Damper and sound-producing device

Patent metadata

Field	Value
Publication number	US-12149909-B2
Application number	US-202017773352-A
Country	US
Kind code	B2
Filing date	Nov 5, 2020
Priority date	Nov 8, 2019
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

Disclosed are a damper and a sound-producing device. The damper includes a first connecting part, a planar elastic part and a second connecting part. One side of the first connecting part is configured to cooperatively connect to a voice coil of the sound-producing device; an end of the first connecting part is bent and extends in an S shape toward the other side of the first connecting part to form the planar elastic part, the planar elastic part and the first connecting part being in the same plane; the second connecting part is connected to one end of the planar elastic part away from the first connecting part, and the second connecting part is configured to be fixedly connected in the sound-producing device; and the damper is a line-like structure formed by integral winding.

First claim

The invention claimed is:

1. A damper, comprising:
a first connecting part having a first side configured to cooperatively connect to a voice coil of a sound-producing device;
a first planar elastic part formed by first end of the first connecting part being bent and extending in an S shape toward a second side of the first connecting part, the first planar elastic part and the first connecting part provided in the same plane; and
a second connecting part connected to a second end of the first planar elastic part distal to the first connecting part, and configured to be fixedly connected to the sound-producing device;
wherein the damper is a line structure formed by integral winding,
wherein the second end of the first planar elastic part is bent into a hook structure to form the second connecting part.

2. The damper of claim 1 , wherein the first connecting part, the first planar elastic part and the second connecting part comprise metal material.

3. The damper of claim 2 , wherein the metal material is any one of phosphor bronze, iron, steel or alloy material.

4. The damper of claim 1 , further comprising a second planar elastic part formed by a second end of the first connecting part being bent and extending in an S shape.

5. The damper of claim 4 , wherein the first connecting part is in the shape of an arc between the first and second planar elastic parts.

6. The damper of claim 4 , wherein the first connecting part is in the shape of a broken line between the first and second planar elastic parts.

7. The damper of claim 1 , wherein the second connecting part comprises one loop of the hook structure; or
the second connecting part comprises at least two loops of the hook structure having overlapped orthographic projections in the vertical direction.

8. The damper of claim 1 , wherein a width of the first planar elastic part gradually increases along a direction from the first connecting part to the second connecting part, with extension lines of two sides of the first planar elastic part in its width direction intersecting at a point in a direction in which the first connecting part faces away from the second connecting part and forming an acute angle.

9. The damper of claim 8 , wherein the acute angle is no less than 10°.

10. A device, comprising:
a vibration system, comprising a combination of a diaphragm, the voice coil, a voice coil bobbin and the damper of claim 1 ;
a magnetic circuit system having a magnetic gap in which the voice coil is suspended; and
a casing, configured to house the vibration system and the magnetic circuit system;
wherein the voice coil is wound on the voice coil bobbin, the diaphragm is connected to one end of the voice coil bobbin, the first connecting part of the damper is connected to an outer side wall of the voice coil bobbin or to a root region of the voice coil, and the second connecting part of the damper is fastened to the casing.

Assignees

• Goertek Inc

Inventors

• Yang Jianbin
• Qiang Shousong
• Liu Chunfa

Classifications

• H04R9/046

  Construction · CPC title

• H04R7/04

  Plane diaphragms · CPC title

• H04R7/18

  at the periphery · CPC title

• H04R9/06

  Loudspeakers · CPC title

• H04R2499/11

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