KR20000056754A - filter device of electronic oven for both range hood - Google Patents

Abstract

PURPOSE: A filter apparatus for microwave oven having combined use as a range hood is provided to accomplish simplified structure and reduced cost while utilizing only a photocatalytic plasma filter. CONSTITUTION: In a microwave oven having combined use as a range hood comprising a flow channel(4) between an outer cabinet(1) and an inner cabinet(2), an air inlet(9) arranged at a lower surface of the outer cabinet(1) so as to allow an air to flow into the channel(4), and an air outlet arranged at a front upper surface of the cabinet(1) so as to discharge the air, a filter apparatus comprising a photocatalytic plasma filter(15) disposed in an appropriate position within the channel(4). When an air containing smell content and oil content is flowed into the channel(4) through the air inlet(9), the photocatalytic plasma filter(15) is applied with a high voltage and generates a plasma. Subsequently, the filter(15) shows an oxidation reaction utilizing thus-generated plasma as an energy source, thereby decomposing the smell content and oil content contained in the air.

Description

Filter device of microwave oven for both range hoods {filter device of electronic oven for both range hood}

The present invention relates to a microwave oven for a range hood, and more particularly, to a filter device for a microwave oven for microwave oven to filter odor and oil (oil component) generated during cooking while circulating indoor air. It is about.

In general, the kitchen system of the home is composed of a lower shelf having a plurality of storage boxes, and an upper shelf having a plurality of storage boxes fixed in a spaced apart state directly above the lower shelf, the lower shelf by the heat of gas The gas oven range (which may be a general gas range) for cooking food is integrated, and the upper shelf is integrally installed with a range hood for filtering odor components and oils generated by cooking food by the gas oven range. This is normal.

In addition, among the various kitchen appliances used in the kitchen, a microwave oven for cooking food by high-frequency heating is used on a separate shelf or on a rice bowl.

However, in such a kitchen system, since the microwave oven is installed and used in a separate place, the space occupancy rate is high and it is not economical in various aspects. In order to compensate for this disadvantage, a microwave oven with a range hood has been developed and marketed in recent years. It is true.

The above-mentioned range hood microwave oven is installed in place of the range hood in the existing range hood installation place of the upper shelf in the kitchen system, while using this range hood microwave oven in place of the existing range hood while using less installation space In addition to the microwave function as well as the range hood function is very economical in many aspects (see Figure 1).

So here's a look at the microwave oven for the range hood:

A flow path 4 is formed between the outer cabinet 1 and the inner cabinet 2 having the storage space 3, and a door for opening and closing the storage space 3 on one side of the front side of the outer cabinet 1. (5) is rotatably hinged, the front side of the outer cabinet (1) is provided with a control unit (6) having a plurality of mode selection buttons, the outer cabinet (1) and the inner cabinet (2) The fan 8 is installed at the upper side of the flow path 4 so as to generate suction while rotating under the driving force of the motor 7, and suction force by the fan 8 is provided at both sides in front of the lower surface of the outer cabinet 1. Air generation holes 9 are formed so that the outside air is sucked into the flow path 4 at the time of occurrence, and the air is discharged to discharge the air sucked into the flow path 4 back to the outside in the upper part of the outer cabinet 1. The ball 10 is formed, the light generated in the lower rear center of the flow path (4) as needed A pair of lamps 11 are installed, and a viewing window 12 is disposed between the air suction holes 9 among the lower surfaces of the outer cabinet 1 so that the light generated by the lamps 11 is projected directly downward. In the flow path 4, a filter device is provided to filter odor components and oil (oil components), etc. in the air sucked through the air suction hole 9 in accordance with the rotation of the fan (8).

Therefore, if any particular button is selected from the mode selection buttons of the control unit 6 provided on the bottom side of the outer cabinet 1, the operation is performed in the mode corresponding to the selected button.

That is, the user opens the door 5 rotatably installed on one side of the front side of the outer cabinet 1 to store the food to be cooked into the storage space 3 of the inner cabinet 2, and then closes the door 5 again. When the cooking button is selected, the magnetron (not shown) generates a high frequency, and the cooked food is automatically cooked as the generated high frequency is introduced into the storage space 3.

In this process, when the user wants to cook using the gas oven range, when the gas oven range is dark, the user can select a light button among the mode selection buttons. In this case, between the outer cabinet 1 and the inner cabinet 2 Since the lamp 11 installed at the lower portion of the formed flow path 4 is turned on, light is generated, and the generated light is part of the gas oven range through the viewing window 12 installed at the lower surface of the outer cabinet 1. Since it is viewed directly below phosphorus, the user can cook in a bright state using the gas oven range.

In addition, when the user wants to purify the indoor air by filtering odor components and oils generated during cooking of the gas oven range, the user may select the air purifying button among the mode selection buttons. In this case, the external cabinet 1 and the internal cabinet Since the fan 8 installed in the upper portion of the flow path 3 formed between the two rotates in response to the driving force of the motor 7, suction force is generated, and due to the generated suction force, the air in the room is moved to the outer cabinet. The air is sucked into the flow passage 4 through the air suction holes 9 formed at both sides of the lower surface of the air passage 1, and then the air discharge formed in the upper part of the front surface of the outer cabinet 1 through the filter device provided in the flow passage. Through the ball 10 is discharged back to the room.

On the other hand, when the air in the room is sucked into the flow path (4) through the air suction hole (9), and then passes through the filter device, various odor components and oils contained in the air are filtered and eventually the air discharge hole It is understood that the air discharged back to the room through (9) is cleanly purified.

As described above, when the user wants to cook by using a gas oven range, the function of illuminating the gas oven range part and the smell component generated when the user cooks the gas oven range. The function of purifying indoor air by filtering and oil may be performed at the same time while the main function of the microwave oven is operated, but each function may be performed independently.

Hereinafter, a description will be given of a conventional filter device for filtering and purifying various odor components and oils in the air among components of a microwave oven for a range hood.

As shown in FIGS. 2 to 3, a lower filter 13 made of pure aluminum is installed on the air suction hole 9 side of the flow path 4 formed between the outer cabinet 1 and the inner cabinet 2 and the air discharge hole. On the 10 side, the upper filter 14 made of activated carbon is installed.

When such a conventional filter device is applied to a range hood combined microwave oven, a process of filtering and purifying various odor components and oils contained in the indoor air is described as follows.

As the fan 8 installed in the flow path 4 between the outer cabinet 1 and the inner cabinet 2 rotates in response to the driving force of the motor 7, air in the room generates the suction force. In the process of being sucked into the flow path (4) through the air suction hole (9) formed in the lower surface of the passing through the lower filter 13 made of pure aluminum only, where most of the odor component and oil contained in the air The filter is primarily filtered by the lower filter.

Subsequently, the air passing through the lower filter 13 passes through the upper filter 14 made of activated carbon at some point in the process of being guided to the flow path 4, at which time the odor contained in the air and not filtered by the lower filter 13. Since the component is not only deodorized by the active ingredient of the upper filter 14 but also fine oil is also filtered out of the upper filter, it is discharged into the room through the air discharge hole 10 in the state where the air sucked into the flow passage 4 is purified. Is understandable.

However, such a filter device has a variety of problems as follows.

First, since the lower filter made of aluminum and the upper filter made of activated carbon are used at the same time, it is not economically advantageous as the material cost increases due to structural complexity.

Second, there is a limit to the deodorizing power of the odor gas by the active ingredient of the upper filter as well as the fine oil is not decomposed in the filtered state of the upper filter remaining as it is very short life of the upper filter is often replaced the upper filter There is inconvenience in maintenance, as well as the cost is increased.

Third, since the lower filter made of aluminum and the upper filter made of activated carbon do not have a function to sterilize harmful bacteria in the air, when the user is infected with the bacteria as the inside of the flow path of the device is provided as a habitat for harmful bacteria Is generated.

Fourthly, when the upper filter is not replaced in a timely manner, since the odor component and the oil are continuously contained in the discharged air, the purification efficiency of the air is reduced.

The present invention has been made to solve the above-described problems, the object of which is to generate a plasma by applying a high voltage and to use the photocatalyst plasma filter to generate an oxidation reaction using the plasma as an energy source contained in the air By decomposing odor component and oil, it is structurally simple, can be used semi-permanently, and is very advantageous for maintenance.

To this end, in the present invention, a flow path is formed between the outer cabinet and the inner cabinet, and an air suction hole is formed in the lower surface of the outer cabinet so that air is sucked into the flow path, and the air sucked into the flow path is discharged again in the upper part of the front. In a microwave oven with a range hood having a discharge hole, a photocatalyst plasma filter is installed in place in the flow path so that the photocatalyst plasma filter receives a high voltage when air containing an odor component and oil is sucked into the flow path through an air suction hole. The present invention provides a filter device for a microwave oven with a range hood, which generates plasma and causes an oxidation reaction using the plasma as an energy source to decompose odor components and oil in the air.

1 is a schematic diagram showing an installation state of a microwave oven with a range hood

2 is a longitudinal sectional view of a microwave oven with a range hood having a conventional filter device;

3 is a cross-sectional view taken along the line II of FIG. 2.

Figure 4 is a longitudinal sectional view of the microwave oven with a range hood having a filter device of the present invention

Figure 5 is a front view showing the filter device of the present invention

Explanation of symbols for main parts of the drawings

1. Outer cabinet 2. Inner cabinet

4. Euro 9. Air suction hole

10. Air vent 15. Photocatalyst plasma filter

15a. Discharge counter electrode 15b. Discharge electrode

15c. Aluminum mesh

Hereinafter, the present invention will be described in more detail with reference to the attached FIGS. 4 to 5 as an embodiment.

Attached 4 is a longitudinal sectional view of the microwave oven with a range hood having a filter device of the present invention, Figure 5 is a front view showing the filter device of the present invention, the present invention is a photocatalyst plasma filter 15, the outer cabinet 1 and the inner cabinet The photocatalyst plasma filter 15 receives the high voltage of the magnetron when the air is sucked into the flow path 4 through the air suction hole by being installed at the air suction hole 9 side in the flow path 4 formed between the two. As the plasma is generated, the odor component in the air is decomposed, and the oil in the air is decomposed by the oxidation reaction using the plasma as an energy source.

The photocatalyst plasma filter 15 is composed of a plurality of discharge counter electrodes 15a serving as a ground and spaced apart by a predetermined interval, and a discharge electrode 15b applied between the discharge counter electrodes to receive a high voltage. A discharge unit for generating a plasma between the discharge counter electrode 15a and the discharge electrode 15b, and a rear portion of the discharge unit in a state in which titanium oxide (TiO ₂ ) is coated on an aluminum mesh (15c). And a photocatalyst portion which causes an oxidation reaction by plasma generated in the discharge portion.

When the filter device of the present invention configured as described above is applied to a range hood combined microwave oven, a process of filtering and purifying various odor components and oils contained in the indoor air is as follows.

As the fan 8 installed in the flow path 4 between the outer cabinet 1 and the inner cabinet 2 rotates in response to the driving force of the motor 7, air in the room generates the suction force. It is sucked into the flow path 4 through the air suction hole 9 formed in the lower surface of the, wherein a high voltage of 5-6 kV is applied to the discharge part constituting the photocatalyst plasma filter 15 by the magnetron of the microwave oven. As the plasma is generated in the discharge portion, the odor component in the air sucked into the flow path 4 is decomposed by the plasma and positioned behind the discharge portion to form the photocatalytic plasma filter 15. As the oxidation reaction is caused by the plasma generated in the discharge portion, oil in the air is decomposed, and thus, the air sucked into the flow path 4 is odord while passing through the photocatalyst plasma filter 15. The bus and the oil can be removed understand.

Hereinafter, a series of processes in which the odor gas and the oil in the air are decomposed and removed as the discharge portion and the photocatalyst portion constituting the photocatalyst plasma filter 15 continuously pass will be described in detail.

When a DC high voltage of 5 to 6 kV is applied to each discharge electrode 15b of the discharge portion in the magnetron, discharge occurs between each discharge electrode 15b constituting the discharge portion and the discharge counter electrode 15a to form an unbalanced electric field. As plasma is generated, odor components in the air are mostly decomposed by the plasma and deodorized.

On the other hand, it is understood that the odor molecules and oil in the air are charged to the positive electrode while the discharge part is charged while being discharged.

The air passing through the discharge portion continues to pass through the photocatalyst portion. The odor component (the remaining odor component not decomposed in the discharge portion) and the oil in the air are already charged to the positive pole in the discharge portion as described above. In view of the above, the photocatalyst is adsorbed to the photocatalyst, and in this process, titanium oxide, which is a coating material of the aluminum mesh 15c constituting the photocatalyst, is oxidized using plasma generated at the discharge as an energy source. As the odor component and oil are also decomposed, only clean air is discharged into the room through the air discharge hole 10 as the odor component and oil in the air are completely removed.

In addition, if the harmful bacteria are contained in the air when the odor component and oil in the air sucked into the flow path 4 in the above action, the bacteria are sterilized during the oxidation reaction of titanium oxide, a photocatalytic material, and thus also have a sterilization function. Together.

In the present invention described above, the photocatalyst plasma filter 15 does not need to be installed in any particular place of the flow path 4, but preferably, it is preferably installed at the air suction hole 9 side, which is completely absorbed by the odor component and oil. This is to ensure that only the clean air after being decomposed is guided to the flow path 4 so that the surfaces of the outer cabinet 1 and the inner cabinet 2 that are inside the flow path are not soiled by oil.

Therefore, the present invention has various effects as follows.

First, since only a photocatalyst plasma filter which generates a plasma while being discharged by applying a high voltage and uses the plasma as an energy source is used, the structure is simplified and the material cost is very economical.

Second, since the photocatalyst plasma filter decomposes and removes odor components and oils in the air, the filter can be used semi-permanently as the odor components and oils do not remain in the filter, so there is no inconvenience in maintenance. There is almost no cost.

Third, while the titanium oxide of the photocatalyst constituting the photocatalyst plasma filter is oxidized, harmful bacteria in the air are sterilized so that the user is not infected with bacteria.

Fourth, since the odor component and oil are decomposed and removed, the air is sucked into the flow path and discharged regardless of the period of use of the device, so that the odor component and oil are almost not included, thereby improving the air purification efficiency.

Claims (1)

A range hood is formed between the outer cabinet and the inner cabinet, and an air suction hole is formed in the lower surface of the outer cabinet so that air is sucked into the flow path, and an air discharge hole is formed in the upper part so that the air sucked into the flow path is discharged again. In the microwave oven, When the photocatalyst plasma filter is installed in place in the flow path, when the air containing the odor component and the oil is sucked into the flow path through the air suction hole, the photocatalyst plasma filter is applied with a high voltage to generate a plasma and the plasma is an energy source. Microwave filter apparatus for a range hood combined, characterized in that the odor component and oil in the air to be decomposed in accordance with the oxidation reaction.