Handheld work apparatus
AssigneeAndreas Stihl AG & Co. KG
InventorsGeorg Heinzelmann, Gernot Liebhard, Dirk Förstner
Life of this patent
Estimating the term…
Abstract
A handheld work apparatus has an electric drive motor (24) and a power supply unit for the drive motor (24). The power supply unit is arranged in a receptacle (7) of a housing (2) of the work apparatus. The work apparatus has an electronic control (17) and a blower wheel (29) for conveying cooling air. The blower wheel (29) is driven by a drive motor (24). The housing (2) has at least one air inlet opening (10) for cooling air via which the blower wheel (29) draws in a first cooling air flow (22) during operation. A second cooling air flow (23) is drawn into the housing (2) via the receptacle (7).
Claims18
A handheld work apparatus comprising:
- an electric drive motor;
- a power supply unit for said drive motor;
- a housing having a receptacle for said power supply unit;
- an electronic control;
- a fan wheel for moving cooling air;
- said drive motor being configured to drive said fan wheel;
- a housing having at least one air inlet opening for cooling air;
- said fan wheel drawing in a first cooling air flow through said air inlet opening during operation;
- and,
- said work apparatus being configured to facilitate drawing in a second cooling air flow via said receptacle of said power supply unit.
Dependencies are inferred from the claim text.