EP2789937B1 - Refrigerator comprising a convertible compartment and method for adjusting temperature therein - Google Patents
Refrigerator comprising a convertible compartment and method for adjusting temperature therein Download PDFInfo
- Publication number
- EP2789937B1 EP2789937B1 EP13162983.4A EP13162983A EP2789937B1 EP 2789937 B1 EP2789937 B1 EP 2789937B1 EP 13162983 A EP13162983 A EP 13162983A EP 2789937 B1 EP2789937 B1 EP 2789937B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerator
- rotating
- compartment
- flow
- sub
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005057 refrigeration Methods 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
- F25D17/045—Air flow control arrangements
-
- 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
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
-
- 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
- F25D2317/06—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 with forced air circulation
- F25D2317/061—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 with forced air circulation through special compartments
-
- 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
-
- 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 present invention relates to a refrigerator comprising a convertible compartment in which a flow of cold air is fed and a damper system for adjusting such flow in order to regulate temperature in said convertible compartment.
- Figure 10 shows a partially open-open configuration corresponding to 312°.
Description
- The present invention relates to a refrigerator comprising a convertible compartment in which a flow of cold air is fed and a damper system for adjusting such flow in order to regulate temperature in said convertible compartment.
- The above mentioned type of refrigerators and related convertible compartments are well known in the art of domestic refrigeration appliances. Such compartments can be customized by the user in order to adapt a certain compartment of the refrigerator, in addition to traditional fresh food and freezer compartment, to a certain kind of food to be stored. Usually the cold air is supplied from the freezer compartment by means of a conduit and related fan.
- A refrigerator of the above type is known from
EP 2015009 A2 where a multipurpose central compartment is fed by cold air coming from the freezing or fresh food compartment or from both.US 2006/168990 A1 discloses a damper device with a pair of rotating baffles driven by a single motor. - In order to increase the flexibility of the convertible compartment, it is possible to envisage a compartment in which two different temperatures can be maintained. Such solution has not been implemented up to now since it would imply the use of multiple dampers and motors therefore increasing the complexity and cost of the refrigerator.
- It is therefore an objective of the present invention to increase the flexibility of use of a convertible compartment by allowing the user to maintain two different temperatures therein, minimizing the components and reducing the overall cost.
- According to the invention, the above objective is reached thanks to the features listed in the appended claims.
- According to the invention, the convertible compartment presents a cold air flow distributor with a single motor and gear mechanism to control air flow into the two regions with two different temperatures.
- The gear mechanism rotates two rotary valves at different rates which cooperate with two openings thereby allowing control of the actual area for air passage on each side of the compartment independently.
- Of course other kind of transmission from the single motor to the two rotary valves can be adopted, for instance by means of belts and pulleys. Moreover it is possible to divide the convertible compartment in more than two sub-compartments.
- Further features and advantages of a refrigerator according to the present invention will be clear from the following description, with reference to the attached drawings in which:
-
Figure 1 is a schematic cross section view of part of a refrigerator having a convertible compartment according to the invention; -
Figure 2 is a perspective exploded view of the compartment offigure 1 ; -
Figure 3 is a perspective exploded view of a component offigure 2 ; -
Figure 4 is a diagram showing the percentage of opening area of the flow distributor used in the compartment offigures 1-3 vs. angle of rotation; and -
Figures 5 - 10 are schematic views showing different configurations of the flow distributor. - With reference to the drawings, a
refrigerator 10 comprises a fresh food compartment RC, a freezer compartment FC and aconvertible compartment 12 placed between the fresh food compartment RC and the freezer compartment FC. Theconvertible compartment 12 has aninner liner 12a provided with aback aperture 14 for allowing the inflow of cold air from the freezer compartment FC though aconduit 16. - In the rear portion of the
convertible compartment 12 it is placed aflow distributor 18 which divides the compartment in anair plenum 20 and in a storing chamber 22 which is divided in twosub-chambers 22a and 22b by means of avertical separator 24. In each sub-chamber it is placed abin 26 which can be extracted from the chamber 22 when adoor 28 is pulled by the user. - With reference to
figure 3 , theflow distributor 18 comprises awall 30 which is fixed in an air tight manner within theinner liner 12a and ashaped cover 32. Thewall 30 and thecover 32 have each twoopenings wall 30 and thecover 32 is defined a thin space where two rotatingdiscs opening 42 corresponding to the shape of theopenings wall 30 and of thecover 32 respectively. Each disc has a geared edge G in order to cooperate with a gear mechanism comprising amotor gear 44, acompound gear 46 and anidle gear 48. Themotor gear 44 is driven by an electric motor 50 supported by thewall 30 and by thecover 32. - By choosing the number of teeth of each gear element, it is possible to have a different speed of rotation of the
discs 38 and 40 (which act as rotating valves) and therefore reach different combinations of opening/closing percentage of theopenings right sub-compartments 22a and 22b, which may be as follows:Right side (sub-compartment 22a) Left side ( sub-compartment 22b)-18°C -18°C -18°C -13°C 0°C +2°C +2°C +2°C +2°C +10°C - Various levels of relative openings between left & right can be achieved based on the requirement by changing the gear ratios. This concept can be extended to multiple openings also with a single prime mover. Very precise control of openings is possible by reducing the module of the gears also. By choosing a certain gear ratio (3.25:1 for slower rotation-right opening & gear ratio of 0.65:1 for faster rotation-left opening), it is possible to obtain the following % of opening for
different motor gear 44 rotation angle positions:Motor gear rotation angle % right opening % left opening 0° 1 1 78° 0.976 0.5 156° 0.905 0 234° 0.794 0.5 312° 0.655 1 1 turn 30°0.5 0.5 1 turn 108° 0.345 0 1 turn 186° 0.206 0.5 1 turn 264° 0.095 1 1 turn 342° 0.024 0.5 2 turns 60° 0 0 2 turns 138° 0.024 0.5 2 turns 216° 0.095 1 2 turns 294° 0.206 0.5 3 turns 12° 0.345 0 3 turns 90° 0.5 0.5 3 turns 168° 0.655 1 3 turns 248° 0.794 0.5 3 turns 324° 0.905 0 4 turns 42°0.976 0.5 4 turns 120° 1 1 - The above % opening vs. angle is shown also in
figure 4 .
By stopping the motor 50 at a certain time (and by optionally using an angle of rotation sensor), it is possible to obtain the following basic air configuration table:Right side opening Left side opening Time/angle OPEN OPEN 0,4 turn 120° OPEN PARTIALLY OPEN 78°, 4 turns 42°OPEN CLOSE 156°, 3 turns 324° CLOSE CLOSE 1 turn 264°, 2 turns 216° PARTIALLY OPEN CLOSE 1 turn 108°, 3 turns 12° PARTIALLY OPEN OPEN 312°, 3 turns 168° CLOSE PARTIALLY OPEN 2 turns 168°, 1 turn 342° PARTIALLY OPEN PARTIALLY OPEN 1 turn 30°, 3 turns 90° - Where right and left side are referred to the
sub-compartments 22a and 22b as seen by the user, and "partially open" means 50% of opening. -
Figures 5 to 10 show certain configurations of the flow distributor according to the invention, as seen from direction Z (figure 3 ). In this view the "right"disc 40 rotates at a higher speed than the "left" disc 38 (where right and left are opposite to the above definition). -
Figure 5 shows an open-open configuration corresponding to 0° or 4turns + 120°. -
Figure 6 shows an open-partially open configuration corresponding to 78°. -
Figure 7 shows an open-close configuration corresponding to 156°. -
Figure 8 shows a close-open configuration corresponding to 1 turn + 264°. -
Figure 9 shows a partially open - close configuration corresponding to 1 turn + 108°. -
Figure 10 shows a partially open-open configuration corresponding to 312°. - Of course the actual temperature in the
sub-compartments 22a and 22b depends on the actual temperature in the freezer compartment FC, on the dimension of theconduit 16, on the actual flow rate driven by the fan F (depending also on the dimension of the return conduit, not shown), and on the insulation of the convertible compartment 22 as well. A designer can therefore establish the actual link between the percentage of the openings and the actual temperature in the sub-compartments by carrying out experimental tests. Once such relationship is established, the designer will program the control unit of the refrigerator, and particularly the control unit associated with the flow distributor 18 (indicated with reference K infigure 2 ), accordingly.
Claims (8)
- Refrigerator (10) comprising a convertible compartment (22) in which a flow of cold air is fed and comprising a damper system (18) for adjusting such flow in order to regulate the temperature in said convertible compartment (22); characterized in that the convertible compartment (22) comprises at least two sub-compartments (22a, 22b) maintained at different temperatures and wherein the damper system (18) comprises two rotating flow distributors (38, 40) to independently control air flow into the sub-compartments.
- Refrigerator according to claim 1, wherein the two rotating distributors (38, 40) are driven by a single motor (50).
- Refrigerator according to claim 2, wherein the two rotating distributors (38, 40) are driven by means of a gear transmission (44, 46, 48, G).
- Refrigerator according to claim 3, wherein the flow distributor (18) comprises a fixed screen (30, 32) having two openings (34, 36) shaped as parts of circle rings, and two rotating disc (38, 40) having openings with a shape corresponding to the openings (34, 36) of the screen (30, 32).
- Refrigerator according to claim 4, wherein the two rotating disc (38, 40) have a geared edge (G) cooperating with the gear transmission (44, 46, 48).
- Method for regulating the temperature in a convertible compartment (22) of a refrigerator (10) having at least two sub-compartments (22a, 22b) maintained at different temperatures, characterized in that it comprises adjusting the flow rate of cold air coming from another compartment (FC) of the refrigerator (10) by rotating step-wise two rotating valves (38, 40) in order to independently change the actual areas of air passage towards the two sub-compartments (22a, 22b).
- Method according to claim 6, wherein the two rotating valves (38, 40) are driven by a single motor (50).
- Method according to claim 7, wherein the two rotating valves (38, 40) are driven by the single motor (50) through a gear transmission (44, 46, 48, G).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13162983.4A EP2789937B1 (en) | 2013-04-09 | 2013-04-09 | Refrigerator comprising a convertible compartment and method for adjusting temperature therein |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13162983.4A EP2789937B1 (en) | 2013-04-09 | 2013-04-09 | Refrigerator comprising a convertible compartment and method for adjusting temperature therein |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2789937A1 EP2789937A1 (en) | 2014-10-15 |
EP2789937B1 true EP2789937B1 (en) | 2019-03-27 |
Family
ID=48049885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13162983.4A Not-in-force EP2789937B1 (en) | 2013-04-09 | 2013-04-09 | Refrigerator comprising a convertible compartment and method for adjusting temperature therein |
Country Status (1)
Country | Link |
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EP (1) | EP2789937B1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014000653A1 (en) * | 2014-01-17 | 2015-07-23 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
CN104879985B (en) * | 2015-05-21 | 2017-12-08 | 青岛海尔股份有限公司 | Refrigerator |
CN104879993B (en) * | 2015-05-21 | 2017-12-29 | 青岛海尔股份有限公司 | Branch air-supply arrangement |
CN104879995B (en) * | 2015-05-21 | 2018-02-02 | 青岛海尔股份有限公司 | Refrigerator, branch air-supply arrangement and its control method |
CN104896828B (en) * | 2015-05-21 | 2018-02-02 | 青岛海尔股份有限公司 | Refrigerator |
CN104990333B (en) * | 2015-05-21 | 2018-02-02 | 青岛海尔股份有限公司 | Refrigerator |
CN104879991B (en) * | 2015-05-21 | 2018-04-20 | 青岛海尔股份有限公司 | Refrigerator, branch air-supply arrangement and its control method |
CN106196835B (en) * | 2015-08-28 | 2018-03-23 | 青岛海尔股份有限公司 | Branch air-supply arrangement and the refrigerator with the branch air-supply arrangement |
CN106196840B (en) | 2015-08-28 | 2018-02-02 | 青岛海尔股份有限公司 | Branch air-supply arrangement and the refrigerator with the branch air-supply arrangement |
CN106196832B (en) * | 2015-08-28 | 2018-03-23 | 青岛海尔股份有限公司 | Branch air-supply arrangement and the refrigerator with the branch air-supply arrangement |
CN106168426B (en) * | 2015-08-28 | 2018-03-23 | 青岛海尔股份有限公司 | Branch air-supply arrangement and the refrigerator with the branch air-supply arrangement |
CN106196837B (en) * | 2015-09-24 | 2018-07-13 | 青岛海尔股份有限公司 | Refrigerator |
CN105758093B (en) * | 2016-03-09 | 2018-04-20 | 青岛海尔股份有限公司 | Refrigerator and the branch air-supply arrangement for refrigerator |
CN105605848B (en) * | 2016-03-09 | 2018-04-20 | 青岛海尔股份有限公司 | Refrigerator and the branch air-supply arrangement for refrigerator |
CN105650980B (en) | 2016-03-09 | 2018-04-20 | 青岛海尔股份有限公司 | Refrigerator and the branch air-supply arrangement for refrigerator |
CN116336720A (en) * | 2017-12-29 | 2023-06-27 | 青岛海尔电冰箱有限公司 | Refrigerator with a refrigerator body |
CN108302873A (en) * | 2017-12-29 | 2018-07-20 | 青岛海尔股份有限公司 | Branch air-supply arrangement and refrigerator |
CN108302872B (en) * | 2017-12-29 | 2020-04-21 | 青岛海尔股份有限公司 | Branching air supply device and refrigerator |
CN108302874B (en) * | 2017-12-29 | 2020-04-21 | 青岛海尔股份有限公司 | Branching air supply device and refrigerator |
CN108332489A (en) * | 2017-12-29 | 2018-07-27 | 青岛海尔股份有限公司 | Branch air-supply arrangement and refrigerator |
CN108224884A (en) * | 2018-01-22 | 2018-06-29 | 海信(山东)冰箱有限公司 | The ducting assembly and refrigerator of a kind of refrigerator |
US10859302B2 (en) | 2018-09-26 | 2020-12-08 | Haier Us Appliance Solutions, Inc. | Refrigerator appliance with flexible door-in-door compartments |
US11105549B2 (en) | 2018-10-15 | 2021-08-31 | Haier Us Appliance Solutions, Inc. | Refrigerator appliance with a convertible compartment |
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US3364694A (en) * | 1966-12-02 | 1968-01-23 | Whirlpool Co | Refrigerator apparatus |
JPS61259070A (en) * | 1985-05-10 | 1986-11-17 | 株式会社東芝 | Refrigerator |
JPH0544692Y2 (en) * | 1985-09-30 | 1993-11-12 | ||
US4920758A (en) * | 1988-07-18 | 1990-05-01 | Whirlpool Corporation | Refrigerator temperature responsive air outlet baffle |
JPH07305936A (en) * | 1994-05-11 | 1995-11-21 | Matsushita Refrig Co Ltd | Refrigerator |
US20060168990A1 (en) * | 2005-02-01 | 2006-08-03 | Jung-Bum Park | Damper device for refrigerator |
KR100893865B1 (en) * | 2007-03-31 | 2009-04-20 | 엘지전자 주식회사 | Refrigerator |
AU2007351997B2 (en) * | 2007-04-17 | 2010-05-20 | Mitsubishi Electric Corporation | Refrigerator and frozen food preservation method |
KR101402628B1 (en) * | 2007-06-11 | 2014-06-09 | 삼성전자 주식회사 | Refrigerator and operating method of the same |
US9010145B2 (en) * | 2009-06-01 | 2015-04-21 | Samsung Electronics Co., Ltd. | Refrigerator |
KR101809971B1 (en) * | 2011-08-16 | 2017-12-18 | 삼성전자주식회사 | Refrigerator and control method thereof |
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2013
- 2013-04-09 EP EP13162983.4A patent/EP2789937B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
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None * |
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Publication number | Publication date |
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EP2789937A1 (en) | 2014-10-15 |
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