IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0120938
(2008-05-15)
|
등록번호 |
US-7777385
(2010-09-06)
|
발명자
/ 주소 |
- Wingett, Paul
- Lane, Glenn
- Potter, Cal
|
출원인 / 주소 |
- Honeywell International Inc.
|
대리인 / 주소 |
Ingrassia Fisher & Lorenz, P.C.
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
49 |
초록
▼
An actuator assembly includes a motor assembly, a harmonic drive gearbox, an actuator, and an electromagnet brake device. The actuator assembly is fairly compact in size and the electromagnetic brake device is a non-contact type of devices, making it less prone to wear as compared to many other brak
An actuator assembly includes a motor assembly, a harmonic drive gearbox, an actuator, and an electromagnet brake device. The actuator assembly is fairly compact in size and the electromagnetic brake device is a non-contact type of devices, making it less prone to wear as compared to many other brake devices.
대표청구항
▼
What is claimed is: 1. An actuator assembly, comprising: a motor assembly including a motor and a motor shaft, the motor configured to supply a first torque to the motor shaft; a harmonic drive gearbox coupled to receive the first torque from the motor shaft and operable, in response thereto, to su
What is claimed is: 1. An actuator assembly, comprising: a motor assembly including a motor and a motor shaft, the motor configured to supply a first torque to the motor shaft; a harmonic drive gearbox coupled to receive the first torque from the motor shaft and operable, in response thereto, to supply a second torque; an actuator coupled to receive the second torque from the harmonic drive gearbox and configured, in response thereto, to move to a position; a latch rotor coupled to the motor shaft to rotate therewith, the latch rotor comprising a main body having a plurality of lobes that extend radially therefrom; one or more permanent magnets spaced apart from and at least partially surrounding the latch rotor, each of the one or more permanent magnets having one or more pole pairs and supplying a permanent magnetic field that opposes rotation of the latch rotor; and a latch electromagnet adapted to receive a flow of electrical current and configured, upon receipt thereof, to generate a magnetic field that simultaneously opposes all of the permanent magnetic fields supplied from the one or more permanent magnets or simultaneously aids all of the permanent magnetic fields supplied from the one or more permanent magnets, the electromagnet comprising: a latch stator non-rotationally mounted adjacent to, and at least partially surrounding, the latch rotor, the latch stator having the one or more permanent magnets mounted thereon, and a plurality of latch windings wound around at least a portion of the latch stator, the latch windings disposed adjacent the one or more permanent magnets and adapted to receive the flow of electrical current, the latch windings wound on the latch stator such that, upon receipt of the flow of electrical current, the latch windings generate the same number of magnetic pole pairs as there are permanent magnet pole pairs. 2. The actuator assembly of claim 1, wherein at least a portion of each of the plurality of lobes comprises a magnetically permeable material. 3. The actuator assembly of claim 1, wherein the motor is a pancake motor. 4. The actuator assembly of claim 1, wherein: the harmonic drive gearbox comprises a wave generator, a flexspline, and a circular spline; and the actuator is coupled to the flexspline. 5. The actuator assembly of claim 1, wherein: the harmonic drive gearbox comprises a wave generator, a flexspline, and a circular spline; and the actuator is coupled to the circular spline. 6. An actuation control system, comprising: a motor assembly including a motor and a motor shaft, the motor configured to be controllably energized and, in response to being controllably energized, to supply a first torque to the motor shaft; a control circuit adapted to receive input signals and operable, in response thereto, to controllably energize the motor and to selectively supply latch control signals; a harmonic drive gearbox coupled to receive the first torque from the motor shaft and operable, in response thereto, to supply a second torque; an actuator coupled to receive the second torque from the harmonic drive gearbox and configured, in response thereto, to move to a position; a latch rotor coupled to the motor shaft to rotate therewith, the latch rotor comprising a main body having a plurality of lobes that extend radially therefrom; one or more permanent magnets spaced apart from and at least partially surrounding the latch rotor, each of the one or more permanent magnets having one or more pole pairs and supplying a permanent magnetic field that opposes rotation of the latch rotor; and a latch electromagnet adapted to receive a flow of electrical current and configured, upon receipt thereof, to generate a magnetic field that simultaneously opposes all of the permanent magnetic fields supplied from the one or more permanent magnets or simultaneously aids all of the permanent magnetic fields supplied from the one or more permanent magnets, the electromagnet comprising: a latch stator non-rotationally mounted adjacent to, and at least partially surrounding, the latch rotor, the latch stator having the one or more permanent magnets mounted thereon, and a plurality of latch windings wound around at least a portion of the latch stator, the latch windings disposed adjacent the one or more permanent magnets and adapted to receive the flow of electrical current, the latch windings wound on the latch stator such that, upon receipt of the flow of electrical current, the latch windings generate the same number of magnetic pole pairs as there are permanent magnet pole pairs. 7. The system of Claim 6, wherein at least a portion of each of the plurality of lobes comprises a magnetically permeable material. 8. The system of claim 6, further comprising: a power source coupled to receive the latch control signals and operable, upon receipt thereof, to supply the flow of electrical current to the electromagnet. 9. The system of claim 6, wherein the motor is a pancake motor. 10. The system of claim 6, wherein: the harmonic drive gearbox comprises a wave generator, a flexspline, and a circular spline; and the actuator is coupled to the flexspline. 11. The system of claim 6, wherein: the harmonic drive gearbox comprises a wave generator, a flexspline, and a circular spline; and the actuator is coupled to the circular spline.
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