WO2005108889A1 - Haushaltsgerät mit innenraumbeleuchtung und beleuchtungsbaugruppe dafür - Google Patents
Haushaltsgerät mit innenraumbeleuchtung und beleuchtungsbaugruppe dafür Download PDFInfo
- Publication number
- WO2005108889A1 WO2005108889A1 PCT/EP2005/051977 EP2005051977W WO2005108889A1 WO 2005108889 A1 WO2005108889 A1 WO 2005108889A1 EP 2005051977 W EP2005051977 W EP 2005051977W WO 2005108889 A1 WO2005108889 A1 WO 2005108889A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- door
- light source
- household appliance
- sensor
- 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
- F25D27/005—Lighting arrangements combined with control means
-
- 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
Definitions
- the present invention relates to a cabinet or chest-like household appliance, in particular a refrigerator, with interior lighting and a lighting assembly for such a household appliance.
- the interior lighting of a refrigerator such as a refrigerator, freezer or freezer is controlled by a mechanical switch that is embedded in the body of the device on its open side to be actuated by opening or shooting the device door or flap to become and so a light source in the interior of the device automatically when opening the door and off when you close it.
- the need to attach the switch or at least a slide to actuate it on the door-facing open side of the body, while the light source is advantageously placed deeper in the interior of the household appliance, requires a spatial separation of the switch and light source, so that both have to be assembled in separate work steps with a correspondingly high amount of work.
- the object of the present invention is to provide a household appliance and a lighting module for a household appliance which remedy the disadvantages mentioned above.
- a light sensor such as. B. a photodiode or a phototransistor for setting the operating state of the light source for illuminating the interior, as defined in claim 1, allows the complete absence of moving parts. The control of the interior lighting is therefore practically wear and maintenance free.
- the light sensor is arranged in the interior of the household appliance, so that it is inevitably cut off from the ambient light when the door is closed. Since such a light sensor is not necessarily cut off from the light generated by the light source itself, a timer is expediently provided for switching off the light source after a predetermined operating time. When this timer becomes effective with the door closed, the light sensor stops receiving light and the light source remains off.
- the light sensor can be arranged such that it is cut off from the light of the light source when the door is closed. In this case, a timer for switching the light source off is not required.
- a delay element can be provided for delayed switching of the interior lighting after detection of a change in the state of the door, so that a user can observe the switching process and can ensure that the interior lighting is not constantly switched on.
- the household appliance can also be equipped with an operating mode selector switch which allows switching between automatic control of the light source by the light sensor and at least one further operating mode in which the light source is switched on or off independently of the light detected by the light sensor is. This may be desirable if the ambient light in the surroundings of the household appliance is so strong that additional lighting of the interior is not necessary, or if the door of the household appliance is opened in the dark and the light sensor does not respond.
- the present invention therefore also relates to a lighting module for a household appliance with a light source and a light sensor, which is set up to switch on the light source when it detects light.
- a timer for switching the light source off again after a predetermined switch-on time is preferably also part of the lighting assembly.
- Fig. 1 is a schematic view of a household appliance according to a first embodiment of the invention
- FIG. 2 is a block diagram of the lighting assembly of the household appliance from FIG. 1;
- FIG. 3 is a perspective view of a household appliance according to a second embodiment of the invention.
- FIG. 4 shows a block diagram of a modified embodiment of the lighting assembly.
- FIG. 5 shows a block diagram of a further embodiment of the lighting assembly.
- Fig. 1 shows a perspective view of a refrigerator as an example of a household appliance according to the invention with body 1, the body 1 hinged door 2 and interior 3.
- a lighting assembly 4 On a side wall of the interior 3 there is a lighting assembly 4.
- a rear part of the Module 4 with a transparent screen 5 covers a light source; a light sensor is housed in an opaque housing part 6, to which a light guide is connected.
- the light guide 7 extends along the wall of the interior 3 to an inlet window 8 on the front of the body 1, which is covered in a light-tight manner by a magnetic sealing profile 9 carried by the door 2 when the door is closed. Ambient light can only reach the light sensor if the magnetic sealing profile 9 lifts off the inlet window 8 when the door 2 is opened.
- the light guide 7 is shown in dashed lines in the figure, since it is covered on its section extending along the inner wall by a light-tight adhesive strip 11.
- FIG. 2 shows in a block diagram components of the lighting assembly 4. These are a photodiode 12 at which the light guide 7 ends, a capacitor 13, the light source 14, connected in series with the photodiode 12 between two terminals of a DC supply voltage with it connected in series transistor 15 or equivalent power switch and a resistor 16 which connects a control input of transistor 15 to a connection point between photodiode 12 and capacitor 13.
- the capacitor 13 is dead and the transistor 15 blocks.
- the light source 14 is switched off.
- the capacitor 13 discharges via the transistor 15, so that the latter blocks after a short delay and switches off the light source 14.
- FIG. 3 shows a perspective view of a second embodiment of the household appliance. It differs from that of FIG. 1 in that the photodiode 12 does not receive light via the light guide 7, but rather through a window 17, which is in the opaque housing part 6 on its side facing away from the screen 5 and the Door opening facing side is formed. 3, the lighting module 4 is arranged in the immediate vicinity of the closed door 2, so that the door 2 shields the window 17 from light from the light source 14 in the closed state, the inner structure shown in FIG Lighting assembly 4 is also suitable in this embodiment.
- FIG. 4 the structure shown in FIG. 4 is preferred, in which circuit components which have already been explained with reference to FIG. 2 are designated by the same reference numerals.
- a time switching element 18 is connected here between the center point between the photodiode 12 and the capacitor 13 on the one hand and the control input of the transistor 15 on the other hand.
- a second transistor 19 is arranged in parallel with the capacitor 13 and its base is connected to the collector of the transistor 15 via a capacitor 21.
- a mode selector switch 20 has three switch positions, a position a in which it connects the emitter of transistor 15 to ground potential, an unconnected switch position b and a switch position c in which it connects the collector of transistor 13 to ground.
- the photodiode 12 As long as the cooling cabinet door 2 is closed and the light source 14 is off, that is to say the photodiode 12 is not receiving any light, it blocks it, and ground potential is present at the input of the time switching element 18. Accordingly, the output of the timer and thus the base of the transistor 15 is at ground, it blocks, and in the position a of the mode selector switch 20 shown, the light source 14 thus remains switched off.
- the time switching element 18 again provides ground potential at its output, the transistor 15 returns to the blocking state, and the light source 14 is switched off.
- the potential at the collector of transistor 15 thus rises abruptly to the value of the supply voltage, and a positive voltage pulse reaches transistor 19 via capacitor 21, so that it becomes conductive for a short time and short-circuits capacitor 13.
- the input signal of the timer 18 is thus pulled to ground.
- the transistor 19 begins to block again. If at this point in time the door 2 is still open and ambient light falls on the photodiode 12, the timer 18 is triggered again after a slight delay. That is, as long as the door 2 is open and ambient light falls on the photodiode 12, the works Light source 14 continuously with short interruptions. These interruptions remind a user that the door 2 should be closed again in order to avoid unnecessary cold losses.
- a similar behavior can be implemented with the circuit shown as a block diagram in FIG. 5.
- the capacitor 13 is replaced here by a resistor 22, a series resistor 23 is inserted between the photodiode and the positive supply potential, and the collector of the transistor 19 is not connected to the input of the timing switch 18, but to the center point between the series resistor 23 and Photo diode 12.
- the incidence of light on the photodiode 12 immediately leads to a voltage drop across the resistor 22 and thus to the triggering of the switching element 18 and the switching on of the light source 14.
- the resulting voltage rise at its collector is transmitted via capacitor 21 as a positive voltage pulse to the base of transistor 19.
- transistor 19 short-circuits photodiode 12 and resistor 22, so that the potential at the input of the timer 18 drops to ground. If the transistor 19 blocks again after the capacitor 21 has been charged, the potential at the input of the time switching element 18 rises again if ambient light continues to fall on the photodiode 12 and the light source 14 is switched on again. If there is no more ambient light, the light source 14 remains switched off.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/587,409 US20070223210A1 (en) | 2004-05-04 | 2005-04-29 | Household Appliance Comprising an Interior Light, and Lighting Subunit Therefor |
EP05738064A EP1745253A1 (de) | 2004-05-04 | 2005-04-29 | Haushaltsgerät mit innenraumbeleuchtung und beleuchtungsbaugruppe dafür |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004021858A DE102004021858A1 (de) | 2004-05-04 | 2004-05-04 | Haushaltsgerät mit Innenraumbeleuchtung und Beleuchtungsbaugruppe dafür |
DE102004021858.7 | 2004-05-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005108889A1 true WO2005108889A1 (de) | 2005-11-17 |
Family
ID=34965659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/051977 WO2005108889A1 (de) | 2004-05-04 | 2005-04-29 | Haushaltsgerät mit innenraumbeleuchtung und beleuchtungsbaugruppe dafür |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070223210A1 (de) |
EP (1) | EP1745253A1 (de) |
CN (1) | CN100561087C (de) |
DE (1) | DE102004021858A1 (de) |
RU (1) | RU2382299C2 (de) |
WO (1) | WO2005108889A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008119807A2 (en) * | 2007-04-02 | 2008-10-09 | Arcelik Anonim Sirketi | A cooling device |
WO2010057533A1 (en) * | 2008-11-21 | 2010-05-27 | Arcelik Anonim Sirketi | A cooling device |
WO2012163776A3 (en) * | 2011-05-27 | 2013-04-11 | BSH Bosch und Siemens Hausgeräte GmbH | A cooling device |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7714716B2 (en) * | 2007-07-25 | 2010-05-11 | Robert Bosch Gmbh | Coded security sensor for a door |
ITMI20081475A1 (it) * | 2008-08-06 | 2010-02-07 | I C A Internat S R L | Dispositivo di illuminazione per elettrodomestici |
DE102010039574A1 (de) * | 2010-08-20 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit einer Innenbeleuchtung |
JP5655578B2 (ja) * | 2011-01-14 | 2015-01-21 | パナソニックIpマネジメント株式会社 | 冷蔵庫 |
DE102012202322A1 (de) | 2012-02-16 | 2013-08-22 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit indirekter Kühlkammerbeleuchtung |
US8572808B2 (en) * | 2012-02-23 | 2013-11-05 | Sub-Zero, Inc. | Controlled closure system for a hinge |
DE102012221295A1 (de) * | 2012-11-21 | 2014-05-22 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit einem Kühlfach |
CN103236838A (zh) * | 2013-04-24 | 2013-08-07 | 合肥美的荣事达电冰箱有限公司 | 一种用于冰箱的门开次数统计系统及具有其的冰箱 |
WO2015027385A1 (zh) * | 2013-08-27 | 2015-03-05 | 海信容声(广东)冰箱有限公司 | 一种冰箱照明装置 |
CN105157305B (zh) * | 2015-09-16 | 2017-10-27 | 合肥美的电冰箱有限公司 | 冰箱 |
CN108266937A (zh) * | 2017-10-23 | 2018-07-10 | 中科美菱低温科技股份有限公司 | 一种带照明系统的超低温冷冻储存箱 |
CN210624266U (zh) * | 2019-09-16 | 2020-05-26 | 漳州立达信光电子科技有限公司 | 一种橱柜灯 |
DE102021106861A1 (de) | 2021-03-19 | 2022-09-22 | Domus Line Deutschland GmbH | Beleuchtungsvorrichtung |
DE102021214672A1 (de) | 2021-12-20 | 2023-06-22 | BSH Hausgeräte GmbH | Umgebungslichterfassungseinheit für ein Haushaltsgerät, sowie Haushaltsgerät |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52154159A (en) * | 1976-06-16 | 1977-12-21 | Matsushita Refrig Co | Door switch of refrigerator |
JPH01208691A (ja) * | 1988-02-16 | 1989-08-22 | Nippon Kentetsu Co Ltd | オープンショーケース |
WO2000065885A1 (fr) * | 1999-04-21 | 2000-11-02 | Ushio Denki Kabushiki Kaisya | Dispositif d'alimentation pour lampe a decharge |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5243504A (en) * | 1992-07-29 | 1993-09-07 | Sejzer Daniel A | Sales promotion system and method for attracting consumer attention to each individual article being sold |
US6102548A (en) * | 1999-04-19 | 2000-08-15 | Mantle; Kellie M. | Lighting system for mailbox |
US6376998B1 (en) * | 1999-04-21 | 2002-04-23 | Ushiodenki Kabushiki Kaisha | Feeding device for discharge lamp |
US6203167B1 (en) * | 1999-06-07 | 2001-03-20 | Christine Liu | Drawer light fixture for those having vision difficulties |
US6402338B1 (en) * | 2001-04-05 | 2002-06-11 | Mitzel Machining Inc. | Enclosure illumination system |
US6851820B2 (en) * | 2002-06-26 | 2005-02-08 | Weber-Stephen Products Company | Barbecue grill light |
-
2004
- 2004-05-04 DE DE102004021858A patent/DE102004021858A1/de not_active Withdrawn
-
2005
- 2005-04-29 EP EP05738064A patent/EP1745253A1/de not_active Withdrawn
- 2005-04-29 CN CNB2005800141719A patent/CN100561087C/zh not_active Expired - Fee Related
- 2005-04-29 US US11/587,409 patent/US20070223210A1/en not_active Abandoned
- 2005-04-29 RU RU2006137814/12A patent/RU2382299C2/ru not_active IP Right Cessation
- 2005-04-29 WO PCT/EP2005/051977 patent/WO2005108889A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52154159A (en) * | 1976-06-16 | 1977-12-21 | Matsushita Refrig Co | Door switch of refrigerator |
JPH01208691A (ja) * | 1988-02-16 | 1989-08-22 | Nippon Kentetsu Co Ltd | オープンショーケース |
WO2000065885A1 (fr) * | 1999-04-21 | 2000-11-02 | Ushio Denki Kabushiki Kaisya | Dispositif d'alimentation pour lampe a decharge |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 002, no. 039 (M - 012) 15 March 1978 (1978-03-15) * |
PATENT ABSTRACTS OF JAPAN vol. 013, no. 514 (M - 894) 17 November 1989 (1989-11-17) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008119807A2 (en) * | 2007-04-02 | 2008-10-09 | Arcelik Anonim Sirketi | A cooling device |
WO2008119807A3 (en) * | 2007-04-02 | 2009-03-05 | Arcelik As | A cooling device |
WO2010057533A1 (en) * | 2008-11-21 | 2010-05-27 | Arcelik Anonim Sirketi | A cooling device |
WO2012163776A3 (en) * | 2011-05-27 | 2013-04-11 | BSH Bosch und Siemens Hausgeräte GmbH | A cooling device |
Also Published As
Publication number | Publication date |
---|---|
DE102004021858A1 (de) | 2005-12-01 |
CN100561087C (zh) | 2009-11-18 |
RU2006137814A (ru) | 2008-06-10 |
US20070223210A1 (en) | 2007-09-27 |
RU2382299C2 (ru) | 2010-02-20 |
EP1745253A1 (de) | 2007-01-24 |
CN1950656A (zh) | 2007-04-18 |
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