KR100918474B1 - Oral irrigator with plasma generating apparatus - Google Patents

Abstract

PURPOSE: A dental cleaner equipped with a plasma generating device is provided, which enables to sterilize cleaning water in a safe method that is harmless to the human body and environment. CONSTITUTION: A dental cleaner equipped with a plasma generating device includes a plasma generation part and the plasma fixing unit. The plasma generation part(100) is equipped with a first electrode, a spacer, a second electrode, a grill, a grill base, a first electrode, and a second electrode. The first electrode is made of conductive material. The spacer(120) has the fixed thickness and is made of the insulating material. The second electrode(130) is installed at an interval from the first electrode. The plasma fixing unit(200) is equipped with a nut, a packing ring, and the main body.

Description

Oral irrigator with plasma generator {Oral Irrigator with plasma generating apparatus}

The present invention relates to an oral irrigator having a low temperature plasma generator, and more particularly, to an oral irrigator that implements sterilization function of externally sprayed cleaning water for cleaning teeth using low temperature plasma.

In general, dental disease and gum disease are usually caused by neglecting tooth cleaning after ingesting food, so cleaning the teeth within a certain time after eating food is the most important and basic element to keep the teeth and gums healthy. To be used for cleaning and cleaning of teeth, toothbrushes, toothpicks, dental floss, and the like are used.

Toothbrushes can be easily used to remove foreign substances stuck to the outside of the tooth, but it is difficult to completely remove the foreign substances stuck between the teeth or between teeth, and brushing can not wipe all the tooth surface evenly, Toothpicks can remove teeth or other foreign substances caught between teeth, but it is impossible to clean the entire surface of teeth, and it can cause gum disease by deforming teeth or damaging gums. It is known as the best dental cleaning method, but only a few users are used because the floss manipulation is considered to be complicated by unskilled users.

In order to solve these disadvantages, an oral cleaner is used to remove foreign substances adhering to and between the teeth and the gum by using a powerful hydraulic pressure, such an oral cleaner is a device for spraying water intermittently or continuously. Users are gradually increasing due to various advantages of being able to remove foreign substances in difficult-to-remove parts, as well as obtaining oral cleaning and gum massage effects by the pressure of the ejected water.

The mouthwasher generally contains a predetermined amount of cleaning solution and a water tank 10 formed to deliver the cleaning liquid at a predetermined pressure, one side of which is connected to the water tank 10, and a conduit 40 and a hose to supply the cleaning liquid, The other side of the conduit 40 and the hose is connected to the injection nozzle 30 is discharged to the outside of the cleaning liquid discharged from the water tank 10, the water tank 10 or the conduit 40 on the water tank (10) ) Has a structure in which a motor 50 and a pump 60 are installed to transfer the cleaning liquid to the injection nozzle 30 at a predetermined pressure.

When the cleaning liquid such as water is filled in the oral cavity water tank 10 and power is supplied to the motor 50, the water in the water tank 10 is rotated by the rotation of the motor 50 and the injection nozzle 30 at a predetermined pressure. Is sprayed to the outside through the user, by varying the position and direction of the injection nozzle 30 in the oral cavity, the position and direction in which the cleaning liquid is in contact with the teeth is changed to the injection pressure of the cleaning liquid It will remove foreign substances.

The conventional mouthwash having the structure described above has an excellent effect in removing foreign substances in the oral cavity by the use method as described above, but can not sterilize and disinfect the oral cavity, thereby preventing gum disease caused by bacterial propagation. Inconvenient and burdensome method such as using expensive distilled water instead of general tap water because the cleaning solution itself is not able to prevent contamination or bacteria from breeding due to stagnation on the water tank 10 or the pipe supplying the cleaning solution. There was a problem using.

The present invention devised to solve the above problems, while being able to effectively remove foreign substances in the oral cavity using high-pressure washing water, it is possible to sterilize and disinfect the oral cavity to prevent gum disease caused by bacterial breeding. It is excellent and aims to provide a mouthwash that can be continuously supplied and used by sterilizing the washing water itself such as general tap water in a safe manner that is not harmful to human body and environment.

The present invention for achieving the object as described above, in the oral cavity for spraying the washing water at a predetermined water pressure to remove foreign matter between the teeth by using a high-pressure washing water, the water tank (10) for receiving the washing water or washing It is installed on the cleaning water supply conduit for supplying water, the first electrode 110 made of a conductive material, the spacer member 120 made of an insulating material and having a predetermined thickness between the spacer member 120 The second electrode 130 spaced apart from the first electrode 110, the first electrode 110, the spacer 120, and the second electrode 130 are accommodated therein and are mutually coupled to each other. A grill 140 and a grill base 150 having a plurality of through-holes through which water passes, and a bolt-shaped first electrode rod connected to the first electrode 110 and the second electrode 130 to be electrically connected to each other. A low temperature plasma generator 100 having a 161 and a second electrode 162 therein; And a watertight space formed separately from the water tank 10 or the washing water supply conduit, and screwed to the ends of the first electrode rod 161 and the second electrode rod 162 of the low temperature plasma generator, and the low temperature plasma. Between the nut 210 for fixing the generating unit 100 on the structure 20 of the oral cleaner, and the structure 20 and the nut 210 of the oral cleaner to seal the electrode rod 160 around the nut. Plasma fixing part 200 is provided with a packing ring 220 is inserted, and the main body 230 is connected to support the nut 210 toward the electrode rod 160 side and is fixed on the structure 20 of the mouthwasher. Oral cleaning device equipped with a low-temperature plasma generating device configured to include;

Here, the pressure bolt 310 is installed on the structure 20 of the mouthwasher so that the bolt head is connected to the body 230 or the nut 210 or the body 230 and the nut 210 of the plasma fixing part. And, the T-shaped cylindrical insertion hole 320 is installed between the structure 20 and the pressure bolt 310 of the oral cleaner, and the insertion hole 320 to elastically press the bolt head side of the pressure bolt 310. It is preferably configured to further include; auxiliary support 300 is provided with an elastic spring 330 to be installed.

In addition, the low temperature plasma generating unit 100, when coupled to the water tank 10, the conduit 40 for supplying the washing water to the injection nozzle 30 for externally spraying the washing water to the water tank (10) It is preferable to have the ring shape which penetrated the center part so that installation to the center part of a floor is possible.

In addition, the first electrode 110 and the second electrode 130 of the low temperature plasma generator have a mesh shape through which washing water can pass, and the body of the first electrode rod 161 and the second electrode rod 162 having a bolt shape. A bolt head through-hole having an enlarged diameter compared to the through-hole of the body portion through which the body portion through-hole formed in a size capable of passing only the portion, and the bolt heads of the first electrode rod 161 and the second electrode rod 162 can pass therethrough. Preferably, the holes are spaced apart.

In addition, the nut 210 of the plasma fixing part is connected to a power supply line, and a power supply nut for supplying power to any one of the first electrode rod 161 and the second electrode rod 162 and a ground structure. Preferably, the first electrode 161 and the second electrode 162 are configured to include a grounding nut for grounding the other one to which power is not connected.

The present invention by the above-described configuration, while being able to effectively remove foreign substances in the oral cavity using high-pressure washing water, it has a strong oxidation and sterilizing power generated by the low-temperature plasma generated in the water by the operation of the low-temperature plasma generation unit The hydroxyl group can be used to sterilize and disinfect the oral cavity, thereby effectively preventing gum disease caused by bacterial propagation.

In addition, by operating the low-temperature plasma generator, the washing water itself can be sterilized in a safe manner that is not harmful to the human body and the environment, so that the washing water such as general tap water is sprayed through the water tank or the water supply pipe at no additional cost. Another effect is that it is hygienic and convenient to use while being continuously supplied to the nozzle side.

The present invention having the configuration as described above will be described in more detail with reference to the following drawings.

1 and 2 are a perspective view and a partial exploded perspective view showing a first embodiment of an oral cavity cleaner having a low temperature plasma generating apparatus according to the present invention, respectively, FIG. 3 is an exploded perspective view of the low temperature plasma generating unit, and FIG. 5, 6, 7, and 8 are cross-sectional views taken along the lines AA, BB, CC, and DD of FIG. 4, respectively.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oral irrigator having a low temperature plasma generator, wherein in an oral irrigator for spraying cleansing water at a predetermined water pressure so as to remove foreign matter between teeth using high pressure cleansing water, washing water is generated by low temperature plasma generation. In addition to the low temperature plasma generating unit 100 is installed on the water tank (10) for receiving the cleaning water or the cleaning water supply conduit for supplying the cleaning water to implement the sterilization function of the water, and the water tank (10) or the cleaning water supply conduit It has a structure consisting of a plasma fixing part 200 for fixing the low-temperature plasma generating unit 100 in place on the structure 20 of the oral cavity cleaner in the watertight space formed separately.

The low temperature plasma generator 100 includes a first electrode 110, a spacer 120, a second electrode 130, a grill 140, a grill base 150, and an electrode rod 160. The first electrode 110 and the second electrode 130 are connected to the electrode rod 160 so that the first electrode 110 and the second electrode 130 are separated from each other by the spacer 120 so as to receive power or to be grounded. It is exposed to the cleaning liquid in a state covered by the grill 140 and the grill base 150.

Although the first electrode 110 and the second electrode 130 may have a plurality of through-holes through which the wash water can pass, it is preferable that the first electrode 110 and the second electrode 130 have a mesh structure made of a conductive material. Unalloyed pure titanium (ASTM-B265 greed2 / 7/11, ASME-SE greed4) with excellent acid resistance, heat resistance and mechanical tensile strength was drawn to a size of 16 mm 0.15mm) and above 100mesh (1.2mm) at intervals of less than the plain weave, mesh is produced by crossing.

Pure titanium has excellent acid resistance and corrosion resistance like platinum, and it is completely harmless to human body even if it is dissolved in the cleaning liquid due to precipitation of plating or metal surface by prolonged use, and there is no fear of secondary environmental pollution, and it is much cheaper than platinum wire. In addition, the electrical conductivity is about 304 stainless steel used as a general material of the electrode, but the corrosion resistance and oxidation resistance is much superior to that of stainless 304.

The first electrode 110 and the second electrode 130 are ions having a thickness of 1 to 5 (㎛) having the most excellent electrical conductivity, corrosion resistance, acid resistance, and heat resistance on the surface of the titanium mesh manufactured in the net form as described above. Plating is electrodeposited and finally completed, and when platinum plating is precipitated during long time use of the present invention to reduce the low-temperature plasma generation efficiency, it can be permanently regenerated by plating platinum again on the titanium mesh as described above.

Current flows from cathode to anode (Anode anode) and discharges underwater.Ionized impurities (organic matter) and anion (electrolyte) separated by electrolysis are attached to the positive electrode and negative electrode to form a core product. In addition, as the local electric field increasing region is formed between the first electrode 110 and the second electrode 130, oxygen-based active species cluster ions are generated in a bubble state.

Since the generated bubbles form an electric field from the negative electrode to the positive electrode while expanding, the gap between the first electrode 110 and the second electrode 130 should be optimized according to the intensity of the electric charge applied to the electrode and the size of the electrode. The ion cluster bubble generation efficiency can be maximized while minimizing the loss of current. The spacer 120 optimizes the separation distance between the first electrode 110 and the second electrode 130 as described above. It is made of an insulating material such as urethane so as to prevent a short circuit between the first electrode 110 and the second electrode 130 and is provided between the first electrode 110 and the second electrode 130 with a predetermined thickness.

The grill 140 and the grill base 150 accommodate the first electrode 110, the spacer 120, and the second electrode 130 therein and are mutually coupled by a method such as brazing welding or screwing. The low temperature plasma generator 100 has an integrated structure, and plasma to oxygen-based active species cluster ions generated by a power applied to the first electrode 110 and the second electrode 130. The washing water has a structure in which a plurality of through holes are formed to be easily mixed with the washing water.

In the first embodiment of the present invention, the grill 140 has a cap-shaped longitudinal section shape in which both left and right ends are bent downward, and the grill base 150 is formed on the inner side of the lower bent lower portion of the grill 140. As the upper catching jaw is formed in a corresponding position, the grill 140 is connected to the grill base 150 by the upper catching jaw formed in the grill base 150 at both left and right ends thereof. The movement of the can be coupled to each other in a state that is clearly connected to the correct position of the grill base 150.

The electrode rod 160 has a bolt shape penetrating the first electrode 110 and the second electrode 130, and supplies power or ground connection to the first electrode 110 or the second electrode 130. The grill is made of a conductive material, and connected to a power supply line or a grounding structure while being fixed using a nut member made of a conductive material such as brass or stainless steel, or the grill for fixing the first electrode 110 and the second electrode 130. It is connected to the power supply line or the ground structure in a state fixed to the 140 and the grill base 150.

If the electrode rod 160 is made of pure titanium, which is the same material as the first electrode 110 and the second electrode 130 in a bolt shape, and then manufactured by plating with platinum, the first electrode 110 and the second electrode Similar to (130), even if the surface is precipitated and dissolved in the process of long-term use can ensure human safety and environmental pollution prevention.

In the first embodiment of the present invention, the electrode rod 160 is formed of a first electrode rod 161 and a second electrode rod 162, and the first electrode rod 161 is formed on the through hole formed in the grill 140. The bolt head is positioned and installed so that the body part passes through the first electrode 110, the spacer 120, the second electrode 130, and the grill base 150, and the second electrode rod 162 is the first electrode. It is installed to be spaced apart from the electrode rod 161, the bolt head is positioned on the through hole formed in the first electrode 110 and the spacer member 120 so that the body portion penetrates the second electrode 130 and the grill base 150. Is installed.

The lower end of the bolt head is coupled to the first electrode rod 161 and the second electrode rod 162 by different positions as described above, so that the bolt head of the first electrode rod 161 is connected to the first electrode 110. The airtightly connected state, and the bolt head of the second electrode 162 is in a state of being hermetically connected with the second electrode 130, the first electrode 161 and the second electrode 162 By using the first electrode 110 and the second electrode 130 can be clearly applied power or ground connection.

The first electrode 110 and the second electrode 130 has a mesh shape through which the washing water can pass, and is formed to have a size such that only the body portions of the bolt-shaped first electrode rods 161 and the second electrode rods 162 can pass therethrough. The through-hole of the body portion, and the bolt head through-hole having an expanded diameter compared to the through-hole of the body portion so that the bolt head of the first electrode rod 161 and the second electrode rod 162 can pass through the structure is formed Accordingly, one of the first electrode 110 and the second electrode is connected to the first electrode rod 161 and the second electrode rod 162 so as to clearly perform a function as a power electrode and the other as a ground electrode. It is possible.

The low temperature plasma generating unit 100 according to the present invention having the configuration as described above is coupled to the water tank 10 of the oral cleaner, and supplies washing water to the injection nozzle 30 for externally spraying the washing water. In order not to violate the path where the conduit 40 is formed and extended, it is generally preferable that the center portion of the bottom of the water tank 10 to which one end of the conduit 40 is connected is installed in a ring shape.

The plasma fixing part 200 is connected to the ground nut 210 screwed to an end of the electrode rod 160 of the low temperature plasma generator, and to the nut 210 so as to seal the circumference of the electrode rod 160. The packing ring 220 is installed, and the nut 210 is connected to the electrode rod 160 side, and has a structure consisting of a main body 230 fixed on the structure 20 constituting the mouthwash.

As the electrode rod 160 has a bolt shape, the low temperature plasma generating unit 100 may be simply installed by the screw coupling method using the nut 210, as well as the low temperature plasma generating unit 100. Even when the first electrode 110 and the second electrode 130 are replaced, the electrode rod 160 is rotated by using a tool such as a screwdriver, thereby easily detaching and assembling from the nut 210, thereby completely regenerating without damage. Can be used.

The nut 210 has a shape in which the connection portion with the main body 230 is convexly downwardly protruded in a hemispherical shape, and the main body 230 has a shape in which the connection portion with the nut 210 is recessed downwardly in a hemispherical shape. At the same time as having a structure in which the center portion is formed through, the main body 230 is firmly supported by the lower end in place so that the nut 210 is not twisted or moved laterally.

The nut 210 is connected to a power supply line to supply power to any one of the first electrode rod 161 and the second electrode rod 162, and the first electrode rod connected to a ground structure. 161 and the second electrode rod 162 is composed of a grounding nut for grounding the other of the power is not connected, any one of the first electrode 110 and the second electrode 130 of the low temperature plasma generating unit As an electrode, the other makes it possible to perform a function as a ground electrode.

When the plasma operation switch provided on the outside of the oral cavity cleaner according to the present invention is turned on, in the low temperature plasma generating unit 100, the power supply part → the switching part → the pulse generating part → the connection part → the power supply part → the control part → the power supply part / the switching part → the signal The operation is performed in the order of the output unit, it is preferable to display the power supply state or the operating state so that the user can confirm from the outside by the LED lights or the LCD display during the operation of the switching unit and the signal output unit.

The power supply unit converts 110-220V AC power supplied from a power supply source into DC 3-47V DC power supply, and outputs the alternating voltage through a pulse circuit. The electrode rod 160 or the nut 210 corresponding to the connection terminal for transmitting the current to the first electrode 110 and the second electrode 130 is connected, and the switching unit is a power source of the power supply according to the control signal of the controller As a part which turns supply on / off, switching elements, such as a PNP type transistor, an NPN type transistor, and a FET (field effect transistor), can be used.

The control unit applies an ON control signal to the switching unit when the plasma operation switch is turned on, so that DC power is supplied from the power supply unit to the low temperature plasma generator through the connection unit, and when the set operation time passes, the control unit sends an OFF signal to the switching unit. The power supply is stopped and the switching unit is controlled so that the positive voltage and the negative voltage are alternately supplied at intervals of 1 second to 5 minutes or more so that the polarity of the connection terminal is changed every time the power is alternately supplied, and the signal output unit And control the operation LED.

As described above, the present invention is installed in a container containing a liquid such as waste water, such as a water tank or general water, and when a current is applied in water, a low temperature plasma is generated between the positive electrode and the negative electrode of the device by underwater discharge (WATER BREAKDOWN MECHANISM). Water molecule (H₂O) is decomposed into hydrogen and oxygen ions and diffuses into numerous micro-bubbles in the form of ion clusters. Oxygen molecules combine with other oxygen atoms to stabilize and are oxygen molecules (O₂) through bonding. Becomes

In this way, the hydrogen atom (H) is separated from the anion electron and becomes H + by the strong electrochemical energy by the low temperature plasma, and the oxygen molecule (O₂) receives the surrounding anion electrons and the oxygen anion and part of the ozone (O₃). In general, the electrochemical dissociation state is reduced within 2 to 5 hours in the standby state and within about 48 hours in the sealed state such as in the refrigerator, and the water has a weak alkalinity of about 7.4Ph.

The hydrogen cations (H +) and oxygen anions (O²-) generated as described above react with the water molecules (H₂O) around them to generate various oxygen-based active species ions such as hydroxyl groups and anions in the form of clusters. Is evaporated above the surface of the water, and the hydroxyl groups are attached to the bacteria to break down and remove them.

As described above, the hydroxyl group, which is very unstable due to its molecular nature, takes hydrogen ions (H) from the cell membranes of bacteria and is reduced back to water (H₂O) .Bacteria depleted of hydrogen (H) from the cell membranes are inactivated as the cell membranes are destroyed. It can be transformed into a harmless substance, and can treat algae such as mold and moss by reaction of ozone (O₃), one of the oxygen-based active species.

In addition, the microscopic bubbles in the water generated by the strong electric field between the cathode and the anode have the effect of electrically removing the microorganisms and other oil and inorganic substances in the water by forming a strong electric field between the bubbles, and by the low temperature plasma Oxygen-based active species ions, including the generated hydroxyl groups, are very unstable, so there is no fear of secondary contamination as they are reduced back to water within 2 to 5 hours after normal reaction with bacteria, toxins, and organic and inorganic substances in water.

In fixing the main body 230 on the structure 20 of the mouthwasher, hemispherical grooves or protrusions are formed on the structure 20 of the mouthwasher, and the grooves or protrusions of the structure 20 are formed. By forming a hemispherical protrusion or depression at a position corresponding to the above, the main body 230 can be firmly fixed to a designated position on the structure 20, and the protrusion or depression is formed by any pressure. Sliding along and deviations can also occur.

According to the first embodiment of the present invention, the plasma fixing part 200 is more stably connected to the old object 20 and the plasma fixing part 200 of the mouthwasher, and the motor 50 in the use process of the present invention. The auxiliary support part 300 which supports the main body 230 and the nut 210 to the plasma fixing part 200 to the electrode rod 160 side so as to maintain the connection state stably even after vibration generated by the driving of the lamp. It has a structure further provided with.

The auxiliary support part 300 is composed of a pressure bolt 310, the insertion hole 320, the elastic spring 330, the pressure bolt 310 is bolted to the body 230 or the nut 210 of the plasma fixing part Is installed on the structure 20 of the oral cavity so that the head is connected, the insertion hole 320 is the upper end is connected to the lower end of the bolt head of the pressure bolt 310 and the body portion of the pressure bolt 210 through the T It is installed between the structure 20 and the pressure bolt 310 of the oral cavity cleaner in the shape of a cylinder, and the elastic spring 330 elastically presses the insertion hole 320 to the bolt head side of the pressure bolt 310. It has a structure connected to the insertion hole 320 and the structure 20 of the mouthwash.

According to the oral cavity washing apparatus provided with the low temperature plasma generation apparatus which concerns on this invention, although the foreign material in an oral cavity can be effectively removed using the high pressure washing water, the low temperature plasma which generate | occur | produces in water by the operation of the said low temperature plasma generating part 100 By using a hydroxyl group having strong oxidizing and sterilizing power, it is possible to sterilize and disinfect the oral cavity, thereby effectively preventing gum disease caused by bacterial propagation.

In addition, since the washing water itself can be sterilized by a low-temperature plasma generator in a safe manner that is not harmful to the human body and the environment, the washing water, such as general tap water, is accommodated in the water tank 10 at no additional cost. Or, while being continuously supplied to the injection nozzle 30 directly through a water supply pipe (not shown) can be used hygienically and conveniently.

The present invention has been described with reference to preferred embodiments of the present invention, but the present invention is not limited to these embodiments, and the claims and detailed description of the present invention together with the embodiments in which the above embodiments are simply combined with existing known technologies. In the present invention, it can be seen that the technology that can be modified and used by those skilled in the art are naturally included in the technical scope of the present invention.

1-perspective view showing a first embodiment of an oral cavity washing apparatus having a low temperature plasma generating apparatus according to the present invention;

Figure 2-A partial exploded perspective view of Figure 1

3-exploded perspective view of the low temperature plasma generating unit

4-top view of FIG. 1

5-4 is a cross-sectional view taken along the line A-A

6-4 is a cross-sectional view taken along the line B-B

7-4 C-C cross-sectional view

8-4, cross-sectional view taken along the line D-D

<Description of Major Symbols Used in Drawings>

10: tank 20: structure

30: injection nozzle 40: conduit

50: motor 60: pump

100: low temperature plasma generating unit 110: first electrode

120: spacer 130: second electrode

140: grill 150: grill base

160: electrode 161: first electrode

162: second electrode 200: plasma fixing portion

210: nut 220: packing ring

230: main body 300: auxiliary support

310: pressure bolt 320: insertion hole

330: elastic spring

Claims (5)

In the mouthwashing machine for spraying the washing water at the specified water pressure to remove foreign matter between the teeth using the washing water, The first electrode 110 made of a conductive material and the spacer 120 having a predetermined thickness and having a predetermined thickness are installed on the water tank 10 accommodating the washing water or the washing water supply conduit for supplying the washing water. ), A second electrode 130 spaced apart from the first electrode 110 with the spacer 120 interposed therebetween, the first electrode 110, the spacer 120, and the second electrode ( 130 is accommodated therein and electrically coupled to the grill 140 and the grill base 150 and the first electrode 110 and the second electrode 130 formed with a plurality of through holes through which the washing water passes. A plasma generator 100 including a bolt-shaped first electrode rod 161 and a second electrode rod 162 connected to each other; And It is installed on the watertight space separately formed from the water tank 10 or the washing water supply conduit, and is screwed to the ends of the first electrode rod 161 and the second electrode rod 162 of the plasma generator, and the plasma generator 100 ) And a packing ring inserted between the nut 210 to secure the circumference of the electrode rod 160 to the nut 210 fixing the structure on the structure 20 of the mouthwasher. A plasma fixing part (200) having a main body (230) connected to and supporting the nut (210) toward the electrode rod (160) and fixedly installed on the structure (20) of the mouthwasher; Mouthwash provided with a plasma generating device comprising a. The method of claim 1, A pressure bolt 310 installed on the structure 20 of the mouthwasher so that the bolt head is connected to the body 230 or the nut 210 or the body 230 and the nut 210 of the plasma fixing part; T-shaped cylindrical insertion hole 320 is installed between the structure 20 and the pressure bolt 310 of the oral cleaner, and the insertion hole 320 is installed to elastically press the bolt head side of the pressure bolt 310 Auxiliary support 300 is provided with an elastic spring 330; Mouthwash provided with a plasma generating device characterized in that it further comprises. The method of claim 1, wherein the plasma generating unit 100, In the coupling on the water tank 10, a ring having a central portion penetrated so that a conduit 40 for supplying the water to the spray nozzle 30 for externally spraying the water can be installed at the center of the bottom of the water tank 10. Mouthwash provided with a plasma generator, characterized in that having a shape. The method of claim 1, wherein the first electrode 110, the second electrode 130 of the plasma generating unit, A through-hole having a mesh shape through which the washing water can pass, the body through-holes having a size that allows only the body parts of the first electrode rod 161 and the second electrode rod 162 to be bolt-shaped, and the first electrode rod 161 and the first rod. Oral cleaner with a plasma generating device characterized in that the bolt head through-hole having an expanded diameter compared to the body through-hole so that the bolt head of the two electrode rods (162) are spaced apart. The method of claim 1, wherein the nut 210 of the plasma fixing part, A power supply nut connected to a power supply line to supply power to any one of the first electrode rod 161 and the second electrode rod 162, and connected to a ground structure to the first electrode rod 161 and the second electrode rod ( 162) a mouthwash comprising a plasma generating device, characterized in that it comprises a grounding nut for grounding the other of which is not connected to the power.

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