JP5765930B2 - Rotating machine stator and rotating machine - Google Patents

Description

  The present invention relates to a stator of a rotating machine and a rotating machine, and more particularly to a technique for fixing an end portion of a stator winding wound by a concentrated winding method.

BACKGROUND ART A rotating machine such as an electric motor or a generator includes a stator having a stator core and a stator winding, and a rotor. The stator core has an annular yoke and a plurality of teeth protruding radially inward from the yoke and spaced apart in the circumferential direction, and each tooth has a tooth base and a tooth tip. . The rotor is supported so as to be rotatable with respect to the stator in a state where there is a gap between the rotor and the tooth tip.
Here, in the concentrated winding type rotating machine in which the stator winding is directly wound around the teeth, end insulating members are provided on both sides of the stator core in the axial direction, and the stator windings are formed using the end insulating members. Wrapped around. The ends of the stator windings are then tied to the end insulating member by a fixing member (referred to as “lacing”). In the rotating machine described in Patent Document 1, the end insulating member has a fitting portion that fits into the teeth, and a wall portion that extends in the axial direction from the fitting portion on the yoke side. Moreover, the through-hole and the recessed part are formed in the location facing the wall part adjacent to the circumferential direction at the wall part. The end portion of the stator winding is fixed to the wall portion between two wall portions adjacent in the circumferential direction by a binding band through which a through hole and a concave portion are passed.

JP 2010-252442 A

In the rotating machine described in Patent Document 1, the end of the stator winding is fixed to the end insulating member by passing the binding band through the through hole and the concave portion, so that the work is troublesome. In particular, in the rotating machine described in Patent Document 1 (stator constituting the rotating machine), it is difficult to mechanize the work of fixing the end of the stator winding to the end insulating member.
The present invention was devised in view of such a point, and provides a technique capable of easily fixing an end portion of a stator winding wound by a concentrated winding method to an end insulating member. With the goal.

  The rotating machine of the present invention is a rotor adder type rotating machine in which the rotor is rotatably supported inside the stator, or outside the rotor in which the rotor is rotatably supported outside the stator. It can be configured as a rotary type rotating machine. Moreover, it can be comprised as various types of rotary machines, such as an electric motor and a generator.

One invention relates to a stator of a rotating machine. The stator includes a stator core and a stator winding. The stator core has a yoke extending along the circumferential direction and a plurality of teeth extending in the radial direction from the yoke when viewed in a cross section perpendicular to the axial direction. Each tooth has a teeth base portion extending in the radial direction from the yoke, and a teeth tip portion provided on the distal end side of the teeth base portion and extending in the circumferential direction. A tooth tip surface is formed on the tooth tip portion on the side opposite to the yoke. In addition, the rotor is supported rotatably with respect to the stator in a state where there is a gap between the front end surface of the teeth.
End insulating members are provided on both axial sides of the stator core. Each end insulating member is disposed at a location facing the tip of the teeth when viewed in a cross section perpendicular to the axial direction, and is provided at a location facing the yoke and a plurality of first members extending along the circumferential direction. A second member disposed and extending along the circumferential direction; and disposed at a location facing the teeth base and extending along the radial direction; and connected to the first member and the second member. A plurality of connecting members. Preferably, the first member and the second member are formed as wall members extending in the axial direction from the connection member.
The stator winding is wound around the connecting member between the teeth and the end insulating member by a concentrated winding method. In at least one end insulating member, at least one end of the stator winding is disposed between the first member and the second member. The second member of the at least one end insulating member is formed with a first penetrating portion that penetrates the second member in the radial direction between two connecting members adjacent in the circumferential direction. ing.
Moreover, the fixing member which fixes the edge part of a stator coil | winding to a 2nd member is provided. As the fixing member, a member having an insulating property and capable of fastening the end portion of the stator winding to the second member is used. For example, an insulating string (cord) is used. As the string, for example, a polyester cord (a polyester strand, a polyester braided string), a nomex cord, a PPS cord, a Vectran cord, a polyester / nomex mixed (braided) cord or the like is used. The “string” of the present invention includes a thread.
Furthermore, the fixing member has a first wheel and a second wheel formed by passing the first penetrating portion along one direction in the radial direction. As a method of passing the fixing member through the first penetrating portion, typically, the hook portion of the needle is attached to the hook portion of the needle while the fixing member having one end fixed thereto is hooked. A method of passing through one through portion along one radial direction is used. “One direction in the radial direction” means a direction from the opposite side of the second member to the first member side of the second member, or the first member side of the second member. To the direction of the second member toward the opposite side of the first member. Preferably, the fixing member is passed from the first member side of the second member in a direction toward the opposite side of the second member to the first member.
At least one end of the stator winding disposed on at least one end insulating member is pressed against the second member by the first ring and the second ring. As a method of pressing the end of the stator winding against the second member, a method of binding the end of the stator winding to the second member is preferably used.
The other end of the stator winding is disposed on one end insulating member or the other end insulating member. When the other end of the stator winding is disposed on one end insulating member, the other end of the stator winding is connected to the one end of the stator winding by the same fixing member. Pressed against the second member. When the other end portion of the stator winding is disposed on the other end insulating member, the first penetrating portion is also provided on the second member of the other end insulating member. The other end of the stator winding is disposed between the first member and the second member of the other end insulating member, and fixes one end of the stator winding. It is pressed against the second member by another fixing member different from the fixing member. The other end of the stator winding may be disposed on one end insulating member or the other end insulating member in a manner that does not need to be fixed by a fixing member.
The method of processing the end of the stator winding is determined according to the method of connecting the stator windings and the like. For example, when three-phase (U-phase, V-phase, W-phase) stator windings are star-connected, one end portion of each phase stator winding is drawn to the outside and the other end portion Are connected at a neutral point. In addition, as a method of pulling out one end of the stator winding to the outside, a method of pulling out one end of the stator winding as it is, and connecting a lead wire to one end of the stator winding, A method of drawing out the leader line to the outside is used. The “end portion of the stator winding” of the present invention includes a lead wire connected to the end portion of the stator winding.
In the stator according to the present invention, the end portion of the stator winding is formed by using the first ring and the second ring formed by passing the fixing member through the first penetrating portion in one radial direction. Is fixed to the second member of the end insulating member, the end of the stator winding can be easily fixed to the second member.

In another form, the first wheel and the second wheel pass through the second wheel adjacent to one side in the circumferential direction with respect to the first wheel. The wheels are alternately arranged along the circumferential direction so as to pass through the first wheel adjacent to one side in the circumferential direction with respect to the second wheel.
In this embodiment, the first wheel and the second wheel can be easily connected.

In another different form, the fixing member is passed through the first penetrating portion from the first member side to the opposite side of the first member, so that the second member is opposite to the first member . 1 is formed, and the first ring is passed from the side opposite to the first member of the second member to the first member side of the second member, and one side in the circumferential direction. Through the second ring adjacent to The fixing member is passed from the first member side to the first member side opposite to the first member through two first through portions that are separated along the circumferential direction, and on the first member side of the second member The fixing member between the two first through portions is formed by passing the fixing member through the first through portion on one side in the circumferential direction of the two first through portions . The second ring is formed on the first member side of the second member by passing through the one ring .
In this embodiment, since the first ring and the second ring can be continuously arranged, the end of the stator winding can be easily fixed to the second member.

In another different embodiment, a hole penetrating in the radial direction or a groove penetrating in the radial direction while being open on the stator core side is used as the first penetrating portion.
In this embodiment, as the first penetrating portion, a hole penetrating in the radial direction or a groove having an opening on the stator core side and penetrating in the radial direction is used. The end portion of the stator winding can be easily fixed to the second member.

In still another embodiment, the first penetrating portion has a line passing through at least a part of the first penetrating portion and the center of the stator core adjacent to each other in the circumferential direction when viewed in a cross section perpendicular to the axial direction. It is provided so that it may pass between the 1st members connected to each of the two connecting members. The “line passing through the center of the stator core” corresponds to the rotation center line passing through the axial center of the rotor in a state where the rotor is movably disposed with respect to the stator.
The cross-sectional shape seen from the position where the first penetrating portion is disposed and the center side of the stator core is a tool that passes the fixing member through the first penetrating portion along the radial direction when viewed in a cross section perpendicular to the axial direction ( For example, it is only necessary that the needle) can pass through the first through portion along a straight line passing through the center of the stator core. For example, the length along the circumferential direction of the first penetrating portion may be the same as or longer than the interval between the first members connected to the two connecting members adjacent in the circumferential direction, It may be short. In addition, the first through portion may be provided between the first members connected to each of the two connection members adjacent in the circumferential direction when viewed from the center side of the stator core. It may be provided so as to be shifted to either one of the directions. That is, when viewed from the center side of the stator core, at least a part of the first penetrating portion is provided between the first members connected to the two connection members adjacent in the circumferential direction. Good.
In this embodiment, a tool (for example, a needle having a hook-shaped hook portion) used for passing the fixing member through the first penetrating portion in one direction along the radial direction is easily inserted into the first penetrating portion. Can also be withdrawn.

In still another embodiment, the second member of at least one end insulating member is separated from the stator core from the first through portion along the axial direction between two connection members adjacent in the circumferential direction. A second penetrating portion that pierces the second member in the radial direction at the position. And the 1st ring is passed to the 1st member side from the side opposite to the 1st member of the 2nd member through the 2nd penetration part. The second penetrating portion preferably has the first penetrating portion so that at least a part of the first penetrating portion overlaps the second penetrating portion when viewed in a cross section perpendicular to the axial direction. The circumferential center of the portion and the circumferential center of the second penetrating portion are formed so as to overlap.
In this embodiment, since the first ring can be positioned in the second penetrating portion, the first ring does not shift in the circumferential direction, and the end of the stator winding is reliably attached to the second member. Can be fixed to. Moreover, since the fixing member does not protrude in the axial direction from the second member, the axial length of the stator can be reduced.

In another different embodiment, a hole penetrating in the radial direction or a groove penetrating in the radial direction and opening in the radial direction is used as the first penetrating portion, and the second penetrating portion is used as the first penetrating portion. A groove that is open on the side opposite to the stator core and that penetrates in the radial direction is used.
In this embodiment, the first penetrating portion and the second penetrating portion can be easily formed. In addition, by using a groove that is open on the side opposite to the stator core as the second penetrating portion, the first ring is connected to the second penetrating portion from the side opposite to the first member. The first member can be easily transferred to the first member side. In addition, since the fixing member does not protrude in the axial direction from the second member, the height along the axial direction of the stator can be reduced.

In yet another different form, the first penetration portion and the second penetration portion have a line passing through at least a part of the first penetration portion and the center of the stator core, as viewed in a cross section perpendicular to the axial direction. A line passing through at least a part of the two through portions and the center of the stator core is provided so as to pass between the first members connected to the two connection members adjacent in the circumferential direction.
The cross-sectional shape seen from the position where the first penetrating portion is disposed and the center side of the stator core is a tool that passes the fixing member through the first penetrating portion along the radial direction when viewed in a cross section perpendicular to the axial direction ( For example, it is only necessary that the needle) can pass through the first through portion along a straight line passing through the center of the stator core. For example, the length along the circumferential direction of the first penetrating portion may be the same as or longer than the interval between the first members connected to the two connecting members adjacent in the circumferential direction, It may be short. In addition, the first through portion may be provided between the first members connected to each of the two connection members adjacent in the circumferential direction when viewed from the center side of the stator core. It may be provided so as to be shifted to either one of the directions. That is, when viewed from the center side of the stator core, at least a part of the first penetrating portion is provided between the first members connected to the two connection members adjacent in the circumferential direction. Good.
Similarly, the arrangement position of the second penetrating portion and the cross-sectional shape viewed from the center side of the stator core are the cross section perpendicular to the axial direction, and the first ring (fixing member) is the second penetrating portion. It suffices if a tool (for example, a needle) passing in the radial direction through the second through portion can pass along a straight line passing through the center of the stator core. For example, the length along the circumferential direction of the second penetrating portion may be the same as or longer than the interval between the first members connected to the two connecting members adjacent in the circumferential direction, It may be short. The second penetration portion may be provided between the first members connected to the two connection members adjacent in the circumferential direction when viewed from the center side of the stator core. It may be provided so as to be shifted to either one of the directions. That is, when viewed from the center side of the stator core, at least a part of the second penetrating portion is provided between the first members connected to the two connecting members adjacent in the circumferential direction. Good.
In this embodiment, a tool (for example, a needle having a hook-like hook portion) used for passing the fixing member through the first penetrating portion in one direction along the radial direction is used as the first penetrating portion and the second penetrating portion. It can be easily inserted into or removed from the part.

Furthermore, in another different form, the location where the second ring passes between the first rings is arranged in a region facing the connecting member.
In this embodiment, the end of the stator winding can be easily fixed to the second member.

Further, in another different place, the place where the second ring passes between the first rings is arranged in a region between two connection members adjacent in the circumferential direction.
In this embodiment, the end of the stator winding can be firmly fixed to the second member.

Another invention relates to a rotating machine. The rotating machine includes any one of the above-described stators and a rotor, and the rotor is rotatably supported so as to have a gap between the teeth tip surface of the stator.
The rotating machine of the present invention has the same effect as the stator described above. Thereby, it is possible to obtain a rotating machine that can prevent the end of the stator winding from being displaced due to vibration or the like during operation of the rotating machine.

  In the stator or the rotating machine of the rotating machine of the present invention, the operation of passing one fixing member through the first through part of the second member of the end insulating member along one radial direction is continuously performed. And the end of the stator winding can be fixed to the end insulating member. Alternatively, the operation of passing one fixing member along one radial direction through the first through portion of the second member of the end insulating member and the other radial direction along the second through portion. The threading operation can be performed continuously, and the end of the stator winding can be fixed to the end insulating member. As a result, the end of the stator winding wound by the concentrated winding method can be easily fixed to the end insulating member, and the fixing time can be greatly shortened.

1 is a perspective view of a stator of a rotating machine according to a first embodiment (end portions of a stator winding and a fixing member are not shown). It is a fragmentary sectional view of a stator core. FIG. 3 is a plan view of the stator of the rotating machine according to the first embodiment. FIG. 4 is a view taken along line IV in FIG. 3. FIG. 4 is a view taken in the direction of arrow V in FIG. 3. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 1st Embodiment. It is a top view of the rotary machine of 2nd Embodiment. It is the XVIII line arrow directional view of FIG. FIG. 18 is a view on arrow XIX in FIG. 17. It is a figure explaining the racing operation | movement in the rotary machine of 2nd Embodiment. It is a figure explaining the racing operation | movement in the rotary machine of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described. In the following, a rotor adder type electric motor composed of a stator in which a stator winding is wound around teeth in a concentrated winding manner and a rotor that is rotatably supported inside the stator. explain.
Of course, the present invention can also be configured as a rotor abduction type electric motor in which the rotor is rotatably supported outside the stator. Moreover, this invention is not limited to an electric motor, It can comprise as various rotary machines, such as a generator.

The stator 10 of the rotary machine of 1st Embodiment is demonstrated with reference to FIGS. 1 is a perspective view of the stator 10 of the rotating machine according to the first embodiment. However, one end portions 31a to 31c of the stator winding 30 and the other end portions 32a and 32b (FIG. 3). The fixing member 100 is not illustrated. FIG. 2 is a partial cross-sectional view of the stator core 20. FIG. 3 is a plan view of the stator 10 of the rotating machine according to the first embodiment as viewed from one side in the axial direction (the end insulating member 40 side), and FIG. 4 is an IV line arrow in FIG. FIG. 5 is a view (viewed from the inside), and FIG. 5 is a view taken along the arrow V in FIG. 3 (viewed from the outside).
In the present specification, the “axial direction” means a line passing through the center of the rotor (rotation center line shown in FIG. 1) in a state where the rotor is rotatably supported with respect to the stator 10. P) direction. The “circumferential direction” is centered on the rotation center line P when viewed in a cross section perpendicular to the axial direction (direction of the rotation center line P) in a state where the rotor is rotatably supported with respect to the stator 10. Indicates the circumferential direction. The “radial direction” refers to a cross section perpendicular to the axial direction (the direction of the rotation center line P) when the rotor is rotatably supported with respect to the stator 10, and passes through the rotation center line P. Indicates direction.

The rotating machine according to the present embodiment includes a stator 10 and a rotor (not shown).
The stator 10 includes a stator core 20, a stator winding 30, end insulating members 40 and 50, and a fixing member 100 (not shown in FIG. 1).
As shown in FIG. 2, the stator core 20 has a yoke 21 extending along the circumferential direction as viewed in a cross section perpendicular to the axial direction, and a diameter from the yoke 21 spaced apart in the circumferential direction. A plurality of teeth 22 extending in the direction is provided. In the present embodiment, the stator core 20 is constituted by a laminated body in which a plurality of thin electromagnetic steel plates are laminated in the axial direction and integrated by an auto clamp or the like. The yoke 21 is formed in an annular shape (including a substantially annular shape). Each of the teeth 22 is provided on the distal end side of the teeth base 22a and the teeth base 22a extending radially inward (rotation center line P side) from the yoke 21 when viewed in a cross section perpendicular to the axial direction. It has the teeth front-end | tip part 22b extended along. A tooth tip surface 22 c is formed on the tooth tip 22 b on the side opposite to the yoke 21. The teeth tip surface 22c is formed in an arc shape centered on the rotation center line P.
In the rotating machine according to the present embodiment, the rotor is rotatably supported in a state where a gap (gap) is provided between the rotor tip and the tooth tip surface 22c in the rotor housing space inside the stator 10. ing.
A slot 23 is formed by the yoke 21 and two teeth 22 adjacent in the circumferential direction. The slot 23 has a slot opening 23a between the tooth tips of two teeth 22 adjacent in the circumferential direction.
The stator core 10 has axial end faces on both axial sides. In the present embodiment, the stator core 20 is formed in a cylindrical shape (including a substantially cylindrical shape).
A slot insulating member 60 is provided in the slot 23. As the slot insulating member 60, for example, an insulating member formed into an elastic sheet (film) using polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or the like is used. The stator winding 30 is inserted into the slot 23 with the slot insulating member 60 being disposed.

The end insulating members 40 and 50 are provided on both sides in the axial direction of the stator core 20 (positions facing the end surfaces in the axial direction). The end insulating members 40 and 50 are made of, for example, polyethylene sulfide (PPS), polybutylene terephthalate (PBT), liquid crystal polymer (LCP), or the like.
In the rotating machine of the present embodiment, the end insulating members 40 and 50 have the same configuration except for the hole 42a, the groove 42b, and the auxiliary member 42c (details will be described later). The configuration of the member 40 will be described.
The end insulating member 40 has a plurality of first members 41 extending in the circumferential direction, a second member 42 extending in the circumferential direction, and a diameter when viewed in a cross section perpendicular to the axial direction. It has a plurality of connecting members 43 (see FIG. 6) that extend along the direction and connect the first member 41 and the second member 42. In a state where the end insulating member 40 is disposed so as to face the end surface on one axial side of the stator core 20, the first member 41 is disposed at a position facing the tooth tip 22 b of the tooth 22, The second member is disposed at a position facing the yoke 21, and the connecting member 43 is disposed at a position facing the tooth base portion 22 a of the tooth 22 (see FIG. 6). The configuration “arranged at a position facing the tooth base 22 a” includes an aspect in which at least a part thereof overlaps the teeth base 22 a when viewed in a cross section perpendicular to the axial direction. Further, the first member 41 and the second member 42 extend along the axial direction. That is, the first member 41 and the second member 42 form an inner wall member and an outer wall member.
In the state where the end insulating member 40 is disposed so as to face the end surface on one side in the axial direction of the stator core 20, the surface on the rotor side of the first member 41 (in this embodiment, the radial direction) It is preferable that the inner surface (inner peripheral surface) 41a does not protrude from the teeth tip surface 22c to the rotor side (in the present embodiment, radially inward). The connection member 43 of the end insulating member 40 is used when the stator winding 30 is wound around the teeth 22 by a concentrated winding method.

  In this embodiment, in order to prevent insulation failure from occurring at the boundary between the stator core 20 and the end insulating member 40, the slot insulating member 60 is provided from the axial end surface of the stator core 20. It protrudes in the axial direction. The protruding length of the slot insulating member 60 is set in the range of 2 mm to 4 mm in consideration of the insulating distance between the stator winding 30 and the stator core 20.

  In the present embodiment, the interphase insulating member 70 is inserted into the slot 23 in order to insulate between the stator windings 30 that are inserted into the slot 23 and are adjacent to each other in the circumferential direction. As the interphase insulating member 70, similarly to the slot insulating member 60, for example, an insulating member formed into an elastic sheet (film) made of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or the like is used. . In the present embodiment, as shown in FIG. 2, the sheet-like insulating member is formed by bending and has a V-shape (including a substantially V-shape) when viewed in a cross section perpendicular to the axial direction. A winding insulation member 70 is used. Note that FIG. 2 is shown in a simplified manner.

Here, as shown in FIGS. 3 and 4, the stator winding 30 directly wound around the connecting member 43 of the tooth 22 and the end insulating member 40 or 50 has one end portions 31 a to 31 c. The other end 32a, 32b is provided. Each end of the stator winding 30 is processed according to the method of connecting the stator winding 30. For example, in the case of star connection, one end of a three-phase (U-phase, V-phase, W-phase) stator winding is drawn to the outside, and the other end is connected at a neutral point Is done. In the present embodiment, four star-connected stator windings are connected in parallel. 3 and 4, one end 31a, 31b, 31c of the stator winding 30 is respectively connected to one end of the four stator windings 30 of U phase, V phase, and W phase. The other ends 32a and 32b of the other end portions 32a and 32b of the U-phase, V-phase, and W-phase stator windings 30 are respectively two star-connected stator windings. It is shown as bundled line by line. The other ends 32a and 32b connected to the neutral point are usually covered with a connection point protection member.
In the present embodiment, one end portions 31a to 31c of the stator winding 30 are disposed between the first member 41 and the second member 42 of the one end insulating member 40, and to the outside. Has been pulled out. As a method of pulling out the end portions 31a to 31c of the stator winding 30 to the outside, a method of pulling out the end portions 31a to 31c of the stator winding 30 as it is or a method of pulling out the end portions 31a to 31c of the stator winding 30 as lead wires It is possible to use a method in which the lead wire is pulled out to the outside. In the present embodiment, the end portions 31a to 31c of the stator winding 30 are pulled out as they are. The “end portion of the stator winding” of the present invention includes not only the end portion of the stator winding itself but also a lead wire connected to the end portion of the stator winding.
In the present embodiment, the other end portions 32 a and 32 b of the stator winding 30 are disposed between the first member 41 and the second member 42 of the one end insulating member 40.
The method of connecting the stator windings, the number of stator windings connected in parallel, and the method of pulling out the ends of the stator windings can be selected as appropriate.

In the present embodiment, one end portions 31 a to 31 c of the stator winding 30 and the other end portions 32 a and 32 b are located between the first member 41 and the second member 42 of the one end insulating member 40. Therefore, one end 31a to 31c and the other end 32a, 32b of the stator winding 30 need to be fixed to the end insulating member 40 so that they do not move during operation of the rotating machine. .
In the present embodiment, one end portions 31a to 31c and the other end portions 32a and 32b of the stator winding 30 are prevented from jumping out to the rotor side (in the present embodiment, the radial center side). For this purpose, one end 31a to 31c of the stator winding 30 and the other end 32a, 32b are connected to the second end of the end insulating member 40 using an insulating string (also referred to as “cord”) 100. It fixes to the member 42 (the 1st member 41 side of the 2nd member 42). As the cord 100, for example, a polyester cord (polyester cord, polyester braided cord), nomex cord, PPS cord, Vectran cord, polyester / nomex mixed (braided) cord or the like is used.
The fixing member that fixes the one end 31a to 31c and the other end 32a or 32b of the stator winding 30 to the second member 42 of the end insulating member 40 includes one end 31a to 31c. It is only necessary that the other end portions 32a and 32b can be tied to the second member 42, and a thread or the like can also be used.

In addition, one end 31 a to 31 c and the other end 32 a, 32 b of the stator winding 30 can be easily fixed to the second member 42 of the end insulating member 40 by using an insulating string 100. Therefore, the second member 42 is provided with a hole 42a and a groove 42b that penetrate the second member 42 in the radial direction. As shown in FIGS. 4, 6, and 15, the hole 42 a and the groove 42 b are formed between two connection members 43 that are adjacent in the circumferential direction. Further, the groove 42b is formed at a location farther from the stator core 20 than the hole 42a. The groove 42b is open on the opposite side to the stator core 20.
The string 100 corresponds to the “fixing member” of the present invention, the hole 42a corresponds to the “first penetrating portion” of the present invention, and the groove 42b corresponds to the “second penetrating portion” of the present invention.
The cross-sectional shape (along the circumferential direction) viewed from the position where the hole 42a is formed and the rotor centerline P side (along the circumferential direction) is a tool that passes the string 100 along the radial direction through the hole 42a when viewed in a cross section perpendicular to the axial direction ( For example, it is only necessary that a needle 200) described later can pass through the hole 42a along a straight line passing through the rotation center line P. For example, the length along the circumferential direction of the hole 42a may be the same as the interval between the first members 41 connected to the two connecting members 43 adjacent in the circumferential direction, may be long, or short. May be. Moreover, the hole 42a may be provided between the first members 41 connected to each of the two connecting members 43 adjacent in the circumferential direction when viewed from the rotation center line P side. It may be displaced in either direction. That is, it is only necessary that at least a part of the hole 42a is provided between the first members 41 connected to the two connection members 43 adjacent in the circumferential direction when viewed from the rotor centerline P side. .
Similarly, the formation position of the groove 42b and the cross-sectional shape (along the circumferential direction) viewed from the rotor center line P side are the first ring 110 (string 100), which will be described later, as viewed in a cross section perpendicular to the axial direction. It is only necessary that a tool (for example, a needle 200 described later) passing through the groove 42b in the radial direction can pass through the groove 42b along a straight line passing through the rotation center line P. For example, the length along the circumferential direction of the groove 42b may be the same as the interval between the first members 41 connected to the two connection members 43 adjacent in the circumferential direction, may be long, or short. May be. Further, the groove 42b may be provided between the first members 41 connected to each of the two connection members 43 adjacent in the circumferential direction when viewed from the rotation center line P side, or in the circumferential direction. It may be displaced in either direction. That is, it is only necessary that at least a part of the groove 42b is provided between the first members 41 connected to the two connection members 43 adjacent to each other in the circumferential direction when viewed from the rotor center line P side. .
Furthermore, the positions where the holes 42a and the grooves 42b are formed may overlap with each other when viewed from the rotation center line P side, or may be shifted to any one of the circumferential directions. Preferably, when viewed in a cross section perpendicular to the axial direction, at least a part of the hole 42a overlaps the groove 42b, and more preferably, the circumferential center of the hole 42a and the circumferential center of the groove 42b overlap. The shape and formation position of the hole 42a and the groove 42b are set.

  The auxiliary member 42c formed on the stator core 20 side of the hole 42a on the side opposite to the first member 41 of the second member 42 of the end insulating member 40 is an end insulating member having a hole 42a. The member 40 is for integrally molding with resin using a resin mold. By having the auxiliary member 42c, it is possible to prevent the end insulating member 40 from being distorted due to contraction when the end insulating member 40 is taken out from the resin mold. The auxiliary member 42c can be omitted.

Next, the one end portions 31 a to 31 c and the other end portions 32 a and 32 b of the stator winding 30 are fixed to the inner side of the second member 42 of the end insulating member 40 using the string 100 (racing). The operation will be described with reference to FIGS. 6 to 14 are views seen from the end insulating member 40 side, and FIGS. 15 and 16 are views seen from a direction perpendicular to the circumferential direction. In the present embodiment, one end portions 31a to 31c of the stator winding 30 and the other end portions 32a and 32b are simultaneously fixed to the second member 42 by the string 100. However, the description will be simplified. For this purpose, the other end portions 32a and 32b of the stator winding 30 are not shown in FIGS. Therefore, below, the operation | movement which fixes one edge part 31a-31c of the stator winding | coil 30 is demonstrated.
The racing operation described below is performed by adjusting the pulling force on the other side of the string 100 in a state where the end portion on one side of the string 100 is fixed. For example, the lower end of the string 100 shown in FIGS. 6 to 16 is tied to the end insulating member 40, and the string 100 is fed out from the upper side.
Further, the needle 200 is used as a tool (racing tool) that binds (fixes) the end portions 31 a to 31 c of the stator winding 30 to the second member 42 of the end insulating member 40 using the string 100. The needle 200 has a main body portion 201 and a hook-shaped hook portion 202 provided on the distal end side of the main body portion 201.
In the following description, for the sake of convenience, the opposite side of the second member 42 to the first member 41 (the left side of the second member 42 in FIGS. 6 to 16) is referred to as the “outer side”. The first member 41 side (the right side of the second member 42 in FIGS. 6 to 16) of the member 42 is referred to as “inside”. Further, the direction in which the second member 42 passes from the side opposite to the first member 41 to the first member 41 side is referred to as “the direction from the outside to the inside”, and the second member 42 is defined as the first member side. The direction passing from 41 to the opposite side of the first member 41 is referred to as “the direction from the inside to the outside”.
6-16, hole 42a (1), hole 42a (2), groove 42b (1), 42b (2), 1st ring | wheel 110 (1), 110 (2), 2nd ring | wheel 120 The numbers in parentheses attached to (1) etc. are merely for simplifying the explanation.
6 to 14, the counterclockwise direction around the rotation center is referred to as “one direction along the circumferential direction”, and the clockwise direction is referred to as “the other direction along the circumferential direction”.

[Step 1]
The hook portion 202 of the needle 200 is passed through the hole 42 a (1) from the outside to the inside, and the string 100 on the feeding side is hooked on the hook portion 202. [(1) in FIG. 6, (1) in FIG. 15]
[Step 2]
With the string 100 hooked, the hook portion 202 is passed through the hole 42a (1) from the inside to the outside. Thereby, the string 100 (parts on both sides across the portion hooked by the hook portion 202) is passed from the inside to the outside through the hole 42a (1), and the first ring 110 is placed outside the second member 42. (1) is formed. [(2) in FIG. 7, (2) in FIG. 15]
[Step 3]
Next, in a state where the string 100 is hooked, the hook portion 202 is moved from the hole 42a (1) to the direction of the groove 42b (1) corresponding to the hole 42a (1) (on the side opposite to the stator core 20). Let Thereby, the 1st ring | wheel 110 (1) formed in the outer side of the 2nd member 42 is extended in the direction of the groove | channel 42b (1) from the hole 42a (1). [(3) in FIG. 15]

[Step 4]
Next, the needle 200 is rotated around the central axis of the needle 200, and the string 100 (the portion forming the first ring 110 (1)) is removed from the hook portion 202, while the groove 42 b (1) Thread from outside to inside. In this state, the hook portion 202 is passed between the first wheels 110 (1), and the string 100 on the feeding side is hooked on the hook portion 202. [(4) in FIG. 8, (4) in FIG. 15]
[Step 5]
Next, the needle 200 is rotated around the central axis of the needle 200, and the hook portion 202 is passed through the first ring 110 (1) from the inside to the outside while the string 100 is hooked. Thus, the second ring 120 (1) passing through the first ring 110 (1) is formed inside the second member 42. In FIG. 9, a portion where the second ring 120 (1) passes through the first ring 110 (1) is surrounded by a chain line and indicated by Q. [(5) in FIG. 9, (5) in FIG. 15]
[Step 6]
In this state, the stator core 20 and the end insulating member 40 are rotated about the rotation center line P. In the present embodiment, as shown in FIG. 10, the stator core 20 and the end insulating member 40 are rotated counterclockwise (one direction along the circumferential direction) about the rotation center line P. ing. Accordingly, the second ring 120 (1) extends in the clockwise direction (the other direction along the circumferential direction) between the first member 41 and the second member 42. At this time, the second ring 120 (1) is moved clockwise from the position corresponding to the hole 42a (1) (or groove 42b (1)) with respect to the hole 42a (1) (groove 42b (1)) ( It extends to a portion corresponding to the hole 42a (2) (or groove 42b (2)) adjacent in the other direction along the circumferential direction, that is, approximately one slot pitch.
In the present embodiment, at the same time, the first ring 110 (1) also extends in the clockwise direction between the first member 41 and the second member 42. That is, the point Q through which the second wheel 120 (1) passes through the first wheel 110 (1) moves along the clockwise direction. The length (Q position) that the first ring 110 (1) extends in the clockwise direction can be adjusted by adjusting the pulling force of the string 100 on the feeding side, for example. In the present embodiment, the portion 100 where the second ring 120 (1) passes through the first ring 110 (1) is passed through the string 100 to form the first ring 110 (1). It is configured to be set in a region facing the connecting member 43 adjacent to the hole 41a (1) in the clockwise direction (the other direction along the circumferential direction). [(6) in FIG. 10]

[Step 7]
Next, in a state where the string 100 is hooked, the hook 202 is passed through the groove 42b (2) from the inside to the outside. Thereby, the second ring 120 (1) extends from the inside to the outside through the groove 42b (2). [(7) in FIG. 11, (7) in FIG. 16]
[Step 8]
Further, in a state where the string 100 is hooked, the hook 202 is moved from the groove 42b (2) to the direction of the hole 42a (2) corresponding to the groove 42b (2) (stator core 20 side). Thereby, the second ring 120 (1) further extends in the direction of the hole 42a (2) from the groove 42b (2). [(8) in FIG. 11, (8) in FIG. 16]

[Step 9]
Next, the needle 200 is rotated around the central axis of the needle 200, and the string 100 (the portion forming the second ring 120 (1)) is removed from the hook portion 202, while the hole 42 a (2) Thread from outside to inside. Then, the hook portion 202 is passed through the second ring 120 (1), and the feeding-side string 100 is hooked on the hook portion 202. [(9) in FIG. 12, (9) in FIG. 16]
The operation in Step 9 is the same as that in Step 1 except that the hook portion 202 is passed through the second wheel 120.
[Step 10]
Next, while rotating the needle 200 around the central axis of the needle 200 and hooking the string 100, the hook portion 202 is passed through the hole 42a (2) from the inside to the outside, and the second wheel Pass through 120 (1). As a result, a first ring 110 (2) passing through the second ring 120 (1) is formed. In FIG. 13, a portion where the second ring 110 (2) passes through the second ring 120 (1) is surrounded by a broken line and indicated by R. The location R through which the first ring 110 passes through the second ring 120 can be set as appropriate, but preferably, the hole 42a (2) (or the groove 42b ( 2)). As a result, the end of the stator winding 30 is fixed to the second member 42 by the first ring 110 and the second ring 120 that are arranged in an intersecting manner when viewed from the first member 41 side. The
[(10) in FIG. 13, (10) in FIG. 16]
The operation of Step 10 is the same as that of Step 2 except that the first wheel 110 passes through the second wheel 120.

[Step 11]
In step 11, the same operation as in step 3 is performed. (The operation of step 11 is not shown.)
That is, in a state where the string 100 is hooked, the hook portion 202 is moved from the hole 42a (2) to the direction of the groove 42b (2) corresponding to the hole 42a (2) (the side opposite to the stator core 20). After that, the groove 42b (2) is passed from the outside to the inside. Thus, the first ring 110 (2) formed outside the second member 42 extends from the hole 42a (2) in the direction of the groove 42b (2), and further passes through the groove 42b (2). The second member 42 extends from the outside to the inside.
[Step 12]
In step 12, the operation of step 12 similar to step 4 is performed.
That is, the needle 200 is rotated around the central axis of the needle 200, and the string 100 (the portion forming the first ring 110 (2)) is removed from the hook portion 202 while the outer side of the groove 42b (2). From the inside. In this state, the hook portion 202 is passed between the first wheels 110 (2), and the string 100 on the feeding side is hooked on the hook portion 202. [(12) in FIG. 14]
Thereafter, the operations of Steps 5 to 12 are repeated, and the first wheel 110 and the second wheel 120 are alternately arranged along the circumferential direction.

In the rotating machine of the present embodiment, as shown in FIGS. 3 and 4, one end portions 31 a to 31 c and the other end portions 32 a and 32 b of the stator winding 30 are connected to the end insulating member 40. The first member 41 and the second member 42 are disposed between the first member 41 and the second member 42, and are bound to the second member 42 by the first wheel 110 and the second wheel 120 formed by the string 100. That is, one end portions 31 a to 31 c and the other end portions 32 a and 32 b of the stator winding 30 are pressed against (fixed to) the second member 42 by the first ring 110 and the second ring 120. ing).
In the present embodiment, the first ring 110 is formed outside the second member 42 by passing the string 100 through the hole 42a from the inside to the outside, and the second ring 42 is placed inside the second member 42. An annulus 120 is formed. The first ring 110 is further passed to the inside of the second member 42 by passing the second member 42b from the outside to the inside. Furthermore, the first wheel 110 and the second wheel 120 are alternately arranged along the circumferential direction, and the first wheel 110 is located on the inner side of the second member with respect to the first wheel 110. The second wheel 120 passes along the circumferential direction with respect to the second wheel 120 through the second wheel 120 adjacent in one direction along the circumferential direction (counterclockwise in this embodiment). It is formed so as to pass through the first ring 110 adjacent in one direction. Further, in the present embodiment, the portion Q where the second wheel 120 passes through the first wheel 110 is the hole 42a (or the hole through which the string 100 is passed when the first wheel 110 is formed. A region R which is set in a region facing the connecting member 43 adjacent in one direction along the circumferential direction with respect to the groove 42b) corresponding to 42a, and the first ring 110 passes through the second ring 120. Is set in a region in the vicinity of the hole 42a (or the groove 42b corresponding to the hole 42a) through which the string 100 passes when the first ring 110 is formed. Thereby, one end part 31a-31c of the stator winding | coil 30 and the other end part 32a, 32b are the 2nd member 42 by the 1st ring | wheel 110 and the 2nd ring | wheel 120 which are arrange | positioned at intersection. Fixed to.
In the present embodiment, the stator winding 30 is obtained by performing an operation of passing the string 100 through the hole 42a and the groove 42b in the radial direction and an operation of rotating the end insulating portion 40 (stator core 20). The one end portions 31a to 31c and the other end portions 32a and 32b can be fixed to the second member 40, so that one end portions 31a to 31c of the stator winding 30 and the other end portion 32a, 32 b can be easily fixed to the second member 42 of the end insulating member 40. In particular, in the present embodiment, the first and second rings knitted alternately and continuously along the circumferential direction are formed using one (one) string 100, and this first One end 31a to 31c and the other end 32a, 32b of the stator winding 30 are pressed (bound) and fixed to the second member 42 of the end insulating member 40 by one ring and the second ring. doing. For this reason, the operation | work which fixes one edge part 31a-31c of the stator winding | coil 30 and the other edge part 32a, 32b to the 2nd member 42 of the edge part insulation member 40 can be mechanized. Therefore, the stator or the rotating machine can be easily manufactured in a short time, and the working efficiency is improved.

In the first embodiment, the location Q where the second wheel 120 passes through the first wheel 110 is set in the region facing the connecting member 43, but the second wheel 120 is the first wheel 110. The point Q passing through can be set at an appropriate position.
The stator 10 of the rotary machine of 2nd Embodiment is demonstrated with reference to FIGS. FIG. 17 is a plan view of the stator 10 of the rotating machine according to the second embodiment as viewed from one axial side (end insulating member 40 side), and FIG. 18 is the XVIII of FIG. FIG. 19 is a view taken in the direction of arrows (viewed from the inside), and FIG. 19 is a view in the direction of arrows XIX in FIG.
In the stator 10 of the rotating machine according to the second embodiment, the region Q between the two connecting members 43 adjacent to each other in the circumferential direction is preferable, where the second wheel 120 passes through the first wheel 110. Is different from the stator 10 of the rotating machine of the first embodiment except that it is set at the center (including substantially the center) between the two connection members 43, and the other configurations are the same. It is. Therefore, in the following, only the point Q where the second wheel 120 passes through the first wheel 110 will be described.

The operation of fixing one end 31a to 31c of the stator winding 30 and the other end 32a, 32b to the second member 42 of the end insulating member 40 is performed by the second ring 120 being the first. Except that the point Q passing through the ring 110 is set in the vicinity of the hole 42a (or groove 42b), it is the same as in the first embodiment. That is, it is the same as the racing operation of the first embodiment, except for step 6 of the first embodiment.
The operation corresponding to FIG. 10 of the first embodiment is shown in FIG. 20, and the operation corresponding to FIG. 14 of the first embodiment is shown in FIG.
As shown in FIGS. 20 and 21, in the present embodiment, the point Q where the second ring 120 (1) is taken in the first ring 110 (1) is the first ring 110. It is set in a region near the hole 42a (1) (or the groove 42b (1) corresponding to the hole 42a (1)) through which the string 100 passes when forming (1). As a method of setting the location Q where the second ring 120 (1) is taking the first ring 110 (1) in the region near the hole 42a (1) (or groove 42b (1)), For example, it is possible to use a method of adjusting the pulling force of the drawn string 100.

In the rotating machine of the second embodiment, as shown in FIGS. 17 and 18, one end portions 31 a to 31 c of the stator winding 30 are the same as the rotating machine of the first embodiment. The other ends 32 a and 32 b are disposed between the first member 41 and the second member 42 of the end insulating member 40, and the first ring 110 and the second formed by the string 100. It is bound to the second member 42 by the ring 120.
Further, the string 100 is formed outside the second member 42 by passing it through the hole 42a from the inside to the outside, and further passed from the outside to the inside of the second member 42 by passing the groove 42b. By passing the first ring 110 and the string 100 from the inside to the outside through the hole 42a, the second rings 120 formed inside the second member 42 are alternately arranged in the circumferential direction. The first wheel 110 passes through the second wheel 120 adjacent to the first wheel 110 in a circumferential direction (counterclockwise direction in the present embodiment) and passes through the second wheel 120. 120 is formed so as to pass through the first ring 110 adjacent to the second ring 120 in one direction along the circumferential direction. Further, in the present embodiment, the portion Q where the second wheel 120 passes through the first wheel 110 is located in the hole 42a through which the string 100 is passed when the first wheel 110 is formed. A region R that is set in a region between two connection members 43 adjacent to both sides in the circumferential direction and the first ring 110 passes through the second ring 120 is formed when the first ring 110 is formed. It is set in a region in the vicinity of the hole 42a (or the groove 42b corresponding to the hole 42a) through which the string 100 is passed. Thereby, one end part 31a-31c and the other end part 32a, 32b of the stator winding | coil 30 are firmly fixed to the 2nd member 42 in the vicinity of the hole 42a adjacent to the circumferential direction.
In the second embodiment, similar to the first embodiment, the operation of passing the string 100 in the direction along the radial direction through the hole 42a and the groove 42b, and the end insulating portion 40 (stator core 20). Since one end 31a to 31c and the other end 32a, 32b of the stator winding 30 can be fixed to the second member 40 by performing the rotating operation, one end of the stator winding 30 can be fixed. The end portions 31 a to 31 c and the other end portions 32 a and 32 b can be easily fixed to the second member 42 of the end portion insulating member 40.
In particular, in the present embodiment, one end portions 31 a to 31 c of the stator winding 30 and the other end portions 32 a and 32 b are alternately arranged in the circumferential direction using one (one) string 100. The operation of fixing the second insulating member 40 to the second member 42 can be mechanized by the formed first and second wheels. Therefore, the stator or the rotating machine can be easily manufactured in a short time, and the working efficiency is improved.

The stator or the rotating machine of the present invention is not limited to the configuration described in the embodiment, and various changes, additions and deletions are possible.
The rotor inner rotation type electric motor in which the rotor is rotatably supported inside the stator has been described. However, the rotor is configured as a rotor outer rotation type electric motor in which the rotor is rotatably supported outside the stator. You can also In the rotor abduction type electric motor, the end insulating member is provided with a first member on the outer side and a second member on the inner side. Preferably, the string (fixing member) is passed through the hole (first through portion) of the second member from the inside to the outside, and the first ring is passed through the groove (second through portion). , Passed from outside to inside.
Although the electric motor has been described, it is not limited to the electric motor, and can be configured as a generator or the like.
Although a hole is formed in the second member, the first penetrating portion is not limited to the hole, and a groove having an opening on the stator core side can also be used. Moreover, although the groove | channel was formed in the 2nd member, the groove | channel on the opposite side to a stator core can be used as a 2nd penetration part. Furthermore, a groove having an opening opposite to the stator core can be formed in the second member, and the groove can be used as the first through part and the second through part.
The direction from the outside to the inside or the inside to the outside is used as the direction in which the string (fixing member) is passed through the first penetration portion and the second penetration portion of the second member in one direction along the radial direction. be able to.
The fixing member that fixes the end of the stator winding to the second member of the end insulating member is not limited to a string, and various fixing members such as a thread can be used.
One end and the other end of the stator winding are arranged on the end insulating member on one side in the axial direction, but one end of the stator winding is arranged on the end insulating member on the one side in the axial direction In addition, the other end of the stator winding can be disposed on the end insulating member on the other side in the axial direction. In this case, a hole (first penetrating portion) and a groove (second penetrating portion) are formed in the end insulating member on one axial side and the end insulating member on the other axial side, and the stator winding One end portion of the stator winding is fixed to the second member of the end insulating member on one side in the axial direction by the first fixing member, and the other end portion of the stator winding is fixed to the other side in the axial direction by the second fixing member. It fixes to the 2nd member of an edge part insulation member. That is, in the present invention, at least one end of the stator winding is disposed on at least one end insulating member, and at least one end of the stator winding is at least one end insulating member. It is fixed to the second member.
Further, although only one end portion of the stator winding is drawn to the outside, both ends of the stator winding may be drawn to the outside.
Although the 1st penetration part and the 2nd penetration part were provided in the 2nd member, the 2nd penetration part can also be omitted.
The configuration of the end insulating member is not limited to the configuration described in the embodiment.
The operation of fixing the end of the stator winding to the second member of the end insulating member using the string (fixing member) may be performed by an operator or a machine.
In the stator according to the present invention, most of the stator windings may be fixed by the first and second rings formed by the above-described method, and a part of the end of the stator winding ( For example, a stator in which the starting portion and the ending portion of racing are not fixed by the first wheel and the second wheel formed by the method described above is also included.

The present invention can also be configured as a method of fixing the end of the stator winding.
For example,
"(Aspect 1)
A stator core, a stator winding, and end insulating members provided on both axial sides of the stator core;
The stator core is seen in a cross section perpendicular to the axial direction,
A yoke extending along the circumferential direction;
A tooth base extending in the radial direction from the yoke, and a tooth tip provided on the tip side of the teeth base, extending in the circumferential direction and having a tooth tip surface formed on the opposite side of the yoke A plurality of teeth having a portion,
Each of the end insulating members is viewed in a cross section perpendicular to the axial direction,
A plurality of first members that are disposed at locations facing the tooth tips of the teeth and extend along the circumferential direction;
A second member disposed at a location facing the yoke and extending along the circumferential direction;
A plurality of connecting members connected to the first member and the second member, which are arranged at locations facing the teeth base of the teeth and extend along a radial direction;
The stator winding is a method of fixing an end portion of the stator winding in the stator wound around the teeth and the connection member by a concentrated winding method,
As at least one of the end insulating members, an end insulating member having a plurality of first penetrating portions penetrating the second member in the radial direction between two connection members adjacent in the circumferential direction. Use
The second member is opposite to the first member by hooking a fixing member that is fixed at one end and fed out at the other end, and passes through the first penetrating portion from the first member side. A first ring is formed, and the first ring is passed from the opposite side of the second member to the first member side of the second member. A first step of passing through a second wheel adjacent to one side in the circumferential direction with respect to the first wheel;
By hooking the fixing member and passing it through the first ring on the first member side of the second member, the first member side of the second member is moved to the first member side. A second step of forming a second wheel adjacent to the other wheel on the other side in the circumferential direction,
By repeating the first step and the second step, the end portion of the stator winding is connected to the at least one end by the first and second rings alternately formed along the circumferential direction. A method for fixing an end portion of a stator winding, wherein the end portion of the stator winding is fixed to the second member of the part insulating member. Can be configured.
Or
"(Aspect 2)
A method of fixing the end of the stator winding of aspect 1,
As the at least one end insulating member, between the two connecting members adjacent in the circumferential direction, the second second portion is separated from the stator core along the axial direction from the first through portion. Using an end insulating member having a plurality of second penetrating portions penetrating the member in the radial direction,
In the first step, the first ring of the second member is passed through the second penetrating portion from the side opposite to the first member of the second member. A stator that is passed to the member side. Can be configured.
By using the method of fixing the ends of the stator windings according to the first and second aspects, the ends of the stator windings wound by the concentrated winding method can be easily fixed to the end insulating member.

10 Stator 20 Stator Core 21 Yoke 22 Teeth 22a Teeth Base 22b Teeth Tip 22c Teeth Tip Surface 23 Slot 23a Slot Opening 30 Stator Winding 31a, 31b, 31c, 32a, 32b Stator Winding End 40 50 End insulating member 41 First member 41a Inner peripheral surface 42 Second member 42a Hole (first through portion)
42b Groove (second penetrating portion)
42c Auxiliary member 43 Connecting member 60 Slot insulating member 70 Interphase insulating member 100 String (fixing member)
110 First wheel 120 Second wheel 200 Needle 201 Body portion 202 Hook portion Q Location where the second wheel passes through the first wheel R The first wheel passes through the second wheel Where

Claims (11)

With a stator core and stator windings,
The stator core is seen in a cross section perpendicular to the axial direction,
A yoke extending along the circumferential direction;
A tooth base extending in the radial direction from the yoke, and a tooth tip provided on the tip side of the teeth base, extending in the circumferential direction and having a tooth tip surface formed on the opposite side of the yoke A plurality of teeth having a section;
A stator having a plurality of slots formed by the yoke and two teeth adjacent in the circumferential direction;
End insulating members provided on both axial sides of the stator core, and a fixing member,
Each of the end insulating members is viewed in a cross section perpendicular to the axial direction,
A plurality of first members that are disposed at locations facing the tooth tips of the teeth and extend along the circumferential direction;
A second member disposed at a location facing the yoke and extending along the circumferential direction;
A plurality of connecting members connected to the first member and the second member, which are arranged at locations facing the teeth base of the teeth and extend along a radial direction;
The second member of at least one of the end insulating members includes a plurality of first penetrating portions penetrating the second member in the radial direction between two connection members adjacent in the circumferential direction. Have
The stator winding is wound around the teeth and the connecting member by a concentrated winding method,
Furthermore, the fixing member has a plurality of first and second rings formed by being passed through the plurality of first through portions,
The at least one end insulating member has at least one end of the stator winding disposed between the first member and the second member, and the stator winding At least one end is fixed to the second member by the plurality of first rings and the second ring. The stator according to claim 1,
The plurality of first and second wheels are such that the first wheel passes through a second wheel adjacent to one side in the circumferential direction with respect to the first wheel, and the second wheel is The stator is alternately arranged along the circumferential direction so as to pass through the first ring adjacent to one side in the circumferential direction with respect to the second wheel. The stator according to claim 1 or 2,
The fixing member, by being passed through the opposite side of the first member from the first member side to said first penetration portion, the opposite side to the first member of the second member A first ring is formed, and the first ring is passed from the opposite side of the second member to the first member side to the first member side. Is passed through the second ring adjacent to one side in the circumferential direction,
The fixing member is passed from the first member side to the opposite side to the first member through two first through portions that are separated from each other in the circumferential direction. On the first member side, the fixing member between the two first through portions is fixed to the first through portion on one circumferential side of the two first through portions. The second ring is formed on the first member side of the second member by passing through the first ring formed by passing the member. And a stator. The stator according to any one of claims 1 to 3,
The stator, wherein the first penetrating portion is a hole penetrating in the radial direction or a groove having an opening on the stator side and penetrating in the radial direction. The stator according to any one of claims 1 to 4,
The first penetrating portion has two connecting members that are adjacent to each other in the circumferential direction when a line passing through at least a part of the first penetrating portion and the center of the stator core is viewed in a cross section perpendicular to the axial direction. A stator characterized by being provided so as to pass between the first members connected to each of the first members. The stator according to claim 3,
The second member of the at least one end insulating member is separated from the stator core from the first through portion along the axial direction between two connection members adjacent in the circumferential direction. A plurality of second penetrating portions penetrating the second member in the radial direction at locations;
The first ring passes through the second penetrating portion and is passed from the opposite side of the second member to the first member side of the second member. A stator characterized by The stator according to claim 6, wherein
The first penetrating portion is a hole penetrating in the radial direction or a groove having an opening on the stator core side and penetrating in the radial direction, and the second penetrating portion is the stator core. The stator is characterized by being a groove that is open on the opposite side to the radial direction and penetrates in the radial direction. The stator according to claim 6 or 7,
The first penetrating portion and the second penetrating portion have a line passing through at least a part of the first penetrating portion and the center of the stator core and the second penetrating portion when viewed in a cross section perpendicular to the axial direction. A line passing through at least a part of the through portion and the center of the stator core is provided so as to pass between the first members connected to the two connection members adjacent in the circumferential direction. Stator characterized by. The stator according to any one of claims 2 to 8,
A location where the second wheel passes between the first wheels adjacent to one side in the circumferential direction with respect to the second wheel is disposed in a region facing the connection member. And a stator. The stator according to any one of claims 2 to 8,
The location where the second wheel passes between the first wheels adjacent to one side in the circumferential direction with respect to the second wheel is in the region between the two connection members adjacent in the circumferential direction. Stator characterized by being arranged. A stator according to any one of claims 1 to 10 and a rotor, wherein the rotor is rotatably supported so as to have a gap between the teeth tip surface of the stator. Rotating machine characterized by

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