Battery tab assembling auxiliary mechanism and tab inserting method

Abstract

The invention relates to a battery tab assembling auxiliary mechanism and a tab inserting method, the battery tab assembling auxiliary mechanism comprises at least one pair of fixing frames, each fixing frame is provided with a track, a movable part is inserted into the track, the movable part comprises a body and a plurality of comb teeth which are connected with each other, the body is movably inserted into the track, the comb teeth are arranged at intervals, and the comb teeth are inserted into the track. And a tab insertion gap is formed between every two adjacent comb teeth. The movable pieces are inserted into the two sides of the tabs, the tabs are inserted into the tab insertion gaps of the movable pieces, the tabs are corrected, in the process that the CVP is inserted into the tabs, the CVP makes contact with the pair of movable pieces, the two movable pieces are pushed to move in the opposite directions, alignment of the CVP and the tabs in the insertion process is achieved, the tab insertion efficiency is improved, and the insertion failure rate is reduced. The technical problems that in the prior art, the manual tab plugging efficiency is low, the requirement of the CVP for the installation tolerance of the tab in the plugging process is high, the deformation degree cannot be accurately controlled through manual operation, and the plugging failure rate is high are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery processing, in particular to a battery tab assembly auxiliary mechanism and a tab insertion method. BACKGROUND

[0002] At present, in the assembly process of a hydrogen fuel cell stack, the insertion accuracy of a tab directly determines the conductivity and structural stability of the stack. The tab is usually punched from a bipolar plate material with a thickness of only 0.15-0.2 mm. In the actual insertion process, the tab is prone to deformation and is difficult to reuse.

[0003] In the related art, tab insertion mainly relies on manual leveling and experience operation. In the manual leveling process, the operator needs to repeatedly disassemble and adjust the deformed tab, which is low in efficiency. In the insertion process, the installation tolerance of CVP (connection terminal) on the tab is relatively high, and manual operation cannot accurately control the deformation degree, resulting in a high failure rate of insertion.

[0004] Therefore, it is necessary to design a battery tab assembly auxiliary mechanism to overcome the above problems. SUMMARY

[0005] The application provides a battery tab assembly auxiliary mechanism and a tab insertion method, which can solve the technical problems in the related art that tab insertion mainly relies on manual leveling and experience operation, the operator needs to repeatedly disassemble and adjust the deformed tab in the manual leveling process, which is low in efficiency, the installation tolerance of CVP on the tab is relatively high in the insertion process, and manual operation cannot accurately control the deformation degree, resulting in a high failure rate of insertion.

[0006] In a first aspect, the application provides a battery tab assembly auxiliary mechanism, which comprises at least one pair of fixing frames, each of the fixing frames is provided with a track, and a movable piece is inserted into the track, the movable piece comprises a body and a plurality of comb teeth connected to each other, the body is movably inserted into the track, and a plurality of comb teeth are arranged at intervals, and a tab insertion gap is formed between adjacent two comb teeth.

[0007] The battery box frame comprises two reinforcing ribs arranged at intervals, at least one pair of fixing frames are fixed between the two reinforcing ribs, a tab is arranged at the middle position between the two reinforcing ribs, the movable piece is arranged on both sides of the tab, at least one pair of movable pieces slide in the direction of approaching each other or in the direction of moving away from each other along the track, a plurality of CVPs can be processed at a time according to actual production needs, the number of the fixing frames and the movable pieces is set to 1:1, a plurality of comb teeth are inserted into the tab gap, the thickness of the movable piece is greater than the thickness of the tab, and the maximum offset of the tab allowed by the CVP is 0.6 mm. The tab insertion gap is set to 1.6 1.8 When the plurality of the combs are fully inserted into the tab, the deformed tab is corrected to be within the tolerance range allowed by the CVP, improving the efficiency of the tab insertion. During the insertion of the tab by the CVP, the CVP is in contact with a pair of the movable members and pushes the two movable members to move in opposite directions, achieving the alignment of the CVP and the tab during the insertion, avoiding the failure of the insertion caused by the inaccurate control of the deformation degree by manual operation.

[0008] In combination with the first aspect, in an embodiment, the comb is triangular, and a first inclined surface is arranged on the side of the comb away from the fixed frame, and the first inclined surface is used to contact a second inclined surface of the CVP. In the embodiment, the movable member is a triangular column with a comb structure, the body is a solid part, the inclination direction of the second inclined surface on the left side of the CVP is parallel to the inclination direction of the first inclined surface of the movable member on the left side, the inclination direction of the second inclined surface on the right side of the CVP is parallel to the inclination direction of the first inclined surface of the movable member on the right side, the CVP is in contact with the comb of the movable member and is inserted into the tab along the first inclined surface, and the CVP is clamped between a pair of the movable members. During the lowering of the CVP, the pair of the movable members move away from each other under the pushing force of the CVP.

[0009] In combination with the first aspect, in an embodiment, a third inclined surface is arranged on the side of the body away from the fixed frame, the third inclined surface is connected with the first inclined surface, and the third inclined surface and the first inclined surface are coplanar.

[0010] In the embodiment, during the lowering of the CVP, the second inclined surface of the CVP first contacts the third inclined surface of the body, and then contacts the first inclined surface of the comb, the first inclined surface is coplanar with the third inclined surface, ensuring that the lowering of the CVP is synchronized with the exit of the movable member, and at the same time, during the insertion, the CVP and a pair of the movable members jointly constrain the tab, ensuring that the CVP is smoothly inserted into the tab, and avoiding the deformation of the tab.

[0011] In combination with the first aspect, in an embodiment, the inclination angle of the first inclined surface is 60°-80°.

[0012] In the embodiment, the inclination angle of the first inclined surface can be 60°-80°, preferably, the inclination angle of the first inclined surface is 70°, so as to facilitate the full insertion of the comb into the tab, and at the same time, ensure that the insertion amount on both sides of the tab is optimal, thereby correcting the tab as a whole from the bottom to the top.

[0013] In combination with the first aspect, in an embodiment, a sharp end is arranged on the side of the comb away from the fixed frame.

[0014] The tip extends away from the fixed frame, and the height of the tip gradually decreases in the direction away from the fixed frame so as to be inserted into the deformed tab gap.

[0015] In combination with the first aspect, in an embodiment, the ratio of the length of the tip to the length of the movable piece in the extension direction of the track is set to 0.3-0.4.

[0016] The ratio of the length of the tip to the length of the movable piece in the extension direction of the track can be set to 0.3-0.4, and preferably, the ratio of the length of the tip to the length of the movable piece in the extension direction of the track is set to 0.32. The tip preliminarily shapes the tab, and if the length of the tip is too short, the tip cannot sufficiently shape the tab, which causes the CVP to fail to enter the tab along the first inclined surface. If the length of the tip is too long, the comb tooth enters the tab for a smaller part, which causes the tab to be insufficiently shaped in the subsequent process, and the CVP cannot be normally inserted into the tab.

[0017] In combination with the first aspect, in an embodiment, the body is provided with a limiting structure on the side close to the fixed frame, and the limiting structure is provided with a limiting baffle in the track.

[0018] The limiting structure protrudes downward along the height direction of the body, the track is provided with the limiting baffle on the side away from the fixed frame, the limiting structure is stopped by the limiting baffle, and the limiting structure is used to prevent the movable piece from sliding out of the track. In other embodiments, the body is provided with an elastic buckle on the side close to the fixed frame, and the elastic buckle is provided with a limiting baffle in the track.

[0019] In combination with the first aspect, in an embodiment, the fixed frame comprises a fixed piece and a connecting rod connected to each other, and the track is arranged in the fixed piece.

[0020] The fixed piece is connected to the reinforcing rib through the connecting rod, the fixed piece is provided as two clamping plates connected to each other, the track is arranged between the two clamping plates, the track can be arranged as a sliding groove, and the movable piece is clamped between the two clamping plates and slides in the sliding groove. In other embodiments, the track can be arranged as a support plate, and the movable piece slides on the support plate.

[0021] In combination with the first aspect, in an embodiment, the inner side surface of the fixed piece is provided with a plurality of protrusions, and the plurality of protrusions are arranged at intervals in the extension direction of the track.

[0022] The inner side of the fixing member is provided with five rows of the protrusions, and the number of protrusions in each row is three, and the protrusions in each row are staggered arranged to ensure that the movable member needs to be moved by external force during use.

[0023] In combination with the first aspect, in an implementation, the connecting rod is provided with a U-shaped clamp at the end away from the fixing member.

[0024] The connecting rod is connected with the reinforcing rib through the U-shaped clamp, which facilitates the adjustment of the position of the battery tab assembly auxiliary mechanism. One side of the U-shaped clamp is pressed against the reinforcing rib through a fastener. The side of the U-shaped clamp close to the connecting rod is provided with a connecting ring which is threadedly connected with the connecting rod, facilitating disassembly. In other embodiments, a buckle or other pressing mechanism is arranged at the end of the connecting rod away from the fixing member, so that the connecting rod is detachably connected with the reinforcing rib.

[0025] In the second aspect, the embodiments of the present application provide a tab insertion method of the battery tab assembly auxiliary mechanism, which comprises the following steps: At least one pair of fixing frames is symmetrically placed on the opposite sides of the battery tab, and the two movable members are pushed to move towards each other to preliminarily insert the tab into the tab insertion gap; The movable members are fully inserted into the tab to correct the tab to the tolerance range allowed by the CVP. A CVP is placed above the pair of movable members, and the two movable members are pushed to move away from each other to insert the CVP into the tab.

[0026] Firstly, after the battery is stacked, the battery tab assembly auxiliary mechanism is placed on the core, a pair of movable members are arranged on the two sides of the tab, and the tips of the movable members are preliminarily inserted into the tab gap. The fixing frame and the reinforcing rib are fixed, then the movable members are fully inserted into the tab, and the contact area between the movable members and the tab gradually increases, so that the deformed tab is gradually corrected to the tolerance range allowed by the CVP. Finally, a CVP is placed above the pair of movable members. During the descent of the CVP, the CVP pushes the two movable members to move away from each other and exit from the tab. When the CVP is inserted to the set position, the two movable members completely exit from the tab.

[0027] In combination with the second aspect, in an implementation, the CVP is installed above the pair of movable members, and the two movable members are pushed to move away from each other to insert the CVP into the tab, which comprises: The CVP is lowered to make the second inclined surface of the CVP contact with the third inclined surface, and the CVP is inserted into the tab along the first inclined surface.

[0028] Wherein, during the CVP descending process, the second slope of the CVP first contacts the third slope of the movable piece, then contacts the first slope of the movable piece and inserts into the tab along the first slope, and the coplanar relationship between the first slope and the third slope ensures that the CVP descending is synchronized with the withdrawal of the movable piece, and meanwhile during the insertion process, the CVP and the pair of movable pieces jointly constrain the tab, ensuring that the CVP is smoothly inserted into the tab and avoiding deformation of the tab, and when the CVP is inserted to the set position, the pair of movable pieces completely withdraws, and after the CVP is installed in place, the battery tab assembly auxiliary mechanism is removed.

[0029] The technical scheme provided by the embodiment of the present application has the beneficial effects of: By inserting the movable pieces on both sides of the tab, the movable pieces are clamped in the fixed frame, the tab is inserted into the tab insertion gap of the movable piece, the tab is corrected, during the insertion of the CVP into the tab, the CVP contacts the pair of movable pieces and pushes the two movable pieces to move in opposite directions, the CVP and the tab are aligned during the insertion process, and the problem of high insertion failure rate caused by the inability of manual operation to accurately control the deformation degree is solved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 A structural schematic diagram of a battery tab assembly auxiliary mechanism provided by the embodiment of the present application is shown in the figure. Figure 2 A structural schematic diagram of a movable piece provided by the embodiment of the present application is shown in the figure. Figure 3 A structural schematic diagram of the assembly of the movable piece and the tab provided by the embodiment of the present application is shown in the figure. Figure 4 A structural schematic diagram of the assembly of the movable piece and the CVP provided by the embodiment of the present application is shown in the figure. Figure 5 A structural schematic diagram of the assembly of the movable piece and the CVP provided by the embodiment of the present application is shown in the figure. Figure 4 A local enlarged view of position A in the figure. Figure 6 A structural schematic diagram of a fixed piece provided by the embodiment of the present application is shown in the figure.

[0032] Fig. 1, fixed frame; 11, track; 12, fixing piece; 13, connecting rod; 14, protrusion; 15, U-shaped clamp; 2, movable piece; 21, body; 211, third inclined surface; 22, comb tooth; 221, first inclined surface; 23, tip; 24, limiting structure; 3, tab; 4, CVP; 41, second inclined surface; 5, reinforcing rib. DETAILED DESCRIPTION

[0033] In order to enable personnel in the technical field to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0034] The embodiments of the present application provide a battery tab assembly auxiliary mechanism and a tab insertion method, which can solve the technical problem that tab insertion mainly relies on manual leveling and experience operation, in the manual leveling process, the operator needs to repeatedly disassemble and adjust the deformed tab, which is low in efficiency, in the insertion process, the installation tolerance of CVP to the tab is relatively high, manual operation cannot accurately control the deformation degree, resulting in a relatively high insertion failure rate.

[0035] Referring to Figures 1-3 As shown in the drawings, the embodiments of the present application provide a battery tab assembly auxiliary mechanism, which comprises: at least one pair of fixed frames 1, each of the fixed frames 1 is provided with a track 11, and a movable piece 2 is inserted into the track 11, the movable piece 2 comprises a body 21 and a plurality of comb teeth 22 connected to each other, the body 21 is movably inserted into the track 11, a plurality of the comb teeth 22 are arranged at intervals, and a tab insertion gap is formed between adjacent two of the comb teeth 22.

[0036] In the present embodiment, the battery box frame comprises two reinforcing ribs 5 arranged at intervals, at least one pair of the fixed frames 1 is fixed between the two reinforcing ribs 5, a tab 3 is arranged at the middle position between the two reinforcing ribs 5, the movable piece 2 is arranged on both sides of the tab 3, at least one pair of the movable pieces 2 slides in the direction of approaching each other or in the direction of moving away from each other along the track 11, according to actual production needs, a plurality of CVPs 4 can be processed at a time, the configuration number ratio of the fixed frame 1 to the movable piece 2 is set to 1:1, a plurality of the comb teeth 22 are inserted into the tab gap, the thickness of the movable piece 2 is greater than the thickness of the tab 3, and the maximum offset of the tab 3 allowed by the CVP 4 is 1.6 1.8 When the plurality of the comb teeth 22 are all inserted into the tab 3, the deformed tab 3 is corrected to be within the tolerance range allowed by the CVP 4, improving the tab insertion efficiency. During the insertion of the tab 3 by the CVP 4, the CVP 4 contacts a pair of the movable members 2 and pushes the two movable members 2 to move in opposite directions, achieving the alignment of the CVP 4 and the tab 3 during the insertion, avoiding the high failure rate of the insertion caused by the inaccurate control of the deformation degree by manual operation.

[0037] In other embodiments, at least one of the fixed frames 1 is fixed between two of the reinforcing ribs 5, the fixed frame 1 is arranged as a semi-closed structure with the opening upward, the bottom of the fixed frame 1 is provided with a tab insertion position, the track 11 is arranged in the fixed frame 1, and the movable members 2 are arranged on both sides of the tab 3. At least one pair of the movable members 2 slides in the fixed frame 1 along the track 11 in the direction of approaching each other or in the direction of moving away from each other.

[0038] In other embodiments, the fixed frame 1 can be arranged as a telescopic frame, one end of the telescopic frame is fixed with the movable member 2, and the other end of the telescopic frame is fixed with the reinforcing rib 5. When at least one pair of the movable members 2 is inserted into the tab 3, the telescopic frame is elongated and maintained at the current length. When at least one pair of the movable members 2 is withdrawn from the tab, the telescopic frame is shortened and maintained at the current length. The telescopic frame is elongated or shortened according to the movement of the movable member 2.

[0039] In this embodiment, the movable members 2 are inserted on both sides of the tab 3, the movable members 2 are clamped in the fixed frame 1, the tab 3 is inserted into the tab insertion gap of the movable member 2, the tab 3 is corrected, during the insertion of the tab 3 by the CVP 4, the CVP 4 contacts a pair of the movable members 2 and pushes the two movable members 2 to move in opposite directions, achieving the alignment of the CVP 4 and the tab 3 during the insertion, avoiding the high failure rate of the insertion caused by the inaccurate control of the deformation degree by manual operation, solving the technical problem that the insertion of the tab 3 mainly relies on manual correction and experience operation in the related art. During the manual correction, the operator needs to repeatedly disassemble and adjust the deformed tab 3, which is low in efficiency. During the insertion, the installation tolerance of the CVP 4 to the tab 3 is high, and the manual operation cannot accurately control the deformation degree, resulting in a high failure rate of the insertion.

[0040] Further, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , in some embodiments, the comb tooth 22 is arranged as a triangle, the side of the comb tooth 22 away from the fixed frame 1 is provided with a first inclined surface 221, and the first inclined surface 221 is used to contact the second inclined surface 41 of the CVP 4.

[0041] In the embodiment, the movable part 2 is provided as a triangular column with comb structure, the body 21 is provided as a solid part, the inclination direction of the second slope 41 on the left side of the CVP 4 is parallel to the inclination direction of the first slope 221 of the movable part 2 on the left side, the inclination direction of the second slope 41 on the right side of the CVP 4 is parallel to the inclination direction of the first slope 221 of the movable part 2 on the right side, the CVP 4 is in contact with the comb 22 of the movable part 2 and is inserted into the tab 3 along the first slope 221, the CVP 4 is clamped between a pair of movable parts 2, and during the lowering of the CVP 4, the pair of movable parts 2 moves away from each other under the pushing force of the CVP 4.

[0042] Further, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , in some embodiments, the body 21 is provided with a third slope 211 on the side away from the fixed frame 1, the third slope 211 is connected with the first slope 221, and the third slope 211 and the first slope 221 are coplanar.

[0043] In the embodiment, during the lowering of the CVP 4, the second slope 41 of the CVP 4 first contacts the third slope 211 of the body 21, and then contacts the first slope 221 of the comb 22, the first slope 221 is coplanar with the third slope 211, which ensures that the lowering of the CVP 4 is synchronized with the withdrawal of the movable part 2, and at the same time, during the insertion process, the CVP 4 and a pair of movable parts 2 jointly constrain the tab 3, which ensures that the CVP 4 is smoothly inserted into the tab 3 and avoids deformation of the tab 3.

[0044] Further, as shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , in some embodiments, the inclination angle of the first slope 221 is set to 60°-80°.

[0045] In the embodiment, the inclination angle of the first slope 221 can be set to 60°-80°, preferably, the inclination angle of the first slope 221 is set to 70°, which facilitates the full insertion of the comb 22 into the tab 3 and ensures that the insertion amount on both sides of the tab 3 is optimal, thereby straightening the tab 3 as a whole from the bottom to the top.

[0046] Further, as shown in Figures 1-3 , in some embodiments, the comb 22 is provided with a sharp end 23 on the side away from the fixed frame 1.

[0047] In the embodiment, the tip 23 extends away from the fixed frame 1, and the height of the tip 23 gradually decreases away from the fixed frame 1, so as to be inserted into the deformed tab gap.

[0048] Further, referring to Figures 1-3 In some embodiments, as shown in the drawings, the ratio of the length of the tip 23 to the length of the movable piece 2 along the extension direction of the track 11 is 0.3-0.4.

[0049] In the embodiment, the ratio of the length of the tip 23 to the length of the movable piece 2 along the extension direction of the track 11 can be 0.3-0.4, preferably, the ratio of the length of the tip 23 to the length of the movable piece 2 along the extension direction of the track 11 is 0.32. The tip 23 preliminarily shapes the tab 3. If the length of the tip 23 is too short, the tip 23 cannot sufficiently shape the tab 3, which causes the CVP 4 to fail to enter the tab 3 along the first inclined surface 221. If the length of the tip 23 is too long, the comb teeth 22 enter the tab 3 for a smaller length, which causes the tab 3 to be insufficiently shaped, and the CVP 4 cannot be normally inserted into the tab 3.

[0050] Further, referring to Figure 1 and Figure 2 In some embodiments, as shown in the drawings, the body 21 is provided with a limiting structure 24 on the side close to the fixed frame 1, and the limiting structure 24 is limited by a limiting baffle in the track 11.

[0051] In the embodiment, the limiting structure 24 protrudes downward along the height direction of the body 21, and the track 11 is provided with the limiting baffle away from the fixed frame 1, and the limiting structure 24 is stopped by the limiting baffle. The limiting structure 24 is used to prevent the movable piece 2 from sliding out of the track 11. In other embodiments, the body 21 is provided with an elastic buckle on the side close to the fixed frame 1, and the elastic buckle is limited by a limiting baffle in the track 11.

[0052] Further, referring to Figure 1 and Figure 6 In some embodiments, as shown in the drawings, the fixed frame 1 comprises a fixed piece 12 and a connecting rod 13 connected to each other, and the track 11 is arranged in the fixed piece 12.

[0053] In the embodiment, the fixing member 12 is connected with the reinforcing rib 5 through the connecting rod 13. The fixing member 12 is provided as two clamping plates connected with each other. The track 11 is arranged between the two clamping plates. The track 11 can be provided as a sliding groove. The movable member 2 is clamped between the two clamping plates and slides in the sliding groove. In other embodiments, the track 11 can be provided as a support plate. The movable member 2 slides on the support plate.

[0054] Further, as shown in Figure 1 and Figure 6 In some embodiments, the inner side of the fixing member 12 is provided with a plurality of protrusions 14. The plurality of protrusions 14 are arranged at intervals along the extension direction of the track 11.

[0055] In the embodiment, the inner side of the fixing member 12 is provided with five rows of protrusions 14. Each row of protrusions 14 is provided with three protrusions 14. The protrusions 14 in each row are arranged staggered to ensure that the movable member 2 needs to be moved by external force during use.

[0056] Further, as shown in Figure 1 In some embodiments, the end of the connecting rod 13 away from the fixing member 12 is provided with a U-shaped clamp 15.

[0057] In the embodiment, the connecting rod 13 is connected with the reinforcing rib 5 through the U-shaped clamp 15. The position of the battery tab assembly auxiliary mechanism is convenient to adjust. One side of the U-shaped clamp 15 is pressed against the reinforcing rib 5 through a fastener. The side of the U-shaped clamp 15 close to the connecting rod 13 is provided with a connecting ring. The connecting ring is threadedly connected with the connecting rod 13 to facilitate disassembly. In other embodiments, the end of the connecting rod 13 away from the fixing member 12 is provided with a buckle or other pressing mechanism to enable the connecting rod 13 to be detachably connected with the reinforcing rib 5.

[0058] As shown in Figures 1-4 The battery tab assembly auxiliary mechanism provided by the embodiment of the application provides a tab insertion method, which comprises the following steps: S1: At least one pair of fixing frames 1 is symmetrically placed on the opposite sides of the battery tab 3. The two movable members 2 are pushed to move towards each other, so that the tab 3 is preliminarily inserted into the tab insertion gap.

[0059] S2: The movable member 2 is inserted into the tab 3, so that the tab 3 is corrected to be within the tolerance range allowed by the CVP 4.

[0060] S3: The CVP 4 is lowered above the pair of movable members 2. The two movable members 2 are pushed to move away from each other, so that the CVP 4 is inserted into the tab 3.

[0061] In this embodiment, first, after the battery is stacked, the battery tab assembly auxiliary mechanism is placed on the core, a pair of the movable pieces 2 are arranged on both sides of the tab 3, and then the tips 23 of the movable pieces 2 are initially inserted into the tab gap. The fixed frame 1 and the reinforcing rib 5 are fixed, then the movable pieces 2 are fully inserted into the tab 3, the contact area of the movable pieces 2 with the tab 3 gradually increases, and the deformed tab 3 is gradually corrected to within the tolerance range allowed by the CVP 4; finally, the CVP 4 is lowered above a pair of the movable pieces 2. During the descent of the CVP 4, the CVP 4 pushes the two movable pieces 2 to move away from each other and exit from the tab 3, and when the CVP 4 is inserted into the set position, the two movable pieces 2 completely exit from the tab 3.

[0062] Further, referring to FIGS. 1-4, in some embodiments, the CVP 4 is installed above a pair of the movable pieces 2, the two movable pieces 2 are pushed to move away from each other, the CVP 4 is inserted into the tab 3, and the method comprises: Figure 1 Figure 2 Figure 4 Figure 5 and the like, in some embodiments, the CVP 4 is installed above a pair of the movable pieces 2, the two movable pieces 2 are pushed to move away from each other, the CVP 4 is inserted into the tab 3, and the method comprises: The CVP 4 is lowered, the second inclined surface 41 of the CVP 4 is in contact with the third inclined surface 211, and the CVP 4 is inserted into the tab 3 along the first inclined surface 221.

[0063] In this embodiment, during the descent of the CVP 4, the second inclined surface 41 of the CVP 4 first contacts the third inclined surface 211 of the movable piece 2, then contacts the first inclined surface 221 of the movable piece 2, and is inserted into the tab 3 along the first inclined surface 221. The first inclined surface 221 is coplanar with the third inclined surface 211, ensuring that the descent of the CVP 4 is synchronized with the exit of the movable piece 2, and at the same time during the insertion process, the CVP 4 and a pair of the movable pieces 2 jointly constrain the tab 3, ensuring that the CVP 4 is smoothly inserted into the tab 3, avoiding deformation of the tab 3, and when the CVP 4 is inserted into the set position, a pair of the movable pieces 2 completely exit, and after the CVP 4 is installed in place, the battery tab assembly auxiliary mechanism is removed.

[0064] ​​​In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0066] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A battery tab assembly auxiliary mechanism, characterized in that, It includes: At least one pair of fixed frames (1), each fixed frame (1) is provided with a track (11), and a movable part (2) is inserted into the track (11). The movable part (2) includes a body (21) and a plurality of comb teeth (22) connected to each other. The body (21) is movably inserted into the track (11). The plurality of comb teeth (22) are spaced apart, and a tab insertion gap is formed between two adjacent comb teeth (22).

2. The battery tab assembly auxiliary mechanism as described in claim 1, characterized in that, The comb teeth (22) are set in a triangle, and a first inclined surface (221) is provided on the side of the comb teeth (22) away from the fixing frame (1). The first inclined surface (221) is used to contact the second inclined surface (41) of the CVP (4).

3. The battery tab assembly auxiliary mechanism as described in claim 2, characterized in that, The main body (21) has a third inclined surface (211) on the side away from the fixing frame (1). The third inclined surface (211) is connected to the first inclined surface (221), and the third inclined surface (211) and the first inclined surface (221) are coplanar.

4. The battery tab assembly auxiliary mechanism as described in claim 3, characterized in that, The inclination angle of the first inclined plane (221) is set to 60°~80°.

5. The battery tab assembly auxiliary mechanism as described in claim 2, characterized in that, The comb teeth (22) have a tip (23) on the side away from the fixing frame (1).

6. The battery tab assembly auxiliary mechanism as described in claim 5, characterized in that, The ratio of the length of the tip (23) to the length of the movable part (2) along the extension direction of the track (11) is set to 0.3~0.

4.

7. The battery tab assembly auxiliary mechanism as described in claim 1, characterized in that, The main body (21) is provided with a limiting structure (24) on the side near the fixed frame (1), and the limiting structure (24) is limited to a limiting baffle in the track (11).

8. The battery tab assembly auxiliary mechanism as described in claim 1, characterized in that, The fixing frame (1) includes a fixing member (12) and a connecting rod (13) that are connected to each other, and the track (11) is provided inside the fixing member (12).

9. The battery tab assembly auxiliary mechanism as described in claim 8, characterized in that, The inner side of the fastener (12) is provided with a plurality of protrusions (14), and the plurality of protrusions (14) are spaced apart along the extension direction of the track (11).

10. The battery tab assembly auxiliary mechanism as described in claim 8, characterized in that, The connecting rod (13) is provided with a U-shaped clamp (15) at the end away from the fixing member (12).

11. A method for inserting battery tabs using a battery tab assembly auxiliary mechanism as described in any one of claims 1-10, characterized in that, It includes the following steps: Place at least one pair of fixing brackets (1) symmetrically on opposite sides of the battery tabs (3), and push the two movable parts (2) to move towards each other, so that the tabs (3) are initially inserted into the tab insertion gap; Insert the movable part (2) into the tab (3) to straighten the tab (3) to the tolerance range allowed by CVP (4); Place CVP (4) above a pair of movable parts (2) and push the two movable parts (2) to move away from each other, so that CVP (4) is inserted into the tab (3).

12. The electrode insertion method as described in claim 11, wherein the comb teeth (22) have a first inclined surface (221) on the side away from the fixing frame (1), and the body (21) has a third inclined surface (211) on the side away from the fixing frame (1), characterized in that, The method of installing CVP (4) above a pair of movable members (2) and pushing the two movable members (2) to move away from each other, so that CVP (4) is inserted into the tab (3), includes: Lower CVP (4) so ​​that the second inclined surface (41) of CVP (4) contacts the third inclined surface (211), and CVP (4) is inserted into the tab (3) along the first inclined surface (221).

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