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US 11,877,132 B2Granted
Micro transducer molding
AssigneeBose Corporation
InventorsMarek Kawka, Alexander Irwin, Martha Carman, Timothy M. Parker
Life of this patent
Estimating the term…
Abstract
Articles and methods are provided for miniature acoustic transducers having highly compliant suspension systems despite their small size. In various examples the suspension system is molded of a liquid silicone rubber (LSR) and is molded in an interior cavity geometry that includes and apex radially offset and/or axially offset from a desired cured position of an apex of the suspension.
Claims20
An acoustic transducer comprising:
- a frame having a diameter of 8.0 millimeters or less;
- a non-planar suspension formed of a compliant material coupled to the frame, the suspension being formed by injecting the compliant material into a mold having an interior cavity geometry with an apex positioned to be radially offset or axially offset from a desired cured position of the apex of the suspension;
- and
- a diaphragm coupled to and suspended by the suspension, such that the diaphragm is suspended within the frame.
1 more element
An acoustic transducer comprising:
- a circular frame having a diameter of 8.0 millimeters or less;
- a half-roll suspension having a substantially semi-circular cross-section formed of a compliant material coupled to the frame, the suspension being formed by injecting the compliant material into a mold having an interior cavity geometry with an apex positioned to be radially offset or axially offset from a desired cured position of the apex of the suspension;
- and
- a diaphragm coupled to and suspended by the suspension, such that the diaphragm is suspended within the frame.
1 more element
Dependencies are inferred from the claim text.