| 摘要 |
A power tool (11) includes a motor (15), a gear mechanism (19) that changes the speed of an output of the motor (15), a drive circuit (47) including a switching element (40) that controls power supplied to the motor (15), a housing (12) that accommodates the motor (15), a fixture (37) that fixes the motor (15) to the housing (12), and a temperature sensor (43) that measures a temperature of the switching element (40). The drive circuit (47) stops supplying power to the motor (15) when the temperature measured by the temperature sensor (43) reaches a predetermined temperature. The fixture (37) functions to radiate heat from the switching element (40). |
