Vibration-dampening receiver assembly

• US 6,751,326 B2
• Filed: 03/15/2001
• Issued: 06/15/2004
• Est. Priority Date: 03/15/2000
• Status: Expired due to Fees

• Current Assignee: Knowles Electronics Llc (Knowles Corporation)
• Original Assignee: Knowles Electronics Llc (Knowles Corporation)
• Inventors: Nepomuceno, Henry G.
• Primary Examiner(s): LE, HUYEN D
• Application Number:
  US09/809,130
• Publication Number:
  US 20010036289A1
• Time in Patent Office: 1,188 Days
• Field of Search: 381/322, 381/324, 381/325, 381/327, 381/328, 381/330, 381/370, 381/380, 381/FOR.126, 381/FOR.133, 381/FOR.135, 381/FOR.150, 381/309, 181/129, 181/130, 181/135
• US Class Current: 381/322
• CPC Class Codes: H04R 25/604 of acoustic or vibrational transducers
• CPC Class Codes: H04R 25/652 Ear tips; Ear moulds hybrid ear moulds or post-processing thereof for their customisation H04R25/659

Abstract

A receiver assembly for a hearing aid device, the assembly comprising a case having an inner cavity, one or more mounts disposed within the inner cavity of the case, and a receiver disposed within the inner cavity of the case and connected to the mounts such that the receiver is suspended within the inner cavity of the case. The mounts dampen any vibration transmission from the receiver to the case and from the case to the receiver. Most significantly, acoustical noise from the receiver and any resulting distortion, feedback, and/or interference within the other components of the hearing aid device are substantially eliminated.

Claims

1. A vibration-dampening receiver assembly adapted for use in a hearing aid device, the assembly comprising:

an inner receiver housing;

an outer receiver case defining two ends and encasing the inner receiver housing, the outer receiver case including a generally cylindrical sleeve that extends from the one end of the case and defines a port located at the one end and defining an interior surface an interior cavity, the port allowing the receiver to transmit acoustical energy therethrough;

a vibration-dampening mount disposed between the outer receiver case and the inner receiver housing, wherein the mount engages the inner receiver housing proximate an end portion of the outer receiver case, thereby suspending the inner receiver housing within the interior cavity of the outer receiver case;

said vibration-dampening mount having a first mount and a second mount, the first mount having a generally cylindrical portion having an aperture therethrough, the cylindrical portion of the first mount disposed within the cylindrical sleeve of the case, an aperture in the other end of the outer receiver case; and

a mounting pin disposed within the aperture of the outer receiver case such that movement of the pin is generally restricted in a direction generally transverse to the ends of the outer receiver case, the second mount connected to the mounting pin.

2. A vibration-dampening assembly for a receiver adapted for use in a hearing aid device, the assembly comprising:

an inner receiver housing;

an outer receiver case encasing the inner receiver housing, the outer receiver case having two portions generally defining halves of the case, the two halves together defining an interior surface, an interior cavity, a first outer receiver case end and a second outer receiver case end, the first outer receiver case end having a generally cylindrical sleeve defining a port and the second outer receiver case end having an aperture, the port allowing the inner receiver housing to transmit acoustical energy therethrough;

a first vibration-dampening mount having a hollow cylindrical portion disposed within the cylindrical sleeve between the interior surface of the outer receiver case and the receiver housing;

a mounting pin disposed within the aperture in the second outer receiver case end; and

a second vibration-dampening mount connected to the mounting pin and the inner receiver housing, the second mount being disposed between the interior surface of the outer receiver case and the inner receiver housing, wherein the first and second mounts support the inner receiver housing within the interior cavity of the outer receiver case and substantially prevent contact between the inner receiver housing and the interior surface of the outer receiver case.