GB1194317A - Defrosting Controller for Electric Refrigerator. - Google Patents
Defrosting Controller for Electric Refrigerator.Info
- Publication number
- GB1194317A GB1194317A GB9184/69A GB918469A GB1194317A GB 1194317 A GB1194317 A GB 1194317A GB 9184/69 A GB9184/69 A GB 9184/69A GB 918469 A GB918469 A GB 918469A GB 1194317 A GB1194317 A GB 1194317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thyristor
- switch
- conductive
- electric refrigerator
- defrosting
- 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.)
- Expired
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)
Abstract
1,194,317. Defrosting circuits. MATSUSHITA ELECTRONICS CORP. 20 Feb., 1969 [1 March, 1968], No. 9184/69. Heading H2H. [Also in Division F4] A defrosting control for an electric refrigerator has a thyristor 4 shunted by a diode 11 and capacitor 12, also a voltage divider 13, 8 normally maintaining a transistor 5 non-conductive. On closure of a manual or time switch 14, the transistor and thyristor are rendered conductive, the shunting effect of the thyristor across switch 14 maintaining the circuit conductive after switch 14 has opened, until the resistance of a thermistor 7 measuring freezer temperature drops to a low value indicative that the frost has melted. A switch 15 may be closed instantaneously to terminate operation of the circuit. The thyristor 4 may control a heater 3 or the operation of a valve admitting hot gas to the freezer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP43013925A JPS4844421B1 (en) | 1968-03-01 | 1968-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1194317A true GB1194317A (en) | 1970-06-10 |
Family
ID=11846745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9184/69A Expired GB1194317A (en) | 1968-03-01 | 1969-02-20 | Defrosting Controller for Electric Refrigerator. |
Country Status (6)
Country | Link |
---|---|
US (1) | US3578754A (en) |
JP (1) | JPS4844421B1 (en) |
FR (1) | FR2002999A1 (en) |
GB (1) | GB1194317A (en) |
NL (1) | NL148165B (en) |
SE (1) | SE343134B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135143A (en) * | 1983-02-01 | 1984-08-22 | Ti Russell Hobbs Ltd | Electric heating appliance |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5121422U (en) * | 1974-07-29 | 1976-02-17 | ||
US4142374A (en) * | 1977-09-16 | 1979-03-06 | Wylain, Inc. | Demand defrost time clock control circuit |
US4215554A (en) * | 1978-05-30 | 1980-08-05 | General Electric Company | Frost control system |
US4305259A (en) * | 1980-04-03 | 1981-12-15 | Eaton Corporation | Frost sensor employing self-heating thermistor as sensor element |
US5737232A (en) * | 1997-02-04 | 1998-04-07 | Maytag Corporation | Power supply arrangement for a control circuit |
US9583456B2 (en) | 2013-11-22 | 2017-02-28 | Invensas Corporation | Multiple bond via arrays of different wire heights on a same substrate |
CN113970165B (en) * | 2020-07-24 | 2022-11-04 | 广东美的制冷设备有限公司 | Air conditioner, radiation control method and device thereof, and computer readable storage medium |
Family Cites Families (3)
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 |
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 |
-
1968
- 1968-03-01 JP JP43013925A patent/JPS4844421B1/ja active Pending
-
1969
- 1969-02-20 GB GB9184/69A patent/GB1194317A/en not_active Expired
- 1969-02-25 US US802035A patent/US3578754A/en not_active Expired - Lifetime
- 1969-02-27 FR FR6905190A patent/FR2002999A1/fr not_active Withdrawn
- 1969-02-28 SE SE2801/69A patent/SE343134B/xx unknown
- 1969-02-28 NL NL696903192A patent/NL148165B/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135143A (en) * | 1983-02-01 | 1984-08-22 | Ti Russell Hobbs Ltd | Electric heating appliance |
Also Published As
Publication number | Publication date |
---|---|
US3578754A (en) | 1971-05-18 |
DE1909448A1 (en) | 1969-10-09 |
SE343134B (en) | 1972-02-28 |
FR2002999A1 (en) | 1969-11-07 |
NL148165B (en) | 1975-12-15 |
DE1909448B2 (en) | 1975-06-19 |
NL6903192A (en) | 1969-09-03 |
JPS4844421B1 (en) | 1973-12-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1015225A (en) | Improvements in circuits for protecting electrical loads from an adverse condition | |
GB1404210A (en) | Controlling refrigerator defrosting-apparatus | |
GB1194317A (en) | Defrosting Controller for Electric Refrigerator. | |
GB1097662A (en) | Thermoelectric cooling system | |
GB1210992A (en) | Means for starting high resistance motors and start winding protection. | |
GB1420150A (en) | Electrically heated panel | |
GB1198380A (en) | Defrosting Control Circuit for Electric Refrigerator | |
US2558063A (en) | Device for controlling ice formations | |
GB1494217A (en) | Combined refrigerator and freezer | |
GB1184005A (en) | Defrosting Controller for Electric Refrigerator | |
GB1137567A (en) | Improvements in control systems for electrically heated devices | |
GB1362605A (en) | Temperature control circuits | |
GB1096513A (en) | Improvements relating to starting arrangements for single-phase motors | |
GB1203168A (en) | Defrosting controlling circuit means for electric refrigerators | |
GB1096511A (en) | Improvements relating to protective devices for split-phase electric motors | |
GB1202620A (en) | Defrosting controller | |
GB1199612A (en) | Electronic Refrigeration Control System | |
GB1194760A (en) | Defrosting Controller for Electric Refrigerator | |
GB1225444A (en) | ||
GB1225302A (en) | Temperature-Dependent control of the supply of current to an electrical appliance | |
GB1172937A (en) | Electric Refrigerator or like Apparatus | |
GB1183294A (en) | A Starting Circuit for a Single-Phase Asynchronous Motor | |
GB1028763A (en) | Improvements relating to two-temperature refrigerators | |
GB1096512A (en) | Improvements relating to an electric motor for a sealed refrigerating unit | |
GB1286278A (en) | Electric power controlling apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |