Battery device and electric device

Abstract

The battery device comprises a battery high-voltage box, the battery high-voltage box comprises a high-voltage box upper cover and a high-voltage box main body, the high-voltage box upper cover comprises an upper cover body and a protective part, the high-voltage box main body is covered with the upper cover body, and the upper cover body is provided with a hollow area; the protection piece covers at least part of the hollowed-out area and is detachably connected with the upper cover body through a plurality of ribs arranged on the outer peripheral side of the protection piece and the inner peripheral side of the upper cover body. Therefore, the protective part is detachably connected with the upper cover body through the plurality of ribs, the difficulty of detaching the protective part from the upper cover body can be reduced, and the upper cover body can cover at least part of the hollow area in the state that the protective part is detachably connected with the upper cover body through the ribs, so that a better protective effect is achieved; and the protection piece can be detached from the upper cover body through the ribs so as to expose the hollow area, so that the high-voltage box upper cover can adapt to different high-voltage box main bodies, the compatibility of the design of the high-voltage box upper cover is improved, and the production cost of the battery high-voltage box is reduced.

Description

Technical Field

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

[0002] As the name suggests, the battery high-voltage box is a key component in a vehicle for distributing high-voltage electrical energy. In new energy vehicles, particularly pure electric and hybrid vehicles, the battery high-voltage box carries the crucial task of safely and efficiently distributing the high-voltage direct current generated by the battery pack to various electrical devices.

[0003] The structures of the battery high-voltage boxes equipped in cars with different configurations are different. The battery high-voltage boxes contain different electrical components, such as high-voltage connecting copper bars, wiring harnesses and relays, and the upper cover of the battery high-voltage box needs to be adapted to these accessories. As a result, battery high-voltage boxes with different configurations need to be equipped with different upper covers, making the upper cover of the battery high-voltage box less compatible. Utility Model Content

[0004] The main purpose of this application is to provide a battery device and an electrical device, aiming to solve the technical problem in the prior art that high-voltage boxes with different configurations need to be equipped with different upper covers, resulting in poor compatibility of the high-voltage box upper covers.

[0005] To solve the above problems, the present application provides a battery device, which includes a battery high-voltage box, the battery high-voltage box includes a high-voltage box upper cover and a high-voltage box main body, the high-voltage box upper cover includes an upper cover body and a protective member, the upper cover body is covered on the high-voltage box main body, and the upper cover body has a hollow area; the protective member covers at least part of the hollow area, and the protective member is detachably connected to the upper cover body through a detachable structure; the detachable structure includes a plurality of ribs, each rib is connected between the outer peripheral side of the protective member and the inner peripheral side of the upper cover body, and the plurality of ribs are arranged at intervals along the outer peripheral side of the protective member. Therefore, the ribs are arranged between the outer peripheral side of the protective part and the inner peripheral side of the upper cover body, which can reduce the difficulty of removing the protective part from the upper cover body. When the protective part is detachably connected to the upper cover body through the ribs, the upper cover body can cover at least part of the hollow area, so that when the upper cover body is covered on the high-voltage box body, the protective part can play a better protective role, and the protective part can also be removed from the upper cover body through the ribs to reveal the hollow area, so that the high-voltage box upper cover can adapt to different high-voltage box bodies, improve the compatibility of the high-voltage box upper cover design, and reduce the production cost of the battery high-voltage box.

[0006] In some embodiments, the thickness of the ribs is less than the thickness of the protective member, thereby further reducing the difficulty of removing the protective member from the upper cover body through the ribs.

[0007] In some embodiments, the distance between the outer circumference of the protective member and the inner circumference of the upper cover is greater than or equal to 1 mm and less than or equal to 4 mm. This can reduce the risk of use caused by an excessively large distance between the outer circumference of the protective member and the inner circumference of the upper cover, and can also reduce the difficulty of removing the protective member from the upper cover via the detachable structure due to an excessively small distance between the outer circumference of the protective member and the inner circumference of the upper cover.

[0008] In some embodiments, the detachable structure includes a buckle and a slot, and one of the upper cover and the protective member is provided with a buckle, and the other is provided with a slot, and the upper cover and the protective member are detachably connected via the buckle and the slot. Thus, one of the upper cover and the protective member is provided with a buckle, and the other is provided with a slot, and the buckle and the slot cooperate to detachably connect the protective member to the upper cover, thereby facilitating the disassembly and assembly of the protective member and the upper cover.

[0009] In some embodiments, the upper cover and the protective member are interferingly fitted to allow the protective member and the upper cover to be detachably connected. Thus, the interference fit makes the protective member and the upper cover detachable, reduces the difficulty of detachably connecting the upper cover and the protective member, and improves the production efficiency of the high-voltage box upper cover.

[0010] In some embodiments, the upper cover includes a covering body and a side edge portion, the covering body is used to cover the high-voltage box body, the side edge portion is connected to the covering body on the side facing the high-voltage box body, the side edge portion is provided with a side hollow area, and the protective member includes a side guard, the side guard covers at least a portion of the side hollow area, and is connected to the side edge portion through a detachable structure. Thus, the side edge portion is provided with a side hollow area, the side guard covers at least a portion of the side hollow area, and thus can provide better protection for the high-voltage box body, and the side guard is detachably connected to the side edge portion corresponding to the side hollow area through the detachable structure, making it easy to remove the side guard from the side edge portion through the detachable structure to reveal the side hollow area, so that the high-voltage box upper cover can be compatible with the high-voltage box body with electrical components arranged on the side edge portion, thereby improving the compatibility of the high-voltage box upper cover design and reducing the production cost of the battery high-voltage box.

[0011] In some embodiments, the side hollow region includes a first side hollow region and a second side hollow region, the first side hollow region and the second side hollow region are spaced apart, the side guard includes a first side guard and a second side guard, the first side guard covers at least a portion of the first side hollow region, the second side guard covers at least a portion of the second side hollow region, and the first side guard and the second side guard are both connected to the side edge portion via a detachable structure. Thus, the side edge portion is provided with the first side hollow region and the second side hollow region spaced apart, and at least a portion of the first side hollow region and the second side hollow region are covered by the first side guard and the second side guard, respectively. The first side guard and the second side guard are both connected to the side edge portion via a detachable structure to provide better protection for the high-voltage box body, and the first side guard and the second side guard can also be removed via the detachable structure, so that the high-voltage box cover is compatible with a high-voltage box body having multiple electrical components spaced apart on the side edge portion, thereby improving the compatibility of the high-voltage box cover design and reducing the production cost of the battery high-voltage box.

[0012] In some embodiments, the first side guard includes a first protective cover and a second protective cover that are bent and connected, the first side empty area includes a first area and a second area, the first protective cover covers at least a portion of the first area, and the second protective cover covers at least a portion of the second area. Thus, at the first side empty area, the first side empty area includes a first area and a second area that are interconnected, and the surfaces where the first area and the second area are located are not in the same plane, the first protective cover covers at least a portion of the first area, and the second protective cover covers at least a portion of the second area, and the first protective cover is bent and connected to the second protective cover, so that the first protective cover and the second protective cover protect the high-voltage box body in different directions. When the first protective cover and the second protective cover are removed through the detachable structure, the interconnected first area and the second area can reduce the risk of interference between the electrical components arranged at the corresponding positions and the side edge portion.

[0013] In some embodiments, the cover body is provided with a first front hollow region, the first front hollow region communicating with a second side hollow region, the second side protective member includes a third protective cover and a fourth protective cover connected by a bend, the third protective cover covering at least a portion of the second side hollow region, the fourth protective cover covering at least a portion of the first front hollow region, and the fourth protective cover being connected to the cover body via a detachable structure. Thus, the second side hollow region provided at the side edge portion communicates with the first front hollow region provided on the cover body, allowing the first front hollow region and the second side hollow region to simultaneously avoid electrical components preset at corresponding locations, thereby reducing the risk of interference between the high-voltage box cover and the electrical components at the corresponding locations.

[0014] In some embodiments, the upper cover includes an annular protrusion and a covering body, the covering body is used to cover the high-voltage box body, the annular protrusion is connected to the side of the covering body away from the high-voltage box body to form a second positive hollow area, the protective member includes a positive protective member, the positive protective member covers at least part of the second positive hollow area, and is connected to the annular protrusion through a detachable structure. Thus, the annular protrusion is connected to the side of the covering body away from the high-voltage box body to form the second positive hollow area, the positive protective member covers part of the second positive hollow area, and the positive protective member is detachably connected to the annular protrusion through a detachable structure, and the positive protective member can play a better protective role on the high-voltage box body at the second positive hollow area through the positive protective member, and the positive protective member can also be removed from the covering body through the detachable structure to reveal the second positive hollow area, so that the high-voltage box upper cover can be compatible with the high-voltage box body in which the electrical components are arranged in the second positive hollow area of ​​the covering body, thereby improving the compatibility of the high-voltage box upper cover design and reducing the production cost of the battery high-voltage box.

[0015] In some embodiments, there are at least two positive guards, which are spaced apart and collectively cover at least a portion of the second positive hollow area. Thus, by collectively covering at least a portion of the second positive hollow area with at least two positive guards, each spaced apart and connected to the annular protrusion via a detachable structure, the second hollow area can be covered while also reducing the difficulty of removing the positive guard from the annular protrusion.

[0016] In some embodiments, the sidewall of the annular protrusion is provided with at least one pair of through-holes, the through-holes penetrating opposite surfaces of the sidewall of the annular protrusion. The two through-holes in the same pair are located on opposite sidewalls of the annular protrusion and are disposed oppositely in the direction of the spacing between the two opposing sidewalls. Thus, the annular protrusion is provided with at least one pair of through-holes, the pair of through-holes being disposed on opposite sidewalls of the annular protrusion and the pair of through-holes being disposed oppositely in the direction of the opposite sidewalls. The pair of through-holes can be used to secure electrical components disposed in the second positive hollow region, thereby improving the stability of the electrical components within the high-voltage box.

[0017] In some embodiments, the sidewall of the annular protrusion is provided with multiple pairs of through holes, which are spaced apart along the direction in which the sidewall of the annular protrusion extends. Thus, the annular protrusion is provided with multiple pairs of through holes, which are spaced apart along the direction in which the sidewall of the annular protrusion extends. This allows electrical components disposed in the second positive hollow region to be simultaneously secured through the multiple pairs of through holes, further improving the stability of the electrical components.

[0018] In order to solve the above problems, the present application provides an electrical device, which includes the above-mentioned battery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in 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 creative work.

[0020] Figure 1 is a schematic structural diagram of an electric device according to one or more embodiments;

[0021] Figure 2 is a schematic structural diagram of a battery high voltage box according to one or more embodiments;

[0022] Figure 3 is a structural schematic diagram of a first embodiment of a high-voltage box upper cover according to one or more embodiments;

[0023] Figure 4 is a structural schematic diagram of a second embodiment of a high-voltage box upper cover according to one or more embodiments;

[0024] Figure 5 is a structural schematic diagram of a third embodiment of a high-voltage box upper cover according to one or more embodiments;

[0025] Figure 6 is a schematic structural diagram of a protective member connected to an upper cover according to one or more embodiments;

[0026] Figure 7 is a schematic structural diagram of a protective member being removed from an upper cover according to one or more embodiments;

[0027] Figure 8 yes Figure 6 The schematic diagram of the partially enlarged structure of the high-voltage box cover at the dotted frame A is shown;

[0028] Figure 9 yes Figure 6 The schematic diagram of the partially enlarged structure of the high-voltage box cover at the dotted frame B is shown;

[0029] Figure 10 yes Figure 6 The schematic diagram of the partially enlarged structure of the high-voltage box cover at the dotted frame C shown;

[0030] Figure 11 yes Figure 10 A top view of the annular raised portion is shown.

[0031] Figure numbers: electrical device 1; battery device 2; front drive motor 3; rear drive motor 4; battery 5; battery high-voltage box 6; high-voltage box upper cover 7; upper cover body 20; cover body 30; side edge portion 40; hollow area 100; side hollow area 110; first side hollow area 111; first area 1111; second area 1112; second side hollow area 112; protective member 70; side protective member 400; first side protective member 410; first protective cover 411; second protective cover 412; second side protective member 420; third protective cover 421; fourth protective cover 422; front protective member 430; buckle 440; slot 450; first front hollow area 120; second front hollow area 130; annular protrusion 50; through hole 510; detachable structure 60; rib 610; high-voltage box body 8. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0033] 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.

[0034] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0035] References herein to "embodiments" 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 this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is 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.

[0036] 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.

[0037] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0038] 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 position relationship, are based on the orientation or position 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.

[0039] 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.

[0040] As the name suggests, the battery high-voltage box is a key component used to distribute high-voltage electrical energy in a car. In new energy vehicles, especially pure electric and hybrid vehicles, the battery high-voltage box carries the important task of safely and efficiently distributing the high-voltage direct current generated by the battery pack to various electrical devices. Vehicles with different configurations are equipped with battery high-voltage boxes with different structures. The battery high-voltage box houses different electrical components, such as high-voltage connecting copper bars, wiring harnesses, and relays. The top cover of the battery high-voltage box needs to be compatible with these electrical components, resulting in different top covers for battery high-voltage boxes of different configurations, making the top cover of the battery high-voltage box less compatible.

[0041] To solve the above problems, the present application provides a battery device and an electrical device, wherein the battery device includes a battery high-voltage box, the battery high-voltage box includes a high-voltage box cover and a high-voltage box body, the high-voltage box cover includes an upper cover body and a protective member, the upper cover body is provided on the high-voltage box body, and the upper cover body has a hollow area; the protective member covers at least part of the hollow area, and the protective member is detachably connected to the upper cover body. The protective member covers at least part of the hollow area and is detachably connected to the upper cover body to protect the high-voltage box body. After the protective member is removed from the upper cover body, the hollow area is exposed, and the hollow area can be used to set electrical components, so that the high-voltage box cover can be adapted to high-voltage box bodies of different configurations, thereby improving the compatibility of the high-voltage box cover design and reducing the production cost of the battery high-voltage box.

[0042] Specifically, see Figure 1 , Figure 1 is a schematic structural diagram of an electric device according to one or more embodiments.

[0043] The electrical device 1 includes a battery device 2, which is used to provide electrical energy to the electrical device 1 to maintain its operation. The electrical device 1 can be applied to the fields of new energy vehicles, aerospace, rail transportation, energy storage systems, and the like. The electrical device 1 can be a new energy vehicle, which can include pure electric vehicles, extended-range vehicles, and plug-in vehicles. The electrical device 1 can also include high-voltage electrical equipment, such as a drive motor, inverter, air conditioning compressor, heater, current converter, and on-board charger. The battery device 2 is electrically connected to each high-voltage electrical equipment to realize various functions of the vehicle. For example, the battery device 2 is connected to the drive motor, which is connected to the wheel axle to drive the vehicle. The drive motor can include a front drive motor 3 and / or a rear drive motor 4. The battery device 2 is electrically connected to the front drive motor 3 and / or the rear drive motor 4, so that the battery device 2 can be applied to front-wheel drive vehicles, rear-wheel drive vehicles, and four-wheel drive vehicles.

[0044] The battery device 2 may include a battery high-voltage box 6 and a battery 5. After the battery 5 is electrically connected to the battery high-voltage box 6, the battery high-voltage box 6 transmits electrical energy to various high-voltage electrical devices of the vehicle. The high-voltage electrical devices may include a converter to convert high-voltage electricity into low-voltage electricity for operation of the low-voltage electrical devices. The battery device 2 may also include a controller. The controller is electrically connected to the battery high-voltage box 6 and the battery 5 respectively. The battery high-voltage box 6 is further electrically connected to each high-voltage electrical device, so that the controller can control whether the battery high-voltage box 6 distributes electrical energy to each high-voltage electrical device, and can control parameters such as current and voltage provided to each high-voltage electrical device, so that the battery high-voltage box 6 can more reasonably distribute electrical energy.

[0045] The battery high-voltage box 6 includes a high-voltage box cover 7 and a main body 8. The cover 7 is mounted on the main body 8, which contains space for electrical components, including relays, fuses, pre-charge resistors, high-voltage copper bars, current and voltage sensors, insulation detection modules, and communication modules. The battery high-voltage box 6 includes a main circuit connection structure, such as the power input for the battery 5: the positive terminal of the battery 5 is connected to the main positive relay and the positive circuit of the main copper bar, while the negative terminal of the battery 5 is connected to the main negative relay and the negative circuit of the main copper bar to control the on and off of all electrical components. The battery high-voltage box 6 also includes branch circuits. For example, the positive and negative terminals of each branch circuit are electrically connected to the positive and negative circuits of the main positive and negative relays, respectively, that is, to the positive and negative main copper bars, respectively. Each branch circuit may also be connected in series with a separate relay to control the power supply to the high-voltage electrical equipment connected to each separate relay. Each branch circuit may also be connected in series with a fuse for overcurrent protection.

[0046] The battery high-voltage box 6 can be electrically connected to the front drive motor 3 and the rear drive motor 4 respectively. Due to the large number and variety of electrical components in the battery high-voltage box 6, the layout of the electrical components is relatively complex. To simplify the layout of the electrical components, the high-voltage box body 8 includes interfaces connected to the front drive motor 3 and the drive motor 4 respectively. The interface connected to the front drive motor 3 and the interface connected to the rear drive motor 4 are respectively arranged on both sides of the battery high-voltage box 6. The main copper bar connected to the positive or negative pole of the battery 5 extends from one end of the battery high-voltage box 6 to the other end to electrically connect to the front drive motor 3 interface and the rear drive motor 4 interface on both sides respectively. The branch circuits connected to each high-voltage electrical equipment, the front drive motor 3 and the rear drive motor 4 can be arranged in sequence in the extension direction of the main copper bar and electrically connected to the main copper bar respectively, thereby making the internal circuit more regular. The high-voltage box body 8 can also be provided with a fast charging interface and a slow charging interface. The fast charging interface and the slow charging interface can be electrically connected to the main copper bar through corresponding branch circuits to realize fast charging and slow charging functions. In addition, since some electrical components inside the high-voltage box body 8 are of different sizes and distributed in different positions, the extended main copper bar needs to avoid the larger electrical components, so that some main copper bars will protrude from the high-voltage box body 8 and extend out of the high-voltage box cover 7.

[0047] In addition, new energy vehicles have front-wheel drive, rear-wheel drive or four-wheel drive configurations, so the layout of the electrical components of the battery high-voltage box 6 of vehicles with different configurations is also different. For example, the battery high-voltage box 6 of a front-wheel drive vehicle only needs to be provided with a copper bar electrically connected to the front drive motor 3, the battery high-voltage box 6 of a rear-wheel drive vehicle only needs to be provided with a copper bar electrically connected to the rear drive motor 4, and a four-wheel drive vehicle needs to be provided with copper bars electrically connected to the front drive motor 3 and the rear drive motor 4 respectively. Moreover, the copper bars electrically connected to each drive motor need to extend from different areas of the high-voltage box cover 7, so that the battery high-voltage box 6 needs to be electrically connected to each drive motor. As a result, the battery high-voltage boxes 6 with different configurations need to be equipped with different covers, which makes the cover compatibility of the battery high-voltage box 6 poor.

[0048] In order to solve the above-mentioned related technical problems, the present application provides a battery device, see Figure 2 and Figure 3 , Figure 2 Schematic diagram of a battery high voltage box according to one or more embodiments. Figure 3 1 is a schematic structural diagram of a first embodiment of a high-voltage box upper cover according to one or more embodiments.

[0049] The battery device 2 includes a battery high-voltage box 6, which includes a high-voltage box upper cover 7 and a high-voltage box main body 8. The high-voltage box upper cover 7 includes an upper cover body 20 and a protective member 70. The upper cover body 20 is covered on the high-voltage box main body 8, and the upper cover body 20 has a hollow area 100; the protective member 70 covers at least part of the hollow area 100, and the protective member 70 is detachably connected to the upper cover body 20.

[0050] The upper cover 20 is attached to the high-voltage box body 8 and includes a hollowed-out area 100. This hollowed-out area 100 extends through two opposing surfaces of the upper cover 20, effectively connecting the housing of the battery high-voltage box 6 with the outside world. Due to the varying number and layout of electrical components within different high-voltage boxes, some components may need to extend beyond the upper cover 20 due to design requirements. Therefore, the hollowed-out areas 100 are located where the electrical components extend beyond the upper cover 20, providing a clear path for these components.

[0051] The protective member 70 is disposed in correspondence with the hollow region 100 and covers at least a portion of the hollow region 100. For example, the surface area of ​​the protective member 70 is smaller than the area of ​​the hollow region 100. The protective member 70 is located within the hollow region 100 and spaced from the peripheral sidewalls of the hollow region 100 so that the protective member 70 covers a portion of the hollow region 100. For another example, the surface area of ​​the protective member 70 is equal to the area of ​​the hollow region 100. The protective member 70 is embedded in the hollow region 100, and the outer edge of the protective member 70 and the inner edge of the hollow region 100 may match in shape, thereby abutting the outer edge of the protective member 70 and the inner edge of the hollow region 100 so that the protective member 70 covers the entire hollow region 100. For yet another example, the surface area of ​​the protective member 70 is larger than the area of ​​the hollow region 100, and the protective member 70 overlaps the outer periphery of the hollow region so that the protective member 70 covers the entire hollow region 100. The number of hollow areas 100 and protective members 70 is set correspondingly, and the number of hollow areas 100 can be multiple, with at least one protective member 70 corresponding to each hollow area 100. The protective member 70 and the upper cover 20 are detachably connected, which can facilitate separation of the protective member 70 from the upper cover 20 to reveal the hollow area 100 of the upper cover 20. The detachable connection can include a detachable detachable connection and a destructible detachable connection. As an example, the protective member 70 and the upper cover 20 are detachably connected, which can realize the installation and removal of the protective member 70 and the upper cover 20, and the original structure of the protective member 70 and the upper cover 20 is not easily damaged during the process of installing the protective member 70 on the upper cover 20 and the process of removing the protective member 70 from the upper cover 20, thereby allowing the high-voltage box upper cover 7 to be freely switched repeatedly between the two modes of installing the protective member 70 and removing the protective member 70. As another example, the protective member 70 is connected to the upper cover body 20 in a destructible detachable manner. After the protective member 70 is removed from the upper cover body 20, the original structure of the protective member 70 or the connection structure between the protective member 70 and the upper cover body 20 will be destroyed. However, the structure of the destructive detachable connection is simpler, which can reduce the structural complexity of the high-voltage box upper cover 7 and improve the production efficiency of the high-voltage box upper cover 7.

[0052] Through the above embodiment, when the protective member 70 and the upper cover body 20 are detachably connected, the upper cover body 20 can cover at least part of the hollow area 100, so that when the upper cover body 20 is covered on the high-voltage box body 8, the protective member 70 can play a better protective role, and the protective member 70 can also be removed from the upper cover body 20 to reveal the hollow area 100, so that the high-voltage box upper cover 7 is adapted to different high-voltage box bodies 8, thereby improving the compatibility of the design of the high-voltage box upper cover 7 and reducing the production cost of the battery high-voltage box 6.

[0053] In some embodiments, as Figure 3As shown, the protective member 70 is detachably connected to the upper cover 20 via the detachable structure 60. The protective member 70 can be connected to the upper cover 20 via the detachable structure 60, making it easy to remove the protective member 70 from the upper cover 20. For example, the detachable structure 60 may include, but is not limited to, a snap-on detachable structure, a locking detachable structure, and an integrated detachable structure. The protective member 70 is detachably connected to the upper cover 20 via the detachable structure 60, which is intended to reduce damage to the upper cover 20 during the removal of the protective member 70 and the upper cover 20. As an example, the snap-on detachable structure may include a snap-on member and a snap-on slot. One of the protective member 70 and the upper cover 20 is provided with a snap-on member, and the other is provided with a snap-on slot. For example, the snap-on member is provided on the protective member 70, and the snap-on slot is provided on the upper cover 20. One end of the clip is connected to the protective member 70, and the other end of the clip extends toward the corresponding clip groove and is clipped into the clip groove, thereby realizing a detachable connection between the protective member 70 and the upper cover 20. As another example, the locking detachable structure may include a locking member and a locked member, and the locking member and the locked member may be respectively provided on one of the upper cover 20 and the protective member 70, and the protective member 70 and the upper cover 20 are detachably connected through the locking cooperation of the locking member and the locked member. As another example, the integrated detachable structure, the protective member 70 and the upper cover 20 are integrally formed during production, and the two ends of the integrated detachable structure are respectively connected to the protective member 70 and the upper cover 20. The structural strength of the integrated detachable structure may be less than the structural strength of the upper cover 20 and the protective member 70, thereby facilitating the separation of the integrated detachable structure from the protective member 70 or the upper cover 20 to realize a detachable connection between the protective member 70 and the upper cover 20.

[0054] In some embodiments, the upper cover 20 and the protective member 70 are interference fit so that the protective member 70 and the upper cover 20 can be detachably connected. The sizes of the upper cover 20 and the protective member 70 can be matched, and the protective member 70 can be installed on the upper cover 20 by interference fit, which facilitates the installation and removal of the protective member 70 through a simple structure. For example, in addition to passing through the two opposite surfaces of the upper cover 20, the hollow area 100 can also pass through the side wall of one side of the upper cover 20 to form an opening. The protective member 70 can be inserted through the opening and cover at least part of the hollow area 100, and be connected to the upper cover 20 by interference fit. The protective member 70 can also be withdrawn from the hollow area 100 through the opening, thereby achieving a detachable connection between the protective member 70 and the upper cover 20 by interference fit.

[0055] See also Figure 4 , Figure 4 1 is a schematic structural diagram of a second embodiment of a high-voltage box upper cover according to one or more embodiments.

[0056] The detachable structure 60 includes a buckle 440 and a slot 450. One of the upper cover 20 and the protective member 70 is provided with a buckle 440, and the other is provided with a slot 450. The upper cover 20 and the protective member 70 are detachably connected via the buckle 440 and the slot 450. The detachable structure 60 includes a buckle 440 and a slot 450. One of the upper cover 20 and the protective member 70 is provided with a buckle 440, and the other is provided with a slot 450. The protective member 70 is detachably connected to the upper cover 20 by using the buckle 440 and the slot 450, so as to facilitate the assembly and disassembly of the protective member 70 and the upper cover 20. There are multiple buckles 440 and slots 450, and the number of the buckles 440 and the slots 450 are the same. There can be a one-to-one correspondence between the buckles 440 and the slots 450. One buckle 440 is provided in one slot 450. Figure 4 As shown, a plurality of slots are provided on the upper cover 20 , and a plurality of buckles 440 are provided on the protective member 70 , and each buckle 440 is provided on a slot 450 .

[0057] See also Figure 5 , Figure 5 1 is a schematic structural diagram of a third embodiment of a high-voltage box upper cover according to one or more embodiments.

[0058] The outer periphery of the protective member 70 is spaced apart from the inner periphery of the upper cover 20, and the detachable structure 60 is connected between the outer periphery of the protective member 70 and the inner periphery of the upper cover 20. The protective member 70 is located within the hollow region 100, and the outer periphery of the protective member 70 and the inner periphery of the upper cover 20 corresponding to the hollow region 100 are both spaced apart. The detachable structure 60 is provided between the outer periphery of the protective member 70 and the inner periphery of the upper cover 20, and the detachable structure 60 is connected between the outer periphery of the protective member 70 and the inner periphery of the upper cover 20. In a specific embodiment, the connection strength between the detachable structure 60 and the protective member 70 may be greater than the connection strength between the detachable structure 60 and the upper cover 20. Thus, during the process of removing the protective member 70 through the detachable structure 60, the detachable structure 60 is more likely to break from the upper cover 20 while maintaining its connection with the protective member 70, so as to facilitate simultaneous separation of the detachable structure 60 and the protective member 70 from the upper cover 20, thereby facilitating removal of the protective member 70 from the upper cover 20 through the detachable structure 60 to reveal the hollow area 100. For example, the radial dimension of the end of the detachable structure 60 connected to the protective member 70 is greater than the radial dimension of the end of the detachable structure 60 connected to the upper cover 20.

[0059] In some embodiments, the detachable structure 60 includes a plurality of ribs 610, each of which is connected between the outer periphery of the protective member 70 and the inner periphery of the upper cover 20. The ribs 610 are spaced apart along the outer periphery of the protective member 70. The ribs 610 can be understood as strip-like structures having a relatively small thickness and extending from the outer periphery of the protective member 70 toward the inner periphery of the upper cover 20. The ribs 610 are spaced apart along the outer periphery of the protective member 70. The ribs 610 can be evenly spaced along the outer periphery of the protective member 70, or partially evenly spaced, with smaller or larger spacing in other portions. The specific spacing between the ribs 610 can be set according to actual conditions. The structural strength of the ribs 610 is less than that of the upper cover 20 and the protective member 70, making the ribs 610 easier to break relative to the upper cover 20 and the protective member 70, thereby reducing the difficulty of removing the protective member 70. In some other embodiments, the rib 610 may be a rectangular parallelepiped strip structure, that is, a square cross-section, or a cylindrical strip structure, that is, a circular or quasi-circular cross-section.

[0060] In some embodiments, the thickness of the ribs 610 is less than that of the protective member 70. Based on the aforementioned protective member 70 and ribs 610, the thickness of each rib 610 can be less than that of the protective member 70, thereby further reducing the difficulty of removing the protective member 70 from the upper cover 20 and improving production efficiency. The width of the ribs 610 can be adjusted based on actual conditions to ensure both secure connection between the protective member 70 and the upper cover 20 and ease of removal.

[0061] In some embodiments, the distance between the outer circumference of the protective member 70 and the inner circumference of the upper cover 20 is greater than or equal to 1 mm and less than or equal to 4 mm. The distance between the outer circumference of the protective member 70 and the inner circumference of the upper cover 20 may be greater than or equal to 1 mm and less than or equal to 4 mm, greater than or equal to 1.5 mm and less than or equal to 4 mm, greater than or equal to 2 mm and less than or equal to 4 mm, greater than or equal to 1 mm and less than or equal to 3 mm, or greater than or equal to 2 mm and less than or equal to 3 mm, etc. Specifically, the distance between the outer circumference of the protective member 70 and the inner circumference of the upper cover 20 may be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, or 4 mm. Therefore, on the basis of a number of ribs 610 being arranged between the outer peripheral side of the protective part 70 and the inner peripheral side of the upper cover body 20, the distance from the outer peripheral side of the protective part 70 to the inner peripheral side of the upper cover body 20 is controlled within the range of 1 mm to 4 mm, which can improve the use risk caused by the excessive distance between the outer peripheral side of the protective part 70 and the inner peripheral side of the upper cover body 20, and at the same time, it can also improve the problem that it is difficult to remove the protective part 70 from the upper cover body 20 through the detachable structure 60 due to the excessively small distance between the outer peripheral side of the protective part 70 and the inner peripheral side of the upper cover body 20.

[0062] In some other embodiments, the detachable structure 60 may further include an easy-folding groove, which may be located on the protective member 70, penetrate one surface of the protective member 70, and be arranged around the circumference of the protective member 70, thereby reducing the local structural strength of the protective member 70 and achieving a detachable connection between the protective member 70 and the upper cover 20. Of course, the detachable structure 60 may also include easy-folding holes, which may be provided on the protective member 70 and penetrate two opposite surfaces of the protective member 70. Multiple easy-folding holes may be arranged at intervals around the circumference of the protective member 70 to achieve a detachable connection between the protective member 70 and the upper cover 20.

[0063] It should be noted that the upper cover body 20 and the protective part 70 can be detachably connected by one or more of the above-mentioned detachable connection methods, that is, the upper cover body 20 and the protective part 70 can be detachably connected by means of the buckle 440 and the slot 450, or the upper cover body 20 and the protective part 70 can be detachably connected by means of the rib 610, or the upper cover body 20 and the protective part 70 can be detachably connected by means of an interference fit, or the upper cover body 20 and the protective part 70 can be detachably connected by means of at least two of the above-mentioned buckle 440 and the slot 450, the above-mentioned rib 610 and the above-mentioned interference fit, and the specific position can be set according to actual conditions.

[0064] See also Figure 6 and Figure 7 , Figure 6 It is a schematic structural diagram of a protective member connected to an upper cover according to one or more embodiments. Figure 7 It is a schematic structural diagram of the protective member being removed from the upper cover according to one or more embodiments.

[0065] The upper cover 20 includes a covering body 30 and a side edge portion 40. The covering body 30 is used to cover the high-voltage box body 8. The side edge portion 40 is connected to the side of the covering body 30 facing the high-voltage box body 8. The side edge portion 40 is provided with a side hollow area 110. The protective member 70 includes a side protective member 400. The side protective member 400 covers at least a portion of the side hollow area 110 and is connected to the side edge portion 40 through a detachable structure 60. The side hollow area 110 is provided in the side edge portion 40 to reserve a position for the copper bar connected to the drive motor. The side protective member 400 is provided in the side hollow area 110 so that the side protective member 400 covers at least a portion of the side hollow area 110, and the side protective member 400 is detachably connected to the side edge portion 40 through the detachable structure 60 to be compatible with the high-voltage box body 8 with or without a copper bar extending from the side edge portion 40. Of course, the copper bar can also be other electrical components. When the electrical components need to extend from the side edge portion 40 to accommodate the space due to design requirements, it is necessary to set the side hollow area 110 and the side protective member 400 in the corresponding area to be compatible with high-voltage box bodies 8 of different configurations. Among them, the number of side hollow areas 110 and side protective members 400 can be multiple, and at least one side protective member 400 is corresponding to each of the multiple side hollow areas 110, and the multiple corresponding side hollow areas 110 and side protective members 400 can be respectively located on different sides of the side edge portion 40, thereby being compatible with more high-voltage box bodies 8 of different configurations.

[0066] In some embodiments, the side hollow area 110 includes a first side hollow area 111 and a second side hollow area 112, which are spaced apart. The side guard 400 includes a first side guard 410 and a second side guard 420. The first side guard 410 covers at least a portion of the first side hollow area 111, and the second side guard 420 covers at least a portion of the second side hollow area 112. The first side guard 410 and the second side guard 420 are both connected to the side edge portion 40 via a detachable structure 60. When multiple electrical components need to be arranged in the side hollow area 110 of the side edge portion 40, for example, the side edge portion 40 needs to extend a positive copper bar and a negative copper bar connected to the drive motor. A first side hollow area 111 and a second side hollow area 112 can be provided in the side hollow area 110. The first side hollow area 111 and the second side hollow area 112 are spaced apart. The first side hollow area 111 and the second side hollow area 112 each allow one of the copper bars to extend out. The first side hollow area 111 and the second side hollow area 112 are respectively provided with a first side guard 410 and a second side guard 420. The first side guard 410 and the second side guard 420 respectively cover at least a portion of the first side hollow area 111 and the second side hollow area 112, and both the first side guard 410 and the second side guard 420 are connected to the side edge portion 40 via a detachable structure 60. Therefore, the first side guard 410 and the second side guard 420 are both connected to the side edge portion 40 at the corresponding position through the detachable structure 60, which can provide better protection for the high-voltage box main body 8, and the first side guard 410 and the second side guard 420 can also be removed through the detachable structure 60, so that the high-voltage box cover 7 can be compatible with the high-voltage box main body 8 with multiple electrical components arranged at intervals on the side edge portion 40, thereby improving the compatibility of the design of the high-voltage box cover 7 and reducing the production cost of the battery high-voltage box 6.

[0067] See also Figure 8 , Figure 8 yes Figure 6 The diagram shows a partially enlarged structural diagram of the high-voltage box cover at the dotted frame A.

[0068] In some embodiments, the first side guard 410 includes a first protective cover 411 and a second protective cover 412 connected by a bend. The first side clearance area 111 includes a first area 1111 and a second area 1112. The first protective cover 411 covers at least a portion of the first area 1111, and the second protective cover 412 covers at least a portion of the second area 1112. Due to design requirements, electrical components in the corresponding positions of the first side clearance area 111 may interfere with the side edge portion 40. Therefore, a first area 1111 and a second area 1112 that are interconnected can be set in the first side empty area 111 of the side edge portion 40. The openings of the first area 1111 and the second area 1112 are in different directions and are at least partially covered by the first protective cover 411 and the second protective cover 412 that are bent and connected. The first protective cover 411 and the second protective cover 412 are connected to the side edge portion 40 at corresponding positions. The first protective cover 411 at least partially covers the first area 1111, and the second protective cover 412 at least partially covers the second area 1112. The first protective cover 411 and the second protective cover 412 are also detachably connected to the side edge portion 40 via a detachable structure 60. Thus, the bent first protective cover 411 and the second protective cover 412 can protect the high-voltage box body 8 in different directions. After the first protective cover 411 and the second protective cover 412 are removed via the detachable structure 60, the exposed first area 1111 and the second area 1112 can reduce the risk of interference between electrical components and the side edge portion 40. In other embodiments, the first protective cover 411 and the second protective cover 412 may be spaced apart or connected by a bent detachable structure 60. The first protective cover 411 and / or the second protective cover 412 may be detached as needed to accommodate extension designs of electrical components of different sizes.

[0069] In other embodiments, the first side empty area 111 may also include a third area, and the first side protective member 410 may also include a fifth protective cover. The first area 1111, the second area 1112 and the third area are interconnected, and the opening directions may be different, and are at least partially covered by the bent and connected first protective cover 411, the second protective cover 412 and the fifth protective cover. The first protective cover 411, the second protective cover 412 and the fifth protective cover can also be detachably connected to the side edge portion 40 through the detachable structure 60, thereby further reducing the risk of interference between the side edge portion 40 and electrical components.

[0070] See also Figure 9 , Figure 9 yes Figure 6 The diagram shows a partially enlarged structural diagram of the high-voltage box cover at the dotted frame B.

[0071] In some embodiments, the cover body 30 is provided with a first front hollow area 120, which is connected to the second side hollow area 112. The second side protective member 420 includes a third protective cover 421 and a fourth protective cover 422, which are connected by a bend. The third protective cover 421 covers at least a portion of the second side hollow area 112, and the fourth protective cover 422 covers at least a portion of the first front hollow area 120. The fourth protective cover 422 is connected to the cover body 30 via a detachable structure 60. Due to interference with other electrical components, some electrical components need to extend out of the second side hollow area 112 of the side edge portion 40 and also occupy part of the cover body 30. To address this issue, a first front hollow region 120 is provided on the cover body 30, connecting the first front hollow region 120 to the second side hollow region 112. The second side guard 420 is divided into a third protective cover 421 and a fourth protective cover 422. The third and fourth protective covers 421 and 422 are bent and connected to cover the interconnected first front hollow region 120 and the second side hollow region 112. Furthermore, the third and fourth protective covers 421 and 422 are detachably connected to the side edge portion 40 and the cover body 30, respectively, via a detachable structure 60. Thus, the third protective cover 421 and the fourth protective cover 422 can respectively protect the first front hollow area 120 and the second side hollow area 112. After the third protective cover 421 and the fourth protective cover 422 are removed from the side edge portion 40 and the covering body 30 through the detachable structure 60, the high-voltage box cover 7 can be compatible with the high-voltage box body 8 in which electrical components are arranged in the first front hollow area 120 and the second side hollow area 112, and the exposed first front hollow area 120 and the second side hollow area 112 can simultaneously avoid the electrical components preset in the corresponding positions, thereby reducing the risk of the high-voltage box cover 7 interfering with the electrical components in the first front hollow area 120 and the second side hollow area 112.

[0072] See also Figure 10 and Figure 11 , Figure 10 yes Figure 6 The diagram shows a partially enlarged structural diagram of the high-voltage box cover at the dotted frame C. Figure 11 yes Figure 10 A top view of the annular raised portion is shown.

[0073] The upper cover 20 includes an annular protrusion 50 and a covering body 30. The covering body 30 is used to cover the high-voltage box body 8. The annular protrusion 50 is connected to the side of the covering body 30 away from the high-voltage box body 8 to form a second positive hollow area 130. The protective member 70 includes a positive protective member 430. The positive protective member 430 covers at least a portion of the second positive hollow area 130 and is connected to the annular protrusion 50 through a detachable structure 60. Due to layout requirements or large size, individual electrical components in the high-voltage box body 8 will protrude from other electrical components. For example, the main copper bar extending from one end to the other end of the battery high-voltage box 6 needs to avoid interference from other electrical components, thereby making part of the main copper bar protrude more from other electrical components. In order to make the high-voltage box cover 7 compatible with the internal electrical components, a second positive hollow area 130 is provided at the position of the protruding portion of the cover body 30 and the main copper bar to avoid the main copper bar, thereby making the battery high-voltage box 6 more compact and the size of the high-voltage box cover 7 smaller, reducing material costs. In addition, the upper cover body 20 also includes an annular protrusion 50, which corresponds to the second positive hollow area 130 and is provided on the side of the cover body 30 facing away from the high-voltage box body 8. The annular protrusion 50 is provided around the second positive hollow area 130 to form a receiving cavity within the annular protrusion 50 for accommodating the protruding electrical components. A positive protective member 430 is provided on the side of the annular protrusion 50 away from the upper cover body 20. The positive protective member 430 covers at least a portion of the second positive hollow area 130, thereby protecting the electrical components. The size of the annular protrusion 50 can match the protruding size of the electrical component, so as to match the size of the high-voltage box cover 7, thereby reducing the encroachment on the external space.

[0074] In some usage scenarios, the electrical components located in the second front hollow region 130 may need to be exposed, for example, to connect to other external electrical components. To this end, the front guard 430 is detachably connected to the annular protrusion 50 via a detachable structure 60. This allows the electrical components within the annular protrusion 50 to be connected to other electrical components after the front guard 430 is removed from the annular protrusion 50 via the detachable structure 60. As a result, the front guard 430 effectively protects the electrical components located in the second front hollow region 130. Furthermore, the front guard 430 can be removed from the cover body 30 via the detachable structure 60 to expose the second front hollow region 130. This allows the high-voltage box cover 7 to be compatible with the high-voltage box body 8, which has electrical components connected to external electrical components located in the second front hollow region 130 of the cover body 30. This improves the design compatibility of the high-voltage box cover 7 and reduces the production cost of the battery high-voltage box 6. The overall size of the high-voltage box cover 7 can also be reduced, making the structure of the high-voltage box cover 7 more compact and smaller.

[0075] In some embodiments, there are at least two positive protective members 430, which are spaced apart and collectively cover at least a portion of the second positive hollow area 130. By collectively covering at least a portion of the second positive hollow area 130 with the at least two positive protective members 430, each positive protective member 430 is spaced apart, and each protective member 70 is connected to the annular raised portion 50 via a detachable structure 60. Thus, the at least two spaced-apart positive protective members 430 can protect the second hollow area 100. The spaced-apart arrangement of the at least two positive protective members 430 also reduces the connection between adjacent positive protective members 430, thereby reducing the difficulty of removing the positive protective members 430 from the annular raised portion 50.

[0076] The number of positive protective members 430 can be two, three, or four, etc., and the specific number can be set according to actual conditions. In addition, at least some of the positive protective members 430 connected to the annular protrusion 50 can be removed via the detachable structure 60. Therefore, when different numbers of positive protective members 430 are removed, the area exposed by the second positive hollow region 130 can be changed, thereby compatibility with electrical components of different sizes, further improving the compatibility of the high-voltage box cover 7.

[0077] In some embodiments, the sidewall of the annular protrusion 50 is provided with at least one pair of through-holes 510. The through-holes 510 extend through opposing surfaces of the sidewall of the annular protrusion 50. The two through-holes 510 in a pair are located on opposing sidewalls of the annular protrusion 50 and are disposed oppositely in the direction separating the opposing sidewalls. The sidewall of the annular protrusion 50 is provided with at least one pair of through-holes 510. The through-holes 510 extend through opposing surfaces of the sidewall of the annular protrusion 50. Each pair of through-holes 510 can be located on opposing sidewalls of the annular protrusion 50, allowing an insulating strip-shaped fastener, such as an insulating rope or wire, to pass through the pair of through-holes 510 to secure the electrical component located in the second positive hollow region 130. Furthermore, the through-holes 510 in a pair can be disposed oppositely in the direction of the opposing sidewalls, reducing the distance between the through-holes 510. This facilitates the insertion of a fastener through the pair of through-holes 510, thereby reducing the difficulty of securing the component. In other embodiments, at least one pair of through holes 510 may also be provided on adjacent side walls of the annular protrusion 50. Thus, the electrical components are fixed by the fixing member and the at least one pair of through holes 510, thereby improving the stability of the electrical components inside the battery high-voltage box 6.

[0078] In some embodiments, the sidewall of the annular protrusion 50 is provided with multiple pairs of through holes 510, which are spaced apart along the direction in which the sidewall of the annular protrusion 50 extends. Thus, the annular protrusion 50 is provided with multiple pairs of through holes 510, which are spaced apart along the direction in which the sidewall of the annular protrusion 50 extends. Thus, the multiple pairs of through holes 510 can simultaneously secure electrical components pre-set in the second positive hollow region 130, further improving the stability of the electrical components.

[0079] To sum up, when the protective member 70 and the upper cover body 20 are detachably connected, the upper cover body 20 can cover at least part of the hollow area 100, so that when the upper cover body 20 is covered on the high-voltage box body 8, the protective member 70 can play a better protective role, and the protective member 70 can also be removed from the upper cover body 20 to reveal the hollow area 100, so that the high-voltage box upper cover 7 can adapt to different high-voltage box bodies 8, thereby improving the compatibility of the design of the high-voltage box upper cover 7 and reducing the production cost of the battery high-voltage box 6.

[0080] 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 includes a battery high-voltage box, which includes a high-voltage box upper cover and a high-voltage box body. The high-voltage box upper cover includes: An upper cover body, which is provided on the high-voltage box body and has a hollow area; a protective member covering at least a portion of the hollow area, the protective member being detachably connected to the upper cover body via a detachable structure; The detachable structure includes a plurality of ribs, each of which is connected between the outer circumference of the protective member and the inner circumference of the upper cover, and the plurality of ribs are arranged at intervals along the outer circumference of the protective member.

2. The battery device according to claim 1, wherein: The thickness of the rib is smaller than the thickness of the protective element.

3. The battery device according to claim 1, wherein: A distance between an outer circumference of the protective member and an inner circumference of the upper cover is greater than or equal to 1 mm and less than or equal to 4 mm.

4. The battery device according to claim 1, wherein: The detachable structure includes a buckle and a slot. One of the upper cover and the protective member is provided with a buckle, and the other is provided with a slot. The upper cover and the protective member are detachably connected via the buckle and the slot.

5. The battery device according to claim 1, wherein: The upper cover body and the protective member are interference-fitted so that the protective member and the upper cover body are detachably connected.

6. The battery device according to any one of claims 1 to 4, characterized in that: The upper cover body includes a covering body and a side edge portion, the covering body is used to cover the high-voltage box body, the side edge portion is connected to the side of the covering body facing the high-voltage box body, the side edge portion is provided with a side hollow area, the protective member includes a side protective member, the side protective member covers at least part of the side hollow area, and is connected to the side edge portion through the detachable structure.

7. The battery device according to claim 6, characterized in that The side hollow area includes a first side hollow area and a second side hollow area, and the first side hollow area and the second side hollow area are arranged at intervals. The side guard includes a first side guard and a second side guard, and the first side guard covers at least a portion of the first side hollow area, and the second side guard covers at least a portion of the second side hollow area. The first side guard and the second side guard are both connected to the side edge portion through the detachable structure.

8. The battery device according to claim 7, characterized in that The first side protection member includes a first protection cover and a second protection cover connected by bending. The first side empty area includes a first area and a second area. The first protection cover covers at least a portion of the first area, and the second protection cover covers at least a portion of the second area.

9. The battery device according to claim 8, characterized in that The covering body is provided with a first front hollow area, the first front hollow area is connected to the second side hollow area, the second side protective member includes a third protective cover and a fourth protective cover that are bent and connected, the third protective cover covers at least part of the second side hollow area, the fourth protective cover covers at least part of the first front hollow area, and the fourth protective cover is connected to the covering body through the detachable structure.

10. The battery device according to any one of claims 1 to 4, characterized in that: The upper cover body includes an annular protrusion and a covering body, the covering body is used to cover the high-voltage box body, the annular protrusion is connected to the side of the covering body away from the high-voltage box body to form a second positive hollow area, the protective member includes a positive protective member, the positive protective member covers at least part of the second positive hollow area, and is connected to the annular protrusion through the detachable structure.

11. The battery device according to claim 10, characterized in that The number of the positive protective members is at least two, the at least two positive protective members are arranged at intervals, and the at least two positive protective members jointly cover at least a portion of the second positive hollow area.

12. The battery device according to claim 10, wherein: The side wall of the annular protrusion is provided with at least one pair of through holes, which pass through the opposite side surfaces of the side wall of the annular protrusion. The two through holes in the same pair are located on the two opposite side walls of the annular protrusion and are arranged relative to each other in the direction of the spacing between the two opposite side walls of the through holes.

13. The battery device according to claim 12, characterized in that The side wall of the annular protrusion is provided with a plurality of pairs of through holes, and the plurality of pairs of through holes are arranged at intervals along the extending direction of the side wall of the annular protrusion.

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

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