Linear vibrator
View Patent ↗Disclosed herein is a linear vibrator having a mass body which is accommodated in a casing defining an internal space and is vibrated. The linear vibrator includes a bracket supporting the linear vibrator from a lower position. The bracket has a depression in a bottom thereof such that a coil lead wire of a coil is placed in the depression, thus preventing friction between the coil lead wire and a movable unit.
1. A linear vibrator having a mass body which is accommodated in a casing defining an internal space and is vibrated, the linear vibrator comprising:
a mass body;
an elastic member, one side of the elastic member attached to the mass body and the other side of the elastic member attached to the casing so as to elastically support linear vibration of the mass body;
a magnet placed in a coil and interacting with an electric current flowing through the coil to generate an electromagnetic force in the direction of the central axis of the coil;
a movable unit having a yoke provided under the mass body and the elastic member and receiving the magnet therein; and
a bracket supporting the linear vibrator from a lower position and having a depression in a bottom of the bracket,
a depth of the depression being larger than a thickness of a coil lead wire of the coil, the coil lead wire placed in the depression to prevent friction between the coil lead wire and a movable unit.
2. The linear vibrator as set forth in claim 1 , wherein the bracket further comprises a circuit board provided on an upper portion thereof for electric connection.
3. A linear vibrator having a mass body which is accommodated in a casing defining an internal space, the linear vibrator comprising:
a mass body;
an elastic member, one side of the elastic member attached to the mass body and the other side of the elastic member attached to the casing so as to elastically support linear vibration of the mass body;
a magnet placed in a coil and interacting with an electric current flowing through the coil to generate electromagnetic force in the direction of the central axis of the coil;
a movable unit having a yoke provided under the mass body and the elastic member and receiving the magnet therein; and
a bracket supporting the linear vibrator from a lower position and having a protrusion in a bottom of the bracket,
a height of the protrusion being larger than a thickness of a coil lead wire of the coil, the coil lead wire placed in a space confined within the protrusion to prevent friction between the coil lead wire and a movable unit.
4. The linear vibrator as set forth in claim 3 , wherein the protrusion has a linear shape.
5. The linear vibrator as set forth in claim 3 , wherein the bracket further comprises a circuit board provided on an upper portion thereof for electric connection.
6. The linear vibrator as set forth in claim 3 , wherein the bracket further comprises a depression in the bottom thereof.