Battery cell tab correction mechanism

Abstract

The utility model relates to the technical field of battery cells, and discloses a battery cell tab correction mechanism which comprises a lower correction structure and an upper correction structure corresponding to the lower correction structure, the lower correction structure comprises a lower correction seat; the top of the lower correcting seat is in sliding connection with a first correcting block and a second correcting block; a spring is arranged between the first correction block and the second correction block to draw close the first correction block and the second correction block; guide blocks are obliquely arranged at the two ends of the top of the lower correction seat; the upper correction mechanism comprises an upper correction seat; a first correction strip and a second correction strip are arranged at the bottom of the upper correction seat at intervals; pulleys are arranged at two ends of the bottom of the upper correcting seat; the battery cell is placed on the lower correction seat, the upper correction mechanism is in contact with the lower correction mechanism, so that the pulley slides along the guide block, the first correction strip and the second correction strip enable the first correction block and the second correction block to move outwards, and correction of the tab of the battery cell is completed.

Description

Technical Field

[0001] This utility model relates to the field of battery cell technology, and specifically to a battery cell tab calibration mechanism. Background Technology

[0002] The battery cell tab alignment mechanism is used in the lithium battery production process to correct bending or deformation of the battery tabs, i.e., the positive and negative electrode connection parts of the battery. The alignment of the tabs is to ensure that the battery can be properly connected during use, thereby improving the battery's performance and safety.

[0003] The following problems exist in the current market: the current battery cell tab calibration mechanism has low displacement adjustability, and the current calibration of battery cell tabs is generally for tabs that are shifted in the outward eight directions, and rarely for tabs that are shifted in the inward eight directions.

[0004] The technical problem to be solved by this utility model is to provide a battery cell tab correction mechanism that can correct the tabs that are shifted in the inward eight directions. Utility Model Content

[0005] The technical problem this invention addresses is: providing a battery cell tab correction mechanism capable of correcting tabs that have shifted in the inward octagonal direction; a first correction block and a second correction block above the lower correction seat are brought together by springs to form a preliminary clamping structure; guide blocks are designed at both ends of the lower correction seat to guide the sliding path of the upper correction mechanism; the upper correction seat gradually corrects the battery cell tabs through the first and second correction bars at the bottom; pulleys at both ends of the upper correction seat allow the upper correction structure to slide along the guide blocks, thereby causing the correction bars to apply outward force to the first and second correction blocks, ultimately achieving the tab correction effect; the battery cell is placed on the lower correction seat, and during operation, by contacting the upper correction mechanism and the lower correction structure, the pulleys slide along the guide blocks, driving the correction bars to apply force to the correction blocks, causing the correction blocks to move outward, thereby correcting the tabs that have shifted in the inward octagonal direction, ensuring that the tabs are accurately corrected to the correct position.

[0006] A battery cell tab calibration mechanism includes a lower calibration structure and an upper calibration structure corresponding to the lower calibration structure. The lower calibration structure includes a lower calibration seat. A first calibration block and a second calibration block are slidably connected to the top of the lower calibration seat. A spring is provided between the first calibration block and the second calibration block to bring them together. Guide blocks are inclined at both ends of the top of the lower calibration seat. The upper calibration mechanism includes an upper calibration seat. A first calibration strip and a second calibration strip are spaced apart at the bottom of the upper calibration seat. Pulleys are provided at both ends of the bottom of the upper calibration seat. The battery cell is placed on the lower calibration seat. By contacting the upper calibration mechanism with the lower calibration mechanism, the pulleys slide along the guide blocks, thereby causing the first calibration strip and the second calibration strip to move the first calibration block and the second calibration block outward, thus completing the tab calibration of the battery cell.

[0007] Preferably, the device further includes a frame; and the bottom of the frame is provided with a plurality of first electric push rods; and the top of the frame is provided with second electric push rods corresponding to the first electric push rods; and an upper correction structure and a lower correction structure are provided inside the frame; and the push rod head of the first electric push rod is connected to the lower correction mechanism; and the push rod head of the second electric push rod is connected to the upper correction mechanism.

[0008] Preferably, the frame is further provided with a first slide rail and a second slide rail; and the upper correction structure slides vertically with the first slide rail; and the lower correction structure slides vertically with the second slide rail.

[0009] Preferably, both the upper and lower calibration seats are equipped with heating wires to heat-press the calibrated battery cell tabs.

[0010] Preferably, the cross-section of the first correction block is left-L shaped, and the cross-section of the second correction block is right-L shaped; and the L-shaped bend of the first correction block passes through the bottom of the second correction block; and the L-shaped bend of the second correction block passes through the bottom of the first correction block.

[0011] Preferably, the top of both the first and second correction blocks are formed with trapezoidal protrusions; and the first and second correction strips abut against the trapezoidal protrusions, thereby causing the first and second correction blocks to move outward.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In the battery cell tab correction mechanism of this utility model, the first correction block and the second correction block above the lower correction seat are brought together by springs to form a preliminary clamping structure; guide blocks are designed at both ends of the lower correction seat to guide the sliding path of the upper correction mechanism; the upper correction seat gradually corrects the battery cell tabs through the first correction strip and the second correction strip at the bottom; the pulleys at both ends of the upper correction seat allow the upper correction structure to slide along the guide blocks, thereby allowing the correction strips to apply outward force to the first correction block and the second correction block, ultimately achieving the effect of tab correction; the battery cell is placed on the lower correction seat. During operation, by contacting the upper correction mechanism and the lower correction structure, the pulleys slide along the guide blocks, driving the correction strips to apply force to the correction blocks, causing the correction blocks to move outward, thereby correcting the tabs that have shifted in the inward direction, ensuring that the tabs are accurately corrected to the correct position.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a utility model Figure 1 Another structural diagram from another angle.

[0017] Figure 3 This is a schematic diagram of the lower correction structure of this utility model.

[0018] Figure 4 This is a utility model Figure 3 A magnified structural diagram at point A.

[0019] Figure 5 This is a utility model Figure 3 A schematic diagram of the internal structure.

[0020] Figure 6 This is a utility model Figure 5 A magnified structural diagram at point B.

[0021] Figure 7 This is a schematic diagram of the upper correction structure of this utility model.

[0022] Figure 8 This is a utility model Figure 7 A magnified structural diagram at point C.

[0023] In the diagram: 1. Lower correction structure; 2. Upper correction structure; 3. Lower correction seat; 4. First correction block; 5. Second correction block; 6. Spring; 7. Guide block; 8. Upper correction seat; 9. First correction bar; 10. Second correction bar; 11. Pulley; 12. Frame; 13. First electric push rod; 14. Second electric push rod; 15. First slide rail; 16. Second slide rail; 18. Trapezoidal protrusion. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0026] Please see Figures 1-8 In this embodiment of the present invention, a battery cell tab calibration mechanism includes a lower calibration structure 1 and an upper calibration structure 2 corresponding to the lower calibration structure 1; the lower calibration structure 1 includes a lower calibration seat 3; and a first calibration block 4 and a second calibration block 5 are slidably connected to the top of the lower calibration seat 3; and a spring 6 is provided between the first calibration block 4 and the second calibration block 5 to bring them together; and guide blocks 7 are inclinedly provided at both ends of the top of the lower calibration seat 3; the upper calibration mechanism includes an upper calibration seat 8; and a first calibration strip 9 and a second calibration strip 10 are spaced apart at the bottom of the upper calibration seat 8; and pulleys 11 are provided at both ends of the bottom of the upper calibration seat 8; the battery cell is placed on the lower calibration seat 3, and by contacting the upper calibration mechanism with the lower calibration mechanism, the pulleys 11 slide along the guide blocks 7, thereby causing the first calibration strip 9 and the second calibration strip 10 to move the first calibration block 4 and the second calibration block 5 outward, thereby completing the tab calibration of the battery cell.

[0027] Specifically, the first correction block 4 and the second correction block 5 above the lower correction seat 3 are brought together by the spring 6 to form a preliminary clamping structure; guide blocks 7 are designed at both ends of the lower correction seat 3 to guide the sliding path of the upper correction mechanism; the upper correction seat 8 gradually corrects the battery cell tabs through the first correction bar 9 and the second correction bar 10 at the bottom; the pulleys 11 at both ends of the upper correction seat 8 allow the upper correction structure 2 to slide along the guide block 7, thereby allowing the correction bar to apply an outward force to the first correction block 4 and the second correction block 5, ultimately achieving the effect of tab correction; the battery cell is placed on the lower correction seat 3. During operation, by contacting the upper correction mechanism and the lower correction structure 1, the pulley 11 slides along the guide block 7, driving the correction bar to apply force to the correction block, causing the correction block to move outward, thereby correcting the tabs that have shifted in the inward direction, ensuring that the tabs are accurately corrected to the correct position.

[0028] Furthermore, it also includes a frame 12; and the bottom of the frame 12 is provided with a plurality of first electric push rods 13; and the top of the frame 12 is provided with second electric push rods 14 corresponding to the first electric push rods 13; and the upper correction structure 2 and the lower correction structure 1 are provided inside the frame 12; and the push rod head of the first electric push rod 13 is connected to the lower correction mechanism; and the push rod head of the second electric push rod 14 is connected to the upper correction mechanism.

[0029] Specifically, the frame 12 provides support and a framework structure for the entire calibration mechanism. Multiple first electric push rods 13 are configured at the bottom of the frame 12, with their push rod heads connected to the lower calibration mechanism. This allows the electric push rods to control the position of the lower calibration structure 1, ensuring its precise vertical movement. At the top of the frame 12, a second electric push rod 14, corresponding to the first electric push rods 13, is provided, with its push rod head connected to the upper calibration mechanism. The function of the second electric push rod 14 is to control the up-and-down movement of the upper calibration structure 2, thereby adjusting the contact force and position between the calibration strip and the cell tab. Both the upper calibration structure 2 and the lower calibration structure 1 are housed inside the frame 12. The coordinated action of the first and second electric push rods 14 enables the entire calibration process to achieve not only precise calibration but also automatic adjustment based on the size or requirements of different cells. For example, after the cell tab calibration is completed, the electric push rods can reset the upper calibration structure 2 and the lower calibration structure 1, preparing for the next calibration.

[0030] Furthermore, the frame 12 is also provided with a first slide rail 15 and a second slide rail 16 inside; and the upper correction structure 2 slides vertically with the first slide rail 15; and the lower correction structure 1 slides vertically with the second slide rail 16.

[0031] Specifically, the two slide rails installed inside the frame 12 provide a more stable sliding path for the upper correction structure 2 and the lower correction structure 1, preventing them from tilting or shaking unnecessarily during adjustment. The upper correction structure 2 and the first slide rail 15 slide up and down together, ensuring that the upper correction structure 2 can move precisely along the predetermined track during the cell tab correction process, avoiding errors caused by free sliding. The lower correction structure 1 and the second slide rail 16 work together to ensure that the lower correction structure 1 maintains the correct positioning during the correction process and achieves stable up and down adjustment.

[0032] Furthermore, both the upper calibration seat 8 and the lower calibration seat 3 are equipped with heating wires to heat-press the calibrated battery cell tabs.

[0033] Specifically, during the calibration process, the heating wires inside the upper calibration seat 8 and the lower calibration seat 3 will provide the necessary heat to perform hot pressing on the calibrated battery cell tabs. By heating the battery cell tabs, the tab material can be made softer, and then physical pressure can be used to make it fit more closely and stabilize its shape. After calibration, by maintaining appropriate temperature and pressure, the heating wires help to accelerate the stabilization of the battery cell tabs and prevent the tabs from springing back or deforming due to external forces.

[0034] Furthermore, the cross-section of the first correction block 4 is left-L shaped, and the cross-section of the second correction block 5 is right-L shaped; and the L-shaped bend of the first correction block 4 passes through the bottom of the second correction block 5; and the L-shaped bend of the second correction block 5 passes through the bottom of the first correction block 4.

[0035] Specifically, during the calibration process, the first calibration block 4 and the second calibration block 5 will clamp and fix the battery cell tabs by contacting them and using their L-shaped structures. Since the first calibration block 4 is located above the second calibration block 5, the pressure of the calibration blocks can be more evenly distributed on the battery cell tabs, thereby achieving precise tab positioning. The L-shaped structure provides a larger contact area, which helps to improve the stability of the calibration process and avoids excessive deformation of the tabs or failure to be calibrated properly. Since the L-shaped structures of the first calibration block 4 and the second calibration block 5 interlock, they can effectively prevent relative movement of the calibration blocks during the calibration process, ensuring the positional accuracy of the tabs during calibration.

[0036] Furthermore, trapezoidal protrusions 18 are formed on the top of both the first correction block 4 and the second correction block 5; and the first correction strip 9 and the second correction strip 10 abut against the trapezoidal protrusions 18, thereby causing the first correction block 4 and the second correction block 5 to move outward.

[0037] Specifically, the trapezoidal structure provides precise positioning and guidance, preventing the correction block from tilting or shifting during movement; the trapezoidal shape allows the force of the upper correction structure 2 to be concentrated in a specific area, ensuring the smooth movement of the correction block; the top design of the trapezoid increases the contact area with the correction strip, ensuring that the correction strip can make uniform contact with the correction block during correction, thereby generating a more uniform external force and helping the correction block move outward more stably.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A battery cell tab calibration mechanism, characterized in that, The device includes a lower correction structure (1) and an upper correction structure (2) corresponding to the lower correction structure (1); the lower correction structure (1) includes a lower correction seat (3); the top of the lower correction seat (3) is slidably connected to a first correction block (4) and a second correction block (5); a spring (6) is provided between the first correction block (4) and the second correction block (5) to bring them together; and guide blocks (7) are inclined at both ends of the top of the lower correction seat (3); the upper correction mechanism includes an upper correction seat (8); the bottom of the upper correction seat (8) is spaced apart by a first correction strip (9) and a second correction strip (10); and pulleys (11) are provided at both ends of the bottom of the upper correction seat (8); the battery cell is placed on the lower correction seat (3), and by contacting the upper correction mechanism with the lower correction mechanism, the pulleys (11) slide along the guide block (7), thereby causing the first correction strip (9) and the second correction strip (10) to move the first correction block (4) and the second correction block (5) outward, thereby completing the electrode correction of the battery cell.

2. The cell tab correction mechanism according to claim 1, characterized in that, It also includes a frame (12); and the bottom of the frame (12) is provided with a plurality of first electric push rods (13); and the top of the frame (12) is provided with a second electric push rod (14) corresponding to the first electric push rods (13); and the upper correction structure (2) and the lower correction structure (1) are provided inside the frame (12); and the push rod head of the first electric push rod (13) is connected to the lower correction mechanism; and the push rod head of the second electric push rod (14) is connected to the upper correction mechanism.

3. The cell tab correction mechanism according to claim 2, characterized in that, The frame (12) is also provided with a first slide rail (15) and a second slide rail (16); and the upper correction structure (2) slides up and down with the first slide rail (15); and the lower correction structure (1) slides up and down with the second slide rail (16).

4. The cell tab correction mechanism according to claim 1, characterized in that, Both the upper calibration seat (8) and the lower calibration seat (3) are equipped with heating wires to heat-press the calibrated battery cell tabs.

5. A cell tab correction mechanism according to claim 1, characterized in that, The cross-section of the first correction block (4) is left-L shaped, and the cross-section of the second correction block (5) is right-L shaped; and the L-shaped bend of the first correction block (4) passes through the bottom of the second correction block (5); and the L-shaped bend of the second correction block (5) passes through the bottom of the first correction block (4).

6. A cell tab correction mechanism according to claim 5, characterized in that, The top of the first correction block (4) and the second correction block (5) are both formed with trapezoidal protrusions (18); and the first correction strip (9) and the second correction strip (10) abut against the trapezoidal protrusions (18) so that the first correction block (4) and the second correction block (5) move outward.

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