JPH0534543Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention uses a liquid absorbent wick to suck up chemicals such as insecticides/repellents, deodorizers, disinfectants, and fragrances in bottles.
The present invention relates to a heating evaporation device that evaporates the liquid by heating the liquid absorbent core with a heating element.

[Conventional technology]

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 gap 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 passes through the gap and is 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 is formed into a dome shape whose diameter gradually increases 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 .

As shown in Japanese Utility Model Publication No. 46-8113, a cover body is provided around the heating element, a gap is formed between the cover body and the inner peripheral surface of the device body, and the lower part of this gap is communicated with the ventilation port. , with the upper part communicating with the volatilization hole.

[The problem that the idea aims to solve]

With the first and second heating evaporation devices, the heat of the heating element is directly transmitted to the top lid and the device body, so the temperature of the top lid and device body tends to rise, and if you touch it while carrying it while evaporating the drug, you may get burned. This may occur.

In the case of the second heating evaporation device, since the device body has a dome shape that gradually increases in diameter from the top to the bottom, it is easy for the transpiration agent to get trapped inside the device body. Because cold air tends to rise to the surface, a chemical condensation phenomenon occurs when the cold air comes into contact with the trapped evaporated medicine, which tends to cause chemical contamination inside the device body, and the device body may be disassembled in a short period of time. It is necessary to remove and clean the adhered chemicals, which is a troublesome operation.

In the third heating transpiration device, the car body can prevent the heat of the heating element from being directly transmitted to the device body, but since air does not flow between the heating element and the cover body, the evaporated drug can be absorbed. It rises smoothly and cannot be volatilized through the volatilization hole.

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

[Means and actions for solving the problem]

This is a heating evaporation device in which a cylindrical cover body is provided around a heating element to form air passages between the heating element and the cover body and between the cover body and the main body of the device. This is a heating evaporation device in which an air passage is formed between the
Air can be allowed to flow between the heating element and the cover body and between the cover body and the main body of the device.

〔Example〕

As shown in FIG. 1, the device main body 1 includes a lower container 2
The upper container 3 has a hollow shape, and the lower container 2 has a peripheral wall 4 and a bottom wall 5 and has a substantially rectangular planar shape, and the bottom wall 5 has a bottle mounting recess 6 and a through hole 7 formed concentrically. In addition, a cylindrical support base 8 is formed near the outer periphery of the bottle mounting recess 6, and a vertical gap 9 is formed between the two.
A lower opening 10 opening into the vertical gap 9 and a lower ventilation hole 12 opening into the space 11 between the peripheral wall 4 and the support base 8 are formed in the bottom wall 5 .

The upper container 3 has a peripheral wall 13 and an upper wall 14 in the same planar shape as the lower container 2, and the upper wall 14 is formed with a volatilization hole 15, and the lower part of the peripheral wall 13 and the upper part of the peripheral wall 4 of the lower container 2 are engaged. The device main body 1 is formed by combining them in this manner.

A heating element 16 and a cylindrical cover 17 are provided inside the apparatus main body 1, and the heating element 16 has a ring shape and is connected to the mounting plate 1 which is engaged with the engagement recess 8a of the support base 8.
8, and the cover body 17 is provided at the first
As shown in FIGS. 3 and 3, a plurality of upward pieces 20 are integrally formed on the upper end surface of the cylinder 19 at intervals in the circumferential direction, and an umbrella-shaped heat receiving plate has an upper ventilation hole 21 in the upper part of the cylinder 19. 22 are integrally provided via a plurality of connecting pieces 23 to form an upper opening 24 between the heat receiving body 22 and the cylindrical body 19, and the cylindrical body 19 abuts the upper part of the support base 8, and The upward piece 20 is attached so as to come into contact with the inner surface of the upper wall 14, and the cylindrical body 19 and the heating element 16
A vertical gap 25 is formed between the cylindrical body 19 and the inner surface of the upper wall 14.

The bottle 27 has an upper small diameter portion 27a removably attached to the bottle attachment recess 6, and the liquid absorbent core 28 faces into the heating element 16 through the through hole 7.

A plug 29 is attached to one side of the device main body 1, and the plug 29 is connected to a fuse 30,
The lamp 32 and the heating element 16 are electrically connected through a switch 31, and when the plug 29 is inserted into an outlet and the switch 31 is turned on, the lamp 32 is turned on at the same time as the heating element 16 is energized.

Plug 29 and heating element 1 in the device main body 1
A vertical ventilation hole 33 penetrating vertically is formed at a position offset to one side between the wall surface 34 and the drug-containing air flow A when the plug 29 is inserted into a vertical outlet provided on the wall surface. A clean air flow B is generated between the two, and it is possible to prevent the medicine from adhering to the wall surface 34.

Since the heating element 16 is surrounded by the cover body 17, the heat of the heating element 16 is not directly transmitted to the device body 1, especially the peripheral wall, and the temperature of the device body 1 can be lowered. Even if you do, you won't get burned.

For this reason, there is no need to increase the distance between the heating element 16 and the peripheral wall more than necessary, and the device main body 1 can be made smaller.

A thermal rising air current is generated by the heat of the heating element 16, but the thermal rising air current is prevented from escaping to the outside by the cylindrical cover body 17 and can rise rapidly toward the upper volatilization hole 15, allowing the volatilized drug to be efficiently evaporated.

In addition, since outside air flows in through the lower opening 10, the vertical gap 9, and the vertical gap 25 between the heating element 16 and the cover body 17, not only does the above-mentioned upward heat flow become smoother, but also the vertical gap 25 Due to the heat insulating effect of the circulating outside air, it is possible to reduce the transmission of heat from the heating element 16 to the cover body 17, and the temperature of the main body 1 of the apparatus can be further lowered.

In addition, since the drug is heated and kept at a higher temperature, the evaporated particles of the drug are maintained at an appropriate level, making it difficult for drug coagulation to occur, and furthermore, drug adhesion does not occur.

In addition, a thermal upward current of clean air is generated that passes through the lower ventilation hole 12, the space 11, and the void 26 toward the volatilization hole 15, and the thermal upward current rises to envelop the volatilized chemical, so that the volatilization hole 15 The adhesion of chemicals to the skin can be significantly suppressed.

Furthermore, due to the same heat insulation effect as described above, the device main body 1
temperature can be lowered.

In this way, an ascending hot air current containing the drug and clean first and second annular rising hot air currents surrounding it are generated within the device main body 1, so that adhesion of the drug to the wall surface is suppressed.

Further, since only the cover body 17 is generally made of a high-cost heat-resistant material, and the device main body 1 can be made of an inexpensive material such as polypropylene, a good heating evaporation device can be obtained at low cost.

In addition, the temperature of the inside and outside of the cover body 17 is lower on the outside, and the high heat of the inside high-temperature rising air does not come into direct contact with the vicinity of the volatilization hole 15, so the temperature around the volatilization hole 15 is Suppress the rise to 70℃
It becomes easier to keep it below.

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℃.
In order to keep the temperature around the drug evaporating part below 70℃, it is necessary to keep a large distance between the top lid and the heating element in conventional equipment, which increases the overall height and increases the volatilization hole. However, according to the heating evaporation device according to the present invention, even if the distance between the upper wall and the heating element is shortened or the volatilization hole is made small, the temperature around the above-mentioned drug evaporation portion can be maintained at 70° C. or lower.

In addition, the heat of the heating element 16 is not lost to anything other than the rising hot air flow, and the cover body 17 and the heat receiving plate 2
2, most of the heat can be used to heat the liquid absorbent wick, so if a heating element with a thermal stabilization function such as a PTC heating element is used, the minimum amount of heat generated is required and there is no wasted power. Consumption disappears.

In the above embodiment, since the heat receiving plate 22 is located inside the volatilization hole 15 and at least above the heating element 16, the heat radiated from the heating element 16 rises and is once transferred to the heat receiving plate 22. It hits, and then rises further and the upper ventilation hole 21 and upper opening 2
4 to the outside through the volatilization holes 15, much of the preheat radiated from the heating element 16 is absorbed by the heat receiving plate 22, the heat receiving plate 22 becomes hot, and the surroundings of the heat receiving plate 22, for example, the upper surface, are also radiated. It becomes warm due to the heat, creating a heat retention effect, and a thermal upward airflow naturally occurs through the inside of the device main body 1 near the ventilation hole and toward the volatilization hole 15.

Furthermore, even if the medicine comes into contact with the heat receiving plate 22, the medicine will not adhere to it because the heat receiving plate 22 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 upper wall and the heating element is long, the heat-receiving plate 22 with good thermal conductivity is installed at a higher height, so that the chemical does not adhere to the inside of the device body and the chemical can be volatilized through the volatilization holes 15. I can do it.

Further, since the heat receiving plate 22 is disposed in the volatilization hole 15 and is lower than the upper surface of the upper wall 14, even if a cross wind blows, the cross wind does not directly hit the heat receiving plate, preventing cooling. Even when the heat-receiving plate 22 is exposed to heat, it is difficult to cool down due to the high temperature, and the above-mentioned chemical adhesion phenomenon associated with cooling by cross winds is less likely to occur.Furthermore, at least double thermal upward currents are generated from the ventilation holes in the center and around the heat-receiving plate 22. Since there is a double thermal upward current from the volatilization hole to the outside air, even if crosswinds or atmospheric disturbances occur, the effect on chemical evaporation is significantly suppressed.

Further, since the cover body 17 is interposed between the support base 8 and the upper wall 14, when a downward force is applied to the upper wall 14 by stepping on it with a foot, the force is transmitted through the cover body 19. It can be supported by the support stand 8, and the upper wall 14 can be prevented from deforming.

Next, another embodiment will be described.

As shown in FIG. 4, the cover body 17 is integrally provided over the upper wall 14 and the lower wall 5, and an annular air passage 35 is formed between the heat generating element 16 and the cover body 17 and the peripheral wall. An annular air passage 36 may be formed therebetween to generate an air flow indicated by arrow a and a thermal rising air flow indicated by arrow b.

As shown in FIGS. 5 and 6, the mounting plate 18 is pressed and held on the support base 8 by the cover body 17, the vertical ventilation hole 33 is opened to the volatilization hole 15, and the vertical ventilation hole 33 is opened to the volatilization hole 15. Two heat receiving plates 37 may be provided.

As shown in FIG. 7, the circumferential wall 13 of the upper container 3 may have a larger diameter than the circumferential wall 4 of the lower container 2, and a lower vent hole 12 may be formed between the two.

As shown in Figs. 8, 9 and 10, the cover body 17 is made of a material having excellent heat insulating properties such as an organic foam, and has a shape having vertical grooves 38 on the inside and outside surfaces. The cover body 17 is fitted and attached so as to be in contact with the heating element 16 and the peripheral wall 13. The vertical grooves 38 form vertical gaps 25,
In this case, the heat receiving plate 22 is attached to the upper wall 14.

In FIGS. 8 and 10, the peripheral wall 4 of the lower container 2
A support bracket 40 is eccentrically formed integrally with the support bracket 40, and a plug support body 41 having a plug 29 is attached to the support bracket 40 so as to be able to swing vertically.In this way, the plug support body 41 is placed in a horizontal position. This allows it to be used by being plugged into an outlet on a wall, and if the plug support 41 is in a vertical position, it can be used by being plugged into a floor-standing outlet, and when it is plugged into an outlet on a wall, the wall surface and the device body 1 are connected. A vertical space c is formed in between, and an upward flow of clean air is generated in this vertical space c to prevent the evaporated drug from adhering to the wall surface, as well as to prevent the device body 1 from tilting from a horizontal position. Therefore, it becomes difficult for the plug 29 to come out from the outlet, and it is possible to prevent the main body 1 from falling out of the outlet due to insufficient insertion of the plug 29 or the like.

As shown in FIG. 11a, b, c, the device main body 1
A cover body 17 is provided over the lower wall 5 and the upper wall 14 to form an inner air passage 50 and an outer air passage 51, and the inner air passage 50 is communicated with the lower opening 10 and the volatilization hole 15, so that the outer air Passage 51 and lower ventilation hole 12
As shown in FIG. 11a, an upper ventilation hole 52 communicating with the outer air passage 51 is formed in the upper wall 14, or a heat receiving plate 2 is formed in the cover body 17 as shown in FIG. 11b.
2 and a communicating hole 53, or
As shown in FIG. c, an upper ventilation hole 52 and a communication hole 53 may be formed to communicate the outer air passage 51 with the inner air passage 50 to the outside.

In addition, the cover body 17 may be made separate from the upper and lower containers 2, 3, etc., and may be fixed to the upper and lower containers, the heating element, the main body of the device, etc. by gluing, welding, etc., or being screwed in, etc.
It may be installed by being fixed by fitting or the like.

The material of the cover body 17 is one that can withstand heat during use, such as alumina, glass, ceramics such as earthenware, polymer resins such as phenolic resin, nylon resin, PPS resin (polyphenylene sulfite resin), and polypropylene resin. That's fine.

More preferably, materials commonly used as heat insulating materials are used, such as porous materials, fibrous materials, low thermal conductive materials, such as silicon rubber, fluorine rubber, and mixtures thereof, glass fibers, aramid fibers, cellulose resins, and polyesters. Examples include organic fixed resins such as fibers, polymer resins mixed with inorganic powder, and foams thereof.

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.

Further, the shapes of the device main body 1 and the bottle 27 are not limited to those in the embodiment, and may be any shape.

The fitting between the device main body 1 and the bottle 27 is not limited to a screw-in type, but may be arbitrary, such as fitting a bottle storage body in which the bottle 27 is installed into the device main body.

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, crylonfuorte, flamethrin, phenothrin, prarethrin, and perimethrin, sumithion, diazinon,
These include giraffe-based insecticides such as DDVP and Marathon.

Further, in order to suppress the thermal influence of the heating element 16 on the apparatus main body 1, the position of the upper opening of the cover body 17 is preferably approximately the same as or higher than the upper surface of the heating element, and specifically, the upper wall of the upper container 3 14 From inside 1
mm or less is preferable. This is because heat conduction is suppressed, and there is no particular problem in partially touching them. Further, the cylindrical body 19 of the cover body 17 has first and second parts extending above and below.
reticular to the extent that it does not obstruct the upward flow of the air passages,
It can also have a heat insulating effect even if it is shaped like a wedge.

Alternatively, a power cord may be connected to the main body 1 of the apparatus to form a corded type.

[Effect of idea]

Since the cover body 17 can prevent the heat of the heating element 16 from being directly transmitted to the device main body 1, the temperature of the device main body 1 can be lowered, and even if the user touches it during the evaporation of the drug, there will be no risk of burns.

Since air flows through the first air passage and the second air passage, the transmission of heat from the heating element 16 to the cover body 17 can be reduced by the heat insulating effect of the air flowing through the second air passage. Since the heat transferred to the device main body 1 can be reduced by the heat insulating effect of the air flowing through the first air passage, the temperature of the device main body 1 can be further lowered, and furthermore, the temperature of the device main body 1 can be lowered. The liquid-absorbing core 2 is
Since the drug evaporated from 8 can be smoothly evaporated from the volatilization hole 15 and the drug will not be trapped inside the device main body 1, not only will the drug not adhere to the device main body 1, but the second air passage will also flow. The volatilization hole 1 is arranged so that the air wraps around the air flow containing the drug.
5, the chemical can be prevented from adhering around the volatilization holes 15.

[Brief explanation of the drawing]

The drawings show a first embodiment of the present invention; FIG. 1 is a longitudinal sectional view of the first embodiment, FIG. 2 is a plan view of the lower container, FIG. 3 is a perspective view of the cover body, and FIG. 5 and 6 are vertical sectional views and perspective views of the third embodiment, FIG. 7 is a partial sectional view of the fourth embodiment, and FIGS. 8 and 9 are longitudinal sectional views of the second embodiment. A vertical cross-sectional view of the fifth embodiment,
FIG. 10 is a perspective view of the cover body, FIG. 11 is a perspective view, and FIGS. 11a, b, and c are schematic explanatory views showing modified examples of the air passage. 1 is the device main body, 15 is the volatilization hole, 16 is the heating element,
17 is the cover body.

Claims (1)

[Claims for Utility Model Registration] A heating element 16 is provided in the device body 1, a volatilization hole 15 is formed in the upper wall of the device body 1 facing the heating element 16, and the liquid absorbing core 28 of the bottle 27 is heating element 16
In a heating evaporation device that evaporates a drug by heating, a cylindrical cover body 17 that covers the periphery of the heating element 16 is disposed inside the device body 1, and a cylindrical cover body 17 that covers the circumference of the heating element 16 is provided between the cover body 17 and the peripheral wall of the device body 1. A first air passage is formed between the heating element 16 and the cover body 17, and a second air passage is formed between the heating element 16 and the cover body 17, and the first air passage is opened to the outside from the bottom and top of the device main body 1, A heating evaporation device characterized in that the second air passage is opened to the outside from a lower part of the device main body 1 and communicated with the volatilization hole 15.