| 摘要 |
An electric power tool is provided. The electric power tool includes a motor housing having inlet and outlet slots and an electric motor received within the motor housing. The electric motor is configured to drive a working spindle. The electric power tool includes a ventilation device disposed within the motor housing and configured to generate an airflow between the inlet and outlet slots. The electric power tool also includes an airflow gear case attached to the motor housing. The airflow gear case having an opening to receive the working spindle and bearings. An airflow sleeve covers the airflow gear case, wherein at least a portion of the airflow received from the motor housing is introduced along an airflow path defined by the airflow gear case and the airflow sleeve.
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