EP0545246B1 - Improved refrigeration appliance such as a domestic refrigerator, freezer or the like, with a vacuum compartment - Google Patents
Improved refrigeration appliance such as a domestic refrigerator, freezer or the like, with a vacuum compartment Download PDFInfo
- Publication number
- EP0545246B1 EP0545246B1 EP92120060A EP92120060A EP0545246B1 EP 0545246 B1 EP0545246 B1 EP 0545246B1 EP 92120060 A EP92120060 A EP 92120060A EP 92120060 A EP92120060 A EP 92120060A EP 0545246 B1 EP0545246 B1 EP 0545246B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- box member
- compartment
- refrigeration appliance
- box
- door
- 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.)
- Expired - Lifetime
Links
- 238000005057 refrigeration Methods 0.000 title claims description 20
- 238000005086 pumping Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000003831 antifriction material Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
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
- 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
-
- 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
- F25D2400/16—Convertible refrigerators
Definitions
- This invention relates to a refrigeration appliance as stated in the first part of the attached claim 1.
- a refrigerator of the stated type is disclosed by EP-A-440 296, in which the box member is closed by an upper lid.
- Refrigeration appliances such as refrigerators, of the stated type in which vacuum is generally generated within the entire compartment or in a box member provided with its own lid or closure element have been known for some time.
- this seepage is prevented by locating a box member with its own lid inside the compartment.
- this method is more costly than the first and comprises means, often not of simple construction, for opening the lid when the compartment door opens.
- An object of the present invention is to provide a refrigeration appliance of the aforestated type which is of simple construction and low cost.
- a further object is to provide a refrigeration appliance of the aforesaid type in which vacuum is reliably obtained in a compartment thereof.
- a further object is to provide a refrigeration appliance of the aforesaid type in which by opening said compartment the vacuum therein is automatically broken, said opening being achieved without requiring particular force by the user.
- an upright refrigerator is indicated overall by 1 and comprises a cabinet 2 insulated with a usual insulating material (such as polyurethane) 3 and comprising three compartments 4, 5, 6. These compartments have their own access apertures 4A, 5A, 6A closed by corresponding doors 7, 8 and 9; said compartments are specifically a usual freezer compartment 4, a refrigeration or preserving compartment 6 and a convertible compartment 5 able to be used at variable but controlled temperature, for example close to 0°C or to the temperature of a freezer compartment (-18°C).
- a usual insulating material such as polyurethane
- a pipe 10 connected to a usual pumping member (not shown) for creating vacuum.
- the pipe 10 is associated with a deformable member or sucker 11 arranged to cooperate with a box member 13 removably contained in the compartment 5.
- the box member 13 constructed of a mechanically strong material (such as metal), comprises side walls 14, a rear wall 15, a top 16 and a base or lower part 17.
- the rear wall 15 comprises a through hole 18 to connect the interior cavity 20 of the box member 13 to the sucker 11 and hence to the pipe 10.
- Said cavity is open on that side 22 thereof where the door 8 is provided.
- the box member 13 comprises, externally on its side walls 14, wheels 25 (such as ball bearings or wheels of anti-friction material) movable within guides 26 associated with side walls 27 of the compartment 5. Said movement is limited by bosses 30 provided on the roof 31 and/or on the bottom 32 of the compartment 5, and with which corresponding axially movable elements 33 cooperate against the action of a spring 35.
- wheels 25 such as ball bearings or wheels of anti-friction material
- each element 33 comprises a substantially annular body 36 having a cavity 34 containing a substantially T-shaped pin 37.
- the head 38 of this latter cooperates with an annular edge projecting into the cavity 34.
- the pin is fixed in known manner to the outside of the top 16 of the box member 13, the spring being mounted about it to cooperate with said top and with the body 36.
- the box member 13 supports guides 40 within which there slide wheels 41 (wheels of anti-friction material or ball bearings) of a usual basket 42 contained advantageously removably in the box member 13.
- the basket 42 is rigid with that side 43 of the door 8 which faces the open side 22 of the cavity 20 and is arranged to seal this latter.
- a member 45 of a material of high mechanical strength comprising an end edge 46 arranged to cooperate via a seal member 47, maintaining vacuum in the box member 13, with a flanged edge 49 of this latter arranged in a relative seat 50 provided in a position corresponding with the compartment 5.
- one of said edges 46 cooperates with a microswitch 51 positioned to correspond with the flanged edge 49 of the box member 13 and connected to a usual control circuit (not shown) for the pumping member.
- the door 8 (formed in the usual manner with a plastic structure 53 into which polyurethane or another insulating material 54 is injected and with which the member 45 is rigid) carries usual magnetic gaskets 57 ensuring the thermal seal of the compartment.
- the door 8 is pulled to separate it from the cabinet 2.
- the box member 13 is returned into contact with the sucker 11 and the microswitches 51 close. In this manner, if the operating pushbutton for the pumping member is again pushed, the pumping member immediately operates to create vacuum in the box member 13 to help to hermetically seal the door 8 against the cabinet 2.
- the box member 13 can be extracted from the compartment 5, for example for cleaning. To achieve this, the box member has to be pulled directly with the door open, to overcome the resistance of the springs 35 against which the elements 33 move.
- the microswitch 51 is positioned on the rear wall 5K of the compartment 5 (as shown by dashed lines in Figure 2 and indicated by 51K). It cooperates with the box member 13 on opening and closure of the door with resultant movement of the box member 13 along the guides 26.
- a fixed stop 5H (indicated by dashed lines in Figure 2) is associated with the rear wall 5K of the compartment 5, and against which the box member 13 halts when the door 8 is opened.
- the bosses 30 and elements 33 can be omitted.
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)
- Refrigerator Housings (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
- This invention relates to a refrigeration appliance as stated in the first part of the attached
claim 1. - A refrigerator of the stated type is disclosed by EP-A-440 296, in which the box member is closed by an upper lid.
- Refrigeration appliances, such as refrigerators, of the stated type in which vacuum is generally generated within the entire compartment or in a box member provided with its own lid or closure element have been known for some time.
- In the first case, the known constructions are often ineffective because of the inevitable seepage of air into the compartment, with consequent breaking of the vacuum
- In the second case this seepage is prevented by locating a box member with its own lid inside the compartment. However this method is more costly than the first and comprises means, often not of simple construction, for opening the lid when the compartment door opens.
- An object of the present invention is to provide a refrigeration appliance of the aforestated type which is of simple construction and low cost.
- A further object is to provide a refrigeration appliance of the aforesaid type in which vacuum is reliably obtained in a compartment thereof.
- A further object is to provide a refrigeration appliance of the aforesaid type in which by opening said compartment the vacuum therein is automatically broken, said opening being achieved without requiring particular force by the user.
- These objects are attained by a refrigeration appliance according to
claim 1. - The present invention will be more apparent from the accompanying drawing, which is provided by way of non-limiting example and in which:
- Figure 1 is a partial cross-section through an upright refrigerator constructed in accordance with the invention;
- Figure 2 is an enlarged partial cross-section through a part of the refrigerator of Figure 1;
- Figure 3 is a partial section on the line 3-3 of Figure 2;
- Figure 4 is an enlarged view of the part indicated by A in Figure 2.
- With reference to said figures, an upright refrigerator is indicated overall by 1 and comprises a
cabinet 2 insulated with a usual insulating material (such as polyurethane) 3 and comprising threecompartments own access apertures corresponding doors usual freezer compartment 4, a refrigeration orpreserving compartment 6 and aconvertible compartment 5 able to be used at variable but controlled temperature, for example close to 0°C or to the temperature of a freezer compartment (-18°C). - Into one of these compartments, for example the
convertible compartment 5, there opens apipe 10 connected to a usual pumping member (not shown) for creating vacuum. - The
pipe 10 is associated with a deformable member or sucker 11 arranged to cooperate with abox member 13 removably contained in thecompartment 5. - The
box member 13, constructed of a mechanically strong material (such as metal), comprisesside walls 14, arear wall 15, atop 16 and a base orlower part 17. Therear wall 15 comprises a throughhole 18 to connect theinterior cavity 20 of thebox member 13 to the sucker 11 and hence to thepipe 10. - Said cavity is open on that
side 22 thereof where thedoor 8 is provided. - The
box member 13 comprises, externally on itsside walls 14, wheels 25 (such as ball bearings or wheels of anti-friction material) movable withinguides 26 associated with side walls 27 of thecompartment 5. Said movement is limited bybosses 30 provided on theroof 31 and/or on thebottom 32 of thecompartment 5, and with which corresponding axiallymovable elements 33 cooperate against the action of aspring 35. - Specifically (see Figure 4), each
element 33 comprises a substantiallyannular body 36 having acavity 34 containing a substantially T-shaped pin 37. Thehead 38 of this latter cooperates with an annular edge projecting into thecavity 34. - The pin is fixed in known manner to the outside of the
top 16 of thebox member 13, the spring being mounted about it to cooperate with said top and with thebody 36. - Internally on its
side walls 14 thebox member 13 supportsguides 40 within which there slide wheels 41 (wheels of anti-friction material or ball bearings) of ausual basket 42 contained advantageously removably in thebox member 13. - The
basket 42 is rigid with thatside 43 of thedoor 8 which faces theopen side 22 of thecavity 20 and is arranged to seal this latter. - In detail, on the
side 43 there is provided amember 45 of a material of high mechanical strength (such as metal), comprising anend edge 46 arranged to cooperate via aseal member 47, maintaining vacuum in thebox member 13, with aflanged edge 49 of this latter arranged in arelative seat 50 provided in a position corresponding with thecompartment 5. - Advantageously, one of
said edges 46 cooperates with amicroswitch 51 positioned to correspond with theflanged edge 49 of thebox member 13 and connected to a usual control circuit (not shown) for the pumping member. - The opening of this microswitch on opening the
door 8 halts the pumping member. - Finally, the door 8 (formed in the usual manner with a plastic structure 53 into which polyurethane or another insulating material 54 is injected and with which the
member 45 is rigid) carries usualmagnetic gaskets 57 ensuring the thermal seal of the compartment. - It will now be assumed that a refrigerator of the aforedescribed type is to be used. In particular, it will be assumed that food is contained in the
basket 42. - To extract food from the compartment for its consumption, the
door 8 is pulled to separate it from thecabinet 2. - This action (in the direction of the arrow F of Figure 1) exerts a pull on the
basket 42 and on thebox member 13, which at least partly separates from the sucker 11. This separation breaks the vacuum in said box member because air at atmospheric pressure can now penetrate into it through thehole 18, which is no longer protected by the sucker 11. The separation of thebox member 13 from this latter is achieved by the cooperation between thewheels 41 on the basket and theguides 40 on said box member, and in particular by virtue of the fact that the vacuum causes themember 45 to adhere to thebox member 13. - The separation of this latter from the sucker leads, as stated, to breakage of the vacuum within the box member. In this manner the pressure in its interior equals the external pressure, with the result that the
member 45 separates from thebox member 13. - Consequently, by completely opening the
door 8 thebasket 42 is extracted from thebox member 13, allowing food to be withdrawn from it. By the effect of a friction force which, although minimal, is always present between thewheels 41 of thebasket 42 and itsguides 40, thebox member 13 moves still further away from the sucker 11 and halts against thebosses 30 when theelements 33 rest thereagainst. - In addition, the opening of the door and the separation of the
member 45 from thebox member 13 leads to the opening of themicroswitch 51 and hence, as already stated, to stoppage of the pumping member which provides the vacuum. - If the door is now closed, the
box member 13 is returned into contact with the sucker 11 and themicroswitches 51 close. In this manner, if the operating pushbutton for the pumping member is again pushed, the pumping member immediately operates to create vacuum in thebox member 13 to help to hermetically seal thedoor 8 against thecabinet 2. - It should be noted that because of the form of the
elements 33, thebox member 13 can be extracted from thecompartment 5, for example for cleaning. To achieve this, the box member has to be pulled directly with the door open, to overcome the resistance of thesprings 35 against which theelements 33 move. - In a modified embodiment according to the invention, the
microswitch 51 is positioned on therear wall 5K of the compartment 5 (as shown by dashed lines in Figure 2 and indicated by 51K). It cooperates with thebox member 13 on opening and closure of the door with resultant movement of thebox member 13 along theguides 26. - In a further modification, a fixed
stop 5H (indicated by dashed lines in Figure 2) is associated with therear wall 5K of thecompartment 5, and against which thebox member 13 halts when thedoor 8 is opened. In this case thebosses 30 andelements 33 can be omitted. - Various embodiments of the invention have been described. However other embodiments are possible (such as one in which vacuum sensors are provided within the
box member 13 and are connected to vacuum indicators located on the front or control panel of the refrigeration appliance).
Claims (11)
- A refrigeration appliance, such as a domestic refrigerator, freezer or the like, comprising a plurality of compartments (4, 5, 6) with their own access apertures closed by doors (7, 8, 9), one (5) of said compartments being connected via a pipe (10) to a pumping member for generating vacuum, wherein a box member (13) open on one side (22) is removably contained in said one (5) of said compartments (4, 5, 6) and is movable in a guided manner along walls (27) of said compartment (5), the box member (13) comprising an internal cavity (20) arranged to communicate with the pipe (10) connected to the pumping member via connection means (11), means for the sealed closure of the box member (13) being arranged to lie against the cavity (20) of said box member (13) in which the vacuum is generated, characterised in that the box member (13) is open on that side (22) thereof where the door (8) of the compartment (5) is provided and the door (8) of the compartment (5) is adapted to close the opening of the box member (13).
- A refrigeration appliance as claimed in claim 1, characterised in that the means for the sealed closure of the box member (13) comprise a stiffening member (45) formed from material of high mechanical strength associated with that side (43) of said door (8) which faces the open side (22) of the box member (13).
- A refrigeration appliance as claimed in claim 1, characterised in that the box member (13) comprises wheels (25) movable within guides (26) rigid with walls (27) of the compartment (5) which contains it.
- A refrigeration appliance as claimed in claim 3, characterised in that the box member (13) contains a basket (42) movable along guides (40) associated with walls (14) of said box member, said basket being associated with the closure means.
- A refrigeration appliance as claimed in claim 2, characterised in that the member (45) associated with the door (8) comprises an end edge (46) supporting a seal member (47) which is arranged to cooperate with a flanged edge (49) of the box member (13), said seal member enabling vacuum to be maintained within said box member (13).
- A refrigeration appliance as claimed in claim 5, characterised by comprising a switch member (51) connected to the control circuit for the pumping member and positioned on the flanged edge (49) of the box member (13), the switch member (51) being operated by the door (8).
- A refrigeration appliance as claimed in claim 2, characterised by comprising a switch member (51) connected to the control circuit for the pumping member and positioned on the rear wall (5K) of the compartment (5).
- A refrigeration appliance as claimed in claim 5, characterised in that the flanged edge (49) of the box member (13) lies in a seat (50) provided in a position corresponding with the compartment (5) which contains said box member (13).
- A refrigeration appliance as claimed in claim 1, characterised by comprising travel limiting means (30, 33) for limiting the movement of the box member (13) within its compartment.
- A refrigeration appliance as claimed in claim 9, characterised in that the travel limiting means comprise projections (30) associated with walls (31) of the compartment (5) containing the box member (13) and cooperating with movable elements (33) against the action of springs (35) associated with said box member (13).
- A refrigeration appliance as claimed in claim 9, characterised in that the travel limiting means comprise a fixed stop (5H) associated with the rear wall (5K) of the compartment (5).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI913233 | 1991-12-03 | ||
ITMI913233A IT1252155B (en) | 1991-12-03 | 1991-12-03 | PERFECTED REFRIGERATOR, FOR EXAMPLE A DOMESTIC REFRIGERATOR, A FREEZER OR SIMILAR, WITH VACUUM COMPARTMENT |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0545246A2 EP0545246A2 (en) | 1993-06-09 |
EP0545246A3 EP0545246A3 (en) | 1993-07-07 |
EP0545246B1 true EP0545246B1 (en) | 1996-11-06 |
Family
ID=11361242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92120060A Expired - Lifetime EP0545246B1 (en) | 1991-12-03 | 1992-11-25 | Improved refrigeration appliance such as a domestic refrigerator, freezer or the like, with a vacuum compartment |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0545246B1 (en) |
DE (1) | DE69215061T2 (en) |
ES (1) | ES2097855T3 (en) |
IT (1) | IT1252155B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19931920A1 (en) * | 1999-07-08 | 2001-01-18 | Alois Scheidter | Container with inner chamber for refrigerator is sealed with door or flap to be airtight for preventing leakage from refrigerator inner chamber |
EP1415116A1 (en) * | 2001-08-01 | 2004-05-06 | Jimpa, Inc. | Appliance having shelving |
US7325409B2 (en) | 2004-03-24 | 2008-02-05 | Espinosa Edward P | Vacuum storage apparatus with sliding drawers |
GB2414065B (en) * | 2004-05-13 | 2007-08-22 | Cambridge Consultants | Vacuum storage compartment construction in cooling apparatus |
GB2415766B (en) * | 2004-07-02 | 2007-04-11 | Cambridge Consultants | Vacuum storage compartment construction in a cooling apparatus body |
ITMC20090084A1 (en) * | 2009-04-17 | 2010-10-18 | Tarcisio Senzacqua | EQUIPMENT FOR VACUUM CONSERVATION OF FOOD IN A DOMESTIC ENVIRONMENT. |
DE102009046766A1 (en) * | 2009-11-17 | 2011-06-30 | BSH Bosch und Siemens Hausgeräte GmbH, 81739 | Refrigerating appliance with an evacuable drawer |
BRPI0905051B1 (en) | 2009-12-14 | 2020-09-15 | Electrolux Do Brasil S.A | ORGANIZER SUPPORT FOR REFRIGERATORS |
CN203231607U (en) * | 2012-12-20 | 2013-10-09 | 博西华电器(江苏)有限公司 | Refrigerator with vacuum system |
DE102015215487A1 (en) | 2015-06-26 | 2016-12-29 | BSH Hausgeräte GmbH | Refrigeration unit with pressure sensor |
EP3109579B1 (en) * | 2015-06-26 | 2019-03-13 | BSH Hausgeräte GmbH | Refrigeration device with a pressure sensor |
US11104502B2 (en) | 2016-03-01 | 2021-08-31 | Jeffrey S. Melcher | Multi-function compact appliance and methods for a food or item in a container with a container storage technology |
US10747968B2 (en) | 2017-11-22 | 2020-08-18 | Jeffrey S. Melcher | Wireless device and selective user control and management of a wireless device and data |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2550040A (en) * | 1946-08-08 | 1951-04-24 | Clar Mottel | Selectively evacuated temperature regulated container |
US3680941A (en) * | 1971-02-17 | 1972-08-01 | Sears Roebuck & Co | Food storage compartment for refrigerator |
IT1230958B (en) * | 1989-06-30 | 1991-11-08 | Eurodomestici Ind Riunite | REFRIGERATOR, FREEZER OR SIMILAR WITH REMOVABLE CONTAINER IN WHICH VACUUM IS MADE. |
IT1238452B (en) * | 1990-02-01 | 1993-08-18 | Eurodomestici Ind Riunite | REFRIGERATOR, FREEZER OR SIMILAR WITH REMOVABLE CONTAINER WHERE AUTOMATIC CLOSING AND OPENING IS MADE |
-
1991
- 1991-12-03 IT ITMI913233A patent/IT1252155B/en active IP Right Grant
-
1992
- 1992-11-25 DE DE69215061T patent/DE69215061T2/en not_active Expired - Fee Related
- 1992-11-25 EP EP92120060A patent/EP0545246B1/en not_active Expired - Lifetime
- 1992-11-25 ES ES92120060T patent/ES2097855T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT1252155B (en) | 1995-06-05 |
ITMI913233A1 (en) | 1993-06-03 |
ITMI913233A0 (en) | 1991-12-03 |
DE69215061T2 (en) | 1997-04-30 |
EP0545246A3 (en) | 1993-07-07 |
EP0545246A2 (en) | 1993-06-09 |
DE69215061D1 (en) | 1996-12-12 |
ES2097855T3 (en) | 1997-04-16 |
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