JPH0244837Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a dehumidifier that effectively utilizes a deliquescent moisture absorbent (hereinafter also referred to as a deliquescent moisture absorbent) such as calcium chloride, and in particular, The present invention provides a dehumidifier suitable for installation in pianos and cars.

(Prior Art and Problems) Dehumidifiers are used in a wide range of fields for purposes such as preventing mold from clothing, furniture, leather shoes, and musical instruments, preserving foods, and preventing rust from precision machinery.

For such uses, deliquescent moisture absorbents, typified by calcium chloride, have very good dehumidifying capabilities such as dehumidifying speed and dehumidifying volume, and are inexpensive.
Furthermore, it is preferably used because of its non-toxic and non-polluting properties.

However, such a deliquescent moisture absorbent deliquesces and becomes a solution when it absorbs a certain amount of moisture, so there are problems in handling such as leakage of this solution. Therefore, there is a need for a dehumidifier that exhibits a high dehumidifying ability without causing any problems in handling the solution resulting from the deliquescence of the moisture absorbent (hereinafter also referred to as deliquescent liquid).

As a countermeasure to this problem, the applicant has developed a breathable and liquid-impermeable sheet, and by incorporating a deliquescent moisture absorbent such as calcium chloride into a container made using this sheet at least in part, Gas (humid air such as water vapor, hereinafter also simply referred to as moisture) passes through the sheet and the moisture is absorbed by the moisture absorbent, and the deliquescent liquid remaining in the container is absorbed by the sheet, which is liquid-impermeable. Therefore, we are proposing a type of dehumidifier that does not leak outside.

However, when such a dehumidifier is installed in a place that vibrates, such as a piano or a car, the deliquescent fluid remaining inside the dehumidifier may impair the acoustics of the piano, or the deliquescent fluid may vibrate and ventilate the dehumidifier. There were problems such as damage to the liquid-impermeable sheet and leakage to the outside.

(Means for solving the invention) As a result of various studies in order to solve the above problem, the inventor of the present invention constructed a dehumidifier with a double structure, and created a gap between the inner container containing the moisture absorbent and the outer container housing the inner container. This led to the proposal of the present invention, in which a vibration isolating material (buffer material) is provided. That is, in the present invention, an inner container containing a moisture absorbent and having at least a portion of its upper surface or side surface covered with a breathable and liquid-impermeable sheet is placed inside an outer container with a partially open opening, and the inner container is placed at the bottom of the outer container. This dehumidifier is characterized in that it is placed and housed on a vibration isolating material laid on the inner surface.

Hereinafter, the present invention will be explained in detail based on the drawings.

FIG. 1 is a structural diagram showing a typical example of the dehumidifier of the present invention, and FIG. 2 is a diagram showing another embodiment of the present invention. In the dehumidifier of the present invention, an inner container 3 having an opening 1 on the upper surface liquid-tightly covered with a breathable and liquid-impermeable sheet 2 is placed inside an outer container 5 having an opening 4 on the upper surface. The inner container 3 is configured to be placed and housed on a vibration isolating material laid on the inner surface of the bottom of the outer container, and a moisture absorbent 7 is built into the inner container 3.

In such a dehumidifier, in order to prevent the moisture absorbent 7 from absorbing moisture before use, a non-breathable film (not shown) such as a gas barrier film may be attached on top of the breathable and liquid-impermeable sheet 2. Typically, the film is removed at the time of use.

According to the dehumidifier as described above, moisture passes through the opening 4 on the top surface of the outer container 5 and the breathable and liquid-impermeable sheet 2 provided on the top surface of the inner container 3, and is absorbed by the moisture absorbent 7. Ru. The moisture absorbent 7 that has absorbed moisture deliquesces and gradually becomes an aqueous solution, which remains above the moisture absorbent 7. However, since the inner container 3 is of a closed type and the sheet 2 provided in the opening 1 is liquid-impermeable, the deliquescent liquid will not leak to the outside. In particular, water retention agents such as water-absorbing polymers, water-absorbing paper, water-absorbing valves, synthetic amorphous silica, synthetic calcium silicate, etc.
It is preferable to use perlite, anhydrite, zeolite, quicklime, silica gel, a gelling agent, etc. in combination to prevent liquid from leaking to the outside even if the packaging material is damaged.

In the present invention, for the members constituting the inner container 3 and the outer container 5, known water-impermeable materials can be used without particular limitation. For example, plastics such as polypropylene, polyethylene, and polystyrene, glass, resin, and paper laminated with non-water-permeable materials are commonly used, but it is best to use transparent materials so that the moisture absorbent stored inside can be seen through. This is preferable because it can be done. The shape of the inner container 3 is generally a tray with an open top surface as shown in FIG. good. Further, the shape of the outer container 5 is not particularly limited as long as it can accommodate the inner container 3 and has an opening 4 for supplying moisture to the breathable and liquid-impermeable sheet 2 of the inner container. For example, a box-shaped container as shown in FIG. 1 is common, but a container with a lid 8 as shown in FIG. 2 is particularly preferably used because the inner container 3 can be easily replaced.

The breathable and liquid-impermeable sheet 2 that covers the opening 1 of the inner container 3 is not particularly limited, but a sheet that exhibits air permeability (moisture permeability) and liquid impermeability during use and generally has micropores is preferred. The size of the micropores may generally be 50μ or less. The breathable and liquid-impermeable sheet 2 having such micropores can be suitably manufactured by, for example, stretching a thermoplastic resin containing an inorganic filler. That is, the above stretched sheet is
Polyolefins such as polyethylene and polypropylene, or thermoplastic resins such as polyvinyl chloride, polyester, and polyamide are made to contain 35% by weight or more, preferably 40 to 85% by weight, of an inorganic filler to obtain a sheet-like product, which is then reduced in volume. Stretching ratio 50-500%,
It is preferably obtained by uniaxial or biaxial stretching in the range of 200 to 400%. The above inorganic filler generally has an average particle size of 0.1 to 100μ, especially 0.5μ.
Calcium, magnesium, with about ~20μ
Oxides and hydroxides of aluminum, silicon, etc.
Inorganic compounds such as salts are preferably used. The thermoplastic resin stretched sheet thus obtained has fine pores and is excellent in air permeability and liquid impermeability. In addition, water-repellent cloth can also be used as the sheet. Note that in this specification, the term "sheet" does not have a strict meaning in terms of thickness, and is a general term including film.

There are no particular restrictions on the manner in which the above-mentioned air-permeable and liquid-impermeable sheet 2 is liquid-tightly coated on the opening 1 of the above-mentioned inner container 3; The opening 1 of 3 is sealed with an air-permeable and liquid-impermeable sheet 2 by means of adhesion, fusing, or the like.

In the dehumidifier of the present invention, it is important to store the above-mentioned inner container 3 in the outer container 5 with the inner container 3 placed on the vibration isolating material 6 laid on the inner surface of the bottom of the outer container 5. This makes it difficult for external vibrations to be transmitted into the inner container 3, thereby preventing damage to the breathable and liquid-impermeable sheet 2 due to the vibration noise of the deliquescent liquid and the vibrations of the deliquescent liquid.

The vibration isolating material 6 described above can be laid on the inner surface of the bottom of the outer container 5, and the inner container 3 can be placed on it.
As long as it is difficult to transmit the vibrations of the outer container 5 to the inner container 3, it can be used without any particular restrictions. For example, felt,
Among sponge bodies, cotton, cloth, etc., felt is particularly preferably used. Further, as a specific embodiment of laying the vibration isolating material 6 on the bottom inner surface of the outer container 5 and placing the inner container 3 thereon, as shown in FIG. In addition to the mode in which the inner container 5 is laid on the bottom inner surface and the inner container 3 is simply placed thereon, the second
As shown in the figure, the vibration isolating material 6 is laid on the inner surface of the bottom of the outer container 5 so that the surrounding area of the bottom side of the inner container 3 is also covered with the vibration isolating material 6. A mode in which it is partially buried is preferably recommended. The latter aspect can effectively prevent vibration transmission to the inner container 3 not only from external vertical vibrations but also from horizontal vibrations.

Further, in the dehumidifier of the present invention, in order to prevent the outer container 5 from moving due to vibration, it is preferable that a non-slip rubber (not shown) and double-sided adhesive tape be provided on the bottom of the outer container 5. Furthermore, a rust preventive agent, a deodorizing agent, a fungicide, an aromatic agent, an insect repellent, a freshness preserving agent, etc. can be used in combination. As a method for retaining these chemicals in the dehumidifier, for example, the above-mentioned chemicals are impregnated into a porous sheet, etc., and the porous sheet is laminated on the upper surface of the breathable and liquid-impermeable sheet 2. Any method may be used without particular limitation.

Further, in consideration of the safety of the container, it is also preferable to provide a lid 8 having a vent (opening) 4 on the top surface as shown in FIG. The lid 8 preferably has a shape having ventilation holes 4 in the side wall, as shown in FIG. 3 (partial front view).

Examples of the deliquescent moisture absorbent 7 used in the present invention include calcium chloride, magnesium chloride, lithium chloride, and the like. In particular, calcium chloride is preferable because it has excellent moisture absorption ability, cost, harmlessness, and non-polluting properties.

(Effects) The dehumidifier of the present invention has a double structure and the inner container is placed on the vibration isolating material laid on the inner surface of the bottom of the outer container and is housed inside the outer container. It's hard to convey. Therefore, it is possible to prevent noise generation due to vibration of the deliquescent liquid and damage to the breathable and liquid-impermeable sheet. Therefore, it is particularly suitable as a dehumidifier inside a piano or a car.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram showing a typical embodiment of the dehumidifier of the present invention, and FIG. 2 is a diagram showing another embodiment of the dehumidifier of the present invention. Moreover, FIG. 3 is a partial sectional view of the lid used in the dehumidifier of the present invention. In the figure, 1 is an opening, 2 is a breathable and liquid-impermeable sheet, 3 is an inner container, 4 is an opening (ventilation hole), 5 is an outer container, 6 is a vibration isolator, 7 is a moisture absorbent, and 8 is the lid.

Claims (1)

[Scope of utility model registration request] An inner container containing a moisture absorbent and having at least a portion of its upper surface or side surface covered with a breathable and liquid-impermeable sheet is placed inside a partially open outer container on the inner surface of the bottom of the outer container. A dehumidifier characterized in that the dehumidifier is placed and housed on a vibration-proofing material.