Separate type air conditioner

• US 7,726,583 B2
• Filed: 09/09/2005
• Issued: 06/01/2010
• Est. Priority Date: 09/14/2004
• Status: Expired due to Fees

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Maekawa, Yasunori
• Primary Examiner(s): Jules; Frantz F.
• Assistant Examiner(s): Comings; Daniel C
• Application Number:
  US11/662,069
• Publication Number:
  US 20070251250A1
• Time in Patent Office: 1,726 Days
• Field of Search: 236/51, 621/32, 621/75, 340/310.11, 361/622, 361627-632
• US Class Current: 236/51
• CPC Class Codes: F24F 1/0003 characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
• 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 11/46 Improving electric energy efficiency or saving
• CPC Class Codes: F24F 11/62 characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
• CPC Class Codes: F24F 11/63 Electronic processing

Abstract

An indoor unit has first, second indoor side terminals to which first, second interconnection lines respectively, are connected at their one end, a third indoor side terminal to which a third interconnection line is connected at its one end, a relay with one end connected to the second indoor side terminal and another end connected to the third indoor side terminal, and a CPU. The outdoor unit has first, second outdoor side terminals as outdoor side power-receiving terminals to which the first, second interconnection lines, respectively, are connected at their other end, a third outdoor side terminal to which the third interconnection line is connected at its other end, and an outdoor control section to which electric power is supplied via the first, third outdoor side terminals. The CPU of the indoor unit turns off the switch part in the standby state.

Claims

1. An air conditioner comprising:

an indoor unit; and

;

an outdoor unit connected to the indoor unit via a plurality of power-supply use interconnection lines and a signal use interconnection line,

the power-supply use interconnection lines including a first interconnection line, a second interconnection line and a third interconnection line,

the indoor unit including first and second indoor side terminals as indoor side power-receiving terminals to which the first and second interconnection lines, respectively, are connected at their one end, a third indoor side terminal to which the third interconnection line is connected at its one end, a fourth indoor side terminal to which the signal use interconnection line is connected at its one end, a switch part with one end connected to the second indoor side terminal and another end connected to the third indoor side terminal, and a control section configured to control the switch part so as to turn off the switch part in a standby state in which the outdoor unit is kept out of operation,

the outdoor unit including first and second outdoor side terminals as outdoor side power-receiving terminals to which the first and second interconnection lines, respectively, are connected at their other end, a third outdoor side terminal to which the third interconnection line is connected at its other end, and a fourth outdoor side terminal to which the signal use interconnection line is connected at its other end, and

electric power being supplied to the indoor unit via the first indoor side terminal and the second indoor side terminal while electric power is supplied to the outdoor unit via the first outdoor side terminal and the third outdoor side terminal.

2. The air conditioner as claimed in claim 1, wherein

the switch part does not consume electric power in an off state.