EP3772625A1 - Kühlschrank - Google Patents

Kühlschrank Download PDF

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Publication number
EP3772625A1
EP3772625A1 EP19190037.2A EP19190037A EP3772625A1 EP 3772625 A1 EP3772625 A1 EP 3772625A1 EP 19190037 A EP19190037 A EP 19190037A EP 3772625 A1 EP3772625 A1 EP 3772625A1
Authority
EP
European Patent Office
Prior art keywords
control device
humidity control
refrigerator appliance
household refrigerator
cap
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
Application number
EP19190037.2A
Other languages
English (en)
French (fr)
Other versions
EP3772625B1 (de
Inventor
Matteo Parnisari
Massimo Pedrazzini
Cem Yilmaz
Maurizio Valle
Carolina Biotti
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.)
Whirlpool Management Emea Srl
Original Assignee
Whirlpool Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Priority to EP19190037.2A priority Critical patent/EP3772625B1/de
Publication of EP3772625A1 publication Critical patent/EP3772625A1/de
Application granted granted Critical
Publication of EP3772625B1 publication Critical patent/EP3772625B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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

Definitions

  • the present invention generally relates to refrigerator appliances and in particular to a household refrigerator appliance having a crisper compartment with a humidity control device.
  • domestic refrigeration appliances generally have a crisper compartment, which is located within a refrigerator cavity and is intended to receive and store fresh vegetables and fruits.
  • a crisper compartment is generally provided with one or more drawers slidably fitted under a shelf of a refrigerator appliance.
  • the refrigerator shelf under which the drawers are arranged may be employed as a lid.
  • the one or more drawers may have a lid of their own. Gaskets may advantageously be associated with either the edges of the drawers or the edges of the shelf or lid(s) to achieve an air-tight sealing.
  • These devices generally comprise venting holes/apertures defining a ventilation passage, whose size can be suitably adjusted to selectively vary fluid communication between the crisper compartment and the refrigerator cavity.
  • a flow of air/gases is allowed to and from the crisper compartment, thus keeping humidity relatively low.
  • This is beneficial for the storage of fruits such as pears and apples, and also allows ethylene gas produced by certain fruits to escape, thus preventing them from rotting quickly.
  • the ventilation passage is in a fully closed position, substantially no airflow is possible, which keeps humidity in the crisper compartment relatively high.
  • Known humidity control devices comprise one or more ventilation holes formed in a trim piece mounted at the front edge of the shelf closing the crisper compartment.
  • a plate member is slidably mounted along the trim piece and can be moved from a closed position, where it covers all ventilation holes, and an open position, where an airflow is allowed through all of them.
  • the adjustment member is rotatably mounted e.g. on a wall of the drawer at the ventilation holes.
  • the adjustment member includes one or more control plates arranged in a circumferential direction on a support portion.
  • the plates have an arc-shaped cross-section whose size corresponds to the width of the ventilation holes.
  • the control plates have a size corresponding to the size of the holes.
  • the support portion features a rounded profile protruding outwards from the drawer, which can be operated by a user's finger for rotation. By rotating the support portion, the position of the control plates relative to the respective ventilation holes can be varied, thereby modifying the degree of opening and thus the airflow to and from the crisper compartment.
  • US 10260799 e.g. discloses a lid mounted in the refrigeration cavity in such a manner that it can be raised and lowered to open and close a crisped compartment.
  • a separating wall is arranged between the lid and a cover member.
  • An operating element in the form of a rotatable knob is arranged on the separating wall and can be used to actuate the lid. To this aim, the operating element is rotated about an axis on an actuation path and can be latched at least in one rotation position along the actuation path.
  • the humidity control devices described above can be improved from the ergonomics point of view, particularly considering the larger and larger number of compartments and drawers available in modern refrigerator appliances.
  • the technical problem underlying and solved by the present invention is therefore to provide a household refrigerator appliance with humidity control means for a crisper compartment that allows to overcome the drawbacks mentioned above with reference to the prior art.
  • a humidity control device is operably associated with the crisper compartment and configured to selectively allow communication of air/gases, also generally referred to as fluids in the following, between the refrigerator cavity and the crisper compartment itself.
  • the humidity control device is a knob mounted on a hole allowing fluid communication between the refrigerator cavity and the crisper compartment.
  • the knob has an outer ring surrounding a cap, said ring and said cap being movable relative to each other in an axial direction, e.g.
  • This configuration of the humidity control device is easy and cheap to manufacture and assemble, while allowing a precise and continuous adjustment of the mutual distance between the ring and the cap. Hence, a fine adjustment of the flow rate of air and gases to and from the crisper compartment can be effectively achieved.
  • the humidity control device may advantageously be provided with graphic indicia in order to help a user identify the closed position and an opening degree in the open position.
  • the humidity control device may also advantageously be provided with a humidity indicator, such as e.g. a humidity sensitive membrane, allowing a user to visualize the humidity level inside the crisper compartment.
  • a humidity indicator such as e.g. a humidity sensitive membrane, allowing a user to visualize the humidity level inside the crisper compartment.
  • the humidity indicator may be associated e.g. with the cap of the knob.
  • An ethylene scrubber may also be associated with the humidity control device, which prevents certain fruits stored in the crisper compartment from rotting quickly.
  • a household refrigerator appliance according to the invention is generally indicated by reference number 100.
  • the refrigerator appliance 100 is shown with reference to a three-dimensional coordinate system.
  • a first axis X and a second axis Y that are mutually perpendicular define a horizontal plane, while a third axis Z, perpendicular to said horizontal plane, defines a vertical axis along which the force of gravity acts.
  • the household refrigerator appliance 100 hereinafter also referred to as refrigerator appliance or refrigerator only, comprises a cabinet 110 whose cavity is configured to store food items.
  • the appliance shown in the drawings is e.g. a "bottom mount" refrigerator, where a refrigerator cavity 111 is formed above a freezer cavity 112 in a vertical direction.
  • the two cavities are separated from each other by a mullion 113 and can be selectively accessed through respective doors (not shown).
  • a crisper compartment 114 is formed in the refrigerator cavity 111.
  • the crisper compartment 114 is defined by a bottom wall, a rear wall and opposite side walls of the refrigerator cavity 111.
  • the crisper compartment 114 is further defined by a shelf 115 of the refrigerator appliance 100, which serves as a top cover.
  • the crisper compartment 114 comprises one or more drawers, e.g. two drawers 116, 117, that are slidably fitted under the shelf 115.
  • the drawers 116, 117 and/or the shelf 115 may advantageously be provided with gaskets.
  • the refrigerator appliance 100 also comprises a humidity control device 120 mounted on a hole formed in the crisper compartment 114 e.g. on the shelf 115, allowing fluid communication between the refrigerator cavity 111 and the crisper compartment 114.
  • the humidity control device 120 is also configured to allow to adjust the flow rate of fluids, in particular air/gases, as it will be explained in greater detail in the following.
  • the humidity control device 120 may be associated with the shelf 115, which serves as a top cover for the drawers 116, 117.
  • the humidity control device 120 is a knob that is mounted e.g. on a hole formed in the shelf 115, or elsewhere on a hole allowing fluid communication between the crisper compartment 114 and the refrigerator cavity 111.
  • the knob has an outer ring 121 surrounding a cap 122 and is configured such that the ring 121 and the cap 122 are movable relative to each other in the axial direction to selectively allow a flow of fluids between the crisper compartment 114, and more particularly to and from the drawers 116, 117, and the refrigerator cavity 111.
  • the outer ring 121 and the cap 122 can be moved relative to each other in the axial direction between a closed position, where they engage each other to form a seal against passage of air and gases, and an open position, where they are spaced apart in the axial direction and allow a flow of air/gases. It will be appreciated that the flow rate of air/gases in the open position depends on the mutual distance between the two members in the axial direction.
  • the knob has a substantially cylindrical shape.
  • the ring 121 features a thread profile 121a formed in its inner periphery that engages a corresponding thread profile 122a formed on the outer periphery of the cap 122. It will be appreciated that, thanks to the threaded coupling, the outer ring 121 and the cap 122 can be rotated relative to each other, thereby being moved in the axial direction. This configuration is advantageous in that it is easy and cheap to manufacture and assemble, while allowing a precise and continuous adjustment of the mutual distance between the ring 121 and the cap 122, which results in a fine adjustment of the flow rate of air and gases.
  • top surfaces of the ring 121 and the cap 122 are aligned and substantially in contact with each other along their peripheries, thereby achieving a substantially air-tight seal.
  • a gasket may be advantageously associated with either or both members to improve sealing.
  • Figure 5 shows an open position where the cap 122 is moved in the axial direction relative to the ring 121 and their top surfaces are spaced apart from each other, thereby allowing a flow of gases as schematically indicated by the arrows.
  • the humidity control device 120 may advantageously be provided with graphic indicia 130 in order to help a user identify the closed position and an opening degree in the open position.
  • the graphic indicia 130 indicate a level of humidity that may be selected within a predefined range.
  • the graphic indicia 130 may be formed e.g. on the surface of the shelf 115 about the ring 121.
  • the graphic indicia 130 may be formed on the ring 121 or on the cap 122.
  • the humidity control device 120 could be arranged on a trim piece 140 mounted at a front edge of the shelf 115.
  • the trim piece 140 may comprise a stepped profile 141 allowing to arrange the humidity control device 120 in an offset position relative to the shelf in the vertical direction Z.
  • the top surface of the knob can thus be easily aligned with the surface of the shelf 115, thereby avoiding any possible interference with the knob when moving objects and/or containers arranged on the latter.
  • a recessed portion 142 may even be formed in the trim piece 140, thereby allowing to protect the knob and to prevent any possible contact with the latter when moving objects and/or containers arranged on the shelf 115.
  • the humidity control device 120 is directly or indirectly associated with the shelf 115 and thus arranged in a substantially horizontal position.
  • the humidity control device 120 might be associated with any one of the drawers and arranged e.g. on a front wall thereof. Each drawer could be provided with a humidity control device 120 in order to allow users to set and adjust the humidity rate depending on the specific products to be stored therein.
  • the humidity control device 120 may advantageously be provided with a humidity indicator, such as e.g. a humidity sensitive membrane, allowing to visualize the humidity level inside the crisper compartment 114.
  • a humidity indicator such as e.g. a humidity sensitive membrane
  • the humidity indicator may be associated e.g. with the cap 122. A user can thus be prompted to adjust the humidity control device 120 in order to increase or decrease the airflow depending on the actual condition shown by the humidity indicator.
  • the humidity control device 120 may advantageously comprise an ethylene scrubber. This advantageously allows to absorb ethylene gas produced by certain fruits in order to preserve their freshness, and thus preventing them from rotting quickly and improving the performances of the humidity control device 120.
  • the ethylene scrubber can e.g. be in the form of a pouch arranged inside the cap 122.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP19190037.2A 2019-08-05 2019-08-05 Kühlschrank Active EP3772625B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19190037.2A EP3772625B1 (de) 2019-08-05 2019-08-05 Kühlschrank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19190037.2A EP3772625B1 (de) 2019-08-05 2019-08-05 Kühlschrank

Publications (2)

Publication Number Publication Date
EP3772625A1 true EP3772625A1 (de) 2021-02-10
EP3772625B1 EP3772625B1 (de) 2023-10-04

Family

ID=67544131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19190037.2A Active EP3772625B1 (de) 2019-08-05 2019-08-05 Kühlschrank

Country Status (1)

Country Link
EP (1) EP3772625B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11268750B1 (en) * 2020-12-23 2022-03-08 Electrolux Home Products, Inc. On door drawer and refrigerating appliance with same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009054681A2 (en) * 2007-10-23 2009-04-30 Lg Electronics Inc. Degassing container for refrigerator
KR20090133008A (ko) 2008-06-23 2009-12-31 엘지전자 주식회사 조절부재를 구비한 냉장고
KR20100004264A (ko) 2008-07-03 2010-01-13 엘지전자 주식회사 냉장고
WO2015082277A1 (de) * 2013-12-06 2015-06-11 BSH Hausgeräte GmbH Haushaltskältegerät mit einem bedienelement zum verstellen eines deckels eines frischhaltebehälters, welches in drei verschiedenen stellungen arretierbar ist
EP3163228A1 (de) * 2015-10-29 2017-05-03 BSH Hausgeräte GmbH Kältemaschine
US20180187966A1 (en) 2017-01-03 2018-07-05 Samsung Electronics Co., Ltd Refrigerator
US10260799B2 (en) 2014-09-12 2019-04-16 Bsh Hausgeraete Gmbh Domestic refrigeration device having a control element designed with an integrated display unit for actuating a cover of a food storage container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009054681A2 (en) * 2007-10-23 2009-04-30 Lg Electronics Inc. Degassing container for refrigerator
KR20090133008A (ko) 2008-06-23 2009-12-31 엘지전자 주식회사 조절부재를 구비한 냉장고
KR20100004264A (ko) 2008-07-03 2010-01-13 엘지전자 주식회사 냉장고
WO2015082277A1 (de) * 2013-12-06 2015-06-11 BSH Hausgeräte GmbH Haushaltskältegerät mit einem bedienelement zum verstellen eines deckels eines frischhaltebehälters, welches in drei verschiedenen stellungen arretierbar ist
US10260799B2 (en) 2014-09-12 2019-04-16 Bsh Hausgeraete Gmbh Domestic refrigeration device having a control element designed with an integrated display unit for actuating a cover of a food storage container
EP3163228A1 (de) * 2015-10-29 2017-05-03 BSH Hausgeräte GmbH Kältemaschine
US20180187966A1 (en) 2017-01-03 2018-07-05 Samsung Electronics Co., Ltd Refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11268750B1 (en) * 2020-12-23 2022-03-08 Electrolux Home Products, Inc. On door drawer and refrigerating appliance with same

Also Published As

Publication number Publication date
EP3772625B1 (de) 2023-10-04

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