MOTOR AND MOTOR MANUFACTURING METHOD
First Claim
1. A motor comprising:
- a motor shaft;
a rotor that rotates about the motor shaft;
a stator disposed around the rotor, the stator including a stator core and a stator coil wound around the stator core, the stator coil being wound around the stator core in a condition where coil ends on respective sides of the stator coil, which serve as turned back parts on respective ends thereof, project outwardly in an axial direction beyond respective axial direction end surfaces of the stator core;
a casing accommodating the rotor and the stator; and
a sealing body charged into the casing to seal an entirety of the stator or a part of the stator including the coil ends on the respective sides,wherein a side surface on a radially inner side of a specific coil end of the coil ends on the respective sides is inclined so as to displace outwardly in a radial direction with close to a tip of the specific coil end.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a motor including a motor shaft, a rotor; a stator including a stator core and a stator coil, the stator coil being wound around the stator core so that coil ends on respective sides of the stator coil serving as turned back parts project axially outwardly beyond respective axial direction end surfaces of the stator core, a casing accommodating the rotor and the stator, and a sealing body charged into the casing to seal the entire stator or a part of the stator including the coil ends on the respective sides. A side surface on a radially inner side of a specific coil end of the coil ends on the respective sides is inclined so as to displace outwardly in a radial direction with close to a tip of the specific coin end.
-
Citations
8 Claims
-
1. A motor comprising:
-
a motor shaft; a rotor that rotates about the motor shaft; a stator disposed around the rotor, the stator including a stator core and a stator coil wound around the stator core, the stator coil being wound around the stator core in a condition where coil ends on respective sides of the stator coil, which serve as turned back parts on respective ends thereof, project outwardly in an axial direction beyond respective axial direction end surfaces of the stator core; a casing accommodating the rotor and the stator; and a sealing body charged into the casing to seal an entirety of the stator or a part of the stator including the coil ends on the respective sides, wherein a side surface on a radially inner side of a specific coil end of the coil ends on the respective sides is inclined so as to displace outwardly in a radial direction with close to a tip of the specific coil end. - View Dependent Claims (2, 3)
-
-
4. A method of manufacturing a motor that includes:
- a motor shaft;
a rotor that rotates about the motor shaft;
a stator disposed around the rotor, the stator including a stator core and a stator coil wound around the stator core, the stator coil being wound around the stator core in a condition where coil ends on respective sides of the stator coil, which serve as turned back parts on respective ends thereof, project outwardly in an axial direction beyond respective axial direction end surfaces of the stator core;
a casing accommodating the rotor and the stator; and
a sealing body charged into the casing to seal an entirety of the stator or a part of the stator including the coil ends on the respective sides,the method comprising; a coil winding step of winding the stator coil around the stator core; an inclination provision step of providing a side surface on a radially inner side of the specific coil end of the coil ends on the respective sides of the stator coil, following the coil winding step, with such an inclination that the side surface displaces outwardly in a radial direction with close to a tip of a specific coil end; and an injection step of injecting a sealant which serves as a material of the sealing body, from a side of the specific coil end, into the casing in which the stator whose side surface on the radially inner side of the specific coil end has been provided with the inclination is accommodated. - View Dependent Claims (5, 6, 7, 8)
- a motor shaft;
Specification