H02K37/18

Motor having stator assembly with integrated mounting and heat sink features

A step motor integrates its mounting face and heat sink into the stator design. In particular, mounting holes (typically, four in number) are provided through the stator stack in outer perimeter areas. The stator stack itself becomes the mounting surface, allowing the heat generated from the stator to conduct directly to the mounting plate. The front end cap for holding the rotor in alignment is situated inside of the stator's mounting surface and takes no part in mounting the motor to the mounting surface. The end caps only hold the rotor in proper relation within the stator and contain the bearing assembly for the rotor's axial drive shaft. The perimeter of the stator assembly between the mounting screw holes may have saw-tooth cutouts that define heat-dissipation fins.

Hybrid type stepping motor

A hybrid stepping motor has a connector housing formed integrally with an insulator having an upper insulator and a lower insulator. The hybrid stepping motor includes a stator core and output terminals concentrically disposed outside the stator core. A wiring pattern serving as the output terminals has connector pins and land portions disposed eccentrically with respect to one another. The land portions are formed on an outer edge side of the wiring pattern. A surface, which is an uppermost surface of the wiring pattern, is located below a lowermost surface, in which jumper wires and lead wires pass, of the lower insulator. The lead wires are pulled out from a lower side, and are pulled out to guiding grooves.

Hybrid type stepping motor

A hybrid stepping motor has a connector housing formed integrally with an insulator having an upper insulator and a lower insulator. The hybrid stepping motor includes a stator core and output terminals concentrically disposed outside the stator core. A wiring pattern serving as the output terminals has connector pins and land portions disposed eccentrically with respect to one another. The land portions are formed on an outer edge side of the wiring pattern. A surface, which is an uppermost surface of the wiring pattern, is located below a lowermost surface, in which jumper wires and lead wires pass, of the lower insulator. The lead wires are pulled out from a lower side, and are pulled out to guiding grooves.

System hinge assembly

A system can include a housing; a hinge assembly operatively coupled to the housing for rotation of the housing about a hinge axis, where the hinge assembly includes permanent magnets that generate a first magnetic field and a second magnetic field orientable with respect to each other via rotation of the housing, where the first magnetic field and the second magnetic field include an aligned orientation, generate a clockwise restoring torque responsive to rotation of the housing in a first rotational direction from the aligned orientation, and generate a counterclockwise restoring torque responsive to rotation of the housing in a second, opposite rotational direction from the aligned orientation; and an electromagnetic mover operatively coupled to the housing for rotation of the housing about the hinge axis.

System hinge assembly

A system can include a housing; a hinge assembly operatively coupled to the housing for rotation of the housing about a hinge axis, where the hinge assembly includes permanent magnets that generate a first magnetic field and a second magnetic field orientable with respect to each other via rotation of the housing, where the first magnetic field and the second magnetic field include an aligned orientation, generate a clockwise restoring torque responsive to rotation of the housing in a first rotational direction from the aligned orientation, and generate a counterclockwise restoring torque responsive to rotation of the housing in a second, opposite rotational direction from the aligned orientation; and an electromagnetic mover operatively coupled to the housing for rotation of the housing about the hinge axis.

Skipping and rolo-skip electrical motors
10468958 · 2019-11-05 · ·

A stepper motor comprising: a stator and a rotor; a plurality of N greater than two electromagnets mounted to the stator or to the rotor, each of the electromagnets comprising a core having at least one contact surface, wherein the at least one contact surface of any of the cores is rotatable about a same first axis of rotation with a same first radius of rotation into substantial congruence with at least a portion of the at least one contact surface of any other of the electromagnet cores; and a coupling of the rotor to the stator configured to enable rotation of the rotor and contact of the stator and rotor along at least one contact surface during operation of the motor.

Skipping and rolo-skip electrical motors
10468958 · 2019-11-05 · ·

A stepper motor comprising: a stator and a rotor; a plurality of N greater than two electromagnets mounted to the stator or to the rotor, each of the electromagnets comprising a core having at least one contact surface, wherein the at least one contact surface of any of the cores is rotatable about a same first axis of rotation with a same first radius of rotation into substantial congruence with at least a portion of the at least one contact surface of any other of the electromagnet cores; and a coupling of the rotor to the stator configured to enable rotation of the rotor and contact of the stator and rotor along at least one contact surface during operation of the motor.

Hybrid electrical machine
10432076 · 2019-10-01 · ·

A hybrid electric machine includes N phases (N1), each phase having first and second assemblies movable relative to one another and each having a set of teeth made up of a number of teeth that are equally distributed according to a plurality of periods, in which: a. the first assembly is made up of two magnetized parts, each including a magnet magnetically coupled with two toothed yokes, the magnet of one of the magnetized parts being polarized along the same axis but in the opposite direction to the polarization of the magnet of the second magnetized part; b. the second assembly including at least two toothed zones with pitches identical to the pitch of the toothed yokes; c. one of the assemblies has at least two sets of teeth in phase, and the other assembly has at least two sets of teeth which are out of phase by a half-period.

Hybrid electrical machine
10432076 · 2019-10-01 · ·

A hybrid electric machine includes N phases (N1), each phase having first and second assemblies movable relative to one another and each having a set of teeth made up of a number of teeth that are equally distributed according to a plurality of periods, in which: a. the first assembly is made up of two magnetized parts, each including a magnet magnetically coupled with two toothed yokes, the magnet of one of the magnetized parts being polarized along the same axis but in the opposite direction to the polarization of the magnet of the second magnetized part; b. the second assembly including at least two toothed zones with pitches identical to the pitch of the toothed yokes; c. one of the assemblies has at least two sets of teeth in phase, and the other assembly has at least two sets of teeth which are out of phase by a half-period.

SKIPPING AND ROLO-SKIP ELECTRICAL MOTORS
20190280581 · 2019-09-12 ·

A stepper motor comprising: a stator and a rotor; a plurality of N greater than two electromagnets mounted to the stator or to the rotor, each of the electromagnets comprising a core having at least one contact surface, wherein the at least one contact surface of any of the cores is rotatable about a same first axis of rotation with a same first radius of rotation into substantial congruence with at least a portion of the at least one contact surface of any other of the electromagnet cores; and a coupling of the rotor to the stator configured to enable rotation of the rotor and contact of the stator and rotor along at least one contact surface during operation of the motor.