FR2112468A1 - Refrigerator/freezer controller - with two-level electronic temp control action - Google Patents

Refrigerator/freezer controller - with two-level electronic temp control action

Info

Publication number
FR2112468A1
FR2112468A1 FR7139402A FR7139402A FR2112468A1 FR 2112468 A1 FR2112468 A1 FR 2112468A1 FR 7139402 A FR7139402 A FR 7139402A FR 7139402 A FR7139402 A FR 7139402A FR 2112468 A1 FR2112468 A1 FR 2112468A1
Authority
FR
France
Prior art keywords
temp
sensors
bridge
refrigerator
control action
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
FR7139402A
Other languages
French (fr)
Other versions
FR2112468B1 (en
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2112468A1 publication Critical patent/FR2112468A1/en
Application granted granted Critical
Publication of FR2112468B1 publication Critical patent/FR2112468B1/fr
Granted 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits
    • 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
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • 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
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
    • G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
    • 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
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Defrosting Systems (AREA)

Abstract

dual function electronic control system for refrigerators or freezers, partic for refrigerators with two temp. regimes and automatic defrosting, of the type using a bridge circuit with a temp variable resistances acting as temp sensors, controlling a switching amplifier, with the improvement whereby at least two separate temp. sensors are used in their own arm of the bridge, the circuit of which is so designed that according to the functional state of the switching amplifier these sensors alternately establish in co-operation with the fixed resistances in the other part of the bridge, a comparison between the design and actual values of the temp. and are simultaneously controlled in such a way that the temps in the compartments to be cooled are only monitored when the compressor motor is operating and that when the latter is at rest, only the temp sensor monitoring the defrosting process is effective.
FR7139402A 1970-11-05 1971-11-03 Refrigerator/freezer controller - with two-level electronic temp control action Granted FR2112468A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702054412 DE2054412A1 (en) 1970-11-05 1970-11-05 Electronic two-point controller for freezers and refrigerators

Publications (2)

Publication Number Publication Date
FR2112468A1 true FR2112468A1 (en) 1972-06-16
FR2112468B1 FR2112468B1 (en) 1973-06-29

Family

ID=5787202

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7139402A Granted FR2112468A1 (en) 1970-11-05 1971-11-03 Refrigerator/freezer controller - with two-level electronic temp control action

Country Status (4)

Country Link
CH (1) CH532762A (en)
DE (1) DE2054412A1 (en)
FR (1) FR2112468A1 (en)
IT (1) IT940445B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348451A1 (en) * 1976-04-13 1977-11-10 Bosch Siemens Hausgeraete REFRIGERATOR, IN PARTICULAR HOUSEHOLD OR SIMILAR REFRIGERATOR, WITH IMPROVED TEMPERATURE AND DEFROST REGULATION
FR2529652A1 (en) * 1982-06-30 1984-01-06 Tokyo Shibaura Electric Co REFRIGERATOR CONTROL DEVICE
EP0483908A1 (en) * 1990-10-30 1992-05-06 Whirlpool Europe B.V. Device for controlling the operation of a refrigeration appliance, such as a domestic refrigerator, a freezer or the like
FR3134716A1 (en) 2022-04-26 2023-10-27 Capsum Solid cosmetic makeup composition comprising at least one cavity

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1193709B (en) * 1980-07-31 1988-08-24 Indesit INTERNAL TEMPERATURE REGULATION DEVICE FOR REFRIGERATION APPLIANCES

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348451A1 (en) * 1976-04-13 1977-11-10 Bosch Siemens Hausgeraete REFRIGERATOR, IN PARTICULAR HOUSEHOLD OR SIMILAR REFRIGERATOR, WITH IMPROVED TEMPERATURE AND DEFROST REGULATION
FR2529652A1 (en) * 1982-06-30 1984-01-06 Tokyo Shibaura Electric Co REFRIGERATOR CONTROL DEVICE
EP0483908A1 (en) * 1990-10-30 1992-05-06 Whirlpool Europe B.V. Device for controlling the operation of a refrigeration appliance, such as a domestic refrigerator, a freezer or the like
FR3134716A1 (en) 2022-04-26 2023-10-27 Capsum Solid cosmetic makeup composition comprising at least one cavity
WO2023209015A1 (en) 2022-04-26 2023-11-02 Capsum Solid cosmetic make-up composition comprising at least one cavity

Also Published As

Publication number Publication date
IT940445B (en) 1973-02-10
FR2112468B1 (en) 1973-06-29
DE2054412A1 (en) 1972-05-10
CH532762A (en) 1973-01-15

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Legal Events

Date Code Title Description
ST Notification of lapse