Speaker

Patent metadata

Field	Value
Publication number	US-2016100254-A1
Application number	US-201514820663-A
Country	US
Kind code	A1
Filing date	Aug 7, 2015
Priority date	Oct 7, 2014
Publication date	Apr 7, 2016
Grant date	—

Abstract

A speaker includes: a diaphragm; and a damper configured to adjust vibration of the diaphragm and including a first and second metal plates having polarities that are different from each other and symmetrical with each other, wherein the damper further includes first and second deformation prevention members disposed on bottom surfaces of the first and second metal plates, respectively, and wherein first and second deformation prevention members protrude downward and extend along a major-axis direction of the diaphragm, and the first and second deformation members are configured to prevent deformation of diaphragm caused by a vertical load.

First claim

What is claimed is:

1 . A speaker comprising:
a diaphragm; and a damper configured to adjust vibration of the diaphragm and comprising a first and second metal plates having polarities that are different from each other and symmetrical with each other, wherein the damper further comprises first and second deformation prevention members disposed on bottom surfaces of the first and second metal plates, respectively, and wherein the first and second deformation prevention members protrude downward and extend along a major-axis direction of the diaphragm, and are configured to prevent deformation of the diaphragm caused by a vertical load.

2 . The speaker of claim 1 , wherein the first and second deformation prevention members are bent downward from inner edges of the first and second metal plates, respectively.

3 . The speaker of claim 1 , wherein each of the first and second deformation prevention members comprises at least one straight panel disposed to be parallel to each other along the major-axis direction.

4 . The speaker of claim 3 , wherein each of the first and second deformation prevention members further comprises a curved panel connected to the at least one straight panel.

5 . The speaker of claim 4 , wherein each of the first and second deformation prevention members comprises:
a plurality of straight panels; and a curved panel, wherein the plurality of straight panels are disposed to be parallel to each other along the major-axis direction.

6 . The speaker of claim 1 , wherein each of the first and second deformation prevention members comprises at least one protrusion which extends outward from opposite edges of a corresponding one of the first and second metal plates, and wherein the at least one protrusion comprises:
a plurality of protrusion surfaces which extend in a horizontal direction with respect to the first and second metal plates; and a plurality of protrusion pieces, each of plurality of protrusion pieces bent from a respective protrusion surface of the plurality of protrusion surfaces in a vertical direction with respect to the first and second metal plates.

7 . The speaker of claim 6 , wherein the plurality of protrusion surfaces are disposed to be spaced apart from one another at a regular interval, and wherein the plurality of protrusion pieces are disposed to be spaced apart from one another at the regular interval.

8 . The speaker of claim 6 , wherein the plurality of protrusion surfaces are disposed to be spaced apart from one another at an irregular interval, wherein the plurality of protrusion pieces are disposed to be spaced apart from each other at the irregular interval.

9 . The speaker of claim 1 , wherein each of the first and second deformation prevention members comprises:
a contact surface which comes into contact with the bottom surface of a corresponding one of the first and second metal plates; and a bending portion bent downward from the contact surface.

10 . The speaker of claim 9 , wherein the bending portion is formed in a panel shape.

11 . The speaker of claim 10 , wherein at least a part of the bending portion comprises a curved panel.

12 . The speaker of claim 1 , wherein the damper is formed integrally with the diaphragm.

13 . The speaker of claim 1 , wherein the damper is configured to prevent deformation of the diaphragm due to a vertical load in a center portion of the diaphragm along the major axis direction.

14 . A speaker comprising:
an oval-shaped diaphragm having a major axis and a minor axis; and a damper configured to adjust vibration of the diaphragm and having a first and second inner surfaces, wherein the damper comprises first and second deformation prevention members protruding from each of the first and second inner surfaces, respectively, in a direction perpendicular to a direction of the major-axis and extending in the direction of the major axis, and the first and second deformation members are configured to prevent deformation in the major-axis direction of the diaphragm.

15 . The speaker of claim 14 , wherein each of the first and second deformation prevention members comprises a plurality of panels disposed to be parallel to one another in the major-axis direction.

16 . The speaker of claim 15 , wherein each of the first and second deformation prevention members further comprises a curved panel protruding from the plurality of panels.

17 . The speaker of claim 15 , wherein each of the first and second deformation prevention members further comprises a plurality of protrusions, each of the plurality of protrusions having at least one separation portion.

18 . The speaker of claim 15 , wherein each of the plurality of protrusions comprises:
a protrusion surface which extends in a horizontal direction with respect to the damper; and a protrusion piece bent from the protrusion surface in a vertical direction with respect to the damper.

19 . The speaker of claim 17 , wherein the at least one separation portion is provided at a uniform interval from one another.

20 . The speaker of claim 17 , wherein the at least one separation portion is provided at a non-uniform interval from one another.

21 . The speaker of claim 15 , wherein the damper has a plate shape, is made with a metal material, and comprises:
a first damper; and a second damper having a different polarity from the first damper, and wherein the first damper and the second damper are symmetrical with each other.

22 . The speaker of claim 21 , wherein the first and second deformation prevention members are disposed in corresponding positions of the first damper and the second damper, respectively, to be parallel to each other.

23 . The speaker of claim 21 , wherein the first and second deformation prevention members are bent downward from an inner end of each of the first damper and the second damper, respectively, and are integrally formed with the first and second dampers, respectively.

24 . A speaker comprising:
a rectangular frame having a long axis and a short axis; a magnetic circuit unit coupled to the frame and configured to generate a magnetic force; a voice coil provided in the frame to vibrate due to the magnetic force; a diaphragm configured to vibrate and produce sound due to vibration of the voice coil; and a damper provided between the diaphragm and the voice coil and configured to adjust vibration of the diaphragm, wherein the damper has a plate shape, and comprises:
a first damper;
a second damper having a different polarity from the first damper; and
a first and second deformation prevention members provided in the first damper and the second damper, respectively, and extending along a long-axis direction of the diaphragm, the first and second deformation prevention members being configured to prevent a deformation of the diaphragm caused by a vertical load.

25 . The speaker of claim 24 , wherein the first and second deformation prevention members are bent from an inner edge of the first damper and the second damper, respectively, and
wherein the first and second deformation prevention members are integrally formed with the first and the second dampers, respectively.

26 . The speaker of claim 24 , wherein each of the first and second deformation prevention members comprises at least one straight panel, and the first and second deformation prevention members are disposed

Assignees

• Samsung Electronics Co Ltd

Inventors

• Bae Won Youl
• Kim Tae Myun
• Jo Jong In

Classifications

• H04R7/26 Primary

  Damping by means acting directly on free portion of diaphragm or cone (air damping H04R1/28) · CPC title

• H04R9/06

  Loudspeakers · CPC title

• H04R9/043 Primary

  Inner suspension or damper, e.g. spider (outer suspension or surround H04R7/16) · CPC title

• H04R9/045

  Mounting (H04R9/043 takes precedence) · CPC title

• H04R7/18 Primary

  at the periphery · CPC title