A power battery packaging device

Abstract

The application relates to a power battery transportation packaging device which comprises a fixing frame, a sheet metal part, a buffer pad layer, a power battery clamp and a WDI circuit controller. The sheet metal part is divided into front bridge parts and rear bridge parts, one front bridge part is used in cooperation with one rear bridge part to form a set of sheet metal parts, one power battery is fixed in each set of sheet metal parts, the front bridge parts and the rear bridge parts in the sheet metal part are fixed with the power battery in the middle through the power battery clamp, and the buffer pad layer is connected with the sheet metal part in a gluing mode. In the application, the user can replace the shape, thickness and forming process of the buffer pad layer according to actual use requirements to meet the requirements of the power battery on heat dissipation, noise reduction, shock prevention and buffering in the transportation process. Meanwhile, the fixing frame can be loaded with power batteries of different sizes, and the safety of power battery transportation is improved and the transportation cost of the power battery is reduced.

Description

Technical Field

[0001] This invention relates to the field of transport packaging devices, and more specifically to a power battery packaging device. Background Technology

[0002] The application scenarios of power batteries involve many fields such as new energy vehicles, new energy storage, mobile communications, and unmanned equipment. Therefore, the types and models of power batteries are also very diverse. Since different models and types of power batteries are produced by different manufacturers, in different production regions, and with different production cycles, and since the transportation of power batteries is classified as dangerous goods, long-distance transportation of power batteries usually requires dedicated vehicles, dedicated trips, and dedicated models, resulting in high transportation costs.

[0003] Related technology can be found in Chinese Patent No. CN108995976A, which discloses a power battery packaging box with protective function. The packaging box includes a main body, and a slider with two grooves is provided at the bottom of the inner wall of the main body. The inner wall of the groove is movably connected to the surface of the slider. Slots are provided on the opposite sides of the two sliders. A return spring and a hinge seat are fixedly connected to the opposite sides of the two sliders, and the hinge seat is located above the return spring. The two return springs are fixedly connected to the left and right sides of the inner wall of the main body of the packaging box, respectively. The hinge seat is movably connected to one end of a connecting rod through a pin, and the other end of the connecting rod is movably connected to the end of the moving rod away from the slider through a moving shaft.

[0004] Regarding the aforementioned technologies, this power battery packaging box solves the problems of extremely limited protective effect of single-layer paper packaging boxes for power batteries and easy damage to power batteries during transportation by setting up sliders, return springs, fixing plates, fixing rods, and locking blocks. However, in the aforementioned technologies, the packaging box and the sliders, return springs, fixing plates, fixing rods, and locking blocks inside the packaging box are all non-standard designs, resulting in high design and production costs. Furthermore, the size 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 need to be packaged in other types of packaging boxes. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a power battery packaging device that offers both protection and solves the problems of complex packaging device structure, insufficient applicability to power battery sizes, and high production costs.

[0006] (II) Technical Solution To address the shortcomings of existing technologies, this invention provides the following technical solution: a transport packaging device for power batteries, comprising a fixing frame, characterized in that it further comprises sheet metal parts, a cushioning layer, power battery clamps, and a WDI circuit controller. The sheet metal parts are divided into a front axle part and a rear axle part, with one front axle part and one rear axle part used together to form a set of sheet metal parts. Each set of sheet metal parts fixes one power battery. The cushioning layer is divided into a front cushioning layer and a rear cushioning layer. The power battery clamps are divided into an upper power battery clamp and a lower power battery clamp. The front axle part has sequentially arranged [features] on one side where the power battery is clamped. The front axle assembly includes a front buffer pad and a power battery clamp. The rear axle assembly has a rear buffer pad and a power battery clamp on the side where the power battery is clamped. The front axle assembly includes a mounting slot and a preparatory plate. The outer side of the front axle assembly has a mounting slot for mounting a WDI circuit controller. The WDI circuit controller is mounted on the preparatory plate, which is connected to the mounting slot via a latch structure. The front axle assembly has an opening on one side of the mounting slot, corresponding to the power battery power and electrical signal interface. Multiple through holes are provided on one side of the front axle assembly along its length. The front axle assembly is detachably connected to the transport vehicle mounting frame through these through holes.

[0007] By adopting the above technical solution, the front axle and rear axle components in the sheet metal parts are fixed with the power battery between them by a power battery clamp. The buffer pad is connected to the sheet metal parts by adhesive. Users can change the shape, thickness and molding process of the buffer pad according to actual usage needs to meet the power battery's requirements for heat dissipation, noise reduction, shock absorption and cushioning 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 all interference fits. Users can design the power battery clamp according to the geometric characteristics of the power battery to be clamped to meet their needs. The connection between the WDI circuit controller and the sheet metal parts is a detachable connection. The front axle component has an opening to meet the charging needs of the power battery during transportation. The front axle component is connected to the transport vehicle's fixing frame by bolts to improve the safety of power battery transportation.

[0008] Optionally, the front axle component is made of spring steel, and a handle is provided on the side of the front axle component away from the power battery. The front axle component is bonded to the front buffer pad layer with adhesive. The front axle component has through holes, which correspond one-to-one with the number and position of the threaded holes on the load frame. The rear axle component is bonded to the rear buffer pad layer with adhesive. The rear axle component has a fixing slot on the side away from the power battery, through which the rear axle component is fixed to the fixing frame.

[0009] By adopting the above technical solutions, the spring steel used in the front axle has excellent elastic modulus and bending modulus to resist the shaking and vibration that may occur during transportation due to unknown road conditions, thereby protecting the battery from impacts. The handles on the front axle facilitate transportation and loading / unloading. The rear axle restricts its degree of freedom to one by fixing it to the fixed frame through a fixed slot, which is beneficial for the loading and unloading of the power battery.

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

[0011] By adopting the above technical solution, the buffer pad layer is made of EPP material. Due to the easy disassembly and disposal characteristics of EPP material, the molding process can be adjusted according to the size, weight, and other relevant requirements of the transported power battery to meet the requirements for heat dissipation, noise reduction, and cushioning during transportation. There is no connection between the buffer pad layer and the power battery clamp. When the power battery clamp is connected to the sheet metal part, the positional relationship between the power battery clamp and the buffer pad layer is contact.

[0012] Optionally, the power battery clamp is made of EPP material, the upper clamp of the power battery is connected to the front axle component by a snap-fit ​​connection, and the lower clamp of the power battery is connected to the rear axle component by a snap-fit ​​connection.

[0013] By adopting the above technical solutions, the power battery clamp is usually made by injection molding to meet the mechanical performance requirements of the power battery clamp. 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 is an interference fit, with the purpose of ensuring the stable fit between the power battery clamp and the front axle and rear axle.

[0014] Optionally, the upper clamp of the power battery is connected to the power battery via a slot, and the lower clamp of the power battery is also 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. At the same time, 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 connection method between the WDI circuit controller and the preparation board can be any one of the following: snap fastener, bolt, adhesive, and adsorption, with the preparation board and the mounting slot connected by snap fastener.

[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 board needs to be universally designed to adapt to different WDI circuit controllers. The tenon connection between the preparation board and the mounting slot is an interference fit, which helps to ensure stability during transportation.

[0018] Optionally, the fixing frame includes a mounting frame and a load frame, and the mounting frame and the load frame are connected by bolts. The load frame is fixed inside the transport equipment by the mounting frame. The load frame is used to fix sheet metal parts. The load frame has multiple connection holes, and the connection holes at different positions are selected according to the size of the power battery. 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 but 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 users to adjust the loading order of the power batteries and improve the utilization rate of loading space.

[0020] Optionally, the load frame has a multi-layer structure, with multiple sets of sheet metal parts arranged and fixed in a single layer, and gaps left between adjacent sheet metal parts.

[0021] By adopting the above technical solution, the gap between adjacent sheet metal parts helps to ensure that the power batteries will not collide with each other when encountering bumps, shaking, vibration or accidents during transportation.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Sheet metal parts, buffer pads, and power battery clamps constitute a basic unit for clamping power batteries. Together with a fixing frame and a load frame, they form a power battery packaging device. The main connection methods within the packaging device are adhesive bonding, tenon joints, and bolt connections. The overall structure of the packaging device is simple, and all key and important components are general standard parts or simple structural parts that can be mass-produced. Compared with dedicated power battery packaging boxes, this invention has the advantages of high space utilization, low production and usage costs, simple structure, and minimal limitations in use.

[0023] 2. The buffer pad is glued to the sheet metal part, which allows users to replace the buffer pad with different ones to meet the different buffering needs of the power battery, thus reducing the cost of use. The fit between the power battery clamp, the sheet metal part, and the power battery is an interference fit. Due to the properties of EPP material itself, the power battery clamp can be stably fixed on the sheet metal part and the power battery can be stably clamped.

[0024] 3. The fixing frame is a frame structure. Since the fixing frame is installed inside the transportation unit, there is no need to consider the lateral stiffness of the frame structure. Therefore, the structure can be greatly simplified, and bolt connection can fully meet the user's needs. Attached Figure Description

[0025] Figure 1 This is an axonometric 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 This is an axonometric 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 This is a schematic diagram of the mounting slot position in the front axle component of a power battery packaging device according to an exemplary embodiment of the present disclosure.

[0028] Figure 4 This 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 reference numerals in the attached drawings: 1. Sheet metal part; 2. Buffer pad; 3. Power battery clamp; 4. WDI circuit controller; 5. Fixing bracket; 6. Power battery; 11. Front axle component; 12. Rear axle component; 111. Mounting slot; 112. Preparatory plate; 13. Fixing slot; 21. Front buffer pad; 22. Rear buffer pad; 31. Upper clamp for power battery; 32. Lower clamp for power battery; 51. Mounting bracket; 52. Load frame. Detailed Implementation

[0030] The present application will be further described in detail below with reference to all the accompanying drawings.

[0031] This application discloses a power battery packaging device. However, embodiments of this disclosure can be modified in many different ways, and the scope of this disclosure should not be construed as limited by the embodiments described below. It is intended that embodiments of this disclosure be interpreted to provide a more complete explanation of this disclosure to those skilled in the art. Throughout the specification and drawings, the same reference numerals indicate the same elements. Furthermore, various elements and areas are schematically drawn in the drawings. Therefore, the concept of this disclosure is not limited to the relative dimensions or spacing depicted in the drawings.

[0032] Unless otherwise specified, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which the concept of this disclosure pertains. It will be understood that commonly used terms defined in dictionaries will be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and that these terms should not be interpreted in an overly formal sense unless expressly specified herein.

[0033] like Figure 1 , 2 As shown in Figure 3, the sheet metal part 1 also includes a buffer pad layer 2, a power battery clamp 3, and a WDI circuit controller 4. The sheet metal part 1 is divided into a front axle part 11 and a rear axle part 12. One front axle part 11 and one rear axle part 12 are used together to form a set of sheet metal parts 1. Each set of sheet metal parts 1 fixes one power battery 6. The buffer pad layer 2 is divided into a front buffer pad layer 21 and a rear buffer pad layer 22. The power battery clamp 3 is divided into an upper power battery clamp 31 and a lower power battery clamp 32. The front axle part 11 has a front buffer pad layer 21 and an upper power battery clamp 31 arranged sequentially on the side where the power battery 6 is clamped. The rear axle part 12 has a front buffer pad layer 21 and an upper power battery clamp 31 arranged sequentially on the side where the power battery 6 is clamped. A rear buffer pad 22 and a power battery lower clamp 32 are sequentially arranged on one side of the battery 6. The front axle component 11 includes a mounting slot 111 and a preparation plate 112. The outer side of the front axle component 11 is provided with a mounting slot 111 for mounting the WDI circuit controller 4. The WDI circuit controller 4 is mounted on the preparation plate 112. The preparation plate 112 is connected to the mounting slot 111 through a snap-fit ​​structure. The front axle component 11 has an opening on one side of the mounting slot 111, which corresponds to the power supply and electrical signal interface of the power battery 6. Multiple through holes are provided on one side of the front axle component 11 along its length. The front axle 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 axle 11 and rear axle 12 in sheet metal part 1 are fixed between the power battery 6 by the power battery clamp 3. The buffer pad 2 is connected to the sheet metal part 1 by adhesive. Users can change the shape, thickness and molding process of the buffer pad 2 according to actual needs to meet the requirements of the power battery 6 for heat dissipation, noise reduction, shock absorption and cushioning during transportation. The fit between the sheet metal part 1 and the power battery clamp 3 and the snap-fit ​​connection between the power battery clamp 3 and the power battery 6 are all interference fits. Users can design the power battery clamp 3 according to the geometric characteristics of the power battery 6 to be clamped to meet the user's needs. The connection between the WDI circuit controller 4 and the sheet metal part 1 is a detachable connection. The front axle 11 has an opening to meet the charging needs of the power battery 6 during transportation. The front axle 11 is connected to the transport vehicle fixing frame 5 by bolts to improve the safety of transporting the power battery 6.

[0035] like Figure 1 , 2 As shown in Figures 3 and 4, the front axle component 11 is made of spring steel. The front axle component 11 has a handle on the side away from the power battery 6. The front axle component 11 is glued to the front buffer pad 21. The rear axle component 12 is glued to the rear buffer pad 22. The rear axle component 12 has a fixing slot 13 on the side away from the power battery 6. The rear axle component 12 is fixed to the fixing frame 5 through the fixing slot 13.

[0036] like Figure 1 , 2 As shown in Figure 3, the spring steel used in the front axle component 11 has excellent elastic modulus and bending modulus to resist the shaking and vibration that may occur during transportation due to unknown road conditions, thereby protecting the battery from impacts. The handle provided on the front axle component 11 facilitates loading and unloading during transportation. The rear axle component 12 is fixed to one degree of freedom by being secured to the fixed frame 5 by the fixing slot 13, which is beneficial for the loading and unloading of the power battery 6.

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

[0038] like Figure 2 As shown, the buffer layer 2 is made of EPP material. Due to the easy disassembly and disposal characteristics of the EPP material, the molding process can be adjusted according to the size, weight, and other requirements of the transported power battery 6 to meet the requirements for heat dissipation, noise reduction, and cushioning during transportation. There is no connection between the buffer layer 2 and the power battery clamp 3. When the power battery clamp 3 is connected to the sheet metal part 1, the positional relationship between the power battery clamp 3 and the buffer layer 2 is one of contact.

[0039] like Figure 2 As shown, the power battery clamp 3 is made of EPP material. The upper clamp 31 of the power battery is connected to the front axle 11 by a snap-fit, and the lower clamp 32 of the power battery is connected to the rear axle 12 by a snap-fit. The power battery clamp 3 is usually made by injection molding to meet the mechanical performance requirements of the power battery clamp 3. The shape design of the power battery clamp 3 is adjusted according to the appearance shape of the transported power battery 6, with the purpose of clamping the power battery 6. The snap-fit ​​connection between the power battery clamp 3 and the front axle 11 and the rear axle 12 is an interference fit, with the purpose of ensuring the stable fit between the power battery clamp 3 and the front axle 11 and the rear axle 12. The characteristic that the power battery clamp 3 can clamp the power battery 6 and the connection between it and the sheet metal part 1 is stable is that the sheet metal part 1 with the power battery 6 clamped can be placed on a stable plane, and the structure of the sheet metal part 1 and any connection therein do not undergo any changes in nature under the absence of external forces other than gravity.

[0040] like Figure 2 , 3 As shown, the connection method between the WDI circuit controller 4 and the preparatory plate 112 is any one of the following: snap fastener, bolt, adhesive, and adsorption. The preparatory plate 112 and the mounting slot 111 are connected by snap fasteners. The WDI circuit controller 4 is selected according to the type of power battery 6 and the transportation specifications and dangerous goods transportation requirements of the power battery 6. The preparatory plate 112 needs to be universally designed to adapt to different WDI circuit controllers 4. The snap fastener connection between the preparatory plate 112 and the mounting slot 111 is an interference fit, which helps to ensure 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 by the mounting frame. The load frame 52 is used to fix the sheet metal parts 11. The load frame 52 has multiple connection holes, and 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 a threaded connection. To illustrate the structure more clearly, only the two-layer load frame 52 structure is shown in Figure 1. Only a few batteries of different sizes are shown on the load frame 52. The specific installation and fixing are based on actual usage requirements.

[0042] like Figure 4 As shown, the basic selection of the mounting bracket and load frame 52 is a smooth R-shaped angle aluminum component or a right-angle aluminum component. Users may also choose other aluminum components or other compliant metal components, provided that the requirements of the user are met and relevant laws and regulations such as the Regulations on the Safety Management of Dangerous Goods Transportation are satisfied. The mounting bracket and load frame 52 are connected by aluminum profile fittings and bolts, typically using common general-purpose aluminum fittings such as corner fittings, large corner fittings, heavy-duty corner fittings, steering corner fittings, and profile corner fittings.

[0043] like Figure 4As shown, the load cell 52 has several layers in the Z direction. Within the same layer, the load cell 52 is divided into X-axis load cell 52 and Y-axis load cell 52. The X-axis load cell 52 and Y-axis load cell 52 together form a load net. Through holes are evenly distributed on the X-axis load cell 52 and Y-axis load cell 52 to meet the user's needs for loading power batteries 6 of different models and sizes. The positions of the X-axis load cell 52 and Y-axis load cell 52 are adjusted, and they are bolted together using the evenly distributed through holes on the X-axis load cell 52 and Y-axis load cell 52. When transporting the same batch of power batteries 6 but 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 users to adjust the loading order of the power batteries 6 and improve the utilization rate of loading space. The load rack 52 has a multi-layer structure, with multiple sets of sheet metal parts 11 arranged and fixed in a single layer. There is a gap between two adjacent sheet metal parts 11. When encountering bumps, shaking, vibration or accidents during transportation, the gap between adjacent sheet metal parts 11 helps to ensure that the power batteries 6 will not collide with each other.

[0044] like Figure 1 and 4 As shown, the front axle component 11 has through holes, which correspond one-to-one with the number and position of the threaded holes on the load frame 52. The rear axle component 12 has a connecting groove for connecting to the load frame 52. Users can ignore or emphasize some bolt fits according to actual usage needs, which is conducive to users flexibly arranging their own workload. The fixing slot 13 on the rear axle component 12 can reduce the degree of freedom of the rear axle component 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 this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transport packaging device for power batteries, comprising a fixing frame (5), characterized in that, It also includes sheet metal parts (1), buffer pads (2), power battery clamps (3), WDI circuit controllers (4), and power batteries (6). The sheet metal parts (1) are divided into front axle parts (11) and rear axle parts (12). One front axle part (11) and one rear axle part (12) are used together to form a set of sheet metal parts (1). Each set of sheet metal parts (1) fixes one power battery (6). The buffer pads (2) are divided into front buffer pads (21) and rear buffer pads (22). The power battery clamps (3) are divided into upper power battery clamps (31) and lower power battery clamps (32). The front axle part (11) is provided with a front buffer pad (21) and an upper power battery clamp (31) on the side where the power battery is clamped. The rear axle part (12) is provided with a rear buffer pad (22) and a lower power battery clamp (32) on the side where the power battery is clamped. 2) The front axle component (11) includes a mounting slot (111) and a preparatory plate (112). The front axle component (11) has a mounting slot (111) for mounting a WDI circuit controller (4) on its outer side. The WDI circuit controller (4) is mounted on the preparatory plate (112). The preparatory plate (112) is connected to the mounting slot (111) through the slot structure. The front axle component (11) has an opening on one side of the mounting slot (111). The opening corresponds to the power battery power supply and electrical signal interface position. Multiple through holes are provided on one side of the front axle component (11) along its length. The front axle component (11) is detachably connected to the transport vehicle fixing frame (5) through the through holes. The fixing frame (5) includes a mounting frame (51) and a load frame (52). Multiple 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 to fix the sheet metal part (1).

2. The transport packaging device for a power battery according to claim 1, characterized in that, The front axle component (11) is made of spring steel. The front axle component (11) has a handle on the side away from the power battery. The front axle component (11) is glued to the front buffer pad (21). The front axle component (11) has through holes, which correspond one-to-one with the number and position of the threaded holes on the load frame (52). The rear axle component (12) is glued to the rear buffer pad (22). The rear axle component (12) has a fixing slot (13) on the side away from the power battery. The rear axle component (12) is clamped onto the fixing frame (5) through the fixing slot (13).

3. The transport packaging device for a power battery according to claim 1, characterized in that, The buffer pad (2) is made of EPP material, and there is only contact but no connection between the buffer pad (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 upper clamp (31) of the power battery is connected to the front axle (11) by a slot, and the lower clamp (32) of the power battery is connected to the rear axle (12) by a tenon.

5. The transport packaging device for a power battery according to claim 1, characterized in that, The upper clamp (31) of the power battery is connected to the power battery (6) via a slot, and the lower clamp (32) of the power battery 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 connection between the WDI circuit controller (4) and the preparatory board (112) can be any one of slot, bolt, adhesive and adsorption, and the preparatory board (112) and the mounting slot (111) are connected by a tenon.

7. The transport packaging device for a power battery according to claim 1, characterized in that, The connection between the mounting bracket (51) and the load bracket (52) is a bolt connection. The load bracket (52) is fixed inside the transport equipment through the mounting bracket (51). The load bracket (52) is used to fix the sheet metal parts (1). The mounting bracket (51) is fixed to the transport equipment through a threaded connection.

8. The transport packaging device for a power battery according to claim 1, characterized in that, The load frame (52) is a multi-layer structure. A single load frame (52) is arranged to fix multiple sheet metal parts (1), and there is a gap between two adjacent sheet metal parts (1).

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