Battery device and electric device

Abstract

The invention is suitable for the technical field of battery main bodies, and provides a battery device and a power utilization device. The battery device comprises a battery main body and a connecting bracket; the battery main body is provided with a plurality of mounting positions, and at least one mounting position is provided with a plurality of mounting holes; the connecting bracket is arranged at the mounting position; the connecting support comprises a first connecting assembly and a second connecting assembly which are connected with each other, and the second connecting assembly is used for being connected with the body support. The at least one connecting bracket is provided with a plurality of first connecting assemblies, and the plurality of first connecting assemblies are connected with the plurality of mounting holes of the same mounting position in the battery main body; the connecting support further comprises a buffering piece, at least part of the buffering piece is connected between the multiple first connecting assemblies, at least part of the buffering piece is connected between the second connecting assemblies and the first connecting assemblies, and the buffering piece at least can absorb at least part of loads in the height direction and the first direction. According to the battery device and the power utilization device provided by the invention, the manufacturing cost can be reduced.

Description

Technical Field

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

[0002] The battery device mounting system needs to meet certain stability requirements. However, the connection brackets used in the current mounting system have simple structures. To meet the mounting stability requirements, more connection brackets need to be used, resulting in a large number of parts required for the vehicle and high costs. Summary of the invention

[0003] In view of the above problems, the present application provides a battery device and an electrical device, aiming to reduce costs.

[0004] In the first aspect, an embodiment of the present application provides a battery device for connecting to a main body bracket of an electrical device, the battery device comprising a battery body and a connecting bracket; the battery body is provided with a plurality of mounting positions, at least one mounting position is provided with a plurality of mounting holes; the connecting bracket is provided at the mounting position, for connecting the battery body and the main body bracket; the connecting bracket comprises a first connecting component and a second connecting component connected to each other, the second connecting component being used to connect to the main body bracket; at least one connecting bracket has a plurality of first connecting components, and the plurality of first connecting components are connected to a plurality of mounting holes of the same mounting position in the battery body.

[0005] In the related art, generally only one first connecting component is provided in the same connecting bracket, that is, only one first connecting component is provided in the same mounting position of the battery body, while in the battery device provided in the embodiment of the present application, at least one connecting bracket has multiple first connecting components, and the multiple first connecting components are connected to multiple mounting holes in the same mounting position in the battery body. Compared with the related art, the same connecting bracket can have multiple connection points with the battery body, which can improve the connection stability between the single connecting bracket and the battery device to a certain extent. The same connecting bracket can have multiple connection points with the battery body, and fewer connecting brackets can be used to make the mounting connection between the battery device and the main bracket of the electrical device stable, which can reduce the number of components required for the battery device and the electrical device, and can reduce the manufacturing cost to a certain extent.

[0006] In some possible implementations, the connecting bracket also includes a buffer; in the same connecting bracket, multiple first connecting components are spaced apart along the first direction, at least a portion of the second connecting component is spaced apart from the first connecting component, and can at least move relative to the first connecting component in the height direction of the first connecting component, at least a portion of the buffer is connected between the multiple first connecting components, and at least a portion of the buffer is connected between the second connecting component and the first connecting component, the buffer can at least absorb at least a portion of the load in the height direction and the first direction, and the height direction is set at an angle to the first direction.

[0007] In the battery device provided by this embodiment, a plurality of first connection components are provided, and the plurality of first connection components are connected through at least a portion of the buffer, and at least a portion of the second connection portion is connected to the first connection component through at least a portion of the buffer, and the buffer in the connection bracket can absorb vibration loads in multiple directions, thereby reducing the risk of collision between the battery device and the main bracket. In this way, the battery device can use fewer connection brackets, which can meet the shock absorption requirements of the battery device mounting, and can reduce the manufacturing cost to a certain extent.

[0008] In some possible implementations, the first connecting component includes a main body and a first fastener. The main body is located on one side of the battery body close to the main body bracket. The main body is provided with a through hole. The through hole passes through two sides of the main body that are arranged opposite to each other in the height direction. A portion of the first fastener is passed through the through hole and connects the battery body and the main body. The buffer is arranged around at least part of the outer peripheral wall of the main body.

[0009] The first connecting component adopts the solution provided in this embodiment, including a main body and a first fastener. The main body and the battery body are connected by the first fastener, and the buffer component surrounds at least part of the outer wall of the main body. This can make the structure of the first connecting component simple, easy to install and disassemble, and easy to install the buffer component.

[0010] In some possible implementations, a circumferential wall of the main body is provided with a receiving groove, and at least a portion of the buffer member is disposed in the receiving groove.

[0011] The provision of the accommodating groove can, on the one hand, reduce the volume of the combined structure of the buffer and the first connecting component, and on the other hand, limit the relative position of at least part of the buffer and the first connecting component, thereby stabilizing the structure of the connecting bracket.

[0012] In some possible implementations, the main body includes a supporting portion and a first side portion, the supporting portion is provided with a through hole, the first side portion is connected to the outer peripheral wall of the supporting portion, the first side portions are provided with two groups, the two groups of first side portions are spaced apart along the height direction, and the two groups of first side portions and the outer peripheral wall of the main body form a receiving groove.

[0013] The main body adopts the solution provided in this embodiment, which can make the main body structure simple, stable and easy to prepare.

[0014] In some possible implementations, the two groups of first side portions are disposed at two ends of the support portion in a height direction.

[0015] In this way, the volume of the accommodating groove can be larger, and more parts of the buffer component can be accommodated, so that the connection structure between the buffer component and the first connecting component is stable.

[0016] In some possible implementations, the main body is an integrally formed part.

[0017] The main body is an integrally formed part, which has a stable structure and is easy to prepare.

[0018] In some possible implementations, at least a portion of the second connecting component is embedded in the buffer.

[0019] At least a portion of the second connecting component is embedded in the buffer component, so that the connection between the second connecting component and the buffer component can be stable.

[0020] In some possible implementations, the second connecting component includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the buffer component, and the first connecting portion is arranged around at least a portion of the outer peripheral wall of the buffer component, and the second connecting portion connects the first connecting portion and the main support.

[0021] The second connecting component adopts the solution provided in this embodiment, which can make the structure of the second connecting component simple and the connection between the second connecting component and the first connecting component stable.

[0022] In some possible implementations, the first connecting portion and the first connecting component are connected.

[0023] The first connecting portion is connected to the first connecting assembly, so that the structure of the connecting bracket can be stable.

[0024] In some possible implementations, the first connecting portion and the first connecting assembly form a receiving cavity having at least one opening, and at least a portion of the buffer component is disposed in the receiving cavity.

[0025] The first connection portion and the first connection assembly form a receiving cavity, in which at least part of the buffer is covered, so that the connection area between the first connection portion and the first connection assembly is larger, and the contact area between the first connection portion and the buffer is larger, which helps to improve the structural stability of the connection bracket and reduce the risk of the connection bracket being crushed during use. The crush risk refers to the critical state of plastic deformation or structural failure of the component under axial / radial load.

[0026] In some possible implementations, the first connecting portion includes a surrounding portion and a second side portion, the surrounding portion is arranged to surround at least a portion of the first connecting component and is spaced apart from the first connecting component, the second side portion is located on a side of the surrounding portion close to the buffer component and connects the bottom of the surrounding portion and the first connecting component, and the outer peripheral wall of the second side portion, the surrounding portion and the first connecting component form a accommodating cavity.

[0027] The first connecting portion adopts the structure provided in this embodiment, which has a simple structure and can make the accommodating cavity larger, so that more buffer members can be arranged in the accommodating cavity, which helps to improve the stability of the connecting bracket structure.

[0028] In some possible implementations, a dimension of the surrounding portion in the height direction is greater than or equal to 1 / 2 of a dimension of the first connecting component in the height direction.

[0029] In this way, the accommodating cavity can be made larger, so that more buffer members can be arranged in the accommodating cavity, which helps to improve the stability of the connecting bracket structure.

[0030] In some possible implementations, the second side portion is connected to the bottom of the first connecting component.

[0031] In this way, except for the portion connected to the second edge portion, the outer peripheral wall of the other portions of the first connecting component can be used as the inner wall of the accommodating cavity, which can make the accommodating cavity larger and help improve the stability of the connecting bracket structure.

[0032] In some possible implementations, the second side portion connects multiple first connection components.

[0033] The second edge is connected to a plurality of first connection components, which can reduce the risk of the portion where the buffer is located being crushed, and can further reduce the risk of the connection bracket being crushed during use.

[0034] In some possible implementations, the first connecting portion also includes a third side portion, which is located on the side of the surrounding portion away from the buffer and is connected to the surrounding portion, and the third side portion and the surrounding portion form a corner structure, and a portion of the second connecting portion is arranged in the space enclosed by the corner structure and is connected to both the third side portion and the surrounding portion.

[0035] The provision of the third side portion can increase the connection area between the second connection portion and the first connection portion, thereby making the structure of the second connection component stable.

[0036] In some possible implementations, the second connecting portion includes a straight portion and a bent portion, the bent portion is connected to the first connecting portion, the straight portion is connected to the bent portion, and the straight portion is used to fit and connect with the main support.

[0037] Since the portion of the main bracket that contacts the second connecting portion is generally a plane, the second connecting portion includes a straight portion and a bent portion, and the straight portion is attached to and connected to the main bracket. This facilitates stable connection between the second connecting portion and the main bracket, and allows the position of the straight portion to be set according to installation needs, which helps to adapt to different usage environments.

[0038] In some possible implementations, the second connecting assembly further includes a second fastener, and the second fastener is used to connect the second connecting portion and the main support.

[0039] The second connecting portion is connected to the main body bracket through a second fastener, which facilitates the connection and disassembly of the connecting bracket and the main body bracket and facilitates the replacement of the connecting bracket.

[0040] In some possible implementations, a plurality of second connection portions are provided, and the plurality of second connection portions are spaced apart along the outer peripheral wall of the first connection portion.

[0041] By adopting the solution provided in this embodiment, multiple connection points can be provided between the second connection component and the main support, so that the connection between the connection support and the main support is stable, and the mounting stability of the battery device can be better.

[0042] In some possible implementations, two second connection parts are provided, and the two second connection parts are provided on both sides of the first connection part along the first direction.

[0043] By adopting the solution provided in this embodiment, the structure of the second connecting component can be simplified, and there are multiple connection points between the second connecting component and the main bracket, so that the connection between the connecting bracket and the main bracket is stable, and the mounting stability of the battery device can be better.

[0044] In some possible implementations, the first connection portion and the second connection portion are integrally formed.

[0045] The first connecting portion and the second connecting portion are integrally formed, which is easy to prepare and has a stable structure.

[0046] In some possible implementations, the second connecting assembly further includes a third connecting portion, the third connecting portion is connected to the second connecting portion, and the third connecting portion is used to connect to the main support.

[0047] The third connection part is suitable for a case where the distance between the main support and the battery body is large, and the connection between the main support and the combined structure of the first connection assembly and the buffer cannot be achieved through the first connection part and the second connection part.

[0048] In some possible implementations, the buffer component is integrally connected to the first connecting component and the second connecting component by injection molding.

[0049] By adopting the solution provided in this embodiment, the buffer component can be tightly connected to the first connecting component and the second connecting component, so that the structure of the connecting bracket is stable.

[0050] In some possible implementations, at least a portion of the buffer is an elastic portion.

[0051] By adopting the solution provided in this embodiment, at least a portion of the buffer can be made elastic, and the damping characteristics of the elastic part can absorb high-frequency vibrations to which the electrical device is subjected during use, such as high-frequency vibrations (50-1000Hz) generated by the motor / road surface, thereby reducing the vibration energy transmitted to the battery device by more than 60%, and reducing the risk of micro-damage to the internal structure of the battery device; by adjusting the stiffness of the elastic part (usually designed to be in the range of 20-50N / mm), the natural frequency of the battery device system is made to avoid the main excitation frequency of the main part of the electrical device (such as the motor fundamental frequency of 20-200Hz), thereby preventing fatigue fracture caused by resonance.

[0052] In some possible implementations, the buffer component is an integrally formed component.

[0053] The buffer component is an integrally formed component, which can make the buffer component structure stable and easy to prepare.

[0054] In some possible implementations, the buffer member is a rubber member.

[0055] The buffer is made of rubber, which can make the buffer have excellent shock absorption and cushioning performance, can adapt to complex environments, and has low production costs. It can be made into complex shapes through molding, extrusion and other processes. The density is lower than that of metal, and it is suitable for weight-sensitive applications.

[0056] In some possible implementations, the first direction is perpendicular to the height direction.

[0057] This makes it easier to design and process.

[0058] In a second aspect, an embodiment of the present application provides an electrical device, including a main frame and a battery device provided by any of the above schemes, wherein the connecting frame is connected to the main frame.

[0059] The effect of the second aspect is the same as that of the first aspect and will not be described in detail here.

[0060] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings: Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application; Figure 2 A schematic diagram of the exploded structure of a battery device provided in some embodiments of the present application; Figure 3 A schematic diagram of a three-dimensional structure of a partial structure of an electric device provided in some embodiments of the present application; Figure 4 A schematic diagram of a three-dimensional structure of a connecting bracket in a battery device provided in some embodiments of the present application; Figure 5 for Figure 4 A side structural schematic diagram of the connecting bracket shown; Figure 6 For along Figure 5 Schematic diagram of the cross-sectional structure along the AA line; Figure 7 A schematic diagram of a three-dimensional structure of a connecting bracket in a battery device provided in some other embodiments of the present application; Figure 8 for Figure 7 A side structural schematic diagram of the connecting bracket shown; Fig. 9 For along Figure 8 Schematic diagram of the cross-sectional structure along the middle BB line; Fig.10 A schematic diagram of a three-dimensional structure of a connecting bracket in a battery device provided in some other embodiments of the present application; Fig.11 for Fig.10 A side structural schematic diagram of the connecting bracket shown; Fig.12 For along Fig.11 Schematic diagram of the cross-sectional structure of the CC line; Fig.13 Schematic diagram of the three-dimensional structure of the connecting bracket in the battery device provided in other embodiments of the present application.

[0062] The reference numerals in the specific implementation manner are as follows: 1000. Vehicles; 100, battery device; 100a, battery body; 100b, mounting position; 200, controller; 300, motor; 400, main body bracket; 500, connecting bracket; 10. Box body; 11. Cover body; 12. Tray; 20. Battery cell; 51. First connecting component; 52. Second connecting component; 53. Buffer; 511, main body; 511a, through hole; 512, first fastener; 513, receiving groove; 521, first connecting portion; 522, second connecting portion; 523, second fastener; 524, third connecting portion; 5111, supporting portion; 5112, first side portion; 5211, surrounding portion; 5212, second side portion; 5213, third side portion; 5221, straight portion; 5222, bending portion; X, first direction; Y, second direction; Z, height direction. DETAILED DESCRIPTION

[0063] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0065] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0066] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0067] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0068] 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).

[0069] 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0070] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0071] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0072] With the rapid development of new energy equipment such as electric vehicles and hybrid vehicles, the safety, reliability and performance requirements of battery devices, as an important part of new energy equipment, have been significantly improved. For example, modern vehicles are increasingly integrating technologies such as intelligent driving and vehicle networking, which have put forward higher requirements on the accuracy and reliability of vehicle control systems; in order to improve energy efficiency and driving range, vehicle design tends to be lightweight, which puts higher requirements on the strength and durability of industrial control systems. As the requirements for vehicle industrial control become increasingly stringent, the battery device mounting system needs to meet higher performance standards (such as longer life, higher safety, and better stability), so that the system must be able to cope with a wider range of and more extreme working conditions, that is, to meet the above standards under more uncertain environments or factors. In order to meet these requirements, the system must improve its adaptability to cope with the challenges brought by uncertainty. The structure of the connection bracket used in the current mounting system is simple. To meet the mounting stability, more connection brackets need to be used, resulting in a large number of parts required for the vehicle and high cost.

[0073] In order to at least partially improve the above problems, an embodiment of the present application provides a battery device. In the battery device, at least one connecting bracket has multiple first connecting components, and the multiple first connecting components are connected to multiple mounting holes of the same mounting position in the battery body. Compared with the related art, the same connecting bracket can have multiple connection points with the battery body, which can improve the connection stability between a single connecting bracket and the battery device to a certain extent, so that the battery device can use fewer connecting brackets to meet the mounting needs of the battery device, and can reduce the number of parts required for the battery device and the electrical device using the battery device to a certain extent, thereby reducing the manufacturing cost.

[0074] The electric device disclosed in the embodiments of the present application may be, but is not limited to, electric toys, electric tools, battery vehicles, electric cars, ships, spacecraft, etc. Among them, the electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and the spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0075] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0076] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device (Battery Apparatus) is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000. For example, the battery device 100 may serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to power the motor 300, for example, for the working power requirements of the vehicle 1000 during startup, navigation and driving.

[0077] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0078] Please refer to Figure 2 , Figure 2 The schematic diagram of the exploded structure of the battery device 100 provided in some embodiments of the present application. The battery device 100 includes a box body 10 and a battery cell 20 , wherein the battery cell 20 is accommodated in the box body 10 .

[0079] The box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a cover 11 and a tray 12. The cover 11 is covered on the tray, and together with the tray 12, defines a storage space for accommodating the battery cell 20. The tray 12 may be a hollow structure with one end open, and the cover 11 may be a plate-like structure. The cover 11 covers the open side of the tray 12, so that the cover 11 and the tray 12 together define a storage space; the cover 11 and the tray 12 may also be hollow structures with side openings, and the open side of the cover 11 covers the open side of the tray 12. Of course, the box 10 formed by the cover 11 and the tray 12 may be in a variety of shapes, such as a circular through-portion, a rectangular parallelepiped, etc. The above-mentioned tray 12 is an important structural bearing member in the battery main body system, which is used to store and protect the battery cells, and has an important impact on the collision safety of the whole vehicle and the torsion and bending stiffness of the whole vehicle body.

[0080] There may be multiple battery cells 20, and the multiple battery cells 20 are connected in series, in parallel or in mixed connection through a busbar. Mixed connection means that multiple battery cells 20 are both connected in series and in parallel. Multiple battery cells 20 can be directly connected in series, in parallel or in mixed connection, and then the whole formed by multiple battery cells 20 is accommodated in the box 10; of course, the battery device 100 can also be a battery main body module in which multiple battery cells 20 are first connected in series, in parallel or in mixed connection, and multiple battery main body modules are then connected in series, in parallel or in mixed connection to form a whole, and accommodated in the box 10. The battery device 100 may also include other structures. For example, the battery device 100 may also include a busbar for realizing electrical connection between multiple battery cells 20. As an example, multiple battery cells 20 may form a battery main body module (Battery Module), and the battery main body module is formed by arranging and fixing multiple battery cells 20 to form an independent module. As an example, the battery main body module may be formed by bundling multiple battery cells 20 with a cable tie.

[0081] Each battery cell 20 may be a secondary battery body or a primary battery body. A secondary battery body refers to a battery cell that can be used continuously by activating the active material by charging after the battery cell 20 is discharged. The battery cell 20 may be a lithium ion battery body, a sodium ion battery body, a sodium lithium ion battery body, a lithium metal battery body, a sodium metal battery body, a lithium sulfur battery body, a magnesium ion battery body, a nickel hydrogen battery body, a nickel cadmium battery body, a lead storage battery body, etc., and the present application embodiment does not limit this. The battery cell may be in the form of a round through-portion, a flat body, a rectangular parallelepiped, or other shapes.

[0082] Please refer to Figure 3 , Figure 3The present invention provides a battery device 100 for connecting with a main support 400 of the electric device. The battery device 100 includes a battery body 100a and a connecting support 500.

[0083] The battery body 100a is provided with a plurality of mounting positions 100b. At least one mounting position 100b is provided with a plurality of mounting holes.

[0084] The connecting bracket 500 is disposed at the mounting position 100 b and is used to connect the battery body 100 a and the main body bracket 400 .

[0085] Figure 4 A schematic diagram of a three-dimensional structure of a connecting bracket in a battery device provided in some embodiments of the present application, such as Figure 4 As shown, at least one connecting bracket 500 has a plurality of first connecting components 51 , and the plurality of first connecting components 51 are connected to a plurality of mounting holes of a same mounting position 100 b in the battery body 100 a .

[0086] The main frame 400 is a main structural component that supports and fixes the core components (such as the battery device 100, the engine, the motor, etc.) in the electrical device. Its function is to provide a stable installation foundation to ensure that the core components can operate safely and reliably while withstanding various external forces (such as vibration, impact, gravity, etc.).

[0087] The main frame 400 may be composed of one or more parts, depending on the type of the electrical device and the use requirements. For example, when the electrical device is a vehicle, the main frame 400 may be at least part of the vehicle chassis structure, for example, at least part of the floor of the vehicle, and may be a crossbeam, a longitudinal beam, etc.; when the electrical device is a ship, the main frame 400 may be the hull, and may be composed of multiple parts.

[0088] The main support 400 is generally a three-dimensional structure having a certain length direction, a width direction and a height direction Z. The height direction Z refers to a direction perpendicular to the ground or a reference plane.

[0089] The battery body 100a includes the above-mentioned box and battery cells, is the main part of the battery device 100, and is also the part of the battery device 100 other than the connecting bracket 500. The side of the battery body 100a is generally provided with a plurality of mounting positions 100b, and the mounting position 100b refers to the area or structure on the battery body for installing, fixing or connecting the connecting bracket 500. The mounting hole is a through hole provided at the mounting position 100b for fasteners such as bolts and screws in the connecting bracket 500 to pass through. The connection method between the connecting bracket 500 and the mounting hole can be through-connection, threaded connection, clamping, etc. according to the use requirements.

[0090] The connecting bracket 500 is a connecting component connecting the battery body 100a and the main bracket 400. In this embodiment, a plurality of connecting brackets 500 are provided, and the structures of the plurality of connecting brackets 500 can be the same or different, depending on the specific use requirements.

[0091] The connecting bracket 500 includes a first connecting component 51 and a second connecting component 52 connected to each other. The second connecting component 52 is used to connect with the main bracket 400.

[0092] At least one connecting bracket 500 has multiple first connecting components 51, and the multiple first connecting components 51 are connected to multiple mounting holes of the same mounting position 100b in the battery body 100a, which means that at least one connecting bracket 500 can only include the first connecting component 51, or can also include other components in addition to the first connecting component 51, such as a second connecting component, a third connecting component, etc., as long as these components work together to ensure that the connecting bracket 500 can firmly fix the battery body 100a on the main bracket 400, and in the connecting bracket 500 with multiple first connecting components 51, the multiple first connecting components 51 are respectively connected to the multiple mounting holes of the same mounting position 100b in the battery body 100a.

[0093] The first connecting component 51 is a fixing component in the connecting bracket 500 connected to the battery body 100a, and its function is to firmly install the connecting bracket 500 on the battery body 100a to ensure that the connection between the connecting bracket 500 and the battery body 100a is stable and reliable.

[0094] The first connection assembly 51 may be composed of one or more parts, and the specific structure may be determined according to the use requirements. For example, the first connection assembly 51 may include at least part of bolts, nuts, buckles, etc., and may also include at least part of welding points, washers, positioning pins, etc.

[0095] The second connecting component 52 is a fixing component in the connecting bracket 500 connected to the main bracket 400, and its function is to firmly install the connecting bracket 500 on the main bracket 400 to ensure a stable and reliable connection between the connecting bracket 500 and the main bracket 400. The specific structure of the second connecting component 52 can be determined according to the use requirements, such as including bolts, nuts, and at least part of welding points, washers, positioning pins, etc.

[0096] The structure of the second connecting component 52 may be the same as or different from that of the first connecting component 51 , depending on the usage requirements.

[0097] In this embodiment, the first connecting component 51 and the second connecting component 52 can be directly connected or indirectly connected. Indirect connection means that the first connecting component 51 and the second connecting component 52 are arranged at intervals and connected through other components.

[0098] In the related art, generally only one first connection component 51 is provided in the same connection bracket 500, that is, only one first connection component 51 is provided in the same mounting position 100b of the battery body 100a, while in the battery device provided in the embodiment of the present application, at least one connection bracket 500 has multiple first connection components 51, and the multiple first connection components 51 are connected to multiple mounting holes of the same mounting position 100b in the battery body 100a. Compared with the related art, the same connection bracket 500 can have multiple connection points with the battery body 100a, which can improve the connection stability of a single connection bracket and the battery device to a certain extent. To make the mounting connection between the battery device and the main bracket of the electric device stable, fewer connection brackets 500 can be used, which can reduce the number of parts required for the battery device and the electric device, and can reduce the manufacturing cost to a certain extent.

[0099] Please refer to Figures 4 to 6 , Figure 5 for Figure 4 The side view structural diagram of the connecting bracket shown in FIG. Figure 6 For along Figure 5 The cross-sectional structural diagram along line AA, in some embodiments, the connecting bracket 500 further includes a buffer member 53.

[0100] In the same connecting bracket 500, a plurality of first connecting components 51 are arranged at intervals along the first direction X; at least a portion of the second connecting component 52 is arranged at intervals from the first connecting component 51, and can at least move relative to the first connecting component 51 in the height direction of the first connecting component 51. At least a portion of the buffer 53 is connected between the plurality of first connecting components 51, and at least a portion of the buffer 53 is connected between the second connecting component 52 and the first connecting component 51. The buffer 53 can at least absorb at least a portion of the load in the height direction Z and the first direction X. The height direction Z is arranged at an angle to the first direction X.

[0101] The first direction X is the arrangement direction of the plurality of first connecting components 51 , which is generally the length direction of the battery body 100 a , and may also be the width direction of the battery body 100 a , or other directions, which may be determined according to usage requirements.

[0102] In this embodiment, at least part of the second connecting component 52 is spaced apart from the first connecting component 51, which means that the second connecting component 52 can be spaced apart from the first connecting component 51 as a whole, or a part of it can be movably connected to the first connecting component 51, and the other part of it can be spaced apart from the first connecting component 51. At least part of the second connecting component 52 and the first connecting component 51 can be spaced apart only in the first direction X, or can be spaced apart not only in the first direction X, but also in other directions (such as the second direction Y). The second direction Y is perpendicular to the height direction Z and the first direction X, respectively.

[0103] The above-mentioned ability to move relative to the first connecting component 51 in the height direction Z of the first connecting component 51 means that when the second connecting component 52 is subjected to external force, it can at least move relative to the first connecting component 51 along the height direction Z. In addition, according to usage needs, it can also move relative to the first connecting component 51 along the first direction X or other directions (such as the second direction Y).

[0104] The buffer member 53 is a part of the connecting bracket 500 and is located on the force transmission path between the main bracket 400 and the battery body 100a. It is used to support and connect the first connecting component 51 and the second connecting component 52. Its function is to provide structural support and transfer loads to ensure the relative position and stability between the first connecting component 51 and the second connecting component 52.

[0105] In this embodiment, the buffer 53 can buffer forces in multiple directions. The buffer 53 can absorb the load between multiple first connecting components 51, and can also absorb the load between the first connecting component 51 and the second connecting component 52. The above loads include but are not limited to the loads in the first direction X and the height direction Z.

[0106] In this embodiment, the first connecting component 51 of the connecting bracket 500 is connected to the main bracket 400, the second connecting component 52 is connected to the battery body 100a, and the buffer 53 serves as an intermediate structure to support and transfer the load. This design ensures that the battery body 100a can be firmly installed on the main bracket 400, while bearing the vibration, impact and other dynamic loads during the use of the electrical equipment.

[0107] There are multiple first connection components 51, and the multiple first connection components 51 are connected by the buffer 53. In this way, when at least one first connection component 51 is subjected to external force and relative displacement occurs with other first connection components 51 in the first direction X or other directions, the buffer 53 can absorb at least part of the load transmitted by the first connection component 51, thereby reducing the risk of collision between the battery body 100a and the main frame 400.

[0108] At least a portion of the second connecting component 52 is spaced apart from the first connecting component 51, and the two are connected by a buffer 53, so that when the first connecting component 51 is subjected to external force and a relative displacement occurs with the second connecting component 52 in the first direction X, the height direction Z or other directions, the buffer 53 can absorb at least part of the load, thereby reducing the risk of collision between the battery body 100a and the main bracket 400.

[0109] It can be seen that, with the battery device provided in this embodiment, a plurality of first connection components 51 are provided, and the plurality of first connection components 51 are connected through at least part of the buffer 53, and at least part of the second connection component 52 is connected to the first connection component 51 through at least part of the buffer 53, and the buffer 53 in the connection bracket 500 can absorb vibration loads in multiple directions, thereby reducing the risk of collision between the battery body 100a and the main bracket 400. In this way, the battery device can use fewer connection brackets 500, which can meet the shock absorption needs of the battery body 100a, and can reduce the manufacturing cost to a certain extent.

[0110] Among them, there are multiple first connecting components 51, which not only helps to absorb loads in multiple directions, but also can improve the mounting capacity of the battery body 100a to a certain extent compared to setting only one first connecting component 51, so that the structure of the electrical device using the battery device is stable.

[0111] like Figures 4 to 6 As shown, in some embodiments, the first connecting component 51 includes a main body 511 and a first fastener 512. The main body 511 is located on a side of the battery body 100a close to the main support 400. The main body 511 is provided with a through hole 511a. The through hole 511a passes through two opposite sides of the main body 511 in the height direction Z. A portion of the first fastener 512 is inserted into the through hole 511a and connects the battery body 100a and the main body 511. The buffer 53 is arranged around at least a portion of the outer peripheral wall of the main body 511.

[0112] The main body 511 is the main part of the first connecting component 51 and plays a supporting role. The main body 511 can be composed of one or more parts, which can be determined according to the use requirements.

[0113] The main body 511 is located between the battery body 100a and the main support 400, which means that the main body 511, as a solid component, can be surrounded or clamped by the battery body 100a and the main support 400 from both sides, or can be spaced apart from at least one of the battery body 100a and the main support 400, which can be determined according to the use requirements. In this embodiment, the main body 511 is fastened to the battery body 100a by the first fastener 512, and there may be a spacing between the main body 511 and the main support 400, or there may not be a spacing, which can be determined according to the use requirements.

[0114] The first fastener 512 is used to provide a mechanical locking force to fix the main body 511 and the battery body 100a together. The first fastener 512 may include a bolt, a nut, a screw, etc., and the specific method may be determined according to the use requirements.

[0115] The buffer 53 surrounds at least part of the outer peripheral wall of the main body 511, which means that the buffer 53 covers the outer peripheral wall of the main body 511 in a manner of at least partially surrounding. Among them, at least partially surrounding includes at least the following situations: the first is to surround only at least part of the outer peripheral wall of the main body 511; the second is to surround the entire outer peripheral wall of the main body 511. The outer peripheral wall refers to the circumferential wall surface outside the object, that is, the side or outer surface surrounding the outer circle of the object and extending along its circumference (circumferential direction).

[0116] The first connecting component 51 adopts the solution provided in this embodiment, including a main body 511 and a first fastener 512. The main body 511 and the battery body 100a are connected by the first fastener 512, and the buffer 53 surrounds at least part of the outer wall of the main body 511. This can make the structure of the first connecting component 51 simple, easy to install and disassemble, and easy to install the buffer 53.

[0117] like Figure 6 As shown, in some embodiments, the outer peripheral wall of the main body 511 is provided with a receiving groove 513 . At least a portion of the buffer member 53 is disposed in the receiving groove 513 .

[0118] The receiving groove 513 is a groove structure for receiving at least part of the buffer 53, and can be an annular groove, an arc groove, a strip groove, etc. according to the use requirements. The receiving groove 513 can include one or more groove structures according to the use requirements.

[0119] At least part of the buffer 53 is disposed in the receiving groove 513, including the following situations: first, the buffer 53 is completely located in the receiving groove 513; second, a part of the buffer 53 is located in the receiving groove 513, and the other part is located outside the receiving groove 513.

[0120] The setting of the accommodating groove 513 can, on the one hand, reduce the volume of the combined structure of the buffer member 53 and the first connecting component 51, and on the other hand, limit the relative position of at least part of the buffer member 53 and the first connecting component 51, so that the structure of the connecting bracket 500 is stable.

[0121] In some embodiments, the main body 511 includes a support portion 5111 and a first side portion 5112. The support portion 5111 is provided with a through hole 511a. The first side portion 5112 is connected to the outer peripheral wall of the support portion 5111. The first side portion 5112 is provided with two groups. The two groups of first side portions 5112 are arranged at intervals along the height direction Z. The two groups of first side portions 5112 and the outer peripheral wall of the main body 511 form a receiving groove 513.

[0122] The support part 5111 is the main structure and the support structure in the main body 511. The support part 5111 may be composed of one or more parts, which may be determined according to the use requirements.

[0123] The first side portion 5112 is a component located outside the support portion 5111 and connected to the outer peripheral wall of the support portion 5111. It may be composed of one or more parts and may be integrally formed with the support portion 5111, or connected by welding, plug-in, etc.

[0124] Each group of first side portions 5112 may include one or more first side portions 5112 according to usage requirements.

[0125] The main body 511 adopts the solution provided in this embodiment, which can make the main body 511 simple in structure, stable, and easy to prepare.

[0126] In some embodiments, the two groups of first side portions 5112 are disposed at two ends of the support portion 5111 in the height direction Z.

[0127] In this way, the volume of the accommodating groove 513 can be larger, and a larger portion of the buffer member 53 can be accommodated, thereby making the connection structure between the buffer member 53 and the first connecting component 51 stable.

[0128] In some embodiments, the main body 511 is an integrally formed part.

[0129] The integrally formed part refers to the buffer 53 being processed into a complete form at one time through an integrally formed process, avoiding assembly or splicing, so as to improve strength, aesthetics or production efficiency. The integrally formed process can be injection molding, 3D printing, etc., which can be determined according to the use requirements.

[0130] The main body 511 is an integrally formed part, which has a stable structure and is easy to prepare.

[0131] like Figure 6As shown, in some embodiments, at least a portion of the second connecting component 52 is embedded in the buffer component 53 .

[0132] Embedding refers to a core assembly process of permanently or semi-permanently embedding at least part of the second connection component 52 into a predetermined cavity of the buffer 53 through mechanical interference or deformation fit. The above deformation fit can be at least one of interference fit (press fit), transition fit (cold fit / hot fit), and elastic deformation fit.

[0133] At least a portion of the second connecting component 52 is embedded in the buffer component 53 , so that the connection between the second connecting component 52 and the buffer component 53 can be stable.

[0134] like Figures 3 to 6 As shown, in some embodiments, the second connection assembly 52 includes a first connection portion 521 and a second connection portion 522. The first connection portion 521 is connected to the buffer 53, and the first connection portion 521 surrounds at least part of the outer peripheral wall of the buffer 53. The second connection portion 522 connects the first connection portion 521 and the main support 400.

[0135] The first connection part 521 and the second connection part 522 are both part of the second connection component 52 . The materials of the two parts can be the same or different. The two parts can be integrally formed or connected by welding, plugging, etc.

[0136] One or more first connection parts 521 and second connection parts 522 may be provided, and may be respectively composed of one or more parts.

[0137] The first connection portion 521 may be an arc-shaped portion or an annular portion, depending on the usage requirements.

[0138] The second connection portion 522 can be in a bent shape or a straight plate structure according to usage requirements, and the specific shape can be determined according to usage requirements.

[0139] The second connecting component 52 adopts the solution provided in this embodiment, so that the structure of the second connecting component 52 is simple and the connection between the second connecting component 52 and the first connecting component 51 is stable.

[0140] In some embodiments, the first connection portion 521 is connected to the first connection component 51 .

[0141] The first connection portion 521 and the first connection assembly 51 can be connected by welding, integral molding, etc., which can be determined according to usage requirements.

[0142] The first connecting portion 521 is connected to the first connecting assembly 51 , so that the structure of the connecting bracket 500 can be stabilized.

[0143] In some embodiments, the first connecting portion 521 and the first connecting assembly 51 form a receiving cavity having at least one opening. At least a portion of the buffer member 53 is disposed in the receiving cavity.

[0144] The accommodating cavity may be provided with one or more openings, which may be determined according to usage requirements.

[0145] During preparation, the first connection portion 521 and the first connection assembly 51 may be connected and formed first, and then the buffer member 53 may be inserted into the accommodating cavity through the opening or prepared by injection molding.

[0146] The first connection portion 521 and the first connection assembly 51 form a receiving cavity, in which at least part of the buffer 53 is covered, so that the connection area between the first connection portion 521 and the first connection assembly 51 is larger, and the contact area between the first connection portion 521 and the buffer 53 is larger, which helps to improve the structural stability of the connection bracket 500 and reduce the risk of the connection bracket 500 being crushed during use. The crush risk refers to the critical state of plastic deformation or structural failure of the component under axial / radial load.

[0147] like Figures 7 to 9 As shown, Figure 7 Schematic diagram of the three-dimensional structure of the connecting bracket in the battery device provided in other embodiments of the present application, Figure 8 for Figure 7 The side view structural diagram of the connecting bracket shown in FIG. Fig. 9 For along Figure 8 In the cross-sectional structural diagram along the middle BB line, in some embodiments, the first connecting portion 521 includes a surrounding portion 5211 and a second side portion 5212. The surrounding portion 5211 surrounds at least a portion of the first connecting component 51 and is spaced apart from the first connecting component 51. The second side portion 5212 is located on a side of the surrounding portion 5211 close to the buffer 53, and connects the bottom of the surrounding portion 5211 and the first connecting component 51. The second side portion 5212, the surrounding portion 5211, and the outer peripheral wall of the first connecting component 51 form a receiving cavity.

[0148] The surrounding portion 5211 and the second side portion 5212 are both components of the first connection portion 521. The first connection portion 521 may include only the surrounding portion 5211 and the second side portion 5212, or may include other parts in addition to the surrounding portion 5211 and the second side portion 5212, depending on the specific usage requirements.

[0149] The surrounding portion 5211 is the portion of the first connecting portion 521 that contacts the buffer member 53 , and may be an arc-shaped structure or an annular structure, depending on the usage requirements.

[0150] The second side portion 5212 is located outside the surrounding portion 5211 and connected to the outer wall of the surrounding portion 5211. At least a portion of the second side portion 5212 radially protrudes from the surrounding portion 5211. The second side portion 5212 can be a plate or a block, depending on the use requirements.

[0151] The accommodating cavity is located above the second side portion 5212 , that is, the buffer member 53 is disposed above the second side portion 5212 in the height direction Z.

[0152] The first connection portion 521 adopts the structure provided in this embodiment, which has a simple structure and can make the accommodating cavity larger, so that more buffer members 53 can be arranged in the accommodating cavity, which helps to improve the stability of the connecting bracket 500 structure.

[0153] like Figures 9 to 12 As shown, Fig.10 Schematic diagram of the three-dimensional structure of the connecting bracket in the battery device provided in other embodiments of the present application, Fig.11 for Fig.10 The side view structural diagram of the connecting bracket shown in FIG. Fig.12 For along Fig.11 Schematic diagram of the cross-sectional structure along the CC line. In some embodiments, the size of the surrounding portion 5211 in the height direction Z is greater than or equal to 1 / 2 of the size of the first connecting component 51 in the height direction Z.

[0154] In this way, the accommodating cavity can be made larger, so that more buffer members 53 can be arranged in the accommodating cavity, which helps to improve the stability of the connecting bracket 500 structure.

[0155] In some embodiments, the second edge portion 5212 is connected to the bottom of the first connecting component 51 .

[0156] In this way, except for the portion connected to the second edge portion 5212 , the outer peripheral wall of the other portions of the first connecting component 51 can be used as the inner wall of the accommodating cavity, which can make the accommodating cavity larger and help improve the stability of the connecting bracket 500 structure.

[0157] In some embodiments, the second side portion 5212 connects a plurality of first connection components 51 .

[0158] The second edge portion 5212 can be connected to the first connecting component 51 by welding, plugging or other methods.

[0159] The second side portion 5212 is connected to the plurality of first connection components 51 , which can reduce the risk of the portion where the buffer member 53 is located being crushed, and can further reduce the risk of the connection bracket 500 being crushed during use.

[0160] like Fig. 9 and Fig.12As shown, in some embodiments, the first connection portion 521 further includes a third side portion 5213. The third side portion 5213 is located on a side of the surrounding portion 5211 away from the buffer 53, and is connected to the surrounding portion 5211. The third side portion 5213 and the surrounding portion 5211 form a corner structure. A portion of the second connection portion 522 is disposed in the space surrounded by the corner structure, and is connected to both the third side portion 5213 and the surrounding portion 5211.

[0161] The third side portion 5213 is a component of the first connection portion 521 and may be a plate, a block, etc. The extending direction is perpendicular to the height direction Z or is arranged at an acute angle or an obtuse angle.

[0162] The corner structure refers to an angular connection formed by a specific geometrical match between the third side portion 5213 and the surrounding portion 5211. The specific geometrical match may be that the third side portion 5213 and the surrounding portion 5211 extend in different directions, and the angle between the two connected surfaces is less than 180°.

[0163] A portion of the second connection portion 522 is disposed in the space surrounded by the corner structure, which means that a portion of the second connection portion 522 is covered by the corner structure.

[0164] The second connection portion 522 may be welded to the third side portion 5213 and the surrounding portion 5211 , or connected by other means (such as gluing, plug-in, etc.).

[0165] The provision of the third side portion 5213 can increase the connection area between the second connection portion 522 and the first connection portion 521 , so that the structure of the second connection component 52 is stable.

[0166] like Fig.12 As shown, in some embodiments, the second connection portion 522 includes a straight portion 5221 and a bent portion 5222. The bent portion 5222 is connected to the first connection portion 521. The straight portion 5221 is connected to the bent portion 5222, and the straight portion 5221 is used to fit and connect with the main support 400.

[0167] The straight portion 5221 and the bent portion 5222 are both components of the second connection portion 522. The second connection portion 522 may only include the straight portion 5221 and the bent portion 5222, or may include other structures in addition to the straight portion 5221 and the bent portion 5222.

[0168] The straight portion 5221 refers to a component that extends substantially in a straight line in the longitudinal direction. The surface of the straight portion 5221 in contact with the main support 400 is a continuous plane with a curvature radius of >1000 mm. The curvature radius of at least part of the bent portion 5222 is ≤10 mm.

[0169] Since the portion of the main bracket 400 that contacts the second connecting portion 522 is generally flat, the second connecting portion 522 includes a straight portion 5221 and a bent portion 5222. The straight portion 5221 is attached to and connected to the main bracket 400, which facilitates stable connection between the second connecting portion 522 and the main bracket 400, and allows the position of the straight portion 5221 to be set according to installation needs, which helps to adapt to different usage environments.

[0170] like Figure 6 As shown, in some embodiments, the second connecting component 52 further includes a second fastener 523. The second fastener 523 is used to connect the second connecting portion 522 and the main support 400.

[0171] The structure of the second fastener 523 may be the same as or different from that of the first fastener 512 , depending on the usage requirements.

[0172] The second connecting portion 522 is connected to the main frame 400 through the second fastener 523 , which facilitates the connection and disassembly of the connecting frame 500 and the main frame 400 and the replacement of the connecting frame 500 .

[0173] like Figure 6 As shown, in some embodiments, a plurality of second connection portions 522 are provided, and the plurality of second connection portions 522 are spaced apart along the outer peripheral wall of the first connection portion 521 .

[0174] That the multiple second connection parts 522 are arranged at intervals along the outer peripheral wall of the first connection part 521 means that the arrangement path of the second connection parts 522 follows the contour of the outer ring side surface of the first connection part 521 (such as a cylindrical surface, a polygonal side surface, etc.), and a gap is left between two adjacent second connection parts 522.

[0175] By adopting the solution provided in this embodiment, multiple connection points can be provided between the second connection component 52 and the main support 400, so that the connection between the connection support 500 and the main support 400 is stable, and the mounting stability of the battery body 100a can be better.

[0176] like Figure 6 As shown, in some embodiments, two second connection parts 522 are provided. The two second connection parts 522 are respectively provided on both sides of the first connection part 521 along the first direction X.

[0177] The two second connection parts 522 are disposed on both sides of the first connection part 521 along the first direction X, which means that the two second connection parts 522 are disposed on both sides of the first connection part 521, and the two second connection parts 522 are respectively spaced apart from the first connection part 521 in the first direction X. The spacing between the two second connection parts 522 and the first connection part 521 can be the same or different, which can be determined according to the specific use requirements.

[0178] By adopting the solution provided in this embodiment, the structure of the second connecting component 52 can be simplified, and there are multiple connection points between the second connecting component 52 and the main bracket 400, so that the connection between the connecting bracket 500 and the main bracket 400 is stable, and the mounting stability of the battery body 100a can be better.

[0179] In some embodiments, the first connection portion 521 and the second connection portion 522 are integrally formed.

[0180] The first connection portion 521 and the second connection portion 522 are integrally formed, which means that the two are manufactured by an integral molding process.

[0181] The first connection portion 521 and the second connection portion 522 are integrally formed, which is easy to prepare and has a stable structure.

[0182] like Figure 3 and Fig.13 As shown, Fig.13 The three-dimensional structural diagram of the connecting bracket in the battery device provided in some other embodiments of the present application, in some embodiments, the second connecting component 52 also includes a third connecting portion 524, the third connecting portion 524 is connected to the second connecting portion 522, and the third connecting portion 524 is used to connect the main bracket 400. That is, the third connecting portion 524 connects the second connecting portion 522 and the main bracket 400.

[0183] The third connection portion 524 is a component of the second connection assembly 52. ​​The third connection portion 524 may be composed of one or more components.

[0184] The third connection portion 524 is suitable for a case where the distance between the main support 400 and the battery body 100 a is large and the connection between the main support 400 and the combined structure of the first connection assembly 51 and the buffer member 53 cannot be achieved through the first connection portion 521 and the second connection portion 522 .

[0185] In some embodiments, the buffer component is integrally connected with the first connecting component and the second connecting component by injection molding.

[0186] During preparation, the first connecting component and the second connecting component can be prepared and formed first, and the positions of the two can be arranged and fixed by injection molding equipment. Then, the injection molding material required for preparing the buffer component is injected between the first connecting component and the second connecting component, so that the injection molding material fills the preset space between the first connecting component and the second connecting component. Then, the injection molding material is cooled and formed to obtain the buffer component.

[0187] By adopting the solution provided in this embodiment, the buffer component can be tightly connected to the first connecting component and the second connecting component, so that the structure of the connecting bracket is stable.

[0188] In some embodiments, at least a portion of the buffer 53 is an elastic portion.

[0189] There are several cases where at least one buffering portion of the buffer 53 is an elastic portion: first, a portion of the buffer 53 is an elastic portion, and another portion is a non-elastic portion; second, the entire buffer 53 is an elastic portion.

[0190] Elasticity refers to the property of an object to restore its original size and shape after deformation. At least part of the buffer 53 is an elastic part, which means that at least part of the buffer 53 can absorb loads in multiple directions and has the ability to restore to its original shape after the load disappears.

[0191] By adopting the solution provided in this embodiment, at least a portion of the buffer 53 can be made elastic, and the damping characteristics of the elastic portion can absorb high-frequency vibrations to which the electrical device is subjected during use, such as high-frequency vibrations (50-1000Hz) generated by the motor / road surface, thereby reducing the vibration energy transmitted to the battery body 100a by more than 60%, and reducing the risk of micro-damage to the internal structure of the battery body 100a; by adjusting the stiffness of the elastic portion (usually designed to be in the range of 20-50N / mm), the system natural frequency of the battery body 100a is made to avoid the main excitation frequency of the main part of the electrical device (such as the motor fundamental frequency 20-200Hz), thereby preventing fatigue fracture caused by resonance.

[0192] In some embodiments, the buffer member 53 is an integrally formed member.

[0193] The one-piece molded part refers to the buffer 53 being processed into a complete form at one time through an one-piece molding process to avoid assembly or splicing to improve strength, aesthetics or production efficiency. The one-piece molding process can be injection molding, 3D printing, etc., which can be determined according to the use requirements.

[0194] The buffer component 53 is an integrally formed component, which can make the buffer component 53 structurally stable and easy to prepare.

[0195] In some embodiments, the buffer member 53 is a rubber member.

[0196] The buffer 53 is made of rubber, which can make the buffer 53 have excellent shock absorption and cushioning performance, can adapt to complex environments, and has low production cost. It can be made into complex shapes through molding, extrusion and other processes. The density is lower than that of metal, and it is suitable for weight-sensitive applications.

[0197] In some possible implementations, the first direction is perpendicular to the height direction.

[0198] This makes it easier to design and process.

[0199] Some other embodiments of the present application provide an electric device, which includes a main frame and a battery device provided by any of the above embodiments, wherein the connecting frame is connected to the main frame.

[0200] The power-consuming device may be any of the aforementioned devices or systems using a battery.

[0201] The electrical device provided in the embodiment of the present application, including the above-mentioned battery device, can achieve the same effect as above, which will not be described in detail here.

[0202] like Figures 3 to 13 As shown, an embodiment of the present application provides an electric device. The electric device includes a main frame 400, a battery body 100a and a connecting frame 500. The main frame 400 has a height direction Z. At least part of the battery body 100a is located below the main frame 400 in the height direction Z. The battery body 100a is provided with a plurality of mounting positions 100b. At least one mounting position 100b is provided with a plurality of mounting holes. The connecting frame 500 is provided at the mounting position 100b, connecting the battery body 100a and the main frame 400.

[0203] The connecting bracket 500 includes a first connecting component 51, a second connecting component 52 and a buffer 53. The buffer 53 is made of rubber material and is integrally formed.

[0204] At least one connecting bracket 500 has a plurality of first connecting components 51 , and the plurality of first connecting components 51 are connected to a plurality of mounting holes of a same mounting position 100 b in the battery body 100 a .

[0205] In the same connecting bracket 500, multiple first connecting components 51 are arranged at intervals along the first direction X, and are connected by force conduction through a part of the buffer 53; at least a part of the second connecting component 52 is arranged above the first connecting component 51 in the height direction Z, and is connected to the main bracket 400, the second connecting component 52 is arranged at intervals from the first connecting component 51 in the first direction X, and the second connecting component 52 is connected to the first connecting component 51 by force conduction through a part of the buffer 53, and the first direction X is perpendicular to the height direction Z.

[0206] The first connecting component 51 includes a main body 511 and a first fastener 512. The main body 511 is located between the battery body 100a and the main bracket 400. The main body 511 is provided with a through hole 511a. The through hole 511a passes through two opposite sides of the main body 511 in the height direction Z. A part of the first fastener 512 is passed through the through hole 511a and connects the battery body 100a and the main body 511. The buffer member 53 is arranged around at least part of the outer peripheral wall of the main body 511.

[0207] The outer peripheral wall of the main body 511 is provided with a receiving groove 513, and at least part of the buffer 53 is provided in the receiving groove 513. The main body 511 includes a support portion 5111 and a first side portion 5112, the support portion 5111 is provided with a through hole 511a, the first side portion 5112 is connected to the outer peripheral wall of the support portion 5111, and the first side portion 5112 is provided with two groups, and the two groups of first side portions 5112 are arranged at intervals along the height direction Z, and the two groups of first side portions 5112 and the outer peripheral wall of the main body 511 form the receiving groove 513. The two groups of first side portions 5112 are respectively arranged at both ends of the support portion 5111 in the height direction Z.

[0208] The main body 511 is an integrally formed part. At least a portion of the second connecting component 52 is embedded in the buffer member 53 .

[0209] The second connecting component 52 includes a first connecting portion 521 and a second connecting portion 522 . The first connecting portion 521 is connected to the buffer component 53 and is disposed around at least a portion of the outer peripheral wall of the buffer component 53 . The second connecting portion 522 connects the first connecting portion 521 and the main bracket 400 .

[0210] In some embodiments, the first connecting portion 521 and the first connecting assembly 51 are connected to form a receiving cavity having at least one opening, and at least a portion of the buffer member 53 is disposed in the receiving cavity.

[0211] The first connecting portion 521 includes a surrounding portion 5211 and a second side portion 5212. The surrounding portion 5211 is arranged to surround at least a portion of the first connecting component 51 and is spaced apart from the first connecting component 51. The second side portion 5212 is located on a side of the surrounding portion 5211 close to the buffer member 53 and connects the bottom of the surrounding portion 5211 and the first connecting component 51. The second side portion 5212, the surrounding portion 5211 and the outer peripheral wall of the first connecting component 51 form a accommodating cavity.

[0212] The dimension of the surrounding portion 5211 in the height direction Z is greater than or equal to 1 / 2 of the dimension of the first connecting component 51 in the height direction Z. The second side portion 5212 is connected to the bottom of the first connecting component 51 .

[0213] The first connecting portion 521 also includes a third side portion 5213, which is located on the side of the surrounding portion 5211 away from the buffer member 53 and is connected to the surrounding portion 5211. The third side portion 5213 and the surrounding portion 5211 form a corner structure, and a portion of the second connecting portion 522 is arranged in the space enclosed by the corner structure and is connected to both the third side portion 5213 and the surrounding portion 5211.

[0214] The second connection portion 522 includes a straight portion 5221 and a bent portion 5222 . The bent portion 5222 is connected to the first connection portion 521 . The straight portion 5221 is connected to the bent portion 5222 , and is attached to and connected to the main support 400 .

[0215] The second connection portion 522 is connected to the main frame 400 via a second fastener 523 .

[0216] There are two second connection parts 522 , and the two second connection parts 522 are respectively arranged on two sides of the first connection part 521 along the first direction X. The second connection component 52 is an integrally formed part.

[0217] In the related art, due to the complexity of the vehicle body and the contradiction between the double-hole mounting point structure of the battery body 100a (the mounting point of the battery body 100a is provided with two mounting holes), the traditional rubber shock-absorbing bracket structure cannot be directly used. In addition, the current structure has a high production cost, and the shock-absorbing bracket parts need to be simplified and reduced in cost.

[0218] The design of the shock-absorbing structure needs to meet the requirements of the vehicle body envelope and the mounting hole interface of the battery body 100a at the same time. These two constraints increase the complexity of the design. This complexity leads to further improvement in the requirements for the mounting connection bracket 500 with a shock-absorbing structure. The mounting connection bracket 500 needs to have higher precision, strength and durability. Higher design requirements and technical standards will push up costs (including R&D costs, material costs and manufacturing costs), which will make the cost of the mounting connection bracket 500 and the electrical device higher.

[0219] The above-mentioned body envelope requirement refers to the fact that there are certain space limitations inside and outside the vehicle body in vehicle design, and the design of the shock-absorbing structure must be completed without exceeding these space limitations. The mounting hole interface of the battery body 100a refers to the specific interface position and form of the connection between the battery body 100a and the vehicle body. The shock-absorbing structure must be precisely matched with these interfaces to ensure that the battery body 100a can be firmly installed on the vehicle body.

[0220] The electric device provided in this embodiment can not only meet the requirements of the vehicle body envelope and the mounting hole interface of the battery device 100, but also make the cost lower. Specifically, when the electric device provided in this embodiment is a vehicle, since a plurality of first connecting components 51 are provided, the mounting method of the battery device 100 is optimized through double-axis locking, and the shock absorption capacity in all directions is improved. It is easy to install and can be directly installed at the bottom of the beam without the need for an additional adapter bracket. While enhancing the mounting capacity of the battery device 100, the connecting bracket 500 is highly applicable and easy to install, and improves its adaptability to vehicle body vibration. Compared with the prior art, the number of connecting brackets 500 used can be reduced, and the structure of the electric device can be simplified. On the basis of ensuring its applicability and shock absorption capacity of multiple interfaces, its use cost can be reduced. Therefore, the electric device provided in this embodiment adopts a low-cost shock-absorbing and torsion-resistant bracket (i.e., the above-mentioned connecting bracket 500) that is integrated with the frame, thereby achieving shock absorption of the battery device 100, easy installation of the structure, and multiple adaptation of the mounting interface. In addition, the connection bracket 500 in this embodiment can be positioned according to the frame interface and the mounting requirements of the battery device 100. On the basis of ensuring the shock absorbing ability of the rubber, the shape of the connection bracket 500 can be changed to meet the requirements of various scenarios.

[0221] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery device, used to connect to a main frame of an electrical device, characterized in that: The battery device comprises a battery body and a connecting bracket; The battery body is provided with a plurality of mounting positions, and at least one of the mounting positions is provided with a plurality of mounting holes; The connecting bracket is arranged at the mounting position; The connecting bracket comprises a first connecting component and a second connecting component connected to each other, wherein the second connecting component is used to connect to the main body bracket; At least one of the connection brackets has a plurality of first connection components, and the plurality of first connection components are connected to a plurality of mounting holes of the same mounting position in the battery body.

2. The battery device according to claim 1, characterized in that The connecting bracket also includes a buffer member; In the same connecting bracket, multiple first connecting components are spaced apart along the first direction, at least part of the second connecting component is spaced apart from the first connecting component, and can at least move relative to the first connecting component in the height direction of the first connecting component, at least part of the buffer is connected between multiple first connecting components, and at least part of the buffer is connected between the second connecting component and the first connecting component, and the buffer can at least absorb at least part of the load in the height direction and the first direction, and the height direction is set at an angle to the first direction.

3. The battery device according to claim 2, characterized in that: The first connecting component includes a main body and a first fastener. The main body is located on a side of the battery body close to the main body bracket. The main body is provided with a through hole. The through hole passes through two opposite sides of the main body in the height direction. A part of the first fastener is passed through the through hole and connects the battery body and the main body. The buffer is arranged around at least a portion of the outer peripheral wall of the main body.

4. The battery device according to claim 3, characterized in that: An outer peripheral wall of the main body is provided with a receiving groove, and at least a portion of the buffer member is disposed in the receiving groove.

5. The battery device according to claim 4, characterized in that: The main body includes a supporting portion and a first side portion, the supporting portion is provided with the through hole, the first side portion is connected to the outer peripheral wall of the supporting portion, the first side portion is provided with two groups, the two groups of the first side portions are spaced apart along the height direction, and the two groups of the first side portions and the outer peripheral wall of the main body form the accommodating groove.

6. The battery device according to claim 5, characterized in that Two groups of the first side portions are arranged at two ends of the support portion in the height direction.

7. The battery device according to claim 3, characterized in that: The main body is an integrally formed part.

8. The battery device according to any one of claims 2 to 7, characterized in that: At least a portion of the second connecting component is embedded in the buffer component.

9. The battery device according to any one of claims 2 to 7, characterized in that: The second connecting component includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the buffer component, and the first connecting portion is arranged around at least a portion of the outer peripheral wall of the buffer component, and the second connecting portion is connected to the first connecting portion and is used to connect to the main support.

10. The battery device according to claim 9, characterized in that The first connecting portion is connected to the first connecting component.

11. The battery device according to claim 10, characterized in that: The first connecting portion and the first connecting assembly form a receiving cavity having at least one opening, and at least a portion of the buffer member is disposed in the receiving cavity.

12. The battery device according to claim 11, characterized in that The first connecting portion includes a surrounding portion and a second side portion, the surrounding portion is arranged to surround at least a portion of the first connecting component and is spaced apart from the first connecting component, the second side portion is located on a side of the surrounding portion close to the buffer component and connects the bottom of the surrounding portion and the first connecting component, and the second side portion, the surrounding portion and the outer peripheral wall of the first connecting component form the accommodating cavity.

13. The battery device according to claim 12, characterized in that: The dimension of the surrounding portion in the height direction is greater than or equal to 1 / 2 of the dimension of the first connecting component in the height direction.

14. The battery device according to claim 12, characterized in that: The second side portion is connected to the bottom of the first connecting component.

15. The battery device according to claim 12, characterized in that: The second side portion connects a plurality of the first connection components.

16. The battery device according to claim 12, characterized in that: The first connecting portion also includes a third side portion, which is located on a side of the surrounding portion away from the buffer component and is connected to the surrounding portion. The third side portion and the surrounding portion form a corner structure, and a portion of the second connecting portion is arranged in the space enclosed by the corner structure and is connected to both the third side portion and the surrounding portion.

17. The battery device according to claim 9, characterized in that: The second connecting portion includes a straight portion and a bent portion, the bent portion is connected to the first connecting portion, the straight portion is connected to the bent portion, and the straight portion is used to fit and connect with the main support.

18. The battery device according to claim 9, characterized in that: The second connecting assembly also includes a second fastener, and the second fastener is used to connect the second connecting portion and the main body bracket.

19. The battery device according to claim 9, characterized in that: A plurality of the second connection parts are provided, and the plurality of the second connection parts are arranged at intervals along the outer peripheral wall of the first connection part.

20. The battery device according to claim 9, characterized in that There are two second connection parts, and the two second connection parts are arranged on both sides of the first connection part along the first direction.

21. The battery device according to claim 9, characterized in that The first connection portion and the second connection portion are integrally formed.

22. The battery device according to claim 9, characterized in that The second connecting assembly also includes a third connecting portion, which is connected to the second connecting portion and is used to connect to the main support.

23. The battery device according to any one of claims 2 to 7, characterized in that: The buffer component is integrally connected with the first connecting component and the second connecting component by injection molding.

24. The battery device according to any one of claims 2 to 7, characterized in that: At least a portion of the buffer member is an elastic portion.

25. The battery device according to any one of claims 2 to 7, characterized in that: The buffer component is an integrally formed component.

26. The battery device according to claim 25, characterized in that The buffer component is a rubber component.

27. The battery device according to any one of claims 2 to 7, characterized in that: The first direction is perpendicular to the height direction.

28. An electrical device, characterized in that: It comprises a main body support and the battery device according to any one of claims 1 to 27, wherein the connecting support is connected to the main body support.

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