A POWER TOOL WITH WIRELESS SIGNAL TRANSFER CAPABILITY

A power tool comprising: a housing, a stationary part, which is stationary relative to the housing, a rotatable part, which is rotatable about a rotation axis relative to the stationary part, and a rotary transformer (15) comprising: a stator (15a) attached to the stationary part, the stator (15a) c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RIMEIKA, Alfonsas Jonas, KAZEMI, Niloofar
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	HAND TOOLS MANIPULATORS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE PERFORMING OPERATIONS PHYSICS PORTABLE POWER-DRIVEN TOOLS TESTING TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	A power tool comprising: a housing, a stationary part, which is stationary relative to the housing, a rotatable part, which is rotatable about a rotation axis relative to the stationary part, and a rotary transformer (15) comprising: a stator (15a) attached to the stationary part, the stator (15a) comprising a stator coil structure, and a rotor (15b) attached to the rotatable part, the rotor (15b) comprising a rotor coil structure inductively coupled with the stator coil structure, wherein the rotor coil structure and the stator coil structure are arranged with an air gap between them in a direction along the rotation axis, wherein the stationary part comprises stationary electronic circuitry connected to the stator coil structure and the rotatable part comprises rotating electronic circuitry connected to the rotor coil structure. The rotor and stator comprises screen layers made of ferrite tape.