JP2003210092A - Insecticide transpiratory system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insecticide transpiratory system having the function of correctly and evidently informing a user of the expiration date for the use of a cartridge containing an insecticide-impregnated mass, not to mention insecticide transpiratory performance, usability and economy. <P>SOLUTION: This insecticide transpiratory system functions to vaporize an insecticide impregnated in the mass with the help of rotating a fan from the cartridge containing the mass. This system includes a microcomputer for functioning to display the time period of using a motor, which runs the read-in of a power switch and a reset switch, the control of a motor source, the control of a display LED, the readout of power supply frequency from a frequency sensing diode, and the integration of the time period of using the motor based on the readout. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan type chemical vaporization device.

[0002]

2. Description of the Related Art In order to control pests such as mosquitoes and worms, heat energy is used as a method for volatilizing and releasing chemicals throughout a closed space (in a building, an interior of a car, a tent for outdoor sports, etc.). A mosquito coil, an electric mosquito mat, and a liquid type mosquito coil (liquid) are generally used, but a method of volatilizing and releasing the drug by using wind force such as a fan at room temperature is also in practical use. . The latter method does not necessarily require an AC power source and can be carried around, and is therefore useful as a portable device. The inventors of the present invention also disclose in JP-A-2001-247406 that a cartridge containing a drug-impregnated body is a motor. A drug volatilization method for rotating and volatilizing and releasing the drug more efficiently has been disclosed.

However, Japanese Patent Laid-Open No. 2001-24740
The conventional fan-type chemical volatilization device including the one disclosed in Japanese Patent No. 6 is not sufficiently satisfactory in the function of notifying the expiration date of the cartridge containing the chemical-impregnated body. For example, there is a method in which a color change is used by blending a dye impregnated with the drug-impregnated body in association with the amount of the active ingredient, but the end point is unclear, and the expiration date of the cartridge and the life of the dry battery are set to be the same. Even if the method is used, it is difficult to make them consistent because the performance of dry batteries is diverse.

[0004]

DISCLOSURE OF THE INVENTION The present invention has a function of accurately and clearly notifying the expiration date of a cartridge containing a drug-impregnated body, as well as drug volatility and usability, and economical efficiency. The purpose is mainly to provide a chemical volatilization device for indoor use.

[0005]

Means for Solving the Problems and Embodiments of the Invention
In order to solve the above problems, the present inventors perform reading of a power switch and a reset switch, control of a motor power supply, control of an indicator LED, reading of a power supply frequency from a frequency detection diode, and integration of a usage time based on this. It was found that the intended drug volatilization device can be obtained by incorporating a microcomputer circuit, and completed the present invention.

That is, the invention of claim 1 is a chemical volatilization device for volatilizing a chemical impregnated in the chemical-impregnated body from a cartridge accommodating the chemical-impregnated body by rotating a fan, and having a function of displaying a motor usage time. The present invention relates to a drug volatilization device having a microcomputer for reading a power switch, a reset switch, controlling a motor power source, controlling an indicator LED, reading a power source frequency from a frequency detection diode, and integrating a usage time based on the reading. .

The drug volatilization apparatus of the present invention is mainly used for indoor use, and an AC power source is preferably used with a particular emphasis on ensuring stable drug volatilization performance and economical efficiency. That is, when a dry battery is used as the power source, it is advantageous in terms of portability of the device, but it is unavoidable that the rotation speed of the motor gradually decreases as the voltage drops over time, and the dry battery is used to maintain the insecticidal effect. Frequent replacement will increase the cost. In the present invention, this type of chemical volatilization device is regarded as an alternative to the conventional electric mosquito repellent mat or liquid type electric mosquito repellent, and considering that the commercial power source is not so inconvenient for indoor use, the AC power source It is mainly used. For example, if a microcomputer that detects the voltage drop of the dry battery and counts the motor usage time is also incorporated, a dual-purpose type that can use both the AC power supply and the dry battery can be provided.

Under these circumstances, the function of displaying the motor usage time adopted in the drug volatilization apparatus of the present invention is to read the power switch, the reset switch, control the motor power supply, control the display LED, and the frequency detection diode. It is characterized by comprising a microcomputer for reading the power supply frequency of and the integration of the operating time based on the reading. The display function of the present invention is simple and has a small error because the power supply frequency is read and counted, and the usage time of the cartridge, the remaining usable time, and the like can be clearly known.

The power supply circuit for the microcomputer (see FIG. 3) is an AC
This is a circuit that creates a 3-5V DC power supply with a resistor, a capacitor, and a zener diode of a voltage obtained by half-wave rectifying 100V and dividing the voltage, and supplies a current from this power supply to a microcomputer, an LED, a memory and the like. Then, the microcomputer reads the frequency from the frequency detection diode, integrates the motor usage time based on this, and the usage time counted by the microcomputer is stored in the memory. The stored contents of the memory are retained even when the power is turned off, and when the power is turned on again, the memory can be written and read by the instruction of the microcomputer. In addition, the display LED indicates the motor usage time of 1 to 3 stages, for example, 240 hours (12 hours a day for 20 hours).
Needless to say, it is easier to use if it is designed to show days, 360 hours (30 days), and 720 hours (60 days).

The drug volatilization device of the present invention is provided with a cartridge for accommodating the drug impregnated body. Examples of the material of the drug-impregnated material include paper-based, pulp, cellulosic carriers such as viscose, ethylene-vinyl acetate resins, synthetic resin carriers such as olefin polymers, and inorganic carriers such as calcium silicate. However, cellulosic carriers such as naturally-derived paper, pulp and viscose are preferred. Further, as the shape, it is preferable that these are granular or substantially granular and formed so that the average outer diameter thereof is about 3 mm to 10 mm.
You may provide it as a chemical | medical agent impregnation body by forming it in a multilayer form or a honeycomb form.

As the drug used in the present invention, a volatile pyrethroid insecticide capable of adjusting the volatile amount per hour to 0.01 to 0.5 mg and exhibiting a sufficient insecticidal effect with this amount. It is preferable to select the agent. Examples of such agents include those represented by general formula (I)

[Chemical 1] (In the formula, X and Y are the same or different and represent a hydrogen atom, a methyl group, a halogen atom or a trifluoromethyl group,
Z represents a hydrogen atom, a fluorine atom, a methyl group, a methoxymethyl group or a propargyl group), and a fluorine-substituted benzyl alcohol ester compound can be exemplified.

Specific examples of the compound represented by the general formula (I) include 2,3,5,6-tetrafluorobenzyl-chrysanthemate (hereinafter referred to as compound A), 2,3,5.
5,6-Tetrafluorobenzyl-2,2-dimethyl-
3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as compound B), 2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (2,2-
Dichlorovinyl) cyclopropanecarboxylate (hereinafter referred to as compound C), 4-methyl-2,3,5,6-
Tetrafluorobenzyl-chrysanthemate (hereinafter referred to as compound D), 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate ( Hereinafter, referred to as compound E), 4-methyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (2,2-difluorovinyl) cyclopropanecarboxylate (hereinafter referred to as compound F) ), 4-methoxymethyl-2,3,
5,6-Tetrafluorobenzyl-chrysanthemate (hereinafter referred to as compound G), 4-methoxymethyl-2,
3,5,6-Tetrafluorobenzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as compound H), 2,3,4,5,6
-Pentafluorobenzyl-2,2-dimethyl-3-
(2-chloro-2-trifluoromethylvinyl) cyclopropanecarboxylate (hereinafter referred to as compound I),
Or 4-propargyl-2,3,5,6-tetrafluorobenzyl-2,2-dimethyl-3- (1-propenyl) cyclopropanecarboxylate (hereinafter referred to as compound J
Can be named). One kind of these compounds may be used, or two or more kinds of compounds may be used in combination. The compound represented by the general formula (I) has optical isomers and geometrical isomers based on its asymmetric carbon or double bond, and the use of each of these or any mixture thereof is also essential. Of course, it is included in the invention.

In the present invention, it is preferable that the drug-impregnated body is impregnated with 60 mg or more of the above-mentioned drug as a whole. When the amount of the drug impregnated is less than 60 mg, the insecticidal efficacy may be insufficiently sustained. When impregnating the chemical, a solvent, a diluent, a surfactant, a dispersant, a sustained-release agent, etc. may be used as necessary, and various conventionally known impregnation means can be adopted. Furthermore, a stabilizer, a fragrance, a colorant, an antistatic agent, etc. may be appropriately added to the drug-impregnated body, and the drug composition may have other volatile properties as long as it does not hinder the volatile performance. Insecticide, repellent components (for example, hinokitiol, carvone, safrole, citronellol, insecticidal fragrances such as cinnamic aldehyde, etc.), acaricide, bactericide, deodorant, etc. may be added to give a multipurpose composition.

As a method of providing the ventilation part in the cartridge used in the present invention, there are, for example, a method of arranging a large number of opening slits in parallel, a method of fixing a net to holders arranged in parallel, and the like, but not limited to these. Not something.
However, in order to ensure sufficient air permeability so that the condensation of the drug does not affect the volatilization performance, and at the same time to prevent the drug-impregnated body from dissipating, in the case of the opening slit, the slit width is 1 m.
It is preferably at least m and not more than 0.7 times the average outer diameter of the drug-impregnated body. On the other hand, in the case of a net, the distance between the lines is preferably set to, for example, 1 mm or more and 0.7 times or less of the average outer diameter of the drug-impregnated body.

The shape and size of the cartridge can be arbitrarily determined in consideration of the structure of the drug-impregnated body accommodating portion. The drug volatilization apparatus of the present invention is to apply the wind generated by the rotation of the fan to the drug impregnated body to volatilize the drug. For example, the cartridge is mounted on the air outflow side and / or the air inflow side of the sirocco fan. It is more preferable to rotate by rotation because the centrifugal force acts on the drug-impregnated body to enhance the volatilization efficiency of the drug. A protective bar having a slit shape, a mesh shape, or the like may be attached around the cartridge so that a finger or the like does not touch the rotating cartridge. A part of the drug volatilization device that accommodates the cartridge may have the function of the protection bar. Before use, it is preferable to attach a shielding member (for example, a sealing tape) to the ventilation part of the cartridge in order to prevent the drug from volatilizing from the drug impregnated body housed in the cartridge. Is usually peeled off immediately before use.

The specification of the motor used in the present invention is DC3.
It is suitable to drive at ˜5 V and give a rotation speed of 500 to 2000 rpm. Usually, an AC power supply of 100 V is supplied to the motor power supply circuit after voltage drop and rectification.

According to a second aspect of the present invention, in the chemical volatilization device according to the first aspect, a voltage is dropped from an AC power source and DC3 to DC5.
V is created and the power supply circuit for the motor and the power supply circuit for the microcomputer are operated.

The invention of claim 3 is the same as claim 1 or 2.
In the drug volatilization device, the display LED indicates the motor usage time of 1 to 3 stages.

According to a fourth aspect of the present invention, in the drug volatilization apparatus according to any one of the first to third aspects, a cartridge containing the granular or substantially granular drug impregnated body is rotated together with a fan by a motor to form the drug impregnated body. The method employs a method of volatilizing the drug impregnated in the drug impregnated body under the condition that centrifugal force acts.

The drug volatilization apparatus of the present invention thus obtained has not only the drug volatilization performance, usability, and economical efficiency, but also the function of accurately and clearly indicating the expiration date of the cartridge containing the drug-impregnated body. It is extremely useful and practical because it has excellent insecticidal and insecticidal effects against various harmful insects such as indoor mosquitoes or mussels without using fire or heat.

[0021]

EXAMPLES Next, the drug volatilization apparatus of the present invention will be described in more detail based on specific examples and test examples.

Example 1 FIG. 1 is a perspective view of an example of the drug volatilization apparatus of the present invention, FIG. 2 is a sectional view thereof, and FIG. 3 is an electronic circuit diagram thereof. The drug volatilization device 1 includes a ring-shaped cartridge 3 that houses the drug impregnated body 2.
And a sirocco fan 4 disposed inside thereof, and a motor 5 for rotating these to volatilize the drug impregnated in the drug impregnated body 2. When the motor 5 is rotated,
Wind force is generated by the sirocco fan 4, and the air that has flowed in from the upper air intake port 6 passes through the inside of the cartridge 3 and flows out through the opening slit (not shown) and the exhaust port 7. The drug with which the body 2 is impregnated is released into the air. On the outer surface of the chemical volatilization device 1, a power switch 8 connected to an AC power source, a reset switch 9 for resetting the accumulated usage time of the motor, and a display LED (10) for displaying the usage time are attached, and these are for a microcomputer. It is connected to the power circuit board 11 and the motor power circuit board 12.

Here, the power supply circuit for the microcomputer is AC10.
It is a circuit that creates a DC5V power supply with a resistor, a capacitor, and a zener diode of a voltage obtained by half-wave rectifying 0V and dividing the voltage, and supplies a current from this power supply to a microcomputer, LED, memory and the like. Then, the microcomputer reads the frequency from the frequency detection diode, integrates the motor usage time based on this, and the usage time counted by the microcomputer is stored in the memory. The stored contents of the memory are retained even when the power is turned off, and when the power is turned on again, the memory can be written and read by the instruction of the microcomputer.
The motor power supply circuit is also a circuit that creates a DC3V power supply by using a resistor, a capacitor, and the like for a voltage obtained by half-wave rectifying AC100V and dividing the voltage.

In this example, the compound B [2, 3, 5, 6
-Tetrafluorobenzyl-2,2-dimethyl-3-
(1-Propenyl) cyclopropanecarboxylate]
The drug-impregnated body 2 obtained by impregnating 300 mg of granular expanded cellulose beads [trade name: Viscopearl (manufactured by Rengo Co., Ltd.)] having an average outer diameter of about 3 mm with
It was housed in an annular cartridge 3 having an outer diameter of 6.5 cm, an inner diameter of 4 cm and a height of 2 cm. The annular cartridge 3 has an opening slit with a width of 2 mm and a width of 3 m on the side surface over substantially the entire length in the height direction.
Prepare every m. When the display LED is set so as to indicate a motor usage time of 720 hours (60 hours as 12 hours a day), and the drug volatilization device of the present invention (motor rotation speed: set to 1400 rpm) is used in a room of 6 tatami mats. , Was effective in controlling mosquitoes for 60 days. Further, the LED was activated on the 60th day, and the display function was excellent.

Example 2 Instead of the annular cartridge 3 accommodating the granular drug-impregnated body 2 of Example 1, a sheet-shaped nonwoven fabric drug-impregnated body 2 formed in a honeycomb shape having an outer diameter of 6 cm and a thickness of 2 cm is loaded into the cartridge 3. did. The drug-impregnated body 2 was impregnated with 240 mg of the compound G [4-methoxymethyl-2,3,5,6-tetrafluorobenzyl-chrysanthemate]. In addition, the sirocco fan 4, the cartridge 3 and the motor 5
A chemical vaporizer 1 of the present invention was designed according to Example 1 except that the cartridge 3 was not loaded, and the cartridge 3 did not rotate. Set the display LED so that the motor usage time is 360 hours (12 hours a day, 30 days),
Chemical vaporization device of the present invention (motor rotation speed: 1300 r
(set to pm) was used in an 8 tatami living room. Thirty
I was not bothered by mosquitoes for a day, and on the 30th day, the time to replace the cartridge was clearly displayed and it was easy to use.

Test Example 1 Various drug volatilization devices for 360 hours (30 days as 12 hours per day) shown in [Table 1] were prepared according to Example 1 and Example 2. In addition, the compound F [4-methyl-2,3,5,6-tetrafluorobenzyl-2,
2-dimethyl-3- (2,2-difluorovinyl) cyclopropanecarboxylate] was impregnated with 250 mg,
When using dry batteries, two AA batteries (3 V in total) were used. It was used for 30 days in a room of 6 tatami mats, and tested for the indication function of the progress of insecticidal efficacy and the replacement time of the cartridge (degree of clarity of indication on the 30th day). The result is ○,
It was evaluated by Δ and ×, and is also shown in [Table 1].

[0027]

[Table 1]

As a result of the test, the drug volatilization device of the present invention, which mainly uses an AC power source, has stable volatilization performance of the drug and retains an excellent insecticidal effect for a long period of time, while having a function of displaying the replacement time of the cartridge by detecting the frequency. Was also accurate and clear. On the other hand, in the method of blending the dye that is linked with the amount of the drug into the impregnated body, the display function of the replacement time was extremely unclear. In addition, when a dry battery is used instead of the AC power source, the voltage drops with the passage of time, which may reduce the insecticidal effect, and it is difficult to match the replacement time of the cartridge with the life of the dry battery.

[0029]

INDUSTRIAL APPLICABILITY The present invention is useful and practical, having not only the ability to volatilize a drug, usability, and economy but also the function of accurately and clearly informing the expiration date of the cartridge containing the drug-impregnated body. Provide a drug volatilization device.

[Brief description of drawings]

FIG. 1 shows a perspective view of an example of a drug volatilization device of the present invention.

FIG. 2 shows a sectional view thereof.

FIG. 3 shows an electronic circuit diagram thereof.

[Explanation of symbols]

1: drug volatilization device, 2: drug impregnated body, 3: Cartridge, 4: Sirocco fan, 5: motor, 6: intake port, 7: exhaust port, 8: Power switch, 9: Reset switch, 10: Display LED, 11: Power supply circuit board for microcomputer, 12: Motor power base

Claims (4)

[Claims] 1. A cartridge containing a drug-impregnated body,
A drug volatilization device for volatilizing a drug impregnated in the drug impregnated body by rotating a fan, wherein a power switch, a reset switch is read, a motor power source is controlled, a display LED is controlled, and a frequency is used as a function of displaying a motor usage time. A drug volatilization device comprising a microcomputer that reads the power supply frequency from the detection diode and integrates the usage time based on this. 2. A voltage drop from an AC power supply to DC3-5
The drug volatilization apparatus according to claim 1, wherein V is created and a motor power supply circuit and a microcomputer power supply circuit are operated. 3. The display LED indicates the motor usage time of one to three stages, according to claim 1 or 2.
The drug volatilization device according to. 4. A cartridge containing a granular or substantially granular drug-impregnated body is rotated together with a fan by a motor to volatilize the drug impregnated in the drug-impregnated body under a condition where centrifugal force acts on the drug-impregnated body. The chemical vaporization device according to any one of claims 1 to 3, wherein the chemical vaporization device is a system for performing the chemical vaporization.