WO2005043741A2 - 永久磁石埋め込み型モータ用回転子、その組立方法および組立装置 - Google Patents
永久磁石埋め込み型モータ用回転子、その組立方法および組立装置 Download PDFInfo
- Publication number
- WO2005043741A2 WO2005043741A2 PCT/JP2004/015781 JP2004015781W WO2005043741A2 WO 2005043741 A2 WO2005043741 A2 WO 2005043741A2 JP 2004015781 W JP2004015781 W JP 2004015781W WO 2005043741 A2 WO2005043741 A2 WO 2005043741A2
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- WO
- WIPO (PCT)
- Prior art keywords
- permanent magnet
- rotor
- magnet
- hole
- rotor core
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Definitions
- the present invention relates to a rotor for an embedded permanent magnet type motor, an assembling method and an assembling apparatus thereof
- the present invention relates to a rotor for an embedded permanent magnet type motor, an assembling method and an assembling apparatus, and more specifically, to an inner rotor type or an outer rotor type permanent magnet embedded type in which a permanent magnet is embedded in a rotor core.
- the present invention relates to a rotor for a motor, an assembling method thereof, and an assembling apparatus.
- a permanent magnet 4 such as an earth sintered magnet is housed as a field source, and the permanent magnet 4 is fixed in the magnet housing hole 3 with an adhesive.
- Patent Document 1 discloses a rotor in which a permanent magnet is press-fitted into a magnet housing hole provided with a protrusion on the inner wall, and the permanent magnet is fixed by pressing the protrusion.
- Patent Document 1 when the permanent magnet is pressed into the magnet housing hole, the permanent magnet is chipped or chipped by a projection or a burr on the inner wall of the magnet housing hole, and is further damaged by cracks or the like. May occur.
- Patent Document 2 a pin having a diameter slightly larger than the opening is press-fitted into a through hole provided in the vicinity of the magnet housing hole of the rotor core, thereby forming the magnet housing hole.
- a rotor is disclosed in which an inner wall is plastically deformed to press a force portion against a permanent magnet and the permanent magnet is fixed. According to Patent Document 2, there is no possibility that the permanent magnet is damaged during the manufacturing process.
- Patent Document 1 JP-A-7-322538
- Patent Document 2 JP-A-2000-184638
- a main object of the present invention is to provide a permanent magnet embedded motor rotation that can easily fix the permanent magnet in the magnet accommodating hole without damaging the permanent magnet and can use a thin steel plate of an existing design. And an assembling method and an assembling apparatus therefor. Means for solving the problem
- a rotor core configured by laminating thin steel plates, a magnet housing hole penetrating the rotor core in the axial direction, and a permanent magnet housed in the magnet housing hole are provided.
- a convex portion is formed by forming a concave portion on the end face of the motor core near the opening portion of the magnet receiving hole, thereby plastically deforming the inner wall of the magnet receiving hole near the concave portion.
- a rotor for a motor with embedded permanent magnets wherein at least a part of the convex portion is pressed against the permanent magnet to fix the permanent magnet.
- the permanent magnet is provided with a second step of plastically deforming the inner wall of the magnet receiving hole near the concave to form a convex, and fixing the permanent magnet by pressing at least a part of the convex against the permanent magnet.
- a recess is formed at a desired position on the end face of the rotor core near the opening of the magnet housing hole in a state where the permanent magnet is housed in the magnet housing hole of the rotor core. Due to the formation of the recess, a protrusion is formed on the inner wall of the magnet housing hole, and at least a part of the protrusion is pressed against the permanent magnet housed in the magnet housing hole to fix the permanent magnet. As described above, since the permanent magnet is housed in the magnet housing hole before the protrusion is formed on the inner wall of the magnet housing hole, the permanent magnet is not damaged at the time of housing, and only the recess is formed at a desired position on the end face of the rotor core.
- the permanent magnet can be easily held and fixed firmly in the magnet receiving hole.
- a thin steel plate it is possible to use an existing design thin steel plate which does not require the use of a newly designed thin steel plate in which pin press-in holes are formed in predetermined places in advance.
- the permanent magnet is arranged such that the axial end face of the permanent magnet accommodated in the magnet accommodation hole is located inside the end face of the rotor core, and a part of the projection is formed on the axial end face of the permanent magnet. Protrude into.
- the movement of the permanent magnet can be suppressed not only in the plane direction but also in the axial direction by the convex portion, and it is possible to prevent the permanent magnet from jumping out of the magnet housing hole without requiring a separate member.
- the rotor for an inner rotor type permanent magnet embedded type motor has a permanent magnet in the magnet housing hole so as not to form a gap between the permanent magnet and the inner peripheral wall of the magnet housing hole. It is pressed by the convex part.
- the rotor for the inner rotor type permanent magnet embedded motor in which the coil is provided on the outer periphery of the rotor core no air gap is formed between the permanent magnet and the outer peripheral inner wall of the magnet receiving hole, so that the magnetic force in the rotor core is not increased.
- the resistance is not increased, the passage of magnetic flux is not hindered, and the motor characteristics are not degraded.
- the rotor for an outer rotor type permanent magnet embedded type motor wherein the magnet accommodating hole is formed so as not to form a gap between the permanent magnet and the inner wall on the center side of the magnet accommodating hole. , The permanent magnet is pressed by the projection.
- the rotor for the outer rotor type permanent magnet embedded motor in which the coil is provided on the inner periphery of the rotor core, no air gap is formed between the permanent magnet and the inner side inner wall of the magnet receiving hole, so that the rotor core The magnetic resistance does not increase and the passage of magnetic flux is not hindered, and the motor characteristics do not deteriorate.
- a rotor assembling apparatus for a permanent magnet embedded motor in which a permanent magnet is housed in a magnet housing hole axially penetrating a rotor core formed by laminating thin steel plates.
- a permanent magnet embedded motor rotor comprising: a through hole formed at a position to be formed; and a punch disposed in the through hole and forming a recess in the end face of the rotor core near the opening of the magnet receiving hole.
- the rotor core is held between the pair of holding jigs and the permanent magnet is housed in the magnet housing hole of the rotor core, and the magnet is housed by the punch arranged in the through hole of the holding jig.
- a recess is formed at a desired position on the end face of the rotor core near the opening of the hole.
- the permanent magnet since the permanent magnet is housed in the magnet housing hole before the protrusion is formed on the inner wall of the magnet housing hole, the permanent magnet is not damaged at the time of housing, and only the recess is formed at a desired position on the end face of the rotor core.
- the permanent magnet can be easily firmly held and fixed in the magnet receiving hole.
- a thin steel plate it is possible to use an existing design thin steel plate that does not require the use of a newly designed thin steel plate having a pin press-fit hole formed in a predetermined place in advance.
- the main surface of the holding jig on the rotor core side is provided with a projection for axially positioning a permanent magnet in the magnet receiving hole when holding the rotor core.
- the permanent magnet is arranged so that its end face is located in the permanent magnet receiving hole.
- a part of the protrusion formed along with the formation of the recess can be made to protrude from the end face of the permanent magnet located in the magnet receiving hole, and the movement of the permanent magnet not only in the plane direction but also in the direction of the surface by the protrusion.
- the rotor can be suppressed even in the axial direction, and a rotor can be obtained in which the permanent magnet does not protrude from the magnet housing hole.
- a rotor assembling apparatus for an inner rotor type permanent magnet embedded motor wherein a concave portion is formed so as not to form a gap between the permanent magnet and the outer peripheral inner wall of the magnet housing hole.
- an assembling apparatus for a rotor for an outer rotor type permanent magnet embedded type motor wherein a gap is not formed between the permanent magnet and a center inner wall of the magnet housing hole. A recess is formed.
- the magnetic resistance in the rotor core is not increased, the passage of magnetic flux is not hindered, and the motor characteristics are not degraded.
- the axial direction refers to a direction perpendicular to the end face of the rotor core.
- the plane direction refers to a direction parallel to the end face of the rotor core.
- FIG. 1 is an exploded perspective view showing one embodiment of the present invention.
- FIG. 2 is a perspective view showing one embodiment of the present invention.
- FIG. 3 is a plan view showing one end surface of the rotor core of the embodiment in FIG. 1.
- FIG. 4 (a) is an A-A cross-sectional view showing a positional relationship between a concave portion and a convex portion and a fixing mode of a permanent magnet, and (b) is a positional relationship between a concave portion and a convex portion and a fixing mode of a permanent magnet.
- FIG. 6 is a cross-sectional view taken along line BB of FIG.
- FIG. 5 is a front view of an assembly device used for assembling the rotor.
- FIG. 6 is a partially sectional illustration of an assembling apparatus used for assembling a rotor.
- FIG. 7 is an exploded perspective view showing a positional relationship between a holding jig and a rotor core.
- FIG. 8 is an illustrative view showing an operation of the assembling apparatus
- FIG. 9 is a perspective view showing another embodiment of the present invention.
- FIG. 10 is a plan view showing one end face of the rotor core of the embodiment in FIG. 9.
- FIG. 11 (a) is an A-A cross-sectional view showing a positional relationship between the concave portion and the press-contact portion and the protruding portion and a fixing mode of the permanent magnet, and (b) is a positional relationship between the concave portion and the press-contact portion and the protruding portion.
- FIG. 4 is a BB cross-sectional view showing a manner of fixing a permanent magnet.
- FIG. 12 is a partially sectional illustrative view of an assembling apparatus used for assembling a rotor. [13] FIG. 13 is an exploded perspective view showing another embodiment of the present invention.
- FIG. 14 is a perspective view showing another embodiment of the present invention.
- FIG. 15 is a plan view showing one end surface of the rotor core of the embodiment in FIG.
- FIG. 16 (a) is an A-A cross-sectional view showing a positional relationship between a concave portion and a convex portion and a fixing mode of a permanent magnet, and (b) is a positional relationship between a concave portion and a convex portion and a fixing mode of a permanent magnet.
- FIG. 17 is a front view of an assembly device used for assembling the rotor.
- FIG. 18 is a partially cross-sectional illustrative view of an assembling apparatus used for assembling a rotor.
- FIG. 19 is an exploded perspective view showing a positional relationship between a holding jig and a rotor core.
- FIG. 21 is a perspective view showing another embodiment of the present invention.
- FIG. 22 is a plan view showing one end surface of the rotor core of the embodiment in FIG. 21.
- a) is a sectional view taken along line A—A showing the positional relationship between the concave portion and the press contact portion and the protruding portion and the manner of fixing the permanent magnet.
- FIG. FIG. 4 is a cross-sectional view taken along line BB, showing a manner of fixing the magnet.
- FIG. 24 is a partially cross-sectional illustrative view of an assembling apparatus used for assembling a rotor.
- FIG. 25 is an illustrative view showing a modified example of the punch
- FIG. 26 is a plan view showing a conventional rotor.
- a rotor 10 for an embedded permanent magnet type motor is used for an inner rotor type embedded permanent magnet type motor.
- the rotor 10 includes a rotor core 12 formed by stacking a plurality of thin steel plates 11 having a thickness of about 0.5 mm.
- Each of the thin steel plates 11 constituting the rotor core 12 has, for example, a half pierce (not shown) having a concave portion on one end surface and a convex portion on the other end surface at predetermined positions.
- the concave and convex portions of the half piercings of the adjacent thin steel plates 11 are stacked so as to coincide with each other, and the convex portions are fitted into the concave portions so that the thin steel plates 11 are integrated.
- the rotor core 12 has a rotary shaft press-in hole 14 and a plurality (four in this embodiment) of magnet accommodation holes 16 penetrating from one end face 12a to the other end face 12b in the direction of the arrow Z (axial direction).
- the rotary shaft press-fitting hole 14 is provided at the center of the rotor core 12, and the magnet housing hole 16 is provided around the rotary shaft press-fitting hole 14.
- the rotating shaft 18 is press-fitted into the rotating shaft press-fitting hole 14, and the plate-shaped permanent magnet 20 whose corner portion is R-chamfered is housed in the straight groove-shaped magnet housing hole 16.
- the dimension of the magnet housing hole 16 in the direction of the arrow Z is equal to the dimension of the permanent magnet 20 in the direction of the arrow Z.
- the permanent magnet 20 has both end faces and end faces 12a, 12b in the direction of the arrow Z. Are arranged so as to be flush (see Fig. 4).
- the permanent magnet 20 for example, an R—Fe—B based rare earth sintered magnet is used.
- end plates 22 are arranged on end surfaces 12a and 12b of rotor core 12, respectively, and rotor core 12 and two end plates 22 are integrally formed. With two end plates 22, the magnet The movement of the permanent magnet 20 in the container 16 in the direction of the arrow Z is suppressed, and the protrusion is prevented.
- a rivet hole (not shown) is provided in the rotor core 12 and the end plate 22.
- a rivet (not shown) is inserted into the rotor core 12 and the two end plates 22, and both ends of the rivet are crushed.
- the rotor core 12 and the two end plates 22 are integrally formed.
- a plurality of recesses 24a, 24b are formed in the end face 12a near one end opening of each magnet accommodation hole 16, and the protrusions 26a, 24a, 24b corresponding to the plurality of recesses 24a, 24b, respectively.
- 26 b is formed on the inner wall of the magnet housing hole 16, and the protrusions 26 a and 26 b are pressed against the permanent magnet 20.
- a plurality of recesses 24a, 24b are formed in the end face 12b near the other end opening of the magnet housing hole 16, and the protrusions 26a, 26b corresponding to the plurality of recesses 24a, 24b respectively are formed on the inner wall of the magnet housing hole 16.
- the protrusions 26a and 26b are pressed against the permanent magnet 20.
- the permanent magnets 20 are held and fixed in the magnet receiving holes 16 by such convex portions 26a and 26b.
- the concave portion 24a is formed on each of the end surfaces 12a and 12b near the long side 16a on the center side (inner peripheral side) of the opening at both ends of the magnet housing hole 16, and the convex portion 26a is accordingly formed. It is formed on the long side inner wall (center side inner wall).
- the concave portion 24b is formed on each of the end faces 12a and 12b near the short side 16b adjacent to the long side 16a where the concave portion 24a is formed, and the convex portion 26b is accordingly formed on the inner wall of the short side.
- the recesses 24a, 24b are formed to a depth of about one sheet steel sheet 11 by, for example, punching.
- the concave portions 24a and 24b the inner wall of the magnet housing hole 16 is plastically deformed, and the convex portions 26a and 26b are formed.
- the protrusion 26a presses the permanent magnet 20 outward (outward) in the direction of the arrow X to bring the permanent magnet 20 into contact with the inner wall on the outer peripheral side of the magnet housing hole 16. Then, the permanent magnet 20 is held and fixed by suppressing the movement of the permanent magnet 20 in the direction of the arrow X. Further, as shown in FIG. 4 (b), the protrusion 26b holds the permanent magnet 20 between both sides of the force in the direction of the arrow Y, and suppresses the movement of the permanent magnet 20 in the direction of the arrow Y, thereby firmly holding the permanent magnet 20. Hold and fix.
- the protrusions 26a and 26b suppress the movement of the permanent magnet 20 in the directions of the arrows X and Y, and in the direction of the plane.
- the assembling apparatus 100 includes a frame 102.
- the frame 102 is composed of a gantry 104 arranged above, a gantry 106 arranged below, and a column 108 connecting the gantry 104 and the gantry 106.
- An air cylinder 110 is arranged on the gantry 104, and a rod 112 of the air cylinder 110 passes through the gantry 104 to face the frame 102.
- a piston 114 is provided at a lower end of the rod 112. .
- the air cylinder 110 is driven by driving means (not shown) to raise or lower the rod 112 and the piston 114 in the arrow Z direction.
- a pair of holding jigs 116 for holding or holding the rotor core 12 are arranged in the frame 102.
- One of the pair of holding jigs 116 is attached to the end surface of the piston 114 and is configured to be vertically movable within the frame 102, and the other is attached to the main surface of the gantry 106 and fixed.
- a holding portion 118 for holding the rotor core 12 is provided on the opposing surfaces of the pair of holding jigs 116.
- the holding portion 118 is provided with a rotation shaft holding hole 120 penetrating in the vertical direction and a plurality of punch arrangement holes 122.
- the rotation shaft holding hole 120 is formed at the center of the holding portion 118.
- the punch placement hole 122 is composed of a large diameter portion 122a, a small diameter portion 122b, and a step portion 122c serving as a stopper for a punch 126 (described later).
- the small diameter portion 122b is an opening of the magnet accommodation hole 16 of the rotor core 12.
- a punch placement hole 122 is formed so as to be located in the vicinity.
- two small-diameter portions 122b correspond to the one end opening of each magnet accommodation hole 16 near the long side 16a on the center side thereof.
- a total of four punching holes 122 are formed in the holding jig 116 such that one small-diameter portion 122b corresponds to each of the two short sides 16b adjacent to the long side 16a.
- two small-diameter portions 122b correspond to the vicinity of the center long side 16a at the other end opening of each magnet accommodation hole 16, and two short sides adjacent to the long side 16a.
- a total of four punch placement holes 122 are formed in the holding jig 116 such that one small-diameter portion 122b corresponds to each of the sides 16b.
- each holding jig 116 a total of 16 punch arrangement holes 122 are formed in each holding jig 116.
- the tip of each punch placement hole 122 is conical via a panel 124
- the punch 126 formed into a shape is inserted.
- the punch 126 is positioned in the surface direction with the inner peripheral surface of the large diameter portion 122a as the inner surface, and the movable range in the axial direction is defined by the step portion 122c.
- through-holes 128 are provided at positions corresponding to the punch placement holes 122, respectively, in the gantry 106 and the piston 114. Therefore, the positions and the numbers of the punch arrangement holes 122 of the holding jig 116 and the through holes 128 of the gantry 106 and the piston 114 match.
- An air cylinder 130 is arranged in each through hole 128, and the air cylinder 130 is simultaneously driven by one driving means (not shown) to raise or lower the rod 132 and the piston 134.
- the rotor core 12 is manually placed in the holding portion 118 of the holding jig 116 attached to the gantry 106, and the permanent magnet 20 is housed in the magnet housing hole 16.
- the rotor core 12 and the holding jig 116 may be provided with marks (not shown) so that the magnet housing hole 16 and the small-diameter portion 122b of the punch arrangement hole 122 have an appropriate positional relationship. No.
- the inner wall of the magnet housing hole 16 is plastically deformed to form the protrusions 26a and 26b, and the protrusions 26a and 26b are pressed against the permanent magnet 20, and the permanent magnet 20 is fixed in the magnet housing hole 16. Is done.
- the holding jig 116 may be raised automatically after the punch 126 is driven, or may be pressed by pressing an end button (not shown).
- the permanent magnet 20 is accommodated in the magnet accommodating hole 16 of the rotor core 12, and the end face 12 a of the rotor core 12 is proximate to the opening at both ends of the magnet accommodating hole 16. , 12b are formed at desired positions.
- the projections 26a, 26b are formed on the inner wall of the magnet housing hole 16 by forming the recesses 24a, 24b, and at least a part of the projections 26a, 26b is pressed against the permanent magnet 20 housed in the magnet housing hole 16.
- the permanent magnet 20 is fixed.
- the permanent magnet 20 is housed in the magnet housing hole 16 before the projections 26a and 26b are formed on the inner wall of the magnet housing hole 16, the permanent magnet 20 is not damaged at the time of housing. Even when using R—Fe—B rare earth sintered magnets, the magnetic properties do not decrease!
- the convex portions 26a, 26b pressed against the permanent magnet 20 can be formed.
- the magnet 20 can be firmly held and fixed in the magnet receiving hole 16.
- the thin steel plate 11 it is not necessary to use a newly designed thin steel plate in which a pin press-fit hole is formed in a predetermined place in advance, so that a thin steel plate of an existing design can be used, and cost can be reduced.
- the position (fixed portion) of the squeezing portion that presses against the permanent magnet is uniquely determined according to the position of the pin press-fit hole in the rotor core, so that the staking portion is not changed unless the thin steel plate is changed. Cannot be changed.
- the rotor core 12 in the inner rotor type permanent magnet embedded motor is used.
- the magnetic reluctance inside is not increased and the passage of magnetic flux is not hindered, and the motor characteristics are not degraded.
- the convex portions 26a and 26b are applied to the chamfered portions to some extent, which contributes to the suppression of the axial movement of the permanent magnets 20. Can be done.
- the depths of the concave portions 24a and 24b are not particularly limited, and may be equal to or less than one thin steel plate.
- the positions of the recesses 24 a and 24 b may be arbitrary on the end face of the rotor core 12.
- the rotor 200 is used for an inner rotor type permanent magnet embedded motor similarly to the rotor 10 described above, and has substantially the same configuration as the rotor 10 described above.
- the permanent magnet 202 used in the rotor 200 has a length in the direction of the arrow Z that is thinner than the dimension of the magnet housing hole 16 in the direction of the arrow Z.
- the permanent magnets 202 are set to be shorter by about two sheets, and are arranged such that both end faces of the permanent magnet 202 are inside the end faces 12a and 12b of the rotor core 12 by about one sheet steel sheet.
- a plurality of recesses 204a, 204b are formed in each of the end faces 12a, 12b of the rotor core 12 by, for example, driving a punch or the like to a depth of about two thin steel plates.
- each magnet accommodation hole 16 is attached to the end face 12a.
- the plurality of recesses 204a, 204b are formed, and the plastic deformation of the inner wall of the magnet receiving hole 16 thereby forms the protrusions 206a, 206b corresponding to the plurality of recesses 204a, 204b, respectively, and the protrusions 206a, 206b become permanent magnets. Press against 202.
- a plurality of recesses 204a, 204b are formed on the end face 12b near the other end opening of the magnet housing hole 16, and the convex portions 206a, 206b corresponding to the plurality of recesses 204a, 204b are formed on the inner wall of the magnet housing hole 16.
- the protrusions 206 a and 206 b are pressed against the S permanent magnet 202.
- the permanent magnets 202 are held and fixed in the magnet housing holes 16 by the protrusions 206a and 206b.
- the concave portion 204a is formed on each of the end faces 12a and 12b near the long side 16a on the center side of the opening at both ends of the magnet housing hole 16, and accordingly, the convex portion 206a is formed on the inner wall of the long side. Is done.
- the concave portion 204b is formed on each of the end faces 12a and 12b in the vicinity of the short side 16b adjacent to the long side 16a where the concave portion 204a is formed, and accordingly, the convex portion 206b is formed on the inner wall of the short side.
- the convex portion 206a has a pressing portion 206al that also presses the permanent magnet 202 in a lateral direction and a projecting portion 206a2 that protrudes from the end surface of the permanent magnet 202 in the arrow Z direction. Consists of The press contact portion 206al presses against the permanent magnet 202 to suppress the movement of the permanent magnet 202 in the direction of the arrow X, and the protrusion 206a2 sandwiches the permanent magnet 202 and suppresses the movement of the permanent magnet 202 in the direction of the arrow Z.
- the convex portion 206b includes a pressing portion 206bl that also presses the permanent magnet 202 in a lateral direction and a protruding portion 206b2 that protrudes from the end surface of the permanent magnet 202 in the arrow Z direction. And power are also composed.
- the press contact portion 206bl presses against the permanent magnet 202 and suppresses the movement of the permanent magnet 202 in the direction of arrow Y, and the protrusion 206b2 clamps the permanent magnet 202 and suppresses the movement of the permanent magnet 202 in the direction of arrow Z.
- Such a rotor 200 [the twisted, the convex] 206a, 206b [the arrow of the permanent magnet 202 [3
- the movement in the X direction, the Y direction, and the Z direction is suppressed, and the movement of the permanent magnet 20 is suppressed.
- This can be suppressed not only in the plane direction but also in the axial direction, and the protrusion of the permanent magnet 202 from the magnet housing hole 16 can be prevented.
- the rotor 200 does not require a member such as an end plate for preventing the permanent magnet 202 from jumping out.
- Both end faces of the permanent magnet 202 are axially closer to the end faces 12a and 12b of the rotor core 12, respectively. It is preferable that the permanent magnets 202 are arranged so as to extend inward in the direction of one or more thin steel plates in order to suppress the movement of the permanent magnets 202 in the axial direction more reliably.
- the position of the permanent magnet 202 is not limited to this, and the permanent magnet 202 may be arranged such that at least one end face of the permanent magnet 202 is axially inside the corresponding end face of the rotor core 12.
- the depth of the concave portions 204a and 204b may be arbitrary as long as the pressure contact portions and the protruding portions can be formed on the convex portions 206a and 206b.
- the depth of the recesses 204a and 204b, in which the length of the permanent magnet 202 in the direction of the arrow Z in the direction of the arrow Z of the magnet housing hole 16 is shorter by approximately one sheet steel sheet, is equal to or less than one sheet steel sheet.
- the protrusions of the protrusions 206a and 206b can at least protrude above the end surface of the permanent magnet 202 in the direction of arrow Z.
- the protrusions 206a and 206b having protrusions are provided only on one side of the permanent magnet 202 on both sides of the permanent magnet 202 in the direction of the arrow Z. Is also good.
- a holding jig 116a is used instead of the holding jig 116 in the above-described assembling apparatus 100.
- the rest of the configuration is the same as that of the assembling apparatus 100, and a duplicate description thereof will be omitted.
- a plurality of (four in this embodiment) projections 136 are provided on the bottom surface of the holding portion 118, as shown by broken lines in FIG.
- the protrusion 136 is formed at a position corresponding to the opening of the magnet housing hole 16 of the rotor core 12 with a thickness of about one thin steel plate.
- the protrusions 136 protrude into the magnet housing holes 16.
- the protrusions 136 are arranged such that both end surfaces of the permanent magnet 202 in the direction of the arrow Z are located in the magnet housing hole 16 at a depth of about one thinner steel plate than the end surfaces 12a and 12b of the rotor core 12. Position.
- the magnet housing hole 16 Interior wall A gap is formed between the convex forming surface (the inner wall of the long side 16a and the inner wall of the short side 16b: see FIG. 10) and the side surface of the protrusion 136.
- the recesses 204a and 204b are formed only by driving the punch 126 into each of the end faces 12a and 12b of the rotor core 12 at a depth of about two thin steel plates.
- the permanent magnets 202a and 206b can be formed, and the permanent magnet 202 can be more firmly held at a desired position in the magnet housing hole 16 with a simple operation.
- the projection 136 functions not only as a positioning member for the permanent magnet 202 in the axial direction but also as a positioning member for the magnet housing hole 16 and the punch placement hole 122, the vicinity of the opening of the magnet housing hole 16
- the concave portions 204a and 204b can be accurately formed at desired positions, and the variation in the fixed position of the permanent magnet 202 in the magnet housing hole 16 can be suppressed, so that motor characteristics can be prevented from deteriorating.
- rotor 300 according to another embodiment of the present invention is used for an after-rotor type permanent magnet embedded motor. Descriptions of the same components as those of the rotor 10 used in the inner rotor type permanent magnet embedded motor described above will be omitted.
- Rotor 300 includes a rotor core 302 formed in a ring shape and formed by stacking a plurality of thin steel plates 301 having a thickness of about 0.5 mm.
- the rotor core 302 is provided with a plurality (ten in this embodiment) of magnet accommodation holes 304 penetrating the end faces 302a, 302b in the direction of arrow Z.
- the linear groove-shaped magnet accommodation hole 304 accommodates a plate-shaped permanent magnet 306 whose corner is rounded.
- the dimension of the magnet receiving hole 304 in the direction of the arrow Z and the length of the permanent magnet 306 in the direction of the arrow Z are equal, and the permanent magnet 306 is located at both end surfaces and end surfaces 302a, 30 in the direction of the arrow Z. 2b are arranged so as to be flush (see FIG. 16).
- an end plate 308 is arranged on the end surface 302a, and a rotating shaft holding plate 310 having a through hole at the center is arranged on the end surface 302b.
- the rotating shaft 312 is press-fitted into the through-hole of the rotating shaft holding plate 310.
- the rotor core 302, the end plate 308, and the rotation shaft holding plate 310 are integrated.
- the end plate 308 and the rotation shaft holding plate 310 the movement of the permanent magnet 306 in the magnet receiving hole 304 in the direction of arrow Z is suppressed, and the protrusion is prevented.
- a plurality of recesses 314a, 314b are formed in the end face 302a near one end opening of each magnet accommodation hole 304, and the protrusions 316a, 314a corresponding to the plurality of recesses 314a, 314b, respectively.
- the 316b force S magnet is formed on the inner wall of the shroud 304 and is pressed against the convex 316a, 316b force S permanent magnet 306.
- a plurality of recesses 314a, 314b are formed in the end surface 302b near the other end opening of the magnet housing hole 304, and the convex 316a, 316b force corresponding to each of the plurality of recesses 314a, 314b S It is formed on the inner wall and pressed against the convex 316 a, 316 b force S permanent magnet 306.
- the convex portions 316a and 316b the permanent magnet 306 is held and fixed in the S magnet storage hole 304.
- the concave portion 314a is formed on each of the end surfaces 302a and 302b near the long side 304a on the outer peripheral side of the opening at both ends of the magnet accommodation hole 304, and the convex portion 316a is accordingly formed on the inner wall of the long side (outer peripheral side). Inner wall).
- the concave portion 314b is formed on each of the end surfaces 302a and 302b near the short side 304b adjacent to the long side 304a where the concave portion 314a is formed, and a convex portion 316b is formed on the inner wall of the short side accordingly.
- the recesses 314a, 314b are formed to a depth of about one sheet steel plate 301 by driving a punch or the like, for example.
- the concave portions 314a and 314b By forming the concave portions 314a and 314b, the inner wall of the magnet housing hole 304 is plastically deformed, and the convex portions 316a and 316b are formed.
- the protrusion 316a presses the permanent magnet 306 inward (inward) in the direction of the arrow X to bring the permanent magnet 306 into contact with the inner wall on the inner peripheral side of the magnet housing hole 304. Then, the permanent magnet 306 is held and fixed by suppressing the movement of the permanent magnet 306 in the arrow X direction.
- the protrusion 316b sandwiches the permanent magnet 306 from both sides of the force in the direction of arrow Y, and 6: Hold down the permanent magnet 306 firmly by suppressing the movement in the Y direction.
- the protrusions 316a and 316b suppress the movement of the permanent magnet 306 in the directions of the arrows X and Y, and in the plane.
- the assembling apparatus 400 includes a frame 402.
- the frame 402 includes a gantry 404 arranged above, a gantry 406 arranged below, and a column 408 connecting the gantry 404 and the gantry 406.
- An air cylinder 410 is arranged on the gantry 404, and a rod 412 of the air cylinder 410 passes through the gantry 404 to face the frame 402.
- a piston 414 is provided at a lower end of the rod 412. .
- the air cylinder 410 is driven by driving means (not shown) to raise or lower the rod 412 and the piston 414 in the arrow Z direction.
- a pair of holding jigs 416 for holding or holding the rotor core 302 are arranged.
- One of the pair of holding jigs 416 is attached to the end surface of the piston 414 and is configured to be vertically movable within the frame 402, and the other is attached and fixed to the main surface of the gantry 406.
- a holding portion 418 for holding the rotor core 302 is provided on the opposing surfaces of the pair of holding jigs 416.
- the holding portion 418 is provided with a plurality of punch arrangement holes 420.
- the punch arrangement hole 420 includes a large-diameter portion 420a, a small-diameter portion 420b, and a step 420c serving as a stopper for a punch 424 (described later).
- a punch arrangement hole 420 is formed so as to be located near the portion.
- two small diameter portions 420b correspond to the one end opening of each magnet accommodating hole 304 near the long side 304a on the outer peripheral side thereof.
- a total of four punch arrangement holes 420 are formed in the holding jig 416 so that one small-diameter portion 420b corresponds to each of two short sides 304b adjacent to the side 304a.
- two small-diameter portions 420b correspond to the vicinity of the long side 304a on the outer peripheral side of the opening at the other end of each magnet housing hole 304, and further, the two short sides 304b adjacent to the long side 304a.
- a total of four punch arrangement holes 420 are formed in the holding jig 416 such that the small-diameter portions 420b correspond to each one. Therefore, in this embodiment, a total of 40 punch arrangement holes 420 are formed in each holding jig 416.
- a punch 424 having a tip portion formed in a conical shape is inserted into each punch arrangement hole 420 through a panel 422. The punch 424 is positioned in the surface direction using the inner peripheral surface of the large diameter portion 420a as a guide surface, and the axial movable range is defined by the step portion 420c.
- through-hole 426 is provided in mount 406 and piston 414 at positions corresponding to punch arrangement holes 420, respectively. Therefore, the positions and the numbers of the punch arrangement holes 420 of the holding jig 416 and the through holes 426 of the gantry 406 and the piston 414 match.
- An air cylinder 428 is arranged in each through hole 426, and the air cylinder 428 is simultaneously driven by one driving means (not shown) to raise or lower the rod 430 and the piston 432.
- the rotor core 302 is manually placed in the holding portion 418 of the holding jig 416 attached to the gantry 406, and the permanent magnet 306 is stored in the magnet receiving hole 304.
- the rotor core 302 and the holding jig 416 are provided with marks (not shown) so that the magnet housing hole 304 and the small-diameter portion 420b of the punch arrangement hole 420 have an appropriate positional relationship.
- the inner wall of the magnet receiving hole 304 is plastically deformed to form the protrusions 316a, 316b, and the force S is formed. It is pressed and fixed in the permanent magnet 306 force S magnet receiving hole 304.
- the holding jig 416 may be raised automatically after the punch 424 is driven, or may be pressed by pressing an end button!
- the end faces 302a, 302a, S 314a, 314b force S is formed at a desired position of 302b.
- the projections 316a and 316b are formed on the inner wall of the magnet housing hole 304 by forming the fourty a and 314b, and at least a part of the projections 316a and 316b is pressed against the permanent magnet 306 housed in the magnet housing hole 304 and becomes permanent magnet. 306 is fixed.
- the permanent magnet 306 is housed in the magnet housing hole 304 before the projections 316a and 316b are formed on the inner wall of the magnet housing hole 304, the permanent magnet 306 is not damaged at the time of housing, and the permanent magnet 306 is not damaged. Even if a R-Fe-B based rare earth sintered magnet is used, the magnetic properties do not decrease.
- the thin steel plate 301 it is possible to use a thin steel plate of an existing design which does not require the use of a newly designed thin steel plate in which a pin press-fitting hole is formed in a predetermined place in advance, thereby reducing costs.
- the positions of the concave portions and the convex portions in rotor core 302 can be easily changed. Further, since only a simple force is applied to the vicinity of the opening of the magnet accommodating hole 304 of the rotor core 302, a magnetic flux in the rotor core is provided as in the case where a new hole for inserting a pin or the like is provided in the rotor core. There is no need to reconsider new designs that do not obstruct the passage. Therefore, the present invention can be applied to the existing outer rotor type rotor, and the recess can be easily formed.
- the protrusions 316a and 316b are slightly applied to the chamfered portion, which may contribute to suppressing the axial movement of the permanent magnet 306. it can.
- the depths of the concave portions 314a and 314b are not particularly limited, and may be equal to or less than one thin steel plate.
- positions of recesses 314a and 314b may be arbitrary at the end face of rotor core 302. .
- the rotor 500 is used for an outer rotor type permanent magnet embedded motor similarly to the above-described rotor 300, and is configured substantially in the same manner as the above-described rotor 300, and thus the description of the overlapping parts will be omitted.
- the permanent magnet 502 used in the rotor 500 has a length in the direction of the arrow Z that is thinner than the dimension of the magnet housing hole 304 in the direction of the arrow Z. It is set to be shorter by about two sheets, and is disposed such that both end faces of the permanent magnet 502 are inside the end faces 302a and 302b of the rotor core 302 by about one sheet steel sheet. Recesses 504a and 504b are formed in each of the end faces 302a and 302b of the rotor core 302 by, for example, punching in with a depth of about two thin steel plates. As shown in FIGS.
- a plurality of recesses 504a and 504b are formed in the end face 302a near one end opening of each magnet housing hole 304, and the inner wall of the magnet housing hole 304 is deformed by plastic deformation. Then, convex portions 506a and 506b corresponding to the plurality of concave portions 504a and 504b are formed, and the convex portions 506a and 506b are pressed against the permanent magnet 502.
- a plurality of recesses 504a, 504b are formed on the end face 302b near the other end opening of the magnet housing hole 304, and the protrusions 506a, 506b corresponding to the plurality of recesses 504a, 504b are formed on the inner wall of the magnet housing hole 304.
- the protrusions 506a and 506b are pressed against the S permanent magnet 502.
- the permanent magnets 502 are held and fixed in the magnet receiving holes 304 by the protrusions 506a and 506b.
- the concave portion 504a is formed on each of the end surfaces 302a and 302b near the long side 304a on the outer peripheral side of the opening at both ends of the magnet housing hole 304, and the convex portion 506a is formed on the inner wall of the long side accordingly.
- the concave portion 504b is formed on each of the end surfaces 302a and 302b near the short side 304b adjacent to the long side 304a where the concave portion 504a is formed, and accordingly, the convex portion 506b is formed on the inner wall of the short side.
- the convex portion 506a has a pressure contact portion 506al that presses the permanent magnet 502 in a lateral direction and a protrusion 506a2 that protrudes from the end surface of the permanent magnet 502 in the arrow Z direction. Consists of The press contact portion 506al presses against the permanent magnet 502 to suppress the movement of the permanent magnet 502 in the direction of arrow X, and the protrusion 506a2 clamps the permanent magnet 502 and suppresses the movement of the permanent magnet 502 in the direction of arrow Z.
- the convex portion 506b has a pressing portion 506bl that also presses the permanent magnet 502 in a lateral direction and a protruding portion 506b2 that protrudes from the end surface of the permanent magnet 502 in the arrow Z direction. And power are also composed.
- the press contact portion 506bl presses against the permanent magnet 502 and suppresses the movement of the permanent magnet 502 in the direction of arrow Y, and the protrusion 506b2 holds the permanent magnet 502 and suppresses the movement of the permanent magnet 502 in the direction of arrow Z.
- Such a rotor 500 [Yokohama, convex] 506a, 506b [Owing to the arrow of the permanent magnet 502 [3X, Y and Z directions are suppressed, and the movement of the permanent magnet 502 is reduced. It can be suppressed not only in the plane direction but also in the axial direction, and the projection of the permanent magnet 502 from the magnet housing hole 304 can be prevented. As a result, as shown in FIG. 21, the rotor 500 does not require a member such as an end plate for preventing the permanent magnet 502 from jumping out.
- the permanent magnet 502 is arranged such that both end surfaces of the permanent magnet 502 are at least one thin steel plate inward in the axial direction from the end surfaces 302a and 302b of the rotor core 302, the axis of the permanent magnet 502 is This is desirable because the movement in the direction can be suppressed more reliably.
- the position of the permanent magnet 502 is not limited to this, and the permanent magnet 502 may be arranged such that at least one end face of the permanent magnet 502 is axially inside the corresponding end face of the rotor core 302 in the axial direction.
- the depth of the concave portions 504a and 504b may be arbitrary as long as the pressure contact portions and the protruding portions can be formed on the convex portions 506a and 506b.
- the depth of the recesses 504a and 504b in which the length of the permanent magnet 502 in the direction of the arrow Z is shorter than the dimension of the magnet housing hole 304 in the direction of the arrow Z by about one sheet steel, is less than one sheet steel sheet or less. Even so, it is only necessary that the protrusions of the protrusions 506a and 506b can protrude at least to some extent on the end surface of the permanent magnet 502 in the arrow Z direction.
- the rotating shaft holding plate 310 is attached to the end face 302b, the projections 506a and 506b having protrusions may be provided only on the end face 302aftlJ.
- a holding jig 416a is used instead of the holding jig 416 in the above-described assembling apparatus 400.
- the rest of the configuration is the same as that of the assembling apparatus 400, and a duplicate description thereof will be omitted.
- a plurality of (ten in this embodiment) projections 434 are provided on the bottom surface of the holding portion 418, as shown by the broken lines in FIG.
- the protrusion 434 is formed at a position corresponding to the opening of the magnet housing hole 304 of the rotor core 302 with a thickness of about one thin steel plate.
- the protrusions 434 protrude into the magnet housing holes 304.
- the protrusion 434 positions the permanent magnet 502 such that both end surfaces in the direction of the arrow Z of the permanent magnet 502 are positioned in the magnet housing hole 304 at a depth of about one thinner steel plate than the end surfaces 302a and 302b of the rotor core 302. I do.
- the magnet housing hole 3 A gap is formed between the projection forming surface (the inner wall of the long side 304a and the inner wall of the short side 304b: see FIG. 22) of the inner wall of 04 and the side surface of the protrusion 434.
- recesses 504a and 504b are formed only by punching punches 424 into the end faces 302a and 302b of the rotor core 302 at a depth of about two thin steel plates. , 506b can be formed, and the permanent magnet 502 can be more firmly held at a desired position in the magnet receiving hole 304 by a simple operation.
- the protrusion 434 functions not only as a positioning member for the permanent magnet 502 in the axial direction but also as a positioning member for the magnet hole 304 and the punch placement hole 420, the opening of the magnet hole 304 is formed.
- the concave portions 504a and 504b can be accurately formed at a desired position in the vicinity, and the variation in the fixed position of the permanent magnet 502 in the magnet receiving hole 304 can be suppressed, and the motor characteristics can be prevented from being deteriorated. .
- the shape of the permanent magnet and the shape of the magnet housing hole are not particularly limited, and may be, for example, an arc plate, a column, a polygonal column, or the like. Is desirable.
- the number of magnet housing holes provided in the rotor core and the number of permanent magnets housed therein are not particularly limited.
- the number of concave portions formed on the end face of the rotor core is not particularly limited as long as the permanent magnet can be securely fixed by the convex portion. It is desirable to form a plurality of concave portions with respect to.
- the concave portion is formed on both end surfaces of the rotor core.
- the concave portion may be formed on at least one of the shifted end surfaces of the rotor core.
- the shape of the tip is conical.
- the shape is not limited (see FIG. 25 (a)), but may be any as long as the concave portion can be reliably formed on the end face of the rotor core.
- the tip of the punch may have a substantially wedge shape (minus shape). By making the distal end portion substantially wedge-shaped, the convex portion can be formed larger, and the permanent magnet can be more firmly fixed.
- the tip of the punch may have a pyramid shape.
- the concave portion may be formed manually using a punch or the like.
- the convex portion is plastically deformed using a punch or the like so as to release the pressure contact of the convex portion with the permanent magnet.
- the permanent magnet can be easily taken out.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003371637A JP2007037202A (ja) | 2003-10-31 | 2003-10-31 | 永久磁石埋め込み型モータ用回転子、その組立方法および組立装置 |
JP2003-371637 | 2003-10-31 |
Publications (2)
Publication Number | Publication Date |
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WO2005043741A2 true WO2005043741A2 (ja) | 2005-05-12 |
WO2005043741A3 WO2005043741A3 (ja) | 2005-06-23 |
Family
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PCT/JP2004/015781 WO2005043741A2 (ja) | 2003-10-31 | 2004-10-25 | 永久磁石埋め込み型モータ用回転子、その組立方法および組立装置 |
Country Status (2)
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JP (1) | JP2007037202A (ja) |
WO (1) | WO2005043741A2 (ja) |
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DE102005041676A1 (de) * | 2005-09-01 | 2007-03-22 | Atb Technologies Gmbh | Blechpaketanordnung für eine elektrische Maschine sowie Rotor und Permanentmagnetmaschine |
EP1983636A1 (en) * | 2006-02-08 | 2008-10-22 | Toyota Jidosha Kabushiki Kaisha | Rotor manufacturing method |
CN101860132A (zh) * | 2010-04-19 | 2010-10-13 | 江苏爱尔玛电机制造有限公司 | 稀土永磁同步电动机转子铁心压装及焊接工具 |
BE1018595A3 (nl) * | 2009-09-10 | 2011-04-05 | Atlas Copco Airpower Nv | Werkwijze voor het assembleren van een rotor met permanente magneten, houder daarbij toegepast, en rotor verkregen door zulke werkwijze. |
US20130002082A1 (en) * | 2011-06-30 | 2013-01-03 | Asmo Co., Ltd. | Rotor and method for manufacturing the rotor |
DE102012019182A1 (de) | 2012-09-28 | 2013-03-21 | Daimler Ag | Verbindungsanordnung wenigstens zweier Ringsegmente eines Ringelements für eine elektrische Maschine sowie Verfahren zum Verbinden wenigstens zweier solcher Ringsegmente |
WO2012171671A3 (de) * | 2011-06-15 | 2014-11-20 | Schaeffler Technologies AG & Co. KG | Formschlüssige montage von dauermagneten in einem rotor |
US9003639B2 (en) | 2006-02-27 | 2015-04-14 | Toyota Jidosha Kabushiki Kaisha | Method of manufacturing a rotor |
JP2015136245A (ja) * | 2014-01-17 | 2015-07-27 | トヨタ自動車株式会社 | モータのロータ |
WO2015128678A1 (en) * | 2014-02-28 | 2015-09-03 | Trw Limited | Interior permanent magnet motor and rotor structure therefore |
US20210351644A1 (en) * | 2020-05-07 | 2021-11-11 | Hyundai Motor Company | Structure for fixing permanent magnet in rotor core |
DE102020209933A1 (de) | 2020-08-06 | 2022-02-10 | Vitesco Technologies Germany Gmbh | Rotor für eine elektrische Maschine und Verfahren zur Herstellung eines Rotors |
EP3026794B1 (en) * | 2014-11-25 | 2022-03-23 | Black & Decker Inc. | Brushless motor for a power tool |
FR3129792A1 (fr) * | 2021-11-26 | 2023-06-02 | Nidec Psa Emotors | Rotor de machine électrique tournante |
WO2023187272A1 (fr) * | 2022-03-29 | 2023-10-05 | Nidec Psa Emotors | Rotor de machine électrique tournante |
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DE102009029477A1 (de) * | 2009-09-15 | 2011-03-24 | Robert Bosch Gmbh | Elektrische Maschine mit Permanentmagneten sowie Verfahren zum Kalibrieren einer elektrischen Maschine |
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JP6523912B2 (ja) * | 2015-10-15 | 2019-06-05 | 日立グローバルライフソリューションズ株式会社 | 永久磁石回転電機および洗濯機 |
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Cited By (24)
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DE102005041676A1 (de) * | 2005-09-01 | 2007-03-22 | Atb Technologies Gmbh | Blechpaketanordnung für eine elektrische Maschine sowie Rotor und Permanentmagnetmaschine |
US8020280B2 (en) | 2006-02-08 | 2011-09-20 | Toyota Jidosha Kabushiki Kaisha | Rotor manufacturing method |
EP1983636A1 (en) * | 2006-02-08 | 2008-10-22 | Toyota Jidosha Kabushiki Kaisha | Rotor manufacturing method |
EP1983636A4 (en) * | 2006-02-08 | 2010-04-07 | Toyota Motor Co Ltd | PROCESS FOR PRODUCING ROTOR |
US9003639B2 (en) | 2006-02-27 | 2015-04-14 | Toyota Jidosha Kabushiki Kaisha | Method of manufacturing a rotor |
US8677606B2 (en) | 2009-09-10 | 2014-03-25 | Atlas Copco Airpower, Naamloze Vennootschap | Method for assembling a rotor with permanent magnets |
WO2011029162A3 (en) * | 2009-09-10 | 2011-04-28 | Atlas Copco Airpower, Naamloze Vennootschap | Method for assembling a rotor with permanent magnets, holder applied thereby, and rotor obtained by such a method |
BE1018595A3 (nl) * | 2009-09-10 | 2011-04-05 | Atlas Copco Airpower Nv | Werkwijze voor het assembleren van een rotor met permanente magneten, houder daarbij toegepast, en rotor verkregen door zulke werkwijze. |
CN101860132A (zh) * | 2010-04-19 | 2010-10-13 | 江苏爱尔玛电机制造有限公司 | 稀土永磁同步电动机转子铁心压装及焊接工具 |
WO2012171671A3 (de) * | 2011-06-15 | 2014-11-20 | Schaeffler Technologies AG & Co. KG | Formschlüssige montage von dauermagneten in einem rotor |
US20130002082A1 (en) * | 2011-06-30 | 2013-01-03 | Asmo Co., Ltd. | Rotor and method for manufacturing the rotor |
US9484792B2 (en) * | 2011-06-30 | 2016-11-01 | Asmo Co., Ltd. | Rotor and method for manufacturing the rotor |
DE102012019182A1 (de) | 2012-09-28 | 2013-03-21 | Daimler Ag | Verbindungsanordnung wenigstens zweier Ringsegmente eines Ringelements für eine elektrische Maschine sowie Verfahren zum Verbinden wenigstens zweier solcher Ringsegmente |
JP2015136245A (ja) * | 2014-01-17 | 2015-07-27 | トヨタ自動車株式会社 | モータのロータ |
WO2015128678A1 (en) * | 2014-02-28 | 2015-09-03 | Trw Limited | Interior permanent magnet motor and rotor structure therefore |
CN106165258A (zh) * | 2014-02-28 | 2016-11-23 | Trw有限公司 | 内置式永磁体马达以及用于它的转子结构 |
US10312754B2 (en) | 2014-02-28 | 2019-06-04 | Trw Limited | Interior permanent magnet motor and rotor structure therefore |
EP3026794B1 (en) * | 2014-11-25 | 2022-03-23 | Black & Decker Inc. | Brushless motor for a power tool |
US20210351644A1 (en) * | 2020-05-07 | 2021-11-11 | Hyundai Motor Company | Structure for fixing permanent magnet in rotor core |
US11722023B2 (en) * | 2020-05-07 | 2023-08-08 | Hyundai Motor Company | Structure for fixing permanent magnet in rotor core |
DE102020209933A1 (de) | 2020-08-06 | 2022-02-10 | Vitesco Technologies Germany Gmbh | Rotor für eine elektrische Maschine und Verfahren zur Herstellung eines Rotors |
FR3129792A1 (fr) * | 2021-11-26 | 2023-06-02 | Nidec Psa Emotors | Rotor de machine électrique tournante |
WO2023187272A1 (fr) * | 2022-03-29 | 2023-10-05 | Nidec Psa Emotors | Rotor de machine électrique tournante |
FR3134256A1 (fr) * | 2022-03-29 | 2023-10-06 | Nidec Psa Emotors | Rotor de machine électrique tournante |
Also Published As
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JP2007037202A (ja) | 2007-02-08 |
WO2005043741A3 (ja) | 2005-06-23 |
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