RECEIVER HAVING A SUSPENDED MOTOR ASSEMBLY

• US 20160227328A1
• Filed: 01/28/2016
• Published: 08/04/2016
• Est. Priority Date: 01/30/2015
• Status: Active Grant

• Current Assignee: Sonion Nederland BV
• Original Assignee: Sonion Nederland BV
• Inventors: van Halteren, Aart Zeger, Lafort, Adrianus Maria, Voss, Rasmus, Bolsman, Caspar Titus, Tiefenau, Andreas, van Hal, Paul Christiaan
• Granted Patent: US 10,009,693 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04R 1/02 Casings; Cabinets ; Supports therefor; Mountings therein H04R1/28 takes precedence ; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075
• CPC Class Codes: H04R 1/2896 for loudspeaker transducers
• CPC Class Codes: H04R 11/02 Loudspeakers
• CPC Class Codes: H04R 11/04 Microphones
• CPC Class Codes: H04R 2400/07 Suspension between moving magnetic core and housing
• CPC Class Codes: H04R 25/453 electronically
• CPC Class Codes: H04R 25/604 of acoustic or vibrational transducers

Abstract

A receiver comprising a housing defining a chamber, and a motor assembly that includes a magnet assembly and an armature. Furthermore, the receiver includes a diaphragm operationally attached to the armature. The motor assembly is attached to the housing by a movable suspension structure.

Claims

1. A receiver comprising:

a housing defining a chamber;

a motor assembly including a magnet assembly and an armature; and

a diaphragm operationally attached to the armature,

wherein the motor assembly is attached to the housing by a movable suspension structure.

2. A receiver according to claim 1, wherein the movable suspension structure is attached to an inner wall of the housing at a single attachment point.

3. A receiver according to claim 1, wherein the motor assembly is configured for pivotal movement around a pivot axis being substantially perpendicular to the first direction.

4. A receiver according to claim 1, further comprising a limiting member configured to decrease relative movement between the housing and the motor assembly.

5. A receiver according to claim 1, wherein the magnet assembly is configured for providing a magnetic field in an air gap, and wherein the armature comprises a first leg extending in a first direction through the air gap.

6. A receiver according to claim 1, wherein the armature forms an E-shape with three legs extending substantially parallel in the first direction, and wherein the first leg forms the central leg of three legs.

7. A receiver according to claim 6, wherein the first leg extends through a coil tunnel.

8. A receiver according to claim 1, wherein the armature forms a U-shape with two legs extending substantially parallel in the first direction, and wherein the first leg forms one of the legs of the two legs.

9. A receiver according to claim 8, wherein the first leg or a second leg forming the other one of the two legs of the U-shaped armature extends through a coil tunnel.

10. A receiver according to claim 1, further comprising a second diaphragm being operationally attached to the motor assembly.

11. A receiver according to claim 1, further comprising a stiffening member coupling the magnet assembly to at least one of the diaphragm, the coil, and the second diaphragm.

12. A hearing aid comprising a receiver according to claim 1, wherein the housing is arranged in a shell formed by the hearing aid.

13. A method of reducing vibrations in a receiver, the method comprising the steps of:

providing a housing defining a chamber,

providing a motor assembly including a magnet assembly and an armature,

providing a diaphragm,

providing a movable suspension structure,

attaching the diaphragm to the armature, and

attaching the motor assembly to an inner wall of the housing by the movable suspension structure.