JPH0993731A - Outdoor switchboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlarge the opening area of an intake port by providing the intake port at the bottom of a casing with a plurality of slits long in horizontal direction, a ramp going higher gradually inward of the casing from under the slit, and a turnup extending roughly upward from the top of the ramp. SOLUTION: A cover 1 having a projection 4 is attached to the outside of the door in an outdoor switchboard, and a plurality of slits 9 long in horizontal direction are made with equal intervals in vertical direction at the projection 4. And, a ramp 10 going higher gradually toward inside the casing from under the slit 9 is made, and a turnup 11 is made upward at a right angle with the ramp 10 from the top of each ramp 10. Hereby, outside air flows into the casing through the interior of the projection 4 from the slit 9. On the other hand, if rain enters into the projection 4 through the slit 9 obliquely from half above by a storm, the rain water flows down along the topside of the ramp 10, and is discharged out of the projection 4.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an outdoor switchboard,
It is an improved intake hole.

[0002]

2. Description of the Related Art In an outdoor switchboard arranged outdoors, an intake hole is formed in a door for the purpose of preventing an increase in temperature inside the housing, and at the same time, air whose temperature has risen inside is discharged to the outside. Therefore, an exhaust hole is formed in the upper part of the housing.

FIG. 4 shows an intake hole of a conventional outdoor switchboard.
An opening is formed in the door (not shown), and the cover 1 is provided in the opening.
Is attached. The cover 1 is configured by integrally forming a mounting portion 3 having a hole 2 for mounting on a door and a protruding portion 4 protruding outward from the mounting portion 3. A plurality of louvers 5 are formed in the protrusion 4 by punching from the inside to the outside to form side intake holes, and below the protrusion 4, a lower intake hole 6 is formed.

The outside air enters the inside of the housing from the side intake holes below the louver 5 and the lower intake holes 6, and is discharged from an exhaust hole (not shown) in the upper part of the housing.

[0005]

However, since the side air intake holes are formed under the louver by punching,
The cross-sectional area of the opening for intake is small, and most intake depends on the lower intake hole. On the other hand, the lower intake hole must be projected outward from the door, and if there is a large amount of protrusion, it will interfere with the protrusion of the adjacent door when the door is opened in a row board configuration, so the protrusion length is reduced. Enlargement comes with constraints.

Therefore, an object of the present invention is to provide an outdoor switchboard which solves the above problems.

[0007]

In order to achieve such an object, the structure of the invention according to claim 1 is directed from the lower surface of the slit formed in the housing to the inside of the housing so that rain flows out of the housing. It is characterized in that a sloping portion which is bent upwards is provided at the upper end of the sloping portion so that rain does not exceed the sloping portion.

According to the second aspect of the present invention, the housing is provided with a protruding portion so that the rain entering through the slit flows down to the outside of the housing, and the lower portion is opened to the atmosphere.
An inclined part is provided extending from the upper surface of the slit below so that rain entering from the slit will drop toward the housing,
It is characterized in that a folded-back portion is provided at the lower end of the inclined portion so as to block the blown-in rain from reaching the housing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. Since the present embodiment is an improvement of a part of the conventional outdoor switchboard, the same parts as those of the prior art will be designated by the same reference numerals and description thereof will be omitted, and only different parts will be described.

(A) Embodiment 1 FIGS. 1 and 3 show the structure of an outdoor switchboard according to the present invention.
A cover 1 having a protrusion 4 is attached to the outside of a door of an outdoor switchboard as in the conventional case, and a plurality of horizontally long slits 9 are formed in the protrusion 4 at equal intervals along the vertical direction. Then, the inclined portions 10 are formed so as to become higher from the lower surfaces of the respective slits 9 toward the inside of the housing, and the folded portions 11 are formed from the upper ends of the respective inclined portions 10 upwardly at right angles to the inclined portions 10. ing.

Next, the operation of such an outdoor switchboard will be described.
As shown by the solid line in FIG. 1, the outside air flows from the slit 9 into the inside of the housing through the inside of the protrusion 4. On the other hand, when the rain enters the inside of the protruding portion 4 through the slit 9 from diagonally above as shown by the broken line due to wind and rain, the rain flows down along the upper surface of the inclined portion 10 and is discharged to the outside of the protruding portion 4. It When the wind is strong, the rain is pushed obliquely upward along the upper surface of the inclined portion 10, but it is stopped by the presence of the folded portion 11, and the rain does not penetrate into the inside of the protruding portion 4.

(B) Second Embodiment Next, a second embodiment of the outdoor switchboard according to the present invention is shown in FIG. In this embodiment, the formation of the slits 9 is the same as that of the first embodiment, but the inclined portions 13 are formed so as to be gradually lowered from the upper surface of each slit 9 toward the inside of the housing.
A folded-back portion 14 is formed from the lower end of the inclined portion 13 toward the lower side perpendicular to the inclined portion 13.

Next, the operation of such an outdoor switchboard will be described. As shown by the solid line in FIG. 2, the outside air flows into the inside of the housing from the slit 9 via the inside of the protrusion 4 as in the first embodiment. On the other hand, when the rain flows from the slit 9 to the inside of the protruding portion 4, the rain flows down along the upper surface of the inclined portion 13 and is discharged from the lower intake hole 6 to the outside of the housing, as indicated by the broken line arrow. In addition, even if rain blows in by the wind, the folded-back portion 14
Since it is blocked by and falls, the rain does not blow directly into the inside of the housing. Therefore, rain does not penetrate into the inside of the housing.

In the first and second embodiments, the intake hole is formed in the door, but the door is not necessarily required. Further, in the first embodiment, the door does not necessarily have to have the protrusion.

[0015]

As is apparent from the above description, claim 1
According to the outdoor switchboard, the inclined portion extending obliquely upward from the lower surface of the slit toward the inside of the housing and the folded portion extending upward from the upper end of the inclined portion are provided, so that a large opening area for intake can be obtained. The rain that has entered through the slit flows down along the slope and is discharged, so that the rain does not enter the inside of the housing.

In the outdoor switchboard according to the second aspect of the invention, since the inclined portion extending obliquely downward from the upper surface of the slit toward the inside of the housing is provided, and the folded-back portion extending substantially downward from the lower end of the inclined portion is provided. The opening area for intake is large, and the rain and wind that enters from the slit is blocked by the folding part and falls, so it does not blow into the inside of the housing and flows down along the upper surface of the inclined part and the opening below the protruding part. Is discharged to outside.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of an outdoor switchboard according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of a second embodiment of an outdoor switchboard according to the present invention.

FIG. 3 relates to a main part of the first embodiment of the outdoor switchboard according to the present invention, (a) is a front view, (b) is a view taken along the line AA of (a),
(C) is a BB arrow view of (a).

4A and 4B relate to a main part of a conventional outdoor switchboard, in which FIG. 4A is a front view, FIG. 4B is a CC arrow view in FIG. 4A, and FIG.

[Explanation of symbols]

 4 ... Projection part 6 ... Lower intake hole 9 ... Slit 10, 13 ... Inclined part 11, 14 ... Folded part

Claims (2)

[Claims] 1. An outdoor switchboard in which an air intake hole is formed in a lower part of a housing accommodating an electric device and an exhaust hole is formed in an upper part of the housing, wherein the air intake hole includes a plurality of slits elongated in a horizontal direction and slits. An outdoor power distribution panel, comprising: an inclined portion that gradually increases from the lower surface toward the inside of the housing; and a folded-back portion that extends substantially upward from the upper end of the inclined portion. 2. An outdoor switchboard in which an air intake hole is formed in a lower portion of a housing accommodating an electric device, and an exhaust hole is formed in an upper portion of the housing, and the outdoor power distribution panel protrudes outward from the housing and is below the protruding portion. Is provided in the atmosphere, and the intake hole is formed with a plurality of slits which are formed in the protrusion and are long in the horizontal direction, and an inclined portion and a slope which gradually decrease from the upper surface of the slit toward the inside of the housing. An outdoor switchboard, comprising: a folded-back portion extending substantially downward from a lower end of the portion.