Folding tab device and battery production line

Abstract

The application discloses a kind of earfolding device and battery production line, wherein the earfolding device includes support seat, fixed seat, fixed plate, tab limiting block, clamping assembly and limiting piece, wherein fixed seat is set to support seat, fixed plate is rotatably connected with support seat, fixed plate can be opened or closed relative to fixed seat, tab limiting block is slidably arranged in support seat, under the condition that battery shell is carried on fixed seat, fixed plate fixes the battery cell, tab limiting block is configured to limit the tab between battery cell and battery shell;Clamping assembly is arranged on the fixed plate, and the limiting piece is arranged on the support seat.The above-mentioned scheme provided by the application can make the battery cell enter the battery shell efficiently and accurately, and under the limitation of the tab limiting block, the tab bending accuracy and consistency are greatly improved, and the product yield is improved.The whole device is simple and convenient to operate, effectively improves the efficiency of tab bending process, and saves working time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a folding tab device and a battery production line. BACKGROUND

[0002] In the production of lithium ion batteries, it is a key process step to fold the tabs of the battery cell using a folding tab device and then load them into the shell.

[0003] In the related art, the folding tab device has low bending precision when in use, resulting in a high scrap rate of the battery cell. SUMMARY

[0004] In view of the above problems, the present application provides a folding tab device and a battery production line, which can solve the problem of low bending precision of the folding tab device when in use.

[0005] To solve the above technical problems, in a first aspect, the present application provides a folding tab device, comprising:

[0006] a support seat;

[0007] a fixing seat, the fixing seat is arranged on the support seat, and the fixing seat is configured to carry a battery shell;

[0008] a fixing plate, the fixing plate is rotationally connected with the support seat, the fixing plate can be opened or closed relative to the fixing seat, and the fixing plate is configured to fix a battery cell;

[0009] a tab limiting block, the tab limiting block is slidingly arranged on the support seat, under the condition that the battery shell is carried on the fixing seat and the fixing plate fixes the battery cell, the tab limiting block is configured to limit the tabs between the battery cell and the battery shell;

[0010] a clamping assembly, the clamping assembly is arranged on the fixing plate, and under the condition that the battery cell is placed on the fixing plate, the clamping assembly is configured to fasten the battery cell to the fixing plate;

[0011] a limiting piece, the limiting piece is arranged on the support seat, and under the condition that the fixing plate is opened to a preset angle relative to the fixing seat, the side of the fixing plate away from the fixing seat abuts against the limiting piece.

[0012] In the technical scheme of the embodiment of the application, before the battery cell enters the shell, the battery shell is placed on the fixing seat, the battery cell is fixed on the fixing plate, at this time, the position of the movable tab limiting block is moved so that the movable tab limiting block abuts against the corresponding tab to prevent the tab from being damaged due to non-flexible bending and causing scrapping, then the fixing plate is closed with the fixing seat after the fixing plate is rotated relative to the support seat, so that the tab bending and the battery cell entering the battery shell are completed. In this way, the battery cell can be efficiently and accurately entered into the battery shell, and the tab bending precision and consistency are greatly improved under the limitation of the tab limiting block, and the product yield is improved. The overall device is simple and convenient to operate, effectively improves the efficiency of the tab bending process, and saves working time.

[0013] In some embodiments, the clamping assembly comprises a supporting plate, a sliding rod and a clamping plate;

[0014] The fixing plate is provided with a first placing groove on the side facing the fixing seat, the fixing plate is provided with a connecting plate on the side away from the tab limiting block, and the fixing plate is provided with a guide hole on the side facing the connecting plate;

[0015] The supporting plate is arranged on the side of the fixing plate away from the connecting plate, and the supporting plate at least partially extends into the first placing groove, the clamping plate is located in the guide hole, and the sliding rod is connected with the clamping plate through the connecting plate and is configured to drive the clamping plate to move close to or away from the supporting plate;

[0016] Under the condition that the battery cell is placed in the first placing groove, the battery cell is fixed between the supporting plate and the clamping plate. In this way, the clamping plate is moved by the sliding rod to move close to or away from the supporting plate, so that the battery cell can be fastened to the fixing plate.

[0017] In some embodiments, the supporting plate comprises a clamping block and a first supporting plate, the fixing plate is provided with a clamping groove on the side away from the first placing groove, the clamping block is arranged in the clamping groove, the first supporting plate is connected with the clamping block, and the first supporting plate at least partially extends into the first placing groove;

[0018] Under the condition that the battery cell is placed in the first placing groove, the battery cell is fixed between the first supporting plate and the clamping plate. In this way, the installation or dismounting of the supporting plate is facilitated.

[0019] In some embodiments, the clamping assembly further comprises a handle, and the handle is connected with the clamping block.

[0020] In some embodiments, the fixing plate is provided with a first through hole in the thickness direction, and the first through hole penetrates the first placing slot. In this way, when the battery cell is placed into the first placing slot, the battery cell can be taken out of the first placing slot by passing through the first through hole with other components.

[0021] In some embodiments, the tab folding device further comprises a fixing block, and the fixing block is arranged on the side of the fixing seat.

[0022] When the fixing plate is closed relative to the fixing seat, the sliding rod is clamped on the fixing block.

[0023] In some embodiments, the support seat comprises a second support plate, and the fixing seat is arranged on the second support plate, and the fixing plate is rotationally connected with the second support plate.

[0024] The second support plate is provided with a sliding groove, and the tab limiting block is located in the sliding groove, and the tab limiting block can slide relative to the sliding groove.

[0025] In some embodiments, the side of the fixing seat facing the fixing plate is provided with a second placing slot, and the second placing slot is configured to carry the battery shell. In this way, the battery shell is fixed on the fixing seat.

[0026] In some embodiments, the fixing seat is provided with a second through hole in the thickness direction, and the second through hole penetrates the second placing slot and the second support plate. In this way, after the battery cell enters the battery shell, the battery cell can be pushed out together with the battery shell by extending other components into the second placing slot, and then the battery cell together with the battery shell can be taken out of the second placing slot.

[0027] In some embodiments, the support seat further comprises a bottom plate.

[0028] The second support plate is arranged on the bottom plate, and there is a gap between the second support plate and the bottom plate, and the second support plate is in an inclined structure relative to the bottom plate. In this way, other components can extend into the second placing slot from the corresponding gap, so as to push the battery cell together with the battery shell out of the second placing slot.

[0029] In some embodiments, the limiting piece is arranged on the side of the second support plate away from the bottom plate.

[0030] In this way, when the battery cell and the battery shell are loaded into the corresponding fixing plate and fixing seat, the opening angle of the fixing plate relative to the fixing seat is limited by the limiting piece, so as to avoid the tab between the battery cell and the battery shell being torn and damaged before entering the shell.

[0031] In some embodiments, the tab limiting block comprises a sliding block, a connecting block and at least one limiting strip;

[0032] The connecting block is connected with the sliding block, and the limiting strip is arranged on one side of the connecting block facing the tab;

[0033] The sliding block is slidingly arranged in the sliding groove, and under the condition that the battery shell is carried on the fixing seat and the fixing plate fixes the electrode core, the limiting strip is configured to limit and fix the tab between the electrode core and the battery shell.

[0034] In a second aspect, the application provides a battery production line comprising the tab folding device as described in any one of the embodiments of the application.

[0035] The above description is only a summary of the technical solutions of the application. In order to enable the technical means of the application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the application to be more apparent and easy to understand, the following detailed description of the embodiments of the application is provided. BRIEF DESCRIPTION OF DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the embodiments. The accompanying drawings are intended to depict only various embodiments of the application and therefore should not be considered to limit the scope of the application. Wherever possible, like reference numbers have been used throughout the drawings to depict the same or similar elements. In the drawings:

[0037] Figure 1 Structure diagram of the tab folding device of some embodiments of the application;

[0038] Figure 2 Schematic diagram of the electrode core before the tab is folded into the battery shell in some embodiments of the application;

[0039] Figure 3 Schematic diagram of the electrode core and the battery shell in the tab folding device in some embodiments of the application;

[0040] Figure 4 Schematic diagram of the electrode core after the tab is folded into the battery shell in some embodiments of the application;

[0041] Figure 5 Explosion diagram of Figure 1

[0042] Figure 6 Schematic diagram of the supporting plate in some embodiments of the application;

[0043] Figure 7 Schematic diagram of the tab folding device in the closed state in some embodiments of the application;

[0044] ​Figure 8 The schematic view of the tab limiting block of some embodiments of the present application.

[0045] The reference signs in the detailed description of the embodiments are as follows:

[0046] 10, fixed seat; 101, second placing groove; 102, second through hole; 11, fixed plate; 111, first placing groove; 112, first through hole; 113, guide hole; 114, connecting plate; 115, clamping groove; 12, tab limiting block; 121, sliding block; 122, connecting block; 123, limiting strip; 13, clamping assembly; 131, supporting plate; 1311, clamping block; 1312, first supporting plate; 1313, handle; 132, sliding rod; 133, clamping plate; 14, rotating piece; 15, supporting seat; 151, second supporting plate; 1511, sliding groove; 152, bottom plate; 153, connecting rod; 16, fixed block; 17, limiting piece; 18, battery cell; 19, battery shell; 20, tab; 21, battery monomer. DETAILED DESCRIPTION

[0047] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0049] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise specifically limited.

[0050] In this paper, the "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. The skilled person in the art explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0051] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0052] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0053] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of 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 embodiments of the present application.

[0054] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0055] Next, the present application will be described in detail.

[0056] In the production of lithium ion batteries, it is a key process step to fold the tabs of the battery cell using a tab folding device and then load them into the shell.

[0057] The tab folding device in the related art is used by manually folding the tabs and placing the battery cell into the steel shell: that is, the tabs on the battery cell and the conductive sheets on the battery shell are welded by manual operation, and then the tabs are folded by manual operation and placed into the battery shell together with the battery cell to form a battery monomer. As a result, the tab folding precision and consistency of the battery cell are insufficient, the shell loading accuracy and alignment efficiency are low, and the tabs at the connection between the battery cell and the steel shell are easily torn and damaged due to uncontrollable dynamic stress, resulting in a high battery cell scrap rate.

[0058] Based on the above considerations, in order to solve the problem of low bending accuracy of the folding tab device during use, a folding tab device is designed, which comprises a support seat, a fixed seat, a fixed plate, a tab limiting block, a clamping assembly and a limiting piece, wherein the fixed seat is arranged on the support seat, the fixed seat is configured to carry the battery shell, the fixed plate is rotationally connected with the support seat, the fixed plate can be opened or closed relative to the fixed seat, the fixed plate is configured to fix the battery cell, the tab limiting block is slidingly arranged on the support seat, under the condition that the battery shell is carried on the fixed seat and the fixed plate fixes the battery cell, the tab limiting block is configured to limit the tab between the battery cell and the battery shell; the clamping assembly is arranged on the fixed plate, under the condition that the battery cell is placed on the fixed plate, the clamping assembly is configured to fasten the battery cell to the fixed plate; the limiting piece is arranged on the support seat, under the condition that the fixed plate is opened to a preset angle relative to the fixed seat, the side of the fixed plate away from the fixed seat abuts against the limiting piece.

[0059] In the technical scheme of the embodiment of the application, before the battery cell enters the shell, the battery shell is placed on the fixed seat and the battery cell is fixed on the fixed plate. At this time, the position of the tab limiting block is moved to make the tab limiting block abut against the corresponding tab, preventing the tab from being damaged by non-flexible bending and causing scrap, and then the fixed plate is rotated relative to the support seat and closed with the fixed seat, thereby completing the tab bending and the action of the battery cell entering the battery shell. In this way, the battery cell can be efficiently and accurately entered into the battery shell, and under the limitation of the tab limiting block, the tab bending accuracy and consistency are greatly improved, and the product yield is improved. The overall device is simple and convenient to operate, effectively improves the efficiency of the tab bending process, and saves working time.

[0060] According to some embodiments of the application, Figure 1 is a structural diagram of the folding tab device in the application, Figure 5 is Figure 1 is an exploded view. As Figure 1 and in combination with Figure 5As shown, the application provides a folding tab device, which comprises a support base 15, a fixing base 10, a fixing plate 11, a tab limiting block 12, a clamping assembly 13 and a limiting piece 17. The fixing base 10 is arranged on the support base 15 and is configured to carry a battery shell. The fixing plate 11 is rotationally connected with the support base 15 and can be opened or closed relative to the fixing base 10. The fixing plate 11 is configured to fix a battery cell. The tab limiting block 12 is slidingly arranged on the support base 15. Under the condition that the battery shell is carried on the fixing base 10 and the fixing plate 11 fixes the battery cell, the tab limiting block 12 is configured to limit the tabs between the battery cell and the battery shell. The clamping assembly 13 is arranged on the fixing plate 11. Under the condition that the fixing plate 11 is opened to a preset angle relative to the fixing base 10, the side of the fixing plate 11 away from the fixing base 10 abuts against the limiting piece 17.

[0061] The fixing base 10 in the embodiment can be fixed on the support base 15 by means of bolts or clamping. The fixing plate 11 can be rotationally connected with the support base 15 by means of a rotating piece 14, which can be a bearing seat, a rotating shaft or the like. The specific structure can be determined according to actual conditions, which is not limited in the embodiment.

[0062] The support base 15 can be provided with a sliding groove, and the tab limiting block 12 is partially located in the sliding groove and can slide relative to the sliding groove.

[0063] The clamping assembly 13 in the embodiment can be fixed on the fixing plate 11 by means of bolts or clamping, which is not limited herein.

[0064] The limiting piece 17 in the embodiment can be a limiting rod or a limiting block, which can be fixed on the support base 15 by means of bolts or clamping.

[0065] The preset angle in the embodiment can be 90°, 95° or the like, which can be determined according to actual conditions, which is not limited in the embodiment.

[0066] Before the battery cell with folded tabs is put into the battery shell to form a battery, refer to Figure 2 As shown, the battery cell 18 is electrically connected with the battery shell 19 through the tabs 20, and the battery cell 18 is not put into the battery shell 19.

[0067] When the battery cell 18 and the battery shell 19 are put into the corresponding fixing plate 11 and fixing base 10, the opening angle of the fixing plate 11 relative to the fixing base 10 is limited by the limiting piece 17, so that the tabs 20 between the battery cell 18 and the battery shell 19 are not damaged by tearing before being put into the shell.

[0068] After the battery cell 18 and the battery shell 19 in Figure 2 are loaded into the device for folding tabs, referring to Figure 3 , at this time, the battery shell 19 is fixed on the fixed seat 10, the battery cell 18 is fixed on the fixed plate 11, and then the tab limiting block 12 is slid to make the tab limiting block 12 abut against the rear side of the tab 20 in Figure 3 , at this time, the non-flexible folding of the tab limiting block 12 can be prevented to cause the tab 20 to be torn and damaged, resulting in scrap.

[0069] When the battery cell 18 is placed on the side of the fixed plate 11 facing the fixed seat 10, the battery cell 18 is fastened by the clamping assembly 13, so that the battery cell 18 can be conveniently fastened to the fixed plate 11.

[0070] Then the fixed plate 11 is driven to rotate relative to the support seat 15 by external force, so that the fixed plate 11 is closed with the fixed seat 10. Since the battery cell 18 is fixed on the fixed plate 11 and the tab 20 is connected between the battery cell 18 and the battery shell 19, when the fixed plate 11 is closed relative to the fixed seat 10, the battery cell 18 can be simultaneously driven to rotate relative to the battery shell 19. When the battery cell 18 rotates relative to the battery shell 19, the tab 20 can only be folded in the direction in which the fixed plate 11 is closed relative to the fixed seat 10 when the tab limiting block 12 blocks one side of the tab 20.

[0071] When the fixed plate 11 is closed relative to the fixed seat 10, the battery cell 18 is driven by the fixed plate 11 to enter the corresponding battery shell 19, so that the folding of the tab 20 and the entering of the battery cell 18 into the battery shell 19 are completed. When the battery cell 18 enters the battery shell 19, the battery monomer 21 as shown in Figure 4 can be formed. The device not only makes the battery cell 18 enter the steel shell of the battery cell 18 efficiently and accurately, but also greatly improves the folding precision and consistency of the tab 20 under the limitation of the tab limiting block 12, and improves the product yield. The overall device is simple and convenient to operate, effectively improves the efficiency of the tab 20 folding process, and saves working time.

[0072] According to some embodiments of the present application, as shown in Figure 1 and in combination with Figure 5As shown, the clamping assembly 13 includes a supporting plate 131, a sliding rod 132 and a clamping plate 133, wherein the fixed plate 11 is provided with a first placing groove 111 on the side facing the fixed seat 10, a connecting plate 114 on the side away from the tab limiting block 12, and a guide hole 113 on the side facing the connecting plate 114; the supporting plate 131 is arranged on the side of the fixed plate 11 away from the connecting plate 114 and at least partially extends into the first placing groove 111, the clamping plate 133 is located in the guide hole 113, and the sliding rod 132 is connected with the clamping plate 133 through the connecting plate 114 and is configured to drive the clamping plate 133 to move close to or away from the supporting plate 131; under the condition that the battery cell is placed in the first placing groove 111, the battery cell is fixed between the supporting plate 131 and the clamping plate 133.

[0073] Reference Figure 1 As shown, the upper side of the fixed plate 11 is provided with the connecting plate 114, which can be integrally formed with the fixed plate 11, and the upper side of the fixed plate 11 is provided with the guide hole 113 along the thickness direction of the fixed plate 11, which penetrates the first placing groove 111. The supporting plate 131 can be connected to the lower side of the fixed plate 11, and the supporting plate 131 at least partially extends into the first placing groove 111.

[0074] The clamping plate 133 is located in the guide hole 113, and the clamping plate 133 can move along the up-down direction of the fixed plate 11 relative to the guide hole 113. The sliding rod 132 is connected with the clamping plate 133 through the connecting plate 114, and the sliding rod 132 can be a screw rod, an electric telescopic rod, etc. After the sliding rod 132 is connected with the clamping plate 133 through the connecting plate 114, when the sliding rod 132 is a screw rod, the connecting plate 114 is provided with an internal thread, and the sliding rod 132 is threadedly connected with the connecting plate 114 through the internal thread; when the sliding rod 132 is an electric telescopic rod, the telescopic end of the sliding rod 132 is connected with the clamping plate 133, and at this time, the clamping plate 133 can be moved by the sliding rod 132 to move close to or away from the supporting plate 131.

[0075] Before the battery cell 18 is loaded into the first placing groove 111, the clamping plate 133 is driven by the sliding rod 132 to move away from the supporting plate 131, and after the battery cell 18 is loaded into the first placing groove 111, the clamping plate 133 is driven by the sliding rod 132 to move close to the supporting plate 131. Figure 3 and in combination Figure 1 As shown, at this time, the lower side of the battery cell 18 is supported by the supporting plate 131, and then the clamping plate 133 is moved towards the supporting plate 131 by the sliding rod 132 to clamp the upper side of the battery cell 18, so that the battery cell 18 can be stably fixed between the supporting plate 131 and the clamping plate 133.

[0076] It should be noted that the structure of the clamping assembly is only an example, and other structures can also be used in other alternative solutions. For example, the clamping assembly further includes an elastic member arranged on the side of the clamping plate away from the battery cell, and the elastic member is connected with the fixed plate. The specific structure of the clamping assembly is not specially limited in the present application, as long as the above structure can achieve the purpose of the present application.

[0077] According to some embodiments of the present application, as shown in Figure 5 and in combination with Figure 6 It is shown that the supporting plate 131 includes a clamping block 1311 and a first supporting plate 1312, and the fixed plate 11 is provided with a clamping groove 115 on the side away from the first placing groove 111, the clamping block 1311 is arranged in the clamping groove 115, the first supporting plate 1312 is connected with the clamping block 1311, and the first supporting plate 1312 at least partially extends into the first placing groove 111; under the condition that the battery cell is placed in the first placing groove 111, the battery cell is fixed between the first supporting plate 1312 and the clamping plate 133.

[0078] The clamping block 1311 and the first supporting plate 1312 in the embodiment are integrally formed, when the clamping block 1311 is clamped into the clamping groove 115, the first supporting plate 1312 at least partially extends into the first placing groove 111 from the gap between the lower side of the fixed plate 11 and the right side of the fixed seat 10.

[0079] When the battery cell 18 is placed into the first placing groove 111, the battery cell 18 is just located between the first supporting plate 1312 and the clamping plate 133.

[0080] In the embodiment, the supporting plate 131 is fixed on the fixed plate 11 by clamping, which facilitates dismounting or mounting the supporting plate 131 from the fixed plate 11.

[0081] According to some embodiments of the present application, as shown in Figure 6 The clamping assembly 13 further includes a handle 1313 connected with the clamping block 1311.

[0082] The handle 1313 in the embodiment can be integrally formed with the clamping block 1311, and the handle 1313 is arranged on the clamping block 1311, thereby facilitating moving the clamping block 1311 together with the first supporting plate 1312.

[0083] According to some embodiments of the present application, as shown in Figure 1As shown, the first through hole 112 is arranged on the fixing plate 11 along the thickness direction and penetrates the first placing groove 111. In this way, when the battery cell 18 is placed into the first placing groove 111, and after the battery cell 18 is driven by the fixing plate 11 to be loaded into the corresponding battery shell 19, and then the fixing plate 11 is opened relative to the fixing seat 10, in order to avoid the battery cell 18 being stuck in the first placing groove 111, at this time, other components can be passed through the first through hole 112 to act on the surface of the battery cell 18, so that the battery cell 18 is separated from the first placing groove 111.

[0084] According to some embodiments of the present application, as shown in Figure 5 As shown, the folding tab device further comprises a fixing block 16 arranged on the side surface of the fixing seat 10; under the condition that the fixing plate 11 is closed relative to the fixing seat 10, the sliding rod 132 is clamped to the fixing block 16.

[0085] Referring to Figure 5 As shown, the fixing block 16 in the embodiment can be clamped or connected by bolts on the left side surface of the fixing seat 10. Referring to Figure 7 As shown, when the fixing plate 11 is closed relative to the fixing seat 10, at this time, the sliding rod 132 can be clamped to the fixing block 16, in this way, under the limitation of the sliding rod 132 and the fixing block 16, the fixing plate 11 can be stably closed on the fixing seat 10.

[0086] According to some embodiments of the present application, as shown in Figure 5 As shown, the support seat 15 comprises a second support plate 151, the fixing seat 10 is arranged on the second support plate 151, and the fixing plate 11 is rotationally connected with the second support plate 151; the second support plate 151 is provided with a sliding groove 1511, and the tab limiting block 12 is located in the sliding groove 1511 and can slide relative to the sliding groove 1511.

[0087] The fixing seat 10 in the embodiment can be clamped on the second support plate 151, and the fixing plate 11 is rotationally connected with the second support plate 151 through the rotating piece 14. The structure of the rotating piece 14 can refer to the description above, which will not be described here. The second support plate 151 is provided with a sliding groove 1511, as shown in Figure 5 The sliding groove 1511 is located on the right side of the fixing seat 10, and the tab limiting block 12 is slidingly connected in the sliding groove 1511.

[0088] After the battery cell 18 and the battery shell 19 are placed into the corresponding fixing plate 11 and fixing seat 10, the tab limiting block 12 is slid to make the tab limiting block 12 abut against the corresponding tab 20, so that the non-flexible folding of the tab limiting block 12 can be prevented, and the tab 20 can be prevented from being torn and damaged, thereby avoiding scrapping.

[0089] According to some embodiments of the present application, as shown in Figure 5As shown, the side of the fixing seat 10 facing the fixing plate 11 is provided with a second placement groove 101 configured to carry the battery shell 19. In this way, the battery shell 19 is fixed on the fixing seat 10 through the second placement groove 101.

[0090] According to some embodiments of the present application, as shown in Figure 5 As shown, the fixing seat 10 is provided with a second through hole 102 in the thickness direction, which penetrates the second placement groove 101 and the second support plate 151. In this way, after the battery shell 19 is placed in the second placement groove 101, the second through hole 102 is penetrated by other components to extend into the second placement groove 101, so that the battery shell 19 and the battery cell 18 can be pushed out together, and then the battery shell 19 and the battery cell 18 can be taken out from the second placement groove 101.

[0091] According to some embodiments of the present application, as shown in Figure 1 and in combination with Figure 5 As shown, the support seat 15 further includes a bottom plate 152; wherein the second support plate 151 is arranged on the bottom plate 152, and there is a gap between the second support plate 151 and the bottom plate 152, and the second support plate 151 is inclined relative to the bottom plate 152.

[0092] Referring to Figure 1 As shown, the right side of the second support plate 151 in the embodiment is in close contact with the upper surface of the bottom plate 152, and the left side of the second support plate 151 is connected to the upper surface of the bottom plate 152 through a connecting rod 153. At this time, the second support plate 151 is inclined relative to the bottom plate 152, and there is a gap between the second support plate 151 and the bottom plate 152.

[0093] In this way, since the second through hole 102 penetrates the second placement groove 101 and the second support plate 151, when it is needed to extend other components from the second through hole 102 into the second placement groove 101, it is only needed to extend from the corresponding gap, so that the battery shell 19 and the battery cell 18 can be pushed out from the second placement groove 101.

[0094] According to some embodiments of the present application, as shown in Figure 5 or Figure 7 As shown, the limiting piece 17 is arranged on the side of the second support plate 151 away from the bottom plate 152.

[0095] The limiting piece 17 in the embodiment can be a limiting rod, a limiting block, etc., which can be fixed to the upper surface of the second support plate 151 by means of bolts or clamping.

[0096] The preset angle in the embodiment can be 90°, 95°, etc., which can be determined according to actual conditions, and the embodiments of the present application do not limit this.

[0097] Referring to Figure 3 As shown in the figure, when the battery cell 18 and the battery shell 19 are loaded into the corresponding fixed plate 11 and fixed seat 10, under the limitation of the limiting piece 17, the opening angle of the fixed plate 11 relative to the fixed seat 10 is avoided to be too large, so as to cause the tab 20 between the battery cell 18 and the battery shell 19 to be torn and damaged before entering the shell.

[0098] According to some embodiments of the present application, as Figure 8 As shown in the figure, the tab limiting block 12 includes a sliding block 121, a connecting block 122 and at least one limiting strip 123, wherein the connecting block 122 is connected with the sliding block 121, and the limiting strip 123 is arranged on the side of the connecting block 122 facing the tab; the sliding block 121 is slidingly arranged in the sliding groove 1511, and under the condition that the battery shell is carried on the fixed seat 10 and the fixed plate 11 fixes the battery cell, the limiting strip 123 is configured to limit the tab between the battery cell and the battery shell.

[0099] The sliding block 121, the connecting block 122 and the limiting strip 123 in the embodiment are integrally formed, and the embodiment can include one, two or the like limiting strips 123, which can be determined according to actual conditions, and the embodiments of the present application are not limited thereto.

[0100] Referring to Figure 8 As shown in the figure, the connecting block 122 is located on the upper side of the sliding block 121, and the limiting strip 123 is located on the front side of the connecting block 122. When the sliding block 121 is arranged in the sliding groove 1511, the sliding block 121 can slide relative to the sliding groove 1511. When the battery shell 19 is carried on the fixed seat 10 and the fixed plate 11 fixes the battery cell 18, the sliding block 121 is slid to make the limiting strip 123 abut against the tab 20 between the battery cell 18 and the battery shell 19, so as to limit the tab 20.

[0101] The present application also provides a battery production line, which includes the tab folding device according to any one of the embodiments of the present application.

[0102] The specific structure of the tab folding device in the embodiment is referred to the above-mentioned embodiments. Since all the technical solutions of the above-mentioned embodiments are adopted in the battery production line, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, which will not be repeated here.

[0103] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the claims and the specification of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A folding lug device, characterized in that: include: A support base, the support base comprising a second support plate, wherein the second support plate is provided with a slide groove; a fixing seat, the fixing seat being disposed on the second support plate and configured to bear a battery housing; a fixing plate, the fixing plate being rotatably connected to the second support plate, the fixing plate being capable of opening or closing relative to the fixing seat, and the fixing plate being configured to fix the battery cell; A tab limiting block, the tab limiting block comprising a slider, a connecting block and at least one limiting strip; the connecting block is connected to the slider, and the limiting strip is arranged on the side of the connecting block facing the tab; the slider is slidably arranged in the slide groove, and under the condition that the battery housing is supported on the fixing seat and the fixing plate fixes the battery cell, the limiting strip is configured to limit and fix the tab between the battery cell and the battery housing; a clamping assembly, the clamping assembly being disposed on the fixing plate, and being configured to fasten the battery cell to the fixing plate under the condition that the battery cell is placed on the fixing plate; A limiting member is provided on the support seat. When the fixing plate is opened to a preset angle relative to the fixing seat, a side of the fixing plate facing away from the fixing seat abuts against the limiting member.

2. The folding ear device according to claim 1, characterized in that: The clamping assembly includes a supporting plate, a sliding rod and a clamping plate; A first placement groove is provided on a side of the fixing plate facing the fixing seat, a connecting plate is provided on a side of the fixing plate away from the tab limit block, and a guide hole is provided on a side of the fixing plate facing the connecting plate; The supporting plate is arranged on a side of the fixing plate away from the connecting plate, and the supporting plate at least partially extends into the first placement groove, the clamping plate is located in the guide hole, and the sliding rod passes through the connecting plate and is connected to the clamping plate, and is configured to drive the clamping plate toward or away from the supporting plate; Under the condition that the battery core is placed in the first placement groove, the battery core is fixed between the supporting plate and the clamping plate.

3. The folding ear device according to claim 2, characterized in that: The support plate includes a clamping block and a first support plate. The fixing plate is provided with a clamping slot on a side facing away from the first placement slot. The clamping block is disposed in the clamping slot. The first support plate is connected to the clamping block, and the first support plate at least partially extends into the first placement slot. Under the condition that the battery core is placed in the first placement groove, the battery core is fixed between the first support plate and the clamping plate.

4. The folding ear device according to claim 3, characterized in that: The clamping assembly further includes a handle connected to the clamping block.

5. The electrode tab folding device according to any one of claims 2 to 4, characterized in that: A first through hole is provided on the fixing plate along the thickness direction, and the first through hole passes through the first placement groove.

6. The electrode tab folding device according to any one of claims 2 to 4, characterized in that: The folding lug device further includes a fixing block, which is arranged on a side of the fixing seat; When the fixing plate is closed relative to the fixing seat, the sliding rod is clamped on the fixing block.

7. The folding lug device according to claim 1, characterized in that: A second placement groove is provided on one side of the fixing seat facing the fixing plate, and the second placement groove is configured to bear the battery housing.

8. The electrode tab folding device according to claim 7, characterized in that: A second through hole is provided on the fixing seat along the thickness direction, and the second through hole passes through the second placement groove and the second support plate.

9. The folding tab device according to claim 8, characterized in that: The support base also includes a bottom plate; The second support plate is arranged on the bottom plate, a gap is formed between the second support plate and the bottom plate, and the second support plate is inclined relative to the bottom plate.

10. The electrode tab folding device according to claim 9, characterized in that: The limiting member is arranged on a side of the second supporting plate facing away from the bottom plate.

11. A battery production line, characterized in that: It comprises the folding ear device according to any one of claims 1 to 10.

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