JPH07322798A - Heat-transpiring device for chemical - Google Patents

Abstract

PURPOSE:To carry out effective chemical transpiration prevented from contamination with the deposition of the chemical in a heat-transpiring device for chemicals. CONSTITUTION:A cover 2 having a transpiration opening 17 at the top is placed on the device body 1 so that cover overlays a loading place 8 to from a heating chamber 18 above the loading place 8. Vent holes 10 for taking in the outer air are opened in the device body 1 and an upright space 13 is opened all over the side face of a heater 5 to from air-passing space 19 from the vent holes 10 through the upright space 13 to the heating chamber 5. When a chemical containing material is placed on the loading place 8 and heated with the heater to effect transpiration, the transpired chemical is lapped with the air flowing up through the air-passing space 19 and sent to the transpiration opening 17 and transpired to the outside. Thus, the deposition of the chemical onto the device body 1 and the inside of the cover can be inhibited to avoid the contamination and the desired transpiration effect can be maintained.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a drug heating evaporation device using a drug-containing body for heat evaporation, and more specifically, for the purpose of insecticidal, sterilizing, acaricidal, insect repellent, repellent, aroma, deodorant, etc. The present invention relates to a drug heating evaporation device with enhanced safety and drug efficacy in which a drug-containing body containing a drug alone or a drug or a drug together with a solvent or an additive is placed and heated and evaporated.

[0002]

2. Description of the Related Art As a conventional chemical heating and evaporation device, as shown in Japanese Utility Model Publication No. 57-57593, 4 mm or more above a mounting portion for mounting a chemical containing body provided on a heating element.
It is known that a plurality of grids are provided so as to have an insertion gap of 15 mm, and at least one of the grids is brought close to the mounting portion.

As disclosed in Japanese Utility Model Publication No. 53-23676, a hemispherical lid having a large number of evaporation holes is provided above a heating element provided in a housing, and a supporting piece is provided in the center of the inside of the lid. It is known that when the lid is closed, the support piece comes into contact with the mat, which is the drug-containing body, placed on the heating element to fix the mat.

Further, as shown in JP-B-48-6452, JP-B-45-20539 and JP-B-43-2049, a substantially flat intermediate body is provided around the heating element inside the case to generate heat. It is known that a lid having evaporation holes is provided on the upper part of the case above the body.

Further, as shown in Japanese Utility Model Laid-Open No. 61-110287, an air inlet having a specific opening area for sucking outside air from a position lower than the heating portion is provided on the body, and
It is known that an air discharge port with a specific opening area is provided for discharging the air that has been sucked into the body and heated to become a hot air flow from the rear edge of the heating unit toward above and in front of the heating unit. Has been.

[0006]

[Problems to be Solved by the Invention] Conventional Utility Model Sho 57-5
In the one described in Japanese Patent No. 7593, when the medicine heating evaporation device is tilted or tilted, the drug-containing body placed on the placing portion pops out of the medicine heating evaporation device and there is a risk of accidental ingestion of infants and the like. there were. Moreover, since the lattice is provided in the vicinity of the upper part of the heating element, it is necessary to use those members having high heat resistance, which causes a cost increase, and the portion of the lattice becomes extremely hot. There was a risk of causing burns. In addition, there is a problem that the evaporated drug is apt to adhere to the lattice, resulting in contamination due to the adhesion of the drug and the desired drug evaporation effect cannot be obtained. Furthermore, the work of attaching and detaching the drug-containing body to and from the drug heating evaporation device has a problem that the operability is very poor because the insertion gap is small.

Further, in the one disclosed in Japanese Utility Model Publication No. 53-23676, since the drug evaporated from the drug-containing body easily adheres to the support piece and the lid, the drug heating evaporation device is easily contaminated and the drug There was a problem that the desired transpiration effect of the drug could not be obtained because transpiration could not be performed well.

Further, also in those disclosed in JP-B-48-6452, JP-B-45-20539 and JP-B-43-2049, the drug evaporated from the drug-containing body is stored in the drug heating evaporation device. There is a problem in that it tends to become muffled, and that contamination due to the attachment of the drug and the desired drug evaporation effect cannot be obtained.

Further, in the one disclosed in Japanese Utility Model Laid-Open No. 61-110287, since the air is discharged from the rear end edge of the heating portion toward the upper side and the front side of the heating portion, it is limited to the uneven ventilation, and the body is further limited. The outside air inhaled from a position lower than the heating part is made to flow in from the upper part of the heating part, and the vaporized drug may wrap around due to insufficient ventilation from the heating element gap,
There is a problem that a turbulent flow is likely to occur on the heating unit, and the evaporated drug is likely to adhere to the inside of the drug heating evaporation device, and it is difficult to obtain the desired drug evaporation effect.

[0010]

In a chemical heating evaporation device, a cover body having evaporation holes is provided on an upper part of an apparatus main body so as to substantially enclose the mounting portion, and a heating chamber is formed above the mounting portion. At the same time, a ventilation hole for taking in outside air is provided in the main body of the apparatus, and a vertical gap is provided over substantially the entire side surface of the heating element so that the heating chamber is passed through the ventilation hole through a substantially circumferential side surface of the heating element. A ventilation space is formed to reach.

[0011]

[Operation] Air flows in from the ventilation hole provided in the main body of the device, and the air flows into the ventilation space that reaches the heating chamber from the ventilation hole through the gap provided over almost the entire side surface of the heating element,
This air is heated by the heating element in the heating chamber and wraps up the drug evaporated from the drug-containing body to flow to the evaporation hole in the upper part of the cover body, and the drug evaporated from the drug-containing body is evaporated. Evaporate to the outside through the holes.

[0012]

[Examples] The first embodiment of the drug heating evaporation device according to the present invention will be described. As shown in FIGS. 1 and 2, the drug heating evaporation device is composed of a device body 1 and a cover body 2. The apparatus main body 1 is hollow from an upper main body 3 and a lower main body 4, and a heating element 5 is attached to the inside thereof. More specifically, the lower body 4 is provided with a heating element support leg 6 in the upper center thereof, and a heating element 5 is mounted on the heating element support leg 6, and the upper surface of the heating element 5 is attached to the drug-containing body 7. Is used as the mounting portion 8 for mounting the mat. The lamp 9 is mounted on the upper part of the lower body 4 at a predetermined position, and a plurality of vent holes 10 for taking in outside air are provided in the lower surface of the device body 1, and a plurality of vent holes 10 are also provided on the side surfaces thereof. It is provided.

The upper body 3 is provided with an opening 12 at the center thereof, and when fitted with the lower body 4, the opening 12 is formed.
The heating element 5 is located inside, and the opening 12 has a predetermined gap between the heating element 5, the mounting portion 8 and the drug-containing body 7 mounted on the mounting portion 8. The size is set so that the gap 13 that extends vertically is provided over the entire circumference of the side surface of the heating element 5 and the like. The upper main body 3 is provided with a lamp cover 14 at a position facing the lamp 9 mounted on the lower main body 4, a switch 15 is also provided, and an internal ventilation hole is provided on the outer peripheral side of the opening 12 on the upper surface thereof. A plurality of 16 are provided so that the inside of the apparatus body 1 and the upper side thereof communicate with each other.

On the other hand, the cover body 2 has a hemispherical shape and has a transpiration hole 17 in the upper center portion thereof, and has a plurality of openings 12 provided in the mounting portion 8 and the upper body 3 and a plurality of holes provided in the upper body 3. The ventilation hole 16 is substantially enclosed, and one end of the ventilation hole 16 is attached to the upper main body 3 of the apparatus main body 1 so as to be opened upward from the other end side. The evaporation hole 17 is smaller than the surface area of the drug-containing body 7 placed on the placing portion 8 and has a size such that a human finger or the like is difficult to enter.

As described above, in the drug heating evaporation device, the heating chamber 18 is formed by the cover body 2 above the placing portion 8 on which the drug containing body 7 is placed, and is provided on the lower surface of the lower body 4. Vent 10 and vent 1 on the side
A ventilation space portion 19 is formed from 0 to the heating chamber 18 via a vertically extending gap 13 provided over the entire circumference of the side surface of the heating element 5 or the like. A ventilation space 20 is also formed from the ventilation hole 10 to the heating chamber 18 through the in-container ventilation hole 16.

With this structure, the following operational effects can be obtained. The drug-containing body 7 placed on the placing unit 8
When the substance is heated by the heating element 5, the drug evaporates from the drug-containing body 7. At this time, the vent hole 10 provided in the lower main body 4 is used.
The air flows in further, and the heating chamber 18 passes through the gap 13 provided from the ventilation hole 10 all around the side surface of the heating element 5 or the like.
The air flows into the ventilation space 19 up to and the heat of this air rises in the heating chamber 18 by the heating element 5 and wraps up the drug evaporated from the drug-containing body 7. It comes to flow to the hole 17. Further, from the ventilation hole 10 provided in the lower body 4 to the ventilation hole 16 in the device.
The air also flows into the ventilation space 20 reaching the heating chamber 18 via the air, and the air rises in the heating chamber 18 and flows along the inner peripheral surface of the cover body 2 to the evaporation hole 17 in the upper portion. A clean air layer is generated along the inner peripheral surface of the cover body 2. Thereby, the drug-containing body 7
The more transpirationd drug is wrapped in the air flowing from the ventilation space 19 toward the transpiration hole 17 of the cover body 2 and evaporates to the outside through the transpiration hole 17, so that the drug inside the cover body 2 is evaporated. It is possible to evaporate from the evaporation hole 17 to the outside without staying in the heating chamber 18, and to prevent the drug from adhering to the inside of the device for heating and evaporating the drug to prevent contamination and to obtain sufficient drug evaporation. The drug transpiration effect of is obtained.

Further, the heating chamber 18 is provided by providing the cover body 2.
By forming the above, the structure is less likely to be affected by the flow of the outside air in the vicinity of the placement portion 8 on which the drug-containing body 7 is placed, and the generation of turbulent flow due to the flow of the outside air is significantly reduced. Therefore, it is possible to favorably evaporate the drug. Moreover, since the heat retaining property in the vicinity of the placing portion 8 is improved, the drug-containing body 7 can be evaporated by heating the drug-containing body 7 at a relatively low temperature, and thermal decomposition of the drug in the drug-containing body 7 is suppressed. As a result, the evaporation efficiency is increased, and the desired drug evaporation effect can be obtained with the minimum necessary amount of drug.

Further, the cover body 2 has a structure that substantially encloses the heat generating body 5, does not easily touch the heat generating body 5 and the drug-containing body 7 placed on the heat generating body 5, and there is a risk of burns or the like. Can be eliminated. Further, since the evaporation hole 17 is smaller than the surface area of the drug-containing body 7 placed on the placing part 8, the drug-containing body 7 does not pop out even if it falls or is tilted. It has a child-proof mechanism that eliminates the risk of accidental eating.

Further, even if detergent, soy sauce, oil or the like is applied to the chemical heating evaporation device during use, the heating element has a structure such that it is unlikely to be directly applied to the heating element, so that deterioration of the elements of the heating element 5 and occurrence of short circuit are prevented. be able to.

Further, when the drug-containing body 7 is attached to or detached from the placing portion 8, a large space appears when the cover body 2 is opened, and the attaching and detaching work can be easily performed, and the operability is good.

Next, specific conditions of each part in the above-mentioned first embodiment will be described. For example, length 21mm, width 3
When the mat type drug-containing body 7 having a thickness of 5 mm and a thickness of 2.3 mm is heated to evaporate the drug, the shape of the evaporation hole 17 is not particularly limited, but in the case of a circular evaporation hole, the diameter is 10 mm.
The opening is performed as described above, and the diameter is preferably 12 mm to 3
0 mm, more preferably 14 mm to 26 mm in diameter
Open with. In other words, the opening area is 78.5m
m ² or more, preferably 113.0 mm ² to 706.5
mm ^2, more preferably, from 153.9mm ² 53
It is desired to be 0.7 mm ² . In other words, the opening area of the evaporation hole 17 is 10 times the upper surface area of the drug-containing body 7.
% Or more, preferably 15% to 96%, more preferably 20% to 72%. Further, the shape of the evaporation hole 17 is not limited to a circular shape, but may be an elliptical shape, a rectangular shape, a petal shape or the like. The distance from the upper surface of the heating element 5 to the evaporation hole 17 is 7 mm to 50 mm, more preferably 15 mm.
To 25 mm. The total opening area of the ventilation holes 10, that is, the total opening area of the ventilation holes 10 provided on the lower surface of the lower main body 4 and the ventilation holes 10 provided on the side surfaces thereof is required to be at least ½ or more of the opening area of the evaporation holes 17. 50mm ² to 1
200 mm ² is suitable, and more preferably 100 mm ² to 500 mm ² . Ventilation area to the heating chamber 18,
That is, the total opening area of the space 13 extending in the vertical direction and the in-container ventilation hole 16 provided over the entire circumference of the side surface of the heating element 5 or the like needs to be at least ½ of the opening area of the evaporation hole 17 or more and 50 mm ² to 1200 mm ^2. Is suitable, and more preferably 100 mm ² to 500 mm ² . Appropriate conditions can be set by combining these various conditions.

Further, in the above-mentioned chemical heating evaporation device,
Part of which is heated with a thermochromic material that reversibly changes color at any temperature within the range of 30 ° C to 140 ° C, preferably 35 ° C to 100 ° C, more preferably 40 ° C to 65 ° C. It may be possible to easily discriminate that it is discolored during heating and is heating to prevent burns.
As the temperature-sensitive discoloring material, for example, a color former, a solid acid of phenols, and a desensitizing agent such as higher alcohol, ester, ether, etc. encapsulated and contained in a plastic are part of the apparatus. Alternatively, it may be applied to the surface of the device as paint or ink. The reversible color change mechanism during heating is due to the mixed contact of the components due to the melting of the desensitizer as described above, the change in the chemical structure of the heat-sensitive dye, the generation of radicals, and the change in the molecular arrangement. It is optional, for example, due to a change in liquid property or hydrogen bonding property, and is not particularly limited as long as it can be reversibly discolored at the time of use and it can be identified that heating is in progress.

The shape of the cover 2 and the evaporation hole 17
The shape of is arbitrary, and the attachment of the cover body 2 to the apparatus body 1 is not particularly limited, such as engagement type, rotary type, slide type, and detachable type. Further, when a transparent member is used for the cover body 2, it is possible to easily identify a color change of the drug-containing body 7 placed on the placing portion 8 in the cover body 2 when using.

Further, the shape of the heating element 5 and the drug-containing body 7
May have any shape such as a flat plate shape, a donut shape, and a cylindrical shape, and the method for placing the drug-containing body 7 is also arbitrary and is not particularly limited.

Further, in the chemical heating evaporation device, it can be used as a cord type, a cord storing type and a cordless type. Further, the cover body 2 can maintain high heat retention, has good thermal efficiency, can save power, and can also use a DC power source.

A second embodiment of the medicine heating evaporation device according to the present invention will be described. As shown in FIGS. 3 and 4, the medicine heating evaporation device is composed of a device body 1 and a cover body 2. The main body 1 is made hollow from the upper main body 3 and the lower main body 4, and the heating element 5 is mounted on the inner side thereof. Although the shape is slightly different from the first embodiment described above, the basic configuration is almost the same. Is. More specifically, the lower body 4 is provided with a heating element support leg 6 at the upper center thereof, the heating element 5 is mounted on the heating element support leg 6, and the lamp 9 and the switch 15 are provided above the predetermined position. I am wearing it.
The lamp 9 has a function of displaying the presence / absence of energization and having a function of accumulating energization time and indicating a usage time (end time).

The upper body 3 is provided with an opening 12 at the center thereof, and when the lower body 4 is fitted, the opening 12 is formed.
The heating element 5 is located on the lower side inside, and fixing hooks 21 are provided at two locations on the inner circumference of the opening 12. The opening 12 is sized so that a predetermined gap is interposed between the heating element 5 and the heating element 5.
A vertical gap 13 is provided over the entire circumference of the side surface of the. Further, a ventilation hole 10 having a slit 22 is provided on the side surface of the upper body 3.

On the other hand, the cover body 2 is composed of an upper container 24 and a lower container 25, and is mounted in the opening 12 of the upper body 3 by a fixing hook 21. The upper container 24 is shaped like an inverted bowl and has a transpiration hole 17 in the upper center portion thereof. The lower container 25 is a circular ring-shaped flat plate having three outer peripheral portions protruding to fit with the upper container 24. And a holding piece 27 for holding the drug-containing body 7 is provided at three locations on the inner peripheral side thereof,
This is used as a mounting portion 8 on which the drug-containing body 7 is mounted. Then, when the upper container 24 and the lower container 25 are fitted to each other, the upper container 24 substantially encloses the placing portion 8 on the lower container 25. Further, a cover body ventilation hole 28 is provided between the upper container 24 and the lower container 25 in the circumferential direction excluding the fitting portion so that air can flow inside the cover body 2.

As described above, in the medicine heating evaporation apparatus, the heating chamber 18 is formed by the upper container 24 of the cover body 2 above the placing portion 8 on which the medicine containing body 7 is placed, and the upper body 3 A ventilation space portion 19 is formed which extends from the ventilation hole 10 provided on the side surface of the heating element 5 to the heating chamber 18 via a vertically extending gap 13 provided over the entire circumference of the side surface of the heating element 5 and the cover ventilation hole 28.

As the drug-containing body used in the second embodiment, a conventionally known base material such as fiberboard mainly composed of pulp or asbestos containing various drugs and additives. Or using inorganic powder and / or organic powder as a base material,
Those containing various chemical additives can be used. Particularly in the second embodiment, the latter base material is preferably used to enable long-term use.

As the latter base material, calcium hydrogen phosphate and its anhydride, calcium phosphate, calcium phosphate apatite, magnesium aluminometasilicate, hydrotalside, aluminum hydroxide gel, alumina hydroxide / magnesium carbonate, calcium carbonate, silicic acid. Aluminum, magnesium silicate, anhydrous silicic acid, clay, diatomaceous earth, carion, colloidal silica, water glass, aluminum phosphate, magnesium phosphate, gypsum,
Inorganic powder such as magnesia cement, tungsten, zinc oxide, red iron oxide, tungsten trioxide, zirconium oxide, PTFE (tetrafluoroethylene resin), PVdF
Fluorine resin such as (vinylidene fluoride resin), polyacetal, polyarylate, polyether ether ketone, polyethylene, polyethylene terephthalate, polycarbonate, nylon 6, nylon 66, nylon 1
Polyamide, polyimide, polyamideimide, polysulfone-based resin such as polysulfone / polyethersulfone, polyphenylene ether, polyphenylene sulfide, polypropylene, terephthalate, polypropylene, etc.
Examples thereof include organic powders such as polymethylpentene, AES resin, AS resin, ABS resin, MBS resin, crystalline cellulose, CMC, MC, starch, HPMC, HPC and HPS. The base material is not limited to the above.

With this structure, the following operational effects are obtained. As in the first embodiment, by heating the heating element 5, air flows in through the ventilation hole 10 provided in the upper body 3, and a gap 13 is provided from the ventilation hole 10 over substantially the entire side surface of the heating element 5. Cover body ventilation hole 28
Air flows into the ventilation space 19 that reaches the heating chamber 18 via the, and the air further heats up in the heating chamber 18 so as to wrap up the drug evaporated from the drug-containing body 7 of the cover body 2. It comes to flow to the evaporation hole 17 of the upper container 24. At this time, a clean air layer is formed along the inner peripheral surface of the upper container 24 of the cover body 2. As a result, the drug evaporated from the drug-containing body 7 can be evaporated to the outside from the evaporation hole 17 without remaining in the heating chamber 18 in the cover body 2, and the adhesion of the drug to the drug heating evaporation device can be prevented. By eliminating the above, contamination can be prevented, sufficient drug evaporation can be obtained, and the desired drug evaporation effect can be obtained.

Further, since the cover 2 is provided and the heating chamber 18 is formed, a structure is less likely to be affected by the flow of the outside air in the vicinity of the upper portion of the placing portion 8, and a turbulent flow is generated by the flow of the outside air. Can be significantly reduced, and the transpiration of the drug can be favorably performed. Further, since the cover body 2 is composed of the upper container 24 and the lower container 25, the heat retaining property in the vicinity of the placing portion 8 is further improved, and thus the drug-containing body 7 is heated at a relatively low temperature to evaporate the drug. Can be done
By suppressing the thermal decomposition of the drug in the drug-containing body 7, the evaporation efficiency is increased and the desired drug evaporation effect can be obtained with the minimum necessary amount of drug.

Further, as in the first embodiment, the risk of burns and the like can be reduced and the entry of foreign matter can be prevented by making the structure such that fingers cannot easily enter. Further, the drug-containing body 7 is prevented from popping out, and the risk of accidental eating by an infant can be eliminated.

In the replacement work of the drug-containing body 7, the cover body 2 accommodating the drug-containing body 7 is replaced, and the cover body 2 is fixed to the upper main body 3 of the apparatus main body 1. By performing a one-touch operation of simply engaging with or disengaging from the hook 21, the work can be easily performed, and the safety can be improved without directly touching the drug-containing body 7 during the work. .

Next, specific conditions of each portion in the above-mentioned second embodiment will be described. For example, when the drug-containing body 7 in the shape of a cylindrical tablet having a diameter of 23 mm and a thickness of 6.5 mm is heated to evaporate the drug, the opening area of the evaporation hole 17 is the same as the first embodiment above the drug-containing body 7. 10% or more of the surface area is required, preferably 15% to 96%, more preferably 2
0% to 72% is suitable. That is, the evaporation hole 17
The opening area of, 41.5 mm ² or more is required, preferably desirable 398.6Mm ² from 62.3Mm ^2, more preferably 299.0Mm ² from 83.1mm ^2. The shape of the transpiration hole 17 is not particularly limited, but in the case of a circular shape, the transpiration agent is opened by opening the diameter of 7 mm or more, preferably 9 mm to 22 mm, and more preferably 10 mm to 19 mm. It is possible to prevent the drug-containing body 7 from sticking out and from protruding from the evaporation port 17. The distance between the outer periphery of the drug-containing body 7 and the inner peripheral surface of the upper container 24 of the cover body 2 is at least 50% or more of the side surface of the drug-containing body 1
A gap of mm or more is required, preferably 1.5 mm to 1
It is 0 mm, more preferably 2 mm to 8 mm. The distance from the upper surface of the drug-containing body 7 to the evaporation hole 17 is 3 m.
m to 30 mm, preferably 5 mm to 20 mm, more preferably 7 mm to 15 mm. The vent hole 10
The total opening area of is not particularly limited as long as it is at least ½ of the opening area of the evaporation hole 17. Ventilation area to the heating chamber 18, that is, cover body ventilation hole 28
The total opening area is required to be at least ½ of the opening area of the evaporation hole 17 or more, 50 mm ² to 500 mm ² , and more preferably 60 mm ² to 300 mm ² . Appropriate conditions can be set by combining these various conditions.

In addition, the apparatus body 1 and / or the cover body 2 have a temperature of 30 ° C. to 140 ° C., preferably 35 ° C. to 100 ° C.
More preferably, a temperature-sensitive discoloring material that reversibly discolors at any temperature within the range of 40 ° C. to 65 ° C. is used to make it possible to easily distinguish that the material discolors when being heated and is being heated. Alternatively, burns may be prevented. As the temperature-sensitive discoloring material, for example, a color former, a solid acid of phenols, and a desensitizing agent such as higher alcohol, ester, ether, etc. encapsulated and contained in a plastic are part of the apparatus. Alternatively, it can be applied to the surface as paint or ink. The reversible color change mechanism during heating is due to the mixed contact of the components due to the melting of the desensitizer as described above, the change in the chemical structure of the heat-sensitive dye, the generation of radicals, and the change in the molecular arrangement. It is optional, for example, due to a change in liquid property or hydrogen bonding property, and is not particularly limited as long as it can be reversibly discolored at the time of use and it can be identified that heating is in progress.

Further, the lower container 25 of the cover body 2 is provided with an indicator 43 which functions in accordance with the end of the evaporation of the medicine and has an indicator function of notifying the completion of the evaporation of the medicine. As such an indicator 43, various materials or the like that change color tone by heating can be used. For example, it is possible to use an electron-donating color-forming organic compound that exhibits a change in color tone with heating, a material containing a dye that causes a change in color tone by evaporation or sublimation, and the like. Also, anthraquinone-based oil-soluble dyes, monoazo-based oil-soluble dyes, disazo-based oil-based dyes, triallylmethane-based oil-based dyes, naphthalimide-based oil-based dyes, anthraquinone-based disperse dyes, basic dyes, etc. A material containing a migrating dye that migrates inside is used, and the lower container 25 is made of a polymer resin capable of migrating these dyes. The heating causes the migrating dye to migrate with time to cause a change in color tone. It can also be configured to exert the indicator function.

The indicator 43 may be provided in the upper container 24 of the cover body 2 or the apparatus body 1 in addition to the lower container 25 of the cover body 2.

Next, the cover body 2 in the second embodiment described above.
A modified example will be described. As shown in FIGS. 5 (a) and 5 (b), the upper container 24 has a hemispherical shape having the transpiration hole 17 in the central upper portion, and the lower container 25 has a substantially circular flat plate shape. It is designed to fit.

As shown in FIGS. 6 (a) and 6 (b), the upper container 24 is provided with a large cylindrical portion 30 and a small cylindrical portion 31 is provided on the upper portion of the large cylindrical portion 30 to evaporate inside the small cylindrical portion 31. The cap portion 32 having the holes 17 is provided. On the other hand, the lower container 2
5 has a substantially circular flat plate shape, and the upper container 24 is provided at three circumferential positions.
It is designed to fit with.

As shown in FIGS. 7 (a) and 7 (b), the upper container 24 has the shape of a truncated cone whose diameter is reduced toward the upper side having the evaporation hole 17 in the central upper part, and the lower container 25 is substantially circular. It has a flat plate shape and is fitted to the upper container 24 at three circumferential positions.

As shown in FIGS. 8 (a) and 8 (b), the upper container 24 is in the shape of a truncated cone whose diameter is reduced toward the upper side, and a cap portion 33 having a transpiration hole 17 is provided inside the upper portion. A plurality of openings 34 are provided in the lower circumferential direction. On the other hand, the lower container 25 has a substantially circular flat plate shape and is fitted to the upper container 24 at three circumferential positions.

As shown in FIGS. 9 (a) and 9 (b), the upper container 24 has a truncated cone shape having a transpiration hole 17 in the central upper part and having a diameter reduced toward the upper side. An inverted hemisphere 35 is provided in the section via three arms 36. On the other hand, the lower container 25 has a substantially circular flat plate shape having a through hole in the center and is fitted into the upper container 24 at three circumferential positions. Both the drug-containing body 7 and the heating element 5 are provided with a through hole in the center, and the air flowing upward from the lower part of the heating element 5 through the through holes of the heating element 5, the lower container 25, and the drug-containing body 7. Is also happening.

As shown in FIGS. 10 (a) and 10 (b), the upper container 24 and the lower container 25 have vertically symmetrical shapes, and an opening which can be used as the evaporation hole 17 is provided in the upper or lower part of the center. A protrusion 37 is provided on the inner peripheral side of the opening.

As shown in FIG. 11, the cover body 2 consisting of the upper container 24 and the lower container 25 is formed into a rectangular parallelepiped shape instead of the above-mentioned circular shape, and a rectangular evaporation hole 17 is provided on the upper part thereof and a plurality of holes are formed on the lower part. The opening 38 is provided.

As shown in FIGS. 12 (a) and 12 (b), the cover body 2 is not composed of the upper container 24 and the lower container 25, but is composed of the left container 39 and the right container 40 which are symmetrical. And make a rectangular parallelepiped. Then, a rectangular evaporation hole 17 is provided in the upper part thereof and a plurality of openings 41 are provided in the lower part. In this case, the heating element 5 is provided on the side surface side of the cover body 2 in the vertical direction.

Next, an experimental example of the chemical heating and evaporation apparatus according to the present invention will be described. As shown in FIGS. 13 (a) and 13 (b), the placing portion 8 is substantially wrapped around the upper portion of the apparatus body 1 and the placing portion 8 is provided.
A hemispherical cover body 2 having evaporation holes 17 located substantially above is provided and a heating chamber 18 is provided above the placing portion 8.
Then, a ventilation hole 10 for taking in outside air into the device body 1
And a gap 13 extending vertically over substantially the entire circumference of the side surface of the heating element 5 is provided, and a ventilation space portion 19 that extends from the ventilation hole 10 to the heating chamber 18 through the gap 13 around the entire side surface of the heating element 5 is provided. In addition, a plurality of internal ventilation holes 16 are provided on the outer peripheral side of the upper surface of the apparatus main body 1, and a ventilation space portion 20 is provided from the ventilation holes 10 to the heating chamber 18 through the internal ventilation holes 16.

In the above-described chemical heating evaporation device, the opening area of the evaporation hole 17 of the cover body 2, the distance from the upper surface of the heating element 5 to the evaporation hole 17, the ventilation hole provided in the apparatus body 1. 10 total opening area, the heating element 5
The experiment is performed by setting the ventilation area to the heating chamber 18, which is the total opening area of the gap 13 and the in-container ventilation hole 16 on substantially the entire circumference of the side surface, as shown in Table 1 below. As other conditions, the surface center temperature of the heating element 5 is a constant temperature of 140 ° C to 180 ° C, the heating time is 12 hours / one mat, and the drug-containing body 7 is a mosquito repellent mat. -T80-
Praletrin 10.0mg contained and its size is 22
mm, width 35 mm, and thickness 2.3 mm. Also, FIG.
4 (a) and 4 (b), the cover body 2 is not provided on the upper part of the apparatus main body 1 and two protective bridges 41 are provided on the orbit of evaporation of the medicine, or as shown in FIG. A comparative example will be described in which a cover body 2 is not provided on the upper part of the device main body 1, three bridges 41 are provided, and the ventilation from the lower part to the upper part of the device main body 1 is biased.

[0050]

[Table 1]

Then, as shown in Table 2 below, the evaporation rate of the drug in 12 hours, the adhesion rate of the drug to the device for heating and evaporating the drug,
The state of contamination when 60 mats were used, and the temperature measurement of a predetermined portion of the chemical heating and evaporation device (around the evaporation hole A of the cover body, around the upper middle of the cover body B, and near the bridge C in the comparative example) were measured.

[0052]

[Table 2]

As is clear from the experimental results shown in Table 2, in Experimental Examples 1 to 9, the drug transpiration rate was much higher than those in Experimental Examples 10 to 12 and Comparative Examples 1 and 2. Moreover, it can be said that the adhesion of the drug to the inside of the drug heating evaporation device is greatly reduced and it is difficult to adhere. In addition, even when used for a long period of time, the adhesion of the drug is small and the desired drug evaporation effect can be obtained. And from Experimental example 10 to Experimental example 12,
When several sheets were evaporated, the inside of the cover body 2 became sticky and the chemicals adhered, and after long-term use (60 sheets evaporated), the chemicals became resin. This is considered to be because in Experimental Example 10, the opening area of the evaporation hole 17 is small and the evaporated drug adheres to the periphery of the evaporation hole 17, and in Experimental Examples 11 and 12, the opening area of the ventilation hole 10 or heating is increased. Since the ventilation area to the chamber 18 is small and the ventilation to the inside of the heating chamber 2 is not sufficiently ensured, it is considered that the evaporated drug remains inside the cover body 2 and the drug adheres. On the other hand, in Comparative Example 1 and Comparative Example 2, the evaporated drug adhered to the bridge 41 with time, and the resin was resinified. Further, in Comparative Example 2, the ventilation from the lower side to the upper side of the apparatus main body 1 was uneven, and in particular, many chemical agents were attached to one end side of the apparatus main body 1.

The material of the cover 2 used in the present invention is desired to have heat resistance and chemical resistance depending on the chemicals used. For example, polypropylene, polyethylene, polyamide, polyethylene terephthalate, polybutylene terephthalate, polysulfone, polyacetal, melamine resin, polytetrafluoroethylene,
Phenol resin, unsaturated polyester resin, epoxy resin, urethane resin, methacrylic acid resin, polyarylate, polyketone, polyamide imide, polyallyl sulfone, polyphenylene sulfide, polyphenyl sulfone, polyether nitrile and the like can be mentioned. In addition, a material obtained by kneading a metal powder of aluminum or the like or vapor-depositing a metal can also be used.

As the heat evaporation method according to the present invention, the drug-containing body is placed on a heating element to evaporate the drug, or the drug-containing body is installed together with the drug container on or near the heating element to form the drug-containing body. It can be applied to a method of heating and evaporating the drug.

The heating temperature at the time of heat evaporation according to the present invention is selected depending on the contained drug, but it is usually preferable to keep the surface temperature of the heated part of the drug-containing body at 40 ° C to 200 ° C.

As a method of heating the heating element, a resistance heater (cement resistor, metal oxide film resistor, carbon film resistor, nichrome wire, etc.), a method of energizing a heater using a semiconductor (PTC), Oxidation method (oxidation of metals such as iron and magnesium), hydrolysis reaction (reaction of quicklime and water, etc.), combustion heat of alcohol, gas, kerosene, wax, etc.
Further, a method of utilizing combustion heat of alcohol, gas or the like using a platinum catalyst, a method of directly or indirectly utilizing other heat source, and the like are used.

The drug-containing body of the present invention may contain various transpiration agents according to the purpose of use. For example, when used for the purpose of insecticidal, as the insecticide, it is possible to use various transpiration insecticides that have been conventionally used, such as pyrethroid insecticides, carbamate insecticides, organophosphorus insecticides and the like. You can Generally, a pyrethroid insecticide is preferably used because it is highly safe, and examples thereof include allethrin, d1 · d-T80-allethrin, d · d-T80-allethrin, d · d-T80-praletrin, phthalthrin and d-T80-. Various conventionally known pyrethroid insecticides such as resmethrin, d-T80-flamethrin, permethrin, phenothrin, fenvalerate, cypermethrin, cyphenothrin, empentrin, terrarethrin, etofenprox, benfluthrin and the like can be used.

Similarly, when used for the purpose of aroma, various natural and artificial flavors can be used,
For example, animal or plant natural fragrances, hydrocarbons, artificial fragrances such as alcohols, phenols, aldehydes, ketones, lactones, oxides, esters, etc.
The seeds can be used alone, or two or more kinds can be mixed and used. Furthermore, depending on the purpose, deodorant, germicide,
Various chemicals such as antifungal agents, rust preventives, acaricides, and repellents can be used as long as they can be evaporated by heating.

[0060]

EFFECTS OF THE INVENTION Since the heating chamber is formed by providing the cover body, in the vicinity of the upper portion of the mounting portion on which the drug-containing body is mounted,
By making it less affected by the flow of the outside air and significantly reducing the occurrence of turbulence due to the flow of the outside air, it is possible to satisfactorily evaporate the drug and improve the heat retaining property near the placing part. Therefore, it is possible to evaporate the drug by heating the drug-containing body at a relatively low temperature. By suppressing the thermal decomposition of the drug in the drug-containing body, it is possible to improve the evaporation efficiency and minimize the required amount of the drug. A drug transpiration effect is obtained. Further, by forming a ventilation space part from the ventilation hole provided in the main body of the device to the heating chamber through a gap around the entire side surface of the heating element, the drug-containing body placed on the mounting part is heated by the heating element. When the medicine is evaporated by means of the evaporation agent, it can be evaporated toward the evaporation hole of the cover body so as to be wrapped by the air flowing through the ventilation space, and evaporated to the outside through the evaporation hole. By preventing the drug from adhering to the inside of the body, contamination can be prevented, sufficient drug evaporation can be obtained, and the desired drug evaporation effect can be obtained. Further, by forming a ventilation space portion that reaches the heating chamber through an internal ventilation hole that communicates the inside of the apparatus main body with the heating chamber from the ventilation hole, the inside of the cover body is covered by the air flowing through the ventilation space portion. A layer of clean air can be generated along the peripheral surface, eliminating the adherence of evaporated chemicals to the cover body, preventing contamination and obtaining sufficient chemical vaporization, and the desired chemical vaporization effect. Is obtained. Further, by making the opening area of the evaporation hole provided in the cover body smaller than the size of the drug-containing body, the drug-containing body inside does not pop out even if it falls or is inclined,
Safety can be improved by eliminating the risk of accidental eating of infants. Further, since the cover body is pivotally attached to the main body of the apparatus and can be opened upward, the work of attaching / detaching the drug-containing body to / from the mounting portion can be facilitated and the operability can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a chemical heating and evaporation device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of a chemical heating evaporation device according to a second embodiment of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 (a) is a perspective view showing a modified example of the cover body of the chemical heating vaporization device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 6 (a) is a perspective view showing a modified example of the cover body of the chemical heating and evaporation device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 7 (a) is a perspective view showing a modified example of the cover body of the chemical heating and evaporation device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 8 (a) is a perspective view showing a modified example of the cover body of the chemical heating and evaporation device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 9 (a) is a perspective view showing a modified example of the cover body of the chemical heating vaporization device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 10 (a) is a perspective view showing a modified example of the cover body of the chemical heating and evaporation device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 11 is a perspective view showing a modified example of the cover body of the chemical heating and evaporation device of the second embodiment of the present invention.

FIG. 12 (a) is a perspective view showing a modified example of the cover body of the chemical heating and vaporization device of the second embodiment of the present invention. (B) It is sectional drawing of (a).

FIG. 13 (a) is a plan view of a chemical heating evaporation device of an experimental example of the present invention. (B) It is CC sectional drawing of (a).

FIG. 14 (a) is a plan view of a chemical heating and evaporation device of a comparative example in the present invention. (B) It is a DD sectional view of (a).

FIG. 15 is a cross-sectional view of a medicine heating evaporation device of a comparative example in the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Device body, 2 ... Cover body, 3 ... Upper body, 4 ... Lower body, 5 ... Heating element, 6 ... Heating element support leg, 7 ... Drug containing body, 8 ... Mounting part, 9 ... Lamp, 10 ... Ventilation hole, 12 ... Opening portion, 13 ... Gap, 14 ... Lamp cover, 15 ... Switch, 16 ... Ventilation hole, 17 ... Evaporation hole, 18 ... Heating chamber,
19 ... Ventilation space part, 20 ... Ventilation space part, 21 ... Fixing hook, 22 ... Slit, 24 ... Upper container, 25 ... Lower container,
26 ... Fitting piece, 27 ... Holding piece, 28 ... Cover body ventilation hole,
30 ... Large cylindrical portion, 31 ... Small cylindrical portion, 32 ... Cap portion, 33 ...
Cap portion, 34 ... Opening portion, 35 ... Inverse hemisphere, 36 ... Arm,
37 ... Projection part, 38 ... Opening part, 39 ... Left container, 40 ... Right container, 41 ... Opening part, 42 ... Bridge, 43 ... Indicator.

Claims (4)

[Claims] 1. A heating element 5 is mounted inside the apparatus main body 1,
In the medicine heating evaporation device in which the medicine containing body 7 is placed on the placing portion 8 of the heat generating body 5 and the medicine containing body 7 is evaporated directly or indirectly by the heat generating body 5, the apparatus body 1 Cover body 2 having evaporation holes 17 on the top
Is provided so as to substantially enclose the placing portion 8 to form a heating chamber 18 above the placing portion 8, a ventilation hole 10 for taking in outside air is provided in the apparatus body 1, and a side surface of the heating element 5. A gap 13 that extends vertically is provided over substantially the entire circumference, and a gap 13 is formed around the entire side surface of the heating element 5 from the vent hole 10.
A chemical vaporization device characterized in that a ventilation space portion 19 is formed through the above to reach the heating chamber 5. 2. An in-container vent hole 16 which connects the inside of the apparatus body 1 and the heating chamber 18 to the outer peripheral side of a gap 13 provided over substantially the entire side surface of the heating element 5 in the apparatus body 1.
2. The chemical vaporization device according to claim 1, wherein a ventilation space portion 20 is provided from the ventilation hole 10 to the heating chamber 18 through the in-container ventilation hole 16. 3. The drug heat evaporation according to claim 1, wherein the opening area of the evaporation hole 17 provided in the cover body 2 is smaller than the size of the drug containing body 7 placed on the placing portion 8. apparatus. 4. The device body 1 is provided with one end of the cover body 2.
2. The chemical heating and evaporation device according to claim 1, wherein the chemical heating and evaporation device is pivotally attached to and is opened upward from the other end side.