EP0272761A2 - Congélateur vertical avec accumulation sélective de givre - Google Patents

Congélateur vertical avec accumulation sélective de givre Download PDF

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Publication number
EP0272761A2
EP0272761A2 EP87202589A EP87202589A EP0272761A2 EP 0272761 A2 EP0272761 A2 EP 0272761A2 EP 87202589 A EP87202589 A EP 87202589A EP 87202589 A EP87202589 A EP 87202589A EP 0272761 A2 EP0272761 A2 EP 0272761A2
Authority
EP
European Patent Office
Prior art keywords
section
series
freezer
upright freezer
upright
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.)
Withdrawn
Application number
EP87202589A
Other languages
German (de)
English (en)
Other versions
EP0272761A3 (fr
Inventor
Franco Germi
Franco Moretti
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.)
IRE Industrie Riunite Eurodomestici SpA
Whirlpool International BV
Original Assignee
IRE SpA
IRE Industrie Riunite Eurodomestici SpA
Philips Gloeilampenfabrieken NV
Whirlpool International BV
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
Priority claimed from IT2423786U external-priority patent/IT209378Z2/it
Priority claimed from IT2170887U external-priority patent/IT210394Z2/it
Application filed by IRE SpA, IRE Industrie Riunite Eurodomestici SpA, Philips Gloeilampenfabrieken NV, Whirlpool International BV filed Critical IRE SpA
Publication of EP0272761A2 publication Critical patent/EP0272761A2/fr
Publication of EP0272761A3 publication Critical patent/EP0272761A3/fr
Withdrawn legal-status Critical Current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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/144—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans
    • F25D2321/1441—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans inside a refrigerator
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • This invention relates to an upright freezer comprising an insulated housing defining a preservation compartment closed by an insulated door and containing a series of shelves, a refrigeration circuit formed from a compressor, a condenser bank, a throttling member and an evaporator formed from various section in series, each associated with or forming part of one of the shelves.
  • the object of the present invention is to obviate these drawbacks by facilitating the defrosting operating and effectively opposing frost formation on the evaporator sections, this being done by providing selective frost accumulation at a predetermined point of the preservation compartment.
  • this object is attained according to the invention by providing in the top of the preservation compartment a further evaporator section disposed in series with the others and connected to these latter by way of a further throttling member.
  • This further section disposed in the "hottest" part of the preservation compartment, thus assumes a temperature lower than the other sections, so that the moisture is removed in the form of frost on this section without affecting the others.
  • Figure 7 is a perspective view, partly sectioned for greater clarity, of an evaporator section of Figure 4.
  • the reference numeral 1 indicates the insulated housing or cabinet of an upright freezer. This defines a preservation compartment 2 closed by an insulated door 13. Fixed shelves 3A, B, C etc are situated at various levels in this compartment, and on which the foodstuffs to be preserved or frozen are supported either directly or in extractable baskets 4.
  • the upright freezer comprises a refrigeration circuit formed from a compressor 5, a condenser bank 6 disposed on the rear of the housing 1, throttling member 7 (consisting for example of a conventional capillary) and an evaporator bank comprising various sections 8A, 8B, 8C, 8D, 8E connected in series, each of which being associated with one of the shelves 3A, 3B, 3C... as shown in Figure 3, in which the shelf is formed from a conventional refrigerated grid 9.
  • the shelf can be formed from a plate clinched to the aluminium tube of the coil.
  • a further evaporator upper section 8E, 8F which is connected to the other sections by way of a further throttling member 18 (for example consisting of a conventional capillary), so that this section when in operation assumes a lower temperature than the other sec­tions.
  • a defrosting electrical resistance element 10 is provided in contact with the evaporator section.
  • the drip tray is provided with another electrical resistance element 14 of lesser power than element 10, the purpose of which being to melt the ice pieces which fall into the drip tray.
  • the drip tray conveys the water to a collector 15 fixed to the rear wall of the compartment 2 and connected to a discharge pipe 16 which emerges from the housing and terminates above evaporation tray 17 disposed on the compressor 5, the heat of which is used for evaporating this water.
  • Fig. 4 an embodiment of a drip tray 12 is illustrated.
  • the drip tray is connected in such a way that the air can freely move from and towards section 8E.
  • the drip tray comprises two rows of inclined channels 12A disposed at different heights and offset from each other, the channels of the lower row having a width L which is greater than the distance D between two channels of the upper row. The air moves in the direction shown by the arrows of Figure 4.
  • the further evaporator section 8F is U-shaped.
  • the three legs of the U extend along the inner walls of the preservation compartment and are connected to the walls by means of known spacers (not shown).
  • the section 8F may comprise a flat pipe coil 10, between the branches of which there extend pieces 11 to act as fins.
  • Said section is disposed above a drip channel 13 of similar shape fixed in any known manner to the inner walls of the compartment 2.
  • the drip channel 13 has a sloping base in order to convey the water resulting from defrosting towards a pipe 16.
  • the pipe 16 terminates above an evaporation tray 17 dis­posed on the compressor 5, the heat of which is used for evaporating this water.
  • a tray 19 placed above a portion 6A of the condenser bank 6 can be provided for collecting the water resulting from defrosting.
  • the tray 19 can either be present alone or can supplement the evaporation tray 17, in which case either it can be con­nected in the usual manner to this latter or the two trays can receive the condensation water from two different pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Defrosting Systems (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
EP87202589A 1986-12-24 1987-12-21 Congélateur vertical avec accumulation sélective de givre Withdrawn EP0272761A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT2423786U IT209378Z2 (it) 1986-12-24 1986-12-24 Congelatore verticale ad accumulazione selettive della brina.
IT2423786U 1986-12-24
IT2170887U IT210394Z2 (it) 1987-06-02 1987-06-02 Congelatore verticale ad accumulazione e scarico selettivi della brina.
IT2170887U 1987-06-02

Publications (2)

Publication Number Publication Date
EP0272761A2 true EP0272761A2 (fr) 1988-06-29
EP0272761A3 EP0272761A3 (fr) 1990-01-10

Family

ID=26327975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87202589A Withdrawn EP0272761A3 (fr) 1986-12-24 1987-12-21 Congélateur vertical avec accumulation sélective de givre

Country Status (1)

Country Link
EP (1) EP0272761A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010958A1 (fr) * 1998-12-15 2000-06-21 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique
WO2005017425A1 (fr) 2003-08-11 2005-02-24 BSH Bosch und Siemens Hausgeräte GmbH Appareil refrigerant en deux parties
CN114165960A (zh) * 2021-11-30 2022-03-11 安徽康佳同创电器有限公司 冷藏室均温的直冷冰箱

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268363A (en) * 1940-12-16 1941-12-30 Fedders Mfg Co Inc Drain baffle
US2890574A (en) * 1955-05-02 1959-06-16 Amana Refrigeration Inc Frost attractor for refrigerators
FR1402473A (fr) * 1964-07-27 1965-06-11 Siemens Elektrogeraete Gmbh Armoire réfrigératrice équipée avec un réfrigérateur à compression

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268363A (en) * 1940-12-16 1941-12-30 Fedders Mfg Co Inc Drain baffle
US2890574A (en) * 1955-05-02 1959-06-16 Amana Refrigeration Inc Frost attractor for refrigerators
FR1402473A (fr) * 1964-07-27 1965-06-11 Siemens Elektrogeraete Gmbh Armoire réfrigératrice équipée avec un réfrigérateur à compression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010958A1 (fr) * 1998-12-15 2000-06-21 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique
WO2005017425A1 (fr) 2003-08-11 2005-02-24 BSH Bosch und Siemens Hausgeräte GmbH Appareil refrigerant en deux parties
CN114165960A (zh) * 2021-11-30 2022-03-11 安徽康佳同创电器有限公司 冷藏室均温的直冷冰箱

Also Published As

Publication number Publication date
EP0272761A3 (fr) 1990-01-10

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Inventor name: MORETTI, FRANCO