JP2002210000A - Transpiration container - Google Patents

Abstract

(57) [Summary] (Problem corrected) [PROBLEMS] To provide a transpiration container capable of stably evaporating a transpirant such as a fragrance or an insecticide in a transpiration container. When. SOLUTION: The transpiration container 20, wherein a case 21 for accommodating the transpiration agent 1 has a dome-shaped curved inner surface in a cross section, and an opening of the case is sealed with a gas-permeable film 22; A device for evaporating a transpirant, wherein the heating surface for heating the evaporator comprises a curved surface along the dome-shaped curved surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an evaporation container.

[0002]

2. Description of the Related Art As an evaporating device, an evaporating container in which an opening of a case accommodating an evaporating agent is sealed with a gas-permeable film is detachable, and the evaporating agent evaporates by heating the evaporating container from outside the case. There is a device that allows the vapor to pass through the film and dissipate it into the external space. As the internal pressure of the case is reduced by the evaporation of the evaporating agent, the film expands and deforms in a concave shape so as to follow the evaporating agent remaining inside the case.

[0003]

When the case forming the evaporation container has a corner on the inner surface, when the evaporation of the evaporating agent proceeds and the evaporating agent remains only at the corner, the film is pressed at the internal pressure of the case. Even if the pressure is reduced, the film cannot follow the inside of the corner, and the vapor concentration in the case partitioned by this film becomes thin.As a result, it is difficult for the vapor to escape to the outside of the film, and it is difficult to use up the evaporant effectively. is there.

When there is a corner on the outer surface of the case, the corner is hardly deformed due to its rigidity, but only the flat part connected to the corner is dented and deformed by reducing the internal pressure of the case. For this reason, when the evaporation device is provided with a heating unit, the heating conditions applied to the evaporant from the outer surface of the case by the heating unit change (reduction of the heat transfer area, etc.), and there is a difficulty in maintaining stable evaporation. .

It is an object of the present invention to stably evaporate the evaporating agent in an evaporating container.

[0006]

According to a first aspect of the present invention, there is provided an evaporating container, wherein a case for accommodating an evaporating agent has an inner surface formed of a dome-shaped curved surface in a cross section, and an opening of the case is sealed with a gas-permeable film. It was done.

[0007] The "range of the inner surface formed by the dome-shaped curved surface of the case" may cover the entire range of the inner surface of the case or may be limited to a part of the inner surface of the case, for example, the range in contact with the heating surface of the evaporator. What is done may be. Further, the "shape of the inner surface of the case formed of a dome-shaped curved surface" is not limited to a perfect circular surface, an elliptical surface, or the like, and may be any shape having a curved shape.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a vaporizing apparatus 10 has a housing 11 for storing a vaporizing container 20 in a housing 11. As shown in FIG. The container storage 11A has a dome-shaped upper opening, through which the evaporation container 20 is inserted and removed. The bottom surface 11B of the container storage portion 11A is formed into a spherical curved surface or a curved surface, and the lower storage space of the container storage portion 11A is formed so that the cross-sectional area gradually decreases from the convex portion 11C downward. I have. A cap 12 is detachable from the front of the container storage 11A.
Is provided with a circular-shaped fragrance emission port 12A. Further, the evaporation device 10 includes a heating unit 13 having a built-in heat transfer heater 13A in the center of the bottom surface 11B of the housing 11, a plug 14 is provided on the back surface of the housing 11, and the heater 13A and the plug 14 are connected by a lead wire. ing. The plug 14 is used by inserting it into a wall outlet.

[0009] As shown in FIGS.
It is stored in the container storage section 11 </ b> A of the evaporation device 10 and is held by the cap 12. The evaporation container 20 has a case 21 containing the evaporating agent 1 formed in a substantially spherical surface 21A along the bottom surface 11B of the container storage portion 11A without any gap or with a small gap therebetween, and has a rounded dome-shaped curved inner and outer surface. It was assumed to have. Further, the inner surface of the case 21 has a convex surface on the outside and the concave portion 21B is provided on the outer surface of the convex shape, whereby the rigidity of the surface is improved and deformation is further prevented. Also, by providing the concave portion 21B at the center of the surface of the evaporation container 20 and providing the convex portion 11C on the bottom surface 11B of the container storage portion 11A of the evaporation device 10 at a position corresponding to the concave portion 21B,
Even if the transpiration device 10 is turned upside down, the transpiration container 20 can be prevented from falling. The opening 21C of the case 21 is sealed with a gas permeable film 22, preferably a stretchable film 22. The transpiration agent 1 may be a mixture of a perfume (which may be an insecticide or the like), a solvent, and a gelled material to form a gel.

The case 21 has a PET layer (200 μm) as a gas barrier layer and a shape forming layer as an outer layer (an outer surface forming layer of the case 21), and a PE layer as a seal layer with the film 22.
The layer (50 μm) can be formed as a laminate using the inner layer (the inner surface forming layer of the case 21). The case 21 has a PET layer (150 μm) as a shape forming layer as an outer layer, an EVOH layer as a gas barrier layer, a PET layer (150 μm) as a shape maintaining layer, and a seal with the film 22. It may be formed by a laminate having a PE layer as an inner layer.

The film 22 is provided on the outer surface of the extensible PE layer (100 μm) as a gas permeable layer sealed in the case 21 on the outer surface of the PE layer (15
μm), an AL layer (7 μm) as a gas barrier layer, a printing layer, and a PET layer (10 μm) as a printing protection layer. Alternatively, a PP layer as a release layer, an AL layer as a gas barrier layer, a printing layer, and PET as a printing protection layer, which are removed at the time of use on the outer surface of the extensible PP layer as a gas permeable layer sealed in the case 21.
It can be formed by a laminate in which layers are sequentially laminated. Film 22
The PE and PP used as the gas permeable layers in (1) and (2) are unstretched and have stretchability when used.

PET represents polyethylene terephthalate, PE represents polyethylene, EVOH represents ethylene vinyl alcohol, AL represents aluminum, and PP represents polypropylene.

In the transpiration apparatus 10, the housing 11
The evaporating container 20 is exchangeably stored in the container storing portion 11A, and is used by heating the evaporating container 20 from the outside of the case 21 by the heating portion 13 so that the vapor of the evaporating agent 1 that evaporates is transmitted through the film 22. Dissipate into external space. At this time, as shown in FIG. 3, as the internal pressure of the case 21 is reduced by the evaporation of the evaporant 1, the film 22 expands and deforms in a concave shape so as to follow the evaporant 1 remaining inside the case 21.

In the evaporating apparatus 10, the case 21 of the evaporating vessel 20 has an inner surface formed of a dome-shaped curved surface in a cross section and is hardly deformed, and the film 22 follows the inside of the case 21 together with the evaporation of the evaporating agent 1. Because of the elongation and deformation, the contact area between the film 22 and the evaporant 1 becomes substantially constant without much change even when the evaporant 1 is used for, for example, about one month. Therefore, the case 21 is
Case 2 with the container stored in the container storage section 11A
When the initial filling height of the evaporant 1 into the evaporator 1 is, for example, 80 to 90% of the maximum inner height H0 of the case 21 (weight of the evaporant 1 is 5 g), the evaporant 1 is used for about one month, for example. Due to this reduction, the residual head H of the evaporant 1 is maintained at about 60% of the maximum internal height H0 of the case 21, and the amount of heat that the heating unit 13 gives to the evaporant 1 from the outside of the case 21 is maintained substantially constant. In addition, the amount of evaporating agent 1 can be kept constant over time.

At this time, according to the present embodiment, the following operations are provided. (Effect Corresponding to Claim 1) The inner surface of the case 21 constituting the transpiration vessel 20 is substantially spherical.
1A, which is a rounded dome-shaped curved surface, when the evaporating agent 1 evaporates and the internal pressure of the case 21 is reduced, the film 22 can be deformed until it follows the entire inner surface of the case 21. The vapor concentration inside the case 21 partitioned by 22 can be kept high, the amount of evaporation of the evaporant 1 can be kept constant over time, and the entire evaporant 1 can be effectively used up without any excess.

(Action Corresponding to Claim 2) Since the inner surface of the case 21 has an outwardly convex surface and the concave portion 21B is provided on the outer surface of the convex shape, the rigidity of the surface of the case 21 can be increased and deformation can be prevented.

(Action Corresponding to Claim 3) The concave portion 21B of the case 21 is provided substantially at the center of the outer surface of the convex shape. Therefore, the container storage unit 1 in the evaporation device 10
By providing a convex portion 11C corresponding to the concave portion 21B of the case 21 on the bottom surface 11B of 1A, the convex portion 11C and the concave portion 2 are provided.
1B are locked together and the evaporator 10 is turned upside down,
The evaporation container 20 can be prevented from falling.

(Action Corresponding to Claim 4) The heating surface formed by the bottom surface 11B of the container housing portion 11A in the heating portion 13 of the evaporation device 10 is formed by a curved surface along the rounded dome-shaped curved surface of the evaporation container 20. By doing so, stable transpiration such as maintaining a constant contact area (heat transfer area) between the heating unit 13 and the case 21 and maintaining a constant concentration of transpiration agent 1 (intensity of aroma) to the external space. Can last.

As shown in FIG. 5, the evaporation container 30 of the present invention may be one in which the recess 21B is removed from the case 21 of the evaporation container 20 described above.

As shown in FIG. 6, the evaporating device 40 of the present invention has a case 41 composed of an elliptical surface 41A and a flat surface 41B. Heating unit 1
A section having a cross section that is a dome-shaped curved surface formed by the elliptical surface 41A so that the area in contact with the heating surface by No. 3 may be used. Also in this case, a gas permeable film 42, preferably a stretchable film 42
Is sealed.

[0021]

As described above, according to the present invention, the evaporating agent in the evaporating container can be stably evaporated.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an evaporating apparatus.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a cross-sectional view showing a use progress state of the evaporation apparatus.

FIG. 4 is a perspective view showing an evaporation container.

FIG. 5 is a perspective view showing another example of the evaporation container.

6A and 6B show another example of the evaporation container, wherein FIG. 6A is a perspective view, FIG. 6B is a cross-sectional view taken along line BB of FIG. 6A, and FIG. It is sectional drawing which follows the C line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Evaporating agent 10 Evaporating device 13 Heating unit 20, 30, 40 Evaporating container 21 Case 22 Film

Claims (4)

[Claims] 1. A vaporization container in which a case accommodating an evaporating agent has an inner surface formed of a dome-shaped curved surface in a cross section, and an opening of the case is sealed with a gas-permeable film. 2. The evaporation container according to claim 1, wherein the inner surface of the case has an outwardly convex surface, and a concave portion is provided on the outer surface of the convex shape. 3. The evaporation container according to claim 1, wherein the concave portion is provided at a substantially central portion of the outer surface of the convex shape. 4. An evaporating apparatus for evaporating an evaporating agent, wherein the heating surface for heating the evaporating container according to any one of claims 1 to 3 comprises a curved surface along the dome-shaped curved surface of the evaporating container.