Abstract: A stator includes a stator core and a coil wound around the stator core. The coil includes a basic coil segment including a pair of first legs and a first transition portion disposed on a first end surface side of the stator core, and a transition coil segment including a pair of second legs and a second transition portion. The second transition portion includes a pair of shoulders and a pair of second rising portions. An inclination angle of the second rising portion is larger than an angle of the shoulder with respect to a first end surface, so that the second transition portion is in contact with the first transition portion.

Abstract: A stator includes a stator core including a plurality of teeth and a plurality of slots, a coil wound around the plurality of slots, and a spacer disposed on an end portion in an axial direction of the stator core. The coil includes a plurality of coil segments, each including a bent portion and a pair of legs. The spacer includes a coil support portion that is disposed between an end portion of each of the teeth and the bent portion of the coil segment and that has a support surface. A distance from the end portion of each of the teeth to the support surface on an inner side in a radial direction of the stator core is longer than a distance from the end portion of each of the teeth to the support surface on an outer side in the radial direction of the stator core.

Abstract: An electric motor includes a rotor, a stator, and an electric motor casing. The electric motor casing forms a first accommodating space accommodating a rotary shaft and a rotor core and a stator, and has an inner peripheral surface including an abutting inner peripheral surface in contact with a top portion on the radially outer side of a core convex portion. An outer peripheral-side flow path through which a cooling medium is capable of flowing is formed between the core convex portions adjacent to each other in the peripheral direction. The outer peripheral-side flow path is defined by an outer peripheral surface of the core main body and the inner peripheral surface of the electric motor casing.

Abstract: The basic coil segment is arranged in the slot such that at least part of the basic coil bent portion is arranged outside the insertion end, in an axial direction parallel to a center axis of the stator core and the pair of the basic coil insertion end portions is arranged outside the welded end, in the axial direction. The power coil segment is arranged in the slot such that the power coil lead end portion and at least part of the power coil connection portion are arranged outside the insertion end, in the axial direction and the power coil insertion end portion is arranged outside the welded end, in the axial direction. The height of an end surface of the basic coil segment from the insertion end is equal to the height of an end surface of the power coil segment from the insertion end.

Abstract: A stator includes a stator core (6); and a coil wound around the stator core. The coil includes a basic coil segment (22) including a pair of first legs (31) and a first transition portion (32) disposed on a first end surface (14) side of the stator core, and a transition coil segment (23) including a pair of second legs (41) and a second transition portion (42). The second transition portion includes a pair of shoulders (43) and a pair of second rising portions (44). An inclination angle of the second rising portion is larger than an angle of the shoulder with respect to a first end surface, so that the second transition portion is in contact with the first transition portion.

Abstract: A stator includes a stator core (6) including a plurality of teeth (11) and a plurality of slots (12); a coil wound around the plurality of slots; and a spacer (8) disposed on an end portion (14) in an axial direction of the stator core. The coil includes a plurality of coil segments (22), each including a bent portion (31) and a pair of legs (32). The spacer includes a coil support portion (41) that is disposed between an end portion of each of the teeth and the bent portion of the coil segment and that has a support surface (42). A distance from the end portion of each of the teeth to the support surface on an inner side in a radial direction of the stator core is longer than a distance from the end portion of each of the teeth to the support surface on an outer side in the radial direction of the stator core.

Abstract: An electric motor includes a rotor, a stator, and an electric motor casing. The electric motor casing forms a first accommodating space accommodating a rotary shaft and a rotor core and a stator, and has an inner peripheral surface including an abutting inner peripheral surface in contact with a top portion on the radially outer side of a core convex portion. An outer peripheral-side flow path through which a cooling medium is capable of flowing is formed between the core convex portions adjacent to each other in the peripheral direction. The outer peripheral-side flow path is defined by an outer peripheral surface of the core main body and the inner peripheral surface of the electric motor casing.

Abstract: A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.

Abstract: A stator 3 is provided with a plurality of magnetic poles 3a on the outer circumference thereof, and is configured from a plurality of layers of plate-shaped members. A rotor 4 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 5. The outer circumferential ends of the magnetic poles of the stator are provided with an extended portion that is bent such that at least one plate-shaped member, including an outermost layer, of the plurality of plate-shaped members is substantially parallel to the magnet. When the inner diameter of a bent portion of a plate-shaped member that is the closest to the magnet of the at least one plate-shaped member constituting the extended portion is taken as R1i, and the thickness of the closest plate-shaped member is taken as T1, R1i<T1 is satisfied. Accordingly, it is possible to improve the driving efficiency of an outer rotor-type motor.

Abstract: A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.

Abstract: The motor comprises a stator, a rotor, and magnets. The stator has a plurality of magnetic poles circumferentially arranged at first spaced intervals. The rotor is rotatably arranged in a position opposing to the stator. The magnets are arranged at second spaced intervals circumferentially on a surface of the rotor. The stator is formed by laminating plate materials, and a plurality of laminated plate materials at least including outermost layers of a laminated body thereof are bent in a direction substantially parallel to the magnet in order to form extended portions. And, when a magnet opposed area of pole tip portion being closest to a magnet including the extended portion is S, and a sectional area of magnetic pole is A, then area ratio (S/A) fulfills the relation of 4.8>(S/A).

Abstract: A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.

Abstract: This motor includes a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by having a prescribed space in between and has permanent magnets magnetized to different polarities at second prescribed intervals. The magnetic pole of the stator forms an extending section which extends from a magnetic pole base section in a direction parallel to the permanent magnet, and the extending length of the extending section in the direction parallel to the permanent magnet is same as that of the magnetic pole base section in the direction parallel to the permanent magnet or shorter.

Abstract: The motor comprises a stator, a rotor, and magnets. The stator has a plurality of magnetic poles circumferentially arranged at first spaced intervals. The rotor is rotatably arranged in a position opposing to the stator. The magnets are arranged at second spaced intervals circumferentially on a surface of the rotor. The stator is formed by laminating plate materials, and a plurality of laminated plate materials at least including outermost layers of a laminated body thereof are bent in a direction substantially parallel to the magnet in order to form extended portions. And, when a magnet opposed area of pole tip portion being closest to a magnet including the extended portion is S, and a sectional area of magnetic pole is A, then area ratio (S/A) fulfills the relation of 4.8>(S/A).

Abstract: A stator 3 is provided with a plurality of magnetic poles 3a on the outer circumference thereof, and is configured from a plurality of layers of plate-shaped members. A rotor 4 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 5. The outer circumferential ends of the magnetic poles of the stator are provided with an extended portion that is bent such that at least one plate-shaped member, including an outermost layer, of the plurality of plate-shaped members is substantially parallel to the magnet. When the inner diameter of a bent portion of a plate-shaped member that is the closest to the magnet of the at least one plate-shaped member constituting the extended portion is taken as R1i, and the thickness of the closest plate-shaped member is taken as T1, R1i<T1 is satisfied. Accordingly, it is possible to improve the driving efficiency of an outer rotor-type motor.

Abstract: A stator 3 is provided with a plurality of magnetic poles 3a on the outer circumference thereof, and is configured from a plurality of layers of plate-shaped members. A rotor 4 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 5. The outer circumferential ends of the magnetic poles of the stator are provided with an extended portion that is bent such that at least one plate-shaped member, including an outermost layer, of the plurality of plate-shaped members is substantially parallel to the magnet. When a thickness of a thinnest plate-shaped member of the at least one plate-shaped member constituting the extended portion is taken as T1, and a thickness of a thinnest plate-shaped member of a plate-shaped member not constituting the extended portion is taken as T2, T1 >T2 is satisfied. Accordingly, it is possible to improve the driving efficiency of an outer rotor-type motor.

Abstract: A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.

Abstract: A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.

Abstract: This motor includes a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by having a prescribed space in between and has permanent magnets magnetized to different polarities at second prescribed intervals. The magnetic pole of the stator forms an extending section which extends from a magnetic pole base section in a direction parallel to the permanent magnet, and the extending length of the extending section in the direction parallel to the permanent magnet is same as that of the magnetic pole base section in the direction parallel to the permanent magnet or shorter.

Abstract: A stator of a twin rotor motor includes: an annular yoke; a plurality of outer teeth and outer slots provided on an outer circumference of the yoke; a plurality of inner teeth and inner slots provided on an inner circumference of the yoke; and a plurality of toroidally-wound coils on the yoke. A rotor of the twin rotor motor includes: an outer rotor provided with an outer permanent magnet facing the outer teeth; and an inner rotor provided with an inner permanent magnet facing the inner teeth. Furthermore, the stator is provided with a resin mold that seals the coils and has a mounting-tab.