Packaging device

Abstract

The utility model belongs to the technical field of battery module packaging, and discloses a packaging device. The packaging device comprises a surrounding plate, a bottom support, a top cover and a lining plate, the surrounding plate is of a barrel-shaped structure with the upper portion and the lower portion open, the bottom support detachably covers a bottom opening of the surrounding plate, the top cover detachably covers a top opening of the surrounding plate, and a containing groove is formed in the upper surface of the lining plate and used for containing a part to be packaged. And a plurality of inner lining plates are stacked in the coaming in the vertical direction. Through the above arrangement, the packaging process can be simplified, and the packaging efficiency is improved. During unpacking, the situation that packing belts and wrapping films on each packing box need to be dismantled repeatedly through manpower can be avoided, time and manpower are saved, and the working efficiency is effectively improved. In addition, due to the fact that the bottom support, the surrounding plate and the top cover are connected in a detachable mode, the packaging device further has the advantage of being capable of being recycled, and material consumption and transportation cost are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module packaging, in particular to a packaging device. Background Art

[0002] The battery module is an important component of the new energy industry. During the process from production to assembly, it needs to be transported, and a battery module packaging box is required to protect the battery module during transportation to avoid damage.

[0003] Currently, the relatively common battery module packaging on the market is to put the battery module into a cardboard box, seal it with tape, then stack the cardboard boxes neatly on a packaging pallet, install corner guards on the four sides of the packaging, and wrap the packaging around the four sides and the top with stretch film. Such a packaging method has the following problems: the packaging process is complex with many procedures. Before use, it is necessary to manually remove the packing straps on the cardboard boxes layer by layer, which is time-consuming and laborious. Moreover, the cardboard boxes after removal cannot be recycled, resulting in high consumable costs.

[0004] Based on this, there is an urgent need for a packaging device to solve the problems existing in the prior art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a packaging device, which can simplify the packaging and unpacking procedures, save time and labor costs, improve work efficiency, and reduce consumable costs.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The packaging device includes a surrounding plate, a bottom tray, a top cover, and an inner lining plate. The surrounding plate is in a cylindrical structure open at the top and bottom. The bottom tray is detachably covered on the bottom opening of the surrounding plate, the top cover is detachably covered on the top opening of the surrounding plate. The upper surface of the inner lining plate is provided with a receiving groove for placing the item to be packaged, and a plurality of the inner lining plates are stacked vertically inside the surrounding plate.

[0008] Preferably, along a preset direction, the opposite two side walls of the receiving groove are provided with grasping avoidance grooves penetrating through.

[0009] Preferably, the inner lining plate includes a first lining plate. A plurality of the first lining plates are stacked vertically inside the surrounding plate. The upper surface of the first lining plate is provided with the receiving groove, and the lower surface of the first lining plate is provided with a protruding portion. Among the two vertically adjacent stacked first lining plates, the protruding portion of the upper first lining plate can be inserted into the grasping avoidance groove of the lower first lining plate for limiting.

[0010] Preferably, the inner lining plate further includes two second lining plates. One of the second lining plates is clamped between the bottom support and the first lining plate at the bottom, and the receiving groove is provided on the surface facing the first lining plate. The other second lining plate is clamped between the top cover and the first lining plate at the top, and the receiving groove is provided on the surface facing the first lining plate.

[0011] Preferably, an avoidance groove is further opened at the bottom of the inner lining plate. Between adjacent two inner lining plates, the avoidance grooves are arranged opposite to the receiving grooves one by one, and the avoidance grooves can cooperate with the receiving grooves to wrap the battery module together.

[0012] Preferably, one limiting block is respectively convexly provided on two inner side walls of the avoidance groove located on the same end face. The bottom surface of the limiting block is arranged opposite to the top surface of the end plate of the battery module. When adjacent two inner lining plates are stacked, the limiting block abuts against and connects to the end plate of the battery module.

[0013] Preferably, a surrounding edge structure is arranged along the circumference on the outer edge of the bottom support, and the inner side wall of the surrounding edge structure is attached and connected to the outer peripheral surface of the surrounding plate.

[0014] Preferably, a baffle structure is arranged along the circumference on the outer edge of the top cover, and the inner side wall of the baffle structure is attached and connected to the outer peripheral surface of the surrounding plate.

[0015] Preferably, a top lining plate is clamped between the top cover and the inner lining plate, and the top lining plate covers the receiving groove.

[0016] Preferably, along the vertical direction, a positioning block and a card slot are respectively arranged on two opposite surfaces of the inner lining plate. Among two vertically adjacent stacked inner lining plates, the positioning block of the upper inner lining plate can be limited and inserted into the card slot of the lower inner lining plate.

[0017] Preferably, a groove is opened on the inner lining plate, and a desiccant is arranged in the groove.

[0018] Preferably, a notch is opened at the top of the side wall of the receiving groove, so that adjacent two receiving grooves can be communicated with each other through the notch, and the groove is opened on the inner wall of the notch groove.

[0019] Preferably, the inner lining plate has a first corner angle, the surrounding plate has a second corner angle, and a protection plate is clamped between the first corner angle and the second corner angle.

[0020] Preferably, a relief groove is further arranged at the end of the inner lining plate.

[0021] Advantages of the present utility model: When encapsulating, this packaging device only requires one process of packing belt encapsulation and one process of winding film winding. Compared with the existing method of encapsulating and winding multiple packaging boxes and then stacking them, the encapsulation process is greatly simplified and the encapsulation efficiency is improved. Moreover, when unpacking, this packaging device only requires one-time manual assistance to remove the packing belt and winding film, and then a manipulator can be used to disassemble each inner lining board without further manual disassembly, thus avoiding the situation of repeatedly using manpower to remove the packing belt and winding film on each packaging box, saving time and manpower, and effectively improving work efficiency. In addition, since the bottom tray, the side panels, and the top cover are connected in a detachable manner, this packaging device also has the advantage of recyclability, thus greatly reducing the consumable materials and transportation costs. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the packaging device provided by the present utility model;

[0023] Figure 2 is a schematic structural diagram of the packaging device provided in the first embodiment of the present utility model with the side panels hidden;

[0024] Figure 3 is a partial structural explosion diagram of the packaging device provided in the first embodiment of the present utility model;

[0025] Figure 4 is a schematic structural diagram of the inner lining board provided in the first embodiment of the present utility model from the first perspective;

[0026] Figure 5 is a schematic structural diagram of the inner lining board provided in the first embodiment of the present utility model from the second perspective;

[0027] Figure 6 is a schematic structural diagram of the packaging device provided in the second embodiment of the present utility model with the side panels hidden;

[0028] Figure 7 is a partial structural explosion diagram of the packaging device provided in the second embodiment of the present utility model;

[0029] Figure 8 is a schematic structural diagram of the first lining board provided in the second embodiment of the present utility model from the first perspective;

[0030] Figure 9 is a schematic structural diagram of the first lining board provided in the second embodiment of the present utility model from the second perspective;

[0031] Figure 10 is a top view of the first lining board provided in the second embodiment of the present utility model;

[0032] Figure 11 is Figure 10 a schematic structural view after a sectional view along the A-A direction;

[0033] Figure 12 is a schematic structural view of the second lining plate provided in the second embodiment of the present invention.

[0034] In the figure:

[0035] 1. Side plate; 11. Second corner; 2. Bottom support; 21. Perimeter structure; 22. Support frame; 221. Handling groove; 3. Top cover; 31. Edge blocking structure; 4. Inner lining plate; 401. Accommodating groove; 4011. Notch groove; 402. Grabbing avoidance groove; 403. Groove; 404. Positioning block; 405. Card slot; 406. First corner; 407. Relief groove; 41. First lining plate; 411. Protrusion; 412. Avoidance groove; 413. Limit block; 42. Second lining plate; 5. Top lining plate; 6. Protection plate. Detailed implementation manners

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0037] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0038] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0039] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] The following will specifically introduce the technical solution provided by the present utility model in conjunction with the attached Figure 1 to the attached Figure 12 and two embodiments.

[0041] Embodiment 1

[0042] This embodiment provides a packaging device that can pack and encapsulate the items to be packaged, facilitating the handling and transportation of the items to be packaged. When the item to be packaged is a battery module, compared with the existing packaging box, this packaging device can cooperate with the manipulator in the battery module loading process in the automated production line to automatically transport the battery module to the production line and cooperate with PACK for assembly, reducing human intervention, thereby effectively improving work efficiency.

[0043] Specifically, as shown in Figures 1 to 4 , this packaging device includes a surrounding plate 1, a bottom tray 2, a top cover 3, and an inner lining plate 4. Among them, the surrounding plate 1 is in a cylindrical structure that is open at the top and bottom. The bottom tray 2 is detachably covered on the bottom opening of the surrounding plate 1, and the top cover 3 is detachably covered on the top opening of the surrounding plate 1. The upper surface of the inner lining plate 4 is provided with a receiving groove 401, and a battery module is placed in the receiving groove 401. And a plurality of inner lining plates 4 are stacked vertically inside the surrounding plate 1.

[0044] Exemplarily, when the above packaging device encapsulates the battery module, it encapsulates a plurality of inner lining plates 4 through the surrounding plate 1, the bottom tray 2, and the top cover 3, and then uses packing straps and stretch film to pack and fix the packaging device, thus completing the encapsulation process of a plurality of battery modules. When the packaging device is in use, first move it to the designated position, then the staff removes the packing straps and stretch film, and then the manipulator can automatically remove the top cover 3 and the surrounding plate 1 to expose the stacked plurality of inner lining plates 4. For example, in this embodiment, as shown in Figures 2 to 4 , there are 5 inner lining plates 4 stacked from top to bottom, and 5 receiving grooves 401 are arranged in each inner lining plate 4. After the manipulator automatically transports all 5 battery modules in the upper inner lining plate 4 to the production line, it removes the upper inner lining plate 4 to expose the 5 battery modules on the lower inner lining plate 4, and so on, until all the battery modules on all the inner lining plates 4 are transported to the production line.

[0045] With the above settings, when the packaging device is encapsulating, it only requires one process of packing belt encapsulation and one process of winding film winding. Compared with the existing method of encapsulating and winding multiple packaging boxes and then stacking them, the encapsulation process is greatly simplified and the encapsulation efficiency is improved. Moreover, when unpacking the packaging device, only one-time human labor is required to remove the packing belt and winding film, and the subsequent process can be fully automated with the cooperation of a manipulator to disassemble the inner lining board, thus avoiding the situation of repeatedly relying on human labor to remove the packing belt and winding film on each packaging box, saving time and labor, and effectively improving work efficiency.

[0046] It should also be added that since the bottom tray 2, the side panel 1, and the top cover 3 are connected in a detachable manner, this packaging device also has the advantage of being recyclable, thus greatly reducing the consumables and transportation costs.

[0047] Furthermore, in this embodiment, referring to Figure 4 As shown, along the preset direction, that is, along the arrangement direction of the single cells in the battery module, the opposite two side walls of the receiving groove 401 are provided with grasping avoidance grooves 402 through which the manipulator can pass to contact the battery module located inside the receiving groove 401. In this way, while placing the battery module deeper in the receiving groove 401 to improve the transportation stability of the battery module, the manipulator can also pass through the avoidance groove to reach the grasping position on the battery module and stably transport the battery module to the production line.

[0048] In this embodiment, the side panel 1 is made of paper material, which not only reduces the weight of the entire packaging device, facilitating the handling and transportation of the entire packaging device, but also is more economical and environmentally friendly.

[0049] Optionally, in this embodiment, a top lining board 5 is further interposed between the top cover 3 and the inner lining board 4. The surface of the top lining board 5 can cover and block the receiving groove 401 on the inner lining board 4, and the top lining board 5 can also be made of elastic buffer material, which can not only prevent the battery module from contacting external impurities, but also isolate the battery module from the top cover 3, preventing the top cover 3 from directly contacting the battery module during handling and causing damage to the battery module, thereby improving the safety of the battery module during handling.

[0050] Specifically, continuing to refer to Figure 3 As shown, a peripheral edge structure 21 is provided along the circumferential direction of the outer edge of the bottom tray 2. The inner side wall of the peripheral edge structure 21 is attached to the outer peripheral surface of the side panel 1. The peripheral edge structure 21 can limit the movement or shaking of the side panel 1, thereby improving the stability and safety of the entire packaging device during handling.

[0051] More specifically, three support frames 22 are arranged in parallel at the bottom of the bottom tray 2. A plurality of handling grooves 221 are formed in the support frames 22. The handling grooves 221 provide additional support points, so that the packaging device can be lifted more conveniently.

[0052] Combined with Figures 1 to 4 As shown, the horizontal cross-sections of the pallet, the side panel 1, the top cover 3 and the inner lining plate 4 provided in this embodiment are all square shapes, and the inner lining plate 4 has four first corners 406, and the side panel 1 has four second corners 11. After covering the side panel 1 outside the inner lining plate 4, a protection plate 6 is also clamped between the first corner 406 and the second corner 11. The protection plate 6 can be a foam plate, a plastic plate or a rubber plate, and this embodiment does not limit this. By providing the protection plate 6, the edge of the inner lining plate 4 can be protected, the packaging strength can be enhanced, the possibility of damage and deformation of the inner lining plate 4 and the side panel 1 is reduced, and it is ensured that the packaging device can be recycled.

[0053] Specifically, a rib structure 31 is arranged along the circumferential direction on the outer edge of the top cover 3. The inner side wall of the rib structure 31 is attached to the outer peripheral surface of the side panel 1. Both the bottom tray 2 and the top cover 3 can be connected to the side panel 1 by enclosing, so as to effectively prevent the side panel 1 from being distorted and deformed from both ends during handling, making the whole packaging device more firm and reliable.

[0054] Optionally, in this embodiment, a plurality of grooves 403 are also formed in the inner lining plate 4. Desiccant types such as silica gel desiccant, molecular sieve desiccant or calcium chloride desiccant are arranged in the grooves 403 to adsorb moisture in the packaging device and provide a safe dry environment for the transportation of the battery module.

[0055] Further, a notch groove 4011 is recessed downward at the top of the side wall of the receiving groove 401 of the inner lining plate 4. After two adjacent inner lining plates 4 are stacked, the two adjacent receiving grooves 401 on the same inner lining plate 4 can be communicated with each other through the notch groove 4011. The bottom wall of the notch groove 4011 is provided with the above-mentioned groove 403. In this way, the battery modules in the two receiving grooves 401 can be dried simultaneously by the desiccant in one groove 403, thereby reducing the usage amount of the desiccant and saving costs.

[0056] It should be noted that the present invention does not limit the number of notch grooves 4011 formed on the side wall of a single receiving groove 401, nor does it limit whether all the notch grooves 4011 have the above-mentioned groove 403, as long as it can ensure that while effectively controlling the usage cost of the desiccant, the purpose of drying all the receiving grooves on the same inner lining plate 4 simultaneously can be achieved.

[0057] Optionally, positioning blocks 404 are convexly provided on the upper surface of the inner lining plate 4, and clamping grooves 405 are convexly provided on the lower surface of the inner lining plate 4. In this embodiment, referring toFigure 5 As shown, at the edges of the upper surface of the inner lining plate 4 at opposite ends, two positioning blocks 404 are respectively arranged at intervals. Correspondingly, at the edges of the lower surface of the inner lining plate 4 at opposite ends, two slots 405 are respectively arranged at intervals. Through the above arrangement, during the stacking process of multiple inner lining plates 4 by the staff, it can be judged whether the adjacent inner lining plates 4 are correctly positioned and aligned by observing whether the positioning blocks 404 on the lower inner lining plate 4 are inserted into the corresponding slots 405 on the upper inner lining plate 4, thereby ensuring the stability of the fitting connection between the multiple inner lining plates 4.

[0058] Optionally, relief grooves 407 are also arranged at both end faces of the inner lining plate 4 to facilitate the manipulator to clamp the inner lining plate 4 in the relief grooves 407 for handling and prevent the manipulator from slipping, ensuring the stability and reliability during the automatic handling process.

[0059] Embodiment 2

[0060] Combined with Figures 6 to 12 As shown, this embodiment provides a packaging device, and the structure of this packaging device is substantially the same as that of the packaging device in Embodiment 1, the difference being:

[0061] In this embodiment, combined with Figure 8 、 Figure 12 As shown, the inner lining plate 4 includes a plurality of first lining plates 41. A plurality of first lining plates 41 are stacked vertically along the inner edge of the surrounding plate 1. A receiving groove 401 is formed on the upper surface of the first lining plate 41, and grasping avoidance grooves 402 are formed on both opposite side walls of the receiving groove 401. And as Figure 8 As shown, a protruding portion 411 is arranged on the lower surface of the first lining plate 41. The protruding portion 411 of the upper first lining plate 41 is arranged opposite to the grasping avoidance groove 402 of the lower first lining plate 41. In a biting connection manner where the protruding portion 411 is limited and inserted into the grasping avoidance groove 402, the positioning installation of two adjacent first lining plates 41 is completed, thereby improving the connection stability, preventing the first lining plate 41 from moving during handling, and also being able to determine whether the assembly of each layer is in place, avoiding the situation that the packaging device is damaged due to continued loading and unloading when the assembly is not in place.

[0062] More specifically, in this embodiment, the inner lining plate 4 further includes two second lining plates 42. One of the second lining plates 42 is clamped between the bottom support 2 and the first lining plate 41 at the bottom, and a receiving groove 401 is formed on the surface facing the first lining plate 41. The other second lining plate 42 is clamped between the top cover 3 and the first lining plate 41 at the top, and a receiving groove 401 is formed on the surface facing the first lining plate 41. It can be understood that grasping avoidance grooves 402 are also formed on the two second lining plates 42. In this way, the top and bottom of the entire inner lining plate 4 can be tightly attached to and connected with the top cover 3 and the bottom support 2 respectively through the flat surfaces on the two second lining plates 42, increasing the contact area between the inner lining plate 4 and the top cover 3 and the bottom support 2, thereby reducing the pressure of the inner lining plate 4 on the top cover 3 and the bottom support 2, and further reducing the damage to the top cover 3 and the bottom support 2.

[0063] It should be noted that in this embodiment, the two second lining plates 42 have the same structure, and the second lining plate 42 located above is lapped on the first lining plate 41 at the top in an inverted form. The receiving groove 401 in the second lining plate 42 and the receiving groove of the first lining plate 41 below jointly enclose a space that can wrap the battery module. Through the above settings, on the one hand, the present utility model does not need to additionally add a set of molds. The second lining plate 42 located above is designed and manufactured to have a structure that can be inserted into the first lining plate 41, so that the process of manufacturing the two second lining plates 42 using two sets of molds can be omitted; on the other hand, since the upper surface of the second lining plate 42 is flat, it can replace the function of the top lining plate 5, enabling the entire inner lining plate 4 to be attached and connected with the top cover 3 through the top of the second lining plate 42 located above, thereby omitting the setting of the top lining plate 5 in the first embodiment, and further reducing the production and manufacturing cost of the entire packaging device.

[0064] Optionally, in this embodiment, in combination with Figure 9 、 Figure 11 As shown, a plurality of avoidance grooves 412 are formed inward on the bottom surface of the first lining plate 41. The avoidance grooves 412 are arranged in one-to-one correspondence with the receiving grooves 401, and the horizontal cross-sectional dimensions of the avoidance grooves 412 are the same as those of the receiving grooves 401. When the overall height of the battery module is relatively high and the receiving grooves 401 cannot completely wrap the battery module, the avoidance grooves 412 can avoid the exposed part of the battery module and wrap the exposed part of the battery module, thereby ensuring that the two adjacent first lining plates 41 and the first lining plate 41 and the second lining plate 42 can be tightly attached and connected, and further enhancing the connection stability of the entire packaging device.

[0065] Furthermore, referring to Figure 11As shown in the figure, in this embodiment, two inner side walls of the avoidance groove 412 located on the same end face are respectively convexly provided with a limiting block 413, and the bottom surfaces of the limiting blocks 413 are oppositely arranged on the top surface of the end plate of the battery module. Through the above arrangement, after the first lining plate 41 located on the upper layer is stacked on the first lining plate 41 located on the lower layer, the two limiting blocks 413 in the avoidance groove 412 can simultaneously abut against both ends of the top surface of the end plate of the battery module, thereby tightly clamping the battery module between the two first lining plates 41, avoiding the situation of vibration and jumping of the battery module.

[0066] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A packaging device, characterized in that: The invention comprises a surrounding plate (1), a bottom support (2), a top cover (3) and an inner lining plate (4); the surrounding plate (1) is a cylindrical structure which is open at the top and the bottom; the bottom support (2) is detachably covered on the bottom opening of the surrounding plate (1); the top cover (3) is detachably covered on the top opening of the surrounding plate (1); a receiving groove (401) is provided on the upper surface of the inner lining plate (4); the receiving groove (401) is used for placing items to be packaged; and a plurality of the inner lining plates (4) are stacked in the vertical direction in the surrounding plate (1).

2. The packaging device according to claim 1, characterized in that: Along a preset direction, two opposite side walls of the accommodating groove (401) are penetrated by gripping avoidance grooves (402).

3. The packaging device according to claim 2, characterized in that: The inner lining plate (4) comprises a first lining plate (41), and a plurality of the first lining plates (41) are stacked in the vertical direction in the enclosure (1), the upper surface of the first lining plate (41) is provided with the accommodating groove (401), and the lower surface of the first lining plate (41) is provided with a protrusion (411), and in two first lining plates (41) stacked adjacent to each other in the vertical direction, the protrusion (411) of the first lining plate (41) located above can be limitedly inserted into the grabbing avoidance groove (402) of the first lining plate (41) located below.

4. The packaging device according to claim 3, characterized in that: The inner lining plate also includes two second lining plates (42), one of which is sandwiched between the base (2) and the first lining plate (41) located at the bottom, and is provided with the receiving groove (401) on the surface facing the first lining plate (41), and the other is sandwiched between the top cover (3) and the first lining plate (41) located at the top, and is provided with the receiving groove (401) on the surface facing the first lining plate (41).

5. The packaging device according to any one of claims 1 to 4, characterized in that: The bottom of the inner lining plate (4) is also provided with a avoidance groove (412), and between two adjacent inner lining plates (4), the avoidance grooves (412) are arranged one by one relative to the accommodating groove (401), and the avoidance grooves (412) can cooperate with the accommodating groove (401) to wrap the battery module.

6. The packaging device according to claim 5, characterized in that: A stop block (413) is protruded from each of the two inner side walls located on the same end face of the avoidance groove (412); the bottom surface of the stop block (413) is arranged relative to the top surface of the end plate of the battery module; when two adjacent inner lining plates (4) are stacked, the stop block (413) is abutted and connected to the end plate of the battery module.

7. The packaging device according to any one of claims 1 to 4, characterized in that: The outer edge of the base (2) is provided with a surrounding structure (21) along the circumferential direction, and the inner side wall of the surrounding structure (21) is closely connected to the outer peripheral surface of the enclosure plate (1).

8. The packaging device according to any one of claims 1 to 4, characterized in that: The outer edge of the top cover (3) is provided with a retaining edge structure (31) along the circumferential direction, and the inner side wall of the retaining edge structure (31) is closely connected to the outer peripheral surface of the enclosure plate (1).

9. The packaging device according to any one of claims 1 to 4, characterized in that: A top lining plate (5) is sandwiched between the top cover (3) and the inner lining plate (4), and the top lining plate (5) is arranged to cover the accommodating groove (401).

10. The packaging device according to any one of claims 1 to 4, characterized in that: In the vertical direction, two opposite surfaces of the inner lining plate (4) are also provided with positioning blocks (404) and card slots (405) respectively; in two inner lining plates (4) stacked adjacent to each other in the vertical direction, the positioning block (404) of the inner lining plate (4) located at the upper side can be inserted into the card slot (405) of the inner lining plate (4) located at the lower side in a limited manner.

11. The packaging device according to any one of claims 1 to 4, characterized in that: The inner lining plate (4) is provided with a groove (403), and a desiccant is arranged in the groove (403).

12. The packaging device according to claim 11, characterized in that: A notch groove (4011) is provided at the top of the side wall of the receiving groove (401), so that two adjacent receiving grooves (401) can be connected to each other through the notch groove (4011), and the groove (403) is provided on the inner wall of the notch groove (4011).

13. The packaging device according to any one of claims 1 to 4, characterized in that: The inner lining plate (4) has a first corner (406), the enclosure plate (1) has a second corner (11), and a guard plate (6) is sandwiched between the first corner (406) and the second corner (11).

14. The packaging device according to any one of claims 1 to 4, characterized in that: The end of the inner lining plate (4) is also provided with a clearance groove (407).

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