EP0532870A1 - Appareil frigorifique, notamment un réfrigérateur ménager - Google Patents

Appareil frigorifique, notamment un réfrigérateur ménager Download PDF

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Publication number
EP0532870A1
EP0532870A1 EP92113066A EP92113066A EP0532870A1 EP 0532870 A1 EP0532870 A1 EP 0532870A1 EP 92113066 A EP92113066 A EP 92113066A EP 92113066 A EP92113066 A EP 92113066A EP 0532870 A1 EP0532870 A1 EP 0532870A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
intermediate wall
cooling
air
cooling device
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
EP92113066A
Other languages
German (de)
English (en)
Other versions
EP0532870B1 (fr
Inventor
Walter Lipp
Peter Mättig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0532870A1 publication Critical patent/EP0532870A1/fr
Application granted granted Critical
Publication of EP0532870B1 publication Critical patent/EP0532870B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25D17/06—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
    • 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
    • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

  • the invention relates to a cooling device, in particular a household refrigerator with a cooling space enclosed by a heat-insulated housing and provided with a door opening on its front side, the temperature of which is obtained by forcibly circulating an air flow generated by a blower over an obscurely arranged in the cooling space behind an intermediate wall Evaporator is kept at least approximately constant.
  • the aim is to keep the temperature distribution in the individual compartments as constant as possible at the intended level in order to be able to store the usually perishable goods stored there over a long period of time without suffering any loss in quality.
  • the invention is therefore based on the object in a refrigerator of the type described in more detail to design the air flow through the evaporator behind the partition wall in such a way that almost the same temperature level can be maintained everywhere without loss of usable space even when the device is fully loaded.
  • the intermediate wall is provided on its side facing the cooling surface of the evaporator with air guiding channels which emerge at different altitudes and, by deflecting and / or changing their cross section, different heat exchange of the air flow carried therein on the cooling surface of the evaporator allow.
  • the air ducts are laterally delimited by ribs extending between the cooling surface and the side of the intermediate wall facing this, the thickness of which corresponds at least approximately to the distance between the evaporator and the intermediate wall.
  • At least three air ducts starting from the upper center of the intermediate wall and the suction opening of the fan located there, extend fan-like downward on the rear wall thereof, the outer ones , are deflected upward in the lower third of the intermediate wall, so that their outlet openings lie at the top, while the intermediate air duct extends to the lower edge of the partition.
  • the intermediate wall is provided in its upper area with projections which extend forward to the door opening, into which the outlet openings of the air ducts on top open.
  • a cooling device 10 designed as a multi-temperature refrigerator has in the central section of its heat-insulated housing 11 a cooling compartment 13 which can be closed with a door 12 on its front side.
  • the door 12 struck on the side of the door opening on the housing 11 is on the inside with this is provided opposite projecting, stacked compartments 14, which serve to hold small-sized refrigerated goods.
  • a planar evaporator 15 in the form of a so-called cold wall evaporator, which is arranged in the upper region of the cooling compartment 13 and extends approximately to the lower third of its full height occupies full width.
  • a niche 16 is arranged in the middle of the cooling compartment 13, just below its ceiling, into which the drive motor 17 of a fan equipped with a fan wheel 18 is recessed.
  • the fan formed from the drive motor 17 and the fan wheel 18, like the evaporator 15, is covered by an intermediate wall 20 which occupies the full width of the rear wall of the cooling compartment and extends from the ceiling down to the level of the lower edge of the evaporator 15 extends.
  • This intermediate wall 20 is provided on its side facing the cooling surface of the evaporator 15 with air guiding channels 21 and 22, which emerge at different altitudes and allow different heat exchange between the air flow guided therein and the cooling surface of the evaporator 15 both through deflections and changes in cross section.
  • the air channels 21 and 22 are laterally delimited by ribs 23 which run on the rear side of the intermediate wall 20 and the thickness of which is dimensioned such that they distance the evaporator 15 from the rear of the intermediate wall 20 correspond so that they fit tightly with their burr against the rear wall of the heat-insulated housing 11 in the assembled state.
  • the air channels 21 and 22 delimited by the ribs 23 extend, starting from a suction opening 25 provided in the upper center of the intermediate wall 20 and surrounded by a collar-like extension 24 enveloping the fan wheel 18, the two lying on the outside Air channels 21 are deflected upwards by a corresponding curvature of the ribs 23 delimiting them in the lower third of the intermediate wall 20, so that their outlet openings 26 are laterally above, while the air channel 22 in between exits at the lower edge of the intermediate wall 20.
  • the intermediate wall 20 is provided in its upper region with projections 27 which extend forward in the vicinity of the door opening of the cooling space 13 and which abut the angled edges 28 on the side walls of the cooling space 13. With their angled edges, these lugs 27 form air ducts into which the outlet openings 26 of the outer air ducts 21 open at the top. With the aid of this air duct, the partial air flow circulated by the blower through the outer channels 21 and cooled on the evaporator 13 is guided into the vicinity of the door opening.
  • a pull-out drawer 30 which is arranged at a distance from the bottom of the housing 11 and whose dimensions are selected such that a continuous air duct 31 is created on its rear wall and bottom as well as on its front side. which forms a continuation of the air duct 22 emerging at the lower edge of the intermediate wall 20.
  • the top opening of the drawer 30 is provided with a cover 32, which has a moisture filter, not shown.
  • a support plate 33 supported on the side walls of the cooling compartment 13, is arranged above the cover 32 of the drawer 30, the front edge of which lies above the front edge of the drawer and, like this, is also at a corresponding distance from the inside of the closed one Door 12 runs so that there remains a passage opening, the cross section of which corresponds approximately to that of the air duct 31 guided around the drawer 15.
  • the rear edge of the support plate 33 lies at the level of the lower edge of the evaporator 15 or the cover 20.
  • the uppermost support plate 34 is located directly below the lower edge of the side lugs 26 on the intermediate wall 20, approximately at the same height as the uppermost storage compartment 14. Its front edge is set back in relation to this, so that when the door 12 is closed, between the outer edge of the storage compartment 14 and the support plate 33, a gap remains, which extends almost over the entire width of the cooling space and allows unimpeded circulation of the cooling air.
  • the partition wall 22 With the arrangement and configuration of the partition wall 22 described, it is possible to achieve a largely uniform temperature distribution in all zones of the cooling space.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
EP92113066A 1991-09-19 1992-07-31 Appareil frigorifique, notamment un réfrigérateur ménager Expired - Lifetime EP0532870B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131211 1991-09-19
DE4131211A DE4131211C1 (fr) 1991-09-19 1991-09-19

Publications (2)

Publication Number Publication Date
EP0532870A1 true EP0532870A1 (fr) 1993-03-24
EP0532870B1 EP0532870B1 (fr) 1996-10-23

Family

ID=6440999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113066A Expired - Lifetime EP0532870B1 (fr) 1991-09-19 1992-07-31 Appareil frigorifique, notamment un réfrigérateur ménager

Country Status (5)

Country Link
EP (1) EP0532870B1 (fr)
AT (1) ATE144614T1 (fr)
DE (2) DE4131211C1 (fr)
ES (1) ES2096681T3 (fr)
TR (1) TR28533A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793066A3 (fr) * 1996-03-01 1999-07-21 Liebherr-Hausgeräte Gmbh Réfrigérateur avec compartiments de refroidissement à des températures différentes
EP1293739A2 (fr) 2001-09-12 2003-03-19 Electrolux Home Products Corporation N.V. Appareil frigorifique à deux compartiments de rangement superposés et un évaporateur assisté par un ventilateur

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327444A1 (de) * 1993-08-14 1995-02-16 Indramat Gmbh Kühleinrichtung für einen Schaltschrank
MY122559A (en) * 1994-04-04 2006-04-29 Samsung Electronics Co Ltd Refrigerator.
DE29502800U1 (de) * 1995-02-17 1995-04-20 Bosch Siemens Hausgeraete Kühlgerät, insbesondere Haushalts-Kühlschrank
DE10049574A1 (de) 2000-10-06 2002-04-11 Bsh Bosch Siemens Hausgeraete Kühlgerät
DE10139835A1 (de) 2001-08-14 2003-02-27 Bsh Bosch Siemens Hausgeraete Kühlgerät
DE10143242A1 (de) 2001-09-04 2003-03-20 Bsh Bosch Siemens Hausgeraete Kältegerät mit Kühlluftzirkulation
DE102011113211A1 (de) * 2011-09-12 2013-03-14 Liebherr-Hausgeräte Ochsenhausen GmbH Kühl- und/oder Gefriergerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB866140A (en) * 1958-12-19 1961-04-26 Gen Motors Corp Improved household refrigerator
GB895548A (en) * 1960-01-25 1962-05-02 Gen Motors Corp Improved forced-air refrigerator
GB950091A (en) * 1959-09-09 1964-02-19 Philco Corp Improvements in and relating to refrigeration and refrigeration apparatus
FR2379780A1 (fr) * 1977-02-03 1978-09-01 Forster Ag Hermann Procede pour la conservation au froid et le maintien en bon etat des produits frais, et meuble frigorifique pour la mise en oeuvre de ce procede

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028673A1 (de) * 1980-07-29 1982-03-04 Eisfink Carl Fink GmbH & Co, 7144 Asberg Temperierschrank fuer getraenke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB866140A (en) * 1958-12-19 1961-04-26 Gen Motors Corp Improved household refrigerator
GB950091A (en) * 1959-09-09 1964-02-19 Philco Corp Improvements in and relating to refrigeration and refrigeration apparatus
GB895548A (en) * 1960-01-25 1962-05-02 Gen Motors Corp Improved forced-air refrigerator
FR2379780A1 (fr) * 1977-02-03 1978-09-01 Forster Ag Hermann Procede pour la conservation au froid et le maintien en bon etat des produits frais, et meuble frigorifique pour la mise en oeuvre de ce procede

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0793066A3 (fr) * 1996-03-01 1999-07-21 Liebherr-Hausgeräte Gmbh Réfrigérateur avec compartiments de refroidissement à des températures différentes
EP1293739A2 (fr) 2001-09-12 2003-03-19 Electrolux Home Products Corporation N.V. Appareil frigorifique à deux compartiments de rangement superposés et un évaporateur assisté par un ventilateur

Also Published As

Publication number Publication date
ATE144614T1 (de) 1996-11-15
DE4131211C1 (fr) 1992-10-29
DE59207424D1 (de) 1996-11-28
ES2096681T3 (es) 1997-03-16
EP0532870B1 (fr) 1996-10-23
TR28533A (tr) 1996-09-30

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