A battery string production apparatus

Abstract

A battery string production device, the bearing assembly has a bearing surface for bearing a battery sheet group, and a welding strip group is laid on the battery sheet group on the bearing surface of the bearing assembly; the positioning mechanism comprises a receiving assembly, a pressing part and a force applying part, the receiving assembly is arranged on the sliding seat and located outside the bearing assembly, the pressing part is a long strip-shaped metal sheet, the pressing part is wound in a receiving cavity of the receiving assembly, the receiving assembly is used for sending the pressing part out to above the welding strip group on the bearing assembly along a second direction, and the force applying part is used for cooperating with the receiving assembly to press the pressing part downwards to press the welding strip group. The application sends out the long strip-shaped pressing part through the receiving assembly fixed on the conveying mechanism, and the pressing part is used for pressing the welding strip group on the battery sheet group on the conveying mechanism through the force applying part, the positioning mechanism moves synchronously with the sliding seat, and the welding strip group and the battery sheet group are kept relatively static during movement.

Description

Technical Field

[0001] This application relates to the field of battery string production, specifically to a battery string production equipment. Background Technology

[0002] In the battery module production process, battery cells and solder ribbons are first stacked on a conveyor mechanism to form battery strings. These strings are then transported to a curing station where the curing mechanism secures the solder ribbons to the battery cells. However, because solder ribbons are thin and have low rigidity, they can easily shift relative to the cells when the conveyor mechanism moves the stacked ribbons and cells. Therefore, existing battery string production equipment places tooling on the stacked battery strings in the conveyor mechanism to press the solder ribbons firmly onto the cells.

[0003] Battery string production equipment requires a tooling conveyor line and two handling mechanisms. The first handling mechanism picks up tooling from the tooling conveyor line and places it onto the stacked battery strings. After the battery strings are cured by a curing mechanism, the second handling mechanism removes the tooling from the cured battery strings and places it back onto the tooling conveyor line, which then transports the tooling back to the first handling mechanism. This necessitates that existing battery string production equipment have sufficient assembly space to accommodate the tooling conveyor line and the two handling mechanisms; otherwise, the tooling cannot be reused. However, existing battery string production equipment needs to fulfill multiple functions, making it difficult to reserve enough space to accommodate the use of tooling. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a battery string production device, the specific technical solution of which is as follows: A battery string production equipment, characterized in that the battery string production equipment includes a conveying mechanism and a positioning mechanism, the conveying mechanism includes a sliding seat, a bearing component and a first driving member, the first driving member is used to drive the sliding seat to slide horizontally back and forth along a first direction, the bearing component is disposed on the sliding seat, the bearing component has a bearing surface for receiving battery cell groups, and a welding ribbon is laid on the battery cell group on the bearing surface of the bearing component; The positioning mechanism includes a storage component, a clamping component, and a force-applying component. The storage component is disposed on the sliding seat and located outside the bearing component. The clamping component is a long strip of metal sheet. The clamping component is wound inside the storage cavity of the storage component. The storage component is used to deliver the clamping component to the top of the welding strip group on the bearing component along a second direction. The second direction is perpendicular to the first direction on a horizontal plane. The force-applying component is used in conjunction with the storage assembly to press the clamping member downwards to press the welding strip assembly; The storage assembly is also used to retract the clamping element located on the welding strip assembly into the storage cavity.

[0005] This application uses a storage component fixed to the conveying mechanism to deliver a long strip-shaped clamping member. A force-applying component then presses the welding strip assembly onto the battery cell assembly on the conveying mechanism. A positioning mechanism moves synchronously with the sliding seat, ensuring that the welding strip assembly and the battery cell assembly remain relatively stationary during movement. The positioning mechanism is directly mounted on the sliding seat of the conveying mechanism, achieving battery string clamping without occupying additional space. This allows the battery string production equipment to accommodate other functional components. After the battery string welding is completed, the storage component directly retracts the clamping member. The storage component enables the loading and unloading of the clamping member without requiring additional components for cyclic movement, thus improving the configuration flexibility of the battery string production equipment.

[0006] In some embodiments, the positioning mechanism further includes a support base, a first rotating shaft, and a second driving member, wherein: The support base is disposed on one side of the sliding seat, the first rotating shaft is rotatably mounted on the support base, and the second driving member is used to drive the first rotating shaft to rotate along its own axis. The storage assembly includes a box body and a rotating wheel. The rotating wheel is sleeved on the first rotating shaft. The first end of the clamping member is fixed on the rotating wheel, and the clamping member is wound around the rotating wheel. The box body is mounted on the support base, the first rotating shaft passes through the box body, the rotating wheel is located in the inner cavity of the box body, there is a storage cavity for accommodating the clamping member between the rotating wheel and the inner wall of the inner cavity of the box body, and the box body has an outlet port for the second end of the clamping member to extend out on the side facing the bearing assembly.

[0007] The clamping component is stored in the storage cavity formed by the box and the rotating wheel. The rotating wheel is driven by the first rotating shaft to send out and retract the clamping component, which realizes the rapid sending out and retraction of the clamping component. The box of the storage component is set outside one side of the sliding seat by the support base, without occupying extra space without affecting the normal operation of the sliding seat.

[0008] In some embodiments, when the second end of the clamping member is located at the discharge port of the box body, the clamping member wound around the rotating wheel abuts against the inner wall of the box body.

[0009] By limiting the size of the storage cavity formed by the box and the rotating wheel, the clamping component is kept taut during retraction and delivery, preventing the rotating wheel from spinning idly and the clamping component from remaining stationary, thus ensuring the stable movement of the clamping component.

[0010] In some embodiments, a clearance step is provided on the outer side wall of the rotating wheel, the distance from the clearance step to the center of the rotating wheel is less than the outer diameter of the rotating wheel, and the first end of the clamping member is fixed to the clearance step by screws.

[0011] By fixing the first end of the clamping component to the clearance step with screws, the clamping component can be wound in a regular spiral shape on the rotating wheel, ensuring that the clamping component can be sent out stably and at a uniform speed. This facilitates the prediction and planning of the movement path of the clamping component and improves the movement accuracy of the clamping component.

[0012] In some embodiments, multiple storage components are provided, each storage component contains one clamping member, and every two storage components correspond to one battery cell. Each solder strip on each battery cell is clamped to the corresponding battery cell by two clamping members.

[0013] By setting up multiple storage components, the solder ribbons on each battery cell are pressed by two clamping parts, ensuring that the solder ribbons and the battery cell are relatively stationary. Furthermore, each storage component is driven by the first rotating shaft of the positioning mechanism, which realizes the synchronous operation of each clamping part and reduces equipment costs.

[0014] In some embodiments, the force-applying component is a permanent magnet, which is embedded on the bearing surface of the bearing assembly. The force-applying component is located directly below the extension path of the clamping member. The force-applying component magnetically attracts the clamping member downwards, so that the clamping member presses the welding strip group onto the battery cell group.

[0015] The permanent magnet pulls the clamping element, which extends above the bearing surface of the support component, downwards, pressing the solder strip assembly firmly onto the battery cell assembly, thus achieving relative fixation between the solder strip assembly and the battery cell assembly. The permanent magnet is directly embedded in the support component and does not occupy additional space, further reducing the footprint of the positioning mechanism.

[0016] In some embodiments, the positioning mechanism further includes a lifting frame and a fifth driving member. The storage component is mounted on the lifting frame, which is vertically and vertically mounted on the sliding seat. The fifth driving member includes a gear, a rack, and a first motor. The first motor is mounted on the sliding seat and is used to drive the gear to rotate. The rack is mounted on the lifting frame, and the rack meshes with the gear.

[0017] After the storage component is lifted by the fifth drive component, the storage component then sends out the clamping component. This prevents the clamping component from rubbing against the solder strips on the battery cells during its movement, which could cause the solder strips to shift. Once the clamping component is in place, the fifth drive component lowers the clamping component and the storage component, making it easier for the force application component to press the clamping component down onto the solder strip assembly, thus ensuring the stable operation of the positioning mechanism.

[0018] In some embodiments, the clamping member is a measuring tape, and both sides of the clamping member are bent upwards along their length.

[0019] By using a measuring tape as a clamping element, the clamping element of the delivery and storage assembly will automatically remain straight, preventing it from scraping the welding strips before it is in place. Applying downward force to the upward-curving sides of the clamping element will also keep it straight, allowing it to press the welding strips firmly.

[0020] In some embodiments, the force-applying component includes a pressure plate, a clamping member, a pad, a spring, and a sixth driving member, wherein: The storage component and the pressure plate are located on both sides of the bearing component. The end of the clamping member delivered by the storage component extends onto the pressure plate. The pad and the spring are disposed on the pressure plate. The pad is used to support the end of the clamping member. The pressure plate is provided with a receiving groove for the pad to fit and insert. The spring is located in the receiving groove, and the two ends of the spring abut against the bottom of the pad and the bottom of the receiving groove, respectively. The sixth driving member is used to drive the clamping member to move downward and press the end of the pressing member onto the pad.

[0021] After the end of the clamping member extends to the pressure plate, the sixth drive component moves the clamping member downwards to cooperate with the storage component to tighten the clamping member, thereby enabling the clamping member to press the welding strip onto the battery cell, and keeping the clamping member and the carrier component relatively fixed. After the battery string welding is completed, the sixth drive component lifts the clamping member, thus releasing the restriction on the clamping member, and the storage component can retract the clamping member. The force-applying component and the storage component are located on both sides of the carrier component and on the sliding seat, and the force-applying component does not occupy additional space.

[0022] In some embodiments, the battery string production equipment further includes a coating mechanism, the coating mechanism comprising a seventh drive member, a frame, and a plurality of adsorption plates, wherein: Multiple adsorption plates are sequentially mounted on the frame along the first direction. Each adsorption plate is used to hold a film. An avoidance groove is provided on the adsorption surface of the adsorption plate to avoid the clamping member. The seventh driving component is used to drive the frame to slide horizontally and lift vertically, so as to attach the suction films to the upper surface of each battery cell on the carrier assembly.

[0023] When it is necessary to coat the surface of the battery string, the welding ribbon group can be pressed onto the battery cell group by the clamping component first. Then, the seventh drive component drives multiple adsorption plates to pick up the corresponding film from the feeding position. The seventh drive component then drives the adsorption plates and film to move above the carrier component. The seventh drive component drives the adsorption plates to place the film on the upper surface of the welding ribbon group and the battery cell group. The clearance grooves on the adsorption plates allow the film and the clamping component to deform and snap into place, so that the other parts of each film can be attached to each battery cell. Then, the storage component retracts the clamping component, and the welding ribbon continues to remain relatively stationary with the battery cell under the constraint of the film.

[0024] In some embodiments, the battery string production equipment further includes a guide assembly, which includes a sliding frame, a traction head, and a third drive member. The sliding frame is slidably disposed along the second direction, the traction head is fixed on the sliding frame, and the end of the clamping member extending out of the storage assembly has a through hole for the traction head to be inserted. The third drive member is used to drive the sliding frame to slide along the second direction to cooperate with the storage assembly to drive the clamping member to extend straight out of the storage assembly.

[0025] The traction head and the storage component work together to keep the clamping part under tension during the extension process, ensuring that the clamping part will not rub against the welding strip and that the clamping part can be accurately moved to the designated position.

[0026] In some embodiments, the battery string production equipment further includes a conveying mechanism, the conveying mechanism comprising a support, a plurality of clamping assemblies, and a fourth drive member, wherein: Multiple clamping components are spaced apart on the bracket, and the multiple clamping components are used to clamp each welding strip in the welding strip group. The fourth driving member is used to drive the bracket to move horizontally and move vertically along the second direction. The sliding frame is slidably mounted on the bracket, and the third driving component is disposed on the bracket. The third driving component includes a second rotating shaft, a driving wheel, a driven wheel, a belt, and a second motor. The driving wheel is mounted on the second rotating shaft, and the belt is mounted on the driving wheel and the driven wheel. The sliding frame is fixedly connected to the belt. The second motor is used to drive the second rotating shaft to rotate so as to drive the sliding frame to slide horizontally along the second direction.

[0027] By integrating the guide assembly into the handling mechanism, the guide assembly does not occupy additional space. After the handling mechanism lays the welding strip onto the cell assembly, the traction head of the guide assembly can also be inserted into the through hole at the end of the clamping member located at the discharge end of the receiving assembly, realizing the docking of the traction head and the clamping member. Subsequently, the traction head slides horizontally under the drive of the third drive component. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the conveying mechanism in the embodiments of this application; Figure 2 This is a schematic diagram showing the positional relationship between the positioning mechanism and the supporting component in the embodiments of this application; Figure 3 This is a cross-sectional schematic diagram of the storage component in an embodiment of this application; Figure 4 This is a schematic diagram of the specific structure of the positioning mechanism in the embodiments of this application; Figure 5 This is a schematic diagram of the coating mechanism in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the guide component in the embodiments of this application; Figure 7 This is a schematic diagram of the transport mechanism in the embodiments of this application.

[0029] Figures 1 to 7 Includes: 1. Conveying mechanism; 11. Sliding seat; 12. Bearing assembly; 121. Adsorption hole; 2. Positioning mechanism; 21. Storage assembly; 211. Box body; 212. Rotating wheel; 213. Discharge port; 214. Screw; 22. Clamping component; 23. Force-applying component; 24. Support base; 25. First rotating shaft; 26. Second driving component; 27. Lifting frame; 281. Gear; 282. Rack; 283. First motor; 3. Cover Membrane mechanism; 31. Seventh drive component; 32. Frame; 33. Adsorption plate; 34. Clearance groove; 4. Transport mechanism; 41. Guide assembly; 411. Sliding frame; 412. Traction head; 42. Third drive component; 421. Second rotating shaft; 422. Belt; 423. Drive wheel; 424. Driven wheel; 425. Second motor; 43. Support; 44. Clamping assembly; 5. Battery cell; X, First direction; Y, Second direction. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] A battery string production device, such as Figure 1 As shown, the battery string production equipment includes a conveying mechanism 1 and a positioning mechanism 2. The conveying mechanism 1 includes a sliding seat 11, a bearing component 12 and a first driving component. The first driving component is used to drive the sliding seat 11 to slide horizontally back and forth along the first direction X. The bearing component 12 is disposed on the sliding seat 11 and has a bearing surface for receiving the battery cell pack. The welding ribbon is laid on the battery cell pack on the bearing surface of the bearing component 12.

[0032] like Figure 1 and Figure 2 As shown, the positioning mechanism 2 includes a receiving component 21, a clamping member 22, and a force-applying member 23. The receiving component 21 is disposed on the sliding seat 11 and located outside the bearing component 12. The clamping member 22 is a long strip of metal sheet, which is wound inside the receiving cavity of the receiving component 21. The receiving component 21 is used to deliver the clamping member 22 along the second direction Y to above the welding strip group on the bearing component 12. The receiving component 21 is also used to retract the clamping member 22 located on the welding strip group into the receiving cavity. The second direction Y is perpendicular to the first direction X on the horizontal plane. The force-applying member 23 is used to cooperate with the receiving component 21 to press the clamping member 22 downward to press the welding strip group.

[0033] This application uses a receiving component 21 fixed on the conveying mechanism 1 to deliver a long strip-shaped clamping member 22, and a force-applying component 23 to press the welding strip group onto the battery cell group on the conveying mechanism 1. The positioning mechanism 2 moves synchronously with the sliding seat 11, ensuring that the welding strip group and the battery cell group remain relatively stationary during movement. The positioning mechanism 2 of this application is directly set on the sliding seat 11 of the conveying mechanism 1, which does not occupy additional space while achieving the clamping of the battery string, allowing the battery string production equipment to install other functional components. After the battery string welding is completed, the receiving component 21 directly retracts the clamping member 22. The receiving component 21 is used to pick up and deliver the clamping member 22, and there is no need to set up additional components to circulate and move the clamping member 22, which improves the configuration flexibility of the battery string production equipment.

[0034] This application involves slidably mounting a sliding seat 11 onto a slide rail via a slider. The slide rail is horizontally mounted on the base of the battery string production equipment along a first direction X. The first driving component is a combination of a belt 422 pulley assembly and a servo motor. The sliding seat 11 is fixedly connected to the belt 422 of the belt 422 pulley assembly via a connector. The servo motor drives the belt 422 of the belt 422 pulley assembly to slide, thereby achieving horizontal sliding of the sliding seat 11 along the first direction X. The first driving component is a conventional driving module, and even if it is not shown in the schematic diagram, it will not affect the understanding of those skilled in the art.

[0035] The carrier component 12 in this application adopts a conventional structure in the art. The carrier component 12 generally uses negative pressure adsorption to hold and fix the battery cell 5 to its bearing surface, so that the battery cell 5 will not shift relative to the carrier component 12 when it slides forward with it. Figure 2 As shown, the bearing surface of the bearing component 12 is provided with multiple rows of adsorption holes 121 for adsorbing the battery cell 5.

[0036] In some embodiments, such as Figure 2As shown, the positioning mechanism 2 also includes a support base 24, a first rotating shaft 25, and a second driving member 26. The support base 24 is disposed on one side of the sliding seat 11. The first rotating shaft 25 is rotatably mounted on the support base 24. The second driving member 26 is used to drive the first rotating shaft 25 to rotate along its own axis. The storage assembly 21 includes a box body 211 and a rotating wheel 212. The rotating wheel 212 is sleeved on the first rotating shaft 25. The first end of the clamping member 22 is fixed on the rotating wheel 212, and the clamping member 22 is wound around the rotating wheel 212. The box body 211 is mounted on the support base 24. The first rotating shaft 25 passes through the box body 211. The rotating wheel 212 is located in the inner cavity of the box body 211. There is a storage cavity for accommodating the clamping member 22 between the rotating wheel 212 and the inner wall of the inner cavity of the box body 211. The side of the box body 211 facing the bearing assembly 12 has an outlet 213 for the second end of the clamping member 22 to extend out.

[0037] The clamping component 22 is stored in the storage cavity formed by the box 211 and the rotating wheel 212. The rotating wheel 212 is driven to rotate by the first rotating shaft 25 to send out and retract the clamping component 22, thus realizing the rapid sending out and retraction of the clamping component 22. Furthermore, the box 211 of the storage component 21 is set outside one side of the sliding seat 11 by the support base 24, without occupying additional space without affecting the normal operation of the sliding seat 11.

[0038] It should be noted that, for ease of understanding, Figure 2 The leftmost box 211 conceals the right half of the shell, allowing the rotating wheel 212 inside the box 211 and the clamping element 22 wound around the rotating wheel 212 to be clearly seen. The box 211 normally appears as follows... Figure 2 The shape of the other boxes 211 confines the rotating wheel 212 within the box 211. Of course, without affecting the normal operation of the rotating wheel 212 and the clamping member 22, the rotating wheel 212 and the clamping member 22 can also be exposed to facilitate manual maintenance.

[0039] In some embodiments, such as Figure 1 and Figure 2 As shown, multiple storage components 21 are provided, each storage component 21 contains one clamping member 22, and every two storage components 21 correspond to one battery cell 5. Each solder strip on each battery cell 5 is clamped to the corresponding battery cell 5 by two clamping members 22, ensuring that the solder strip group and the battery cell 5 are relatively stationary. Furthermore, each storage component 21 is driven by the first rotating shaft 25 of the positioning mechanism 2, which realizes the synchronous operation of each clamping member 22 and reduces equipment costs.

[0040] In some embodiments, such as Figure 3As shown, when the second end of the clamping member 22 is located at the discharge port 213 of the box body 211, the clamping member 22 wound on the rotating wheel 212 abuts against the inner wall of the box body 211. By limiting the size of the receiving cavity formed by the box body 211 and the rotating wheel 212, it is ensured that the clamping member 22 is always in a taut state during the retraction and delivery process, avoiding the situation where the rotating wheel 212 spins idly and the clamping member 22 does not move, thus ensuring the stable movement of the clamping member 22.

[0041] In some embodiments, such as Figure 3 As shown, a clearance step is provided on the outer wall of the rotating wheel 212. The distance from the clearance step to the center of the rotating wheel 212 is less than the outer diameter of the rotating wheel 212. The first end of the clamping member 22 is fixed to the clearance step by a screw 214. By fixing the first end of the clamping member 22 to the clearance step by a screw 214, the clamping member 22 can be wound in a regular spiral shape on the rotating wheel 212, ensuring that the clamping member 22 can be delivered stably and uniformly. This facilitates the prediction and planning of the movement path of the clamping member 22 and improves the movement accuracy of the clamping member 22.

[0042] In some embodiments, such as Figure 2 As shown, the force-applying component 23 is a permanent magnet. The force-applying component 23 is embedded on the bearing surface of the bearing assembly 12. The force-applying component 23 is located directly below the extension path of the clamping component 22. The force-applying component 23 uses magnetism to attract the clamping component 22 downward, so that the clamping component 22 presses the welding strip group onto the battery cell group.

[0043] The permanent magnet pulls the clamping member 22, which extends above the bearing surface of the bearing component 12, downward, causing the clamping member 22 to press the welding strip group downward onto the battery cell group, thus achieving relative fixation between the welding strip group and the battery cell group. The permanent magnet is directly embedded in the bearing component 12, and the permanent magnet does not occupy additional space, further reducing the footprint of the positioning mechanism 2.

[0044] In some embodiments, such as Figure 4 As shown, the positioning mechanism 2 also includes a lifting frame 27 and a fifth driving component. The storage assembly 21 is mounted on the lifting frame 27, which is vertically and vertically mounted on the sliding seat 11. The fifth driving component includes a gear 281, a rack 282, and a first motor 283. The first motor 283 is mounted on the sliding seat 11 and drives the gear 281 to rotate. The rack 282 is mounted on the lifting frame 27, and the rack 282 meshes with the gear 281. The first motor 283 drives the gear 281 to rotate, causing the rack 282 to rise and fall relative to the gear 281, thereby achieving the lifting and lowering of the lifting frame 27 relative to the sliding seat 11.

[0045] After the storage component 21 is lifted by the fifth driving component, the storage component 21 then sends out the clamping component 22. This prevents the clamping component 22 from rubbing against the solder strip on the battery cell 5 during its movement, which would cause the solder strip to shift. After the clamping component 22 moves into place, the fifth driving component lowers the clamping component 22 and the storage component 21, so that the force application component 23 can press the clamping component 22 down onto the solder strip group, thus ensuring the stable operation of the positioning mechanism 2.

[0046] Specifically, when the force-applying component 23 is a permanent magnet, the fifth driving component can first raise the housing component 21 to a high position. When the housing component 21 sends out the clamping component 22, the clamping component 22 is far from the force-applying component 23 on the bearing component 12. The magnetic force applied by the force-applying component 23 to the clamping component 22 is small, preventing the clamping component 22 from directly adhering to the battery cell 5 and the solder ribbon on the bearing component 12. Therefore, the clamping component 22 can move to the predetermined position. Subsequently, the fifth driving component lowers the clamping component 22 and the housing component 21 to a low position. Under the magnetic force of the force-applying component 23, the clamping component 22 presses against the corresponding battery cell 5 and solder ribbon, thereby pressing the solder ribbon onto the battery cell 5 and achieving pre-fixation of the solder ribbon. This prevents the force-applying component 23 from interfering with the sending out action of the clamping component 22.

[0047] Specifically, when each storage component 21 is set outside one side of the sliding seat 11 via the support base 24, the lifting frame 27 consists of multiple horizontal support arms passing through the side plate of the sliding seat 11. The lifting frame 27 is fixedly connected to the bottom of the support base 24. The lifting frame 27 itself is vertically slidably mounted on the sliding seat 11 via a sliding pair. The slider can be fixed on the bottom plate of the sliding seat 11, and the slide rail is mounted on each support arm of the lifting frame 27. The slider can slide on the slide rail, thereby realizing the vertical lifting of the lifting frame 27 through the fifth driving component.

[0048] In some embodiments, the clamping member 22 is a measuring tape, with both sides of the clamping member 22 bent upwards along its length. By selecting a measuring tape as the clamping member 22, the clamping member 22 will automatically remain straight when the receiving assembly 21 is being delivered, preventing the clamping member 22 from scraping against the welding strips before it is in place. Applying downward force to the upward-bent sides of the clamping member 22 can also keep the clamping member 22 straight, allowing it to clamp each welding strip.

[0049] In some embodiments, the force-applying component 23 includes a pressure plate, a clamping member, a pad, a spring, and a sixth driving member. The receiving assembly 21 and the pressure plate are located on opposite sides of the bearing assembly 12. The end of the clamping member 22 delivered by the receiving assembly 21 extends onto the pressure plate. The pad and the spring are disposed on the pressure plate. The pad is used to support the end of the clamping member 22. A receiving groove is provided on the pressure plate for the pad to be inserted into. The spring is located in the receiving groove, and its two ends abut against the bottom of the pad and the bottom of the receiving groove, respectively. The sixth driving member is used to drive the clamping member to move downward and press the end of the clamping member 22 against the pad.

[0050] After the end of the clamping member 22 extends to the pressure plate, the sixth drive member drives the clamping member to move downward to cooperate with the storage assembly 21 to tighten the clamping member 22, thereby enabling the clamping member 22 to press the welding strip onto the battery cell 5, and keeping the clamping member 22 and the carrier assembly 12 relatively fixed. After the battery string welding is completed, the sixth drive member lifts the clamping member, which releases the restriction on the clamping member 22, and the storage assembly 21 can retract the clamping member 22. The force-applying member 23 and the storage assembly 21 are located on both sides of the carrier assembly 12 and on the sliding seat 11, and the force-applying member 23 does not occupy additional space.

[0051] In some embodiments, such as Figure 5 As shown, the battery string production equipment also includes a coating mechanism 3. The coating mechanism 3 includes a seventh drive component 31, a frame 32, and multiple adsorption plates 33. The multiple adsorption plates 33 are sequentially installed on the frame 32 along the first direction X. Each adsorption plate 33 is used to hold a film. The adsorption surface of the adsorption plate 33 is provided with a clearance groove 34 to avoid the pressing component 22. The seventh drive component 31 is used to drive the frame 32 to slide horizontally and lift vertically so as to attach each adsorbed film to the upper surface of each battery cell 5 on the carrier assembly 12.

[0052] When it is necessary to coat the surface of the battery string, the welding ribbon group can be pressed onto the battery cell group by the clamping member 22 first. Then, the seventh drive member 31 drives multiple adsorption plates 33 to pick up the corresponding film from the feeding position. The seventh drive member 31 then drives the adsorption plates 33 and the film to move above the carrier component 12. The seventh drive member 31 drives the adsorption plates 33 to place the film on the upper surface of the welding ribbon group and the battery cell group. The clearance grooves 34 on the adsorption plates 33 allow the film and the clamping member 22 to deform and snap into place, so that the other parts of each film can be attached to each battery cell 5. Then, the receiving component 21 retracts the clamping member 22, and the welding ribbon continues to remain relatively stationary with the battery cell 5 under the constraint of the film. The seventh drive member 31 also adopts a conventional drive module in the art, such as a combination of linear module, servo motor and pulley assembly, which only needs to be able to drive each adsorption plate 33 to move vertically and horizontally synchronously.

[0053] In some embodiments, such as Figure 6As shown, the battery string production equipment also includes a guide assembly 41, which includes a sliding frame 411, a traction head 412, and a third drive member 42. The sliding frame 411 is slidably arranged along the second direction Y and can be located above the bearing assembly 12. The traction head 412 is fixed on the sliding frame 411. The end of the clamping member 22 that extends out of the receiving assembly 21 has a through hole for the traction head 412 to be inserted. The third drive member 42 is used to drive the sliding frame 411 to slide along the second direction Y, so as to cooperate with the receiving assembly 21 to drive the clamping member 22 to extend straight out of the receiving assembly 21.

[0054] When the clamping member 22 is made of a flexible steel strip or other magnetically adsorbable metal strip, since the clamping member 22 is suspended above the battery cell 5 and the welding strip when it is delivered, the clamping member 22 will droop downward due to its own weight. At this time, the clamping member 22 can be kept in a tensioned state during the extension process by the cooperation of the traction head 412 and the storage component 21, so that the clamping member 22 will not scratch the welding strip and the clamping member 22 can be accurately moved to the designated position.

[0055] Specifically, after the traction head 412 is inserted into the through hole at the end of the clamping member 22, the moving speed of the traction head 412 along the second direction Y is slightly greater than the speed at which the receiving component 21 sends out the clamping member 22, so that the clamping member 22 is in a state of being pulled forward by the traction head 412. Therefore, the clamping member 22 can be kept in a tensioned state during the extension process, ensuring that the clamping member 22 can extend straight to the predetermined position and avoiding the flexible clamping member 22 from rubbing against the welding strip.

[0056] In some embodiments, such as Figure 6 and Figure 7 As shown, the battery string production equipment also includes a conveying mechanism 4, which includes a support 43, multiple clamping assemblies 44, and a fourth driving component, wherein: Multiple clamping components 44 are spaced apart on the bracket 43. The multiple clamping components 44 are used to clamp each welding strip in the welding strip group. The fourth driving component is used to drive the bracket 43 to move horizontally and vertically along the second direction Y. The sliding frame 411 is slidably mounted on the bracket 43. The third driving component 42 is mounted on the bracket 43. The third driving component 42 includes a second rotating shaft 421, a driving wheel 423, a driven wheel 424, a belt 422, and a second motor 425. The driving wheel 423 is mounted on the second rotating shaft 421. The belt 422 is mounted on the driving wheel 423 and the driven wheel 424. The sliding frame 411 is fixedly connected to the belt 422. The second motor 425 is used to drive the second rotating shaft 421 to rotate so that the sliding frame 411 slides horizontally along the second direction Y.

[0057] By integrating the guide assembly 41 into the conveying mechanism 4, the guide assembly 41 does not occupy additional space. After the conveying mechanism 4 lays the welding strip group onto the battery cell group, the traction head 412 of the guide assembly 41 can also be inserted into the through hole at the end of the clamping member 22 located at the discharge end of the receiving assembly 21, so as to realize the docking of the traction head 412 and the clamping member 22. Then, the traction head 412 slides horizontally under the drive of the third drive member 42.

[0058] In addition, after the conveying mechanism 4 lays the welding strip group onto the battery cell group, each clamping component 44 of the conveying mechanism 4 will still clamp the corresponding welding strip. Only after the clamping member 22 presses the welding strip will the clamping component 44 release the clamping action on the welding strip, ensuring that the welding strip is always in a fixed state, further ensuring the accurate relative position of the welding strip and the battery cell, and avoiding the welding strip shifting when the clamping member 22 presses down on the welding strip.

[0059] In some embodiments, each sliding frame 411 is equipped with two traction heads 412. The number of sliding frames 411 is the same as the number of battery cells 5. The two traction heads 412 of each sliding frame 411 correspond to two clamping members 22. Each sliding frame 411 has a corresponding set of driving wheel 423, driven wheel 424 and belt 422. The driving wheel 423 of each sliding frame 411 is spaced apart and mounted on the second rotating shaft 421. The second motor 425 can drive each sliding frame 411 to slide synchronously, thereby realizing the synchronous sliding of each traction head 412.

[0060] Each sliding frame 411 in this application has a set of clamping components 44 on both sides. These two sets of clamping components 44 work together to clamp a group of welding strips. Multiple sets of clamping components 44 work together to achieve synchronous clamping and release of each welding strip. The handling mechanism 4 of this application is based on the applicant's existing equipment with the addition of a guide component 41. Therefore, the main structure of the handling mechanism 4 is a conventional technical means that is easily obtained by those skilled in the art, and will not be described in detail here.

[0061] In some embodiments, each sliding frame 411 is also provided with multiple elastic pressure pins at its bottom, with each elastic pressure pin corresponding to a welding strip. After the conveying mechanism 4 places the welding strip group onto the battery cell group of the carrying component 12, the elastic pressure pins will press the welding strip onto the battery cell 5, preventing the welding strip from shifting due to machine vibration during the process of the guide component 41's traction head 412 driving the clamping member 22 to extend, further ensuring the accurate relative position of the welding strip and battery cell 5 in the battery string.

[0062] Specifically, in some embodiments of this application, the working process is as follows: First, the first driving member drives the sliding seat 11 to move to the stringing station. The cell 5 transporting component transports the cells 5 required for a string of cells and lays them on the bearing surface of the bearing component 12 of the sliding seat 11. The transporting mechanism 4 transports the clamped welding ribbon group to the bearing component 12 of the sliding seat 11 and lays it on each cell 5 according to the stringing rules of the battery string, so that each welding ribbon is located on the grid line of the corresponding cell 5.

[0063] Secondly, the traction head 412 of the guide assembly 41 moves to the discharge port 213 of the receiving assembly 21 under the drive of the third drive member 42, with each traction head 412 positioned directly above the end through hole of the corresponding clamping member 22. The fifth drive member drives each receiving assembly 21 to rise synchronously, so that the end through hole of each clamping member 22 fits over the corresponding traction head 412. The third drive member 42 and the second drive member 26 work together to extend the clamping member 22 out of the receiving assembly 21 under the pull of the traction head 412 and the push of the receiving assembly 21, and the clamping member 22 remains taut during the extension process.

[0064] Subsequently, once the clamping member 22 extends into position, the fifth drive component drives each storage component 21 to descend synchronously. Under the magnetic force of the force-applying component 23 embedded in the bearing component 12, each clamping member 22 adheres to its corresponding welding strip, thereby pressing the welding strip onto the corresponding battery cell 5. At this time, the traction head 412 will naturally disengage from the through hole at the end of the clamping member 22, and the conveying mechanism 4 can return to the welding strip processing mechanism to pick up the next set of welding strips.

[0065] Next, the first driving component moves the sliding seat 11 from the string assembly station to the curing station. The battery string production equipment of this application can be equipped with a conventional heating lamp box at the curing station to cure the solder ribbon and the grid lines of the battery cell 5 together. Subsequently, the second driving component 26 of the positioning mechanism 2 rotates in the opposite direction, which can retract each clamping component 22 into the corresponding storage component 21. Since the solder ribbon has been cured on the battery cell 5 at this time, the friction of the clamping component 22 on the solder ribbon will not cause the solder ribbon to shift.

[0066] Finally, the first driving component moves the sliding seat 11 from the curing station to the unloading station, waiting for the next process's transport component to remove the cured battery string. Then, the first driving component can drive the sliding seat 11 back to the string assembly station to receive the components of the next set of battery strings.

[0067] Specifically, in some embodiments of this application, the solder ribbon can be fixed to the surface of the battery cell 5 using a film, and the specific working process is as follows: First, the first driving member drives the sliding seat 11 to move to the stringing station. The cell 5 transporting component transports the cells 5 required for a string of cells and lays them on the bearing surface of the bearing component 12 of the sliding seat 11. The transporting mechanism 4 transports the clamped welding ribbon group to the bearing component 12 of the sliding seat 11 and lays it on each cell 5 according to the stringing rules of the battery string, so that each welding ribbon is located on the grid line of the corresponding cell 5.

[0068] Secondly, the traction head 412 of the guide assembly 41 moves to the discharge port 213 of the receiving assembly 21 under the drive of the third drive member 42, with each traction head 412 positioned directly above the end through hole of the corresponding clamping member 22. The fifth drive member drives each receiving assembly 21 to rise synchronously, so that the end through hole of each clamping member 22 fits over the corresponding traction head 412. The third drive member 42 and the second drive member 26 work together to extend the clamping member 22 out of the receiving assembly 21 under the pull of the traction head 412 and the push of the receiving assembly 21, and the clamping member 22 remains taut during the extension process.

[0069] Subsequently, once the clamping member 22 extends into position, the fifth drive component drives each storage component 21 to descend synchronously. Under the magnetic force of the force-applying component 23 embedded in the bearing component 12, each clamping member 22 adheres to its corresponding welding strip, thereby pressing the welding strip onto the corresponding battery cell 5. At this time, the traction head 412 will naturally disengage from the through hole at the end of the clamping member 22, and the conveying mechanism 4 can return to the welding strip processing mechanism to pick up the next set of welding strips.

[0070] Next, the first driving component moves the sliding seat 11 from the string assembly station to the curing station. The coating mechanism 3 applies the various films it has attracted onto the battery string on the carrier assembly 12. The clearance grooves 34 on the adsorption plate 33 of the coating mechanism 3 are located above each corresponding clamping member 22, so that the other parts of the adsorption plate 33 can press the film firmly onto the upper surface of the battery cell 5 and the solder ribbon. The receiving assembly 21 then retracts the clamping members 22. This application can heat-melt and fix the film onto the surface of the battery string by heating each adsorption plate 33 of the coating mechanism 3, thereby restricting the movement space of the solder ribbon and achieving relative fixation between the solder ribbon and the battery cell 5.

[0071] Finally, the first driving component moves the sliding seat 11 from the curing station to the unloading station, waiting for the next process's transport component to remove the cured battery string. Then, the first driving component can drive the sliding seat 11 back to the string assembly station to receive the components of the next set of battery strings.

[0072] The foregoing has provided a sufficiently detailed and specific description of this application. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. The scope of protection claimed in this application is defined by the claims, not by the above descriptions in the embodiments. Furthermore, the embodiments mentioned in this application are not limited to a single implementation; some embodiments can also be combined.

Claims

1. A battery string production device, characterized in that, The battery string production equipment includes a conveying mechanism and a positioning mechanism, wherein: The conveying mechanism includes a sliding seat, a bearing assembly, and a first driving member. The first driving member is used to drive the sliding seat to slide horizontally back and forth along a first direction. The bearing assembly is disposed on the sliding seat and has a bearing surface for receiving the battery cell pack. The welding ribbon is laid on the battery cell pack on the bearing surface of the bearing assembly. The positioning mechanism includes a storage component, a clamping component, and a force-applying component. The storage component is disposed on the sliding seat and located outside the bearing component. The clamping component is a long strip of metal sheet. The clamping component is wound inside the storage cavity of the storage component. The storage component is used to deliver the clamping component to the top of the welding strip group on the bearing component along a second direction. The second direction is perpendicular to the first direction on a horizontal plane. The force-applying component is used in conjunction with the storage assembly to press the clamping member downwards to press the welding strip assembly; The storage assembly is also used to retract the clamping element located on the welding strip assembly into the storage cavity.

2. The battery string production equipment according to claim 1, characterized in that, The positioning mechanism further includes a support base, a first rotating shaft, and a second driving component, wherein: The support base is disposed on one side of the sliding seat, the first rotating shaft is rotatably mounted on the support base, and the second driving member is used to drive the first rotating shaft to rotate along its own axis. The storage assembly includes a box body and a rotating wheel. The rotating wheel is sleeved on the first rotating shaft. The first end of the clamping member is fixed on the rotating wheel, and the clamping member is wound around the rotating wheel. The box body is mounted on the support base, the first rotating shaft passes through the box body, the rotating wheel is located in the inner cavity of the box body, there is a storage cavity for accommodating the clamping member between the rotating wheel and the inner wall of the inner cavity of the box body, and the box body has an outlet port for the second end of the clamping member to extend out on the side facing the bearing assembly.

3. The battery string production equipment according to claim 2, characterized in that, When the second end of the clamping member is located at the discharge port of the box, the clamping member wound on the rotating wheel abuts against the inner wall of the box.

4. The battery string production equipment according to claim 3, characterized in that, A clearance step is provided on the outer side wall of the rotating wheel. The distance from the clearance step to the center of the rotating wheel is less than the outer diameter of the rotating wheel. The first end of the clamping member is fixed to the clearance step by screws.

5. The battery string production equipment according to claim 2, characterized in that, The storage components are provided in multiple ways. Each storage component contains a clamping member. Every two storage components correspond to one battery cell. Each solder strip on each battery cell is clamped to the corresponding battery cell by two clamping members.

6. The battery string production equipment according to claim 1, characterized in that, The force-applying component is a permanent magnet. The force-applying component is embedded on the bearing surface of the bearing assembly. The force-applying component is located directly below the extension path of the clamping member. The force-applying component uses magnetism to attract the clamping member downwards, so that the clamping member presses the welding strip group onto the battery cell group.

7. The battery string production equipment according to claim 1, characterized in that, The positioning mechanism further includes a lifting frame and a fifth driving component. The storage component is mounted on the lifting frame, which is vertically and vertically mounted on the sliding seat. The fifth driving component includes a gear, a rack, and a first motor. The first motor is mounted on the sliding seat and is used to drive the gear to rotate. The rack is mounted on the lifting frame, and the rack meshes with the gear.

8. The battery string production equipment according to claim 1, characterized in that, The clamping component is a measuring tape, and both sides of the clamping component are bent upwards along their length.

9. The battery string production equipment according to claim 1, characterized in that, The force-applying components include a pressure plate, a clamping element, a pad, a spring, and a sixth driving element, wherein: The storage component and the pressure plate are located on both sides of the bearing component. The end of the clamping member delivered by the storage component extends onto the pressure plate. The pad and the spring are disposed on the pressure plate. The pad is used to support the end of the clamping member. The pressure plate is provided with a receiving groove for the pad to fit and insert. The spring is located in the receiving groove, and the two ends of the spring abut against the bottom of the pad and the bottom of the receiving groove, respectively. The sixth driving member is used to drive the clamping member to move downward and press the end of the pressing member onto the pad.

10. The battery string production equipment according to claim 1, characterized in that, The battery string production equipment also includes a coating mechanism, which comprises a seventh drive component, a frame, and multiple adsorption plates, wherein: Multiple adsorption plates are sequentially mounted on the frame along the first direction. Each adsorption plate is used to hold a film. An avoidance groove is provided on the adsorption surface of the adsorption plate to avoid the clamping member. The seventh driving component is used to drive the frame to slide horizontally and lift vertically, so as to attach the suction films to the upper surface of each battery cell on the carrier assembly.

11. The battery string production equipment according to any one of claims 1-10, characterized in that, The battery string production equipment also includes a guide assembly, which includes a sliding frame, a traction head, and a third drive component. The sliding frame is slidably arranged along the second direction, and the traction head is fixed on the sliding frame. The end of the clamping component extending out of the storage assembly has a through hole for the traction head to be inserted. The third drive component is used to drive the sliding frame to slide along the second direction, so as to cooperate with the storage assembly to drive the clamping component to extend straight out of the storage assembly.

12. The battery string production equipment according to claim 11, characterized in that, The battery string production equipment also includes a conveying mechanism, which comprises a support, multiple clamping assemblies, and a fourth driving component, wherein: Multiple clamping components are spaced apart on the bracket, and the multiple clamping components are used to clamp each welding strip in the welding strip group. The fourth driving member is used to drive the bracket to move horizontally and vertically along the second direction. The sliding frame is slidably mounted on the bracket, and the third driving component is disposed on the bracket. The third driving component includes a second rotating shaft, a driving wheel, a driven wheel, a belt, and a second motor. The driving wheel is mounted on the second rotating shaft, and the belt is mounted on the driving wheel and the driven wheel. The sliding frame is fixedly connected to the belt. The second motor is used to drive the second rotating shaft to rotate so as to drive the sliding frame to slide horizontally along the second direction.

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