Method of manufacturing a small vibration motor

Details Method of manufacturing a small vibration motor Method of manufacturing a small vibration motor

2007-05-29

2007-05-29

Tugbang, A. Dexter (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S596000, C029S597000, C029S606000, C029S607000, C310S071000, C310S081000, C310S089000, C310S06700R, C361S807000, C361S816000

Reexamination Certificate

active

11052929

ABSTRACT:
A driver IC and passive parts, which convert a direct current voltage into a three-phase voltage, and an FP coil for cyclically generating a magnetic field through the driver IC are mounted on a flexible substrate, which constitutes a small vibration motor. The driver IC is a so-called bare chip in which a circuit section is exposed and is not molded with resin and the like. Magnets and an unbalance weight are installed on a yoke having a shaft. The FP coil and the magnet are placed so as to face each other. A cover is caulked to fixed to a bottom plate. Thus, the vibration motor can be miniaturized and thinned. Moreover, the vibration motor can be automatically manufactured, and installing them to an electronic apparatus can be automatically performed.

REFERENCES:
patent: 6274955 (2001-08-01), Satoh et al.
patent: 6326711 (2001-12-01), Yamaguchi et al.
patent: 10-248203 (1998-09-01), None

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