Acoustic diaphragm and speaker box

Patent metadata

Field	Value
Publication number	US-9716951-B2
Application number	US-201514928408-A
Country	US
Kind code	B2
Filing date	Oct 30, 2015
Priority date	Feb 2, 2015
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A speaker box with side acoustic emission structure is disclosed. The speaker box has a cabinet having an acoustic window, a speaker unit mounted in the cabinet and including a diaphragm, a voice coil and a magnetic circuit, the diaphragm disposed in the side of the acoustic window and not faced to the acoustic window and having a dome and a suspension surrounding the dome, the dome having a plurality of reinforcements aligned in multi-row, the area of one of the plurality of reinforcements which is closest to the acoustic window that is maximum for improving vibration of the diaphragm.

First claim

What is claimed is:

1. A speaker box, comprising:
a case having a bottom wall, a sidewall extending upwardly and perpendicularly form the bottom wall, and an acoustic window formed in the sidewall;
a speaker unit mounted in the case and having a diaphragm positioned below the bottom wall of the case for forming an acoustic passage communicating with the acoustic window, a voice coil, and a magnetic circuit driving the diaphragm to vibrate;
the diaphragm having a dome and a suspension surrounding the dome, the dome having a first reinforcement configured in one row, and a second reinforcement configured in other row paralleled to the first reinforcement, the area of the first reinforcement greater than that of the second reinforcement in plan view.

2. The speaker box as claimed in claim 1 , wherein the first reinforcement is close to the acoustic window of the case, and the second reinforcement is far away from the acoustic window of the case.

3. The speaker box as claimed in claim 2 , wherein the first reinforcement and the second reinforcement both are designed in the state of being convex or concave.

4. The speaker box as claimed in claim 3 , wherein the dome includes a flat portion is integrated with the suspension, a reinforced board attached and substantially coving the flat portion.

5. The speaker box as claimed in claim 4 , wherein the first reinforcement and the second reinforcement both are extending and protruding upwardly or downwardly from the reinforced board.

6. The speaker box as claimed in claim 5 , wherein the first reinforcement is not overlapped the second reinforcement along a direction parallel to the diaphragm.

7. The speaker box as claimed in claim 6 , wherein shapes of the first and second reinforcements are an oval in a planar view.

8. The speaker box as claimed in claim 6 , wherein shapes of the first and second reinforcements are a rectangle in a planar view.

9. The speaker box as claimed in claim 6 , wherein shapes of the first and second reinforcements are a hemisphere.

10. The speaker box as claimed in claim 6 , wherein shapes of the first and second reinforcement are a straight bar.

11. A speaker box, comprising:
a cabinet having an acoustic window with side acoustic emission structure;
a speaker unit mounted in the cabinet and including a diaphragm, a voice coil and a magnetic circuit;
the diaphragm disposed in the side of the acoustic window and not faced to the acoustic window, the diaphragm having a dome and a suspension surrounding the dome, the dome having a plurality of reinforcements aligned in multi-row, the area of one of the plurality of reinforcements which is closest to the acoustic window that is maximum.

12. The speaker box as claimed in claim 11 , wherein the area of the plurality of reinforcements aligned in multi-row is gradually reduced along a direction far away from the acoustic window.

13. The speaker box as claimed in claim 12 , wherein the plurality of reinforcements is designed in the state of being convex or concave.

14. The speaker box as claimed in claim 13 , wherein the dome includes a flat portion is integrated with the suspension, a reinforced board attached and substantially coving the flat portion.

15. The speaker box as claimed in claim 14 , wherein the plurality of reinforcements are extending and protruding upwardly or downwardly from the reinforced board.

16. The speaker box as claimed in claim 15 , wherein each of the plurality of reinforcements is not overlapped with adjacent reinforcement of another row.

17. The speaker box as claimed in claim 16 , wherein the cabinet includes a case and a cover, the case having a bottom wall and a sidewall extending sidewall extending upwardly and perpendicularly form the bottom wall, and the acoustic window formed in the sidewall.

18. The speaker box as claimed in claim 17 , wherein the diaphragm is positioned below the bottom wall of the case for forming an acoustic passage for communicating with the acoustic window.

19. The speaker box as claimed in claim 18 , wherein the plurality of reinforcements includes a first reinforcement configured in one row, and a second reinforcement configured in other row paralleled to the first reinforcement.

20. The speaker box as claimed in claim 19 , wherein shapes of the plurality of reinforcements are an oval or a rectangle or a hemisphere or a straight bar.

Assignees

• Aac Technologies Pte Ltd

Inventors

• Cai Bin
• Xu Yunxia

Classifications

• H04R7/14 Primary

  corrugated, pleated or ribbed · CPC title

• H04R1/021

  incorporating only one transducer · CPC title