KR20040110559A - Disinfector for tableware and the method using plasma chip - Google Patents

Abstract

PURPOSE: A tableware sterilizer using a plasma chip and a tableware sterilizing method are provided to improve the sterilization effect by sterilizing the tablewares with the ions generated from a plasma chip and using an airflow generated by a fan. CONSTITUTION: A tableware sterilizer using a plasma chip comprises a plasma chip(10) generating plasma ions by the atmospheric discharge and having a fan generating an airflow for dispersing the plasma ions, an ultraviolet ray lamp(30) radiating ultraviolet rays having sterilization function, a sterilization rack(40) on which tablewares are placed, a nano silver filter(50) sterilizing the air in a sterilizer, a carbon filter(60) generating fresh oxygen by decomposing ozone, a blower fan guiding the airflow to the nano silver filter and the carbon filter, and a heater(80) drying the tablewares and finally decomposing ozone.

Description

Disinfector for tableware and the method using plasma chip}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dish sterilizer and a method using a plasma chip, and in particular, to generate plasma by atmospheric pressure discharge using surface electrodes and to disinfect the dish according to the flow of air by a fan. By doing so, the present invention relates to a dish sterilizer and a dish sterilizing method using a plasma chip having improved disinfection function.

In general, a dish sterilizer is a device for sterilizing various germs and the like remaining on the surface of a dish in a sterilizer to sanitarily store the dish. Conventional ultraviolet dishwasher using the sterilization ability of the ultraviolet (ultraviolet rays), the ultraviolet rays generated from the ultraviolet lamp provided in the dishwasher to disinfect the dishes.

However, the conventional UV dish sterilizer is a place where ultraviolet rays are disinfected and sterilized, there is a problem that does not sterilize and sterilize where ultraviolet rays do not reach.

Accordingly, an object of the present invention is to solve the above problems, by generating ions for disinfecting the dish from the plasma chip, and disinfects the dish according to the flow of air by the fan, to the place where the ultraviolet rays do not reach The present invention provides a dish sterilizer and a dish sterilization method using a plasma chip that can improve the disinfection effect.

1 is a block diagram of a dish sterilizer using a plasma chip according to the present invention

2 is a cross-sectional view showing the structure of a dish sterilizer using a plasma chip according to the present invention

3 is a conceptual diagram showing the structure of the plasma chip of the present invention

4A to 4D are conceptual views illustrating a discharge state of the plasma unit cell of the plasma chip according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: plasma chip 20: fan

30: UV lamp 40: Disinfection shelf

50: nano silver filter 60: carbon filter

70: blower fan 80: heater

90: switch section 100: display section

200: tableware 300: control unit

Dishwasher according to the present invention for achieving the above object is installed on the top of the dish sterilizer, plasma chips for generating a plasma by atmospheric pressure discharge using a surface electrode, is installed on the top of the dish sterilizer, An ultraviolet lamp for generating ultraviolet rays in the interior, a disinfection shelf mounted inside the dish sterilizer, mounted on both sides of the dish sterilizer, mounted on both sides of the dish sterilizer, and disinfected by the plasma and the ultraviolet rays. Nano silver filter, which is installed inside both sides of the dishwasher, the carbon filter to absorb and decompose ozone, installed inside both sides of the dishwasher, blower fan to induce the flow of air in the dishwasher and the dishwasher Installed inside both sides, drying the dishes and It characterized in that it comprises a heater for decomposing ozone not decomposed in the filter.

In addition, the plasma chip may be characterized by having a fan for dispersing the plasma generated by the atmospheric pressure discharge into the dish sterilizer. The plasma chip may include a plasma cell having a three-dimensional structure, and at least one plasma cell may serve as an electrode to generate a discharge.

In addition, the element of the carbon filter is characterized in that the carbon (C) and the material of the disinfection shelf is characterized in that the stainless steel coated with titanium oxide (TiO ₂ ).

The dishwasher further includes at least one of a power button for applying power, a start cancel button for instructing to start or cancel an operation, a time adjustment button for adjusting a time, and a mode button for adjusting an operation mode. The dishwasher may further include a display configured to display at least one of an operation state, a remaining disinfection time, and an operation mode state of the dishwasher.

On the other hand, the present invention is a method for disinfecting a dish sterilizer, characterized in that configured to include the step of generating ultraviolet rays to disinfect the dishes and generating and disinfecting the place where the ultraviolet rays are not.

The plasma may be generated by an atmospheric pressure discharge in a plasma chip, and the dish disinfection method may further include sterilizing the air inside the dish sterilizer using a nanosilver filter.

The dish disinfection method may further include absorbing and decomposing ozone generated by the plasma using a carbon filter. The dish disinfection method may include: a fan for blowing air flow inside the dish sterilizer; It may be characterized in that it further comprises a step generated by.

The dish disinfection method may further include drying the dish by a heater and decomposing ozone which is not decomposed in the carbon filter by the heater.

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

1 is a block diagram illustrating a dish sterilizer using a plasma chip according to the present invention, and FIG. 2 is a configuration cross-sectional view thereof.

As shown in FIG. 1 and FIG. 2, the dish sterilizer using the plasma chip includes a plasma chip 10 having a fan 20, an ultraviolet lamp 30, a disinfection shelf 40, and nano silver. It comprises a filter 50, a carbon filter 60, a blowing fan 70, a heater 80.

The plasma chip 10 generates plasma ions by atmospheric pressure discharge using surface electrodes. Generally, corona discharge is used as a method of generating plasma ions by plasma discharge. However, when plasma ions are generated by corona discharge, power consumption is high because a high voltage must be supplied to the dishwasher to generate discharge. Large, there is a problem that a large amount of ozone is generated by the corona discharge.

Therefore, the plasma chip 10 of the present invention generates plasma ions by atmospheric pressure discharge using surface electrodes. At this time, the generated plasma ions function to sterilize (disinfect) the tableware 200.

The fan 20 is installed below the plasma chip 10 and serves to disperse plasma ions generated from the plasma chip 10 in all directions. The plasma ions move along the flow of air by the fan 20, thereby disinfecting every corner of the tableware 200 that is not exposed to ultraviolet rays.

The ultraviolet lamp 30 is for disinfecting the tableware 200 using its own sterilizing ability of ultraviolet rays, and disinfects the tableware by radiating a predetermined amount of ultraviolet rays from the ultraviolet lamp 30 and exposing it to the tableware 200.

The dishwasher 200 is mounted on the disinfecting shelf 40. The disinfection effect is caused by the photocatalytic reaction with ultraviolet rays generated from the ultraviolet lamp 30 by using stainless steel coated on titanium oxide (TiO ₂₎ . Can increase.

The nano silver filter 50 is mounted on both sides of the dish sterilizer and serves to sterilize the air inside the dish sterilizer by the flow of air. A carbon filter 60 is installed outside the nanosilver filter 50, and the carbon filter 60 absorbs and decomposes ozone generated in the plasma chip 10 to generate fresh oxygen.

The blowing fan 70 guides the flow of air in the dish sterilizer to the nanosilver filter 50 and the carbon filter 60 to reduce ozone concentration in a short time, thereby minimizing ozone damage to the user. .

The heater 80 may dry the dishes and finally decompose ozone which is not decomposed in the carbon filter 60.

On the other hand, the present invention is configured by adding a switch unit 90 for the user to instruct the operation of the dishwasher in detail and the display unit 100 for displaying the operation state of the dishwasher.

The switch unit 90 provides a function for the user to select a series of operations such as starting and canceling the operation of the dishwasher, a power button 92 for turning on the operation power, and a time adjustment button for time adjustment ( 94), a mode button 96 for adjusting the operation mode, a start cancel button 98, etc. for starting and canceling the operation of the dishwasher. Therefore, the user can select the appropriate button to use the dishwasher as needed.

The switch unit 90 is connected to the control unit 300, the control unit 300 controls the operation of the dishwasher according to the selection of the button of the switch unit 90.

In addition, the display unit 100 displays the operation state selected by the switch unit 90, and is positioned adjacent to the switch unit 90.

3 is a conceptual diagram showing the structure of the plasma chip 10 included in the present invention.

Referring to FIG. 3, the plasma chip 10 includes a plasma cell having a three-dimensional shelf structure. The plasma chip 10 may be formed of a plasma cell having a three-dimensional solid structure to maximize the contact area with air. In this case, the three-dimensional structure of the plasma chip 10 is not limited to the shelf structure and may be modified into various three-dimensional structures as necessary. Can be designed.

The plasma cells constituting the plasma chip 10 may perform discharges by themselves as all electrodes, or may cause atmospheric pressure discharge by a pair of unit units facing each other. Hereinafter, a process of causing the plasma cell 12 to discharge will be described in detail.

4A to 4B are conceptual views illustrating a discharge state of the plasma unit cell of the plasma chip 10 according to the present invention.

4A and 4B show the case where the plasma cell 12 discharges through two separate electrodes, in which a conductive electrode 18 pattern is inserted over the dielectric material.

Referring to the plasma chip 10 having the three-dimensional shelf structure illustrated in FIG. 3 as an example, in FIG. 3, a pair of plasma unit units 12 and 16 of each layer may be applied as an electrode. In addition, the electrode may be configured by including a pair of electrodes 12 and 16 and a layer 14 coated with a functional material having disinfection ability.

FIG. 4a shows the conductive electrode 18 in needle shape, and FIG. 4b shows the conductive electrode 18 in an arrow-shaped pattern. By maximizing the potential difference between the electrodes, the emission intensity of the anion can be increased as well as power consumption. Can be reduced.

4C and 4D show the case where the plasma cell is an integrated electrode composed of the conductive electrode 18 and the dielectric 19, wherein the conductive electrode 18 is inserted into the dielectric 19 or the dielectric 19 PbO, zinc oxide (ZnO), boron oxide (B ₂ O _3), or silicon oxide (SiO ₂₎ may be disposed on both surfaces of the dielectric layer 19 to prevent durability and oxidation of the conductive electrode 18. It is subjected to a galling treatment with a material within several micrometers (μm) in which titanium oxide (TiO ₂₎ , which is a photocatalyst material, or tourmaline powder, which is an anion generator, is mixed with an oxide to be included.

In this case, the conductive electrode 18 may be made of any one of platinum (Pt), tungsten (W), copper (Cu), aluminum (Al), stainless steel, and activated carbon having an excellent specific surface area. The dielectric 19 is made of an oxide-based ceramic material or Tefron including magnesium oxide (MgO), aluminum oxide (Al ₂ O _3), titanium oxide ₍ TiO _2), or silicon oxide (SiO ₂₎ . ) And PEEK (Poly Ether Ether Ketone).

Hereinafter, the operation of the dish sterilizer of the present invention configured as described above will be described in detail.

When power is applied to the dishwasher and a disinfection operation is started, predetermined ultraviolet rays generated from the ultraviolet lamp 30 sterilize the tableware 200 located on the disinfection shelf 40 with its own sterilization effect. In addition, the plasma chip 10 located above the dish sterilizer generates ions that disinfect by atmospheric pressure discharge, and the ions that disinfect move in the dish sterilizer along the flow of air formed by the fan 20. Sterilize 200.

At this time, the nano silver filter 50 sterilizes the air inside the sterilizer using its own sterilization effect, and the blowing fan 70 induces the flow of air in the dish sterilizer to reduce the ozone concentration in the dish sterilizer. On the other hand, the heater 80 decomposes bowl drying and ozone which is not decomposed.

As described above, according to the dish sterilizer and dish sterilization method using the plasma chip according to the present invention, a plasma chip which generates plasma by atmospheric pressure discharge using a surface electrode, a carbon filter which reduces ozone concentration, a blowing fan, and a heater By including the effect that can improve the disinfection effect to the place where the ultraviolet rays do not reach.

Claims (13)

In the dishwasher, A plasma chip installed on an upper portion of the dish sterilizer and generating plasma by atmospheric pressure discharge using a surface electrode; An ultraviolet lamp installed at an upper portion of the dish sterilizer and generating ultraviolet rays into the dish sterilizer; A disinfection shelf installed inside the dish sterilizer and mounted with dishes for disinfection by the plasma and the ultraviolet light; Nano silver filters installed inside both sides of the dish sterilizer and sterilizing air in the dish sterilizer; A carbon filter installed inside both sides of the dishwasher and absorbing and decomposing ozone; A blowing fan installed inside both sides of the dishwasher and inducing flow of air inside the dishwasher; And And a heater installed inside both sides of the dish sterilizer, the heater drying the dishes and decomposing ozone undecomposed by the carbon filter. The method of claim 1, wherein the plasma chip And a fan for dispersing the plasma generated by the atmospheric pressure discharge into the dish sterilizer. The method of claim 1 or 2, wherein the plasma chip And a plasma cell having a three-dimensional structure, wherein at least one of the plasma cells acts as an electrode to cause discharge. The method according to claim 1 or 2, Member of the carbon filter is a dish sterilizer using a plasma chip, characterized in that the carbon (C). The method according to claim 1 or 2, The material of the disinfection shelf is a dish sterilizer using a plasma chip, characterized in that the stainless steel coated with titanium oxide (TiO ₂ ). The dishwasher of claim 1 or 2, wherein A plasma chip further comprising at least one of a power button for applying power, a start cancel button for instructing to start or cancel an operation, a time adjustment button for adjusting a time, and a mode button for adjusting an operation mode Dishwasher. The dishwasher of claim 1 or 2, wherein And a display unit for displaying at least one of an operation state, a remaining disinfection time, and an operation mode state of the dishwasher. In the dishwashing method of the dishwasher, Generating ultraviolet rays to sterilize the dishes; And Disinfecting the dish using a plasma chip, characterized in that it comprises a step of generating a plasma to disinfect the ultraviolet rays. The method of claim 8, The plasma is a dish disinfection method using a plasma chip, characterized in that generated by the atmospheric pressure discharge in the plasma chip. The method of claim 9, wherein the dish sterilization method Disinfecting the internal air of the dishwasher using a nano-silver filter further comprises a dish disinfection method using a plasma chip, characterized in that configured. The method of claim 10, wherein the dish sterilization method And dissolving and decomposing ozone generated by the plasma using a carbon filter. According to claim 10 or 11, The dish disinfection method, Disinfecting the dishwasher using a plasma chip, characterized in that further comprising the step of generating the internal air flow of the dishwasher by the blowing fan. The method of claim 12, wherein the dish sterilization method, Drying the tableware by a heater; And Disintegrating the ozone undecomposed in the carbon filter by the heater further comprises a dish disinfection method using a plasma chip, characterized in that configured.