JPH02302097A - Cooling structure of communication cabinet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] The present invention relates to a cooling structure for an outdoor cabinet for accommodating a repeater for communication equipment, which can promote air convection inside the cabinet and direct heat inside the cabinet to a horizontal ventilation path. In order to provide a cabinet cooling structure with excellent cooling capacity that can effectively dissipate air, we created a horizontal air passage for ventilation that horizontally crosses the cabinet, which is formed in the ceiling of a cabinet for outdoor installation of communication equipment. , a ventilation means that allows outside air to pass through the horizontal ventilation passage, and a partition member that partitions the horizontal ventilation passage from the inside of the cabinet, and a communication equipment mounting rack that extends vertically inside the cabinet. In the cooling structure of the cabinet, the partition member has an inclined partition part that is inclined vertically at a predetermined angle along the outside air flow direction of the horizontal ventilation passage, and the inclined partition part has a fin extending along the horizontal ventilation passage. A heat dissipating medium is installed inside the cabinet,
The rack for mounting the communication device is provided with a conduit whose lower end is open to the lower part of the cabinet and whose upper end passes through the partition member and faces the horizontal air passage.

[Industrial application field]

The present invention provides a horizontal ventilation passage formed in the ceiling of a cabinet for outdoor installation of a communication device for horizontally crossing the cabinet, a ventilation means for ventilating outside air to the horizontal ventilation passage, and a horizontal ventilation passage and the inside of the cabinet. This relates to a cooling structure for a communication cabinet equipped with a rack for installing a communication device and having a partition member for partitioning the communication device from the inside of the cabinet and extending vertically inside the cabinet.

[Conventional technology]

When installing communication equipment, such as a repeater, in a general cabinet with a rack that extends vertically inside the cabinet and installing it outdoors, it is exposed to harsh rain, wind, snow, etc. Since it is subject to temperature changes, it is considered to have a sealed structure for the cabinet.

However, if the entire area is covered, the heat dissipation performance will be extremely deteriorated, and it will be difficult to maintain the reliability of the operation of the internal equipment, especially in the summer.

For this reason, it is necessary to create a sealed structure so that the internal equipment cannot be directly exposed to rain, etc., and an open structure with ventilation channels that allow heat to escape to the outside. An all-weather cabinet cooling structure that satisfies these requirements at the same time is desired.

In this cabinet cooling structure, there are a horizontal ventilation passage formed in the ceiling of the cabinet that horizontally crosses the cabinet, a ventilation means for ventilating outside air into the horizontal ventilation passage, and a horizontal ventilation passage. A structure including a partition member that partitions the inside of the cabinet is considered. In other words, the horizontal air passage formed in the ceiling allows the heat inside the cabinet to be released to the outside through the partition member, and on the other hand, the inside of the cabinet is isolated from the horizontal air passage by this partition member, so the interior of the cabinet is protected from rain, wind, etc. It is not exposed to. In addition, the horizontal ventilation passages function like an air curtain, preventing the interior of the cabinet from being directly illuminated by the sun, thereby preventing excessive temperature rise.

[Problem to be solved by the invention]

However, even with such an efficient cooling structure, it is still insufficient in view of the harsher usage environment, and there is still room for further improvement. In other words, the inside of the cabinet must be sealed in any case to prevent it from being exposed to rain, etc., so convection of the internal air is promoted to actively promote heat exchange and heat transfer to prevent heat damage to internal electronic components. need to be protected from. In addition, the heat inside the cabinet is diffused to the outside air in the horizontal ventilation passage through the partition member, so heat is transferred from the inside of the cabinet to the partition member, and heat is dissipated from the partition member to the air in the horizontal ventilation passage. It is necessary to create a structure that allows this to be carried out more effectively. Furthermore, regarding the subsequent treatment of rain, etc. that is prevented from entering the inside of the cabinet by the partition member,
In other words, if rain or the like is left as it is, the interior becomes extremely dirty or causes rust, which is undesirable, so it is necessary to properly dispose of these.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a horizontal air passage for ventilation that is formed in the ceiling of a cabinet for outdoor installation of a communication device and that horizontally crosses the cabinet, and a ventilation passage that allows outside air to pass through the horizontal air passage. In a cooling structure for a communication device cabinet, the cooling structure includes a means for separating a horizontal air passage from the inside of the cabinet, and a rack for mounting a communication device extending vertically inside the cabinet, wherein the partition member separates the horizontal air passage from the inside of the cabinet. a slanted partition that is inclined vertically at a predetermined angle along the outside air flow direction, and a heat dissipation medium having fins extending along the slanted partition between the horizontal ventilation path and the inside of the cabinet is provided therethrough; The communication equipment mounting rack is characterized in that it is provided with a conduit whose lower end is open to the lower part of the cabinet and whose upper end passes through the partition member and faces the horizontal air passage.

[For production]

A heat dissipation medium having fins extending along the horizontal ventilation passageway and the inside of the cabinet is installed through the inclined partition part that is inclined vertically at a predetermined angle along the outside air flow direction of the horizontal ventilation passageway, so that the inside of the cabinet is In other words, the warm air inside rises and flows along the sloped partition while being removed with heat by the fins, and as a result of this air flowing without stagnation, convection of the air inside is promoted. In horizontal air passages, outside air flows along the fins, increasing heat dissipation from inside the cabinet. Additionally, air flows through the conduits attached to the rack, which also removes heat from inside the cabinet. Furthermore, rainwater and the like within the horizontal ventilation path are discharged through this conduit.

〔Example〕

The present invention will be explained below based on illustrated embodiments.

FIGS. 1 to 3 show an embodiment of the cooling structure of a communications cabinet according to the present invention, and FIG. 1 is a front view of the entire cabinet with the door (not shown) removed so that the inside can be seen. , FIG. 2 is a cutaway perspective view of the main part of the heat dissipation medium (fin) installed through the inclined partition, and FIG.
I[I] is a cross-sectional view taken along line I and viewed from the direction of the arrow.

Referring to FIG. 1, a horizontal air passage 2 for ventilation is formed in the ceiling of a cabinet 1 for outdoor installation of a communication device so as to cross the cabinet 1 in the horizontal direction. Cooling fans (ventilation means) 3 are provided at both ends of the horizontal ventilation passage 2, and outside air is forcibly drawn in from one end, passes through the horizontal ventilation passage 2 in the direction of the arrow, and flows out from the other end. I am forced to do it.

The horizontal ventilation path 2 and the interior of the cabinet 4 in which communication equipment is installed are separated from each other by a partition plate (partition member) 5, and moisture, dust, dirt, etc. contained in the outside air flowing through the horizontal ventilation path 2 are prevented from entering. The inside of the cabinet 4 cannot be penetrated. Inside the cabinet 4 is provided a communication device mounting rack 6 extending vertically, and a communication device 7 is mounted here.

In addition to the above configuration, the cabinet structure of this embodiment has the following features. That is, the partition plate 5 has inclined partition parts 5a and 5b that are inclined vertically at a predetermined angle along the outside air flow direction of the horizontal ventilation path 2. And these inclined partition parts 5a.

A heat dissipation fin (heat dissipation medium) 8 is provided through 5b.

Note that the cabinet 1 has a bilaterally symmetrical structure with the center as the border, and there is no particular problem in explaining the functions and effects of this embodiment, so the following explanation will be given only to the structure on one side (left side). do.

Here, referring to FIG. 2 in which the radiation fins 8 penetrating through the inclined partition part 5a of the partition plate 5 are clearly shown in perspective, the radiation fins 8 are: flange parts fixed to the inclined partition part 5a; 8a and a large number of trees standing on the upper side (4 in the figure)
It is integrally formed by a flat plate-shaped fin 8b and a large number (four in the figure) of flat plate-shaped fins 8C that similarly stand in a row on the lower side. These fins 8b and 8c extend in the outside air flow direction along the inclined partition 5a, and the fin 8b extends into the horizontal ventilation passage 2, and the fin 8C extends along the inclined partition 5a.
It extends into the cabinet interior 6 through the opening 5 a / of a.

Furthermore, the above-mentioned communication device mounting rack 6 has a hollow space whose lower end is open to the skirt section at the bottom of the cabinet, and whose upper end passes through the partition section 5 (or inclined partition section 5a) and faces the horizontal ventilation path 2. A square pipe (conduit) is installed. It is preferable that this square pipe is used in an unpainted state, for example, with only a plating finish so that the heat from the communication device 7 can be easily transmitted.

With the above configuration, in the cabinet interior 4, high-temperature air warmed by the heat generated from the communication equipment 7 rises upward, and the passage 80' (the third
(Fig. 1) toward the higher inclined partition portion 5a (arrow A in Fig. 1). At this time, heat is gradually removed from the air by the fins 8C, and it finally descends downward (as shown by arrow B). This air convection is extremely important in preventing the temperature rise of the electronic components of the installed communication equipment, and as in this structure, the partition plate 5 (slanted partition part 5a) that constitutes the ceiling of the inside of the cabinet 4 is The slope allows air to flow smoothly without stagnation, promoting convection and effectively cooling the inside of the cabinet 4.

In addition, in the horizontal ventilation passage 2, a passage 8b' between fins 8b extending in the outside air flow direction along the inclined partition part 5a.
(Fig. 3) because the outside air flows along the radiating fins 8.
Heat dissipation from the cabinet interior 4 through the cabinet interior 4 is effectively achieved.

Furthermore, as the outside air flows through the horizontal ventilation path 2, a negative pressure is generated near the upper end of the square vibrator 11 facing the horizontal ventilation path 2, so that air flows inside the square vibe 11 from the bottom to the top. Therefore, the heat from the three communication devices 7 can be diffused into the horizontal air passage 2 through the rack 6 and the square vibrator 11. Also,
This square vibrator 11 functions as a water drain or a rain bucket, and can discharge rainwater, etc. that may accumulate in the horizontal ventilation path 2 to the outside of the cabinet (skirt portion 10).

〔Effect of the invention〕

As described above, according to the present invention, the inside of the cabinet is not exposed to rain, etc., and the convection of the internal air is promoted, and the heat inside the cabinet is effectively dissipated through the horizontal ventilation path, thereby preventing noise and communication equipment installed inside the cabinet. It becomes possible to substantially improve the cooling capacity for. This allows for improved mounting efficiency and miniaturization of devices.

In addition, rainwater that enters the horizontal ventilation can be appropriately treated.
It has great practical value.

[Brief explanation of drawings]

FIG. 1 is an overall front view of an embodiment of the cooling structure for a communication cabinet according to the present invention, FIG. 2 is a cutaway perspective view of the main part of a radiation fin provided through an inclined partition, and FIG. FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 2 and viewed from the direction of the arrow. 1...Cabinet, 2...Horizontal ventilation path, 3
...Cooling fin, 4...Inside of cabinet, 5...Partition member, 5a, 5b...Slanted partition part, 6...Rack for mounting communication device, 8...Radiating fin, 3b, 3c...fin, 11...conduit.

Claims (1)

[Claims] 1. A horizontal ventilation path (2) for ventilation that horizontally crosses the cabinet (1) formed on the ceiling of the cabinet (1) for outdoor installation of a communication device, and a ventilation means for allowing outside air to pass through the horizontal ventilation path (2). (3), a partition member (5) that partitions the horizontal ventilation path (2) and the inside of the cabinet (4), and a rack for installing a communication device (6) that extends vertically inside the cabinet (4). In the cooling structure of the communication cabinet, the partition member (5) is connected to the horizontal ventilation path (
2) has inclined partitions (5a, 5b) that are inclined vertically at a predetermined angle along the outside air flow direction;
5a, 5b) have fins (8b, 8b) extending along them.
A heat dissipating medium (8) having c) is installed in the horizontal air passage (2) and inside the cabinet (4), and the lower end of the communication equipment mounting rack (6) is open to the lower part of the cabinet and the upper end is opened to the above-mentioned rack. A cooling structure for a communications cabinet, characterized in that a conduit (11) is attached that passes through a partition member (5) and faces a horizontal ventilation path (2).