Electric power device with integrated cooling system for controlling tools

Abstract

A device is provided that includes at least one motor part having a housing surrounding an electric motor for driving an active head part accommodating a tool such as a tool for grinding, sanding or the like, and a suction pipe intended to be connected to a suction device. The suction pipe leads to the housing of the motor part and the motor comprises a sealed high-frequency electric motor positioned in the central part of said housing in such a way that the sucked-in air circulates around the body of the motor.

1 . Device including at least one motor part comprising a housing surrounding an electric motor for driving an active head part accommodating a tool, and a suction pipe connected to a suction device, wherein the suction pipe leads to the housing of the motor part and the motor comprises a sealed high-frequency electric motor positioned in a central part of said housing in such a way that sucked-in from the suction pipe air circulates around a body of the motor. 
     
     
         2 . Device as claimed in  claim 1 , further comprising means for guiding the sucked-in air around and along the body of the motor. 
     
     
         3 . Device as claimed in  claim 2 , wherein said guide means comprise a plurality of longitudinal fins extending perpendicularly to a longitudinal axis of the housing from the body of the motor to an inner wall of the housing. 
     
     
         4 . Device as claimed in  claim 2 , wherein said guide means provide a laminar flow of the sucked-in air around and along the body of the motor. 
     
     
         5 . Device as claimed in  claim 2 , wherein the guide means comprise at least one fin having a longitudinal axis merged with the longitudinal axis of the body of the motor. 
     
     
         6 . Device as claimed in  claim 5 , wherein the fin extends from the body of the motor to an inner wall of the housing. 
     
     
         7 . Device as claimed in  claim 1 , wherein the housing is substantially cylindrical in shape. 
     
     
         8 . Device as claimed in  claim 6 , wherein the at least one fin is rigidly connected to the housing. 
     
     
         9 . The device as claimed in  claim 1 , in combination with a long arm sander that includes a carrying arm, a grip handle, and an active head part accommodating a grinding or sanding tool. 
     
     
         10 . Device as claimed in  claim 7 , wherein the guide means comprises at least one fin rigidly connected to the housing. 
     
     
         11 . Device as claimed in  claim 1 , in combination with an active head part accommodating a grinding or sanding tool.