Abstract: A voltage regulator device provided in a bearing of a rotary electric machine of a motor vehicle. The regulator device comprises a support and at least one electronic component configured to participate in the control of the electric machine. The support comprises a first part on which the at least one electronic component is mounted. The first part having an edge equipped with a brush holder provided with at least one brush-holder receptacle configured to accommodate a brush for making an electrical connection with a rotor of the electric machine. The device is configured to allow air to flow through the first part of the support, in contact with the brush holder. The device includes at least one air circulation slot provided through the support between the first part and the brush-holder. The support covers an air opening in the bearing.

Abstract: A MEMS device includes a substrate, a moving part including a magnetic material and configured to tilt relative to the substrate, a first magnetic pole and a second magnetic pole configured to apply a magnetic field to the magnetic material, and a magnetic field detector configured to detect the magnetic field of the magnetic material. In the MEMS device, the first magnetic pole and the second magnetic pole are disposed on one side of the moving part, the one side being a side on which the magnetic material is located. The magnetic field detector is disposed between the first magnetic pole and the second magnetic pole. A distance between the first magnetic pole and the second magnetic pole is shorter than a length of the moving part in a direction from the first magnetic pole toward the second magnetic pole.

Abstract: An overmolded stator for use in an electric motor is disclosed. The stator core includes a yoke and a plurality of arcuately spaced apart teeth extending at least substantially radially from the yoke. Each of the teeth presents opposite axially spaced apart endmost surfaces, a leg extending generally radially from the yoke, and a head extending generally arcuately relative to the leg to present opposite head ends spaced from the leg. A pair of wire retention wings extend at least substantially circumferentially outwardly relative to each of the teeth.

Abstract: A drive unit for a motor vehicle includes an electric machine which has a stator, a rotor and clutch for producing a rotary driving connection of the rotor to a drive element. The clutch has a release member which is axially displaceable by an actuating device arranged at least partially in a receiving space surrounded by the stator. The actuating device has an electric actuator drive motor and an actuator drive shaft directed transverse to the axis of rotation of the drive unit. The actuator drive shaft is operatively connected to a release arrangement which includes a rotatable input element which is fixed axially relative to the release member and an output element which is axially displaceable relative to the input element and which is operatively connected to the release member.

Abstract: A high-resolution positioning device has a stator and a rotor, a coil array, arranged on the stator, and having at least three groups of flat coils, wherein each group has at least two single coils and the coil array encloses a free space on the stator, also having permanent magnetically-excited circuits that are situated on, against or in the rotor and form a magnet array which likewise encloses a free space, wherein the free spaces accommodate a position measuring system which has a measuring head having sensors, and an area scale. The device is in the form of a freely suspended, magnetically controlled six-dimensional drive, wherein the measuring head is situated in the coil array free space and the area scale is situated in the magnet array free space, and the rotor is free of drive-related electrical or electronic and, in this regard, live parts.

Abstract: A high torque, low inertia direct drive motor comprises a circular outer stator 21 and a circular inner stator 25 and a ring of magnets 23a, 23b, 23c. The ring of magnets 23a, 23b, 23c is held by a support structure 31, said ring of magnets 23a, 23b, 23c positioned between the circular outer stator 21 and the circular inner stator 25. The circular outer stator 21 and ring of magnets and circular inner stator and ring of magnets are separated by an air gap. The circular outer stator 21 and circular inner stator 25 each have a plurality of teeth with coils wound around the teeth. The teeth of the circular inner stator 44a, 44b, 44c are aligned in the same radial direction as the teeth of the circular outer stator 46a, 46b, 46c.

Abstract: An electric machine includes a primary section, a secondary section interacting with the primary section via an air gap during operation of the electric machine, and a first base element fastened to the secondary section. The base element includes a first pole shoe having a first end and a second end, with the second end of the first pole shoe facing the air gap, a second pole shoe having a first end and a second end, with the second end of the second pole shoe facing the air gap, and a permanent magnet disposed between the first pole shoe and the second pole shoe. The permanent magnet has a magnetization from the first pole shoe to the second pole shoe, and is formed by a matrix with a magnetically active material embedded therein.

Abstract: A terminal board includes a base portion with a length; a plurality of terminals extending from the base portion; and a plurality of barriers extending from the base portion between terminals and having a barrier spacing distance between each barrier. The ratio of length to barrier spacing distance is at least 5.124:1. The terminal board can be connected to a starter-generator housing for outputting power from the starter-generator.

Abstract: An electric motor comprises a shaft, an interior magnet rotor core comprising a central bore and a pair of opposing ends faces, and at least one resilient structure inserted within the central bore between the pair of opposing end faces. The at least one resilient component is inserted within the central bore between the pair of opposing end faces such that the at least one resilient component does not extend beyond one of the opposing end faces. The resilient component comprises an outer rigid structure inserted within the central bore, a resilient component inserted within the outer rigid structure, and an inner rigid structure inserted within the resilient component, wherein the shaft is inserted through the inner rigid structure.

Abstract: An electromagnetic actuator including: a core comprising a material having a high magnetic permeability relative to air; an array of coils sequentially arranged on the core, each coil of the array of coils being wound around the longitudinal axis of the core; and a magnet assembly movably mounted along the array of coils, the magnet assembly having a coil side facing the array of coils and an opposite side facing away from the array of coils and including an array of permanent magnets sequentially arranged along the array of coils in a direction parallel to the longitudinal axis, wherein the magnetic moments of the plurality of magnets are selected and arranged to augment the magnetic field produced on the coil side of the magnet assembly and to reduce the magnetic field produced on the opposite side of the magnet assembly.

Abstract: A motor for a cooling fan of a vehicle has a rotor including a driving shaft mounted so as to be rotatable in a stator and a bowl-shaped metal case, having a lateral skirt wall which extends around the stator, and having a bottom wall in which there is constructed a tubular fixing formation through which the shaft extends and which is fixed to the shaft. The tubular fixing formation of the rotor case has an internal diameter which is greater than the diameter of the driving shaft. The motor further has an intermediate insert including a tubular portion which is fixed to the shaft and on which there is fixed the tubular formation of the rotor case, and a transverse connecting portion which extends adjacent to the external surface of the bottom wall of the rotor case, and which is connected or connectable to the impeller.

Abstract: According to the present invention there is provided an actuator comprising, a movable member, the movable member comprising a support frame which is configured such that it can oscillate about a first oscillation axis and a mirror which is fixed to the support frame such that oscillation of the support frame will effect oscillation of the mirror; an coil, which cooperates with the support frame; one or more boundary portions provided between the support frame and the mirror which reduce the influence of warp transmitted from an edge of the support frame to the mirror, as the support frame oscillates about the first oscillation axis; wherein the support frame further comprises one or more cut-out regions, wherein the one or more cut-out regions are configured to be parallel to at least a portion of the coil, to reduce stress on the coil as the support frame oscillates about the first oscillation axis and/or to reduce the temperature dependence of the properties of the actuator.

Abstract: A vibration motor includes a housing, a coil, a moving portion, an elastic member and a roller member. The housing has a top surface, a bottom surface, and first to fourth side surfaces joining the top surface to the bottom surface, the first to fourth surfaces defining an inner circumferential surface of the housing. The coil is provided in the housing. The moving portion provided in the housing and the moving portion is configured to reciprocate between the first and third sides arranged opposite to each other. The elastic member is provided between the moving portion and the housing. The roller member is provided in the housing and arranged to come into rolling contact with the top or bottom surface of the housing.

Abstract: A super conducting synchronous machine including a rotor which may rotate in relation to a stator and which has at least one super-conducting winding which is cooled by means of a cooling machine is provided. The cooled areas of the rotor are surrounded at least partially by a vacuum chamber rotating with the rotor. A pump line connecting the vacuum chamber to a vacuum pump is provided in a connection area produced by means of at least two rotational seals, fixed in relation to a rotor and defining the vacuum chamber.

Abstract: The present disclosure relates to an apparatus for the generation of a unidirectional electrical signal. The apparatus may include at least one magnet defining a magnetic field, a rotor disc of substantially no magnetic permeability comprising at least one magnetic field interrupter of magnetically permeable material positioned at a first radial distance from a center axis of the rotor disc, the rotor positioned so as to, upon rotation of the rotor disc, cause the at least one interruptor to pass through the magnetic field, and an electrical conductor extending across the magnetic field, whereby as the at least one interrupter passes through the magnetic field, the magnetic field is distorted by the interrupter thereby inducing a unidirectional electric signal in the conductor. The at least one magnet may be an electromagnet or a permanent magnet. The at least one magnetic field interrupter may be made of soft iron.

Abstract: The invention relates to an electric machine supplied with air for cooling purposes. The air is heated during operation of the electric machine and is removed in the form of exhaust air. The electric machine is equipped with a fan wheel (70) which is coupled to a rotor of the electric machine. To improve and to simplify the operation of the electric machine, the fan wheel (70) is designed as a precise steel part with a sensor device (71) for detecting a rotational speed of the fan wheel (50; 70) and thereby detecting a rotational speed of the rotor.

Abstract: An electrical motor for a submersible machine, including a stator unit having a stator core and a rotor unit that is rotatably arranged in the stator unit. The rotor unit includes a rotor core and at least one permanent magnet. The rotor core has an outer diameter that is smaller than an inner diameter of the stator core. The rotor unit includes a brake, the radially outer surface of which is inscribed on a circle having a diameter that is greater than the outer diameter of the rotor core. At least a part of the brake is arranged to abut against an inner surface of the stator core upon mutual axial displacement of the rotor unit and the stator unit. The brake is spaced-apart from the stator core when the rotor unit is in the mounted state in the stator unit.

Abstract: The present device is applied to a linear driving unit which comprises: a linear electric motor (M) formed by a motor housing (C) which is electrically excited and affixed to a fixed structure (1), and by a magnetic armature (A) which is displaced in a reciprocating axial movement; and a helical resonant spring (50) having an end coupled to the fixed structure (1) and an opposite end coupled to the magnetic armature (A). The deformation control device (60) is mounted to contact a surface extension of the resonant spring (50), which is elastically and radially deformed, and to generate friction with said surface extension and/or an elastic deformation in the deformation control device (60), absorbing energy in a value sufficient to at least minimize said radial elastic deformation of the resonant spring (50).

Abstract: A stator includes an annular stator core, a stator coil and at least one protective wall. The stator core has a plurality of slots formed therein. The slots are spaced from one another in a circumferential direction of the stator core. The stator coil is comprised of a plurality of windings mounted on the stator core. The windings are connected in a predetermined manner to form a plurality of connection portions therebetween. The connection portions are located outside the slots of the stator core on one axial side of the stator core. The at least one protective wall is provided radially inside the connection portions of the stator coil so as to shield the connection portions from the radially inside of the stator.

Abstract: In an inner-rotor motor, an armature includes a stator core including an annular core back and magnetic pole teeth projecting from the core back; an insulator covering an upper and lower surface of each magnetic pole tooth of the stator core; and coils defined by a conducting wire wound around a separate one of the magnetic pole teeth with the insulator intervening therebetween. The insulator includes at least one protruding portion. An upper end of each protruding portion is arranged at an axial level higher than an axial level of a lower surface of a circuit board. The circuit board includes at least one penetration portion each of which is defined by a cut or a hole, and in each of which a corresponding one of the at least one protruding portion is arranged.