A device for detecting over-discharge expansion and deformation of waste lithium batteries for secondary utilization

Abstract

This utility model discloses a device for detecting over-discharge expansion and deformation during the cascade utilization of waste lithium batteries, belonging to the technical field of waste lithium battery cascade utilization testing equipment. It includes a waste lithium battery pack, with terminals inserted into the ends of the battery pack. Discharge wires are connected to the terminals. The over-discharge expansion and deformation detection device includes an L-shaped support plate, with a control box connected to the lower end of the L-shaped support plate. The vertical section of the L-shaped support plate is mounted to a frame using wall bolts. The control box has a display screen, control panel, and wiring terminals. The wiring terminals are connected to the terminals of an upper and lower detection plate via wiring. The upper and lower detection plates have L-shaped cross-sections. This deformation detection device can automatically detect the deformation of waste lithium batteries during over-discharge and generate detection data, which is remotely transmitted to the testing personnel. It offers good testing safety, reduces the workload of testing personnel, and provides accurate detection data.

Description

Technical Field

[0001] This utility model relates to the technical field of testing equipment for the secondary utilization of waste lithium batteries, and more specifically, to a device for detecting over-discharge expansion and deformation of waste lithium batteries during secondary utilization. Background Technology

[0002] The cascade utilization of waste lithium batteries refers to the process of using retired vehicle power batteries that still have residual energy value as raw materials, and obtaining cascaded battery products through one or more processes such as dismantling, testing, assembly, and processing, and then reusing them in low-speed electric vehicles, electric bicycles, and energy storage. In this process, vehicle power batteries that still have residual energy value need to undergo rigorous testing, including testing of battery appearance, polarity, residual energy, and safety performance.

[0003] During the testing process, a certain step requires over-discharge treatment of waste lithium batteries. The expansion and change of the shape of the waste lithium batteries during the over-discharge process are observed to determine the tiered utilization value of the waste lithium batteries. The existing expansion and deformation detection is mostly evaluated by the visual observation of the inspectors and the measurement of measuring tools. The accuracy is not good enough. At the same time, close-range measurement poses a great safety risk and the labor intensity is high. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting over-discharge expansion and deformation of waste lithium batteries for secondary use. This device can automatically detect the deformation of waste lithium batteries during the over-discharge process and generate detection data, which is then remotely transmitted to the testing personnel. It offers good testing safety, reduces the workload of testing personnel, and provides accurate detection data.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A device for detecting over-discharge expansion and deformation of waste lithium batteries for secondary use includes a waste lithium battery pack. A terminal block is inserted into the end of the waste lithium battery pack, and a discharge wire is connected to the terminal block. The device includes an L-shaped support plate, with a control box connected to the lower end of the L-shaped support plate. The vertical section of the L-shaped support plate is mounted to a frame using wall bolts. The control box has a display screen, a control panel, and terminal blocks on its surface. The terminal blocks are connected to the terminal blocks of an upper and lower detection plate via wiring. The upper and lower detection plates have L-shaped cross-sections. The upper detection plate is inverted and positioned at the upper left of the waste lithium battery pack, while the lower detection plate is symmetrically positioned at the lower right of the waste lithium battery pack. The left sides of the upper and lower detection plates are fixedly connected by an L-shaped connecting rod, and the right side is open. Several ultrasonic distance sensors are equidistantly spaced on the inner sides of both the horizontal and vertical sections of the upper and lower detection plates. All ultrasonic distance sensors are connected to the terminal blocks via wiring.

[0007] As a further optimization of this solution, the lower surface of the horizontal section of the L-shaped support plate is provided with four tie rods, each of which is connected to a turntable. A connecting stud is connected to the turntable. The connecting stud is screwed into the threaded holes at both ends of the waste lithium battery pack to lift the waste lithium battery pack to the area between the upper and lower detection plates.

[0008] As a further optimization of this solution, the control box is provided with a vertically parallel connecting seat on its side. The outer ends of the vertically parallel connecting seats each have a guide rod extending forward. The guide rod passes through the surface of the lower detection plate, and the guide rod is provided with two limiting baffles, one inside and one outside.

[0009] As a further optimization of this solution, a drive motor is mounted on one side of the upper surface of the control box via a base. The output shaft of the drive motor is connected to a drive screw. The drive screw passes through a threaded sleeve on the surface of the upper detection plate and is connected to a rotating bearing. The rotating bearing is installed on the inner side of the support plate. The upper end of the support plate is connected to the protruding area on the lower surface of the L-shaped bracket plate.

[0010] As a further optimization of this solution, the control box includes a processor, a memory, and a signal transmission module. The control box and the drive motor are connected to an external power supply, and the drive motor is connected to the control box via wiring.

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

[0012] This invention utilizes an upper and lower detection plate structure. A tie rod suspends the waste lithium battery pack between the upper and lower detection plates. A drive motor rotates a drive screw in both directions, causing the upper and lower detection plates to reciprocate along the guide rod. This, in turn, drives several ultrasonic distance sensors to scan and measure the distance around the four sides of the waste lithium battery pack. During over-discharge, when a certain location on a side plate of the waste lithium battery pack expands and deforms, the distance at that location changes significantly and is detected by the ultrasonic distance sensors. The ultrasonic distance sensors then transmit a signal to the control box. The control box can remotely transmit the received data to the inspector's mobile device via an internal signal transmission module, facilitating remote data acquisition, improving inspection safety, reducing the workload of inspectors, and ensuring high accuracy of the data detected by the ultrasonic distance sensors. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the upper structure of the expansion deformation detection device of this utility model;

[0014] Figure 2 This is a schematic diagram of the guide rod connection structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the rear structure of the expansion deformation detection device of this utility model;

[0016] Figure 4 This is a schematic diagram of the installation structure of the ultrasonic distance sensor of this utility model;

[0017] In the diagram: 1. Waste lithium battery pack; 2. Terminal block; 3. Discharge wire; 4. L-shaped bracket plate; 5. Control box; 6. Terminal block; 7. Wiring; 8. Upper detection plate; 9. Lower detection plate; 10. Connecting seat; 11. Guide rod; 12. Limiting baffle; 13. Pull rod; 14. Turntable; 15. Connecting stud; 16. Drive motor; 17. Drive screw; 18. Rotary bearing; 19. Support plate; 20. Threaded sleeve; 21. Ultrasonic distance sensor; 22. L-shaped connecting rod. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0019] To address the issues that current expansion and deformation detection methods rely primarily on visual observation and measurement by inspectors, which are not accurate enough, pose significant safety risks at close range, and involve high labor intensity;

[0020] like Figure 1As shown, this application includes a waste lithium battery pack 1, with a terminal block 2 inserted into the end of the waste lithium battery pack 1, and a discharge wire 3 connected to the terminal block 2. The over-discharge expansion and deformation detection device includes an L-shaped support plate 4, with a control box 5 connected to the lower end of the L-shaped support plate 4. The vertical section of the L-shaped support plate 4 is installed on the frame by wall bolts. The surface of the control box 5 is provided with a display screen, a control panel, and terminal blocks 6. The terminal blocks 6 are connected to the terminal blocks of the upper detection plate 8 and the lower detection plate 9 through wires. The upper detection plate 8 and the lower detection plate 9 have L-shaped cross sections. The upper detection plate 8 is inverted and set at the upper left position of the waste lithium battery pack 1, and the lower detection plate 9 is symmetrically set at the lower right position of the waste lithium battery pack 1.

[0021] like Figure 4 As shown, the upper detection plate 8 and the lower detection plate 9 are fixedly connected on the left by an L-shaped connecting rod 22 and open on the right. Several ultrasonic distance sensors 21 are provided at equal intervals on the inner sides of the horizontal and vertical sections of the upper detection plate 8 and the lower detection plate 9. Several ultrasonic distance sensors 21 are connected to the terminal block through wires.

[0022] like Figure 2 As shown, the lower surface of the horizontal section of the L-shaped bracket plate 4 is provided with four tie rods 13, each tie rod 13 is connected to a turntable 14, and a connecting stud 15 is connected to the turntable 14. The connecting stud 15 is screwed into the threaded holes at both ends of the waste lithium battery pack 1 to lift the waste lithium battery pack 1 to the area between the upper detection plate 8 and the lower detection plate 9. The side of the control box 5 is provided with a vertically parallel connecting seat 10. The outer ends of the vertically parallel connecting seats 10 all have guide rods 11 extending forward. The guide rods 11 pass through the surface of the lower detection plate 9. The guide rods 11 are provided with two inner and outer limit baffles 12.

[0023] like Figure 3 As shown, a drive motor 16 is mounted on one side of the upper surface of the control box 5 via a base. The output shaft of the drive motor 16 is connected to a drive screw 17. The drive screw 17 passes through the threaded sleeve 20 on the surface of the upper detection plate 8 and is connected to a rotating bearing 18. The rotating bearing 18 is installed on the inner side of the support plate 19. The upper end of the support plate 19 is connected to the protruding area on the lower surface of the L-shaped bracket plate 4.

[0024] Specifically, the control box 5 includes a processor, memory, and signal transmission module. The control box 5 and drive motor 16 are powered by an external power source. The drive motor 16 is connected to the control box 5 via wiring. First, the waste lithium battery pack 1 is inserted through the opening into the area between the upper detection plate 8 and the lower detection plate 9. Then, the turntable 14 is rotated, and each connecting stud 15 is screwed into the threaded holes at both ends of the waste lithium battery pack 1. The waste lithium battery pack 1 is then hoisted, and the discharge wire 3 of the waste lithium battery pack 1 is connected to begin the over-discharge operation. During this process, the equipment operating parameters are input through the control panel, and the drive motor 16 drives the drive screw 17 to rotate forward and backward, thus driving the upper detection plate 8 and the lower detection plate 9. The measuring plate 9 reciprocates along the guide rod 11, thereby driving several ultrasonic distance sensors 21 to scan and measure the distance around the four sides of the waste lithium battery pack 1. When a certain position of the side plate of the waste lithium battery pack 1 expands and deforms, the distance at that position will change significantly and be detected by the ultrasonic distance sensor 21. The sensor transmits a signal to the control box 5, which can remotely transmit the received data to the mobile device of the testing personnel through the internal signal transmission module. This facilitates the testing personnel to remotely obtain the testing data, improves testing safety, reduces the labor intensity of the testing personnel, and ensures that the data detected by the ultrasonic distance sensor 21 is accurate.

[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting over-discharge expansion and deformation during the cascade utilization of waste lithium batteries, comprising a waste lithium battery pack, wherein a terminal block is inserted into the end of the waste lithium battery pack, and a discharge wire is externally connected to the terminal block, characterized in that: The over-discharge expansion and deformation detection device includes an L-shaped support plate. A control box is connected to the lower end of the L-shaped support plate. The vertical section of the L-shaped support plate is installed on the frame by wall bolts. The control box has a display screen, control panel, and terminal blocks on its surface. The terminal blocks are connected to the terminals of the upper and lower detection plates via wiring. The upper and lower detection plates have L-shaped cross-sections. The upper detection plate is inverted and positioned at the upper left of the waste lithium battery pack, and the lower detection plate is symmetrically positioned at the lower right of the waste lithium battery pack. The left sides of the upper and lower detection plates are fixedly connected by an L-shaped connecting rod, and the right side is open. Several ultrasonic distance sensors are equidistantly spaced on the inner sides of the horizontal and vertical sections of the upper and lower detection plates. The ultrasonic distance sensors are all connected to the terminal blocks via wiring.

2. The over-discharge expansion and deformation detection device for the cascade utilization of waste lithium batteries according to claim 1, characterized in that: The lower surface of the horizontal section of the L-shaped support plate is provided with four tie rods, each of which is connected to a turntable. A connecting stud is connected to the turntable. The connecting stud is screwed into the threaded holes at both ends of the waste lithium battery pack to lift the waste lithium battery pack to the area between the upper and lower detection plates.

3. The over-discharge expansion and deformation detection device for the cascade utilization of waste lithium batteries according to claim 2, characterized in that: The control box is provided with a vertically parallel connecting seat on its side. Each of the vertically parallel connecting seats has a guide rod extending forward from its outer end. The guide rod passes through the surface of the lower detection plate and has two limiting baffles, one inside and one outside, on its body.

4. The over-discharge expansion and deformation detection device for the cascade utilization of waste lithium batteries according to claim 3, characterized in that: A drive motor is mounted on one side of the upper surface of the control box via a base. The output shaft of the drive motor is connected to a drive screw. The drive screw passes through a threaded sleeve on the surface of the upper detection plate and is connected to a rotating bearing. The rotating bearing is installed on the inner side of the support plate. The upper end of the support plate is connected to the protruding area on the lower surface of the L-shaped bracket plate.

5. The over-discharge expansion and deformation detection device for the cascade utilization of waste lithium batteries according to claim 4, characterized in that: The control box includes a processor, a memory, and a signal transmission module. The control box and the drive motor are connected to an external power supply, and the drive motor is connected to the control box via wiring.

Images