Patent ID: 11962988
Assignee: MAYHT HOLDING B.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A linear motor magnet assembly for use in a loudspeaker unit, the linear motor magnet assembly comprising a fixed base actuator component and a membrane actuating element, the membrane actuating element having a linear excursion axis, the linear motor magnet assembly further comprising a first auxiliary magnetic element and a second auxiliary magnetic element,
the first auxiliary magnetic element comprising first and second magnetic bodies at a predetermined distance from each other along the linear excursion axis and axially aligned to provide a first auxiliary spatial magnetic field with a major axis aligned with the linear excursion axis of the linear motor magnet assembly,
the second auxiliary magnetic element being fixedly connected to the membrane actuating element of the linear motor magnet assembly and disposed at a position overlapping the first magnetic body of the first auxiliary magnetic element at a resting position, the second auxiliary magnetic element having a second auxiliary spatial magnetic field, the second auxiliary spatial magnetic field overlapping the first auxiliary spatial magnetic field and being substantially similarly oriented as the first auxiliary spatial magnetic field over a first predetermined excursion range of the linear motor magnet assembly,
wherein the membrane actuating element comprises a voice coil disposed axially between the two magnetic bodies of the first auxiliary magnetic element at a resting position, the voice coil being arranged to generate a voice coil magnetic field interacting with the first auxiliary spatial magnetic field to move the voice coil along the linear excursion axis.