High-voltage box and electric automobile

Abstract

The utility model relates to the technical field of power distribution equipment of new energy electric automobiles, and discloses a high-voltage box and an electric automobile, the high-voltage box comprises a box body and a box cover, the box body is provided with a bottom wall and at least three side walls, at least the top side of the box body forms an opening structure to form an opening, and the outer side of the side wall of the box body is provided with a connector connected with an external electric device; the box cover comprises a cover plate of a plate-shaped structure, the cover plate is connected with the box body and used for covering the opening, a high-voltage box installation structure is arranged on the surface of the side, away from the interior of the box body, of the cover plate and comprises at least two reinforcing ribs, and the surface, away from the cover plate, of each reinforcing rib forms an installation face used for being installed on a vehicle framework. A plurality of mounting holes distributed at intervals are formed in the mounting surface. The high-voltage box installation structure of the high-voltage box is arranged on the outer side surface of the box cover, the damage risk of the wire harness can be effectively reduced, the overall structure is compact, the space occupied by installation can be effectively reduced, and the utilization rate of the space in a vehicle can be improved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution equipment technology for new energy electric vehicles, and in particular to a high-voltage box and an electric vehicle. Background Technology

[0002] The high-voltage distribution box, also known as the high-voltage box, is the high-voltage power distribution unit of a new energy vehicle. High-voltage power is distributed to the high-voltage electrical products of the system through the high-voltage box. Therefore, the high-voltage box is a core component of the power system of a new energy vehicle. The high-voltage box needs to be connected to other components through wiring harnesses, such as the battery pack, vehicle controller, and integrated controller. The high-voltage box plays an important role in the supply and control of power energy. The battery is the power heart of the car. The reasonable design and layout of the battery pack and the high-voltage box is a key aspect of new energy vehicles.

[0003] Currently, most tabletop high-voltage boxes use L-shaped brackets welded to their two opposite sides as the mounting structure. These L-shaped brackets extend outwards from the sides of the high-voltage box, which can easily interfere with the wiring harness routing. Therefore, a certain distance needs to be maintained between the mounting structure and the wiring harness. Additionally, approximately 180mm of space needs to be reserved for the wiring exit direction. Thus, the installation of the high-voltage box requires sufficient space. However, space is limited inside a car, and the L-shaped brackets extending outwards from the outside of the high-voltage box often occupy a large amount of space, which is unfriendly to the interior space design of a car. Furthermore, the bent edges of the L-shaped brackets have long, sharp cut edges, posing a safety hazard to the high and low voltage wiring harnesses connected to the high-voltage box.

[0004] Therefore, how to design the installation structure of the high-voltage box to alleviate the above problems is an urgent research topic. Utility Model Content

[0005] The purpose of this utility model is to provide a high-voltage box and an electric vehicle. The high-voltage box mounting structure is set on the outer surface of the box cover, which can effectively reduce the risk of wire harness damage. Moreover, the overall structure is compact, which can effectively reduce the space occupied by the installation and improve the space utilization rate inside the vehicle.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-voltage box, comprising:

[0008] A box body and a box lid, the box body having a bottom wall and at least three side walls, the box body having at least a top side forming an open structure to form an opening, and connectors for connecting to external electrical devices being provided on the outer side walls of the box body.

[0009] The cover includes a cover plate with a plate-like structure. The cover plate is connected to the box body and is used to cover the opening. A high-voltage box mounting structure is provided on the surface of the cover plate opposite to the interior of the box body. The high-voltage box mounting structure includes at least two reinforcing ribs. Each reinforcing rib forms a mounting surface on the surface opposite to the cover plate for mounting on a vehicle frame. A plurality of spaced mounting holes are provided on the mounting surface.

[0010] In the aforementioned high-voltage box, various electrical components are housed within the box. These components are mounted on the inner wall of the box and on internal mounting brackets. Connectors are located on the outer sidewalls of the box, from which wiring harnesses extend to connect to the external electrical components. Reinforcing ribs on the outer surface of the box cover constitute the high-voltage box mounting structure and are positioned within the outer surface of the cover, not extending beyond it. The outer surface of the reinforcing ribs forms a mounting surface that mates with the vehicle frame and can be fixedly connected to the vehicle frame through mounting holes. Thus, the high-voltage box mounting structure is positioned on the side of the box and does not extend outwards, preventing interference with the wiring harness and reducing the risk of wear or insulation failure. Furthermore, the mounting structure does not interfere with the high-voltage box's output wiring, eliminating the need for clearance space due to interference between the wiring harness and the mounting structure, thereby reducing the installation space required for the high-voltage box. Additionally, the absence of outward-extending mounting connections on the periphery of the high-voltage box makes the entire high-voltage box and its mounting structure more compact, further reducing space requirements and minimizing the overall installation space needed for the high-voltage box.

[0011] Therefore, the high-voltage box mounting structure of the above-mentioned high-voltage box is set on the outer surface of the box cover, which can effectively reduce the risk of wire harness damage and effectively reduce the space occupied by the installation, which is conducive to improving the space utilization rate inside the vehicle.

[0012] Optionally, a first open structure is formed on the top side of the box body, and a second open structure is formed on one side of the periphery of the box body, the first open structure and the second open structure constituting the opening; the cover plate has an "L" shaped plate structure, the "L" shaped plate structure includes a longitudinal plate portion and a transverse plate portion, the longitudinal plate portion cooperates with the first open structure, and the transverse plate portion cooperates with the second open structure; the reinforcing rib is provided on the side of the longitudinal plate portion away from the interior of the box body, and / or, the reinforcing rib is provided on the side of the transverse plate portion away from the interior of the box body.

[0013] Optionally, when the reinforcing rib is provided on the side of the longitudinal plate portion away from the interior of the box body, and the reinforcing rib is provided on the side of the transverse plate portion away from the interior of the box body, the reinforcing rib is divided into: a first reinforcing rib and a second reinforcing rib located on the longitudinal plate portion, and a third reinforcing rib and a fourth reinforcing rib located on the transverse plate portion; the extending direction of the first reinforcing rib intersects the extending direction of the second reinforcing rib, and the first reinforcing rib is connected to the second reinforcing rib, and both the first reinforcing rib and the second reinforcing rib are provided with mounting holes; the extending direction of the third reinforcing rib intersects the extending direction of the fourth reinforcing rib, and the third reinforcing rib is connected to the fourth reinforcing rib, and both the third reinforcing rib and the fourth reinforcing rib are provided with mounting holes.

[0014] Optionally, the longitudinal plate portion has at least two parallel first reinforcing ribs, and the transverse plate portion has at least two parallel third reinforcing ribs, with each third reinforcing rib opposite to one of the first reinforcing ribs, and one end of each first reinforcing rib connected to one end of the corresponding third reinforcing rib; a second reinforcing rib is provided between each pair of adjacent first reinforcing ribs, the second reinforcing rib being parallel to the side of the longitudinal plate portion away from the transverse plate portion, the second reinforcing rib being perpendicular to the first reinforcing rib, and both ends of the second reinforcing rib being connected to adjacent first reinforcing ribs; a fourth reinforcing rib is provided between each pair of adjacent third reinforcing ribs, the fourth reinforcing rib being parallel to the second reinforcing rib, the fourth reinforcing rib being perpendicular to the third reinforcing rib, and both ends of the fourth reinforcing rib being connected to adjacent third reinforcing ribs.

[0015] Optionally, the first reinforcing rib and the third reinforcing rib, which correspond to each other, have an integral structure.

[0016] Optionally, the reinforcing rib is embedded with a nut structure, and the threaded hole of the nut constitutes the mounting hole.

[0017] Optionally, the box body is formed by stamping. In the box body, the edges of the side walls around the opening are all formed with bent edges that bend towards the inside of the box body. The outer surface of the bent edges forms a flange surface for fitting with the cover plate. The flange surface is provided with a plurality of spaced first connecting holes. The side of the cover plate is provided with second connecting holes that correspond one-to-one with the first connecting holes. The cover plate and the flange surface are connected through the first connecting holes and the second connecting holes.

[0018] Optionally, a sealing ring is provided between the flange face and the cover plate.

[0019] Optionally, the outer surface of the sidewall of the housing is formed as a connector mounting surface, the connector is mounted on the connector mounting surface, and the same sidewall of the housing has at least two different cable exit directions, and each of the two different cable exit directions is perpendicular or parallel to each other.

[0020] This technical solution also provides an electric vehicle, including any of the high-voltage boxes provided in the above technical solutions. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a high-voltage box provided in this embodiment;

[0023] Figure 2 This is an exploded view of the structure of a high-voltage box provided in this embodiment;

[0024] Figure 3 This is a schematic diagram of the structure of a high-voltage box provided in this embodiment;

[0025] Figure 4 This is a schematic diagram of the structure of the cover of a high-voltage box provided in this embodiment.

[0026] Icons: 1-Box body; 2-Box cover; 3-Connector; 4-Sealing ring; 11-Bottom wall; 12-Side wall; 13-Bent edge; 21-Cover plate; 22-High voltage box mounting structure; 211-Vertical plate; 212-Horizontal plate; 221-Reinforcing rib; 222-Mounting hole; 2211-First reinforcing rib; 2212-Second reinforcing rib; 2213-Third reinforcing rib; 2214-Fourth reinforcing rib. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0028] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model embodiment provides a high-voltage box, which is a rectangular high-voltage box. For ease of explanation, the high-voltage box is described with its bottom wall placed horizontally. The surface parallel to the bottom wall of the high-voltage box is the horizontal plane, and the direction from the bottom wall of the high-voltage box to the top side of the high-voltage box is vertically upward. Specifically, the high-voltage box includes a box body 1 and a box cover 2. The box body 1 has a bottom wall 11 and at least three side walls 12. The side walls 12 surround the periphery of the bottom wall 11, and each side wall 12 is connected in sequence. The bottom edge of the side wall 12 is connected to the periphery of the bottom wall 11 to form a rectangular box body. The box body 1 has an open structure at least on the top side to form an opening, and a connector 3 for connecting to external electrical components is provided on the outer side of the side wall 12 of the box body 1. The box cover 2 includes a cover plate 21 with a plate-like structure. The cover plate 21 is connected to the box body 1 and is used for covering. The opening and the surface of the cover plate 21 facing away from the interior of the box body 1 are provided with a high-voltage box mounting structure 22. The high-voltage box mounting structure 22 includes at least two reinforcing ribs 221. Each reinforcing rib 221 is located in the surface of the cover plate 21 facing away from the interior of the box body 1. The surface of each reinforcing rib 221 facing away from the cover plate 21 forms a mounting surface for mounting on the vehicle frame. Multiple spaced mounting holes 222 are provided on the mounting surface. The mounting holes 222 on the same reinforcing rib 221 are evenly spaced, which helps to increase the installation stability of the high-voltage box.

[0030] In the aforementioned high-voltage box, various electrical components are installed inside the box body 1. These components are mounted on the inner wall of the box body 1 and on internal mounting brackets. A connector 3 is installed on the outer side wall 12 of the box body 1, from which a wiring harness is led out to connect to the external electrical components. A reinforcing rib 221 on the outer surface of the box cover 2 constitutes the high-voltage box mounting structure 22, and is located within the outer surface of the cover plate 21, not extending beyond the cover plate 21. The outer surface of the reinforcing rib 221 forms a mounting surface, which mates with the vehicle frame inside the vehicle and can be fixedly connected to the vehicle frame through mounting holes 222. In this way, the high-voltage box mounting structure 22 is set on the side of the whole and does not extend to the outer periphery of the box body 1, so it will not affect the wiring harness of the high-voltage box and reduce the risk of the wiring harness being worn or even having insulation failure due to the mounting structure. In addition, the high-voltage box mounting structure 22 will not interfere with the high-voltage box outlet, and there is no need to set up clearance space due to interference between the wiring harness and the high-voltage box mounting structure 22, which helps to reduce the installation space of the high-voltage box. Furthermore, there are no outward mounting connection structures on the periphery of the high-voltage box, making the high-voltage box and its mounting structure more compact as a whole, reducing the space occupied, which helps to reduce the installation space of the high-voltage box.

[0031] Therefore, the high-voltage box mounting structure of the above-mentioned high-voltage box is set on the outer surface of the box cover, which can effectively reduce the risk of wire harness damage and effectively reduce the space occupied by the installation, which is conducive to improving the space utilization rate inside the vehicle.

[0032] In one possible implementation, such as Figure 3 As shown, a first open structure is formed on the top side of the box 1, and a second open structure is formed on one side of the periphery of the box 1. The first and second open structures constitute the opening of the box 1 and are interconnected. The presence of open structures on both the top and periphery of the box 1 increases the opening space of the shell, preventing blind fastening when installing lateral fasteners inside the box 1 and providing ample operating space for assembling parts inside the box 1, thus improving assembly efficiency. For example, the first and second open structures can be interconnected, making it easier to assemble parts inside the box 1. Alternatively, a support rod can be provided at the junction of the first and second open structures, with both ends of the support rod fixed to two opposite side walls 12, effectively enhancing the structural strength of the box 1.

[0033] Correspondingly, in order to match the opening of box 1, combined with Figure 3 ,like Figure 4As shown, the cover plate 21 is configured as an "L"-shaped plate structure, which includes a longitudinal plate portion 211 and a transverse plate portion 212. The longitudinal plate portion 211 mates with the first open structure, and the transverse plate portion 212 mates with the second open structure. A reinforcing rib 221 is provided only on the side of the longitudinal plate portion 211 facing away from the interior of the box body 1. This allows for installation and fixation by mates with the vehicle frame on this side of the longitudinal plate portion 211, enabling the entire high-voltage box assembly to be hoisted. Alternatively, a reinforcing rib 221 is provided only on the side of the transverse plate portion 212 facing away from the interior of the box body 1. A reinforcing rib 221 is provided on the side, and the high-voltage box assembly is installed and fixed by cooperating with the vehicle frame on the side of the transverse plate 212, so that the entire high-voltage box assembly can be side-mounted; or, a reinforcing rib 221 is provided on the side of the longitudinal plate 211 away from the inside of the box body 1, and a reinforcing rib 221 is also provided on the side of the transverse plate 212 away from the inside of the box body 1, so that the entire high-voltage box assembly can be hoisted or side-mounted, or hoisted and side-mounted and fixed at the same time, increasing the installation firmness and flexibility, and increasing the flexibility of the high-voltage box in the overall vehicle layout.

[0034] Combination Figure 1 ,refer to Figure 3 and Figure 4 As shown, based on the above-mentioned high-voltage box configuration, when a reinforcing rib 221 is provided on the side of the longitudinal plate portion 211 facing away from the interior of the box body 1, and a reinforcing rib 221 is also provided on the side of the transverse plate portion 212 facing away from the interior of the box body 1, the arrangement of the reinforcing rib 221 is exemplarily combined with... Figure 3 ,refer to Figure 4 As shown, the reinforcing rib 221 can be divided into: a first reinforcing rib 2211 and a second reinforcing rib 2212 located on the longitudinal plate portion 211, and a third reinforcing rib 2213 and a fourth reinforcing rib 2214 located on the transverse plate portion 212; the extending direction of the first reinforcing rib 2211 intersects the extending direction of the second reinforcing rib 2212, and the first reinforcing rib 2211 is connected to the second reinforcing rib 2212, and both the first reinforcing rib 2211 and the second reinforcing rib 2212 are provided with mounting holes 222; the extending direction of the third reinforcing rib 2213 intersects the extending direction of the fourth reinforcing rib 2214, and the third reinforcing rib 2213 is connected to the fourth reinforcing rib 2214, and both the third reinforcing rib 2213 and the fourth reinforcing rib 2214 are provided with mounting holes 222. The installation stability can be effectively increased by providing a first reinforcing rib 2211 and a second reinforcing rib 2212 with intersecting extension directions on the longitudinal plate portion 211, and a third reinforcing rib 2213 and a fourth reinforcing rib 2214 with intersecting extension directions on the transverse plate portion 212.

[0035] Specifically, such as Figure 4As shown, the longitudinal plate portion 211 has at least two parallel first reinforcing ribs 2211, and the transverse plate portion 212 has at least two parallel third reinforcing ribs 2213, with each third reinforcing rib 2213 corresponding to one of the first reinforcing ribs 2211. The third reinforcing ribs 2213 are also arranged in parallel. One end of each first reinforcing rib 2211 is connected to one end of the corresponding third reinforcing rib 2213. Furthermore, the end of the first reinforcing rib 2211 away from the third reinforcing rib 2213 is flush with the side of the longitudinal plate portion 211 away from the transverse plate portion 212. That is, in the extending direction of the first reinforcing rib 2211, the length of the first reinforcing rib 2211 is the same as the length of the longitudinal plate portion 211. The end of the third reinforcing rib 2213 away from the first reinforcing rib 2211 is flush with the side of the transverse plate portion 212 away from the transverse plate portion 212. The third reinforcing rib 2213 is flush with the side edge of the longitudinal plate and its length is the same as the length of the transverse plate portion 212 in the extending direction of the third reinforcing rib 2213. On the other hand, a second reinforcing rib 2212 is provided between each two adjacent first reinforcing ribs 2211. The second reinforcing rib 2212 is parallel to the side edge of the longitudinal plate portion 211 away from the transverse plate portion 212 and is perpendicular to the first reinforcing ribs 2211. The two ends of the second reinforcing rib 2212 are respectively connected to the adjacent first reinforcing ribs 2211. A fourth reinforcing rib 2214 is provided between each two adjacent third reinforcing ribs 2213. The fourth reinforcing rib 2214 is parallel to the second reinforcing ribs 2212 and is perpendicular to the third reinforcing ribs 2213. The two ends of the fourth reinforcing rib 2214 are respectively connected to the adjacent third reinforcing ribs 2213.

[0036] As a preferred implementation method, such as Figure 4 As shown, the first reinforcing rib 2211 and the third reinforcing rib 2213, which correspond to each other, are integrated into a single structure, which can effectively enhance the structural strength of the cover plate 21.

[0037] For the installation hole settings, please refer to... Figure 4 As shown, in one possible implementation, a nut structure is embedded within the reinforcing rib 221. The nut can be welded and fixed within the reinforcing rib 221, and the threaded hole of the nut constitutes a mounting hole. During high-voltage box installation, it can be directly fixed by bolts passing through the vehicle frame and threadedly connecting to the mounting hole, resulting in a simple and reliable connection.

[0038] Regarding the design of the opening at the box, one possible implementation method is to combine... Figure 2 ,like Figure 3As shown, the housing 1 is formed by stamping, which improves the flatness of the outer surface of the side wall 12 of the housing 1 and reduces the risk of air leakage at the connector mounting surface. The reinforcing ribs 221 on the cover plate 21 are also formed by stamping. In the housing 1, the edges of the side walls 12 around the opening are all formed with bent edges 13 that bend towards the inside of the housing 1. The fold line between the bent edge 13 and the side wall 12 is smoothly transitioned and will not damage the wire harness. The outer surface of the bent edge 13 forms a flange surface for mating with the cover plate 21. The flange surface has multiple spaced sections. The cover plate 21 has a first connecting hole and a second connecting hole on its side, which corresponds to the first connecting hole. The cover plate 21 is connected to the flange face through the first connecting hole and the second connecting hole. The first connecting hole is provided with a mounting stud with an internal thread hole, which is coaxial with the first connecting hole. The cover plate 21 mates with the flange face. The bolt passes through the second connecting hole and engages with the internal thread hole of the mounting stud at the first connecting hole to achieve a fixed connection. The connection is simple and reliable, and the operation is convenient, which helps to improve the assembly efficiency of the high-voltage box.

[0039] Among them, combined Figure 1 ,like Figure 2 As shown, to enhance the tightness between the box body 1 and the lid 2, a sealing ring 4 is provided between the flange face and the cover plate. For example, the sealing ring can be a rubber ring.

[0040] In the aforementioned high-voltage box, reference Figure 2 and Figure 3 As shown, the outer surface of the sidewall 12 surrounding the housing 1 forms a connector mounting surface. Connectors 3 are mounted on this mounting surface, and at least two different cable exit directions are provided on the same sidewall 12 of the housing 1, with each pair of different cable exit directions being perpendicular or parallel to each other. For example, connectors 3 can be provided on the outer sides of all three sidewalls 12 of the housing 1, and three different cable exit directions can be provided on the same sidewall 12. For instance, there can be a downward-exiting connector 3, an upward-exiting connector 3, and a horizontally exiting connector 3, wherein the cable exit direction of the horizontally exiting connector 3 faces away from the second open structure. Preferably, the connector can be a high-voltage connector, which is simple to connect, easy to operate, and can improve the efficiency of wire harness connection.

[0041] Based on the same design concept, this embodiment also provides an electric vehicle, including any of the high-voltage boxes provided in the above embodiments.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-voltage box, characterized in that, include: Box body (1) and box cover (2), the box body (1) having a bottom wall (11) and at least three side walls (12), the box body (1) having at least a top side forming an open structure to form an opening, and a connector (3) for connecting to external electrical devices is provided on the outside of the side walls (12) of the box body (1); The cover (2) includes a cover plate (21) with a plate-like structure. The cover plate (21) is connected to the box body (1) and is used to cover the opening. A high-voltage box mounting structure (22) is provided on the surface of the cover plate (21) facing away from the interior of the box body (1). The high-voltage box mounting structure (22) includes at least two reinforcing ribs (221). The surface of each reinforcing rib (221) facing away from the cover plate (21) forms a mounting surface for mounting on a vehicle frame. A plurality of spaced mounting holes (222) are provided on the mounting surface.

2. The high-voltage box according to claim 1, characterized in that, The top side of the box (1) forms a first open structure, and one side of the periphery of the box (1) forms a second open structure. The first open structure and the second open structure constitute the opening. The cover plate (21) has an "L" shaped plate structure, which includes a longitudinal plate (211) and a transverse plate (212). The longitudinal plate (211) cooperates with the first open structure, and the transverse plate (212) cooperates with the second open structure. The reinforcing rib (221) is provided on the side of the longitudinal plate (211) away from the interior of the box (1), and / or the reinforcing rib (221) is provided on the side of the transverse plate (212) away from the interior of the box (1).

3. The high-voltage box according to claim 2, characterized in that, When the reinforcing rib (221) is provided on the side of the longitudinal plate portion (211) away from the interior of the box body (1), and the reinforcing rib (221) is provided on the side of the transverse plate portion (212) away from the interior of the box body (1), the reinforcing rib (221) is divided into: a first reinforcing rib (2211) and a second reinforcing rib (2212) located on the longitudinal plate portion (211), and a third reinforcing rib (2213) and a fourth reinforcing rib (2214) located on the transverse plate portion (212); the extending direction of the first reinforcing rib (2211) is the same as that of the second reinforcing rib (2212). The extension directions of the first reinforcing rib (2211) and the second reinforcing rib (2212) intersect, and the first reinforcing rib (2211) and the second reinforcing rib (2212) are connected. The first reinforcing rib (2211) and the second reinforcing rib (2212) are both provided with the mounting hole (222); the extension direction of the third reinforcing rib (2213) intersects with the extension direction of the fourth reinforcing rib (2214), and the third reinforcing rib (2213) and the fourth reinforcing rib (2214) are connected. The third reinforcing rib (2213) and the fourth reinforcing rib (2214) are both provided with the mounting hole (222).

4. The high-voltage box according to claim 3, characterized in that, The longitudinal plate portion (211) has at least two parallel first reinforcing ribs (2211), and the transverse plate portion (212) has at least two parallel third reinforcing ribs (2213), with each third reinforcing rib (2213) corresponding to one of the first reinforcing ribs (2211). One end of each first reinforcing rib (2211) is connected to one end of the corresponding third reinforcing rib (2213). A second reinforcing rib (2212) is provided between each pair of adjacent first reinforcing ribs (2211), and the second reinforcing rib (2212) is located away from the longitudinal plate portion (211) and the transverse plate portion (2212). 12) The sides are parallel, the second reinforcing rib (2212) is perpendicular to the first reinforcing rib (2211), and the two ends of the second reinforcing rib (2212) are respectively connected to the adjacent first reinforcing rib (2211); a fourth reinforcing rib (2214) is provided between each two adjacent third reinforcing ribs (2213), the fourth reinforcing rib (2214) is parallel to the second reinforcing rib (2212), the fourth reinforcing rib (2214) is perpendicular to the third reinforcing rib (2213), and the two ends of the fourth reinforcing rib (2214) are respectively connected to the adjacent third reinforcing rib (2213).

5. The high-voltage box according to claim 4, characterized in that, The first reinforcing rib (2211) and the third reinforcing rib (2213) that correspond to each other have an integral structure.

6. The high-voltage box according to claim 1, characterized in that, The reinforcing rib (221) structure is embedded with a nut structure, and the threaded hole of the nut constitutes the mounting hole (222).

7. The high-voltage box according to any one of claims 1-6, characterized in that, The box body (1) is formed by stamping. In the box body (1), the edges of the side walls (12) around the opening are all formed with bent edges (13) that bend towards the inside of the box body (1). The outer surface of the bent edges (13) forms a flange surface for fitting with the cover plate (21). The flange surface is provided with a plurality of spaced first connecting holes. The side of the cover plate (21) is provided with second connecting holes that correspond one-to-one with the first connecting holes. The cover plate (21) and the flange surface are connected through the first connecting holes and the second connecting holes.

8. The high-voltage box according to claim 7, characterized in that, A sealing ring (4) is provided between the flange face and the cover plate (21).

9. The high-voltage box according to claim 1, characterized in that, The outer surface of the side wall (12) around the box (1) forms a connector mounting surface, the connector (3) is mounted on the connector mounting surface, and the same side wall (12) of the box (1) has at least two different wire output directions of the connector (3), and each of the two different wire output directions is perpendicular or parallel to each other.

10. An electric vehicle, characterized in that, Includes the high-voltage box as described in any one of claims 1-9.

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