JP4226483B2 - Chemical volatilization device - Google Patents

Description

  The present invention relates to a chemical volatilization device, and more particularly to a chemical volatilization device incorporating a fan.

  Conventionally, a chemical volatilization apparatus has been used to volatilize chemicals for the purpose of insect repellent. An example of a conventional drug volatilization apparatus is shown in FIG. 5 (see, for example, Patent Document 1).

  As shown in FIG. 5, in the chemical volatilization device 50, a chemical holder 51 that holds a pest control component and a fan (not shown) that applies an airflow to the chemical holder 51 are accommodated in the chamber 53. In addition, an intake port 54 for taking outside air into the chamber 53, and upper and lower exhaust ports 55, 56 for releasing an airflow containing a pest control component to the outside of the chamber 53 are provided. , 56 are arranged such that an air stream containing a pest control component is released along the installation surface on which the chemical volatilization device 50 is installed.

The drug volatilization apparatus 50 is configured such that the drug holder 51 is inserted from the insertion opening 57 of the chamber 53 and the belt B is clamped by the clip 58 so that the user who stands the drug volatilization apparatus 50 is put on the switch 59 and the switch 59 is turned on. When turned on, the fan in the chamber 53 is rotated, and outside air is taken into the chamber 53 from the air inlet 54 as an air current. The airflow passes through the net-like member 60 of the medicine holder 51. At that time, the pest control component is included in the airflow. And the airflow A containing the pest control component is discharged | emitted only upward and downward through the upper exhaust port 55 and the lower exhaust port 56 along the user's torso surface which is an installation surface.
Japanese Unexamined Patent Publication No. 2001-197856 (page 2-4, FIG. 1)

  In general, the chemical volatilization apparatus on the market has a flow of airflow in the order of intake port → fan → drug carrier → exhaust port, but the opening area of the exhaust port is considerably smaller than the opening area of the intake port. The air flow is blocked by the small exhaust port, and as a result, efficient volatilization cannot be performed.

  By the way, in the chemical volatilization apparatus in which a breathable fan cover member is attached to the front surface of the fan so that the finger does not come into contact with the fan when the medicine holder is replaced, the airflow flows from the inlet to the fan. → Fan cover member → Chemical carrier → Exhaust port In this order, the relationship between the opening area of the fan cover member and the opening area of the exhaust port is not taken into consideration. Therefore, there is a high possibility that efficient volatilization cannot be performed.

  This invention is made | formed in view of the said situation, The objective is to provide the chemical | medical agent volatilization apparatus which has more favorable volatilization performance.

  In order to achieve the above-described object, the chemical volatilization device according to the present invention is characterized by the following (1), (2), and (3).

(1) a drug carrier holding a pest control component;
A fan that applies an air flow to the drug holder;
A chamber that contains the medicine holder and the fan, and has an intake port for taking in outside air and an exhaust port for releasing an airflow containing the pest control component to the outside;
In a chemical volatilization device comprising:
The opening area of the exhaust port and the medicine holder is larger than the opening area of the intake port ,
An opening area of the medicine holder is larger than an opening area of the exhaust port;
The opening area of the exhaust port is 1.3 to 1.6 times the opening area of the intake port .
(2) An air permeable fan cover member is assembled between the fan and the medicine holder, and an opening area of the exhaust port is 0.9 to 1.1 of an opening area of the fan cover member. Be double.
(3) The distance between the fan cover member and the medicine holder is 0.5 to 3.0 mm.

According to the chemical volatilization apparatus having the configuration described in (1) above, the air outlet containing the pest control component is discharged to the outside, and the opening area of the chemical holder that holds the pest control component takes in the outside air. The opening area of the medicine holder is larger than the opening area of the exhaust port, and the opening area of the exhaust port is 1.3 to 1.6 of the opening area of the intake port. Is double . Therefore, the air introduced from the intake port is efficiently applied to the drug holding body, and the airflow discharged from the exhaust port through the drug holding body is not hindered, and good volatilization can be performed.
According to the chemical volatilization device having the configuration described in (2) above, the opening area of the exhaust port is set to 0.9 to 1.1 times the opening area of the fan cover member, so the medicine holder is replaced. In this case, even if a fan cover member that prevents finger contact is attached, the fan cover member can perform good volatilization without hindering the flow of airflow.
According to the chemical volatilization apparatus having the configuration described in the above (3), since the airflow that has passed through the fan cover member is applied to the chemical holder placed at a position separated by 0.5 to 3.0 mm, both It is possible to efficiently release the drug in the drug holder without causing turbulent flow.

  According to the chemical volatilization apparatus of the present invention, it can be given to the chemical carrier without obstructing the air flow, so that good volatilization performance can be ensured.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

  FIG. 1 is an external perspective view in an exploded state as seen from an oblique front showing an embodiment of a chemical volatilization apparatus according to the present invention, and FIG. 2 is an external perspective view of the chemical volatilization apparatus shown in FIG. 3 is a longitudinal sectional view of the chemical volatilization apparatus shown in FIG. 1, and FIG. 4 is a table of the examples.

  As shown in FIG. 1, the drug volatilization apparatus 10 according to an embodiment of the present invention includes a front cover 15 in which an exhaust port 16 is formed, a front case 17, and a rear in which an intake port (shown in FIG. 2) 19 is formed. The chamber 11 includes a case 18, a fan (shown in FIG. 3) 12, a fan cover member 13, and a medicine holder 14.

  The chamber 11 is made of resin and is formed in an isosceles trapezoidal shape so that the user can easily hold it by hand.

  The front cover 15 is disposed at the front end portion of the chamber 11, and positioning projections 21 and 21 (shown in FIG. 3) inserted into the positioning holes 20 and 20 formed in the front case 17 project at the lower end portion. Has been. Further, the front cover 15 has a locking projection 23 which is fitted into an engaging portion 22 formed on the front case 17 so as to protrude from the upper end portion.

The front cover 15 has an exhaust port 16 penetrating from the front surface of the chamber 11 to the inside of the chamber 11. The exhaust port 16 is formed in the shape of 11 vertical slits, and is set to have an opening area of 1970 mm ² . The exhaust port 16 is not limited to a vertical slit but may be a horizontal slit, which is selected in consideration of the design surface. Further, the number of slits is not limited to 11 and is appropriately selected.

  The front case 17 forms the front half of the chamber 11 and is fitted to the rear case 18. The front case 17 includes a motor holder (shown in FIG. 3) 25 for assembling a motor (shown in FIG. 3) 24 for driving the fan 12, and a rectangular concave fan cover member mounting portion 26 for assembling the fan cover member 13. A quadrangular concave drug holder mounting portion 27 for mounting the drug holder 14 and a front cover mounting portion 28 are sequentially formed from the rear to the front.

  The medicine holder mounting portion 27 has contacts 31, 31 for passing a current of a dry battery (shown in FIG. 3) 29, which is a timing means built in the medicine holder 14, to the control circuit (shown in FIG. 3) 30. In addition, contacts 32 and 32 for detecting whether or not the medicine holding body 14 is mounted and supplying an electric signal to the control circuit 30 are arranged. The front cover mounting portion 28 has positioning holes 20 and 20 formed at the lower end portion and an engaging portion 22 formed at the upper end portion.

  The front case 17 has a switch 33, indicators 35, 35, 35 for displaying the remaining amount of dry batteries (shown in FIG. 3) 34, 34 as a power source, and a medicine holder below the front cover mounting portion 28. 14, indicators 36, 36, and 36 for displaying the remaining amount of the pest control component are disposed.

  The rear case 18 forms a rear half of the chamber 11 and is assembled by screwing a screw (not shown) into the front case 17.

The fan cover member 13 is formed in a square shape with a relatively small thickness. In the fan cover member 13, a communication hole 39 including a central hole 37 and five circular slits 38 sequentially arranged on the outer periphery of the central hole 37 is formed so as to penetrate the medicine holder 14 from the fan 12 side. Is formed. The fan cover member 13 is disposed on the front surface of the fan 12 so that the finger does not come into contact with the fan 12 when the medicine holder 14 is replaced. In the fan cover member 13, the communication hole 39 is set to an opening area of 1984 mm ² equivalent to that of the exhaust port 16.

The medicine holder 14 has a holder case 40, and a honeycomb member 41 is accommodated in the holder case 40. The honeycomb member 41 holds a chemical containing a pest control component. In the medicine holder 14, the holder case 40 has an opening area of 2916 mm ² and the honeycomb-shaped member 41 has a volume of 29160 mm ³ . For example, the honeycomb-shaped member 41 holds the drug for 45 days when used for 8 hours per day.

As an active ingredient of the chemical | medical agent hold | maintained at the honeycomb-shaped member 41, a pest control agent, a disinfectant, a fragrance | flavor, a deodorant, etc. can be illustrated. Typical examples of pest control components are shown below.
Dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl dl-cis / trans-chrysanthemate (generic name aresulin: trade name pinamine: manufactured by Sumitomo Chemical Co., Ltd.)
Dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-cis / trans-chrysantemate (trade name: Pinamine Forte: manufactured by Sumitomo Chemical Co., Ltd.)
Dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-trans-chrysanthemate (general name Bioareslin, trade name S-Biol: Yukraf)
D-3-allyl-2-methyl-4-oxo-2-cyclopentenyl d-trans-chrysanthemate (trade name exrin: manufactured by Sumitomo Chemical Co., Ltd.)
・ (5-Benzyl-3-furyl) methyl d-cis / trans-Chrysantemate (generic name Resmethrin: trade name: Chryslon Forte: manufactured by Sumitomo Chemical Co., Ltd.)
5-Propagyl-2-furylmethyl-d-cis / trans-Chrysantemate (generic name furamethrin: trade name pinamine D forte: manufactured by Sumitomo Chemical Co., Ltd.)
(+)-2-methyl-4-oxo-3- (2-propynyl) -2-cyclopentenyl (+)-cis / trans-chrysantemate (generic name: plaretrin, trade name Etok: Sumitomo Chemical Co., Ltd.) Made)
Dl-3-allyl-2-methyl-4-oxo-2-cyclopentenyl-dl-cis / trans-2,2,3,3-tetramethylcyclopropanecarboxylate (generic name: Terrareslin: Sumitomo Chemical Co., Ltd.) Company-made)
(1,3,4,5,6,7-hexahydro-1,3-dioxo-2-isoindolyl) methyl-dl-cis / trans-chrysantemate (generic name phthalusrin, trade name Neopinamine: Sumitomo Chemical Co., Ltd.) Company-made)
(1,3,4,5,6,7-hexahydro-1,3-dioxo-2-isoindolyl) methyl-d-cis / trans-chrysantemate (trade name Neopinamine Forte: Sumitomo Chemical Co., Ltd.) Made)
3-phenoxybenzyl-d-cis / trans-chrisantemate (generic name phenothrin, trade name Smithin: manufactured by Sumitomo Chemical Co., Ltd.)
3-phenoxybenzyl-dl-cis / trans-3- (2,2-dichlorovinyl) -2,2-dimethyl-1-cyclopropanecarboxylate (generic name permethrin, trade name Exmin: manufactured by Sumitomo Chemical Co., Ltd.) )
(±) α-cyano-3-phenoxybenzyl (+)-cis / trans-Chrysanthemate (generic name ciphenothrin, trade name Gokyrat: manufactured by Sumitomo Chemical Co., Ltd.)
1-ethynyl-2-methyl-2-pentenyl dl-cis / trans-3- (2,2-dimethylvinyl) -2,2-dimethyl-1-cyclopropanecarboxylate (generic name empentrin, trade name vaporsulin) : Sumitomo Chemical Co., Ltd.)
D-trans-2,3,5,6-tetrafluorobenzyl-3- (2,2-dichlorovinyl) -2,2-dimethyl-1-cyclopropanecarboxylate (generic name transfluthrin)
1-ethynyl-2-methyl-2-pentenyl 3- (2,2-dichloroethenyl) -2,2-dimethylcyclopropanecarboxylate and the like.

  Further, for example, compounds that are structurally similar to the above-described compounds and have substantially the same medicinal properties can also be mentioned. For example, in the case of Empentrin, the two substituents at the 3-position are methyl groups, but compounds having other alkyl groups, unsaturated alkyl groups or halogen atoms as the substituents can also be used. In addition, fiproneil, S-1295, imiprothrin, furanyl insecticide dinotefuran (chemical name: (RS) -1-methyl-2-nitro-3- (tetrahydro-3-furylmethyl) guanidine), Trichlorfone, Cartap, Acetamiprid, Nitenpyram, Imidacloprid (Imidacloprid, manufactured by Bayer Agrochem, Japan), Nitenpyram (Nitenpyram, manufactured by Sumika Takeda Agricultural Chemicals), Thiacloprid (Thicloprid, manufactured by Bayer Agrochemid, Clothi Chemical) Takeda Agrochemicals), Thiamethoxam (Thiamethoxam, manufactured by Syngenta), Proxur (Propoxur, manufactured by Bayer Yakuhin), Pimetrozine (Pymetrozine, Shinji) Insecticides such as Nanta, Fenitrothion (Sumitomo Chemical), Fention (Bayer), Metofluthrin (Sumitomo Chemical), Amidoflumet (Sumitomo Chemical), and plant essential oils and metoprene (isopropyl (2E-2E)) ) -11-methoxy-3,7,11-trimethyl-2,4-trimethyldodeca-2,4-dienoate), pyriproxyfen, 82- [1-methyl-2- (phenoxyphenoxy) ethoxy] pyridine), etc. Insect Chitin Formation Inhibitory Compounds such as Insect Juvenile Hormone, Diflupendurone (1- (4-Chlorophenyl) -3- (2,6-difluorobenzoyl) urea), Teflubenzuron (1- (3,5-difluorobenzoyl) urea) Etc.

  Among these, those that are hardly volatile at normal temperature are preferable, and praretrin, resmethrin, bioareslin, framethrin, terrareslin, transfluthrin, and metfurthrin are particularly preferable. Such pest control components may be used alone or in combination. These analogs are also used. Of these, those that are likely to volatilize at room temperature include, for example, a cover for adjusting volatilization, hydrocarbons such as polybutene, isoparaffin, normal paraffin, hexyl laurate, isopropyl myristate, butyl phthalate, etc. By using together with a volatilization regulator composed of these esters, it becomes difficult to volatilize and a pest control effect can be obtained over a long period of time.

  As an additive for reducing the viscosity of a liquid drug for the purpose of easily impregnating the drug in the drug holder 14 when the drug holder 14 holds the drug, isopropyl myristate, isopropyl palmitate, hexyl laurate, etc. Solvents such as fatty acid esters, isopropyl alcohol, polyethylene glycol, and deodorized kerosene can be used as necessary. Moreover, when hold | maintaining a chemical | medical agent in a chemical | medical agent holding body, this can be hold | maintained with another auxiliary component, for example, if a sublimation substance is added as an auxiliary | assistant for transpiration | evaporation, the volatilization effect may increase. When a pyrethroid compound is used as a pest control component, it is also preferable to mix known synergists effective against this. Furthermore, when an antioxidant such as BHT or BHA or an ultraviolet absorber is added, stability against light, heat, oxidation, etc. is enhanced.

  The medicine holder 14 can be arbitrarily set in form, material, size, etc., but is preferably a simple structure with high air permeability. For example, a honeycomb shape, a slat shape, a bellows shape, a net shape, a slit shape, a lattice shape, a granular shape, a granular shape, or a paper having a hole may be employed. The shape of each cell is not a problem in terms of the effect of the present invention. As a shape other than those described above, for example, a hexagonal honeycomb shape, a circular shape, or an S-shape may be used. A breathable carrier in which granules, blocks, pulverized materials, etc. are stored in a breathable case (holding case) so as not to impair the breathability can also be used as a drug holding body.

  The material forming the drug holder 14 is not particularly limited as long as it can sufficiently hold the active ingredient. However, it is preferable to use a material that can continuously volatilize the same amount of active ingredient over the required time, rather than volatilizing the retained active ingredient at a time. For example, paper (filter paper, pulp, linter, cardboard, cardboard, etc.), resins (polyethylene, polypropylene, polyvinyl chloride, highly oil-absorbing polymer, etc.), ceramic, glass fiber, carbon fiber, chemical fiber (polyester, nylon, acrylic) , Vinylon, polyethylene, polypropylene, etc.), natural fibers (cotton, silk, wool, hemp, etc.), glass fibers, carbon fibers, chemical fibers, natural fibers, etc., non-woven fabrics such as woven fabrics, porous glass materials, Examples thereof include a porous metal material and a wire mesh.

  Moreover, the chemical | medical agent holding body 14 hold | maintains the chemical | medical agent containing an active ingredient, and may use it in arbitrary shapes combining these 1 type (s) or 2 or more types. In order to hold the active ingredient or the like in the medicine holder 14, a medicine is dropped on the medicine holder 14, a liquid coating method such as impregnation coating or spray coating, a method such as liquid printing or brush coating, or the medicine holder 14. For example, a method of sticking to the surface can be used. Furthermore, when the composition to be used is not liquid or when no solvent is used, methods such as kneading, coating and printing can be applied.

  The amount of the active ingredient held in the drug holding body 14 is usually up to the saturated impregnation amount of the drug holding body 14, but by connecting a replenishing container to the drug holding body 14 via a liquid absorbing material. In addition, it can be in a form that can be used until the liquid in the container is continuously exhausted over a long period of time.

  As shown in FIG. 2, the rear case 18 includes two parts including a rear case main body 42 and a battery cover 43. A battery holder (shown in FIG. 3) 44 is formed in the lower part of the rear case body 42, and in this case, two AA-type dry batteries 34, 34 are accommodated in the battery holder 44.

The rear case main body 42 is formed with an air inlet 19 penetrating from the rear surface of the chamber 11 to the inside of the chamber. The intake port 19 is formed in the shape of 11 horizontal slits, and is set to an opening area of 1395 mm ² . The intake port 19 is not limited to a horizontal slit but may be a vertical slit, which is selected in consideration of the design surface. Further, the number of slits is not limited to 11 and is appropriately selected. The battery cover 43 has an elastic protrusion 45, and the elastic protrusion 45 is fitted into the rear case body 37 in a snap action manner to close the battery holder 44.

  As shown in FIG. 3, a control circuit 30 is assembled to the lower part of the front case 17. The fan 12 has a diameter of 57 mm and is fixed to the motor shaft 46 of the motor 24 assembled to the motor holder 25. The control circuit 30 is electrically connected to a motor 24, dry batteries 34 and 34, contacts 31 and 31, and contacts 32 and 32 housed in a battery holder 43. A dry battery 29 that functions as a timing unit is assembled to the medicine holder 14. The fan cover member 13 is attached to the fan cover member attaching portion 26 with a gap distance L1 of 0.5 to 3.0 mm between the fan cover member 13 and the medicine holder 14. As the fan 12, a rotary fan, a sirocco fan, a piezo fan, or the like can be used. As the power source, an alkaline battery (dry battery), a manganese battery (dry battery), a mercury battery, or the like can be used, or a solar battery, a nickel cadmium battery, a storage battery, or the like can be used. A household commercial power supply may also be used.

  Since the fan 12 is disposed between the air inlet 19 of the rear case 18 and the fan cover member 13, the fan 12 is rotated by driving the motor 24, and negative pressure is generated in the chamber 11 of the air inlet 19. Is generated. Then, due to the negative pressure generated by the fan 12, air is introduced into the chamber 11 through the air inlet 19, and the airflow by the air is applied to the honeycomb-like member 41 of the drug holding body 14 through the fan cover member 13. Therefore, the airflow containing the pest control component is discharged to the outside from the exhaust port 16 of the front cover 15.

  The above-described drug volatilization apparatus 10 is used with the dry batteries 34 and 34 mounted on the battery holder 43, the drug holder 14 mounted on the drug holder mounting part 27, and the front cover 15 mounted on the front cover mounting part 28. Is done. At this time, if the medicine holder 14 is not attached to the medicine holder attachment portion 27, the control circuit 30 detects that the medicine holder 14 is not attached due to the conduction state of the contacts 32 and 32. Even if the switch 33 is turned on, the power is not supplied to the motor 24 and the fan 12 is not driven. When the medicine holder 14 is mounted on the medicine holder mounting portion 27, the control circuit 30 detects that the medicine holder 14 is mounted based on the conduction state of the contacts 32, 32. The fan 12 is driven by being switched on. After the switch 33 is turned on, the indicators 35, 35, 35 are sequentially turned on according to the remaining amount of the dry batteries 34, 34, and display the remaining amount of the dry batteries 34, 34. Indicators 36, 36, and 36 are sequentially turned on according to the remaining amount of the medicine in the medicine holder 14, displays the remaining amount of the medicine, and notifies the replacement timing of the medicine holder 14.

In chemical volatilization device 10 described above, the opening area of the exhaust port 16 (1970mm ²⁾ and the opening area of the chemical retainer 14 (2916mm ²⁾ is set larger than the opening area of the intake port 19 (1395mm ^2). The opening area of the exhaust port 16 (1970mm ²⁾ is set to be 1.3 to 1.6 times the opening area of the intake port 19 (1395mm ^2). The opening area of the exhaust port 16 (1970mm ²⁾ is set to be 0.9 to 1.1 times the aperture area of the fan cover member 13 (1984mm ^2). The fan cover member 13 is disposed with a gap distance L1 of 0.5 to 3.0 mm between the medicine cover 14 and the fan cover member 13. Therefore, the size relationship of each opening area is expressed as follows.
Drug holding body 14> exhaust port 16≈fan cover member 13> intake port 19
It becomes.

(Example)
Next, with reference to FIG. 4, the Example performed in order to confirm the effect of the chemical volatilization apparatus 10 which concerns on one Embodiment of this invention is demonstrated.
In the examples, the chemical volatilization device 10 of the present invention in which the gap distance L1 between the fan cover member 13 and the chemical carrier 14 is set to 1.5 mm is A, and B is prepared as a conventional chemical volatilization device.
Chemical volatilization device B, the aperture area of 1315mm ² inlet, outlet opening area is 1150 mm ^2, the fan diameter is 57 mm, the opening area of the chemical retainer is 2916Mm ^2, the volume of the chemical retainer is a 29160Mm ³ .

As shown in FIG. 4, according to the embodiment,
In the chemical volatilization apparatus 10 (A) of the present invention, an air volume of 1.08 L / s was obtained, and the volatilization volume was 0.76 mg / h.
In contrast, in the chemical volatilization apparatus B, only an air volume of 1.01 L / s was obtained, and as a result, the volatilization volume remained at 0.68 mg / h. This is because good volatilization cannot be performed because the opening area of the exhaust port is smaller than the opening area of the intake port.

  That is, in order to efficiently volatilize the medicine of the medicine holder 14 using the rotation of the fan 12, the opening area of the medicine holder 14 and the exhaust port 16 is not larger than the opening area of the intake port 19, It can be seen that the flow of airflow is hindered and proper volatilization cannot be achieved. Further, it has been found that the opening area of the fan cover member 13 is substantially the same as the opening area of the exhaust port 16, thereby providing appropriate volatilization. Although the opening area of the exhaust port 16 and the medicine holder 14 is not particularly defined as long as it is larger than the opening area of the intake port 19, the exhaust port 16 is preferably 1.3 to 1.6 times as large as the intake port 19. It turned out to be preferable for obtaining volatilization. The fact that the opening area of the fan cover member 13 and the opening area of the exhaust port 16 are substantially the same does not mean which is larger, and if it is 0.9 to 1.1 times, whichever is larger or the same. Good. It has been found that the distance between the fan 12 and the fan cover member 13 is preferably small in order to make the entire apparatus compact, and is preferably 0.5 to 3.0 mm, preferably around 1.5 mm.

  According to the chemical volatilization apparatus 10 of the present embodiment, the exhaust port 16 that discharges an airflow containing a pest control component to the outside and the opening area of the drug holder 14 that holds the pest control component are intake ports that take in outside air inside. It is larger than 19 opening areas. Therefore, air introduced from the intake port 19 is efficiently applied to the drug holding body 14, and the airflow discharged from the exhaust port 16 through the drug holding body 14 is not hindered, and good volatilization can be performed.

  In addition, according to the drug volatilization apparatus 10 of the present embodiment, the opening area of the exhaust port 16 is set to 0.9 to 1.1 times the opening area of the fan cover member 13, so that the drug holder 14 is replaced. When the fan cover member 13 for preventing finger contact is attached, the fan cover member 13 can perform good volatilization without hindering the flow of airflow.

  Moreover, according to the chemical volatilization apparatus 10 of this embodiment, since the airflow which passed the fan cover member 13 is applied to the chemical | medical agent holding body 14 distribute | arranged only 0.5-3.0 mm away, both The medicine in the medicine holder 14 can be efficiently released without generating turbulent flow between the two.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. For example, the intake port may be provided on the side of the rear case, and a hook may be provided on the rear surface of the rear case for portable use.

It is an external appearance perspective view in the decomposition state seen from the slanting front which shows one embodiment of the chemical volatilization device concerning the present invention. It is the external appearance perspective view which looked at the chemical volatilization apparatus shown in FIG. 1 from diagonally back. It is a longitudinal cross-sectional view of the chemical volatilization apparatus shown in FIG. It is a table | surface of an Example. It is an external view of the conventional chemical volatilization apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Drug volatilization apparatus 11 Chamber 12 Fan 13 Fan cover member 14 Drug holding body 16 Exhaust port 19 Intake port

Claims (3)

A drug carrier holding a pest control component;
A fan that applies an air flow to the drug holder;
A chamber that contains the medicine holder and the fan, and has an intake port for taking in outside air and an exhaust port for releasing an airflow containing the pest control component to the outside;
In a chemical volatilization device comprising:
The opening area of the exhaust port and the medicine holder is larger than the opening area of the intake port ,
An opening area of the medicine holder is larger than an opening area of the exhaust port;
The drug volatilization apparatus , wherein an opening area of the exhaust port is 1.3 to 1.6 times an opening area of the intake port .   A breathable fan cover member is assembled between the fan and the medicine holder, and the opening area of the exhaust port is 0.9 to 1.1 times the opening area of the fan cover member. The chemical volatilization device according to claim 1.   The drug volatilization device according to claim 1 or 2, wherein a distance between the fan cover member and the drug holder is 0.5 to 3.0 mm.

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