(19)
(11) EP 2 530 399 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.04.2014 Bulletin 2014/17

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

(21) Application number: 12153145.3

(22) Date of filing: 30.01.2012
(51) International Patent Classification (IPC): 
F24H 4/04(2006.01)
F24H 9/06(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 2011122003

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

(72) Inventors:
  • Fukunaga, Toshikatsu
    Osaka 540-6207 (JP)
  • Aoyama, Shigeo
    Chuo-ku, Osaka 540-6207 (JP)
  • Isayama, Yasuhiko
    Chuo-ku, 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) The heat pump hydronic heater of the invention includes a heat pump circuit and a hot water tank circuit, the heat pump circuit and the hot water tank circuit are accommodated in one casing 50, and a hermetic expansion tank 37 is connected to a hot water tank 7 and the heat pump hydronic heater can absorb expansion of water in a circulation path when hot water in a hot water tank 7 is circulated through heat a floor or supply hot water.







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