EP2379960A2 - Kältegerät mit einer abtauheizung - Google Patents
Kältegerät mit einer abtauheizungInfo
- Publication number
- EP2379960A2 EP2379960A2 EP09795944A EP09795944A EP2379960A2 EP 2379960 A2 EP2379960 A2 EP 2379960A2 EP 09795944 A EP09795944 A EP 09795944A EP 09795944 A EP09795944 A EP 09795944A EP 2379960 A2 EP2379960 A2 EP 2379960A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- defrosting
- defrost
- time
- predetermined
- 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.)
- Withdrawn
Links
- 238000010257 thawing Methods 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005057 refrigeration Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
-
- 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
-
- 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
- F25D2700/10—Sensors measuring the temperature of the evaporator
Definitions
- the present invention relates to the field of refrigeration appliances, in particular the field of household refrigerators.
- a defrost duration is controlled by a mounted, for example, on the evaporator of the refrigerator temperature sensor which detects a predefined defrost end temperature, when reached the defrost heater off or remains turned on for a further minimum defrosting, the defrost heater are switched off within the mecanicabtauzeit only when exceeding a safety temperature threshold can.
- the heat given off by the defrost heater may not distribute evenly throughout the evaporator.
- the undesired ice is not defrosted at a location farther from the temperature sensor, resulting in uneven defrost.
- the invention is based on the recognition that a more efficient defrost can be realized by providing at least two different predetermined defrost temperatures within the same defrost operation. For example, at the beginning of the defrosting process, for example, a higher temperature can be set, so that a secure defrost can be achieved with a short defrost duration in the entire evaporator. Subsequently, for example, a lower defrosting temperature can be set, which ensures a uniform heat distribution in the evaporator for a longer defrost duration. As a result, energy-efficient uniform defrosting is achieved.
- the invention relates in one aspect to a refrigeration appliance, in particular a household refrigeration appliance, with an evaporator, which is subjected from time to time to defrosting a defrosting, by a arranged at least in the vicinity of the evaporator temperature sensor after reaching a predetermined temperature by the temperature sensor or after a is switched off, the defrost heater is configured to generate at least two different defrosting temperatures according to a predetermined Abtautemperaturverlauf during a defrosting operation.
- the predetermined defrost temperature history may provide for a higher defrost temperature to be set at the beginning of the defrost cycle and for a second, lower defrost temperature to be set after the lapse of a predetermined time interval, which may be maintained until the end of defrost.
- the predetermined defrost temperature history includes a first defrost temperature portion having a first average defrost temperature, an intermediate defrost temperature portion following the first defrost temperature portion, in particular, a defrost temperature ramp portion, and a defrost temperature portion
- the intermediate defrosting temperature section is falling, in particular steadily decreasing.
- the first defrost temperature section has a higher temperature than the third defrost temperature section.
- the defrost temperature of the first defrost temperature section and the second defrost temperature section is at least approximately constant.
- a control device for controlling the defrost heater which is designed to generate the first defrost temperature within a first predetermined time interval and within a second predetermined time interval to generate a falling linear defrost temperature until reaching the second constant defrost temperature.
- the defrost temperature history includes a plurality of different constant defrost temperatures with ramped rising or falling defrost temperature portions of predetermined duration of time interposed therebetween.
- a control device is provided to carry out the defrosting process within a predetermined period of time.
- the refrigeration appliance is designed as a Nofrost refrigeration appliance with an evaporator arranged outside a space to be cooled, which evaporator is designed in particular as a fin evaporator with a temperature sensor.
- the invention relates in a further aspect to a method for controlling a
- Defrosting a refrigerator with generating a first defrost temperature having a first temperature level for a first time period, changing the first defrost temperature to a second temperature level within a second time period, and maintaining the second temperature level as a second defrost temperature for a third time period.
- the first defrosting temperature is reduced towards the second defrosting temperature, in particular continuously reduced.
- Fig. 1 is a schematic block diagram of a defrost heater
- Fig. 1 shows a block diagram of a defrost heater 101, which can be used for example in a household refrigerator.
- the defrost heater 101 includes a defrost heater 103, a controller 105 and a temperature sensor 107.
- the Temperature sensor 107 is provided to detect the actual defrost temperature and to supply it to the controller 105.
- the control device 105 controls the defrost heater 103 according to a predetermined Abtautemperaturverlauf such that adjusts the predetermined Abtautemperaturverlauf temporally on the temperature sensor.
- FIG. 2 illustrates a defrost temperature history with a linear, ramped, intermediate defrost temperature section 201, which connects a first constant defrost temperature 203 to a second, constant defrost temperature 205.
- the first defrost temperature 203 has a temperature value T1 maintained until a time t1. Subsequently, the defrosting temperature is reduced until a time t2 at which the second constant defrosting temperature 205 with the temperature value T2 is reached.
- the first constant defrosting temperature 203 is greater than the second constant defrosting temperature 205 and is set only for a period of time set, for example, at the beginning of the defrosting operation and for a short time, for example, 1 second, 2 seconds, 3 seconds, 5 seconds, 10 seconds or 30 s, is maintained.
- the second defrosting temperature 205 is maintained, for example, until the end of the entire defrosting process.
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)
- Defrosting Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008054935A DE102008054935A1 (de) | 2008-12-18 | 2008-12-18 | Kältegerät mit einer Abtauheizung |
| PCT/EP2009/065748 WO2010078998A2 (de) | 2008-12-18 | 2009-11-24 | Kältegerät mit einer abtauheizung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2379960A2 true EP2379960A2 (de) | 2011-10-26 |
Family
ID=42193922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09795944A Withdrawn EP2379960A2 (de) | 2008-12-18 | 2009-11-24 | Kältegerät mit einer abtauheizung |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9534826B2 (de) |
| EP (1) | EP2379960A2 (de) |
| JP (1) | JP2012513010A (de) |
| KR (1) | KR20110103938A (de) |
| CN (1) | CN102257336B (de) |
| DE (1) | DE102008054935A1 (de) |
| RU (1) | RU2504721C2 (de) |
| WO (1) | WO2010078998A2 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011084826A1 (de) | 2011-10-19 | 2013-04-25 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit zwei Verdampfern |
| DE102011084897A1 (de) | 2011-10-20 | 2013-04-25 | BSH Bosch und Siemens Hausgeräte GmbH | Enteisung eines Verdampfers in einem Kältegerät mit zwei Verdampfern |
| US9816745B2 (en) * | 2012-11-30 | 2017-11-14 | Lennox Industries Inc. | Ice sensor for a heat pump |
| RU2547438C1 (ru) * | 2014-01-21 | 2015-04-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кемеровский технологический институт пищевой промышленности" | Охлаждаемая витрина для экспозиции кондитерских изделий |
| KR102723276B1 (ko) * | 2016-11-10 | 2024-10-31 | 엘지전자 주식회사 | 냉장고 및 냉장고의 제어 방법 |
| CN110094931B (zh) * | 2019-05-30 | 2021-08-17 | 海信(山东)冰箱有限公司 | 一种冰箱温控方法及装置、冰箱 |
| DE102020210411A1 (de) * | 2020-08-17 | 2022-02-17 | BSH Hausgeräte GmbH | Abtauen eines Verdampfers eines Kältegeräts |
| DE102021208510A1 (de) | 2021-08-05 | 2023-02-09 | BSH Hausgeräte GmbH | Verfahren zum Betrieb eines Kältegeräts und Kältegerät mit einer Abtauheizung |
| USD1116578S1 (en) | 2024-04-15 | 2026-03-10 | Carter-Hoffmann LLC | Open warming container |
| CN119573297B (zh) * | 2024-12-02 | 2025-11-28 | 珠海格力电器股份有限公司 | 热泵机组及其控制方法、装置、存储介质和程序产品 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU553417A1 (ru) * | 1973-12-17 | 1977-04-05 | Предприятие П/Я Г-4778 | Холодильник |
| US3898860A (en) * | 1974-10-15 | 1975-08-12 | Texas Instruments Inc | Automatic defrosting control system |
| US3899896A (en) * | 1974-10-15 | 1975-08-19 | Texas Instruments Inc | Automatic defrosting control system |
| DE3001019A1 (de) * | 1980-01-12 | 1981-07-23 | Danfoss A/S, 6430 Nordborg | Abtauvorrichtung fuer den verdampfer einer kaelteanlage |
| US4432211A (en) | 1980-11-17 | 1984-02-21 | Hitachi, Ltd. | Defrosting apparatus |
| JPH0673443B2 (ja) * | 1986-02-19 | 1994-09-21 | ホシザキ電機株式会社 | 解凍装置 |
| EP0285690A1 (de) | 1987-04-08 | 1988-10-12 | Viessmann Werke GmbH & Co. | Verfahren und Vorrichtung zur temperaturabhängigen Bedarfsabtauung von Kühlanlagen |
| DE3804267C1 (de) * | 1988-02-11 | 1989-02-23 | Friedhelm 5920 Bad Berleburg De Meyer | |
| US4974417A (en) * | 1988-10-12 | 1990-12-04 | Honeywell Inc. | Heat pump defrosting operation |
| US5187084A (en) * | 1990-06-22 | 1993-02-16 | The Dow Chemical Company | Automatic air temperature cycler and method of use in polymerose chain reaction |
| US5379608A (en) * | 1992-03-24 | 1995-01-10 | Fuji Electric Co., Ltd. | Defrosting control unit for showcases |
| US5332028A (en) * | 1993-03-12 | 1994-07-26 | Carrier Corporation | Method and apparatus for controlling supplemental electric heat during heat pump defrost |
| JPH10318649A (ja) * | 1997-05-15 | 1998-12-04 | Samsung Electron Co Ltd | 蒸発器と冷却室との間の空気の流動を防止するための遮断装置を備えた冷蔵庫 |
| KR100271974B1 (ko) | 1998-08-31 | 2000-11-15 | 전주범 | 냉장고의 제상 제어방법 |
| JP3636602B2 (ja) * | 1998-09-16 | 2005-04-06 | 株式会社東芝 | 冷蔵庫 |
| CA2284234C (en) * | 1998-10-01 | 2003-09-16 | Samsung Electronics Co., Ltd. | Method and apparatus for predicting power consumption of refrigerator having defrosting heater |
| WO2000026590A1 (en) * | 1998-10-31 | 2000-05-11 | Daewoo Electronics Co., Ltd. | Defrost control method for use in a refrigerator |
| US6993418B2 (en) * | 1999-03-16 | 2006-01-31 | Sigma Systems Corporation | Method and apparatus for latent temperature control for a device under test |
| US6490876B2 (en) * | 2000-02-15 | 2002-12-10 | Whirlpool Corporation | Method and apparatus for de-icing dehumidifier |
| EP1180652B1 (de) * | 2000-08-18 | 2006-09-27 | Ranco Incorporated of Delaware | Steuervorrichtung und Verfahren zum Steuern des Abtauvorgangs in einem Kühlschrank |
| RU2249163C2 (ru) * | 2003-06-09 | 2005-03-27 | Открытое акционерное общество "Егоршинский радиозавод" | Таймер холодильных устройств |
| US20050161327A1 (en) * | 2003-12-23 | 2005-07-28 | Michele Palmieri | Microfluidic device and method for transporting electrically charged substances through a microchannel of a microfluidic device |
| US7153024B2 (en) * | 2004-01-28 | 2006-12-26 | Denso Corporation | Sensor and temperature sensor capable of automatic installation |
| US8070840B2 (en) * | 2005-04-22 | 2011-12-06 | Shell Oil Company | Treatment of gas from an in situ conversion process |
| US7739880B2 (en) * | 2006-09-18 | 2010-06-22 | Daikin Industries, Ltd. | Compressor and air conditioner |
| US7589520B2 (en) * | 2006-12-05 | 2009-09-15 | Delta Design, Inc. | Soak profiling |
| JP5121844B2 (ja) * | 2007-10-09 | 2013-01-16 | パナソニック株式会社 | 冷凍サイクル装置 |
| CN102016462B (zh) * | 2008-04-28 | 2013-07-10 | 阿莫绿色技术有限公司 | 利用条带形平板发热体的除霜加热器及其制造方法和除霜装置 |
-
2008
- 2008-12-18 DE DE102008054935A patent/DE102008054935A1/de not_active Withdrawn
-
2009
- 2009-11-24 JP JP2011541276A patent/JP2012513010A/ja not_active Withdrawn
- 2009-11-24 RU RU2011124741/13A patent/RU2504721C2/ru not_active IP Right Cessation
- 2009-11-24 WO PCT/EP2009/065748 patent/WO2010078998A2/de not_active Ceased
- 2009-11-24 KR KR1020117011798A patent/KR20110103938A/ko not_active Withdrawn
- 2009-11-24 EP EP09795944A patent/EP2379960A2/de not_active Withdrawn
- 2009-11-24 US US13/131,609 patent/US9534826B2/en not_active Expired - Fee Related
- 2009-11-24 CN CN200980151152.9A patent/CN102257336B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010078998A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110225993A1 (en) | 2011-09-22 |
| CN102257336B (zh) | 2014-06-18 |
| JP2012513010A (ja) | 2012-06-07 |
| US9534826B2 (en) | 2017-01-03 |
| CN102257336A (zh) | 2011-11-23 |
| WO2010078998A3 (de) | 2011-03-03 |
| WO2010078998A2 (de) | 2010-07-15 |
| RU2011124741A (ru) | 2013-01-27 |
| DE102008054935A1 (de) | 2010-06-24 |
| RU2504721C2 (ru) | 2014-01-20 |
| KR20110103938A (ko) | 2011-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20110905 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BSH HAUSGERAETE GMBH |
|
| 17Q | First examination report despatched |
Effective date: 20180322 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20180810 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20181221 |