Invention Grant
- Patent Title: Electromagnetic transducer
- Patent Title (中): 电磁换能器
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Application No.: US13325693Application Date: 2011-12-14
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Publication No.: US09071909B2Publication Date: 2015-06-30
- Inventor: Lin-Zhen Li , Suo-He Wei
- Applicant: Lin-Zhen Li , Suo-He Wei
- Applicant Address: CN Shenzhen US CA La Verne
- Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.,AMERICAN AUDIO COMPONENTS INC.
- Current Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.,AMERICAN AUDIO COMPONENTS INC.
- Current Assignee Address: CN Shenzhen US CA La Verne
- Agency: Anova Law Group, PLLC
- Priority: CN201120004252 20110107
- Main IPC: H04R1/00
- IPC: H04R1/00 ; H04R11/02 ; H04R9/02 ; H04R9/06 ; H04R1/02

Abstract:
A multifunctional electromagnetic transducer includes a bracket, a vibrating unit including a magnetic circuit part receiving in the bracket, and a plurality of helical wound springs assembled to the bracket for sustaining the magnetic circuit part. The magnetic circuit part defines a pole plate, a first magnet disposed at a center portion of the pole plate, and a plurality of second magnets surrounding the first magnet and forming a magnetic gap corporately with the first magnet. Each of the second magnets forms a receiving gap corporately with an adjacent second magnet. A voice coil is partially inserted into the magnetic gap.
Public/Granted literature
- US20120177247A1 ELECTROMAGNETIC TRANSDUCER Public/Granted day:2012-07-12
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