Failsafe hardware brake mechanism for outdoor power equipment
An apparatus (100) may include a working assembly (220) configured to perform a work function responsive to operation of the working assembly, an electric motor (230) that powers the working assembly, a power source (210) configured to selectively power the electric motor, a control circuitry (240)...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | An apparatus (100) may include a working assembly (220) configured to perform a work function responsive to operation of the working assembly, an electric motor (230) that powers the working assembly, a power source (210) configured to selectively power the electric motor, a control circuitry (240) for controlling operation of the electric motor, and a brake function (270) configured to selectively apply braking to the electric motor responsive to a brake initiation event. The brake function may be configured to apply the braking by short-circuiting motor phase windings of the electric motor without requiring an external power supply during application of the braking.
种设备(100),可包括:工作组件(220),配置为响应于工作组件的操作来执行工作功能;电动机(230),对工作组件提供动力;电源(210),配置为选择性地对电动机供电;控制电路(240),用于控制电动机的操作;以及制动功能(270),其配置为响应于制动启动事件而选择性地对电动机施加制动。制动功能可配置为,通过使电动机的电动机相绕组短路来施加制动,而在施加制动的过程中不需要外部动力供应。 |
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