Tab shaping structure and tab shaping device
Through the shaping structure and device of the shaping structure of the foil of the foil is compacted and a recessed structure is prepared on the outside, which solves the problem of unstable welding of the foil between the foil and the foil plate, and realizes reliable welding and stable assembly of the battery cell.
Patent Information
- Application Number
- CN202421825375.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-30
AI Technical Summary
During the production process of winding all-pole ear battery cells, the connection surfaces of the ear foil material and the electrode plate are irregular when welded, resulting in problems of dummy welding and plate lifting.
An extreme ear shaping structure and device are provided, including a shaping seat and a shaping cylinder. The extreme ear foil is compacted by shaping protrusions and tapering inner peripheral surfaces, and a recessed structure is prepared on the outside, and the convex structure of the electrode plate is combined with the welding positioning.
Increase the contact area between the electrode ears and the electrode plates, avoid dummy welding, ensure welding reliability, and prevent the electrode plates from rising, and improve the assembly stability of the battery cell.
Smart Images
Figure CN223079156U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of production tooling for components, and particularly to an ear shaping structure and an ear shaping device. Background Art
[0002] During the production process of wound full-tab batteries, it is necessary to weld the wound tab foil with its corresponding electrode plate. Since the wound tab foil is still in a relatively loose state, the connection surface formed on the outside of the wound tab foil is irregular, which is not conducive to realizing the welding positioning between the tab and the electrode plate, resulting in easy occurrence of false welding when welding the tab and the electrode plate. The welding between the tab and the electrode plate is unreliable and cannot meet the tensile strength requirements between the tab and the electrode plate.
[0003] In addition, after the battery cell is installed in the battery housing, due to the irregular connection surface when welding the tab foil and the electrode plate, the electrode plate is prone to warping, which may cause the electrode plate at the end of the battery cell to easily push out the cover plate of the battery housing. Utility Model Content
[0004] This application provides an ear shaping structure and an ear shaping device to solve the problem of shaping the tab before welding with the electrode plate.
[0005] In a first aspect, this application provides an ear shaping structure, including:
[0006] A shaping base, on which there is a shaping protrusion;
[0007] A shaping cylinder, one end of the shaping cylinder is connected to the shaping base to form a shaping cavity with an opening. The shaping protrusion is located inside the shaping cavity; the opening is located at the other end of the shaping cylinder; the inner peripheral surface of the shaping cylinder is tapered along the direction from the opening to the shaping protrusion.
[0008] Optionally, the shaping protrusion includes a plurality of convex ribs, and the plurality of convex ribs are centrally symmetrically distributed on the shaping base with the axis of the inner peripheral surface as the center.
[0009] In a second aspect, this application provides an ear shaping device, including the ear shaping structure provided in the first aspect of this application, and further including a driving assembly. The driving assembly is connected to the shaping base and drives the ear shaping structure to move axially along the inner peripheral surface.
[0010] Optionally, the driving assembly includes a driving member, a connecting pipeline, a valve member, and a detecting member. The driving member and the valve member are both connected to the connecting pipeline, and the detecting member is used to detect the fluid pressure in the connecting pipeline.
[0011] Optionally, two ear shaping structures are arranged oppositely, and the openings of the two shaping cavities are arranged oppositely.
[0012] Optionally, the tab shaping device further comprises a guide assembly, which is connected to the tab shaping structure and / or the driving assembly; the guide assembly comprises a guide structure extending axially along the inner circumferential surface.
[0013] Optionally, the guide assembly further includes a fixed plate and a push plate, the guide structure is connected to the fixed plate, the push plate is slidably connected to the guide structure along the axial direction of the inner circumference, and the pole ear shaping structure is connected to the push plate.
[0014] Optionally, the tab shaping device further comprises a positioning component, the positioning component comprises a battery cell positioning groove, and the battery cell positioning groove is arranged corresponding to the opening.
[0015] Optionally, the tab shaping device further includes a limiting assembly, the limiting assembly includes a first limiting member and a second limiting member that are arranged opposite to each other, and the first limiting member is connected to the tab shaping structure.
[0016] Optionally, the positioning assembly further has a mounting groove, and the second limiting member is detachably disposed in the mounting groove.
[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:
[0018] The pole lug shaping structure provided in the embodiment of the present application connects one end of the shaping tube to the shaping seat to form a shaping cavity with an opening. During shaping, the pole lug foil at the end of the battery cell can be wrapped, and the pole lug foil is compacted by the inner wall of the shaping cavity. The shaping protrusion is located inside the shaping cavity, and the inner circumference of the shaping tube is gradually reduced in the direction from the opening to the shaping protrusion, so that the pole lug in a loose state after winding can be gathered into the shaping cavity. The shaping protrusion can compact and shape the pole lug foil together with the inner wall of the shaping cavity, and while compacting the pole lug foil, a concave positioning structure is prepared on the outer side of the pole lug, so as to realize the concave-convex matching between the pole lug and the pole plate, thereby realizing the welding positioning between the two, increasing the matching area between the pole lug and the pole plate, and avoiding the situation of cold welding between the pole lug and the pole plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0021] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.
[0022] Figure 1 Schematic structural diagram of the tab shaping structure provided by the embodiment of the present application;
[0023] Figure 2 Schematic structural diagram of the end part of the battery cell before shaping provided by the embodiment of the present application;
[0024] Figure 3 Schematic structural diagram of the tab shaping device provided by the embodiment of the present application;
[0025] Figure 4 Schematic diagram of the setting of the positioning component provided by the embodiment of the present application;
[0026] Figure 5 Schematic diagram of the cooperation between the battery cell and the tab shaping device provided by the embodiment of the present application;
[0027] Figure 6 Schematic diagram of the use of the tab shaping device provided by the embodiment of the present application;
[0028] Figure 7 Schematic structural diagram of the end part of the battery cell after shaping provided by the embodiment of the present application;
[0029] Figure 8 Schematic diagram of the connection between the electrode plate and the shaped tab provided by the embodiment of the present application.
[0030] Explanation of reference numerals in the drawings:
[0031] 1. Shaping base; 11. Shaping protrusion; 12. Connecting hole;
[0032] 2. Shaping cylinder; 21. Inner peripheral surface; 22. Cylinder body;
[0033] 3. Driving component; 31. Driving part; 32. Connecting pipeline; 33. Control valve; 34. Reversing valve;
[0034] 4. Guiding component; 41. Guiding structure; 42. Fixed plate; 43. Pushing plate; 44. Linear bearing; 45. Connecting rod;
[0035] 5. Positioning component; 51. Battery cell positioning groove; 52. Installation groove; 53. Positioning block;
[0036] 6. Limiting component; 61. First limiting part; 62. Second limiting part;
[0037] 7. Bottom plate;
[0038] 8. Battery cell; 81. Tab; 82. Battery cell body;
[0039] 9. Plate. Detailed implementation manners
[0040] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0041] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0042] For ease of description, spatially relative relationship terms may be used in the text to describe the relative position relationship or movement of one element or feature shown in the figure relative to another element or feature, such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", "front", "rear", etc. Such spatially relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or attitude change or movement state change, then these directional indications will also change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will then be oriented as "above other elements or features" or "upper other elements or features". Therefore, the exemplary term "below" may include the orientations of above and below. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatially relative relationship descriptors used in the text are interpreted accordingly.
[0043] To solve the technical problem of the shaping of the tab 81 before welding with the plate 9 in the prior art, the present application provides a tab shaping structure and a tab shaping device, which can realize the state arrangement of the tab 81 after winding, compact the tab 81 and prepare a positioning structure on one side of the tab 81 at the same time, so as to facilitate the welding between the tab 81 and the plate 9.
[0044] Please refer toFigures 1 to 8 The first aspect of the embodiment of the present application provides a tab shaping structure, including a shaping seat 1 and a shaping cylinder 2, such as Figure 1 The shaping seat 1 has a shaping protrusion 11. When the shaping seat 1 is pressed against one end of the battery cell 8, the foil of the pole ear 81 can be pressed, and a concave structure matching the shaping protrusion 11 is pressed on the outer surface of the foil of the pole ear 81, which can be used to cooperate with the concave and convex of the pole plate 9 to achieve welding positioning, such as Figure 2 and Figure 7 shown.
[0045] One end of the shaping cylinder 2 is connected to the shaping seat 1 to form a shaping cavity with an opening. During shaping, the foil of the pole ear 81 at the end of the battery cell 8 can be wrapped, and the foil of the pole ear 81 can be compacted through the inner wall of the shaping cavity. The shaping protrusion 11 is located inside the shaping cavity, and can shape the foil of the pole ear 81 together with the inner wall of the shaping cavity. The opening is located at the other end of the shaping cylinder 2, so that the pole ear 81 can extend from the opening and move toward the shaping protrusion 11; the inner circumferential surface 21 of the shaping cylinder 2 is gradually reduced in the direction from the opening to the shaping protrusion 11, so that the pole ear 81 in a loose state after winding can be gathered into the shaping cavity.
[0046] It should be noted that when shaping the pole lug 81, the shaping seat 1 and the shaping cylinder 2 are pressed against one end of the battery cell 8, the foil of the pole lug 81 is compacted through the shaping cavity and the shaping protrusion 11, and a concave structure matching the shaping protrusion 11 is prepared on the outer side of the compacted pole lug 81 to facilitate the welding positioning between the pole lug 81 and the pole plate 9, increase the matching area between the pole lug 81 and the pole plate 9, and avoid the occurrence of cold welding between the pole lug 81 and the pole plate 9. The outer side of the pole lug 81 compacted by the pole lug shaping structure is flat, which is conducive to welding with the pole plate 9, and can avoid the pole plate 9 from tilting, and avoid lifting the cover plate when the battery is assembled.
[0047] In some embodiments of the present application, the inner circumferential surface 21 is a conical surface, which can make the opening of the shaping cavity shaped like a trumpet, so as to facilitate the gathering and guiding of the tabs 81 of the cylindrical wound battery cell 8.
[0048] In some embodiments of this application, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 The shaping protrusion 11 includes a plurality of ridges, which are centrally symmetrically distributed on the shaping seat 1 with the axis of the inner circumferential surface 21 as the center, and are used to form a centrally symmetrical recessed structure (i.e., a positioning structure) at one end of the battery cell 8, which is beneficial to improving the convenience of positioning and matching.
[0049] In some preferred embodiments of the present application, since there is a cross-shaped rib structure on the electrode plate 9, the shaping protrusion 11 is also set to a cross-shaped structure matching the electrode plate 9, such asFigure 1 and Figure 8 As shown, the shape of the tab 81 at the end of the battery cell 8 can be made to match that of the electrode plate 9, facilitating the welding of the tab 81 to the electrode plate 9, thereby avoiding problems such as poor soldering and insufficient tensile strength.
[0050] In some embodiments of the present application, referring to Figure 1 , the cylinder body 22 of the shaping cylinder 2 and the shaping base 1 are of an integral structure, facilitating the fabrication of the tab shaping structure, improving the structural stability of the shaping cavity, and reducing the assembly process. Specifically, the tab shaping structure can be manufactured using high-strength steel.
[0051] To achieve the automatic shaping of the tab 81, referring to Figures 1 to 8 , a second aspect of the embodiments of the present application provides a tab shaping device, which includes the tab shaping structure in the above embodiments, and further includes a driving assembly 3. The driving assembly 3 is connected to the shaping base 1 and drives the tab shaping structure to move axially along the inner circumferential surface 21, thereby automatically achieving the pressing and shaping of the tab 81 at the end of the battery cell 8, as shown in Figure 5 and Figure 6 .
[0052] In some embodiments of the present application, referring to Figure 3 and Figure 5 , the driving assembly 3 includes a driving member 31, a connecting pipeline 32, a valve member, and a detecting member. The driving member 31 can be a cylinder or a hydraulic cylinder, and the telescopic movement of the driving member 31 drives the tab shaping structure to reciprocate axially along the inner circumferential surface 21, thereby achieving the pressing and releasing of the tab 81.
[0053] Both the driving member 31 and the valve member are connected to the connecting pipeline 32 to achieve the transmission or commutation of the fluid inside the connecting pipeline 32, thereby achieving the telescopic control of the driving member 31. The detecting member is used to detect the fluid pressure in the connecting pipeline 32, thereby achieving the control of the moving speed and pressing force of the tab shaping structure, and avoiding damage to the battery cell 8 caused by excessive pressing force applied by the tab shaping structure while pressing the tab 81.
[0054] In some embodiments of the present application, referring to Figure 3 and Figure 5 , the valve member includes a control valve 33 and a reversing valve 34. The control valve 33 can achieve the flow or cut-off of the fluid inside the connecting pipeline 32, thereby achieving the start-stop control of the driving member 31. The reversing valve 34 can achieve the commutation of the fluid inside the driving member 31, thereby achieving the telescopic control of the driving member 31.
[0055] In some embodiments of the present application, referring to Figure 3 , Figure 5 and Figure 6, two tab shaping structures are arranged opposite to each other, and the openings of the two shaping cavities are arranged opposite to each other, so as to shape the positive tab 81 and the negative tab 81 at both ends of the battery cell body 82 respectively.
[0056] In some embodiments of the present application, please refer to Figure 6 , the driving assembly 3 includes two driving members 31, and the two driving members 31 are arranged in one-to-one correspondence with the two tab shaping structures, and are used to realize the relative movement of the two tab shaping structures. When it is necessary to shape the tabs 81 at both ends of the battery cell body 82, the piston rods of the two driving members 31 extend out simultaneously, driving the two tab shaping structures to approach each other, so as to realize the pressing and shaping of the tabs 81 at both ends of the battery cell body 82. After the shaping of the tabs 81 is completed, the piston rods of the two driving members 31 retract synchronously, driving the two tab shaping structures to move away from each other, so as to realize the separation between the battery cell 8 and the tab shaping structure.
[0057] Specifically, the driving member 31 is a cylinder, the fluid inside the connecting pipeline 32 is compressed air, and the two cylinders are connected in parallel through the connecting pipeline 32, so as to realize the synchronous expansion and contraction of the two driving members 31, accurately control the moving distance of the two tab shaping structures, and ensure that the shaping effects of the tabs 81 at both ends of the battery cell 8 are consistent.
[0058] In some embodiments of the present application, please refer to Figure 3 , Figure 5 and Figure 6 , the tab shaping device further includes a guiding assembly 4, and the guiding assembly 4 is connected to the tab shaping structure and / or the driving assembly 3, and is used to guide the movement of the tab shaping structure. The guiding assembly 4 includes a guiding structure 41 extending along the axial direction of the inner peripheral surface 21, which can make the tab shaping structure always move along the axial direction of the inner peripheral surface 21, which is beneficial to realizing the docking between the tab 81 at the end of the battery cell 8 and the shaping cavity, so that the tab 81 completely enters the shaping cavity, and the shaped tab 81 reaches the accurate shaping state as shown in Figure 7 .
[0059] In some embodiments of the present application, please refer to Figure 3 , Figure 5 and Figure 6 , the guiding assembly 4 further includes a fixing plate 42 and a pushing plate 43, the guiding structure 41 is connected to the fixing plate 42, and the pushing plate 43 is slidably connected to the guiding structure 41 along the axial direction of the inner peripheral surface 21, and can slide relative to the guiding structure 41 along the axial direction of the inner peripheral surface 21. The tab shaping structure is connected to the pushing plate 43 and can move synchronously with the pushing plate 43, so that the tab shaping structure always slides along the axial direction of the inner peripheral surface 21 under the cooperation of the guiding structure 41 and the pushing plate 43, realizing the accurate docking with the end of the battery cell 8.
[0060] It should be noted that the driving member 31 can be connected to the tab shaping structure or the push plate 43, and both can achieve the purpose of this application.
[0061] As a specific embodiment of this application, the shaping base 1 is provided with a connection hole 12 for fixedly connecting with the push plate 43. One side of the push plate 43 away from the shaping base 1 is connected to the piston rod of the driving member 31, and the driving member 31 can drive the push plate 43 and the tab shaping structure to move integrally.
[0062] In some embodiments of this application, the guiding assembly 4 includes two oppositely arranged fixing plates 42. The two fixing plates 42 are respectively connected to the two driving members 31 in a one-to-one correspondence, and the fixing plates 42 are provided with through holes for the piston rod to extend, so as to avoid interference of the fixing plates 42 with the movement of the driving member 31. A connecting rod 45 is arranged between the two fixing plates 42, which can be used to form a rectangular frame with stable structure. The two guiding structures 41 are arranged on both sides of the rectangular frame, and both ends of the guiding structure 41 are respectively connected to the two fixing plates 42, so as to form a guiding assembly 4 with stable structure. Both sides of the push plate 43 are slidably connected to the two guiding structures 41, which can achieve uniform guiding effect on the push plate 43.
[0063] In some embodiments of this application, the guiding structure 41 is a guiding rod, and the guiding rod and the push plate 43 are connected through a linear bearing 44, which can reduce the relative sliding resistance between the guiding rod and the push plate 43.
[0064] In some embodiments of this application, the tab shaping device further includes a positioning assembly 5. The positioning assembly 5 has a battery cell positioning groove 51 for fixing the battery cell 8 to prevent the battery cell 8 from shifting during the tab 81 shaping process. The battery cell positioning groove 51 is arranged corresponding to the opening to facilitate the alignment between the battery cell 8 and the opening of the shaping cavity.
[0065] It should be noted that the positioning assembly 5 can include one or more positioning blocks 53. The positioning blocks 53 are made of bakelite, which has good mechanical strength and insulation performance. The battery cell positioning groove 51 is arranged on the positioning block 53 to fix the battery cell 8 on the positioning block 53. In order to save the manufacturing material of the positioning assembly 5, it is preferably to use a combination of multiple positioning blocks 53 with smaller axial lengths to set the battery cell 8, such as Figure 3 、 Figure 4 and Figure 5 shown, so as to avoid that when the battery cell 8 is placed through one positioning block 53, the axial length of the positioning block 53 on the inner circumferential surface 21 (i.e., the axial direction of the battery cell 8) is relatively long, resulting in more material used for the positioning block 53 and increased part cost.
[0066] In some embodiments of this application, please refer to Figure 3 、 Figure 5 and Figure 6, the tab shaping device further includes a limiting component 6. The limiting component 6 includes a first limiting member 61 and a second limiting member 62 which are oppositely arranged, and the first limiting member 61 is connected to the tab shaping structure. When the first limiting member 61 abuts against the second limiting member 62, it can limit the further movement of the first limiting member 61 and the tab shaping structure towards the second limiting member 62, thereby realizing the movement limit of the tab shaping structure and avoiding excessive pressing stroke of the tab shaping structure, which may cause damage to the battery cell 8.
[0067] In some embodiments of the present application, both ends of the second limiting member 62 are respectively used to limit the tab shaping structures located at both ends of the battery cell 8. The first limiting members 61 are arranged on both sides of the tab shaping structure. The first limiting member 61 is fixedly connected to the push plate 43, and the corresponding cooperation can be realized through the second limiting members 62 on both sides of the battery cell 8, so as to apply symmetrical forces to the push plate 43 and realize the uniform abutment and limitation on both sides of the push plate 43.
[0068] In some embodiments of the present application, the positioning component 5 further has a mounting groove 52, and the second limiting member 62 is detachably arranged in the mounting groove 52, which can realize the fixation of the second limiting member 62. When the size of the battery cell 8 is changed, the second limiting member 62 in the mounting groove 52 can be synchronously replaced to make the length of the second limiting member 62 correspond to the length of the battery cell 8, so as to realize the shaping production of the tabs 81 of different specifications of the battery cell 8.
[0069] Specifically, two mounting grooves 52 are symmetrically arranged on both sides of the positioning block 53, and two second limiting members 62 can be arranged on both sides of the battery cell 8, so as to realize the uniform abutment and limitation on both sides of the push plate 43, as Figure 5 and Figure 6 shown.
[0070] As a specific embodiment of the present application, the first limiting member 61 is a limiting block arranged on the push plate 43, and the second limiting member 62 is a limiting rod arranged in the mounting groove 52. The two ends of the limiting rod respectively abut against the two limiting blocks to realize the sliding limit of the two push plates 43 and the tab shaping structure.
[0071] In some embodiments of the present application, please refer to Figures 3 to 6 , the tab shaping device further includes a bottom plate 7. The bottom plate 7 is provided with a plurality of mounting holes, which can be used to connect components such as the driving member 31, the control valve 33, the reversing valve 34, the fixing plate 42, and the positioning block 53, so as to realize the fixed setting of the above components and connect the tab shaping device into a whole, which is convenient for the overall movement of the tab shaping device according to production needs.
[0072] In some embodiments of the present application, please refer to Figures 1 to 8 , the usage method of the above tab shaping device is as follows:
[0073] Step 1: Retract the piston rods of the two driving members 31 through the driving assembly 3 to move the two ear shaping structures away from each other and make the distances from the ear shaping structures to the positioning assembly 5 the same.
[0074] Step 2: Place the battery cell 8 and the second limiting member 62 in the positioning assembly 5 and make the distances between the two end faces of the second limiting member 62 and the corresponding first limiting member 61 on its corresponding side the same.
[0075] Step 3: Drive the push plate 43 to move through the driving assembly 3. Under the action of the guiding structure 41, the push plate 43 drives the ear shaping structures to move along the axial direction of the inner peripheral surface 21 (i.e., the axial direction of the battery cell 8) to make the two ear shaping structures approach each other.
[0076] Step 4: The two push plates 43 continue to move until the end face of the first limiting member 61 contacts the end face of the second limiting member 62, and shape the ear 81 through the shaping cavity.
[0077] Step 5: After reaching the preset shaping time, the driving assembly 3 drives the ear shaping structures to move away from each other, remove the battery cell 8 with the ear 81 shaped, and transfer it to the welding process of the ear 81 and the electrode plate 9.
[0078] Step 6: Make the concave-convex fit between the electrode plate 9 and the concave structure on the outer side of the ear 81 to realize the welding between the ear 81 and the electrode plate 9.
[0079] It should be understood that the terms used in this text are only for the purpose of describing specific exemplary embodiments and are not intended to be limiting. Unless otherwise clearly specified in the context, the singular forms "a", "an", and "the" as used in this text may also represent the plural form. The terms "include", "comprise", "contain", and "have" are inclusive and thus specify the existence of the stated features, steps, operations, elements, and / or components, but do not exclude the existence or addition of one or more other features, steps, operations, elements, components, and / or their combinations. The method steps, processes, and operations described in this text are not to be construed as necessarily requiring them to be executed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.
[0080] Although terms such as first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used in the text. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.
[0081] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious 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 rather to the broadest scope consistent with the principles and novel features claimed herein.
Claims
1. An ear tab shaping structure, characterized in that, Comprising: A shaping base (1) with shaping protrusions (11) thereon; A shaping cylinder (2), one end of the shaping cylinder (2) is connected to the shaping base (1) to form a shaping cavity with an opening, and the shaping protrusions (11) are located inside the shaping cavity; the opening is located at the other end of the shaping cylinder (2); the inner peripheral surface (21) of the shaping cylinder (2) is tapered along the direction from the opening to the shaping protrusions (11).
2. The tab shaping structure according to claim 1, wherein The shaping protrusions (11) include multiple convex ribs, and the multiple convex ribs are centrally symmetrically distributed on the shaping base (1) with the axis of the inner peripheral surface (21) as the center.
3. An ear tab shaping device, comprising the ear tab shaping structure according to claim 1 or 2, characterized in that, It further includes a driving assembly (3), the driving assembly (3) is connected to the shaping base (1) to drive the ear shaping structure to move axially along the inner peripheral surface (21).
4. The tab shaping device according to claim 3, wherein, The driving assembly (3) includes a driving member (31), a connecting pipeline (32), a valve member and a detecting member, the driving member (31) and the valve member are both connected to the connecting pipeline (32), and the detecting member is used to detect the fluid pressure in the connecting pipeline (32).
5. The tab shaping device according to claim 3, characterized in that, Two of the ear shaping structures are arranged oppositely, and the openings of the two shaping cavities are arranged oppositely.
6. The tab shaping device according to any one of claims 3 to 5, characterized in that It further includes a guiding assembly (4), the guiding assembly (4) is connected to the ear shaping structure and / or the driving assembly (3); the guiding assembly (4) includes a guiding structure (41) extending axially along the inner peripheral surface (21).
7. The tab shaping device according to claim 6, characterized in that, The guiding assembly (4) further includes a fixing plate (42) and a pushing plate (43), the guiding structure (41) is connected to the fixing plate (42), the pushing plate (43) is slidably connected to the guiding structure (41) axially along the inner peripheral surface (21), and the ear shaping structure is connected to the pushing plate (43).
8. The tab forming device according to any one of claims 3 to 5, characterized in that It further includes a positioning assembly (5), the positioning assembly (5) has a battery cell positioning groove (51), and the battery cell positioning groove (51) is arranged corresponding to the opening.
9. The tab shaping device according to claim 8, wherein, It further includes a limiting assembly (6), the limiting assembly (6) includes a first limiting member (61) and a second limiting member (62) arranged oppositely, and the first limiting member (61) is connected to the ear shaping structure.
10. The tab shaping device according to claim 9, wherein, The positioning assembly (5) further has a mounting groove (52), and the second limiting member (62) is detachably arranged in the mounting groove (52).