Battery device and electric appliance

Abstract

Some embodiments of the present specification provide a battery device and an electric device, and relate to the technical field of batteries. The battery device comprises a battery assembly, a high-voltage box, a charging connector and an equipotential support. The high-voltage box has a box body. The charging connector is connected with the box body and comprises a ground wire harness terminal. The equipotential support is arranged in the box body and electrically connects the ground wire harness terminal and the box body. A limiting portion is arranged on the equipotential support, and the limiting portion forms a limiting fit with the ground wire harness terminal. By integrating the limiting portion on the equipotential support, the anti-rotation function and the equipotential connection function can be integrated in the same component, without the need to set up an independent anti-rotation part and without the need to change the structure of the ground wire harness terminal itself, thereby reducing the number of parts, saving the internal space of the high-voltage box, being conducive to the lightweight and small size design of the high-voltage box, and reducing the manufacturing cost and assembly complexity.

Description

Technical Field

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

[0002] In the field of new energy technology, high-voltage boxes, as core components for power distribution and control, are widely used in electrical equipment such as vehicles and energy storage devices. High-voltage boxes are typically connected to charging connectors, which have grounding harness terminals. These terminals need to be electrically connected to the housing of the high-voltage box to achieve electrical grounding protection during the charging process. Therefore, improving the reliability of the charging connector grounding is a crucial aspect of enhancing the electrical safety of electrical equipment. Utility Model Content

[0003] This application provides a battery device in several embodiments. The battery device includes a battery assembly, a high-voltage box, a charging connector, and an equipotential bonding bracket. The high-voltage box has a housing. The charging connector is connected to the housing and includes a grounding harness terminal. The equipotential bonding bracket is disposed within the housing and electrically connects the grounding harness terminal and the housing. A limiting portion is provided on the equipotential bonding bracket, which forms a limiting engagement with the grounding harness terminal. By integrating the limiting portion onto the equipotential bonding bracket, the anti-rotation function and the equipotential bonding function can be integrated into the same component, eliminating the need for separate anti-rotation parts and altering the structure of the grounding harness terminal itself. This reduces the number of parts, saves internal space in the high-voltage box, facilitates lightweight and miniaturized design of the high-voltage box, and reduces manufacturing costs and assembly complexity.

[0004] In some embodiments, the equipotential bonding bracket includes a support bracket and an anti-rotation bracket. The support bracket is connected to the housing. The anti-rotation bracket is disposed on the support bracket, and the support bracket and the anti-rotation bracket are separate structures. The limiting part is disposed on the anti-rotation bracket. The equipotential bonding bracket adopts a separate structure, with the anti-rotation bracket installed as an independent part on the support bracket. When the installation positions of the charging connectors in different models of high-voltage boxes are different, only the installation position of the anti-rotation bracket needs to be replaced or adjusted for adaptation, without the need to redesign the entire equipotential bonding bracket. After the limiting wall surface wears down, only the anti-rotation bracket needs to be replaced separately, reducing maintenance costs. Furthermore, the anti-rotation bracket can be independently manufactured, has a simple structure, and is easy to mass-produce. The support bracket and the anti-rotation bracket can be designed and manufactured separately, allowing for flexible adjustment of size and layout according to the internal space of the high-voltage box, better adapting to compact installation spaces. At the same time, the separate structure facilitates disassembly and repair, improving the convenience of assembly and maintenance.

[0005] In some embodiments, the anti-rotation bracket further includes a mounting portion, which is respectively connected to both ends of the limiting portion, and the limiting portion and the mounting portion are offset from each other in a first direction. By offsetting the mounting portion, the position of the limiting portion can be flexibly adjusted according to the actual installation space, improving the adaptability and layout flexibility of the anti-rotation bracket to different high-voltage box internal spaces.

[0006] In some embodiments, the anti-rotation bracket further includes a mounting portion, which is respectively connected to both ends of the limiting portion, and the limiting portion and the mounting portion are located on the same plane. This anti-rotation bracket has a simpler structure, a simpler manufacturing process, and a lower cost, while still achieving the same anti-rotation function for the grounding harness terminals.

[0007] In some embodiments, the equipotential bonding support includes a support bracket connected to the housing, and the limiting portion is disposed on the support bracket, with the limiting portion and the support bracket being an integral structure. This integral structure eliminates the need for an additional independent limiting portion, reducing the number of parts and assembly steps, which helps reduce material management costs and assembly time, and improves assembly efficiency. Furthermore, the integral structure can be formed in one step using processes such as stamping, making dimensional accuracy easy to control, which is beneficial for ensuring product consistency during mass production and reduces the difficulty and cost of quality control.

[0008] In some embodiments, the limiting portion is a groove on the support bracket. This groove structure can be integrally formed on the support bracket directly by a stamping process, which is simple to process and does not require additional machining or assembly steps, thus helping to reduce manufacturing costs and shorten the production cycle.

[0009] In some embodiments, the limiting portion has a limiting wall surface, which forms a limiting fit with the side wall surface of the grounding harness terminal to restrict the rotation of the grounding harness terminal about its axis. Through the abutment between the two walls, a circumferential constraint force is generated when the grounding harness terminal rotates about its axis, thereby limiting the terminal's rotation. Since the limiting wall surface and the side wall surface are in surface-to-surface contact, the contact area is relatively large, which can disperse the force exerted when the terminal rotates on the contact surface, reducing the risk of wall deformation caused by local stress concentration. This improves the durability and reliability of the limiting fit, ensuring stable circumferential positioning of the grounding harness terminal during the locking process and under long-term operating conditions.

[0010] In some embodiments, the equipotential bonding bracket includes multiple limiting parts. When the battery device includes multiple charging connectors, the multiple limiting parts correspond one-to-one with the grounding harness terminals of the multiple charging connectors, thereby simultaneously limiting the grounding harness terminals on the same equipotential bonding bracket, achieving anti-rotation limiting of the grounding harness terminals of the multiple charging connectors. This eliminates the need for a separate anti-rotation structure for each connector, reducing the number of parts, simplifying the structural layout within the high-voltage box, and improving the utilization rate of the internal space of the high-voltage box. Furthermore, since the equipotential bonding bracket has multiple limiting parts, and the installation positions of the charging connectors may differ in different models of high-voltage boxes, the appropriate limiting part can be selected to cooperate with the grounding harness terminals according to the actual installation position. This eliminates the need to redesign the equipotential bonding bracket for each model of high-voltage box, improving the versatility of the equipotential bonding bracket.

[0011] In some embodiments, the equipotential bonding bracket includes two connecting portions connected to the housing. The two connecting portions are respectively disposed at opposite ends of the equipotential bonding bracket, and the number of first locking points connecting the two connecting portions to the housing is different. This asymmetrical arrangement of the number of first locking points ensures that the equipotential bonding bracket can only be installed in one orientation within the housing, effectively preventing misalignment between the limiting portion and the grounding harness terminal due to incorrect orientation during assembly, thus ensuring accurate mating between the limiting portion and the grounding harness terminal.

[0012] In some embodiments, the equipotential bonding bracket further includes a bracket body connected to the connecting portion, wherein the two connecting portions have different numbers of second locking points connecting to the bracket body. This asymmetrical arrangement of the number of second locking points ensures that the installation positions of the two connecting portions on the bracket body are not interchangeable; that is, each connecting portion can only be installed in a unique manner at the corresponding end of the bracket body. Combined with the asymmetrical arrangement of the first locking points, a dual anti-misalignment mechanism is formed, ensuring that the installation direction of the connecting portion on the bracket body is unique, and the installation orientation of the entire equipotential bonding bracket within the housing is unique. This effectively prevents misalignment of the limiting portion and the grounding harness terminal due to incorrect orientation during assembly, ensuring accurate mating between the limiting portion and the grounding harness terminal.

[0013] In some embodiments, the contact surfaces between the equipotential bonding bracket and the housing, and between the equipotential bonding bracket and the grounding harness terminal, are provided with conductive contact areas. In this way, when the equipotential bonding bracket, housing, and grounding harness terminal are assembled in place, the components achieve direct metal-to-metal contact through the conductive contact areas, thereby forming a low-resistance conductive path. This enables electrical conduction between the grounding harness terminal, the equipotential bonding bracket, and the housing, ensuring that the grounding terminal of the charging connector is at the same potential as the housing, thus achieving equipotential bonding and effectively ensuring electrical safety during charging.

[0014] Some embodiments of this application provide an electrical device. This electrical device includes the battery device provided by any of the foregoing technical solutions.

[0015] In some embodiments, the electrical device further includes a housing. The housing has a charging opening, and a battery device is disposed inside the housing. The charging opening is correspondingly disposed to the plug end of a charging connector. Attached Figure Description

[0016] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0017] Figure 1 These are schematic diagrams of the structure of exemplary electrical equipment shown in some embodiments of this specification; Figure 2 yes Figure 1 The diagram shown is a top view of the high-voltage box without the top cover. Figure 3 This is a schematic diagram of the structure of an exemplary charging connector according to some embodiments of this specification; Figure 4 This is a schematic diagram of an exemplary equipotential bonding support according to some embodiments of this specification; Figure 5 yes Figure 4 A schematic diagram of the stent body of a medium potential stent; Figure 6 yes Figure 4 A schematic diagram of an anti-rotation bracket for a medium potential support; Figure 7 The exemplary charging connector shown in some embodiments of this specification is assembled with Figure 4 A schematic diagram of the equipotential bonding support in the middle; Figure 8 yes Figure 7 A magnified schematic diagram of a local area A in the middle; Figure 9 The adoption is based on some embodiments shown in this specification. Figure 4 An exemplary schematic diagram of the conductive contact area layout of a medium potential support; Figure 10 This is a schematic diagram of an exemplary equipotential bonding support according to some embodiments of this specification; Figure 11 The exemplary charging connector shown in some embodiments of this specification is assembled with Figure 10 A schematic diagram of the equipotential bonding support in the middle; Figure 12 The adoption is based on some embodiments shown in this specification. Figure 10An exemplary schematic diagram of the conductive contact area layout of a medium potential support.

[0018] The reference numerals in the detailed embodiments are as follows: 1. Electrical equipment; 10. Housing; 20. Battery assembly; 30. High voltage box; 31. Box body; 32. Top cover; 33. Grounding port; 40. Charging connector; 41. First end; 42. Second end; 43. Grounding harness; 44. Grounding harness terminal; 441. Mounting hole; 442. Side wall; 50. Equipotential bracket; 51. Limiting part; 511. Second bolt post; 512. Limiting wall; 513. Bottom surface; 52. Support bracket; 521. Bracket body; 522. Connecting part; 523. Second locking point; 524. First bolt post; 525. Weight reduction hole; 53. Anti-rotation bracket; 531. Mounting part; 5311. Connecting hole. Detailed Implementation

[0019] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. It should be understood that these exemplary embodiments are given merely to enable those skilled in the art to better understand and implement this specification, and are not intended to limit the scope of this specification in any way. Unless obvious from the linguistic context or otherwise, the same reference numerals in the figures represent the same structures or operations.

[0020] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one way to distinguish different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0021] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. The term "based on" means "at least partially based on." The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment."

[0022] In the description of this specification, it should be understood that the terms "first," "second," "third," "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In the description of this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of this specification and for simplifying the description, and are not intended to 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.

[0024] In the description of the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," and "fixing," etc., should be interpreted broadly. For example, the term "connection" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0026] The battery devices and related technologies described in this application are applicable to a wide range of electrical equipment, such as vehicles, ships, and spacecraft. The battery devices can be used as power sources and / or energy storage units for electrical equipment. In energy storage applications, the electrical equipment can be an energy storage device, and the battery device can be a core component of that energy storage device, or the battery device itself can constitute an energy storage device. Exemplary energy storage devices include energy storage containers, energy storage cabinets, etc.

[0027] Figure 1 This is a schematic diagram of the structure of an exemplary electrical device 1 according to some embodiments of this specification.

[0028] Electrical device 1 includes a battery unit for supplying power to electrical device 1. Specifically, the battery unit can function as a power source and / or energy storage unit for electrical device 1. For example, when electrical device 1 is a vehicle, the battery unit can serve as the vehicle's operating power source, supplying power to onboard electronic equipment and control systems. In some embodiments, the battery unit serves as the vehicle's drive power source, replacing or partially replacing fuel or natural gas to provide driving power to the vehicle.

[0029] like Figure 1 As shown, electrical equipment 1 includes a housing 10. To demonstrate the internal structure, Figure 1 The diagram shows the housing 10 with one end open. The battery assembly is housed within the housing 10. The battery assembly includes a battery pack 20, a high-voltage box 30, and a charging connector 40.

[0030] The battery assembly 20 includes multiple battery cells, which are connected in series, parallel, or mixed connections via a busbar. In some embodiments, the battery assembly 20 can be a battery module, which is formed by arranging and fixing multiple battery cells into an independent module. For example, a battery module can be formed by bundling multiple battery cells together with cable ties. In some embodiments, the battery assembly 20 can also be a battery pack, which includes a battery housing and one or more battery cells housed within the battery housing.

[0031] A high-voltage box 30 is disposed at the output end of the battery assembly 20 and is used to realize the power distribution and control between the battery assembly 20 and external electrical equipment or charging equipment. The high-voltage box 30 includes a box body 31, which is a hollow structure with an internal cavity for accommodating high-voltage electrical components such as high-voltage contactors, fuses, and relays. In some embodiments, the box body 31 is a hollow structure with one open end, and a top cover 32 is provided at the open end of the box body 31. The top cover 32 is detachably connected to the box body 31 to close the cavity.

[0032] The charging connector 40 is connected to the housing 31. The housing 10 has a charging opening, which corresponds to the plug end of the charging connector 40. An external charging gun enters the housing 10 through this charging opening and engages with the plug end of the charging connector 40 to achieve the charging and discharging function.

[0033] The charging connector 40 has a grounding harness terminal, which needs to be connected to the grounding system of the high-voltage box 30 to achieve electrical grounding protection during charging. Specifically, as shown... Figure 1 As shown, the box 31 is provided with a grounding port 33. The grounding wire harness terminal is electrically connected to the box 31 through the equipotential bracket 50. The box 31 is then electrically connected to the shell 10 through the grounding port 33, thereby achieving overall equipotentiality of the electrical equipment 1.

[0034] However, during the assembly of the grounding harness terminals, if an anti-rotation structure is not provided for the corresponding grounding harness terminals, the grounding harness terminals are prone to rotate along with the fasteners under the tightening torque, causing a change in the outgoing direction of the grounding harness. This change in outgoing direction may not only cause interference or wear between the grounding harness and other components within the housing 31, but may also affect the contact state of the terminal fastening surfaces, leading to problems such as reduced contact area, increased contact resistance, and decreased tightening torque, thereby affecting grounding reliability and electrical safety. The high-voltage box 30, as a core electrical component within the battery pack, typically needs to house multiple electrical components such as high-voltage contactors, fuses, and relays, and its internal space is very limited. Furthermore, with the increasing demands for lightweight electrical equipment (such as vehicles), the size and weight of the high-voltage box 30 also need continuous optimization, which places higher demands on the integrated design of various components.

[0035] In view of the above, some embodiments of this application provide a battery device. The battery device includes a battery assembly, a high-voltage box, a charging connector, and an equipotential bonding bracket. The high-voltage box has a housing. The charging connector is connected to the housing and includes a grounding harness terminal. The equipotential bonding bracket is disposed within the housing and electrically connected to the grounding harness terminal and the housing. The equipotential bonding bracket has a limiting portion that forms a limiting engagement with the grounding harness terminal.

[0036] The limiting part forms a limiting fit with the grounding harness terminal, which can effectively restrain the rotation of the grounding harness terminal and avoid problems such as changes in the output direction, increased contact resistance, and failure of tightening torque caused by the rotation of the grounding harness terminal, thereby improving the long-term reliability of the grounding connection. By integrating the limiting part on the equipotential bracket, the anti-rotation function and the equipotential connection function can be integrated into the same component. There is no need to set up a separate anti-rotation part or change the structure of the grounding harness terminal itself, which reduces the number of parts, saves internal space of the high-voltage box, is conducive to the lightweight and miniaturized design of the high-voltage box, and reduces manufacturing costs and assembly complexity.

[0037] Figure 2 yes Figure 1 The diagram shown is a top view of the high-voltage box 30 without the top cover 32.

[0038] like Figure 2 As shown, the battery device further includes an equipotential bonding bracket 50. A charging connector 40 is connected to the housing 31. The charging connector 40 includes a grounding harness terminal 44. The equipotential bonding bracket 50 is disposed within the housing 31 and electrically connects the grounding harness terminal 44 and the housing 31. A limiting portion 51 is provided on the equipotential bonding bracket 50. The limiting portion 51 forms a limiting engagement with the grounding harness terminal 44. The grounding harness terminal 44 is electrically connected to the housing 31 through the equipotential bonding bracket 50, achieving equipotentiality between the charging connector 40 and the high-voltage box 30, thereby eliminating the potential difference between them and preventing electrical safety hazards caused by potential differences. The limiting portion 51 forms a limiting engagement with the grounding harness terminal 44 to restrict the rotation of the grounding harness terminal 44 around its axis, avoiding problems such as changes in the wire direction, increased contact resistance, and failure of tightening torque caused by the rotation of the grounding harness terminal 44 during the tightening process, thus improving the long-term reliability of the grounding connection. By integrating the limiting part 51 on the equipotential bracket 50, the anti-rotation function and the equipotential connection function can be integrated into the same component. There is no need to set up a separate anti-rotation part or change the structure of the grounding harness terminal 44 itself. This reduces the number of parts, saves internal space of the high voltage box 30, facilitates the lightweight and miniaturized design of the high voltage box 30, and reduces manufacturing costs and assembly complexity.

[0039] In some embodiments, the charging connector 40 passes through the side wall of the housing 31 and is fixedly connected to the housing 31. See also Figure 2 The charging connector 40 includes a first end 41 and a second end 42. The first end 41 protrudes outside the housing 31 and is used to connect with an external charging gun to achieve charging and discharging functions. The second end 42 extends into the housing 31 and is connected to the electrical circuit inside the housing 31. In some embodiments, the first end 41 and the second end 42 are located on the outer and inner sides of the sidewall of the housing 31, respectively.

[0040] Figure 3 This is a schematic diagram of the structure of an exemplary charging connector 40 according to some embodiments of this specification. Figure 2 and 3As shown, the charging connector 40 further includes a grounding harness 43. One end of the grounding harness 43 is connected to the second end 42, and the other end is connected to a grounding harness terminal 44. The grounding harness terminal 44 is used to realize the electrical connection between the grounding harness 43 and the equipotential bonding bracket 50, and is made of a conductive metal material (e.g., copper or copper alloy). In some embodiments, the grounding harness terminal 44 has a flat plate structure with a mounting hole 441 at its end for fasteners (e.g., screws, bolts) to pass through to lock the grounding harness terminal 44 onto the equipotential bonding bracket 50. The grounding harness terminal 44 and the grounding harness 43 are fixedly connected and conductive by crimping, welding, or other methods. The grounding harness terminal 44 can be an OT terminal, a ring terminal, or other plate-shaped terminal with mounting holes.

[0041] In some embodiments, the grounding harness terminal 44 has an upper surface and a lower surface disposed opposite each other along the axis L of the mounting hole 441. The grounding harness terminal 44 also has a sidewall surface 442 connecting the upper surface and the lower surface. The limiting portion 51 includes a limiting wall surface and a bottom surface connecting the limiting wall surface. The lower surface of the grounding harness terminal 44 abuts against the bottom surface of the limiting portion 51 to achieve conductive contact between the grounding harness terminal 44 and the equipotential bonding bracket 50. In some embodiments, the limiting portion 51 is provided with a bolt post. The bolt post is integrally formed with the limiting portion 51, or is separately provided and then fixedly connected. The mounting hole 441 of the grounding harness terminal 44 passes through the bolt post, and then the grounding harness terminal 44 is locked onto the limiting portion 51 by a fastener (e.g., a nut) to achieve the connection between the grounding harness terminal 44 and the equipotential bonding bracket 50.

[0042] In this application, the term "limiting fit" refers to a fit relationship in which the relative movement of two components in a specific direction is restricted. Specifically, the limiting portion 51 of the equipotential bonding bracket 50 has a limiting wall surface. The limiting wall surface forms a limiting fit with the side wall surface 442 of the grounding harness terminal 44 to restrict the rotation of the grounding harness terminal 44 about its own axis. The axis of the grounding harness terminal 44 can be the axis L of the mounting hole 441. The axis of the grounding harness terminal 44 can be a straight line passing through the center of the mounting hole 441 and perpendicular to the sheet-like plane of the grounding harness terminal 44. For example, the limiting wall surface is located on the rotation path of the grounding harness terminal 44. When the grounding harness terminal 44 rotates about its axis, its side wall surface 442 abuts against the limiting wall surface, thereby preventing the grounding harness terminal 44 from continuing to rotate. The limiting fit allows for a small assembly gap between the grounding harness terminal 44 and the limiting wall surface in the initial state. However, when the grounding harness terminal rotates around its axis to a certain extent, its side wall surface 442 abuts against the limiting wall surface, thereby preventing further rotation. In other words, the limiting fit does not require the two walls to remain in contact at all times, but rather restricts the rotation of the grounding harness terminal 44 around its axis to a preset angle range. Through the abutment between the side wall surface 442 and the limiting wall surface, a circumferential constraint force is generated when the grounding harness terminal rotates around its axis, thereby limiting the rotation of the terminal. Since the limiting wall surface and the side wall surface 442 are in surface contact, the contact area is relatively large, which can disperse the force of the terminal rotation on the contact surface, reducing the risk of wall surface deformation caused by local stress concentration. This is beneficial to improving the durability and reliability of the limiting fit, ensuring that the circumferential positioning of the grounding harness terminal remains stable during the locking process and under long-term use conditions.

[0043] In some embodiments, the equipotential bonding bracket 50 includes a plurality of limiting portions 51. When the battery device includes a plurality of charging connectors 40, the plurality of limiting portions 51 correspond one-to-one with the grounding harness terminals 44 of the plurality of charging connectors 40, thereby simultaneously limiting the grounding harness terminals 44 on the same equipotential bonding bracket 50, achieving anti-rotation limiting of the grounding harness terminals 44 of the plurality of charging connectors 40. In this way, it is not necessary to set an anti-rotation structure for each connector separately, reducing the number of parts, simplifying the structural layout inside the high-voltage box 30, and improving the utilization rate of the internal space of the high-voltage box 30.

[0044] In addition, the equipotential bonding bracket 50 is provided with multiple limiting parts 51. The installation position of the charging connector 40 may be different in different models of high voltage box 30. The appropriate limiting part 51 can be selected to match the grounding wire harness terminal 44 according to the actual installation position. There is no need to redesign the equipotential bonding bracket 50 for each model of high voltage box 30, which improves the versatility of the equipotential bonding bracket 50.

[0045] In some embodiments, the equipotential bonding bracket 50 includes a support bracket 52. The support bracket 52 is connected to the housing 31. A limiting portion 51 is disposed on the support bracket 52. In some embodiments, the equipotential bonding bracket 50 further includes an anti-rotation bracket. The anti-rotation bracket is disposed on the support bracket 52. The support bracket 52 and the anti-rotation bracket are separate structures. The limiting portion 51 is disposed on the anti-rotation bracket. In some embodiments, the limiting portion 51 and the support bracket 52 are an integral structure. For more details about the equipotential bonding bracket 50, please see [link to relevant documentation]. Figures 4-12 .

[0046] In some embodiments, the equipotential bonding support 50 includes one or more connecting portions connected to the housing 31. The equipotential bonding support 50 is fixedly connected to the housing 31 through the connecting portions. In some embodiments, the equipotential bonding support 50 includes two connecting portions, which are respectively disposed at opposite ends of the equipotential bonding support 50. The equipotential bonding support 50 is fixedly connected to the housing 31 through the two connecting portions. The fixed connection between the connecting portions and the housing 31 can be implemented in various forms. For example, the connecting portions may be provided with through holes or threaded holes, and are locked and fixed to the corresponding structure on the inner wall of the housing 31 by screws, bolts, or nuts. For another example, the connecting portions and the housing 31 can be fixedly connected by welding, riveting, or other methods. Those skilled in the art will understand that the specific connection method between the connecting portions and the housing 31 can be flexibly selected according to actual assembly requirements, and this application does not limit this. In some embodiments, the number of first locking points connecting the two connecting portions to the housing 31 is different. For example, one connecting portion has two first locking points, and the other connecting portion has three first locking points. The asymmetrical layout of the number of first locking points ensures that the equipotential bracket 50 can only be installed in a single orientation within the housing 31. This effectively prevents the limiting part 51 from being misaligned with the grounding harness terminal 44 due to incorrect orientation during assembly, allowing the limiting part 51 to accurately engage with the grounding harness terminal 44.

[0047] In some embodiments, the equipotential bonding bracket 50 is made of a conductive metal material, such as copper, copper alloy, aluminum alloy, stainless steel, or galvanized steel. The selection of a conductive metal material for the equipotential bonding bracket 50 ensures good conductivity, enabling the formation of a low-resistance conductive path between the grounding harness terminal 44 and the housing 31, thereby improving the reliability of the equipotential connection. Simultaneously, the conductive metal material possesses sufficient mechanical strength to meet the structural strength requirements of the limiting part 51 under the rotational force of the grounding harness terminal 44 during long-term use, ensuring that the limiting wall surface is not easily deformed or damaged under repeated stress. Those skilled in the art will understand that the specific material of the equipotential bonding bracket 50 can be selected comprehensively based on factors such as the actual application scenario, conductivity requirements, mechanical strength requirements, and cost; this application does not impose any limitations in this regard.

[0048] In some embodiments, conductive contact areas are provided on the contact surfaces between the equipotential bonding bracket 50 and the housing 31 (i.e., the contact surfaces between the connecting portion and the housing 31) and between the equipotential bonding bracket 50 and the grounding harness terminal 44 (i.e., the contact surfaces between the limiting portion 51 and the grounding harness terminal 44). Since the metal components of the high-voltage box 30, such as the housing 31 and the equipotential bonding bracket 50, typically undergo overall electrophoretic surface treatment (e.g., cathodic electrophoresis) during production, the electrophoretic coating is insulating. If the contact surfaces are covered by the electrophoretic coating, it will block the current conduction path, resulting in a reliable electrical connection between the grounding harness terminal 44 and the housing 31. Therefore, this embodiment of the application masks the aforementioned contact surface area before electrophoresis, preventing the area from being covered by the electrophoretic paint during the electrophoresis process, thereby forming an exposed metal area without an insulating coating at the contact surface, i.e., a conductive contact area. Exemplary masking treatments include applying masking tape, coating with peelable masking paint, or installing a masking fixture. In this way, after the equipotential bonding bracket 50, housing 31, and grounding harness terminal 44 are assembled, the components achieve direct metal-to-metal contact through conductive contact areas, forming a low-resistance conductive path. This ensures electrical continuity between the grounding harness terminal 44, the equipotential bonding bracket 50, and the housing 31, thereby placing the grounding terminal of the charging connector 40 at the same potential as the housing 31, achieving equipotential bonding and effectively ensuring electrical safety during charging. For further description of the conductive contact areas, please refer to other parts of this application, such as... Figure 4 , Figure 9 , Figure 10 and Figure 12 .

[0049] Figure 4 This is a schematic diagram of an exemplary equipotential bonding support 50 according to some embodiments of this specification.

[0050] like Figure 4 As shown, the equipotential bonding support 50 includes a support bracket 52 and an anti-rotation bracket 53. The support bracket 52 is connected to the housing 31. The anti-rotation bracket 53 is disposed on the support bracket 52. The support bracket 52 and the anti-rotation bracket 53 are separate structures. A limiting part 51 is disposed on the anti-rotation bracket 53. In this application, "separate structure" refers to a structural form in which multiple components constituting the equipotential bonding support 50 are independent parts, each part is processed and formed separately, and then assembled into a whole by assembly methods (such as screw fastening, snap-fitting, riveting, etc.). For example, in some embodiments, the anti-rotation bracket 53 is installed on the support bracket 52 by fastening, and the two together constitute the equipotential bonding support 50. This structural form is a separate structure.

[0051] The equipotential bonding bracket 50 adopts a split structure, including a support bracket 52 and an anti-rotation bracket 53 mounted on it, with the limiting part 51 integrated into the anti-rotation bracket 53. The anti-rotation bracket 53 is mounted as an independent component on the support bracket 52. When the installation position of the charging connector 40 differs in different models of high-voltage boxes 30, only the installation position of the anti-rotation bracket 53 needs to be replaced or adjusted for adaptation, without the need to redesign the entire equipotential bonding bracket 50. After the limiting wall surface wears down, only the anti-rotation bracket 53 needs to be replaced separately, reducing maintenance costs. Furthermore, the anti-rotation bracket 53 can be independently manufactured, has a simple structure, and is easy to mass-produce. The support bracket 52 and the anti-rotation bracket 53 can be designed and manufactured separately, allowing for flexible adjustment of size and layout according to the internal space of the high-voltage box 30, better adapting to compact installation spaces. At the same time, the split structure facilitates disassembly and maintenance, improving the convenience of assembly and maintenance.

[0052] Figure 5 yes Figure 4 A schematic diagram of the support body 521 of the intermediate potential support 50.

[0053] In some embodiments, such as Figures 4-5 As shown, the support bracket 52 includes a bracket body 521 and a connecting portion 522, which is connected to the bracket body 521. The support bracket 52 is connected to the housing 31 via the connecting portion 522. In some embodiments, the connecting portion 522 may be integrally formed with the bracket body 521, for example, by stamping or casting to form a single integral part. In some embodiments, the connecting portion 522 may also be a separate part, fixedly connected to the bracket body 521 by welding, riveting, or fastener attachment. Those skilled in the art will understand that the specific connection method between the connecting portion 522 and the bracket body 521 can be flexibly selected according to actual manufacturing and assembly requirements, and this application does not limit it in this regard.

[0054] like Figure 2 The equipotential bonding support 50 includes one or more connecting portions 522. The equipotential bonding support 50 is fixedly connected to the housing 31 via the connecting portions 522. In some embodiments, the equipotential bonding support 50 includes two connecting portions 522, which are respectively disposed at opposite ends of the equipotential bonding support 50.

[0055] For ease of description, the support body 521 is plate-shaped. The direction extending along the plate-shaped body of the support body 521 is defined as the length direction X, the direction perpendicular to the length direction X within the surface of the plate-shaped body is defined as the width direction Y, and the direction perpendicular to the surface of the plate-shaped body is defined as the height direction Z. For example, as... Figure 4 and Figure 5As shown, two connecting parts 522 are respectively disposed at opposite ends along the length direction X of the bracket body 521. In some embodiments, the number of second locking points 523 connecting the two connecting parts 522 to the bracket body 521 may be different. For example, one connecting part 522 may be connected to the bracket body 521 via two second locking points 523, while the other connecting part 522 may be connected to the bracket body 521 via three second locking points 523. This asymmetrical arrangement of the number of second locking points 523 ensures that the mounting positions of the two connecting parts 522 on the bracket body 521 are not interchangeable; that is, each connecting part 522 can only be mounted on the corresponding end of the bracket body 521 in a unique manner. Figure 2 In some embodiments, the number of first locking points connecting the two connecting parts 522 to the housing 31 is also different, so that the entire equipotential bonding bracket 50 can only be installed in a single orientation within the housing 31. The asymmetrical layout of the first and second locking points 523 forms a dual anti-misalignment mechanism, ensuring that the connecting parts 522 have a unique installation direction on the bracket body 521, and that the entire equipotential bonding bracket 50 has a unique installation orientation within the housing 31. This effectively prevents misalignment between the limiting part 51 and the grounding harness terminal 44 due to incorrect orientation during assembly, ensuring accurate engagement between the limiting part 51 and the grounding harness terminal 44.

[0056] In some embodiments, one or more weight-reduction holes 525 are provided on the support body 521. The provision of weight-reduction holes 525 can effectively reduce the overall weight of the equipotential bonding support 50 while ensuring the structural strength of the support body 521, which is beneficial to the lightweight design of the high voltage box 30, while saving material usage and reducing manufacturing costs.

[0057] The anti-rotation bracket 53 is disposed on the bracket body 521. The anti-rotation bracket 53 and the bracket body 521 can be fixedly connected in various ways. For example, such as... Figure 4 As shown, the bracket body 521 may be provided with a first bolt post 524, and the anti-rotation bracket 53 is provided with a corresponding mounting hole. The anti-rotation bracket 53 is sleeved on the first bolt post 524 through the mounting hole and locked in place by a nut. Alternatively, the anti-rotation bracket 53 and the bracket body 521 may be fixedly connected by means of snap-fit, riveting, or welding. Those skilled in the art will understand that the specific connection method between the anti-rotation bracket 53 and the bracket body 521 can be flexibly selected according to actual assembly requirements, and this application does not limit this.

[0058] In some embodiments, the bracket body 521 is provided with multiple sets of mounting positions (e.g., Figures 4-5The six sets of first bolt posts 524 shown can be selectively installed on one or more of the installation positions according to actual needs. Thus, the same support bracket 52 can be adapted to different installation positions of the charging connector 40 in different models of high-voltage boxes 30. When the position of the charging connector 40 changes, only the anti-rotation bracket 53 needs to be installed in the corresponding installation position, without needing to redesign the entire equipotential bonding bracket 50. Simultaneously, multiple installation positions combined with multiple anti-rotation brackets 53 can form multiple limiting parts 51 on the same bracket body 521. For example… Figure 4 The two anti-rotation brackets 53 form two limiting parts 51. In practical applications, the corresponding anti-rotation brackets 53 can be selected and installed according to the number and position of the charging connectors 40 in the high-voltage box 30, so as to achieve on-demand configuration and further improve the versatility and flexibility of the equipotential bracket 50.

[0059] In some embodiments, one or more weight-reducing holes 525 are provided on the bracket body 521. The weight-reducing holes 525 can effectively reduce the overall weight of the equipotential bonding bracket 50 while ensuring the structural strength of the bracket body 521, which is beneficial for the lightweight design of the high-voltage box 30, while also saving material usage and reducing manufacturing costs. In some embodiments, the installation position of the anti-rotation bracket 53 corresponds to the weight-reducing hole 525, and the weight-reducing hole 525 provides clearance space for the anti-rotation bracket 53. For example, the limiting portion 51 of the anti-rotation bracket 53 can at least partially extend into the weight-reducing hole 525, or cooperate with the edge (e.g., the hole wall) of the weight-reducing hole 525. Thus, a portion of the structure of the anti-rotation bracket 53 can be embedded in the weight-reducing hole 525, thereby reducing the protrusion height of the anti-rotation bracket 53 relative to the bracket body 521, which helps save internal height space in the high-voltage box 30 and avoids interference between the anti-rotation bracket 53 and other electrical components within the box 31.

[0060] Figure 6 yes Figure 4 A schematic diagram of the anti-rotation bracket 53 of the intermediate potential bracket 50. (See diagram below.) Figure 4 and Figure 6 As shown, the anti-rotation bracket 53 includes a limiting part 51 and two mounting parts 531. The two mounting parts 531 are respectively connected to both ends of the limiting part 51, meaning the limiting part 51 is located between the two mounting parts 531. Each mounting part 531 has a connecting hole 5311 for engaging with a first bolt post 524 on the bracket body 521 to fix the anti-rotation bracket 53 to the bracket body 521. The limiting part 51 has a second bolt post 511 for engaging with the mounting hole 441 of the grounding harness terminal 44. The second bolt post 511 is integrally formed with the limiting part 51, or can be separately installed and then fixedly connected.

[0061] In some embodiments, the limiting part 51 and the mounting part 531 are offset from each other in a first direction. The first direction is the height direction Z of the bracket body 521. By offsetting the parts, the limiting part 51 can be flexibly adjusted according to the actual installation space, improving the adaptability and layout flexibility of the anti-rotation bracket 53 to different internal spaces of the high-voltage box 30. In some embodiments, the limiting part 51 can extend into the weight reduction hole 525. Since the limiting part 51 extends into the weight reduction hole 525, the mating area between the limiting wall surface and the grounding wire harness terminal 44 in the height direction Z is larger, and the limiting is more reliable; at the same time, the overall protrusion height of the anti-rotation bracket 53 relative to the bracket body 521 is reduced, which helps to save the height space inside the high-voltage box 30 and avoids interference between the anti-rotation bracket 53 and other electrical components inside the box 31. In some embodiments, the anti-rotation bracket 53 can be manufactured by stamping. Through stamping, the limiting part 51 and the mounting part 531 of the anti-rotation bracket 53 are integrally formed, with good integrity and high structural strength, and can reliably withstand the force generated by the grounding wire harness terminal 44 during the locking process; at the same time, the stamping process is simple, has high production efficiency, and good dimensional consistency, making it suitable for mass production.

[0062] In some embodiments, the anti-rotation bracket 53 has a flat plate structure, with the limiting part 51 and the mounting part 531 located on the same plane. That is, the limiting part 51 and the mounting part 531 are not separated in the first direction. The anti-rotation bracket 53 of this embodiment has a simpler structure, does not require weight-reduction holes in the bracket body 521, has a simpler manufacturing process, lower cost, and can still achieve the anti-rotation function for the grounding harness terminal 44.

[0063] Figure 7 The exemplary charging connector 40 shown in some embodiments of this specification is assembled with Figure 4 A schematic diagram of the equipotential bonding support 50. Figure 8 yes Figure 7 A magnified schematic diagram of a local region A. (See diagram below.) Figure 7 and Figure 8 As shown, the limiting part 51 includes a second bolt post 511, a limiting wall surface 512, and a bottom surface 513. The second bolt post 511 is disposed on the bottom surface 513. The limiting wall surface 512 includes two opposing walls, which are respectively connected to the opposite two sides of the bottom surface 513 and extend along the height direction Z. The two walls and the bottom surface 513 together enclose a receiving space. The second bolt post 511 is located within this receiving space. The mounting hole 441 of the grounding harness terminal 44 is sleeved on the second bolt post 511, and the grounding harness terminal 44 is locked to the bottom surface 513 by fasteners (not shown), thereby realizing the conductive connection and fixation between the grounding harness terminal 44 and the equipotential bracket 50.

[0064] The two walls of the limiting wall 512 respectively form a limiting engagement with the side walls 442 on opposite sides of the grounding harness terminal 44 in the rotation direction of the grounding harness terminal 44, thereby restricting the rotation of the grounding harness terminal 44 around its own axis. Specifically, the two walls of the limiting wall 512 are located on both sides of the rotation path of the grounding harness terminal 44. When the grounding harness terminal 44 rotates in either direction around its axis, the corresponding side wall 442 abuts against the limiting wall 512, thereby preventing the grounding harness terminal 44 from continuing to rotate, achieving bidirectional limiting. For a more detailed description of the limiting engagement between the limiting wall 512 and the side wall 442, please refer to [link to relevant documentation]. Figure 2 Related descriptions.

[0065] like Figure 2 To achieve electrical connection between the grounding harness terminal 44, the equipotential bracket 50, and the housing 31, ensuring that the grounding terminal of the charging connector 40 and the housing 31 are at the same potential, effective electrical conductivity must be maintained throughout the entire connection path from the grounding harness terminal 44 to the housing 31. Therefore, conductive contact areas are provided at the contact surfaces of the grounding harness terminal 44 and the anti-rotation bracket 53, the anti-rotation bracket 53 and the bracket body 521, the bracket body 521 and the connecting part 522 (when they are separate structures), and the connecting part 522 and the housing 31. These conductive contact areas can be located at any corresponding position within the area covered by each contact surface, as long as electrical conductivity is established between the contacting components. This application does not limit the specific location of the conductive contact areas.

[0066] For example, Figure 9 The adoption is based on some embodiments shown in this specification. Figure 4 An exemplary schematic diagram of the conductive contact area layout of a medium-potential support. It should be noted that the layout is for clear illustration of the conductive contact area's location. Figure 9 The surfaces of each component are shown schematically in planar form. In the actual structure, each surface can be set as planar or non-planar according to specific needs, and this application does not impose any limitations on this. Figure 9 (a) is a schematic diagram of the surfaces of the support body 521 and the connecting part 522 that are arranged opposite to each other. Figure 9 (b) is a schematic diagram of the surfaces of the support body 521 and the anti-rotation support 53 arranged opposite to each other. Figure 9(c) is a schematic diagram of the surfaces of the anti-rotation bracket 53 and the grounding harness terminal 44 facing each other. The black area S in the diagram represents the conductive contact area, which is a bare metal area without an insulating coating formed by a masking process on the corresponding surface. During actual assembly, the conductive contact areas between the components in pairs face each other and make contact, thereby achieving electrical conductivity. Because the conductive contact area S is a bare metal area without an insulating coating, under the fastening force of the locking points, the conductive contact areas between the two components form direct metal-to-metal contact with low contact resistance, enabling a reliable conductive path to be formed between the grounding harness terminal 44, the equipotential bracket 50, and the housing 31.

[0067] Figure 10 This is a schematic diagram of an exemplary equipotential bonding support 50 according to some embodiments of this specification. Figure 11 The exemplary charging connector 40 shown in some embodiments of this specification is assembled with Figure 10 A schematic diagram of the equipotential bonding support 50.

[0068] like Figure 10 and Figure 11 As shown, Figure 10 The equipotential bonding support 50 shown is Figure 4 The difference between the equipotential bonding support 50 shown is: Figure 10 The middle limiting part 51 is disposed on the support bracket 52, and the limiting part 51 and the support bracket 52 are an integral structure. Figure 10 Other structures of the equipotential bonding support 50 shown are similar to Figure 4 The equipotential bonding support 50 shown is basically the same; relevant descriptions can be found in [reference needed]. Figure 4 This will not be repeated here.

[0069] In this application, "integrated structure" refers to a structural form in which the limiting part 51 and the support bracket 52 are formed into an inseparable integral part through an integral molding process. The integral molding process can include stamping, casting, forging, etc. For example, as... Figure 10 As shown, the support bracket 52 includes a bracket body 521 and a connecting portion 522. A limiting portion is disposed on the bracket body 521. The bracket body 521 and the limiting portion 522 are an integral structure. For example, the limiting portion 522 and the bracket body 521 are integrally formed by a stamping process, and there is no connecting interface between the limiting portion 522 and the bracket body 521, forming a complete single part.

[0070] The limiting part 51 and the support bracket 52 adopt an integrated structure, which is an inseparable whole part. The integrated structure eliminates the need for an additional independent limiting part 51, reducing the number of parts and assembly steps, which helps to reduce material management costs and assembly time, and improve assembly efficiency. In addition, the integrated structure can be formed in one step through processes such as stamping, and the dimensional accuracy is easy to control, which is conducive to ensuring product consistency during mass production and reducing the difficulty and cost of quality control.

[0071] like Figure 10 As shown, in some embodiments, the limiting part 51 is a groove on the support bracket 52. This groove structure can be integrally formed on the support bracket 52 directly by a stamping process, which is simple to process and does not require additional machining or assembly steps, thus helping to reduce manufacturing costs and shorten the production cycle.

[0072] like Figure 2 and Figure 4 To achieve electrical connection between the grounding harness terminal 44, the equipotential bracket 50, and the housing 31, ensuring that the grounding terminal of the charging connector 40 and the housing 31 are at the same potential, effective electrical conductivity must be maintained throughout the entire connection path from the grounding harness terminal 44 to the housing 31. Therefore, conductive contact areas are provided at the contact surfaces of the grounding harness terminal 44 and the bracket body 521, the bracket body 521 and the connecting part 522 (when they are separate structures), and the connecting part 522 and the housing 31. These conductive contact areas can be located at any corresponding position within the area covered by each contact surface, as long as electrical conductivity is established between the contacting components. This application does not limit the specific location of the conductive contact areas.

[0073] For example, Figure 12 The adoption is based on some embodiments shown in this specification. Figure 10 An exemplary schematic diagram of the conductive contact area layout of a medium-potential support. It should be noted that the layout is for clear illustration of the conductive contact area's location. Figure 12 The surfaces of each component are shown schematically in planar form. In the actual structure, each surface can be set as planar or non-planar according to specific needs, and this application does not impose any limitations on this. Figure 12 (a) is a schematic diagram of the surfaces of the support body 521 and the connecting part 522 that are arranged opposite to each other. Figure 12Figure (b) is a schematic diagram of the surfaces of the bracket body 521 and the grounding harness terminal 44 facing each other. The black area S in the figure represents the conductive contact area, which is a bare metal area without an insulating coating formed by a masking process on the corresponding surface. During actual assembly, the conductive contact areas between the components in pairs face each other and make contact, thereby achieving electrical conductivity. Because the conductive contact area S is a bare metal area without an insulating coating, under the fastening force of the locking points, the conductive contact areas between the two components form direct metal-to-metal contact with low contact resistance, enabling a reliable conductive path to be formed between the grounding harness terminal 44, the equipotential bracket 50, and the housing 31.

[0074] This specification provides a battery device in several embodiments. The battery device includes a battery assembly, a high-voltage box, a charging connector, and an equipotential bonding bracket. The high-voltage box has a housing. The charging connector is connected to the housing and includes a grounding harness terminal. The equipotential bonding bracket is disposed within the housing and electrically connects the grounding harness terminal and the housing. The equipotential bonding bracket includes a bracket body and a connecting portion. The bracket body is connected to the housing via the connecting portion. An anti-rotation bracket may be provided on the bracket body, and a limiting portion may be provided on the anti-rotation bracket; the limiting portion and the bracket body are separate structures. Alternatively, an integral limiting portion may be directly provided on the bracket body through a stamping process. The limiting portion has a limiting wall surface. The limiting wall surface is located on the rotation path of the grounding harness terminal. When the grounding harness terminal rotates about its axis, its side wall surface abuts against the limiting wall surface, thereby preventing the grounding harness terminal from continuing to rotate.

[0075] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) The equipotential bracket is electrically connected to the grounding harness terminal and the box body, and the equipotential bracket is provided with a limiting part, which forms a limiting fit with the grounding harness terminal. By integrating the limiting part on the equipotential bracket, the anti-rotation function and the equipotential connection function can be integrated into the same component, without setting up independent anti-rotation parts or changing the structure of the grounding harness terminal itself, reducing the number of parts, saving internal space of the high voltage box, which is conducive to the lightweight and miniaturized design of the high voltage box, and reducing manufacturing costs and assembly complexity. (2) The equipotential bracket may include multiple limiting parts. When the battery device includes multiple charging connectors, the multiple limiting parts correspond one-to-one with the grounding harness terminals of the multiple charging connectors, thereby forming a limiting fit on the same equipotential bracket for multiple grounding harness terminals at the same time, realizing the anti-rotation limiting of the grounding harness terminals of multiple charging connectors. In this way, it is not necessary to set up an anti-rotation structure for each connector separately, reducing the number of parts, simplifying the structural layout inside the high voltage box, and improving the utilization rate of the internal space of the high voltage box. In addition, the equipotential bracket is provided with multiple limiting parts. The installation position of the charging connector may be different in different models of high voltage boxes. The appropriate limiting part can be selected to match the grounding harness terminal according to the actual installation position. There is no need to redesign the equipotential bracket for each model of high voltage box, which improves the versatility of the equipotential bracket. (3) The contact surface between the equipotential bracket and the box body and the contact surface between the equipotential bracket and the grounding harness terminal are provided with conductive contact areas. When the equipotential bracket, the box body and the grounding harness terminal are assembled in place, the components can achieve direct metal-to-metal contact through the conductive contact areas, thereby forming a low-resistance conductive path, so that the grounding harness terminal, the equipotential bracket and the box body can achieve electrical conduction, thereby making the grounding end of the charging connector and the box body at the same potential, that is, achieving equipotential connection, effectively ensuring electrical safety during the charging process. (4) The equipotential bracket adopts a split structure, including a support bracket and an anti-rotation bracket installed on it. The limiting part is integrated on the anti-rotation bracket. The anti-rotation bracket is installed on the support bracket as an independent part. When the installation position of the charging connector in different models of high voltage boxes is different, it is only necessary to replace or adjust the installation position of the anti-rotation bracket to adapt it, without redesigning the entire equipotential bracket. After the limit wall is worn, only the anti-rotation bracket needs to be replaced separately, which reduces maintenance costs. In addition, the anti-rotation bracket can be independently processed and formed, with a simple structure, which is convenient for mass production. The support bracket and the anti-rotation bracket can be designed and processed separately, and the size and layout can be flexibly adjusted according to the internal space of the high voltage box 30 to better adapt to the compact installation space. At the same time, the split structure is easy to disassemble and repair, which improves the convenience of assembly and maintenance. (5) The limit part and the support bracket adopt an integrated structure, which is an inseparable whole part. The integrated structure does not require the additional installation of an independent limit part, which reduces the number of parts and assembly steps, which is conducive to reducing material management costs and assembly time, and improving assembly efficiency.In addition, the one-piece structure can be formed in one step through processes such as stamping, and the dimensional accuracy is easy to control, which is conducive to ensuring product consistency during mass production and reducing the difficulty and cost of quality control.

[0076] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0077] Furthermore, this application uses specific terms to describe its embodiments. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this application do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0078] Furthermore, those skilled in the art will understand that aspects of this application can be described and illustrated in several patentable kinds or situations, including any new and useful combination of processes, machines, products or substances, or any new and useful improvements thereto.

[0079] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this application are not intended to limit the order of the processes and methods of this application. Although the foregoing disclosure has discussed some currently considered useful embodiments of the invention through various examples, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the substance and scope of the embodiments of this application. For example, while the system components described above can be implemented using hardware devices, they can also be implemented solely through software solutions, such as installing the described system on existing servers or mobile devices.

[0080] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0081] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0082] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other modifications may also fall within the scope of this application. Therefore, alternative configurations of the embodiments of this application are considered as examples and not limitations, and are regarded as consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly described and illustrated in this application.

Claims

1. A battery device, characterized in that, include: Battery components; A high-voltage box, the high-voltage box having a box body; A charging connector, which is connected to the housing and includes a grounding harness terminal; as well as, An equipotential bonding bracket is disposed within the housing and electrically connected to the grounding harness terminal and the housing. The equipotential bonding bracket is provided with a limiting part, which forms a limiting engagement with the grounding harness terminal.

2. The battery device as claimed in claim 1, characterized in that, The equipotential bonding support includes: Support bracket, the support bracket being connected to the housing; and, An anti-rotation bracket is disposed on the support bracket. The support bracket and the anti-rotation bracket are separate structures, and the limiting part is disposed on the anti-rotation bracket.

3. The battery device as claimed in claim 2, characterized in that, The anti-rotation bracket further includes a mounting part, which is connected to both ends of the limiting part, and the limiting part and the mounting part are offset from each other in a first direction.

4. The battery device as claimed in claim 2, characterized in that, The anti-rotation bracket further includes a mounting part, which is connected to both ends of the limiting part, and the limiting part and the mounting part are located on the same plane.

5. The battery device as claimed in claim 1, characterized in that, The equipotential bonding support includes a support bracket connected to the housing, and the limiting part is disposed on the support bracket, and the limiting part and the support bracket are an integral structure.

6. The battery device as claimed in claim 5, characterized in that, The limiting part is the groove on the support bracket.

7. The battery device as claimed in claim 1, characterized in that, The limiting part has a limiting wall surface, which forms a limiting fit with the side wall surface of the grounding harness terminal to restrict the rotation of the grounding harness terminal about the axis of the grounding harness terminal.

8. The battery device as claimed in claim 1, characterized in that, The equipotential bonding support includes multiple limiting parts.

9. The battery device as claimed in claim 8, characterized in that, The equipotential bonding support includes two connecting parts connected to the housing. The two connecting parts are respectively disposed at opposite ends of the equipotential bonding support, and the number of first locking points connecting the two connecting parts to the housing is different.

10. The battery device as claimed in claim 9, characterized in that, The equipotential bonding support further includes a support body, which is connected to the connecting part, and the two connecting parts are connected to the support body with different numbers of second locking points.

11. The battery device according to any one of claims 1-10, characterized in that, The contact surfaces between the equipotential bonding bracket and the housing, as well as the contact surfaces between the equipotential bonding bracket and the grounding harness terminal, are provided with conductive contact areas.

12. An electrical appliance, characterized in that, Includes the battery device as described in any one of claims 1-11.

13. The electrical equipment as described in claim 12, characterized in that, The electrical equipment further includes a housing with a charging opening, and the battery device is disposed inside the housing. The charging opening is corresponding to the plug end of the charging connector.

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