Kaltenbach + Voigt Gmbh

Kavo Dental Gmbh

Alfons Mader

Johann Stempfle

Josef Duesing

Alexander Klee

Dennis Krüger

Josef Düsing

An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a plurality of advantageous embodiments. The electric motor arrangement is characterized by the following properties: the use of a light source based on SMD-LED or LED as a semiconductor chip; the shortening of the INTRAmatic coupling to between 20 mm and 25 mm; a hermetically extruded stator comprising integrated media tubes and molded connection sockets; the stator winding is embodied as a coil segment winding instead of an H winding or triangle; and the winding head has openings for media tubes.

Electric motor arrangement for a medical handpiece

An electric-motor arrangement for a medical, in particular dental, handpiece that has a motor housing and a rotor which is arranged in the motor housing so that it can be rotated about an axis via a first bearing and a second bearing. A stator is arranged around the rotor in relation to the axis. The first bearing is received in a first bearing flange, and the second bearing is received in a second bearing flange. Both bearing flanges are composed of metal and adjoin the motor housing directly by way of their circumferential faces. As a result, running noise and vibrations can be reduced. Moreover, premature wear and/or failure can be prevented.

Electric-motor arrangement for a dental handpiece

Electric motor arrangement for a medical, especially dental, tool holder

The invention relates to an electric-motor arrangement for a medical, in particular dental, hand piece which has a motor housing () and a rotor () which is arranged in the motor housing () so that it can be rotated about an axis (L) via a first bearing () and a second bearing (). A stator () is arranged around the rotor () in relation to the axis (L). The first bearing () is received in a first bearing flange (), and the second bearing () is received in a second bearing flange (). Both bearing flanges () are composed of metal and adjoin the motor housing () directly by way of their circumferential faces (). As a result, running noise and vibrations can be reduced. Moreover, premature wear and/or failure can be prevented.

Electric motor arrangement for use in a medical, in particular in a dental handpiece and dental handpiece part

In an electric motor for use in a dental, dental-medical or dental-technical handpiece, having a rotatably mounted rotor and a stator surrounding the rotor, the stator is surrounded by a sheathing having an inner sleeve, on the outside of which there are arranged functionally relevant components of the stator, for example stator winding(s), return plates, and/or contact pins, and an outer sleeve embedding the inner sleeve with the functionally relevant components.

Growing community of inventors

Isny, Germany

Alfons Mader