Speaker

Patent metadata

Field	Value
Publication number	US-9813819-B2
Application number	US-201615080364-A
Country	US
Kind code	B2
Filing date	Mar 24, 2016
Priority date	Jul 24, 2015
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A speaker is provided in the present disclosure. The speaker includes a membrane, a voice coil connected to the membrane, and a vibration part attached on the membrane. The membrane includes a main body and a periphery portion surrounding the main body. One of the vibration part and the main body includes a protrusion protruding away from the voice coil, and the other one of the vibration part and the main body includes a recess portion recessed towards the voice coil and corresponding to the protrusion.

First claim

What is claimed is:

1. A speaker, comprising:
a membrane comprising a main body and a periphery portion surrounding the main body;
a voice coil connected to the membrane; and
a vibration part attached on the membrane;
wherein one of the vibration part and the main body comprises a protrusion protruding away from the voice coil, and the other one of the vibration part and the main body comprises a recess portion recessed towards the voice coil and corresponding to the protrusion; wherein the vibration part is attached on a bottom surface of the membrane; and the protrusion is formed at the main body of the membrane, and the recess portion is formed at the vibration part.

2. The speaker of claim 1 , wherein the vibration part is attached on a top surface of the membrane; the protrusion is formed at the vibration part, and the recess portion is formed at the main body of the membrane.

3. The speaker of claim 1 , further comprising a magnetic system, wherein the magnetic system comprises a magnet and a pole plate attached on the magnet.

4. The speaker of claim 3 , wherein the pole plate comprises a groove corresponding to the recess portion, the groove is configured for receiving the recess portion during vibration of the membrane.

5. The speaker of claim 3 , wherein the pole plate comprises a through hole corresponding to the recess portion, the through hole is configured for receiving the recess portion during vibration of the membrane.

6. The speaker of claim 3 , wherein the magnetic system further comprises a yoke for receiving the magnet and the pole plate, the yoke comprises a bottom and a plurality of sidewalls extending perpendicularly from the bottom.

7. The speaker of claim 6 , wherein the magnet comprises a plurality of side surfaces facing the sidewalls of the yoke for forming magnetic gaps between the magnet and the yoke.

8. The speaker of claim 7 , wherein the voice coil is suspended in the magnetic gaps.

9. The speaker of claim 3 , further comprising a holder for holding the magnetic system, and the periphery portion of the membrane is adhered to an edge of the holder.

Assignees

• Zhang Rui
• Zhang Long
• Aac Technologies Pte Ltd

Inventors

• Zhang Rui
• Zhang Long

Classifications

• H04R2499/11

  Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's · CPC title

• H04S2420/01

  Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD] · CPC title

• H04R9/06

  Loudspeakers · CPC title

• H04R9/045 Primary

  Mounting (H04R9/043 takes precedence) · CPC title

• H04S7/00

  Indicating arrangements; Control arrangements, e.g. balance control · CPC title