KR101680308B1 - Humidification Apparatus - Google Patents

Humidification Apparatus Download PDF

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Publication number
KR101680308B1
KR101680308B1 KR1020150058155A KR20150058155A KR101680308B1 KR 101680308 B1 KR101680308 B1 KR 101680308B1 KR 1020150058155 A KR1020150058155 A KR 1020150058155A KR 20150058155 A KR20150058155 A KR 20150058155A KR 101680308 B1 KR101680308 B1 KR 101680308B1
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KR
South Korea
Prior art keywords
water
blowing fan
lower case
backlight
sterilizing lamp
Prior art date
Application number
KR1020150058155A
Other languages
Korean (ko)
Other versions
KR20160126719A (en
Inventor
김문환
Original Assignee
주식회사 일렉파워전자
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Priority to KR1020150058155A priority Critical patent/KR101680308B1/en
Publication of KR20160126719A publication Critical patent/KR20160126719A/en
Application granted granted Critical
Publication of KR101680308B1 publication Critical patent/KR101680308B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultra-violet radiation
    • F24F11/001—
    • F24F3/166—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • F24F2003/1667—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F2006/006—Air-humidification, e.g. cooling by humidification with water treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F2006/008—Air-humidifier with water reservoir
    • Y02B30/80—

Abstract

A humidifying device is provided. The humidifier includes a lower case including an inlet; A blowing fan positioned on the suction port of the lower case; A UV sterilizing lamp located on the lower case and spaced apart from the blowing fan; A water tank located on the blowing fan and the UV sterilizing lamp and including a sterilizing window vertically overlapping with the UV sterilizing lamp; An ultrasonic vibration element for vibrating the water contained in the water tank by ultrasonic waves to make fine particles; A bucket cover coupled to the open top end of the bucket and including a spray passage for spraying the microparticulated water and an upper vent for spacing the spray passage; And an upper case including a spray hole into which the spray passage is inserted, and which encloses the water bottle and the water bottle cap. The air sucked by the blowing fan moves through the space between the water bottle and the upper case to the upper air vents.

Description

[0001] Humidification Apparatus [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifying device for providing moisture to a predetermined area using water contained in a water container.

The humidifying device is a device for maintaining a comfortable state by providing moisture to a certain area, for example, a room. The humidifying device can provide moisture using water contained in a water reservoir. For example, the humidifying device may include an ultrasonic vibrator for vibrating the water contained in the water container by ultrasonic waves to make fine particles. In the humidifying device, various studies have been conducted to effectively prevent the propagation of bacteria in the water contained in the water container and to spray the moisture efficiently.

Korea Patent Publication No. 2005-011143

A problem to be solved by the present invention is to provide a humidifying device capable of effectively preventing the propagation of bacteria in water contained in a water bottle.

Another object of the present invention is to provide a humidifying device capable of efficiently spraying moisture using water contained in a water container.

Another object of the present invention is to provide a humidifying device which can easily confirm the shortage of water contained in a water container.

Another object of the present invention is to provide a humidifying device which can be used for various purposes.

The problems to be solved by the present invention are not limited to the above-mentioned problems. The tasks not mentioned here will be clearly understood from the following description in the ordinary skill of the art.

According to an aspect of the present invention, there is provided a humidifying apparatus comprising: a lower case including an inlet; A blowing fan positioned on the suction port of the lower case; A UV sterilizing lamp located on the lower case and spaced apart from the blowing fan; A water tank located on the blowing fan and the UV sterilizing lamp and including a sterilizing window vertically overlapping with the UV sterilizing lamp; An ultrasonic vibration element for vibrating the water contained in the water tank by ultrasonic waves to make fine particles; A bucket cover coupled to the open top end of the bucket and including a spray passage for spraying the microparticulated water and an upper vent for spacing the spray passage; And an upper case including a spray hole into which the spray passage is inserted, and which encloses the water bottle and the water bottle cap. The air sucked by the blowing fan moves through the space between the water bottle and the upper case to the upper air vents.

The humidifying device may further include a filter positioned between the lower case and the blowing fan.

The humidifying device may further include a backlight positioned between the lower case and the water reservoir. The upper case may be a translucent case through which the backlight transmits light.

The backlight may include LED lamps emitting different colors and a lamp controller controlling the LED lamps.

The backlight may be located outside the blowing fan. The UV sterilizing lamp and the backlight may surround the blowing fan.

The humidifier may further include a water level measuring member for measuring a water level of the water contained in the water bucket. When the water level measured by the water level measuring member is less than a set value, the backlight may implement a specific color to inform the user of the water shortage.

The lower case may further include a lamp seat part spaced apart from the suction opening. The UV sterilization lamp may be located within the lamp seat of the lower case.

The bucket cover may further include a spray plate located at a lower portion of the spray passage.

The water bottle may further include a coupling part coupled to the lower case. The coupling portion may include a lower vent through which the air sucked by the blowing fan passes.

The ultrasonic vibration element may be attached to a lower portion of the water reservoir. The bucket may further include a vibration hole partially exposing an upper surface of the ultrasonic vibration element.

In the humidifying device according to the technical idea of the present invention, the water contained in the water container for humidification can be directly sterilized by the UV sterilizing lamp. Accordingly, in the humidifier according to the technical idea of the present invention, propagation of the bacteria in the water contained in the water container can be effectively prevented.

Further, in the humidifying device according to the technical idea of the present invention, the air sucked by the blowing fan flows into the water passage, and the fine particle water is moved to the spray passage by the ultrasonic vibration device. Accordingly, in the humidifying device according to the technical idea of the present invention, spraying using the water contained in the water container can be efficiently performed.

In addition, the humidification device according to the technical idea of the present invention may have a backlight that implements various colors at the bottom of the water bottle. Accordingly, the humidifier according to the technical idea of the present invention can be used for various purposes according to the needs of the user.

1 and 2 are views showing an assembled perspective view of a humidifier according to an embodiment of the present invention.
3 and 4 are cross-sectional views of a humidifier according to an embodiment of the present invention.
5 is an enlarged view of the P region in Fig.
6 is a view showing an upper case of a humidifier according to an embodiment of the present invention.
FIG. 7 is a perspective view illustrating an assembled state of a humidifier according to an embodiment of the present invention. FIG.
Fig. 8 is a partial sectional view of Fig. 7. Fig.
9 is a perspective view illustrating an assembled perspective view of a lower case, a blowing fan, a UV sterilizing lamp, and a backlight according to an embodiment of the present invention.
10 is a cross-sectional view of a humidifier according to another embodiment of the present invention.
11 is a cross-sectional view of a humidifier according to another embodiment of the present invention.
12 is an enlarged view of a portion of a humidifier according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

In the drawings, the same reference numerals denote the same components throughout the specification. In the drawings, the lengths and the thicknesses of layers or regions may be exaggerated for convenience. In addition, when the first component is described as being on the second component, it is preferable that the first component is located on the upper side in direct contact with the second component, And the third component is located between the second components.

Here, the terms first, second, etc. are used for describing various components and are used for the purpose of distinguishing one component from another component. However, the first component and the second component may be arbitrarily named according to the convenience of the person skilled in the art without departing from the technical idea of the present invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. For example, an element represented in singular form includes a plurality of elements unless the context clearly dictates a singular number. Also, in the specification of the present invention, the terms such as " comprises "or" having ", and the like, designate the presence of stated features, integers, steps, operations, elements, But do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the related art and, unless expressly defined in the specification of the present invention, are intended to mean either an ideal or an overly formal meaning It is not interpreted.

(Example)

1 and 2 are views showing an assembled perspective view of a humidifier according to an embodiment of the present invention. 3 and 4 are cross-sectional views of a humidifier according to an embodiment of the present invention. 5 is an enlarged view of the P region in Fig. 6 is a view showing an upper case of a humidifier according to an embodiment of the present invention. FIG. 7 is a perspective view illustrating an assembled state of a humidifier according to an embodiment of the present invention. FIG. Fig. 8 is a partial sectional view of Fig. 7. Fig. 9 is a perspective view illustrating an assembled perspective view of a lower case, a blowing fan, a UV sterilizing lamp, and a backlight according to an embodiment of the present invention.

1 to 9, a humidifier according to an embodiment of the present invention may include a lower case 100. The lower case 100 may include the pedals 110, the inlet 120, and the lamp seat 130.

The pedestal feet 110 may protrude from the lower surface of the lower case 100. The lower case 100 may be supported by the supporting feet 110. For example, the footrests 110 may be in direct contact with the surface of the place where the humidifier is installed according to the embodiment of the present invention. The pedestal feet 110 may be located at the edge of the lower surface of the lower case 100.

The suction port 120 may penetrate the lower case 100. The suction port 120 may be positioned between the supporting feet 110. For example, the suction port 120 may be located at the center of the lower case 100.

The lamp seating part 130 may be spaced apart from the suction port 120. The lamp seating part 130 may extend in one direction. For example, the lamp seating part 130 may be a flat area extending in the Y axis direction.

The blower fan 200 may be positioned on the lower case 100. The air blowing fan 200 can suck air from the outside. The air blowing fan 200 may be aligned with the air inlet 120 of the lower case 100. For example, the blowing fan 200 may be positioned on the inlet 120 of the lower case 100. The air blowing fan 200 can suck external air through the suction port 120.

A UV sterilizing lamp 300 may be positioned on the lower case 100. The UV sterilizing lamp 300 may be spaced apart from the blowing fan 200. For example, the UV sterilization lamp 300 may be located within the lamp seat 130 of the lower case 100. The UV sterilizing lamp 300 may be positioned on one side of the blowing fan 200.

The humidifier according to the embodiment of the present invention may further include a backlight 400 positioned on the lower case 100. The backlight 400 may be spaced apart from the blowing fan 200 and the UV sterilizing lamp 300. For example, the backlight 400 may be located outside the blowing fan 200.

The backlight 400 may extend along the sides of the blowing fan 200. For example, the backlight 400 may be positioned on the sides of the blower fan 200 where the UV germicidal lamp 300 is not located. The UV sterilizing lamp 300 and the backlight 400 may surround the blowing fan 200.

The backlight 400 may include a circuit board 410, LED lamps 420, and a lamp controller 430. The LED lamps 420 and the lamp controller 430 may be mounted on the circuit board 410. The LED lamps 420 and the lamp controller 430 may be mounted on the other surface of the circuit board 410. For example, the LED lamps 420 may be mounted on the upper surface of the circuit board 410, and the lamp controller 430 may be mounted on the lower surface of the circuit board 410.

The LED lamps 420 may have different colors. The LED lamps 420 may be controlled by the lamp controller 430. For example, the lamp controller 430 may control the lighting of the LED lamps 420 according to a user's request received through an external device such as a remote controller.

The humidifier according to the embodiment of the present invention is described in which the backlight 400 receives a radio signal from an external device. To this end, the backlight 400 of the humidifying device according to the embodiment of the present invention may include a wireless receiver. However, the humidification device according to another embodiment of the present invention may include a separate lamp control panel for receiving a user's request. For example, in the humidifier according to another embodiment of the present invention, the lamp control panel may be positioned on the surface of the lower case 100 or the upper case 800 described below.

A water bottle 500 may be positioned on the blowing fan 200 and the UV sterilizing lamp 300. The bucket 500 can receive water W for humidification. The upper end of the water bottle 500 can be opened to easily supply water.

The humidifier according to the embodiment of the present invention is described as having the backlight 400 positioned between the lower case 100 and the water bottle 500. However, the backlight 400 may be located in any region that does not obstruct the flow of the air sucked by the blowing fan 200. For example, in the humidifier according to another embodiment of the present invention, a backlight 400 may be positioned on the outer surface of the water bottle 500 and spaced apart from the upper case 800.

The water bottle 500 may include a coupling part 510 coupled to the lower case 100. The coupling part 510 may extend along the side surface of the water bottle 500. The coupling portion 510 may include a lower vent 511 through which the air sucked by the blowing fan 200 passes.

The water bottle 500 may further include a sterilizing window 520. The sterilization window 520 may be vertically aligned with the UV sterilization lamp 300. The water W contained in the water bottle 500 can be sterilized by the light of the UV sterilizing lamp 300 applied through the sterilizing window 520. [

The humidifier according to the technical idea of the present invention has a UV sterilizing lamp 300 located below the sterilizing window 520 of the water bottle 500. Accordingly, in the humidifying apparatus according to the technical idea of the present invention, the water W contained in the water bottle 500 can be directly sterilized by the UV sterilizing lamp 300. Further, in the humidifying apparatus according to the technical idea of the present invention, the water W contained in the water bottle 500 can be continuously sterilized by the UV sterilizing lamp 300. Therefore, in the humidifying apparatus according to the technical idea of the present invention, the propagation of the bacteria in the water W contained in the water bottle 500 can be effectively prevented.

The ultrasonic vibration element 600 may be positioned below the water bottle 500. The ultrasonic vibration element 600 may be made of fine particles by vibrating the water W contained in the water bottle 500 with ultrasonic waves. The ultrasonic vibration element 600 may be attached to a lower portion of the water bottle 500. The water bottle 500 may include a vibration hole 530 partially exposing an upper surface of the ultrasonic vibration element 600. The water W accommodated in the water bottle 500 can directly contact the ultrasonic vibration element 600 through the vibration hole 530.

The bucket cover (700) can be coupled to the opened upper end of the bucket (500). The water tub cover 700 may include a spray passage 710 for spraying fine particles by the ultrasonic vibration element 600 and an upper vent hole 720 spaced from the spray passage 710 . Air sucked by the blowing fan 200 can pass through the upper ventilation hole 720.

The humidifying device according to the embodiment of the present invention can suck air sucked by the blowing fan 200 into the upper part of the water bottle 500 through the upper ventilation hole 720 and then through the spraying path 710 . The micronized water by the ultrasonic vibration element 600 can be sprayed to the outside of the humidifier according to the embodiment of the present invention by the air discharged through the spray passage 710. Accordingly, in the humidifying apparatus according to the embodiment of the present invention, the fine particle water can be sprayed on the upper portion of the water bottle 500. Accordingly, in the humidifying apparatus according to the embodiment of the present invention, spraying using the water W contained in the water bottle 500 can be efficiently performed.

The bucket cover 700 may further include a spray plate 730 located under the spray passage 710. The spraying plate 730 can prevent the water W not contained in the water bottle 500 from being transferred into the spray passage 710. For example, the spray plate 730 may prevent naturally evaporated water in the water W contained in the water bottle 500 from moving to the spray passage 710. The horizontal area of the spray plate 730 may be larger than the horizontal area of the spray passage 710.

The bucket 500 and the bucket cover 700 may be enclosed by the upper case 700. The upper case 700 can be engaged with the lower case 100. The upper case 700 can provide a path for air sucked by the blowing fan 200. For example, the air sucked by the blowing fan 200 can be moved to the upper vent hole 720 of the water tub lid 700 through a space between the water bottle 500 and the upper case 800 .

The humidifier according to the embodiment of the present invention is characterized in that the air blowing fan 200 and the UV sterilizing lamp 300 are positioned below the water bottle 500 and the air sucked by the blowing fan 200 flows into the water bottle 500 And can move through the space between the upper case 800 and the upper case 800. [ Accordingly, in the humidifying apparatus according to the embodiment of the present invention, the space required for humidification can be minimized.

The upper case 800 may include a spray hole 810 into which the spray passage 710 of the water tub lid 700 is inserted. The spray hole 810 may be in direct contact with the side surface of the spray passage 710.

Light emitted from the backlight 400 can pass through the upper case 800. For example, the upper case 800 may be a translucent material.

In the humidifier according to the embodiment of the present invention, the upper case 800 can transmit light by the backlight 400. Accordingly, the humidifying device according to the embodiment of the present invention can be utilized as a sleeping light or a mood.

The humidifier according to another embodiment of the present invention may further include a driving controller 910 as shown in FIG. The driving control unit 910 may control the operation of the humidifier according to the user's setting. For example, the driving control unit 910 may control the blowing fan 200, the UV sterilizing lamp 300, and the ultrasonic vibration device 600 to operate only for a predetermined time. For example, the blowing fan 200, the UV sterilizing lamp 300, and the ultrasonic vibration element 600 may be periodically stopped by the driving control unit 910. For example, the driving control unit 910 operates the blowing fan 200, the UV sterilizing lamp 300, and the ultrasonic vibration device 600 for a first set time, The UV sterilizing lamp 300, and the ultrasonic vibration element 600 may be repeatedly stopped.

The drive control unit 910 may be located between the lower case 100 and the water reservoir 500. For example, the drive control unit 910 may be positioned on a side surface of the ultrasonic vibration element 600.

The humidifier according to another embodiment of the present invention may further include a water level measuring member 920 located in the water tank 500, as shown in FIG. The water level measuring member 920 can measure the water level of the water W contained in the water tank 500.

The level measuring member 920 may be electrically connected to the backlight 400. For example, the backlight 400 may receive the water level of the water W contained in the water bottle 500 from the water level measuring member 920. The backlight 400 can inform the user of the water shortage if the water level measured by the water level measuring member 920 is less than a set value. For example, the backlight 400 may implement a specific color set by the user if the water level of the water W contained in the water can 500 is less than a set value. Accordingly, in the humidifier according to another embodiment of the present invention, the user can easily confirm the water shortage.

The level measuring member 920 may be electrically connected to the driving control unit 910. The drive control unit 910 can receive the water level of the water W contained in the water tank 500 from the water level measuring member 920. [ The drive control unit 910 can stop the operation of the blowing fan 200, the UV sterilizing lamp 300 and the ultrasonic vibration device 600 when the water level measured by the water level measuring member 920 is lower than a set value have.

In the humidifier according to another embodiment of the present invention, the ultrasonic vibration element 600 may be positioned on the bottom surface of the water bottle 500, as shown in FIG. The water bottle 500 may include a receiving part 540 for receiving the ultrasonic vibration device 600 on a bottom surface thereof. The receiving portion 540 of the water bottle 500 may protrude toward the lower case 100. Accordingly, in the humidifying apparatus according to another embodiment of the present invention, the position of the ultrasonic vibration element 600 can be physically stabilized.

100: lower case 200: blowing fan
300: UV sterilization lamp 400: Backlight
500: Water bottle 600: Ultrasonic vibration element
700: Bucket cover 800: Upper case
910: drive control unit 920: level measurement member

Claims (12)

A lower case including an inlet;
A blowing fan positioned on the suction port of the lower case;
A UV sterilizing lamp located on the lower case and spaced apart from the blowing fan;
And a sterilizing window disposed on the ventilation fan and the UV sterilizing lamp while vertically overlapping with the UV sterilizing lamp while protruding from the bottom surface of the accommodating portion protruding in the direction of the lower case;
An ultrasonic vibration element accommodated in a receiving portion protruding from a bottom surface of the water bottle, the ultrasonic vibration element vibrating the water contained in the water bottle into fine particles by ultrasonic waves;
A spray passage for spraying the fine particle water and an upper vent hole spaced apart from the spray passage, and a horizontal area larger than a horizontal area of the spray passage, the spray passage being located at a lower portion of the spray passage, And a spray plate for preventing water that is naturally evaporated in the water bottle from moving to the spray passage; And
And an upper case including a spray hole into which the spray passage is inserted and surrounding the water container and the water container case,
Wherein the air sucked by the blowing fan moves through the space between the water bottle and the upper case to the upper air vents. The method according to claim 1,
And a filter positioned between the lower case and the blowing fan. The method according to claim 1,
Further comprising a backlight positioned between the lower case and the water bottle,
Wherein the upper case is a translucent case through which light by the backlight is transmitted. The method of claim 3,
Wherein the backlight includes LED lamps that implement different colors and a lamp controller that controls the LED lamps. The method of claim 3,
Wherein the backlight is located outside the blowing fan,
Wherein the UV sterilizing lamp and the backlight surround the blowing fan. 6. The method of claim 5,
A water level measuring member for measuring a water level of the water contained in the water bucket,
Wherein the backlight implements a specific color to notify of a water shortage if the water level measured by the water level measuring member is lower than a set value. The method according to claim 1,
The lower case further includes a lamp mounting part spaced apart from the inlet,
Wherein the UV sterilizing lamp is located within the lamp seat of the lower case. delete The method according to claim 1,
The water bottle further includes a coupling portion coupled to the lower case,
Wherein the coupling portion includes a lower vent through which the air sucked by the blowing fan passes. delete The method according to claim 1,
Further comprising a drive control unit for controlling the blowing fan, the UV sterilizing lamp, and the ultrasonic vibration element according to a user's setting. 12. The humidifying apparatus according to claim 11, wherein the drive control unit stops operation of the blowing fan, the UV sterilizing lamp, and the ultrasonic vibration element when the water level of the water contained in the water bottle is below a set value.
KR1020150058155A 2015-04-24 2015-04-24 Humidification Apparatus KR101680308B1 (en)

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KR102280396B1 (en) * 2019-09-30 2021-07-22 박재영 Separation Type Humidifier
KR102145860B1 (en) * 2020-03-16 2020-08-19 주식회사 디케이마켓 Apparatus for skin cleansing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200265726Y1 (en) * 2001-11-21 2002-02-25 주식회사 오비에스 Humidifier with fragrance emission function

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Publication number Priority date Publication date Assignee Title
KR100599965B1 (en) 2003-07-22 2006-07-12 비오이 하이디스 테크놀로지 주식회사 Backlight unit for liquid crystal display

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200265726Y1 (en) * 2001-11-21 2002-02-25 주식회사 오비에스 Humidifier with fragrance emission function

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