公开(公告)号：EP4141343A1

公开(公告)日：2023-03-01

申请号：EP21793723.4

申请日：2021-02-04

申请人： Qingdao Haier Air-Conditioning Electronic Co., Ltd ,  Haier Smart Home Co., Ltd.

发明人： ZHANG, Baoku ,  HAN, Weitao ,  HAN, Yefei ,  MAO, Shoubo ,  WANG, Chungang

IPC分类号： F24H4/02 ,  F24H9/20 ,  F24D15/04

摘要： A water heating unit. In a water heating process, a flow ratio of hot water, entering a heating host (1), of a pressure bearing water tank (2) and an insulation water tank (3) is adjusted by means of a water mixing valve (9), so that adjusted water is heated by the heating host (1) once, and then directly enters the insulation water tank (3) to always guarantee that the using requirements of a user are met; moreover, in a dynamic adjusting process of the water mixing valve (9), water which flows out of a water outlet of the water heating host (1) but does not meet the temperature requirements can reflow to the pressure bearing water tank (2) by means of a valve (8) connected to the water outlet of the heating host (1), so that water which does not meet the temperature requirements is prevented from flowing into the insulation water tank (3).