JPH0819606A - Steam-type atomizer - Google Patents

Abstract

PURPOSE:To provide a steam-type atomizer which is small and is manufactured at a low cost, and makes it possible to easily clean especially the interior of a steam generator while ensuring the shortening of the time required for starting atomizing. CONSTITUTION:A heater 17 is attached under the bottom part of a tank 10 having a nozzle 22. A water supply tank 11 having a water outlet hole 32 at the bottom part and a water passage 38, is arranged in the tank 10. An inner cap 12 and a cap 13 are fitted on the tank 10. The water W in the water supply tank 11, enters a first heating chamber 34 through the water outlet hole 32, and is heated therein by the heater 17. The boiled water enters the water passage 38, and becomes drops of hot water. The drops of hot water fall into a second heating chamber 40, and are heated again therein by the heater 17. The generated steam is ejected through the nozzle 22 to the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam type atomizer which absorbs water by utilizing vapor pressure and atomizes it.

[0002]

2. Description of the Related Art As a steam atomizer of this type, for example, one shown in FIG. 13 is known. This sprayer includes a water supply tank 200 and water W in the water supply tank 200.
A first heating chamber 202 for heating the first heating chamber and a second heating chamber 202 for evaporating the boiling water heated by the heater 204 in the first heating chamber 202.
The heating chamber 206, a steam nozzle 208 for ejecting the steam generated in the second heating chamber 206, and a liquid suction nozzle 210 for sucking up and spraying the suction liquid F by the steam discharged from the steam nozzle 208. is there.

Another example of the steam generator provided in the above-mentioned atomizer is shown in FIG. This steam generator is different from the steam generator of the atomizer shown in FIG.
It is provided with a vaporization chamber 222 for heating and vaporizing the water by the heater section 224, and a vaporization pressure take-out section 226 for taking out vaporization as a spray. The atomizer provided with these steam generators has an advantage that atomization is started in a short time after the power is turned on.

[0004]

However, as shown in FIG.
The conventional steam generator of the atomizer as shown in FIG. 1 has a complicated structure and is integrally molded with the main body case of the atomizer, and therefore, for example, the lower portion of the water supply tank 200 or the first heating chamber 20 is provided.
Not only is it impossible to clean the second heating chamber 206 and the second heating chamber 206, but it is also difficult to clean the inside of the water supply tank 200. Even with the steam generator of FIG. 14, it is difficult to clean the bottom of the liquid supply unit 220, the vaporization chamber 222, and the like. Further, in the conventional steam generator, since the structure is generally complicated, the sprayer itself becomes large, and it is necessary to use a mold having a complicated shape in manufacturing the sprayer, resulting in high manufacturing cost.

Therefore, the present invention has been made by paying attention to the above-mentioned problems, and in particular, the inside of the steam generator can be easily cleaned while ensuring the shortening of the spray start time, and the steam type is small and the manufacturing cost is low. It is intended to provide a sprayer.

[0006]

In order to achieve the above-mentioned object, a steam atomizer according to claim 1 of the present invention is a tank having a heater at the bottom, and a water supply water provided in the tank and containing water. A tank, a heating chamber formed between the bottom of the water supply tank and the heater, for heating the water in the water supply tank, a water passage for guiding the water in the water supply tank to the heating chamber, and water boiled in the heating chamber. It is characterized in that a steam generator having a nozzle for ejecting generated steam to the outside is provided.

Further, in the steam type atomizer according to a fifth aspect of the present invention, there is provided a heater having a bottom portion and a tank for containing water, and a heating chamber formed between the bottom portion of the tank and the heater for heating the water in the tank. And a steam generator provided with a water passage for guiding the water in the tank to the heating chamber and a nozzle for ejecting steam generated from the water boiled in the heating chamber to the outside.

[0008]

In the steam atomizer according to the first aspect, the water in the water supply tank enters the heating chamber through the water passage and is heated and boiled by the heater in the heating chamber. Steam generated from boiling water is sprayed to the outside of a steam generator (ie, a sprayer) through a nozzle. Further, in spite of the simple structure in which the water supply tank is provided in the tank, the time until the start of spraying is shortened as in the conventional sprayer.

By disposing the water supply tank detachably in the tank (claim 2), the water supply tank can be easily taken out, and the inside of the water supply tank as well as the inside of the tank can be cleaned more easily. . The heating chamber is composed of a first heating chamber formed between the bottom of the water supply tank and the heater, and a second heating chamber formed between the water supply tank and the first heating chamber. A second water passage for guiding the boiling water heated in the chamber to the second heating chamber is provided (Claim 3).
According to the description), water is boiled more efficiently and steam generation is improved.

By providing a lid for sealing the water supply tank and a pressure adjusting passage for guiding the boiling water in the second heating chamber into the water supply tank (claim 4), one of the boiling water in the second heating chamber is provided. The part returns to the inside of the water supply tank through the pressure adjusting passage.
In other words, the water supply tank in the closed state becomes a negative pressure state as the water decreases, but a part of the boiling water returns to the water supply tank together with the vapor pressure, so that the water supply tank and the second
The internal pressure of the heating chamber becomes the same, and the water flows smoothly.

Further, in the steam atomizer according to the fifth aspect, the water in the tank enters the heating chamber through the water passage, and the steam generated from the water boiled by being heated by the heater in the heating chamber is
It is sprayed to the outside of the steam generator (that is, the atomizer) through the nozzle. With this atomizer, the same operational effect as the atomizer according to the first aspect can be obtained.

[0012]

EXAMPLES The steam atomizer of the present invention will be described below based on examples. However, since the present invention is characterized by the steam generator of the atomizer, the description will focus on the steam generator. First, FIG. 1 is a sectional view of a main part of a steam generator in a sprayer according to an embodiment (claim 1), and a side view showing a state in which a cap, an inner cap and a heater are removed from the generator shown in FIG. 2, the top view of FIG. 2 is shown in FIG. 3, and the bottom view of FIG. 2 is shown in FIG. The steam generator A includes a tank 10, a water supply tank 11 arranged in the tank 10, and a water supply tank 11
An inner cap (lid) 12 fitted to the tank 10 and a cap (lid) 13 fitted to the tank 10 and the inner cap 12.

The tank 10 has a flange portion 10a at the bottom, and the screw insertion hole 15 (see FIG. 4) is formed in the flange portion 10a.
(Refer to FIG. 4), the screw insertion hole is also formed in the heater 17 corresponding to the screw insertion hole 15. The heater 17 is integrally attached to the bottom of the tank 10 by inserting the screw 19 into the screw insertion hole 15 of the flange portion 10 a and the screw insertion hole of the heater 17 and tightening the screw 19 with the nut 20. Further, the tank 10 has a nozzle 22 projecting obliquely upward from the outer periphery thereof.
Is for ejecting steam. A hook 10b having an L-shaped cross section is provided around the upper portion of the tank 10.
The packing 24 provided at 0b is pressed by the inner cap 12. On the other hand, the packing 26 provided between the lower portion of the tank 10 and the heater 17 is adapted to be pressed by tightening the screws of the tank 10 and the heater 17. With these packings 24 and 26, the tank 1
The airtightness between the inside and the outside of 0 is secured.

The water supply tank 11 has a tank 1 at the bottom thereof.
0 to the tank 1 through packings 28 and 30
0 and the water supply tank 11 are secured in airtightness, and the water supply tank 11 is provided at a position spaced from the inner circumference of the tank 10.
Is supported. The gap formed between the tank 10 and the water supply tank 11 serves as the second heating chamber 40. Water tank 11
Has a water passage port 32 formed at the bottom thereof, and the water passage port 32 faces the heater 17 at a distance, and a gap formed between the bottom portion of the water supply tank 11 including the water passage port 32 and the heater 17 is the first. It becomes the heating chamber 34. In this embodiment, the water passage 32
A short passage from the first heating chamber 34 to the first heating chamber 34 serves as a water passage (first water passage).

As shown in the enlarged view of FIG. 11, the water passage 32 has a shape in which the inside of the water supply tank 11 is wide and the outside is narrow. With such a shape, the first heating chamber 34 is formed.
It is possible to make it difficult for the water boiled by the heater 17 to flow back into the water supply tank 11 from the water passage 32, and to reliably send the water W in the water supply tank 11 to the first heating chamber 34. In addition, as shown in FIG. 12, the water supply tank 11 may have a narrow water inlet 32 ′ and a wide water outlet 32 ′, and the water inlet 32 ′ may be provided with a check valve 36. In this case, the check valve 36 prevents the backflow of the boiled water to the water supply tank 11.

The water supply tank 11 also has a vertically extending second water passage 38 which serves as a passage for guiding the water (droplets) boiled in the first heating chamber 34 to the second heating chamber 40. From the water passage 38 to the gap between the water supply tank 11 and the tank 10 (second
It is dripped into the heating chamber 40) and again heated and boiled by the heater 17 in the second heating chamber 40. The inner cap 12 has an opening 42 at the center thereof, while the safety valve 4 is provided at a corresponding portion of the cap 13 corresponding to the opening 42.
A coil spring 46 to which 4 is attached is arranged. Normally, the opening 42 is urged by a coil spring 46, and the safety valve 4
When the vapor pressure in the space (including the second heating chamber 40) between the tank 10 and the water supply tank 11 becomes abnormally high, the safety valve 44 opens and opens due to the vapor pressure. The vapor pressure can be released from 42 to reduce the pressure.

In the steam generator A thus constructed, the water W in the water supply tank 11 flows from the water passage 32 to the first heating chamber 3.
4, and is heated by the heater 17 in the first heating chamber 34 to become boiling water. The boiling water enters the second water passage 38, drops in the second heating chamber 40, and is heated again by the heater 17. If the vapor pressure in the tank 10 increases in the process,
The steam generated from the boiling water is ejected from the nozzle 22 to the outside. In this embodiment, a small amount of water supplied from the water supply tank 11 is quickly heated and boiled in the first heating chamber 34, the boiling water is further heated and boiled in the second heating chamber 40, and the vapor is ejected. Therefore, the time until the start of spraying is shortened as in the conventional sprayer.

Further, the cap 13 and the inner cap 12 are removed from the tank 10, and the water supply tank 1 in the tank 10 is further removed.
By taking out 1, the main constituent parts can be easily separated, so that the inside of the tank 10 and the water supply tank 11 can be easily cleaned, and the assembly after cleaning is also easy. Moreover, since the structure is simple, the moldability is good and the production efficiency is improved when the component parts are molded using a mold, for example.

FIG. 5 is a sectional view of the essential parts of a steam generator in a sprayer according to another embodiment (claim 5), and FIG. 5 is a side view showing a state in which a cap, an inner cap and a heater are removed from the generator. 6, a top view of FIG. 6 is shown in FIG. 7, and a bottom view of FIG. 6 is shown in FIG. This steam generator B also has a tank 50, a water supply tank 51 arranged in the tank 50, and an inner cap 52 fitted in the tank 50, as in the above.
And a cap 53 fitted to the tank 50 and the inner cap 52.

The tank 50 has a flange portion 50 at the bottom thereof.
a and has a screw insertion hole 5 formed in the flange portion 50a.
5 (see FIG. 8) and the screw 1 in the corresponding screw insertion hole of the heater 17.
The heater 17 is integrally attached to the bottom portion of the tank 50 by passing the screw 9 through and tightening the screw 19 with the nut 20. Further, a packing 64 is provided on a hook 50b having an L-shaped cross section that is provided around the outer periphery of the upper portion of the tank 50, and a packing 66 is provided between the lower portion of the tank 50 and the heater 17. Airtightness is secured between the inside and the outside.

The water supply tank 51 has a water passage 72 at the center of the bottom which is gently inclined toward the center.
Faces the heater 17 with a space therebetween, and a gap formed between the heater 17 and the bottom portion of the water supply tank 51 including the water passage 72 serves as a heating chamber 74. Of course, in this embodiment as well, the water passage 72 has the shape shown in FIG.
A check valve 36 may be used as shown in FIG. In addition, the water supply tank 51 has a water passage 78 that extends in the up-down direction, the lower part communicating with the heating chamber 74 and the upper part communicating with the upper part of the water supply tank 51. Unlike the water passage 38 of the above-mentioned embodiment, this water passage 78 communicates with the inside of the water supply tank 51, and a part of the boiling water heated in the heating chamber 74 becomes a drop of water inside the water supply tank 51. I'm supposed to come back.

The inner cap 52 has an opening 82 at its center, and the end portion 62a of the nozzle 62 is closed so as to close the opening 82.
Is urged by the coil spring 86. Therefore, in this embodiment, the end portion 62a of the nozzle 62 functions as a safety valve, and if the vapor pressure in the tank 50 rises abnormally, the nozzle 6
2 itself moves upward, and the opening 82 is opened.
The nozzle 62 passes through a hole formed in the center of the cap 53 and projects to the outside.

In this steam generator B, the water W in the water supply tank 51 enters the heating chamber 74 through the water passage 72, and the heating chamber 74
The boiling water heated by the heater 17 infiltrates into the water passage 78, and a part thereof drops into the water supply tank 51. Then, the vapor in the tank 50 is transferred to the opening 82 of the inner cap 52.
And, it is ejected to the outside through the nozzle 62. Also in this steam generator B, the cap 53 and the inner cap 52
By removing the water tank 50 and the water supply tank 51 from the tank 50, each component can be easily separated,
Not only the inside of the tank 50 and the water supply tank 51 can be easily cleaned, but also because of the simple shape, the moldability is good and the production efficiency is improved.

FIG. 9 is a sectional view of the essential parts of a steam generator in a sprayer according to another embodiment. This steam generator C also
A tank 90, a water supply tank 91 arranged in the tank 90, an inner cap 92 fitted in the tank 90,
The cap 9 fitted to the tank 90 and the inner cap 92
3 and 3. The heater 17 is integrally attached to the bottom of the tank 90 by inserting the screw 19 into the screw insertion hole formed in the lower flange portion 90a of the tank 90 and the corresponding screw insertion hole of the heater 17 and tightening the screw 19 with the nut 20. To be In addition, a cross section L is provided around the outer periphery of the upper portion of the tank 90.
The packing 104 is provided on the hook portion 90b having a character shape, and the packing 106 is provided between the lower portion of the tank 90 and the heater 17 to ensure airtightness between the inside and the outside of the tank 90. Further, the tank 90 has a nozzle 102 that projects obliquely upward.

A water supply tank 91 arranged in the tank 90
In order to ensure airtightness between the water tank 90 and the tank 90, a packing 120 is provided between the water supply tank 91 and the tank 90 on the outer circumference of the upper portion of the water supply tank 91, and a packing 120 is provided between the water supply tank 91 and the tank 90 on the outer circumference of the lower portion. Each packing 122 is provided. With the water supply tank 91 disposed in the tank 90, the bottom of the water supply tank 91 and the heater 1
Between the first heating chamber 130 and the first heating chamber 130
A second heating chamber 132 that is watertightly partitioned by the packing 124 is formed. Although the tank 90 and the water supply tank 91 are separate from each other in this embodiment, they may be integrally formed, and in that case, the packings 120 and 122 are unnecessary.

The water supply tank 91 has a water tank 110 for containing water W, a second water passage 112 extending in the vertical direction, and a pressure adjusting passage 114 extending in the vertical direction.
A second heating chamber 132 is formed between the water supply tank 91 and the water supply tank 91. The bottom of the water tank 110 has a tapered water inlet 116.
Is formed, and the water W in the water storage tank 110 enters the first heating chamber 130 through the water passage 116. The water passage 112 has a lower portion in the first heating chamber 130 and an upper portion in the second heating chamber 130.
The pressure adjusting passage 114 communicates with the heating chamber 132,
The lower part communicates with the second heating chamber 132 and the upper part communicates with the water storage tank 110. Further, the second heating chamber 132 and the nozzle 102 also communicate with each other.

In this steam generator C, the water supply tank 91 is completely sealed together with the tank 90 by the inner cap 92. The inner cap 92 has an opening 140 at its center, and a safety valve 142 is biased by a coil spring 144 so as to close the opening 140. Therefore, the water tank 9
The space between 1 and the inner cap 92, that is, the water storage tank 110 has a completely airtight structure with the outside, and the safety valve 142 opens only when the vapor pressure in this space rises abnormally.
The pressure is reduced through the opening 140.

In the steam generator C, the water W in the water storage tank 110 of the water supply tank 91 enters the first heating chamber 130 through the water passage 116 and is heated by the heater 17. The boiling water enters the second water passage 112, drops into the second heating chamber 132, and the heater 17 located below the second heating chamber 132.
Is heated again. The steam generated from the boiling water in the process is ejected to the outside through the nozzle 102. Here, since the water storage tank 110 is hermetically closed, as the water W in the water storage tank 110 decreases, the inside of the water storage tank 110 becomes a negative pressure state. Therefore, a part of the boiling water in the second heating chamber 132 passes through the pressure adjusting passage 114 together with the vapor pressure and passes through the water storage tank 1.
Go back to 10. As a result, the internal pressures of the water storage tank 110 and the second heating chamber 132 are kept uniform, so that the water flows smoothly and steam is efficiently generated in the process.

Next, FIG. 10 (a cross-sectional view of an essential part) shows the overall structure of the steam atomizer in which the above-described steam generators A, B and C are incorporated. Here, the steam generator 1 is fixed to the main body case 150 by attaching the collar-shaped portion 1a that is provided around the steam generator 1 to a predetermined portion of the main body case 150 of the sprayer. The lead wire 4 from the heater 3 fixed to the bottom of the tank 2 is connected to a substrate (not shown) equipped with a heater circuit provided at an appropriate position of the main body case 150. A cap 6 is fitted on the tank 2.

The nozzle (steam nozzle) 7 protruding from the tank 2 is adjacent to and opposed to the suction nozzle 156 attached to the end of the tube 154 extending into the suction water cup 152 detachably arranged in the main body case 150. Therefore, the suction liquid H is stored in the suction water cup 152. Both nozzles 7, 156 are positioned within the spray guide 158.

The steam generated in the steam generator 1 as described above is jetted from the steam nozzle 7 by its steam pressure. At this time, since the tip of the suction nozzle 156 has a negative pressure, the suction liquid H in the suction water cup 152 is sucked up through the tube 154, becomes atomized by the vapor pressure from the vapor nozzle 7, and is sprayed from the spray guide 158. To be done.

[0032]

In the steam type atomizer according to the first aspect of the present invention, since the steam generator having the structure in which the water supply tank is arranged in the tank having the heater at the bottom as described above, the water in the water supply tank is Is heated and boiled by the heater in the heating chamber, and the steam from the boiling water is ejected to the outside through the nozzle, so that the steam generation efficiency is good and the time until the start of spraying is shortened as in the conventional sprayer.

Moreover, since the water supply tank is arranged in the tank, the inside of the tank and the inside of the water supply tank can be easily cleaned, and since the structure is simple, the cost of the mold is low and the moldability is good. Production efficiency is improved. Further, since the structure of the steam generator is simple, the atomizer can be simplified and downsized. By disposing the water supply tank detachably in the tank (claim 2),
The inside of the tank and water supply tank can be easily cleaned.

The heating chamber is composed of a first heating chamber and a second heating chamber, and a second water passage connecting the first heating chamber and the second heating chamber is provided (Claim 3). As a result, the water heated in the first heating chamber is also heated in the second heating chamber, so that the water can be boiled more efficiently, the generation of steam is improved, and the time until the start of spraying is further increased. Can be shortened. A lid for sealing the water supply tank and a pressure adjusting passage for guiding the boiling water in the second heating chamber into the water supply tank are provided (Claim 4).
According to the description), part of the boiling water in the second heating chamber returns to the water tank through the pressure adjusting passage so that the internal pressures of the water tank and the second heating chamber become equal, so that the water flows smoothly. However, this makes it possible to boil water more efficiently.

According to a fifth aspect of the present invention, since the water in the tank is boiled in the heating chamber and the steam generated from the boiling water is ejected from the nozzle to the outside, the steam atomizer according to the fifth aspect is provided. As with the atomizer described, the time to start spraying is reduced. Further, since the tank also serves as a water supply tank, the inside of the tank can be easily cleaned, and the structure is simple, so that the mold can be easily manufactured, the moldability is good, and the production efficiency is improved. Moreover, since the structure is simple, a small and simple sprayer can be provided.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a steam generator in a sprayer according to an embodiment.

FIG. 2 is a side view of the generator shown in FIG. 1 with a cap, an inner cap and a heater removed.

FIG. 3 is a top view of what is shown in FIG.

FIG. 4 is a bottom view of what is shown in FIG.

FIG. 5 is a cross-sectional view of essential parts of a steam generator in a sprayer according to another embodiment.

FIG. 6 is a side view of the generator shown in FIG. 5 with a cap, an inner cap and a heater removed.

FIG. 7 is a top view of what is shown in FIG.

FIG. 8 is a bottom view of what is shown in FIG.

FIG. 9 is a cross-sectional view of a main part of a steam generator in a sprayer according to another embodiment.

FIG. 10 is a cross-sectional view of an essential part showing the overall configuration of a vapor sprayer.

FIG. 11 is a partially enlarged cross-sectional view showing the form of a water passage port of a water supply tank.

FIG. 12 is a partially enlarged cross-sectional view showing another form of the water passage port of the water supply tank.

FIG. 13 is a cross-sectional view of a main part of a steam atomizer according to a conventional example.

FIG. 14 is a cross-sectional view of main parts of another steam generator in the steam atomizer according to the conventional example.

[Explanation of symbols]

 A, B, C Steam generator 10, 50, 90 Tank 11, 51, 91 Water supply tank 12, 52, 92 Inner cap 13, 53, 93 Cap 17 Heater 22, 62, 102 Nozzle 34, 130 First heating chamber 38 , 78, 112 Water passage 40, 132 Second heating chamber 74 Heating chamber 114 Pressure adjusting passage W Water

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[Procedure amendment]

[Submission date] August 30, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

[0012]

EXAMPLES The steam atomizer of the present invention will be described below based on examples. However, since the present invention is characterized by the steam generator of the atomizer, the description will focus on the steam generator. First, FIG. 1 is a sectional view of a main part of a steam generator in a sprayer according to an embodiment (claim 1), and a side view showing a state in which a cap, an inner cap and a heater are removed from the generator shown in FIG. 2, the top view of FIG. 2 is shown in FIG. 3, and the bottom view of FIG. 2 is shown in FIG. The steam generator A is attached to the tank 10, a water supply tank 11 arranged in the tank 10, an inner cap (lid) 12 fitted to the tank 10, and the tank 10 and the inner cap 12. And a cap (lid) 13.

Claims (5)

[Claims] 1. A tank having a heater at the bottom, a water supply tank provided in the tank for containing water, and a water tank formed between the bottom of the water supply tank and the heater to heat the water in the water supply tank. A heating chamber, a water passage for guiding the water in the water supply tank to the heating chamber, and a steam generator provided with a nozzle for ejecting the steam generated from the water boiled in the heating chamber to the outside. A steam-type atomizer. 2. The steam atomizer according to claim 1, wherein the water supply tank is provided with a steam generator detachably arranged in the tank. 3. The heating chamber comprises a first heating chamber formed between the bottom of the water supply tank and the heater, and a second heating chamber formed between the water supply tank and the tank. The steam generator according to claim 1 or 2, further comprising a steam generator having a second water passage for guiding the boiling water heated in the first heating chamber to the second heating chamber. Formula sprayer. 4. A lid for sealing the water supply tank, and the second
4. The steam atomizer according to claim 3, further comprising a steam generator provided with a pressure adjusting passage for guiding boiling water in the heating chamber into the water supply tank. 5. A tank having a heater at the bottom and containing water, a heating chamber formed between the bottom of the tank and the heater for heating water in the tank, and water in the tank serving as the heating chamber. A steam-type atomizer comprising a steam generator having a water passage for guiding and a nozzle for ejecting steam generated from water boiled in a heating chamber to the outside.