High voltage case, battery device, and electric device

Abstract

The application discloses a high-voltage box, a battery device and a power utilization device. The high-voltage box comprises a box body, a mounting plate and a connector. The box body is provided with a receiving space for receiving an electrical component. The box body comprises a first wall provided with a relief hole penetrating through the first wall along the thickness direction of the first wall. The mounting plate is mounted on the first wall and covers the relief hole. The mounting plate is an independent molded part relative to the box body. The mounting plate is provided with a mounting hole penetrating through the mounting plate along the axial direction of the relief hole. The projection of the mounting hole on a reference surface is located within the projection of the relief hole on the reference surface. The connector is mounted on the mounting plate. Part of the connector is located outside the box body. Another part of the connector extends into the receiving space through the mounting hole and the relief hole and is connected with the electrical component. According to the high-voltage box, when the specifications of the connector are different, only different mounting plates need to be replaced, so that the same box body can be adapted to connectors of different specifications, and the versatility of the high-voltage box is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a high-voltage box, a battery device, and an electrical device. Background Technology

[0002] High-voltage boxes, in conjunction with high-voltage connectors, enable the connection and conduction of the vehicle's high-voltage circuit. Existing high-voltage boxes lack versatility, only compatible with connectors of fixed specifications. When connector specifications change, a corresponding high-voltage box needs to be replaced, which is inconvenient; different high-voltage boxes also increase development costs. Therefore, improvements are needed. Utility Model Content

[0003] In view of the above problems, this application provides a high-voltage box, a battery device, and an electrical device. The same box can be adapted to connectors of different specifications through different mounting plates, thereby improving the versatility of the high-voltage box.

[0004] In a first aspect, this application provides a high-voltage box, including a box body, a mounting plate, and a connector. The box body has a receiving space for accommodating electrical components. The box body includes a first wall with a recessed hole extending through the first wall along its thickness direction. The mounting plate is mounted on the first wall and covers the recessed hole. The mounting plate is an independently molded part relative to the box body. The mounting plate has a mounting hole extending through the mounting plate along the axial direction of the recessed hole. The projection of the mounting hole onto a reference surface is located within the projection of the recessed hole onto the reference surface, and the reference surface is perpendicular to the axial direction of the recessed hole. The connector is mounted on the mounting plate, with a portion of the connector located outside the box body and the other portion of the connector extending into the receiving space through the mounting hole and the recessed hole and connecting to the electrical components.

[0005] In the above technical solution, the mounting plate is installed on the first wall and covers the clearance hole. The projection of the mounting hole on the reference surface is located within the projection of the clearance hole on the reference surface. Connectors that can mate with the mounting hole can pass through the clearance hole. The mounting plate is an independently molded part relative to the box body. When the specifications of the connectors are different, only different mounting plates need to be replaced, so that the same box body can be adapted to connectors of different specifications, thus improving the versatility of the high voltage box.

[0006] In some embodiments, the shape of the clearance hole is different from that of the mounting hole.

[0007] In the above technical solution, the shape of the clearance hole is different from that of the mounting hole, which allows the clearance hole to be designed into a simple shape, reducing the processing difficulty; the shape of the mounting hole matches the connector, making the mounting hole and the connector highly compatible.

[0008] In some embodiments, the clearance hole is rectangular.

[0009] In the above technical solution, the clearance hole is rectangular, and rectangular clearance holes are easy to process.

[0010] In some embodiments, the mounting plate is mounted on the outside of the housing.

[0011] In the above technical solution, the mounting plate is installed on the outside of the box, so that the mounting plate can be installed on the box from the outside. The mounting plate has a large operating space and is easy to install.

[0012] In some embodiments, the connector includes a connector body and a connection terminal connected to the connector body. The connector body is located on the side of the mounting hole opposite to the receiving space. At least a portion of the connector body is located outside the housing. The connection terminal extends through the mounting hole into the receiving space and is connected to the electrical component.

[0013] In the above technical solution, the connecting terminal extends into the receiving space through the mounting hole and connects to the electrical component. The shape of the mounting hole only needs to correspond to the connecting terminal. The small cross-sectional area of ​​the connecting terminal allows the mounting plate to be designed to accommodate more connectors of different specifications, and the housing can accommodate more connector specifications.

[0014] In some embodiments, the mounting plate is mounted on the outside of the housing, the connector body is located outside the housing, and the connection terminals extend into the receiving space through the mounting hole and the clearance hole and are connected to the electrical components.

[0015] In the above technical solution, the connecting terminal is first adapted to the mounting hole, and then extends into the receiving space through the clearance hole and connects with the electrical components, which makes the installation of the connecting terminal simple, and the connecting terminal only needs to be sealed with the mounting plate, reducing the sealing difficulty of the connecting terminal.

[0016] In some embodiments, the connecting terminal is spaced apart from the inner peripheral wall of the clearance hole.

[0017] In the above technical solution, the connecting terminal and the inner peripheral wall of the clearance hole are spaced apart, so that there is no need to seal between the connecting terminal and the inner peripheral wall of the clearance hole, which simplifies the structure of the high-voltage box.

[0018] In some embodiments, the connection terminal includes a terminal root connected to the connector body, the terminal root being received in the mounting hole, the projection of the mounting hole onto a reference surface having a similar shape to the projection of the terminal root onto the reference surface, the reference surface being perpendicular to the axial direction of the clearance hole.

[0019] In the above technical solution, the projection of the mounting hole on the reference surface is similar in shape to the projection of the terminal root on the reference surface, which enables precise positioning and matching between the mounting hole and the terminal root. This allows for rapid alignment during assembly and reduces the probability of circumferential rotation or radial offset of the terminal root within the mounting hole. At the same time, the similar contours can reduce the mating gap between the terminal root and the inner wall of the mounting hole, improving the sealing performance between the terminal root and the mounting plate and effectively preventing moisture and dust from seeping into the housing along the mating gap.

[0020] In some embodiments, the mounting hole includes a hole body and a limiting groove, the limiting groove being disposed on the inner peripheral wall of the hole body, the terminal root including a root body and a limiting protrusion, the limiting protrusion being connected to the outer peripheral wall of the root body, the root body being accommodated in the hole body, and the limiting protrusion being accommodated in the limiting groove.

[0021] In the above technical solution, the root body is accommodated in the hole body, and the limiting protrusion is accommodated in the limiting groove to limit the root of the terminal.

[0022] In some embodiments, the number of limiting grooves is multiple, and the multiple limiting grooves are spaced apart along the outer periphery of the hole body.

[0023] In the above technical solution, multiple limiting grooves are spaced apart along the outer periphery of the hole body, so that multiple positions on the periphery of the terminal root are limited.

[0024] In some embodiments, the mounting plate is detachably mounted to the first wall.

[0025] In the above technical solution, the mounting plate is detachably installed on the first wall, so that the mounting plate can be easily removed from the first wall to facilitate the replacement of different mounting plates, thereby enabling the same box to be adapted to connectors of different specifications and improving the versatility of the high voltage box.

[0026] In some embodiments, the high-voltage box further includes a first fastener, and the mounting plate is detachably mounted to the first wall via the first fastener.

[0027] In the above technical solution, the mounting plate is detachably installed on the first wall by the first fastener. The first fastener realizes reliable pressing and adhesion between the mounting plate and the first wall, so that the contact surface between the mounting plate and the first wall is evenly stressed, and at the same time effectively improves the dustproof and waterproof sealing performance of the high-voltage box.

[0028] In some embodiments, a connecting nut is provided on the side of the first wall facing the receiving space, and the first fastener passes through the mounting plate and is threadedly connected to the connecting nut.

[0029] In the above technical solution, the connecting nut strengthens the connection between the first fastener and the first wall. The connecting nut is located on the side of the first wall facing the receiving space. The housing protects the connecting nut. The connecting nut does not occupy the external space of the first wall, so that the outside of the first wall can reserve sufficient space for arranging connectors, wiring and other external components, and will not cause structural interference due to the nut protruding outward.

[0030] In some embodiments, the high-pressure box further includes a seal located between the first wall and the mounting plate and surrounding the outer periphery of the mounting hole.

[0031] In the above technical solution, the sealing element enhances the sealing between the first wall and the mounting plate, reducing the probability of water vapor, dust, and electrolyte mist seeping into the containment space from the outside of the box.

[0032] In some embodiments, the seal surrounds the outer periphery of the recess hole.

[0033] In the above technical solution, the sealing element surrounds the outer periphery of the clearance hole, reducing the probability of water vapor, dust, and electrolyte mist seeping into the containment space from the outside of the box.

[0034] In some embodiments, the seal is fixed to the mounting plate.

[0035] In the above technical solution, the seal is fixed to the mounting plate and can be assembled together with the mounting plate, eliminating the need to place the seal separately and reducing the probability of seal displacement or omission.

[0036] In some embodiments, the mounting plate is provided with a first fixing hole for connecting the mounting plate to the first wall, and the first fixing hole is located on the outer peripheral side of the seal.

[0037] In the above technical solution, the first fixing hole is located on the outer periphery of the seal. The clamping force generated when the mounting plate is connected to the first wall causes the seal to be uniformly deformed under pressure, which effectively improves the sealing, waterproofing and dustproofing effect. At the same time, the first fixing hole and the seal are separated into inner and outer sections. When the first fixing hole is locked, the probability of damaging the seal is reduced.

[0038] In some embodiments, the mounting plate is provided with a second fixing hole for connecting the mounting plate to the connector, and the second fixing hole is located on the inner circumferential side of the seal.

[0039] In the above technical solution, the second fixing hole is located on the inner circumference of the seal. The clamping force generated when the mounting plate is connected to the connector causes the seal to be uniformly deformed under pressure, which effectively improves the sealing, waterproofing and dustproofing effect. At the same time, the second fixing hole and the seal are separated into inner and outer sections. When the second fixing hole is locked, the probability of damaging the seal is reduced.

[0040] In some embodiments, the connector is detachably connected to the mounting plate.

[0041] In the above technical solution, the connector and the mounting plate are detachably connected, making the assembly and disassembly of the connector and the mounting plate simple and efficient.

[0042] In some embodiments, the high-voltage box further includes a second fastener, through which the connector is detachably connected to the mounting plate.

[0043] In the above technical solution, the connector is detachably connected to the mounting plate via a second fastener. The second fastener enables reliable pressing and bonding between the mounting plate and the connector, ensuring uniform force on the contact surfaces of the mounting plate and the connector, while effectively improving the dustproof and waterproof sealing performance of the high-voltage box.

[0044] In some embodiments, the second fastener includes a second fastening portion and a second limiting cap connected to the second fastening portion, the second fastening portion passing through the mounting plate and connected to the connector, and the second limiting cap being located on the side of the mounting plate facing the receiving space.

[0045] In the above technical solution, the second limiting cap is located on the side of the mounting plate facing the receiving space, reducing the space occupied by the mounting plate on the side facing the connector; the second fastening part passes through the mounting plate and is connected to the connector, making the connector easy to install.

[0046] Secondly, the present invention provides a battery device, including a high-voltage box according to an embodiment of the first aspect of the present invention.

[0047] In the above technical solution, the battery device includes a high-voltage box according to the first aspect of the present invention. The mounting plate is installed on the first wall and covers the clearance hole. The mounting plate is an independently molded part relative to the box body. When the specifications of the connectors are different, only different mounting plates need to be replaced, so that the same box body can be adapted to connectors of different specifications, which improves the versatility of the high-voltage box and facilitates the use of the battery device.

[0048] Thirdly, the present invention provides an electrical device, including a high-voltage box according to the first aspect of the present invention or a battery device according to the second aspect of the present invention.

[0049] In the above technical solution, the electrical device includes a high-voltage box according to the first aspect of the present invention or a battery device according to the second aspect of the present invention. The mounting plate is installed on the first wall and covers the clearance hole. The mounting plate is an independently molded part relative to the box body. When the specifications of the connectors are different, only different mounting plates need to be replaced, so that the same box body can be adapted to connectors of different specifications, which improves the versatility of the high-voltage box and facilitates the use of the electrical device.

[0050] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0051] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of a high-voltage box according to some embodiments of the present invention; Figure 2 for Figure 1 A partial exploded view of the high-voltage box; Figure 3 for Figure 2 Assembly diagram of the high-voltage box; Figure 4 for Figure 3 Front view of the high-voltage box; Figure 5 for Figure 3 Rear view of the high-voltage box; Figure 6 This is a schematic diagram of a battery device according to some embodiments of the present invention; Figure 7 This is a schematic diagram of an electrical device according to some embodiments of the present invention.

[0052] Figure label: 3000. Electrical appliances; 1000. Battery devices; 100. High-voltage box; 10. Box body; 11. Reception space; 12. First wall; 120. Clearance hole; 20. Electrical components; 30. Mounting plate; 31. Mounting hole; 310. Hole body; 311. Limiting groove; 33. First fixing hole; 32. Second fixing hole; 40. First fastener; 41. First limiting cap; 42. First fastening part; 50. Seal; 60. Second fastener; 61. Second limiting cap; 62. Second fastening part; 70. Connector; 71. Body; 710. Third fixing hole; 72. Connecting terminal; 73. Terminal root; 730. Root body; 731. Limiting protrusion; 74. Conductive part; 80. Connecting nut; 200, enclosure; 210, first enclosure; 211, second enclosure; 300, battery cell assembly; 2000, vehicle body. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order or hierarchy.

[0055] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments.

[0056] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "attachment," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this invention, 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, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0058] In the embodiments of this utility model, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this utility model shown in the drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this utility model.

[0059] In this utility model, "multiple" refers to two or more.

[0060] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0061] In the embodiments of this utility model, unless otherwise specified, all embodiments and optional embodiments of this utility model can be combined with each other to form new technical solutions.

[0062] In the embodiments of this utility model, unless otherwise specified, all technical features and optional technical features of this utility model can be combined with each other to form new technical solutions.

[0063] In embodiments of this invention, the battery device may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar. For example, a battery cell assembly is typically formed by arranging multiple battery cells; a battery cell assembly may also be a battery module, which is formed by arranging and fixing multiple battery cells into a single module. As an example, a battery module may be formed by bundling multiple battery cells together with cable ties.

[0064] The battery device can be a battery pack, which includes a housing and one or more individual battery cells housed within the housing. The individual battery cells can be battery modules, which can be housed within the housing by fixing the battery modules to the housing; alternatively, multiple individual battery cells can be housed within the housing by directly fixing them to the housing.

[0065] In embodiments of this application, the housing may include a first housing and a second housing. The first housing and the second housing are fastened together to form a closed space inside the housing for housing individual battery cells. Here, "closed" refers to covering or shutting down; it can be sealed or unsealed. The first housing may be a top cover or a bottom plate. For example, the housing may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, forming a closed space inside the housing for housing individual battery cells.

[0066] In embodiments of this application, the housing can be part of the vehicle's chassis structure. For example, a portion of the housing can be at least a part of the vehicle's floor, or a portion of the housing can be at least a part of the vehicle's crossbeams and longitudinal beams.

[0067] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0068] The dimensions of the holes connecting the high-voltage box and the connector are fixed, so the high-voltage box can only be used with connectors of a fixed specification. When the connector specification changes, a corresponding high-voltage box needs to be replaced, which is inconvenient to use; different high-voltage boxes also require redesigning their internal components, increasing R&D costs and time.

[0069] To improve the versatility of high-voltage boxes, this application provides a high-voltage box including a box body, a mounting plate, and a connector. The box body has a receiving space for accommodating electrical components. The box body includes a first wall with a clearance hole extending through the first wall along its thickness direction. The mounting plate is mounted on the first wall and covers the clearance hole. The mounting plate is an independently molded part relative to the box body and has a mounting hole extending through the mounting hole along its axial direction. The connector is mounted on the mounting plate, with one part of the connector located outside the box body and the other part of the connector extending into the receiving space through the mounting hole and the clearance hole and connecting to the electrical components.

[0070] In the above technical solution, the mounting plate is installed on the first wall and covers the clearance hole. The mounting plate is an independent molded part relative to the box body. When the specifications of the connectors are different, only different mounting plates need to be replaced, so that the same box body can be adapted to connectors of different specifications, thus improving the versatility of the high voltage box.

[0071] The battery device disclosed in this application can be used in electrical devices that use batteries as a power source or in various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0072] The electrical devices disclosed in this application can be gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device is installed inside the vehicle, and the battery device can be located at the bottom, front, or rear of the vehicle. The battery device can be used to power the vehicle; for example, the battery device can serve as the vehicle's operating power source. The vehicle may also include a controller and a motor. The controller is used to control the battery device to supply power to the motor, for example, for the vehicle's starting, navigation, and operating power needs. In some embodiments of this application, the battery device can not only serve as the vehicle's operating power source but also as the vehicle's drive power source, replacing or partially replacing gasoline or natural gas to provide driving power for the vehicle.

[0073] The following is for reference. Figures 1-7 This invention describes a high-voltage box, a battery device, and an electrical device according to embodiments of the present invention.

[0074] refer to Figures 1-2In a first aspect, this utility model provides a high-voltage box 100, including a box body 10, a mounting plate 30, and a connector 70. The box body 10 has a receiving space 11 for receiving electrical components 20. The box body 10 includes a first wall 12, and the first wall 12 has a clearance hole 120 extending through the first wall 12 along its thickness direction. The mounting plate 30 is mounted on the first wall 12 and covers the clearance hole 120. The mounting plate 30 is an independently molded part relative to the box body 10. The mounting plate 30 has a mounting hole 31 extending through the mounting plate 30 along the axial direction of the clearance hole 120. The projection of the mounting hole 31 on a reference surface is located within the projection of the clearance hole 120 on the reference surface, and the reference surface is perpendicular to the axial direction of the clearance hole 120. The connector 70 is mounted on the mounting plate 30. Part of the connector 70 is located outside the box body 10, and the other part of the connector 70 extends into the receiving space 11 through the mounting hole 31 and the clearance hole 120 and connects to the electrical components 20.

[0075] The high-voltage box 100 is used to house high-voltage components such as fuses, copper busbars, relays, and BMS acquisition terminals, reducing the probability of these components being directly exposed. When used in vehicles, the high-voltage box 100 can centrally enclose the entire vehicle's high-voltage circuit, reducing the probability of personnel touching high-voltage live parts; at the same time, it isolates high and low voltage lines, reducing the probability of creepage, short circuits, and arcing.

[0076] The box body 10 can be a hollow cuboid structure. The outer surface of the first wall 12 can be a planar structure, which facilitates the opening of the clearance hole 120 and the installation of the mounting plate 30.

[0077] Electrical component 20 may be one or more of the following: high-voltage copper busbar, DC contactor, fuse, pre-charge resistor, current sensor, voltage acquisition terminal, MSD maintenance switch, and insulating support.

[0078] The first wall 12 can be the side wall or the top wall of the box 10.

[0079] Mounting plate 30 can be a flat plate structure, which is simple and easy to manufacture.

[0080] See Figure 4 The mounting plate 30 is installed on the first wall 12 and covers the clearance hole 120, indicating that the edges of the mounting plate 30 are all in contact with the first wall 12 around the clearance hole 120.

[0081] The mounting plate 30 is an independently molded part relative to the box body 10. This means that the mounting plate 30 and the box body 10 are processed by separate mold opening and injection / stamping. They are not integrally cast or bent into a whole structure. During assembly, the independent mounting plate 30 is fixed to the first wall 12 of the box body 10.

[0082] See Figure 2For example, the projection of the clearance hole 120 onto the reference surface is rectangular, the projection of the mounting hole 31 onto the reference surface is irregular, the area of ​​the shape formed by the outline of the projection of the mounting hole 31 onto the reference surface is smaller than the area of ​​the shape formed by the outline of the projection of the clearance hole 120 onto the reference surface, and the projection of the mounting hole 31 onto the reference surface is located inside the projection of the clearance hole 120 onto the reference surface, so that the connector 70 passing through the mounting hole 31 can also pass through the clearance hole 120.

[0083] In the above technical solution, the mounting plate 30 is installed on the first wall 12 and covers the clearance hole 120. The mounting plate 30 is an independently molded part relative to the box body 10. The projection of the mounting hole 31 on the reference surface is located within the projection of the clearance hole 120 on the reference surface. The connector 70 that can cooperate with the mounting hole 31 can pass through the clearance hole 120. When the specifications of the connector 70 are different, only different mounting plates 30 need to be replaced, so that the same box body 10 can be adapted to connectors 70 of different specifications, thereby improving the versatility of the high voltage box 100.

[0084] See Figure 2 In some embodiments, the shape of the clearance hole 120 is different from that of the mounting hole 31.

[0085] For example, the clearance hole 120 is a regular rectangle, and the shape of the mounting hole 31 matches that of the connector 70.

[0086] In the above technical solution, the shape of the clearance hole 120 is different from that of the mounting hole 31, so that the clearance hole 120 can be designed into a simple shape, reducing the processing difficulty; the shape of the mounting hole 31 matches that of the connector 70, so that the mounting hole 31 and the connector 70 have strong compatibility.

[0087] See Figure 2 In some embodiments, the clearance hole 120 is rectangular.

[0088] In the above technical solution, the clearance hole 120 is rectangular, and the rectangular clearance hole 120 is simple to process.

[0089] See Figure 1 In some embodiments, the mounting plate 30 is mounted on the outside of the housing 10.

[0090] In the above technical solution, the mounting plate 30 is installed on the outside of the box 10, so that the mounting plate 30 can be installed on the box 10 from the outside of the box 10. The mounting plate 30 has a large operating space and is easy to install.

[0091] See Figure 2In some embodiments, the connector 70 includes a connector body 71 and a connection terminal 72 connected to the connector body 71. The connector body 71 is located on the side of the mounting hole 31 away from the receiving space 11. At least a portion of the connector body 71 is located outside the housing 10. The connection terminal 72 extends into the receiving space 11 through the mounting hole 31 and is connected to the electrical component 20.

[0092] For example, a third fixing hole 710 may be provided on the side of the connector body 71 facing the mounting plate 30. The third fixing hole 710 is used for connecting the connector 70 to the mounting plate 30. There may be multiple third fixing holes 710, which are located on the outer periphery of the connecting terminal 72 and surround the connecting terminal 72.

[0093] In the above technical solution, the connecting terminal 72 extends into the receiving space 11 through the mounting hole 31 and is connected to the electrical component 20. The shape of the mounting hole 31 only needs to correspond to the connecting terminal 72. The small cross-sectional area of ​​the connecting terminal 72 allows the mounting plate 30 to be designed to accommodate more connectors 70 of different specifications, and the housing 10 can accommodate more connector specifications.

[0094] See Figure 3 In some embodiments, the mounting plate 30 is mounted on the outside of the housing 10, the connector body 71 is located outside the housing 10, and the connection terminal 72 extends into the receiving space 11 through the mounting hole 31 and the clearance hole 120 and is connected to the electrical component 20.

[0095] In the above technical solution, the connecting terminal 72 is first adapted to the mounting hole 31, and then extends into the receiving space 11 through the clearance hole 120 and is connected to the electrical component 20, which makes the installation of the connecting terminal 72 simple, and the connecting terminal 72 only needs to be sealed with the mounting plate 30, reducing the sealing difficulty of the connecting terminal 72.

[0096] See Figure 5 In some embodiments, the connecting terminal 72 is spaced apart from the inner peripheral wall of the clearance hole 120.

[0097] In the above technical solution, the connecting terminal 72 and the inner peripheral wall of the clearance hole 120 are spaced apart, so that there is no need to seal between the connecting terminal 72 and the inner peripheral wall of the clearance hole 120, which simplifies the structure of the high voltage box 100.

[0098] See Figure 2 In some embodiments, the connecting terminal 72 includes a terminal root 73 connected to the connector body 71. The terminal root 73 is received in a mounting hole 31. The projection of the mounting hole 31 onto a reference surface has a similar shape to the projection of the terminal root 73 onto a reference surface. The reference surface is perpendicular to the axial direction of the clearance hole 120.

[0099] For example, the connecting terminal 72 also includes a conductive part 74, which is installed at the terminal root 73. The conductive part 74 extends into the receiving space 11 through the mounting hole 31 and the clearance hole 120 and is connected to the electrical component 20.

[0100] In the above technical solution, the projection of the mounting hole 31 on the reference surface is similar in shape to the projection of the terminal root 73 on the reference surface, so that the mounting hole 31 and the terminal root 73 are precisely positioned and matched, and can be quickly aligned during assembly, reducing the probability of circumferential rotation and radial displacement of the terminal root 73 in the mounting hole 31; at the same time, the similar contour can reduce the mating gap between the terminal root 73 and the inner wall of the mounting hole 31, improve the sealing performance between the terminal root 73 and the mounting plate 30, and effectively prevent moisture and dust from seeping into the interior of the housing 10 along the mating gap.

[0101] See Figure 2 In some embodiments, the mounting hole 31 includes a hole body 310 and a limiting groove 311. The limiting groove 311 is disposed on the inner peripheral wall of the hole body 310. The terminal root 73 includes a root body 730 and a limiting protrusion 731. The limiting protrusion 731 is connected to the outer peripheral wall of the root body 730. The root body 730 is accommodated in the hole body 310, and the limiting protrusion 731 is accommodated in the limiting groove 311.

[0102] For example, both the hole body 310 and the limiting groove 311 are rectangular.

[0103] In the above technical solution, the root body 730 is accommodated in the hole body 310, and the limiting protrusion 731 is accommodated in the limiting groove 311 to limit the terminal root 73.

[0104] See Figure 2 In some embodiments, there are multiple limiting grooves 311, and the multiple limiting grooves 311 are spaced apart along the outer periphery of the hole body 310.

[0105] For example, the number or size of the limiting grooves 311 on different outer peripheral sides of the hole body 310 can be different to reduce the probability of incorrect installation when the terminal root 73 is installed.

[0106] In the above technical solution, multiple limiting grooves 311 are spaced along the outer periphery of the hole body 310, so that multiple positions on the periphery of the terminal root 73 are limited.

[0107] See Figure 2 In some embodiments, the mounting plate 30 is detachably mounted to the first wall 12.

[0108] In the above technical solution, the mounting plate 30 is detachably mounted on the first wall 12, so that the mounting plate 30 can be easily removed from the first wall 12 to facilitate the replacement of different mounting plates 30, thereby enabling the same box 10 to be adapted to connectors of different specifications, improving the versatility of the high voltage box 100.

[0109] See Figure 2 In some embodiments, the high-voltage box 100 further includes a first fastener 40, and the mounting plate 30 is detachably mounted to the first wall 12 via the first fastener 40.

[0110] For example, the first fastener 40 may include a first limiting cap 41 and a first fastening part 42 connected axially to the first limiting cap 41. The cross-sectional dimension of the first fastening part 42 is smaller than that of the first limiting cap 41. When the first fastener 40 is installed, the first limiting cap 41 abuts against the outer surface of the mounting plate 30, and the first fastening part 42 passes through the first fixing hole 33 and engages with the first wall 12.

[0111] In the above technical solution, the mounting plate 30 is detachably mounted to the first wall 12 by the first fastener 40. The first fastener 40 realizes reliable pressing and adhesion between the mounting plate 30 and the first wall 12, so that the contact surface between the mounting plate 30 and the first wall 12 is evenly stressed, and at the same time effectively improves the dustproof and waterproof sealing performance of the high-voltage box 100.

[0112] See Figure 2 as well as Figure 3 In some embodiments, a connecting nut 80 is provided on the side of the first wall 12 facing the receiving space 11, and a first fastener 40 passes through the mounting plate 30 and is threadedly connected to the connecting nut 80.

[0113] For example, the first fastening part 42 is provided with external threads, and the connecting nut 80 is provided with internal threads. The first fastening part 42 is threadedly connected to the connecting nut 80.

[0114] In the above technical solution, the connecting nut 80 strengthens the connection between the first fastener 40 and the first wall 12. The connecting nut 80 is located on the side of the first wall 12 facing the receiving space 11. The box 10 protects the connecting nut 80. The connecting nut 80 does not occupy the external space of the first wall 12, so that the outside of the first wall 12 can reserve sufficient space for arranging connectors, wiring and other external components, and will not cause structural interference due to the nut protruding outward.

[0115] See Figure 2 In some embodiments, the high-pressure box 100 further includes a seal 50 located between the first wall 12 and the mounting plate 30 and surrounding the outer periphery of the mounting hole 31.

[0116] For example, the seal 50 is a sealing ring, and the shape of the seal 50 corresponds to the clearance hole 120.

[0117] In the above technical solution, the sealing element 50 enhances the sealing between the first wall 12 and the mounting plate 30, reducing the probability that water vapor, dust, and electrolyte mist at the mounting hole 31 will seep into the containment space 11 from outside the box 10.

[0118] See Figure 2 In some embodiments, the seal 50 surrounds the outer periphery of the recess hole 120.

[0119] In the above technical solution, the sealing element 50 surrounds the outer periphery of the clearance hole 120, reducing the probability that water vapor, dust, and electrolyte mist at the clearance hole 120 will seep into the containment space 11 from outside the box 10.

[0120] See Figure 2 In some embodiments, the seal 50 is fixed to the mounting plate 30.

[0121] For example, the seal 50 can be directly fixed to the mounting plate 30 with glue, or the seal 50 can be installed on the mounting plate 30 through a groove.

[0122] In the above technical solution, the seal 50 is fixed to the mounting plate 30, and the seal 50 can be assembled together with the mounting plate 30, eliminating the need to place the seal 50 separately and reducing the probability of the seal 50 being misplaced or missing.

[0123] See Figure 2 In some embodiments, the mounting plate 30 is provided with a first fixing hole 33, which is used to connect the mounting plate 30 to the first wall 12. The first fixing hole 33 is located on the outer periphery of the seal 50.

[0124] For example, the first fixing hole 33 can be a circular hole.

[0125] In the above technical solution, the first fixing hole 33 is located on the outer periphery of the sealing element 50. The clamping force generated when the mounting plate 30 is connected to the first wall 12 causes the sealing element 50 to be uniformly deformed under pressure, which effectively improves the sealing, waterproof and dustproof effect. At the same time, the first fixing hole 33 and the sealing element 50 are set in separate inner and outer sections. When the first fixing hole 33 is locked, the probability of damaging the sealing element 50 is reduced.

[0126] See Figure 2 In some embodiments, the mounting plate 30 is provided with a second fixing hole 32, which is used to connect the mounting plate 30 to the connector 70. The second fixing hole 32 is located on the inner circumferential side of the seal 50.

[0127] For example, the second fixing hole 32 can be a circular hole.

[0128] In the above technical solution, the second fixing hole 32 is located on the inner circumference of the seal 50. The clamping force generated when the mounting plate 30 is connected to the connector 70 causes the seal 50 to be uniformly deformed under pressure, which effectively improves the sealing, waterproof and dustproof effect. At the same time, the second fixing hole 32 and the seal 50 are set in separate inner and outer sections. When the second fixing hole 32 is locked, the probability of damaging the seal 50 is reduced.

[0129] See Figure 2 In some embodiments, connector 70 is detachably connected to mounting plate 30.

[0130] For example, a third fixing hole 710 can be provided on the side of the connector body 71 facing the mounting plate 30. The third fixing hole 710 is used for detachable connection between the connector 70 and the mounting plate 30. The position of the third fixing hole 710 corresponds to the position of the first fixing hole 33.

[0131] In the above technical solution, the connector 70 and the mounting plate 30 are detachably connected, making the assembly and disassembly of the connector 70 and the mounting plate 30 simple and efficient.

[0132] See Figure 2 In some embodiments, the high-voltage box 100 further includes a second fastener 60, through which the connector 70 is detachably connected to the mounting plate 30.

[0133] In the above technical solution, the connector 70 is detachably connected to the mounting plate 30 via the second fastener 60. The second fastener 60 enables reliable pressing and bonding between the mounting plate 30 and the connector 70, so that the contact surfaces of the mounting plate 30 and the connector 70 are evenly stressed, while effectively improving the dustproof and waterproof sealing performance of the high-voltage box 100.

[0134] See Figure 2 In some embodiments, the second fastener 60 includes a second fastening portion 62 and a second limiting cap 61 connected to the second fastening portion 62. The second fastening portion 62 passes through the mounting plate 30 and is connected to the connector 70. The second limiting cap 61 is located on the side of the mounting plate 30 facing the receiving space 11.

[0135] For example, the cross-sectional area of ​​the second limiting cap 61 is larger than the cross-sectional area of ​​the second fastening part 62. The end of the second limiting cap 61 abuts against the mounting plate 30.

[0136] In the above technical solution, the second limiting cap 61 is located on the side of the mounting plate 30 facing the receiving space 11, reducing the space occupied by the mounting plate 30 on the side facing the connector 70; the second fastening part 62 passes through the mounting plate 30 and is connected to the connector 70, making it easy to install the connector 70.

[0137] See Figure 6Secondly, the present invention provides a battery device 1000, including a high-voltage box 100 according to an embodiment of the first aspect of the present invention.

[0138] For example, the battery device 1000 also includes a housing 200 and a battery cell assembly 300 located inside the housing 200. The housing 200 may include a first housing 210 and a second housing 211, which are fastened together to form a closed space inside the housing 200 to house the battery cell assembly 300.

[0139] The high-voltage box 100 can be installed inside the enclosed space of the enclosure 200, or it can be installed outside the enclosure 200.

[0140] In the above technical solution, the battery device 1000 includes a high-voltage box 100 according to the first aspect of the present invention, with a mounting plate 30 mounted on the first wall 12 and covering the clearance hole 120. The mounting plate 30 is an independently molded part relative to the box body 10. When the specifications of the connector 70 are different, only different mounting plates 30 need to be replaced, so that the same box body 10 can be adapted to connectors 70 of different specifications, thereby improving the versatility of the high-voltage box 100 and facilitating the use of the battery device 1000.

[0141] Thirdly, the present invention provides an electrical device 3000, including a high-voltage box 100 according to the first aspect of the present invention or a battery device 1000 according to the second aspect of the present invention.

[0142] The electrical device 3000 can be a vehicle, and the battery device 1000 can be installed at the bottom of the vehicle body 2000.

[0143] In the above technical solution, the electrical device 3000 includes a high-voltage box 100 according to the first aspect of the present invention or a battery device 1000 according to the second aspect of the present invention. The mounting plate 30 is mounted on the first wall 12 and covers the clearance hole 120. The mounting plate 30 is an independently molded part relative to the box body 10. When the specifications of the connector 70 are different, only different mounting plates 30 need to be replaced, so that the same box body 10 can be adapted to connectors of different specifications, which improves the versatility of the high-voltage box 100 and facilitates the use of the electrical device 3000.

[0144] The following reference Figures 1-5 Description of a high-voltage box 100 according to some embodiments of the present invention.

[0145] In this embodiment, the high-voltage box 100 includes a box body 10, a mounting plate 30, and a connector 70. The box body 10 has a receiving space 11 for receiving electrical components 20. The box body 10 includes a first wall 12, which has a clearance hole 120 extending through the first wall 12 along its thickness direction. The mounting plate 30 is mounted on the first wall 12 and covers the clearance hole 120. The mounting plate 30 is an independently molded part relative to the box body 10. The mounting plate 30 has a mounting hole 31 extending through the mounting plate 30 along the axial direction of the clearance hole 120. The connector 70 is mounted on the mounting plate 30. Part of the connector 70 is located outside the box body 10, and the other part of the connector 70 extends into the receiving space 11 through the mounting hole 31 and the clearance hole 120 and connects to the electrical components 20.

[0146] The projection of the mounting hole 31 onto the reference plane lies within the projection of the clearance hole 120 onto the reference plane, and the reference plane is perpendicular to the axial direction of the clearance hole 120. The clearance hole 120 has a different shape from the mounting hole 31. The clearance hole 120 is rectangular.

[0147] Mounting plate 30 is mounted on the outside of housing 10. Connector 70 includes connector body 71 and connecting terminal 72 connected to connector body 71. Connector body 71 is located on the side of mounting hole 31 opposite to receiving space 11. At least a portion of connector body 71 is located outside housing 10. Connecting terminal 72 extends into receiving space 11 through mounting hole 31 and connects to electrical component 20. Connecting terminal 72 is spaced apart from inner peripheral wall of recess hole 120. Connecting terminal 72 includes terminal root 73 connected to connector body 71. Terminal root 73 is received in mounting hole 31. The projection of mounting hole 31 on reference plane is similar in shape to the projection of terminal root 73 on reference plane. Reference plane is perpendicular to axial direction of recess hole 120.

[0148] The mounting hole 31 includes a hole body 310 and a limiting groove 311. The limiting groove 311 is disposed on the inner peripheral wall of the hole body 310. The terminal root 73 includes a root body 730 and a limiting protrusion 731. The limiting protrusion 731 is connected to the outer peripheral wall of the root body 730. The root body 730 is accommodated in the hole body 310, and the limiting protrusion 731 is accommodated in the limiting groove 311. There are multiple limiting grooves 311, which are spaced apart along the outer peripheral side of the hole body 310.

[0149] The mounting plate 30 is detachably mounted to the first wall 12. The high-voltage box 100 also includes a first fastener 40, through which the mounting plate 30 is detachably mounted to the first wall 12. A connecting nut 80 is provided on the side of the first wall 12 facing the receiving space 11, and the first fastener 40 passes through the mounting plate 30 and is threadedly connected to the connecting nut 80.

[0150] The high-voltage box 100 also includes a seal 50, which is located between the first wall 12 and the mounting plate 30 and surrounds the outer periphery of the mounting hole 31. The seal 50 surrounds the outer periphery of the clearance hole 120. The seal 50 is fixed to the mounting plate 30.

[0151] The mounting plate 30 is provided with a first fixing hole 33, which is used to connect the mounting plate 30 to the first wall 12. The first fixing hole 33 is located on the outer peripheral side of the seal 50. The mounting plate 30 is provided with a second fixing hole 32, which is used to connect the mounting plate 30 to the connector 70. The second fixing hole 32 is located on the inner peripheral side of the seal 50.

[0152] The connector 70 is detachably connected to the mounting plate 30. The high-voltage box 100 also includes a second fastener 60, through which the connector 70 is detachably connected to the mounting plate 30. The second fastener 60 includes a second fastening part 62 and a second limiting cap 61 connected to the second fastening part 62. The second fastening part 62 passes through the mounting plate 30 and is connected to the connector 70. The second limiting cap 61 is located on the side of the mounting plate 30 facing the receiving space 11.

[0153] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0154] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-voltage box, characterized in that, include: The housing has a receiving space for accommodating electrical components. The housing includes a first wall with a clearance hole extending through the first wall along its thickness direction. Mounting plate, mounted on the first wall and covering the clearance hole, the mounting plate is an independent molded part relative to the box body, the mounting plate is provided with mounting hole through the mounting plate along the axial direction of the clearance hole, the projection of the mounting hole on the reference surface is located within the projection of the clearance hole on the reference surface, and the reference surface is perpendicular to the axial direction of the clearance hole; A connector is mounted on the mounting plate, with one part of the connector located outside the housing and the other part of the connector extending into the receiving space through the mounting hole and the clearance hole and connecting to the electrical component.

2. The high-voltage box according to claim 1, characterized in that, The shape of the clearance hole is different from that of the mounting hole; and / or, the clearance hole is rectangular.

3. The high-voltage box according to claim 1, characterized in that, The mounting plate is installed on the outside of the box.

4. The high-voltage box according to claim 1, characterized in that, The connector includes a connector body and a connection terminal connected to the connector body. The connector body is located on the side of the mounting hole away from the receiving space. At least a portion of the connector body is located outside the housing. The connection terminal extends into the receiving space through the mounting hole and is connected to the electrical component.

5. The high-voltage box according to claim 4, characterized in that, The mounting plate is installed on the outside of the housing, the connector body is located outside the housing, and the connection terminal extends into the receiving space through the mounting hole and the clearance hole and connects to the electrical component.

6. The high-voltage box according to claim 5, characterized in that, The connecting terminal is spaced apart from the inner peripheral wall of the clearance hole.

7. The high-voltage box according to claim 5, characterized in that, The connection terminal includes a terminal root that is connected to the connector body. The terminal root is accommodated in the mounting hole. The projection of the mounting hole onto the reference surface has a similar shape to the projection of the terminal root onto the reference surface. The reference surface is perpendicular to the axial direction of the clearance hole.

8. The high-voltage box according to claim 7, characterized in that, The mounting hole includes a hole body and a limiting groove. The limiting groove is disposed on the inner peripheral wall of the hole body. The terminal root includes a root body and a limiting protrusion. The limiting protrusion is connected to the outer peripheral wall of the root body. The root body is accommodated in the hole body, and the limiting protrusion is accommodated in the limiting groove.

9. The high-voltage box according to claim 8, characterized in that, The number of the limiting grooves is multiple, and the multiple limiting grooves are spaced apart along the outer periphery of the hole body.

10. The high-voltage box according to any one of claims 1-9, characterized in that, The mounting plate is detachably mounted on the first wall.

11. The high-voltage box according to claim 10, characterized in that, The high-voltage box also includes a first fastener, and the mounting plate is detachably mounted to the first wall via the first fastener.

12. The high-voltage box according to claim 11, characterized in that, A connecting nut is provided on the side of the first wall facing the receiving space, and the first fastener passes through the mounting plate and is threadedly connected to the connecting nut.

13. The high-voltage box according to any one of claims 1-9, characterized in that, The high-pressure box also includes a seal located between the first wall and the mounting plate and surrounding the outer periphery of the mounting hole.

14. The high-voltage box according to claim 13, characterized in that, The seal surrounds the outer periphery of the recessed hole; and / or, the seal is fixed to the mounting plate.

15. The high-voltage box according to claim 13, characterized in that, The mounting plate is provided with a first fixing hole, which is used to connect the mounting plate to the first wall. The first fixing hole is located on the outer peripheral side of the sealing element. And / or, the mounting plate is provided with a second fixing hole, the second fixing hole being used for connecting the mounting plate to the connector, the second fixing hole being located on the inner circumferential side of the seal.

16. The high-voltage box according to any one of claims 1-9, characterized in that, The connector is detachably connected to the mounting plate.

17. The high-voltage box according to claim 16, characterized in that, The high-voltage box also includes a second fastener, through which the connector is detachably connected to the mounting plate.

18. The high-voltage box according to claim 17, characterized in that, The second fastener includes a second fastening part and a second limiting cap connected to the second fastening part. The second fastening part passes through the mounting plate and is connected to the connector. The second limiting cap is located on the side of the mounting plate facing the receiving space.

19. A battery device, characterized in that, Includes the high-voltage box according to any one of claims 1-18.

20. An electrical device, characterized in that, Includes the high-voltage box according to any one of claims 1-18 or the battery device according to claim 19.

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