Board structure, battery device, and electric device

Abstract

The utility model discloses a plate structure, a battery device and a power utilization device, the plate structure comprises a first layer plate, a second layer plate and a third layer plate which are sequentially stacked along a first direction, and the second layer plate is a nylon particle foam plate. According to the plate structure, the nylon particle foam plate is clamped between the two layers of plates, the first layer of plate can disperse impact force, so that the foam plate is evenly stressed, the energy absorption characteristic is fully played, local failure is avoided, the internal foam structure of the nylon particle foam plate can effectively cope with impact, and the nylon particle foam plate is excellent in mechanical property, high in strength and high in toughness; when the foam board is impacted, energy is absorbed through foam hole deformation and nylon particle effect, the structure is kept stable, the third layer board provides supporting and restraining, excessive deformation of the foam board is prevented, and the integrity of the whole structure is guaranteed. The characteristics of the three layers of materials are complementary, an energy transfer path is optimized, the compression deformation capacity and the impact resistance capacity of the whole plate structure are greatly improved, structural safety and stability can be effectively guaranteed, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the field of electronic battery technology, and in particular to a plate structure, battery device, and power supply device. Background Technology

[0002] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0003] In power batteries, components such as the battery casing, as a key protective structure, play a crucial role. They are typically made of high-strength materials, possessing excellent sealing and impact resistance, effectively protecting the internal battery pack from external environmental influences. Another example is the battery casing's bottom guard, which prevents damage from impacts from below. For instance, when a vehicle travels over potholes, protruding stones, or speed bumps, the bottom guard cushions the impact, preventing the battery casing from being directly struck by hard objects and deforming or cracking. It also prevents the bottom of the battery casing from being scratched by sharp objects on the road, such as metal fragments or branches. Scratches can damage the battery casing's outer shell, compromising its seal and affecting the battery's normal operation and safety.

[0004] However, in related technologies, the compression deformation and impact resistance of the bottom guard plate still need to be improved. Utility Model Content

[0005] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide a plate structure with good compressive deformation capacity and impact resistance.

[0006] According to some embodiments of this application, the board structure includes: a first layer board, a second layer board, and a third layer board stacked sequentially along a first direction, wherein the second layer board is a nylon particle foam board.

[0007] In the above example, the nylon particle foam board possesses unique advantages. Its internal cellular structure effectively withstands impacts, exhibiting excellent mechanical properties, combining high strength and high toughness. Upon impact, it absorbs energy and maintains structural stability through cellular deformation and the action of nylon particles. When the nylon particle foam board is sandwiched between two layers, the first layer disperses the impact force, ensuring even stress distribution on the foam board, fully utilizing its energy absorption characteristics, and preventing localized failure. The third layer provides support and constraint, preventing excessive deformation of the foam board and ensuring the integrity of the overall structure. The complementary properties of the three layers optimize the energy transfer path, significantly enhancing the compressive deformation capacity and impact resistance of the entire board structure, effectively ensuring structural safety and stability, extending service life, and reducing maintenance costs.

[0008] In some embodiments of this application, the first layer is a metal plate or a fiber-reinforced resin plate; and / or, the third layer is a metal plate or a fiber-reinforced resin plate.

[0009] In the above example, when the first and third layers are made of metal or fiber-reinforced resin respectively, the metal layer provides the structure with high strength and good thermal conductivity, while the fiber-reinforced resin layer offers lightweight and design flexibility. The nylon granule foam sandwiched between them, with its unique cell structure and material properties, effectively absorbs impact energy and buffers vibrations when subjected to external forces. The synergistic effect of these three elements allows the entire board structure to evenly distribute stress during compression deformation, significantly improving impact resistance and enhancing product performance, safety, and lifespan.

[0010] In some embodiments of this application, the metal plate is a steel plate or an aluminum plate.

[0011] In the examples above, when steel or aluminum plates are used as part of a composite plate structure, steel plates possess extremely high strength and hardness, enabling them to maintain structural stability even under immense pressure and impact, providing a solid and reliable supporting foundation for the overall structure. Aluminum plates, on the other hand, are lightweight, effectively reducing the overall structural mass. Furthermore, aluminum plates offer a degree of corrosion resistance, which helps extend their service life in specific environments.

[0012] In some embodiments of this application, the first layer is the metal plate, the third layer is the fiber-reinforced resin plate, and the thickness of the third layer is greater than the thickness of the first layer; or, the first layer is the fiber-reinforced resin plate, the third layer is the metal plate, and the thickness of the first layer is greater than the thickness of the third layer.

[0013] In the above example, when the thickness of the fiber-reinforced resin board is greater than that of the metal board, the thicker fiber-reinforced resin board can more effectively disperse and buffer external impact forces. Its internal fiber structure can deform and absorb energy under pressure, slowing down the deformation process and enhancing the overall flexibility and stability of the structure. Although the metal board is thin, it provides high-strength support in critical areas such as those subjected to concentrated stress, working synergistically with the fiber-reinforced resin board. Upon impact, this combination of thicknesses guides the rational distribution of energy between different layers, effectively reducing localized stress concentration and preventing structural damage due to excessive compression or impact, thus greatly improving the impact and compressive strength of the board structure.

[0014] In some embodiments of this application, the thickness D1 of the nylon particle foam board satisfies: 3mm≤D1≤15mm.

[0015] In the above example, the thickness D1 of the nylon particle foam board meets the aforementioned conditions. The nylon particle foam board can provide suitable energy absorption and cushioning for different application scenarios, allowing it to adapt flexibly to varying degrees of impact. At a thinner thickness, it can provide a certain level of impact protection for lightweight structures without occupying excessive space, effectively dispersing and absorbing energy, and reducing the impact on the overall structure. As the thickness increases, its cushioning and energy absorption capabilities gradually enhance. For medium to large structures or scenarios subject to significant impacts, it can fully utilize its deformation energy absorption characteristics, greatly improving the compressive deformation resistance and impact resistance of the entire board structure, ensuring structural safety and stability.

[0016] In some embodiments of this application, the thickness D of the plate structure satisfies: 5mm≤D1≤20mm.

[0017] In the above example, the thickness D of the plate structure meets the aforementioned conditions. The plate structure can adapt to various application scenarios. The thinner portion can meet the product requirements with strict space and weight constraints, providing a certain level of impact resistance without significantly increasing volume and weight, effectively buffering smaller impact forces and controlling compressive deformation. As the thickness increases, the overall impact resistance of the structure gradually improves, enabling it to withstand impacts of greater energy. When subjected to greater pressure or impact, the thickness advantage fully utilizes the characteristics of each layer of the plate, reducing deformation and damage, and ensuring the safety and stability of internal components or the overall structure.

[0018] In some embodiments of this application, the first layer and the second layer are heat-fused or glued together, and the second layer and the third layer are heat-fused or glued together.

[0019] In the examples above, thermoforming allows adjacent layers to form a strong and stable bond at the interface, effectively transferring stress and enhancing the overall structural integrity and coherence. This makes the synergistic effect of each layer more efficient when the panel structure is subjected to compression and impact. Adhesive bonding, on the other hand, has good adaptability, can fill tiny gaps, further strengthen interlayer bonding, and reduce relative displacement between layers. Both thermoforming and adhesive bonding contribute to improving the stability of the panel structure, ensuring excellent compressive deformation and impact resistance even under complex stress environments.

[0020] This application also proposes a battery device having a plate structure as described in the above embodiments.

[0021] A battery device according to some embodiments of this application includes a battery case and battery cells installed inside the battery case, the battery case including the plate structure described above.

[0022] In the above example, the battery box with this special plate structure has significant advantages in this battery device. When the battery device encounters external impact or compression, the metal plate or fiber-reinforced resin plate can disperse the impact force and avoid excessive local stress. The nylon particle foam board in the middle, with its suitable thickness and excellent energy absorption characteristics, effectively buffers the impact energy, prevents the battery cells from being damaged by external forces, greatly improves the safety and stability of the battery device, and ensures its reliable operation under various working conditions.

[0023] In some embodiments of this application, the battery box includes a bottom protective plate, which is composed of a plate structure.

[0024] In the above example, the bottom protective plate effectively resists bumps and stone impacts from the road surface. The metal plate or fiber-reinforced resin plate can withstand a certain impact force and disperse pressure, while the nylon particle foam board absorbs residual energy, reducing the impact on the battery cells inside the battery box. In the event of a severe collision or bottoming-out accident, the bottom protective plate structure, with its excellent compression deformation and impact resistance, provides critical protection for the battery box, preventing cell deformation or short circuits, ensuring the safety and stability of the battery device, and extending battery life.

[0025] In some embodiments of this application, the first direction is the up-down direction, the first layer is located above the third layer, and the third layer is a fiber-reinforced resin board.

[0026] In the example above, the third layer uses a fiber-reinforced resin board as the bottom plate of the base protection panel, which itself has certain corrosion resistance and good surface properties. Compared with other materials, it reduces the reliance on additional coating processes. In complex usage environments, multiple layers of coating are not required to achieve protective and decorative functions, simplifying the production process and avoiding the increased manpower, material, and time costs associated with coating construction. At the same time, it maintains the structural strength and impact resistance of the bottom protection panel, providing reliable protection for the bottom of the battery box, and effectively reducing manufacturing costs while ensuring the safety of the battery device.

[0027] The aforementioned battery devices can be applied to, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0028] Since the battery device of this application adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0029] This application also proposes an electrical device having the battery device described in the above embodiments.

[0030] According to embodiments of this application, the electrical device may include a battery device for storing or providing electrical energy.

[0031] In the above examples, by providing the battery device described above, the power device of this application can have high performance and a long service life.

[0032] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0033] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0034] Figure 1 These are exploded views of plate structures according to some embodiments of this application.

[0035] Figure 2 This is a schematic diagram of the structure of a battery device according to some embodiments of this application.

[0036] Figure 3 This is a schematic diagram of the structure of a vehicle according to some embodiments of this application.

[0037] Figure label:

[0038] 1000, Vehicle; 100, Battery unit; 20, Battery box; 201, Underbody protection plate; 200, Controller; 300, Motor; 10, Plate structure; 1, First layer plate; 2, Second layer plate; 3, Third layer plate; X, First direction. Detailed Implementation

[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0043] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0044] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0045] In power batteries, components such as the battery casing, as a key protective structure, play a crucial role. They are typically made of high-strength materials, possessing excellent sealing and impact resistance, effectively protecting the internal battery pack from external environmental influences. Another example is the battery casing's bottom guard, which prevents damage from impacts from below. For instance, when a vehicle travels over potholes, protruding stones, or speed bumps, the bottom guard cushions the impact, preventing the battery casing from being directly struck by hard objects and deforming or cracking. It also prevents the bottom of the battery casing from being scratched by sharp objects on the road, such as metal fragments or branches. Scratches can damage the battery casing's outer shell, compromising its seal and affecting the battery's normal operation and safety.

[0046] However, in related technologies, the compression deformation and impact resistance of the bottom guard plate still need to be improved.

[0047] Based on this, this application proposes a panel structure 10, which has a three-layer sandwich structure with the middle layer being a nylon granule foam board. The three layers have complementary material properties, optimize the energy transfer path, and greatly improve the compression deformation capacity and impact resistance of the entire panel structure 10. This can effectively ensure structural safety and stability, extend service life, and reduce maintenance costs.

[0048] The plate structure 10 of this application can be used as the bottom protective plate 201 of the battery box 20, which can effectively improve the compression deformation and impact resistance of the bottom protective plate 201.

[0049] Of course, based on the characteristics of the plate structure 10, such as its compressive deformation capacity and impact resistance, the plate structure 10 can also be used in other structures or equipment, and this application does not limit this.

[0050] Please refer to Figure 1 , Figure 1 These are exploded views of plate structures according to some embodiments of this application.

[0051] According to some embodiments of this application, the board structure 10 includes a first layer board 1, a second layer board 2 and a third layer board 3 stacked sequentially along a first direction X, wherein the second layer board 2 is a nylon particle foam board.

[0052] Nylon itself has high mechanical strength. As the base material of foam board, nylon granule foam board can maintain the lightweight characteristics of foam material while having good tensile and compressive strength. Compared with some ordinary foam materials, it has obvious strength advantages and its strength can maintain the stability of the structure when subjected to external forces.

[0053] Nylon granule foam boards also have good toughness and resilience, making them less prone to breakage after impact and able to quickly return to their original shape after the impact. This allows nylon granule foam boards to effectively absorb energy when subjected to instantaneous impact force, reducing the damage to objects caused by the impact.

[0054] Nylon granular foam materials can be supplied with granular foam boards of different performance characteristics to meet varying impact energy requirements. Specifically, the performance of nylon granular foam boards is closely related to their internal structure. The internal cell structure (including cell size, shape, and density) can be altered by adjusting the manufacturing process. Upon impact, the cells deform to absorb energy. Smaller, denser cell structures provide higher compressive strength and energy absorption capacity upon impact, making them suitable for applications requiring resistance to higher impact energy; while larger, looser cell structures are relatively softer and suitable for absorbing lower-energy impacts.

[0055] A nylon granule foam board, composed of nylon granule foam material, is sandwiched between a first layer (1) and a third layer (3), forming a composite structure. For example, upon impact, the first layer (1) is the first to contact the impact source, acting to disperse the impact force. If the first layer (1) is a metal plate, its high hardness and strength can rapidly diffuse the concentrated impact force over a larger area, resulting in a more uniform pressure distribution on the nylon granule foam board. Due to the dispersing effect of the first layer (1), the nylon granule foam board can absorb energy over a wider area, rather than experiencing excessive localized pressure that could lead to premature cell collapse and failure. The internal nylon granules and cells absorb impact energy through various mechanisms, including elastic deformation, plastic deformation, and cell collapse. The third layer (3) provides support and constraint. It prevents excessive deformation of the nylon granule foam board during energy absorption, especially under significant impact, avoiding irreversible excessive deformation or even rupture. This constraint allows the foam board to absorb energy within a relatively stable space, further improving its energy absorption efficiency.

[0056] Nylon granule foam board, made of nylon granule foam material, has good thermal insulation performance. Specifically, the nylon granule foam board contains a large number of tiny air bubbles, which can prevent heat transfer and give it a low thermal conductivity.

[0057] Nylon has corrosion-resistant properties, so nylon granule foam boards have strong resistance to most acids, alkalis, salts and other chemicals, and can still maintain good performance in some chemically corrosive environments.

[0058] Nylon granule foam boards can be molded using various methods, such as molding and extrusion, to produce products of various shapes and sizes to meet the requirements of different application scenarios. Furthermore, the processing is relatively simple and easy to operate and control.

[0059] Nylon is a recyclable material. Nylon granule foam boards can be recycled and reprocessed after being discarded, reducing environmental pollution and resource waste, which meets the requirements of sustainable development.

[0060] Nylon granule foam boards are lightweight. Specifically, the foam structure makes nylon granule foam boards have a low density, making them lightweight and easy to handle and install.

[0061] Nylon granule foam board has good dimensional stability: Under different temperature and humidity conditions, nylon granule foam board can maintain good dimensional stability and is not prone to deformation, shrinkage or expansion, thus ensuring the performance and service life of the product.

[0062] In the above example, the nylon particle foam board possesses unique advantages. Its internal cellular structure effectively withstands impacts, exhibiting excellent mechanical properties, combining high strength and high toughness. Upon impact, it absorbs energy and maintains structural stability through cellular deformation and the action of nylon particles. When the nylon particle foam board is sandwiched between two layers, the first layer 1 disperses the impact force, ensuring uniform stress on the foam board, fully utilizing its energy absorption characteristics, and preventing localized failure. The third layer 3 provides support and constraint, preventing excessive deformation of the foam board and ensuring the integrity of the overall structure. The complementary properties of the three layers optimize the energy transfer path, significantly enhancing the compressive deformation capacity and impact resistance of the entire board structure 10, effectively ensuring structural safety and stability, extending service life, and reducing maintenance costs.

[0063] In some embodiments of this application, the first layer 1 is a metal plate or a fiber-reinforced resin plate; and / or, the third layer 3 is a metal plate or a fiber-reinforced resin plate.

[0064] Example 1: The first layer 1 is a metal plate, the second layer 2 is a nylon granular foam board, and the third layer 3 is a metal plate. In this combination, the high strength and good thermal conductivity of the metal plate are combined with the energy absorption and shock absorption characteristics of the nylon granular foam board. When subjected to impact, the metal plate disperses the impact, the nylon granular foam board fully absorbs the energy, and the other metal plate plays a role in stabilizing support and protecting the internal components.

[0065] Example 2: The first layer 1 is a metal plate, the second layer 2 is a nylon granular foam board, and the third layer 3 is a fiber-reinforced resin board. The metal plate can withstand the impact of harsh external environments, the nylon foam board absorbs vibration and minor impact energy, and the fiber-reinforced resin board reduces the overall weight and provides additional strength and corrosion resistance.

[0066] Example 3: The first layer 1 is a fiber-reinforced resin board, the second layer 2 is a nylon granule foam board, and the third layer 3 is a metal board. The fiber-reinforced resin board can be flexibly designed according to the shape, the nylon granule foam board provides comfortable cushioning, and the metal board ensures that the overall structure is not easily damaged in the event of a large impact such as a collision with a vehicle.

[0067] Example 4: The first layer 1 is a fiber-reinforced resin board, the second layer 2 is a nylon granule foam board, and the third layer is a fiber-reinforced resin board. The fiber-reinforced resin board is easy to mold and lightweight, while the nylon granule foam board enhances impact resistance and shock absorption, improving the user's operating experience and protecting the internal structure of the equipment.

[0068] In the above example, when the first layer 1 and the third layer 3 are made of metal or fiber-reinforced resin respectively, the metal layer provides the structure with high strength and good thermal conductivity, while the fiber-reinforced resin provides lightweight and design flexibility. The nylon granule foam board sandwiched between them, with its unique cell structure and material properties, can effectively absorb impact energy and buffer vibrations when subjected to external forces. The synergistic effect of these three elements allows the entire board structure 10 to uniformly distribute stress during compression deformation, significantly improving impact resistance and enhancing product performance, safety, and service life.

[0069] In some embodiments of this application, the metal plate is a steel plate or an aluminum plate.

[0070] Example 1: The first layer 1 is a steel plate, the second layer 2 is a nylon granular foam board, and the third layer 3 is a steel plate.

[0071] Example 2: The first layer 1 is a steel plate, the second layer 2 is a nylon granular foam board, and the third layer 3 is an aluminum plate.

[0072] Example 3: The first layer 1 is a steel plate, the second layer 2 is a nylon granule foam board, and the third layer 3 is a fiber-reinforced resin board.

[0073] Example 4: The first layer 1 is an aluminum plate, the second layer 2 is a nylon granular foam board, and the third layer 3 is an aluminum plate.

[0074] Example 5: The first layer 1 is an aluminum plate, the second layer 2 is a nylon granular foam board, and the third layer 3 is a steel plate.

[0075] Example 6: The first layer 1 is an aluminum plate, the second layer 2 is a nylon particle foam board, and the third layer 3 is a fiber-reinforced resin board.

[0076] Example 7: The first layer 1 is a fiber-reinforced resin board, the second layer 2 is a nylon particle foam board, and the third layer 3 is an aluminum plate.

[0077] Example 8: The first layer 1 is a fiber-reinforced resin board, the second layer 2 is a nylon granule foam board, and the third layer 3 is a steel plate.

[0078] Example 9: The first layer 1 is a fiber-reinforced resin board, the second layer 2 is a nylon particle foam board, and the third layer 3 is a fiber-reinforced resin board.

[0079] In the above examples, when steel plates or aluminum plates are used as part of the composite plate structure 10, the steel plate has extremely high strength and hardness, and can maintain the stability of the structure even under enormous pressure and impact, providing a solid and reliable supporting foundation for the overall structure. The aluminum plate, on the other hand, has the outstanding characteristic of being lightweight, which can effectively reduce the weight of the overall structure. At the same time, the aluminum plate also has a certain degree of corrosion resistance, which is beneficial to extending its service life in specific environments.

[0080] In some embodiments of this application, the first layer 1 is a metal plate, and the third layer 3 is a fiber-reinforced resin plate, with the thickness of the third layer 3 being greater than the thickness of the first layer 1; or, the first layer 1 is a fiber-reinforced resin plate, and the third layer 3 is a metal plate, with the thickness of the first layer 1 being greater than the thickness of the third layer 3. That is, in the first direction X, the thickness of the fiber-reinforced resin plate is greater than the thickness of the metal plate.

[0081] In the above example, when the thickness of the fiber-reinforced resin board is greater than that of the metal board, the thicker fiber-reinforced resin board can more effectively disperse and buffer external impact forces. Its internal fiber structure can deform and absorb energy under pressure, slowing down the deformation process and enhancing the overall flexibility and stability of the structure. Although the metal board is thin, it provides high-strength support in critical areas such as those subjected to concentrated stress, working synergistically with the fiber-reinforced resin board. Upon impact, this combination of thicknesses guides the rational distribution of energy between different layers, effectively reducing localized stress concentration and preventing structural damage due to excessive compression or impact, thus greatly improving the impact and compressive strength of the board structure 10.

[0082] In some embodiments of this application, in the first direction X, the thickness D1 of the nylon particle foam board satisfies: 3mm≤D1≤15mm.

[0083] For example, the thickness D1 of the nylon granule foam board can be: 3mm, 5mm, 6mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, or 15mm.

[0084] In the above example, the thickness D1 of the nylon particle foam board meets the aforementioned conditions. The nylon particle foam board can provide suitable energy absorption and buffering according to different application scenarios, enabling it to adapt flexibly to different levels of impact. At a thinner thickness, it can provide a certain degree of impact protection for lightweight structures without occupying too much space, effectively dispersing and absorbing energy, and reducing the impact on the overall structure. As the thickness increases, its buffering and energy absorption capacity gradually increases. For medium and large structures or scenarios subject to greater impact forces, it can fully utilize its deformation energy absorption characteristics, greatly improving the compressive deformation resistance and impact resistance of the entire board structure 10, ensuring structural safety and stability.

[0085] In some embodiments of this application, the thickness D of the plate structure 10 in the first direction X satisfies: 5mm≤D1≤20mm.

[0086] For example, the thickness D of the plate structure 10 can be: 5mm, 7mm, 9mm, 11mm, 13mm, 15mm, 16mm, 17mm, 18mm, or 20mm.

[0087] In the above example, the thickness D of the plate structure 10 meets the aforementioned conditions. The plate structure 10 can adapt to various application scenarios. The thinner portion can meet the product requirements with strict space and weight constraints, providing a certain impact resistance without significantly increasing volume and weight, effectively buffering smaller impact forces and controlling the amount of compressive deformation. As the thickness increases, the overall impact resistance of the structure gradually improves, enabling it to withstand impacts of greater energy. When subjected to greater pressure or impact, the thickness advantage fully utilizes the characteristics of each layer, reducing deformation and damage, and ensuring the safety and stability of internal components or the overall structure.

[0088] In some embodiments of this application, the first layer 1 and the second layer 2 are heat-fused or glued together, and the second layer 2 and the third layer 3 are heat-fused or glued together.

[0089] In the above examples, thermoforming allows adjacent layers to form a strong and stable bond at the interface, effectively transferring stress and enhancing the overall integrity and continuity of the structure. This makes the synergistic effect of each layer more efficient when the plate structure 10 is subjected to compression and impact. Adhesive bonding, on the other hand, has good adaptability, can fill tiny gaps, further strengthen interlayer bonding, and reduce relative displacement between layers. Both thermoforming and adhesive bonding contribute to improving the stability of the plate structure 10, ensuring that it maintains excellent compressive deformation and impact resistance even under complex stress environments.

[0090] This application also proposes a battery device 100 having the plate structure 10 of the above embodiments.

[0091] Please refer to Figure 2 , Figure 2 This is a schematic diagram of the structure of a battery device according to some embodiments of this application.

[0092] According to some embodiments of this application, a battery device 100 includes a battery case 20 and battery cells installed in the battery case 20. The battery case 20 includes the plate structure 10 described in the above embodiments.

[0093] In the above example, the battery box 20 employing this special plate structure 10 in the battery device 100 has significant advantages. When the battery device 100 encounters external impact or compression, the metal plate or fiber-reinforced resin plate can disperse the impact force, avoiding excessive local stress. The nylon particle foam board in the middle, with its suitable thickness and excellent energy absorption characteristics, effectively buffers the impact energy, preventing damage to the battery cells due to external forces, greatly improving the safety and stability of the battery device 100, and ensuring its reliable operation under various working conditions.

[0094] In some embodiments of this application, the battery box 20 includes a bottom protective plate 201, which is formed by the plate structure 10.

[0095] In the above example, the bottom protective plate 201 effectively resists bumps and stone impacts from the road surface. The metal plate or fiber-reinforced resin plate can withstand a certain impact force and disperse pressure, while the nylon particle foam board absorbs residual energy, reducing the impact on the battery cells inside the battery box 20. In the event of a severe collision or bottoming-out accident, the bottom protective plate 201 of the plate structure 10 provides crucial protection for the battery box 20 with its good compression deformation and impact resistance, preventing cell deformation or short circuits, ensuring the safety and stability of the battery device 100, and extending battery life.

[0096] In some embodiments of this application, the first direction X is the up-down direction, the first layer 1 is located above the third layer 3, and the third layer 3 is a fiber-reinforced resin board.

[0097] In the above example, the third layer 3 uses a fiber-reinforced resin board as the lower plate of the bottom cover 201, which itself has certain corrosion resistance and good surface properties. Compared with other materials, it can reduce the reliance on additional coating processes. In complex usage environments, multiple layers of coating are not required to achieve protective and decorative functions, which simplifies the production process and avoids the increase in manpower, material resources, and time costs caused by coating construction. At the same time, it can maintain the structural strength and impact resistance of the bottom cover 201, providing reliable protection for the bottom of the battery box 20, and effectively reducing manufacturing costs while ensuring the safety of the battery device 100.

[0098] The aforementioned battery device 100 can be applied to, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among these, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., while spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0099] Since the battery device 100 of this application adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0100] This application also proposes an electrical device having the battery device 100 of the above embodiments.

[0101] According to the embodiments of this application, the power-consuming device may include a battery device 100, which is used to store or provide electrical energy.

[0102] In the above example, by providing the battery device 100 described above, the power supply device of this application can have higher performance and a longer service life.

[0103] The following description will be based on an embodiment of the present application, in which an electrical device is a vehicle 1000.

[0104] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0105] The battery cell, battery device 100, other components and operation of the power supply device according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0106] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A plate structure (10), characterized in that, include: A first layer (1), a second layer (2) and a third layer (3) are stacked sequentially along the first direction (X), wherein the second layer (2) is a nylon granule foam board.

2. The plate structure (10) according to claim 1, characterized in that, The first layer (1) is a metal plate or a fiber-reinforced resin plate; and / or, The third layer (3) is a metal plate or a fiber-reinforced resin plate.

3. The plate structure (10) according to claim 2, characterized in that, The metal plate is a steel plate or an aluminum plate.

4. The plate structure (10) according to claim 2, characterized in that, The first layer is the metal plate, the third layer is the fiber-reinforced resin plate, and the thickness of the third layer is greater than the thickness of the first layer, or... The first layer is the fiber-reinforced resin board, the third layer is the metal board, and the thickness of the first layer is greater than the thickness of the third layer.

5. The plate structure (10) according to claim 1, characterized in that, The thickness D1 of the nylon granular foam board satisfies: 3mm≤D1≤15mm.

6. The plate structure (10) according to claim 1, characterized in that, The thickness D of the plate structure (10) satisfies: 5mm≤D1≤20mm.

7. The plate structure (10) according to claim 1, characterized in that, The first layer (1) and the second layer (2) are connected by heat fusion or adhesive bonding, and the second layer (2) and the third layer (3) are connected by heat fusion or adhesive bonding.

8. A battery device (100), characterized in that, include: The battery box (20) and the battery cells installed in the battery box (20), the battery box (20) comprising the plate structure (10) according to any one of claims 1-7.

9. The battery device (100) according to claim 8, characterized in that, The battery box (20) includes a bottom protective plate (201), which is formed by the plate structure (10).

10. The battery device (100) according to claim 9, characterized in that, The first direction (X) is the up-down direction, the first layer (1) is located above the third layer (3), and the third layer (3) is a fiber-reinforced resin board.

11. An electrical appliance, characterized in that, The battery device (100) includes any one of claims 8-10.

Images