An electrical box and power conversion device

Abstract

The application discloses an electrical box and a power conversion device, and belongs to the technical field of power batteries. The electrical box comprises a box body, the box body comprises a first side plate, a first terminal and a second terminal are mounted on the first side plate, and the first terminal and the second terminal are arranged in at least one of a first direction, a second direction or a third direction. The size of the combination of the first terminal and the second terminal in the first direction can be reduced, and the thickness of the electrical box in the first direction is reduced.

Description

Technical Field

[0001] This application belongs to the field of power battery technology, specifically relating to an electrical box and a power conversion device. Background Technology

[0002] Electrical boxes connect to other devices or components via terminals located on their outer surface. Typically, two or more terminals are located on the outer surface of the electrical box. Current electrical box designs aim to facilitate wiring while minimizing interference between lines. However, existing electrical boxes suffer from bulky sizes due to inefficient terminal layouts. Utility Model Content

[0003] This application provides an electrical box designed to optimize the layout of the wiring terminals and thus reduce the size of the electrical box; another objective of this application is to provide a power conversion device.

[0004] An embodiment of this application provides an electrical box, including:

[0005] The housing includes a first side plate, on which a first terminal and a second terminal are mounted;

[0006] The first terminal and the second terminal are offset in at least one of the first direction, the second direction, or the third direction.

[0007] In some embodiments, the dimension of the first side plate in the first direction is a first width W1;

[0008] A first terminal is mounted on the first side plate. The first terminal has two first side walls that are arranged opposite each other along the first direction. The distance between the two first side walls in the first direction is a second width W2.

[0009] The second terminal is mounted on the first side plate. The second terminal has two second side walls that are arranged opposite to each other along the first direction. The distance between the two second side walls in the first direction is a third width W3.

[0010] Wherein, the sum of the second width W2 and the third width W3 is greater than the first width W1, and both the second width W2 and the third width W3 are less than the first width W1.

[0011] In some embodiments, the contact area between the first terminal and the first side plate has a height difference relative to the contact area between the second terminal and the first side plate in a second direction or a third direction, and the first direction, the second direction, and the third direction intersect each other.

[0012] In some embodiments, the first side plate has a first mounting groove, and the contact area between the second terminal and the first side plate is located within the first mounting groove.

[0013] In some embodiments, the first side plate is recessed into the inner cavity of the electrical box along the third direction to form the first mounting groove, and the second terminal is mounted on any one of the groove walls of the first mounting groove.

[0014] The first side plate includes a side plate body, and the opening of the first mounting groove penetrates the side plate body.

[0015] In some embodiments, the width of the first mounting groove in the first direction is less than the first width W1;

[0016] The first mounting groove includes a first groove bottom wall, a first groove side wall, and a second groove side wall. The first groove bottom wall and the side plate body have a height difference in the third direction. The first groove side wall and the second groove side wall are connected to each other. The first groove side wall and the second groove side wall are disposed between the first groove bottom wall and the side plate body, and connect the first groove bottom wall and the side plate body.

[0017] In some embodiments, the first mounting groove further includes a third groove sidewall, which is disposed on the side of the first groove sidewall away from the second groove sidewall, and is disposed between the first groove bottom wall and the side plate body, and connects the first groove bottom wall and the side plate body.

[0018] In some embodiments, the width of the first mounting groove in the first direction is equal to the first width W1;

[0019] The first mounting groove includes a first groove bottom wall and a first groove side wall. There is a height difference between the first groove bottom wall and the side plate body along the third direction. The first groove side wall is disposed between the first groove bottom wall and the side plate body and connects the first groove bottom wall and the side plate body.

[0020] In some embodiments, the first groove sidewall is inclined to the third direction; the second terminal is mounted on the first groove sidewall or the first groove bottom wall.

[0021] In some embodiments, both the first groove sidewall and the first groove bottomwall are inclined to the third direction; the second terminal is mounted on the first groove sidewall or the first groove bottomwall.

[0022] In some embodiments, the included angle between the first tank sidewall and the first tank bottomwall is A, satisfying 105°<A≤120°.

[0023] In some embodiments, the wall of the first mounting groove includes a first groove bottom wall, a first groove side wall, and a fourth groove side wall. The first groove bottom wall and the side plate body have a height difference along the third direction. The first groove side wall and the fourth groove side wall are disposed opposite to each other on both sides of the first groove bottom wall along the second direction. The first groove side wall is located between the first groove bottom wall and the side plate body and connects the first groove bottom wall and the side plate body. The fourth groove side wall is located between the first groove bottom wall and the side plate body and connects the first groove bottom wall and the side plate body.

[0024] In some embodiments, the first mounting groove includes a first groove bottom wall and a first groove side wall, the first groove bottom wall being inclined to the third direction, and the first groove side wall being disposed between the first groove bottom wall and the side plate body, and connecting the first groove bottom wall and the side plate body.

[0025] In some embodiments, the first side plate includes a side plate body and an inclined portion connected together, the inclined portion being inclined to the third direction;

[0026] The first terminal is mounted on the side plate body, and the second terminal is mounted on the inclined portion.

[0027] In some embodiments, the first side plate has a protrusion that protrudes in a direction away from the electrical box along the third direction, and the contact area between the first terminal and the first side plate is located on the protrusion.

[0028] In some embodiments, the housing includes a fifth side plate connected to the first side plate, the fifth side plate being disposed on one side of the first side plate in the second direction;

[0029] The box body has a second mounting groove, the second mounting groove has a slot on the fifth side plate, the groove wall of the second mounting groove includes a second groove bottom wall and a fifth groove side wall, and the second groove bottom wall is connected to the fifth side plate;

[0030] The first side plate includes a side plate body, the side plate body and the second groove bottom wall have a height difference in the third direction, and the fifth groove side wall is disposed between the second groove bottom wall and the side plate body, and connects the second groove bottom wall and the side plate body;

[0031] In the third direction, the orthographic projection of the side plate body and the orthographic projection of the bottom wall of the second groove partially overlap, and the first terminal is installed on the side of the side plate body facing away from the bottom wall of the second groove.

[0032] In some embodiments, in a second direction intersecting the first direction, the orthographic projection of the first terminal overlaps with the orthographic projection of the second terminal.

[0033] In some embodiments, the first terminal and the second terminal are an integral structure, and the integral structure is attached to the first side plate.

[0034] In some embodiments, the first terminal further has a third sidewall and a first lead, the third sidewall being disposed between two first sidewalls, one end of the first lead being connected to the first sidewall or the third sidewall, and the other end extending in a direction that avoids the second terminal;

[0035] The second terminal also has a fourth sidewall and a second lead. The fourth sidewall is disposed between the two second sidewalls. One end of the second lead is connected to the second sidewall or the fourth sidewall, and the other end extends in a direction that avoids the first terminal.

[0036] This application also discloses a power conversion device, including an electrical box as described in the above embodiments and an electrical device connected to a first terminal of the electrical box.

[0037] This application has the following beneficial effects:

[0038] An electrical box according to an embodiment of this application includes a box body, a first terminal, and a second terminal. The box body is provided with a first side plate. The staggered arrangement of the terminals can reduce the combined size of the first terminal and the second terminal in the first direction, thereby reducing the thickness of the box body in the first direction.

[0039] In addition, the first side plate has a first width in the first direction; the first terminal is mounted on the first side plate and has two side walls with a second width between them, which are set opposite to each other in the first direction; the second terminal is also mounted on the first side plate and has two side walls with a third width between them, which are set opposite to each other in the first direction; the sum of the second width and the third width is greater than the first width, and both the second width and the third width are less than the first width; this application sets the first width to be less than the sum of the second width and the third width, indicating that the size of the electrical box in the first direction is reduced, thereby reducing the volume of the electrical box; in addition, the arrangement of the first terminal and the second terminal is improved so that while the size of the electrical box in the first direction is reduced, the wiring layout of the electrical box meets the requirements of both facilitating wiring and avoiding interference between lines.

[0040] The power conversion device of this application includes the electrical box as described in the above embodiments. Therefore, it can have all the technical features and effects of the above-described electrical box, which will not be repeated here. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This application provides a schematic diagram of an electrical box with terminals installed, as an embodiment of the present application.

[0043] Figure 2 This is a schematic diagram of an electrical box without terminals installed, provided as an embodiment of this application.

[0044] Figure 3 This is a schematic diagram of another electrical box with terminals installed, provided in an embodiment of this application.

[0045] Figure 4 This is a schematic diagram of another electrical box structure without terminals installed, provided in an embodiment of this application.

[0046] Figure 5 This is a schematic diagram of another electrical box without installed terminals, provided in an embodiment of this application;

[0047] Figure 6 A schematic diagram of a structure in which the first mounting groove provided in an embodiment of this application has an inclined surface;

[0048] Figure 7 Another structural schematic diagram of the first mounting groove with an inclined surface provided in the embodiments of this application;

[0049] Figure 8 A schematic diagram of angle A provided for an embodiment of this application;

[0050] Figure 9 This is a schematic diagram of a first mounting groove structure provided in an embodiment of this application;

[0051] Figure 10 This is a schematic diagram of another first mounting slot structure provided in an embodiment of this application;

[0052] Figure 11 This is a schematic diagram of another first mounting slot containing multiple terminals provided in an embodiment of this application;

[0053] Figure 12 A schematic diagram of the inclined portion provided in an embodiment of this application;

[0054] Figure 13 This is a schematic diagram of the structure of the protrusion provided in an embodiment of this application;

[0055] Figure 14This is a schematic diagram of the structure of the second mounting slot provided in an embodiment of this application;

[0056] Figure 15 This is a schematic diagram of one installation position of the second terminal in the second mounting slot provided in an embodiment of this application;

[0057] Figure 16 This is a schematic diagram illustrating another installation position of the second terminal in the second mounting slot provided in an embodiment of this application;

[0058] Figure 17 This is a schematic diagram of one wiring method for the terminal leads provided in an embodiment of this application;

[0059] Figure 18 A schematic diagram illustrating another wiring method for the terminal leads provided in an embodiment of this application;

[0060] Figure 19 A schematic diagram showing the second terminal installed on the bottom wall of the first groove, as provided in an embodiment of this application;

[0061] Figure 20 This is a schematic diagram showing that the second terminal is not fully contained in the first mounting slot according to an embodiment of this application;

[0062] Figure 21 A schematic diagram showing the second terminal fully accommodated in the first mounting slot according to an embodiment of this application;

[0063] Figure 22 This is a schematic diagram of one mounting position of the second terminal in the first mounting slot provided in an embodiment of this application;

[0064] Figure 23 This is a schematic diagram illustrating another installation position of the second terminal in the first mounting slot provided in an embodiment of this application;

[0065] Figure 24 This is a schematic diagram showing the installation position of the first connecting part in an embodiment of this application;

[0066] Figure 25 This is a schematic diagram showing the installation position of the second connecting part in an embodiment of this application;

[0067] Figure 26 A schematic diagram showing the installation positions of the third and fourth connecting parts provided in an embodiment of this application;

[0068] Figure 27 This is a schematic diagram of a box without a first mounting slot, provided in an embodiment of this application.

[0069] Explanation of reference numerals in the attached figures:

[0070] X - First direction; Y - Second direction; Z - Third direction;

[0071] 100 - Box body; 110 - First side plate; 111 - Side plate body; 112 - First mounting groove; 1121 - First groove side wall; 1122 - Second groove side wall; 1123 - Third groove side wall; 1124 - Fourth groove side wall; 1125 - First groove bottom wall; 1127 - First connecting part; 1128 - Third connecting part; 1129 - Fourth connecting part; 113 - Second connecting part; 114 - Inclined part; 115 - Protrusion; 120 - Second side plate; 130 - Third side plate; 140 - Fourth side plate; 150 - Fifth side plate; 160 - Sixth side plate;

[0072] 200 - First terminal; 210 - First sidewall; 220 - Third sidewall; 230 - First lead;

[0073] 300 - Second terminal; 310 - Second sidewall; 320 - Fourth sidewall; 330 - Second lead. Detailed Implementation

[0074] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0075] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. In the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0076] In the accompanying drawings of this application's embodiments, arrows labeled X represent the first direction X, arrows labeled Y represent the second direction Y, and arrows labeled Z represent the third direction Z. The description of this application introduces the first direction X, the second direction Y, and the third direction Z to more clearly illustrate the structure and relative positional relationships of the electrical box. In practical applications, the first direction X, the second direction Y, and the third direction Z can point to any direction in space. For ease of understanding, this application uses the first direction X as the width direction of the electrical box, the second direction Y as the height direction of the electrical box, and the third direction Z as the depth direction of the electrical box as an example for explanation. In practical applications, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0077] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of exemplary embodiments and may not be to scale. The modules or processes shown in the drawings are not necessarily essential for implementing this application and therefore should not be used to limit the scope of protection of this application.

[0078] As a preamble to the embodiments of this application, current electrical box designs require a wiring layout that facilitates wiring while avoiding interference between lines. When two terminal blocks are required, they are arranged parallel to each other on one side wall of the electrical box. This means the width of the electrical box must be larger than the dimensions of the two terminal blocks, resulting in a larger overall size. When three or four terminal blocks are required, to facilitate wiring and avoid mutual interference, the terminal blocks must be installed sequentially along the width of the electrical box, further increasing its width and overall size. This design causes the electrical box to occupy more space, creating difficulties for the installation and wiring of other equipment.

[0079] In view of this, embodiments of this application provide an electrical box aimed at solving at least some of the above-mentioned technical problems.

[0080] Please see Figure 1 This application provides an electrical box, which includes a box body 100, a first terminal 200, and a second terminal 300. For example... Figure 10 As shown, the first terminal 200 and the second terminal 300 can be staggered in the first direction X; as Figure 17 , 18 As shown, they are staggered along the second direction Y; as Figure 14 , Figure 15 The arrangement is staggered along the Z-direction as shown.

[0081] like Figure 1 As shown, the first terminal 200 and the second terminal 300 can also be staggered in both the third direction Z and the second direction Y; for example Figure 11The first terminal 200 and the second terminal 300 shown can be alternately arranged in the first direction X and the second direction Y; similarly, as Figure 10 As shown, the first terminal 200 and the second terminal 300 can be alternately arranged in the first direction X and the third direction Z.

[0082] like Figure 3 The first terminal 200 and the second terminal 300 shown can be staggered in the first direction X, the second direction Y and the third direction Z, with the first terminal 200 set in the upper right and the second terminal 300 set in the lower left.

[0083] In another embodiment, the housing 100 includes a first side plate 110, the first side plate 110 having a first width W1 in a first direction X. A first terminal 200 is mounted on the first side plate 110, the first terminal 200 having two first sidewalls 210 disposed opposite each other in the first direction X, the distance between the two first sidewalls 210 in the first direction X being a second width W2. A second terminal 300 is mounted on the first side plate 110, the second terminal 300 having two second sidewalls 310 disposed opposite each other in the first direction X, the distance between the two second sidewalls 310 in the first direction X being a third width W3. The sum of the second width W2 and the third width W3 is greater than the first width W1, and both the second width W2 and the third width W3 are less than the first width W1. Specifically, as shown... Figure 1 As shown, the two first sidewalls 210 refer to the two sidewalls of the first terminal 200 that are disposed opposite to each other in the first direction X. The two second sidewalls 310 refer to the two sidewalls of the second terminal 300 that are disposed opposite to each other in the first direction X.

[0084] It should be noted that, as Figure 1As shown, the housing 100 is made of galvanized steel sheet, which has high strength and corrosion resistance. The housing 100 consists of multiple side panels that together form a housing cavity for mounting and protecting internal electrical components. The first side panel 110 is located on the front of the housing 100 and can be used to mount a display panel, control buttons, or interfaces. The second side panel 120 is located on the rear of the housing 100, and is positioned opposite the first side panel 110 in the third direction Z. The second side panel 120 may include mounting holes or brackets for securing the housing 100. The third side panel 130 and the fourth side panel 140 are located on the left and right sides of the housing 100, and are positioned opposite each other in the first direction X. They are typically used to provide structural support and may include ventilation holes or heat sinks to aid in heat dissipation. The sixth side panel 160 is located on the top of the housing 100 and may be designed with openings or covers for easy maintenance and wiring. The fifth side plate 150 is located on the bottom side of the housing 100. The sixth side plate 160 is positioned opposite the fifth side plate 150 along the second direction Y, typically used to support the entire structure, and may include openings for cable entry and exit. The internal space enclosed by these side plates is a receiving cavity for accommodating electrical components, which form a circuit within the cavity. One end of the first terminal 200 is connected to the circuit within the receiving cavity and, through this circuit, to one end of the second terminal 300. The other end of the first terminal 200 is connected to other external electrical equipment or circuits via a wiring harness, and the other end of the second terminal 300 is connected to an energy storage device via a wiring harness. The side plates can be connected by screws, clips, or welding to ensure the stability and sealing of the housing 100. Furthermore, the housing 100 may also be designed with a fixing structure for mounting on a wall or other equipment. The aforementioned front, rear, left, right, top, and bottom sides are all... Figure 1 Taking the central direction as an example, this is only used to illustrate the positional relationship between the side panels; the specific placement is not limited.

[0085] In view of this, in this embodiment, the first width W1 of the electrical box in the first direction X is set to be less than the sum of the second width W2 and the third width W3, indicating that the size of the electrical box in the first direction X is reduced, thereby reducing the volume of the electrical box. In addition, the arrangement of the first terminal 200 and the second terminal 300 is improved, so that while the size of the electrical box in the first direction X is reduced, the wiring layout of the electrical box meets the requirements of both easy wiring and avoiding interference between lines.

[0086] In some embodiments, such as Figures 1 to 23 As shown, the contact area between the first terminal 200 and the first side plate 110 has a height difference relative to the contact area between the second terminal 300 and the first side plate 110 in the second direction Y or the third direction Z.

[0087] It should be noted that the side of the first terminal 200 facing the receiving cavity is attached to the surface of the first side plate 110, forming a contact area between the first terminal 200 and the first side plate 110; similarly, the second terminal 300 is attached to the surface of the first side plate 110 on its side facing the receiving cavity, forming a contact area between the second terminal 300 and the first side plate 110. Here, the contact area between the first terminal 200 and the first side plate 110 refers to the part where the first terminal 200 and the first side plate 110 are stably installed, ensuring mechanical and electrical connections. Similarly, the contact area between the second terminal 300 and the first side plate 110 refers to the part where the second terminal 300 and the first side plate 110 are stably installed, ensuring mechanical and electrical connections.

[0088] It should be noted that the contact area between the first terminal 200 and the first side plate 110 has a height difference relative to the contact area between the second terminal 300 and the first side plate 110 in any one or two, or all three directions: the first direction X, the second direction Y, or the third direction Z. The second direction Y and the third direction Z are two intersecting directions in the spatial dimension of the box, where the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to both the first direction X and the second direction Y. When there is a height difference in the second direction Y, it means that the first terminal 200 and the second terminal 300 are in different vertical positions; if there is a height difference in the third direction Z, it indicates that the first terminal 200 and the second terminal 300 are in different front-to-back positions. By setting such a height difference, the spatial arrangement of the first terminal 200 and the second terminal 300 is further optimized. While reducing the size of the electrical box in the first direction X and shrinking the overall volume, it effectively avoids mutual interference between wires during wiring, making the wiring layout easier to operate.

[0089] In some embodiments, such as Figures 1 to 23 As shown, to further optimize the layout and installation of the first terminal 200 and the second terminal 300 within the electrical box, a first mounting groove 112 is provided on the first side plate 110. The contact area between the second terminal 300 and the first side plate 110 is located within the first mounting groove 112. Specifically, the bottom plane or a specific mounting surface of the second terminal 300 is tightly fitted with the bottom surface and part of the side surface of the first mounting groove 112, forming a stable contact area. In this embodiment, a stepped surface is easier to process and occupies less internal space within the switch box.

[0090] In some embodiments, the first mounting groove 112 can be a mounting groove with two stepped surfaces, both of which are parallel to the first side plate 110. The two stepped surfaces are distributed sequentially along the third direction Z, differing only in the distance between the two stepped surfaces and the first side plate 110, i.e., the depth to which the two stepped surfaces are recessed from the first side plate 110 into the switch box is different. The first terminal 200 and the second terminal 300 are respectively disposed on the two stepped surfaces. In this case, both the first terminal 200 and the second terminal 300 are disposed within the first mounting groove 112. Applying this scheme can further reduce the thickness of the switch box along the third direction Z. Of course, the number of stepped surfaces can be increased, such as three or more.

[0091] This embodiment, by placing the second terminal 300 within the first mounting slot 112, not only enhances the stability of the second terminal 300's installation, ensuring a reliable connection even when the electrical box is subjected to vibration or external impact, reducing the risk of loosening, but also avoids interference between the second terminal 300 and the first terminal 200 during wiring due to the second terminal 300 protruding from the surface of the first side plate 110. This provides more space for wiring operations and optimizes the overall wiring layout of the electrical box. Furthermore, this design improves the overall compactness of the electrical box, making more rational use of limited space and aligning with the goal of miniaturizing the electrical box.

[0092] In some embodiments, such as Figures 1 to 11 and Figure 13 As shown, the first side plate 110 is recessed along the third direction Z towards the inner cavity of the electrical box to form a first mounting groove 112, and the second terminal 300 is mounted on any one of the groove walls of the first mounting groove 112. The first side plate 110 includes a side plate body 111, and the opening of the first mounting groove 112 penetrates through the side plate body 111.

[0093] It should be noted that the wall of the first mounting groove 112 can be made of galvanized steel sheet. Galvanized steel sheet has good corrosion resistance and can effectively prevent the steel from being affected by oxidation and corrosion. This allows the first mounting groove 112 to be used for a long time under harsh environmental conditions, improving the durability and reliability of the box 100. The side plate body 111 and the wall of the first mounting groove 112 can be connected by welding to form a tight connection, reducing the possibility of loosening and falling off. Alternatively, a detachable connection method can be used, such as using bolts, nuts, clips, and other connecting components. The detachable connection method provides great convenience for the maintenance and repair of the electrical box.

[0094] It should be noted that the first side plate 110 is recessed along the third direction Z towards the inner cavity of the electrical box, thereby forming the first mounting groove 112. This third direction Z is perpendicular to the extension direction of the plane where the first side plate 110 is located, allowing the first mounting groove 112 to cleverly utilize the depth space inside the electrical box. The first side plate 110 includes a side plate body 111, and the groove of the first mounting groove 112 penetrates through the side plate body 111. The shape and size of the groove can be customized according to the outline and installation requirements of the second terminal 300 to ensure that the second terminal 300 can be installed in the first mounting groove 112. The specific shape of the groove of the first mounting groove 112 is not specifically limited in this embodiment. The groove of the first mounting groove 112 penetrating through the side plate body 111 means that the groove of the first mounting groove 112 is set on the first side plate 110. At this time, the part of the first side plate 110 other than the groove is the side plate body 111.

[0095] It should be noted that the second terminal 300 can be flexibly installed on any wall of the first mounting slot 112. In actual operation, the most suitable wall can be selected for installation based on wiring requirements and the distribution of other components within the electrical box. For example, when it needs to be connected to an internal circuit in a specific location, the second terminal 300 is installed on the corresponding wall. To ensure the secure installation of the second terminal 300, the wall of the first mounting slot 112 can be provided with matching mounting structures, such as threaded holes and clips. These structures not only effectively fix the second terminal 300, preventing it from shifting during the operation of the electrical box, but also ensure a good electrical connection between the second terminal 300 and the first side plate 110. This design not only optimizes the spatial layout of the electrical box and reduces its overall size, but also greatly improves the convenience of wiring and effectively avoids interference between lines.

[0096] In some embodiments, such as Figure 1 and Figure 2 As shown, the first mounting groove 112 has a fourth width W4 in the first direction X. The fourth width W4 is smaller than the first width W1, and larger than the second width W2 and the third width W3. This means that the overlap rate of the orthographic projections of the first terminal 200 and the second terminal 300 in the second direction Y is greater than zero. From a spatial layout perspective, the two overlap to a certain extent in the second direction Y, further improving the compactness of the electrical box layout.

[0097] Specifically, the groove walls of the first mounting groove 112 include a first groove bottom wall 1125, a first groove side wall 1121, and a second groove side wall 1122. The first groove bottom wall 1125 and the side plate body 111 have a height difference in the third direction Z. This height difference allows the first mounting groove 112 to extend deep into the electrical box, making full use of the depth space. The first groove side wall 1121 and the second groove side wall 1122 are connected to each other. The first groove side wall 1121 and the second groove side wall 1122 are located between the first groove bottom wall 1125 and the side plate body 111, and connect the first groove bottom wall 1125 and the side plate body 111. This three-sided enclosed structure ensures the stability and structural integrity of the first mounting groove 112, providing a solid foundation for the installation of the second terminal 300. That is, the first mounting groove 112 is located at any edge of the side plate body 111 in the first direction X. This layout fully considers the space utilization and functional realization of the electrical box. While optimizing the wiring layout, it facilitates processing operations during the manufacturing stage, effectively reducing process complexity and production costs. In addition, when the electrical box is installed and used on site, and the wiring terminals need to be inspected or replaced, the first mounting groove 112 located on the edge of the side panel body 111 makes it easier for workers to access the second terminal 300, greatly improving the convenience of maintenance work.

[0098] It should be noted that the first groove bottom wall 1125 refers to the groove wall of the first mounting groove 112 that is parallel to the side plate body 111. The second terminal 300 is installed on the side of the first groove bottom wall 1125 away from the second side plate 120. This layout gives the second terminal 300 a clear direction during installation, reducing the possibility of installation errors. The second groove side wall 1122 is located on the side of the first groove bottom wall 1125 away from the third side plate 130 and is connected to the first groove bottom wall 1125. The second groove side wall 1122 is connected to the side plate body 111, the first groove bottom wall 1125, and part of the fifth side plate 150. This multi-faceted connection design not only enhances the structural strength of the first mounting groove 112 from multiple dimensions, but also provides additional protection to prevent the external environment from affecting the terminal.

[0099] Through the above technical solution, the second terminal 300 receives good support and protection during installation, while ensuring physical isolation from other components. This isolation significantly reduces electrical interference caused by dense wiring during electrical system operation, avoids signal crosstalk between different lines, improves the overall performance and reliability of the system, ensures stable and efficient operation of the electrical box, and meets the requirements of various complex operating conditions.

[0100] In some examples, such as Figure 24 and Figure 25As shown, the first mounting groove 112 is welded to the side plate body 111. To facilitate welding between the first mounting groove 112 and the side plate body 111, a first connecting portion 1127 is provided along the third direction Z on the side of the bottom wall 1125 of the first groove near the third side plate 130. The first connecting portion 1127 is welded to the inner wall of the third side plate 130, increasing the welding area between the first mounting groove 112 and the third side plate 130 and improving the connection strength. Through welding, the first connecting portion 1127 ensures a firm connection between the first mounting groove 112 and the third side plate 130, increasing the stability of the entire structure. A second connecting portion 113 is provided along the third direction Z on the side plate body 111 away from the fourth side plate 140. The second connecting portion 113 is welded to the side wall 1122 of the second groove, increasing the welding area between the first mounting groove 112 and the side plate body 111 and improving the connection strength. Through welding, the second connecting part 113 ensures a firm connection between the first mounting groove 112 and the side plate body 111, increasing the stability of the entire structure. The presence of the first connecting part 1127 and the second connecting part 113 increases the welding contact area, improving the strength and stability of the weld. The first connecting part 1127 and the second connecting part 113 strengthen the connection between the first mounting groove 112 and the side plate body 111, ensuring the stability and reliability of the entire structure.

[0101] In some embodiments, such as Figure 3 and Figure 4 As shown, another embodiment satisfies that the fourth width W4 is less than the first width W1, and the fourth width W4 is greater than the second width W2 and the fourth width W4 is greater than the third width W3. This embodiment also ensures that the overlap rate of the orthographic projections of the first terminal 200 and the second terminal 300 in the second direction Y is greater than zero, achieving a certain degree of spatial overlap between the two in the second direction Y, further improving the compactness of the electrical box layout. The first mounting groove 112 also includes a third groove sidewall 1123, which is disposed on the side of the first groove sidewall 1121 away from the second groove sidewall 1122, that is, located at the other opposite edge of the first mounting groove 112. The third groove sidewall 1123 is disposed between the first groove bottom wall 1125 and the side plate body 111, and connects the first groove bottom wall 1125 and the side plate body 111. The bottom wall 1125 of the first slot and the side plate body 111 maintain a height difference in the third direction Z. This height difference not only allows the first mounting slot 112 to penetrate deep into the electrical box and make full use of the depth space of the electrical box, but also, together with the side wall 1123 of the third slot, forms a closed structure that is surrounded on all four sides.

[0102] It should be noted that the first groove bottom wall 1125, as the side wall of the first mounting groove 112 parallel to the side plate body 111, is also installed on the side of the first groove bottom wall 1125 away from the second side plate 120. This layout provides clear directional guidance for the second terminal 300 during installation, reducing the probability of installation errors. The second groove side wall 1122 is located on the side of the first groove bottom wall 1125 away from the third side plate 130 and is connected to the first groove bottom wall 1125. The second groove side wall 1122 is connected to the side plate body 111, the first groove bottom wall 1125, and part of the fifth side plate 150. At the same time, the third groove side wall 1123 also connects to the first groove bottom wall 1125 and the side plate body 111, forming a symmetrical and stable support structure with the second groove side wall 1122. This multi-faceted connection design not only enhances the structural strength of the first mounting groove 112 in all aspects but also provides more rigorous protection for the second terminal 300, effectively resisting the influence of the external environment on the terminal.

[0103] Through the above technical solution, the second terminal 300 receives more stable support and comprehensive protection during installation, further ensuring physical isolation from other components. During the operation of the electrical system, this physical isolation can significantly reduce electrical interference caused by dense wiring, prevent signal crosstalk between different lines, significantly improve the overall performance and reliability of the system, and enable the electrical box to operate stably and efficiently, easily meeting the usage requirements of various complex working conditions.

[0104] In some embodiments, such as Figure 5 As shown, the first mounting groove 112 has a fourth width W4 in the first direction X, which is equal to the first width W1. The first mounting groove 112 includes a first groove bottom wall 1125 and a first groove side wall 1121. There is a height difference between the first groove bottom wall 1125 and the side plate body 111 in the third direction Z. This height difference allows the first mounting groove 112 to extend into the electrical box, making full use of the depth space inside the electrical box and creating more ample space for the installation of the second terminal 300 and other electrical components. The first groove side wall 1121 is disposed between the first groove bottom wall 1125 and the side plate body 111 and connects the first groove bottom wall 1125 and the side plate body 111. That is, the first groove bottom wall 1125 and the first groove side wall 1121 together form a semi-enclosed structure, providing solid and stable support for the installation of the second terminal 300.

[0105] In the manufacturing process of the electrical box, this relatively simple first mounting slot 112 structure design effectively reduces processing difficulty, shortens the production cycle, reduces the increase in production costs caused by complex processes, and significantly improves production efficiency. When the electrical box is put into actual use, if the second terminal 300 needs to be inspected or replaced, the first mounting slot 112 has a large operating space along the first direction X, allowing workers to easily access the second terminal 300, greatly improving the convenience of maintenance work.

[0106] It should be noted that the first groove bottom wall 1125 refers to the groove wall in the first mounting groove 112 that is parallel to the side plate body 111. Typically, the second terminal 300 is installed on the side of the first groove bottom wall 1125 facing away from the second side plate 120. This layout gives the second terminal 300 a clear installation direction, significantly reducing the probability of errors during installation. Furthermore, the first groove side wall 1121 not only provides lateral support for the second terminal 300, preventing displacement in the first direction X, but also, to a certain extent, isolates the second terminal 300 from the influence of the external environment, thus protecting it.

[0107] Through the above technical solution, the second terminal 300 receives excellent support and protection during installation, ensuring effective physical isolation from other components. During electrical system operation, this physical isolation significantly reduces electrical interference caused by dense wiring layouts, effectively avoids signal crosstalk between different lines, and significantly improves the overall performance and reliability of the system, ensuring the electrical box can operate stably and efficiently under various complex operating conditions.

[0108] In some examples, such as Figure 26 and Figure 27 As shown, to facilitate welding between the first mounting grooves 112 and 112, a third connecting portion 1128 can be provided along the third direction Z on the side of the bottom wall 1125 of the first groove near the third side plate 130. The third connecting portion 1128 is welded to the inner wall of the third side plate 130. The third connecting portion 1128 increases the welding area between the first mounting groove 112 and the third side plate 130, improving the connection strength. Through welding, the third connecting portion 1128 can ensure a firm connection between the first mounting groove 112 and the third side plate 130, increasing the stability of the entire structure. Alternatively, a fourth connecting portion 1129 can be provided along the third direction Z on the side of the bottom wall 1125 of the first groove near the fourth side plate 140. The fourth connecting portion 1129 is welded to the inner wall of the fourth side plate 140. The fourth connecting portion 1129 increases the welding area between the first mounting groove 112 and the fourth side plate 140, improving the connection strength. The third connecting part 1128 and the fourth connecting part 1129 can ensure a firm connection between the first mounting groove 112 and the fourth side plate 140, increasing the stability of the entire structure.

[0109] In some embodiments, such as Figure 6 As shown, the first mounting groove 112 has a fourth width W4 in the first direction X, which is equal to the first width W1. The first mounting groove 112 includes a first groove bottom wall 1125 and a first groove side wall 1121. There is a height difference between the first groove bottom wall 1125 and the side plate body 111 in the third direction Z. The first groove side wall 1121 is disposed between the first groove bottom wall 1125 and the side plate body 111, and connects the first groove bottom wall 1125 and the side plate body 111. Specifically, the first groove side wall 1121 is inclined in the third direction Z, and the second terminal 300 is mounted on the first groove side wall 1121 or the first groove bottom wall 1125.

[0110] It should be noted that the first mounting groove 112 has a first groove bottom wall 1125 and a first groove side wall 1121. There is a height difference between the first groove bottom wall 1125 and the side plate body 111 along the third direction Z. This height difference allows the first mounting groove 112 to extend into the electrical box, deeply exploring the longitudinal space of the electrical box and creating sufficient space for the installation of the second terminal 300 and other electrical components. The first groove side wall 1121 is disposed between the first groove bottom wall 1125 and the side plate body 111, firmly connecting the two.

[0111] It is worth noting that the inclination of the first slot sidewall 1121 towards the third direction Z refers to the inclination of the first slot sidewall 1121 relative to the side plate body 111 towards the second side plate 120. This inclination creates a deeper installation area within the limited electrical box space. When the second terminal 300 is installed on the inclination of the first slot sidewall 1121, the cable can be arranged along the inclination angle deeper into the electrical box, effectively avoiding intersection with the wiring of the first terminal 200 located near the surface of the first side plate 110. This inclination design, on the one hand, changes the spatial form inside the first mounting slot 112, providing a differentiated installation position for the second terminal 300; on the other hand, the inclination of the first slot sidewall 1121 can guide the cable routing, reduce cable tangling, and optimize the wiring environment.

[0112] It should be noted that the second terminal 300 can be installed on either the side wall 1121 or the bottom wall 1125 of the first slot, as needed. When the second terminal 300 is installed on the side wall 1121, the inclined side wall 1121 provides an inclined mounting plane, cleverly utilizing space while optimizing the cable connection path and reducing the possibility of line crossover interference. If the second terminal 300 is installed on the bottom wall 1125, the horizontal plane provided by the bottom wall 1125 ensures the stability of the installation, while the side wall 1121 provides side protection for the second terminal 300, reducing the impact of the external environment. In the manufacturing process, once the electrical box is put into use, regardless of whether the second terminal 300 is installed on the side wall 1121 or the bottom wall 1125, the spacious space of the first mounting slot 112 in the first X direction allows workers to easily inspect and replace the second terminal 300, significantly improving the efficiency of maintenance work.

[0113] Through the above technical solution, the second terminal 300 obtains stable support and effective protection during installation, ensuring good physical isolation from other components. During electrical system operation, it greatly reduces electrical interference caused by dense wiring, prevents signal crosstalk between different lines, significantly improves the overall performance and reliability of the system, and allows the electrical box to operate stably and efficiently under various complex operating conditions.

[0114] In some embodiments, such as Figure 7 As shown, the first mounting slot 112 has a fourth width W4 in the first direction X, which is equal to the first width W1. This greatly expands the layout range of the first terminal 200 and the second terminal 300 in the first direction X of the electrical box, and while meeting the requirements of wiring convenience and line anti-interference, it lays the foundation for creating a more compact and efficient electrical box structure.

[0115] The first mounting groove 112 includes a bottom wall 1125 and a side wall 1121. There is a height difference between the bottom wall 1125 and the side plate body 111 along the third direction Z. This height difference allows the first mounting groove 112 to extend into the electrical box, deeply utilizing the box's longitudinal space and creating ample space for the installation of the second terminal 300 and other electrical components, effectively alleviating layout problems caused by insufficient space. The side wall 1121 is located between the bottom wall 1125 and the side plate body 111, firmly connecting them and forming a stable structural frame for the first mounting groove 112.

[0116] Specifically, both the first slot sidewall 1121 and the first slot bottomwall 1125 are inclined in the third direction Z. It is worth noting that this inclination means that the first slot sidewall 1121 is inclined relative to the side plate body 111 towards the second side plate 120, and the first slot bottomwall 1125 is inclined relative to the side plate body 111 towards the second side plate 120, forming an obtuse angle between them. This unique obtuse angle inclination structure alters the spatial layout of the first mounting slot 112, creating a deeper, inclined mounting area that provides a mounting position for the second terminal 300. When the second terminal 300 is installed in this area, the cable can be naturally arranged along the inclined surface, effectively avoiding crossing and tangling with the wiring of other components near the surface of the first side plate 110, greatly optimizing the wiring environment.

[0117] Through the above technical solution, in terms of electrical performance, the physical separation formed by the inclined first slot sidewall 1121 and the first slot bottom wall 1125 can significantly reduce electrical interference caused by dense wiring during the operation of the electrical box, ensuring the stability of the wiring operation within the electrical box and improving the overall performance of the electrical system. In the later maintenance stage, the inclined first slot sidewall 1121 and the first slot bottom wall 1125 allow personnel to observe and operate more clearly when inspecting and replacing the second terminal 300, greatly improving the convenience of electrical box maintenance, shortening downtime for maintenance, and increasing equipment availability.

[0118] In some embodiments, the included angle A between the first slot sidewall 1121 and the first slot bottom wall 1125 satisfies 105° < A ≤ 120°. Specifically, the included angle A can be any value or a range between any two values ​​from 106°, 107°, 108°, 109°, 110°, 111°, 112°, 113°, 114°, 115°, 116°, 117°, 118°, 119°, and 120°. It should be noted that, due to the phase sequence requirements of three-phase AC power, a silkscreen is printed above the second terminal 300. The presence of the included angle A makes it easier for operators to see the silkscreen on the second terminal 300, facilitating wiring. The silkscreen indicates the corresponding wiring information, such as phase sequence and voltage. In this way, operators can perform correct wiring according to the instructions on the silkscreen, avoiding wiring errors and phase sequence confusion, thus improving the accuracy and safety of wiring.

[0119] In some embodiments, such as Figure 9As shown, the groove walls of the first mounting groove 112 include a first groove bottom wall 1125, a first groove side wall 1121, and a fourth groove side wall 1124. The first groove bottom wall 1125 and the side plate body 111 have a height difference along the third direction Z. The first groove side wall 1121 and the fourth groove side wall 1124 are positioned opposite each other on both sides of the first groove bottom wall 1125 along the second direction Y. The first groove side wall 1121 is located between the first groove bottom wall 1125 and the side plate body 111, and connects the first groove bottom wall 1125 and the side plate body 111. The fourth groove side wall 1124 is located between the first groove bottom wall 1125 and the side plate body 111, and connects the first groove bottom wall 1125 and the side plate body 111. This embodiment improves structural strength while providing multi-directional mounting options for the second terminal 300.

[0120] It should be noted that in this embodiment, the first mounting groove 112 enhances mechanical stability. Through the symmetrical groove sidewall support design, it effectively disperses stress during terminal installation, reducing the risk of deformation due to vibration or external forces. The second terminal 300 can be flexibly installed on the bottom wall 1125, the side wall 1121, or the side wall 1124 of the first groove: when installed on the bottom wall 1125, it provides horizontal support, suitable for high-current terminals or scenarios requiring a stable foundation; when installed on the side wall 1121 or the side wall 1124, it can be vertically fixed, with the tilt angle optimizing cable routing. The groove walls also form a local shielding space, reducing the impact of external electromagnetic interference on terminal signals, especially suitable for high-frequency signal transmission scenarios.

[0121] In terms of manufacturing process, the tank body is made of galvanized steel sheet by stamping. The side plate body can be formed with the tank wall in one stamping process, or it can adopt a detachable structure. The fourth tank side wall 1124 is connected to the first tank side wall 1121 by a 90° bend to the bottom wall of the tank to ensure the squareness of the tank body. Insulating rubber pads can be attached to the bottom wall of the tank to avoid direct contact between the terminals and metal, thereby improving electrical safety.

[0122] In some examples, multiple terminals can be mounted on the bottom wall 1125 of the first slot, the side wall 1121 of the first slot, and the side wall 1124 of the fourth slot, respectively, to accommodate more terminals while keeping the dimension W1 in the first direction X unchanged. For example, the total width of the three terminals in the first direction X is W. 总 The cable is compressed to within W1 through a third-party Z-axis layer. The first slot sidewall 1121 and the fourth slot sidewall 1124 can also guide the cable to penetrate deep into the box 100 along the third-party Z-axis, avoiding crossing with the first terminal 200 line on the surface of the first side plate 110, and optimizing the overall wiring efficiency in conjunction with the cable outlet hole design.

[0123] The above technical solutions achieve a balance between compact layout and functional implementation, and are particularly suitable for industrial control fields with high requirements for mechanical stability and electromagnetic compatibility, providing a solution for the miniaturization and high reliability design of electrical boxes.

[0124] In some embodiments, such as Figure 10 As shown, the first mounting groove 112 includes a bottom wall 1125 and a side wall 1121. The bottom wall 1125 is inclined in the third direction Z and extends into the inner cavity of the electrical box, forming a spatial height difference with the side plate body 111. The inclined design fully utilizes the depth space inside the electrical box. The side wall 1121 serves as a connecting hub, located between the bottom wall 1125 and the side plate body 111, tightly connecting the two, and together with the inclined bottom wall 1125, it constructs a three-dimensional first mounting groove structure.

[0125] It should be noted that the first groove sidewall 1121 is securely connected to the side plate body 111, the second side plate 120, and the first groove bottom wall 1125, forming multi-dimensional support; the first groove bottom wall 1125 is reliably connected to the side plate body 111, the second side plate 120, the first groove sidewall 1121, and the fifth side plate 150. This multi-faceted connection method greatly enhances the structural strength of the first mounting groove 112, enabling it to withstand the mechanical stress during the installation and wiring of the second terminal 300.

[0126] It should be noted that the inclined design of the first slot bottom wall 1125 provides a differentiated mounting surface for the second terminal 300. When the second terminal 300 is installed on the first slot bottom wall 1125, the cable can be arranged away from the first terminal 200 along the inclined angle, avoiding intersection with the wiring of the first terminal 200 on the surface of the first side plate 110. At the same time, the inclined first slot bottom wall 1125 increases the internal space height of the slot, providing more space for the terminal and cable arrangement without increasing the dimension in the first direction X.

[0127] By extending the space from the third direction (Z), the size limitations of the first direction (X) are cleverly avoided. While compressing the overall volume of the electrical box, a stable installation foundation is provided for the second terminal 300, ensuring a reasonable wiring layout, effectively reducing line interference, and improving the functionality and practicality of the electrical box.

[0128] In some examples, such as Figure 11 As shown ( Figure 11(Only one multi-terminal installation scheme is shown.) When multiple terminals are installed, the second terminal 300 can be installed on the inclined bottom wall 1125 of the first slot. Utilizing its inclined space, the cable extends along the third direction (Z) away from other terminal cables, avoiding dense arrangement with other terminals (such as the first terminal 200) installed on the side panel body 111 in the first direction (X). If more terminals need to be installed, installation points can be expanded at locations such as the side wall 1121 of the first slot. Using the three-dimensional space of the first installation slot, multiple terminals can be arranged in layers along the second direction (Y) and the third direction (Z). This design breaks through the limitations of traditional single arrangement along the first direction (X). While maintaining or reducing the size of the first direction (X), it accommodates more terminals, ensuring convenient wiring and avoiding mutual interference between lines. This effectively solves the problems of excessive size and messy wiring caused by multi-terminal installation in traditional electrical boxes.

[0129] In some embodiments, such as Figure 12 As shown, the contact area between the first terminal 200 and the first side plate 110 has a height difference relative to the contact area between the second terminal 300 and the first side plate 110 in the second direction Y or the third direction Z. The first side plate 110 includes a side plate body 111 and an inclined portion 114 connected to each other. The inclined portion 114 is inclined in the third direction Z, forming a spatial angle with the side plate body 111.

[0130] It should be noted that the first terminal 200 is mounted on the surface of the side plate body 111, and its contact area with the first side plate 110 is a key part for mechanical fixation and electrical connection; the second terminal 300 is mounted on the inclined part 114, and the contact area of ​​the two also serves the functions of stable installation and electrical conduction. Because the inclined part 114 is inclined in the third direction Z, the second terminal 300 and the first terminal 200 are spatially misaligned in the third direction Z. From the perspective of the second direction Y, there may also be a vertical positional difference between the two. This multi-dimensional height difference breaks the limitation of traditional terminals being arranged only along the first direction X. That is, the inclined design of the inclined part 114 causes the second terminal 300 to be spatially misaligned with the first terminal 200 in the third direction Z. By using the height difference in the second direction Y or the third direction Z, the dense arrangement of terminals in the first direction X is avoided, which reduces the size of the electrical box in the first direction X, optimizes the wiring operation space, reduces the risk of mutual interference between lines, improves the utilization rate of internal space, and ensures that the electrical box meets the dual requirements of wiring convenience and line anti-interference with a compact size.

[0131] Functionally, through the above technical solution, the inclined portion 114 utilizes the space in the third direction Z to arrange the second terminal 300 deep into the electrical box, reducing the occupation of the first direction X dimension and shrinking the volume of the electrical box. Simultaneously, the staggered distribution of terminals in different directions provides more wiring space, allowing cables to be arranged separately along the direction of the side plate body 111 and the inclined portion 114, avoiding wire crossing and tangling, and reducing the risk of electromagnetic interference. In terms of manufacturing process, the first side plate 110 can be integrally formed from galvanized steel sheet, ensuring a firm connection between the side plate body 111 and the inclined portion 114, balancing strength and corrosion resistance. The inclined angle of the inclined portion 114 is optimized to meet the terminal installation space requirements while facilitating operator observation of terminal markings and wiring operations.

[0132] In some embodiments, such as Figure 13 As shown, the contact area between the first terminal 200 and the first side plate 110 has a height difference relative to the contact area between the second terminal 300 and the first side plate 110 in the second direction Y or the third direction Z. The first side plate 110 has a protrusion 115 protruding in the third direction Z toward a direction away from the electrical box, and the contact area between the first terminal 200 and the first side plate 110 is located on the protrusion 115.

[0133] It should be noted that, from a spatial perspective, the protrusion 115, as an extension of the first side plate 110, forms an independent mounting position in the third direction Z by protruding outward. The first terminal 200 is fixed to the protrusion 115, and its contact area undertakes the functions of mechanical connection and electrical conduction, while the second terminal 300 is installed in the non-protrusion area of ​​the first side plate 110. Due to the presence of the protrusion 115, a height difference is naturally formed between the two in the third direction Z.

[0134] The above technical solution significantly optimizes space utilization: on the one hand, the bump 115 extends the first terminal 200 outward, freeing up space in the first side plate 110 body, making the electrical box more compact in the first direction X; on the other hand, the staggered distribution of terminals in the third direction Z avoids the congestion of lines caused by traditional one-dimensional arrangement, allowing cables to be arranged along different spatial dimensions during wiring, reducing the risk of mutual interference. In terms of manufacturing process, the bump 115 and the first side plate 110 can be integrally stamped from galvanized steel sheets, ensuring both structural strength and corrosion resistance while simplifying the production process. Through the bump 115, the electrical box achieves efficient utilization of three-dimensional space, reducing its size while ensuring wiring convenience and anti-interference capabilities, providing a solution for compact electrical equipment.

[0135] In some embodiments, such as Figure 20 and Figure 21As shown, the dimension of the first mounting groove 112 in the third direction Z is the first spacing L1, the dimension of the second terminal 300 in the third direction Z is the second spacing L2, the dimension of the first terminal 200 in the third direction Z is the third spacing L3, and the spacing between the first lead 230 of the first terminal 200 and the side plate body 111 is the fourth spacing L4. The sum of the first spacing L1 and the fourth spacing L4 is greater than the second spacing L2.

[0136] It should be noted that, based on the dimensional relationship that the sum of the first spacing L1 and the fourth spacing L4 is greater than the second spacing L2, there are two implementation schemes:

[0137] Firstly, such as Figure 20 As shown, if the second spacing L2 is greater than the first spacing L1, it means that the second terminal 300 is partially exposed in the first mounting groove 112, and the second terminal 300 is not completely contained within the first mounting groove 112. This design utilizes the external space of the first mounting groove 112, making it easier for operators to directly access the exposed part of the second terminal 300, thus improving wiring convenience; at the same time, the first mounting groove 112 provides support for the bottom of the second terminal 300, ensuring structural stability.

[0138] Secondly, such as Figure 21 As shown, if the second spacing L2 is also less than the first spacing L1, that is, the second terminal 300 is completely contained within the first mounting slot 112. In this case, the first mounting slot 112 provides full enclosure protection for the second terminal 300, effectively resisting external impacts, dust, and other interference, making it suitable for scenarios with high protection requirements; the orderly layout of the first mounting slot 112 also facilitates centralized cable management and reduces cable clutter. Additionally, as... Figure 21 , Figure 22 , Figure 23 As shown, the second terminal 300 can be installed on any wall of the first mounting slot 112.

[0139] It should be noted that, except Figure 20 and Figure 21 The proposed solution Figure 1 , Figure 3 , Figure 5 , Figure 8 Both of the schemes shown can be designed using the two implementation schemes described in this embodiment.

[0140] The above scheme defines the dimensional relationship between the first spacing L1, the fourth spacing L4 and the second spacing L2 and matches two implementation schemes. This not only meets the diverse needs of terminal installation, protection and operation in different scenarios, but also optimizes the space utilization of the third direction Z, so that the electrical box achieves a balance between the diversification and refinement of functionality and structural design.

[0141] In some embodiments, such as Figure 14 , Figure 15and Figure 16 As shown, the contact area between the first terminal 200 and the first side plate 110 has a height difference relative to the contact area between the second terminal 300 and the first side plate 110 in the second direction Y or the third direction Z. The housing 100 includes a fifth side plate 150 connected to the first side plate 110. The fifth side plate 150 is disposed on one side of the first side plate 110 in the second direction Y, providing support for the spatial layout. The housing 100 has a second mounting groove 170, which has an opening on the fifth side plate 150. The groove wall of the second mounting groove 170 includes a second groove bottom wall 171 and a fifth groove side wall 172, with the second groove bottom wall 171 securely connected to the fifth side plate 150.

[0142] The first side plate 110 includes a side plate body 111. The side plate body 111 and the second groove bottom wall 171 have a height difference in the third direction Z. The fifth groove side wall 172 connects the two, forming a three-dimensional second mounting groove 170. In the third direction Z, the frontal projection of the side plate body 111 and the second groove bottom wall 171 overlaps, realizing three-dimensional utilization of the limited space. The first terminal 200 is installed on the side of the side plate body 111 facing away from the second groove bottom wall 171, forming a spatial misalignment with the second terminal 300 in the second mounting groove 170. To accommodate more installation conditions, the overlap between the side panel body 111 and the projected portion of the second groove bottom wall 171 includes two overlap methods. One is that the entire projection of the second groove bottom wall 171 overlaps with the projection of the side panel body 111. The other is, for example, if the length of the first side panel 110 along the second direction Y is less than the length of the box 100 in the Y direction, then the lower end of the second groove bottom wall 171 along the second direction Y is further downward relative to the lower end of the first side panel 110 along the second direction Y, and the projected portion of the second groove bottom wall 171 overlaps with the projected portion of the side panel body 111.

[0143] Functionally, the second mounting slot 170 utilizes the space in the third direction Z to arrange the second terminal 300 deep into the internal cavity of the box through a height difference. This reduces the size occupied in the first direction X, compressing the volume of the electrical box, and also creates a height difference between the first terminal 200 and the second terminal 300 in the second direction Y or the third direction Z, breaking the limitations of traditional dense arrangement in a single direction. During wiring, cables can be arranged separately along the side plate body 111 and the second mounting slot 170, reducing the risk of cross-interference and improving wiring convenience and electrical system stability.

[0144] Furthermore, the structure of the second mounting slot 170 enhances stability: the fifth slot side wall 172 connects the second slot bottom wall 171 to the side plate body 111, and the second slot bottom wall 171 is connected to the fifth side plate 150. This multi-faceted connection provides a stable mounting foundation for the second terminal 300, allowing it to withstand installation and wiring stresses. This layout, while ensuring the structural strength of the box, achieves a compact design through space optimization, effectively solving the problems of large size and wiring interference in traditional electrical boxes, thus improving functionality and practicality.

[0145] In some embodiments, such as Figure 17 and Figure 18 The electrical box includes a box body 100, a first terminal 200, and a second terminal 300. The box body 100 includes a first side plate 110, the first side plate 110 having a first width W1 in the first direction X. The first terminal 200 is mounted on the first side plate 110, and the distance between its two opposing first sidewalls 210 along the first direction X is a second width W2. The second terminal 300 is mounted on the first side plate 110, and the distance between its two opposing second sidewalls 310 along the first direction X is a third width W3. The sum of the second width W2 and the third width W3 is greater than the first width W1, and both W2 and W3 are less than W1. Furthermore, in the second direction Y, the orthographic projections of the first terminal 200 and the second terminal 300 overlap. The overlap here refers to the partial or complete overlap between the orthographic projection of the first terminal 200 and the orthographic projection of the second terminal 300. For example, the first terminal 200 is located directly above the second terminal 300 along the second direction Y. In this case, the first terminal 200 and the second terminal 300 are misaligned in the second direction Y, and the orthographic projections of the first terminal 200 and the second terminal 300 completely overlap. Alternatively, the first terminal 200 is located above the second terminal 300 along the second direction Y, and offset by a set distance along the first direction X. This distance is usually less than the second width W2 and the third width W3. In this case, the first terminal 200 and the second terminal 300 are misaligned in both the second direction Y and the first direction X, and the orthographic projections of the first terminal 200 and the second terminal 300 partially overlap. Alternatively, the second terminal 300 is disposed in the first mounting groove 112, and the second terminal 300 is located directly above the first terminal 200. In this case, the first terminal 200 and the second terminal 300 are misaligned in both the second direction Y and the third direction Z. Alternatively, the second terminal 300 is disposed in the first mounting groove 112, and the second terminal 300 is offset from the first terminal 200 by a set distance. In this case, the first terminal 200 and the second terminal 300 are misaligned in the second direction Y, the third direction Z, and the first direction Z.

[0146] It should be noted that traditional electrical boxes, designed to accommodate terminals, require W1 ≥ W2 + W3, resulting in volume redundancy. This embodiment sets W2 + W3 > W1, and by combining the overlapping projections in the second direction Y, it utilizes three-dimensional spatial layout reconstruction to eliminate dependence on linear extension in the first direction X, thus compressing the electrical box volume. For example, the first terminal 200 can be installed in the upper region of the first side plate 110, and the second terminal 300 can be structurally offset and arranged in the lower region. The two overlap in the space of the second direction Y, eliminating the need for linear extension in the first direction X.

[0147] It should be noted that volume optimization was achieved through the planning of the terminal space layout. The overlapping projections of the first terminal 200 and the second terminal 300 in the second direction Y essentially utilize the vertical spatial dimension for layered layout. This layout, combined with different cable access directions, achieves functional optimization. The cables of the first terminal 200 and the second terminal 300 can be accessed from either side of the terminal while ensuring they do not intersect. The difference in cable access direction avoids crossing and tangling of the lines in the first direction X. For example, the cable of the first terminal 200 can extend to the right, and the cable of the second terminal 300 can extend to the left or downwards, utilizing three-dimensional spatial routing to reduce the risk of electromagnetic interference while ensuring sufficient space for wiring operations.

[0148] By using the above technical solutions, relying solely on the overlapping layout of terminal space projection and cable direction planning, the size of the electrical box in the first direction X is reduced, achieving compactness, while the differentiated design of cable access direction ensures wiring convenience and avoids line interference.

[0149] In some embodiments, the first terminal 200 and the second terminal 300 are an integral structure, which fits snugly against the first side plate 110 and forms a spatial fit with the first mounting groove 112. It should be noted that this integrated structure simplifies the installation process. By fitting the entire structure against the first side plate 110, the steps of independently installing multiple terminals are reduced, improving assembly efficiency. Secondly, the tight fit against the first side plate 110 enhances structural stability and reduces the risk of terminal loosening due to vibration and other factors. The integrated structure optimizes the layout within a limited space, and combined with the position of the first mounting groove 112, makes cable access more orderly, avoiding wiring chaos. The fitting of the integrated structure with the first side plate 110 ensures electrical connection functionality while improving the utilization of the internal space of the electrical box, providing support for compact design and balancing functionality and space efficiency. Furthermore, the integrated structure simplifies the wiring and maintenance process, as the first terminal 200 and the second terminal 300 directly face the outside, making them easily accessible without opening the electrical box.

[0150] In some embodiments, such as Figure 19As shown, the first terminal 200 also has a third sidewall 220 and a first lead 230. The third sidewall 220 is disposed between the two first sidewalls 210. One end of the first lead 230 is connected to either the first sidewall 210 or the third sidewall 220, and the other end extends in a direction that avoids the second terminal 300. The second terminal 300 also has a fourth sidewall 320 and a second lead 330. The fourth sidewall 320 is disposed between the two second sidewalls 310. One end of the second lead 330 is connected to either the second sidewall 310 or the fourth sidewall 320, and the other end extends in a direction that avoids the first terminal 200.

[0151] It should be noted that the third sidewall 220 refers to the sidewall that surrounds the first terminal 200 between the two first sidewalls 210. There are four sidewalls that surround the first terminal 200 between the two first sidewalls 210, among which the sidewall connected to the first side plate 110 is not part of the third sidewall 220. That is, the first lead 230 can... Figure 19 The first terminal 200 extends from its top, right side, or bottom towards the second terminal 300. The fourth sidewall 320 refers to the sidewall that surrounds the second terminal 300 between the two second sidewalls 310. There are four sidewalls that surround the second terminal 300 between the two second sidewalls 310, but the sidewall connected to the first mounting groove 112 is not part of the fourth sidewall 320. That is, the second lead 330 can... Figure 19 The top, right or bottom of the second terminal 300 extends toward the first terminal 200.

[0152] It should be noted that the definition of the third sidewall 220 and the fourth sidewall 320 clarifies the basis for the lead wire connection. The first lead wire 230 and the second lead wire 330 extend in a direction that avoids each other's terminals, essentially planning differentiated circuit routes within a limited space to avoid mutual interference. This design not only ensures the stability of the connection between the terminal and the side plate and the first mounting slot 112, but also optimizes the wiring logic, providing structural support for the orderly arrangement of wiring inside the electrical box, achieving a dual optimization of electrical connection function and spatial layout.

[0153] This application also discloses a power conversion device, including an electrical box and a power-consuming device as described in the above embodiments. This embodiment can have all the technical features and effects of the electrical box described above, which will not be repeated here. The power-consuming device is connected to the first terminal 200 of the electrical box. In this power conversion device, the electrical box plays a key role, realizing the distribution and control of electrical energy by connecting the power-consuming device and the power supply. The first terminal 200 of the electrical box serves as the power input terminal of the power-consuming device. The first terminal 200 is connected to the second terminal 300 through the internal circuit of the housing cavity. The second terminal 300 transmits electrical energy from the power conversion device to the power-consuming device to meet its power demand. This connection method simplifies circuit wiring and improves the reliability and safety of the system. The power-consuming device can be one or a combination of a battery cell, circuit breaker, inverter circuit, PCS (energy storage converter) circuit, DC / DC, DC / AC, and AC / DC circuit.

[0154] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0155] The electrical box and power conversion device provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electrical box, characterized in that, include: The box body (100) includes a first side plate (110) on which a first terminal (200) and a second terminal (300) are mounted; The first terminal (200) and the second terminal (300) are offset in at least one of the first direction (X), the second direction (Y) or the third direction (Z).

2. The electrical box according to claim 1, characterized in that, The first side plate (110) has a first width W1 in the first direction (X); The first terminal (200) is mounted on the first side plate (110). The first terminal (200) has two first side walls (210) arranged opposite to each other along the first direction (X). In the first direction (X), the distance between the two first side walls (210) is a second width W2. The second terminal (300) is mounted on the first side plate (110). The second terminal (300) has two second side walls (310) arranged opposite to each other along the first direction (X). In the first direction (X), the distance between the two second side walls (310) is a third width W3. Wherein, the sum of the second width W2 and the third width W3 is greater than the first width W1, and both the second width W2 and the third width W3 are less than the first width W1.

3. The electrical box according to claim 1 or 2, characterized in that, The contact area between the first terminal (200) and the first side plate (110) and the contact area between the second terminal (300) and the first side plate (110) has a height difference in at least one of the first direction (X), the second direction (Y) or the third direction (Z), and the first direction (X), the second direction (Y) and the third direction (Z) intersect each other.

4. The electrical box according to claim 3, characterized in that, The first side plate (110) has a first mounting groove (112), and the contact area between the second terminal (300) and the first side plate (110) is located in the first mounting groove (112).

5. The electrical box according to claim 4, characterized in that, The first side plate (110) is recessed into the inner cavity of the electrical box along the third direction (Z) to form the first mounting groove (112), and the second terminal (300) is mounted on any one of the groove walls of the first mounting groove (112); The first side plate (110) includes a side plate body (111), and the opening of the first mounting groove (112) passes through the side plate body (111).

6. The electrical box according to claim 5, characterized in that, The width of the first mounting groove (112) in the first direction (X) is less than the first width W1, where the first width W1 is the dimension of the first side plate (110) in the first direction (X). The first mounting groove (112) has a groove wall including a first groove bottom wall (1125), a first groove side wall (1121), and a second groove side wall (1122). The first groove bottom wall (1125) and the side plate body (111) have a height difference in the third direction (Z). The first groove side wall (1121) and the second groove side wall (1122) are connected to each other. The first groove side wall (1121) and the second groove side wall (1122) are disposed between the first groove bottom wall (1125) and the side plate body (111) and connect the first groove bottom wall (1125) and the side plate body (111).

7. The electrical box according to claim 6, characterized in that, The first mounting groove (112) further includes a third groove sidewall (1123), which is disposed on the side of the first groove sidewall (1121) away from the second groove sidewall (1122). The third groove sidewall (1123) is disposed between the first groove bottom wall (1125) and the side plate body (111), and connects the first groove bottom wall (1125) and the side plate body (111).

8. The electrical box according to claim 6, characterized in that, The angle between the first sidewall (1121) and the first bottomwall (1125) of the first groove is A, which satisfies 105°<A≤120°.

9. The electrical box according to claim 5, characterized in that, The width of the first mounting groove (112) in the first direction (X) is equal to the first width W1, where the first width W1 is the dimension of the first side plate (110) in the first direction (X); The first mounting groove (112) includes a first groove bottom wall (1125) and a first groove side wall (1121). The first groove bottom wall (1125) and the side plate body (111) have a height difference along the third direction (Z). The first groove side wall (1121) is disposed between the first groove bottom wall (1125) and the side plate body (111) and connects the first groove bottom wall (1125) and the side plate body (111).

10. The electrical box according to claim 9, characterized in that, The first groove sidewall (1121) is inclined to the third direction (Z); the second terminal (300) is mounted on the first groove sidewall (1121) or the first groove bottom wall (1125).

11. The electrical box according to claim 9, characterized in that, The first groove sidewall (1121) and the first groove bottomwall (1125) are both inclined to the third direction (Z); the second terminal (300) is installed on the first groove sidewall (1121) or the first groove bottomwall (1125).

12. The electrical box according to claim 5, characterized in that, The first mounting groove (112) has a groove wall including a first groove bottom wall (1125), a first groove side wall (1121), and a fourth groove side wall (1124). The first groove bottom wall (1125) and the side plate body (111) have a height difference along the third direction (Z). The first groove side wall (1121) and the fourth groove side wall (1124) are arranged opposite to each other on both sides of the first groove bottom wall (1125) along the second direction (Y). The first groove side wall (1121) is located between the first groove bottom wall (1125) and the side plate body (111) and connects the first groove bottom wall (1125) and the side plate body (111). The fourth groove side wall (1124) is located between the first groove bottom wall (1125) and the side plate body (111) and connects the first groove bottom wall (1125) and the side plate body (111).

13. The electrical box according to claim 5, characterized in that, The first mounting groove (112) includes a first groove bottom wall (1125) and a first groove side wall (1121). The first groove bottom wall (1125) is inclined to the third direction (Z). The first groove side wall (1121) is disposed between the first groove bottom wall (1125) and the side plate body (111) and connects the first groove bottom wall (1125) and the side plate body (111).

14. The electrical box according to claim 3, characterized in that, The first side plate (110) includes a side plate body (111) and an inclined portion (114) connected to each other, the inclined portion (114) being inclined in the third direction (Z); The first terminal (200) is mounted on the side plate body (111), and the second terminal (300) is mounted on the inclined portion (114).

15. The electrical box according to claim 3, characterized in that, The first side plate (110) has a protrusion (115) protruding in the direction away from the electrical box along the third direction (Z), and the contact area between the first terminal (200) and the first side plate (110) is located on the protrusion (115).

16. The electrical box according to claim 1, characterized in that, The box body (100) includes a fifth side plate (150) connected to the first side plate (110), the fifth side plate (150) being disposed on one side of the first side plate (110) in the second direction (Y); The box body (100) has a second mounting groove (170), the second mounting groove (170) has a slot on the fifth side plate (150), the groove wall of the second mounting groove (170) includes a second groove bottom wall (171) and a fifth groove side wall (172), the second groove bottom wall (171) is connected to the fifth side plate (150); The first side plate (110) includes a side plate body (111), the side plate body (111) and the second groove bottom wall (171) have a height difference in the third direction (Z), and the fifth groove side wall (172) is disposed between the second groove bottom wall (171) and the side plate body (111) and connects the second groove bottom wall (171) and the side plate body (111); In the third direction (Z), the orthographic projection of the side plate body (111) and the orthographic projection of the bottom wall of the second groove (171) partially overlap, the first terminal (200) is installed on the side of the side plate body (111) facing away from the bottom wall of the second groove (171); the second terminal (300) is installed in the second mounting groove (170).

17. The electrical box according to claim 1, characterized in that, In the second direction (Y) intersecting the first direction (X), the orthographic projection of the first terminal (200) overlaps with the orthographic projection of the second terminal (300).

18. The electrical box according to claim 3, characterized in that, The first terminal (200) and the second terminal (300) are an integral structure, and the integral structure is attached to the first side plate (110).

19. The electrical box according to claim 3, characterized in that, The first terminal (200) also has a third sidewall (220) and a first lead (230). The third sidewall (220) is disposed between the two first sidewalls (210) of the first terminal (200). One end of the first lead (230) is connected to the first sidewall (210) or the third sidewall (220), and the other end extends in a direction that avoids the second terminal (300). The second terminal (300) also has a fourth sidewall (320) and a second lead (330), the fourth sidewall (320) being disposed between the two second sidewalls (310) of the second terminal (300), one end of the second lead (330) being connected to the second sidewall (310) or the fourth sidewall (320), and the other end extending in a direction that avoids the first terminal (200).

20. A power conversion device, characterized in that, The power conversion device includes: Electrical box as described in any one of claims 1 to 19; Electrical equipment is connected to the first terminal (200) of the electrical box.

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