Power battery packaging device

Abstract

The invention relates to a power battery transporting and packaging device which comprises a fixing frame, sheet metal parts, a buffering cushion layer, a power battery clamp and a WDI circuit controller, the sheet metal parts are divided into front axle parts and rear axle parts, one front axle part and one rear axle part are used in cooperation to form a set of sheet metal parts, and each set of sheet metal parts fixes one power battery; a power battery is fixed between a front axle piece and a rear axle piece in the sheet metal part through a power battery clamp, and a buffering cushion layer is connected with the sheet metal part in an adhesive mode. A user can replace the shape thickness and the forming process of the buffer cushion layer according to actual use requirements so as to meet the requirements of the power battery on heat dissipation, noise reduction, shock prevention and buffering in the transportation process, and meanwhile, various power batteries with different sizes can be loaded in the fixing frame; the method has the effects of improving the transportation safety of the power battery and reducing the transportation cost of the power battery.

Description

Technical Field

[0001] The present invention relates to the field of transport packaging devices, and in particular to a power battery packaging device. Background Art

[0002] The application scenarios of power batteries involve many fields such as new energy vehicles, new energy storage, mobile communications, unmanned equipment, etc. Therefore, the types of power batteries are also complicated. Since different types of power batteries have different manufacturers, production areas, and production cycles, and the transportation of power batteries is classified as dangerous goods, long-distance transportation of power batteries usually requires special vehicles, special times, and special models, and the transportation cost remains high.

[0003] Related technology can refer to the Chinese patent with announcement number CN108995976A, which discloses a power battery packaging box with a protective function, including a packaging box body, a slider is provided at the bottom of the inner wall of the packaging box body, and the number of slide grooves is two, the inner wall of the slide groove is movably connected to the surface of the slider, and the opposite surfaces of the two sliders are provided with slots, and the divergent surfaces of the two sliders are respectively fixedly connected with a return spring and a hinge seat, and the hinge seat is located above the return spring, and the two return springs are respectively fixedly connected to the left and right sides of the inner wall of the packaging box body, the hinge seat is movably connected to one end of the connecting rod through a pin shaft, and the other end of the connecting rod is movably connected to the end of the movable rod away from the slider through a movable shaft.

[0004] With respect to the above-mentioned related technologies, the power battery packaging box solves the problem that the protection effect of the single-layer paper packaging boxes for power batteries on the current market is extremely limited and the problem that the power batteries are easily damaged by collisions during transportation by setting sliders, return springs, fixed plates, fixed rods and card blocks. However, in the above-mentioned related technologies, the packaging box and the sliders, return springs, fixed plates, fixed rods and card blocks in the packaging box are all non-standard designs, with high design and production costs, and the sizes of power batteries that can be adapted to the same type of packaging box must be limited to a certain range. Power batteries that are not within the size adaptation range require other types of packaging boxes. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a power battery packaging device that has both protective functions and solves the problems of complex structure of the packaging device, insufficient applicability of the packaging device to power battery sizes, and high production costs.

[0006] (II) Technical solution In view of the deficiencies of the prior art, the present invention provides the following technical solutions: a transport packaging device for a power battery, comprising a fixing frame, characterized in that it also comprises a sheet metal part, a buffer layer, a power battery clamp, and a WDI circuit controller, wherein the sheet metal part is divided into a front bridge part and a rear bridge part, a front bridge part and a rear bridge part are used together to form a set of sheet metal parts, each set of sheet metal parts fixes a power battery, the buffer layer is divided into a front buffer layer and a rear buffer layer, the power battery clamp is divided into a power battery upper clamp and a power battery lower clamp, and the front bridge part is provided with a plurality of A front buffer layer and an upper clamp for the power battery, a rear buffer layer and a lower clamp for the power battery are respectively arranged on one side of the rear axle component for clamping the power battery, the front axle component includes a mounting slot and a preparatory plate, a mounting slot for installing the WDI circuit controller is arranged on the outer side of the front axle component, the WDI circuit controller is installed on the preparatory plate, the preparatory plate is connected to the mounting slot through a tenon structure, the front axle component is provided with an opening on one side of the mounting slot position, the opening corresponds to the power supply and electrical signal interface position of the power battery, a plurality of through holes are arranged on one side in the length direction of the front axle component, and the front axle component is detachably connected to the fixed frame of the transport vehicle through the through holes.

[0007] By adopting the above technical scheme, the front axle parts and the rear axle parts in the sheet metal parts fix the power battery between the two through the power battery clamp, and the buffer layer is connected to the sheet metal parts by gluing. The user can replace the shape, thickness and molding process of the buffer layer according to actual use requirements to meet the power battery's requirements for heat dissipation, noise reduction, shockproof and buffering during transportation. The fit between the sheet metal parts and the power battery clamp and the fit between the power battery clamp and the power battery are both interference fits. The user can design the power battery clamp according to the geometric characteristics of the power battery to be clamped to meet the user's needs. The connection between the WDI circuit controller and the sheet metal parts is a detachable connection. The front axle parts meet the need for charging the power battery during transportation by leaving an opening. The front axle parts are connected to the transport vehicle fixing frame by bolts to improve the safety of power battery transportation.

[0008] Optionally, the front bridge member is made of spring steel, a handle is provided on the side of the front bridge member away from the power battery, the front bridge member is adhesively connected to the front buffer layer, through holes are provided on the front bridge member, which correspond to the number and positions of the threaded holes on the load frame, the rear bridge member is adhesively connected to the rear buffer layer, and a fixed slot is provided on the side of the rear bridge member away from the power battery, and the rear bridge member is clamped on the fixed frame through the fixed slot.

[0009] By adopting the above technical scheme, the spring steel used in the front axle component has excellent elastic modulus and bending modulus to resist shaking and vibration that may occur during transportation due to unknown transportation road conditions, thereby protecting the battery from bumps. The handle provided on the front axle component is conducive to transportation and loading and unloading. The rear axle component is clamped on the fixed frame by a fixed slot to limit the degree of freedom of the rear axle component to 1, which is conducive to the loading and unloading operations of the power battery.

[0010] Optionally, the buffer layer is made of EPP material, and there is only contact but no connection between the buffer layer and the power battery clamp.

[0011] By adopting the above technical solution, the cushion layer is made of EPP material. Since the EPP material of the cushion layer is easy to disassemble and discard, the molding process can be adjusted according to the size and weight of the transported power battery and other related requirements to meet the requirements of heat dissipation, noise reduction, and cushioning in transportation. There is no connection between the cushion layer and the power battery fixture. When the power battery fixture is connected to the sheet metal, the positional relationship between the power battery fixture and the cushion layer is contact.

[0012] Optionally, the power battery clamp is made of EPP material, the upper power battery clamp is connected to the front axle member by a tenon connection, and the lower power battery clamp is connected to the rear axle member by a tenon connection.

[0013] By adopting the above technical scheme, the power battery clamp usually adopts the injection molding process to meet the requirements of the power battery clamp on the mechanical properties. The shape design of the power battery clamp is adjusted according to the appearance shape of the transported power battery, with the purpose of clamping the power battery. The tenon connection between the power battery clamp and the front axle and rear axle parts is an interference fit, with the purpose of ensuring the stable fit between the power battery clamp and the front axle and rear axle parts.

[0014] Optionally, the upper power battery clamp is connected to the power battery via a slot, and the lower power battery clamp is connected to the power battery via a slot.

[0015] By adopting the above technical solution, the slot connection between the power battery clamp and the power battery is an interference fit, and the power battery clamp needs to be chamfered at the edge of the slot to facilitate the insertion of the power battery into the slot.

[0016] Optionally, the WDI circuit controller is connected to the preparatory plate by any one of tenon, bolt, gluing and adsorption, and the preparatory plate is connected to the mounting slot by a tenon.

[0017] By adopting the above technical solution, the WDI circuit controller is selected according to the type of power battery, the power battery transportation specifications and the dangerous goods transportation requirements. The preparation plate needs to be designed in a universal way to adapt to different WDI circuit controllers. The connection between the preparation plate and the mounting slot is an interference fit, which is conducive to ensuring stability during transportation.

[0018] Optionally, the fixing frame includes a mounting frame and a load frame, the mounting frame and the load frame are connected by bolt connection, the load frame is fixed inside the transport equipment through the mounting frame, the load frame is used to fix sheet metal parts, a plurality of connection holes are provided on the load frame, the connection holes at different positions are selected according to the size of the power battery, and the mounting frame is fixed to the transport equipment by threaded connection.

[0019] By adopting the above technical solution, when transporting the same batch of power batteries containing different models, the boundary of the load rack is determined by the loading position and size of the power batteries, which is beneficial for the user to adjust the order of loading the power batteries and improve the utilization rate of the loading space.

[0020] Optionally, the load rack is a multi-layer structure, and a single-layer load rack arranges and fixes multiple sets of sheet metal parts, with a gap left between two adjacent sheet metal parts.

[0021] By adopting the above technical solution, when encountering bumps, shaking, vibrations or accidents during transportation, the gaps between adjacent sheet metal parts are helpful to ensure that the power batteries do not collide with each other.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The sheet metal parts, the buffer cushion layer, and the power battery clamp constitute a basic unit for clamping the power battery, and cooperate with the fixing frame and the load frame to form a power battery packaging device. The main connection methods in the packaging device are gluing, mortise and tenon connection, and bolt connection. The overall structure of the packaging device is simple, and all key components and important components are universal standard parts or simple structural parts that can be mass-produced. Compared with the exclusive power battery packaging box, the present invention has the advantages of high space utilization, low production and use cost, simple structure, and less use restrictions.

[0023] 2. The cushion layer and the sheet metal are connected by adhesive, which is beneficial for users to replace different cushion layers according to the cushioning requirements of different power batteries, thereby reducing the cost of use. The power battery fixture is interference fit with the sheet metal and the power battery. Due to the properties of the EPP material itself, the power battery fixture can be stably fixed on the sheet metal and can also stably complete the clamping of the power battery.

[0024] 3. The fixing frame is a frame structure. Since the fixing frame is installed inside the transport unit, there is no need to consider the lateral stiffness of the frame structure. Therefore, the structure can be greatly simplified and the bolt connection can fully meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an isometric view of a set of sheet metal parts in a power battery packaging device according to an exemplary embodiment of the present disclosure.

[0026] Figure 2 It is an axial cross-sectional view of a set of sheet metal parts in a power battery packaging device according to an exemplary embodiment of the present disclosure.

[0027] Figure 3 It is a schematic diagram of the position of the mounting slot in the front axle member of a power battery packaging device according to an exemplary embodiment of the present disclosure.

[0028] Figure 4 It is a schematic diagram of a mounting frame and a fixing frame loading several sheet metal parts in a power battery packaging device according to an exemplary embodiment of the present disclosure.

[0029] Explanation of the reference numerals: 1. sheet metal; 2. buffer layer; 3. power battery fixture; 4. WDI circuit controller; 5. fixing frame; 6. power battery; 11. front axle member; 12. rear axle member; 111. mounting slot; 112. preparation plate; 13. fixing slot; 21. front buffer layer; 22. rear buffer layer; 31. power battery upper fixture; 32. power battery lower fixture; 51. mounting frame; 52. load frame. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] The present application embodiment discloses a power battery 6 packaging device. However, the embodiments of the present disclosure may be modified in a variety of different forms, and the scope of the present disclosure should not be interpreted as being limited by the embodiments described below. It is expected that the embodiments of the present disclosure will be interpreted as providing a more complete explanation of the present disclosure to those skilled in the art. Throughout the specification and drawings, the same reference numerals indicate the same elements. In addition, various elements and regions are schematically drawn in the drawings. Therefore, the concept of the present disclosure is not limited by the relative sizes or spacings drawn in the drawings.

[0032] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those of ordinary skill in the art to which the concept of the present disclosure belongs. It will be understood that common terms defined in dictionaries will be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and unless explicitly defined herein, these terms should not be interpreted in an overly formal sense.

[0033] like Figure 1 , 2 As shown in Figure 3, the sheet metal part 1 also includes a buffer layer 2, a power battery fixture 3, and a WDI circuit controller 4. The sheet metal part 1 is divided into a front bridge part 11 and a rear bridge part 12. A front bridge part 11 and a rear bridge part 12 are used together to form a set of sheet metal parts 1. Each set of sheet metal parts 1 fixes a power battery 6. The buffer layer 2 is divided into a front buffer layer 21 and a rear buffer layer 22. The power battery fixture 3 is divided into a power battery upper fixture 31 and a power battery lower fixture 32. The front bridge part 11 is respectively provided with a front buffer layer 21 and a power battery upper fixture 31 on one side of the power battery 6, and the rear bridge part 12 is provided with a power battery upper fixture 31 on the other side of the power battery 6. A rear buffer pad 22 and a power battery lower clamp 32 are respectively arranged on one side of the battery 6 in sequence. The front bridge component 11 includes a mounting slot 111 and a preparatory plate 112. A mounting slot 111 for mounting the WDI circuit controller 4 is arranged on the outer side of the front bridge component 11. The WDI circuit controller 4 is installed on the preparatory plate 112. The preparatory plate 112 is connected to the mounting slot 111 through a tenon structure. The front bridge component 11 is provided with an opening on one side of the mounting slot 111, and the opening corresponds to the power supply and electrical signal interface position of the power battery 6. A plurality of through holes are arranged on one side of the length direction of the front bridge component 11, and the front bridge component 11 is detachably connected to the fixing frame 5 through the through holes.

[0034] like Figure 1 , 2 As shown in Figure 3, the front bridge member 11 and the rear bridge member 12 in the sheet metal 1 fix the power battery 6 between the two through the power battery clamp 3, and the buffer layer 2 is connected to the sheet metal 1 by gluing. The user can replace the shape, thickness and molding process of the buffer layer 2 according to actual use requirements to meet the requirements of heat dissipation, noise reduction, shockproof and buffering of the power battery 6 during transportation. The fit between the sheet metal 1 and the power battery clamp 3 and the tenon connection between the power battery clamp 3 and the power battery 6 are both interference fits. The user can design the power battery clamp 3 according to the geometric characteristics of the power battery 6 that needs to be clamped to meet the needs of the user. The connection between the WDI circuit controller 4 and the sheet metal 1 is a detachable connection. The front bridge member 11 meets the need for charging the power battery 6 during transportation by leaving an opening. The front bridge member 11 is connected to the transport vehicle fixing frame 5 by bolts to improve the safety of transportation of the power battery 6.

[0035] like Figure 1 , 2 As shown in , 3 and 4 , the front bridge member 11 is made of spring steel, a handle is provided on the side of the front bridge member 11 away from the power battery 6 , the front bridge member 11 is adhesively connected to the front buffer layer 21 , the rear bridge member 12 is adhesively connected to the rear buffer layer 22 , and a fixed slot 13 is provided on the side of the rear bridge member 12 away from the power battery 6 , and the rear bridge member 12 is clamped on the fixing frame 5 through the fixed slot 13 .

[0036] like Figure 1 , 2 As shown in FIG. 3 , the spring steel used for the front axle member 11 has excellent elastic modulus and bending modulus to resist shaking and vibration that may occur during transportation due to unknown transportation road conditions, thereby protecting the battery from bumps. The handle provided on the front axle member 11 is conducive to transportation and loading and unloading. The rear axle member 12 is clamped on the fixing frame 5 through the fixing slot 13 to limit the degree of freedom of the rear axle member 12 to 1, which is conducive to the loading and unloading operations of the power battery 6.

[0037] like Figure 2 As shown, the material of the buffer layer 2 is EPP material, and there is only contact but no connection between the buffer layer 2 and the power battery clamp 3.

[0038] like Figure 2 As shown, the cushion layer 2 is made of EPP material. Since the EPP material of the cushion layer 2 is easy to dismantle and discard, the molding process can be adjusted according to the size and weight of the transported power battery 6 to meet the requirements of heat dissipation, noise reduction, and cushioning in transportation. There is no connection between the cushion layer 2 and the power battery fixture 3. When the power battery fixture 3 is connected to the sheet metal part 1, the positional relationship between the power battery fixture 3 and the cushion layer 2 is contact.

[0039] like Figure 2 As shown, the material of the power battery clamp 3 is EPP material, the upper clamp 31 of the power battery is connected to the front bridge member 11 by a tenon connection, the lower clamp 32 of the power battery is connected to the rear bridge member 12 by a tenon connection, the power battery clamp 3 usually adopts an injection molding process to meet the requirements of the power battery clamp 3 for mechanical properties, the shape design of the power battery clamp 3 is adjusted according to the appearance shape of the transported power battery 6, the purpose is to clamp the power battery 6, the tenon connection between the power battery clamp 3 and the front bridge member 11 and the rear bridge member 12 is an interference fit, the purpose is to ensure the stable cooperation between the power battery clamp 3 and the front bridge member 11 and the rear bridge member 12, the characteristics of judging whether the power battery clamp 3 can clamp the power battery 6 and the stable connection with the sheet metal part 1 are manifested in that the sheet metal part 1 that has been clamped with the power battery 6 can be placed on a stable plane, and in the absence of external forces other than gravity, the structure of the sheet metal part 1 and any connection therein do not undergo any changes in nature.

[0040] like Figure 2 , 3 As shown, the connection method between the WDI circuit controller 4 and the preparation plate 112 is any one of tenon, bolt, gluing and adsorption. The preparation plate 112 and the installation slot 111 are connected by tenon. The WDI circuit controller 4 is selected according to the type of power battery 6 and the transportation specifications and requirements of power battery 6 and dangerous goods transportation requirements. The preparation plate 112 needs to be designed in a universal way to adapt to different WDI circuit controllers 4. The tenon connection between the preparation plate 112 and the installation slot 111 is an interference fit, which is conducive to ensuring stability during transportation.

[0041] like Figure 4 As shown, the fixing frame 5 includes a mounting frame and a load frame 52. The mounting frame and the load frame 52 are connected by bolts. The load frame 52 is fixed inside the transport equipment through the mounting frame. The load frame 52 is used to fix the sheet metal part 11. A plurality of connection holes are provided on the load frame 52. The connection holes at different positions are selected according to the size of the power battery 6. The mounting frame is fixed to the transport equipment by threaded connection. In order to express the structure more clearly, FIG1 only shows a two-layer load frame 52 structure. The batteries on the load frame 52 only show a few batteries of different sizes. The specific installation and fixation is based on actual use requirements.

[0042] like Figure 4 As shown, the basic selection of the mounting frame and the load frame 52 is a smooth R-shaped aluminum angle or a right-angle aluminum. The user may also select other aluminum profiles or other metal profiles that meet the requirements, provided that they meet the needs of the user and the relevant laws and regulations such as the Dangerous Goods Transportation Safety Management Regulations. The mounting frame and the load frame 52 are connected by aluminum profile accessories and bolts, and are usually selected from common general aluminum accessories such as angle pieces, large angle pieces, strong angle pieces, steering angle pieces, and profile angle pieces.

[0043] like Figure 4As shown, the load rack 52 is divided into several layers in the Z direction. In the same layer, the load rack 52 is divided into an X-direction load rack 52 and a Y-direction load rack 52. The X-direction load rack 52 and the Y-direction load rack 52 together constitute a load network. Through holes are evenly arranged on the X-direction load rack 52 and the Y-direction load rack 52 to meet the needs of users for loading power batteries 6 of different models and sizes. By adjusting the positions of the X-direction load rack 52 and the Y-direction load rack 52 and fixing them with bolts through the evenly distributed through holes arranged on the X-direction load rack 52 and the Y-direction load rack 52, the operation When transporting the same batch of power batteries 6 containing different models, the boundary of the load rack 52 is determined by the loading position and size of the power batteries 6, which is beneficial for the user to adjust the order of loading the power batteries 6 and improve the utilization rate of the loading space. The load rack 52 is a multi-layer structure. A single-layer load rack 52 arranges and fixes multiple sets of sheet metal parts 11, and there is a gap between two adjacent sheet metal parts 11. When encountering bumps, shaking, vibrations or accidents during transportation, the gap between adjacent sheet metal parts 11 is beneficial to ensure that the power batteries 6 will not collide with each other.

[0044] like Figure 1 and 4 As shown, the front bridge member 11 is provided with through holes, which correspond to the number and position of the threaded holes on the load frame 52, and the rear bridge member 12 is provided with a connection groove connected to the load frame 52. The user can ignore or pay attention to some bolts according to actual use requirements, which is conducive to the user's flexible arrangement of their own work intensity. The fixing slot 13 on the rear bridge member 12 can reduce the degree of freedom of the rear bridge member 12 relative to the load frame 52 to 1, which is conducive to meeting the stability requirements during transportation.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transport packaging device for a power battery, comprising a fixing frame (5), characterized in that: The invention also comprises a sheet metal part (1), a buffer layer (2), a power battery fixture (3), a WDI circuit controller (4) and a power battery (6); the sheet metal part (1) is divided into a front bridge part (11) and a rear bridge part (12); a front bridge part (11) and a rear bridge part (12) are used together to form a set of sheet metal parts (1); each set of sheet metal parts (1) fixes a power battery (6); the buffer layer (2) is divided into a front buffer layer (21) and a rear buffer layer (22); the power battery fixture (3) is divided into a power battery upper fixture (31) and a power battery lower fixture (32); the front bridge part (11) is provided with a front buffer layer (21) and a power battery upper fixture (31) on one side for clamping the power battery; the rear bridge part (12) is provided with a front buffer layer (21) and a power battery upper fixture (31) on one side for clamping the power battery; A rear buffer layer (22) and a power battery lower clamp (32) are arranged in sequence on one side for clamping the power battery. The front bridge member (11) comprises a mounting slot (111) and a preparatory plate (112). A mounting slot (111) for mounting a WDI circuit controller (4) is arranged on the outer side of the front bridge member (11). The WDI circuit controller (4) is mounted on the preparatory plate (112). The preparatory plate (112) is connected to the mounting slot (111) via a tenon structure. The front bridge member (11) is provided with an opening on one side of the mounting slot (111). The opening corresponds to the power battery power source and electrical signal interface position. A plurality of through holes are arranged on one side of the front bridge member (11) in the length direction. The front bridge member (11) is detachably connected to the transport vehicle fixing frame (5) via the through holes.

2. A transport packaging device for a power battery according to claim 1, characterized in that: The front bridge member (11) is made of spring steel. A handle is provided on the side of the front bridge member (11) away from the power battery. The front bridge member (11) is connected to the front buffer layer (21) by adhesive. Through holes are provided on the front bridge member (11), which correspond in number and position to the threaded holes on the load frame (52). The rear bridge member (12) is connected to the rear buffer layer (22) by adhesive. A fixing slot (13) is provided on the side of the rear bridge member (12) away from the power battery. The rear bridge member (12) is clamped on the fixing frame (5) by the fixing slot (13).

3. The transport packaging device for a power battery according to claim 1, characterized in that: The material of the buffer pad layer (2) is EPP material, and there is only contact but no connection between the buffer pad layer (2) and the power battery clamp (3).

4. The transport packaging device for a power battery according to claim 1, characterized in that: The power battery clamp (3) is made of EPP material; the power battery upper clamp (31) is connected to the front bridge member (11) by means of a tenon; and the power battery lower clamp (32) is connected to the rear bridge member (12) by means of a tenon.

5. A transport packaging device for a power battery according to claim 1, characterized in that: The power battery upper clamp (31) is connected to the power battery (6) via a slot, and the power battery lower clamp (32) is connected to the power battery (6) via a slot.

6. The transport packaging device for a power battery according to claim 1, characterized in that: The WDI circuit controller (4) and the preparation plate (112) are connected by any one of tenon, bolt, gluing and adsorption, and the preparation plate (112) and the installation slot (111) are connected by tenon.

7. The transport packaging device for a power battery according to claim 1, characterized in that: The fixing frame (5) comprises a mounting frame (51) and a load frame (52); the mounting frame (51) and the load frame (52) are connected by bolt connection; the load frame (52) is fixed inside the transport equipment through the mounting frame (51); the load frame (52) is used to fix the sheet metal part (1); a plurality of connection holes are provided on the load frame (52); the connection holes are located at different positions according to the size of the power battery; the mounting frame (51) is fixed to the transport equipment by threaded connection.

8. The transport packaging device for a power battery according to claim 7, characterized in that: The load frame (52) is a multi-layer structure. A single-layer load frame (52) arranges and fixes a plurality of sheet metal parts (1), and a gap is left between two adjacent sheet metal parts (1).

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