Cable branch box with multi-layer breathable waterproof structure

Abstract

The utility model relates to the technical field of distribution boxes, in particular to a cable branch box with a multilayer breathable waterproof structure, which comprises a box body, a breathable structure is arranged on the side wall of the box body, the breathable structure comprises a first breathable window arranged on the box body, a second breathable window is arranged on the inner side of a shutter, and the second breathable window is arranged on the inner side of the shutter. A gap used for guiding out accumulated water is arranged between the first ventilation window and the second ventilation window, a water guiding structure is arranged below the second ventilation window, the staggered design of the first ventilation window and the second ventilation window and the water guiding structure effectively prevent external solid particles and rainwater from entering, and safe operation of electrical elements in the box body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a cable branch box with a multi-layer breathable and waterproof structure. Background Art

[0002] The cable branch box is a type of distribution box. It has the characteristics of easy installation, special technical performance, fixed location, unique configuration function, no site restrictions, wide application, stable and reliable operation, high space utilization, small footprint and environmental protection. It is the control center for distributing electric energy.

[0003] In order to ensure that the cable branch box has a good heat dissipation effect, most of the time, shutters are opened to ventilate and dissipate heat for the distribution box. The size of the box determines the size and length of the shutters. In addition, for distribution boxes with higher protection level requirements, a layer of fine sand net can be attached to the inside of the shutters. However, due to the uncertainty of the splashing direction of external solid particles and rainwater, some splashed solid particles and rainwater will pass through the shutters into the distribution box, affecting the insulation of the electrical components inside the box and reducing the power supply reliability. Baffles are also used for waterproofing, but the air permeability cannot meet the requirements and cannot effectively ensure the safety of operators and equipment. Utility Model Content

[0004] The purpose of the utility model is to overcome the disadvantage of poor waterproof performance of cable branch boxes in the prior art and to provide a cable branch box with a multi-layer breathable and waterproof structure.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical scheme: a cable branch box with a multi-layer breathable and waterproof structure, comprising a box body, a breathable structure is arranged on the side wall of the box body, the breathable structure comprises a first breathable window arranged on the box body, a second breathable window is arranged on the inner side of the first breathable window, a gap is arranged between the first breathable window and the second breathable window for draining accumulated water, and a water guide structure is arranged below the second breathable window.

[0006] Furthermore, the first ventilation window and the second ventilation window are both blinds.

[0007] Furthermore, the first ventilation window is arranged on the side wall of the box body, and the second ventilation window is detachably arranged on the inner wall of the first ventilation window. The upper and lower parts of the second ventilation window are both provided with bending parts that abut against the inner wall of the box body.

[0008] Furthermore, the first ventilation window and the second ventilation window are staggered, and the ventilation gap of the first ventilation window and the protruding louver of the second ventilation window are on the same horizontal plane.

[0009] Furthermore, a U-shaped groove for sealing is provided on the bent portion at the lower part of the second air vent, and a sealing ring is provided inside the groove.

[0010] Furthermore, a through hole for drainage is provided on the side wall of the groove, and the through hole is arranged to be inclined downward.

[0011] The beneficial effects of the embodiment of the present utility model are as follows: the first air vent and the second air vent are staggered, that is, the air slit of the first air vent and the louver protruding from the second air vent are on the same horizontal plane, which not only increases the complexity of the path when water enters, improves the waterproof performance, but also enables the gas to form a more uniform flow; a U-shaped groove is designed on the bent portion at the lower part of the second air vent, and a sealing ring is embedded in the groove, which further enhances the waterproof sealing effect; downwardly inclined drainage holes are provided on the side walls of the U-shaped groove, and the holes can discharge a small amount of moisture accumulated in the groove in time to ensure the use effect; the detachable second air vent design facilitates later maintenance, reduces maintenance costs, and can significantly improve the stability and reliability of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0014] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0015] Figure 4 This is a schematic diagram of the cross-sectional structure of the groove of the utility model;

[0016] Figure 5 This is a front view structural diagram of the second vent window of the present invention;

[0017] In the figure: 1, box body; 101, first ventilation window; 102, second ventilation window; 2, through hole; 3, groove; 301, sealing ring. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] See also Figures 1 to 5The embodiment of the present utility model discloses a cable branch box with a multi-layer breathable and waterproof structure, which mainly includes a box body 1. A multi-layer breathable and waterproof structure is arranged on the side wall of the box body 1, including a first air window 101 arranged on the box body 1, and a second air window 102 is arranged on the inner side of the first air window 101. The first air window 101 is pressed into a shutter-shaped device by punching, and the second air window 102 is bolted to the inner side of the first air window 101 by bending a metal plate. The second air window 102 is a box-shaped box with an open side. The bottom of the second air window 102 is punched into the shape of a shutter, and the width of the shutter of the second air window 102 is greater than or equal to the width of the first air window 101. On the premise of ensuring air permeability, it prevents external air and water from entering, thereby improving the use effect.

[0020] The first air vent 101 (i.e., the outer layer of the louver) is directly arranged on the side wall of the box body 1. The design of the louver allows free circulation of air to provide necessary ventilation and heat dissipation for the interior of the box body 1. The louver can block the entry of large solid particles as much as possible while ensuring ventilation efficiency. The second air vent 102 (i.e., the inner layer of the louver) is designed as a detachable structure and is installed on the inner wall of the box body 1 on the inner side of the first air vent 101 by bolts to facilitate later maintenance and replacement. The upper and lower parts of the second air vent 102 are both provided with bending parts, which are in close contact with the inner wall of the box body 1 to form a preliminary sealing effect, thereby ensuring stable use inside the branch box.

[0021] The first air vent 101 and the second air vent 102 are staggered, that is, the air slits of the first air vent 101 and the protruding louvers in the second air vent 102 are on the same horizontal plane, which not only increases the complexity of the path when water enters, improves the waterproof performance, but also can form a more uniform flow.

[0022] A gap is provided between the first and second louvers 101, 102, for draining accumulated water. This gap effectively collects and drains rainwater that may have seeped into the first louver 101, preventing it from further penetrating the second louver 102 or the interior of the box 1. Furthermore, a U-shaped groove 3 is designed on the lower curved portion of the second louver 102, with a sealing ring 301 embedded within the groove 3, further enhancing the waterproof sealing effect. Downward-sloping drainage holes 2 are provided on the sidewalls of the U-shaped groove 3. These holes 2 can promptly drain any small amount of water that accumulates within the groove 3, preventing long-term retention of water and the resulting degradation of the sealing performance. The cable branch box, with its multi-layer waterproof structure, significantly improves its waterproof performance while maintaining excellent ventilation and heat dissipation. The staggered design and water-guiding structure of the first and second louvers 101, 102 effectively block the ingress of external solid particles and rainwater, ensuring the safe operation of the electrical components within the box 1. The detachable second louver 102 design facilitates subsequent maintenance, reduces maintenance costs, and significantly improves the stability and reliability of the power system.

[0023] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0026] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A cable branch box with a multi-layer breathable and waterproof structure, comprising a box body (1), characterized in that: A ventilation structure is provided on the side wall of the box body (1), and the ventilation structure comprises a first ventilation window (101) provided on the box body (1), a second ventilation window (102) is provided on the inner side of the first ventilation window (101), a gap for draining accumulated water is provided between the first ventilation window (101) and the second ventilation window (102), and a water guide structure is provided below the second ventilation window (102).

2. The cable branch box with a multi-layer breathable and waterproof structure according to claim 1, characterized in that: The first ventilation window (101) and the second ventilation window (102) are both blinds.

3. The cable branch box with a multi-layer breathable and waterproof structure according to claim 2, characterized in that: The first ventilation window (101) is arranged on the side wall of the box body (1), and the second ventilation window (102) is detachably arranged on the inner wall of the first ventilation window (101), and the upper and lower parts of the second ventilation window (102) are both provided with bending parts that abut against the inner wall of the box body (1).

4. The cable branch box with a multi-layer breathable and waterproof structure according to claim 3, characterized in that: The first ventilation window (101) and the second ventilation window (102) are staggered, and the ventilation gap of the first ventilation window (101) and the protruding louver of the second ventilation window (102) are on the same horizontal plane.

5. The cable branch box with a multi-layer breathable and waterproof structure according to claim 3, characterized in that: A U-shaped groove (3) for sealing is provided on the bent portion at the lower part of the second air vent (102), and a sealing ring (301) is provided inside the groove (3).

6. The cable branch box with a multi-layer breathable and waterproof structure according to claim 5, characterized in that: A through hole (2) for drainage is provided on the side wall of the groove (3), and the through hole (2) is arranged to be inclined downward.

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