Protective structure of distribution box

Abstract

This utility model belongs to the field of electrical equipment protection technology, specifically referring to a protective structure for a distribution box, comprising: a mounting plate, disposed on the box wall, with an outwardly extending rainproof eave at the top of the mounting plate, and a ventilation opening communicating with the interior of the box; a rain shield, connected to the mounting plate via a rotating connection mechanism, and capable of rotating under wind pressure to seal or open the ventilation opening, with a guide structure on the windward side of the rain shield for guiding wind and rain to both sides; and a drainage component, including a water guiding part on the rain shield and a drainage part on the mounting plate. When the rain shield rotates under wind pressure to the position of sealing the ventilation opening, the water guiding part discharges the seeping liquid to the outside of the box; when the rain shield rotates to the open position, the drainage part discharges the liquid introduced through the water guiding part to the outside of the box. This utility model improves the balance between ventilation and waterproofing of the distribution box through the cooperation of the mounting plate with rainproof eave and ventilation opening, the rain shield with guide structure, and the drainage component.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment protection technology, and specifically refers to a protective structure for a distribution box. Background Technology

[0002] Distribution boxes are widely used in industrial production, construction projects, municipal facilities, and residential buildings. Their core purpose is to centrally install electrical components such as switches, circuit breakers, and relays. Through orderly wiring, they achieve the distribution, control, and protection of circuits, while providing physical protection space for internal electrical components to prevent damage from external objects or impacts, ensuring the stable operation of the circuit system and maintaining the normal operation of various electrical equipment.

[0003] In existing technologies, to prevent the internal electrical components from accumulating heat and affecting performance due to long-term operation, distribution boxes typically have ventilation openings in their walls for heat dissipation. However, this design struggles to meet the protection requirements under harsh weather conditions such as rain and wind. For example, during rain or strong winds, external rainwater can easily seep directly into the box through the ventilation openings. Even with simple shielding structures at the ventilation openings, some distribution boxes cannot effectively prevent the intrusion of rainwater from angled directions or strong winds. The infiltrated rainwater can come into contact with internal electrical components, potentially causing short circuits and malfunctions, accelerating corrosion, shortening equipment lifespan, and in severe cases, even leading to electrical safety accidents. This creates a technical contradiction: "ensuring ventilation and heat dissipation makes it prone to water ingress, while strengthening waterproofing affects heat dissipation." Therefore, there is an urgent need for a protective structure that can effectively prevent rain and wind intrusion while ensuring the ventilation and heat dissipation requirements of the distribution box. Utility Model Content

[0004] This utility model solves the problems mentioned in the background art by setting up an installation plate with a rainproof eave and a ventilation opening, a rain shield driven by wind pressure and with a flow guiding structure, and a drainage component with a water guiding part and a drainage part, so as to achieve both ventilation and heat dissipation and wind and rain protection of the power distribution box.

[0005] The purpose of this utility model is achieved as follows: a protective structure for a distribution box, comprising: The mounting plate is located on the wall of the box body. The top of the mounting plate is provided with an outwardly extending rainproof eave, and the mounting plate is provided with a ventilation opening that connects to the inside of the box body. The rain shield is connected to the mounting plate via a rotating connection mechanism and can be rotated by wind pressure to seal or open the ventilation opening. The windward side of the rain shield is provided with a guide structure for directing wind and rain to both sides. The drainage assembly includes a water guide portion disposed on the rain shield and a drainage portion disposed on the mounting plate. When the rain shield is rotated to the position of sealing the ventilation opening under wind pressure, the water guide portion discharges the infiltrated liquid to the outside of the box. When the rain shield is rotated to the open position, the drainage portion discharges the liquid introduced through the water guide portion to the outside of the box.

[0006] The present invention is further configured such that the water guiding part includes a plurality of guide ribs evenly arranged on the leeward side of the rain shield, and each guide rib extends toward the lower edge of the vent.

[0007] The present invention is further configured such that the drainage part is a drainage slope provided at the lower edge of the vent of the mounting plate, and the drainage slope is used to receive the liquid drawn out from the lower end of the guide rib.

[0008] The present invention is further configured such that the rotating connection mechanism includes: Mounting ears are located on both sides of the mounting plate; A hinge shaft is provided on both sides of the rain shield, and the hinge shaft is hinged to the mounting ear.

[0009] The present invention is further configured such that a limiting part is provided at the bottom of the rain shield, and when there is no wind or the wind pressure is low, the limiting part contacts the mounting plate, so that the rain shield remains in an open state with its tilted outwards.

[0010] The present invention is further configured such that the limiting part is a support arm extending from the bottom of the rain shield to the bottom of the mounting plate, and the support arm abuts against the bottom of the mounting plate when the rain shield is open.

[0011] The present invention is further configured such that the flow guiding structure includes at least a pair of flow guiding plates symmetrically arranged with respect to the center line of the rain shield, the flow guiding plates extending from the top of the rain shield to the bottom.

[0012] The present invention is further configured such that a flow channel is formed between adjacent flow guide plates, and the width of the flow channel gradually increases from the top to the bottom.

[0013] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. The ventilation openings of the mounting plate work in conjunction with the rain shield driven by wind pressure. When there is no wind or the wind pressure is low, the rain shield remains open to dissipate heat. In windy or rainy weather, the rain shield rotates to seal the ventilation openings and block intrusion, thus improving the balance between ventilation and protection of the distribution box.

[0014] 2. By cooperating with the guide ribs on the leeward side of the rain shield and the drainage slope at the lower edge of the ventilation opening of the mounting plate, the guide ribs guide the seeping liquid when the rain shield is closed, and the drainage slope discharges the residual liquid when it is open, thus avoiding liquid accumulation and improving the drainage protection performance of the distribution box.

[0015] 3. By cooperating with the mounting plate through the support arm at the bottom of the rain shield, the support arm keeps the rain shield open when there is no wind or the wind pressure is low, ensuring continuous ventilation of the vents and improving the ventilation stability of the distribution box. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention in the open state; Figure 4 This is a cross-sectional structural diagram of the present invention in its closed state.

[0017] The attached diagram is labeled as follows: 1. Box body; 2. Mounting plate; 3. Rainproof eaves; 4. Ventilation opening; 5. Rain shield; 6. Windward side; 7. Rotating connection mechanism; 70. Mounting ear; 71. Hinge shaft; 8. Flow guiding structure; 80. Flow guiding plate; 9. Drainage assembly; 90. Water guiding part; 900. Flow guiding rib; 91. Drainage part; 910. Drainage slope; 10. Limiting part; 100. Support arm; 11. Flow guiding channel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-4 : Example 1:

[0019] This embodiment provides a protective structure for a distribution box, including: Mounting plate 2 is provided on the wall of box body 1. The top of mounting plate 2 is provided with an outwardly extending rainproof eave 3, and the mounting plate 2 is provided with a ventilation opening 4 that connects to the inside of box body 1. The rain shield 5 is connected to the mounting plate 2 via a rotating connection mechanism 7 and can be rotated by wind pressure to seal or open the ventilation opening 4. The windward side 6 of the rain shield 5 is provided with a guide structure 8 for guiding wind and rain to both sides. The drainage assembly 9 includes a water guiding part 90 provided on the rain shield 5 and a drainage part 91 provided on the mounting plate 2. When the rain shield 5 is rotated to the position of the sealed ventilation opening 4 by wind pressure, the water guiding part 90 discharges the infiltrated liquid to the outside of the box 1. When the rain shield 5 is rotated to the open position, the drainage part 91 discharges the liquid introduced through the water guiding part 90 to the outside of the box 1.

[0020] Mounting plate 2 is used to connect box 1 and rain shield 5. It also provides a heat dissipation channel for box 1 through its own ventilation opening 4, and provides an installation reference for rainproof eaves 3 and drainage part 91. Its structure is flat, with ventilation openings 4 on the plate that connect to the inside of box 1, and the top extends to form rainproof eaves 3. Its shape is mostly rectangular and adapted to the box wall of box 1. It can be fixed to the outside of the box wall of distribution box 1 by bolts, and is movably connected to rain shield 5 through rotating connection mechanism 7.

[0021] The rainproof eaves 3 are used to reduce rainwater from dripping or flowing directly from the top of the mounting plate 2 to the vent 4, thereby reducing the risk of rainwater intrusion into the housing 1. Its structure is a plate-like structure extending outward from the top edge of the mounting plate 2. It is long and narrow, consistent with the top of the mounting plate 2, and tilts outward at a certain angle to guide rainwater to flow outward. It can be integrally formed with the mounting plate 2 or welded to the top of the mounting plate 2.

[0022] The rain shield 5 is used to open or close the vent 4 and block wind and rain through the rotating connection mechanism 7. When there is no wind or the wind pressure is low, the vent 4 is opened to ensure heat dissipation. In windy and rainy weather, the vent 4 is closed by wind pressure. It works with the airflow guiding structure 8 to reduce the impact of wind and rain on the vent 4. Its structure is a plate-shaped structure adapted to the size of the vent 4. The windward side 6 is provided with the airflow guiding structure 8, the leeward side is provided with the water guiding part 90, and the two sides are provided with components that cooperate with the rotating connection mechanism 7. It is movably connected to the mounting plate 2 through the rotating connection mechanism 7, and can rotate around the connecting shaft to open or close the vent 4.

[0023] The rotating connection mechanism 7 is used to realize the rotatable connection between the rain shield 5 and the mounting plate 2, so that the rain shield 5 can be driven by wind pressure to rotate around the axis, and smoothly complete the opening or closing of the vent 4.

[0024] The flow guiding structure 8 is used to change the direction of wind and rain flow, guiding the wind and rain blowing towards the rain shield 5 to both sides of the rain shield 5, reducing the direct impact of wind and rain on the ventilation opening 4 area, and reducing the probability of rainwater infiltration.

[0025] The drainage component 9 is used to collect and drain the seeping liquid, preventing the liquid from entering the interior of the housing 1 through the vent 4, and preventing electrical components from getting damp or damaged. Its structure consists of a water guiding part 90 and a drainage part 91. The water guiding part 90 is a structure that guides the flow of liquid, and the drainage part 91 is a structure that receives and drains the liquid. The water guiding part 90 and the drainage part 91 cooperate with each other to ensure smooth liquid transmission. The water guiding part 90 is located on the leeward side of the rain shield 5, and the drainage part 91 is located on the mounting plate 2 near the lower edge of the vent 4. The two positions correspond to form a complete drainage path.

[0026] The water guiding section 90 includes multiple guide ribs 900 evenly arranged on the leeward side of the rain shield 5, each guide rib 900 extending toward the lower edge of the vent 4. The purpose of this design is to guide the infiltrated liquid to a specific direction through the guide ribs 900 to achieve effective drainage. The guide ribs 900 are elongated protrusions evenly arranged on the leeward side of the rain shield 5, each guide rib 900 extending toward the lower edge of the vent 4; the guide ribs 900 are integrally formed with the leeward side of the rain shield 5 or combined with it through other fixed connection methods. When the rain shield 5 is blown by wind pressure to the position of the closed vent 4, the liquid that seeps between the rain shield 5 and the mounting plate 2 can have its flow path restricted by the guide rib 900, causing the liquid to converge towards the lower edge of the vent 4 along its own extension direction. Part of the liquid can be directly discharged out of the box 1 due to gravity, while the other part of the liquid flows to the drain 91 and is eventually discharged out of the box 1 by the drain 91. This prevents the liquid from spreading randomly on the surface of the rain shield 5 and entering the box 1 through the vent 4, while not affecting the normal rotation of the rain shield 5.

[0027] The drainage section 91 is a drainage slope 910 located at the lower edge of the vent 4 of the mounting plate 2. The drainage slope 910 is used to receive liquid drawn from the lower end of the guide rib 900. The purpose of the above design is to receive and guide the liquid out through the drainage slope 910, so as to prevent the liquid from accumulating near the mounting plate 2 and seeping into the interior of the box 1. The drainage slope 910 is a slope structure located at the lower edge of the vent 4 of the mounting plate 2 and inclined towards the outside of the box 1. The drainage slope 910 is integrally formed with the mounting plate 2 or combined with other fixed connection methods. When the guide rib 900 guides the liquid to the lower end, the drainage slope 910 can receive part of the liquid flowing to the drainage slope 910 and use its own inclined structure to make the liquid flow along the slope to the outside of the box 1, which ensures that the liquid will not stagnate in the vent 4 area and does not affect the normal ventilation of the vent 4 or the opening and closing of the rain shield 5. Meanwhile, when the rain shield 5 returns to the open position, that is, when the wind pressure decreases, the drainage slope 910 can catch the liquid that has not flowed down in the guide rib 900 and finally discharge the liquid out of the box 1.

[0028] The rotating connection mechanism 7 includes mounting ears 70 on both sides of the mounting plate 2 and hinge shafts 71 on both sides of the rain shield 5. The hinge shafts 71 are hinged to the mounting ears 70. The purpose of the above design is to achieve a rotatable connection between the rain shield 5 and the mounting plate 2 through the cooperation of the mounting ears 70 and the hinge shafts 71, so that the rain shield 5 can flexibly switch states driven by wind pressure. The mounting ears 70 are protruding structures on both sides of the mounting plate 2, usually with shaft holes adapted to the hinge shafts 71. The hinge shafts 71 are shaft-shaped structures on both sides of the rain shield 5 that are adapted to the shaft holes of the mounting ears 70. The mounting ears 70 are integrally formed with the mounting plate 2 or are fixedly connected. The hinge shafts 71 are snapped into both sides of the rain shield 5, and the hinge shafts 71 are inserted into the shaft holes of the mounting ears 70 to form a hinge, which ensures the stability of the rain shield 5 when rotating, avoids displacement or jamming, and does not affect the ventilation effect when the rain shield 5 is open or the protective function when closed.

[0029] The bottom of the rain shield 5 is provided with a limiting part 10. When there is no wind or the wind pressure is low, the limiting part 10 contacts the mounting plate 2, keeping the rain shield 5 in an outward tilted open state. The purpose of the above design is to provide support and positioning for the rain shield 5 by setting the limiting part 10 at the bottom of the rain shield 5. When there is no wind or the wind pressure is low, the limiting part 10 contacts the mounting plate 2 and provides support, keeping the rain shield 5 stably in an outward tilted open state. This ensures that the ventilation opening 4 on the mounting plate 2 can continuously communicate with the outside, allowing air circulation inside and outside the housing 1 to complete heat dissipation. It also prevents the rain shield 5 from closing the ventilation opening 4 arbitrarily due to its own weight or slight disturbance, while not affecting the protective function of the rain shield 5 being driven by airflow to close the ventilation opening 4 when the wind pressure increases.

[0030] The limiting part 10 is a support arm 100 extending from the bottom of the rain shield 5 to the bottom of the mounting plate 2. The support arm 100 abuts against the bottom of the mounting plate 2 when the rain shield 5 is open. The purpose of the above design is to provide a limit for the rain shield 5 through the support arm 100, so as to ensure that the rain shield 5 can remain open to maintain ventilation when there is no wind or the wind pressure is low. The support arm 100 is a long strip structure extending from the bottom of the rain shield 5 to the bottom of the mounting plate 2, and the overall shape is adapted to the distance between the rain shield 5 and the mounting plate 2. The support arm 100 is integrally formed with the bottom of the rain shield 5 or is fixedly connected. When there is no wind or the wind pressure is low, the end of the support arm 100 away from the rain shield 5 abuts against the bottom of the mounting plate 2, providing support for the rain shield 5 and preventing the rain shield 5 from rotating arbitrarily to close the ventilation opening 4 due to its own weight or slight external force. At the same time, it does not affect the rain shield 5 being pushed by the airflow to rotate around the rotating connection mechanism 7 to close the ventilation opening 4 when the wind pressure increases.

[0031] The airflow guiding structure 8 includes at least one pair of guide plates 80 symmetrically arranged relative to the centerline of the rain shield 5, with each guide plate 80 extending from the top to the bottom of the rain shield 5. The purpose of this design is to guide the flow of wind and rain through the guide plates 80, reducing the direct impact of wind and rain on the ventilation opening 4 area. The guide plates 80 are at least one pair of plate-like structures symmetrically distributed relative to the centerline of the rain shield 5, and each guide plate 80 extends from the top to the bottom of the rain shield 5. The guide plates 80 are integrally formed with the windward side 6 of the rain shield 5 or are fixedly connected. When wind and rain blow towards the rain shield 5, the symmetrically arranged guide plates 80 can divert the airflow and rainwater to both sides of the rain shield 5, avoiding the concentrated action of wind and rain on the area corresponding to the ventilation opening 4 in the middle of the rain shield 5, reducing the probability of rainwater seeping into the interior of the housing 1 through the ventilation opening 4, while not affecting the normal operation of the rain shield 5 driven by wind pressure.

[0032] A flow channel 11 is formed between adjacent guide plates 80, and the width of the flow channel 11 gradually increases from the top to the bottom. The purpose of the above design is to optimize the flow path of wind and rain on the surface of the rain shield 5 by forming a flow channel 11 with a gradually increasing width from the top to the bottom by adjacent guide plates 80. When wind and rain act downward from the top of the rain shield 5, the gradually widening flow channel 11 can prevent airflow and rainwater from accumulating or generating turbulence in the channel, so that wind and rain can be more smoothly diverted to both sides of the rain shield 5, further reducing the direct impact of wind and rain on the area corresponding to the ventilation opening 4 in the middle of the rain shield 5, reducing the probability of rainwater seeping into the interior of the housing 1 through the ventilation opening 4, while not affecting the function of the rain shield 5 being driven to rotate by wind pressure to realize the opening and closing of the ventilation opening 4.

[0033] When there is no wind or the wind pressure is low, the support arm 100 at the bottom of the rain shield 5 abuts against the bottom of the mounting plate 2, keeping the rain shield 5 in an open, outward-tilted state. The hot air inside the housing 1 circulates with the cold air outside through the vent 4 on the mounting plate 2 to dissipate heat. The rainproof eaves 3 at the top of the mounting plate 2 prevent rainwater from dripping onto the vent 4 area. When encountering windy or rainy weather and the wind pressure increases, the airflow pushes the rain shield 5, causing the hinge shafts 71 on both sides of the rain shield 5 to rotate within the mounting ears 70 on both sides of the mounting plate 2. This causes the rain shield 5 to gradually close and eventually seal the vent 4. At this time, the windward surface 6 of the rain shield 5 is symmetrically arranged relative to the centerline and extends from the top to the bottom as a guide. The rain shield 5 is divided into two sides by the guide channel 11, which gradually increases in width from top to bottom between adjacent guide plates 80. If a small amount of rainwater seeps in, the guide ribs 900, which are evenly arranged on the leeward side of the rain shield 5 and extend toward the lower edge of the vent 4, will guide the rainwater to flow toward the lower edge of the vent 4. When the rain shield 5 is in the closed position, the guide ribs 900 will directly discharge the rainwater to the outside of the box. When the wind and rain weaken and the wind pressure decreases, the rain shield 5 will turn back to the open position. The rainwater guided by the guide ribs 900 will fall into the drainage slope 910 at the lower edge of the vent 4 of the mounting plate 2. The drainage slope 910 will receive the rainwater and discharge it to the outside of the box, thus preventing rainwater from entering the inside of the box 1.

[0034] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A protective structure for a distribution box, characterized in that, include: Mounting plate (2) is provided on the wall of the box body (1). The top of the mounting plate (2) is provided with an outwardly extending rainproof eave (3), and the mounting plate (2) is provided with a ventilation opening (4) that connects to the inside of the box body (1). The rain shield (5) is connected to the mounting plate (2) via a rotating connection mechanism (7) and can be rotated by wind pressure to seal or open the vent (4). The windward side (6) of the rain shield (5) is provided with a guide structure (8) for guiding wind and rain to both sides. The drainage assembly (9) includes a water guide (90) provided on the rain shield (5) and a drainage part (91) provided on the mounting plate (2). When the rain shield (5) is rotated to the position of the sealed ventilation opening (4) by wind pressure, the water guide (90) discharges the infiltrated liquid to the outside of the box (1). When the rain shield (5) is rotated to the open position, the drainage part (91) discharges the liquid introduced through the water guide (90) to the outside of the box (1).

2. The protective structure of a distribution box according to claim 1, characterized in that, The water guide section (90) includes a plurality of guide ribs (900) evenly arranged on the leeward side of the rain shield (5), each of the guide ribs (900) extending toward the lower edge of the vent (4).

3. The protective structure of a distribution box according to claim 2, characterized in that, The drainage section (91) is a drainage slope (910) located at the lower edge of the vent (4) of the mounting plate (2), and the drainage slope (910) is used to receive the liquid drawn from the lower end of the guide rib (900).

4. The protective structure of a distribution box according to claim 1, characterized in that, The rotating connection mechanism (7) includes: Mounting ears (70) are located on both sides of the mounting plate (2); A hinge shaft (71) is provided on both sides of the rain shield (5), and the hinge shaft (71) is hinged to the mounting ear (70).

5. The protective structure of a distribution box according to claim 1, characterized in that, The bottom of the rain shield (5) is provided with a limiting part (10). When there is no wind or the wind pressure is low, the limiting part (10) contacts the mounting plate (2) so that the rain shield (5) remains in an open state with its tilted outwards.

6. The protective structure of a distribution box according to claim 5, characterized in that, The limiting part (10) is a support arm (100) extending from the bottom of the rain shield (5) to the bottom of the mounting plate (2). The support arm (100) abuts against the bottom of the mounting plate (2) when the rain shield (5) is open.

7. The protective structure of a distribution box according to claim 1, characterized in that, The flow guiding structure (8) includes at least one pair of flow guiding plates (80) symmetrically arranged with respect to the center line of the rain shield (5), the flow guiding plates (80) extending from the top of the rain shield (5) to the bottom.

8. The protective structure of a distribution box according to claim 7, characterized in that, A flow channel (11) is formed between adjacent guide plates (80), and the width of the flow channel (11) gradually increases from the top to the bottom.

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