Control box body

Abstract

The utility model relates to a control box body, the control box body is made of an electric insulation material, the control box body comprises a box body and a cover body, one end of the box body is provided with an opening, the cover body covers the opening, an electric control space is defined between the cover body and the box body, and one side, far away from the electric control space, of the cover body protrudes outwards in an arc shape; a first reinforcing rib structure is arranged on the side, facing the electric control space, of the cover body. Therefore, the control box body provided by the utility model adopts an all-insulating material structural design, has no electric shock risk, meets the reinforced insulation requirement, and is high in safety level. And double reinforcing protection of the cambered surface structure and the first reinforcing rib structure on the cover body is formed, so that the structural strength is improved.

Description

Technical Field

[0001] The present application relates to the technical field of control boxes, and in particular to control boxes. Background Art

[0002] A multi-energy power generation system refers to a new energy system concept formed by coupling multiple energy systems such as cold, heat, electricity, and gas in the links of energy production, transmission, and use. The multi-energy system makes full use of the mutual assistance and complementarity of different forms of energy to improve the system's economy, enhance system flexibility, increase system reliability, and tap system complementarity.

[0003] The existing multi-energy power generation system is usually composed of traditional thermal power generation and new energy power generation, and a control box is set up outdoors to assemble the electric control components in the control box to control the entire power generation system. The control box is generally a metal shell, which is prone to corrosion and rust and easily creates a safety hazard of electric shock. In order to solve the above problems, an electrical insulating material made of special plastic can be used as the shell of the control box to improve safety and durability.

[0004] However, after the control box is replaced with an electrically insulating material, the structural strength is weak and cannot meet requirements such as service life. Utility Model Content

[0005] Based on this, the present application proposes a control box to address the problem of weak structural strength of the control box, which can effectively improve the structural strength.

[0006] The present application provides a control box, comprising:

[0007] A box body having an opening at one end;

[0008] A cover body, which is arranged to cover the opening, and the cover body and the box body enclose an electric control space;

[0009] The side of the cover body away from the electric control space is arc-shaped and convex, and the side of the cover body facing the electric control space has a first reinforcing rib structure, and the control box body is made of electrically insulating material.

[0010] In some embodiments, the first reinforcement rib structure includes at least a first sub-reinforcement rib structure in a honeycomb shape.

[0011] In some embodiments, the first reinforcing rib structure further includes a second sub-reinforcing rib structure, and the second sub-reinforcing rib structure is annularly arranged outside the first sub-reinforcing rib structure and connected to the first sub-reinforcing rib structure.

[0012] In some embodiments, the second sub-reinforcement rib structure includes a first reinforcement frame, a second reinforcement frame and a plurality of ribs, the first sub-reinforcement rib structure is arranged in the first reinforcement frame, the first reinforcement frame is arranged at intervals in the second reinforcement frame, and the plurality of ribs are arranged between the first reinforcement frame and the second reinforcement frame and are arranged around the first reinforcement frame.

[0013] In some embodiments, the thickness of the box body and / or the cover body ranges from 1.5 mm to 6 mm.

[0014] In some embodiments, the electrical insulation material used in the control box has a density range of 1000kg / m³-1400kg / m³.

[0015] In some embodiments, the electrically insulating material includes at least one of PC plastic, or a polymer material.

[0016] In some embodiments, the arc length of a side surface of the cover body away from the electric control space ranges from 350 mm to 500 mm, and the radius ranges from 1200 mm to 1800 mm.

[0017] In some embodiments, the arc length of a side surface of the cover body away from the electric control space is 400 mm and the radius is 1500 mm.

[0018] In some embodiments, the cover body includes a panel and a first side panel, and a side of the panel opposite to the opening and away from the electric control space is arc-shaped and convex;

[0019] The first side plate is disposed around the edge of the panel and covers at least a portion of the box body.

[0020] In some embodiments, the box body includes a bottom plate opposite to the opening, and a side of the bottom plate facing away from the electric control space has a second reinforcing rib structure.

[0021] In some embodiments, the second reinforcing rib structure is honeycomb-shaped.

[0022] In some embodiments, the cover has a mating portion, and the control box includes a locking member;

[0023] The locking member is arranged on the box body and can cooperate with the matching portion to lock the cover body and the box body.

[0024] In some embodiments, the box body includes a bottom plate and a second side plate, the bottom plate is directly opposite to the opening, and the second side plate is arranged around the edge of the bottom plate;

[0025] The box body has a breathing hole and a wiring hole, the breathing hole is arranged on the bottom plate, and the wiring hole is arranged on the second side plate.

[0026] In some embodiments, the cover body is formed by integral injection molding.

[0027] In some embodiments, the electrical control space is suitable for accommodating electrical control components, and the electrical control components include: at least one of a circuit breaker, a contactor, a controller, a busbar device, a data acquisition device, and a communication device.

[0028] The control box body is doubly reinforced by the cover body protruding outward in an arc shape and a first reinforcing rib structure being arranged on the side facing the electric control space inside the box body, thereby improving the structural strength of the electrically insulating control box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0030] Figure 1 A schematic diagram of a first-angle planar structure of a control box provided in accordance with one or more embodiments of the present application;

[0031] Figure 2 for Figure 1 The second angle plane structure diagram of the control box provided in;

[0032] Figure 3 for Figure 1 The schematic diagram of the three-dimensional structure of the control box provided in;

[0033] Figure 4 for Figure 1 The third angle structural diagram of the control box provided in;

[0034] Figure 5 for Figure 1 A schematic diagram of the three-dimensional structure of the control box body provided in the state where the cover of the control box body is opened;

[0035] Figure 6 for Figure 1 A schematic diagram of the planar structure of the control box body provided in the state where the cover of the control box body is opened;

[0036] Figure 7 for Figure 5 A partial enlarged view of

[0037] Figure 8 for Figure 1 A schematic diagram of the planar structure of the cover of the control box provided in;

[0038] Fig. 9 for Figure 1 A schematic diagram of the planar structure of the bottom plate of the control box provided in;

[0039] Fig.10 for Figure 1 The schematic diagram of the planar structure of the control box body provided in the figure is when the cover of the control box body is opened.

[0040] 100, control box body; 10, box body; 11, bottom plate; 111, second reinforcing rib structure; 12, second side plate; 13, breathing hole; 14, wiring hole; 15, first rotating part; 16, opening; 17, first sealing matching part; 20, cover body; 21, panel; 211, first reinforcing rib structure; 211a, first sub-reinforcing rib structure; 211b, second sub-reinforcing rib structure; 211b1, first reinforcing frame; 211b2, second reinforcing frame; 211b3, ribs; 22, first side plate; 23, matching part; 24, second rotating part; 25, second sealing matching part; 30, electric control space; 40, locking piece; 41, locking part; 42, operating part. DETAILED DESCRIPTION

[0041] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0044] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, and / or B can represent: A exists alone, and B exists at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0046] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0047] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] As described in the background technology, in a multi-energy power generation system, a control box needs to be configured outdoors to supply power and communicate with the electrical components of the entire system. However, the existing control box is generally a metal shell. When metal is placed outdoors for a long time, it is easy to be corroded by air or rain, thereby rusting and being damaged. In addition, metal has conductive properties, and when placed outdoors, it is easy to cause safety hazards such as electric shock.

[0050] In order to alleviate the problem that the metal shell is easily corroded and rusted and poses a safety hazard, the applicant has discovered that the metal shell can be replaced with a shell made of an electrically insulating material such as plastic. The electrically insulating material has a small dielectric constant and a strong ability to block the electric field, and is not prone to leakage. In addition, electrically insulating materials such as plastic have stable performance and are not easily corroded and damaged, thereby extending the service life of the control box.

[0051] However, compared with metal materials, electrical insulating materials such as plastics have lower material hardness. If the material of the control box is directly replaced to form a new shell, the overall strength of the control box will be lower, which will still affect the service life and usage intensity.

[0052] In order to solve the above problems, the present application provides a control box 100, which is made of an electrically insulating material. Figures 1 to 6 The control box 100 includes a box body 10 and a cover body 20. The box body 10 has an opening 16 at one end. The cover body 20 covers the opening 16, and an electric control space 30 is enclosed between the cover body 20 and the box body 10. The side of the cover body 20 away from the electric control space 30 is arc-shaped and convex, and the side of the cover body 20 facing the electric control space 30 has a first reinforcing rib structure 211.

[0053] In some embodiments, the box body 10 is a hollow structure with an opening 16 at one end, and the space inside the box body 10 is connected to the outside through the opening 16. The cover body 20 covers the opening 16 of the box body 10, so that after the cover body 20 covers the box body 10, the cover body 20 seals the internal space of the box body 10 and encloses it to form an electric control space 30. The cover body 20 can be a plate-like structure. Of course, the control box body 100 formed by the box body 10 and the cover body 20 can be in a variety of shapes, such as a cylinder, a rectangular parallelepiped, etc. In order to facilitate the mounting of the control box body 100 on an external building, generally, the control box body 100 is set as a rectangular parallelepiped, and the box body 10 is fixed to the building to achieve the overall installation of the control box body 100.

[0054] Electrical insulating materials refer to materials that can prevent the passage of electric current and thus produce insulating functions, including but not limited to plastics (such as polyvinyl chloride PVC, polyethylene PE, polypropylene PP, polycarbonate PC, etc.), insulating plastics) rubbers (such as silicone rubber), resins, polymer materials (such as glass fiber reinforced plastics (FRP), paper composite insulating materials, etc., polymer materials formed by at least two of the above), etc.

[0055] In the prior art, a box body made of a metal shell needs to have a grounding wire connected to the metal shell for electric shock protection, but there is a risk of the grounding wire getting loose. Therefore, as described above, the present application uses a control box body made of an electrically insulating material, which is insulated and non-conductive, does not require additional grounding wires, and has no risk of getting loose, thus having a higher safety factor.

[0056] Furthermore, the electrical insulating material has good resistance to electrical breakdown, aging and chemical corrosion. However, the mass density of the electrical insulating material is relatively small, and the material hardness is weaker than that of metal. Therefore, in order to improve the electrical insulation performance and corrosion resistance of the control box 100, it is also necessary to consider increasing the strength of the control box 100.

[0057] In order to increase the structural strength, the cover 20 is provided with an arc-shaped convexity on the side away from the electric control space 30, that is, a curved surface structure convex to the side away from the box body 10 is formed on the cover 20. Through simulation and test results, it can be known that the curved surface structure has higher strength than the flat structure. In addition, a first reinforcing rib structure 211 is further provided on the side of the cover 20 facing the electric control space 30, which can not only ensure the flatness and aesthetics of the outer surface of the control box 100, but also the first reinforcing rib structure 211 can double enhance the structural strength of the cover 20, thereby forming a double reinforcement with the setting of the arc-shaped convexity, and improving the structural strength of the control box 100.

[0058] It should be noted that the first reinforcing rib structure 211 may include a plurality of reinforcing ribs protruding from the bottom plate 11, and the specific thickness, specific arrangement density and specific arrangement shape of the reinforcing ribs may be adaptively set according to actual conditions. It can be understood that the denser the arrangement and the thicker the thickness, the higher the structural strength.

[0059] Thus, the control box 100 provided by the present application adopts a fully insulating material structure design, and the control box 100 has no risk of electric shock, meets the requirements of reinforced insulation, and has a high safety level. In addition, the arc surface structure on the cover 20 and the first reinforcing rib structure 211 form a double reinforcement protection to improve the structural strength.

[0060] In one embodiment, the electric control space 30 enclosed between the cover body 20 and the box body 10 is suitable for accommodating electric control components, which include: at least one of: a circuit breaker, a contactor, a controller, a busbar device, a data acquisition device, and a communication device.

[0061] In actual engineering applications, suitable electronic control components can be selected so that the control box 100 can be used as a photovoltaic junction box, or a power distribution control box, or an off-grid control box, etc., so as to meet different usage requirements. The specific number and type of electronic control components are not specifically limited in this application.

[0062] In one embodiment, see Figures 5 to 10 The cover body 20 includes a panel 21 and a first side panel 22 . The first side panel 22 is disposed around the edge of the panel 21 and protrudes toward one side. The panel 21 is convex in an arc shape on a side opposite to the opening 16 and away from the electric control space 30 .

[0063] The box body 10 includes a bottom plate 11 and a second side plate 12. The second side plate 12 is arranged around the edge of the bottom plate 11 and protrudes toward one side. The side of the second side plate 12 away from the bottom plate 11 is enclosed to form an opening 16. The cover body 20 is covered on the box body 10, so that the bottom plate 11 and the panel 21 are opposite, the first side plate 22 and the second side plate 12 are abutted, or the first side plate 22 covers at least part of the second side plate 12 of the box body 10, so as to ensure the sealing of the electric control space 30.

[0064] In one embodiment, see Figures 5 to 7 The first reinforcing rib structure 211 at least includes a honeycomb-shaped first sub-reinforcing rib structure 211a. The honeycomb-shaped first sub-reinforcing rib structure 211a indicates that all the reinforcing ribs are connected end to end and are enclosed on the side of the cover body 20 facing the box body 10 to form a plurality of connected hexagonal structures. The honeycomb-shaped first sub-reinforcing rib structure 211a can reduce the shrinkage stress of the cover body 20 during molding, and the effective cross-section of the honeycomb-shaped first sub-reinforcing rib structure 211a is greatly increased compared to the reinforcing ribs connected horizontally and vertically, thereby greatly improving the strength of the first reinforcing rib structure 211.

[0065] The specific laying area of ​​the first sub-reinforcement rib structure 211a can be the entire panel 21, or it can be distributed in different areas of the panel 21 according to other settings.

[0066] Specifically, in one embodiment, see Figure 5 and Figure 7 The first reinforcing rib structure 211 further includes a second sub-reinforcing rib structure 211b. The second sub-reinforcing rib structure 211b is annularly arranged outside the first sub-reinforcing rib structure 211a and connected to the first sub-reinforcing rib structure 211a.

[0067] That is, at this time, one side of the panel 21 forms an overall structural layout of the first reinforcing rib structure 211 with the first sub-reinforcing rib structure 211a at the center and the second sub-reinforcing rib structure 211b at the periphery.

[0068] Furthermore, the box body 10 has a first sealing fitting portion 17 facing the side of the cover body 20, and the cover body 20 has a second sealing fitting portion 25 arranged on the outer periphery of the second sub-reinforcement rib structure 211b. A sealing ring structure may be provided in the second sealing fitting portion 25. When the cover body 20 needs to be covered on the box body 10, the first sealing fitting portion 17 is pressed into the sealing ring structure in the second sealing fitting portion 25, thereby causing a larger pressing force on the edge of the cover body 20.

[0069] In order to prevent the edge of the cover body 20 from being deformed by force when the first sealing fitting portion 17 and the second sealing fitting portion 25 are press-fitted, a second sub-reinforcement rib structure 211b is provided around the periphery of the first sub-reinforcement rib structure 211a to enhance the edge strength, thereby preventing the cover body 20 from being deformed.

[0070] Further, see Figure 7 The second sub-reinforcement rib structure 211b includes a first reinforcement frame 211b1, a second reinforcement frame 211b2 and a plurality of ribs 211b3. The first sub-reinforcement rib structure 211a is arranged in the first reinforcement frame 211b1. The first reinforcement frame 211b1 is arranged at intervals in the second reinforcement frame 211b2. The plurality of ribs 211b3 are arranged between the first reinforcement frame 211b1 and the second reinforcement frame 211b2 and are arranged around the first reinforcement frame 211b1.

[0071] The second reinforcement frame 211b2, the ribs 211b3, the first reinforcement frame 211b1 and the first sub-reinforcement rib structure 211a are sequentially arranged, and the second reinforcement frame 211b2 is located at the outermost side of the panel 21, that is, the position closest to the first side panel 22. The ribs 211b3 can be arranged in parallel or intersecting with each other in the annular area formed between the first reinforcement frame 211b1 and the second reinforcement frame 211b2, and form a plurality of parallelogram closed areas or triangular closed areas to enhance the structural strength.

[0072] It can be understood that if the structural strength of the second sub-reinforcement rib structure 211b needs to be stronger than the structural strength of the first sub-reinforcement rib structure 211a, the area of ​​each closed area (i.e., the parallelogram closed area or the triangular closed area mentioned above) formed between the rib 211b3 and the first reinforcement frame 211b1 and the second reinforcement frame 211b2 can be set to be larger than the area of ​​each hexagon of the honeycomb structure.

[0073] In one embodiment, see Figure 5 and Fig. 9 The box body 10 includes a bottom plate 11 opposite to the opening 16 , and a side of the bottom plate 11 facing away from the electric control space 30 has a second reinforcing rib structure 111 .

[0074] In order to facilitate the removal of the cover 20 from the side of the opening 16 later and realize the maintenance and replacement of the components in the internal electric control space 30, the bottom plate 11 of the box body 10 is generally placed facing the building when the control box body 100 is assembled. Therefore, during or after installation, the bottom plate 11 of the box body 10 may be subjected to external force. Therefore, a second reinforcing rib structure 111 is arranged on the side of the bottom plate 11 away from the installation space to enhance the strength of the bottom plate 11.

[0075] The second reinforcing rib structure 111 may include a plurality of reinforcing ribs protruding from the bottom plate 11, and the specific thickness, specific arrangement density and specific arrangement shape of the reinforcing ribs may be adaptively set according to actual conditions. It can be understood that the denser the arrangement and the thicker the thickness, the higher the structural strength.

[0076] Furthermore, the second reinforcing rib structure 111 is honeycomb-shaped. For details on the configuration of the honeycomb structure to enhance the structure, please refer to the description of the first reinforcing rib structure 211 above, which will not be repeated here. The specific paving area of ​​the second sub-reinforcing rib structure 211b can be the entire bottom plate 11, or it can be distributed in different areas of the bottom plate 11 according to other configurations.

[0077] In one embodiment, see Figure 5 The box body 10 has a breathing hole 13 and a wiring hole 14. The box body 10 includes a bottom plate 11 and a second side plate 12 (for the arrangement of the bottom plate 11 and the second side plate 12, see above). The breathing hole 13 is arranged on the bottom plate 11, and the wiring hole 14 is arranged on the second side plate 12.

[0078] Specifically, since the control box 100 is sealed and the inside and outside are connected, the air temperature inside the control box 100 is higher or lower than the outside temperature. According to the thermal expansion and contraction of the gas, it will cause an air pressure difference between the inside and outside of the control box 100, causing the cover body 20 to deform. Therefore, the setting of the breathing hole 13 will allow the gas on the side with higher pressure to pass through and enter the other side, thereby reducing the pressure difference between the inside and outside and ensuring the pressure stability in the electric control space 30.

[0079] The design of the breathing hole 13 needs to consider multiple factors, such as the size of the box, the use environment, the climatic conditions, etc. Generally speaking, the size and position of the breathing hole 13 need to be reasonably designed according to the actual situation to ensure that it can play a role effectively.

[0080] The wiring hole 14 can conveniently guide and control the in and out of the line, thereby ensuring that the internal lines of the control box 100 can be correctly and safely connected and arranged. The design of the wiring hole 14 needs to consider multiple factors, such as the size of the control box 100, the use environment, the line type, etc. In general, the size and position of the wiring hole 14 need to be reasonably designed according to the actual situation to ensure that it can play an effective role.

[0081] In addition, the wiring hole 14 also needs to have a certain sealing performance to prevent dust, water vapor and other impurities from entering the control box 100. At the same time, the wiring hole 14 also needs to have a certain anti-aging performance to adapt to long-term use and environmental changes.

[0082] The wiring hole 14 is arranged on the second side plate 12, and the breathing port is arranged on the bottom plate 11, so as to realize the partition of the wiring and breathing functions and avoid the space occupation between the breathing port and the wiring hole 14 affecting the specific layout.

[0083] Furthermore, if a larger breathing hole 13 is needed, it can be set at the center of the bottom plate 11, and if more wiring holes 14 are needed, they can be set at different positions of the second side plate 12. Thus, the position settings of the breathing holes 13 and the wiring holes 14 are clearer and more flexible, which facilitates use and maintenance.

[0084] In one embodiment, the thickness of the box body 10 and / or the cover body 20 ranges from 1.5 mm to 6 mm, so that the thickness of the box body 10 and / or the cover body 20 can be selected according to specific needs to meet different design requirements and usage scenarios.

[0085] Moreover, this thickness range can ensure the strength and stability of the box body 10 and / or the cover body 20, and also ensure its portability. During the production process, a suitable thickness can be selected according to specific design requirements and usage scenarios to achieve a better use effect. Optionally, the thickness of the box body 10 and / or the cover body 20 can be 3.5 mm. Under this thickness, the use effect of the control box 100 is better.

[0086] In one embodiment, the density of the electrical insulation material used in the control box 100 is in the range of 1000 kg / m³-1400 kg / m³.

[0087] Specifically, limiting the above density range means that the electrical insulation material has a relatively suitable density, which can provide better electrical insulation performance and strength while ensuring its lightness. When manufacturing the control box 100, using the electrical insulation material with a density within this range can ensure the stability and durability of the control box 100, and can also improve its electrical performance and safety.

[0088] It should be noted that the density of electrical insulation materials is related to their performance and quality, so it is necessary to ensure that they meet relevant standards and requirements when used. In addition, when selecting electrical insulation materials, other performance parameters such as heat resistance, corrosion resistance, aging resistance, etc. need to be considered to ensure their reliability and stability in practical applications.

[0089] Optionally, the density of the electrical insulation material used in the control box 100 is about 1200 kg / m³, that is, the density can be 1200 kg / m³, or 1200 kg / m³±a smaller deviation value kg / m³. The control box 100 formed with a density of about 1200 kg / m³ has better electrical insulation performance, strength and lightness. It can be understood that at this density, the specific material type of the electrical insulation material is not limited.

[0090] In one embodiment, the arc length of the surface of the cover body 20 away from the electric control space 30 is in the range of 350 mm to 500 mm, and the radius is in the range of 1200 mm to 1800 mm.

[0091] According to the above records, the cover body 20 has a certain thickness. Therefore, during processing, the cover body 20 is processed based on the surface of the side of the cover body 20 away from the electric control space 30, and the bending arc and arc length of the cover body 20 are limited. On the one hand, it is easy to process, and on the other hand, it is avoided that the bending arc is too large and reversely affects the structural strength of the panel 21.

[0092] It is understandable that the arc length and radius range can also be adjusted according to specific design requirements and usage scenarios to meet different needs. Optionally, the arc length of the surface of the side of the cover 20 away from the electric control space 30 is 400mm and the radius is 1500mm. The arc length and radius values ​​can have both strength and processing convenience, and can also meet the needs of some specific application scenarios. In other embodiments, a suitable range value can also be selected according to the size of the control box 100. If a cover 20 with a larger surface area is required, a larger arc length can be selected; if a cover 20 with a smaller surface area is required, a smaller arc length can be selected.

[0093] In one embodiment, the cover 20 is provided by injection molding, which can provide better durability and stability, and can also improve production efficiency. Through injection molding, each part of the cover 20 (the panel 21, the first side panel 22 and the first reinforcing rib structure 211) can be manufactured at one time, avoiding problems caused by processes such as assembly and welding. In addition, injection molding can also provide better appearance quality and dimensional accuracy, making the cover 20 more beautiful and practical.

[0094] In one embodiment, the cover 20 and the box body 10 are movably connected. Specifically, the cover 20 can be directly and integrally connected to the box body 10 in a detachable manner, so that the cover 20 can be removed from the box body 10 as a whole to facilitate maintenance of the interior of the electric control space 30. One side of the cover 20 can also be rotatably connected to the box body 10. Specifically, refer to Figure 5 and Fig.10 A first rotating portion 15 is provided on one side of the box body 10, and the cover body 20 is rotatably connected to the box body 10 via the first rotating portion 15, so that the cover body 20 can be rotated to cover the opening 16 or open the opening 16 to meet different usage requirements.

[0095] Furthermore, the box body 10 is provided with a second rotating part 24 that is rotatably matched with the first rotating part 15. One of the two can be a protrusion and the other has a groove. The first rotating part 15 and the second rotating part 24 are plugged into each other and are rotatably connected around the plugging direction.

[0096] In one embodiment, see Figure 5 , Figure 8 and Fig.10The cover body 20 has a mating portion 23, and the control box body 100 includes a locking member 40, which is provided on the box body 10 and can cooperate with the mating portion 23 to lock the cover body 20 and the box body 10, so that when the cover body 20 is rotated to cover the box body 10, the cover body 20 and the box body 10 are fixed by the cooperation of the locking member 40 and the mating portion 23.

[0097] Further, see Figure 5 , Figure 8 and Fig.10 The locking member 40 is located at a side of the box body 10 where the opening 16 is provided, and has a locking portion 41 protruding relative to the opening 16 . The locking portion 41 can at least partially engage with the matching portion 23 , thereby fixing the box body 10 and the cover body 20 .

[0098] It can be understood that when the opening 16 needs to be opened, it is only necessary to operate to separate the locking portion 41 from the matching portion 23. The specific locking method and unlocking method are not limited in this application.

[0099] In a specific embodiment, the mating portion 23 has a locking surface facing away from the box body 10, and the locking member 40 also includes an operating portion 42, which is rotatably connected to the box body 10, one end of the locking portion 41 is rotatably connected to the operating portion 42, and the other end forms a locking protrusion, which is used to cooperate with the locking surface in a limiting manner.

[0100] When the locking protrusion and the locking surface are in limited cooperation, the user can lift the side of the operating part 42 away from the locking part 41 to move it away from the box body 10. The operating part 42 rotates relative to the box body 10, and the locking part 41 is driven by the operating part 42 to rotate and displace, and the locking protrusion is disengaged from the locking surface, completing the unlocking.

[0101] Similarly, in the unlocked state, the user can press the side of the operating part 42 away from the locking part 41 to move it toward the side close to the box body 10. The operating part 42 rotates relative to the box body 10, and the locking part 41 is driven by the operating part 42 to rotate and displace, and the locking protrusion approaches and gradually abuts against the locking surface to complete the locking.

[0102] The control box 100 provided in the present application adopts a fully insulating material structure design, and the control box 100 has no risk of electric shock, meets the requirements of reinforced insulation, and has a high safety level. The cover 20 is arc-shaped and convex, and the first reinforcing rib structure 211 has double reinforcement protection to improve the structural strength.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A control box, characterized in that: include: A box body having an opening at one end; A cover body, which is arranged to cover the opening, and the cover body and the box body enclose an electric control space; The side of the cover body away from the electric control space is arc-shaped and convex, and the side of the cover body facing the electric control space has a first reinforcing rib structure, and the control box body is made of electrically insulating material.

2. The control box according to claim 1, characterized in that: The first reinforcing rib structure at least includes a first sub-reinforcing rib structure in a honeycomb shape.

3. The control box according to claim 2, characterized in that: The first reinforcing rib structure also includes a second sub-reinforcing rib structure, which is annularly arranged on the outside of the first sub-reinforcing rib structure and connected to the first sub-reinforcing rib structure.

4. The control box according to claim 3, characterized in that: The second sub-reinforcement rib structure includes a first reinforcement frame, a second reinforcement frame and a plurality of ribs. The first sub-reinforcement rib structure is arranged in the first reinforcement frame. The first reinforcement frame is arranged in the second reinforcement frame at intervals. The plurality of ribs are arranged between the first reinforcement frame and the second reinforcement frame and are arranged around the first reinforcement frame.

5. The control box according to any one of claims 1 to 4, characterized in that: The thickness of the box body and / or the cover body ranges from 1.5 mm to 6 mm.

6. The control box according to any one of claims 1 to 4, characterized in that: The density range of the electrical insulating material used in the control box is 1000kg / m³-1400kg / m³.

7. The control box according to any one of claims 1 to 4, characterized in that: The electrical insulating material includes at least one of PC plastic or polymer material.

8. The control box according to any one of claims 1 to 4, characterized in that: The arc length of the surface of one side of the cover body away from the electric control space ranges from 350mm to 500mm, and the radius ranges from 1200mm to 1800mm.

9. The control box according to claim 8, characterized in that: The arc length of the surface of one side of the cover body away from the electric control space is 400 mm, and the radius is 1500 mm.

10. The control box according to claim 1, characterized in that: The cover body comprises a panel and a first side panel, and a side of the panel opposite to the opening and away from the electric control space is arc-shaped and convex; The first side plate is disposed around the edge of the panel and covers at least a portion of the box body.

11. The control box according to claim 1, characterized in that: The box body comprises a bottom plate opposite to the opening, and a side of the bottom plate facing away from the electric control space has a second reinforcing rib structure.

12. The control box according to claim 11, characterized in that: The second reinforcing rib structure is honeycomb-shaped.

13. The control box according to claim 1, characterized in that: The cover body has a matching portion, and the control box body includes a locking member; The locking member is arranged on the box body and can cooperate with the matching portion to lock the cover body and the box body.

14. The control box according to claim 1, characterized in that: The box body comprises a bottom plate and a second side plate, the bottom plate is directly opposite to the opening, and the second side plate is arranged around the edge of the bottom plate; The box body has a breathing hole and a wiring hole, the breathing hole is arranged on the bottom plate, and the wiring hole is arranged on the second side plate.

15. The control box according to claim 1, characterized in that: The cover body is integrally formed by injection molding.

16. The control box according to claim 1, characterized in that: The electric control space is suitable for accommodating electric control components, and the electric control components include: at least one of a circuit breaker, a contactor, a controller, a current collector, a data acquisition device, and a communication device.

Images