US-20260129341-A1 - EARPHONES

US20260129341A1US 20260129341 A1US20260129341 A1US 20260129341A1US-20260129341-A1

Abstract

An earphone comprises a core module located at a front side of an ear in a wearing state and a hook structure at least a portion of which is located at a rear side of the ear in the wearing state. In a non-wearing state and along a thickness direction of the hook structure, the hook structure extends toward a side of the inner side surface of the core module away from the outer side surface of the core module, so that a portion of the hook structure is offset relative to a projection of the core module along a direction perpendicular to the thickness direction. Then, the portion of the hook structure extends toward a side of the inner side surface toward the outer side surface, which allows the other portion of the hook structure to overlap with the projection of the core module.

Inventors

Zeying ZHENG
Jiang Xu
Tao Zhao

Assignees

Shenzhen Shokz Co., Ltd.

Dates

Publication Date: 20260507
Application Date: 20251229

Claims (20)

1 . An earphone, comprising: a core module; and a hook structure connected to the core module, wherein the core module is located at a front side of an ear in a wearing state, at least a portion of the hook structure is located at a rear side of the ear, in the wearing state, the core module has an inner side surface toward the ear along a thickness direction and an outer side surface away from the ear along the thickness direction, the thickness direction being defined as a direction in which the core module is close to or away from the ear in the wearing state, the hook structure includes an elastic metal wire connected to the core module and a battery shell connected to one end of the elastic metal wire away from the core module, a battery electrically connected to the core module is arranged in the battery shell, in a non-wearing state, at least a portion of the battery shell is arranged between the inner side surface and the outer side surface along the thickness direction, and in the wearing state, the battery shell is in contact with the rear side of the ear or a head.
2 . The earphone of claim 1 , wherein the core module includes a connection end connected to the hook structure and a free end not connected to the hook structure, in the wearing state, the free end extends into a concha cavity of the ear.
3 . The earphone of claim 2 , wherein the core module includes a core shell connected to the hook structure and a speaker arranged in the core shell, a sound outlet hole being arranged on one side of the core shell toward the ear in the wearing state, sound waves generated by the speaker being propagated through the sound outlet hole, the core module in the wearing state cooperates with the concha cavity to form an auxiliary cavity, the sound outlet hole being at least partially arranged in the auxiliary cavity, and the auxiliary cavity is set to be semi-open.
4 . The earphone of claim 3 , wherein the earphone further includes an adjusting mechanism connecting the core module and the hook structure, and in the wearing state, the adjusting mechanism is configured to adjust a relative position of the core module on the ear to enable the core module to form the auxiliary cavity with the concha cavity.
5 . The earphone of claim 1 , wherein at least a portion of the elastic metal wire is located at the rear side of the ear in the wearing state, and in the non-wearing state, a plane on which the elastic metal wire is located intersects the inner side surface.
6 . The earphone of claim 5 , wherein in the non-wearing state, an angle between the plane on which the elastic metal wire is located and the inner side surface is within a range of 150 to 30°.
7 . The earphone of claim 1 , wherein a diameter of the elastic metal wire is within a range of 0.6 mm to 0.8 mm.
8 . The earphone of claim 1 , wherein in the non-wearing state and along the thickness direction, the hook structure first extends toward a side of the inner side surface away from the outer side surface, and then extends toward a side of the inner side surface toward the outer side surface.
9 . The earphone of claim 1 , wherein the core module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other, a length of the core module being greater than a width of the core module, in the wearing state and along the width direction, the core module has an upper side surface away from an external ear canal of the ear, a lower side surface toward the external ear canal, and a rear side surface that connects the upper side surface and the lower side surface, the rear side surface being located at an end of the length direction toward back of a head in the wearing state, a midline of an orthographic projection of the hook structure on a reference plane perpendicular to the width direction intersects with an orthographic projection of the inner side surface on the reference plane perpendicular to the width direction to form a first intersection point, and the midline intersects with an orthographic projection of the rear side surface on the reference plane perpendicular to the width direction to form a second intersection point.
10 . The earphone of claim 9 , wherein the first intersection point and the second intersection point are connected to form a first reference line segment, the first reference line segment has a first component in the length direction and a second component in the thickness direction, a ratio of the first component to the length of the core module is within a range of 0.12 to 0.19, and a ratio of the second component to a thickness of the core module is within a range of 0.1 to 0.16.
11 . The earphone of claim 1 , wherein the core module includes a connection surface that connects the inner side surface and the outer side surface, in the wearing state, at least a portion of the connection surface is disposed within a concha cavity, the core module and the hook structure jointly clamp the ear from both sides of an ear region corresponding to the concha cavity, the connection surface forms a first contact zone with a front side of the ear, the hook structure forms a second contact zone with a rear side of the ear, and the second contact zone and the first contact zone at least partially overlap in a thickness direction of the ear.
12 . The earphone of claim 11 , wherein a portion of the hook structure corresponding to the battery shell is thicker than a portion of the hook structure corresponding to the elastic metal wire, so that the hook structure clamps the ear through the battery shell together with the core module.
13 . The earphone of claim 1 , wherein the battery shell includes a cover shell connected to the elastic metal wire and a battery compartment connected to the cover shell, the battery compartment and the cover shell cooperate to form a cavity structure that accommodates the battery, the hook structure includes a flexible cladding layer that encapsulates at least the elastic metal wire and the cover shell, and a hardness of the flexible cladding layer is less than a hardness of the cover shell.
14 . The earphone of claim 13 , wherein the battery compartment is provided being open at one end of the hook structure in a length direction, the cover shell is partially embedded within an open end of the battery compartment, an area of an outer surface of the cover shell on a reference cross-section perpendicular to the length direction of the hook structure is smaller than an area of an outer surface of the battery compartment on the reference cross-section perpendicular to the length direction of the hook structure, and a maximum area of the outer surface of the battery shell on the reference cross-section perpendicular to the length direction of the hook structure is within a range of 60 mm 2 to 100 mm 2 .
15 . The earphone of claim 14 , wherein the flexible cladding layer does not encapsulate the battery compartment, an outer surface of the flexible cladding layer smoothly transitions with the outer surface of the battery compartment, and an area of the outer surface of the cover shell on the reference cross-section perpendicular to the length direction of the hook structure gradually increases in a positive direction that is along the length direction of the hook structure and approaches the battery compartment.
16 . An earphone, comprising: a core module; and a hook structure connected to the core module, wherein the core module is located at a front side of an ear in a wearing state, at least a portion of the hook structure is located at a rear side of the ear, the core module includes a connection end connected to the hook structure and a free end not connected to the hook structure, in the wearing state, the core module has an inner side surface toward the ear along a thickness direction and an outer side surface away from the ear along the thickness direction, the core module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other, a length of the core module being greater than a width of the core module, the thickness direction being defined as a direction in which the core module is close to or away from the ear in the wearing state, and an orthographic projection of the hook structure on a reference plane perpendicular to the length direction partially overlaps with an orthographic projection of the free end on the reference plane perpendicular to the length direction.
17 . The earphone of claim 16 , wherein the hook structure includes an elastic metal wire connected to the core module and a battery shell connected to one end of the elastic metal wire away from the core module, a battery electrically connected to the core module is arranged in the battery shell, and an orthographic projection of the battery shell on a reference plane perpendicular to the length direction partially overlaps with an orthographic projection of the free end on the reference plane perpendicular to the length direction.
18 . The earphone of claim 16 , wherein in the wearing state, the free end extends into a concha cavity of the ear, the core module includes a core shell connected to the hook structure and a speaker arranged in the core shell, a sound outlet hole being arranged on one side of the core shell toward the ear in the wearing state, sound waves generated by the speaker being propagated through the sound outlet hole to be transmitted into an external ear canal, the core module in the wearing state cooperates with the concha cavity to form an auxiliary cavity in communication with the external ear canal, the sound outlet hole being at least partially arranged in the auxiliary cavity, and the auxiliary cavity is set to be semi-open.
19 . The earphone of claim 18 , wherein the earphone further includes an adjusting mechanism connecting the core module and the hook structure, and in the wearing state, the adjusting mechanism is configured to adjust a relative position of the core module on the ear to enable the core module to form the auxiliary cavity with the concha cavity.
20 . The earphone of claim 16 , wherein the core module includes a connection surface that connects the inner side surface and the outer side surface, in the wearing state, at least a portion of the connection surface is disposed within a concha cavity, the core module and the hook structure jointly clamp the ear from both sides of an ear region corresponding to the concha cavity, the connection surface forms a first contact zone with a front side of the ear, the hook structure forms a second contact zone with a rear side of the ear, and the second contact zone and the first contact zone at least partially overlap in a thickness direction of the ear.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Continuation of U.S. patent application Ser. No. 19/030,979, filed on Jan. 17, 2025, which is a continuation of International Patent Application No. PCT/CN2023/083763, filed on Mar. 24, 2023, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the technical field of electronic devices, and in particular, to an earphone. BACKGROUND As electronic devices become more prevalent, they have become essential tools for socializing and entertainment in daily life, with growing demands from users. Such electronic devices as earphones and smart glasses have been commonly used, which can be paired with smartphones, computers, and other devices, to deliver an immersive auditory experience. For earphones, it is often challenging to balance stability and comfort when worn. SUMMARY The present disclosure provides an earphone, comprising a core module and a hook structure connected to the core module. The core module is located at a front side of an ear in a wearing state, and at least a portion of the hook structure is located at a rear side of the ear. In the wearing state, the core module has an inner side surface toward the ear along a thickness direction and an outer side surface away from the ear along the thickness direction, the thickness direction being defined as a direction in which the core module is close to or away from the ear in the wearing state. In a non-wearing state and along the thickness direction, the hook structure extends first toward a side of the inner side surface away from the outer side surface, and then extends toward a side of the inner side surface toward the outer side surface. In some embodiments, the hook structure includes an elastic metal wire connected to the core module, at least a portion of the elastic metal wire is located at the rear side of the ear in a wearing state, and in the non-wearing state, a plane on which the elastic metal wire is located crosses the inner side surface. In some embodiments, in the non-wearing state, an angle between the plane on which the elastic metal wire is located and the inner side surface is within a range of 15° to 30°. In some embodiments, a diameter of the elastic metal wire is within a range of 0.6 mm to 0.8 mm. In some embodiments, the hook structure includes an adapter shell connecting the elastic metal wire and the core module, at least a portion of the adapter shell is located at the front side of the ear in the wearing state. Along the thickness direction, the adapter shell extends toward the side of the inner side surface away from the outer side surface. In some embodiments, the hook structure includes a battery shell connected to one end of the elastic metal wire away from the core module, a battery coupled to the core module is arranged in the battery shell, and in the non-wearing state, at least a portion of the battery shell is arranged between the inner side surface and the outer side surface along the thickness direction. In some embodiments, the core module has a length direction and a width direction that are perpendicular to the thickness direction and orthogonal to each other, a length of the core module being greater than a width of the core module. In the wearing state and along the width direction, the core module has an upper side surface away from an external ear canal of the ear, a lower side surface toward the external ear canal, and a rear side surface that connects the upper side surface and the lower side surface, the rear side surface being located at an end of the length direction toward the back of the head in the wearing state. A midline of an orthographic projection of the hook structure on a reference plane perpendicular to the width direction intersects with an orthographic projection of the inner side surface on the reference plane to form a first intersection point, and the midline intersects with an orthographic projection of the rear side surface on the reference plane to form a second intersection point. In some embodiments, the first intersection point and the second intersection point are connected to form a first reference line segment, the first reference line segment has a first component in the length direction and a second component in the thickness direction, a ratio of the first component to the length of the core module is within a range of 0.12 to 0.19, and a ratio of the second component to a thickness of the core module is within a range of 0.1 to 0.16. In some embodiments, a furthest point of the midline from the inner side surface in the thickness direction and the first intersection point are connected to form a second reference line segment, the second reference line segment has a third component and a fourth component along the length direction and the thickness direction, respectively, a ratio of the third component to the length of the core module is within a ra