| 摘要 |
PCT No. PCT/EP97/04130 Sec. 371 Date Jan. 25, 1999 Sec. 102(e) Date Jan. 25, 1999 PCT Filed Jul. 30, 1997 PCT Pub. No. WO98/06245 PCT Pub. Date Feb. 12, 1998In a hand-held electric tool driven by an electric motor (2) and capable of being connected to a single-phase alternating current (4a), the electric motor (2) has no collector or slip ring, and its driving energy is supplied by control electronics (5) which are powered at their input by the single-phase alternating current (4a) and which supply at their output the type of current (4b) suitable for the motor. The control electronics (5) are arranged in a handle (1a) of the electric tool and are cooled by the cooling air flow (7) which also cools the motor (2). |
