[특허]Dual temperature control of refrigerator-freezer

Dual temperature control of refrigerator-freezer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-017/06
출원번호	US-0105493 (1993-08-11)
발명자 / 주소	Weiss John (Amityville NY)
출원인 / 주소	Micro Weiss Electronics, Inc. (West Babylon NY 02)
인용정보	피인용 횟수 : 61 인용 특허 : 0

초록 ▼

A dual compartment single evaporator refrigerator and temperature control apparatus that effectively controls two compartment temperatures by making the evaporator fan control independent of the compressor cycle. The compressor cycle is initiated by the fresh food compartment temperature, runs for a predetermined minimum time, and is terminated by the freezer temperature. The evaporator fan runs with the compressor and is terminated by the freezer control temperature. A small portion of the evaporator air circulation flows through the fresh food compartment and compartment temperatures are balanced according to the freezer temperature settings during the post-compressor cycle fan control. The temperature control set points to operate the compressor and fan are based on algorithms that compensate the control for the combination of freezer and fresh food temperature settings.

대표청구항 ▼

A refrigerator/freezer having a fresh food compartment (11) and a freezer compartment (12) separated by a first partition (13) and each having a door on a front side of said refrigerator/freezer, a compressor, condenser and a heat-removing fan (25) located below said compartments, and a single evaporator (22), a single defrost heater (26) and a single evaporator fan (18) located behind a second partition in the rear of at least said freezer compartment, said second partition having an outlet for discharging all chilled air propelled by said evaporator fan (18) into a top portion of said freezer compartment, a return path being provided for air supply to said evaporator and thence to said evaporator fan through respective vents (17, 21) of said compartments, and wherein: a first port (14) in said first partition (13) and of constant aperture for passage of air from said freezer compartment to said fresh food compartment is located near said outlet of said evaporator fan, said top portion of said freezer compartment being empty and of a configuration for maintaining a steady proportion, of all air propelled by said evaporator fan through said outlet, which thereafter flows through said first port; at least one other port (15, 16) is provided in said first partition (13), below said top empty portion of said freezer compartment, for passage of air from said freezer compartment to said fresh food compartment; a first temperature sensor (19) is situated in an upper portion of said fresh food compartment below said first port for measuring the air temperature of said fresh food compartment; a second temperature sensor (20) is situated in said freezer compartment to measure the air temperature of said freezer compartment; control means, including manually operable means for establishing temperature settings respectively for air in said freezer and fresh food compartments, from which there are automatically calculated and stored by calculation means, a fresh food compartment temperature control value derived in a first predetermined manner from said respective fresh food compartment and freezer temperature settings and a freezer compartment temperature control value derived in a second predetermined way from said respective fresh food compartment and freezer compartment temperature settings, and means for starting said compressor and said evaporator fan when said fresh food compartment air temperature exceeds said fresh food compartment temperature control value, means for thereafter maintaining in operation both said compressor and said evaporator fan for a predetermined minimum time which is more than 20 minutes and less than 40 minutes and means for thereafter determining the respective stopping times of said compressor and of said evaporator fan in accordance with the following principles: (A) if the freezer air temperature is less than said freezer compartment temperature control value, both the compressor and the evaporator fan operations are stopped; (B) if the freezer air temperature is equal to or above said freezer compartment temperature control value, the compressor is kept operating if and until the freezer air temperature reaches said freezer compartment temperature control value and then stopping compressor operation, while said evaporator fan is kept operating if and until said fan has operated, since compressor stop, for more than a predetermined percentage of the duration of the last previous compressor operation, said predetermined percentage being greater than 8% and less than 12%.

이 특허를 인용한 특허 (61)

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Wetekamp, Robert L.; Van Meter, Kyle B.; Tarrant, Alan G.; Schuchart, Ryan D.; Oliveira, Mauro M.; Miller, Alvin V.; Koppenhaver, Brent A.; Franken, Carl J.; Ferragut, II, Nelson J.; Coulter, Tim L.; Berardi, Greg; Anell, Thomas Carl, Insulated ice compartment for bottom mount refrigerator with temperature control system.
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Flessner Stephen M., Low temperature air convection cooling/freezing apparatus.
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Schechter, Harry J.; MacDonald, Jeremy; Deng, Diane; Gilpin, Kyle, Low-power user interface device for environmental monitoring system.
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Schechter, Harry J.; Macdonald, Jeremy; Deng, Diane; Gilpin, Kyle, Low-power user interface device for environmental monitoring system.
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Robert Keith Hollenbeck, Method and apparatus for adjusting temperature using air flow.
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Feng, Junhong; Zhou, Xiaotian; Zhu, Qiwu; Zhu, Weizhong, Method for defrost control of a refrigerator and refrigerator which uses this method.
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Schmid, Eugen, Method of operating a refrigerator unit and/or freezer unit as well as a refrigerator unit and/or freezer unit operated using such a method.
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Antonenko Valery V. ; Kulikov Nicolay V., Methods for parallel synthesis of organic compounds.
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Bessler Warren Frank, Refrigeration system with independent compartment temperature control.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Dual temperature control of refrigerator-freezer 원문보기

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Dual temperature control of refrigerator-freezer 원문보기

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이 특허를 인용한 특허 (61)

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