(19)
(11) EP 2 626 640 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.03.2014 Bulletin 2014/12

(43) Date of publication A2:
14.08.2013 Bulletin 2013/33

(21) Application number: 13153750.8

(22) Date of filing: 01.02.2013
(51) International Patent Classification (IPC): 
F24D 11/02(2006.01)
F24D 13/02(2006.01)
F25B 49/02(2006.01)
 F24D 19/10(2006.01)
B25J 21/00(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: 07.02.2012 JP 2012023611

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

(72) Inventors:
  • Horiuchi, Toshihiro
    Chuo-ku,, Osaka 540-6207 (JP)
  • Karita,, Tokuro
    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) A heat pump hydronic heater of the present invention comprises a heat pump heat source 1, a water-refrigerant heat exchanger 4 which exchanges heat between circulating water and a refrigerant heated by the heat pump heat source 1, a circulation pump 6 which circulates the circulating water heated by the water-refrigerant heat exchanger 4, a hot water tank 3 in which supply-hot water is retained, hot water supply heat exchanger 5 which exchanges heat between the circulating water and the supply-hot water, and control means, and the control means repeats, a plurality of times, stop of operation and restart of the operation of the heat pump heat source 1, thereby heating the supply-hot water. Therefore, even if the hot water tank 3 having an existing hot water supply heat exchanger is used, it is possible to sufficiently rise a temperature of supply-hot water in the hot water tank 3.







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