JPS60124999A - Cooler - 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] [Technical Field of the Invention] This invention has a heating medium that repeats evaporation and condensation sealed inside, one end of which is a heating section (evaporation section), and the other end of which is a heat dissipation section (
The present invention relates to a cooling device that cools the inside of a closed box such as a control panel using a so-called 1 heat pipe (condensing section).

[Prior art]

Figure 1 is a cross-sectional view showing a conventional cooling device of this type, (1)
is a sealed box that houses electronic parts or electrical equipment (not shown) inside, such as a power distribution board. The mounting plate (4) that closes the opening (1a) made in the ceiling of this airtight box (1) has anomonia inside.

Alternatively, a heat medium such as methyl alcohol is sealed to form a heating part (2a) having heat absorption fins (10m) in the lower half, and a heat radiation part (2a) having heat radiation fins (10b) in the upper half.
A pair of heat pipes (2) forming b) are inserted and supported approximately in the middle 81)-f, and these heat pipes (2) are protected by a protective case (3). (5) is an internal electric fan disposed in the sealed box (1) facing the heating part (2a) of the heat nozzle (2), and (6) is an external electric fan of the prayer transport (1). The external electric fan (7) is arranged opposite to the heat dissipation part (:zb>) of the heat pipe (2), and (7) is the internal electric fan (7).
5), the internal air is blown into the heating part (2a) of the heat pipe (2) and cooled by the cooling effect caused by the evaporation of the heat medium flowing into the heating part (2a);
(8) is external air that is blown onto the heat pipe (2) [sigma]] heat dissipation section (2b) VC by the external electric fan (6), and condenses and liquefies the heated heat medium in the heating section (2a).

Since this conventional cooling system is constructed as described above, the internal air (7) inside the sealed box (1) is heated by the heat generated by the electronic components or electrical equipment contained therein. Temperature rises. Then, this internal air (force) whose temperature has increased is blown onto the heating part (2a) of the heat pipe (2) by an internal electric fan (5), and when the heat medium in this heat pipe (2) is heated, This heat medium evaporates while taking away heat from the internal air (7) that is blown in the form of latent heat of vaporization, and the heat radiation part (2) of the heat;
b) rises to The evaporated heat medium is cooled by the external air (8) blown onto the heat radiation part (2b) by the external electric fan (6), and is condensed and liquefied to the heating part (2a) of the heat pipe (2). However, it is heated by the high-temperature internal air (7) blown onto this heating part (2&) by the internal electric fan (5), and by repeating the above-mentioned operation, the airtight box (
1) It is designed to cool the inside to a predetermined temperature.

However, in the conventional cooling device described above, the heating part (2a) and the hy-heating part (2b) of the heat pipe (2)
The internal electric fan (5) and the external electric fab 6) are arranged so that they are stacked in the thickness direction, so instead of using a heat pipe, which has the disadvantage of increasing the thickness of the cooling device itself, Since the heating part (2a) of (2) protrudes relatively long into the sealed box (1), electronic parts or electrical equipment may not be installed near this protrusion (6). Not only is the installation position restricted, but the heat dissipation part (2b) of the heat pipe (2) also protrudes to the outside of the V-hill closure (1) for a relatively long time, so this is not possible. wealth i-
'11 boxes, iii! The disadvantage is that there are restrictions on the installation of the board itself (2). Furthermore, the heat pipe (2)
Since the anal connection of the CJ, the internal 'electric discharge/ (5) and the external part (6) are made to be white (1 white), the heat pipe (2) o) on the IFi 1 side Disadvantages and conflicts due to uneven wind speed distribution and low cooling efficiency.

[Inplantation of invention]

This was done with a round eye on the point σ ba】[, bright C ↓, and the scale 1 and 1 ji ``))--In accordance with the rule of A, this and the flat I-cho.
1. Arrange the eaves 2.3. Also, set the heating part and heat dissipation part of this heat pipe so that the inner part is t'+l('2'%) so that the air traces in a cascading pattern. , the internal air flow path and the external bad air flow path are each separated by the same number of partition plates, and the internal electric fan and the external air flow path are connected to the internal electric fan and the external air flow path, respectively.
-C, sealed box, i.e. 11□<,
The aim is to convert the i41 board to the IT9 type and to provide a cooling device that improves the cooling effect of the heat pipe.

[Embodiments of the invention]

In other words, Figure 2 shows an extreme example of the invention.
(9) has an internal air flow passage aυ with a narrow depth dimension and an external air γIiL on the external side wall of the dense ~ it convex (1).
】I′! The inner air flow passage 0I) and the outer air flow passage (14 are internal f!lt; vital air (force and external air (8)) flow in a zigzag shape with the Ku/Fugu that formed the L path α4. As shown in FIG.
External air flow]; [A partition wall with the L path 0゛J, and this partition wall 0→ has a heating part (2a) having heat absorption fins (10a).
The heat pipe (n) has a heat dissipation part (2b) with a heat dissipation fin (10b) (・τThe middle part is a sealed box (
1) An insertion support 44 is inserted parallel to the wall surface.

In addition, the internal air flow passage (1υ for internal air 0 (11
al, and the external air outlet (12a
) are each provided with an internal acid rain fan (5) and an external electric fan (6).

Since the cooling device of the present invention is constructed as described above, the internal air (7) inside the sealed box (1) is heated by the heat generated by the troops, sub-components, or electrical equipment housed therein, and the temperature rises. do. Then, this internal air whose temperature has increased (7
) is connected to the internal air flow path Q by the internal electric fan (5).
When the heat medium inside the heat pipe (2) is heated by being sucked into the heat pipe (2) and flowing in a zigzag pattern through this passage, the heat medium evaporates. It evaporates while taking away the heat of the blown internal air (7) in the form of latent heat, and the heat dissipation part (2) of the heat pipe (2)
b) rises to Then, this evaporated heat medium is sucked into the external air flow passage U4 by an external electric fan (6), and the external air (8) moves in a zigzag wave train in this passage.
The heat pipe (2) is cooled by condensation and liquefaction.
The air flows through the heating section (2a) of the
5) allows the air to flow in a zigzag pattern within the internal air flow passage 0υ]
The inside of the sealed box (υ) is cooled to a predetermined temperature by repeating the above-mentioned operations.

In addition, in the above-mentioned embodiment, the heat pipe (2
) and the inner and outer electric fan/(5) (6) in the sealed box (1)
Although we have described the case where it is installed on the side wall of a sealed box (1
) The same effect can be obtained by attaching it to the ceiling or bottom of the room. Furthermore, the heat dissipation part (2b) of the heat pipe (2)
In addition to the external air (8 liters) as in the above-mentioned embodiment, liquid such as water or oil may be used for cooling. A heat pipe (2) is arranged parallel to the negative side of the sealed box (1), and the heating part (2a) and the heat radiation part (2b) of this heat pipe are
), the internal air flow passage Qρ and the external air flow passage θ are each separated by a plurality of partition plates α! so that the internal air (7) and the external air (8) circulate in a zigzag pattern. 10, and an internal electric fan (5) and an external 1! Moving fan (6
), the sealed box (IJ, that is, the control panel is not thin), and as mentioned above, the heat pipe (2) and the internal and external electric fans (5) (6)
An internal air flow passage α formed on the negative side wall of the sealed container (1)
Q: 1: Large and large, electrical equipment can be housed in the external air flow passage (b). The internal air flow passage υ1 and the external air flow passage <1 can be divided into a plurality of partition plates (l◆(depending on the appearance). Therefore, the wind speed distribution around the pipe (2) becomes uniform and the cooling effect -; The miniaturization of is the -ciJ function, which contributes to the cost tau/.

4. Igl +rn's lli'i The explanation in Figure 1 is 1.
Figures d4 and 2, which are cross-sectional views showing a conventional cooling device, are 1+1 cross-sectional views of an embodiment of this redundant 1.

In the figure, (1) is a sealed box, (2) is a heat ζ
Eve, (2a) ld, 'jJll fever +-11, (
2b J i- is the heat dissipation part, (5) is the internal electric fan,
(fi) t: 1 outside 1r, μ electric fan, (7) is internal air, (8) is external air, <911-1 Zosinda, Q
The number is the internal air flow passage, (1111 is the air outlet of the B section, (
11b) is an internal air inlet, O'4 is an external air flow passage, (
12a) is an external air inlet, (12b) is an external air inlet, (1'lt) is a partition plate, and 4 is a partition wall.

The same numbers in the figures indicate the same dimensions or equivalent parts. Representative Patent Attorney Sanro Kimura Figure 1 3 Figure 2 2a

Claims (4)

[Claims] (1) A heat pipe is arranged parallel to one side wall of the sealed box, and the heating part and heat dissipation part of the heat pipe are connected to an internal flow path so that internal air and external air flow in a zigzag pattern. A cooling device characterized in that each of the external air flow passages is partitioned by a plurality of partition plates, and an internal electric fan and an external dynamic fan are respectively disposed in the internal air flow passage and the external air flow passage. (2) The cooling device according to claim 1, wherein an electronic component or an electric device is housed in a sealed box. (3) A heat pipe, an inner and outer box, and a dynamic fan are housed in the internal air flow path and the external air flow path formed by the casing on the outside side of the sealed box [Icing range 8!41 Cooling device as described in section. (4) Cooling according to claim 1, characterized in that an internal electric fan and an external electric fan are provided at the internal air outlet of the internal air θIC trace path 0 and the external air outlet of the external air flow path, respectively. Device.