Battery devices and electrical appliances

Abstract

This application relates to the field of battery technology and proposes a battery device and an electrical device. The battery device includes a battery cell assembly, electrical components, and a support. The electrical components are electrically connected to the battery cell assembly and include a copper busbar and a wire harness. The copper busbar has a first positioning part. The support includes a first mounting member and a second mounting member. The first mounting member has a second positioning part that can cooperate with the first positioning part. The first mounting member and the second mounting member can be connected to each other to cover the copper busbar. At least one of the first mounting member and the second mounting member has a wire harness fixing structure, and the wire harness is fixed to the wire harness fixing structure. The battery device provided in this application uses a support to fix the wire harness and the copper busbar relative to each other, which can reduce the risk of friction between the wire harness and the copper busbar and reduce the risk of insulation failure or short circuit fault caused by wire harness wear.

Description

Technical Field

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

[0002] Energy conservation and emission reduction are key to sustainable development, which in turn promotes the adjustment of the energy structure and drives the development and application of battery technology.

[0003] Wiring harnesses and copper busbars are crucial components of battery devices, and their arrangement directly affects the battery's energy density. Currently, due to reduced internal space in battery devices, the assembly gap between the wiring harness and copper busbars is smaller. During vehicle operation, the wiring harness is prone to friction with the copper busbars, causing wear and tear, which can lead to insulation failure or short circuits. Utility Model Content

[0004] In view of this, embodiments of this application provide a battery device and an electrical device that can reduce the risk of friction between the wiring harness and the copper busbar, and improve the reliability of the battery device.

[0005] An embodiment of the first aspect of this application provides a battery device, comprising: a battery cell assembly; an electrical component electrically connected to the battery cell assembly, the electrical component including a copper busbar and a wire harness, the copper busbar having a first positioning portion; a bracket including a first mounting member and a second mounting member, the first mounting member having a second positioning portion, the second positioning portion being capable of engaging and connecting with the first positioning portion; the first mounting member and the second mounting member being capable of being interconnected to cover the copper busbar, at least one of the first mounting member and the second mounting member having a wire harness fixing structure, the wire harness being fixed to the wire harness fixing structure.

[0006] In the battery device provided in this application embodiment, the first mounting member is connected to the first positioning member on the copper busbar through a second positioning member, thereby positioning the first mounting member on the copper busbar. The first mounting member and the second mounting member can be connected to each other and cover the copper busbar. The wire harness fixing structure on the bracket achieves relative fixation between the wire harness and the copper busbar, and the bracket can isolate the wire harness from the copper busbar. In this way, the battery device reduces the risk of easy friction between the wire harness and the copper busbar and the risk of wire harness wear, reduces the risk of insulation failure and short circuit fault caused by wire harness wear, and improves the reliability of the battery device. At the same time, the bracket can be fixed to the copper busbar, solving the problem of not being able to install the bracket due to the lack of sheet metal parts.

[0007] In some embodiments, one of the first positioning part and the second positioning part is a positioning hole, and the other of the first positioning part and the second positioning part is a positioning pin, which is inserted into and connected to the positioning hole.

[0008] By using a positioning pin and positioning hole to connect, the first mounting component can be quickly fixed relative to the copper busbar, thereby restricting the relative degree of freedom between the first mounting component and the copper busbar. This method has the advantages of high-precision positioning, low cost, and repeated assembly and disassembly.

[0009] In some embodiments, a plurality of first positioning portions are provided at intervals on the copper busbar, and a plurality of second positioning portions are provided at intervals on the first mounting member, with the second positioning portions corresponding to and connected to the first positioning portions one by one.

[0010] By adopting the above technical solution, the first mounting component is positioned simultaneously along the length and width directions of the copper busbar, and the bracket can achieve high positioning accuracy.

[0011] In some embodiments, the first mounting member and the second mounting member are respectively mounted on opposite sides of the copper busbar along a first direction, the first direction being the thickness direction of the copper busbar; at least one of the first mounting member and the second mounting member is provided with an elastic structure, the elastic structure elastically abutting against the copper busbar in the first direction.

[0012] By adopting the above technical solution, the elastic structure can continuously provide support force along the first direction, restrict the degree of freedom of the bracket along the first direction, and reduce the probability of the bracket swaying relative to the copper busbar.

[0013] In some embodiments, the elastic structure is a spring arm disposed on a first mounting member, the first mounting member having a through hole, one end of the spring arm being integrally connected to the edge of the through hole, and the other end of the spring arm being movable within the through hole; along a first direction, the surface of the spring arm protrudes from the side of the first mounting member facing the copper busbar.

[0014] By adopting the above technical solution, the spring arm and the main body of the first mounting component are integrally set, which facilitates molding; the spring arm can apply a continuous elastic force to the copper busbar, which improves the connection stability between the bracket and the copper busbar.

[0015] In some embodiments, the first mounting component and the second mounting component are snap-fitted together.

[0016] By adopting the above technical solution, the first and second mounting components have simple structures and are easy to assemble.

[0017] In some embodiments, the first mounting member includes a first base and two first side portions connected to both sides of the first base, the two first side portions being respectively disposed on opposite sides of the copper busbar along its width direction, and a second positioning portion being disposed on the first base; the second mounting member includes a second base and two second side portions connected to both sides of the second base, the two second side portions being respectively disposed on opposite sides of the copper busbar along its width direction; the first base and the second base are respectively disposed on both sides of the copper busbar along its thickness direction, and the first side portions and the second side portions are snap-fit ​​connected.

[0018] By adopting the above technical solution, the first side and the second side are snapped together on both sides of the copper busbar along its width direction, which enables the first mounting part and the second mounting part to be stably connected.

[0019] In some embodiments, a retaining protrusion is provided on the second side, and the retaining protrusion retains the end face of the first side away from the second mounting member.

[0020] By adopting the above technical solution, there is no need to set a retaining hole or retaining groove on the first mounting component, and the structure of the first mounting component is relatively simple.

[0021] In some embodiments, the end face of the first side portion includes a beveled portion and a flat portion arranged sequentially along a second direction, and a step surface is formed between the beveled portion and the flat portion. The second direction is the length direction of the copper busbar. The second mounting member can slide relative to the first mounting member along the second direction, and the retaining protrusion can slide along the beveled portion and fall onto the flat portion, and the retaining protrusion engages with the flat portion.

[0022] By adopting the above technical solution, the inclined surface can guide the assembly of the second mounting component, making it easier to assemble the second mounting component onto the first mounting component; by setting the anti-reverse step surface, the second mounting component is not easy to loosen, and the assembly reliability is high.

[0023] In some embodiments, a stop protrusion is provided at the end of the first side away from the beveled portion.

[0024] By adopting the above technical solution, the beveled part and the stop protrusion are located on opposite sides of the first mounting part along the length of the copper busbar, making it difficult for the second mounting part to fall off from either end of the first mounting part.

[0025] In some embodiments, the second mounting member is located above the copper busbar and the first mounting member, and the wire harness fixing structure includes a wire harness fixing buckle disposed on the second mounting member, the wire harness fixing buckle being used to hold the wire harness.

[0026] By adopting the above technical solution, the second mounting component is located above the first mounting component and the wire harness fixing buckle is set on the second mounting component. The wire harness can be fixed above the bracket and cross the copper busbar, which facilitates the routing of the wire harness in the battery device.

[0027] In some embodiments, the second mounting member includes an extension that extends from a side of the second mounting member to below the first mounting member, and the wire harness fixing structure includes a cable tie fixing hole provided on the extension.

[0028] By adopting the above technical solution, the first side will not interfere with the cable tie fixing hole, making it convenient to install the cable tie; the wire harness is less prone to shaking and friction, further improving the reliability of the wire harness.

[0029] An embodiment of the second aspect of this application provides an electrical device, including a battery device as described in the first aspect, the battery device being used to store or provide electrical energy.

[0030] 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

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or conventional technology 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.

[0032] Figure 1 This is a schematic diagram of the structure of a vehicle provided in one embodiment of this application;

[0033] Figure 2 This is an exploded view of a battery device provided in an embodiment of this application;

[0034] Figure 3 This is an assembly diagram of a copper busbar, wire harness, and bracket provided in an embodiment of this application;

[0035] Figure 4 yes Figure 3 A partial schematic diagram of the copper busbar, wire harness, and bracket shown;

[0036] Figure 5 yes Figure 3 Another view of the assembly diagram of the copper busbar, wire harness and bracket shown;

[0037] Figure 6 yes Figure 5 Enlarged view of part A in the middle;

[0038] Figure 7 This is an assembly diagram of the copper busbar and the first mounting component provided in an embodiment of this application;

[0039] Figure 8 yes Figure 3 A three-dimensional schematic diagram of the first mounting component in the bracket shown;

[0040] Figure 9 yes Figure 8 A three-dimensional schematic diagram of the first mounting component from another angle;

[0041] Figure 10 yes Figure 3A three-dimensional schematic diagram of the second mounting component in the bracket shown.

[0042] The markings in the diagram mean:

[0043] 1000, Vehicle; 100, Battery Unit; 10, Housing; 11, Upper Housing; 12, Lower Housing; 20, Battery Cell Assembly; 30, Electrical Components; 31, Copper Busbar; 311, First Positioning Part; 32, Wiring Harness; 40, Bracket; 401, Accommodation Space; 41, First Mounting Part; 411, First Base; 4111, Second Positioning Part; 4112, Elastic Structure; 4113, Through Hole; 412, First... Side portion; 4121, beveled portion; 4122, flat portion; 4123, anti-reverse step surface; 4124, stop protrusion; 42, second mounting component; 421, second base; 422, second side portion; 4221, retaining protrusion; 425, extension portion; 423, wire harness fixing structure; 4231, wire harness fixing buckle; 4232, cable tie fixing hole; 44, cable tie; 441, cable tie fixing seat; 442, cable tie body. Detailed Implementation

[0044] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0050] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0052] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0053] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0054] With the continuous development of battery devices, the requirements for energy density and safety are becoming increasingly stringent. A battery device includes a housing, individual battery cells, and electrical components, such as wiring harnesses and copper busbars. To improve the energy density of the battery device and meet the requirements of a compact design, the wiring harnesses and copper busbars need to be arranged in an orderly manner within the housing.

[0055] Currently, due to the reduced internal space of the battery device, the assembly gap between the wiring harness and the copper busbar is smaller. During vehicle operation, the wiring harness is prone to friction with the copper busbar, causing wear and tear on the wiring harness, which in turn leads to insulation failure or short circuit faults.

[0056] In related technologies, brackets are used to secure wire harnesses. However, brackets typically need to be mounted on sheet metal parts; if sheet metal parts are unavailable, brackets cannot be installed.

[0057] In view of this, embodiments of this application provide a battery device, including a battery cell assembly, electrical components, and a bracket. The electrical components include a copper busbar and a wire harness. The copper busbar is provided with a first positioning part. The bracket includes a first mounting member and a second mounting member. The first mounting member is provided with a second positioning part, which can cooperate and connect with the first positioning part. The first mounting member and the second mounting member can be connected to each other to cover the copper busbar. At least one of the first mounting member and the second mounting member is provided with a wire harness fixing structure, and the wire harness is fixed to the wire harness fixing structure.

[0058] In the battery device provided in this application embodiment, the bracket includes a first mounting member and a second mounting member. The first mounting member is connected to a first positioning member on a copper busbar via a second positioning member, thereby positioning the first mounting member on the copper busbar. Furthermore, the first and second mounting members can be interconnected and cover the copper busbar, allowing the second mounting member to also be positioned on the copper busbar, meaning the bracket can be fixed to the copper busbar. At least one of the first and second mounting members has a wire harness fixing structure, achieving relative fixation between the wire harness and the copper busbar, and the bracket can isolate the wire harness from the copper busbar. Thus, the battery device reduces the risk of friction between the wire harness and the copper busbar and the risk of wire harness wear, thereby reducing the risk of insulation failure and short circuit faults, and improving the reliability of the battery device. Simultaneously, the bracket can be fixed to the copper busbar, solving the problem of not being able to install the bracket due to a lack of sheet metal parts.

[0059] The technical solutions described in the embodiments of this application are applicable to battery devices and electrical devices that use battery devices.

[0060] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0061] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0062] The battery device disclosed in this application can be used in electrical devices that use the battery device as a power source or in various energy storage systems that use the battery device as an energy storage element. Electrical devices include, for example, mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. Spacecraft include, for example, airplanes, rockets, space shuttles, and spacecraft.

[0063] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0064] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0065] In some embodiments of this application, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0066] refer to Figure 2 , Figure 2 This is an exploded structural diagram of a battery device 100 provided in some embodiments of this application. The battery device mentioned in the embodiments of this application may include one or more battery cell assemblies 20 for providing voltage and capacity. A battery cell assembly 20 may include multiple battery cells, which are connected in series, parallel, or mixed connections via busbars. A battery cell is the smallest unit constituting a battery device, and a battery cell includes a housing, end caps, electrode assemblies, and other functional components.

[0067] In some embodiments, multiple battery cells in the battery device 100 can be electrically connected through a busbar to achieve parallel, series, or mixed connection of multiple battery cells in the battery device 100.

[0068] In some embodiments, the battery cell assembly 20 is typically formed by arranging multiple battery cells; as an example, the battery cell assembly 20 can be a battery module, which is formed by arranging and fixing multiple battery cells into an independent module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0069] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 10 and one or more battery cell assemblies 20, the battery cell assemblies 20 being housed within the housing 10.

[0070] As an example, the battery cell assembly 20 can be a battery module, which can be housed in the housing 10 by fixing the battery module in the housing 10.

[0071] As an example, the battery cell assembly 20 can also be housed in the housing 10 by directly fixing multiple battery cells to the housing 10.

[0072] As an example, the housing 10 may include an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 are fastened together to form a closed receiving cavity inside the housing 10 to house the battery cell assembly 20. Here, "closed" means covered or closed, and can be either sealed or unsealed.

[0073] As an example, the housing 10 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 10 forms a closed receiving cavity to house the battery cell assembly 20.

[0074] As an example, the housing 10 can be part of the chassis structure of the vehicle 1000. For example, the top cover of the housing 10 can be at least part of the floor of the vehicle 1000, or the frame of the housing 10 can be at least part of the crossbeams and longitudinal beams of the vehicle 1000.

[0075] In some embodiments, battery device 100 refers to an energy storage device, which includes a housing 10, and at least one side of the housing 10 has a door. The energy storage device includes energy storage containers, energy storage cabinets, etc.

[0076] An embodiment of the first aspect of this application provides a battery device 100. Please refer to... Figures 2 to 7 The battery device 100 includes a battery cell assembly 20, an electrical component 30, and a bracket 40. The electrical component 30 is electrically connected to the battery cell assembly 20. The electrical component 30 includes a copper busbar 31 and a wire harness 32. The copper busbar 31 is provided with a first positioning part 311. The bracket 40 includes a first mounting member 41 and a second mounting member 42. The first mounting member 41 is provided with a second positioning part 4111, which can cooperate with the first positioning part 311. The first mounting member 41 and the second mounting member 42 can be connected to each other to cover the copper busbar 31. At least one of the first mounting member 41 and the second mounting member 42 is provided with a wire harness fixing structure 423, and the wire harness 32 is fixed to the wire harness fixing structure 423.

[0077] The bracket 40 is used to secure the copper busbar 31 and the wire harness 32. The bracket 40 includes a first mounting member 41 and a second mounting member 42, which are interconnected to cover the copper busbar 31. Specifically, the first mounting member 41 and the second mounting member 42 are interconnected to form a receiving space 401, within which the copper busbar 31 passes. Thus, the bracket 40 can cover the copper busbar 31, separating the wire harness 32 from the copper busbar 31.

[0078] Optionally, the first mounting member 41 and the second mounting member 42 are snap-fitted together; alternatively, the first mounting member 41 may also be movably connected to the second mounting member 42, that is, the first mounting member 41 and the second mounting member 42 can move relative to each other (such as rotate, slide, swing, etc.) or can be repeatedly disassembled and assembled. For example, the first mounting member 41 and the second mounting member 42 are rotatably connected by a hinge, or the first mounting member 41 and the second mounting member 42 are detachably connected by a snap-fit ​​or threaded connection, or the first mounting member 41 and the second mounting member 42 are slidably connected.

[0079] At least one of the first mounting member 41 and the second mounting member 42 is provided with a wire harness fixing structure 423, which can constrain and fix the wire harness 32. For example, the wire harness fixing structure 423 is provided on the second mounting member 42.

[0080] like Figure 7 As shown, the copper busbar 31 is provided with a first positioning part 311, and the first mounting member 41 is provided with a second positioning part 4111. The second positioning part 4111 is connected to the first positioning part 311, so that the first mounting member 41 can be positioned relative to the copper busbar 31. Optionally, the second positioning part 4111 is plugged into the first positioning part 311. It can be understood that the second positioning part 4111 can also be connected to the first positioning part 311 by means of snap-fit ​​or other methods.

[0081] During assembly, the first mounting part 41 is first connected to the copper busbar 31, so that the second positioning part 4111 is engaged with the first positioning part 311. Then, the second mounting part 42 is fixedly connected to the first mounting part 41, so that the second mounting part 42 and the first mounting part 41 cover each other and enclose the copper busbar 31.

[0082] In the battery device 100 provided in this application embodiment, the bracket 40 includes a first mounting member 41 and a second mounting member 42. The first mounting member 41 is connected to the first positioning part 311 on the copper busbar 31 through the second positioning part 4111, so that the first mounting member 41 is positioned on the copper busbar 31. Furthermore, the first mounting member 41 and the second mounting member 42 can be connected to each other and cover the copper busbar 31, so that the second mounting member 42 can also be fixed on the copper busbar 31. That is, the bracket 40 can be fixed on the copper busbar 31. The first mounting member 41 and the second mounting member 42 can separate the wire harness 32 from the copper busbar 31. At least one of the first mounting member 41 and the second mounting member 42 is provided with a wire harness fixing structure 423, which realizes the relative fixation between the wire harness 32 and the copper busbar 31. In this way, the battery device 100 reduces the risk of easy friction between the wire harness 32 and the copper busbar 31 and the risk of wear of the wire harness 32, reduces the risk of insulation failure and short circuit faults, and improves the reliability of the battery device 100; at the same time, the bracket 40 can be fixed to the copper busbar 31, solving the problem of not being able to install the bracket 40 due to the lack of sheet metal parts.

[0083] In some embodiments, one of the first positioning part 311 and the second positioning part 4111 is a positioning hole, and the other of the first positioning part 311 and the second positioning part 4111 is a positioning pin, which is inserted into and connected to the positioning hole.

[0084] For example, the first positioning part 311 is a positioning hole provided on the copper busbar 31, and the second positioning part 4111 is a positioning pin provided on the first mounting part 41. The positioning pin is inserted and connected to the positioning hole. Machining the positioning hole on the copper busbar 31 and setting the positioning pin on the first mounting part 41 is a simple processing method with low cost.

[0085] like Figure 7 As shown, the first positioning part 311 on the copper busbar 31 is a positioning hole, and the positioning hole is a through hole penetrating the copper busbar 31. In other embodiments, the positioning hole may also be a blind hole. The second positioning part 4111 is a positioning pin provided on the first mounting member 41. The positioning pin is inserted and engaged with the positioning hole to position the first mounting member 41 on the copper busbar 31.

[0086] By using the positioning pin and positioning hole to connect, the first mounting part 41 can be quickly fixed relative to the copper busbar 31, thereby restricting the relative degree of freedom between the first mounting part 41 and the copper busbar 31. This method has the advantages of high-precision positioning, low cost, and repeated assembly and disassembly.

[0087] In other embodiments, positioning pins may be provided on the copper busbar 31 and positioning holes may be provided on the first mounting member 41.

[0088] In other embodiments, the first positioning part 311 and the second positioning part 4111 may also be connected by means other than plug-in connection, for example, they may be connected by magnetic attraction.

[0089] Please refer to Figure 7 and Figure 8 In some embodiments, the copper busbar 31 is provided with a plurality of first positioning parts 311 at intervals, and the first mounting part 41 is provided with a plurality of second positioning parts 4111 at intervals, and the second positioning parts 4111 are connected to the first positioning parts 311 one by one.

[0090] For example, the copper busbar 31 has two first positioning parts 311 along its length direction, and the first mounting part 41 has two second positioning parts 4111. The two first positioning parts 311 and the two second positioning parts 4111 are connected in a one-to-one correspondence.

[0091] By adopting the above technical solution, the first mounting component 41 is positioned simultaneously along the length direction (X direction in the figure) and the width direction (Y direction in the figure) of the copper busbar 31, and the bracket 40 can obtain high positioning accuracy.

[0092] In other embodiments, one or more of the first positioning part 311 and the second positioning part 4111 may be provided. For example, one of each of the first positioning part 311 and the second positioning part 4111 may be provided. The first positioning part 311 is an oblong hole extending along the length direction of the copper busbar 31.

[0093] Please refer to Figures 3 to 9 In some embodiments, along the first direction Z, the first mounting member 41 and the second mounting member 42 are respectively mounted on opposite sides of the copper busbar 31, the first direction Z being the thickness direction of the copper busbar 31; at least one of the first mounting member 41 and the second mounting member 42 is provided with an elastic structure 4112, the elastic structure 4112 elastically abutting against the copper busbar 31 in the first direction Z.

[0094] The first mounting member 41 and the second mounting member 42 are respectively mounted on opposite sides of the copper busbar 31, and together they can cover the copper busbar 31. Optionally, the first mounting member 41 is located below the copper busbar 31, and the second mounting member 42 is located above the copper busbar 31.

[0095] The elastic structure 4112 refers to a structure with elastic deformation capability. Optionally, the elastic structure 4112 is provided on the first mounting member 41. Since the elastic structure 4112 elastically abuts against the copper busbar 31 in the first direction Z, after the bracket 40 is installed on the copper busbar 31, the elastic structure 4112 can continuously provide support force along the first direction Z, restrict the degree of freedom of the bracket 40 in the first direction Z, reduce the probability of the bracket 40 swaying relative to the copper busbar 31, and the bracket 40 can be fixed relative to the copper busbar 31 in the first direction Z, further improving the connection stability between the bracket 40 and the copper busbar 31.

[0096] like Figure 4 and Figure 8As shown, in some embodiments, the elastic structure 4112 is a spring arm provided on the first mounting member 41. The first mounting member 41 is provided with a through hole 4113. One end of the spring arm is integrally connected to the edge of the through hole 4113, and the other end of the spring arm can move within the through hole 4113. Along the first direction, the surface of the spring arm protrudes from the side of the first mounting member 41 facing the copper busbar 31.

[0097] One end of the spring arm is integrally connected to the edge of the through hole 4113, and the other end is a free end. The free end of the spring arm can elastically abut against the surface of the copper busbar 31 in the first direction, so that the bracket 40 and the copper busbar 31 are tightly connected in the first direction.

[0098] Optionally, the first mounting component 41 is provided with two through holes 4113 and two spring arms, which further increases the force exerted by the first bracket 40 on the copper busbar 31 along the first direction Z.

[0099] By adopting the above technical solution, the spring arm and the main body of the first mounting component 41 are integrally set, which facilitates molding; after the bracket 40 is assembled on the copper busbar 31, the spring arm can apply a continuous elastic force to the copper busbar 31, which improves the connection stability between the bracket 40 and the copper busbar 31 and reduces the risk of the bracket 40 shaking.

[0100] Please refer to Figures 4 to 10 The first mounting component 41 and the second mounting component 42 are snap-fitted together.

[0101] The first mounting component 41 and the second mounting component 42 can be fixedly connected by various snap-fit ​​methods. For example, one of the first mounting component 41 and the second mounting component 42 may have a protruding hook and the other may have a mating groove that engages with the hook. Alternatively, one of the first mounting component 41 and the second mounting component 42 may have an elastic arm and the other may have a mating groove that engages with the end of the elastic arm. During assembly, the first mounting component 41 is first positioned on the copper busbar 31, and then the second mounting component 42 is snapped together with the first mounting component 41, so that the first mounting component 41 and the second mounting component 42 together cover the periphery of the copper busbar 31, thereby achieving a fixed connection between the copper busbar 31 and the bracket 40.

[0102] By adopting the above technical solution, the first mounting part 41 and the second mounting part 42 can be separated and fixed by snap-fit ​​connection. The two have simple structures and are easy to assemble.

[0103] In some embodiments, the first mounting member 41 includes a first base 411 and two first side portions 412 connected to both sides of the first base 411. The two first side portions 412 are respectively disposed on opposite sides of the copper busbar 31 along its width direction, and the second positioning portion 4111 is disposed on the first base 411. The second mounting member 42 includes a second base 421 and two second side portions 422 connected to both sides of the second base 421. The two second side portions 422 are respectively disposed on opposite sides of the copper busbar 31 along its width direction. The first base 411 and the second base 421 are respectively disposed on both sides of the copper busbar 31 along its thickness direction, and the first side portions 412 and the second side portions 422 are snap-fit ​​connected.

[0104] The first base 411 and the second base 421 abut against the two sides of the copper busbar 31 along the first direction Z, respectively. The two first side portions 412 and the two second side portions 422 are snapped together on the side of the copper busbar 31. In this way, the first mounting member 41 and the second mounting member 42 simultaneously cover the two large surfaces and two side surfaces of the copper busbar 31. The bracket 40 can separate the copper busbar 31 and the wire harness 32, reducing the risk of wear and tear on the wire harness 32.

[0105] On both sides of the copper busbar 31 along its width direction, the first side portion 412 and the second side portion 422 are snap-fitted together, which enables the first mounting member 41 and the second mounting member 42 to be stably connected.

[0106] In some embodiments, a retaining protrusion 4221 is provided on the second side portion 422, and the retaining protrusion 4221 retains the end face of the first side portion 412 away from the second mounting member 42.

[0107] The retaining protrusion 4221 is located on the inner side of the second side 422 facing the copper busbar 31. In some embodiments, the first mounting member 41 is located below the second mounting member 42, and the retaining protrusion 4221 is retained on the lower end face of the first side 412, making it difficult for the first mounting member 41 and the second mounting member 42 to separate.

[0108] By adopting the above technical solution, the retaining protrusion 4221 is engaged with the end face of the first side 412 away from the first base 411, so that the first mounting member 41 and the second mounting member 42 are stably connected and the first mounting member 41 and the second mounting member 42 are tightly abutted against both sides of the copper busbar 31; and, there is no need to provide retaining holes or retaining grooves on the first mounting member 41, so the structure of the first mounting member 41 is relatively simple; at the same time, the retaining part can be shielded, and the retaining protrusion 4221 will not occupy too much space.

[0109] In some embodiments, the end face of the first side portion 412 includes a beveled portion 4121 and a flat portion 4122 arranged sequentially along the second direction X. A step surface 4123 is formed between the beveled portion 4121 and the flat portion 4122. The second direction X is the length direction of the copper busbar 31. The second mounting member 42 can slide relative to the first mounting member 41 along the second direction X. The retaining protrusion 4221 can slide along the beveled portion 4121 to the flat portion 4122, and the retaining protrusion 4221 is engaged with the flat portion 4122.

[0110] For example, the first mounting member 41 is located below the second mounting member 42 and the copper busbar 31, the height of the inclined portion 4121 is gradually inclined downward, and a step surface 4123 is formed between the inclined portion 4121 and the flat portion 4122.

[0111] During assembly, the first mounting piece 41 is first positioned on the copper busbar 31; the second mounting piece 42 is slid from the end of the copper busbar 31, so that the retaining protrusion 4221 is pushed up by the inclined part 4121, and then the retaining protrusion 4221 falls into the flat part 4122 and engages with the flat part 4122. The first mounting piece 41 and the second mounting piece 42 can achieve a snap-fit ​​connection and simultaneously cover the copper busbar 31.

[0112] By adopting the above technical solution, the assembly of the second mounting part 42 can be completed by sliding the second mounting part 42 with one hand, which is simple and efficient. The inclined part 4121 can guide the assembly of the second mounting part 42, making it easier to assemble the second mounting part 42 onto the first mounting part 41. An anti-retraction step surface 4123 is formed between the inclined part 4121 and the flat part 4122, so the second mounting part 42 is not easy to loosen and the assembly reliability is high.

[0113] It is understood that in other embodiments, the second mounting member 42 may also be pressed down from the upper side of the first mounting member 41 to assemble with the first mounting member 41, in which case the inclined portion 4121 may be omitted.

[0114] In some embodiments, a stop protrusion 4124 is provided at the end of the first side portion 412 away from the inclined portion 4121.

[0115] The stop protrusion 4124 can be strip-shaped, semi-circular, or other shapes. The stop protrusion 4124 can be formed on the end face of the first side portion 412 away from the second mounting member 42, or it can be formed on the outer side surface of the first side portion 412.

[0116] The inclined surface 4121 and the stop protrusion 4124 are located on opposite sides of the first mounting member 41 along the length direction (second direction X) of the copper busbar 31, respectively. Thus, the anti-reverse step surface 4123 and the stop protrusion 4124 together limit the locking protrusion 4221, making it difficult for the second mounting member 42 to detach from either end of the first mounting member 41 along the second direction. Therefore, during vehicle operation, the stop protrusion 4124 reduces the risk of the second mounting member 42 detaching.

[0117] In some embodiments, the second mounting member 42 is located above the copper busbar 31 and the first mounting member 41, and the wire harness fixing structure 423 includes a wire harness fixing buckle 4231 disposed on the second mounting member 42, which is used to hold the wire harness 32.

[0118] The second mounting member 42 is an upper bracket, and the first mounting member 41 is a lower bracket. For example, the wire harness fixing clip 4231 is located at the second base 421, which has a large area, allowing for easy installation of one or more wire harness fixing clips 4231.

[0119] For example, the wire harness securing clip 4231 includes two oppositely arranged hooks and a spacer plate located between the two hooks, with each hook and the spacer plate forming a wire harness 32 holding groove. It is understood that the spacer plate may be omitted.

[0120] The wire harness fixing clip 4231 can have various structures. For example, the wire harness fixing clip 4231 can be formed with an arc-shaped groove.

[0121] By adopting the above technical solution, the second mounting component 42 is located above the first mounting component 41 and the wire harness fixing buckle 4231 is provided on the second mounting component 42. The wire harness 32 can be fixed above the bracket 40 and cross the copper busbar 31, which facilitates the routing of the wire harness 32 in the battery device 100.

[0122] In some embodiments, the second mounting member 42 includes an extension 425 that extends from the side of the second mounting member 42 to below the first mounting member 41, and the wire harness fixing structure 423 includes a cable tie fixing hole 4232 provided on the extension 425.

[0123] The cable tie 44 includes a cable tie fixing base 441 and a cable tie body 442 integrally connected to the cable tie fixing base 441. The cable tie fixing hole 4232 is used to install the cable tie fixing base 441.

[0124] Since the extension portion 425 extends to the lower part of the first mounting member 41, the first side portion 412 will not interfere with the cable tie fixing hole 4232, making it convenient to install the cable tie; and, since the extension portion 425 extends downward, the wire harness 32 extends from the top of the bracket 40 through the wire harness fixing buckle 4231 and extends to the side of the bracket 40 and is restrained by the cable tie 44, the wire harness 32 is less likely to shake and rub, further improving the reliability of the wire harness 32.

[0125] Please refer to Figures 2 to 10 In some embodiments, the battery device 100 includes a battery cell assembly 20, an electrical component 30, and a bracket 40. The electrical component 30 is electrically connected to the battery cell assembly 20. The electrical component 30 includes a copper busbar 31 and a wiring harness 32. The copper busbar 31 is provided with a first positioning part 311. The bracket 40 includes a first mounting member 41 and a second mounting member 42 that are snap-fitted together. The first mounting member 41 is provided with a second positioning part 4111, which can cooperate with the first positioning part 311. The first mounting member 41 and the second mounting member 42 can be connected to each other to cover the copper busbar 31. At least one of the first mounting member 41 and the second mounting member 42 is provided with a wiring harness fixing structure 423, and the wiring harness 32 is fixed to the wiring harness fixing structure 423. One of the first positioning part 311 and the second positioning part 4111 is a positioning hole, and the other of the first positioning part 311 and the second positioning part 4111 is a positioning pin. The positioning pin is inserted into and cooperates with the positioning hole. The first mounting member 41 and the second mounting member 42 are respectively mounted on opposite sides of the copper busbar 31 along the first direction Z. At least one of the first mounting member 41 and the second mounting member 42 is provided with an elastic structure 4112, which elastically abuts against the copper busbar 31 in the first direction Z.

[0126] The battery device 100 provided in this application embodiment fixes the wire harness 32 and the copper busbar 31 relative to each other through the bracket 40, which reduces the risk of friction between the wire harness 32 and the copper busbar 31 and improves the reliability of the battery device 100.

[0127] The second aspect of this application provides an electrical device, including the battery device 100 of the first aspect, the battery device 100 being used to provide electrical energy to the electrical device.

[0128] The power supply device can be any of the aforementioned devices or systems that utilize battery device 100.

[0129] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A battery device, characterized in that, include: Battery cell assembly; An electrical component, electrically connected to the battery cell assembly, the electrical component including a copper busbar and a wiring harness, the copper busbar having a first positioning part; The bracket includes a first mounting component and a second mounting component. The first mounting component is provided with a second positioning part, which can cooperate and connect with the first positioning part. The first mounting component and the second mounting component can be connected to each other to cover the copper busbar. At least one of the first mounting component and the second mounting component is provided with a wire harness fixing structure, and the wire harness is fixed to the wire harness fixing structure.

2. The battery device of claim 1, wherein One of the first positioning part and the second positioning part is a positioning hole, and the other of the first positioning part and the second positioning part is a positioning pin. The positioning pin is inserted into and connected to the positioning hole.

3. The battery device of claim 1, wherein The copper busbar is provided with a plurality of first positioning parts at intervals, and the first mounting component is provided with a plurality of second positioning parts at intervals, with the second positioning parts corresponding to and connected to the first positioning parts one by one.

4. The battery device of claim 1, wherein The first mounting component and the second mounting component are respectively mounted on opposite sides of the copper busbar along a first direction, where the first direction is the thickness direction of the copper busbar; At least one of the first mounting member and the second mounting member is provided with an elastic structure, which elastically abuts against the copper busbar in the first direction.

5. The battery device of claim 4, wherein The elastic structure is a spring arm provided on the first mounting member. The first mounting member has a through hole. One end of the spring arm is integrally connected to the edge of the through hole, and the other end of the spring arm can move within the through hole. Along the first direction, the surface of the spring arm protrudes from the side of the first mounting member facing the copper busbar.

6. The battery device of any one of claims 1-5, wherein, The first mounting component and the second mounting component are snap-fitted together.

7. The battery device of claim 6, wherein The first mounting component includes a first base and two first side portions connected to both sides of the first base. The two first side portions are respectively disposed on opposite sides of the copper busbar along its width direction, and the second positioning portion is disposed on the first base. The second mounting member includes a second base and two second side portions connected to both sides of the second base, the two second side portions being respectively disposed on opposite sides of the copper busbar along its width direction; The first base and the second base are respectively disposed on both sides of the copper busbar along its thickness direction, and the first side and the second side are snap-fitted together.

8. The battery device of claim 7, wherein The second side is provided with a retaining protrusion, which retains the first side away from the end face of the second mounting member.

9. The battery device of claim 8, wherein, The end face of the first side portion includes a beveled portion and a flat portion arranged sequentially along a second direction. A step surface is formed between the beveled portion and the flat portion. The second direction is the length direction of the copper busbar. The second mounting member is slidable relative to the first mounting member along the second direction, the retaining protrusion is slidable along the inclined surface and falls onto the flat surface, and the retaining protrusion engages with the flat surface.

10. The battery device as claimed in claim 9, characterized in that, The first side portion has a stop protrusion at the end away from the inclined surface.

11. The battery device of any one of claims 1-5, wherein, The second mounting component is located above the copper busbar and the first mounting component. The wire harness fixing structure includes a wire harness fixing buckle provided on the second mounting component, which is used to hold the wire harness.

12. The battery device of claim 11, wherein, The second mounting member includes an extension portion that extends from the side of the second mounting member to the bottom of the first mounting member, and the wire harness fixing structure includes a cable tie fixing hole provided on the extension portion.

13. An electrical device, characterized by Includes a battery device as described in any one of claims 1-12, the battery device being used to store or provide electrical energy.

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