JP3992950B2 - Electrical equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric device used for a data communication network such as a LAN and a WAN, and the like, and more particularly, to an electric device having improved heat dissipation generated from a power unit.
[0002]
[Prior art]
Conventionally, this type of electrical device has multiple shelves in a box-shaped cabinet with a square air inlet in the center of the bottom, and a power unit is mounted on the bottom shelf while printing is performed on each shelf above it. An electronic device such as a board is mounted, and a plurality of exhaust fans are attached to the upper surface of the cabinet or the like in order to exhaust heat generated from the power unit or the electronic device to the outside of the cabinet.
[0003]
[Problems to be solved by the invention]
However, in the conventional electric device, the power unit mounted on the bottom shelf hinders the cooling air sucked from the intake port, so that the power unit and the electronic device cannot be sufficiently cooled, and the local There is an inconvenience that the heat is stored and the power unit and electronic equipment are degraded.
Such a problem becomes conspicuous when the amount of heat generated by the power unit is large.
[0004]
Then, an object of this invention is to provide the electric apparatus which can make favorable dissipation of the heat which generate | occur | produces from a power unit.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a first electric device according to the present invention includes:
An exhaust port provided in Rutotomoni upper surface provided air intake port in the bottom surface of the box-shaped cabinet,
Place the power unit in the cabinet with a gap from the bottom ,
An electronic device is disposed between the power unit and the upper surface part with a gap between them,
Provide a vent hole penetrating in the vertical direction in the horizontal center of the power unit ,
The intake port, the vent hole, and the exhaust port are arranged so that the air flow in the vertical direction between the intake port and the exhaust port passes through the vent hole. .
[0006]
The second electric device according to the first aspect is characterized in that a fan is provided at an upper portion or a lower portion of the through cylinder.
[0007]
The third electric device is characterized in that, in the first or second device, a heat radiating fin extending in the vertical direction is provided on the inner peripheral surface of the cylinder.
[0008]
[Action]
In the first electric device, the through cylinder functions as a passage for cooling air sucked from the intake port and a heat dissipation passage for the power unit.
[0009]
In the second electric device, in addition to the action of the first device, ventilation in the through cylinder is forcibly performed.
[0010]
In the third electric device, in addition to the action of the first or second device, the heat dissipation efficiency of the heat in the case is increased.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a partially cutaway front view showing a first embodiment of an electric apparatus according to the present invention.
In the figure, reference numeral 1 denotes a vertically-long box-shaped cabinet made of a steel plate such as SPCC. The front surface of the cabinet 1 is provided so as to be opened and closed through a door 2.
The cabinet 1 is provided with a rectangular air inlet 3 with an expanded metal (not shown) attached inside at the center of the lower surface, and an exhaust outlet 4 having an exhaust unit 4 having a plurality of exhaust fans (not shown). 5 is provided on the upper surface.
[0012]
On the inner side surface of the cabinet 1, a number of angle-shaped shelf frames 6 are provided in multiple stages so as to face each other.
On the second and higher shelf frames 6, electronic devices 7 such as printed boards are placed. On the first, ie, the lowest shelf frame 7, a power unit (not shown) is accommodated. A box-shaped case 8 is placed.
The case 8 is made of a steel plate such as SPCC. As shown in FIGS. 2 to 5, the case 8 is provided in a closed flat box-shaped case main body 9 and a central portion of the case main body 9, and is an inlet of the cabinet 1. 3 and a cylindrical cylinder 10 that penetrates in the vertical direction, and the case 8 itself has a hollow rectangular cylinder shape.
The case main body 9 has a rectangular parallelepiped frame 11 that is open at the top, bottom, front, and rear, a top and bottom surfaces of the frame 11, and a rectangular vent that covers about 1/3 of the total area at the center. 12a and 13a are provided, and the front and rear side surfaces of the lower panel 12 and 13 and the frame body 11 are closed, and the rear panel 14 is mounted before a breaker, a connection terminal, etc. (all not shown) are mounted. , 15.
In FIG. 1, reference numeral 2 a denotes a knob of the door 2.
[0013]
In the electric apparatus having the above-described configuration, the cooling air sucked into the cabinet 1 from the air inlet 3 as the exhaust unit 4 is operated passes through the cylinder 10 of the case 8 housing the power unit and is dissipated from the power unit. After the heat is absorbed, the heat dissipated from the electronic device 7 at each stage is absorbed, and thereafter, the heat is discharged from the exhaust port 5 to the outside of the cabinet 1.
As described above, in the electric device having the above-described configuration, the through cylinder 10 of the case 8 functions as a path for cooling air sucked from the intake port 3 and a heat dissipation path from the power unit. Therefore, heat generated from the power unit can be dissipated satisfactorily without causing deterioration of the functions of the power unit and the electronic device.
[0014]
FIG. 6 is a schematic perspective view showing a main part of a second embodiment of the electric apparatus according to the present invention.
This electric device is provided with a flat box-shaped case main body 17 in which a case 16 for accommodating a power unit is sealed in the same manner as in the first embodiment, and a central portion of the case main body 17. And a square cylinder-shaped through cylinder 18 penetrating in the vertical direction, and two fans 19 are provided in the upper part of the through cylinder 18.
Other configurations are the same as those of the first embodiment, and thus the description thereof is omitted.
[0015]
In the electric device having the above configuration, the same effect as that of the first embodiment can be obtained, and the cooling air in the through cylinder 18 is forcibly ventilated, so that the heat from the power unit is dissipated. Even better.
[0016]
FIG. 7 is a schematic perspective view showing an essential part of a third embodiment of the electric apparatus according to the present invention.
In this electrical apparatus, a case 20 that houses a power unit is provided in a sealed flat box-shaped case main body 21 and a central portion of the case main body 21 in the same manner as in the first embodiment. A plurality of radiating fins 23 extending in the vertical direction are provided on the inner peripheral surface of the through-cylinder 22.
Other configurations are the same as those of the first embodiment, and thus the description thereof is omitted.
[0017]
In the electric device having the above configuration, the same operational effects as those of the first embodiment can be obtained, and the heat dissipation efficiency of the power unit in the case 20 is enhanced, so that the heat dissipation from the power unit is further improved. It can be carried out.
[0018]
In the second and third embodiments, the case where the fan 19 and the heat radiating fin 23 are individually provided in the through cylinders 18 and 22 has been described. However, the present invention is not limited to this. Both radiating fins may be provided.
By doing in this way, the heat dissipation from a power unit can be performed still more favorably.
Further, the number of fans is not limited to two, but may be one or three or more.
[0019]
【The invention's effect】
As described above, according to the first electric device of the present invention, the through cylinder functions as a passage for cooling air sucked from the intake port and a heat dissipation passage from the power unit. Can be satisfactorily performed.
[0020]
According to the second electric device, in addition to the effects of the first device, ventilation in the through-cylinder is forcibly performed, so that heat generated from the power unit can be dissipated more satisfactorily.
[0021]
In addition, according to the third electric device, the heat radiation efficiency of the heat in the case is enhanced in addition to the effects of the first or second device, so that the heat generated from the power unit can be dissipated better. .
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing a first embodiment of an electric apparatus according to the present invention.
FIG. 2 is a plan view of a case that is a main part of the apparatus of FIG. 1;
FIG. 3 is a front view of the case of FIG. 2;
4 is a right side view of the case of FIG. 2. FIG.
5 is an exploded perspective view of the case of FIG. 2. FIG.
FIG. 6 is a schematic perspective view of a main part showing a second embodiment of the electric apparatus according to the present invention.
FIG. 7 is a schematic perspective view of an essential part showing a third embodiment of the electric apparatus according to the present invention.
[Explanation of symbols]
1 cabinet 3 intake port 5 exhaust port 6 shelf frame 7 electronic device 8 case 10 through cylinder 16 case 18 through cylinder 19 fan 20 case 22 through cylinder 23 radiating fin

Claims (3)

An exhaust port provided in Rutotomoni upper surface provided air intake port in the bottom surface of the box-shaped cabinet,
Place the power unit in the cabinet with a gap from the bottom ,
An electronic device is disposed between the power unit and the upper surface part with a gap between them,
Provide a vent hole penetrating in the vertical direction in the horizontal center of the power unit ,
The intake port, the vent hole, and the exhaust port are arranged so that the air flow in the vertical direction between the intake port and the exhaust port passes through the vent hole. Electrical equipment. The electric device according to claim 1 , wherein a fan is provided at an upper portion or a lower portion of the vent hole . Electrical apparatus according to claim 1 or 2, characterized in that a radiation fin extending in the vertical direction on the inner peripheral surface of the vent.

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