| 摘要 |
PURPOSE:To improve the cooling property of electronic components cooling a front armature coil sufficiently, by biasing the whole armature coil toward the front side. CONSTITUTION:A rotary shaft 1 is arranged through the center of a front bracket 2 and a rear bracket 3 confronting each other, and is supported by ball bearings 4. On the surface of a set of brackets confronting each other, an armature core 6 wound with an armature coil 5 is fixed via a faucet. The armature coil 5 is arranged so that the coil end height H1 of the front bracket 2 side may be larger than the coil end height H2 of the rear bracket 3 side. Centrifugal fans 15, 16 are arranged on the both sides of a rotary pole 8, and a plurality of diffusers 18 are formed in one in the inside corner of the rear bracket 3. |
