Vibration speaker

Patent metadata

Field	Value
Publication number	US-9591391-B2
Application number	US-201514742833-A
Country	US
Kind code	B2
Filing date	Jun 18, 2015
Priority date	Jan 12, 2012
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A vibration speaker is disclosed. The vibration speaker includes: a display screen including a first surface and a second surface opposite to the first surface; a vibrator disposed below the display screen with vibration direction perpendicular to the display screen; a cover including a lower cover and an upper cover assembled with the lower cover for forming a receiving space to receive the display screen and the vibrator; an elastic member comprising an inner end attached to the display screen, an outer end disposed between the lower cover and the upper cover, and a connecting part disposed between the inner end and the outer end and concaved towards the lower cover; wherein the display screen is actuated to vibrate and generate sound by the vibration of the vibrator.

First claim

What is claimed is:

1. A vibration speaker, comprising:
a display screen including a first surface and a second surface opposite to the first surface;
a vibrator disposed below the display screen with vibration direction perpendicular to the display screen;
a cover including a lower cover and an upper cover assembled with the lower cover for forming a receiving space to receive the display screen and the vibrator;
an elastic member comprising an inner end attached to the display screen, an outer end disposed between the lower cover and the upper cover, and a connecting part disposed between the inner end and the outer end for connecting the inner end to the outer end, the connecting part concaved towards the lower cover; wherein
the display screen is actuated to vibrate and generate sound by the vibration of the vibrator.

2. The vibration speaker as described in claim 1 comprising two vibrators disposed at two sides of the display screen.

3. The vibration speaker as described in claim 2 , wherein the vibrator is an electromagnetic vibrator including a vibrating unit and a magnetic circuit unit.

4. The vibration speaker as described in claim 3 , wherein the vibrating unit includes an elastic plate and a weight disposed on the elastic plate, the magnetic circuit unit includes a yoke, a magnetic core disposed on the yoke and including a protruding portion passing through the yoke, a pair of magnets disposed at two ends of the yoke, a coil surrounding the magnetic core and disposed in a magnetic gap formed by the magnetic core and the magnets.

5. The vibration speaker as described in claim 4 , wherein the elastic plate including a vibrating plate supporting the weight, a pair of position plates supporting the yoke, and a pair of connecting plates connecting the vibrating plate to the position plates.

6. The vibration speaker as described in claim 5 , wherein the weight attaches to the second surface of the display screen.

7. The vibration speaker as described in claim 1 comprising four vibrators disposed under the display screen and forming an arrangement of central symmetry.

8. The vibration speaker as described in claim 1 further comprising a chamber for receiving the vibrator.

9. A vibration speaker, comprising:
a panel including a first surface disposed outside and a second surface opposite to the first surface;
at least two vibrators symmetrically attached to the second surface of the panel with the vibration direction perpendicular to the screen;
a cover including an upper cover, a lower cover assembled with the upper cover and together forming a receiving space to receive the panel and the vibrators;
an elastic member comprising an inner end attached to the display screen, an outer end disposed between the lower cover and the upper cover, and a connecting part disposed between the inner end and the outer end for connecting the inner end to the outer end, the connecting part concaved towards the lower cover; wherein
the vibrators are supported by the lower cover and the panel is actuated to vibrate and generate sound by the vibration of the vibrators.

10. The vibration speaker as described in claim 9 , wherein the vibrator is an electromagnetic vibrator including a vibrating unit and a magnetic circuit unit.

11. The vibration speaker as described in claim 10 , wherein the vibrating unit includes an elastic plate and a weight disposed on the elastic plate, the magnetic circuit unit includes a yoke, a magnetic core disposed on the yoke and including a protruding portion passing through the yoke, a pair of magnets disposed at two ends of the yoke, a coil surrounding the magnetic core and disposed in a magnetic gap formed by the magnetic core and the magnets.

12. The vibration speaker as described in claim 11 , wherein the elastic plate including a vibrating plate supporting the weight, a pair of position plates supporting the yoke, and a pair of connecting plates connecting the vibrating plate to the position plates.

13. The vibration speaker as described in claim 12 , wherein the weight attaches to the second surface of the display screen.

14. The vibration speaker as described in claim 9 further comprising a chamber for receiving the vibrator.

Assignees

• Liu Lin
• He Jie
• Wang Hongxing
• Zhou Rongguan
• Tang Yun
• Li Gang
• Peng Yuanxiao
• Aac Acoustic Tech (Shenzhen) Co Ltd

Inventors

• Liu Lin
• He Jie
• Wang Hongxing
• Zhou Rongguan
• Tang Yun
• Li Gang
• Peng Yuanxiao

Classifications

• H04R2499/11

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

• H04R7/045 Primary

  using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion · CPC title

• H04R2400/03

  Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones · CPC title

• H04R17/00

  Piezoelectric transducers; Electrostrictive transducers (piezoelectric or electrostrictive elements in general H10N30/00; details of piezoelectric or electrostrictive motors, generators or positioners {H10N30/00}) · CPC title

• H04R1/028 Primary

  associated with devices performing functions other than acoustics, e.g. electric candles · CPC title