Battery tray, battery pack and electric device

Abstract

The application relates to the technical field of batteries, in particular to a battery tray, a battery pack and an electric equipment. The battery tray comprises a frame, the frame is formed with an accommodating cavity for accommodating a battery; and a glass fiber piece comprises an inner cavity structure, the inner cavity structure covers and is connected to the inner wall of the accommodating cavity. The inner cavity structure is made of glass fiber material, the density is low, the overall weight is significantly reduced, and the light weight of the electric equipment is facilitated. Since the glass fiber material is non-metal, the glass fiber material has excellent insulation performance, in the case of thermal runaway, the non-metal can effectively avoid the problem of arc and short circuit between the battery and the tray, so that the thermal safety protection performance of the battery pack is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery tray, battery pack and electrical equipment. Background Technology

[0002] With the continuous development of electric vehicles, the requirements for battery packs in electric vehicles are also constantly increasing. However, existing battery packs typically use high-density rolled steel housings, making the battery packs heavy, which is not conducive to achieving lightweighting of the battery pack and the entire vehicle, and results in lower energy density per unit mass of battery, affecting driving range. Furthermore, the rolled steel trays are usually protected by electrophoresis or powder coating in the cell mounting area. Under the combined action of high temperature and electrolyte, the insulation protection capability of the trays is greatly weakened, which may lead to short circuits or arcing between the battery modules and the trays, causing the battery pack to catch fire or even explode. Utility Model Content

[0003] This application provides a battery tray, a battery pack, and an electrical device to improve the energy density of the battery pack, avoid arcing and short circuit problems between the battery module and the battery tray, thereby improving the safety performance of the battery pack.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, this application provides a battery tray, comprising:

[0006] The frame has a receiving cavity for accommodating the battery;

[0007] A fiberglass component, comprising an inner cavity structure that covers and is connected to the inner wall of a receiving cavity.

[0008] In one possible implementation, the inner cavity structure is molded from glass fiber, or the inner cavity structure is molded from continuous glass fiber.

[0009] In one possible implementation, the frame is connected to the internal cavity structure via injection molding; and / or, the frame is injection molded from glass fiber and plastic material; and / or, the frame is injection molded from chopped glass fiber and plastic material; and / or, the frame is a thermoplastic part; and / or, the internal cavity structure and the frame are integrally injection molded.

[0010] In one possible implementation, the thermal conductivity of the frame is greater than or equal to 0.20 W / (m•K) and less than or equal to 0.30 W / (m•K).

[0011] In one possible implementation, the frame includes a bottom frame and a border, with the bottom frame connecting to the border to form a receiving cavity.

[0012] In one possible implementation, the bottom frame has a honeycomb-shaped perforated structure; and / or, the frame further includes partitions disposed in the receiving cavity to divide the receiving cavity into multiple sub-cavities.

[0013] In one possible implementation, the frame is provided with an explosion-proof valve mounting hole corresponding to the sub-cavity, and the explosion-proof valve mounting hole is connected to the corresponding sub-cavity.

[0014] In one possible implementation, the battery tray further includes a base plate disposed on the side of the frame away from the inner cavity structure and connected to the frame, and the orthographic projection of the cavity onto the base plate is within the range of the base plate along the depth direction of the cavity; and / or, the battery tray further includes a power distribution structure connected to the frame.

[0015] In one possible implementation, the power distribution structure is connected to the frame via a connector; and / or, along the depth direction of the receiving cavity, the orthographic projection of the power distribution structure onto the plane of the base plate lies within the range of the base plate; and / or, the side of the power distribution structure away from the inner cavity structure is connected to the base plate and the frame via a connector; and / or, the battery tray further includes a buffer layer disposed between the power distribution structure and the base plate, the connector passing through the base plate, the buffer layer, and the power distribution structure, and fixedly connected to the frame to connect the base plate, the buffer layer, the power distribution structure, and the frame; and / or, the frame is provided with a reinforcing part for connecting the connector, and the reinforcing part is provided with a metal insert.

[0016] In one possible implementation, the base plate is provided with a lifting part, the lifting part is provided with a lifting hole, the frame is provided with a lifting lug, the lifting lug corresponds to the lifting part, and the lifting lug is provided with a lifting lug hole that communicates with the lifting hole; and / or, the lifting lug is provided with a metal insert; and / or, the base plate and the frame are connected by a connector; and / or, the base plate is made of metal.

[0017] In one possible implementation, the fiberglass component further includes a covering layer disposed on at least one surface of the base plate.

[0018] On the other hand, this application provides a battery pack, including a battery module and the aforementioned battery tray, wherein the battery module is disposed in the receiving cavity of the battery tray.

[0019] In one possible implementation, the battery pack further includes a cooling component disposed on the side of the battery module away from the battery tray; and / or, the battery pack further includes a heating component disposed between the battery module and the cooling component; and / or, the battery pack further includes thermally conductive adhesive disposed between the heating component and the cooling component, the thermally conductive adhesive bonding and fixing the heating component and the cooling component; and / or, the battery pack further includes an insulation component disposed on the side of the cooling component away from the battery module; and / or, the battery pack further includes a distribution box assembly disposed in the battery tray and connected to the power distribution structure; and / or, the battery pack further includes a high-voltage component disposed in the power distribution structure of the battery tray, with one end extending outward toward the outside of the battery pack; and / or, the battery pack further includes a lifting component passing through the lifting lug hole and lifting hole of the battery tray; and / or, the battery pack further includes an explosion-proof valve disposed in the explosion-proof valve mounting hole of the battery tray.

[0020] In another aspect, this application provides an electrical device including the aforementioned battery pack.

[0021] In one possible implementation, the battery pack's lifting components pass through the lifting lugs and lifting holes of the battery tray and are fixedly connected to the electrical equipment.

[0022] This application provides a battery tray, battery pack, and electrical equipment. The internal structure of the fiberglass component is made of fiberglass material, which has a low density and significantly reduces the overall weight compared to traditional roll-formed steel trays, contributing to the lightweight design of the electrical equipment. Furthermore, by using fiberglass material in the internal structure, the non-metallic fiberglass material provides excellent insulation. In the event of thermal runaway, the non-metallic contact surface effectively prevents arcing and short circuits between the battery and the tray, thereby improving the thermal safety performance of the battery pack and the electrical equipment containing it. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is one of the structural schematic diagrams of the battery tray provided in the embodiments of this application;

[0025] Figure 2 This is a second schematic diagram of the structure of the battery tray provided in the embodiments of this application;

[0026] Figure 3 for Figure 1A partially exploded structural diagram of the battery tray shown.

[0027] Figure 4 for Figure 1 The diagram shows the structure of the battery tray without its inner cavity.

[0028] Figure 5 This is a schematic diagram of the battery pack provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Battery tray; 10-Frame; 11-Receiving cavity; 111-Sub-cavity; 12-Bottom frame; 13-Side frame; 14-Explosion-proof valve mounting hole; 15-Lifting lug; 151-Lifting lug hole; 16-Separator; 20-Fiberglass component; 21-Internal cavity structure; 22-Side sleeve; 30-Base plate; 31-Lifting part; 311-Lifting hole; 40-Power distribution structure; 50-Connector; 60-Buffer layer; 200-Battery pack; 201-Battery module; 202-Cooling component; 203-Heating component; 204-Thermal conductive adhesive; 205-Insulation component; 206-Power distribution box assembly; 207-High voltage component; 208-Lifting component; 209-Explosion-proof valve. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] With the continuous development of electric vehicles, the requirements for battery packs in electric vehicles are also constantly increasing. However, existing battery packs typically use high-density rolled steel housings, making the battery packs heavy, which is not conducive to achieving lightweighting of the battery pack and the entire vehicle, and results in lower energy density per unit mass of battery, affecting driving range. Furthermore, the rolled steel trays are usually surface protected by electrophoresis or powder coating in the battery mounting area. Under the combined action of high temperature and electrolyte, the insulation protection capability of the trays is greatly weakened, which may lead to short circuits or arcing between the battery modules and the trays, causing the battery pack to catch fire or even explode.

[0033] To overcome the shortcomings of existing technologies, after repeated consideration and verification, the inventors discovered that by designing the tray as a composite structure, using a glass fiber molded inner cavity and injection-molded frame on a steel frame base, they could ensure that the battery mounting area is made of non-metallic (glass fiber) material, preventing arcing and short circuits between the battery and the tray in the event of thermal runaway. Simultaneously, they could ensure that the structure is primarily composed of glass fiber and plastic, resulting in a lower density compared to traditional roll-formed steel trays. Furthermore, the steel frame base plate provides a certain degree of protection against stone impacts, bottoming, and ball impacts. Due to the high melting point and strength of steel, it also prevents the battery module from softening and melting through the base plate, thus preventing it from detaching from the bottom during heat diffusion, fire, or external fire. Moreover, the low thermal conductivity of glass fiber and plastic materials gives the tray itself excellent insulation properties, eliminating the need for insulation cotton, mica, and other materials inside the packaging, thus reducing costs.

[0034] In view of this, this application provides a battery tray, comprising:

[0035] The frame has a receiving cavity for accommodating the battery;

[0036] The fiberglass component includes an inner cavity structure that covers and connects to the inner wall of the receiving cavity. The inner cavity structure of the composite molding layer uses fiberglass material, which has a low density and significantly reduces overall weight compared to traditional rolled steel trays. This not only increases the energy density of the battery pack but also contributes to the lightweighting of electrical equipment, improving its range and energy efficiency. By using fiberglass material in the composite molding layer to form the inner cavity structure, the non-metallic nature of fiberglass provides excellent insulation. In the event of thermal runaway, the non-metallic contact surface effectively prevents arcing and short circuits between the battery and the tray, thereby improving the thermal safety of the battery pack and the electrical equipment containing it. Due to the low thermal conductivity of fiberglass, the battery tray itself possesses good insulation properties, reducing heat loss in low-temperature environments, lowering the energy consumption of the battery pack, and improving its operating efficiency.

[0037] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0038] The specific structure of the battery tray and various possible implementation methods are described in detail below.

[0039] Figure 1 This is one of the structural schematic diagrams of the battery tray provided in the embodiments of this application. Figure 2 This is a second schematic diagram of the battery tray provided in an embodiment of this application. Figure 3 for Figure 1The diagram shows a partial exploded view of the battery tray. Figure 4 for Figure 1 The diagram shows the structure of the battery tray with the inner cavity removed. Figure 5 This is a schematic diagram of the battery pack provided in an embodiment of this application.

[0040] like Figure 1 and Figure 2 As shown in the embodiment of this application, the battery tray 100 is used in a battery pack. The battery tray 100 is used to support the battery module.

[0041] like Figure 3 As shown, the battery tray 100 includes a frame 10 and a fiberglass component 20. The fiberglass component 20 is connected to the frame 10.

[0042] The fiberglass component 20 includes an inner cavity structure 21. The frame 10 has a receiving cavity 11. The receiving cavity 11 is used to receive a battery. The inner cavity structure 21 covers and is connected to the inner wall of the receiving cavity 11.

[0043] Fiberglass, with its lower density compared to traditional metals, significantly reduces the overall weight of the battery tray, contributing to improved energy efficiency and driving range of electrical devices. Simultaneously, fiberglass possesses excellent electrical insulation properties, effectively preventing short circuits between battery cells or between cells and the tray, thus enhancing battery pack safety. Furthermore, fiberglass exhibits strong corrosion resistance, resisting erosion from chemicals, moisture, and other environmental factors, reducing the need for additional anti-corrosion treatments and extending the tray's lifespan.

[0044] Specifically, the inner cavity structure 21 completely covers the inner wall of the receiving cavity 11 and has an opening to facilitate the insertion of the battery into the receiving cavity 11.

[0045] The inner cavity structure 21 of the fiberglass component 20 is made of fiberglass material, which has a low density and significantly reduces the overall weight compared to traditional rolled steel trays. This not only increases the energy density of the battery pack but also contributes to the lightweighting of electrical equipment, improving its range and energy efficiency. By using the fiberglass material in the fiberglass component 20 to form the inner cavity structure 21, the non-metallic fiberglass material provides excellent insulation. In the event of thermal runaway, the non-metallic contact surface of the battery tray 100 effectively prevents arcing and short circuits between the battery and the battery tray 100, thereby improving the thermal safety protection performance of the battery pack and the electrical equipment containing it. The use of composite materials reduces the need for additional anti-corrosion treatments and extends the service life of the tray. Due to the low thermal conductivity of fiberglass material, the battery tray 100 itself has good thermal insulation properties, reducing heat loss in low-temperature environments, lowering the energy consumption requirements of the battery pack, and improving the working efficiency of the battery pack.

[0046] In one possible implementation, the battery tray 100 also includes a base plate 30. The base plate 30 is connected to the side of the frame 10 away from the inner cavity structure 21. The base plate 30 provides protection to prevent damage to the battery tray 100 from impacts such as stone blows, bottoming out, or ball impacts.

[0047] Along the depth direction of the receiving cavity 11, the orthographic projection of the receiving cavity 11 onto the base plate 30 is located within the range of the base plate 30, thereby completely supporting the battery and preventing the glass fiber component 20 from softening and melting through in the event of heat diffusion, fire or external fire, so that the battery falls out of the receiving cavity 11 and detaches from the battery tray 100.

[0048] The inner wall of the receiving cavity 11 is covered by the inner cavity structure 21, and a stable whole is formed by the connection between the base plate 30 and the frame 10. This makes the orthographic projection of the receiving cavity 11 located within the orthographic projection range of the base plate 30. The base plate 30 can effectively support the battery in the inner cavity structure 21, ensuring the structural integrity of the tray when subjected to external impact, and providing good mechanical protection.

[0049] In one possible implementation, the inner cavity structure 21 is molded from glass fiber.

[0050] Compression molding allows for the manufacture of complex shapes, enabling the customization of the shape and size of the internal cavity structure 21 according to design requirements, which helps optimize the arrangement of battery modules and the space utilization of the tray. Glass fiber compression molding provides excellent mechanical strength and rigidity. Despite its light weight, its strength is sufficient to withstand the weight of the battery module and external impacts, ensuring the structural integrity and durability of the battery tray 100. The glass fiber compression-molded internal cavity structure 21 exhibits good thermal stability under high-temperature conditions, capable of withstanding the heat generated by the battery during charging and discharging, reducing the risk of thermal runaway.

[0051] Glass fiber molding technology is relatively mature, has high production efficiency, is suitable for large-scale production, helps reduce manufacturing costs, and ensures consistent product quality.

[0052] In one possible implementation, the inner cavity structure 21 is molded from continuous glass fiber.

[0053] Compared to chopped glass fibers, continuous glass fibers can transfer loads more effectively, thereby reducing stress concentration, providing higher tensile strength and rigidity, and improving the overall strength and durability of the material. Continuous glass fiber compression molding can create a more uniform and consistent material structure, reducing weaknesses and defects in the material, and contributing to improved reliability and service life of the internal cavity structure 21.

[0054] Compared to metallic materials, continuous glass fiber materials have a lower density, significantly reducing the overall weight of the battery tray 100 and improving the energy efficiency and driving range of electric vehicles. Continuous glass fiber possesses excellent electrical insulation properties, effectively preventing electrical short circuits between cells or between cells and the tray, improving battery pack safety, especially in high-voltage applications. Continuous glass fiber materials exhibit good corrosion resistance, resisting erosion from chemicals, moisture, and other environmental factors, reducing the need for additional anti-corrosion treatments and extending the tray's lifespan. The molded internal cavity structure 21 of continuous glass fiber exhibits good thermal stability under high-temperature conditions, able to withstand the heat generated during battery charging and discharging, reducing the risk of thermal runaway.

[0055] In one possible implementation, the frame 10 is connected to the inner cavity structure 21 via an injection molding process.

[0056] Specifically, the molded inner cavity structure 21 is sent to the injection molding equipment along with the injection molding material, and the frame 10 is formed by the injection molding process, thereby combining the frame 10 with the inner cavity structure 21.

[0057] Injection molding enables a tight bond between the frame 10 and the inner cavity structure 21, forming a unified whole. This improves the overall strength and stability of the battery tray 100, allowing it to better withstand mechanical stress and vibration. Directly connecting the frame 10 and the inner cavity structure 21 through injection molding reduces subsequent assembly steps and processes. This simplifies the production process and reduces the possibility of errors during assembly. Injection molding offers high-precision manufacturing capabilities, ensuring a precise fit between the frame 10 and the inner cavity structure 21, contributing to improved quality consistency and reliability of the battery tray 100. Simultaneously, injection molding achieves excellent sealing, reducing the entry of moisture, dust, and other contaminants into the battery tray 100, thereby improving the battery pack's durability and reliability. Injection molding is suitable for mass production, enabling the manufacture of complex structures in a shorter cycle time, improving production efficiency, reducing manufacturing costs, and making the production of the battery tray 100 more economical.

[0058] Injection molding allows for the use of a variety of materials in the manufacture of the frame 10. Materials with specific properties (such as heat resistance and chemical resistance) can be selected based on specific needs, enabling the tray design to be optimized for different application scenarios. Injection molding also allows for the design of complex geometries and detailed features, allowing the frame 10 to be optimized as needed to meet specific functional requirements and space constraints. By selecting appropriate injection molding materials, the frame 10 can provide additional shock absorption and noise control functions, further protecting the battery module from external impacts and vibrations.

[0059] In one possible implementation, the frame 10 is injection molded from glass fiber and plastic material.

[0060] Specifically, in the injection molding process, a mixture of glass fiber and plastic material is injected into the mold cavity, so that the glass fiber and plastic material are combined to form a frame 10.

[0061] Fiberglass material itself has a low density, and injection molding can further optimize its use, achieving lightweight design. The injection molding process tightly bonds the fiberglass and plastic materials in the frame 10, forming a unified whole. This utilizes the high strength of the fiberglass and the toughness of the plastic material to provide the frame 10 with excellent mechanical properties and structural strength. Fiberglass material also possesses good electrical insulation properties; combined with the plastic material, it effectively prevents electrical short circuits, improving the safety of the battery pack.

[0062] Fiberglass and plastic materials typically have good corrosion resistance, resisting the erosion of chemicals, moisture, and other environmental factors. This combination of materials extends the product's lifespan and reduces the need for additional anti-corrosion treatments.

[0063] Injection molding allows for the manufacture of complex shapes and details, enabling the geometry of the frame 10 to be designed to meet specific needs. This flexibility helps optimize the space utilization and functional integration of the battery tray 100. Injection molding achieves excellent sealing, preventing moisture, dust, and other contaminants from entering the battery tray 100, thus improving the reliability and durability of the battery pack. Injection molding is a highly efficient manufacturing process suitable for mass production. High-quality frames 10 can be produced in a shorter cycle time, reducing manufacturing costs. The selection of injection molding materials can be optimized for shock absorption and noise control, providing additional protection and reducing the impact of external shocks and vibrations on the battery module.

[0064] In one possible implementation, the frame 10 is injection molded from chopped glass fiber and plastic material.

[0065] Chopped glass fiber reinforcement significantly improves the strength and rigidity of composite materials during injection molding. The uniform distribution of chopped glass fibers within the matrix effectively bears and disperses external loads, enhancing the overall mechanical properties of frame 10. Injection molding allows for the fabrication of complex geometries and intricate details. The use of chopped glass fiber reinforcement does not limit design complexity, enabling frame 10 to be optimized to meet specific requirements.

[0066] Using chopped glass fiber reinforcement reduces material costs, while injection molding offers high production efficiency suitable for mass production; this combination helps lower overall manufacturing costs. Chopped glass fiber reinforcement exhibits good thermal stability at high temperatures, able to withstand the heat generated during battery charging and discharging, reducing the risk of thermal runaway. Chopped glass fiber reinforced composites typically possess excellent corrosion resistance, resisting the erosion of chemicals, moisture, and other environmental factors, extending the service life of the frame 10. By selecting suitable matrix materials, chopped glass fiber reinforced composites can provide excellent shock absorption and noise control, further protecting the battery module from external impacts and vibrations.

[0067] In one possible implementation, the frame 10 is a thermoplastic part, that is, the material injected into the frame 10 is a thermoplastic material.

[0068] The combination of injection molding and thermoplastic materials offers high production efficiency, making it suitable for large-scale manufacturing. It enables the production of high-quality parts in a shorter cycle time, reducing manufacturing costs. Thermoplastic materials typically possess good strength and toughness, allowing them to withstand mechanical stress and impact. This contributes to the high durability and reliability of frame 10 during use. Furthermore, the lower density of thermoplastic materials compared to metals allows for lightweight design.

[0069] Thermoplastic materials become soft and easily molded when heated, and return to their hardness upon cooling. This property allows for the creation of complex geometries and detailed features, enabling designers to optimize frames to specific needs.10 Thermoplastic materials can be made available in a variety of colors by adding pigments to meet diverse aesthetic requirements. This property contributes to brand recognition and product aesthetics. Thermoplastic materials can be heated and reshaped multiple times, making them highly recyclable. Using thermoplastic materials helps reduce waste and environmental impact, aligning with sustainable development trends.

[0070] Many thermoplastic materials exhibit good chemical resistance, resisting the erosion of greases, solvents, and other chemicals. This property extends the service life of frame 10 and reduces maintenance requirements. Many thermoplastic materials also demonstrate good thermal stability within a certain temperature range, able to withstand the heat generated during battery charging and discharging, reducing the risk of thermal runaway.

[0071] In one possible implementation, the plastic material injected into frame 10 is PP (Polypropylene).

[0072] In one possible implementation, the inner cavity structure 21 and the frame 10 are integrally injection molded.

[0073] One-piece molding simplifies the manufacturing process because it eliminates the need for additional assembly steps. This not only shortens production cycles but also reduces manufacturing costs and increases production efficiency. Since it eliminates the need to assemble multiple parts, one-piece injection molding reduces potential errors during assembly, improving product consistency and quality.

[0074] Integrated design optimizes material usage and eliminates unnecessary overlaps and connections, resulting in lightweight construction. One-piece injection molding eliminates seams and connection points between different components, forming a seamless monolithic structure that improves overall structural integrity and strength, reducing potential weaknesses caused by poor connections. The elimination of gaps at joints provides better sealing, reducing the ingress of moisture, dust, and other contaminants into the structure, thus improving system reliability and durability. One-piece injection molding allows for the design of complex geometries and detailed features, enabling designers to optimize the shape and function of the fiberglass component 20 according to specific needs.

[0075] like Figure 4 As shown, in one possible implementation, the frame 10 includes a bottom frame 12 and a side frame 13. The bottom frame 12 connects to the side frame 13 to form a receiving cavity 11. Simultaneously, the bottom frame 12 is also connected to the base plate 30 and the inner cavity structure 21.

[0076] The connection between the base frame 12, the base plate 30, and the inner cavity structure 21 forms a robust foundation, providing excellent support and stability. The frame 13 surrounds the base frame 12 to form a receiving cavity 11, further enhancing the rigidity and torsional strength of the overall frame 10. Through the combined design of the base frame 12 and the frame 13, the load can be distributed more evenly across the entire structure, reducing local stress concentration and improving the durability and service life of the frame 10.

[0077] The frame 13 surrounding the receiving cavity 11 provides an additional protective layer, enabling more effective absorption and dispersion of external impact forces, thus improving the impact resistance of the battery tray 100 under collision or vibration conditions. The frame 13 surrounding the receiving cavity 11 provides a closed boundary, which helps to improve sealing and prevent moisture, dust and other contaminants from entering the interior of the battery tray 100.

[0078] The design of the frame 13 can be optimized according to the shape of the receiving cavity 11 to ensure a compact arrangement of the battery modules. This optimized space utilization helps to improve the energy density of the battery pack. The frame 13 not only provides structural support, but can also be used to integrate other functional components, such as connectors, heat sinks, or decorative parts, improving the aesthetics and functionality of the overall design.

[0079] In one possible implementation, the bottom frame 12 is a hollow structure.

[0080] The hollow structure significantly reduces the weight of the base frame 12 by removing excess material, which helps improve energy efficiency and driving range. By reducing the use of materials, the hollow design not only reduces production costs but also reduces resource consumption.

[0081] The perforated structure allows for airflow, improving the heat dissipation performance of the frame 10 and helping to maintain a better operating temperature for the battery. By optimizing the shape and distribution of the perforations, efficient load transfer and distribution can be achieved, maintaining or even improving the strength and rigidity of the structure. Optimizing the perforated structure also enables better vibration and noise control, reducing the impact of external impacts on the battery module.

[0082] The openwork design offers greater design freedom, allowing for customization to meet specific mechanical and thermal management needs. This flexibility enables designers to optimize the framework to suit particular applications. The openwork areas can be used to integrate other functional components, such as cable management, sensor mounting, or other auxiliary equipment, enhancing the overall functionality of the design.

[0083] In one possible implementation, the bottom frame 12 has a honeycomb-shaped hollow structure.

[0084] Honeycomb structures offer exceptional strength and rigidity while maintaining lightweight design. Their hexagonal cell design effectively distributes and transfers loads, reducing stress concentration. Through optimized geometry, honeycomb structures maximize material utilization without sacrificing performance, reducing production costs and material waste. Upon impact, honeycomb structures effectively absorb energy, providing excellent cushioning and protection, thus increasing safety. The geometric characteristics of honeycomb structures contribute to vibration and noise reduction, minimizing the impact of external shocks and vibrations on the system, improving comfort and durability. The honeycomb perforated design significantly reduces material usage, thereby lowering overall weight and improving energy efficiency and driving range. The honeycomb perforated structure allows for free air and fluid flow, improving heat dissipation. Honeycomb structures can be customized to specific needs, adjusting cell size and shape to optimize performance and functionality, allowing designers to optimize for different application scenarios.

[0085] In one possible implementation, the fiberglass component 20 further includes a side sleeve 22. The side sleeve 22 is connected to the outer periphery of the inner cavity structure 21 and to the side of the frame 13 opposite to the bottom frame 12. The side sleeve 22 is used to cooperate with the inner cavity structure 21 to further improve the thermal safety protection performance of the battery tray 100.

[0086] The sleeve 22 is also provided with threaded holes for connecting to the cooling assembly 202 or the insulation component 205.

[0087] In one possible implementation, the fiberglass component 20 further includes a coating layer disposed on at least one surface of the base plate 30 to further enhance corrosion resistance.

[0088] In one possible implementation, the frame 10 further includes a partition 16. The partition 16 is disposed in the receiving cavity 11 to divide the receiving cavity 11 into a plurality of sub-cavities 111.

[0089] By dividing the housing 11 into multiple sub-cavities 111, the temperature of each sub-cavity 111 can be more precisely controlled, which helps optimize the design of the thermal management system, ensuring that each battery cell operates within a better temperature range, thus improving battery performance and lifespan. Dividing the housing 11 into multiple sub-cavities 111 using separators 16 enables modular design, allowing for more flexible battery configurations and easier maintenance, replacement, or upgrades. Dividing the housing 11 into multiple sub-cavities 111 simplifies fault diagnosis and maintenance. Separators 16 effectively isolate battery cells, preventing thermal runaway or fault propagation between cells, thus improving the overall safety of the battery pack. Separators 16 act as a physical barrier to prevent electrical short circuits between battery cells, contributing to improved electrical safety of the battery pack.

[0090] The divider 16 provides additional support and stability, enhancing the overall structural strength of the pallet. This support helps maintain the stability of the battery cells during transport and handling. The divider 16 acts as a buffer, reducing the direct impact of vibration and shock on the battery cells, thereby improving the durability and reliability of the battery pack. The divider 16 also helps optimize the arrangement and layout of the battery cells, improving the pallet's space utilization and energy density.

[0091] In one possible implementation, the frame 13 is provided with an explosion-proof valve mounting hole 14 corresponding to the sub-cavity 111. The explosion-proof valve mounting hole 14 communicates with the corresponding sub-cavity 111.

[0092] The design of the explosion-proof valve mounting hole 14 facilitates the installation and replacement of the explosion-proof valve, simplifies the maintenance process, and provides the possibility of quick replacement when needed. By aligning the explosion-proof valve mounting hole 14 with the sub-cavities 111, designers can optimize the layout of the explosion-proof valve according to specific safety and performance requirements, facilitating customized solutions. By placing an explosion-proof valve in each sub-cavity 111, independent pressure management of each battery cell can be achieved. This facilitates rapid response in abnormal situations and prevents pressure buildup throughout the battery tray 100.

[0093] The explosion-proof valve automatically releases pressure when the pressure inside the battery cell becomes too high, preventing the battery pack from rupturing or exploding and improving battery pack safety. The presence of the explosion-proof valve effectively prevents a chain reaction caused by the failure of a single battery cell (such as thermal runaway), thereby protecting other battery cells and the entire battery pack.

[0094] In one possible implementation, the battery tray 100 also includes a power distribution structure 40. The power distribution structure 40 is adjacent to the inner cavity structure 21, connected to the frame 10, and has space for placing the power distribution box assembly 206, which communicates with the receiving cavity 11.

[0095] The power distribution structure 40 is used to house components that may require subsequent maintenance, inspection, or replacement, making it easier for maintenance personnel to perform repairs, tests, and replacements, simplifying the maintenance process and reducing downtime. The presence of the power distribution structure 40 allows operators to complete necessary tasks quickly and efficiently, improving overall operational efficiency. Operating through the power distribution structure 40 reduces the need to disassemble the entire battery tray 100, thereby lowering the probability of damaging other components or causing safety issues during maintenance. Operations performed through the power distribution structure 40 typically do not require complex tools or equipment, thus reducing operational complexity and the need for specialized skills.

[0096] The power distribution structure 40 makes routine inspections and minor repairs faster and more economical, reducing maintenance costs and time. The power distribution structure 40 can be customized to meet specific application needs, ensuring good accessibility without compromising overall structural strength and functionality. In addition to facilitating maintenance, the power distribution structure 40 can also be used for system upgrades and expansions, allowing the addition of new functions or replacement of components without replacing the entire battery tray 100.

[0097] In one possible implementation, the power distribution structure 40 is connected to the frame 10 via a connector 50.

[0098] The connector 50 supports a modular design, allowing the power distribution structure 40 to be replaced or upgraded as an independent module, thus improving the system's scalability and flexibility. Through the connection via the connector 50, the power distribution structure 40 can be designed more flexibly, allowing for adjustments and customization according to specific needs, helping to adapt to different design requirements and application scenarios. The connector 50 simplifies the installation and disassembly of the power distribution structure 40, significantly reducing operation time and complexity. Because the connector 50 simplifies the operation of the power distribution structure 40, maintenance and repair costs are reduced, minimizing downtime and labor costs.

[0099] The connector 50 helps to distribute stress between the power distribution structure 40 and the frame 10, reducing potential damage or failure due to stress concentration. Through the secure connection of the connector 50, the power distribution structure 40 can remain stable under various operating conditions, reducing loosening or damage due to vibration or impact, and improving the overall reliability of the system.

[0100] In one possible implementation, the connector 50 is a bolt, which securely connects the power distribution structure 40 and the frame 10 through threads on the power distribution structure 40 and the frame 10.

[0101] In one possible implementation, the orthographic projection of the power distribution structure 40 onto the plane of the base plate 30 is located within the depth direction of the receiving cavity 11.

[0102] This design ensures that the power distribution structure 40 does not extend beyond the boundary of the base plate 30 in the vertical direction, thereby maximizing the use of the space inside the tray and helping to maintain the compactness of the overall design.

[0103] The power distribution structure 40 is located within the projection area of ​​the base plate 30, meaning it is protected by the base plate 30, reducing the direct impact of the external environment. This protection helps prevent the intrusion of dust, moisture, and other contaminants, improving the system's durability. This arrangement helps maintain the overall strength and rigidity of the frame 10 because the power distribution structure 40 does not interfere with or weaken the external profile of the frame 10.

[0104] This design of the power distribution structure 40 maintains the consistency and neatness of the pallet's appearance, avoiding irregular protrusions and thus enhancing the product's aesthetics. By keeping the power distribution structure 40 within the projection range of the base plate 30, the design and manufacturing process is simplified, reducing complexity and potential manufacturing errors. Since the power distribution structure 40 does not extend beyond the boundaries of the base plate 30, the pallet is easier to handle during transportation and installation, reducing damage caused by protrusions. This design also reduces the risk of collisions between external objects and the power distribution structure 40, lowering safety hazards during operation and use.

[0105] In one possible implementation, the side of the power distribution structure 40 away from the inner cavity structure 21 is connected to the base plate 30 and the frame 10 via a connector 50.

[0106] The connection of the power distribution structure 40 to the base plate 30 and frame 10 via connector 50 provides additional support and stability, helping to keep the power distribution structure 40 stable during operation and reducing vibration and displacement. This design helps maintain the integrity and sealing of the internal cavity structure 21, as fixing operations on the power distribution structure 40 do not directly affect the main body of the internal cavity structure 21. The design away from the internal cavity structure 21 reduces interference with the internal components during maintenance, lowering the risk of damage or misoperation.

[0107] The power distribution structure 40, connected via connector 50, can be adjusted and customized to specific needs, providing greater design flexibility to adapt to different application scenarios. The use of connector 50 helps to distribute stress between the power distribution structure 40 and the base plate 30 and frame 10, reducing potential damage or failure due to stress concentration. This connection method of the power distribution structure 40 supports modular design, allowing it to be replaced or upgraded as an independent module, improving the system's scalability and flexibility. Connector 50 simplifies the installation and disassembly of the power distribution structure 40, reducing operation time and complexity, especially in situations requiring frequent maintenance.

[0108] In one possible implementation, the connector 50 is a long bolt. Through the threads on the base plate 30, the frame 10 and the power distribution structure 40, the long bolt passes through the base plate 30 and the power distribution structure 40 and is located on the frame 10, thereby fixing the base plate 30, the frame 10 and the power distribution structure 40 together.

[0109] In one possible implementation, the battery tray 100 further includes a buffer layer 60. The buffer layer 60 is disposed between the power distribution structure 40 and the base plate 30. The connector 50 passes through the base plate 30, the buffer layer 60, and the power distribution structure 40, and is fixedly connected to the frame 10 to connect the base plate 30, the buffer layer 60, the power distribution structure 40, and the frame 10.

[0110] Optionally, the buffer layer 60 is a buffer pad. To prevent abnormal noise or collision between the base plate 30 and the power distribution structure 40 under certain operating conditions, a rectangular buffer pad is attached to the outside of the power distribution structure 40, and bolts are passed through it to fix it, thereby reducing abnormal noise and collision. The material of the buffer pad can be adjusted according to the specifications and torque value of the long bolts.

[0111] The buffer layer 60 effectively absorbs and disperses external shocks and vibrations, reducing direct impact on the power distribution structure 40 and the base plate 30, thus helping to protect the power distribution structure 40 and other internal components and extending their service life. The buffer layer 60 provides additional support, helping to maintain the stability of the power distribution structure 40 during transportation and operation, preventing loosening and displacement. By absorbing vibration, the buffer layer 60 reduces noise generated during operation, improving the system's quietness and increasing user comfort. The presence of the buffer layer 60 prevents direct contact between the power distribution structure 40 and the base plate 30, reducing friction and wear, thereby protecting internal components from damage. In the event of a collision or other accident, the buffer layer 60 provides additional protection, reducing damage to the internal components of the battery tray 100 and improving the overall system safety.

[0112] The buffer layer 60 provides flexibility during installation, allowing for easier alignment and securing of the power distribution structure 40, simplifying installation and maintenance. The buffer layer 60 can serve as a transition layer between different materials, reducing stress and deformation caused by differences in their coefficients of thermal expansion. Some buffer materials possess good thermal insulation properties, which can help manage heat to some extent and prevent heat conduction between the power distribution structure 40 and the base plate 30.

[0113] In one possible implementation, the base plate 30 is provided with a lifting part 31. The lifting part 31 is provided with a lifting hole 311. The frame 10 is provided with a lifting lug 15. The lifting lug 15 corresponds to the lifting part 31, and the lifting lug 15 is provided with a lifting lug hole 151 that communicates with the lifting hole 311.

[0114] The design of the lifting section 31 and lifting lugs 15 allows the battery tray 100 to be easily handled and installed using lifting equipment, significantly reducing the difficulty and problems associated with manual handling. The design of the lifting section 31 and lifting lugs 15 makes the handling and installation of the battery tray 100 more efficient, reducing required manpower and time, and improving overall work efficiency. By setting the lifting lugs 15 on the frame 10, corresponding to the lifting section 31 on the base plate 30, a uniform distribution of lifting force is ensured, reducing stress concentration on the tray structure and maintaining the integrity of the overall structure. The specially designed lifting section 31 and lifting lugs 15 reduce pressure and damage to other parts of the battery tray 100 during handling, extending the equipment's service life. The lifting design allows for flexible operation in different environments and conditions, suitable for various installation and maintenance scenarios, improving operational adaptability and efficiency.

[0115] The combination of the lifting hole 311 and the lifting lug hole 151 provides a stable lifting point, ensuring the balance and safety of the battery tray 100 during lifting and movement, reducing the risk of accidental drops or tilting. This design is easy to implement in the manufacturing process and does not require complex machining processes, thereby reducing manufacturing costs and complexity.

[0116] In one possible implementation, the lifting part 31 on the base plate 30 and the lifting lug 15 on the frame 10 are installed and fixed together with the whole vehicle.

[0117] In one possible implementation, four lifting parts 31 are provided on each side of the base plate 30. Four lifting lugs 15 are provided on each side frame 13 of the frame 10.

[0118] In one possible implementation, the lug 15 is provided with a metal insert.

[0119] Metal inserts provide additional strength and rigidity, enabling them to withstand greater loads and stresses, significantly improving the durability of the lifting lug 15 and facilitating the handling of larger forces during lifting operations. Metal materials typically possess high wear resistance, effectively reducing damage caused by friction and wear during lifting, thus extending the service life of the lifting lug 15. Metal inserts prevent plastic deformation of the lifting lug 15, maintaining its shape and functional stability. Metal inserts provide more reliable connection points, ensuring a secure connection between the lifting equipment and the lifting lug 15, reducing the possibility of accidental detachment. Because metal inserts can withstand higher loads and stresses, the risk of breakage or failure of the lifting lug 15 during lifting is reduced, thereby improving overall operational safety. Metal inserts typically have good corrosion resistance and weather resistance, maintaining stable performance under various environmental conditions, suitable for different indoor and outdoor applications. The high durability and reliability of metal inserts reduce the frequency of maintenance and replacement, thereby lowering maintenance costs and complexity.

[0120] In one possible implementation, the frame 10 is provided with a reinforcing part for connecting the connector 50, and the reinforcing part is provided with a metal insert. That is, at the bolt connection fixing points of the power distribution structure 40, the base plate 30 and the frame 10, the metal inserts can be pre-embedded in the injection molded parts to ensure the strength of the locking points.

[0121] In one possible implementation, the base plate 30 is connected to the frame 10 via a connector 50.

[0122] The connection via connector 50 simplifies the assembly process of the base plate 30 and frame 10, reducing manufacturing costs and time. Connector 50 provides additional support and fixation, making the connection between the base plate 30 and frame 10 more robust, contributing to improved structural strength and stability of the entire battery tray 100, especially under external loads and vibrations. Connector 50 facilitates the disassembly and replacement of either the base plate 30 or frame 10. This is particularly important for systems requiring regular maintenance or component replacement, reducing downtime and maintenance costs. Connector 50 allows for independent treatment and optimization of the base plate 30 and frame 10 during design and manufacturing, facilitating adaptation to different design requirements and application scenarios. Connector 50 helps distribute stress between the base plate 30 and frame 10, reducing potential damage or failure due to stress concentration. Some types of connector 50 have a degree of elasticity, absorbing and mitigating vibration and shock, protecting the battery cells and other components inside the battery tray 100. Connector 50 provides flexibility, allowing the base plate 30 and frame 10 to expand and contract freely with temperature changes, reducing the impact of thermal stress on the structure. By assembling using standardized connectors 50, the consistency and reliability of product quality can be improved, and quality problems caused by assembly errors can be reduced.

[0123] In one possible implementation, the connector 50 is a bolt, which securely connects the base plate 30 and the frame 10 through threads on the base plate 30 and the frame 10.

[0124] In one possible implementation, the base plate 30 is made of metal.

[0125] Metal materials typically possess excellent strength and durability, capable of withstanding significant loads and mechanical stresses. This allows the metal base plate 30 to provide robust support, protecting the battery cells and other components within the tray. Metal materials effectively resist external impacts and mechanical deformation, offering additional protection, especially during transportation and handling. Metal materials generally exhibit high fire resistance, preventing the spread of fire to some extent and enhancing the overall safety of the battery tray 100. Many metal materials, after appropriate surface treatments (such as galvanizing and coating), offer excellent corrosion resistance, making them suitable for use in various environmental conditions. Metal materials are easy to process and form, meeting complex design requirements and facilitating high-precision and consistent manufacturing. The metal base plate 30 provides good structural stability, reducing the impact of thermal expansion and contraction due to temperature changes on the tray structure.

[0126] In one possible implementation, the base plate 30 is a steel frame base plate.

[0127] In one possible implementation, the thermal conductivity of frame 10 is greater than or equal to 0.20 W / (m•K) and less than or equal to 0.30 W / (m•K).

[0128] The relatively low thermal conductivity means that frame 10 can act as a thermal insulator to some extent, reducing the impact of external ambient temperature on internal components. This helps maintain the thermal stability of the system. A thermal conductivity range of 0.20 W / (m•K)–0.30 W / (m•K) provides moderate thermal conductivity, enabling some control over heat transfer and helping to maintain a specific temperature range, preventing overheating or overcooling. By limiting rapid heat transfer, the glass frame 10 can protect battery cells and other sensitive components from extreme temperature changes, thereby extending their lifespan. Moderate thermal conductivity helps maintain optimal operating temperatures for batteries or electronic devices, improving their efficiency and performance. By controlling heat transfer, frame 10 can reduce the risk of thermal runaway, particularly in battery packs, thus improving overall safety. The thermal properties of frame 10 help maintain the physical stability of materials, reducing deformation or stress due to thermal expansion and contraction. This thermal conductivity range allows designers to find a balance between thermal management and structural strength, suitable for a variety of applications. Composite materials typically offer good cost-effectiveness, providing the necessary thermal performance while maintaining low material and manufacturing costs.

[0129] In one possible implementation, the side of the frame 10 facing away from the base plate 30 is connected to the cover plate.

[0130] Optionally, the frame 10 and the cover plate are connected by threaded holes and bolts.

[0131] In one possible implementation, the threaded hole connecting the frame 10 to the cover plate can be a self-tapping thread.

[0132] The battery tray 100 provided in this application embodiment includes a fiberglass component 20 and a frame 10. The frame 10 has a receiving cavity 11 for accommodating a battery. The fiberglass component 20 includes an inner cavity structure 21. The inner cavity structure 21 covers and is connected to the inner wall of the receiving cavity 11.

[0133] The inner cavity structure 21 of the fiberglass component 20 is made of fiberglass material, which has a low density and significantly reduces the overall weight compared to traditional rolled steel trays. This not only increases the energy density of the battery pack but also contributes to the lightweighting of electrical equipment, improving its range and energy efficiency. By using the fiberglass material in the fiberglass component 20 to form the inner cavity structure 21, the non-metallic fiberglass material provides excellent insulation. In the event of thermal runaway, the non-metallic contact surface of the battery tray 100 effectively prevents arcing and short circuits between the battery and the tray, thereby improving the thermal safety protection performance of the battery pack and the electrical equipment containing it. The use of composite materials reduces the need for additional anti-corrosion treatments and extends the service life of the tray. Due to the low thermal conductivity of fiberglass material, the battery tray 100 itself has good thermal insulation properties, reducing heat loss in low-temperature environments, lowering the energy consumption requirements of the battery pack, and improving the working efficiency of the battery pack.

[0134] Please also refer to Figure 5 This application embodiment also provides a battery pack 200, including a battery module 201 and the aforementioned battery tray 100, wherein the battery module 201 is disposed in the receiving cavity 11 of the battery tray 100.

[0135] Given that the battery pack 200 in this embodiment includes the battery tray 100 described in any of the above embodiments, the battery pack 200 includes the structure and beneficial effects of the battery tray 100, which will not be elaborated further in this embodiment.

[0136] In one possible implementation, the battery module 201 is fixed in the receiving cavity 11 by adhesive bonding.

[0137] In one possible implementation, the battery pack 200 further includes a cooling assembly 202. The cooling assembly 202 is located on the side of the battery module 201 opposite to the battery tray 100. The cooling assembly 202 is used to cool the battery module 201.

[0138] In one possible implementation, the cooling component 202 is a cold plate.

[0139] In one possible implementation, the battery pack 200 further includes a heating assembly 203. The heating assembly 203 is located on the side of the battery module 201 facing away from the battery tray 100, and on the side of the cooling assembly 202 facing the battery module 201. That is, the heating assembly 203 is located between the battery module 201 and the cooling assembly 202. The heating assembly 203 is used to heat the battery module 201.

[0140] In one possible implementation, the heating component 203 is attached directly above the battery module 201.

[0141] In one possible implementation, the battery pack 200 further includes thermally conductive adhesive 204. The thermally conductive adhesive 204 is disposed between the heating component 203 and the cooling component 202. The thermally conductive adhesive 204 bonds and fixes the heating component 203 and the cooling component 202, and serves to enhance heat exchange within the battery pack 200.

[0142] In one possible implementation, the battery pack 200 further includes a thermal insulation component 205. The thermal insulation component 205 is disposed on the side of the cooling assembly 202 facing away from the battery module 201. The thermal insulation component 205 is used to improve the thermal insulation performance of the battery pack 200 to prevent interference from the external environment.

[0143] In one possible implementation, the insulation component 205 is insulation cotton.

[0144] In one possible implementation, the battery pack 200 also includes a power distribution box assembly 206. The power distribution box assembly 206 is located in the battery tray 100 and connected to the power distribution structure 40 to facilitate future maintenance and replacement of parts.

[0145] In one possible implementation, the battery pack 200 further includes a high-voltage assembly 207. The high-voltage assembly 207 is disposed in the power distribution structure 40, with one end extending outwards from the battery pack 200. The high-voltage assembly 207 is used for the power output of the battery pack 200.

[0146] In one possible implementation, the battery pack 200 also includes a lifting member 208. The lifting member 208 has a lifting lug hole 151 and a lifting hole 311 through it, thereby securing the battery pack 200 to an electrical device, such as a car.

[0147] In one possible implementation, the lifting component 208 is a fastening bolt.

[0148] In one possible implementation, the battery pack 200 also includes an explosion-proof valve 209. The explosion-proof valve 209 is disposed in the explosion-proof valve mounting hole 14.

[0149] In addition, this application also provides an electrical device, including an electrical appliance and a battery pack as described in any of the above embodiments, the battery pack being used to provide electrical energy to the electrical appliance.

[0150] The specific structure, working principle and function of the battery pack have been described in detail in the foregoing embodiments, and will not be repeated here.

[0151] The electrical equipment in this application embodiment can be a vehicle, for example, a new energy vehicle, which can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle. Accordingly, the electrical device may include, but is not limited to, the vehicle's drive mechanism and the vehicle's control system.

[0152] In addition, electrical equipment can also refer to other devices, such as mobile phones, portable devices, laptops, electric toys, power tools, ships and spacecraft, among which spacecraft can include airplanes, rockets, space shuttles or spacecraft.

[0153] In one possible implementation, the lifting member 208 of the battery pack 200 passes through the lifting lug hole 151 and the lifting hole 311 of the battery tray 100 and is fixedly connected to the electrical equipment.

[0154] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0155] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0156] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0157] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0158] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery tray, characterized in that, include: A frame (10) having a receiving cavity (11) for accommodating a battery. A fiberglass component (20) includes an inner cavity structure (21) that covers and is connected to the inner wall of the receiving cavity (11).

2. The battery tray according to claim 1, characterized in that, The inner cavity structure (21) is molded from glass fiber, or the inner cavity structure (21) is molded from continuous glass fiber.

3. The battery tray according to claim 1, characterized in that, The frame (10) is connected to the inner cavity structure (21) by injection molding; and / or The frame (10) is injection molded from glass fiber and plastic materials; and / or The frame (10) is injection molded from chopped glass fiber and plastic material; and / or The frame (10) is a thermoplastic part; and / or The inner cavity structure (21) and the frame (10) are integrally injection molded.

4. The battery tray according to claim 1, characterized in that, The thermal conductivity of the frame (10) is greater than or equal to 0.20 W / (m·K) and less than or equal to 0.30 W / (m·K).

5. The battery tray according to any one of claims 1-4, characterized in that, The frame (10) includes a bottom frame (12) and a side frame (13), the bottom frame (12) connecting the side frame (13) to form the receiving cavity (11).

6. The battery tray according to claim 5, characterized in that, The bottom frame (12) has a honeycomb-shaped hollow structure; and / or The frame (10) also includes a partition (16) disposed in the receiving cavity (11) to divide the receiving cavity (11) into a plurality of sub-cavities (111).

7. The battery tray according to claim 6, characterized in that, The frame (13) is provided with an explosion-proof valve mounting hole (14) corresponding to the sub-cavity (111), and the explosion-proof valve mounting hole (14) is connected to the corresponding sub-cavity (111).

8. The battery tray according to any one of claims 1-7, characterized in that, The battery tray (100) further includes a base plate (30), which is disposed on the side of the frame (10) away from the inner cavity structure (21) and connected to the frame (10), and along the depth direction of the receiving cavity (11), the receiving cavity (11) is located within the range of the base plate (30) in the orthographic projection of the base plate (30); and / or The battery tray (100) also includes a power distribution structure (40) connected to the frame (10).

9. The battery tray according to claim 8, characterized in that, The power distribution structure (40) is connected to the frame (10) via a connector (50); and / or Along the depth direction of the receiving cavity (11), the orthographic projection of the power distribution structure (40) lies within the area of ​​the base plate (30); and / or The power distribution structure (40) on the side away from the inner cavity structure (21) is connected to the base plate (30) and the frame (10) via connectors (50); and / or The battery tray (100) further includes a buffer layer (60) disposed between the power distribution structure (40) and the base plate (30). The connector (50) passes through the base plate (30), the buffer layer (60), and the power distribution structure (40), and is fixedly connected to the frame (10) to connect the base plate (30), the buffer layer (60), the power distribution structure (40), and the frame (10); and / or The frame (10) is provided with a reinforcing part for connecting the connector (50), and the reinforcing part is provided with a metal insert.

10. The battery tray according to claim 8, characterized in that, The base plate (30) is provided with a lifting part (31), the lifting part (31) is provided with a lifting hole (311), the frame (10) is provided with a lifting lug (15), the lifting lug (15) corresponds to the lifting part (31), and the lifting lug (15) is provided with a lifting lug hole (151) that communicates with the lifting hole (311); and / or The lug (15) is provided with a metal insert; and / or The base plate (30) is connected to the frame (10) via a connector (50); and / or The base plate (30) is made of metal.

11. The battery tray according to any one of claims 8-10, characterized in that, The fiberglass component (20) further includes a covering layer disposed on at least one surface of the base plate (30).

12. A battery pack, characterized in that, It includes a battery module (201) and a battery tray (100) as claimed in any one of claims 1-11, wherein the battery module (201) is disposed in the receiving cavity (11) of the battery tray (100).

13. The battery pack according to claim 12, characterized in that, The battery pack (200) further includes a cooling assembly (202) disposed on the side of the battery module (201) opposite to the battery tray (100); and / or The battery pack (200) further includes a heating component (203) disposed between the battery module (201) and the cooling component (202); and / or The battery pack (200) further includes thermally conductive adhesive (204), which is disposed between the heating component (203) and the cooling component (202), and the thermally conductive adhesive (204) bonds and fixes the heating component (203) and the cooling component (202) together; and / or The battery pack (200) further includes a heat insulation component (205), which is disposed on the side of the cooling assembly (202) opposite to the battery module (201); and / or The battery pack (200) further includes a power distribution box assembly (206), which is disposed in the battery tray (100) and connected to the power distribution structure (40) of the battery tray (100); and / or The battery pack (200) further includes a high-voltage assembly (207), which is disposed in the power distribution structure (40) of the battery tray (100) and extends outward toward the outside of the battery pack (200); and / or The battery pack (200) also includes a lifting member (208) that passes through the lifting lug hole (151) and the lifting hole (311) of the battery tray (100); and / or The battery pack (200) also includes an explosion-proof valve (209), which is disposed in the explosion-proof valve mounting hole (14) of the battery tray (100).

14. An electrical appliance, characterized in that, Includes the battery pack (200) as described in any one of claims 12-13.

15. The electrical equipment according to claim 14, characterized in that, The lifting component (208) of the battery pack (200) passes through the lifting lug (151) and lifting hole (311) of the battery tray (100) and is fixedly connected to the electrical equipment.

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