Battery device and electric device

Abstract

The utility model provides a battery device and a power utilization device, and the battery device comprises a box body which is provided with an accommodation space; the battery monomer group is arranged in the accommodating space, and the battery monomer group comprises a plurality of battery monomers; the protective plate is arranged at the bottom of the box body, the protective plate comprises a protective plate body and a plurality of flow guide parts, and the plurality of flow guide parts are arranged on the first surface of the protective plate body in an array manner and are arranged back to the single batteries; the flow guide part comprises a flow guide face, the flow guide face is arranged back on to the protection plate body, a first distance is formed between the flow guide face and the first surface in the first direction, the flow guide face is obliquely arranged in the second direction, and the first direction intersects with the second direction. In the first direction, a first included angle is formed between the flow guide face and the first surface, and the angle range of the first included angle is 5-45 degrees. The flow guide piece can effectively solve the problem that the weight of the guard plate is increased due to icing when the vehicle runs in winter, and the safety of the vehicle is improved.

Description

Technical Field

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

[0002] With the development of new energy technology, batteries are used more and more widely, such as in mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric airplanes and electric tools.

[0003] When batteries are used in vehicles, they are often installed at the bottom of the vehicle. The operating environment is relatively harsh, and protection needs to be provided for the batteries. Some protective plates of related technologies are difficult to meet the protection requirements. Utility Model Content

[0004] In view of the above problems, the present application provides a battery device and an electrical device, wherein the battery device is helpful to improve the safety of a vehicle.

[0005] In the first aspect, some embodiments of the present application provide a battery device, which includes a box body having a accommodating space; a battery cell group arranged in the accommodating space, the battery cell group including a plurality of battery cells; a guard plate arranged at the bottom of the box body, the guard plate including a guard plate body and a guide member, the plurality of guide members are arranged in an array on the first surface of the guard plate body and are arranged back to the battery cells; the guide member includes a guide surface, the guide surface is arranged back to the guard plate body, the guide surface has a first distance from the first surface along a first direction, the guide surface is inclined along a second direction, and the first direction intersects with the second direction; along the first direction, a first angle is provided between the guide surface and the first surface, and the angle range of the first angle is 5° to 45°.

[0006] In the technical scheme of the above embodiment, the battery device includes a box body, a battery cell group and a guard plate, the guard plate includes a guard plate body and a guide member, a plurality of guide members are arranged in an array on the first surface of the guard plate body and are arranged back to the battery, which can guide the flow of attachments on the guard plate, and the guide member includes a guide surface, which is inclined along the second direction, and can detach attachments on the first surface of the guard plate under the action of inertia and wind, thereby improving the cleanliness of the guard plate, effectively coping with the problem of ice and weight gain of the guard plate when the vehicle is driving in winter, and improving the safety of the vehicle. In addition, the angle range of the first angle is 5° to 45°, and the guide surface is relatively flat, which can reduce air resistance.

[0007] According to the battery device provided in some embodiments of the present application, along the second direction, the first distance gradually increases, and the increase amplitude remains the same. In this way, the lower surface of the guide member is a plane, which facilitates the rapid fall-off of the attached objects.

[0008] According to the battery device provided in some embodiments of the present application, along the second direction, the first distance gradually increases, and the increase amplitude gradually rises. In this way, the utilization of wind power can be improved, and the effect of separating attached objects can be improved.

[0009] According to the battery device provided in some embodiments of the present application, along the second direction, the first distance gradually increases, and the increase amplitude gradually decreases. In this way, the guide surface becomes more and more gentle, which can improve the air resistance.

[0010] According to the battery device provided in some embodiments of the present application, along the second direction, the first distance gradually increases, and the increase range first increases and then decreases. In this way, the tension of the attached objects on the guide surface can be reduced, making it easier for the attached objects to gather and fall off.

[0011] According to the battery device provided in some embodiments of the present application, along the second direction, the first distance gradually increases, and the increase range first decreases and then increases. In this way, the tension of the attached object on the guide surface can be reduced, and the attached object can be easily removed.

[0012] According to the battery device provided in some embodiments of the present application, along the second direction, the first distance ranges from 0 mm to 3 mm. In this way, the thickness of the guard plate in the first direction can be reduced, which facilitates the molding of the guard plate.

[0013] According to the battery device provided in some embodiments of the present application, along the second direction, the two ends of the flow guide have a second distance; along the third direction, the two sides of the flow guide have a third distance; the second distance is greater than the maximum value of the third distance, or the second distance is less than the maximum value of the third distance, or the second distance is equal to the maximum value of the third distance; the first direction, the second direction, and the third direction are perpendicular to each other. In this way, the design is more flexible.

[0014] According to the battery device provided in some embodiments of the present application, the third distance gradually decreases along the second direction, so that the attached objects can be easily collected and dropped off on the guide member.

[0015] According to the battery device provided in some embodiments of the present application, the amplitude of the third distance decreasing along the second direction remains the same, so that the structure is simple and the attachments can be easily collected and removed.

[0016] According to the battery device provided in some embodiments of the present application, along the third direction, a second angle is provided between the two side surfaces of the guide member, and the angle range of the second angle is 30° to 90°. In this way, the attached objects can easily fall off from the end of the guide surface along the second direction.

[0017] According to the battery device provided in some embodiments of the present application, along the second direction, the third distance decreases gradually, so that the use effect is more obvious when there is less liquid on the guard plate.

[0018] According to the battery device provided in some embodiments of the present application, the third distance decreases gradually along the second direction, so that the use effect is more obvious when there is more liquid on the guard plate.

[0019] According to the battery device provided by some embodiments of the present application, along the second direction, the amplitude of the third distance decreasing first increases and then decreases; or along the second direction, the amplitude of the third distance decreasing first decreases and then increases. In this way, the two ridges of the guide surface can have multiple guiding paths when guiding the collection of attached objects.

[0020] According to the battery device provided by some embodiments of the present application, along the second direction, the third distance first increases and then decreases. In this way, the flow guide will not hinder the flow of the attached matter on the first surface.

[0021] According to the battery device provided in some embodiments of the present application, the guide surface is in a water drop shape, and along the second direction, the amplitude of the third distance increasing gradually decreases; along the second direction, the amplitude of the third distance decreasing gradually increases first and then remains the same; or along the second direction, the amplitude of the third distance decreasing gradually increases first and then gradually decreases; or along the second direction, the amplitude of the third distance decreasing gradually increases first, then remains the same, and then gradually decreases. In this way, the guide member has a variety of design forms, which facilitates the arrangement of multiple guide members on the guard plate body.

[0022] According to the battery device provided by some embodiments of the present application, adjacent flow guides are arranged at intervals along the second direction and the third direction, so that the attached matter can flow and gather on the first surface and can be detached along the flow guide.

[0023] According to the battery device provided in some embodiments of the present application, adjacent flow guides are connected along the third direction, and adjacent flow guides are staggered along the second direction. In this way, the coverage area of ​​the flow guides on the guard plate body can be increased, and the attachments thrown off from the front row along the second direction will not adhere to the flow guides in the rear row.

[0024] According to the battery device provided in some embodiments of the present application, a hydrophobic layer is provided on the surface of the guard plate body and the guide member, so that the effect of separating the attached objects can be further improved.

[0025] According to the battery device provided in some embodiments of the present application, the guard plate body and the guide member are integrally formed; along the first direction, the average thickness of the guide member is equal to the average thickness of the guard plate body; or along the first direction, the average thickness of the guide member is greater than the average thickness of the guard plate body. In this way, the guard plate can be formed by stamping or casting, which is easy to process and manufacture.

[0026] According to the battery device provided in some embodiments of the present application, the flow guide is installed on the guard plate body; the guard plate body is made of metal material, and the flow guide is made of polymer material. In this way, the flow guide and the guard plate body can be formed separately, and the overall weight of the guard plate is reduced.

[0027] According to the battery device provided in some embodiments of the present application, the first surface is perpendicular to the first direction. Thus, the guiding effect of the guides at various locations on the first surface is more consistent, and the attachments detached from the front guide along the second direction will not adhere to the rear guide.

[0028] According to the battery device provided in some embodiments of the present application, along the second direction, the first surface is inclined toward the flow guide member; the inclination of the first surface remains unchanged, and a third angle is set between the first surface and the horizontal plane. In this way, the first surface can also play a role in guiding the flow, and the attached objects are more easily separated from the guard plate.

[0029] According to the battery device provided in some embodiments of the present application, along the second direction, the first surface is inclined toward the guide member; the inclination of the first surface gradually increases; or the inclination of the first surface gradually decreases. In this way, when removing the attached objects, it is possible to choose to use wind power or reduce wind resistance, which is more flexible.

[0030] According to the battery device provided in some embodiments of the present application, the box body includes a bottom wall, and the bottom wall includes a protective plate. In this way, the box body and the protective plate are formed as one component, which can simplify the structure of the battery device.

[0031] According to the battery device provided in some embodiments of the present application, the bottom wall further includes a support plate, and the support plate is located between the battery cell and the protective plate. In this way, the support plate and the protective plate below the battery cell form two layers of protection, which can improve the protection strength of the battery cell.

[0032] In a second aspect, some embodiments of the present application provide an electrical device, which includes a battery device provided by the above technical solution, and the battery device is used for supplying power.

[0033] The technical solution provided by the embodiments of the present disclosure brings at least the following beneficial effects:

[0034] Some embodiments of the present application provide a battery device and an electrical device, wherein the battery device includes a box, a battery cell group and a guard plate, wherein the guard plate includes a guard plate body and a guide member, wherein a plurality of guide members are arranged in an array on a first surface of the guard plate body and are disposed away from the battery, and can guide the flow of attachments on the guard plate, wherein the guide member includes a guide surface, wherein the guide surface is disposed away from the guard plate body and is inclined along a second direction, and attachments on the first surface of the guard plate can be detached under the action of inertia and wind force, thereby improving the cleanliness of the guard plate, and can effectively deal with the problem of ice and weight gain of the guard plate when the vehicle is driving in winter, thereby improving the safety of the vehicle.

[0035] 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 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

[0036] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limitations of the present application. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings.

[0037] Figure 1 A simplified schematic diagram of a vehicle provided in some embodiments of the present application;

[0038] Figure 2 A schematic diagram of disassembling a battery provided in some embodiments of the present application;

[0039] Figure 3 Schematic diagram of disassembly of batteries provided in other embodiments of the present application;

[0040] Figure 4 A schematic diagram of the structure of the guard plate provided in some embodiments of the present application;

[0041] Figure 5 A schematic diagram of the structure of the guard plate provided in other embodiments of the present application;

[0042] Figure 6 A schematic diagram of a flow guide member provided in some embodiments of the present application along a third direction;

[0043] Figure 7 Schematic diagram of the flow guide member provided in some other embodiments of the present application along the third direction;

[0044] Figure 8 A schematic diagram of a flow guide member provided in some other embodiments of the present application along a third direction;

[0045] Fig. 9 A schematic diagram of a flow guide member provided in some further embodiments of the present application along a third direction;

[0046] Fig.10 There are also schematic diagrams of flow guides provided in some embodiments of the present application along a third direction;

[0047] Fig.11 A schematic diagram of a flow guide member provided in some embodiments of the present application along a first direction;

[0048] Fig.12 Schematic diagram of a flow guide member provided in some other embodiments of the present application along a first direction;

[0049] Fig.13 A schematic diagram of a flow guide member provided in some other embodiments of the present application along a first direction;

[0050] Fig.14 A schematic diagram of a flow guide member provided in some further embodiments of the present application along a first direction;

[0051] Fig.15 There are also schematic diagrams of flow guides provided in some embodiments of the present application along a first direction;

[0052] Fig.16 A schematic diagram of a flow guide member provided in some more embodiments of the present application along a first direction;

[0053] Fig.17 A schematic diagram of a flow guide member provided in some other embodiments of the present application along a first direction;

[0054] Fig.18 A schematic diagram of the distribution of flow guides provided in some embodiments of the present application;

[0055] Fig.19 A schematic diagram of the distribution of flow guides provided in other embodiments of the present application;

[0056] Fig. 20 A schematic diagram of a guard plate provided in some embodiments of the present application along a third direction.

[0057] In the attached picture:

[0058] 1000-Vehicle; 100-Battery; 200-Controller; 300-Motor;

[0059] 10-guard plate; 20-box; 21-first box; 22-second box; 30-battery module; 31-battery monomer;

[0060] 1-guard body; 2-flow guide;

[0061] X-third direction; Y-second direction; Z-first direction;

[0062] L1-first distance; L2-second distance; L3-third distance;

[0063] R1-first angle; R2-second angle; R3-third angle. DETAILED DESCRIPTION

[0064] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. 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 cannot be used to limit the scope of protection of the present application.

[0065] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0066] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0067] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0068] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0069] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0070] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields.

[0071] The battery cells mentioned in the embodiments of the present application may be secondary battery cells. A secondary battery cell refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0072] The battery cells may be ion battery cells, including but not limited to lithium ion battery cells, sodium ion battery cells, sodium lithium ion battery cells, magnesium ion battery cells, and calcium ion battery cells.

[0073] A battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of the battery cell, active ions (such as lithium ions) are embedded and released back and forth between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode to prevent the positive and negative electrodes from short-circuiting, and the ion channel arranged on it allows the active ions to pass through.

[0074] In some embodiments, the battery cell further includes an electrolyte, which plays a role in conducting ions between the positive and negative electrodes. The electrolyte may be in a liquid, gel or solid state.

[0075] In some embodiments, the electrode assembly is provided with tabs, which can lead current out of the electrode assembly. The tabs include a positive tab and a negative tab.

[0076] In some embodiments, the battery cell may include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing may be a steel housing, an aluminum housing, a plastic housing (such as polypropylene), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film.

[0077] As an example, the battery cell may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell or a battery cell of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery.

[0078] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0079] With the development of new energy technologies, electric vehicles are becoming increasingly popular. In electric vehicles, batteries are used as energy sources, and batteries are usually installed at the bottom of electric vehicles (such as electric cars, electric tricycles, and electric bicycles). The bottom of the battery faces the ground, and the working environment is relatively harsh, so a protective bottom plate is often provided. In rainy and snowy weather, the protective bottom plate is easily soaked with water, and especially in cold winter, the wet protective bottom plate is prone to ice formation, which will not only increase the load of the electric vehicle, but also reduce the chassis of the electric vehicle, posing a safety hazard. How to improve the safety of electric vehicles has become an urgent problem to be solved.

[0080] In view of this, the embodiment of the present application provides a technical solution, wherein the battery device includes a box 20, a battery cell group and a guard plate 10, the battery cell group is arranged in the accommodating space of the box 20, and includes a plurality of battery cells 31, the guard plate 10 is arranged at the bottom of the box 20, the guard plate 10 includes a guard plate body 1 and a guide 2, a plurality of guides 2 are arranged in an array on the first surface of the guard plate body 1, and are arranged back to the battery cells 31; the guide 2 includes a guide surface, the guide surface is arranged back to the guard plate body 1, the guide surface has a first distance L1 with the first surface along the first direction Z, the guide surface is inclined along the second direction Y, and the first direction Z intersects with the second direction Y. When the battery device is installed on a vehicle, the first direction Z is vertically downward, and the second direction Y is the direction from the front end to the rear end of the vehicle. When the vehicle is driving, the guide 2 can use the inertia and wind force to separate the attachments on the guard plate from the guard plate, effectively dealing with the problem of ice and weight increase of the guard plate when the vehicle is driving in winter, and improving the safety of the vehicle.

[0081] The battery described in the embodiments of the present application is applicable to an electric vehicle, which may be a vehicle (such as an electric car, an electric SUV, an electric MPV, an electric bus), or an electric tricycle or an electric bicycle.

[0082] For the convenience of description, the following embodiments are described by taking the electric device of one embodiment of the present application as a vehicle 1000 as an example.

[0083] Please refer to Figure 1 , Figure 1 A simplified schematic diagram of a vehicle provided in accordance with some embodiments of the present application.

[0084] The vehicle 1000 may be an electric car, an electric SUV, an electric MPV, an electric bus, etc. Among them, the electric car, electric SUV, electric MPV, electric bus, etc. may be pure electric, hybrid or range-extended. The vehicle 1000 is provided with a battery 100 inside. The battery 100 may be provided at the bottom of the vehicle 1000 for powering the vehicle 1000. For example, the vehicle 1000 may include a battery 100, a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300 for starting, navigating and driving the vehicle 1000.

[0085] Please refer to Figure 2 and Figure 3 , Figure 2 A schematic diagram of disassembling a battery provided in some embodiments of the present application; Figure 3 Schematic diagram of disassembly of batteries provided in other embodiments of the present application.

[0086] The battery 100 includes a housing 20 and a battery cell group. The battery cell group includes a plurality of battery cells 31. The battery cells 31 are accommodated in the housing 20. The housing 20 is used to provide a placement position for the battery cells 31. There may be multiple battery cells 31 in the battery 100. The multiple battery cells 31 may be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 31 are both connected in series and in parallel. The multiple battery cells 31 may be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 31 is accommodated in the housing 20; of course, the battery 100 may also be a battery module 30 in the form of multiple battery cells 31 first connected in series, in parallel, or in mixed connection, and the multiple battery modules 30 are then connected in series, in parallel, or in mixed connection to form a whole and accommodated in the housing 20.

[0087] The box 20 may include a first box 21 and a second box 22, and the first box 21 and the second box 22 may cover each other to define a placement position for accommodating the battery cells 31. The first box 21 and the second box 22 may be in various shapes, such as a cuboid, a cylinder, etc. The first box 21 may be a hollow structure with one side open, and the second box 22 may also be a hollow structure with one side open, and the open side of the second box 22 covers the open side of the first box 21, thereby forming a box 20 with a placement space.

[0088] Please refer to Figure 4 and Figure 5 , Figure 4 A schematic diagram of the structure of the guard plate provided in some embodiments of the present application; Figure 5A schematic diagram of the structure of the guard plate provided in other embodiments of the present application.

[0089] In the first aspect, some embodiments of the present application provide a battery device, which includes a box body 20, a battery cell group and a protective plate 10, the box body 20 has a accommodating space, the battery cell group is arranged in the accommodating space, the battery cell group includes a plurality of battery cells 31, the protective plate 10 is arranged at the bottom of the box body 20, the protective plate includes a protective plate body 1 and a guide member 2, the plurality of guide members 2 are arranged in an array on the first surface of the protective plate body 1 and are arranged back to the battery cells 31; the guide member 2 includes a guide surface, the guide surface is arranged back to the protective plate body 1, the guide surface has a first distance L1 with the first surface along the first direction Z, the guide surface is inclined along the second direction Y, and the first direction Z intersects with the second direction Y; along the first direction Z, a first angle R1 is provided between the guide surface and the first surface, and the angle range of the first angle R1 is 5° to 45°.

[0090] The battery device can be installed on a vehicle when in use, the first direction Z is a vertical downward direction, and the second direction Y is a direction from the front end to the rear end of the vehicle (for example, from the front end to the rear end of the vehicle). The battery device can be located at the chassis of the vehicle, along the first direction Z (i.e., the vertical direction), the guard body 1 is located below the battery, and the guide member 2 is located below the guard body 1.

[0091] Along the first direction Z, the guide member 2 protrudes from the first surface of the guard plate body 1, and the height difference between the guide surface and the first surface is the first distance L1. The guide surface is not parallel to the first surface, so the value of the first distance L1 changes with the guide surface. The guide surface is inclined along the second direction Y, and the first distance L1 gradually increases along the second direction Y, or the first distance L1 first increases and then decreases along the second direction Y. The first distance L1 gradually increases along the second direction Y, which is suitable for manned vehicles, and the direction of travel of the vehicle is opposite to the second direction Y; the first distance L1 first increases and then decreases along the second direction Y, which is suitable for manned and unmanned vehicles. If it is an unmanned vehicle, the direction of travel of the vehicle can be along the second direction Y or opposite to the second direction Y.

[0092] The guide surface is inclined along the second direction Y. When the vehicle is running, the airflow rubs against the guide surface, and the attached objects (such as water, mud, and ice particles) on the guide surface can be separated from the guard plate along the inclined direction of the guide surface; when the vehicle is stationary, the flowable attached objects on the guard plate can also flow from the guard plate body 1 to the guide member 2 under the action of gravity and slide down along the guide surface.

[0093] The first angle R1 between the guide surface and the first surface at each location may be continuously changed or may be a fixed value. The angle of the first angle R1 may be 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, or any intermediate value between any two adjacent values, for example, 6°, 7°, 8°, 9°, 11°, 12°, 13°, 14°, 16°, 17°, 18°, 19°, 31°, 32°, 33°, 34°, 36°, 37°, 38°, 39°, 41°, 42°, 43°, 44°.

[0094] In the technical solution of the above embodiment, the battery device includes a box body 20, a battery cell group and a guard plate 10. The guard plate 10 provides protection for the battery cell 31 at the bottom of the box body 20, which can reduce the contamination of the battery cell 31 by stones, muddy water, etc. during the driving of the vehicle. The guard plate 10 includes a guard plate body 1 and a guide 2. A plurality of guides 2 are arranged in an array on the first surface of the guard plate body 1 and are arranged back to the battery cell 31, which can guide the flow of the attached objects on the guard plate 10. The guide 2 includes a guide surface, which is arranged away from the guard plate body 1, and the guide surface is inclined along the second direction Y, which can separate the attached objects on the lower surface of the guard plate 10 under the action of inertia and wind force, improve the cleanliness of the guard plate 10, and can effectively deal with the problem of ice and weight increase of the guard plate 10 when the vehicle is driving in winter, thereby improving the safety of the vehicle. In addition, the first angle R1 has an angle range of 5° to 45°, and the maximum value of the first angle R1 does not exceed 45°. The guide surface is inclined more gently along the second direction Y, which can reduce air resistance.

[0095] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the guide member 2 provided in some embodiments of the present application along the third direction X, that is, a side schematic diagram of the guide member 2.

[0096] In some embodiments of the present application, along the second direction Y, the first distance L1 gradually increases, and the magnitude of the increase remains consistent.

[0097] The first distance L1 increases linearly along the second direction Y. The flow-guiding surface is a plane, and along the second direction Y, the flow-guiding surface gradually moves away from the guard plate body 1 .

[0098] In the technical solution of the above embodiment, the first distance L1 increases in a consistent manner along the second direction Y, and the guide surface is a plane. When the attached object moves along the second direction Y on the guide surface, the travel is short, which facilitates rapid shedding.

[0099] Please refer to Figure 8 , Figure 8This is a schematic diagram of the guide member 2 provided in some other embodiments of the present application along the third direction X, that is, a side schematic diagram of the guide member 2.

[0100] In some embodiments of the present application, along the second direction Y, the first distance L1 gradually increases, and the magnitude of the increase gradually rises.

[0101] The first distance L1 increases nonlinearly along the second direction Y, and the inclination angle of the guide surface gradually increases along the second direction Y. The guide surface is an arc surface, and along the second direction Y, the guide surface is increasingly away from the first surface.

[0102] In the technical solution of the above embodiment, the first distance L1 increases gradually along the second direction Y, and the guide surface is a curved surface, which can reduce the tension of the attached objects (especially liquid) on the guide surface. In addition, along the second direction Y, the guide surface becomes steeper and steeper, which can improve the utilization of wind power and further improve the effect of shedding the attached objects.

[0103] Please refer to Figure 7 , Figure 7 This is a schematic diagram of the guide member 2 provided in some other embodiments of the present application along the third direction X, that is, a side schematic diagram of the guide member 2.

[0104] In some embodiments of the present application, along the second direction Y, the first distance L1 gradually increases, and the magnitude of the increase gradually decreases.

[0105] The first distance L1 increases nonlinearly along the second direction Y, and the inclination angle of the guide surface gradually decreases along the second direction Y. The guide surface is an arc surface, and along the second direction Y, the guide surface is less and less away from the first surface.

[0106] In the technical solution of the above embodiment, the first distance L1 gradually decreases along the second direction Y, and the guide surface is a curved surface, which can reduce the tension of the attached objects on the guide surface. In addition, along the second direction Y, the guide surface becomes more and more gentle, which can improve air resistance.

[0107] Please refer to Fig.10 , Fig.10 Some embodiments of the present application also provide schematic diagrams of the guide member 2 along the third direction X, that is, a side schematic diagram of the guide member 2.

[0108] In some embodiments of the present application, along the second direction Y, the first distance L1 gradually increases, and the magnitude of the increase first increases and then decreases.

[0109] The first distance L1 increases nonlinearly along the second direction Y, and the inclination angle of the guide surface increases gradually first and then decreases gradually along the second direction Y. The guide surface is an arc surface, and along the second direction Y, the guide surface tends to be steep first and then flat.

[0110] In the technical solution of the above embodiment, the enlargement amplitude of the guide surface has two forms, which can further reduce the tension of the attached objects on the guide surface and facilitate the attachment to fall off. The amplitude of the first distance L1 along the second direction Y increases first and then decreases, which facilitates the attachment to gather and fall off.

[0111] Please refer to Fig. 9 , Fig. 9 This is a schematic diagram of the guide member 2 provided in some other embodiments of the present application along the third direction X, that is, a side schematic diagram of the guide member 2.

[0112] In some embodiments of the present application, along the second direction Y, the first distance L1 gradually increases, and the magnitude of the increase first decreases and then increases.

[0113] The first distance L1 increases nonlinearly along the second direction Y, and the inclination angle of the guide surface first decreases gradually and then increases gradually along the second direction Y. The guide surface is an arc surface, and along the second direction Y, the guide surface first tends to be gentle and then tends to be steep.

[0114] In the technical solution of the above embodiment, the enlargement amplitude of the guide surface has two forms, which can further reduce the tension of the attached objects on the guide surface and facilitate the attachment to fall off. The amplitude of the first distance L1 along the second direction Y first decreases and then increases, making it easier for the attached objects to fall off.

[0115] In some embodiments of the present application, along the second direction Y, the first distance L1 ranges from 0 mm to 3 mm.

[0116] Along the first direction Z, the height of the outward protrusion of the guide surface on the first surface is not greater than 3 mm, for example, it can be 0 mm, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, or any intermediate value between any two adjacent values ​​mentioned above.

[0117] In the technical solution of the above embodiment, the range of the first distance L1 is 0 mm to 3 mm, not more than 3 mm, which can reduce the thickness of the guard plate in the first direction. Regardless of whether the guard plate is stamped or thermoplastic formed (for example, when the guard plate 10 is a metal part, it can be cast, and when the guard plate 10 is a non-metallic part, it can be injection molded), the molding difficulty of the guard plate 10 can be reduced, and the processing and manufacturing of the guard plate 10 is facilitated.

[0118] Please refer to Fig.11 , Fig.11 This is a schematic diagram of the guide member 2 provided in some embodiments of the present application along the first direction Z.

[0119] In some embodiments of the present application, along the second direction Y, the two ends of the guide member 2 have a second distance L2; along the third direction X, the two side surfaces of the guide member 2 have a third distance L3; the second distance L2 is greater than the maximum value of the third distance L3, or the second distance L2 is less than the maximum value of the third distance L3, or the second distance L2 is equal to the maximum value of the third distance L3; the first direction Z, the second direction Y, and the third direction X are perpendicular to each other.

[0120] The relationship between the maximum values ​​of the second distance L2 and the third distance L3 may be greater than, less than, or equal to each other. The first direction Z may be vertically downward, the second direction Y may be horizontally arranged and may be the opposite direction of the vehicle's travel direction, and the third direction X may be a direction perpendicular to the plane established by the first direction Z and the second direction Y.

[0121] In the technical solution of the above embodiment, along the second direction Y, the third interval can be constantly changed or can remain unchanged, and there are multiple solutions to choose from.

[0122] Please refer to Fig.11 , Fig.11 This is a schematic diagram of the guide member 2 provided in some embodiments of the present application along the first direction Z.

[0123] In some embodiments of the present application, along the second direction Y, the third distance L3 gradually decreases.

[0124] Along the second direction Y, the flow guide member 2 is arranged to be contracted, and the two side surfaces along the third direction X gradually approach and converge together. Along the second direction Y, the flow guide surface becomes narrower and narrower.

[0125] In the technical solution of the above embodiment, the third distance L3 gradually decreases along the second direction Y, the part of the guide surface close to the first surface is wide, which is convenient for the attachments on the first surface to be gathered to the guide member 2, and the part of the guide surface away from the first surface is narrow, which is convenient for the attachments to fall off the guide surface.

[0126] In some embodiments of the present application, Fig.11 As shown, along the second direction Y, the magnitude of the third distance L3 becoming smaller remains the same.

[0127] Along the first direction Z, the guide surface is a triangle. Along the third direction X, the two side surfaces corresponding to the third distance L3 are both planes; along the second direction Y, the two planes are close to each other and converge into a straight line, which is parallel to the first direction Z.

[0128] In the technical solution of the above embodiment, the guide member 2 has a simple structure, is easy to process and manufacture, and is convenient for attachments to be collected and removed during use.

[0129] In some embodiments of the present application, Fig.11As shown, along the third direction X, a second angle R2 is provided between the two side surfaces of the guide member 2 , and the angle range of the second angle R2 is 30° to 90°.

[0130] Exemplarily, the second angle R2 can be 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, or 90°, or any intermediate value between any two adjacent values ​​mentioned above.

[0131] In the technical solution of the above embodiment, the maximum value of the second angle R2 does not exceed 90°, that is, the second angle R2 is a right angle or an acute angle, and the attached objects can fall off from the end of the guide surface in the second direction Y (the intersection of the two edges corresponding to the second angle R2).

[0132] Please refer to Fig.13 , Fig.13 Schematic diagram of the guide member 2 along the first direction Z provided in some other embodiments of the present application.

[0133] In some embodiments of the present application, along the second direction Y, the third distance L3 decreases gradually.

[0134] Along the second direction Y, two ridges corresponding to the third distance L3 are close to each other, the ridges are arc-shaped lines, and the inclination angle gradually increases when they are close to each other.

[0135] In the technical solution of the above embodiment, the amplitude of the third distance L3 gradually increases along the second direction Y. When the attached matter is liquid, the convergence effect on the guide surface is better. The attached matter can converge at the intersection along the two edges of the guide surface and fall off. The effect is more obvious when there is less liquid on the guard plate.

[0136] Please refer to Fig.12 , Fig.12 Schematic diagram of the guide member 2 along the first direction Z provided in some other embodiments of the present application.

[0137] In some embodiments of the present application, along the second direction Y, the third distance L3 decreases gradually.

[0138] Along the second direction Y, the two ridges corresponding to the third distance L3 are close to each other, the ridges are arc-shaped lines, and the inclination angles gradually decrease when they are close to each other.

[0139] In the technical solution of the above embodiment, the amplitude of the third distance L3 decreasing along the second direction Y gradually decreases, and the angle between the two ridges of the guide surface along the second direction Y becomes smaller and smaller. When the attached matter is liquid, it is easier to fall off, and the effect is more obvious when there is more liquid on the guard plate.

[0140] Please refer to Fig.14 and Fig.15 , Fig.14 A schematic diagram of a flow guide member 2 provided in some further embodiments of the present application along a first direction Z; Fig.15 Some other embodiments of the present application provide schematic diagrams of the guide member 2 along the first direction Z.

[0141] In some embodiments of the present application, Fig.15 As shown, along the second direction Y, the third distance L3 decreases firstly and then decreases. Fig.14 As shown, along the second direction Y, the third distance L3 decreases first and then increases.

[0142] Along the second direction Y, the two ridges corresponding to the third distance L3 approach each other until they intersect at one point. Along the second direction Y, the two ridges are arranged in a curved manner, and the inclination angles change in different trends when approaching each other.

[0143] In the technical solution of the above embodiment, the amplitude of the third distance L3 decreasing along the second direction Y first increases and then decreases, or first decreases and then increases. The two ridges of the guide surface can have multiple guiding paths when guiding the collection of attachments.

[0144] Please refer to Fig.16 and Fig.17 , Fig.16 A schematic diagram of the flow guide member 2 provided in some more embodiments of the present application along the first direction Z; Fig.17 This is a schematic diagram of the guide member 2 along the first direction Z provided in some other embodiments of the present application.

[0145] In some embodiments of the present application, along the second direction Y, the third distance L3 first increases and then decreases.

[0146] Exemplarily, the guide surface may be in a shuttle shape, a diamond shape, or a teardrop shape.

[0147] In the technical solution of the above embodiment, the third distance L3 first increases and then decreases along the second direction Y. On the basis of facilitating flow guidance, the flow guide member 2 also facilitates the gathering of attached objects on the first surface (for example, it facilitates the flow of liquid on the first surface along the second direction Y). The flow guide member 2 will not hinder the flow of attached objects on the first surface.

[0148] In some embodiments of the present application, the guide surface is in a teardrop shape, and along the second direction Y, the third distance L3 gradually decreases in magnitude; Fig.16 As shown, along the second direction Y, the amplitude of the third distance L3 gradually increases first and then remains constant; or along the second direction Y, the amplitude of the third distance L3 gradually increases first and then gradually decreases; or Fig.17 As shown, along the second direction Y, the amplitude of the third distance L3 gradually increases, then remains consistent, and finally gradually decreases.

[0149] The guide surface is in the shape of a water drop; the contraction portion of the water drop along the second direction Y can have a variety of design forms.

[0150] In the technical solution of the above embodiment, the guide surface is in a teardrop shape, which is convenient for arrangement on the guard plate body 1, and a plurality of guide members 2 can be densely distributed on the guard plate body 1 to form a dragon scale shape (fish scale shape).

[0151] Please refer to Fig.18 and Fig.19 , Fig.18 A schematic diagram of the distribution of the flow guide members 2 provided in some embodiments of the present application; Fig.19 Schematic diagram of the distribution of the guide members 2 provided in other embodiments of the present application.

[0152] In some embodiments of the present application, Figure 4 As shown, along the second direction Y and the third direction X, adjacent flow guide members 2 are arranged at intervals.

[0153] The intervals between adjacent flow guide members 2 in the second direction Y and the intervals between adjacent flow guide members 2 in the third direction X may be equal or unequal.

[0154] In the technical solution of the above embodiment, there is a gap between adjacent guide members 2 , and the coverage area of ​​the guide members 2 on the first surface is small, so that attached objects can flow and gather on the first surface and can be detached along the guide members 2 .

[0155] In some embodiments of the present application, Fig.18 and Fig.19 As shown, along the third direction X, adjacent flow guide members 2 are connected; along the second direction Y, adjacent flow guide members 2 are staggered.

[0156] On the guard plate body 1 , adjacent flow guides 2 are connected and staggered along the second direction Y. The flow guides 2 can cover at least more than half of the surface of the guard plate body 1 .

[0157] In the technical solution of the above embodiment, the adjacent guide members 2 are connected along the third direction X, and the adjacent guide members 2 are staggered along the second direction Y, which can increase the coverage area of ​​the guide members 2 on the first surface. In addition, along the second direction Y, the attachments thrown off in the front will not adhere to the rear guide member 2.

[0158] In some embodiments of the present application, a hydrophobic layer is provided on the surface of the guard plate body 1 and the guide member 2 .

[0159] The hydrophobic layer can be coated on the lower surface of the guard plate with a hydrophobic material, and the guard plate can also be made of a hydrophobic material.

[0160] In the technical solution of the above embodiment, the guard plate is separated from the attached objects by combining the hydrophobic layer with the guide member 2, which can further improve the effect of separating the attached objects.

[0161] In some embodiments of the present application, the guard plate body 1 and the guide member 2 are integrally formed; along the first direction Z, the average thickness of the guide member 2 is equal to the average thickness of the guard plate body 1.

[0162] The entire guard plate can be formed by stamping, and the guide member 2 is a protrusion formed along the first direction Z on the guard plate body 1.

[0163] In the technical solution of the above embodiment, the guard plate body 1 can be made of steel plate through stamping, which has strong integrity and is easy to process and manufacture.

[0164] In some embodiments of the present application, the guard plate body 1 and the guide member 2 are integrally formed; along the first direction Z, the average thickness of the guide member 2 is greater than the average thickness of the guard plate body 1.

[0165] The entire guard plate can be made by casting. For example, the entire guard plate can be a cast iron guard plate.

[0166] In the technical solution of the above embodiment, the average thickness of the guide member 2 is greater than the average thickness of the guard plate body 1, which can improve the protection strength.

[0167] In some embodiments of the present application, the guide member 2 is installed on the guard plate body 1; the guard plate body 1 is made of metal material, and the guide member 2 is made of polymer material.

[0168] The guide member 2 and the guard plate body 1 may be a split structure, and each is independent during molding, for example, the guide member 2 is bonded to the guard plate body 1, clamped to the guard plate body 1, or riveted to the guard plate body 1. The guide member 2 may also be a protrusion formed by a polymer material coated on the guard plate body 1 (that is, the guide member 2 may be formed by a polymer material coating of the guard plate body 1). When the guide member 2 is a polymer material, the material of the guide member 2 may be a hydrophobic polymer material such as polytetrafluoroethylene, polyethylene, polyamide, and polypropylene.

[0169] In the technical solution of the above embodiment, the guide 2 and the guard plate body 1 are independent of each other, and the guide 2 can be installed on the guard plate body 1 after molding, which is convenient for the modification of conventional guard plates. The guide 2 is made of polymer material, which not only facilitates the combination of the guide 2 and the guard plate body 1, but also reduces the overall weight of the guard plate 10, saving manufacturing costs.

[0170] In some embodiments of the present application, the first surface is perpendicular to the first direction Z.

[0171] The guard plate body 1 is installed below the battery, and the first surface is arranged horizontally.

[0172] In the technical solution of the above embodiment, the first surface is perpendicular to the first direction Z, and the guiding effect of the guide members 2 at various locations on the first surface is consistent. In addition, along the second direction Y, the attachments dropped by the front guide member 2 will not adhere to the rear guide member 2.

[0173] Please refer to Fig. 20 , Fig. 20 A schematic diagram of a guard plate along a third direction X provided in some embodiments of the present application.

[0174] In some embodiments of the present application, along the second direction Y, the first surface is inclined toward the flow guide member 2; the inclination amplitude of the first surface remains unchanged, and a third angle R3 is provided between the first surface and the horizontal plane.

[0175] Along the second direction Y, the first surface is a plane and is inclined downward.

[0176] In the technical solution of the above embodiment, the first surface is inclined toward the flow guide member 2 along the second direction Y, and the first surface can also play a flow guide role. Under the action of wind and gravity, the attached objects are more easily separated from the guard plate.

[0177] In some embodiments of the present application, along the second direction Y, the first surface is inclined toward the flow guide member 2; the inclination amplitude of the first surface gradually increases, or the inclination amplitude of the first surface gradually decreases.

[0178] Along the second direction Y, the first surface is an arc surface, and the arc surface can be a concave arc (the arc surface is located above the line connecting its two ends) or a convex arc (the arc surface is located below the line connecting its two ends).

[0179] In the technical solution of the above embodiment, the first surface is inclined toward the guide member 2 along the second direction Y, and the first surface is an arc surface. When removing the attachment, it is possible to choose to use wind force or reduce wind resistance, which is more flexible.

[0180] In some embodiments of the present application, the box body 20 includes a bottom wall, and the bottom wall includes a guard plate 10 .

[0181] The guard plate 10 serves as the bottom wall of the box body 20. The box body 20 and the guard plate 10 together enclose a storage space, in which a battery cell group is installed. The guard plate 10 serves as the bottom wall of the box body 20 and is installed on the box body 20 to bear the weight of the battery cell group. The guard plate 10 and the box body 20 are formed as one body. For example, the guard plate 10 may be processed first, and the plate of the box body 20 may be bent and then welded to the guard plate 10; or the guard plate 10 and the box body 20 may be made of the same plate, and the guide member 2 may be stamped out of the plate.

[0182] In the technical solution of the above embodiment, the guard plate 10 serves as the bottom wall of the box body 20, and the box body 20 and the guard plate 10 are formed as one piece, which can simplify the structure of the battery device and reduce the space occupied by the battery device in the first direction Z, thereby improving the passability of the battery device when it is in use.

[0183] In some embodiments of the present application, the bottom wall further includes a support plate, and the support plate is located between the battery cell 31 and the protective plate 10 .

[0184] The guard plate 10 can be installed on the box body 20 after the box body 20 is formed. When the box body 20 is formed, the support plate can serve as the bottom of the box body 20, and the guard plate 10 is installed on the support plate. The guard plate 10 can be fixedly installed on the support plate (for example, the guard plate 10 is installed on the support plate by welding and / or riveting), or it can be detachably installed on the support plate (for example, the guard plate 10 is fastened to the support plate by bolts).

[0185] In the technical solution of the above embodiment, the support plate is located between the battery cell 31 and the guard plate 10, and the guard plate 10 and the support plate can provide double-layer protection for the battery cell 31, thereby improving the protection strength. At the same time, the guard plate 10 can be formed separately and then assembled to the box body 20, thereby reducing the production difficulty and improving the production efficiency.

[0186] In a second aspect, some embodiments of the present application provide an electrical device, which includes a battery device provided by the above technical solution, and the battery device is used for supplying power.

[0187] The electric device provided in the embodiment of the present application has all the beneficial effects of the battery device in any of the embodiments of the first aspect mentioned above. For details, please refer to the specific description of the battery device in the above embodiments, and this embodiment will not be repeated here.

[0188] Some embodiments of the present application provide a battery device, which includes a box, a battery cell group and a guard plate. The guard plate provides protection below the battery cell 31, which can reduce the contamination of the battery by stones, mud and water during the driving of the vehicle. The guard plate includes a guard plate body 1 and a guide 2. A plurality of guides 2 are arranged in an array on the first surface of the guard plate body 1 and are arranged back to the battery cell 31, which can guide the flow of the attached objects on the guard plate. The guide 2 includes a guide surface, which is arranged away from the guard plate body 1, and the guide surface is inclined along the second direction Y. The attached objects on the lower surface of the guard plate can be detached under the action of inertia and wind force, thereby improving the cleanliness of the guard plate, and can effectively deal with the problem of ice and weight increase of the guard plate when the vehicle is driving in winter, thereby improving the safety of the vehicle.

[0189] 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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: include: A box body having a containing space; A battery cell group is arranged in the accommodation space, and the battery cell group includes a plurality of battery cells; A guard plate is arranged at the bottom of the box body, the guard plate comprises a guard plate body and a flow guide, a plurality of the flow guides are arranged in an array on the first surface of the guard plate body and are arranged away from the battery cells; The guide member comprises a guide surface, the guide surface is arranged to face away from the guard plate body, the guide surface has a first distance from the first surface along a first direction, the guide surface is inclined along a second direction, and the first direction intersects with the second direction; Along the first direction, a first angle is provided between the guide surface and the first surface, and the angle range of the first angle is 5° to 45°.

2. The battery device according to claim 1, characterized in that: Along the second direction, the first distance gradually increases, and the magnitude of the increase remains consistent.

3. The battery device according to claim 1, characterized in that: Along the second direction, the first distance gradually increases, and the magnitude of the increase gradually rises; or Along the second direction, the first distance gradually increases, and the increase amplitude gradually decreases; or Along the second direction, the first distance gradually increases, and the increase amplitude first increases and then decreases; or Along the second direction, the first distance gradually increases, and the magnitude of the increase first decreases and then increases.

4. The battery device according to claim 1, characterized in that: Along the second direction, the first distance ranges from 0 mm to 3 mm.

5. The battery device according to claim 1, characterized in that: Along the second direction, two ends of the flow guide have a second distance; Along the third direction, the two side surfaces of the guide member have a third distance; The second distance is greater than the maximum value of the third distance, or the second distance is less than the maximum value of the third distance, or the second distance is equal to the maximum value of the third distance; The first direction, the second direction, and the third direction are perpendicular to each other.

6. The battery device according to claim 5, characterized in that: Along the second direction, the third distance gradually decreases.

7. The battery device according to claim 6, characterized in that: Along the second direction, the magnitude by which the third distance decreases remains consistent.

8. The battery device according to claim 7, characterized in that: Along the third direction, a second angle is provided between the two side surfaces of the guide member, and the angle range of the second angle is 30° to 90°.

9. The battery device according to claim 6, characterized in that: Along the second direction, the third distance decreases gradually; or Along the second direction, the third distance decreases gradually; or Along the second direction, the amplitude by which the third distance decreases first increases and then decreases; or Along the second direction, the amplitude by which the third distance decreases first decreases and then increases.

10. The battery device according to claim 5, characterized in that: Along the second direction, the third distance first increases and then decreases.

11. The battery device according to claim 10, characterized in that: The guide surface is in a water drop shape, and along the second direction, the amplitude of the third distance gradually decreases; Along the second direction, the amplitude of the third distance decreasing first gradually increases and then remains consistent.

12. The battery device according to claim 10, characterized in that: Along the second direction, the magnitude of the increase in the third distance gradually decreases; Along the second direction, the amplitude of the third distance decreasing gradually increases first and then gradually decreases; or Along the second direction, the amplitude by which the third distance decreases first gradually increases, then remains consistent, and finally gradually decreases.

13. The battery device according to claim 5, characterized in that: Along the second direction and the third direction, adjacent flow guide members are arranged at intervals.

14. The battery device according to claim 5, characterized in that: Along the third direction, adjacent flow guide members are connected; Along the second direction, adjacent flow guide members are staggered and distributed.

15. The battery device according to claim 1, characterized in that: The surfaces of the guard plate body and the guide member are both provided with a hydrophobic layer.

16. The battery device according to claim 1, characterized in that: The guard plate body and the flow guide are integrally formed; Along the first direction, the average thickness of the guide member is equal to the average thickness of the guard plate body; or Along the first direction, the average thickness of the guide member is greater than the average thickness of the guard plate body.

17. The battery device according to claim 1, characterized in that: The flow guide is installed on the guard plate body; The guard plate body is made of metal material, and the flow guide is made of polymer material.

18. The battery device according to claim 1, characterized in that The first surface is perpendicular to the first direction.

19. The battery device according to claim 1, characterized in that: Along the second direction, the first surface is inclined toward the guide member; The inclination amplitude of the first surface remains unchanged, and a third angle is set between the first surface and the horizontal plane; or The inclination of the first surface gradually increases; or The inclination amplitude of the first surface decreases gradually.

20. The battery device according to claim 1, characterized in that The box body includes a bottom wall, and the bottom wall includes the guard plate.

21. The battery device according to claim 20, characterized in that The bottom wall further includes a support plate, and the support plate is located between the battery cell and the guard plate.

22. An electrical device, characterized in that: Comprising a battery device as claimed in any one of claims 1 to 21, the battery device is used for supplying power.

Images