JP6398428B2 - Outdoor switchboard - Google Patents

Description

  The present invention relates to an outdoor type switchboard that is installed and used outdoors.

  Conventionally, an outdoor type switchboard installed outdoors is known (for example, refer to Patent Document 1 or 2). FIG. 2 is a side sectional view of a general outdoor type switchboard. As shown in this figure, the outdoor type switchboard 1 is composed of a box-shaped housing including a roof plate 2, a front door 3 </ b> A, a back door 3 </ b> B, and a base channel 4. In the outdoor type switchboard 1, electrical devices including a circuit breaker 5A, a current transformer 5B and a power cable 5C, a control device (not shown), and the like are accommodated.

  A frame-shaped draining frame is usually provided at the periphery of the opening of the housing where the front door 3A and the rear door 3B are installed as a drain structure for preventing rainwater from entering. Packing affixed to the periphery of the back surface of the front door 3A and the back door 3B is brought into close contact with the draining frame to prevent rainwater from entering the inside of the housing from the front door 3A and the back door 3B. . This waterproof structure will be described more specifically with reference to FIG.

  FIG. 3 is an enlarged view of a portion A (roof ridge portion) in FIG. As shown in this figure, a rectangular opening is formed by the frame body frame 6 on the side surface of the housing on the front door 3A side. A draining frame 7 is attached to the periphery (four sides) of the opening by welding or the like, and rainwater that has entered from the front door 3A is prevented from entering the inside of the housing from the opening. Further, a packing 8 is attached to the rectangular peripheral edge (four sides) of the back surface of the front door 3A. When the front door 3A is closed, the surface of the packing 8 contacts the surface of the draining frame 7. It is in close contact. The packing 8 prevents rainwater reaching the draining frame 7 from entering the inside of the housing. The roof ridge portion is provided with a ventilation hole plate 9A in which a large number of ventilation holes are formed and a rain return closing plate 9B.

  As described above, in the conventional outdoor type switchboard, a draining structure such as a draining frame is provided at the peripheral edge of the door of the casing, and the packing is closely attached to the draining structure, so that the door is placed inside the casing. It prevented the ingress of water trying to enter.

JP 2010-81730 A JP2013-94013A

  By the way, if a large amount of rainwater gets into the upper part of the door due to the influence of wind or the like, the conventional drainage structure and the waterproof structure with packing cannot be prevented, and the rainwater that reaches the drainage structure is not protected. On rare occasions, it may have penetrated into the inside of an outdoor switchboard. For this reason, there has been a demand for a structure that can prevent rainwater from entering even in an installation environment where the wind is strong.

  This invention is made | formed in view of the above, Comprising: It aims at providing the outdoor type switchboard which improved the waterproof performance with respect to invasion, such as rain water.

  In order to solve the above-described problems and achieve the object, an outdoor type switchboard according to the present invention is an outdoor type switchboard used outdoors, which is an open / close door provided on a side surface of a box-shaped housing for storing electrical equipment. A waterproof plate for preventing water from entering is disposed above the side surface of the housing and the upper end surface of the door.

  Another outdoor type switchboard according to the present invention is characterized in that, in the above-described invention, the waterproof plate is made of a spring-like plate material that presses and urges the upper end surface of the open / close door in a closed state downward. To do.

  According to the outdoor type switchboard according to the present invention, in the outdoor type switchboard used outdoors, waterproofing for preventing water from entering above the open / close door provided on the side surface of the box-shaped housing for storing the electrical equipment. Since the plate is placed across the side surface of the housing and the upper end surface of the door, it is possible to prevent the intrusion of rainwater at the outer jacket portion of the housing, and the packing state inside the door In addition, intrusion of rainwater into the interior of the housing can be prevented without depending on the surface (sheet metal) accuracy of the draining frame inside the housing. Therefore, according to the present invention, it is possible to improve the waterproof performance against the intrusion of rainwater and the like.

FIG. 1 is a side sectional view showing an embodiment of an outdoor type switchboard according to the present invention. FIG. 2 is a side sectional view showing a conventional general outdoor type switchboard. FIG. 3 is an enlarged view of a portion A in FIG.

  Hereinafter, embodiments of an outdoor type switchboard according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  The outdoor type switchboard according to the present embodiment is a box-like one that is substantially the same as the conventional general outdoor type switchboard 1 shown in FIG. 2, and includes a roof plate, a front door, a rear door, and a base channel. It has a provided housing. FIG. 1 shows an outdoor type switchboard according to the present embodiment, and is a diagram corresponding to the conventional FIG. 3 (part A in FIG. 2).

  As shown in FIG. 1, an outdoor type switchboard 10 according to the present embodiment has a box-shaped housing 12 that houses an electric device (not shown), similar to the conventional roof type switchboard 1 shown in FIG. 3. ing. A roof plate 14 is provided on the upper surface 12a of the housing 12, and a front door 16 (open / close door) is attached to the front surface 12b (side surface) so as to be opened and closed.

  A frame body frame 18 is provided on the inner surface of the housing 12, and the frame body frame 18 forms a rectangular opening on the front surface 12 b of the housing 12. A draining frame 20 is attached to the periphery (four sides) of the opening by welding or the like, and rainwater that has entered from the front door 16 is prevented from entering the inside of the housing 12 from the opening.

  A packing 22 is attached to the rectangular peripheral edge (four sides) of the back surface of the front door 16. When the front door 16 is closed, the surface of the packing 22 abuts against the surface of the draining frame 20. It is in close contact. This packing 22 prevents rainwater that reaches the draining frame 20 from entering the inside of the housing 12.

  In addition, in the roof ridge portion 24 constituted by the roof plate 14 and the front plate 26, a ventilation hole plate 28 in which a large number of ventilation holes are formed, and rain, as in the above-described conventional outdoor type switchboard 1. A return closing plate 30 is provided.

  Here, in the outdoor type switchboard 10 according to the present embodiment, a waterproof plate 32 for preventing water intrusion is provided above the front door 16, and the front surface 12 b of the housing 12 and the upper end surface 16 a of the front door 16. It is arranged across.

  The waterproof plate 32 is a plate material that is bent into a substantially V shape in a side sectional view. One end portion 32 a of the waterproof plate 32 is fixed to the front surface 12 b of the housing 12 above the front door 16 via bolts 34. The waterproof plate 32 is inclined obliquely downward from the position of the front surface 12b in a side sectional view and abuts on the upper end surface 16a of the front door 16 at a substantially central bent portion 32b, and obliquely upwards toward the other end portion 32c therefrom. It extends to. The other end portion 32 c is arranged at a position protruding slightly outward from the outer surface of the front door 16.

  As this waterproof board 32, it is preferable to comprise the upper end surface 16a of the closed front door 16 with the spring-like steel material which presses and urges | biases downward via the bending part 32b. The bent portion 32b that comes into contact with the upper end surface 16a of the front door 16 presses and urges the upper end surface 16a, whereby the adhesion between the bent portion 32b that comes into contact with the upper end surface 16a is improved and the waterproof performance is enhanced. .

  By providing the waterproof plate 32, water reaching the upper end of the front door 16 from the outside is prevented from entering by the waterproof plate 32, and rain water can be prevented from entering the inside of the housing 12. In addition, the other end portion 32c is arranged at a position protruding slightly outward from the outer surface of the front door 16, so that rainwater reaching the waterproof plate 32 protrudes slightly outward from the outer surface of the front door 16. Drops downward from the other end 32c at the position. For this reason, it is possible to avoid the dripped water from adhering to the outer surface of the front door 16 and the upper end surface 16a. Moreover, it can avoid that the other end part 32c interferes with opening / closing operation | movement of the front door 16 because the waterproof board 32 extends diagonally upward toward the other end part 32c from the bending part 32b.

  In this way, it is possible to effectively prevent rainwater from entering the outer cover portion of the housing 12 provided with the waterproof plate 32, and the state of the packing 22 inside the front door 16 being attached, Intrusion of rainwater into the housing 12 can be prevented without depending on the surface accuracy (sheet metal accuracy) of the draining frame 20 at the opening. Therefore, according to this Embodiment, there exists an effect that the waterproof performance with respect to infiltration of rainwater etc. can be improved.

  Further, in the above conventional waterproof structure, as shown in FIG. 3, the ingress of rainwater is finally prevented by the packing 8, but the waterproof performance depends on the state of attachment of the packing 8 and the packing 8. Depends on the surface accuracy (sheet metal accuracy) of the draining frame 7 that hits. When a large amount of rainwater enters from the upper side of the open / close door so as to be engulfed by a strong wind, the waterproof structure with the conventional draining frame 7 and the packing 8 cannot be prevented.

  On the other hand, according to the present invention, the waterproof waterproof plate 32 is disposed across the front surface 12b of the housing 12 and the upper end surface 16a of the front door 16, so that rainwater Intrusion of rainwater into the housing 12 can be prevented in a manner that does not depend on the state of attachment of the packing 22 or the surface accuracy (sheet metal accuracy) of the draining frame 20. Can do.

  In the above embodiment, the case where the front door is used as the opening / closing door has been described as an example.However, the present invention is not limited to this, and the rear door provided on the rear surface of the housing, It is also possible to apply to a side door provided on the right side surface, and in any case, the same effect as the above embodiment can be achieved.

  As described above, according to the outdoor type switchboard according to the present invention, in the outdoor type switchboard used outdoors, water intrudes above the open / close door provided on the side surface of the box-shaped housing for storing electrical equipment. Since the waterproof plate for preventing water is disposed across the side surface of the housing and the upper end surface of the door, it is possible to prevent the intrusion of rainwater in the outer cover portion of the housing, and the inside of the door Intrusion of rainwater into the housing can be prevented in a manner that does not depend on the pasting state of the packing or the surface (sheet metal) accuracy of the draining frame inside the housing. Therefore, according to the present invention, the waterproof performance against the intrusion of rainwater and the like can be enhanced.

  As described above, the outdoor type switchboard according to the present invention is useful for an outdoor type switchboard that is installed and used outdoors and the like, particularly in the vicinity of the upper end of an open / close door, to improve the waterproof performance against intrusion of rainwater and the like. Is suitable.

DESCRIPTION OF SYMBOLS 10 Outdoor type switchboard 12 Case 12a Upper surface 12b Front (side surface)
14 Roof plate 16 Front door (open / close door)
16a upper end surface 18 frame body frame 20 draining frame 22 packing 24 roof roof portion 26 front panel 28 vent hole plate 30 closing plate 32 waterproof plate 32a one end portion 32b bent portion 32c other end portion 34 bolt

Claims (1)

In outdoor type switchboards used outdoors,
A waterproof plate for preventing the ingress of water is disposed across the side surface of the housing and the upper end surface of the door above the open / close door provided on the side surface of the box-shaped housing for storing electrical equipment. ,
The waterproof plate is made of a spring-like plate material bent in a substantially V shape in a side sectional view, and one end portion of the waterproof plate is fixed to a side surface of the casing above the open / close door. The door in a closed state is inclined obliquely downward in a side sectional view from the opened position, abuts on the upper end surface of the door at the bent portion, and extends obliquely upward from the bent portion toward the other end portion. The upper end surface of the door is pressed and urged downward via the bent portion, and the other end portion is prevented from interfering with the opening / closing operation of the open / close door by extending obliquely upward from the bent portion toward the other end portion. An outdoor type switchboard characterized by

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