IT1298956B1 - Dispositivo per il controllo con elevata precisione di una grandezza fisica quale la temperatura o l'umidita' entro un elettrodomestico - Google Patents

Dispositivo per il controllo con elevata precisione di una grandezza fisica quale la temperatura o l'umidita' entro un elettrodomestico

Info

Publication number
IT1298956B1
IT1298956B1 IT98MI000654A ITMI980654A IT1298956B1 IT 1298956 B1 IT1298956 B1 IT 1298956B1 IT 98MI000654 A IT98MI000654 A IT 98MI000654A IT MI980654 A ITMI980654 A IT MI980654A IT 1298956 B1 IT1298956 B1 IT 1298956B1
Authority
IT
Italy
Prior art keywords
appliance
humidity
temperature
control
high precision
Prior art date
Application number
IT98MI000654A
Other languages
English (en)
Inventor
Andrea Corda
Adriano Scaburri
Luigi Saporiti
Original Assignee
Whirlpool Co
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 Co filed Critical Whirlpool Co
Priority to IT98MI000654A priority Critical patent/IT1298956B1/it
Priority to EP99104667A priority patent/EP0945772A3/en
Priority to US09/280,046 priority patent/US6163017A/en
Publication of ITMI980654A1 publication Critical patent/ITMI980654A1/it
Application granted granted Critical
Publication of IT1298956B1 publication Critical patent/IT1298956B1/it

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D22/00—Control of humidity
    • G05D22/02—Control of humidity characterised by the use of electric means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/26—Automatic controllers electric in which the output signal is a pulse-train
    • G05B11/28—Automatic controllers electric in which the output signal is a pulse-train using pulse-height modulation; using pulse-width modulation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • 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
    • 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
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
    • F25D2317/04131—Control means therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electric Ovens (AREA)
  • Control Of Non-Electrical Variables (AREA)
IT98MI000654A 1998-03-27 1998-03-27 Dispositivo per il controllo con elevata precisione di una grandezza fisica quale la temperatura o l'umidita' entro un elettrodomestico IT1298956B1 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT98MI000654A IT1298956B1 (it) 1998-03-27 1998-03-27 Dispositivo per il controllo con elevata precisione di una grandezza fisica quale la temperatura o l'umidita' entro un elettrodomestico
EP99104667A EP0945772A3 (en) 1998-03-27 1999-03-09 Device for the high-precision control of a physical quantity such as the temperature or humidity in a household electrical appliance
US09/280,046 US6163017A (en) 1998-03-27 1999-03-26 Device for the high-precision control of a physical quantity such as the temperature or humidity in a household electrical appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT98MI000654A IT1298956B1 (it) 1998-03-27 1998-03-27 Dispositivo per il controllo con elevata precisione di una grandezza fisica quale la temperatura o l'umidita' entro un elettrodomestico

Publications (2)

Publication Number Publication Date
ITMI980654A1 ITMI980654A1 (it) 1999-09-27
IT1298956B1 true IT1298956B1 (it) 2000-02-07

Family

ID=11379543

Family Applications (1)

Application Number Title Priority Date Filing Date
IT98MI000654A IT1298956B1 (it) 1998-03-27 1998-03-27 Dispositivo per il controllo con elevata precisione di una grandezza fisica quale la temperatura o l'umidita' entro un elettrodomestico

Country Status (3)

Country Link
US (1) US6163017A (it)
EP (1) EP0945772A3 (it)
IT (1) IT1298956B1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6303911B1 (en) * 2000-01-12 2001-10-16 Honeywell International Inc. Device and method for controlling the temperature of a thin film resistive heater
US6904761B2 (en) * 2003-03-11 2005-06-14 General Electric Company Method and apparatus to control humidity in a refrigerator
US8426777B2 (en) 2010-05-19 2013-04-23 Whirlpool Corporation Oven control utilizing data-driven logic
CN107479395A (zh) * 2017-09-11 2017-12-15 广东美的制冷设备有限公司 智能家居设备的控制方法及装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149224A (en) * 1961-11-24 1964-09-15 Monsanto Co Heater control circuit
US3732732A (en) * 1966-11-03 1973-05-15 Owens Corning Fiberglass Corp Temperature measuring method
US3553429A (en) * 1968-11-18 1971-01-05 Eastman Kodak Co Temperature control circuit
US3586830A (en) * 1968-11-29 1971-06-22 Coltron Ind Logical control for discretely metering energy to thermal systems incorporating apparatus and methods for simulating time related temperatures
US4097723A (en) * 1971-06-09 1978-06-27 Leitner Frank W Thermal systems incorporating apparatus and methods for simulating time related temperatures
DE2209770C3 (de) * 1972-03-01 1980-07-24 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Umwandlung des exponentiell mit einer Meßgröße verknüpften Widerstandswerts eines Widerstandsgebers in eine der Meßgröße proportionale Frequenz einer elektrischen Schwingung
US3988577A (en) * 1972-04-14 1976-10-26 Automated Energy Systems, Inc. Automated energy systems with computer compatibility
US3872728A (en) * 1972-10-10 1975-03-25 Michael F Joyce Electronic temperature measuring instrument
US4013872A (en) * 1975-05-02 1977-03-22 Mobil Oil Corporation Temperature control device
US4159648A (en) * 1977-11-03 1979-07-03 Electromedics, Inc. Electrical circuit board with directly attached display unit and method of assembling same
US4197581A (en) * 1978-04-12 1980-04-08 General Electric Company Control system for and method of controlling a cooking appliance
US4858119A (en) * 1981-05-15 1989-08-15 The Frymaster Corporation Intelligent cooking appliance
US4720623A (en) * 1986-05-01 1988-01-19 E. I. Du Pont De Nemours And Company Power control device for a resistance heater in an oven
DE3808475A1 (de) * 1988-03-14 1989-10-19 Friedhelm Meyer Verfahren und vorrichtung zum messen einer temperatur
US5086806A (en) * 1991-04-05 1992-02-11 Boyd Coffee Company Automatic flow control system and flood protector

Also Published As

Publication number Publication date
EP0945772A3 (en) 1999-11-17
ITMI980654A1 (it) 1999-09-27
US6163017A (en) 2000-12-19
EP0945772A2 (en) 1999-09-29

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Legal Events

Date Code Title Description
0001 Granted