Abstract: The aim of the invention is to provide pivoting and rotary drives for electric machines with low number of parts economically. Said aim is achieved, by means of a secondary part (4) of circular or arched design. The primary part of the drive has at least two straight primary part segments (1), arranged at a predefined angle to each other in the longitudinal direction thereof to correspond to the shape of the secondary part (4). A pivoting or rotary drive can thus be economically produced with standard linear motor components.

Abstract: An electromechanical device includes a rotor and a stator, wherein the stator includes multiple teeth excitable by a coil. The stator is formed from multiple stator sections with one section having a protrusion in spaced relation with a first tooth and a second section having a second protrusion in spaced relation with a second tooth. The protrusions have voids for receiving opposing protrusions in an overlapping manner to integrally form the first stator section with the second stator section. The electrical coil is extended around at least a portion of one tooth before mating the multiple stator sections. The rotor has a diametral magnetized magnet extending into the aperture.

Abstract: An electromagnetic step-by-step wobbling micromotor comprises an inner component and an annular component being external to the inner one. The outer component may be a stator and the inner component a rotor, or vice versa. The inner component has three or more poles with a winding on each pole, and an external surface facing an internal surface of the outer component. During the operation of the micromotor each winding is powered. The external and internal surfaces have toothed surfaces. Each tooth has a peak radius which is different from the valley radius.

Abstract: The present invention discloses an electromagnetic coil means, comprising a terminal part and pins passing through the terminal part, wherein the pins are divided into a first group of pins connected with an upper coil stator and a second group of pins connected with a lower coil stator which are spaced apart from each other; the first group of pins comprises first outer sections with first head portions and first inner sections with first root portions; the second group of pins comprising second outer sections with second head portion and second inner sections with second root portions; the first and second head portions extend out from a pin leading-out surface of the terminal part, characterized in that, at least one group of the first and second groups of pins are bent, and a distance between adjacent said first and second head portions is larger than that between adjacent said first and second root portions.

Abstract: A stepping motor includes: a cylindrical rotor assembly disposed around the rotation axis; a stator assembly including two stator units disposed around the rotor assembly and axially coupled to each other; and a terminal structure disposed at the axial center of the outer circumference of the stator assembly. The terminal structure includes: a terminal block cluster composed of four terminal blocks; and four terminals fixed respectively to the four terminal blocks. The four terminals each include: an internal connection portion to which one of two wire ends of the winding is connected; and an external connection portion which is disposed substantially parallel to the internal connection portion and which is connected to a driving circuit disposed externally. The four terminals are arranged in a line along a direction substantially orthogonal to the rotation axis, and the internal connection portion and the external connection portion are aligned along the rotation axis.

Abstract: A motor includes: a rotor having permanent magnets in which N-poles and S-poles are alternately arranged in the circumferential direction; seven stator pole groups, each of which has a plurality of stator poles arranged in the circumferential direction, the stator pole groups being arranged with the circumferential and axial positions of the stator poles in one stator pole group being offset from those of other stator pole groups; and a plurality of loop windings formed in the circumferential direction and arranged at positions adjacent to the plurality of stator pole groups in the rotor shaft direction.

Abstract: A stepping motor includes a housing, a supporting shaft, a rotor, and a stator. The housing includes a first wall and a second wall facing each other. The supporting shaft is inserted into a through hole of the rotor and is held by the first wall and the second wall. The rotor has a first end face and a second end face in an axial direction of the rotor. The first end face and the second end face are separated from the first wall and the second wall, respectively. A lubricant fills between the through hole and the supporting shaft, and an oil repellent agent is applied at a predetermined first area of the first wall around the supporting shaft and a predetermined second area of the second wall around the supporting shaft.

Abstract: A driving apparatus that can be made compact, without increasing the number of component parts and decreasing diameters of a rotating shaft and bearings. When a first unit assembled from a first stator and a first bobbin is coupled to a second unit assembled from a second stator and a second bobbin, engaging portions of the first bobbin are caused by a first switching member to shift from a disengaged state from the first stator to an engaged state with the first stator, and a second switching member, and engaging portions of the second bobbin are caused by a second switching member to shift from a disengaged state from the second stator to an engaged state with the second stator.