EP2721357B1 - Appareil frigorifique avec canal de circulation d'air - Google Patents

Appareil frigorifique avec canal de circulation d'air Download PDF

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Publication number
EP2721357B1
EP2721357B1 EP12728206.9A EP12728206A EP2721357B1 EP 2721357 B1 EP2721357 B1 EP 2721357B1 EP 12728206 A EP12728206 A EP 12728206A EP 2721357 B1 EP2721357 B1 EP 2721357B1
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EP
European Patent Office
Prior art keywords
board
kitchen appliance
undercuts
appliance according
air channel
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.)
Active
Application number
EP12728206.9A
Other languages
German (de)
English (en)
Other versions
EP2721357A2 (fr
Inventor
Christian Baumann
Michael Krapp
Roland KÜMMEL
Karl-Friedrich Laible
Rainer Spaag
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2721357A2 publication Critical patent/EP2721357A2/fr
Application granted granted Critical
Publication of EP2721357B1 publication Critical patent/EP2721357B1/fr
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/06Walls
    • F25D23/065Details
    • F25D23/066Liners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details 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
    • F25D2317/06Details 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
    • F25D2317/067Details 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 characterised by air ducts
    • F25D2317/0672Outlet ducts

Definitions

  • the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with an air duct in which air flows from or to a storage chamber of the refrigeration appliance, in particular between a storage chamber and an evaporator chamber.
  • a refrigerator according to the preamble of claim 1 is made JP 2001 221 554 A known.
  • the object of the invention is to provide a refrigerator with a storage chamber enclosing a heat-insulating housing and a recessed into a wall surface of the housing and communicating with the storage chamber via openings of a extending between the air duct and the bearing chamber board communicating air duct, which made inexpensive and efficient with different housing dimensions can be.
  • a refrigeration appliance is understood in particular to be a household refrigeration appliance, that is to say a refrigeration appliance which is used for household purposes or possibly also in the gastronomy sector, and in particular for storing food and / or drinks in household quantities at specific temperatures, such as, for example, a refrigerator, a freezer , a fridge freezer, a freezer or a wine storage cabinet.
  • the board is fixed to the wall surface by at least one bracket, which is a bearing on one of the bearing chamber side facing the board centerpiece and emanating from the middle piece, through at least one opening of the board through undercuts the latching hook engaging the air duct.
  • the bracket takes on the task of fixing the air duct overlapping board, this need not be provided in turn with snap hooks.
  • the shape of the board can therefore be much simpler than that of the conventional cover plate, so that a production of the board in the injection molding is not required. Rather, the board can be easily cut from flat material. This makes it possible to provide the board in different dimensions, suitable for different housing dimensions of the refrigeration device, without requiring specific tools for the manufacture of the board for the respective housing size.
  • the board is flat, so that no editing of the sheet is required except for the above-mentioned cutting to manufacture the board.
  • brackets are used for this purpose. Since their dimensions are inevitably smaller than that of the board, a manufacturing in injection molding is economical for the bracket. Since the stirrups can be used in large numbers and in different refrigerator models in identical shape, they can be provided efficiently and inexpensively.
  • the undercuts, in which engage the latching hooks of a bracket are opposite to two side walls of the air channel, so that the latching hooks can hold each other in the undercuts in engagement.
  • the locking hooks when they engage in the undercuts, are biased to hold the board without play against the wall surface of the housing, in which the air duct is recessed.
  • the bracket may have on its side facing the board a flat projection which fills the at least one locking hook interspersed opening of the board, so that the board is held immovable by the engagement of the projection in the direction of its surface.
  • the projection protrusion should not be greater than the thickness of the board to avoid turbulence and pressure drop engagement of the protrusion into the air channel.
  • Optimum flow conditions in the air duct can be realized, in particular, if the projection of the projection corresponds to the thickness of the board, so that a vertex surface of the projection and an inner surface of the board facing the air duct are substantially flush with one another.
  • the bracket can only serve to fix the board; preferably, however, it has an opening overlapping one of the openings of the board to allow the passage of air between the air channel and the storage chamber.
  • This opening may be the same, through which also extends at least one of the latching hooks, but it may also be each different openings.
  • the opening of the stirrup may in particular be shaped as a nozzle in order to control an air flow entering the storage chamber from the air duct.
  • the undercuts in the longitudinal direction of the air channel of wall areas are limited, which are not undercut or at least weaker than said undercuts.
  • the brackets are each only mountable at certain points of the air duct, and slippage of the board and the bracket along the channel and errors in the attachment of the bracket and the board can be avoided.
  • the width of the engaging in the undercuts latch hook is preferably selected according to the width of the undercuts itself, so that displacement of the locking hooks in the undercuts in the longitudinal direction of the air channel is excluded.
  • the absence of gaps between the snap hook and the along The air duct in front of and behind the latch hook wall areas also contributes to the minimization of turbulence in the air duct.
  • flanks of the latching hooks facing the interior of the air duct are substantially flush with the wall regions of the air duct extending in front of and behind the undercuts.
  • the bracket is preferably stiffened by at least one protruding rib.
  • This rib should preferably be arranged on the bearing chamber facing side of the bracket, so as not to affect the flow of air in the air duct.
  • Refrigerating appliance shown in a schematic cross-section is a no-frost household refrigerator with a heat-insulating housing, which includes in a usual way a body 1 and an attached door 2, which define an interior, through an intermediate wall 3 in a storage chamber 4 for refrigerated goods and an evaporator chamber 5 is divided.
  • a refrigerant circuit comprises in a manner known per se also an evaporator 6 arranged in the evaporator chamber 5, a compressor 7 accommodated in a rear recess of the body 1 and a condenser 8.
  • a fan 9 accommodated in the evaporator chamber 5 draws air from the storage chamber 4 via openings 10 in a near-door region of the intermediate wall 3 in the evaporator chamber 5 and presses the evaporator 6 cooled air in an air duct 11, the recessed into the inside of a rear wall 12 of the body 1, extending vertically downward from the evaporator chamber 5.
  • the air duct 11 extends in the width direction of the body 1 only over a central region of the rear wall 12. It is separated from the storage chamber 4 by a planar board 13, of the lateral sections on both sides of the air duct 11, ie based on the illustration of Fig. 1 before and behind the cutting plane, abut against the inner surface of the rear wall 12.
  • the width of the board 13 is variable, it must be at least slightly wider than the air duct 11 to abut on both sides of this safely on the rear wall 13, and it can not exceed the width of the inside of the rear wall 13 correspond.
  • circuit board 13 evenly spaced openings 14 are cut in the vertical direction. This and the variability of the width of the board make it possible to manufacture boards for a variety of refrigeration models with different housing dimensions by having a flat material strip at regular intervals with punched openings and pieces in the length of the respective length to be covered air duct of the band get cut.
  • the circuit board 13 is fixed to the rear wall 12 by means of brackets 15, each having a bearing on the side facing the bearing chamber 4 side of the board 13 center piece and through the covered by the centerpiece opening 14 and anchored on side walls of the air duct 11 locking hooks.
  • the brackets 15 are here each shown with a nozzle-shaped openings which is shaped to form through the opening into the storage chamber 4 exiting cold air to a substantially horizontally propagating in the direction of the door 2 beam. It is also conceivable, however, to replace individual of the bracket 15 by (not shown in the figures) bracket with a closed center piece, which closes the attacked by the locking hooks of the bracket opening 14 of the board 13 substantially tight.
  • Fig. 2 illustrates the anchoring of the board 13 on the rear wall 12 by means of a horizontal section on an enlarged scale.
  • the projecting into the bearing chamber 4 nozzle-shaped opening of the bracket 15 is here designated 18, and on both sides of the opening 18 engage from the central portion 16 of the bracket 15 outgoing hairpin-like curved locking hooks 17 in the air duct 11 a.
  • Undercuts 19 are formed, in which the latching hooks 17 engage.
  • the latching hooks 17 are held under pretensioning between the side walls, so that an elastic tension of the bracket 15, which pushes the latching hooks 17 apart, pulls the center piece 16 against the rear wall 12 and thus keeps the circuit board 13 clamped between the center piece 16 and the rear wall 12.
  • the undercuts 19 occupy only short sections of the side walls of the air duct 11 and are flanked in the longitudinal direction of the air duct 11 on both sides by wall regions 20 which are either not at all or weaker than the undercuts 19 are undercut. If the wall portions 20 are not undercut at all, it may indeed be possible to introduce the latching hooks 17 of a bracket 15 between opposite wall portions 20, but the bracket 15 is not firmly held in this position, and the elastic deformation, the latching hooks 17 at Experience pushing into the air duct 11, drives the bracket 15 back out of the air duct 11.
  • a bracket 15 may indeed temporarily hold between them, but he can not push the board 13 against the rear wall 12, and to find solid, lasting hold, the bracket 15 along the air duct 11th be moved until its locking hooks 17 engage in undercuts 19.
  • the latch hooks 17 each comprise an arcuate in horizontal cross-section end piece 21 which engages positively in an undercut 19, and a cross-sectional profile of the wall sections 20 following, here in cross-section substantially rectilinear, plate-like intermediate piece 22 which at one end with the Centerpiece 16 and at the opposite end to the end piece 21 is connected.
  • the width of this intermediate piece 22 corresponds to the width of the undercut 19, and the intermediate piece 22 is substantially flush with the wall regions 20 delimiting the undercut 19 so that the wall regions 20 together with the intermediate piece 22 form a section in the longitudinal direction of the air channel 11 substantially rectilinear, the circulating air non-vortexing boundary of the air channel 11 form.
  • FIGS. 4 and 5 show the bracket 15 in two perspective views, once from its the storage chamber 4 side facing and once from the air duct 11 side facing.
  • the bearing chamber 4 facing side of the center piece 16 is, as in Fig. 4 to see, substantially flat, except for an around the opening 18 extending, the air flowing through the opening 18 to a beam forming nozzle 23.
  • At the air duct 11 facing side of the bracket 15 is a flat around the opening 18 Molded projection 24, from which the latching hooks 17 go out.
  • the outline of the projection 24 corresponds to the shape of the openings 14 cut into the circuit board 13, so that when the bracket 15 is mounted in one of these openings 14, the circuit board 13 and bracket 15 in parallel to the surface of the board 13 directions immovable against each other. Thanks to the engagement of the projection 24 in the opening 14, when the latching hooks 17, as with reference to Fig. 3 explained, engage positively on the side walls of the air channel 11, the position of the board 13 on the rear wall 12 clearly defined.
  • the projection of the projection 24 on the surrounding rear side of the center piece 16 corresponds to the wall thickness of the board 13, so that a vertex surface 25 of the projection 24 in the mounted state is flush with the inner surface 26 of the board 13 delimiting the air duct 11.
  • the inner surface 26 and the apex surfaces 25 of the bracket 15 thus form a continuous boundary of the air duct 11, where the air can flow past largely turbulence.
  • the strength of the seat of the bracket 15 in the air duct 11 and consequently the force with which the bracket 15 hold the board 13 pressed against the rear wall 12, depends on the rigidity of the latching hooks 17 and the connecting them center piece 16.
  • a stiffening of the middle piece 16 that can be realized with a low material expenditure comprises, as in Fig. 6 shown, two on either side of the nozzle 23 horizontally extending ribs 28 at the front of the center piece 16 or, preferably and as in Fig. 7 shown, pairs of mutually parallel ribs 28, each extending substantially in extension of horizontal upper and lower edges 29 of the nozzle 23.

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Claims (13)

  1. Appareil frigorifique, notamment appareil frigorifique à usage domestique, comprenant un boîtier (1, 2) calorifuge entourant une chambre de stockage (4), un canal d'air (11) enfoncé dans une surface de paroi (12) du boîtier (1, 2) communiquant avec la chambre de stockage (4) par l'intermédiaire d'ouvertures (14) d'une platine (13) s'étendant entre le canal d'air (11) et la chambre de stockage (4), caractérisé en ce que la platine (13) est fixée sur la surface de paroi (12) par au moins un étrier (15) qui comprend une partie médiane (16) adjacente à un côté de la platine (13), tourné vers la chambre de stockage (4), et des crans d'arrêt (17) partant de la partie médiane (16), ayant prise à travers au moins une ouverture (14) de la platine (13) dans des contre-dépouilles (19) du canal d'air (11)
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que la platine (13) est fixée par plusieurs étriers identiques (15) qui sont répartis le long du canal d'air (11).
  3. Appareil frigorifique selon la revendication 1 ou 2, caractérisé en ce que les contre-dépouilles (19) sont opposées l'une à l'autre sur deux parois latérales du canal d'air (11).
  4. Appareil frigorifique selon la revendication 3, caractérisé en ce que les crans d'arrêt (17) ayant prise dans les contre-dépouilles (19) sont précontraints.
  5. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce que la platine (13) est plane.
  6. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étrier (15), sur son côté tourné vers la platine (13), présente une saillie plate (24) qui remplit l'ouverture (14) de la platine (13).
  7. Appareil frigorifique selon la revendication 6, caractérisé en ce que l'éminence de la saillie (24) correspond à l'épaisseur de la platine (13).
  8. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étrier (15) présente une ouverture (18) chevauchant l'une des ouvertures (14) de la platine (13).
  9. Appareil frigorifique selon la revendication 8, caractérisé en ce que l'ouverture (18) de l'étrier (15) est formée comme buse.
  10. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce que les contre-dépouilles (19), dans le sens longitudinal du canal d'air (11), sont délimitées par des parties de paroi (20) réalisées sans contre-dépouilles ou à plus faibles contre-dépouilles que les contre-dépouilles (19).
  11. Appareil frigorifique selon la revendication 10, caractérisé en ce que la largeur des crans d'arrêt (17) ayant prise dans les contre-dépouilles (19) correspond à la largeur des contre-dépouilles (19).
  12. Appareil frigorifique selon la revendication 10 ou 11, caractérisé en ce que des flancs (22) des crans d'arrêt (17), tournés vers l'intérieur du canal d'air (11), se raccordent essentiellement de manière affleurée avec les parties de paroi (20).
  13. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce que l'étrier (15) est renforcé par au moins une nervure (28) faisant saillie sur son côté tourné vers la chambre de stockage (4).
EP12728206.9A 2011-06-20 2012-06-12 Appareil frigorifique avec canal de circulation d'air Active EP2721357B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110077824 DE102011077824A1 (de) 2011-06-20 2011-06-20 Kältegerät mit Luftkanal
PCT/EP2012/061077 WO2012175367A2 (fr) 2011-06-20 2012-06-12 Appareil frigorifique à canal de circulation d'air

Publications (2)

Publication Number Publication Date
EP2721357A2 EP2721357A2 (fr) 2014-04-23
EP2721357B1 true EP2721357B1 (fr) 2016-08-10

Family

ID=46319708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12728206.9A Active EP2721357B1 (fr) 2011-06-20 2012-06-12 Appareil frigorifique avec canal de circulation d'air

Country Status (6)

Country Link
EP (1) EP2721357B1 (fr)
CN (1) CN103608631B (fr)
DE (1) DE102011077824A1 (fr)
PL (1) PL2721357T3 (fr)
RU (1) RU2561447C2 (fr)
WO (1) WO2012175367A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013213378A1 (de) * 2013-07-09 2015-01-15 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Luftkanal
EP3109579B1 (fr) * 2015-06-26 2019-03-13 BSH Hausgeräte GmbH Appareil de refroidissement avec un senseur de pression
DE102015215487A1 (de) 2015-06-26 2016-12-29 BSH Hausgeräte GmbH Kältegerät mit Drucksensor
DE102016210707A1 (de) * 2016-06-15 2017-12-21 BSH Hausgeräte GmbH Kältegerät mit innenliegendem Verdampfer
ES2740818B2 (es) * 2018-08-06 2021-01-20 Bsh Electrodomesticos Espana Sa Aparato refrigerador doméstico con un canal interior de distribución de aire refrigerado

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6112542A (en) * 1998-12-15 2000-09-05 Daewoo Electronics Co., Ltd. Refrigerator having a cooled-air passageway formed with an external surface of a liner
DE69826332D1 (de) 1998-12-18 2004-10-21 Daewoo Electronics Corp Kühlschrank mit einem mittels der aussenoberfläche der innenverkleidung geformten kanal für gekühlte luft
JP3582644B2 (ja) * 2000-02-04 2004-10-27 シャープ株式会社 冷蔵庫
JP2002295948A (ja) * 2001-03-30 2002-10-09 Fujitsu General Ltd 電気冷蔵庫
WO2005003658A2 (fr) * 2003-07-04 2005-01-13 Electrolux Home Products Corporation N.V. Systeme pour la refrigeration d'un compartiment
US7527436B2 (en) * 2004-07-19 2009-05-05 Molex Incorporated Ferrule with tilt correction
DE102005021535A1 (de) * 2005-05-10 2006-11-16 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Umluftkühlung
DE102005021609A1 (de) * 2005-05-10 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Kältegerätekorpus mit Luftkanal
JP5477039B2 (ja) * 2010-02-19 2014-04-23 富士電機株式会社 オープンショーケースの商品陳列棚

Also Published As

Publication number Publication date
WO2012175367A3 (fr) 2013-07-04
EP2721357A2 (fr) 2014-04-23
RU2013156941A (ru) 2015-07-27
WO2012175367A2 (fr) 2012-12-27
PL2721357T3 (pl) 2016-12-30
RU2561447C2 (ru) 2015-08-27
CN103608631A (zh) 2014-02-26
DE102011077824A1 (de) 2012-12-20
CN103608631B (zh) 2015-08-19

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