公开(公告)号：US20230414060A1

公开(公告)日：2023-12-28

申请号：US18212920

申请日：2023-06-22

Applicant: LG ELECTRONICS INC.

Inventor： Seungyoun KIM ,  Hoo Sun LEE ,  Kwangsoo JUNG ,  Byung-Soon KIM ,  Doo Hyun KIM

IPC: A47L15/42 ,  A47L15/22 ,  A47L15/48

CPC classification number: A47L15/4285 ,  A47L15/22 ,  A47L15/483 ,  A47L15/4291

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.