(19)
(11) EP 1 826 510 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.06.2011 Bulletin 2011/24

(43) Date of publication A2:
29.08.2007 Bulletin 2007/35

(21) Application number: 07003911.0

(22) Date of filing: 26.02.2007
(51) International Patent Classification (IPC): 
F25B 29/00(2006.01)
F25B 6/04(2006.01)
F25B 49/02(2006.01)
F25B 6/02(2006.01)
F25B 9/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 27.02.2006 JP 2006050549

(71) Applicant: SANYO ELECTRIC CO., LTD.
Moriguchi-shi, Osaka (JP)

(72) Inventors:
  • Otake, Masahisa
    Ora-gun,Gunma, 370-0615 (JP)
  • Sato, Koji
    Ora-gun, Gunma, 370-0523 (JP)
  • Mukaiyama, Hiroshi
    Ora-gun, Gunma, 370-0725 (JP)

(74) Representative: Glawe, Delfs, Moll 
Patent- und Rechtsanwälte Postfach 26 01 62
80058 München
80058 München (DE)

   


(54) Refrigeration cycle device


(57) In a refrigeration cycle device (2) in which heat generated by heat absorption of an evaporator (16) is used for heating in a condenser (11), a disadvantage that a cooling capacity of the evaporator (16) deteriorates owing to shortage or drop of an amount of the heat to be rejected from the condenser (11) is securely avoided and a cooling function is maintained. In the refrigeration cycle device which is provided with a refrigerant circuit including a compressor (10), a condenser (11), an expansion valve (14) and an evaporator (16) and which exhibits a heating function by the heat rejected from the condenser (11) and which exhibits the cooling function by the heat absorption of the evaporator (16), an operation to secure a predetermined amount of the heat to be rejected from the condenser (11) is executed in order to maintain the cooling function of the evaporator (16) based on an index capable of grasping the amount of the heat to be rejected from the condenser (11).







Search report