JP2014204475A - Lamination armature core for rotary electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated armature core for a rotary electric machine, which is able to restrict a magnetic flux decrease in a boundary between a teeth part and an armature core annular part compositional part, and also able to restrict the inclination of the teeth part to the armature core annular part compositional part.SOLUTION: A motor core 10 comprises a teeth part 12 composed by arranging teeth compositional pieces 16 in layers in the axial direction of a rotary electric machine; and an armature core annular part compositional part 14 composed by arranging armature core annular part compositional pieces 30 in layers in the axial direction of the rotary electric machine. Each teeth compositional piece 16 includes a fitting projection part 22, and a pair of abutting faces T3 whose faces are oriented in the circumferential direction of the rotary electric machine. Further, the outer peripheral part of the armature core annular part compositional part 14 has a fitting recessed part 38 in which the fitting projection part 22 of each teeth compositional piece 16 fits, and a pair of abutted faces T4 whose faces are oriented in the circumferential direction of the rotary electric machine and on which a pair of abutting faces T3 of the teeth compositional pieces 16 abut.

Description

  The present invention relates to a laminated iron core of a rotating electrical machine.

  In Patent Document 1 below, a laminated core of a rotating electrical machine configured by annularly arranging divided cores having teeth portions around which conductive windings are wound and engaging adjacent divided cores ( Stator core) is disclosed. In addition, the divided cores are connected along the circumferential direction of the stator core by engaging the engaging concave portions and the engaging convex portions.

Japanese Patent No. 4286829

  However, the axial center portion has an annular core annular portion constituting portion, and a plurality of teeth portions are arranged along the outer peripheral portion of the iron core annular portion constituting portion, and the radially inner end portion of the teeth portion is further arranged. In a laminated core of a rotating electric machine configured by fitting to the outer peripheral part of the core annular part constituting part, when magnetic flux flows from the tooth part to the core annular part constituting part, or from the core annular part constituting part to the tooth part. When the magnetic flux flows, the magnetic flux tends to decrease at the boundary between the tooth portion and the core annular portion constituting portion.

  Further, when the fitting between the radially inner end portion of the teeth portion and the outer peripheral portion of the core annular portion constituting portion is shallow, it is conceivable that each tooth portion is inclined, and in this case, a desired arrangement of the tooth portions is obtained. It may be impossible.

  In consideration of the above fact, the present invention can suppress the magnetic flux from decreasing at the boundary between the tooth portion and the core annular portion constituent portion, and can suppress the inclination of the tooth portion with respect to the core annular portion constituent portion. The purpose is to obtain a laminated iron core of a rotating electrical machine.

  The laminated core of the rotating electrical machine according to the first aspect of the present invention includes a rotating electrical machine that extends in a radial direction of the rotating electrical machine and has a fitting convex portion provided at an end on the radially inner side of the rotating electrical machine. A pair of abutting surfaces whose surfaces are directed in the circumferential direction are provided in a portion radially outside the rotating electrical machine with respect to the fitting convex portion, and are laminated in the axial direction of the rotating electrical machine. And a pair of abutments against which the pair of contact surfaces come into contact with each other, with a surface facing in the circumferential direction of the rotating electrical machine. And a core annular part constituent part configured by laminating a core annular part constituent piece having a contact surface and an outer peripheral part in an axial direction of the rotating electric machine.

  According to the first aspect of the present invention, the tooth portion is configured by laminating the teeth constituting pieces provided at the radially inner end of the rotating electrical machine, and the fitting concave portion is the outer peripheral portion. The core annular part constituent parts are configured by stacking the core annular part constituent pieces provided on the core. Further, the teeth are supported on the outer peripheral portion of the core annular portion constituent portion by fitting the fitting convex portions of the laminated tooth constituent pieces into the fitting concave portions of the laminated core annular portion constituent pieces. Has been. Further, in the present invention, a pair of contact surfaces whose surfaces are directed in the circumferential direction of the rotating electrical machine are provided on the tooth constituent piece, and the contacted surfaces with which the pair of contact surfaces abut are the core annular portion. It is provided in the outer peripheral part of the component piece. Therefore, the inclination of the teeth portion with respect to the core annular portion constituting portion is regulated by the contact surface of each laminated tooth constituting piece abutting against the contacted surface of each laminated core annular portion constituting piece. . Further, in the present invention, when magnetic flux flows from the tooth portion to the core annular portion constituting portion, or when magnetic flux flows from the core annular portion constituting portion to the teeth portion, in addition to the boundary between the fitting convex portion and the fitting concave portion. Thus, the magnetic flux can flow through the boundary between the contact surface and the contacted surface. That is, in the present invention, it is possible to suppress the magnetic flux from decreasing at the boundary between the tooth portion and the core annular portion constituent portion, and to suppress the inclination of the tooth portion with respect to the core annular portion constituent portion.

  The laminated core of the rotating electrical machine according to the second aspect of the present invention is the laminated core of the rotating electrical machine according to the first aspect, wherein a contact area between the contact surface and the contacted surface is the fitting convex portion. It is set larger than the contact area with the fitting recess.

  By the way, considering the rigidity of the laminated core of the rotating electrical machine in the assembled state, it is necessary to support the teeth portion on the outer peripheral portion of the core annular portion constituting portion with a predetermined support force. For this reason, the stress in the vicinity of the fitting convex portion of the teeth constituent piece and the fitting concave portion of the core annular portion constituent piece tends to be high. When magnetic flux flows through such a high-stress part, the magnetic flux tends to decrease at the part.

  However, in the present invention according to claim 2, in addition to the fact that the magnetic flux is hardly lowered (it is difficult to become a high-stress part), the contact surface and the contact area having a larger area than the contact area between the fitting convex part and the fitting concave part. Magnetic flux can flow through the boundary with the contact surface. That is, in this invention, it can suppress further that a magnetic flux falls in the boundary of a teeth part and an iron core annular part structure part.

  The laminated core of the rotating electrical machine according to the present invention described in claim 3 is the laminated core of the rotating electrical machine according to claim 1 or 2, wherein the fitting convex portion is narrowed toward a radially outer side of the rotating electrical machine. The fitting recess is configured to have a pair of second tapered surfaces that are narrowed toward the outside in the radial direction of the rotating electrical machine. When the first taper surface and the second taper surface come into contact with each other, the teeth portion is supported by the core annular portion constituting portion, and the pair of contact surfaces expands radially outward of the rotating electrical machine. And the pair of contacted surfaces is a fourth taper surface that expands outward in the radial direction of the rotating electrical machine, and the third taper surface and the fourth taper surface And the teeth part is formed into the iron ring That the configuration unit tilts in the circumferential direction of the rotating electrical machine is regulated.

  In this invention of Claim 3, the teeth part is supported by the core annular part structure part by the 1st taper surface and the 2nd taper surface contacting. Here, since the first taper surface and the second taper surface are set so as to be narrowed toward the outside in the radial direction of the rotating electrical machine, when the fitting convex portion is fitted into the fitting concave portion, the teeth portion is an iron ring. It tries to move toward the component part side (toward the radial inside of the rotating electrical machine). As a result, the third taper surface of each laminated tooth component piece is pressed against the fourth tapered surface of each laminated iron core annular portion component piece. Thus, in the present invention, the teeth portion can be firmly supported by the outer peripheral portion of the core annular portion constituting portion, and the teeth portion is further inclined with respect to the circumferential direction of the rotating electrical machine with respect to the core annular portion constituting portion. Can be suppressed.

It is a perspective view which shows a motor core. It is a top view which shows a teeth constituent piece. It is a top view which shows an iron core annular part component piece. It is an expansion perspective view which shows a teeth part. It is an expansion perspective view which shows an iron core annular part structure part. It is an enlarged plan view which shows the state by which the teeth part was supported by the outer peripheral part of the core annular part structure part. It is sectional drawing which shows the cross section which cut | disconnected the motor along the axial direction of the rotating shaft. It is an expansion perspective view which shows the armature which comprises some motors of FIG. It is an expansion perspective view which shows the coil piece which comprises a part of armature shown by FIG. FIG. 9B is an enlarged plan cross-sectional view schematically showing a process of inserting a tooth portion into the opening of the coil piece shown in FIG. 9A. It is an expansion perspective view which shows the process in which the fitting convex part of each teeth constituent piece which comprises a teeth part fits the fitting recessed part of each iron core annular part constituent piece which comprises an iron core annular part constituent part.

  Next, the laminated iron core of the rotating electrical machine according to the embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, a motor core 10 as a laminated core of a rotating electrical machine according to the present embodiment includes a plurality of teeth portions 12 (12 teeth portions 12 in the present embodiment) around which windings (not shown) are wound. The core annular portion constituting portion 14 into which the shaft is inserted and fixed is integrated (fixed). Hereinafter, the tooth portion 12 will be described first, and then the core annular portion constituting portion 14 will be described.

(Teeth part 12)
The teeth portion 12 is configured by laminating a tooth constituent piece 16 formed in a plate shape in the axial direction of the rotating electrical machine (direction of arrow L). Specifically, as shown in FIG. 2, the tooth constituent piece 16 is formed by stamping (pressing) an iron-based plate material, and the tooth constituent piece 16 is rotated. A rectangular main body 18 extending in the radial direction of the electric machine (in the directions of arrows R1 and R2) is provided. Furthermore, the tooth | gear component piece 16 is provided with the front-end | tip part 20 extended in the circumferential direction (arrow C1 direction and arrow C2 direction) of a rotary electric machine while being connected with the front end side of the main-body part 18. FIG.

  Moreover, the fitting convex part 22 formed convexly toward this direction (arrow R2 direction) is formed in the radial direction inner side (arrow R2 direction) end of the rotary electric machine in the tooth | gear component piece 16. As shown in FIG. . The fitting convex portion 22 is formed so as to be narrowed toward the radially outer side (in the direction of the arrow R1) of the rotating electrical machine in a plan view, whereby one side in the circumferential direction of the rotating electrical machine at the fitting convex portion 22 is formed. A pair of fitting convex side taper surfaces T1 (first taper surfaces) are formed on the other side (arrow C1 direction) and the other circumferential side (arrow C2 direction).

  Further, between the main body portion 18 and the fitting convex portion 22 in the tooth constituent piece 16, the main body portion 18 and the fitting convex portion 22 are coupled and expanded toward the outside in the radial direction of the rotating electrical machine in plan view. A fan-shaped portion 24 formed in a fan shape is provided. In addition, a pair of rotating electrical machines in the circumferential direction on one side (arrow C1 direction) and the other circumferential side (arrow C2 direction) in which the direction (arrow C1 or arrow C2 direction) faces are respectively directed. A contact surface T3 (third tapered surface) is formed. Further, the pair of contact surfaces T3 are expanded toward the outside in the radial direction of the rotating electrical machine (the direction of the arrow R1).

  In addition, stepped portions 26 are formed at the ends of the rotating electrical machine in the circumferential direction one side (arrow C1 direction) and the other circumferential direction side (arrow C2 direction) at the boundary between the main body 18 and the fan-shaped portion 24, respectively. ing.

  As shown in FIG. 4, the tooth portion 12 is configured by laminating the above-described teeth constituent pieces 16 in the axial direction (direction of arrow L) of the rotating electrical machine. Note that the stacked tooth constituent pieces 16 are integrated via a caulking portion 28.

(Iron core annular component 14)
As shown in FIG. 1, the core annular portion constituting portion 14 is configured so that the core annular portion constituting piece 30 formed in a plate shape having the same plate thickness as the tooth constituting piece 16 is in the axial direction (arrow L direction) of the rotating electrical machine. It is configured by being laminated. Specifically, as shown in FIG. 1 and FIG. 3, the core annular portion constituting piece 30 is formed by punching (pressing) an iron-based plate-like material, and in plan view. It is formed in a substantially gear shape. In addition, a circular insertion hole 32 into which the shaft 68 (see FIG. 8) is inserted (press-fitted) is formed in the center portion of the core annular portion constituting piece 30.

  Furthermore, a plurality of rhombus convex portions 34 (in this embodiment) projecting toward the outer side in the radial direction of the rotating electrical machine (in the direction of arrow R1) and formed in a substantially rhombus shape in a plan view, on the outer peripheral portion of the core annular portion constituting piece 30 In the form, twelve rhombuses 34) are provided. Moreover, the some rhombus convex part 34 is arrange | positioned at equal intervals along the circumferential direction (arrow C1 and arrow C2 direction) of a rotary electric machine. Furthermore, the circumferential width (circumferential width of the rotating electrical machine) on the base end side (the radial inner side of the rotating electrical machine) of the rhombus convex part 34 is H1, and the circumferential width of the tip of the rhombus convex part 34 is Further, the circumferential width of the intermediate portion between the base end side and the distal end of the rhombus convex portion 34 is a dimension H3 wider than H1 and H2.

  Also, as shown in FIG. 3, a plurality of rhombus convex portions 34 described above are provided on the outer peripheral portion of the core annular portion constituting piece 30, thereby providing one rhombus convex portion on the outer peripheral portion of the core annular portion constituting piece 30. A recess 36 that is open toward the outside in the radial direction of the rotating electrical machine (in the direction of the arrow R1) is formed between 34 and the other adjacent diamond-shaped protrusion 34. The base end side of the concave portion 36 (inside in the radial direction of the rotating electrical machine) is a fitting concave portion 38 into which the fitting convex portion 22 (see FIG. 2) of the tooth component piece 16 is press-fitted. Further, the fitting recess 38 is formed so as to narrow toward the radially outer side (in the direction of the arrow R1) of the rotating electrical machine in a plan view. A pair of fitting recess-side tapered surfaces T2 (second tapered surfaces) are formed on the arrow C1 direction) and the other circumferential side (arrow C2 direction).

  In addition, the tip side of the recess 36 (outside in the radial direction of the rotating electrical machine) is a pair of coverings whose surfaces are respectively directed to the circumferential one side (arrow C1 direction) and the other circumferential side (arrow C2 direction) of the rotating electrical machine. The distal end side widened portion 40 has a contact surface T4 (fourth tapered surface). Further, the pair of contacted surfaces T4 are expanded toward the radially outer side (in the direction of arrow R1) of the rotating electrical machine.

  As shown in FIG. 5, the core annular portion constituting portion 14 is configured by laminating the above-described core annular portion constituting pieces 30 in the axial direction (arrow L direction) of the rotating electrical machine. The laminated core ring-shaped component pieces 30 are integrated through a caulking portion 42. Further, as shown in FIG. 1, by fitting the fitting convex portions 22 of the laminated tooth constituent pieces 16 into the fitting concave portions 38 of the laminated iron core annular portion constituting pieces 30, The motor core 10 is configured by integrating the annular portion constituting portion 14 and the tooth portion 12. Further, as shown in FIG. 6, when the fitting convex portion 22 of the tooth constituent piece 16 is press-fitted into the fitting concave portion 38 of the core annular portion constituent portion 14, the contact surface of the tooth constituent piece 16 is obtained. The dimensions of each part are such that T3 abuts against the abutted surface T4 of the core annular part constituting part 14 and the tip of the rhombus convex part 34 forming the recessed part 36 abuts on the step part 26 formed on the tooth constituting piece 16. Is set.

  Further, in the present embodiment, the contact area between the contact surface T3 of the tooth constituent piece 16 and the abutted surface T4 of the core annular portion constituent piece 30 is determined by the fitting convex portion 22 of the tooth constituent piece 16 and the core annular portion configuration. The dimension of each part is set so that it may become larger than the contact area with the fitting recessed part 38 of the part 14. FIG.

(Operation and effect of this embodiment)
Next, the operation and effect of this embodiment will be described.

  As shown in FIG. 1 and FIG. 6, in this embodiment, the fitting convex portions 22 of the laminated tooth constituent pieces 16 are fitted into the fitting concave portions 38 of the laminated core annular portion constituent pieces 30. By combining, the teeth part 12 is supported by the outer peripheral part of the core annular part constituting part 14. Further, in the present embodiment, a pair of contact surfaces T3 whose surfaces are directed in the circumferential direction of the rotating electrical machine are provided on the tooth constituent piece 16, and the contacted surfaces with which the pair of contact surfaces T3 abut are provided. T4 is provided on the outer peripheral portion of the core annular portion constituting piece 30, and the abutted surface T4 of each core annular portion constituting piece 30 on which the contact surface T3 of each laminated tooth constituting piece 16 is laminated. , The inclination of the tooth portion 12 with respect to the core annular portion constituting portion 14 is regulated. In the present embodiment, when the magnetic flux flows from the tooth portion 12 to the core annular portion constituting portion 14, or when the magnetic flux flows from the core annular portion constituting portion 14 to the teeth portion 12, the fitting convex portion 22 is fitted. In addition to the boundary with the recess 38, the magnetic flux can flow through the boundary between the contact surface T3 and the contacted surface T4. That is, in this embodiment, it can suppress that magnetic flux falls in the boundary of the teeth part 12 and the core annular part structural part 14, and suppress the inclination of the teeth part 12 with respect to the core annular part structural part 14. Can do.

  Further, as shown in FIG. 6, in the present embodiment, the fitting convex portion 22 of the tooth constituent piece 16 and the fitting concave portion 38 of the core annular portion constituent piece 30 are press-fitted and fitted. The stress near the part is high. When magnetic flux flows through such a high-stress part, the magnetic flux tends to decrease at the part. However, in the present embodiment, the magnetic flux can be flowed through the boundary between the contact surface T3 and the contacted surface T4, in which the magnetic flux is unlikely to be lowered (it is difficult to become a high stress portion), and the fitting convex portion 22 and the fitting are fitted. Magnetic flux can flow through the boundary between the contact surface T3 and the contacted surface T4 having an area larger than the contact area with the combined recess 38. That is, in this embodiment, it can suppress further that a magnetic flux falls in the boundary of the teeth part 12 and the core annular part structure part 14. FIG.

  Further, in the present embodiment, the tooth portion 12 is supported by the core annular portion constituting portion 14 by the fitting convex portion-side tapered surface T1 and the fitting concave portion-side tapered surface T2 contacting each other. Here, since the fitting convex portion side tapered surface T1 and the fitting concave portion side tapered surface T2 are set so as to be narrowed toward the radially outer side of the rotating electrical machine, the fitting convex portion 22 becomes the fitting concave portion 38. When press-fitting, the tooth portion 12 tends to move toward the core annular portion constituting portion 14 side (toward the radial inner side of the rotating electrical machine). As a result, the contact surface T3 of each laminated tooth constituent piece 16 is pressed against the abutted surface T4 of each laminated core part 30. Thereby, in this embodiment, while the teeth part 12 can be firmly supported by the outer peripheral part of the iron core annular part component 14, the teeth part 12 is in the circumferential direction of the rotating electrical machine with respect to the iron core annular part component 14. Inclination can be further suppressed.

  In the present embodiment, the fitting convex side taper surface T1 and the fitting concave side taper surface T2 are set so as to be narrowed outward in the radial direction of the rotating electrical machine, and the contact surface T3 and the contacted side Although the example in which the contact surface T4 is set to expand toward the radially outer side of the rotating electrical machine has been described, the present invention is not limited to this. For example, as an example, the contact surface T3 and the contacted surface T4 can be set so as to narrow toward the outside in the radial direction of the rotating electrical machine.

  Further, in the present embodiment, the contact area between the contact surface T3 of the tooth constituent piece 16 and the contacted surface T4 of the core annular part constituent piece 30 is determined by the fitting convex part 22 of the tooth constituent piece 16 and the core annular part structure. Although the example set larger than the contact area with the fitting recessed part 38 of the part 14 has been demonstrated, this invention is not limited to this. For example, the contact area between the contact surface T3 of the tooth component piece 16 and the abutted surface T4 of the core annular portion component piece 30 is such that the fitting convex portion 22 of the tooth component piece 16 and the core annular portion component portion 14 are fitted. It can also be set to be the same as the contact area with the recess 38.

(Vehicle motor 44)
Next, a vehicle motor 44 as a rotating electrical machine including the motor core 10 according to the embodiment will be described with reference to FIGS. 7 to 9C.

  As shown in FIG. 7, the vehicle motor 44 of the present embodiment includes a yoke 46 that constitutes an outline of the vehicle motor 44 and an armature 48 arranged in the yoke 46 as main elements. ing. Specifically, the yoke 46 is formed in a bottomed cylindrical shape, and a bearing member 52 on which one end of a shaft 68 described later is supported is fixed to the bottom wall 50 of the yoke 46. Furthermore, a plurality of magnets 56 are joined along the circumferential direction on the radially inner side of the circumferential wall 54 of the yoke 46. The open end of the yoke 46 is closed by a support member 62 that supports the brush 58 and the brush holder 60, and a bearing member 52 that supports the other end of the shaft 68 is fixed to the support member 62. Yes.

  Further, as shown in FIG. 8, the armature 48 is configured by fixing an armature main body 64 and a commutator 66 for energizing the armature main body 64 to a cylindrical shaft 68. Furthermore, the armature body 64 is configured by winding a conductive winding 70 around the tooth portion 12 (see FIG. 1) of the motor core 10 described above. The manufacturing method of the armature body 64 will be briefly described. First, as shown in FIG. 9A, a coil formed by sealing a conductive winding 70 wound in an annular shape with a sealing resin. The pieces 72 are arranged radially along the circumferential direction of the rotating electrical machine. Next, as shown in FIG. 9B, the tooth portion 12 is inserted into the opening 74 of the coil piece 72 from the outside in the radial direction of the coil pieces 72 arranged in an annular shape. Next, as shown in FIG. 9C, by moving the core annular portion constituting portion 14 in the axial direction of the rotating electrical machine, each of the iron cores in which the fitting convex portions 22 of the laminated tooth constituting pieces 16 are laminated. The core annular part constituting part 14 and the tooth part 12 are integrated by fitting into the fitting recess 38 of the annular part constituting piece 30. The armature body 64 is configured through the above steps.

  Further, as shown in FIGS. 7 and 8, the shaft 68 is press-fitted into the axial center portion of the armature body 64 (the axial center portion of the core annular portion constituting portion 14). A commutator 66 is attached. Note that a terminal portion of the winding 70 constituting the coil piece 72 is connected to the commutator 66. Thereby, it is possible to energize the winding 70 constituting the coil piece 72 via the brush 58 that is in sliding contact with the commutator 66.

  As described above, in the present embodiment, the vehicle motor 44 is configured to include the motor core 10 that can prevent the magnetic flux from decreasing at the boundary between the tooth portion 12 and the core annular portion constituting portion 14. Therefore, the vehicle motor 44 can be reduced in size and output.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and various modifications other than the above can be implemented without departing from the spirit of the present invention. Of course.

DESCRIPTION OF SYMBOLS 10 ... Motor core (laminated iron core of a rotary electric machine), 12 ... Teeth part, 14 ... Iron core annular part constituent part, 16 ... Teeth constituent piece, 22 ... Fitting convex part, 30 ... Iron core annular part constituent piece, 38 ... Fitting concave part ,
44 ... Vehicle motor (rotary electric machine), C1 ... One side in the circumferential direction of the rotary electric machine (circumferential direction of the rotary electric machine), C2 ... The other circumferential side of the rotary electric machine (circumferential direction of the rotary electric machine), R1 ... Diameter of the rotary electric machine Outward direction (radial direction of rotating electrical machine), R2 ... Inside radial direction of rotating electrical machine (radial direction of rotating electrical machine), T1 ... Fitting convex side taper surface (first taper surface), T2 ... Fitting concave side taper surface (Second taper surface), T3 ... contact surface (third taper surface), T4 ... contacted surface (fourth taper surface)

Claims (3)

A pair of contact surfaces extending in the radial direction of the rotating electrical machine and having a fitting convex portion provided at the radially inner end of the rotating electrical machine and having a surface directed in the circumferential direction of the rotating electrical machine A teeth portion formed by laminating a tooth constituent piece provided in a radially outer portion of the rotating electrical machine with respect to the fitting convex portion in the axial direction of the rotating electrical machine,
The outer peripheral portion includes a fitting concave portion into which the fitting convex portion is fitted, and a pair of abutted surfaces that are faced in the circumferential direction of the rotating electrical machine and are in contact with the pair of abutting surfaces. A core annular part constituent part configured by stacking the core annular part constituent pieces in the axial direction of the rotating electrical machine;
A laminated iron core of a rotating electrical machine with   The laminated core of the rotating electrical machine according to claim 1, wherein a contact area between the contact surface and the contacted surface is set larger than a contact area between the fitting convex portion and the fitting concave portion. The fitting convex portion is configured to have a pair of first tapered surfaces that narrow toward the radially outer side of the rotating electric machine, and the fitting concave portion narrows toward the radially outer side of the rotating electric machine. The teeth portion is supported by the core annular portion constituting portion by contacting the first tapered surface and the second tapered surface.
The pair of contact surfaces are third tapered surfaces that expand outward in the radial direction of the rotating electrical machine, and the pair of contacted surfaces expands outward in the radial direction of the rotating electrical machine. The teeth portion is inclined in the circumferential direction of the rotating electrical machine with respect to the core annular portion constituting portion when the third taper surface and the fourth taper surface come into contact with each other. The laminated iron core of the rotating electrical machine according to claim 1 or 2, wherein the core is regulated.

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