Vibration motor

A vibration motor includes a weight that rotates about a shaft, and has a centroid position different from a central axis of the shaft, a case with a protrusion portion that extends from a lower end of the circumferential surface portion, and a lower end portion of the shaft is fixed to a stator por...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Yamaguchi Tsuyoshi, Aoi Takayuki, Kiuchi Hiroyuki
Format:	Patent
Sprache:	eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A vibration motor includes a weight that rotates about a shaft, and has a centroid position different from a central axis of the shaft, a case with a protrusion portion that extends from a lower end of the circumferential surface portion, and a lower end portion of the shaft is fixed to a stator portion. A base of the vibration motor includes a concave portion that is recessed from a radially outer side of the base to a radially inner side of the base at a position overlapping the protrusion portion at a circumferential edge of the base. The entire protrusion portion or a portion of a tip end side in a direction in which the protrusion portion extends is bent radially inside the base so that a surface of the protrusion portion which is toward an upper side is in contact with the base.