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WO2002016843A1 - Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment - Google Patents

Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment Download PDF

Info

Publication number
WO2002016843A1
WO2002016843A1 PCT/IN2000/000076 IN0000076W WO0216843A1 WO 2002016843 A1 WO2002016843 A1 WO 2002016843A1 IN 0000076 W IN0000076 W IN 0000076W WO 0216843 A1 WO0216843 A1 WO 0216843A1
Authority
WO
WIPO (PCT)
Prior art keywords
compartment
freezer
fresh food
refrigerator
food compartment
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.)
Ceased
Application number
PCT/IN2000/000076
Other languages
French (fr)
Inventor
Suryaprakash Chittampalli
Ramgopal Murthy
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.)
BPL REFRIGERATION Ltd
Original Assignee
BPL REFRIGERATION Ltd
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 BPL REFRIGERATION Ltd filed Critical BPL REFRIGERATION Ltd
Priority to AU2001218831A priority Critical patent/AU2001218831A1/en
Priority to PCT/IN2000/000076 priority patent/WO2002016843A1/en
Publication of WO2002016843A1 publication Critical patent/WO2002016843A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling 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
    • 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
    • F25D2317/065—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 characterised by the air return
    • F25D2317/0653—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 characterised by the air return through the mullion
    • 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
    • F25D2317/067—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 characterised by air ducts
    • F25D2317/0672—Outlet ducts
    • 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
    • F25D2317/068—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 characterised by the fans
    • F25D2317/0681—Details thereof
    • 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
    • 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

Definitions

  • the invention relates to a frost free refrigerator having means to convert the freezer compartment also to fresh food compartment .
  • a conventional domestic frost free refrigerator comprises a freezer compartment and a fresh food compartment. The two
  • compartments are separated by a thick wall of insulation.
  • the different temperatures required in these compartments are attained and maintained by controlling the cold air flow
  • the freezer temperature is maintained well below the fresh food compartment by allowing more cold air flow into the freezer compartment.
  • thermostat maintains the required temperature by controlling the compressor run time and/or by controlling the air flow.
  • frost free refrigerator has a bigger freezer compartment compared with the direct cooling type refrigerator due to its inherent constructional features.
  • refrigerator is mainly used for keeping fresh food at temperatures above 0°C, it may be advantageous to provide a
  • the invention provides a frost free refrigerator having
  • said refrigerator comprising : a freezer compartment ; a fresh food compartment having a vegetable
  • crisper a crisper ; a compressor ; an evaporater ; and a fan for providing cool air flow into the refrigerator compartments characterised by a control means for controlling the quantity of cold air flow to the freezer compartment and
  • Fig. 1 shows the sectional view of a conventional domestic frost free refrigerator
  • Fig. 2 shows the enlarged view of the portion indicated by
  • Fig. 3 shows the sectional view of a domestic frost free
  • Fig. 4 shows the enlarged view of the portion indicated by
  • the conventional frost free refrigerator comprises a freezer
  • Air flow to fresh food compartment between the insulation freezer partition (8) and the freezer partition (9) is indicated by reference numeral 5 in Fig's 1 and 3.
  • Fig. 3 The frost free refrigerator according to the invention is shown in Fig. 3 which has all the abovement ioned features of the conventional frost free refrigerator and they are indicated by the same reference numerals.
  • Fig. 3 has all the abovement ioned features of the conventional frost free refrigerator and they are indicated by the same reference numerals.
  • a control means for controlling the proportion of the air flow to the freezer compartment (1) and fresh food compartment (2).
  • This control means comprises an inner buffle (11) supported by the freezer partition (9).
  • the inner buffle (11) is movable with respect to an outer buffle (10) fixed to the
  • the inner buffle (11) is provided with a knob (12) to enable it to move relative to the outer buffle (10). By doing so, the ratio of the quantity of air flow into the freezer compartment (1) to
  • both the freezer compartment (1) and the fresh food compartment can be maintained more or less at the same
  • buffle (11) is provided concentric with the outer buffle (10) to enable control of the quantity of air flow to each said compartments by turning the knob (12).
  • frost free refrigerator according to the invention can be used in a normal mode with freezer compartment having temperature below 0°C and with freezer compartment having

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)

Abstract

A frost free refrigerator having provision for converting freezer compartment also to fresh food compartment is provided. The refrigerator comprises a freezer compartment (1), a fresh food compartment (2) having a vegetable crisper, a compressor (4), an evaporator (6), and a fan (7) for providing cool air flow into the refrigerator compartments. A control means is provided for controlling the quantity of cold air flow to the freezer compartment (1) and fresh food compartment (2).

Description

FROST FREE REFRIGERATOR HAVING MEANS TO CONVERT THE FREEZER COMPARTMENT ALSO TO FRESH FOOD COMPARTMENT
Technical field
The invention relates to a frost free refrigerator having means to convert the freezer compartment also to fresh food compartment .
Background of the invention
A conventional domestic frost free refrigerator comprises a freezer compartment and a fresh food compartment. The two
compartments are separated by a thick wall of insulation. The different temperatures required in these compartments are attained and maintained by controlling the cold air flow
into these compartments. The freezer temperature is maintained well below the fresh food compartment by allowing more cold air flow into the freezer compartment. A
thermostat maintains the required temperature by controlling the compressor run time and/or by controlling the air flow.
In general the frost free refrigerator has a bigger freezer compartment compared with the direct cooling type refrigerator due to its inherent constructional features.
If the frozen food usage is less and seasonal and the
refrigerator is mainly used for keeping fresh food at temperatures above 0°C, it may be advantageous to provide a
mechanism to convert the freezer compartment also to fresh
food compartment to increase the fresh food storage capacity.
Disclosure of the invention
The invention provides a frost free refrigerator having
provision for converting freezer compartment also to fresh food compartment, said refrigerator comprising : a freezer compartment ; a fresh food compartment having a vegetable
crisper ; a compressor ; an evaporater ; and a fan for providing cool air flow into the refrigerator compartments characterised by a control means for controlling the quantity of cold air flow to the freezer compartment and
fresh food compartment. Brief description of the drawings :
The invention will now be described in detail with reference to the accompanying drawings :
Fig. 1 shows the sectional view of a conventional domestic frost free refrigerator
Fig. 2 shows the enlarged view of the portion indicated by
'A' in Fig. 1
Fig. 3 shows the sectional view of a domestic frost free
refrigerator according to the invention
Fig. 4 shows the enlarged view of the portion indicated by
'B' in Fig. 3.
Best mode for carrying out the invention :
The conventional frost free refrigerator comprises a freezer
compartment (1), fresh food compartment (2) having a vegetable crisper (3) and a compressor unit (4). An evaporater (6) and a fan (7) provides cool air to the refrigerator compartments through an insulation freezer partition (8) and a freezer partition (9). The temperature of the respective refrigerator compartments are maintained at the desired levels by means of a thermostat. The cold
air supply portion is indicated with letter 'A' in Fig. 1 and an enlarged view of this portion is shown in Fig. 2.
Air flow to fresh food compartment between the insulation freezer partition (8) and the freezer partition (9) is indicated by reference numeral 5 in Fig's 1 and 3.
The frost free refrigerator according to the invention is shown in Fig. 3 which has all the abovement ioned features of the conventional frost free refrigerator and they are indicated by the same reference numerals. In addition, as
shown in Fig's 3 and 4, it is provided with a control means for controlling the proportion of the air flow to the freezer compartment (1) and fresh food compartment (2).
This control means comprises an inner buffle (11) supported by the freezer partition (9). The inner buffle (11) is movable with respect to an outer buffle (10) fixed to the
insulation freezer partition (8). The inner buffle (11) is provided with a knob (12) to enable it to move relative to the outer buffle (10). By doing so, the ratio of the quantity of air flow into the freezer compartment (1) to
that into the fresh food compartment (2) can be varied. Thus both the freezer compartment (1) and the fresh food compartment can be maintained more or less at the same
temperature by means of the knob (12). Preferably the inner
buffle (11) is provided concentric with the outer buffle (10) to enable control of the quantity of air flow to each said compartments by turning the knob (12).
The frost free refrigerator according to the invention can be used in a normal mode with freezer compartment having temperature below 0°C and with freezer compartment having
nearly same temperature as that of the fresh food compartment as the user desires.

Claims

CLAIMS :
1. A frost free refrigerator having provision for converting freezer compartment also to fresh food
compartment, said refrigerator comprising : a freezer compartment (1) ; a fresh food compartment (2) having a
vegetable crisper (3) ; a compressor (4) ; an evaporater (6)
; and a fan (7) for providing cool air flow into the refrigerator compartments characterised by a control means for controlling the quantity of cold air flow (5) to the
freezer compartment (1) and fresh food compartment (2).
2. A frost free refrigerator as claimed in Claim 1, wherein the said control means comprises an insulation- freezer partition (8) providing air passages to the refrigerator compartments and separates cold air having the
fan (7) and return air passing through the evaporater (6) ; a freezer partition (9) having air passages through which the cold air is supplied to the freezer compartment (1) and
the fresh food compartment (2) ; an outer buffle (10) fixed to the insulation-freezer partition (8) and an inner buffle (11) supported by the freezer partition (9) and capable of moving with respect to the outer buffle (10) for controlling the air flow into the freezer compartment (1) and fresh food compartment (2) .
3. A frost free refrigerator as claimed in Claim 2, wherein the inner buffle (11) is provided concentrically
with the outer buffle (10) and supported by the freezer
partition (9) with a knob (12) enabling control of air flow into the freezer compartment (1) and fresh food compartment (2) by turning the knob (12).
4. A frost free refrigerator having means to convert the freezer compartment also to fresh food compartment substantially as hereinabove described with reference to the accompanying drawings.
PCT/IN2000/000076 2000-08-23 2000-08-23 Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment Ceased WO2002016843A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001218831A AU2001218831A1 (en) 2000-08-23 2000-08-23 Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment
PCT/IN2000/000076 WO2002016843A1 (en) 2000-08-23 2000-08-23 Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2000/000076 WO2002016843A1 (en) 2000-08-23 2000-08-23 Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment

Publications (1)

Publication Number Publication Date
WO2002016843A1 true WO2002016843A1 (en) 2002-02-28

Family

ID=11076263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2000/000076 Ceased WO2002016843A1 (en) 2000-08-23 2000-08-23 Frost free refrigerator having means to convert the freezer compartment also to fresh food compartment

Country Status (2)

Country Link
AU (1) AU2001218831A1 (en)
WO (1) WO2002016843A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004040211A1 (en) * 2002-10-29 2004-05-13 BSH Bosch und Siemens Hausgeräte GmbH No-frost refrigerator
EP1637822A4 (en) * 2003-06-23 2011-07-27 Air Operation Technologies Inc Cooling device
EP2559960A3 (en) * 2011-08-16 2017-07-05 Samsung Electronics Co., Ltd. Refrigerator and control method thereof
EP3249325A1 (en) * 2016-05-26 2017-11-29 LG Electronics Inc. Refrigerator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614092A (en) * 1982-07-12 1986-09-30 Gold Star Company, Ltd. Refrigerator with a closeable refrigerating compartment
US4642998A (en) * 1985-09-06 1987-02-17 Samsung Electronic Co., Ltd. Refrigerator cooling air flow control apparatus
EP0541172A2 (en) * 1991-11-08 1993-05-12 CANDY S.p.A. No-frost plural-compartment refrigerator
EP0553426A1 (en) * 1992-01-28 1993-08-04 Whirlpool Europe B.V. Convertable combination refrigerator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614092A (en) * 1982-07-12 1986-09-30 Gold Star Company, Ltd. Refrigerator with a closeable refrigerating compartment
US4642998A (en) * 1985-09-06 1987-02-17 Samsung Electronic Co., Ltd. Refrigerator cooling air flow control apparatus
EP0541172A2 (en) * 1991-11-08 1993-05-12 CANDY S.p.A. No-frost plural-compartment refrigerator
EP0553426A1 (en) * 1992-01-28 1993-08-04 Whirlpool Europe B.V. Convertable combination refrigerator

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004040211A1 (en) * 2002-10-29 2004-05-13 BSH Bosch und Siemens Hausgeräte GmbH No-frost refrigerator
CN100430676C (en) * 2002-10-29 2008-11-05 Bsh博施及西门子家用器具有限公司 Frost-free refrigeration appliance
US7654106B2 (en) 2002-10-29 2010-02-02 Bsh Bosch Und Siemens Hausgeraete Gmbh No-frost refrigerator
EP1637822A4 (en) * 2003-06-23 2011-07-27 Air Operation Technologies Inc Cooling device
US9080809B2 (en) 2003-06-23 2015-07-14 Kogasangyo Co., Ltd. Cooling device with a fan, a partition and a multiple air flow colliding aperture in the partition for defrosting purposes
EP2559960A3 (en) * 2011-08-16 2017-07-05 Samsung Electronics Co., Ltd. Refrigerator and control method thereof
EP3249325A1 (en) * 2016-05-26 2017-11-29 LG Electronics Inc. Refrigerator
CN107436066A (en) * 2016-05-26 2017-12-05 Lg电子株式会社 Refrigerator
US10527338B2 (en) 2016-05-26 2020-01-07 Lg Electronics Inc. Refrigerator
CN107436066B (en) * 2016-05-26 2020-03-03 Lg电子株式会社 Refrigerator with a door
US10690390B2 (en) 2016-05-26 2020-06-23 Lg Electronics Inc. Refrigerator
EP4180750A1 (en) * 2016-05-26 2023-05-17 LG Electronics Inc. Refrigerator

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