Almus Corp.

Yeong Jae Lee

Byung Il Min

Jeong Kwon Park

Ju Heon Ko

Yun Uk Ha

Jong Won Lee

Disclosed is an earphone including a housing, a speaker unit accommodated in the housing, and a printed circuit board (PCB) accommodated in the housing, disposed below the speaker unit, and configured to provide an electrical signal to the speaker unit. Here, the speaker unit includes a first diaphragm, a first voice coil fixed to the first diaphragm, at least one magnet disposed below the first diaphragm, a frame which accommodates the first diaphragm, the first voice coil, and the magnet, and a substrate which receives and transmits an electrical signal from the PCB to the first voice coil. The substrate is disposed on an upper side of the speaker unit. The earphone further includes a connection pin.

Earphone

An earphone includes a housing, a speaker unit disposed in the housing, a cover coupled with the housing and including a nozzle, a first space portion disposed in front of the speaker unit, and a second space portion disposed in the rear of the speaker unit and partitioned off from the first space portion. Here, the speaker unit includes a cylindrical yoke with an open top, a magnet fixed to a bottom surface of an inside of the yoke, a plate fixed to a top surface of the magnet, a voice coil disposed between an inner circumference of the yoke and outer circumferences of the magnet and the plate, a vibration plate disposed above the plate and to which the voice coil is fixed, a cap coupled with the yoke, and a frame coupled with the yoke and the cap.

Earphone including tuning means

Disclosed is a microphone-mounted earphone including a housing, a speaker unit accommodated in the housing, and a microphone. Here, the housing includes a sound emission path formed in front of the speaker unit to emit a sound generated by the speaker unit toward the outside. The housing includes a microphone installation groove recessed from an outer surface of a front of the speaker unit toward the sound emission path. The microphone is installed in the microphone installation groove. Also, the microphone-mounted earphone further includes a cover configured to cover the microphone installation groove not to allow the microphone to be exposed outward.

Microphone-mounted earphone

A speaker unit includes a magnet, an upper plate fixed to a top surface of the magnet, a voice coil disposed to surround outer circumferences of the magnet and the upper plate, a vibration plate to which the voice coil is fixed, a fixing ring on which an edge of the vibration plate is mounted, and a frame having an open top and configured to accommodate the magnet, the upper plate, and the voice coil. Here, a pipe conduit is formed in the frame along a circumferential direction. A first hole configured to come into contact and communicates with a 1_1 space disposed in front of the speaker unit and to allow a 1_2 space disposed on a side of the speaker unit to communicate with the pipe conduit is formed in at least one first position of a side surface of the frame in a circumferential direction.

Speaker unit for earphone

Disclosed is a speaker unit for an earphone. The speaker unit includes a magnet, a voice coil, a vibration plate, a fixing ring on which an edge of the vibration plate is mounted, and a frame configured to accommodate the magnet, the upper plate, and the voice coil. Here, a pipe conduit is formed in the frame along a circumferential direction. A first hole configured to allow the pipe conduit and a first space disposed in front of the speaker unit to communicate with each other is formed in at least one first position at a top of the frame in a circumferential direction. A second hole configured to allow the pipe conduit and a second space disposed in the rear of the speaker unit to communicate with each other is formed in at lest one second position at a bottom of the frame in a circumferential direction.

An earphone includes a housing, the speaker unit disposed in the housing, a cover coupled with the housing and including a nozzle, a first space portion disposed in front of the speaker unit, and a second space portion disposed in the rear of the speaker unit and partitioned off from the first space portion. Here, the speaker unit includes a cylindrical yoke with an open top, a magnet fixed to a bottom surface of an inside of the yoke, a plate fixed to a top surface of the magnet, a voice coil disposed between an inner circumference of the yoke and outer circumferences of the magnet and the plate, a vibration plate disposed above the plate and to which the voice coil is fixed, a cap coupled with the yoke, and a frame coupled with the yoke and the cap.

Growing community of inventors

Yongin-si, South Korea

Yeong Jae Lee