Moving-magnet motor
AssigneeApple Inc.
InventorsOnur I. Ilkorur, Oliver Leonhardt, Matthew A. Donarski, Christopher Wilk
Life of this patent
Estimating the term…
Abstract
A moving magnet motor comprising: a stationary voice coil coupled to a frame; a moving magnet assembly movably coupled to the frame and operable to move relative to the stationary coil, the moving magnet assembly comprising a magnet and a flux concentrating member that define a gap within which the stationary coil is positioned; and an actuating surface coupled to the moving magnet assembly, and wherein a movement of the moving magnet assembly drives a movement of the actuating surface along an axis of translation.
Claims24
A moving magnet motor comprising:
- a stationary coil coupled to a frame;
- a moving magnet assembly movably coupled to the frame and operable to move relative to the stationary coil, the moving magnet assembly comprising a magnet and a flux concentrating member that define a gap within which the stationary coil is positioned and a dominant flux density region along an entire winding height of the stationary coil;
- and
- an actuating surface coupled to the moving magnet assembly, and wherein a movement of the moving magnet assembly drives a movement of the actuating surface along an axis of translation.
A loudspeaker magnet motor assembly comprising:
- a stationary portion comprising a continuous voice coil fixedly coupled to a frame;
- and
- a moving portion comprising a diaphragm and a magnet assembly movably coupled to the frame, the magnet assembly having a first magnet member and a second magnet member operable to focus a magnetic flux density toward the continuous voice coil and translate along the continuous voice coil to drive a movement of the diaphragm along an axis of translation.
An electronic device comprising:
- an electronic device housing;
- a moving magnet motor coupled to the electronic device housing, the moving magnet motor having a stationary voice coil and a moving magnet assembly operable to move relative to the stationary voice coil, the moving magnet assembly comprising a magnet and a flux concentrating member that define a gap within which the stationary voice coil is positioned and a displacement range along an entire winding height of the stationary voice coil;
- and
- an actuating surface coupled to the moving magnet assembly, wherein a movement of the moving magnet assembly drives a movement of the actuating surface along an axis of translation.
Dependencies are inferred from the claim text.