Rotating electric machine and manufacturing method thereof
First Claim
1. A rotating electric machine comprising:
- a stator having a stator core fixed inside a bottomed frame and a stator winding wound around the stator core;
a bracket fixed to an opening side of the frame;
a rotor having a shaft penetrating the bracket and rotatably supported by a bracket side bearing fixed to the bracket and by a frame side bearing arranged at the frame, the rotor being arranged inside the stator core interposing a gap therebetween;
a respective phase lead wire electrically connected to the stator winding and led out from the bracket;
a rotation sensor fixed to the bracket that detects a rotational position of the rotor; and
a sensor signal wire connected to the rotation sensor and led out from the bracket, whereinthe respective phase lead wire and the sensor signal wire are led out from portions of the bracket different from each other, anda front end portion of the respective phase lead wire is introduced to inside the bracket from outside an opening portion provided at the bracket, thereby electrically connecting to the stator winding from outside the bracket,wherein the respective phase lead wire is inserted though a grommet, the front end portion thereof being introduced to inside the bracket though the opening portion provided at the bracket, andthe grommet is arranged to close the opening portion from outside the bracket and is fixed to the opening portion from outside the bracket by a cover.
1 Assignment
0 Petitions
Accused Products
Abstract
A rotating electric machine which includes: a stator having a stator core fixed inside a bottomed frame and a stator winding wound around the stator core; a bracket fixed to an opening side of the frame; a rotor having a shaft penetrating the bracket and rotatably supported by a bracket side bearing and by a frame side bearing, the rotor being arranged inside the stator core interposing a gap therebetween; a respective phase lead wire electrically connected to the stator winding and led out from the bracket; a rotation sensor that detects a rotational position of the rotor; and a sensor signal wire connected to the rotation sensor and led out from the bracket. A front end portion of the respective phase lead wire is introduced to inside the bracket from outside an opening portion provided at the bracket, thereby electrically connecting to the stator winding.
23 Citations
8 Claims
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1. A rotating electric machine comprising:
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a stator having a stator core fixed inside a bottomed frame and a stator winding wound around the stator core; a bracket fixed to an opening side of the frame; a rotor having a shaft penetrating the bracket and rotatably supported by a bracket side bearing fixed to the bracket and by a frame side bearing arranged at the frame, the rotor being arranged inside the stator core interposing a gap therebetween; a respective phase lead wire electrically connected to the stator winding and led out from the bracket; a rotation sensor fixed to the bracket that detects a rotational position of the rotor; and a sensor signal wire connected to the rotation sensor and led out from the bracket, wherein the respective phase lead wire and the sensor signal wire are led out from portions of the bracket different from each other, and a front end portion of the respective phase lead wire is introduced to inside the bracket from outside an opening portion provided at the bracket, thereby electrically connecting to the stator winding from outside the bracket, wherein the respective phase lead wire is inserted though a grommet, the front end portion thereof being introduced to inside the bracket though the opening portion provided at the bracket, and the grommet is arranged to close the opening portion from outside the bracket and is fixed to the opening portion from outside the bracket by a cover. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of manufacturing a rotating electric machine, which includes:
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a stator having a stator core fixed inside a bottomed frame and a stator winding wound around the stator core; a bracket fixed to an opening side of the frame; a rotor having a shaft penetrating the bracket and rotatably supported by a bracket side bearing fixed to the bracket and by a frame side bearing arranged at the frame, the rotor being arranged inside the stator core interposing a gap therebetween; a respective phase lead wire electrically connected to the stator winding and led out from an opening portion of the bracket; a rotation sensor fixed to the bracket that detects a rotational position of the rotor; and a sensor signal wire connected to the rotation sensor and led out from a portion of the bracket different from the portion from which the respective phase lead wire is led out, the method comprising; a step of leading out the sensor signal wire from inside to outside the bracket through the portion of the bracket different from the portion from which the respective phase lead wire is led; a step of covering inside the bracket by the frame and fixing the bracket and the frame; and a step of introducing a front end portion of the respective phase lead wire from outside the opening portion of the bracket to inside the bracket through the portion of the bracket from which the respective phase lead wire is led out, and electrically connecting the front end portion to the stator winding from outside the bracket. - View Dependent Claims (8)
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Specification