US-20260129349-A1 - SPEAKER ASSEMBLIES AND EARPHONES

US20260129349A1US 20260129349 A1US20260129349 A1US 20260129349A1US-20260129349-A1

Abstract

A speaker assembly is provided. The speaker assembly includes a housing assembly including a main housing, an air conduction speaker disposed within the main housing, and a bone conduction speaker rotatably supported on the main housing and being capable of rotating relative to the main housing along a preset rotation axis. A vibration direction of the air conduction speaker is parallel to the preset rotation axis, and a vibration direction of the bone conduction speaker is perpendicular to the preset rotation axis.

Inventors

Yueqiang Wang
Junjiang FU
Song You
Yingying Zhang

Assignees

Shenzhen Shokz Co., Ltd.

Dates

Publication Date: 20260507
Application Date: 20251230

Claims (20)

1 . A speaker assembly comprising: a housing assembly including a main housing; an air conduction speaker disposed within the main housing; and a bone conduction speaker rotatably supported on the main housing and being capable of rotating relative to the main housing along a preset rotation axis, wherein a vibration direction of the air conduction speaker is parallel to the preset rotation axis, and a vibration direction of the bone conduction speaker is perpendicular to the preset rotation axis.
2 . The speaker assembly of claim 1 , wherein the main housing includes a first bottom wall and a first circumferential sidewall connected to the first bottom wall to form a first accommodation space with an open end, the air conduction speaker and the bone conduction speaker are disposed within the first accommodation space from the open end of the main housing, a vibration direction of the air conduction speaker is toward or away from the first circumferential sidewall, and a vibration direction of the bone conduction speaker is toward or away from the first bottom wall.
3 . The speaker assembly of claim 2 , wherein each of the main housing and a core shell is provided with a shaft mechanism that is mounted in a detachable manner, and the core shell is rotatably supported on the main housing through the shaft mechanisms of the main housing and the core shell.
4 . The speaker assembly of claim 2 , wherein the first circumferential sidewall includes a first sidewall and a second sidewall disposed opposite to each other, the main housing further includes a partition assembly disposed between the first sidewall and the second sidewall and at least partially spaced apart from the first sidewall and the second sidewall, respectively, the partition assembly and the second sidewall are provided with a first shaft mechanism and a second shaft mechanism, respectively.
5 . The speaker assembly of claim 4 , wherein the core shell is disposed between the partition assembly and the second sidewall, a third shaft mechanism and a fourth shaft mechanism are respectively disposed on opposite sides of the core shell, the first shaft mechanism rotatably cooperates with the third shaft mechanism, and the second shaft mechanism rotatably cooperates with the fourth shaft mechanism, thereby rotatably supporting the core shell on the main housing.
6 . The speaker assembly of claim 4 , wherein the partition assembly is configured to elastically deform in a spacing direction between the first sidewall and the second sidewall when the core shell is assembled to the main housing, and an elastic deformation capacity of the partition assembly along the spacing direction between the first sidewall and the second sidewall is greater than an elastic deformation capacity of the first sidewall and the second sidewall along the spacing direction between the first sidewall and the second sidewall.
7 . The speaker assembly of claim 4 , wherein the air conduction speaker is disposed between the partition assembly and the first sidewall.
8 . The speaker assembly of claim 4 , wherein the housing assembly further includes a main cover body covering the open end of the main housing, the air conduction speaker is disposed with a first sound outlet, the first sound outlet is disposed facing the main cover body, and the main cover body is disposed with a second sound outlet corresponding to the first sound outlet.
9 . The speaker assembly of claim 8 , wherein the bone conduction speaker includes a transducer and a vibration plate, the transducer is disposed in the core shell, and the vibration plate is connected to the transducer.
10 . The speaker assembly of claim 9 , wherein the first shaft mechanism and the second shaft mechanism are protruded outside the open end of the main housing, the main cover body is disposed with an opening, and the core shell and the vibration plate are exposed through the opening of the main cover body.
11 . The speaker assembly of claim 9 , wherein in a wearing state, the vibration plate is in direct or indirect contact with a face region on a front side of a tragus of a user, and when viewed in a vibration direction of the vibration plate, the second sound outlet is disposed between the vibration plate and the tragus.
12 . The speaker assembly of claim 11 , wherein in the wearing state, the second sound outlet is disposed facing the human ear.
13 . The speaker assembly of claim 3 , wherein the bone conduction speaker further includes a lead, the core shell is disposed with a housing lead hole, and the lead extends into the core shell through the housing lead wire hole and is electrically connected to a transducer of the bone conduction speaker.
14 . The speaker assembly of claim 13 , wherein an extension direction of the housing lead hole intersects the preset rotation axis.
15 . The speaker assembly of claim 13 , wherein the speaker assembly further includes a control circuit board disposed between the first bottom wall and the core shell, and the lead connects the control circuit board.
16 . The speaker assembly of claim 3 , wherein the core shell includes a second bottom wall and a second circumferential sidewall connected to the second bottom wall to form a second accommodating space with an open end, and a transducer of the bone conduction speaker is disposed in the second accommodation space.
17 . The speaker assembly of claim 16 , wherein the second bottom wall is disposed facing the first bottom wall relative to the open end of the core shell, the housing lead hole is disposed in the second bottom wall, the shaft mechanism on the core shell is disposed on the second circumferential sidewall.
18 . The speaker assembly of claim 16 , wherein the bone conduction speaker includes a vibration plate, in a vibration direction of the vibration plate, a distance between the shaft mechanism of the core shell and the second bottom wall is less than a distance between the shaft mechanism of the core shell and the open end of the second accommodating space.
19 . The speaker assembly of claim 16 , wherein the shaft mechanism and the second bottom wall are arranged on the same plane.
20 . An earphone comprising the speaker assembly of claim 1 and a wearing assembly connected to the speaker assembly, the wearing assembly being configured to position the speaker assembly in a face region on a front side of a tragus of a user when the earphone is in a wearing state.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Continuation of International Patent Application No. PCT/CN2024/076067, filed on Feb. 5, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the technical field of sound generation device, and in particular to a speaker assembly and an earphone. BACKGROUND With a continuous popularization of electronic devices, the electronic devices have become indispensable social and entertainment tools in people's daily life. The electronic devices such as earphones and smart glasses have also been widely used in people's daily life, which are used in conjunction with cell phones, computers, and other terminal devices in order to facilitate the provision of an auditory feast for the user. Thus, how to improve a sound quality and a wearing comfort of the earphone and other electronic devices is an urgent problem at present. SUMMARY The present disclosure provides a speaker assembly comprising a housing assembly and a bone conduction speaker. The bone conduction speaker includes a core shell, a transducer, a vibration transmission face-fitting assembly, and an auxiliary face-fitting assembly. The housing assembly includes a main housing, the core shell is supported on the main housing, and the transducer is disposed inside the core shell. The vibration transmission face-fitting assembly includes a vibration plate connected to the transducer and contacts a face region on a front side of a tragus of a user when the speaker assembly is in a wearing state. The auxiliary face-fitting assembly includes a rigid support member and a soft fitting member, the rigid support member is connected to the core shell, and when viewed in a vibration direction of the vibration plate, the rigid support member is closed and surrounds a periphery of the vibration plate along a circumference of the vibration plate, and a width of the rigid support member on a side facing the tragus is smaller than a width of the rigid support member on a side away from the tragus. The soft fitting member is disposed on the rigid support member, the soft fitting member is provided with a notch on a side facing the tragus and partially surrounds the vibration plate along the circumference of the vibration plate, and the soft fitting member is configured to contact the face region at the periphery of the vibration plate when the speaker assembly is in the wearing state. In some embodiments, a ratio of the width of the rigid support member on the side facing the tragus to the width of the rigid support member on the side away from the tragus is less than or equal to 0.2. In some embodiments, the rigid support member is detachably connected to the core shell. In some embodiments, the rigid support member includes a support plate and an annular flange, the support plate is provided with a through hole, and the vibration plate is exposed through the through hole. The annular flange is disposed on a side of the support plate facing the core shell and surrounds a periphery of the through hole, and the annular flange is sleeved on a periphery of the core shell. An outer wall surface of the core shell and an inner wall surface of the annular flange are respectively provided with snap structures that cooperate with each other. In some embodiments, the bone conduction speaker further includes a first vibration transmission sheet, and the transducer is elastically suspended in the core shell through the first vibration transmission sheet. The vibration plate is independent from the core shell, the vibration transmission face-fitting assembly further includes a soft vibration transmission member fitted to a side of the vibration plate facing the face region, and a hardness of the soft vibration transmission member is greater than a hardness of the soft fitting member. When the speaker assembly is in a free state, a side of the soft fitting member facing the face region protrudes from a side of the soft vibration transmission member facing the face region. In some embodiments, the speaker assembly further includes an air conduction speaker disposed within the housing assembly. The air conduction speaker is provided with a first sound outlet, the housing assembly is provided with a second sound outlet corresponding to the first sound outlet, and when viewed in the vibration direction of the vibration plate, the second sound outlet is disposed between the vibration plate and the tragus and is at least partially disposed at a periphery of the rigid support member. In some embodiments, the housing assembly further includes a main cover body, the main housing is configured to form an accommodation space with an open end, the main cover body is covered on the open end of the main housing, the air conduction speaker is disposed within the accommodation space, the second sound outlet is disposed on the main cover body, and the main cover body is provided