US 2006/0137381 A1 · Supercooling apparatus of simultaneous cooling and heating type multiple air conditioner

Abstract

Disclosed herein is a supercooling apparatus of a simultaneous cooling and heating type multiple air conditioner. The supercooling apparatus comprises a liquid pipe header connected to an outdoor heat exchanger, a plurality of branch liquid pipes branched from the liquid pipe header and connected to a plurality of indoor heat exchangers, respectively, and a supercooling mechanism mounted at at least one of the branch liquid pipes for cooling refrigerant flowing to the indoor heat exchangers. The liquid refrigerant discharged from the heating-side indoor heat exchangers is supercooled by supercooling heat exchangers, and is then introduced into the cooling-side indoor heat exchangers. Consequently, noise generated from the cooling-side heat exchangers during the simultaneous cooling and heating operation is reduced, and cooling capacity of the multi air conditioner is improved.

Claims20

Dependent claims

A supercooling apparatus of a simultaneous cooling and heating type multiple air conditioner, comprising:

a liquid pipe header connected to an outdoor heat exchanger;
a plurality of branch liquid pipes branched from the liquid pipe header and connected to a plurality of indoor heat exchangers, respectively;
and
a supercooling mechanism mounted at at least one of the branch liquid pipes for cooling refrigerant flowing to the indoor heat exchangers.

1 more element

A supercooling apparatus of a simultaneous cooling and heating type multiple air conditioner, comprising:

an outdoor unit having a compressor, an outdoor heat exchanger, a four-way valve, and an accumulator;
a plurality of indoor units each having an indoor heat exchanger and an electronic expansion valve;
a distributor disposed between the outdoor unit and the indoor units such that high-pressure pipes, low-pressure pipes, and liquid pipes, through which refrigerant flows, extend through the distributor, the liquid pipes including a main liquid pipe and branch liquid pipes;
a liquid pipe header mounted in the distributor, the liquid pipe header being disposed between the main liquid pipe connected to the outdoor heat exchanger and the branch liquid pipes connected to the indoor heat exchangers, respectively;
and
a supercooling mechanism mounted at the branch liquid pipes for cooling refrigerant flowing to the cooling-side indoor heat exchangers from the heating-side indoor heat exchangers when a simultaneous cooling and heating operation is performed.

3 more elements

Dependencies are inferred from the claim text.

Supercooling apparatus of simultaneous cooling and heating type multiple air conditioner

Life of this patent

Supercooling apparatus of simultaneous cooling and heating type multiple air conditioner

Life of this patent

Abstract

Claims20