Pallet and battery production system

Abstract

The present application provides a tray and a battery production system, which belongs to the field of battery technology. The tray includes a base and at least one group of positioning components. The base has a supporting position for carrying an electrode assembly, and the electrode assembly has a first side perpendicular to a first direction, and a second side perpendicular to a second direction, and the first direction is perpendicular to the second direction. The positioning assembly is movably arranged on the base, and each group of positioning assemblies includes two positioning members, at least one of the two positioning members is a deformable positioning member, and the deformable positioning member is used to contact and deform with the corner where the first side and the second side intersect, and the first part of the deformed deformable positioning member is used to limit the first side along the first direction, and the second part of the deformed deformable positioning member is used to limit the second side along the second direction. The tray of the present application can be compatible with electrode assemblies of different sizes through the adaptive deformation of the deformable positioning member, and the overall production efficiency is correspondingly improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a tray and a battery production system. Background Art

[0002] A battery cell is the smallest unit that makes up a battery device. A battery cell includes an electrode assembly for electrochemical reactions. During the production process of the electrode assembly, the electrode assembly needs to be transported to each workstation by corresponding carrying equipment. When producing electrode assemblies of different sizes, the corresponding carrying equipment needs to be replaced to adapt to the electrode assembly, resulting in reduced production efficiency. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems in the background technology. To this end, one object of the present application is to provide a tray and a battery production system to improve the compatibility of the tray.

[0004] An embodiment of the first aspect of the present application provides a tray. The tray includes a base and at least one group of positioning components. The base has a supporting position for carrying an electrode assembly, and the electrode assembly has a first side perpendicular to a first direction, and a second side perpendicular to a second direction, and the first direction is perpendicular to the second direction. The positioning assembly is movably arranged on the base, and each group of positioning assemblies includes two positioning members, at least one of the two positioning members is a deformable positioning member, and the deformable positioning member is used to contact and deform with the corner where the first side and the second side intersect, and the first part of the deformed deformable positioning member is used to limit the first side along the first direction, and the second part of the deformed deformable positioning member is used to limit the second side along the second direction.

[0005] In the technical solution of the embodiment of the present application, a deformable positioning piece is provided. The deformable positioning piece can produce adaptive deformation according to the outer contour of the electrode assembly. The deformed deformable positioning piece can fully fit and adapt to the surface of the electrode assembly and position the electrode assembly from two directions perpendicular to each other, thereby meeting the positioning requirements of the electrode assembly of this size. Therefore, the positioning requirements of electrode assemblies of different sizes can be met without replacing the corresponding tray, thereby improving the compatibility of the tray, simplifying the frequent disassembly and assembly operations caused by replacing the tray, and correspondingly improving the overall production efficiency.

[0006] In some embodiments, each set of positioning components includes a mounting block and a locking member. The mounting block is movably disposed on the base along a first direction, and the mounting block is used to carry a deformable positioning member, and the deformable positioning member includes a plurality of sheets stacked and arranged along a second direction, and the sheets are configured to be movable relative to the mounting block along the first direction. The locking member is used to provide a locking force along the second direction to lock the plurality of sheets to the mounting block. Through the misaligned movement of the sheets and the locking of the locking member, the compatibility debugging of the tray is completed.

[0007] In some embodiments, the locking member includes a cam, the mounting block is provided with a groove, one end of the sheet away from the electrode assembly extends into the groove, the cam is rotatably arranged on the mounting block, and the cam is configured to provide locking force to the multiple sheets through rotation adjustment. The multiple sheets are released and locked by the rotation of the cam, thereby completing the compatibility debugging of the tray.

[0008] In some embodiments, the sheet body includes a first sheet body portion and a second sheet body portion connected to each other, the first sheet body portion is at least partially inserted into the groove, the second sheet body portion is located outside the groove and is used to contact the electrode assembly, the size of the second sheet body portion along the third direction is greater than or equal to the size of the electrode assembly along the third direction, and the third direction is perpendicular to the plane defined by the first direction and the second direction. By setting the sheet body as a two-part structure, the locking of the sheet body can be achieved and the reliability of positioning can be improved.

[0009] In some embodiments, the locking member further comprises a driving member connected to the cam, and the driving member is used to drive the cam to rotate, so as to conveniently realize the rotation of the cam, and then realize the release and locking of the sheet.

[0010] In some embodiments, there are multiple groups of positioning components, and the multiple groups of positioning components are arranged at intervals along the second direction, and each group of positioning components includes two deformable positioning members arranged on both sides of the supporting position along the first direction. By setting up multiple groups of positioning components, the positioning accuracy of each electrode assembly can be improved, and multiple electrode assemblies can be positioned at the same time, thereby improving the overall production efficiency on the basis of improving the positioning accuracy.

[0011] In some embodiments, the tray further comprises a driving assembly, which is used to drive two deformable positioning members located on opposite sides of the supporting position to move closer or farther away from each other along a first direction. The driving assembly provides a driving force for the movement of the deformable positioning members, thereby realizing a concave deformation adapted to the corners during the movement of the deformable positioning members.

[0012] In some embodiments, the driving assembly includes a driving unit and a transmission unit, and the driving unit is used to drive multiple deformable positioning members located on the same side of the supporting position to move synchronously through the transmission unit, thereby improving both the efficiency of movement and the consistency of movement.

[0013] In some embodiments, the transmission unit includes a first slider, a second slider and a connecting rod. The first slider is configured to be able to move along the second direction under the drive of the driving unit, the second slider is configured to be able to move along the first direction, and the second slider is respectively connected to a plurality of deformable positioning members located on the same side of the supporting position. One end of the connecting rod is rotatably connected to the first slider, and the other end of the connecting rod is rotatably connected to the second slider. This realizes the conversion of the driving force of the driving unit along the second direction into the movement of the deformable positioning member along the first direction.

[0014] In some embodiments, the tray further comprises a pad located at the supporting position, the pad being used to carry the electrode assembly. Under the load of the pad, damage to the electrode assembly caused by friction can be reduced.

[0015] In some embodiments, the tray further includes an electrode assembly contour body, which is arranged at the supporting position, and the deformable positioning member is configured to complete pre-deformation by clamping the electrode assembly contour body. That is, the entire tray is debugged with the help of the electrode assembly contour body, which reduces the damage to the electrode assembly caused by the debugging process compared to debugging with the help of the electrode assembly.

[0016] An embodiment of the second aspect of the present application provides a battery production system, which includes the tray in the above embodiment.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0019] Figure 1 This is one of the structural schematic diagrams of the tray of some embodiments of the present application;

[0020] Figure 2 This is the second structural schematic diagram of a tray according to some embodiments of the present application;

[0021] Figure 3 This is the third structural schematic diagram of a tray according to some embodiments of the present application;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A;

[0023] Figure 5 This is one of the structural schematic diagrams of the positioning assembly of some embodiments of the present application;

[0024] Figure 6 This is the second structural schematic diagram of the positioning assembly of some embodiments of the present application;

[0025] Figure 7 This is the third structural diagram of the positioning assembly of some embodiments of the present application;

[0026] Figure 8 This is a fourth structural diagram of a positioning assembly according to some embodiments of the present application;

[0027] Fig. 9 This is the fourth structural schematic diagram of the tray of some embodiments of the present application.

[0028] Description of reference numerals:

[0029] 100. Pallet;

[0030] 10. Base;

[0031] 20. Positioning components;

[0032] 21, positioning member; 211, sheet; 211a, first sheet portion; 211b, second sheet portion;

[0033] 22. mounting block; 221. groove;

[0034] 23. Locking member; 231. Cam; 232. Driving member;

[0035] 30. driving assembly; 31. driving unit; 32. transmission unit; 321. first slider; 322. second slider; 323. connecting rod;

[0036] 40. Pad;

[0037] 50. electrode assembly contour; 51. positioning hole;

[0038] F1, first direction; F2, second direction; Z, third direction. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] 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 clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] 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, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of battery application fields, its market demand is also constantly expanding.

[0048] A battery cell is the smallest unit that makes up a battery device. A battery cell includes an electrode assembly for electrochemical reactions. During the production process of the electrode assembly, the electrode assembly needs to be transported to each workstation by a corresponding carrying device. In some cases, the carrying device may be a tray, which needs to fix the electrode assembly well to reduce the deviation of the electrode assembly so that the electrode assembly can be kept in the correct position to facilitate processing at the next workstation. However, the tray is only suitable for electrode assemblies of a fixed size. When producing electrode assemblies of different sizes, the tray needs to be replaced, resulting in a decrease in production efficiency. In addition, the tray is prone to loosening after multiple replacements, which causes the electrode assembly to shake during transportation, which in turn causes collision damage to the electrode assembly.

[0049] Based on the above considerations, the present application provides a tray and a battery production system, wherein the tray includes a base and at least one group of positioning components. The base has a supporting position for carrying an electrode assembly, and the electrode assembly has a first side perpendicular to a first direction, and a second side perpendicular to a second direction, wherein the first direction is perpendicular to the second direction. The positioning component is movably disposed on the base, and each group of positioning components includes two positioning members, at least one of the two positioning members is a deformable positioning member, and the deformable positioning member is used to contact and deform with the corner where the first side and the second side intersect, and the first part of the deformed deformable positioning member is used to limit the first side along the first direction, and the second part of the deformed deformable positioning member is used to limit the second side along the second direction.

[0050] By setting a deformable positioning piece, the deformable positioning piece can produce adaptive deformation according to the outer contour of the electrode assembly. The deformed deformable positioning piece can fully fit and adapt to the surface of the electrode assembly and position the electrode assembly from two directions perpendicular to each other, thereby meeting the positioning requirements of the electrode assembly of this size. Therefore, the positioning requirements of electrode assemblies of different sizes can be met without replacing the corresponding tray, which improves the compatibility of the tray, simplifies the frequent disassembly and assembly operations caused by replacing the tray, and correspondingly improves the overall production efficiency.

[0051] The pallet disclosed in the embodiment of the present application can be used for, but not limited to, the transportation of electrode assemblies, and can also be used for the transportation of other similar workpieces, such as battery cells. The battery production system can be composed of the pallet disclosed in the present application, and the pallet can be used to transport the electrode assemblies to various stations for processing.

[0052] Combination Figures 1 to 4 As shown, Figure 1 This is one of the structural schematic diagrams of the tray of some embodiments of the present application; Figure 2 This is the second structural schematic diagram of a tray according to some embodiments of the present application; Figure 3 This is the third structural schematic diagram of a tray according to some embodiments of the present application; Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A.

[0053] The embodiment of the present application provides a tray 100, including a base 10 and at least one group of positioning components 20. The base 10 has a supporting position for carrying an electrode assembly, and the electrode assembly has a first side perpendicular to a first direction F1, and a second side perpendicular to a second direction F2, and the first direction F1 is perpendicular to the second direction F2. The positioning components 20 are movably arranged on the base 10, and each group of positioning components 20 includes two positioning members 21, at least one of the two positioning members 21 is a deformable positioning member, and the deformable positioning member is used to contact and deform with the corner where the first side and the second side intersect, and the first part of the deformed deformable positioning member is used to limit the first side along the first direction F1, and the second part of the deformed deformable positioning member is used to limit the second side along the second direction F2.

[0054] The electrode assembly is a component in a battery cell where an electrochemical reaction occurs, and is prepared by winding or lamination. The electrode assembly is rectangular or approximately rectangular as a whole. The first direction F1 can be the length direction of the electrode assembly, the second direction F2 can be the width direction of the electrode assembly, and the direction perpendicular to both the length direction and the width direction is the third direction Z, which can be the thickness direction. The edges of the electrode assembly along the length direction are defined as long, the edges along the width direction are defined as wide, and the edges along the thickness direction are defined as thick. The first side is the surface defined by the width and thickness of the electrode assembly, and the second side is the surface defined by the length and thickness of the electrode assembly. The corner where the first side and the second side intersect corresponds to the location where the thickness of the electrode assembly is located, and the electrode assembly has four corners. For electrode assemblies of different sizes, the length and width of the electrode assembly are different, and accordingly, the distance between two adjacent corners is different.

[0055] The base 10 is a component used to support the electrode assembly, and the supporting position is in contact with a surface defined by the length and width of the electrode assembly (eg, a large surface of the electrode assembly).

[0056] The positioning assembly 20 is a component for positioning the electrode assembly, and the positioning member 21 in the positioning assembly 20 is a component in contact with the surface of the electrode assembly. The position of the positioning member 21 is adjusted by moving the positioning assembly 20 on the base 10 to adjust the matching relationship between the positioning member 21 and the electrode assembly, thereby achieving the positioning of the electrode assembly, thereby meeting the positioning requirements of electrode assemblies of different sizes.

[0057] The positioning assembly 20 includes two positioning members 21 . Both positioning members 21 may be deformable positioning members, or one of the two positioning members 21 may be a deformable positioning member and the other may be a rigid positioning member.

[0058] Among them, the deformable positioning member is a component that can produce adaptive deformation under the action of external force and maintain the deformed state. After the deformable positioning member moves to contact the corner of the electrode assembly, as the deformable positioning member continues to move toward the electrode assembly, the corner further squeezes the deformable positioning member, and the corner can be embedded in the deformable positioning member, so that the deformable positioning member produces an adaptive concave deformation, and the concave deformation is adapted to the size of the corner. For example, the larger the length and width of the electrode assembly, the greater the degree of concave deformation, and the smaller the length and width of the electrode assembly, the smaller the degree of concave deformation.

[0059] The first part of the concave deformation site opposite to the first side can limit the electrode assembly along the first direction, and the second part of the concave deformation site opposite to the second side can limit the electrode assembly along the second direction. Therefore, the deformed deformable positioning part can position the electrode assembly from two perpendicular directions, and the positioning reliability is good. The concave deformation is an adaptive deformation produced by fitting to the corner, that is, it produces adaptive deformation according to electrode assemblies of different sizes, so that the deformed deformable positioning part can be well adapted to the electrode assembly, thereby meeting the positioning requirements of electrode assemblies of different sizes.

[0060] In some embodiments, the deformable positioning member may be a plastic body. After the plastic body contacts the corner, as the plastic body continues to move, the plastic body is squeezed by the corner and undergoes a concave deformation that matches the size of the corner.

[0061] In other embodiments, the deformable positioning member may include a plurality of stacked sheets. After the plurality of sheets come into contact with the corner, as the plurality of sheets continue to move, one portion of the plurality of sheets moves relative to another portion under the pressure of the corner, and these two portions of the sheets together define a concave deformation that matches the size of the corner.

[0062] By setting a deformable positioning piece, the deformable positioning piece can produce adaptive deformation according to the outer contour of the electrode assembly. The deformed deformable positioning piece can fully fit and adapt to the surface of the electrode assembly and position the electrode assembly from two directions perpendicular to each other, thereby meeting the positioning requirements of the electrode assembly of this size. Therefore, the positioning requirements of electrode assemblies of different sizes can be met without replacing the corresponding tray, thereby improving the compatibility of the tray 100, simplifying the frequent disassembly and assembly operations caused by replacing the tray, and correspondingly improving the overall production efficiency.

[0063] Combination Figures 2 to 8 As shown, Figure 5 This is one of the structural schematic diagrams of the positioning assembly of some embodiments of the present application; Figure 6 This is the second structural schematic diagram of the positioning assembly of some embodiments of the present application; Figure 7 This is the third structural diagram of the positioning assembly of some embodiments of the present application; Figure 8 This is the fourth structural schematic diagram of the positioning component of some embodiments of the present application.

[0064] According to some embodiments of the present application, each set of positioning components 20 includes a mounting block 22 and a locking member 23. The mounting block 22 is movably disposed on the base 10 along the first direction F1, and the mounting block 22 is used to carry a deformable positioning member, and the deformable positioning member includes a plurality of sheets 211 stacked and arranged along the second direction F2, and the sheets 211 are configured to be movable relative to the mounting block 22 along the first direction F1. The locking member 23 is used to provide a locking force along the second direction F2 to lock the plurality of sheets 211 to the mounting block 22.

[0065] The mounting block 22 is a component for mounting the plurality of sheets 211 , and the mounting block 22 carries the plurality of sheets 211 to move synchronously along the first direction F1 .

[0066] The sheet body 211 is a thin sheet structure, and the deformable positioning element is formed by stacking a plurality of sheets 211 along the second direction F2. Along the second direction F2, a portion of the multiple sheets 211 overlaps with the electrode assembly, while another portion is offset from the electrode assembly. In the process of the multiple sheets 211 moving toward the electrode assembly along the first direction F1, the edge of a portion of the sheets 211 can contact the first side surface, while another portion of the sheets 211 is offset from the electrode assembly. When the mounting block 22 continues to move toward the electrode assembly, the first side surface can push the portion of the sheets 211 opposite thereto to move relative to the mounting block 22, while another portion of the sheets 211 continues to move synchronously with the mounting block 22, and its surface is arranged relative to the second side surface, thereby achieving the offset movement of a portion of the sheets 211 relative to another portion of the sheets 211 along the first direction F1, and then the two portions of the sheets 211 define a recessed portion that matches the corner, wherein the edge of a portion of the sheets 211 positions the first side surface along the first direction F1, and the surface of the other portion of the sheets 211 positions the second side surface along the second direction F2.

[0067] For electrode assemblies of different sizes, when the position of the mounting block 22 remains unchanged, the larger the size of the electrode assembly along the first direction F1, the larger the distance of the dislocation movement of the sheet 211 pushed by the electrode assembly, and the larger the size of the electrode assembly along the second direction F2, the more the number of sheets 211 pushed by the electrode assembly, that is, the number of sheets 211 pushed is related to the size of the electrode assembly along the second direction F2. Further, the thinner the thickness of the sheet 211, the denser the stacking of the sheets 211, and the thicker the thickness of the sheet 211, the sparser the stacking of the sheets 211. When the electrode assembly pushes the sheets, from the perspective of the number of pushes, the densely stacked sheets 211 can more accurately reflect the size of the electrode assembly along the second direction F2 compared to the sparsely stacked sheets 211, so that the sheets 211 that are not pushed have a higher fit with the second side surface, that is, when the structural strength of the sheet 211 is met, the thinner the sheet 211 is, the better the positioning accuracy along the second direction F2. In some examples, the sheet 211 is a flexible sheet, and its material may be a photosensitive resin to reduce the damage of the sheet 211 to the surface of the electrode assembly.

[0068] In some embodiments, Figure 2 and Figure 3 The state of the sheet 211 before and after the movement relative to the mounting block 22 is shown. Figure 2 As shown, before the sheet 211 contacts the corner, the edges of each sheet 211 are aligned. Figure 3 As shown, when the sheet 211 contacts the corner and continues to move, a portion of the sheet 211 opposite to the first side surface moves displacedly relative to another portion of the sheet 211 .

[0069] The locking member 23 is a component used to clamp or release the multiple sheets 211 along the second direction F2. The multiple sheets 211 are released by the locking member 23, and the multiple sheets 211 can be displaced and moved, so that a recessed portion adapted to the corner is formed under the push of the electrode assembly. After that, the multiple sheets 211 are clamped by the locking member 23, and the sheets 211 cannot move relative to the mounting block 22, so that the relative positions of the multiple sheets 211 and the mounting block 22 can remain unchanged, so that the recessed portion can remain unchanged, and the next electrode assembly of the same size can be accurately positioned. That is, by releasing the locking member 23, the multiple sheets 211 are adapted to the electrode assembly. After the adaptation is completed, the locking member 23 is locked to be compatible with the next electrode assembly of the same size, thereby completing the compatibility debugging of the tray 100.

[0070] By stacking a plurality of sheets 211, a recessed portion adapted to the corner is formed by the offset movement of one part of the plurality of sheets 211 relative to another part, the edge of the sheet 211 opposite to the first side surface positions the electrode assembly along the first direction F1, and the surface of the sheet 211 opposite to the second side surface positions the electrode assembly along the second direction F2. At the same time, by locking the locking member 23, the plurality of sheets 211 can be kept in the state after the offset movement to meet the positioning requirements of the next electrode assembly of the same size, thereby completing the compatibility debugging of the tray 100.

[0071] Combination Figures 5 to 8 As shown, according to some embodiments of the present application, the locking member 23 includes a cam 231, the mounting block 22 is provided with a groove 221, one end of the sheet 211 away from the electrode assembly extends into the groove 221, and the cam 231 is rotatably disposed on the mounting block 22, and the cam 231 is constructed to provide a locking force to multiple sheets 211 through rotation adjustment.

[0072] The cam 231 is a component having a curved surface profile and being rotatable around the center of rotation, and different positions on the curved surface profile have different distances from the center of rotation. When the portion on the curved surface profile that is smaller than the center of rotation rotates to be opposite to the surface of the sheet 211, there is a certain distance between the cam 231 and the sheet 211, the sheet 211 is released, and the sheet 211 can move relative to the mounting block 22. When the portion on the curved surface profile that is larger than the center of rotation rotates to contact the sheet 211, the cam 231 abuts the sheet against the inner wall of the groove 221, the sheet 211 is locked, and the sheet 211 cannot move relative to the mounting block 22, so that the relative position of the sheet 211 and the mounting block 22 after the misaligned movement can remain unchanged, thereby meeting the positioning requirements of the next electrode assembly of the same size.

[0073] There is a certain gap between one end of the sheet 211 away from the electrode assembly and the bottom of the groove 221 , which provides a moving space for the sheet 211 to move in a dislocated manner along the first direction F1 .

[0074] The cam 231 rotates to release and lock the plurality of sheets 211 , thereby completing the compatibility debugging of the tray 100 .

[0075] Combination Figure 6 and Figure 8 As shown, according to some embodiments of the present application, the sheet 211 includes a first sheet portion 211a and a second sheet portion 211b connected to each other, the first sheet portion 211a is at least partially inserted into the groove 221, the second sheet portion 211b is located outside the groove 221 and is used to contact the electrode assembly, the size of the second sheet portion 211b along the third direction Z is greater than or equal to the size of the electrode assembly along the third direction Z, and the third direction Z is perpendicular to the plane defined by the first direction F1 and the second direction F2.

[0076] At least part of the first sheet portion 211 a is a portion of the sheet 211 located inside the groove 221 for locking by the cam 231 , and the second sheet portion 211 b is a portion of the sheet 211 located outside the groove 221 and in contact with the electrode assembly.

[0077] In some embodiments, the sheet 211 is an integrally formed structure, one end of the first sheet portion 211a is connected to the middle of the second sheet portion 211b, and the projection of the sheet 211 perpendicular to the second direction F2 is in a "T" shape. By appropriately increasing the size of the second sheet portion 211b along the third direction Z, the contact area between the sheet 211 and the electrode assembly is increased to improve the reliability of positioning.

[0078] By configuring the sheet body 211 to be a two-part structure, the sheet body 211 can be locked and the reliability of positioning can be improved.

[0079] Combination Figures 5 to 8 As shown, according to some embodiments of the present application, the locking member 23 further includes a driving member 232 connected to the cam 231 , and the driving member 232 is used to drive the cam 231 to rotate.

[0080] In some embodiments, the driving member 232 may be a lever, which drives the cam 231 to rotate forward to release the sheet 211 , and drives the cam 231 to rotate backward to lock the sheet 211 .

[0081] By providing the driving member 232 , the rotation of the cam 231 can be conveniently realized, thereby realizing the release and locking of the sheet body 211 .

[0082] Combination Figures 1 to 3As shown, according to some embodiments of the present application, the number of positioning components 20 is multiple groups, and the multiple groups of positioning components 20 are arranged at intervals along the second direction F2. Each group of positioning components 20 includes two deformable positioning members arranged on both sides of the supporting position along the first direction F1.

[0083] There are multiple groups of positioning components 20. It can be understood that there are two or more groups of positioning components 20. The spacing between two adjacent groups of positioning components 20 along the second direction F2 must satisfy that along the first direction F1, at least a certain number of the multiple sheets 211 can overlap with the electrode assembly, so that the first side surface of the electrode assembly can push the sheet 211 to move in an offset manner.

[0084] The two deformable positioning members in each group of positioning components 20 correspond to two adjacent corners of the electrode assembly along the first direction F1. The electrode assembly has four corners. If the number of positioning components 20 is set to two groups, then the two groups of positioning components 20 have a total of four deformable positioning members, so that the four corners of an electrode assembly can be positioned at the same time, further reducing the offset of the electrode assembly. When the number of positioning components 20 is set to three or more groups, the tray 100 can simultaneously position multiple electrode assemblies, that is, the tray 100 can simultaneously transport multiple electrode assemblies, thereby improving the overall production efficiency.

[0085] By setting up multiple groups of positioning components, it is possible to improve the positioning accuracy of each electrode component and to position multiple electrode components at the same time, thereby improving the overall production efficiency on the basis of improving the positioning accuracy.

[0086] like Fig. 9 As shown, Fig. 9 This is a fourth structural diagram of a tray according to some embodiments of the present application. According to some embodiments of the present application, the tray 100 further includes a driving assembly 30, which is used to drive two deformable positioning members located on opposite sides of the supporting position to move closer to or farther from each other along a first direction F1.

[0087] The driving assembly 30 is a component that provides driving force for the movement of the deformable positioning members. Before debugging, the driving assembly 30 drives the two deformable positioning members to move away from each other to increase the distance between the two deformable positioning members so that there is enough space between the two deformable positioning members for placing the electrode assembly. Then, the driving assembly 30 drives the two deformable positioning members to move closer together. Under the push of the first side surface of the electrode assembly, a part of the sheet bodies of the two deformable positioning members are dislocated to form a concave portion adapted to the corner.

[0088] In some embodiments, the drive assembly 30 may be configured as a leadscrew assembly.

[0089] The driving component 30 provides driving force for the movement of the deformable positioning member, and during the movement of the deformable positioning member, a concave deformation adapted to the corner is formed to meet the positioning requirements of the next electrode component of the same size.

[0090] like Fig. 9 As shown, according to some embodiments of the present application, the driving assembly 30 includes a driving unit 31 and a transmission unit 32 , and the driving unit 31 is used to drive a plurality of deformable positioning members located on the same side of the supporting position to move synchronously through the transmission unit 32 .

[0091] The driving unit 31 is a component that outputs driving force, and the transmission unit 32 is a component that transmits the driving force to the deformable positioning member to move it.

[0092] If there are multiple groups of positioning components 20, then along the first direction F1, there are also multiple deformable positioning members on the same side of the supporting position. The multiple deformable positioning members on the same side of the supporting position are moved synchronously, which improves the movement efficiency and the consistency of the movement.

[0093] The transmission unit 32 drives the deformable positioning members on the same side to move synchronously, which improves both the efficiency of movement and the consistency of movement.

[0094] like Fig. 9 As shown, according to some embodiments of the present application, the transmission unit 32 includes a first slider 321, a second slider 322 and a connecting rod 323. The first slider 321 is configured to be able to move along the second direction F2 under the drive of the driving unit 31, the second slider 322 is configured to be able to move along the first direction F1, and the second slider 322 is respectively connected to a plurality of deformable positioning members located on the same side of the supporting position. One end of the connecting rod 323 is rotatably connected to the first slider 321, and the other end of the connecting rod 323 is rotatably connected to the second slider 322.

[0095] In some embodiments, the driving unit 31 may include a lead screw and a nut sleeved on the lead screw, the nut is connected to the first slider 321, the lead screw is extended along the second direction F2, and the lead screw is rotated to drive the nut and the first slider 321 to move along the second direction F2. There are two second sliders 322, one of which is connected to the mounting block 22 corresponding to the multiple deformable positioning members on one side of the supporting position, and the other second slider 322 is connected to the mounting block 22 corresponding to the multiple deformable positioning members on the other side of the supporting position. Correspondingly, there are also two connecting rods 323. The first slider 321, the second slider 322 and the connecting rod 323 together form a crank slider mechanism.

[0096] When the first slider 321 moves toward the side close to the second slider 322, the angle between the two connecting rods 323 gradually increases, the distance between the two second sliders 322 also gradually increases, and the deformable positioning members on both sides of the supporting position move away from each other. When the first slider 321 moves toward the side away from the second slider 322, the angle between the two connecting rods 323 gradually decreases, the distance between the two second sliders 322 also gradually decreases, and the deformable positioning members on both sides of the supporting position move closer to each other, so that the deformable positioning members are deformed under the pressure of the electrode assembly, and then the deformable positioning members are locked by the locking member 23, and the lead screw is locked by the locking nut, so that the first slider 321 and the second slider 322 are maintained at the current position, thereby completing the debugging of the tray 100. During the debugging process, the transmission unit 32 can convert the driving force of the driving unit 31 along the second direction F2 into the movement of the deformable positioning member along the first direction F1.

[0097] By providing a transmission unit in the form of a crank slider mechanism, the driving force of the driving unit 31 along the second direction F2 is converted into the movement of the deformable positioning member along the first direction F1.

[0098] like Figure 1 As shown, according to some embodiments of the present application, the tray 100 further includes a pad 40 located at the supporting position, and the pad 40 is used to support the electrode assembly.

[0099] The spacer 40 is a component located at the lower side of the electrode assembly along the third direction Z and supports the electrode assembly.

[0100] In some embodiments, the preparation method of the pad 40 can be to coat the outer surface of the aluminum block with high-temperature resistant plastic. The high-temperature resistant plastic can effectively improve and reduce the problems of aging and deformation, thereby reducing the damage such as decarbonization of the electrode assembly caused by repeated friction between the pad 40 and the electrode assembly.

[0101] By arranging the pad 40 at the supporting position, the damage of the electrode assembly due to friction can be reduced under the support of the pad 40 .

[0102] Combination Figures 1 to 3 As shown, according to some embodiments of the present application, the tray 100 further includes an electrode assembly contour body 50 , which is used to be arranged in a supporting position, and the deformable positioning member is constructed to be able to complete pre-deformation by clamping the electrode assembly contour body 50 .

[0103] The electrode assembly profiling body 50 is a model prepared according to the size of the electrode assembly, so that multiple key dimensions of the electrode assembly for positioning can be reflected in the outer contour dimensions of the electrode assembly profiling body 50. Multiple electrode assembly profiling bodies 50 of different sizes can be prefabricated according to electrode assemblies of different sizes. When the entire tray 100 needs to be debugged, the electrode assembly profiling body 50 of the corresponding size is placed in the supporting position, and then the deformable positioning member is moved along the first direction F1 so that the deformable positioning member produces a deformation adapted to the corner under the extrusion of the electrode assembly profiling body 50, and then the deformable positioning member is locked and the electrode assembly profiling body 50 is removed, thereby completing the debugging. After the debugging is completed, the tray 100 can meet the positioning requirements of electrode assemblies of the same size.

[0104] In some embodiments, a positioning hole 51 is provided on the electrode assembly contour body 50, and the positioning hole 51 is connected to the base 10 through a pin so that the electrode assembly contour body 50 can be located at an accurate position. After debugging is completed, the electrode assembly can be accurately positioned at the same position as the electrode assembly contour body 50.

[0105] By completing the debugging of the entire tray 100 with the help of the electrode assembly contour body 50, compared with debugging with the help of the electrode assembly, the damage to the electrode assembly caused by the debugging process is reduced.

[0106] An embodiment of the second aspect of the present application provides a battery production system, comprising a tray 100 as in any of the above embodiments.

[0107] The battery production system may also include a conveyor belt for conveying the pallet 100 , which is connected to the pallet 100 and arranged between the upstream production equipment and the downstream production equipment. The conveyor belt drives the pallet 100 to transport the electrode assembly from the upstream production equipment to the downstream production equipment.

[0108] The battery production system in this embodiment can have all the beneficial effects of the above-mentioned tray, which will not be described in detail here.

[0109] Combine the following Figures 1 to 9 The embodiments of the present application are described in further detail.

[0110] The tray 100 includes a base 10 , a positioning assembly 20 , a driving assembly 30 , a cushion block 40 and an electrode assembly contour body 50 .

[0111] The base 10 is provided with a supporting position for carrying the electrode assembly.

[0112] There are multiple groups of positioning components 20, and the multiple groups of positioning components 20 are arranged at intervals along the second direction F2. Each group of positioning components 20 includes a deformable positioning member, a mounting block 22 and a locking member 23. There are two deformable positioning members, and the two deformable positioning members are located on both sides of the supporting position along the first direction F1. The deformable positioning member includes a plurality of sheets 211 stacked along the second direction F2, and one end of the sheet 211 is located in the groove 221 of the mounting block 22, and can move relative to the mounting block 22 along the first direction F1. The locking member 23 includes a cam 231 and a lever connected to the cam 231, and the lever drives the cam 231 to rotate, so that the cam 231 can abut and lock the plurality of sheets 211, or release the plurality of sheets 211.

[0113] The driving assembly 30 includes a driving unit 31 and a transmission unit 32. The driving unit 31 includes a lead screw and a nut on the lead screw. The transmission unit 32 includes a first slider 321, a second slider 322 and a connecting rod 323. The first slider 321 is connected to the nut. The first slider 321 can move along the second direction F2. There are two second sliders 322, one of which is connected to the mounting block 22 corresponding to the multiple deformable positioning members on one side of the supporting position, and the other second slider 322 is connected to the mounting block 22 corresponding to the multiple deformable positioning members on the other side of the supporting position. The two second sliders 322 can approach or move away from each other along the first direction F1. One end of the connecting rod 323 is rotatably connected to the first slider 321, and the other end of the connecting rod is rotatably connected to the second slider 322.

[0114] The pad 40 is disposed at the supporting position to support the electrode assembly.

[0115] The electrode assembly contour body 50 is used to be arranged in a supporting position. The electrode assembly contour body 50 is clamped by moving the deformable positioning member so that the deformable positioning member can complete pre-deformation. Multiple electrode assembly contour bodies 50 are prefabricated according to electrode assemblies of different sizes.

[0116] The debugging process of the tray 100 is to drive the two second sliders 322 away from each other through the rotation of the lead screw, so that the distance between the deformable positioning members on both sides of the supporting position is the largest, release the locking member 23, and adjust the multiple sheets 211 in the deformable positioning member to a state of edge alignment. The electrode assembly contour body 50 is fixed to the supporting position by a latch, and the two second sliders 322 are driven to approach each other through the rotation of the lead screw, so that the deformable positioning member contacts the electrode assembly contour body 50. A part of the multiple sheets 211 of the deformable positioning member moves displaced relative to another part of the sheets 211 along the first direction F1 under the push of the electrode assembly contour body 50, and the two parts of the sheets 211 jointly define a concave part adapted to the corner. Thereafter, the plurality of sheets 211 are locked on the mounting block 22 by means of the locking piece 23, and the lead screw is locked so that the mounting block 22 and the plurality of sheets 211 can be fixed in the current position. Finally, the electrode assembly contour body 50 is removed, thereby completing the compatibility debugging of the tray 100. After debugging, the tray 100 can be compatible with electrode assemblies of the same size as the electrode assembly contour body 50, thereby meeting the requirements of accurate positioning.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A pallet, characterized in that: include: A base having a supporting position for carrying an electrode assembly, wherein the electrode assembly has a first side surface perpendicular to a first direction and a second side surface perpendicular to a second direction, wherein the first direction is perpendicular to the second direction; At least one group of positioning components is movably arranged on the base, and each group of positioning components includes two positioning members, at least one of the two positioning members is a deformable positioning member, and the deformable positioning member is used to contact and deform with the corner where the first side surface and the second side surface intersect, and the first part of the deformed deformable positioning member is used to limit the first side surface along the first direction, and the second part of the deformed deformable positioning member is used to limit the second side surface along the second direction.

2. The pallet according to claim 1, characterized in that: Each set of positioning components includes: a mounting block movably disposed on the base along the first direction; the mounting block is used to carry the deformable positioning member, the deformable positioning member includes a plurality of sheets stacked along the second direction, and the sheets are configured to be movable relative to the mounting block along the first direction; The locking member is used to provide a locking force along the second direction to lock the plurality of sheets to the mounting block.

3. The pallet according to claim 2, characterized in that: The locking member comprises a cam; The mounting block is provided with a groove, and one end of the sheet away from the electrode assembly extends into the groove. The cam is rotatably arranged on the mounting block, and the cam is constructed to provide locking force to the plurality of sheets through rotation adjustment.

4. The pallet according to claim 3, characterized in that: The sheet body comprises a first sheet body portion and a second sheet body portion connected to each other; The first sheet portion is at least partially inserted into the groove, the second sheet portion is located outside the groove and is used to contact the electrode assembly, the size of the second sheet portion along the third direction is greater than or equal to the size of the electrode assembly along the third direction, and the third direction is perpendicular to the plane defined by the first direction and the second direction.

5. The pallet according to claim 3, characterized in that: The locking member further comprises a driving member connected to the cam; The driving member is used for driving the cam to rotate.

6. The pallet according to any one of claims 1 to 5, characterized in that: There are multiple groups of positioning components, which are arranged at intervals along the second direction. Each group of positioning components includes two deformable positioning members arranged on both sides of the supporting position along the first direction.

7. The pallet according to claim 6, characterized in that: The tray also includes a drive assembly; The driving assembly is used to drive two deformable positioning members located on opposite sides of the supporting position to move closer to or farther away from each other along the first direction.

8. The pallet according to claim 7, characterized in that: The driving assembly includes a driving unit and a transmission unit; The driving unit is used to drive a plurality of deformable positioning members located on the same side of the supporting position to move synchronously through the transmission unit.

9. The pallet according to claim 8, characterized in that The transmission unit comprises: a first slider, configured to be movable along the second direction under the driving of the driving unit; A second slider is configured to be movable along the first direction, and the second slider is respectively connected to a plurality of deformable positioning members located on the same side of the supporting position; A connecting rod, one end of which is rotatably connected to the first slider, and the other end of which is rotatably connected to the second slider.

10. The pallet according to any one of claims 1 to 5, characterized in that: The tray further comprises a cushion block located at the supporting position, and the cushion block is used for carrying the electrode assembly.

11. The pallet according to any one of claims 1 to 5, characterized in that: The tray also includes an electrode assembly contour; The electrode assembly contoured body is used to be arranged in the supporting position, and the deformable positioning member is constructed to be able to complete pre-deformation by clamping the electrode assembly contoured body.

12. A battery production system, characterized in that: Comprising the pallet according to any one of claims 1-11.

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