WO2015005505A1

WO2015005505A1 - Sterilization humidifier

Info

Publication number: WO2015005505A1
Application number: PCT/KR2013/006036
Authority: WO
Inventors: 김칠영
Original assignee: 한국돌기 주식회사
Priority date: 2013-07-08
Filing date: 2013-07-08
Publication date: 2015-01-15

Abstract

The present invention relates to a sterilization humidifier for controlling the air humidity therearound by evaporating or dispersing the water stored in a water tank, comprising: a moisture generation unit provided to be submerged in the water inside the water tank so as to generate moisture by evaporating or dispersing the water; a pair of electrodes which are arranged so as to face each other and provided to be submerged in the water inside the water tank so as to generate an oxidation body by electrolyzing the water when direct current is applied; an electrical conductivity measurement portion for measuring the electrical conductivity of the water; and a salt supply portion for storing a salt solution or a salt powder and supplying a salt component to the water inside the water tank when the value measured at the electrical conductivity measurement portion is sensed as being lower than a predetermined first value. The oxidation body generated by electrolysis is an oxidation body such as ozone (O₃), hydrogen peroxide (H₂O₂), an OH radical and hypochlorous acid (HOCl) and can implement hygienic humidification by eradicating bacteria and the like inside the water tank. In addition, the generation amount of hypochlorous acid having high sterilizing strength is maintained as the necessary amount in the water inside the water tank by measuring the electrical conductivity of the water inside the water tank and supplying sufficient chloride ions to the water inside the water tank by the salt supply portion when the measured electrical conductivity is lower than a predetermined value, and thus sterilized moisture can always be supplied even if the water of the water tank is not replaced for a long time.

Description

Sterilization humidifier

The present invention relates to a sterilizing humidifier, and more particularly, to a sterilizing humidifier which can be manufactured inexpensively while ensuring safety by spraying moisture discharged from the humidifier in a sterilized state.

Humidifiers for supplying moisture to maintain the health of the human body have been widely used when humidity of the room needs to be controlled, such as in seasons or air conditioning.

Recently, as a result of researches that bacteria or pathogens inhabit water in a humidifier and bacteria or pathogens are transferred to moisture or water vapor supplied from the humidifier, the sterilization performance of the humidifier has emerged as a very important problem.

In general, the humidifier has been widely used in the ultrasonic humidifier with a low power consumption and a large amount of spray, but there is a problem that the bacteria can be sprayed as it is in the water in the humidifier to be a source of pathogens.

Accordingly, the heating humidifier, which has recently been used more frequently, is a method of heating water in a humidifier and spouting it with water vapor. Boiling and spraying water maintains the indoor temperature with hygienic and warm water vapor, thereby reducing the respiratory burden. However, there is a problem in operation that the relatively small amount of spray, high power consumption, and unique noise is generated. There is also a potentially fatal problem of a burn due to heat.

On the other hand, a complex humidifier combined with a heating method and an ultrasonic method has been used as their complex form, but can enjoy the advantages of each method, there is a problem that is several times to several tens of times expensive compared to the conventional ultrasonic humidifier with a high manufacturing cost.

On the other hand, a natural humidifier has recently been proposed to naturally vaporize water to maintain humidity of 40% to 60%, which is optimal for indoor health. This has the advantage that the particles are small, the diffusion rate is fast and the fine dust is adsorbed and removed from the filter, but excellent sterilization, but the use cost increases because expensive filters need to be replaced every two to three months.

Therefore, there is an urgent need for a humidifier that can be inexpensively manufactured while being able to reliably prevent bacteria and pathogens from propagating in the water in the humidifier.

In order to solve the problems described above, an object of the present invention is to provide a sterilizing humidifier which can be manufactured inexpensively while ensuring safety by spraying moisture discharged from the humidifier in a sterilized state.

The present invention provides a humidifier for spraying the water by making moisture in the storage tank to achieve the object as described above, the moisture generating unit is installed so as to be submerged in the water in the reservoir to generate moisture by evaporating or scattering the water; A pair of electrodes arranged to face each other and installed to immerse in water in the reservoir, and electrolytically decompose the water to generate an oxidant when a direct current is applied; An electrical conductivity measuring unit measuring electrical conductivity in the water; A salt supply unit for storing a salt solution or salt powder and supplying a salt component to water in the reservoir when the value measured by the electrical conductivity measuring unit is detected to be lower than a first predetermined value; It provides a humidifier, characterized in that configured to include.

When water in the reservoir of the humidifier is stored for a long time, bacteria or fungal viruses inhabit, which can be sterilized by oxidants such as hydrogen peroxide, hypochlorous acid, OH radicals and ozone generated by electrolysis. To do this.

That is, the oxidant produced by the electrolysis generates oxidants such as ozone (O3), hydrogen peroxide (H2O2), OH radicals, and hypochlorous acid (HOCl), and the oxidant can kill bacteria and the like in the reservoir. At this time, hypochlorous acid (HOCl), which has high sterilizing power, is generated by using chlorine ions remaining in water. In addition, electrical conductivity varies depending on the degree of ionization of chlorine ions in water.

Therefore, the present invention measures the electrical conductivity of water in the reservoir of the humidifier, and when the value of the electrical conductivity is lower than the predetermined value, the amount of hypochlorous acid produced by electrolysis is lowered, so that the measured value of the electrical conductivity is When it is lower than the predetermined value, by supplying sufficient chlorine ions to the water in the reservoir by the salt supply, it becomes possible to maintain the amount of hypochlorous acid having high sterilizing power to the water in the reservoir more than necessary.

At this time, the salt supply unit can supply the chlorine ions to the water in the reservoir smoothly in a short time by supplying a saturated salt solution to the water of the reservoir.

The electrical conductivity measuring unit measures electrical conductivity by ions by measuring electrical conductivity at positions spaced apart from each other in the water.

When the salt supply unit detects that the value measured by the electrical conductivity measuring unit is lower than the second value larger than the first value, the salt supply unit stores the salt solution or the salt powder and supplies the salt component into the water in the reservoir. It includes a mode controlled to.

Electrolysis by the electrode can be done during the process of generating the moisture.

The apparatus further includes a quantity sensor for sensing the amount of water contained in the reservoir, and the time for electrolysis at the electrode is determined in proportion to the amount of water sensed by the quantity sensor. Here, the water level sensor may be configured to detect the amount of water contained in the reservoir by the water level sensor installed in the reservoir, or may be configured to detect the amount of water by the weight sensor for measuring the weight of the water on the lower side of the reservoir.

In addition, at least one of platinum, iridium, ruthenium, and alloys thereof may be provided on the opposite surface of the electrode.

At this time, the first value is set to 100 µs / cm or more. This is because when the electrical conductivity of the water in the reservoir is lower than 100 μs / cm, even if the electrode is energized at a high voltage of about 30 to 31 V, current does not flow and electrolysis does not occur smoothly. As a result of the experiment, when applied at a voltage of 30 ~ 31V using a grid electrode of 3cm x 3cm, it was confirmed that when the electrical conductivity is 300μs / cm or more, the current is energized by 500mA or more and the oxidant is actively generated. Therefore, it is preferable that the said 1st value is set to 100 microseconds / cm or more, and the 2nd value mentioned later is set to 300 microseconds / cm or more.

The measured values of the measured current flowing through the electrodes when applied at a voltage of 30 to 31 V using a 3 cm x 3 cm grid electrode while controlling the electrical conductivity using a K ₂ SO ₄ solution are shown in Table 1.

Table 1

Electrical Conductivity (μs / cm)	Current carrying current (mA)
Less than 100	-
100	160
150	240
200	290
250	350
300	510

The electrode may be formed of at least one of a projection electrode having a plurality of projections facing each other or a grid electrode having a plurality of grids facing each other.

The electrolysis by the electrode may be performed continuously, but is preferably performed at a predetermined time interval.

On the other hand, as an important feature of the present invention, an ultrasonic vibrator is additionally installed in the reservoir adjacent to the electrode, thereby maximizing the amount of oxidant generated in the electrode by the ultrasonic vibrator. This feature can be confirmed through the experimental results shown in FIG. That is, when the ultrasonic vibrator is provided adjacent to the electrode, it can be seen that the concentration of the oxidant (vertical axis, ppm) generated for various salt water concentrations (horizontal axis) is much higher. As a result, even if a lower current is applied to the electrode for a short time, more oxidants can be generated, thereby minimizing the consumption of platinum and the like, thereby obtaining an advantageous effect of extending the life of the electrode.

In addition, the humidifying unit may be selectively provided with a heating air supply unit for blowing hot air. As a result, even when the moisture generating unit is formed as an ultrasonic vibrator, the moisture discharged through the humidifying unit may be heated to continuously supply warm moisture.

As described above, in the present invention, the oxidant produced by electrolysis is a bactericidal oxidant such as ozone (O3), hydrogen peroxide (H2O2), OH radicals, hypochlorous acid (HOCl) and eradicates bacteria in the reservoir. Thereby providing a humidifier that implements a hygienic humidifying action.

That is, the present invention is configured to supply sterilized moisture at all times by applying the above configuration to an ultrasonic humidifier, which has been a problem of conventional hygiene, and thus an advantage of supplying inexpensive and hygienic moisture is obtained.

Above all, the present invention measures high electrical conductivity of water in the reservoir and supplies sufficient chlorine ions to the water in the reservoir by the salt supply unit when the measured value of the electrical conductivity is lower than a predetermined value, thereby providing high sterilization power to the water in the reservoir. By maintaining the amount of hypochlorous acid having more than necessary, there is an advantageous effect that can always supply sterilized moisture even if the water of the reservoir is not replaced for a long time.

The term 'spray' described in the present specification and claims is defined as including all forms of heating and evaporating water stored in the reservoir or supplying moisture by ultrasonic method or natural vaporization method.

1 is a view showing the configuration of a sterilizing humidifier according to an embodiment of the present invention

FIG. 2 is a diagram showing the configuration of the electrode of FIG.

3 is a diagram illustrating a configuration of applying a current to an electrode of FIG. 1;

4a and 4b show different types of electrodes that can be mounted to the device of FIG.

Figure 5 is a view showing in sequence the operation of the sterilizing humidifier of the present invention

Figure 6 is a graph showing the results of microbial bacterial count analysis according to the test method for sterilizing power according to the present invention,

FIG. 7 is a comparison graph in which oxidized product amount (ppm) is measured according to brine concentration with and without an ultrasonic vibrator installed in a reservoir. FIG.

100: humidifier 110: casing

120: reservoir 121: water

130: humidifier 140: moisture generating unit

150: electrode 160: salt supply unit

165: saturated solution 170: operation unit

180: electrical conductivity measurement unit 190: control unit

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention. However, in describing the present invention, a detailed description of known functions or configurations will be omitted to clarify the gist of the present invention.

As shown in FIG. 1, the sterilizing humidifier 100 according to an embodiment of the present invention includes a casing 110 and a reservoir 120 for receiving water 121 to make moisture in the casing 110. Humidification unit 130 to receive a portion of the water in the reservoir 120 to make moisture and spray through the spray port 130a, and a moisture generating unit for generating moisture in the shallow water introduced into the humidifying unit 130 ( 140, an electrode 150 installed to be immersed in the water of the reservoir 120, a salt supply unit 160 for selectively supplying salt into the reservoir 120, and an operation unit for displaying an operating state of the humidifier 100 ( 170, an electrical conductivity measuring unit 180 measuring electrical conductivity of water in the reservoir 120, and a controller 190 controlling the inflow of salt from the current and salt supply unit 160 applied to the electrode 150, and the like. It consists of.

The reservoir 120 is installed in the casing 110, may be formed in a detachable form or may be formed in a form not separated from the main body. A water level sensor 125 for measuring the amount of water 121 contained in the reservoir 120 is provided, and the amount of water contained in the reservoir 120 is transmitted to the controller 190.

The humidifying unit 130 introduces a portion of the water of the reservoir 120 through the passage 135 in a limited amount, thereby absorbing moisture from the water 121 ′ introduced by the moisture generating unit 140 such as an ultrasonic wave or a heater. Generated, and the generated moisture is discharged to the outside through the spray hole (130a). When the moisture generating unit 140 is not in the heating form, since the moisture discharged through the spray hole 130a is cold, the hot air 137d is blown by the heating air supply unit 137, thereby, The moisture released through the passage can be kept warm. At this time, the heating air supply unit 137 may be in a form separate from the humidifier 100, it is more effective that the pipe is installed in the main body and blows the heating air is configured to communicate with the humidifier 130.

The moisture generating unit 140 may be an ultrasonic vibrator, a heating plate, or may be a moisture generating module used in a natural vaporization method. That is, the present invention can be applied to the manner of generating moisture in various ways.

As shown in FIG. 2, the electrodes 150 have protrusions 151a and 152a formed on the positive electrode plate 151 and the negative electrode plate 152 facing each other, and thus, the power supply line 155a, The low current supplied through 155b) also induces strong electrolysis. As a result, the water in the reservoir 120 is sterilized by oxidants such as hydrogen peroxide, OH radicals, hypochlorous acid and ozone to sterilize bacteria, fungi and viruses in the water during electrolysis. Accordingly, even if water is contained in the reservoir 120 for a long time, a direct current may be applied to the electrode 150 at a predetermined time interval to maintain the water in the reservoir 120 in a sanitized state.

Meanwhile, the electrode 150 may be applied in a form in which protrusions 151a and 152a are formed. As shown in FIGS. 4A and 4B, a plurality of cathode bars 251a are disposed between the longitudinal slots 251b. The cathode electrode 251 is formed between the positive electrode 252 and a plurality of positive electrode bars 242a formed between the transverse slots 242b. As shown in FIG. 4C, the negative electrode 251 a and the positive electrode bar 252 are formed. May be arranged to be perpendicular to each other, so that a conduction path is formed at a point connecting the opposing points 88 where the cathode rod 251a and the anode rod 252a cross each other, so that the electrolysis may be concentrated.

The electrode may be formed of an electrode formed of a flat surface.

At this time, any one or more of platinum, iridium, ruthenium, and alloys thereof are coated on the opposite surface of the electrode 150, so that the efficiency of electrolysis can be improved to generate more oxidizing fungicides.

On the other hand, the ultrasonic vibrator 158 is preferably installed in the reservoir 120 adjacent to the electrode 150. This is not to generate moisture discharged to the outside air, but to serve as a catalyst for further promoting the generation of oxidants in the electrode 150. In FIG. 1, the ultrasonic vibrator 158 is located at one side of the electrode 150, but may be at any position close to the electrode 150. As the ultrasonic vibrator 158 is installed around the electrode 150, the amount of the oxidant generated in the electrode 150 is maximized.

This feature can be confirmed through the experimental results shown in FIG. That is, when the ultrasonic vibrator 158 is installed adjacent to the electrode 150, the brine concentration of water contained in the reservoir 120 is 0.1%, 0.2%, and 0.3%, which is generated when the ultrasonic vibrator is not installed. It can be seen that the concentration of the oxidant is further generated by the concentration (ppm) corresponding to 1.5 to 2 times. As a result, even if a lower current is applied to the electrode for a short time, more oxidants can be generated, thereby minimizing the consumption of platinum and the like, thereby obtaining an advantageous effect of extending the life of the electrode.

The salt supply unit 160 stores the saturated salt solution 165, and when it is detected that the electrical conductivity of the water 121 in the reservoir 120 is lower than a predetermined value, the valve 168 is opened to saturate. The salt solution 165 is supplied to the water 121 in the reservoir 120. As a result, the amount of chlorine ions is increased in the water 121 in the reservoir 120 to generate more hypochlorous acid having excellent sterilizing power by electrolysis at the electrode 150. Therefore, by maintaining the amount of hypochlorous acid having high sterilizing power in the water 121 in the reservoir 120 more than necessary, the sterilized moisture can always be supplied even if the water 121 of the reservoir 120 is not replaced for a long time. It has a beneficial effect.

The operation unit 170 includes a display 171 for displaying operation state information of the humidifier, an ON / OFF button 172 of the humidifier 100, and a humidification amount control button 173. The display 171 displays whether the current is applied to the electrode 150 and whether the electrolysis is in progress and the operation mode.

The electrical conductivity measuring unit 180 measures the electrical conductivity of the water 121 in the reservoir 120 by measuring the voltage and / or current between the two contacts spaced apart from each other. The electrical conductivity changes in proportion to the amount of ions dissolved in the water 121 in the reservoir 120. Therefore, high electrical conductivity means that a sufficient amount of ions are contained in the water 121, so that more oxidant can be generated during electrolysis to sufficiently sterilize the water 121 in the reservoir 120. do. On the contrary, the low electrical conductivity means that a sufficient amount of ions are not contained in the water 121, so that the amount of oxidant generated during electrolysis is insufficient to sufficiently sterilize the water 121 in the reservoir 120. It means not.

Therefore, the electrical conductivity measuring unit 180 determines whether or not there are enough ions in the water 121 by measuring the electrical conductivity of the water 121 in the reservoir 120.

The controller 190 adjusts the time for applying the current to the electrode 150 according to the amount of water information received from the water level sensor 125. Specifically, when the amount of water 121 in the reservoir 120 is large, the electrolysis time is increased in order to generate an oxidant that is sufficiently bactericidal, and when the amount of water 121 in the reservoir 120 is small. Even if the electrolysis time is reduced, the bacteria in the water 121 can be completely killed.

In addition, the control unit 190 receives the value of the measured electrical conductivity of the water 121 from the electrical conductivity measuring unit 180, if less than the first predetermined value saturation stored in the salt supply unit 160 The salt solution 165 is supplied into the reservoir 120. This maintains a sufficient amount of chlorine ions to sterilize all the water 121 in the reservoir 120.

The controller 190 also detects that the water 121 is in the reservoir 120 for a long time. The water level sensor 125 may detect a state in which the water 121 in the reservoir 120 is not completely emptied, and it is detected by a timer (not shown) that this state is continuing. To this end, even if the timer is in the OFF state of the humidifier 110, it is preferable that the operation of the timer is maintained by the emergency power or the auxiliary battery.

In this state in which the water 121 stays in the reservoir 120 for a long time, it is very likely that bacteria or bacteria propagate in the water 121 in the reservoir 120. In this case, it is necessary to sterilize all the water in the reservoir 120 as soon as possible before or after the moisture is discharged from the humidifier.

Therefore, if it is detected that the water 121 is staying in the reservoir 120 for a long time, even if the user presses the ON button, it is necessary to discharge moisture after sterilizing the water 121 in the reservoir 120. In order to sterilize the water 121 in the reservoir 120 in a shorter time, immediately before releasing moisture, a large amount of saturated salt solution 165 is released from the salt supply unit 160, and more oxidant is released within a predetermined time. By generating the water, the water 121 in the reservoir 120 can be sterilized in a shorter time to be in a sanitary state. Then, the moisture discharged through the spray port 130a by discharging the moisture is discharged in the sterilized state. Through this, since the humidifier 100 according to the present invention always discharges only sterilized hygiene moisture, it is possible to fundamentally prevent infection with pathogens or bacteria according to the use of the humidifier.

The operation principle (S100) of the sterilizing humidifier 100 according to an embodiment of the present invention configured as described above will be described in detail with reference to FIG. 5.

Step 1 : First, the water 121 in the reservoir 120 is placed inside the casing 110 (S110).

Step 2 : Then, the amount of water 121 contained in the reservoir 120 is measured by the water level sensor 125 and the information is transmitted to the controller 190 (S120).

Step 3 : In order to kill bacteria or bacteria in the water 121 contained in the reservoir 120, a direct current is applied to the electrode 150 from the power supply 155 to electrolyze the water 121. As a result, oxidants such as ozone, OH radicals, hypochlorous acid, and hydrogen peroxide are generated to sterilize the water 121 contained in the reservoir 120 (S130).

Step 4 : Meanwhile, even during

steps

2 and 3, the electric conductivity of the water 121 in the reservoir 120 is continuously measured in real time by the electric conductivity measuring unit 180 and measured by the controller 190. The value is transmitted (S140).

Step 5 : At this time, when the electrical conductivity measured from the electrical conductivity measuring unit 180 is lower than the first predetermined value, the saturated salt solution having a 38% concentration from the salt supply unit 160 is opened by opening the valve 168. It is supplied in the reservoir 120 (S150). Accordingly, the electrical conductivity in the reservoir 120 is always maintained to be greater than the first value, so that the amount of oxidant generated by electrolysis can always be maintained to the extent that the bacteria and the like in the reservoir 120 can be sterilized. have.

Here, although there is a variation according to the amount of water contained in the reservoir 120, the electrical conductivity of the water is generally 100μs / cm or more to sterilize the water 121 in the reservoir 120, the first value is 100μs / cm It is determined by the above value.

Step 6 : Steps 2 to 5 are continued from the start point of operation of the humidifier 100 to the end point of operation. At this time, an operating time for performing electrolysis by applying a direct current to the electrode 150 is determined in proportion to the amount of water contained in the reservoir 120 (for example, 10 seconds to 5 minutes). The electrolysis by applying a direct current to the electrode 150 is not performed only once at the start of operation, but bacteria or the like may be propagated in the reservoir 120 as the time elapses. For example, the electrolysis is performed by applying a direct current to the electrode 150 in 10 to 60 minutes (S160).

Through this, even if a humidifier is used for a long time, the sterilization process of the reservoir is periodically performed to sterilize to generate and discharge hygienic moisture, thereby preventing the growth of bacteria and the like in the reservoir to reduce hygienic moisture.

However, in consideration of the amount of water or the prevention period of the water, an operating time and an operating period for performing electrolysis by the electrode 150 may be varied as necessary.

Step 7 : Meanwhile, the humidifier 100 according to the present invention senses that the water 121 stays in the reservoir 120 for a long time by a sensor measuring the weight of the reservoir 120 or the water level. In this case, since it is very likely that the bacteria or bacteria have propagated in the water 121 in the reservoir 120, the saturated salt solution 165 is supplied from the salt supply unit 160 in a large amount so that the electrical conductivity measuring unit 180 Electrical conductivity in the reservoir 120 is adjusted by the controller 190 so that the electrical conductivity measured from the ()) is higher than the second predetermined value. At this time, since the second value is to supply the saturated salt solution 165 so that there is a large amount of chlorine ions in the water 121 in the reservoir 120, the second value is larger than the first value (for example, 600 μs / cm).

Then, a direct current is applied to the electrode 150 to perform electrolysis for a short time of about 20 seconds to 1 minute to generate a large amount of oxidant in a short time to completely sterilize the water 121 in the reservoir 120. Then, the moisture generating unit 140 is operated to discharge the sterilized moisture through the spray port 130a.

As described above, the present invention is sterilized after sterilizing the water 121 in the reservoir 120 even when there is water 121 in the reservoir 120 without operating the humidifier 100 for a long time. Since it is configured to spray, it is possible to fundamentally prevent infection with pathogens or bacteria by the use of a humidifier. Furthermore, although the sterilization principle according to the present invention may be applied in parallel with heating, it does not apply a heating method that requires excessive cost or a natural vaporization method that requires an expensive manufacturing cost, and even a low-cost ultrasonic method does not apply pathogens or bacteria. As it can provide hygienic moisture free from bacteria, it is possible to obtain an advantage that it can be manufactured at low cost.

Sterilization performance according to the action of the humidifier 100 according to the present invention as described above was verified by the following experiment.

First, 1 liter of 0.1% sodium chloride solution is prepared to prepare a pair of electrodes 150 of 3 cm x 3 cm, and a power supply is installed in the pair of electrodes 150.

Then, 0.3 ml of E. coil 25922 (E. coli) at an initial concentration of 10 ⁷ CFU / mL was evenly applied to the palm of the experimenter. Put in the humidifier and sprayed for 10 seconds, 30 seconds, 60 seconds with the palm 10 cm apart from the spray port (130a).

Then, put the sterilized lab gloves on the hands of the experimenter, add 50 mL of PBS solution, knead evenly for 1 minute, elute the bacteria from the hands, and count the bacteria on the collected sample. Glove juice method, www. youtube.com/watch?v=eU6Ekstmwl4).

As a result, as shown in Figure 6, it was confirmed that more than 93% of the bacteria are killed even if exposed to the humidifier for 10 seconds to 30 seconds, 99% is killed even if exposed to the humidifier for 60 seconds.

In the above, the preferred embodiments of the present invention have been described by way of example, but the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

Claims

Humidifier that creates and sprays moisture with water stored in the reservoir,

A moisture generating unit installed to immerse in water in the reservoir to generate moisture by evaporating or scattering the water;

A pair of electrodes arranged to face each other and installed to immerse in water in the reservoir, and electrolytically decompose the water to generate an oxidant when a direct current is applied;

An electrical conductivity measuring unit measuring electrical conductivity in the water;

A salt supply unit for storing a salt solution or salt powder and supplying a salt component to water in the reservoir when the value measured by the electrical conductivity measuring unit is detected to be lower than a first predetermined value;

Humidifier, characterized in that configured to include.
The method of claim 1,

The salt supply unit humidifier, characterized in that for supplying a saturated salt solution to the water of the reservoir.
The method of claim 1,

The electrical conductivity measuring unit humidifier, characterized in that for measuring the electrical conductivity by the ions in the water.
The method of claim 1,

When the salt supply unit detects that the value measured by the electrical conductivity measuring unit is lower than the second value larger than the first value, the salt supply unit stores the salt solution or the salt powder and supplies the salt component into the water in the reservoir. A humidifier comprising a mode controlled to
The method of claim 1,

Humidifier, characterized in that the electrolysis by the electrode is performed during the process of generating the moisture
The method of claim 1,

Further comprising a quantity sensor for detecting the amount of water contained in the reservoir,

A humidifier characterized in that the time of electrolysis at the electrode is determined in proportion to the amount of water detected by the quantity sensor
The method of claim 1,

Humidifier, characterized in that any one or more of platinum, iridium, ruthenium and alloys thereof are provided on the opposite side of the electrode.
The method according to any one of claims 1 to 7,

The first value is a humidifier, characterized in that more than 100μs / cm.
The method according to any one of claims 1 to 7,

The electrode is a method of manufacturing a rigid girder, characterized in that any one or more of a projection electrode formed with a plurality of projections facing each other or a plurality of grid electrodes facing each other.
The method according to any one of claims 1 to 7,

A humidifier, characterized in that the electrolysis by the electrode is performed at a predetermined time interval.
The method according to any one of claims 1 to 7,

And an ultrasonic vibrator installed in the reservoir adjacent to the electrode.
The method according to any one of claims 1 to 7,

The humidifier further comprises a heated air supply unit for blowing hot air.