JPH10126997A - Insulator for stator core of electric rotating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the size of an electric rotating machine by enhancing the space factor of winding in slot thereby reducing the size of the core. SOLUTION: The insulator 10 for an annular stator core of an electric rotating machine comprising coupling cores 1 split into sectors by making cuts extending radially while leaving a microjoint 3 on the outer circumferential side for each of a plurality of slots 2 made in the circumferential direction at constant intervals and windings 6 wound around the pole piece parts 5 between respective U-shaped slots 2 while being developed flatly has U-shape for electrically insulating the wall face of slots on the opposite sides of the pole piece part 5, respectively, by being fitted to the outside of the pole piece part 5 while straddling the pole piece part 5 from one side thereof. A constricted forward end piece part 11 being bent radially inward of the slot 2 is provided at the forward end of an outer piece part 10a covering the radially outside wall face 2a of the slot 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator for a stator core of a rotating electric machine such as an induction motor used for various industrial equipment, and more particularly to an insulator for an annular rotating electric machine constituted by a split type connecting core. The present invention relates to an insulator for a core.

[0002]

2. Description of the Related Art In recent years, in order to increase the size and performance of rotating electric machines such as induction motors and the like, it is necessary to increase the density of stator windings. A structure in which a high-density winding is obtained by dividing a core core and winding the windings in a straight line around the magnetic pole pieces between the slots of the stator core is often used. .

FIGS. 24 to 27 show a conventional example of a stator using a split connecting core. The split connecting core 1
In each of the plurality of slots 2 provided for each of the plurality of magnetic pole pieces 5 at equal intervals in the circumferential direction (in the closed state of the annular shape), the thin joint portion 3 is left on the outer peripheral side in the radial direction. The winding 6 is divided into a substantially fan shape by the notch 4 extending and is wound around the outer periphery of the pole piece 5 through two U-shaped slots 2 adjacent to each other in a back-to-back state in a developed state such as a plane. And the ends are connected by welding or the like to form an annular stator core for a rotating electric machine.

[0004] An insulator 7 such as a bobbin made of electrically insulating plastic is provided in the slot 2 for electrical insulation between the iron core 1 and the winding 6, and the winding 6 is wound around the outside of the insulator 7.

The insulator 7 is fitted over the outer periphery of the pole piece 5 so as to straddle the pole piece 5 from one end of the pole piece 5, and two insulators are provided on both sides of the pole piece 5 in back-to-back relation. The slot 2 has a U-shape that electrically insulates the wall surfaces. Insulator 7 is slot 2
When the iron core 1 is closed in an annular shape, the outer piece 7a that covers the radially outer wall 2a of the outer core 7a engages with the split surface 1a of the iron core 1 (between the core back contact surfaces). It is shorter than the dimension of the wall surface 2a by the dimension x so as not to be inserted.

[0006]

As described above, in the conventional insulator 7, the outer piece portion 7a is shorter than the dimension of the wall surface 2a by the dimension x, so that the side of the dividing surface 1a of the wall surface 2a is not insulated. , And core 1 and winding 6
As shown in the figure, it is necessary to reduce the number of turns of the windings 6 near the division surface 1a to secure an insulation distance L between them, and a large waste space S is generated in the slot 2. .

In the conventional insulator 7 as described above, since the adjacent windings 6 are not insulated from one another, the number of windings has to be reduced from the necessity of ensuring a sufficient inter-phase distance.

For the above reasons, the effective sectional area of the slot 2 cannot be fully utilized, and as a result, the product width of the iron core 1 needs to be increased, which causes a problem that the miniaturization design of the rotating electric machine is hindered. become.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to improve the space factor of a winding in a slot by properly performing insulation between an iron core and a winding. By reducing the size of the iron core, it is possible to reduce the size of the rotating electric machine, and also properly perform interphase insulation between adjacent windings, thereby also improving the space factor of the windings in the slot, It is an object of the present invention to obtain an insulator for a stator core for a rotating electric machine, which can further reduce the size of the rotating electric machine by downsizing.

[0010]

In order to achieve the above-mentioned object, an insulator for a stator core for a rotating electric machine according to the present invention is provided for each of a plurality of pole pieces at equal intervals in a circumferential direction. Each slot is divided into a substantially fan shape by a cut extending in the radial direction while leaving a thin joint portion on the outer peripheral side, and a U-shaped slot that exists in a back-to-back state on both sides of each magnetic pole piece in an expanded state An insulator for a stator core for an annular rotating electric machine with a split-type connecting iron core wound around the pole piece portion through a winding, wherein one end of the pole piece portion is connected to the pole piece portion. To form a U-shape that fits over the outer periphery of the pole piece so as to electrically insulate and cover the walls of the slot on both sides of the pole piece, and covers the radially outer wall of the slot. Outer piece The tip, but has a tip piece waist folds than the tip radially inside the slots.

In the insulator for a stator core for a rotating electric machine according to the present invention, a constricted tip piece bent radially inward of the slot is provided at the tip of the outer piece covering the radially outer wall surface of the slot. By having
Even if the outer piece extends to the boundary between the slot and the split surface of the iron core, it does not bite between the split surfaces, and the narrowed tip piece reduces the insulation distance between the iron core and the winding. Thus, the space factor of the winding in the slot can be improved.

An insulator for a stator core for a rotating electric machine according to the next invention is the insulator according to the invention described above, wherein the constricted front end portion has a front end edge in a radial position of an outer side portion of the insulator in a free state. Or a shape located at a radially outer position than that.

In the insulator for a stator core for a rotating electric machine according to the present invention, in a free state, the leading edge of the constricted tip piece is equal to the radial position of the outer piece of the insulator, or is radially outward from the outer edge. By being located at the position, interference between the winding and the constricted tip piece during winding by the winding nozzle is avoided.

An insulator for a stator core for a rotating electric machine according to the next invention is characterized in that a thin joint portion is provided on an outer peripheral side for each slot provided for each of a plurality of magnetic pole pieces at equal intervals in a circumferential direction. The coil is divided into substantially fan-shaped by a cut extending in the radial direction while leaving, and a winding is formed around the pole piece by passing a coil into a U-shaped slot existing back to back on both sides of each pole piece in an expanded state. In an insulator for a stator core for an annular rotating electric machine having a split type connection core wound around a pole piece, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end thereof. The pole piece has a U-shape that electrically insulates the walls of the slots on both sides of the pole piece, and the tip of the outer piece covering the radially outer wall of the slot has Diameter Thin insulating sheet piece that is bent in direction inwardly is one that is installed.

In the insulator for a stator core for a rotating electric machine according to the present invention, a thin insulating sheet piece which is bent inward in the radial direction of the slot is attached to the tip of an outer piece covering the radially outer wall surface of the slot. Even if the outer piece extends to the boundary between the slot and the split surface of the iron core, the outer piece does not bite between the split surfaces, and the thin insulating sheet piece forms a gap between the iron core and the winding. The insulation distance can be secured, and the space factor of the winding in the slot can be improved.

An insulator for a stator core for a rotating electric machine according to the next invention is characterized in that a thin joint portion is provided on the outer peripheral side for each slot provided for each of a plurality of pole pieces at equal intervals in the circumferential direction. The coil is divided into substantially fan-shaped by a cut extending in the radial direction while leaving, and a winding is formed around the pole piece by passing a coil into a U-shaped slot existing back to back on both sides of each pole piece in an expanded state. In an insulator for a stator core for an annular rotating electric machine having a split type connection core wound around a pole piece, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end thereof. And forming a U-shape to electrically insulate and coat the wall surfaces of the slots on both sides of the pole piece portion, from the tip of the outer piece portion covering the radially outer wall surface of the slot radially outward of the slot. Bending The extension piece portion is provided, and the extension piece portion is accommodated in a step portion formed in advance on a division surface of the division type connection core by closing the division type connection core in an annular shape, and is provided between the division surfaces. It is sandwiched between.

In the insulator for a stator core for a rotating electric machine according to the present invention, an extension piece extending radially outward of the slot from a tip of an outer piece covering a radially outer wall surface of the slot, It is housed in a step formed in advance on the division surface of the divisional connecting core and is sandwiched between the division surfaces, so that there is no problem of biting between the division surfaces of the insulator, and between the core and the winding. Can be secured, and the space factor of the winding in the slot can be improved.

An insulator for a stator core for a rotating electric machine according to the next invention is provided with a thin joint on the outer peripheral side for each slot provided for each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction. The coil is divided into substantially fan-shaped by a cut extending in the radial direction while leaving, and a winding is formed around the pole piece by passing a coil into a U-shaped slot existing back to back on both sides of each pole piece in an expanded state. In an insulator for a stator core for an annular rotating electric machine having a split type connection core wound around a pole piece, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end thereof. The pole piece has a U-shape that electrically insulates the walls of the slots on both sides of the pole piece, and the outer piece that covers the radially outer wall of one slot has a protruding piece. On the other side The outer piece portion that covers the radially outer wall of Tsu bets in which the projecting piece receiving stepped portion for receiving the protruding parts of another insulator disposed adjacent are provided.

In the insulator for a stator core for a rotating electric machine according to the present invention, the protruding piece and the protruding piece receiving step are overlap-engaged between adjacent insulators by closing the iron core in an annular shape. Even if one part extends to the boundary between the slot and the split surface of the iron core,
The outer piece does not bite between the divided surfaces, and the overlapping engagement can ensure an insulation distance between the iron core and the winding, thereby improving the space factor of the winding in the slot.

An insulator for a stator core for a rotating electric machine according to the next invention is provided with a thin joint on the outer peripheral side for each slot provided for each of a plurality of pole pieces at equal intervals in the circumferential direction. It is divided into substantially fan-shaped by a notch extending in the radial direction while leaving, and in the unfolded state, the winding is wound around the pole piece by passing a winding through a substantially U-shaped slot which is present on both sides of each pole piece back to back. In an insulator for a stator core for an annular rotating electric machine with a split connecting core wound around a pole piece, the pole piece is fitted around the pole piece so as to straddle the pole piece from one end of the pole piece. A U-shaped insulator body for electrically insulatingly coating the wall surfaces of the slots on both sides of the pole piece portion, and an outer body for covering the radially outer wall surface of the insulator body with the insulator body. The one end is pinched between the tip of the portion and the iron core, and the split connecting iron core is closed in an annular shape to extend inward in the radial direction of the slot, and the winding of the adjacent magnetic pole piece is wound. And an interphase insulating sheet existing between them.

In the insulator for a stator core for a rotating electrical machine according to the present invention, one end is locked between the tip of the outer piece of the insulator main body and the core, and the divided connecting core is closed in an annular shape. By providing the interphase insulating sheet extending inward in the radial direction of the slot and present between the windings of the adjacent magnetic pole pieces, the outer piece of the insulator main body is formed at the boundary between the slot and the split surface of the iron core. Even if it extends up to, this does not bite between the divided surfaces, the insulation distance between the iron core and the winding can be ensured by the interphase insulating sheet, and the interphase insulation of the winding is also performed, and the winding in the slot Space factor can be improved.

An insulator for a stator core for a rotating electric machine according to the next invention is the insulator according to the invention described above, wherein the interphase insulating sheet is V
The insulator is locked by being sandwiched between the tip of the outer piece of the insulator body attached to the adjacent magnetic pole pieces and the iron core.

In the insulator for a stator core for a rotating electric machine according to the present invention, since the interphase insulating sheet has a V-shape in a deployed state and is locked at both ends, the split connecting core is closed in an annular shape. In this case, it is surely present between the windings of the adjacent pole piece portions.

In the insulator for a stator core for a rotating electric machine according to the next invention, a thin joint portion is provided on the outer peripheral side for each slot provided for each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction. It is divided into substantially fan-shaped by a notch extending in the radial direction while leaving, and in the unfolded state, the winding is wound around the pole piece by passing a winding through a substantially U-shaped slot which is present on both sides of each pole piece back to back. In an insulator for a stator core for an annular rotating electric machine with a split connecting core wound around a pole piece, the pole piece is fitted around the pole piece so as to straddle the pole piece from one end of the pole piece. A U-shaped insulator body for electrically insulatingly coating the wall surfaces of the slots on both sides of the pole piece portion, and an outer body for covering the radially outer wall surface of the insulator body with the insulator body. One end is interposed between the tip of the portion and the iron core, and the other end is interposed between the tip of the inner piece and the core where the insulator body covers the radially inner wall surface of the slot. And an inter-phase insulating sheet locked by being sandwiched between them.

In the insulator for a stator core for a rotating electric machine according to the present invention, an interphase insulating sheet is provided between the windings of adjacent magnetic pole pieces with both ends locked between the insulator body and the iron core. By doing so, even if the outer piece of the insulator body extends to the boundary between the slot and the split surface of the iron core, this does not bite between the split surfaces, and the core and the winding are formed by the interphase insulating sheet. In addition, the insulation distance between the windings can be ensured, and the phases of the windings are inter-insulated, so that the space factor of the windings in the slots can be improved.

An insulator for a stator core for a rotating electrical machine according to the next invention is provided with a thin joint on the outer peripheral side for each slot provided for each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction. It is divided into substantially fan-shaped by a notch extending in the radial direction while leaving, and in the unfolded state, the winding is wound around the pole piece by passing a winding through a substantially U-shaped slot which is present on both sides of each pole piece back to back. In an insulator for a stator core for an annular rotating electric machine with a split connecting core wound around a pole piece, the pole piece is fitted around the pole piece so as to straddle the pole piece from one end of the pole piece. The U-shape for electrically insulating and coating the wall surfaces of the slots on both sides of the pole piece portion is provided at each end of the outer piece portions on both sides for covering the radially outer wall surfaces of the slots on both sides. Between Edge strips are arranged to be bent radially inward of the slot in which the tip of the interphase insulating piece in each other as the adjacent pole pieces are linked to each other disconnect the deployed state.

In the insulator for a stator core for a rotating electric machine according to the present invention, the interphase insulating piece is connected to the tip of the outer piece so as to be bent inward in the radial direction of the slot. Even if it extends to the boundary between the iron core and the split surface, it does not bite between the split surfaces, ensuring an insulation distance between the iron core and the winding. In this state, the interphase insulating pieces are bent inward in the radial direction of the slot, and are present between the windings of the adjacent magnetic pole piece portions. Space factor can be improved.

In the deployed state, the inter-phase insulating pieces extend on the same straight line of the outer piece, and the tips of adjacent inter-phase insulating pieces are detachably connected to each other. Does not interfere with the winding operation, and when the split connecting core is closed in an annular shape, it is surely present between the windings of adjacent pole pieces. When the split-type connecting core is closed in an annular shape, the inter-phase insulating piece is bent inward in the radial direction of the slot, so that the inter-phase insulating piece of the adjacent magnetic pole piece portion is formed by the force acting on the connecting portion. May be cut off.

An insulator for a stator core for a rotating electric machine according to the next invention is characterized in that, in the insulator according to the invention described above, the interphase insulating piece is thinner than the outer piece.

In the insulator for a stator core for a rotating electric machine according to the present invention, since the interphase insulating piece is thinner than the outer piece, the interphase insulating piece is formed into a slot when the divided connecting core is closed in an annular shape. Bending inward in the radial direction makes it smooth without applying a large load to the outer piece,
And it will be performed reliably.

An insulator for a stator core for a rotating electric machine according to the next invention has a thin joint on the outer peripheral side for each slot provided for each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction. It is divided into substantially fan-shaped by a notch extending in the radial direction while leaving, and in the unfolded state, the winding is wound around the pole piece by passing a winding through a substantially U-shaped slot which is present on both sides of each pole piece back to back. In an insulator for a stator core for an annular rotating electric machine with a split connecting core wound around a pole piece, the pole piece is fitted around the pole piece so as to straddle the pole piece from one end of the pole piece. The pole piece portion has a U-shape that electrically covers the wall surfaces of the slots on both sides of the pole piece portion, and an interphase insulating piece is provided at the tip of the outer piece portion that covers the radially outer wall surface of one slot. Slot radial direction In which it is provided to be bent to the side.

In the insulator for a stator core for a rotating electric machine according to the present invention, since the interphase insulating piece is connected to the tip of the outer piece so as to be bent radially inward of the slot, the outer piece is connected to the slot. Even if it extends to the boundary between the iron core and the split surface, it does not bite between the split surfaces, ensuring an insulation distance between the iron core and the winding. In this state, the interphase insulating pieces are bent inward in the radial direction of the slot, and are present between the windings of the adjacent magnetic pole piece portions. Space factor can be improved.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an insulator for a stator core for a rotating electric machine according to the present invention will be described in detail below with reference to the accompanying drawings. In the embodiments of the present invention described below, portions having the same configurations as those of the above-described conventional example are denoted by the same reference numerals as those of the above-described conventional example, and description thereof will be omitted.

(Embodiment 1) FIGS. 1 to 4 show Embodiment 1 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator.

The insulator 10 is fitted around the outer periphery of the pole piece 5 so as to straddle the pole piece 5 from one end of the pole piece 5 as in the prior art. Each of the pole pieces 5 is mounted on the iron core 1 in a U-shape that electrically insulates the wall surfaces of the slots 2 on both sides.

The insulator 10 covers the radially outer wall surface (wall surface on the core back contact surface side) 2a of the slot 2 on both sides of one magnetic pole piece portion 5.
The outer piece 10a is provided at both ends with a narrowed tip piece 11 bent radially inward of the slot 2. The insulator 10 is integrally formed of a synthetic resin having high electrical insulation and elasticity such as liquid crystal polyester.

The constricted front end portion 11 provided on each outer side portion 10a is connected to the front end of the outer side portion 10a by a thin hinge 12 which is easily bent inward in the radial direction of the slot 2; In the free state shown in FIG. 2A (the unfolded state of the iron core 1), the outer piece 10a is bent radially inward of the slot 2 at an inclination angle θ, and the insulator 10 is When the iron core 1 is closed in an annular shape as shown in FIG. 3, the thin hinge 12 is bent radially inward of the slot 2 as a bending line as shown in FIG. Things overlap back to back.

Here, the thin hinge 12 having such a shape as to be easily bent radially inward of the slot 2 is provided on the inner side surface of the slot 2 bent radially inward, as shown in FIG. This is a thin hinge formed by a semicircular groove.

When the winding nozzle N is wound inside the insulator 10 mounted on the iron core 1 in the unfolded state, as shown in FIG. Is pushed outward by the tension of the winding wire 6 drawn by the winding nozzle N, and is elastically deformed so as to be able to be restored using the thin hinge 12 as a fulcrum. As a result, the constricted tip piece 11 does not hinder the winding process, and normal winding installation is performed.

FIG. 3 shows a state in which the iron core 1 on which the winding has been completed is bent in an annular shape and closed. Neck part 11
Is bent inward in the radial direction of the slot 2 at an angle θ in advance, so that when the iron core 1 is bent in an annular shape, the constricted tip piece 11 does not bite between the divided surfaces 1a, but must be adjacent to each other. 10, the windings 6 are bent radially inward of the slots 2 along the windings 6 so as to surround the windings 6.

As a result, the outer piece 10a is
And extends to the boundary between the iron core 1 and the dividing surface 1a,
The outer piece 10a does not bite between the divided surfaces 1a, that is, between the core back contact surfaces, and
1 serves as a barrier that secures an insulation distance L between the iron core 1 and the winding 6, increases the number of turns of the winding 6 in each slot 2, and increases the space factor of the winding 6 in each slot 2. And the iron core 1 can be reduced in size, and the rotating electrical machine can be reduced in size.

(Embodiment 2) FIGS. 5 and 6 show Embodiment 2 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. In FIGS. 5 and 6, portions corresponding to FIGS. 1 and 3 are shown in FIGS.
The same reference numerals as in FIG. 3 denote the same parts, and a description thereof will be omitted.

In this embodiment, the constricted tip piece 11 provided on each outer piece 10a is provided with the outer piece 10a.
After being raised one step further to the outside in the radial direction of the slot 2, in the free state (deployed state of the iron core 1), in the free state (in the unfolded state of the iron core 1), it is located radially inward of the slot 2 with respect to the outer piece 10 a. It is bent at an inclination angle θ. As a result, in the free state, the distal end edge of the constricted distal end piece 11 is equal to the radial position of the outer piece 10a of the insulator 10, or is located radially outward therefrom.

Accordingly, when the wound nozzle is wound inside the insulator 10 mounted on the iron core 1 in the deployed state, the constricted tip piece 11 and the winding 6 routed by the winding nozzle interfere. Therefore, normal winding installation can be performed accurately irrespective of the presence of the constricted tip piece 11.

The split surface 1a of the iron core 1 in which the insulator is used has a stepped portion 1 at the boundary with the slot 2.
b is provided, and the step 11a of the constricted tip piece 11 is accommodated in the step 1b.

In this embodiment, similarly to the first embodiment, when the iron core 1 is closed in an annular shape in a state where the insulator 10 is mounted on the iron core 1, the constricted tip piece portion 11 becomes as shown in FIG. Slot 2 as shown in
Bends radially inward of the adjacent insulator 1
0's overlap each other.

As described above, since the constricted tip piece 11 is bent in advance in the radial direction of the slot 2 at an angle θ,
As shown in FIG. 6, when the iron core 1 is bent in an annular shape, the constricted tip pieces 11 are overlapped by the adjacent insulators 10 without being caught between the divided surfaces 1a. Is bent along the winding 6 inward in the radial direction of the winding, so as to surround the winding 6.

Thus, even in this embodiment, even if the outer piece 10a extends to the boundary between the slot 2 and the split face 1a of the iron core 1, the outer piece 10a can be caught between the split faces 1a. In addition, the constricted tip piece 11 serves as a barrier for securing the insulation distance L between the iron core 1 and the winding 6, thereby improving the space factor of the winding 6 in the slot 2. The downsizing of the iron core 1 enables the downsizing of the rotating electric machine.

When the distal end edge of the constricted distal end portion 11 is free, the outer edge portion 10a of the insulator 10 is
Positioning at a position equal to or radially outside of the radial direction of the above-mentioned portion is not limited to the shape in which the stepped portion 11a is provided on the necked tip piece 11, and the necked tip piece 11 may be formed in another appropriate shape such as an arc shape. It is also possible by setting a suitable shape, and in this case, the same effect as that in the second embodiment can be obtained.

(Embodiment 3) FIGS. 7 and 8 show Embodiment 3 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. 7 and FIG. 8 correspond to FIG. 1 and FIG.
The same reference numerals as in FIG. 3 denote the same parts, and a description thereof will be omitted.

In this embodiment, a thin insulating sheet piece 13 that is bent inward in the radial direction of the slot 2 is welded to the tip of each of the outer pieces 10a on both sides that cover the radial outer wall surface 2a of the slot 2. I have.

The thin insulating sheet piece 13 is made of a polyester film or the like.
As shown in (b), the slot 2 is curved radially inward of the slot 2 with an R shape.

The split surface 1a of the iron core 1 in which the insulator is used has a stepped portion 1 at the boundary with the slot 2.
c is provided, and the tip of the outer piece 10a including the welded portion of the thin insulating sheet piece 13 is accommodated in the step portion 1c.

In the third embodiment, the thin insulating sheet piece 1 separate from the insulator 10 is used as the constricted tip piece 11.
3 makes it possible to obtain a thinner tip portion and resilience which are difficult to obtain by resin molding. As in the case of the first embodiment, the insulator 10 mounted on the iron core 1 in the expanded state is used. When winding the inside of the slot by the winding nozzle, the thin insulating sheet piece 13 is pushed by the tension of the winding 6 drawn around by the winding nozzle and can be restored even if it travels radially inside the slot 2. Due to the elastic deformation, the winding process is not hindered, and the normal winding installation is performed.

The thin insulating sheet piece 13 is inserted into the slot 2 in advance.
8 is previously bent at the curvature R inward in the radial direction of FIG.
As shown in the figure, when the iron core 1 is bent in an annular shape, the adjacent insulators 10 overlap each other without biting between the divided surfaces 1a, and the windings 6 are formed radially inward of the slots 2. Along the winding 6.

As a result, the outer piece 10a is
The outer piece 10a does not bite between the divided surfaces 1a, and the thin insulating sheet piece 13 is formed between the iron core 1 and the winding 6 because the outer piece 10a does not extend to the boundary between the core 1 and the divided surface 1a. It plays a role of a barrier that secures the insulation distance L between the slots, improves the space factor of the windings 6 in the slots 2, enables downsizing of the iron core 1, and achieves downsizing of the rotating electric machine. become able to.

(Embodiment 4) FIGS. 9 and 10 show Embodiment 4 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. 9 and 10, parts corresponding to those in FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3, and description thereof is omitted.

In this embodiment, the insulator 14 is provided with an extension piece 14 that extends radially outward of the slot 2 from the tip of each of the outer pieces 10a on both sides that cover the radial outer wall surface 2a of the slot 2. 10 and integrally formed. The extension piece portion 14 is received by the step portion 1d provided on the division surface 1a of the iron core 1 so as not to cause dimensional interference when the iron core 1 is closed in an annular shape.

When the iron core 1 is closed in an annular shape, the extension pieces 14 of the outer pieces 10a are formed between adjacent insulators 10 as shown in FIG. The projections and depressions 15 are formed between the divided surfaces 1a, and the projections and depressions engage with each other on the overlapped surface.

In this embodiment, even if the outer piece 10a extends to the boundary between the slot 2 and the split surface 1a of the iron core 1, it does not bite between the split surfaces 1a, and Since the insulation distance L between the iron core 1 and the winding 6 is ensured by the part 14, the space factor of the winding 6 in the slot 2 is improved and the iron core 1 is mounted as in the above-described embodiment. The size can be reduced, and the size of the rotating electric machine can be reduced.

(Fifth Embodiment) FIGS. 11 and 12 show a fifth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. In addition,
11 and 12, parts corresponding to those in FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3, and description thereof is omitted.

In this embodiment, a projecting piece 17 is provided on the outer piece 10a that covers the radially outer wall surface 2a of the slot 2 on one side, and the outer piece 10a is provided on the outer side of the slot 2 on the other side. The outer piece 10a covering the wall surface 2a is provided with a protruding piece receiving step 18 for receiving the protruding piece 17 of another insulator 10 disposed adjacent to the outer piece 10a.

In this insulator, the iron core 1 corresponds to FIG.
As shown in FIG. 2, when closed in an annular shape, the protruding piece 17 and the protruding piece receiving step 18 are overlap-engaged between the adjacent insulators 10.

In this embodiment, even if the outer piece 10a extends to the boundary between the slot 2 and the dividing surface 1a of the iron core 1, it does not bite between the dividing surfaces 1a, and The overlapping distance between the portion 17 and the projecting piece receiving step 18 ensures the insulation distance L between the iron core 1 and the winding 6, so that the winding in the slot 2 is performed as in the above-described embodiment. It is possible to reduce the size of the iron core 1 by improving the space factor of the wire 6, and to reduce the size of the rotating electric machine.

(Embodiment 6) FIGS. 13 and 14 show Embodiment 6 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. In addition,
Also in FIGS. 13 and 14, portions corresponding to FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3, and description thereof is omitted.

In this embodiment, a step is provided at each end of the outer piece portions 10 a on both sides of the insulator (insulator body) 10. A gap 19 into which the leading end 21 of the interphase insulating sheet 20 is inserted is defined.

The interphase insulating sheet 20 is made of a synthetic resin sheet having high insulating elasticity, and has a V-shape in a free state, in other words, in an expanded state of the iron core 1 as shown in FIG. The tip portions 21 on both sides are sandwiched between the tip of the outer piece portion 10a of the insulator 10 attached to the adjacent magnetic pole piece portion 5 and the iron core 1, that is, a pair of gaps 19 sandwiching the iron core split portion. It is inserted and attached to the iron core 1.

The leading end 21 of the interphase insulating sheet 20 has a gap 1
9 when inserted into the core division surface 1a.

After completion of the winding, the interphase insulating paper 20 is attached to the iron core 1 in the developed state shown in FIG. 13 as described above so that the winding operation can be performed without interference. As the iron core 1 is bent into an annular shape, the V-shaped pinching angle is reduced, and the iron core 1 reliably extends radially inward of the slot 2 so as to be present between the windings 6 of the adjacent pole piece 5. become.

As a result, the outer piece 10a of the insulator 10 does not have to extend to the boundary between the slot 2 and the split surface 1a of the iron core 1, so that the outer piece 10a does not bite between the split surfaces 1a. Iron core 1 by 20
The insulation distance between the coil and the winding 6 can be ensured, and the phase insulation of the winding 6 is performed, so that the space factor of the winding in the slot can be improved.

(Embodiment 7) FIGS. 15 and 16 show Embodiment 7 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. In addition,
In FIGS. 15 and 16, parts corresponding to those in FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3, and description thereof is omitted.

In this embodiment, one bent tip 23 of the interphase insulating sheet 22 is inserted into the tip of one outer piece 10 of the insulator (insulator body) 10 as in the sixth embodiment. Gap 19
And a step is provided at the tip of one of the inner side portions 10b of the insulator 10. When the insulator 10 is attached to the iron core 1, a radially inner wall surface of the slot 2 (wall surface on the tooth tip side) 2b A gap 24 into which the other bent front end 23 of the interphase insulating sheet 22 is inserted is defined.

The interphase insulating sheet 22 has a U-shape having bent front end portions 23 at both ends. After the completion of the winding, the folded front ends at both ends in the developed state shown in FIG. Part 22
Are inserted into the gaps 19 and 24 so that one of the bent front ends 22 is positioned between the front end of the outer piece 10 a and the iron core 1.
The other bent tip 22 is sandwiched between the tip of the inner piece 2b and the iron core 1 and is locked by the iron core 1 so that the slot 2
As shown in FIG. 16, the iron core 1 is closed in an annular shape, so that the iron core 1 exists between the windings 6 of the adjacent pole piece 5.

The bent front end 2 of the interphase insulating sheet 22
Reference numeral 3 denotes a dimension that does not protrude into the core division surface 1a and the slot opening when stored in the gaps 19 and 24, respectively.

As a result, the outer piece 10a of the insulator 10 does not have to extend to the boundary between the slot 2 and the split surface 1a of the iron core 1, so that the outer piece 10a does not bite between the split surfaces 1a. Iron core 1 by 22
The insulation distance between the coil and the winding 6 can be ensured, and the phase insulation of the winding 6 is performed, so that the space factor of the winding in the slot can be improved.

(Eighth Embodiment) FIGS. 17 and 18 show an eighth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. In addition,
17 and 18, parts corresponding to those in FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3, and description thereof is omitted.

In this embodiment, a thin hinge 26 attaches an inter-phase insulating piece 25 to each of the distal ends of the outer pieces 10a on both sides of the slot 2 in the radial direction of the slot 2 so as to cover the radial outer walls 2a of the slots 2 on both sides. 17, the leading ends of the interphase insulating pieces 25 are connected to each other by detachable thin hinges 27 between the adjacent pole piece parts 5 in the unfolded state, as shown in FIG. The two connected inter-phase insulating pieces 25 are V-shaped.

The thin hinge 26 is constituted by a V-shaped groove provided on the inner surface of the slot 2 in the radial direction.
5, the thin hinge 27 is constituted by a V-shaped groove provided on the radially outer surface of the slot 2, and the V-shaped sandwiching angle between the two interphase insulating pieces 25 connected to each other. Is narrowed by tensile fracture.

The insulator 10 used in this embodiment is entirely formed of a synthetic resin having high insulating rigidity.

In this embodiment, as shown in FIG. 17, when the iron core 1 is deployed so that the adjacent magnetic pole piece portions 5 take an angle of 90 degrees with each other, the interphase insulating piece 2
5 extends in a straight line of the outer piece 10a. Thereby, the winding work on the slot 2 is performed without interfering with the inter-phase insulating piece 25.

In the unfolded state, the interphase insulating pieces extend on the same straight line of the outer piece, and the tips of adjacent interphase insulating pieces are detachably connected to each other. Therefore, it does not hinder the winding operation.
In addition, in one iron core 1, the insulator member is handled as one component, so that component management, assemblability, and the like are improved.

As shown in FIG. 18, when the iron core 1 is closed in an annular shape, the interphase insulating piece 25 is bent inward with the thin hinge 26 as a folding line while centering on the thin hinge 27. The V-shaped sandwiching angle between the two connected interphase insulating pieces 25 is reduced and the V-shaped sandwiching angle is present between the windings 6 of the adjacent pole piece 5.

Thus, even if the outer piece 10a of the insulator 10 extends to the boundary between the slot 2 and the split surface 1a of the iron core 1, it does not bite between the split surfaces 1a, and 25 and iron core 1 and winding 6
In addition, the insulation distance between them can be ensured, and the phase between the windings 6 is also insulated, so that the space factor of the windings in the slots can be improved.

Until the core 1 is closed in an annular shape, the two adjacent interphase insulating pieces 25 exist in the divided space of the slot 2 in a V-shaped connection state. Of the magnetic pole pieces 5 are reliably present between the windings 6 of the adjacent magnetic pole pieces 5, and when the iron core 1 is closed in an annular shape as shown in FIG.
5 is bent inward in the radial direction of the slot 2, and a tensile force acting on the thin hinge 27 causes the thin hinge 2.
7 is tensile-ruptured, and the interphase insulating piece 25 of the adjacent pole piece 5 is cut off. Thereby, it is avoided that bending stress continues to act on the insulator 10 including the interphase insulating piece 25, and fatigue of the insulator 10 is reduced.

(Embodiment 9) FIGS. 19 and 20 show Embodiment 9 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. In addition,
In FIGS. 19 and 20, parts corresponding to FIGS. 17 and 18 are denoted by the same reference numerals as those in FIGS. 17 and 18, and description thereof is omitted.

This embodiment is a modification of the eighth embodiment, and the inter-phase insulating piece 25 is formed thinner than the outer piece 10a.

The thin hinge 26 connecting the interphase insulating piece 25 and the outer piece 10a has a step due to a change in thickness, and is formed by a round groove provided on the inner diameter side of the iron core. The thin hinge 27 connecting the inter-phase insulating pieces 25 is formed of a V-shaped groove provided on the outer diameter side of the iron core as in the eighth embodiment.

In this embodiment, since the inter-phase insulating piece 25 is thinner than the outer piece 10a, the inter-phase insulating piece 25 moves radially inward of the slot 2 when the split-type connecting core 1 is closed in an annular shape. The bending can be performed smoothly and reliably without applying a large load to the outer piece 10a.

Also in this embodiment, the insulator 10
Even if the outer piece 10a extends to the boundary between the slot 2 and the split surface 1a of the iron core 1, it does not bite between the split surfaces 1a, and
The insulation distance between the coil and the winding 6 can be ensured, and the phase insulation of the winding 6 is performed, so that the space factor of the winding in the slot can be improved.

(Tenth Embodiment) FIGS. 21 to 23 show a tenth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator. Also in FIGS. 21 to 23, the portions corresponding to FIGS. 1 and 3 are denoted by the same reference numerals as those in FIGS. 1 and 3, and description thereof is omitted.

In this embodiment, the insulator 10
At the end of the outer piece 10a that covers the radially outer wall surface 2a of one of the slots 2, an interphase insulating piece 28 is provided by a thin hinge 29 so as to be bent radially inward of the slot 2. In this insulator 10, a thin hinge 29 entirely formed of a synthetic resin having high insulating rigidity is provided on a radially inner surface of the slot 2 in a V-shape.
The inter-phase insulating piece 28 is allowed to bend only inward in the radial direction.

When the winding is started by the winding nozzle N from the state shown in FIG. 21, the magnetic pole piece portion (teeth portion)
When winding is started from 5b or 5c, the winding interferes with the insulator 10 fitted to the left magnetic pole piece. But,
When the winding is first applied to the pole piece 5a, the insulator 1
0 does not interfere with the winding. Thereafter, as shown in FIG. 22, the interphase insulating piece 28 of the insulator 10 at the position of the core division of the pole piece 5a is bent toward the core inner diameter side, and then the magnetic pole piece 5b is wound. In addition, the interference of the winding with the insulator 10 can be eliminated.

As shown in FIG. 23, in a state where the iron core 1 is closed in an annular shape, the interphase insulating piece 28 is bent inward with the thin hinge 29 as a bending line, and each magnetic pole piece portion 5a is bent. , 5b, 5c.

Thus, even if the outer piece 10a of the insulator 10 extends to the boundary between the slot 2 and the divided surface 1a of the iron core 1, this does not bite between the divided surfaces 1a, and 28 and iron core 1 and winding 6
In addition, the insulation distance between them can be ensured, and the phase between the windings 6 is also insulated, so that the space factor of the windings in the slots can be improved.

[0095]

As will be understood from the above description, according to the insulator for a stator core for a rotating electric machine according to the present invention, the diameter of the slot is set at the tip of the outer piece covering the radially outer wall surface of the slot. Even if the outer piece extends to the boundary between the slot and the split surface of the iron core by providing the constricted tip piece that is bent inward in the direction,
This does not bite between the split surfaces, and the constricted tip piece ensures the insulation distance between the iron core and the winding,
Since the space factor of the winding in the slot can be improved by sufficiently utilizing the effective volume of the slot, the iron core can be reduced in size, and the rotating electrical machine can be reduced in size.

According to the insulator for the stator core for the rotating electric machine according to the next invention, in the free state,
Since the leading edge of the constricted tip piece is located at the radial position of the outer piece part of the slot equal to or more radially outward than the constricted tip piece, the winding and the constricted tip piece part are wound during winding by the winding nozzle. Is prevented from interfering with each other, and the winding can be properly set properly regardless of the presence of the constricted tip piece.

According to the insulator for a stator core for a rotating electric machine according to the next invention, a thin insulating sheet piece bent inward in the radial direction of the slot is provided at the tip of the outer piece covering the radially outer wall surface of the slot. By being mounted, the outer piece does not have to extend to the boundary between the slot and the split surface of the iron core, so that this does not bite between the split surfaces, and the core and the winding are formed by a thin insulating sheet piece. The insulation distance between the slots can be ensured, and the effective volume of the slots can be fully utilized to improve the space factor of the windings in the slots, so that the iron core can be downsized and the rotating electric machine can be downsized. Will be able to

According to the insulator for a stator core for a rotating electric machine according to the next invention, the extension piece that extends from the tip of the outer piece that covers the radially outer wall surface of the slot to the outside in the radial direction of the slot. Even if the outer piece extends to the boundary between the slot and the split surface of the iron core, the outer piece does not bite between the split surfaces, and the outer piece is wound around the core by the extension piece. Since the insulation distance from the wire can be ensured and the effective volume of the slot can be fully utilized to improve the space factor of the winding in the slot, it is possible to reduce the size of the iron core and reduce the size of the rotating electric machine. You can plan.

According to the insulator for a stator core for a rotating electric machine according to the next invention, the protruding piece and the protruding piece receiving step are overlap-engaged between adjacent insulators by the iron core being closed in an annular shape. However, even if the outer piece extends to the boundary between the slot and the split face of the iron core, the outer piece does not bite between the split faces, and the overlapping engagement between the outer core and the winding makes it possible. Since the insulation distance between the slots can be ensured and the effective volume of the slots can be sufficiently utilized to improve the space factor of the windings in the slots, the iron core can be reduced in size and the rotating electrical machine can be reduced in size. become able to.

According to the insulator for a stator core for a rotating electric machine according to the next invention, one end is locked between the tip of the outer piece of the insulator body and the core, and the divided connecting core is closed in an annular shape. By extending the radially inward of the slot and providing the interphase insulating sheet existing between the windings of the adjacent magnetic pole pieces, the outer piece of the insulator main body can be divided into the slot and the split surface of the iron core. It is not necessary to extend to the boundary part of the slot, so that it does not bite between the divided surfaces, and the interphase insulation sheet can secure the insulation distance between the iron core and the winding, and also performs the phase insulation of the winding, and the slot In this case, the space factor of the winding can be improved, so that the iron core can be reduced in size, and the rotating electrical machine can be reduced in size.

According to the insulator for a stator core for a rotating electric machine according to the next invention, since the interphase insulating sheet has a V-shape in a developed state and is locked at both ends, the divided connecting core is annular. Is closed between the windings of adjacent pole pieces.

According to the insulator for a stator core for a rotating electric machine according to the next invention, an interphase insulating sheet which is locked between both ends of an insulator body and an iron core and is present between windings of adjacent pole pieces. Is provided, the outer piece of the insulator body does not need to extend to the boundary between the slot and the split surface of the iron core, so that this does not bite between the split surfaces, and the core and the core are separated by the interphase insulating sheet. Since the insulation distance between the windings can be ensured and the phases of the windings are also insulated, the space factor of the windings in the slot can be improved, so that the iron core can be downsized.
The size of the rotating electric machine can be reduced.

According to the insulator for a stator core for a rotating electric machine according to the next invention, the interphase insulating piece is connected to the tip of the outer piece so as to be bent inward in the radial direction of the slot. Extends to the boundary between the slot and the split surface of the iron core, this does not bite between the split surfaces, thereby ensuring the insulation distance between the iron core and the winding, and the split-type connecting iron core is circular. In the annularly closed state, the interphase insulating pieces are bent inward in the radial direction of the slot, and are present between the windings of the adjacent pole piece portions. In this case, the space factor of the windings can be improved, so that the iron core can be reduced in size, and the rotating electrical machine can be reduced in size.

Also, in the unfolded state, the tips of the interphase insulating pieces are connected to each other so as to be detachable between adjacent magnetic pole pieces, so that the interphase insulating pieces swing and hinder the winding operation during the winding process. In one core, the insulator member is handled as one part, and the parts management, assemblability, etc. are improved, and when the split connecting core is closed in an annular shape, the adjacent magnetic pole piece It surely exists between the windings.

According to the insulator for a stator core for a rotating electric machine according to the next invention, since the interphase insulating piece is thinner than the outer piece, the interphase insulating piece is closed when the split connecting core is closed in an annular shape. Can be smoothly and reliably bent radially inward of the slot without applying a large load to the outer piece.

According to the insulator for a stator core for a rotating electric machine according to the next invention, the interphase insulating piece is connected to the tip of the outer piece so as to be bent inward in the radial direction of the slot. Extends to the boundary between the slot and the split surface of the iron core, this does not bite between the split surfaces, thereby ensuring the insulation distance between the iron core and the winding, and the split-type connecting iron core is circular. In the annularly closed state, the interphase insulating pieces are bent inward in the radial direction of the slot, and are present between the windings of the adjacent pole piece portions. In this case, the space factor of the windings can be improved, so that the iron core can be reduced in size, and the rotating electrical machine can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an insulator according to a first embodiment of the present invention and a stator core for a rotating electrical machine incorporating the insulator in a deployed state of the core.

FIG. 2A is an enlarged view of a main part of the insulator according to the first embodiment, and FIG. 2B is an enlarged view of a main part showing a relationship between the insulator, a constricted tip piece, and a winding nozzle.

FIG. 3 is a cross-sectional view showing Embodiment 1 of an insulator and a stator core for a rotating electric machine incorporating the insulator according to the present invention in a closed state of the core;

FIG. 4 is a cross-sectional view showing Embodiment 1 of an insulator according to the present invention and a stator core for a rotating electrical machine incorporating the insulator in a closed state of the core;

FIG. 5 is a cross-sectional view showing a second embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a state where the core is deployed.

FIG. 6 is a cross-sectional view showing a second embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core;

FIG. 7A is a sectional view showing an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator according to a third embodiment of the present invention in an expanded state of the core, and FIG. 7B is an enlarged view of a main part.

FIG. 8 is a sectional view showing Embodiment 3 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core;

FIG. 9 is a cross-sectional view showing an insulator according to a fourth embodiment of the present invention and a stator core for a rotating electric machine incorporating the insulator in an expanded state of the core.

FIG. 10 is a cross-sectional view showing an insulator according to a fourth embodiment of the present invention and a stator core for a rotating electrical machine incorporating the insulator in a closed state of the core;

FIG. 11 is a cross-sectional view illustrating an insulator according to a fifth embodiment of the present invention and a stator core for a rotating electrical machine incorporating the insulator in an expanded state of the core.

FIG. 12 is a cross-sectional view showing Embodiment 5 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core;

FIG. 13 is a cross-sectional view showing a sixth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a state where the core is deployed.

FIG. 14 is a cross-sectional view showing a sixth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core.

FIG. 15 is a cross-sectional view showing a seventh embodiment of an insulator according to the present invention and a stator core for a rotating electric machine in which the insulator is incorporated, in an expanded state of the core.

FIG. 16 is a cross-sectional view showing Embodiment 7 of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core.

FIG. 17 is a cross-sectional view showing an eighth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine in which the insulator is incorporated, in an expanded state of the core.

FIG. 18 is a cross-sectional view showing an eighth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core.

FIG. 19 is a cross-sectional view showing a ninth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a state where the core is deployed.

FIG. 20 is a cross-sectional view showing a ninth embodiment of an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator in a closed state of the core.

FIG. 21 is an embodiment of an insulator and a stator core for a rotating electric machine incorporating the insulator according to the present invention.
FIG. 4 is a cross-sectional view showing the state of the iron core before the winding is installed.

FIG. 22 is a perspective view showing an insulator according to a tenth embodiment of the present invention and a stator core for a rotating electric machine incorporating the insulator.
FIG. 4 is a cross-sectional view showing a state in which the core is deployed.

FIG. 23 shows an insulator according to the present invention and a stator core for a rotating electric machine incorporating the insulator according to a tenth embodiment.
FIG. 4 is a sectional view showing a closed state of the iron core.

FIG. 24 is a cross-sectional view showing a conventional insulator and a stator core for a rotating electric machine incorporating the insulator, in which the core is deployed.

FIG. 25 is a cross-sectional view showing a conventional insulator and a stator core for a rotating electric machine in which the insulator is incorporated, in a closed state of the core.

FIG. 26 is a sectional view taken along line AA shown in FIG. 25;

FIG. 27 is a perspective view showing a conventional insulator.

[Explanation of symbols]

1 split type connecting core, 2 slots, 5 pole pieces, 6
Winding, 2a radially outer wall surface of the slot, 1a iron core division surface, 10 insulator, 10a outer piece,
11 Neck tip part, 12 Thin hinge, 13 Thin insulation sheet piece, 14 Extension piece, 17 Projection piece, 18
Protruding piece receiving step, 20, 22 phase insulating sheet,
25 interphase insulating piece, 26, 27 thin hinge, 28 interphase insulating piece, 29 thin hinge.

Claims (11)

[Claims] 1. A slot substantially equiangularly spaced in a circumferential direction, and each slot provided in each of a plurality of magnetic pole pieces is divided into a substantially fan shape by a cut extending in a radial direction while leaving a thin joint portion on an outer peripheral side. In the unfolded state, the winding is wound around the magnetic pole piece by passing the winding through the U-shaped slot present back to back on both sides of each magnetic pole piece, and the fixed for the rotating electric machine is formed by the split type connecting core. In the insulator for the iron core, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end of the pole piece. A U-shape that is electrically insulated and has a constricted tip piece that bends radially inward of the slot from the tip at the tip of the outer piece that covers the radially outer wall surface of the slot. Rotary power characterized by the following: Insulator for use stator core. 2. The constricted tip piece has a shape in a free state in which a tip edge is equal to a radial position of an outer piece part of the insulator or is located at a radial outer position therefrom. The insulator for a stator core for a rotating electric machine according to claim 1, wherein 3. Each slot provided for each of the plurality of magnetic pole pieces at equal intervals in the circumferential direction is divided into a substantially fan-like shape by a cut extending in the radial direction while leaving a thin joint portion on the outer peripheral side. In the unfolded state, the winding is wound around the magnetic pole piece by passing the winding through the U-shaped slot present back to back on both sides of each magnetic pole piece, and the fixed for the rotating electric machine is formed by the split type connecting core. In the insulator for the core, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end of the pole piece. A thin insulating sheet piece that is formed into a U-shape that electrically insulates and coats the outer piece that covers the radially outer wall surface of the slot is attached to the tip of the outer piece that bends radially inward of the slot from the tip. Specially Insulator for a rotary electric machine stator core to. 4. Each slot provided in each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction is divided into a substantially fan shape by a cut extending in the radial direction while leaving a thin joint portion on the outer peripheral side. In the unfolded state, the winding is wound around the magnetic pole piece by passing the winding through the U-shaped slot present back to back on both sides of each magnetic pole piece, and the fixed for the rotating electric machine is formed by the split type connecting core. In the insulator for the iron core, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end of the pole piece. An extension piece that is bent in a radially outward direction of the slot from a tip of an outer piece that covers a radially outer wall surface of the slot. One part is the split type connecting core Insulator for a rotary electric machine stator core, characterized by being pinched by closed annularly accommodated in the segmented coupling core split surfaces stepped portion which is previously formed on between the divided surfaces. 5. Each slot provided in each of a plurality of magnetic pole pieces at equal intervals in a circumferential direction is divided into a substantially fan shape by a cut extending in a radial direction while leaving a thin joint portion on an outer peripheral side. In the unfolded state, the winding is wound around the magnetic pole piece by passing the winding through the U-shaped slot present back to back on both sides of each magnetic pole piece, and the fixed for the rotating electric machine is formed by the split type connecting core. In the insulator for the iron core, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end of the pole piece. The outer piece that covers the radially outer wall surface of the slot on one side is provided with a protruding piece, and the radially outer wall surface of the slot on the other side is The outer piece to be coated has another Insulator for a rotary electric machine stator core annular, characterized in that the projecting piece receiving stepped portion for receiving the protruding parts of Nshureta is provided. 6. Each slot provided in each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction is divided into a substantially fan shape by a cut extending in the radial direction while leaving a thin joint portion on the outer peripheral side. In the unfolded state, for a rotating electric machine having an annular shape by a split-type connecting iron core in which a winding is wound around the magnetic pole piece by passing a winding through a substantially U-shaped slot existing back to back on both sides of each magnetic pole piece. In the insulator for the stator core, the pole piece is fitted over the outer circumference of the pole piece so as to straddle the pole piece from one end of the pole piece, and the wall surfaces of the slots on both sides of the pole piece are A U-shaped insulator body for electrically insulating coating, and the insulator body is locked by being sandwiched at one end between a tip of an outer piece covering a radially outer wall surface of the slot and an iron core. Is An interphase insulating sheet that extends radially inward of the slot by being closed in an annular shape and that is present between windings of adjacent pole pieces. Insulator for stator core for rotating electric machine. 7. The interphase insulating sheet has a V
7. The insulator according to claim 6, wherein the insulator body is locked by being sandwiched between a tip of an outer piece portion of the insulator main body attached to an adjacent magnetic pole piece portion and an iron core. Insulator for stator core for rotating electric machines. 8. Each of the slots provided for each of the plurality of pole pieces at equal intervals in the circumferential direction is divided into a substantially fan shape by a cut extending in the radial direction while leaving a thin joint portion on the outer peripheral side. In the unfolded state, for a rotating electric machine having an annular shape by a split-type connecting iron core in which a winding is wound around the magnetic pole piece by passing a winding through a substantially U-shaped slot existing back to back on both sides of each magnetic pole piece. In the insulator for the stator core, the pole piece is fitted over the outer circumference of the pole piece so as to straddle the pole piece from one end of the pole piece, and the wall surfaces of the slots on both sides of the pole piece are A U-shaped insulator body for electrically insulating coating, and the insulator body is locked by being sandwiched at one end between a tip of an outer piece covering a radially outer wall surface of the slot and an iron core. Is An interphase insulating sheet, the other end of which is locked by sandwiching the other end between the tip of an inner piece part covering the radially inner wall surface of the slot and the iron core at the other end. An insulator for a stator core for a rotating electric machine. 9. Each slot provided at a plurality of pole piece portions at equal intervals in the circumferential direction is divided into a substantially fan-like shape by a cut extending radially while leaving a thin joint portion on the outer peripheral side. In the unfolded state, for a rotating electric machine having an annular shape by a split-type connecting iron core in which a winding is wound around the magnetic pole piece by passing a winding through a substantially U-shaped slot existing back to back on both sides of each magnetic pole piece. In the insulator for the stator core, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end of the pole piece, and the wall surfaces of the slots on both sides of the pole piece are It has a U-shape for electrically insulating coating, and the interphase insulating piece can be bent inward in the radial direction of the slot at each of the tips of the outer pieces on both sides that cover the radially outer wall surfaces of the slots on both sides respectively. In the deployed state Insulator for a rotary electric machine stator core, characterized in that the tip of the interphase insulating piece in each other as the adjacent pole pieces are linked to each other disconnected. 10. The insulator for a stator core for a rotating electric machine according to claim 9, wherein the inter-phase insulating piece is thinner than the outer piece part. 11. Each slot provided in each of a plurality of magnetic pole pieces at equal intervals in the circumferential direction is divided into a substantially fan shape by a cut extending in the radial direction while leaving a thin joint portion on the outer peripheral side. In the unfolded state, for a rotating electric machine having an annular shape by a split-type connecting iron core in which a winding is wound around the magnetic pole piece by passing a winding through a substantially U-shaped slot existing back to back on both sides of each magnetic pole piece. In the insulator for the stator core, the pole piece is fitted over the outer periphery of the pole piece so as to straddle the pole piece from one end of the pole piece, and the wall surfaces of the slots on both sides of the pole piece are It has a U-shape for electrically insulating coating, and an inter-phase insulating piece is provided at the tip of an outer piece part that covers the radially outer wall surface of one slot so as to be able to bend radially inward of the slot. A rotating machine fixed Insulator for the child core.