Miniature voice coil having helical lead-out for electro-acoustic transducer
AssigneeBose Corporation
InventorDavid W. Beverly
Life of this patent
Estimating the term…
Abstract
An electro-acoustic driver comprises a sleeve having a first end and a second end; a first wire exit opening at a first position of the sleeve; a second wire exit opening at a second position of the sleeve; a voice coil within the sleeve; a magnetic assembly in magnetic communication with the voice coil in the sleeve between the first end and the second end; and a conductive wire of the voice coil having a first region at the first wire exit opening, a second region at the voice coil, and a third region between the first and second regions configured as a helix about the acoustic assembly. The third region of the conductive wire is substantially unsupported between the voice coil and the first wire exit opening.
Claims26
An electro-acoustic driver, comprising:
- a sleeve having a first end and a second end;
- a first wire exit opening at a first position of the sleeve;
- a second wire exit opening at a second position of the sleeve;
- a voice coil within the sleeve;
- a magnetic assembly in magnetic communication with the voice coil in the sleeve between the first end and the second end;
- and
- a conductive wire of the voice coil having a first region at the first wire exit opening, a second region at the voice coil, and a third region between the first and second regions configured as a helix about the acoustic assembly, the third region of the conductive wire being substantially unsupported between the voice coil and the first wire exit opening.
An electro-acoustic driver, comprising:
- a sleeve having a first end and a second end;
- a voice coil within the sleeve;
- a magnetic assembly in magnetic communication with the voice coil in the sleeve between the first end and the second end;
- a mandrel element about a portion of the magnetic assembly;
- and
- a conductive wire extending from the voice coil, the conductive wire being substantially (a) in the shape of a helix between the voice coil and the mandrel element, and (b) unsupported between the voice coil and the mandrel element.
A method for assembling an electro-acoustic driver, comprising:
- positioning a voice coil within a sleeve, the sleeve including a first wire exit opening at a first position of a sleeve and a second wire exit opening at a second position of the sleeve;
- positioning a magnetic assembly in the sleeve between the first end and the second end;
- and
- arranging a conductive wire of the voice coil as a helix about the magnetic assembly between the voice coil and the first wire exit opening, the helical conductive wire being substantially unsupported between the voice coil and the first wire exit opening.
A method for forming an electro-acoustic driver, comprising:
- positioning a voice coil within a sleeve;
- positioning a magnetic assembly including a mandrel element in the sleeve between a first end and a second end of the sleeve;
- and
- arranging a conductive wire of the voice coil as a helix about the magnetic assembly between the voice coil and the mandrel.
Dependencies are inferred from the claim text.