EP1922443A2 - Household appliance with an emitter for producing ultraviolet light - Google Patents
Household appliance with an emitter for producing ultraviolet lightInfo
- Publication number
- EP1922443A2 EP1922443A2 EP06778260A EP06778260A EP1922443A2 EP 1922443 A2 EP1922443 A2 EP 1922443A2 EP 06778260 A EP06778260 A EP 06778260A EP 06778260 A EP06778260 A EP 06778260A EP 1922443 A2 EP1922443 A2 EP 1922443A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- domestic appliance
- chamber
- radiator
- ultraviolet light
- light
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
Definitions
- the invention relates to a domestic appliance having a chamber which is adapted for treating a product with a liquid and a sump region, to which a pumping device for pumping liquid out of the chamber is connected, and a radiator for generating an ultraviolet light.
- Such a domestic appliance is apparent from DE 43 42 049 C2.
- the household appliance described is a washing machine, which is set up for washing the material introduced according to a circulation process for the washing liquor used and has a storage unit for used rinse water.
- the radiator surrounds a conduit through which wash liquor is circulated, that is, pumped out of a sump area of the chamber and conveyed into a drum rotating in the chamber with the material to be treated.
- Ultraviolet light from the radiator impinges the wash liquor and destroys any bacteria and other microorganisms such as viruses, fungi and algae (all microorganisms hereafter referred to as "germs") in the wash liquor, but only works as long as the wash lasts; it is not suitable for use against germs which, after the end of the washing and after removal of the washed product in the liquid used by the washing or rinsing, may still possibly form a residue of this liquid-containing chamber.
- germs all microorganisms hereafter referred to as "germs”
- the invention to be presented below is based on the object of further developing the known household appliance in such a way that the spread of germs is prevented which, without further action, after treating the material and removing the treated material the home appliance in the still used by the liquid used for treating, possibly could still form a residue of this liquid-containing chamber.
- a domestic appliance is provided with a chamber which is adapted to treat a product with a liquid and a sump region to which a pumping device for pumping liquid out of the chamber is connected, and a radiator for generating an ultraviolet light, in which domestic appliance the radiator is set up to irradiate the sump area with the light.
- the irradiation is carried out exactly where it is to be expected mainly with a load of the household appliance by germs that could spread in a moisture left behind by a previous treatment process.
- the emitter comprises, for example, a liquid-tight cylinder of quartz glass or suitable, permeable to ultraviolet radiation and correspondingly resistant plastic, in which the actual source of ultraviolet radiation is used.
- a radiator adapted to generate the light having a preferred wavelength of 253.7 nm as a wavelength spectrum centered around that wavelength.
- a household appliance in which the radiator has a screen, which prevents a sensitive part against the light, in particular to be treated Good, is irradiated. This is particularly important if the appliance is a washing machine, because you usually do not want to suspend laundry ultraviolet radiation due to their bleaching effect.
- this screen is pivotable, for example, when it is not needed to be pivoted into a treatment process not disturbing position.
- the pumping device has a drain line, and in which in the drain line, an additional radiator for generating an ultraviolet light and irradiating the drain line is arranged.
- an additional radiator for generating an ultraviolet light and irradiating the drain line is arranged.
- a domestic appliance which additionally has a drying device, in particular a drying device comprising a fan for drying the chamber, so as to exclude that after a successful irradiation of the sump area immigrated germs find a particular moist environment in which they can spread.
- This drying device may more preferably comprise a heat source associated with the chamber for accelerating drying.
- the radiator itself can be the heat source; with equal preference may also or additionally be a heating element for heating the liquid for treating the material, the heat source - which comes in particular in a trained as a washing machine domestic appliance into consideration.
- a supply air duct for supplying dry air from an environment of the domestic appliance into the chamber as well as an exhaust duct for draining moist exhaust air from the chamber are provided in the drying device.
- a sensor in particular a moisture sensor, for controlling the drying is provided in the domestic appliance, wherein these controls can be effected by a basically known and, in the present case, suitably adapted control device to which the sensor is connected.
- the household appliance according to the invention or one of its preferred developments just described is in particular designed as a washing machine for washing the goods.
- a rotatable drum for receiving the goods is arranged with further preference in the chamber.
- the sole figure of the drawing shows a household appliance in the form of a washing machine.
- the depiction is schematic and symbolic in order to highlight the aspects that are of particular importance here.
- the washing machine 18 for treating, namely washing, a product 20, represented here by two textile pieces 20, comprises a drum 1 for receiving these textile pieces 20, which drum 1 is suspended rotatably in a tub 2.
- the tub 2 is partially filled with a wash or rinse liquor to treat the product 20, as can be seen in the dashed and wavy line.
- This liquor fills the tub 2, starting from a sump area 19 to an appropriate height. If the liquor is removed from the tub 2, it remains moist in its lower area, here named and shown as the sump area 19; Under certain circumstances, a residue of the liquor may remain. For this reason, the swamp area 19 after completion of treatment of a material 20 provides a milieu which can favor the propagation of various microbial germs.
- a radiator 3 for irradiating the sump region 19 with an ultraviolet light is provided in the sump region 19.
- Ultraviolet light is known to have a strong disinfecting effect and is therefore capable of effectively disinfecting the sump area 19.
- the liquor passes from the sump area 19 via a drain line 17, in which one behind the other a lint filter 5, an additional radiator 4 for disinfecting the drain line 17 with ultraviolet light and a pump 6 are arranged.
- a drain line 17 in which one behind the other a lint filter 5, an additional radiator 4 for disinfecting the drain line 17 with ultraviolet light and a pump 6 are arranged.
- Behind the pump 6, the washing or rinsing eye passes through a corresponding switchable valve either to a drain hose 7 and there in a sewer network outside the washing machine 18, or via a recirculation line 8 in the drum 1 back.
- a washing process can be realized, in which the wash liquor is circulated by means of the pump 6 and the circulation line 8.
- fresh water from a corresponding fresh water network outside the washing machine 18 can be supplied to the tub 2.
- Ultraviolet light which can be usefully used for disinfection, also has the property of exerting a strong bleaching action in a humid and oxygen-containing environment and also of attacking textile material. Thus, under certain circumstances, it may be necessary to shield corresponding sensitive parts, in particular laundry 20, from such light.
- the radiator 3 is provided with a pivotable screen 14 (shown only schematically). If after the completion of the washing process, the sump area 19 is disinfected by means of the radiator 3, the screen 14 can be pivoted so that the laundry 20 is shielded from the light. During a washing process, in which the radiator 3 is not used regularly, the screen 14 can be pivoted to a position in which it is as far as possible from the rotating drum 1 and thus does not interfere with the washing process.
- a drying device 9, 10, 11, 12 comprising a supply air duct 9 for supplying dry air from an environment of the washing machine 18 into the chamber 2, and also an exhaust duct 10 for removing moist exhaust air from the chamber 2.
- a fan 1 1 is provided to support a corresponding air circulation in the supply air duct 9, a fan 1 1 is provided.
- the supply air duct 9 brings the dry air expedient equal to the sump area 19;
- the exhaust duct 10 is connected to a region of the chamber 2 away from the sump area 19.
- the exhaust duct 10 opens into exhaust openings 12, from which the exhaust air from the washing machine 18 also passes. These exhaust openings 12 are located for example in a detergent drawer, as it is commonly used for dosing detergent.
- the radiator 3 can be advantageously used to dry the sump area 19 with the heat which it produces in addition to the light. This improves the stability of the sump region 19 against the spread of germs.
- a heating rod 16 (which is always present in a conventional washing machine) (also indicated only schematically) can be used for heating the sump region 19 for the purpose of drying.
- the already mentioned screen 14 on the radiator 3 can also serve to shield the sensitive material 20 to allow an operator to observe the emanating radiation from the radiator 3 by a conventional manner present sight glass in a door of the tub 2. Since the Natronsilikatglas usually used in such a door is impermeable to ultraviolet radiation, damage to the operator is not to be feared. Finally, the screen can also be used to selectively guide the radiation from the radiator 3 to different subregions of the sump region 19. Within the scope of such a configuration, the emitter 3 itself does not always have to illuminate readily all subregions of the sump area 19 to be treated, which results in a certain degree of constructive freedom in the design of the washing machine 18.
- the described disinfection and drying process in the washing machine 18 can be controlled by simple timing; especially for the
- Drying is also possible by a corresponding humidity sensor supported control.
- a corresponding humidity sensor supported control Such a sensor can be mounted, for example, in the exhaust duct 10; During the drying process in the exhaust duct 10 is a predetermined
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Physical Water Treatments (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cosmetics (AREA)
- Glass Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005013207U DE202005013207U1 (en) | 2005-08-18 | 2005-08-18 | A method for disinfecting washing items in the drum of a horizontal axis front loading washing machine has a UV radiation source adjacent the drain pump |
PCT/EP2006/065405 WO2007020282A2 (en) | 2005-08-18 | 2006-08-17 | Household appliance with an emitter for producing ultraviolet light |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1922443A2 true EP1922443A2 (en) | 2008-05-21 |
EP1922443B1 EP1922443B1 (en) | 2009-07-22 |
Family
ID=37085402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06778260A Not-in-force EP1922443B1 (en) | 2005-08-18 | 2006-08-17 | Household appliance with an emitter for producing ultraviolet light |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1922443B1 (en) |
AT (1) | ATE437262T1 (en) |
DE (2) | DE202005013207U1 (en) |
WO (1) | WO2007020282A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019120343A1 (en) | 2017-12-20 | 2019-06-27 | Gravity Holding Ltd. | Uv disinfection apparatus, method therefor, and use thereof |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2335556T3 (en) * | 2006-10-30 | 2010-03-29 | Arcelik Anonim Sirketi | DISHWASHER OR WASHER. |
EP2089568B1 (en) * | 2006-11-27 | 2015-04-29 | Arçelik Anonim Sirketi | A household appliance |
ES2369037T3 (en) | 2007-03-29 | 2011-11-24 | Arçelik Anonim Sirketi | WASHING MACHINE. |
EP2314753A1 (en) * | 2009-10-20 | 2011-04-27 | Electrolux Home Products Corporation N.V. | A method for performing a rinse cycle during a washing process in a washing machine |
DE102011076991A1 (en) * | 2011-06-06 | 2012-12-06 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance with liquid-conducting areas as well as with at least one radiation source with suitably determinable radiation path |
US9165756B2 (en) | 2011-06-08 | 2015-10-20 | Xenex Disinfection Services, Llc | Ultraviolet discharge lamp apparatuses with one or more reflectors |
US9093258B2 (en) | 2011-06-08 | 2015-07-28 | Xenex Disinfection Services, Llc | Ultraviolet discharge lamp apparatuses having optical filters which attenuate visible light |
US9114182B2 (en) * | 2012-02-28 | 2015-08-25 | Xenex Disinfection Services, Llc | Germicidal systems and apparatuses having hollow tumbling chambers |
JP2016500284A (en) | 2012-12-06 | 2016-01-12 | ゼネックス・ディスインフェクション・サービシィズ・エルエルシイ | System for determining operating parameters and disinfection schedule of a sterilization device, and sterilization lamp apparatus including a lens system |
US8816301B2 (en) | 2012-12-07 | 2014-08-26 | Xenex Healthcare Services, Llc | Lamp and reflector arrangements for apparatuses with multiple germicidal lamps |
WO2015169348A1 (en) * | 2014-05-07 | 2015-11-12 | Electrolux Appliances Aktiebolag | Laundry washing machine with an uv source |
US9867894B2 (en) | 2015-07-02 | 2018-01-16 | Xenex Disinfection Services, Llc. | Germicidal apparatuses with configurations to selectively conduct different disinfection modes interior and exterior to the apparatus |
US9517284B1 (en) | 2015-07-02 | 2016-12-13 | Xenex Disinfection Services, Llc. | Germicidal apparatuses with configurations to selectively conduct different disinfection modes interior and exterior to the apparatus |
US11690927B2 (en) | 2016-02-04 | 2023-07-04 | Xenex Disinfection Services Inc. | Systems, cabinets and methods for disinfecting objects |
US11648326B2 (en) | 2016-02-04 | 2023-05-16 | Xenex Disinfection Services Inc. | Cabinets for disinfecting objects |
WO2018184803A1 (en) * | 2017-04-07 | 2018-10-11 | Arcelik Anonim Sirketi | A washer comprising a light source |
DE102017113802A1 (en) * | 2017-06-22 | 2018-12-27 | Miele & Cie. Kg | A method for neutralizing odors in a laundry care device, control device, odor neutralization device and laundry care device |
TW201945612A (en) * | 2018-04-16 | 2019-12-01 | 日商松下知識產權經營股份有限公司 | washing machine |
DE202019000403U1 (en) | 2019-01-29 | 2019-02-13 | Günter Wolf | UV lamp for laundry disinfection |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4004057C2 (en) * | 1990-02-10 | 1997-10-30 | Miele & Cie | Program-controlled household appliance, such as a dishwasher or washing machine, and a method for operating the household appliance |
JP3099423B2 (en) * | 1991-06-13 | 2000-10-16 | 松下電器産業株式会社 | dishwasher |
US5765403A (en) * | 1993-04-16 | 1998-06-16 | Tri-Mark Metal Corporation | Water treatment method and apparatus |
DE4342049C2 (en) * | 1993-12-09 | 1996-11-14 | Bauknecht Hausgeraete | Washing machine with a UV radiation source |
US6088932A (en) * | 1997-12-30 | 2000-07-18 | Amana Company, L.P. | Efficiency clothes dryer |
GB2338719B (en) * | 1998-03-05 | 2002-01-23 | Samsung Electronics Co Ltd | Washing machine having a device for filtering dirt in washing water |
-
2005
- 2005-08-18 DE DE202005013207U patent/DE202005013207U1/en not_active Expired - Lifetime
-
2006
- 2006-08-17 WO PCT/EP2006/065405 patent/WO2007020282A2/en active Application Filing
- 2006-08-17 EP EP06778260A patent/EP1922443B1/en not_active Not-in-force
- 2006-08-17 DE DE502006004331T patent/DE502006004331D1/en active Active
- 2006-08-17 AT AT06778260T patent/ATE437262T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2007020282A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019120343A1 (en) | 2017-12-20 | 2019-06-27 | Gravity Holding Ltd. | Uv disinfection apparatus, method therefor, and use thereof |
Also Published As
Publication number | Publication date |
---|---|
ATE437262T1 (en) | 2009-08-15 |
DE502006004331D1 (en) | 2009-09-03 |
WO2007020282A2 (en) | 2007-02-22 |
WO2007020282A3 (en) | 2007-05-10 |
EP1922443B1 (en) | 2009-07-22 |
DE202005013207U1 (en) | 2006-09-28 |
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