Separate-type air conditioner

• US 6,601,400 B2
• Filed: 07/17/2002
• Issued: 08/05/2003
• Est. Priority Date: 06/19/1998
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Tabata, Daisuke, Takeda, Yuji, Nishizuka, Toshiharu
• Primary Examiner(s): Tanner, Harry B.
• Application Number:
  US10/196,366
• Publication Number:
  US 20020170306A1
• Time in Patent Office: 384 Days
• Field of Search: 621/26, 621/27, 621/29, 621/30, 622/30, 622/281, 622/283, 622/284, 622/285, 621/57, 621/58, 622/31, 622/29, 622/08, 622/09
• US Class Current: 62/230
• CPC Class Codes: F04B 2203/0202 Voltage
• CPC Class Codes: F04B 2203/0402 Voltage
• CPC Class Codes: F24F 1/06 Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
• CPC Class Codes: F24F 1/40 Vibration or noise prevention at outdoor units for outdoor units compressors F24F1/12
• CPC Class Codes: F24F 11/46 Improving electric energy efficiency or saving

Abstract

A separate-type air conditioner that can reduce the effect of voltage fluctuations in a commercial power supply (12) on a compressor (11), reduce material costs while maintaining vibrations of an outdoor unit (2) at low levels, and improve working efficiency during an assembly operation. The outdoor unit (2) includes a voltage correction circuit (14) to keep an output voltage to the compressor (11) constant (optimum) irrespective of the voltage fluctuations in the commercial power supply (12).

Claims

1. A start control method of an air conditioners wherein a compressor (11) for a refrigerating cycle is started by the step of:

applying to a power supply circuit of said compressor (11) a power supply signal which is set according to a voltage value of a commercial power supply (12) at a start-up time and corrected based on a suspension period of said compressor (11).

2. An air conditioner which is started by applying to a power supply circuit of a compressor (11) a power supply signal which is set according to a voltage value of a commercial power supply (12) at a start-up time, wherein

a voltage correction controller is provided in order for correcting said power supply signal and determining an optimum output voltage to said compressor (11) based on a suspension period of said compressor (11).

3. The air conditioner according to claim 2, wherein shell temperature detection means (38) is provided in order for detecting a shell temperature of the compressor (11) and the voltage correction controller is configured to correct and determine the optimum output voltage to the compressor (11) based on a detection signal from said shell temperature detection means (38).

4. The air conditioner according to claim 2, wherein the voltage correction controller is configured to correct and determine the optimum output voltage to the compressor (11) based on a room air temperature detection signal from room air temperature detection means (39) and an outside air temperature detection signal from outside air temperature detection means (40).

5. A start control method of an air conditioner wherein a compressor (11) for a refrigerating cycle is started by the steps of:

controlling duty of a commercial power supply (12);

converting said duty into a power supply signal according to a voltage value of the commercial power supply (12) at a start-up time; and

applying to a power supply circuit of said compressor (11) a resulting power supply signal with said duty corrected according to a suspension period of said compressor (11).