KR102180182B1 - Hand sterilizer using plasma - Google Patents

Abstract

The present invention provides a hand sterilizer having a structure which does not require a user′s contact, can be used conveniently, and can minimize extra time and effort for maintenance. The present invention comprises: a hand sterilization unit installed in the front of a housing and having a water supply nozzle for discharging sterilized water; and a sterilized water supply device installed inside the housing and supplying sterilized water to the water supply nozzle, wherein the sterilized water supply device comprises a water supply unit, a sterilized water manufacturing unit receiving water and mixing plasma-treated air into water to manufacture sterilized water, and a pump supplying the sterilized water to the water supply nozzle.

Description

Hand sterilizer using plasma {HAND STERILIZER USING PLASMA}

The present invention relates to a hand sterilizer using plasma, and more particularly, by supplying plasma-treated air to water to generate sterilized water and discharging the sterilized water through a water supply nozzle, hand washing and sterilization are possible with sterilized water. It is about a hand sterilizer.

At sites where hygiene management is very important, such as food manufacturing plants, food service establishments, and schools, rules such as hand washing are strictly followed to prevent contamination accidents by workers and users.

In addition, since entrance doors of multi-use facilities, elevator buttons, shopping carts in large stores, and handles of public transportation facilities are contaminated with various germs as many users come into contact with them, it is emphasized that hygiene management such as frequent hand washing is performed after using them. Has become.

1 and 2 are related to a conventional hand sterilizer to maintain good hygiene of hands through sterilization when the hands are contaminated with bacteria or are likely to be contaminated, according to Korean Utility Model Registration No. 20-0450753. It is described.

1 and 2, a conventional hand sterilizer includes a housing 1, a disinfectant water storage tank 2a installed on the inner upper part of the housing 1, and a reaction tank 2b installed on one side of the disinfectant water storage tank 2a. A disinfecting water part 2 including, a heater part 3 having a plurality of heaters 3a connected to the washing water pipe 3b, and a saline solution at the lower inner end of the housing 1 spaced apart from the heater part 3 A storage tank 4 is constructed.

In addition, a drain sink 6 is formed on the front of the housing 1 to connect a drain pipe, and a discharge port 5 is installed at the top of the drain sink 6, and the discharge port 5 is a washing water discharge port ( 5a) and disinfectant water outlet (5b) are included.

In addition, the reaction tank (2b) is connected to the washing water pipe (3b) by a hose, and is connected to the saline solution storage tank (4) by a hose, and generates disinfectant water by generating sodium hypochlorite by causing an electrolytic reaction to water added with salt. do.

Accordingly, when the user presses the switch 7 to use the washing water, first wash the hands with warm washing water discharged from the washing water outlet 5a, and press the switch 7 again to use the disinfectant water from the disinfectant water outlet 5b. Wash your hands a second time with the discharged disinfectant water.

Looking at the configuration of the conventional hand sterilizer described above, since the user must discharge washing water and disinfectant water by pressing the switch 7 for hand sterilization, there is a problem that secondary contamination occurs due to contact with the switch 7.

In addition, in order to generate disinfectant water, since a separate saline solution storage tank 4 must be provided and electrolytically reacted, there is a problem that time and effort are required to supplement and manage the saline solution.

The present invention has been conceived from the above point of view, and an object of the present invention is to provide a hand sterilizer having a structure in which user contact is unnecessary and convenient use is possible, and time and effort for maintenance can be minimized.

Accordingly, the hand sterilizer using plasma according to the present invention includes a housing, a hand sterilizer provided on a front surface of the housing and having a water supply nozzle for discharging sterilizing water, and a hand sterilizer installed inside the housing and in the water supply nozzle. And a sterilizing water supply device for supplying sterilizing water, wherein the sterilizing water supply device comprises: a water supply unit; and a sterilization water production unit configured to prepare sterilized water by mixing plasma-treated air in water by receiving water from the water supply unit; It characterized in that it comprises a pump for supplying the sterilizing water to the water supply nozzle.

In addition, in the hand sterilizer using plasma according to the present invention, the water supply unit includes a storage tank, and the water in the storage tank is converted into sterilized water through the sterilizing water producing unit and stored again in the storage tank. And a circulation pipe connecting the tank and the sterilizing water production unit, wherein the pump is installed on the circulation pipe from the lower side of the sterilizing water production unit to pump water toward the sterilization water production unit so that water circulates, and the pump and the sterilization A water supply pipe connected to the water supply nozzle between the water production unit is connected to the circulation pipe, and the sterilized water of the storage tank is supplied to the water supply nozzle together with the circulation of water through the circulation pipe by pumping the pump. It is characterized.

In addition, in the hand sterilizer using plasma according to the present invention, the water supply unit includes a storage tank, and the water in the storage tank is converted into sterilized water through the sterilizing water producing unit and stored again in the storage tank. It includes a circulation pipe connecting the tank and the sterilizing water production unit, wherein the pump is installed on the circulation pipe to pump water to circulate, and is installed to face outward from the housing, and whether a human body exists within a predetermined range. The sterilizing water supply device and opening/closing by receiving a detection signal from the human body detection sensor for sensing, and the distance detection sensor for sensing the approach distance of the object, the opening and closing valve for opening and closing the water supply nozzle, and the human body detection sensor and the distance detection sensor Further comprising a controller for controlling the valve, the controller, when receiving a detection signal of the human body from the human body detection sensor, and stores the sterilized water in the storage tank by operating the pump in a state in which the on-off valve is closed, Another feature is to control to discharge sterilized water from the water supply nozzle by opening the opening/closing valve while the pump is operated when a detection signal approaching within a set distance is received from the distance sensor.

In addition, in the hand sterilizer using plasma according to the present invention, the sterilizing water producing unit mixes in water a reactor body generating unit for plasma treatment by inhaling air and in contact with the plasma, and the plasma-treated air in the reactive body generating unit And a gas mixing part to allow the gas mixing part to be formed at an end of the connection passage so that a tubular gas mixing pipe having a flow passage formed therein, a connection passage connected to the flow passage, and one end of the gas mixing pipe are inserted. One side coupling member including a coupling groove, and a cover member surrounding the gas mixing pipe and having a gas supply hole so that the plasma-treated air is introduced into a space between the gas mixing pipe and the gas mixing pipe. At one end of the groove, a gas suction groove is formed in which a furrow-shaped valley is connected from the outer surface to the flow path through the front surface, and one end of the gas mixing tube is inserted into the coupling groove so that the one-side coupling member forms the gas suction groove. Another feature is that by covering from the outside, a passage through which the plasma-treated air is sucked is formed.

In addition, the hand sterilizer using plasma according to the present invention includes a dielectric ball located in the gas supply hole and in contact with the outer surface of the gas mixing tube, and the plasma is coupled to the gas supply hole and is connected to the dielectric ball around the dielectric ball through an inner passage. A gas supply pipe through which the treated air is supplied; a discharge electrode disposed in the inner passage of the gas supply pipe and in contact with the dielectric ball at a side opposite to the side where the gas mixing pipe is located; and the discharge electrode and the gas mixing pipe, respectively It is further characterized in that it comprises a power source for generating plasma between the discharge electrode and the gas mixing tube.

The hand held device according to the present invention can wash hands with sterilized water discharged only by access without the need for the user to touch buttons, etc., and ozone and radical substances are included in the sterilized water by plasma treatment to prevent bacteria, viruses, and mold. It can effectively kill the back.

In addition, since the hand sterilizer according to the present invention produces sterilized water by plasma-treating air in the atmosphere with water such as supplied water, it is not equipped with chemical substances or raw materials that require separate management. You can minimize the time and effort required.

1 and 2 are schematic diagrams showing the configuration of a hand sterilizer for disinfecting hands through sterilization of washing water in the related art
3 is an explanatory diagram showing an external configuration of a hand sterilizer according to an embodiment of the present invention
Figure 4 is a schematic diagram showing the internal configuration of the hand sterilizer according to an embodiment of the present invention as viewed from the rear
5 is an explanatory view showing a state in which a user approaches a hand sterilizer according to an embodiment of the present invention to wash hands;
6 is a block diagram showing a control configuration of a controller in a hand sterilizer according to an embodiment of the present invention
7 is a configuration explanatory diagram showing the configuration of a sterilizing water manufacturing unit in a hand sterilizer according to an embodiment of the present invention
8 is a configuration explanatory diagram showing the configuration of a gas mixing unit in a hand sterilizer according to an embodiment of the present invention
9 is a perspective view showing a modified configuration of a gas mixing unit in the hand sterilizer according to another embodiment of the present invention
10 is a cross-sectional view showing a cross-sectional configuration in a state in which the gas mixing unit of FIG. 9 is combined
11A and 11B are configuration explanatory diagrams for explaining the configuration of a gas inlet groove in the gas mixing unit of FIG. 20
12 is a perspective view showing a modified configuration of a gas mixing unit in the hand sterilizer according to another embodiment of the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

3 and 4, the hand sterilizer using plasma according to an embodiment of the present invention includes a housing 10 and a water supply nozzle 23 installed on the front surface of the housing 10 and discharging sterilizing water. It includes a hand sterilization unit 20 provided, and a sterilizing water supply device 30 installed inside the housing 10 and supplying sterilizing water to the water supply nozzle 23.

The housing 10 is a part that forms the body of the hand sterilizer and covers the outside, and the sterilizing water supply device 30 is embedded therein, and the hand sterilizer 20 is installed on the front side of the housing 10. .

The hand sterilization unit 20 is provided with a water supply nozzle 23 at the top for washing, and a drainage 24 for receiving and draining the sterilized water falling from the water supply nozzle 23 is formed at the lower part. ) Is connected to the drain pipe 25 to discharge the used sterilized water.

Accordingly, the user can wash hands as shown in FIG. 5 by using the sterilizing water discharged from the water supply nozzle 23 and dropping from the drain 24.

4 is a view showing the internal structure from the rear side. Referring to FIG. 4, the sterilizing water supply device 30 includes a water supply unit 40 and plasma-treated air by receiving water from the water supply unit 40. And a sterilizing water producing unit 50 for preparing sterilized water by mixing the sterilized water in water, and a pump 61 for supplying the sterilized water to the water supply nozzle 23.

The water supply unit 40 is a part to which water for producing sterilized water is supplied, and can be supplied with normal water. It is connected to the storage tank 41 and the storage tank 41 to provide water to the storage tank 41. It includes a water supply pipe 42 to supply and supplement.

The controller 70 controls the water supply valve of the water supply pipe 42 so that the water level set in the storage tank 41 is maintained by the sensing value of the water level sensor installed in the storage tank 41 and intermittently through the water supply pipe 42. Make sure water is supplied.

The sterilizing water production unit 50 is a part that receives water from the water supply unit 40 and mixes plasma-treated air into water to produce sterilized water.

In order to prepare the water supplied to the sterilized water production unit 50 as sterilized water and store it in the storage tank 41, a circulation pipe 64 connecting the storage tank 41 and the sterilization water production unit 50 is installed. .

The circulation pipe 64 allows the water in the storage tank 41 to be converted into sterilized water through the sterilized water producing unit 50 and stored again in the storage tank 41.

In addition, a pump 61 is installed on the circulation pipe 64, but in this embodiment, a single pump 61 operates to supply sterilized water through the water supply nozzle 23, and the circulation pipe 64 Simultaneously pumping is performed so that the circulation of water through it is achieved together.

To this end, the circulation pipe 64 passes through the pump 61 and the sterilizing water production unit 50 sequentially by the circulation pipe 64 by flowing water out of the storage tank 41, and the water is transferred back to the storage tank 41. A circulation pipe 64 is connected to the storage tank 41 so that it is introduced.

The water that has passed through the sterilizing water production unit 50 is sterilized water in which plasma-treated air is mixed in water, and when the operation of the pump 61 is continued, the water in the storage tank 41 is gradually converted into sterilized water and replaced.

More specifically, the pump 61 is installed on the circulation pipe 64 from the lower side of the sterilized water production unit 50 to pump water toward the sterilized water production unit 50 so that water circulates, and sterilize with the pump 61 The water supply pipe 66 connected to the water supply nozzle 23 between the water production unit 50 is connected to be branched from the circulation pipe 64.

Accordingly, it is possible to supply the sterilized water of the storage tank 41 to the water supply nozzle 23 together with the circulation of water through the circulation pipe 64 by pumping the pump 61.

That is, when the pump 61 located at the lower side is operated and pumped toward the sterilizing water producing unit 50 located at the upper side, the pumping pressure is also transmitted to the water supply pipe 66, and the opening/closing valve 63 installed on the water supply nozzle 23 When) is opened, the sterilized water can be discharged through the water supply nozzle 23.

When the on/off valve 63 of the water supply nozzle 23 is closed, the circulation of water through the circulation line 64 may proceed with a strong pumping pressure, but when the on/off valve 63 is opened, the pumping pressure is distributed to the circulation line. The circulation of water through (64) weakens.

Therefore, in the present invention, when the user approaches, the pump 61 operates in a state in which the on/off valve 63 is closed, and rapidly circulates a large amount of water with a strong pumping pressure, so that the water in the storage tank 41 is quickly converted into sterilized water. A sufficient amount of sterilized water that can be replaced and used can be quickly secured, and the sterilization water is produced while the water is circulated by the circulation pipe 64 even at the time when the user's hand is washed by opening the on/off valve 63 This is done so that a sufficient amount and concentration can be maintained.

In the above configuration, the pumping operation for circulating water in the circulation pipe 64 and the discharge operation of the sterilized water through the water supply nozzle 23 are not performed by each pump 61, but are installed on the circulation pipe 64. By implementing it to be possible with a single pump 61, the configuration is simplified.

In order to smoothly circulate water in the circulation pipe 64 and discharge from the water supply nozzle 23 with a single pump 61, the sterilization water production unit 50 is placed on the upper side of the circulation pipe 64 and the pump is lower. Position (61), in a state before the pumping pressure of the pump (61) is depressurized by the sterilizing water production unit (50), so that smooth water can be supplied to the water supply nozzle (23) on the upper side, It is configured so that the water supply pipe 66 is branched at the position between the grandfather 50.

If the water supply pipe 66 is connected to the downstream part of the sterilized water production unit 50, sufficient pumping pressure to be supplied to the water supply nozzle 23 on the upper side is secured due to the loss of the pumping pressure by the sterilized water production unit 50. It's hard to be.

In addition, as above, the water supply pipe 66 is branched between the pump 61 and the sterilized water production unit 50 and connected to the water supply nozzle 23, which is provided with a storage tank 41 and immediately before use by the user. This is because it is configured so that a sufficient amount of sterilized water can be quickly secured in the storage tank 41.

These specific configurations and actions are related to the actions of the human body detection sensor 72 and the distance detection sensor 73 below.

The human body detection sensor 72 and the distance detection sensor 73 are installed to face the outside from the front of the housing 10 to detect the presence of a human body within a predetermined range and the proximity distance of the object, respectively.

The human body detection sensor 72 is installed to detect the user's access to the housing 10, and when the user approaches, it transmits a detection signal to the controller 70 and operates the pump 61 to operate the storage tank 41 ), so that the sterilization water can be quickly secured.

The distance detection sensor 73 detects the distance that the user approaches from the hand sanitizer 20 to a state in which hands can be washed, and is secured in the storage tank 41 by detection of the distance detection sensor 73 The sterilized water is discharged from the water supply nozzle (23).

The human body detection sensor 72 may be an infrared sensor that detects infrared rays of the human body, and the distance detection sensor 73 may be an ultrasonic sensor, but may be replaced with various types of known sensors.

The controller 70 operates the pump 61 of the sterilizing water supply device 30 by receiving the detection signals from the human body detection sensor 72 and the distance detection sensor 73 as shown in FIG. 6 and opens the opening/closing valve 63, respectively. Control.

Referring to Figures 3 and 6, looking at the operation process of the controller 70 by detection of the human body sensor 72 and the distance sensor 73, first, the user's hand washing in the hand sterilizer of the present invention. When approaching within a predetermined range for this purpose, the human body detection sensor 72 detects it and transmits a detection signal to the controller 70.

The controller 70, upon receiving the detection signal of the human body sensor 72, operates the pump 61 and forms the opening/closing valve 63 in a closed state, so that the water in the storage tank 41 is sterilized. The sterilized water is supplied to the grandfather 50 to be prepared, and the prepared sterilized water is again introduced into the storage tank 41 so that the water in the storage tank 41 is rapidly replaced with sterilized water and stored.

Thereafter, when the user approaches the hand sanitizer 20 and receives a detection signal approaching within the set distance from the distance sensor 73, the controller 70 operates the on/off valve 63 in the state in which the pump 61 is operated. By opening the control to discharge the sterilized water from the water supply nozzle (23).

Accordingly, while the sterilized water and water in the storage tank 41 are continuously circulated through the pump 61, sterilization water is produced and reprocessed, while sterilization through the water supply line 66 branched from the circulation line 64 Water is supplied to the water supply nozzle 23 so that the sterilized water falls from the water supply nozzle 23 in the hand sterilization unit 20.

The user can hand-wash the sterilized water discharged with only access without separate contact with a button, as shown in Fig. 5, and bacteria and viruses due to ozone and radical substances contained in the sterilized water by plasma treatment of air , Mold, etc. can be killed.

After the user's hand washing, when the hand disinfection unit 20 is separated, the distance sensor 73 checks the user's departure state from the set distance, and the controller 70 closes the on/off valve 63 to prevent the water supply nozzle 23 ) Is blocked and the human body detection sensor 72 does not detect the human body within a predetermined range, the controller 70 also stops the operation of the pump 61.

On the other hand, the sterilizing water production unit 50, a reactor body generating unit 51 for plasma treatment by inhaling air and in contact with plasma, and the plasma-treated air generated by the reaction body generating unit 51 are mixed in water. It includes a gas mixing unit 52 to let.

Referring to Figure 7, the reactor body generating unit 51 is a transparent fluid flow pipe (51c) through which sterilizing water passes, and a plasma is generated on the outer peripheral surface of the fluid flow pipe (51c) by winding around the outer circumferential surface of the fluid flow pipe (51c). The plasma generation electrode 51b and the gas flow tube 51d surrounding the outside of the plasma generation electrode 51b and the fluid flow tube 51c so that air flows through the space 51e between the fluid flow tube 51c Includes.

The plasma generating electrode 51b is wound around the outer circumferential surface of the fluid flow tube 51c, and faces the counter electrode with the fluid flow tube 51c as a dielectric therebetween, thereby providing a creepage discharge type plasma on the outer circumferential surface of the fluid flow tube 51c. Can occur.

A gas flow pipe 51d is enclosed on the outside of the fluid flow pipe 51c at a predetermined interval, and the air sucked from the suction port 51a flows through the space 51e between the gas flow pipe 51d and the fluid flow pipe 51c. Do it.

The flowing air is in contact with the creepage plasma generated around the plasma generating electrode 51b on the outer surface of the fluid flow pipe 51c, and active substances such as ozone and OH radicals are generated, and the gas flow pipe 51d and the fluid flow pipe 51c The plasma-treated air passing through the interspace 51e is supplied to the gas mixing unit 52 through the connection pipe 53.

Referring to FIG. 8, the gas mixing part 52 is a part in which the connection pipe 53 is coupled by the connector 52c to suck and mix plasma-treated air at a level.

The gas mixing unit 52 forms a gas mixing pipe 52a so that the diameter of the flow path through which water flows is narrowed to increase the flow velocity, and is distributed around the outer circumferential surface of the gas mixing pipe 52a, so that a plurality of gas suction holes ( 52b) is formed.

When water passes through the gas mixing pipe (52a) having a narrowed flow path and passes through the gas suction hole (52b), a pressure drop occurs due to the flow rate, and the plasma-treated air is passed through the gas suction hole (52b). Through the natural inhalation action occurs.

When the air is inhaled, the plasma-treated air is dispersed in the water in the gas suction hole 52b to convert the water into sterilized water. Since plasma-treated air contains ozone and radical substances by reaction with plasma, water can have sterilizing power.

Meanwhile, according to another embodiment of the present invention, the gas mixing unit 52 may be changed to the following configuration.

9 and 10, the gas mixing unit 52 includes a tubular gas mixing pipe 110 having a flow path 115 formed therein, and a connection flow path 123 connected to the flow path 115. One-side coupling member 120 including a coupling groove 121 formed at the end of the connection passage 123 so that one end of the gas mixing pipe is inserted, and the gas mixing pipe 110 and the gas mixing pipe 110 It includes a cover member 130 having a gas supply hole 132 so that plasma-treated air is introduced into the interspace 133.

The gas mixing pipe 110 is a tubular member having a flow path 115 formed therein, and a gas suction groove 112 for supplying plasma-treated air to water passing through the flow path 115 and mixing it with water Is formed.

One side coupling member 120 is coupled to one end of the gas mixing pipe 110, and the other coupling member 140 is coupled to the other end of the gas mixing pipe 110.

Accordingly, the connection passage 143 of the other coupling member 140, the flow passage 115 of the gas mixing pipe 110, and the connection passage 123 of the one-side coupling member 120 are sequentially connected and communicated, so that water It can flow continuously.

The one-side coupling member 120 has a connection passage 123 connected to the flow passage 115 and a coupling groove 121 formed at the end of the connection passage 123 so that one end of the gas mixing pipe 110 is inserted. Has been.

The coupling groove 121 is a portion for processing a groove having a diameter larger than that of the connection passage 123 at the end of the connection passage 123, and the connecting passage 123 is formed to be located at the center so that the connecting passage 123 and The coupling groove 121 is connected.

When one end of the gas mixing pipe 110 is inserted into the coupling groove 121, the connection passage 123 and the flow passage 115 are connected to each other.

At one end of the gas mixing pipe 110, a gas suction groove 112 having a furrow shape or a valley (valley) shape connected from the outer surface to the flow path 115 through the front surface is formed, and the gas mixing pipe 110 One end of the coupling groove 121 is inserted into the coupling groove 121 so that the one-side coupling member 120 covers the gas suction groove 112 from the outside, thereby forming a passage for sucking air from the outside of the gas mixing pipe 110 into the inside. .

Referring to the enlarged part of FIG. 9, at one end of the gas mixing pipe 110, a head 111 having an outer diameter larger than that of the middle portion of the gas mixing pipe 110 is formed and included, and the head 111 The outer groove 112a formed to pass through the head 111 along the longitudinal direction of the gas mixing pipe 110, and the front of the head 111 by bending a path to be continuous with the outer groove 112a By being formed in the flow path 115, including an inner groove part 112b in communication with the flow path 115, it is connected from the outer surface of the gas mixing pipe 110 to the flow path 115.

In addition, one end portion of the gas mixing pipe 110 is in close contact with the inner circumferential surface of the coupling groove 121 while the head 111 is in close contact with the inner circumferential surface of the coupling groove 121 of the one-side coupling member 120, and one coupling member 120 The gas intake groove 112 may be covered from the outside.

Accordingly, in the structure of the furrow shape in which the surface of the gas intake groove 112 as a whole is open, the one-side coupling member 120 covers the outside and connects the inside and outside of the gas mixing pipe 110. Can be converted into a structure.

Accordingly, when the water continuously flows through the flow path 115 and the connection channel 123, the plasma-treated air from the outside of the gas mixing pipe 110 due to the pressure drop due to the flow rate is removed from the gas suction groove 112 It can be sucked through and mixed with water.

In addition, referring to FIG. 11, a plurality of gas intake grooves 112 are installed at regular intervals along the circumference of the flow path 115, and the inner groove 112b has a cross section of the flow path 115. As a reference, it is connected to the flow path 115 in a deflected state along one rotation direction.

Accordingly, when the air sucked through the gas intake groove 112 is introduced so that it is mixed with water, it is introduced in a vortex shape and the flowing water can be rotated in one direction by the flow rate. During the process, the plasma-treated air and water in the form of microbubbles rotate together, so that evenly mixing can be achieved.

Meanwhile, the cover member 130 is a tubular member surrounding the gas mixing pipe 110, and both ends are helically coupled to the one coupling member 120 and the other coupling member 140, respectively, and the gas mixing pipe 110 A space 133 between and is formed.

In addition, the gas supply hole 132 for receiving the plasma-treated air is formed through to connect the inside and outside so that the connector 135 is coupled, so that the plasma-treated air can be supplied to the space.

In this embodiment, the gas suction groove 112 is formed equally not only at one end of the gas mixing pipe 110 but also at the other end, and the coupling groove 141 into which the other end of the gas mixing pipe 110 is inserted is the other side. It is also formed in the coupling member 140 and configured to couple the gas mixing pipe 110 and the other coupling member 140 to each other.

Accordingly, the plasma-treated air supplied to the space 133 between the gas mixing pipe 110 and the cover member 130 passes through each of the gas suction grooves 112 at one end and the other end of the gas mixing pipe 110. Each bar can be sucked into water and mixed, so that a large amount of plasma-treated air can be mixed.

On the other hand, Figure 12 is, according to another embodiment of the present invention, the dielectric ball 151 is positioned in the gas supply hole 132 of the cover member 130 and the discharge electrode 152 is installed to generate plasma. It is configured to plasma-process the air flowing into (132). This can further increase the concentration of ozone and radical substances contained in the air by plasma-treating the air introduced by plasma treatment again.

Referring to FIG. 12, a dielectric ball 151 located in a gas supply hole 132 and in contact with the outer surface of the gas mixing pipe 110, and a dielectric ball 151 coupled to the gas supply hole 132 through an inner passage. ) A gas supply pipe 153 for supplying air to the surroundings, and a discharge electrode that is located in the inner passage of the gas supply pipe 153 and contacts the dielectric ball 151 from the side opposite to the side where the gas mixing pipe 110 is located. 152 and a power supply connected to the discharge electrode 152 and the gas mixing pipe 110 to generate plasma between the discharge electrode 152 and the gas mixing pipe 110, respectively.

When plasma discharge is made in the discharge electrode 152 on the upper surface of the dielectric ball 151 by the power, the plasma flows down toward the gas mixing tube 110 on the surface of the dielectric ball 151 in the form of creepage discharge. A discharge area is formed.

This is generated in a state where plasma is spread on the surface of the dielectric ball 151, so that air supplied through the inner passage of the gas supply pipe 153 passes through the circumference of the dielectric ball 151, the cover member 130 and the gas mixing pipe ( When entering the space 133 between the dielectric ball 110 and the dielectric ball 151, the plasma may be processed by contacting the plasma over a wide range of the surface.

Although preferred embodiments of the present invention have been described above, the above embodiments are only one embodiment within the scope of the technical idea of the present invention, and for those skilled in the art, within the technical scope of the present invention Of course, other modified implementations are possible.

10; Housing 20; Hand sanitizer
23; Water supply nozzle 24; Drainage
25; Drain pipe 30; Sterilizing water supply device
40; Water supply 41; Storage tank
42; Water supply pipe 50; Sterilizing water manufacturing department
51; Reactor body generation unit 51a; Inlet
51b; Plasma generating electrode 51c; Fluid flow pipe
51d; Gas flow pipe 51e; space
52; Gas mixing unit 52a; Gas mixing pipe
52b; Gas intake hole 52c; Connector
53; Connector 61; Pump
63; On-off valve 64; Circulation
66; Water supply line 70; Controller
72; Human body detection sensor 73; Distance sensor
110; Gas mixing tube 111; Head
112; Gas intake groove 112a; Outer groove
112b; Inner groove 115; Flow path
120; One side coupling member 121; Coupling groove
123; Connecting flow 130; Cover member
132; Gas supply hole 133; space
135; Connector 140; Other coupling member
141; Coupling groove 143; Connection
151; Dielectric ball 152; Discharge electrode
153; Gas supply pipe

Claims (5)

With the housing,
A hand sanitizing unit installed on the front of the housing and having a water supply nozzle for discharging sterilizing water,
A sterilization water supply device installed inside the housing and supplying sterilization water to the water supply nozzle,
The sterilizing water supply device,
With water supply,
A sterilization water production unit that receives water from the water supply unit and mixes plasma-treated air into water to produce sterilized water,
Includes a pump for supplying the sterilizing water to the water supply nozzle,
The sterilizing water producing unit includes a reactor body generating unit for plasma treatment by inhaling air and contacting the plasma, and a gas mixing unit for mixing the plasma-treated air in the reaction unit generating unit in water,
The gas mixing unit,
A tubular gas mixing pipe with a flow path formed therein,
One-side coupling member comprising a coupling groove formed at an end of the connection passage so that a connection passage connected to the flow passage and one end of the gas mixing pipe are inserted,
And a cover member having a gas supply hole surrounding the gas mixing tube and allowing the plasma-treated air to flow into the space between the gas mixing tube,
At one end of the gas mixing pipe, a plurality of gas suction grooves are formed in which a furrow-shaped valley is connected from the outer surface to the flow path through the front surface,
Hand sterilizer using plasma, characterized in that one end of the gas mixing tube is inserted into the coupling groove so that the one-side coupling member covers the gas suction groove from the outside The method of claim 1,
The water supply unit includes a storage tank,
And a circulation pipe connecting the storage tank and the sterilizing water producing unit so that the water in the storage tank is converted into sterilized water through the sterilizing water producing unit and stored again in the storage tank,
The pump is installed on the circulation pipe from the lower side of the sterilizing water producing part to pump water toward the sterilizing water producing part to circulate water,
A water supply pipe connected to the water supply nozzle between the pump and the sterilizing water producing unit is connected to the circulation pipe, and the sterilized water of the storage tank is supplied to the water supply nozzle together with water circulation through the circulation pipe by pumping the pump. Hand sterilizer using plasma, characterized in that supplied to the The method of claim 1,
The water supply unit includes a storage tank,
And a circulation pipe connecting the storage tank and the sterilizing water production unit so that the water in the storage tank is converted to sterilized water through the sterilizing water production unit and stored again in the storage tank, wherein the pump is on the circulation pipe Installed to pump water to circulate,
A human body detection sensor that is installed to face the outside from the housing, and detects the presence of a human body within a predetermined range, and a distance detection sensor that detects an approach distance of an object;
An opening/closing valve for opening and closing the water supply nozzle,
Further comprising a controller for controlling the sterilizing water supply device and the opening/closing valve by receiving a detection signal from the human body detection sensor and the distance detection sensor,
The controller,
When a human body detection signal is received from the human body detection sensor, the pump is operated while the on/off valve is closed to store sterilized water in the storage tank,
Hand sterilizer using plasma, characterized in that when receiving a detection signal approaching within a set distance from the distance detection sensor, opening the opening/closing valve while the pump is running to discharge sterilized water from the water supply nozzle delete The method of claim 1,
A dielectric ball located in the gas supply hole and in contact with the outer surface of the gas mixing tube,
A gas supply pipe coupled to the gas supply hole to supply the plasma-treated air around the dielectric ball through an inner passage;
A discharge electrode located in the inner passage of the gas supply pipe and in contact with the dielectric ball at a side opposite to the side where the gas mixing pipe is located;
Hand sterilizer using plasma, characterized in that it includes a power source connected to the discharge electrode and the gas mixing tube to generate plasma between the discharge electrode and the gas mixing tube

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