近几年,进口的日立牌冰箱机组损坏较多,经检测,均为启动线圈断路,笔者在实践中总结了损坏的原因并加以改进,已修复的数十台冰箱至今未出现此类故障。损坏原因:该机组的定子线圈特殊,其转子的上端,线圈呈包围状,中间用绝缘塑料隔开,在拆卸任一台时、都发现启动线圈烧坏并熔入绝缘塑料中;而转子的下端,定子线圈呈喇叭状,却无任何烧坏的迹象。显然,原因是转子与呈包围状线圈之 In recent years, Hitachi imported refrigerators more damage to the unit, after testing, are starting coil open circuit, the author summed up in practice the reasons for damage and to improve, dozens of refrigerators have been repaired so far no such failure. Reason for damage: The unit stator coil special, the rotor’s upper end, the coil was surrounded by the middle with insulating plastic separated, in the demolition of any one, have found that the starting coil burned and fused into the insulating plastic; and the rotor The lower end, the stator coil was horn-shaped, but no signs of any burnout. Obviously, the reason is that the rotor is surrounded by a coil