JP5899816B2 - Heat conducting member for coil end, rotating machine, and method of assembling rotating machine - Google Patents

Description

  The present invention relates to a rotating machine that transfers heat generated at a coil end of a stator coil to a casing.

  A stator coil wound around a stator core such as an electric motor or a generator has a coil end portion that is led out to the outside in the rotation axis direction from a slot formed on an end surface of the stator core. Unlike the coil portion in the core, this coil end portion does not contact the stator core, so it is important how efficiently the heat generated by energization is removed.

  For cooling the coil end part, there is a method of spraying a cooling medium such as oil on the coil end in a sealed space. However, when there is an oil-free requirement, a cooling medium is supplied to the coil end part. It is not possible to adopt when it is difficult. Therefore, a resin having a relatively high thermal conductivity is used as a mold material for insulatingly sealing the coil end portion, and heat of the coil end portion is released to the casing through the mold material.

  In addition, a proposal has been made to increase the heat transfer efficiency from the coil end portion to the casing by inserting a cylindrical metal ring into the casing and interposing it between the mold material and the motor case (for example, Patent Document 1).

Japanese Patent No. 3262716

  By the way, about a stator coil, the part except the base (part near the end surface of a stator core) of a coil end part is bent to the casing side. Doing so is advantageous in reducing the cost by shortening the total length of the motor. For high-speed motors, shortening the overall motor length is advantageous in terms of rotor dynamics.

  In a rotating machine having a stator coil with the coil end portion bent toward the casing, the interval between the casing and the coil end portion is narrowed, so that the above-described cylindrical metal ring is inserted between them to increase the heat transfer efficiency. However, the thickness of the metal ring that can be inserted is limited, and a sufficient improvement effect of the heat transfer efficiency cannot be expected.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to realize a configuration for improving the heat transfer efficiency from the coil end portion to the casing in a rotating machine in which the coil end portion of the stator coil is bent toward the casing. It is in.

In order to achieve the above object, a heat conducting member for a coil end according to the present invention described in claim 1 is:
Coil end heat that extends from the end surface of the cylindrical stator core along the central axis direction and transfers heat generated in the coil end portion bent outward in the radial direction of the stator core to the cylindrical casing in which the stator core is housed. In the conductive member,
A coil side abutting portion that abuts a root portion extending along the central axis direction of the coil end portion;
A casing-side contact portion that contacts the casing in a state where the stator core is housed in the casing;
The coil-side contact portion is an inner peripheral surface, and the casing-side contact portion is an outer peripheral surface to form a columnar body having a fan-shaped end surface,
The columnar body has an insulating part that prevents a short circuit between phases of the coil end part, and a metal part that is formed integrally with the insulating part and has a higher thermal conductivity than the insulating part,
In a state in which the stator core is accommodated in the casing, in a part of the stator core in the circumferential direction, the stator core is disposed between the casing and the root portion of the coil end portion.
It is characterized by that.

  According to the heat conducting member for a coil end of the present invention described in claim 1, in a state where the stator core is housed in the casing, in a part of the stator core in the circumferential direction, between the casing and the root portion of the coil end portion. Placed in. The root portion of the coil end portion is a portion extending along the central axis direction of the stator core among the coil end portions bent outward in the radial direction of the cylindrical stator core.

  The coil side contact portion contacts the base portion of the coil end portion, and the casing side contact portion contacts the casing while the stator core is housed in the casing. Accordingly, a heat transfer path is formed by the coil end heat conducting member between the base portion of the coil end portion and the casing. And the heat conduction member for coil ends has a metal part with high heat conductivity, and has an insulating part which prevents the phase-to-phase short-circuit of the coil end part by a metal part.

  Therefore, the insulation between the coil end portion and the casing is secured between the coil end portion and the casing in a state where insulation between the coil end portions is ensured with higher heat transfer efficiency than filling the insulating resin between the coil end portion and the casing with a mold or the like. Can be thermally connected. And since the heat conduction member for coil ends contacts only the root part of a coil end part, the part bent to the casing side of a coil end part can be maintained as it is.

  For this reason, the structure which improves the heat-transfer efficiency from the coil end part to a casing in the rotary machine which bent the coil end part of the stator coil to the casing side is realizable.

Further, in the heat conduction member for a coil end according to the first aspect of the present invention , a plurality of the metal parts are arranged at intervals in the circumferential direction and abut on each coil end of the coil end part. The insulating part has a plurality of interphase insulating members that connect two adjacent metal blocks in the circumferential direction, and the outer periphery of the columnar body connected to the interphase insulating members. It has the outer periphery insulating member which comprises a surface, It is characterized by the above-mentioned.

According to the heat conduction member for a coil end of the present invention described in claim 1 , a high heat conduction of each metal block while further preventing a short circuit between phases of each coil end via the casing and each metal block by the outer peripheral insulating member. Depending on the rate, the heat generated in the coil end portion can be efficiently transferred to the casing.

Furthermore, the heat conducting member for a coil end of the present invention described in claim 2 is the heat conducting member for a coil end of the present invention described in claim 1 , wherein each of the metal blocks is in contact with the corresponding coil end. The portion has a recess corresponding to the outer shape of the coil end.

According to the heat conductive member for coil end of the present invention described in claim 2 , in the heat conductive member for coil end of the present invention described in claim 1 , the heat conductive member for coil end of the coil end portion is provided at the root portion of the coil end portion. When the coil side contact portion is brought into contact, the concave portion of each metal block comes into contact with the corresponding coil end.

  Since the root portion of the coil end portion extends along the central axis direction of the stator core, when the concave portion of each metal block comes into contact with the coil end, the heat conducting member for the coil end is turned into the coil end in the circumferential direction of the stator core. Positioned relative to the part. Accordingly, the coil end heat conduction member is positioned between the root portion of the coil end portion and the casing, and heat transfer from the coil end portion to the casing is reliably performed by the coil end heat conduction member. Can be made.

In order to achieve the above object, the rotating machine of the present invention described in claim 3 is
In a rotating machine that transfers heat from a coil end portion that extends from the end face of a cylindrical stator core along the central axis direction and is bent radially outward of the stator core to a cylindrical casing that houses the stator core,
Between the casing and a root portion extending along the central axis direction of the coil end portion, the heat conducting member for coil end according to claim 1 or 2 extends over the entire circumference in the circumferential direction of the stator core. Are arranged in a row,
It is characterized by that.

According to the rotating machine of the present invention described in claim 3 , according to the present invention described in claim 1 or 2 , between the casing and the root portion of the coil end portion over the entire circumference in the circumferential direction of the stator core. A plurality of coil end heat conducting members are arranged in series. The root portion of the coil end portion is a portion extending along the central axis direction of the stator core among the coil end portions bent outward in the radial direction of the cylindrical stator core.

  The coil side contact portion of each coil end heat conduction member is in contact with the root portion of the coil end portion, and the casing side contact portion of each coil end heat conduction member is in contact with the casing. Accordingly, a heat transfer path is formed between the base portion of the coil end portion and the casing over the entire circumference in the circumferential direction of the stator core. And the heat conduction member for coil ends has a metal part with high heat conductivity, and has an insulating part which prevents the phase-to-phase short-circuit of the coil end part by a metal part.

  Therefore, the insulation between the coil end portion and the casing is secured between the coil end portion and the casing in a state where insulation between the coil end portions is ensured with higher heat transfer efficiency than filling the insulating resin between the coil end portion and the casing with a mold or the like. Can be thermally connected. And since the heat conduction member for coil ends contacts only the root part of a coil end part, the part bent to the casing side of a coil end part can be maintained as it is.

  For this reason, the structure which improves the heat-transfer efficiency from the coil end part to a casing in the rotary machine which bent the coil end part of the stator coil to the casing side is realizable.

Furthermore, in order to achieve the above object, an assembling method of a rotating machine according to the present invention described in claim 4 includes:
A method of assembling a rotating machine according to claim 3 ,
The columnar body of the coil end heat conducting member from the outside in the radial direction so that the coil side abutting portion of the coil end heat conducting member according to claim 1 or 2 contacts the root portion of the coil end portion. A first step of assembling the coil end portion;
A second step of inserting the stator core assembled with the columnar body into the coil end portion into the casing and abutting the casing side abutting portion on the casing;
It is characterized by including.

According to the assembling method of the rotating machine of the present invention described in claim 3 , the columnar body of the heat conducting member for coil end is assembled to the root portion of the coil end portion before the stator core is inserted into the casing. For this reason, when the stator core is inserted into the casing, the dimensions necessary for passing the coil end heat conducting member between the casing and the portion of the coil end portion bent outward in the radial direction of the stator core are not empty. However, the heat conductive member for coil end can be assembled | attached to the base part of a coil end part, and a casing side contact part can be made to contact | abut to a casing.

  Therefore, in order to assemble the heat conducting member for coil end to the root portion of the coil end portion, the root portion of the coil end portion is not required to be deformed radially inward from the portion of the coil end portion bent outward in the stator core radial direction. The heat conducting member for coil end can be arranged so as to come into contact with the casing.

  For this reason, the structure which improves the heat-transfer efficiency from the coil end part to a casing in the rotary machine which bent the coil end part of the stator coil to the casing side is realizable.

  ADVANTAGE OF THE INVENTION According to this invention, the structure which improves the heat-transfer efficiency from the coil end part to a casing in the rotary machine which bent the coil end part of the stator coil to the casing side is realizable.

It is explanatory drawing which shows schematic structure of the rotary machine which concerns on one Embodiment of this invention. It is a perspective view which expands and shows the end surface part of the stator core of FIG. It is a top view which shows schematic structure of the heat conductive member for coil ends of FIG. It is sectional drawing which expands and shows the structure of the coil end part of FIG. It is a perspective view which shows an example of the heat conductive member for coil ends of FIG. FIG. 6 is a perspective view showing a state in which the coil end heat conducting member of FIG. 5 is assembled to the coil end portion of FIG. 2. It is explanatory drawing which shows the assembly | attachment process with respect to the coil end part of the heat conduction member for coil ends in the assembly process of the rotary machine of FIG. It is explanatory drawing which shows the insertion process with respect to the casing of the stator core in the assembly process of the rotary machine of FIG. It is a flowchart which shows the outline of the assembly process of the rotary machine of FIG. It is a perspective view which shows schematic structure of the heat conductive member for coil ends which concerns on other embodiment of this invention. It is a perspective view which shows the state which assembled | attached the heat conductive member for coil ends of FIG. 10 to the coil end part of FIG. It is explanatory drawing which shows schematic structure of the rotary machine which concerns on other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a rotating machine according to an embodiment of the present invention. The rotating machine of the present embodiment can be used as an electric motor or a generator.

  And the rotating machine of this embodiment has accommodated the cylindrical stator core 3 in the inside of the cylindrical casing 1. As shown in FIG. Side wall members 5 and 5 are respectively attached to both open ends of the casing 1, and each side wall member 5 rotatably supports both ends of the shaft 9 by bearings 7. A cylindrical rotor 11 is fixed to the shaft 9, and the rotor 11 is disposed inside the stator core 3 with a necessary air gap.

  As shown in the perspective view of FIG. 2, both end faces in the central axis direction of the stator core 3 have an annular shape, and each end face has a plurality of slots 3 a, 3 a, …have. As shown in the plan view of FIG. 3, each of the slots 3 a is inserted with any one of the U-phase, V-phase, and W-phase coil ends 13 a, and each coil end 13 a is outside the end face of the stator core 3. The ring-shaped coil end portion 13 is bundled in a state of being insulated from each other by insulating paper (not shown) and extends along the end face of the stator core 3.

  The coil end portion 13 has a portion extending in the direction of the central axis of the stator core 3 of each coil end 13a as a base portion, and a portion where the coil ends 13a are bundled in an annular shape is shown in a sectional view of FIG. The bent portion 13b is bent toward the casing 1 side (the radially outer side of the stator core 3).

  The coil end portion 13 is disposed in a sealed space formed by a cylindrical partition wall portion 5 a protruding from each side wall member 5, the casing 1, and the stator core 3. This sealed space is provided with a heat conducting member 15 (corresponding to a coil end heat conducting member in claims) from the outside in the radial direction of the stator core 3 at each coil end 13a of the coil end portion 13 (the root portion of the coil end portion 13). In the assembled state, for example, it is sealed by filling with an insulating resin 17 such as an epoxy resin. If the insulating resin 17 is a curable resin, the partition wall portion 5a may be removed after the insulating resin 17 is filled.

  As shown in FIG. 3, the heat conducting member 15 is composed of four fan-shaped columnar bodies having an annular shape. The outer peripheral surface of each heat conducting member 15 has the same diameter as the outer peripheral surface of the stator core 3, and the inner peripheral surface of each heat conducting member 15 has a slightly smaller diameter than the circle passing through the deepest part of each slot 3 a of the stator core 3. . Each heat conducting member 15 has a thickness corresponding to the extension length of each coil end 13 a of the coil end portion 13.

  As shown in the perspective view of FIG. 5, each heat conducting member 15 includes a metal part 19 having a large number of metal blocks 19a and a resin insulating part 21 that connects the metal blocks 19a in an insulated state. Yes. The outer peripheral surface of each heat conducting member 15 constitutes a casing side contact portion 15 a that is thinly covered with the outer peripheral insulating member 21 a of the insulating portion 21. Further, the inner peripheral surface of each heat conducting member 15 constitutes a coil side abutting portion 15b in which the metal blocks 19a and the interphase insulating members 21b of the insulating portion 21 are alternately arranged.

  Each metal block 19 a has a concave portion 19 b that extends in the thickness direction of the heat conducting member 15 at a portion constituting the coil side contact portion 15 b of the heat conducting member 15. The concave portion 19 b has a semicircular cross-sectional shape corresponding to the deepest portion of each slot 3 a of the stator core 3. As shown in FIG. 3, the two adjacent recesses 19 b and 19 b of the coil side contact portion 15 b have an interval corresponding to the deepest portion of the adjacent slots 3 a and 3 a of the stator core 3.

  The four heat conducting members 15 configured as described above are assembled to the coil ends 13 a of the coil end portion 13 from the outside in the radial direction of the stator core 3. By this assembly, each recess 19b of the coil side contact portion 15b of each heat conducting member 15 is in contact with the corresponding coil end 13a as shown in the perspective view of FIG. Moreover, the casing side contact part 15a of each heat conductive member 15 contacts the inner peripheral surface 1a of the casing 1, as shown in FIG.

  At this time, since the casing side contact portion 15 a that contacts the inner peripheral surface 1 a of the casing 1 is configured by the outer peripheral insulating member 21 a of the insulating portion 21, each metal block 19 a is short-circuited via the casing 1. Absent. Further, since the metal blocks 19a are insulated from each other by the interphase insulating member 21b, the coil ends 13a are not short-circuited via the metal block 19a.

  By the way, if the stator core 3 is accommodated in the casing 1, as shown in FIG. 4, the space | interval which inserts the heat conductive member 15 cannot be ensured between the bending part 13b of the coil end part 13, and the casing 1. As shown in FIG. Therefore, when assembling the rotating machine of the present embodiment, first, as shown in the explanatory view of FIG. 7, before the stator core 3 is housed in the casing 1, the heat conducting member 15 is placed in each coil of the coil end portion 13. Attach to the end 13a. Then, with the heat conducting member 15 assembled to the coil end 13a, the stator core 3 is inserted into the casing 1 as shown in the explanatory view of FIG.

  Therefore, the outline of the assembly process of the rotating machine according to the present embodiment is as follows. First, as shown in the flowchart of FIG. 9, when the coil is wound around the stator core 3 and the coil ends 13 a are bundled to form the coil end portion 13. The stator core 3 is bent outward in the radial direction. Thereby, the bending part 13b continuing to the coil end 13a is formed (step S1). Next, the heat conducting member 15 is assembled to the coil end portion 13 of the stator core 3 before being accommodated in the casing 1 (step S3). Subsequently, the stator core 3 is inserted into the casing 1, and the heat conducting member 15 is brought into contact with the inner peripheral surface 1a of the casing 1 (step S5). Thereafter, other necessary assembly steps are performed (step S7) to obtain a rotating machine.

  According to the rotating machine of the present embodiment described above, each coil end 13a (root portion) of the coil end portion 13 extending along the central axis direction of the stator core 3 over the entire circumference in the circumferential direction of the stator core 3. ) And the casing 1, four heat conducting members 15 are arranged in a row. Then, the metal block 19a constituting the coil side contact portion 15b of each heat conducting member 15 is brought into contact with each coil end 13a, and the casing side contact portion 15a of each heat conducting member 15 is formed on the casing 1. The outer peripheral insulating members 21a to be contacted were brought into contact with each other.

  Therefore, a heat transfer path can be formed between the coil end 13a and the casing 1 by the heat conducting member 15 having the metal block 19a having high heat conductivity over the entire circumference in the circumferential direction of the stator core 3. For this reason, the coil end 13a and the casing 1 are secured in a state in which the insulation between the coil ends 13a is ensured with higher heat transfer efficiency than filling the insulating resin between the coil end portion 13 and the casing 1 with a mold or the like. Can be thermally connected. And since the heat conductive member 15 is made to contact | abut only to the coil end 13a among the coil end parts 13, the bending part 13b bent to the casing side of the coil end part 13 can be maintained as it is.

  For this reason, the structure which improves the heat-transfer efficiency from the coil end part 13 to the casing 1 in the rotary machine which bent a part of coil end part 13 to the casing 1 side is realizable.

  Moreover, according to the heat conducting member 15 of the present embodiment, the metal blocks 19a are connected to each other via the interphase insulating member 21b, and the entire outer peripheral portion is covered with the outer peripheral insulating member 21a. For this reason, the heat generation of the coil end portion 13 is efficiently transferred to the casing 1 by the high thermal conductivity of each metal block 19a while preventing a short circuit between the coil ends 13a via the casing 1 and each metal block 19a. can do.

  Furthermore, according to the heat conducting member 15 of the present embodiment, the recess 19b formed in each metal block 19a is configured to abut on the corresponding coil end 13a. For this reason, the heat conducting member 15 can be positioned with respect to the coil end portion 13 in the circumferential direction of the stator core 3. As a result, the heat conducting member 15 is positioned between the coil end 13a and the casing 1, and heat conduction from the coil end portion 13 to the casing 1 can be reliably performed by the heat conducting member 15. it can.

  In addition, you may abbreviate | omit the recessed part 19b of each metal block 19a mentioned above. Further, the heat conducting member that thermally connects the coil end 13a and the casing 1 and efficiently transmits the heat generated by the coil end portion 13 to the casing 1 is configured differently from the heat conducting member 15 described above. You can also.

  For example, in the heat conducting member 15A shown in the perspective view of FIG. 10, the outer peripheral surface is configured by the outer peripheral metal member 19c of the metal portion 19, and the inner peripheral surface is configured by the inner peripheral insulating member 21c of the insulating portion 21, The member 19c and the inner peripheral insulating member 21c have a simple two-layer structure.

  Four heat conduction members 15 </ b> A configured in this way are assembled to each coil end 13 a of the coil end portion 13 from the radially outer side of the stator core 3. By this assembly, the inner peripheral insulating member 21c constituting the coil side contact portion 15b of each heat conducting member 15A contacts the corresponding coil end 13a as shown in the perspective view of FIG. Further, the outer peripheral metal member 19 c constituting the casing side contact portion 15 a of each heat conducting member 15 contacts the inner peripheral surface 1 a of the casing 1.

  At this time, since the coil side contact portion 15b that contacts each coil end 13a is constituted by the inner peripheral insulating member 21c of the insulating portion 21, each coil end 13a is the heat conducting member 15A (the outer peripheral metal member 19c). There is no short circuit through.

  Also with the heat conducting member 15A of the present embodiment configured as described above, the outer peripheral metal member 19c having a high thermal conductivity is provided between the coil end 13a and the casing 1 over the entire circumference in the circumferential direction of the stator core 3. A heat transfer path by the heat conducting member 15A can be formed. For this reason, the coil end 13a and the casing 1 are secured in a state in which the insulation between the coil ends 13a is ensured with higher heat transfer efficiency than filling the insulating resin between the coil end portion 13 and the casing 1 with a mold or the like. Can be thermally connected. In addition, since the heat conducting member 15A is brought into contact with only the coil end 13a of the coil end portion 13, the bent portion 13b bent toward the casing side of the coil end portion 13 can be maintained in its original shape.

  For this reason, the structure which improves the heat-transfer efficiency from the coil end part 13 to the casing 1 in the rotary machine which bent a part of coil end part 13 to the casing 1 side is realizable.

  In each of the embodiments described above, as shown in FIG. 1, the rotor 11 is fixed to the shaft 9 that is rotatably supported by the bearings 7, 7 of the side wall members 5, 5 at both open ends of the casing 1. An example of a rotating machine was explained. However, as shown in the explanatory view of FIG. 12, for example, the cylindrical rotor 11 can be rotated via the bearings 7A and 7A by the shaft 9 fixed and supported at both ends by the support portions 5b and 5b of the side wall members 5 and 5. The configuration of each embodiment described above can be applied to a rotating machine having a configuration to support.

  Also in the rotating machine having the configuration of FIG. 12, the heat conducting members 15 and 15 </ b> A of the above-described embodiments are attached to the coil ends 13 a of the coil end portion 13 from the outside in the radial direction of the stator core 3. As in the case of the rotating machine having the configuration of FIG. 1, the assembling process of the rotating machine including the process may employ the assembling process shown in the flowchart of FIG. it can.

  Then, by adopting the assembly process shown in the flowchart of FIG. 9, when the stator core 3 is inserted into the casing 1, the heat conducting members 15 and 15 </ b> A are interposed between the bent portion 13 b of the coil end portion 13 and the casing 1. Even if the dimension required to pass the coil is not empty, the heat conducting members 15 and 15A are assembled to the coil ends 13a of the coil end portion 13, and the casing-side contact portion 15a is attached to the inner peripheral surface 1a of the casing 1. It can be made to contact.

  Therefore, in order to assemble the heat conducting members 15 and 15A to the coil ends 13a of the coil end portion 13, the coil ends 13a of the coil end portion 13 can be formed without deforming the bent portions 13b of the coil end portion 13 inward. The heat conducting members 15 and 15A can be arranged so as to be in contact with the casing 1.

  Furthermore, in each embodiment mentioned above, the heat conductive members 15 and 15A were comprised with the fan-shaped columnar body which exhibits an annular | circular shape with four. This is because the workability when the coil-side contact portion 15b, which is the arc-shaped inner peripheral surface of the heat conducting members 15 and 15A, is brought into contact with the outer peripheral portion of each coil end 13a that exhibits an arc shape as a whole. is there. Therefore, as long as necessary workability can be ensured, the heat conducting members 15 and 15A can be composed of two or more fan-shaped columnar bodies having an annular shape. Each of the heat conducting members 15 and 15A is arranged in a circumferential direction between the casing 1 and the coil end 13a in a part of the stator core 3 in the circumferential direction, and the casing 1 and the coil end 13a Will be filled all around.

DESCRIPTION OF SYMBOLS 1 Casing 1a Inner peripheral surface 3 Stator core 3a Slot 5 Side wall member 5a Partition part 5b Support part 7, 7A Bearing 9 Shaft 11 Rotor 13 Coil end part 13a Coil end 13b Bending part 15, 15A Heat conduction member 15a Casing side contact part 15b Coil side contact portion 17 Insulating resin 19 Metal portion 19a Metal block 19b Recessed portion 19c Outer peripheral metal member 21 Insulating portion 21a Outer peripheral insulating member 21b Interphase insulating member 21c Inner peripheral insulating member

Claims (4)

Coil end heat that extends from the end surface of the cylindrical stator core along the central axis direction and transfers heat generated in the coil end portion bent outward in the radial direction of the stator core to the cylindrical casing in which the stator core is housed. In the conductive member,
A coil side abutting portion that abuts a root portion extending along the central axis direction of the coil end portion;
A casing-side contact portion that contacts the casing in a state where the stator core is housed in the casing;
The coil-side contact portion is an inner peripheral surface, and the casing-side contact portion is an outer peripheral surface to form a columnar body having a fan-shaped end surface,
The columnar body has an insulating part that prevents a short circuit between phases of the coil end part, and a metal part that is formed integrally with the insulating part and has a higher thermal conductivity than the insulating part,
While accommodating the stator core to the casing, in some portions in the circumferential direction of the stator core, it is disposed between the casing and the base portion of the coil end portion Rutotomoni,
The metal part has a plurality of metal blocks that are arranged at intervals in the circumferential direction and contact each coil end of the coil end part,
The insulating portion includes a plurality of interphase insulating members that connect two metal blocks adjacent in the circumferential direction, and an outer peripheral insulating member that is connected to the interphase insulating members and forms the outer peripheral surface of the columnar body. doing,
Heat conducting member for a coil end, wherein the this. 2. The heat conducting member for coil end according to claim 1 , wherein each metal block has a concave portion corresponding to the outer shape of the coil end at a portion contacting the corresponding coil end. In a rotating machine that transfers heat from a coil end portion that extends from the end face of a cylindrical stator core along the central axis direction and is bent radially outward of the stator core to a cylindrical casing that houses the stator core,
Between the casing and a root portion extending along the central axis direction of the coil end portion, the heat conducting member for coil end according to claim 1 or 2 extends over the entire circumference in the circumferential direction of the stator core. Are arranged in a row,
A rotating machine characterized by that. A method of assembling a rotating machine according to claim 3,
The columnar body of the coil end heat conducting member from the outside in the radial direction so that the coil side abutting portion of the coil end heat conducting member according to claim 1 or 2 contacts the root portion of the coil end portion. A first step of assembling the coil end portion;
A second step of inserting the stator core assembled with the columnar body into the coil end portion into the casing and abutting the casing side abutting portion on the casing;
A method of assembling a rotating machine.

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