US-20260129351-A1 - EARPHONES

US20260129351A1US 20260129351 A1US20260129351 A1US 20260129351A1US-20260129351-A1

Abstract

The present disclosure provides an earphone including a housing assembly, an air-conduction speaker, and a bone-conduction speaker. The housing assembly includes a first housing and a second housing. The second housing engages with the first housing, and the first housing and the second housing mate with each other to form a first accommodating cavity and a second accommodating cavity. The air-conduction speaker is disposed in the first accommodating cavity. The bone-conduction speaker is disposed in the second accommodating cavity. The second housing is configured to contact a face of a user in a wearing state, and an engagement seam between the first housing and the second housing does not contact the face of the user.

Inventors

Zhao XIE
Shuailin XIE

Assignees

Shenzhen Shokz Co., Ltd.

Dates

Publication Date: 20260507
Application Date: 20251230

Claims (20)

1 . An earphone, comprising: a housing assembly, comprising a first housing and a second housing, wherein the second housing engages with the first housing; and the first housing and the second housing mate with each other to form a first accommodating cavity and a second accommodating cavity; an air-conduction speaker, disposed in the first accommodating cavity; and a bone-conduction speaker, disposed in the second accommodating cavity, wherein the second housing is configured to contact a face of a user in a wearing state, and an engagement seam between the first housing and the second housing does not contact the face of the user.
2 . The earphone according to claim 1 , wherein the first housing comprises a first sub-accommodating cavity and a second sub-accommodating cavity, the first sub-accommodating cavity being at least a part of the first accommodating cavity and the second sub-accommodating cavity being at least a part of the second accommodating cavity; the first sub-accommodating cavity comprises a first opening, the second sub-accommodating cavity comprises a second opening, and an axial direction of the first opening and an axial direction of the second opening form an angle.
3 . The earphone according to claim 2 , wherein the second housing comprises a main portion and an extension portion, and the main portion and the extension portion form an integral structure; the main portion covers the first opening and mates with the first housing to form the first accommodating cavity, and the extension portion covers the second opening and mates with the first housing to form the second accommodating cavity.
4 . The earphone according to claim 2 , wherein at least a part of the air-conduction speaker is disposed in the first sub-accommodating cavity through the first opening; at least a part of the bone-conduction speaker is disposed in the second sub-accommodating cavity through the second opening; an axial direction of the air-conduction speaker is the same as the axial direction of the first opening; and an axial direction of the bone-conduction speaker is the same as the axial direction of the second opening.
5 . The earphone according to claim 4 , wherein the axial direction of the first opening is perpendicular to the axial direction of the second opening.
6 . The earphone according to claim 3 , wherein an outer contour of the main portion is frustum-shaped, and a cross-section of the extension portion in a plane perpendicular to an extension direction of the extension portion is C-shaped; and/or in a direction perpendicular to both a vibration direction of the air-conduction speaker and a vibration direction of the bone-conduction speaker, a shape of a projection of the second housing is L-shaped.
7 . The earphone according to claim 1 , wherein the first housing comprises a main housing and a first annular flange, wherein the main housing comprises a bottom wall portion and an annular side wall portion connected to each other; the first annular flange is protrudingly disposed on an outer side of the annular side wall portion; the bottom wall portion and the annular side wall portion enclose at least a part of the second accommodating cavity; and the first annular flange and a part of the annular side wall portion form at least a part of the first accommodating cavity.
8 . The earphone according to claim 7 , wherein an inner surface of the first annular flange is provided with a first step portion; the first step portion being configured to support a bottom end surface of the air-conduction speaker facing the annular side wall portion; and the annular side wall portion is provided with a first groove included in the first accommodating cavity.
9 . The earphone according to claim 7 , wherein an inner surface of the annular side wall portion is provided with a second step portion; the second step portion being configured to support a bottom end surface of the bone-conduction speaker facing the bottom wall portion; and the bottom wall portion is provided with a second groove included in the second accommodating cavity.
10 . The earphone according to claim 7 , wherein the first annular flange comprises an annular wall and a semi-enclosed portion, the annular wall being configured to form the first accommodating cavity; along the vibration direction of the bone-conduction speaker, the semi-enclosed portion encloses an outer side of the annular wall close to the bottom wall portion; and a part of an outer surface of the annular wall close to the semi-enclosed portion is configured to engage with the second housing, and an end surface of the semi-enclosed portion facing the second housing is configured to engage with the second housing.
11 . The earphone according to claim 10 , wherein the annular side wall portion comprises a first side wall portion and a second side wall portion connected to each other, and the first annular flange is protrudingly disposed on an outer side of the first side wall portion; and an end surface of the annular side wall portion and the end surface of the semi-enclosed portion are smoothly connected to form a first annular curved surface, and the end surface of the annular side wall portion is configured to engage with the second housing.
12 . The earphone according to claim 10 , wherein the end surface of the semi-enclosed portion gradually moves away from an end surface of the annular wall along a direction along a depth direction of the first accommodating cavity and toward the second accommodating cavity.
13 . (canceled)
14 . The earphone according to claim 10 , wherein on a side away from the second accommodating cavity, a first limit block is protrudingly disposed on the end surface of the annular wall; and the second housing is provided with a corresponding first limit groove, the first limit block being clamped in the first limit groove.
15 . (canceled)
16 . The earphone according to claim 10 , wherein along the vibration direction of the bone-conduction speaker and on a side close to the second accommodating cavity, a support block is disposed on an outer surface of the annular wall, the support block being configured to support the second housing.
17 . The earphone according to claim 16 , wherein a plurality of support blocks are arranged in a spaced manner; and/or as gradually approaching the second accommodating cavity, heights of the plurality of support blocks on the outer surface of the annular wall gradually increase; and/or an inner surface of the second housing is provided with a third groove, the third groove being configured to mate with the support block.
18 . The earphone according to claim 10 , wherein along the vibration direction of the bone-conduction speaker and on a side close to the second accommodating cavity, a protrusion is disposed on the outer surface of the annular wall; and the protrusion extends circumferentially along the annular wall, an inner surface of the second housing is provided with a fourth groove, and the protrusion mates with the fourth groove.
19 . (canceled)
20 . The earphone according to claim 10 , wherein at least on a side away from the semi-enclosed portion, the end surface of the annular wall and the outer surface of the annular wall are connected by a chamfered surface.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN2024/084204 filed on Mar. 27, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the field of electronic devices, and in particular, to an earphone. BACKGROUND With the continuous popularization of electronic devices, the electronic devices have become indispensable social and entertainment tools in people's daily lives, and people's requirements for the electronic devices are also increasing. The electronic devices such as earphones and smart glasses have been widely used in people's daily lives. They may be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast. However, current earphone housings generally use an assembly structure, which may result in an engagement seam in the area where the earphone fits the face of the user. Moreover, during daily use, the engagement seam of the earphone housing may pinch the face of the user, and sweat from the face of the user may enter the earphone through the engagement seam, affecting the electronic components inside the earphone. SUMMARY To this end, the present disclosure provides an earphone, which can solve the problems in the prior art that the engagement seam of the earphone housing may pinch the face of the user and sweat may enter the earphone through the engagement seam during use. One or more embodiments of the present disclosure provide an earphone. The earphone includes a housing assembly, an air-conduction speaker, and a bone-conduction speaker. The housing assembly includes a first housing and a second housing. The second housing engages with the first housing. The first housing and the second housing mate with each other to form a first accommodating cavity and a second accommodating cavity. The air-conduction speaker is disposed in the first accommodating cavity. The bone-conduction speaker is disposed in the second accommodating cavity. The second housing is configured to contact a face of a user in a wearing state, and an engagement seam between the first housing and the second housing does not contact the face of the user. By controlling the engagement seam of the housing assembly not to contact the face of the user, the risk of the engagement seam of the housing assembly pinching the face of the user can be reduced, and additionally, the risk of sweat from the face of the user entering the housing assembly through the engagement seam can be further reduced. In some embodiments, the first housing includes a first sub-accommodating cavity and a second sub-accommodating cavity. The first sub-accommodating cavity is at least a part of the first accommodating cavity. The second sub-accommodating cavity is at least a part of the second accommodating cavity. The first sub-accommodating cavity includes a first opening. The second sub-accommodating cavity includes a second opening. An axial direction of the first opening and an axial direction of the second opening form an angle. In some embodiments, the second housing includes a main portion and an extension portion, and the main portion and the extension portion form an integral structure. The main portion covers the first opening and mates with the first housing to form the first accommodating cavity, and the extension portion covers the second opening and mates with the first housing to form the second accommodating cavity. In some embodiments, at least a part of the air-conduction speaker is disposed in the first sub-accommodating cavity through the first opening. At least a part of the bone-conduction speaker is disposed in the second sub-accommodating cavity through the second opening. An axial direction of the air-conduction speaker is the same as the axial direction of the first opening. An axial direction of the bone-conduction speaker is the same as the axial direction of the second opening. In some embodiments, the axial direction of the first opening is perpendicular to the axial direction of the second opening. In some embodiments, an outer contour of the main portion is frustum-shaped, and a cross-section of the extension portion in a plane perpendicular to an extension direction of the extension portion is C-shaped; and/or in a direction perpendicular to both a vibration direction of the air-conduction speaker and a vibration direction of the bone-conduction speaker, a shape of a projection of the second housing is L-shaped. In some embodiments, the first housing includes a main housing and a first annular flange. The main housing includes a bottom wall portion and an annular side wall portion connected to each other. The first annular flange is protrudingly disposed on an outer side of the annular side wall portion. The bottom wall portion and the annular side wall portion enclose at least a part of the second accommodating cavity. The first