Speaker and terminal device

Patent metadata

Field	Value
Publication number	US-11924620-B2
Application number	US-202117524996-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	May 15, 2019
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

This disclosure provides a speaker and a terminal device. The speaker includes a speaker housing and a speaker body, where the speaker body is disposed in the speaker housing, the speaker body and the speaker housing form a speaker front cavity and a speaker rear cavity, the speaker housing is provided with a sound output channel, the sound output channel communicates with the speaker front cavity, the speaker rear cavity includes a first sub-cavity, the speaker housing includes a first spacer disposed in the first sub-cavity, the first spacer splits the first sub-cavity into a resonance tube and a resonance cavity, the resonance tube communicates with the resonance cavity, a first connecting hole is provided in a side wall of the speaker front cavity, and the speaker front cavity communicates with the resonance tube through the first connecting hole.

First claim

What is claimed is:

1. A speaker, comprising a speaker housing and a speaker body, wherein the speaker body is disposed in the speaker housing, the speaker body and the speaker housing form a speaker front cavity and a speaker rear cavity, the speaker housing is provided with a sound output channel, the sound output channel communicates with the speaker front cavity, the speaker rear cavity comprises a first sub-cavity, the speaker housing comprises a first spacer disposed in the first sub-cavity, the first spacer splits the first sub-cavity into a resonance tube and a resonance cavity, the resonance tube communicates with the resonance cavity, a first connecting hole is provided in a side wall of the speaker front cavity, and the speaker front cavity communicates with the resonance tube through the first connecting hole;
wherein the speaker housing comprises a first housing and a second housing, the first housing is provided with the sound output channel, the speaker body is disposed between the first housing and the second housing, the speaker body and the first housing form the speaker front cavity, the first housing is detachably connected to the second housing, and the first housing, the second housing, and the speaker body enclose at least a part of the speaker rear cavity;
wherein the first housing comprises a bottom wall, and a first side wall and a second side wall that are disposed on the bottom wall, the second side wall is disposed in an area surrounded by the first side wall, the speaker body is fastened between the second side wall and the second housing, the speaker body is supported on the bottom wall through the second side wall, the speaker body, the second side wall, and the bottom wall form the speaker front cavity, the speaker body, the first side wall, the second housing, the bottom wall, and the second side wall enclose the speaker rear cavity, and the second side wall is provided with the first connecting hole.

2. The speaker according to claim 1 , wherein a first end of the first spacer is connected to a first inner wall of the first sub-cavity, a second end of the first spacer extends towards a second inner wall of the first sub-cavity, the first inner wall is an inner wall close to the speaker front cavity, the first inner wall is disposed opposite the second inner wall, a second connecting hole is formed between the second end of the first spacer and the second inner wall, and the resonance cavity communicates with the resonance tube through the second connecting hole.

3. The speaker according to claim 1 , wherein the first housing comprises a second spacer; the second spacer is connected to an outer side of the second side wall; the second spacer is disposed between the second side wall and the first side wall; the first spacer is disposed in an area enclosed by the second spacer and the second side wall; and the bottom wall, the second spacer, the second side wall, and the second housing enclose the first sub-cavity.

4. The speaker according to claim 1 , wherein the first housing further comprises a top wall, a sealing sheet, and a second spacer, the second spacer is connected to an outer side of the second side wall, the second spacer is disposed between the second side wall and the first side wall, the first spacer is disposed in an area enclosed by the second spacer and the second side wall, the top wall covers an area enclosed by the second spacer and the second side wall, an opening is provided in an area, opposite the top wall, of the bottom wall, the sealing sheet hermetically covers the opening, and the sealing sheet, the top wall, the second spacer, and the second side wall enclose the first sub-cavity.

5. The speaker according to claim 4 , wherein a distance between a surface of the top wall facing the opening and the bottom wall is a first distance, the second side wall is provided with a communication groove, the bottom wall and the communication groove enclose the first connecting hole, a distance between a bottom surface of the communication groove facing the bottom wall and the bottom wall is a second distance, and the first distance is smaller than the second distance.

6. The speaker according to claim 5 , wherein an edge of the top wall connected to an end opening of the first connecting hole is provided with a chamfered surface.

7. The speaker according to claim 4 , wherein the sealing sheet is coplanar with an outer surface of the bottom wall.

8. The speaker according to claim 4 , wherein the sealing sheet is a plastic sheet, a steel sheet or a polyethylene terephthalate (PET) sheet.

9. The speaker according to claim 1 , wherein an adhesive layer is provided on an inner surface of the first side wall, and the speaker body is adhesively fixed to the first housing.

10. The speaker according to claim 1 , wherein a first end of the resonance tube and a first end of the resonance cavity are isolated from each other, and a second end of the resonance tube and a second end of the resonance cavity communicate with each other.

11. A terminal device, comprising a speaker, wherein the speaker comprises a speaker housing and a speaker body, wherein the speaker body is disposed in the speaker housing, the speaker body and the speaker housing form a speaker front cavity and a speaker rear cavity, the speaker housing is provided with a sound output channel, the sound output channel communicates with the speaker front cavity, the speaker rear cavity comprises a first sub-cavity, the speaker housing comprises a first spacer disposed in the first sub-cavity, the first spacer splits the first sub-cavity into a resonance tube and a resonance cavity, the resonance tube communicates with the resonance cavity, a first connecting hole is provided in a side wall of the speaker front cavity, and the speaker front cavity communicates with the resonance tube through the first connecting hole;
wherein the speaker housing comprises a first housing and a second housing, the first housing is provided with the sound output channel, the speaker body is disposed between the first housing and the second housing, the speaker body and the first housing form the speaker front cavity, the first housing is detachably connected to the second housing, and the first housing, the second housing, and the speaker body enclose at least a part of the speaker rear cavity;
wherein the first housing comprises a bottom wall, and a first side wall and a second side wall that are disposed on the bottom wall, the second side wall is disposed in an area surrounded by the first side wall, the speaker body is fastened between the second side wall and the second housing, the speaker body is supported on the bottom wall through the second side wall, the speaker body, the second side wall, and the bottom wall form the speaker front cavity, the speaker body, the first side wall, the second housing, the bottom wall, and the second side wall enclose the speaker rear cavity, and the second side wall is provided with the first connecting hole.

12. The terminal device according to claim 11 , wherein a first end of the first spacer is connected to a first inner wall of the first sub-cavity, a second end of the first spacer extends towards a second inner wall of the first sub-cavity, the first inner wall is an inner wall close to the speaker front cavity, the first inner wall is disposed opposite the second inner wall, a second connecting hole is formed between the second end of the first spacer and the second inner wall, and the resonance cavity communicates with the resonance tube through the second connecting hole.

13. The terminal device according to claim 11 , wherein the first housing comprise

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Jiang Guozhu
• Long Lifeng

Classifications

• H04R9/06 Primary

  Loudspeakers · CPC title

• H04R1/025

  Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture · CPC title

• H04R9/18

  Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency · CPC title

• H04R1/2873 Primary

  for loudspeaker transducers · CPC title

• H04R2499/11

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