EP2848881B1 - Appareil de réfrigération et/ou de congélation - Google Patents

Appareil de réfrigération et/ou de congélation Download PDF

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Publication number
EP2848881B1
EP2848881B1 EP14184350.8A EP14184350A EP2848881B1 EP 2848881 B1 EP2848881 B1 EP 2848881B1 EP 14184350 A EP14184350 A EP 14184350A EP 2848881 B1 EP2848881 B1 EP 2848881B1
Authority
EP
European Patent Office
Prior art keywords
energy consumption
refrigeration
freezer
measuring device
display device
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.)
Not-in-force
Application number
EP14184350.8A
Other languages
German (de)
English (en)
Other versions
EP2848881A2 (fr
EP2848881A3 (fr
Inventor
Thomas Ertel
Herbert Gerner
Michael Schick
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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 Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP2848881A2 publication Critical patent/EP2848881A2/fr
Publication of EP2848881A3 publication Critical patent/EP2848881A3/fr
Application granted granted Critical
Publication of EP2848881B1 publication Critical patent/EP2848881B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D2400/36—Visual displays

Definitions

  • the present invention relates to a refrigerator and / or freezer.
  • the EP1744248A1 A1 discloses a device having the features of the preamble of claim 1.
  • the US 4,672,555 A shows a digital monitoring device for analog circuits, in which voltage and current of each circuit are sampled at predetermined intervals.
  • the US2006 / 0123807 A1 , the WO 2008/072932 A1 , the CN 202 254 626 U and the CN 201 926 245 U each describe a refrigerator, which also includes all the features of the preamble of claim 1.
  • the present invention is therefore based on the object to provide a refrigerator and / or freezer, which gives the user the ability to assess its behavior in terms of energy consumption of the device and possibly to optimize.
  • the refrigerator and / or freezer is designed with at least one measuring device which is designed such that it determines the energy consumption of one or more components of the device or the energy consumption of the entire device and that the device further comprises at least one display device , which is in data connection with the measuring device and outputs the determined by the measuring device energy consumption for a user recognizable on the display device.
  • the device it is possible for the device to have transmission means by means of which the energy consumption, which was determined by the measuring device, is transmitted to a display device, preferably wirelessly.
  • the user of the device can recognize what energy consumption is present and thereby estimate influences of device settings, such as the setting of the temperature setpoint or one's own behavior on the energy consumption.
  • device settings such as the setting of the temperature setpoint or one's own behavior on the energy consumption.
  • the user preferably without the purchase of other, device-specific or even universal accessories, can learn how the power consumption of his refrigerator or freezer and how its use behavior affects this.
  • the monitoring of energy consumption extends not only over a short measurement period, to which an energy meter would normally be connected, but over the entire life of the device. In this way, it is also possible to determine whether a change in the energy consumption has occurred in the course of the life of the device with constant user behavior. Also in this case, the user can intervene and, for example, replace a defective door seal, etc., which leads to increased heat input into the device.
  • the term "energy consumption” is to be understood generally and includes any quantity that is correlated with the energy consumption, such as the voltage, the current, the power, the work, etc.
  • the measuring devices Current, voltage, power factor (preferably cos phi), active power, apparent power, reactive power and the term of one or more components.
  • the arrangement of the measuring device can be chosen such that the measuring device for the entire device is integrated on the device electronics.
  • device electronics refers to the control or regulation element of the overall device, which controls or regulates its operation. It is also conceivable that the electronics or the controls or regulations of the individual components are integrated with measuring devices on said device electronics. Also, the measuring devices can be integrated in the respective components. For example, it is conceivable that a measuring device for measuring the energy consumption is part of the component, e.g. Part of the inverter of a variable speed compressor.
  • the measuring device is arranged in a separate electronics, which is connected in a suitable manner via a data connection with the device electronics.
  • buffers for smoothing the energy consumption between the measuring device and the display device.
  • These buffers receive a current measured value from a plurality of components or from a plurality of measuring devices, however, they do not pass it on unchanged to the display device, but instead smooth out or deliver only a partial amount of the current value of the energy consumption to the display device. In this way it can be avoided that short-term high energy consumption, as may occur, for example, when operating a defrost heater, not result in a high displayed value, but in the display of a lower, but displayed over a longer period of energy consumption increase.
  • the current value of the energy consumption is transferred from the buffer to the low-pass filter.
  • the low-pass filter for example, performs a smoothing, so that, for example, the sum or the mean value or an exponentially smoothed value is transferred from the low-pass filter to the display device.
  • the low-pass filter all mathematical filters are conceivable, such as a low-pass filter for calculating the moving average, a low-pass filter for exponential smoothing, a rectangular filter, a sinc filter or a Gaussian filter.
  • At least one calculation device is provided for calculating the energy consumption.
  • This can for example be designed such that the energy consumption of one or more components of the device is determined based on the duration of the component in question. So it is conceivable, for example, that a power consumption is deposited on the components and can be queried there via a data connection. The energy consumption then results from the product of power consumption and runtime. Also, a parameterized mileage of components is conceivable. So it is e.g. possible that the individual device or the individual component in the production or final test is calibrated by measuring the power consumption and storage on the device electronics, so that the power consumption is known. It is also conceivable that the transmission of this data to a server for storage and display takes place, so that the power consumption can be retrieved from there.
  • the calculation device can also be designed such that the energy consumption of several components is added and preferably buffering takes place. In this case, the energy consumption of several components are measured, buffered and then optionally supplied via a low pass the display device.
  • a buffer is used for special events, such as for defrost, it is conceivable that this buffer will cause a smoothing by a continuous transfer of the buffer into the regular power consumption, which is then ultimately displayed on the display device.
  • the energy consumption is smoothed and / or averaged by a low-pass filter and / or by a buffer, so that power peaks are not displayed, but an average or smoothed energy consumption.
  • the energy consumption in the form of an average e.g. the power consumption over a period of e.g. 24 hours, 7 days, one month, one year, over which device life in years or over any other user-settable period of time is displayed.
  • the type of representation can be done by a bar chart, by a bar chart, by the color scheme or by a symbolism.
  • a color design it is conceivable, for example, that a green light or a green background of a field stands for low consumption or for an ecological mode of operation, for example. the color blue for a high cooling capacity or a higher consumption.
  • a symbolism for example, green leaves or ice crystals, snowflakes, ice cubes, etc. can be displayed, which are each associated with a specific energy consumption.
  • the device display is considered, i. the display, which is already present on the device or even a web browser that is powered by a server, a smartphone on which a corresponding app is located or the projection on the device or on the surface in a device environment, such as a wall ,
  • the display device is in a data connection with one or more units, wherein these units are designed so that by means of this the energy costs and / or one or more statistics can be transmitted to the display device.
  • energy costs for example in cents / kWh are entered or present
  • an automatic transmission of electricity prices from a data source, for example, on the Internet or that an energy management gateway, for example, to a photovoltaic system is present, then the information is provided, for example, that solar power is available.
  • a time source e.g. an internal operating hours clock is displayed or the transmission of a time signal from an external data source, such as from the Internet.
  • statistics can be displayed, which, for example, concern the energy consumption, the usage behavior, the number and duration of the door openings, temperature alarms, loss of use or also the additional consumption by special functions, such as a rapid cooling function.
  • the device has at least one evaluation device which is designed such that it evaluates the energy consumption determined by the at least one measuring device and transmits one or more recommendations to the user or to the display device.
  • the recommendation is made that door openings are made shorter or less frequent, possibly associated with an automatic or manual adjustment of the alarm triggering time when the door is open, that as a further recommendation, the temperature setting is changed, creating an automatic or manual adjustment of the temperature or the setpoint may be accompanied or that consumers are turned on or off, such as light, the ice maker, etc ..
  • An added value for the user may also be that the tendency of the change in energy consumption is indicated or that the user is given feedback on changing settings, so that he can quickly recognize whether the measure taken is advantageous in terms of energy consumption and if so, what energy savings can be expected.
  • the evaluation device can also be designed such that it outputs a prognosis. Further advantages and details of the invention will be explained in more detail with reference to an embodiment shown in the drawings.
  • FIG. 1 various components 10, 20, 30, 40 of a refrigerator or freezer are shown symbolically, such as the compressor 10, the fan 20, the defrost heater 30 and the ice cube maker 40th
  • the value for the energy consumption then reaches the display device 300 via a low-pass filter 200.
  • the embodiment according to FIG. 2 differs from the according to FIG. 1 in that different buffers 110, 120 and 130 are provided, which are connected to different components or receive the measured values of different components.
  • the buffer 110 serves as a buffer for periodic events, such as operation of the compressor 10, the fan 20, another fan 22, the buffer 120 as a buffer for special events such as the operation of the defrost heater 30 or the ice cube maker 40 and the buffer 130 as a further buffer for further components 80, 90.
  • the energy consumption is transmitted to a display device 300 via low-pass filters 210, 220, 230 and displayed to the user accordingly.
  • the buffers are fed the individual measured values after a summation S.
  • display device has any means by which the user can be informed optically, acoustically, etc., of a value representative of the energy consumption.
  • an evaluation device is provided, which may be part of the device or an external unit and is designed such that the energy consumption is evaluated, preferably as a function of user behavior and is designed such that the user preferably also via the display device 300th Recommendations are given as to how the behavior can be changed to reduce energy consumption.
  • the evaluation device is designed so that a measure by the user, such as the adjustment of the temperature setpoint is evaluated to the extent that this affects the energy consumption.
  • This result of the evaluation is also preferably displayed to the user.
  • the user can enter various settings and read their influence on the energy consumption. If user side If the user agrees, the user can confirm this setting or the new setting becomes effective immediately, ie even without such confirmation.
  • FIG. 3 shows an example of a possible operation of a low-pass filter:
  • Reference numeral 110 denotes a buffer in which, for example, the current energy consumption value of 2.2 Wh is stored.
  • the reference numeral 210 denotes a low-pass filter disposed between the buffer 110 and the display device 300.
  • a current energy consumption value is transferred from the buffer to a FIFO register of length n.
  • the oldest value is deleted from the FIFO register.
  • the sum or a mean value is formed from which the energy consumption can be calculated.
  • the displayed energy consumption corresponds to the moving average over some calculation periods.
  • FIG. 4 is a calculation example for a low-pass exponential smoothing evident: To calculate the energy consumption, in each calculation cycle, an energy consumption value from the buffer (EV_Buffer) is offset against the currently displayed energy consumption value (EV_akt) from the previous calculation cycle in order to obtain the new energy consumption value (EV new).
  • the weighting factor (GF) preferably corresponds to a power of two.
  • the energy consumption EV_new is then displayed after further conversion.

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  • 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)
  • Arrangements For Transmission Of Measured Signals (AREA)

Claims (9)

  1. Appareil de refroidissement et/ou de congélation avec
    un dispositif de mesure, qui est configuré pour déterminer la consommation d'énergie d'un ou de plusieurs composants (10, 20, 30, 40) de l'appareil ou la consommation d'énergie de l'ensemble de l'appareil, et
    un dispositif d'affichage (300), qui fait partie intégrante de l'appareil, qui est en communication avec le dispositif de mesure et qui est configuré pour éditer la consommation d'énergie déterminée du côté du dispositif de mesure de manière identifiable pour un utilisateur sur le dispositif d'affichage, ou avec des moyens de transmission, qui sont en communication avec le dispositif de mesure et qui sont configurés pour transmettre à un dispositif d'affichage servant à afficher la consommation d'énergie la consommation d'énergie déterminée du côté du dispositif de mesure,
    caractérisé en ce que
    plusieurs tampons (110, 120, 130) servant à lisser dans le temps la consommation d'énergie sont disposés entre le dispositif de mesure et le dispositif d'affichage (300), les nombreux tampons (110, 120, 130) étant en communication avec des dispositifs de mesure de groupes différents de composants (10, 20, 30, 40), et les différents groupes de composants (10, 20, 30, 40) présentent un comportement temporellement différent en ce qui concerne la consommation d'énergie.
  2. Appareil de refroidissement et/ou de congélation selon la revendication 1, caractérisé en ce que le dispositif de mesure est réalisé de telle manière qu'il mesure un ou plusieurs des paramètres suivants : le courant, la tension, le facteur de puissance, la puissance active, la puissante apparente, la puissance réactive, le temps de fonctionnement.
  3. Appareil de refroidissement et/ou de congélation selon la revendication 1 ou 2, caractérisé en ce que le dispositif de mesure est intégré sur l'électronique d'appareil, que le dispositif de mesure est intégré dans le composant, dont la consommation d'énergie est détectée par le dispositif de mesure, que l'électronique d'un composant est intégrée avec le dispositif de mesure servant à détecter la consommation d'énergie dudit composant sur l'électronique d'appareil, ou que le dispositif de mesure est disposé dans une électronique séparée, qui est de préférence en connexion de données avec l'électronique d'appareil.
  4. Appareil de refroidissement et/ou de congélation selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de calcul est prévu pour calculer la consommation d'énergie, dans lequel le dispositif de calcul est réalisé de telle manière que la consommation d'énergie d'un ou de plusieurs composants de l'appareil est déterminée à l'aide du temps de fonctionnement du composant en question et/ou que les consommations d'énergie de plusieurs composants sont additionnées et qu'une mise en tampon a lieu.
  5. Appareil de refroidissement et/ou de congélation selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'affichage (300) est réalisé de telle manière que la consommation d'énergie est représentée sous la forme d'un diagramme en bâtons ou à barres, sous la forme d'une configuration en couleurs ou sous la forme d'une symbolique.
  6. Appareil de refroidissement et/ou de congélation selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'affichage (300) est formé par l'affichage de l'appareil, par un écran d'ordinateur, par un appareil mobile, en particulier par un téléphone intelligent ou par une surface, sur laquelle la consommation d'énergie est projetée.
  7. Appareil de refroidissement et/ou de congélation selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'affichage (300) est en connexion de données avec une ou plusieurs unités, dans lequel lesdites unités sont réalisées de telle manière que les coûts énergétiques et/ou une ou plusieurs statistiques sont transmis au dispositif d'affichage au moyen des unités.
  8. Appareil de refroidissement et/ou de congélation selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif d'évaluation est prévu, qui est réalisé de telle manière que ce dernier évalue la consommation d'énergie déterminée par un dispositif de mesure et émet une ou plusieurs recommandations.
  9. Système comprenant au moins un appareil de refroidissement et/ou de congélation selon l'une quelconque des revendications précédentes ainsi qu'un dispositif d'affichage (300), qui ne fait pas partie intégrante de l'appareil de refroidissement et/ou de congélation, dans lequel il est prévu de préférence que les moyens de transmission sont réalisés de telle manière que transmettre la consommation d'énergie aux moyens d'affichage se fait sans fil.
EP14184350.8A 2013-09-12 2014-09-11 Appareil de réfrigération et/ou de congélation Not-in-force EP2848881B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013015169 2013-09-12
DE102014008600.3A DE102014008600A1 (de) 2013-09-12 2014-06-10 Kühl- und/oder Gefriergerät

Publications (3)

Publication Number Publication Date
EP2848881A2 EP2848881A2 (fr) 2015-03-18
EP2848881A3 EP2848881A3 (fr) 2015-04-01
EP2848881B1 true EP2848881B1 (fr) 2019-01-16

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Application Number Title Priority Date Filing Date
EP14184350.8A Not-in-force EP2848881B1 (fr) 2013-09-12 2014-09-11 Appareil de réfrigération et/ou de congélation

Country Status (3)

Country Link
EP (1) EP2848881B1 (fr)
DE (1) DE102014008600A1 (fr)
ES (1) ES2720777T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021133803A1 (de) 2021-12-20 2023-06-22 Stiebel Eltron Gmbh & Co. Kg Lamellenrohr-Wärmeübertrager, Verdampfer und Wärmepumpe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1744248A1 (fr) * 2005-07-11 2007-01-17 WRAP S.p.A. Dispositif de contrôle pour un appareil électroménager

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US4672555A (en) * 1984-10-18 1987-06-09 Massachusetts Institute Of Technology Digital ac monitor
US20060123807A1 (en) * 2004-12-14 2006-06-15 Sullivan C B Apparatus and method for monitoring and displaying power usage
US20100058792A1 (en) * 2006-12-15 2010-03-11 Lg Electronics Inc. Refrigerator
ITTO20070051A1 (it) * 2007-01-24 2008-07-25 Indesit Co Spa Utenza elettrica, in particolare un elettrodomestico, relativo dispositivo ausiliario opzionale e sistema comprendente tali utenza e dispositivo
DE102009033642A1 (de) * 2009-05-28 2010-12-02 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät
WO2011105768A2 (fr) * 2010-02-23 2011-09-01 엘지전자 주식회사 Réfrigérateur comprenant un terminal et procédé de commande de celui-ci
CN201926245U (zh) * 2010-11-12 2011-08-10 合肥美菱股份有限公司 带有实时显示耗电量功能的电冰箱
DE102011017574A1 (de) * 2011-04-27 2012-10-31 BSH Bosch und Siemens Hausgeräte GmbH Energieverbrauchsermittlung für Hausgeräte in einem Verbund mehrerer Hausgeräte, die ein System bilden, sowie dazugehöriges Verfahren
CN202254626U (zh) * 2011-08-31 2012-05-30 海信容声(广东)冰箱有限公司 一种冰箱显示耗电量的显示系统

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1744248A1 (fr) * 2005-07-11 2007-01-17 WRAP S.p.A. Dispositif de contrôle pour un appareil électroménager

Also Published As

Publication number Publication date
DE102014008600A1 (de) 2015-03-12
ES2720777T3 (es) 2019-07-24
EP2848881A2 (fr) 2015-03-18
EP2848881A3 (fr) 2015-04-01

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