Earphone

Patent metadata

Field	Value
Publication number	US-11575984-B2
Application number	US-202117335317-A
Country	US
Kind code	B2
Filing date	Jun 1, 2021
Priority date	Jun 12, 2020
Publication date	Feb 7, 2023
Grant date	Feb 7, 2023

Abstract

An earphone includes an earphone body, a loudspeaker embedded on the wearing surface of the earphone body, a gas bag disposed on the base member of the earphone body, a gas actuator disposed on the base member of the earphone body, and a valve component having a valve unit. When the gas actuator and the valve component are driven, the valve unit is opened to control gas introduction of the gas actuator, and the gas actuator is actuated to transmit the gas to the ventilating channel for gas collection, and the gas actuator further transmits the gas to the gas bag for inflating the gas bag, so that the gas bag is expanded and protruded out of the wearing surface, thereby capable of allowing the earphone to be stably worn and attached to a user's ear portion.

First claim

What is claimed is:

1. An earphone, comprising:
an earphone body having a wearing surface, wherein an inner portion of the earphone body has a base member and a ventilating channel;
a loudspeaker embedded on the wearing surface of the earphone body;
a gas bag disposed on an outer periphery of the wearing surface and being in communication with the ventilating channel;
a gas actuator disposed on the base member of the earphone body, electrically connected to the earphone body, and being in communication with the ventilating channel, wherein when the gas actuator is driven, the gas actuator is actuated to transmit gas to the ventilating channel to perform a gas collecting operation; and
a valve component having at least one valve unit, wherein the at least one valve unit includes a valve conductive layer, a valve substrate layer, and a flexible membrane, a receiving space is maintained between the valve conductive layer and the valve substrate layer, the flexible membrane is attached on a side of the valve conductive layer and is placed in the receiving space, and the at least one valve unit is driven to be opened or closed to control a gas introduction procedure of the gas actuator;
wherein when the gas actuator and the valve component are driven, the at least one valve unit is opened to control the gas introduction procedure of the gas actuator, and the gas actuator is actuated to transmit the gas to the ventilating channel for gas collection, and the gas actuator further transmits the gas to the gas bag for inflating the gas bag, so that the gas bag is expanded and protruded out of the wearing surface of the earphone body, thereby allowing the earphone to be stably worn and attached to a user's ear portion.

2. The earphone according to claim 1 , wherein the base member is a driving circuit board provided for electrically connecting to the gas actuator and the at least one valve unit of the valve component for outputting a driving signal.

3. An earphone, comprising:
an earphone body having a wearing surface, wherein an inner portion of the earphone body has a base member and a ventilating channel;
a loudspeaker embedded on the wearing surface of the earphone body;
a gas bag disposed on an outer periphery of the wearing surface and being in communication with the ventilating channel;
a gas actuator disposed on the base member of the earphone body, electrically connected to the earphone body, and being in communication with the ventilating channel, wherein when the gas actuator is driven, the gas actuator is actuated to transmit gas to the ventilating channel to perform a gas collecting operation; and
a valve component having at least one valve unit, wherein the at least one valve unit is driven to be opened or closed to control a gas introduction procedure of the gas actuator;
wherein when the gas actuator and the valve component are driven, the at least one valve unit is opened to control the gas introduction procedure of the gas actuator, and the gas actuator is actuated to transmit the gas to the ventilating channel for gas collection, and the gas actuator further transmits the gas to the gas bag for inflating the gas bag, so that the gas bag is expanded and protruded out of the wearing surface of the earphone body, thereby allowing the earphone to be stably worn and attached to a user's ear portion;
wherein the gas actuator is a micro pump, and the micro pump comprises:
an inlet plate having at least one inlet hole, at least one convergence channel, and a convergence chamber, wherein the at least one inlet hole is used to introduce the gas to flow into the micro pump, the at least one inlet hole correspondingly penetrates the at least one convergence channel, and the at least one convergence channel is converged at the convergence chamber, so that the gas introduced from the at least one inlet hole is converged at the convergence chamber;
a resonance sheet attached to the inlet plate, wherein the resonance sheet has a perforation, a movable portion, and a fixed portion, wherein the perforation is located at a center portion of the resonance sheet and corresponds to the convergence chamber of the inlet plate, the movable portion is disposed at a periphery of the perforation and is disposed at a portion corresponding to the convergence chamber, and the fixed portion is disposed at an outer periphery of the resonance sheet and attached to the inlet plate; and
a piezoelectric actuator attached to the resonance sheet and disposed correspondingly to the resonance sheet;
wherein a chamber space is formed between the resonance sheet and the piezoelectric actuator, so that when the piezoelectric actuator is driven, the gas outside the micro pump is introduced into the micro pump through the at least one inlet hole of the inlet plate, converged at the convergence chamber via the at least one convergence channel, flowed through the perforation of the resonance sheet, and transmitted outwardly by a resonance effect resulting between the piezoelectric actuator and the movable portion of the resonance sheet.

4. The earphone according to claim 3 , wherein the piezoelectric actuator comprises:
a suspension plate in square shape and capable of bending and vibrating;
an outer frame disposed around a periphery of the suspension plate;
at least one supporting element formed between the suspension plate and the outer frame to provide a flexible support for the suspension plate; and
a piezoelectric element having a side length, wherein the side length of the piezoelectric element is smaller than or equal to a side length of the suspension plate, and the piezoelectric element is attached to a surface of the suspension plate so as to drive the suspension plate to bend and vibrate when the piezoelectric element is applied with a voltage.

5. The earphone according to claim 3 , wherein the micro pump further comprises a first insulation sheet, a conductive sheet, and a second insulation sheet, and wherein the inlet plate, the resonance sheet, the piezoelectric actuator, the first insulation sheet, the conductive sheet, and the second insulation sheet are sequentially stacked with each other.

6. The earphone according to claim 3 , wherein the piezoelectric actuator comprises:
a suspension plate in square shape and capable of bending and vibrating;
an outer frame disposed around a periphery of the suspension plate;
at least one supporting element formed between the suspension plate and the outer frame to provide a flexible support for the suspension plate, wherein a surface of the suspension plate and a surface of the outer frame are non-coplanar, so that a chamber space is formed between the surface of the suspension plate and the resonance sheet; and
a piezoelectric element having a side length, wherein the side length of the piezoelectric element is smaller than or equal to a side length of the suspension plate, and the piezoelectric element is attached to a surface of the suspension plate so as to drive the suspension plate to bend and vibrate when the piezoelectric element is applied with a voltage.

7. An earphone, comprising:
an earphone body having a wearing surface, wherein an inner portion of the earphone body has a base member and a ventilating channel;
a loudspeaker embedded on the wearing surface of the earphone body;
a gas bag disposed on an outer periphery of the wearing surface and being in communication with the ventilating channel;
a gas actuator disposed on the base member of the earphone body, electrically connected to the earphone body, and being in communication with the ventilating channel, wherein when the gas actuator is driven, the gas actuator is actuated to transmit gas to the ventilating channel to perform a gas collecting operation; and
a valve com

Assignees

• Microjet Technology Co Ltd

Inventors

• Mou Hao-Jan
• Hsueh Ta-Wei
• Chen Yu-Tzu
• Huang Chi-Feng
• Han Yung-Lung
• Ku Yang
• Lu Yi-Ting

Classifications

• H04R2460/11

  Aspects relating to vents, e.g. shape, orientation, acoustic properties in ear tips of hearing devices to prevent occlusion · CPC title

• H04R1/1016 Primary

  Earpieces of the intra-aural type · CPC title

• H04R1/1041

  Mechanical or electronic switches, or control elements (switches in general H01H) · CPC title

• H04R1/1075

  Mountings of transducers in earphones or headphones · CPC title

• H10N30/2047

  Membrane type · CPC title