发明名称 |
Vibration motor having an eccentric weight and device including the same motor |
摘要 |
A motor includes a stator and a rotor facing the stator. The rotor has a magnet and an eccentric weight. The magnet is magnetized in a rotational direction and produces driving magnetic field. The eccentric weight is made of the material having a greater specific gravity than the magnet. The magnet shapes in a cylinder and a part of the cylinder is cut away to form a space. The eccentric weight is placed in the space. A rotational area of the magnet and that of the eccentric weight overlap each other. In this structure, rotation of the rotor spins the eccentric weight, thereby producing large vibrations. The eccentric weight is accommodated by a motor housing for the safety. The thin and compact motor is thus obtainable.
|
申请公布号 |
US2002047369(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US20010770698 |
申请日期 |
2001.01.26 |
申请人 |
YOSHIDA SHIGERU;FUKUOKA KODO;KUYAMA KOUJI;TSUZAKI TOSHIAKI |
发明人 |
YOSHIDA SHIGERU;FUKUOKA KODO;KUYAMA KOUJI;TSUZAKI TOSHIAKI |
分类号 |
B06B1/04;B06B1/16;H02K1/27;H02K1/28;H02K7/06;H02K7/075;H02K7/08;H02K21/22;(IPC1-7):H02K7/06 |
主分类号 |
B06B1/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|