JPS5835400B2 - Ventilator structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ventilator for a storage box for electronic communication devices, etc. installed outdoors, and particularly to a ventilator structure with excellent waterproofness and ventilation function.

Various electronic devices installed outdoors and operated unattended;
In order to protect the device from harsh outdoor conditions, the communication device is normally housed and operated inside a device housing box that is equipped with windproof and rainproof functions.

The box housing the device in this manner is installed, for example, as shown in FIG. 1, with the lower part of the box 1 on the ground, on the roof of a building, on a steel tower, or the like.

During operation of this device, heat is generated inside the box due to heat generated by power loss consumed by internal devices and heat absorbed by the box due to sunlight, which causes abnormal operation of the fruiting device.

Therefore, an intake port 2 is provided at the bottom of the box, and a ventilation port 3 is provided above, for example, at the top of the roof to draw in cold air from outside and exhaust hot air from inside to cool the device.

Conventionally, ventilation outlets have been installed on the side walls of the box body, or on the roof as shown in the figure, but the former has double and triple labyrinth-shaped louvers and fibrous filters to prevent wind and rain from entering. Because natural ventilation is difficult to achieve, ventilation requires a ventilation fan, which is complicated and expensive.

Although the latter is convenient for natural ventilation, it is insufficient to eliminate the intrusion of raindrops, and for this reason, the ventilation flow path usually has a large fluid resistance, making it difficult to ventilate the internal air. It was inconvenient.

Moreover, separate measures had to be taken to install lightning rods.

In view of the above-mentioned problems, the present invention has a ventilator installed in the upper part of the roof with a double structure, and the shape of the intermediate lid body is designed to guide the flow path of rainwater to the farthest part from the opening in the upper part of the roof. It is an object of the present invention to provide a ventilator in which the path is shaped to be the shortest path with the least resistance, and each main part is formed with a member to prevent raindrops from jumping into the inside of the box. a substantially truncated conical fourth lid body having a top opening above the top opening of the generally conical roof of the body to form a space between the lid body and the periphery; A second lid body, which is located in a space facing the opening and the first lid body and whose outer shape is substantially conical, coaxially covers the opening of the roof, and is inside the gap with the periphery of the first lid body. An annular member opening opposite the gap is provided around the roof, and a rising edge and a predetermined area are provided to guide running water toward the petal-shaped protruding end of the approximately petal-shaped recess around the second lid body. It is characterized in that the area is provided with an overflow prevention edge, and the roof, the second lid, and the first lid are respectively connected at predetermined intervals.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The ventilator structure of the present invention will be described below by way of example with reference to the drawings.

FIG. 2 is a side cross-section of a main part of an embodiment of the present invention, and shows a cross-section taken along line A-A' in the third royal view.

FIG. 3 shows a plan view of the second lid body shown in FIG. 2, which will be described later.

Opening 12 at the top of the substantially conical roof 11 of the device storage box
Then, an opening 21 is made at the top at the top of this frontage 12, and the roof board 1 is installed.
10 and a first lid body 20 having a substantially truncated conical outer shape is attached so as to form a space B between the first lid body 20 and the conical surface 10 and a gap C below the peripheral edge 22.

A second lid 30 having a substantially conical outer shape is attached to the opposing space B between the opening 12 of the roof 11 and the first lid 20 so as to cover the opening 12 in plan view.

The second lid body 30 further has approximately petal-shaped protruding ends 31 (in the case of FIG. A rising edge 33 is provided at the end of each of the recesses 32 along the direction of the tip of the protruding end 31.

Furthermore, at the curved part of this recessed part 32, there is an overflow prevention edge 34 that protrudes inward from the lid body 30 and covers the upper part of the rising edge 33.
is added.

At the center of the second lid body 30 is a support part 35 into which a lightning rod 40 protruding upward is inserted and supported, and at the bottom is a curved part 3 for efficiently guiding the exhaust air from inside the device to the outside.
6 is formed, and the support portion 35 penetrates through this curved surface portion 36 to integrate the whole to increase rigidity and strength.

A rim frame 13 that stands up and projects outward is attached to the upper periphery of the roof opening 12, and is slanted downward inside the gap C between the periphery 22 of the fourth lid body 20 on the conical surface. and an annular member 14 that opens facing the gap C.
is formed.

The second lid body 30 is attached to the middle of four bolts C (one bolt is shown in the figure) attached to the frame surface 15 at the periphery of the roof opening 12. Tighten the nut 51 screwed on to fix the installation, and attach the upper end to the first lid body 20.
To install the nut 5, insert it into the hole in the seat and screw it in the same way.
Clamp and fix with 1.

Furthermore, key points around the lower part of the first lid body 20 (only one point is shown in the figure) are attached and fixed to the hardware 16 protruding from the annular member 14 with screws 80.

The roof 11, the first lid 20, the second lid 30, etc. are F
Each is made integrally from RP (reinforced plastic) or the like.

60 is a ventilation fan supported by an arm (not shown) in the opening 12 of the roof.

Further, a net 70 is placed over the opening of the fourth lid 20 to prevent foreign matter from entering.

With the above structure, when it rains, raindrops 90 that enter through the opening 21 of the first lid body flow on the upper surface of the second lid body 30 as shown by the arrow 91, are separated by the recessed part 32, and are directed toward the tip of the protruding end 31 that falls down. The roof 11 is guided by the rising edge as shown by the arrow 92.
and flows out through the gap C to the outside (93).

Heavy rain or rain blown by the wind is prevented by the overflow prevention edge 34 provided in the recess 32 so that almost nothing falls over the recess.

The splashing of some kind of water on the roof 11 is caused by the frame 13.
This prevents entry into the opening 12.

Further, during strong winds and rain, rain 94 blows back onto the roof 11 through the gap C with the fourth lid periphery 22, but in such a case, it is blocked by the opening in the annular member 14 and flows upward. The member 14 blocks the blowing of backflow.

The blown water droplets are prevented from entering the opening 12 by the edge frame 13 as described above.

On the other hand, high-temperature air within the device rises to the top of the roof 11, but this air exits to the space B through the opening 12.

The liquid is then discharged to the outside through the opening 21 of the first lid 20, and the shortest distance to pass through the second lid 30 in between is the recess 3, as shown by the dotted arrow 100.
2 and rise upward in space B.

This is true whether the high-temperature exhaust air rises naturally or is forcibly exhausted by the ventilation fan 60.

As described above, rain from above is removed from the opening 2 of the first lid body 20.
1 and the opening 12 in the upper part of the roof to cover the opening 12, and a petal-shaped protrusion 31 extending further outward from the conical part. rainwater and exhaust air are allowed to fall from the opening 12 to the farthest part, while the exhaust air from inside the device is routed through the recess 32 with the shortest distance between the opening 12 and the opening 21 of the fourth lid, thereby separating rainwater and exhaust air from each other. It is possible to prevent raindrops from entering the device by discriminating them into rational paths.

The lightning rod 40 is grounded with a conductor (not shown), but since the ventilator including the roof is made of an insulator such as FRP, lightning current does not flow through the device, and it is located in the center of the conical roof, making it an optimal location. It can be said that

The net 70 prevents birds, animals, fallen leaves, and other objects from entering the interior.

Note that the ventilator of the present invention includes a bolt 50 and a nut 51.
It can be easily assembled and disassembled using screws 80 and 80.

As described above, the present invention controls the flow of rainwater when ventilating the inside of a device, guides it to the farthest part from the opening to prevent it from entering the device, and also directs rainwater to the shortest distance from the inside. By using a second lid structure with separate flow paths, the ventilator structure can perform exhaust air extremely efficiently, and its practical effects are extremely significant.

The present invention is not limited to the structure of the above embodiments, but the number of petals may be changed appropriately, for example, it may be star-shaped, and the cross-sectional shape may be modified as appropriate.

In addition, the mounting portion of the lightning rod may not be a projection for insertion, and the lightning rod may be mounted on the flat upper surface of the second lid using a screw or the like.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the box housing the device inside, Fig. 2 is a side cross-section of the ventilator according to the present invention attached to the upper roof of the box, and Fig. 3 is the person-to-man figure. cross section,
FIG. 3 is a plan view of the lid shown in FIG. 2. In the figure, 1 is a box body, 2 is an intake port, 3 is a ventilation port (ventilator), 11 is a roof, 12 is an opening, 14 is an annular member, 20 is a first lid, 21 is an opening, and 30 is a second lid body,
31 is a projecting end, 32 is a recess, 33 is a rising edge, 34 is an overflow prevention edge, 40 is a lightning rod, 50 is a bolt, 51 is a nut, 60 is a ventilation fan, 70 is a screen, 80 is a screw, 90 is a raindrop,
100 each indicates an exhaust flow.

Claims (1)

[Scope of Claims] 1. A substantially truncated cone-shaped device having a top opening above the top opening of the substantially conical roof of the device housing box body to form a space between the device housing box body and the roof, and a gap between the periphery and the periphery. a first lid body; a second lid body that is located in a space facing the opening of the roof and the first lid body and has a substantially conical outer shape that coaxially covers the opening of the roof; An annular member is provided on the periphery of the roof inside the gap with the periphery of the first lid body and opens opposite to the gap, and flowing water is directed into the approximately petal-shaped recess around the second lid body. A ventilator comprising a rising edge that guides toward the projecting end and an overflow prevention edge in a predetermined range, and in which the roof, the second lid body, and the first lid body are joined at a predetermined interval. structure.゛