Tray device, battery production line, and replacement method for pressurizing member of tray device

Abstract

Embodiments of the present disclosure provide a tray device, a battery production line, and a replacement method for a pressurizing member of a tray device. The tray device comprises a tray and at least one pressurizing mechanism arranged on the tray; the pressurizing mechanism comprises end plate pressurizing tools arranged in pairs; the end plate pressurizing tools arranged in pairs are used for pressurizing battery modules in a first direction; at least one end plate pressurizing tool comprises a mounting seat and a pressurizing member; the pressurizing member is used for being in contact with an end plate of each battery module; an insertion slot is formed in one of the mounting seat and the pressurizing member, and the other of the mounting seat and the pressurizing member is provided with an insertion member; the insertion member is fitted into the insertion slot so as to detachably mount the pressurizing member onto the mounting seat; the insertion member is fitted into the insertion slot in a second direction of the tray device, wherein the second direction is perpendicular to the first direction; moreover, the pressurizing member can move upwards under the action of external force to be separated from the mounting seat.

Description

Tray device, battery production line, and method for replacing a pressurized component of a tray device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on Chinese patent application number 202311310276.5, application date October 11, 2023, and invention name “Pallet device, battery production line, and method for replacing a pressure part of a pallet device”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this disclosure as a reference. Technical Field

[0003] The present disclosure relates to the field of battery technology, and in particular to a tray device, a battery production line, and a method for replacing a pressure member of the tray device. Background Art

[0004] This section is intended to provide a background or context for the embodiments of the present disclosure. No admission is made that the description herein is prior art by virtue of its inclusion in this section.

[0005] New energy batteries are being used more and more widely in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are also being increasingly used in energy storage fields.

[0006] For example, a power battery pack consists of multiple battery modules. During assembly, the modules need to be pressurized. To accurately and efficiently pressurize battery modules of varying sizes, the pressurizing device's pressurizing components must be adapted to the module size. Consequently, different pressurizing components must be replaced to suit different battery modules. However, replacing pressurizing components on existing production lines is complex and inefficient.

[0007] Summary of the Invention

[0008] In view of this, the embodiments of the present disclosure are intended to provide a tray device, a battery production line, and a method for replacing a pressurized part of a tray device, which can improve the problems of complex pressurized part replacement operation and low replacement efficiency.

[0009] The present disclosure provides a tray device, comprising a tray and at least one pressure mechanism disposed on the tray.

[0010] The pressurizing mechanism includes end plate pressurizing fixtures arranged in pairs, and the end plate pressurizing fixtures arranged in pairs are used to pressurize the battery module along a first direction;

[0011] At least one end plate pressurizing tool comprises a mounting seat and a pressurizing member, the pressurizing member being used to contact the end plate of the battery module, one of the mounting seat and the pressurizing member being provided with a plug-in slot, and the other being provided with a plug-in member, the plug-in member being pluggably engaged with the plug-in slot to detachably mount the pressurizing member to the mounting seat;

[0012] The plug-in component is plugged into the plug-in slot along a second direction of the tray device, wherein the second direction is perpendicular to the first direction, and the pressure component can move upward under an external force to separate from the mounting seat.

[0013] The tray device is equipped with a plug-in piece and a plug-in slot. When assembling, the pressure piece only needs to move linearly along the plug-in direction, and when disassembling, the pressure piece only needs to move linearly in the opposite direction of the plug-in direction. The movement mode is single and no screws need to be disassembled. Therefore, the pressure piece and the mounting seat can be quickly assembled and disassembled, and the operation is convenient, thereby improving the problems of complex replacement operation and low replacement efficiency of the pressure piece, which is beneficial to reducing assembly costs and also conducive to realizing machine automation operation.

[0014] During assembly, the pressure piece is inserted into the mounting base from top to bottom. Thereafter, the weight of the pressure piece helps maintain it in the inserted position. Furthermore, while the pressure piece is applying pressure to the battery module, it experiences virtually no upward force. Therefore, even without limiting its upward movement, it can still be reliably held in the inserted position. Furthermore, the weight of the pressure piece does not generate a horizontal force component, which helps increase its reliability.

[0015] In some embodiments, the mounting seat has a first positioning surface on the side facing the pressure member, and the pressure member has a second positioning surface on the side facing the mounting seat. Both the first positioning surface and the second positioning surface are perpendicular to the first direction and contact each other.

[0016] In this way, the contact between the first positioning surface and the second positioning surface facilitates the positioning of the pressure member, so that the part of the pressure member used to contact the end plate of the battery module remains in the expected position relative to the vertical surface, making it easier for the pressure member to pressurize the battery module along the first direction.

[0017] In some embodiments, the mounting seat includes a seat body and a connector, wherein at least a portion of the surface of the seat body facing the side where the pressure piece is located forms a first positioning surface, the connector is connected to the seat body and protrudes from the first positioning surface along a first direction, and the connector slot is provided on the pressure piece.

[0018] Since there is no need to remove the mounting base from the pallet when replacing the pressure piece, the mounting base does not need to be transported or stored. Even if the connector protrudes from the first positioning surface, it is not easy for the connector to collide with other components. By setting the plug-in slot on the pressure piece, the pressure piece can be locally provided with no obvious protrusions, which is convenient for improving the anti-collision reliability of the pressure piece and also convenient for the storage and transportation of the pressure piece.

[0019] In some embodiments, the pressing mechanism includes a first fastener, and the connector and the seat body are detachably connected via the first fastener.

[0020] Since the connector does not need to be removed when replacing the pressure piece, even if the two are connected by the first fastener, it does not affect the convenience of replacing the pressure piece. In addition, the use of the first fastener can also replace the model of the connector without changing the structure of the seat body to meet the installation requirements of different models of pressure pieces.

[0021] In some embodiments, the pressure member includes a connecting block and a pressure block. The connecting block and the pressure block are split structures, and the pressure block is arranged on the side of the connecting block facing the battery module. The pressure block is used to contact the end plate of the battery module, and the plug-in slot or connector is arranged on the connecting block.

[0022] The pressurizing block and the connecting block are connected as two independent parts. In this embodiment, it is convenient to process the pressurizing block and the connecting block separately and then connect the two together, thereby reducing the processing difficulty and cost of processing the pressurizing part.

[0023] In some embodiments, the pressure block is a plastic part or a rubber part; and / or the connecting block is a metal part.

[0024] The plastic or rubber pressure block can reduce the risk of damage to the battery module and is simple to manufacture. The metal connection block can ensure the strength of the connection block, thereby improving the connection strength and reliability between the pressure block and the mounting base.

[0025] In some embodiments, the pressurizing mechanism includes a second fastener, and the pressurizing block and the connecting block are detachably connected via the second fastener.

[0026] In this embodiment, if the design shape and design size of the connector and the socket change, but the design shape and design size of the pressure block do not change, the pressure block does not need to be replaced, which can reduce material costs. If the design shape and design size of the connector and the socket do not change, but the design shape and design size of the pressure block change, the connection block does not need to be replaced, which can reduce material costs. In addition, for the pressure piece, the pressure block needs to adapt to the model of the battery module, and the connection block needs to adapt to the model of the mounting base. Therefore, different models of pressure pieces can be assembled by combining different models of connection blocks and different models of pressure blocks. This can improve the commonality rate and reduce the inventory pressure of stagnant materials.

[0027] In some embodiments, the connecting block is provided with a groove, the pressure member includes a limiting block, the limiting block and the connecting block are split structures, the limiting block is provided at the edge of the groove, and defines a plug-in slot with the groove.

[0028] In this embodiment, a portion of the connector is constrained in the groove by the limiting block to prevent the connector from being separated from the slot along the first direction. In addition, the processing difficulty of the groove can be simplified.

[0029] In some embodiments, a recessed area is provided on the side of the connection block facing the mounting seat, and the limiting block is provided in the recessed area. The limiting block does not protrude from the surface of the connection block facing the mounting seat.

[0030] In this way, the limiting block will not affect the contact between the first positioning surface and the second positioning surface.

[0031] In some embodiments, the pressure member includes a third fastener, and the connecting block and the limiting block are detachably connected via the third fastener.

[0032] In this way, the connection between the connecting block and the limiting block is reliable, and since the connecting block and the limiting block do not need to be disassembled during the replacement of the pressurizing member, even if the two are connected by a third fastener, the replacement of the pressurizing member is not affected.

[0033] In some embodiments, the pressurizing mechanism includes a driving mechanism and a pair of side panel tooling, wherein the pair of side panel tooling is used to support the battery module, and the driving mechanism is used to drive the side panel tooling to move away from or toward each other to adjust the distance between the two side panel toolings.

[0034] Since the distance between a pair of side panel fixtures needs to match the size of the battery module, when the size of the battery module changes, the distance between the pair of side panel fixtures can be adaptively adjusted according to the model of the battery module.

[0035] In some embodiments, the tray device includes a guide rail, which is provided on the tray. The guide rail is slidably matched with the paired side panel tooling to slide and guide the side panel tooling.

[0036] The guide rail can improve the stability and reliability of the side panel tooling during the sliding process, making the position accuracy of the side panel tooling more reliable.

[0037] In some embodiments, the number of the pressurizing mechanisms is at least two, and the pressurizing mechanisms are arranged side by side in a manner perpendicular to the first direction; a single pressurizing mechanism includes a pair of side plate fixtures, and the pair of side plate fixtures are used to support the battery module;

[0038] The pallet device includes at least two synchronization mechanisms, and the side panel tooling of each pressurizing mechanism on the first side along the side-by-side direction is connected by one part of the synchronization mechanism, and the side panel tooling of each pressurizing mechanism on the second side along the side-by-side direction is connected by another part of the synchronization mechanism, so that the side panel tooling of each pressurizing mechanism on the same side of the side-by-side direction moves synchronously and in the same direction with the same displacement.

[0039] When the battery module dimensions remain unchanged, the two side panels of the pressurizing mechanism do not need to be moved or adjusted. However, when the battery module dimensions change, adjusting the distance between the two side panels of one pressurizing mechanism simultaneously adjusts the distance between the two side panels of the remaining pressurizing mechanisms, improving adjustment efficiency.

[0040] In some embodiments, the synchronization mechanism includes a gas spring, which includes a cylinder and a piston rod. The piston rod is connected to the side plate tooling of one of the pressurizing mechanisms, and the cylinder is connected to the side plate tooling of the other pressurizing mechanism.

[0041] On the one hand, the gas spring is convenient for adjusting the stroke. On the other hand, even if the gas medium in the gas spring leaks, it is not easy to cause pollution to the tray or battery module.

[0042] An embodiment of the present disclosure provides a battery production line, including a gripping mechanism, a silo device, and a tray device of any embodiment of the present disclosure, wherein the silo device is used to store multiple pressure-applying parts, the gripping mechanism is used to remove the pressure-applying parts on the tray device and transfer them to the silo device, and to insert the target pressure-applying part on the silo device into the mounting seat.

[0043] In this embodiment, since the pressure member and the mounting seat are connected through the plug-in fit of the connector and the plug-in slot, when removing the pressure member, it is only necessary to drive the pressure member to move linearly in the opposite direction of the plug-in direction so that the pressure member is separated from the mounting seat; when assembling, it is only necessary to drive the pressure member to move linearly in the plug-in direction so that the connector is inserted into the plug-in slot. The operation is simple and it is convenient to automatically replace the pressure member.

[0044] The present disclosure provides a method for replacing a pressure member of a tray device, comprising:

[0045] Clamping the existing pressure member on the tray device and moving the existing pressure member upward so that the plug-in slot on the existing pressure member is disengaged from the plug-in member on the mounting seat, or the plug-in member on the pressure member is disengaged from the plug-in slot on the mounting seat;

[0046] Clamp the target pressure piece, move the target pressure piece to the top of the mounting seat, and move the target pressure piece from top to bottom so that the connector on the target pressure piece is inserted into the socket on the mounting seat, or the socket on the target pressure piece is plugged into the connector on the mounting seat.

[0047] The replacement method of the disclosed embodiment allows for disassembly by simply moving the existing pressurizing member upward a certain distance to disengage it from the mounting base. For assembly, the pressurizing member can be assembled by simply aligning the target pressurizing member's insertion slot or connector with the connector or insertion slot on the mounting base and moving the target pressurizing member downward to insert the connector into the insertion slot. Both disassembly and assembly operations are relatively simple, making pressurizing member replacement convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference numerals are used throughout the drawings to denote the same components. In the drawings:

[0049] FIG1 is a schematic diagram of a tray device according to an embodiment of the present disclosure;

[0050] FIG2 is a schematic diagram of the structure shown in FIG1 from another perspective;

[0051] FIG3 is a schematic diagram of an end plate pressurizing tooling according to an embodiment of the present disclosure;

[0052] FIG4 is a schematic diagram of the structure shown in FIG3 from another perspective;

[0053] FIG5 is an exploded schematic diagram of the structure shown in FIG3 from another perspective;

[0054] FIG6 is a schematic diagram of a pressurizing member according to an embodiment of the present disclosure;

[0055] FIG7 is a schematic diagram of the structure shown in FIG6 from another perspective;

[0056] FIG8 is a schematic diagram of the structure shown in FIG5 from another perspective;

[0057] FIG9 is a cross-sectional view taken along the CC direction in FIG4 ;

[0058] FIG10 is a flow chart of a method for replacing a pressurizing member according to an embodiment of the present disclosure.

[0059] Explanation of the reference numerals 1-tray; 2-pressurizing mechanism; 21-end plate pressurizing fixture; 211-mounting seat; 2111-seat body; 2111a-first positioning surface; 2112-connector; 212-pressurizing member; 212a-connecting slot; 2121-pressurizing block; 2122-connecting block; 2122a-groove; 212b-second positioning surface; 212c-recessed area; 2123-limiting block; 22-side panel fixture; 5-guide rail; 24-driving mechanism; 241-gear; 242-rack; 3-synchronizing mechanism; 31-piston rod; 32-cylinder. DETAILED DESCRIPTION

[0060] The following embodiments of the technical solution of the present disclosure are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure and are therefore only examples and are not intended to limit the scope of protection of the present disclosure.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this disclosure; the terms "including" and "having" and any variations thereof in this disclosure are intended to cover non-exclusive inclusions.

[0062] In the description of the embodiments of the present disclosure, technical terms such as "first," "second," and "third" are used solely to distinguish different objects and should not be understood to indicate or imply relative importance or to implicitly specify the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, "plurality" means more than two, unless otherwise specifically defined.

[0063] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0064] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, D and / or F can represent three situations: D exists alone, D and F exist simultaneously, and F exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0065] In the description of the embodiments of the present disclosure, the orientations or positional relationships indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present disclosure.

[0066] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0067] In the description of the embodiments of the present disclosure, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0068] With the country's vigorous promotion of new energy vehicles, new energy vehicles are experiencing a golden opportunity for development. Vehicle safety and stability have always been a primary concern. Therefore, improving the safety of new energy vehicles will be a key factor in determining their rapid adoption. Battery modules are the primary component of new energy vehicle battery packs, and improving their safety is a crucial approach to improving the safety of these vehicles.

[0069] A battery module typically includes multiple battery cells, which are confined within a module frame formed by welding end plates and side plates. During the module assembly process, the end plates at both ends of the module exert a certain pre-tightening force on the battery to enhance and improve the battery's cycle performance.

[0070] Therefore, during the assembly process of the battery module, the battery module needs to be pressurized so that the end plates at both ends of the module exert a certain pre-tightening force on the battery. In order to accurately and efficiently pressurize battery modules of different sizes, the pressurizing parts of the pressurizing mechanism need to adapt to the size of the battery module. Therefore, when the size of the battery module on the battery production line changes, different pressurizing parts need to be replaced to pressurize different battery modules.

[0071] However, the pressurized parts on existing battery production lines are generally fixed to the tray along the pressurization direction of the battery module by multiple screws. When the pressurized parts need to be replaced, multiple screws need to be unscrewed, the existing pressurized parts need to be removed, the replaced pressurized parts need to be placed, and then multiple screws need to be tightened. The replacement operation is complicated, inefficient, and costly. For example, if it is done manually, the working hours are long, the replacement efficiency is low, and the labor cost is high. If a machine is used for automated replacement, on the one hand, the machine needs to tighten multiple screws, which requires a high degree of freedom of spatial movement of the machine, making automated operation inconvenient and increasing the cost of the machine; on the other hand, when the last screw is removed, the pressurized part may still be unable to be positioned and fall off, which is not conducive to the automated operation of a single machine.

[0072] In order to solve the problems of complex replacement operation, low replacement efficiency, and difficulty in achieving automation, an embodiment of the present disclosure provides a tray device, which includes a tray and at least one set of pressurizing mechanisms arranged on the tray. The pressurizing mechanism includes end plate pressurizing fixtures arranged in pairs, and the end plate pressurizing fixtures arranged in pairs are used to pressurize the battery module along a first direction. At least one end plate pressurizing fixture includes a mounting seat and a pressurizing member, and the pressurizing member is used to contact the end plate of the battery module. One of the mounting seat and the pressurizing member is provided with a plug-in slot, and the other is provided with a plug-in member, and the plug-in member is plugged into and matched with the plug-in slot to detachably mount the pressurizing member to the mounting seat.

[0073] The tray device is equipped with a plug-in piece and a plug-in slot. When assembling, the pressure piece only needs to move linearly along the plug-in direction, and when disassembling, the pressure piece only needs to move linearly in the opposite direction of the plug-in direction. The movement mode is single and no screws need to be disassembled. Therefore, the pressure piece and the mounting seat can be quickly assembled and disassembled, and the operation is convenient, thereby improving the problems of complex replacement operation and low replacement efficiency of the pressure piece, which is beneficial to reducing assembly costs and also conducive to realizing machine automation operation.

[0074] The tray device of the disclosed embodiment can be used in the battery production process to stack battery modules. The battery module comprises multiple battery cells arranged along a first direction, with end plates at each end along the arrangement direction, and each battery cell positioned between the two end plates. Paired end plate pressurizing fixtures apply force to the two end plates, causing the two end plates to move toward each other, thereby closely arranging the battery cells.

[0075] According to some embodiments of the present disclosure, referring to Figures 1 and 2, embodiments of the present disclosure provide a tray device, comprising a tray 1 and at least one set of pressurizing mechanisms 2 disposed on the tray 1. The at least one set of pressurizing mechanisms 2 refers to the fact that there can be only one pressurizing mechanism 2 or two or more pressurizing mechanisms 2.

[0076] The pressurizing mechanism 2 includes end plate pressurizing fixtures 21 arranged in pairs. That is, every two end plate pressurizing fixtures 21 form a pair of end plate pressurizing fixtures.

[0077] The paired end plate pressurizing fixtures 21 are used to pressurize the battery module along a first direction. This first direction is the pressurizing direction. For example, if a battery module includes multiple cells stacked along the first direction, the pressurizing direction of the end plate pressurizing fixtures 21 is the same as the stacking direction of the cells.

[0078] 3 and 4 , at least one end plate pressurizing tool 21 includes a mounting seat 211 and a pressurizing member 212. The pressurizing member 212 is configured to contact the end plate of the battery module. That is, the mounting seat 211 does not contact the end plate of the battery module.

[0079] Please refer to Figure 5. One of the mounting seat 211 and the pressure member 212 is provided with a plug-in slot 212a, and the other is provided with a connector 2112. Please refer to Figure 9. The connector 2112 is plugged into the plug-in slot 212a to detachably mount the pressure member 212 to the mounting seat 211.

[0080] The pressure member 212 is a structure used to apply pressure to the end plates of the battery modules. During the pressurization process, the pressure member 212 contacts the end plates of the battery modules, preventing damage to the modules by the extrusion device. Different battery modules can be subjected to different forces at different locations. Therefore, different pressure members 212 can be used to apply pressure to different types of battery modules.

[0081] It should be noted that one of the mounting seat 211 and the pressurizing member 212 is provided with a plug-in slot 212a, and the other is provided with a plug-in member 2112. This means that the mounting seat 211 may be provided with a plug-in member 2112, and the pressurizing member 212 may be provided with a plug-in slot 212a. Alternatively, the mounting seat 211 may be provided with a plug-in slot 212a, and the pressurizing member 212 may be provided with a plug-in member 2112.

[0082] Of course, in other embodiments, the mounting seat 211 may be provided with a connector 2112 and a plug-in slot 212a, and the pressure piece 212 may also be provided with a connector 2112 and a plug-in slot 212a, the connector 2112 on the pressure piece 212 may be plugged into and matched with the plug-in slot 212a on the mounting seat 211, and the plug-in slot 212a on the pressure piece 212 may be plugged into and matched with the connector 2112 on the mounting seat 211.

[0083] It should be noted that when the connector 2112 is plugged into the plug slot 212a, the connector 2112 cannot rotate relative to the plug slot 212a, and the pressure member 212 can remain in the plugged position in the absence of other forces acting on the pressure member 212.

[0084] The tray device of the embodiment of the present disclosure is connected with the plug-in slot 212a through the plug-in part 2112. Whether it is assembly or disassembly, it only requires the pressure part 212 to move linearly along the plug-in direction or the opposite direction of the plug-in direction. The movement mode is single, and the pressure part 212 and the mounting seat 211 can be quickly assembled and disassembled. The operation is convenient, thereby improving the problems of complex replacement operation and low replacement efficiency of the pressure part 212, which is beneficial to reducing assembly costs and also conducive to realizing machine automation operation.

[0085] The plugging direction of the plug-in component 2112 and the plug-in slot 212a is not limited, for example, it can be horizontal, vertical, or a direction with an acute angle to the vertical direction, etc., as long as the pressure member 212 can be kept in the plugged position.

[0086] Illustratively, the connector 2112 is plugged into the insertion slot 212a along a second direction, wherein the second direction is perpendicular to the first direction, and the pressure member 212 can move upward and disengage from the mounting seat 211 under an external force. In other words, the second direction is substantially parallel to the height direction of the tray assembly. For example, the height direction corresponds to the vertical direction in Figure 1 . In this embodiment, during assembly, the pressure member 212 is plugged into the mounting seat 211 from top to bottom. Thereafter, the weight of the pressure member 212 helps maintain the pressure member 212 in the plugged position. Furthermore, while the pressure member 212 is pressurizing the battery module, it is substantially immune to upward forces. Therefore, even without restraining the pressure member 212 from upward movement, the pressure member 212 can still be reliably maintained in the plugged position. Furthermore, the weight of the pressure member 212 does not generate a horizontal force component on the pressure member 212, thereby enhancing the reliability of the pressure member 212.

[0087] In other embodiments, the direction of the connector 2112 and the connector slot 212a may also form an angle of no more than 30° with the vertical direction. During disassembly, the pressure member 212 can move diagonally upward under the action of external force to detach from the mounting seat 211.

[0088] In some embodiments, the plug-in slot 212a is similar to a falcon groove, and the structure of the connector 2112 is similar to a tenon. The matching relationship between the plug-in slot 212a and the connector 2112 is similar to a mortise and tenon structure. In this way, there is no need for fasteners such as screws to connect, and the mounting seat 211 and the pressure piece 212 can be reliably plugged in and matched through the mortise and tenon structure.

[0089] For example, referring to Figures 5 and 8 , the mounting base 211 has a first positioning surface 2111a on the side facing the pressure member 212, and the pressure member 212 has a second positioning surface 212b on the side facing the mounting base 211. The first positioning surface 2111a and the second positioning surface 212b are both perpendicular to the first direction and in contact with each other. Thus, the contact between the first positioning surface 2111a and the second positioning surface 212b facilitates positioning of the pressure member 212, ensuring that the portion of the pressure member 212 that contacts the end plate of the battery module remains in the desired position relative to the vertical plane, facilitating the pressure member 212 to pressurize the battery module along the first direction.

[0090] The first positioning surface 2111a and the second positioning surface 212b are both perpendicular to the first direction, which means that the first positioning surface 2111a is perpendicular to the first direction, the second positioning surface 212b is also perpendicular to the first direction, and the first positioning surface 2111a and the second positioning surface 212b are parallel to each other. Specifically, the first direction is substantially horizontal, and the first positioning surface 2111a and the second positioning surface 212b are substantially vertical planes.

[0091] In this embodiment, the first positioning surface 2111a can serve as an installation reference plane for the pressure member 212. The installation position of the pressure member 212 is positioned by the mutual contact between the first positioning surface 2111a and the second positioning surface 212b, which is beneficial to maintaining the stability of the position of the pressure member 212 for contacting the battery module.

[0092] For example, referring to Figures 5, 6, and 7, the insertion slot 212a is provided on the pressure member 212. Referring to Figure 8, the mounting base 211 includes a base body 2111 and a connector 2112. A first positioning surface 2111a is formed on at least a portion of the surface of the base body 2111 facing the pressure member 212. The connector 2112 is connected to the base body 2111 and protrudes from the first positioning surface 2111a in a first direction. This facilitates insertion of the first connector 2112 into the insertion slot 212a. Since it is not necessary to remove the mounting base 211 from the pallet 1 when replacing the pressure piece 212, the mounting base 211 does not need to be transported or stored. Even if the connector 2112 protrudes from the first positioning surface 2111a, the connector 2112 is not likely to collide with other components. The plug-in slot 212a is set on the pressure piece 212, and the pressure piece 212 may not be locally provided with obvious protrusions, which is convenient for improving the anti-collision reliability of the pressure piece 212 and also convenient for the storage and transportation of the pressure piece 212.

[0093] The connection relationship between the connector 2112 and the seat body 2111 is not limited.

[0094] Exemplarily, the connector 2112 is connected to the seat body 2111 in a detachable manner, that is, the connector 2112 and the seat body 2111 are connected as two independent parts. In this way, it is convenient to process the seat body 2111 and the connector 2112 separately, and then connect the two together, thereby reducing the processing difficulty and cost of processing and installing the seat 211. In addition, if the design shape and design size of the connector 2112 and the connector slot 212a change, the seat body 2111 does not need to be replaced or removed, and only the changed connector 2112 needs to be replaced.

[0095] The manner in which the connector 2112 and the seat body 2111 are detachably connected is not limited.

[0096] For example, in some embodiments, the pressure mechanism 2 includes a first fastener, and the connector 2112 and the seat body 2111 are detachably connected via the first fastener. Since the connector 2112 does not need to be removed when replacing the pressure member 212, even if the first fastener is used to connect the two, the pressure member 212 can still be easily replaced. Furthermore, the use of the first fastener allows the type of connector 2112 to be changed without changing the structure of the seat body 2111, thereby meeting the installation requirements of different models of pressure members 212. The first fastener can be a screw, bolt, etc., without limitation.

[0097] In some more specific embodiments, the connector 2112 is provided with a countersunk hole, the first fastener passes through the countersunk hole along the first direction and is screwed into the seat body 2111, and the end cap of the first fastener is located in the countersunk hole to avoid affecting the fit between the connector 2112 and the connector slot 212a.

[0098] In other embodiments, the seat body 2111 and the connector 2112 are an integrated structure. The integrated mounting seat 211 can reduce the number of parts, shorten assembly time, and improve assembly efficiency.

[0099] The one-piece structure refers to one-piece processing and molding, such as one-piece injection molding, one-piece casting molding, or machining and molding from the same piece of blank.

[0100] It should be noted that the one-piece injection molding can adopt single-color injection molding or double-color injection molding.

[0101] In some embodiments, the pressure member 212 is an integral structure, such as an integrally molded plastic member or an integrally molded metal member. The integral pressure member 212 can reduce the number of parts, shorten assembly time, and improve assembly efficiency.

[0102] In other embodiments, the pressure member 212 includes a connecting block 2122 and a pressure block 2121. The pressure block 2121 is disposed on the side of the connecting block 2122 facing the battery module, that is, the connecting block 2122 is disposed on the side of the pressure block 2121 facing the mounting base 211. The pressure block 2121 is configured to contact the end plate of the battery module, and the insertion slot 212a or the plug 2112 is disposed on the connecting block 2122.

[0103] Exemplarily, the connecting block 2122 and the pressure block 2121 are split structures, that is, the pressure block 2121 and the connecting block 2122 are connected as two independent components. In this embodiment, it is convenient to process the pressure block 2121 and the connecting block 2122 separately, and then connect the two together, thereby reducing the processing difficulty and cost of processing the pressure part 212.

[0104] The specific material of the pressure block 2121 is not limited here, for example, it can be a plastic part or a rubber part. In this way, the probability of the pressure block 2121 damaging the battery module can be reduced, and at the same time, the molding and manufacturing are simple.

[0105] The specific material of the connecting block 2122 is not limited here, for example, it can be a metal part. In this way, the strength of the connecting block 2122 can be guaranteed, thereby improving the connection strength and reliability between the pressurizing member 212 and the mounting seat 211.

[0106] There is no limitation on the connection method between the pressure block 2121 and the connection block 2122. For example, in an embodiment where the pressure block 2121 is a plastic part and the connection block 2122 is a metal part, the pressure block 2121 can be injection molded onto the connection block 2122 to be combined together.

[0107] In some embodiments, the pressurizing mechanism 2 includes a second fastener, and the pressurizing block 2121 and the connecting block 2122 are detachably connected via the second fastener. The second fastener may be a screw, a bolt, or the like, which is not limited here. In this embodiment, if the design shape and design size of the connector 2112 and the insertion slot 212a change, while the design shape and design size of the pressurizing block 2121 do not change, the pressurizing block 2121 does not need to be replaced, thereby reducing material costs. If the design shape and design size of the connector 2112 and the insertion slot 212a do not change, while the design shape and design size of the pressurizing block 2121 change, the connecting block 2122 does not need to be replaced, thereby reducing material costs. In addition, for the pressure parts, the pressure block 2121 needs to adapt to the model of the battery module, and the connecting block 2122 needs to adapt to the model of the mounting base 211. Therefore, different models of pressure parts can be assembled by combining different models of connecting blocks 2122 and different models of pressure blocks 2121. This can improve the universality rate and reduce the inventory pressure of stagnant materials.

[0108] In some embodiments, the required shape of the inserting slot 212 a may be directly processed on the connecting block 2122 .

[0109] In other embodiments, please refer to Figure 5, the connecting block 2122 is provided with a groove 2122a, and the pressure member 212 includes a limit block 2123. The limit block 2123 and the connecting block 2122 are a split structure. The limit block 2123 is provided at the edge of the groove 2122a and defines the plug-in slot 212a with the groove 2122a.

[0110] In this embodiment, a portion of the connector 2112 is constrained in the groove 2122a by the stopper 2123 to prevent the connector 2112 from being separated from the inserting groove 212a along the first direction. In addition, the processing difficulty of the groove 2122a can be simplified.

[0111] The connection method between the limiting block 2123 and the connecting block 2122 is not limited. It can be a detachable connection or a non-detachable connection. For example, a non-detachable connection method such as riveting or welding can be used, or a detachable connection method such as screw connection or bolt connection can be used.

[0112] In the embodiments of the present disclosure, a detachable connection means that after two parts are connected, the connection between the two parts can be released without destroying the structure of the connection between the two parts. A non-detachable connection means that after two parts are connected, the connection between the two parts can only be released by destroying the structure of the connection between the two parts.

[0113] In some embodiments, the pressure member 212 includes a third fastener, and the connecting block 2122 and the limiting block 2123 are detachably connected via the third fastener. This ensures a secure connection between the connecting block 2122 and the limiting block 2123. Furthermore, since the connecting block 2122 and the limiting block 2123 do not need to be disassembled during replacement of the pressure member 212, even if the third fastener is used to connect the two, replacement of the pressure member 212 is not affected.

[0114] 5 , a recessed area 212c is provided on the side of the connecting block 2122 facing the mounting seat 211 , and the limiting block 2123 is provided in the recessed area 212c . The limiting block 2123 does not protrude from the surface of the connecting block 2122 facing the mounting seat 211 .

[0115] It should be noted that at least a portion of the surface of the connecting block 2122 facing the mounting seat 211 is the aforementioned second positioning surface 212b, that is, the limiting block 2123 does not protrude from the second positioning surface 212b. In this way, the limiting block 2123 does not affect the contact between the first positioning surface 2111a and the second positioning surface 212b.

[0116] It should be noted that the surface of the limiting block 2123 facing the mounting seat 211 can be flush with the surface of the connecting block 2122 facing the mounting seat 211. In this way, the limiting block 2123 can also contact the first positioning surface 2111a of the seat body 2111, thereby increasing the contact area between the pressure member 212 and the mounting seat 211 and improving positioning reliability. Of course, the surface of the limiting block 2123 facing the mounting seat 211 can also be recessed into the surface of the connecting block 2122 facing the mounting seat 211. In this embodiment, the limiting block 2123 does not contact the first positioning surface 2111a of the seat body 2111.

[0117] In the embodiment of the present disclosure, among a pair of end plate pressurizing fixtures 21 of the pressurizing mechanism 2, only one end plate pressurizing fixture 21 may adopt the structure of the pressurizing member 212 and the mounting seat 211 of any one of the above-mentioned embodiments, or both end plate pressurizing fixtures 21 may respectively adopt the structure of the pressurizing member 212 and the mounting seat 211 of any one of the above-mentioned embodiments.

[0118] In some embodiments, one end plate pressurizing fixture 21 is a fixed fixture, and the other end plate pressurizing fixture 21 is a movable fixture. Specifically, during the process of pressurizing the battery module, the fixed fixture remains stationary, while the movable fixture can be moved along a first direction toward the fixed fixture to pressurize the battery module. In other embodiments, both end plate pressurizing fixtures 21 can be movable fixtures, that is, during the process of pressurizing the battery module, both end plate processing fixtures can be moved along the first direction toward each other.

[0119] In the embodiment of the present disclosure, description is made by taking as an example one of the end plate pressurizing fixtures 21 as a fixed fixture and the other end plate pressurizing fixture 21 as a movable fixture.

[0120] For example, referring to Figures 1 and 2 , the pressurizing mechanism 2 includes a drive mechanism 24 and a pair of side panel fixtures 22. The pair of side panel fixtures 22 are used to support the battery modules, that is, the battery modules are placed on the pair of side panel fixtures 22. The drive mechanism 24 is used to drive the side panel fixtures 22 to move away from or toward each other to adjust the distance between the two side panel fixtures 22.

[0121] Because the distance between the pair of side panel fixtures 22 needs to match the size of the battery module, the distance between the pair of side panel fixtures 22 can be adaptively adjusted when the size of the battery module changes. When the drive mechanism 24 drives the side panel fixtures 22 toward each other, the distance between the pair of side panel fixtures 22 increases; when the drive mechanism 24 drives the side panel fixtures 22 toward each other, the distance between the pair of side panel fixtures 22 decreases.

[0122] In some embodiments, one of the side panel tooling 22 in a pair of side panel toolings 22 remains stationary relative to the pallet 1, and the driving mechanism 24 can only drive the other side panel tooling 22 to move, and can also achieve adjustment of the distance between the pair of side panel toolings 22.

[0123] In other embodiments, both side panel fixtures 22 can move relative to the pallet 1 , and the driving mechanism 24 drives the pair of side panel fixtures 22 to move synchronously.

[0124] For example, referring to Figures 1 and 2 , the tray assembly includes guide rails 5 disposed on the tray 1. The guide rails 5 slidably engage with the paired side panel fixtures 22 to guide the sliding movement of the side panel fixtures 22. The guide rails 5 enhance the stability and reliability of the side panel fixtures 22 during sliding, making the positioning accuracy of the side panel fixtures 22 more reliable.

[0125] The number of guide rails 5 is not limited, and may be one or more. In an embodiment where there are multiple guide rails 5 , the multiple guide rails 5 are spaced apart and arranged in parallel along the first direction.

[0126] The specific structure of the driving mechanism 24 is not limited.

[0127] In some embodiments, referring to FIG. 2 , the drive mechanism 24 includes a power source, a gear 241, and two racks 242. One rack 242 is connected to one side panel assembly 22, and the other rack 242 is connected to the other side panel assembly 22. The gear 241 meshes with both racks 242. The power source can drive one rack 242 to move back and forth linearly, while one rack 242 drives the other rack 242 to move in the opposite direction via the gear 241. That is, the two racks 242 move in parallel and opposite directions. In this embodiment, the power source can be an air cylinder, an oil cylinder, etc. In other embodiments, the power source can be a motor, which drives the gear 241 to rotate, thereby driving the two racks 242 to move in opposite directions.

[0128] It should be noted that the number of pressurizing mechanisms 2 on a single tray 1 is not limited, and can be one or more.

[0129] For example, there are at least two pressurizing mechanisms 2, and each pressurizing mechanism 2 is arranged side by side in a manner perpendicular to the first direction, that is, each pressurizing mechanism 2 is arranged side by side along the third direction. The side panel tooling 22 of each pressurizing mechanism 2 extends along the first direction.

[0130] Please refer to Figure 2. The pallet device includes at least two synchronization mechanisms 3. A side panel tooling 22 of each pressurizing mechanism 2 on the first side of the side-by-side direction is connected through a part of the synchronization mechanism 3, and another side panel tooling 22 of each pressurizing mechanism 2 on the second side of the side-by-side direction is connected through another part of the synchronization mechanism 3, so that the side panel tooling 22 of each pressurizing mechanism 2 located on the same side of the side-by-side direction moves synchronously and in the same direction with the same displacement.

[0131] The side-by-side direction refers to the direction in which the pressurizing mechanisms 2 are arranged side by side. In the embodiment of the present disclosure, the side-by-side direction is the same as the third direction.

[0132] Among them, one side panel tooling 22 of each pressurizing mechanism 2 on the first side along the side-by-side direction is connected through a part of the synchronization mechanism 3, and another side panel tooling 22 of each pressurizing mechanism 2 on the second side along the side-by-side direction is connected through another part of the synchronization mechanism 3, which means that: the first side and the second side of all pressurizing mechanisms 2 have the same direction, and the first side and the second side are opposite sides along the third direction. For example, please refer to Figure 2. In Figure 2, the direction indicated by the arrow B1 is the first side; the direction indicated by the arrow B2 is the second side. For a single pressurizing mechanism 2, a side panel tooling 22 close to the direction indicated by the arrow B1 is the above-mentioned side panel tooling 22 on the first side along the side-by-side direction, and a side panel tooling 22 close to the direction indicated by the arrow B2 is the above-mentioned other side panel tooling 22 on the second side along the side-by-side direction.

[0133] Taking the case where there are two pressurizing mechanisms 2 as an example, for the convenience of description, one of the pressurizing mechanisms 2 is recorded as the first pressurizing mechanism, and the two side panel toolings 22 of the first pressurizing mechanism are respectively recorded as the first side panel tooling and the second side panel tooling; the other pressurizing mechanism 2 is recorded as the second pressurizing mechanism, and the two side panel toolings 22 of the second pressurizing mechanism are respectively recorded as the third side panel tooling and the fourth side panel tooling.

[0134] Along the parallel direction from B1 to B2, the first side panel tooling, the second side panel tooling, the third side panel tooling, and the fourth side panel tooling are arranged side by side in sequence. Among them, the first side panel tooling is a side panel tooling on the first side of the first pressurizing mechanism along the parallel direction, and the second side panel tooling is another side panel tooling on the second side of the first pressurizing mechanism along the parallel direction. The third side panel tooling is a side panel tooling on the first side of the second pressurizing mechanism along the parallel direction, and the fourth side panel tooling is another side panel tooling on the second side of the second pressurizing mechanism along the parallel direction. The first side panel tooling and the third side panel tooling are connected by the same synchronization mechanism 3, so that the first side panel tooling and the third side panel tooling move synchronously and in the same direction with the same displacement. The second side panel tooling and the fourth side panel tooling are connected by another synchronization mechanism 3, so that the third side panel tooling and the fourth side panel tooling move synchronously and in the same direction with the same displacement.

[0135] It should be noted that when the size of the battery module does not change, the two side plate fixtures 22 of the pressurizing mechanism 2 do not need to be moved or adjusted. If the size of the battery module changes, adjusting the distance between the two side plate fixtures 22 of one pressurizing mechanism 2 can simultaneously adjust the distance between the two side plate fixtures 22 of the other pressurizing mechanisms 2, thereby improving adjustment efficiency.

[0136] The specific structure of the synchronization mechanism 3 is not limited.

[0137] Exemplarily, the synchronization mechanism 3 includes a gas spring. As shown in Figure 2 , the gas spring comprises a cylinder 32 and a piston rod 31. The piston rod 31 is connected to the side plate assembly 22 of one pressurizing mechanism 2, while the cylinder 32 is connected to the side plate assembly 22 of the other pressurizing mechanism 2. The gas spring facilitates stroke adjustment and, even if the gas medium in the gas spring leaks, is unlikely to contaminate the tray 1 or battery module.

[0138] Gas springs can be air springs, nitrogen springs, etc.

[0139] An embodiment of the present disclosure provides a battery production line, comprising a gripping mechanism, a silo device, and a tray device according to any embodiment of the present disclosure.

[0140] The silo device is used to store a plurality of pressurizing members 212. The plurality of pressurizing members 212 may include pressurizing members 212 of different models.

[0141] The gripping mechanism is used to remove the pressure member 212 on the tray device and transfer it to the silo device, and to insert the target pressure member 212 on the silo device into the mounting seat 211 .

[0142] In this embodiment, since the pressure member 212 and the mounting seat 211 are connected by the plug-in fit of the connector 2112 and the plug-in slot 212a, when removing the pressure member 212, it is only necessary to drive the pressure member 212 to move linearly in the opposite direction of the plug-in direction so that the pressure member 212 is separated from the mounting seat 211; when assembling, it is only necessary to drive the pressure member 212 to move linearly in the plug-in direction so that the connector 2112 is inserted into the plug-in slot 212a. The operation is simple and the pressure member 212 can be automatically replaced.

[0143] Exemplarily, the gripping mechanism may be a robotic arm.

[0144] The present disclosure provides a method for replacing a pressure member of a tray device, as shown in FIG10 , including the following steps:

[0145] S1: Clamp the existing pressure member on the tray device and move the existing pressure member upward so that the plug-in slot on the existing pressure member is disengaged from the plug-in member on the mounting seat, or the plug-in member on the pressure member is disengaged from the plug-in slot on the mounting seat.

[0146] S2: Clamp the target pressure piece, move the target pressure piece to the top of the mounting seat, and move the target pressure piece from top to bottom so that the connector on the target pressure piece is inserted into the socket on the mounting seat, or the socket on the target pressure piece is plugged into the connector on the mounting seat.

[0147] The existing pressure piece refers to a pressure piece that is already plugged into the mounting seat in the tray device, and the pressure piece is the pressure piece that needs to be replaced from the tray device.

[0148] The target pressurizing component refers to a pressurizing component that is determined to need to be replaced on the pallet device among multiple pressurizing components placed on the silo device, for example.

[0149] The replacement method of the disclosed embodiment allows for disassembly by simply moving the existing pressurizing member upward a certain distance to disengage it from the mounting base. For assembly, the pressurizing member can be assembled by simply aligning the target pressurizing member's insertion slot or connector with the connector or insertion slot on the mounting base and moving the target pressurizing member downward to insert the connector into the insertion slot. Both disassembly and assembly operations are relatively simple, making pressurizing member replacement convenient.

[0150] It should be noted that in some embodiments, the above-mentioned pressure member can be replaced manually. Specifically, the existing pressure member is directly clamped by hand, or the existing pressure member is clamped with a handheld tool, and then the pressure member is moved upward. After that, the target pressure member is directly clamped by hand, or the target pressure member is clamped with a handheld tool, and the target pressure member is moved downward to insert the connector into the connector slot.

[0151] In other embodiments, the automatic replacement of the pressure member can be achieved by a gripping mechanism. Specifically, the automatic replacement method of the pressure member includes the following steps.

[0152] SB1: Control the gripping mechanism to clamp the existing pressure member on the tray device, and control the gripping mechanism to move upward a preset distance to drive the existing pressure member to separate from the mounting seat.

[0153] SB2: Control the grabbing mechanism to transfer the existing pressurized part after it is separated from the mounting seat to the discharge position of the silo device.

[0154] SB3: Control the grabbing mechanism to grab the target pressurized part on the silo device and transfer the target pressurized part to the top of the mounting seat.

[0155] SB4: Control the grabbing mechanism to move downward to insert the pressurizing piece into the mounting seat.

[0156] After step SB4 is completed, the replacement of the pressurizing member is completed.

[0157] In the description of the present disclosure, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present disclosure. In the present disclosure, 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present disclosure and features of different embodiments or examples without mutual contradiction.

[0158] The foregoing description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A tray device, comprising a tray and at least one pressurizing mechanism arranged on the tray, The pressurizing mechanism includes end plate pressurizing fixtures arranged in pairs, and the end plate pressurizing fixtures arranged in pairs are used to pressurize the battery module along a first direction; At least one of the end plate pressurizing toolings comprises a mounting seat and a pressurizing member, the pressurizing member is used to contact the end plate of the battery module, one of the mounting seat and the pressurizing member is provided with a plug-in slot, and the other is provided with a plug-in member, the plug-in member is plugged into the plug-in slot to detachably mount the pressurizing member to the mounting seat; the plug-in member is plugged into the plug-in slot along the second direction of the tray device, wherein, The second direction is perpendicular to the first direction, and the pressure member can move upward under the action of an external force and be separated from the mounting seat.

2. The tray device according to claim 1, wherein: The mounting seat has a first positioning surface on the side facing the pressure member, and the pressure member has a second positioning surface on the side facing the mounting seat. The first positioning surface and the second positioning surface are both perpendicular to the first direction and contact each other.

3. The tray device according to claim 2, wherein: The mounting seat includes a seat body and the connector, wherein at least a portion of the surface of the seat body on the side facing the pressure member forms the first positioning surface, the connector is connected to the seat body and protrudes from the first positioning surface along the first direction, and the connector groove is arranged on the pressure member.

4. The tray device according to claim 3, wherein: The pressurizing mechanism comprises a first fastener, and the plug-in component and the seat body are detachably connected via the first fastener.

5. The tray device according to claim 4, wherein: The plug connector is provided with a countersunk hole, the first fastener passes through the countersunk hole along the first direction and is screwed into the seat body, and the end cap of the first fastener is located in the countersunk hole.

6. The tray device according to any one of claims 1 to 5, wherein: The pressure member is an integrated structure.

7. The tray device according to any one of claims 1 to 5, wherein: The pressure member includes a connecting block and a pressure block, the connecting block and the pressure block are split structures, and the pressure block is arranged on the side of the connecting block facing the battery module, the pressure block is used to contact the end plate of the battery module, and the plug-in slot or the connector is arranged on the connecting block.

8. The tray device according to claim 7, wherein: The pressure block is a plastic part or a rubber part; and / or the connection block is a metal part.

9. The tray device according to claim 7 or 8, wherein: The pressurizing mechanism comprises a second fastener, and the pressurizing block and the connecting block are detachably connected via the second fastener.

10. The tray device according to claim 7, wherein: The connecting block is provided with a groove, and the pressure member includes a limit block. The limit block and the connecting block are split structures. The limit block is arranged at the edge of the groove and defines the plug-in slot together with the groove.

11. The tray device according to claim 10, wherein: A recessed area is provided on the side of the connection block facing the mounting seat, and the limit block is provided in the recessed area. The limit block does not protrude from the surface of the connection block facing the mounting seat.

12. The tray device according to claim 11, wherein: The pressurizing member includes a third fastener, and the connecting block and the limiting block are detachably connected via the third fastener.

13. The tray device according to any one of claims 1 to 12, wherein: The pressurizing mechanism includes a driving mechanism and a pair of side panel fixtures, wherein the pair of side panel fixtures are used to carry the battery module, and the driving mechanism is used to drive the side panel fixtures to move away from or towards each other to adjust the distance between the two side panel fixtures.

14. The tray device according to claim 13, wherein: The tray device comprises a guide rail, which is arranged on the tray. The guide rail is slidably matched with the paired side panel toolings to guide the side panel toolings for sliding.

15. The tray device according to claim 13 or 14, wherein: The driving mechanism includes a power source, a gear and two racks, wherein one of the racks is connected to one of the side plate fixtures, the other rack is connected to the other side plate fixture, and the gear is meshed with the two racks at the same time; The power source is used to drive one of the racks to move linearly back and forth, and the one rack drives the other rack to move in the opposite direction via the gear; or, the power source is used to drive the gear to rotate, thereby driving the two racks to move in the opposite direction via the gear.

16. The tray device according to any one of claims 1 to 15, wherein: The number of the pressurizing mechanisms is at least two, and each of the pressurizing mechanisms is arranged side by side in a manner perpendicular to the first direction; a single pressurizing mechanism includes a pair of side plate fixtures, and the pair of side plate fixtures are used to carry the battery module; The pallet device includes at least two synchronization mechanisms, and the side panel tooling of each of the pressurizing mechanisms on the first side of the side-by-side direction is connected via a part of the synchronization mechanisms, and the side panel tooling of each of the pressurizing mechanisms on the second side of the side-by-side direction is connected via another part of the synchronization mechanisms, so that the side panel tooling of each of the pressurizing mechanisms on the same side of the side-by-side direction moves synchronously and in the same direction with the same displacement.

17. The tray device according to claim 16, wherein: The synchronization mechanism includes a gas spring, and the gas spring includes a cylinder and a piston rod. The piston rod is connected to the side plate tooling of one of the pressurizing mechanisms, and the cylinder is connected to the side plate tooling of the other pressurizing mechanism.

18. A battery production line, comprising a gripping mechanism, a silo device and a tray device as described in any one of claims 1 to 17, wherein the silo device is used to store a plurality of pressurized parts, the gripping mechanism is used to remove the pressurized parts on the tray device and transfer them to the silo device, and to insert the target pressurized parts on the silo device into the mounting seat.

19. A method for replacing a pressure member of a tray device, comprising: Clamping the existing pressure member on the tray device, and moving the existing pressure member upward, so that the plug-in slot on the existing pressure member is separated from the plug-in member on the mounting seat, or the plug-in member on the pressure member is separated from the plug-in slot on the mounting seat; Clamp the target pressurizing part, move the target pressurizing part to the top of the mounting seat, and move the target pressurizing part from top to bottom so that the connector on the target pressurizing part is inserted into the connector slot on the mounting seat, or the connector slot on the target pressurizing part is plugged into the connector on the mounting seat.

20. A method for replacing a pressure member of a tray device, comprising: Controlling the gripping mechanism to clamp the existing pressure-applying member on the tray device, and controlling the gripping mechanism to move upward by a preset distance to drive the existing pressure-applying member to separate from the mounting seat; Control the grabbing mechanism to transfer the existing pressurized part after it is separated from the mounting seat to the discharge position of the silo device; Controlling the grabbing mechanism to grab the target pressurized component on the silo device and transfer the target pressurized component to above the mounting seat; The grabbing mechanism is controlled to move downward to insert the pressurizing member onto the mounting seat.

Images