US 2026/0053328 A1 · DISHWASHER INCLUDING HEAT PUMP APPARATUS

Abstract

A dishwasher includes a tub defining a washing space and accommodating dishes and a heat pump apparatus configured to heat wash water introduced into the tub. The heat pump apparatus includes a compressor configured to compress refrigerant, a first heat exchanger configured to heat water introduced into the tub, a first expansion valve configured to expand refrigerant, a second heat exchanger to which refrigerant is introduced from the first expansion valve, a second expansion valve disposed in parallel with the first expansion valve, a third heat exchanger disposed in parallel with the second heat exchanger, and a four way valve connected with the compressor, the first heat exchanger, the second heat exchanger, and the third heat exchanger and configured to change a flow path of the refrigerant.

Claims18

Dependent claims

A dishwasher comprising:

a tub defining a washing space;
a base provided under the tub;
and
a heat pump apparatus configured to heat water introduced into the tub,
wherein the heat pump apparatus comprises:
a compressor,
an expansion valve,
an air flow part disposed in the base, the air flow part comprising two heat exchangers, wherein one of the two heat exchangers is configured to receive refrigerant from the expansion valve, and the other of the two heat exchangers is disposed in parallel with the one of the two heat exchangers,
a first duct having an inlet connected with the tub and introducing air inside the tub to the air flow part,
a second duct having an outlet connected with the tub, and
a blowing fan connected with the first duct and configured to forcibly blow air toward the air flow part.

8 more elements

Dependencies are inferred from the claim text.

Dishwasher including heat pump apparatus

Life of this patent

Dishwasher including heat pump apparatus

Life of this patent

Abstract

Claims18