| 摘要 |
PROBLEM TO BE SOLVED: To provide a power tool having cooling capability without installing an additional radiating member. SOLUTION: The power tool 1 is provided with a housing 20 having air intake holes 21a and exhaust holes and an electric motor 30 located inside the housing 20 and having an electric circuit 40. A fan 50 driven by the electric motor 30 is disposed inside an air passageway 21c formed between the housing 20 and the electric motor 30 to generate an air current. The electric circuit 40 has a radiating plate 41A with a radiating surface. The radiating surface of the radiating plate 41A is located adjacent to the air intake holes 21a and inside the air passageway 21c. COPYRIGHT: (C)2009,JPO&INPIT
|
