JPH06217424A - Electrical equipment storage box - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to protect electrical equipment from water droplets that condense in the storage box. [Structure] In an electric device storage box 2 having a drip-proof plate 5 which covers the built-in electric device 1 inclined in one direction,
The drip-proof plate 5 is divided into a plurality of parts along the inclination thereof, and the divided drip-proof plate pieces 7, 8a, 8b, 8c, 9a, 9 are divided.
b and 9c are formed by stacking the end edges of the b and 9c with a predetermined gap therebetween, and the end portions of the drip-proof plate pieces located on the upper side of the d-plate pieces are located on the lower side. The feature is that they are arranged so as to cover the surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric equipment storage box installed outdoors, and more particularly to an electric equipment storage box improved to protect the electric equipment from dew condensation water generated in the storage box.

[0002]

2. Description of the Related Art In general, as shown in FIG. 6, an electric device 1 such as a switch installed on the ground is covered and housed in an electric device storage box 2. Further, in particular, the cables 7 buried in the ground are connected to each other at a manhole or a handhole (hereinafter referred to as a manhole) 3 for convenience, and an electric device 1 such as a switch is interposed between the connected cables 7. Will be done. Therefore, the electric device storage box 2 is provided in the upper opening of the manhole 3 formed on the vertical hole. This electric device storage box 2 is formed by a housing 4 whose inside is substantially sealed. By the way, condensed water is generated in the storage box 2 due to a temperature difference from the outside air and the like.
There is a problem that this condensed water drops on the electric device 1 and remarkably deteriorates the insulation performance of the electric device 1, and further, it causes a ground fault, a short circuit between phases, or the like to induce a power failure. In order to effectively solve this problem, the applicant of the present invention has provided a storage box having a drip-proof plate 5 as shown in FIG. 6 as disclosed in Japanese Utility Model Publication No. 3-40007. .

[0003]

However, the previously proposed drip-proof plate 5 is composed of one continuous plate member which is inclined in one direction so as to cover the electric device 1 and which is provided inside the storage box 2. Since water drops that condense and drip on the ceiling part or the top plate 10 of the container flow down the upper surface or the surface part of the drip-proof plate 5 and flow down to the edge part thereof, directly on the electric device 1 and the ceiling of the storage box 2. Condensation water is sufficiently prevented from falling from the parts. However, the present inventor has found out that there is a problem that water drops are condensed on the back surface of the drip-proof plate 5 and the condensed water drops onto the electric device 1. Generally, since the drip-proof plate 5 is composed of one continuous plate material and covers the electric device 1, the stroke from the upper end to the edge of the drip-proof plate 5 is relatively long,
The dew condensation water that has condensed on the back surface of the drip-proof plate 5 does not flow down to the edge portion of the drip-proof plate 5, but drops onto the electric device 1 on the way.
Further, since the electric device storage box 2 is set to have a size for storing necessary electric devices, there is a problem that the inclination angle of the drip-proof plate provided inside the electric device storage box 2 cannot be set to a predetermined value or more. Therefore, water droplets that condense on the back surface of the drip-proof plate 5 may fall onto the electric device 1 to reduce its insulation performance, and further, a ground fault, a phase-to-phase short circuit, or the like may occur, leading to a power failure or the like.

Therefore, an object of the present invention is to solve the above problems and to provide an electric equipment storage box capable of protecting the electric equipment from water droplets that condense in the storage box.

[0005]

In order to achieve the above object, the present invention relates to an electric device storage box having a drip-proof plate which covers the built-in electric device at an angle in one direction and covers the drip-proof plate. Is divided into a plurality of parts along the inclination thereof, and the divided drip-proof plate pieces are configured by overlapping the end edges thereof with a predetermined gap therebetween, and the ends of the drip-proof plate pieces positioned on these upper parts. The rear surfaces of the parts are arranged so as to cover the end surfaces of the drip-proof plate pieces located at the bottom.

[0006]

The drip-proof plate is divided into a plurality of parts along its inclination, and the divided drip-proof plate pieces are formed by stacking their end edges with a predetermined gap and overlapping each other. Since the rear surface of the end of the drip-proof plate piece is arranged so as to cover the end surface of the drip-proof plate piece located at the bottom, respectively, the condensed water dripping from the ceiling of the electrical equipment storage box is the surface of the drip-proof plate. It is received on the surface of the drip-proof plate and is received along with it, and it flows down along the front surface of the drip-proof plate, and the condensed water that has condensed on the back surface of the drip-proof plate is superposed downward from the back surface. It can be delivered to the surface of the drip plate to flow down and be drained.

[0007]

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, like the conventional example, an electric device storage box 2 is provided on a manhole 3, and an electric device 1 is built in the electric device storage box 2.

As shown in FIGS. 1 and 2, in the present invention, the drip-proof plate 5 has water droplets that condense on the back surface of the drip-proof plate 5 from the central portion 6 toward both sides in the inclined direction along the front surface portion. It is divided into a plurality of drip-proof plate pieces with a predetermined stroke so as to flow down. In this embodiment, the drip-proof plate 5 includes a drip-proof plate piece 7 having a watershed shape in the central part 6 and three drip-proof plate pieces 8 each in a tilting direction on both sides from the central part 6.
It is divided into a, 8b, 8c, 9a, 9b and 9c.
The drip-proof plate piece 7 in the central portion 6 and these divided drip-proof plate pieces 8
Among the a, 8b, 8c, 9a, 9b, 9c, the drip-proof plate piece 7 of the central portion 6 and the three drip-proof plate pieces 8a, 8b of one inclined surface,
The drip-proof plate 5 is formed for 8c. At the lower end of the drip-proof plate piece 7 in the central portion 6, adjacent drip-proof plate pieces 8a, which are positioned below the drip-proof plate piece 7, are provided so that their upper end edges are overlapped with a predetermined gap. In other words, the lower end portions of the drip-proof plate pieces 7 in the central portion 6 are arranged so as to cover the surfaces of the upper end portions of the adjacent drip-proof plate pieces 8a. In addition, this adjacent drip-proof plate piece 8
A drip-proof plate piece 8b adjacent to this is provided at the lower end portion of a by overlapping the upper end edge portion thereof with a predetermined gap,
The rear surface of the lower end portion of the drip-proof plate piece 8a located at the upper portion is arranged so as to cover the surface of the upper end portion of the drip-proof plate piece 8b located at the lower portion. In this manner, the drip-proof plate pieces 8c adjacent to the drip-proof plate pieces 8b are sequentially superposed on the lower ends of the adjacent drip-proof plate pieces 8b,
At the lower end of the drip-proof plate piece 8c at the lowermost end, water droplets 11
The drip 15 is formed by being bent downward so that the drip plate 5 is inclined to one side and one inclined surface of the drip-proof plate 5 is formed.

Next, a drip-proof plate piece 9a adjacent to the drip-proof plate piece 7 located on the opposite side of the central portion 6 from the drip-proof plate piece 7 is overlapped with its end edge portion with a predetermined gap. The rear surface of the lower end portion of the drip-proof plate piece 7 in the central portion 6 is arranged so as to cover the surface of the upper end portion of the adjacent drip-proof plate piece 9a. At the lower end of the adjacent drip-proof plate piece 9a, the adjacent drip-proof plate piece 9b is provided by overlapping the upper end edges thereof with a predetermined gap, and the lower end of the drip-proof plate piece 9a located on the upper side. The rear surface of the portion is arranged so as to cover the surface of the upper end portion of the drip-proof plate piece 9b located in the lower portion. In this way, the adjacent drip-proof plate pieces 9
The drip-proof plate pieces 9c that are further adjacent to each other are sequentially stacked on the lower end of b, and the lower end of the drip-proof plate piece 9c at the lowermost end is bent downward so that water droplets drop into the drain gutter 11, and The other drain 15 of the drip plate 5 is formed. The drip-proof plates are arranged symmetrically around the drip-proof plate piece 7 of the central portion 6 to form a drip-proof plate that is inclined to the left and right as a whole.

Next, the operation of the embodiment will be described.

As shown in FIG. 3, according to the above construction, the water droplets that have condensed on the top plate 10 of the storage box 2 are the drip-proof plate pieces 7, 8a, 8b, 8c, 9a constituting the drip-proof plate 5. , 9b, 9c
Each of the drip-proof plate pieces 7,
8a, 8b, 8c, 9a, 9b, 9c is flown down along the surface of the drip plate pieces 7, 8a, 8b, 8
From the lower edge of c, 9a, 9b, 9c, it will flow down to the upper surface of the adjacent drip-proof plate pieces 8a, 8b, 8c, 9a, 9b, 9c or be guided by the drain gutter 11 to be drained. . On the other hand, the water droplets that condense on the back surface of the drip-proof plate piece flow through the back surface portions of the drip-proof plate pieces 7, 8a, 8b, 8c, 9a, 9b, 9c, and from the edge portions of these back surface portions, the adjacent droplets Drop plate piece 8
a, 8b, 8c, 9a, 9b, 9c, flow down along the upper surface portion or the surface portion of these drip-proof plates, and like the water drops dropped from the top plate 10, the drain gutter. 1
It will be drained by being guided by 1.

Thus, the water drops that have fallen on the surface of each drip-proof plate piece are transferred onto each drip-proof plate piece and flow down to be guided to the drain gutter. In particular, water droplets or condensed water that has condensed on the back surface of each drip-proof plate piece flows for a short stroke on the back surface of each drip-proof plate piece, and is transferred onto the surface part of the adjacent drip-proof plate piece. It will flow on the surface of the drip-proof plate piece and will be guided to the drain gutter. In this way, by setting the strokes of the drip-proof plate pieces to be short, the water droplets flowing on the back surface do not drop onto the electric device 1 on the way and are reliably delivered to the adjacent drip-proof plate pieces. Will be washed away.

From the above, when the drip-proof plate is constructed as described above, not only the water drops dripping on the drip-proof plate from the ceiling part of the storage box or the top plate 11 but also the water-drops condensed on the back surface of the drip-proof plate. The condensed water can also be drained by guiding it to the drain gutter.

Each of the drip-proof plate pieces formed by dividing is
It is needless to say that the inclination angle is taken into consideration so long as it falls within the stroke range along which water droplets that condense on the back surface can flow down.

Next, a modified embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 4, each of the drip-proof plate pieces 12, 13a, 13b, 13c, 14a, 14b, 14 of the present embodiment.
c is a drip-proof plate piece 7, 8a, 8b, 8 shown in FIG. 1 and FIG.
c, 9a, 9b, 9c, drip-proof plate pieces 7, 8a, 8
Upper end edges of b, 8c, 9a, 9b, 9c are bent upward and bent back to form a trough portion 16, and conversely, lower end edges are bent to form a drainage portion 17.

By forming each drip-proof plate piece in this way, as shown in FIG. 5, each drip-proof plate piece 12, 13a, 1 is formed.
The water droplets flowing down to the upper surface or the surface portion of 3b, 13c, 14a, 14b, 14c make it possible to pass the water droplets well on the drip-proof plate piece located therebelow, and
In addition, since a gutter is provided at the upper end of each drip-proof plate, water is reliably captured on each drip-proof plate.

[0019]

In summary, according to the present invention, the following excellent effects are exhibited.

Condensation water condensed on the ceiling of the storage box can be captured by the drip-proof plate, and water droplets condensed on the back surface of the drip-proof plate can also be collected and drained. , It is possible to completely protect electric equipment stored in the storage box from dew condensation water. Further, the structure is simple, and it can be easily adopted in an existing electrical equipment storage box, and is thus versatile.

[Brief description of drawings]

FIG. 1 is an example of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the drip-proof plate according to the embodiment of the present invention.

FIG. 3 is a diagram showing an operation of the drip-proof plate according to the embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view of a main part of a drip-proof plate, which is a modified example of the present invention.

FIG. 5 is a modified example of the present invention and is a diagram showing the operation of the drip-proof plate.

FIG. 6 is a diagram showing a conventional example.

[Explanation of symbols]

 1 Electrical Equipment 2 Electrical Equipment Storage Box 5 Dripproof Plate 7, 8a, 8b, 8c, 9a, 9b, 9c Dripproof Plate Piece

Claims (1)

[Claims] 1. An electric device storage box having a drip-proof plate that covers the built-in electric device by tilting in one direction, and the drip-proof plate is divided into a plurality of parts along the tilt, and these are divided. The drip-proof plate pieces are formed by overlapping the end edges of the drip-proof plate pieces with a predetermined gap therebetween, and the ends of the drip-proof plate pieces located on the upper side and the rear surface of the drip-proof plate piece are respectively located on the lower side. An electrical equipment storage box characterized by being arranged so as to cover the surface of the part.