Battery cell grading equipment and battery cell grading system

Abstract

The utility model provides battery cell grading equipment and a battery cell grading system. The battery cell grading equipment comprises a grading carrying mechanism, a cache sliding mechanism and a tray assembling carrying mechanism, the caching sliding mechanism comprises a plurality of sliding tables, each sliding table is provided with a battery cell jig, each battery cell jig comprises a plurality of caching positions, and each caching position is used for caching incoming battery cells; wherein the plurality of battery cell jigs are used for caching incoming battery cells at different gears, and the gears of the incoming battery cells cached by the same battery cell jig are the same; the grading carrying mechanism is used for carrying the incoming battery cell to a target cache position of the battery cell jig at the gear corresponding to the incoming battery cell; the cache sliding mechanism is used for controlling the cached battery cell jig to slide from the current position of the sliding table to the target position under the condition that the cache of the battery cell jig is completed; and the group tray carrying mechanism is used for carrying a plurality of incoming material battery cells on the battery cell jig at the target position to the group tray at the corresponding gear.

Description

Technical Field

[0001] The present application relates to the field of new energy battery technology, and in particular to a battery cell grading device and a battery cell grading system. Background Art

[0002] Lithium batteries have become ideal energy carriers in the market due to their high operating voltage, small size, light weight, high energy, and long cycle life. In the production process of lithium-ion batteries, capacity is one of the important indicators to measure battery performance. However, the materials and processes used in lithium battery production cannot achieve complete consistency, so there will be certain differences in the capacity of batteries in the same batch. In order to reduce the reduction in the service life of the entire module caused by differences between batteries, battery cell grading is introduced.

[0003] At present, battery cells are mostly sorted by belt conveyors, that is, the battery cells in one gear are transported by a corresponding conveyor belt, but this method has the problem of low sorting efficiency. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a battery cell grading device and a battery cell grading system to solve the problem of low grading efficiency in the current battery cell grading using a pull belt.

[0005] In the first aspect, the utility model provides a battery cell grading device, which includes a grading transport mechanism, a cache sliding mechanism and a tray transport mechanism; the cache sliding mechanism includes multiple slides, each slide is provided with a battery cell fixture, each battery cell fixture includes multiple cache positions, and each cache position is used to cache incoming battery cells; wherein, multiple battery cell fixtures cache incoming battery cells of different gears, and the gears of the incoming battery cells cached by the same battery cell fixture are the same; the grading transport mechanism is used to transport the incoming battery cells to the target cache position of the battery cell fixture corresponding to the gear of the incoming battery cells; the cache sliding mechanism is used to control the battery cell fixture that has completed caching to slide from the current position of the slide to the target position when the battery cell fixture caching is completed; wherein the completion of the battery cell fixture caching indicates that all cache positions of the battery cell fixture are cached with incoming battery cells; the tray transport mechanism is used to transport multiple incoming battery cells on the battery cell fixture at the target position to the tray tray of the corresponding gear.

[0006] The battery cell grading equipment designed as above arranges multiple battery cell fixtures on multiple slides of the cache sliding mechanism, and each battery cell fixture includes multiple cache positions for caching the same battery cell position, so that multiple battery cells of different positions can be cached at one time, thereby improving the efficiency of battery cell grading. In addition, this solution realizes an automated battery cell grading and conveying process by designing a grading conveying mechanism and a group tray conveying mechanism, thereby further improving the automation and efficiency of battery cell grading.

[0007] In an optional embodiment of the first aspect, the cache sliding mechanism also includes a support frame, which is perpendicular to the placement plane of the battery cell grading equipment; the multiple slides include a first slide group and a second slide group, the first slide group and the second slide group are both mounted on the support frame, the height of the second slide group relative to the placement plane is greater than the height of the first slide group relative to the placement plane, the multiple slides of the first slide group have the same height relative to the placement plane, the multiple slides of the second slide group have the same height relative to the placement plane, and the slide rail directions of the multiple slides of the first slide group and the second slide group are the same.

[0008] In the above implementation mode, the buffer sliding mechanism of the present solution includes a first slide group and a second slide group of upper and lower layers, thereby increasing the number of battery cell fixtures on the slide, thereby further improving the efficiency of the incoming battery cell grading.

[0009] In an optional implementation of the first aspect, a vertical distance between the second slide group and the first slide group is greater than a length of the battery cell fixture perpendicular to the placement plane.

[0010] In the above implementation mode, the vertical distance between the second slide group and the first slide group is designed to be greater than the length of the battery cell fixture perpendicular to the placement plane, so that the upper and lower slides do not interfere with each other.

[0011] In an optional implementation of the first aspect, each battery cell fixture in the first slide group has a different gear position for the incoming battery cells cached; and each battery cell fixture in the second slide group has a different gear position for the incoming battery cells cached.

[0012] In the above implementation mode, the scheme designs that each battery cell fixture in the first slide group caches the incoming battery cell gears at different levels; each battery cell fixture in the second slide group caches the incoming battery cell gears at different levels, and the incoming battery cell gears cached between the first slide group and the second slide group can be the same, thereby avoiding the problem that the battery cell fixture on the slide of a certain gear is at the target position and has not returned yet, but the incoming battery cells at this gear need to be cached, thereby causing the incoming battery cell caching delay problem, and further improving the battery cell sorting efficiency.

[0013] In an optional implementation of the first aspect, the incoming battery cells buffered by each battery cell fixture in the first slide group and the second slide group have different gears.

[0014] In the above implementation mode, the scheme designs each battery fixture to cache different levels of incoming batteries, thereby improving the grading capability of multi-level incoming batteries.

[0015] In an optional embodiment of the first aspect, the battery cell jig includes a jig base plate, a first jig end plate, a second jig end plate, a plurality of first limit plates and a plurality of second limit plates; the first end of the jig base plate is fixedly connected to the first jig end plate, and the second end of the jig base plate is fixedly connected to the second jig end plate; wherein the first end and the second end of the jig base plate are arranged opposite to each other; a plurality of first limit plates are arranged at intervals on the first jig end plate, and a plurality of second limit plates are arranged at intervals on the second jig end plate, and each first limit plate is directly opposite to a second limit plate, so as to form a plurality of cache positions through a plurality of first limit plates, a plurality of second limit plates, a first jig end plate, a second end plate and a jig base plate.

[0016] In the above implementation mode, the present scheme forms multiple cache positions through a simple jig bottom plate, a first jig end plate, a second jig end plate, multiple first limit plates and multiple second limit plates, so that the designed battery cell jig can cache multiple incoming battery cells at one time, with a simple structure and reduced costs.

[0017] In an optional implementation of the first aspect, a first sensor is provided on each cache position, and the first sensor is used to detect whether an incoming battery cell is cached on the corresponding cache position.

[0018] In an optional implementation of the first aspect, a second sensor is provided at the target position of each slide; the second sensor is used to send a transport start signal to the assembly tray transport mechanism when the battery cell fixture reaches the target position.

[0019] In an optional implementation of the first aspect, both the step-by-step transport mechanism and the pallet assembly transport mechanism are robots.

[0020] In a second aspect, the utility model provides a battery cell grading system, which comprises a battery cell grading device, an incoming battery cell temporary storage mechanism, a code scanning device and a plurality of group trays according to any one of the aforementioned embodiments, each group tray corresponding to a different battery cell gear position; wherein the incoming battery cell temporary storage mechanism is used to store the incoming battery cells; the code scanning device is used to scan and identify the gear position information of the incoming battery cells, and transmit the identified gear position information of the incoming battery cells to the grading conveying mechanism; the group conveying mechanism is used to convey the incoming battery cells in the incoming battery cell temporary storage mechanism to the target cache position of the battery cell fixture corresponding to the gear position of the incoming battery cells according to the gear position information of the incoming battery cells; the cache sliding mechanism is used to control the battery cell fixture that has completed caching to slide from the current position of the slide to the target position when the battery fixture caching is completed; the group tray conveying mechanism is used to convey the multiple incoming battery cells on the battery fixture at the target position to the group tray of the corresponding gear position, wherein different slides correspond to different target positions, and each target position is associated with the battery cell gear position cached by the corresponding battery fixture.

[0021] The battery cell grading system designed above includes the battery cell grading equipment described above. Therefore, multiple battery cell fixtures are arranged on multiple slides of the cache sliding mechanism of the designed battery cell grading system. Each battery cell fixture includes multiple cache positions for caching the same battery cell position, so that multiple battery cells of different positions can be cached at one time, thereby improving the efficiency of battery cell grading. In addition, this scheme realizes the automated battery cell grading and conveying process by designing a grading transport mechanism and a group tray transport mechanism, thereby further improving the automation and efficiency of battery cell grading. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0023] Figure 1 A schematic diagram of the overall structure of a battery cell grading device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a battery fixture caching battery cells provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of the battery cell fixture provided in the embodiment of the present application without a cache battery cell;

[0026] Figure 4 A schematic diagram of the structure of the cache sliding mechanism provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the overall structure of the battery cell grading system provided in an embodiment of the present application.

[0028] Icons: 1-battery cell grading equipment; 2-incoming battery cell temporary storage mechanism; 3-barcode scanning device; 10-grading transport mechanism; 20-cache sliding mechanism; 210-slide; 2110-second sensor; 2120-first slide group; 2130-second slide group; 220-battery cell fixture; 2210-cache position; 2220-fixture bottom plate; 2230-first fixture end plate; 2240-second fixture end plate; 2250-first limit plate; 2260-second limit plate; 2270-first sensor; 230-support frame; 30-group tray transport mechanism; B-group tray tray. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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).

[0035] 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.

[0036] 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.

[0037] Lithium batteries have become ideal energy carriers in the market due to their high operating voltage, small size, light weight, high energy, and long cycle life. In the production process of lithium-ion batteries, capacity is one of the important indicators to measure battery performance. However, the materials and processes used in lithium battery production cannot achieve complete consistency, so there will be certain differences in the capacity of batteries in the same batch. In order to reduce the reduction in the service life of the entire module caused by differences between batteries, battery cell grading is introduced.

[0038] At present, battery cells are mostly sorted by belt conveyors, that is, the battery cells in one gear are transported by a corresponding conveyor belt, but this method has the problem of low sorting efficiency.

[0039] Based on the above problems, the present application designs a battery cell grading equipment and a battery cell grading system. By arranging multiple battery cell fixtures on multiple slides of the cache sliding mechanism, each battery cell fixture includes multiple cache positions for caching the same battery cell position, so that multiple battery cells of different positions can be cached at one time, thereby improving the efficiency of battery cell grading. In addition, this solution realizes an automated battery cell grading and conveying process by designing a grading conveying mechanism and a group tray conveying mechanism, thereby further improving the automation and efficiency of battery cell grading.

[0040] Based on the above ideas, the present application first provides a battery cell grading device, such as Figure 1 and Figure 2 As shown, the battery cell grading device includes a grading transport mechanism 10 , a buffer sliding mechanism 20 and a tray assembly transport mechanism 30 .

[0041] The cache sliding mechanism 20 includes a plurality of slides 210, each of which is provided with a battery fixture 220, each battery fixture 220 includes a plurality of cache positions 2210, and each cache position 2210 is used to cache incoming battery cells. Among them, the plurality of battery fixtures 220 of the cache sliding mechanism 20 designed in this scheme can cache incoming battery cells of different gears, and the plurality of cache positions 2210 of the same battery fixture 220 cache incoming battery cells of the same gear, so that the cache sliding mechanism 20 designed in this scheme can not only cache incoming battery cells of multiple different gears at one time, but also cache multiple incoming battery cells of the same kind at one time.

[0042] In the case of application, the cell binning device of the above design transports the incoming cell to the target cache position 2210 of the cell fixture 220 corresponding to the gear of the incoming cell. Each incoming cell is provided with an identification code, and the cell gear information of the incoming cell can be obtained by scanning the identification code with a barcode scanner. After the barcode scanner scans and identifies the cell gear information of the incoming cell, it can be sent to the binning transport mechanism 10, so that the binning transport mechanism 10 can accurately place the incoming cell on the target cache position 2210 of the target cell fixture 220 according to the cell gear information of the incoming cell.

[0043] The cache sliding mechanism 20 is used to control the battery fixture 220 that has completed caching to slide from the current position of the slide 210 to the target position when the caching of the battery fixture 220 is completed; wherein the caching of the battery fixture 220 is completed means that all cache positions 2210 of the battery fixture are cached with incoming batteries. For example, assuming that the battery fixture 220 has 4 cache positions 2210, the cache sliding mechanism 20 controls the battery fixture 220 to slide from the current position of the slide 210 to the target position only when all 4 cache positions 2210 of the battery fixture 220 are cached with incoming batteries.

[0044] In the above situation, the assembly tray transport mechanism 30 designed in this solution transports the multiple incoming battery cells on the battery fixture 220 at the target position to the assembly tray B of the corresponding gear. Among them, different slides 210 correspond to different target positions. For example, this solution can use the first end of each slide 210 as the current position, and the second end of each slide 210 opposite to the first end as the corresponding target position. In addition, the assembly tray B designed in this solution may include multiple assembly trays with different battery cell gears. In this case, this solution can associate the target position of each slide 210 with the assembly tray of the corresponding battery cell gear.

[0045] The battery cell grading equipment designed as above arranges multiple battery cell fixtures on multiple slides of the cache sliding mechanism, and each battery cell fixture includes multiple cache positions for caching the same battery cell position, so that multiple battery cells of different positions can be cached at one time, thereby improving the efficiency of battery cell grading. In addition, this solution realizes an automated battery cell grading and conveying process by designing a grading conveying mechanism and a group tray conveying mechanism, thereby further improving the automation and efficiency of battery cell grading.

[0046] In an optional implementation of this embodiment, if Figure 3As shown, each battery cell fixture 220 may include a fixture bottom plate 2220, a first fixture end plate 2230, a second fixture end plate 2240, a plurality of first limiting plates 2250 and a plurality of second limiting plates 2260, wherein the first end of the fixture bottom plate 2220 is fixedly connected to the first fixture end plate 2230, and the second end of the fixture bottom plate 2220 is fixedly connected to the second fixture end plate 2240; wherein the first end and the second end of the fixture bottom plate 2220 are arranged opposite to each other; A plurality of first limit plates 2250 are arranged at intervals on the first jig end plate 2230, and a plurality of second limit plates 2260 are arranged at intervals on the second jig end plate 2240. Each first limit plate 2250 is directly opposite to a second limit plate 2260, so as to form a plurality of cache positions 2210 through a plurality of first limit plates 2250, a plurality of second limit plates 2260, a first jig end plate 2230, a second jig end plate 2240 and a jig bottom plate 2220.

[0047] In the battery cell fixture designed as above, each first limiting plate 2250 and the second limiting plate 2260 directly opposite thereto, as well as the fixture end plates at both ends and the fixture bottom plate 2220 form a cache position 2210, and the incoming battery cells can be fixed in the cache position 2210 to achieve cache on the battery cell fixture 220.

[0048] In an optional implementation of this embodiment, if Figure 3 As shown, each cache position 2210 of each battery fixture 220 is provided with a first sensor 2270, and the first sensor 2270 is used to detect whether the incoming battery cell is cached in the corresponding cache position 2210. Specifically, as a possible implementation, the first sensor 2270 may be a radar sensor, which determines whether the incoming battery cell is cached in the cache position 2210 by whether the radar return signal is received. As another possible implementation, the first sensor 2270 may also be an infrared sensor or other forms of sensors such as a distance sensor, etc., so as to detect whether the incoming battery cell is cached in the cache position 2210.

[0049] Specifically, when the first sensor 2270 is set on the above-mentioned cache position 2210, the grading and conveying mechanism 10 can be electrically connected or communicated with each first sensor 2270. When the corresponding cache position 2210 has incoming battery cells cached, the first sensor 2270 sends an electrical signal to the grading and conveying mechanism 10, so that the grading and conveying mechanism 10 knows the current cache status on each battery cell fixture 220, thereby realizing accurate discharge of the incoming battery cells. In addition, the present solution can also set numbers for each battery cell fixture and the corresponding cache position 2210. For example, assuming there are two battery cell fixtures 220, each battery cell fixture has 4 cache positions 2210, the cache positions on the first battery cell fixture can be numbered 220A-1, 220A-2, 220A-3 and 220A-4, and the cache positions on the second battery cell fixture can be numbered 220B-1, 220B-2, 220B-3 and 220B-4, and the present solution can be designed so that each time the grading and conveying mechanism 10 discharges materials, the grading and conveying mechanism 10 can accurately know the cache status of each cache position 2210 through such numbering distinction, thereby achieving precise material discharge.

[0050] It should also be noted here that when all the first sensors 2270 on the battery cell fixture 220 detect signals that incoming battery cells are cached, the sliding start is triggered, so that the battery cell fixture 220 with the cache position 2210 fully cached slides from the current position of the slide 210 to the target position of the slide.

[0051] In an optional implementation of this embodiment, if Figure 4 As shown, a second sensor 2110 is disposed at the target position of each slide 210 , and each second sensor 2110 is used to send a transport start signal to the assembly tray transport mechanism 30 when the battery cell fixture 220 on the slide 210 reaches the target position.

[0052] Specifically, as a possible implementation, the second sensor 2110 may be a pressure sensor, which is disposed at the target position of the slide 210. For example, the pressure sensor may be disposed on the slide rail at the target position of the slide 210. The pressure sensor may also be disposed at the end of the slide 210 at the target position and perpendicular to the ground. When the battery cell fixture 220 on the slide 210 slides to the target position, the battery cell fixture 220 generates pressure (disposed on the slide rail) or touches (disposed at the end perpendicular to the ground) the second sensor 2110, thereby causing the second sensor 2110 to generate a transport start signal and send it to the assembly tray transport mechanism 30. Among them, the transport start signal sent by the second sensor 2110 may include the slide number or the battery fixture number corresponding to the target position where the second sensor 2110 is located, so that the assembly tray transport mechanism 30 can know the battery cell gear position information of the incoming battery cells cached by the battery fixture, and then the assembly tray transport mechanism 30 can accurately transport the incoming battery cells on the battery fixture to the assembly tray B of the corresponding gear.

[0053] The implementation of the above design can be illustrated by the following examples:

[0054] Assume that there are a total of three different gears of incoming battery cells that need to be graded, for example, the first gear, the second gear and the third gear. In this case, the cache sliding mechanism 20 designed in the present scheme may include three slides, namely slide 210A, slide 210B and slide 210C. A battery fixture 220 is provided on each slide. Different battery fixtures 220 cache the incoming battery cells with different gears. For example, the battery fixture on slide 210A corresponds to the first gear, the battery fixture on slide 210B corresponds to the second gear of cache, and the battery fixture on slide 210C corresponds to the third gear of cache. Each battery fixture 220 is provided with 3 cache positions 2210. The present application also includes three assembly trays, and the battery gears placed on each assembly tray correspond to the corresponding three different gears.

[0055] Initially, each battery cell fixture 220 is located at the current position of the corresponding slide. The graded transport mechanism 10 can place the incoming battery cell on the target slide according to the gear information of the incoming battery cell sent by the barcode scanner. For example, if the current incoming battery cell is in the first gear, the graded transport mechanism 10 will place the incoming battery cell in the battery cell fixture on the slide 210A. If the current incoming battery cell is in the second gear, the graded transport mechanism 10 will place the incoming battery cell in the battery cell fixture on the slide 210B. If the current incoming battery cell is in the third gear, the graded transport mechanism 10 will place the incoming battery cell in the battery cell fixture on the slide 210C. During this period, the first sensor 2270 on each cache position 2210 detects whether there is an incoming battery cell cached in the corresponding cache position 2210.

[0056] When the cache positions 2210 of the battery fixture 220 on a certain slide are all cached with incoming battery cells, that is, when the first sensors 2270 of all the cache positions 2210 of the battery fixture 220 detect the cache signal, the battery fixture 220 is triggered to slide. For example, when the cache positions 2210 of the battery fixture on the slide 210A are all cached with the first gear of incoming battery cells, the battery fixture on the slide 210A slides from the current position to the target position of the slide 210.

[0057] When the battery fixture on the slide 210A slides to the target position, the second sensor 2110 located at the target position of the slide 210A sends a transport start signal to the assembly tray transport mechanism 30, and the assembly tray transport mechanism 30 transports the incoming battery cells in the battery fixture on the target position of the slide 210A to the assembly tray of the corresponding gear. Among them, as a possible implementation, the target position corresponding to each slide can be associated with the battery cell gear position cached by itself, for example, the position information of the target position of the slide 210A can be associated with the first gear, the position information of the target position of the slide 210B can be associated with the second gear, and the position information of the target position of the slide 210C can be associated with the third gear. The transport start signal sent by the second sensor 2110 carries the position information of the target position, so that the assembly tray transport mechanism 30 can know the battery cell gear according to the position information of the target position, and then accurately put it into the assembly tray of the corresponding gear. As another possible implementation, the battery cell position cached on each slide is fixed, so that the second sensors of multiple slides can be numbered in advance, and different numbers are associated with corresponding battery cell positions and target positions and set in the assembly tray transport mechanism 30, so that the assembly tray transport mechanism 30 can know the position information of the battery cell position and the target position according to the number of the second sensor, and then accurately place it in the assembly tray of the corresponding position.

[0058] In an optional implementation of this embodiment, if Figure 4As shown, the cache sliding mechanism 20 may also include a support frame 230, which is perpendicular to the placement plane (e.g., the ground) of the battery cell grading equipment, and a plurality of slides 210 including a first slide group 2120 and a second slide group 2130, the first slide group 2120 and the second slide group 2130 are both mounted on the support frame, the height of the second slide group 2130 relative to the placement plane (e.g., the ground) is greater than the height of the first slide group 2120 relative to the placement plane (e.g., the ground), that is, the second slide group 2130 is located above the first slide group 2120, the plurality of slides 210 of the first slide group 2120 have the same height relative to the placement plane, the plurality of slides of the second slide group 2130 have the same height relative to the placement plane, and the slide rail directions of the plurality of slides of the first slide group 2120 and the second slide group 2130 are the same, and the vertical distance between the second slide group 2130 and the first slide group 2120 is greater than the length of the battery cell fixture 220 perpendicular to the placement plane.

[0059] In the implementation mode of the above-mentioned design, the buffer sliding mechanism 20 of the present solution is designed to include an upper and lower slide table, thereby increasing the number of battery cell fixtures 220 on the slide table, thereby further improving the efficiency of the incoming battery cell classification.

[0060] In addition, in the present solution, the vertical distance between the second slide group 2130 and the first slide group 2120 is greater than the length of the battery cell fixture 220 perpendicular to the placement plane, so that the upper and lower slides do not interfere with each other.

[0061] In the optional implementation of this embodiment, please continue to refer to Figure 4 Seen from the top view, the current position and target position of the first slide group 2120 designed in this scheme are completely located within the second slide group 2130, so that the current position and target position of the second slide group 2130 do not overlap with the first slide group 2120, so that the scoring conveying mechanism 10 and the group plate conveying mechanism 30 do not interfere with each other in the material picking and placing of the first slide group 2120 and the second slide group 2130.

[0062] In an optional implementation of the present embodiment, as a possible implementation, the incoming battery cell gears cached by each battery cell fixture 220 in the first slide group 2120 of the present scheme are different, and the incoming battery cell gears cached by each battery cell fixture in the second slide group are different, but the incoming battery cell gears cached by the first slide group and the second slide group can be the same. For example, assuming that the battery cell gears are divided into three gears, the first gear, the second gear, and the third gear, and the first slide group 2120 and the second slide group 2130 each have three slides, then the three slides on the first slide group 2120 can correspond to the three battery cell gears respectively, and the three slides on the second slide group 2130 can also correspond to the three battery cell gears respectively.

[0063] The implementation method of the above design is that the incoming battery cells cached by each battery cell fixture in the first slide group are different in gear; the incoming battery cells cached by each battery cell fixture in the second slide group are different in gear, and the incoming battery cells cached between the first slide group and the second slide group can be the same, thereby avoiding the problem that the battery cell fixture on the slide of a certain gear is at the target position and has not returned yet, but the incoming battery cells of this gear need to be cached, thereby causing the incoming battery cell caching delay problem, and further improving the battery cell sorting efficiency.

[0064] In an optional implementation manner of the present embodiment, as another possible implementation manner, the gear position of each battery cell fixture designed in the present scheme can be different. For example, assuming that there are exactly 6 battery cell gear positions, the first slide group 2120 and the second slide group 2130 each have three slides. In this case, the battery cell fixtures arranged on each slide 210 have different gear positions for the incoming battery cells cached.

[0065] In the above implementation mode, the scheme designs each battery fixture to cache different levels of incoming batteries, thereby improving the grading capability of multi-level incoming batteries.

[0066] In an optional implementation manner of the present embodiment, in addition to the upper and lower layer structures including the first slide group 2120 and the second slide group 2130 described above, the cache sliding mechanism 20 designed in the present application can also be a single-layer structure for cost considerations, and its specific structure and the number of slides can be adaptively adjusted according to the actual application scenario.

[0067] In an optional implementation of the present embodiment, the above-described step-by-step conveying mechanism 10 and the pallet-assembling conveying mechanism 30 can both be manipulators, wherein the number of mechanical claws of the manipulator of the step-by-step conveying mechanism 10 can be the same as or different from the number of mechanical claws of the manipulator of the pallet-assembling conveying mechanism 30, and the number of mechanical claws of the manipulator of the pallet-assembling conveying mechanism 30 can be the same as the number of incoming battery cells cached in the battery fixture 220, so that the pallet-assembling conveying mechanism 30 can convey all the incoming battery cells on the battery fixture 220 to the pallet-assembling conveying mechanism at one time.

[0068] The present application also provides a battery cell grading system, such as Figure 5 As shown, the battery cell grading system includes the battery cell grading device 1 described in any one of the aforementioned embodiments, the incoming battery cell temporary storage mechanism 2, the code scanning device 3 and a plurality of assembly trays B, each assembly tray B corresponding to a different battery cell gear position.

[0069] Among them, the incoming battery cell temporary storage mechanism 2 is used to store the incoming battery cells; the code scanning device 3 is used to scan and identify the gear information of the incoming battery cells, and transmit the identified gear information of the incoming battery cells to the grade conveying mechanism 10, and the grade conveying mechanism 10 conveys the incoming battery cells in the incoming battery cell temporary storage mechanism 2 to the target cache position 2210 of the battery fixture 220 corresponding to the gear of the incoming battery cells according to the gear information of the incoming battery cells; the cache sliding mechanism 20 controls the battery fixture 220 that has completed the cache to slide from the current position of the slide 210 to the target position when the battery fixture 220 is cached; the assembly tray conveying mechanism 30 conveys multiple incoming battery cells on the battery fixture 220 at the target position to the assembly tray B of the corresponding gear, wherein different slides correspond to different target positions, and each target position is associated with the battery gear of the corresponding battery fixture cached.

[0070] The cell binning system designed above can be illustrated by the following example:

[0071] Assuming that a total of four different gears of incoming battery cells need to be graded, for example, the first gear, the second gear, the third gear and the fourth gear, the present solution designs two incoming battery cell temporary storage mechanisms 2, each of which can temporarily store two incoming battery cells, the graded handling mechanism 10 is two manipulators, and the manipulator of each graded handling mechanism 10 corresponds to one incoming battery cell temporary storage mechanism 2, the cache sliding mechanism 20 includes a first slide group 2120 and a second slide group 2130, and each slide group includes 4 slides, the assembly tray handling mechanism 30 is a manipulator, and the number of mechanical claws of the manipulator is the same as the number of cache positions 2210 of the battery fixture 220, and the battery cell grading system also includes four assembly trays, and each assembly tray corresponds to a battery cell gear position.

[0072] Each time two incoming battery cells are transferred from the previous process and temporarily stored in the incoming battery cell temporary storage mechanism 2, the scanning device 3 scans the incoming battery cells to identify the battery cell gear information of the incoming battery cells, and transmits the battery cell gear information of the incoming battery cells to the graded conveying mechanism 10, the graded conveying mechanism 10 grabs the two incoming battery cells from the corresponding incoming battery cell temporary storage mechanism 2, and respectively places the two incoming battery cells into the battery cell fixture 220 of the corresponding gear, wherein the placement principle is consistent with the previous description and will not be repeated here.

[0073] When the cache positions 2210 of the battery fixture 220 on a certain slide all cache incoming battery cells, that is, when the first sensors 2270 of all cache positions 2210 of the battery fixture 220 detect cache signals, the battery fixture 220 is triggered to slide, and the battery fixture slides from the current position to the target position of the slide 210.

[0074] When the cell fixture on the slide slides to the target position, the second sensor 2110 located at the target position of the slide sends a transport start signal to the assembly tray transport mechanism 30, and the assembly tray transport mechanism 30 transports the incoming cells in the cell fixture at the target position of the slide to the assembly tray B of the corresponding gear. The specific method is similar to the above description and will not be repeated here.

[0075] The battery cell grading system designed above includes the battery cell grading equipment described above. Therefore, multiple battery cell fixtures are arranged on multiple slides of the cache sliding mechanism of the designed battery cell grading system. Each battery cell fixture includes multiple cache positions for caching the same battery cell position, so that multiple battery cells of different positions can be cached at one time, thereby improving the efficiency of battery cell grading. In addition, this scheme realizes the automated battery cell grading and conveying process by designing a grading transport mechanism and a group tray transport mechanism, thereby further improving the automation and efficiency of battery cell grading.

[0076] 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 battery cell grading device, It is characterized in that The battery cell grading equipment includes a grading transport mechanism, a buffer sliding mechanism and a tray assembly transport mechanism; The cache sliding mechanism includes a plurality of slides, each slide is provided with a battery fixture, each battery fixture includes a plurality of cache positions, and each cache position is used to cache incoming battery cells; wherein the plurality of battery fixtures cache incoming battery cells of different gears, and the incoming battery cells cached by the same battery fixture have the same gear; The step-by-step transport mechanism is used to transport the incoming battery cells to the target cache position of the battery cell fixture corresponding to the gear position of the incoming battery cells; The cache sliding mechanism is used to control the battery fixture that has completed caching to slide from the current position of the slide to the target position when the battery fixture has completed caching; wherein the completion of caching of the battery fixture indicates that all cache positions of the battery fixture have cached incoming batteries; The assembly tray transport mechanism is used to transport multiple incoming battery cells on the battery cell fixture at the target position to the assembly tray of the corresponding gear position.

2. The battery cell grading device according to claim 1, It is characterized in that The cache sliding mechanism also includes a support frame, and the support frame is perpendicular to the placement plane of the battery cell grading device; The multiple slides include a first slide group and a second slide group, the first slide group and the second slide group are both mounted on the support frame, the height of the second slide group relative to the placement plane is greater than the height of the first slide group relative to the placement plane, the multiple slides of the first slide group have the same height relative to the placement plane, the multiple slides of the second slide group have the same height relative to the placement plane, and the slide rail directions of the multiple slides of the first slide group and the second slide group are the same.

3. The battery cell grading device according to claim 2, It is characterized in that The vertical distance between the second slide group and the first slide group is greater than the length of the battery cell fixture perpendicular to the placement plane.

4. The battery cell grading device according to claim 2, It is characterized in that Each battery cell fixture in the first slide group has a different level of incoming battery cells in its buffer; each battery cell fixture in the second slide group has a different level of incoming battery cells in its buffer.

5. The battery cell grading device according to claim 4, It is characterized in that The incoming battery cells buffered by each battery cell fixture in the first slide group and the second slide group have different gears.

6. The battery cell grading device according to claim 1, It is characterized in that The battery cell jig comprises a jig bottom plate, a first jig end plate, a second jig end plate, a plurality of first limiting plates and a plurality of second limiting plates; The first end of the jig bottom plate is fixedly connected to the first jig end plate, and the second end of the jig bottom plate is fixedly connected to the second jig end plate; wherein the first end and the second end of the jig bottom plate are arranged opposite to each other; The multiple first limit plates are spaced apart on the first jig end plate, and the multiple second limit plates are spaced apart on the second jig end plate. Each first limit plate is directly opposite to a second limit plate, so that multiple cache positions are formed by multiple first limit plates, multiple second limit plates, the first jig end plate, the second end plate and the jig bottom plate.

7. The battery cell grading device according to claim 1, It is characterized in that A first sensor is provided on each cache position, and the first sensor is used to detect whether an incoming battery cell is cached on the corresponding cache position.

8. The battery cell grading device according to claim 1, It is characterized in that A second sensor is provided at the target position of each slide; The second sensor is used to send a transport start signal to the assembly tray transport mechanism when the battery cell jig reaches the target position.

9. The battery cell grading device according to claim 1, It is characterized in that The step-by-step transport mechanism and the tray assembly transport mechanism are both manipulators.

10. A battery cell grading system, It is characterized in that The battery cell grading system comprises the battery cell grading device described in any one of claims 1 to 9, a temporary storage mechanism for incoming battery cells, a code scanning device, and a plurality of assembly trays, each assembly tray corresponding to a different battery cell position; Wherein, the incoming battery cell temporary storage mechanism is used to store the incoming battery cells; The code scanning device is used to scan and identify the gear information of the incoming battery cells, and transmit the identified gear information of the incoming battery cells to the graded transport mechanism; The step-by-step transport mechanism is used to transport the incoming battery cells in the incoming battery cell temporary storage mechanism to the target cache position of the battery cell fixture corresponding to the gear position of the incoming battery cells according to the gear position information of the incoming battery cells; The cache sliding mechanism is used to control the cached battery fixture to slide from the current position of the slide table to the target position when the battery fixture is cached. The pallet assembly transport mechanism is used to transport multiple incoming battery cells on the battery fixture at the target position to the pallet assembly tray of the corresponding gear position, wherein different slides correspond to different target positions, and each target position is associated with the battery cell gear position cached by the corresponding battery fixture.

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