A reliable protective outdoor box structure

Abstract

The utility model provides a reliable protective outdoor box structure belongs to outdoor box structure field, the utility model discloses reliable protective outdoor box structure includes the box body and the box door who cooperates with box body, still includes setting the upper crossbeam at the top of box body, the first waterproof groove is equipped with along the upper crossbeam length direction under the upper crossbeam, the vertical opening and closing edge of box door is equipped with the second waterproof groove who matches with the height of box door, the first waterproof groove of upper crossbeam is equipped with the avoidance gap who overlaps with the second waterproof groove of box door, is equipped with the water receiving hopper below the avoidance gap on the box door, the water receiving hopper can receive the water of first waterproof groove and discharge through the avoidance gap, the second waterproof groove is equipped with the drain outlet who communicates with water receiving hopper, can along with the second waterproof groove by the drain outlet and discharges the water of water receiving hopper. The utility model discloses simple and reliable structure can improve the protection performance of outdoor box.

Description

Technical Field

[0001] This utility model relates to the field of outdoor box structures, specifically to a reliable protective outdoor box structure. Background Technology

[0002] In high and medium voltage power transmission and distribution systems, switch nodes are often located outdoors. These switch nodes need to be equipped with outdoor enclosures to provide necessary protection, ensure their normal operation, and ensure the safety of equipment and personnel.

[0003] To fulfill its function, this outdoor enclosure must achieve a certain level of protection. Currently, the power industry, as well as the State Grid and Southern Power Grid, generally require outdoor enclosures to have an IP43 protection rating. The first digit indicates protection against foreign objects up to 1mm thick, while the second digit indicates protection against water spray, meaning that water spray on any vertical surface within a 60° range will have no harmful effects.

[0004] In the industry, the length of outdoor power distribution boxes varies depending on the different combinations of switch cabinets inside. They often have two doors that open in opposite directions, or a door-on-door layout that opens in opposite directions. Ultimately, the two doors in the middle must be closed together to ensure protection requirements. When the doors are closed, the gap between them is a weak point in the protection. There is always a gap between the door seam and the overlap of the crossbeam on the outdoor distribution box, making it easy for rainwater or foreign objects to enter.

[0005] Currently, the industry generally employs the following methods for handling such cases:

[0006] The first method involves installing a strip on the upper crossbeam of the outdoor enclosure, forming a waterproof groove for the upper crossbeam, with the waterproof edge of the door panel resting on the strip. In this method, the waterproof panel on the door panel only provides frontal coverage and does not form a waterproof groove channel, thus failing to achieve a protective effect.

[0007] The second method involves applying waterproof or sealing strips to the door panel or box body. However, this method is susceptible to the quality and aging of the waterproof or sealing strips, and it also presents practical difficulties. Outdoor box door frames are relatively large, and applying waterproof sealing strips evenly across the entire door frame to achieve waterproofing around the perimeter is costly, requires extensive assembly work, and necessitates skilled personnel, which is detrimental to efficiency and cost control during mass production.

[0008] The third approach involves using a maze-like structure at the junction of the door gap between the two doors and the crossbeam on the outdoor box. This is theoretically feasible, but it complicates the product structure, increases the space required for waterproofing, and may affect the overall dimensions of the box, increasing its height. This is also detrimental to controlling the box's cost. Utility Model Content

[0009] To address the problems in the existing technology, this utility model provides a reliable protective outdoor box structure.

[0010] This utility model relates to a reliable protective outdoor box structure, comprising a box body and a box door that cooperates with the box body, and an upper crossbeam disposed above the box body. A first waterproof groove is provided below the upper crossbeam along the length of the upper crossbeam. A second waterproof groove matching the height of the box door is provided on the longitudinal opening and closing side of the box door. An avoidance notch is provided on the first waterproof groove of the upper crossbeam to overlap with the second waterproof groove of the box door. A water-receiving hopper is provided on the box door below the avoidance notch. The water-receiving hopper can collect water discharged from the first waterproof groove through the avoidance notch. The second waterproof groove is provided with a drain outlet communicating with the water-receiving hopper, which can discharge the water from the water-receiving hopper through the drain outlet along the second waterproof groove.

[0011] Furthermore, the bottom surface of the water-receiving hopper is flush with the lower edge of the drain outlet.

[0012] Furthermore, the door is equipped with louvers, and a protective net is installed inside the louvers, with the mesh gap of the protective net being smaller than a first set value.

[0013] Furthermore, the box body includes columns disposed at the four corners of the box body. The cross-sectional shape of the columns is L-shaped, including a first side and a second side. Both the first side and the second side are provided with a third waterproof groove disposed along the length direction of the column.

[0014] Furthermore, a lower crossbeam is provided below the box body, and the lower crossbeam is provided with a fourth waterproof groove, and the fourth waterproof groove is provided with an avoidance notch that overlaps with the second waterproof groove of the box door.

[0015] Furthermore, the third waterproof groove of the column, the first waterproof groove of the upper crossbeam, and the fourth waterproof groove of the lower crossbeam form a U-shaped waterproof channel.

[0016] Furthermore, the reliable protective outdoor box structure also includes a top plate assembly, which has a protruding outer edge of the box body, and the outer edge has ventilation holes with a diameter smaller than a first set value.

[0017] Furthermore, the ventilation holes are laser-cut.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the structure of this utility model is simple and reliable. By setting a water-collecting hopper, it can collect rainwater or foreign objects from the weak points of protection and discharge them through the drain outlet, thereby preventing rainwater from flowing into the outdoor box from the clearance gap on the upper crossbeam, thus improving the protective performance of the outdoor box.

[0019] The outdoor case achieves an IPX3 waterproof rating through its "U"-shaped waterproof groove and drainage outlet. In addition, by welding a protective mesh inside the louvers on the door panel and using a ventilation design, the air circulation inside the outdoor case is enhanced, achieving an IP4X protection rating. Attached Figure Description

[0020] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the outdoor box of this utility model;

[0022] Figure 2 This is a schematic diagram of the waterproof channel structure composed of the upper crossbeam, column and lower crossbeam of this utility model;

[0023] Figure 3 A schematic diagram showing the rainwater diversion between the box door and the lower crossbeam;

[0024] Figure 4 This is a schematic diagram of the column structure;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the column;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the beam;

[0027] Figure 7 This is a schematic diagram of the structure of one embodiment of the cabinet door;

[0028] Figure 8 This is a schematic diagram of the front structure of the cabinet door;

[0029] Figure 9 This is a schematic diagram of the structure of the box door and the upper crossbeam. Detailed Implementation

[0030] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, and accompanying drawings are used to distinguish different objects, not to describe a particular order.

[0031] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] like Figure 1 As shown, as an embodiment of this utility model, the outdoor box structure in this example is an outdoor power box for configuring switch nodes in a high- and medium-voltage power transmission and distribution system, designed and developed according to, but not limited to, the following standards:

[0034] I. GB / T 3906 3.6kV~40.5kV AC metal-enclosed switchgear and controlgear;

[0035] II. JB / T 10840 "3.6kV~40.5kV High Voltage AC Metal-Enclosed Cable Tap Changer";

[0036] III. GB 4208-2008 Degrees of protection provided by enclosures (IP code);

[0037] IV. Common technical requirements of GB / T 11022 standard for high voltage switchgear and controlgear.

[0038] Based on the problems encountered in actual work, this example solves the problems by developing a reliable waterproof outdoor box structure.

[0039] The outdoor box structure in this example includes a box body 1 and a box door 3 that cooperates with the box body 1. A top plate assembly 2 is also provided on the top surface of the box body 1. The outer edges of the top plate assembly 2 protrude from the box body 1.

[0040] In this example, the enclosure 1 includes a base assembly 4 and a column assembly 5 mounted on the base assembly 4. The base assembly 4 is the support for the entire enclosure and also the load-bearing part of the switch itself inside the enclosure. The base assembly 4, the column assembly 5, and the top plate assembly 2 form the frame of the entire outdoor enclosure structure. The column assembly 5 includes four columns in the front, back, left, and right directions. One or more enclosure doors 3 are provided between the four columns as needed.

[0041] like Figure 1-8 As shown, the top plate assembly in this example is provided with an upper crossbeam 6, and the base assembly 4 is provided with a lower crossbeam 7. The upper crossbeam 6 and the lower crossbeam 7 are respectively fixedly connected to four columns.

[0042] This example uses one side of an outdoor box structure for detailed explanation. The front of this outdoor box structure has four doors 3. Below the upper crossbeam 6, along the length of the upper crossbeam, there is a first waterproof groove 602. The longitudinal opening edge of each door 3 has a second waterproof groove 10 matching the door height. The first waterproof groove 602 on the upper crossbeam 3 has three clearance notches 601 that overlap with the second waterproof groove 10 on the door 3. A water inlet 8 is located on the door 3, below the clearance notches 601. The water inlet 8 can collect water or debris discharged from the first waterproof groove 602 through the clearance notches 601. The second waterproof groove 10 has a drain outlet 9 communicating with the water inlet 8, allowing water from the water inlet 8 to drain out along the second waterproof groove 10 through the drain outlet 9. Preferably, for smoother drainage and to avoid water accumulation, the inner bottom surface of the water inlet 8 in this example is flush with the lower edge of the drain outlet 9.

[0043] By installing water-collecting troughs between the door seams and at the clearance opening of the upper crossbeam 6, rainwater or foreign objects at the weak points of protection can be collected, and the water can be discharged to the outside of the box through the drain outlet. This prevents rainwater from entering the outdoor box through the clearance opening on the upper crossbeam, thereby improving the protective capability at the junction of the door seams and the upper crossbeam, and thus improving the overall protective performance of the outdoor box.

[0044] In this example, the water hopper is welded directly onto the box body, and an opening is made in the second waterproof groove. It can be integrally formed with the box door 3 without the need for additional assembly processes, which is conducive to mass production. Compared with existing waterproof designs, it greatly simplifies the waterproof structure, reduces product costs, and improves production efficiency.

[0045] like Figures 2-3 , Figure 5 and Figure 6As shown, the cross-sectional shape of the columns 501 and 502 in this example is L-shaped, including a first side 5011 and a second side 5012. The first side 5011 and the second side 5012 are provided with a third waterproof groove 5013 and 5014 arranged along the length of the column. The lower crossbeam 7 in this example is provided with a fourth waterproof groove 702. The fourth waterproof groove 702 is provided with an avoidance notch 701 that overlaps with the second waterproof groove of the box door.

[0046] The waterproofing principle of this cabinet adopts the concept of "controlled water immersion and effective drainage". The third waterproof groove of the upright, the first waterproof groove of the upper crossbeam and the fourth waterproof groove of the lower crossbeam form a U-shaped waterproof channel. This facilitates the diversion of water through the waterproof channel into the fourth waterproof groove 702, and then flows along the lower surface of the fourth waterproof groove 702 to the outside of the cabinet. In addition, the first waterproof groove of the upper crossbeam and the fourth waterproof groove of the lower crossbeam in this example also form a rainwater diversion channel with the second vertical waterproof groove on the cabinet door. This facilitates the rapid diversion of rainwater on the outer surface of the cabinet and drains the water through the waterproof groove, preventing rainwater from entering the cabinet.

[0047] Preferably, for heat dissipation and ventilation, a louver 301 is provided on the door 3, and a protective mesh is installed inside the louver 301. The mesh gap of the protective mesh is smaller than a first set value. In addition, several sets of ventilation holes are provided on the outer edge of the top plate assembly, and the ventilation holes are directly cut with a laser cutting method, making them smaller than the first set value. Since the State Grid and Southern Power Grid generally provide IP43 or IP44 protection levels for outdoor boxes, the first "4" refers to the gap between the box and the box not being greater than 1mm. Therefore, the first set value in this example is set to less than 1mm, and 0.09mm can be selected in this example.

[0048] The drainage structure, featuring a U-shaped waterproof groove and drain outlet, achieves an IPX3 waterproof rating for the outdoor enclosure. Furthermore, by incorporating a protective mesh inside the louvers on the door panel and a ventilation design, air circulation within the enclosure is enhanced, achieving an IP4X protection rating. Therefore, this invention meets the IP43 protection rating requirements of the power industry, the State Grid, and the Southern Power Grid.

[0049] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A reliable protective outdoor box structure, characterized in that: The device includes a housing and a door that fits into the housing. It also includes an upper crossbeam positioned above the housing. A first waterproof groove is provided below the upper crossbeam along its length. A second waterproof groove matching the height of the door is provided on the longitudinal opening side of the door. The first waterproof groove on the upper crossbeam has an avoidance notch that overlaps with the second waterproof groove of the door. A water-receiving hopper is provided on the door below the avoidance notch. The water-receiving hopper can collect water discharged from the first waterproof groove through the avoidance notch. The second waterproof groove has a drain outlet communicating with the water-receiving hopper, which can discharge water from the water-receiving hopper through the drain outlet along the second waterproof groove.

2. The reliable protective outdoor box structure according to claim 1, characterized in that: The bottom surface of the water inlet is flush with the lower edge of the drain outlet.

3. The reliable protective outdoor box structure according to claim 1 or 2, characterized in that: The box door is equipped with louvers, and a protective net is installed inside the louvers. The mesh gap of the protective net is smaller than a first set value.

4. The reliable protective outdoor box structure according to claim 1 or 2, characterized in that: The box body includes columns disposed at the four corners of the box body. The cross-sectional shape of the column is L-shaped, including a first side and a second side. Both the first side and the second side are provided with a third waterproof groove disposed along the length of the column.

5. The reliable protective outdoor box structure according to claim 4, characterized in that: The box body is provided with a lower crossbeam, the lower crossbeam is provided with a fourth waterproof groove, and the fourth waterproof groove is provided with an avoidance notch that overlaps with the second waterproof groove of the box door.

6. The reliable protective outdoor box structure according to claim 5, characterized in that: The third waterproof groove of the column, the first waterproof groove of the upper crossbeam, and the fourth waterproof groove of the lower crossbeam form a U-shaped waterproof channel.

7. The reliable protective outdoor box structure according to claim 1 or 2, characterized in that: The reliable protective outdoor box structure also includes a top plate assembly, which has a protruding outer edge of the box body, and the outer edge has ventilation holes with a diameter smaller than a first set value.

8. The reliable protective outdoor box structure according to claim 7, characterized in that: The ventilation holes were laser-cut.

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