| 摘要 |
An electric chain saw comprising a cutting chain 2 that rotates around a drive sprocket and an oblong guide bar 2, and a brushless direct current electric motor 4 that drives the chain by means of the sprocket. The motor 4 is enclosed in a two part housing 5 made of a light metallic alloy, and is in contact with the surface of the housing 5. This contact provides static cooling to the motor 4.
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