Vibration motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 27, 2000
Grant Date -
N/A
app pub date -
Feb 17, 1999
filing date -
Feb 19, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vibration motor (10) having a metal holder frame (30) provided with a motor accommodation portion (31) for receiving and holding a substantially tubular drum portion of a vibration motor body (20) and terminal pieces (40) for being affixed and connected to end portions of the vibration motor body. The metal holder frame has a bottom plate portion (32) adapted for soldering to a pattern on a printed circuit board. The bottom plate has a bulge portion formed by making a depression in the rear side of the bulge portion to make a projection on the front side of the bulge portion at least one position of the bottom plate portion, whereby when driving the vibration motor, the portion of the bulge portion acts as a turn-stopping device and prevents rotational deviation so that the vibration motor can be simultaneously mounted in a double-side mounting process by reflow soldering to a printed circuit board.
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