Restraint tray and formation equipment

Abstract

The utility model discloses a restraining tray and formation equipment, a partition plate assembly is arranged between a first end plate and a second end plate, the partition plate assembly comprises a plurality of partition plates, the plurality of partition plates are sequentially arranged in a first direction, and an accommodating space for accommodating a battery cell is defined between the adjacent partition plates; the first clamping jaw and the second clamping jaw are in sliding fit in the first direction, so that the partition plate assembly is suitable for being switched between the pressing and abutting position and the releasing position, and the first clamping jaw abuts against the second clamping jaw at the releasing position. Therefore, on one hand, the structure of the partition plate assembly can be simplified to reduce the cost of the restraining tray and realize the lightweight design of the restraining tray, and on the other hand, the interlocking of the adjacent partition plates at the release position can be realized, the movement stability between the adjacent partition plates can be improved, and the probability of clamping stagnation can be reduced; the stability and reliability of the partition plate assembly can be improved, and the use experience of the restraint tray is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a restraint tray and a formation device. Background Art

[0002] In the related art, batteries are widely used in the new energy field, such as: battery packs for electric vehicles, battery cells in energy storage systems, etc. The battery production process includes a formation step. Formation refers to the chemical and electrochemical reaction process in which a green plate is charged in an electrolyte to be in a charged state, impurities are removed, and the electrochemical activity of its active material is improved. In the formation step, a restraint tray is required to restrain the battery cells, which has a beneficial effect on the exhaust of the battery cells.

[0003] However, the structure of the existing restraint tray is relatively complex, especially the connection structure between adjacent partitions is relatively complex, resulting in high costs. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the utility model is to provide a restraint tray with a simple structure and low cost.

[0005] The present application further provides a formation device using the above restraint tray.

[0006] In a first aspect, the present application provides a restraint tray, including: a bracket and a partition assembly. The bracket has a first end plate and a second end plate opposite to each other in a first direction. The partition assembly is disposed between the first end plate and the second end plate. The partition assembly includes a plurality of partitions. The plurality of partitions are sequentially disposed in the first direction, and an accommodation space for accommodating a battery cell is defined between adjacent partitions. Wherein, the partition includes: a plate body, a first claw located on one side of the plate body in the first direction, and a second claw located on the other side of the plate body in the first direction. The first claw and the second claw are slidably engaged in the first direction so that the partition assembly is adapted to switch between a pressing position and a releasing position. In the releasing position, the first claw abuts against the second claw.

[0007] According to the restraint tray of the embodiment of the present application, adjacent partitions can be switched between a pressing position and a releasing position through the first claw and the second claw. On the one hand, the structure of the partition assembly can be simplified to reduce the cost of the restraint tray and achieve a lightweight design of the restraint tray. On the other hand, the adjacent partitions can be interlocked in the releasing position, the movement smoothness between adjacent partitions can be improved, the probability of jamming can be reduced, the stability and reliability of the partition assembly can be improved, and the use experience of the restraint tray can be improved.

[0008] According to some embodiments of the present application, the first jaw includes a first plate portion and a first claw portion. One end of the first plate portion is connected to the plate body, and the first claw portion is located at the other end of the first plate portion; the second jaw includes a second plate portion and a second claw portion. One end of the second plate portion is connected to the plate body, and the second claw portion is located at the other end of the second plate portion. The first plate portion and the second plate portion are arranged opposite to each other in a second direction perpendicular to the first direction. The first claw portion extends towards the accommodating space along the second direction, and the second claw portion extends away from the accommodating space along the second direction, so that the partition assembly is adapted to switch between a pressing position and a release position, and at the release position, the first jaw abuts against the second jaw.

[0009] In the above technical solution, when projected in the third direction, both the first jaw and the second jaw are configured in an L shape, and one is a regular L shape and the other is an inverted L shape, so that the first claw portion and the second claw portion are in abutting and limiting in the first direction at the release position. During the process of switching from the release position to the pressing position, the first plate portion and the second plate portion are opposite to each other in the second direction, and adjacent partitions can slide freely, so as to reduce the adjustment difficulty of the partition assembly.

[0010] According to some embodiments of the present application, the partition includes: an intermediate partition and end partitions. The first jaw and the second jaw are respectively arranged on both sides of the intermediate partition in the first direction. One end partition is provided with the first jaw, and the other end partition is provided with the second jaw.

[0011] In the above technical solution, an accommodating space is defined between adjacent partitions, and the end partitions located at the ends can be connected to the first end plate and the second end plate, or a pushing plate assembly is arranged between the first end plate and the end partition and between the second end plate and the end partition. Define the two end partitions as the first end partition and the second end partition respectively. The intermediate partition is located between the first end partition and the second end partition. The first end partition has the first jaw and cooperates with the second jaw on the intermediate partition, while the second end partition has the second jaw and cooperates with the first jaw on the intermediate partition, so that the pushing and pulling cooperation structure between multiple partitions in the partition assembly is simpler, the position adjustment difficulty is lower, and the adjustment accuracy is higher.

[0012] According to some embodiments of the present application, both the first jaw and the second jaw are arranged at both ends of the plate body in the second direction.

[0013] In the above technical solution, it can make the force consistency at both ends of the partition that can move along the first direction in the second direction better, so as to reduce the crosstalk when the partition moves along the first direction, reduce the movement offset of the partition, improve the movement smoothness of the partition, and improve the use stability and reliability of the partition assembly.

[0014] According to some embodiments of the present application, the partition assembly further includes: a connecting rod extending along a first direction, and a plurality of partitions are slidably disposed on the connecting rod, and two ends of the connecting rod are respectively connected to a first end plate and a second end plate.

[0015] In the above technical solution, the first end plate and the second end plate define a space for placing the partition assembly. The distance between the first end plate and the second end plate is fixed. The number of intermediate partitions can be reasonably set according to the thickness of the battery cell to adapt to the distance between the first end plate and the second end plate. Both ends of the connecting rod are respectively fixed to the first end plate and the second end plate, and the partition is slidably disposed on the connecting rod, which can reduce the difficulty of adjusting the position of the partition and the difficulty of using the restraint tray.

[0016] According to some embodiments of the present application, the battery cell is assembled to the partition along a third direction that is orthogonal to both the first direction and the second direction. A connecting portion is provided at one end of the plate body in the third direction, and the connecting portion is connected to the connecting rod.

[0017] In the above technical solution, the difficulty of disassembling the partition can be reduced, so as to reduce the difficulty of adjusting the number of partitions. The operation difficulty of adjusting the number of partitions based on the size of the battery cell is lower, and the use convenience is higher.

[0018] According to some embodiments of the present application, the connecting portion is configured as a hanging ear.

[0019] In the above technical solution, an arc-shaped notch may be formed on the lower side of the hanging ear, and the angle of the notch area is greater than or equal to 180°, and it is lapped with the connecting rod, so as to facilitate the lapping and assembly of the connecting portion and the connecting rod while taking into account the connection stability between the connecting portion and the connecting rod, and reducing the probability of the connecting portion and the connecting rod being disengaged.

[0020] According to some embodiments of the present application, a limiting buckle is further provided on the side wall of the body in the second direction. The limiting buckle is opposite to the connecting portion in the third direction and is adapted to cooperate with the connecting rod to realize anti-disengagement limit of the partition.

[0021] In the above technical solution, after the battery cell completes the formation operation, the battery cell needs to be taken out. The assembly direction of the battery cell is the same as the installation direction of the partition, both of which are installed from top to bottom. Correspondingly, taking out the battery cell is from bottom to top. In order to facilitate disassembly, the connecting portion and the connecting rod are configured as a lapping structure. During the process of taking out the battery cell, it is easy to cause the partition and the connecting rod to be disengaged, increasing the difficulty of taking out the battery cell. By setting the limiting buckle in the present application, the partition can be limited, so as to reduce the probability of the partition being taken out during the process of taking out the battery cell, improve the convenience of taking out the battery cell, and improve the use experience of the restraint tray.

[0022] According to some embodiments of the present application, a bearing platform is provided at one end of the plate body in the third direction, and the bearing platform is adapted to bear the battery cell.

[0023] In the above technical solution, by providing a carrier, on the one hand, the structural strength of the partition can be improved, and on the other hand, the placement stability and reliability of the battery cell on the partition can be improved.

[0024] According to some embodiments of the present application, an avoidance portion is provided on the carrier, and the avoidance portions of adjacent partitions are combined to form an avoidance through hole, and the avoidance through hole is adapted to avoid a lifting rod for lifting the battery cell.

[0025] In the above technical solution, each carrier includes a first portion and a second portion, and avoidance portions are provided on both the first portion and the second portion. The avoidance portion of the first portion on one partition and the avoidance portion of the second portion on another partition can be combined to form an avoidance through hole, and the avoidance through hole can avoid the lifting rod, realizing the avoidance of the lifting rod during the process of taking out the battery cell, so as to reduce the difficulty of taking out the battery cell from the restraint tray.

[0026] According to some embodiments of the present application, at least one of the two avoidance portions that form the avoidance through hole is configured as a C-shaped hole.

[0027] In the above technical solution, one of the avoidance portions is formed as a C-shaped hole, and the other avoidance portion is also a C-shaped hole or an arc-shaped hole, etc., so that the avoidance portion of the first portion, the avoidance portion of the second portion, and the blank area therebetween can be combined to form an oblong hole. The setting of the oblong hole can make the lifting rod more easily pass through the avoidance portion, reduce the probability of interference between the partition and the lifting rod, reduce the difficulty of taking out the battery cell, and improve the use convenience of the restraint tray.

[0028] According to some embodiments of the present application, a limiting portion is provided on one side of the plate body in the first direction, and the limiting portion is used to limit the battery cell.

[0029] In the above technical solution, the battery cell is placed on the carrier, and a limiting portion is provided on the plate body. The limiting portion can be located on the first side or the second side, and the limiting portions on multiple partitions are all located on the first side or all located on the second side. Through the setting of the limiting portion, the battery cell can be limited, the probability of the battery cell coming out is reduced, and the load-bearing stability of the battery cell is improved.

[0030] According to some embodiments of the present application, the limiting portion includes: a connecting plate and a limiting plate. One end of the connecting plate is connected to the plate body, and the limiting plate is connected to the other end of the connecting plate and extends toward the accommodating space to limit the battery cell.

[0031] In the above technical solution, the battery cell is limited in the second direction and the third direction respectively through the connecting plate and the limiting plate, so as to improve the stability and reliability of the battery cell in the accommodating space, improve the forming accuracy, and avoid damage to the battery cell during the pressing process, thereby improving the yield.

[0032] According to some embodiments of the present application, a guiding inclined surface is provided at one end of the connecting plate in the third direction.

[0033] In the above technical solution, the battery cell is assembled into the accommodating space from the top, and a guiding inclined surface is provided at the upper end (i.e., one end in the third direction) of the connecting plate. The two connecting plates opposite to each other in the second direction define a battery cell insertion hole. The battery cell can be assembled into the accommodating space through the battery cell insertion hole. Based on the setting of the guiding inclined surface, the battery cell insertion hole can be formed into a flared hole to realize the assembly guiding of the battery cell, reduce the assembly difficulty of the battery cell being assembled into the accommodating space, reduce the assembly difficulty, and improve the production efficiency.

[0034] According to some embodiments of the present application, buffer portions are provided on both sides of the plate body in the first direction.

[0035] In the above technical solution, the buffer portion can provide buffering for the battery cell during the process of restraining the battery cell, make the force distribution on the battery cell more uniform, improve the stress concentration during the battery cell restraining process, and reduce the probability of battery cell damage.

[0036] According to some embodiments of the present application, the buffer portion includes: a buffer pad and at least one layer of coating layer. The coating layer coats the buffer pad. The buffer pad is configured as a silicone material piece, and the coating layer is configured as a polyester film piece.

[0037] In the above technical solution, the coating layer can be configured to be symmetrically arranged about the center in the third direction, and the opening of the coating layer is located on the center line in the third direction, ensuring that there is no difference between the front installation and the reverse installation of the coating layer, and assembly anti-fooling can be realized. The buffer pad is configured as a silicone material piece, and the coating layer is configured as a polyester film piece, which can protect the buffer pad, reduce the probability of electrolyte infiltrating the buffer spacer, and reduce the probability of the buffer pad being corroded. Moreover, by sleeving multiple coating layers, the overall thickness of the buffer portion can be adjusted. That is, when the buffer pad undergoes plastic deformation and the thickness decreases, the size can be adjusted by the number of coating layers. At the same time, based on the material characteristics of the buffer pad and the setting of the coating layer, the action of oily substances on the surface of the battery cell can also be avoided, improving the processing quality of the battery cell.

[0038] According to some embodiments of the present application, the fixing surface of the plate body for fixing the buffer portion is configured as a concave surface, and a first installation portion arranged in an array is provided thereon. The buffer portion has a second installation portion that fits with the first installation portion in a concave-convex manner.

[0039] In the above technical solution, the fixed surface formed as a concave surface is connected to the buffer portion, which can achieve better assembly positioning and fixation of the buffer portion, improve the fixation stability and reliability of the buffer portion, and the concave-convex fitting connection between the first mounting portion and the second mounting portion can reduce the disassembly and assembly difficulty of the buffer portion, facilitating the replacement of the buffer portion. At the same time, both the first mounting portion and the second mounting portion can be arranged in an array along the second direction and the third direction, which can also improve the fixation stability and reliability of the buffer portion.

[0040] According to some embodiments of the present application, a plurality of weight-reducing portions are provided on the partition plate.

[0041] In the above technical solution, the weight-reducing portion can be configured as a hollowed-out portion, or the weight-reducing portion can be configured as an opening, so as to reduce the weight of the restraint tray through the weight-reducing portion, reduce the transfer difficulty, reduce the transfer cost, and improve the transfer safety.

[0042] It should be noted that providing the weight-reducing portion on the partition plate can, while achieving lightweight, also reduce the deformation amount during the processing of the partition plate and improve the structural reliability of the partition plate.

[0043] According to some embodiments of the present application, the restraint tray further includes: a push plate assembly, which is disposed on the bracket and is adapted to push against the end partition plate of the partition plate assembly at the end.

[0044] In a second aspect, the present application provides a formation device, including: the restraint tray in the above embodiments.

[0045] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0046] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0047] Figure 1 is a schematic diagram of the cooperation between the restraint tray and the battery cell according to an embodiment of the present application;

[0048] Figure 2 is another schematic diagram of the cooperation between the restraint tray and the battery cell according to an embodiment of the present application;

[0049] Figure 3 is a schematic diagram of the intermediate partition plate at one angle according to an embodiment of the present application;

[0050] Figure 4 is another schematic diagram of the intermediate partition plate at another angle according to an embodiment of the present application;

[0051] Figure 5Schematic diagram of a buffer pad according to an embodiment of the present application;

[0052] Figure 6 Schematic diagram of a coating layer according to an embodiment of the present application;

[0053] Figure 7 Schematic diagram of an end partition and a push plate assembly according to an embodiment of the present application;

[0054] Figure 8 Schematic diagram of a formation device according to an embodiment of the present application.

[0055] Reference numerals:

[0056] Formation device 1000,

[0057] Restraining tray 100, battery cell 200,

[0058] Bracket 10, bottom plate 11, first end plate 12, second end plate 13,

[0059] Partition assembly 20, partition 21, intermediate partition 21a, end partition 21b, plate body 211, connecting portion 2111, limiting buckle 2112, bearing platform 2113, avoiding portion 2114, first mounting portion 2115, first claw 212, first plate portion 2121, first claw portion 2122, second claw 213, second plate portion 2131, second claw portion 2132, limiting portion 214, connecting plate 2141, limiting plate 2142, guiding inclined surface 2143, buffer portion 215, buffer pad 2151, coating layer 2152, second mounting portion 2153, connecting rod 22,

[0060] Push plate assembly 30, adjusting assembly 40, weight reduction portion 50,

[0061] First direction X, second direction Y, third direction Z. Detailed implementation manners

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present application belong to the scope of protection of the present application.

[0063] Unless otherwise defined, all technical and scientific terms used in this application shall have the same meanings as commonly understood by those of ordinary skill in the technical field to which this application pertains; the terms used in the description of this application in the specification 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 description and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0064] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0065] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] The term "and / or" in this application is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0067] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, and other dimensions of various components shown in the drawings in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0068] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0069] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0070] In the description of the present utility model, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0071] The term "a plurality of" as used in this application refers to two or more (including two).

[0072] The battery cell includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate and a separator. The battery cell mainly works by the movement of metal ions between the positive electrode plate and the negative electrode plate. The separator is used to be arranged between the positive electrode plate and the negative electrode plate to insulate the positive electrode plate and the negative electrode plate and avoid short circuit.

[0073] The battery cell further includes a housing and an end cap. The housing has an opening, and the end cap covers the opening to form a closed space isolated from the external space. This closed space is used to accommodate the electrode assembly, the electrolyte and other functional components.

[0074] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only applied to energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely applied to electric transportation tools such as electric bicycles, electric motorcycles, electric vehicles, as well as multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand for them is also continuously increasing.

[0075] The battery production process includes a formation step. Formation refers to the chemical and electrochemical reaction process in which green plates are charged in the electrolyte to transform into a charged state, remove impurities, and improve the electrochemical activity of their active materials. With the rapid development of the lithium battery industry, the production efficiency requirements for battery cells are getting higher and higher, and the production cost needs to be significantly reduced, and the energy consumption requirements for battery cell production are getting lower and lower. Clamping and restraining the surface of the battery cell during the formation process will have a beneficial effect on the exhaust of the battery cell. Therefore, constrained formation is widely used in the production process of square lithium-ion battery cells.

[0076] The inventors have found through research that in the prior art, for the partition assembly on a conventional restraint tray, the connection structure between adjacent partitions is complex, the cost is relatively high, and it is prone to jamming, resulting in an increase in the difficulty of adjusting the position between adjacent partitions and a decrease in the usability of the restraint tray.

[0077] Based on this, the present application proposes a restraint tray, whose structure is simpler, the cost is lower, and the probability of jamming during the working process is lower, the working stability is higher, and the usability is higher.

[0078] The following refers to Figures 1 - 8 Describe the restraint tray 100 and the formation device 1000 according to the embodiments of the present invention.

[0079] As Figure 1 and Figure 2 shown, the restraint tray 100 according to the embodiment of the present application includes: a bracket 10 and a partition assembly 20. The bracket 10 has a first end plate 12 and a second end plate 13 opposite to each other in a first direction. The partition assembly 20 is disposed between the first end plate 12 and the second end plate 13. The partition assembly 20 includes a plurality of partitions 21. The plurality of partitions 21 are sequentially disposed in the first direction, and an accommodation space for accommodating the battery cell 200 is defined between adjacent partitions 21.

[0080] Among them, referring to Figure 3 and Figure 4 shown, the partition 21 includes: a plate body 211, a first claw 212 located on one side of the plate body 211 in the first direction, and a second claw 213 located on the other side of the plate body 211 in the first direction. The first claw 212 and the second claw 213 are slidably engaged with each other in the first direction, so that the partition assembly 20 is adapted to switch between a pressing position and a release position. In the release position, the first claw 212 abuts against the second claw 213.

[0081] Specifically, the bracket 10 may include a bottom plate 11, a first end plate 12, and a second end plate 13. The first end plate 12 and the second end plate 13 are disposed at two ends of the bottom plate 11 in the first direction. The partition assembly 20 is disposed between the first end plate 12 and the second end plate 13, and accommodation spaces are formed between adjacent partitions 21. A battery cell 200 may be disposed in each accommodation space. The positions of adjacent partitions 21 are adjustable, so that the partition assembly 20 can be switched between a pressing position and a releasing position. In the pressing position, the gap between adjacent partitions 21 is smaller than the dimension of the battery cell 200 in the first direction to achieve restraint of the battery cell 200, thereby achieving constrained formation. In the releasing position, the gap between adjacent partitions 21 is larger than the dimension of the battery cell 200 in the first direction to facilitate installation of the battery cell 200 into the accommodation space and removal of the battery cell 200 from the accommodation space, improving the usability of the constrained tray 100.

[0082] Furthermore, in order to achieve sliding fit between adjacent partitions 21 in the first direction and to achieve limiting cooperation between adjacent partitions 21 when the partition assembly 20 is in the releasing position, the present application further provides a first claw 212 and a second claw 213. The first claw 212 and the second claw 213 can be slidably fitted in the first direction to achieve switching between the pressing position and the releasing position. In the releasing position, the first claw 212 and the second claw 213 can be abutted in the first direction to prevent the adjacent partitions 21 from being disengaged.

[0083] It can be understood that a push plate assembly 30 may be disposed between the first end plate 12 and the partition assembly 20. The push plate assembly 30 may be disposed on the bracket 10, such as on the first end plate 12 or on the second end plate 13, so that a plurality of partitions 21 can move under the action of thrust, move in a face-to-face fit manner, and sequentially move to the pressing position. The plurality of partitions 21 can also be switched to the releasing position under the action of pulling force. During the process of switching to the releasing position, through the abutting action of the first claw 212 and the second claw 213, the plurality of partitions 21 sequentially move to the releasing position, that is, the linkage of the plurality of partitions 21 is realized through the first claw 212 and the second claw 213, without further providing a linkage structure such as a connecting rod, which can simplify the structure of the partition assembly 20, reduce costs, and after moving to the releasing position, the abutting fit of the first claw 212 and the second claw 213 can achieve limiting to prevent the partition 21 from being disengaged, improving the stability and reliability of the partition assembly 20.

[0084] According to the restraint tray 100 of the embodiment of the present application, adjacent partition plates 21 can be switched between the pressing position and the releasing position through the first claw 212 and the second claw 213. On the one hand, the structure of the partition plate assembly 20 can be simplified to reduce the cost of the restraint tray 100 and achieve the lightweight design of the restraint tray 100. On the other hand, the adjacent partition plates 21 can be interlocked in the releasing position, the movement smoothness between the adjacent partition plates 21 can be improved, the probability of jamming can be reduced, the stability and reliability of the partition plate assembly 20 can be improved, and the use experience of the restraint tray 100 can be improved.

[0085] It should be noted that in the embodiment of the present application, the first direction can be the length direction, that is, the X direction shown in the figure, the second direction can be the width direction, that is, the Y direction shown in the figure, and the third direction can be the height direction, the up and down direction, that is, the Z direction shown in the figure.

[0086] See Figure 3 and Figure 4 As shown, the first claw 212 includes a first plate portion 2121 and a first claw portion 2122. One end of the first plate portion 2121 is connected to the plate body 211, and the first claw portion 2122 is located at the other end of the first plate portion 2121; the second claw 213 includes a second plate portion 2131 and a second claw portion 2132. One end of the second plate portion 2131 is connected to the plate body 211, and the second claw portion 2132 is located at the other end of the second plate portion 2131. The first plate portion 2121 and the second plate portion 2131 are oppositely arranged in the second direction perpendicular to the first direction. The first claw portion 2122 extends toward the accommodation space in the second direction, and the second claw portion 2132 extends away from the accommodation space in the second direction, so that the partition plate assembly 20 is adapted to be switched between the pressing position and the releasing position, and in the releasing position, the first claw 212 abuts against the second claw 213.

[0087] Specifically, in the projection in the third direction, both the first claw 212 and the second claw 213 are configured as L-shaped, and one is a positive L-shaped and the other is an inverted L-shaped, so that the first claw portion 2122 and the second claw portion 2132 are in abutting limit in the first direction in the releasing position, and in the process of switching from the releasing position to the pressing position, the first plate portion 2121 and the second plate portion 2131 are opposite in the second direction, and the adjacent partition plates 21 can slide freely to achieve the above technical effects.

[0088] Of course, limiting plate portions 2142 can also be provided at both ends of the first plate portion 2121 and the second plate portion 2131 in the third direction, that is, the upper end and the lower end. The limiting plate portions 2142 can achieve the limit in the third direction, thereby reducing the crosstalk when the adjacent partition plates 21 move relatively in the first direction and improving the movement smoothness and reliability of the partition plate assembly 20.

[0089] Combined withFigure 2 , Figure 3 , Figure 4 , Figure 7 As shown in Figure 4 , Figure 7 , the partition 21 includes an intermediate partition 21a and end partitions 21b. The intermediate partition 21a is respectively provided with a first claw 212 and a second claw 213 on both sides in the first direction. One end partition 21b is provided with the first claw 212, and the other end partition 21b is provided with the second claw 213.

[0090] That is to say, an accommodation space is defined between adjacent partitions 21, and the end partitions 21b at the ends can be connected to the first end plate 12 and the second end plate 13, or a push plate assembly 30 is provided between the first end plate 12 and the end partition 21b and between the second end plate 13 and the end partition 21b. Define the two end partitions 21b as a first end partition 21b and a second end partition 21b respectively. The intermediate partition 21a is located between the first end partition 21b and the second end partition 21b. The first end partition 21b has the first claw 212 and cooperates with the second claw 213 on the intermediate partition 21a, while the second end partition 21b has the second claw 213 and cooperates with the first claw 212 on the intermediate partition 21a, so that the push-pull cooperation structure between multiple partitions 21 in the partition assembly 20 is simpler, the difficulty of position adjustment is lower, and the adjustment accuracy is higher.

[0091] Among them, the number of intermediate partitions 21a can be multiple. Based on the different sizes of the battery cells 200, the number of intermediate partitions 21a can be reasonably set, and the gap can be adjusted by providing a spacer between the first end plate 12 and the end partition 21b or between the second end plate 13 and the end partition 21b, so as to improve the adaptability of the restraint tray 100 and adapt to the formation processing of battery cells 200 of various sizes.

[0092] It can be understood that both the first claw 212 and the second claw 213 are provided at both ends of the plate body 211 in the second direction.

[0093] Specifically, define the two sides of the plate body 211 in the first direction as the first side and the second side respectively. The first side can be provided with the first claw 212, and the corresponding second side can be provided with the second claw 213. Both ends of the plate body 211 in the second direction are provided with the first claw 212 and the second claw 213, that is, the first claws 212 are provided in pairs and are located at both ends of the plate body 211 in the second direction, and the second claws 213 are provided in pairs and are also located at both ends of the plate body 211 in the second direction.

[0094] In this way, the force consistency at both ends of the partition 21 that can move in the first direction in the second direction can be better, so as to reduce the crosstalk of the partition 21 when moving in the first direction, reduce the movement offset of the partition 21, improve the movement stability of the partition 21, and improve the use stability and reliability of the partition assembly 20.

[0095] Combined with Figure 1 and Figure 2 As shown, the partition assembly 20 further includes: a connecting rod 22, the connecting rod 22 extends in the first direction, and a plurality of partitions 21 are slidably arranged on the connecting rod 22, and both ends of the connecting rod 22 are respectively connected to the first end plate 12 and the second end plate 13.

[0096] Specifically, the partition assembly 20 includes a connecting rod 22. Each group of partition assemblies 20 can be provided with four connecting rods 22. Threaded sections are provided at both ends of the connecting rod 22. The first end plate 12 is located at one end of the connecting rod 22 and is threadedly fastened to the connecting rod 22. The second end plate 13 is located at the other end of the connecting rod 22 and is threadedly fastened to the connecting rod 22.

[0097] Thus, the first end plate 12 and the second end plate 13 define a space for placing the partition assembly 20. The distance between the first end plate 12 and the second end plate 13 is fixed. The number of intermediate partitions 21a can be reasonably set according to the thickness of the battery cell 200 to adapt to the distance between the first end plate 12 and the second end plate 13. Both ends of the connecting rod 22 are respectively fixed to the first end plate 12 and the second end plate 13. The partition 21 is slidably arranged on the connecting rod 22, which can reduce the difficulty of position adjustment of the partition 21 and the use difficulty of the restraint tray 100.

[0098] Combined with Figure 2 、 Figure 3 、 Figure 4 As shown, the battery cell 200 is assembled to the partition 21 in a third direction that is orthogonal to both the first direction and the second direction. A connecting portion 2111 is provided at one end of the plate body 211 in the third direction, and the connecting portion 2111 is connected to the connecting rod 22.

[0099] That is to say, the connecting portion 2111 is arranged at the upper end of the plate body 211, and the partition 21 can be assembled to the connecting rod 22 from the upper end. The battery cell 200 can be assembled to the accommodating space from the upper end, and the connecting portion 2111 can overlap with the connecting rod 22, and further can realize the movement guiding cooperation in the first direction.

[0100] In this way, the disassembly difficulty of the partition 21 can be reduced, so as to reduce the difficulty of adjusting the number of partitions 21. The operation difficulty of adjusting the number of partitions 21 based on the size of the battery cell 200 is lower, and the use convenience is higher.

[0101] In some embodiments, the connecting portion 2111 is configured as a hanging ear.

[0102] Specifically, an arc-shaped notch may be formed on the lower side of the ear hook, and the angle of the notch area is greater than or equal to 180°, and it is lapped and matched with the connecting rod 22, so as to facilitate the lapping and assembly of the connecting portion 2111 and the connecting rod 22 while taking into account the connection stability between the connecting portion 2111 and the connecting rod 22, and reducing the probability of the connecting portion 2111 and the connecting rod 22 being disengaged from the cooperation.

[0103] As Figure 4 shown, a limiting buckle 2112 is further provided on the side wall of the plate body 211 in the second direction. The limiting buckle 2112 is opposite to the connecting portion 2111 in the third direction and is adapted to cooperate with the connecting rod 22 to realize the anti-disengagement limit of the partition plate 21.

[0104] Specifically, the limiting buckle 2112 includes a plate body and a buckle body at the end. The plate body is spaced apart from the plate body 211 in the second direction, and one end of the plate body in the third direction is connected to the plate body 211, and the other end is provided with a buckle body, so that the limiting buckle 2112 is elastically connected to the plate body 211. After the connecting portion 2111 is connected to the connecting rod 22, the limiting buckle 2112 can push against the connecting rod 22 on the outer peripheral surface of the connecting rod 22 to realize the connection limit of the connecting rod 22 and the connecting portion 2111.

[0105] It can be understood that after the battery cell 200 completes the formation operation, the battery cell 200 needs to be taken out. The assembly direction of the battery cell 200 is the same as the installation direction of the partition plate 21, both of which are installed from top to bottom. Correspondingly, taking out the battery cell 200 is from bottom to top. In order to facilitate disassembly, the connecting portion 2111 and the connecting rod 22 are constructed as a lapping structure. During the process of taking out the battery cell 200, it is easy to cause the partition plate 21 and the connecting rod 22 to be disengaged from the cooperation, increasing the difficulty of taking out the battery cell 200. By providing the limiting buckle 2112 in this application, the limit of the partition plate 21 can be realized, so as to reduce the probability of the partition plate 21 being taken out during the process of taking out the battery cell 200, improve the convenience of taking out the battery cell 200, and improve the use experience of the restraint tray 100.

[0106] As Figure 3 、 Figure 4 and Figure 7 shown, a bearing platform 2113 is provided at one end of the plate body 211 in the third direction, and the bearing platform 2113 is adapted to bear the battery cell 200.

[0107] Specifically, the bearing platform 2113 is arranged at the lower end of the board body 211. The bearing platform 2113 is generally square in shape to carry the battery cell 200 through the square bearing platform 2113. The bearing platform 2113 of each partition 21 includes a first part located on the first side and a second part located on the second side. The first part of one partition 21 and the second part of another partition 21 can be combined in the front-back direction (i.e., the first direction) to form a complete platform for placing the battery cell 200.

[0108] In this way, by setting the bearing platform 2113, on the one hand, the structural strength of the partition 21 can be improved, and on the other hand, the placement stability and reliability of the battery cell 200 on the partition 21 can be improved.

[0109] It should be noted that the bearing platform 2113 protrudes from the surface of the board body in the first direction and the second direction, and the protruding dimension is smaller than the protruding dimensions of the first claw 212 and the second claw 213.

[0110] Such as Figure 3 and Figure 4 As shown, an avoidance portion 2114 is provided on the bearing platform 2113. The avoidance portions 2114 of adjacent partitions 21 are combined to form an avoidance through-hole, and the avoidance through-hole is adapted to avoid the lifting rod for lifting the battery cell 200.

[0111] That is to say, each bearing platform 2113 includes a first part and a second part. Avoidance portions 2114 are provided on both the first part and the second part. The avoidance portion 2114 of the first part on one partition 21 and the avoidance portion 2114 of the second part on another partition 21 can be combined to form an avoidance through-hole, and the avoidance through-hole can avoid the lifting rod, realizing the avoidance of the lifting rod during the process of taking out the battery cell 200, so as to reduce the difficulty of taking out the battery cell 200 from the restraint tray 100.

[0112] Furthermore, at least one of the two avoidance portions 2114 that form the avoidance through-hole is configured as a C-shaped hole.

[0113] Specifically, one of the avoidance portions 2114 is formed as a C-shaped hole, and the other avoidance portion 2114 is also a C-shaped hole or an arc-shaped hole, etc., so that the avoidance portion 2114 of the first part, the avoidance portion 2114 of the second part, and the blank area therebetween can be combined to form an oblong hole. The setting of the oblong hole can make the lifting rod more easily pass through the avoidance portion 2114, reduce the probability of interference between the partition 21 and the lifting rod, reduce the difficulty of taking out the battery cell 200, and improve the use convenience of the restraint tray 100.

[0114] Such as Figure 4 As shown, a limiting portion 214 is provided on one side of the board body 211 in the first direction, and the limiting portion 214 is used to limit the battery cell 200.

[0115] Specifically, the battery cell 200 is placed on the carrier 2113, and the limiting portion 214 is provided on the plate body 211. The limiting portion 214 can be located on the first side or the second side. The limiting portions 214 on the plurality of partition plates 21 are all located on the first side or all located on the second side. By providing the limiting portion 214, the limiting of the battery cell 200 can be achieved, the probability of the battery cell 200 coming out can be reduced, and the load-bearing stability of the battery cell 200 can be improved.

[0116] It should be noted that when the partition plate 21 is in the release position, the gap between adjacent partition plates 21 is greater than the size of the battery cell 200 in the first direction. At this time, after the battery cell 200 is placed in the accommodation space, the limiting portion 214 can limit the battery cell 200.

[0117] See Figure 4 and Figure 7 As shown in, the limiting portion 214 includes: a connecting plate 2141 and a limiting plate 2142. One end of the connecting plate 2141 is connected to the plate body 211, and the limiting plate 2142 is connected to the other end of the connecting plate 2141 and extends toward the accommodation space for limiting the battery cell 200.

[0118] That is to say, the projection profile of the limiting portion 214 in the third direction is L-shaped, and the plate body 211 can limit the battery cell 200 in the second direction. The limiting plate 2142 and the plate body 211 are oppositely arranged in the first direction, and the limiting of the battery cell 200 in the first direction can be achieved.

[0119] In this way, the limiting of the battery cell 200 in the second direction and the third direction is respectively achieved through the connecting plate 2141 and the limiting plate 2142, so as to improve the stability and reliability of the battery cell 200 in the accommodation space, improve the formation accuracy, avoid damage to the battery cell 200 during the pressing process, and improve the yield.

[0120] It can be understood that a guiding inclined surface 2143 is provided at one end of the connecting plate 2141 in the third direction.

[0121] Among them, the battery cell 200 is assembled into the accommodation space from the top end, and a guiding inclined surface 2143 is provided at the upper end (i.e., one end in the third direction) of the connecting plate 2141. The two connecting plates 2141 opposite to each other in the second direction define an inlet hole for the battery cell 200. The battery cell 200 can be assembled into the accommodation space through the inlet hole for the battery cell 200. Based on the setting of the guiding inclined surface 2143, the inlet hole for the battery cell 200 can be formed into a flared hole to achieve the assembly guiding of the battery cell 200, reduce the assembly difficulty of the battery cell 200 being assembled into the accommodation space, reduce the assembly difficulty, and improve the production efficiency.

[0122] Such as Figure 5 andFigure 7 As shown, buffer portions 215 are provided on both sides of the plate body 211 in the first direction.

[0123] Specifically, the buffer portions 215 can provide buffering for the battery cell 200 during the process of restraining the battery cell 200, making the force distribution on the battery cell 200 more uniform, improving the stress concentration during the restraining process of the battery cell 200, so as to reduce the probability of damage to the battery cell 200.

[0124] It should be noted that the upper end of the buffer portion 215 can be constructed as an inclined surface structure, which can also realize the assembly guidance for the battery cell 200.

[0125] As Figure 5 and Figure 6 shown, the buffer portion 215 includes: a buffer pad 2151 and at least one layer of coating layer 2152. The coating layer 2152 is coated on the buffer pad 2151. The buffer pad 2151 is constructed as a silicone material part, and the coating layer 2152 is constructed as a polyester film part.

[0126] Specifically, the coating layer 2152 can be constructed to be symmetrically arranged about the center in the third direction, and the opening of the coating layer 2152 is located on the center line in the third direction, ensuring that there is no difference between the front installation and the reverse installation of the coating layer 2152, and assembly anti-fooling can be realized. The buffer pad 2151 is constructed as a silicone material part, and the coating layer 2152 is constructed as a polyester film part, which can protect the buffer pad 2151, reduce the probability of electrolyte infiltrating the buffer spacer, so as to reduce the probability of the buffer pad 2151 being corroded, and the overall thickness of the buffer portion 215 can be adjusted by sleeving multiple coating layers 2152. That is, when the buffer pad 2151 undergoes plastic deformation and the thickness decreases, the size adjustment can be achieved through the number of coating layers 2152. At the same time, based on the material characteristics of the buffer pad 2151, the setting of the coating layer 2152 can also prevent oily substances from acting on the surface of the battery cell 200 and improve the processing quality of the battery cell 200.

[0127] It can be understood that both the push plate assembly 30 and the adjustment assembly 40 are adapted to push against the end partition 21b on one side of the partition assembly 20 to press against the battery cell 200, press the battery cell 200 into a constrained state between the partitions 21, and then perform formation. During the pressing process, the buffer pad 2151 will deform. Long-term pressing and frequent use will cause plastic deformation and wear of the buffer pad 2151.

[0128] Furthermore, the fixed surface of the plate body 211 for fixing the buffer portion 215 is constructed as a concave surface, and first mounting portions 2115 arranged in an array are provided thereon. The buffer portion 215 has second mounting portions 2153 that are engaged with the first mounting portions 2115 in a concave-convex manner.

[0129] Specifically, the fixed surface formed as a concave surface is connected to the buffer portion 215, which can achieve better assembly positioning and fixation of the buffer portion 215, improve the fixation stability and reliability of the buffer portion 215. The concave-convex fitting connection between the first mounting portion 2115 and the second mounting portion 2153 can reduce the disassembly and assembly difficulty of the buffer portion 215, facilitating the replacement of the buffer portion 215. At the same time, both the first mounting portion 2115 and the second mounting portion 2153 can be arranged in an array along the second direction and the third direction, which can also improve the fixation stability and reliability of the buffer portion 215.

[0130] It should be noted that a square through-hole is also provided on the plate body 211. The square through-hole can be used to avoid the limiting plate 2142 of the limiting portion 214, so as to prevent interference between the limiting portion 214 on one partition plate 21 and the plate body 211 of another partition plate 21 under the pressing position, thereby improving the restraint stability and reliability.

[0131] See Figure 2 As described above, according to some embodiments of the present application, a plurality of weight-reducing portions 50 are provided on the partition assembly 20.

[0132] Specifically, the weight-reducing portion 50 can be configured as a hollow portion, or the weight-reducing portion 50 can also be configured as an opening, so as to reduce the weight of the restraint tray 100 through the weight-reducing portion 50, reduce the transfer difficulty, reduce the transfer cost, and improve the transfer safety.

[0133] It should be noted that by providing the weight-reducing portion 50 on the partition plate 21, while achieving lightweight, it can also reduce the deformation amount during the processing of the partition plate 21 and improve the structural reliability of the partition plate 21.

[0134] As Figure 8 shown, the present application provides a forming device 1000, including: the restraint tray 100 in the above embodiments.

[0135] The other components and operations of the restraint tray 100 and the forming device 1000 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0136] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0137] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A restraint tray (100), characterized in that, Comprising: A bracket (10) having a first end plate (12) and a second end plate (13) opposite to each other in a first direction; A partition assembly (20) disposed between the first end plate (12) and the second end plate (13), the partition assembly (20) including a plurality of partitions (21) arranged in sequence in the first direction, and accommodation spaces for accommodating battery cells (200) defined between adjacent partitions (21); Wherein The partition (21) includes: a plate body (211), a first claw (212) located on one side of the plate body (211) in the first direction, and a second claw (213) located on the other side of the plate body (211) in the first direction, the first claw (212) and the second claw (213) being slidably engaged in the first direction so that the partition assembly (20) is adapted to switch between a pressing position and a release position, and at the release position, the first claw (212) abuts against the second claw (213).

2. The restraint tray (100) according to claim 1, characterized in that, The first claw (212) includes a first plate portion (2121) and a first claw portion (2122), one end of the first plate portion (2121) being connected to the plate body (211), and the first claw portion (2122) being located at the other end of the first plate portion (2121); the second claw (213) includes a second plate portion (2131) and a second claw portion (2132), one end of the second plate portion (2131) being connected to the plate body (211), and the second claw portion (2132) being located at the other end of the second plate portion (2131), the first plate portion (2121) and the second plate portion (2131) being oppositely arranged in a second direction perpendicular to the first direction, the first claw portion (2122) extending towards the accommodation space in the second direction, and the second claw portion (2132) extending away from the accommodation space in the second direction, so that the partition assembly (20) is adapted to switch between a pressing position and a release position, and at the release position, the first claw (212) abuts against the second claw (213).

3. The restraint tray (100) according to claim 2, wherein, The partition (21) includes: an intermediate partition (21a) and end partitions (21b), the first claw (212) and the second claw (213) being respectively disposed on both sides of the intermediate partition (21a) in the first direction, one end partition (21b) being provided with the first claw (212), and the other end partition (21b) being provided with the second claw (213).

4. The restraint tray (100) according to claim 2, characterized in that, The first claw (212) and the second claw (213) are both disposed at both ends of the plate body (211) in the second direction.

5. The restraint tray (100) according to claim 1, characterized in that, The partition assembly (20) further includes: a connecting rod (22) extending along the first direction, and a plurality of the partitions (21) are slidably disposed on the connecting rod (22), and two ends of the connecting rod (22) are respectively connected to the first end plate (12) and the second end plate (13).

6. The restraint tray (100) according to claim 5, characterized in that, The battery cell (200) is assembled to the partition (21) along a third direction orthogonal to both the first direction and the second direction. A connecting portion (2111) is provided at one end of the plate body (211) in the third direction, and the connecting portion (2111) is connected to the connecting rod (22).

7. The restraint tray (100) according to claim 6, characterized in that, The connecting portion (2111) is configured as a hanging ear.

8. The restraint tray (100) according to claim 6, characterized in that, A limiting buckle (2112) is further provided on a side wall of the plate body (211) in the second direction. The limiting buckle (2112) is opposite to the connecting portion (2111) in the third direction and is adapted to cooperate with the connecting rod (22) to realize anti-disengagement limiting of the partition (21).

9. The restraint tray (100) according to claim 6, characterized in that, A bearing platform (2113) is provided at one end of the plate body (211) in the third direction, and the bearing platform (2) is adapted to bear the battery cell (200).

10. The restraint tray (100) according to claim 9, characterized in that, An avoidance portion (2114) is provided on the bearing platform (2113). The avoidance portions (2114) of adjacent partitions (21) are combined to form an avoidance through hole, and the avoidance through hole is adapted to avoid a lifting rod for lifting the battery cell (200).

11. The restraint tray (100) according to claim 10, characterized in that, At least one of the two avoidance portions (2114) that form the avoidance through hole is configured as a C-shaped hole.

12. In the restraint tray (100) according to claim 6, characterized in that, A limiting portion (214) is provided on one side of the plate body (211) in the first direction, and the limiting portion (214) is used for limiting the battery cell (200).

13. The restraint tray (100) according to claim 12, characterized in that, The limiting portion (214) includes: a connecting plate (2141) and a limiting plate (2142). One end of the connecting plate (2141) is connected to the plate body (211), and the limiting plate (2142) is connected to the other end of the connecting plate (2141) and extends toward the accommodation space to limit the battery cell (200).

14. In the restraint tray (100) according to claim 13, characterized in that, A guiding inclined surface (2143) is provided at one end of the connecting plate (2141) in the third direction.

15. The restraint tray (100) according to claim 1, characterized in that, Buffer portions (215) are provided on both sides of the plate body (211) in the first direction.

16. The restraint tray (100) according to claim 15, wherein, The buffer portion (215) includes: a buffer pad (2151) and at least one layer of coating layer (2152). The coating layer (2152) coats the buffer pad (2151). The buffer pad (2151) is configured as a silicone material part, and the coating layer (2152) is configured as a polyester film part.

17. The restraint tray (100) according to claim 15, characterized in that, A fixing surface of the plate body (211) for fixing the buffer portion (215) is configured as a concave surface, and first mounting portions (2115) arranged in an array are provided thereon. The buffer portion (215) has second mounting portions (2153) that are in concave-convex fit with the first mounting portions (2115).

18. The restraint tray (100) according to claim 1, characterized in that, A plurality of weight-reducing portions (50) are provided on the partition (21).

19. The restraint tray (100) according to claim 1, wherein, Further included: A push plate assembly (30), the push plate assembly (30) is disposed on the bracket (10) and is adapted to push against the end partition plate (21b) of the partition plate assembly (20) at the end.

20. A formation device (1000), characterized in that, Comprising: The restraint tray (100) according to any one of claims 1-19.

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