JP2999644B2 - Outdoor installation enclosure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor housing for housing an optical transmission device and a switch used as a relay of a communication network such as an ISDN.

[0002]

2. Description of the Related Art Conventionally, outdoor housings have been used not only in optical transmission devices but also in various fields, but they have a structure for preventing invasion of wind and rain. As an example of a device using such a housing, there is an outdoor small-capacity optical transmission device that distributes a route from a public line to a number of unique terminals such as telephones.

This outdoor type small-capacity optical transmission device includes a housing 40 as shown in FIGS. 10 and 11, and the housing 40 includes a maintenance door 41 having a key portion 41a and a maintenance door 41 having a key portion 41a. It is composed of awnings 43 and 44 attached to the brackets 41b and 41b welded to the side surface of the housing including the door 41 and the top surface with screws 42. Here, 41c is a hole for operating the key portion 41a.

FIG. 12 is a front sectional view of the outdoor small-capacity optical transmission device. A shelf 45 and a power supply 46 are housed in the housing 40. It is supported by two L-shaped brackets 47, and a printed circuit board 48 and the like are housed inside. The power supply 49 has a structure for promoting heat radiation of the high-temperature heating element 51 by the heat radiating plate 50 as shown in FIG.

[0005] The housing 40 is sealed to prevent the invasion of external moisture, dust and the like. Therefore, the heating element such as the power supply 49 and the printed circuit board 48 and the internal air whose temperature has increased due to solar radiation cannot be discharged to the outside of the housing. For the above reasons, the sunshades 43 and 44 are provided as described above in order to block the solar radiation and suppress the rise in the internal temperature.

[0006]

In the above conventional example, the sunshades 43 and 44 are attached to the top surface and the peripheral side surface of the housing 40 as shown in FIG. 14 for the purpose of blocking solar radiation. A bent portion 52 is provided around each of the sunshades 43 and 44 so as to have strength enough to withstand wind and rain. However, the heat inside the housing is
From the viewpoint of radiating heat from the surface, there is a problem in that it has an adverse effect in that it blocks the passage of wind.

Further, since a portion such as the power supply 49 having the high-temperature heating element 51 radiates heat to the air inside the housing 40,
The internal temperature of the housing 40 is significantly increased. Furthermore, since the housing 40 may be installed on a utility pole, the movable range of the repair worker is very narrow, and therefore, only one maintenance door 41 is provided on the front. However, this has a problem that the inner part is very difficult to replace.

An object of the present invention is to solve the above problems, and one object of the present invention is to prevent the flow of air due to heat radiation from the outer wall of the housing and the flow of natural wind. An object of the present invention is to provide an outdoor housing that can block only solar radiation.

Another object of the present invention is to provide an outdoor housing capable of minimizing an increase in the internal temperature of the closed housing.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to an outer surface of a door for opening and closing a side portion, an upper portion and a respective opening of a closed casing body. In addition, in the outdoor installation housing in which a sunshade is arranged with a gap between these outer surfaces, a ventilation hole that does not hinder solar radiation is provided on the surface of these sunshades,
A heat radiating fin is provided on an outer surface of one side portion which is configured to block solar radiation by the sunshade plate, and a heat radiating plate that emits heat generated by a power supply device housed in the housing is provided on the housing of the power supply device. The mounting plate is also used as a mounting plate for the main body, and the mounting plate is closely fixed to an inner wall surface of one side portion provided with the heat radiation fin.

In order to achieve the above object, the present invention is characterized in that a peripheral portion of the sunshade is folded 180 degrees to form a folded portion.

According to another aspect of the present invention, there is provided a shelf for housing a printed circuit board, wherein shielding plates are provided on both sides of the printed circuit board having a high-temperature heating element, and the shelf is provided with the radiation fins. Is fixedly attached to the inner wall surface of one side surface portion provided with.

Further, in order to achieve the above object, the present invention is characterized in that a fan for stirring the air inside is provided in the closed casing body.

[0014]

Therefore, according to the present invention, the heat generated by the heating element, which is a device such as a power supply inside the housing body, is attached to the outside of the housing body from the mounting portion, which is a heat sink, through the housing body. It is efficiently emitted by the radiating fins. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

Further, according to the present invention, it is possible to block only the solar radiation without obstructing the flow of air due to the heat radiation from the outer wall of the housing and without interrupting the flow due to the natural wind.

Further, according to the present invention, it is possible to prevent heat radiation to other printed circuit boards by arranging shielding plates on both sides of the printed circuit board having a high-temperature heating element. The generated heat passes through the housing main body from the shelf and is efficiently released by the radiation fins attached to the outside of the housing main body. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

Further, according to the present invention, the temperature inside the sealed housing can be made substantially constant by stirring the air inside by the rotation of the fan. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view of an outdoor small-capacity optical transmission device showing an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the same.

1 and 2, reference numeral 1 denotes a housing body of an outdoor housing A. The housing main body 1 has upper and lower surface portions 1a,
1b, a left side surface 1c, and a rear surface 1d, and is a box-shaped body having a front portion and a right side portion that are open. A pillar portion 1e is provided at a corner of the boundary between the front opening portion 2 and the right opening portion 3. Is provided. Then, locking portions 6a and 6b are fixed to the pillar portion 1e. The peripheral portions of the opening 2 on the front and the opening 3 on the right side are packing contact portions 2a, 3a.

A battery housing 9 is provided below the lower surface 1b of the housing body 1 with an opening 9a facing the front, and ventilation holes are provided on the left and right side surfaces of the battery housing 9. 9b are formed in plurality.

In the opening 2 on the front of the housing body 1,
A front door 4 is provided with its left edge attached to the left edge of the opening 2 via a hinge (not shown),
The opening 3 on the right side of the housing body 1 has a side door 5
The right side edge of the front door 4 is attached to the right side edge of the opening 3 via a hinge (not shown).
And a packing 7 on the inner peripheral portion of the side door 5.
a, 7b are attached, and the front door 4 and the side door 5 are respectively provided with key portions 8a, 8b.

The front door 4 and the side door 5 are
By turning these key portions 8a, 8b, the locking portions 6a, 6b
And the packings 7a and 7b are brought into contact with the packing contact portions 2a and 3a to close the front opening 2 and the right opening 3.

The front door 4 and the side door 5 are
By rotating these key portions 8a and 8b in the opposite direction to the above to release the locking to the locking portions 6a and 6b, the opening portions 2a and 8b open in opposite directions (double-sided opening) and the front opening portion 2 is opened. And the right opening 3 is opened.

An eyebolt 10 for transportation and a plurality of sunshade mounting brackets 11 are welded to the upper surface 1a of the housing body 1, that is, the top surface.
Further, a top surface shade 12 having an eyebolt relief hole 12a is fixed by a screw 11a.

A side awning 13 is mounted on the side surface of the housing, that is, on the left side, and a side awning 14 is mounted on the front door 4 and the side door 5 in the same manner as the top awning 12, respectively. I have.

As shown in FIG. 9, the side shades 13 and 14 are provided with ventilation holes 15 having openings 15a extending downward, so as to block sunlight and prevent natural wind from passing through. I have. Then, 18 is provided on an end surface around the top sunshade 12 and the side sunshades 13 and 14.
A folding part 16 folded at 0 ° is provided to maintain the strength and not to hinder the flow of the air heated by the outer wall of the housing body 1.

The side awnings 13 and 14 are provided with relief holes 17 for operating the keys 8a and 8b of the front door 4 and the side door 5, and a dedicated handle (not shown) is provided. By turning the key portions 8a and 8b through the escape holes 17, the front door 4 and the side door 5 can be opened in opposite directions as shown in FIG. It has a structure that can be done.

Inside the housing body 1, there is a shelf 1
8. The power supply unit 19 and the fan unit 20 are arranged in this order from top to bottom. This shelf 18
As shown in FIGS. 4 and 5, a stud screw 1f and a nut 1g welded to the inner wall of the housing body 1 allow the left side surface 1 thereof to be moved.
8a is in close contact with the inner surface of the left side surface 1c of the housing body 1, and the right side surface 18b is screwed to an L-shaped fitting 1i welded to the column 1e inside the housing body 1.

A heat shielding plate 22 is welded to the shelf 18 so as to be positioned on both sides of a printed circuit board 21 which is removably inserted into the shelf 18. The printed circuit board 21 on which a high-temperature heating element is mounted is provided. The heat is not affected by the other printed circuit boards 21, and the heat absorbed by the heat shielding plate 22 is conducted to the main body of the shelf 18.

The power supply unit 19 is shown in FIGS.
As shown in the figure, a heat radiating plate 23 is provided on the left side of the housing 19a, so that the heat of the high-temperature heating element 24 such as a transistor is radiated through the heat radiating plate 23. And
The heat radiating plate 23 also serves as a mounting bracket having six mounting holes 25 and is fixed to the inner wall of the left side surface of the housing body 1 in the same manner as the left side surface of the shelf 18.

Further, on the outside of the left side of the housing body 1 to which the shelf 18 and the power supply unit 19 are fixed, as shown in FIGS. 5 and 6, radiation fins 26 are provided via an adhesive having high heat conductivity. It is attached. Therefore, the two portions having the heating elements such as the shelf 18 and the power supply unit 19 can efficiently discharge the generated heat to the outside without conducting the metal components and passing through the air.

The fan unit 20 is connected to the fan 2
The fan 27 flows air in the directions of arrows shown in FIGS. 3 and 4 to agitate the air inside the housing body 1, thereby averaging the temperature inside the housing, and By preventing the high-temperature air from concentrating around the high-temperature heating element 24, the allowable temperature of the printed circuit board 21 and the high-temperature heating element 24 is satisfied.

The battery 28 is used for backup at the time of a power failure.
Battery compartment 9 in separate room provided with ventilation holes 9a for the outside air
It is stored in.

The outdoor housing A constructed as described above is provided with a power pole 32 by fixing a bolt 30 welded to the rear surface of the housing body 1 via a reinforcing metal 29 to a mounting metal 31. Installed on top.

According to the above-described embodiment, openings 2 and 3 are provided on the front and right sides of the housing body 1, and the front door 4 and the right side door 5 for opening and closing these openings 2 and 3 are provided. Side awnings 13 and 14 are provided on each of the outer surfaces and the outer surface of the left side surface of the housing body 1 with a gap therebetween, and the peripheral portions of the side awnings 13 and 14 are folded by 180 degrees to be folded. A part 16 is formed and these side awnings 13, 14
Is provided with a ventilation hole 15 which does not prevent the solar radiation from being blocked, so that only the solar radiation is blocked without obstructing the flow of air due to the heat radiation from the outer wall of the housing and without blocking the flow due to the natural wind. Can be.

Further, a heat radiating plate 23 for emitting heat generated by the heating element 24 of the power supply unit 19 accommodated in the housing is provided.
Since the radiation fin 26 is provided on the outer surface of the left side surface portion 1c of the housing body 1 on which the mounting plate is mounted, the radiation fin 26 is also used as a mounting plate for the power supply unit 19 to the housing body 1. The heat generated by the heat generating element 24 of the internal power supply unit 19 passes through the left side surface 1 c of the housing body 1 from the mounting portion, which is the heat radiating plate 23, and is efficiently emitted by the radiating fins 26 mounted outside the housing body 1. Released. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

Further, a shielding plate 22 is placed on the shelf 18 on both sides of a printed circuit board 21 having a high-temperature heating element.
The shelf 18 is tightly fixed to the inner wall surface of the housing body 1, and the radiation fins 26 are provided on the outer surface of the side surface 1 c of the housing body 1 to which the shelf 18 is in close contact. Heat can be prevented from being released to the other printed circuit board 21 of the body, and the heat generated by the heating element inside the housing body 1 can be transmitted from the shelf 18 to the outside of the housing body 1 through the housing body 1. Heat radiation fins 2 attached
6 to be released more efficiently. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

Since the housing body 1 is provided with a fan 27 for stirring the internal air, the rotation of the fan 27 stirs the internal air to keep the temperature inside the sealed housing substantially constant. can do. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

The front and right sides of the housing body 1 are opened, and a front door 4 is inserted into the front opening 2.
The left edge is attached to the left edge of the opening 2 via a hinge, and the door 5 on the side is inserted into the opening 3 on the right side of the housing body 1, and the right edge of the door 5 is inserted via the hinge. Opening 3
The two doors 4, 5 can be opened and closed in opposite directions because the two doors 4, 5 are opened in opposite directions. It is easy to work on recessed parts without expanding the range. For this reason, maintenance in a narrow place on a telephone pole can be easily performed.

Although one embodiment of the present invention has been described in detail, the present invention is not limited to the outdoor type small-capacity optical transmission device, and it is necessary to suppress the rise in the internal temperature in various device housings installed indoors and outdoors. It can be applied to all the devices with the above.

[0042]

As described in detail above, the present invention is applied to the outer surface of a door that opens and closes a side portion, an upper portion, and an opening of each of the hermetically closed housing main body. In the outdoor installation housing in which the sunshade is disposed with a gap, in the surface portion of these sunshades, a ventilation hole that does not hinder the sunshade is provided, and the sunshade is shielded by the sunshade. A radiating fin is provided on the outer surface of the one side portion, and a radiating plate that emits heat generated by a power supply device housed inside the housing is also used as a mounting plate for the power supply device to the housing main body, Since the mounting plate is tightly fixed to the inner wall surface of one of the side surfaces provided with the radiating fins, heat generated by a heating element as a device such as a power supply inside the housing body is transmitted from the mounting portion as the radiating plate. Heat radiation attached to the outside of the housing through the housing It is efficiently released by fin. For this reason, an increase in the internal temperature of the sealed housing can be minimized.

Further, according to the present invention, the periphery of the sunshade plate is
Since it is folded at 80 degrees to form a folded portion, it does not hinder the flow of air due to heat radiation from the outer wall of the housing,
Only the solar radiation is blocked without blocking the flow due to the natural wind, and the housing body and the radiating fan can be cooled.

Further, according to the present invention, shielding plates are provided on both sides of a printed circuit board having a high-temperature heating element, on a shelf for accommodating a printed circuit board or the like and mounted inside the housing body. Since the heat radiation fins are provided on the outer surface of the side surface of the housing body where the shelf is in close contact, the heat radiation of the high-temperature heating element of the printed circuit board to other printed circuit boards can be prevented. The heat generated by the heating element inside the housing main body is efficiently released from the shelf through the housing main body and by radiation fins mounted outside the housing main body. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

Further, according to the present invention, since a fan for stirring the internal air is provided in the sealed housing body which shuts off the movement of the air to the outside, the internal air is stirred by the rotation of the fan. The temperature inside the sealed housing can be made substantially constant. For this reason, the rise in the internal temperature of the sealed housing can be suppressed to a minimum.

[Brief description of the drawings]

FIG. 1 is a perspective view of an outdoor small-capacity optical transmission device as one embodiment of an outdoor installation housing of the present invention.

FIG. 2 is an exploded perspective view of the outdoor small-capacity optical transmission device.

FIG. 3 is a perspective view of the outdoor small-capacity optical transmission device with a door opened.

FIG. 4 is a sectional view taken along the line UU in FIG. 1;

FIG. 5 is a sectional view taken along the line ZZ in FIG. 4;

FIG. 6 is a sectional view taken along line WW of FIG. 4;

FIG. 7 is a perspective view of a power supply device.

FIG. 8 is a partially cutaway front view of the power supply device.

FIG. 9 is a sectional view taken along line XX of FIG. 1;

FIG. 10 is a perspective view of a conventional outdoor small-capacity optical transmission device.

FIG. 11 is an exploded perspective view of the outdoor small-capacity optical transmission device.

FIG. 12 is a sectional view taken along the line BB of FIG. 10;

FIG. 13 is a partially broken front view of a power supply device according to the related art.

FIG. 14 is a sectional view taken along the line YY in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 4,5 Door 12 Top sunshade 13,14 Side sunshade 18 Shelf 19 Power supply unit 21 Printed circuit board 22 Shielding plate 27 Fan 26 Radiation fin

Continuation of the front page (56) References JP-A-63-78598 (JP, A) JP-A-4-230099 (JP, A) JP-A-4-289391 (JP, A) JP-A-1-239372 (JP) , A) Actually open sho 57-113479 (JP, U) Actually open hei 4-72807 (JP, U) Actually open sho 63-29985 (JP, U) Actually open sho 60-136195 (JP, U) 4-5676 (JP, U) Hikaru 4-96114 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H05K 5/06 H04Q 1/14 H05K 7/20

Claims (4)

(57) [Claims] 1. A sunshade plate is disposed on a side surface, an upper surface, and an outer surface of a door that opens and closes a respective opening of the hermetically closed housing body with a gap from these outer surfaces. in the outdoor installation housing, the surface of these sunshade plate,
In addition to providing ventilation holes that do not block sunlight,
Outside one of the sides, which is designed to block solar radiation with a boom
Power supply housed inside the housing, provided with radiating fins on the surface
A radiator plate for releasing heat generated by the device,
Also serves as a mounting plate for the housing body, and the mounting plate is
A housing for outdoor installation, wherein the housing is closely fixed to an inner wall surface of one side surface portion provided with a component . 2. The peripheral part of the sunshade is folded 180 degrees.
The outdoor installation casing according to claim 1, wherein the folding part is formed by: 3. A shelf for accommodating a printed board is provided with shielding plates located on both sides of a printed board having a high-temperature heating element, and the shelf is closely attached to an inner wall surface of one side face provided with the radiating fins. The housing for outdoor installation according to claim 1 , wherein the housing is fixed. 4. A fan for agitating the air inside the closed casing body.
The housing for outdoor installation according to 1 or 3.