Invention Grant
- Patent Title: Adjusting device for an electric motor
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Application No.: US14638252Application Date: 2015-03-04
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Publication No.: US10033256B2Publication Date: 2018-07-24
- Inventor: Andreas Fuchs , Klaus Fiederer , Lars Girsberger , Emiliano Villanova
- Applicant: Marquardt GmbH
- Applicant Address: unknown Rietheim-Weilheim
- Assignee: Marquardt GmbH
- Current Assignee: Marquardt GmbH
- Current Assignee Address: unknown Rietheim-Weilheim
- Agency: Burr & Brown, PLLC
- Priority: DE102009006067 20090124; DE102009006068 20090124
- Main IPC: H02K23/18
- IPC: H02K23/18 ; H02K23/66 ; H02K5/14 ; H02K5/173 ; H02K7/14 ; H02K9/04 ; H02K9/22 ; H02K11/28 ; H02K11/33

Abstract:
A device for reversing the direction of rotation and/or for adjusting the carbon brushes for a reversible electric motor, in particular for an electric hand tool, with a base and with a mount, which is mounted pivotably on the base and on which brushholders for the carbon brushes wiping over the collector of the electric motor are arranged. The electric motor can be driven by means of power electronics, such as a pulse width controller, a phase gating controller, a phase chopping controller or the like. The power electronics are arranged on the base and/or on the mount. The device furthermore has fixed contacts and switching contacts, which interact with alternate contact-making for reversing the direction of rotation of the electric motor as the mount is pivoted.
Public/Granted literature
- US20150180308A1 ADJUSTING DEVICE FOR AN ELECTRIC MOTOR Public/Granted day:2015-06-25
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