battery plastic housing is damaged based on the calculation module; when When the value is greater than the specified standard data, it means that the battery plastic shell is damaged, thus controlling the alarm module to sound an alarm; when When the value is less than the specified standard data, it means that the battery plastic shell is not damaged and the alarm module will not be controlled to alarm. when When the value is less than the specified standard data, it means that the battery plastic shell is damaged, thereby controlling the alarm module to sound an alarm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can automatically detect the battery plastic shell through the detection component, determine its deformation and recovery after impact, and thus determine whether the battery plastic shell is damaged and whether the battery plastic shell meets the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the placement frame of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A; Figure 4 This is a partial structural diagram of the electronic ruler of the present invention; Figure 5 This is a schematic diagram of the internal structure of the mobile rod of the present invention; Figure 6 It is a partial framework diagram of the system of the present invention; Figure 7It is the workflow diagram of the present invention.

[0018] Description of the numbers in the figure: 1. Placement frame; 101. Moving slot; 102. Electronic ruler; 103. Card slot; 104. Card block; 105. Support spring; 106. Image acquisition module; 107. Data processing module; 108. Calculation module; 109. Evaluation module; 110. Alarm module; 2. Impact equipment; 3. Detection assembly; 301. Moving rod; 302. Baffle; 303. Compression spring; 304. Movable groove; 305. Limit rod; 306. Tension spring; 307. Ventilation groove; 308. Piston groove; 309. Piston plate; 310. Push rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 7 A battery plastic shell detection system includes a placement frame 1, the placement frame 1 is used to place the battery plastic shell, and an impact device 2 is installed on the upper end of the placement frame 1 to impact the battery plastic shell; A plurality of detection components 3 are installed inside the placement frame 1. The detection components 3 support and position the outer wall of the plastic shell. A plurality of movable grooves 101 are opened on the inner wall of the placement frame 1. The detection components 3 include a movable rod 301 slidably installed inside the movable groove 101. A baffle 302 is fixedly installed on the end of the movable rod 301 away from the movable groove 101. The baffle 302 contacts the plastic shell of the battery. A compression spring 303 is fixedly installed on the end of the movable rod 301 located inside the movable groove 101. An electronic ruler 102 is fixedly installed at positions corresponding to the inner wall of the placement frame 1 and the moving rod 301 , and an end of the electronic ruler 102 is fixedly connected to one side of the moving rod 301 located inside the moving groove 101 .

[0021] By adopting the above technical solution, after the battery plastic shell is placed inside the placement frame 1, the impact device 2 is used to impact the battery plastic shell, causing the battery plastic shell to deform. At this time, after the battery plastic shell is deformed, its outer wall can squeeze the baffle 302 and the movable rod 301, causing the movable rod 301 to move. After the movable rod 301 moves, it can pull the end of the electronic ruler 102, causing the electronic ruler 102 to extend. At this time, the scale on the electronic ruler 102 will change, and the electronic ruler 102 can record the deformation degree of the battery plastic shell.

[0022] The lower end of the movable rod 301 is provided with a plurality of movable grooves 304, and the movable groove 304 is slidably mounted with a plurality of limiting rods 305 for limiting position. The lower end of the limiting rod 305 close to the movable groove 101 is in an inclined structure; A tension spring 306 is fixedly mounted on the upper end of the limiting rod 305 , and the upper end of the tension spring 306 is fixedly connected to the upper end of the inner wall of the movable groove 304 , and the tension spring 306 squeezes the limiting rod 305 ; A ventilation groove 307 is provided inside the movable rod 301, and the ventilation groove 307 is connected to the interior of the multiple movable grooves 304. A piston groove 308 is provided on the side of the movable rod 301 away from the movable groove 101. A piston plate 309 is slidably installed inside the piston groove 308. The piston plate 309 squeezes the air inside the piston groove 308. A push rod 310 is fixedly installed on the end of the piston plate 309 away from the movable groove 101. The push rod 310 squeezes the outer wall of the battery plastic shell; A card slot 103 is provided at the position corresponding to the lower end of the movable slot 101 and the limiting rod 305, and a card block 104 is slidably installed inside the card slot 103. The upper end of the card block 104 is away from the compression spring 303 and has an inclined structure. The inclined part of the card block 104 is in contact with the inclined part of the limiting rod 305. A support spring 105 is fixedly installed at the lower end of the card block 104, and the support spring 105 squeezes the card block 104.

[0023] By adopting the above technical solution, when the baffle 302 is squeezed, it will drive the moving rod 301 to move, and then the moving rod 301 can squeeze the compression spring 303, so that the compression spring 303 is deformed. When the impact is over, the compression spring 303 can squeeze the moving rod 301 so that the moving rod 301 moves to the initial position. When the moving rod 301 moves, it will drive the limiting rod 305 to move. At this time, the limiting rod 305 will be blocked by the block 104. When the battery plastic shell continues to rebound under its own toughness, the tension spring 306 can pull the limiting rod 305 up. After the limiting rod 305 rises, it can be separated from the block 104. At this time, the limiting rod 305 will no longer be blocked by the block 104, and then the moving rod 301 can move. The limit rod 305 is driven to pass through the upper side of the block 104, and when the mobile rod 301 moves, the push rod 310 can be driven to move. After the push rod 310 moves, it will be blocked by the battery plastic shell. At this time, the push rod 310 will move relative to the mobile rod 301 again. At this time, the push rod 310 can drive the piston plate 309 to move. The movement of the piston plate 309 can squeeze the air inside the piston groove 308, thereby allowing the air to enter the movable groove 304. At this time, the limit rod 305 will drop again and be blocked by the block 104. When the battery plastic shell no longer rebounds, the push rod 310 cannot move relative to the limit rod 305, so that the limit rod 305 cannot rise under the action of the tension spring 306, thereby fixing the mobile rod 301.

[0024] A plurality of image acquisition modules 106 are installed inside the placement frame 1. The image acquisition modules 106 capture images of the outer wall of the battery plastic shell, and an image acquisition module 106 is installed on the upper and lower sides of each moving rod 301; A data processing module 107 is mounted on the outer wall of the placement frame 1. The image acquisition module 106 transmits the collected image information to the data processing module 107. A target detection model (Faster R-CNN, YOLOv5, SSD) is trained to identify cracks in the image. The data processing module 107 uses the target detection model to compare the image with an existing image of the complete battery plastic casing to determine whether there are cracks on the surface of the battery plastic casing after the impact. A calculation module 108 is fixedly installed on the outer wall of the placement frame 1. The electronic ruler 102 transmits the collected data to the calculation module 108, and the calculation module 108 calculates the deformation and recovery of the battery plastic shell; An evaluation module 109 and an alarm module 110 are fixedly installed on the outer wall of the placement frame 1. The calculation module 108 transmits the calculated data to the evaluation module 109, and the evaluation module 109 evaluates the integrity of the battery plastic shell. When the battery plastic shell is evaluated as unqualified, a signal is transmitted to the alarm module 110, and an alarm is issued by the alarm module 110. The data processing module 107 transmits the processed data to the evaluation module 109. When cracks are detected on the battery plastic shell, the battery plastic shell is determined to be an unqualified product, and a signal is transmitted to the alarm module 110, and an alarm is issued by the alarm module 110. The calculation module 108 calculates the maximum deformation degree of the battery plastic shell using the following formula: ; in, is the maximum deformation degree of the battery plastic shell, is the value when the electronic ruler 102 is stretched to its longest length when the battery plastic shell is impacted. The value on the electronic ruler 102 when the battery plastic shell is placed in the placement frame 1 and the rear baffle 302 is in contact with the outer wall of the battery plastic shell; The calculation module 108 calculates the recovery degree of the battery plastic shell after being impacted using the following formula: ; in, The recovery degree of the battery plastic shell after being impacted. The value of the electronic ruler 102 is stable when the battery plastic shell no longer deforms after being impacted. The value on the electronic ruler 102 when the battery plastic shell is placed in the placement frame 1 and the rear baffle 302 is in contact with the outer wall of the battery plastic shell; The evaluation module 109 determines whether the battery plastic shell is damaged according to the calculation module 108; when When the value is greater than the specified standard data, it indicates that the plastic shell of the battery is damaged, thereby controlling the alarm module 110 to sound an alarm; when When the value is less than the specified standard data, it means that the plastic shell of the battery is not damaged, and the alarm module 110 will not be controlled to alarm; when When the value is less than the specified standard data, it indicates that the plastic shell of the battery is damaged, thereby controlling the alarm module 110 to sound an alarm.

[0025] The above are only preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A detection system for a plastic shell of a battery, comprising a placement frame (1), characterized in that: The placement frame (1) is used to place a plastic shell of a battery inside, and an impact device (2) is installed on the upper end of the placement frame (1), and the impact device (2) impacts the plastic shell of the battery; A plurality of detection components (3) are installed inside the placement frame (1), and the detection components (3) support and position the outer wall of the plastic shell. The inner wall of the placement frame (1) is provided with a plurality of movable grooves (101). The detection components (3) include a movable rod (301) slidably installed inside the movable groove (101), and a baffle (302) is fixedly installed at one end of the movable rod (301) away from the movable groove (101), and the baffle (302) contacts the plastic shell of the storage battery. A compression spring (303) is fixedly installed at one end of the movable rod (301) located inside the movable groove (101); An electronic ruler (102) is fixedly mounted at positions corresponding to the inner wall of the placement frame (1) and the moving rod (301), and an end of the electronic ruler (102) is fixedly connected to a side of the moving rod (301) located inside the moving groove (101).

2. A battery plastic shell detection system according to claim 1, characterized in that: A plurality of movable grooves (304) are formed at the lower end of the movable rod (301), and a plurality of limiting rods (305) for limiting positions are slidably mounted on the movable groove (304). The lower end of the limiting rod (305) on one side close to the movable groove (101) is in an inclined structure.

3. A battery plastic shell detection system according to claim 2, characterized in that: A tension spring (306) is fixedly mounted on the upper end of the limiting rod (305), and the upper end of the tension spring (306) is fixedly connected to the upper end of the inner wall of the movable groove (304), so that the tension spring (306) presses the limiting rod (305).

4. A battery plastic shell detection system according to claim 3, characterized in that: A vent groove (307) is provided inside the movable rod (301), and the vent groove (307) is connected to the inside of the plurality of movable grooves (304). A piston groove (308) is provided inside the movable rod (301) on a side away from the movable groove (101). A piston plate (309) is slidably mounted inside the piston groove (308), and the piston plate (309) squeezes the air inside the piston groove (308). A push rod (310) is fixedly mounted on one end of the piston plate (309) away from the movable groove (101), and the push rod (310) squeezes the outer wall of the plastic shell of the storage battery.

5. A battery plastic shell detection system according to claim 4, characterized in that: A clamping groove (103) is provided at a position corresponding to the limit rod (305) at the lower end of the movable groove (101), and a clamping block (104) is slidably mounted inside the clamping groove (103). The upper end of the clamping block (104) on a side away from the compression spring (303) is in an inclined structure, and the inclined portion of the clamping block (104) is in compression contact with the inclined portion of the limit rod (305). A support spring (105) is fixedly mounted at the lower end of the clamping block (104), and the support spring (105) compresses the clamping block (104).

6. A battery plastic shell detection system according to claim 5, characterized in that: A plurality of image acquisition modules (106) are installed inside the placement frame (1), and the image acquisition modules (106) acquire images of the outer wall of the plastic shell of the storage battery. The upper side and the lower side of each moving rod (301) are both installed with an image acquisition module (106).

7. A battery plastic shell detection system according to claim 6, characterized in that: The outer wall of the placement frame (1) is installed with a data processing module (107). The image acquisition module (106) transmits the acquired image information to the data processing module (107). A target detection model (Faster R-CNN, YOLOv5, SSD) is trained to identify cracks on the image. The data processing module (107) compares the image with an existing complete battery plastic shell image through the target detection model to determine whether there are cracks on the surface of the battery plastic shell after impact.

8. A battery plastic shell detection system according to claim 7, characterized in that: A calculation module (108) is fixedly mounted on the outer wall of the placement frame (1), the electronic ruler (102) transmits the collected data to the calculation module (108), and the calculation module (108) calculates the deformation degree and recovery degree of the battery plastic shell; An evaluation module (109) and an alarm module (110) are fixedly mounted on the outer wall of the placement frame (1); the calculation module (108) transmits calculated data to the evaluation module (109); the evaluation module (109) evaluates the integrity of the battery plastic shell; when the battery plastic shell is evaluated as unqualified, a signal is transmitted to the alarm module (110), and an alarm is issued through the alarm module (110); the data processing module (107) transmits processed data to the evaluation module (109); when cracks are detected on the battery plastic shell, the battery plastic shell is determined to be an unqualified product, and a signal is transmitted to the alarm module (110), and an alarm is issued through the alarm module (110).

9. A battery plastic shell detection system according to claim 8, characterized in that: The calculation module (108) calculates the maximum deformation degree of the battery plastic shell by using the following formula: ； in, is the maximum deformation degree of the battery plastic shell, is the value of the electronic ruler (102) when the plastic shell of the battery is stretched to its longest length when it is impacted. The value on the electronic ruler (102) when the battery plastic shell is placed in the placement frame (1) and the inner rear baffle (302) is in contact with the outer wall of the battery plastic shell; The calculation module (108) calculates the degree of recovery of the battery plastic shell after being impacted by the following formula: ； in, It is the recovery degree of the battery plastic shell after being impacted. The value of the electronic ruler (102) when the plastic shell of the battery no longer deforms after being impacted is stable. It is the value on the electronic ruler (102) when the battery plastic shell is placed in the placement frame (1) and the inner rear baffle (302) is in contact with the outer wall of the battery plastic shell.

10. A battery plastic shell detection system according to claim 9, characterized in that: The evaluation module (109) determines whether the plastic housing of the battery is damaged according to the calculation module (108); when When it is greater than the specified standard data, it indicates that the plastic shell of the battery is damaged, thereby controlling the alarm module (110) to sound an alarm; when When the value is less than the specified standard data, it means that the plastic shell of the battery is not damaged, and the alarm module (110) will not be controlled to alarm; when When it is less than the specified standard data, it means that the plastic shell of the battery is damaged, so the alarm module (110) is controlled to alarm.

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