Electromagnetic shield for an electric motor
First Claim
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1. A motor, comprising:
- a stator;
a rotor having a rotor structure including magnetically permeable material and terminating at a first axial plane;
a sensor assembly disposed at a second axial plane spaced from the first axial plane; and
an electromagnetic shield carried by the rotor and located between the first and second axial planes;
wherein the stator is characterized by the absence of an electromagnetic shield therein.
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Abstract
Electromagnetic shielding apparatus is provided for a motor having a rotor and a stator wherein the shielding apparatus is characterized by the absence of an electromagnetic shield in the stator of the motor.
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Citations
18 Claims
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1. A motor, comprising:
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a stator; a rotor having a rotor structure including magnetically permeable material and terminating at a first axial plane; a sensor assembly disposed at a second axial plane spaced from the first axial plane; and an electromagnetic shield carried by the rotor and located between the first and second axial planes; wherein the stator is characterized by the absence of an electromagnetic shield therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a canned motor/pump including a stator having a stator winding, a rotor carrying a rotor structure and a sensor assembly spaced from the rotor structure, the improvement comprising:
means carried by the rotor in abutment with the rotor structure and not disposed in the stator for electromagnetically shielding the sensor assembly from the stator winding. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification