JPS61132008A - Cooler for closed structural body - 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] [Industrial Application Field] The present invention relates to a cooling device lζ that uses a beat pipe to cool a starter in a closed structure such as a power distribution board or a control board in a sealed or closed state. .

[Conventional technology]

FIG. 8 is a sectional view showing a conventional heat exchange device using a heat pipe, as disclosed in, for example, Japanese Utility Model Application Publication No. 48-79442. In the figure, (l) is high temperature air, (2) is low temperature air, (3) is a plurality of heat pipes, and the heat receiving part (8
a) is high temperature air (inside 17, heat dissipation part (8b) is low temperature air (
Each is placed within the force. (4) is a heat pump (
3) is a partition plate penetrated and supported, and (5) is a fin provided on the outer periphery of the heat pipe (3). As shown in Fig. 4, in this heat exchange device, a portion of the heat pipe (3) on one side of the partition plate (4), that is, a heat receiving portion (8a), is brought into the closed structure (6) and sealed. >y It can also be used as a cooling device. In Figure 4, (7)
is an internal fan, (8) is an external fan, (9) is a frame, and a plurality of heat pipes (3) are arranged in one row and provided in a plurality of rows. Note that A indicates internal air and B indicates external air.

Next, the operation will be explained. The internal air A is heated and its temperature rises due to heat generated by electronic components, electrical equipment, etc. (not shown) housed inside the closed structure (6) such as a closed control panel or a closed electrical room. This internal air A passes through the heat receiving part (3a) of the heat pipe (3) and circulates inside the closed a structure (6) by the internal fan (7). The heat pipe (3) is a container in which a predetermined amount of working fluid is sealed by reducing the pressure inside the container.
is heated by internal air A, the heat pipe (3)
The working fluid inside evaporates while taking heat in the form of latent heat of vaporization, and the vapor passes through the heat pipe (3) to the heat dissipation section (8b).
(to the outside of the containment structure (6)), where it is cooled by the external air B guided by the external fan (8), radiates heat, and liquefies the MM, returning to the original heat receiving part (aa) ( Return to the inside of the closed structure (6).

By repeating such operations, the closed structure (6)
Cool the inside of the unit while keeping it sealed and closed.

[Problem that the invention seeks to solve]

Since the conventional cooling device is configured as described above, the heat receiving part (8a) of the heat pipe (3) and the internal fan (7)
) must protrude greatly into the interior of the closed structure (6), and electronic parts, electrical equipment, etc. cannot be installed on this protrusion, so the internal space of the closed structure (6) cannot be used effectively. There was a drawback that there was no Furthermore, since the heat receiving part (8a) and the heat dissipating part (8b) of the heat pipe (3) are equipped with full-surface fans (7) and (8), the device including the fans (7) and (3) is large. It had the disadvantage of being shaped.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and provides a cooling device that can efficiently cool the device while remaining in a sealed and closed state by effectively utilizing the internal space of the closed structure. The purpose is to

[Means for solving problems]

A cooling device for a closed structure according to the present invention includes a plurality of heat sinks supported through a partition plate ξ for separating internal air and an external cooling medium in a casing attached to a closed structure so that internal air can be introduced. A pipe is installed, and an internal fan and an external fan are installed on one side of the heat receiving part of the heat pipe and one side of the heat radiating part to blow internal air and an external cooling medium, respectively, and on the other side of the heat receiving part of the heat pipe, the heat radiating part is installed. A wind baffle plate is installed opposite at least one of the other sides.

[Effect]

In this invention, the internal air and the external cooling medium are blown to the heat receiving part and the heat radiating part of the heat pipe by the internal fan and the external fan, respectively, and the islands of internal air are transferred to the external cooling medium side due to the vaporization and condensation of the heat pipe. Heat transfer cools the interior of the closed structure.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG. In Fig. 1, αQ is, for example, a casing attached to the side surface of the closed structure (6) so that internal air A can be introduced, and (b) is a casing in which internal air A and external air B are connected inside the casing Q.
The partition plate (2) separates the internal air A from the heat receiving part (1
2a) is a plurality of heat pipes penetrating and supported by the partition plate (2) so that the heat radiating parts (12b) are respectively arranged in the external air B and are arranged parallel to the side surface of the closed structure (6). For example, they have a thin structure with a plurality of them in one row. aa is a fin attached to the heat pipe (2), α( is an internal fan that blows internal air A to, for example, the heat receiving part (12a) of the heat pipe (6), one side of the fin mouth, that is, the lower half, A heat receiving part (12
one of a), i.e. attached opposite to the lower half;
The internal fan α arm is made smaller. (to) is the external air B, for example, the heat dissipation part (12b) of the heat pipe (to),
An external fan blows air to one side of the fin mouth, that is, the upper half, and one side of the heat dissipation part (12b) is attached to the casing αQ.
That is, it is attached opposite to the upper half, thereby reducing the size of the external fan. 06 is an air baffle plate disposed opposite to the other side, that is, the lower half, of the heat dissipation part (12b) of the heat pipe (2). In order to prevent this from happening, the cooling efficiency is increased.

Next, the operation will be explained. Due to heat generated by electronic components, electric equipment, etc. (not shown) housed inside the closed structure (6), the internal air A is heated and its temperature increases. This internal air A is supplied from the internal fan 041 to the casing αQ.
is guided to the lower half of the heat receiving part (12a) of the heat pipe (2) inside the heat pipe (2). After the internal air A passes through the lower half of the heat receiving part (12a) of the heat pipe (2), it changes direction and passes through the upper half of the heat receiving part (12a) of heat vibe 40 again.
It returns to the inside of the closed structure (6) and circulates. When the heat receiving part (12a) of the heat pipe (2) is heated by the internal air intake, the working fluid inside the heat pipe (2) evaporates while removing heat in the form of latent heat of vaporization, and the vapor is transferred to the heat pipe ( 6) into the heat dissipation part (12b) of the heat pipe (2)
move to. On the other hand, the external air fiB is
The heat is guided to the upper half of the heat dissipation section (12b) of the heat pipe (2). After passing through the upper half of the heat dissipation section (12b) of the heat pipe (2), the external air B changes direction, passes through the lower half of the heat dissipation section (12b) of the heat pipe (2) again, and is emitted to the outside. be done. The steam inside the heat pipe (2) cooled by this external air B condenses and liquefies to radiate heat and return to the heat receiving part (12a) of the heat pipe (2). By repeating such an operation, the heat of the islands of the internal air A is transferred to the external air B and is released, cooling the closed structure (6) while remaining in the sealed and closed state. The air conditioning plate QQ is tilted at an angle to the wind flow to prevent the blown outside air B from being taken into the intake outside air B, and the outside air B whose temperature has increased is cooled. Since it does not mix with external air B, it can be efficiently cooled.

In this way, since the internal air A and the external air %B are returned individually and passed through the heat exchange section, the same fin passing wind speed as before can be obtained with half the air volume of the conventional fan, and the fan 04, (to) can be made smaller. Furthermore, since a plurality of heat pipes (2) are provided in one row, a thin cooling device configuration can be obtained.

As a result of the above, a space can be secured in the upper part of the closed structure (6), and this space can be used effectively, and the closed structure (6) can also be made smaller. In addition, the air conditioning plate α
By providing Q, the cooling capacity within the closed structure (6) can be increased.

In addition, as shown in Fig. 2, the other side of the heat receiving part (12a) of the heat pipe (2), that is, the upper half 1ζ, is also tilted opposite to each other and at an angle to the wind flow to straighten the air. Board Q
71 is installed, and the internal air A is sucked in by the internal fan Q3.
lζPrevents the blown-out internal air A from being taken in, and allows the internal air A whose temperature has decreased due to heat removal to be returned to the inside of the closed structure (6) so that it does not mix with the suction internal air A whose temperature has increased. Therefore, it can be cooled even more efficiently.

Also, air conditioning plate αQ.

Although qη is provided in both the lower half of the heat radiation part (12b) of the heat pipe (2) and the upper half of the heat receiving part (12a) of the heat pipe υ, if it is provided in at least one of them, the desired result will be achieved. The purpose can be achieved. In addition, the air conditioning plate Qe.

The number of sub-plates may be appropriately selected depending on the wind flow.

In addition, in the above embodiment, the casing QO is a closed structure (
Although the case in which the casing QO is attached to the outside of the closed structure (6) has been described, it is also possible to have a configuration in which the casing QO is attached to the inside of the closed structure (6), and in this case, further compactness can be achieved.

In addition, in the above embodiment, the casing QO is connected to the closed structure (6
), but the mounting position may be the ceiling, bottom, or rear surface of the closed structure (6), and the same effect as in the above embodiment can be obtained.

It goes without saying that the circulation directions of the internal air A and external air B in the above embodiment may be reversed.

〔Effect of the invention〕

As described above, according to the present invention, the heat pipes, which are supported through the partition plate that separates the internal air and the external cooling medium of the casing, which is provided to introduce the internal air of the closed a structure, are connected in parallel. lζ arrangement, the heat receiving part of the heat pipe,
One side of the heat dissipation part #! II Each one has an internal fan,
An external fan is provided, and an air baffle plate is provided on at least one of the other side of the heat receiving part of the heat pipe or the other side of the heat radiating part to circulate the internal air.

Since the external cooling medium is blown into the heat receiving and radiating parts of the heat pipe to cool the inside of the closed structure, it is thinner and more compact than conventional models, making effective use of the internal space of the closed structure. This has the effect of providing a cooling device that can be efficiently cooled while remaining in a sealed/closed state.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view showing a cooling device for a closed structure according to an embodiment of the present invention, FIG. 2 is a cross-sectional side view showing a cooling device for a closed structure according to another embodiment of the present invention, and FIG. and FIG. 4 are cross-sectional side views showing a conventional cooling device for a closed structure. In the figure, (6) is a closed structure, αq is a casing,
(6) is the partition plate, the mouth is the beat pipe, (12a) is the heat receiving part of the heat pipe, (12b) is the heat dissipation part of the heat pipe, C< is the internal fan, (to) is the external fan, Rabbit, α7 is the air conditioning It is a board. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) A casing attached to the closed structure so that its internal air can be introduced, a partition plate that separates the inside of the casing into the internal air of the closed structure and an external cooling medium, a heat receiving part for the internal air, a heat pipe penetratingly supported by the partition plate so as to be disposed in the external cooling medium and parallel to one side of the closed structure; a heat receiving part of the heat pipe on one side of the casing; An internal fan is attached to the casing opposite to one side of the heat dissipation section of the heat pipe, and the internal fan is attached to the casing to blow the internal air to the heat receiving section of the heat pipe. A closure characterized in that it is equipped with an external fan that blows air to the heat radiating part of the heat pipe, and a baffle plate disposed opposite at least one of one side of the heat receiving part of the heat pipe or the other side of the heat radiating part of the heat pipe. Structure cooling system. (2) A cooling device for a closed structure according to claim 1, wherein the casing is attached to a side surface of the closed structure. (3) A cooling device for a closed structure according to claim 1 or 2, wherein the casing is disposed within the closed structure.