KR20150014817A

KR20150014817A - Kitchen facilities having a deodorizing sterilizer

Info

Publication number: KR20150014817A
Application number: KR1020130090514A
Authority: KR
Inventors: 조상희; 서대웅; 손영환; 이성민; 이재선; 박정열
Original assignee: 서울바이오시스 주식회사
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2015-02-09

Abstract

The present invention relates to a kitchen utensil including a deodorizing and sterilizing device capable of removing an odor and harmful gases. The kitchen utensil including the deodorizing and sterilizing device according to the embodiment of the present invention includes a case which includes a cooking space and forms an outer appearance, and a duct part which includes an inhalation part which is formed on one side of the cooking space, a deodorizing and sterilizing part including a UV LED source, and an inhalation part. The duct part further includes an air residence part including a plurality of partitions and a first filter part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen appliance having a deodorizing sterilizer,

Disclosure of the Invention The present disclosure relates to a kitchen appliance, and more particularly, to a kitchen appliance having a deodorizing and sterilizing device for preventing a food odor from remaining in a cooking chamber when cooking or storing food.

A wide variety of odors and noxious gases can arise from food during cooking or storage of foodstuffs due to the operation of kitchen appliances such as microwave ovens, ovens, hoods, etc., which are used in kitchens of homes or restaurants. Especially, among the kitchen appliances, microwave oven is a device that uses microwaves to quickly heat food by vibrating water molecules of food.

During the cooking process using the microwave oven, air containing steam and odor generated from the food is filled in the cooking chamber and discharged to the outside through an exhaust pipe connected to the cooking chamber. If the air containing steam or odor generated from food is discharged to the outside, the quality of the kitchen and the indoor air may be deteriorated and it may cause discomfort. Among these odorous substances, volatile organic compounds (VOCs) containing hydrocarbon compounds are known to be harmful substances that can cause damage to the human body through skin contact or breathing inhalation. In order to solve the problem caused by such harmful substances, some microwave ovens have been deodorized by attaching a catalyst, a filter or a fragrance to the exhaust pipe. However, there is a limit in that the adsorption capacity is limited and the replacement cycle is short. For example, since the air exhausted from the cooking chamber is at a high temperature, a method of adsorbing harmful substances to the filter may deteriorate the adsorption ability due to the high temperature. In addition to the generation of volatile organic compounds (VOCs), when food is cooked using a microwave oven operation, bacteria may occur depending on the sanitary condition inside the cooking chamber.

An embodiment of the present disclosure provides a kitchen appliance having a deodorizing and sterilizing device capable of removing odorous substances and noxious gases generated during operation of a kitchen appliance.

And to provide a kitchen appliance equipped with a deodorizing and sterilizing device capable of removing such odor substances and volatile organic compounds (VOCs) to improve air quality in the kitchen and the room.

A kitchen appliance provided with a deodorizing and sterilizing device according to an embodiment of the present disclosure includes a case including a cooking chamber and constituting an outer appearance; And a duct unit including a deodorizing and sterilizing unit including an intake unit, a UV LED light source unit, and an exhaust unit on one side of the cooking chamber.

In the present disclosure, the duct unit may include an air reservoir including a plurality of partitions provided on one side surface of the intake unit; And a primary filter unit for adsorbing odorous or harmful substances that have passed through the air retaining unit.

The partitions are staggered on both side walls of the air reservoir.

The primary filter portion is formed of a particulate, bead or fiber material.

The deodorizing and sterilizing unit including the UV LED light source includes a secondary filter including a photocatalyst material; And a UV LED element having a light emitting surface for emitting a UV light source toward the secondary filter portion.

The UV light source may have a wavelength range of 200 nm to 400 nm.

The first UV LED element and the second UV LED element having different wavelength ranges of the UV LED light source portion may be arranged in a row.

The first UV LED element illuminates a UV light source in a wavelength range of 300 nm to 400 nm and the second UV LED element illuminates a UV light source in a wavelength range of 300 nm or less.

The exhaust unit is disposed to face the outside of the case, and the deodorizing and sterilizing unit including the intake unit, the UV LED light source unit, and the exhaust unit are arranged in the horizontal direction.

The exhaust unit may be arranged in the direction of the cooking chamber in the same manner as the intake unit, and may have a reverse diverter shape in which the deodorizing and sterilizing unit is disposed between the intake unit and the exhaust unit.

According to the present disclosure, it is possible to improve the air quality of the kitchen and the indoor air by introducing a kitchen appliance equipped with a deodorizing and sterilizing device to which an activated carbon filter, UV LED and photocatalyst technology are applied.

In addition, the sanitization of the kitchen appliance can be improved by the sterilizing action of removing the bacteria in the cooking chamber by the introduction of the UV LED.

1 is a perspective view showing a kitchen appliance having a deodorizing and sterilizing device according to an embodiment of the present disclosure;
2 to 4 are enlarged views of the components of the deodorizing and sterilizing apparatus of FIG.
5 is a perspective view showing a kitchen appliance having a deodorizing and sterilizing device according to another embodiment of the present disclosure.

Embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. In the drawings, the width, thickness, and the like of the components are enlarged in order to clearly illustrate the components of each device. It is to be understood that when an element is described as being located on another element, it is meant that the element is directly on top of the other element or that additional elements can be interposed between the elements .

Like numbers refer to like elements throughout the several views. It is to be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and the terms "comprise" Or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1 is a perspective view showing a kitchen appliance having a deodorizing and sterilizing device according to an embodiment of the present disclosure; Fig. 2 is an enlarged view of the deodorizing and sterilizing apparatus of Fig. 1. Fig. FIG. 3 is an enlarged view of the air passage portion of FIG. 1. FIG. Fig. 4 is an enlarged view of the light source unit of Fig. 1. Fig. And FIG. 5 is a perspective view showing a kitchen apparatus having a deodorizing and sterilizing apparatus according to another embodiment of the present disclosure.

1, a kitchen appliance 100 having a deodorizing and sterilizing apparatus according to an embodiment of the present invention includes a deodorizing and sterilizing unit (not shown) disposed in a space 120 on one side of an inner cooking chamber 110 and an inner cooking chamber 110 And a case 105 including a duct 160 including a plurality of ducts 140. For example, when the kitchen appliance 100 having a deodorizing and sterilizing device is a microwave oven, the case 105 includes an electric room (not shown) in which a magnetron, which is a microwave generating device irradiated into the cooking chamber 110, Shown in FIG. The duct part 160 may include an intake part 130, a deodorizing and sterilizing part 140, and an exhaust part 150, connecting the inner cooking chamber of the microwave oven and the outer side surface of the case 105 . The duct portion 160 may be formed to include a square pillar shape.

2, the duct unit 160 includes an air intake unit 130, an air reservoir unit 131, a primary filter unit 133, a UV LED light source unit 134, a secondary filter unit 136, A fan 137, and an exhaust unit 150. The deodorizing and sterilizing unit including the intake unit 130 and the UV LED light source unit 134 and the exhaust unit 150 are disposed in a horizontal direction.

The intake unit 130 is an inlet through which odor and harmful substances generated in the cooking chamber are introduced into the deodorization and sterilizing unit 140 when the microwave oven is driven, and includes a plurality of first air inlet holes 125a. In this case, harmful substances including odor and volatile organic compounds (VOCs) generated in the cooking chamber are blown through the first air inflow holes 125a by the blowing fan 137 disposed at the end of the duct portion 160, (160).

The air containing the odor and the harmful substances passing through the intake part passes through the air reservoir 131. The air reservoir 131 may have a plurality of partitions 132 disposed on the side wall thereof. Referring to FIG. 3 showing the air reservoir 131 from above, a plurality of partitions 132 are disposed on both side walls of the air reservoir 131. The partitions 132 are staggered from each other. Partitions 132 disposed in the air reservoir 131 change the flow direction of the air that has passed through the intake unit, for example, to induce turbulence generation. When the turbulence occurs, the contact time of the air in the deodorizing and sterilizing unit 140 is prolonged, and there is an advantage that the removal rate is increased in sterilization or deodorization. The direction of flow of the air in which the direction of flow is changed by the partitions 132 is shown as an arrow for convenience of understanding. 3, the path a1 of the air shows a state in which the direction of flow is changed by the partition 132 in the air reservoir 131.

The air passing through the air reservoir 131 passes through the first filter unit 133. The primary filter unit 133 may include activated carbon made of a porous material having a plurality of minute pores. Activated carbon may be formed in particulate, bead or fiber form. The primary purifying action can be generated due to the odor and the adsorption of the harmful substances in the pores of the activated carbon by increasing the surface area by the plurality of pores while passing through the primary filter unit 133. The air that has undergone the primary purification operation by adsorption through the primary filter section 133 passes through the UV LED light source section 134 and the secondary filter section 136 and undergoes secondary purification by photocatalytic decomposition.

Here, the secondary filter unit 136 may be formed of a porous metal foam plate. The surface of at least one of the upper and lower surfaces of the secondary filter portion 136 is coated with a photocatalyst material. The photocatalyst material may include at least one of the group of TiO2, ZnO, ZrO2, and WO3. The UV LED light source unit 134 has a UV LED device disposed on the substrate 127 and a light emitting surface disposed to emit the UV light source toward the second filter unit 136 coated with the photocatalyst material . The UV light source emitted from the UV LED module 134 is absorbed by the photocatalyst material of the secondary filter section 136 to cause photocatalytic decomposition. Wherein the UV light source has a wavelength range of 200 nm to 400 nm. In this case, if the number of the UV LED elements 135 arranged on the substrate 127 increases, the separation distance between the secondary filter portion 136 and the UV LED light source portion 134 becomes narrow and the distance between the UV LED elements 135 The distance between the secondary filter unit 136 and the UV LED light source unit 134 can be increased.

Photocatalytic decomposition is a phenomenon that decomposes a substance. For example, in the process of cooking food, harmful substances including odor and acetaldehyde (CH3CHO) are decomposed into carbon dioxide (CO2) and water (H2O). Specifically, when a UV light source is absorbed on the photocatalyst material, electrons (e) and holes (+) are generated on the surface and electrons react with oxygen on the surface of the photocatalyst to generate superoxide anion (O 2 -). In addition, the hole reacts with the water present in the air to generate a hydroxy radical (OH-), and the generated hydroxy radical can oxidatively decompose strong organic materials, so that pollutants and odor substances To convert it to water and carbon dioxide. Here, the UV light source 134 of the secondary filter unit 136 may be arranged in the same direction as the flow of the air to improve the decomposition efficiency of the photocatalyst.

In another example, the UV LED light source portion can position the UV LED element so as to select and use a sterilizing action in addition to the deodorizing action. 4, the UV LED light source unit 134a may cross-array the first UV LED device 135a and the second UV LED device 135b having different wavelength ranges. Here, the first UV LED element 135a irradiates a UV light source with a wavelength range of 300 nm to 400 nm, for example, a wavelength of 365 nm, and the second UV LED element 135b irradiates a UV light source with a wavelength range of 300 nm or shorter, do. In this case, the first UV LED element 135a is excellent in deodorizing property and the second UV LED element 135b is excellent in sterilizing property. At this time, the first UV LED element 135a for deodorization and the driving circuit for the second UV LED element 135b for disinfection are separately configured, and the driving circuit can be selected and driven, It is possible to selectively use the sterilizing function.

The air purified through the two-stage purification operation by the secondary filter section 136 including the primary filter section 133 and the UV LED light source section 134 is converted into harmless components to the human body. The purified air is discharged to the outside of the duct portion 160 through the second air inlet holes 125b formed on the exhaust portion 150 by the blowing fan 137 disposed at the end portion of the duct portion 160 .

In another example, the purified air purified through the two-step purge operation can be returned to the inside of the kitchen apparatus and circulated internally. 5, the deodorizing / sterilizing device 170 for internal circulation has a structure in which the intake unit 130a and the exhaust unit 150a are disposed in the direction of the cooking chamber 110, and the intake unit 130a and the exhaust unit 150a Sterilizing unit 140 may be disposed in the dishwasher 150. The duct unit 160 may include a deodorizing and sterilizing unit 140 as described above.

According to the present disclosure, a deodorizing and sterilizing unit including a primary filter including activated carbon and a secondary filter using a UV LED element is installed to remove odor substances and noxious gases generated in kitchen appliances such as a microwave oven, Indoor air quality can be improved. In addition, since the photocatalytic system using the UV LED decomposes the odorous and harmful substances into harmless components to the human body, the lifetime can be longer and the deodorizing effect can be improved as compared with the deodorizing apparatus using only the conventional adsorption system.

100: Kitchen appliance 105: Case
110: inner cooking chamber 130:
131: air retaining portion 133: primary filter portion
134: UV light source unit 136: secondary filter unit
137: blower fan 140: deodorant sterilizer
150: exhaust part 160: duct part

Claims

A case constituting an appearance including a cooking chamber; And
A deodorizing and sterilizing unit including a deodorizing and sterilizing unit including an intake unit, a UV LED light unit, and a duct unit on one side of the cooking chamber.

The air conditioner according to claim 1,
An air reservoir including a plurality of partitions provided on one side surface of the intake unit; And
Further comprising a primary filter unit for adsorbing the odor or harmful substance that has passed through the air reservoir unit.

3. The method of claim 2,
Wherein the partition comprises a deodorizing and sterilizing device disposed on both side walls of the air reservoir staggered from each other.

3. The method of claim 2,
Wherein the primary filter portion comprises a deodorizing and sterilizing device formed of granular, bead or fiber material.

The deodorizing and sterilizing unit according to claim 1, wherein the deodorizing and sterilizing unit includes the UV LED light source unit,
A secondary filter comprising a photocatalytic material; And
And a UV LED element in which a light emitting surface for emitting a UV light source in the direction of the secondary filter portion is disposed.

6. The method of claim 5,
Wherein the UV light source has a deodorizing and sterilizing device having a wavelength range of 200 nm to 400 nm.

6. The method of claim 5,
And a deodorizing and sterilizing device in which first UV LED elements and second UV LED elements having different wavelength ranges of the UV LED light source portions are arranged in a row and crossing each other.

8. The method of claim 7,
Wherein the first UV LED element emits a UV light source in a wavelength range of 300 nm to 400 nm and the second UV LED element emits a UV light source in a wavelength range of 300 nm or less.

The method according to claim 1,
Wherein the exhaust unit includes a deodorizing and sterilizing unit disposed toward the outside of the case and including the intake unit, the UV LED light source unit, and a deodorizing and sterilizing device in which the exhaust unit is disposed in a horizontal direction.

The method according to claim 1,
Sterilizing device in which the deodorizing and sterilizing portion is disposed between the intake portion and the exhaust portion, the deodorizing and sterilizing device being disposed in the direction of the cooking chamber like the intake portion.