JPH03178510A - Cooling device for switchboard - Google Patents

Abstract

PURPOSE:To improve cooling efficiency by installing a suction type cooling fan to the upper section of an exothermic part in one of a switchboard, in which a box body is vertically divided into two, and mounting a heat pipe, one side of which is projected into the box body and the other side of which to the outside of the box body, to the other of the switchboard. CONSTITUTION:The box body of a switchboard is divided into the box body 7 of an upper section and the box body 6 of a lower section, and the box body 7 of the upper section and the box body 6 of the lower section are communicated on the inside. An exothermic part 4 is set up to one box body such as the lower box body 6 and a cooling fan 5 to the upper section of the part 4 by support plates 3, 3. Heat pipes 9, one sides of which are projected to the inside and the other sides of which are projected to the outside, are penetrated to the upper box body 7, and cooling fins 10 are fitted to the projecting sections on the outside. Air heated by the exothermic part 4 is sucked into the upper box body 7 by the cooling fan 5, is heat-exchanged with the outside air by the heat pipes 9 and is cooled, and is circulated to a lower section and cools the exothermic part 4. The same operation is conducted even when the upper and lower box bodies are reversed. Accordingly, cooling efficiency is improved, and the load-carrying capacity of the exothermic part 4 is increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cooling device for a distribution panel of a wl power supply panel of a large display device, for example.

[Conventional technology]

Figures 3 and 4 are a front view and a side sectional view of a conventional power distribution board, for example, a power supply panel used in a large display device. In the figures, (1) is the box of the power distribution board, and (2) is the door. ,(3)
is a support plate provided inside the box body (1), (4) is a heat-generating component such as a rectifier attached to this support plate, and (5) is a suction type cooling device that is also attached to the support plate. The fan is attached to the upper surface of the heat generating component (4).

Next, the operation will be explained. The heat generating component (4) generates heat due to its negative capacitance. In order to cool the generated heat, a cooling fan (5 rivers) sucks up air from the heat generating component (4) to perform forced cooling.

[Problem to be solved by the invention]

Conventional cooling devices for power distribution boards are configured as described above, and the cooling fan only stirs the internal air, and it is necessary to cool the air inside the box.As a result, the heat-generating parts cannot be cooled sufficiently and the heat-generating parts There were issues such as the inability to increase the load capacity it could handle.

The purpose of this invention is to provide a cooling device for a power distribution board that can directly cool internal air and increase the load capacity of heat-generating components. shall be.

[Means to solve the problem]

The cooling device for a power distribution board according to the present invention has a box that is connected to the first and second
A heat pipe is provided in at least one of the first and second box bodies, with the - side protruding inside the box body and the other side protruding outside the box body, and the heat pipe box body Cooling fins are attached to the externally protruding part of the cooling fin.

[For production]

In the cooling device of the power distribution board for this heat generation, the inside air is directly cooled by the heat pipe, and the load capacity of the heat generating components is increased.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In Fig. 2, (6) is the first box body in which the heat generating component (4) etc. are housed, and (7) is provided on the upper part of this first box body (6). the second communicating with the body (6)
, (8) is the lid attached to the first box (6), (9) is the second lid attached to the second box (7),
One side protrudes into the box body (7), and the other side protrudes outside the second box body (7). - Pipe Oq is a cooling fin attached to the part of the heat pipe (9) that protrudes to the outside of the second box (7).

Note that the other configurations are the same as those of the prior art, so explanations will be omitted.

Next, the effect will be explained. When the air inside the first box (6) is heated by the heat generating component (4) and its temperature rises, it is sucked into the upper part by the suction type cooling fan (5), and is exchanged with outside air by the heat pipe (9). The cooled air in the second box (7) flows downward and enters the first box (6) to cool the heat generating components (4). In this way, the air inside the first box (6) and the second box (7)
The heat-generating component (4) is constantly cooled by circulation between the inside and outside.

In the above embodiment, the heat pipe is shown extending to the side of the second box, but it may also be extended to the rear or top of the second box.

Also, in the above embodiment, the second box body is provided above the first box body, but if the suction type cooling fan is placed above the heat generating component, it may be equipped with a heat pipe. The second box body may be located below the first box body, and the same effect as the above embodiment can be achieved.

〔Effect of the invention〕

As described above, according to the present invention, the box body is divided into the first box body and the second box body, and at least one side of @l or the second box body protrudes into the inside of the box body, A heat pipe is installed on the other side that protrudes to the outside of the box, and a cooling fin is attached to the heat pipe that protrudes to the outside of the box, so the air inside the box is cooled and the heat-generating parts are sufficiently cooled. This has the effect of increasing the load capacity that heat-generating components can handle.

[Brief explanation of drawings]

1 and 2 are diagrams showing a cooling device for a switchboard according to an embodiment of the present invention. FIG. 1 is a front view, and FIG. 2 is a cross-sectional view taken along the line Figures 3 and 4 are diagrams showing a conventional cooling device for a power distribution board, where Figure 3 is a straight view and Figure 4 is a front view of the cutaway side. (4) is a heat generating component, (5)
is the cooling fan, and (6) is the number! The box body (7) is the second box body (9) is a heat pipe, and αO is a cooling fin. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a cooling device for a power distribution board, the box body is equipped with a heat generating component such as a rectifier, and a suction type cooling fan is provided above the heat generating component. At least one of the first and second box bodies is provided with a heat pipe whose one side projects inside the box body and the other side projects outside the box body, and the heat pipe is separated from the box body. A cooling device for a power distribution board characterized by having cooling fins attached to the part that protrudes to the outside.