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    • 2. 发明专利
    • Handpiece with electric motor for use in dental, dental-medical, or dental-technical field
    • 具有电动马达用于牙科,牙科医疗或牙科技术领域的汉斯
    • JP2014100587A
    • 2014-06-05
    • JP2013272001
    • 2013-12-27
    • Kaltenbach & Voigt Gmbhカルテンバッハ ウント ホイクト ゲゼルシャフト ミット ベシュレンクテル ハフツングKaltenbach & Voigt GmbH
    • GUGEL BERNDKUHN BERNHARD
    • A61C1/12
    • A61C1/12A61C1/06A61C1/185
    • PROBLEM TO BE SOLVED: To provide a small-sized and easy-to-use handpiece for use in dental, dental-medical, or dental-technical field.SOLUTION: A handpiece comprises: an elongate grip sleeve; a coupling element being disposed at a rear end of the grip sleeve; and a head part having a tool receiver being disposed at a front end of the grip sleeve. The handpiece has an electric motor, the motor being completely integrated within the grip sleeve such that the motor is radially installed with a spring and is biased to a front fastening part within the sleeve. The motor is a brushless electric motor having a fixed stator and a rotor with two bearings, the bearings being integrally secured in the stator. A thin sheet laminate and windings of the stator are completely embedded in a sheath, the two bearing being also disposed in the sheath. The coupling element secured to the sleeve has a plate-like spring disposed, the plate-like spring compressing one side of the coupling element in an axial direction, and the other side of the plate-like spring compressing an outer ring of the rear ball bearing of the rotor.
    • 要解决的问题:提供用于牙科,牙科医疗或牙科技术领域的小尺寸和易于使用的手持件。解决方案:手柄包括:细长的手柄套; 耦合元件设置在所述把手套筒的后端; 以及头部,其具有设置在所述把手套的前端的工具接收器。 手持件具有电动马达,电动机完全集成在把手套筒内,使得电动机径向地安装有弹簧并被偏压到套筒内的前紧固部件。 电动机是具有固定定子和具有两个轴承的转子的无刷电动机,该轴承一体地固定在定子中。 薄片层压板和定子的绕组完全嵌入护套中,两个轴承也设置在护套中。 固定到套筒上的联接元件具有板状弹簧,板状弹簧沿轴向压缩联接元件的一侧,并且板状弹簧的另一侧压缩后球的外圈 转子轴承。