EP1848937A1 - Kühlvorrichtung und steuerverfahren dafür - Google Patents
Kühlvorrichtung und steuerverfahren dafürInfo
- Publication number
- EP1848937A1 EP1848937A1 EP06710892A EP06710892A EP1848937A1 EP 1848937 A1 EP1848937 A1 EP 1848937A1 EP 06710892 A EP06710892 A EP 06710892A EP 06710892 A EP06710892 A EP 06710892A EP 1848937 A1 EP1848937 A1 EP 1848937A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air flow
- cooling device
- compartment
- air
- temperatures
- 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- Withdrawn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
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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
-
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0684—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans allowing rotation in reverse direction
-
- 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
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
Definitions
- the present invention relates to a cooling device wherein the air circulation is improved and a control method thereof.
- the air in a cooling and/or freezing compartment is circulated within the compartment by the help of a fan to maintain a homogeneous distribution of heat.
- the air is preferably passed over the evaporator.
- the air that reaches its lowest temperature right after passing over the evaporator is heated as it circulates within the compartment.
- the food items that the air contacts first after having left the evaporator are 3-4°C cooler than the food items that the air ultimately contacts.
- the food on the closer shelf has to be cooled down to -22°C. This is a factor which both reduces efficiency by prolonging the cooling time and increases energy consumption.
- the aim of the present invention is to realize a cooling device and a control method thereof wherein the heat distribution within the compartment is controlled more efficiently and a fast cooling process is accomplished.
- Figure 1 - is the side schematic view of a cooling device.
- Figure 2 - is the front schematic view of a cooling device.
- Figure 3 - is the front schematic view of a cooling device in another embodiment.
- Figure 4 - is the front schematic view of a cooling device in yet another embodiment.
- Figure 5 - is the flow chart of a control method.
- Figure 6 - is the flow chart of another embodiment of the control method.
- Figure 7 - is the flow chart of a further embodiment of the control method.
- Figure 8 - is the flow chart of an alternative embodiment of the control method.
- the cooling device (1) of the present invention comprises, a compressor (4) compressing the refrigerant fluid and circulating it in the refrigerant cycle,
- At least two sensors (6, 600) measuring temperatures (TA, TB) situated at different points (A, B) in the compartment (2) and,
- control unit (7) which determines the direction of the air flow (Fl, F2) by evaluating the temperatures (TA, TB) measured by the sensors (6, 600) and controls the fan (5) according to this choice ( Figure 1).
- the control unit (7) compares the temperature values (TA, TB) measured by the sensors (6, 600) and provides the direction of the air flow (Fl, F2) to be such that the air, after sweeping past the evaporator (3), first reaches the higher temperature point within the compartment (2), by flowing from the comparatively higher temperature point towards the lower temperature point (in a clockwise or counterclockwise direction between A and B).
- the control unit (7) gathers information on the temperature values (TA, TB) measured by the sensors (6, 600) and, if necessary, about whether or not the compressor (4) is operating, and controls the fan (5) accordingly.
- the control unit (7) is electrically connected to the compressor (4), the sensors (6, 600) and the fan (5) to this end.
- the compartment (2) comprises a channel (8) in which the evaporator (3) and the fan (5) are situated and at least two orifices (9, 900) for allowing air to enter and exit from this channel (8).
- the air flow (Fl, F2) enters the channel (8) from one orifice (9), flows above the evaporator (3), and leaves the channel (8) from the other orifice (900).
- the change of direction of the air flow (Fl, F2) is provided by a fan (5), positioned in the compartment (2), preferably in the channel (8), which can circulate the air in the clockwise (Fl) and in the reverse (F2) direction within the compartment (2) ( Figure 2).
- (Fl, F2) is provided by two fans (5, 500) side by side, whereby one of the fans circulates the air in only clockwise direction (Fl) and the other in only counterclockwise direction (F2) ( Figure 3).
- the air passing over the evaporator (3) for example, first reaches A (Fl) when only the first fan (5) operates, and first reaches B (F2) when only the second fan (500) operates.
- the two fans (5, 500) do not operate concurrently in order to have the air flow (Fl, F2) create a circulation within the compartment (2).
- two fans (5, 500) are positioned at different points within the compartment (2), one of the fans circulating the air only in a clockwise (Fl) direction and the other in the counter clockwise direction (F2) ( Figure 4).
- the upper fan (5) can circulate the air in a clockwise direction (Fl)
- the lower fan (500) can circulate in a counterclockwise direction (F2)
- the air which passes over the evaporator (3) will first reach A (Fl) when only the first fan (5) operates, and will first reach B (F2) when only the second fan (500) operates.
- the control unit (7) of the cooling device (1) of the present invention functions according to the method given below: comparing (101) the temperatures (TA, TB) measured at two different points (A, B); controlling (102, 103) the fan(s) (5, 500) so that the air flows in a direction (Fl, F2) wherein the air first reaches the point that is hotter (from A to B or from B to A) after sweeping the evaporator (3).
- the compressor (4) before comparing (101) the temperatures (TA, TB), the compressor (4) is controlled (105) for whether it is operating or not, if it is not operating, air flow (Fl, F2) stops (106) and the step wherein comparing (101) the temperatures (TA, TB) is carried out only after the compressor (4) starts operating ( Figure 6).
- the first direction of the air flow (Fl, F2) after the compressor (4) starts operating is a direction determined by the producer, for example from A to B. But if the cooling device (1) is not operating for the first time, the first direction of the air flow (Fl, F2) after the compressor (4) starts operating is the direction when the compressor (4) last operated.
- the difference of the two temperatures (TB-TA) is calculated. This difference is compared (108) to a value (DT2) set by the producer. While the said difference is below this value (DT2), the direction of the air flow is not changed (104). If the said difference is above this value (DT2), the flow is changed (102) to the reverse direction.
- DT2 a value set by the producer. While the said difference is below this value (DT2), the direction of the air flow is not changed (104). If the said difference is above this value (DT2), the flow is changed (102) to the reverse direction.
- the DTl and DT2 values can be equal or different from each other.
- a threshold value (TAC, TBC) is assigned to each one of the sensors (6, 600) and the values read are compared (109, 110) not to each other but to these values, if these threshold values are exceeded, the air flow after the evaporator (3) is directed so that it first reaches to the point where the threshold value is exceeded. For example, if the temperature value (TA) read by the first sensor (6) exceeds the threshold value (TAC) assigned to this sensor (6) (TAfUTAC), the direction of the air flow is decided to be from A to B (Fl).
- the temperature (TB) measured by the other sensor (600) is checked (110) for whether it exceeds the threshold value (TBC) of this sensor (600). If it is exceeded (TB fU TBC), the air circulation (F2) is from B to A (103), otherwise the circulation direction is from A to B (102) ( Figure 8).
- the control unit (7) operates the upper fan (5) which can circulate the air both clockwise and counter clockwise ( Figure 2), so that the air flow is from A to B (Fl).
- the hot food on the upper shelf will cool rapidly since the air passing over the evaporator will first reach the upper shelf.
- the control unit (7) will circulate the air from B to A (F2), the food on the lower shelf will cool since cold air will first flow through the lower shelf.
- the temperature of the compartment (2) is controlled in more points by positioning the sensors (6, 600) and the fan(s) (5, 500) suitably, creating an air flow which ensures that cool air reaches first of all the required region . Consequently the speed and efficiency of cooling is enhanced, and energy consumption is reduced.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR200500510 | 2005-02-16 | ||
PCT/IB2006/050465 WO2006087669A1 (en) | 2005-02-16 | 2006-02-13 | A cooling device and a control method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1848937A1 true EP1848937A1 (de) | 2007-10-31 |
Family
ID=36585762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06710892A Withdrawn EP1848937A1 (de) | 2005-02-16 | 2006-02-13 | Kühlvorrichtung und steuerverfahren dafür |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1848937A1 (de) |
KR (1) | KR100924733B1 (de) |
CN (1) | CN100538226C (de) |
RU (1) | RU2362949C2 (de) |
WO (1) | WO2006087669A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202008004543U1 (de) * | 2008-02-26 | 2009-07-09 | Liebherr-Hausgeräte Lienz Gmbh | Kühl- und/oder Gefriergerät |
DE102010002419A1 (de) * | 2010-02-26 | 2011-09-01 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät |
KR20130073543A (ko) * | 2011-12-23 | 2013-07-03 | 엘지전자 주식회사 | 냉장고 |
CN110360790A (zh) * | 2014-08-20 | 2019-10-22 | 东芝生活电器株式会社 | 冰箱 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0752955B2 (ja) * | 1986-02-05 | 1995-06-05 | 松下電器産業株式会社 | 投写型テレビジヨン受像機 |
KR0160424B1 (ko) * | 1994-06-01 | 1999-01-15 | 윤종용 | 냉장고 |
JP2000130913A (ja) * | 1998-10-28 | 2000-05-12 | Toshiba Corp | 冷蔵庫 |
JP2000346531A (ja) * | 1999-05-31 | 2000-12-15 | Toshiba Corp | 冷蔵庫 |
-
2006
- 2006-02-13 WO PCT/IB2006/050465 patent/WO2006087669A1/en active Application Filing
- 2006-02-13 EP EP06710892A patent/EP1848937A1/de not_active Withdrawn
- 2006-02-13 RU RU2007134350/12A patent/RU2362949C2/ru not_active IP Right Cessation
- 2006-02-13 CN CNB2006800052067A patent/CN100538226C/zh not_active Expired - Fee Related
- 2006-02-13 KR KR1020077018528A patent/KR100924733B1/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006087669A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN100538226C (zh) | 2009-09-09 |
RU2362949C2 (ru) | 2009-07-27 |
CN101128711A (zh) | 2008-02-20 |
KR20070103450A (ko) | 2007-10-23 |
RU2007134350A (ru) | 2009-03-27 |
WO2006087669A1 (en) | 2006-08-24 |
KR100924733B1 (ko) | 2009-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100827039B1 (ko) | 냉장고용 급속 냉각 및 해동 시스템의 제어 방법 및 제어 시스템 | |
US9772130B2 (en) | Refrigerator and method for controlling a refrigerator | |
EP2926675B1 (de) | Auftaugerät | |
CN103175364A (zh) | 冰箱 | |
KR100908021B1 (ko) | 냉각 장치 | |
CN105849485A (zh) | 冰箱 | |
JP2009250476A (ja) | 冷蔵庫 | |
EP1848937A1 (de) | Kühlvorrichtung und steuerverfahren dafür | |
US20080202136A1 (en) | Refrigerator Unit and/or Freezer Unit | |
JP2005172303A (ja) | 冷蔵庫 | |
JP4223017B2 (ja) | 冷蔵庫 | |
KR100593632B1 (ko) | 냉장고의 제상주기 제어방법 및 그 장치 | |
JP2007101163A (ja) | 冷却貯蔵庫 | |
JP2005195293A (ja) | 冷蔵庫 | |
JP2006275467A (ja) | ショーケース | |
US20070130968A1 (en) | Refrigerating storage cabinet and refrigerating equipment | |
JP4364132B2 (ja) | 冷蔵庫 | |
JP3886190B2 (ja) | 自動販売機 | |
CN114719542B (zh) | 医用冷藏箱的风道结构及其控制方法 | |
US20230266047A1 (en) | Method for operating a domestic refrigerator, and domestic refrigerator | |
JP5431444B2 (ja) | 冷蔵庫 | |
US20230280081A1 (en) | Refrigerator | |
JP2008089260A (ja) | 冷蔵庫 | |
JP2007120913A (ja) | 冷蔵庫 | |
JP3672720B2 (ja) | 自動販売機の冷却装置 |
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: 20070816 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20130731 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20170524 |
|
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 |
|
18D | Application deemed to be withdrawn |
Effective date: 20171005 |