A battery detection device

Abstract

The present application relates to the field of lithium battery testing device, especially to a battery detection device, containing rack, the rack is provided with a conveyor belt, the conveyor belt is driven to rotate by a transmission motor, the rack above the conveyor belt is fixed with a top plate, the bottom of the top plate is provided with a support block, a plurality of support rods are fixed on the support block, the support rods pass through the top plate and are slidably connected with the top plate, support springs are further fixed between the top plate and the support block, support rollers are further arranged on the bottom of the support block, a fixed plate is fixed on the rack on one side above the conveyor belt, a positioning plate is arranged on one side of the fixed plate, positioning rods are fixed on the positioning plate, the positioning rods pass through the fixed plate and are slidably connected with the fixed plate, positioning springs are further fixed between the fixed plate and the positioning plate, positioning blocks are fixed on the ends of the positioning rods, and limit plates are further arranged on one side of the positioning plate. The device can detect whether the thickness and height direction of the battery are bulging at the same time.

Description

Technical Field

[0001] This invention relates to the field of lithium battery testing devices, and more particularly to a battery testing device. Background Technology

[0002] With the development of science and technology, various electronic devices are becoming smaller and more portable. Lithium batteries, as a portable energy storage device, are naturally used in various electronic products. However, when using lithium batteries, a bulging test is required at the factory to prevent damaged lithium batteries from entering the market and causing unnecessary accidents.

[0003] Patent application number CN202320050725.6 discloses a battery bulge detection device. It includes a frame with a fixed bracket at one end. A battery support is mounted on the fixed bracket. A linear servo module extending to the battery support is also mounted on the frame. A support bracket is mounted on the linear servo module, and an elastic guide component is mounted on the support bracket. One end of the elastic guide component is connected to a test plate, which has a vertical test surface facing the battery support. In practical testing, knowing the standard thickness of the battery to be tested (i.e., the thickness of a battery of that specification without bulge) allows for the preset movement distance of the support bracket based on the standard thickness, thus determining the target position of the support bracket. Data from a displacement sensor after the support bracket reaches the target position can then be used to determine whether the battery has the standard thickness or exhibits a bulge. However, this type of detection device can only detect the battery thickness; it cannot detect bulges at a height.

[0004] This invention was developed to address the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery testing device.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses a battery testing device, comprising a frame, a conveyor belt mounted on the frame and driven to rotate by a conveyor motor, a top plate fixed above the conveyor belt, a support block below the top plate, multiple support rods fixed on the support block, the support rods passing through the top plate and slidably connected to it, a support spring fixed between the top plate and the support block, and support rollers at the bottom of the support block. A fixing plate is fixed on one side of the frame above the conveyor belt, and a positioning plate is fixed on one side of the fixing plate. A positioning rod is provided, which passes through a fixed plate and is slidably connected to the fixed plate. A positioning spring is also fixed between the fixed plate and the positioning plate. A positioning block is fixed to the end of the positioning rod. A limit plate is also provided on one side of the positioning plate. Multiple limit rods are fixed on the limit plate. The limit rods pass through the positioning plate and are slidably connected to the positioning plate. A limit block is fixed to the end of the limit rod. A limit spring is fixed between the limit block and the positioning plate. A positioning nut that is threadedly connected to the positioning rod is also provided on the positioning rod. Positioning rollers are provided on both the positioning plate and the limit plate. The battery to be tested is placed on a conveyor belt, which is driven by a motor. The battery moves with the conveyor belt until it reaches the support roller. Since the initial distance between the bottom of the support roller and the conveyor belt is equal to the height of the battery, when the battery bulges in the height direction, it contacts the support roller and pushes the support rod upward. The upward movement of the support rod confirms whether the battery bulges in the height direction. After the height direction of the battery is detected, the battery continues to move to the positioning roller. Since the distance between two adjacent positioning rollers is equal to the thickness of the battery, when the battery passes between the two positioning rollers, if the battery bulges in the thickness direction, it pushes the positioning roller on the limit plate to move, thus confirming whether the battery bulges. This device can simultaneously detect whether the battery bulges in both the thickness and height directions.

[0008] Preferably, the support rod above the top plate is further provided with a support nut that is threadedly connected to the support rod. The height of the support roller can be adjusted by adjusting the position of the support nut, so that the distance from the bottom of the support roller to the conveyor belt is consistent with the height of the battery.

[0009] Preferably, a test plate is fixed on a frame on the other side above the conveyor belt. A cylinder is also fixed on the fixed plate, and a fixing block is fixed to the end of the piston rod of the cylinder. Multiple fixing rollers are fixed on the fixing block. When the battery reaches the position of the fixing rollers, the cylinder is activated, the piston rod on the cylinder extends, and the fixing rollers push the battery against the test plate. One end of the battery moves against the test plate to achieve battery positioning.

[0010] Preferably, displacement sensors are fixed to both the limiting rod and the support rod. The displacement sensors are used to confirm whether the limiting rod and the support rod have moved.

[0011] Compared with existing technologies, the present invention has the following advantages:

[0012] This device can simultaneously detect whether the battery is bulging in both the thickness and height directions. Attached Figure Description

[0013] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] In the diagram: 1. Conveyor belt; 2. Conveyor motor; 3. Test plate; 4. Fixing plate; 5. Cylinder; 6. Fixing block; 7. Fixing roller; 8. Top plate; 9. Support block; 10. Support rod; 11. Support spring; 12. Support nut; 13. Support roller; 14. Positioning rod; 15. Positioning spring; 16. Positioning block; 17. Limiting plate; 18. Limiting rod; 19. Positioning roller; 20. Positioning nut; 21. Limiting block; 22. Limiting spring; 23. Frame; 24. Positioning plate; Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0018] Example 1:

[0019] like Figures 1 to 2As shown, this embodiment discloses a battery testing device, including a frame 23. A conveyor belt 1 is mounted on the frame 23 and driven to rotate by a conveyor motor 2. A top plate 8 is fixed on the frame 23 above the conveyor belt 1. A support block 9 is mounted below the top plate 8, and multiple support rods 10 are fixed on the support block 9. The support rods 10 pass through the top plate 8 and are slidably connected to the top plate 8. A support spring 11 is also fixed between the top plate 8 and the support block 9. A support roller 13 is also mounted at the bottom of the support block 9. A fixing plate 4 is fixed on one side of the frame 23 above the conveyor belt 1. A positioning plate 24 is mounted on one side of the fixing plate 4, and a positioning rod 1 is fixed on the positioning plate 24. 4. The positioning rod 14 passes through the fixed plate 4 and is slidably connected to the fixed plate 4. A positioning spring 15 is also fixed between the fixed plate 4 and the positioning plate 24. A positioning block 16 is fixed to the end of the positioning rod 14. A limit plate 17 is also provided on one side of the positioning plate 24. Multiple limit rods 18 are fixed on the limit plate 17. The limit rods 18 pass through the positioning plate 24 and are slidably connected to the positioning plate 24. A limit block 21 is fixed to the end of the limit rod 18. A limit spring 22 is fixed between the limit block 21 and the positioning plate 24. A positioning nut 20 is also provided on the positioning rod 14 and is threadedly connected to the positioning rod 14. Positioning rollers 19 are provided on both the positioning plate 24 and the limit plate 17. The battery to be tested is placed on conveyor belt 1, and the conveyor belt 1 is driven to rotate by the conveyor motor 2. The battery moves with the conveyor belt 1 and reaches the support roller 13. Since the initial distance between the bottom of the support roller 13 and the conveyor belt 1 is equal to the height of the battery, when the height direction bulges, the battery contacts the support roller 13 and pushes the support rod 10 to rise. The rise of the support rod 10 confirms whether the battery bulges in the height direction. After the height direction of the battery is detected, the battery continues to move to the positioning roller 19. Since the distance between two adjacent positioning rollers 19 is equal to the thickness of the battery, when the battery passes between the two positioning rollers 19, if the thickness direction of the battery bulges, the battery pushes the positioning roller 19 on the limit plate 17 to move, which can confirm whether the battery bulges. This device can detect whether the battery bulges in the thickness and height directions at the same time.

[0020] The support rod 10 above the top plate 8 is also equipped with a support nut 12 that is threadedly connected to the support rod 10. The height of the support roller 13 can be adjusted by adjusting the position of the support nut 12, so that the distance from the bottom of the support roller 13 to the conveyor belt 1 is consistent with the height of the battery.

[0021] Displacement sensors are fixed to both the limiting rod 18 and the support rod 10. The displacement sensors are used to confirm whether the limiting rod 18 and the support rod 10 have moved.

[0022] Example 2:

[0023] This embodiment discloses a battery testing device. Based on the structure and principle of Embodiment 1, a test plate 3 is fixed on a frame 23 on the other side above the conveyor belt 1 in this embodiment. A cylinder 5 is also fixed on the fixed plate 4. A fixing block 6 is fixed to the end of the piston rod of the cylinder 5, and multiple fixing rollers 7 are fixed on the fixing block 6. When the battery reaches the position of the fixing rollers 7, the cylinder 5 is activated, the piston rod of the cylinder 5 extends, and the fixing rollers 7 push the battery against the test plate 3. The battery is positioned by moving one end against the test plate 3.

[0024] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A battery testing device, comprising a frame, characterized in that, A conveyor belt is installed on the frame and driven to rotate by a conveyor motor. A top plate is fixed on the frame above the conveyor belt, and a support block is installed below the top plate. Multiple support rods are fixed on the support block and pass through the top plate, slidingly connected to it. A support spring is also fixed between the top plate and the support block. A support roller is also installed at the bottom of the support block. A fixed plate is fixed on one side of the frame above the conveyor belt, and a positioning plate is installed on one side of the fixed plate. A positioning rod is fixed on the positioning plate and passes through the fixed plate, slidingly connected to it. A positioning spring is also fixed between the fixed plate and the positioning plate. A positioning block is fixed at the end of the positioning rod. A limit plate is also installed on one side of the positioning plate, and multiple limit rods are fixed on the limit plate. The limit rods pass through the positioning plate and slidingly connected to it. A limit block is fixed at the end of the limit rod. A limit spring is fixed between the limit block and the positioning plate. A positioning nut is also installed on the positioning rod and threadedly connected to it. Positioning rollers are installed on both the positioning plate and the limit plate.

2. The battery testing device according to claim 1, characterized in that, The support rod above the top plate is also equipped with a support nut that is threadedly connected to the support rod.

3. The battery testing device according to claim 1, characterized in that, A test plate is fixed on the frame on the other side above the conveyor belt. A cylinder is also fixed on the fixed plate. A fixing block is fixed to the end of the piston rod of the cylinder. A fixing roller is fixed on the fixing block.

4. The battery testing device according to claim 1, characterized in that, Displacement sensors are fixed on both the limiting rod and the support rod.

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