JP2003259590A - Insulating sheet or tape, and insulating method for stator of rotary electric machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insulating sheet or tape that facilitates insulation to a series connecting part of a coil, cable connecting part or the like, enables the insulation to be performed in a short time without the need for high skill in work, and has functions for surely retaining and insulation-molding impregnated resin. <P>SOLUTION: The insulating sheet is provided with an assembled mica sheet 1a having assembled mica and an epoxy resin compound, an insulating base material 2 mounted on the single face of the assembled mica sheet 1a, and coupling members 3 so structured that the members are mounted at both ends of the insulating base material 2, made to abut against both the ends and integrated. Both ends of the insulating sheet have coupling structures, thereby enabling the insulation to be performed and an insulating part to be fixed only by coupling the both ends while pressing the insulating sheet against a conductor and connecting parts thereof or the like. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating sheet or tape used in electric equipment such as a rotating electric machine, and a rotating electric machine fixed in which the insulating tape or sheet is wound and then insulated by vacuum pressure impregnation. The present invention relates to a method for insulating a child.

[0002]

2. Description of the Related Art A conventional insulation treatment method for a stator of a rotary electric machine such as an intermediate size induction motor will be described with reference to FIG. That is, in the rotating electric machine stator, the coil 6 obtained by winding the impregnating mica tape around the conductor in which a plurality of strands are bundled is housed in the slot of the stator core 7, and the slot wedge is driven into the stator core 7 of the coil 6. After fixing the inner part and supporting and fixing the coil end portion to the bind band 8 and the bind ring 9, the series connecting portion 10, the pole connecting wire 11, the cable 12 and the pole connecting ring 13 of the coil 6 are connected and connected. Become.

As a method of insulating the rotating electric machine stator having such a structure, a glass tape or an impregnating mica tape is wound around the bind band 8 and the bind ring 9 a predetermined number of times to insulate the bind band 8 and the bind band. A felt 18 is arranged as a cushioning material between the ring 9 and the coil end portion, and a thread is tied with a prepreg glass tape (hereinafter abbreviated as PG tape) 14 to fix it.

Further, the series connecting part 10, the inter-pole connecting wire 11 and its connecting part, the cable 12 connecting part and the inter-electrode connecting ring 13 and its connecting part are wound with an impregnating mica tape in accordance with the insulation class. To insulate. The inter-electrode connecting ring 13 is already wound with an impregnating mica tape in accordance with the insulation class before the connection and connection.

A series connecting portion 10 of the binding band 8, the binding ring 9 and the coil 6, an inter-pole connecting wire 11 and its connecting portion, a cable 12 connecting portion and an inter-electrode connecting ring 1
The mica tape for impregnation is wound around 3 and its connecting portion, and then the shrink film tape is wound around for holding and molding the impregnated resin.

After that, the stator core 7 and the coil 6 are integrally vacuum impregnated with a solventless thermosetting resin in a vacuum processing tank, and integrally cured in a heating furnace to form insulation. The above-mentioned mica tape for impregnation includes an integrated mica obtained by simply making a mica fine piece with water, and Japanese Patent Publication No. 43-204.
Aramid fibrid laminated mica prepared by mixing papermaking with laminated mica and aromatic polyamide pulp-like particles described in Japanese Patent Publication No. 21 and Japanese Patent Publication No. 1-47002 is used.

[0007]

With the conventional insulation treatment method for a rotating electric machine stator using the above-mentioned impregnated mica tape, it is possible to form a strong insulation. However, the coil fastening part to the bind band and the bind ring and the series connection part of the coil, the inter-pole connecting wire and its connection part, the cable connection part and the inter-electrode connection ring and the winding work of the impregnated mica tape to the connection part Is mainly a manual winding work, and in particular, it is a fine work in a restricted gap after the wire connection, so that the worker needs a skilled skill, and the insulation work time becomes long, which is disadvantageous in manufacturing. In addition, after winding the mica tape for impregnation, a shrink film tape treatment is required for resin retention of the impregnated resin and insulation molding.

In view of the above, the present invention provides a high impregnating resin holding function, which makes it easy to insulate a coil series connection portion, a cable connection portion, etc., and can perform insulation treatment in a short time without requiring skill. An object of the present invention is to provide an insulating sheet or tape having an insulating molding function, and an insulating treatment method for a rotating electric machine stator.

[0009]

In order to achieve the above object, an insulating sheet according to the invention of claim 1 is provided with an assembled mica sheet containing mica and an epoxy resin composition, and provided on one side of the assembled mica sheet. The insulating base material is provided with a connecting member having a structure provided at both end portions of the insulating base material and abutted and integrated with each other.

Since the insulating sheet of the present invention has a connecting structure at both ends, insulation and fixing of the insulating portion can be performed only by pressing the conductor and its connecting portion and connecting the both ends. it can.

The insulating sheet of the invention of claim 2 is the same as that of claim 1.
In the invention, the prepreg felt impregnated with the epoxy resin composition is provided between the laminated mica sheet and the insulating substrate.

Since the insulating sheet of the present invention has a connecting structure at both ends thereof, insulation and fixing of the insulating portion can be performed only by pressing the conductor and its connecting portion and connecting the both ends. it can. Further, since the prepreg felt impregnated with the epoxy resin composition is flexible, it is possible to make the contact state with the conductor having a complicated shape and the connecting portion thereof close.

The insulating sheet or tape according to claim 3 is provided on both sides of the assembled mica sheet or tape having the assembled mica and the epoxy resin composition, and is heat-shrinkable and superposed and bonded. And the insulating base material to which the fitting member is attached.

The insulating sheet or tape of the present invention is provided with a heat-shrinkable fitting member having a structure of overlapping and joining or an insulating base material to which the fitting member is attached. Can be insulated and fixed by simply pressing the conductor and its connecting portion to overlap the ends, or in the case of an insulating tape, winding the layers. Also, by using a heat-shrinkable fitting member or insulating base material, when the resin is impregnated and heat-cured, the fitting member or insulating base material heat-shrinks, so resin retention is good and the insulation molding is strong. You can

According to a fourth aspect of the invention, in the third aspect of the invention, a prepreg felt impregnated with an epoxy resin composition is provided between one side of the laminated mica sheet or tape and the fitting member or the insulating base material. It is a composition.

Since the insulating sheet or tape of the present invention is provided with a fitting member having a structure that is heat-shrinkable and superposed and bonded, or an insulating base material to which the fitting member is attached,
The insulating sheet can be insulated and fixed by simply pressing the insulating sheet against the conductor and the connecting portion thereof and overlapping the ends thereof, and by simply winding the insulating tape in layers. Further, since the prepreg felt impregnated with the epoxy resin composition is flexible, it is possible to make the contact state with the conductor having a complicated shape and the connecting portion thereof close.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the insulating base material is made of a woven or non-woven fabric or film of heat-shrinkable organic fibers. According to the present invention, by using a woven or non-woven fabric or a film made of an organic fiber such as heat-shrinkable polyester, polyethylene, polypropylene or nylon as the insulating base material, the insulating base material is impregnated with the resin and cured by heating. Since the resin shrinks, the resin is well retained and a strong insulation can be formed.

According to a sixth aspect of the present invention, a coil obtained by winding an impregnated mica tape around a conductor formed by bundling a plurality of strands is placed in a slot of a stator core, and the coil is fixed in the stator core. A method for insulation treatment of a rotating electric machine stator, comprising supporting and fixing an end portion to a bind band and a bind ring, and then connecting and connecting a series connection portion of a coil, a pole connecting wire, a cable and a pole connecting ring. 6. The binding band and binding ring, the series connecting portion of the coil, the inter-pole connecting wire and its connecting portion, the cable connecting portion, the inter-electrode connecting ring, using the insulating sheet or tape according to any one of And its connection is wrapped or wound to insulate it, the stator core and coil are integrally impregnated with resin in a vacuum processing tank, and they are integrally cured in a heating furnace. .

According to the present invention, since the fitting member having the structure of being heat-shrinkable and superposed and bonded to each other or the insulating base material to which the fitting member is attached is arranged in the insulating sheet or the insulating tape. It does not require fixing process such as tape winding, and bind band, bind ring and coil series connection part,
Insulation treatment for the inter-pole connecting wire and its connecting portion, the cable connecting portion, the inter-electrode connecting ring and its connecting portion is simple, and it is possible to perform the insulating treatment in a short time without requiring skill in the work.
When the insulating sheet or tape according to claim 2 or 4 is used, since a prepreg felt that is flexible and relaxes mechanical stress is disposed inside as a constituent material of the insulating sheet and the tape, the bind band and the bind ring are formed. The buffer material provided between the coil end portion and the coil end portion is unnecessary. Furthermore, by using the heat-shrinkable fitting member and the insulating base material, it is not necessary to process the shrinkable film tape for holding the impregnated resin and insulating molding.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An insulating sheet according to a first embodiment of the present invention will be described below with reference to FIG. The insulating sheet 4a of the present embodiment is composed of a laminated mica sheet 1a, an insulating base material 2 and a connecting member 3. That is, a laminated mica sheet 1a composed of the laminated mica and the epoxy resin composition
The insulating base material 2 is disposed on one surface of the insulating base material 2, and the connecting members 3 having a structure of abutting and integrating with each other are attached to both ends of the insulating base material 2.

As the insulating base material 2, polyester fiber,
Any woven or non-woven fabric or film made of a heat-shrinkable organic fiber such as polyethylene fiber, polypropylene fiber or nylon fiber can be used. In the present embodiment, a polyester fiber woven fabric (for example, Tetron made by Teijin) is used as the insulating base material 2, and resin fasteners (for example, YKK ziplon made as YKK) are attached as the connecting members 3 to both ends of the polyester fiber woven fabric. An insulating sheet 4a was obtained by sticking one side of the assembled mica sheet 1a with a silicone resin.

Since the insulating sheet 4a of the present embodiment obtained in this manner has both ends thereof constituted by the connecting members 3, it is pressed against the conductor and its connecting portion, etc.
Insulation and fixing of the insulating part can be performed only by connecting the both ends. Further, since the insulating base material 2 is made of a heat-shrinkable organic fiber, when it is impregnated with a resin and heat-cured, the heat-shrinkage causes the resin to be retained well and a strong insulation can be formed.

Next, an insulating sheet according to the second embodiment of the present invention will be described with reference to FIG. The insulating sheet according to the present embodiment includes the laminated mica sheet 1a and the prepreg felt 5
And an insulating base material 2 and a connecting member 3. That is,
An prepreg felt 5 impregnated with an epoxy resin composition is provided on one side of an assembled mica sheet 1a composed of an assembled mica and an epoxy resin composition, and an insulating substrate 2 is arranged on one side of the prepreg felt 5. On both ends of the insulating base material 2, connecting members 3 having a structure of abutting and integrating are attached.

As the insulating base material 2, polyester fiber,
Any woven or non-woven fabric or film made of a heat-shrinkable organic fiber such as polyethylene fiber, polypropylene fiber or nylon fiber can be used.

In the present embodiment, a polyester fiber woven cloth (for example, Tetron manufactured by Teijin) is used as the insulating base material 2, and resin fasteners (for example, YKK zipron manufactured by YKK) are used as the connecting members 3 on both ends of the polyester fiber woven cloth. ) Was attached, and a non-solvent type epoxy resin composition consisting of bisphenol type epoxy and methyltetrahydrophthalic anhydride was impregnated and bonded to a B stage prepreg felt 5 to obtain an insulating sheet 4b.

Since the insulating sheet 4b of the present embodiment thus obtained has both end portions made of the connecting members 3, it is pressed against the conductor and its connecting portion, and the both end portions are connected. Insulation and fixing of the insulation part can be performed only by In addition, since the prepreg felt 5 impregnated with the epoxy resin composition is flexible, it is possible to make the contact state with the conductor having a complicated shape and the connecting portion thereof intimate. Furthermore, by using the heat-shrinkable felt and the insulating base material 2, when the resin is impregnated and heat-cured, the heat-shrinkage causes the resin to be retained well and a strong insulation can be formed.

Next, an insulation treatment method for a rotating electric machine stator according to a third embodiment of the present invention will be described with reference to FIG. In the rotating electric machine stator to which the present embodiment is applied, a coil 6 in which a mica tape for impregnation is wound around a conductor in which a plurality of strands are bundled is housed in a slot of a stator iron core 7, and a slot wedge is driven to drive the coil 6 After fixing the inner portion of the stator core 7 of the above, and supporting and fixing the coil end portion to the bind band 8 and the bind ring 9, the series connecting portion 10 of the coil 6 and the inter-pole connecting wire 1
1, the cable 12 and the inter-electrode connecting ring 13 are connected and connected.

In the insulation treatment method for a rotating electric machine stator having such a structure, one or two or more of the insulation sheets 4a and 4b of the first or second embodiment are used to bind the binding band 8 And the binding ring 9, the series connection portion 10 of the coil 6, the inter-pole connecting wire 11 and its connection portion,
After the cable 12 connecting portion, the inter-electrode connecting ring 13 and the connecting portion are wrapped and insulated to connect both ends of the insulating sheet 4a or 4b, the stator core 7 and the coil 6 are integrally formed in the vacuum processing tank. It is impregnated with resin and integrally cured in a heating furnace.

Here, after the binding band 8 and the binding ring 9 are insulated using the insulating sheet 4b of the second embodiment, the binding band 8 and the binding ring 9 and the coil end portion are thread-tied 14 with PG tape. To fix. Also,
Using the insulating sheet 4a of the first embodiment, the series connecting portion 10 of the coil 6, the inter-pole connecting wire 11 and the connecting portion thereof,
The cable 12 connecting portion, the inter-electrode connecting ring 13 and the connecting portion are insulated.

After that, the stator core 7 and the coil 6 are integrally vacuum-impregnated with a solventless thermosetting resin in a vacuum processing tank and integrally cured in a heating furnace to cure the stator of the rotating electric machine. Insulate.

According to the insulation treatment method of the present embodiment, both ends of the insulation sheets 4a and 4b have a connection structure,
Since the fixing process such as tape winding is unnecessary, the series connecting portion 10 of the bind band 8, the bind ring 9 and the coil 6,
Insulation treatment for the inter-pole connecting wire 11 and its connecting portion, the cable 12 connecting portion, the inter-electrode connecting ring 13 and its connecting portion is simple, and it is possible to perform the insulating treatment in a short time without requiring skill in the work. .

Further, since the prepreg felt 5 which is a constituent material of the insulating sheet 4b obtained in the second embodiment is flexible and relieves mechanical stress, the contact state with a conductor having a complicated shape and a connecting portion thereof is maintained. Can be dense and binds band 8
Also, the cushioning material provided between the bind ring 9 and the coil end portion becomes unnecessary. Furthermore, since the insulating sheets 4a and 4b are thermally shrunk during heating, the shrink film tape treatment for resin holding of the impregnated resin and insulation molding is not required.

Next, an insulating sheet or tape according to a fourth embodiment of the present invention will be described with reference to FIG. That is,
Insulation sheet 16a or insulation tape 16 of the present embodiment
b is on both sides of the laminated mica sheet 1a or the laminated mica tape 1b composed of the laminated mica and the epoxy resin composition,
This is a configuration in which the fitting member 15 having a structure of being heat-shrinkable and superposed and coupled to each other is arranged, or the insulating base material 2 to which the fitting member 15 is attached.

As the fitting member 15, a heat-shrinkable surface fastener made of polyolefin resin, nylon resin, or the like is used. As the insulating base material 2 to which the fitting member 15 is attached, any one of a woven cloth, a non-woven cloth, and a film made of a heat-shrinkable organic fiber such as polyester fiber, polyethylene fiber, polypropylene fiber, and nylon fiber is used. be able to. Here, a nylon resin surface fastener (for example, YKK) is used as the fitting member 15.
(Manufactured by Quicklon Co., Ltd.) was used to bond both sides of the laminated mica sheet 1a or tape 1b with a silicone resin to obtain the insulating sheet 16a or insulating tape 16b of the present embodiment.

The insulating sheet 16a or the insulating tape 16b of the present embodiment obtained in this manner is a heat-shrinkable fitting member 15 having a structure in which the fitting member 15 or the fitting member 15 is adhered to the structure. Since the material 2 is arranged, in the case of the insulating sheet 16a, it is sufficient to press the conductor and its connecting portion and the like to overlap the end portions thereof, and also the insulating tape 1
In the case of 6b, it is possible to perform insulation and fixing of the insulating portion only by wrapping the layers.

Further, by using the heat-shrinkable fitting member 15 or the insulating base material 2, when the resin is impregnated and cured by heating,
Since the fitting member 15 or the insulating base material 2 is thermally contracted, the resin can be held well and a strong insulation can be formed.

Next, an insulating sheet or tape according to the fifth embodiment of the present invention will be described with reference to FIG. That is,
Insulating tape 17a or insulating sheet 17 of this embodiment
b is a prepreg felt 5 in which the epoxy resin composition is impregnated on one side of the laminated mica sheet 1a or the laminated mica sheet 1b composed of the laminated mica and the epoxy resin composition.
Is provided, and the insulating member 2 having the structure in which the fitting member 15 or the fitting member 15 having the structure in which the fitting member 15 and the fitting member 15 are adhered to each other by heat shrinking are superposed and bonded is arranged.

As the fitting member 15, a heat-shrinkable surface fastener made of polyolefin resin, nylon resin or the like is used. Further, as the insulating base material 2 to which the fitting member 15 is attached, any one of a woven fabric, a non-woven fabric and a film made of a heat-shrinkable organic fiber such as polyester fiber, polyethylene fiber, polypropylene resin and nylon resin is used. be able to.

Here, a nylon resin surface fastener (for example, YKK Quicklon) is used as the fitting member 15, and the mica sheet 1a or the mica tape 1b is prepared from bisphenol type epoxy and methyltetrahydrophthalic anhydride. The resulting non-solvent type epoxy resin composition was impregnated and bonded to both sides of the B-stage prepreg felt 5 to obtain an insulating sheet 17a or an insulating tape 17b.

The insulating sheet 17a or the insulating tape 17b of the present embodiment thus obtained is a fitting member 15 of a structure which is heat-shrinkable and superposed and bonded, or an insulating substrate to which the fitting member 15 is attached. Since the material 2 is arranged, in the case of the insulating sheet 17a, the insulating tape 17 can be obtained by simply pressing the conductor and its connecting portion and overlapping the ends.
In the case of b, the insulation and the fixing of the insulation part can be performed only by lap-wrapping.

Further, since the prepreg felt 5 impregnated with the epoxy resin composition is flexible, it is possible to make the contact state with the conductor having a complicated shape and the connecting portion thereof dense. Furthermore, by using the heat-shrinkable prepreg felt 5, the fitting member 15 and the insulating base material 2, when the resin is impregnated and cured by heating, the prepreg felt 5 and the fitting member 15 are used.
In addition, since the insulating base material 2 is thermally shrunk, the resin is well retained and a strong insulation can be formed.

Next, an insulation treatment method for a rotating electric machine stator according to a sixth embodiment of the present invention will be described with reference to FIG. In the rotating electric machine stator to which the present embodiment is applied, a coil 6 in which a mica tape for impregnation is wound around a conductor in which a plurality of strands are bundled is housed in a slot of a stator iron core 7, and a slot wedge is driven to drive the coil 6 After fixing the portion inside the stator core 7 of the above and supporting and fixing the coil end portion to the bind band 8 and the bind ring 9, the series connecting portion 10, the inter-pole connecting wire 11, the cable 12, and the inter-electrode connecting ring of the coil 6 are fixed. 13 is connected and connected.

In the insulation treatment method for a rotating electric machine stator having such a structure, one of the insulating sheet 16a, the insulating tape 16b, the insulating sheet 17a, or the insulating tape 17b of the fourth or fifth embodiment, or By using two or more, the binding band 8 and the binding ring 9, the series connection part 10 of the coil 6, the inter-pole crossover wire 11 and its connection part, the cable 12 connection part, the inter-electrode connection ring 1
3 and its connecting portion are wrapped or wound to be insulated, the stator core 7 and the coil 6 are integrally impregnated with resin in a vacuum processing tank, and integrally cured in a heating furnace.

At this time, after the binding strip 8 and the binding ring 9 are insulated by using the insulating sheet 17a and the insulating tape 17b of the fifth embodiment, the binding strip 8 and the binding ring 9 and the coil end portion are made of PG tape. Thread binding 1
4 and fix. Further, using the insulating sheet 16a and the insulating tape 16b of the fourth embodiment, the series connection part 10 of the coil 6, the inter-pole crossover wire 11 and its connection part, the cable 12 connection part, the inter-electrode connection ring 13 and its connection. Insulate the part by covering or winding.

After that, the stator core 7 and the coil 6 are integrally vacuum-impregnated with a solventless thermosetting resin in a vacuum processing tank, and integrally cured in a heating furnace to fix the stator of the rotating electric machine. Insulate.

According to the insulation treatment method of the present embodiment, the fitting member 15 or the insulating base material to which the fitting member 15 is attached is laminated in the insulating sheet or the insulating tape by heat shrinking so as to be bonded together. 2 is arranged, fixing processing such as tape winding is unnecessary, and the binding band 8 and the binding ring 9 are provided.
Also, the series connector 10 of the coil 6, the inter-pole connecting wire 11 and its connecting portion, the cable 12 connecting portion, the inter-electrode connecting ring 13 and the connecting portion thereof can be easily insulated, and the work is short without requiring skill. Insulation treatment can be performed in time.

In addition, the insulating sheet 17 of the fifth embodiment
Since the prepreg felt 5 of a or the constituent material of the insulating tape 17b is flexible and relieves mechanical stress, it is possible to make the contact state with the conductor having a complicated shape and its connecting portion close, and to bind the binding strip 8 and the binding band. Felt 18 as a cushioning material conventionally provided between the ring 9 and the coil end portion
Is unnecessary. Furthermore, since the heat-shrinkable fitting member 15, the insulating sheet provided with the prepreg felt 5 and the insulating base material 2 and the insulating tape are used, it is necessary to treat the shrinkable film tape for holding the impregnated resin and insulating molding. do not do.

[0048]

EFFECTS OF THE INVENTION According to the present invention, it is easy to insulate the series connection portion, the cable connection portion, etc. of the coil, and it is possible to perform the insulation treatment in a short time without requiring any skill in the work. It is possible to provide an insulating sheet or tape having a holding function and an insulating molding function, and an insulating treatment method for a rotating electric machine stator.

[Brief description of drawings]

FIG. 1 is a sectional view showing an insulating sheet according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing an insulating sheet according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating an insulation treatment method for a rotating electric machine stator according to a third embodiment and a sixth embodiment of the present invention.

FIG. 4 is a sectional view showing an insulating sheet or tape according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view showing an insulating sheet or tape according to a fifth embodiment of the present invention.

FIG. 6 is a cross-sectional view illustrating a conventional insulation treatment method for a rotating electric machine stator.

[Explanation of symbols]

1a, 1b ... laminated mica sheet, 2 ... insulating base material, 3 ... connecting member, 4a, 4b ... insulating sheet, 5 ... prepreg felt, 6 ... coil, 7 ... stator core, 8 ... bind band,
9 ... Bind ring, 10 ... Series connection part, 11 ... Inter-pole crossover wire, 12 ... Cable, 13 ... Inter-pole connection ring,
14 ... Thread binding, 15 ... Fitting member, 16a ... Insulating sheet,
16b ... Insulating tape, 17a ... Insulating sheet, 17b ... Insulating tape, 18 ... Felt.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H02K 3/50 H02K 3/50 A 15/04 15/04 E 15/12 15/12 D (72) Invention Noriyuki Iwata, 2-4 Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa, Toshiba Keihin Plant (72) Inventor Mikio Takahata 2-4, Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa F-term, Toshiba Corp. (reference) ) 5G333 AA03 AB07 AB18 AB29 CB20 DA11 DA25 EB00 5H604 AA05 AA08 BB01 BB03 BB08 BB14 CC01 CC05 CC13 DA09 DA14 DA15 DA16 DB02 DB15 DB25 DB26 DB29 PB02 PB03 PB04 PP01 PC14 PC01 Q03 QQ06 QQ12 QQ26 QQ27 QQ28 RR02 RR03 RR07 SS09 SS41 TT22 TT23 TT26 TT31 TT34 TT36

Claims (6)

[Claims] 1. A laminated mica sheet having a laminated mica and an epoxy resin composition, an insulating base material provided on one side of the laminated mica sheet, and abutting and integrated with both end portions of the insulating base material. An insulating sheet having a connecting member having a structure. 2. The insulating sheet according to claim 1, wherein a prepreg felt impregnated with an epoxy resin composition is provided between the laminated mica sheet and the insulating base material. 3. An assembled mica sheet or tape having an assembled mica and an epoxy resin composition, and a fitting member having a structure which is provided on both sides of the assembled mica sheet or tape, and which is heat-shrinkable and superposed and joined. An insulating sheet or tape comprising: an insulating base material having a fitting member attached thereto. 4. The insulating sheet according to claim 3, wherein a prepreg felt impregnated with an epoxy resin composition is provided between one side of the laminated mica sheet or tape and the fitting member or the insulating base material. Or tape. 5. The insulating sheet or tape according to claim 1, wherein the insulating base material is made of a woven cloth or a nonwoven cloth of heat-shrinkable organic fiber or a film. 6. A coil, in which a mica tape for impregnation is wound around a conductor formed by bundling a plurality of strands, is housed in a slot of a stator core, the coil is fixed in the stator core, and a coil end portion is bound. And after supporting and fixing to the bind ring,
An insulating sheet or tape according to any one of claims 1 to 5 is used in an insulating treatment method for a rotating electric machine stator, which is configured by connecting and connecting a series connecting portion of coils, an inter-pole connecting wire, a cable, and an inter-electrode connecting ring. The binding band and the binding ring, the coil series connection portion, the inter-pole connecting wire and its connection portion, the cable connection portion, the inter-electrode connection ring and the connection portion are wrapped or wound to insulate, and vacuum A method for insulation treatment of a rotating electric machine stator, comprising integrally impregnating a stator core and a coil with resin in a processing tank and integrally curing the resin in a heating furnace.