EP-4738883-A1 - EARPHONE

EP4738883A1EP 4738883 A1EP4738883 A1EP 4738883A1EP-4738883-A1

Abstract

The present disclosure relates to a headphone, and in particular, to the technical field of electronic devices. The headphone includes a main control circuit board and a capacitor electrode plate. The capacitor electrode plate is disposed in a region of the headphone that is close to a user's skin in a wearing state of the headphone. The capacitor electrode plate is configured to generate an electric signal based on whether the user wears the headphone. The capacitor electrode plate includes a first main portion electrically connected to the main control circuit board, a second main portion spaced apart from the first main portion, and a first connecting portion. The first connecting portion connects the first main portion and the second main portion in a spaced region between the first main portion and the second main portion. An area of the first connecting portion is smaller than an area of the first main portion and an area of the second main portion. The first connecting portion is bent relative to at least one of the first main portion and the second main portion, such that the first main portion and the second main portion are non-coplanar.

Inventors

NIE, Qianwen
Li, ChaoWu
WANG, CHONG
ZHANG, XU

Assignees

Shenzhen Shokz Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20240527

Claims (16)

A headphone, comprising: a main control circuit board and a capacitor electrode plate, wherein the capacitor electrode plate is disposed in a region of the headphone that is close to a user's skin in a wearing state of the headphone, and is configured to generate an electric signal based on whether the user wears the headphone, wherein the capacitor electrode plate includes: a first main portion electrically connected to the main control circuit board; a second main portion spaced apart from the first main portion; and a first connecting portion connecting the first main portion and the second main portion in a spaced region between the first main portion and the second main portion, wherein an area of the first connecting portion is smaller than an area of the first main portion and an area of the second main portion, and the first connecting portion is bent relative to at least one of the first main portion and the second main portion, such that the first main portion and the second main portion are non-coplanar.
The headphone according to claim 1, wherein the capacitor electrode plate further comprises: a second connecting portion connected to the first main portion, wherein an area of the second connecting portion is smaller than the area of the first main portion and smaller than the area of the second main portion, and the first main portion, the second main portion, and the first connecting portion are located outside the main control circuit board and are electrically connected to the main control circuit board through the second connecting portion.
The headphone according to claim 2, wherein the first main portion, the second main portion, the first connecting portion, and the second connecting portion are integrally formed from a plate or a sheet.
The headphone according to claim 2, wherein the second connecting portion is bent relative to the first main portion.
The headphone according to claim 1, wherein an area of the capacitor electrode plate is in a range of 35 mm 2 - 50 mm 2 .
The headphone according to claim 1, further comprising: a core housing; and a hook-shaped structure connected to the core housing, wherein the core housing has a connecting end connected to the hook-shaped structure and a free end not connected to the hook-shaped structure, the core housing is located at a front side of an ear of the user in the wearing state of the headphone, the free end extends into or covers a cavum concha, at least a portion of the hook-shaped structure is located at a rear side of the ear in the wearing state of the headphone, and the capacitor electrode plate is disposed inside the core housing and close to the free end.
The headphone according to claim 6, wherein the free end is arranged in a tapered shape in a direction away from the connecting end; the capacitor electrode plate further includes a second connecting portion connected to the first main portion and is electrically connected to the main control circuit board through the second connecting portion; the first connecting portion is closer to the free end than the second connecting portion; and an area of the second connecting portion is smaller than the area of the first connecting portion.
The headphone according to claim 6, wherein an inner wall surface of the free end has a first wall surface region and a second wall surface region that are non-coplanar; and the first connecting portion is bent such that the first main portion is disposed adjacent to the first wall surface region, and the second main portion is disposed adjacent to the second wall surface region.
The headphone according to claim 8, wherein a degree of curvature of the first wall surface region is less than a degree of curvature of the second wall surface region; the first main portion is fixedly attached to the first wall surface region; and at least a portion of the second main portion maintains a clearance fit with the second wall surface region.
The headphone according to claim 9, wherein the area of the first connecting portion is smaller than the area of the first main portion and smaller than the area of the second main portion.
The headphone according to claim 9, wherein the first connecting portion has a first side, a second side, a third side, and a fourth side sequentially connected end to end, wherein the first side and the second side are oppositely disposed; the third side and the fourth side are oppositely disposed; the first side is connected to the first main portion; the second side is connected to the second main portion; and a length of the first side and a length of the second side are both less than a length of the third side and both less than a length of the fourth side.
The headphone according to claim 9, further comprising: an electrode plate bracket configured to support the first main portion such that the first main portion is fixedly attached to the first wall surface region.
The headphone according to claim 6, further comprising: a speaker disposed inside the core housing, wherein along an axial direction of the speaker, the main control circuit board overlaps a portion of the speaker close to the connecting end, and the capacitor electrode plate overlaps another portion of the speaker close to the free end.
The headphone according to claim 13, further comprising: a sound chamber bracket disposed around a periphery of the speaker, wherein the second main portion is lapped on the sound chamber bracket.
The headphone according to claim 14, further comprising: an electrode plate bracket configured to support the first main portion, wherein one end of the electrode plate bracket is relatively fixed to the main control circuit board, and the other end of the electrode plate bracket is relatively fixed to the sound chamber bracket.
The headphone according to claim 15, further comprising: a reinforcement plate attached to the main control circuit board, wherein the one end of the electrode plate bracket is supported on the reinforcement plate, and the the other end of the electrode plate bracket is supported on the sound chamber bracket.

Description

TECHNICAL FIELD The present disclosure generally relates to the field of electronic devices, and in particular to headphones. BACKGROUND The wearing state detection function of the headphone is implemented by an infrared light sensor. The infrared light sensor needs to be kept on continuously, which results in relatively high-power consumption. Furthermore, the infrared light emits a small amount of radiation to the human body, and long-term use may pose a threat to human health. SUMMARY An aspect of the present disclosure provides a headphone. The headphone includes a main control circuit board and a capacitor electrode plate. The capacitor electrode plate is disposed in a region of the headphone that is close to a user's skin in a wearing state of the headphone. The capacitor electrode plate is configured to generate an electric signal based on whether the user wears the headphone. The capacitor electrode plate includes a first main portion electrically connected to the main control circuit board, a second main portion spaced apart from the first main portion, and a first connecting portion. The first connecting portion connects the first main portion and the second main portion in a spaced region between the first main portion and the second main portion. An area of the first connecting portion is smaller than an area of the first main portion and an area of the second main portion. The first connecting portion is bent relative to at least one of the first main portion and the second main portion, such that the first main portion and the second main portion are non-coplanar. In some embodiments, the capacitor electrode plate further includes a second connecting portion connected to the first main portion. An area of the second connecting portion is smaller than the area of the first main portion and the area of the second main portion. The first main portion, the second main portion, and the first connecting portion are located outside the main control circuit board. The first main portion, the second main portion, and the first connecting portion are electrically connected to the main control circuit board through the second connecting portion. In some embodiments, the first main portion, the second main portion, the first connecting portion, and the second connecting portion are integrally formed from a plate or a sheet. In some embodiments, the second connecting portion is bent relative to the first main portion. In some embodiments, an area of the capacitor electrode plate is in a range of 35 mm2-50 mm2. In some embodiments, the headphone further includes a core housing and a hook-shaped structure connected to the core housing. The core housing has a connecting end connected to the hook-shaped structure and a free end not connected to the hook-shaped structure. The core housing is located at a front side of an ear of the user in the wearing state of the headphone. The free end extends into or covers a cavum concha. At least a portion of the hook-shaped structure is located at a rear side of the ear in the wearing state of the headphone. The capacitor electrode plate is disposed inside the core housing and close to the free end. In some embodiments, the free end is arranged in a tapered shape along a direction away from the connecting end. The capacitor electrode plate further includes a second connecting portion connected to the first main portion. The capacitor electrode plate is electrically connected to the main control circuit board through the second connecting portion. The second connecting portion is closer to the free end than the first connecting portion. An area of the second connecting portion is smaller than the area of the first connecting portion. In some embodiments, an inner wall surface of the free end has a first wall surface region and a second wall surface region that are non-coplanar. The first connecting portion is bent such that the first main portion is disposed adjacent to the first wall surface region. The second main portion is disposed adjacent to the second wall surface region. In some embodiments, a degree of curvature of the first wall surface region is less than a degree of curvature of the second wall surface region. The first main portion is fixedly attached to the first wall surface region. At least a portion of the second main portion maintains a clearance fit with the second wall surface region. In some embodiments, the area of the first connecting portion is smaller than the area of the first main portion and smaller than the area of the second main portion. In some embodiments, the first connecting portion has a first side, a second side, a third side, and a fourth side sequentially connected end to end. The first side and the second side are oppositely disposed. The third side and the fourth side are oppositely disposed. The first side is connected to the first main portion. The second side is connected to the second main portion. A length of the first side and