Outdoor distribution box
By designing a gap between the outer and inner shells and an inclined heat dissipation groove in the outdoor distribution box, combined with natural convection and active heat dissipation, the problem of heat accumulation inside the distribution box is solved, achieving efficient heat dissipation and dustproof and waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGHE YOUBANG ELECTRONIC EQUIP CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-21
AI Technical Summary
Existing outdoor distribution boxes suffer from internal heat buildup and difficulty in heat dissipation during prolonged use.
An outdoor distribution box was designed, which has a slot and support block inside the outer shell. The inner shell is snapped between the support blocks to form a gap to increase the air contact range. The heat dissipation effect is improved by combining natural convection and active heat dissipation through inclined heat dissipation slots and cooling fans.
It effectively prevents heat buildup, keeps component temperature stable, prevents overheating, enhances heat dissipation, adapts to different environmental needs, and prevents dust and rainwater from entering and affecting heat dissipation.
Smart Images

Figure CN224153789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution boxes, and more particularly to an outdoor distribution box. Background Technology
[0002] Distribution boxes play a crucial role in power systems. They distribute electrical energy efficiently and safely to various devices and areas, ensuring each appliance receives stable and suitable voltage and current. Marking different circuits within the distribution box facilitates monitoring and maintenance of the entire power system by electricians. In case of a fault, it allows for rapid location and resolution of the problem, minimizing power outage time. Distribution boxes effectively isolate live parts, reducing the risk of electric shock. They also provide grounding connections, further enhancing the safety of electrical appliances. Outdoor distribution boxes are essential equipment in power systems for distributing, controlling, and protecting electricity. Typically installed outdoors, they must be waterproof, dustproof, and corrosion-resistant. Outdoor distribution boxes ensure electrical safety, preventing accidents such as electric shock and fires caused by short circuits and leakage. They rationally distribute power, avoiding single-circuit overload and ensuring stable operation of different equipment. Outdoor distribution boxes are not only core equipment for power distribution but also crucial for ensuring electrical safety and improving power supply reliability. Its waterproof, dustproof, and corrosion-resistant properties enable it to adapt to various harsh environments, while intelligent distribution boxes can also improve energy management efficiency. Therefore, in outdoor power systems, selecting a suitable distribution box and maintaining it regularly is crucial.
[0003] The Chinese patent CN222052341 U discloses a dustproof outdoor distribution box that allows dust to be removed from the surface by repeatedly pulling the handle. However, during long-term use, the box accumulates heat and has difficulty dissipating it. Therefore, this paper proposes an outdoor distribution box. Utility Model Content
[0004] The main purpose of this utility model is to provide an outdoor distribution box to solve the problem mentioned in related technologies that heat accumulates inside the distribution box and is not easy to dissipate during long-term use.
[0005] To achieve the above objectives, according to one aspect of the present invention, an outdoor distribution box is provided, comprising an outer shell, a partition groove being formed inside the outer shell, a sunshade being fixedly installed on the upper surface of the outer shell, and a plurality of heat dissipation grooves a being symmetrically formed on the side walls of the outer shell, the groove openings of which are connected to the partition grooves, and a plurality of cover plates being symmetrically and rotatably installed. The box also includes: support blocks, a plurality of support blocks being fixedly installed at the connection points of the partition groove side walls, the side walls of the support blocks having support grooves, the lower surfaces of the support grooves being inclined downwards and outwards from the partition grooves, an inner shell being snapped together between the plurality of support grooves, the side walls of the inner shell having mounting grooves, and a gap being formed between the outer shell and the inner shell by means of the support blocks.
[0006] Furthermore, several heat dissipation grooves b are provided through the side wall of the cover plate, and the openings of the heat dissipation grooves b are rounded.
[0007] Furthermore, several baffles are fixedly installed on the side wall of the cover plate. The baffles are located at the upper end of the heat dissipation groove b and are inclined at 45-50° to the outside and downward of the groove.
[0008] Furthermore, the heat dissipation groove a is inclined at 45-50° to the outside and below of the partition groove, and the inner side wall of the outer shell is symmetrically provided with sliding grooves that connect to the heat dissipation groove a, and the side wall of the outer shell is provided with push grooves that connect to the sliding grooves.
[0009] Furthermore, several support bases are symmetrically fixedly installed on the lower surface of the outer casing, and a heat dissipation hole with a connecting slot is opened through the center of the lower surface of the outer casing, and a cooling fan is rotatably installed in the heat dissipation hole.
[0010] Furthermore, a connecting block is fixedly installed on the upper surface of the outer shell, and the sun visor is fixedly installed on the upper surface of the connecting block. The upper surface of the sun visor has an arc-shaped structure, and the connecting block creates a gap between the sun visor and the upper surface of the outer shell.
[0011] Furthermore, the upper surface of the outer shell has ventilation slots with several interconnected grooves, and the openings of the ventilation slots have oblique angles that slope inwards into the ventilation slots.
[0012] Furthermore, there are two symmetrically arranged cover plates. One of the cover plates has a handle fixedly installed on its side wall near one edge. The side wall of the handle has a mounting screw hole, and a mounting bolt is installed in the internal thread of the mounting screw hole.
[0013] Furthermore, a connecting rod is slidably installed in the sliding groove, and several blades are fixedly installed on the side wall of the connecting rod. The blades are located in the heat dissipation groove a, and the blades are inclined to the outside and downward of the heat dissipation groove a. A push handle is fixedly installed on the upper surface of the connecting rod, and the push handle is slidably engaged in the push groove. A positioning screw hole is opened on the side wall of the push handle, and a positioning bolt is installed in the internal thread of the positioning screw hole.
[0014] Furthermore, a fixing screw hole with a connecting mounting groove is provided through the side wall of the inner shell, and a fixing bolt is installed in the internal thread of the fixing screw hole.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. This outdoor distribution box has an outer casing with a groove inside. Several support blocks are fixedly installed at the connection points of the inner sidewalls of the groove. Support grooves are formed on the sidewalls of the support blocks. An inner casing is snapped together between the support grooves. The sidewall of the inner casing has a mounting groove. Electrical equipment is installed in the mounting groove. When passing through the support blocks, there is a gap between the outer casing and the inner casing to increase the contact area between the casing and the air. At the same time, the cavity formed between the outer casing and the inner casing allows hot air to rise and escape, avoiding heat accumulation and improving heat dissipation. When the outer casing is exposed to direct sunlight, the temperature of the inner casing remains stable, preventing components from overheating. The support grooves are inclined downwards and outwards from the grooves to accommodate inner casings of different sizes. The inclined support grooves also prevent water accumulation within the grooves.
[0017] 2. This outdoor distribution box is equipped with a cover plate. Several heat dissipation grooves (b) are formed on the side wall of the cover plate. The openings of the heat dissipation grooves (b) are rounded. Several baffles are fixedly installed on the side wall of the cover plate, sloping downwards and outwards from the openings of the heat dissipation grooves (b). The rounded corners at the openings of the heat dissipation grooves (b) reduce wind resistance, allowing air to enter the box more easily through the channels, improving natural convection efficiency. Simultaneously, they prevent dust from accumulating on the surface of the heat dissipation grooves (b) and affecting heat dissipation. The baffles block large dust particles, preventing blockage of the heat dissipation grooves (b), and also prevent rainwater from entering the heat dissipation grooves (b). Several heat dissipation grooves (a) symmetrically formed on the side wall of the outer casing, sloping downwards and outwards from the outer casing, further improve natural convection efficiency and prevent dust accumulation. Heat dissipation holes are formed on the lower surface of the outer casing, each fitted with a rotatable cooling fan. The cooling fan draws in cool air, creating active cooling from the bottom. Hot air rises and is exhausted from the top and sides, increasing the cooling effect to suit different environmental needs. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the distribution box in a preferred embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the outer shell structure in a preferred embodiment of the present invention;
[0020] Figure 3 This is a schematic cross-sectional view of the outer shell in a preferred embodiment of the present invention;
[0021] Figure 4 This is a schematic diagram of the cover plate structure in a preferred embodiment of the present invention;
[0022] Figure 5 This is a schematic cross-sectional view of the cover plate in a preferred embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the inner shell structure in a preferred embodiment of the present invention;
[0024] Figure 7This is a schematic diagram of the connecting rod structure in a preferred embodiment of the present invention.
[0025] Figure label:
[0026] 1. Outer shell; 11. Groove; 12. Support block; 13. Heat dissipation groove a; 14. Sunshade; 15. Support base; 16. Heat dissipation hole; 17. Ventilation groove; 18. Sliding groove; 19. Connecting rod; 121. Support groove; 141. Connecting block; 161. Cooling fan; 181. Push groove; 191. Blade; 192. Push handle; 193. Positioning screw hole;
[0027] 2. Cover plate; 21. Heat dissipation groove b; 22. Handle; 211. Baffle; 221. Mounting screw hole;
[0028] 3. Inner shell; 31. Mounting groove; 311. Fixing screw hole. Detailed Implementation
[0029] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0030] This embodiment provides an outdoor distribution box, including an outer shell 1, with a partition groove 11 inside the outer shell 1. A sunshade 14 is fixedly installed on the upper surface of the outer shell 1. Several heat dissipation grooves a13 communicating with the partition groove 11 are symmetrically opened on the side walls of both sides of the outer shell 1. Several cover plates 2 are symmetrically and rotatably installed at the opening of the partition groove 11. The box also includes: support blocks 12, several support blocks 12 are fixedly installed at the connection of the side walls of the partition groove 11. Support grooves 121 are opened on the side walls of the support blocks 12. The lower surface of the support grooves 121 is inclined downwards and outwards from the partition groove 11. An inner shell 3 is snapped and installed between the several support grooves 121. The inclined lower surface of the support grooves 121 facilitates the installation of inner shells 3 of different sizes, while preventing water accumulation in the support grooves 121. The side wall of the inner shell 3 is opened with an installation groove 31. A gap is formed between the outer shell 1 and the inner shell 3 by the support blocks 12. The air gap between the inner and outer layers forms a natural heat insulation layer, which can effectively block the influence of external high temperature on the temperature inside the box. The support block 12 forms a ventilation channel, allowing hot air to flow along the channel path and preventing the accumulation of local hot spots;
[0031] like Figure 1 , Figure 4 , Figure 5 As shown, several heat dissipation grooves b21 are provided through the side wall of the cover plate 2. The opening of the heat dissipation grooves b21 is rounded, which makes it easier for air to enter the box and improves the efficiency of natural convection.
[0032] like Figure 1 , Figure 4 , Figure 5 As shown, several baffles 211 are fixedly installed on the side wall of the cover plate 2. The baffles 211 are located at the upper end of the heat dissipation groove b21. The baffles 211 are inclined at 45-50° to the outside and lower side of the partition groove 11. The baffles 211 block debris, prevent blockage of the heat dissipation groove b21, and prevent rainwater from seeping in, thus significantly improving waterproofness.
[0033] like Figure 3 As shown, the heat dissipation slot a13 is inclined at 45-50° to the outside and below of the partition slot 11. The inner side wall of the outer shell 1 is symmetrically provided with sliding grooves 18 that connect to the heat dissipation slot a13. The side wall of the outer shell 1 is provided with push grooves 181 that connect to the sliding grooves 18. The inclined heat dissipation slot a13 reduces wind resistance, making it easier for air to enter the box through the inclined channel, improving the natural convection efficiency. Dust is not easy to accumulate on the inclined surface, making it easier to clean during maintenance.
[0034] like Figure 3 As shown, several support seats 15 are symmetrically fixedly installed on the lower surface of the outer shell 1. A heat dissipation hole 16 with a connecting slot 11 is opened through the center of the lower surface of the outer shell 1. A cooling fan 161 is rotatably installed in the heat dissipation hole 16. The cooling fan 161 draws in cold air to form active heat dissipation with bottom air intake, so that the cold air dissipates heat in the slot 11 and the mounting slot 31, thereby increasing the heat dissipation effect in the slot 11.
[0035] like Figure 1 , Figure 2 , Figure 3 As shown, a connecting block 141 is fixedly installed on the upper surface of the outer casing 1, and a sunshade 14 is fixedly installed on the upper surface of the connecting block 141. The upper surface of the sunshade 14 has an arc-shaped structure. The connecting block 141 creates a gap between the sunshade 14 and the upper surface of the outer casing 1, thereby creating a ventilation channel between the sunshade 14 and the outer casing 1 to increase air convection and heat dissipation. The sunshade 14 prevents direct sunlight from hitting the outer casing 1, thus reducing the temperature of the outer casing 1. At the same time, the sunshade 14 prevents rainwater from entering the partition groove 11 during rainy weather.
[0036] like Figure 2 , Figure 3 As shown, a number of ventilation slots 17 with connecting partitions 11 are provided through the upper surface of the outer shell 1. The opening of the ventilation slot 17 is provided with an angle that is inclined inward. Hot air in the partition 11 is discharged through the ventilation slot 17. The angle at the opening of the ventilation slot 17 increases the contact range with the air to increase the heat dissipation effect.
[0037] like Figure 1 , Figure 4 , Figure 5As shown, there are two cover plates 2 symmetrically arranged. One of the cover plates 2 has a handle 22 fixedly installed on its side wall near one edge. The side wall of the handle 22 has a mounting screw hole 221. A mounting bolt is installed in the mounting screw hole 221. Tighten the mounting bolt in the mounting screw hole 221, and the mounting screw will press against the surface of the other cover plate 2 to fix the position of the cover plate 2.
[0038] like Figure 3 , Figure 7 As shown, a connecting rod 19 is slidably installed in the sliding groove 18. Several blades 191 are fixedly installed on the side wall of the connecting rod 19. Part of the blades 191 are located in the heat dissipation groove a13. The blades 191 are inclined downwards and outwards from the heat dissipation groove a13. A push handle 192 is fixedly installed on the upper surface of the connecting rod 19. The push handle 192 is slidably engaged in the push groove 181. A positioning screw hole 193 is opened on the side wall of the push handle 192. A positioning bolt is threaded in the positioning screw hole 193. The position of the blades 191 is adjusted by pushing the push handle 192. When the blades 191 are above the heat dissipation groove a13, they block rainwater and debris and prevent rainwater and debris from entering the heat dissipation groove a13. When the blades 191 are below the heat dissipation groove a13, they increase the airflow velocity at the heat dissipation groove a13, thereby increasing the heat dissipation effect. Tightening the positioning bolt in the positioning screw hole 193 tightens the side wall of the outer shell 1 to fix the position of the connecting rod 19.
[0039] like Figure 6 As shown, a fixing screw hole 311 with a connecting mounting groove 31 is provided through the side wall of the inner shell 3. A fixing bolt is installed in the fixing screw hole 311. Tightening the fixing bolt in the fixing screw hole 311 tightens the side wall of the support groove 121 to fix the position of the inner shell 3.
[0040] In practical use, the electrical equipment is installed into the mounting groove 31 of the inner shell 3. The outer shell 1 has a partition groove 11 on its side wall, and several support blocks 12 are fixedly installed at the connection of the partition groove 11's side wall. The side walls of the support blocks 12 have support grooves 121. The inner shell 3 is snapped into place between these support grooves 121. Tightening the fixing bolts in the fixing screw holes 311 tightens the support grooves 121 to fix the position of the inner shell 3. The support blocks 12 create a gap between the outer shell 1 and the inner shell 3, forming a natural heat insulation layer that effectively blocks the influence of external high temperatures on the internal temperature. The support blocks 12 also create a ventilation channel, allowing hot air to flow along the channel path and preventing the accumulation of localized hot spots. Several cover plates 2 are symmetrically and rotatably installed at the opening of the partition 11. Several heat dissipation grooves b21 are opened through the side wall of the cover plate 2. The opening of the heat dissipation groove b21 is rounded. Several baffles 211 are fixedly installed on the side wall of the cover plate 2. The baffles 211 are located above the opening of the heat dissipation groove b21. Air enters the box through the rounded corners of the heat dissipation groove b21, improving the efficiency of natural convection and preventing dust accumulation from affecting heat dissipation. The baffles 211 prevent rainwater and debris from entering the heat dissipation groove b21. Several heat dissipation grooves a are symmetrically opened through the side wall of the outer shell 1, which are connected to the partition 11. 13. The heat dissipation groove a13 is inclined outward from the partition groove 11. The inclined heat dissipation groove a13 increases the heat dissipation effect within the partition groove 11. The inner side wall of the outer shell 1 is symmetrically provided with sliding grooves 18 that communicate with the heat dissipation groove a13. The side wall of the outer shell 1 is provided with push grooves 181 that communicate with the sliding grooves 18. A connecting rod 19 is slidably installed in the sliding grooves 18. Several blades 191 are fixedly installed on the side wall of the connecting rod 19. Part of the blades 191 are located in the heat dissipation groove a13. The blades 191 are inclined downward outward from the heat dissipation groove a13. A push handle 1 is fixedly installed on the upper surface of the connecting rod 19. 92. By pushing the push handle 192 to adjust the position of the blade 191, when the blade 191 is above the heat dissipation groove a13, it blocks rainwater and debris, preventing rainwater and debris from entering the heat dissipation groove a13. When the blade 191 is below the heat dissipation groove a13, it increases the airflow velocity at the heat dissipation groove a13, thereby increasing the heat dissipation effect. Tightening the positioning bolt in the positioning screw hole 193 tightens the side wall of the outer shell 1 to fix the position of the connecting rod 19, while preventing debris from entering the heat dissipation groove a13. A support base 15 is fixedly installed on the lower surface of the outer shell 1. A heat dissipation hole 16 is provided at the center of the surface, and a cooling fan 161 is rotatably installed in the heat dissipation hole 16. Several ventilation slots 17 with connecting partitions 11 are provided on the upper surface of the outer shell 1. The cooling fan 161 draws in cold air to form active heat dissipation with bottom air intake. Under low load, heat dissipation is achieved through natural convection of the heat dissipation slots a13 and the heat dissipation hole 16. Under high load, the cooling fan 161 is activated to enhance heat dissipation and prevent overheating. A sunshade 14 is fixedly installed on the upper surface of the outer shell 1 to prevent direct sunlight from hitting the outer shell 1 and reduce the temperature inside the outer shell 1.
[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. An outdoor distribution box comprising an outer housing (1), characterized in that, The outer shell (1) has a partition groove (11) inside, a sunshade plate (14) is fixedly installed on the upper surface of the outer shell (1), and several heat dissipation grooves a (13) communicating with the partition groove (11) are symmetrically opened on the side walls of both sides of the outer shell (1). Several cover plates (2) are symmetrically rotated and installed at the opening of the partition groove (11), and the shell also includes: Support blocks (12) are fixedly installed at the connection of the side wall of the partition groove (11). The side wall of the support block (12) is provided with a support groove (121). The lower surface of the support groove (121) is inclined to the outside and below of the partition groove (11). The inner shell (3) is snapped together between the support grooves (121). The side wall of the inner shell (3) is provided with an installation groove (31). The support blocks (12) form a gap between the outer shell (1) and the inner shell (3).
2. The outdoor electrical distribution box of claim 1, wherein, The cover plate (2) has several heat dissipation grooves b (21) through the side wall, and the opening of the heat dissipation grooves b (21) has rounded corners.
3. The outdoor electrical distribution box of claim 1, wherein, The cover plate (2) has several baffles (211) fixedly installed on its side wall. The baffles (211) are located at the upper end of the heat dissipation groove b (21) and are inclined at 45-50° to the outside and below of the partition groove (11).
4. The outdoor electrical distribution box of claim 1, wherein, The heat dissipation groove a (13) is inclined at 45-50° to the outside and below of the partition groove (11). The inner side wall of the outer shell (1) is symmetrically provided with sliding grooves (18) that connect to the heat dissipation groove a (13), and the side wall of the outer shell (1) is provided with push grooves (181) that connect to the sliding grooves (18).
5. The outdoor electrical distribution box of claim 1, wherein, A number of support seats (15) are symmetrically fixedly installed on the lower surface of the outer shell (1). A heat dissipation hole (16) with a connecting slot (11) is opened through the center of the lower surface of the outer shell (1). A cooling fan (161) is rotatably installed in the heat dissipation hole (16).
6. The outdoor distribution box according to claim 1, characterized in that, A connecting block (141) is fixedly installed on the upper surface of the outer shell (1), and a sunshade (14) is fixedly installed on the upper surface of the connecting block (141). The upper surface of the sunshade (14) has an arc-shaped structure, and the connecting block (141) creates a gap between the sunshade (14) and the upper surface of the outer shell (1).
7. The outdoor electrical distribution box of claim 1, wherein, The upper surface of the outer shell (1) is provided with a ventilation slot (17) through which several connecting slots (11) are opened, and the opening of the ventilation slot (17) is provided with an oblique angle that is inclined inward into the ventilation slot (17).
8. The outdoor electrical distribution box of claim 2, wherein, Two cover plates (2) are symmetrically arranged. One of the cover plates (2) has a handle (22) fixedly installed on one side edge. The handle (22) has a mounting screw hole (221) on its side wall, and a mounting bolt is installed in the mounting screw hole (221) with internal thread.
9. The outdoor electrical distribution box of claim 4, wherein, A connecting rod (19) is slidably installed in the sliding groove (18). Several blades (191) are fixedly installed on the side wall of the connecting rod (19). The blades (191) are partially located in the heat dissipation groove a (13). The blades (191) are inclined to the outside and below the heat dissipation groove a (13). A push handle (192) is fixedly installed on the upper surface of the connecting rod (19). The push handle (192) is slidably engaged in the push groove (181). A positioning screw hole (193) is opened on the side wall of the push handle (192). A positioning bolt is threaded in the positioning screw hole (193).
10. The outdoor electrical distribution box of claim 1, wherein, The inner housing (3) side wall is provided with a fixed screw hole (311) with a communication installation groove (31), and a fixed bolt is screwed in the fixed screw hole (311).
Citation Information
Patent Citations
Dustproof outdoor distribution box
CN222052341U