摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame in a state covering the opening of the holding frame, a diaphragm held on the inner side of the holding frame in a state adhered to the resin film, and a beam portion of which the tip portion formed integrally with the diaphragm is combined with the vibrating portion of the armature, for propagating the vibration of the vibrating portion to the diaphragm.
摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets, a yoke, a coil, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion being passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame, a diaphragm held within the holding frame, and a beam portion for propagating the vibration of the vibrating portion to the diaphragm; with the beam portion being combined with one edge side of the diaphragm, a predetermined gap being formed between the other edge of the diaphragm, and the inner face of the holding frame, a reinforcing member being provided to the predetermined gap, and the diaphragm being combined with the holding frame by the resin film and the reinforcing member.
摘要:
An acoustic conversion device includes: a driving unit including magnets, a yoke, a coil, a vibrating portion, and an armature fixed to the yoke; a diaphragm unit including a holding frame fixed to the driving unit, with one face as a first-joint face jointed to the driving unit, and the other face as a second-joint face, a resin film adhered to the holding frame, a diaphragm held on the holding frame, and a beam portion propagating vibration from the vibrating portion to the diaphragm; and a storage unit including a case body for storing the driving unit and diaphragm unit; with the driving unit and diaphragm unit being stored in the case body, the case body being pressed against and deforming a sealing agent loaded in the second-joint face, from a side facing the second-joint face, thereby sealing each gap between the case body, cover body, and holding frame.
摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets, a yoke, a coil, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion being passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame, a diaphragm held within the holding frame, and a beam portion for propagating the vibration of the vibrating portion to the diaphragm; with the beam portion being combined with one edge side of the diaphragm, a predetermined gap being formed between the other edge of the diaphragm, and the inner face of the holding frame, a reinforcing member being provided to the predetermined gap, and the diaphragm being combined with the holding frame by the resin film and the reinforcing member.
摘要:
An acoustic conversion device includes: a driving unit including magnets, a yoke, a coil, a vibrating portion, and an armature fixed to the yoke; a diaphragm unit including a holding frame fixed to the driving unit, with one face as a first-joint face jointed to the driving unit, and the other face as a second-joint face, a resin film adhered to the holding frame, a diaphragm held on the holding frame, and a beam portion propagating vibration from the vibrating portion to the diaphragm; and a storage unit including a case body for storing the driving unit and diaphragm unit; with the driving unit and diaphragm unit being stored in the case body, the case body being pressed against and deforming a sealing agent loaded in the second-joint face, from a side facing the second-joint face, thereby sealing each gap between the case body, cover body, and holding frame.
摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion being passed through the coil; and a diaphragm unit including a diaphragm, and a beam portion for propagating the vibration of the vibrating portion to the diaphragm; with a coil attachment portion to which the coil is attached, located in a state in parallel with the vibrating portion, being provided to the armature.
摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion passed through the coil; and a diaphragm unit including a holding frame having an opening, a resin film adhered to the holding frame in a state covering the opening of the holding frame, a diaphragm held on the inner side of the holding frame in a state adhered to the resin film, and a beam portion of which the tip portion formed integrally with the diaphragm is combined with the vibrating portion of the armature, for propagating the vibration of the vibrating portion to the diaphragm.
摘要:
An acoustic conversion device includes: a driving unit including a pair of magnets disposed so as to face each other, a yoke to which the pair of magnets are attached, a coil to which driving current is supplied, a vibrating portion which vibrates when driving current is supplied to the coil, and an armature disposed between the pair of magnets with the vibrating portion being passed through the coil; and a diaphragm unit including a diaphragm, and a beam portion for propagating the vibration of the vibrating portion to the diaphragm; with a coil attachment portion to which the coil is attached, located in a state in parallel with the vibrating portion, being provided to the armature.
摘要:
An earphone includes an earphone casing inside which a sound path that guides sound to a sound discharging hole is formed, and an acoustic transducer disposed inside the earphone casing. The acoustic transducer includes an accommodation casing having accommodated therein a yoke on which paired magnets disposed so as to face each other are mounted, a coil to which a driving current is supplied, an armature provided with a vibrating part vibrating when the driving current is supplied to the coil, the vibrating part being disposed between the paired magnets, and a diaphragm coupled to the vibrating part of the armature, a sound output hole is formed on a surface that faces a vibration surface of the diaphragm in the accommodation casing, and the acoustic transducer has the sound output hole disposed in the earphone casing so that the sound output hole is acoustically coupled to the sound path.
摘要:
An earphone includes an earphone casing inside which a sound path that guides sound to a sound discharging hole is formed, and an acoustic transducer disposed inside the earphone casing. The acoustic transducer includes an accommodation casing having accommodated therein a yoke on which paired magnets disposed so as to face each other are mounted, a coil to which a driving current is supplied, an armature provided with a vibrating part vibrating when the driving current is supplied to the coil, the vibrating part being disposed between the paired magnets, and a diaphragm coupled to the vibrating part of the armature, a sound output hole is formed on a surface that faces a vibration surface of the diaphragm in the accommodation casing, and the acoustic transducer has the sound output hole disposed in the earphone casing so that the sound output hole is acoustically coupled to the sound path.