VIBRATION MOTOR
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United States of America Patent
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app pub date -
Sep 1, 2017
filing date -
Sep 14, 2016
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Abstract
A vibration motor includes: a stationary portion which has a base plate, substrate, coil, and case; a vibrating body which has a magnet, back yoke, and weight and is supported by the stationary portion so as to be capable of vibrating in a vertical direction; and an elastic member. In a vibration motor, a substrate is disposed on a base plate, a coil is disposed on the substrate, and a magnet is disposed so as to be accommodated on an inner peripheral side of the coil having an annular shape by vibration. A back yoke is disposed on the magnet, a weight is disposed on the back yoke, and a case accommodates the coil, magnet, back yoke, and weight. An elastic member is disposed between the case and the weight. The substrate has a penetration region which penetrates vertically therethrough at least on an inner peripheral side of the coil.
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