Vibration motor
First Claim
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1. A vibration motor comprising:
- a first resilient member and a second resilient member providing resilient forces in opposite directions;
a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member, respectively;
a magnetic body coupled to the first vibrator to create a magnetic field; and
a coil positioned in a region where the magnetic field is created, wherein the coil applies an alternating current of a predetermined frequency,wherein the first vibrator is coupled to a convex portion of the first resilient member.
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Abstract
A vibration motor includes a first resilient member and a second resilient member providing resilient forces in opposite directions; a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member respectively; a magnetic body coupled to the first vibrator to create a magnetic field; and a coil applying a current of a predetermined frequency band in the region where the magnetic field is created.
35 Citations
16 Claims
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1. A vibration motor comprising:
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a first resilient member and a second resilient member providing resilient forces in opposite directions; a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member, respectively; a magnetic body coupled to the first vibrator to create a magnetic field; and a coil positioned in a region where the magnetic field is created, wherein the coil applies an alternating current of a predetermined frequency, wherein the first vibrator is coupled to a convex portion of the first resilient member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vibration motor comprising:
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a first resilient member and a second resilient member providing initial resilient forces in opposite directions; a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member, respectively; a magnetic body coupled to the first vibrator to create a magnetic field; and a coil positioned in a region where the magnetic field is created, wherein the coil applies an alternating current of a predetermined frequency, wherein each of the first and second resilient members has a convex shape, with an apex of the first resilient member facing an apex of the second resilient member. - View Dependent Claims (14)
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15. A vibration motor comprising:
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a first resilient member and a second resilient member providing initial resilient forces in opposite directions; a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member, respectively; a magnetic body coupled to the first vibrator to create a magnetic field; and a coil positioned in a region where the magnetic field is created, wherein the coil applies an alternating current of a predetermined frequency, wherein the first vibrator includes a central portion and an annular portion protruding toward the second vibrator, with the annular portion surrounding the central portion. - View Dependent Claims (16)
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Specification