JPS62121618A - Dehumidification element - Google Patents

Abstract

PURPOSE:To prepare a reliable and continuously operable dehumidification element by cooling one face of capillary material on dehumidification side, heating up the other face on the moisture absorption side and evaporating the water content dewing on one face of dehumidification side from the other face of moisture absorption side through the capillary section. CONSTITUTION:The capillary material 1 such as hydrophilic porous material is nipped by the perforated panels 3a and 3b, and the cooling section 2a and the heating section 2b of a Peltier element 2 are connected thermally with the perforated panels 3a and 3b to constitute a dehumidification element. The moisture in the box 4 is dewing on one face of dehumidifying side of the dehumidification element, namely on the perforated plate 3a thermally connected with the cooling section 2a of the Peltier element, and the dewing water moves through the capillary material 1 by capillary force, heated up with the perforated plate 3b thermally connected with the heating section 2b of the Peltier element, and evaporated into the atmosphere.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dehumidifying element used, for example, for storing items that do not want excessive humidity or for dehumidifying the inside of an electronic device housing.

[Conventional technology]

Figure 3 is a cross-sectional configuration diagram showing a conventional dehumidifying element described in, for example, the Toyo Living@) Fully Automatic Electronic Drying Storage pamphlet. In Figure 9, (4) is the inside of the casing where the dehumidifying element is installed, (5) is a desiccant, (6) is a heater, (7) is a shutter inside the refrigerator, and (8) is a shutter outside the refrigerator.

(9) is a timer.

Next, the operation will be explained. In this dehumidifying element,
The timer (9) controls the internal shutter (7), external shutter (8), and heater (6), and dehumidifies and desiccant (5).
) is played repeatedly.

First, when dehumidifying, open the inner shutter (7), close the outer shutter (8), and turn on the heater (6) as shown in Fig.
) is not energized. Therefore, the moisture inside the housing (4) is absorbed by the desiccant (for example, silica gel) (5).

The inside of the refrigerator is maintained at low humidity.

When the dehumidification time has elapsed for a certain period of time, dehumidification is stopped and regeneration of the ν desiccant (5) is started. In that case, close the internal shutter (
Fully close, open the external shutter (8), and energize the heater (6).

The desiccant (5) heated by the heater (6) releases absorbed moisture to the outside air. For example, in the case of silica gel, the regeneration temperature is about 1200°C. Play time is timer (9)
After a predetermined period of time has elapsed, the dehumidification operation will start again.

Although the opening/closing mechanism of the shutter (7) (81) is omitted in FIG. 3, there are mechanisms using a motor and a cam, mechanisms using a shape memory alloy, etc.

[Problem that the invention seeks to solve]

A conventional dehumidifying element is configured as described above.

Since it has moving parts such as a shutter, it is unreliable and the reproducing temperature is high, making it dangerous. Additionally, there were other problems such as the inability to dehumidify continuously.

This invention was made to solve the above-mentioned problems, and aims to provide a dehumidifying element that is highly reliable and capable of continuous operation.

[Means for solving the problem] The dehumidifying element according to the present invention! One surface of the dehumidifying side of the capillary material having a capillary section extending from one surface of the dehumidifying side to the other surface of the moisture absorbing side is cooled, the other surface of the moisture absorbing side is heated, and the moisture condensed on the one surface of the dehumidifying side is removed from the capillary section. The moisture is allowed to evaporate from the other surface on the moisture absorption side.

[Effect J In this invention, the moisture condensed on the cooling side of the capillary material is 1
The capillary force of the capillary material transports it through the capillary section to the heating side, where it is heated and evaporated.

Therefore! By installing a dehumidifying element inside the casing where you want to dehumidify the cooling side, the inside of the casing can be dehumidified continuously.

Embodiment] An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a sectional view showing a dehumidifying element according to an embodiment of the present invention, and in Figure 2, (1) is the dehumidifying side.

That is, it is a capillary material having a capillary section extending from the inside side of the refrigerator to the damp side, that is, to the other side outside the refrigerator, and in this case, it is a hydrophilic porous material. (2) is a Beltier element.

(2a) is the cooling part of the Beltier element, and (2b) is the heating part of the Beltier element. (3aX3b) are perforated plates that are thermally connected to the cooling part (2a) and heating part (2b) of the Bertier element, respectively, and this double perforated plate (3aX3b
) sandwiching the porous material fil. The perforated plate is made of, for example, metal treated to make it hydrophilic.

Next, the operation will be explained.

The moisture inside the casing (41) is located on the inner surface of the dehumidifying element (i.e., on the perforated a (3a) thermally connected to the cooling part (2a) of the Vertier element (21), or on the hydrophilic pores visible through the hole). Condensation occurs on the surface of the material fi+. This condensed water moves inside the porous material (11) toward the outside of the area due to capillary force.

It is heated by a perforated plate (3b) provided on the other side outside the refrigerator and thermally connected to the heating part (2b) of the Beltier element (2), and evaporates into the outside air.

FIG. 2 is a sectional view showing a dehumidifying element according to another embodiment of the present invention, in which a grooved plate portion having a diameter of l# extending from one surface on the dehumidifying side to the other surface on the moisture absorbing side is used as the capillary material.

In the dehumidifying element shown in Fig. 2, the cooling section of the Beltier element (
The cooling part (1) of the grooved plate aQ is cooled by contacting with
Moisture on the surface of 0a) is transported through the condensation groove to the heating part (10b) by capillary force and evaporated.

In addition, in the above embodiment, the capillary material was heated and cooled using a Beltier element, but the invention is not limited to this, and when dehumidifying a large casing, for example, a cooler, a heater, etc. may be used. You can go there.

〔Effect of the invention〕

As above! According to this invention, one surface of the dehumidifying side of a capillary material having a capillary section extending from one surface of the dehumidifying side to the other surface of the moisture absorbing side is completely cooled, and the other surface of the moisture absorbing side is heated to form dew condensation on the one surface of the dehumidifying side. Let the moisture pass through the capillary section and evaporate from the other surface on the moisture absorption side! Since the dehumidifying element is configured without any moving parts, reliability is improved. Ma7
'C.The effect is that continuous operation is possible.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a dehumidifying element according to an embodiment of the present invention, FIG. 2 is a sectional view showing a dehumidifying element according to another embodiment of the invention, and FIG. 3 is a sectional view showing a conventional dehumidifying element. (1) Hydrophilic porous material, (21... Peltier element, (2a)... Cooling part of Hertier element + (
2b)...Peltier element heating section, (3a) (3b)
... Perforated board 1 (lot...Grooved board. In the city map? Same numerals indicate the same or equivalent parts.

Claims (6)

[Claims] (1) Cool the dehumidifying side of the capillary material, which has a capillary section extending from the dehumidifying side to the moisture absorbing side, and heat the moisture absorbing side to remove moisture condensed on the dehumidifying side. The dehumidifying element is configured to evaporate water from the other surface portion on the moisture absorption side through the capillary portion. (2) The dehumidifying element according to claim 1, wherein cooling and heating are performed using a Peltier element. (3) A dehumidifying element according to claim 1 or 2, in which a hydrophilic porous material is used as the capillary material. (4) A dehumidifying element according to claim 2 or 3, wherein a hydrophilic porous material is sandwiched between perforated plates thermally connected to the cooling section and the heating section of the Peltier element. (5) The dehumidifying element according to claim 4, wherein the perforated plate is made of metal treated to make it hydrophilic. (6) Claim 1 in which a grooved plate having grooves extending from one surface on the dehumidification side to the other surface on the moisture absorption side is used as the capillary material.
The dehumidifying element according to item 1 or 2.