POWER TOOL

PROBLEM TO BE SOLVED: To provide a power tool capable of controlling load current conforming to actual temperature of an electric motor, and having excellent assembling workability since conventionally there are provided constitutions reducing load current according to supplied load current and redu...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HYODO KOKI, KOBAYASHI EIJI
Format:	Patent
Sprache:	eng
Schlagworte:	COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING HAND TOOLS MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING MANIPULATORS PERFORMING OPERATIONS POLISHING PORTABLE POWER-DRIVEN TOOLS TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a power tool capable of controlling load current conforming to actual temperature of an electric motor, and having excellent assembling workability since conventionally there are provided constitutions reducing load current according to supplied load current and reducing load current according to temperature of the motor detected by a temperature sensor imbedded in a stator in order to prevent burnout caused by overheat of the built-in electric motor and there are such problems as not always to control load current conforming to temperature of the electric motor in the former constitution and to become worse in assembling workability in the latter constitution in the power tool. SOLUTION: This power tool 1 is provided with a baffle plate 8 for controlling an air flowing passage for motor cooling air on the leeward side of a rotor 4, mounts a sensor 10 for detecting temperature of the motor cooling air on the baffle plate 8, and controls load current of the electric motor 3 according to the temperature of motor cooling air detected by the sensor 10.