Tray and battery restraining device

Abstract

The invention discloses a tray and a battery restraining device, the tray is used for bearing single batteries, the tray comprises an outer fixing frame and a plurality of supporting beams, and a mounting space is formed on the inner side of the outer fixing frame; the multiple supporting beams are arranged in the mounting space, the multiple supporting beams are arranged in the first direction, and the multiple supporting beams are connected with the outer fixing frame; the at least two supporting beams are arranged at intervals; and the plurality of supporting beams are used for bearing the battery monomers. According to the technical scheme, the tray is lighter.

Description

Tray and battery restraint device Technical Field

[0001] The present application relates to the field of battery processing equipment, and in particular to a tray and a battery restraint device. Background Art

[0002] During battery testing, the batteries need to be mounted on a restraint tray with a tray, which supports the weight of the batteries. Because the restraint tray needs to support the weight of the battery cells, it is usually configured as a monolithic plate-like structure, making the overall weight of the tray product very heavy.

[0003] Summary of the Invention

[0004] The main purpose of this application is to propose a pallet, aiming to solve the problem that the existing pallet structure is very bulky.

[0005] To achieve the above objectives, the present application proposes a tray for carrying battery cells, the tray comprising:

[0006] an external fixator, wherein an installation space is formed inside the external fixator; and

[0007] A plurality of support beams are provided in the installation space, the plurality of support beams are arranged along a first direction, and the plurality of support beams are respectively connected to the external fixing frame; at least two of the support beams are arranged at intervals; and the plurality of support beams are used to carry the battery cells.

[0008] In this example, a load-bearing part is formed by arranging multiple support beams in the installation space formed by the external fixing frame, and the battery cells are supported by the load-bearing part to keep the battery cells in a preset position; by adopting multiple support beams arranged along the first direction and at least two of the support beams being arranged at intervals, the weight of the load-bearing part can be reduced, thereby reducing the overall weight of the pallet, making the pallet lighter.

[0009] In some examples, the external fixator and / or the support beam are hollow tubular structures;

[0010] And / or, the external fixator and / or the support beam are made of carbon fiber material.

[0011] By adopting a hollow tubular external fixator and / or support beam, the overall weight of the pallet can be reduced; by using carbon fiber material to make the external fixator and / or support beam, the structural strength of the external fixator and / or support beam can be improved, and the corrosion resistance of the carbon fiber material can be utilized to improve the overall quality of the pallet.

[0012] In some examples, one of the support beam and the external fixator is provided with a first boss, and the other is recessed with a first slot; the first boss is inserted into the first slot to connect the support beam to the external fixator.

[0013] By adopting the mutual plug-in cooperation of the first boss and the first slot, the support beam and the external fixing frame can be quickly assembled, thereby improving the installation performance of the tray.

[0014] In some examples, the first boss is further adhesively connected to the first slot;

[0015] And / or, the external fixator is provided with the first boss, and the first boss is adhesively connected to the external fixator.

[0016] By bonding the first boss to the first slot, it is possible to prevent the support beam from shaking relative to the external fixing frame, thereby preventing the structure from loosening and causing operating noise.

[0017] By bonding the first boss and the external fixator together, the first boss can be quickly installed and fixed, reducing direct destructive processing on the external fixator, thereby improving the structural strength of the external fixator.

[0018] In some examples, the tray further comprises:

[0019] A first reinforcement member, through which at least one of the support beams is connected to the external fixation frame.

[0020] In this example, at least one support beam is connected to the external fixation frame via a first reinforcement member to improve the deformation resistance of the support beam, thereby preventing the support beam from being deformed or dislocated when bearing load.

[0021] In some examples, there are multiple first reinforcement members, and the multiple first reinforcement members are spaced apart along a second direction, and the second direction intersects the first direction.

[0022] In this example, the multiple first reinforcement members spaced apart along the second direction can support and fix the support beam along the second direction, so as to improve the overall strength of the support beam and enhance its anti-deformation performance.

[0023] In some examples, the first reinforcement member and the external fixator are plug-connected and / or adhesively connected.

[0024] Since the reinforcement member and the external fixator are plug-connected and / or bonded, the first reinforcement member can be easily fixed, so that the first reinforcement member and the external fixator can be separately formed as needed and then assembled, thereby facilitating the forming and processing of a single structure.

[0025] In some examples, the support beam is plug-connected and / or adhesively connected to the first reinforcement.

[0026] Since the first support beam is mounted on the external fixing frame, in this example the first reinforcement is fixed to the support beam by plugging or bonding, so that the support beam and the first reinforcement can be formed separately, thereby facilitating rapid prototyping of each component.

[0027] In some examples, the tray further comprises:

[0028] A second reinforcement member is provided, and adjacent support beams are connected to each other via the second reinforcement member.

[0029] In this example, the second reinforcement is used to connect adjacent support beams to each other so that the adjacent support beams form an integral structure, thereby improving the overall strength of the multiple support beams, so that the overall deformation resistance of the multiple support beams is higher, and preventing the support beams from deformation or displacement.

[0030] In some examples, the second reinforcement is plug-connected and / or adhesively connected to the support beam.

[0031] In this example, by plugging and / or bonding the second reinforcement and the support beam together, the second reinforcement and the support beam can be easily formed separately and then installed, thereby improving the installation performance of multiple components.

[0032] In some examples, the support beam has a lower surface, and the lower surface of the support beam is planar;

[0033] And / or, at least two of the support beams are arranged in parallel.

[0034] By setting the lower surface of the support beam as a plane, the support structure can be attached to the lower surface of the support beam when the pallet is moved to prevent the pallet from shifting; by setting at least two support beams parallel to each other, when the pallet is moved, two parallel support structures can be used to cooperate with the two parallel support beams on the pallet, thereby improving the stability of the pallet.

[0035] In some examples, a pin hole is formed on the external fixator.

[0036] The pin holes in this example can be used to cooperate with external structures so that when the pallet is installed on other structures, it can cooperate with other structures to prevent the pallet from shifting and facilitate the fixation or stacking of the pallet.

[0037] In some examples, the tray further comprises:

[0038] The limiting component is installed in the external fixing frame, and the limiting component is provided with the pin hole; and a through hole is provided on the external fixing frame at a position corresponding to the pin hole.

[0039] The limiting assembly in this example is used to form a pin hole; by installing the limiting assembly inside the external fixator, the limiting assembly can be conveniently limited so that the limiting assembly can be maintained in a preset position, while avoiding the limiting assembly occupying the external space of the external fixator, so as to facilitate the external fixator to be stacked as a whole.

[0040] In some examples, the limiting assembly includes:

[0041] a fixing block, fixedly installed in the external fixing frame; and

[0042] The pin sleeve is fixedly mounted on the fixing block, and the pin sleeve is provided with the pin hole.

[0043] The fixing block in this example is used to connect and fix with the external fixing frame, and the pin sleeve is used to form a pin hole. Since the pin sleeve is fixedly connected to the fixing block, a pin hole can be formed on the external fixing frame to facilitate the placement of the tray.

[0044] In some examples, the fixing block is provided with a first limiting hole and a second limiting hole communicating with the first limiting hole at a position corresponding to the through hole, and the second limiting hole is located between the first limiting hole and the through hole; the inner diameter of the first limiting hole is larger than the inner diameter of the second limiting hole;

[0045] A limiting boss is protruded on the outer wall of the pin sleeve, and the maximum outer diameter of the limiting boss is larger than the inner diameter of the second limiting hole; the limiting boss is inserted into the first limiting hole, and the pin sleeve is inserted into the second limiting hole.

[0046] In this example, the first limiting hole and the second limiting hole are connected to each other. By using the first limiting hole and the second limiting hole with different inner diameters, a stepped internal structure is formed on the fixed block, and the limiting boss on the pin sleeve is limited in the stepped fixed block, thereby achieving the limitation of the pin sleeve to prevent the pin sleeve from moving axially along the first limiting hole.

[0047] In some examples, the fixing block is provided with a lug, and the lug is connected and fixed to the external fixator.

[0048] The lug in this example can serve as an intermediate connecting piece between the fixing block and the external fixing frame, so that the fixing block can be mounted and fixed on the external fixing frame, which facilitates the installation of the fixing block.

[0049] In some examples, the lug is provided at an end of the fixing block away from the via hole.

[0050] By arranging the lug at the end of the fixing block away from the through hole, it is not necessary to provide a hole for connecting the lug at the end of the external fixator with the through hole, thereby reducing the hole opening process on the outer surface of the external fixator.

[0051] In some examples, the external fixator includes:

[0052] two first fixed beams; and

[0053] two second fixing beams, wherein the two first fixing beams and the two second fixing beams are alternately connected end to end along a third direction, so that the two first fixing beams and the two second fixing beams enclose the installation space;

[0054] Ends of at least two of the support beams are respectively connected and fixed to the two first fixing beams.

[0055] In this example, the two first fixed beams are spaced apart from each other, the two second fixed beams are spaced apart from each other, and the two first fixed beams and the two second fixed beams are alternately connected end to end to form a generally quadrilateral structure to enclose an installation space. The support beam is installed in the installation space, and the end of the support beam is connected to the two first fixed beams so that the support beam is fixed on the external fixing frame to achieve fixation of the overall structure.

[0056] In some examples, a fifth boss is provided on the second fixing beam, a fifth slot is provided on the first fixing beam, and the fifth boss is plugged into the fifth slot to connect the first fixing beam to the second fixing beam.

[0057] The fifth boss in this example is used to cooperate with the fifth slot on the first fixing beam to connect and fix the second fixing beam to the first fixing beam, thereby forming an overall frame structure of the external fixation frame.

[0058] In some examples, the fifth boss is further adhesively connected to the fifth slot; and / or the fifth boss is plug-connected and / or adhesively connected to the second fixing beam.

[0059] By bonding the fifth boss to the fifth slot, relative vibration between the fifth boss and the first fixing beam can be prevented, thereby improving the stability of the tray. In this example, by bonding the fifth boss to the second fixing beam, the fifth boss and the second fixing beam can be independently formed and then fixed together, thereby improving the processing convenience of the fifth boss and the second fixing beam.

[0060] Based on the above-mentioned tray, this application also proposes an example of a battery restraint device, which is used to restrain battery cells. The battery restraint device includes:

[0061] a pallet as in any of the above examples, and

[0062] An end plate is connected to the external fixator.

[0063] The battery restraint device in this example can restrain the battery cells so that the battery cells are kept in a preset position. The end plates are used to limit the position of the battery cells to prevent the battery cells from moving outward from the tray so that the battery cells can remain stable on the tray.

[0064] In some examples, the external fixing frame has an inner wall surface facing the installation space and an outer wall surface facing away from the installation space, and the tray further includes:

[0065] a connecting member connected to the external fixator and at least partially protruding from an outer wall surface of the external fixator;

[0066] The end plate is connected to the external fixator through the connecting piece.

[0067] In this example, the connecting member is arranged to protrude from the outer wall of the external fixator, which can facilitate the connection and fixation of the portion of the connecting member protruding from the external fixator with the end plate, thereby achieving installation and fixation of the end plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0069] FIG1 is a schematic structural diagram of an example of a tray of the present application;

[0070] FIG2 is a partial enlarged view of point 1A in FIG1 ;

[0071] FIG3 is a schematic structural diagram of an example of a first fixed beam of the present application;

[0072] FIG4 is a schematic structural diagram of another example of the first fixed beam of the present application;

[0073] FIG5 is a schematic structural diagram of an example of a second fixed beam of the present application;

[0074] FIG6 is a schematic structural diagram of another example of the second fixed beam of the present application;

[0075] FIG7 is a schematic structural diagram of an example of a support beam of the present application;

[0076] FIG8 is a structural diagram of another example of a support beam of the present application;

[0077] FIG9 is a schematic structural diagram of another example of a tray of the present application;

[0078] FIG10 is a partial enlarged view of portion 9A in FIG9 ;

[0079] FIG11 is an exploded schematic diagram of an example of a position limiting assembly of the present application;

[0080] FIG12 is a structural diagram of another example of a tray of the present application;

[0081] FIG13 is a partial enlarged view of portion 12A in FIG12;

[0082] FIG14 is a schematic structural diagram of an example of a battery restraint device of the present application;

[0083] FIG15 is a partial enlarged view of portion 14A in FIG14 .

[0084] Description of Figure Numbers:

[0085] Reference numerals Name Reference numerals Name 10 External fixing frame 11 First fixing beam 111 First boss 112 Fifth slot 113 Reserved hole 114 Threaded hole 12 Second fixing beam 121 Second boss 122 Fifth boss 123 Pin hole 124 Screw hole 20 Support beam 21 First slot 22 Third boss 23 Fourth boss 30 First reinforcement 31 Second slot 40 Second reinforcement 50 Limiting assembly 51 Fixing block 511 First limiting hole 512 Second limiting hole 513 Lug 52 Pin sleeve 521 Through hole 522 Limiting boss 60 Connecting member 61 Gasket 70 Restraint device 71 End plate 72 Screw rod 73 Push plate 74 Fixing plate 80 Battery cell

[0086] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0087] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0088] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0089] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0090] With the advancement of battery technology, batteries have become ubiquitous in every aspect of life and work. From small mobile phone batteries to large battery modules for new energy vehicles, lithium batteries are ubiquitous. A battery cell generally consists of an electrode assembly. This assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are inserted and released between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits between the positive and negative electrodes while allowing the active ions to pass through. The active material layers of the positive and negative electrodes use different materials. Among positive electrode materials, the most commonly used are lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate, and ternary materials (nickel, cobalt, and manganese polymers). Among negative electrode materials, natural graphite and artificial graphite are currently the main materials, along with nitrides, PAS, tin-based oxides, tin alloys, nano-anode materials, and other intermetallic compounds. The production of an electrode assembly requires several manufacturing processes, including slurry preparation, coating, cold pressing, winding, hot pressing, assembly, injection, and chemical formation.

[0091] During the battery cell manufacturing process, a tray is placed at the bottom of the battery cell to support its weight, allowing it to be moved to a predetermined position as needed. In some cases, the tray uses a monolithic sheet structure to support the entire weight of the battery cell, but this increases the weight of the tray, significantly increasing the energy consumption required during the formation process.

[0092] Please refer to Figures 1 and 2. The example of this application proposes a tray for carrying battery cells. The tray includes an external fixing frame 10 and multiple support beams 20. An installation space is formed inside the external fixing frame 10; the multiple support beams 20 are arranged in the installation space, and the multiple support beams 20 are arranged along a first direction (i.e., direction 1a in Figure 1), and the multiple support beams 20 are respectively connected to the external fixing frame 10; at least two support beams 20 are arranged at intervals; the multiple support beams 20 are used to carry battery cells 80.

[0093] The external fixator 10 forms an integral frame with an installation space. The external fixator 10 may be a substantially rectangular frame structure. The installation space is formed inside the external fixator 10 so that the external fixator 10 as a whole forms a hollow frame.

[0094] There are multiple support beams 20, each of which is installed within the installation space, that is, each of which is installed inside the external fixation frame 10. The support beams 20 are used to support the battery cells 80, thereby maintaining the battery cells 80 in a predetermined position. The support beams 20 are interconnected and fixed to the external fixation frame 10, so that the multiple support beams 20 can move synchronously with the external fixation frame 10. The multiple support beams 20 are arranged along a first direction, which can be the length direction of the external fixation frame 10 or the width direction. In this example, the first direction is the width direction of the external fixation frame 10.

[0095] In this example, multiple support beams 20 form a support portion for supporting the battery cells 80, and the support beams 20 form a support surface for supporting the battery cells 80. At least two of the multiple support beams 20 are spaced apart from each other, meaning that at least two of the support beams 20 are separated from each other, and the corresponding two support beams 20 are not connected to each other. Because the support beams 20 can be spaced apart from each other, the support portion formed by the multiple support beams 20 cannot form a single unit, resulting in gaps in the support portion for supporting the battery cells 80. This allows the support beams 20 to support the battery cells 80 while the support surface formed by the support beams 20 cannot form a complete plane.

[0096] Because the support area has gaps, the overall weight of the support area can be reduced, thereby reducing the weight of the tray. Since the external fixator 10 forms the outer frame of the tray, the battery cells 80 are mounted on the support beams 20 inside the external fixator 10, and the support beams 20 bear the weight of the battery cells 80. The battery cells 80 are supported by the spaced support beams 20, and there is no mutual pulling force between the spaced support beams 20. When the battery cells 80 are installed on the tray, the weight of the battery cells 80 acting on the spaced support beams 20 is dispersed. Even if a single support beam 20 deforms, there is no mutual pulling force between the support beams 20. This prevents interaction between the support beams 20, which could cause overall deformation of the support area formed by the multiple support beams 20. Because the multiple support beams 20 are individually connected to the external fixator 10, each support beam 20 can be easily connected and fixed to the external fixator 10 during installation, thereby improving the installation performance of the support beams 20.

[0097] When the battery cell 80 is formed, it is necessary to move the battery cell 80 together with the tray to a preset station. In this example, the two support beams 20 spaced apart from each other can be used to cooperate with the external support structure respectively, so that the external support structure acts on multiple support beams 20 respectively, thereby dispersing the relative force of the external support structure on the tray. When the tray interacts with the external support structure, due to the gap between the support beams 20, the parts of the external support structure used to support the tray can be staggered, thereby preventing the multiple supporting parts of the external support structure from interfering with each other. Since the battery cell 80 is in an environment with electrolyte during the formation process, when the electrolyte flows onto the tray, the electrolyte can flow out along the gap between adjacent support beams 20, thereby preventing the problem of electrolyte accumulation on the tray causing corrosion of the tray. When the electrolyte flows out along the gap between adjacent support beams 20, the battery cell 80 installed on the tray is not easy to slide relative to the tray, thereby improving the stability of the battery cell 80.

[0098] In some examples, the number of battery cells 80 is at least two groups, each group including at least one battery cell 80. The number of groups of battery cells 80 is the same as the number of groups of support beams 20, with each support beam 20 correspondingly supporting a group of battery cells 80, so that the multiple groups of battery cells 80 do not interfere with each other. Because support beams 20 supporting different groups of battery cells 80 do not interfere with each other, deformation of a single support beam 20 does not affect other support beams 20, thereby preventing overall deformation of the tray.

[0099] In some examples, the pallet includes a plurality of support beams 20 arranged along a first direction, and the plurality of support beams 20 are spaced apart along the first direction so that each support beam 20 is separated from its adjacent support beams 20, and each support beam 20 has no effect on the adjacent support beams 20.

[0100] In some examples, the external fixator 10 is a rectangular frame structure, and the installation space is generally rectangular. Multiple support beams 20 are installed within the installation space. Furthermore, in some examples, at least two support beams 20 are arranged parallel to the length of the external fixator 10. A gap is provided between the two parallel support beams 20 and adjacent support beams 20, so that the two parallel support beams 20 can each be used to support a battery cell 80.

[0101] In some examples, the thickness of the support beam 20 is equal to the thickness of the external fixator 10, so that when the tray is placed on the predetermined platform, both the support beam 20 and the external fixator 10 can be supported on the predetermined platform. In some examples, the thickness of the support beam 20 is less than the thickness of the external fixator 10, so that the external fixator 10 is supported on the predetermined platform, and the support beam 20 is suspended above the predetermined platform.

[0102] 2 to 6 , in some examples, the external fixator 10 is an integral frame structure, and the support beam 20 is fixed to the integral external fixator 10. In some examples, the external fixator 10 is a frame structure composed of a plurality of fixed beams.

[0103] Referring to Figures 1, 7, 8, and 9, further, in some examples, the multiple support beams 20 are arranged parallel to each other. In some examples, the multiple support beams 20 include a head beam and a tail beam along a first direction, with the head beam and tail beam being support beams 20 located at opposite ends of the first direction. The head beam and tail beam are arranged parallel to each other, and the head beam and tail beam are spaced apart from adjacent support beams 20, so that the head beam and tail beam each form an independent support portion. In some examples, an intermediate beam is provided between the head beam and tail beam, and the intermediate beam is spaced apart from the head beam and tail beam. In some examples, three support beams 20 described in any of the above examples are mounted on the inner side of the external fixator 10, with the three support beams 20 spaced apart along the first direction and parallel to each other. Among them, the two support beams 20 at both ends of the first direction are the head beam and the tail beam respectively, and the head beam and the tail beam are respectively connected to the external fixation frame 10 through the first reinforcement 30 described in any of the above examples. The support beam 20 located in the middle is the middle beam, and the middle amount is connected and fixed to the head beam and the tail beam through the second reinforcement 40 described in any of the above examples.

[0104] Referring to Figures 3, 4, 5, and 6, in some examples, the external fixator 10 is a hollow tubular structure, which provides a hollow structure for the entire external fixator 10 and reduces its overall weight. The external fixator 10 can be integrally injection molded, or can be formed using a combination of injection molding, winding, or bending processes. Furthermore, in some examples, the external fixator 10 is a single unitary structure enclosed by a tubular structure. In some examples, the external fixator 10 is a frame-like structure composed of multiple hollow tubular structures.

[0105] In some examples, the external fixator 10 is made of a carbon fiber material. Carbon fiber material is a composite material composed of a resin matrix impregnated and fused with carbon fiber bundles composed of short fibers. During processing, a molten prepreg containing a resin matrix and carbon fiber bundles is added to a predetermined mold, and the product in the mold is formed into a predetermined shape. By forming the external fixator 10 from a carbon fiber material, the overall corrosion resistance and structural strength of the external fixator 10 can be effectively improved, making the battery cells 80 less susceptible to corrosion and wear in the electrolyte environment during the formation process.

[0106] In some examples, the support beam 20 is a hollow tubular structure to reduce its overall weight, thereby achieving a lightweight pallet design. The support beam 20 in this example can be a hollow tubular structure that is integrally injection molded, or it can be manufactured using a combination of injection molding, winding, and bending processes. The support beam 20 in this example can be manufactured using the same process as the external fixator 10.

[0107] In some examples, the support beam 20 is made of the carbon fiber material described in the above examples. Furthermore, the support beam 20 and the external fixator 10 can be made of the same material.

[0108] Referring to Figures 3, 4, and 7, in some examples, one of the support beam 20 and the external fixator 10 is provided with a first boss 111, while the other is provided with a first recessed groove 21. The first boss 111 engages with the first recessed groove 21 to connect the support beam 20 to the external fixator 10. The first boss 111 and the first recessed groove 21 cooperate to securely connect the support beam 20 and the external fixator 10. This plug-in securement facilitates the connection between the support beam 20 and the external fixator 10, enabling rapid assembly of the support beam 20 and the external fixator 10.

[0109] Furthermore, in some examples, a first slot 21 is provided on the support beam 20, and a first boss 111 is provided on the external fixator 10, and the first boss 111 is inserted into the first slot 21. In some examples, the first slot 21 is a groove formed at the end of the support beam 20. In some examples, the support beam 20 is an entire hollow tubular structure, and the first slot 21 is a groove formed by enclosing the inner wall surface of the support beam 20. In some examples, the external fixator 10 and the first boss 111 are integrally provided to enable rapid prototyping of the external fixator 10 and the first boss 111. Furthermore, in some examples, both the external fixator 10 and the first boss 111 are made of the carbon fiber material described in any of the above examples to enhance the overall structural strength of the pallet.

[0110] In some examples, the support beam 20 is provided with the first boss 111. The first boss 111 can be integrally formed with the support beam 20, or the support beam 20 and the first boss 111 can be separately molded and then fixedly mounted on the support beam 20. The external fixator 10 is provided with the first retaining groove 21. The first retaining groove 21 can be a groove formed in the external fixator 10 so that the first retaining groove 21 can be formed simultaneously when the external fixator 10 is molded.

[0111] In some examples, a first boss 111 and a first slot 21 are provided on the support beam 20, and a first boss 111 and a first slot 21 are also provided on the external fixer 10. The first boss 111 on the support beam 20 is plugged into the first slot 21 on the external fixer 10, and the first boss 111 on the external fixer 10 is plugged into the first slot 21 on the support beam 20, thereby realizing mutual plug-in fixation between the two.

[0112] In some examples, the first boss 111 is also adhesively connected to the first slot 21; after the first boss 111 and the first slot 21 are plugged into each other, an adhesive is filled into the gap between the outer wall of the first boss 111 and the inner wall of the first slot 21 to bond and secure the first boss 111 to the inner wall of the first slot 21. This prevents the first boss 111 from moving relative to the first slot 21, preventing the support beam 20 from vibrating relative to the external fixation frame 10, and thereby helping to improve the stability of the support beam 20. Furthermore, because the gap between the first boss 111 and the inner wall of the first slot 21 can be filled with adhesive, liquids such as electrolyte can be prevented from entering the gap between the first boss 111 and the first slot 21. This prevents the accumulation of electrolyte within the support beam 20 or the external fixation frame 10, which could cause corrosion within the tray. When performing the formation process of the battery cell 80, the battery cell 80 needs to be kept in a relatively clean environment. The adhesive in this example fills the gap between the connection parts of the external fixation frame 10 and the support beam 20, which can prevent impurities accumulated in the gap between the two from entering the battery cell 80 formation process equipment, thereby preventing equipment contamination and helping to improve product processing quality.

[0113] Because a gap exists between the first boss 111 and the first slot 21 when they are plugged into each other, the corresponding structures may move to a certain extent. After the adhesive fills the gap between the first boss 111 and the first slot 21 and before the adhesive solidifies, the adhesive is deformable. Therefore, the adhesive objects can be moved relative to each other before the adhesive solidifies to adjust the relative positions of the corresponding structures.

[0114] In some examples, the external fixator 10 is provided with a first boss 111, which is adhesively connected to the external fixator 10. In this example, the first boss 111 is mounted on the external fixator 10, and the support beam 20 is provided with the first retaining groove 21 described in any of the above examples. The first boss 111 and the external fixator 10 are separate structures, and the first boss 111 is adhesively connected to the external fixator 10, thereby achieving the installation and fixation of the first boss 111. In this example, the first boss 111 and the external fixator 10 can be separately molded and then adhesively bonded to the external fixator 10, thereby achieving independent molding of the two, improving molding efficiency and simplifying the processing design of the molding mold. Because the adhesive can fill the gap between the first boss 111 and the external fixator 10, it prevents corrosion or wear at the connection between the first boss 111 and the external fixator 10, thereby improving product quality.

[0115] By using an adhesive for bonding, the installation position of the first boss 111 on the external fixator 10 can be adjusted before the adhesive solidifies, thereby achieving positional adjustment of the first boss 111. Because the first boss cooperates with the support beam 20, when the position of the first boss 111 is adjusted, the relative position of the support beam 20 also changes, thereby facilitating adjustment of the relative position of the support beam 20 and reducing installation errors of the support beam 20.

[0116] In this example, after the first boss 111, the external fixator 10, and the support beam 20 are formed, the first boss 111 can be inserted into the first slot 21 of the support beam 20, and then the first boss 111 can be bonded to the external fixator 10. Furthermore, in some examples, after the first boss 111 is inserted into the first slot 21, an adhesive is filled between the outer wall of the first boss 111 and the inner wall of the first slot 21, and the first boss 111 and the external fixator 10 are bonded and fixed to each other by the adhesive.

[0117] Furthermore, in some examples, the first boss 111 is made of the carbon fiber material described in any of the above examples to improve the structural strength and corrosion resistance of the first boss 111 .

[0118] Referring to Figures 1, 7, and 9, in some examples, the pallet further includes a first reinforcement member 30, through which at least one support beam 20 is connected to the external fixator 10. The support beam 20 has ends for connecting to the external fixator 10, which may be the ends in the longitudinal direction of the support beam 20. The first reinforcement member 30 is disposed between the ends in the longitudinal direction of the support beam 20 to connect the external fixator 10 to a portion near the middle of the support beam 20, thereby preventing deformation near the middle of the support beam 20.

[0119] In this example, the support beam 20 has a first end and a second end disposed along its length. The first reinforcement member 30 is located between the first and second ends of the support beam 20 to connect and secure the portion between the first and second ends of the support beam 20 to the external fixator 10, thereby preventing deformation of the support beam 20 away from its ends. In this example, the first reinforcement member 30 can be located in the middle of the length of the support beam 20, or near the middle of the length of the support beam 20.

[0120] Furthermore, in some examples, there are multiple first reinforcement members 30, and the multiple first reinforcement members 30 are arranged at intervals to provide reinforcement support for the support beam 20 from different positions. In this example, the multiple first reinforcement members 30 can be arranged at equal intervals along a predetermined distance, or the multiple first reinforcement members 30 can be arranged at unequal intervals.

[0121] In some examples, there are multiple first reinforcement members 30 , each support beam 20 is connected to at least one first reinforcement member 30 , and each first support beam 20 is connected and fixed to the external fixation frame 10 via at least one first reinforcement member 30 .

[0122] In some examples, there are multiple first reinforcement members 30 , and the multiple first reinforcement members 30 are spaced apart along the second direction (ie, direction 1 b in FIG. 1 ), and the second direction intersects the first direction.

[0123] In this example, a plurality of first reinforcement members 30 spaced apart along the second direction are used to support and reinforce the support beam 20, thereby preventing deformation of the support beam 20. Since the plurality of support beams 20 are arranged along the first direction, the first reinforcement members 30 in this example are spaced apart along the second direction intersecting the first direction, thereby supporting the support beam 20 from different positions.

[0124] In this example, the second direction intersects the first direction, which means that when projected onto a plane parallel to the upper surface of the tray, the first direction and the second direction are not parallel to each other.

[0125] Furthermore, in some examples, the first direction in this example may be the width direction of the external fixator 10, the second direction may be the length direction of the external fixator 10, and the length direction of the support beam 20 may be parallel to the length direction of the external fixator 10, so that the first reinforcement 30 is spaced apart along the length direction of the support beam 20.

[0126] In order to reduce the overall weight of the pallet, in some examples, the first reinforcement 30 is a hollow tubular structure. The first reinforcement 30 can be a tube with a polygonal cross section, or a hollow structure made by at least one process such as injection molding, winding or bending.

[0127] In some examples, the first reinforcement member 30 is connected to the external fixation frame 10 by plugging. By adopting plugging or other methods for fixing, the first reinforcement member 30 and the external fixation frame 10 can be quickly connected and fixed.

[0128] Furthermore, in some examples, one of the first reinforcement member 30 and the external fixator 10 defines a second slot 31, and the other defines a second boss 121, wherein the second boss 121 is inserted into the second slot 31. Furthermore, in this example, the external fixator 10 defines the second boss 121, and the first reinforcement member 30 defines the second slot 31.

[0129] Furthermore, in some examples, the first reinforcement member 30 is a hollow tubular structure, the second retaining groove 31 is a hollow portion within the first reinforcement member 30, and the second boss 121 is plugged into the first reinforcement member 30. Furthermore, in some examples, the external fixator 10 and the second boss 121 can be integrally formed to facilitate overall molding and enhance the structural strength of the connection between the external fixator 10 and the second boss 121. In this example, the second boss 121 and the external fixator 10 are formed separately and then secured to the external fixator 10 by bonding or clamping.

[0130] In some examples, the second boss 121 and the inner wall of the second slot 31 are bonded to each other to prevent the first reinforcement member 30 from vibrating relative to the second boss 121, thereby helping to improve the structural strength and stability of the first reinforcement member 30. Filling the gap between the second boss 121 and the second slot 31 with adhesive can prevent impurities such as electrolyte from entering the gap between the second boss 121 and the second slot 31, facilitating subsequent cleaning of the tray and preventing contamination of the tray.

[0131] In some examples, the first reinforcement member 30 and the external fixator 10 are bonded to each other. In this example, the first reinforcement member 30 and the external fixator 10 are separately molded and then bonded to each other using an adhesive.

[0132] Furthermore, in some examples, after the first reinforcement 30, the external fixator 10, and the support beam 20 are separately molded, the second boss 121 is bonded to the external fixator 10, and then the second boss 121 on the external fixator 10 is inserted into the second slot 31 on the first reinforcement 30, and an adhesive is used to fill the gap between the inner wall surface of the second slot 31 and the outer wall surface of the second boss 121.

[0133] Referring to Figures 1, 7, and 9, in some examples, the support beam 20 is plugged into the first reinforcement member 30. In this example, a third slot (not shown) is provided on one of the support beam 20 and the first reinforcement member 30, and a third boss 22 is provided on the other, which is plugged into the third slot.

[0134] Furthermore, the third boss 22 is convexly provided on the side of the support beam 20 facing the external fixator 10, and the third slot is concavely provided on the side of the first reinforcement 30 facing away from the external fixator 10. When the first reinforcement 30 is a hollow structure, the third slot is a portion of the hollow portion of the first reinforcement 30. Furthermore, in this example, the outer wall surface of the third boss 22 and the inner wall surface of the third slot are bonded to each other to prevent the first reinforcement 30 from shaking relative to the support beam 20, and the gap between the third boss 22 and the inner wall surface of the third slot is filled with adhesive to improve the cleaning performance of the tray. The third boss 22 in this example can be integrally provided with the support beam 20. In this example, the third boss 22 and the support beam 20 can also be formed separately, and the third boss 22 can be plugged or bonded to the support beam 20.

[0135] In some examples, the support beam 20 is bonded to the first reinforcement member 30. The ends of the first reinforcement member 30 can be directly bonded to the support beam 20, or the first reinforcement member 30 can be bonded to the support beam 20 via an intermediate connector. Furthermore, in this example, the support beam 20 is provided with the third boss 22 described in any of the above examples. The first reinforcement member 30 and the third boss 22 are bonded to each other to enhance the structural stability of the first reinforcement member 30 and prevent relative wear between the first reinforcement member 30 and the support beam 20.

[0136] 7 , 8 , and 9 , in some examples, the pallet further includes a second reinforcement member 40 , through which adjacent support beams 20 are connected. In this example, the second reinforcement member 40 is used to connect and secure adjacent support beams 20 to improve the mechanical properties of the adjacent support beams 20.

[0137] In some examples, there is a gap between adjacent support beams 20 , and the second reinforcement member 40 is disposed between adjacent support beams 20 .

[0138] In some examples, adjacent support beams 20 are positioned adjacent to each other, and the second reinforcement member 40 is positioned on one side of the support beam 20 along a fourth direction (i.e., direction 1c in FIG. 1 ), which is perpendicular to the first and second directions. Furthermore, the fourth direction is the thickness direction of the pallet, and the second reinforcement member 40 is positioned on one side of the support beam 20 in this thickness direction. In some examples, the second reinforcement member 40 can be integrally formed with any of the support beams 20, and the second reinforcement member 40 and the adjacent support beam 20 are interconnected and fixed, thereby enabling the second reinforcement member 40 to connect two adjacent support beams 20.

[0139] In some examples, the second reinforcement 40 is identical to the first reinforcement 30 described in any of the above examples in at least one of shape, size, and material. In some examples, there may be multiple second reinforcements 40, with the multiple second reinforcements 40 spaced apart along the second direction. Furthermore, in some examples, the number of second reinforcements 40 is identical to the number of first reinforcements 30 described in any of the above examples. In some examples, in the first direction, the number and position of the first reinforcements 30 described in any of the above examples are identical to those of the second reinforcements 40 described in this example. In some examples, the positions of the first reinforcements 30 described in any of the above examples and the second reinforcements 40 described in this example are staggered in the first direction. The phrase "the first reinforcement 30 and the second reinforcement 40 are identical in the first direction" means that, when projected along the first direction, their projections overlap. The phrase "the first reinforcement 30 and the second reinforcement 40 are staggered in the first direction" means that, when projected along the first direction, their projections overlap.

[0140] Referring to Figures 1, 7, and 8, in some examples, the second reinforcement member 40 is pluggably connected to the support beam 20. In this example, one of the second reinforcement member 40 and the support beam 20 defines a fourth slot (not shown), and the other defines a fourth boss 23. The fourth boss 23 is pluggably connected to the fourth slot, thereby ensuring the pluggable connection between the second reinforcement member 40 and the support beam 20.

[0141] Furthermore, in this example, the fourth slot is formed on the second reinforcement member 40, and the fourth boss 23 is formed on the support beam 20, so that the second reinforcement member 40 can be plugged into and fitted with the support beam 20. The fourth boss 23 can be integrally formed with the support beam 20, or the fourth boss 23 and the support beam 20 can be separately formed and then fixed to each other.

[0142] Furthermore, the second reinforcement member 40 in this example is a hollow structure, and the fourth slot in the above example is a hollow groove formed by the second reinforcement member 40 .

[0143] In some examples, the inner wall of the fourth groove on the second reinforcement member 40 is bonded to the outer wall of the fourth boss 23, and the gap between the fourth groove and the fourth boss 23 is filled with adhesive to prevent relative vibration between the second reinforcement member 40 and the support beam 20 and to prevent the accumulation of impurities in the gap between the fourth boss 23 and the fourth groove. In some examples, the fourth boss 23 can be made of the same material and / or process as the support beam 20.

[0144] In some examples, the second reinforcement member 40 is bonded to the support beam 20. In this example, after the second reinforcement member 40 and the support beam 20 are separately molded, the second reinforcement member 40 and the support beam 20 are bonded to each other, simplifying the molding molds for the second reinforcement member 40 and the support beam 20. In this example, the second reinforcement member 40 can be directly bonded to the support beam 20, or the second reinforcement member 40 can be bonded to the support beam 20 via a connector 60. Furthermore, in some examples, the support beam 20 is provided with the fourth boss 23 described in any of the above examples. The second reinforcement member 40 and the fourth boss 23 are bonded to each other, and the fourth boss 23 serves as an intermediate connector between the second reinforcement member 40 and the support beam 20.

[0145] In some examples, the support beam 20 has a planar lower surface. When moving the pallet, the lower surface of the support beam 20 can be used to mate with an external support structure. By making the lower surface of the support beam 20 planar, the contact area between the support beam 20 and the external support structure is increased, thereby improving the stability of the pallet. Because the support beam 20 is disposed within the mounting space inside the external fixture 10, when mated with the external support structure, the support structure can be placed beneath the pallet and abutted against the lower surface of the support beam 20, thereby enabling operations such as lifting the pallet.

[0146] In some examples, the upper surface of the support beam 20 is flat to facilitate molding. Further, in some examples, the support beam 20 is a rectangular parallelepiped structure. In some examples, the external fixator 10 has a lower surface, and the lower surface of the external fixator 10 is flat.

[0147] In some examples, at least two support beams 20 are arranged in parallel. The two parallel support beams 20 can be used to cooperate with an external support structure, facilitating the deployment of the external support structure and interoperating with other equipment. Furthermore, in this example, multiple support beams 20 are spaced apart along a first direction and arranged parallel to each other. Furthermore, the lower surfaces of the multiple support beams 20 are all planar, so that the lower surface of any support beam 20 can cooperate with the external support structure.

[0148] Please refer to Figures 6, 9 and 10. In some examples, a pin hole 123 is provided on the external fixing frame 10. The pin hole 123 can be used to cooperate with an external structure to facilitate the fixation of the tray. Taking the cooperation between the pin hole 123 and the external pin as an example, when the external pin is inserted into the pin hole 123, the movement of the tray in the axial direction of the pin is limited by the mutual cooperation between the pin and the pin hole 123. When the tray is moved to the formation equipment or other equipment, the pin hole 123 can be used to cooperate with the external structure to limit the relative displacement of the tray, thereby fixing the tray and keeping the battery cells 80 on the tray in the preset position.

[0149] Furthermore, in some examples, pin holes 123 are provided on the lower surface of the external fixator 10 so that external structures such as pins can be inserted into the pin holes 123 of the external fixator 10 from below the tray, thereby limiting the relative movement of the tray.

[0150] In some examples, the difference from the previous example is that the external fixator 10 has an inner surface facing the installation space and an outer surface away from the installation space, and the pin hole 123 in the above example passes through the outer surface of the external fixator 10 .

[0151] In some examples, the difference from the previous example is that the external fixator 10 has an upper surface, and the pin holes 123 described in the above example pass through the upper surface of the external fixator 10 .

[0152] 9 , 10 and 11 , in some examples, the tray further includes a position limiting assembly 50 installed in the external fixing frame 10 , the position limiting assembly 50 defines a pin hole 123 , and a through hole 521 is defined on the external fixing frame 10 at a position corresponding to the pin hole 123 .

[0153] In this example, the stopper assembly 50 is used to form a pin hole 123. The pin hole 123 can be a through hole or a countersunk hole provided in the stopper assembly 50. The through hole 521 on the external fixator 10 corresponds to the position of the pin hole 123, so that an external pin or other structure can pass through the through hole 521 and be inserted into the pin hole 123.

[0154] In some examples, the external fixator 10 is a hollow structure, and the limiting assembly 50 is installed in the external fixator 10 .

[0155] The pin hole 123 is formed by using the limiting assembly 50. When a pin or other structure is inserted into the pin hole 123, the pin and the pin are engaged with each other to prevent the pin from abrading the inner wall surface of the through hole 521, thereby improving the structural strength of the engagement portion between the external fixator 10 and the pin.

[0156] Furthermore, in some examples, the limiting assembly 50 includes a fixing block 51 and a pin sleeve 52. The fixing block 51 is fixedly mounted within the external fixator 10. The pin sleeve 52 is fixedly mounted to the fixing block 51 and defines a pin hole 123. In this example, the fixing block 51 serves as an intermediate connector between the pin sleeve 52 and the external fixator 10. The pin sleeve 52 can be fixedly connected to the fixing block 51 or detachably connected to the fixing block 51.

[0157] The fixing block 51 can be fixed to the external fixator 10 by bonding or other methods. In some examples, a screw hole 124 is provided on the external fixator 10 , and the fixing block 51 is mounted on the external fixator 10 by a screw passing through the screw hole 124 .

[0158] Furthermore, in some examples, a first limiting hole 511 and a second limiting hole 512 connected to the first limiting hole 511 are provided at a position of the fixing block 51 corresponding to the through hole 521, and the second limiting hole 512 is located between the first limiting hole 511 and the through hole 521; the inner diameter of the first limiting hole 511 is larger than the inner diameter of the second limiting hole 512; a limiting boss 522 is protruding from the outer wall of the pin sleeve 52, and the maximum outer circumferential diameter of the limiting boss 522 is larger than the inner diameter of the second limiting hole 512; the limiting boss 522 is inserted into the first limiting hole 511, and the pin sleeve 52 is inserted into the second limiting hole 512.

[0159] In this example, the first limiting hole 511 and the second limiting hole 512 can be coaxial holes to facilitate molding processing. The inner diameter of the second limiting hole 512 can be equal to the inner diameter of the through hole 521. The first limiting hole 511 is located at the end of the second limiting hole 512 away from the through hole 521, and the inner diameter of the first limiting hole 511 is larger than the inner diameter of the second limiting hole 512, so that the first limiting hole 511 and the second limiting hole 512 form a generally stepped hole structure in the fixed block 51. The limiting boss 522 on the outer wall of the pin sleeve 52 is used to cooperate with the first limiting hole 511. The inner diameter of the second limiting hole 512 is smaller than the maximum outer circumference diameter of the limiting boss 522. When the limiting boss 522 is inserted into the first limiting hole 511, the limiting boss 522 is blocked outside the second limiting hole 512, so that the limiting boss 522 cannot move along the axial direction of the second limiting hole 512. When the pin sleeve 52 is inserted into the second limiting hole 512, the cooperation between the limiting boss 522 and the first limiting hole 511 limits the maximum insertion depth of the pin sleeve 52 into the second limiting hole 512. Because the first limiting hole 511 is located at the end of the second limiting hole 512 away from the through hole 521, when the pin sleeve 52 is inserted into the second limiting hole 512, it is blocked by the limiting boss 522, thereby determining the relative position of the pin sleeve 52 and the through hole 521, thereby maintaining the predetermined position of the pin sleeve 52 relative to the external fixator 10.

[0160] In some examples, the fixing block 51 is provided with a lug 513 that is connected and fixed to the external fixator 10. The lug 513 protrudes from the fixing block 51 and serves as an intermediate connection between the fixing block 51 and the external fixator 10, facilitating installation of the fixing block 51. In some examples, the lug 513 is provided with a threaded hole 114, and the external fixator 10 is provided with a screw hole 124. A screw is provided on the external fixator 10, which passes through the screw hole 124 on the external fixator 10 and is threadedly connected to the threaded hole 114 in the lug 513. In some examples, the lug 513 and the fixing block 51 are both bonded and fixed to the inner wall surface of the external fixator 10. The provision of the lug 513 can increase the contact area between the limiting assembly 50 and the external fixator 10, thereby improving the stability of the fixing block 51.

[0161] In some examples, the lug 513 is located at the end of the fixing block 51 away from the through-hole 521. Because the lug 513 serves as an intermediate connector between the external fixator 10 and the fixing block 51, when the lug 513 is located away from the through-hole 521, the connector 60, such as a screw, used to connect the lug 513 can be located away from the through-hole 521, thereby reducing the need for drilling and other processing on the same surface of the external fixator 10. Furthermore, the lug 513 in this example is connected to the external fixator 10 via the screws described in the above examples.

[0162] Referring to Figures 1 and 12, in some examples, the external fixation frame 10 includes two first fixing beams 11 and two second fixing beams 12. The two first fixing beams 11 and the two second fixing beams 12 are alternately connected end to end along a third direction so that the two first fixing beams 11 and the two second fixing beams 12 enclose an installation space; the ends of at least two support beams 20 are respectively connected and fixed to the two first fixing beams 11.

[0163] In this example, the two first fixing beams 11 are spaced apart, and the two second fixing beams 12 are spaced apart. The two first fixing beams 11 and the two second fixing beams 12 are alternately connected end-to-end to form a quadrilateral structure. Furthermore, the two first fixing beams 11 and the two second fixing beams 12 are of equal length, so that the external fixator 10 forms a rectangular parallelepiped. Furthermore, in this example, the length of the first fixing beams 11 is less than the length of the second fixing beams 12.

[0164] In this example, the ends of at least two support beams 20 are respectively connected and fixed to the two first fixing beams 11. The ends of the support beam 20 refer to the two ends of the support beam 20 along the second direction. Furthermore, the two first fixing beams 11 are respectively disposed at the two ends of the support beam 20 along the second direction, and the two second fixing beams 12 are respectively disposed on both sides of the support beam 20 along the first direction. In this example, each of the multiple support beams 20 is respectively connected to the two first fixing beams 11. The third direction in this example refers to either a clockwise or counterclockwise direction.

[0165] The external fixator 10 is formed by using two first fixing beams 11 and two second fixing beams 12 that cooperate with each other, thereby enclosing an installation space within the external fixator 10. Since the first and second fixing beams 11, 12 can be formed separately, the processing molds for the corresponding structures can be effectively simplified, improving product processing efficiency. In some examples, the first and second fixing beams 11, 12 are both hollow tubular structures to reduce the overall weight of the external fixator 10. In some examples, the first and second fixing beams 11, 12 are both made of carbon fiber material to enhance the structural strength and corrosion resistance of the first and second fixing beams 11, 12.

[0166] Please continue to refer to Figures 3 to 6. In some examples, a fifth boss 122 is protruded from the second fixing beam 12, and a fifth slot 112 is opened on the first fixing beam 11. The fifth boss 122 is inserted into the fifth slot 112 to connect the first fixing beam 11 to the second fixing beam 12.

[0167] In this example, the fifth retaining groove 112 is a recessed groove formed in the first fixed beam 11. The fifth boss 122 is connected to the second fixed beam 12. When the fifth boss 122 is inserted into the fifth retaining groove 112, it blocks the movement of the first fixed beam 11 in the longitudinal direction of the second fixed beam 12. In some examples, the fifth boss 122 is integrally formed with the second fixed beam 12. In some examples, the second fixed beam 12 and the fifth boss 122 are separately formed, and then the fifth boss 122 is attached to the second fixed beam 12. In some examples, the first fixed beam 11 is a hollow tubular structure, and the fifth retaining groove 112 is a portion of the hollow structure of the first fixed beam 11.

[0168] In some examples, the difference from the above examples is that a fifth slot 112 is provided on the second fixing beam 12 , and a fifth boss 122 is provided on the first fixing beam 11 .

[0169] In some examples, the fifth boss 122 is also adhesively connected to the fifth slot 112; the gap between the fifth boss 122 and the fifth slot 112 is filled with adhesive to prevent contamination caused by impurities entering the gap. In some examples, the first fixing beam 11 is a hollow tubular structure. After the fifth boss 122 is inserted into the fifth slot 112, the gap between the two is sealed with adhesive to prevent impurities from accumulating within the first fixing beam 11, thereby preventing impurities from affecting the process when the tray is placed in process equipment such as chemical formation.

[0170] In some examples, the fifth boss 122 is plug-connected to the second fixing beam 12 so that the fifth boss 122 and the second fixing beam 12 can be formed separately, thereby simplifying the forming steps. In this example, the fifth boss 122 can be made of the same material as the second fixing beam 12.

[0171] In some examples, the fifth boss 122 is bonded to the second fixing beam 12. Adhesive bonding allows the fifth boss 122 and the second fixing beam 12 to be formed separately and then assembled. Adhesive bonding reduces the need for drilling holes or other processing on the second fixing beam 12, thereby improving the structural strength of the second fixing beam 12.

[0172] Furthermore, in some examples, after the fifth boss 122 and the fifth groove 112 are bonded to each other, the fifth boss 122 is bonded to the second fixed beam 12, thereby improving the bonding efficiency of the fifth boss 122. Because the gap between the fifth protrusion and the fifth groove 112, as well as the gap between the fifth boss 122 and the second fixed beam 12, can be directly filled with adhesive, the problem of impurities accumulating in the gaps between the connectors 60 at different locations can be effectively avoided.

[0173] Please refer to Figures 13, 14 and 15. Based on the above-mentioned tray examples, the present application also proposes an example of a battery restraint device 70, which is used to restrain the battery cell 80. The battery restraint device 70 includes a tray as described in any of the above examples and an end plate 71, and the end plate 71 is connected to the external fixation frame 10.

[0174] In this example, battery cells 80 are placed on a tray, and the tray's support beams 20 are used to support the battery cells 80. End plates 71 are used to prevent the battery cells 80 from moving along the surface of the tray. Furthermore, in this example, end plates 71 are provided at both ends of the tray in the longitudinal direction to prevent the battery cells 80 from moving along the length of the tray.

[0175] It can be understood that the examples in this application are merely illustrative of the arrangement of the tray described in the above examples. The battery cell 80 restraint device 70 described in this example may also include functional components such as a screw rod 72 , a push plate 73 , and a fixing plate 74 to achieve the restraint effect of the battery cell 80 .

[0176] In some examples, the end plates 71 are connected to the first fixing beams 11 to position the battery cells 80 from at least two ends of the tray. In this example, the end plates 71 can be directly connected and fixed to the first fixing beams 11 by at least one of bolting, clamping, pinning, keying, or welding. Alternatively, other intermediate connectors can be used to connect and fix the first fixing beams 11 and the end plates 71 to each other.

[0177] Referring to Figure 13, in some examples, the external fixator 10 has an inner wall surface facing the installation space and an outer wall surface facing away from the installation space. The tray also includes a connecting member 60, which is connected to the external fixator 10 and at least partially protrudes from the outer wall surface of the external fixator 10; the end plate 71 is connected to the external fixator 10 through the connecting member 60.

[0178] Referring to Figure 15 , in this example, the connector 60 is at least partially connected to the external fixator 10, serving as an intermediate connector between the external fixator 10 and the end plate 71. Furthermore, in some examples, the external fixator 10 is composed of a first fixing beam 11 and a second fixing beam 12 as described in any of the above examples, and the connector 60 is connected to the first fixing beam 11. The first fixing beam 11 is provided with a through hole and a pre-set hole 113, wherein the pre-set hole 113 extends through the outer wall of the external fixator 10. A gasket 61 is disposed within the first fixing beam 11, with an outer diameter larger than that of the through hole. After the connector 60 extends into the first fixing beam 11 through the pre-set hole 113, the distal end of the connector 60 penetrates the gasket 61 and the through hole and protrudes out of the outer wall of the first fixing beam 11, thereby connecting the connector 60 to the end plate 71. It will be appreciated that the restraint device described in this application can be used in a variety of equipment, such as a forming machine, a volumetric machine, and the like.

[0179] It is worth noting that since the example of the battery restraint device 70 of the present application is based on the example of the above-mentioned tray, the example of the battery restraint device 70 of the present application includes all technical solutions of all examples of the above-mentioned tray, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0180] Referring to Figures 1 to 15 , in some examples, a tray is used to support battery cells 80 while they undergo processes such as formation. The tray includes an external fixing frame 10 and multiple support beams 20 disposed inside the external fixing frame 10, with at least two support beams 20 spaced apart to reduce the overall weight of the tray. In this example, the external fixing frame 10 is a rectangular structure formed by interconnecting two first fixing beams 11 and two second fixing beams 12. The multiple support beams 20 are each interconnected with the two first fixing beams 11. In this example, both the support beams 20 and the external fixing frame 10 can be made of carbon fiber to enhance the tray's corrosion resistance. When assembling the support beams 20 and the external fixing frame 10, the first boss 111 can be mated with the first slot 21 to achieve assembly. To prevent vibration of the support beam 20, the gap between the first boss 111 and the first slot is filled with adhesive to prevent wear caused by vibration of the support beam 20. In this example, a first reinforcement 30 is provided between the support beam 20 and the external fixing frame 10, and a second reinforcement 40 is provided between adjacent support beams 20, wherein the first reinforcement 30 and the second reinforcement 40 can also be made of carbon fiber material. In order to facilitate the movement and stacking of products, a pin hole 123 is provided on the external fixing frame 10, and the pin hole 123 cooperates with external pins and other structures to achieve the limitation and fixation of the pallet. A connector 60 for connecting the end plate 71 is provided on the external fixing frame 10 to facilitate the limitation of the end plate 71 when restraining the battery cell 80. In this example, different components can be connected to each other by adhesives. Before the adhesive solidifies, the position of the corresponding components can be adjusted, thereby achieving fine-tuning of the corresponding structural position.

[0181] The above description is merely an optional example of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A tray for carrying battery cells, wherein: The tray comprises: an external fixator, wherein an installation space is formed inside the external fixator; and A plurality of support beams are provided in the installation space, the plurality of support beams are arranged along a first direction, and the plurality of support beams are respectively connected to the external fixing frame; at least two of the support beams are arranged at intervals; and the plurality of support beams are used to carry the battery cells.

2. The pallet according to claim 1, wherein The external fixator and / or the support beam are hollow tubular structures; And / or, the external fixator and / or the support beam are made of carbon fiber material.

3. The pallet according to claim 1 or 2, wherein: One of the support beam and the external fixator is provided with a first boss, and the other is recessed with a first slot; the first boss is plugged into the first slot to connect the support beam to the external fixator.

4. The pallet according to claim 3, wherein: The first boss is also adhesively connected to the first slot; And / or, the external fixator is provided with the first boss, and the first boss is adhesively connected to the external fixator.

5. The pallet according to any one of claims 1 to 4, wherein The tray also includes: A first reinforcement member, through which at least one of the support beams is connected to the external fixation frame.

6. The pallet according to claim 5, wherein: There are multiple first reinforcement members, and the multiple first reinforcement members are arranged at intervals along the second direction, and the second direction intersects with the first direction.

7. The pallet according to claim 5 or 6, wherein: The first reinforcement member and the external fixing frame are plug-connected and / or adhesively connected.

8. A pallet according to any one of claims 5 to 7, wherein The support beam is plug-connected and / or adhesively connected to the first reinforcement.

9. The pallet according to any one of claims 1 to 8, wherein The tray also includes: A second reinforcement member is provided, and adjacent support beams are connected to each other via the second reinforcement member.

10. The pallet according to claim 9, wherein The second reinforcement is plug-connected and / or adhesively connected to the support beam.

11. The pallet according to any one of claims 1 to 10, wherein The support beam has a lower surface, and the lower surface of the support beam is a plane; And / or, at least two of the support beams are arranged in parallel.

12. A pallet according to any one of claims 1 to 11, wherein The external fixing frame is provided with a pin hole.

13. The pallet according to claim 12, wherein: The tray also includes: A limiting component is installed in the external fixing frame, and the limiting component is provided with the pin hole; and a through hole is provided on the external fixing frame at a position corresponding to the pin hole.

14. The pallet according to claim 13, wherein The limiting component includes: a fixing block, fixedly installed in the external fixing frame; and The pin sleeve is fixedly mounted on the fixing block, and the pin sleeve is provided with the pin hole.

15. The pallet of claim 14, wherein: The fixing block is provided with a first limiting hole and a second limiting hole connected to the first limiting hole at a position corresponding to the through hole, and the second limiting hole is located between the first limiting hole and the through hole; the inner diameter of the first limiting hole is larger than the inner diameter of the second limiting hole; A limiting boss is protruded on the outer wall of the pin sleeve, and the maximum outer diameter of the limiting boss is larger than the inner diameter of the second limiting hole; the limiting boss is inserted into the first limiting hole, and the pin sleeve is inserted into the second limiting hole.

16. A pallet according to claim 14 or 15, wherein: The fixing block is provided with a lug, and the lug is connected and fixed to the external fixing frame.

17. The pallet of claim 16, wherein: The lug is arranged at an end of the fixing block away from the through hole.

18. A pallet according to any one of claims 1 to 17, wherein The external fixator comprises: two first fixed beams; and two second fixing beams, wherein the two first fixing beams and the two second fixing beams are alternately connected end to end along a third direction, so that the two first fixing beams and the two second fixing beams enclose the installation space; Ends of at least two of the support beams are respectively connected and fixed to the two first fixing beams.

19. The pallet of claim 18, wherein: A fifth boss is protruded from the second fixing beam, a fifth slot is formed on the first fixing beam, and the fifth boss is plugged into the fifth slot to connect the first fixing beam with the second fixing beam.

20. The pallet of claim 19, wherein The fifth boss is also bonded to the fifth slot; and / or the fifth boss is plug-connected and / or bonded to the second fixing beam.

21. A battery restraint device for restraining a battery cell, wherein: The battery restraint device comprises: A pallet as claimed in any one of claims 1 to 20, and An end plate is connected to the external fixator.

22. The battery restraint device according to claim 21, wherein: The external fixing frame has an inner wall surface facing the installation space and an outer wall surface facing away from the installation space, and the tray further includes: a connecting member connected to the external fixator and at least partially protruding from an outer wall surface of the external fixator; The end plate is connected to the external fixator through the connecting piece.

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