Outdoor fan motor and air-conditioning apparatus

Abstract

In a motor, a connected portion between a lead wire and an aluminum wire is provided far from a terminal block, with a leading end of a winding residing on one of cores that is not adjacent to a core that is at a position where the terminal block is provided.

1 . An outdoor fan motor comprising:
 a stator including a plurality of cores in which aluminum wires are used as windings;   a rotor rotatably provided on an inner circumferential side of the stator;   a body outer shell as a resin mold that secures the stator;   a terminal block provided to a bottom portion of the body outer shell and including terminals with which the stator and an external power source are connected to each other; and   lead wires made of copper wires and connecting the terminals of the terminal block to the aluminum wires forming the windings,   wherein a first varnished tube is provided on a side of each of the lead wires that is nearer to the terminal block, and   wherein a water entry preventing member that closes a gap between the first varnished tube and the lead wire is provided between the terminal block and the first varnished tube.   
     
     
         2 . The outdoor fan motor of  claim 1 ,
 wherein the water entry preventing member is
 a resin mold, and 
   wherein the gap is closed by the resin mold.   
     
     
         3 . The outdoor fan motor of  claim 1 ,
 wherein a second varnished tube is
 also provided at a position where the lead wire is in contact with another member. 
   
     
     
         4 . The outdoor fan motor of  claim 3 ,
 wherein the second varnished tube is
 positioned at a predetermined position of the lead wire by adhesive or resin, and wherein the adhesive or the resin serves as the water entry preventing member. 
   
     
     
         5 . The outdoor fan motor of  claim 1 ,
 wherein the first varnished tube provided on the side of the lead wire that is nearer to the terminal block and a portion of the terminal block are embedded in the bottom portion.   
     
     
         6 . The outdoor fan motor of  claim 1 ,
 wherein at least one of a dehumidifying agent and varnish is applied to a connected portion between the lead wire and the aluminum wire and a joined portion between the aluminum wires.   
     
     
         7 . An air-conditioning apparatus comprising:
 a fan provided in a casing and configured to take in air from an air inlet and to blow the air that has passed through a heat exchanger from an air outlet;   the outdoor fan motor of  claim 1  configured to drive the fan; and   a supporting member to which the outdoor fan motor is secured with a securing member.