NL145972B - DEFROST CONTROL FOR AN ELECTRICAL COOLING DEVICE. - Google Patents

DEFROST CONTROL FOR AN ELECTRICAL COOLING DEVICE.

Info

Publication number
NL145972B
NL145972B NL686817900A NL6817900A NL145972B NL 145972 B NL145972 B NL 145972B NL 686817900 A NL686817900 A NL 686817900A NL 6817900 A NL6817900 A NL 6817900A NL 145972 B NL145972 B NL 145972B
Authority
NL
Netherlands
Prior art keywords
cooling device
defrost control
electrical cooling
electrical
defrost
Prior art date
Application number
NL686817900A
Other languages
Dutch (nl)
Other versions
NL6817900A (en
Original Assignee
Matsushita Electronics Corp
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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Publication of NL6817900A publication Critical patent/NL6817900A/xx
Publication of NL145972B publication Critical patent/NL145972B/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
    • F25D21/002—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
    • G05D23/1906—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
    • 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
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/122—Sensors measuring the inside temperature of freezer compartments

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)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
NL686817900A 1967-12-14 1968-12-13 DEFROST CONTROL FOR AN ELECTRICAL COOLING DEVICE. NL145972B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8173767 1967-12-14

Publications (2)

Publication Number Publication Date
NL6817900A NL6817900A (en) 1969-06-17
NL145972B true NL145972B (en) 1975-05-15

Family

ID=13754728

Family Applications (1)

Application Number Title Priority Date Filing Date
NL686817900A NL145972B (en) 1967-12-14 1968-12-13 DEFROST CONTROL FOR AN ELECTRICAL COOLING DEVICE.

Country Status (6)

Country Link
US (1) US3548609A (en)
ES (1) ES361341A1 (en)
FR (1) FR1594481A (en)
GB (1) GB1194760A (en)
NL (1) NL145972B (en)
SE (1) SE343131B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481785A (en) * 1982-07-28 1984-11-13 Whirlpool Corporation Adaptive defrost control system for a refrigerator
US4528821A (en) * 1982-07-28 1985-07-16 Whirlpool Corporation Adaptive demand defrost control for a refrigerator
US5737232A (en) * 1997-02-04 1998-04-07 Maytag Corporation Power supply arrangement for a control circuit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248892A (en) * 1963-02-25 1966-05-03 Texas Instruments Inc Refrigeration control regulating temperature and frost build-up
US3203195A (en) * 1963-05-27 1965-08-31 Gen Motors Corp Refrigerating apparatus
US3222882A (en) * 1964-01-17 1965-12-14 Texas Instruments Inc Refrigeration temperature and frost control
US3363429A (en) * 1966-03-11 1968-01-16 Motorola Inc Temperature control circuit for refrigeration system
US3460352A (en) * 1967-07-31 1969-08-12 Ranco Inc Defrost control

Also Published As

Publication number Publication date
SE343131B (en) 1972-02-28
ES361341A1 (en) 1970-11-16
US3548609A (en) 1970-12-22
DE1814070A1 (en) 1969-07-03
NL6817900A (en) 1969-06-17
FR1594481A (en) 1970-06-01
GB1194760A (en) 1970-06-10

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: MATSUSHITA