JPH046548Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention uses heating transpiration, which sucks up the medicinal solution in the bottle with a liquid-absorbing wick and evaporates the drug in the medicinal solution by heating the liquid-absorbing wick with a heating element. Regarding equipment.

[Prior art] As shown in Japanese Utility Model Publication No. 44-8361, the lower part of the liquid-absorbing wick is exposed inside the bottle, and a heating element is arranged around the upper part of the liquid-absorbing wick. It has a net-like top lid and heats the liquid absorption core with a heating element to evaporate the medicine in the bottle.

As shown in Japanese Utility Model Application Publication No. 59-62784, a top cover having a transpiration port is attached to the top of the heating element, and
The area between the upper part of the liquid-absorbing wick and the heating element is opened to the outside air through a vent provided in the body of the vessel, and the outside air introduced through the vent is passed through the periphery and released to the outside through the transpiration port as a rising heat current. It is designed to flow smoothly, so that the medicine evaporated from the liquid absorption core is smoothly evaporated to the outside by the flow of the outside air.

As shown in Japanese Utility Model Application Publication No. 61-69983, the main body of the device has a dome shape that gradually increases in diameter from the top to the bottom, and the ventilation hole at the bottom of the device body passes through the inside to form the transpiration hole at the top. It was designed to communicate with the .

[Problem that the invention attempts to solve]

In the first type, since the top lid is located above the liquid absorbent wick and has a mesh shape, most of the evaporated chemical solution adheres to the top lid, causing contamination. Further, due to contamination, the area through which the evaporated drug passes is reduced and the amount of transpiration is reduced, making it impossible to obtain the desired drug efficacy.

With the second type, the circumference of the liquid absorbing wick and the heating element is vertically aligned with the evaporation port of the top lid, so the heat of the heating element is directly radiated to the top lid, and the rising air current is directly directed to the top lid. The temperature of the top lid tends to rise due to contact with the top lid, which may cause burns if you touch it while carrying it.

For this reason, it is very difficult to match the vertical position of the periphery and the evaporation port, and in fact products with larger transpiration ports are commercially available.

In addition, evaporated chemicals tend to adhere to the vicinity of the evaporation port due to cross winds, etc., and the wind flows around the inside of the top lid, causing the chemicals to adhere to the inside of the device body as well, causing contamination.

In the case of the third type, since the device body has a dome shape with the diameter gradually increasing from the top to the bottom, it is easy for the transpiration agent to accumulate inside the device body, and the internal surface of the device body Because the cold air tends to rise, a chemical condensation phenomenon occurs due to the contact between the cold air and the trapped evaporated chemicals, which tends to cause drug contamination inside the device body, and the device body is disassembled in a short period of time, causing adhesion. Chemicals must be removed and cleaned;
Its operation is troublesome.

Therefore, an object of the present invention is to provide a heating evaporation device that can solve all of the above-mentioned problems.

[Means and actions for solving the problem]

In a heating evaporation device that heats the upper side of a liquid absorbent wick immersed in a chemical solution in a chemical solution bottle with a heating element surrounding the periphery, the main body of the device consists of a main body that houses the chemical solution bottle and a top lid, and the heat generated in the top lid is A large-diameter evaporation hole is formed approximately above the body, and within the large-diameter evaporation hole, a heat receiving part having ventilation holes at least in the center and around the body is provided lower than the upper surface of the top lid and at least a portion thereof is above the heating element. A communication hole is formed in the main body of the device to communicate the ventilation hole with the periphery and communicate the periphery with the outside, and the heat receiving part is heated by the preheating of the heating element and the rise in heat. The evaporated medicine is prevented from adhering to the heat receiving part, the heat receiving part is not rapidly cooled by the cross wind from the large-diameter evaporation hole, and the evaporated medicine is not trapped inside.

〔Example〕

The main body 1 of the device consists of a main body 2 and an upper lid 3, and the main body 2 is an upper main body 4 and a lower main body 5 that are removably connected, and a bottle storage recess 6 is formed in the bottom 4a of the upper main body 4. , bottle storage recess 6
A lamp 7 is attached to the upper side surface 4b, and a lower lamp cover 8 and an upper lamp cover 9 are attached to the lower main body 5.
has a size and shape that can be slidably fitted into the bottle storage recess 6, and a locking hook 11 that engages with the hook 10 formed on the lower lamp cover 8 is formed on the side surface 5a, and a locking hook 11 is formed on the bottom surface. 5
A ring-shaped bottle receiving portion 14 that fits into the concave small diameter portion 13 of the bottle 12 is integrally formed on b.

The bottle 12 has approximately the same shape as the bottle storage recess 6, and has an inner stopper 15 fitted into the upper small diameter portion 12a.
The lower part of the liquid absorbent wick 16 faces inside the bottle 12 and is immersed in the chemical solution, and a plurality of supporting parts 17 provided in the bottle storage recess 6 are attached to the shoulder part 12b of the liquid absorbent wick 16. The bottle 12 is held in contact with the bottle 12 so as not to move slightly, and a gap 18 is formed between the shoulder portion 12b and the bottle storage recess 6.
8 opens to the outside through an annular space 19 between the lower large diameter portion 12c of the bottle 12 and the peripheral wall of the lower body 5 and a lower ventilation hole 20 formed at the bottom of the lower body 5.

The upper lid 3 has a cylindrical shape and is attached to the cylindrical upper part 4c of the upper main body 4, forming an annular space 22 between it and a ring-shaped heating element 21 attached to the center of the upper part 4c. There is also a heating element 2 on the top.
A large-diameter evaporation hole 23 is formed concentrically with 1, and an umbrella-shaped heat receiving part 24 is formed below the large-diameter evaporation hole 23.
is provided to form a substantially annular side ventilation hole 25 between the large-diameter evaporation hole 23, and a central ventilation hole 26 is formed in the center of the heat receiving part 24.
The annular space 22 is open to the outside through a ventilation hole 22a.

The upper part of the liquid absorbent wick 16 faces into the heating element 21 through a hole 27 formed in the bottom 6a of the bottle storage recess 6, and forms a ventilation circumference 28 between the hole 27 and the liquid absorbent wick 16. A circumference 29 is formed between the liquid-absorbing wick 16 and the heating element 21, and the ventilation circumference 28 forms a space 30 between the upper body 4 and the bottle storage recess 6.
The space 30 opens into the annular space 22 through an upper ventilation hole 31 and into the annular space 19 through a lower ventilation hole 32 .

As shown in FIG.
It is attached by engaging with the locking portion 21a of No. 1.

Then, the concave small diameter portion 13 of the bottle 12 is fitted into the bottle receiving portion 14 of the lower body 5, positioned and attached, and the lower body 5 is slid so that the bottle 12 is stored in the bottle storage recess 6 of the upper body 4. The lower body 5 is connected to the upper body 4 by engaging the locking hook 11 with the hook 10 in a positive fit.

In this state, when the cord 35 is plugged into a power outlet and energized, the lamp 7 lights up and is visible through the upper lamp cover 9, and also illuminates the bottle 12 through the lower lamp cover 8, causing the liquid level inside the bottle to be illuminated. There is an illumination effect by checking the liquid level by illuminating the bottle 12 and the lower body 5 by illuminating the bottle 12 and the lower body 5. That is, the upper and lower lamp covers 9 and 8, the bottle 12, and the lower body 5 are made of a translucent material.

At the same time, the heating element 21 generates heat and the liquid absorption wick 16
The upper part of the bottle 12 is heated to evaporate the medicine in the medicine sucked up from inside the bottle 12, and volatilize it to the outside through the large-diameter evaporation hole 23. At the same time, the heat receiving part 24 is heated by the heat rise and preheating of the heating element 21. .

On the other hand, the heat generated by the heat generating element 21 described above generates a thermal rising air current, and outside air flows into the apparatus main body 1 as described below.

Lower ventilation hole 20 → annular space 19 → gap 18 →
Ventilation circumference = 28 → Circumference = 29 and upper ventilation hole 31 →
The outside air flows through the central ventilation hole 26 and the side ventilation hole 25 → the large-diameter evaporation hole 23 .

As a result, since outside air flows around the bottle 12, it is possible to cool the bottle 12, suppress the temperature rise inside the bottle, and prevent leakage of chemical liquid from the liquid absorption wick 16 due to an increase in internal pressure. The drug can be smoothly released to the outside without being trapped.

Lower ventilation hole 20 → annular space 19 → gap 18 →
Outside air flows through the ventilation circumference 28 → circumference 29 → annular space 22 → side ventilation hole 25 → large diameter evaporation hole 23.

Lower ventilation hole 20 → annular space 19 → lower ventilation hole 32 → space 30 → upper ventilation hole 31 → annular space 22 → side ventilation hole 25 and center ventilation hole 26 →
Outside air circulates through the large-diameter evaporation holes 23.

Ventilation hole 22a → annular space 22 → side ventilation hole 2
5 and the central ventilation hole 26 → the large-diameter evaporation hole 23 and outside air flows therethrough.

The shape of the heat receiving part 24 is as shown in FIGS. 6a to 6h, and it may be attached to the upper lid 3 via a rib 24a.

In other words, the heat receiving part 24 may be provided at least in part on the heat generating element 21 and has ventilation holes in the center and around the center, and the shape of these ventilation holes is arbitrary. For example, the shape of the heat receiving part 24 is circular, polygonal, star-shaped, etc., and the surrounding ventilation hole can be variously shaped, such as a slit, a hole, or an annular shape. For example, the structure may be such that it receives radiant heat from the side of the heating element.

The temperature at which chemical adhesion is difficult to occur varies depending on the type of chemical, but when used as an electric mosquito repellent, aliphatic hydrocarbon solvents and general pyrethroid insecticides such as allethrin, phenothrin, flamethrin, and prarethrin are used. When using a chemical containing , the temperature of the heat-receiving part should be kept at 60°C or higher, preferably 70°C or higher.

For this purpose, the temperature of the heating element can be increased, and a suitable temperature of the heating element is 70°C or more and 450°C or less.

For example, when using a heating element with a temperature of 120 to 130°C, by setting the distance between the heating element and the lower surface of the heat receiving part to less than 10 mm, preferably less than 5 mm, the temperature of the heat receiving part can be reduced to 70°C.
Can be kept above ℃.

In addition, the heat receiving part can be integrally formed with the top lid via a bridge, etc. In this case, by making the bridge thinner or keeping a distance from it, it is possible to reduce the conduction heat from the heat receiving part to the top lid. Heat conduction can be suppressed.

In addition, the heat receiving part may be made separate from the top lid and fixed to the top lid, heating element, device body, etc. by adhesive, welding, etc.
It may be fixed and installed by screwing, fitting, etc.

The material of the heat receiving part can withstand the heat during use, such as metals such as aluminum, stainless steel, copper, and brass, ceramics such as alumina, glass, and ceramics, and polymer resins such as phenol resin, nylon resin, and polypropylene resin. It's fine as long as it's wet.

Further, the shape of the heating element is not limited to a ring shape, but may be U-shaped or a combination of a plurality of heating elements.

In addition, the heat receiving part is not limited to having a flat surface, but may have a curved surface, a bridge for joining with the top cover, a rib-shaped object for rectifying rising air current, and even small ventilation holes. may be provided.

The upper lid 3 can also be formed integrally with the upper main body 4.

Further, the shapes of the device main body 1 and the bottle 12 are not limited to those in the embodiment, and may be any shape.

The fitting between the upper main body 4 and the lower main body 5 is not limited to a sliding type but is arbitrary.

In addition, the chemicals used are insecticides, disinfectants, fragrances,
Conventionally used transpiration agents such as deodorants can be used. Examples of insecticides include pyrethroid insecticides such as allethrin, crusulonforte, flamethrin, phenothrin, prarethrin, and permethrin, sumithion, diazinon,
These include giraffe-based insecticides such as DDVP and Marathon.

[Effect of idea]

The heat receiving part 24 is located inside the large-diameter evaporation hole 23 and at least above the heating element 21 , and each of its ventilation holes 25 and 26 is located between the liquid absorption core 16 and the periphery of the heating element 21 .
The heat radiated from the heating element 21 rises and hits the heat receiving section 24 once through the inside of the device main body 1 and communicates with the outside through the ventilation hole. Since it rises from the pores 25 and 26 to the outside through the large-diameter evaporation hole 23, most of the preheat radiated from the heating element 21 is absorbed by the heat receiving part 24, the heat receiving part 24 becomes hot, and the surrounding area of the heat receiving part 24 is heated. For example, the upper surface also becomes warm due to radiant heat, producing a heat-retaining effect, and the inside of the device body 1, the circumference 29 of the liquid absorbing wick 16 and the heating element 21, and the ventilation holes 25 and 26 of the heat receiving part 24 are heated through the ventilation holes of the device body 1. A rising heat current is also naturally generated through the large-diameter evaporation hole 23.

On the other hand, the drug evaporated by heating is evaporated from the vicinity of the heating element heating part by its own thermal updraft and the naturally generated thermal updraft, and is transferred to the heat receiving part 24.
, the heat updraft from earlier is added, further promoting upward transpiration, passing through the ventilation holes 25 and 26 and transpiring upward from the large-diameter evaporation hole 23. At the same time, due to the heat retention effect of the heat receiving part 24, the transpiration agent is not cooled. It prevents condensation and evaporates the chemicals at the bottom of the heating element 21.
It is possible to prevent the particles from rising smoothly through the large-diameter evaporation holes 23, evaporating, and being trapped inside the device main body 1.

Furthermore, even if the medicine comes into contact with the heat receiving part 24, the medicine will not adhere to it because the heat receiving part 24 is hot.
In other words, normally when heat-evaporated drugs come into contact with a cold wall and are rapidly cooled, drug condensation occurs and the drug adhesion phenomenon occurs, but the above-mentioned adhesion phenomenon does not occur when the drug comes into contact with a hot surface. .

Furthermore, even if the distance between the top lid and the heating element is long, by setting the heat receiving part 24 with good thermal conductivity at a higher height, the medicine can be vaporized from the large-diameter evaporation hole 23 without the medicine adhering to the inside of the device. I can do it.

In addition, since the heat receiving part 24 is disposed within the large-diameter evaporation hole 23 and is lower than the top surface of the upper cover 3, even if a cross wind blows, the cross wind does not directly hit the heat receiving part, preventing it from being cooled. 24, it is difficult to cool down due to the high temperature, and the above-mentioned chemical adhesion phenomenon associated with rapid cooling due to cross winds is less likely to occur.Furthermore, at least double heat rising air flows from the central and surrounding ventilation holes 26 and 25 of the heat receiving section 24. occurs and large-diameter evaporation holes 2
3 to the outside air, so even if crosswinds or atmospheric turbulence occur, the effect on drug evaporation is significantly suppressed.

Combined with the above, the evaporated drug does not adhere to the vent area, the area through which the drug passes is reduced and the amount of transpiration does not decrease, and the desired drug efficacy can be fully expected. Since the portion 24 absorbs a lot of heat, the temperature of the upper surface around the large-diameter evaporation hole 23 of the upper lid 3 does not rise much, preventing overheating and reducing the risk of burns.Furthermore, the transpiration agent does not get trapped inside the device body 1. Since there is no evaporative agent attached to the inside of the device main body 1, there is no need to disassemble and clean it.

In addition, since the temperature of the top surface of the top cover 3 can be lowered as described above, even if the distance between the top cover 3 and the heating element 21 is shortened and the overall height of the device main body 1 is lowered, the temperature of the top surface of the top cover 3 can be kept low according to electrical appliance regulations. The temperature can be maintained within the legally specified temperature range.

In other words, according to the Electrical Appliances and Materials Control Law, an electric fumigation insecticide that uses 100V current has an external temperature of 70℃.
Since there is a regulation that the temperature around the drug evaporating part be below 70℃, in conventional devices, it is necessary to keep a large distance between the top lid and the heating element in order to keep the temperature around the drug evaporating part below 70℃, which increases the overall height. According to such a heating evaporation device, even if the distance between the top lid and the heating element is shortened, the temperature around the above-mentioned drug evaporation portion can be maintained at 70° C. or lower.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are cross-sectional views taken along lines - and lines in FIG. 3, FIG. 3 is a plan view, FIG. 4 is a front view, and FIG. 5 is a side view. Figures 6a to 6h are cross-sectional views showing different embodiments of the heat receiving section. 1 is the main body of the device, 2 is the main body, 3 is the top lid, 12 is the bottle, 16 is the liquid absorbing wick, 21 is the heating element, 23 is the large-diameter evaporation hole, and 24 is the heat receiving part.

Claims (1)

[Scope of utility model registration request] The upper side of the liquid absorbent wick 16, which is inserted into the chemical liquid bottle 12 and partially immersed in the chemical liquid, is heated by the heating element 21 surrounding the circumference 29, so that the liquid is absorbed into the liquid absorbent wick 16. In a heating evaporation device for evaporating a drug in a medicinal solution, a device body 1 is formed by a main body 2 that houses the medicinal solution bottle 12, and a top lid 3 that is either integral with the main body 2 or separate from the main body 2 and disposed above a heating element 21. In addition, the heating element 21 in the upper lid 3
A large-diameter evaporation hole 23 is formed substantially above the large-diameter evaporation hole 23, and a ventilation hole 2 is provided inside the large-diameter evaporation hole 23 at least in the center thereof.
6 and a heat receiving part 24 having a ventilation hole 25 around it.
is provided so that it is lower than the upper surface of the large-diameter evaporation hole 23 of the upper lid 3 and at least partially located above the heating element 21, so that the ventilation holes 25 and 26 of the heat receiving section 24 are connected to the liquid absorption wick 16 and the heating element 21. The circumference of 〓 connects to 29,
A heating evaporation device characterized in that a ventilation hole is formed below the heating element 21 of the device main body 1 to communicate the circumference 29 to the outside of the device main body 1.