Linear vibrator
First Claim
1. A linear vibrator, comprising:
- a stationary unit having on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defining an internal space;
a vibratory unit including a coil mounted to face the magnet and applying an electric current, and a mass body;
a spring secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting a linear motion of the vibratory unit; and
a lubricating part provided between an outer circumference of the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein is a linear vibrator. The linear vibrator includes a stationary unit which has on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defines an internal space. A vibratory unit includes a coil mounted to face the magnet and applying an electric current, and a mass body. A spring is secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting the linear motion of the vibratory unit. A lubricating part is provided between an outer circumference of each of the magnet and the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration.
20 Citations
8 Claims
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1. A linear vibrator, comprising:
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a stationary unit having on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defining an internal space; a vibratory unit including a coil mounted to face the magnet and applying an electric current, and a mass body; a spring secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting a linear motion of the vibratory unit; and a lubricating part provided between an outer circumference of the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration. - View Dependent Claims (2, 3, 4)
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5. A linear vibrator, comprising:
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a stationary unit including; a casing having on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defining an internal space; and a bracket mounted to a lower portion of the casing to seal an internal space thereof, a vibratory unit including; a coil mounted to face the magnet and applying current; a holder coupled to an outer circumference of the coil; and a mass body provided on an outer circumference of the holder; a spring secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting a linear motion of the vibratory unit; and a lubricating part provided between an outer circumference of each of the magnet and the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration. - View Dependent Claims (6, 7, 8)
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Specification