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CONTROL DEVICE OF DENTAL HANDPIECE
专利权人:
Makoto Kunisada
发明人:
Makoto Kunisada
申请号:
US14119993
公开号:
US20140134565A1
申请日:
2012.05.23
申请国别(地区):
US
年份:
2014
代理人:
摘要:
An object is to provide a control device of a dental handpiece that is able to prevent giving a shock to the operator having the dental handpiece and the patient of treatment subject and also that is able to reduce the load onto the motor and to suppress heat generation thereof. The rotational direction of a motor 20 of a dental handpiece is switched at every certain time. At this time, before the rotational direction of the motor 20 is switched through switching of a relay 17, voltage to be applied to the motor 20 is reduced. It is thereby prevented that a large current flows into the motor 20 when the relay 17 is switched, and also that a large rotation torque is applied to a cutting tool rotationally driven by the motor 20.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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