Sound production apparatus and electronic device

Patent metadata

Field	Value
Publication number	US-12432502-B2
Application number	US-202017999887-A
Country	US
Kind code	B2
Filing date	Nov 7, 2020
Priority date	May 25, 2020
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

Disclosed in the present disclosure are a sound production apparatus and an electronic device. The sound production apparatus comprises a holder, a vibration unit, an elastic member, and a damping member, wherein the elastic member connects the holder and the vibration unit, and the damping member is disposed on the elastic member. The technical solution of the present disclosure aims at preventing the elastic member from resonating with the vibration unit, thereby ensuring the vibration trajectory of the vibration unit, and ensuring the operation stability of the sound production apparatus.

First claim

What is claimed is:

1. A sound production apparatus comprising a holder, a vibration unit, an elastic member and a damping member,
wherein the elastic member connects the holder and the vibration unit, and the damping member is provided on the elastic member,
wherein at least part of the elastic member is a wound wire-like structure, the wound wire-like structure has a plurality of continuous line segments, and the damping member connects at least two of the line segments.

2. The sound production apparatus of claim 1 , wherein the elastic member comprises a first deformation area and a second deformation area, a deformation amount of the first deformation area is greater than a deformation amount of the second deformation area, and the damping member is provided at the first deformation area.

3. The sound production apparatus of claim 1 , wherein the damping member is elastically deformable.

4. The sound production apparatus of claim 1 , wherein the elastic member comprises:
a first connecting portion connected with the vibration unit;
a second connecting portion connected with the holder;
a deformation portion having one side connected to the first connecting portion and the other side connected to the second connecting portion; and
the damping member provided between the first connecting portion and the second connecting portion.

5. The sound production apparatus of claim 4 , wherein a first vibration gap is formed between the first connecting portion and the deformation portion, and the damping member is filled in the first vibration gap;
and a second vibration gap is formed between the second connecting portion and the deformation portion, and the damping member is filled in the second vibration gap;
and the deformation portion is a wound long strip structure, the deformation portion is provided with a third vibration gap, and the damping member is filled in the third vibration gap.

6. The sound production apparatus of claim 1 , wherein the elastic member comprises:
a first connecting portion connected with the vibration unit;
a second connecting portion connected with the holder; and
a deformation portion having one side connected to the first connecting portion and the other side connected to the second connecting portion, the first connecting portion is provided with at least two line segments, the damping member connects the at least two line segments of the first connecting portion, the second connecting portion is provided with at least two line segments, and the damping member connects the at least two line segments of the second connecting portion.

7. The sound production apparatus of claim 6 , wherein the deformation portion comprises a first end connected to one of the first connecting portion and the second connecting portion, and a second end connected to the other one of the first connecting portion and the second connecting portion, and a central area is provided between the first end and the second end;
wherein the first end extends to the central area in a straight line and/or a curve along a first direction to form a first deformation section,
wherein the first deformation section located in the central area extends to the second end in a straight line and/or a curve along a direction opposite to the first direction to form a second deformation section, and the first deformation section and the second deformation section are connected to form the deformation portion; and
wherein the deformation portion is defined to have a long axis and a short axis that are perpendicular to each other, the first connecting portion and the second connecting portion are spaced apart in a length direction of the short axis, and the damping member is positioned at the deformation portion and is disposed in a length direction of the long axis.

8. The sound production apparatus of claim 7 , wherein a plurality of damping members are provided, and the plurality of damping members are symmetrically arranged on both sides of the short axis in the length direction of the long axis.

9. The sound production apparatus of claim 7 , wherein a position where the first deformation section and the second deformation section are connected is defined as a center of the deformation portion, and the damping member is disposed at the center of the deformation portion.

10. The sound production apparatus of claim 9 , wherein a position where the first deformation section and the second deformation section are connected is defined as a center of the deformation portion, a plurality of damping members are provided, and the plurality of damping members are symmetrically disposed around the center of the deformation portion.

11. The sound production apparatus of claim 7 , wherein at least part of the first deformation section and at least part of the second deformation section are disposed adjacent to each other and form a deformation gap, and the damping member is filled in the deformation gap.

12. The sound production apparatus of claim 1 , wherein a plurality of damping members are provided, and the plurality of damping members are evenly distributed between the first connecting portion and the second connecting portion.

13. The sound production apparatus of claim 1 , wherein
the elastic member is an axisymmetric structure with a symmetric line, and in the case where a plurality of damping members are provided, the plurality of damping members are symmetrically arranged on both sides of the symmetric line.

14. The sound production apparatus of claim 1 , wherein the plurality of line segments of the wound wire-like structure include a first line segment and a second line segment, a line diameter of the second line segment is larger than a line diameter of the first line segment, and the damping member connects the first line segment and the second line segment,
wherein the second line segment is provided in a bending shape.

15. The sound production apparatus of claim 14 , wherein a plurality of first line segments and a plurality of second line segments are provided, the first line segments and the second line segments are configured to be alternately connected, and the damping member connects two of the first line segments adjacent to each other.

16. The sound production apparatus of claim 1 , wherein the material of the damping member comprises metal material, rubber material, silicone material, glue material or foam cotton material; and/or
the damping member is provided in a bump-like structure, a flat plate-like structure or an arc-shape structure.

17. The sound production apparatus of claim 1 , wherein the material of the damping member comprises a flexible material.

18. The sound production apparatus of claim 1 , wherein the vibration unit comprises a diaphragm and a voice coil connected with the diaphragm, and the elastic member connects the voice coil and the holder; or
the vibration unit comprises a diaphragm, a voice coil and a cup, the voice coil and the cup are disposed on the same side of the diaphragm, and the elastic member connects the cup and the holder;
and/or, the holder is a housing or a magnetic yoke.

19. An electronic device, comprising the sound production apparatus of claim 1 .

Assignees

• Goertek Inc

Inventors

• Liu Chunfa
• Yang Jianbin
• Wang Jianxin
• Qiang Shousong

Classifications

• H04R9/046

  Construction · CPC title

• H04R9/025 Primary

  Magnetic circuit · CPC title

• H04R1/288 Primary

  for loudspeaker transducers · CPC title

• H04R7/20

  Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands · CPC title

• H04R9/06 Primary

  Loudspeakers · CPC title