公开(公告)号：EP3130869A4

公开(公告)日：2017-12-13

申请号：EP15776954

申请日：2015-03-06

申请人： MITSUBISHI ELECTRIC CORP

发明人： MATSUNAGA NORIAKI ,  OGASAWARA SHINOBU ,  KAGEYAMA TAKEHARU ,  TOYAMA SATORU ,  MIZUNO KOTA ,  HIRAKAWA YUTAKA

IPC分类号： F25B31/02 ,  F04B39/00 ,  F04C18/356 ,  F04C29/00 ,  F04C29/02 ,  F25B1/00 ,  F25B1/04 ,  F25B31/00

CPC分类号： F25D23/065 ,  F04B39/00 ,  F04C18/356 ,  F04C29/00 ,  F04C29/0085 ,  F04C29/02 ,  F04C2210/263 ,  F04C2240/30 ,  F04C2240/40 ,  F25B1/04 ,  F25B13/00 ,  F25B31/002 ,  F25B31/02 ,  F25B2400/07 ,  F25B2400/121 ,  F25B2500/11 ,  F25D23/08 ,  F25D2201/10

摘要： An insulating material that tends not to hydrolyze is used to thereby provide a heat pump apparatus having long-term reliability. An electric motor (6) of a compressor (1) is fixed to a sealed container (10) and includes a stator (6s) around which a winding wire (6w) is wound through intermediation of an insulating material (7), and a rotor (6r) surrounded by the stator (6s). The insulating material (7) is a wholly aromatic liquid crystal polyester (LCP) having a molecular main chain constituted by a monomer including p-hydroxybenzoic acid (PHB) as an essential monomer and a monomer solely including benzene-ring as another monomer via an ester bond. The refrigerating machine oil has a saturated water content of 2% or less at 40 degrees C, a relative humidity of 80%, for 24 Hr. To suppress the explosive decomposition reaction of ethylene-based fluorohydrocarbon, a flame retardant is used to generate chemical species that complement active radicals that cause the decomposition reaction.