ELECTROMAGNETIC NON-CONTACT BRAKE
First Claim
1. An electromagnetic non-contact brake, comprising:
- an annular stator assembly including a predetermined number of poles formed about the stator assembly;
a rotor assembly disposed within the stator assembly including a selected number of poles formed about the rotor assembly;
a shaft extending through a center portion of the rotor assembly and being fixedly attached to the rotor assembly; and
an electrical connection adapted to controllably apply electrical power to at least one of the stator assembly and the rotor assembly to cause a plurality of magnetic fields to be simultaneously generated around at least one of the stator assembly and the rotor assembly by the poles of at least one of the stator assembly and the rotor assembly in response to the electrical power being applied, wherein each of the plurality of magnetic fields causes the poles of the stator assembly and the poles of the rotor assembly to be magnetically attracted to one another to substantially prevent the rotor assembly and the shaft from rotating.
1 Assignment
0 Petitions
Accused Products
Abstract
An electromagnetic non-contact brake may include an annular stator assembly including a predetermined number of poles formed about the stator assembly. A rotor assembly is disposed within the stator assembly and may include a selected number of poles formed about the rotor assembly. A shaft may extend through a center portion of the rotor assembly and be fixedly attached to the rotor assembly. An electrical connection is adapted to controllably apply electrical power to at least one of the stator assembly and the rotor assembly. The electrical power causes a plurality of magnetic fields to be simultaneously generated around at least one of the stator assembly and the rotor assembly by the poles. Each of the plurality of magnetic fields causes the poles of the stator assembly and the poles of the rotor assembly to be magnetically attracted to one another to substantially prevent the rotor assembly and the shaft from rotating.
11 Citations
20 Claims
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1. An electromagnetic non-contact brake, comprising:
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an annular stator assembly including a predetermined number of poles formed about the stator assembly; a rotor assembly disposed within the stator assembly including a selected number of poles formed about the rotor assembly; a shaft extending through a center portion of the rotor assembly and being fixedly attached to the rotor assembly; and an electrical connection adapted to controllably apply electrical power to at least one of the stator assembly and the rotor assembly to cause a plurality of magnetic fields to be simultaneously generated around at least one of the stator assembly and the rotor assembly by the poles of at least one of the stator assembly and the rotor assembly in response to the electrical power being applied, wherein each of the plurality of magnetic fields causes the poles of the stator assembly and the poles of the rotor assembly to be magnetically attracted to one another to substantially prevent the rotor assembly and the shaft from rotating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An electromechanical actuator and non-contact brake, comprising:
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an electrical motor assembly including an output shaft for operating a movable part of a vehicle; and an electromagnetic non-contact brake for acting on the output shaft to substantially prevent the output shaft from rotating, wherein the electromagnetic non-contact brake comprises; an annular stator assembly including a predetermined number of poles formed about the stator assembly; a rotor assembly disposed within the stator assembly including a selected number of poles formed about the rotor assembly; a shaft extending through a center portion of the rotor assembly and being fixedly attached to the rotor assembly; and an electrical connection adapted to controllably apply electrical power to at least one of the stator assembly and the rotor assembly to cause a plurality of magnetic fields to be simultaneously formed around at least one of the stator assembly and the rotor assembly by the poles of at least one of the stator assembly and the rotor assembly in response to the electrical power being applied, wherein each of the plurality of magnetic fields causes the poles of the stator assembly and the poles of the rotor assembly to be magnetically attracted to one another to substantially prevent the rotor assembly and the shaft from rotating, and wherein the shaft is linked to the output shaft of the electric motor assembly to substantially prevent the output shaft from rotating. - View Dependent Claims (12, 13, 14, 15)
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16. A method for braking a motor, comprising:
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applying electrical power to at least one of an annular shaped stator assembly and a rotor assembly disposed within the stator assembly, wherein the stator assembly comprises a predetermined number of poles formed about the stator assembly and the rotor assembly includes a selected number of poles formed about the rotor assembly; and simultaneously generating a plurality of magnetic fields around at least one of the stator assembly and the rotor assembly by the poles of at least one of the stator assembly and the rotor assembly in response to applying the electrical power, wherein each of the plurality of magnetic fields causes the poles of the stator assembly and the poles of the rotor assembly to be magnetically attracted to one another to substantially prevent the rotor assembly from rotating, the rotor assembly being mechanically coupled to an output shaft of the motor to substantially prevent the output shaft from rotating. - View Dependent Claims (17, 18, 19, 20)
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Specification