KR20170037736A - Apparatus for maintaining freshness and refrigerator therewith - Google Patents

Apparatus for maintaining freshness and refrigerator therewith Download PDF

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Publication number
KR20170037736A
KR20170037736A KR1020150136541A KR20150136541A KR20170037736A KR 20170037736 A KR20170037736 A KR 20170037736A KR 1020150136541 A KR1020150136541 A KR 1020150136541A KR 20150136541 A KR20150136541 A KR 20150136541A KR 20170037736 A KR20170037736 A KR 20170037736A
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KR
South Korea
Prior art keywords
light
unit
case
irradiating
photocatalyst
Prior art date
Application number
KR1020150136541A
Other languages
Korean (ko)
Inventor
구종현
Original Assignee
서울바이오시스 주식회사
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Priority to KR1020150136541A priority Critical patent/KR20170037736A/en
Publication of KR20170037736A publication Critical patent/KR20170037736A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/015—Preserving by irradiation or electric treatment without heating effect
    • 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultra-violet radiation
    • 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultra-violet radiation
    • A61L9/205—Ultra-violet radiation using a photocatalyst or photosensitiser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/002—Catalysts characterised by their physical properties
    • B01J35/004—Photocatalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0417—Treating air flowing to refrigeration compartments by purification using an UV-lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening
    • Y02B40/30—

Abstract

The invention relates to a lead retaining device and a refrigerator having the same. The disclosed invention includes: a case having a closed space formed therein; A light irradiation unit installed inside the case to irradiate light; A photocatalyst disposed inside the case and optically reacting with light emitted from the light irradiating unit; And a position adjusting section for changing the position of the light irradiating section to a first position for irradiating light toward the outside of the case or a second position for irradiating light toward the photocatalyst section.

Description

[0001] APPARATUS FOR MAINTAINING FRESHNESS AND REFRIGERATOR THEREWITH [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a line maintaining device and a refrigerator having the same, and more particularly, to a line maintaining device for maintaining a line of a fresh storage product stored in a refrigerator and a refrigerator having the same.

2. Description of the Related Art [0002] Generally, a refrigerator is a household appliance that allows food to be stored at low temperatures in an internal storage space that is shielded by a door. The refrigerator cools the inside of the storage space using cool air generated by heat exchange with a refrigerant circulating in the refrigeration cycle It is configured to store the stored food in an optimal state.

Ethylene gas, which is produced from some fruits during storage, is known to be a major factor in deteriorating the freshness and shelf life of horticultural products when storing fresh storage such as vegetables, fruits and vegetables in such a refrigerator.

Ethylene is a kind of gas generated by aging of some fruits. It acts as an aging promoting hormone that promotes aging of fruits and vegetables, and the amount of ethylene generated through the positive feedback process can increase rapidly.

Failure to control ethylene gas during the storage of vegetables and fruits may accelerate the maturation or aging of fruit and vegetables. Therefore, it is recommended to keep the fruits and vegetables separately and not to store the fruits and vegetables in order to avoid the aging and decay of ethylene when storing the vegetables such as vegetables and fruits in the vegetables room of the refrigerator.

In addition, there is a risk that residual agricultural chemicals may be present even if the horticultural products such as vegetables and fruits are washed, and that there is a fear of decay of corruption, contamination and storability caused by bacteria or viruses that may remain on the surface of the horticultural products have.

It is an object of the present invention to provide a leading retaining device and a refrigerator having the same, which can effectively keep the freshness stored in a refrigerator.

According to an aspect of the present invention, there is provided a leading retaining device comprising: a case having a closed space formed therein; A light irradiating unit installed inside the case to emit light; A photocatalyst disposed inside the case and optically reacting with light emitted from the light irradiating unit; And a position adjuster for changing a position of the light irradiating part to a first position for irradiating light toward the outside of the case or a second position for irradiating light toward the photocatalyst part.

The case is formed with an opening portion through which the closed space inside the case is opened to the outside of the case; The light irradiating unit preferably irradiates light from the first position toward the outside of the case through the opening.

The position adjusting unit may include a moving unit rotatably installed in the case and rotated to change the position of the light irradiating unit to the first position or the second position; And a driving unit for rotating the moving unit.

Further, the moving unit may be provided in the form of an arm having the light irradiation unit on one side and the other side rotatably coupled to the case, and may be rotated around the other side so as to move the position of the light irradiation unit to the first position, And a rod member for changing the second position to the second position.

In addition, the moving unit may include a drum disposed on an outer circumferential surface thereof and having a center portion rotatably coupled to the case, the center of the drum portion being rotated about a central portion, And a drum member for changing the first position to the second position.

It is also preferable that the drum member is installed such that the opening portion is covered by a part of the outer circumferential surface of the drum member.

The photocatalyst preferably comprises titanium oxide (TiO 2 ).

The light irradiation unit may include at least one of a first LED that emits ultraviolet rays having a peak wavelength in a wavelength band of the sterilizing region and a second LED that emits ultraviolet rays having a peak wavelength in a wavelength band of the near ultraviolet ray.

Further, the case is provided in the form of an enclosure having a front surface, a back surface, a side surface, an upper surface, and a bottom surface; It is preferable that the opening portion is formed on the bottom surface of the case, and at least one of the top surface, the side surface, and the back surface is formed with an air hole for allowing air to flow into and out of the case.

The case includes an inner case forming a wall surface so as to form a storage chamber on the inner side thereof and an outer case provided on the outer side of the inner case so as to form an installation space between the inner case and the outer case, And is formed to pass through the inner case so that a space is opened to the storage chamber side.

According to another aspect of the present invention, there is provided a refrigerator comprising: a main body including: an inner case forming a storage chamber on an inner side; and an outer case provided on an outer side of the inner case to form an installation space outside the inner case; A door installed in the main body to open and close the storage chamber; And a line retention device installed in the main body and irradiating light to the storage room or the installation space, wherein the line retention device is installed outside the inner case, which forms a wall surface, A light irradiation unit; A photocatalyst disposed outside the inner case and optically reacting with light emitted from the light irradiating unit; And a position adjusting unit for changing a position of the light irradiating unit to a first position for irradiating light toward the storage chamber or a second position for irradiating light toward the photocatalyst unit.

It is preferable that the present invention further includes a control unit for controlling the operation of the line keeping apparatus such that the position of the irradiation unit is selectively changed to the first position or the second position.

Preferably, the control unit controls the operation of the position adjusting unit such that the position of the light irradiating unit is repeatedly changed with time.

Preferably, the control unit controls the operation of the position adjusting unit to change the position of the light irradiating unit in conjunction with whether the door is open or closed.

Further, the present invention may further include a sensing unit for sensing whether the door is open or closed; Wherein the control unit controls the operation of the position adjusting unit so that the light irradiating unit is located at the first position when the door is closed by the sensing unit and when the opening of the door is sensed by the sensing unit, And controls the operation of the position adjustment unit so that the irradiation unit is located at the second position.

The light irradiation unit may include at least one of a first LED that emits ultraviolet rays having a peak wavelength in a wavelength range of a sterilizing region and a second LED that emits ultraviolet rays having a peak wavelength in a wavelength band of the near ultraviolet ray; It is preferable that the control unit controls the operation of the light irradiation unit such that the lighting of at least one of the first LED and the second LED is continuously maintained regardless of whether the position of the light irradiation unit changes or not.

Further, the present invention further includes a circulation fan installed in the main body to guide the air flow for introducing the air in the storage chamber to the side of the line holding device; It is preferable that a plurality of the line holding devices are arranged so as to surround the circulating fan.

It is preferable that the above-mentioned line holding device is provided such that the photocatalyst portion is located at the center and a plurality of light irradiating portions are disposed so as to surround the photocatalyst portion.

It is preferable that the above-described line holding device further includes a light irradiation part for photocatalytic reaction provided to irradiate light toward the photocatalyst part.

According to the present invention, there is provided a leading-edge holding device and a refrigerator including the same, wherein a single light irradiation part is used to sterilize a horticultural product stored in a storage room of a refrigerator, decompose the residual pesticide component, induce hormissis, induce photosynthesis, It is possible to effectively provide a complex function such as sterilization, deodorization and the like inside the storage compartment, and also to safely protect the user from exposure to ultraviolet rays harmful to the human body.

FIG. 1 is a perspective view showing a leading maintaining apparatus according to an embodiment of the present invention.
2 is a sectional view taken along the line "AA" in Fig.
FIG. 3 is a cross-sectional view showing a change in the position of the light irradiation unit shown in FIG. 2. FIG.
FIG. 4 is a cross-sectional view illustrating a line keeping apparatus according to another embodiment of the present invention.
5 is a view showing an example of using a line keeping apparatus according to another embodiment of the present invention.
FIG. 6 is a block diagram of a refrigerator according to an embodiment of the present invention. Referring to FIG.
7 is a bottom view of a portion of the interior of the refrigerator according to an embodiment of the present invention.
8 is a view showing a state where the inner case inside the refrigerator shown in FIG. 7 is removed.
9 is a cross-sectional view taken along the line "BB" in Fig.
10 is a bottom view showing a state in which light is irradiated toward the storage chamber.
11 is a view showing a state in which the inner case inside the refrigerator shown in FIG. 10 is removed.
12 is a sectional view taken along the line "CC" in Fig.
13 is a bottom view illustrating a part of the interior of the refrigerator according to another embodiment of the present invention.
FIG. 14 is a view showing a state in which the inner case inside the refrigerator shown in FIG. 13 is removed.
15 is a bottom view showing a state in which light is irradiated toward the storage chamber.
FIG. 16 is a view showing a state in which the inner case inside the refrigerator shown in FIG. 15 is removed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention and a refrigerator having the same will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

2 is a cross-sectional view taken along the line AA of FIG. 1, and FIG. 3 is a cross-sectional view of the position maintaining state of the light irradiating unit shown in FIG. 2 Fig.

1 and 2, a line holding apparatus 10 according to an embodiment of the present invention includes a case 11, a light irradiation unit 13, a photocatalytic unit 15, and a position adjustment unit 17 .

The case 11 is provided so as to form a closed space therein. In the present embodiment, it is exemplified that the case 11 is provided in the shape of a hexahedron having a front face, a back face, a side face, an upper face, and a bottom face.

An opening 11a is formed in the bottom surface of the case 11 thus formed. The opening portion 11a is formed so as to pass through the bottom surface of the case 11 so that the closed space inside the case 11 is opened to the outside of the case 11. [

At least one of the upper surface, the side surface and the rear surface of the case 11 is provided with an air hole 11b for allowing air to flow into the case 11. [ In the present embodiment, it is exemplified that the air holes 11b are formed so as to pass through the side surface and the back surface of the case 11, respectively.

The front surface of the case 11 is provided with an air passage for blocking air from being exposed to the outside through the front surface of the case 11 to be irradiated by the light irradiation unit 13 A flow path 12 is formed.

The air flow path 12 in this embodiment has a first blocking wall 12a extending in the longitudinal direction from the bottom surface of the case 11 so as to form a space between the air flow path 12 and the upper surface of the case 11, (12a) and a second blocking wall (12b) formed to extend in the longitudinal direction from the upper surface of the case (11) so as to form a spacing space between the first blocking wall (12b). ≪ / RTI >

The air flow path 12 formed in this way forms a path for the outside air to enter and exit the inside of the case 11 and a light irradiated to the photocatalytic unit 15 by the light irradiation unit 13 It is possible to provide a blocking structure for blocking exposure of the case 11 to the outside.

The light irradiation unit 13 is provided inside the case 11 and emits light. The light irradiating unit 13 includes a first LED that emits ultraviolet rays having a peak wavelength in the wavelength range of the sterilizing region, a second LED that emits ultraviolet rays having a peak wavelength in the near ultraviolet wavelength band, a second LED that emits ultraviolet rays having a peak wavelength in the wavelength band of visible light And a third LED that emits ultraviolet rays.

Ultraviolet rays in the ultraviolet rays of the wavelength range of the sterilizing region emitted through the first LED, that is, ultraviolet rays in the UV-C region having peak wavelengths of 200 to 280 nm, particularly ultraviolet rays having a peak wavelength at 275 nm are excellent in sterilizing effect.

In addition, since ultraviolet rays of the UV-C region emitted through the first LED are excellent in decomposing pesticide components, when they are irradiated to horticultural products such as vegetables and fruits, they effectively remove pesticide residues from the horticultural products, Can contribute to the improvement of stability of

Ultraviolet rays in the UV-A or UV-B region, particularly the ultraviolet rays having a peak wavelength at 365 nm, in which the ultraviolet rays of the near-ultraviolet region wavelength band emitted through the second LED, that is, the peak wavelengths between 280 and 400 nm, It has a great effect to decompose harmful components, pollution, and smell.

In addition, ultraviolet rays of the UV-A or UV-B region emitted through the second LED can stimulate horticultural products when irradiated to the horticultural products.

Hormesis is a special biological protection system that can protect lives against more powerful toxic stimuli if they continue to receive low intensity stimuli such as low amounts of ultraviolet light and low level radiation.

That is, ultraviolet rays of the UV-A or UV-B region emitted through the second LED can stimulate the horticultural products so that the horticulture of the horticultural product induces a beneficial functional substance capable of promoting the health of the human body in the horticultural products So that generation can be induced.

The light in the wavelength range of the visible light ray, which is cut through the third LED, that is, the light having the peak wavelength of 400 to 700 nm induces the photosynthesis of the horticultural products and suppresses the respiration of the horticultural products, It is effective to make it possible.

The photocatalyst unit 15 is provided inside the case 11 so as to be optically reacted with the light irradiated from the light irradiating unit 13. The photocatalyst unit 15 may be disposed inside the case 11 between the light irradiating unit 13 and the air flow path 12 and may include a support member ) Coated with a photocatalyst such as titanium oxide (TiO 2 ).

In the photocatalyst portion 15 thus formed, a reaction occurs in which the surface of the photocatalyst is activated by the ultraviolet light irradiated through the light irradiating portion 13, and the cause of the contamination and odor around the photocatalytic portion 15 The deodorizing action of removing harmful components, food odor, etc. contained in the air flowing into the discharge passage (a) can be performed.

In this embodiment, the photocatalyst 15 is formed on the outer circumferential surface of the support in the form coated with titanium oxide, and the light irradiating unit 13 includes a second LED that emits ultraviolet rays having a peak wavelength at 365 nm However, the present invention is not limited thereto.

In the present invention, the photocatalyst unit 15 is not only a titanium oxide but also a material in which a substance such as platinum (Pt) capable of further promoting a photocatalytic reaction is further added to titanium oxide, or a photocatalytic reaction with ultraviolet light in addition to titanium oxide Or < RTI ID = 0.0 > a < / RTI >

Further, in the present invention, the ultraviolet rays emitted from the light irradiation unit 13 may include all the ultraviolet rays in the wavelength range other than 365 nm, which may cause a photocatalytic reaction with the photocatalyst.

The position adjusting section 17 adjusts the position of the light irradiating section 13 to the first position for irradiating the light toward the outside of the case 11 or the second position for irradiating the light toward the photocatalyst section 15 Respectively. The position adjusting portion 17 includes a moving portion 17a and a driving portion (not shown).

The first position is defined as a position at which the light irradiation unit 13 irradiates light toward the outside of the case 11 through the opening 11a while being adjacent to the opening 11a (see FIG. 2) , And the second position is defined as a position where the light irradiation unit 13 is rotated at a rotation angle of about 90 DEG from the first position so as to face the photocatalytic unit 15 and irradiate light toward the photocatalytic unit 15 3).

The moving part 17a is rotatably installed in the case 11 so as to change the position of the light irradiation part 13 to the first position or the second position and the driving part is provided to rotate the moving part 17a do.

In this embodiment, the moving part 17a is exemplified as being provided with an irradiation part 13 on one side and an arm in which the other side is rotatably coupled to the case 11. The moving part 17a is rotated around the other side to change the position of the light irradiation part 13 to the first position or the second position.

The driving unit may include an actuator that generates power for rotating the moving unit 17a and a power transmitting member that converts the power of the actuator into a rotational force for rotating the moving unit 17a and transmits the rotating force.

Hereinafter, the operation and effect of the line holding device 10 according to the present embodiment will be described with reference to Figs. 1 to 3. Fig.

1 and 2, the line keeping apparatus 10 according to the present embodiment may be installed in a storage room of a refrigerator such as a fresh room in which horticultural products such as vegetables and fruits are stored. For example, the line keeping device 10 may be installed in the storage room of the refrigerator so that the bottom surface of the case 11 faces the side of the horticultural product stored in the storage room.

The line keeping apparatus 10 installed as described above can irradiate light toward a garden product stored in the storage room. More specifically,

The light emitted by the light irradiation part 13 is irradiated toward the outside of the case 11 through the opening part 11a in a state where the light irradiation part 13 is located at the first position, It can act on the surface of horticultural products and provide various effects depending on the kind of light.

For example, in the case where the light irradiating unit 13 has a first LED, the light irradiating unit 13 irradiates the ultraviolet rays of the sterilizing region wavelength band, that is, the ultraviolet rays of the UV-C region located between 200 and 280 nm, By irradiating the product, it is possible to perform functions such as sterilization for the horticultural products and removal of residual pesticide components.

As another example, when the light irradiating part 13 is in the form of having a second LED, the light irradiating part 13 may be formed of a UV-A or UV-light having a peak wavelength of 280 to 400 nm, By irradiating the ultraviolet rays of the B region to the horticultural products, it is possible to induce the hormesis of the horticultural products, thereby inducing the production of beneficial functional substances capable of promoting the health of the human body in the horticultural products Can be performed.

As another example, when the light irradiating part 13 is provided with the third LED, the light irradiating part 13 emits light in the visible light region wavelength range, that is, light having a peak wavelength of 400 to 700 nm to the horticultural product By conducting the investigation, it is possible to induce the photosynthesis of the horticultural products and suppress the respiration of the horticultural products, thereby enabling the freshness of the horticultural products to be maintained for a long time.

In addition, the light irradiating unit 13 of the present embodiment may be provided in a form including at least two of the first LED, the second LED and the third LED capable of providing unique functions as described above, The light irradiating unit 13 can provide a combination of the above functions.

In the present embodiment, the light irradiating unit 13 is provided in a form including both the first LED, the second LED and the third LED to perform functions such as sterilization, residual pesticide decomposition, hormomy induction, photosynthesis induction and respiration suppression It is exemplified that various types of light that can be performed can be simultaneously irradiated toward the garden product stored in the storage room of the refrigerator.

The irradiation of light as described above is performed in a state in which the door of the refrigerator is closed so that the light is not exposed to the outside of the refrigerator, that is, the user who opens the door of the refrigerator is not exposed to the light irradiated by the light irradiating unit 13 desirable.

This object can be achieved by causing the change of the position of the light irradiation part 13 to be interlocked with the door opening / closing operation.

That is, when the door of the refrigerator is closed, the operation of the position adjusting part 17 is adjusted so that the light irradiating part 13 is located at the first position, and when the door of the refrigerator is opened, The user who opens the door of the refrigerator can be prevented from being exposed to the light irradiated from the light irradiating unit 13 through the operation control for adjusting the operation of the position adjusting unit 17. [

The operation of the position adjusting unit 17 may be controlled by a controller for controlling the operation of the refrigerator or may be interlocked with a sensor for detecting opening and closing of the door of the refrigerator, May be controlled by a control device that independently controls the control device.

On the other hand, when the door of the refrigerator is opened, the light irradiation unit 13 can be moved to the second position and irradiate light toward the photocatalyst unit 15, as shown in Fig.

When the light is irradiated toward the photocatalytic unit 15 as described above, the photocatalytic surface of the photocatalytic unit 15 is activated by ultraviolet rays, and the cause of the contamination and odor around the photocatalytic unit 15 The deodorizing action for removing the odor of the air introduced into the case 11 occurs.

At this time, the inflow of air into the case 11 can be performed through the air hole 11b formed in the case 11 and the air flow path 12. Thus, the air introduced into the case 11 is supplied to the photocatalyst unit 15, and then discharged through the air hole 11b and the air flow path 12 to the outside of the case 11, that is, the storage room of the refrigerator.

That is, in a state where the door of the refrigerator is opened, light is irradiated toward the photocatalytic unit 15 at a second position where the light irradiated by the light irradiation unit 13 is not exposed to the outside of the case 11, So that the inside of the storage room can be deodorized.

At this time, the light irradiation unit 13 is operated so that the lighting of both the first LED, the second LED and the third LED provided in the light irradiation unit 13 is continuously maintained regardless of the position of the light irradiation unit 13 desirable.

Both the first LED, the second LED and the third LED are turned on when the light irradiating unit 13 irradiates the light toward the outside of the case 11 from the first position and the light irradiating unit 13 is illuminated from the second position It is preferable that both the first LED, the second LED and the third LED are kept lit even when the light is irradiated toward the photocatalyst unit 15. [

Thus, when the light irradiating unit 13 irradiates light from the first position toward the outside of the case 11, it performs functions such as sterilization, decomposition of residual pesticide components, induction of hormones, induction of photosynthesis and suppression of respiration in a complex manner can do

When the light irradiation unit 13 irradiates light toward the photocatalytic unit 15 from the second position, in addition to the ultraviolet rays of the UV-A region, which is most activated by the photocatalytic efficiency of the photocatalytic unit 15, Both ultraviolet rays in the UV-B and UV-C regions having a higher absorption rate of the photocatalyst than the ultraviolet rays are irradiated toward the photocatalytic unit 15, thereby enabling the direct sterilization effect as well as the photocatalytic efficiency to be further enhanced.

In the case of closing the refrigerator door by using the light irradiating part 13 whose position is changed according to the opening and closing of the refrigerator door, the line holding device 10 of the present embodiment as described above can be used for sterilization, , Photosynthesis induction and respiration suppression, and sterilization and deodorization of the inside of the storage compartment of the refrigerator can be performed while the ultraviolet rays harmful to the human body are not exposed to the user when the refrigerator door is opened.

The line holding device 10 of the present embodiment can be used for sterilizing the horticultural products stored in the storage room of the refrigerator, decomposing residual pesticide components, inducing homicides, inducing photosynthesis and suppressing respiration by using one light irradiation part 13 Function, sterilization and deodorization of the interior of the storage chamber, and also protects the user from exposure to ultraviolet rays harmful to the human body.

FIG. 4 is a cross-sectional view illustrating a line retention device according to another embodiment of the present invention, and FIG. 5 is a view illustrating an example of using a line retention device according to another embodiment of the present invention.

Hereinafter, the configuration and operation of the line keeping apparatus according to another embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG.

For convenience of description, the same or similar structures and functions as those of the above-described embodiment are referred to by the same reference numerals, and a detailed description thereof will be omitted.

Referring to FIG. 4, the line holding apparatus 20 according to another embodiment of the present invention includes a case 11, a light irradiation unit 13, a photocatalyst unit 15, and a position adjustment unit 27.

The position adjusting portion 27 includes a moving portion 27a that is rotatably installed in the case 11 and is rotated to change the position of the light irradiating portion 13 to the first position or the second position, 27a includes a drum member which is provided in the form of a drum rotatably coupled to the case 11 at its center.

The light irradiating unit 13 is installed on the outer circumferential surface of the moving unit 27a provided in the drum shape and the moving unit 27a provided with the light irradiating unit 13 is rotated around the center of the moving unit 27a, Can be changed to the first position or the second position.

The drum member of the moving unit 27a as described above is installed such that the opening 11a is covered by a part of the outer peripheral surface of the drum member.

The opening 11a formed to penetrate the bottom surface of the case 11 serves as a passage for passing the light irradiated by the light irradiating unit 13 to the outside of the case 11 at the first position, It is always kept blocked by the moving part 27a regardless of the rotating position of the moving part 27a.

5, when the position of the light irradiating unit 13 is not at the first position, the ultraviolet light irradiated in the state that the light irradiating unit 13 is not in the first position is the opening 11a It is possible to prevent leakage of ultraviolet rays, which are harmful to the human body, to the user during the opening and closing of the refrigerator door.

FIG. 6 is a view illustrating a configuration of a refrigerator according to an embodiment of the present invention, and FIG. 7 is a bottom view of a portion of a refrigerator according to an embodiment of the present invention. 8 is a view showing a state in which the inner case inside the refrigerator shown in Fig. 7 is removed, and Fig. 9 is a sectional view taken along line "B-B" in Fig. 11 is a view showing a state in which the inner case inside the refrigerator shown in Fig. 10 is removed, Fig. 12 is a view showing the state of "CC" in Fig. 11, Fig.

6 to 9, a refrigerator according to an embodiment of the present invention includes a main body 1, a door (not shown), a line holding device 30, and a control unit 3.

The main body 1 is a skeleton of the refrigerator according to the present embodiment, and a storage chamber is formed inside the main body 30. [

According to the present embodiment, the main body 1 includes an inner case 1a configured to form a storage room on the inner side thereof, and an outer case 1a provided outside the inner case 1a so as to form an installation space on the outer side of the inner case 1a. And a case 1b.

In addition, the inner case 1a is formed so that the opening portion 1c is opened so that an installation space outside the inner case 1a is opened to the storage chamber inside the inner case 1a. The door is installed in the main body 1 so as to open and close the opened front side of the storage compartment formed inside the inner case 1a.

The line keeping device 30 is installed in the main body 1 so as to be positioned in an installation space formed between the inner case 1a and the outer case 1b and irradiates light to the storage room or the installation space.

The line retaining device 30 includes a light irradiating portion 33 provided outside the inner case 1a for irradiating light and a light irradiating portion 33 provided outside the inner case 1a so as to be positioned in the installation space, A photocatalytic unit 35 for photoreacting with the light irradiated from the first position, and a position adjustment unit 37 for changing the position of the light irradiation unit to the first position or the second position.

Here, the first position is defined as a position at which the light irradiating portion 33 is adjacent to the opening portion 1c and irradiates light toward the storage room through the opening portion 1c (see Fig. 9) Is defined as a position where the light irradiation unit 33 is rotated at a rotation angle of about 90 占 from the first position so as to face the photocatalytic unit 35 and irradiate light toward the photocatalytic unit 35 (see Fig. 12).

The configuration and operation of the light irradiation unit 33, the photocatalytic unit 35 and the position adjustment unit 37 of the present embodiment are the same as those of the light irradiation unit 13, the photocatalytic unit 15, the position adjustment unit 27 ), So that a description thereof will be omitted here.

The refrigerator according to the present embodiment may further include a circulation fan 5 installed in the main body 1 to guide the air flow for introducing the air in the storage compartment to the side of the line holding device 30.

The circulation fan 5 is operated to suck air in the storage chamber and to discharge the air in the installation space in the lateral direction so that air in the storage chamber can be introduced into the side of the line holding device 30, And can be installed so as to be positioned at the center side of the region surrounded by the holding device 30. [

According to the present embodiment, a plurality of line retaining devices 30 are provided in the installation space of the main body 1, and a plurality of line retaining devices 30 are arranged so as to surround the circulating fan 5. [

A duct 2 is formed between the circulation fan 5 and each of the front retaining devices 30 so as to form a flow path between the circulating fan 5 and the front retaining device 30 .

An exhaust hole 1d for forming a passage through which the air having passed through the line holding device 30 can be discharged again into the storage chamber is passed through the inner case 1a at the outlet side of the flow path formed by the duct 2 .

As described above, the operation of the lead retaining device 30 installed in the main body 1 is controlled by the control section 3. [ The control unit 3 controls the operation of the line keeping apparatus 30 so that the position of the light irradiating unit 33 is selectively changed to the first position or the second position.

As an example, the control unit 3 can control the operation of the position adjusting unit 37 so that the position change of the light irradiating unit 33 is repeatedly performed with the passage of time.

According to this, the control unit 3 causes the light irradiation unit 33 to irradiate light toward the storage room in a state where the light irradiation unit 33 is located at the first position for a set time, And controls the operation of the line keeping device 30 so as to repeatedly irradiate light toward the photocatalyst section 35 for a predetermined period of time.

It is preferable that the operation of the control unit 3 is controlled in such a way that the door is closed.

The light emitted by the light irradiating unit 33 is irradiated through the opening 1c toward the storage compartment while the operation of the line keeping apparatus 30 is controlled so that the light irradiating unit 33 is located at the first position, In this way, the light irradiated toward the storage room can be combined with functions such as disinfection of the horticultural products stored in the storage room, decomposition of pesticide residues, induction of homicide, induction of photosynthesis and suppression of respiration.

10 to 12, in a state in which the operation of the line keeping device 30 is controlled so that the light irradiating portion 33 is located at the second position, the light emitted by the light irradiating portion 33 The light irradiated in this way causes a photocatalytic reaction for activating the surface of the photocatalyst 35 to remove the harmful components and food odor contained in the air introduced into the vicinity of the photocatalyst 35 It will happen.

At this time, the control unit 3 controls the operation of the position adjusting unit 37 so that the light irradiating unit 33 is located at the second position, and at the same time, the air flow from the storage room to the front retaining unit 30 is induced The operation of the fan 5 can be controlled.

Accordingly, the air in the storage compartment flows into the side of the line holding device 30 and is taken out and then discharged to the storage compartment. Thus, the deodorizing effect of the air in the storage compartment can be further improved.

As another example, the control unit 3 may control the operation of the position adjusting unit 37 so as to change the position of the light irradiating unit 33 in conjunction with whether the door is opened or closed.

The control unit 3 controls the operation of the position adjusting unit 37 so that the light irradiating unit 33 is located at the first position when the door is closed and when the door of the refrigerator is opened, The user who opens the door of the refrigerator can be prevented from being exposed to the light irradiated from the light irradiating unit 33 through the operation control for adjusting the operation of the position adjusting unit 37 to be located at the second position.

The control unit 3 controls the operation of the position adjusting unit 37 so that the light irradiating unit 33 is located at the second position while at the same time circulating the air stream from the storage room to the side of the leading- By controlling the operation of the fan 5, the deodorization of the air in the storage compartment can be made while the door is closed.

At this time, the information on the door opening or closing required for controlling the operation of the control unit 3 may be acquired through the sensing unit 7 for sensing the opening and closing of the door. The sensing unit 7 may be provided in various forms such as a touch sensor for sensing the contact between the main body 1 and the door, and a trigger switch provided on the main body 1 so as to be pressed by closing the door.

FIG. 13 is a bottom view showing a part of the interior of the refrigerator according to another embodiment of the present invention, and FIG. 14 is a view showing a state in which the inner case inside the refrigerator shown in FIG. 13 is removed. 15 is a bottom view showing a state in which light is irradiated toward the storage chamber, and FIG. 16 is a view showing a state in which the inner case inside the refrigerator shown in FIG. 15 is removed.

13 and 14, a refrigerator according to another embodiment of the present invention includes a main body 1, a door (not shown), and a lead retaining device 40.

According to this embodiment, the leading holding device 40 is provided in such a manner that the photocatalytic portion 45 is positioned at the center side and a plurality of light irradiating portions 33 are arranged so as to surround the photocatalytic portion 45.

The line holding device 40 thus provided may further include a light irradiating part 49 for irradiating the photocatalyst 45 with light.

A plurality of photocatalytic reaction light irradiating portions 49 are arranged so as to surround the photocatalyst portions 45 like the plurality of light irradiating portions 33 and are arranged so as to intersect the light irradiating portions 33, And is arranged so as to be disposed between the light irradiation portions 33.

The photocatalytic reaction light irradiating unit 49 installed in this manner is provided in a form including an ultraviolet ray having a peak wavelength in the near ultraviolet ray wavelength band and more specifically a second LED for emitting ultraviolet ray having a peak wavelength at 365 nm It is preferable that the deodorizing function through the photocatalytic reaction is performed by the light irradiated through the photocatalytic reaction light irradiating part 49. [

The photocatalytic reaction light irradiating unit 49 continuously maintains the state of irradiating the light toward the photocatalyst unit 45 differently from the light irradiating unit 33 provided to change the position to the first position or the second position. .

13 and 14, both the light irradiating portion 33 and the photocatalytic reaction light irradiating portion 49 are in a state of irradiating light toward the photocatalytic portion 45 in a state where the door is opened 15 and 16, in the closed state of the door, the light irradiating unit 33 irradiates light toward the storage room, and the light irradiation unit 49 for photocatalytic reaction continuously irradiates light toward the photocatalytic unit 45, As shown in FIG.

That is, the light is directed to the photocatalytic portion 45 in a state where the door is open, and also the irradiation of the light toward the photocatalytic portion 45 is continued by the photocatalytic reaction light irradiation portion 49 even in the state where the door is closed So that the deodorizing action against the air in the storage room can be continuously performed irrespective of the opening and closing of the door.

At this time, since irradiation of the light irradiated by the photocatalytic reaction light irradiating unit 49 is prevented from being exposed to the storage room from inside the installation space, there is little risk that the ultraviolet rays harmful to the human body are exposed to the user even when the door is opened.

Thus, the refrigerator of the present embodiment can provide an effect of further improving the deodorizing effect of the air in the storage room while reducing the risk of exposure to ultraviolet rays.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand. Accordingly, the true scope of protection of the present invention should be defined by the following claims.

1: Body
1a: inner case
1b: outer case
1c and 11a:
1d: exhaust hole
2: Duct
3:
5: Circulating fan
7:
10, 20, 30, 40:
11: Case
11b: Air hole
12: Air inlet
12a: first blocking wall
12b: second blocking wall
13, 33:
15, 35:
17, 27, 37:
17a, 27a:
49: Light irradiation part for photocatalytic reaction

Claims (20)

A case having a closed space formed therein;
A light irradiating unit installed inside the case to emit light;
A photocatalyst disposed inside the case and optically reacting with light emitted from the light irradiating unit; And
And a position adjusting section for changing a position of the light irradiating section to a first position for irradiating light toward the outside of the case or a second position for irradiating light toward the photocatalyst section.
The method according to claim 1,
Wherein the case is formed with an opening portion through which the closed space inside the case is opened to the outside of the case;
Wherein the light irradiation portion irradiates light from the first position toward the outside of the case through the opening portion.
[3] The apparatus of claim 2,
A moving part rotatably installed in the case and rotated to change the position of the light irradiation part to the first position or the second position; And
And a driving unit for rotating the moving unit.
The method of claim 3,
The moving part is provided in an arm shape in which the light irradiation part is provided on one side and the other side is rotatably coupled to the case, and the moving part is rotated around the other side to position the light irradiation part in the first position or the 2 position of the rod member.
The method of claim 3,
Wherein the moving part is provided in the form of a drum in which the light irradiating part is provided on the outer circumferential surface and the center part is rotatably coupled to the case, and the movable part is rotated about the center part, And a drum member for changing the position of the drum to the 2 position.
6. The method of claim 5,
Wherein the drum member is installed such that the opening portion is covered by a part of the outer circumferential surface of the drum member.
The method according to claim 1,
Wherein the photocatalyst portion comprises titanium oxide (TiO 2 ).
The method according to claim 1,
Wherein the light irradiating unit includes at least one of a first LED that emits ultraviolet rays having a peak wavelength in a wavelength band of a sterilizing region and a second LED that emits ultraviolet rays having a peak wavelength in a wavelength band of a near ultraviolet ray, Retaining device.
9. The method according to any one of claims 2 to 8,
The case is provided in the form of a housing having a front face, a back face, a side face, an upper face, and a bottom face;
Wherein the opening portion is formed on a bottom surface of the case, and at least one of the top surface, the side surface, and the rear surface is formed with an air hole for allowing air to flow in and out of the case.
10. The method of claim 9,
The front surface of the case is provided with an air flow path for blocking the light emitted by the light irradiating unit located at the second position from being exposed to the outside through the front surface of the case, Is formed on the outer peripheral surface of the guide portion.
9. The method according to any one of claims 2 to 8,
The case includes an inner case forming a wall surface so as to form a storage chamber on the inner side thereof and an outer case provided on the outer side of the inner case so as to form an installation space between the inner case and the inner case,
Wherein the opening portion is formed to penetrate the inner case so that the installation space is opened to the storage chamber side.
A main body including an inner case for forming a storage chamber on the inner side and an outer case provided on the outer side of the inner case so as to form an installation space outside the inner case;
A door installed in the main body to open and close the storage chamber; And
And a line holding device installed in the main body and irradiating light to the storage room or the installation space,
The line holding device includes:
A light irradiating unit provided outside the inner case to form a wall for forming a storage chamber on the inner side and irradiating light;
A photocatalyst disposed outside the inner case and optically reacting with light emitted from the light irradiating unit; And
And a position adjuster for changing a position of the light irradiating unit to a first position for irradiating light toward the storage chamber or a second position for irradiating light toward the photocatalyst unit.
13. The method of claim 12,
Further comprising a control unit for controlling an operation of the line keeping apparatus such that the position of the light irradiating unit is selectively changed to the first position or the second position.
14. The method of claim 13,
Wherein the control unit controls the operation of the position adjusting unit such that a positional change of the light irradiating unit is repeatedly performed according to a time.
14. The method of claim 13,
Wherein the control unit controls the operation of the position adjusting unit so that the position of the light irradiating unit changes in accordance with whether the door is opened or closed.
14. The method of claim 13,
Further comprising: a sensing unit for sensing whether the door is opened;
Wherein the control unit controls the operation of the position adjusting unit so that the light irradiating unit is located at the first position when the door is closed by the sensing unit and when the opening of the door is sensed by the sensing unit, And controls the operation of the position adjusting unit so that the irradiation unit is located at the second position.
14. The method of claim 13,
Wherein the light irradiation unit includes at least one of a first LED that emits an ultraviolet ray having a peak wavelength at a wavelength band of a sterilizing region and a second LED that emits an ultraviolet ray having a peak wavelength at a wavelength band of a near ultraviolet ray;
Wherein the control unit controls the operation of the light irradiation unit so that the lighting of at least one of the first LED and the second LED is continuously maintained regardless of whether the position of the light irradiation unit is changed or not.
18. The method according to any one of claims 12 to 17,
Further comprising: a circulation fan installed in the main body to guide an air flow for introducing the air in the storage chamber to the side of the line holding device;
And a plurality of the line holding devices are arranged to surround the circulation fan.
18. The method according to any one of claims 12 to 17,
Wherein the photocatalyst unit is disposed so that the photocatalyst unit is located at the center and a plurality of light irradiating units are disposed so as to surround the photocatalyst unit.
20. The method of claim 19,
Further comprising a photocatalytic reaction light irradiating unit installed to irradiate light toward the photocatalyst unit.
KR1020150136541A 2015-09-25 2015-09-25 Apparatus for maintaining freshness and refrigerator therewith KR20170037736A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019045148A1 (en) * 2017-08-31 2019-03-07 (주)썬웨이브 Led lighting device having freshness maintenance function
CN112284027A (en) * 2020-11-23 2021-01-29 珠海格力电器股份有限公司 Anti-aging structure of pesticide residue removing drawer, control method of anti-aging structure and refrigerator
IT202000018847A1 (en) * 2020-07-31 2022-01-31 Area Group S R L ULTRAVIOLET LIGHT SANITATION DEVICE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019045148A1 (en) * 2017-08-31 2019-03-07 (주)썬웨이브 Led lighting device having freshness maintenance function
IT202000018847A1 (en) * 2020-07-31 2022-01-31 Area Group S R L ULTRAVIOLET LIGHT SANITATION DEVICE
CN112284027A (en) * 2020-11-23 2021-01-29 珠海格力电器股份有限公司 Anti-aging structure of pesticide residue removing drawer, control method of anti-aging structure and refrigerator

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