Motor, blower, and vacuum cleaner

Abstract

A motor includes a shaft, a rotor that rotates together with the shaft, and a stator that is disposed to oppose the rotor in a radial direction. The stator includes a ring-shaped stator core that includes a plurality of split stator cores joined to each other in a peripheral direction, a plurality of teeth that extend in a radial direction from the respective split stator cores, and a plurality of coils that are formed by winding a conducting wire around each of the plurality of teeth. Electronic components are disposed below the stator in an axial direction. At least a part of each electronic component overlaps the stator core in the axial direction. Joining portions where the split stator cores arranged in the peripheral direction are joined and the electronic components are displaced in the peripheral direction.

What is claimed is: 
     
         1 . A motor comprising:
 a shaft that is disposed along a central axis extending vertically and rotates around the central axis;   a rotor that is secured to the shaft and rotates together with the shaft; and   a stator that is disposed to oppose the rotor in a radial direction,   wherein the stator includes   a ring-shaped stator core that includes a plurality of split stator cores joined to each other in a peripheral direction,   a plurality of teeth that extend in the radial direction from the respective split stator cores, and   a plurality of coils that are formed by winding a conducting wire around each of the plurality of teeth,   wherein electronic components are disposed below the stator in an axial direction,   wherein at least a part of each electronic component overlaps the stator core in the axial direction, and   wherein, when viewed in the axial direction, joining portions where the split stator cores arranged in the peripheral direction are joined and the electronic components are displaced in the peripheral direction.   
     
     
         2 . The motor according to  claim 1 , wherein the electronic components are accommodated in insulating holder portions. 
     
     
         3 . The motor according to  claim 1 , wherein the electronic components are terminals to be connected to the coils. 
     
     
         4 . The motor according to  claim 3 , wherein the terminals are disposed between the joining portions and the teeth in the peripheral direction. 
     
     
         5 . The motor according to  claim 3 , wherein the terminals are disposed at a center in the peripheral direction between the teeth that are adjacent to each other in the peripheral direction. 
     
     
         6 . The motor according to  claim 3 , wherein the terminals are disposed at equal intervals in the peripheral direction. 
     
     
         7 . The motor according to  claim 1 , wherein the joining portions where split stator cores that are adjacent to each other in the peripheral direction are joined to each other are disposed at a center in the peripheral direction between teeth adjacent to each other in the peripheral direction. 
     
     
         8 . The motor according to  claim 1 , wherein the plurality of coils are connected by delta connection. 
     
     
         9 . A blower comprising:
 an impeller; and   the motor according to  claim 1 ,   wherein the impeller is rotated by the motor.   
     
     
         10 . A vacuum cleaner comprising
 the blower according to  claim 9 .