EP2756242A2 - Appareil de froid destiné à un fonctionnement silencieux - Google Patents

Appareil de froid destiné à un fonctionnement silencieux

Info

Publication number
EP2756242A2
EP2756242A2 EP12748508.4A EP12748508A EP2756242A2 EP 2756242 A2 EP2756242 A2 EP 2756242A2 EP 12748508 A EP12748508 A EP 12748508A EP 2756242 A2 EP2756242 A2 EP 2756242A2
Authority
EP
European Patent Office
Prior art keywords
control unit
operating mode
storage chamber
temperature
limit temperature
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
Application number
EP12748508.4A
Other languages
German (de)
English (en)
Other versions
EP2756242B1 (fr
Inventor
Christoph Becke
Max Eicher
Swetlana Gorodezki
Maike Kirschbaum
Ralph Staud
Thomas Tischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL12748508T priority Critical patent/PL2756242T3/pl
Publication of EP2756242A2 publication Critical patent/EP2756242A2/fr
Application granted granted Critical
Publication of EP2756242B1 publication Critical patent/EP2756242B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Definitions

  • the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with a storage chamber, a cooling chamber cooling the storage chamber, a
  • Temperature sensor for detecting the temperature of the storage chamber and a
  • Control unit that controls the operation of the refrigerator based on the temperature detected by the temperature sensor. In normal operation of a refrigerator, the works
  • Control unit as a hysteresis comparator, which the chiller at
  • Exceeding a first upper limit temperature of the storage chamber takes into operation and sets it out of operation as soon as a first lower limit temperature is reached, which is lower by a few degrees than the first upper limit temperature. So change
  • Refrigeration generator a temperature sensor for detecting the temperature of the storage chamber and a control unit which is adapted, in a thermostat operating mode, the refrigerator when exceeding a first upper limit temperature in the
  • the control unit temporarily in an operating mode can be switched, in which the operation of the refrigerator is locked even when exceeding the first upper limit temperature and which is referred to as a result of non-operation of the refrigerator in the following as a low-noise operating mode.
  • the blocking of the operation of the refrigerator leads to an interruption of the cooling of the storage chamber, which can be accepted, however, as long as the low-noise mode of operation is only temporarily active and the refrigerator automatically in the
  • Thermostat operating mode returns.
  • control unit may comprise a user interface via which a user may wish to enter the silent mode of operation so that the user, as he / she is aware of the noise emission of the user
  • Refrigerated unit feels disturbed, has the ability to reduce it with immediate effect.
  • control unit may comprise a timer, which is set up at a time programmed in the timer, possibly periodically recurring time a desire to switch to the low-noise
  • the programmed time is each a time that is most likely to require quiet operation, for example, the time of daily breakfast, which is taken by many users in the kitchen, in close proximity to the refrigerator.
  • the refrigerator should have a user interface through which the user can program the timer according to his own needs. This can be the same user interface that the user can use to prompt for immediate noise reduction.
  • the control unit may be configured to switch back to the thermostat operating mode from the low-noise operation mode each after a predetermined waiting time.
  • a predetermined waiting time Preferably, however, is the alternative that always in the
  • Thermostat operating mode is switched back when the temperature in the
  • Storage chamber reaches a second upper limit temperature, which is higher than the first upper limit temperature.
  • Storage chamber is open for a long time or a large amount of warm goods to be cooled is invited.
  • the controller may be configured to unconditionally comply with a desire to switch to the silent mode of operation, whether it is uttered by the user or by the timer, the concept of desire may be that its recipient, unlike a command, may can also turn out. This freedom of choice is also advantageous in the invention, so preferably the control unit should be arranged to ignore a desire to switch to the low noise mode of operation when the temperature in the storage chamber is above a third upper limit temperature higher than the first upper one
  • Limit temperature is and can be identical to the second upper limit temperature.
  • the control unit may maintain the thermostat operating mode against an expressed request if a follower led to excessive heating of the storage chamber.
  • the user interface should be configured to display a message that signals a user that the request is being ignored. It is useful to display such a message, regardless of whether the request was voiced by the user or by the timer, since this gives the user the opportunity to verify the correct functioning of the refrigeration device when he or she hears the operating noise of the refrigerator at one time hears that he does not expect.
  • the controller may be further configured to ignore a desire to switch to the low noise mode of operation when a quick cool mode is activated because a desire for rapid cooling on the one hand and the desire for low noise operation, on the other hand, can not be simultaneously satisfied.
  • control unit expediently gives priority to the rapid cooling mode, since, when it has been activated, it will generally be necessary for the protection of the goods to be chilled, and the associated temporary noise development can be accepted by the user. If the user disagrees with this scheme, it may give him the opportunity be given to turn off the rapid cooling mode again and then to select the low-noise mode of operation.
  • the refrigerating appliance generally falls below a first lower limit temperature
  • control unit can also temporarily in a
  • Pre-cooling mode be switchable, in which the operation of the refrigerator is maintained even when the first lower limit temperature is exceeded.
  • the temperature in the storage chamber may be reduced from the thermostat mode of operation so that the amount of time that the low noise mode of operation can be maintained will not be excessive Warming of the storage chamber comes, can be extended. It is convenient for the user if, at the completion of the pre-cooling operation mode, the control unit automatically switches to the quiet operation mode.
  • Vorkühl plantesmodus can serve in particular the falling below a second lower limit temperature, which is lower than the first lower limit temperature.
  • FIG. 1 is a block diagram of a refrigerator to which the present invention is applicable;
  • 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 during the input of a
  • FIG. 4 shows the user interface after input of the request, if this sequence can be performed
  • Fig. 5 shows the user interface if the request can not be followed
  • FIG. 6 is a view similar to FIG. 3 according to a further developed embodiment of the invention.
  • FIG. 7 shows the user interface during the programming of times when low-noise operation is desired
  • 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 chamber 2 for refrigerated goods and a chiller for cooling the storage chamber 2, in a conventional manner, a compressor 3 for refrigerant, a condenser 4, in the adiabatically compressed by the compressor 3 refrigerant Gives heat to the environment and thereby condenses, and an 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
  • the keys can also be formed by areas of the display surface itself.
  • 2 illustrates, with reference to a flowchart, the operation of the control unit 6. Unless otherwise set by a user, the refrigeration device is in a thermostat operating mode comprising the steps S1 to S5 of FIG. 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. In step S1, the compares
  • Control unit 6 the measured temperature of the temperature sensor 7 T of the storage chamber 2 with a first upper limit temperature T +1 .
  • the compressor is switched on (S2), so that the temperature T decreases again.
  • the temperature T becomes a first lower one Limit temperature T 1 is compared, and in the case of falling below the compressor 3 is turned off again (S4).
  • One of the limit temperatures, T +1 or T "1 is adjustable by a user at the user interface 8, the difference between the
  • Limit temperatures is generally fixed.
  • 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 low-noise 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 forming part of the control unit 6. If there is such a request, it is checked in step S6 if the temperature T exceeds a second upper limit temperature T + 2 which is higher than the first limit temperature T + 1 . In general, if the refrigerator has previously been in the thermostat operating mode for a long time, this will not be the case, so that the method branches to step S7. In special conditions, for
  • T +3 is chosen so that a short-term reaching this temperature does not affect the durability of the refrigerated goods in the storage chamber 2 appreciably, while at an even higher temperature such an impairment can not be excluded.
  • T +3 may be about 14 ° C, while T + 1 will typically be in the range between + 5 ° C and + 10 ° C.
  • step S6 may also be omitted, and instead the method jumps from step S5 directly to S7.
  • Simplification is equivalent to matching the limit temperatures T + 2 and T + 3 . If the temperature T is below T + 3 in step S7 (which will always be the case if step S6 has been executed immediately before), then the compressor 3 is turned off (S8) unless it is already off, and the steps S7, S8 repeat until the temperature T of the storage chamber 2 has risen to T +3 . Thereafter, the process automatically returns to step S1 of the thermostat operation mode.
  • 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 satisfy the user's desire for transition to the low noise
  • a status field 1 1 labeled "Silent” shows the user that inputs which he can currently make at the keys 10 are referred to as “silent” or somewhat simplifying
  • buttons 10 Of the total of six buttons 10 at this stage only those on the left side of the display element 9 is assigned a function that the user by a respective adjacent to the respective button 10 on the
  • Display element 9 illustrated symbol 12, 13 and 14 is illustrated.
  • a central area of the display element 9 is used to display explanatory information to the user.
  • Arrow 12 illustrates to the user that the adjacent key 10 is for exiting the displayed menu and returning to a parent menu.
  • An empty circle 13 next to the word "on”, on the one hand, indicates to the user that the low noise or silent mode of operation is selectable via the adjacent key 10 and that it is currently unchecked, instead, adjacent to the symbol 14 is a full circle to the word "off", to recognize that the
  • step S6 shows that the silent operating mode is allowed to be activated
  • the symbol 13 becomes a solid circle and the symbol 14 becomes an empty circle, and it appears in the central region of FIG Display element 9 next to the symbols 13, 14, a sign 15, which confirms the user to activate the low-noise mode of operation and at the same time indicates that the return to Thermostat istus takes place automatically.
  • the user may be aware of this information by pressing the lower button 10 on the right Confirm page of the user interface 8, which causes the sign 15 disappears again.
  • the change of the operating mode remains recognizable by the reversed appearance of the symbols 13, 14.
  • step S6 If the test of step S6 shows that a transition to the silent operating mode is not possible, then this fact is also communicated to the user by a sign 16, as shown in FIG. 5, and the symbols 13, 14 remain opposite to FIG. 3 unchanged.
  • FIG. 6 shows a view of the user interface 8 in a state analogous to FIG. 3 according to a further developed embodiment of the invention.
  • this embodiment in addition to the possibilities to turn on the noise reduced mode on the icon 13 adjacent button 10 or turn it off via the icon 14 adjacent button 10, also the possibility of an automatic, timed switching over a symbol 17 for selection. If the automatic switching is selected, the user is given the opportunity, via the menu shown in FIG. 7, of specifying start times at which the noise-reduced operation should respectively begin.
  • the two middle buttons 10 on both sides of the display element 9 the user can select a day of the week on which he wants to specify a start time for the noise-reduced mode. In the illustration of FIG. 7, the Thursday is selected, as can be recognized by the way in which the other days of the week deviate.
  • the user may increment and decrement the time at which the low-noise operating mode is to commence on the selected day of the week.
  • the confirmation of a time selected in this way can be done by pressing an OK button or by selecting another day of the week. If the user has successfully specified at least one day of the week and one time, the timer of the control unit 6 generates a changeover request every time on the specified day of the week at the selected time, which causes the control unit 6 to branch from step S5 in Fig. 2 to step S6.
  • Fig. 8 is a flowchart of a further developed operation of the control unit 6 which supports such precooling. Steps S1 to S8 of this method are the same as in the flowchart of Fig. 2 and will not be described again.
  • step S9 a check is made as to whether pre-cooling of the storage chamber 2 is required. If this is not the case, then the method returns to step S1.
  • the determination that pre-cooling is required may be made in step S9 based on the operation of keys 10 of the user interface 8 by a user or based on a signal from the timer. It is not necessary for the user to do this analogously to the procedure described with reference to FIG. 7
  • Start times programmed for pre-cooling Rather, it can be conveniently provided that the timer generates a signal for requesting the pre-cooling at a fixed time interval before the programmed beginning of the low-noise operation.
  • control unit 6 Upon determination that it is to be pre-cooled, the control unit 6 responds by turning on the compressor (S10).
  • the compressor remains switched on until it is determined either in step S1 1 that the temperature T to a second
  • Limit temperature T "2 is lower than the lower limit temperature T " 1 in the thermostat operating mode, or that the programmed time is reached for switching to the low-noise operating mode. Once one of these conditions is met, the process branches to step S6.

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

L'invention concerne un appareil de froid, notamment un appareil de froid domestique, comprenant un compartiment de stockage, un groupe frigorifique refroidissant le compartiment de stockage, un capteur de température pour détecter la température régnant dans le compartiment de stockage, un dispositif de commande qui est conçu pour, en mode thermostat (S1 -S5), assurer la mise en marche (S2) du groupe frigorifique en cas de dépassement d'une première température limite supérieure (T+1) dans le compartiment de stockage. L'unité de commande est temporairement commutable dans un mode de fonctionnement silencieux (S7, S8) dans lequel le fonctionnement du groupe frigorifique peut être bloqué même en cas de dépassement de la première température limite supérieure (T+1).
EP12748508.4A 2011-09-01 2012-08-22 Appareil de froid destiné à un fonctionnement silencieux Active EP2756242B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12748508T PL2756242T3 (pl) 2011-09-01 2012-08-22 Urządzenie chłodnicze do pracy cichobieżnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081953A DE102011081953A1 (de) 2011-09-01 2011-09-01 Kältegerät für geräuscharmen Betrieb
PCT/EP2012/066346 WO2013030065A2 (fr) 2011-09-01 2012-08-22 Appareil de froid destiné à un fonctionnement silencieux

Publications (2)

Publication Number Publication Date
EP2756242A2 true EP2756242A2 (fr) 2014-07-23
EP2756242B1 EP2756242B1 (fr) 2015-10-14

Family

ID=46704691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12748508.4A Active EP2756242B1 (fr) 2011-09-01 2012-08-22 Appareil de froid destiné à un fonctionnement silencieux

Country Status (5)

Country Link
EP (1) EP2756242B1 (fr)
CN (1) CN103842752B (fr)
DE (1) DE102011081953A1 (fr)
PL (1) PL2756242T3 (fr)
WO (1) WO2013030065A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111076491B (zh) * 2018-10-22 2020-10-30 海尔智家股份有限公司 冰箱及其控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960001022B1 (ko) * 1989-12-28 1996-01-17 삼성전자주식회사 냉장고의 운전제어방법
TR200103799T2 (tr) * 1999-06-04 2002-06-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Ekonomik modda çalışan buzdolabı.
KR100609849B1 (ko) * 2000-02-12 2006-08-09 삼성전자주식회사 냉장고 및 그 제어방법
CN1690630A (zh) * 2004-04-28 2005-11-02 乐金电子(天津)电器有限公司 冰箱的温度控制方法
CN100378420C (zh) * 2005-09-13 2008-04-02 海信集团有限公司 变频冰箱及其控制方法
KR100773472B1 (ko) * 2005-09-13 2007-11-05 최철훈 조도에 따라서 냉장고의 동작을 제어하는 방법 및 이를이용한 냉장고
EP2116801B1 (fr) * 2008-05-06 2018-11-14 Indel B S.p.A. Unité de réfrigération et commande correspondante et ensemble de gestion

Also Published As

Publication number Publication date
DE102011081953A1 (de) 2013-03-07
CN103842752A (zh) 2014-06-04
EP2756242B1 (fr) 2015-10-14
WO2013030065A2 (fr) 2013-03-07
WO2013030065A3 (fr) 2013-06-20
CN103842752B (zh) 2015-12-23
PL2756242T3 (pl) 2016-03-31

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