Battery opening equipment

By designing a laser hole opening device for lithium batteries, combining the conveying components and waste box components, the safety hazards and environmental pollution problems in the lithium battery recycling process are solved, and fast and safe battery hole opening and electrolyte recycling is achieved.

CN222711126UActive Publication Date: 2025-04-04ANHUI LUDA INTELLIGENT EQUIP TECH CO LTD
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Patent Information

Application Number
CN202421283110.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-06
Publication Date
2025-04-04
Estimated Expiration
2034-06-06

AI Technical Summary

Technical Problem

There are safety hazards and environmental pollution problems in the recycling process of existing lithium batteries, especially in the recycling process of electrolyte, which is prone to fire and explosion. The traditional salt water soaking and discharge method takes up a long time, covers a large area, and generates wastewater and waste gas.

Method used

A battery hole opening device is designed, using a laser head for opening, combining the conveying components, material frames, waste box components and smoke dust components to achieve fast and safe battery hole opening and electrolyte recovery.

Benefits of technology

It improves the safety and efficiency of battery openings, reduces the probability of battery smoking, reduces environmental pollution and safety risks of operators, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a battery hole opening device, including: a shell, a conveying component, a material frame and a laser head, wherein there is a through hole on each of the two opposite sides of the shell, the conveying component is installed between the two through holes, the tail of the conveying component is connected to the material frame, and the laser head is arranged inside the shell through a laser head mounting seat. It also includes an air knife located above the laser head, a waste box component outside the conveyor belt, a push plate and a smoke alarm, which are used to monitor whether there is safety conditions such as battery smoking during the hole opening process, and take timely countermeasures. The micro-negative pressure state caused by the smoke and dust extraction component prevents toxic gases from leaking into the environment.
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Description

Technical Field

[0001] The utility model relates to the field of new energy, and in particular to a battery opening device. Background Art

[0002] With the country's vigorous promotion of new energy, the lithium battery industry has developed rapidly, and the application of lithium batteries has become more and more extensive. Lithium batteries have been closely integrated with our lives. In addition to precious metal materials, lithium batteries also contain harmful substances inside. Direct disposal will cause great harm to the environment. Therefore, after lithium batteries reach the end of their service life, they are usually recycled. For example, soft-pack batteries for digital electronics, square batteries in new energy vehicle power battery packs, blade batteries and cylindrical batteries are recycled and disassembled, and the recyclable materials are collected.

[0003] Even if lithium batteries have reached the end of their service life, most of them still have a certain amount of electricity left in them, and fire and explosion are very likely to occur during the disassembly process. For example, when recovering electrolyte, if the electrolyte is extracted by suction, the drill rod will handle the inside of the battery for a long time, causing the battery to be in a short-circuit state, which poses a great safety hazard; if a nail or puncture needle is used to directly puncture the battery, this is equivalent to a puncture test for lithium batteries, and fully charged batteries rarely pass, so the practical value is very small; there are other disassembly methods that require softening the battery before opening a hole in the battery, or charging and discharging the battery to consume active substances, and finally pressurizing the drill when there is no electricity. This method has a too long process and too much equipment investment.

[0004] The above-mentioned battery opening method is mostly to facilitate the subsequent recovery of the electrolyte or its solvent in the waste battery. At present, waste lithium batteries are generally discharged by soaking in salt water, and then the batteries are crushed to recover the positive and negative electrode materials and metal components therein, and the electrolyte or its solvent is directly incinerated. After the waste lithium battery is discharged by soaking in salt water, it can also be directly drilled to recover the electrolyte or its solvent, but the salt water soaking discharge time needs at least 7 days, which is a long time, occupies a large area, and also produces wastewater and waste gas. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a lithium battery opening device with strong versatility and high safety performance, thereby solving the problem of difficult recovery of electrolyte or its solvent in waste lithium-ion batteries.

[0006] The utility model provides a battery hole opening device, comprising: a shell, a conveying component, a material frame and a laser head, wherein two opposite sides of the shell are each provided with a through hole, the conveying component is installed between the two through holes, the tail of the conveying component is connected to the material frame, and the laser head is arranged inside the shell through a laser head mounting seat.

[0007] Furthermore, the conveying assembly includes a conveyor belt and a motor. The motor is located outside the conveyor belt. The motor drives the conveyor belt to move. The conveyor belt includes a second conveying group and a first conveying group connected in sequence. The other end of the first conveying group is connected to the material frame.

[0008] Furthermore, a second transition shaft and a first transition shaft are sequentially arranged between the second conveying group and the first conveying group.

[0009] Furthermore, it also includes an air knife, which is located above the laser head. Preferably, it includes a first laser head and a first air knife located below the conveying assembly, and / or a second laser head and a second air knife located outside the conveying assembly.

[0010] Furthermore, it also includes a waste box assembly, which is located inside the shell and outside the conveyor belt.

[0011] Furthermore, the waste box assembly includes a waste box cover, a cylinder and a waste box, and the waste box cover moves upward or downward under the action of the cylinder.

[0012] Furthermore, it also includes a push plate, which pushes the batteries on the conveying assembly into the waste box when the waste box cover is lifted.

[0013] Furthermore, it also includes a smoke and dust extraction component, which is located above the shell. The smoke and dust extraction component includes a hose, a bent pipe and a centrifugal fan. Both ends of the hose are respectively connected to the centrifugal fan and the inside of the shell. One end of the bent pipe is connected to the centrifugal fan, and the other end is connected to the exhaust pipe.

[0014] Furthermore, a smoke alarm is included to detect the smoke concentration inside the shell.

[0015] In summary, the utility model includes a first conveying group and a second conveying group, which are adapted to be used in conjunction with a transition conveying device, and are conducive to the transmission of different types of batteries. The battery hole opening equipment utilizes a laser hole opening method, which not only has a fast hole opening speed, but also can accurately control the size of the aperture, thereby improving the safety during hole opening. The battery hole opening equipment is also provided with a waste box assembly, a material pushing assembly, a leveling assembly and a smoke sensor, which are used to monitor whether there is safety conditions such as battery smoking during the hole opening process, and to take timely countermeasures. The micro-negative pressure state caused by the smoke extraction assembly prevents any toxic gas from leaking into the environment during the operation of the battery hole opening equipment, thereby reducing pollution to the environment and ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a battery opening device of the present invention is shown.

[0017] Figure 2 A cross-sectional view of the battery opening device of the present invention is shown.

[0018] Figure 3 A schematic diagram of a conveying assembly of the present invention is shown.

[0019] Figure 4 A schematic diagram of a transition transmission device of the present invention is shown.

[0020] Figure 5 A schematic diagram of a second laser assembly of the present invention is shown.

[0021] Figure 6 A schematic diagram of a waste bin assembly of the present invention is shown.

[0022] Figure 7 A schematic diagram of the pusher assembly of the utility model is shown.

[0023] Figure 8 A schematic diagram of a leveling assembly of the present invention is shown.

[0024] Fig. 9 A schematic diagram of a first laser assembly of the present invention is shown.

[0025] Component number description

[0026] 100-Battery opening equipment

[0027] 1- Shell

[0028] 2- conveying assembly, 21- conveyor belt, 211- first conveying group, 212- second conveying group, 213- second transition shaft, 214- first transition shaft, 22- motor, 221- first motor, 222- second motor, 24- transition transmission device, 241- small pressure wheel, 242- large pressure wheel, 2431- first small synchronous pulley, 2432- second small synchronous pulley, 244

[0029] -Transition synchronous belt, 245-driven synchronous belt, 2461-first large synchronous belt pulley, 2462-second large synchronous belt pulley, 2471

[0030] -First transition synchronous pulley, 2472-Second transition synchronous pulley, 248-Short synchronous belt, 249-First transition shaft, 240

[0031] - Second transition shaft, 37 – bearing

[0032] 3-Material frame

[0033] 4-Through hole

[0034] 6-push assembly, 61-first push plate, 62-push seat, 63-first cylinder, 64-photoelectric seat, 65-second photoelectric sensor

[0035] 7-waste box assembly, 71-waste box cover, 72-second cylinder, 73-waste box

[0036] 8-leveling assembly, 81-third cylinder, 82-second push plate,

[0037] 9-smoke and dust extraction assembly, 91-hose, 911-first hose, 912-second hose, 913-third hose, 92-centrifugal fan, 93-elbow

[0038] 10-first laser assembly, 101-first air knife, 102-first laser head

[0039] 11-second laser assembly, 111-second air knife, 112-first photoelectric sensor, 113-second laser head

[0040] 12-Smoke alarm DETAILED DESCRIPTION

[0041] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0042] See also Figures 1 to 9 It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0043] Figure 1 A schematic diagram of a battery opening device of the present invention is shown. Figure 2 A cross-sectional view of the battery opening device of the present invention is shown. Figure 3 A schematic diagram of a conveying assembly of the present invention is shown. Figure 4 A schematic diagram of a transition transmission device of the present invention is shown. Figure 5 A schematic diagram of a second laser assembly of the present invention is shown. Figure 6 A schematic diagram of a waste bin assembly of the present invention is shown. Figure 7 A schematic diagram of the pusher assembly of the utility model is shown. Figure 8 A schematic diagram of a leveling assembly of the present invention is shown. Fig. 9 A schematic diagram of a first laser assembly of the present invention is shown.

[0044] like Figure 1 and Figure 2 As shown, the battery opening device 100 comprises: a housing 1, a conveying assembly 2 and a material frame 3. There is a through hole 4 on each of the two opposite sides of the housing, the conveying assembly 2 is installed between the two through holes 4, and the tail of the conveying assembly 2 is connected to the material frame 3.

[0045] like Figure 3 As shown, the conveying assembly 2 includes a conveyor belt 21 and a motor 22, the motor 22 is located outside the conveyor belt 21, and drives the conveyor belt 21 to move. The conveyor belt 21 includes a first conveyor group 211 and a second conveyor group 212, and the first conveyor group 211 is close to the material frame 3. The second transition shaft 213 and the first transition shaft 214 are sequentially arranged between the second conveyor group 212 and the first conveyor group 211, which is conducive to reducing the gap between the first conveyor group 211 and the second conveyor group 212, so that shorter batteries can also pass through the first conveyor group 211 and the second conveyor group 212 smoothly. The motor 22 includes a first motor 221 and a second motor 222, and the first motor 221 and the second motor 222 can be located on the same side or opposite sides of the transmission belt 21. When the first motor 221 fails or needs maintenance, the conveyor belt is driven by the second motor 222 to move, so as to avoid stopping the entire battery opening device 100 due to the failure of the first motor 221 to work, thereby improving the working efficiency and increasing the service life of the motor.

[0046] like Figure 4 As shown, the conveying assembly 2 also includes a transition transmission device 24, which is located on the outside of the conveyor belt 11. The first small synchronous pulley 2431 and the second large synchronous pulley 2462 are coaxially arranged, and the second small synchronous pulley 2432 and the second transition synchronous pulley 2472 are coaxially connected. The transition synchronous belt 244 surrounds the first small synchronous pulley 2431 and the second small synchronous pulley 2432, and the large pressure wheel 242 is close to the transition synchronous belt 244. The driven synchronous belt 245 surrounds the first large synchronous pulley 2461 and the second large synchronous pulley 2462, and the bearing 37 is close to the driven synchronous belt 245. The short synchronous belt 248 surrounds the first transition synchronous pulley 2471 and the second transition synchronous pulley 2472, and the small pressure wheel 241 is close to the short synchronous belt 248. The first transition synchronous pulley 2471 and the second transition synchronous pulley 2472 are respectively located on the first transition shaft 249 and the second transition shaft 240.

[0047] Under the joint action of the driven synchronous belt 245, the first large synchronous pulley 2461, and the second large synchronous pulley 2462, the power is transmitted to the second conveying group 212. Under the joint action of the transition synchronous belt 244, the first small synchronous pulley 2431, and the second small synchronous pulley 2432, the power is transmitted to the first transition shaft 249; under the joint action of the short synchronous belt 248 and the transition synchronous pulley 244, the power is transmitted to the second transition shaft 240. By adjusting the slackness of the short synchronous belt 248, the transition synchronous belt 244, or the driven synchronous belt 245, the transmission is smoother, which is suitable for the transmission of lithium-ion batteries with smaller sizes.

[0048] like Figure 7 As shown, the battery opening device 100 also includes a pusher assembly 6, which is located inside the housing 1 and above the tail of the conveyor belt 21, and includes a first pusher plate 61, a pusher seat 62, a first cylinder 63, a photoelectric seat 64, and a second photoelectric sensor 65. The two pusher seats 62 are respectively located at both ends of the first cylinder 63 and are vertically connected to the first cylinder 63. The first pusher plate 61 and the second photoelectric sensor 65 are respectively located on the two pusher seats 62. After the second photoelectric sensor 65 detects the battery, the first cylinder 63 drives the first pusher plate 61 to swing, and the first pusher plate 61 pushes the battery into the waste box.

[0049] like Figure 6 As shown, the battery opening device 100 also includes a waste box assembly 7, which is located inside the housing 1, outside the conveyor belt 21, and close to the push assembly 6. The waste box assembly 7 includes a waste box cover 71, a second cylinder 72, and a waste box 73. A waste box 73 is arranged below the waste box cover 71, and under the action of the second cylinder 72, the waste box cover 71 moves upward or downward. When the waste box cover 71 moves upward, the waste box 73 is in an open state, which is used to collect the batteries pushed in by the first push plate 61; when the waste box cover 71 moves downward, the waste box cover 71 is pressed down to the waste box 73 to seal the waste box 73.

[0050] like Figure 8 As shown, the battery opening device 100 further includes a leveling assembly 8, which is located outside the conveyor belt and close to the waste bin assembly 7. The leveling assembly 8 includes a third cylinder 81 and a second push plate 82. When a battery is tilted, for example, when the battery is positioned beyond the side of the conveyor belt 21, the second push plate 82 pushes the battery back into the range of the conveyor belt 21 under the action of the third cylinder 81, thereby avoiding affecting the lifting and lowering movement of the waste bin cover 71.

[0051] like Figure 1As shown, the battery opening device 100 also includes a smoke and dust extraction component 9, which is located above the shell 1 and includes a hose 91, a centrifugal fan 92 and a bend 93. The two ends of the hose 91 are respectively connected to the centrifugal fan 91 and the inside of the shell 1. The hose 91 includes a first hose 911, a second hose 912 and a third hose 913. One end of the first hose 911 is connected to the material frame, and the material frame is evacuated under the action of the centrifugal fan 92. The second hose 912 is connected to the shell 1, and the inside of the shell 1 is evacuated under the action of the centrifugal fan 92. One end of the third hose 913 is connected to the waste box 73, and the inside of the waste box 73 is evacuated under the action of the centrifugal fan 92; the other end of the bend 93 is connected to the exhaust pipe, and the exhaust gas collected from the first hose 911, the second hose 912 and the third hose 913 is discharged from the bend 93 under the action of the centrifugal fan 92, so as to prevent harmful gases or smoke from leaking into the environment and ensure the safety of the staff.

[0052] Preferably, when the battery hole opening device 100 is working, the smoke and dust removal component 9 continuously evacuates air under the action of the centrifugal fan 92, so that the pressure inside the battery hole opening device is slightly lower than the ambient atmospheric pressure, that is, the inside of the battery hole opening device is in a slightly negative pressure state, thereby preventing harmful gases or smoke from leaking into the environment.

[0053] like Fig. 9 As shown, the battery opening device 100 also includes a first laser assembly 10 located at the bottom of the first conveying group. The first laser assembly 10 includes a first air knife 101, a first laser head 102, a laser generator 103 and an electronic control device 104. The first air knife 101 is located above the first laser head 102. The first laser head 102 is located below the conveyor belt 21 and is connected to the laser generator 103. The electronic control device 104 controls the laser generator 103 to generate laser light and transmits it to the first laser head 102 to open a hole at the bottom of the battery. The first air knife 101 blows high-pressure gas to the first laser head 102 to prevent the smoke generated during the opening process from entering the interior of the first laser head 102, thereby protecting the first laser head 102.

[0054] like Figure 5 As shown, the battery hole opening device 100 also includes a second laser assembly 11, which is located outside the first conveying group 211 and close to the leveling assembly 8. The second laser assembly 11 includes a second air knife 111, a first photoelectric sensor 112 and a second laser head 113. The two second laser heads 113 are installed at a certain angle, and the two second air knives 42 blow high-pressure gas to the two second laser heads 113 respectively to prevent the smoke and dust generated during the hole opening process from entering the second laser head 113, thereby protecting the second laser head 113. The two second laser heads 113 are installed at a certain angle to better protect the second laser heads 113 from damage.

[0055] In another embodiment, the second laser assembly 11 further includes a smoke alarm 12 to monitor the smoke concentration in real time. If the smoke concentration is greater than a threshold, the waste bin cover is lifted by the second cylinder to open the waste bin cover, and when the second photoelectric sensor detects that a battery is being transmitted, the first push plate pushes the battery into the waste bin under the drive of the first cylinder. The smoke alarm. The cooperation of the push assembly 6, the waste bin assembly 7 and the smoke alarm 12 helps to collect faulty batteries in time.

[0056] The utility model also includes a battery opening method, which is applied to the battery opening device 100 as described above, comprising:

[0057] First, the positive and negative electrodes of the battery are sealed with insulating tape, and the sealed battery is sent to the conveying component 2 for transmission. When the first photoelectric sensor 112 senses that the battery has passed, the second laser head 113 in the second laser component 11 makes a hole on the side of the battery, and the battery after the hole is conveyed to the material frame 3. During the continuous laser emission process, the second air knife 111 always performs high-pressure purge on the second laser head 113 to prevent debris or smoke from damaging the laser head, and the second laser head 113 is cooled by a chiller.

[0058] Alternatively, after the first photoelectric sensor 112 senses the battery, the first laser head 102 in the first laser assembly 10 makes a hole in the bottom of the battery, and the battery after the hole is transferred to the material frame 3. During the continuous laser emission process, the first air knife 101 always performs high-pressure purge on the first laser head 102 to prevent debris or smoke from damaging the laser head, and uses a chiller to cool the first laser head 102.

[0059] The smoke sensor 12 in the second laser assembly 11 always maintains the detection state after the battery opening device is started. When the smoke concentration is detected to be greater than the set threshold, the waste box cover 71 is lifted by the second cylinder 72, and the waste box is in an open state. When the second photoelectric sensor 65 detects that a battery is being conveyed, the first push plate 61 pushes the battery into the waste box 73 under the drive of the first cylinder 63. The pushing action is continued until the smoke concentration is less than the set threshold. At the same time, the leveling assembly levels the batteries that exceed the side of the conveying assembly to prevent affecting the lifting and lowering movement of the waste box cover. The waste box is sealed by pressing down under the action of the cylinder.

[0060] In another embodiment, a grating sensor is further provided above the material frame 3 to detect whether the batteries in the material frame 3 are full. If the batteries are full, the operator is reminded to handle and close the battery opening device 100.

[0061] In summary, the components of the battery hole opening device of the utility model have a simple structure and are easy to install. The conveying assembly includes a first conveying group and a second conveying group, which are used in conjunction with a transition conveying device, which is conducive to the transmission of different types of batteries. The battery hole opening device uses a laser hole opening method, which not only has a fast hole opening speed, but also can accurately control the size of the aperture, improves the safety during hole opening, and reduces the probability of smoke when the battery is opened. At the same time, because the laser has a long service life, the service life of the battery hole opening device is extended. The battery hole opening device is also provided with a waste box assembly, a push assembly, a leveling assembly and a smoke sensor to monitor whether there is a safety situation such as battery smoking during the hole opening process, and take timely countermeasures. The micro-negative pressure state caused by the smoke and dust extraction assembly prevents any toxic gas from leaking into the environment during the operation of the battery hole opening device, thereby reducing pollution to the environment and ensuring the safety of the operator.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A battery opening device, characterized in that: include: A shell, a conveying component, a material frame and a laser head, wherein the shell has a through hole on each of the two opposite sides, the conveying component is installed between the two through holes, the tail of the conveying component is connected to the material frame, and the laser head is arranged inside the shell through a laser head mounting seat.

2. The battery opening device according to claim 1, characterized in that: The conveying assembly includes a conveyor belt and a motor, wherein the motor is located outside the conveyor belt and drives the conveyor belt to move. The conveyor belt includes a second conveying group and a first conveying group connected in sequence, and the other end of the first conveying group is connected to the material frame.

3. The battery opening device as claimed in claim 2, characterized in that: A second transition shaft and a first transition shaft are sequentially arranged between the second conveying group and the first conveying group.

4. The battery opening device according to claim 1, characterized in that: It also includes an air knife, which is located above the laser head.

5. The battery opening device as claimed in claim 4, characterized in that: It includes a first laser head located below the conveying component and / or a second laser head located outside the conveying component.

6. The battery opening device as claimed in claim 5, characterized in that: It also includes a first air knife and / or a second air knife, and the first air knife and / or the second air knife are respectively located above the first laser head and / or the second laser head.

7. The battery opening device as claimed in claim 2, characterized in that: Also included is a waste bin assembly, which is located inside the shell and outside the conveyor belt.

8. The battery opening device as claimed in claim 7, characterized in that: The waste bin assembly comprises a waste bin cover, a cylinder and a waste bin, and the waste bin cover moves upward or downward under the action of the cylinder.

9. The battery opening device as claimed in claim 8, characterized in that: It also includes a push plate, which pushes the batteries on the conveying assembly into the waste bin when the waste bin cover is lifted.

10. The battery opening device according to claim 1, characterized in that: It also includes a smoke and dust extraction component, which is located above the shell. The smoke and dust extraction component includes a hose, a bent pipe and a centrifugal fan. Both ends of the hose are respectively connected to the centrifugal fan and the inside of the shell, one end of the bent pipe is connected to the centrifugal fan, and the other end is connected to the exhaust pipe.

11. The battery opening device according to claim 10, characterized in that: It also includes a smoke alarm to detect the smoke concentration inside the shell.

Citation Information

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