Registre Brevet WIPO
Numéro d'application JP2021004203
Numéro de publication 2022/168248
Statut Délivré - en vigueur
Date de dépôt 2021-02-05
Date de publication 2022-08-11
  • Kato Tomohiro
  • Xie Yingmei


Provided is an air conditioner that keeps an indoor heat exchanger in a clean state and further carries out air-purification. An air conditioner (100) comprises: a compressor (11); an outdoor heat exchanger (12); an expansion valve (14); an indoor heat exchanger (15); an indoor fan (16); and a control unit that causes the indoor heat exchanger (15) to function as an evaporator and that carries out a process to freeze the indoor heat exchanger (15). The control unit carries out control such that the indoor fan (16) is driven during at least part of the period of the process and the temperature of the indoor heat exchanger (15) exceeds a predetermined value when the temperature is below the freezing point. The predetermined value is a temperature below the freezing point at which gaps between fins of the indoor heat exchanger (15) are not completely blocked with frost.

Classes IPC  ?

  • F24F 11/48 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
  • F24F 110/10 - Temperature