Multicoil balanced armature receiver
AssigneeKnowles Electronics, LLC
InventorsYahui Zhang, Cristiana Downey, Christopher Monti, Kalyan Nadella, Thomas E. Miller
Life of this patent
Estimating the term…
Abstract
A balanced armature receiver is disclosed including a multicoil motor located in a housing and comprising a movable armature connected to a diaphragm separating an interior of the housing into front and back volumes. The multicoil motor is electrically connected to contacts of a terminal board having an integrated capacitor component, wherein electrical connections of the multicoil motor and the capacitor component to the terminal board are configured to change an electrical impedance of the balanced armature receiver based on a frequency of an electrical signal applied to the multicoil motor.
Claims19
A balanced armature receiver comprising:
- a housing containing a diaphragm that separates an interior of the housing into a back volume and a front volume acoustically coupled to a sound port of the housing;
- a multicoil motor located in the housing and comprising an armature having a movable portion connected to the diaphragm;
- a terminal board integrated with the balanced armature receiver and comprising a plurality of contacts, the multicoil motor electrically connected to contacts of the terminal board;
- and
- a capacitor component integrated with the terminal board and electrically connected to contacts of the terminal board,
- wherein the electrical connections of the multicoil motor and the capacitor component to the terminal board are configured to change an electrical impedance of the balanced armature receiver based on a frequency of an electrical signal applied to the multicoil motor, and
- wherein the terminal board and capacitor are located within the housing.
A balanced armature receiver comprising:
- a housing containing a diaphragm that separates an interior of the housing into a back volume and a front volume acoustically coupled to a sound port of the housing;
- a multicoil motor located in the housing and comprising an armature having a movable portion connected to the diaphragm;
- a terminal board integrated with the balanced armature receiver, lead wires of the multicoil motor electrically routed through an aperture of the housing and connected to contacts on a portion of the terminal board accessible from an exterior of the housing, wherein each contact of the contacts includes an exterior surface accessible from the exterior of the housing and wherein each lead wire of the lead wires is connected to the exterior surface of one of each contact;
- a capacitor component integrated with the terminal board and electrically connected to contacts of the terminal board.
A balanced armature receiver comprising:
- a housing containing a diaphragm that separates an interior of the housing into a back volume and a front volume acoustically coupled to a sound port of the housing;
- a multicoil motor located in the housing and comprising an armature having a movable portion connected to the diaphragm;
- a terminal board integrated with the balanced armature receiver and comprising a plurality of contacts, the multicoil motor electrically connected to contacts of the terminal board;
- and
- a capacitor component integrated with the terminal board and electrically connected to contacts of the terminal board,
- wherein the electrical connections of the multicoil motor and the capacitor component to the terminal board are configured to change an electrical impedance of the balanced armature receiver based on a frequency of an electrical signal applied to the multicoil motor,
- the terminal board fastened to an exterior of the housing, the housing comprising at least two discrete apertures through which lead wires of first and second coils of the multicoil motor are selectively routed to the terminal board,
- each contact of the contacts of the terminal board including an exterior surface accessible from an exterior of the terminal board that faces away from the housing, each lead wire of the lead wires connected to the exterior surface of one of the contacts.
Dependencies are inferred from the claim text.