- 专利标题: MOTOR BRAKING SYSTEM AND METHOD FOR POWER TOOLS
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申请号: EP15862627申请日: 2015-11-23
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公开(公告)号: EP3224941A4公开(公告)日: 2018-07-18
- 发明人: ASSALIYSKI MARIN , KOEGEL JAN
- 申请人: BOSCH GMBH ROBERT
- 专利权人: BOSCH GMBH ROBERT
- 当前专利权人: BOSCH GMBH ROBERT
- 优先权: US201462083364 2014-11-24
- 主分类号: H02P3/14
- IPC分类号: H02P3/14 ; B27B5/29 ; H02P3/24 ; H02P7/298
摘要:
A braking system for a universal motor having field windings includes a motor control circuit connecting the field windings to an external power supply, an energy storage device connected to the motor control circuit across the field windings, and a controller operably coupled to the motor control circuit and configured in a braking mode to disconnect the field windings from the external power supply and to connect the energy storage device to the field windings to produce a braking torque in the motor. The motor may further include brake windings that are selectively connected by the controller to a second energy storage device in the braking mode so that the braking torque is generated by both the field windings and the brake windings.
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