JP6099582B2 - Rotating electrical machine laminated iron core, stator, rotating electrical machine - Google Patents

Description

  The present invention can increase the workability of the winding by expanding the interval between the core pieces, and can realize the connection between the core pieces at a low cost. It relates to electrical machinery.

  In a conventional laminated iron core of a rotating electrical machine, a long hole is formed in the longitudinal direction of the core member. As a result, the protrusions to be fitted can move by a long distance along the holes. For this reason, it becomes possible to enlarge the space | interval of each core piece. Furthermore, the workability of the winding can be improved. Moreover, core pieces are connected with a pin member. This facilitates the rotation of the iron core, and can improve the assembly accuracy of the iron core (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-201458

  In a conventional laminated iron core, stator, and rotating electric machine of a rotating electric machine, the length of the hole of the core piece into which the protrusion of the core piece is fitted is restricted by the shape of the overlapping portion of the core pieces. In order to further improve the workability of the winding, in order to further increase the interval between the core pieces, it is necessary to change the shape of the overlapping portion of the core pieces. In this case, since the magnetic characteristics of the core piece are changed, there has been a problem that the re-evaluation of the characteristics of the rotating electrical machine is required and the development cost increases. Moreover, when connecting core pieces with a pin member, there existed a problem that costs, such as the material cost of a pin member and the processing cost of a connection process, increased.

  The present invention has been made to solve the above-described problems, and can increase the workability of the winding by expanding the interval between the core pieces, and can reduce the connection between the core pieces at a low cost. It is an object of the present invention to provide a laminated core, a stator, and a rotating electrical machine for a rotating electrical machine that can be realized.

The laminated iron core of the rotating electrical machine of the present invention is
A back yoke portion in which one end portion in the circumferential direction of the rotating electrical machine is formed in a convex portion with respect to the circumferential direction, and the other end portion is formed in a concave portion in the circumferential direction;
A plurality of plate-like core pieces having a magnetic teeth portion formed to protrude from the back yoke portion to the inner peripheral side of the rotating electrical machine,
The convex portion of the back yoke portion and the concave portion of the back yoke portion are in contact with each other and arranged in an annular shape,
A laminated iron core of a rotating electrical machine formed by laminating a plurality in the axial direction of the rotating electrical machine,
In the axial lamination,
A first core member in which the convex portions of the plurality of core pieces arranged in a ring are arranged in the same direction as the rotation direction of the rotating electrical machine;
A plurality of second core members in which the convex portions of the plurality of core pieces arranged in a ring are arranged in a direction opposite to the rotation direction of the rotating electrical machine are alternately stacked,
At least one of the first core members or at least one of the second core members is coupled to the back yoke portions of the adjacent core pieces on the outer peripheral side of the rotating electrical machine from the convex portions and the concave portions. A connecting part is formed,
The core piece of the first core member and the core piece of the second core member of at least one set of the axial direction include the convex portion of one core piece and the convex portion of the other core piece. And a rotating part that is rotated while being connected in the axial direction ,
The core piece of the first core member and the core piece of the second core member of at least one set of the axial direction include the convex portion of one core piece and the convex portion of the other core piece. And an anti-rotation portion that is not rotated .

The stator of the present invention is
In the laminated core of the rotating electrical machine described above,
An insulator attached to the magnetic pole teeth portion;
A drive coil wound through the insulator is formed.

The rotating electrical machine of the present invention is
A cylindrical housing;
The stator described above fixed in the housing;
And a rotor disposed in an annular shape of the stator and rotatably held by the housing.

Since the laminated iron core, the stator, and the rotating electrical machine of the rotating electrical machine of the present invention are configured as described above,
The interval between the core pieces can be increased to improve the workability of the windings, and the connection between the core pieces can be realized at a low cost.

It is a top view which shows a part of laminated iron core of the rotary electric machine in Embodiment 1 of this invention. It is the top view and partial enlarged view which show the structure of the rotary electric machine using the laminated iron core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the laminated iron core of the rotary electric machine shown in FIG. It is a perspective view which shows the structure of the laminated iron core of the rotary electric machine shown in FIG. It is a top view which shows the division | segmentation state of the laminated iron core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the 1st core member of the laminated iron core of the rotary electric machine shown in FIG. FIG. 7 is an enlarged plan view showing a first core member shown in FIG. 6. It is a top view which shows the structure of the 3rd core member of the laminated core of the rotary electric machine shown in FIG. FIG. 9 is an enlarged plan view showing a third core member shown in FIG. 8. It is a top view which shows the structure of the 2nd core member of the laminated iron core of the rotary electric machine shown in FIG. It is an enlarged plan view which shows the 2nd core member shown in FIG. It is a perspective view which shows the manufacturing method of the rotary electric machine shown in FIG. It is a perspective view which shows the manufacturing method of the rotary electric machine shown in FIG. It is a perspective view which shows the manufacturing method of the rotary electric machine shown in FIG. It is a top view which shows the manufacturing method of the rotary electric machine shown in FIG. It is a top view which shows the manufacturing method of the rotary electric machine shown in FIG. It is a top view which shows the structure of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the XX cross-section position of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the XX cross-section position of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the XX cross-section position of the rotary electric machine shown in FIG. It is a top view which shows the detail of the rotation part of the laminated core of the rotary electric machine by Embodiment 2 of this invention. It is a top view which shows the structure of the 1st core member of the laminated iron core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the 3rd core member of the laminated core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the 2nd core member of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the YY cross-section position of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the YY cross-section position of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the YY cross-section position of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the YY cross section of the laminated core of the rotary electric machine shown in FIG. 21 of the laminated core of another rotary electric machine by Embodiment 2 of this invention. It is a top view which shows the detail of the rotation part of the laminated core of the rotary electric machine by Embodiment 3 of this invention. It is a top view which shows the structure of the 1st core member of the laminated iron core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the 3rd core member of the laminated core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the 2nd core member of the laminated core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the ZZ cross-section position of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the ZZ cross-section position of the laminated iron core of the rotary electric machine shown in FIG. It is sectional drawing which shows the structure of the ZZ cross-section position of the laminated iron core of the rotary electric machine shown in FIG. It is a top view which shows the structure of the 3rd core member which the other example of the laminated iron core of the rotary electric machine shown in FIG. 29 shows. It is a top view which shows the structure of the 2nd core member which shows the other example of the laminated core of the rotary electric machine shown in FIG.

Embodiment 1 FIG.
Embodiments of the present invention will be described below. 1 is a plan view showing a part of a laminated core of a rotary electric machine according to Embodiment 1 of the present invention. FIG. 2 is a plan view and a partially enlarged view of the rotating electric machine constituted by the laminated iron core of the rotating electric machine shown in FIG. 3 is a plan view showing the configuration of the laminated core of the rotating electrical machine shown in FIG. FIG. 4 is a perspective view showing the configuration of the laminated core of the rotating electrical machine shown in FIG. FIG. 5 is a plan view showing a divided state of the laminated core of the rotating electrical machine shown in FIG. FIG. 6 is a plan view showing the configuration of the first core member of the laminated core of the rotating electrical machine shown in FIG. FIG. 7 is an enlarged plan view showing a part of the core piece of the first core member shown in FIG.

  FIG. 8 is a plan view showing the configuration of the third core member of the laminated core of the rotating electrical machine shown in FIG. FIG. 9 is an enlarged plan view showing a part of the core piece of the third core member shown in FIG. FIG. 10 is a plan view showing a configuration of the second core member of the laminated core of the rotating electrical machine shown in FIG. FIG. 11 is an enlarged plan view showing a part of the core piece of the second core member shown in FIG. 12 to 14 are perspective views showing a manufacturing method of the rotating electrical machine shown in FIG. 15 and 16 are plan views showing a method of manufacturing the rotating electrical machine shown in FIG. FIG. 17 is an enlarged plan view showing a part of the laminated core of the rotating electrical machine shown in FIG. As shown in FIG. 14, this figure shows a linear state before the rotating claw portion is refracted in the axial direction and before the laminated iron core rotates. 18 to 20 are cross-sectional views showing the configuration of the XX cross-sectional position of FIG. 17 in the method of manufacturing the rotating electrical machine shown in FIG.

  In the figure, the rotating electrical machine 100 is composed of a housing 1, a stator 2, and a rotor 6. The housing 1 is formed of a cylinder. The stator 2 is formed in an annular shape and is fixed in the housing 1. The rotor 6 is disposed in the ring of the stator 2 and is held by the housing 1 so as to be rotatable in the stator 2. Furthermore, the rotor 6 includes a plurality of permanent magnets 7 fixed to the outer peripheral portion thereof. The stator 2 includes a laminated iron core 3, an insulator 5, and a drive coil 4. The insulator 5 is attached to the laminated iron core 3. The drive coil 4 is formed by being wound around an insulator 5.

  As shown in FIG. 5, the rotating electrical machine 100 is formed of two (plural) arcuate laminated cores 3. One laminated iron core 3 is formed by a plurality (9 in this example) of core blocks 12. The laminated iron core 3 is configured by a plurality of core blocks 12 being connected to each other so as to be rotatable (details will be described below). The core block 12 is configured by laminating a plurality of core pieces 13 in the axial direction C of the rotating electrical machine 100. In the core piece 13, the back yoke portion 14 and the magnetic pole tooth portion 15 are formed of a plate-like magnetic material. The back yoke portion 14 is formed with a convex portion 16 in the circumferential direction A at one end portion of the rotating electrical machine 100 and a concave portion 17 in the circumferential direction A at the other end portion. The magnetic pole tooth portion 15 is formed to protrude from the back yoke portion 14 to the inner peripheral side B of the rotating electrical machine 100.

  Further, the core piece 13 is provided with a caulking portion 19 for laminating and connecting in the axial direction C at a location other than where the convex portion 16 and the concave portion 17 are formed. The yoke portion 14 is formed at two locations. In the plurality of laminated iron cores 3, the plurality of core pieces 13 are formed in an annular shape so that the convex portion 16 of the back yoke portion 14 and the concave portion 17 of the back yoke portion 14 come into contact with each other. The first core member 21 and the third core member 22 as the first core member in which the convex portions 16 of the plurality of core pieces 13 arranged in an annular shape are arranged in the same direction as the rotation direction A1 of the rotating electrical machine 100, and in an annular shape A plurality of second core members 23 in which the convex portions 16 of the plurality of arranged core pieces 13 are arranged in the rotation direction A1 and the reverse direction A2 of the rotating electrical machine 100 are alternately stacked.

  Here, the combination of the first core member 21, the second core member 23, the third core member 22, and the second core member 23 is laminated four times in order from the lower end side in the axial direction C, and the third core member is further formed thereon. 22 and the combination of the 2nd core member 23 are laminated | stacked twice (refer FIG. 18). The first core member 21 has a coupling portion 25 that couples the back yoke portions 14 of the adjacent core pieces 13 to each other on the outer peripheral side D of the rotating electrical machine 100 from the convex portion 16 and the concave portion 17.

  As shown in FIG. 2 (b), the coupling portion 25 has weak rigidity portions 31 and 32 whose rigidity is weaker than that of other portions. A weakly rigid portion 31 is formed at a location in contact with 14, and a weakly rigid portion 32 is formed at the central location of the coupling portion 25. In addition, although the example in which the weakly rigid portions 31 and 32 are formed with a narrow width dimension has been shown, the present invention is not limited to this, and for example, it may be formed with a thin thickness direction. However, when manufacturing with a press, changing the width dimension can easily cope with the change.

  Furthermore, the rotation part 11 which connects the convex part 16 of the core piece 13 of the first core member 21 of the axial direction C and the convex part 16 of the core piece 13 of the second core member 23 in the axial direction C and rotates. Are formed respectively. These rotating portions 11 are formed in the rotating hole portion 28 formed in the convex portion 16 of the core piece 13 of the second core member 23 and the convex portion 16 of the core piece 13 of the first core member 21 in the axial direction C. And a rotation claw portion 18 that is refracted and inserted into the rotation hole 28. Further, the convex portion 16 of the core piece 13 of the third core member 22 is formed with a rotation hole portion 20 into which the rotation claw portion 18 can be inserted. Therefore, the rotation hole portion 20 formed in the third core member 22 is formed as a part of the rotation portion 11.

  A method for manufacturing the laminated core, the stator, and the rotating electrical machine of the rotating electrical machine of the first embodiment configured as described above will be described. First, the first core member 21, the second core member 23, and the third core member 22 are each formed by press working. As shown in FIGS. 6 and 7, in the first core member 21, a coupling portion 25 that connects adjacent core pieces 13 is formed in the back yoke portion 14. The coupling portion 25 is formed so as to maintain a distance at which the convex portion 16 and the concave portion 17 of the adjacent core piece 13 do not contact each other. And the rotation claw part 18 of the state before refracting to the axial direction C is formed in the convex part 16 of each core piece 13, respectively. Further, as shown in FIGS. 8 and 9, the third core member 22 is not formed with the coupling portion 25, and the core pieces 13 are formed separately. And the rotation part 28 in which the rotation nail | claw part 18 can be inserted is formed in the convex part 16 of each core piece 13, respectively.

  The first core member 21 and the third core member 22 are the first core members formed so that the convex portions 16 face the rotation direction A1 of the rotating electrical machine 100. Further, as shown in FIGS. 10 and 11, the second core member 23 is not formed with the coupling portion 25, and each core piece 13 is formed separately. And the rotation part 20 in which the rotation nail | claw part 18 can be inserted is formed in the convex part 16 of each core piece 13, respectively. Thus, each core member 21, 22, 23 (each core piece 13) is linearly formed by press molding in order to reduce material.

  Next, as shown in FIG. 12, these core members 21, 22, and 23 are stacked in the axial direction C of the rotating electrical machine 100. The stacking order is such that the combination of the first core member 21, the second core member 23, the third core member 22, and the second core member 23 is stacked four times in order from the lower end side in the axial direction C. A combination of the three core member 22 and the second core member 23 is laminated twice. In this lamination, the position of the core piece 13 adjacent to the second core member 23 and the third core member 22 is not determined. For this reason, the position of the second core member 23 and the third core member 22 is determined by stacking the core pieces 13 at the caulking portion 19 and fixing the core pieces 13 to the first core member 21. And as shown above, since each core member 21,22,23 is formed in linear form, after lamination | stacking, it is formed in linear form.

  Further, since the magnetic pole teeth 15 are linearly developed so as to be parallel, the magnetic characteristics of the core pieces 13 can be made uniform, and characteristics such as efficiency and torque pulsation can be improved. Thereafter, although illustration is omitted, the insulator 5 may be attached to the magnetic pole tooth portion 15 of each core piece 13 of the laminated core 3, and the drive coil 4 may be wound via the insulator 5. In this case, since the gaps between the magnetic pole tooth portions 15 of the adjacent core pieces 13 are greatly separated from each other, the drive coil 4 is easily wound.

  Next, as shown in FIGS. 13 and 15, the first core member is used to bring the convex portions 16 and the concave portions 17 of the adjacent core pieces 13 of the laminated core members 21, 22, and 23 into contact with each other. 21 is deformed with respect to the upper side in the axial direction C of the rotating electrical machine 100, and adjacent core pieces 13 of the core members 21, 22, 23 are deformed with respect to the circumferential direction A of the rotating electrical machine 100. Move closer. Finally, as shown in FIGS. 14 and 16, the convex portions 16 and the concave portions 17 of the core pieces 13 adjacent to the core members 21, 22, and 23 are brought into contact with each other. At this time, as shown in FIGS. 17 and 18, the rotation claw portion 18, the rotation hole portion 20, and the rotation hole portion 28 are arranged at the same position in the axial direction C.

  Next, as shown in FIG. 19, the rotating claw 18 is pushed up and refracted in the axial direction C by using the jig 35, and the rotating claw 18 is inserted into the rotation holes 20 and 28. And finally, as shown in FIG. 20, all the rotation claw parts 18 are pushed up in the axial direction C and refracted, and inserted into the rotation holes 20 and 28, and the rotation parts 11 are formed. The Next, the laminated iron core 3 is turned around each turning portion 11 as the center of rotation, and the two laminated iron cores 3 are formed in an annular shape as shown in FIGS. 3 and 4. Next, the annular laminated iron core 3 in which the insulator 5 and the drive coil 4 are formed is installed in the housing 1 as the stator 2, and the rotor 6 is arranged in the stator 2, and the rotating electrical machine 100 is configured.

  According to the laminated core, the stator, and the rotating electrical machine of the rotating electrical machine of the first embodiment configured as described above, the press-processed core pieces are assembled in a regular position in a subsequent process and connected in a rotatable state. The interval between the core pieces can be increased without changing the shape of the overlapping part of the core pieces. Accordingly, the winding workability of the drive coil is improved and the manufacturing cost can be reduced. Moreover, since the winding density of the drive coil is improved, the performance of the rotating electrical machine is improved.

  Further, after the press working, the rotating claw portion of the convex portion of the core piece is not yet deformed in the axial direction, and there is no resistance when positioning. Therefore, the process of reducing the interval between the core pieces is simplified, and the manufacturing cost of the rotating electrical machine can be reduced. Furthermore, since the positioning accuracy can be kept good, the performance of the rotating electrical machine is improved.

In addition, by providing a coupling portion that integrates adjacent core pieces at intervals, the core pieces do not fall apart even when the rotating claw portions of the core pieces are not inserted into the rotating hole portions of the core pieces. Therefore, it is easy to handle the core piece.
Further, since the axially and circumferentially extending core pieces are connected by a rotatable rotating portion, the adjacent axially and circumferentially oriented core pieces can be connected without using a pin member as in the prior art. Manufacturing cost can be reduced.

Furthermore, since this rotation part is formed by deforming a part of the core piece, a connecting member is not required, and the manufacturing cost can be reduced.
The coupling portion that integrates the core pieces is disposed inside the outer diameter of the stator. Therefore, when the stator is fixed to the housing, the removal process of the coupling portion is not necessary, and the cost of the rotating electrical machine can be reduced.
A weakly rigid portion is provided in the joint portion for integrating the core pieces.
Therefore, the load for bending the coupling portion in the connection positioning step can be reduced, and the manufacturing cost can be reduced.
Further, the bending position of the coupling portion can be controlled, and the manufacturing cost can be reduced by simplifying the manufacturing equipment.

In addition, in the said Embodiment 1, although the example which forms a rotation nail | claw part in the convex part of the core piece of a 1st core member was shown, it is not restricted to this, The core piece of a 3rd core member is It is also possible to form a rotating claw portion on the convex portion. Furthermore, if the length of the rotating claw portion refracted in the axial direction is changed, the rotating claw portion can be formed on both the first core member and the third core member.
Moreover, in the said Embodiment 1, a rotation part is formed in the rotation hole part formed in the convex part of the core piece of a 2nd core member, and the convex part of the core piece of a 1st core member, and is an axial direction. However, the present invention is not limited to this, and the first core member can be turned to the turning hole and the second core member. A moving claw portion may be formed.

Moreover, in the said Embodiment 1, although the example which forms a coupling | bond part in a 1st core member was shown, it is not restricted to this, In the 2nd core member, back yoke parts of adjacent core pieces are mutually connected. You may form the coupling | bond part couple | bonded on the outer peripheral side of a rotary electric machine from a convex part and a recessed part.
Moreover, in the said Embodiment 1, although the structure which does not have a rotation part is shown in the axial upper layer side of a laminated iron core, it is not restricted to this, In the structure similar to a 3rd core member, The other core member is configured to add the rotation claw portion, the third core member on the upper layer side is changed to the other core member, the rotation claw portion is refracted in the axial direction, and the second core member You may make it insert in a rotation hole part and provide a rotation part.

Moreover, in the said Embodiment 1, although the example which has provided the rotation nail | claw part or the rotation hole part in all the core pieces is shown, it is not restricted to this, A core piece is formed cyclically | annularly. Therefore, it is not always necessary to provide all the core pieces.
Moreover, in the said Embodiment 1, although the example which refracts a rotation nail | claw part to the axial direction upper direction was shown, it is not restricted to this, The lamination | stacking location of a rotation claw part and a rotation hole part Is appropriately set, the rotating claw portion may be refracted downward in the axial direction and inserted into the rotating hole portion to form the rotating portion.

In the first embodiment, the case where the step of removing the joint portion is not provided is shown. However, the present invention is not limited to this, and the joint portion may be removed after the laminated iron core is formed in an annular shape.
In the first embodiment, an example in which two laminated iron cores are combined to form one laminated iron core has been shown. However, the present invention is not limited to this, and one laminated iron core is integrally formed without being divided. Alternatively, one laminated iron core may be configured by combining three or more laminated iron cores.
In addition, since these are the same also in the following embodiment, the description is abbreviate | omitted suitably.

Embodiment 2. FIG.
FIG. 21 is a plan view showing details of a laminated core of a rotary electric machine according to Embodiment 2 of the present invention. Like FIG. 17 of the first embodiment, this figure is a straight line before the rotating claw portion 18 is refracted in the axial direction C and before the laminated iron core 3 is rotated, as shown in FIG. It shows the state. 22 is a plan view showing the configuration of the first core member of the laminated core of the rotating electrical machine shown in FIG. FIG. 23 is a plan view showing the configuration of the third core member of the laminated core of the rotating electrical machine shown in FIG. 24 is a plan view showing the configuration of the second core member of the laminated core of the rotating electrical machine shown in FIG. 25 to 27 are cross-sectional views showing the configuration of the YY cross-sectional position of the laminated core of the rotating electrical machine shown in FIG.

  In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted. The core piece 13 of the first core member 21 and the core piece 13 of the second core member 23 are connected to the convex portion 16 of one core piece 13 and the convex portion 16 of the other core piece 13 in the axial direction C. A rotation stop portion 36 that does not rotate is formed. The rotation stop portions 36 are formed in the rotation stop hole portion 44 formed in the convex portion 16 of the core piece 13 of the second core member 23 and the convex portion 16 of the core piece 13 of the first core member 21. It is formed with a rotation stop claw portion 42 that is refracted in the direction C and inserted into the rotation stop hole portion 44. Further, a rotation stop hole portion 46 into which the rotation stop claw portion 42 can be inserted is formed in the convex portion 16 of the core piece 13 of the third core member 22. Therefore, the rotation stop hole 46 formed in the third core member 22 is formed as a part of the rotation stop 36.

  A method for manufacturing the laminated iron core, the stator, and the rotating electrical machine of the rotating electrical machine of the second embodiment configured as described above will be described. First, as in the first embodiment, the first core member 21, the second core member 23, and the third core member 22 are each formed by pressing. In the present embodiment, as shown in FIG. 22, the first core member 21 is newly formed with a rotation claw portion 42 on the convex portion 16 of the core piece 13. Further, as shown in FIG. 23, the third core member 22 has a rotation stop hole portion 46 formed in the convex portion 16 of the core piece 13. Further, in the second core member 23, as shown in FIG. 24, a rotation stop hole portion 44 into which a rotation stop claw portion 42 can be inserted is formed on the convex portion 16 of each core piece 13, respectively.

  And each core member 21,22,23 is laminated | stacked as shown in FIG. 25 similarly to the said Embodiment 1. FIG. Then, as shown in FIG. 26, the rotating claw portion 18 is pushed up and refracted in the axial direction C by using a jig, and the rotating claw portion 18 is inserted into the rotation holes 20 and 28 to rotate the rotating portion. 11 are formed. Next, the laminated iron core 3 is turned around each turning portion 11 as the center of rotation, and the two laminated iron cores 3 are annular as shown in FIGS. 3 and 4 as in the first embodiment. To form. Then, in the state of FIG. 21, the rotation stop claw portion 42 and the rotation stop hole portion 44 are formed at different positions in the axial direction C, but the laminated iron core 3 is formed in an annular shape. The stop pawl 42 and the rotation stop hole 44 are in the same position in the axial direction C. Incidentally, the rotation stop hole 46 is naturally located at the same position in the axial direction C.

  Next, as shown in FIG. 27, the rotation stop pawl 42 is refracted by pushing it up in the axial direction C using a jig (not shown), and the rotation stop holes 44 and 46 are prevented from rotating. The claw portions 42 are inserted to form the rotation stop portions 36, respectively. As described above, the rotation stop pawl portion 42 and the rotation stop hole portion 44 are located at different positions with respect to the axial direction C before the rotation and at the same position with respect to the axial direction C after the rotation. Therefore, the adjacent core pieces 13 of the rotated laminated core 3 are prevented from rotating by the rotation stopping part 36 and fixed at this position. Then, the rotating electrical machine 100 is configured through the same steps as those in the first embodiment.

  According to the laminated iron core, the stator, and the rotating electric machine of the rotating electrical machine of the second embodiment configured as described above, the laminated iron core is used as a rotating portion as well as the same effects as those of the first embodiment. After rotating and forming an annular shape, the rotation of the adjacent core pieces can be fixed because rotation is stopped at the rotation stop portion, so that even when manufacturing a large rotating electrical machine with heavy weight, welding is performed. The core piece can be held without any other fixing step. Therefore, the manufacturing cost of the rotating electrical machine can be reduced. Moreover, since the positioning accuracy of the core piece is improved, the performance of the rotating electrical machine is improved.

  In the second embodiment, the example in which the rotating claw portion 18 and the rotation stopping claw portion 42 are refracted in the same direction with respect to the axial direction C has been described. However, the present invention is not limited to this. As shown in FIG. 4, the rotating claw portion 18 and the rotation stopping claw portion 42 can be refracted in different directions with respect to the axial direction C. If comprised in this way, since the location supported in the direction different from the axial direction C is formed, holding | maintenance of a core piece will become still more stable. This also applies to the following embodiments, and the description thereof will be omitted as appropriate.

Embodiment 3 FIG.
FIG. 29 is a plan view showing details of the rotating portion of the laminated core of the rotary electric machine according to Embodiment 3 of the present invention. Like FIG. 17 of the first embodiment, this figure is a straight line before the rotating claw portion 18 is refracted in the axial direction C and before the laminated iron core 3 is rotated, as shown in FIG. It shows the state. FIG. 30 is a plan view showing the configuration of the first core member of the laminated core of the rotating electrical machine shown in FIG. FIG. 31 is a plan view showing the configuration of the third core member of the laminated core of the rotating electrical machine shown in FIG. 32 is a plan view showing the configuration of the second core member of the laminated core of the rotating electrical machine shown in FIG. 33 to 35 are cross-sectional views showing the configuration of the ZZ cross-sectional position of the laminated core of the rotating electrical machine shown in FIG.

  In the figure, the same parts as those in the above embodiments are denoted by the same reference numerals, and description thereof is omitted. The core piece 13 of the third core member 22 and the core piece 13 of the second core member 23 are connected to the convex portion 16 of one core piece 13 and the convex portion 16 of the other core piece 13 in the axial direction C. A rotation stop portion 37 that does not rotate is formed. The rotation stop part 37 is formed in the protrusion 16 of the core piece 13 of the second core member 23 and formed in the rotation stop hole part 54 and the protrusion 16 of the core piece 13 of the third core member 22, and the axial direction C. And a rotation stop claw portion 53 that is refracted and inserted into the rotation stop hole portion 54. Further, a rotation stop hole portion 48 into which a rotation stop claw portion 53 can be inserted is formed in the convex portion 16 of the core piece 13 of the first core member 21. Therefore, the rotation stop hole portion 48 formed in the first core member 21 is formed as a part of the rotation stop portion 37.

  A method of manufacturing the laminated core, the stator, and the rotating electrical machine of the rotating electrical machine of the third embodiment configured as described above will be described. First, as in the above embodiments, the first core member 21, the second core member 23, and the third core member 22 are formed by pressing. In the present embodiment, as shown in FIG. 31, the third core member 22 is newly provided with a rotation claw portion 53 on the convex portion 16 of each core piece 13. Further, as shown in FIG. 30, the first core member 21 is formed with a rotation stop hole portion 48 into which the rotation stop claw portion 53 can be inserted in the convex portion 16 of the core piece 13. Further, as shown in FIG. 32, the second core member 23 is formed with a rotation stop hole portion 54 into which the rotation stop claw portion 53 can be inserted in the convex portion 16 of the core piece 13.

  And each core member 21,22,23 is laminated | stacked as shown in FIG. 33 similarly to said each embodiment. Then, as shown in FIG. 34, the rotating claw portion 18 is pushed up and refracted in the axial direction C by using a jig, and the rotating claw portion 18 is inserted into the rotation holes 20 and 28 to be rotated. 11 are formed. Next, the laminated iron core 3 is turned around each turning portion 11 as the center of rotation, and as shown in FIGS. 3 and 4, the two laminated iron cores 3 are annular as in the above embodiments. To form. Then, in the state of FIG. 29, although the rotation stop claw portion 53 and the rotation stop hole portion 54 are formed at different positions in the axial direction C, the laminated iron core 3 is formed in an annular shape. The stop pawl 53 and the rotation stop hole 54 are in the same position in the axial direction C. It should be noted that the rotation stop hole portion 48 is in the same position in the axial direction C as a matter of course.

  Next, as shown in FIG. 35, the rotation stop pawl 53 is pushed and refracted in the axial direction C by using a jig (not shown) to stop the rotation in the rotation stop holes 48 and 54. The claw part 53 is inserted and the rotation stop part 37 is formed, respectively. Thus, the rotation stop pawl portion 53 and the rotation stop hole portion 54 are located at different positions with respect to the axial direction C before turning and are at the same position with respect to the axial direction C after turning. Therefore, the adjacent core pieces 13 of the rotated laminated core 3 are prevented from rotating by the rotation stopping portion 37 and fixed at this position. And the rotary electric machine 100 is comprised through the process similar to said each embodiment hereafter.

  According to the laminated iron core, the stator, and the rotating electrical machine of the rotating electrical machine of the third embodiment configured as described above, the rotation hole portion and the rotating mechanism can be obtained as well as the same effects as those of the above-described embodiments. Since the core pieces formed by the hole and the rotating claw portion and the rotating claw portion are different, the strength of the rotating claw portion and the rotating claw portion is increased, and the fixing strength between adjacent core pieces is increased. Can be increased.

  In the third embodiment, the example in which the rotating claw portion and the rotation stopping claw portion are both provided in the first core member and the third core member as the first core member is shown. 36 and 37, the rotation formed on the convex portion 16 of the core piece 13 of the second core member 23 and refracted in the axial direction C and inserted into the rotation stop hole portion 48 is not limited. The pawl portion 50 and a rotation stop hole portion 52 into which the rotation pawl portion 50 can be inserted are formed in the convex portion 16 of the core piece 13 of the third core member 22.

  Therefore, the rotation stop hole portion 52 formed in the third core member 22 is formed as a part of the rotation stop portion 37. Further, the first core member 21 is formed in the same manner as shown in FIG. 30, and the rotation stop claw portion 50 is inserted into the rotation stop hole portion 48. Even if it forms in this way, since a rotation claw part and a rotation stop claw part will be formed in a different core member, there can exist an effect similar to the said Embodiment 3. FIG.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

1 housing, 2 stator, 3 laminated core, 4 drive coil,
5 insulators, 6 rotors, 7 permanent magnets, 11 rotating parts, 12 core blocks, 13 core pieces, 14 back yoke parts, 15 magnetic teeth parts, 16 convex parts,
17 recess, 18 rotating claw part, 19 staking part, 20 rotating hole part,
21 1st core member, 22 3rd core member, 23 2nd core member, 25 coupling | bond part,
28 Rotating hole part, 31 Weakly rigid part, 32 Weakly rigid part, 35 Jig, 36 Rotating stopper part, 37 Rotating stopper part, 42 Rotating stopper claw part, 46 Rotating stopper hole part, 44 Rotating stopper Hole,
48 rotation stop hole part, 52 rotation stop hole part, 50 rotation stop claw part, 53 rotation stop claw part,
54 rotating blind hole, 100 rotating electrical machine, A circumferential direction, A1 rotating direction, A2 reverse direction,
B Inner circumference side, C-axis direction, D Outer circumference side.

Claims (10)

A back yoke portion in which one end portion in the circumferential direction of the rotating electrical machine is formed in a convex portion with respect to the circumferential direction, and the other end portion is formed in a concave portion in the circumferential direction;
A plurality of plate-like core pieces having a magnetic teeth portion formed to protrude from the back yoke portion to the inner peripheral side of the rotating electrical machine,
The convex portion of the back yoke portion and the concave portion of the back yoke portion are in contact with each other and arranged in an annular shape,
A laminated iron core of a rotating electrical machine formed by laminating a plurality in the axial direction of the rotating electrical machine,
In the axial lamination,
A first core member in which the convex portions of the plurality of core pieces arranged in a ring are arranged in the same direction as the rotation direction of the rotating electrical machine;
A plurality of second core members in which the convex portions of the plurality of core pieces arranged in a ring are arranged in a direction opposite to the rotation direction of the rotating electrical machine are alternately stacked,
At least one of the first core members or at least one of the second core members is coupled to the back yoke portions of the adjacent core pieces on the outer peripheral side of the rotating electrical machine from the convex portions and the concave portions. A connecting part is formed,
The core piece of the first core member and the core piece of the second core member of at least one set of the axial direction include the convex portion of one core piece and the convex portion of the other core piece. And a rotating part that is rotated while being connected in the axial direction ,
The core piece of the first core member and the core piece of the second core member of at least one set of the axial direction include the convex portion of one core piece and the convex portion of the other core piece. It was stacked core of the rotating electrical machine rotation stop portion which is not rotated is that is formed while connected to the axial direction. The laminated core of the rotating electrical machine according to claim 1, wherein the rotating portions are respectively formed in the plurality of sets of the first core member and the second core member in the axial direction. The rotating part is
A rotation hole formed in the convex portion of one of the core pieces;
3. The rotating electrical machine according to claim 1, wherein the rotating electric machine is formed by a rotating claw portion formed on the convex portion of the other core piece and refracted in the axial direction and inserted into the rotating hole portion. Laminated iron core. The rotating electrical machine according to any one of claims 1 to 3 , wherein the rotation stop portions are respectively formed in the plurality of sets of the first core member and the second core member in the axial direction. Laminated iron core. The rotation stop portion is
A rotation hole portion formed in the convex portion of one of the core pieces;
Either in the convex portion of the other of the core pieces of claims 1 to 4, which is formed by rotation stopping claws and inserted into the rotation Tomeana portion is refracted in the axial direction 1 The laminated iron core of the rotating electrical machine according to item . The rotation stop portion is
A rotation hole portion formed in the convex portion of the other core piece,
5. The projection of one of the core pieces is formed with a rotation stop claw portion that is refracted in the axial direction and is inserted into the rotation stop hole portion . 6. The laminated iron core of the rotating electrical machine according to item . The lamination of the rotating electrical machine according to claim 5 or 6 , wherein the axial connection direction of the rotation part and the axial connection direction of the rotation stop hole part are different from each other. Iron core. In the laminated iron core of the rotary electric machine according to any one of claims 1 to 6 ,
An insulator attached to the magnetic pole teeth portion;
A stator formed with a drive coil wound through the insulator. The stator according to claim 8 is:
A stator formed by removing the coupling portion. A cylindrical housing;
The stator according to claim 8 or 9 , fixed in the housing,
A rotating electric machine comprising: a rotor disposed in an annular shape of the stator and rotatably held by the housing.

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