Air conditioner

• US 4,858,824 A
• Filed: 05/22/1987
• Issued: 08/22/1989
• Est. Priority Date: 05/23/1986
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Sugawara, Sakuo, Hara, Masanori, Matsuda, Kenji, Aoki, Katsuyuki, Ishioka, Hidenori, Umemura, Hiroyuki
• Primary Examiner(s): Wayner, William E.
• Application Number:
  US07/053,351
• Time in Patent Office: 823 Days
• Field of Search: 236/94, 236/78 R, 236/78 D, 165/12
• US Class Current: 236/94
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/61 using timers
• CPC Class Codes: F24F 11/64 using pre-stored data
• CPC Class Codes: F24F 11/74 for controlling air flow rate or air velocity
• CPC Class Codes: F24F 11/86 by controlling compressors within refrigeration or heat pump circuits
• CPC Class Codes: F24F 11/88 Electrical aspects, e.g. circuits
• CPC Class Codes: F24F 2110/10 Temperature
• CPC Class Codes: F24F 2110/12 of the outside air
• CPC Class Codes: F24F 2120/00 Control inputs relating to users or occupants
• CPC Class Codes: G05D 23/1917 using digital means
• CPC Class Codes: G05D 23/24 the sensing element having a resistance varying with temperature, e.g. a thermistor

Abstract

The air conditioner comprises a manual or automatic sensible temperature detection decision means consisting of a temperature detector for detecting room temperature, a hot/cold selector switch, a radiant heat detector, an air current detector and an outdoor temperature detector, an analog/digital signal converter, a microcomputer, a compressor and a blower, which is characterized in that temperature can be set to a thermal sense of a user, room temperature is automatically regulated step by step to coincide with the set temperature, or a sensible temperature is set automatically by the temperature detection and setting function and thus kept constant at all times.

Claims

1. an air conditioner provided with a temperature detector for detecting room temperature, a switch input part having a first input means mannually operable for indicating in a thermal sense when a user feels "hot" and a second input means for indicating in a thermal sense and transmitting a corresponding signal into a signal detection means when a user feels "cold", a signal detecting means comprising set temperature decision means in signal detecting association with both said input means and said temperature detector for deciding and establishing a set temperature according to inputs of said temperature detector and said switch input part, which is characterized in that said set temperature decision means adjusts a first set temperature previously established thereby to a second set temperature lower by a predetermined value with reference to a then room temperature, and thereafter raises said second set temperature somewhat after reaching said second set temperature when said first input means is operated, but adjusts said first set temperature to a third set temperature higher by a predetermined value with reference to a then room temperature and thereafter lowers said third set temperature somewhat after reching said third set temperature, when said second input means is operated.

2. The air conditioner as defined in claim 1, wherein said set temperature decision means adjust said first set temperature to a second set temperature lower by a predetermined value with reference to a then room temperature, continues operation of the air conditioner for a predetermined period of time concurrently, and then operates said air conditioner at said somewhat raised second set temperature thereafter, when said first input means is operated but adjusts said first set temperature to a third set temperature higher by a predetermined value with reference to said then room temperature, continues operation of the said air conditioner for a predetermined period of time concurrently, and then operates said air conditioner at said somewhat lowered third set temperature, when said second input means is operated.