HAND TOOL MACHINE WITH A CUT-OFF SWITCH
Patent Information
- Application Number
- DE502017017429
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2016-04-11
- Filing Date
- 2017-04-10
- Publication Date
- 2026-09-24
- Estimated Expiration
- 2037-04-10
AI Technical Summary
Existing hand-held machine tools, such as grinding machines, suffer from delayed protection mechanisms in their drive motors, leading to potential damage due to overheating or overloading, which conventional power supply units may not address promptly.
Incorporating locally actuated disconnect switches near the drive motor, such as thermally actuated bimetallic switches, to quickly cut off power to specific phases of the excitation coil assembly in case of faults, eliminating the need for monitoring sensors and data lines, and integrating a brushless motor with a speed-reducing gearbox and optimized power supply unit.
The solution provides rapid protection against motor damage, enhances power efficiency, and reduces wear by minimizing electrical contact points, while maintaining compactness and ease of operation.