WO2008119807A2 - A cooling device - Google Patents

A cooling device Download PDF

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Publication number
WO2008119807A2
WO2008119807A2 PCT/EP2008/053897 EP2008053897W WO2008119807A2 WO 2008119807 A2 WO2008119807 A2 WO 2008119807A2 EP 2008053897 W EP2008053897 W EP 2008053897W WO 2008119807 A2 WO2008119807 A2 WO 2008119807A2
Authority
WO
WIPO (PCT)
Prior art keywords
light
door
change
cooling device
control unit
Prior art date
Application number
PCT/EP2008/053897
Other languages
French (fr)
Other versions
WO2008119807A3 (en
Inventor
Emre Arisoy
Ferkan Gulbas
Cengiz Gezer
Erhan Bayram
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2008119807A2 publication Critical patent/WO2008119807A2/en
Publication of WO2008119807A3 publication Critical patent/WO2008119807A3/en

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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the present invention relates to a cooling device of which the interior illumination is controlled.
  • a refrigerator In state of the art international patent application no WO2005108889, a refrigerator is described that comprises a light sensor which detects the open or closed state of the door and a light source which opens or closes based on the state of the door.
  • the aim of the present invention is the realization of a cooling device wherein the interior illumination can be switched on or off only when required.
  • the position of the door is detected by a photodiode emplaced at the interior of the cooling device and the interior light source is either switched off or on depending on the position of the door.
  • the change of rate in the quantity of light is calculated by the control unit and compared with the values entered in the memory by the producer.
  • the quantity of light that is falling on the sensor when the door is opened depends on the speed of opening the door and increases relatively slowly. Therefore, the rate of change in the measured quantity of light remains within the range of recorded values and the light source is switched on when the change in position of the door is detected by the control unit.
  • the position of the door can be exactly detected by taking into consideration the quantity of light intensity and the change in the quantity of light intensity.
  • the light source when the door is opened while the surroundings is illuminated or very bright, the light source illuminates less by adjusting according to the quantity of light in the surroundings or can be completely turned off depending on the desire of PatXML 3/6 BB1003-7.596
  • FIG. 1 is the schematic view of the cooling device of the present invention.
  • Figure 2 - is the graphics showing the change in terms of time in the surroundings, door, photodiode and the light source with respect to each other.
  • the cooling device (1) comprises a body (2), a door (3) providing access to inside of the body (2), at least one photodiode (4) placed inside the body (2) that detects the position of the door (3) and the quantity of light depending on the change in the quantity of light falling thereon, at least one light source (5) that illuminates the interior of the body (2) and is switched on or off depending on the position of the door (3) and at least one control unit (6) that compares the change in the light intensity falling on the photodiode (4) with respect to time with the values recorded in the memory of the control unit (6) by the producer for switching on or off of the light source (5).
  • the values relating to detecting the changes in the position of the door (3) and the quantity of light in the outside surrounding and respectively the change duration in the position of the door (3) (CDPD) for switching on or off the light source (5) under different conditions and the changes in the quantity of light intensity (CQLI) during this duration are recorded in the control unit (6) by the PatXML 4/6 BB1003-7.596
  • the rates of CDPD and CQLI data in the control unit (6) give the change rate in quantity of light as the door (3) opens/closes.
  • the rate of the quantity of light change duration falling on the photodiode (4) to the quantity of light is calculated by the control unit (6) and compared with the values recorded by the producer for detecting the position of the door (3). If the rate of the quantity of light change duration (Y) detected by the photodiode (4) to the quantity of light (X) falling on the sensor is;
  • the photodiode (4) is switched on periodically with an intensity and duration that cannot be detected with the human eye for detecting the position of the door (3) and the change in quantity of light is measured.
  • the measured change and duration is compared by the control unit (6) with the values entered into the memory by the producer for detecting the position of the door (3) and the light source (5) is switched on or off depending on the position of the door (3).
  • the sudden changes in outside quantity of light are not detected as changes in the position of the door (3), but as an increase or decrease in the quantity of light and thus the light source (5) is switched on as required.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Projection Apparatus (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The present invention relates to a cooling device (1) wherein the position of the door (3) is detected by using a sensor and the interior light is switched on or off.

Description

PatXML 1/6 BB1003-7.596
Description
A COOLING DEVICE
[0001] The present invention relates to a cooling device of which the interior illumination is controlled.
[0002] In state of the art, in cooling devices in order to know that the door is opened, mechanical systems or sensors are used. In mechanical systems, a switch opens or closes the circuit depending on the position of the door and thus the interior illumination of the cooling device is turned on or off. In non-mechanical systems sensors are disposed in the interior compartment of the refrigerator at defined intervals for detecting the ambient light intensity. When the ambient light quantity increases, the sensors decide that the door is opened and turn on the cooling device interior light. When the ambient light decreases, the lamp is turned off deciding that the door is closed.
[0003] In state of the art International Patent No WO0065882, a lamp in refrigerators and cold rooms and a new device that senses when the door is open or closed is described. The said device switches off the lamp if the light detected is low deciding that the door is closed.
[0004] In state of the art international patent application no WO2005108889, a refrigerator is described that comprises a light sensor which detects the open or closed state of the door and a light source which opens or closes based on the state of the door.
[0005] The aim of the present invention is the realization of a cooling device wherein the interior illumination can be switched on or off only when required.
[0006] The cooling device realized in order to attain the aim of the present invention is explicated in the claims.
[0007] In the cooling device of the present invention, the position of the door is detected by a photodiode emplaced at the interior of the cooling device and the interior light source is either switched off or on depending on the position of the door.
[0008] In the embodiment of the cooling device of the present invention, when the door is opened while the surroundings is lighted, the quantity of light that is PatXML 2/6 BB1003-7.596
falling on the sensor is measured, the change of rate in the quantity of light is calculated by the control unit and compared with the values entered in the memory by the producer. The quantity of light that is falling on the sensor when the door is opened depends on the speed of opening the door and increases relatively slowly. Therefore, the rate of change in the measured quantity of light remains within the range of recorded values and the light source is switched on when the change in position of the door is detected by the control unit.
[0009] When the light of the outer surroundings is suddenly turned off while the door is open, the quantity of light detected by the sensor drops suddenly; however, the light source continues to be switched on by detecting that there is no change in the position of the door, and that only the quantity of light in the surroundings is reduced, since the rate of change in the quantity of light is smaller than the recorded values, the rate of change in the quantity of light values that may be observed while closing the door.
[0010] When the door is opened while the surroundings is dark, the quantity of light that falls on the sensor is reduced because of the light that bleeds to the outside, however since the reduction in quantity of light and the change duration in reduction of light quantity, that is the change rate in quantity of light is within the range of recorded values, it is understood that the door has changed position, that it is opened since it was closed previously and the light source is switched on. In this embodiment, although both measurements of light intensity before and after the door is opened gives the result that the surroundings is dark, that is the door is closed, it is decided that the door is opened since the change rate in quantity of light is greater than the limit values.
[0011] In the cooling device of the present invention, the position of the door can be exactly detected by taking into consideration the quantity of light intensity and the change in the quantity of light intensity.
[0012] In another embodiment of the present invention, when the door is opened while the surroundings is illuminated or very bright, the light source illuminates less by adjusting according to the quantity of light in the surroundings or can be completely turned off depending on the desire of PatXML 3/6 BB1003-7.596
the user, when the surrounding is illuminated. The light source can illuminate with more intensity when the surrounding is dark or when the outer surrounding suddenly grows dark. [0013] The cooling device realized in order to attain the aim of the present invention is illustrated in the attached figures, where: [0014] Figure 1 - is the schematic view of the cooling device of the present invention. [0015] Figure 2 - is the graphics showing the change in terms of time in the surroundings, door, photodiode and the light source with respect to each other. [0016] The elements illustrated in the figures are numbered as follows:
1. Cooling device
2. Body
3. Door
4. Photodiode
5. Light Source
6. Control unit
[0017] The cooling device (1) comprises a body (2), a door (3) providing access to inside of the body (2), at least one photodiode (4) placed inside the body (2) that detects the position of the door (3) and the quantity of light depending on the change in the quantity of light falling thereon, at least one light source (5) that illuminates the interior of the body (2) and is switched on or off depending on the position of the door (3) and at least one control unit (6) that compares the change in the light intensity falling on the photodiode (4) with respect to time with the values recorded in the memory of the control unit (6) by the producer for switching on or off of the light source (5).
[0018] In the cooling device (1) of the present invention, the values relating to detecting the changes in the position of the door (3) and the quantity of light in the outside surrounding and respectively the change duration in the position of the door (3) (CDPD) for switching on or off the light source (5) under different conditions and the changes in the quantity of light intensity (CQLI) during this duration are recorded in the control unit (6) by the PatXML 4/6 BB1003-7.596
producer. These conditions can be opening/closing the door (3) fast/slowly, the sudden increase/decrease in the quantity of light in the outside surroundings etc. The rates of CDPD and CQLI data in the control unit (6) give the change rate in quantity of light as the door (3) opens/closes.
[0019] In the cooling device (1) of the present invention, the rate of the quantity of light change duration falling on the photodiode (4) to the quantity of light is calculated by the control unit (6) and compared with the values recorded by the producer for detecting the position of the door (3). If the rate of the quantity of light change duration (Y) detected by the photodiode (4) to the quantity of light (X) falling on the sensor is;
[0020] If the change rate in quantity of light (X/Y) remains within the observable limit change rate values while the door (3) is opened/closed, then the control unit (6) detects that the door (3) has changed position and the light source (5) is either switched on or off.
[0021] When the door (3) starts to open while the outside surrounding of the cooling device (1) is illuminated, there is a gradual increase in the quantity of light measured by the photodiode (4). If the change rate in light intensity calculated by the control unit (6) according to the duration and change of quantity in intensity of light measured by the photodiode (4) remains within the limit change rate values in the control unit (6), then the light source (5) is switched on detecting that the door (3) is opened.
[0022] When the light in the outside surrounding is suddenly turned off while the door (3) is open, a sudden decrease in the quantity of light is detected by the photodiode (4). The control unit (6) detects that change rate in light intensity is smaller than the limit change rate values in the control unit (6) and in this event the light source (5) continues to illuminate.
[0023] When the door (3) is closed while the outside surrounding is in darkness, there is a decrease in the quantity of light intensity detected by the photodiode (4). The calculated change rate in light intensity remains within the limit change rate values in the control unit (6), the control unit (6) detects that the door (3) has changed position and the light source (5) is switched off. PatXML 5/6 BB1003-7.596
[0024] When the outside surrounding is in darkness while the door (3) is opened, the value received from the photodiode (4) decreases gradually due to the light bleeding outside. The change of rate in the quantity of light remains within the limit change rate values in the control unit (6), and the light source (5) is switched on by detecting that the door (3) is opened. When the light in the outside surrounding is suddenly turned on while the door (3) is open, the quantity of light intensity detected by the photodiode (4) suddenly increases. (B) Since the measured quantity of light intensity and the calculated change rate in light intensity with respect to time is smaller than the limit change rate values in the control unit (6), the control unit (6) detects that there is no change in the door (3) position and the light source (5) continues to give off light.
[0025] When the door (3) is closed while the outside surrounding is illuminated, the quantity of light detected by the photodiode (4) decreases. Since the calculated change rate in quantity of light intensity remains within the recorded values, the control unit (6) detects that the door (3) has changed position and as a result the light source (5) is switched off.
[0026] In the cooling device (1) of the present invention, the photodiode (4) is switched on periodically with an intensity and duration that cannot be detected with the human eye for detecting the position of the door (3) and the change in quantity of light is measured. The measured change and duration is compared by the control unit (6) with the values entered into the memory by the producer for detecting the position of the door (3) and the light source (5) is switched on or off depending on the position of the door (3). The sudden changes in outside quantity of light are not detected as changes in the position of the door (3), but as an increase or decrease in the quantity of light and thus the light source (5) is switched on as required.

Claims

PatXML 6/6 BB1003-7.596Claims
1. A cooling device (1) that comprises a body (2), a door (3) providing access inside the body (2), at least one photodiode (4) placed inside the body (2) that detects the position of the door (3) and the quantity of light depending on the change in the quantity of light falling thereon, at least one light source (5) that illuminates the interior of the body (2) and is switched on or off depending on the position of the door (3) and characterized by at least one control unit (6) that compares the change in the light intensity falling on the photodiode (4) with respect to time with the data recorded in the memory thereof by the producer for switching on or off of the light source (5).
2. A cooling device (1) as in Claim 1 , characterized by a control unit (6) wherein the data relating to limits in the rate of the change duration in the position of the door (3) (CDPD) that gives the change rate in quantity of light and the changes in the quantity of light intensity (CQLI) are recorded and the light source (5) is switched on or off by comparing these limit values.
3. A cooling device (1) as in Claim 1 , characterized by a control unit (6) that provides the light source (5) to remain switched on by determining the change rate in light intensity detected by the photodiode (4) is smaller than the limit change rate values when the light in the outside surrounding is suddenly turned off while the door (3) is open.
4. A cooling device (1) as in Claim 1 , characterized by a control unit (6) that calculates the change rate in light intensity by detecting the change duration and quantity of light that falls on the photodiode (4) when the light in the outside surrounding is suddenly turned on while the door (3) is open, and upon detecting that it is smaller than the recorded value thus there is no change in the position of the door (3) thereby provides the light source (5) to remain switched on.
PCT/EP2008/053897 2007-04-02 2008-04-02 A cooling device WO2008119807A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200702161 2007-04-02
TRTR2007/02161 2007-04-02

Publications (2)

Publication Number Publication Date
WO2008119807A2 true WO2008119807A2 (en) 2008-10-09
WO2008119807A3 WO2008119807A3 (en) 2009-03-05

Family

ID=39808750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/053897 WO2008119807A2 (en) 2007-04-02 2008-04-02 A cooling device

Country Status (2)

Country Link
TR (1) TR200906616T1 (en)
WO (1) WO2008119807A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013045954A1 (en) * 2011-10-01 2013-04-04 Peter Jeffrey Young Detection device
CN113494810A (en) * 2020-04-01 2021-10-12 青岛海尔电冰箱有限公司 Refrigerating and freezing device and illumination control method thereof
DE102022200425A1 (en) 2022-01-17 2023-07-20 BSH Hausgeräte GmbH Home appliance and method for detecting an open door

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000065882A1 (en) * 1999-04-21 2000-11-02 Giorgio Stella Device for the automatic switching on of the light without mechanical contact in refrigerators and cold rooms
WO2003010474A1 (en) * 2001-07-25 2003-02-06 BSH Bosch und Siemens Hausgeräte GmbH Refrigerator with interior lighting
KR20030075536A (en) * 2002-03-19 2003-09-26 주식회사 엘지이아이 Lamp lighting apparatus and method for refrigerator
WO2005108889A1 (en) * 2004-05-04 2005-11-17 BSH Bosch und Siemens Hausgeräte GmbH Household appliance comprising an interior light, and lighting subunit therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000065882A1 (en) * 1999-04-21 2000-11-02 Giorgio Stella Device for the automatic switching on of the light without mechanical contact in refrigerators and cold rooms
WO2003010474A1 (en) * 2001-07-25 2003-02-06 BSH Bosch und Siemens Hausgeräte GmbH Refrigerator with interior lighting
KR20030075536A (en) * 2002-03-19 2003-09-26 주식회사 엘지이아이 Lamp lighting apparatus and method for refrigerator
WO2005108889A1 (en) * 2004-05-04 2005-11-17 BSH Bosch und Siemens Hausgeräte GmbH Household appliance comprising an interior light, and lighting subunit therefor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013045954A1 (en) * 2011-10-01 2013-04-04 Peter Jeffrey Young Detection device
GB2495391B (en) * 2011-10-01 2015-12-16 Peter Jeffrey Young Detection device
US9454883B2 (en) 2011-10-01 2016-09-27 Peter Jeffrey Young Detection device
EP3435343A1 (en) * 2011-10-01 2019-01-30 Peter Jeffrey Young Detection device
US10546473B2 (en) 2011-10-01 2020-01-28 Peter Jeffrey Young Detection device
CN113494810A (en) * 2020-04-01 2021-10-12 青岛海尔电冰箱有限公司 Refrigerating and freezing device and illumination control method thereof
DE102022200425A1 (en) 2022-01-17 2023-07-20 BSH Hausgeräte GmbH Home appliance and method for detecting an open door

Also Published As

Publication number Publication date
TR200906616T1 (en) 2010-03-22
WO2008119807A3 (en) 2009-03-05

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