EP2756246A2 - Kältegerät mit intensivkühlfunktion - Google Patents
Kältegerät mit intensivkühlfunktionInfo
- Publication number
- EP2756246A2 EP2756246A2 EP12759061.0A EP12759061A EP2756246A2 EP 2756246 A2 EP2756246 A2 EP 2756246A2 EP 12759061 A EP12759061 A EP 12759061A EP 2756246 A2 EP2756246 A2 EP 2756246A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- storage chamber
- user
- operating state
- temperature
- refrigerator
- 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
- 238000005057 refrigeration Methods 0.000 title abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims abstract 3
- 238000001816 cooling Methods 0.000 claims description 45
- 230000033764 rhythmic process Effects 0.000 claims description 3
- 230000003442 weekly effect Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 235000021152 breakfast Nutrition 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 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
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/28—Quick cooling
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/30—Quick freezing
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
- F25D2400/361—Interactive visual displays
-
- 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
- F25D2600/00—Control issues
- F25D2600/02—Timing
-
- 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
- F25D2600/00—Control issues
- F25D2600/04—Controlling heat transfer
Definitions
- the present invention relates to a refrigeration appliance, in particular a household refrigerator, with intensive cooling function.
- Conventional domestic refrigeration appliances such as refrigerators or freezers, usually have a cold generator which is switched on and off with the aid of measured values of a temperature sensor arranged on a storage chamber of the appliance, in order to keep the temperature of the storage chamber in a desired range.
- many such refrigerators have an intensive cooling mode in which the chiller operates continuously, even if this results in the temperature of the storage chamber falling below the target range. The use of the intensive cooling mode is recommended to rapidly cool down large quantities of newly stored, warm chilled goods, eg inventories purchased for several days, into the target range.
- Chiller Chiller and operates continuously for several hours without turning off when the lower limit of the target range. If the user fails to activate the intensive cooling mode when loading the chilled goods, it may take a few minutes for the temperature of the storage chamber to reach the upper limit of the target range and the chiller to be switched on, but if it does
- the intensive cooling mode is switched on, it works with the same performance as in intensive cooling mode until the lower limit of the target range has been reached.
- a heating of previously located in the storage chamber refrigerated goods by the newly invited can not be prevented in one and the other case.
- the intensive cooling mode is only switched on during charging, its efficiency is low.
- To use the intensive cooling mode efficiently it is necessary to activate it before the warm chilled goods is invited. Then, the storage chamber at the time when the warm goods to be cooled is invited, namely already cooled below the target range, the warm goods cooled cools down faster in the cold environment, and even if previously located in the storage chamber refrigerated goods is heated by achieved It is not as high a temperature as in the case that the intensive cooling mode is turned on only when charging.
- Object of the present invention is therefore to provide a refrigeration device, in which an efficient use of the intensive cooling mode is facilitated.
- a cold generator and a controller controlling the performance of the refrigerator which switch between a low average power operating mode in which the power of the refrigerator is controlled to maintain the temperature of the storage chamber within a desired range and a high average power operating mode of the refrigerator
- Chiller is switchable, in which the temperature of the storage chamber falls below the target range, a timer is provided, which is adapted to bring about a switch to the operating state of high average power periodically at a user definable times.
- a timer is provided, which is adapted to bring about a switch to the operating state of high average power periodically at a user definable times.
- Changeover times of the refrigeration device in the weekly rhythm be periodic.
- an initial time of the operating state of high average power can be input to a user interface of the refrigeration device. It is then up to the user himself, this start time in time before his
- Another, more convenient option is to allow the user to enter a time at the user interface that is later than the start time of the high average power mode, in particular the time of its expected arrival.
- Target range reached A user can take advantage of this by establishing a time for high average power operation which is a period of time in which he is predictably himself in the immediate vicinity of the refrigerator and will not be disturbed by operating noise from the refrigerator would like to.
- the time, in which a malfunction by operating noise of the refrigerator can be avoided, can even be extended, if following the
- High medium power mode should immediately resume the low average power mode, or the chiller should remain off until the temperature has risen above the setpoint.
- Fig. 1 is a block diagram of the refrigeration device to which the present invention
- Fig. 2 is a flowchart of a running in a control unit of the refrigeration device
- FIG. 3 shows a user interface of the refrigerator in a state in which it is ready to receive a command to switch to intensive cooling mode from a user
- FIG. 4 illustrates the interface during the programming of intensive cooling times by a user
- Fig. 6 shows an example of a possible distribution of times of intensive cooling
- Fig. 1 is a schematic representation of a refrigerator, in particular one
- the refrigerator comprises one or more of a heat-insulating housing 1 surrounded storage chambers 2 for refrigerated goods and a refrigerator for cooling each storage chamber 2, in a conventional manner, a compressor 3 for refrigerant, a condenser 4, in which from the compressor 3 adiabatically compacted Refrigerant gives off heat to the environment and condenses, as well as a
- Evaporator 5 in which the condensed refrigerant relaxes under heat absorption and the resulting refrigerant vapor is sucked in by the compressor 3 again.
- the evaporator 5 is shown here for the sake of simplicity as a back wall evaporator, but it is understood that the invention is also any type of evaporator, especially applicable to NoFrost evaporator.
- the compressor 3 may be of any type known per se; most common is a reciprocating compressor with a driven by an electric motor piston.
- the piston, the electric motor and the refrigerant flowing between the compressor 3, the condenser 4 and the evaporator 5 generate noises that may be perceptible outside the refrigerating appliance.
- these noise sources fall away, and at most occasionally in the liquid refrigerant of the evaporator 5 ascending vapor bubbles can still lead to audible external noise.
- a control unit 6 controls the operation of the compressor 3 on the one hand based on a temperature measured by a temperature sensor 7 on the storage chamber 2 and on the other hand based on specifications that a user can enter on a user interface 8.
- the user interface 8 comprises an alphanumeric and / or graphical display element such as an LCD display 9 and a plurality of keys 10 associated with the display element 9.
- the keys 10 are better here and in the following figures For clarity, each shown separately from the display element 9, but it is understood that in a
- FIG. 2 illustrates the operation of the control unit 6 with reference to a flowchart.
- the control unit supports three operating modes of the refrigeration device, one
- Thermostat operation mode an intensive cooling operation mode and a
- the refrigeration device is in the thermostat operating mode, the steps S1 to S5 of Fig. 2 comprises.
- the steps S1 to S5 are repeated cyclically, so that the selection of one of these steps as the initial step of the method is completely arbitrary.
- the control unit 6 compares the temperature T measured by the temperature sensor 7 of the storage chamber 2 with a first upper limit temperature T +1 . In case of a
- step S3 Exceeding this limit temperature T +1 . the compressor is switched on (S2), so that the temperature T decreases again.
- step S3 the temperature T is compared with a first lower limit temperature T "1 , and in case of underrun, the compressor 3 is again turned off (S4)
- One of the limit temperatures, T +1 or T " 1 is set by a user on the User interface 8 adjustable; the difference between the limit temperatures is generally fixed. In that regard, the method corresponds to a conventional thermostat control of the temperature in the storage chamber. 2
- step S5 it is checked whether there is a desire for silent operation of the refrigeration device, where, as will be explained in more detail below, such a request can emanate both from the user and from a timer 6a forming part of the control unit 6. If there is no such request, it is checked in step S6 if there is a request of the user or the timer 6a after intensive cooling operation. If so, the compressor is turned on in step S7. The compressor 3 remains in operation independently of the temperature T prevailing in the storage chamber 2 until it is determined either in step S8 that a predetermined maximum permissible duration of the time is reached
- step S9 Intensive cooling operation has elapsed, or it is determined in step S9 that now a desire - which in turn may emanate from the user or the timer 6a - after silent operation of the refrigerator is present. While at the expiration of the allowable duration, the process returns from step S7 to the starting point S1, i. the device returns to the thermostat operating mode, it branches to a step S10 in the case of a desire for silent operation, as well as possibly in step S5.
- step S10 the temperature T of the storage chamber is changed to a second upper one
- the refrigerator produces virtually no operating noise
- it is programmable to generate commands to transition to the intensive cooling mode of operation and, optionally, silent mode of operation at regularly recurring times, and corresponding commands may also be entered manually at any time at the user interface 8.
- Fig. 3 shows an enlarged view of the user interface 8 with the display element 9 and the associated keys 10 in a state in which the user interface 8 is ready to accept inputs of the user concerning intensive cooling operation.
- a variable status field 1 which is currently labeled with "intensive cooling”, shows the user that inputs which he can currently make at the keys 10 refer to the intensive cooling mode
- buttons 10 adjacent circle symbols 13 to 17 each indicate an activated / selected or deactivated / deselected state.
- the symbols 13, 14 are, as can be seen on a respectively adjacent lettering, associated with a refrigerator compartment or freezer compartment; both appear as a solid circle to make it clear to the user that he is currently using the buttons 10 on the right side of the screen
- User interface 8 can affect both subjects simultaneously. If the user wants to make settings for only one of the subjects, he can by pressing switch the button 10 respectively adjacent to the symbol 13 or 14 between the selected and the deselected state of the relevant compartment.
- Intensive cooling mode is currently off, that is, the refrigerator is in the thermostat operating mode. If the user were to depress the key 10 adjacent to the symbol 15, then a full circle would appear in the symbol 15 to indicate that the intensive cooling mode is turned on, since the refrigerator and freezer are selected for both compartments, and the symbol 17 would appear as an empty circle.
- the user can not only turn on and off the intensive cooling operation mode, but also, by means of the key adjacent to the symbol 16, select an automatic mode in which the timer 6a controls whether or not to which Time is switched to the intensive cooling mode of operation.
- the switchover times may be programmed by a user at the interface 8 after having led the interface 8 to display the menu shown in FIG. 4, guided by one or more menus not shown in the attached figures.
- the Thursday is selected, as can be recognized by the way in which the other days of the week deviate.
- the user can increment and decrement the time at which he is to start the intensive cooling mode of operation on the selected day of the week.
- the confirmation of this way selected time can be done by pressing an OK button or by
- the timer 6a if specified in the menu of Fig. 3 automatic operation for at least one compartment of the refrigerator, every time on the specified day of the week at the selected time a command that the control unit branch from S6 to S7 in the process of FIG. 2.
- FIG. 5 shows in the form of a screenshot of the user interface 8 an exemplary overview of user-set times for the intensive cooling operation. Whether the user interface 8 is actually able to display an overview similar to that shown here is not for the functioning of the refrigerator
- Arrow symbols 19, 20 adjacent keys 10 changeable. If the user purchases food on the way home from work on Tuesdays and Fridays, he expediently selects a time, as shown here, at 5.30 pm on Tuesdays and at 3.00 pm on Fridays, for the start of intensive refrigeration, the long one is enough before his expected homecoming, so that when he arrives at home and loads the refrigerator with his purchases, this has cooled significantly below T "1. Thus, the purchases are quickly cooled down after being charged into the refrigerator, and the duration of the
- Break in the cold chain is kept to a minimum.
- the duration of the intensive cooling operation is not specified in the overview of FIG. 5, since it is permanently predetermined by an operating program of the control unit 6.
- the timer 6a generates a command to switch to the intensive cooling operation mode before the actually programmed time, wherein the difference between the two times is determined in each case matching the power of the refrigerator. So the user does not have to worry about how long before that
- the intensive cooling operation can be used both to rapidly cool newly stored refrigerated goods, and then to maintain a silent mode of operation for a long time, in which the control unit 6 in FIG Operation remains, all motorized components of the refrigerator whose movement generates operating noise, in particular the compressor 3 remain switched off, without causing excessive heating of the storage chamber 2.
- the user at the user interface 8 has the opportunity to program times at which the refrigeration appliance is to enter the silent mode of operation in a manner similar to that described with reference to FIG. 4 for the start times of the intensive refrigeration operation.
- FIG. 6 An example of a resulting overview of programmed times is shown in FIG. 6.
- the user has indicated, in each case by hatched fields, on the working days from Monday to Friday, in each case a beginning of the
- control unit 6 has this programming automatically supplemented by start times of
- Temperature of the storage chamber 2 is well below T 1 and the compressor 3 can remain off for a long time.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011081952A DE102011081952A1 (de) | 2011-09-01 | 2011-09-01 | Kältegerät mit Intensivkühlfunktion |
| PCT/EP2012/066884 WO2013030292A2 (de) | 2011-09-01 | 2012-08-30 | Kältegerät mit intensivkühlfunktion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2756246A2 true EP2756246A2 (de) | 2014-07-23 |
| EP2756246B1 EP2756246B1 (de) | 2016-01-06 |
Family
ID=46851432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12759061.0A Not-in-force EP2756246B1 (de) | 2011-09-01 | 2012-08-30 | Kältegerät mit intensivkühlfunktion |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9528755B2 (de) |
| EP (1) | EP2756246B1 (de) |
| CN (1) | CN103765139B (de) |
| DE (1) | DE102011081952A1 (de) |
| WO (1) | WO2013030292A2 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015216628A1 (de) * | 2015-08-31 | 2017-03-02 | BSH Hausgeräte GmbH | Haushaltsgerät mit einer verbesserten Bedienbarkeit einer als Touchscreen ausgestalteten Bedieneinrichtung |
| DE102015216629A1 (de) * | 2015-08-31 | 2017-03-02 | BSH Hausgeräte GmbH | Haushaltsgerät mit einer als externer oder interner Touchscreen ausgestalteten Bedieneinrichtung |
| CN106813454A (zh) * | 2015-11-30 | 2017-06-09 | 青岛海尔智能技术研发有限公司 | 物品冷藏监控方法及制冷设备 |
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| US4967568A (en) * | 1988-03-25 | 1990-11-06 | General Electric Company | Control system, method of operating an atmospheric cooling apparatus and atmospheric cooling apparatus |
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| DE19750053A1 (de) * | 1997-11-12 | 1999-05-20 | Etc Energietechnik Und Chemie | Haushaltskühlgerät |
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| US6148625A (en) * | 1999-05-11 | 2000-11-21 | Camp; Vernon D. | Frost and freeze-up prevention control system for improving cooling system efficiency in vending machines |
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| WO2013136665A1 (ja) * | 2012-03-13 | 2013-09-19 | パナソニック株式会社 | 冷蔵庫および情報システム |
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-
2011
- 2011-09-01 DE DE102011081952A patent/DE102011081952A1/de not_active Withdrawn
-
2012
- 2012-08-30 CN CN201280042034.6A patent/CN103765139B/zh not_active Expired - Fee Related
- 2012-08-30 WO PCT/EP2012/066884 patent/WO2013030292A2/de not_active Ceased
- 2012-08-30 EP EP12759061.0A patent/EP2756246B1/de not_active Not-in-force
- 2012-08-30 US US14/241,660 patent/US9528755B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013030292A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013030292A2 (de) | 2013-03-07 |
| CN103765139B (zh) | 2016-04-20 |
| WO2013030292A3 (de) | 2013-05-23 |
| US20140190193A1 (en) | 2014-07-10 |
| US9528755B2 (en) | 2016-12-27 |
| EP2756246B1 (de) | 2016-01-06 |
| CN103765139A (zh) | 2014-04-30 |
| DE102011081952A1 (de) | 2013-03-07 |
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