Battery cell rubberizing tool and battery cell rubberizing device

Abstract

The utility model provides a battery cell rubberizing tool and a battery cell rubberizing device, the battery cell rubberizing tool comprises a first pressing piece, the first pressing piece is provided with a plurality of first pressing teeth, the plurality of first pressing teeth are annularly arranged at intervals, and the first pressing teeth are used for pressing part of gummed paper to the end face of a battery cell. According to the battery cell rubberizing tool provided by the utility model, the technical problem that the rubberizing yield of the existing battery cell is relatively low can be solved.

Description

Technical Field

[0001] This utility model relates to the field of battery processing equipment technology, specifically to a battery cell adhesive bonding fixture and a battery cell adhesive bonding device. Background Technology

[0002] During the production of cylindrical batteries, in order to prevent the positive or negative busbar on its end face from short-circuiting with the battery casing, insulating adhesive needs to be applied to the end of the battery cell. Part of the insulating adhesive is pasted to the outer circumference of the end of the battery cell, and the other part is folded over and pasted to the end face of the battery cell. In this way, the insulating adhesive completely covers the periphery of the busbar, achieving insulation between the busbar and the casing.

[0003] In the relevant adhesive application technology, a ring of adhesive tape is first applied to the outer periphery of the end of the battery cell, with a portion of the tape protruding from the end face of the battery cell. Then, a round bowl-shaped fixture is used to fasten the tape to the end of the battery cell, pressing the protruding portion of the tape onto the end face of the battery cell, thus completing the adhesive application.

[0004] However, the round bowl-shaped tooling presses a whole ring of adhesive tape onto the end face of the battery cell. During the pressing process, the adhesive tape in adjacent positions is squeezed against each other, causing it to lift up or flip outwards, which in turn leads to a low adhesive tape yield of the battery cell. Utility Model Content

[0005] The embodiments of this utility model provide a battery cell adhesive application fixture and a battery cell adhesive application device, which can improve the technical problem of low yield of existing battery cell adhesive application.

[0006] In a first aspect, embodiments of this utility model provide a battery cell adhesive application fixture, which includes a first pressing member. The first pressing member is provided with a plurality of first pressing teeth, which are arranged in a ring and spaced apart from each other. The first pressing teeth are used to press a portion of the adhesive paper onto the end face of the battery cell.

[0007] In one embodiment, the cell adhesive applicator further includes a second pressing member, which has a plurality of second pressing teeth arranged in a ring and spaced apart from each other. The second pressing teeth are used to press the other part of the adhesive paper that is not pressed by the first pressing teeth toward the end face of the cell.

[0008] In one embodiment, the first pressing member is further provided with a first through groove, a plurality of first pressing teeth are connected to the inner peripheral wall of the first through groove, the second pressing member is at least partially located in the first through groove, any second pressing tooth corresponds to two adjacent first pressing teeth, and the first pressing member and the second pressing member can move relative to each other along the axial direction of the first through groove.

[0009] In an embodiment, the first pressing member has opposite first and second end faces, the first end face is configured to face the battery cell, the second end face is configured to face away from the battery cell, and the first pressing teeth are arranged in a ring around a central axis; the first pressing teeth are provided with a first inclined surface configured to contact the adhesive tape, the first inclined surface has opposite first and second inclined ends in the inclined direction, the first inclined end is closer to the central axis than the second inclined end, and the first inclined end is closer to the second end face than the second inclined end.

[0010] In an embodiment, the first inclined surface has an inclination angle relative to the second end face greater than or equal to 25° and less than or equal to 35°.

[0011] In an embodiment, in the arrangement direction of the first pressing teeth, the first pressing teeth have opposite first and second side walls; the extension directions of the first and second side walls are arranged in a cross manner, and the included angle between the first and second side walls is greater than or equal to 20° and less than or equal to 30°; and / or, the first side wall is parallel and spaced apart from the second side wall on another first pressing tooth adjacent thereto, and the spacing between the parallel and spaced apart first and second side walls is greater than or equal to 4.5 mm and less than or equal to 5.5 mm.

[0012] In an embodiment, the first pressing member has a first end face configured to face the battery cell, and the first pressing member is further provided with a second through groove coaxially communicated with the first through groove, the second through groove is closer to the first end face than the first through groove;

[0013] the inner peripheral wall of the second through groove is inclined to form a second inclined surface, the second inclined surface has opposite third and fourth inclined ends in the inclined direction, the third inclined end is closer to the central axis of the second through groove than the fourth inclined end, and the third inclined end is closer to the first through groove than the fourth inclined end; and / or, the inner peripheral wall of the first through groove and the inner peripheral wall of the second through groove are further connected by a circular arc transition surface.

[0014] In an embodiment, the second pressing member has a third end face configured to face the battery cell, the third end face is provided with a recessed groove, and the recessed groove is communicated with the gap between two adjacent second pressing teeth.

[0015] In an embodiment, the first pressing member is configured to rotate between a first angle and a second angle; when the first pressing member is at the first angle, the first pressing teeth are used to press part of the adhesive tape towards the end face of the battery cell; when the second pressing member is at the second angle, the first pressing teeth are used to press another part of the adhesive tape that is not pressed towards the end face of the battery cell; or the first pressing member and the second pressing member are respectively located at different stations to respectively paste adhesive tape on the battery cells at the different stations.

[0016] In a second aspect, the embodiments of the utility model provide a battery cell adhesive taping device, the battery cell adhesive taping device includes the battery cell adhesive taping tool of any one of the above embodiments.

[0017] The embodiments of the utility model have the advantages of:

[0018] In the embodiments of the utility model, the first pressing member is provided with a plurality of first pressing teeth, the plurality of first pressing teeth are arranged in a ring shape and are spaced apart from each other, and the plurality of first pressing teeth are used to press part of the adhesive tape towards the end face of the battery cell. That is, during the adhesive taping process, the first pressing member can press part of the adhesive tape protruding from the end face of the battery cell towards the end face of the battery cell through the plurality of first pressing teeth. Because the plurality of first pressing teeth are spaced apart from each other, the plurality of positions on the adhesive tape pressed by the plurality of first pressing teeth are also spaced apart from each other. The adhesive tape at the plurality of positions pressed is not easy to be pressed from each other, and is not easy to be raised, folded and the like, thereby improving the adhesive taping yield of the battery cell.

[0019] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art without creative effort.

[0021] Figure 1 It is the structure schematic view of the first pressing member in the battery cell adhesive taping tool of the present application;

[0022] Figure 2 It is the front view of the first pressing member in Figure 1

[0023] Figure 3 It is the structure sectional view of the first pressing member in Figure 1

[0024] Figure 4 ​​is a structural schematic view of an embodiment of a second pressing member in a battery cell rubberizing tool of the application;

[0025] Figure 5 is a structural schematic view of an embodiment of a battery cell rubberizing tool of the application;

[0026] Figure 6 is a structural schematic view of an embodiment of a battery cell rubberizing device of the application;

[0027] Figure 7 is a structural sectional view of a battery cell to which the battery cell rubberizing tool of the application is applied. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be apparently and completely described in conjunction with the drawings of the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments of the application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application. In addition, it should be understood that the specific embodiments described herein are only used for illustrating and explaining the application, and are not used for limiting the application. In the application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the drawing direction in the drawings. The "inner" and "outer" refer to the contour of the device.

[0029] To improve the technical problem of low rubberizing yield of the existing battery cell, in a first aspect, as shown in Figure 1 , an embodiment of the application provides a battery cell rubberizing tool 100, which comprises a first pressing member 10, the first pressing member 10 is provided with a plurality of first pressing teeth 11, the plurality of first pressing teeth 11 are arranged in a ring shape and are spaced from each other, and the first pressing teeth 11 are used for pressing part of the rubber paper 50 to the end face of the battery cell 40.

[0030] Specifically, the first pressing member 10 is made of a hard material to have sufficient hardness to press the rubber paper 50, for example, the first pressing member 10 can be made of a metal material, a hard plastic, a wooden material, etc., and the first pressing member 10 is provided with a plurality of first pressing teeth 11, the plurality of first pressing teeth 11 can be arranged on one end face of the first pressing member 10, so that the first pressing teeth 11 are in contact with the rubber paper 50 protruding from the end face of the battery cell 40 (for reference Figure 7 ). Alternatively, the first pressing member 10 can be provided as a cylinder, and then a plurality of first pressing teeth 11 are arranged on the outer circumferential surface of the first pressing member 10. Alternatively, as shown in Figure 1 , a groove can also be arranged on the first pressing member 10, and the plurality of first pressing teeth 11 are arranged on the inner wall of the groove.

[0031] The plurality of first pressing teeth 11 are arranged in a ring shape. For example, when the rubber is attached to the cylindrical battery cell 40, the plurality of first pressing teeth 11 are arranged in a ring shape to better press the rubber 50 attached to the battery cell 40. For another example, when the battery cell 40 is in an elliptical shape, a square shape, or other shapes, the arrangement shape of the plurality of first pressing teeth 11 can be designed adaptively, as long as the plurality of first pressing teeth 11 can contact the part of the rubber 50 protruding from the end surface of the battery cell 40 and press the contacted rubber 50 to the end surface of the battery cell 40. In order to better illustrate the technical concept of the present application, the present specification and the accompanying drawings take the plurality of first pressing teeth 11 arranged in a ring shape as an example for description.

[0032] As shown in Figure 1 , on the basis of the plurality of first pressing teeth 11 arranged in a ring shape, the radial length of each first pressing tooth 11 can be set to be relatively long, so that the first pressing member 10 can be applied to the rubber attachment of the battery cell 40 with different outer diameters, improving the versatility of the battery cell rubber attachment tool 100.

[0033] The first pressing tooth 11 is used to press the part of the rubber 50 to the end surface of the battery cell 40. Specifically, reference can be made to Figure 7 , before the rubber attachment is assisted by the first pressing member 10, the rubber 50 needs to be attached to the end of the battery cell 40, and the rubber 50 protrudes from the end surface of the battery cell 40. The part of the rubber 50 protruding from the end surface of the battery cell 40 is pressed and attached by the first pressing member 10. In the present specification, the rubber 50 pressed by the first pressing tooth 11 or the second pressing tooth 21 refers to the part of the rubber protruding from the end surface of the battery cell 40.

[0034] Please refer to Figure 1 and Figure 7 , in actual rubber attachment, the battery cell 40 with a circle of attached rubber 50 can be coaxially opposed to the first pressing member 10, then the first pressing member 10 is driven to move towards the battery cell 40, or the battery cell 40 is driven to move towards the first pressing member 10. With the gradual approach of the first pressing member 10 and the battery cell 40, the plurality of first pressing teeth 11 will contact the rubber 50, and with the continuous approach of the first pressing tooth 11 and the end surface of the battery cell 40, the position of the rubber 50 corresponding to the first pressing tooth 11 will be pressed to the end surface of the battery cell 40, so that a part of the rubber 50 is folded to the end surface of the battery cell 40, and then attached to the end surface of the battery cell 40.

[0035] It can be understood that because the plurality of first pressing teeth 11 are spaced from each other, the plurality of positions on the rubber 50 pressed by the plurality of first pressing teeth 11 are also spaced from each other. The plurality of positions on the rubber 50 pressed by the plurality of first pressing teeth 11 are not easy to be extruded in the circumferential direction, so as to avoid the rubber 50 from being raised or folded, thereby improving the rubber attachment yield of the battery cell 40.

[0036] It should be noted that the position of the adhesive tape 50 which is not pressed by the first pressing member 10 can be attached to the end face of the battery cell 40 in various ways.

[0037] For example, in an embodiment, the first pressing member 10 is configured to be rotatable between a first angle and a second angle, when the first pressing member 10 is at the first angle, the first pressing teeth 11 are used to press a part of the adhesive tape 50 towards the end face of the battery cell 40, and when the second pressing member 20 is at the second angle, the first pressing teeth 11 are used to press another part of the adhesive tape 50 which is not pressed towards the end face of the battery cell 40.

[0038] That is, in the embodiment, when the battery cell adhesive attaching tool 100 is installed in the battery cell adhesive attaching device 200 and used to assist the adhesive attaching of the battery cell 40, the first pressing member 10 can be rotatably installed so that the first pressing member 10 is rotatable between the first angle and the second angle. In actual adhesive attaching, the first pressing member 10 can be first set at the first angle so that a part of the adhesive tape 50 is first pressed towards the end face of the battery cell 40 by the first pressing teeth 11, and then the first pressing member 10 is rotated to the second angle so that the part of the adhesive tape 50 which is not pressed is pressed towards the end face of the battery cell 40 by the first pressing teeth 11, thereby achieving the attachment of the whole circle of the adhesive tape 50 on the end face of the battery cell 40.

[0039] For another example, in another embodiment, as shown in Figure 4 the battery cell adhesive attaching tool 100 further comprises a second pressing member 20, the second pressing member 20 is provided with a plurality of second pressing teeth 21, the plurality of second pressing teeth 21 are arranged in a ring shape and spaced from each other, and the second pressing teeth 21 are used to press another part of the adhesive tape 50 which is not pressed by the first pressing teeth 11 towards the end face of the battery cell 40.

[0040] Specifically, in the embodiment, the second pressing member 20 can be configured in the same way as the first pressing member 10, at this time, it is equivalent to pressing a part of the adhesive tape 50 by one first pressing member 10, and then pressing another part of the adhesive tape 50 which is not pressed by another first pressing member 10.

[0041] Of course, the second pressing member 20 can also be configured differently from the first pressing member 10, for example, in Figure 4 the second pressing member 20 is approximately cylindrical in shape, and the plurality of second pressing teeth 21 are distributed along the circumferential direction of the second pressing member 20 at the outer periphery of the second pressing member 20, please refer to Figure 1 and Figure 4 , the first pressing teeth 11 and the second pressing teeth 21 are different in shape and area, but in the cooperation of the plurality of first pressing teeth 11 and the plurality of second pressing teeth 21, the whole circle of the adhesive tape 50 can be pressed on the end face of the battery cell 40.

[0042] Specifically, during actual gluing, a part of the adhesive paper 50 can be pressed to the end face of the battery cell 40 by the plurality of first pressing teeth 11, and then another part of the adhesive paper 50 can be pressed to the end face of the battery cell 40 by the plurality of second pressing teeth 21, so that the entire circle of the adhesive paper 50 can be pressed and pasted on the end face of the battery cell 40.

[0043] It should be noted that, in order to avoid mutual extrusion between the adhesive papers 50 at adjacent positions, the first pressing member 10 and the second pressing member 20 need to press the adhesive paper 50 in a sequence, for example, the first pressing member 10 can press the adhesive paper 50 first, and then the second pressing member 20 can press the adhesive paper 50, or the second pressing member 20 can press the adhesive paper 50 first, and then the first pressing member 10 can press the adhesive paper 50.

[0044] It should be noted that the first pressing member 10 and the second pressing member 20 can be arranged at different stations or at the same station, as long as they can press the adhesive paper 50 in a sequence.

[0045] For example, in an embodiment, the first pressing member 10 and the second pressing member 20 are arranged at different stations respectively to glue the battery cell 40 at different stations. Specifically, in this embodiment, the battery cell gluing tool 100 is applied to a battery cell gluing device 200, and the battery cell gluing device 200 includes a conveying mechanism 220 (for reference Figure 6 ), which is used to convey the battery cell 40 to different stations. The first pressing member 10 and the second pressing member 20 can be installed at different stations respectively, and during gluing, the conveying mechanism 220 first conveys the battery cell 40 to the first pressing member 10, and the first pressing member 10 presses and pastes a part of the adhesive paper 50 on the end face of the battery cell 40 through the plurality of first pressing teeth. Then the conveying mechanism 220 conveys the battery cell 40 to the second pressing member 20, and the second pressing member 20 presses and pastes another part of the adhesive paper 50 that has not been pressed on the end face of the battery cell 40 through the plurality of second pressing teeth 21.

[0046] It can be understood that, by arranging the first pressing member 10 and the second pressing member 20 at different stations respectively, the first pressing member 10 and the second pressing member 20 can press the adhesive paper 50 in a sequence, and each station can only perform one action, which is conducive to simplifying the structure of the battery cell gluing device 200 and improving the gluing efficiency.

[0047] For another example, in another embodiment, as shown in Figure 1 , the first pressing member 10 is further provided with a first through groove 12, and the plurality of first pressing teeth 11 are connected to the inner peripheral wall of the first through groove 12, please also refer to Figure 5The second pressing member 20 is at least partially located in the first through slot 12, and any second pressing tooth 21 corresponds to the space between two adjacent first pressing teeth 11. The first pressing member 10 and the second pressing member 20 can move relative to each other along the axial direction of the first through slot 12.

[0048] That is, in the embodiment, the first pressing member 10 and the second pressing member 20 are nested with each other, any second pressing tooth 21 corresponds to the space between two adjacent first pressing teeth 11, and any first pressing tooth 11 also corresponds to the space between two adjacent second pressing teeth 21, so that the first pressing member 10 and the second pressing member 20 do not interfere with each other when moving relative to each other.

[0049] It can be understood that, by nesting the first pressing member 10 and the second pressing member 20 with each other and enabling them to move relative to each other, the first pressing member 10 and the second pressing member 20 can press the adhesive tape 50 in sequence and reduce the occupied space of the battery adhesive taping tool 100, thereby facilitating the miniaturization design of the battery adhesive taping device 200.

[0050] Optionally, in an embodiment, as shown in Figure 3 , the first pressing member 10 has opposite first and second end faces 13 and 14, the first end face 13 is used to face the battery 40, the second end face 14 is used to face away from the battery 40, and a plurality of first pressing teeth 11 are arranged annularly around a central axis 30. Crucially, in the embodiment, the first pressing tooth 11 is provided with a first inclined surface 111 for contacting the adhesive tape 50, the first inclined surface 111 has opposite first and second inclined ends 1111 and 1112 in the inclined direction thereof, the first inclined end 1111 is closer to the central axis 30 than the second inclined end 1112, and the first inclined end 1111 is closer to the second end face 14 than the second inclined end 1112.

[0051] Please understand that Figure 3 and Figure 7 When the first inclined surface 111 on the first pressing tooth 11 contacts the adhesive tape 50 and continues to approach the battery 40, the adhesive tape 50 will gradually fold towards the center of the battery 40 under the guidance of the first inclined surface 111, which can avoid the situation that the pressed part of the adhesive tape 50 is wrinkled or folded when being pressed by the first pressing tooth 11, so that the adhesive tape 50 can be more flatly pasted on the end face of the battery 40.

[0052] It should be noted that, because the first pressing tooth 11 presses the adhesive tape 50 to the end face of the battery 40 through the first inclined surface 111, and the end face of the battery 40 is a plane, the first pressing tooth 11 cannot completely fit the pressed part of the adhesive tape 50 to the end face of the battery 40. At this time, the part of the adhesive tape 50 that is not completely fitted can be hit by the flattening mechanism 230 in the battery adhesive taping device 200, so that the adhesive tape 50 is completely fitted to the end face of the battery 40.

[0053] Of course, for the battery cell 40 whose positive or negative busbar protrudes from the end face of the winding core, the first inclined surface 111 can make the adhesive tape 50 better adhere to the busbar.

[0054] In addition, it can also be understood that when the first pressing teeth 11 make part of the adhesive tape 50 inclined through the first inclined surface 111, the other part of the adhesive tape 50 not pressed by the first pressing teeth 11 will also be inclined, and when the second pressing member 20 presses the other part of the adhesive tape 50 not pressed by the first pressing teeth 11 through the second pressing teeth 21, the adhesive tape 50 will not be easily wrinkled or folded, and will be more flatly adhered to the end face of the battery cell 40. Therefore, the surface of the second pressing teeth 21 for contacting the adhesive tape 50 can be a flat surface to enable the pressed part of the adhesive tape 50 to be completely attached to the end face of the battery cell 40.

[0055] Optionally, in an embodiment, as shown in Figure 3 The inclination angle a of the first inclined surface 111 relative to the second end face 14 is greater than or equal to 25° and less than or equal to 35°, and the specific inclination angle a can be 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, 35°, etc. It can be understood that if the inclination angle a of the first inclined surface 111 relative to the second end face 14 is too small, the guiding effect of the folding direction of the adhesive tape 50 to the center of the battery cell 40 is not obvious enough, and the adhesive tape 50 is still more likely to be wrinkled or folded; and if the inclination angle a of the first inclined surface 111 relative to the second end face 14 is too large, the inclination angle of the adhesive tape 50 to the center of the battery cell 40 is smaller, which is not conducive to the adhesive tape 50 being flatly hit onto the end face of the battery cell 40 by the flattening mechanism 230. Therefore, by controlling the inclination angle a of the first inclined surface 111 relative to the second end face 14 to be between 25° and 35°, the folding direction of the adhesive tape 50 can be better guided, and the folding angle of the adhesive tape 50 can be ensured to facilitate the adhesive tape 50 being better hit onto the end face of the battery cell 40 by the flattening mechanism 230.

[0056] Optionally, in an embodiment, as shown in Figure 2As shown, in the arrangement direction of the plurality of first pressing teeth 11, the first pressing tooth 11 has a first side wall 112 and a second side wall 113 opposite to each other, the extending directions of the first side wall 112 and the second side wall 113 are crossly arranged, and the included angle β between the first side wall 112 and the second side wall 113 is greater than or equal to 20° and less than or equal to 30°. Specifically, the included angle β between the first side wall 112 and the second side wall 113 can be 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, 30°, etc. It can be understood that if the included angle β between the first side wall 112 and the second side wall 113 is too small, the width of the first pressing tooth 11 in the circumferential direction of the first through groove 12 will be relatively small, and the structural strength will be weak, and the first pressing tooth 11 is prone to breakage. If the included angle β between the first side wall 112 and the second side wall 113 is too large, the width of the first pressing tooth 11 in the circumferential direction of the first through groove 12 will be relatively large, and the arc length of the rubber sheet 50 pressed by each first pressing tooth 11 will be relatively long. The different positions on the rubber sheet 50 being pressed are also prone to mutual extrusion in the circumferential direction.

[0057] Therefore, by controlling the included angle β between the first side wall 112 and the second side wall 113 to be between 20° and 30°, the structural strength of the first pressing tooth 11 can be ensured, and the different positions on the rubber sheet 50 being pressed are not prone to mutual extrusion in the circumferential direction, thereby ensuring the rubber sticking yield.

[0058] Optionally, in an embodiment, as shown in Figure 2 The first side wall 112 is parallel and spaced apart from the second side wall 113 on the adjacent another first pressing tooth 11, and the spacing between the parallel and spaced apart first side wall 112 and the second side wall 113 is greater than or equal to 4.5 mm and less than or equal to 5.5 mm. Specifically, the spacing can be 4.5 mm, 4.6 mm, 4.7 mm, 4.8 mm, 4.9 mm, 5 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, etc. It can be understood that if the spacing between the parallel and spaced apart first side wall 112 and the second side wall 113 is too small, the arrangement between the plurality of first pressing teeth 11 will be relatively dense, the structure will be relatively complex, and the relative movement between the first pressing tooth 11 and the second pressing tooth 21 will be not conducive. If the spacing between the parallel and spaced apart first side wall 112 and the second side wall 113 is too large, the arrangement between the plurality of first pressing teeth 11 will be relatively loose, resulting in that the arc length of the rubber sheet 50 pressed by the second pressing tooth 21 will be relatively long, and the different positions on the rubber sheet 50 being pressed are also prone to mutual extrusion in the circumferential direction.

[0059] Therefore, in the embodiment, the interval between the first side wall 112 and the second side wall 113 is controlled to be between 4.5 mm and 5.5 mm, so that the structure of the first pressing member 10 is simplified, the relative movement between the first pressing tooth 11 and the second pressing tooth 21 is facilitated, and the arc length of the adhesive tape 50 pressed by the second pressing tooth 21 is avoided to be too long, so that the adhesive tape 50 is not easily pressed in the circumferential direction.

[0060] Optionally, in an embodiment, as shown in Figure 3 the first pressing member 10 has a first end surface 13 facing the battery cell 40, and the first pressing member 10 is further provided with a second through groove 15 coaxially communicated with the first through groove 12, and the second through groove 15 is closer to the first end surface 13 than the first through groove 12, that is, when the adhesive tape 50 is pasted, the adhesive tape 50 will first pass through the second through groove 15, and then contact the first pressing tooth 11.

[0061] In the process of the first pressing member 10 approaching the battery cell 40, the battery cell 40 and the first pressing member 10 are inevitably not coaxial, so that the adhesive tape 50 will directly contact other positions of the first pressing member 10 and be wrinkled, folded or everted. Therefore, in the embodiment, the inner peripheral wall of the second through groove 15 is inclined to form a second inclined surface 151, the second inclined surface 151 has opposite third and fourth inclined ends 1511 and 1512 in the inclined direction, the third inclined end 1511 is closer to the central axis 30 of the second through groove 15 than the fourth inclined end 1512, and the third inclined end 1511 is closer to the first through groove 12 than the fourth inclined end 1512. When the battery cell 40 and the first pressing member 10 are not coaxial, the adhesive tape 50 will contact the second inclined surface 151. Because the second inclined surface 151 is inclined, the adhesive tape 50 will be gradually folded towards the center of the battery cell 40 under the guidance of the second inclined surface 151, so that the adhesive tape 50 is avoided to be directly pressed to be wrinkled, folded or everted.

[0062] Optionally, in an embodiment, as shown in Figure 3 the inner peripheral wall of the first through groove 12 and the inner peripheral wall of the second through groove 15 are further connected with a circular arc transition surface 16, and because the first pressing tooth 11 is connected to the inner peripheral wall of the first through groove 12, the circular arc transition surface 16 can make the adhesive tape 50 more smoothly contact the first inclined surface 111 of the first pressing tooth 11, so that the adhesive tape 50 is avoided to be jammed or folded at the boundary between the first through groove 12 and the second through groove 15.

[0063] Optionally, in an embodiment, as shown in Figure 4As shown, the second pressing member 20 has a third end face 22 facing the electric core 40, and the third end face 22 is provided with a recess 221, which is communicated with the gap between the two adjacent second pressing teeth 21, and since any first pressing tooth 11 is located between the two adjacent second pressing teeth 21, the first pressing tooth 11 can extend into the recess 221 through the gap between the two adjacent second pressing teeth 21, that is, the length of the first pressing tooth 11 in the radial direction of the first through groove 12 is designed to be larger, thereby making the electric core gluing tool 100 applicable to the gluing of electric cores 40 with more outer diameter sizes.

[0064] In addition, by arranging the recess 221, the fastener (such as a bolt) for connecting the second pressing member 20 and the driving member 210 can be located in the recess 221, thereby avoiding the fastener from colliding with the electric core 40. At this time, the bottom of the recess 221 can be provided with a connecting hole 23 for the fastener to pass through and connect with the driving member 210.

[0065] In a second aspect, as shown in the accompanying drawings, Figure 6 The embodiment of the utility model provides a kind of electric core gluing device 200, and electric core gluing device 200 includes the electric core gluing tool 100 of any one embodiment above. Since the electric core gluing device 200 of the present application adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0066] Optionally, in an embodiment, as shown in the accompanying drawings, Figure 6 The gluing device further includes a driving member 210, which is connected with the electric core gluing tool 100 and is used to drive the electric core gluing tool 100 to move relative to the electric core 40. Specifically, in the structural scheme shown in the accompanying drawings, Figure 6 The driving member 210 includes a first driving member 211 and a second driving member 212. The first driving member 211 can be a pneumatic cylinder, a hydraulic cylinder, a motor or the like. The first driving member 211 is connected with the first pressing member 10 and is used to drive the first pressing member 10 to move relative to the electric core 40, such as driving the first pressing member 10 to move towards the electric core 40. The second driving member 212 is connected with the second pressing member 20 and is used to drive the second pressing member 20 to move relative to the electric core 40, such as driving the second pressing member 20 to move towards the electric core 40.

[0067] It should be noted that when the first pressing member 10 needs to rotate between the first angle and the second angle, the first driving member 211 can be a motor or a combination of a motor and other transmission members to drive the first pressing member 10 to rotate.

[0068] Optionally, in an embodiment, as shown in the accompanying drawings, Figure 6As shown, the battery cell rubberizing device 200 further comprises a conveying mechanism 220 and a flattening mechanism 230, the conveying mechanism 220 is used to convey the battery cell 40 from the battery cell rubberizing tool 100 to the flattening mechanism 230, and the flattening mechanism 230 is used to beat the rubber paper 50 on the end face of the battery cell 40. Specifically, in the embodiment, the conveying mechanism 220 can be a conveying guide rail, and the conveying guide rail is provided with a clamp for mounting and positioning the battery cell 40, and the clamp can slide on the conveying guide rail, thereby conveying the battery cell 40 to different workstations.

[0069] The battery cell rubberizing tool 100 and the flattening mechanism 230 are arranged at intervals along the extension direction of the conveying guide rail, the battery cell 40 is conveyed by the conveying mechanism 220 to the flattening mechanism 230 after completing the preliminary rubberizing at the battery cell rubberizing tool 100, the flattening mechanism 230 can be provided with a beating block, the beating block is configured to reciprocate along the axial direction of the battery cell 40, thereby beating the rubber paper 50 on the end face of the battery cell 40, avoiding the situation that the rubber paper 50 is not completely pasted or firmly pasted, and improving the rubberizing yield of the battery cell 40.

[0070] The above has carried on the detailed introduction to the embodiment of the utility model, the principle and the implementation mode of the utility model have been described in this article by applying specific examples, the above embodiment is only used for helping understanding the method and the core thought of the utility model; Meanwhile, for the person skilled in the art, according to the thought of the utility model, there will be changes in specific implementation mode and application range, and the above-mentioned is not understood as the limitation of the utility model.

Claims

1. An electrode cell taping tool, characterized by, The first pressing member is provided with a plurality of first pressing teeth arranged in a ring shape and spaced apart from each other, and the first pressing teeth are used to press part of the adhesive tape to the end face of the battery cell. The battery cell adhesive tape tool further comprises a second pressing member provided with a plurality of second pressing teeth arranged in a ring shape and spaced apart from each other, and the second pressing teeth are used to press another part of the adhesive tape that is not pressed by the first pressing teeth to the end face of the battery cell.

2. The battery cell taping tooling of claim 1, wherein, The first pressing member is further provided with a first through groove, and a plurality of first pressing teeth are connected to the inner circumferential wall of the first through groove, and the second pressing member is at least partially located in the first through groove, and any second pressing tooth corresponds to the space between two adjacent first pressing teeth, and the first pressing member and the second pressing member can move relative to each other in the axial direction of the first through groove.

3. The cell taping tool of claim 2, wherein, The first pressing member has opposite first and second end faces, the first end face is used to face the battery cell, and the second end face is used to face away from the battery cell, and a plurality of first pressing teeth are arranged in a ring shape around a central axis.

4. The cell taping tool of any of claims 1-3, wherein, The first pressing teeth are provided with a first inclined surface for contacting the adhesive tape, and the first inclined surface has opposite first and second inclined ends in the inclined direction, the first inclined end is closer to the central axis than the second inclined end, and the first inclined end is closer to the second end face than the second inclined end. The inclination angle of the first inclined surface relative to the second end face is greater than or equal to 25° and less than or equal to 35°.

5. The cell taping tool of claim 4, wherein, In the arrangement direction of the plurality of first pressing teeth, the first pressing teeth have opposite first and second side walls; 6. The cell taping tool of any of claims 1-3, wherein, The extension directions of the first and second side walls are arranged in a cross shape, and the included angle between the first and second side walls is greater than or equal to 20° and less than or equal to 30°; and / or, the first side wall is parallel and spaced apart from the second side wall on another adjacent first pressing tooth, and the spacing between the parallel and spaced apart first and second side walls is greater than or equal to 4.5 mm and less than or equal to 5.5 mm. The first pressing member has a first end face for facing the battery cell, and the first pressing member is further provided with a second through groove coaxially communicated with the first through groove, and the second through groove is closer to the first end face than the first through groove; 7. The cell taping tool of claim 3, wherein, The inner circumferential wall of the second through groove is inclined to form a second inclined surface, and the second inclined surface has opposite third and fourth inclined ends in the inclined direction, the third inclined end is closer to the central axis of the second through groove than the fourth inclined end, and the third inclined end is closer to the first through groove than the fourth inclined end; and / or, the inner circumferential wall of the first through groove and the inner circumferential wall of the second through groove are further connected by a circular arc transition surface. The second pressing member has a third end face for facing the battery cell, and the third end face is provided with a recess, and the recess is communicated with the gap between two adjacent second pressing teeth.

8. The cell taping tool of any one of claims 2 or 3, wherein, ​ 9. The cell taping tool of claim 2, wherein, The first pressing member is configured to be rotatable between a first angle and a second angle; when the first pressing member is at the first angle, the first pressing tooth is used to press part of the adhesive tape towards the end face of the battery cell; when the second pressing member is at the second angle, the first pressing tooth is used to press another part of the adhesive tape that is not pressed towards the end face of the battery cell; Alternatively, the first pressing member and the second pressing member are respectively located at different workstations to respectively paste adhesive tapes on the battery cells at the different workstations.

10. A battery cell adhesive bonding device, characterized in that, The battery cell pasting adhesive tape tooling comprises the battery cell pasting adhesive tape tooling according to any one of claims 1-9.

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