Indoor heat exchanger, indoor machine, outdoor heat exchanger, outdoor machine, and air conditioner

摘要

INDOOR HEAT EXCHANGER, INDOOR MACHINE, OUTDOOR HEAT EXCHANGER, OUTDOOR MACHINE, AND AIR CONDITIONER The object of the invention is to suppress lowering of the cooling and heating capabilities and operation efficiency of air conditioners while suppressing the production costs. The indoor heat exchanger (21) of the indoor machine of an air conditioner includes a front side fin unit (41) that comprises a plurality of fins arranged side by side; a seal material (S1) that is arranged at +Z side end of the front-side fin unit so as to prevent air from flowing out from the +Z side end; and, a plurality of heat transfer tubes (T) that are arranged to penetrate through the fins of the front-side fin unit (41). The heat transfer tubes T include: an inlet heat transfer tube (Ti) that is connected to inlet piping (12) of refrigerant that circulates through a refrigerating cycle when the refrigerating cycle is a heating operation cycle; and a relay heat transfer tube (T2a) through which the refrigerant that is flowed out from the inlet heat transfer tube (T1) flows and that is arranged nearer the seal material (S1) than the inlet heat transfer tube (Ti) is. Selected Drawing 21 Si T2 (T2a) T2 T2 (T2a) A 41 T2(T2-4) 150 42 13,- T2 A - - ------- 51 L2 9---- T 51[ T T2 (T2 -3) T2 T2-T2 (T2 -2) P1 T2 T1 T2(T2-1) T 2 - ---- - 1 -4----- T2 (T2c) -.----- S3 '1 50 ---- T2 ~ T2 (T2 -5) T2 (T2 -6)Z T2 T2 (T2b) T2 (T2b) z YLX HEATING OPERATION