Battery device and electric equipment

Abstract

The utility model relates to a battery device and electric equipment. In the connection of a first connecting piece and a second connecting piece, one end of the first connecting piece can penetrate through a socket to be inserted into a cavity and is fixed in the cavity; and then the second connecting piece is connected to the second component, so that electric connection between the first connecting piece and the second connecting piece is completed. And one end of the first connecting piece is fixed in the cavity in the inserting manner, so that the connection operation of the first connecting piece is simple, and the connection convenience is improved. And meanwhile, the first connecting piece is fixed in an inserting manner, so that the amount of the insulating layer required to be removed due to connection on the first connecting piece is more accurate and controllable, the introduction of insulating parts such as a heat-shrinkable sleeve can be reduced, and the occupation of a connecting space can be reduced.

Description

Technical Field

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

[0002] As the power and range requirements of new energy vehicles continue to increase, the voltage and current of power batteries are also increasing accordingly, posing a more stringent performance challenge to high-voltage connectors. To this end, aluminum busbars are commonly used as high-voltage connectors. However, the connection method between high-voltage connectors and other components makes the connection process complex and the connection space required larger. Utility Model Content

[0003] Based on this, it is necessary to provide a battery device and an electrical device with simple connection operation, which is conducive to improving the convenience of connection; at the same time, reducing the space occupied by the connection.

[0004] In the first aspect, the present application provides a battery device, which includes: a first connector; a second connector and an adapter assembly, wherein the second connector is electrically connected to the first connector through the adapter assembly; wherein the adapter assembly includes a first component and a second component connected to the first component, the first component has a cavity therein, and a socket connected to the cavity is provided on the surface of the first component, part of the first connector is inserted into the socket and fixed in the cavity, and the second connector is connected to the second component.

[0005] In the battery device described above, when connecting the first connector and the second connector, one end of the first connector can be inserted into the cavity through the socket and fixed in the cavity; then the second connector can be connected to the second component to complete the electrical connection between the first connector and the second connector. Since one end of the first connector is fixed in the cavity by plugging, the connection operation of the first connector is simple, which is conducive to improving the convenience of connection. At the same time, since the first connector is fixed by plugging, the amount of insulation layer on the first connector that needs to be removed due to the connection is more precise and controllable. This can reduce the introduction of insulating components such as heat shrink tubing, which is conducive to reducing the occupied connection space.

[0006] In some embodiments, the first component includes a first end and a second end disposed along the insertion direction of the first connector. The first end is connected to the second component, and the socket is provided on the end surface of the second end. This design allows the connection operations of the first connector and the second connector to be separated as much as possible, thereby reducing the possibility of mutual interference during the connection process.

[0007] In some embodiments, the first component includes at least three connecting side portions, all of which are connected end to end to form a cavity. The ends of the connecting side portions on the same side enclose the socket, and the ends of the connecting side portions remote from the socket are connected to the second component. This design, with the introduction of at least three connecting side portions, facilitates the formation of the cavity and the socket.

[0008] In some embodiments, the surface of the first component is further provided with a first hole communicating with the cavity, the first hole being used for passing the fastener through. Such a design and introduction of the first hole facilitate the fastener to stably fix the first connecting member in the cavity, thereby improving the connection strength.

[0009] In some embodiments, the number of first holes is at least two, and at least some of the first holes are spaced apart along the plugging direction of the first connector. Introducing at least two first holes in this design increases the number of connection positions in the plugging direction, further improving the connection strength between the first connector and the first component.

[0010] In some embodiments, at least one end of the second component extends beyond the first component along a predetermined direction. The predetermined direction, the insertion direction of the first component, and the thickness direction of the first component intersect with each other and are not coplanar. This design appropriately extends the dimension of the second component in the predetermined direction, thereby improving the stability of the electrical connection of the second connector.

[0011] In some embodiments, the second component includes a transition portion and a fixed portion. The transition portion is connected to the first component via the fixed portion, and the surface of the transition portion to which the second connector connects is oriented to intersect the thickness direction of the first component. This design allows the surface orientation of the transition portion to be adjusted by the fixed portion to adapt to the relative spatial positions of the first and second connectors, thereby improving connection flexibility.

[0012] In some embodiments, the fixing portion extends in a protruding manner along the thickness direction of the first component, and the transition portion extends in a protruding manner along the insertion direction of the first component. In this way, the structures of the fixing portion and the transition portion are specifically designed to facilitate the fixed connection between the second connector and the transition portion.

[0013] In some embodiments, the second component is provided with a second hole for passing the fastener through. Such a design and introduction of the second hole facilitate the second connecting member to be fixed to the second component by the fastener, which is conducive to improving the connection strength.

[0014] In some embodiments, both the first component and the second component are made of metal, and the hardness of the first component is less than that of the second component. This design, where the hardness of the second component is greater than that of the first component, helps reduce the likelihood of creep due to stress at the connection between the second component and the second connector, thereby improving the quality of the connection.

[0015] In a second aspect, the present application provides an electrical device, which includes any one of the battery devices described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a vehicle provided for some embodiments of the present application.

[0017] Figure 2 An exploded view of a battery device provided in some embodiments of the present application.

[0018] Figure 3 Diagrams showing the cooperation between an adapter assembly without a first hole and a second hole and a first connecting member and a second connecting member, respectively, provided in some embodiments of the present application.

[0019] Figure 4 for Figure 3 Structural cross-sectional view of the adapter assembly along the AA direction.

[0020] Figure 5 A structural diagram of an adapter assembly provided in some embodiments of the present application in which the socket is distributed adjacent to the second component.

[0021] Figure 6 A structural diagram of an adapter assembly with two cavities provided in some embodiments of the present application.

[0022] Figure 7 Diagrams showing the coordination of the adapter assembly with the first holes distributed on the top surface and the first connecting member and the second connecting member, respectively, provided in some embodiments of the present application.

[0023] Figure 8 Diagrams showing the coordination of the adapter assembly with first holes distributed on the side and the first connecting member and the second connecting member respectively provided in some embodiments of the present application.

[0024] Figure 9 The structure of the adapter assembly without the second hole provided in some embodiments of the present application Figure 1 .

[0025] Figure 10 The structure of the adapter assembly without the second hole provided in some embodiments of the present application Figure 2 .

[0026] Figure 11 The structure of the adapter assembly with the second hole provided in some embodiments of the present application Figure 1 .

[0027] Figure 12 The structure of the adapter assembly with the second hole provided in some embodiments of the present application Figure 2 .

[0028] Description of main component symbols:

[0029] 1000, vehicle; 200, controller; 300, motor; 100, battery device; 10, battery cell; 20, housing; 21, first part; 22, second part; 30, first connector; 40, second connector; 50, adapter assembly; 51, first component; 51a, first end; 51b, second end; 511, cavity; 512, socket; 513, first hole; 514, connecting side; 52, second component; 521, adapter part; 522, adapter surface; 523, second hole; 524, fixing part; X, plug-in direction; Y, preset direction; Z, thickness direction. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if the 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. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0033] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, 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 embodiment.

[0036] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0037] As the power and range requirements of new energy vehicles continue to increase, the voltage and current of power batteries are also increasing accordingly, posing more stringent challenges to the performance of high-voltage connectors. For this reason, aluminum busbars are typically used as high-voltage connectors. When connecting the aluminum busbars to other components, such as the connection ends of electrical components, nickel sheets are usually pre-soldered to the aluminum busbars due to their material properties, and then connected to the connection ends of the electrical components using the nickel sheets. Before connection, to facilitate welding between the nickel sheets and the aluminum busbars, the insulation layer on the aluminum busbars needs to be removed. To facilitate welding operations and prevent the insulation layer from melting during welding, the size of the removed insulation layer is larger than the size of the aluminum busbar required to connect to the nickel sheet. After connection, to maintain insulation, the exposed aluminum busbars need to be covered with heat shrink tubing.

[0038] However, this connection method not only complicates the connection process of the aluminum busbar and brings inconvenience to the connection operation, but also the heat shrink tubing wrapped around the aluminum busbar easily overlaps with the remaining insulation layer on the aluminum busbar, resulting in an increase in the space occupied by the connection.

[0039] Based on this, in order to address the problems of complex electrical connection processes and increased space occupied by the connection in traditional battery devices, the present application provides a battery device. When connecting the first connector and the second connector, one end of the first connector can be inserted into the cavity through the socket and fixed in the cavity; then the second connector is connected to the second component to complete the electrical connection between the first connector and the second connector. Since one end of the first connector is fixed in the cavity by plugging, the connection operation of the first connector is simple, which is conducive to improving the convenience of connection. At the same time, since the first connector is fixed by plugging, the amount of insulation layer on the first connector that needs to be removed due to the connection is more accurate and controllable compared to the traditional direct welding method. This can reduce the introduction of insulating components such as heat shrink tubing, which is conducive to reducing the occupation of the connection space.

[0040] The battery cells disclosed in the embodiments of the present application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power supply system comprising the battery cells and battery devices disclosed in the present application can be used to form the electrical device.

[0041] The present invention provides an electrical device that uses a battery device as a power source. The electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0042] 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.

[0043] Please refer to Figure 1 , Figure 1 A schematic structural diagram 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. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000. 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 further 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 starting, navigating and operating power requirements of the vehicle 1000 during driving.

[0044] In some embodiments of the present application, the battery device 100 can serve not only as an operating power source for the vehicle 1000 , but also 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 .

[0045] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery device 100 provided in some embodiments of the present application. The battery device 100 includes a housing 20 and a battery cell 10, with the battery cell 10 housed within the housing 20. The housing 20 provides a storage space for the battery cell 10 and can have various structures. In some embodiments, the housing 20 can include a first portion 21 and a second portion 22, which overlap each other and together define a storage space for the battery cell 10. The second portion 22 can be a hollow structure with one end open. The first portion 21 can be a plate-like structure, with the first portion 21 overlapping the open side of the second portion 22, so that the first portion 21 and the second portion 22 together define a storage space. Alternatively, the first portion 21 and the second portion 22 can each be a hollow structure with one end open, with the open side of the first portion 21 overlapping the open side of the second portion 22. Of course, the housing 20 formed by the first portion 21 and the second portion 22 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0046] In the battery device 100, there may be multiple battery cells 10, and the multiple battery cells 10 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 10. The multiple battery cells 10 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery device 10 may be housed within the housing 20. Of course, the battery device 100 may also be a battery module formed by first connecting multiple battery cells 10 in series, in parallel, or in a hybrid connection, and then the multiple battery device 100 modules are further connected in series, in parallel, or in a hybrid connection to form an entire battery device, and then housed within the housing 20. The battery device 100 may also include other structures, for example, the battery device 100 may further include a busbar component for electrically connecting the multiple battery cells 10.

[0047] Each battery cell 10 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 10 can be cylindrical, flat, rectangular, or in other shapes.

[0048] According to some embodiments of this application, please refer to Figure 3 and Figure 4 The present application provides a battery device 100, which includes: a first connector 30; a second connector 40 and an adapter assembly 50, wherein the second connector 40 is electrically connected to the first connector 30 through the adapter assembly 50; wherein the adapter assembly 50 includes a first component 51 and a second component 52 connected to the first component 51, wherein the first component 51 has a cavity 511 therein, and a socket 512 communicating with the cavity 511 is provided on the surface of the first component 51, a portion of the first connector 30 is inserted into the socket 512 and fixed in the cavity 511, and the second connector 40 is connected to the second component 52.

[0049] The first connector 30 and the second connector 40 refer to components in the battery device 100 that require electrical connection. For example, the first connector 30 may be a component connected to the battery cell 10 in the battery device 100, such as a high-voltage aluminum bar, and the second connector 40 may be a component connected to an electrical component in the battery device 100. The electrical component may be, but is not limited to, a relay, a fuse, a controller, etc. Of course, in other embodiments, the first connector 30 and the second connector 40 may both be components connected to the battery cell 10, such as a copper bar or an aluminum bar connected to the battery cell 10; or the first connector 30 and the second connector 40 may both be components connected to an electrical component.

[0050] The materials of the first connector 30 and the second connector 40 can be different or the same. For example, the materials of both can be, but are not limited to, copper, aluminum, etc. At the same time, the materials of the first connector 30 and the first component 51 can be the same or different; the materials of the second connector 40 and the second component 52 can be the same or different. If the first connector 30 is welded to the second connector 40 through the adapter assembly 50, the materials of the first connector 30 and the first component 51 can be the same, and the materials of the second connector 40 and the second component 52 can be the same. In this way, the quality of welding between the same materials will be better. For example, the materials of the first connector 30 and the first component 51 are both aluminum, and the materials of the second connector 40 and the second component 52 are both copper or nickel.

[0051] During electrical connection, the first connector 30 passes through the socket 512 and is inserted into and fixed in the cavity 511, so that one end of the first connector 30 is enclosed in the first component 51, enhancing the connection strength between the two and providing effective support for the first connector 30. After the first connector 30 is inserted into the cavity 511, it can be fixed in a variety of ways, including but not limited to bolting, welding, and bonding. When the first connector 30 is fixed by bolts or other means, a hole can be opened in the first component 51 so that the bolt can pass through the hole to fix the first connector 30; when the first connector 30 is fixed by welding or other means, the surface of the first component 51 can be without a hole, so that welding is performed between the socket 512 and the first connector 30.

[0052] When the first connector 30 is inserted into the cavity 511, the first component 51 can be squeezed and deformed, so that the cavity wall of the cavity 511 is squeezed on the first connector 30 due to deformation, thereby further increasing the connection strength between the first connector 30 and the first component 51. The position of the socket 512 on the first component 51 can be designed in many ways. For example, the socket 512 can be set on the end surface of the first component 51 away from the second component 52. For details, please refer to Figure 4 Alternatively, the socket 512 may also be provided on the side of the first member 51 and the second member 52 adjacent to each other, for details, see Figure 5 Meanwhile, the depth of the cavity 511 along the insertion mode of the first connector 30 may be determined according to actual process requirements. For example, the depth of the cavity 511 may be, but is not limited to, 40 mm to 60 mm.

[0053] It should also be noted that there are also various ways to connect the second connecting member 40 and the second component 52, such as: the second connecting member 40 is fixed to the surface of the second component 52 by bolt connection, clamping, riveting, welding, etc.; or, a cavity structure is also provided inside the second component 52, and the second connecting member 40 is plugged into the inside of the second component 52. For details, please refer to Figure 6At the same time, the first component 51 and the second component 52 can be designed as a combined structure, for example, the two can be combined and fixed by welding, clamping, bolting, bonding, etc.; or the first component 51 and the second component 52 can be designed as an integrated structure, for example, the two can be integrally formed by injection, die-casting, 3D printing, etc.

[0054] This design simplifies the connection of the first connector 30 and improves connection convenience. Furthermore, because the first connector 30 is fixed by plugging, the amount of insulation removed from the first connector 30 for connection is more precise and controllable. This reduces the need for insulating components such as heat shrink tubing, which helps reduce the space occupied by the connection.

[0055] According to some embodiments of the present application, optionally, please refer to Figure 3 and Figure 4 The first component 51 includes a first end 51a and a second end 51b distributed along the plugging direction X of the first connector 30. The first end 51a is connected to the second component 52, and the socket 512 is provided on the end surface of the second end 51b.

[0056] The first end 51a and the second end 51b refer to the two ends of the first component 51 along the plug-in direction X of the first connector 30, respectively. The first end 51a is connected to the second component 52, and the second end 51b is used for the first connector 30 to be plugged in. During the electrical connection process, the first connector 30 is plugged into the cavity 511 at one end of the first component 51 away from the second component 52, so that the connection operations of the first connector 30 and the second connector 40 are separated as much as possible, thereby facilitating the quick connection between the two. Among them, the shape of the socket 512 can be designed in a variety of ways, such as: it can be but not limited to circular, elliptical, square, pentagonal, etc. At the same time, the shape of the first component 51 can also be designed in a variety of ways, such as: it can be but not limited to circular, elliptical, square, pentagonal, etc.

[0057] Such a design allows the connection operations of the first connection member 30 and the second connection member 40 to be separated as much as possible, thereby reducing the possibility of mutual interference during the connection process.

[0058] According to some embodiments of the present application, optionally, please refer to Figure 4 The first component 51 includes at least three connecting side portions 514, all of which are connected end to end and surround a cavity 511, and one end of each connecting side portion 514 located on the same side encloses a socket 512, and one end of each connecting side portion 514 away from the socket 512 is connected to the second component 52.

[0059] At least three connecting side portions 514 are connected end to end to form a cavity 511. Each connecting side portion 514 also forms a socket 512 at the same end, and the other end is connected to the second component 52. It should be noted that when each connecting side portion 514 is connected to the second component 52, the end of the cavity 511 away from the socket 512 can be open or closed by the second component 52 or an additional component.

[0060] The number of connecting side portions 514 can be three, four, five, or more. When there are four connecting side portions 514, each connecting side portion 514 can be surrounded to form a rectangular parallelepiped or cube-shaped structure. When the first connector 30 is inserted into the cavity 511, the two opposing connecting side portions 514 can be squeezed, causing the two connecting side portions 514 to deform toward the first connector 30 and squeeze the first connector 30, thereby improving the stability of the connection between the first connector 30 and the first component 51.

[0061] With such a design, at least three connecting side portions 514 are introduced to facilitate the formation of the cavity 511 and the socket 512 .

[0062] According to some embodiments of the present application, optionally, please refer to Figure 7 The surface of the first component 51 is further provided with a first hole 513 communicating with the cavity 511 , and the first hole 513 is used for a fastener to pass through.

[0063] When the first connecting member 30 is inserted into the cavity 511, the fastener can be inserted into the first hole 513 to fix the first connecting member 30 in the cavity 511. The first hole 513 can be a threaded hole or a non-threaded hole. When the first hole 513 is a threaded hole, the fastener can be a bolt, which is connected by thread so that one end of the fastener abuts against the first connecting member 30. When the first hole 513 is a non-threaded hole, the first hole 513 can pass through the first component 51, so that the fastener can pass through the first component 51 and the first connecting member 30 through the first hole 513; then, the fastener can be fixed to the first component 51 by using a nut, riveting or pinning method to achieve the fixation of the first connecting member 30.

[0064] To facilitate the locking of the first connecting member 30, the first hole 513 and the socket 512 can be distributed on different sides of the first component 51. For example, the socket 512 can be set on an end surface of the first component 51 away from the second component 52, and the first hole 513 is set on the side adjacent to the first component 51 and the second component 52; or, the socket 512 is set on the side adjacent to the first component 51 and the second component 52, and the first hole 513 is set on the end surface of the first component 51 away from the second component 52.

[0065] Specifically, in some examples, the first component 51 includes at least three connecting side portions 514, all of which are connected end to end and surround the cavity 511, one end of each connecting side portion 514 is enclosed to form a socket 512, and one end of each connecting side portion 514 away from the socket 512 is connected to the second component 52, and the first hole 513 is provided on at least one connecting side portion 514. For details, please refer to Figure 7 and Figure 8 .

[0066] With this design, the first hole 513 is introduced, which facilitates the fastener to stably fix the first connecting member 30 in the cavity 511, thereby improving the connection strength.

[0067] According to some embodiments of the present application, optionally, please refer to Figure 7 The number of the first holes 513 is at least two, and at least some of the first holes 513 are spaced apart along the plugging direction X of the first connector 30 .

[0068] It can be seen that setting at least part of the first holes 513 along the plugging direction X can increase the connection positions of the first connector 30 along the plugging direction X, effectively reduce the probability of the first connector 30 falling off from the socket 512 along the plugging direction X, and improve the stability of the connection.

[0069] For some examples, see Figure 7 The first component 51 includes at least three connecting side portions 514, all of which are connected end to end and surround the cavity 511, and one end of each connecting side portion 514 is enclosed to form a socket 512. At least two first holes 513 are provided on the same connecting side portion 514 along the plug-in direction X. Of course, in other embodiments, both adjacent connecting side portions 514 are provided with a first hole 513. Specifically, in some examples, the connecting side portion 514 located in the thickness direction Z of the first component 51 is provided with two first holes 513, each first hole 513 penetrates the first component 51 along the thickness direction Z, and the two first holes 513 are spaced apart along the plug-in direction X.

[0070] In addition, one end of each connecting side portion 514 close to the socket 512 may constitute the second end 51 b of the first component 51 , and one end of each connecting side portion 514 away from the socket 512 may constitute the first end 51 a of the first component 51 .

[0071] With such a design, the introduction of at least two first holes 513 can increase the number of connection positions in the plugging direction X, further improving the connection strength between the first connector 30 and the first component 51 .

[0072] According to some embodiments of the present application, optionally, please refer to Figure 9At least one end of the second component 52 extends beyond the first component 51 along the preset direction Y, wherein the preset direction Y, the plugging direction X of the first component 51 and the thickness direction Z of the first component 51 intersect each other and are not coplanar.

[0073] As can be seen, during the connection process, the first connector 30 is inserted into the cavity 511 along the insertion direction X, and the second connector 40 is placed on the second component 52 in a predetermined direction Y that intersects the insertion direction X and is secured. Because the second component 52 extends beyond the first component 51 in the predetermined direction Y, the extent of the second component 52 in the predetermined direction Y can be appropriately extended, making the connection between the second connector 40 and the second component 52 less susceptible to detachment, thereby improving the stability of the electrical connection of the second connector 40. In some specific examples, the predetermined direction Y, the insertion direction X, and the thickness direction Z are mutually perpendicular.

[0074] In addition, in some examples, the outer surface of the second component 52 includes a transition surface 522, and the second connector 40 is fixed on the transition surface 522. It can be seen that the second connector 40 is fixed to the outer surface of the second component 52, for example: the second connector 40 is supported on the transition surface 522 of the second component 52, and then the second connector 40 is connected to the second component 52. This not only effectively supports the second connector 40, but also stably fixes it to the second component 52. There are many connection methods, such as but not limited to bolt connection, clamping, riveting, welding, etc. At the same time, the transition surface 522 can also extend beyond the first component 51 along the preset direction Y at least at one end in the preset direction Y to increase the area of the second connector 40 connected to the second component 52.

[0075] With such a design, the dimension of the second component 52 in the preset direction Y can be appropriately extended, thereby improving the stability of the electrical connection of the second connecting member 40 .

[0076] According to some embodiments of the present application, optionally, please refer to Figure 10 The second component 52 includes a transition portion 521 and a fixing portion 524 . The transition portion 521 is connected to the first component 51 through the fixing portion 524 , and the surface of the transition portion 521 for connecting the second connecting member 40 is oriented to intersect with the thickness direction Z of the first component 51 .

[0077] As can be seen, the transition portion 521 is connected to the first component 51 via the fixing portion 524. The orientation of the transition portion 521 can be changed to facilitate the connection between the first connector 30 and the second connector 40 in different orientations. When the transition portion 521 includes a transition surface 522, the transition surface 522 is connected to the second connector 40, and the orientation of the transition surface 522 intersects the thickness direction Z of the first component 51.

[0078] In some embodiments, the fixed portion 524 is disposed at an angle relative to the transition portion 521, and the fixed portion 524 is disposed at an angle to the first component 51, and the angle between the fixed portion 524 and the transition portion 521 is different from the angle between the fixed portion 524 and the first component 51. The connection between the fixed portion 524 and the transition portion 521, and between the fixed portion 524 and the first component 51, is approximately L-shaped. This facilitates changing the orientation of the transition surface 522 on the transition portion 521 to accommodate connections between the first connector 30 and the second connector 40 in different orientations, facilitating flexible placement of the first connector 30 in the battery device 100. Both the fixed portion 524 and the transition portion 521 may be plate-shaped structures.

[0079] For some specific examples, please refer to Figure 10 The fixing portion 524 extends in a raised position along the thickness direction Z of the first component 51, and the transition portion 521 extends in a raised position along the insertion direction X of the first component 51. It can be seen that the fixing portion 524 is bent and erected relative to the first component 51 along the thickness direction Z, and the transition portion 521 is bent relative to the fixing portion 524 along the insertion direction X. There are various ways to connect the fixing portion 524 to the first component 51, such as clamping, riveting, welding, and bolting. Thus, the specific design of the structures of the fixing portion 524 and the transition portion 521 facilitates the fixed connection between the second connector 40 and the transition portion 521.

[0080] With such a design, the surface orientation of the transition portion 521 is set through the fixing portion 524 to adapt to the relative spatial position of the first connecting member 30 and the second connecting member 40, thereby improving the flexibility of the connection.

[0081] According to some embodiments of the present application, optionally, please refer to Figure 11 and Figure 12 The second component 52 is provided with a second hole 523 for a fastener to pass through.

[0082] It can be seen that during the connection process, the second connecting member 40 is placed on the second component 52, and the fastener is inserted into the second hole 523, so that the second connecting member 40 is fixed to the second component 52. The second hole 523 can be a threaded hole or a non-threaded hole. When the second hole 523 is a threaded hole, the fastener can be a bolt that passes through the second connecting member 40 and is screwed into the second hole 523, so that the flange end of the fastener abuts against the second component 52. When the second hole 523 is a non-threaded hole, the second hole 523 can pass through the second component 52, so that the fastener can pass through the second component 52 and the second connecting member 40 through the second hole 523; then, the fastener can be fixed to the second component 52 using nuts, rivets, or pins to achieve the fixation of the second connecting member 40.

[0083] The number of the second hole 523 can be one or more. When the number of the second hole 523 is more than one, the second holes 523 can be distributed on the second component 52 at intervals.

[0084] With such a design, the second hole 523 is introduced, which facilitates the second connecting member 40 to be fixed to the second component 52 by fasteners, thereby improving the connection strength.

[0085] According to some embodiments of the present application, optionally, the first component 51 and the second component 52 are both made of metal materials, and the material hardness of the first component 51 is less than the material hardness of the second component 52 .

[0086] As can be seen, the adapter assembly 50 of this embodiment enables electrical connection between different materials. Specifically, in some examples, the first component 51 is made of aluminum, the second component 52 is made of copper, the first connector 30 is an aluminum busbar, and the second connector 40 is a copper terminal. This effectively connects the copper and aluminum.

[0087] With this design, the material hardness of the second component 52 is greater than that of the first component 51 , which helps to reduce the probability of creep due to stress at the connection portion between the second component 52 and the second connector 40 and improve the connection quality.

[0088] According to some embodiments of the present application, the present application provides an electric device, which includes the battery device 100 according to any one of the above items.

[0089] According to some embodiments of the present application, a battery device 100 is provided, comprising a first connector 30, a second connector 40, and an adapter assembly 50. The adapter assembly 50 comprises a first component 51 and a second component 52 connected to each other. The first component 51 has a cavity 511 therein, and a socket 512 is provided at one end thereof, communicating with the cavity 511. The first connector 30 is inserted into the cavity 511 through the socket 512, and the second connector 40 is fixed to the surface of the second component 52. The first component 51 may or may not be provided with a first hole 513; similarly, the second component 52 may or may not be provided with a second hole 523. Furthermore, the first connector 30 may be made of aluminum, the second connector 40 may be made of copper, the first component 51 may be made of aluminum, and the second component 52 may be made of copper.

[0090] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0091] The above-described embodiments merely represent several implementation methods of the present application. 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 a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A battery device, characterized in that: The battery device comprises: a first connecting member (30); a second connecting member (40) and a switching assembly (50), wherein the second connecting member (40) is electrically connected to the first connecting member (30) via the switching assembly (50); The adapter assembly (50) includes a first component (51) and a second component (52) connected to the first component (51); the first component (51) has a cavity (511) therein, and a socket (512) communicating with the cavity (511) is provided on the surface of the first component (51); a portion of the first connector (30) is inserted into the socket (512) and fixed in the cavity (511); and the second connector (40) is connected to the second component (52); The first component (51) and the second component (52) are both made of metal materials, and the material hardness of the first component (51) is smaller than the material hardness of the second component (52).

2. The battery device according to claim 1, wherein: The first component (51) comprises a first end (51a) and a second end (51b) distributed along the plugging direction (X) of the first connector (30); the first end (51a) is connected to the second component (52); and the socket (512) is provided on the end surface of the second end (51b).

3. The battery device according to claim 2, characterized in that The first component (51) includes at least three connecting side portions (514), all of the connecting side portions (514) are connected end to end in sequence and surround the cavity (511), one end of each connecting side portion (514) located on the same side encloses the socket (512), and one end of each connecting side portion (514) away from the socket (512) is connected to the second component (52).

4. The battery device according to claim 1, wherein: The surface of the first component (51) is further provided with a first hole (513) communicating with the cavity (511), and the first hole (513) is used for a fastener to pass through.

5. The battery device according to claim 4, characterized in that The number of the first holes (513) is at least two, and at least some of the first holes (513) are distributed at intervals along the plugging direction (X) of the first connecting member (30).

6. The battery device according to any one of claims 1 to 5, characterized in that: At least one end of the second component (52) extends beyond the first component (51) along a preset direction (Y), wherein the preset direction (Y), the plugging direction (X) of the first component (51), and the thickness direction (Z) of the first component (51) intersect in pairs and are not coplanar.

7. The battery device according to any one of claims 1 to 5, characterized in that: The second component (52) includes a transition portion (521) and a fixing portion (524), the transition portion (521) is connected to the first component (51) via the fixing portion (524), and the orientation of the surface of the transition portion (521) for connection with the second connecting member (40) intersects with the thickness direction (Z) of the first component (51).

8. The battery device according to claim 7, characterized in that The fixing portion (524) protrudes and extends along the thickness direction (Z) of the first component (51), and the transition portion (521) protrudes and extends along the plugging direction (X) of the first component (51).

9. The battery device according to any one of claims 1 to 5, characterized in that: The second component (52) is provided with a second hole (523), and the second hole (523) is used for a fastener to pass through.

10. An electrical device, characterized in that: The electrical equipment comprises the battery device according to any one of claims 1 to 9.

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