Samsung Electronics Co., Ltd.

Dong-Kue Lee

Je-Myoung Moon

Jong-Youb Kim

Il-Yong Cho

Joong-Ki Moon

Jong-Hun Ha

Disclosed herein is an air conditioning unit and method of operating the same. The air conditioning unit has a power level control unit () for controlling the level of power supplied to a motor () of a compressor. The power level control unit () is comprised of a first supplying unit () for supplying first level power to the compressor motor (), and a second supplying unit () for supplying second level power to the compressor motor (). If an operation cycle of the compressor corresponds to a loading operation, the power level control unit () supplies first level power for compressing a cooling agent through the first supplying unit (). Further, if an operation cycle of the compressor corresponds to an unloading operation, the power level control unit () supplies second level power less than the first level power through the second supplying unit (). Therefore, the present invention is advantageous in that it can reduce undesirable power consumption caused by the compressor motor during the unloading operation.

Air conditioning unit and method of operating the same

An air conditioning apparatus and control method thereof includes an inverter-type compressor and a two-stage variable-capacity compressor connected in parallel with their respective capacities controlled according to indoor air conditioning loads. Thus, the present invention is cost-competitive due to a capacity of the inverter-type compressor being lower than that of the two-stage variable-capacity compressor.

Air conditioning apparatus and control method thereof

An air conditioning apparatus and control method thereof is provided, in which a pulse width modulation compressor and a two-stage variable-capacity compressor are connected in parallel with each other to control capacities of the two compressors according to indoor air conditioning loads. The air conditioning apparatus is cost-competitive because a capacity supplied by the pulse width modulation compressor is relatively low in cost, and the cost required for manufacturing the compressor is reduced in proportion to the reduced capacity. Accordingly, with the air-conditioning apparatus an effect is obtainable in which a variable-capacity compressor with small capacity and a two-stage variable-capacity compressor with large capacity are controlled as if a large-scale variable-capacity compressor with a same capacity as a total capacity of the two compressors were linearly controlled.

An air conditioning apparatus and control method thereof is provided, in which two-stage variable-capacity compressors are connected in parallel with each other to control capacities of the two stage variable-capacity compressors according to indoor air conditioning loads. A pair of two-stage variable-capacity compressors are used in the air conditioning apparatus to be cost competitive and can obtain an effect in which the pair of two-stage variable-capacity compressors are controlled as if a large-scale variable-capacity compressor with a capacity the same as a total capacity of the two compressors were linearly controlled.

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Pyungtak, South Korea

Dong-Kue Lee