Invention Grant
- Patent Title: Balanced armature receiver
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Application No.: US17842744Application Date: 2022-06-16
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Publication No.: US12047740B2Publication Date: 2024-07-23
- Inventor: Yahui Zhang , Shehab Albahri
- Applicant: Knowles Electronics, LLC
- Applicant Address: US IL Itasca
- Assignee: Knowles Electronics, LLC
- Current Assignee: Knowles Electronics, LLC
- Current Assignee Address: US IL Itasca
- Agency: Loppnow & Chapa
- Main IPC: H04R11/02
- IPC: H04R11/02 ; H01F7/08 ; H01F7/128 ; H04R1/02 ; H04R7/12

Abstract:
A balanced armature receiver including a motor with a yoke for retaining magnets and fastening to an armature are disclosed. The yoke includes a close-ended wall structure formed of a soft magnetic material having multiple folded corners defining an armature passage. A first magnet retaining wall portion of the yoke is arranged in parallel with, and opposite, a second magnet retaining wall portion, wherein at least a portion of the first magnet retaining wall portion has a reduced thickness relative to other wall portions of the close-ended wall structure. The armature is connected to the reduced thickness portion of the first magnet retaining wall portion, thereby reducing an overall z-axis dimension of the motor.
Public/Granted literature
- US20230412987A1 Balanced Armature Receiver Public/Granted day:2023-12-21
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