KR20220097604A - Air-cleaning sterilizer - Google Patents

Abstract

An objective of the present invention is to provide an air purifying and sterilizing device capable of efficiently generating and spraying sanitizing water containing an anti-bacterial component in a predetermined concentration range. According to the present invention, the air purifying and sterilizing device comprises: a water tank installed inside a housing and containing an electrolyte solution; a pump for pumping water in the water tank; an electrode assembly for generating sanitizing water containing an anti-bacterial component by electrolyzing the high-pressure water pressurized by the pump; a nozzle for spraying the sanitizing water; and a control unit controlling the operation of the water tank, pump, and electrode assembly. In the electrode assembly, a plurality of electrode plates and a plurality of electrode mounting bodies are alternately coupled, and at least one of the plurality of electrode plates includes a plurality of protrusions formed on a surface through which the water flows.

Description

Air-cleaning sterilizer {Air-cleaning sterilizer}

The present invention relates to an air purifying sterilizer, and more particularly, to a device for generating and spraying sterilizing water using an electrolysis device.

During the changing seasons or when it is necessary to control the indoor temperature, such as heating and cooling, the humidity in the room is lowered, so a humidifier that supplies moisture is widely used to maintain the health of the human body.

Recently, as the research results reported that bacteria or pathogens inhabit the water in the humidifier and the bacteria or pathogens are transferred together with the moisture or water vapor supplied from the humidifier to transmit diseases, the sterilization performance of the humidifier is emerging as a very important issue.

In general, an ultrasonic humidifier with low power consumption, quiet and large amount of spray has been widely used.

Accordingly, the heating type humidifier, which is being used more frequently in recent years, is a method that heats water in the humidifier and sprays it as steam. Since it boils water and sprays it, it maintains the room temperature with hygienic and warm steam, which has the advantage of reducing the burden on the respiratory system. However, there are operational problems in that the amount of spray is relatively small, the power consumption is high, and a characteristic noise is generated. In addition, there is a problem of safety accidents caused by high-temperature heat in the process of boiling water.

On the other hand, a combined humidifier combining a heating method and an ultrasonic method was used as their complex form, and although each method can enjoy advantages, it has a problem that high manufacturing cost is required.

In addition, the composite humidifier according to the prior art only includes a method of boiling water to be humidified, and has a problem in that even bacteria floating in the air cannot be sterilized or the air cannot be sterilized.

To solve this problem, the sterilization humidifier shown in FIG. 1 was developed.

The sterilization humidifier 100 according to the prior art is a humidifier that creates moisture with water stored in the water storage tank 120 and sprays it, and is installed to be submerged in the water in the water storage tank 120 and evaporates or scatters the water to generate moisture. 140, a pair of electrodes 150 arranged to face each other and installed to be submerged in water in the water storage tank 120, which electrolyzes water to generate an oxidized body when a direct current is applied, and electrical conductivity in water When it is sensed that the electrical conductivity measurement unit 180 for measuring and the value measured by the electrical conductivity measurement unit 180 are lower than the first predetermined value, the salt solution or salt powder is stored and the salt component is stored in the storage tank. It is configured to include a salt supply unit 160 for supplying water in the 120.

The sterilization humidifier according to the prior art can implement a hygienic humidification action by eradicating bacteria in the water storage tank, but also has a problem in that even bacteria floating in the air cannot be sterilized or the air cannot be sterilized.

Republic of Korea Patent Publication No. 10-2013-0114311

An object of the present invention is to provide an air purifier sterilizer capable of efficiently generating and spraying sterilization water containing a sterilization component in a predetermined concentration range.

In order to achieve the above object, an air purifier sterilizer of the present invention includes: a water tank installed inside a housing and containing an electrolyte; a pump for pumping water from the bucket; an electrode assembly that electrolyzes high-pressure water pressurized by the pump to generate sterilizing water containing a sterilizing component; a nozzle for spraying the sterilizing water; and a control unit for controlling the operation of the bucket, the pump, and the electrode assembly, wherein the electrode assembly includes a plurality of electrode plates and a plurality of electrode mounting bodies are alternately coupled, and at least one of the plurality of electrode plates allows water to flow It includes a plurality of projections formed on the surface.

The plurality of protrusions may be formed in one of a cone, a hemispherical shape, and a cylindrical shape.

The plurality of protrusions may be arranged at predetermined intervals inside the fan shape.

The electrode assembly includes a housing having an injection hole formed on one side and an exhaust hole on the other side, a first electrode plate disposed inside the injection hole of the housing, and the first electrode plate attached to the inner side of the rim on one side and a through hole in the center A first electrode mounting body formed, a second electrode plate attached to the other side of the first electrode mounting body and having the plurality of protrusions formed on one side thereof, and the second electrode plate attached to the inside of the rim and inside the rim on one side A second electrode mounting body through which a radial flow path is formed, a third electrode plate attached to the other side of the second electrode mounting body and having a through hole in the center, and the third electrode plate attached to the inside of the rim on one side a third electrode mounting body having a flow path formed around the center of one side thereof; a fourth electrode plate attached to the other side of the third electrode mounting body and having the plurality of protrusions formed on the other side thereof; It may include a fourth electrode mounting body to which an electrode plate is attached and a flow path is formed in the center of the other side, and a fifth electrode plate attached to the inner edge of the fourth electrode mounting body and disposed inside the outlet of the housing.

The electrode assembly may further include a cathode terminal and an anode terminal coupled through the first electrode plate, the second electrode plate, the third electrode plate, the fourth electrode plate, and the fifth electrode plate, respectively.

Each of the first electrode plate, the third electrode plate, and the fifth electrode plate may include a through hole formed in the center thereof.

The housing includes a first housing in which the inlet is formed and a thread is formed on an outer circumferential surface, a second housing in which the outlet is formed and a screw thread is formed on an inner circumferential surface to be coupled to the first housing, the first housing and the second housing It may include a sealing member interposed therebetween to seal the gap therebetween.

It may further include a spray filter disposed in front of the nozzle inclined in the spraying direction of the sterilizing water and made of a fabric material.

Auxiliary bucket disposed in the lower portion of the bucket; a flow sensor for detecting a flow rate of the sterilization water generated in the electrode assembly; a pressure switch for sensing the pressure of the sterilized water; and a safety valve installed downstream of the pressure switch to bypass the sterilization water to the auxiliary water tank when the pressure switch fails.

The sterilization water sprayed to the spray filter is sprayed while wet the spray filter, and the sterilization water that wets the spray filter and flows down may be drained into the auxiliary water tank.

The air purifier sterilizer includes a water level sensor for detecting the water level in the auxiliary water tank; a dust sensor that measures the concentration of fine dust indoors; a temperature sensor that measures the indoor temperature; Humidity sensor for measuring indoor humidity; and a gas sensor for measuring the indoor harmful gas concentration, wherein the control unit receives the sensing signals of the sensors to control the operation of the bucket, the pump, and the electrode assembly.

The control unit maintains the current within a predetermined range by controlling the magnitude of the voltage applied to the electrode assembly according to the electrolyte concentration of the water supplied to the bucket, thereby maintaining the concentration of the sterilizing component of the sterilizing water generated in the electrode assembly within a predetermined range. can

According to the above-described air purifying sterilizer of the present invention, it is possible to efficiently generate and spray the sterilizing water containing the sterilizing component in a predetermined concentration range.

1 is a block diagram showing a sterilization humidifier according to the prior art.
2 is a perspective view showing an air purifier sterilizer according to an embodiment of the present invention.
3 is a block diagram showing the configuration of an air purifier sterilizer according to an embodiment of the present invention.
4 is a block diagram illustrating a configuration for safe operation of an air purifier sterilizer according to an embodiment of the present invention.
5 is a block diagram illustrating a control-related configuration of an air purifier sterilizer according to an embodiment of the present invention.
6 is an exploded perspective view showing the structure of an air purifier sterilizer according to an embodiment of the present invention.
7 is an exploded perspective view showing the structure of an air purifier sterilizer according to an embodiment of the present invention.
8 is a perspective view showing that the UV LED is installed on the housing plate.
9 is an external perspective view showing an electrode assembly according to an embodiment of the present invention.
10 is an exploded perspective view of the electrode assembly of FIG. 9 .
11 is an external perspective view illustrating an electrode assembly according to an embodiment of the present invention viewed from a different direction.
12 is an exploded perspective view of the electrode assembly of FIG. 11 .
13 is a view showing that the second electrode plate is coupled to one side of the second electrode mounting body.
14 is a plan view illustrating a fluid flow along a radial flow path formed on one side of the second electrode mounting body.
15 is a plan view illustrating a fluid flow along a radial flow path formed on the other side of the second electrode mounting body.
16 is a cross-sectional view illustrating a flow path of a fluid through an electrode assembly.
17 is a view showing an example of the operation control method of the air purifier sterilizer of the present invention.
18 is a diagram illustrating control of a voltage applied to an electrode assembly to maintain a concentration of a sterilizing component in a sterilization water within a predetermined range.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, terms such as 'comprising' or 'having' are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, it should be noted that in the accompanying drawings, the same components are denoted by the same reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings.

2 is a perspective view showing an air purifier sterilizer according to an embodiment of the present invention, FIG. 3 is a block diagram showing the configuration of an air purifier sterilizer according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention It is a block diagram showing a configuration for safe operation of an air purifier sterilizer according to an example, and FIG. 5 is a block diagram illustrating a control related configuration of an air purifier sterilizer according to an embodiment of the present invention, FIGS. 6 and 7 are An exploded perspective view showing the structure of an air purifier sterilizer according to an embodiment of the present invention, and FIG. 8 is a perspective view showing a UV LED installed on a housing plate.

2 to 7, the air purifier sterilizer 100 of the present invention is installed inside the housing 101 and includes a water tank 110 containing an electrolyte solution, a pump 120 for pumping water in the water tank, and a pump. Electrode assembly 200 for generating sterilization water containing sterilizing components by electrolyzing high-pressure water pressurized by the 180).

First, referring to FIGS. 6 and 7 , the air purifier and sterilizer 100 includes a housing 101 in which various parts such as a bucket 110 , a pump 120 , and an electrode assembly 200 are mounted, and a housing. It may include a pair of side covers 106 coupled to both sides of the 101 , and a front cover 105 coupled to the front of the housing 101 and the pair of side covers 106 .

The upper surface of the housing 101 may be provided with a display unit or a manipulation unit that indicates the operating state of the air purifier and sterilizer 100 and can operate the operation. The housing 101, the pair of side covers 106, and the front cover 105 may be provided with a grill through which disinfecting water is sprayed or air can enter and exit.

The water tank 110 may be installed at a generally lower portion inside the housing 101 . The bucket 110 is easily detachable from the inside of the housing 101 and has a handle, so that a user can easily replenish water. The bucket 110 may be supplied with tap water or brine in which salt is dissolved in tap water.

In the case of tap water, a hose may be connected from the water supply to the bucket 110 , and a valve may be provided to supply tap water to the bucket 110 whenever necessary. In the case of brine, the producer may provide a certain amount of salt lumps, and the user may periodically put the salt lumps into the bucket 110 one by one. As shown in FIG. 3 , it may be configured so that a salt lump is automatically put into the bucket 110 by providing a salt input device 111 .

As shown in FIG. 6 , an auxiliary bucket 112 may be disposed under the bucket 110 . The auxiliary bucket 112 may be connected to the bucket 110 to receive tap water from the bucket 110 . That is, tap water is supplied to the bucket 110 , and salt is added to the tap water in the auxiliary bucket 112 to accommodate brine. Of course, the air purifier sterilizer 100 of the present invention may be operated using only tap water. In this case, there is no need for the auxiliary water tank 112 or even if there is an auxiliary water tank 112, only tap water without salt in the auxiliary water tank 112. This can be accepted.

As shown in FIGS. 3 and 4 , a pump 120 is connected to the bucket 110 or the auxiliary bucket 112 to pump water at a high pressure and supply it to the electrode assembly 200 . The pump 120 may be a liquid electric pump using 24V DC power. A first valve 115 is connected between the auxiliary bucket 112 and the pump 120 to control the flow rate of water supplied to the pump 120 . The first valve 115 may be a solenoid valve using 12V DC power.

3 and 5, the auxiliary water tank 112 may be provided with a water level sensor 113. The water level sensor 113 may be provided in the auxiliary bucket 112 and/or the bucket 110 . The water level sensor 113 may measure the water level of the auxiliary water tank 112 and display the current water level through the control unit 180 or inform that water replenishment is required.

The electrode assembly 200 electrolyzes the high-pressure water supplied by the pump 120 while flowing it around the plurality of electrode plates. When tap water or brine is electrolyzed, part of the water is decomposed into hydrogen and oxygen and hydroxy radicals (OH-) and hypochlorous acid (HOCl) are generated at the same time, and sterilization water containing them can be generated. Hydroxy radicals (OH-) and hypochlorous acid (HOCl) are oxidizing agents, and can remove harmful substances such as volatile organic compounds (VOCs), hydrogen sulfide and ammonia, and microorganisms such as viruses, bacteria, and fungi.

Since tap water as well as brine contains chlorine components by chlorine disinfection, the electrode assembly 200 can generate sterilizing water containing hypochlorous acid (HOCl) even by electrolyzing tap water. It is preferable that the concentration of hypochlorous acid in the sterilization water is 5 to 12 ppm. If the concentration of hypochlorous acid is less than 5ppm, the sterilization function may be insufficient, and if the concentration of hypochlorous acid exceeds 12ppm, the sterilization water sprayed into the room may have a detrimental effect on people.

The nozzle 170 may spray the sterilizing water generated by the electrode assembly 200 into the air. In front of the nozzle 170 , a blower fan 160 that blows water to spray water and a spray container including an ultrasonic vibrator may be provided. The ultrasonic vibrator can create aerosol-state water droplets in the sterilization water. Since the sterilization water is generated from the electrode assembly 200 at a high pressure, the nozzle 170 may directly spray the sterilization water without the spray bottle and the ultrasonic vibrator.

Meanwhile, the blowing fan 160 sucks air around the air purifier and sterilizer 100 and blows it together with the sterilizing water. An air filter 165 may be installed on the upstream side of the blowing fan 160 . The air filter 165 may be a triple filter composed of three or more filtering materials.

In addition, a plurality of UV LEDs 162 are provided between the air filter 165 and the blowing fan 160 to sterilize the incoming air by irradiating UV rays. As shown in FIGS. 6 to 8 , the plurality of UV LEDs 162 face downward with the air filter 165 in the air flow path of the plate disposed between the air filter 165 and the blowing fan 160 . It may be arranged to irradiate ultraviolet rays.

A spray filter 175 may be provided in front of the nozzle 170 . As shown in FIG. 4 , the spray filter 175 is made of a fabric material and may be disposed to be inclined in the spraying direction of the sterilizing water.

The sterilization water sprayed to the spray filter 175 is sprayed while wet the spray filter, and the sterilization water that wets the spray filter 175 and flows down is drained into the auxiliary water tank 112 and can be recycled. Most of the sterilization water sprayed to the spray filter 175 may be concentrated on the spray filter 175 or may be sprayed through the spray filter 175 . In addition, a part of the sterilization water is guided upward without passing through the spray filter 175 and is sprayed, and the remaining part of the sterilization water flows between the bottom of the spray filter 175 and the support container and is guided upward behind the spray filter 175. can be sprayed.

The sterilization water sprayed toward the spray filter 175 wets the spray filter 175 and flows down to the support container, and the sterilization water flowing down through the hose connected from the support container to the auxiliary water tank 112 drains into the auxiliary water tank 112. and can be recycled.

The controller 180 may control the operation of the bucket 110 , the pump 120 , the electrode assembly 200 , the blowing fan 160 , the nozzle 170 , and the like.

In the electrode assembly 200, a plurality of electrode plates 220, 240, 260, 280 and a plurality of electrode mounting bodies 230, 250, 270, 290 are alternately coupled, and at least one of the plurality of electrode plates 240 and /or 260 may include a plurality of protrusions 245 and 265 formed on a surface through which water flows.

The detailed structure of the electrode assembly 200 will be described later.

3 and 4, the air purifying and sterilizing device 100 includes a flow sensor 130 for detecting the flow rate of the sterilized water generated in the electrode assembly 200, and a pressure switch for detecting the pressure of the sterilized water ( 140), and a safety valve 150 installed downstream of the pressure switch to bypass the sterilized water to the auxiliary water tank 112 when the pressure switch fails.

The flow sensor 130 is installed in the outlet pipe of the electrode assembly 200 to measure the flow rate of the sterilizing water flowing toward the nozzle 170 .

The pressure switch 140 stops the operation of the pump 120 and the electrode assembly 200 when the pressure of the sterilizing water rapidly increases because the nozzle 170 is blocked, thereby securing the durability of the pump and protecting the electrode assembly from overcurrent. .

The safety valve 150 may be installed downstream of the pressure switch 140 , and a bypass flow path may be connected from the safety valve 150 to the auxiliary water tank 112 . The safety valve 150 can protect the pump and the electrode assembly by bypassing the sterilizing water to the auxiliary water tank 112 when the pressure switch 140 fails.

On the other hand, a bypass flow path for bypassing the pumped water to the auxiliary water tank 112 is connected to the pipe between the pump 120 and the electrode assembly 200, and the second valve 125 is installed in the bypass flow path. can When the air purifier 100 is operated, the control unit 180 opens the first valve 115 and operates the pump 120. At this time, the second valve 125 may be opened and closed for 5 seconds. . If there is no water in the auxiliary bucket 112 , air may be introduced into the pump 120 , so that the pump 120 may not be able to pump water properly. In this case, the controller 180 may open the second valve 125 to bypass the air toward the auxiliary bucket 112 , and prevent the air from flowing into the electrode assembly 200 .

As shown in FIG. 5 , the air purifying sterilizer 100 includes a dust sensor 191 , a temperature sensor 192 , a humidity sensor 193 , along with the water level sensor 113 and the pressure switch 140 , A sensor unit 190 such as a gas sensor 194 may be included.

The dust sensor 191 may measure the concentration of fine dust in the room where the air purifier 100 is installed.

The temperature sensor 192 may measure indoor temperature, and the humidity sensor 193 may measure indoor humidity.

The gas sensor 194 may measure the concentration of harmful gases such as volatile organic compounds (VOCs), hydrogen sulfide, and ammonia and the concentration of odor components in the room.

In addition, the sensor unit 190 includes a current sensor 196 for detecting a current value flowing through the electrode assembly 200 and a conductivity sensor 197 for measuring the electrical conductivity of the sterilized water generated as it passes through the electrode assembly 200 . ) may be further included.

The control unit 180 receives the detection signals of the water level sensor 113 and the pressure switch 140, and when the water supply or supplement warning of the water tank 110 or the pressure of the sterilized water rapidly increases, the pump 120 and the electrode assembly 200. control such as stopping the operation of

In addition, the control unit 180 receives the detection signals of the temperature sensor 192, the humidity sensor 193, the gas sensor 194, etc., determines whether the sterilization water injection operation is necessary, and determines whether the pump 120 and the electrode assembly ( 200) can be controlled.

In addition, the controller 180 may receive the detection signals of the current sensor 196 and the conductivity sensor 197 to adjust the concentration of the sterilizing water.

9 is an external perspective view showing an electrode assembly according to an embodiment of the present invention, FIG. 10 is an exploded perspective view of the electrode assembly of FIG. It is an external perspective view showing the 2 It is a plan view showing the fluid flow along the radial flow path formed on one side of the electrode mounting body, Figure 15 is a plan view showing the fluid flow along the radial flow path formed on the other side of the second electrode mounting body, Figure 16 is the electrode assembly It is a cross-sectional view showing the flow path of the fluid through it.

9 to 12 , the electrode assembly 200 includes a plurality of electrode plates 220 , 240 , 260 , 280 , 300 and a plurality of electrode mounting bodies 230 , 250 , 270 inside the housing 210 . , 290) may be alternately combined.

10 and 12, the housing 210 has a first housing 211 having an inlet 213 and a screw thread formed on the outer circumferential surface, and an outlet 214 having a screw thread formed on the inner circumferential surface. It may include a second housing 212 coupled to the first housing. A sealing member 218 for sealing a gap therebetween may be interposed between the first housing 211 and the second housing 212 . The sealing member 218 may be formed of a rubber ring inserted between the outer circumferential surface of the first housing 211 and the inner circumferential surface of the second housing 212 and pressed.

The electrode assembly 200 includes a first electrode plate 220, a first electrode mounting body 230, a second electrode plate 240, a second electrode mounting body 250, and a third from the first housing 211 side. The electrode plate 260 , the third electrode mounting body 270 , the fourth electrode plate 280 , the fourth electrode mounting body 290 , and the fifth electrode plate 300 may be sequentially coupled to each other.

Each of the electrode plates 220 , 240 , 260 , 280 , and 300 may be formed by coating titanium and platinum on a disk-shaped conductive metal.

The housing 210 and each electrode mounting body 230 , 250 , 270 , 290 may be formed of a non-conductive plastic material.

The first electrode plate 220 may be disposed inside the injection hole of the housing. A through hole 222 through which the fluid passes may be formed in the center of the first electrode plate 220 , and a pair of terminal holes 224 may be formed on both sides of the through hole 232 in the radial direction. A pair of terminals to be described later may pass through the pair of terminal holes 224 .

The first electrode mounting body 230 may have a first electrode plate 220 attached to one side thereof on the inside of the rim, and a through hole 232 may be formed in the center thereof. The first electrode mounting body 230 may have a sector-shaped through-holes 236 formed around the center to form a radial spoke structure as a whole. A mounting groove 231 is formed inside the rim on one side of the first electrode mounting body 230 so that the first electrode plate 220 can be inserted therein. On the other side of the first electrode mounting body 230 , a plurality of in/out passages 234 may be concavely formed on the edge portion in a radial direction. Although the mounting groove 231 is formed on one side of the first electrode mounting body 230 , the mounting groove 231 may not be formed on the other side of the first electrode mounting body 230 .

The second electrode plate 240 is attached to the other side of the first electrode mounting body 230, and the plurality of protrusions 245 described above may be formed on one side. A pair of terminal holes 244 may be formed in the second electrode plate 240 at positions corresponding to the pair of terminal holes 224 of the first electrode plate 220 .

The plurality of protrusions 245 may be formed in one of a cone, a hemispherical shape, and a cylindrical shape. When the projection 245 is formed in a cone shape, the electrolysis performance is the best, so the concentration of hypochlorous acid generated may be the highest.

The plurality of protrusions 245 may be arranged such that an outline of a set of protrusions 245 forms a sectoral shape. That is, the plurality of protrusions 245 may be arranged at predetermined intervals inside the fan shape. As shown in FIG. 10 , the plurality of protrusions 245 may include four sets of protrusions 245 arranged in a fan shape. The four sets of protrusions 245 arranged in a fan shape may be disposed in a portion where there is no pair of terminal holes 224 .

The second electrode mounting body 250 may have a second electrode plate 240 attached to one side thereof inside the rim, and a radial flow path 252 may be formed through the rim inside the rim. A mounting groove 251 in which the second electrode plate 240 is seated is formed on one side of the second electrode mounting body 250 , and a third electrode plate 260 is also formed on the other side of the second electrode mounting body 250 . A mounting groove 251 to be seated may be formed.

A plurality of in/out passages 254 in the form of grooves disposed in a radial direction may be formed on the edge portion of one side of the second electrode mounting body 250 . Six of the plurality of entry and exit passages 254 may be arranged at intervals of 60 degrees. The plurality of in/out flow paths 254 communicate with the first circumferential flow path, and six radial flow paths 252 communicate with each other in the circumferential flow path. The radial flow path 252 may communicate with the second circumferential flow path constituting a small concentric circle, and the six flow paths 253 may be formed to communicate again radially inwardly in the second circumferential flow path. The in/out flow path 254, the radial flow path 252, and the flow path 253 are formed to be crossed with each other, so that the fluid flowing through them repeats separation and mixing while changing the flow direction in the radial and circumferential directions. can Thus, the electrolysis performance of the electrode assembly 200 can be improved.

The third electrode plate 260 may be attached to the other side of the second electrode mounting body 250 and a through hole 262 may be formed in the center. The third electrode plate 260 may be seated in the mounting groove 251 formed on the other side of the second electrode mounting body 250 . A pair of terminal holes 264 may be formed on both sides of the through hole 262 of the third electrode plate 260 in the radial direction. The third electrode mounting body 270 has a third electrode plate 260 on one side thereof. ) is attached to the inside of the rim, and the radial flow path 272 may be formed through the inside of the rim. A mounting groove 271 in which the third electrode plate 260 is seated is formed on one side of the third electrode mounting body 270 , and a fourth electrode plate 280 is also formed on the other side of the third electrode mounting body 270 . A mounting groove 271 to be seated may be formed.

A plurality of in-and-out passages 274 in the form of grooves arranged in a radial direction may be formed on the edge portion of one side of the third electrode mounting body 270 . Six of the plurality of entry and exit passages 274 may be arranged at intervals of 60 degrees. The plurality of in/out flow paths 274 communicate with the first circumferential flow path, and six radial flow paths 272 communicate with each other in the circumferential flow path. The radial flow path 272 may communicate with a second circumferential flow path constituting a small concentric circle, and the six flow paths 273 may be formed to communicate again radially inwardly in the second circumferential flow path. The in/out flow path 274, the radial flow path 272, and the flow path 273 are formed to be alternated with each other, so that the fluid flowing through them repeats separation and mixing while changing the flow direction in the radial and circumferential directions. can Thus, the electrolysis performance of the electrode assembly 200 can be improved.

The fourth electrode plate 280 may be attached to the other side of the third electrode mounting body 270 and a plurality of protrusions 265 may be formed on the other side. The fourth electrode plate 280 may be seated in a mounting groove 271 formed on the other side of the third electrode mounting body 270 . A pair of terminal holes 284 are formed on both sides in the radial direction from the center of the fourth electrode plate 280 , and a cathode terminal 286 may be inserted into one of the terminal holes 284 to be mounted. The cathode terminal 286 also penetrates all five electrode plates and may be coupled by a nut.

As shown in FIG. 10 , no protrusions are formed on one side surface on which the fourth electrode plate 280 is attached to the third electrode mounting body 270 , and as shown in FIG. 12 , the fourth electrode plate 280 is A plurality of projections 285 may be formed on the other side surface attached to the fourth electrode mounting body 290 . The shape and arrangement of the plurality of protrusions 285 are the same as those of the plurality of protrusions 245 of the second electrode plate 240 .

The fourth electrode mounting body 290 may have a fourth electrode plate 280 attached to the inner side of the rim on one side, and a flow path 293 may be formed around the center of the other side in the form of a groove. A mounting groove in which the fourth electrode plate 280 is seated is not formed on one side of the fourth electrode mounting body 290 , and the fifth electrode plate 300 is seated on the other side of the fourth electrode mounting body 290 . The mounting groove 291 to be formed may be concave. In addition, the flow path 293 may be formed in a groove shape without penetrating only the other side surface of the fourth electrode mounting body 290 .

The fourth electrode mounting body 290 may have a sector-shaped through-hole 296 formed around the center to form a radial spoke structure as a whole. On one side of the fourth electrode mounting body 290 , a plurality of inlet and out passages 234 may be concavely formed in the radial direction on the edge portion.

12 , a mounting groove 291 in which the fifth electrode plate 300 is seated may be formed inside the edge portion of the other side of the fourth electrode mounting body 290 .

The fifth electrode plate 300 may be attached to the mounting groove 291 on the other side of the fourth electrode mounting body 290 and may be in contact with the inner surface of the second housing 212 . A through hole 302 may be formed in the center of the fifth electrode plate 300 , and a pair of terminal holes 304 may be formed on both sides of the through hole 302 in the radial direction. The anode terminal 306 may be inserted into one of the pair of terminal holes 304 to be coupled thereto. Although it is shown that the anode terminal 306 is coupled to the fifth electrode plate 300 in the drawing, the anode terminal 306 may pass through all five electrode plates and may be coupled by fastening nuts.

The fluid flowing through the through hole 296 and the flow path 293 of the fourth electrode mounting body 290 is transferred to the center through hole 302 of the fifth electrode plate 300 and the second housing 212 . It may be discharged through the outlet 214 .

As shown in FIG. 13 , a plurality of protrusions 245 are formed on one side of the second electrode plate 240 seated in the mounting groove 251 on one side of the second electrode mounting body 250 , and the third A plurality of projections 285 may be formed on the other side of the fourth electrode plate 280 seated in the mounting groove 271 on the other side of the electrode mounting body 270 . Water containing an electrolyte such as chlorine ions (Cl ⁻ ) flows onto one side of the second electrode plate 240 , and passes through the third electrode plate 260 onto the other side of the fourth electrode plate 280 . can move At this time, more vortex flow is caused by the plurality of projections 245 of the second electrode plate 240 and the plurality of projections 285 of the fourth electrode plate 280 to further improve the electrolysis performance, so that the The production concentration may be higher.

As shown in FIG. 14 , the water flowing into the inlet passage 254 formed in the edge portion of one side of the second electrode mounting body 250 flows to the center through the radial flow passage 252 and the flow passage 253 . can do.

As shown in FIG. 15 , the water passing through the flow path 253 at the center of the other side of the second electrode mounting body 250 passes through the radial flow path 252 and radially through the circumferential flow path inside the rim portion. It can flow out of the direction.

As shown in FIG. 16 , in the electrode assembly 200, the fluid introduced into the housing 210 through the inlet 213 flows radially outward and then inwardly flows again in the radial direction, repeating several times, and then sterilization It may be reformed into water and discharged to the outlet 214 . Although it has been described that the electrode assembly 200 is composed of 4 electrode plates and 4 electrode mounting bodies, it is composed of 6 electrode plates and 6 electrode mounting bodies or 8 electrode plates and 8 electrode mounting bodies or more. It may be composed of an even number of electrode plates and an electrode mounting body. In this case, the number of radial flow of the fluid increases by that much, and the electrolysis performance is improved, so that the concentration of hypochlorous acid in the sterilizing water may be higher.

An example of the operation control method of the air purifier sterilizer of the present invention will be described with reference to FIG. 17 .

The controller 180 may control the air purifier and sterilizer 100 to spray sterilizing water every predetermined time in a basic timer mode including a timer. That is, every 2 hours, every 3 hours, or once every 4 hours, it is possible to control to spray the sterilizing water for 30 minutes or 60 minutes. In this case, the blower fan 160 may be controlled to rotate at 800 rpm when the disinfecting water is not sprayed, and rotate at 1200 rpm while the disinfecting water is sprayed.

Then, when the control unit 180 determines that the concentration of fine dust is high from the dust sensor 191 or that the temperature and humidity are higher than predetermined values from the temperature sensor 192 and the humidity sensor 193, the control unit 180 sprays the sterilization water for a predetermined time. Alternatively, it is possible to control the spraying of the sterilizing water until the detected value falls below a predetermined value.

Also, when it is determined by the gas sensor 194 that the concentration of harmful gases such as VOCs, H2S, NH2, etc. is higher than a predetermined value, the control unit 180 injects the sterilizing water for a predetermined time or lowers the concentration value to a predetermined value or less. It can be controlled to spray the sterilizing water until it falls. When spraying the sterilizing water in this way, the blowing fan 160 can be rotated more strongly than usual.

Meanwhile, the controller 180 may stop the humidity sensing operation of the humidity sensor 193 while spraying the sterilizing water, and determine whether the operation is performed by using the humidity detection value immediately before spraying as the current humidity value. When the sterilizing water is sprayed, the humidity around the air purifying sterilizer 100 increases, and even when there is no need to spray the sterilizing water, there may be a problem in that the spray operation is operated due to the high humidity. Although there may be differences depending on the installation location of the humidity sensor 193, as long as the humidity sensor 193 is installed inside the air purifier 100, it is difficult to accurately measure the average humidity of the entire indoor space. . Therefore, by stopping the humidity detection while spraying the disinfecting water and continuing to use the previous detection value, it is possible to precisely control whether the spraying of the disinfecting water is operated at a necessary time.

18 is a diagram illustrating control of a voltage applied to an electrode assembly to maintain a concentration of a sterilizing component in a sterilization water within a predetermined range.

The control unit 180 controls the magnitude of the voltage applied to the electrode assembly 200 according to the electrolyte concentration of the water supplied to the bucket 110 to maintain the current within a predetermined range, so that the sterilization water generated in the electrode assembly 200 is The concentration of the sterilizing component may be maintained within a predetermined range.

The air purifier and sterilizer 100 includes a power supply, a voltmeter, and an ammeter, which may be connected to the controller 180 .

Since it is unknown whether the water supplied to the electrode assembly 200 is tap water or brine, and the salt concentration of the brine cannot be known, in any case, the hypochlorous acid of the sterilization water is generated by controlling the voltage to maintain it within a predetermined current value range. The concentration can be maintained within a predetermined range.

Assuming that tap water is basically supplied to the electrode assembly 200, a voltage of 24V is supplied, and the current is 0.25A. When the current value gradually increases and becomes 0.5A over time, the controller 180 lowers the voltage to 12V. The increase in the current value is due to the inflow of salt water. When a large current flows through the electrode assembly 200, the hypochlorous acid concentration of the generated sterilization water becomes too large, so by lowering the voltage value to 12V corresponding to brine, it is possible to prevent the hypochlorous acid concentration from exceeding 12ppm and from becoming too large. have.

Next, when the brine is supplied to the electrode assembly 200, a 12V voltage is supplied, and at this time, the appropriate current value is 0.45A and the maximum limit of the current value is 0.7A. When the current value gradually decreases to 0.15A over time, the controller 180 increases the voltage to 24V. The decrease in the current value is due to the inflow of tap water. When too little current flows through the electrode assembly 200, the hypochlorous acid concentration of the generated sterilization water becomes too small. can

Finally, when salt water is supplied to the electrode assembly 200 to supply a voltage of 12V, the current becomes 0.45A. When the current value gradually increases to 0.7A over time, the controller 180 may control the current value to be maintained at 0.7A without being higher. The reason that the current value rises above 0.7A while brine is supplied is due to excessive salt input. As the salt concentration of the brine increases, the hypochlorous acid concentration of the sprayed sterilization water may become too high to be harmful to humans.

As described above, the air purifying sterilizer 100 of the present invention provides the sterilization water generated by controlling the voltage and current of the power applied to the electrode assembly even when the user does not add salt or exceeds a predetermined amount of salt. The hypochlorous acid concentration can be maintained within a predetermined range.

As described above, one embodiment of the present invention has been described, but those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. Various modifications and changes of the present invention will be possible by this, and this will also be included within the scope of the present invention.

100: air purifier sterilizer 101: housing
105: front cover 106: side cover
110: water bucket 111: salt inserter
112: auxiliary bucket 113: water level sensor
115: first valve 120: pump
125: second valve 130: flow sensor
140: pressure switch 150: safety valve
160: blow fan 162: UV LED
165: air filter 170: nozzle
175: spray filter 180: control unit
190: sensor unit 191: dust sensor
192: temperature sensor 193: humidity sensor
194: gas sensor 196: current sensor
197: conductivity sensor 200: electrode assembly
210: housing 211: first housing
212: second housing 213: inlet
214: outlet 218: sealing member
220: first electrode plate 222: through hole
224: terminal hole 230: first electrode mounting body
231: mounting groove 232: through hole
234: entrance passage 236: through hole
240: second electrode plate 244: terminal hole
245: protrusion 250: second electrode mounting body
251: mounting groove 252: radial flow path
253: flow passage 254: entrance passage
260: third electrode plate 262: through hole
264: terminal hole 265: projection
270: third electrode mounting body 271: mounting groove
272: radial flow path 273: flow path
274: entrance passage 276: through hole
280: fourth electrode plate 284: terminal hole
286: cathode terminal 290: fourth electrode mounting body
291: mounting groove 293: flow path
294: entrance passage 296: through hole
300: fifth electrode plate 302: through hole
304: terminal hole 306: anode terminal

Claims (12)

a water tank installed inside the housing and containing an electrolyte;
a pump for pumping water from the bucket;
an electrode assembly that electrolyzes high-pressure water pressurized by the pump to generate sterilizing water containing a sterilizing component;
a nozzle for spraying the sterilizing water; and
A control unit for controlling the operation of the bucket, pump, and electrode assembly,
In the electrode assembly, a plurality of electrode plates and a plurality of electrode mounting bodies are alternately combined,
At least one of the plurality of electrode plates includes a plurality of protrusions formed on a surface through which water flows. According to claim 1,
The plurality of protrusions are formed in one of a cone, a hemispherical shape, and a cylinder shape. 3. The method of claim 2,
The air purifier sterilizer, characterized in that the plurality of projections are arranged at predetermined intervals inside the fan shape. According to claim 1,
The electrode assembly is
A housing having an inlet on one side and an outlet on the other side;
a first electrode plate disposed inside the injection hole of the housing;
a first electrode mounting body attached to one side of the first electrode plate inside the rim and having a through hole in the center;
a second electrode plate attached to the other side of the first electrode mounting body and having the plurality of protrusions formed on one side thereof;
a second electrode mounting body having the second electrode plate attached to the inner side of the rim on one side and having a radial flow path penetrated inside the rim;
a third electrode plate attached to the other side of the second electrode mounting body and having a through hole in the center thereof;
a third electrode mounting body attached to one side of the third electrode plate inside the rim and having a flow path formed around the center of one side;
a fourth electrode plate attached to the other side of the third electrode mounting body and formed with the plurality of protrusions on the other side;
a fourth electrode mounting body having the fourth electrode plate attached to one side and a flow path formed in the center of the other side;
and a fifth electrode plate attached to the inside of the rim of the fourth electrode mounting body and disposed inside the outlet of the housing. 5. The method of claim 4,
The electrode assembly is
and a cathode terminal and an anode terminal coupled through the first electrode plate, the second electrode plate, the third electrode plate, the fourth electrode plate, and the fifth electrode plate, respectively. 6. The method of claim 5,
The first electrode plate, the third electrode plate, and the fifth electrode plate each include a through hole formed in the center of the air purifier sterilizer. 7. The method according to any one of claims 4 to 6,
the housing is
a first housing in which the injection hole is formed and a screw thread is formed on an outer circumferential surface;
a second housing in which the outlet is formed and a screw thread is formed on an inner circumferential surface to be coupled to the first housing;
and a sealing member interposed between the first housing and the second housing to seal a gap therebetween. According to claim 1,
The air purifier sterilizer according to claim 1, further comprising a spray filter disposed in front of the nozzle at an angle in the spraying direction of the sterilizing water and made of a fabric material. 9. The method of claim 8,
Auxiliary bucket disposed in the lower portion of the bucket;
a flow sensor for detecting a flow rate of the sterilization water generated in the electrode assembly;
a pressure switch for sensing the pressure of the sterilized water; and
and a safety valve installed downstream of the pressure switch to bypass the sterilization water to the auxiliary water tank when the pressure switch fails. 10. The method of claim 9,
The sterilizing water sprayed to the spray filter is sprayed while wet the spray filter, and the sterilizing water that wets the spray filter and flows down is drained into the auxiliary water tank. According to claim 1,
a water level sensor for detecting the water level in the auxiliary water tank;
a dust sensor that measures the concentration of fine dust indoors;
a temperature sensor that measures the indoor temperature;
Humidity sensor for measuring indoor humidity; and
Further comprising a gas sensor for measuring the indoor harmful gas concentration,
The control unit receives the sensing signals from the sensors to control the operation of the water tank, the pump, and the electrode assembly. According to claim 1,
The control unit maintains the current within a predetermined range by controlling the magnitude of the voltage applied to the electrode assembly according to the electrolyte concentration of the water supplied to the bucket, thereby maintaining the concentration of the sterilizing component in the sterilization water generated in the electrode assembly within the predetermined range. Air purifier sterilizer, characterized in that.

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