Linear vibrator
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorMin Young So
Life of this patent
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Abstract
A linear vibrator includes a casing defining an internal space of the vibrator, a bracket disposed under the casing and having a coil, to which electricity is applied to induce a magnetic field, an oscillator having a magnet received in a hollow portion of a yoke, one end of which is closed, and a cylindrical weight coupled onto the circumference of the yoke, and a spring member coupled with an upper portion of the casing to elastically support the oscillator such that the oscillator is movable in a linear motion, wherein the weight is provided with a plurality of circumferential recesses in which a rotary member is rotatably inserted while being in contact with a sidewall of the casing.
Claims7
A linear vibrator comprising:
- a casing defining an internal space of the vibrator;
- a bracket disposed under the casing and having a coil, to which electricity is applied to induce a magnetic field;
- an oscillator having a hollow yoke with a closed end, a magnet received in the hollow portion of the yoke, and a cylindrical weight coupled onto the circumference of the yoke and provided with a plurality of recesses on an outer circumferential surface of the weight, the plurality of recesses being disposed around the circumferential surface of the weight at distances of 360°/n, wherein n indicates a number of rotary members each inserted into a respective one of the recesses while being in contact with an inner sidewall of the casing, each of the recesses having a shape corresponding to that of its respective rotary member;
- a spring member coupled with an upper portion of the casing to elastically support the oscillator such that the oscillator is movable in a linear motion.
Dependencies are inferred from the claim text.