WO2009132954A2 - A refrigerator - Google Patents
A refrigerator Download PDFInfo
- Publication number
- WO2009132954A2 WO2009132954A2 PCT/EP2009/054362 EP2009054362W WO2009132954A2 WO 2009132954 A2 WO2009132954 A2 WO 2009132954A2 EP 2009054362 W EP2009054362 W EP 2009054362W WO 2009132954 A2 WO2009132954 A2 WO 2009132954A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- container
- refrigerator
- led
- walls
- Prior art date
Links
Classifications
-
- 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
- F25D27/00—Lighting arrangements
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/005—Charging, supporting, and discharging the articles to be cooled using containers
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/021—Charging, supporting, and discharging the articles to be cooled by shelves combined with trays
Definitions
- the present invention relates to a refrigerator wherein the vegetable container is illuminated for keeping fresh the foodstuff stored therein.
- the foodstuffs such as vegetables and fruits stored in refrigerators for a long time are observed to lose their freshness with time.
- the researches have shown that some foods that are exposed to light, particularly like blue, orange and green colored lights of certain wavelengths, not only have a prolonged storage life, but also the vitamin values are increased and the colors are preserved.
- the substances such as the chlorophyll present in green leafed vegetables or the carotenoid in orange colored foods are sensible to light in certain wavelengths.
- various irradiation devices are emplaced in refrigerators for the light with certain colors to act on the foodstuffs. Accordingly, fruits and vegetables are maintained to sustain growth and keep their freshness for a longer period of time.
- the LED light engine is equipped with a light emitting diode (LED) light source and a light guide coupled to the LED light engine to bring light from the LED light engine into the compartment for illuminating the stored and exhibited contents inside the cold storage compartment.
- LED light emitting diode
- LED's is described. These LED's are turned on in suitable combinations to form the light in the wavelength required for each vegetable group.
- a drawer type receiving vessel is illuminated by an illuminating device that is disposed on the ceiling of the chamber.
- the wall of the receiving vessel is formed of a transparent or semi-transparent material.
- the aim of the present invention is the realization of a refrigerator illuminated by light in a wavelength for keeping the foods stored in the vegetable container fresh and the light to be delivered effectively to the foods.
- the refrigerator of the present invention comprises a container having more than one wall wherein foods such as fruits and vegetables are emplaced and a light source having a LED support plate and more than one LED for illuminating the container by light in a wavelength for preserving the nutritional values of the foods and at least two light guides, each extending into the container from a separate LED, surrounding the container walls and delivering the light received from the LEDs to different parts of the container interior from different directions thus providing an effective illumination.
- the container is effectively illuminated from below and above by two or more light guides integrated on the lower and upper walls of the container.
- the container is effectively illuminated from the right and left by two or more light guides integrated on the side walls of the container.
- the container is configured as a rectangular prism and light is delivered to all the walls by at least six light guides receiving light from at least six LEDs.
- the LEDs are arranged on the support plate in side by side or superposed arrays so that a planar area is covered thereon and the light guides receive light from the LEDs on the outer periphery.
- the refrigerator comprises more than one LED group on the light source, each radiating a different color light.
- the light guides receive light from the LEDs in the LED group that radiate light of colors selected according to the needs of the fruits and vegetables in the container.
- the refrigerator comprises a movement mechanism that moves the support plate, having LED groups thereon arranged side by side or superposed, upwards, downwards or sideways for aligning the LEDs of the desired color groups in the light source with the light guides.
- the refrigerator comprises a container produced of a transparent material and light guides made of a transparent material having a different refractive index than the container, integrated on the wall of the container by partially embedding from the outside, one end receiving the light emitted from the light source and delivering into the container from the other end, preventing the light from side-emitting in the direction of carrying the light and hence the light losses along the guided path.
- the light guide comprises a curvilinear first lateral surface that encircles the portion partially embedded in the container and a curvilinear second lateral surface that extends outside of the container in the opposite direction of the first lateral surface.
- the density of the material used for producing the light guide is more than the material used for producing the container and the refractive index of the light guide is greater than the refractive index of the container and preferably Polystyrene is used for the container material and preferably Polycarbonate for the light guide.
- the radius of curvature of the first lateral surface of the light guide embedded in the container wall is greater than the radius of curvature of PatXML 4/12 BB1296-7.730
- the light guide comprises a light entrance surface disposed on the end facing the light source, contacting with the outer surface of the LED when the container is pushed inside the refrigerator body, moving away from the LED when the container is pulled out.
- the outer surface of the LED is preferably semi spherical in shape and the light entrance surface is configured as a semi spherical recess.
- the light guide comprises a planar illumination surface on its end delivering light to the container.
- the light guide is produced by plastic injection over-molding method to be joined with the container emplaced in an injection mold.
- Figure 1 - is the schematic view of the vegetable container in a refrigerator of the prior art and the light source illuminating the container.
- Figure 2 - is the schematic view of a vegetable container in the position drawn out of the refrigerator body, the light guides disposed on the vegetable container and a light source.
- Figure 3 - is the schematic view of a vegetable container in the position pushed into the refrigerator body, the light guides on the vegetable container and a light source.
- Figure 4 - is the schematic view of a light source, a movement mechanism and the light guides.
- Figure 5 - is the cross sectional view of a container wall and the light guide integrated with the wall.
- the refrigerator (1) comprises a container (2) having more than one wall (3), disposed inside the body, for example in the cabin base region and wherein foods such as fruits and vegetables are stored, a light source (11) having more than one LED (Light Emitting Diode) (4) arranged on a support plate (P) for illuminating the container (2) with light in a wavelength that preserves the nutritional value of the foods for a long period of time.
- a light source (11) having more than one LED (Light Emitting Diode) (4) arranged on a support plate (P) for illuminating the container (2) with light in a wavelength that preserves the nutritional value of the foods for a long period of time.
- the refrigerator (1) of the present invention comprises at least two light guides (5) that are formed as rods and integrated to the walls (3). One end of the each of the light guides (5) is aligned with the LED (4) and the other end of the said light guide (5) is disposed on one of the walls (3).
- the light received from the LED (4) is delivered by the light guides (5) into the container (2) by the light guides (5) ends which are disposed on the wall (3), thus the light guides (5) illuminate the container (2) through at least two walls (3) ( Figures 2, 3).
- the light guides (5) are integrated on the outer surface of the walls (3) and surround the container (2) from the outside.
- Each of the light guides (5) receives light from only one LED (4).
- the LEDs (4) radiate light in a color determined with respect to the needs of the fruits-vegetables placed in the container (2), for example in red, orange, green or blue color, and the light guides (5) deliver the colored light emitted by the LEDs (4) from the point reached on the outer surfaces of the walls (3) intensively into the container (2) by their ends on the side of the wall (3), thus maintaining to sustain activities in the live cells of the fruits and vegetables in the container (2) and hence to keep fresh for a long period of time.
- the PatXML 6/12 BB1296-7.730 In the case the foods are placed one over the other in the container (2), even if one food remains in the shade of another, the PatXML 6/12 BB1296-7.730
- light guides (5) transmit the light from the walls (3) at different directions to the foods in the shade and the majority of the foods in the container benefit from the light.
- the container (2) is configured as a rectangular prism and comprises six walls (3), at the front, rear, top, bottom and two at the sides and light is delivered to all the walls (3) by at least six light guides (5) receiving light from at least six LEDs (4).
- the light source (11) is situated at the rear side of the inner refrigerator (1) body.
- the LEDs (4) are placed in side by side or superposed arrays covering a planar area on the support plate (P) ( Figure 3).
- the light guides (5) receiving light from the LEDs (4) arranged on the outer periphery of the planar surface on the support plate (P) carry light to the side, front and bottom walls (3) of the container (2) and the LEDs (4) remaining at the center of the planar surface illuminate the rear wall (3) of the container (2).
- the light guides (5) being connected with the LEDs (4) on the outer periphery of the planar surface on the support plate (P) do not intercept one another topological ⁇ from the light source (11) toward the container (2) walls (3).
- the refrigerator (1) comprises more than one LED (4) group (G) on the light source (11), each one emitting light of a different color, for example a blue LED (4) group (G), a red LED (4) group (G), etc. and a movement mechanism (6) that moves the support plate (P), having LED (4) groups (G) of different colors thereon arranged side by side or superposed, upwards, downwards or sideways for aligning the desired LED (4) group (G) at the light source (11) with the light guides (5) ( Figure 4).
- the light guides (5) receive light from the LEDs (4) in the LED (4) group (G) that emit light in the color selected according to the needs of the fruits and vegetables stored in the container (2).
- the blue LED (4) group (G) is emplaced on the right of the plate (P) and the red LED (4) group (G) on the left, and when the light guides (5) connected to the blue LED (4) group (G) is wanted to receive light from the red LED (4) group (G), the support plate (P) is moved from the left to the PatXML 7/12 BB1296-7.730
- the refrigerator (1) comprises a container (2) produced of a transparent material and light guides (5) made of a transparent material having a different refractive index (n2) from the refractive index (n1) of the material used to produce the container (2), integrated by partially embedding on the walls (3) and delivering light into the container (2) from its other end by preventing side-emitting along the path of delivery ( Figure 5).
- the light guide (5) comprises a curvilinear first lateral surface (7) that encircles the portion partially embedded in the container (2) and a curvilinear second lateral surface (8) that contacts with air outside the container (2) in the opposite direction of the first lateral surface (7) ( Figure 5).
- the light guide (5) prevents the light received from the light source (11) to be reflected from the first lateral surface (7) to the container (2) and to the air from the second lateral surface (8), in other words, the light guide (5) carries light virtually without loss along it, confining between the lateral surfaces (7, 8) and maintains the container (2) to be illuminated extensively from its end whereto the light reaches.
- the radius of curvature (R1 ) of the first lateral surface (7) and the radius of curvature (R2) of the second lateral surface (8) are calculated with respect to the wavelength of the light used and the refractive indexes (n1 , n2) of the container (2) and the light guide (5).
- the density of the material used for producing the light guide (5) is more than the material used for producing the container (2) and the refractive index (n2) of the light guide (5) is greater than the refractive index (n1)of the container (2) (n2>n1).
- the radius of curvature (R1 ) of the first lateral surface (7) of the light guide (5) is greater than the radius of curvature (R2) of the second lateral surface (8) extending outside the container (2) wall (3) (R1 > R2) ( Figure 5).
- the container (2) is produced of Polystyrene (PS) and the light guide (5) is produced of Polycarbonate (PC).
- PS Polystyrene
- PC Polycarbonate
- the light guide (5) being integrated with the container (2), moves together with the container (2) and comprises a light entrance surface (9) disposed on its end facing the light source (11), contacting with the outer surface of the LED (4) when the container (2) is pushed inside the refrigerator (1) body, moving away from the LED (4) when the container (2) is pulled out ( Figures 2, 3, 4).
- the outer surface of the LED (4) is for example semi spherical in shape and the light entrance surface (9) is configured as a semi spherical recess matching with the outer surface of the LED (4).
- the light guide (5) furthermore comprises a planar illumination surface (10) on its end delivering light to the container (2) in contact with the wall (3) ( Figures 2, 3, 4).
- the light carried by the light guide (5) does not pass into the wall (3) from the convex shaped first lateral surface (7) embedded in the walls (3) of the container (2) and moves along its path reaching the illumination surface (10).
- the illumination surface (10) since structured planar, does not reflect light backward and aids the light to pass into the container (2).
- the light guide (5) is produced by joining with the container (2) emplaced in an injection mold by plastic injection over-molding method.
- the container (2) is produced with the channels open, wherein the light guide (5) will be partially embedded, afterwards is emplaced in the plastic injection mold and the light guide (5) is injected over it. Since the process temperature of the light guide (5) material is higher than the process temperature of the container (2) material, the channels wherein the light guide (5) will be injected are slightly melted by heating beforehand to near the melting point and afterwards the light guide (5) is injected into the channels.
- the light guides (5) that carry PatXML 9/12 BB1296-7.730 carry PatXML 9/12 BB1296-7.730
- the light in the desired wavelength is sent into the container (2) from a single point without loss. Intensive light is sent upon the foods in the container (2) that need light of a certain wavelength and thus the foods in the container (2) can be kept fresh for a prolonged time.
- the light emitted from the LEDs (4) at the light source (11) is delivered to all the container (2) walls (3) separately by means of the light guides (5), an effective illumination ensures to deliver light to the foods that are below other foods or at the rear and in the shadow thereby the freshness of the foodstuffs stored in the container (2) can be prolonged.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09737998T ES2379509T3 (es) | 2008-05-02 | 2009-04-13 | Frigorífico |
AT09737998T ATE544996T1 (de) | 2008-05-02 | 2009-04-13 | Kühlvorrichtung |
EP09737998A EP2283291B9 (de) | 2008-05-02 | 2009-04-13 | Kühlvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TRA2008/03073 | 2008-05-02 | ||
TR200803073 | 2008-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009132954A2 true WO2009132954A2 (en) | 2009-11-05 |
WO2009132954A3 WO2009132954A3 (en) | 2009-12-23 |
Family
ID=41134638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/054362 WO2009132954A2 (en) | 2008-05-02 | 2009-04-13 | A refrigerator |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2283291B9 (de) |
AT (1) | ATE544996T1 (de) |
ES (1) | ES2379509T3 (de) |
WO (1) | WO2009132954A2 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2400225A1 (de) * | 2010-06-26 | 2011-12-28 | Electrolux Home Products Corporation N.V. | Ofenmuffel mit Beleuchtungsvorrichtung |
WO2011124448A3 (de) * | 2010-04-09 | 2012-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit beleuchtungseinrichtung |
WO2013120759A1 (de) * | 2012-02-16 | 2013-08-22 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit indirekter kühlkammerbeleuchtung |
WO2013126961A1 (en) * | 2012-03-02 | 2013-09-06 | Electrolux Home Products Pty Limited | A light treatment apparatus assisting with preservation of food in appliances |
EP2778585A3 (de) * | 2013-03-15 | 2015-08-26 | Whirlpool Corporation | Verfahren und Vorrichtung zur Beleuchtung in Kühlschränken |
WO2018100043A1 (de) * | 2016-11-30 | 2018-06-07 | Liebherr-Hausgeräte Ochsenhausen GmbH | Kühl- und/oder gefriergerät |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004100684A1 (en) * | 2003-05-16 | 2004-11-25 | 6231934 Canada Inc. | Method and apparatus for storing produce |
EP1630500A2 (de) * | 2004-08-26 | 2006-03-01 | Samsung Electronics Co., Ltd. | Kühlschrank |
WO2007049937A2 (en) * | 2005-10-27 | 2007-05-03 | Lg Electronics Inc. | Refrigerator |
WO2007049935A2 (en) * | 2005-10-27 | 2007-05-03 | Lg Electronics Inc. | Refrigerator |
WO2007125122A1 (en) * | 2006-05-01 | 2007-11-08 | Arcelik Anonim Sirketi | A refrigerator |
WO2007136171A1 (en) * | 2006-05-24 | 2007-11-29 | Daewoo Electronics Corporation | Refrigerator having a vegetable box |
-
2009
- 2009-04-13 ES ES09737998T patent/ES2379509T3/es active Active
- 2009-04-13 WO PCT/EP2009/054362 patent/WO2009132954A2/en active Application Filing
- 2009-04-13 AT AT09737998T patent/ATE544996T1/de active
- 2009-04-13 EP EP09737998A patent/EP2283291B9/de not_active Not-in-force
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004100684A1 (en) * | 2003-05-16 | 2004-11-25 | 6231934 Canada Inc. | Method and apparatus for storing produce |
EP1630500A2 (de) * | 2004-08-26 | 2006-03-01 | Samsung Electronics Co., Ltd. | Kühlschrank |
WO2007049937A2 (en) * | 2005-10-27 | 2007-05-03 | Lg Electronics Inc. | Refrigerator |
WO2007049935A2 (en) * | 2005-10-27 | 2007-05-03 | Lg Electronics Inc. | Refrigerator |
WO2007125122A1 (en) * | 2006-05-01 | 2007-11-08 | Arcelik Anonim Sirketi | A refrigerator |
WO2007136171A1 (en) * | 2006-05-24 | 2007-11-29 | Daewoo Electronics Corporation | Refrigerator having a vegetable box |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011124448A3 (de) * | 2010-04-09 | 2012-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit beleuchtungseinrichtung |
CN102834683A (zh) * | 2010-04-09 | 2012-12-19 | Bsh博世和西门子家用电器有限公司 | 具有照明装置的致冷设备 |
WO2011160761A3 (en) * | 2010-06-26 | 2012-02-23 | Electrolux Home Products Corporation N.V. | Oven muffle and oven |
EP2400225A1 (de) * | 2010-06-26 | 2011-12-28 | Electrolux Home Products Corporation N.V. | Ofenmuffel mit Beleuchtungsvorrichtung |
US9091447B2 (en) | 2010-06-26 | 2015-07-28 | Electrolux Home Products Corporation N.V. | Oven muffle and oven |
US20150247634A1 (en) * | 2012-02-16 | 2015-09-03 | Bsh Bosch Und Siemens Hausgerate Gmbh | Refrigeration appliance with indirect cooling-chamber illumination |
WO2013120759A1 (de) * | 2012-02-16 | 2013-08-22 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit indirekter kühlkammerbeleuchtung |
CN104114966A (zh) * | 2012-02-16 | 2014-10-22 | Bsh博世和西门子家用电器有限公司 | 具有间接的冷却室照明的制冷器具 |
US9671104B2 (en) | 2012-02-16 | 2017-06-06 | BSH Hausgeräte GmbH | Refrigeration appliance with indirect cooling-chamber illumination |
CN104114966B (zh) * | 2012-02-16 | 2016-10-26 | Bsh家用电器有限公司 | 具有间接的冷却室照明的制冷器具 |
WO2013126961A1 (en) * | 2012-03-02 | 2013-09-06 | Electrolux Home Products Pty Limited | A light treatment apparatus assisting with preservation of food in appliances |
CN104284604A (zh) * | 2012-03-02 | 2015-01-14 | 伊莱克斯家用产品有限公司 | 家电中帮助保存食物的一种光照处理器件 |
CN104284604B (zh) * | 2012-03-02 | 2023-01-03 | 伊莱克斯家用产品有限公司 | 家电中帮助保存食物的一种光照处理器件 |
US9377578B2 (en) | 2013-03-15 | 2016-06-28 | Whirlpool Corporation | Methods and apparatus to provide lighting in refrigerators |
EP2778585A3 (de) * | 2013-03-15 | 2015-08-26 | Whirlpool Corporation | Verfahren und Vorrichtung zur Beleuchtung in Kühlschränken |
US10126491B2 (en) | 2013-03-15 | 2018-11-13 | Whirlpool Corporation | Methods and apparatus to provide lighting in refrigerators |
WO2018100043A1 (de) * | 2016-11-30 | 2018-06-07 | Liebherr-Hausgeräte Ochsenhausen GmbH | Kühl- und/oder gefriergerät |
CN110036251A (zh) * | 2016-11-30 | 2019-07-19 | 利勃海尔-家用电器奥克森豪森有限责任公司 | 冷藏和/或冷冻装置 |
RU2731722C1 (ru) * | 2016-11-30 | 2020-09-08 | Либхерр-Хаусгерете Охзенхаузен Гмбх | Холодильный и/или морозильный аппарат |
US10823494B2 (en) | 2016-11-30 | 2020-11-03 | Liebherr-Hausgeräte Ochsenhausen GmbH | Refrigerating and/or freezing device |
Also Published As
Publication number | Publication date |
---|---|
WO2009132954A3 (en) | 2009-12-23 |
ATE544996T1 (de) | 2012-02-15 |
EP2283291B9 (de) | 2012-06-20 |
EP2283291B1 (de) | 2012-02-08 |
ES2379509T3 (es) | 2012-04-26 |
EP2283291A2 (de) | 2011-02-16 |
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