公开(公告)号：US11761697B2

公开(公告)日：2023-09-19

申请号：US17491603

申请日：2021-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyungjoon Kim ,  Junseong Park ,  Daehyoung Kim ,  Yongcheol Sa

IPC: F25B49/02 ,  F25B13/00 ,  F25B31/00 ,  F25B43/02

CPC classification number: F25B49/02 ,  F25B13/00 ,  F25B31/004 ,  F25B43/02 ,  F25B2313/0231 ,  F25B2313/0233 ,  F25B2313/02741

Abstract: A multi-air conditioner for heating/cooling operations, including at least one indoor unit for heating/cooling operations including an indoor heat exchanger; and an outdoor unit for heating/cooling operations including a compressor, an outdoor heat exchanger, and a switching unit configured to be disposed in a discharge side of the compressor to switch a flow of refrigerant. The outdoor unit includes a receiver that selectively stores refrigerant or oil according to a cooling or heating operation mode and provides the stored refrigerant or oil to the compressor. Accordingly, in the accumulator of the multi-air conditioner using the receiver, the receiver which is not used in the heating mode may be converted and used for oil storage, thereby preventing oil burnout without adding structure.

公开(公告)号：US11499727B2

公开(公告)日：2022-11-15

申请号：US16738289

申请日：2020-01-09

Applicant: LG Electronics Inc.

Inventor： Donghwi Kim ,  Hyungjoon Kim ,  Junseong Park ,  Yongcheol Sa

IPC: F24F1/16 ,  F28F27/02 ,  F25B41/40 ,  F24F13/30 ,  F24F1/0063 ,  F25B13/00 ,  F25B41/26 ,  F25B41/31 ,  F25B41/34

Abstract: An air conditioning apparatus includes a heat exchange device that connects an outdoor unit to an indoor unit and that includes a heat exchanger configured to perform heat exchange between refrigerant and water. The heat exchanger reduces an amount of refrigerant used to perform a cooling operation or a heating operation.