Abstract: A device may include a coil unit assembly that includes a first, second, and third coil unit annularly arranged. Further, may include a busbar provided on an outer peripheral surface of the coil unit assembly, wherein when a direction in which an axis of the stator extends is defined as an axial direction, a direction which is orthogonal to the axial direction and in which outer peripheral surface and inner peripheral surface of the stator face each other is a radial direction, and a direction along an outer periphery of the stator when viewed from the axial direction is a circumferential direction, wherein the coil units each include a split core that includes a tooth that extends in the radial direction, an insulator mounted to overlap at least the tooth of the split core, and a coil that includes a winding wound around the tooth of the split core with the insulator interposed therebetween.

Abstract: A motor that includes a plurality of stator members and a busbar member. The busbar member connects to coil end portions of a predetermined stator member of the plurality of stator members. The busbar member may comprise a first busbar, a second busbar, and a third busbar. The busbars may include an annular-shaped base portion, and a connection terminal connected to an outer circumference of the base portion and connected to the coil end portions. The busbar member and the plurality of stator members may be aligned in an axial direction. Each connection terminal of the busbars may have a shape projecting toward the stator member relative to the base portion.

Abstract: A stator member includes a stator core, a coil, and an insulator. The stator core has a shape extending in an axial direction, and has a side surface parallel to the axial direction. The coil has a linear shape and is wound around the side surface of the stator core. The coil has a coil end portion 231 at one end of the coil having the linear shape, and a coil end portion 232 at another end of the coil having the linear shape. The insulator has insulation properties, and is provided with an outer member. The outer member has a first recess and a second recess extending in a thickness direction. The coil end portion 231 is inserted into the first recess. The coil end portion 232 is inserted into the second recess.

Abstract: A stator member may include a columnar stator core, a linear coil, and an insulating insulator. The linear coil may be wound around the stator core. The insulator may be disposed between the stator core and the coil. Furthermore, the insulator may include a central member and an outer member. The central member may cover the stator core. The outer member may be connected to an outside of the central member in an axial direction of the stator core. The outer member may include a surface extending in a thickness direction in which the central member and the outer member are arranged, and a groove recessed in a direction orthogonal to the thickness direction from the surface. A connection terminal of a busbar member may be inserted into the groove.

Abstract: A motor that includes a plurality of stator members and a busbar member. A coil may be wound around each of the plurality of stator members, and the plurality of stator members may be arranged in an annular shape when viewed in an axial direction of the motor. The busbar member may connect to the coil ends of the plurality of stator members. The busbar member may comprise an annular shaped base portion, and a connection terminal connected to the base portion and connected to the coil end portions. The connection terminal may be provided with two recesses. The coil end portion of a first stator member and the coil end portion of a second stator member may be inserted through the two recesses respectively, where the first stator member and the second stator member are adjacent to each other.

Abstract: A motor that includes a plurality of stator members and a busbar member. A coil may be wound around each of the plurality of stator members, and the plurality of stator members may be arranged in an annular shape when viewed in an axial direction of the motor. The busbar member may connect to the coil ends of the plurality of stator members. The busbar member may comprise an annular shaped base portion, and a connection terminal connected to the base portion and connected to the coil end portions. The connection terminal may be provided with two recesses. The coil end portion of a first stator member and the coil end portion of a second stator member may be inserted through the two recesses respectively, where the first stator member and the second stator member are adjacent to each other.

Abstract: A motor that includes a plurality of stator members and a busbar member. The busbar member connects to coil end portions of a predetermined stator member of the plurality of stator members. The busbar member may comprise a first busbar, a second busbar, and a third busbar. The busbars may include an annular-shaped base portion, and a connection terminal connected to an outer circumference of the base portion and connected to the coil end portions. The busbar member and the plurality of stator members may be aligned in an axial direction. Each connection terminal of the busbars may have a shape projecting toward the stator member relative to the base portion.

Abstract: A stator member may include a columnar stator core, a linear coil, and an insulating insulator. The linear coil may be wound around the stator core. The insulator may be disposed between the stator core and the coil. Furthermore, the insulator may include a central member and an outer member. The central member may cover the stator core. The outer member may be connected to an outside of the central member in an axial direction of the stator core. The outer member may include a surface extending in a thickness direction in which the central member and the outer member are arranged, and a groove recessed in a direction orthogonal to the thickness direction from the surface. A connection terminal of a busbar member may be inserted into the groove.

Abstract: A stator member includes a stator core, a coil, and an insulator. The stator core has a shape extending in an axial direction, and has a side surface parallel to the axial direction. The coil has a linear shape and is wound around the side surface of the stator core. The coil has a coil end portion 231 at one end of the coil having the linear shape, and a coil end portion 232 at another end of the coil having the linear shape. The insulator has insulation properties, and is provided with an outer member. The outer member has a first recess and a second recess extending in a thickness direction. The coil end portion 231 is inserted into the first recess. The coil end portion 232 is inserted into the second recess.

Abstract: A busbar device includes an insulating sheet that is annularly formed by laminating an insulating layer and an adhesive layer and also includes an annular busbar. Moreover, the busbar is adhered to the adhesive layer. The insulating sheet and the busbar are laminated in a direction parallel to a central axis of the busbar.

Abstract: A prestored database indicating a correspondence of ? (depth)/?HcJ (coercivity increment) and a prestored database indicating information of Dy diffusion condition (diffusion coefficient, diffusion flux and processing time regarding Dy diffusion) are used to compute distribution of Dy introduction amount in a magnet from shape information of the magnet and information of a Dy introduction face and compute distribution of ?HcJ in the magnet from the distribution of Dy introduction amount. Regarding a magnet having a coercivity that is distributed non-uniformly, a J/H curve is computed using the computed distribution of ?HcJ, and a demagnetizing factor at a predetermined temperature is computed using a temperature coefficient.

Abstract: A prestored database showing a correspondence of ? (depth)/?HcJ (coercivity increment) and a prestored database showing a correspondence of Dy introduction amount/?HcJ are used to obtain distribution of an introduction amount in a magnet from shape information of the magnet and information of a Dy introduction face and compute distribution of ?HcJ in the magnet from the distribution of a Dy introduction amount. Regarding a magnet having a coercivity that is distributed non-uniformly, a J/H curve is computed using the computed distribution of ?HcJ, and a demagnetizing factor at a predetermined temperature (100° C.) is computed using a temperature coefficient.

Abstract: A method for producing a radially anisotropic ring magnet having at least one axial groove on the inner surface comprises using a die comprising a cylindrical, magnetic core, a magnetic sleeve having an axial ridge in alignment with the groove on the outer surface and disposed on an outer peripheral surface of the core, and an outer, cylindrical die member defining a cavity for forming the ring magnet with the magnetic sleeve, and compression-molding magnet powder charged into the cavity while applying a magnetic field in a radial direction, and a radially anisotropic ring magnet substantially having a composition of R-TM-B, wherein R is at least one of rare earth elements including Y, TM is at least one of transition metals, and B is boron, having at least one axial groove on the inner surface, and magnetized such that centerlines between magnetic poles do not overlap grooves.

Abstract: A method for producing a radially anisotropic ring magnet having at least one axial groove on the inner surface comprises using a die comprising a cylindrical, magnetic core, a magnetic sleeve having an axial ridge in alignment with the groove on the outer surface and disposed on an outer peripheral surface of the core, and an outer, cylindrical die member defining a cavity for forming the ring magnet with the magnetic sleeve, and compression-molding magnet powder charged into the cavity while applying a magnetic field in a radial direction, and a radially anisotropic ring magnet substantially having a composition of R-TM-B, wherein R is at least one of rare earth elements including Y, TM is at least one of transition metals, and B is boron, having at least one axial groove on the inner surface, and magnetized such that centerlines between magnetic poles do not overlap grooves.

Abstract: A prestored database indicating a correspondence of ? (depth)/?HcJ (coercivity increment) and a prestored database indicating information of Dy diffusion condition (diffusion coefficient, diffusion flux and processing time regarding Dy diffusion) are used to compute distribution of Dy introduction amount in a magnet from shape information of the magnet and information of a Dy introduction face and compute distribution of ?HcJ in the magnet from the distribution of Dy introduction amount. Regarding a magnet having a coercivity that is distributed non-uniformly, a J/H curve is computed using the computed distribution of ?HcJ, and a demagnetizing factor at a predetermined temperature is computed using a temperature coefficient.

Abstract: A permanent magnet motor includes: a rotor and a stator; and a plurality of permanent magnets placed on either the rotor or the stator. Each permanent magnet is an R—Fe—B based rare-earth sintered magnet including a light rare-earth element RL (at least one of Nd and Pr) as a major rare-earth element R, and partially includes a high coercivity portion in which a heavy rare-earth element RH (at least one element selected from the group consisting of Dy, Ho and Tb) is diffused in a relatively higher concentration than in the other portion.

Abstract: There is provided a magnetic field control method and a magnetic field generator which are capable of moving a local maximum point of magnetic field intensity on a predetermined plane easily to any given point within a predetermined area on the predetermined plane. A magnetic field generator 10 includes a pair of permanent magnets 16a, 16b provided axially of a predetermined axis A, with a gap G in between. The permanent magnet 16a is formed on a drive unit 14a in such a way that a center region 30a of a first main surface 26a is off the predetermined axis A. The permanent magnet 16b is formed on a drive unit 14b in such a way that a center region 30b of a first main surface 26b is off the predetermined axis A. The permanent magnet 16a revolves on a path R1 as a rotating member 24a rotates. The permanent magnet 16b revolves on a path R2 as a rotating member 24b rotates.

Abstract: A prestored database showing a correspondence of ? (depth)/?HcJ (coercivity increment) and a prestored database showing a correspondence of Dy introduction amount/?HcJ are used to obtain distribution of an introduction amount in a magnet from shape information of the magnet and information of a Dy introduction face and compute distribution of ?HcJ in the magnet from the distribution of a Dy introduction amount. Regarding a magnet having a coercivity that is distributed non-uniformly, a J/H curve is computed using the computed distribution of ?HcJ, and a demagnetizing factor at a predetermined temperature (100° C.) is computed using a temperature coefficient.

Abstract: It is possible to perform accurate magnetization analysis by considering the magnetic state of an incomplete magnetic region. A magnetization analysis device performs magnetization analysis by using a magnetizer parameter associated with a magnetizer and a magnet parameter associated with a magnet material so as to calculate a magnetization magnetic field applied to respective portions of the magnet material (S17), calculates a recoil ratio permeability and a coercivity as region of a permanent magnet as an analysis object for the respective portions according to the calculation result of the magnetized magnetic field and the demagnetization curve associated with the incomplete magnetization region actually measured in advance (S18), and performs a magnetic field analysis by using the calculation result of the region parameter so as to calculate a state parameter indicating the magnetized state of the permanent magnet as an analysis object (S19).

Abstract: A method for producing a radially anisotropic ring magnet having at least one axial groove on the inner surface comprises using a die comprising a cylindrical, magnetic core, a magnetic sleeve having an axial ridge in alignment with the groove on the outer surface and disposed on an outer peripheral surface of the core, and an outer, cylindrical die member defining a cavity for forming the ring magnet with the magnetic sleeve, and compression-molding magnet powder charged into the cavity while applying a magnetic field in a radial direction, and a radially anisotropic ring magnet substantially having a composition of R-TM-B, wherein R is at least one of rare earth elements including Y, TM is at least one of transition metals, and B is boron, having at least one axial groove on the inner surface, and magnetized such that centerlines between magnetic poles do not overlap grooves.