US-20260129339-A1 - EARPHONES

US20260129339A1US 20260129339 A1US20260129339 A1US 20260129339A1US-20260129339-A1

Abstract

The present disclosure relates to an earphone. The earphone includes an ear hook and a sound production portion connected to each other, wherein in a wearing state, the ear hook is hooked between an auricle and a head of a user, the sound production portion is located at an anterior side of the auricle; the sound production portion comprises a core housing and a first capacitance plate, the core housing including a connection end connected to the ear hook and a free end away from the connection end, wherein at least a portion of the free end extends into a concha cavity or abuts against the auricle; the first capacitance plate is disposed inside the core housing and at least a portion of the first capacitance plate is located at the free end; the first capacitance plate is configured to detect whether the earphone is in the wearing state.

Inventors

ChaoWu Li
Qianwen NIE
Chong Wang
Hao Ke

Assignees

Shenzhen Shokz Co., Ltd.

Dates

Publication Date: 20260507
Application Date: 20251230

Claims (20)

1 . An earphone, comprising an ear hook and a sound production portion connected to each other, wherein in a wearing state, the ear hook is hooked between an auricle and a head of a user, and the sound production portion is located at an anterior side of the auricle; the sound production portion comprises a core housing and a first capacitance plate, the core housing including a connection end connected to the ear hook and a free end away from the connection end, wherein at least a portion of the free end extends into a concha cavity or abuts against the auricle; the first capacitance plate is disposed inside the core housing and at least a portion of the first capacitance plate is located at the free end; and the first capacitance plate is configured to detect whether the earphone is in the wearing state; and the core housing has a length direction, a width direction, and a thickness direction that are orthogonal to each other, the thickness direction being a direction in which the core housing faces toward or away from the auricle in the wearing state, the length direction being a direction in which the core housing is close to or far away from a back of the head in the wearing state, wherein the first capacitance plate forms a first projection in a first reference plane perpendicular to the thickness direction; and the first projection is located within a 5 equally divided region of the core housing that is closest to the free end along the length direction.
2 . The earphone of claim 1 , wherein the first projection is located within a 7 equally divided region of the core housing that is closest to the free end along the length direction.
3 . The earphone of claim 1 , wherein in the wearing state, at least a portion of the free end abuts against a helix of the auricle or an antihelix of the auricle.
4 . The earphone of claim 1 , wherein the first capacitance plate has a maximum distance from an outermost end of the free end along the length direction; and a ratio of the maximum distance to an entire length of the core housing along the length direction is less than or equal to 0.2, the entire length being a distance from the free end to the connection end of the core housing.
5 . The earphone of claim 1 , wherein the core housing comprises a first side wall and a second side wall arranged at an interval along the thickness direction, wherein the first side wall is closer to the auricle than the second side wall in the wearing state; and the first capacitance plate comprises a first main portion, a second main portion, and a connecting portion, wherein the second main portion is arranged at an interval from the first main portion along the thickness direction, and the second main portion is closer to the first side wall.
6 . The earphone of claim 5 , wherein the first capacitance plate forms a second projection in a second reference plane perpendicular to the length direction, wherein the first projection comprises a first sub-projection area formed by the first main portion and a second sub-projection area formed by the second main portion; and the second projection comprises a third sub-projection area formed by the first main portion and a fourth sub-projection area formed by the second main portion, wherein an area of the first sub-projection area is less than an area of the third sub-projection area, and an area of the second sub-projection area is less than an area of the fourth sub-projection area.
7 . The earphone of claim 5 , wherein an annular flange is disposed on a side wall surface of the first side wall that is close to the first capacitance plate.
8 . The earphone of claim 19 , wherein the first main portion comprises at least two first sub-main portions circumferentially bent and connected along a circumference of the sound cavity bracket.
9 . The earphone of claim 5 , wherein when the first reference plane is translated along the thickness direction, the first reference plane and the first main portion form a first intersection line, wherein along a direction from the second side wall toward the first side wall, a length of the first intersection line becomes longer.
10 . The earphone of claim 9 , wherein when the first reference plane is translated along the thickness direction, the first reference plane and the second main portion form a second intersection line, wherein a minimum length of the second intersection line is not less than a minimum length of the first intersection line.
11 . The earphone of claim 10 , wherein the minimum length of the second intersection line is not less than a maximum length of the first intersection line.
12 . The earphone claim 5 , wherein the earphone further comprises a second capacitance plate disposed on the second side wall, the second capacitance plate being configured to generate a touch signal in response to a touch operation of a user.
13 . The earphone of claim 5 , wherein the connecting portion connects the first main portion and the second main portion, and is bent such that the first main portion and the second main portion are arranged non-coplanar.
14 . The earphone of claim 12 , wherein a spatial distance between the first capacitance plate and the second capacitance plate along the length direction is not less than 4 mm.
15 . The earphone of claim 12 , wherein the second capacitance plate is located on a side of the second side wall away from an interior of the core housing.
16 . The earphone of claim 1 , wherein the first projection is located within an 8 equally divided region of the core housing that is closest to the free end along the length direction.
17 . The earphone of claim 1 , wherein the first projection is located within a 9 equally divided region of the core housing that is closest to the free end along the length direction.
18 . The earphone of claim 7 , wherein the earphone further comprises a speaker and a sound cavity bracket disposed inside the core housing, wherein the annular flange and the speaker cooperate to form an acoustic front cavity; and the sound cavity bracket and the speaker cooperate to form an acoustic rear cavity.
19 . The earphone of claim 18 , wherein the first main portion is fixed on an outer circumferential surface of the sound cavity bracket; and the second main portion is fixed on an outer circumferential surface of the annular flange.
20 . The earphone of claim 19 , wherein the second main portion comprises at least two second sub-main portions circumferentially bent and connected along a circumference of the annular flange.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/CN 2024/114012 filed on Aug. 22, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to the field of electronic device, 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 also have increasingly higher. Electronic devices such as earphones and smart glasses have also been widely used in people's daily lives. The electronic devices can be used in conjunction with terminal devices such as mobile phones and computers to provide users with an auditory feast. Nowadays, an earphone is usually equipped with a touch circuit or a touch module to detect whether the earphone is worn into an ear, but a wearing detection function of the current earphone is not sensitive, so that the user often experiences accidental touch when removing or touching the earphone, resulting in an earphone judgment error, which affects the user's wearing experience. SUMMARY To solve the above technical problem, one technical solution adopted by the present disclosure is to provide an earphone. The earphone includes an ear hook and a sound production portion connected to each other, wherein in a wearing state, the ear hook is hooked between an auricle and a head of a user, and the sound production portion is located at an anterior side of the auricle; the sound production portion includes a core housing and a first capacitance plate, the core housing including a connection end connected to the ear hook and a free end away from the connection end, wherein at least a portion of the free end extends into a concha cavity or abuts against the auricle; the first capacitance plate is disposed inside the core housing and at least a portion of the first capacitance plate is located at the free end; and the first capacitance plate is configured to detect whether the earphone is in the wearing state; and the core housing has a length direction, a width direction, and a thickness direction that are orthogonal to each other, the thickness direction being a direction in which the core housing faces toward or away from the auricle in the wearing state, the length direction being a direction in which the core housing is close to or far away from a back of the head in the wearing state, wherein the first capacitance plate forms a first projection in a first reference plane perpendicular to the thickness direction; and the first projection is located within a 5 equally divided region of the core housing that is closest to the free end along the length direction. In some embodiments, the first projection is located within a 7 equally divided region of the core housing that is closest to the free end along the length direction. In some embodiments, in the wearing state, at least a portion of the free end abuts against a helix of the auricle or an antihelix of the auricle. In some embodiments, the first capacitance plate has a maximum distance from an outermost end of the free end along the length direction; and a ratio of the maximum distance to an entire length of the core housing along the length direction is less than or equal to 0.2, the entire length being a distance from the free end to the connection end of the core housing. In some embodiments, the core housing includes a first side wall and a second side wall arranged at an interval along the thickness direction, wherein the first side wall is closer to the auricle than the second side wall in the wearing state; the first capacitance plate includes a first main portion, a second main portion, and a connecting portion, wherein the second main portion is arranged at an interval from the first main portion along the thickness direction, the second main portion is closer to the first side wall; and the connecting portion connects the first main portion and the second main portion, and is bent such that the first main portion and the second main portion are arranged non-coplanar. In some embodiments, the first capacitance plate forms a second projection in a second reference plane perpendicular to the length direction, wherein the first projection includes a first sub-projection area formed by the first main portion and a second sub-projection area formed by the second main portion; and the second projection includes a third sub-projection area formed by the first main portion and a fourth sub-projection area formed by the second main portion, wherein an area of the first sub-projection area is less than an area of the third sub-projection area, and an area of the second sub-projection area is less than an area of the fourth sub-projection area. In some embodiments, an annular flange is disposed on a side wall surface of the