Abstract: A molded motor 100 includes a molded stator formed by providing a molding resin to a stator, a rotor inside the molded stator, a pair of bearings supporting a rotor shaft of the rotor, and an insulating bracket fitted in an inner circumferential part of an opening formed at an axial end of the molded stator to surround and support an outer ring of the bearing with a concave part formed at a center, and formed of an insulating resin.

Abstract: A rotor core includes a plurality of first electromagnetic steel plates that are stacked in an axial direction and a plurality of second electromagnetic steel plates that are stacked in an axial direction at both ends of the electromagnetic steel plate group thereof. The first electromagnetic steel plates are provided therein with magnet insertion holes and first flux barriers. The second electromagnetic steel plates are provided therein with the magnet insertion holes, second flux barriers, and projections that regulate the positions of the magnets. The second electromagnetic steel plates are stacked at at least one of the axial direction ends of the electromagnetic steel plate group including the plurality of first electromagnetic steel plates and are provided at a position overhanging the axial direction end of a stator core.

Abstract: Provided is an interior permanent magnet motor, including: a plurality of permanent magnets respectively inserted into a plurality of magnet accommodating holes formed in a rotator core of a rotator. In the magnet accommodating hole, a pair of minute projecting portions, a pair of large projecting portions, and a pair of demagnetizing field recesses are formed. The permanent magnet is sandwiched by a corresponding pair of minute projecting portions. The minute projecting portion is protruded radially inward to be in surface-contact with a corresponding end surface of the permanent magnet. The large projecting portion is formed on an outer side of the minute projecting portion, and is extended to an inner defining line side of the magnet accommodating hole. A height dimension (Ta) of the large projecting portion is larger than a height dimension (Tb) of the minute projecting portion.

Abstract: A rotor of an interior permanent magnet motor includes a rotor core having a plurality of magnet insertion holes, a shaft, a plurality of rare-earth magnets, and a pair of magnet fixing members. One surface of the magnet fixing member is provided with a plurality of pairs of tongue-like portions, and the tongue-like portions are inserted into the magnet insertion holes. On each of both sides in a rotary shaft direction, the rare-earth magnets have both end surfaces in a rotor circumferential direction sandwiched by a corresponding pair of tongue-like portions. An interval between the tongue-like portions includes, at a position separated from a base position, an interval that is smaller than the width of the rare-earth magnet in the rotor circumferential direction.

Abstract: An interior permanent magnet motor includes: a rotor; a stator; and a plurality of permanent magnets respectively inserted into a plurality of magnet insertion holes formed in a rotor core, the rotor core being formed by laminating a plurality of magnetic steel sheets, the magnetic steel sheets including first magnetic steel sheets each not having a magnet stopper in the magnet insertion hole, and second magnetic steel sheets each having magnet stoppers at both end portions of the magnet insertion hole, the rotor core including a laminate of the magnetic steel sheets in a lamination mode in which, when Hn represents a distance between an upper end surface of the second magnetic steel sheet and an upper end surface of the n-th second magnetic steel sheet, a progression of differences of Hn is a geometric progression.

Abstract: There is provided a treatment method that is capable of reducing burden on a patient when a medical sheet is indwelled in the body of the patient. A treatment method includes an introduction of introducing a catheter, which has stored a medical sheet (e.g., a myocardial cell sheet), to a heart inside a living body, and an indwelling step of drawing the myocardial cell sheet from the catheter and indwelling the myocardial cell sheet in the heart.

Abstract: To provide an air conditioner outdoor unit including a casing having an air inlet on a side surface and an air outlet on an upper surface, a heat exchanger that covers the air inlet and is provided inside the casing, a fan that sucks in air from the air inlet and discharges air from the air outlet, and a fan motor provided on a lower side of the fan. The fan motor is set such that an outer diameter D1 thereof is larger than an outer diameter D2 of a fan boss, and an outer periphery thereof is positioned on a center side of the fan motor than a straight line c passing an upper side of a center (for example, a predetermined position a) of the heat exchanger and a side (for example, a predetermined position b) of the fan boss.

Abstract: A rotor of a motor includes a rotor core; permanent magnet insertion holes that are formed in an outer circumferential portion of the rotor core along a circumferential direction and in each of which an air gap extending in an outer circumferential direction, is formed in both end portions in a state where a permanent magnet is inserted; and a permanent magnet inserted in each of the permanent magnet insertion holes, wherein a thin portion is formed between the air gap and an outer circumference of the rotor core, rounded corner portions are formed at two locations on an outer circumference side in the air gap, and a radius of curvature of any one of the corner portions is equal to or more than half a width of the air gap in a circumferential direction.

Abstract: A rotor of a motor includes a rotor core; permanent magnet insertion holes that are formed in an outer circumferential portion of the rotor core along a circumferential direction and in each of which an air gap extending in an outer circumferential direction, is formed in both end portions in a state where a permanent magnet is inserted; and a permanent magnet inserted in each of the permanent magnet insertion holes, wherein a thin portion is formed between the air gap and an outer circumference of the rotor core, rounded corner portions are formed at two locations on an outer circumference side in the air gap, and a radius of curvature of any one of the corner portions is equal to or more than half a width of the air gap in a circumferential direction.

Abstract: A rotor is connected to a shaft member and rotates about a central axis. The rotor includes a shaft hole having at least part of the shaft member disposed therein; and flow paths disposed around the shaft member and penetrating the rotor in a direction parallel with the central axis. Each flow path has a first surface facing outward in the radial direction; a second surface disposed outward of the first surface in the radial direction and facing the first surface; a third surface connecting the first and second surfaces at one end in a rotational direction about the central axis; a fourth surface connecting the first and second surfaces at the other end in the rotational direction. The condition C<D is satisfied, where C is the distance between both ends of the first surface, and D is the distance between both ends of the second surface.

Abstract: A motor including a rotor, and a stator having a plurality of coils wound around slots, wherein at least any one of the coils includes a single aluminum wire, a single copper wire joined to the aluminum wire, a stranded wire (lead wire) joined to the copper wire, a cold-pressure-welded joint portion (joint portion) joined between the aluminum wire and the copper wire by cold pressure welding, and a non-pressure welded joint portion (joint portion) provided between the copper wire and the stranded wire (lead wire). A burr covered by an insulation member (insulation tube) is provided in the cold-pressure-welded joint portion (joint portion). A thickness of the insulation member (insulation tube) is larger than a height of the burr.

Abstract: A rotor of an interior permanent magnet motor includes a rotor core; permanent magnet insertion holes formed in an outer circumferential portion of the rotor core along a circumferential direction; a permanent-magnet end-portion air gap formed in each of both end portions of each permanent magnet insertion hole; a permanent magnet inserted in each permanent magnet insertion hole; and slits formed in an outer circumferential core portion on an outer side in a radial direction with respect to each permanent magnet insertion hole, wherein a width of a core present between the permanent-magnet end-portion air gap and the slit and a width of a core present between the slits are such that a width of a core gradually increases as the core is closer to a magnet pole center from the interpolar line.

Abstract: A mold stator is configured to include a stator core and a mold resin that covers the stator core. A divided-core part includes a yoke part that is arranged coaxially with a rotor that is provided in the stator core, a teeth part that extends from the yoke part in a radially-inward direction, and a teeth distal-end part that is formed at a radially-inward end part of the teeth part. An outer-circumferential flat-surface part is formed on an outer circumferential surface of the yoke part and an outer-circumferential flat-surface part is formed at a position on an outer circumferential surface of the mold stator opposing the flat-surface part of the yoke part.

Abstract: An interior permanent magnet motor includes: a rotator; a stator; a permanent magnet inserted into a magnet accommodating hole; and a slit formed on a radially outer side of the magnet accommodating hole. A space portion is ensured between a radially outer surface of the permanent magnet and a rotator core in each region opposed to the slit. The permanent magnet is apart from the rotator core via the space portion in the each region opposed to the slit.

Abstract: A permanent magnet embedded motor includes a rotor and permanent magnets. The outer circumferential surface of the rotor is formed by divided outer circumferential surfaces divided at equal angle intervals in a circumferential direction corresponding to permanent magnets. The divided outer circumferential surface is formed by a first curved surface, a radial direction distance of which from a rotor axis is maximized in a circumferential direction center of divided outer circumferential surface and second curved surfaces formed from the circumferential direction both ends to the circumferential direction center and crossing the first curved surface. The second curved surfaces are formed by—arcuate surfaces each having the rotor axis as a central axis. A distance between both ends of the first curved surface is smaller than the width of a permanent magnet in a direction orthogonal to a radial direction in the circumferential direction center.

Abstract: In an induction motor, when dimensions of respective elements of a rotor slot are defined as TB: a shortest distance between a center side of an inner circumferential slot and an outer circumference of the rotor; TC: a circumferential width of an innermost circumference of an outer circumferential slot; TD: a circumferential width of an outermost circumference of the inner circumference slot; and TE: a shortest distance between an end side of the inner circumferential slot and the outer circumference of the rotor, and when dimensions of respective elements of a stator iron core are defined as TF: a width of teeth; TG: a width of a teeth tip end; and TH: a width of a slot opening part, the dimensions of the respective elements of the rotor slot and the dimensions of the respective elements of the stator iron core satisfy the following relationships: TF/(TG+TH)×TD/2?TB?TD/2; and TF/(TG+TH)×TD/2?TE?TD/2.

Abstract: A rotor, constituting an interior permanent magnet motor, includes magnets that are inserted into the rotor, and a rotor core containing magnet insertion pockets to which the magnets are inserted, and, when the magnets are inserted, the magnet insertion pockets are formed to provide openings in areas except both ends of an inner circumferential face, at both ends in a circumferential direction of the magnets.

Abstract: Provided is an interior permanent magnet motor, including: a plurality of permanent magnets respectively inserted into a plurality of magnet accommodating holes formed in a rotator core of a rotator. In the magnet accommodating hole, a pair of minute projecting portions, a pair of large projecting portions, and a pair of demagnetizing field recesses are formed. The permanent magnet is sandwiched by a corresponding pair of minute projecting portions. The minute projecting portion is protruded radially inward to be in surface-contact with a corresponding end surface of the permanent magnet. The large projecting portion is formed on an outer side of the minute projecting portion, and is extended to an inner defining line side of the magnet accommodating hole. A height dimension (Ta) of the large projecting portion is larger than a height dimension (Tb) of the minute projecting portion.

Abstract: A molded motor 100 includes a molded stator formed by providing a molding resin to a stator, a rotor inside the molded stator, a pair of bearings supporting a rotor shaft of the rotor, and an insulating bracket fitted in an inner circumferential part of an opening formed at an axial end of the molded stator to surround and support an outer ring of the bearing with a concave part formed at a center, and formed of an insulating resin.

Abstract: A rotor, constituting an interior permanent magnet motor, includes magnets that are inserted into the rotor, and a rotor core containing magnet insertion pockets to which the magnets are inserted, and, when the magnets are inserted, the magnet insertion pockets are formed to provide openings in areas except both ends of an inner circumferential face, at both ends in a circumferential direction of the magnets.