A vibration motor is provided in the present disclosure. The vibration motor includes a housing providing an accommodating space, a magnet assembly accommodated within the accommodating space, and a coil assembly for driving the magnet assembly. The magnet assembly includes a first magnet module and a second magnet opposite to each other, the coil assembly includes a coil and a coil support for supporting the coil. The coil support includes a support body and a plurality of supporting legs. The supporting legs extend from the support body and are fixed to the housing. The coil is supported by the support body between the first magnet module and the second magnet module.

A vibration motor includes a base portion arranged to extend perpendicularly to a central axis extending in a vertical direction; a magnet portion fixed above the base portion, and arranged to point in the vertical direction; a vibrating portion including a coil portion arranged radially opposite to the magnet portion, and arranged around the magnet portion to vibrate in the vertical direction; a cover portion arranged to cover upper and lateral sides of the magnet portion and the vibrating portion, and fixed to the base portion; an elastic member arranged around the magnet portion between an inner surface of an upper portion of the cover portion and an upper portion of the vibrating portion, and arranged to extend radially inward in a downward direction from the inner surface of the upper portion of the cover portion; at least one adhesive layer fixed to an upper surface of the vibrating portion, and arranged in a circumferential direction below the elastic member; and at least one viscous body in a paste, arranged in the circumferential direction on an upper surface of the at least one adhesive layer, arranged vertically opposite to the elastic member, and including an upper end portion arranged at a level higher than the level of the upper surface of the vibrating portion.

A vibration motor includes a base portion arranged to extend perpendicularly to a central axis extending in a vertical direction; a magnet portion fixed above the base portion, and arranged to point in the vertical direction; a vibrating portion including a coil portion arranged radially opposite to the magnet portion, and arranged around the magnet portion to vibrate in the vertical direction; a cover portion arranged to cover upper and lateral sides of the magnet portion and the vibrating portion, and fixed to the base portion; an elastic member arranged around the magnet portion between an inner surface of an upper portion of the cover portion and an upper portion of the vibrating portion, and arranged to extend radially inward in a downward direction from the inner surface of the upper portion of the cover portion; at least one adhesive layer fixed to an upper surface of the vibrating portion, and arranged in a circumferential direction below the elastic member; and at least one viscous body in a paste, arranged in the circumferential direction on an upper surface of the at least one adhesive layer, arranged vertically opposite to the elastic member, and including an upper end portion arranged at a level higher than the level of the upper surface of the vibrating portion.

An electro-magnetic generator is disclosed, comprising a housing containing an arched array of metal coils and a magnet connected to a inverted pendulum. The inverted pendulum is configured to move the magnet relative to the bottom surface of the arched array of metal coils, generating an electrical current in one or more of the metal coils through electromagnetic induction. Each coil in the array includes a first terminal and a second terminal for electrical output. The generator further includes a plurality of current rectifier circuits, each connected to the first and second terminals of the respective metal coils, ensuring that the output current flows in a unified direction. The outputs from the rectifier circuits are summed together to create a combined current, which is routed to a battery terminal for storage. A voltage regulator is connected to the battery terminal to stabilize the electrical output.

An electro-magnetic generator is disclosed, comprising a housing containing an arched array of metal coils and a magnet connected to a inverted pendulum. The inverted pendulum is configured to move the magnet relative to the bottom surface of the arched array of metal coils, generating an electrical current in one or more of the metal coils through electromagnetic induction. Each coil in the array includes a first terminal and a second terminal for electrical output. The generator further includes a plurality of current rectifier circuits, each connected to the first and second terminals of the respective metal coils, ensuring that the output current flows in a unified direction. The outputs from the rectifier circuits are summed together to create a combined current, which is routed to a battery terminal for storage. A voltage regulator is connected to the battery terminal to stabilize the electrical output.

A driving controller provides a first driving signal having a first driving frequency to a first actuator that causes a mirror portion to swing around a first axis, provides a second driving signal having a second driving frequency to a second actuator that causes the mirror portion to swing around a second axis intersecting with the first axis, and derives a first driving condition of the first actuator under which the first driving frequency is less than a first resonance frequency around the first axis.

A driving controller provides a first driving signal having a first driving frequency to a first actuator that causes a mirror portion to swing around a first axis, provides a second driving signal having a second driving frequency to a second actuator that causes the mirror portion to swing around a second axis intersecting with the first axis, and derives a first driving condition of the first actuator under which the first driving frequency is less than a first resonance frequency around the first axis.

This actuator includes a movable body provided with a magnet and a yoke, and a support body provided with a case and a coil. A first case member includes a first case third side plate portion and a first case fourth side plate portion that are opposed in an X direction. A coil holder includes press-fitted fixed portions that are press-fitted between the first case third side plate portion and the first case fourth side plate portion. The press-fitted fixed portions include one side fixing surface and an other side fixing surface that make contact with leading edge parts of the first case third side plate portion and the first case fourth side plate portion, which are in a Z2 direction, from the inside, and parts further toward a Z1 side than the fixed surfaces are recessed.

This actuator includes a movable body provided with a magnet and a yoke, and a support body provided with a case and a coil. A first case member includes a first case third side plate portion and a first case fourth side plate portion that are opposed in an X direction. A coil holder includes press-fitted fixed portions that are press-fitted between the first case third side plate portion and the first case fourth side plate portion. The press-fitted fixed portions include one side fixing surface and an other side fixing surface that make contact with leading edge parts of the first case third side plate portion and the first case fourth side plate portion, which are in a Z2 direction, from the inside, and parts further toward a Z1 side than the fixed surfaces are recessed.

The technology introduces a new type of attachment to the shaft of a vibration motor designed to have the dual properties of eccentricity and an aerodynamic shape. This aerodynamic shape is intended to enhance the performance of the ERM-based device, improve its capabilities, or both. In this disclosure the term performance means current draw, noise, or controllability of the aerodynamic vibration attachment. The aerodynamic vibration attachment may have additional properties such as an embedded or otherwise incorporated shape or target that facilitates the estimation or measurement of the aerodynamic vibration attachment's angular position, angular velocity, or both, by a sensor or sensors. Alternatively, the aerodynamic vibration attachment may have additional properties such as an embedded sensor or sensors, and facilitates the estimation or measurement of the aerodynamic vibration attachment's angular position, angular velocity, or both, compared to signals obtained from external, non-rotating sensors, targets, markers or references.