Conveying tray, conveying device and battery production system

Abstract

The embodiment of the utility model provides a conveying tray, a conveying device and a battery production system, and relates to the technical field of batteries. The conveying tray comprises a bearing part and two rotating parts, and the two rotating parts can rotate between a first state and a second state. According to the conveying tray, the two rotating parts can be switched to the first state or the second state to form two containing structures of different specifications and sizes, two battery monomers of different specifications and sizes can be fixed and transferred, the universality of the conveying tray is improved, the configuration amount of the conveying trays of different sizes is reduced, and the conveying efficiency is improved. And the time for replacing the conveying tray is shortened, so that the transfer cost of the battery monomers is reduced, and the transfer efficiency of the battery monomers is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and more specifically, to a conveying pallet, a conveying device, and a battery production system. Background Art

[0002] During the production and processing of batteries, pallets are needed to fix battery cells and transport them between various workstations on the battery production line to facilitate the subsequent assembly of battery modules.

[0003] However, battery cells of different specifications have different outer contour sizes and shapes. In order to meet the transportation needs of battery cells of different specifications, it is necessary to replace pallets of different specifications and sizes to accommodate different types of battery cells, thereby increasing the production cost of battery transportation and reducing the battery transportation efficiency. Utility Model Content

[0004] The present application provides a conveying tray, a conveying device and a battery production system, which can improve the universality of the conveying tray for different types of battery cells.

[0005] In a first aspect, an embodiment of the present application provides a conveying tray, comprising: a bearing member having a bearing surface; two rotating members connected to the bearing surface in a manner rotatable around their own axes, the two rotating members being arranged opposite to each other along a first direction, the first direction being parallel to the bearing surface and intersecting with the axial direction of the rotating member; the rotating member having a first limiting portion and a second limiting portion arranged along its own circumference, the first limiting portion being provided with a plurality of first limiting grooves arranged along the axial direction of the rotating member, the second limiting portion being provided with a plurality of second limiting grooves arranged along the axial direction of the rotating member, the size of the second limiting grooves being larger than the size of the first limiting grooves along the axial direction of the rotating member; the two rotating members being able to rotate between a first state and a second state, in the first state, the plurality of first limiting grooves on one rotating member are matched one-to-one with the plurality of first limiting grooves on the other rotating member to form a containing structure for containing battery monomers, and in the second state, the plurality of second limiting grooves on one rotating member are matched one-to-one with the plurality of second limiting grooves on the other rotating member to form a containing structure for containing battery monomers. By setting a rotating member and setting a first limit groove and a second limit groove of different sizes on the rotating member, the rotating member in the embodiment of the present application can be rotated according to the outline size and shape of the battery cell, so that the two rotating members are switched to the first state or the second state to form two accommodating structures of different specifications and sizes, and battery cells of two different specifications and sizes can be fixed and transported, thereby improving the universality of the conveying pallet for battery cells of different specifications, reducing the required configuration of conveying pallets of different sizes, reducing the time for replacing conveying pallets, thereby reducing the cost of battery cell transportation and improving the efficiency of battery cell transportation.

[0006] In some embodiments, the first limiting portion includes a first limiting surface and a plurality of first limiting blocks, the plurality of first limiting blocks are arranged at intervals on the first limiting surface along the axial direction of the rotating member, and two adjacent first limiting blocks and the first limiting surface form the first limiting groove. The first limiting groove is formed by two first limiting blocks and the first limiting surface, and the two first limiting blocks form an opening in a direction perpendicular to the bearing surface, which is convenient for the entry of the battery monomer. At the same time, the two first limiting blocks can be used to limit the battery monomer in the axial direction of the rotating member, and the two opposite first limiting surfaces can be used to limit the battery monomer in the first direction, so that the battery monomer can be well transported and fixed.

[0007] In some embodiments, the first limit block is detachably connected to the first limit surface. Designing the first limit block to be detachably connected to the first limit surface not only facilitates the installation of the first limit block and the first limit surface, but also allows the first limit grooves of different specifications to be formed by replacing first limit blocks of different sizes, thereby adjusting the size of the accommodating structure surrounded by the two first limit grooves to match more battery cells of different specifications, thereby further improving the universality of the conveying tray for battery cells of different specifications.

[0008] In some embodiments, the first limit block and the first limit surface are connected by a first connecting member, the first limit block is provided with a first connecting hole, the first limit surface is provided with a second connecting hole, and the first connecting member is connected to the first connecting hole and the second connecting hole. The connecting member, the first connecting hole and the second connecting hole form a detachable connection, which has a simple structure and is easy to disassemble and assemble.

[0009] In some embodiments, the conveying tray further comprises a mounting seat, the mounting seat is connected to the bearing surface, and the rotating member is connected to the mounting seat in a manner that it can rotate around its own axis. The mounting seat is used to mount the rotating member, which facilitates the rotating member to rotate around its own axis and can also provide support for the rotating member.

[0010] In some embodiments, there are two mounting seats, one of the two opposite ends of the rotating member along the axial direction is connected to one mounting seat, and the other end is connected to the other mounting seat. The two mounting seats are used to rotatably support the two ends of the rotating member, thereby improving the stability and reliability of the rotating member.

[0011] In some embodiments, the conveying tray further comprises a first brake assembly, at least one of the rotating members is connected to the first brake assembly, and the first brake assembly is used to limit the rotation of the rotating member. The rotating member can be fixed in the first state or the second state by the first brake assembly, thereby reducing the possibility that the rotating member affects the fixing effect of the battery cell due to unnecessary rotation.

[0012] In some embodiments, the first brake assembly includes a first follower and a first brake, wherein the first follower is connected to one end of the rotating member and rotates synchronously, the first brake is inserted into the first follower and can move in a direction close to or away from the mounting seat, and the mounting seat is provided with a plurality of first plug holes at intervals along its circumference, and the first plug holes are used to be plugged and matched with the first brake. The first follower drives the first brake to rotate, and when the rotating member rotates to the first state or the second state and braking is required, braking is achieved by the cooperation between the first brake and the first plug hole, and when the braking needs to be released, the first brake can be directly pulled out, and the braking and releasing operations are simple.

[0013] In some embodiments, the rotating member further includes a third limiting portion, the first limiting portion, the second limiting portion and the third limiting portion are arranged along the circumference of the rotating member, the third limiting portion is provided with a plurality of third limiting grooves arranged along the axial direction of the rotating member, and the size of the third limiting grooves along the axial direction of the rotating member is larger than the size of the second limiting grooves; the two rotating members can rotate to a third state, and in the first state, the plurality of third limiting grooves on one rotating member correspond to the plurality of third limiting grooves on the other rotating member one by one to form a receiving structure for receiving battery cells. By using the two third limiting grooves on the two third limiting portions to form a receiving structure of another specification, the conveying tray can fix and transport battery cells of three different specifications and sizes, further improving the universality of the conveying tray for battery cells of different specifications.

[0014] In some embodiments, at least one of the two rotating members is connected to the carrier by a sliding assembly, and the sliding assembly is configured to enable the rotating member to slide on the carrier along the first direction. By designing one or both of the two rotating members to be slidably connected to the carrier, the distance between the two rotating members can be adjusted along the first direction to accommodate battery cells of different sizes, further improving the universality of the conveying pallet for battery cells of different specifications, further reducing the cost of battery cell transportation, and improving the efficiency of battery cell transportation.

[0015] In some embodiments, the sliding assembly includes a first sliding track and a first sliding member, the first sliding track is connected to the bearing surface and extends along the first direction, the first sliding member is slidably connected to the first sliding track, and the rotating member is connected to the first sliding member. The sliding of the rotating member is achieved by the sliding connection between the first sliding member and the first sliding track, the structure is simple, and the sliding of the rotating member is easy to operate.

[0016] In some embodiments, the conveying tray further includes a second brake assembly, which is used to limit the sliding of the first sliding member on the first sliding track. The second brake assembly can fix the rotating member after sliding adjustment, thereby reducing the possibility that the rotating member will affect the fixing effect of the battery cell due to unnecessary sliding.

[0017] In some embodiments, the second brake assembly includes a second follower, a second brake, and a fixed member; the second follower is connected to the first sliding member and slides synchronously with the first sliding member, the second brake is inserted into the second follower, the fixed member is connected to the bearing surface, and the fixed member is provided with a plurality of second plug holes spaced along the first direction, and the second plug holes are used for plugging and matching with the second brake. The second follower drives the second brake to slide, and when the rotating member slides to an ideal position and braking is required, braking is achieved by the cooperation between the second brake and the second plug hole, and when the brake needs to be released, the second brake can be directly pulled out, and the operation of braking and releasing the brake is simple.

[0018] In some embodiments, the conveying tray further includes a detection component, which is connected to the bearing surface and located between the two rotating members, and is used to detect whether the battery cell is located in the containing structure. The detection component can be used to detect whether the battery cell is located in the containing structure, thereby reducing the possibility of the battery cell being misaligned on the conveying tray and facilitating the subsequent processing of the battery cell.

[0019] In some embodiments, the detection assembly includes a second sliding track, a second sliding member, and a proximity sensor, wherein the second sliding track extends along a second direction parallel to the axial direction of the rotating member, and a plurality of second sliding members are arranged on the second sliding track at intervals along the second direction, and each second sliding member is mounted with at least one proximity sensor. The two second sliding members and the second sliding track can form a storage space for accommodating a battery cell, and the two ends of the storage space in the first direction are respectively two rotating members, so that a groove structure for accommodating a battery cell is formed by the second sliding member, the second sliding track, and the two rotating members, so that the battery cell can be better fixed. At the same time, the proximity sensor can be used to determine the distance between the battery cell and the two adjacent second sliding members, and then it can be known whether the battery cell is located in the above-mentioned groove structure.

[0020] In some embodiments, the detection assembly further includes a diffuse reflection sensor, and each of the second sliding members is equipped with at least one diffuse reflection sensor. By adding a diffuse reflection sensor, the detection accuracy of the detection assembly can be improved.

[0021] In a second aspect, an embodiment of the present application provides a conveying device, comprising: a conveying tray as described in any one of the above technical solutions; and a conveying assembly, wherein the conveying assembly is used to drive the conveying tray to move along a preset direction.

[0022] In a third aspect, an embodiment of the present application provides a battery production system, comprising a conveying device as described in the above technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a conveyor tray provided in some embodiments of the present application;

[0025] Figure 2 for Figure 1 A magnified view of part a;

[0026] Figure 3 for Figure 1 A magnified view of part b;

[0027] Figure 4 A schematic diagram of the connection between the first limiting block and the first limiting surface of the conveying tray provided in some embodiments of the present application;

[0028] Figure 5 A schematic diagram of the structure of a rotating member, a mounting seat and a first brake assembly of a conveying tray provided in some embodiments of the present application;

[0029] Figure 6 for Figure 5 Schematic diagram of the structure from another perspective;

[0030] Figure 7 A schematic diagram of the structure of a sliding assembly and a second brake assembly of a conveying tray provided in some embodiments of the present application;

[0031] Figure 8 A schematic diagram of the structure of a detection assembly for a conveyor tray provided in some embodiments of the present application.

[0032] The reference numerals of the specific embodiments are as follows:

[0033] 100. Pallet;

[0034] 10. bearing member; 11. bearing surface;

[0035] 20, rotating member; 21, first limiting portion; 211, first limiting groove; 212, first limiting surface; 2121, second connecting hole; 213, first limiting block; 2131, first connecting hole; 214, first connecting member; 22, second limiting portion; 221, second limiting groove; 23, third limiting portion; 231, third limiting groove;

[0036] 30. mounting seat; 31. extension portion; 32. first plug hole;

[0037] 40. First brake assembly; 41. First follower; 42. First brake member;

[0038] 50. Sliding assembly; 51. First sliding track; 52. First sliding member;

[0039] 60, second brake assembly; 61, second follower; 611, connecting ear; 62, second brake member; 63, fixing member; 631, second plug hole;

[0040] 70. Detection assembly; 71. Second sliding track; 72. Second sliding member; 721. Notch; 73. Proximity sensor; 74. Diffuse reflection sensor; 75. Support plate;

[0041] 200, battery cell;

[0042] X, first direction; Y, second direction; Z, axial direction of the rotating part. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0045] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places 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.

[0046] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can 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 application generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0049] The term "plurality" used in the present application refers to two or more (including two).

[0050] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module or a battery pack. The battery generally includes a battery box for encapsulating one or more battery cells. The battery box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.

[0051] The battery cells mentioned in the embodiments of the present application may be lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells or magnesium-ion battery cells, etc., which are not limited in the embodiments of the present application. The battery cells may be cylindrical, flat, cuboid or other shapes, which are not limited in the embodiments of the present application.

[0052] The battery cell mentioned in the embodiments of the present application may include an electrode assembly and an electrolyte, and the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive current collector and a positive active material layer, and the positive active material layer is coated on the surface of the positive current collector; the positive current collector includes a positive electrode coating area and a positive electrode ear connected to the positive electrode coating area, the positive electrode coating area is coated with a positive electrode active material layer, and the positive electrode ear is not coated with a positive electrode active material layer. Taking a lithium-ion battery cell as an example, the material of the positive current collector can be aluminum, and the positive electrode active material layer includes a positive electrode active material, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector includes a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, and the negative electrode coating area is coated with a negative electrode active material layer, and the negative electrode tab is not coated with a negative electrode active material layer. The material of the negative electrode current collector can be copper, and the negative electrode active material layer includes a negative electrode active material, and the negative electrode active material can be carbon or silicon, etc. The material of the separator can be PP (polypropylene, polypropylene) or PE (polyethylene, polyethylene), etc.

[0053] The battery cells described in the embodiments of the present application are suitable for batteries and electrical devices using batteries. Electrical devices may be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and electric tools, etc. Vehicles may be fuel vehicles, gas vehicles, or new energy vehicles, and new energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0054] Below, the embodiments of the present application are described in detail.

[0055] At present, the application of power batteries is becoming more and more extensive. Power 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 military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0056] During the battery production process, battery cells need to be stacked to form battery modules. This process generally uses conveyor pallets to transport battery cells. Multiple battery cells are placed automatically by robots or manually on conveyor pallets. The conveyor pallets and battery cells are transported to the assembly process through conveyor components to facilitate the subsequent stacking of battery modules.

[0057] The existing battery cell conveyor pallet generally includes a bottom plate, two grooved parts connected to the bottom plate, and limit plates located on both sides of the two grooved parts. The grooved parts are provided with multiple installation slots, and the size of the installation slots is fixed, so it can only adapt to battery cells of one specification and size. The conveyor pallet of this structure can only meet the conveying requirements of a production line that produces one type of battery. However, a general production line usually needs to produce three or more types of batteries. For a production line that produces multiple different specifications, only multiple conveyor pallets of different specifications can be configured. When the product to be produced is switched, the pallet needs to be replaced at the same time, which wastes a lot of manpower, material resources and time costs, while reducing the efficiency of battery transportation, and also affects the production efficiency and production cost of the entire battery production system.

[0058] Therefore, how to reduce the cost of battery transportation and improve transportation efficiency is an important issue in battery production and processing.

[0059] In view of this, the present application provides a technical solution, which replaces the groove member and the limit plate by configuring two rotating members that can rotate around their own axes. Each rotating member is configured with a first limit groove and a second limit groove of different specifications. The rotating member can be rotated according to the outline size and shape of the battery cell to form two accommodating structures of different specifications and sizes, so as to fix and transport battery cells of two different specifications and sizes, thereby improving the universality of the conveying pallet for battery cells of different specifications, reducing the required configuration amount of conveying pallets of different sizes, reducing the time for replacing the conveying pallet, thereby reducing the cost of battery cell transportation and improving the efficiency of battery cell transportation.

[0060] The following is combined with Figure 1-8 The conveying tray provided in this embodiment is described in detail.

[0061] Figure 1 A schematic diagram of the structure of a conveyor tray provided in some embodiments of the present application (the two rotating members in the figure are in the second state), Figure 2 for Figure 1 Enlarged view of part a.

[0062] Combined with Figure 1 and attached Figure 2As shown in, the embodiment of the present application provides a conveying tray 100, including a bearing member 10 and two rotating members 20, the bearing member 10 has a bearing surface 11; the two rotating members 20 are connected to the bearing surface 11 in a manner that they can rotate around their own axes, and the two rotating members 20 are arranged opposite to each other along a first direction X, the first direction X is parallel to the bearing surface 11, and intersects with the axial direction Z of the rotating member 20; the rotating member 20 has a first limiting portion 21 and a second limiting portion 22 arranged along its own circumferential direction, the first limiting portion 21 is provided with a plurality of first limiting grooves 211 arranged along the axial direction Z of the rotating member 20, and the second limiting portion 22 is provided with a plurality of first limiting grooves 211 arranged along the axial direction Z of the rotating member 20 A second limiting groove 221 is formed, and along the axial direction Z of the rotating member 20, the size of the second limiting groove 221 is larger than the size of the first limiting groove 211; the two rotating members 20 can rotate between a first state and a second state. In the first state, the multiple first limiting grooves 211 on one rotating member 20 correspond one-to-one with the multiple first limiting grooves 211 on the other rotating member 20 to form a multiple accommodation structure for accommodating battery cells 200. In the second state, the multiple second limiting grooves 221 on one rotating member 20 correspond one-to-one with the multiple first limiting grooves 211 on the other rotating member 20 to form a multiple accommodation structure for accommodating battery cells 200.

[0063] The supporting member 10 of this embodiment can be a rectangular plate-shaped structure as shown in the figure, and its length direction can be set along the axial direction Z of the rotating member 20 as shown in the figure, and its width direction can be set along the first direction X as shown in the figure. Of course, the supporting member 10 can also be in the form of a rectangular block, an elliptical plate, a rectangular grid, etc., which are not listed one by one in this embodiment.

[0064] A bearing surface 11 is provided on one side of the carrier 10 of the present embodiment. The bearing surface 11 may be a planar structure as shown in the figure, or may be a plurality of discontinuous surface structures in the same spatial plane. During the transportation of the battery cells 200 by the conveying pallet 100, the bearing surface 11 may be parallel or approximately parallel to the horizontal plane.

[0065] The rotating member 20 of this embodiment can be a structure that is similar to a rotating shaft. The cross-sectional shape of the rotating member 20 can be circular, rectangular, triangular, etc. The axial direction Z of the rotating member 20 is parallel to the bearing surface 11. The rotating member 20 can be rotatably connected to the bearing surface 11 through any structure such as a bearing, a bracket, and the mounting seat 30 described below. Therefore, the connection between the rotating member 20 and the bearing surface 11 can be understood as an indirect connection.

[0066] The rotating member 20 of this embodiment has a first limit portion 21 and a second limit portion 22 arranged along its own circumference, wherein the circumference of the rotating member 20 mentioned may refer to the encircling direction of the outer contour of the cross section of the rotating member 20. For example, when the cross section of the rotating member 20 is circular, the circumferential direction of the rotating member 20 is the circumferential direction of the outer contour of the cross section of the rotating member 20.

[0067] The first limiting portion 21 of the present embodiment is provided with a plurality of first limiting grooves 211 arranged along the axial direction Z of the rotating member 20, and the first limiting grooves 211 are open at both ends in the direction perpendicular to the bearing surface 11, and the second limiting portion 22 is provided with a plurality of second limiting grooves 221 arranged along the axial direction Z of the rotating member 20, and the second limiting grooves 221 are open at both ends in the direction perpendicular to the bearing surface 11, and along the axial direction Z of the rotating member 20, the size of the second limiting grooves 221 is larger than the size of the first limiting grooves 211, that is, the first limiting grooves 211 of the present embodiment can be adapted to the battery cells 200 with smaller dimensions in the axial direction Z of the rotating member 20, and the second limiting grooves 221 can be adapted to the battery cells 200 with larger dimensions in the axial direction Z of the rotating member 20.

[0068] When it is necessary to transport battery cells 200 of smaller specifications and dimensions, the two rotating members 20 of the present embodiment can be switched to the first state. At this time, the multiple first limiting grooves 211 on one rotating member 20 correspond one-to-one with the multiple first limiting grooves 211 on the other rotating member 20 to form a accommodating structure for accommodating the battery cells 200, that is, any first limiting groove 211 on a rotating member 20 has a first limiting groove 211 on the other rotating member 20 arranged opposite to it along the first direction X. The two first limiting grooves 211 can form a accommodating structure for accommodating the battery cells 200. The accommodating form of the battery cells 200 can be that the two first limiting grooves 211 respectively fix the two ends of the battery cells 200 in the length direction.

[0069] When a battery cell 200 with a larger size needs to be transported, the two rotating members 20 of this embodiment are switched to Figure 1 In the second state, at this time, multiple second limiting grooves 221 on one rotating member 20 correspond one-to-one with multiple second limiting grooves 221 on another rotating member 20 to form a containing structure for accommodating the battery cell 200, that is, any second limiting groove 221 on one rotating member 20 has a second limiting groove 221 on another rotating member 20 arranged opposite to it along the first direction X, and these two second limiting grooves 221 can form a containing structure for accommodating the battery cell 200, and in the axial direction Z of the rotating member 20, the size of the containing structure formed by the two second limiting grooves 221 is larger than the size of the containing structure formed by the above-mentioned two first limiting grooves 211.

[0070] In combination with the above structural description, it can be known that the conveying pallet 100 of the embodiment of the present application is provided with a rotating part 20, and a first limit groove 211 and a second limit groove 221 of different sizes are provided on the rotating part 20. The rotating part 20 can be rotated according to the outline size and shape of the battery cell 200, so that the two rotating parts 20 are switched to the first state or the second state to form two accommodating structures of different specifications and sizes. Battery cells 200 of two different specifications and sizes can be fixed and transported, thereby improving the universality of the conveying pallet 100 for battery cells 200 of different specifications, reducing the required configuration amount of conveying pallets 100 of different sizes, reducing the time for replacing the conveying pallet 100, thereby reducing the cost of transporting the battery cells 200 and improving the efficiency of transporting the battery cells 200.

[0071] Combine again with Figure 1 and attached Figure 2 As shown in , in some examples, optionally, the first limiting portion 21 of this embodiment includes a first limiting surface 212 and a plurality of first limiting blocks 213, and the plurality of first limiting blocks 213 are arranged at intervals on the first limiting surface 212 along the axial direction Z of the rotating member 20, and two adjacent first limiting blocks 213 and the first limiting surface 212 form a first limiting groove 211.

[0072] The first limiting surface 212 of this embodiment can be supported on the rotating member 20 by cutting or injection molding, or a plate-like member can be installed on the rotating member 20 by welding or bonding, and a surface of the plate-like member is used as the first limiting surface 212.

[0073] In this embodiment, multiple first limit blocks 213 are evenly spaced along the axial direction Z of the rotating member 20 on the first limit surface 212. The connection between the first limit block 213 and the first limit surface 212 can be fixedly connected by welding or the like, or the first limit block 213 and the first limit surface 212 can be directly formed as one piece during processing.

[0074] The first limiting groove 211 is formed by two first limiting blocks 213 and a first limiting surface 212. The two first limiting blocks 213 form an opening in a direction perpendicular to the bearing surface 11 to facilitate the entry of the battery cell 200. At the same time, the two first limiting blocks 213 can be used to limit the battery cell 200 in the axial direction Z of the rotating part 20, and the two relative first limiting surfaces 212 can be used to limit the battery cell 200 in the first direction X, so that the battery cell 200 can be well transported and fixed.

[0075] In some examples, optionally, the first limiting block 213 and the first limiting surface 212 of this embodiment are detachably connected.

[0076] There are many ways of detachably connecting the first limit block 213 and the first limit surface 212. For example, the two are connected by snap-on connection, threaded connection, pin connection, etc. The first limit block 213 is designed to be detachably connected to the first limit surface 212, which not only facilitates the installation of the first limit block 213 and the first limit surface 212, but also allows the first limit block 213 to be replaced. For example, a larger or smaller first limit block 213 can be replaced to form first limit grooves 211 of different specifications, and then the size of the containing structure surrounded by the two first limit grooves 211 can be adjusted to match more battery cells 200 of different specifications, thereby further improving the universality of the conveying tray 100 for battery cells 200 of different specifications.

[0077] Figure 4 A schematic diagram of the connection between the first limiting block and the first limiting surface of the conveying tray provided in some embodiments of the present application.

[0078] Combined with Figure 4 As shown in , in some embodiments, the first limit block 213 and the first limit surface 212 of this embodiment are connected by a first connecting member 214, the first limit block 213 is provided with a first connecting hole 2131, the first limit surface 212 is provided with a second connecting hole 2121, and the first connecting member 214 is connected to the first connecting hole 2131 and the second connecting hole 2121.

[0079] The first connecting member 214 of the present embodiment can be a latch structure, in which case the first connecting hole 2131 and the second connecting hole 2121 are both through-hole structures. Of course, the connecting member can also be a bolt, in which case the first connecting hole 2131 of the present embodiment can be a through-hole structure, and the second connecting hole 2121 is a screw hole threadedly connected to the bolt.

[0080] A latch or bolt is used as a connecting member, and a detachable connection is formed by using the first connecting member 214, the first connecting hole 2131 and the second connecting hole 2121. The latch is directly inserted or the bolt is screwed in during assembly, and the latch is directly pulled out or the bolt is screwed out during disassembly. The structure is simple and assembly and disassembly are convenient.

[0081] The second limiting portion 22 of the present embodiment has the same structure as the first limiting portion 21, and the only difference is that the size of the second limiting groove 221 in the axial direction Z of the rotating member 20 is different. Therefore, the present embodiment does not describe the structure of the second limiting portion 22 in detail, and those skilled in the art can refer to the structure of the aforementioned first limiting portion 21 to understand the second limiting portion 22 of the present embodiment.

[0082] Figure 5 A schematic diagram of the structure of a rotating member, a mounting seat and a first brake assembly of a conveyor tray provided in some embodiments of the present application, Figure 6 for Figure 5 Schematic diagram of the structure from another perspective.

[0083] Combined with Figure 1 , Attachment Figure 5 And attached Figure 6 As shown in , in some examples, the conveying tray 100 of this embodiment further includes a mounting seat 30, the mounting seat 30 is connected to the bearing surface 11, and the rotating member 20 is connected to the mounting seat 30 in a manner that it can rotate around its own axis.

[0084] The mounting seat 30 of this embodiment is in the shape of a plate as a whole, and has two extensions 31 extending outward at the connection between the mounting seat 30 and the bearing surface 11, thereby increasing the connection area between the mounting seat 30 and the bearing surface 11. An axial hole (not shown in the figure) is provided in the middle of the mounting seat 30, and one end of the rotating member 20 can be directly inserted into the axial hole, or a bearing (not shown in the figure) can be installed in the axial hole, and one end of the rotating member 20 is connected to the bearing, as long as the rotating member 20 can rotate around its own axis. The setting of the mounting seat 30 is mainly to facilitate the installation and fixing of the rotating member 20, and to enable the rotating member 20 to rotate around its own axis, and to provide support for the rotating member 20.

[0085] In some examples, optionally, the number of the mounting seats 30 in this embodiment is two, and one end of the rotating member 20 at two opposite ends along the axial direction is connected to one mounting seat 30 , and the other end is connected to the other mounting seat 30 .

[0086] Both ends of the rotating member 20 of this embodiment pass through the corresponding mounting seats 30. Specifically, it can be understood that one end of the rotating member 20 passes through one of the mounting seats 30 and is located on the side of the mounting seat 30 away from the other mounting seat 30. The two mounting seats 30 are used to rotatably support the two ends of the rotating member 20, which can improve the structural stability of the rotating member 20 and also improve the stability and reliability of the rotating member 20 during the rotation process.

[0087] Combined with Figure 1 , Attachment Figure 5 And attached Figure 6 As shown in , in some examples, optionally, the conveying tray 100 of this embodiment further includes a first brake assembly 40 , at least one rotating member 20 is connected to the first brake assembly 40 , and the first brake assembly 40 is used to limit the rotation of the rotating member 20 .

[0088] The number of the first brake components 40 in this embodiment can be one or two. When the number of the first brake components is one, it can be directly connected to one end of one of the rotating components 20. When the number of the first brake components is two, the two first brake components 40 are connected to the opposite ends of the rotating component 20 one by one.

[0089] The first brake assembly 40 can be connected to the rotating member 20 in a direct connection manner. For example, the first brake assembly 40 is directly connected to one end of the rotating member 20 passing through the mounting seat 30 , and the first brake assembly 40 can also be detachably connected to the mounting seat 30 or the supporting member 10 .

[0090] When braking is required, the connection between the first brake assembly 40 and the mounting seat 30 or the carrier 10 can limit the rotation of the rotating member 20. When the braking needs to be released and the rotating member 20 of this embodiment is rotated, the connection between the first brake assembly 40 and the mounting seat 30 or the carrier 10 is released so that the rotating member 20 can drive the first brake assembly 40 to rotate. The rotating member 20 can be fixed in the first state or the second state through the first brake assembly 40, thereby reducing the possibility that the rotating member 20 affects the fixing effect of the battery cell 200 due to unnecessary rotation.

[0091] In some examples, optionally, the first brake assembly 40 of the present embodiment includes a first follower 41 and a first brake 42, the first follower 41 is connected to one end of the rotating member 20 and rotates synchronously, the first brake 42 is inserted into the first follower 41, and can move in a direction close to or away from the mounting seat 30, and the mounting seat 30 is provided with a plurality of first sockets 32 spaced along its circumference, and the first sockets 32 are used for plugging and mating with the first brake 42.

[0092] The first follower 41 is plate-shaped or block-shaped, and one end of the first follower 41 is fixedly connected to one end of the rotating member 20 extending out of the mounting seat 30, so that the first follower 41 rotates with the rotation of the rotating shaft, and the other end of the first follower 41 is provided with a connecting hole (not shown in the figure), which can be a through hole or a threaded hole. Accordingly, the first brake member 42 of this embodiment can be a pin or a bolt threadedly connected to the threaded hole.

[0093] Furthermore, the mounting hole of the present embodiment is provided with a plurality of first sockets 32 arranged at intervals along the circumferential direction. When the rotating member 20 of the present embodiment rotates to the point where the plurality of first limiting grooves 211 on the first limiting portion 21 face the plurality of first limiting grooves 211 of another rotating member 20, the first brake member 42 of the present embodiment can move toward the mounting seat 30 in the connecting hole, thereby being plugged into and mated with one of the first sockets 32.

[0094] Similarly, when the rotating member 20 of this embodiment rotates to the point where the multiple second limiting grooves 221 on the second limiting portion 22 face the multiple second limiting grooves 221 of another rotating member 20, the braking member of this embodiment can be plugged into and matched with another first socket 32 ​​to achieve rotational braking of the rotating member 20.

[0095] The first brake member 42 is driven to rotate by the first follower member 41. When the rotating member 20 rotates to the first state or the second state and braking is required, braking is achieved by utilizing the cooperation between the first brake member 42 and the first socket 32. When the brake needs to be released, the first brake member 42 can be directly pulled out. The operation of braking and releasing the brake is simple.

[0096] Combine again with Figure 1 and attached Figure 2 As shown in, in some examples, optionally, the rotating member 20 of this embodiment also includes a third limiting portion 23, the first limiting portion 21, the second limiting portion 22 and the third limiting portion 23 are arranged along the circumferential direction of the rotating member 20, and the third limiting portion 23 is provided with a plurality of third limiting grooves 231 arranged along the axial direction Z of the rotating member 20, and along the axial direction Z of the rotating member 20, the size of the third limiting groove 231 is larger than the size of the second limiting groove 221; the two rotating members 20 can be rotated to the third state, and in the third state, the plurality of third limiting grooves 231 on one rotating member 20 correspond one-to-one with the plurality of third limiting grooves 231 on the other rotating member 20 to form a plurality of accommodating structures for accommodating battery cells 200.

[0097] The third limiting portion 23 of the present embodiment has the same structure as the aforementioned first limiting portion 21 and the second limiting portion 22, and the only difference is that the dimension of the third limiting groove 231 in the axial direction Z of the rotating member 20 is different from the aforementioned first limiting groove 211 and the second limiting groove 221. Therefore, the present embodiment does not describe the structure of the third limiting portion 23 in detail, and those skilled in the art can refer to the structure of the aforementioned first limiting portion 21 to understand the third limiting portion 23 of the present embodiment.

[0098] When the third limiting portion 23 is configured, the first brake assembly 40 can also brake the rotating member 20 in the third state. At this time, the number of the first sockets 32 can be three, one for plugging and mating with the first brake member 42 in the first state, another for plugging and mating with the first brake member 42 in the second state, and another for plugging and mating with the first brake member 42 in the third state.

[0099] The two third limiting grooves 231 on the two third limiting parts 23 can be used to form another type of accommodating structure, so that the conveying tray 100 can fix and transport battery cells 200 of three different sizes, further improving the universality of the conveying tray 100 for battery cells 200 of different sizes.

[0100] Of course, the present embodiment may further include a fourth limiting portion, a fifth limiting portion (not shown in the figure), etc., which are not listed one by one in the present embodiment.

[0101] Figure 7A schematic structural diagram of a sliding assembly and a second brake assembly of a conveyor pallet provided in some embodiments of the present application.

[0102] Combined with Figure 1 and attached Figure 7 As shown in , in some examples, at least one of the two rotating members 20 of this embodiment is slidably connected to the carrier 10 through a sliding assembly 50, and the sliding assembly 50 is configured to enable the rotating member 20 to slide on the carrier 10 along the first direction X.

[0103] In this embodiment, the two rotating members 20 may be connected to the sliding assembly 50 , so that the two rotating members 20 are slidably connected to the supporting member 10 , so as to adjust the distance between the two rotating members 20 in the first direction X.

[0104] In addition to configuring the sliding assembly 50, the sliding connection between the rotating member 20 and the supporting member 10 of the present embodiment can also be that the rotating member 20 is directly slidably connected to the slide on the supporting member 10, and can rotate on the slide (this embodiment is not shown in the figure), or it can be achieved by a sliding connection between the mounting seat 30 and the supporting surface 11, for example, a slide rail is directly configured on the supporting surface 11, and the mounting seat 30 is directly slidably connected to the slide rail (this embodiment is not shown in the figure).

[0105] One or both of the two rotating members 20 are designed to be slidably connected to the supporting member 10, and the distance between the two rotating members 20 can be adjusted along the first direction X to adapt to battery cells 200 of different sizes, thereby further improving the universality of the conveying pallet 100 for battery cells 200 of different specifications, further reducing the cost of transporting the battery cells 200, and improving the efficiency of transporting the battery cells 200.

[0106] In some examples, optionally, the sliding assembly 50 of this embodiment includes a first sliding rail 51 and a first sliding member 52, the first sliding rail 51 is connected to the bearing surface 11 and extends along the first direction X, the first sliding member 52 is slidably connected to the first sliding rail 51, and the rotating member 20 is connected to the first sliding member 52.

[0107] In the present embodiment, the number of sliding components 50 can be two, wherein one group of sliding components 50 is located at one end of the supporting member 10 along the axial direction Z of the rotating member 20, and the other group of sliding components 50 is located at the other end of the supporting member 10 along the axial direction Z of the rotating member 20. The two mounting seats 30 can be respectively connected to the two first sliding members 52 of the two sliding components 50, thereby improving the support for the rotating member 20 and the mounting seat 30, as well as the stability of the rotating member 20 and the mounting seat 30 during the sliding process.

[0108] The first sliding track 51 of this embodiment can be a slide groove opened on the bearing surface 11, or a strip installed on the bearing surface 11, and the first sliding member 52 can be a separate slider. For ease of understanding, the mounting seat 30 is mounted on the first sliding member 52. The sliding of the rotating member 20 is achieved by the sliding connection between the first sliding member 52 and the first sliding track 51, which has a simple structure and is easy to operate the sliding of the rotating member 20.

[0109] In some examples, optionally, the conveying tray 100 of the present embodiment further includes a second brake assembly 60 , and the second brake assembly 60 is used to limit the sliding of the first sliding member 52 on the first sliding rail 51 .

[0110] The number of the second brake components 60 in this embodiment can be one or two. When the number of the second brake components 62 is one, it can be directly connected to one of the first sliding components 52. When the number of the second brake components 62 is two, the two first brake components 40 are connected to the two first sliding components 52 in a one-to-one correspondence.

[0111] The second brake assembly 60 can fix the rotating member 20 after sliding adjustment, thereby reducing the possibility that the rotating member 20 affects the fixing effect of the battery cell 200 due to unnecessary sliding.

[0112] In some examples, optionally, the second brake assembly 60 of the present embodiment includes a second follower 61, a second brake 62 and a fixing member 63; the second follower 61 is connected to the first sliding member 52 and slides synchronously with the first sliding member 52, the second brake 62 is inserted into the second follower 61, the fixing member 63 is connected to the bearing surface 11, and the fixing member 63 is provided with a plurality of second sockets 631 spaced apart along the first direction X, and the second sockets 631 are used for plugging and mating with the second brake 62.

[0113] The second follower 61 of this embodiment is a plate-like or block-like structure, and is provided with a connecting ear 611 extending toward the fixing member 63. The connecting ear 611 is provided with a through hole (not shown in the figure) for inserting the second brake member 62. The second brake member 62 may be a latch or a bolt.

[0114] Correspondingly, the fixing member 63 of this embodiment is provided with a plurality of second insertion holes 631 arranged at intervals along the first direction X. The second insertion holes 631 may be blind holes, through holes or threaded holes.

[0115] When the first sliding member 52 of the present embodiment drives the mounting seat 30 to slide, the second follower member 61 slides with the first sliding member 52. When the mounting seat 30 and the rotating member 20 slide to the ideal position and braking is required, braking is achieved by utilizing the cooperation between the second braking member 62 and the second socket 631. When the braking needs to be released, the second braking member 62 can be directly pulled out. The braking and releasing operations are simple.

[0116] Figure 8 A schematic diagram of the structure of a detection component 70 of a conveyor tray 100 provided in some embodiments of the present application.

[0117] Combined with Figure 1 , Attachment Figure 3 And attached Figure 8 As shown in , in some examples, optionally, the conveying tray 100 further includes a detection component 70, which is connected to the bearing surface 11 and is located between the two rotating members 20, and the detection component 70 is used to detect whether the battery cell 200 is located in the containing structure.

[0118] The detection assembly 70 can be used to detect whether the battery cell 200 is located in the containing structure, which reduces the possibility of the battery cell 200 being offset on the conveying tray 100 and is also beneficial for the subsequent processing of the battery cell 200 .

[0119] In some examples, optionally, the detection assembly 70 of the present embodiment includes a second sliding rail 71, a second sliding member 72 and a proximity sensor 73, the second sliding rail 71 extends along a second direction Y parallel to the axial direction Z of the rotating member 20, and a plurality of second sliding members 72 are arranged at intervals along the second direction Y on the second sliding rail 71, and each second sliding member 72 is mounted with at least one proximity sensor 73.

[0120] The second sliding member 72 can be a slider structure, the second sliding member 72 is slidably connected to the second sliding rail 71, and the second sliding member 72 can be fixed to the third socket of the second sliding rail 71 by a fastener (not shown in the figure), and the fastener can be a bolt, a pin or other structure.

[0121] The two second sliding members 72 and the second sliding rail 71 can provide a storage space for accommodating the battery cell 200. The two ends of the storage space in the first direction X are respectively two rotating members 20, so that a groove structure for accommodating the battery cell 200 is formed by the second sliding member 72, the second sliding rail 71 and the two rotating members 20, so that the battery cell 200 can be better fixed.

[0122] The proximity sensor 73 is installed at one end of the second sliding member 72. The proximity sensor 73 is used to detect the distance between itself and the battery cell 200 located between the two second sliding members 72, and transmit the detected data to the control system of the entire conveying device (not shown in the figure). The control system can be a processor, a PLC control circuit, etc. The control system can be used to determine the distance between the battery cell 200 and the two adjacent second sliding members 72, and further determine whether the battery cell 200 is located in the above-mentioned groove structure.

[0123] In some examples, optionally, the detection assembly 70 further includes a diffuse reflection sensor 74 , and at least one diffuse reflection sensor 74 is mounted on each second sliding member 72 .

[0124] The diffuse reflection sensor 74 can be located in a notch 721 of the second sliding member 72. The reason for configuring the diffuse reflection sensor 74 is that the proximity sensor 73 can only detect the distance between the battery cell 200 and the second sliding member 72 in the second direction Y. When the battery cell 200 is displaced in a direction perpendicular to the supporting surface 11, the proximity sensor 73 may not be able to recognize it. Therefore, the diffuse reflection sensor 74 can be used to further detect the position of the battery cell 200 in a direction perpendicular to the supporting surface 11, thereby improving the detection accuracy of the detection component 70.

[0125] In addition, two support plates 75 are respectively provided on the outer sides of the two second sliding rails 71 of the present embodiment. The two support plates 75 are located between the two rotating members 20. The two second sliding rails 71 are located between the two support plates 75. The battery cell 200 can be placed on the support plate 75 to improve its stability.

[0126] In a second aspect, an embodiment of the present application provides a conveying device, comprising a conveying tray 100 of the above technical solution and a conveying assembly (not shown in the figure), wherein the conveying assembly is used to drive the conveying tray 100 to move along a preset direction.

[0127] The conveying tray 100 is installed on a conveying assembly, and the conveying assembly can be a belt conveying assembly, a chain conveying assembly, etc., which are not listed one by one in this embodiment.

[0128] On the third aspect, an embodiment of the present application provides a battery production system, including a conveying device as described in the above technical solution. The battery production system may also include an assembly device (not shown in the figure) for assembling multiple battery cells 200 located on a tray 100 into a battery module.

[0129] Please see attached Figure 1-8The embodiment of the present application provides a conveying tray 100, which includes a bearing member 10 and two rotating members 20. The bearing member 10 has a bearing surface 11; the two rotating members 20 are connected to the bearing surface 11 in a manner that they can rotate around their own axes, and the two rotating members 20 are arranged opposite to each other along a first direction X, the first direction X is parallel to the bearing surface 11, and intersects with the axial direction of the rotating member 20; the rotating member 20 has a first limiting portion 21 and a second limiting portion 22 arranged along its own circumferential direction, the first limiting portion 21 is provided with a plurality of first limiting grooves 211 arranged along the axial direction of the rotating member 20, and the second limiting portion 22 is provided with a plurality of first limiting grooves 211 arranged along the axial direction of the rotating member 20, and the second limiting portion 22 is provided with a plurality of first limiting grooves 211 arranged along the axial direction of the rotating member 20. A plurality of second limiting grooves 221, along the axial direction of the rotating member 20, the size of the second limiting grooves 221 is greater than the size of the first limiting grooves 211; the two rotating members 20 can rotate between a first state and a second state, in the first state, the plurality of first limiting grooves 211 on one rotating member 20 and the plurality of first limiting grooves 211 on the other rotating member 20 correspond one-to-one to form a plurality of accommodating structures for accommodating battery cells 200, in the second state, the plurality of second limiting grooves 221 on one rotating member 20 and the plurality of first limiting grooves 211 on the other rotating member 20 correspond one-to-one to form a plurality of accommodating structures for accommodating battery cells 200. The first limiting portion 21 includes a first limiting surface 212 and a plurality of first limiting blocks 213, the plurality of first limiting blocks 213 are arranged at intervals on the first limiting surface 212 along the axial direction of the rotating member 20, and two adjacent first limiting blocks 213 and the first limiting surface 212 enclose the first limiting groove 211. The first limiting block 213 and the first limiting surface 212 are detachably connected. The first limit block 213 and the first limit surface 212 are connected by a first connecting member 214. The first limit block 213 is provided with a first connecting hole 2131, the first limit surface 212 is provided with a second connecting hole 2121, and the first connecting member 214 is connected to the first connecting hole 2131 and the second connecting hole 2121. The conveying tray 100 also includes a mounting seat 30, the mounting seat 30 is connected to the bearing surface 11, and the rotating member 20 is connected to the mounting seat 30 in a manner that it can rotate around its own axis. There are two mounting seats 30, one end of the rotating member 20 at opposite ends along the axial direction is connected to one mounting seat 30, and the other end is connected to the other mounting seat 30. The conveying tray 100 also includes a first brake assembly 40, at least one rotating member 20 is connected to the first brake assembly 40, and the first brake assembly 40 is used to limit the rotation of the rotating member 20. The first brake assembly 40 includes a first follower 41 and a first brake 42. The first follower 41 is connected to one end of the rotating member 20 and rotates synchronously. The first brake 42 is inserted into the first follower 41 and can move in a direction close to or away from the mounting seat 30. The mounting seat 30 is provided with a plurality of first sockets 32 at intervals along its circumference. The first sockets 32 are used for plugging and mating with the first brake 42.The rotating member 20 further includes a third limiting portion 23, wherein the first limiting portion 21, the second limiting portion 22 and the third limiting portion 23 are arranged along the circumference of the rotating member 20, and the third limiting portion 23 is provided with a plurality of third limiting grooves 231 arranged along the axial direction of the rotating member 20, and the size of the third limiting grooves 231 along the axial direction of the rotating member 20 is greater than the size of the second limiting grooves 221; the two rotating members 20 can be rotated to a third state, and in the third state, the plurality of third limiting grooves 231 on one rotating member 20 and the plurality of third limiting grooves 231 on the other rotating member 20 correspond to each other one by one to form a plurality of accommodating structures for accommodating battery cells 200. At least one of the two rotating members 20 is connected to the carrier 10 through a sliding assembly 50, and the sliding assembly is configured to enable the rotating member 20 to slide on the carrier 10 along the first direction X. The sliding assembly 50 includes a first sliding rail 51 and a first sliding member 52. The first sliding rail 51 is connected to the bearing surface 11 and extends along the first direction X. The first sliding member 52 is slidably connected to the first sliding rail 51. The rotating member 20 is connected to the first sliding member 52. The conveying tray 100 also includes a second brake assembly 60. The second brake assembly 60 is used to limit the sliding of the first sliding member 52 on the first sliding rail 51. The second brake assembly 60 includes a second follower 61, a second brake 62 and a fixing member 63; the second follower 61 is connected to the first sliding member 52 and slides synchronously with the first sliding member 52. The second brake 62 is inserted into the second follower 61. The fixing member 63 is connected to the bearing surface 11. The fixing member 63 is provided with a plurality of second plug holes 631 spaced apart along the first direction X. The second plug holes 631 are used to be plugged and matched with the second brake 62. The conveying tray 100 also includes a detection assembly 70, which is connected to the bearing surface 11 and is located between the two rotating members 20. The detection assembly 70 is used to detect whether the battery cell 200 is located in the containing structure. The detection assembly 70 includes a second sliding track 71, a second sliding member 72 and a proximity sensor 73. The second sliding track 71 extends along a second direction Y parallel to the axial direction of the rotating member 20. A plurality of second sliding members 72 are arranged at intervals on the second sliding track 71 along the second direction Y, and at least one proximity sensor 73 is installed on each sliding member. The detection assembly 70 also includes a diffuse reflection sensor 74, and at least one diffuse reflection sensor 74 is installed on each second sliding member 72. By adding a diffuse reflection sensor 74, the detection accuracy of the detection assembly 70 can be improved.

[0130] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0131] 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 it. 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 make equivalent replacements for some of the technical features therein, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A conveying tray, characterized in that: include: A bearing member having a bearing surface; Two rotating members are connected to the bearing surface in a manner of being rotatable around their own axes, and the two rotating members are arranged opposite to each other along a first direction, the first direction is parallel to the bearing surface and intersects with the axes of the rotating members; The rotating member has a first limiting portion and a second limiting portion arranged along its circumferential direction, the first limiting portion is provided with a plurality of first limiting grooves arranged along the axial direction of the rotating member, the second limiting portion is provided with a plurality of second limiting grooves arranged along the axial direction of the rotating member, and the size of the second limiting grooves along the axial direction of the rotating member is greater than the size of the first limiting grooves; The two rotating members are capable of rotating between a first state and a second state. In the first state, the multiple first limiting grooves on one rotating member correspond one-to-one with the multiple first limiting grooves on the other rotating member to form a plurality of accommodating structures for accommodating battery cells. In the second state, the multiple second limiting grooves on one rotating member correspond one-to-one with the multiple second limiting grooves on the other rotating member to form a plurality of accommodating structures for accommodating battery cells.

2. The conveying tray according to claim 1, characterized in that: The first limiting portion includes a first limiting surface and a plurality of first limiting blocks, wherein the plurality of first limiting blocks are arranged on the first limiting surface at intervals along the axial direction of the rotating member, and two adjacent first limiting blocks and the first limiting surface form the first limiting groove.

3. The conveying tray according to claim 2, characterized in that: The first limiting block and the first limiting surface are detachably connected.

4. The conveying tray according to claim 3, characterized in that: The first limiting block and the first limiting surface are connected via a first connecting member, the first limiting block is provided with a first connecting hole, the first limiting surface is provided with a second connecting hole, and the first connecting member is connected to the first connecting hole and the second connecting hole.

5. The conveying tray according to claim 1, characterized in that: The conveying tray also includes a mounting seat, the mounting seat is connected to the bearing surface, and the rotating member is connected to the mounting seat in a manner of being rotatable around its own axial direction.

6. The conveying tray according to claim 5, characterized in that: There are two mounting seats, one of two opposite ends of the rotating member along the axial direction is connected to one mounting seat, and the other end is connected to the other mounting seat.

7. The conveying tray according to claim 6, characterized in that: The conveying tray further comprises a first brake assembly, and at least one of the rotating members is connected to the first brake assembly, wherein the first brake assembly is used to limit the rotation of the rotating member.

8. The conveying tray according to claim 7, characterized in that: The first brake assembly includes a first follower and a first brake member, the first follower is connected to one end of the rotating member and rotates synchronously, the first brake member is inserted into the first follower and can move in a direction close to or away from the mounting seat, and the mounting seat is provided with a plurality of first sockets spaced along its circumference, and the first sockets are used for plugging and mating with the first brake member.

9. The conveying tray according to claim 1, characterized in that: The rotating member further comprises a third limiting portion, wherein the first limiting portion, the second limiting portion and the third limiting portion are arranged along the circumferential direction of the rotating member, and the third limiting portion is provided with a plurality of third limiting grooves arranged along the axial direction of the rotating member, and along the axial direction of the rotating member, the size of the third limiting groove is greater than the size of the second limiting groove; The two rotating members can rotate to a third state. In the third state, the multiple third limiting grooves on one rotating member correspond to and cooperate with the multiple third limiting grooves on the other rotating member to form a plurality of accommodating structures for accommodating battery cells.

10. The conveying tray according to claim 1, characterized in that: At least one of the two rotating members is connected to the supporting member via a sliding assembly, and the sliding assembly is configured to enable the rotating member to slide on the supporting member along the first direction.

11. The conveying tray according to claim 10, characterized in that: The sliding assembly includes a first sliding track and a first sliding member. The first sliding track is connected to the bearing surface and extends along the first direction. The first sliding member is slidably connected to the first sliding track. The rotating member is connected to the first sliding member.

12. The conveying tray according to claim 11, characterized in that: The conveying tray further includes a second brake assembly, and the second brake assembly is used to limit the sliding of the first sliding member on the first sliding track.

13. The conveying tray according to claim 12, characterized in that: The second brake assembly includes a second follower, a second brake and a fixed member; the second follower is connected to the first sliding member and slides synchronously with the first sliding member, the second brake is inserted into the second follower, the fixed member is connected to the bearing surface, and the fixed member is provided with a plurality of second sockets spaced apart along the first direction, and the second sockets are used for plugging and cooperating with the second brake member.

14. The conveying tray according to any one of claims 1 to 13, characterized in that: The conveying tray further comprises a detection assembly, which is connected to the bearing surface and is located between the two rotating members. The detection assembly is used to detect whether the battery cell is located in the containing structure.

15. The conveying tray according to claim 14, characterized in that: The detection component includes a second sliding track, a second sliding member and a proximity sensor. The second sliding track extends along a second direction parallel to the axial direction of the rotating member. A plurality of second sliding members are arranged on the second sliding track at intervals along the second direction. At least one proximity sensor is installed on each of the second sliding members.

16. The conveying tray according to claim 15, characterized in that: The detection assembly also includes a diffuse reflection sensor, and each of the second sliding members is equipped with at least one diffuse reflection sensor.

17. A conveying device, characterized in that: include: A conveyor pallet as claimed in any one of claims 1 to 16; and A conveying assembly is used to drive the conveying tray to move along a preset direction.

18. A battery production system, characterized in that: Comprising the delivery device of claim 17.

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