Battery cell leveling device

Abstract

The utility model discloses a battery cell leveling device. The battery cell leveling device comprises a first leveling mechanism and a second leveling mechanism which are oppositely arranged, and the first leveling mechanism and the second leveling mechanism can clamp a battery cell. The first leveling mechanism comprises a first rotating wheel, a first transmission mechanism and a first pressing wheel, and the first transmission mechanism is connected with the first rotating wheel and the first pressing wheel. The first rotating wheel can rotate in the first direction to drive the first transmission mechanism to rotate, so that the first transmission mechanism drives the first pressing wheel to move in the direction close to the second leveling mechanism, and the battery cell is flattened. When the battery cell enters the position between the first leveling mechanism and the second leveling mechanism, the battery cell makes contact with the first rotating wheel and drives the first rotating wheel to rotate in the first direction. According to the battery cell leveling device, the battery cell is leveled without manual operation, but the first pressing wheel is triggered by the movement of the battery cell to level the battery cell, so that the labor cost is reduced, and the battery cell leveling efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of battery equipment, and in particular to a cell leveling device. Background Technology

[0002] In the manufacturing process of battery cells, leveling is one of the key steps to ensure cell quality, especially for pouch cells. The outer packaging material of pouch cells is soft and easily deformed. If there are protrusions or uneven edges on the surface of the pouch cell before processing, it will not only affect subsequent edge rolling, causing frequent alarms at later processing stations due to the inability to detect the cell, but also lead to poor edge folding. Current leveling operations typically rely on manual inspection of the cell's appearance and shape, and manual leveling is not only time-consuming and labor-intensive, but also inefficient. Utility Model Content

[0003] The main purpose of this utility model is to provide a battery cell leveling device, which aims to solve the technical problems that manual leveling of battery cells is not only time-consuming and labor-intensive, but also has low leveling efficiency.

[0004] In order to achieve the above-mentioned utility model objectives, this utility model provides a battery cell leveling device.

[0005] A battery cell leveling device includes a first leveling mechanism and a second leveling mechanism disposed opposite to each other, the first leveling mechanism and the second leveling mechanism being capable of clamping the battery cell;

[0006] The first leveling mechanism includes a first rotating wheel, a first transmission mechanism, and a first pressure wheel, wherein the first transmission mechanism is connected to the first rotating wheel and the first pressure wheel respectively;

[0007] The first rotating wheel can rotate in a first direction to drive the first transmission mechanism to rotate, so that the first transmission mechanism drives the first pressure wheel to move toward the direction of the second leveling mechanism and flatten the battery cell.

[0008] In one embodiment, the first rotating wheel is rotatable in a second direction to drive the first transmission mechanism to rotate, so that the first transmission mechanism drives the first pressure wheel to move away from the second leveling mechanism and separate from the battery cell, wherein the first direction is opposite to the second direction.

[0009] In one embodiment, the second leveling mechanism includes a second rotating wheel, a second transmission mechanism, and a second pressure wheel, wherein the second transmission mechanism is connected to the second rotating wheel and the second pressure wheel respectively;

[0010] The second rotating wheel can rotate in a second direction to drive the second transmission mechanism to rotate, so that the second transmission mechanism drives the second pressure wheel to move toward the first pressure wheel and flatten the battery cell. The second direction is opposite to the first direction.

[0011] In one embodiment, the second rotating wheel can rotate in a first direction to drive the second transmission mechanism to rotate, so that the second transmission mechanism drives the second pressure wheel to move away from the first pressure wheel and separate from the battery cell.

[0012] In one embodiment, the first rotating wheel and the second rotating wheel are disposed opposite to each other; and / or

[0013] The first pressure roller and the second pressure roller are arranged opposite to each other.

[0014] In one embodiment, the first transmission mechanism includes a first transmission component, a first rotating shaft, and a second transmission component. The first transmission component is connected to the first rotating wheel and the first rotating shaft, respectively, and the second transmission component is connected to the first pressure wheel and the first rotating shaft, respectively.

[0015] The first rotating wheel rotates along the first direction to drive the first transmission component to rotate. The first transmission component drives the first rotating shaft to rotate around its own axis. The first rotating shaft drives the second transmission component to rotate. The second transmission component drives the first pressure wheel to move closer to the second leveling mechanism.

[0016] In one embodiment, the first rotating wheel and the first pressure wheel are located on both sides of the first rotating shaft along a direction perpendicular to the opposite direction of the first leveling mechanism and the second leveling mechanism.

[0017] In one embodiment, the first transmission assembly includes a second rotating shaft, a turbine, and a worm gear. The second rotating shaft is connected to the first rotating wheel and the worm gear, respectively. The worm gear is meshed with the turbine gear, and the turbine gear is connected to the first rotating shaft.

[0018] The first rotating wheel can drive the second rotating shaft to rotate, the second rotating shaft drives the worm to rotate, and the worm drives the turbine to rotate, so that the turbine drives the first rotating shaft to rotate around its own axis.

[0019] In one embodiment, the second transmission component includes a gear, a half gear, and a moving rod. The gear is connected to the first rotating shaft, the half gear has a gear portion and a connecting portion, the gear meshes with the gear portion of the half gear, the connecting portion of the half gear is connected to one end of the moving rod, and the other end of the moving rod is connected to the first pressure roller.

[0020] The first rotating shaft can drive the gear to rotate, so that the gear drives the half gear to rotate, and then the connecting part of the half gear drives the moving rod to move closer to the second leveling mechanism.

[0021] In one embodiment, the cell leveling device further includes a base, a third leveling mechanism, and a fourth leveling mechanism. The third leveling mechanism and the fourth leveling mechanism are disposed opposite to each other and are capable of clamping the cell. The first leveling mechanism, the second leveling mechanism, the third leveling mechanism, and the fourth leveling mechanism are disposed on the base, with the first leveling mechanism and the second leveling mechanism located at one end of the base and the third leveling mechanism and the fourth leveling mechanism located at the other end of the base.

[0022] Beneficial effects:

[0023] This utility model discloses a battery cell leveling device, comprising a first leveling mechanism and a second leveling mechanism arranged opposite to each other, which together clamp the battery cell. The first leveling mechanism includes a first rotating wheel, a first transmission mechanism, and a first pressure wheel. The first transmission mechanism is connected to both the first rotating wheel and the first pressure wheel. The first rotating wheel can rotate in a first direction to drive the first transmission mechanism to rotate, causing the first transmission mechanism to drive the first pressure wheel to move towards the second leveling mechanism and flatten the battery cell. When the battery cell enters between the first and second leveling mechanisms, the battery cell contacts the first rotating wheel, causing the first rotating wheel to rotate in the first direction. The first rotating wheel drives the first transmission mechanism to rotate, causing the first transmission mechanism to drive the first pressure wheel towards the second leveling mechanism and flatten the battery cell. The entire process eliminates the need for manual operation to level the battery cell; instead, the movement of the battery cell itself triggers the first pressure wheel to level the battery cell, reducing labor costs and effectively improving the efficiency of battery cell leveling. Attached Figure Description

[0024] Figure 1 This is a side view of a cell leveling device according to an embodiment of the present invention.

[0025] Figure 2 This is a front view of a cell leveling device according to an embodiment of the present invention.

[0026] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0027] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0028] Figure 5 yes Figure 2 Enlarged view of point C in the middle.

[0029] in:

[0030] 100. First leveling mechanism; 110. First rotating wheel; 120. First transmission mechanism; 121. First transmission assembly; 1211. Second rotating shaft; 1212. Turbine; 1213. Worm gear; 122. First rotating shaft; 123. Second transmission assembly; 1231. Gear; 1232. Half gear; 1234. Gear section; 1235. Connecting part; 1233. Moving rod; 124. Third rotating shaft; 130. First pressure roller; 140. Buffer seat; 150. Upper housing; 160. Lower housing;

[0031] 200. Second leveling mechanism; 210. Second rotating wheel; 220. Second pressure wheel;

[0032] 300. Battery cell; 310. Battery cell body; 320. Corner portion of battery cell;

[0033] 400. Base;

[0034] 500. Third leveling mechanism.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] like Figures 1 to 5As shown, in some embodiments, a battery cell leveling device includes a first leveling mechanism 100 and a second leveling mechanism 200 disposed opposite to each other, which are capable of clamping the battery cell 300. The first leveling mechanism 100 includes a first rotating wheel 110, a first transmission mechanism 120, and a first pressure wheel 130, with the first transmission mechanism 120 connected to both the first rotating wheel 110 and the first pressure wheel 130. The first rotating wheel 110 is capable of rotating in a first direction to drive the first transmission mechanism 120 to rotate, thereby causing the first transmission mechanism 120 to drive the first pressure wheel 130 to move toward the second leveling mechanism 200 and flatten the battery cell 300. Specifically, the battery cell 300 can be a pouch cell.

[0041] like Figure 1 As shown, when the battery cell 300 enters between the first leveling mechanism 100 and the second leveling mechanism 200, the battery cell 300 moves from top to bottom, contacts the first rotating wheel 110, and generates friction in the contact area. This friction acts on the edge of the first rotating wheel 110, causing the battery cell 300 to drive the first rotating wheel 110 to rotate in a first direction. The first rotating wheel 110 drives the first transmission mechanism 120 to rotate, causing the first transmission mechanism 120 to drive the first pressure wheel 130 to move towards the second leveling mechanism 200 and flatten the battery cell 300. The entire process does not require manual operation to level the battery cell 300. Instead, the movement of the battery cell 300 itself triggers the first pressure wheel 130 to level the battery cell 300. That is, when the battery cell 300 moves from top to bottom, the first rotating wheel 110 and the first transmission mechanism 120 can cause the first pressure wheel 130 to flatten the battery cell, reducing labor costs and effectively improving the leveling efficiency of the battery cell 300.

[0042] like Figure 1As shown, the first rotating wheel 110 is located above the first pressure wheel 130. The battery cell 300 enters from top to bottom between the first leveling mechanism 100 and the second leveling mechanism 200. The leveling operation can be divided into a triggering stage, a transmission stage, and a leveling stage. When the battery cell 300 enters between the first leveling mechanism 100 and the second leveling mechanism 200, the battery cell 300 contacts the first rotating wheel 110. Due to the movement of the battery cell 300, the first rotating wheel 110 will rotate in the first direction. This is the trigger point of the entire leveling process, using the movement of the battery cell 300 itself to start the leveling operation. After the first rotating wheel 110 rotates, it transmits power to the first transmission mechanism 120, causing the first transmission mechanism 120 to rotate around its own axis. This process is the transmission stage. After the first transmission mechanism 120 rotates, it drives the first pressure wheel 130 to move towards the second leveling mechanism 200. Because the first leveling mechanism 100 and the second leveling mechanism 200 are arranged opposite to each other, the movement of the first pressure roller 130 enables it to work together with the second leveling mechanism 200 to form a clamping force on the battery cell 300, thereby performing a flattening operation on the battery cell 300.

[0043] Specifically, the first leveling mechanism 100 includes a buffer seat 140, an upper housing 150, and a lower housing 160. The buffer seat 140 is connected to both the upper housing 150 and the lower housing 160. A first rotating wheel 110 is partially disposed within the upper housing 150 and is rotatable relative to the upper housing 150. A first transmission mechanism 120 is disposed within the buffer seat 140 and is rotatable relative to the buffer seat 140. A first pressure wheel 130 is disposed within the lower housing 160 and is rotatable relative to the lower housing 160.

[0044] Specifically, the first leveling mechanism 100 and the second leveling mechanism 200 have the same structure.

[0045] In some embodiments, the cell leveling device further includes a base 400, a third leveling mechanism 500, and a fourth leveling mechanism (not shown in the figure). The third leveling mechanism 500 and the fourth leveling mechanism are disposed opposite to each other, and the third leveling mechanism 500 and the fourth leveling mechanism are capable of clamping the cell 300. The first leveling mechanism 100, the second leveling mechanism 200, the third leveling mechanism 500, and the fourth leveling mechanism are disposed on the base 400, with the first leveling mechanism 100 and the second leveling mechanism 200 located at one end of the base 400, and the third leveling mechanism 500 and the fourth leveling mechanism located at the other end of the base 400. Specifically, the third leveling mechanism 500 and the fourth leveling mechanism have the same structure as the first leveling mechanism 100.

[0046] Specifically, the base 400 serves as the basic support structure. The two ends of the base 400 correspond to the two ends of the battery cell 300. That is, the two ends of the base 400 correspond to the corner portions 320 of the battery cell. Through the coordinated operation of the first leveling mechanism 100, the second leveling mechanism 200, the third leveling mechanism 500, and the fourth leveling mechanism, the corner portions at both ends of the battery cell 300 can be leveled.

[0047] In some embodiments, the first rotating wheel 110 can rotate in a second direction to drive the first transmission mechanism 120 to rotate, so that the first transmission mechanism 120 drives the first pressure wheel 130 to move away from the second leveling mechanism 200 and separate from the battery cell 300, with the first direction being opposite to the second direction. Figure 1 As shown, the first direction can be clockwise, and the second direction can be counterclockwise. After flattening, the battery cell 300 is driven to move upwards. At this time, the battery cell 300 contacts the first rotating wheel 110 again, and drives the first rotating wheel 110 to rotate in the second direction (opposite to the first direction). The rotation of the first rotating wheel 110 in the second direction is transmitted through the first transmission mechanism 120, which drives the first pressure wheel 130 to move away from the second leveling mechanism 200, so that the first pressure wheel 130 separates from the battery cell 300, completing the reset action and preparing for the leveling operation of the next battery cell 300.

[0048] This battery cell leveling device enables automated cyclic operation. During the up-and-down movement of the battery cell 300, the device can flatten and reset the battery cell 300 without frequent manual intervention to adjust the position of the pressure roller, thus improving the automation level of the production process and reducing labor costs.

[0049] Furthermore, after the flattening operation is completed, the first pressure roller 130 promptly separates from and resets to avoid excessive compression or damage to the battery cell 300 that might occur from prolonged contact between the first pressure roller 130 and the battery cell 300. This battery cell leveling device can quickly reset and prepare for the leveling operation of the next battery cell 300, ensuring the continuity of the production process. In large-scale production, it enables the production line to maintain a stable and efficient operating state.

[0050] In some embodiments, the second leveling mechanism 200 includes a second rotating wheel 210, a second transmission mechanism (not shown in the figure), and a second pressure wheel 220. The second transmission mechanism is connected to both the second rotating wheel 210 and the second pressure wheel 220. The second rotating wheel 210 is capable of rotating in a second direction to drive the second transmission mechanism to rotate, so that the second transmission mechanism drives the second pressure wheel 220 to move toward the first pressure wheel 130 and flatten the battery cell 300. The second direction is opposite to the first direction.

[0051] Specifically, the second rotating wheel 210 can rotate in the first direction to drive the second transmission mechanism to rotate, so that the second transmission mechanism drives the second pressure wheel 220 to move away from the first pressure wheel 130 and separate from the battery cell 300.

[0052] Specifically, the first rotating wheel 110 and the second rotating wheel 210 are arranged opposite to each other. The first pressure wheel 130 and the second pressure wheel 220 are arranged opposite to each other.

[0053] It should be noted that, since the first rotating wheel 110 and the second rotating wheel 210 are arranged opposite to each other, the battery cell 300 can simultaneously contact and rotate with them during movement. This simultaneous triggering mechanism ensures that the first pressure wheel 130 and the second pressure wheel 220 can operate synchronously. The oppositely arranged first rotating wheel 110 and second rotating wheel 210 can stably sense the movement of the battery cell 300, ensuring that the first pressure wheel 130 and the second pressure wheel 220 can start the flattening operation in a timely and stable manner. The opposite arrangement of the first pressure wheel 130 and the second pressure wheel 220, and their ability to simultaneously flatten the battery cell 300, means that the battery cell 300 is subjected to pressure in two opposite directions at the same time. This bidirectional pressure can be more evenly distributed on the surface of the battery cell 300, effectively avoiding the problem of uneven local force and poor flattening effect that may be caused by unilateral pressure.

[0054] In some embodiments, the first transmission mechanism 120 includes a first transmission component 121, a first rotating shaft 122, and a second transmission component 123. The first transmission component 121 is connected to the first rotating wheel 110 and the first rotating shaft 122, respectively, and the second transmission component 123 is connected to the first pressure wheel 130 and the first rotating shaft 122, respectively. The first rotating wheel 110 rotates in a first direction to drive the first transmission component 121 to rotate. The first transmission component 121 drives the first rotating shaft 122 to rotate around its own axis. The first rotating shaft 122 drives the second transmission component 123 to rotate. The second transmission component 123 drives the first pressure wheel 130 to move closer to the second leveling mechanism 200.

[0055] It should be noted that when the battery cell 300 enters the battery cell leveling device, the battery cell 300 drives the first rotating wheel 110 to rotate in the first direction, and the first rotating wheel 110 becomes the power source for the entire transmission process. The first rotating wheel 110 drives the first transmission assembly 121 to start rotating. After the first transmission assembly 121 rotates, it transmits power to the first rotating shaft 122, causing the first rotating shaft 122 to rotate around its own axis. The rotation of the first rotating shaft 122 drives the second transmission assembly 123 to rotate, and the second transmission assembly 123 then converts the rotation into a suitable motion form, driving the first pressure roller 130 to move towards the second leveling mechanism 200.

[0056] In some embodiments, along a direction perpendicular to the first leveling mechanism 100 and the second leveling mechanism 200, i.e. Figure 2 Along the length of the battery cell 300, the first rotating wheel 110 and the first pressure wheel 130 are located on either side of the first rotating shaft 122. For example... Figure 2 As shown, the first rotating wheel 110 is located to the right of the first rotating shaft 122. The first pressure wheel 130 is located to the left of the first rotating shaft 122. The right side of the first rotating shaft 122 corresponds to the battery cell body 310. The left side of the first rotating shaft 122 corresponds to the battery cell corner portion 320. The battery cell body 310 protrudes relative to the battery cell corner portion 320. When the battery cell 300 moves from top to bottom, the battery cell body 310 on the right side of the first rotating shaft 122 can contact the first rotating wheel 110 and the second rotating wheel 210, and respectively drive the first pressure wheel 130 and the second pressure wheel 220 to move, so that the first pressure wheel 130 and the second pressure wheel 220 flatten the battery cell corner portion 320 on the left side of the first rotating shaft 122.

[0057] like Figure 5 As shown, in some embodiments, the first transmission assembly 121 includes a second rotating shaft 1211, a turbine 1212, and a worm gear 1213. The second rotating shaft 1211 is connected to the first rotating wheel 110 and the worm gear 1213, respectively. The worm gear 1213 is meshed with the turbine gear 1212, and the turbine gear 1212 is connected to the first rotating shaft 122. The first rotating wheel 110 can drive the second rotating shaft 1211 to rotate, the second rotating shaft 1211 drives the worm gear 1213 to rotate, and the worm gear 1213 drives the turbine gear 1212 to rotate, so that the turbine gear 1212 drives the first rotating shaft 122 to rotate around its own axis.

[0058] It should be noted that when the cell 300 moves, causing the first rotating wheel 110 to rotate, the rotation of the first rotating wheel 110 is directly transmitted to the second rotating shaft 1211. After the second rotating shaft 1211 rotates, it drives the worm 1213 to rotate. Since the worm 1213 meshes with the turbine 1212, the rotation of the worm 1213 drives the turbine 1212 to rotate. This meshing transmission is based on the tooth structure of the worm 1213 and the turbine 1212. During the rotation, the helical teeth of the worm 1213 interact with the teeth of the turbine 1212, thereby driving the turbine 1212 to rotate. After the turbine 1212 rotates, it transmits power to the first rotating shaft 122, causing the first rotating shaft 122 to rotate around its own axis. Through the meshing transmission of the worm 1213 and the turbine 1212, the circular motion of the first rotating wheel 110 is transmitted through the second rotating shaft 1211 and converted into the circular motion of the first rotating shaft 122. This conversion of motion and power transmission enables the rotation of the first rotating wheel 110 to be effectively transmitted to the first rotating shaft 122.

[0059] like Figure 4As shown, in some embodiments, the second transmission assembly 123 includes a gear 1231, a half gear 1232, and a moving rod 1233. The gear 1231 is connected to the first rotating shaft 122. The half gear 1232 has a gear portion 1234 and a connecting portion 1235. The gear 1231 meshes with the gear portion 1234 of the half gear 1232. The connecting portion 1235 of the half gear 1232 is connected to one end of the moving rod 1233, and the other end of the moving rod 1233 is connected to the first pressure roller 130. The first rotating shaft 122 can drive the gear 1231 to rotate, so that the gear 1231 drives the half gear 1232 to rotate, thereby causing the connecting portion 1235 of the half gear 1232 to drive the moving rod 1233 to move towards the second leveling mechanism 200.

[0060] The second transmission assembly 123 also includes a third rotating shaft 124. The third rotating shaft 124 is connected to the moving rod 1233, and the third rotating shaft 124 is rotatable relative to the lower housing 160.

[0061] It should be noted that when the first rotating shaft 122 rotates around its own axis under the drive of the turbine 1212, the first rotating shaft 122 drives the gear 1231 to rotate synchronously, and the first rotating shaft 122 becomes the power source of the entire second transmission assembly 123. When the gear 1231 rotates, it drives the half gear 1232 to rotate through meshing with the gear part 1234 of the half gear 1232. The rotation of the half gear 1232 will cause the connecting part 1235 to rotate accordingly. The connecting part 1235 of the half gear 1232 drives the moving rod 1233 to rotate around the third rotating shaft 124 as the origin. The third rotating shaft 124 can act as a fulcrum for the moving rod 1233, so that the moving rod 1233 rotates around the third rotating shaft 124 as the center. This rotational motion ultimately causes the moving rod 1233 to drive the first pressure roller 130 to move closer to or away from the second pressure roller 220. The setting of the third rotating shaft 124 provides stable support and rotation center for the movement of the moving rod 1233. During the movement of the moving rod 1233, the rotation of the third rotating shaft 124 relative to the lower housing 160 ensures that the movement trajectory of the moving rod 1233 is more stable and accurate, reducing swaying and deviation during the movement, thereby improving the stability and accuracy of the movement of the first pressure roller 130 and helping to improve the flattening quality of the battery cell 300.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A cell leveling device, characterized in that, It includes a first leveling mechanism and a second leveling mechanism that are arranged opposite to each other, and the first leveling mechanism and the second leveling mechanism are capable of clamping the battery cell; The first leveling mechanism includes a first rotating wheel, a first transmission mechanism, and a first pressure wheel, wherein the first transmission mechanism is connected to the first rotating wheel and the first pressure wheel respectively; The first rotating wheel can rotate in a first direction to drive the first transmission mechanism to rotate, so that the first transmission mechanism drives the first pressure wheel to move toward the direction of the second leveling mechanism and flatten the battery cell.

2. The cell leveling device according to claim 1, characterized in that, The first rotating wheel can rotate in the second direction to drive the first transmission mechanism to rotate, so that the first transmission mechanism drives the first pressure wheel to move away from the second leveling mechanism and separate from the battery cell. The first direction is opposite to the second direction.

3. The cell leveling device according to claim 1, characterized in that, The second leveling mechanism includes a second rotating wheel, a second transmission mechanism, and a second pressure wheel, wherein the second transmission mechanism is connected to the second rotating wheel and the second pressure wheel respectively; The second rotating wheel can rotate in a second direction to drive the second transmission mechanism to rotate, so that the second transmission mechanism drives the second pressure wheel to move toward the first pressure wheel and flatten the battery cell. The second direction is opposite to the first direction.

4. The cell leveling device according to claim 3, characterized in that, The second rotating wheel can rotate in the first direction to drive the second transmission mechanism to rotate, so that the second transmission mechanism drives the second pressure wheel to move away from the first pressure wheel and separate from the battery cell.

5. The cell leveling device according to claim 3, characterized in that, The first rotating wheel and the second rotating wheel are arranged opposite to each other; and / or The first pressure roller and the second pressure roller are arranged opposite to each other.

6. The cell leveling device according to claim 1, characterized in that, The first transmission mechanism includes a first transmission component, a first rotating shaft, and a second transmission component. The first transmission component is connected to the first rotating wheel and the first rotating shaft, respectively, and the second transmission component is connected to the first pressure wheel and the first rotating shaft, respectively. The first rotating wheel rotates along the first direction to drive the first transmission component to rotate. The first transmission component drives the first rotating shaft to rotate around its own axis. The first rotating shaft drives the second transmission component to rotate. The second transmission component drives the first pressure wheel to move closer to the second leveling mechanism.

7. The cell leveling device according to claim 6, characterized in that, Along a direction perpendicular to the first leveling mechanism and the second leveling mechanism, the first rotating wheel and the first pressure wheel are located on both sides of the first rotating shaft.

8. The cell leveling device according to claim 6, characterized in that, The first transmission assembly includes a second rotating shaft, a turbine, and a worm gear. The second rotating shaft is connected to the first rotating wheel and the worm gear, respectively. The worm gear is meshed with the turbine gear, and the turbine gear is connected to the first rotating shaft. The first rotating wheel can drive the second rotating shaft to rotate, the second rotating shaft drives the worm to rotate, and the worm drives the turbine to rotate, so that the turbine drives the first rotating shaft to rotate around its own axis.

9. The cell leveling device according to claim 6, characterized in that, The second transmission assembly includes a gear, a half gear, and a moving rod. The gear is connected to the first rotating shaft. The half gear has a gear portion and a connecting portion. The gear meshes with the gear portion of the half gear. The connecting portion of the half gear is connected to one end of the moving rod, and the other end of the moving rod is connected to the first pressure roller. The first rotating shaft can drive the gear to rotate, so that the gear drives the half gear to rotate, and then the connecting part of the half gear drives the moving rod to move closer to the second leveling mechanism.

10. The cell leveling device according to claim 1, characterized in that, The battery cell leveling device further includes a base, a third leveling mechanism, and a fourth leveling mechanism. The third leveling mechanism and the fourth leveling mechanism are arranged opposite to each other and can clamp the battery cell. The first leveling mechanism, the second leveling mechanism, the third leveling mechanism, and the fourth leveling mechanism are disposed on the base, with the first leveling mechanism and the second leveling mechanism located at one end of the base and the third leveling mechanism and the fourth leveling mechanism located at the other end of the base.

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