TWI528688B - Electrical machine and wind power generating system - Google Patents

Description

Rotating electric machine and wind power generation system with rotating electric machine

The present invention relates to a rotary electric machine using a heat pipe and a wind power generation system including the rotary electric machine.

In recent years, attention to natural energy has increased due to global warming, high fuel prices, and power crisis. In wind power generation using wind power, which is one of natural energy sources, the electric energy of the wind is converted into electric energy by a rotating electric machine of a generator.

The rotating electric machine generates heat due to copper loss or iron loss during operation, and the internal temperature rises. The rise of the internal temperature of the rotating electrical machine is caused by the deterioration of the insulation of the rotating electrical machine or the insulation of the iron core. Since it is related to the low life of the rotating electrical machine, in order to prevent this, it becomes necessary to cool the rotating electrical machine.

One of the cooling methods of the rotary electric machine is exemplified by a heat pipe. In this example, the evaporation portion of the heat pipe is buried inside the rotary electric machine that needs to be cooled, and the heat generated inside the rotary electric machine is moved from the evaporation portion of the heat pipe to the condensation portion of the heat pipe to perform the rotation motor. cold but.

Next, in order to dispose the condensation portion of the heat pipe to the outside of the casing of the low-temperature rotating electrical machine, high cooling performance can be obtained in terms of cooling of the rotary electric machine.

In the technique of the method of the present invention, in the technique of the present invention, in the technique of the present invention, in the technique disclosed in Japanese Laid-Open Patent Publication No. SHO 56-141566, the outer portion of the casing that forms the connected rotating electrical machine is provided between the rotating shaft of the rotating electrical machine and the bearing. The member of the through hole inside the casing is configured to receive the heat generated inside the casing of the rotating electrical machine by inserting a heat pipe formed in the through hole formed in the casing, and then evaporating in the evaporation portion of the heat pipe. The condensed portion of the heat pipe in which the actuating fluid is cooled and condensed is disposed outside the casing of the rotating electrical machine.

[Previous Technical Literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 56-141566

However, in the technique disclosed in Japanese Laid-Open Patent Publication No. SHO 56-141566, the heat pipe disposed in the rotary electric machine is disposed along the axial direction of the rotating shaft through a gap between the rotating shaft and the bearing. The structure is such that the condensation portion of the heat pipe disposed outside the frame becomes a parallel Set in the shape of the rotating shaft.

Since the condensed portion of the heat pipe disposed outside the casing is disposed in the shape of the rotating shaft as described above, the actuating fluid cooled and condensed by the condensed portion of the heat pipe becomes difficult to flow into the casing disposed in the rotating electrical machine. The evaporation portion of the heat pipe of the portion reduces the cooling performance of the heat pipe, so the cooling efficiency of the rotary electric machine using the heat pipe has to be lowered.

An object of the present invention is to provide a rotary electric machine that can improve the cooling performance of a heat pipe that cools a rotating electrical machine, and that suppresses an increase in temperature of a rotating member of a rotating electrical machine, and a wind power generation system including the same.

The rotary electric machine according to the present invention comprises: a fixing member having a fixing member winding, a rotating member having a rotating member winding disposed on an inner diameter side of the fixing member via a gap with the fixing member, and being disposed to an inner diameter of the rotating member a rotating shaft on the side, a plurality of bearings supporting the rotating shaft, and a heat pipe; wherein: a shaft supporting member for forming a through hole for supporting the rotating shaft is disposed between the rotating shaft and one of the bearings; The through hole formed in the shaft support member and the sealing member sealed by the through hole cover the heat pipe inside the casing from the outside of the casing of the rotating electrical machine; and the rotating member disposed inside the casing of the rotating electrical machine is arranged The evaporation portion of the heat pipe in which the operating fluid of the heat pipe evaporates, and the condensation portion of the heat pipe that condenses the operating fluid of the heat pipe is disposed outside the casing of the rotating electrical machine; and the bearing and the rotating shaft disposed on one side are disposed A sealing member that seals between the through holes of the aforementioned shaft support member.

A wind power generation system including a rotating electric machine according to the present invention, wherein: a wind turbine that receives wind and a rotating shaft that is connected to the wing by a hub to convert energy of wind received by the wing into a wind energy; The rotation energy of the rotating shaft is transmitted to the rotating electric machine provided in the nacelle through the speed increasing mechanism provided in the nacelle, and the rotating energy of the rotating shaft is converted into electric energy of the rotating electric machine; and the tower supporting the nacelle is provided. A rotary electric machine according to any one of claims 1 to 8 is used as a rotary electric machine provided in the aforementioned nacelle.

According to the present invention, it is possible to realize a rotary electric machine that suppresses the temperature rise of the rotating shaft of the rotating electrical machine and that suppresses the temperature rise of the rotating shaft of the rotating electrical machine, and a wind power generating system including the rotating electric machine.

1‧‧‧Rotating motor

2‧‧‧Fixed parts

3‧‧‧Rotating parts

4‧‧‧Rotary axis

5‧‧‧heat pipe

5a‧‧‧Evaporation Department

5b‧‧‧Condensation

6‧‧‧Axis support parts

6b‧‧‧ Protrusion

7‧‧‧ Sealing parts

7a‧‧‧Bolt joint

7b‧‧‧Departure

7c‧‧‧ hole

8a‧‧‧ Bearing

8b‧‧‧ bearing

9‧‧‧through holes

10‧‧‧Fixed parts winding

11‧‧‧Rolling of rotating parts

12‧‧‧heat pipe setting hole

13‧‧‧Insulation layer

14‧‧‧Heat fins

15‧‧‧Fixed parts

21‧‧‧ nacelle

22‧‧‧ Tower

23‧‧‧ wings

24‧‧ ‧ hub

25‧‧‧Speed increasing mechanism

Fig. 1 is a cross-sectional view showing the structure of a rotary electric machine according to a first embodiment of the present invention in the axial direction.

Fig. 2 is a side view showing a shaft supporting member of the rotary electric machine according to the first embodiment of Fig. 1;

Fig. 3 is a side view showing a sealing member of the rotary electric machine according to the first embodiment of Fig. 1;

Fig. 4 is a side view showing both the shaft support member and the seal member of the rotary electric machine according to the first embodiment of Fig. 1;

Fig. 5 is a cross-sectional view showing the rotary electric machine in the axial direction of the operation of the rotary electric machine in the first embodiment of Fig. 1 .

FIG. 6 is a cross-sectional view of the rotary electric machine in the axial direction showing the state in which the rotary electric machine of the first embodiment of FIG. 1 is provided with a sealing member.

Fig. 7 is a cross-sectional view showing the structure of a rotary electric machine according to a second embodiment of the present invention in the axial direction.

Fig. 8 is a cross-sectional view showing the structure of a rotary electric machine according to a third embodiment of the present invention in the axial direction.

Fig. 9 is a cross-sectional view showing the structure of a rotary electric machine according to a fourth embodiment of the present invention in the axial direction.

Fig. 10 is a cross-sectional view showing the structure of a rotary electric machine according to a fifth embodiment of the present invention in the axial direction.

Fig. 11 is a cross-sectional view showing the structure of a rotary electric machine according to a sixth embodiment of the present invention in the axial direction.

FIG. 12 is a schematic configuration diagram showing a wind power generation system including a rotary electric machine according to a seventh embodiment of the present invention.

Hereinafter, a rotary electric machine including a heat pipe according to an embodiment of the present invention and a wind power generation system including the rotary electric machine will be described with reference to the drawings.

[Example 1]

The first aspect of the present invention is described with reference to FIGS. 1 to 6 . The rotary electric machine of the heat pipe of the embodiment.

Fig. 1 shows a thermal guide provided with a first embodiment of the present invention A cross-sectional view of the rotary motor of the tube in the axial direction. The rotary electric machine 1 of the present embodiment shown in FIG. 1 includes a fixing member 2 that constitutes the rotary electric machine 1 inside the casing of the rotary electric machine 1, and a gap between the fixing member 2 and the inner diameter of the fixing member 2 The side rotating member 3 is wound in a two-layer three-phase fixing member winding 10 provided in a groove (not shown) of the fixing member 2, and in a groove provided in the rotating member 3 (not shown) A rotating member winding 11 wound into two layers of three phases.

Three-phase stator winding 10 and three-phase rotating parts winding 11, each phase is arranged at an electrical interval of 120 °. Further, the rotary member 3 is not limited to the above-described winding type rotary member including the rotary member winding 11, and may be a permanent magnet type rotary member or a cage type rotary member.

The rotating member 3 is mounted to the rotating shaft 4 disposed in the shaft The bearing 8a having a large diameter is provided at one of the shaft ends of the rotating shaft 4, and the bearing 8b having a small diameter is provided at the other axial end of the rotating shaft 4, and the bearing 8a and the bearing 8b are supported by the bearing 8b and the bearing 8b. The aforementioned rotating member 3 is rotatable integrally with the rotating shaft 4.

Moreover, the rotation is set inside the frame of the rotary electric machine 1 Inside the rotor 3, the evaporation portion 5a of the heat pipe 5 is disposed in the hollow heat pipe installation hole 12 therein, and a plurality of the heat exchangers are disposed in a ring shape along the axial direction of the rotor 3.

Next, it is set inside the casing of the rotary electric machine 1 The inside of the rotating member 3 is provided with a plurality of heat pipe setting holes 12 inside, It is disposed such that the evaporation portion 5a of the heat pipe 5 that absorbs heat generated by the rotating member 3 and evaporates by the actuating fluid sealed in the heat pipe 5 in contact with the rotating member 3, and the rotating member 3 parallel.

Actuating fluid evaporated at the evaporation portion 5a of the heat pipe 5 The condensation portion 5b of the heat pipe 5 to be cooled and condensed is disposed outside the casing of the rotary electric machine 1.

Then, the condensation portion 5b of the heat pipe 5 is cooled and condensed. The actuating fluid is returned to the evaporation portion 5a of the heat pipe 5 via a capillary phenomenon caused by a capillary structure (not shown) for recirculating the liquid formed on the inner wall of the heat pipe 5. In other words, the heat pipe 5 is disposed to penetrate from the outside of the casing of the rotating electrical machine to the inside of the casing.

Set to: the rotation of the rotating electrical machine 1 on the non-load side A shaft support member 6 having a through hole 9 on the outer peripheral side of the rotating shaft 4 between the shaft end portion of the rotating shaft 4 and the bearing 8a is integrally provided with the rotating shaft 4 and supports the rotating shaft 4; The bearing 8a is provided to the outer peripheral side of the shaft support member 6 and supported so that the shaft support member 6 is integrally rotatable with the rotary shaft 4.

2, the rotary electric machine 1 constituting the present embodiment is shown. A side view of the shaft supporting member 6 disposed at one of the shaft end portions of the rotating shaft 4. As shown in Fig. 2, the cross-sectional area of the through hole 9 formed in the shaft support member 6 is larger than that of the heat pipe 5, and the condensed portion 5b of the heat pipe 5 is disposed to the rotary electric machine 1 The outside of the casing is such that the steaming of the heat pipe 5 provided in the heat pipe providing hole 12 of the rotating member 3 provided inside the casing of the rotary electric machine 1 through the through hole 9 The hair portion 5a, the evaporated operating fluid, can be supplied to the condensation portion 5b which is positioned outside the casing of the rotary electric machine 1 and condenses the operating fluid of the heat pipe 5.

Next, the heat pipe 5 outside the frame of the rotating electrical machine 1 The position of the condensation portion 5b is such that it is disposed on the radially inner side of the position of the evaporation portion 5a of the heat pipe 5, and the centrifugal force can be applied to the heat pipe 5 from the condensation portion 5b of the heat pipe 5. The circulation of the actuating fluid of the evaporation portion 5a has the advantage of improving the cooling performance of the heat pipe 5; wherein the heat pipe is disposed in the heat pipe setting hole 12, and the heat pipe is provided with the rotation of the inside of the frame of the rotary electric machine 1 The axis of the rotating shaft 4 inside the piece 3 is parallel.

In order to make the rotary electric machine 1 of the present embodiment completely closed The sealing member 7 that seals the through hole 9 of the shaft support member 6 provided between the shaft end portion of one of the rotating shafts 4 and the bearing 8a is provided on the outer side in the axial direction of the shaft supporting member 6, and is sealed. The shaft supports the through hole 9 of the part 6.

In Fig. 3, the rotary electric machine 1 constituting the present embodiment is shown. A side view of the sealing member 7 in which the through hole 9 of the shaft supporting member 6 disposed at one of the shaft end portions of the rotating shaft 4 is sealed. 3 is a view showing a portion 7 in which the sealing member 7 is divided, and as shown in FIG. 3, a hole 7c into which the heat pipe 5 is inserted is formed in the sealing member 7, and the heat pipe 5 passes through the hole 7c, and can be placed in the condensation portion 5b of the heat pipe 5. The evaporation portion 5a that supplies the cooling and condensing actuating fluid to the evaporation portion 5a of the heat pipe 5 to evaporate is disposed to the inside of the rotating member 3 formed inside the casing of the rotary electric machine 1 The tube is provided with a hole 12.

4, it is shown that the sealing member 7 is sealed and formed in the foregoing. The state of the through hole 9 of the shaft support member 6. The same number of sealing members 7 as the number of through holes 9 formed in the shaft support member 6 are prepared, and the through holes 9 of the shaft support member 6 are individually sealed.

Further, the plug joint portion 7a is formed in the seal member 7 so that It is fitted to the through hole 9 of the shaft support member 6.

Constructing the bolting of the aforementioned sealing member 7 as shown in FIG. The joint portion 7a is fitted to the through hole 9 formed by the shaft support member 6 disposed between the bearing 8a having a large diameter and one of the large diameters.

Next, the description will be given regarding setting the heat pipe 5 to constitute the present embodiment. The working procedure of the rotary member 3 of the rotary electric machine 1 is exemplified.

In the rotary electric machine 1 of the present embodiment, it is located in the installation The through hole 9 formed by the shaft support member 6 provided at one of the shaft end portions of the rotating shaft 4 is integrally provided with a sealing member 7 for sealing the through hole 9; the sealing member 7 is as shown in the figure 3 and the plural configuration is divided as shown in FIG. 4, so that the assembly property is improved when the heat pipe 5 is provided to the rotary member 3 of the rotary electric machine 1. Hereinafter, description will be made using FIGS. 5 to 6 .

Figure 5 shows the arrangement of the heat pipe 5 to constitute the embodiment. A method of setting the heat pipe 5 of the rotary member 3 of the rotary electric machine 1.

As shown in Fig. 5, the heat of the end of the heat pipe 5 is taken The evaporating portion 5a of the duct 5 is provided by a shaft end portion of one of the shaft ends of the rotating shaft 4 in which the rotating member 3 constituting the rotating electric machine 1 is attached. The through hole 9 of the support member 6 is provided to a heat pipe installation hole 12 formed in the inside of the rotary member 3 in parallel with the axis of the rotary shaft 4.

When the heat pipe 5 is installed, the sealing shaft is supported Therefore, the space in which the sealing member 7 of the through hole 9 of the support member 6 is removed from the through hole 9 can be widely used in the through hole 9 formed by the shaft support member 6, so that even the curved heat pipe 5 can be easily used. It is placed in the casing of the rotary electric machine 1.

Therefore, the heat pipe 5 which becomes the end of the heat pipe 5 can be taken The evaporation portion 5a is provided through the through hole 9 of the shaft support member 6 to the heat pipe installation hole 12 formed inside the rotor 3.

6, the heat pipe 5 is disposed to constitute the embodiment. After the rotary member 3 of the rotary electric machine 1, the through hole 9 of the shaft support member 6 provided at the shaft end portion of one of the rotary shafts 4 mounted in the integral rotary member 3 is sealed and sealed. The setting method.

As described using FIG. 5, the rotating electric power in this embodiment In the machine 1, after the evaporation portion 5a of the heat pipe 5 is provided in the heat pipe installation hole 12 of the rotary member 3, next, as shown in Fig. 6, the holes 7c constituting the plurality of sealing members 7 are respectively passed through the heat pipe 5 The sealing member 7 is slid along the heat pipe 5 to the position of the through hole 9 of the shaft support member 6, and the sealing member 7 is fitted into the through hole 9 of the shaft support member 6, and the plurality of sealing members 7 are formed by division. The through hole 9 of the aforementioned shaft support member 6 is sealed.

A split is embedded in the through hole 9 of each of the shaft support members 6. A plurality of sealing members 7 are formed to seal the through holes 9 of the shaft supporting member 6 For this reason, the curved heat pipe 5 can be easily disposed to pass through the through hole 9 of the shaft supporting member 6, wherein the through hole of the shaft supporting member is installed in a rotating member 3 constituting the rotary electric machine 1 The shaft end of one of the rotating shafts 4.

Assume that the sealed part 7 is not divided as shown in FIG. When the plurality of pieces are cut, the direction of the heat pipe 5 is different at each of the installation positions, so that it is difficult to slide the sealing member 7 along the heat pipe 5 to the position of the through hole 9 of the shaft support member 6, by sealing It is inconvenient for the part 7 to seal the through hole 9.

In the case of the above-described rotary electric machine 1 of the present embodiment, When the heat pipe 5 and the hole 7c of the sealing member 7 have a positional error and the sealing member 7 cannot be fitted into the through hole 9, the heat pipe 5 and the sealing member 7 can be corrected so that the operation of the bending heat pipe 5 can be performed. The position of the hole 7c is wrong.

Further, in the case where the heat pipe 5 is unsuitable, the evaporation portion 5a of the heat pipe 5 can be easily removed from the rotor 3 in the reverse order of the above-described installation work, and exchanged with the heat pipe 5 which is not unsuitable.

According to the present embodiment, it is possible to realize a rotary electric machine that enhances the cooling performance of the heat pipe that cools the rotary electric machine and suppresses the temperature rise of the rotating member.

[Embodiment 2]

Next, a rotary electric machine including the heat pipe according to the second embodiment of the present invention will be described with reference to Fig. 7 .

FIG. 7 shows the rotating electric power provided with the heat pipe of the embodiment. A cross-sectional view of the axis of the machine. The rotary electric machine 1 of the present embodiment shown in FIG. 7 has the same basic configuration as that of the rotary electric machine 1 of the first embodiment shown in FIGS. 1 to 6, and therefore the description of the common configuration of the two is omitted. The following only describes the different components.

The rotary electric machine 1 of the embodiment shown in FIG. The shape of the support member 6 and the sealing member 7 is different from that of the rotary electric machine 1 of the first embodiment.

In the rotary electric machine 1 of the present embodiment, the rotation is set at the rotation The inner side of the sealing member 7 that seals the through hole 9 of the shaft support member 6 between the shaft end portion of the shaft 4 and the bearing 8a, that is, the sealing member 7 facing the outside of the casing of the rotary electric machine 1 The step portion 7b is formed on the side surface.

Side of the step portion 7b formed from the side surface of the sealing member 7 A bolt (not shown) is attached to the outer diameter side in the radial direction, and the outer peripheral side of the seal member 7 in the radial direction is fixed to the radius of the shaft support member 6 facing the through hole 9 of the shaft support member 6 by the bolt. Direction on the inner circumference side.

As a result, the axial direction of the bolt attached to the sealing member 7 In the same direction as the centrifugal force acting on the bolt, a shear load can be prevented from being applied in a direction perpendicular to the axial direction of the bolt, and the through hole formed in the shaft support member 6 can be sealed by the sealing member 7. The reliability of the sealing member 7 of 9 is provided between the shaft end portion of one of the rotating shafts 4 of the rotary electric machine 1 and the bearing 8a.

Further, the aforementioned shaft support member 6 is constructed as shown in FIG. A projection 6b that protrudes outward in the radial direction is provided on the side of the rotating shaft 4 of the shaft support member 6, and when the sealing member 7 is slid toward the inside of the casing of the rotary electric machine 1 in the through hole 9 of the shaft support member 6, The projection 6b of the shaft support member 6 is actuated as a brake to prevent the sealing member 7 from entering the inside of the casing of the rotary electric machine 1, so that the alignment of the shaft support member 6 and the sealing member 7 becomes easy.

Also with this embodiment, it is possible to realize a rotary electric machine which improves the cooling performance of the heat pipe for cooling the rotary electric machine and suppresses the temperature rise of the rotary member.

[Example 3]

Next, a rotary electric machine including the heat pipe according to the third embodiment of the present invention will be described with reference to Fig. 8 .

Fig. 8 is a cross-sectional view in the axial direction of the rotary electric machine including the heat pipe of the embodiment. The rotary electric machine 1 of the present embodiment shown in FIG. 8 has a basic configuration similar to that of the rotary electric machine 1 of the first embodiment shown in FIGS. 1 to 6, and therefore the description of the common configuration of the two is omitted. The following only describes the different components.

In the rotary electric machine 1 of the present embodiment shown in Fig. 8, the condensation portion 5b of the heat pipe 5 is passed through the hole 7c of the sealing member 7 of the heat pipe 5, as shown in Fig. 8 with the axis of the rotary shaft 4. The heart is parallel and extended to the outside of the frame of the rotary electric machine 1; the actuating fluid can be supplied to the condensation portion 5b of the heat pipe 5 which is cooled and condensed; wherein the actuating fluid is the evaporation portion 5a of the heat pipe 5 Evaporation; the heat pipe is, The rotary member that is disposed inside the casing of the rotary electric machine 1 by sealing the sealing member 7 with the through hole 9 of the shaft support member 6 provided between the shaft end portion of one of the rotating shafts 4 and the large diameter bearing 8a The heat pipe of 3 is provided with a hole 12.

In the rotary electric machine 1 of the present embodiment, by employing the foregoing The heat pipe 5 is configured such that the condensation portion 5b of the heat pipe 5 positioned outside the casing of the rotary electric machine 1 is disposed in parallel with the rotation shaft 4 so as to be disposed outside the casing of the rotary electric machine 1 The condensation portion 5b of the heat pipe 5 is formed to be parallel to the rotation shaft 4, and the cooling performance of the heat pipe 5 is further improved.

Moreover, in the rotary electric machine 1 of the present embodiment, by The condensing portion 5b of the heat pipe 5 positioned outside the casing of the rotary electric machine 1 is disposed in parallel with the rotating shaft 4, and the condensing portion 5a of the heat pipe 5 can be disposed between the rotating shaft 4 and the bearing 8a. Since the sealing member 7 sealed by the through hole 9 of the shaft support member 6 is disposed on the inner diameter side of the rotor 3, the outer diameter of the shaft support member 6 and the seal member 7 can be reduced, and the rotary electric machine 1 can be miniaturized.

Moreover, by cooling the heat pipe of the rotating rotating electrical machine A rotating motor that suppresses the temperature rise of the rotating member is possible in a manner that can be lifted.

Also by this embodiment, a cooling rotation can be realized A rotary electric machine in which the cooling performance of the heat pipe of the motor is improved and the temperature of the rotating member is suppressed from rising.

[Example 4]

Next, a rotary electric machine including the heat pipe according to the fourth embodiment of the present invention will be described with reference to Fig. 9 .

Fig. 9 is a cross-sectional view in the axial direction of the rotary electric machine including the heat pipe of the embodiment. The rotary electric machine 1 of the present embodiment shown in FIG. 9 has a basic configuration similar to that of the rotary electric machine 1 of the first embodiment shown in FIGS. 1 to 6, and therefore the description of the common configuration of the two is omitted. The following only describes the different components.

In the rotary electric machine 1 of the present embodiment shown in FIG. 9, the sealing member 7 for sealing the through hole 9 of the shaft support member 6 provided between the shaft end portion of one of the rotating shafts 4 and the bearing 8a is The heat insulating layer 13 made of resin, ceramics or the like is formed on the side facing the inside of the casing of the rotary electric machine 1 to which the sealing member 7 of the through hole 9 is sealed, and is formed in the sealing member 7 The heat insulating layer 13 seals the through hole 9.

The heat insulating layer 13 formed in the sealing member 7 prevents heat radiated from the condensation portion 5a of the heat pipe 5 by the above-described configuration, and is transmitted to the bearing 8a through the sealing member 7 and the shaft support member 6, thereby suppressing the bearing 8a. The temperature rises; wherein the heat pipe is a heat pipe setting hole 12 formed by the rotary member 3 disposed inside the frame of the rotary electric machine 1.

As a result, the temperature rise of the lubricating oil of the bearing 8a can be suppressed, so that the effect of improving the life of the bearing 8a is exhibited.

Also by the present embodiment, it is possible to improve the cooling performance of the heat pipe for cooling the rotating electrical machine and suppress the temperature rise of the rotating member Rotating motor.

[Example 5]

Next, a rotary electric machine including the heat pipe according to the fifth embodiment of the present invention will be described with reference to Fig. 10 .

Fig. 10 is a cross-sectional view in the axial direction of the rotary electric machine including the heat pipe of the embodiment. The rotary electric machine 1 of the present embodiment shown in FIG. 10 has a basic configuration similar to that of the rotary electric machine 1 of the first embodiment shown in FIGS. 1 to 6, and therefore the description of the common configuration of the two is omitted. The following only describes the different components.

In the rotary electric machine 1 of the present embodiment shown in FIG. 10, the heat dissipation fins 14 are separately provided in the respective condensation portions 5b of the heat pipes 5 disposed outside the casing of the rotary electric machine 1.

Further, in the rotary electric machine 1 of the present embodiment, the heat radiating fins 14 may be provided in the condensation portion 5b of the heat pipe 5; wherein the condensation portion of the heat pipe is disposed in the frame of the rotary electric machine 1 The position of the condensation portion 5b of the heat pipe 5 disposed outside the body is further proportional to the position of the evaporation portion 5a of the heat pipe 5 disposed in the rotor 3 inside the casing of the rotary electric machine 1 by the rotary electric machine 1 Radius direction inner diameter side.

The heat-dissipating portion 5b that cools the heat pipe 5 disposed outside the casing of the rotary electric machine 1 is provided with the heat-dissipating fins 14, so that the heat dissipation of the condensation portion 5a of the heat pipe 5 can be further improved. The cooling performance of the duct 5 is improved.

Also by this embodiment, a cooling rotation can be realized A rotary electric machine in which the cooling performance of the heat pipe of the motor is improved and the temperature of the rotating member is suppressed from rising.

[Embodiment 6]

Next, a rotary electric machine including the heat pipe according to the sixth embodiment of the present invention will be described with reference to Fig. 11 .

Fig. 11 is a cross-sectional view in the axial direction of a rotary electric machine including the heat pipe of the present embodiment. The rotary electric machine 1 of the present embodiment shown in Fig. 11 has a basic configuration similar to that of the rotary electric machine 1 of the fifth embodiment shown in Fig. 10, and therefore the description of the common configuration of the two is omitted. Explain the different components.

In the rotary electric machine 1 of the present embodiment shown in FIG. 11, the fixing member 15 is disposed on the inner side in the radial direction of the heat dissipation fin 14 so as to be in contact with the radially inner side of the heat dissipation fin 14; The sheet is a condensation portion 5b provided in the heat pipe 5, and the heat pipe is disposed outside the casing of the rotary electric machine 1.

The heat radiating fins 14 provided in the condensation portion 5b of the heat pipe 5 may be configured to be coupled to the shaft end portion of the rotating shaft 4.

The fixing fins 15 are fixed to the inner side in the radial direction of the respective fins 14 provided in the condensation portion 5b of the heat pipe 5, and the heat dissipating fins 14 provided to the condensation portion 5b of the heat pipe 5 can be fixed and fixed. The part 15 is formed in a unitary structure.

Next, the condensation portion 5b of the heat pipe 5 is fixed to the fixing member 15 through the heat dissipation fins 14 provided in the condensation portion 5b of the heat pipe 5. In this way, the heat pipe 5 is prevented from being bent outward in the radial direction by the centrifugal force, and the reliability of the heat pipe 5 can be improved.

Further, the fixing member 15 is not limited to the inner diameter side of the heat radiating fin 14 in the radial direction, and may be provided to the outer diameter side of the heat radiating fin 14 in the radial direction; wherein the heat radiating fin is provided outside the casing of the rotary electric machine 1 The condensation portion 5b of the heat pipe 5 to be disposed.

Also with this embodiment, it is possible to realize a rotary electric machine which improves the cooling performance of the heat pipe for cooling the rotary electric machine and suppresses the temperature rise of the rotary member.

[Embodiment 7]

Next, a wind power generation system including a rotary electric machine including the heat pipe according to the seventh embodiment of the present invention will be described with reference to Fig. 12 .

Fig. 12 is a schematic configuration diagram of a wind power generation system including a rotating electrical machine, which is provided with the heat pipe of the present embodiment. In the wind power generation system including the rotary electric machine shown in FIG. 12, the rotary electric machine is provided with the heat pipe of the present embodiment, and can be used in the first embodiment to the sixth embodiment shown in FIGS. 1 to 11. Since the rotary electric machine 1 of any of the embodiments is omitted, the description about the rotary electric machine 1 used in the wind power generation system of the present embodiment will be omitted.

Fig. 12 shows an embodiment of a wind power generation system including the rotary electric machine 1 of the first embodiment to the sixth embodiment.

As shown in FIG. 12, the wind power generation system of the present embodiment, A gearbox 25 and a rotary electric machine 1 are disposed in the nacelle 21, and the nacelle 21 is supported by the tower 22.

Utilizing a plurality of wings 23 and with the wings 24 The connected rotating shaft 4 constitutes a windmill, and the wind 23 is subjected to wind, and the wind energy is converted into rotational energy to rotate the rotating shaft 4.

Next, it is configured to change from the energy of the wind by the wing 23. The rotation energy is coupled to the rotating shaft 4, and the rotation speed of the rotating shaft 4 is increased by a speed increasing mechanism 25 provided in the nacelle 21 to a rotation speed suitable for power generation, and is transmitted through the speed increasing mechanism 25. The rotation energy of the rotary shaft 4 is converted into electric energy of the rotary electric machine 1 by the rotary electric machine 1 provided in the nacelle 21.

Each rotation shown in the first embodiment to the sixth embodiment The motor, which is the wind power generation system of the present embodiment, is provided as a rotary electric machine 1 disposed in the nacelle 21.

Furthermore, the wind power generation system of the present embodiment is not limited to The wind power generation system shown in Fig. 12 can also be applied to a water turbine, an engine, or a turbine.

According to this embodiment, a wind power can be realized The electric system that enhances the cooling performance of the heat pipe that cools the rotating electrical machine and suppresses the temperature rise of the rotating member.

1‧‧‧Rotating motor

2‧‧‧Fixed parts

3‧‧‧Rotating parts

4‧‧‧Rotary axis

5‧‧‧heat pipe

5a‧‧‧Evaporation Department

5b‧‧‧Condensation

6‧‧‧Axis support parts

7‧‧‧ Sealing parts

7c‧‧‧ hole

8a‧‧‧ Bearing

8b‧‧‧ bearing

9‧‧‧through holes

10‧‧‧Fixed parts winding

11‧‧‧Rolling of rotating parts

Claims (8)

A rotary electric machine comprising: a fixing member having a fixing member winding, a rotating member having a rotating member winding disposed to an inner diameter side of the fixing member via a gap with the fixing member, and being disposed on an inner diameter side of the rotating member a rotating shaft, a plurality of bearings supporting the rotating shaft, and a heat pipe; wherein a shaft supporting member for forming a through hole for supporting the rotating shaft is provided between the rotating shaft and one of the bearings; Providing a through hole formed in the shaft support member and a heat sealing tube that covers the inside of the casing from a casing outside the casing of the rotating electrical machine by a sealing member that seals the through hole; and is inside the casing of the rotating electrical machine The rotating member of the portion is disposed with an evaporation portion of the heat pipe that evaporates the operating fluid of the heat pipe, and a condensation portion of the heat pipe that condenses the operating fluid of the heat pipe is disposed outside the frame of the rotating electrical machine; Providing that the through hole of the shaft support member disposed between the one of the bearings and the rotating shaft is sealed a sealing member; the heat pipe between the condensation portion and the evaporation portion of the heat pipe is bent, and the condensation portion of the heat pipe is disposed in a radial direction of the evaporation portion of the heat pipe Diameter side. The rotary electric machine according to claim 1, wherein the through hole formed in the shaft support member is divided into a plurality of pieces, and the sealing member is divided into a plurality of pieces, and the seal is divided into a plurality of seals. The parts are individually sealed by the plurality of through holes that are divided into a plurality of pieces. The rotary electric machine according to claim 1 or 2, wherein the sealing member forms a bolt joint portion, and the seal member is fitted to the through hole of the shaft support member disposed between the one of the bearings and the rotating shaft . The rotary electric machine according to claim 1 or 2, wherein the stepped portion is formed on a side surface of the sealing member, and the sealing member is fixed to the shaft support member by bolts from the step portion side. The rotary electric machine according to claim 1 or 2, wherein a heat insulating layer is formed on an inner side of the frame body of the rotary electric machine of the sealing member, the sealing member being disposed to be disposed between the bearing disposed at one of the bearings and the rotating shaft The through hole of the shaft support member is sealed. The rotary electric machine according to claim 1 or 2, wherein the heat dissipating fin is provided in the condensation portion of the heat pipe outside the frame of the rotating electric machine. The rotary electric machine according to claim 6, wherein the heat dissipating fin is fixed to the inner side or the outer side of the heat dissipating fin provided on the condensation portion of the heat pipe outside the frame of the rotating electric machine One piece of fixed parts. A wind power generation system including a rotating electric machine, wherein: a wind turbine that receives wind and a rotating shaft that is connected to the wing by a hub to convert energy of wind received by the wing into a wind energy; Rotating the rotational energy of the rotating shaft through a speed increasing mechanism provided in the nacelle, connecting the rotating electric machine provided in the nacelle, and rotating the rotating shaft The electric energy is converted into electric energy of the rotating electric machine; and the rotating electric machine according to any one of claims 1 to 7 is used as a rotating electric machine provided in the nacelle.