JP2000325424A - Sauna bath and automatic hot water supplying device in sauna bath - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable comfortable deep breathing of a person with a disease in his nose or throat, by separating gas from liquid when heated air mixed with fine water drops flows upward inside an inner cylindrical body, and by blowing in a sauna room the purified air consisting of heated air mixed with ultra-fine air drops containing a lot of negative ions with comparatively small in diameter. SOLUTION: After hot water in a hot water tank 16 is sucked up by a suction pump 164, it reaches a circular hot water jetting part to be supplied to nozzles 141, and is jetted approximately directly below at a degree of, for example, 25. On the other hand, a fan 15 introduces air at an air inlet port 151, flows the air to a gas-liquid contact part 12 from a tangent direction according to a blowing guide, then the air contacts the jetted hot water and flows downward whirling in a space between an outer cylinder 121 and an inner cylinder 131. Then, the air mixed with fine water drops flows upward in the inner cylinder 131. Comparatively heavy positive-ion-charged water drops with large diameter collide against a spiral plate 132 and fall down in the hot water tank 16, and the air mixed with ultra-fine water drops containing a lot of negative ions with comparatively small diameter is blown from the inner cylinder 131 to a sauna room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sauna bath utilizing the Leonard effect or the Simpson effect and an automatic hot water supply device in the sauna bath. The present invention relates to a sauna bath that can be used for physical therapy with negative ions that are effective for sedation of autonomic nerves, while allowing various organs of the body to work normally, in addition to removing dust, smell, or bacteria. is there. The present invention relates to an automatic hot water supply device for automatically supplying water to a hot water tank in a sauna bath.

[0002]

2. Description of the Related Art A sauna room is composed of a wooden room and chairs. Sauna stone is baked in a wood fire or electric heat, and steam is generated by applying water to the heated stone. I have. The sauna room becomes a dry sauna or a steam sauna by adjusting the internal temperature and humidity. The dry sauna has an indoor temperature of 100
The sauna bath is performed for 5 to 15 minutes at a temperature of C to 110 C and a humidity of 10% or less. The steam sauna lowers the temperature to 40 ° C to 45 ° C and reduces the humidity to about 100%. These saunas are selected according to human preference.

A sauna bath utilizing the Leonard effect or the Simpson effect is disclosed, for example, in Japanese Patent Application Laid-Open No. 7-12422.
No. 3 discloses the principle, effects, and the like in detail.
The sauna bath utilizing the Leonard effect or the Simpson effect not only removes dust, odor, bacteria, and the like, but also has a good effect on the human body.

FIG. 11 is a conceptual diagram for explaining a conventional sauna bath utilizing the Leonard effect or the Simpson effect. In FIG. 11, a sauna room 111 includes a snowboard 1111 and a bench 1112 on which a person sits.
And a stove 1113 for adjusting the temperature of the sauna room, an outside air intake 1114, and an exhaust port 1115.

The negative ion generator removes relatively heavy hot water droplets from the gas-liquid contact portion 112 for generating negative ions and the negative ions attached to the hot water miniaturized by the gas-liquid contact portion 112. A gas-liquid separation unit 113, a blower 115 for sending air to the gas-liquid contact unit 112, a hot water tank 116
And a pump 117 for pumping hot water from the hot water tank 116 and a supply tank 119 for adjusting the temperature of the hot water tank 116.

The cylindrical gas-liquid contact portion 112 has a plurality of nozzles 11 for ejecting hot water pumped from a hot water tank 116 toward a wall surface by a pump 117 at a central portion.
4, a spiral guide 118, and a hot water tank 116 provided below. The hot water tank 116 supplies hot hot water from a replenishing tank 119 to maintain the hot water at a predetermined temperature. The supply tank 119 is provided with the water supply port 11.
After supplying water from 93, the heater 11 provided
After heating at 91 to bring the water to a predetermined temperature, the hot water pump 1
192 pumped by hot water supply inlet 1194
From the hot water tank 116.

[0007] The gas-liquid separator 113 is cylindrical.
A gas-liquid contact portion 112 is provided in the tangential direction. The above-mentioned sauna bath includes a pump 11 from a hot water tank 116.
The hot water pumped by 7 is jetted from a plurality of nozzles 114. The hot water injected from the nozzle 114 collides with the side wall of the gas-liquid contact portion 112, and the particles are miniaturized, and at the same time, positive ions and negative ions are generated. Further, at the end of the gas-liquid contact portion 112, a blow port 1151 for discharging air from the blower 115 is provided.

[0008] The air discharged from the blower 115 is introduced into the gas-liquid contact portion 112 from the blower port 1151, and comes into contact with the micronized hot water particles ejected from the nozzle 114. Rotate the surroundings to make sufficient gas-liquid contact. Dust, odor, bacteria and the like contained in the air are washed away by the hot water sprayed from the nozzle 114 into the hot water tank 116 while rotating.

The moist and hot air containing the remaining negative ions rises while rotating the gas-liquid separator 113. When the hot air containing a lot of moisture rises along the cylinder inside the gas-liquid separation unit 113, the hot water having a relatively large particle diameter falls together with the positive ions due to its weight, and the hot water having a small particle diameter is heated. At the same time, the warm air containing negative ions is discharged from the outlet 1132 of the sauna room 111 via the supply pipe 1131.

[0010]

In a conventional dry sauna, since the temperature in the sauna room is high and low in humidity, the water inside the nose evaporates and becomes hot, and some people feel bad. Covering your nose with a wet towel to prevent this could result in burns. The sauna shown in FIG. 11 has solved such a problem. That is, since the sauna is humid air having negative ions attached to the water of the fine particles, the above problem does not occur.

However, the above-mentioned sauna uses hot water
4, the gas-liquid contact portion 1
The diameter of the twelve cylindrical bodies increases. In addition, the conventional gas-liquid contact portion 112 and the gas-liquid separation portion 113 provided on the tangent have a large area in view of their arrangement, so that the sauna cannot be used for a small number of people or at home. Therefore, the conventional sauna is intended for a relatively large number of saunas.

Since the sauna contains a lot of dust, odor, bacteria, etc. while the hot water in the hot water tank is circulating, fresh hot water must be frequently replaced. However, in the conventional sauna described above, if the time for replacing the hot water in the hot water tank is delayed, dust, odor, bacteria, etc. are scattered, and there is a problem in water supply and drainage.

In order to solve the above-mentioned problems, the present invention provides a method of injecting hot water annularly from a substantially vertical direction like a waterfall,
An object of the present invention is to provide a sauna bath in which gas-liquid contact can be sufficiently performed and gas-liquid separation can be performed well by a cyclone in which a thin inner cylinder and an outer cylinder are arranged concentrically.

The present invention, whether small or large,
It is an object of the present invention to provide a sauna bath in which the number of simultaneous users is changed only by changing the air volume, hot water volume, the number of nozzles, and the like. SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic hot water supply apparatus in a sauna bath that can always discharge clean hot air without erroneously supplying hot water to a hot water tank.

[0015]

Means for Solving the Problems (First Invention) A sauna bath according to the present invention generates hot clean air containing negative ions and sends it to a sauna room by minimizing hot water and bringing it into contact with air. When injecting hot water substantially directly below from a plurality of nozzles arranged annularly on the upper part of a cylindrical body and an inner cylindrical body concentrically arranged with the cylindrical body, the cylindrical body of the cylindrical body Contacting air jetted tangentially to the jet water and the jetted hot water, and causing the jetted hot water and air to collide with a collision member provided almost directly below while rotating the cylindrical body, thereby making the hot water finer. Thereby, a fine water droplet mixed with positive ions and a heated fine water droplet mixed air composed of air ions negatively charged around the water droplet are generated, and the warmed fine water droplet mixed air is generated in the inner cylindrical body. As it rises inside, gas and liquid are separated Specific particle size smaller negative ions composed of many including ultra-fine water droplets mixture warmed air clean hot air, characterized in that it is released into the sauna room.

(Second Invention) A sauna bath according to the present invention is characterized in that clean water containing negative ions is generated and sent to a sauna room by making hot water finer and contacting it with air. When injecting hot water substantially immediately below a plurality of nozzles arranged annularly on the upper part of the inner cylindrical body concentrically arranged with the cylindrical body, tangentially to the cylinder of the cylindrical body By contacting the sent air with the jetted hot water and causing the jetted hot water and the air to collide with a spiral-shaped collision member provided almost directly below while rotating within the cylindrical body, the hot water is refined, so that A heated fine water droplet mixed air composed of fine water droplets charged with ions and negatively charged air ions around the water droplet is generated, and provided below by the rotating heated fine water droplet mixed air. The surface of the hot water tank The gas-liquid is separated when the fine water droplet mixed air including the heated fine water droplet mixed air jumping out from the surface of the vortex rises inside the inner cylinder body, and a large amount of negative ions having a relatively small particle size is increased. The mixed air containing ultra-fine water droplets is discharged into the sauna room.

(Third invention) The sauna bath of the present invention generates clean hot air containing negative ions and sends it to the sauna room by minimizing hot water and bringing it into contact with air. A water tank, a cylindrical body provided on the hot water tank, and a gas-liquid contact portion that is arranged concentrically with the cylindrical body and has a length that does not reach the water surface of the hot water tank. An inner cylindrical body to be configured, and a ring-shaped hot water injection unit that is detachably attached to the cylindrical body and is attached to the inner cylindrical body, and includes a plurality of nozzles and a water supply passage communicating with these nozzles. A pump for pumping hot water from the hot water tank to supply hot water to the annular hot water jetting unit; and a tangential direction of the tubular body for rotating the hot water injected from the nozzle in the tubular body so as to make gas-liquid contact. Blowing means to send air to In the gas-liquid contact portion, warm water and air are caused to collide with a collision member, and heated fine water droplet mixed air comprising fine water droplets charged to positive ions and air ions negatively charged around the water droplets. The gas-liquid contact portion that generates the gas, the separated gas and liquid in the heated fine water droplet mixed air generated in the gas-liquid contact portion, and the heated super-liquid containing a large amount of relatively small particle size negative ions And a gas-liquid separation unit composed of an inner cylinder for discharging mixed air of fine water droplets.

(Fourth invention) A spiral collision member is attached to the outer periphery of the inner cylinder in the sauna bath of the present invention.

(Fifth invention) The sauna bath according to the present invention is characterized in that a spiral plate having a hole at the center is attached to the inner periphery of the inner cylinder body.

(Sixth invention) The annular hot water injection section in the sauna bath according to the present invention is characterized in that at least the inner cylinder and the inner cylinder can be separated from the tubular body, and the inside can be cleaned.

(Seventh Invention) The hot water tank in the sauna bath of the present invention is provided with a heater and is connected to a hot water source.

(Eighth Invention) The hot water tank in the sauna bath according to the present invention is connected to a hot spring source and overflows a surplus hot spring.

(Ninth Invention) The hot water tank in the sauna bath according to the present invention has an upper limit hot water level detecting means for providing an appropriate hot water surface, and a lower limit of pushing down by rotating hot water and air. It is characterized in that a lower limit hot water level detecting means for detecting the hot water level is provided.

(Tenth Invention) The sauna bath according to the present invention is characterized in that the blowing air from the blowing means is 0.5 m / sec to 50 m / s.
ec, air volume 3m ³ / min, pressure 0.2k near nozzle
g / cm ² to 3.5 kg / cm ² , a mist of 1 μm or less is floated in the air discharge portion within an injection angle of 25 ° from the nozzle, and negative ions are 1.25 / m ³ in 1 m ^3.
× 10 ⁹ or more.

(Eleventh invention) The negative ion generator for a sauna bath according to the present invention is characterized in that the hot water in the hot water tank is discharged to a predetermined amount or less and / or after a predetermined time has passed since the hot water supply, and the hot water in the hot water tank is drained. It is started after water or hot water is supplied.

(Twelfth Invention) The material constituting the gas-liquid contact portion and the gas-liquid separation portion in the sauna bath of the present invention is characterized in that it is made of a member that does not generate static electricity.

(Thirteenth Invention) A sauna bath according to the present invention is characterized in that two or more negative ion generators are provided.

(14th Invention) The negative ion generator in a sauna bath according to the present invention is provided outside the sauna room, and the air intake port and the hot air discharge port are connected to the sauna room by piping. And

(Fifteenth Invention) The negative ion generator in a sauna bath according to the present invention is characterized in that it is installed in a sauna room.

(Sixteenth Invention) The temperature of the sauna room in the sauna bath of the present invention is 35 ° C. to 50 ° C., preferably 40 ° C. to 45 ° C., and the humidity is 70% or more, preferably 90% or more. Characterized by being held in

(Seventeenth Invention) An automatic hot water supply device for a sauna bath according to the present invention is a hot water tank capable of supplying water from a tap, and an annular hot water jetted through a plurality of nozzles from which hot water is pumped from the hot water tank. The jetting unit, the hot water jetted from the nozzle is brought into contact with air in the cylindrical body, and a heated fine water droplet composed of positively charged fine water droplets and negatively charged air ions around the fine water droplets is mixed. A gas-liquid contact section that generates air, a gas-liquid separation section that separates heated ultra-fine water drop mixed air containing a large amount of negative ions having a relatively small particle diameter in the heated fine water drop mixed air generated at the gas-liquid contact section In a sauna bath composed of a separation unit,
Detecting means for detecting the presence or absence of hot water in the hot water tank;
Detecting that there is no hot water in the hot water tank, opening the water tap and supplying water into the hot water tank, detecting the upper limit hot water level of the hot water tank and closing the solenoid valve to the water tap, and the solenoid valve Heating means in the hot water tank that starts upon detecting that the water tank is closed, temperature detecting means for detecting the set temperature of the hot water tank, and a switch mechanism for starting the negative ion generator according to a detection signal of the temperature detecting means. And an automatic control mechanism having the following.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION (First Invention) In a sauna bath according to the first invention, hot water is sprayed substantially directly below a plurality of annularly arranged nozzles at an upper portion of a cylindrical body. Further, the air is sent from the tangential direction to the cylindrical body, comes into contact with the jetted hot water, and falls together with the hot water while rotating in the cylindrical body. Since the collision member is provided below the nozzle, the mixture of the warm water and the air collides with the collision member to make the hot water finer to, for example, 1 μm to 0.5 μm or less. Warmed fine water droplet mixed air composed of fine water droplets charged with ions and negatively charged air ions around the water droplets is obtained. Hereinafter, in this specification, "fine water droplet mixed air"
Is defined as being composed of fine water droplets charged to positive ions and air ions negatively charged around the water droplets.

The speed at which the hot water injected from the nozzle collides with the collision member is, for example, 0.5 m / sec to 50 m / sec. The finely divided warm water has small particles of dust, odor, bacteria, etc. attached to the warm water and washed away with the warm water. When the remaining heated fine water droplet mixed air rises inside the inner cylinder, it is separated into warm ultrafine water droplet mixed air containing a large amount of negative ions having a relatively small particle diameter, and then separated outside. Will be released. Hereinafter, in the present specification, “ultra-fine water-droplet mixed air” means that air ions that are negatively charged are separated around water droplets that have been charged to positive ions, and many negative ions having a relatively small particle size are generated. Defined as including.

That is, the mixed air containing ultra-fine water droplets containing a large amount of negative ions having a relatively small particle size is discharged to the outside, and fine water droplets charged to positive ions having a relatively large particle size form the inner cylinder. By adhering to the side wall when passing, gas-liquid is separated. The particle size of water droplets in the air mixture of fine water droplets is about 1 μm or less, and the particle size of water droplets in the air mixture of ultrafine water droplets is about 0.5 μm or less. The number of negative ions at that time is about 1.25 × 10 ⁹ / m
^{Was 3} .

The first invention not only removes dust, smells, bacteria, etc., but also generates clean hot air containing a large amount of negative ions and discharges it to the sauna room, as in the vicinity of a waterfall. It has a positive effect on mental action, including activating the body of a person in a sauna room. The gas-liquid contact part and the gas-liquid separation part are housed in a concentric cylindrical body, and hot water is sprayed by a plurality of nozzles arranged annularly on the upper part of the cylindrical body. The sauna bath can be achieved simply by arbitrarily changing the capacity of the blower, the pump, the number of nozzles, and the like. The clean hot ultrafine water-droplet mixed air containing a large amount of negative ions released into the sauna room contains fine warm water, so that it is not sticky despite its high humidity.

(Second Invention) In the second invention, a plurality of nozzles arranged in a ring at the upper part of the tubular body spray hot water substantially immediately below. Further, the air is sent tangentially to the cylindrical body and contacts the jet hot water,
Together with the hot water, it falls down while rotating in the cylindrical body. Further, the jet hot water and air collide with a spiral collision member provided in the cylindrical body,
Fine water droplet mixed air is generated while rotating at high speed.

Thereafter, the mixed air of fine water droplets rotating at a high speed is pushed downward while forming a vortex on the surface of the hot water tank provided below. From the surface of the swirling hot water, when the hot air containing the micronized hot water and the fine water droplet mixed air ascend the inner cylindrical body of the cylindrical body,
Positive ions fall together with the relatively heavy hot water droplets, and the air mixture of relatively light hot water droplets and ultrafine water droplets containing many negative ions is discharged into the sauna room.

(Third invention) A third invention is a sauna bath for generating ultra-fine water-drop mixed air containing a large amount of negative ions when hot water is refined to separate gas-liquid of the fine water-drop mixed air. A hot water tank that can be formed, a tubular body provided on the hot water tank, and a length attached to the tubular body and not reaching the hot water surface of the hot water tank, and concentric with the tubular body. And an inner cylindrical body that constitutes a gas-liquid contact portion that is arranged so as to form a gas-liquid contact portion.

An annular hot water jetting section for jetting hot water pumped from the hot water tank by a pump is detachably attached to the cylindrical body. In addition, the annular hot water jet unit is provided with a plurality of nozzles connected by an annular hot water channel. The blower sends air from a tangential direction of the tubular body in order to make gas-liquid contact while rotating the hot water injected from the nozzle in the tubular body. At the gas-liquid contact portion, the jetted hot water collides with the collision member attached to the inner cylinder together with the force of the air, and becomes heated fine water droplet mixed air.

The heated air mixture of fine water droplets is composed of fine water droplets charged to positive ions and air ions negatively charged around the fine water droplets. Dust, odor, and bacteria sucked by the blowing means are flowed downward together with hot water at the gas-liquid contact portion. The warm air mixture containing fine water droplets is discharged into the sauna room as ultra-fine water droplet mixed air containing a large amount of negative ions having a relatively small particle size when the air is lifted up the inner cylinder. Separation takes place.

(Fourth Invention) In the fourth invention, a spiral collision member is attached to the outer periphery of the inner cylinder. The spiral collision member makes contact between the air and the micronized hot water, and makes the rotational movement in the gas-liquid contact portion even faster. Therefore, the hot water containing air collides with the spiral collision member while performing high-speed rotation at the gas-liquid contact portion, and at the same time the hot water collides with each other. Therefore, the warm water containing air becomes fine water droplet mixed air composed of fine water droplets that are finely divided and charged to positive ions and air ions that are negatively charged around the fine water droplets.

(Fifth invention) In the fifth invention, the gas containing relatively small hot water after dust, odor, bacteria and the like have been washed out together with the hot water into the hot water tank is supplied to the spiral provided on the inner periphery of the inner cylinder. Hit the board. Then, the relatively small hot water droplets fall into the hot water tank, and further, the ultrafine water droplet mixed air composed of the hot water droplets having a small particle diameter is discharged upward from a hole formed in the center of the spiral plate. .

Also, above the inner cylinder, if necessary,
A water blocking plate is provided which is annular and protrudes obliquely downward. In this water stop plate, gas containing hot water droplets rising while rotating along the side surface of the inner cylinder collides with this part, and hot water droplets of relatively large particle size and charged with positive ions fall. hand,
Warm ultrafine water-droplet mixed air containing a lot of relatively small negative ions having a small particle size is discharged into the sauna room.

(Sixth Invention) The annular hot water injection section in the sixth invention is detachably fixed to the cylindrical body and the inner cylindrical body by fixing means. For example, by simply removing the fixing means such as a screw, the tubular body and the annular hot water jet unit attached to the inner tubular body can be separated. Therefore,
The inside of the cylindrical body can be cleaned with a brush or the like. In addition, since the hot water injection unit can be separated from the inner cylinder and the upper lid can be removed, the nozzle, the inner cylinder, and the like can be easily cleaned.

(Seventh Invention) In the seventh invention, an auxiliary heater can be provided in the hot water tank. Further, the hot water tank can be connected to a hot water source. Hot water sources include, for example, instantaneous water heaters, hot water storage tanks using midnight electric power (gas), bathtub hot water, and hot springs. According to the seventh invention, if the existing hot water source is used as it is, an inexpensive sauna bath is obtained.

(Eighth Invention) An eighth invention relates to a case where a hot spring is used as a hot water source. In the case of a hot spring, leave the hot water in the hot water bath. That is, the hot water tank overflows the surplus hot spring. The hot water in the hot water tank is always allowed to overflow, so that clean hot air containing a large amount of negative ions due to fresh hot water can be discharged to the sauna room.

(Ninth Invention) According to the ninth invention, when a hot spring is used, if the amount of hot water is constant, the upper limit hot water level detecting means of the hot water tank becomes unnecessary. However, the hot water source used in the hot water tank is
Since there are various types, an upper limit hot water level detecting means for limiting the hot water supply is provided. The upper limit hot water level detecting means may be either a mechanical detecting means such as a float or an electric detecting means comprising a semiconductor element or the like. In order to detect the lower limit of pushing down by the jet hot water and the air in which the surface of the hot water tank is rotating, a lower limit hot water level detecting means is required. The minimum temperature of the hot water tank varies depending on the capacity of the blowing means.

(Tenth Invention) According to a tenth invention, as the minimum conditions for generating negative ions, the blowing air from the blowing means is set to 0.5 m / sec to 50 m / sec, the air volume is set to 3 m ³ / min, 0.2 kg of pressure near the nozzle
/ Cm ² to 3.5 kg / cm ² and the injection angle from the nozzle within 25 degrees. In the vicinity of the air discharge section in such a sauna bath, a mist of 1 μm or less was suspended, and the number of negative ions was 1.25 × 10 ⁹ or more in 1 m ³ .

(Eleventh Invention) The negative ion generator according to the eleventh invention is characterized in that the hot water in the hot water tank is drained out of the hot water tank after a predetermined amount of hot water in the hot water tank has reached a certain amount or less and / or after a predetermined time has elapsed since the water supply.
It is activated after new water or hot water is supplied. However, if there is a person using the sauna room, the hot water in the hot water tank should be supplied without draining.

(Twelfth Invention) According to a twelfth invention, the cylindrical body, the inner cylindrical body, the collision member, the spiral plate and the like are made of a member that does not generate static electricity, or a member that does not generate static electricity is coated on its surface. Is done. According to a twelfth aspect, negative ions generated by the waterfall effect are not canceled by positive ions generated by static electricity. As a member which does not generate static electricity, for example, a vinyl chloride resin, acrylonitrile, butadiene, styrene resin (ABS resin), aluminum, copper, an alloy thereof, or a metal member which does not rust are used in whole or in part. can do.

(Thirteenth Invention) According to a thirteenth invention, two or more negative ion generators are provided in one sauna bath. That is, by providing a large number of negative ion generators in one sauna bath, hot air containing a large amount of negative ions having a desired capacity can be discharged into the sauna room.

(14th Invention) In the 14th invention, the negative ion generator is installed outside the sauna room. Then, the negative ion generator and the sauna room communicate with the air intake port and the hot air discharge port by piping. For example, when a bathroom is also used as a sauna room, a negative ion generator is installed in a laundry, a toilet, or outside a house.

(Fifteenth Invention) In a fifteenth invention, a negative ion generator is installed inside a sauna room. The control of the negative ion generator can be performed from inside and outside of the sauna room.

(Sixteenth Invention) The temperature of the moist hot air discharged into the sauna bath of the sixteenth invention is 35 ° C. to 50 ° C., preferably 40 ° C. to 45 ° C.
The humidity at that time is 70%, preferably 90% or more. The sauna bath using the negative ion generator of the present invention is characterized by giving a dry feeling to the skin in spite of high humidity. However, since the humidity was relatively high, the temperature was set to the above temperature in order to prevent burns.

(Seventeenth Invention) In the sauna bath according to the seventeenth invention, hot air containing a large amount of negative ions is discharged from the negative ion generator. The negative ion generator is a hot water tank to which water can be supplied from a tap, an annular hot water jetting section in which hot water pumped from the hot water tank is jetted through a plurality of nozzles, and hot water jetted from the nozzles in the cylindrical body. It is composed of a gas-liquid contact section for contacting with air, and a gas-liquid separation section for separating ultra-fine water drop mixed air containing a large amount of negative ions from the heated fine water drop mixed air generated in the gas-liquid contact section.

The detecting means provided in the hot water tank detects the presence or absence of hot water. When it is detected that there is no hot water in the hot water tank, the solenoid valve is opened and water is automatically supplied from the tap to the hot water tank. The detecting means, when detecting the upper limit hot water level of the hot water tank, closes an electromagnetic valve to stop supplying water to the hot water tank. The heating means in the hot water tank is activated upon detecting that the solenoid valve is closed. The temperature detecting means provided in the hot water tank detects a preset temperature at which the temperature of the hot water in the hot water tank is set in advance. The negative ion generator activates the switch mechanism according to the detection signal of the temperature detecting means to start operation. In addition, the automatic hot water supply device in the sauna bath needs to prevent the hot water in the hot water tank from being drained when a person is in the sauna room.

[0057]

FIG. 1 is a front view for explaining a sauna bath according to an embodiment of the present invention. FIG. 2 is an enlarged view of the hot water injection unit in FIG. 1 and is a view from FIG. 3II-II.
FIG. 3 is a top view of the hot water injection unit of FIG. FIG. 4 is a side view as viewed from IV-IV in FIG. FIG. 5 shows VV of FIG.
It is the top view seen from. FIG. 6 is a top view as seen from VI-VI in FIG.

In FIGS. 1 to 6, the sauna bath is
When the housing 11 is brought into contact with hot water and air, dust, odor,
A gas-liquid contact portion 12 for removing bacteria and the like, a gas-liquid separation portion 13 for separating hot water and a gas containing negative ions, an annular hot water jetting portion 14 for jetting hot water (see FIG. 2), and , A blower 15 for sending air to the gas-liquid contact section 12, and a hot water tank 16 for supplying hot water for removing dust, odor, bacteria, etc.
And a power supply system for a sauna bath (not shown) or a control device for controlling hot water management.

The gas-liquid contact section 12 includes an outer cylinder 121 connected to the hot water tank 16, an inner cylinder 131 which is arranged concentrically with the outer cylinder 121 and forms the gas-liquid separation section 13, It comprises a collision plate 122 spirally attached to the outer periphery of the inner cylinder 131. The gas-liquid separator 13 includes a spiral plate 132 having an opening 133 at the center provided below the inner cylinder 131 and provided around the inside of the inner cylinder 131.
And a water stop plate 134 provided so as to protrude obliquely downward on the inner periphery above the upper side. When the water stop plate 134 is provided with a portion that fits into the inner cylinder 131, removal becomes easy when cleaning.

The outer cylinder 121, the inner cylinder 131, the collision plate 1
22, the spiral plate 132 and the water blocking plate 134 are made of a member that does not generate static electricity, or are coated with a member that does not generate static electricity. As the member that does not generate static electricity, for example, a vinyl chloride resin, acrylonitrile, butadiene, styrene resin (ABS resin), aluminum, copper, an alloy thereof, or a metal member that does not rust is used in whole or in part. can do.

2 and 3, a nozzle 1 having an injection port 142 is provided above the outer cylinder 121 and the inner cylinder 131 which is arranged concentrically with the outer cylinder 121.
41 is, for example, eight annular mounting plates 14
3 is attached. In the center of the annular mounting plate 143, an annular hot water supply hole 14 for sending hot water to each nozzle 141 is provided.
4 are provided. On the upper part of the annular mounting plate 143, an annular lid member 145 configured to connect a hot water supply pipe 148 for supplying hot water to one place is attached by a plurality of first fixing means 146.

The annular mounting plate 143 is connected to the outer cylinder 12.
It is attached by one and a plurality of second fixing means 142 '. Further, the annular mounting plate 143 is mounted on the inner cylinder 131 by third fixing means (not shown) as necessary. The first fixing means 146 and the second fixing means 142 'can be screwed for easy attachment and detachment, and the third fixing means can be non-removable or detachable.

In such a structure, since the annular mounting plate 143 to which the nozzle 141 is mounted, the inner cylinder 131, and the like are easily removed, it is easy to clean dust, odor, bacteria, and the like adhering thereto. become. Nozzle 14
The speed of the injection hot water injected from 1 is, for example, 0.5 m
/ Sec to 50 m / sec. Also, nozzle 1
The pressure injected from 41 is 0.3 k
g / cm ² to 5.5 kg / cm ² .

The blower 15 is blown below the nozzle 141 in the gas-liquid contact portion 12 in order to, for example, draw in room air and remove dust, odor, bacteria and the like in the air. The blower 15 includes an air intake 151 and a motor 152.
, A blade (not shown), a blowing port 153, and a blowing guide 154 (see FIG. 3). A blow guide 154 is provided in the tangential direction of the outer cylinder 121 in order for the wind of the blower 15 to efficiently contact hot water jetted from the nozzle 141 in the gas-liquid contact section 12. The wind of the blower 15 comes in contact with the hot water jetted from the nozzle 141 and drops the hot water while rotating around the inner cylinder 131.

As the blower 15, 40 mm / aq
When a hot-water tank (with a 40 mm column to push down hot water) is used, the amount of pushing down the surface of the hot water tank 16 while rotating the gas-liquid contact portion 12 is about 40 mm. The hot water tank 16 has an upper limit hot water level meter 161 for preventing hot water from overflowing from the hot water tank 16 at the time of water supply, and a lower limit hot water level meter 162 determined by pushing down a hot water level by rotation of gas-liquid at the gas-liquid contact portion 12. A hot water pipe 163 that guides hot water to a pump 164 that supplies hot water to the hot water jetting unit 14, and a drain port 165. The bottom of the hot water tank 16 forms an inclined bottom 169 (see FIG. 7),
Is the lowest position.

The control equipment storage unit 21 shown in FIG. 6 stores power supplies or control circuits such as the blower 15, the pump 164, and the exhaust hot water pump 167, or equipment for controlling the hot water level management of the hot water tank 16. Have been. For example,
The control circuit includes a lamp 343 (see FIG. 7) for detecting a hot water level by an upper limit hot water level meter 161 or a lower limit hot water level meter 162 composed of a float, an infrared detector, a semiconductor detector and the like to notify the necessity of water supply. Is displayed on the display unit.

When the hot water level in the hot water tank 16 falls below a certain level, the control circuit turns on or blinks the lamp, emits a buzzer sound, etc.
Stop the operation of. In addition, the control circuit displays a signal prompting replacement of new hot water on the display unit when a certain usage time or a time including non-use has been exceeded, in order to prevent circulation with old hot water. be able to.

Next, a sauna bath will be described with reference to FIGS. The hot water in the hot water tank 16 is supplied by a pump 16
After being pumped up by the pump 4, the water passes through the water supply pipe 148 and reaches the annular hot water jetting unit 14. The hot water that has entered the hot water jetting section 14 is provided with eight nozzles 14 through an annular hot water supply hole 144.
1 is supplied. Each nozzle 141 injects hot water substantially directly below at an angle of, for example, 25 degrees. For example, the diameter of the injection port 142 of one nozzle 141 is 2.8 mm, the injection pressure is 0.3 kg / cm ² , and the injection amount of hot water is 2.5
Liter / min. That is, the hot water injection amount is
When eight nozzles 141 are provided, 20 liters of warm water is injected per minute.

On the other hand, the blower 15 sends air to the air inlet 1.
51, and is sent from the tangential direction to the gas-liquid contact portion 12 according to the air guide 154 (see FIG. 3). The air blown in from the tangential direction comes into contact with the hot water jetted from each nozzle 141 and proceeds downward while rotating in the space formed by the outer cylinder 121 and the inner cylinder 131. The blowing guide 154 and the ejection angle of the nozzle 141 are associated with each other. That is, the more appropriate the spray angle, the more the contact between the air from the blower 15 and the spray hot water can be maximized.

The air and the injection hot water collide with the spiral collision plate 122 attached around the inner cylinder 131, and the rotational force is further increased. The collision between the air and the jetted hot water and / or the collision between the air and the jet hot water makes the hot water fine, and at the same time, a fine hot water droplet charged to positive ions and a negative charge around the fine hot water droplet. A heated air mixture of fine water droplets composed of air ions is generated. The mixed air of fine water droplets having the increased rotational force pushes down the hot water surface of the hot water tank 16 while swirling.

The height at which the hot water surface is depressed depends on the blower 1
The value is close to the wind power of 5. For example, when the blowing amount of the blower 15 is set to 40 mm / aq, the height of pushing down the hot water surface is about 40 mm. Since the mixed air of fine water droplets having the increased rotational force comes into contact with the hot water surface of the hot water tank 16 by a large energy of rotation, the mixed air of fine water droplets is generated at the same time as the air and the hot water come into contact with each other.

Then, the air mixed with these fine water droplets rises in the inner cylinder 131 arranged at the center. However, the hot water droplet charged to the relatively heavy positive ions having the large particle diameter collides with the spiral plate 132 having the opening 133 attached around the inner cylinder 131 and falls into the hot water tank 16. The air mixed with fine water droplets, which is relatively light and contains many negative ions having a small particle diameter, is separated when passing through the opening 133 of the spiral plate 132 and ascending while rotating.

Further, on the uppermost part of the inner cylinder 131,
Since 34 is attached so as to protrude downward, fine water droplets charged with relatively heavy positive ions that rise along the circumference of the inner cylinder 131 while rotating fall into the hot water tank 16. Then, the ultrafine water droplet mixed air containing a large amount of negative ions having a relatively small particle diameter is sent out from the inner cylinder 131 to the sauna room.

FIG. 7 is a conceptual diagram for explaining an automatic hot water supply apparatus according to an embodiment of the present invention. In FIG. 7, the tap 31 is normally open and connected to the hot water tank 16 via a solenoid valve 33 by a hose 32 having high pressure resistance and high resistance to hot water. The solenoid valve 33 is opened and closed at an arbitrary set time by the automatic water supply / drain controller 34. The automatic water supply / drain controller 34 includes a switch 341, a timer 342 that can set a time for replacing hot water in the hot water tank 16, and at least one display lamp 3.
43.

The drainage pump 35 is, for example, a warm-water resistant type, and is disposed in the hot water tank 16.
Is activated when the set time is reached, and is stopped when there is no more hot water at the lowest point of the inclined bottom 169 of the hot water tank 16. For example, the drainage pump 35 can monitor its torque by the automatic water supply / drainage controller 34, and can stop the startup when there is no hot water and the torque decreases. For example, sauna bath
2 can be set to 12 hours, or 24 hours.

The automatic water supply / drainage device having the above-mentioned configuration is
When 41 is inserted, the electromagnetic valve 33 is activated, and water is supplied from the water tap 31 to the hot water tank 16 through the hose 32. When the hot water level of the hot water tank 16 is detected by the upper limit hot water level meter 161, the automatic water supply / drain controller 34 closes the solenoid valve 33 and stops the supply of tap water. The automatic water supply / drainage controller 34 starts measurement from the time when the water supply ends and the sauna bath operates. Automatic plumbing controller 34
Detects the preset time to terminate the operation of the sauna bath and at the same time, activates the drain pump 35.

The drain water from the drain pump 35 is supplied to a drain pipe 36.
In addition to draining water directly to the drainage channel, a solenoid valve can be provided at the drain port, and this solenoid valve can be automatically operated.
As described above, when the automatic water supply and drainage is performed, the water supply to the hot water tank 16 and the drainage at predetermined time intervals are not required, so that it is not troublesome, and hot air containing a large amount of clean negative ions is discharged into the sauna room. be able to. Therefore, the sauna bath provided with the automatic water supply / drainage controller 34 does not require a filtering device such as a germicidal lamp or a hollow fiber membrane. When there is a person taking a sauna bath in the sauna room, it goes without saying that the drain pump 35 is not operated.

FIG. 8 is a schematic diagram for explaining an example of a negative ion generator and a sauna room according to an embodiment of the present invention.
In FIG. 8, a sauna room 81 includes a chair 82, a supply port 83 for hot air containing negative ions, a discharge port 84 for air,
It comprises a temperature sensor 85 and a humidity sensor 86. The hot water tank 16 has a heater 87 and a water level meter 89.
, A water supply valve 88, and a drain valve 90.

The gas-liquid contact section 12, the gas-liquid separation section 13,
The blower 15 and the pump 164 are shown in FIGS.
It is the same as manga and is drawn as a manga. Sauna room 8
1 indicates that the temperature 85 and the humidity 86 are detected, and the heater 87 is controlled by the detected values to control the temperature of the hot water tank 16.
Of water reaches a predetermined temperature. The temperature of the water in the hot water tank 16 is set to be about 5 ° C. higher than the temperature of the sauna room 81.

FIG. 9 is a schematic view for explaining a method of heating a hot water tank according to another embodiment of the present invention. In FIG.
Hot water is supplied to the hot water tank 16 from a hot water storage tank (not shown) by opening and closing a valve 88 ′. Around the hot water tank 16, for example, a copper pipe 92 is installed in a spiral shape. The heated water is supplied to the copper pipe 9
By circulating in the water 2, the water in the hot water tank 16 is heated. The supply of water to the hot water tank 16 is performed by a valve 88. In the present embodiment, for example, an instantaneous water heater, a hot water storage tank using midnight electric power (gas), a bath water, or the like can be effectively used.

FIG. 10 is a schematic diagram for explaining a heating method using hot springs for hot water in a hot water tank according to another embodiment of the present invention. In FIG. 10, hot water is supplied to the hot water tank 16 by opening and closing a valve 88 '. The other end of the hot water tank 16 has a drain port 93 for draining the overflowing hot spring.
Is provided. A heater 87 is provided in the hot water tank 16 as needed, so that the hot spring can be heated to a desired temperature. If a heater 87 and a copper pipe for circulating hot water are used, the sauna bath requires 20 to 30 minutes to prepare. Further, if the capacity of the heater 87 and the like is increased, the preparation time is shortened. In addition, the sauna bath requires consideration such as providing a ventilation hole to prevent oxygen deficiency inside.

The sauna bath of the present invention is effective not only for removing dust, odor, bacteria and the like, but also for making each organ of the body work normally and for calming the autonomic nerves. Therefore, the negative ions generated from the sauna bath of the present invention dilate blood vessels, make the blood alkaline, and stabilize blood pressure and blood sedimentation in a normal state. Negative ions generated from the sauna bath of the present invention normalize serum (Ca, K), blood sugar level, blood coagulation ability, leukocytes, etc. in blood.

Negative ions generated from the sauna bath of the present invention stabilize functions or recover from fatigue in order to improve lung and heart functions. Furthermore, the negative ions generated from the sauna bath of the present invention have the effect of strengthening the bones, or promoting the diuretic action and eliminating constipation. Negative ions generated from the sauna bath of the present invention can be applied to stabilization of autonomic nerves in addition to the above action.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments. And
The present invention is capable of various design changes without departing from the scope of the claims. Although the components, materials, and their mounting structures in the present embodiment are not described in detail, well-known or known components or means can be employed.

Although the motor, power supply, and control circuit in this embodiment are not described in detail, those conventionally used can be used, and an abnormality alarm,
A hot water running lamp or the like can be added. The shape of the casing and the size of the outer cylinder and the inner cylinder in the present embodiment, when the generation of negative ions and gas-liquid separation are possible,
It goes without saying that it can be slightly deformed.

[0086]

According to the present invention, there is provided a negative ion generator applicable to a large to small sauna bath by changing the number of nozzles, the capacity of a blower and a pump, and the diameters of an outer cylinder and an inner cylinder. Can be easily obtained.

According to the present invention, the injection of hot water from the annularly arranged nozzle is hit while rotating it against the collision member provided substantially immediately below, so that the rotational force is increased at the gas-liquid contact portion or the rotation on the surface of the hot water tank is caused. By forming a vortex or the like, many negative ions can be generated.

According to the present invention, the annular hot water injection section has a structure in which this portion and the inner cylinder can be easily attached and detached.

According to the present invention, the provision of the automatic water supply / drainage device eliminates the need for water supply / drainage and prevents the wrong time for drainage.

According to the present invention, sweating is promoted even though the temperature of the sauna room is as low as 40 ° C. to 43 ° C. Also, because of the low temperature as described above,
Does not damage the skin, hair, etc. of the person taking a sauna bath.

According to the present invention, since the sauna room has a high humidity and an extremely fine mist, even a person having a disease in the nose or throat can comfortably take a deep breath.

According to the present invention, since the mist is ultra-fine, there is no stickiness on the skin despite the high humidity, and spectacles, watches, ornaments, etc. are worn in the sauna room. , Can read books.

According to the present invention, since dust, smell, bacteria and the like can be removed, the smell of sweat in the sauna bath permeates the sauna room, or bacteria due to scattered sweat grow in the sauna room. There is no such thing.

According to the present invention, since the high humidity mist discharged into the sauna room contains many negative ions,
It has the same effect as forest bathing, and is useful for relaxation, activation of physical functions, etc.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a sauna bath according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a hot water injection unit in FIG. 1, and FIG.
It is the figure seen from II.

FIG. 3 is a top view of the hot water injection unit of FIG. 1;

FIG. 4 is a side view as viewed from IV-IV in FIG. 1;

FIG. 5 is a top view as viewed from VV in FIG. 1;

FIG. 6 is a top view as viewed from VI-VI in FIG. 1;

FIG. 7 is a conceptual diagram illustrating an automatic hot water supply apparatus according to an embodiment of the present invention.

FIG. 8 is a schematic diagram illustrating an example of a negative ion generator and a sauna room in an embodiment of the present invention.

FIG. 9 is a schematic view illustrating a method of heating a hot water tank according to another embodiment of the present invention.

FIG. 10 is a schematic view for explaining a heating method using hot springs in hot water in another embodiment of the present invention.

FIG. 11 is a conceptual diagram illustrating a conventional sauna bath using the Leonard effect or the Simpson effect.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Housing 12 ... Gas-liquid contact part 121 ... Outer cylinder 122 ... Collision plate 13 ... Gas-liquid separation part 131 ... Inner cylinder 132 ... Spiral plate 133 ... Opening 134 ... Water stopping Plate 14 ··· Hot water injection unit 141 ··· Nozzle 142 ··· Injection port 143 ··· Ring mounting plate 144 ··· Ring water supply water hole 145 ··· Ring lid member 148 ··· Hot water pipe 15 ··· Blower 151 ··· Air inlet 152 Motor 153 Blow outlet 154 Blow guide 16 Hot water tank

Claims (17)

[Claims] 1. A sauna bath in which hot water is miniaturized and brought into contact with air to generate clean hot air containing negative ions and send it to a sauna room, wherein the cylindrical body and the cylindrical body are concentric. When injecting hot water substantially directly below from a plurality of nozzles arranged in a ring at the upper part of the arranged inner cylinder, the air sent in a tangential direction to the cylinder of the cylinder and the jetted hot water come into contact with each other. The jetted hot water and air are caused to collide with a collision member provided almost directly below while rotating the cylindrical body, thereby minimizing the hot water, thereby forming fine water droplets charged to positive ions and surrounding the water droplets. A heated fine water droplet mixed air composed of negatively charged air ions is generated, and when the heated fine water droplet mixed air rises inside the inner cylinder, gas-liquid is separated and relatively fine particles are formed. Warm rice with many small diameter negative ions A sauna bath, characterized in that clean hot air composed of mixed air with superfine water droplets is discharged into a sauna room. 2. A sauna bath in which hot water is miniaturized and brought into contact with air to generate clean hot air containing negative ions and send it to a sauna room, wherein the cylindrical body and the cylindrical body are concentric. When injecting hot water substantially directly below from a plurality of nozzles arranged in a ring at the upper part of the arranged inner cylinder, the air sent in a tangential direction to the cylinder of the cylinder and the jetted hot water come into contact with each other. Then, the hot water and the air are caused to collide with a spiral collision member provided almost directly below while rotating the cylindrical body, thereby minimizing the hot water, thereby forming fine water droplets charged to positive ions and the water droplets. Generating warmed fine water droplet mixed air composed of negatively charged air ions around the air, and rotating the heated fine water droplet mixed air,
The surface of the hot water tank provided below is pushed down by a vortex, and gas-liquid is separated when the fine water droplet mixed air including the heated fine water droplet mixed air that jumps out of the surface of the vortex rises inside the inner cylindrical body. A sauna bath, characterized in that heated air-mixed air droplets containing a large amount of negative ions having a relatively small particle size are discharged into the sauna room. 3. A hot water tank capable of supplying and discharging water in a sauna bath which generates clean hot air containing negative ions and sends it to a sauna room by making hot water finer and contacting it with air. A tubular body provided, an inner tubular body which is arranged so as to be concentric with the tubular body and has a length not reaching the water surface of the hot water tank and constitutes a gas-liquid contact portion; A ring-shaped hot water injection unit, which is detachably attached to the body and has a plurality of nozzles and a water supply passage communicating with these nozzles, which is attached to the inner cylinder, and pumps hot water from the hot water tank to form the ring. A pump for supplying hot water to the hot water jetting unit; a blower for sending air in a tangential direction of the cylindrical body to make hot water jetted from the nozzles come into gas-liquid contact while rotating in the cylindrical body; In the liquid contact area Gas-liquid contact that collides hot water and air with a collision member to generate a heated fine water droplet mixed air composed of fine water droplets charged to positive ions and air ions negatively charged around the water droplets And separating the gas and the liquid in the heated fine water droplet mixed air generated in the gas-liquid contact portion, and releasing the heated ultrafine water droplet mixed air containing many negative ions having a relatively small particle diameter. A sauna bath, comprising: a gas-liquid separation unit comprising an inner cylindrical body; and a negative ion generator comprising: 4. The sauna bath according to claim 1, wherein a spiral collision member is attached to an outer periphery of the inner cylindrical body. 5. The sauna bath according to claim 1, wherein a spiral plate having a hole in the center is attached to an inner periphery of the inner cylinder. 6. The sauna bath according to claim 1, wherein the annular hot water injection section can be separated from at least the inner cylindrical body from the cylindrical body, and the inside can be cleaned. 7. The hot water tank has a heater and is connected to a hot water source.
A sauna bath according to claim 6. 8. The hot water tank is connected to a hot spring source to overflow a surplus hot spring.
A sauna bath according to claim 7. 9. An upper limit hot water level detecting means for obtaining an appropriate hot water level, and a lower limit hot water level for detecting a hot water level which is a minimum limit of pushing down by the rotating hot water and air. 9. The sauna bath according to claim 1, further comprising detection means. 10. The blowing air from said blowing means is 0.5 m /
sec to 50 m / sec, air volume 3 m ³ / min, pressure near the nozzle 0.2 kg / cm ² to 3.5 kg / min
A mist having a diameter of 1 μm or less is floated in the air discharge portion within a cm ² and an injection angle of 25 degrees from the nozzle, and the number of negative ions is 1.25 × 10 ⁹ or more in 1 m ^3. The sauna bath according to any one of claims 1 to 9. 11. The negative ion generator according to claim 1, wherein the hot water in the hot water tank is drained from the hot water tank after a predetermined amount of time or less and / or a predetermined time has elapsed from the supply of the hot water, and after the fresh water or hot water is supplied. Is activated.
The sauna bath according to claim 10. 12. The sauna bath according to claim 1, wherein a material forming the gas-liquid contact portion and the gas-liquid separation portion is made of a member that does not generate static electricity. 13. The sauna bath according to claim 1, wherein two or more negative ion generators are provided. 14. The negative ion generator according to claim 1, wherein the negative ion generator is installed outside the sauna room, and the air intake port and the hot air discharge port are connected to the sauna room by piping. 13. The sauna bath according to item 13. 15. The sauna bath according to claim 1, wherein the negative ion generator is installed in a sauna room. 16. The temperature of the sauna room is maintained at 35 ° C. to 50 ° C., preferably 40 ° C. to 45 ° C., and the humidity is maintained at 70% or more, preferably 90% or more. The sauna bath according to any one of claims 1 to 15, wherein: 17. A hot water tank to which water can be supplied from a tap, an annular hot water jetting section for jetting hot water pumped from the hot water tank through a plurality of nozzles, and hot water jetting from the nozzles in the cylindrical body by air. A micro-water droplet charged into positive ions, and a gas-liquid contact portion that generates a heated micro-water droplet mixed air composed of negatively charged air ions around the micro water droplet; A gas-liquid separation unit that separates heated ultrafine waterdrop mixed air containing a large amount of negative ions having a relatively small particle diameter in the generated heated fine waterdrop mixed air, in a sauna bath comprising: Detecting means for detecting the presence or absence of hot water; detecting that there is no hot water in the hot water tank; opening a water tap to supply water into the hot water tank; and detecting and closing an upper limit hot water level of the hot water tank. plug A heating means in the hot water tank that starts by detecting that the solenoid valve is closed; a temperature detecting means for detecting a set temperature of the hot water tank; and a detection signal of the temperature detecting means. An automatic hot-water supply device for a sauna bath, comprising: an automatic control mechanism comprising: a switch mechanism for activating a negative ion generator;