Refrigerator defrost control apparatus and method

Details Refrigerator defrost control apparatus and method Refrigerator defrost control apparatus and method

1995-03-23

1996-10-15

Tanner, Harry B.

Refrigeration

Automatic control

Preventing, removing or handling atmospheric condensate

62155, 62156, F25D 1100

Patent

active

055642861

ABSTRACT:
A defrost control apparatus and method for controlling the defrosting of a cooling coil of a refrigerator by estimating a postpone defrost time to postpone the defrosting of the cooling coil in accordance with fuzzy logic reasoning. The fuzzy logic reasoning uses the total number of times a door on the refrigerator is opened and an outside temperature value related to the outside temperature as input variables. The fuzzy logic estimate is produced at predetermined time intervals after a compressor of the refrigerator has operated a predetermined time since the last defrosting. The defrost control apparatus counts the total refrigerator operating time period after the compressor has operated the predetermined time. The defrost control apparatus starts to defrost the cooling coil when the total refrigerator operating time period exceeds the postpone defrost time.

REFERENCES:
patent: 4297852 (1981-11-01), Brooks
patent: 4481785 (1984-11-01), Tershak et al.
patent: 5315835 (1994-05-01), Park

Affiliated with

Also associated with

Rating

Refrigerator defrost control apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Refrigerator defrost control apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refrigerator defrost control apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1237663