Beijing Xiaomi Robot Technology Co., Ltd.

Beijing Xiaomi Mobile Software Co., Ltd.

Yiyang Liu

Shuang Li

Wenping Guo

Xiaomao Wei

Fang Zhi

A leg assembly for a legged robot includes first through three motors, first through second legs, and a transmission component. The first motor is coupled to the second motor to drive the second motor to rotate, and a rotation axis of the first motor is substantially orthogonal to a rotation axis of the second motor. The second motor is coupled to the third motor to drive the third motor to rotate, and a rotation axis of the third motor substantially coincides with the rotation axis of the second motor. The third motor is arranged at a first end of the first leg, the second leg is pivotably coupled to a second end of the first leg, and the transmission component is coupled to an output shaft of the third motor and the second leg to drive the second leg to rotate relative to the first leg.

Leg assembly for legged robot and legged robot

A servo motor includes a housing, a rotor, a stator, a planetary reduction mechanism, a first Hall magnet, Hall switches, a second Hall magnet, and a position sensor; the rotor, stator, the planetary reduction mechanism, and the position senor are arranged in the housing. The rotor has a rotor support and a rotor shaft; the planetary reduction mechanism includes a sun gear, a planetary carrier, and planetary gears; a reduction ratio of the planetary reduction mechanism is N:1, where N is a positive integer; the first Hall magnet is arranged on the planetary carrier; the Hall switches correspond to the first Hall magnet and are arranged in the housing at even intervals around a rotation axis of the rotor shaft. The number of Hall switches is N; the second Hall magnet is arranged on the rotor; and the position sensor is opposite the second Hall magnet.

Robot and its servo motor

A leg assembly and a legged robot having same are provided. The leg assembly includes a first leg, a second leg, a motor, an output flange and a transmission component. The motor is arranged at a first end of the first leg, and an output shaft of the motor is connected to the output flange to drive the output flange to rotate. The first leg is pivotably connected to the second leg, and the transmission component is connected to the output flange and the second leg to drive the second leg to rotate relative to the first leg. The output flange is provided with a first limiting portion, the first leg is provided with a first stop portion and a second stop portion spaced apart and configured to stop the first limiting portion, and the first leg is provided with a second limiting portion configured to stop the second leg.

Legged robot and leg assembly thereof

A servo motor and a robot. The servo motor includes: a housing, a rotor, a stator, a Hall magnet, and one printed circuit board. The rotor is arranged in the housing and has a rotor support and a rotor shaft; the stator is arranged in the housing; the Hall magnet is arranged on the rotor; the printed circuit board is arranged in the housing and provided with a position sensor facing the Hall magnet.

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Beijing, China

Yiyang Liu