JP2001086681A - Rotary electric machine and its repairing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily repair a creepage block by sticking an insulation member onto a surface at the wedge side of a creepage block. SOLUTION: A plate-shaped insulation member 22 is stuck to the side of a wedge 20 of a creepage block 21 for integrating with the creepage block 21, thus preventing the creepage block 21 itself from wearing out by relative sliding in an axial direction with the wedge 20, merely replacing the plate-shaped insulating member 22 for repairing the creepage block 21, easily repairing the creepage block 21, shortening time required for repairing a turbine generator, at the same time, eliminating the need for the machining or updating of the creepage block 21, and hence reducing costs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating electric machine and a method for repairing the same, and more particularly, to a rotating electric machine having a gap pickup type cooling structure and a method for repairing the same.

[0002]

2. Description of the Related Art As a cooling structure of a rotating electric machine, there is known a structure called a gap pickup system as described in, for example, JP-A-60-187236. In this cooling structure, a plurality of ventilation holes are formed in each of a plurality of winding conductors, a crease block, and a wedge which are sequentially housed in a plurality of slots of the rotor core toward the outer peripheral side of the rotor core, and a cooling medium is supplied to the rotor core. A plurality of V-shaped ventilation passages are formed in the rotor core to flow in the axial direction of the rotor core while flowing in the radial direction.

[0003] The ventilation holes provided in the winding conductor are required to cross the inlet and outlet sides of the cooling medium in the same cross section in the width direction of the slot and to increase the contact area with the cooling medium. And Since the wedge supports the load of the winding conductor and the like under its high shoulder under high centrifugal force, it is necessary to secure its strength. For this reason, the ventilation holes provided in the wedge are round or square holes. Therefore, the ventilation holes provided in the crimper block arranged between the winding conductor and the wedge are elongated on the winding conductor side, and the wedge side is a round or square hole,
Moreover, the holes are formed so that two holes having different shapes communicate with each other.

[0004]

In the cooling structure of the gap pickup type, since the winding conductor is directly cooled by the cooling medium, there is a possibility that a grounding accident may be caused by the entry of the conductive foreign matter. In particular, as described above, the ventilation holes provided in the crease page block are deformed from the long holes into a round shape or a square shape, so that the entered conductive foreign matter is deposited or a relatively large conductive foreign matter is caught. There is fear.

[0005] Further, the long hole provided in the clickable block partially penetrates from the winding conductor side to the wedge side, and the creepage distance between the winding conductor and the wedge at that portion in the crevice block is reduced. There is a possibility that the winding conductor and the wedge may be grounded by the conductive foreign matter deposited or caught by the thickness. Furthermore, the wedge side of the crease block is worn due to sliding relative to the wedge in the axial direction, etc., so that the creepage distance between the winding conductor and the wedge at the penetrating portion of the above-mentioned elongated hole becomes increasingly insufficient. .

In addition, the wedge-side surface of the crimpage block is worn due to relative sliding with the wedge in the axial direction and the like, and if the amount of wear is increased by long-term operation, the smoothness of the surface is impaired. The coefficient of friction between the crease page block and the wedge becomes high, and the heat elongation due to the temperature change during the operation causes a stiffness, and the vibration of the rotor increases. Accordingly, it has been desired to extend the service life of the crippage block against relative sliding in the axial direction with the wedge.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a highly reliable rotating electric machine capable of preventing a winding conductor and a wedge from being grounded by a conductive foreign matter. Another object of the present invention is to provide a rotating electric machine that can easily repair a crease block when the amount of wear on the surface of the wedge side of the crease block increases due to long-term operation, and a method of repairing the rotating electric machine. Furthermore, it is possible to prevent the winding conductor and the wedge from being grounded by the conductive foreign matter, and to easily repair the crippage block when the amount of wear on the wedge-side surface of the crippage block increases due to long-term operation. An object is to provide a highly reliable rotating electric machine.

[0008]

According to a first aspect of the present invention, there is provided a winding conductor housed in a plurality of slots of a rotor core and an outer periphery of the rotor core which is housed in the slots and which is larger than the winding conductor. A rotating electric machine having a rotor with a wedge arranged on the side and a crimper block housed in the slot and arranged between the winding conductor and the wedge,
An insulation member is fixed to the wedge-side surface of the click page block.

According to a second aspect of the invention, there is provided a winding conductor housed in a plurality of slots of a rotor core, and a wedge housed in the slot and disposed on the outer peripheral side of the rotor core with respect to the winding conductor. And a rotor having a crimper block accommodated in the slot and disposed between the winding conductor and the wedge, wherein the crease page block is provided in a long hole and a wedge provided in the winding conductor. The long hole is a rotating electrical machine provided with a hole communicating with a hole having a different shape, and an insulating member provided with a hole communicating the hole provided in the wedge and the hole provided in the crease block. Is arranged between the wedge and the crippage block.

According to a third aspect of the invention, there is provided a winding conductor housed in a plurality of slots of a rotor core, and a wedge housed in the slot and disposed on the outer peripheral side of the rotor core with respect to the winding conductor. And a rotor having a crimper block accommodated in the slot and disposed between the winding conductor and the wedge, wherein the crease page block is provided in a long hole and a wedge provided in the winding conductor. The long hole is a rotating electrical machine provided with a hole communicating with a hole having a different shape, and an insulating member provided with a hole communicating the hole provided in the wedge and the hole provided in the crease block. Is fixed to the wedge-side surface of the crease page block.

In the rotating electric machine according to the first to third aspects, the insulating member is a plate having a thickness of 0.2 to 5.0 mm. The insulating member is a laminated body of glass fibers impregnated with a heat-resistant resin, and has a surface roughness of 2.5 μm or less on a contact surface with a wedge. The insulating member is formed by using aramid fiber paper, and has a Teflon resin applied to a contact surface with the wedge.

In the rotating electric machine according to the second or third aspect of the present invention, the hole provided in the insulating member is concentric with the hole provided in the wedge with an error of 5 mm or less, and has a circular shape with the same diameter of 5 mm or less. It has a square shape.

According to a fourth aspect of the present invention, there is provided a rotor having a rotor in which a winding conductor, a crease block, and a wedge are housed in a plurality of slots of a rotor core in order toward an outer peripheral side of the rotor core. This is a method of repairing the electric machine, and when repairing the clickable block, only the insulating member fixed to the wedge-side surface of the clearpage block is replaced.

[0014]

An embodiment according to the present invention will be described with reference to the drawings.

FIG. 1 shows the entire structure of a turbine generator according to the present embodiment. In the drawings, reference numeral 1 denotes a stator frame. On the inner peripheral side of the stator frame 1, a cylindrical stator core 2 is provided. A plurality of axially continuous slots are formed in the inner peripheral portion of the stator core 2 in the circumferential direction, and the stator windings 5 are accommodated therein. A plurality of radially continuous ventilation ducts are formed in the stator core 2 in the axial direction.

On the inner peripheral side of the stator core 2, a rotor core 3 is provided concentrically with the stator core 2 via a gap. A plurality of axially continuous slots are formed in the outer peripheral portion of the rotor core 3 in the circumferential direction to accommodate the rotor windings 6 (also referred to as field windings). An annular retaining ring 7 for pressing the end of the rotor winding 6 is provided at both ends of the rotor core 3.
Is provided. The rotation shaft 4 extends from the center of the side surface of the rotor core 3 to both sides in the axial direction. Rotating shaft 4 is rotor core 3
And are formed integrally.

An annular bracket 10 is provided at each end of the stator frame 1 in the axial direction. A bearing device 9 for rotatably supporting the rotating shaft 4 is provided on the inner peripheral side of the bracket 10. The rotating shaft 4 between the side end of the rotor core 3 and the bearing device 9
A cooling fan 8 for circulating a cooling medium in the generator inside the machine is provided above. In a space between the inner diameter side of the stator frame 1 and the outer diameter side of the stator core 2, a plurality of coolers 11 for cooling a cooling medium in the generator are provided.

A current collector 12 is provided at one end of the generator body. The current collector 12 is configured such that the carbon brush held by the brush holding device is brought into pressure contact with a current collector ring provided on a rotating shaft 4 protruding in the axial direction from one side of the generator body, and the rotating It is configured to supply power to the slave winding 6. A terminal 13 for taking out generated power is provided outside the stator frame 1.

FIG. 2 shows the external configuration of the rotor of FIG. 1, FIG. 3 shows the configuration of a cross section taken along the line III--III of FIG. 2, and FIG.
The configuration of the IV portion of FIG. As described above, the slots 1 continuous in the axial direction are provided on the outer peripheral portion of the rotor core 3.
4 are formed in the circumferential direction to accommodate the rotor winding 6. The rotor winding 6 is made of a copper plate conductor 15 and a turn insulation 1.
6 and a plurality of winding conductors 17 formed by alternately stacking a plurality of windings 6 and housed in each of the slots 14 via a slot armor 18. An underlay 19 is provided between a lower portion of the slot 14 (a portion located on the center axis side of the rotor core 3 and facing the opening of the slot 14 opened on the outer peripheral surface of the rotor core 3) and the slot armor 18. Is provided.

In the winding conductor 17, a cooling medium (air, hydrogen gas, or the like is used, but in the present embodiment, hydrogen gas will be described as an example) will be described in the radial direction of the rotor core 3. V-shaped cooling gas ventilation passage 23 flowing in the axial direction of
Are formed. Therefore, each of the plate-shaped conductor 15 and the turn insulation 16 constituting the winding conductor 17 is provided with two rows of long holes 24 (long holes in the longitudinal direction) in the width direction.
A plurality is formed in the longitudinal direction. Moreover, the long holes 24 are formed so as to be shifted in the longitudinal direction for each of the plate-shaped conductor 15 and the turn insulation 16. Further, the cooling gas ventilation passage 23 is formed such that the ventilation passage in one row and the ventilation passage in the other row cross each other. For this reason, a plurality of U-shaped communication grooves 25 are formed in the longitudinal direction in the plate-shaped conductor 15a located at the lower side of the slot 14 so as to communicate between two rows of the cooling gas ventilation passages 23 in the width direction. . As a result, the rotor 3
A plurality of V-shaped cooling gas ventilation passages 23 that are radially continuous with the rotor core 3 while being displaced in the axial direction are formed.

In the above description, the width direction refers to the plate-like conductor 15.
Means a spreading direction between two long sides of the four sides forming the plane of the flat conductor 15, and the longitudinal direction means a spreading direction between two short sides of the four sides forming the plane of the plate-shaped conductor 15. Means Further, the width direction and the longitudinal direction in the following description have the same meaning.

On the outer peripheral side of the rotor core 3 of the winding conductor 17 of the slot 14 (the opening side of the slot 14 opened on the outer peripheral surface of the rotor core 3), the winding conductor 6 projects from the slot 14. Wedge 20 which is a metal wedge member to prevent
The storage is arranged. Wedge 20 has its winding conductor 1
A plurality of ventilation holes 26 having round openings on the 7 side are formed in the longitudinal direction. The ventilation holes 26 are curved from the winding conductor 17 side in the rotation direction or the anti-rotation direction of the rotor core 3 and open to the outer peripheral surface of the rotor core 3. That is, the direction of curvature of the ventilation hole 26 differs depending on the inlet side and the exhaust side of the hydrogen gas. The inlet side is curved in the rotation direction of the rotor core 3 on the inlet side, and is curved in the anti-rotation direction of the rotor core 3 on the exhaust side. are doing. Due to this shape, a positive pressure is generated on the hydrogen gas inlet side, and a negative pressure is generated on the exhaust side.

The winding conductor 17 of the slot 14 and the wedge 2
Between zero and the crease page block 21 which is an insulating member.
(Also referred to as an insulating block). 5 and 6 show the configuration of the clear page block 21. FIG. The click page block 21 is formed by joining block members 21 a to 21 c divided into three in the width direction, and reinforcing them with joining pins 29. A plurality of ventilation holes 28 are formed in the chestnut block 21 in the longitudinal direction. Ventilation hole 28
Consists of an oblong or rectangular long hole 30 formed on the winding conductor 17 side and a square or round ventilation hole 31 formed on the wedge 20 side and communicating with the long hole 30. The block members 21a to 21c And is in communication with the cooling gas ventilation passage 23 formed in the winding conductor 17. For this reason, the winding conductor 17 side of the block members 21a and 21c is provided with a plurality of longitudinally symmetrical oval or rectangular long holes 30 in two rows in the width direction, and the wedge 20 side of the block members 21a and 21c. It is formed obliquely in the longitudinal direction so as to penetrate through. On the wedge 20 side of the block member 21b, a plurality of rectangular or round ventilation holes 31 are formed in the longitudinal direction so as to communicate with the long holes 30 obliquely in the width direction.

A plate-shaped insulating member 22 is housed and arranged between the wedge 20 of the slot 14 and the click block 21. FIG. 7 shows the configuration of the plate-shaped insulating member 22 in a state where it is integrated with the crease block 21. FIG.
FIG. 9 and FIG. 10 show the fixing structure of the plate-shaped insulating member 22 and the crease block 21 as viewed in the direction of arrows VIII-VIII. The plate-shaped insulating member 22 is formed by laminating glass fibers, impregnating the glass fibers with a heat-resistant resin such as an epoxy resin or a polyester resin, and forming a surface on the wedge 20 side (wedge 20).
A plate-shaped member is formed from a laminate or aramid fiber paper of the same material as the crippage block 21 processed to have a roughness of 2.5 μm or less, and the wedge 20 side surface (contact surface with the wedge 20) is formed. ) Is a molded article obtained by applying a Teflon resin to the molded article.

The plate-like insulating member 22 has a thickness of 0.2 to 5.0.
As shown in FIGS. 9 and 10, a pin 32 or a screw 3 is provided on the wedge 20 side of the crimper block 21.
3 or fixed with an adhesive and integrated with the clear page block 21. Here, the reason why the thickness of the plate-shaped insulating member 22 is set to 0.2 mm or more is to secure the reliability with respect to mechanical strength and electric strength, and the thickness of the plate-shaped insulating member 22 is set to 0.5 mm or less. The reason for this is that there is only a margin of 0.5 mm or less for the dimensions to be incorporated into the slot 14, and that the air volume of the hydrogen gas cooling medium is secured. In addition, the pin 32 or the screw 3
Reference numeral 3 also serves as positioning when the plate-like insulating member 22 is fixed to the crease page block 21. The plate-shaped insulating member 22 is processed so that the head of the pin 32 or the screw 33 does not protrude after being fixed to the crease block 21. In addition, the method of fixing the plate-shaped insulating member 22 to the crypage block 21 may be any of the pins 32, the screws 33, and the adhesive, or a combination thereof.

A plurality of ventilation holes 27 having a round opening are formed in the plate-shaped insulating member 22 in the longitudinal direction. The ventilation holes 27 are formed in the wedges 20 of the ventilation holes 26 formed in the wedge 20 and the ventilation holes 28 formed in the crease page block 21.
It communicates with the 0 side (square or round ventilation hole 31).
The ventilation hole 26 formed in the wedge 20 and the ventilation hole 27 formed in the plate-shaped insulating member 22 are concentric with an error within 5 mm,
They have the same diameter with an error within 5 mm.

As described above, in the present embodiment, the wedge 2
0, a ventilation hole 27 formed in the plate-shaped insulating member 22, a ventilation hole 28 formed in the crease block 21 and a cooling gas ventilation passage 23 formed in the winding conductor 17. A plurality of V-shaped ventilation paths for flowing hydrogen gas in the axial direction of the rotor core 3 while flowing hydrogen gas in the radial direction of the rotor core 3 are formed in the rotor core 3 to constitute a gap pickup type cooling structure. .

Next, the flow of hydrogen gas as a cooling medium will be described. When the rotor core 3 rotates, a positive pressure is generated on the hydrogen gas inlet side, that is, on the wedge 20 side having the ventilation hole 26 curved in the rotation direction of the rotor core 3,
Negative pressure is generated on the exhaust side of the hydrogen gas, that is, on the side of the wedge 20 having the ventilation hole 26 that is curved in the anti-rotation direction of the rotor core 3, and a gap is formed between the stator core 2 and the rotor core 3. Ventilation holes 2 formed in hydrogen gas in wedge 20
6. The cooling gas is introduced into the cooling gas ventilation passage 23 formed in the winding conductor 17 through the ventilation hole 27 formed in the plate-shaped insulating member 22 and the ventilation hole 28 formed in the crease block 21.

The introduced hydrogen gas is supplied to the cooling gas ventilation passage 23.
With the rotor core 3 facing inward in the radial direction of the rotor core 3.
Flows while cooling the winding conductor 17 in the axial direction, and reaches the communication groove 25 formed in the plate-shaped conductor 15a, which is the lowest turn of the winding conductor 17. The hydrogen gas that has reached the communication groove 25 changes its direction there, flows while cooling the winding conductor 17 in the axial direction of the rotor core 3 while moving outward in the radial direction of the rotor core 3, and cools the winding conductor 17. The completed hydrogen gas passes through the ventilation holes 28 formed in the crease page block 21, the ventilation holes 27 formed in the plate-shaped insulating member 22, and the ventilation holes 26 formed in the wedge 20 and the stator core 2 and the rotor. It is discharged into the gap between the iron core 3.

According to the present embodiment described above, the plate-shaped insulating member 22 having the ventilation holes 27 communicating the ventilation holes 26 formed in the wedge 20 and the ventilation holes 28 formed in the cribpage block 21. Is provided between the wedge 20 and the chestnut block 21, even if conductive foreign matter accumulates or gets caught in the ventilation holes 28 formed in the chestnut block 21, the winding by the conductive foreign matter Grounding of the conductor 17 and the wedge 20 can be prevented.

That is, since the ventilation holes 28 formed in the chestnut block 21 are deformed from the elongated holes 30 to the round or square ventilation holes 31, there is a possibility that conductive foreign matter may be deposited or caught. Also, Cripage Block 2
1 is partially penetrated from the winding conductor 17 side to the wedge 20 side, and the creepage distance between the winding conductor 17 and the wedge 20 at that portion is equal to the thickness of the cripage block 21. I can only understand. The hatched portion in FIG. 5 indicates a portion where the creepage distance to the ground can only be as large as the thickness of the crease page block 21.

Therefore, in the present embodiment, the ventilation holes 27 communicating with the wedge 20 side (square or round ventilation holes 31) of the ventilation holes 28 formed in the crimper block 21.
5 is provided between the wedge 20 and the crease block 21 so as to cover most of the hatched portions in FIG. 5 and increase the creepage distance of the hatched portions in FIG. are doing. Therefore, even when conductive foreign matter is deposited or caught on the hatched portion in FIG. 5, the conductive foreign matter does not ground the winding conductor 17 and the wedge 20.

As shown in FIG. 7, a plate-like insulating member 22 is provided.
5 slightly overlaps with the hatched portion in FIG. 5 (see the hatched portion in the figure). In this portion, hydrogen gas flows most linearly from the winding conductor 17 side to the wedge 20 side, and the air flow rate also increases. Since there are many, it is difficult for conductive foreign matter to accumulate or be caught in that portion.

According to the present embodiment, the plate-like insulating member 22 is fixed to the wedge 20 side of the click page block 21 and is integrated with the click page block 21. The click page block 21 itself does not wear due to relative sliding, and the repair of the click page block 21 can be performed only by replacing the plate-shaped insulating member 22. Therefore, the crease block 21 can be easily repaired, and the repair period of the turbine generator can be shortened. In addition, the processing of the crease block 21 itself or the update of the crevice block 21 becomes unnecessary, and the cost can be reduced. it can.

Further, according to the present embodiment, the plate-like insulating member 22 is fixed to the wedge 20 side of the click page block 21, and the ventilation holes 2 formed in the click page block 21 are formed.
8 covers the elongated hole 30 penetrating to the wedge 20 side, so that the sliding area with the wedge 20 is reduced.
The surface pressure between the plate-shaped insulating member 22 and the wedge 20 can be reduced by an amount corresponding to the covering of the elongated hole 30 penetrating to the side. Therefore, the wear amount of the surface of the plate-shaped insulating member 22 on the side of the wedge 20 can be reduced, and the life of the crease block 21 against the relative sliding with the wedge 20 in the axial direction can be extended. Hardness is caused by thermal elongation due to a change in temperature, and increase in vibration of the rotor can be suppressed for a long time.

The above-mentioned effect can be obtained from the clear page block 2
1 is processed so that the contact surface with the wedge 20 of the plate-shaped insulating member 22 made of the same material as that of the wedge 20 is 2.5 μm or less, or the wedge 20 of the plate-shaped insulating member 22 formed of aramid fiber paper is used. It can be further improved by applying a Teflon resin to the contact surface with the resin.

In the above-described embodiment, the case where the plate-shaped insulating member 22 is fixed to the wedge 20 side of the crimper block 21 and integrated with the crease block 21 has been described. As shown in (1), the plate-shaped insulating member 22 may be integrally formed with the cribpage block 21. In this case, the ventilation hole 27 formed in the portion corresponding to the plate-shaped insulating member 22 is located on the wedge 20 side of the ventilation hole 28 formed in the crease block 21 (the rectangular ventilation hole 3).
A square is formed so as to coincide with 1).

When the roughness of the contact surface of the crimper block 21 with the wedge 20 increases due to long-term operation, the crevice block 21 on the wedge 20 side, that is, the portion corresponding to the plate-shaped insulating member 22 is cut off. A new plate-shaped insulating member corresponding to the thickness of the shaved portion may be fixed to the wedge 20 side of the crease block 21 with an adhesive or the like.

As shown in FIG. 13, the wedge 20 and the crease page block 21 are divided into a plurality in the axial direction. Therefore, in consideration of the easiness of replacement of the plate-shaped insulating member 22, instead of providing one plate-shaped insulating member 22 for one piece of the crevice block 21, it is necessary to provide It is preferable to provide one plate-like insulating member 22. In this case, the plate-shaped insulating member 2
2 and the ventilation hole 26 formed in the wedge 20 and the ventilation hole 28 formed in the crease block 21 may be displaced in the axial direction. 34 and the chestnut block 21 are fixed with an adhesive or the like. FIG. 13 shows a case where ten wedges 20 and three crease block 21 are provided for one plate-shaped insulating member 22.

[0040]

According to the present invention, the plate-like insulating member is fixed to the wedge-side surface of the clicker block, and only the plate-like insulating member is replaced when the clicker block is repaired. When the amount of wear on the surface of the wedge side of the crease block increases due to long-term operation, the crease block can be easily repaired.

Further, according to the present invention, a plate-shaped insulating member provided with a hole communicating the hole provided in the wedge and the hole provided in the crease block is provided between the wedge and the crease block. The arrangement prevents the winding conductor and the wedge from being grounded by the conductive foreign matter.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a turbine generator according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an external configuration of a rotor of FIG. 1;

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is an enlarged sectional view of a portion IV in FIG. 3;

FIG. 5 is a plan view showing a configuration of a clear page block in FIG. 4;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a transparent plan view showing a configuration of the plate-shaped insulating member of FIG. 4 in a state of being stacked on a wedge side of a crimper block.

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7;

FIG. 9 is a cross-sectional view showing a method of fixing a plate-shaped insulating member to a crimper block.

FIG. 10 is a cross-sectional view showing a method of fixing a plate-shaped insulating member to a crimper block.

FIG. 11 is a plan view showing the configuration of a clear page block according to another embodiment of the present invention.

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11;

FIG. 13 is a sectional view showing an arrangement of a wedge, a plate-shaped insulating member, and a crease block according to another embodiment of the present invention.

[Explanation of symbols]

1 ... stator frame, 2 ... stator core, 3 ... rotor core, 4 ...
Rotating shaft, 5 ... stator winding, 6 ... rotor winding, 7 ... retaining ring, 8 ... cooling fan, 9 ... bearing device, 10 ...
Bracket, 11 cooler, 12 current collector, 13 terminal, 14 slot, 15 plate conductor, 16 turn insulation, 17 winding conductor, 18 slot armor, 1
9 bottom sole, 20 wedge, 21 crease block, 22 plate-shaped insulating member, 23 cooling gas ventilation path, 2
4, 30: long hole, 25: communication groove, 26, 27, 28, 3
1 ... ventilation holes, 29 ... joining pins, 32 ... pins, 33 ... screws, 34 ... end portions.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H604 AA05 BB04 BB10 BB14 CC02 CC05 CC13 CC16 DA24 DB30 PB03 QC04 QC09 5H615 AA01 AA03 AA05 BB02 BB07 BB14 PP02 PP08 PP13 PP19 QQ03 RR01 SS18 TT03 TT26

Claims (8)

[Claims] 1. A winding conductor housed in a plurality of slots of a rotor core, a wedge housed in the slot and disposed on the outer peripheral side of the rotor core with respect to the winding conductor, and housed in the slot. In a rotating electric machine having a rotor having a crimper block disposed between the winding conductor and the wedge, an insulation member is fixed to a surface of the crimper block on the wedge side. Rotating electric machine. 2. A winding conductor housed in a plurality of slots of a rotor core, a wedge housed in the slot and disposed on an outer peripheral side of the rotor core with respect to the winding conductor, and housed in the slot. A rotor provided with a clippage block disposed between the winding conductor and the wedge, wherein the crippage block is provided with an elongated hole provided in the winding conductor and the wedge. In the rotating electric machine provided with a hole communicating with a hole having a different shape from the long hole, a hole communicating with a hole provided on the wedge and a hole provided on the crease block is provided. A rotating electric machine, wherein an insulating member is arranged between the wedge and the click block. 3. A winding conductor housed in a plurality of slots of a rotor core, a wedge housed in the slot and disposed on an outer peripheral side of the rotor core with respect to the winding conductor, and housed in the slot. A rotor provided with a clippage block disposed between the winding conductor and the wedge, wherein the crippage block is provided with an elongated hole provided in the winding conductor and the wedge. In the rotating electric machine provided with a hole communicating with a hole having a different shape from the long hole, a hole communicating with a hole provided on the wedge and a hole provided on the crease block is provided. A rotating electric machine, wherein an insulating member is fixed to a surface on the wedge side of the Cripage block. 4. The rotating electric machine according to claim 1, wherein said insulating member is a plate having a thickness of 0.2 to 5.0 mm. 5. The hole provided in the insulating member is a circle or a square having the same diameter as the hole provided in the wedge with an error of 5 mm or less and the same diameter with an error of 5 mm or less. The rotating electric machine according to claim 2 or 3, wherein: 6. The insulating member is a laminate of glass fibers impregnated with a heat-resistant resin, and has a surface roughness of 2.5 μm or less on a contact surface with the wedge. Item 4. The rotating electric machine according to any one of Items 1 to 3. 7. The insulating member according to claim 1, wherein the insulating member is formed by using aramid fiber paper, and a Teflon (registered trademark) resin is applied to a contact surface with the wedge. 3. The rotating electric machine according to any one of 3. 8. A method for repairing a rotating electric machine having a rotor in which a winding conductor, a crease block, and a wedge are housed in a plurality of slots of a rotor core in order toward an outer peripheral side of the rotor core. A method of repairing a rotating electric machine, wherein when repairing a page block, only an insulating member fixed to the wedge-side surface of the clear page block is replaced.