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IT1255045B - METHOD AND DEVICE TO DETECT AND CONTROL THE FORMATION OF Rime On An EVAPORATOR OF A REFRIGERATOR - Google Patents

METHOD AND DEVICE TO DETECT AND CONTROL THE FORMATION OF Rime On An EVAPORATOR OF A REFRIGERATOR

Info

Publication number
IT1255045B
IT1255045B ITMI920769A ITMI920769A IT1255045B IT 1255045 B IT1255045 B IT 1255045B IT MI920769 A ITMI920769 A IT MI920769A IT MI920769 A ITMI920769 A IT MI920769A IT 1255045 B IT1255045 B IT 1255045B
Authority
IT
Italy
Prior art keywords
evaporator
conductor
signal
formation
control means
Prior art date
Application number
ITMI920769A
Other languages
Italian (it)
Inventor
Daniele Turetta
Original Assignee
Whirlpool Italia
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 Italia filed Critical Whirlpool Italia
Priority to ITMI920769A priority Critical patent/IT1255045B/en
Publication of ITMI920769A0 publication Critical patent/ITMI920769A0/en
Priority to DE69318878T priority patent/DE69318878T2/en
Priority to EP93104737A priority patent/EP0563751B1/en
Publication of ITMI920769A1 publication Critical patent/ITMI920769A1/en
Application granted granted Critical
Publication of IT1255045B publication Critical patent/IT1255045B/en

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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/02—Detecting the presence of frost or condensate

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)
  • Defrosting Systems (AREA)

Abstract

Un metodo per rilevare la formazione di brina su un usuale evaporatore (1, 20) di un refrigeratore, ad esempio di tipo statico, prevede il rilevare la variazione di un segnale elettrico (VA) generato da almeno un conduttore (8) alimentato elettricamente, associato all'evaporatore (1, 20) ed in funzione di tale variazione, il comandare un usuale elemento riscaldante (13) associato all'evaporatore (1, 20) per lo sbrinamento di quest'ultimo. Tale metodo viene attuato da un dispositivo comprendente almeno un conduttore elettrico (8) associato all'evaporatore (1, 20), mezzi di comando (30) dell'alimentazione di tale conduttore (8) e mezzi di controllo (32) di un segnale elettrico (V A) generato da tale conduttore, detto segnale (VA) variando in funzione della brina presente sull'evaporatore (1, 20), detti mezzi di controllo (32) con-frontando tale segnale (VA) con un valore di riferimento (VR) ed in funzione di tale confronto, intervenendo sull'elemento riscaldante.A method for detecting the formation of frost on a usual evaporator (1, 20) of a chiller, for example of the static type, involves detecting the variation of an electrical signal (VA) generated by at least one electrically powered conductor (8), associated with the evaporator (1, 20) and according to this variation, controlling a usual heating element (13) associated with the evaporator (1, 20) for defrosting the latter. This method is carried out by a device comprising at least one electrical conductor (8) associated with the evaporator (1, 20), control means (30) for feeding said conductor (8) and control means (32) for a signal. electric (VA) generated by this conductor, said signal (VA) varying as a function of the frost present on the evaporator (1, 20), said control means (32) comparing this signal (VA) with a reference value ( VR) and according to this comparison, intervening on the heating element.

ITMI920769A 1992-03-31 1992-03-31 METHOD AND DEVICE TO DETECT AND CONTROL THE FORMATION OF Rime On An EVAPORATOR OF A REFRIGERATOR IT1255045B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI920769A IT1255045B (en) 1992-03-31 1992-03-31 METHOD AND DEVICE TO DETECT AND CONTROL THE FORMATION OF Rime On An EVAPORATOR OF A REFRIGERATOR
DE69318878T DE69318878T2 (en) 1992-03-31 1993-03-23 Device for detecting and controlling ice formation on a refrigerator evaporator
EP93104737A EP0563751B1 (en) 1992-03-31 1993-03-23 Device for sensing and controlling frost formation on a refrigerator evaporator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI920769A IT1255045B (en) 1992-03-31 1992-03-31 METHOD AND DEVICE TO DETECT AND CONTROL THE FORMATION OF Rime On An EVAPORATOR OF A REFRIGERATOR

Publications (3)

Publication Number Publication Date
ITMI920769A0 ITMI920769A0 (en) 1992-03-31
ITMI920769A1 ITMI920769A1 (en) 1993-10-01
IT1255045B true IT1255045B (en) 1995-10-17

Family

ID=11362713

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920769A IT1255045B (en) 1992-03-31 1992-03-31 METHOD AND DEVICE TO DETECT AND CONTROL THE FORMATION OF Rime On An EVAPORATOR OF A REFRIGERATOR

Country Status (3)

Country Link
EP (1) EP0563751B1 (en)
DE (1) DE69318878T2 (en)
IT (1) IT1255045B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0713065B1 (en) * 1994-11-17 2001-01-10 Whirlpool Europe B.V. Compact-dimension device for sensing frost on a refrigerator evaporator
IT240417Y1 (en) * 1996-01-30 2001-04-02 Whirlpool Europ S R L DEVICE TO DETECT THE FORMATION OF RAIN AND TO ELIMINATE IT FOR HEATING PARTICULARLY FOR REFRIGERATOR EVAPORATORS
US7836710B2 (en) 2002-05-16 2010-11-23 Bsh Bosch Und Siemens Hausgeraete Gmbh Freezer with defrosting indicator
DE10221903A1 (en) * 2002-05-16 2003-12-04 Bsh Bosch Siemens Hausgeraete Freezer with defrost indicator
RU2415355C2 (en) * 2006-07-18 2011-03-27 Арчелык Аноним Ширкети Cooling device
US9562757B2 (en) 2009-10-02 2017-02-07 The Controls Group, Inc. Removal of an accumulated frozen substance from a cooling unit
ITUD20130108A1 (en) 2013-08-13 2015-02-14 New Technology Consultants N T C CONTROL DEVICE FOR THE FUNCTIONING OF A HEAT EXCHANGER, HEAT EXCHANGER INCLUDING THE DEVICE AND ITS CONTROL PROCEDURE
DE102014221317A1 (en) * 2014-10-21 2016-04-21 BSH Hausgeräte GmbH Domestic refrigeration appliance with a tire detection sensor which is designed to detect a frost formation on an evaporator of a refrigeration device of the household refrigerating appliance
CN110749151A (en) * 2019-10-16 2020-02-04 长虹美菱股份有限公司 Refrigerator defrosting control method and refrigerator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347709A (en) * 1981-01-19 1982-09-07 Honeywell Inc. Demand defrost sensor
US4732009A (en) * 1986-06-26 1988-03-22 Whirlpool Corporation Refrigerator compartment and method for accurately controlled temperature

Also Published As

Publication number Publication date
DE69318878T2 (en) 1998-10-22
DE69318878D1 (en) 1998-07-09
ITMI920769A0 (en) 1992-03-31
EP0563751A1 (en) 1993-10-06
EP0563751B1 (en) 1998-06-03
ITMI920769A1 (en) 1993-10-01

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950327