JPH0847362A - Fumigator for chemical - Google Patents

Abstract

PURPOSE:To improve safety to heat with no use of a cover and enable proper fumigation for chemicals of both low-temperature and high-temperature types by dividing the heating element into two upper and lower layers and allowing the upper layer to effect such low-tmperature heating that a human body is not scalded even when it touches partially and the lower one to effect high- temperature heating. CONSTITUTION:In a chemical fumigator 1 in which a chemical vessel 4 is equipped with a wick 6 for absorbing the chemical and the wick 6 is heated at the upper part for fumigation, the heating elements 51, 52 for fumigating a desired chemical are divided into two upper and lower layers so that they oppose to each other. Thus, the upper heating element 51 is used for low temperature heating at about 50 deg.C, while the lower heating element 52, for high- temperature of 80-150 deg.C. Additionally, these heating elements 51, 52 are electrically connected so that they may be separately controlled and energized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention provides a cover on the upper surface of a heating element when heat-evaporating insecticides such as flying insects, bactericides, deodorants, fragrances and other liquid agents for a long time. The present invention relates to a chemical evaporation device that can be safely used even if it is not provided.

[0002]

2. Description of the Related Art As a device for evaporating and volatilizing an insecticidal component of a liquid insecticide almost uniformly over a long period of time, the upper part of a wick for sucking an appropriate amount of the insecticide from a container filled with the insecticide has a cylindrical shape. There is a so-called electric mosquito trap that is inserted into an electric heater and heats the outer periphery of the suction core to evaporate.
For example, Japanese Utility Model Publication No. 44-8361 and Japanese Examined Patent Publication No. 4-1117.
Many are disclosed in Japanese Patent Publication No. 2 and the like.

[0003]

In a conventional so-called electric mosquito trap for evaporating a liquid insecticidal agent filled in a conventional container, an electric heater has a single ring shape or a cylindrical shape, and a set temperature, for example, is set by energization. It is heated within the range of 80-150 ° C. Therefore, when inhaling air from the peripheral gap with the liquid absorption core at the lower end of the electric heater and discharging it into the atmosphere from the upper end,
The insecticidal component, which is heated by the heater and evaporated from the liquid-wicking core, is mixed with the air flowing as an ascending airflow in the inner space of the heater and is then released. However, since the electric heater has a high temperature of 80 to 150 ° C., there is a risk of burns if the heating element is accidentally brought into contact with a finger or a part of the skin during use. For this reason, in the conventional electric mosquito catcher using a liquid chemical that does not use a mat, it is necessary to dispose a cover on the upper surface of the heating element or to have a structure such that fingers or the like do not directly touch it. Further, since the electric heater type heating element holds a predetermined temperature so as to be suitable for evaporation of the chemical liquid, the chemical liquid to be used is limited.

According to the present invention, the heating element is of the upper and lower two-layer type, the upper portion has a low temperature heat generation so as not to cause a burn even if it touches a part of the human body, and the lower portion has a high temperature heat generation, thereby eliminating the use of a cover. The object of the present invention is to improve the safety and to appropriately evaporate the chemicals for both high temperature evaporation and low temperature evaporation at a temperature suitable for the evaporation by controlling the energization of the upper and lower heating elements.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and a heating element for inserting an upper part of a liquid absorbent core to heat the liquid absorbent core to evaporate a desired chemical liquid is provided in upper and lower two-layer type. The upper heating element is used for low temperatures of about 50 ° C. or lower, the lower heating element is used for high temperatures of 80-150 ° C., and the upper and lower heating elements can be individually energized and heated. The point is that they are electrically connected.

[0006]

The heating element for inserting the upper part of the liquid absorbent core and heating it to evaporate the desired chemical solution is vertically arranged as a two-layer structure, and is placed vertically above and below the upper and lower heating elements. A notch for inserting an absorbent core of a shape or the like is formed, and the absorbent core is inserted into the notch to enable heating, and the upper heating element is about 50 ° C. or less, preferably 35-45 ° C. The lower heating element is used for the lower heating element and the lower heating element is used for the high temperature of 80 to 150 ° C., and the upper and lower heating elements are electrically connected to each other so that they can be heated by controlling energization. As a result, the transpiration temperature of the drug
When using a high-temperature evaporation chemical, both upper and lower heating elements are energized to evaporate at a high temperature, and in the case of a low-temperature evaporation chemical, only the upper heating element is energized to evaporate at a low temperature. Therefore, the heater temperature can be controlled in accordance with the proper evaporation temperature of the chemical solution used, and the upper heating element can always maintain a normal temperature or a low temperature of about 50 ° C. or less even when energized. It can be used safely without providing it. Further, since the cover is not provided on the upper surface, 100% of the evaporated chemical liquid is discharged to the outside of the device. Therefore, a part of the evaporated chemical liquid on the back surface of the cover does not condense and the device is not contaminated, and the evaporation effect can be enhanced.

[0007]

EXAMPLES The chemical vaporization apparatus of the present invention will be described below with reference to the illustrated examples. In the figure, reference numeral 1 denotes an evaporator main body for heating and evaporating a liquid chemical solution such as an insecticide.
Has a required shape and size, and either the lid 2 or the bottom 3 of the vaporizer main body 1 or both of them can be attached to and detached from the main body 1, whereby the liquid medicine can be stored in the vaporizer main body 1. It is configured so that the filled chemical solution container 4 can be stored.

In the illustrated embodiment, the bottom 3 can be attached to and detached from the main body 1 of the evaporator, and the lid 2 is integrated with the main body 1 so that the chemical solution container 4 can be exchangeably housed in the central portion inside the bottom 3. In addition, when carrying the evaporator main body 1, the evaporator main body 1 may be fixed at a predetermined position inside the bottom so as not to inadvertently move. When the bottom 3 is detachable as described above, the lid 2 is integrated with the main body 1. On the contrary, bottom 3
Can be integrated with the main body 1 and the lid 2 can be detachable,
Further, the structure of the evaporator main body can be adopted in various forms, such as directly attaching the evaporator main body having the heating element to the chemical solution container to be integrated, and is not limited to the illustrated structure. .

Further, a heating element 5 which generates heat by passing electricity is disposed in the main body of the evaporator, and a through hole provided in the center of the heating element 5 is provided with the inner peripheral surface as shown in the figure. The liquid absorbent core 6 is inserted so that a required gap C is formed. Then, the liquid medicine container 4 sucked up by the liquid absorption core 6 by the capillary phenomenon.
The drug solution is heated and evaporated by a heating element without damaging the insecticidal active ingredient.

The liquid medicine container 4 is filled with a desired liquid insecticide and other chemicals, and the liquid absorbent core 6 is inserted so as to almost reach the bottom of the container, and the upper end of the liquid absorbent core 6 is removed from the container. The protruding core end is heated by the heating element 5 so as to protrude. If the liquid suction core 6 sucks up the liquid medicine by the capillary phenomenon, the material is felt-like,
The material is not limited to a woven string shape, a ceramic shape, or the like, and can be appropriately adopted.

The heating element 5 is made of a material such as ceramic that generates heat when energized. It is composed of an upper heating element 51 for low temperature and a lower heating element 52 for high temperature in a two-layer structure. The body 51 has a maximum temperature of 50 so that it does not get burned in a short time even if it is touched by fingers.
It shall be heated below about ℃, and the lower heating element 5
2 is to be heated at a set temperature within the range of 80 to 150 ° C., and the upper and lower heating elements 51 and 52 are set to a preset temperature for the upper heating element even when the lower heating element for high temperature is energized and heated. (The temperature is not higher than about 50 ° C.) and the temperature is not increased.

The upper heating element 51 and the lower heating element 52 are integrated, but a gap 54 is provided between the upper and lower heating elements 51 and 52 for heat insulation, or a heat insulating material 53 such as glass wool is used. The upper and lower heating elements 51, 52 are sandwiched and integrally joined, and a transparent core for inserting a liquid absorption core such as a circle or a polygon having a diameter slightly larger than the outer diameter of the liquid absorption core 6 is provided in the substantially central portion of the upper and lower heating elements 51, 52. The hole 5H is bored, and an appropriate peripheral gap C is provided between the liquid absorbing core and the through hole.

Further, both upper and lower heating elements 51, 5 which are vertically opposed to each other.
2 is individually electrically wired and individually and selectively energized, and is connected to the outer peripheral surface of the liquid absorption core depending on the heat generation of the upper and lower heating elements 51 and 52 and the type of the chemical liquid evaporated by the heating elements. The clearance C between the through hole 5H and the inner peripheral surface is determined so that the chemical liquid is effectively heated and evaporated, and is 7 mm or less, preferably 1 to 3 mm.

The heating element 5 is constructed by vertically assembling both upper and lower heating elements 51 and 52, which are integrated as shown in FIG.
As in the second embodiment of the present invention shown in FIG. 5, it can be further divided into two right and left parts. In the case of dividing into the left and right sides, a semicircular arc having a slightly larger diameter so that the shape of one end edge thereof has a predetermined circumferential gap from the outer diameter of the liquid absorbent core 6 and other cutouts 5H having a shape through which the liquid absorbent core can be inserted. While being formed, the shape of the end on the side opposite to the cutout is made into an appropriate shape so that it can be attached to the evaporator main body 1. The left and right two-divided heating elements 5A and 5B formed in this way have symmetrical shapes, and those having the semi-arc shape or other shape notch on one edge as described above are mutually semi-arc shapes. These two are used as a set by arranging them so that the notches of the two are butted against each other.
As shown in FIG. 4, the two heating elements 5A and 5B are attached to the evaporator main body 1
Are to be fixed respectively.

In addition, the heating elements 5A and 5B in which the upper and lower heating elements are integrated and further divided into two left and right parts, which are opposed to each other, generate left and right heat separately from the upper and lower heating elements. The bodies 5A and 5B are individually wired so that the left and right heating elements can be individually energized, and a gap C2 of 5 mm or less is provided between the abutting surfaces of the two heating elements 5A and 5B. Air is sucked into the circumferential gap between the cutout inner circumferential surfaces of the heat generating elements 5A and 5B and the outer circumferential surface of the liquid absorption core, which face each other, and the air from the heat generating element butting gap C2. It is designed to generate an updraft. When the heating elements are heated by the energization of the heating elements 5A and 5B configured as described above, an ascending air current is generated in the circumferential gap, and the air in the evaporator main body is sucked through the lower opening of the circumferential gap, and Air is also sucked in from the gaps between the heating elements to be provided, and an appropriate upward airflow is generated in the gaps between the heating elements, so that the insecticidal active ingredient can be volatilized over a wider range and stronger than before.

As the drug used in the present invention, various conventionally used drugs can be used. When high temperature 80-150 degreeC is used as a heating element, it is evaporated at high temperature. For example the following are used: (±) -3-allyl-2-methyl-4-oxo-2-cyclopentenyl (+)-cis / trans-chrysanthemate (generic name: d1.d-T80-allethrin) [5- (2-propynyl ) -2-Furyl] methyl
(+)-Cis / trans-chrysanthemate (generic name:
d-T80-Furamethrin) (+)-2-methyl-4-oxo-3- (2-propynyl) -2-cyclopentenyl (+)-cis / trans-chrysanthemate (generic name: d, d-T80 -Praretrin)

As the chemicals for low temperatures (about 50 ° C. or lower), various fragrances are used, and the following insecticides and insect repellents are adopted. (EZ)-(±) -1-ethynyl-2-methyl-2-pentenyl (+)-cis / trans-chrysanthemate (generic name: EZ-empentrin)

Therefore, in the chemical vaporizing apparatus constructed as described above, for the chemical vaporizing at a predetermined high temperature, the two heating elements 51, 52 arranged above and below are simultaneously energized for thermal vaporization. As a result, the lower heating element 52 is heated to a preset temperature of 80 to 150 ° C., while the upper heating element 51 is heated to a temperature of about 50 ° C. or less, preferably 35 to 45 ° C., which is lower than this temperature. The chemical liquid sucked up by the capillary phenomenon in the core is heated and evaporated. In the case of chemicals that evaporate at a low temperature, such as various fragrances and EZ-empentrin, only the upper heating element 51 is energized and the lower heating element is not energized. Thereby, the upper heating element 51
Is heated only to about 50 ° C. or lower, and the chemical solution is heated and evaporated by the upper heating element. When the heating element is heated at the set temperature by selectively energizing the heating element of the upper and lower two-layer type as described above, the active insecticidal ingredient is obstructed by obstacles such as the back surface of the upper cover by the air entering from the main body of the evaporator. It is possible to volatilize over a wider range and more powerfully than before.

When a chemical to be evaporated at a low temperature is heated by using a lower heating element for a high temperature, the evaporation of the drug solution becomes higher than a set value, which causes rapid evaporation and shortens the number of days of use, resulting in short-term use. The effect can be enhanced, and when the size of the room to be used and the rapid effect are expected in this way, the transpiration amount can be adjusted.

In addition, if it is desired to extend the usage period,
Type of drug, concentration of drug, volume of drug, adjustment of number of days of use, control of transpiration amount by material of evaporation core (liquid absorption core), etc.
Or, by considering the effect, safety to humans, economical efficiency, etc. by using the method that combines these requirements,
These requirements can be freely selected to provide consumers with a convenient device for evaporating chemicals, including electric mosquito traps.

[0021]

In the apparatus for vaporizing a drug of the present invention, heating elements for inserting the upper part of the liquid-absorbing core and heating it to evaporate a desired drug solution are vertically arranged as a two-layer type, and are arranged vertically opposite each other. The heating element is for low temperature below 50 ° C, the lower heating element is 80-15
Since it is for high temperature of 0 ° C and the upper and lower heating elements are electrically connected so that they can be individually energized and controlled for heating, the appropriate evaporation temperature of the drug can be used for both high temperature and low temperature. The heater temperature can be controlled according to the evaporation temperature, and since the upper heating element is always cold, it can be used safely without providing a cover on the upper portion of the heating element.
There is an advantage that the chemical solution can be very efficiently released without a part of the evaporated chemical solution adhering to the back surface of the cover. In addition, the heating element to be installed inside the vaporizer main body 2
The heating element is divided into two parts, and a notch for inserting the liquid absorption core is formed on the facing surface of each heating element, and the two heating elements on the left and right sides are arranged opposite to each other with a gap therebetween, and the heating elements on the left and right sides are arranged respectively. Since they are electrically connected so that they can be individually energized and heated, air is also drawn in through the gaps between the heating elements that are placed opposite to each other,
A moderate updraft is generated in the heat generating body, and the insecticidal active ingredient can be more strongly vaporized over a wider range than before, and the appropriate evaporation temperature of the drug is high or low. There is an advantage that the heater temperature can be controlled according to the above.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a chemical evaporation device of the present invention.

FIG. 2 is a plan view of a heating element portion.

FIG. 3 is an explanatory diagram of an example in which a heating element is different.

FIG. 4 is an explanatory view of a further different embodiment of the heating element.

FIG. 5 is an explanatory diagram of an example in which a heating element is different.

[Explanation of symbols]

 1 Evaporator Main Body 2 Lid 3 Bottom 4 Chemical Solution Container 5 Heating Element 51 Upper Heating Element 52 Lower Heating Element 5H Through Hole for Inserting Liquid Absorption Core 6 Liquid Absorption Core C Circumference C2 Gap

Claims (2)

[Claims] 1. A chemical vaporizer which heats an upper portion of a liquid absorption core of a liquid medicine container having the liquid absorption core to evaporate the liquid chemical, and inserts an upper portion of the liquid absorption core to heat the liquid to evaporate a desired liquid chemical. The heating elements to be arranged are vertically arranged in a two-layer structure, and the upper heating element is for low temperatures of about 50 ° C. or lower, and the lower heating element is 8
A chemical vaporization device characterized in that it is used for high temperatures of 0 to 150 ° C., and the upper and lower heating elements are electrically connected so that they can be individually energized and heated. 2. A chemical vaporizer which heats an upper portion of a liquid absorbent core of a liquid medicine container having the liquid absorbent core to evaporate the liquid medicine, and in which a desired liquid medicine is vaporized by inserting the upper portion of the liquid absorbent core and heating it. The heating elements to be arranged are vertically arranged in a two-layer structure, and the upper heating element is for low temperatures of about 50 ° C. or lower, and the lower heating element is 8
For high temperature of 0-150 ℃, this heating element is divided into two left and right, two heating elements are placed opposite to each other with a gap between them.
Further, the chemical vaporization device is characterized in that the left and right heating elements and the upper and lower heating elements are electrically connected so that they can be individually and electrically heated.