Battery device and electric appliance

Abstract

This application relates to a battery device and an electrical device, and pertains to the field of battery technology. The battery device is installed in the electrical device and supplies power to it. The battery device includes a battery cell pack and a housing. The battery cell pack includes multiple battery cells. The housing has a receiving cavity in which the battery cell pack is disposed; the housing includes a housing body and a mounting portion, the mounting portion including a first bracket and a second bracket, the first bracket being connected to the housing body, the second bracket being provided with a mounting connector, the second bracket being detachably connected to the first bracket, and the mounting connector being configured to connect to the electrical device; the mounting connector is cylindrical, and the first and second brackets are arranged along a first direction, which is perpendicular to the axial direction of the mounting connector. This application improves the structure of the mounting portion to enhance the battery device's adaptability to different electrical devices, while simultaneously optimizing the structural strength of the mounting portion.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and an electrical appliance. Background Technology

[0002] As a crucial functional component of electrical equipment, the battery unit is characterized by its high weight and large space occupation. The mounting section, as a key connecting component between the battery unit and the electrical equipment, directly affects the battery unit's structural adaptability to different electrical devices and the strength of the connection between the battery unit and the electrical equipment.

[0003] Therefore, it is necessary to provide a battery device and an electrical device that improves the ability of the battery device to adapt to different electrical devices by improving the structure of the mounting part, while optimizing the structural strength of the mounting part. Utility Model Content

[0004] Based on this, this application provides a battery device and an electrical device, which improves the ability of the battery device to adapt to different electrical devices by improving the structure of the mounting part.

[0005] In a first aspect, this application provides a battery device installed in and supplying power to an electrical device. The battery device includes a battery cell pack and a housing. The battery cell pack includes multiple battery cells. The housing has a receiving cavity in which the battery cell pack is disposed; the housing includes a housing body and a mounting portion, the mounting portion including a first bracket and a second bracket, the first bracket being connected to the housing body, the second bracket being provided with a mounting connector, the second bracket being detachably connected to the first bracket, and the mounting connector being configured to connect to the electrical device; the mounting connector is cylindrical, and the first and second brackets are arranged along a first direction perpendicular to the axial direction of the mounting connector.

[0006] In the technical solution provided in this application embodiment, the mounting part adopts a structure in which the first bracket and the second bracket are detachably connected. When the mounting part is partially damaged due to vibration, collision, or other working conditions, only the corresponding bracket needs to be disassembled and replaced, without the need for cutting or welding the main body of the housing. This significantly improves the convenience of maintenance and reduces maintenance costs. The segmented design of the bracket helps to reduce the size of a single bracket (such as the first or second bracket) and increase the structural strength of a single bracket. At the same time, it avoids the complex bending structure that must be set in a single integral bracket along a long force transmission path, eliminates stress concentration sources at the bending points, and effectively enhances the overall structural strength and fatigue resistance of the mounting part. This improves the connection reliability of the battery device under various working conditions of the electrical equipment, ensuring that the battery device meets the requirements of its entire life cycle. In addition, by replacing the first or second bracket of different specifications, the extension length and spatial orientation of the mounting part can be adjusted, allowing the same housing body to be adapted to different electrical equipment, thus improving the versatility of the battery device. By arranging the first and second brackets along a first direction perpendicular to the axis of the mounting connector, a certain distance is formed between the mounting connector and the housing body in a lateral direction perpendicular to the axis of the mounting connector. Thus, when the battery device is installed on electrical equipment, the lateral distance between the housing body and the mounting point of the electrical equipment can be flexibly adapted by adjusting the extension dimensions of the first and / or second brackets along the first direction. This allows the same housing body to be used with electrical equipment at different mounting point locations, improving the versatility and installation flexibility of the battery device.

[0007] In some embodiments, the second bracket includes a first sub-bracket and a second sub-bracket, a mounting connector is inserted through the second sub-bracket along its axial direction and fixedly connected to the second sub-bracket, the first sub-bracket is connected to the second sub-bracket and the first sub-bracket and the second sub-bracket are arranged along the axial direction of the mounting connector; the first sub-bracket is detachably connected to the first bracket.

[0008] In the technical solution provided in this application embodiment, by adjusting the axial dimensions of the first sub-bracket and / or the second sub-bracket, the longitudinal distance between the housing body and the mounting point of the electrical equipment can be flexibly adapted. When the same battery device needs to adapt to electrical equipment with different heights or different mounting point heights, only the first sub-bracket and / or the second sub-bracket with different axial dimensions need to be replaced to change the longitudinal extension length of the mounting part, without having to redesign the entire mounting part, thus reducing adaptation costs and improving versatility. Furthermore, the segmented arrangement of the first and second sub-brackets decouples the longitudinal distance adjustment between the first and second sub-brackets from the lateral distance adjustment between the first and second brackets, allowing them to be performed independently, further enhancing the adaptation flexibility of the mounting part in both the lateral and longitudinal dimensions.

[0009] In some embodiments, the second sub-bracket includes a connecting panel and a mounting wall. The connecting panel is perpendicular to the axis of the mounting connector, and the mounting wall is connected to the connecting panel and extends along the axis of the mounting connector. The mounting connector passes through the connecting panel along its axis and is fixed to the connecting panel. The mounting wall is connected to the first sub-bracket.

[0010] In the technical solution provided in this application embodiment, the connecting panel can provide a flat mating surface perpendicular to the axial direction of the mounting connector. When the mounting part is connected to the electrical equipment, the connecting component on the electrical equipment side can abut against and fit against the connecting panel, so that the fastening force is evenly distributed across the entire mating surface. This effectively reduces the torque attenuation of the fasteners caused by incomplete fit between the connecting component and the mounting part, ensuring a reliable fastening connection between the battery device and the electrical equipment over a long period. Furthermore, the mounting wall extends axially along the mounting connector, forming a reinforced support structure for the connecting panel. This increases the bending cross-section and deformation resistance of the second sub-bracket when bearing the mounting load, improving the overall stiffness and fatigue life of the connection area between the mounting connector and the second sub-bracket.

[0011] In some embodiments, the first sub-bracket and the second sub-bracket are detachably connected.

[0012] In the technical solution provided in this application embodiment, when it is necessary to adapt to the mounting height of different vehicle models, the first sub-bracket and / or the second sub-bracket with different axial dimensions can be flexibly replaced, and the longitudinal distance between the mounting connector and the box body can be adjusted independently, making the adjustment method more flexible and convenient; at the same time, when the second sub-bracket or the mounting connector on it is damaged, it can be disassembled and replaced separately without removing the first sub-bracket, thus taking into account both versatility and maintenance economy.

[0013] In some embodiments, the first bracket is welded to the housing body; or the first bracket is integrally formed with the housing body.

[0014] In the technical solution provided in this application embodiment, the first bracket is fixedly connected to the housing body by welding or integral molding, so that a rigid connection interface without gaps is formed between the first bracket and the housing body. On the one hand, this connection method eliminates intermediate fasteners such as bolts, simplifying the number of parts and assembly process of the mounting part; on the other hand, the welding or integral molding connection does not damage the sealing structure of the housing body, avoiding the risk of seal failure introduced by opening bolt holes, and ensuring the environmental reliability inside the battery device housing.

[0015] In some embodiments, the first bracket and the housing body have two or more common connection points.

[0016] In the technical solution provided in this application embodiment, two or more common connection parts are provided between the first bracket and the box body, so that the load is transmitted to the box body through multiple spaced fixed points, avoiding stress concentration at a single common connection part.

[0017] In some embodiments, the mounting part further includes a third bracket, the first bracket is connected to the third bracket, the third bracket is connected to the first side wall of the housing body, the first bracket is connected to the second side wall of the housing body, and the first side wall is adjacent to the second side wall.

[0018] In the technical solution provided in this application embodiment, the mounting part is connected to two adjacent side walls of the box body through a first bracket and a third bracket, respectively, forming a three-dimensional multi-point fixing structure. The mounting load can be distributed to the two different side walls of the box body, avoiding load concentration on a single side wall and improving the stress state of the box body. At the same time, the bidirectional connection between the adjacent first and second side walls increases the connection span between the mounting part and the box body, effectively improving the torsional stiffness and connection stability of the mounting part.

[0019] In some embodiments, a portion of the first bracket and a portion of the third bracket are stacked together, and the portion of the first bracket and the portion of the third bracket are fixedly connected by bolts.

[0020] In the technical solution provided in this application embodiment, the first bracket and the third bracket form a surface contact fit in the stacked area and are fixed by bolt clamping. The stacked structure increases the effective contact area between the two, and the load can be uniformly transferred through the surface contact, avoiding local stress concentration; the clamping force provided by the bolts creates a reliable frictional connection between the mating surfaces, significantly improving the connection strength and overall stability between the first bracket and the third bracket.

[0021] In some embodiments, a portion of the first support and a portion of the third support are respectively provided with mutually cooperating limiting structures.

[0022] In the technical solution provided in this application embodiment, the mutually cooperating limiting structures can play a pre-positioning role during assembly, ensuring that the first bracket and the third bracket are accurately aligned before locking, thereby improving assembly accuracy and consistency. The mating surface of the limiting structure can transmit shear loads, reducing the shear burden on the bolts and allowing them to bear only axial tension, thus reducing the risk of loosening; at the same time, it increases the effective contact area, improving the torsional stiffness and overall stiffness of the connection node.

[0023] In some embodiments, another portion of the first bracket is stacked with a portion of the second bracket, and the other portion of the first bracket and the portion of the second bracket are fixedly connected by bolts.

[0024] In the technical solution provided in this application embodiment, the first bracket and the second bracket are stacked and fixedly connected by bolts. The first bracket and the second bracket form a surface contact fit in the stacked area, which can achieve spatial orientation adaptation without excessive or complex bending processing of the bracket itself, avoiding stress concentration introduced by bending processing. As a result, the overall structural strength and stability of the mounting part are significantly higher than those of a single integral bracket with multiple bends.

[0025] In some embodiments, a portion of the first support and a portion of the second support are respectively provided with mutually cooperating limiting structures.

[0026] In the technical solution provided in this application embodiment, the mutually cooperating limiting structures can play a pre-positioning role during assembly, ensuring that the first bracket and the second bracket are accurately aligned before locking, thereby improving assembly accuracy and consistency. The mating surface of the limiting structure can transmit shear loads, reducing the shear burden on the bolts and allowing them to bear only axial tension, thus reducing the risk of loosening; at the same time, it increases the effective contact area, improving the torsional stiffness and overall stiffness of the connection node.

[0027] In some embodiments, another portion of the first bracket is fixedly connected to a portion of the second bracket by two or more bolts.

[0028] In the technical solution provided in this application embodiment, the first bracket and the second bracket are fixedly connected by two or more bolts. The multiple bolts are spaced apart, distributing the load to multiple fastening points, avoiding stress concentration, and improving the load-bearing capacity and fatigue life of the joint. The multiple bolts work together to increase the total amount and uniformity of the clamping force on the mating surface, improving the shear resistance, torsion resistance, and overall stiffness of the joint. Simultaneously, the multiple bolts form redundant fastening, so loosening at a single point does not affect the overall connection, improving failure safety and maintenance tolerance time. Furthermore, the multiple bolts form multi-point geometric constraints within the mating surface, directly restricting the relative rotational freedom of the first and second brackets, ensuring long-term stability of the angular position without the need for additional anti-rotation structures (e.g., limiting structures).

[0029] Secondly, this application provides a battery device that is installed in and supplies power to an electrical device. The battery device includes a battery cell pack and a housing. The battery cell pack includes multiple battery cells. The housing has a receiving cavity in which the battery cell pack is disposed; the housing includes a housing body and a mounting portion, the mounting portion including a first bracket and a second bracket, the first bracket being connected to the housing body, the second bracket being provided with a mounting connector, the second bracket being detachably connected to the first bracket, and the mounting connector being configured to connect to the electrical device; the mounting portion further includes a third bracket, the first bracket being connected to the third bracket, the third bracket being connected to a first side wall of the housing body, the first bracket being connected to a second side wall of the housing body, and the first side wall and the second side wall being adjacent to each other.

[0030] Thirdly, this application provides an electrical device, which includes a battery device as described above. The battery device serves as the power source for the electrical device and / or the energy storage unit of the electrical device. The battery device is connected to the electrical device via a mounting connector. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 These are schematic diagrams of the vehicle structure shown in some embodiments of this specification;

[0033] Figure 2 This is an exploded structural diagram of a battery device according to some embodiments of this specification; Figure 3 This is a structural schematic diagram of the housing shown in some embodiments of this specification from a first-view perspective; Figure 4 yes Figure 3 A schematic diagram of the first structure of the mounting section in area A of the middle box; Figure 5 yes Figure 3 A schematic diagram of the second structure of the mounting section in area A of the middle housing; Figure 6 yes Figure 3 A schematic diagram of the third structure of the mounting section in area A of the middle box; Figure 7 This is a structural schematic diagram of the housing shown in some embodiments of this specification from a second perspective; Figure 8 yes Figure 7 A schematic diagram of the first structure of the mounting section in area B of the middle box; Figure 9 yes Figure 7 A schematic diagram of the second structure of the mounting section in area B of the middle box; Figure 10 yes Figure 7 A schematic diagram of the third structure of the mounting section in area B of the middle box; Figure 11 This is a structural schematic diagram of the housing shown in some embodiments of this specification from a third-person perspective; Figure 12 yes Figure 11 A schematic diagram of the first structure of the mounting section in area C of the middle box; Figure 13 yes Figure 11 A schematic diagram of the second structure of the mounting section in area C of the middle box; Figure 14 yes Figure 11 A schematic diagram of the third structure of the mounting section in area C of the middle box; Figure 15 This is a structural schematic diagram of the housing shown in some embodiments of this specification from a fourth-view perspective; Figure 16 yes Figure 15 A schematic diagram of the first structure of the mounting section in area D of the middle box; Figure 17 yes Figure 15 A schematic diagram of the third structure of the mounting section in area D of the middle box; Figure 18 This is a structural schematic diagram of the first bracket shown according to some embodiments of this specification; Figure 19 This is a structural schematic diagram of the second support (or the first sub-support) according to some embodiments of this specification; Figure 20 This is a schematic diagram of the structure of the second sub-support shown in some embodiments of this specification; Figure 21 This is a structural schematic diagram of the third support shown in some embodiments of this specification.

[0034] The reference numerals in the detailed embodiments are as follows: 1. Vehicle; 10. Battery device; 30. Controller; 40. Motor; 100. Battery cell pack; 110. Battery cell; 20. Housing; 211. Upper housing; 212. Lower housing; 22. Receiving cavity; 23. Housing body; 231. First side wall; 232. Second side wall; 24. Mounting part; 241. First bracket; 242. Second bracket; 2421. First sub-bracket; 2422. Second sub-bracket; 243. Mounting connector; 244. Connecting panel; 245. Mounting wall; 246. Third bracket. Detailed Implementation

[0035] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0037] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, "multiple groups" means two or more, and "each" means each of the multiple, unless otherwise explicitly defined.

[0038] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] With the development of new energy technologies, batteries are being used more and more widely, not only in energy storage power systems such as hydropower, thermal power, wind power and solar power plants, but also in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in military equipment and aerospace and other fields.

[0042] To meet the demand for long battery life, multiple battery cells are typically connected in series, parallel, or a combination thereof to increase battery capacity or power. The installation or securing of multiple battery cells generally requires a casing. The casing includes the casing body and a mounting section. The mounting section has mounting connectors configured to connect to the electrical equipment. The mounting point on the electrical equipment is determined by the overall layout of the equipment. The casing body occupies a fixed amount of space, and the relative position between the two is constrained by the aforementioned fixed conditions. To ensure the battery pack is compatible with the assembly space of the electrical equipment, a significant gap may need to be maintained between the mounting connectors and the casing body to allow the connectors to extend outwards to connect to the mounting point on the equipment. Furthermore, the electrical equipment may contain various structural components, requiring a significant gap between the mounting connectors and the casing body to avoid obstructing these components. Therefore, a bracket is needed between the mounting connectors and the casing body to facilitate their connection. When the support frame is a single, integral unit, multiple bends need to be designed into it to meet spatial requirements. However, bending not only increases structural complexity but also creates stress concentration areas at the bends, weakening the overall strength of the mounting section. Furthermore, when a single integral support frame suffers partial damage, because it is a single structure and is usually welded to the enclosure, the entire support frame must be cut and separated from the enclosure before a new one is welded. This process is not only complex and time-consuming, but the cutting and secondary welding may also damage the enclosure itself, affecting its structural integrity and sealing performance, resulting in high repair costs.

[0043] To address the aforementioned issues, this application provides a battery device. The battery device is installed in an electrical appliance and supplies power to the appliance. The battery device includes a battery cell pack and a housing. The battery cell pack includes multiple battery cells. The housing has a receiving cavity in which the battery cell pack is disposed; the housing includes a housing body and a mounting portion, the mounting portion including a first bracket and a second bracket, the first bracket being connected to the housing body, the second bracket being provided with a mounting connector, the second bracket being detachably connected to the first bracket, and the mounting connector being configured to connect to the electrical appliance.

[0044] The mounting section of the battery housing provided in some embodiments of this specification adopts a structure in which the first bracket and the second bracket are detachably connected. Compared with the traditional single integral bracket, when the mounting section is partially damaged due to vibration, collision, or other operating conditions, only the corresponding bracket needs to be removed and replaced, without cutting or welding the main body of the housing. This significantly improves the convenience of maintenance and reduces maintenance costs. At the same time, the segmented design of the bracket (e.g., the bracket can be split into a first bracket and a second bracket) helps to reduce the size of a single bracket (e.g., the first bracket or the second bracket) and increase the structural strength of a single bracket. It also avoids the complex bending structure required for long-distance force transmission paths in single integral brackets, eliminating stress concentration sources at bends. This effectively enhances the overall structural strength and fatigue resistance of the mounting section, thereby improving the connection reliability of the battery device under various vehicle operating conditions and ensuring that the battery device meets the requirements of its entire life cycle. Furthermore, by replacing the first bracket or the second bracket with different specifications, the extension length and spatial orientation of the mounting section can be adjusted, allowing the same housing body to adapt to different vehicle models and improving the versatility of the battery device.

[0045] The battery device disclosed in this application can be installed in an electrical device and supply power to the device. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0046] For ease of explanation, the following embodiments will use vehicle 1 as an example of electrical equipment.

[0047] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of vehicle 1 according to some embodiments of this specification. Vehicle 1 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 10 is installed inside vehicle 1, and the battery device 10 can be located at the bottom, front, or rear of vehicle 1. The battery device 10 can be used to power vehicle 1; for example, the battery device 10 can serve as the operating power source for vehicle 1, or it can be used in the electrical system of vehicle 1, for example, to meet the power requirements for starting, navigation, and operation of vehicle 1.

[0048] The vehicle 1 may also include a controller 30 and a motor 40, wherein the controller 30 is used to control the battery device 10 to supply power to the motor 40.

[0049] In some embodiments of this application, the battery device 10 can not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0050] The battery device 10 of some embodiments of this application can be installed on an electrical device and supply power to the electrical device. The battery device 10 includes a battery cell pack 100 and a housing 20. The battery cell pack 100 includes a plurality of battery cells 110. The housing 20 has a receiving cavity 22 in which the battery cell pack 100 is disposed; the housing 20 includes a housing body 23 and a mounting portion 24, the mounting portion 24 includes a first bracket 241 and a second bracket 242, the first bracket 241 is connected to the housing body 23, the second bracket 242 is provided with a mounting connector 243, the second bracket 242 is detachably connected to the first bracket 241, and the mounting connector 243 is configured to connect to the electrical device.

[0051] Please refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device 10 according to some embodiments of this specification. The battery device 10 includes a housing 20 and a battery cell pack 100. The battery cell pack 100 includes a plurality of battery cells 110. The housing includes a receiving cavity 22 for receiving the battery cell pack 100. In some embodiments, the battery device may also be referred to as a battery pack.

[0052] In the battery device 10, there can be multiple battery cells 110, which can be connected in series, in parallel, or in a mixed manner. A mixed connection means that some of the multiple battery cells 110 are connected in series and others in parallel. The battery device 10 may also include other structures, such as a busbar for realizing the electrical connection between the multiple battery cells 110.

[0053] Each battery cell 110 can be a primary battery or a secondary battery. Each battery cell 110 can be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 110 can be cylindrical, flat, cuboid, or other shapes.

[0054] The housing 20 provides a receiving cavity 22 for the battery cell 110, and the housing 20 can adopt various structures. In some embodiments, the housing 20 may include an upper housing 211 and a lower housing 212, which cover each other and together define the receiving cavity 22 for accommodating the battery cell 110. In some embodiments, the housing 20 may include a lower housing 212 but not an upper housing 211, and the lower housing 212 is directly mounted on the body (such as an electrical device like a vehicle), defining the receiving cavity 22 for accommodating the battery cell 110.

[0055] The following is for reference. Figures 3 to 21 The structure of the housing in some embodiments of this application will be described in detail.

[0056] refer to Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 11 , Figure 12 , Figure 15 , Figure 16 , Figure 18 and Figure 19 It should be noted that, Figure 3 , Figure 7 , Figure 11 And Figure 15 The box 20 shown can be used alone, or as a lower box in conjunction with an upper box (not shown).

[0057] For example, such as Figure 4 , Figure 8 , Figure 12 and Figure 16 As shown, the mounting part 24 may include a first bracket 241 and a second bracket 242.

[0058] The housing body 23 refers to the main structural part of the housing 20 that forms the receiving cavity 22. The housing body 23 may include a bottom plate and an outer plate. The bottom plate is the bottom support structure of the housing 20, and the outer plate is disposed above the bottom plate and connected end to end to form the receiving cavity 22. In some embodiments, the housing body 23 may also include a lid that covers the upper opening of the outer plate.

[0059] Mounting section 24 refers to the connecting structure used to fix the housing 20 to the fuselage. The fuselage refers to the load-bearing body of electrical equipment (such as a vehicle) or the load-bearing structure within electrical equipment (such as a battery bracket or mounting beam in a vehicle). The fuselage provides the mounting base and mounting points for the housing 20. The housing 20 may include multiple mounting sections 24; for example, the housing 20 may include four mounting sections 24, or even eight mounting sections 24. It should be noted that... Figure 3 , Figure 7 , Figure 11 and Figure 15 Only one mounting section 24 is shown in the figure. In some embodiments, the connection between the mounting section 24 and the fuselage can be achieved in various ways, such as bolt connection, welding connection, riveting connection, snap-fit ​​connection or fitting connection, etc.

[0060] The first bracket 241 and the second bracket 242 refer to the components that make up the mounting part 24. For example, the first bracket 241 can be... Figure 18 The bracket shown, the second bracket 242 can be Figure 19The brackets shown are shown in the diagram. The first bracket 241 and the second bracket 242 can have various different specifications. The shape, size, and / or material of the first bracket 241 and the second bracket 242 can be the same or different. The materials of the first bracket 241 and the second bracket 242 can be carbon steel, stainless steel, copper alloy, aluminum alloy, etc.

[0061] The mounting connector 243 refers to the interface component installed on the second bracket 242 for direct connection with electrical equipment. The mounting connector 243 can be integrally formed with the second bracket 242, or it can be welded to the second bracket 242. Taking the connection between the mounting part 24 and the machine body using bolts as an example, during assembly, bolts are sequentially inserted into the through holes of the mounting points on the mounting connector 243 and the machine body, and then tightened with nuts, thereby achieving a fixed connection between the housing 20 and the machine body.

[0062] The second bracket 242 and the first bracket 241 can be detachably connected, meaning that the first bracket 241 and the second bracket 242 are connected by a non-permanent fixing method, so that the first bracket 241 and the second bracket 242 can be separated and reassembled without damaging themselves or adjacent structures.

[0063] The first bracket 241 and the box body 23 can be fixedly connected in various ways, such as adhesive connection, welding connection, riveting connection, snap-fit ​​connection, interlocking connection, integral molding, etc.

[0064] In the technical solution provided in this application embodiment, the mounting part 24 adopts a structure in which the first bracket 241 and the second bracket 242 are detachably connected. When the mounting part 24 is partially damaged due to vibration, collision, or other working conditions, only the corresponding bracket needs to be disassembled for replacement, without the need for cutting or welding the housing body 23, which significantly improves the convenience of maintenance and reduces maintenance costs. The segmented design of the bracket helps to reduce the size of a single bracket (such as the first bracket or the second bracket) and increase the structural strength of a single bracket. At the same time, it avoids the complex bending structure that must be set in a single integral bracket on a long force transmission path, eliminates stress concentration sources at the bending points, and effectively enhances the overall structural strength and fatigue resistance of the mounting part 24, thereby improving the connection reliability of the battery device 10 under various vehicle working conditions and ensuring that the battery device 10 meets the usage requirements of the entire life cycle. In addition, by replacing the first bracket 241 or the second bracket 242 of different specifications, the extension length and spatial orientation of the mounting part 24 can be adjusted, so that the same housing body 23 can be adapted to different vehicle models, improving the versatility of the battery device 10.

[0065] In some embodiments, such as Figure 4As shown, the mounting connector 243 is cylindrical. The first bracket 241 and the second bracket 242 are arranged along a first direction. The first direction is perpendicular to the axis of the mounting connector 243.

[0066] A cylindrical shape refers to a hollow tube extending along an axis. For example, a cylindrical shape can be a cylinder or a polygonal cylinder. The mounting connector 243 has a circumferential wall formed around the axis, which is cylindrical and defines an axially extending channel within the circumferential wall for fasteners (e.g., bolts) to pass through.

[0067] The axial direction of the mounting connector 243 refers to the direction of extension along the hollow channel of its cylindrical structure, such as the direction of the central axis of the mounting connector 243.

[0068] In the technical solution provided in this application embodiment, by arranging the first bracket 241 and the second bracket 242 along a first direction, and the first direction being perpendicular to the axial direction of the mounting connector 243, a certain distance is formed between the mounting connector 243 and the housing body 23 in a lateral direction perpendicular to the axial direction of the mounting connector 243. Thus, when the battery device 10 is installed on an electrical device, the lateral distance between the housing body 23 and the mounting point of the electrical device can be flexibly adapted by adjusting the extension dimensions of the first bracket 241 and / or the second bracket 242 along the first direction. This allows the same housing body 23 to be matched with electrical devices at different mounting point positions, improving the versatility and installation flexibility of the battery device 10.

[0069] In some embodiments, the first bracket 241 is welded to the housing body 23; or the first bracket 241 and the housing body 23 are integrally formed.

[0070] In the technical solution provided in this application embodiment, the first bracket 241 is fixedly connected to the housing body 23 by welding or integral molding, so that a rigid connection interface without gaps is formed between the first bracket 241 and the housing body 23. On the one hand, this connection method eliminates intermediate fasteners such as bolts, simplifying the number of parts and assembly process of the mounting part 24; on the other hand, the welding or integral molding connection does not damage the sealing structure of the housing body 23, avoiding the risk of sealing failure introduced by opening bolt holes, and ensuring the environmental reliability inside the battery device 10 housing.

[0071] In some embodiments, the first bracket 241 and the housing body 23 have two or more common connection points. For example, such as Figure 4 As shown, the first bracket 241 and the box body 23 may have three common connection parts.

[0072] A common connection refers to a local joint area that forms a fixed connection between the first support 241 and the housing body 23. For example, a common connection can be a welded joint area or a material transition area between the first support 241 and the housing body 23 when integrally formed. Multiple common connections are spatially spaced and together constitute a multi-point fixing interface between the first support 241 and the housing body 23.

[0073] In the technical solution provided in this application embodiment, two or more common connection parts are provided between the first bracket 241 and the housing body 23, so that the load is transferred to the housing body 23 through multiple spaced fixed points, avoiding stress concentration at a single common connection part. Taking the application scenario of the electrical equipment being a vehicle as an example, under the action of alternating loads such as vibration and impact generated by vehicle driving, multiple common connection parts work together to bear the load. Even if one common connection part suffers fatigue damage, the remaining common connection parts can still maintain the effective connection between the first bracket 241 and the housing body 23, significantly improving the structural reliability and failure safety of the mounting part 24.

[0074] In some embodiments, such as Figure 8 and Figure 12 As shown, a portion of the first bracket 241 and a portion of the second bracket 242 are stacked together, and the portion of the first bracket 241 and the portion of the second bracket 242 are fixedly connected by bolts.

[0075] The overlapping arrangement refers to the arrangement of a portion of the first bracket 241 and a portion of the second bracket 242 overlapping each other along a certain direction (such as the first direction), such that one surface of the first bracket 241 is in contact with or adjacent to another surface of the second bracket 242, forming an overlapping mating area. Bolts pass through this overlapping area to clamp and fix the two together.

[0076] Compared to single-piece integral supports that require multiple bends to accommodate spatial orientation, where residual stress and abrupt geometric changes at the bends create weak points, the technical solution provided in this application uses a stacked arrangement of the first support 241 and the second support 242, secured with bolts. The first support 241 and the second support 242 form a surface contact fit in the stacked area, achieving spatial orientation adaptation without requiring excessive or complex bending of the support itself. This avoids stress concentration introduced by bending, resulting in significantly higher overall structural strength and stability of the mounting portion 24 compared to a single-piece integral support with multiple bends.

[0077] In some embodiments, a portion of the first support 241 and a portion of the second support 242 are respectively provided with mutually cooperating limiting structures (not shown in the figure).

[0078] The mutually cooperating limiting structure refers to a first limiting feature disposed on a portion of the first bracket 241 and a second limiting feature disposed on a portion of the second bracket 242. These features are complementary in shape and interlock during assembly to limit the relative translation and / or rotation of the first bracket 241 and the second bracket 242 within their mating surfaces. For example, the mutually cooperating limiting structure may include at least one of the following: a locating protrusion and a locating groove; a stop and a stop; a toothed surface and a toothed surface meshing; a boss and a notch; a pin and a hole; or a key and a keyway.

[0079] In the technical solution provided in this application embodiment, the mutually cooperating limiting structures can play a pre-positioning role during assembly, ensuring that the first bracket 241 and the second bracket 242 are accurately aligned before locking, thereby improving assembly accuracy and consistency. The mating surface of the limiting structure can transmit shear loads, reducing the shear burden on the bolts and allowing them to bear only axial tension, thus reducing the risk of loosening; at the same time, it increases the effective contact area, improving the torsional stiffness and overall stiffness of the connection node. In some embodiments, when only a single bolt is used for fastening, the limiting structure can effectively prevent the first bracket and the second bracket from rotating relative to each other around the bolt axis, avoiding angular displacement of the mounted connectors and ensuring the stability of the connection angle under long-term vibration conditions.

[0080] In some embodiments, a portion of the first bracket 241 and a portion of the second bracket 242 are fixedly connected by two or more bolts. For example, as... Figure 16 As shown, a portion of the first bracket 241 and a portion of the second bracket 242 are fixedly connected by four bolts arranged in two rows and two columns.

[0081] In the technical solution provided in this application embodiment, the first bracket 241 and the second bracket 242 are fixedly connected by two or more bolts. The multiple bolts are spaced apart, distributing the load to multiple fastening points, avoiding stress concentration, and improving the load-bearing capacity and fatigue life of the joint. The multiple bolts work together to increase the total amount and uniformity of the clamping force on the mating surface, improving the shear resistance, torsion resistance, and overall stiffness of the joint. Simultaneously, the multiple bolts form redundant fastening, so loosening at a single point does not affect the overall connection, improving failure safety and maintenance tolerance time. Furthermore, the multiple bolts form multi-point geometric constraints within the mating surface, directly restricting the relative rotational freedom of the first and second brackets, ensuring long-term stability of the angular position without the need for additional anti-rotation structures (e.g., limiting structures).

[0082] refer to Figure 3 , Figure 5 , Figure 7 , Figure 9 , Figure 11 , Figure 13 , Figure 15 , Figure 17 , Figure 18, Figure 19 and Figure 20 .

[0083] In some embodiments, the second bracket 242 includes a first sub-bracket 2421 and a second sub-bracket 2422. A mounting connector 243 passes through the second sub-bracket 2422 along its axial direction and is fixedly connected to the second sub-bracket 2422. The first sub-bracket 2421 is connected to the second sub-bracket 2422, and the first sub-bracket 2421 and the second sub-bracket 2422 are arranged along the axial direction of the mounting connector 243. The first sub-bracket 2421 is detachably connected to the first bracket 241. For example, as... Figure 5 , Figure 9 , Figure 13 and Figure 17 As shown, the mounting part 24 may include a first bracket 241 and a second bracket 242, and the second bracket 242 includes a first sub-bracket 2421 and a second sub-bracket 2422.

[0084] The first sub-support 2421 and the second sub-support 2422 refer to the components that make up the second support 242. For example, the first sub-support 2421 can be... Figure 19 The bracket shown, the second sub-bracket 2422 can be Figure 20 The bracket shown. For example, the first sub-bracket 2421 can be... Figure 19 The bracket shown is the bracket with its top panel removed. The first sub-bracket 2421 and the second sub-bracket 2422 can have various different specifications. The shape, size, and / or material of the first sub-bracket 2421 and the second sub-bracket 2422 can be the same or different. The material of the first sub-bracket 2421 and the second sub-bracket 2422 can be carbon steel, stainless steel, copper alloy, aluminum alloy, etc.

[0085] For example, such as Figure 17 and Figure 19 As shown, the mounting connector 243 passes through the second sub-support 2422 and the first sub-support 2421 along its axial direction and is fixedly connected to both the second sub-support 2422 and the first sub-support 2421. The first sub-support 2421 is connected to the second sub-support 2422, and the first sub-support 2421 and the second sub-support 2422 are arranged along the axial direction of the mounting connector 243, with the second sub-support 2422 positioned above the first sub-support 2421. At this time, the top panel, rear panel, and two vertical side panels of the first sub-support 2421 form a frame structure, providing space for subsequent assembly operations (such as tightening bolts). For example, when the first sub-support 2421 is... Figure 19When the bracket shown has its top panel removed, the mounting connector 243 passes through the second sub-bracket 2422 along its axial direction and is fixedly connected to the second sub-bracket 2422. The first sub-bracket 2421 is connected to the second sub-bracket 2422, and the first sub-bracket 2421 and the second sub-bracket 2422 are arranged along the axial direction of the mounting connector 243, with the second sub-bracket 2422 positioned above the first sub-bracket 2421. At this time, the frame structure is formed by the top panel of the second sub-bracket 2422, the rear panel of the first sub-bracket 2421, and the two vertical side panels, which provides space for subsequent assembly operations.

[0086] Taking the connection between the mounting part 24 and the fuselage as an example, the bolts are sequentially inserted into the through holes of the mounting points on the mounting connector 243 and the fuselage during assembly, and the bolts are tightened with nuts to achieve a fixed connection between the housing 20 and the fuselage.

[0087] The detachable connection between the first sub-support 2421 and the first support 241 means that the first sub-support 2421 and the first support 241 are connected by a non-permanent fixing method, so that the first sub-support 2421 and the first support 241 can be separated and reassembled without damaging themselves or adjacent structures, thereby realizing the detachable connection between the second support 242 and the first support 241.

[0088] In the technical solution provided in this application embodiment, by adjusting the axial dimensions of the first sub-support 2421 and / or the second sub-support 2422, the longitudinal distance between the housing body 23 and the mounting point of the electrical equipment can be flexibly adapted. When the same battery device 10 needs to adapt to electrical equipment with different vehicle heights or different mounting point heights, only the first sub-support 2421 and / or the second sub-support 2422 with different axial dimensions need to be replaced to change the longitudinal extension length of the mounting part 24, without having to redesign the entire mounting part, thus reducing adaptation costs and improving versatility. Furthermore, the segmented arrangement of the first sub-support 2421 and the second sub-support 2422 decouples the longitudinal distance adjustment between the first sub-support 2421 and the second sub-support 2422 from the lateral distance adjustment between the first and second supports, allowing them to be performed independently, further enhancing the adaptation flexibility of the mounting part in both the lateral and longitudinal dimensions.

[0089] In some embodiments, such as Figure 17 and Figure 20 As shown, the second sub-bracket 2422 includes a connecting panel 244 and a mounting wall 245. The connecting panel 244 is perpendicular to the axis of the mounting connector 243. The mounting wall 245 is connected to the connecting panel 244 and extends along the axis of the mounting connector 243. The mounting connector 243 passes through the connecting panel 244 along its axis and is fixed to the connecting panel 244. The mounting wall 245 is connected to the first sub-bracket 2421.

[0090] In some embodiments, the connecting panel 244 can provide a flat mating surface perpendicular to the axial direction of the mounting connector 243. When the mounting part 24 is connected to the electrical equipment, the connecting component on the electrical equipment side can abut against and fit against the connecting panel 244, so that the fastening force is evenly distributed across the entire mating surface. This effectively reduces the torque attenuation of the fasteners caused by incomplete fit between the connecting component and the mounting part 24, ensuring a reliable fastening connection between the battery device 10 and the electrical equipment over a long period. Furthermore, the mounting wall 245 extends axially along the mounting connector 243, forming a reinforced support structure for the connecting panel 244. This increases the bending cross-section and deformation resistance of the second sub-support 2422 when bearing mounting loads, improving the overall stiffness and fatigue life of the connection area between the mounting connector 243 and the second sub-support 2422.

[0091] In some embodiments, the first sub-bracket 2421 and the second sub-bracket 2422 are detachably connected.

[0092] The detachable connection between the first sub-support 2421 and the second sub-support 2422 refers to a non-permanent connection between them, allowing them to be separated and reassembled without damaging themselves or adjacent structures. For example, the detachable connection methods may include threaded connections, snap-fit ​​connections, pin connections, key connections, etc. For instance, such as... Figure 19 A screw hole can be provided on the rear panel and both vertical side panels of the first sub-bracket 2421 shown, as follows: Figure 20 The mounting wall 245 of the second sub-bracket 2422 shown can be provided with a screw hole, so that the first sub-bracket 2421 and the second sub-bracket 2422 are arranged along the axial direction of the mounting connector 243. The second sub-bracket 2422 is set above the first sub-bracket 2421. The rear panel and the two side panels of the first sub-bracket 2421 are in contact with the mounting wall 245 of the second sub-bracket 2422. Bolts pass through three sets of corresponding screw holes to lock the two together, forming a reliable connection with multiple fixed surfaces, so as to realize the connection between the first sub-bracket 2421 and the second sub-bracket 2422.

[0093] In the technical solution provided in this application embodiment, when it is necessary to adapt to the mounting height of different vehicle models, the first sub-bracket 2421 and / or the second sub-bracket 2422 with different axial dimensions can be flexibly replaced, and the longitudinal distance between the mounting connector 243 and the box body 23 can be adjusted independently, making the adjustment method more flexible and convenient; at the same time, when the second sub-bracket 2422 or the mounting connector 243 on it is damaged, it can be disassembled and replaced separately without removing the first sub-bracket 2421, thus taking into account both versatility and maintenance economy.

[0094] refer to Figure 3, Figure 6 , Figure 7 , Figure 10 , Figure 11 , Figure 14 , Figure 15 , Figure 17 , Figure 18 , Figure 19 , Figure 20 and Figure 21 .

[0095] In some embodiments, the mounting portion 24 further includes a third bracket 246, with the first bracket 241 connected to the third bracket 246. The third bracket 246 is connected to the first side wall 231 of the housing body 23, and the first bracket 241 is connected to the second side wall 232 of the housing body 23, with the first side wall 231 and the second side wall 232 adjacent to each other. For example, as... Figure 6 , Figure 10 , Figure 14 and Figure 17 As shown, the mounting part 24 may include a first bracket 241, a second bracket 242 and a third bracket 246, and the second bracket 242 includes a first sub-bracket 2421 and a second sub-bracket 2422.

[0096] The third bracket 246 refers to the component that makes up the mounting part 24. For example, the third bracket 246 can be... Figure 21 The bracket shown is shown. The third bracket 246 can have various specifications. The shape, size, and / or material of the third bracket 246, the first bracket 241, and the second bracket 242 can be the same or different. The material of the third bracket 246 can be carbon steel, stainless steel, copper alloy, aluminum alloy, etc.

[0097] In some embodiments, the first bracket 241 is connected to the third bracket 246, the third bracket 246 is connected to the first side wall 231 of the housing body 23, and the first bracket 241 is connected to the second side wall 232 of the housing body 23. The first side wall 231 and the second side wall 232 can be two adjacent side walls in the outer frame of the housing. The connection between the first side wall 231 and the second side wall 232 can be achieved in various ways, such as adhesive connection, welding connection, riveting connection, snap-fit ​​connection, fitting connection, integral molding, etc.

[0098] In the technical solution provided in this application embodiment, the mounting part 24 is connected to two adjacent side walls of the box body 23 via the first bracket 241 and the third bracket 246, respectively, forming a three-dimensional multi-point fixing structure. The mounting load can be distributed to the two different side walls of the box body 23, avoiding load concentration on a single side wall and improving the stress state of the box body 23. At the same time, the bidirectional connection between the adjacent first side wall 231 and the second side wall 232 increases the connection span between the mounting part 24 and the box body 23, effectively improving the torsional stiffness and connection stability of the mounting part 24.

[0099] In some embodiments, such as Figure 6 As shown, a portion of the first support 241 and a portion of the third support 246 are stacked together, and the portion of the first support 241 and the portion of the third support 246 are fixedly connected by bolts. It should be understood that the portion of the first support 241 that is stacked with the third support 246 is different from the portion of the first support 241 that is stacked with the second support 242.

[0100] In the technical solution provided in this application embodiment, the first bracket 241 and the third bracket 246 form a surface contact fit in the stacked area and are fixed by bolt clamping. The stacked structure increases the effective contact area between the two, and the load can be uniformly transferred through the surface contact, avoiding local stress concentration; the clamping force provided by the bolts creates a reliable frictional connection between the mating surfaces, which significantly improves the connection strength and overall stability between the first bracket 241 and the third bracket 246.

[0101] In some embodiments, a portion of the first support 241 and a portion of the third support 246 are respectively provided with mutually cooperating limiting structures. For more information on the limiting structures, please refer to the above and its related descriptions.

[0102] In some embodiments, a portion of the first bracket 241 and a portion of the third bracket 246 are fixedly connected by two or more bolts. Further details regarding fixed connections using two or more bolts can be found above and in the related description.

[0103] According to an embodiment of this application, a battery device 10 is provided. The battery device 10 is installed in an electrical device and supplies power to the device. The battery device 10 includes a battery cell pack 100 and a housing 20. The battery cell pack 100 includes a plurality of battery cells 110. The housing 20 has a receiving cavity 22 in which the battery cell pack 100 is disposed; the housing 20 includes a housing body 23 and a mounting portion 24, the mounting portion 24 including a first bracket 241 and a second bracket 242, the first bracket 241 being connected to the housing body 23, the second bracket 242 being provided with a mounting connector 243, the second bracket 242 being detachably connected to the first bracket 241, and the mounting connector 243 being configured to connect to the electrical device. The mounting connector 243 is cylindrical. The first bracket 241 and the second bracket 242 are arranged along a first direction. The first direction is perpendicular to the axial direction of the mounting connector 243. The second bracket 242 includes a first sub-bracket 2421 and a second sub-bracket 2422. A mounting connector 243 passes through the second sub-bracket 2422 along its axial direction and is fixedly connected to it. The first sub-bracket 2421 is connected to the second sub-bracket 2422, and the first sub-bracket 2421 and the second sub-bracket 2422 are arranged along the axial direction of the mounting connector 243. The mounting part 24 also includes a third bracket 246. The first bracket 241 is connected to the third bracket 246. The third bracket 246 is connected to the first side wall 231 of the housing body 23, and the first bracket 241 is connected to the second side wall 232 of the housing body 23. The first side wall 231 and the second side wall 232 are adjacent to each other. A portion of the first bracket 241 and a portion of the third bracket 246 are stacked and fixedly connected by bolts. Another part of the first bracket 241 is stacked with a part of the second bracket 242, and the other part of the first bracket 241 and the part of the second bracket 242 are fixedly connected by bolts.

[0104] Taking the connection between the mounting part 24 and the fuselage as an example, the bolts are sequentially inserted into the through holes of the mounting points on the mounting connector 243 and the fuselage during assembly, and the bolts are tightened with nuts to achieve a fixed connection between the housing 20 and the fuselage.

[0105] This application also provides an electrical device, which includes a battery device 10 as described above, the battery device 10 serving as a power source for the electrical device and / or an energy storage unit for the electrical device.

[0106] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) The mounting part adopts a detachable connection between the first bracket and the second bracket. When there is local damage, the corresponding bracket can be replaced separately without cutting or welding the box body. The maintenance is convenient and the cost is low. At the same time, this structure avoids the complex bending of a single integral bracket, eliminates stress concentration at the bending point, and enhances the structural strength and fatigue resistance of the mounting part. In addition, the extension length and spatial orientation can be adjusted by replacing the brackets of different specifications to adapt to different vehicle models and improve versatility. (2) By replacing the first sub-bracket and / or the second sub-bracket with different axial dimensions, the longitudinal distance between the mounting part and the electrical equipment can be flexibly adjusted to adapt to different vehicle heights without redesigning the entire mounting part. (3) The mounting part is connected to the two adjacent side walls of the box body through the first bracket and the third bracket respectively. The mounting load is distributed to the two side walls, avoiding stress concentration on one side wall. In addition, the bidirectional connection of the two adjacent side walls increases the connection span and effectively improves the torsional stiffness and connection stability of the mounting part. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects may be any one or a combination of the above, or any other possible beneficial effects.

[0107] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, installed in an electrical appliance and supplying power to the electrical appliance, characterized in that, include: A battery cell pack consists of multiple battery cells; The housing has a receiving cavity, in which the battery cell pack is disposed; The enclosure includes a main body and a mounting section. The mounting section includes a first bracket and a second bracket. The first bracket is connected to the main body, and the second bracket is provided with a mounting connector. The second bracket is detachably connected to the first bracket, and the mounting connector is configured to connect to the electrical equipment. The mounting connector is cylindrical, and the first bracket and the second bracket are arranged along a first direction, which is perpendicular to the axial direction of the mounting connector.

2. The battery device according to claim 1, characterized in that, The second bracket includes a first sub-bracket and a second sub-bracket. The mounting connector passes through the second sub-bracket along its axial direction and is fixedly connected to the second sub-bracket. The first sub-bracket is connected to the second sub-bracket, and the first sub-bracket and the second sub-bracket are arranged along the axial direction of the mounting connector. The first sub-bracket is detachably connected to the first bracket.

3. The battery device according to claim 2, characterized in that, The second sub-bracket includes a connecting panel and a mounting wall. The connecting panel is perpendicular to the axis of the mounting connector, and the mounting wall is connected to the connecting panel and extends along the axis of the mounting connector. The mounting connector is inserted along its axial direction and fixed to the connecting panel, and the mounting wall is connected to the first sub-bracket.

4. The battery device according to claim 2, characterized in that, The first sub-bracket and the second sub-bracket are detachably connected.

5. The battery device according to claim 1, characterized in that, The first bracket is welded to the box body; or the first bracket is integrally formed with the box body.

6. The battery device according to claim 1, characterized in that, The first bracket and the box body have two or more common connection parts.

7. The battery device according to claim 1, characterized in that, The mounting part further includes a third bracket, the first bracket is connected to the third bracket, the third bracket is connected to the first side wall of the box body, the first bracket is connected to the second side wall of the box body, and the first side wall is adjacent to the second side wall.

8. The battery device according to claim 7, characterized in that, A portion of the first bracket and a portion of the third bracket are stacked together, and the portion of the first bracket and the portion of the third bracket are fixedly connected by bolts.

9. The battery device according to claim 8, characterized in that, The first support and the third support are respectively provided with mutually cooperating limiting structures in their respective regions.

10. The battery device according to claim 1 or 7, characterized in that, Another portion of the first bracket is stacked on top of a portion of the second bracket, and the other portion of the first bracket and the portion of the second bracket are fixedly connected by bolts.

11. The battery device according to claim 10, characterized in that, The other part of the first bracket and the other part of the second bracket are respectively provided with mutually cooperating limiting structures.

12. The battery device according to claim 10, characterized in that, The other portion of the first bracket is fixedly connected to the other portion of the second bracket by two or more bolts.

13. A battery device, installed in an electrical appliance and supplying power to the electrical appliance, characterized in that, include: A battery cell pack consists of multiple battery cells; The housing has a receiving cavity, in which the battery cell pack is disposed; The enclosure includes a main body and a mounting section. The mounting section includes a first bracket and a second bracket. The first bracket is connected to the main body, and the second bracket is provided with a mounting connector. The second bracket is detachably connected to the first bracket, and the mounting connector is configured to connect to the electrical equipment. The mounting section also includes a third bracket. The first bracket is connected to the third bracket, and the third bracket is connected to a first side wall of the main body. The first bracket is connected to a second side wall of the main body, and the first side wall is adjacent to the second side wall.

14. The battery device according to claim 13, characterized in that, A portion of the first bracket and a portion of the third bracket are stacked together, and the portion of the first bracket and the portion of the third bracket are fixedly connected by bolts.

15. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1 to 14, wherein the battery device serves as a power source for the electrical device and / or an energy storage unit for the electrical device; The battery device is connected to the electrical equipment via the mounting connector.

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