Working device
US12151357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2023 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Feb 10, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25F5/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a working device, comprising a working portion and a grip portion. The working portion comprises a driving component and a working component driven by the driving component. The driving component comprises an electric motor and an electric motor housing. The electric motor housing comprises a housing body and a connecting portion located on a rear side of the housing body. At least one air intake hole is formed in the connecting portion, and is in communication with an inner cavity of the housing body. In the working device of the present invention, the driving component is provided with an air intake hole to allow air for cooling an electric motor to enter the interior of the driving component. Further, the working portion can be rotated with respect to the grip portion so as to have an increased working angle, and it can also be ensured that at least one air intake hole is always in communication with the outside when the working portion is in any angular position, so that the use efficiency of the electric motor can be ensured under any use condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.