Battery device and electric equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a battery device and electric equipment. The battery device comprises a box body, the box body comprises a first part and a second part, the first part is detachably connected with the second part, the second part forms an accommodating space with an opening, the first part is arranged corresponding to the opening, and the first part comprises a top cover; the damping layer is connected with the first part and arranged on the outer side surface of the top cover or arranged on the inner side surface and the outer side surface of the top cover at the same time. According to the battery device, the damping layer is arranged on the top cover of the box body, so that when the first part vibrates, the damping layer is used for buffering, and the noise generated by the first part during vibration can be reduced, so that the noise generated by the battery device is reduced, and the influence of the battery device on the environment is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and electrical equipment. Background Art

[0002] Electricity is a very environmentally friendly energy source, with applications in various fields, including energy storage, transportation, daily necessities, and scientific research. In particular, batteries are being widely used in the automotive industry with the rise of new energy vehicles. Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmental advantages, have become a vital component of the industry's sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] In the development of battery technology, in addition to improving the energy density of batteries, the impact of batteries on the environment is also an issue that cannot be ignored. Therefore, how to reduce the impact of batteries on the environment is a technical problem that needs to be solved in battery technology. Utility Model Content

[0004] In view of the above problems, the present application provides a battery device and an electrical device, in which a damping layer is provided on the housing to solve the technical problem that the battery device generates noise and affects the environment.

[0005] In order to solve the above technical problems, a technical solution adopted in this application is to provide a battery device, which includes: a box body, the box body includes a first part and a second part, the first part is connected to the second part, the second part forms a accommodating space with an opening, the first part is arranged corresponding to the opening, and the first part includes a top cover; a damping layer, connected to the first part, arranged on the outer surface of the top cover, or simultaneously arranged on the inner surface and outer surface of the top cover.

[0006] By providing a damping layer on the top cover of the box, the first part can be buffered by the damping layer when vibrating, which can reduce the noise generated by the first part during vibration, thereby reducing the noise generated by the battery device and reducing the impact of the battery device on the environment.

[0007] In a possible implementation, the damping layer is adhered to the top cover.

[0008] Connecting the damping layer to the first part by gluing can make the connection most convenient, speed up the production of the battery device, and simplify the operation.

[0009] In a possible implementation, the damping layer includes a rubber damping sheet, a resin damping sheet, or an asphalt damping sheet.

[0010] Rubber damping sheets, resin damping sheets or asphalt damping sheets are low in cost and have good noise reduction effects.

[0011] In a possible implementation manner, the damping layer is connected to the top cover by spraying.

[0012] The spraying method can make the connection between the damping layer and the first part tighter, and does not require other connecting parts for connection, so the structure is simpler.

[0013] In a possible implementation, the damping layer includes a water-based acrylic liquid damping layer, a water-based epoxy damping layer, a water-based polyurethane damping layer, a water-based chlorinated rubber damping layer, a water-based vinyl ester damping layer, or a water-based silicone damping layer.

[0014] A water-based acrylic liquid damping layer, a water-based epoxy damping layer, a water-based polyurethane damping layer, a water-based chlorinated rubber damping layer, a water-based vinyl ester damping layer or a water-based silicone damping layer has a good noise reduction effect and is suitable for spraying.

[0015] In a possible implementation, a plurality of damping layers are provided, and the damping layers are provided corresponding to a plurality of areas of the top cover where the vibration amplitude is the largest.

[0016] The setting of multiple damping layers can cover multiple high-noise areas and improve the noise reduction effect.

[0017] In a possible implementation manner, the thickness of the damping layer is 0.5-4 mm.

[0018] This thickness range can achieve the noise reduction effect without being too thick to affect the thickness of the first part.

[0019] In a possible implementation manner, the thickness of the damping layer is 1-2 mm.

[0020] This thickness range has a better noise reduction effect and does not affect the thickness of the first part.

[0021] In a possible implementation, the width dimension of the damping layer is 10-40 mm.

[0022] This size allows the width of the damping layer to be suitable for arrangement in a variety of boxes, saving space.

[0023] In a possible implementation manner, the width dimension of the damping layer is 20-30 mm.

[0024] This size is more suitable for arrangement on the first part of the box.

[0025] In a possible implementation manner, the length of the damping layer is 50-100 mm.

[0026] This size is more suitable for covering the high vibration area of ​​the first part.

[0027] In a possible implementation manner, the length dimension of the damping layer is 60-80 mm.

[0028] This size is more suitable for covering the high vibration area of ​​the first part and is more suitable for arrangement on the first part of the box.

[0029] In order to solve the above technical problems, another technical solution adopted in the present application is to provide an electrical device, which includes the above-mentioned battery device.

[0030] By providing a damping layer on the top cover of the box of the battery device of the electrical equipment, the first part can be buffered by the damping layer when it vibrates, which can reduce the noise generated by the first part when it vibrates, thereby reducing the noise generated by the battery device and reducing the impact of the battery device on the environment in which the electrical equipment is located.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above content and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 is a schematic structural diagram of a vehicle according to one or more embodiments of the present application;

[0034] Figure 2 is a schematic structural diagram of a battery device according to one or more embodiments of the present application;

[0035] Figure 3 is a schematic structural diagram of a battery cell according to one or more embodiments of the present application;

[0036] Figure 4 A schematic structural diagram of the first part according to one or more embodiments of the present application;

[0037] Figure 5 for Figure 4 Schematic diagram of the structure of the first part from above.

[0038] Among them, 1000-vehicle; 100-battery device; 200-controller; 300-motor; 10-housing; 11-first part; 12-second part; 20-battery cell; 21-shell; 22-connector; 23-electrode assembly; 23a-ear; 24-insulating member; 211-end cover assembly; 211a-electrode terminal; 212-shell; 111-top cover; 13-damping layer. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only used as examples and are not intended to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of this application, technical terms such as "first" and "second" are used solely to distinguish between different objects and should not be understood to indicate or imply relative importance, or to implicitly indicate the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of this application, unless otherwise expressly specified, the term "plurality" refers to more than two (including two). Similarly, "multiple groups" refers to more than two (including two), and "multiple sheets" refers to more than two (including two).

[0042] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or regional relationship, are based on the orientation or regional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0045] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0046] The battery cells disclosed in the embodiments of the present application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft. A power supply system comprising the battery cells and batteries disclosed in the present application can be used to form the electrical equipment.

[0047] The embodiments of the present application provide an electric device that uses a battery as a power source. The electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0048] The battery assembly includes a housing and battery cells. The housing comprises a first portion and a second portion, with the first portion comprising a top cover. The top cover of a battery assembly is typically a flat structure. In a battery assembly's operating environment, such as when the battery assembly is used in a vehicle, the vehicle's movement often causes the battery assembly to vibrate, causing the top cover to vibrate. When the top cover vibrates, areas with larger amplitudes can produce unusual sounds, generating noise that pollutes the environment and impacts the user experience.

[0049] Based on the above considerations, in order to solve the technical problem in the prior art that the top cover of the battery device is prone to generate noise when vibrating, the present application proposes a battery device and an electrical device. The battery device includes a case and a damping layer. The case includes a first part and a second part, and the first part is connected to the second part. The second part forms a accommodating space with an opening, and the first part is arranged corresponding to the opening. The first part includes a top cover. The damping layer is connected to the first part and is arranged on at least one side surface of the top cover. When the top cover vibrates, the damping layer will vibrate along with it, thereby preventing or reducing the noise generated by the top cover through the damping effect. Therefore, the top cover provided with a damping layer is less likely to generate noise, can reduce noise pollution caused to the environment, thereby protecting the environment and improving user experience.

[0050] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0051] Please refer to Figure 1 , Figure 1 Schematic diagram of the structure of a vehicle according to one or more embodiments of the present application.

[0052] The vehicle 1000 may be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000. The battery device 100 may be provided at the bottom, head, or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000. For example, the battery device 100 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to power the motor 300, for example, to meet the power requirements for starting, navigating, and driving the vehicle 1000.

[0053] In some embodiments of the present application, the battery device 100 can serve not only as an operating power source for the vehicle 1000 , but also as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .

[0054] Please refer to Figure 2 and Figure 3 , Figure 2Schematic diagram of a battery device according to one or more embodiments of the present application. Battery device 100 includes a housing 10 and a battery cell 20, with battery cell 20 housed within housing 10. Housing 10 is used to provide storage space for battery cell 20 and can have various structures. In some embodiments, housing 10 can include a first portion 11 and a second portion 12, which overlap each other and together define a storage space for battery cell 20. Second portion 12 can be a hollow structure with one end open. First portion 11 can be a plate-like structure, with first portion 11 overlapping the open side of second portion 12, so that first portion 11 and second portion 12 together define a storage space. Alternatively, first portion 11 and second portion 12 can each be a hollow structure with one end open, with the open side of first portion 11 overlapping the open side of second portion 12. Housing 10 formed by first portion 11 and second portion 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0055] In the battery device 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection means that the multiple battery cells 20 are connected both in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the whole formed by the multiple battery cells 20 is housed in the housing 10. Of course, the battery device 100 may also be a battery module formed by first connecting multiple battery cells 20 in series, in parallel, or in a hybrid connection, and then the multiple battery modules are further connected in series, in parallel, or in a hybrid connection to form a whole, and then housed in the housing 10. The battery device 100 may also include other structures. For example, the battery device 100 may also include a busbar component for achieving electrical connection between the multiple battery cells 20. Each battery cell 20 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto.

[0056] Please refer to Figure 3 , Figure 3 Schematic diagram of the structure of a battery cell according to one or more embodiments of the present application. The battery cell 20 refers to the smallest unit that constitutes the battery device 100. Figure 3As shown, the battery cell 20 includes a housing 21, an electrode assembly 23, and other functional components. The housing 21 includes an end cap assembly 211 and an outer shell 212. The outer shell 212 has an opening, and the end cap assembly 211 seals the opening. The end cap assembly 211 covers the opening of the outer shell 212 to isolate the internal environment of the battery cell 20 from the external environment. The shape of the end cap assembly 211 can be adapted to the shape of the outer shell 212 to fit the outer shell 212. Optionally, the end cap assembly 211 can be made of a material with a certain hardness and strength (such as aluminum alloy). This makes the end cap assembly 211 less susceptible to deformation during compression and collision, providing the battery cell 20 with greater structural strength and improved safety. Functional components such as electrode terminals 211a can be provided on the end cap assembly 211. The electrode terminals 211a can be used to electrically connect to the electrode assembly 23 to transmit or receive electrical energy from the battery cell 20. In some embodiments, the end cap assembly 211 may also be provided with a pressure relief mechanism for relieving internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The end cap assembly 211 may be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., but this is not particularly limited in the present embodiment. In some embodiments, an insulating member 24 may be provided inside the end cap assembly 211. This insulating member 24 may be used to isolate the electrical components within the housing 212 from the end cap assembly 211 to reduce the risk of short circuits. Exemplary insulating member 24 may be made of plastic, rubber, etc. The housing 212 is a component that cooperates with the end cap assembly 211 to form an internal environment for the battery cell 20. This internal environment can accommodate the electrode assembly 23, electrolyte, and other components. The housing 212 and end cap assembly 211 may be separate components. An opening may be provided in the housing 212, and the end cap assembly 211 may be placed over the opening to form the internal environment of the battery cell 20.

[0057] Without limitation, the end cap assembly 211 and the outer shell 212 may be integrated. Specifically, the end cap assembly 211 and the outer shell 212 may form a common connection surface before other components are inserted into the shell. When the interior of the outer shell 212 needs to be encapsulated, the end cap assembly 211 is then made to cover the outer shell 212. The outer shell 212 may be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the outer shell 212 may be determined according to the specific shape and size of the electrode assembly 23. The outer shell 212 may be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application do not impose any special restrictions on this. An electrode lead-out portion (not shown) may be provided on the outer shell 212, and the electrode lead-out portion is used to electrically connect to the tab 23a for outputting or inputting electrical energy of the battery cell 20.

[0058] The electrode assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more electrode assemblies 23 may be contained in the housing 212. The electrode assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body of the electrode assembly 23, and the parts of the positive and negative electrode sheets without active materials each constitute a tab 23a. The positive and negative electrode tabs may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery device 100, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tab 23a is connected to the electrode terminal 211a through the connector 22 to form a current loop.

[0059] In order to solve the problem that the top cover 111 of the box 10 of the battery device 100 generates noise and affects the environment, the present application provides a battery device 100 and an electrical device, please refer to Figure 4 and Figure 5 , Figure 4 A schematic structural diagram of the first part according to one or more embodiments of the present application; Figure 5 for Figure 4 Schematic diagram of the structure of the first portion in a bottom view. The battery device 100 includes a housing 10 and a damping layer 13. The housing 10 includes a first portion 11 and a second portion 12. The first portion 11 and the second portion 12 are connected, and the second portion 12 forms a receiving space with an opening. The first portion 11 is provided corresponding to the opening. The first portion 11 includes a top cover 111. The damping layer 13 is connected to the first portion 11 and is provided on at least one side surface of the top cover 111.

[0060] The first portion 11 of the housing 10 is primarily used to support the battery cells 20, while the second portion 12 is primarily used to cover the first portion 11, thereby encapsulating the battery cells 20 within the housing 10. The second portion 12 is also referred to as the cover. The top cover 111 is a key component of the second portion 12. Some second portions 12 may consist solely of the top cover 111, while others may include sidewalls in addition to the top cover 111. The top cover 111 is positioned relative to the battery cells 20 and is generally located at the top of the housing 10. In some vehicles, such as electric vehicles, the battery devices 100 used are relatively large, so the area of ​​the top cover 111 is also relatively large. Therefore, the top cover 111 is more prone to vibration, which in turn generates noise. The damping layer 13 is a component containing a damping factor material. The damping layer 13 can prevent or reduce the noise generated by the top cover 111 when it vibrates. The damping layer 13 can be disposed on the inner surface of the top cover 111, or on the outer surface of the top cover 111, or on both the inner and outer surfaces of the top cover 111. The inner surface of the top cover 111 is the surface of the top cover 111 facing the first portion 11, or the surface forming the interior space of the box body 10. The outer surface of the top cover 111 is the surface of the top cover 111 away from the first portion 11 and is part of the outer surface of the box body 10. The damping layer 13 can be a large sheet-like structure disposed on at least one side surface of the top cover 111.

[0061] By providing a damping layer 13 on the top cover 111 of the box body 10, the first part 11 can be buffered by the damping layer 13 when vibrating, thereby reducing the noise generated by the first part 11 when vibrating, thereby reducing the noise generated by the battery device 100 and reducing the impact of the battery device 100 on the environment.

[0062] In a possible implementation, the damping layer 13 is adhered to the top cover 111 .

[0063] The damping layer 13 can be adhered to the top cover 111 by using colloids such as double-sided adhesive, liquid adhesive, solid adhesive, etc., or a colloid can be provided on one side of the damping layer 13 so that it can be adhered to the top cover 111.

[0064] Connecting the damping layer 13 to the top cover 111 by gluing can make the connection most convenient, speed up the production of the battery device 100, and simplify the operation.

[0065] In a possible implementation, the damping layer 13 includes a rubber damping sheet, a resin damping sheet, or an asphalt damping sheet.

[0066] The damping layer 13 can be a damping sheet or a damping patch. The rubber damping sheet is a damping layer 13 made of rubber. The rubber damping sheet is, for example, a butyl rubber patch, which has a good damping effect and can be directly pasted, making it easy to use. The main component of the resin damping sheet is a polymer resin material. This type of material usually has stable physical and chemical properties, and can provide excellent vibration reduction and noise reduction effects, heat resistance, cold resistance, aging resistance and adhesion. They are non-irritating to the skin and have no corrosive effect on metals, plastics, rubber and other materials. Asphalt damping sheets are made of asphalt and also have good vibration reduction and noise reduction effects.

[0067] Rubber damping sheets, resin damping sheets or asphalt damping sheets are low in cost and have good noise reduction effects.

[0068] In a possible implementation, the damping layer 13 is connected to the top cover 111 by spraying.

[0069] The raw material of part of the damping layer 13 is liquid, which can be sprayed on the top cover 111 during the production process to form the damping layer 13.

[0070] The spraying method can make the connection between the damping layer 13 and the first part 11 tighter, and does not require other connecting parts for connection, so the structure is simpler.

[0071] In a possible implementation, the damping layer 13 includes a water-based acrylic liquid damping layer, a water-based epoxy damping layer, a water-based polyurethane damping layer, a water-based chlorinated rubber damping layer, a water-based vinyl ester damping layer, or a water-based silicone damping layer.

[0072] Water-based acrylic materials, water-based epoxy materials, water-based polyurethane materials, water-based chlorinated rubber materials, water-based vinyl ester materials or water-based silicone materials have strong adhesion capabilities, and after being coated on the top cover 111, they can be well adhered to the top cover 111. In addition, it has a good damping effect, strong corrosion resistance, waterproofness, etc., and is suitable for being arranged on the top cover 111 of the box body 10. Water-based acrylic damping paint: a paint prepared with water as a solvent or dispersion medium, acrylic esters as a resin matrix, and various additives, fillers and pigments. Water-based epoxy damping paint: a paint prepared with water as a solvent or dispersion medium, epoxy resin as a resin matrix, and various additives, fillers and pigments. Water-based polyurethane damping paint: a paint prepared with water as a solvent or dispersion medium, polyurethane resin as a resin matrix, and various additives, fillers and pigments. Water-based chlorinated rubber damping coating: A coating formulated using water as the solvent or dispersion medium, chlorinated rubber resin as the resin matrix, and various additives, fillers, and pigments. Water-based vinyl ester damping coating: A coating formulated using water as the solvent or dispersion medium, vinyl ester resin as the resin matrix, and various additives, fillers, and pigments. Water-based silicone damping coating: A coating formulated using water as the solvent or dispersion medium, silicone resin as the resin matrix, and various additives, fillers, and pigments.

[0073] A water-based acrylic liquid damping layer, a water-based epoxy damping layer, a water-based polyurethane damping layer, a water-based chlorinated rubber damping layer, a water-based vinyl ester damping layer or a water-based silicone damping layer has a good noise reduction effect and is suitable for spraying.

[0074] In a possible implementation, a plurality of damping layers 13 are provided, and the damping layers 13 are provided corresponding to a plurality of regions of the first portion 11 where the vibration amplitude is the largest.

[0075] The top cover 111 may have multiple areas with strong vibration amplitudes. Therefore, multiple damping layers 13 may be provided, with each damping layer 13 corresponding to one or more areas with large vibration amplitudes. For example, if there are ten vibration areas on the top cover 111, five of which have large vibration amplitudes and the other five have small vibration amplitudes, damping layers 13 may be provided in the five areas with large vibration amplitudes. Five damping layers 13 may be provided, each corresponding to a region with large vibration amplitudes. Alternatively, fewer than five damping layers 13 may be provided, with at least one damping layer 13 corresponding to two or more regions with large vibration amplitudes. Alternatively, more than five damping layers 13 may be provided, with multiple damping layers 13 provided in at least one region with large vibration amplitudes. The multiple areas with the largest vibration amplitudes are obtained by sorting the vibrating areas of the top cover 111 according to the magnitude of the vibration amplitudes, and then selecting multiple areas in descending order of vibration amplitude. The vibration amplitude of the top cover 111 can be determined by performing a vibration simulation test on the first portion 11.

[0076] The provision of multiple damping layers 13 can cover multiple high-noise areas and improve the noise reduction effect.

[0077] In a possible implementation manner, the thickness of the damping layer 13 is 0.5-4 mm.

[0078] The thickness of the damping layer 13 can be any one of 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1 mm, 1.25 mm, 1.5 mm, 1.75 mm, 2 mm, 2.5 mm, 3 mm, 3.25 mm, 3.5 mm, 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm, and 4 mm, or any value between any two of the above values. For example, the thickness of the damping layer 13 can be 1 mm to 3.5 mm.

[0079] This thickness range can achieve the noise reduction effect without being too thick to affect the thickness of the first portion 11 .

[0080] In a possible implementation manner, the thickness of the damping layer 13 is 1-2 mm.

[0081] The thickness of the damping layer 13 can be any one of 1 mm, 1.1 mm, 1.2 mm, 1.25 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.75 mm, 1.8 mm, 1.9 mm, and 2 mm, or any value between any two of the above values. For example, the thickness of the damping layer 13 can be 1.2 mm to 1.75 mm.

[0082] This thickness range has a better noise reduction effect and does not affect the thickness of the first portion 11 .

[0083] In a possible implementation manner, the width dimension of the damping layer 13 is 10-40 mm.

[0084] The shape of the damping layer 13 can be a quadrilateral, such as a rectangle, a parallelogram, a trapezoid, etc. The shape of the damping layer 13 can also be a polygon such as a triangle, a pentagon, or a hexagon. The shape of the damping layer 13 can also be a circular, elliptical, or other irregular shapes. When the shape of the damping layer 13 is a triangle or a quadrilateral, the width direction of the damping layer 13 is the direction of the shortest height of the shape, and the size of the damping layer 13 in the width direction is the size of the shortest height of the shape. The size of the damping layer 13 in the width direction can be any one of 10 mm, 11 mm, 12 mm, 15 mm, 17 mm, 19 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, 35 mm, or 40 mm, or can be any value between any two of the above values. For example, the size of the damping layer 13 in the width direction can be 12 mm to 28 mm.

[0085] This size allows the width of the damping layer 13 to be suitable for arrangement in various boxes 10 , thus saving space.

[0086] In a possible implementation manner, the width dimension of the damping layer 13 is 20-30 mm.

[0087] The width dimension of the damping layer 13 can be any one of 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, and 30 mm, or any value between any two of the above values. For example, the width dimension of the damping layer 13 can be 22 mm to 28 mm.

[0088] This size is more suitable for arrangement on the first portion 11 of the box 10 .

[0089] In a possible implementation, the length of the damping layer 13 is 50-100 mm.

[0090] The shape of the damping layer 13 can be rectangular. The length of the damping layer 13 can be any one of 50 mm, 52 mm, 55 mm, 58 mm, 60 mm, 70 mm, 80 mm, 82 mm, 85 mm, 88 mm, 90 mm, 93 mm, 95 mm, 97 mm, and 100 mm, or any value between any two of the above values. For example, the length of the damping layer 13 can be 58 mm to 93 mm. This length of the damping layer 13 is suitable for most of the battery device 100 housings 10 and can effectively cover the vibration area of ​​the top cover 111. The length of the damping layer 13 can be the length direction of the top cover 111, the width direction of the top cover 111, or the diagonal direction of the top cover 111. The arrangement of the damping layer 13 can be an array arrangement or a cross-shaped arrangement, and the design is specifically based on the high vibration area of ​​the top cover 111.

[0091] This size is more suitable for covering the high vibration area of ​​the first portion 11 .

[0092] In a possible implementation, the length of the damping layer 13 is 60-80 mm.

[0093] The length dimension of the damping layer 13 can be any one of 60 mm, 62 mm, 64 mm, 65 mm, 68 mm, 70 mm, 72 mm, 73 mm, 75 mm, 78 mm, and 80 mm, or any value between any two of the above values. For example, the length dimension of the damping layer 13 can be 68 mm to 73 mm.

[0094] This size is more suitable for covering the high vibration area of ​​the first portion 11 and is more suitable for arrangement on the first portion 11 of the box 10 .

[0095] In order to solve the above technical problems, another technical solution adopted in the present application is to provide an electrical device, which includes the above-mentioned battery device 100.

[0096] By providing a damping layer 13 on the top cover 111 of the box 10 of the battery device 100 of the electrical equipment, the first part 11 can be buffered by the damping layer 13 when vibrating, thereby reducing the noise generated by the first part 11 when vibrating, thereby reducing the noise generated by the battery device 100 and reducing the impact of the battery device 100 on the environment in which the electrical equipment is located.

[0097] Finally, in a specific application scenario, in response to the problem that the top cover 111 of the box body 10 of the existing battery device 100 generates noise due to vibration, the present application provides a battery device 100. The battery device 100 includes a box body 10 and a damping layer 13. The box body 10 includes a first part 11 and a second part 12, and the first part 11 and the second part are detachably connected. The second part 12 forms a accommodating space with an opening, and the first part 11 is arranged corresponding to the opening. The first part 11 includes a top cover 111. The damping layer 13 is connected to the first part 11 and is arranged on at least one side surface of the top cover 111. The damping layer 13 is adhered to the top cover 111, and the damping layer 13 includes a rubber damping sheet. Alternatively, the damping layer 13 is connected to the top cover 111 by spraying, and the damping layer 13 includes a water-based acrylic liquid damping layer 13.

[0098] The water-based acrylic liquid damping layer 13 has a good noise reduction effect and is suitable for spraying.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, characterized in that: The battery device comprises: A box body, the box body comprising a first portion and a second portion, the first portion being connected to the second portion, the second portion forming an accommodating space having an opening, the first portion being arranged corresponding to the opening, and the first portion comprising a top cover; The damping layer is connected to the first portion and is disposed on the outer surface of the top cover, or is disposed on both the inner surface and the outer surface of the top cover.

2. The battery device according to claim 1, wherein: The damping layer is adhered to the top cover.

3. The battery device according to claim 2, characterized in that The damping layer includes a rubber damping sheet, a resin damping sheet or an asphalt damping sheet.

4. The battery device according to claim 1, wherein: The damping layer is connected to the top cover by spraying.

5. The battery device according to claim 4, characterized in that The damping layer includes a water-based acrylic liquid damping layer, a water-based epoxy damping layer, a water-based polyurethane damping layer, a water-based chlorinated rubber damping layer, a water-based vinyl ester damping layer or a water-based organic silicon damping layer.

6. The battery device according to claim 1, wherein: There are multiple damping layers, and they are arranged corresponding to multiple areas of the top cover with the largest vibration amplitudes.

7. The battery device according to any one of claims 1 to 6, characterized in that: The thickness of the damping layer is 0.5-4 mm.

8. The battery device according to claim 7, characterized in that The thickness of the damping layer is 1-2 mm.

9. The battery device according to any one of claims 1 to 6, characterized in that: The width dimension of the damping layer is 10-40 mm.

10. The battery device according to claim 9, characterized in that The width dimension of the damping layer is 20-30 mm.

11. The battery device according to claim 9, characterized in that The length of the damping layer is 50-100 mm.

12. The battery device according to claim 11, wherein: The length of the damping layer is 60-80 mm.

13. An electrical device, characterized in that: The electrical equipment comprises the battery device according to any one of claims 1 to 12.

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