Battery device and electric appliance

Abstract

The application relates to a battery device and an electric equipment, and belongs to the technical field of batteries. The battery device comprises a frame, a bottom plate and a communication assembly. The frame comprises a mounting beam. The bottom plate is connected to the frame and cooperates with the frame to form a containing space. The communication assembly comprises a first part and a second part. The first part is in an integrated structure with the mounting beam. The second part is connected to one end of the first part away from the containing space. The first part and the second part are configured to jointly communicate the containing space with the outside. The battery device and the electric equipment provided by the application aim to improve the integration of the communication assembly and the mounting beam and reduce the sealing and maintenance costs of the position of the communication assembly.

Description

Technical Field

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

[0002] The battery housing is an important component of the battery pack, serving as the load-bearing framework for the entire battery pack. It typically needs to have sufficient strength and rigidity to support the weight of the battery pack as well as external forces such as inertial loads and road vibrations generated during vehicle operation, thereby improving the stability of the battery pack during vehicle operation.

[0003] In related technologies, a connecting component is usually required on the enclosure to connect the enclosure's containing space with the outside world, thereby enabling the exchange of gas or liquid between the containing space and the outside world.

[0004] However, in battery devices using related technologies, the integration of connecting parts and the housing is low, and the sealing costs during molding and the maintenance costs during use are high. Utility Model Content

[0005] In view of the above problems, this application provides a battery device and electrical equipment that can improve the integration of the connecting component and the mounting beam, and reduce the sealing and maintenance costs of the connecting component location.

[0006] In a first aspect, embodiments of this application provide a battery device, which includes a frame, a base plate, and a connecting component. The frame includes a mounting beam; the base plate is connected to the frame and forms an accommodating space with the frame; the connecting component includes a first part and a second part, the first part and the mounting beam being integrally formed, the second part being connected to the end of the first part away from the accommodating space, and the first part and the second part being configured to jointly connect the accommodating space with the outside.

[0007] In the technical solution of this application embodiment, by setting the connecting component to include a first part and a second part, and the first part and the mounting beam are integrally formed, and the second part is connected to the end of the first part away from the accommodating space, the integrally formed first part and the mounting beam can improve the structural consistency between the connecting component and the frame, reduce the installation of sealing components required for sealing the connecting component and the frame, improve the sealing performance between the connecting component and the frame, simplify the installation process of the connecting component, and improve the production and processing efficiency of the battery device; at the same time, the split structure design of the second part and the first part allows the structure of the second part to be customized according to different user needs, and then connected and assembled with the first part, thereby improving the applicability of the connecting component and reducing the difficulty of maintenance, repair or replacement in subsequent use, and the overall reliability is higher.

[0008] In some embodiments, the first part includes a first nozzle body through which a first connecting hole is provided, at least a portion of the first nozzle body protruding from the surface of the mounting beam opposite to the receiving space, and the first connecting hole penetrating the first nozzle body and the mounting beam; the second part is connected to the first nozzle body. The fact that at least a portion of the first nozzle body protrudes from the surface of the mounting beam opposite to the receiving cavity facilitates the positioning and installation of the second part during installation and connection. This design simplifies the installation of the first and second parts, making it easier for the second part to connect to the first part.

[0009] In some embodiments, the first portion further includes a second nozzle, at least partially protruding from the surface of the mounting beam near the receiving space, with a first connecting hole penetrating the first nozzle, the mounting beam, and the second nozzle; the second nozzle is used to connect to a heat exchange plate disposed within the receiving space. This design facilitates the connection between the connecting assembly and the heat exchange plate inside the battery device, improves the applicability of the connecting assembly to different heat exchange plates, enhances the structural consistency of the connecting assembly between the connecting assembly and the frame inside the battery device, and improves the sealing performance of the connecting assembly between the connecting assembly and the frame inside the battery device.

[0010] In some embodiments, the second part includes a third nozzle through which a second connecting hole is provided; one end of the third nozzle is sleeved outside the first nozzle, and the first connecting hole communicates with the second connecting hole. This design simplifies the connection between the second part and the first part, and helps to improve the installation and connection efficiency of the second part and the first part.

[0011] In some embodiments, a limiting portion is provided on the outer surface of the first nozzle body away from the first connecting hole, and the end of the third nozzle body near the first nozzle body cooperates with the limiting portion. This design further reduces the installation difficulty of the second part and the first part. The limiting portion provided on the outer surface of the first nozzle body can be used to pre-position the second part first, and then the subsequent connection and fastening process between the first part and the second part can be carried out, which is conducive to further improving the installation and connection efficiency of the second part and the first part.

[0012] In some embodiments, the second part is welded to the first part. This improves the structural consistency between the second part and the first part, and enhances the overall reliability of the connected component structure.

[0013] In some embodiments, the frame includes two horizontal beams, two vertical beams, and two diagonal beams disposed on a base plate. One horizontal beam connects to one end of the two vertical beams, and the two ends of the other horizontal beam are respectively connected to the other ends of the two vertical beams via diagonal beams. The mounting beam is at least one of the horizontal beams, vertical beams, and diagonal beams. In this way, the connecting components can be disposed at various positions around the perimeter of the frame, thereby adapting to different electrical devices.

[0014] In some embodiments, the battery device further includes at least one connector, each connector being integrally formed with the mounting beam. This improves the structural consistency between the connector and the frame, and also simplifies the connection seal between the connector and the frame, enhancing both structural consistency and sealing reliability.

[0015] In some embodiments, the battery device further includes a grounding interface, which is integrally formed with the mounting beam. This allows grounding of the electrical equipment via the grounding interface, further improving the reliability of the battery device. Simultaneously, the integral integration of the grounding interface with the mounting beam enhances structural consistency between the grounding interface and the mounting beam, reducing the requirements for airtight installation.

[0016] In some embodiments, the grounding interface includes a connector and a conductive plate, the conductive plate being connected to the connector and at least partially exposed on the surface of the mounting beam near the base plate. This allows the portion of the conductive plate exposed on the mounting beam to smoothly contact and engage with the base plate during the installation of the frame and base plate, thus achieving grounding of the conductive plate and the base plate during the installation process without requiring a separate grounding installation procedure.

[0017] In some embodiments, the battery device further includes at least one locking accessory, which is integrally formed with the mounting beam; the locking accessory is used to lock onto the electrical equipment. This improves the structural consistency between the locking accessory and the mounting beam, reduces the sealing requirements of the locking accessory's installation position, and enhances reliability.

[0018] In some embodiments, a sealant is applied circumferentially to the mounting beam. This design further enhances the sealing strength between the periphery of the mounting beam and other components, thereby improving the sealing performance of the battery device.

[0019] Secondly, embodiments of this application provide an electrical device that includes a battery device as provided in any of the foregoing embodiments, the battery device being used to provide electrical energy.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a vehicle provided in one embodiment of this application;

[0023] Figure 2 This is an exploded view of the structure of a battery device provided in one embodiment of this application;

[0024] Figure 3 This is a three-dimensional structural diagram of the lower housing of a battery device provided in one embodiment of this application;

[0025] Figure 4 A schematic diagram of the cooperation structure between the mounting beam and other components in a battery device according to one embodiment of this application;

[0026] Figure 5 for Figure 4 Enlarged view of part A of the battery device shown;

[0027] Figure 6 A schematic diagram of the mounting beam and its cooperation structure with other components in a battery device provided in one embodiment of this application, viewed from a top angle;

[0028] Figure 7 for Figure 6 Enlarged view of part B of the battery device shown;

[0029] Figure 8 This is an exploded view of the structure of the connecting component and the grounding interface in a battery device according to an embodiment of this application;

[0030] Figure 9 for Figure 8 Enlarged view of section C of the battery device shown;

[0031] Figure 10 for Figure 8 Enlarged view of part D of the battery device shown.

[0032] Explanation of reference numerals in the attached diagram: 1. Vehicle; 200. Motor; 300. Controller; 101. Battery cell; 102. Housing; 1021. Lower housing; 1022. Upper housing;

[0033] 100. Battery assembly; 10. Frame; 11. Mounting beam; 12. Horizontal beam; 13. Vertical beam; 14. Diagonal beam; 20. Base plate; 30. Connecting component; 31. First part; 311. First nozzle; 312. First connecting hole; 313. Second nozzle; 314. Limiting part; 32. Second part; 321. Third nozzle; 322. Second connecting hole; 40. Connector; 50. Grounding interface; 51. Plug; 52. Conductive sheet; 60. Locking accessory; 104. Accommodating space. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the term "and / or" appears, "and / or" merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, the power battery, as the power source, plays an irreplaceable and crucial role. As a core component of new energy vehicles, the battery has high requirements in terms of both safety and cycle life. A battery consists of a casing and multiple battery cells housed within it. The casing provides a sealed and stable working environment for the battery cells, reducing external moisture corrosion and damage from external forces. The battery cell is the smallest unit that makes up the battery. Inside the casing, multiple battery cells can be connected in series, parallel, or a combination of both. They exchange energy or transmit signals with the outside world through a panel on the casing and various connecting components and ports on the panel.

[0041] Based on this, the inventors discovered that the water inlets, air inlets, and other connecting components installed on the casing, serving as ports for the exchange of liquid and gas inside the casing, require drilling holes in the panel during installation. After the connecting component is installed into the hole, sealing components such as flanges and sealing rings are needed to seal and fix the installation position of the connecting component, resulting in a complex and inefficient manufacturing process. Furthermore, when the sealing of the connecting component fails and needs replacement or repair, the entire connecting component must be disassembled, and a connecting component of the same model must be selected for installation and sealing, a process that is equally complex, leading to low efficiency in repair and replacement.

[0042] Based on the above considerations, in order to reduce the sealing and maintenance costs of the connecting component location, the inventors, after in-depth research, designed a battery device including a connecting component mounted on a mounting beam. The connecting component includes a first part and a second part, wherein the first part and the mounting beam are integrally formed to improve the structural consistency between the connecting component and the mounting beam, eliminating the installation process of sealing components such as flanges and sealing rings. Furthermore, the integral forming of the first part and the mounting beam can improve the integration and structural consistency between the connecting component and the mounting beam, effectively improving the sealing performance of the housing and reducing the sealing and maintenance costs of the connecting component location.

[0043] The batteries disclosed in this application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft. Power systems can be constructed using battery devices disclosed in this application, which helps improve the sealing performance of the battery devices and reduces the maintenance and repair costs during use.

[0044] This application provides an electrical device that uses a battery as a power source. This device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, and spacecraft. Electric toys can include stationary or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric airplane toys. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft.

[0045] For ease of explanation, the following embodiments will use a vehicle as an example of an electrical device according to an embodiment of this application.

[0046] like Figure 1 As shown, Figure 1This is a schematic diagram of a vehicle structure provided in one embodiment of this application. Vehicle 1 can be a fuel-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid vehicles, or range-extended vehicles, etc. The interior of vehicle 1 can house a motor 200, a controller 300, and a battery device 100. The controller 300 controls the battery device 100 to supply power to the motor 200. For example, the battery device 100 can be located at the bottom, front, or rear of vehicle 1. The battery device 100 can be used to power vehicle 1; for example, it can serve as the operating power source for the vehicle 1's electrical system, such as meeting the power requirements for starting, navigation, and operation of vehicle 1.

[0047] In another embodiment of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0048] To meet different power needs, the battery device 100 may include multiple battery cells 101, wherein the multiple battery cells 101 may be connected in series, in parallel, or in a mixed manner, where a mixed manner refers to a combination of series and parallel connections.

[0049] like Figure 2 The diagram shown is an exploded view of a battery device according to an embodiment of this application. The battery device 100 includes a housing 102 and a plurality of battery cells 101, which are housed within the housing 102. The housing 102 provides assembly space for the battery cells 101, and the housing 102 can have various structures. In some embodiments, the housing 102 may include a lower housing 1021 and an upper housing 1022, which overlap each other, and together define an assembly space for accommodating the battery cells 101. The upper housing 1022 can be a hollow structure open at one end, and the lower housing 1021 can be a plate-like structure. The lower housing 1021 covers the open side of the upper housing 1022, so that the lower housing 1021 and the upper housing 1022 together define the assembly space. Alternatively, both the lower housing 1021 and the upper housing 1022 can be hollow structures open on one side, with the open side of the lower housing 1021 covering the open side of the upper housing 1022. Of course, the housing 102 formed by the lower housing 1021 and the upper housing 1022 can be of various shapes, such as a cylinder or a cuboid.

[0050] In the battery device 100, multiple battery cells 101 can be connected in series, parallel, or in a mixed configuration. A mixed configuration means that multiple battery cells 101 are connected in both series and parallel configurations. Multiple battery cells 101 can be directly connected in series, parallel, or in a mixed configuration, and then the entire assembly of multiple battery cells 101 is housed in a housing 102. Alternatively, the battery device 100 can also be composed of multiple battery cells 101 first connected in series, parallel, or in a mixed configuration to form a battery module, and then multiple battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is then housed in a housing 102.

[0051] Please combine participation Figures 1 to 7 This application provides a battery device 100, which includes a frame 10, a base plate 20, and a connecting component 30. The frame 10 includes a mounting beam 11. The base plate 20 is connected to the frame 10 and forms a receiving space 104 with the frame 10. The connecting component 30 includes a first part 31 and a second part 32. The first part 31 and the mounting beam 11 are integrally formed. The second part 32 is connected to the end of the first part 31 that is away from the receiving space 104. The first part 31 and the second part 32 are configured to jointly connect the receiving space 104 to the outside.

[0052] The battery device 100 includes a frame 10 and a base plate 20. The base plate 20 is connected to the frame 10 and forms a receiving space 104 with the frame 10. In these embodiments of the present application, the lower housing 1021 of the battery device 100 is a hollow structure with one end open. The end of the frame 10 away from the base plate 20 is the open end of the lower housing 1021. During the assembly of the housing 102, the open end of the lower housing 1021 is closed with the upper housing 1022 to form a housing 102 structure with a sealed receiving space 104.

[0053] The connection between the base plate 20 and the frame 10 can be made detachably by means of snaps, slots, connectors (screws, bolts, studs, etc.) to facilitate the disassembly of the base plate 20 and the frame 10 for repair, maintenance or replacement. In some embodiments, the base plate 20 and the frame 10 can also be fixedly connected by adhesive, welding or even integral molding to improve the structural consistency between the base plate 20 and the frame 10 and increase the overall structural reliability of the battery device 100.

[0054] The frame 10 includes a mounting beam 11, wherein the frame 10 comprises multiple beam structures connected end-to-end along a circular trajectory. The base plate 20 is connected to one end of the frame 10 perpendicular to the circular trajectory, thus forming a hollow structure with one end open. The mounting beam 11 is any one of the multiple beam structures of the frame 10, used to install the connecting component 30.

[0055] In other words, in these embodiments of this application, the connecting component 30 can be set on any beam structure of the frame 10 as required by the structure, and is used to realize the exchange of liquid or gas between the containing space 104 and the outside.

[0056] The connecting component 30 includes a first part 31 and a second part 32. That is, in these embodiments of the present application, the connecting component 30 is a split structure. The first part 31 and the mounting beam 11 are integrally formed, which increases the structural consistency between the connecting component 30 and the mounting beam 11, thereby eliminating the installation process of sealing components such as flanges and sealing rings, improving the production and installation efficiency of the connecting component 30, and improving the sealing performance between the connecting component 30 and the mounting beam 11.

[0057] In these embodiments of this application, the first part 31 and the mounting beam 11 may be integrally formed by means of injection molding, die casting or 3D printing, but are not limited to.

[0058] For example, in an embodiment where the connecting component 30 and the mounting beam 11 are integrally molded by injection molding, the first part 31 and the mounting beam 11 can be made of the same material. The mold is designed so that the first part 31 is directly formed during injection molding of the mounting beam 11. In some embodiments, the first part 31 and the mounting beam 11 can be made of different materials. During the molding process of the mounting beam 11, the first part 31 is pre-embedded in the molding mold of the mounting beam 11, thereby achieving an integral structure between the first part 31 and the mounting beam 11 after the mounting beam 11 is formed.

[0059] The second part 32 is connected to the end of the first part 31 opposite to the receiving space 104, meaning that the second part 32 is located on the outside of the mounting beam 11 opposite to the receiving space 104 for connection with external liquid or gas supply components. In these embodiments of the present application, the second part 32 can be regarded as a connector for connecting the first part 31 to external components, and enabling external components to circulate liquid or gas into the receiving space 104 through the second part 32 and the first part 31.

[0060] In these embodiments of this application, after the first part 31 and the mounting beam 11 are integrally formed, the second part 32 can be differentiated to allow the connecting component 30 to be adapted to different models of liquid supply components or gas supply components, meeting the needs of different users and improving the applicability of the connecting component 30. Simultaneously, because the integrated structure of the first part 31 and the mounting beam 11 has better structural strength, the connecting component 30 usually does not experience sealing failure at the first part 31. When the connection between the first part 31 and the second part 32 experiences sealing failure due to material aging over time, the connecting component 30 can be repaired and replaced by simply disassembling and replacing the second part 32, reducing the sealing replacement cost of the connecting component 30 and improving repair and replacement efficiency.

[0061] The connection between the second part 32 and the first part 31 can also adopt a detachable connection method such as a threaded connection or a snap-fit ​​connection. Alternatively, in some embodiments, a fixed connection method such as an adhesive, fusion, or welding can be adopted. The connection method between the two can be selected according to the purpose and usage environment of the battery device 100.

[0062] The first part 31 and the second part 32 are configured to jointly connect the containing space 104 to the outside world. This means that the first part 31 and the second part 32 can jointly connect the containing space 104 to the outside world, so that one end of each part is connected to an external component and the other end is connected to a corresponding component in the containing space 104, thereby realizing the circulation of liquid or gas between the outside world and the containing space 104.

[0063] For example, taking the connecting component 30 for connecting the heat exchange plate in the housing space 104 and the external heat exchange component as an example, the heat exchange plate can be connected to one end of the connecting component 30 near the housing space 104, while the other end of the connecting component 30 is connected to the external heat exchange component, so that the heat exchange liquid can be introduced into the housing space 104 through the connecting component 30 and connected to the heat exchange plate in the housing space 104, and then exchange heat with each battery cell 101 in the housing space 104 through the heat exchange plate, so that each battery cell 101 can work in a suitable temperature environment. At the same time, the heat exchange liquid in the heat exchange plate can also flow back to the external heat exchange component through another connecting component 30, thus realizing the circulation of heat exchange liquid between the housing space 104 and the outside world, while reducing the risk of the battery device 100 failing to seal.

[0064] According to the battery device 100 provided in the embodiments of this application, the connecting component 30 includes a first part 31 and a second part 32. The first part 31 and the mounting beam 11 are integrally formed. The second part 32 is connected to the end of the first part 31 that is away from the receiving space 104. The integrally formed first part 31 and the mounting beam 11 can improve the structural consistency between the connecting component 30 and the frame 10, reduce the installation of sealing components required for sealing the connecting component 30 and the frame 10, improve the sealing performance between the connecting component 30 and the frame 10, simplify the installation process of the connecting component 30, and improve the production efficiency of the battery device 100. At the same time, the split structure design of the second part 32 and the first part 31 allows the structure of the second part 32 to be customized according to different user needs, and then connected and assembled with the first part 31, thereby improving the applicability of the connecting component 30 and reducing the difficulty of maintenance, repair or replacement in subsequent use, resulting in higher overall reliability.

[0065] In some embodiments, the first portion 31 includes a first mouth body 311 through which a first connecting hole 312 is provided, at least a portion of the first mouth body 311 protrudes from the surface of the mounting beam 11 away from the receiving space 104, and the first connecting hole 312 passes through the first mouth body 311 and the mounting beam 11; the second portion 32 is connected to the first mouth body 311.

[0066] The first part 31 includes a first mouth body 311 and a first connecting hole 312. The first mouth body 311 is the structure of the first part 31 and is used to define the shape of the first part 31 at the end away from the receiving space 104. In these embodiments of the present application, the first mouth body 311 may be set as a cylinder, a rectangle or a prism.

[0067] The first connecting hole 312 is a space in the first part 31 for the flow of liquid or gas. In these embodiments of the present application, the first connecting hole 312 passes through the first nozzle body 311 and the mounting beam 11 to connect the receiving space 104 with the outside.

[0068] At least a portion of the first mouthpiece 311 protrudes from the surface of the mounting beam 11 away from the receiving space 104, and the second portion 32 is connected to the first mouthpiece 311. This means that the second portion 32 is connected to the portion of the first mouthpiece 311 that protrudes from the surface of the mounting beam 11 away from the receiving space 104. This helps to reduce the installation difficulty of the second portion 32, and allows the second portion 32 to be positioned with the first mouthpiece 311 by means of, but not limited to, fitting, splicing or plugging, and further realizes the connection between the two.

[0069] In some embodiments, the first part 31 further includes a second nozzle 313, at least a portion of which protrudes from the surface of the mounting beam 11 near the receiving space 104. A first connecting hole 312 passes through the first nozzle 311, the mounting beam 11, and the second nozzle 313. The second nozzle 313 is used to connect a heat exchange plate disposed in the receiving space 104.

[0070] The second nozzle 313 is provided with at least a portion protruding from the surface of the mounting beam 11 near the receiving space 104, meaning that the second nozzle 313 is disposed within the receiving space 104 and is used to connect with the heat exchange plate disposed within the receiving space 104.

[0071] It should be noted that in some embodiments, the second nozzle 313 can also be used to connect with the fire-fighting components in the receiving space 104, so that the connecting component 30 can also be used to introduce fire-fighting medium into the receiving space 104.

[0072] The first connecting hole 312 passes through the first mouth body 311, the mounting beam 11 and the second mouth body 313. That is to say, the first mouth body 311, the mounting beam 11 and the second mouth body 313 together form the first connecting hole 312 so that the accommodating space 104 can communicate with the outside through the first connecting hole 312.

[0073] At least a portion of the second nozzle 313 protrudes from the surface of the mounting beam 11 near the receiving space 104, which can reduce the difficulty of connecting the first part 31 to the heat exchange plate. By adjusting the orientation of the end of the second nozzle 313 near the receiving space 104, the second nozzle 313 can be directly connected to the heat exchange plate without the need for other adapters, so that the connecting assembly 30 can be adapted to water-cooled plates of different models and sizes, thus having wider applicability.

[0074] Meanwhile, the provision of the second nozzle 313 can improve the structural consistency between the connecting component 30 inside the battery device 100 and the frame 10, and improve the sealing performance between the connecting component 30 inside the battery device 100 and the frame 10.

[0075] In some embodiments, the second part 32 includes a third mouth body 321 through which a second connecting hole 322 is provided; one end of the third mouth body 321 is sleeved outside the first mouth body 311, and the first connecting hole 312 communicates with the second connecting hole 322.

[0076] The third mouthpiece 321 is a structural component of the second part 32, defining the shape of the second part 32. One end of the third mouthpiece 321 is connected to the end of the first mouthpiece 311 that is away from the receiving space 104. In these embodiments of the present application, the shape of the third mouthpiece 321 can be defined to match the first mouthpiece 311, that is, the third mouthpiece 321 can also be, but is not limited to, a cylinder, a rectangle or a prism.

[0077] The second connecting hole 322 is a space in the second part 32 for supplying liquid or gas flow. The second connecting hole 322 is provided through the third nozzle body 321 so that after one end of the third nozzle body 321 is connected to the first nozzle body 311, the second connecting hole 322 can communicate with the first connecting hole 312 and together they are used to connect the receiving space 104 with the outside.

[0078] One end of the third nozzle 321 is fitted over the first nozzle 311. In a possible implementation, the third nozzle 321 and the first nozzle 311 can be connected by a threaded connection. That is, both the first nozzle 311 and the second nozzle 311 are cylindrical. One end of the third nozzle 321 has an internal thread corresponding to the inner wall of the second connecting hole 322, and the first nozzle 311 has an external thread. The third nozzle 321 and the first nozzle 311 are threaded together. In some embodiments, the third nozzle 321 and the first nozzle 311 can also be inserted together, meaning the cross-sectional shape of the third nozzle 321 matches the cross-sectional shape of the first nozzle 311. One end of the third mouthpiece 321 is press-fitted with the first mouthpiece 311, and one end of the third mouthpiece 321 is inserted outside the first mouthpiece 311. The connection is achieved through the friction generated by the press-fit between the two. In some embodiments, the third mouthpiece 321 and the first mouthpiece 311 can also be welded together. By fitting one end of the third mouthpiece 321 outside the first mouthpiece 311, the two overlap in the thickness direction, thereby achieving pre-assembly of the third mouthpiece 321 and the first mouthpiece 311. Then, the overlapping part of the third mouthpiece 321 and the first mouthpiece 311 is welded and fixed along the circumference of the third mouthpiece 321 to improve the structural consistency between the second part 32 and the first part 31.

[0079] In some embodiments, a limiting part 314 is provided on the outer surface of the first mouthpiece 311 away from the first connecting hole 312, and the end of the third mouthpiece 321 near the first mouthpiece 311 cooperates with the limiting part 314.

[0080] The first nozzle body 311 has a limiting part 314 on its outer surface away from the first connecting hole 312. That is, the outer surface of the first nozzle body 311 is provided with a limiting part 314, wherein the limiting part 314 is used to limit the third nozzle body 321 when it is connected to the first nozzle body 311.

[0081] For example, when the third nozzle 321 is connected to the first nozzle 311 by plugging or sleeve welding, the limiting part 314 can be used to determine whether the pre-assembly of the third nozzle 321 and the first nozzle 311 is in place. That is, when the end of the third nozzle 321 close to the first nozzle 311 is engaged with the limiting part 314, the third nozzle 321 completes the connection or pre-assembly with the first nozzle 311.

[0082] The possible implementation of the cooperation between the third nozzle 321 and the limiting part 314 is that the limiting part 314 is a protruding structure that protrudes outward along the circumference of the first nozzle 311. In this case, when the end of the third nozzle 321 near the first nozzle 311 abuts against the limiting part 314, the cooperation between the third nozzle 321 and the limiting part 314 is realized. In some embodiments, the limiting part 314 can also be provided as a slot-type structure. When the third nozzle 321 is inserted into the first nozzle 311, the end of the third nozzle 321 near the first nozzle 311 can also be inserted into the limiting part 314, which is provided on the outer surface of the first nozzle 311 and is in the slot-type shape. Through the snap-fit ​​cooperation between the limiting part 314 and the third nozzle 321, the connection strength between the third nozzle 321 and the first nozzle 311 is further improved.

[0083] In some embodiments, the second portion 32 is welded to the first portion 31 to further increase the structural consistency between the second portion 32 and the first portion 31.

[0084] In these embodiments of the present application, the second part 32 and the first part 31 can be welded and fixed by laser welding. At the same time, since the diameter of the connecting component 30 is usually small, the laser welding of the second part 32 and the first part 31 can be achieved by outer ring welding, so as to reduce the requirements for the precision and control of laser welding.

[0085] In some embodiments, the frame 10 includes two horizontal beams 12, two vertical beams 13, and two diagonal beams 14 on the base plate 20. One horizontal beam 12 is connected between one end of the two vertical beams 13, and the two ends of the other horizontal beam 12 are respectively connected between the other ends of the two vertical beams 13 via the diagonal beams 14. The mounting beam 11 is at least one of the horizontal beams 12, vertical beams 13, and diagonal beams 14. That is, the mounting beam 11 can be any beam structure in the frame 10 structure, and the position of the mounting beam 11 can be freely selected according to the structure of the electrical equipment to improve the applicability of the battery device 100 to different electrical equipment.

[0086] In these embodiments of the present application, the mounting beam 11 is the front crossbeam of the frame 10.

[0087] In some embodiments, the battery device 100 further includes at least one connector 40, each connector 40 being integrally formed with the mounting beam 11.

[0088] The connector 40 is used to connect the battery cells 101 and the battery modules composed of battery cells 101 in the housing space 104 to the outside world, so as to realize the functions of charging and discharging, electrical signal transmission and management of battery cells 101 or battery modules.

[0089] Correspondingly, each joint 40 is integrally formed with the mounting beam 11, which also means that each joint 40 and the mounting beam 11 can be integrally formed by means of injection molding, die casting or 3D printing, etc.

[0090] In these embodiments of this application, by setting each connector 40 to be integrally formed with the mounting beam 11, the structural consistency between each connector 40 and the mounting beam 11 can be improved, the sealing surface between the installation position of the connector 40 and the mounting beam 11 can be reduced, and the overall sealing effect of the mounting beam 11 can be improved. At the same time, the integral forming of the connector 40 and the mounting beam 11 can also eliminate the installation process of the connector 40 and improve the production efficiency of the battery device 100.

[0091] In some embodiments, connector 40 may be, but is not limited to, a connector for connecting high voltage, a connector for connecting low voltage, or a PDU (Power Distribution Unit) connector. This allows the battery device 100 to connect to external components via different types of connectors 40 to achieve different functions, resulting in better reliability.

[0092] The high-voltage connector can be used to connect the battery cell 101 or battery module to high-voltage electrical equipment such as the drive motor and on-board charger to provide high-voltage power. The low-voltage connector can be used to connect to low-voltage electrical components such as the vehicle's control unit, sensors, lighting system, on-board computer, and battery management system to provide a stable low-voltage power supply. The PDU connector is used to distribute the high-voltage power of the power battery to components such as the drive motor controller, on-board charger, DC-DC converter, and air conditioning compressor to achieve reasonable power distribution and meet the power needs of different components.

[0093] In some embodiments of this application, connector 40 may also be, but is not limited to, a sampling connector, a manual maintenance switch connector, a communication connector, a charging connector, etc.

[0094] Please refer to the following: Figures 1 to 10 In some embodiments, the battery device 100 further includes a grounding interface 50, which is integrally formed with the mounting beam 11.

[0095] Correspondingly, the grounding interface 50 and the mounting beam 11 are integrally formed, which also means that the grounding interface 50 and the mounting beam 11 can be integrally formed by means of injection molding, die casting or 3D printing, etc.

[0096] In some embodiments of this application, the mounting beam 11 can be made of plastic material and integrally injection molded with the aforementioned connecting component 30, connector 40 and other components. By converting the metal mounting beam 11 to plastic material, the weight of the battery device 100 can be greatly reduced and the weight energy density of the battery device 100 can be increased.

[0097] Based on this, in these embodiments of the present application, an integrally injection-molded grounding interface 50 can be provided in the mounting beam 11 to ground the electrical components in the battery device 100, thereby improving the reliability of the battery device 100. It is understood that the grounding interface 50 itself is conductive, and its material can be selected as a conductive metal material. It is pre-embedded in the molding mold of the mounting beam 11 and integrally injection-molded with the mounting beam 11 during the molding process.

[0098] In other words, in these embodiments of this application, the mounting beam 11 is a plastic part, and the grounding interface 50 is a conductive material part, with the grounding interface 50 integrally injection molded with the mounting beam 11. In this way, grounding can be provided to the electrical equipment through the grounding interface 50, further improving the reliability of the battery device 100. At the same time, the integration of the grounding interface 50 into the mounting beam 11 through integral injection molding also improves the structural consistency between the grounding interface 50 and the mounting beam 11, reducing the requirements for airtight installation.

[0099] In some embodiments, the grounding interface 50 includes a connector 51 and a conductive plate 52, the conductive plate 52 being connected to the connector 51 and being at least partially exposed on the surface of the mounting beam 11 near the base plate 20.

[0100] The function of the plug 51 is to connect the electrical equipment that needs to be grounded; the function of the conductive plate 52 is to extend the ground of the plug 51 (the electrical equipment connected to the plug 51) so that the electrical equipment has functions such as leakage protection and electrostatic protection.

[0101] The conductive sheet 52 is connected to the plug 51. A possible implementation is that the conductive sheet 52 and the plug 51 are fixedly connected by welding or integral molding to enhance the structural stability between the conductive sheet 52 and the plug 51 and reduce the risk of the electrical equipment failing to ground when the two break during vibration, shaking or collision.

[0102] At least a portion of the conductive sheet 52 is exposed on the surface of the mounting beam 11 near the base plate 20 to simplify the installation of the grounding interface 50, allowing the conductive sheet 52 to naturally ground the grounding interface 50 during the installation of the mounting beam 11 and the base plate 20. In other words, because at least a portion of the conductive sheet 52 is exposed on the surface of the mounting beam 11 near the base plate 20, when the mounting beam 11 and the base plate 20 are assembled and connected, the surface of the mounting beam 11 near the base plate 20 contacts and engages with the base plate 20. Simultaneously, because at least a portion of the conductive sheet 52 is exposed on the surface of the mounting beam 11 near the base plate 20, the conductive sheet 52 can naturally contact the base plate 20 to achieve grounding of the grounding interface 50.

[0103] In some embodiments, the battery device 100 further includes at least one locking attachment 60, which is integrally formed with the mounting beam 11; the locking attachment 60 is used to lock onto the electrical equipment.

[0104] The function of the locking accessory 60 is to lock the battery device 100 (battery unit) to the electrical equipment, thereby improving the structural stability between the battery device and the electrical equipment. The locking accessory 60 is integrally formed with the mounting beam 11, which also reduces the mounting sealing surface area of ​​the locking accessory 60 when it is installed on the mounting beam 11. This integral forming method improves the structural consistency between the various locking accessories 60 and the mounting beam 11, thus enhancing the structural stability after the battery device and the electrical equipment are locked together.

[0105] Correspondingly, the lock accessory 60 and the mounting beam 11 are integrally formed structures, which also means that the lock accessory 60 and the mounting beam 11 can be integrally formed by means of injection molding, die casting or 3D printing, etc.

[0106] In these embodiments of the present application, the number of lock attachments 60 may be two, three, four or five, and the position and number of lock attachments 60 may be selected according to the locking strength required by the battery device 100 and the specific structure of the electrical equipment.

[0107] In some embodiments of this application, the lock attachment 60 can be integrally formed with the mounting beam 11 during the forming process by pre-embedded skeleton. The skeleton of the lock attachment 60 can be a metal skeleton to give the lock attachment 60 higher structural strength, thereby improving the structural stability between the battery device and the electrical equipment after it is locked with the electrical equipment.

[0108] In some embodiments, a sealant (not shown) is provided circumferentially on the mounting beam 11. This design further enhances the sealing strength between the periphery of the mounting beam 11 and other components, thereby further improving the sealing performance of the battery device 100.

[0109] For example, the description will be based on the case where the cross-section of the frame 10 is hexagonal and the mounting beam 11 is a front crossbeam.

[0110] During the production and processing of the frame 10, after the two horizontal beams 12, two vertical beams 13, and two diagonal beams 14 are formed respectively, these beam structures need to be assembled to form a frame 10 structure with a hexagonal cross-section. The front horizontal beam can be connected and locked to the left and right diagonal beams using screws, bolts, or other connectors. In addition, a layer of sealant can be applied to the connection surfaces of the front horizontal beam and the left diagonal beam, as well as the connection surfaces of the front horizontal beam and the right diagonal beam, to further improve the sealing performance between the front horizontal beam and the left and right diagonal beams. Correspondingly, when the frame 10 is connected and locked to the base plate 20 and the upper box 1022, sealant can also be applied to the connection surfaces of the frame 10 corresponding to the connection and locking with the base plate 20 and the upper box 1022 to further increase the overall sealing performance of the box 102.

[0111] In this way, the mounting beam 11 is circumferentially covered with sealant to improve the sealing strength between the periphery of the mounting beam 11 and other components, thereby further improving the sealing performance of the battery device 100.

[0112] This application provides an electrical device that includes a battery device as provided in any of the foregoing embodiments, the battery device being used to provide electrical energy.

[0113] Based on some embodiments of this application, please refer to the following: Figures 1 to 10 This application provides a battery device 100, which includes a frame 10, a base plate 20, a connecting component 30, a connector 40, a grounding interface 50, and a locking accessory 60. The frame 10 includes a mounting beam 11. The base plate 20 is connected to the frame 10 and forms a receiving space 104 with the frame 10. The connecting component 30 includes a first part 31 and a second part 32. The first part 31 and the mounting beam 11 are integrally injection molded. The second part 32 is connected to the end of the first part 31 that is away from the receiving space 104. The first part 31 and the second part 32 are configured to jointly connect the receiving space 104 to the outside.

[0114] In some embodiments, the aforementioned connecting component 30, connector 40, grounding interface 50 and locking accessory 60 may be integrally injection molded with the mounting beam 11 to improve the structural consistency of these components in the battery device 100 and reduce the number of sealing surfaces on the battery device 100, thereby reducing the risk of sealing failure of the battery device 100.

[0115] In the connecting component 30, the first part 31 includes a first nozzle 311, a second nozzle 313, and a first connecting hole 312. The first connecting hole 312 penetrates the first nozzle 311, the second nozzle 313, and the mounting beam 11 to connect the receiving space 104 with the outside. At least a portion of the first nozzle 311 protrudes from the surface of the mounting beam 11 away from the receiving space 104 to reduce the installation difficulty of the second part 32. At least a portion of the second nozzle 313 protrudes from the surface of the mounting beam 11 near the receiving space 104 to reduce the connection difficulty between the first part 31 and the heat exchange plate.

[0116] The connector 40 can be a connector for connecting high voltage, a connector for connecting low voltage, or a PDU connector, so that the battery device 100 can be connected to relevant external components through different types of connectors 40 to achieve different functions and improve reliability.

[0117] In some embodiments of this application, the aforementioned mounting beam 11 can also be made of plastic, which can greatly reduce the weight of the battery device 100 and increase the weight energy density of the battery device 100. The grounding interface 50 is used to ground the electrical equipment so that the electrical equipment has functions such as leakage protection and electrostatic protection.

[0118] The locking accessory 60 serves to secure the battery device 100 to the electrical equipment, thereby enhancing the structural stability between them. The locking accessory 60 can be integrally injection molded with the mounting beam 11 during its molding process using a pre-embedded frame. The frame of the locking accessory 60 can be a metal frame to provide higher structural strength, thus improving the structural stability between the battery device 100 and the electrical equipment after locking.

[0119] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0120] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery device, characterized in that, include: The frame, including the mounting beam; The base plate is connected to the frame and forms an accommodating space with the frame; The connecting component includes a first part and a second part. The first part and the mounting beam are integrally formed. The second part is connected to the end of the first part away from the receiving space. The first part and the second part are configured to jointly connect the receiving space with the outside.

2. The battery device according to claim 1, characterized in that, The first part includes a first nozzle body through which a first connecting hole is provided, at least a portion of the first nozzle body protruding from the surface of the mounting beam opposite to the receiving space, and the first connecting hole passing through the first nozzle body and the mounting beam; The second part is connected to the first mouth body.

3. The battery device according to claim 2, characterized in that, The first part further includes a second nozzle, at least a portion of which protrudes from the surface of the mounting beam near the receiving space, and the first connecting hole penetrates the first nozzle, the mounting beam, and the second nozzle. The second nozzle is used to connect to the heat exchange plate disposed in the receiving space.

4. The battery device according to claim 2, characterized in that, The second part includes a third nozzle body through which a second connecting hole is provided; One end of the third nozzle is fitted onto the outside of the first nozzle, and the first connecting hole is connected to the second connecting hole.

5. The battery device according to claim 4, characterized in that, The first nozzle body has a limiting part on its outer surface away from the first connecting hole, and the end of the third nozzle body near the first nozzle body cooperates with the limiting part.

6. The battery device according to any one of claims 1 to 5, characterized in that, The second part is welded to the first part.

7. The battery device according to any one of claims 1 to 5, characterized in that, The frame includes two horizontal beams, two vertical beams and two diagonal beams disposed on the base plate. One of the horizontal beams is connected between one end of the two vertical beams, and the two ends of the other horizontal beam are respectively connected between the other ends of the two vertical beams through the diagonal beams. The mounting beam is at least one of the horizontal beams, the vertical beams and the diagonal beams.

8. The battery device according to claim 1, characterized in that, The battery device also includes at least one connector, each of which is integrally injection molded with the mounting beam.

9. The battery device according to claim 1, characterized in that, The battery device also includes a grounding interface, which is integrally formed with the mounting beam.

10. The battery device according to claim 9, characterized in that, The grounding interface includes a connector and a conductive plate, the conductive plate being connected to the connector and being at least partially exposed on the surface of the mounting beam near the base plate.

11. The battery device according to claim 1, characterized in that, The battery device also includes at least one locking accessory, which is integrally formed with the mounting beam; The locking accessory is used to lock onto electrical equipment.

12. The battery device according to claim 1, characterized in that, The mounting beam is coated with sealant around its circumference.

13. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1 to 12, the battery device being used to provide electrical energy.

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