GB948223A - Refrigerator - Google Patents

Refrigerator

Info

Publication number
GB948223A
GB948223A GB1228262A GB1228262A GB948223A GB 948223 A GB948223 A GB 948223A GB 1228262 A GB1228262 A GB 1228262A GB 1228262 A GB1228262 A GB 1228262A GB 948223 A GB948223 A GB 948223A
Authority
GB
United Kingdom
Prior art keywords
switch
heater
energized
contact
motor
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
Application number
GB1228262A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation 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
Priority claimed from US105029A external-priority patent/US3105364A/en
Priority claimed from US113245A external-priority patent/US3110158A/en
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB948223A publication Critical patent/GB948223A/en
Expired 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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D2317/06—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 with forced air circulation
    • F25D2317/061—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 with forced air circulation through special compartments
    • 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
    • F25D2317/06—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 with forced air circulation
    • F25D2317/065—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 with forced air circulation characterised by the air return
    • F25D2317/0653—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 with forced air circulation characterised by the air return through the mullion
    • 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
    • F25D2317/06—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 with forced air circulation
    • F25D2317/068—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 with forced air circulation characterised by the fans
    • F25D2317/0683—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 with forced air circulation characterised by the fans the fans not of the axial type
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

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

948,223. Refrigerators; defrosting. GENERAL MOTORS CORPORATION. March 30, 1962 [April 24, 1961; May 29, 1961], No. 12282/62. Heading F4H. In a refrigerator as described in Specification 948,224 when the compressor motor is deenergized and when the storage compartment temperature rises to a predetermined value, the air fan motor is de-energized and a heater is energized to defrost the evaporator. As shown in Fig. 4, the motor 147 of the compressor 145 is connected between supply leads 169 and 155 in series with a fixed contact 157 of a double throw switch 159 which is operated by a fluid motor 161 having a capillary tube 163. The latter includes portions 164 and 166 which are respectively in contact with the liner 38 of the freezer compartment and with the air leaving the storage compartment 32. The other fixed contact 171 is connected to a circuit 191 containing a switch 179 mounted on the rear wall of the storage compartment and a defrost limit switch 175, and a parallel circuit 195 containing a high resistance heater 193 which is wrapped around the portion 164 of the capillary tube 163, the circuits being connected to one end of a defrost heater 177 mounted on the evaporator fins. During normal operating conditions switch 179 is open and switch 175 closed and the switch 159 energizes the compressor motor when the temperature of the air leaving the storage compartment reaches 11‹ F. as sensed by the capillary portion 166 and de-energizes it when the temperature of the liner 38 drops to - 2‹ F. as sensed by portion 164. During idle periods the heater 193 warms the portion 164 to counteract the cooling effect of the liner and to prevent this portion from exercising control over the switch 159 during such periods. The fan motor 92 which is connected between supply lead 169 and the switch 175 is energized continuously during normal operation. When frost builds up on the evaporator the temperature of air supplied to the storage compartment rises and the switch 179, which includes a bimetallic arm 181, closes so that when the movable contact 167 of switch 159 moves to fixed contact 171 the compressor motor is de-energized, the defrost heater 177 is energized and the heater 193 and fan motor 92 are short circuited. The defrost limit switch 175 opens when the temperature of the evaporator reaches 50‹ F., thus de-energizing heater 177 and energizing heater 193 so that the capillary tube portion 166 operates switch 159 to restart the compressor, The fan motor remains inoperative until the switch 175 closes at an evaporator temperature of 22 ‹ F. In an alternative embodiment, the control circuit (Fig. 6) includes a switch 232 controlled by the movement of the valve admitting air to the storage compartment. The circuit also includes a double throw switch having an operating coil 199 and a movable contact 198 which is normally in contact with a fixed contact 196 so that the fan motor 92 is energized continuously and the compressor motor energized under the control of a switch 202 controlled by a fluid motor 161 as before. When defrosting is required the movable contact 238 of switch 232 is moved to contact 242 so that when switch 202 opens, the coil 199 is energized and moves contact 198 to contact 254, thus energizing the defrost heater 177. The defrost limit switch 175 terminates defrosting as before.
GB1228262A 1961-04-24 1962-03-30 Refrigerator Expired GB948223A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US105029A US3105364A (en) 1961-04-24 1961-04-24 Refrigerating apparatus with defrost means
US113245A US3110158A (en) 1961-05-29 1961-05-29 Refrigerating apparatus including defrost means

Publications (1)

Publication Number Publication Date
GB948223A true GB948223A (en) 1964-01-29

Family

ID=26802178

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228262A Expired GB948223A (en) 1961-04-24 1962-03-30 Refrigerator

Country Status (1)

Country Link
GB (1) GB948223A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025182B1 (en) * 1964-05-04 1975-08-21
USRE32384E (en) * 1980-01-30 1987-03-31 Vickers Public Limited Company Marine tether anchoring device
GB2354061A (en) * 1999-09-13 2001-03-14 Ian David Wood Cold storage appliance
US6837068B2 (en) 2001-03-13 2005-01-04 Applied Design And Engineering Limited Airflow management in cold storage appliances
CN112586985A (en) * 2020-12-23 2021-04-02 六安索伊电器制造有限公司 High-efficient freeze-proof prevents beverage machine door that dew seals

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025182B1 (en) * 1964-05-04 1975-08-21
USRE32384E (en) * 1980-01-30 1987-03-31 Vickers Public Limited Company Marine tether anchoring device
GB2354061A (en) * 1999-09-13 2001-03-14 Ian David Wood Cold storage appliance
GB2354061B (en) * 1999-09-13 2001-08-08 Ian David Wood Cold-storage appliance
US6915657B1 (en) 1999-09-13 2005-07-12 Applied Design And Engineering Limited Cold-storage appliance
US6837068B2 (en) 2001-03-13 2005-01-04 Applied Design And Engineering Limited Airflow management in cold storage appliances
US6901767B2 (en) 2001-03-13 2005-06-07 Applied Design And Engineering Limited Use of heat in cold storage appliances
US6925833B2 (en) 2001-03-13 2005-08-09 Applied Design And Engineering Limited Airflow management in cold storage appliances
US6941766B2 (en) 2001-03-13 2005-09-13 Applied Design And Engineering Limited Airflow management in cold storage appliances
EP1726896A1 (en) * 2001-03-13 2006-11-29 Applied Design and Engineering Limited Airflow management in cold storage appliances
US7159415B2 (en) 2001-03-13 2007-01-09 Applied Design And Engineering Limited Drawer storage
CN112586985A (en) * 2020-12-23 2021-04-02 六安索伊电器制造有限公司 High-efficient freeze-proof prevents beverage machine door that dew seals

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