Invention Grant
- Patent Title: Miniature speaker
- Patent Title (中): 微型扬声器
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Application No.: US14524087Application Date: 2014-10-27
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Publication No.: US09338534B2Publication Date: 2016-05-10
- Inventor: Zuncheng Zhang
- Applicant: Zuncheng Zhang
- Applicant Address: SG Singapore
- Assignee: AAC Technologies Pte. Ltd.
- Current Assignee: AAC Technologies Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: IPro, PLLC
- Agent Na Xu
- Priority: CN201420401961U 20140718
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R1/00 ; H04R7/00 ; H04R1/06 ; H04R9/02

Abstract:
A miniature speaker includes a frame having a sidewall including a first upper thinner portion and a first lower thicker portion, a magnetic circuit unit, a voice coil having a lead wire, and a diaphragm driven by the voice coil. The magnetic circuit unit has a yoke, a magnet mounted on the yoke, a pole plate attached to the magnet, and a magnetic gap. The yoke further includes a lower plate and a side extending from the lower plate, the side including a second thinner portion and a second lower thicker portion. A recess is accordingly formed by the thinner portions and the thicker portions for accommodating the lead wire of the voice coil. The recess defines a bottom formed by the thicker portions and an opening formed by the thinner portions thereby providing an enlarged space to the lead wire.
Public/Granted literature
- US20160021440A1 Miniature Speaker Public/Granted day:2016-01-21
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