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US 10,381,908 B2Granted
Vibration motor
AssigneeNidec Seimitsu Corporation
InventorsTomohiro Akanuma, Mitsuru Oi, Tetsufumi Hayashi
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AssigneeNidec Seimitsu Corporation
InventorsTomohiro Akanuma, Mitsuru Oi, Tetsufumi Hayashi
Estimating the term…
A vibration motor includes a stationary portion including a casing and a coil; a vibrator supported to be capable of vibrating in one direction with respect to the stationary portion; and an elastic member arranged between the stationary portion and the vibrator. The vibrator includes a magnet arranged on an upper side of the coil in a vertical direction perpendicular to the one direction, and a weight arranged to hold the magnet. The weight includes a first weight portion in the shape of a plate, and at least one second weight portion arranged to extend downward from a lower surface of the first weight portion. The at least one second weight portion and the coil are arranged opposite to each other in the one direction.
A vibration motor comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
Motors with reciprocating, oscillating or vibrating magnet, armature or coil system: with polarised armatures moving in alternate directions by…
Dynamo-electric machines
About 10 years 7 months of term left · ends 17 May 2037 (estimated)
This application claims the benefit of priority to Japanese Patent Application No. 2015-204920 filed on Oct. 16, 2015. The entire contents of this application are hereby incorporated herein by reference.
1. Field of the Invention
The present invention relates to a vibration motor.
FIG. 1 is an exploded perspective view of a vibration motor according to a first preferred embodiment of the present invention.
FIG. 2 is a perspective view of the vibration motor according to the first preferred embodiment of the present invention.
FIG. 3 is a top view of the vibration motor according to the first preferred embodiment of the present invention.
Hereinafter, exemplary preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a vibration motor according to a first preferred embodiment of the present invention. FIG. 2 is a perspective view of the vibration motor according to the first preferred embodiment of the present invention. FIG. 3 is a top view of the vibration motor according to the first preferred embodiment of the present invention. FIG. 4 is a side view of the vibration motor according to the first preferred embodiment of the present invention. Each of FIGS. 2, 3, and 4 illustrates the vibration motor with a cover thereof removed therefrom.
In each of FIGS. 1 to 4, the right-left direction is defined as one direction, which is denoted as an X direction. Meanwhile, a vertical direction, which is a direction perpendicular to the one direction, is denoted as a Y direction. For example, the upper side in FIG. 1 is the upper side in the vertical direction (i.e., the Y direction). The same is true of the other drawings. It should be noted, however, that the above definitions of the directions are not meant to restrict in any way the orientation of a vibration motor according to any preferred embodiment of the present invention.
1.1 Overall Structure