Title:
空気調和機の過熱度制御システム及びその制御方法
Document Type and Number:
Japanese Patent JP3688267
Kind Code:
B2
Abstract:
Disclosed herein is a system and method for controlling the degree of superheat of an air conditioner. The air conditioner includes a compressor controlled in a pulse width modulation manner according to duty control signals, a condenser, an electronic expansion valve and an evaporator so as to form a refrigeration cycle. An entrance temperature sensor situated at the entrance of the evaporator and an exit temperature sensor situated at the exit of the evaporator are connected to a control unit. The control unit calculates the degree of superheat of the evaporator using the difference between mean entrance and exit temperatures of the evaporator sensed by the entrance temperature sensor and the exit temperature sensor for a period of time corresponding to a duty cycle period of the compressor, and regulates the opening of the electronic expansion valve according to the calculated degree of superheat.
Inventors:
Jun Ki Moon
Yang Man Kim
Jun Min Lee
Choi Myung Moon
John Yup Kim
Il Yong Cho
Yang Man Kim
Jun Min Lee
Choi Myung Moon
John Yup Kim
Il Yong Cho
Application Number:
JP2002502361A
Publication Date:
August 24, 2005
Filing Date:
January 05, 2001
Export Citation:
Assignee:
SAMSUNG ELECTRONICS COMPANY,LIMITED
International Classes:
F24F11/02; F04C23/00; F04C27/00; F04C28/26; F24F11/00; F25B41/06; F04C18/02; F25B1/04; F25B5/02; F25B41/04; F25B49/02; (IPC1-7): F24F11/02
Domestic Patent References:
| JP8028983A | ||||
| JP8334094A | ||||
| JP59109423A | ||||
| JP10185285A | ||||
| JP59101138U |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Takashi Watanabe