公开(公告)号：EP2710977A1

公开(公告)日：2014-03-26

申请号：EP13185709.6

申请日：2013-09-24

申请人： Nakanishi Inc.

发明人： Muto, Shinichiro ,  Matsushita, Hayato ,  Nakamura, Akito

IPC分类号： A61C1/06

CPC分类号： A61C1/055 ,  A61C1/06 ,  H02K9/02 ,  H02K9/16

摘要： A drive motor of a dental handpiece for driving a cutting tool of the handpiece is provided that is connected to the dental handpiece on its front end side and includes a cylindrical casing; a rotor unit, which is rotatably supported inside the casing and outputs a driving force; a stator unit provided around the rotor unit inside the casing; and an air path which causes cooling air supplied from the rear end side of the drive motor to pass through an airtight cooling room circumferentially extending between the stator unit and the casing, and to be discharged from the rear end side.

摘要翻译： 提供用于驱动所述手持件的切割工具的牙齿手柄的驱动马达，所述驱动马达在其前端侧连接到所述牙齿手柄，并且包括圆柱形壳体; 转子单元，其被可旋转地支撑在壳体内并输出驱动力; 设置在所述壳体内的转子单元周围的定子单元; 以及从驱动马达的后端侧供给的冷气从通过定子单元与壳体周向延伸的气密性冷却室的空气通路，从后端侧排出。

公开(公告)号：EP2710977B1

公开(公告)日：2017-04-12

申请号：EP13185709.6

申请日：2013-09-24

申请人： Nakanishi Inc.

发明人： Muto, Shinichiro ,  Matsushita, Hayato ,  Nakamura, Akito

IPC分类号： A61C1/06

CPC分类号： A61C1/055 ,  A61C1/06 ,  H02K9/02 ,  H02K9/16