Shell structure for electric appliance, high-voltage box, battery and electric equipment

Abstract

The utility model relates to the technical field of batteries, and provides a shell structure for an electric appliance, a high-voltage box, a battery and electric equipment, and the shell structure for the electric appliance comprises a lower shell, an upper cover and a protective cover. A clamping part is arranged on the lower shell; the upper cover and the lower shell cover each other to form an accommodating cavity, and the accommodating cavity is used for accommodating an electrical assembly; the protective cover comprises a cover body, a clamping structure and an elastic connecting structure used for connecting the cover body and the clamping structure, and the clamping structure is connected with the clamping part in a clamping mode so that the cover body and the lower shell can cover the output end of the electrical assembly. According to the shell structure for the electric appliance, the upper cover and the lower shell do not need to be disassembled and assembled in the scene of maintaining the output end of the electric component, only the protective cover is disassembled and assembled, the overall size of the protective cover can be designed to be miniaturized, and the requirement for rapid disassembly and assembly is better met.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular provides a shell structure for an electrical appliance, a high-voltage box, a battery and electrical equipment. Background Art

[0002] A high-voltage box typically includes a housing, electrical components housed within the housing, and a busbar structure connected to the output terminals of the electrical components. The housing comprises an upper and lower housing that interlock, forming the connection between the electrical components' output terminals and the busbar structure. Consequently, routine maintenance, especially checking the structural stability of the connection between the electrical components' output terminals and the busbar structure, requires frequent disassembly of the housing, resulting in a time-consuming and labor-intensive process. Utility Model Content

[0003] The purpose of the utility model is to provide a housing structure for an electrical appliance, a high-voltage box, a battery and an electrical device, aiming to solve the problem that the existing housing structure for an electrical appliance is difficult to disassemble and assemble.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, an embodiment of the present application provides a housing structure for an electrical appliance, comprising:

[0006] A lower shell, wherein the lower shell is provided with a clamping portion;

[0007] An upper cover, the upper cover and the lower shell body being combined to form a receiving cavity, the receiving cavity being used to receive the electrical components;

[0008] The protective cover includes a cover body, a snap-fit ​​structure, and an elastic connection structure for connecting the cover body and the snap-fit ​​structure. The snap-fit ​​structure is snap-fitted to the snap-fit ​​portion so that the cover body and the lower shell cover the output end of the electrical component.

[0009] Beneficial effects of the embodiments of the present application: The housing structure for electrical appliances provided by the present application is a detachable connection method between the lower shell and the protective cover for forming a cover covering the output end of the electrical component. Specifically, the snap-fit ​​structure on the protective cover is snap-fitted to the snap-fit ​​portion, and the elastic connection structure provides the deformation space and structural support required when the snap-fit ​​structure is separated from the snap-fit ​​portion, so that the cover can be smoothly separated from the lower shell, and at the same time, it also meets the needs of rapid assembly. In this way, in the scenario of repairing the output end of the electrical component, there is no need to disassemble the upper cover and the lower shell, and only the protective cover needs to be disassembled. The overall volume of the protective cover can be miniaturized to better meet the needs of rapid disassembly and assembly.

[0010] In some embodiments, the elastic connection structure and the clamping structure are provided on two opposite ends of the cover body.

[0011] By adopting the above technical solution, the cover body is simultaneously engaged with or separated from the corresponding engaging portions by the engaging structures on the two ends, so as to meet the requirements of assembly and disassembly with the lower shell.

[0012] In some embodiments, a hinge portion is provided on the lower shell, one of the two opposite ends of the cover body is provided with the elastic connection structure and the snap-on structure, and the other of the two ends of the cover body is provided with a hinge matching portion adapted to the hinge portion.

[0013] By adopting the above technical solution, the snap-fit ​​structure on one end of the cover body is snap-fitted with the snap-fit ​​portion on the lower shell, and the hinged fitting portion on the other end of the cover body is hingedly fitted with the hinged portion of the lower shell, so that the cover body can be quickly disassembled and assembled with the lower shell on one side. At the same time, the hinged fitting method can also enable the cover body to always remain on the lower shell during the disassembly and assembly process. Then, the cover body can be quickly connected during the disassembly and assembly process, which is more efficient.

[0014] In some embodiments, the end of the cover body has a mounting surface, the elastic connection structure is provided on the mounting surface, and the clamping structure is provided on a side of the elastic connection structure away from the mounting surface.

[0015] By adopting the above technical solution, the clip-on structure is set away from the mounting surface on the basis of the elastic connection structure, so that a certain gap is formed between the clip-on structure and the mounting surface, providing space requirements for the clip-on structure and the clip-on part to be clipped together, so that the clip-on structure can be smoothly separated from the clip-on part.

[0016] In some embodiments, the elastic connection structure includes a connection block.

[0017] By adopting the above technical solution, the connecting block can provide the corresponding connection requirements for the clamping structure and meet the requirements of separating the clamping structure from the installation surface.

[0018] In some embodiments, a mounting surface is provided at the end of the cover body, and protrusions are provided on the mounting surface at intervals. One end of the elastic connection structure is connected to the corresponding protrusion and the other end is connected to the clip structure, and a gap is formed between the clip structure and the mounting surface.

[0019] By adopting the above technical solution, the protrusion is used to form a gap between the clipping structure and the mounting surface to meet the deformation space required by the clipping structure. At the same time, the elastic connection structure is used to connect the protrusion and the clipping structure to provide the connection requirements between the clipping structure and the cover body, as well as the deformation requirements required for it to cooperate with the clipping part.

[0020] In some embodiments, the elastic connection structure includes a connecting rod.

[0021] By adopting the above technical solution, the connecting rod can provide the corresponding connection requirements for the clamping structure, as well as the deformation requirements required for the clamping structure to be engaged with the clamping portion.

[0022] In some embodiments, a mounting surface is provided at the end of the cover body, and protrusions are provided on the mounting surface. The elastic connection structure includes a connecting rod and a connecting block. The connecting block is provided on the mounting surface and connected to the clamping structure. One end of the connecting rod is connected to the corresponding protrusion and the other end is connected to the clamping structure.

[0023] By adopting the above technical solution, the protrusion is used to form a gap between the clip structure and the mounting surface to meet the deformation space required by the clip structure. At the same time, the connecting rod and the connecting block jointly provide the connection requirements between the clip structure and the cover body, as well as the deformation requirements required for the clip structure to cooperate with the clip part.

[0024] In some embodiments, the clamping structure includes a clamping body and a pressing portion provided on the clamping body, and the clamping body is provided with a clamping matching portion adapted to the clamping portion.

[0025] By adopting the above technical solution, after pressing the pressing portion, the clamping body is driven away from the installation surface of the cover body, so that the clamping body is separated from the clamping fitting portion, and finally, the cover body is separated from the lower shell.

[0026] In some embodiments, the snap-fitting portion includes a snap-fitting hole formed on the snap-fitting body, and the snap-fitting structure further includes a reinforcing portion provided on the snap-fitting body.

[0027] By adopting the above technical solution, the clamping portion is clamped in the clamping hole to achieve a clamping connection between the cover body and the lower shell body. At the same time, the reinforcement portion is used to improve the structural strength of the clamping body itself.

[0028] In a second aspect, the present application further provides a high-voltage box, comprising the above-mentioned housing structure for electrical appliances.

[0029] In a third aspect, the present application also provides a battery comprising the high-voltage box described above.

[0030] In a fourth aspect, the present application also provides an electrical device comprising the battery described above.

[0031] It can be understood that the beneficial effects of the second, third and fourth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 A schematic diagram of the structure of an electrical device provided in an embodiment of the present utility model;

[0034] Figure 2 A schematic diagram of the structure of a battery provided in an embodiment of the present utility model;

[0035] Figure 3 A schematic structural diagram of a high-voltage box provided in an embodiment of the present utility model;

[0036] Figure 4 An exploded view of a high-voltage box provided in an embodiment of the present utility model;

[0037] Figure 5 A schematic structural diagram of a protective cover for an electrical appliance housing structure provided in Example 1 of the present utility model;

[0038] Figure 6 This is a structural schematic diagram of a protective cover of a housing structure for an electrical appliance provided in Example 2 of the present utility model.

[0039] Among them, the reference numerals in the figures are:

[0040] 10000, electrical equipment; 1000, controller; 2000, motor;

[0041] 3000, battery; 3001, battery case; 30011, first part; 30012, second part; 3002, battery cell;

[0042] 100. High-voltage box; 101. Electrical components; 102. Housing structure for electrical appliances;

[0043] 10. Lower housing; 11. Clamping portion; 20. Upper cover;

[0044] 30. Protective cover; 31. Cover body; 32. Snap-fit ​​structure; 33. Elastic connection structure; 31a. Mounting surface; 331. Connecting block; 34. Protruding portion; 332. Connecting rod; 321. Snap-fit ​​body; 322. Pressing portion; 323. Snap-fitting portion; 324. Reinforcement portion. DETAILED DESCRIPTION

[0045] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0048] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0049] A high-voltage box typically includes a housing, an electrical component 101 disposed within the housing, and a busbar structure connected to the output terminal of the electrical component 101. The housing comprises an upper housing and a lower housing that interlock together, forming a structure that accommodates the electrical component 101 and the connection between the output terminal of the electrical component 101 and the busbar structure. In other words, the electrical output terminal of the electrical component 101 and the electrical connection between the busbar structure are also enclosed within the housing.

[0050] At the same time, the electrical connection is also a location where failures occur most frequently. Therefore, when maintenance is required at a later stage, the upper shell and the lower shell need to be disassembled and assembled, which is very difficult.

[0051] In view of this, the present application provides a housing structure for an electrical appliance. On the basis of the lower housing and the upper cover 20 covering each other to form a housing cavity for accommodating the electrical component 101, a protective cover is added. The protective cover covers the lower housing and can protect the electrical connection between the output end of the electrical component 101 and the bus structure. In addition, the protective cover can be detachably connected to the lower housing. Specifically, an elastic connection structure and a clamping structure are provided on the cover. The elastic connection structure provides the deformation space and structural support required when the clamping structure is separated from the clamping part. In this way, when performing separate maintenance on the electrical connection between the electrical output end of the electrical component 101 and the bus structure, it is only necessary to open the protective cover, which is simple and efficient.

[0052] The embodiment of the present application provides a device that uses the above-mentioned housing structure for electrical appliances and can be applied to the housing of a high-voltage box or a battery, and the energy supply device finally formed can be applied to electrical equipment 10000 such as vehicles, mobile phones, portable devices, laptops, ships, spacecraft, power tools, etc. Among them, the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.; the spacecraft includes airplanes, rockets, space shuttles and spacecraft, etc.; the electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc.; the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and iron electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc.

[0053] The energy supply device such as a high-voltage box or battery using the electrical shell structure described in the embodiments of the present application is not limited to being applicable to the electrical equipment 10000 described above, but can also be applied to all equipment or devices using this type of energy supply device. However, for the sake of simplicity, the following embodiments are all explained using electric vehicles as an example.

[0054] For example, see Figure 1 , Figure 1This is a structural diagram of a vehicle according to an embodiment of the present application. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 3000, a controller 1000 and a motor 2000 may be provided inside the vehicle. The controller 1000 is used to control the battery 3000 to supply power to the motor 2000. For example, a battery 3000 may be provided at the bottom, front or rear of the vehicle. The battery 3000 may be used to power the vehicle. For example, the battery 3000 may be used as an operating power source for the vehicle and for the circuit system of the vehicle, for example, for the starting, navigation and operating power requirements of the vehicle. In another embodiment of the present application, the battery 3000 may not only be used as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0055] The battery 3000 mentioned in the embodiment of the present application refers to a single physical module including one or more battery cells 3002 to provide higher voltage and capacity. Figure 2 , the battery 3000 may include a plurality of battery cells 3002. The number of battery cells 3002 and the connection between the battery cells 3002 can be set as needed to meet different power requirements. Specifically, the plurality of battery cells 3002 can be connected in series, in parallel, or in hybrid connection. Hybrid connection refers to a mixture of series and parallel connection so that the battery 3000 has a larger capacity or power. Optionally, a plurality of battery cells 3002 can first be connected in series, in parallel, or in hybrid connection to form a battery module, and a plurality of battery modules can then be connected in series, in parallel, or in hybrid connection to form a battery 3000. In other words, a plurality of battery cells can directly form a battery 3000, or they can first form a battery module, and the battery module can then form a battery 3000.

[0056] Battery cell 3002 includes an electrode assembly and electrolyte. The electrode assembly consists of a positive electrode sheet, a negative electrode sheet, and a separator. Battery cell 3002 primarily operates by the movement of metal ions between the positive and negative electrode sheets. The positive electrode sheet comprises a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. The current collector uncoated with the positive active material layer protrudes from the current collector coated with the positive active material layer. The uncoated current collectors, when stacked, serve as positive electrode tabs. For ease of description, the term "tab" will be used to refer to the positive and / or negative electrode tabs.

[0057] In this application, battery cells 3002 include, but are not limited to, lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells, or magnesium-ion battery cells. Battery cells can be cylindrical, flat, rectangular, or other shapes. Battery cells 3002 are generally categorized into three types based on packaging: cylindrical battery cells, prismatic battery cells, and soft-pack battery cells.

[0058] The battery 3000 further includes a battery box 3001, which has a storage space inside, and multiple battery cells are stored in the storage space. Figure 2 As shown, the battery case 3001 may include two parts, referred to herein as a first part 30011 and a second part 30012. The first part 30011 and the second part 30012 may be connected by snapping, bonding, or the like to form a storage space. Multiple battery cells are connected in parallel, in series, or in a mixed combination and placed in the case formed by connecting the first part 30011 and the second part 30012. The shapes of the first part 30011 and the second part 30012 may be determined based on the shape of the combination of the multiple battery cells.

[0059] The battery case 3001 is used to protect at least one battery cell 3002 , thereby reducing the impact of liquid or other foreign matter outside the battery 3000 on the charging or discharging of the at least one battery cell 3002 .

[0060] The high-voltage box 100 provided in the embodiment of the present application is disposed in the battery 3000 and is used to adjust or control the battery 3000 to output high-voltage electrical energy.

[0061] The high-voltage box 100 comprises a lower housing 10 and an upper cover 20 that together form a housing cavity, and an electrical assembly 101 disposed within the housing cavity. The electrical assembly 101 comprises relays, shunts, resistors, high-voltage copper busbars, and a battery management unit assembly. The relays comprise a pre-charge relay, a negative relay, and a positive relay.

[0062] The output end of the electrical component 101 is led out to the outside through the positive and negative copper busbars for connection to the busbar structure of the battery.

[0063] Please refer to Figures 3 to 5 The electrical appliance housing structure 102 provided in the embodiment of the present application includes a lower housing 10 , an upper cover 20 and a protective cover 30 .

[0064] A snap-fitting portion 11 is provided on the lower shell 10; the upper cover 20 and the lower shell 10 are covered to form a receiving cavity, which is used to receive the electrical component 101; the protective cover 30 includes a cover body 31, a snap-fitting structure 32 and an elastic connecting structure 33 for connecting the cover body 31 and the snap-fitting structure 32, and the snap-fitting structure 32 is snap-fitted to the snap-fitting portion 11 so that the cover body 31 and the lower shell 10 are covered on the output end of the electrical component 101.

[0065] It can be understood that the connection method between the lower shell 10 and the upper cover 20 includes but is not limited to snap connection, threaded connection, welding, etc., and a accommodating groove can be formed only on the lower shell 10, or accommodating grooves can be formed on both the lower shell 10 and the upper cover 20, and the two are covered to form a accommodating cavity.

[0066] The clamping portion 11 may be a convex portion formed on the lower shell 10 , such as a rib or a bump, or may be a concave portion formed on the lower shell 10 , such as an opening, a groove, or a cavity.

[0067] The cover 31 is the primary component of the protective cover 30 and, in conjunction with the lower housing 10, forms a protective space for the output terminals of the electrical component 101. The output terminals of the electrical component 101 typically comprise two outwardly extending busbars. Therefore, the shape and structure of the cover 31 are designed to accommodate both busbars. The shapes and structures of the cover 31 include, but are not limited to, rectangular, elliptical, circular, and other special-shaped covers.

[0068] The snap-fitting structure 32 is a structural component that is snap-fitted and adapted to the snap-fitting portion 11. For example, when the snap-fitting portion 11 is a protrusion formed on the lower shell 10, a snap-fitting hole that is adapted to the protrusion is formed on the snap-fitting structure 32; or, when the snap-fitting portion 11 is an opening formed on the lower shell 10, a buckle that is adapted to the opening is formed on the snap-fitting structure 32.

[0069] The elastic connection structure 33 is a structural component that connects the clamping structure 32 and the cover body 31. The elastic connection structure 33 has a certain elasticity and can undergo appropriate deformation. For example, the elastic connection structure 33 can be a block structure, a rod structure, or a strip structure.

[0070] The connection methods of the elastic connection structure 33 , the clamping structure 32 and the cover body 31 include but are not limited to integral molding, bonding, clamping and welding.

[0071] For example, the cover 31 is a rectangular cover, with an elastic connection structure 33 and a snap-on structure 32 disposed on opposite ends of the rectangular cover. Both the elastic connection structure 33 and the snap-on structure 32 are integrally formed with the rectangular cover. The snap-on portion 11 is a rib formed on the lower cover 31, and the snap-on structure 32 is provided with a snap-on hole that engages with the rib. To disassemble the rectangular cover, the snap-on structure 32 is separated from the snap-on portion 11, allowing the rectangular cover to be separated from the lower housing 10, thereby exposing the output terminal of the electrical component 101 and facilitating subsequent maintenance. After maintenance is complete, the rectangular cover is snap-on-connected to the snap-on portion 11 via the snap-on structure 32, enabling quick installation of the two. The elastic connection structure 33 is used to provide a certain degree of spatial deformation and connection support requirements to enhance the smoothness of the snap-on connection and separation between the snap-on structure 32 and the snap-on portion 11.

[0072] The electrical housing structure 102 provided in the present application is used to form a detachable connection between the lower housing 10 and the protective cover 30 that covers the output end of the electrical component 101. Specifically, the snap-fit ​​structure 32 on the protective cover 30 is snap-fitted to the snap-fit ​​portion 11, and the elastic connection structure 33 provides the deformation space and structural support required when the snap-fit ​​structure 32 is separated from the snap-fit ​​portion 11, so that the cover 31 can be smoothly separated from the lower housing 10, and at the same time, it also meets the needs of rapid assembly. In this way, in the scenario of repairing the output end of the electrical component 101, there is no need to disassemble the upper cover 20 and the lower housing 10, and it is sufficient to disassemble the protective cover 30. The overall volume of the protective cover 30 can be miniaturized to better meet the needs of rapid disassembly and assembly.

[0073] Please refer to Figures 3 to 5 In some embodiments, an elastic connection structure 33 and a snap-fit ​​structure 32 are provided on two opposite ends of the cover body 31 .

[0074] It can be understood that the two opposite ends of the cover body 31 refer to the two ends corresponding to the clamping parts 11 of the lower shell 10 , that is, there are two clamping connection positions between the cover body 31 and the lower shell 10 .

[0075] For example, when the cover 31 is a rectangular cover, the two opposite ends of the rectangular cover are distributed along its length, so as to fully utilize the span of the rectangular cover in its length direction to cover the output end of the electrical component 101.

[0076] Of course, the cover 31 may also be in other shapes and structures, for example, a runway-shaped cover, an elliptical cover, a circular cover, etc.

[0077] In this way, the cover 31 is simultaneously engaged with or separated from the corresponding engaging portions 11 by the engaging structures 32 at both ends to meet the requirements of assembly and disassembly with the lower shell 10 . In this way, the cover 31 can be completely removed from the lower shell 10 .

[0078] In some embodiments, a hinge portion is provided on the lower shell 10, one of the two opposite ends of the cover body 31 is provided with an elastic connection structure 33 and a snap-on structure 32, and the other of the two ends of the cover body 31 is provided with a hinged matching portion adapted to the hinge portion.

[0079] It can be understood that the hinged part and the hinged matching part form an hinged matching connection relationship. The hinged part can be a hinged column, and the hinged matching part can be a hinged hole, and the hole-axis relationship is used to achieve the hinged matching of the two. Alternatively, the hinged part and the hinged matching part are both hinge structures or hinge-like structures, which can also achieve the hinged matching requirements.

[0080] Similarly, the two opposite ends of the cover body 31 refer to the two ends corresponding to the snap-fitting portion 11 of the lower shell 10 and the hinged portion of the lower shell 10, that is, there are two connection positions between the cover body 31 and the lower shell 10.

[0081] For example, when the cover 31 is a rectangular cover, the two opposite ends of the rectangular cover are distributed along its length, so as to fully utilize the length of the rectangular cover to cover the output end of the electrical component 101. Furthermore, a snap-fit ​​structure 32 is provided on one end of the rectangular cover to connect with the snap-fit ​​portion 11 of the lower housing 10, and a hinged fitting is provided on the other end of the rectangular cover to connect with the hinged portion of the lower housing 10.

[0082] In this way, the snap-fit ​​structure 32 on one end of the cover body 31 is snap-fitted with the snap-fit ​​portion 11 on the lower shell 10, and the hinged fitting portion on the other end of the cover body 31 is hingedly fitted with the hinged portion of the lower shell 10, so that the cover body 31 can be quickly disassembled and assembled with the lower shell 10 on one side. At the same time, the hinged fitting method can also enable the cover body 31 to always remain on the lower shell 10 during the disassembly and assembly process. Then, the cover body 31 can be quickly connected during the disassembly and assembly process, which is more efficient.

[0083] Please refer to Figure 5 In some embodiments, the end of the cover body 31 has a mounting surface 31 a, the elastic connection structure 33 is provided on the mounting surface 31 a, and the snap-fit ​​structure 32 is provided on a side of the elastic connection structure 33 away from the mounting surface 31 a.

[0084] It can be understood that the mounting surface 31a of the cover body 31 is the side surface with its end facing outward, and the clip structure 32 and the elastic connection structure 33 are arranged in sequence on the mounting surface 31a, so that a certain gap is formed between the outermost clip structure 32 and the mounting surface 31a, and the gap can just provide the corresponding space requirement for the clip structure 32 to be clipped to the clip part 11.

[0085] Meanwhile, the mounting surface 31 a may be a flat surface, a concave surface, a convex surface, a corrugated surface, etc. formed on the end portion of the cover body 31 .

[0086] In this way, the snap-fit ​​structure 32 is set away from the mounting surface 31a on the basis of the elastic connection structure 33, so that a certain gap is formed between the snap-fit ​​structure 32 and the mounting surface 31a, providing space requirements for the snap-fitting cooperation between the snap-fit ​​structure 32 and the snap-fit ​​part 11, so that the snap-fit ​​structure 32 can be smoothly separated from the snap-fit ​​part 11.

[0087] Please refer to Figure 5 In some embodiments, the elastic connection structure 33 includes a connection block 331 .

[0088] It is understandable that the shape, number and location of the connection blocks 331 on the mounting surface 31 a can be adjusted according to actual usage requirements.

[0089] For example, the connecting block 331 is a square connecting block 331, and there are two square connecting blocks 331. The two square connecting blocks 331 are arranged at intervals in the middle of the mounting surface 31a. Moreover, the arrangement direction of the two square connecting blocks 331 is parallel or approximately parallel to the width direction of the cover body 31. At the same time, the two square connecting blocks 331 are also located in the middle of the snap-fit ​​structure 32. In this way, the snap-fit ​​structure 32 forms a lever-like structure with the square connecting block 331 as a fulcrum to snap-fit ​​the snap-fit ​​part 11.

[0090] For another example, the connecting block 331 is a circular connecting block 331, and there are two circular connecting blocks 331. The two circular connecting blocks 331 are arranged at intervals in the middle of the mounting surface 31a. Moreover, the arrangement direction of the two circular connecting blocks 331 is parallel or approximately parallel to the height direction of the cover body 31. At the same time, the two circular connecting blocks 331 are also located in the middle of the snap-fit ​​structure 32. In this way, the snap-fit ​​structure 32 forms a lever-like structure with the circular connecting block 331 as a fulcrum to snap-fit ​​the snap-fit ​​part 11.

[0091] For another example, the connecting block 331 is an annular connecting block 331, and the number of the annular connecting block 331 is one. The annular connecting block 331 is set in the middle of the mounting surface 31a, and the annular connecting block 331 is also located in the middle of the snap-fit ​​structure 32, so that the snap-fit ​​structure 32 forms a lever-like structure with the annular connecting block 331 as a fulcrum to snap-fit ​​the snap-fit ​​part 11.

[0092] In summary, the connecting block 331 can provide corresponding connection requirements for the clamping structure 32 and meet the requirement of separating the clamping structure 32 from the mounting surface 31 a.

[0093] Please refer to Figure 6 In some embodiments, a mounting surface 31 a is provided at the end of the cover body 31, and protrusions 34 are provided on the mounting surface 31 a. One end of the elastic connection structure 33 is connected to the corresponding protrusion 34 and the other end is connected to the clamping structure 32, and a gap is formed between the clamping structure 32 and the mounting surface 31 a.

[0094] It can be understood that the protrusion 34 is a part that protrudes from or is higher than the mounting surface 31a. Therefore, the protrusions 34 arranged at intervals are combined with the mounting surface 31a to form a mounting concave surface. When the clamping structure 32 is connected to the protrusion 34 through the elastic connection structure 33, a necessary movable gap is formed between the clamping structure 32 and the mounting surface 31a to allow the clamping structure 32 to move in the mounting concave surface when it is clamped with the clamping portion 11.

[0095] In this way, the protrusion 34 is used to form a gap between the snap-fit ​​structure 32 and the mounting surface 31a to meet the deformation space required by the snap-fit ​​structure 32. At the same time, the elastic connection structure 33 is used to connect the protrusion 34 and the snap-fit ​​structure 32 to provide the connection requirements between the snap-fit ​​structure 32 and the cover body 31, as well as the deformation requirements required for it to cooperate with the snap-fit ​​portion 11.

[0096] Please refer to Figure 6 In some embodiments, the elastic connection structure 33 includes a connecting rod 332 .

[0097] It is understandable that the shape, number and location of the connecting rods 332 on the mounting surface 31 a can be adjusted according to actual usage requirements.

[0098] For example, the connecting rod 332 is a rectangular connecting rod 332, and there are two rectangular connecting rods 332. The rectangular connecting rods 332 are symmetrically distributed with the center point of the clamping structure 32 as the center of symmetry. At the same time, the other ends of the two rectangular connecting rods 332 are also located in the middle of the protrusion 34. In this way, the clamping structure 32 forms a lever-like structure with the rectangular connecting rod 332 as the fulcrum to clamp the clamping part 11. In addition, the rectangular connecting rod 332 undergoes torsional deformation around its own axis during the clamping process.

[0099] For another example, the connecting rod 332 is an arc-shaped connecting rod 332. Similarly, there are two arc-shaped connecting rods 332, and the arc-shaped connecting rods 332 are symmetrically distributed with the center point of the clamping structure 32 as the center of symmetry. At the same time, the other ends of the two arc-shaped connecting rods 332 are also located in the middle of the corresponding protrusion 34. In this way, the clamping structure 32 forms a lever-like structure with the arc-shaped connecting rod 332 as the fulcrum to clamp the clamping part 11.

[0100] In summary, the connecting rod 332 can provide the corresponding connection requirements for the clamping structure 32 and the deformation requirements required for the clamping structure 32 to be clamped and matched with the clamping portion 11.

[0101] In some embodiments, a mounting surface 31a is provided at the end of the cover body 31, and protrusions 34 are provided on the mounting surface 31a. The elastic connection structure 33 includes a connecting rod 332 and a connecting block 331. The connecting block 331 is provided on the mounting surface 31a and connected to the clamping structure 32. One end of the connecting rod 332 is connected to the corresponding protrusion 34 and the other end is connected to the clamping structure 32.

[0102] It can be understood that in this embodiment, the elastic connection structure 33 includes two parts: a connecting rod 332 and a connecting block 331, and the connecting block 331 is arranged on the mounting surface 31a and connected to the clamping structure 32, while the connecting rod 332 is arranged on the protrusion 34 and connected to the clamping structure 32.

[0103] In this way, the protrusion 34 is used to form a gap between the clip structure 32 and the mounting surface 31a to meet the deformation space required by the clip structure 32. At the same time, the connecting rod 332 and the connecting block 331 jointly provide the connection requirements between the clip structure 32 and the cover body 31, as well as the deformation requirements required for the clip structure 32 to cooperate with the clip part 11.

[0104] Please refer to Figure 5 and Figure 6 In some embodiments, the clamping structure 32 includes a clamping body 321 and a pressing portion 322 provided on the clamping body 321 . The clamping body 321 is provided with a clamping fitting portion 323 that is adapted to the clamping portion 11 .

[0105] It can be understood that the pressing portion 322 is the main portion of the clamping structure 32 to which an external force is applied, and the clamping body 321 is the body that is clamped and connected to the clamping portion 11 .

[0106] When an external force is applied to the pressing portion 322 , the clamping body 321 is driven to move relative to the end of the cover 31 , so as to clamp or separate the clamping portion 11 .

[0107] Here, the snap-fit ​​portion 323 is the portion that completes the snap-fit ​​connection with the snap-fit ​​portion 11. Depending on the structure of the snap-fit ​​portion 11, the snap-fit ​​portion 323 can be adapted thereto. For example, if the snap-fit ​​portion 11 is a protrusion formed on the lower housing 10, the snap-fit ​​portion 323 can be a snap-fit ​​hole formed on the snap-fit ​​structure 32. Alternatively, if the snap-fit ​​portion 11 is an opening formed on the lower housing 10, the snap-fit ​​portion 323 can be a buckle formed on the snap-fit ​​structure 32.

[0108] In this way, after pressing the pressing portion 322 , the clamping body 321 is driven away from the mounting surface 31 a of the cover 31 , so that the clamping body 321 is separated from the clamping fitting portion 323 , and finally, the cover 31 is separated from the lower housing 10 .

[0109] Specifically, refer to Figure 5 and Figure 6 In some embodiments, the snap-fitting portion 323 includes a snap-fitting hole formed on the snap-fitting body 321 , and the snap-fitting structure 32 further includes a reinforcing portion 324 provided on the snap-fitting body 321 .

[0110] It can be understood that the reinforcement portion 324 is a rib-like structure, a strip structure or a block structure provided on the clamping body 321, and is used to increase the structural strength of the clamping body 321 having the clamping hole.

[0111] For example, as shown in the figure, the snap-fitting hole is formed in the middle of the snap-fitting body 321, and the number of the reinforcing parts 324 is two. Moreover, they are symmetrically arranged on the snap-fitting body 321 and distributed on opposite sides of the snap-fitting hole. The extension direction of the reinforcing parts 324 is the same as the extension direction of the hole shape of the snap-fitting hole.

[0112] In this way, the clamping portion 11 is clamped in the clamping hole to achieve a clamping connection between the cover 31 and the lower shell 10 . At the same time, the reinforcing portion 324 is used to improve the structural strength of the clamping body 321 itself.

[0113] Please refer to Figures 3 to 6 In a specific embodiment, the housing structure 102 for an electrical appliance provided in the embodiment of the present application includes a lower housing 10 , an upper cover 20 and a protective cover 30 .

[0114] A snap-fitting portion 11 is provided on the lower shell 10; the upper cover 20 and the lower shell 10 are covered to form a receiving cavity, which is used to receive the electrical component 101; the protective cover 30 includes a cover body 31, a snap-fitting structure 32 and an elastic connecting structure 33 for connecting the cover body 31 and the snap-fitting structure 32, and the snap-fitting structure 32 is snap-fitted to the snap-fitting portion 11 so that the cover body 31 and the lower shell 10 are covered on the output end of the electrical component 101.

[0115] An elastic connection structure 33 and a clamping structure 32 are provided on two opposite ends of the cover body 31 .

[0116] The cover 31 has a mounting surface 31 a at its end. The elastic connection structure 33 is disposed on the mounting surface 31 a. The snap-fit ​​structure 32 is disposed on a side of the elastic connection structure 33 that faces away from the mounting surface 31 a. The elastic connection structure 33 includes a connection block 331 .

[0117] Alternatively, the end of the cover 31 is provided with a mounting surface 31a, on which are spaced protrusions 34. One end of the elastic connection structure 33 is connected to the corresponding protrusion 34 and the other end is connected to the clamping structure 32, forming a gap between the clamping structure 32 and the mounting surface 31a. The elastic connection structure 33 includes a connecting rod 332.

[0118] The clamping structure 32 includes a clamping body 321 and a pressing portion 322 provided on the clamping body 321. The clamping body 321 is provided with a clamping engagement portion 323 that is adapted to the clamping portion 11. The clamping engagement portion 323 includes a clamping hole formed in the clamping body 321. The clamping structure 32 also includes a reinforcing portion 324 provided on the clamping body 321.

[0119] In a second aspect, the present application further provides a high-voltage box 100 , comprising the above-mentioned housing structure 102 for an electrical appliance.

[0120] In a third aspect, the present application further provides a battery 3000 , comprising the above-mentioned high-voltage box 100 .

[0121] In a fourth aspect, the present application also provides an electrical device 10000 , comprising the above-mentioned battery 3000 .

[0122] It can be understood that the beneficial effects of the second, third and fourth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0123] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A housing structure for an electrical appliance, characterized in that: include: A lower shell, wherein a clamping portion is provided on the lower shell; An upper cover, the upper cover and the lower shell body are covered to form a receiving cavity, and the receiving cavity is used to receive the electrical components; The protective cover comprises a cover body, a snap-fit ​​structure and an elastic connection structure for connecting the cover body and the snap-fit ​​structure, wherein the snap-fit ​​structure is snap-fitted to the snap-fit ​​portion so that the cover body and the lower shell cover the output end of the electrical component.

2. The housing structure for an electrical appliance according to claim 1, characterized in that: The elastic connection structure and the clamping structure are provided on two oppositely disposed ends of the cover body.

3. The housing structure for an electrical appliance according to claim 1, characterized in that: The lower shell is provided with a hinged portion, one of the two opposite ends of the cover body is provided with the elastic connection structure and the clamping structure, and the other of the two opposite ends of the cover body is provided with a hinged matching portion adapted to the hinged portion.

4. The housing structure for an electrical appliance according to any one of claims 1 to 3, characterized in that: The end of the cover body has a mounting surface, the elastic connection structure is arranged on the mounting surface, and the clamping structure is arranged on a side of the elastic connection structure away from the mounting surface.

5. The housing structure for an electrical appliance according to claim 4, characterized in that: The elastic connection structure includes a connection block.

6. The housing structure for an electrical appliance according to any one of claims 1 to 3, characterized in that: The end of the cover body is provided with a mounting surface, and the mounting surface is provided with protrusions arranged at intervals. One end of the elastic connection structure is connected to the corresponding protrusion and the other end is connected to the clamping structure, and a gap is formed between the clamping structure and the mounting surface.

7. The housing structure for an electrical appliance according to claim 6, characterized in that: The elastic connection structure includes a connecting rod.

8. The housing structure for an electrical appliance according to any one of claims 1 to 3, characterized in that: The end of the cover body is provided with a mounting surface, and the mounting surface is provided with protrusions arranged at intervals. The elastic connection structure includes a connecting rod and a connecting block. The connecting block is arranged on the mounting surface and connected to the clamping structure. One end of the connecting rod is connected to the corresponding protrusion and the other end is connected to the clamping structure.

9. The housing structure for an electrical appliance according to any one of claims 1 to 3, characterized in that: The clamping structure comprises a clamping body and a pressing portion arranged on the clamping body, and the clamping body is provided with a clamping matching portion matched with the clamping portion.

10. The housing structure for an electrical appliance according to claim 9, characterized in that: The clamping fitting portion includes a clamping hole formed on the clamping body, and the clamping structure also includes a reinforcing portion provided on the clamping body.

11. A high voltage box, characterized in that: It comprises the housing structure for an electrical appliance as claimed in any one of claims 1 to 10.

12. A battery, characterized in that: Comprising the high voltage box as claimed in claim 11.

13. An electrical equipment, characterized in that: Comprising the battery of claim 12.

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