(19)
(11) EP 2 530 400 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.11.2014 Bulletin 2014/46

(43) Date of publication A2:
05.12.2012 Bulletin 2012/49

(21) Application number: 12170259.1

(22) Date of filing: 31.05.2012
(51) International Patent Classification (IPC): 
F24H 4/04(2006.01)
F24H 9/14(2006.01)
 F24H 9/02(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 31.05.2011 JP 2011121359

(71) Applicant: Panasonic Corporation
Osaka 571-8501 (JP)

(72) Inventors:
  • Nakatani, Kazuhito
    Chuoku, OSAKA, 540-6207 (JP)
  • Mihara, Hiroshi
    Chuoku, OSAKA, 540-6207 (JP)
  • Nishihara, Yoshikazu
    Chuoku, OSAKA, 540-6207 (JP)
  • Fukunaga, Toshikatsu
    Chuoku, OSAKA, 540-6207 (JP)

(74) Representative: Eisenführ Speiser 
Patentanwälte Rechtsanwälte PartGmbB Postfach 31 02 60
80102 München
80102 München (DE)

   


(54) Heat pump hydronic heater


(57) A heat pump hydronic heater of the present invention includes a refrigerant circuit 8, a circulation pump 16 which circulates a heating medium heated by a water refrigerant heat exchanger to an external radiator, and a cistern 17 in which the heating medium is stored, and the circulation pump 16 is disposed below the cistern 17. A pipe which connects the cistern and the circulation pump to each other can be a short pipe, bending times can be reduced and thus, power of the circulation pump 16 can be reduced and as a result, power consumption can be reduced, energy can be saved and efficiency can be enhanced. Noise and vibration can be reduced, maintenance performance is excellent and the heat pump hydronic heater can be designed compact.







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Search report