Patent ID: 9341808
Filing Date: 2016-05-17
CPC Classification: G02B,H02K

Claim Text:
1. A voice coil motor (VCM), comprising: a fastening portion; a moving portion received in the fastening portion; a magnet assembly fixed on an inner surface of the fastening portion; a coil circled around an outer surface of the moving portion and opposite to the magnet assembly; an elastic sheet connected between the fastening portion and the moving portion; and a lower plate sealing the fastening portion; wherein the lower plate comprises a first surface and a second surface opposite to the first surface, the lower plate defines a through hole penetrating the first surface and the second surface, the lower plate defines a first glue recess around the through hole and a second glue recess along an edge of the low plate in the first surface, the first glue recess communicates with the second glue recess; the fastening portion is positioned on the first surface of the lower plate via glue received in the first glue recess.