JP7113966B2 - Permanent magnet type rotary electric machine and manufacturing method of permanent magnet type rotary electric machine - Google Patents

Description

The present application relates to a permanent magnet type rotating electrical machine and a method for manufacturing a permanent magnet type rotating electrical machine.

In a rotating electric machine in which permanent magnets (hereafter referred to as magnets) are installed in the rotor, magnet-embedded rotors use less magnets than surface-mounted rotating electric machines, and are suitable for high-speed rotation. Because of its structure, it is widely used in automobiles, compressors, etc. As a conventional technique, in order to reduce the leakage of magnetic flux from the magnetic circuit created by the magnets, a plurality of embedding holes for inserting the magnets into the core of the rotor, and between the embedding holes and the outer circumference of the rotor core, A magnetic narrow portion (bridge portion) having a low magnetic flux density is disclosed (see, for example, Patent Document 1).

JP 2013-42596 A

However, in the technique disclosed in Patent Document 1, in order to form the bridge portion, an electromagnetic steel plate having a thickness of 0.5 mm is punched to form a magnet embedding hole, and a mechanical pressure is applied to the bridge portion. It is said that by crushing and denting and making the plate thickness thinner than other parts (for example, 0.35 mm), the magnetic path is blocked and the magnetic flux passing through this part is reduced to prevent magnetic flux leakage. It is shown. When the iron core is pressed in this way, the pressed bridge portion expands in the radial direction, and the outer diameter of the rotor is enlarged, thereby deviating from the dimensional tolerance. As a result, the pulsation of the magnetic flux increases, iron loss and vibration increase, and the centrifugal force resistance decreases.

The present application discloses a technique for solving the above-described problems, and provides a permanent magnet type rotating electric machine that reduces magnetic flux leakage, has centrifugal force resistance, and is capable of increasing torque, and a permanent magnet type rotating machine. The purpose is to provide electricity.

A permanent-magnet-type rotating electric machine disclosed in the present application is a permanent-magnet-type rotating electric machine that includes a rotor having a permanent magnet provided in an installation portion, and a stator, wherein the iron core of the rotor is an inner iron core. The inner iron core and the outer iron core are coupled by a coupler arranged at the magnetic pole center, and the permanent magnet is installed between the inner iron core and the outer iron core with the coupler interposed therebetween. a spacing portion having a magnetic spacing is formed from the peripheral end portion of the permanent magnet on the opposite side of the combined body toward the outer circumference of the iron core, and a resin spacing filler is provided in the spacing portion; and the spacing portion has a curved spacing portion having a radius of curvature at a location connected to the outer peripheral portion of the core, and the spacing portion extends linearly from the combined body through the curved spacing portion. The combined body has a hollow inside, end portions are provided on both axial end faces of the combined body, and the permanent magnet moves through the hollow part of the combined body. It is composed of an integrated permanent magnet that penetrates through, and the installation portion is provided on a line perpendicular to the magnetic pole center line of the iron core so as to face the coupling body.
In the method of manufacturing a permanent magnet type rotating electric machine disclosed in the present application, when filling the space with the space filler, at least one of the axial end faces of the iron core is covered with the space filler. It is equipped with a filling step of filling into.

According to the permanent magnet type rotating electric machine and the method for manufacturing the permanent magnet type rotating electric machine disclosed in the present application, it is possible to reduce magnetic flux leakage, have centrifugal force resistance, and achieve high torque.

1 is a conceptual diagram showing a cross section of a permanent magnet type rotating electric machine according to Embodiment 1; FIG. 4 is a diagram showing a cross section of the iron core of the rotor according to Embodiment 1; FIG. FIG. 2B is a cross-sectional view taken along the line AA of FIG. 2A; 4 is a diagram showing an inner core according to Embodiment 1; FIG. 4 is a diagram showing one pole of the outer core according to Embodiment 1; FIG. 1 shows a combined body according to Embodiment 1; FIG. 4 is a cross-sectional view showing another example of the iron core of the rotor according to Embodiment 1; FIG. FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 4 is a diagram showing another example of the iron core of the rotor according to Embodiment 1; FIG. 11 shows a combined body according to Embodiment 3;

Embodiments of the present application will be described with reference to the drawings. In the following description, when describing the axial direction, the radial direction, and the circumferential direction unless otherwise specified, they refer to the axial direction, the radial direction, and the circumferential direction of the rotor of the rotary electric machine, respectively.

Embodiment 1.
Embodiment 1 will be described based on the drawings. FIG. 1 is a cross-sectional view showing the concept of a permanent magnet type rotating electrical machine 100 (hereinafter abbreviated as rotating electrical machine 100), in which only a portion of an annular stator 60 is shown. 2A is a cross-sectional view of the core of the rotor according to Embodiment 1, and FIG. 2B is a cross-sectional view taken along the line AA of FIG. 2A.

As shown in FIG. 1 , the rotating electrical machine 100 includes a four-pole rotor 50 and a stator 60 . The stator 60 has distributed windings in which armature windings 60C are inserted into a plurality of grooves 60B provided in a stator core 60A. The stator core 60A has a structure in which thin magnetic steel sheets are laminated with a predetermined axial length. The rotor 50 is supported coaxially with the stator 60 via a shaft 70 inserted into the shaft insertion hole 70A. It comprises a first permanent magnet 3A and a second permanent magnet 3B, a combined body 4, and a gap filler 5 provided in the gap 500. As shown in FIG.
In the above example, the stator 60 is provided with distributed windings, but concentrated windings may be used.

The iron core 10 is laminated to have a predetermined axial length LC (see FIG. 2B) by punching thin magnetic steel sheets. Here, the iron core 10 is composed of a substantially square inner core 1 and a substantially eyebrow-shaped outer core 2, and the present embodiment shows an example of quadrupolar formation. FIG. 2A is a diagram showing the iron core 10, the first permanent magnet 3A and the second permanent magnet 3B, the coupling body 4, and the spacing fillers 5 provided in the spacing section 500 of the four-pole rotor 50. FIG. be. As shown in the figure, the inner iron core 1 and the outer iron core 2 forming the iron core 10 are perpendicular to the X-axis and Y-axis (hereinafter sometimes referred to as magnetic pole center lines) passing through the respective magnetic pole centers of the four poles. The arranged first permanent magnet 3A and second permanent magnet 3B and the first permanent magnet 3A and the second permanent magnet 3B extend in the outer peripheral direction of the iron core 10 from the opposite circumferential end of the combined body of the first permanent magnet 3A and the second permanent magnet 3B. They are mechanically and firmly coupled by the coupler 4 via the spacing portion 500 with a magnetic spacing W of 1 to 2 mm.
Furthermore, the spacing pad 5 provided in the spacing 500 shown in FIGS. 1 and 2A relieves stress on the coupling 4 during acceleration and deceleration of the rotor 50 .

Next, each component will be described in detail.
FIG. 3 is a partially enlarged view showing the inner core 1 for explaining one pole of the punched core 10. As shown in FIG. In the inner core 1 shown in FIG. 3, the magnet mounting portion 1S is provided with a stepped groove 1B having a predetermined depth H from an upper side 1A perpendicular to the Y-axis corresponding to the magnetic pole center line and a length LS. . A trapezoidal engaging portion 1C having a depth of T0 is formed in the central portion of the stepped groove 1B so as to engage with a protrusion 4A of a coupling body 4, which will be described later. Further, the upper side 1A extends in the outer peripheral direction of the iron core 10, has a radius of curvature R1, and is connected to the outer peripheral portion 1D.

The outer iron core 2 shown in FIG. 4 engages with the projecting portion 4A of the coupling body 4 at the central portion of the lower side 2A perpendicular to the Y-axis and at the portion corresponding to the engaging portion 1C of the inner iron core 1. A trapezoidal engaging portion 2C having a depth T0 is formed. Further, the lower side 2A of the outer core 2 extends in the outer peripheral direction of the core 10, has a radius of curvature R2, and is connected to the outer peripheral portion 2D. An outer peripheral portion 2D of the outer core 2 shown in FIG. 4 and an outer peripheral portion 1D of the inner core 1 shown in FIG.

As shown in FIGS. 1 and 2, the spacing portion 500 extends circumferentially with the spacing W from the side opposite to the side in contact with the combined body 4 of the first permanent magnet 3A and the second permanent magnet 3B. A linear interval portion 500A sandwiched between the upper side 1A of the inner core 1 and the lower side 2A of the outer core 2 in FIG. and a curved portion with a curvature radius R2 of the lower side 2A of the outer core 2, and the curved interval portion 500B is formed up to the outer peripheral portion of the core 10. The gap fillers 5 are formed in the straight gap portion 500A and the curved gap portion 500B, and prevent the gap fillers 5 from scattering radially outward against the centrifugal force generated when the rotor 50 rotates. It has a structure. This embodiment does not require a notch structure in the iron core portion for holding the space filler 5, which is advantageous for the magnetic properties of the iron core.

The combined body 4 shown in FIG. 5 has a trapezoidal projection 4A with a height T0 on the upper and lower sides of a rectangular parallelepiped having a width B in the circumferential direction, a height TH in the radial direction, and a length LC in the axial direction. and has a substantially anchor shape. The axial length LC of the combined body 4 is approximately the same as the axial length of the iron core 10, and the radial height TH is approximately the same as the radial thickness T of the first permanent magnet 3A and the second permanent magnet 3B. is. Here, the top side BT and the height T0 of the protrusion 4A are appropriately set so as to correspond to the centrifugal force generated when the rotor 50 rotates.

Also, the combined body 4, the first permanent magnet 3A and the second permanent magnet 3B are in surface contact with each other through contact surfaces. Also, the first permanent magnet 3A and the second permanent magnet 3B are in surface contact with the gap filler 5 at their contact surfaces.
For this reason, these contact surfaces firmly hold against the force in the direction perpendicular to the magnetic pole center line that is generated when the rotor 50 is accelerated and decelerated.

In this manner, the first permanent magnet 3A and the second permanent magnet 3B are attached to the magnet installation portion 1S of the inner core 1, and the protrusion 4A of the coupling body 4 is engaged with the engaging portion 1C of the inner core 1. At the same time, the protrusion 4A of the coupling body 4 is engaged with the engaging portion 2C of the outer iron core 2 that is in contact with the upper surfaces of the first permanent magnet 3A and the second permanent magnet 3B, so that the arrangement shown in FIG. done. The inner iron core 1 and the outer iron core 2 are laminated by a special jig so as to have a predetermined axial length LC. are arranged to form a quadrupole. The laminations of the inner core 1 and the outer core 2 may be fixed using a crimping structure.

A resin material, for example, is used for the gap filling material 5 . In the present embodiment, a thermoplastic or thermosetting resin material such as PPS resin (polyphenyl sulfide resin) is filled into the gap 500 as the gap filler 5 and then solidified. The resin material contains a filler, and may be a material other than the PPS resin material. Further, the space filling material 5 may be molded without filling, and after the space filling material 5 is formed in a single shape, it may be inserted into the space of the space portion 500 from the axial direction.

A resin material, for example, is used for the combined body 4 . In the present embodiment, for example, the combined body 4 may be formed in advance using the PPS resin into the shape shown in FIG. Alternatively, the PPS resin may be filled and solidified after laminating the core 10 . Also, the coupling member 4 may be made of a resin other than the PPS resin, or may be made of a non-magnetic metal material such as stainless steel (SUS) having the shape shown in FIG.

FIG. 6 is a cross-sectional view showing another example of the iron core of the rotor according to Embodiment 1, and shows a cross-sectional view corresponding to the AA cross section of FIG.
As shown in FIG. 6, the gap filler 5 may be molded so as to cover both axial end surfaces of the iron core 10, which are the uppermost and lowermost stages, with a resin material or the like. That is, the space fillings 5 are also formed as space fillings 5C and 5D on both axial end surfaces of the inner core 1 and the outer core 2 that constitute the core 10, respectively. In this example, the spacing fillers 5 constituting the rotor 50 are connected to the axial end faces of the iron core 10 as the spacing fillers 5C and 5D, so that the holding force against the centrifugal force generated when the rotor 50 rotates is stronger. become.
Further, when the combined body 4 and the space filling material 5 are made of the same resin material, the combined body 4 may be formed integrally with the space filling material 5 so as to be connected to both axial end surfaces of the iron core 10 .
The gap filler 5 may be formed so as to cover the axial end face of either the uppermost stage or the lowermost stage of the iron core 10 .

In this case, the method of manufacturing the permanent magnet type rotating electric machine is such that when filling the gap 500 with the gap filler 5 , at least one of the axial end faces of the iron core 10 is covered with the gap filler 5 . It should be equipped with a filling process. As a result, it is possible to obtain a permanent magnet type rotating electric machine with a strong holding force against the centrifugal force generated when the rotor rotates, by a simple manufacturing method.

In this way, the rotor 50 is positioned at a predetermined distance DS in the diametrical direction from the center of the rotor 50, the inner iron core 1 and the outer iron core 2 are opposed to each other with a gap W, and are engaged with the coupler 4, so that the magnetic poles The first permanent magnet 3A and the second permanent magnet 3B are arranged in the space portion 500 of the space W so as to sandwich the center line and come into surface contact with the combined body 4, and the space portion 500 is filled with the space filler 5. The spacing portion 500 extends radially from the first permanent magnet 3A and the second permanent magnet 3B, has a radius of curvature, and reaches the outer peripheral portion of the iron core 10, as shown in FIG. In the magnetic circuit from the rotor 50 to the stator 60, the space 500 functions as a magnetic resistance circuit, thereby preventing the leakage flux LF shown in FIG. Since it is coupled with the iron core 2 , the structure is strong against the centrifugal force of the rotor 50 .

The first permanent magnet 3A and the second permanent magnet 3B shown in FIG. As another example, as shown in FIG. 7, the outer iron core 2 is also provided in the step groove 2B, and the first permanent magnet 3A and the second permanent magnet 3B are provided so as to be sandwiched between the inner iron core 1 and the outer iron core 2. The interval W of the portion 500 may extend from the vicinity of the center of the thickness T of the first permanent magnet 3A and the second permanent magnet 3B.

Also, the diameter of the rotor 50 is selected according to the rating of the rotary electric machine 100, and the installation portion 1S of the first permanent magnet 3A and the second permanent magnet 3B is set. Another arrangement example of the first permanent magnet 3A and the second permanent magnet 3B on the iron core 10 in such a case, and another embodiment extending in the outer diameter direction with the predetermined distance DS of the interval W associated with this arrangement example are shown in FIGS.

In FIG. 8, the stepped groove shape is the same as that in FIG. 7, and the interval W is linearly extended from the side opposite to the portion in contact with the combined body 4 toward the outside, and the outer peripheral portion has a radius of curvature. It forms a rectilinear spacing fill 5 that does not extend. 9 shows a stepped groove 1B similar to that shown in FIG. 3, and FIG. 10 shows a stepped groove 2B provided only in the outer core 2. The rotor 50 having any of the shapes of the gap fillings 5 can prevent the generation of the leakage magnetic flux LF described in FIG.

In addition, in the first embodiment, the inner core 1 is substantially square and the outer core 2 is substantially eyebrow-shaped, and the thin electromagnetic steel sheets for punching these out can be made of materials having different dimensions, increasing the yield. The improvement makes it possible to save resources and reduce the size of the punching press device, thereby achieving a reduction in manufacturing costs.

Although the present application has shown an example of the rotor 50 having four poles, the rotor 50 may have other numbers of poles such as six poles. Further, in the rotor 50, the arrangement of the first permanent magnets 3A and the second permanent magnets 3B has been shown to be perpendicular to the magnetic pole center line. You can place it. 11A, 11B, 12A and 12B are diagrams showing other examples of the rotor core according to Embodiment 1, in which the first permanent magnet 3A and the second permanent magnet 3B are arranged with respect to the magnetic pole center line. It is symmetrical and arranged at an angle in a V shape that is convex towards the center of rotation.

11A, 11B, 12A and 12B, one side surface of the first permanent magnet 3A and the second permanent magnet 3B are in surface contact with the combined body 4 with the contact surface F1. Further, the other side surfaces of the first permanent magnet 3A and the second permanent magnet 3B are in surface contact with the gap filler 5 via the contact surface F2.
11A, 11B, 12A and 12B, the contact surfaces F1 and F2 and the step grooves 1B and 2B resist forces perpendicular to the magnetic poles generated during acceleration and deceleration of the rotor 50. strongly held.
Further, as in the configuration shown in FIG. 11B, the contact surface F1 between the first permanent magnet 3A and the second permanent magnet 3B, the coupling body 4 and the gap filler 5 may not be parallel to the magnetic pole center line.
11A shows an example in which the first permanent magnet 3A and the second permanent magnet 3B are inserted into the stepped groove 1B of the inner core 1, but as shown in FIGS. 12A and 12B, the outer core 2 is also provided with A step groove 2B may be provided so as to sandwich the first permanent magnet 3A and the second permanent magnet 3B. 12A and 12B, as shown in FIG. 11B, the contact surfaces of the first permanent magnet 3A and the second permanent magnet 3B, the coupling body 4 and the spacing filler 5 are parallel to the magnetic pole center line. It doesn't have to be.
11A, 11B, 12A and 12B has a straight line portion and a curved line portion as in FIGS. 1 and 2, but as shown in FIG. In addition, only the linear implant part is acceptable.

As described above, in the present embodiment, the permanent magnet type rotating electric machine includes a rotor having a permanent magnet provided in an installation portion, and a stator. The inner core and the outer core are coupled by a coupling body arranged at the magnetic pole center, and the permanent magnet is installed between the inner core and the outer core with the coupling body interposed therebetween, A spacing portion having a magnetic spacing is formed from the peripheral end portion of the permanent magnet opposite to the combined body toward the outer circumference of the iron core, and a resin spacing filler is provided in the spacing portion. Therefore, magnetic flux leakage can be reduced, centrifugal force resistance can be obtained, and high torque can be achieved.

In addition, since the combined body and the circumferential ends of the permanent magnets on the combined body side are in surface contact, they are strong against forces perpendicular to the magnetic poles generated during acceleration and deceleration of the rotor. is held to

In addition, since the space portion has a curved space portion having a radius of curvature at a portion connected to the outer peripheral portion of the iron core, the space filler can be firmly held without scattering.

In addition, since the spacing portion is connected to the curved spacing portion via the straight spacing portion that extends linearly from the combined body, the space filling material can be firmly held without scattering.

In addition, since the spacing portion is connected to the outer peripheral portion of the core through the straight spacing portion that extends linearly from the combined body, the structure of the core becomes simple, which is advantageous in terms of manufacturing.

In addition, the combined body has trapezoidal protrusions formed on its upper and lower portions, and has the same axial length as the axial length of the iron core, and the protrusions are formed on the outer iron core and the inner iron core. Since it engages with the provided engaging portion, it is possible to firmly hold the inner core and the outer core.

In addition, the permanent magnet is composed of a first permanent magnet and a second permanent magnet, and the installation portion is provided on a line orthogonal to the magnetic pole center line of the iron core so as to face the combined body. The structure of the iron core is simplified, and the magnetic properties are improved.

Further, since the installation portion is a stepped groove provided in each of the inner core and the outer core, which are opposed to each other, the permanent magnet can be held firmly.

Further, since the installation portion is a stepped groove provided in the inner core, the permanent magnet can be firmly held.

Further, since the installation portion is a stepped groove provided in the outer iron core, the permanent magnet can be firmly held.

In addition, the permanent magnets are arranged in a V-shape that is symmetrical with respect to the magnetic pole center line and protrudes toward the center of rotation, thereby improving the magnetic characteristics.

Moreover, since the gap filler is integrally connected so as to cover at least one of the axial end faces of the iron core, the holding force against the centrifugal force generated when the rotor rotates is strengthened.

Further, since the combined body is made of either a resin material or a non-magnetic metal material, the magnetic properties are improved.

In addition, since the combined body is made of a resin material and is connected to the gap filler on at least one of the axial end faces of the iron core, the holding force against the centrifugal force generated when the rotor rotates is strong. Become.

Further, in the method for manufacturing a permanent magnet type rotating electric machine, when filling the space portion with the space filling material, at least one end surface of both axial end surfaces of the iron core is covered with the space filling material. Since the filling process is provided, it is possible to obtain a permanent magnet type rotating electric machine with a strong holding force against the centrifugal force generated when the rotor rotates, by a simple manufacturing method.

Embodiment 2.
Next, Embodiment 2 will be described. In the first embodiment described above, since the inner core 1 and the outer core 2 are separated from each other, the thin magnetic steel sheets to be used are made of different materials, that is, directional and non-oriented materials, depending on the magnetic circuit. may
The eyebrow-shaped outer core 2 shown in the first embodiment uses a directional thin electromagnetic steel sheet having a directionality in the longitudinal direction, that is, the surface direction of the outer core 2 and in a direction perpendicular to the magnetic pole center line. The iron core 1 is made of a non-oriented thin electromagnetic steel plate, and the outer iron core 2 and the inner iron core 1 are combined to form the rotor 50, thereby preventing the magnetic characteristics of the rotor 50 from becoming non-uniform in the radial direction. , it is possible to further improve the magnetic properties.

As described above, according to the present embodiment, the outer core is a laminate of electromagnetic steel sheets having a directivity in the plane direction of the outer core and in the direction perpendicular to the magnetic pole center line. can be improved.

Embodiment 3.
FIG. 13 is a diagram showing a combined body according to Embodiment 3, and corresponds to the cross section taken along line AA in FIG. 2A.
The combined body 40 of the present embodiment has a hollow portion 40G inside, and the hollow portion 40G is surrounded by an end portion 40E provided on the axial end and a side portion 40F provided on the side surface.
In the present embodiment, the first permanent magnet 3A and the second permanent magnet 3B are integrated into the combined body 40 having the hollow portion 40G. It can be inserted and placed through the portion 40G to improve the magnetic properties of the pole.

As described above, according to the present embodiment, the combined body has a hollow portion inside, and end portions are provided on both axial end faces of the combined body. The permanent magnet is an integral permanent magnet penetrating the hollow portion of the combined body, and the installation portion is provided facing the combined body on a line orthogonal to the magnetic pole center line of the iron core. Therefore, the magnetic properties of the magnetic pole are improved.

While this application describes various exemplary embodiments and examples, various features, aspects, and functions described in one or more embodiments may not apply to particular embodiments. can be applied to the embodiments singly or in various combinations.
Therefore, countless modifications not illustrated are envisioned within the scope of the technology disclosed in the present application. For example, modification, addition or omission of at least one component, extraction of at least one component, and combination with components of other embodiments shall be included.

Reference Signs List 1 inner iron core 1S installation portion 1B step groove 1C engaging portion 2 outer iron core 3A first permanent magnet 3B second permanent magnet 4 combined body 5 gap filler 10 core 40 combined body 40G Hollow part 50 Rotor 60 Stator 100 Permanent magnet rotating electric machine 500 Spacing part 500A Straight spacing part 500B Curved spacing part W Spacing.

Claims (14)

A permanent-magnet rotating electrical machine comprising a rotor having a permanent magnet installed in an installation portion, and a stator, wherein an iron core of the rotor is composed of an inner iron core and an outer iron core, and the inner iron core and the The outer iron core is coupled by a coupler arranged at the magnetic pole center, the permanent magnets are installed between the inner iron core and the outer iron core with the coupler sandwiched therebetween, and the permanent magnets are arranged on the opposite side of the coupler. A spacing portion having a magnetic spacing is formed from a circumferential end portion toward the outer peripheral direction of the iron core, and a resin spacing filler is provided in the spacing portion,
The spacing portion has a curved spacing portion having a radius of curvature at a portion connected to the outer peripheral portion of the iron core,
The spacing portion is connected to the curved spacing portion via a straight spacing portion extending linearly from the combined body ,
The combined body has a hollow inside, end portions are provided on both axial end surfaces of the combined body,
The permanent magnet is an integral permanent magnet penetrating the hollow portion of the combined body, and the installation portion is a permanent magnet provided facing the combined body on a line orthogonal to the magnetic pole center line of the iron core. type rotary electric machine. 2. The permanent magnet type electric rotating machine according to claim 1, wherein the combined body and the circumferential end portion of the permanent magnet on the combined body side are in surface contact with each other. The combined body has trapezoidal projections on its upper and lower parts and has the same axial length as the core, and the projections are provided on the outer core and the inner core. 3. The permanent magnet type electric rotating machine according to claim 1, wherein the permanent magnet type rotary electric machine is engaged with the engaging portion. 2. From claim 1, wherein the permanent magnets are composed of a first permanent magnet and a second permanent magnet, and the installation portion is provided on a line orthogonal to the magnetic pole center line of the iron core so as to face the combined body. The permanent magnet type rotary electric machine according to claim 3 . The permanent magnet type electric rotating machine according to any one of claims 1 to 4, wherein the installation portion is a step groove provided in each of the inner core and the outer core that face each other. The permanent magnet type electric rotating machine according to any one of claims 1 to 4, wherein the installation portion is a step groove provided in the inner iron core. The permanent magnet type electric rotating machine according to any one of claims 1 to 4, wherein the installation portion is a step groove provided in the outer iron core. The permanent magnet type electric rotating machine according to any one of claims 1 to 7, wherein the interval of the straight interval portion is smaller than the thickness of the permanent magnet. The permanent magnet type according to any one of claims 1 to 8, wherein the permanent magnets are arranged in a V-shape that is symmetrical with respect to the magnetic pole center line and convex toward the center of rotation. rotating electric machine. 10. The permanent magnet according to any one of claims 1 to 9, wherein the outer core is a laminate of electromagnetic steel sheets having a directivity in a plane direction of the outer core and in a direction orthogonal to the magnetic pole center line. type rotary electric machine. 11. The permanent magnet type electric rotating machine according to any one of claims 1 to 10, wherein the gap filler is integrally connected so as to cover at least one of axial end faces of the iron core. 12. The permanent magnet type electric rotating machine according to any one of claims 1 to 11, wherein the combined body is made of either a resin material or a non-magnetic metal material. 12. The permanent magnet type electric rotating machine according to claim 11, wherein said combined body is made of a resin material, and is connected to said gap filler on at least one of axial end faces of said iron core. 14. The manufacturing method for manufacturing a permanent magnet type rotating electric machine according to claim 11, wherein at least one of the axial end faces of the iron core is filled with the space filler in the space. A method of manufacturing a permanent magnet type rotating electrical machine, comprising a filling step of filling the end face with the gap filling material so as to cover the end face.

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