Abstract: An actuator may include a movable body; a support body; a connecting body; and a magnetic driving circuit. The magnetic driving circuit may include an air-core coil provided in a first member, and a first permanent magnet provided in a second member so as to face the coil on a first side in a first direction. The magnetic driving circuit may cause the movable body to vibrate with respect to the support body in a second direction which intersects with the first direction. The first member may include a coil holder including a plate part through which a coil placement hole is formed, a first plate that overlaps the coil placement hole and the plate part, and an adhesive layer. The coil may include a first holding portion that engages the first plate to hold the first plate.

Abstract: The disclosed apparatus may include (1) a subassembly that includes (a) a plurality of conductive coils, where the coils are arranged into first and second rows that are aligned as adjacent layers along a first direction, and where the rows are offset along the first direction such that two portions of each of the coils are arranged along the first direction without overlapping and each of the two portions of each coil is aligned in parallel along a second direction orthogonal to the first direction, and (b) a body that holds the coils, (2) a structure that generates a magnetic field through the portions of the coils, where the magnetic field is directed along a third direction orthogonal to the first and second directions, and (3) a coil driver circuit that supplies current to at least some of the coils to move the structure relative to the subassembly, or vice-versa, along the first direction. Various other embodiments are also disclosed.

Abstract: An electric motor, in particular an internal rotor motor, with a stator constructed from laminations and with a rotor arranged concentrically in the stator, with a housing surrounding the stator circumferentially, and with two housing caps for axially closing the housing at both ends and for accommodating and carrying a shaft of the rotor, wherein the laminations each have at least three crosspieces arranged on the circumference for creating at least one coolant channel between the stator and the housing, and wherein the at least one coolant channel can be bounded by the housing caps in a fluidtight manner.

Abstract: An actuator may include a movable body; a support body; a connecting body; and a magnetic driving circuit. The magnetic driving circuit may include an air-core coil provided in a first member, and a first permanent magnet provided in a second member so as to face the coil on a first side in a first direction. The magnetic driving circuit may cause the movable body to vibrate with respect to the support body in a second direction which intersects with the first direction. The first member may include a coil holder comprising a plate part in which a coil placement hole is formed, a first plate that overlaps the coil placement hole and the plate part, and an adhesive layer. The coil may face the first permanent magnet via the first plate.

Abstract: A multi-degree of freedom electromagnetic machine includes a spherical body, an outer structure, a plurality of magnets, and a plurality of windings. Each of the plurality of windings includes a flexible dielectric substrate and an electrical conductor. The flexible dielectric substrate has an inner surface and an outer surface, and the inner surface of the flexible substrate facies the outer surface of the spherical body. The electrical conductor is disposed on at least one of the inner or outer surfaces of the flexible dielectric substrate.

Abstract: The disclosed apparatus may include (1) a subassembly including (a) a first conductive coil, where at least a portion of the first coil defines a portion of a spherical surface and is oriented along a first direction along the portion of the spherical surface, (b) a second conductive coil proximate the first coil, where at least a portion of the second coil is oriented along a second direction orthogonal to the first direction along the portion of the spherical surface, and (c) a body that holds the coils, (2) a structure that generates a magnetic field through the portion of the first and second coils along a third direction orthogonal to the first and second directions, and (3) a coil driver circuit that supplies current to the coils to move the structure relative to the subassembly, or vice-versa, along the first and second directions. Various other embodiments are also disclosed.

Abstract: Provided is an inverter built-in BLDC motor including: an inverter housing having one side coupled to a motor, an inside formed to be hollow, and the other side formed to be open, and having a PCB substrate provided in the hollow portion; a bearing mounted in a bearing mounting portion of the inverter housing and having a rotating shaft of a rotor of the motor rotatably coupled thereto; and a bearing cover coupled to a bearing mounting groove of the bearing mounting portion mounted with the bearing and formed to close an opening portion of the bearing mounting groove on an inner bottom surface of the inverter housing.

Abstract: The disclosed system may include (1) a subassembly including (a) conductive coils having portions oriented along a first direction, and (b) a body that holds the coils such that the portions are aligned along a second direction orthogonal to the first direction, (2) a structure that generates a magnetic field directed through at least one coil along a third direction orthogonal to the first and second directions, (3) a commutation controller that (a) receives a current command indicating a total amount of current to provide to the coils, and (b) determines, based on a present location of the body along the second direction relative to the magnetic field, a portion of the total amount to supply to each coil, and (4) a coil driver for each coil, where each coil driver supplies the portion of the total amount to the corresponding coil. Various other embodiments are also disclosed.

Abstract: A primary part of a linear motor includes a cooling plate with cooling channels mounted to a side of the primary part that faces away from an air gap of the linear motor. The cooling channels are connected to a coolant inlet and a coolant outlet via channels of a distributor. The channels extend between the cooling plate and winding end turns of the primary part in a direction of movement of the linear motor.

Abstract: An actuator is provided, including a fixed assembly and a movable assembly. The fixed assembly includes a coil module, a base, a first screwing member, and a linear rail. The first screwing member passes through the base and the linear rail, and the linear rail is positioned on the base. The movable assembly includes a U-shaped back board having an inner space, a first magnetic module, a second magnetic module aligned with the first magnetic module, and a sliding block. The first and second magnetic modules are disposed on the U-shaped back board and accommodated in the inner space. The coil module is disposed between the first magnetic module and the second magnetic module. The sliding block is positioned on the U-shaped back board in the inner space, and slidably connected to the linear rail.

Abstract: A linear motor system includes a coil assembly and a magnet assembly disposed adjacent to the coil assembly. The coil assembly includes a plurality of coil windings and a sealing material to seal and to prevent moisture and/or chemical ingress into the coil windings. The magnet assembly includes a plurality of magnets, a magnet housing disposed to house, cover and seal the plurality of magnets within the magnet housing, a plate to cover the plurality of magnets, a sealing element disposed between the plate and the magnet housing to seal the magnet assembly, and a groove formed to receive the sealing element between the plate and the magnet housing.

Abstract: A linear motor system includes a coil assembly and a magnet assembly disposed adjacent to the coil assembly. The coil assembly includes a plurality of coil windings and a sealing material to seal and to prevent moisture and/or chemical ingress into the coil windings. The magnet assembly includes a plurality of magnets, a magnet housing disposed to house, cover and seal the plurality of magnets within the magnet housing, a plate to cover the plurality of magnets, a sealing element disposed between the plate and the magnet housing to seal the magnet assembly, and a groove formed to receive the sealing element between the plate and the magnet housing.

Abstract: A sealed linear motor system is provided. The sealed linear motor system includes a sealed coil assembly having a plurality of coil windings within a base plate and comprising covers disposed about the base plate and coil windings to prevent moisture and/or chemical ingress into the base plate and the coil windings. The sealed linear motor system also includes a sealed magnet assembly disposed adjacent to the coil assembly and comprising a plurality of magnets mounted on a magnet mounting plate and a magnet housing disposed on a surface of the magnet mounting plate to cover and seal the plurality of magnets within the housing.

Abstract: An electromagnetic machine (1) comprises an electrical conductor vane (7) disposed between two magnetic arrays (3). The electrical conductor vane (7) comprises a plurality of electrically insulated conductors (35), wherein when the conductors (35) are disposed in magnetic fields produced by the magnetic arrays (3) and when current flows in the conductors (35), an electromagnetic force is induced to cause movement of the magnetic arrays (3) relative to the electrical conductor vane (7) and wherein the set of conductors (35) substantially fills the gap between the magnetic arrays (3) through which the magnetic fields pass.

Abstract: A motor apparatus includes a movable portion including a coil and a tooth-like salient pole and a platen opposed to the movable portion. The movable portion and the platen move relative to each other by using a magnetic field generated by supplying a current to the coil. The platen includes a base material having a surface on which convex portions and first concave portions are periodically arranged, a first thermally sprayed layer formed on the surface of the base material by thermal spraying such that second concave portions are formed inside the first concave portions, and a resin filled in the second concave portions.

Abstract: A sealed linear motor system is provided. The sealed linear motor system includes a sealed coil assembly having a plurality of coil windings within a base plate and comprising covers disposed about the base plate and coil windings to prevent moisture and/or chemical ingress into the base plate and the coil windings. The sealed linear motor system also includes a sealed magnet assembly disposed adjacent to the coil assembly and comprising a plurality of magnets mounted on a magnet mounting plate and a magnet housing disposed on a surface of the magnet mounting plate to cover and seal the plurality of magnets within the housing.

Abstract: A sliding system with onboard moving-coil linear motor is disclosed in which an armature assembly is a printed-circuit board, armature windings of flat configuration and coil stay having a stay and any number of cores made integral with the stay. The armature assembly is held by virtue of the stay at a preselected location inside an interval defined between field magnet arrays and, therefore, is small and compact in height in transverse section. A bed formed in an angled hook-like configuration in a transverse section contributes to shrinkage of the sliding system in either of height and width in transverse section or most compactness of the sliding system in transverse dimension. Moreover, the bed can be selected in length at discretion according to the purpose of usage to provide any desirable stroke length for a single table of a preselected length, getting the sliding system convenient for usage.

Abstract: A canned linear motor armature comprising an armature winding constituted by a coil group including a plurality of formed coils formed in a flat plate shape. A metal-made chassis is provided to surround the armature winding by a frame-like shape. A can hermetically closes two opening portions of the chassis. The coil group is interposed by a wiring board having a wiring portion and a resin-made frame of a bath tub shape. The frame is opened only at a face side of the wiring board. A periphery of the formed coils surrounded by the wiring board and the frame is configured to be injection-molded by a mold or a potting resin.

Abstract: The invention relates to a secondary part (2, 3) of a linear electrical machine (5), wherein the secondary part (2, 3) has permanent magnets (11) and a mount (13). The secondary part (2, 3) has spacer elements (9), wherein an installation height of the secondary part (2, 3) is also determined by means of the spacer elements (9). Tolerances of the installation height can be maintained more easily by means of the spacer elements. In a method for manufacturing a secondary part (2, 3) of a linear electrical machine (5), the spacer elements (9) are cast together with the mount (13) on which the permanent magnets (9) are arranged such that the permanent magnets (9) are embedded in the casting compound (15) and the casting compound (15) forms the surface of the secondary part (2, 3) in the region of the permanent magnets (11), wherein the spacer elements (9) protrude out of the casting compound (15) such that part of the surface of the secondary part (2, 3) is also formed by the spacer elements (9).

Abstract: The invention concerns a stand (12) for a linear electric motor (14) comprising a primary winding (18) and a secondary winding (20), characterized in that the stand (12) comprises compensating means (52) consisting of elongated slots (58) delimiting connecting bridges (60) and in that said slots (58) constitute cooling openings through which is provided a forced air flow when the stand (12) is moving enabling the primary winding (18) to be cooled.

Abstract: A high power-density power generating module, comprising: a magnet unit having a plurality of adjacent magnets with opposite magnet-pole arrangement against adjacent ones, each with a magnetic north pole and a magnetic south pole; and a winding unit having a plurality of adjacent windings around the adjacent magnets; wherein the magnet unit is capable of moving relatively to the winding unit and the angle between the linking direction of the magnetic north pole and the magnetic south pole of each magnet and the winding surface of each winding is larger than 0 degree and smaller than 90 degrees.

Abstract: In the canned linear motor armature, both the side surfaces of the armature winding (18) are fixed by two winding fixing frames (4) so as to sandwich the armature winding in between them in the longitudinal direction. A refrigerant passage (5) is provided in a space between the can (3) and the winding fixing frame (4). A seal material (24) is provided in a gap between a case (2) and the winding fixing frame (4) to prevent a refrigerant supplied to the refrigerant passage (5) from leaking to the armature winding (18) sandwiched in between the two winding fixing frames (4) to impregnate the armature winding (18) with the refrigerant. A waterproof film is adhered onto a surface of the winding fixing frame (4) where the refrigerant comes into contact.

Abstract: A stator for a reciprocating motor includes a coil winding in which a coil is wound plural times, and fixed and insulated with a bonding material distributed between gaps of the wound coil, an insulation band formed in a circular band shape along an outer circumferential surface of the coil winding, an annular bobbin coupled to both side surfaces of the coil winding and covering the coil winding together with the insulation band, a plurality of core blocks coupled on the bobbin in a circumferential direction, and an inner core inserted with a certain interval from the circular inner circumferential surface formed by the bobbin and the plurality of core blocks.

Abstract: A sliding device with onboard moving-magnet linear motor is envisaged making the reciprocating stroke of a table longer, and enhancing the propulsion, high velocity and response of the table even with small in dimension, compact in construction and better in production efficiency. With the sliding device, a bed serves as a coil yoke while a table is as a magnet yoke. An armature assembly is composed of armature windings, a board on which the armature windings lie in juxtaposition, a wiring lying on the board and making connections with a power line to supply electric power to the armature windings, a protective sheet covering an overall surface of the armature windings and moldings of adhesive material to get the armature windings and connections of a power line with wiring closely adhering to the board.