Deflation pressure equalization device and lithium battery recycling line

Abstract

The utility model discloses a kind of deflation pressure leveling device and lithium battery recycling line, it is related to battery recycling technical field.The deflation pressure leveling device includes rack, conveying line, lifting mechanism, pressure holding plate and knife stab mechanism.Conveying line and lifting mechanism are all installed in rack, lifting mechanism is set in the top of conveying line, and is connected with pressure holding plate, pressure holding plate is opened with let go mouth, knife stab mechanism is installed in pressure holding plate, and is set through let go mouth, lifting mechanism is used to drive knife stab mechanism to descend along vertical direction by pressure holding plate, to burst blister cell, knife stab mechanism is used to retract let go mouth after bursting blister cell, lifting mechanism is also used to drive pressure holding plate to continue descending along vertical direction, to press out gas in blister cell.The deflation pressure leveling device provided by the utility model can realize the automatic deflation and flattening of blister cell, with high deflation efficiency and good deflation effect, avoiding affecting the positioning accuracy of subsequent disassembly.

Description

Technical Field

[0001] This utility model relates to the field of battery recycling technology, and more specifically, to a degassing and flattening device and a lithium battery recycling line. Background Technology

[0002] Currently, with the explosive growth in sales of new energy vehicles, the volume of retired batteries is about to enter a period of rapid increase. In the lithium battery recycling process, the cells need to be meticulously disassembled, and before disassembly, the cells need to be discharged. However, pouch cells are prone to generating gas inside during discharge, causing the entire cell to bulge, thus affecting the positioning accuracy of subsequent meticulous disassembly, and consequently impacting disassembly efficiency and effectiveness.

[0003] In view of this, designing and manufacturing a degassing and flattening device that can quickly degas and flatten the battery, and a lithium battery recycling line, is particularly important in lithium battery recycling. Utility Model Content

[0004] The purpose of this invention is to provide a deflation and flattening device that can automatically deflate and flatten bulging battery cells, with high deflation efficiency and good deflation effect, avoiding affecting the positioning accuracy of subsequent disassembly.

[0005] Another objective of this invention is to provide a lithium battery recycling line that can automatically vent and flatten bulging battery cells, with high venting efficiency and good venting effect, thus avoiding affecting the positioning accuracy of subsequent disassembly.

[0006] This utility model is achieved by the following technical solution.

[0007] A degassing and flattening device includes a frame, a conveyor line, a lifting mechanism, a pressure plate, and a piercing mechanism. The conveyor line and the lifting mechanism are both installed on the frame. The lifting mechanism is located above the conveyor line and connected to the pressure plate. The pressure plate has a clearance opening. The piercing mechanism is installed on the pressure plate and passes through the clearance opening. The conveyor line is used to transport the bulging battery cell to the degassing station along a first direction. The lifting mechanism is used to drive the piercing mechanism to descend vertically through the pressure plate to pierce the bulging battery cell. The piercing mechanism is used to retract the clearance opening after piercing the bulging battery cell. The lifting mechanism is also used to drive the pressure plate to continue descending vertically to expel the gas inside the bulging battery cell. The first direction is perpendicular to the vertical direction.

[0008] Optionally, the lifting mechanism includes a mounting frame, a first driving member, a guide column, and a guide sleeve. The mounting frame is connected to the frame, the first driving member is mounted on the mounting frame and connected to the pressure plate, the guide column is connected to the pressure plate, the extension direction of the guide column is the same as the lifting direction of the pressure plate, and the guide sleeve is connected to the mounting frame, with the guide column and guide sleeve slidingly engaged.

[0009] Optionally, there are multiple guide posts and guide sleeves, with multiple guide posts arranged in parallel and spaced apart, and each guide post slidingly engaging with a guide sleeve.

[0010] Optionally, the piercing mechanism includes a second drive member and a blade. The second drive member is mounted on the side of the pressure plate away from the conveyor line and is connected to the blade. The position of the blade corresponds to the position of the relief opening. The second drive member is used to drive the blade to extend or retract into the relief opening.

[0011] Optionally, there are multiple stabbing mechanisms and multiple clearance openings, with multiple stabbing mechanisms spaced apart and each stabbing mechanism passing through a clearance opening.

[0012] Optionally, the deflation and flattening device further includes a centering mechanism mounted on the frame. The centering mechanism is used to push the bulging battery cell in the deflation station to the middle of the conveyor line along the second direction, so that the position of the bulging battery cell corresponds to the position of the piercing mechanism, wherein the second direction, the first direction and the vertical direction are perpendicular to each other.

[0013] Optionally, the centering mechanism includes two pushing components, which are arranged opposite to each other on both sides of the conveyor line along the second direction, and the two pushing components are used to move synchronously and in opposite directions; The actuation assembly includes a third drive unit and a pusher plate. The third drive unit is connected to the pusher plate and is used to push the bulging battery cell relative to the delivery line via the pusher plate.

[0014] Optionally, the deflation and flattening device also includes a position sensor, which is electrically connected to the conveyor line. The position sensor is used to detect the real-time position of the bulging battery cell and control the conveyor line to pause when the bulging battery cell moves to the deflation station.

[0015] Optionally, the venting and flattening device also includes a waste gas treatment mechanism, which includes a vacuum pump, a gas hood, and a treatment module. The gas hood is connected to the frame and is positioned above the lifting mechanism and the conveyor line. One end of the vacuum pump is connected to the gas hood, and the other end is connected to the treatment module. The vacuum pump is used to extract the gas squeezed out from the bulging battery cell to the treatment module.

[0016] A lithium battery recycling line includes the aforementioned venting and flattening device. The venting and flattening device includes a frame, a conveyor line, a lifting mechanism, a pressure plate, and a piercing mechanism. The conveyor line and the lifting mechanism are both installed on the frame. The lifting mechanism is located above the conveyor line and connected to the pressure plate. The pressure plate has a clearance opening. The piercing mechanism is installed on the pressure plate and passes through the clearance opening. The conveyor line is used to convey bulging battery cells to the venting station along a first direction. The lifting mechanism is used to drive the piercing mechanism to descend vertically via the pressure plate to pierce the bulging battery cells. The piercing mechanism is used to retract the clearance opening after piercing the bulging battery cells. The lifting mechanism is also used to drive the pressure plate to continue descending vertically to expel the gas inside the bulging battery cells. The first direction is perpendicular to the vertical direction.

[0017] The degassing and flattening device and lithium battery recycling line provided by this utility model have the following beneficial effects: The degassing and flattening device provided by this utility model includes a conveyor line and a lifting mechanism mounted on a frame. The lifting mechanism is positioned above the conveyor line and connected to a pressure plate. The pressure plate has a clearance opening, and a piercing mechanism is mounted on the pressure plate and passes through the clearance opening. The conveyor line transports the bulging battery cell to the degassing station along a first direction. The lifting mechanism, via the pressure plate, drives the piercing mechanism to descend vertically to pierce the bulging battery cell. After piercing the bulging battery cell, the piercing mechanism retracts from the clearance opening. The lifting mechanism also drives the pressure plate to continue descending vertically to expel the gas inside the bulging battery cell. The first direction is perpendicular to the vertical direction. Compared with the prior art, the degassing and flattening device provided by this utility model, due to the use of a lifting mechanism positioned above the conveyor line and a piercing mechanism mounted on the pressure plate, can achieve automated degassing and flattening of the bulging battery cell, resulting in high degassing efficiency, good degassing effect, and avoiding impact on the positioning accuracy of subsequent disassembly.

[0018] The lithium battery recycling line provided by this utility model includes a venting and flattening device, which can realize the automatic venting and flattening of bulging battery cells. The venting efficiency is high and the venting effect is good, avoiding affecting the positioning accuracy of subsequent disassembly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the venting and flattening device provided in the embodiment of this utility model; Figure 2A schematic diagram of the structure of the venting and flattening device provided in this embodiment of the utility model, in which the lifting mechanism is located above the conveyor line; Figure 3 This is a schematic diagram of the connection between the lifting mechanism and the pressure plate in the deflation and flattening device provided in this embodiment of the utility model. Figure 4 This is a schematic diagram of the connection between the piercing mechanism and the pressure plate in the deflation and flattening device provided in this embodiment of the utility model; Figure 5 A schematic diagram of the centering mechanism in the venting and flattening device provided in this embodiment of the utility model.

[0021] Icons: 100-Degassing and flattening device; 110-Frame; 120-Conveyor line; 130-Lifting mechanism; 131-Mounting frame; 132-First driving component; 133-Guide post; 134-Guide sleeve; 140-Pressure plate; 141-Displacement port; 150-Blade mechanism; 151-Second driving component; 152-Blade; 160-Centering mechanism; 161-Pushing assembly; 162-Third driving component; 163-Push plate; 170-Position sensor; 180-Waste gas treatment mechanism; 181-Vacuum pump; 182-Gas hood; 200-Bulging battery cell. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "inner," "outer," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0028] Please refer to the reference. Figures 1 to 5 This utility model embodiment provides a lithium battery recycling line (not shown) for recycling lithium batteries. It can automatically vent and flatten the bulging battery cells 200, with high venting efficiency and good venting effect, avoiding affecting the positioning accuracy of subsequent disassembly.

[0029] The lithium battery recycling line includes a venting and flattening device 100 and a dismantling and recycling device (not shown in the figure). The venting and flattening device 100 and the dismantling and recycling device are arranged sequentially. The venting and flattening device 100 is used to vent and flatten the bulging battery cell 200, and the dismantling and recycling device is used to finely dismantle the flattened battery cell to achieve battery cell recycling.

[0030] The deflation and flattening device 100 includes a frame 110, a conveyor line 120, a lifting mechanism 130, a pressure plate 140, and a piercing mechanism 150. Both the conveyor line 120 and the lifting mechanism 130 are mounted on the frame 110. The conveyor line 120 is used to convey the bulging battery cells 200. The lifting mechanism 130 is located above the conveyor line 120 and connected to the pressure plate 140. The lifting mechanism 130 is used to drive the pressure plate 140 to rise or fall vertically. The pressure plate 140 has a clearance opening 141, and the piercing mechanism 150 is mounted on the pressure plate 140 and passes through the clearance opening 141. Specifically, the conveyor line 120 is used to transport the bulging battery cell 200 to the venting station along the first direction. The lifting mechanism 130 is used to drive the piercing mechanism 150 to descend vertically via the pressure plate 140 to pierce the bulging battery cell 200. After piercing the bulging battery cell 200, the piercing mechanism 150 retracts the clearance opening 141. The lifting mechanism 130 is also used to drive the pressure plate 140 to continue descending vertically to expel the gas inside the bulging battery cell 200. The first direction is perpendicular to the vertical direction. In this way, the venting and flattening device 100 first pierces the bulging battery cell 200 via the piercing mechanism 150, and then flattens the bulging battery cell 200 via the lifting mechanism 130 and the pressure plate 140, expelling the gas inside. This achieves automated venting and flattening of the bulging battery cell 200, with high venting efficiency and good venting effect, avoiding affecting the positioning accuracy of subsequent disassembly, improving disassembly efficiency, and ensuring disassembly effect.

[0031] The lifting mechanism 130 includes a mounting frame 131, a first driving member 132, a guide post 133, and a guide sleeve 134. The mounting frame 131 is connected to the frame 110. The first driving member 132 is mounted on the mounting frame 131 and connected to the pressure plate 140. The first driving member 132 is used to drive the pressure plate 140 to rise or fall vertically. The guide post 133 is connected to the pressure plate 140, and the extension direction of the guide post 133 is the same as the lifting direction of the pressure plate 140. The guide sleeve 134 is connected to the mounting frame 131. The guide post 133 and the guide sleeve 134 are slidably engaged. The guide post 133 can slide relative to the guide sleeve 134, and the guide sleeve 134 can guide and limit the guide post 133 to ensure that the pressure plate 140 can only rise or fall vertically, thereby improving the stability of the lifting of the pressure plate 140.

[0032] Furthermore, there are multiple guide posts 133 and guide sleeves 134. The multiple guide posts 133 are arranged in parallel and spaced apart. Each guide post 133 is slidably engaged with a guide sleeve 134. The multiple guide posts 133 and multiple guide sleeves 134 work together to further improve the stability of the lifting and lowering of the pressure plate 140. In this embodiment, there are four guide posts 133 and four guide sleeves 134. The four guide posts 133 are distributed in a rectangular array. The first driving member 132 is located in the middle position of the four guide posts 133. However, it is not limited to this. In other embodiments, there may be two guide posts 133 and six guide sleeves 134. The number of guide posts 133 and guide sleeves 134 is not specifically limited.

[0033] The piercing mechanism 150 includes a second drive member 151 and a blade 152. The second drive member 151 is installed on the side of the pressure plate 140 away from the conveyor line 120 and is connected to the blade 152. The position of the blade 152 corresponds to the position of the relief opening 141. The second drive member 151 is used to drive the blade 152 to extend or retract from the relief opening 141. Specifically, during the process of the lifting mechanism 130 driving the pressure plate 140 to descend, the second drive member 151 first drives the blade 152 to extend out of the relief opening 141. At this time, the blade 152 protrudes from the surface of the pressure plate 140 to pierce the bulging battery cell 200. After the blade 152 pierces the bulging battery cell 200, the second drive member 151 drives the blade 152 to retract from the relief opening 141. At this time, the blade 152 no longer protrudes from the surface of the pressure plate 140, so that the pressure plate 140 can flatten the bulging battery cell 200 and expel the gas inside.

[0034] Furthermore, there are multiple piercing mechanisms 150 and clearance openings 141, with the multiple piercing mechanisms 150 spaced apart. Each piercing mechanism 150 passes through a clearance opening 141. The multiple piercing mechanisms 150 work together to simultaneously pierce the bulging battery cell 200 from different positions, ensuring both venting and flattening effects. In this embodiment, there are two piercing mechanisms 150 and two clearance openings 141, with the first driving member 132 positioned between the two piercing mechanisms 150. However, this is not the only embodiment. In other embodiments, there can be three or four piercing mechanisms 150 and four clearance openings 141. The number of piercing mechanisms 150 and clearance openings 141 is not specifically limited.

[0035] Optionally, the deflation and flattening device 100 further includes a centering mechanism 160. The centering mechanism 160 is mounted on the mounting bracket 131 and is used to push the bulging battery cell 200 at the deflation station to the middle of the conveyor line 120 along a second direction, so that the position of the bulging battery cell 200 corresponds to the position of the piercing mechanism 150, wherein the second direction, the first direction, and the vertical direction are perpendicular to each other. Specifically, the piercing mechanism 150 is located directly above the middle of the conveyor line 120 along the second direction. To ensure that the piercing mechanism 150 can stably pierce the bulging battery cell 200, the centering mechanism 160 is used to push the bulging battery cell 200 at the deflation station to the middle of the conveyor line 120, so that the piercing mechanism 150 is aligned with the bulging battery cell 200.

[0036] Furthermore, the centering mechanism 160 includes two pushing components 161, which are arranged opposite to each other on both sides of the conveyor line 120 along a second direction. The two pushing components 161 are used to move synchronously and in opposite directions to ensure that the bulging battery cell 200 is pushed to the center of the conveyor line 120. Specifically, the pushing component 161 includes a third driving member 162 and a pusher plate 163. The third driving member 162 is connected to the pusher plate 163 and is used to push the bulging battery cell 200 relative to the conveyor line 120 through the pusher plate 163.

[0037] In this embodiment, the first driving member 132, the second driving member 151, and the third driving member 162 are all electric cylinders, but they are not limited to this. In other embodiments, the first driving member 132, the second driving member 151, and the third driving member 162 can all be pneumatic cylinders or hydraulic cylinders. The type of the first driving member 132, the second driving member 151, and the third driving member 162 is not specifically limited.

[0038] Optionally, the venting and flattening device 100 also includes a position sensor 170. The position sensor 170 is mounted on the frame 110 and electrically connected to the conveyor line 120. The position sensor 170 is used to detect the real-time position of the bulging battery cell 200 and control the conveyor line 120 to pause when the bulging battery cell 200 moves to the venting station. Then, the centering mechanism 160 pushes the bulging battery cell 200 to the middle of the conveyor line 120, and the lifting mechanism 130 drives the piercing mechanism 150 to descend through the pressure plate 140 to puncture and flatten the bulging battery cell 200.

[0039] Optionally, the venting and flattening device 100 further includes a waste gas treatment mechanism 180. The waste gas treatment mechanism 180 includes a vacuum pump 181, a gas hood 182, and a treatment module (not shown). The gas hood 182 is connected to the frame 110 via a mounting bracket 131 and covers the lifting mechanism 130 and the conveyor line 120. One end of the vacuum pump 181 is connected to the gas hood 182, and the other end is connected to the treatment module. The vacuum pump 181 is used to extract the gas compressed from the bulging battery cell 200 to the treatment module, which is used to purify the gas to avoid environmental pollution.

[0040] The venting and flattening device 100 provided in this embodiment of the utility model includes a conveyor line 120 and a lifting mechanism 130, all mounted on a frame 110. The lifting mechanism 130 is positioned above the conveyor line 120 and connected to a pressure plate 140. The pressure plate 140 has a clearance opening 141. A piercing mechanism 150 is mounted on the pressure plate 140 and passes through the clearance opening 141. The conveyor line 120 is used to convey the bulging battery cell 200 to the venting station along a first direction. The lifting mechanism 130 is used to drive the piercing mechanism 150 to descend vertically via the pressure plate 140 to pierce the bulging battery cell 200. The piercing mechanism 150 is used to retract the clearance opening 141 after piercing the bulging battery cell 200. The lifting mechanism 130 is also used to drive the pressure plate 140 to continue descending vertically to expel the gas inside the bulging battery cell 200. The first direction is perpendicular to the vertical direction. Compared with existing technologies, the degassing and flattening device 100 provided by this utility model, due to the adoption of a lifting mechanism 130 set above the conveyor line 120 and a piercing mechanism 150 installed on the pressure plate 140, can realize automated degassing and flattening of the bulging battery cell 200, with high degassing efficiency and good degassing effect, avoiding affecting the positioning accuracy of subsequent disassembly. This results in high recycling efficiency and good recycling effect for lithium battery recycling lines.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A deflation and flattening device, characterized in that, The device includes a frame, a conveyor line, a lifting mechanism, a pressure plate, and a piercing mechanism. The conveyor line and the lifting mechanism are both mounted on the frame. The lifting mechanism is positioned above the conveyor line and connected to the pressure plate. The pressure plate has a clearance opening. The piercing mechanism is mounted on the pressure plate and passes through the clearance opening. The conveyor line transports the bulging battery cell to the venting station along a first direction. The lifting mechanism, via the pressure plate, drives the piercing mechanism to descend vertically to pierce the bulging battery cell. After piercing the bulging battery cell, the piercing mechanism retracts through the clearance opening. The lifting mechanism also drives the pressure plate to continue descending vertically to expel the gas inside the bulging battery cell. The first direction is perpendicular to the vertical direction.

2. The venting and flattening device according to claim 1, characterized in that, The lifting mechanism includes a mounting frame, a first driving component, a guide column, and a guide sleeve. The mounting frame is connected to the frame. The first driving component is mounted on the mounting frame and connected to the pressure plate. The guide column is connected to the pressure plate, and the extension direction of the guide column is the same as the lifting direction of the pressure plate. The guide sleeve is connected to the mounting frame, and the guide column and the guide sleeve are slidably engaged.

3. The venting and flattening device according to claim 2, characterized in that, The number of guide posts and guide sleeves is multiple, with the multiple guide posts arranged in parallel and spaced apart, and each guide post slidingly engaging with one guide sleeve.

4. The venting and flattening device according to claim 1, characterized in that, The piercing mechanism includes a second drive member and a blade. The second drive member is installed on the side of the pressure plate away from the conveyor line and is connected to the blade. The position of the blade corresponds to the position of the clearance opening. The second drive member is used to drive the blade to extend or retract the clearance opening.

5. The venting and flattening device according to claim 1, characterized in that, The number of the stabbing mechanism and the clearance opening are both multiple, with the multiple stabbing mechanisms arranged at intervals, and each stabbing mechanism passing through one clearance opening.

6. The venting and flattening device according to claim 1, characterized in that, The venting and flattening device further includes a centering mechanism, which is mounted on the frame. The centering mechanism is used to push the bulging battery cell at the venting station to the middle of the conveyor line along the second direction, so that the position of the bulging battery cell corresponds to the position of the piercing mechanism. The second direction, the first direction, and the vertical direction are perpendicular to each other.

7. The venting and flattening device according to claim 6, characterized in that, The centering mechanism includes two pushing components, which are arranged opposite to each other on both sides of the conveyor line along the second direction. The two pushing components are used to move synchronously and in opposite directions. The pushing assembly includes a third driving member and a pusher plate. The third driving member is connected to the pusher plate and is used to push the bulging battery cell relative to the delivery line via the pusher plate.

8. The venting and flattening device according to claim 1, characterized in that, The venting and flattening device also includes a position sensor, which is electrically connected to the conveyor line. The position sensor is used to detect the real-time position of the bulging battery cell and control the conveyor line to pause when the bulging battery cell moves to the venting station.

9. The venting and flattening device according to claim 1, characterized in that, The venting and flattening device also includes a waste gas treatment mechanism, which includes a vacuum pump, a gas hood, and a treatment module. The gas hood is connected to the frame and is positioned above the lifting mechanism and the conveyor line. One end of the vacuum pump is connected to the gas hood, and the other end is connected to the treatment module. The vacuum pump is used to extract the gas compressed from the bulging battery cell to the treatment module.

10. A lithium battery recycling line, characterized in that, Includes the deflation and flattening device as described in any one of claims 1-9.

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