JPS6041528A - Dehumidifier - Google Patents

Abstract

PURPOSE:To increase the dehumidifying effect by radiating the heat absorbed on the heat absorbing side of an electronic cooling element with a metallic heat conductive plate in a dehumidifier having the electronic element utilizing the Peltier effect. CONSTITUTION:An internal case 2, whose upper part 3 is made of metal and whose lower part 4 of a heat insulating material, is arranged in an external case 1, and electronic cooling elements 11a and 11b utilizing the Peltier effect are arranged at the lower part. Heat conductive plates 10a and 10b are arranged vertically in the internal case 2, and jointed to the metallic part 3. In addition, the heating surface of the electronic cooling element is jointed to the lower inner side surface of the heat conductive plates. And cooling fins 12a and 12b are jointed respectively to the cooling surface of the electronic cooling elements and to the upper inner side surface of the heat conductive plates. A heat conductive plate 7 is also furnished at a part of a cooling passage 6 between both cases to conduct the heat of the metallic part 3 of the internal case 2 to the external case 1. The heat radiating effect is consequently increased, and the dehumidifying effect is increased due to the condensation of the moisture in the atmosphere into water by cooling.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dehumidifying device that dehumidifies moisture by condensing it using an electronic cooling element that utilizes the Bertier effect, and aims to improve the heat dissipation effect and the dehumidifying ability.

Generally, a dehumidifier that condenses moisture and dehumidifies using an electronic cooling element that utilizes the Beltier effect is constructed by attaching cooling fins to the cooling surface on the heat absorption side of the electronic cooling element, and radiating fins to the heat generating surface on the heat radiation side. The dehumidifying air is guided through cooling fins to be cooled, and the water vapor contained in the air is condensed into water, which is then discharged to perform dehumidification.

By the way, the dehumidifying capacity of this type of dehumidifying device is determined by how the heat absorbed on the heat absorbing side of the electronic cooling element is radiated. The direction is -1-.

This invention was made with the above points in mind,
The inside of the inner case 7 and A dehumidifying passage and a cooling passage are respectively formed around the entire circumference between the two canes, and a vertical heat conductive plate is provided inside the inner case.
The outer surface of the second part of the heat conductive plate is bonded to the metal material on the inner side of the heat conductive plate, and the heat generating surface of the electronic cooling element utilizing the Beltier effect is bonded to the lower inner surface of the heat conductive plate. Cooling fins and radiation fins are joined to the cooling surface of the electronic cooling element and the upper inner surface of the heat conductive plate, respectively, and AiJ is attached to a part between the outer surface of the inner case and the inner surface of the outer case. The present invention provides a dehumidifying device characterized in that a heat transfer plate is interposed to transfer heat from the inner metal material to the outer case.

Therefore, according to the dehumidifier of the present invention, the double cylinder structure of the outer case and the inner case not only makes it possible to form a dehumidifying passage for dehumidified air and a cooling passage for cooling air, but also allows the electronic cooling element to be formed. The heat from the heat generating surface of the electronic fin can be transferred to the heat dissipation fins and the metal material of the inner case via the heat transfer plate, and the heat of the metal material can be transferred to the outer case 7 via the heat transfer plate. The heat from the heat generating surface of the cooling element can be radiated from the heat dissipation fins, the inner and outer surfaces of the metal material, and the inner and outer surfaces of the outer case, increasing the heat dissipation area and increasing the heat dissipation effect. It can enhance the cooling effect and improve the dehumidification ability.

Next, the present invention will be explained in detail with reference to drawings showing one embodiment thereof.

In the drawings, (1) is a cylindrical vertical outer case 7 with a square cross section, which is made of a metal material with good heat conduction.
2) is a cylindrical vertical inner case with a square cross section formed to have a smaller diameter than the outer case (1), an upper metal cylinder (3) with good heat conduction, and a resin material, Galanu.

It consists of a lower heat insulating cylindrical body (4) made of @thermal material such as mica, and an outer case (1) and an inner case (2) are provided in a double cylinder structure, and the inner case 7 (2) The upper end is placed lower than the upper end of the outer case (1) to form a hood for intake air at the upper part of the outer case (1), and the heat insulating cylinder (4) of the inner case (2) is placed lower than the upper end of the outer case (1). 1) is guided downward from the lower end.

(5) is a dehumidification passage formed vertically inside the inner case (2), and (6) is the inner peripheral surface of the outer case (1) and the inner
The cooling passage (7) is made of a material with good heat conduction and is formed vertically along the entire circumference between the outer circumference of the inner case (2) and the outer circumference of the metal cylinder (3) of the inner case (2). There are four heat transfer plates in the vertical direction that are interposed in a part between the side surface and the inner surface of the outer case (1) by being connected to each other for heat conduction.
As shown in the figure, they are arranged at equal intervals in the cooling passage (6). (8) is provided in the upper part of the outer case (1) and is connected to each of the passages (5) and (6) in FIGS. 1 and 2, respectively.
This is a fan that forcibly forms airflow from the bottom to the top as shown by the arrow in the figure, and a fan guard (9) is provided on the upper end surface of the outer case (1) above the fan (8). There is.

(IOa, ) and (1011) are provided vertically facing each other inside the inner case (2), and their outer surfaces are thermally conductively joined to the left inner surface and right inner surface of the metal cylinder (3). a heat conduction plate, the instruction heat plate (IOa);
(The heat conduction plate (IOa) is formed shorter than the inner case (2).

The lower end of (10b) is almost the same as the lower end of inner case (2).
It is. (lla) and (IIb) are electron cooling elements that utilize the Be I Reche effect, and are surface electron cooling elements (1111
) and (Ilb) are the training hot plate (10a) and (J
The lower inner surface of the ob), namely the training hot plate (LOA)
A heat generating surface is attached to the inner surface of each portion corresponding to the heat insulating cylinder (4) of +010 in a heat conductive manner.

(J2a), (12')) are surface electron cooling elements 1'll&
), (Ilb) cooling fins (1311) thermally conductively joined to the respective cooling surfaces and arranged opposite each other in the lower part of the dehumidification passageway (5).

(131 is a surface electron cooling element (lla), (heat conductive plate cIOa), (IQ+) provided on the outer periphery of III) and cooling 7-in (12a), (121)) for thermal isolation. The heat insulators (+4a) and (+4b) are heat dissipation fins that are connected to the upper inner surfaces of the training heat plates (LOA) and (+OB) for heat conduction, respectively, and are arranged facing each other in the center of the dehumidification passage (5). It is.

0 yen is the upper part of the inner case (2), that is, the dehumidification passage (
5), the surface electron cooling element (11a) disposed on the upper part of the (
llb) drive power supply track, O. is a rectifier diode.

The power supply circuit for smoothing capacitors, etc. and the control circuit for the fan (8) are built into the 1/'l power supply board, and the power supply lance (alternating current of the plow is converted to direct current by the power supply circuit, and the direct current converts both ?ff element cooling elements (ha) and (ub) are driven.In addition, a water receiver is provided on the 1' side of the inner 11111 case (2), and the water receiver is connected to the dehumidification passage (5). A humidity sensor is provided to detect the humidity of the incoming air, and when the humidity detected by the sensor M exceeds, for example, 90%, the fan (8) is driven by the control circuit of the power supply board (10).

Next, the operation of the embodiment will be explained.

First, both electronic cooling elements (+
11. ).

(mark)), the electronic cooling element (r + a),
Both cooling fins (12I) decrease due to the temperature drop of each cooling surface of (+Ill).

While the temperature of (+2b) is lowered, the temperature of both core hot plates (loa) and ('+011) is increased due to the temperature rise of the heat generating surfaces of the electronic cooling elements (+111) and (I 1+), respectively. The heat conductive plate (+011).

The heat of (101,1) is transferred to the metal cylinder body (3) of the inner case (2) joined to the upper part of each and both heat dissipation fins (+
4a) and (+411), and the heat of the metal cylinder (3) is also transferred to the outer case (1) via each heat transfer 4fj and (7).

When the humidity detected by the humidity sensor is 90% or less, the fan (8) is in a stopped state, and in the dehumidifying passageway (5), the internal air flows through the heat radiation fins (+41.).

The dehumidifying passage (5) is Fresh dehumidifying air flows in from below. Therefore,
This incoming air first flows through both cooling fins (12a), (+21
)), the water vapor contained in the air condenses into water, which is collected in a lower water receiver and discharged.
On the other hand, the air from which moisture has been removed becomes dry air and moves upwards to the radiation fins (+<11), (+41+),
It is heated by the metal cylinder (3) and the like, and is discharged from the upper end of the inner case (2) to the outside through the upper part of the outer case (1).

In the cooling passage (6), the internal air is heated by heat from the outer surface of the metal cylinder (3), heat from each heat exchanger plate (7), and heat from the inner surface of the row side case (1). As it expands due to heat and moves upward, new cooling air sequentially flows into the cooling passage (6) from below, and the air is transported by the metal cylinder (3), outer case (1), etc. It is warmed up, moves to one side, and is discharged to the outside from the upper end of the outer case (1).

In this way, when the humidity is low, the inner passage (5), +
In 6), a gentle air flow is generated from the bottom to the top due to natural convection of air, and dehumidification cannot be performed by natural convection operation. Furthermore, at this time, the heat of the outer case (1) is also dissipated from its outer surface, and both electronic cooling S -F C++
The heat from the heat generating surfaces of a, ) and (++b) is transferred to the heat conductive plate (1(Ia)
, (101)) through the radiation fins (+4a), (+4
11) Heat is radiated from the metal cylindrical body (3) and the outer case: y, (]).

Next, when the humidity is high (over 90%), the control circuit starts driving the fan (8), and as mentioned above, air flows from the bottom to the top in the inner passages (5) and +6). Because it is forcibly generated, the amount of air flowing into each passage (5), +6) increases significantly, and the blowing of air to the cooling surface and the heat radiation surface is promoted, and the dehumidifying operation is It quickly approaches and dehumidifies by forced convection operation.

Therefore, according to the embodiment described in mI, both electronic cooling elements (
i + a), (the heat of each heat generating surface of the structure is transferred to a double-core hot plate (
Both heat radiation fins (14a, ) and (101)
), (14[)) and the metal cylinder of the inner case (2) (
3) can transfer heat to the metal cylinder (
3) can be transferred to the outer case (1) through each heat transfer plate (7), and the heat transfer plate (1).

(+01)), radiation fins (14a), (141))
Since heat can be radiated from the inner and outer surfaces of the metal cylinder (3), the heat exchanger plate (7), and the inner and outer surfaces of the outer case (1), the heat dissipation effect and dehumidification ability can be enhanced. .

In addition, in the mJ example, the heat conductive plate (10a), (lol
l) , electronic cooling element (lla), (Ill)), cooling fin (12a), (121) and heat radiation fin (1)
4a) and (1411) are provided, but the same operation can be performed even when there is only one dehumidifying unit.

[Brief explanation of the drawing]

The drawings show one embodiment of the dehumidifying device of the present invention, and FIGS. 1 and 2 are a cutaway front view and a cutaway side view, and FIG. 3 is a cutaway plan view taken along the line A--A in FIG. 1. (1)...outer case, (2)...inner case, (
3)...metal cylindrical body, (4)...insulating cylindrical body, (5)...
...Dehumidification passage, (6)...Cooling passage, (7)--Heat exchange plate, (lOa), (+011)--Heat conduction plate, rua
), (mark)) -Electronic cooling element, 02a), 02b)-
=Cooling fin, (14a), (14I))...radiating fin. Agent Patent Attorney Ryuobe Fujita

Claims (1)

[Claims] ■ A cylindrical unidirectional metal outer cake and an upper part,
A double cylinder structure is provided with a metal material and a cylindrical vertical inner cake whose lower part is made of a heat insulating material, and a dehumidifying passage and a cooling passage are formed inside the inner cake and the entire circumference between the two cakes, respectively. A vertical heat conductive plate is disposed inside the inner case, the outer surface of the heat conductive plate is joined to the metal material of the inner cake, and a Bertier effect is applied to the lower inner surface of the heat conductive plate. The heat generating surface of the used electronic cooling element is bonded, and cooling fins and radiation fins are bonded to the cooling surface of the cooling element and a partial inner surface of the heat conductive plate, respectively, and the outer surface of the inner cake and the outer surface are bonded. A dehumidifying device characterized in that a heat transfer plate is interposed between the inner surface of the case and the inner surface of the case to transfer heat from the metal material of the inner case to the outer case.