EP2672208A2 - Appareil de réfrigération avec réservoir sous vide - Google Patents

Appareil de réfrigération avec réservoir sous vide Download PDF

Info

Publication number: EP2672208A2
Authority: EP; European Patent Office
Prior art keywords: vacuum; vacuum container; refrigerator according; pressure; refrigerator
Prior art date: 2012-06-08
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

EP20130002446

Other languages

German (de)

English (en)

Other versions

EP2672208B1 (fr

EP2672208A3 (fr

Inventor

Jürg Werner

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.)

V-Zug AG

Original Assignee

V-Zug AG

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.)

2012-06-08

Filing date

2013-05-08

Publication date

2013-12-11

2013-05-08 Application filed by V-Zug AG filed Critical V-Zug AG

2013-12-11 Publication of EP2672208A2 publication Critical patent/EP2672208A2/fr

2015-06-24 Publication of EP2672208A3 publication Critical patent/EP2672208A3/fr

2019-08-07 Application granted granted Critical

2019-08-07 Publication of EP2672208B1 publication Critical patent/EP2672208B1/fr

Status Active legal-status Critical Current

2033-05-08 Anticipated expiration legal-status Critical

Links

Images

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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—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
- 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
- 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
- F25D23/00—General constructional features
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/005—Charging, supporting, and discharging the articles to be cooled using containers
- 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
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers

Definitions

the invention relates to a cooling device, in particular a refrigerator, with a cooling unit and with a coolable with the cooling unit usable space.
the cooling device according to claim 1. Accordingly, at least part of the useful space of the refrigerator is formed by at least one vacuum container. Next, the cooling device has a vacuum pump for generating a negative pressure in the interior of the vacuum tank. The refrigerated goods can thus be stored in the vacuum container at low temperatures and low pressure, resulting in a long storage time.
the vacuum container can be removed from the useful space.
a clutch can be provided in this case.
This coupling may, for example, have a first part arranged stationary on the cooling device and a second part fixedly arranged on the vacuum vessel, wherein these two parts can be interconnected with each other substantially gas-tight.
stationary should be understood to mean that the first part can remain in the refrigerator when the vacuum container is removed.
the first part of the coupling may have a first valve which can be opened by fastening the second part of the coupling on the first part. In other words, this valve remains closed until the vacuum tank is connected. In this way, when the clutch is not used, no air enters the negative pressure system of the refrigerator and the pump is not loaded.
a check valve may be arranged, which closes when in the interior of the vacuum vessel, a lower pressure prevails than at the mouth of the second part of the clutch.
Such designed vacuum container maintains its negative pressure even after the release of the clutch or a leak in the vacuum system of the refrigerator.
the vacuum container has a bottom part and a lid, which together enclose the interior of the vacuum container.
the second part of the coupling is attached to the cover, so that the cover, so to speak, contains the container-side coupling system, while the bottom part can be optimally configured as a receptacle for the goods to be refrigerated (for example as regards temperature resistance, design and washability).
the second part of the coupling can also be arranged on the bottom part, e.g. on a side wall or down.
the vacuum container can also be designed as a drawer of the refrigerator. Also in this case, the vacuum container preferably has a lid on. This can for example be designed so that it automatically opens during (partial or complete) pulling out of the vacuum tank and / or automatically closes when inserting the vacuum tank, which simplifies handling.
the bottom part of the vacuum tank can, as mentioned, be optimized for the particular application, e.g. for heating the chilled product in the steam cooker, in the oven or on the stove, in which case it is temperature resistant to at least 100 ° C (for steam cooking), in particular at least 150 ° C (for regeneration), in particular at least 300 ° C (for baking) and in particular should be at least 400 ° C (for cooking on the hob or for grilling), and may be made of metal (eg stainless steel).
metal eg stainless steel
a pressure sensor may be arranged to monitor the negative pressure in the interior thereof.
This pressure sensor may e.g. be formed by a "crackpot frog", as he is known from Einmachgefässen, or it may also be an electronic or mechanical pressure sensor with display.
the vacuum container may also have a water tank, which is in gas exchange communication with the interior of the vacuum vessel.
gas exchange compound is to be understood a compound that allows a transition of water vapor from the water tank into the interior of the vacuum vessel. This can be counteracted drying of the stored goods.
the vacuum pump is, depending on the application, advantageously designed so that it allows to lower the pressure in the inner space of a connected vacuum vessel to below 0.5 bar, in particular below 0.1 bar.
the invention can be used advantageously in a refrigerator, in particular a household refrigerator become. But it can also be used for example in a freezer, ie in a device in which the refrigerated goods are stored at below 0 ° C.
the refrigerator according to Fig. 1 is designed as a household refrigerator and has in a known manner a thermally insulated housing 1, which encloses a work space 2.
a thermally insulated housing 1 which encloses a work space 2.
known arrangements for receiving refrigerated goods are arranged, such as trays 3 or a freezer 4.
a merely schematically illustrated cooling unit 5 of known construction is provided which includes, for example, a heat pump and with the work space 2 can be cooled.
a controller 6 serves to control the components of the refrigerator.
a frame part 7 is arranged in the work space 2, which is designed for example in the manner of a tray, but receiving openings 8 for receiving vacuum containers 9 has.
the vacuum container 9 serve, as mentioned above, to store refrigerated goods at reduced pressure.
a vacuum pump 10 for generating a negative pressure in a negative pressure system is further provided in the cooling device.
this vacuum system comprises a line 11, which is connected to the vacuum pump 10, and an evacuation system in the frame part 7.
Fig. 2 shows a vacuum tank 9 arranged in the frame part 7.
the vacuum tank 9 has an interior space 12 in which the refrigerated goods under reduced pressure of at most 0.5 bar (ie, depending on the application, between 0 and 0.5 bar) is stored. Storage at a pressure of less than 0.1 bar can be useful, in particular, for refrigerated goods to be stored dry. In the range of 0.1 to 0.5 bar, the pressure can be selected, for example, depending on the desired humidity and the presence of liquids.
the interior is enclosed by a lid 14 and a bottom part 15, wherein the lid 14, the upper part and the bottom part 15 define the lower part of the vacuum tank 9.
the lid 14 has an edge region 16 which laterally projects beyond the bottom part 15 at least at one location, preferably on at least two mutually opposite sides. How out Fig. 2 can be seen, the vacuum container 9 is held at these laterally projecting edge portions 16 of the lid 14 from the frame part 7, that is supported from below.
Each vacuum container 9 can be connected via a coupling 18 with the vacuum system and thus the vacuum pump 10.
this coupling 18 is designed releasably.
the coupling 18 is connected on one side to a suction channel 20 of the evacuation system in the frame part 7, wherein the suction channel 20 in turn is connected via the line 11 with the vacuum pump 10 in connection.
the coupling 18 is connected to a channel 21 in the lid 14 of the vacuum tank 9, which leads to the interior 12 thereof.
the coupling 18, which by way of example in Fig. 3 is shown in detail, has two parts.
a first part 22 of the clutch 18 is stationarily arranged in the refrigerator, ie it can not be removed without disassembly.
a second part 23 of the coupling 18 is fixedly arranged on the vacuum container 9.
the two parts 22, 23 are designed so that they can be easily connected to each other and again separated from each other and form a substantially gas-tight coupling between the interior 12 and the vacuum pump 10 in the connected state.
the first part 22 is arranged on the frame part 7 and has a first valve with a valve body 25a and a valve seat 25b.
the valve body 25a is pressed against the valve seat 25b with a spring-elastic arrangement 25c, in particular a spring (shown in phantom in FIG Fig. 3 ), with a force which is able to hold the valve body 25a against the ambient pressure on the valve seat 25b.
a spring-elastic arrangement 25c in particular a spring (shown in phantom in FIG Fig. 3 )
the first valve 25a, 25b, 25c can be opened by fastening the second part 23 of the coupling 18 on the first part 22.
an actuating member 27 is provided on the second part 23, with which the valve body 25a when connecting the first and the second part 22, 23 is pressed away from the valve seat 25b.
This actuator 27 is formed by a mandrel which protrudes from the mouth 28 of the second part 23 against the outside.
the mandrel has a central channel 29a and lateral openings 29b at its tip to ensure gas flow from the second to the first part.
the mouth 28 of the second part 23 of the coupling 18 is arranged on the edge region 16 of the lid 14, so that it is easily accessible. In the execution after Fig. 3 it is located on the underside of the edge region 16, so that it comes to rest on insertion of the vacuum tank 9 in the frame part 7 on the upward-facing mouth 30 of the first part 22 of the clutch 18.
the vacuum tank 9 can be preferably used in the frame part 7, that it is held at the edge region 16 of the lid 14 from the frame part 7 and that the mouth 30 of the first part 22 of the coupling 18 at the mouth 28 of the second part 23 to lie comes.
a check valve 31 is arranged, which closes when in the interior 12 of the vacuum tank 9, a lower pressure prevails than at the mouth 28 of the second part 23 of the clutch 18.
the check valve 31 ensures that the negative pressure in Interior 12 is maintained even after removal of the vacuum tank 9 from the refrigerator. In addition, it also prevents the gas entering a coupled vacuum tank, if the vacuum system of the refrigerator is defective.
the frame part 7 is advantageously designed so that it is able to accommodate a plurality of vacuum tank 9. Accordingly, it has a plurality of openings 8, which are adapted in shape to the respective vacuum containers 9. Not all vacuum tanks 9 have the same shape or size.
Fig. 4 shows a second embodiment of a vacuum tank 9 in the form of a drawer, which can be pulled out either completely or at least partially from the refrigerator.
a suitable drawer storage He has a lower part 15 and a lid 14, which enclose the interior 12.
the cover 14 is, as already mentioned, advantageously designed so that it automatically opens when pulling out of the vacuum tank 9 and / or automatically closes when inserting the vacuum tank 9.
the lid 14, for example, as in Fig. 4 represented, be connected via a horizontal pivot axis 32 with the lower part 15 and are biased for example by spring force so that it rises as soon as the drawer is pulled out, provided that the interior 12 is previously vented by means of a suitable ventilation valve.
Such a vent valve is exemplary in Fig. 2 shown, in the form of a second valve with a valve body 34 a, a valve seat 34 b and a spring arrangement, the latter in the embodiment of Fig. 2 is formed by a perforated spring diaphragm 34c.
the spring diaphragm 34c presses the valve body 34a against the valve seat 34b with a force capable of holding the valve body 34a against the ambient pressure on the valve seat 34b.
an actuator 35 is provided, with which the user can push the valve body 34 a away from the valve seat 34 b, so as to ventilate the inner space 12.
the second part 23 of the coupling 18 is arranged by way of example on the lower part 14, namely on the rear side (ie the side facing away from the user door of the refrigerator), so that upon insertion automatically a contact with a corresponding first, arranged on the rear wall of the work space 2 first Part of the coupling can be made.
the vacuum container 9 may have a water tank 36. As already mentioned, this can be used to moisten the interior 12. He can eg as Shell be configured on the wall or at the bottom of the vacuum tank 9.
the frame part 7 can by means of a suitable storage 38 (see. Fig. 1 ) be arranged extendable in the refrigerator.
the conduit 11 is preferably so flexible as to follow a movement of the frame part 7 by at least 10 cm. Due to the pull-out configuration of the frame part 7, the vacuum container 9 are more accessible.
Fig. 4 For execution Fig. 4 was mentioned that the lid 14 can open automatically when pulling out the drawer. It is also conceivable, however, an embodiment in which the lid 14 remains closed when removing the drawer and the vacuum tank 9 can be removed from the cooling device, similar to the embodiment according to Fig. 1-3 ,
the vacuum containers 9 can one or two adjustable date displays 39 (see. Fig. 2 ) for reading a date, such as the filling date and / or expiration date. These may be mechanical units (dial wheels) or electronic units.
the vacuum container 9 may have a pressure sensor 40 (see. Fig. 2 ).
a pressure sensor 40 see. Fig. 2
the pressure sensor includes output means 40a, which allow the user to read the pressure state of the inner space 12 directly on the vacuum tank 9.
the output means 40a may indicate the pressure continuously or stepwise, also binary (negative pressure or no negative pressure). In a particularly simple manner, this can, as mentioned, take place via a mechanical cracking frog, ie the output means 40a are formed by the membrane of the cracking frog.
the containers can also have, for example, a gas sensor which is able to detect, for example, putrefactive gases (CO 2 , methane) in the interior 12. They may also have a temperature sensor which measures the temperature of the interior 12.
a gas sensor which is able to detect, for example, putrefactive gases (CO 2 , methane) in the interior 12.
CO 2 putrefactive gases
the containers may also have a temperature sensor which measures the temperature of the interior 12.
one of the parts of the clutch 18 is fixedly arranged in the refrigerator and the other on the vacuum tank 9, in such a way that they automatically create a connection when properly arranged the vacuum tank 9. It is also conceivable that the connection is created in each case via a flexible hose.
an input device may be provided, via which users can allow or suppress the evacuation of the same when inserted into the refrigerator.
a rotary switch 41 is provided, which acts on the actuator 27 via a spindle 42 and this can bring in two different vertical positions, wherein it actuates the first valve 22 only in the lower position.
This input device can also be combined with the mentioned aeration valve 34a, 34b, 34c, so that both functions can be controlled with a single input device.
the controller 6 is advantageously connected to a display unit 44 (see. Fig. 1 ) to indicate to the user the status of the refrigerator.
the controller 6 may be designed such that it detects a leak in a connected vacuum container 9 and optionally indicates this to the user via the display unit 44.
the controller 6 can determine with a suitable sensor that the vacuum pump 10 can not reach a predetermined underpressure in the vacuum system, eg in the line 11 - this is an indication that one of the connected vacuum containers 9 is not tight or that the vacuum system is leaking for some other reason.
a pressure control can be arranged on the vacuum tank 9, which includes, for example, a variable valve 46 and regulates the pressure in the interior with connected vacuum pump 10 to a desired value, so that the pressure is adapted to the particular application.
the pressure control further has an adjustment device 47, with which the desired value of the pressure (stepwise or continuously) can be specified.
the desired value of the pressure can advantageously be varied at least over 0.1 to 0.5 bar, so that the user can tell him the relevant Can adapt applications.
the valve 46 can be acted upon by the force of a spring 48 whose force can be varied via the adjusting device 47, so that the valve 46 opens only when the pressure in the interior 12 exceeds the nominal value.
the pressure control after Fig. 4 can also in the execution according to Fig. 1-3 be used.

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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)

EP13002446.6A 2012-06-08 2013-05-08 Appareil de réfrigération avec réservoir sous vide Active EP2672208B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH00802/12A CH704557B1 (de)	2012-06-08	2012-06-08	Kühlgerät mit Unterdruckbehälter.

Publications (3)

Publication Number	Publication Date
EP2672208A2 true EP2672208A2 (fr)	2013-12-11
EP2672208A3 EP2672208A3 (fr)	2015-06-24
EP2672208B1 EP2672208B1 (fr)	2019-08-07

Family

ID=46575712

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP13002446.6A Active EP2672208B1 (fr)	2012-06-08	2013-05-08	Appareil de réfrigération avec réservoir sous vide

Country Status (4)

Country	Link
EP (1)	EP2672208B1 (fr)
CN (1)	CN103486797B (fr)
AU (1)	AU2013205857B2 (fr)
CH (1)	CH704557B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2952837A1 (fr) *	2014-06-04	2015-12-09	BSH Hausgeräte GmbH	Appareil ménager équipé d'un système à vide
CN114608248A (zh) *	2018-09-10	2022-06-10	博西华电器（江苏）有限公司	一种冰箱
CN115307363A (zh) *	2021-09-18	2022-11-08	海信冰箱有限公司	冰箱
JP2023504924A (ja) *	2019-12-09	2023-02-07	ユリウスブルームゲー・エム・ベー・ハー	食品を貯蔵するための真空引出し装置

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CN203231607U (zh) *	2012-12-20	2013-10-09	博西华电器（江苏）有限公司	具有真空系统的冰箱
CN105333686B (zh) *	2014-08-01	2019-12-20	博西华家用电器有限公司	制冷设备
CN106592724A (zh) *	2017-01-20	2017-04-26	炬荣（三明)农业科技有限公司	蹲坐两用马桶
CN106836405A (zh) *	2017-01-20	2017-06-13	炬荣（三明)农业科技有限公司	马桶卫浴组合柜
CN114719520B (zh) *	2021-01-04	2024-03-22	海信容声(广东)冰箱有限公司	冰箱

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2012
- 2012-06-08 CH CH00802/12A patent/CH704557B1/de not_active IP Right Cessation
2013
- 2013-05-08 EP EP13002446.6A patent/EP2672208B1/fr active Active
- 2013-05-15 AU AU2013205857A patent/AU2013205857B2/en not_active Ceased
- 2013-06-06 CN CN201310223635.3A patent/CN103486797B/zh active Active

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2952837A1 (fr) *	2014-06-04	2015-12-09	BSH Hausgeräte GmbH	Appareil ménager équipé d'un système à vide
CN114608248A (zh) *	2018-09-10	2022-06-10	博西华电器（江苏）有限公司	一种冰箱
JP2023504924A (ja) *	2019-12-09	2023-02-07	ユリウスブルームゲー・エム・ベー・ハー	食品を貯蔵するための真空引出し装置
CN115307363A (zh) *	2021-09-18	2022-11-08	海信冰箱有限公司	冰箱
CN115307363B (zh) *	2021-09-18	2024-01-26	海信冰箱有限公司	冰箱

Also Published As

Publication number	Publication date
CH704557A2 (de)	2012-07-31
CN103486797A (zh)	2014-01-01
EP2672208B1 (fr)	2019-08-07
AU2013205857B2 (en)	2017-06-15
AU2013205857A1 (en)	2014-01-09
EP2672208A3 (fr)	2015-06-24
CH704557B1 (de)	2021-09-30
CN103486797B (zh)	2019-05-10

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