EP1591735A1 - Procédé de contrôle de la mise en dépression d'un compartiment de conservation sous vide - Google Patents
Procédé de contrôle de la mise en dépression d'un compartiment de conservation sous vide Download PDFInfo
- Publication number
- EP1591735A1 EP1591735A1 EP05290740A EP05290740A EP1591735A1 EP 1591735 A1 EP1591735 A1 EP 1591735A1 EP 05290740 A EP05290740 A EP 05290740A EP 05290740 A EP05290740 A EP 05290740A EP 1591735 A1 EP1591735 A1 EP 1591735A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- storage compartment
- vacuum storage
- test
- vacuum
- 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
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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
- 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
- F25D17/042—Air treating means within refrigerated spaces
-
- 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
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
Definitions
- the present invention relates to a vacuum storage compartment of a domestic refrigerator. More specifically, it relates to a method of automatically controlling the depression of such a vacuum storage compartment.
- a vacuum storage drawer device of a domestic refrigerator is described for example in the patent FR1377844.
- the device described proposes to carry out "at least one insulated, airtight cell, taken from usable space of the refrigerator, a cell in which a refrigerator is produced certain degree of vacuum, by means of combined suction devices in the refrigerator or associated with it. "This type of device allows to extend the shelf life of certain foods fragile.
- Such a system has the following constraints.
- the system operates in open loop, the user inserts the compartment in its slot and triggers the creation of vacuum. It has no information on the proper positioning of the compartment, nor on the actual realization of depression.
- An additional constraint is that the user must perform several successive and constraining steps to obtain the vacuum without knowing if the result obtained is correct. He does not know if the depression obtained is sufficient. Moreover, it has no means of checking the time of maintaining an adequate depression.
- the object of the invention is to provide a method of automatically controlling the depression of such a vacuum storage compartment.
- the invention facilitates the use of a refrigerator provided with such a compartment. Indeed, the method provides a permanent feedback to the user on the establishment of the compartment and the effectiveness of the vacuum.
- the method of automatically controlling the setting depression of such a vacuum storage compartment must be able to detect the presence of the compartment. Indeed, his presence may be synonymous with either real or bad set up. Then the control process must be able to to quickly warn the user in the event that the tightness of the compartment is not insured for any reason. Finally, he must be able to maintain a correct depression indoors of the vacuum storage compartment and to warn the user if it is impossible to do so.
- the fourth step refers to the fifth test allows, in addition, to verify the maintenance in time of the depression. But this verification could be carried out more appropriately in replacing this fourth step with another step and a test additional.
- a rise in pressure, natural after a while, in the vacuum storage compartment causes the display of the error signal before the depression of the compartment. it may or may not be acceptable at the user level.
- the frequency with which this occurs and the nature of the error signal (which can be sound) it can be interesting not to treat a natural rise of pressure by use the fourth step as described above.
- FIG. 1 there is shown a perspective view a domestic refrigerator 1 including storage compartment under vacuum 2.
- the refrigerator 1 further comprises a door 3, a interior speaker 4 and a display.
- other components of a refrigerator well known to man of art such as the cold production system as they are only not modified by the invention.
- FIG 2 there is shown storage compartment under empty 2. He gave it here a form such that its upper edge is found in an inclined plane, relative to the horizontal towards the back of the device. This upper edge comes, when closing the compartment in contact with a complementary shape inside of the enclosure.
- the interest of this form is twofold, to allow a good sealing and free passage of the elements that will be described in Figure 3. But the invention is applicable to a compartment of any other form having a seal satisfactory and allowing the installation of the elements described below.
- FIG. 3 there is shown a partial sectional view of a domestic refrigerator comprising a vacuum storage compartment 2.
- the compartment 2 is shown partially out of its housing 6.
- Said housing 6 is positioned inside the housing. enclosure 4 of the refrigerator 1.
- the housing 6 is provided with a means 9 for detecting the presence of the compartment 2 (sensor operating by Hall effect for example). It is also provided with two pressure measuring means 7 and 8, for example pressure switches, the means 7 for detecting a first pressure level and the means 8 for detecting a second pressure level.
- a device 10 enables the compartment 2 to be depressurized. This device will, in general, be a vacuum pump.
- values of interest may be, for example, for the first predetermined pressure level P 1 , of the order of 150 mbar below atmospheric pressure and, for the second predetermined pressure level P 2 , 600 mBar below atmospheric pressure.
- FIG 4 there is shown a flow chart showing a method of automatically controlling the depression of such a vacuum storage compartment.
- the pressures P 1 and P 2 have been defined above.
- the times, t 1 and t 2 can be, for example, of the order of 30 seconds for t 1 and of the order of 180 seconds for t 2 . These values are given for a compartment volume of the order of 6 liters, but of course depend on several parameters.
- FIGS. 5a to 5e represent the various possible states of the display corresponding to the steps described in the flowchart of FIG. 4.
- the display is, in the representation example chosen, composed of five symbols, a rectangular parallelepiped symbolizing the vacuum storage compartment 2 and four vertical bars. These symbols may have three states: off, on steady, or on blinking.
- the representation of these states chosen for FIGS. 5 is as follows: dashed lines for an off symbol, a bold line and a gray fill for a fixed lit symbol and a bold line without a fill for a flashing lit symbol.
- the indicator A shown in FIG. 5a, shows all the symbols extinguished and signifies the absence of a compartment.
- the B indicator shown in Figure 5b, shows the symbol of the compartment lit steady and all the bars off and means the presence of compartment.
- the indicator C shown in FIG. 5c, shows the symbol of the vacuum storage compartment 2 lit steady, as well as the first bar from the left. The other bars are flashing, for example, lit in turn to symbolize a progression.
- This configuration means that the first pressure level P 1 has been reached in vacuum storage 2 and that the evacuation continues to the second pressure level P 2 .
- the witness D shown in FIG. 5d, shows all the symbols lit steady and signifies that the second pressure level P 2 has been reached and that the depression in the vacuum storage compartment 2 is in accordance with the desired level.
- the indicator E shown in FIG. 5e, shows all the flashing symbols and is part of the error signal if it has a visual component.
- the error signal E can, indeed, be visual and / or sound.
- An advantageous embodiment of the invention consists in coupling the tests comparing, one, the elapsed time t to the predetermined duration t 2 , and the other, the pressure P to the predetermined pressure P 2 .
- the vacuum storage compartment 2 does not in the form of a drawer, as shown here, but under the shape of a fixed compartment with a door.
- the invention is then adapted by replacing the means 9 for detecting the presence of the compartment 2 by means of detecting the closure of the door.
- the vacuum storage compartment 2 is not in the form of a drawer, but in the form of a sealed box.
- the means for measuring the pressure 7 and 8 and the device 10 for depression of the compartment 2 then enter through openings provided with valves in said vacuum storage compartment 2.
- the advantage of such an embodiment is to move the vacuum storage compartment 2 inside the refrigerator 1, or to store it outside thereof.
- automatic monitoring of the vacuum holding of the vacuum storage compartment 2 is not carried out.
- An additional advantage of this embodiment is to have several interchangeable boxes.
- the invention responds to the need to carry out a control method automatic depressure of a storage compartment under vacuum. It ensures the user a follow-up of the implementation depression and maintaining a low pressure and alert in case of dysfunction.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Control Of Fluid Pressure (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
- Electron Tubes For Measurement (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Plus précisément, elle se rapporte à un procédé de contrôle automatique de la mise en dépression d'un tel compartiment de conservation sous vide.
Une contrainte supplémentaire est que l'utilisateur doit réaliser plusieurs étapes successives et contraignantes pour obtenir le vide sans savoir si le résultat obtenu est correct. Il ne sait pas si la dépression obtenue est suffisante. De plus il n'a pas de moyen de vérification dans le temps du maintien d'une dépression adéquate.
L'invention facilite l'utilisation d'un réfrigérateur muni d'un tel compartiment. En effet, le procédé permet de donner un retour d'information permanent à l'utilisateur sur la mise en place du compartiment et l'efficacité de la mise sous vide.
Il est, bien sûr, envisageable de se contenter d'un simple redémarrage de la pompe à vide en cas de remontée de pression, redémarrage couplé à un arrêt de ladite pompe lorsque la seconde pression prédéterminée est atteinte. Mais cette solution peut s'avérer moins intéressante que le retour à la première étape car il faudra alors d'autres moyens de détection d'incidents.
- La figure 1 est une vue d'ensemble en perspective d'un réfrigérateur domestique comprenant un compartiment de conservation sous vide ;
- La figure 2 est une vue en perspective d'un compartiment de conservation sous vide ;
- La figure 3 est une vue partielle en coupe d'un réfrigérateur domestique comprenant un compartiment de conservation sous vide ;
- La figure 4 est un organigramme représentant un procédé de contrôle automatique de la mise en dépression d'un tel compartiment de conservation sous vide ; et
- Les figures 5a à 5e représentent les différents états possibles de l'affichage correspondant aux étapes décrites dans l'organigramme de la figure 4
Selon l'invention, des valeurs intéressantes peuvent être par exemple, pour le premier niveau de pression prédéterminé P1, de l'ordre de 150 mBar en dessous de la pression atmosphérique et, pour le second niveau de pression prédéterminé P2, de l'ordre de 600 mBar en dessous de la pression atmosphérique. Ainsi, le fait d'atteindre le premier niveau de pression permet de vérifier que la mise en dépression est bien engagée et le fait d'atteindre le second niveau de dépression permet d'assurer une conservation optimale.
L'affichage est, dans l'exemple de représentation choisi, composé de cinq symboles, un parallélépipède rectangle symbolisant le compartiment de conservation sous vide 2 et quatre barres verticales. Ces symboles peuvent présenter trois états : éteint, allumé fixe ou allumé clignotant. La représentation des ces états choisie pour les figures 5 est la suivante : des traits pointillés pour un symbole éteint, un trait gras et un remplissage grisé pour un symbole allumé fixe et un trait gras sans remplissage pour un symbole allumé clignotant.
Le témoin A, représenté à la figure 5a, présente tous les symboles éteints et signifie l'absence de compartiment.
Le témoin B, représenté à la figure 5b, présente le symbole du compartiment allumé fixe et toutes les barres éteintes et signifie la présence de compartiment.
Le témoin C, représenté à la figure 5c, présente le symbole du compartiment de conservation sous vide 2 allumé fixe, de même que la première barre en partant de la gauche. Les autres barres sont clignotantes, allumées par exemple à tour de rôle afin de symboliser une progression. Cette configuration signifie que le premier niveau de pression P1 a été atteint dans de conservation sous vide 2 et que la mise sous vide se poursuit vers le second niveau de pression P2.
Le témoin D, représenté à la figure 5d, présente tous les symboles allumés fixes et signifie que le second niveau de pression P2 a été atteint et que la dépression dans le compartiment de conservation sous vide 2 est conforme au niveau recherché.
Le témoin E, représenté à la figure 5e, présente tous les symboles allumés clignotants et fait partie du signal d'erreur si celui-ci présente une composante visuelle.
Le signal d'erreur E peut, en effet, être visuel et/ou sonore.
L'intérêt d'un tel mode de réalisation est de pouvoir déplacer le compartiment de conservation sous vide 2 à l'intérieur du réfrigérateur 1, voire de le stocker à l'extérieur de celui-ci. Bien sûr dans ce cas il n'est pas réalisé de surveillance automatique du maintien en dépression du compartiment de conservation sous vide 2.
Un intérêt supplémentaire de ce mode de réalisation est de pouvoir disposer de plusieurs boítes interchangeables.
Claims (3)
- Procédé de contrôle de la mise en dépression d'un compartiment de conservation sous vide d'un réfrigérateur domestique
caractérisé en ce qu'il comprend les étapes suivantes :a- Mise à zéro et démarrage du compteur de temps t.b- Test de la présence du compartiment de conservation sous vide.
S'il est absent, affichage du témoin (A) correspondant et retour à l'étape a.
S'il est présent, mise en marche du système de mise sous vide et passage à l'étape c.c- Affichage du témoin (B) correspondant à la présence du compartiment de conservation sous vide et passage à l'étape d.d- Test sur le temps écoulé t.
Si le temps écoulé t est inférieur à une durée prédéterminée t1, retour à l'étape c.
Si le temps écoulé t est supérieur ou égal à la durée prédéterminée t1, passage à l'étape e.e- Test sur la pression P à l'intérieur du compartiment de conservation sous vide.
Si la pression P est supérieure à une pression prédéterminée P1, arrêt du pompage, affichage d'un signal d'erreur (E) et retour à l'étape a.
Si la pression P est inférieure ou égale à une pression prédéterminée P1, passage à l'étape f.f- Affichage du témoin (C) correspondant au démarrage effectif de la mise en dépression du compartiment de conservation sous vide et passage à l'étape g.g- Test sur le temps t.
Si le temps t écoulé est inférieur à une durée prédéterminée t2, retour à l'étape f.
Si le temps t écoulé est supérieur ou égal à la durée prédéterminée t2, passage à l'étape h.h- Nouveau test sur la pression P à l'intérieur du compartiment de conservation sous vide.
Si la pression P est supérieure à une pression prédéterminée P2, arrêt du pompage, affichage d'un signal d'erreur (E) et retour à l'étape a.
Si la pression P est inférieure ou égale à une pression prédéterminée P2, passage à l'étape i.i- Arrêt du pompage, affichage du témoin (D) correspondant à la réussite de la mise en dépression du compartiment de conservation sous vide et retour à l'étape h. - Procédé de contrôle de la mise en dépression d'un compartiment de conservation sous vide d'un réfrigérateur domestique selon la revendication 1,
caractérisé en ce qu'il comprend à la place de l'étape i les étapes suivantes :i'- Arrêt du pompage, affichage du témoin (D) correspondant à la réussite de la mise en dépression du compartiment de conservation sous vide et passage à l'étape j'.j'- Nouveau test sur la pression P à l'intérieur du compartiment de conservation sous vide.
Si la pression P est supérieure à la pression prédéterminée P2, retour à l'étape a.
Si la pression P est inférieure ou égale à la pression prédéterminée P2, retour à l'étape i'. - Réfrigérateur domestique comprenant un compartiment de conservation sous vide 2, un système de détection 9 de la présence dudit compartiment de conservation sous vide 2, un système de mise en dépression 10 dudit compartiment de conservation sous vide 2, un système de mesure 7 et 8 de ladite pression, un système de mesure du temps et un système d'affichage 5,
caractérisé en ce que le contrôle de la mise en dépression du compartiment de conservation sous vide est réalisé selon le procédé de contrôle conforme à la revendication 1 ou 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05290740T PL1591735T3 (pl) | 2004-04-30 | 2005-04-04 | Proces kontroli wytwarzania podciśnienia w komorze konserwacji próżniowej |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0404661A FR2869675B1 (fr) | 2004-04-30 | 2004-04-30 | Procede de controle de la mise en depression d'un compartiment de conservation sous vide. |
FR0404661 | 2004-04-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1591735A1 true EP1591735A1 (fr) | 2005-11-02 |
EP1591735B1 EP1591735B1 (fr) | 2010-01-27 |
Family
ID=34942065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05290740A Not-in-force EP1591735B1 (fr) | 2004-04-30 | 2005-04-04 | Procédé de contrôle de la mise en dépression d'un compartiment de conservation sous vide |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1591735B1 (fr) |
AT (1) | ATE456774T1 (fr) |
DE (1) | DE602005019120D1 (fr) |
ES (1) | ES2338127T3 (fr) |
FR (1) | FR2869675B1 (fr) |
PL (1) | PL1591735T3 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7669434B2 (en) | 2008-02-06 | 2010-03-02 | Whirlpool Corporation | Refrigerator door vacuum preservation system |
US8281606B2 (en) | 2008-02-06 | 2012-10-09 | Whirlpool Corporation | Refrigerator vacuum storage system |
EP2054683B1 (fr) * | 2006-08-18 | 2016-10-12 | BSH Hausgeräte GmbH | Réfrigérateur électrique à système de conservation sous vide et procédé de contrôle correspondant |
CN114370386A (zh) * | 2020-10-15 | 2022-04-19 | 海信(山东)冰箱有限公司 | 冰箱抽真空控制方法及冰箱 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1377844A (fr) | 1963-12-19 | 1964-11-06 | Breconvuot Anstalt | Perfectionnements apportés aux réfrigérateurs |
JPH03175251A (ja) * | 1989-12-01 | 1991-07-30 | Makoto Watanabe | 電気冷蔵庫 |
JP2001012837A (ja) | 1999-06-29 | 2001-01-19 | Matsushita Refrig Co Ltd | 真空冷却装置を備えた冷蔵庫 |
DE10248510A1 (de) * | 2002-10-17 | 2004-04-29 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit einem evakuierbaren Lagerfach |
-
2004
- 2004-04-30 FR FR0404661A patent/FR2869675B1/fr not_active Expired - Fee Related
-
2005
- 2005-04-04 PL PL05290740T patent/PL1591735T3/pl unknown
- 2005-04-04 DE DE602005019120T patent/DE602005019120D1/de active Active
- 2005-04-04 AT AT05290740T patent/ATE456774T1/de not_active IP Right Cessation
- 2005-04-04 ES ES05290740T patent/ES2338127T3/es active Active
- 2005-04-04 EP EP05290740A patent/EP1591735B1/fr not_active Not-in-force
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1377844A (fr) | 1963-12-19 | 1964-11-06 | Breconvuot Anstalt | Perfectionnements apportés aux réfrigérateurs |
JPH03175251A (ja) * | 1989-12-01 | 1991-07-30 | Makoto Watanabe | 電気冷蔵庫 |
JP2001012837A (ja) | 1999-06-29 | 2001-01-19 | Matsushita Refrig Co Ltd | 真空冷却装置を備えた冷蔵庫 |
DE10248510A1 (de) * | 2002-10-17 | 2004-04-29 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät mit einem evakuierbaren Lagerfach |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0154, no. 16 (M - 1172) 23 October 1991 (1991-10-23) * |
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 16 8 May 2001 (2001-05-08) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2054683B1 (fr) * | 2006-08-18 | 2016-10-12 | BSH Hausgeräte GmbH | Réfrigérateur électrique à système de conservation sous vide et procédé de contrôle correspondant |
US7669434B2 (en) | 2008-02-06 | 2010-03-02 | Whirlpool Corporation | Refrigerator door vacuum preservation system |
US8281606B2 (en) | 2008-02-06 | 2012-10-09 | Whirlpool Corporation | Refrigerator vacuum storage system |
CN114370386A (zh) * | 2020-10-15 | 2022-04-19 | 海信(山东)冰箱有限公司 | 冰箱抽真空控制方法及冰箱 |
CN114370386B (zh) * | 2020-10-15 | 2024-05-03 | 海信冰箱有限公司 | 冰箱抽真空控制方法及冰箱 |
Also Published As
Publication number | Publication date |
---|---|
ES2338127T3 (es) | 2010-05-04 |
PL1591735T3 (pl) | 2010-07-30 |
FR2869675B1 (fr) | 2006-08-04 |
ATE456774T1 (de) | 2010-02-15 |
EP1591735B1 (fr) | 2010-01-27 |
FR2869675A1 (fr) | 2005-11-04 |
DE602005019120D1 (de) | 2010-03-18 |
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