Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JPH0545028
Kind Code:
A
Abstract:
PURPOSE: To perform a positive defrosting without being influenced by noise.
CONSTITUTION: An evaporator sensor temperature Tc in an outdoor heat exchanger 30 is detected by an evaporating temperature sensor 34 and compared with a predetermined defrosting starting set temperature Ts and a difference between both temperature is calculated. A rate of variation per unit time of the detected evaporator sensor temperature Tc is calculated. The defrosting starting condition is detected by a fuzzy control in which the temperature difference and the variation rate are applied as a former part and the defrosting starting output is applied as a latter part.
Inventors:
YAMAGISHI KATSUAKI
YAMAGUCHI KOICHI
SUZUKI KAZUO
YAMAGUCHI KOICHI
SUZUKI KAZUO
Application Number:
JP19946791A
Publication Date:
February 23, 1993
Filing Date:
August 08, 1991
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F24F11/02; F25B47/02; (IPC1-7): F24F11/02; F25B47/02
Attorney, Agent or Firm:
Hidekazu Miyoshi (4 outside)
Next Patent: COOLING DEVICE OF AUTOMATIC VENDING MACHINE