Abstract: 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.

Abstract: 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.

Abstract: The disclosure provides a level shifter circuit. The level shifter circuit includes a first transistor and a second transistor. The first transistor and the second transistor generate an output voltage according to a first control signal and a second control signal, respectively. A time interval of rising edges of the output voltage is greater than a time interval of falling edges of the output voltage.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A blower includes a housing, and an impeller and a motor received in the housing. The motor drives the impeller to rotate. The motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and teeth extending from the yoke. A distal end of each of the teeth forms a tooth tip, with a slot opening formed between each two adjacent tooth tips. The rotor includes a permanent magnet forming a plurality of magnetic poles. The stator and the rotor define an air gap therebetween. A circumferential width of the slot opening is equal to or less than two times of a radial width of the air gap.

Abstract: An outer-rotor motor includes a support base, a stator attached around the support base, and a rotor rotatably mounted to the stator. The support base includes a substrate and a bearing holder separately formed and assembled together. A through hole is formed in a central area of the substrate. The bearing holder includes a first end engaged with the through hole and a second end protruding in a direction away from the substrate.

Abstract: A blower includes a housing, and an impeller and a motor received in the housing. The motor drives the impeller to rotate. The motor includes a stator and a rotor. The stator includes a stator core and windings wound around the stator core. The stator core includes a yoke and teeth extending from the yoke. A distal end of each of the teeth forms a tooth tip, with a slot opening formed between each two adjacent tooth tips. The rotor includes a permanent magnet forming a plurality of magnetic poles. The stator and the rotor define an air gap therebetween. A circumferential width of the slot opening is equal to or less than two times of a radial width of the air gap.

Abstract: A single phase permanent magnet brushless motor includes a stator and a rotor. The stator includes an outer housing, a stator core mounted in the outer housing, and windings wound around the stator core. The stator core includes a yoke and a plurality of poles extending inwardly from the yoke. The yoke is fixed to the outer housing by welding. Reliability of the present motor is enhanced.

Abstract: A method of molding PE-RT pipeline includes processes of: extrusion molding a PE-RT pipe; and injection molding a connector of the PE-RT pipe. Wherein, the process of performing extrusion molding of the PE-RT pipe is similar to an ordinary pipe extrusion molding process. The process of performing injection molding of the connector for the PE-RT pipe includes following steps: positioning, to put the PE-RT pipe around and through the core of a rotation device on a rotation disk; using the rotation device to bring the PE-RT pipe to a hot air device, to melt the connector region to a highly elastic state; bringing the PE-RT pipe into rotation to perform injection molding for the connector region of the connector; and popping out, using the rotation device to bring the PE-RT pipe into rotation counterclockwise to a pop-out device, to pop out a PE-RT pipeline.

Abstract: An optical system for a laser level is described. The laser level includes at least two optical systems which are parallel to and oppositely adjoin to each other in a same plane. Each optical system includes a laser light source, a regular lens, a diffusion lens, a beam-splitting element, and an outer casing as well as the regular lens and the diffusion lens are located between the laser light source and the beam-splitting element. For the optical system of the laser level, the laser beam is sequentially regularized, diffused and split into a fan-shaped light beam with an angle greater than 180 degrees to ensure that the light beams from the optical systems are spread in the same plane. Thus, the laser level generates a disk-shaped light beam with 360 degrees to indicate a circular mark in the same plane.