JPH04308404A - Cooling system for distribution - Google Patents

Abstract

PURPOSE:To obtain a cooling system for distribution panels which prevents the burning of heat generating parts in the enclosure of distribution panels by issuing a signal, such as alarm, etc., when the inside temperature of the enclosure rises from a prescribed value. CONSTITUTION:A temperature sensor 6 is fitted to a prescribed position of an enclosure 1. The sensor 6 generates an alarm, etc., after detecting a temperature rise and lower the inside temperature of the enclosure 1 by opening a door, etc.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a power distribution panel, which is a power supply panel for, for example, a large display device.

0002

2. Description of the Related Art FIGS. 5 and 6 are, for example, a front view and a sectional view showing a conventional cooling device for a power distribution board. In the figure,
1 is a box body, 2 is a door, 3 is a support plate provided inside the box body 1, 4 is a heat generating component, and 5 is a suction type cooling fan.

A conventional cooling device for a power distribution board is constructed as described above. For example, heat generated by the heat generating components 4 is circulated inside the box by the cooling fan 5 and cooled.

0004

[Problem to be Solved by the Invention] Conventional cooling devices for power distribution boards were constructed as described above, so when the internal temperature of the box rose to a certain extent, its cooling capacity reached a saturated state, making it impossible to sufficiently cool the heat-generating components. However, there were problems such as the parts themselves burning out.

[0005] This invention was made to solve this problem, and provides a power distribution board that can protect heat-generating components by generating alarm signals and the like even if the temperature inside the box rises. The aim is to obtain a cooling device for

[0006]

[Means for Solving the Problems] A cooling device for a power distribution board according to the present invention has a temperature sensor attached to a predetermined position of a box body to generate a signal such as an alarm.

[0007] Furthermore, a forced fan is attached to the box near where the heat-generating components are installed, and a one-way ventilation louver is attached to the box at a position facing the forced fan.

[0008]

[Operation] When the temperature of the box rises above a predetermined temperature in the distribution board cooling device configured as described above, the temperature sensor detects this and generates an alarm, etc., and the door is opened or the device is stopped.

[0009] Also, the forced fan is started, and the ventilation louvers are opened to forcibly cool the inside of the box.

0010

[Example] Example 1. 1 and 2 are a front view and a sectional side view showing an embodiment of the present invention, and 1 to 5 are completely the same as the conventional device described above. Reference numeral 6 denotes at least one temperature sensor attached to a predetermined position of the box 1, which detects the temperature inside the box 1 and generates an alarm when the temperature inside the box 1 rises to a predetermined temperature or higher. let

In the distribution board cooling device constructed as described above, the temperature sensor 6 installed at a predetermined position of the box 1 has a temperature monitoring function, that is, when the temperature of the box 1 rises above a predetermined temperature, the temperature sensor 6 The sensor 6 detects this and generates an alarm to notify the surroundings.

[0012] In response to the alarm, the door 2 is opened or the apparatus is stopped to protect the heating element 4 and the like.

Example 2. In the first embodiment, when the temperature of the box 1 rises above a predetermined temperature by the temperature sensor 6 attached to a predetermined position of the box 1, an alarm is issued, the door 2 is opened, the device is stopped, etc. Although the heat generating element 4 and the like are protected, in this embodiment, the heat generating element 4 of the box body 1 is further protected.
A forced fan 7 is installed near the box 1, and a window 8 is provided on the opposite side of the box 1 to which the forced fan 7 is installed.
A one-way ventilation louver 9 is attached to the window part 8 to lower the temperature inside the box body 1. That is, when the temperature sensor 6 generates an alarm, the forced fan 7 is started to forcibly send outside air into the box 1, and the wind pressure of the forced fan 7 causes the air to be attached to the window 8 of the box 1. The one-way ventilation louvers shown in Figure 4(a)
It opens like this to forcibly circulate the inside and outside air, cooling the heating element 4, etc.

[0014]

[Effects of the Invention] Since the present invention is constructed as described above, by attaching a temperature sensor to a predetermined position of the box, the temperature of the box can be detected by an alarm, etc., and the heating element inside can be detected. can prevent fire damage.

Furthermore, by attaching a forced fan to the box and attaching a one-way ventilation louver to the box opposite the forced fan, the temperature inside the box can be lowered.

[Brief explanation of the drawing]

FIG. 1 is a front view showing Embodiment 1 of the present invention.

FIG. 2 is a cross-sectional side view showing Embodiment 1 of the present invention.

FIG. 3 is a cross-sectional side view showing a second embodiment of the present invention.

FIG. 4 is a side view of a one-way ventilation louver showing a second embodiment of the present invention.

FIG. 5 is a front view showing a conventional cooling device for a power distribution board.

FIG. 6 is a cross-sectional side view showing a conventional cooling device for a power distribution board.

[Explanation of symbols]

1 Box body 4 Heat generating parts 5 Cooling fan 6 Temperature sensor 7. Forced fan 9 One-way ventilation louver

Claims (2)

[Claims] Claim 1: A cooling device for a power distribution board, in which a heat generating component such as a rectifier is installed in a box of the power distribution board, and a suction type cooling fan is provided above the heat generating component. A cooling device for a power distribution board, which is characterized by being equipped with a [Claim 2] A forced fan is attached to the box near where the heat-generating components are installed, and a one-way ventilation louver is attached to the box at a position substantially opposite to the area where the forced fan is attached. A cooling device for a power distribution board according to claim 1.