US-20260129326-A1 - SPEAKER ASSEMBLIES AND EARPHONES

Abstract

A speaker assembly comprising a housing assembly and a bone conduction speaker is provided. The housing assembly includes a main housing, the main housing includes a bottom wall and a circumferential sidewall connected to the bottom wall to form an accommodation space with an open end, the 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. The bone conduction speaker includes a core shell 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.

Inventors

• Yueqiang Wang
• Junjiang FU
• Song You
• Yingying Zhang

Assignees

• Shenzhen Shokz Co., Ltd.

Dates

Publication Date

20260507

Application Date

20251230

Claims (20)

1. 1 . A speaker assembly comprising: a housing assembly including a main housing, the main housing including a bottom wall and a circumferential sidewall connected to the bottom wall to form an accommodation space with an open end, the circumferential sidewall including a first sidewall and a second sidewall disposed opposite to each other; the main housing further including 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 being provided with a first shaft mechanism and a second shaft mechanism, respectively; and a bone conduction speaker including a core shell disposed between the partition assembly and the second sidewall, wherein 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.
2. 2 . The speaker assembly of claim 1 , 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.
3. 3 . The speaker assembly of claim 2 , wherein the speaker assembly further includes an air conduction speaker disposed between the partition assembly and the first sidewall.
4. 4 . The speaker assembly of claim 3 , wherein the circumferential sidewall further includes a third sidewall and a fourth sidewall disposed opposite to each other and connected between the first sidewall and the second sidewall, the partition assembly includes a partition body connected between the third sidewall and the fourth sidewall to divide the accommodation space into a first sub-space between the partition body and the first sidewall and a second sub-space between the partition body and the second sidewall, the air conduction speaker is disposed within the first sub-space and a vibration direction of the air conduction speaker is toward or away from the first sidewall, a vibration direction of the bone conduction speaker is toward or away from the bottom wall, and a projection of the bone conduction speaker along the vibration direction of the bone conduction speaker falls into the second sub-space.
5. 5 . The speaker assembly of claim 4 , wherein the partition body includes a first body portion, a second body portion, and a third body portion disposed in sequence in a direction from the third sidewall to the fourth sidewall, and in a spacing direction of the first sidewall and the second sidewall, the second body portion is located farther away from the first sidewall than the first body portion and the third body portion.
6. 6 . The speaker assembly of claim 5 , wherein the partition body further includes a first connection portion connecting the first body portion and the second body portion and a second connection portion connecting the second body portion and the third body portion in the spacing direction of the first sidewall and the second sidewall, and an end portion of the air conduction speaker facing the second sidewall is embedded between the first connection portion and the second connection portion.
7. 7 . The speaker assembly of claim 6 , wherein the partition body further includes a third connection portion connecting the first body portion and the first sidewall and a fourth connection portion connecting the third body portion and the first sidewall along the spacing direction of the first sidewall and the second sidewall, the third connection portion and the fourth connection portion are disposed with a slot, respectively, and the air conduction speaker is provided with flange portions embedded in the slots.
8. 8 . The speaker assembly of claim 6 , wherein the first connection portion, the second connection portion, and the second body portion enclose a positioning space with a positioning function on a side of the first connection portion facing the first sidewall, a side of the second connection portion facing the first sidewall, and a side of the second body portion facing the first sidewall, and the end portion of the air conduction speaker facing the second sidewall is embedded in the positioning space.
9. 9 . The speaker assembly of claim 4 , wherein a size of the first sub-space along the spacing direction of the first sidewall and the second sidewall is less than a size of the second sub-space along the spacing direction of the first sidewall and the second sidewall.
10. 10 . The speaker assembly of claim 9 , wherein the air conduction speaker is inserted into the first sub-space from the open end of the main housing, and the vibration direction of the air conduction speaker is perpendicular to an insertion direction of the air conduction speaker relative to the first sub-space, and a size of the air conduction speaker along the vibration direction is less than a size of the air conduction speaker along a direction perpendicular to the vibration direction of the air conduction speaker.
11. 11 . The speaker assembly of claim 4 , wherein the partition assembly further includes an elastic arm connected to a side of the partition body away from the bottom wall, a size of the elastic arm along a spacing direction between the third sidewall and the fourth sidewall is smaller than a size of the partition body along the spacing direction between the third sidewall and the fourth sidewall, and the first shaft mechanism is disposed on the elastic arm.
12. 12 . The speaker assembly of claim 11 , wherein the partition body includes a first body portion, a second body portion, and a third body portion disposed in sequence in a direction from the third sidewall to the fourth sidewall, and the elastic arm is connected to the side of the second body portion away from the bottom wall.
13. 13 . The speaker assembly of claim 11 , wherein when the core shell is assembled with the main housing, the elastic arm elastically deforms in the spacing direction of the first sidewall and the second sidewall.
14. 14 . The speaker assembly of claim 11 , wherein the main housing and the partition assembly are integrally molded, the first shaft mechanism is a rotating shaft, and the third shaft mechanism is a rotating slot that receives the rotating shaft.
15. 15 . The speaker assembly of claim 11 , wherein the elastic arm further elastically abuts a side of the air conduction speaker away from the first sidewall.
16. 16 . 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, and 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.
17. 17 . The speaker assembly of claim 16 , 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.
18. 18 . The speaker assembly of claim 17 , wherein the first shaft mechanism and the second shaft mechanism are protrudingly disposed 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.
19. 19 . The speaker assembly of claim 18 , wherein the speaker assembly further includes a battery or a control circuit board disposed within the second sub-space, the battery supplies power to the air conduction speaker and the bone conduction speaker through the control circuit board, and the control circuit board is used to control the air conduction speaker and bone conduction speaker to vibrate.
20. 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