WO2023149252A1 - Stator de machine électrique tournante, machine électrique tournante, procédé de fabrication de stator de machine électrique tournante et procédé de fabrication de machine électrique tournante - Google Patents

Stator de machine électrique tournante, machine électrique tournante, procédé de fabrication de stator de machine électrique tournante et procédé de fabrication de machine électrique tournante Download PDF

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Publication number
WO2023149252A1
WO2023149252A1 PCT/JP2023/001839 JP2023001839W WO2023149252A1 WO 2023149252 A1 WO2023149252 A1 WO 2023149252A1 JP 2023001839 W JP2023001839 W JP 2023001839W WO 2023149252 A1 WO2023149252 A1 WO 2023149252A1
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Prior art keywords
core
stator
electric machine
wire
teeth
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PCT/JP2023/001839
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English (en)
Japanese (ja)
Inventor
雄哉 横手
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2023578478A priority Critical patent/JPWO2023149252A1/ja
Publication of WO2023149252A1 publication Critical patent/WO2023149252A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • This application relates to a stator of a rotating electrical machine, a rotating electrical machine, a method of manufacturing a stator of a rotating electrical machine, and a method of manufacturing a rotating electrical machine.
  • a stator used in a rotating electric machine such as an electric motor or a generator is composed of a stator core and coils mounted in slots between teeth of the stator core.
  • a conductor wire forming the coil is covered with an insulating coating, and the coil is insulated from the stator core.
  • an insulating portion is further provided at the portion where the stator core and the coil are in contact.
  • core the stator core
  • a coil is installed by winding a conductor wire around a core through an insulating portion.
  • the insulating portion disclosed in Patent Document 1 has a terminal accommodating portion (cavity) capable of accommodating an insulation displacement terminal.
  • the conductor wires and pressure contact terminals are inserted, and the teeth are connected by jumper wires.
  • a conductor wire is wound continuously on two teeth in order to reduce the number of connection portions.
  • the stator disclosed in Patent Document 1 uses an insulation displacement terminal and a jumper wire for connecting the teeth.
  • a 9-teeth stator requires 18 insulation displacement terminals and 8 jumper wires. Therefore, a large number of connecting members are required, which increases the cost of materials and raises the price.
  • a problem arises due to the strength of the terminal accommodating portion of the insulating portion.
  • the present invention is intended to solve the above-described problems, and provides a stator for a rotating electrical machine, a rotating electrical machine, and a rotating electrical machine that can prevent the interference of a coil connecting wire in the winding of a conductor wire at the time of forming a coil and reduce the number of connection members. It is an object of the present invention to provide a method for manufacturing a stator and a method for manufacturing a rotating electric machine.
  • a stator for a rotating electrical machine is a stator for a rotating electrical machine that includes a coil wound around a core via an insulating portion, wherein the insulating portion protrudes in one axial direction of the core.
  • One projecting portion and a second projecting portion projecting in the other axial direction of the core are provided.
  • a groove is provided in which a wire is housed, and the connecting wire is arranged in the groove by changing the positions of the first projecting portion and the second projecting portion.
  • the first protrusion and the second protrusion protruding in the axial direction of the core are each provided with a groove for accommodating the connecting wire extending between the coils, the first protrusion and the second protrusion are provided. It is possible to switch between the two protruding portions and arrange them in the groove portion, thereby preventing the interference of the connecting wire of the coil in winding the conductor wire at the time of forming the coil, and reducing the number of connecting members.
  • FIG. 4 is a diagram showing the arrangement of connecting wires of the core portion in which the stators of the rotary electric machine according to Embodiment 1 are arranged in a straight line;
  • FIG. 3 is a perspective view of the core portion in which the stators of the rotary electric machine according to the first embodiment are arranged in a straight line, viewed from the coil side;
  • 4 is a perspective view showing how core plates of the stator of the rotary electric machine according to Embodiment 1 are stacked;
  • FIG. FIG. 3 is a perspective view showing a core after lamination of core plates of the stator of the rotary electric machine according to the first embodiment;
  • 4 is a diagram showing a core plate of the stator of the rotary electric machine according to Embodiment 1;
  • FIG. 3 is a perspective view showing a core after lamination of core plates of the stator of the rotary electric machine according to the first embodiment;
  • 4 is a diagram showing a core plate of the stator of the rotary electric machine according to Embod
  • FIG. 4 is a perspective view showing a first winding frame of the stator of the rotary electric machine according to Embodiment 1;
  • FIG. 4 is a perspective view showing a second winding frame of the stator of the rotary electric machine according to Embodiment 1;
  • FIG. 4 is a perspective view showing a core portion obtained by combining a first winding frame and a second winding frame of the stator of the rotary electric machine according to Embodiment 1;
  • FIG. 3 is a view of the core portion of the stator of the rotating electric machine according to the first embodiment, as seen from the radially outer side;
  • FIG. 2 is a diagram of the core portion of the stator of the rotating electrical machine according to the first embodiment, as seen from the radially inner side;
  • FIG. 3 is a view of the core portion of the stator of the rotating electric machine according to Embodiment 1 as seen from the circumferential direction;
  • FIG. 2 is a view of the core portion of the stator of the rotating electric machine according to the first embodiment, as seen from the axial direction;
  • FIG. 4 is a perspective view showing a method of manufacturing the stator of the rotary electric machine according to Embodiment 1;
  • FIG. 4 is a schematic diagram showing a method for manufacturing the stator of the rotary electric machine according to the first embodiment;
  • FIG. 4 is a diagram showing the arrangement of connecting wires of core portions arranged linearly in the stator of the rotary electric machine according to the first embodiment;
  • FIG. 4 is a flowchart showing a manufacturing process of the stator of the rotary electric machine according to Embodiment 1; 1 is a schematic diagram showing a cross section of a rotating electric machine according to Embodiment 1; FIG. 1 is a schematic diagram showing a cross section of a rotating electric machine according to Embodiment 1; FIG. FIG. 4 is a flowchart showing manufacturing steps of the rotating electric machine according to the first embodiment; FIG. 9 is a schematic diagram showing a method of manufacturing a stator for a rotary electric machine according to Embodiment 2; FIG. 10 is a diagram showing a core plate of a stator of a rotating electric machine according to Embodiment 3; FIG.
  • FIG. 11 is a perspective view showing a core after core plates are laminated in a stator of a rotary electric machine according to Embodiment 3;
  • FIG. 11 is a perspective view showing a core portion of a stator of a rotating electric machine according to Embodiment 4;
  • FIG. 11 is a perspective view showing windings to linearly arranged core portions of a stator of a rotary electric machine according to a fourth embodiment;
  • FIG. 11 is a perspective view of a core portion in which stators of a rotary electric machine according to Embodiment 5 are linearly arranged;
  • FIG. 11 is a perspective view of an exploded member with respect to a core portion in which stators of a rotary electric machine according to Embodiment 5 are linearly arranged;
  • FIG. 11 is a perspective view showing a film portion of a stator of a rotating electric machine according to Embodiment 5;
  • FIG. 11 is a perspective view showing a first winding frame of a stator of a rotating electric machine according to Embodiment 5;
  • FIG. 11 is a perspective view showing a second winding frame of a stator of a rotating electric machine according to Embodiment 5;
  • FIG. 1 is a diagram showing the arrangement of connecting wires of core portions arranged linearly in a stator of a rotating electric machine according to Embodiment 1.
  • FIG. 2 is a perspective view of the core portion viewed from the coil side, which is the opposite side to FIG. 1.
  • the stator 100 includes a core 1, a coil 7, and an upper winding frame 2 and a lower winding frame 3 as insulating portions arranged to insulate the core 1 and the coil 7 from each other.
  • the core 1 includes a yoke portion 11 arranged in an annular shape (however, in each drawing, the yoke portions 11 are shown arranged in a straight line as previously shown), and the yoke portion 11. It has a plurality of teeth 12 protruding in the circumferential direction Z at predetermined intervals on the inner side X2 in the radial direction X.
  • the coil 7 is formed by winding an insulated conductor wire 70 around the teeth 12 .
  • the directions of the stator 100 of the rotating electric machine 1000 are the circumferential direction Z, the axial direction Y, the radial direction X, and the radial direction, respectively, based on the state when the yoke portion 11 of the stator 100 is arranged in an annular shape. Shown as X outside X1 and radial X inside X2. Therefore, a plurality of the yoke portions 11 of the core 1 of the stator 100 are connected and arranged in a linear shape, or in a case where the teeth 12 are deformed and arranged in a reverse warp shape in which the protruding direction of the teeth 12 is reversed.
  • each direction is shown in each figure and explained with reference to the direction of the state when the yoke portion 11 of the stator 100 is arranged in an annular shape. In other embodiments, the directions will be illustrated and described based on the same reference.
  • the core 1 of the stator 100 consists of two types of core plates 6, a first core plate 601 and a second core plate 602, which are formed by punching a thin magnetic steel plate shown in FIG. It is formed by laminating a plurality of sheets alternately in the axial direction Y as shown.
  • the formed core 1 is shown in FIG.
  • the shape of the core plate 6 is shown in FIG.
  • the first core plate 601 and the second core plate 602 both have a yoke portion 11 projecting in the circumferential direction Z on the outside X1 in the radial direction X and teeth 12 projecting on the inside X2 in the radial direction X.
  • the core plate 601 has a connecting hole 1111 at one end of the yoke portion 11 in the circumferential direction Z and a notch portion 1112 at the other end. Symmetrically with respect to Z, the yoke portion 11 has a notch portion 1112 at one end portion in the circumferential direction Z and a connecting hole 1111 at the other end portion. be done.
  • the connecting portion 111 is formed by connecting the connecting hole 1111 of the first core plate 601 and the notch portion 1112 of the second core plate 602, or connecting the connecting hole 1111 of the second core plate 602 and the first core plate 601.
  • the notch portions 1112 of the core portions are mated and alternately overlapped, and by inserting a connecting pin into the connecting hole 1111, the adjacent core portions can be connected in a deformable state.
  • this connecting pin may be removed from stator 100 in a state in which it is incorporated as rotating electric machine 1000 .
  • the core 1 is formed by connecting yoke portions 11 of a plurality of core portions 60 in the circumferential direction Z at connecting portions 111 .
  • the core 1 is configured by connecting nine core portions 60 with connecting portions 111 .
  • the yoke portion 11 of the core 1 can be freely bent at the connecting portion 111, and thereby formed to be deformable in a linear shape or in a reverse warp shape in which the direction of protruding in the radial direction X of the teeth 12 is reversed. be done.
  • the method of connecting the core portion 60 at the yoke portion 11 is not limited to the method of connecting the core portion 60 with the structure described above, and may be any other method as long as it can be connected in a deformable manner.
  • the core portions 60 arranged in the circumferential direction Z are arranged in this order from the winding start side of the conductor wire 70: the first core portion 61, the second core portion 62, the second A third core portion 63 , a fourth core portion 64 , a fifth core portion 65 , a sixth core portion 66 , a seventh core portion 67 , an eighth core portion 68 and a ninth core portion 69 .
  • the power supply is composed of a three-phase alternating current of U-phase, V-phase, and W-phase, and has a star-connection structure in which different phases are arranged for each core portion 60 adjacent in the circumferential direction Z.
  • the first core portion 61 is the U phase (U1)
  • the second core portion 62 is the V phase (V1)
  • the third core portion 63 is the W phase (W1)
  • the fourth core portion 64 is the U phase.
  • the fifth core portion 65 is the V phase (V2)
  • the sixth core portion 66 is the W phase (W2)
  • the seventh core portion 67 is the U phase (U3)
  • the eighth core portion 68 is The V phase (V3)
  • the ninth core portion 69 is the W phase (W3).
  • each of the core portions 61 to 69 has the coil 7 and the upper winding frame 2 and the lower winding frame 3 as the insulating portion installed on the core portions 61 to 69, regardless of whether or not they are installed. be described.
  • FIG. 5 shows one of the core plates 6.
  • the core 1 is formed by stacking the core plates 6, and each part of the core portion 60 will be described with reference to FIG.
  • An outer peripheral surface 113 is defined as a surface in the axial direction Y on the outer side X1 in the radial direction X of the yoke portion 11 .
  • a first concave portion 114 extending in the axial direction Y is formed in the outer peripheral surface 113 of the yoke portion 11 .
  • the first recess 114 is used for positioning when attaching the core 1 to the winding machine forming the coil 7 .
  • the teeth 12 are provided with shoe portions 13 protruding in the circumferential direction Z at the tips of the inner sides X2 in the radial direction X.
  • the axial Y surfaces at both ends in the circumferential direction Z of the teeth 12 are defined as first side surfaces 121
  • the surfaces along the axial direction Y at the radially inner X2 ends of the teeth 12 are defined as tip surfaces 122 .
  • a second side surface 131 is a surface along the axial direction Y on the outer side X1 in the radial direction X of the shoe portion 13 .
  • the first side surface 121 , the second side surface 131 and the tip surface 122 are side surfaces along the axial direction Y of the teeth 12 .
  • a region surrounded by the inner peripheral surface 112, the first side surface 121 and the second side surface 131 becomes the slot 14 around which the conductor wire 70 is wound to form the coil 7. As shown in FIG.
  • FIG. 6 the upper winding frame 2 is composed of a first projecting portion 21 and a first leg portion 22 .
  • the lower winding frame 3 is composed of a second projecting portion 31 and a second leg portion 32 .
  • FIG. 8 is a diagram showing a state in which the upper winding frame 2 and the lower winding frame 3 are installed on the core portion 60, and the first projecting portion 21 is formed so as to project from one side of the core portion 60 in the axial direction Y. As shown in FIG.
  • the second projecting portion 31 is formed so as to project from the other side in the axial direction Y from the core portion 60 .
  • the structure of each groove provided in the core portion 60 is shown in FIGS. 9 to 12.
  • FIG. 9 is a view of the core portion 60 viewed from direction A in FIG.
  • a groove portion 9 having a plurality of stages in the axial direction Y is formed on the outer peripheral surface 301 of the outer side X1 in the radial direction X of 31 .
  • the groove portion 91 of the upper winding frame 2 is formed in four stages of a first groove portion 911, a second groove portion 912, a third groove portion 913, and a fourth groove portion 914 from the side away from the core 1 in the axial direction Y. .
  • the groove portion 92 of the lower winding frame 3 is formed in four stages of a first groove portion 921, a second groove portion 922, a third groove portion 923, and a fourth groove portion 924 from the side away from the core 1 in the axial direction Y. .
  • Each groove 911, 912, 913, 914, 921, 922, 923, 924 is formed extending in the circumferential direction Z while being inclined in the axial direction Y. As shown in FIG.
  • the position in the axial direction Y on the side of the second core portion 62 adjacent to the fourth groove portion 914 of the first core portion 61 in the circumferential direction Z, and the position in the axial direction Y on the side of the second core portion is formed so as to face and be close to each other.
  • the position in the axial direction Y on the side of the second core portion 62 adjacent to the third groove portion 913 of the first core portion 61 in the circumferential direction Z and the position of the second groove portion 912 in the second core portion 62 It is formed so that the axial direction Y position of the first core portion 61 side adjacent to the direction Z faces and is close to each other.
  • the position in the axial direction Y on the side of the second core portion 62 adjacent to the second groove portion 912 of the first core portion 61 in the circumferential direction Z, and the position of the first groove portion 911 of the second core portion 62 in the axial direction Y It is formed so that the axial direction Y position of the first core portion 61 side adjacent to the direction Z faces and is close to each other.
  • the first protrusion 21 of the upper winding frame 2 continues to the first groove 911 farthest from the core 1 in the axial direction Y, and the diameter of the first protrusion 21 It has an introduction groove portion 915 that communicates from the outside X1 in the direction X to the inside X2 in the radial direction X.
  • the first projecting portion 21 of the upper winding frame 2 continues to the fourth groove portion 914 on the side closest to the core 1 in the axial direction Y, and extends from the inner side X2 in the radial direction X of the first projecting portion 21. It has a lead-out groove portion 916 formed in communication with the outer side X1 in the radial direction X. As shown in FIG.
  • the introduction groove portion 915 and the lead-out groove portion 916 are formed so as to communicate from the outer peripheral surface 201 of the first projecting portion 21 to the inner peripheral surface 202 on the inner side X2 in the radial direction X. Further, as shown in FIG. 7, the second projection 31 of the lower winding frame 3 continues to the first groove 921 farthest from the core 1 in the axial direction Y, and the diameter of the second projection 31 It has an introduction groove portion 925 formed in communication from the outside X1 in the direction X to the inside X2 in the radial direction X.
  • the second projecting portion 31 of the lower winding frame 3 continues to the fourth groove portion 924 closest to the core 1 in the axial direction Y, and extends from the inner side X2 of the second projecting portion 31 in the radial direction X. It has a lead-out groove portion 926 formed in communication with the outer side X1 in the radial direction X. As shown in FIG. Therefore, the introduction groove portion 925 and the lead-out groove portion 926 are formed so as to communicate from the outer peripheral surface 301 of the second projecting portion 31 to the inner peripheral surface 302 on the inner side X2 in the radial direction X.
  • the first grooves 911 and 921, the second grooves 912 and 922, the third grooves 913 and 923 and the fourth grooves 914 and 924 are arranged between the coils 7 of different teeth 12. holds a crossover wire 8 connecting the .
  • the crossover wire 8 is a conductor wire 70 continuous with the coils 7 .
  • the lead-in grooves 915 and 925 hold the conductor wire 70 to be wound around the teeth 12 from the outer side X1 in the radial direction X of the core 1 to the inner side X2 in the radial direction X thereof.
  • the lead-out grooves 916 and 926 are used to guide the connecting wire 8 after forming the coil 7 by winding the conductor wire 70 around the teeth 12 from the inner side X2 in the radial direction X of the core 1 to the outer side X1 in the radial direction X. Hold and prevent loosening.
  • the first leg 22 of the upper reel 2 and the second leg 32 of the lower reel 3 are connected to the inner peripheral surface 112 of the core portion 60, the first side surface 121 and the second is configured to cover the side surface 131 of the That is, the first leg 22 and the second leg 32 fit into the slot 14 to insulate the coil 7 and the core 1 .
  • the first leg 22 and the second leg 32 have substantially the same length in the axial direction Y.
  • the first leg 22 and the second leg 32 need only provide insulation between the core 1 and the coil 7, and the axial direction Y of the first leg 22 and the second leg 32 The length can be changed as appropriate.
  • FIG. 10 is a view of the core portion 60 viewed from direction B in FIG.
  • FIG. 11 is a view of the core portion 60 viewed from direction C in FIG. 8, showing side surfaces of the groove portions 9 provided in the first projecting portion 21 and the second projecting portion 31.
  • FIG. 12 is a view of the core portion 60 viewed from direction D in FIG. state is shown.
  • FIG. A conductor wire 70 is an electric wire for forming the coil 7 .
  • three conductor wires 70 are used as a first conductor wire 71, a second conductor wire 72 and a third conductor wire 73 for each phase of the power supply.
  • the wires from which the winding of the coil 7 is started are a first winding start wire 711, a second winding start wire 721, and a third winding start wire 731 for each phase.
  • first winding starting wire 711, the second winding starting wire 721, and the third winding starting wire 731 are moved from the outer side X1 to the inner side X2 in the radial direction X of the core 1, and the power supply connected to the power supply When used as lines, they are referred to as a first power line 713 , a second power line 723 and a third power line 733 .
  • first power line 713, the second power line 723, and the third power line 733 are indicated by dashed lines, and will be described in detail later.
  • first winding end wire 712 the wires to which the winding of the coil 7 is finished are referred to as a first winding end wire 712 , a second winding end wire 722 , and a third winding end wire 732 .
  • First winding end 712 , second winding end 722 and third winding end 732 are connected to form neutral point 700 .
  • the crossover wire 8 is formed of a conductor wire 70 .
  • the crossover wires 8 include a first crossover wire 81 , a second crossover wire 82 , a third crossover wire 83 , a fourth crossover wire 84 , a fifth crossover wire 85 and a sixth crossover wire 86 .
  • the first connecting wire 81 connects the coil 7 of the first core portion 61 and the coil 7 of the fourth core portion 64 which is three apart in the circumferential direction Z.
  • the second connecting wire 82 connects the coil 7 of the second core portion 62 and the coil 7 of the fifth core portion 65 which is three apart in the circumferential direction Z.
  • the third connecting wire 83 connects the coil 7 of the third core portion 63 and the coil 7 of the sixth core portion 66 which is three apart in the circumferential direction Z.
  • the fourth crossover wire 84 connects the coil 7 of the fourth core portion 64 and the coil 7 of the seventh core portion 67 .
  • the fifth connecting wire 85 connects the coil 7 of the fifth core portion 65 and the coil 7 of the eighth core portion 68 which is three apart in the circumferential direction Z.
  • the sixth crossover wire 86 connects the coil 7 of the sixth core portion 66 and the coil 7 of the ninth core portion 69 which is separated by three in the circumferential direction Z.
  • the first conductor wire 71 is introduced from the outside X1 to the inside X2 in the radial direction X using the introduction groove portion 915 of the first core portion 61 .
  • the second conductor wire 72 and the third conductor wire 73 are also introduced from the outside X1 in the radial direction X using the introduction grooves 915 of the second core portion 62 and the third core portion 63, respectively.
  • a nozzle unit in which three winding nozzles 51, 52 and 53 are integrated is used to simultaneously wind the respective teeth 12 in the directions of arrows 511, 521 and 531.
  • FIG. 13 shows an example of winding around the seventh core portion 67, the eighth core portion 68 and the ninth core portion 69).
  • each winding nozzle 51, 52, 53 is moved in the direction of arrow E, and in order to perform the next winding process, the first conductor wire 71 is attached to the fourth core portion 64, The second conductor wire 72 is moved to the fifth core portion 65, and the third conductor wire 73 is moved to the sixth core portion 66, respectively.
  • the first connecting wire 81 connecting the coil 7 of the first core portion 61 and the coil 7 of the fourth core portion 64 extends from the lead-out groove portion 926 to the second line.
  • the third core portion 63 held in the fourth groove portion 924 of the one core portion 61, held in the third groove portion 923 of the second core portion 62 connected in the circumferential direction Z, and further connected in the circumferential direction Z is held in the second groove portion 922 of, further held in the first groove portion 921 of the fourth core portion 64 connected in the circumferential direction Z, from the introduction groove portion 925 connected to the first groove portion 921, the fourth It is introduced from the outside X1 to the inside X2 in the radial direction X of the core portion 64 .
  • the second connecting wire 82 connecting the coil 7 of the second core portion 62 and the coil 7 of the fifth core portion 65 extends from the lead-out groove portion 926 to the fourth groove portion of the second core portion 62. 924, held in the third groove portion 923 of the third core portion 63 connected in the circumferential direction Z, and further held in the second groove portion 922 of the fourth core portion 64 connected in the circumferential direction Z, Furthermore, it is held in the first groove portion 921 of the fifth core portion 65 connected in the circumferential direction Z, and from the introduction groove portion 925 connected to the first groove portion 921, the outer side X1 in the radial direction X of the fifth core portion 65 is introduced into the inside X2 from.
  • the third connecting wire 83 connecting the coil 7 of the third core portion 63 and the coil 7 of the sixth core portion 66 extends from the lead-out groove portion 926 to the fourth groove portion 924 of the third core portion 63. , held in the third groove portion 923 of the fourth core portion 64 connected in the circumferential direction Z, held in the second groove portion 922 of the fifth core portion 65 connected in the circumferential direction Z, and further From the introduction groove portion 925 held in the first groove portion 921 of the sixth core portion 66 connected in the circumferential direction Z and connected to the first groove portion 921, from the outer side X1 in the radial direction X of the sixth core portion 66 Introduced inside X2.
  • FIG. 13 three winding nozzles 51, 52, and 53 are used to form a fourth core portion 64, a fifth core portion 65, and a sixth core portion 66.
  • a first conductor wire 71, a second conductor wire 72 and a third conductor wire 73 are simultaneously wound around the respective teeth 12 in the directions of arrows 511, 521 and 531, respectively.
  • FIGS. 1, 2 and 9 after forming the coil 7 on each tooth 12 of the fourth core portion 64, the fifth core portion 65 and the sixth core portion 66, the first The position is changed to the upper winding frame 2 having the first projecting portion 21 on the opposite side in the axial direction Y from the crossover, and the second crossover is started.
  • the first conductor wire 71, the second conductor wire 72, and the third conductor wire 73 are inserted into the lead-out grooves 916 of the fourth core portion 64, the fifth core portion 65, and the sixth core portion 66, respectively. It is held so as to prevent loosening and led out from the inner side X2 in the radial direction X to the outer side X1. Then, each winding nozzle 51, 52, 53 is moved in the direction of arrow E, and the first conductor wire 71 is connected to the seventh core portion 67 and the second conductor wire 72 is moved to perform the next winding process. to the eighth core portion 68, and the third conductor wire 73 to the ninth core portion 69, respectively.
  • the fourth crossover wire 84 connecting the coil 7 of the fourth core portion 64 and the coil 7 of the seventh core portion 67 extends from the lead-out groove portion 916 to the fourth groove portion 914 of the fourth core portion 64. held in the third groove portion 913 of the fifth core portion 65 connected in the circumferential direction Z, held in the second groove portion 912 of the sixth core portion 66 connected in the circumferential direction Z, and further held in the second groove portion 912 of the sixth core portion 66 connected in the circumferential direction Z It is held in the first groove portion 911 of the seventh core portion 67 connected in the direction Z, and from the introduction groove portion 915 connected to the first groove portion 911, from the outside X1 in the radial direction X of the seventh core portion 67 to the inside Introduced in X2.
  • the fifth connecting wire 85 connecting the coil 7 of the fifth core portion 65 and the coil 7 of the eighth core portion 68 extends from the lead-out groove portion 916 to the fourth groove portion of the fifth core portion 65. 914, held in the third groove portion 913 of the sixth core portion 66 connected in the circumferential direction Z, and further held in the second groove portion 912 of the seventh core portion 67 connected in the circumferential direction Z, Furthermore, it is held in the first groove portion 911 of the eighth core portion 68 connected in the circumferential direction Z, and from the introduction groove portion 915 connected to the first groove portion 911, the outer side X1 in the radial direction X of the eighth core portion 68 is introduced into the inside X2 from.
  • the sixth connecting wire 86 connecting the coil 7 of the sixth core portion 66 and the coil 7 of the ninth core portion 69 extends from the lead-out groove portion 916 to the fourth groove portion 914 of the sixth core portion 66. , held in the third groove portion 913 of the seventh core portion 67 connected in the circumferential direction Z, held in the second groove portion 912 of the eighth core portion 68 connected in the circumferential direction Z, and further From the introduction groove portion 915 held in the first groove portion 911 of the ninth core portion 69 connected in the circumferential direction Z and connected to the first groove portion 911, from the outer side X1 in the radial direction X of the ninth core portion 69 Introduced inside X2. Then, in the same manner as described above, as shown in FIG. A first conductor wire 71, a second conductor wire 72 and a third conductor wire 73 are simultaneously wound around the respective teeth 12 in the directions of arrows 511, 521 and 531, respectively.
  • a connection process such as brazing or soldering may be used as a method of assembling.
  • step S2 the coil 7 is formed by winding the conductor wire 70 around the tooth 12 in step S1.
  • step S2 it is determined whether or not the conductor wire 70 has been wound around all the teeth 12. If there are any remaining teeth 12, in step S3, a crossover wire 8 is applied to the teeth 12 next to the third tooth, and in step S1.
  • step S4 the neutral point 700 is connected in step S4, and the wiring process of the stator 100 is completed.
  • the winding of the conductor wire 70 around the core portion 60 of the stator 100 shown in FIG. 1 is completed.
  • the first connecting wire 81, the second connecting wire 82, and the third connecting wire 83 are connected to the second winding frame 3, which is the opposite side of the power source, and the first winding frame 2, which is the connecting side.
  • the fourth crossover wire 84, the fifth crossover wire 85, and the sixth crossover wire 86 are arranged is shown in FIG.
  • a first connecting wire 81, a second connecting wire 82, and a third connecting wire 83 are provided on the connection side of the power source, which is the upper winding frame 2, and a second connecting wire 81, a second connecting wire 82, and a third connecting wire 83 are provided on the opposite side of the connection, which is the lower winding frame 3 having the second projecting portion 31. It is also possible to arrange four crossover wires 84, a fifth crossover wire 85, and a sixth crossover wire 86. FIG. However, the following description will be given using FIG. 1 as an example.
  • the first conductor wire 71 is a conductor wire that is continuous without being cut as a first winding starting wire 711, the coil 7 of the first core portion 61, the first connecting wire 81, the second The coil 7 of the fourth core portion 64 , the fourth crossover wire 84 , the coil 7 of the seventh core portion 67 , and the first winding end wire 712 .
  • the second conductor wire 72 is a conductor wire that is continuous without being cut, and includes the second winding start wire 721, the coil 7 of the second core portion 62, the second connecting wire 82, and the fifth core portion 65. They are the coil 7 , the fifth connecting wire 85 , the coil 7 of the eighth core portion 68 , and the second winding end wire 722 .
  • the third conductor wire 73 is a conductor wire that is continuous without being cut, and includes the third winding start wire 731, the coil 7 of the third core portion 63, the third connecting wire 83, and the sixth core portion 66.
  • first winding start wire 711, the second winding start wire 721, and the third winding start wire 731 as power supply lines is performed.
  • These three winding starting wires 711, 721 and 731 are arranged so that when the stator 100 is formed into an annular shape, the power supply wire will not be damaged in the next step. It is necessary to remove each power wire from the lead-in groove portion 915 and arrange it inside X2 in the radial direction X of the stator 100 . After that, in the final process, a tube is covered to maintain insulation and wiring is performed.
  • the starting side and the ending side of the first winding and the second winding are opposite to each other in the axial direction Y, but the winding of the third winding is on the starting side. and the winding end side are common, that is, they are on the same side in the axial direction Y.
  • the number of turns of only the third winding is half a turn more or less than the number of turns of the first and second windings. Depending on the number of turns specified, this difference can affect the electrical properties.
  • the core shape of the tooth 12 is changed to make the electrical characteristics common, and the third winding is ended on the side opposite to the winding start side so as not to affect the number of turns.
  • FIG. 17 is a schematic diagram showing a cross-sectional view of the rotary electric machine 1000.
  • Rotating electric machine 1000 includes stator 100 of Embodiment 1, rotor 102 disposed on the inner peripheral side of stator 100 with a predetermined gap, and housing 101 fixing rotor 102 and stator 100 .
  • the rotor 102 is rotatably held by fitting a shaft 1021 to an inner ring of a bearing 1011 provided in the housing 101 .
  • 18 is a schematic diagram showing the FF section of FIG. 17.
  • FIG. 17 is a schematic diagram showing the FF section of FIG. 17.
  • the permanent magnets 1022 are embedded in a V shape in the rotor core 1023 fixed to the outer circumference of the shaft 1021, the permanent magnets 1022 may be arranged in another shape such as a linear shape. Permanent magnet 1022 may not be embedded, and may be attached to the outer peripheral surface of rotor core 1023 and arranged to face stator 100 .
  • step S11 a magnetic steel plate is punched out in step S11 to alternately punch out two kinds of groups of core pieces, and a plurality of groups are laminated in the axial direction Y and connected by the connecting portion 111 of the yoke portion 11 to form the core 1 . do.
  • step S12 the upper winding frame 2 and the lower winding frame 3, which are formed by injection molding of insulating resin, for example, are attached to the core 1. As shown in FIG.
  • the first leg portion 22 of the upper winding frame 2 and the second leg portion 32 of the lower winding frame 3 are inserted and fitted into the slots 14 from both ends in the axial direction Y of the core 1, and the upper winding frame 2 and the lower winding frame 3 are attached to the core. Attach to 1.
  • step S13 wiring processing of the stator 100 shown in FIG. 16 is performed.
  • the coil 7 is formed in the core portion 60 of the stator 100 as shown in FIG. 1, and the wiring is completed.
  • step S14 the core 1 of the stator 100 formed in this way is formed into an annular shape, and the connecting wire 8 is molded so as to be accommodated in the groove portion 9.
  • both ends of the coupled core 1 are welded to complete the stator 100.
  • step S16 stator 100 is fixed to the housing of rotating electrical machine 1000, and in step S17, rotor 102 is arranged to face stator 100, and rotating electrical machine 1000 is completed.
  • the stator 100 has nine core portions 60 . A similar manufacturing method is possible by repeating the manufacturing method every three teeth.
  • the number of magnetic poles generated by permanent magnets 1022 of rotor 102 of rotating electrical machine 1000 shown in FIG. 18 is not limited to six poles as shown in FIG.
  • the number of teeth is 3 ⁇ N (N is an integer of 2 or more)
  • the number of magnetic poles is ((3 ⁇ 1) ⁇ N) may be used.
  • the number of magnetic poles may be ((9 ⁇ 1) ⁇ N).
  • the number of magnetic poles may be ((6 ⁇ 1) ⁇ N) pieces.
  • the stator of the rotary electric machine according to Embodiment 1 of the present application is the stator 100 of the rotary electric machine 1000 including the coil 7 wound around the core 1 via the insulating portion, and the insulating portion is , a first projecting portion 21 projecting in one axial direction of the core 1 and a second projecting portion 31 projecting in the other axial direction of the core 1, the first projecting portion 21 and the second projecting portion
  • Each of the projecting portions 31 is provided with a groove portion 9 in which a connecting wire 8 extending between the coils 7 is accommodated. It is arranged in the groove portion 9 .
  • the first projecting portion 21 and the second projecting portion 31 projecting in the axial direction of the core 1 are each provided with the groove portion 9 in which the connecting wire 8 extending between the coils 7 is housed,
  • the positions of the one projecting portion 21 and the second projecting portion 31 can be changed and arranged in the groove portion 9, and interference of the connecting wire 8 of the core portion 60 when the conductor wire 70 is wound when forming the coil is prevented.
  • the number of connecting members can be reduced.
  • the groove portion 9 is formed so as to be inclined in the axial direction, the inclination of the groove portion 9 can reliably prevent the interference of the connecting wire 8 of the core portion 60 .
  • the grooves 9 of the first projecting portion 21 and the second projecting portion 31 of the insulating portion are arranged in order from the side away from the core 1 in the axial direction to the first grooves 911 and 921, the second grooves 912 and 922, the second grooves 912 and 922, and the The crossover wire 8 is formed in four stages of three groove portions 913 and 923 and fourth groove portions 914 and 924, and connects the coils 7 of the teeth 12 that are three circumferentially apart. From the first groove portions 911 and 921 to the distant teeth 12, the second groove portions 912 and 922 and the third groove portions 913 and 923 of the first projection portion 21 or the second projection portion 31 which are sequentially adjacent in the circumferential direction.
  • the conductor wire 70 is wound between the teeth 12 that are three apart in the circumferential direction to form the coil 7, so that the connecting wires of the other phases are formed. 8 does not interfere with the winding start line of the conductor wire, the material cost and processing cost of the connecting member can be suppressed, and a stator with stable electrical characteristics can be obtained in which pulsation and vibration can be prevented.
  • first projecting portion 21 and the second projecting portion 31 of the insulating portion are continuous with the groove portion 9 closest to the core 1 in the axial direction, and the first projecting portion 21 and the second projecting portion Since the introduction groove portions 915 and 925 are formed to communicate from the radially outer side to the radially inner side of the tooth 31 and hold the conductor wire 70 , the conductor wire 70 can be easily guided to the tooth 12 side.
  • first projecting portion 21 and the second projecting portion 31 of the insulating portion are continuous with the groove portion 9 on the farthest side from the core 1 in the axial direction, and the first projecting portion 21 and the second projecting portion Since the lead-out groove portions 916 and 926 are continuously formed from the radially inner side to the radially outer side of the portion 31 and hold the connecting wire 8, the connecting wire 8 is separated from the first projecting portion 21 and the second projecting portion. It can be easily guided to the place where the groove 9 of 31 is formed.
  • the position in the axial direction Y where the conductor wire 70 is led out from the lead-out groove portion 916 is connected to the coil 7 to which the conductor wire 70 is transferred.
  • the conductor wire 70 is arranged closer to the core 1 than the position in the axial direction Y where the conductor wire 70 is introduced into the introduction groove portion 915 . Thereby, the conductor wires 70 of each phase can be introduced from the introduction groove portion to the tooth portion without interfering with the conductor wires 70 of other phases.
  • the conductor wires 70 of a plurality of phases are wound around the coil 7 at the same time, and the connecting wires 8 extending from the lead-out grooves 916 and 926 are connected to the lead-in grooves 915 and 925 on the side far from the core 1 in the axial direction.
  • the connecting wires 8 extending from the lead-out grooves 916 and 926 are connected to the lead-in grooves 915 and 925 on the side far from the core 1 in the axial direction.
  • the first projecting portion 21 and the second projecting portion 31 of the insulating portion have the power line in the groove portion 9 on the farthest side from the core 1 in the axial direction, the power line is arranged in the radial direction of the core 1. It can be easily guided inside.
  • the yoke portion 11 is formed to be linearly deformable, the conductor wire 70 can be easily wound around the teeth 12 of the core 1 .
  • the yoke portion 11 of the core 1 is linearly deformed and arranged, and the three conductor wires 70 are connected in the circumferential direction by the three winding nozzles.
  • the three conductor wires 70 are connected to the first projections 21 or the second projections 31 of the three teeth 12 . , and moved to teeth 12 that are three teeth apart in the circumferential direction. to form the coil 7.
  • the number of connecting members can be reduced, and the product cost can be suppressed.
  • Embodiment 2 In the first embodiment described above, the method of forming the coil 7 by deforming and arranging the yoke portions 11 of the core 1 into a straight line and winding the conductor wire 70 around the teeth 12 has been shown, but the method is not limited to this. Instead, as another method, a case where the yoke portion 11 of the core 1 is deformed in a reverse warp shape by using the connecting portion 111 to reverse the projecting direction in the radial direction X of the teeth 12 will be described.
  • FIG. 20 is a schematic diagram showing a method of manufacturing stator 100 according to the second embodiment.
  • the stator 100 is the same as the stator 100 of the first embodiment except that the winding method is different.
  • the winding machine 400 has a hexagonal chuck mechanism 40 .
  • the chuck mechanism 40 has chucks 41, 42, 43, 44, 45, and 46, which are six chucks.
  • Winding nozzles 54 , 55 , 56 for winding the conductor wire 70 are installed at positions facing the chucks 41 , 42 , 43 in the chuck mechanism 40 .
  • Each of the winding nozzles 54 , 55 , 56 is rotated by a rotation axis T ⁇ b>1 , a rotation axis T ⁇ b>2 , and a rotation axis T ⁇ b>3 to wind the conductor wire 70 around each tooth 12 .
  • the core 1 fixes the first core portion 61, the second core portion 62, and the third core portion 63 to the chucks 41, 42, and 43, respectively, as shown in FIG.
  • the winding nozzles 54 , 55 , 56 are rotated about the rotation axes T ⁇ b>1 , T ⁇ b>2 , T ⁇ b>3 to wind the conductor wire 70 around each tooth 12 to form the coil 7 .
  • the winding nozzles 54, 55, and 56 are moved back and forth up and down, and the chuck mechanism 40 is rotated, so that the crossover wire 8 can be pulled in the same manner as in the first embodiment. , to a predetermined core portion 60 .
  • the chuck mechanism 40 rotates at a pitch of 60°. That is, the fourth core portion 64 is moved to the position of the chuck 41 to which the first core portion 61 was fixed in the first winding by repeating the rotation of 60° pitch three times. Other core portions 60 also move at the same time. The core portion 60 is not fixed at the position of the chuck 45 because the core portion 60 is discharged from the position of the chuck 46 .
  • the yoke portion 11 of the core 1 is deformed into a reverse warp shape, and the three conductor wires 70 are continuously formed in the circumferential direction by the three winding nozzles.
  • the chuck mechanism 40 is rotated to rotate the three conductor wires to the first protrusions of the three teeth 12. 21 or the groove 9 of the second projecting portion 31 as the crossover wire 8, and moves to the tooth 12 which is three teeth away in the circumferential direction.
  • a coil can be formed by winding the conductor wire 70 at high speed. As a result, the number of connecting members can be reduced, and the product cost can be suppressed.
  • the coil 7 can be formed by winding the conductor wire 70 around the teeth 12 while securing a wide space between the teeth 12 adjacent in the circumferential direction Z. That is, as shown in FIG. 20, the rotation axes T1, T2 and T3 of the winding nozzles 54, 55 and 56 can always be oriented toward the tooth 12 side. Therefore, the conductor wire 70 can be wound around the teeth 12 at high speed, and the winding cycle time can be shortened.
  • the method of manufacturing the stator of the rotary electric machine shown in the second embodiment can also be performed in the same way in the third embodiment.
  • FIG. FIG. 21 is a diagram showing a core plate of a stator according to Embodiment 3.
  • the core plate 603 has a structure in which the ends of the yoke portions 11 in the circumferential direction are thinly connected by the connecting portion 116 .
  • one core plate 603 is constructed by connecting nine sets of yoke portions 11 and teeth 12 . Since the structure other than connecting portion 116 between core portions 60 is the same as core plate 601 of FIG. 5 in Embodiment 1, detailed description thereof is omitted.
  • FIG. 22 is a perspective view showing core 1 after stacking core plates 603 used in stator 100 according to the third embodiment.
  • FIG. 22 corresponds to FIG. 4 in Embodiment 1, but the connection between the core portions 60 is performed by thin-walled connection by the connection portion 116 .
  • the core portion 60 connected in this manner is formed by laminating a plurality of core plates 603 formed by punching thin magnetic steel plates in the axial direction Y.
  • the connecting portion 116 the yoke portion 11 of the core portion 60 cannot be freely bent, but can be connected and held in a straight line.
  • the connecting portion 116 is plastically deformed and bent into an annular shape to complete the stator 100 .
  • connection between the core portions 60 is achieved only by stacking the core plates 603, and the connection structure is simple, and the manufacturing cost can be reduced.
  • the core portion 60 according to the third embodiment can also be provided with the insulating member shown in the first embodiment.
  • the stator 100 can be manufactured in the same manner as in the first embodiment, and the same effects as in the first embodiment can be obtained.
  • FIG. 23 is a perspective view showing a core of a stator according to Embodiment 4.
  • FIG. 23 is formed by stacking a plurality of core plates 604 formed by punching thin magnetic steel plates in the axial direction Y, and the core portion 60 alone has a function of connecting with other core portions 60. It is a split core state that does not have.
  • the core plate 604 has a structure that does not have a connecting portion in the circumferential direction of the yoke portion 11 .
  • FIG. 24 is a perspective view showing a state in which the divided core portions 60 are arranged in a straight line and fixed to a fixing jig 401, covered with an insulating member and wound with a conductor wire 70.
  • FIG. Fixing of the fixing jig 401 of the core portion 60 is performed using the first concave portion 114 .
  • the core portion 60 is fixed by fitting the first concave portion 114 to a rail-shaped projection (not shown) provided on the fixing jig 401 , and the yoke portion 11 of the core portion 60 is securely attached to the fixing metal fitting 401 .
  • Any other method may be used as long as it is a method of fixing to An insulating member is disposed on the core portion 60 and wound while the core portion 60 is attached to the fixing bracket.
  • the core portion 60 is arranged and held in a straight line on the fixing jig 401, and the same winding as in the first embodiment is continuously performed. After the winding process is completed, the core portion 60 is removed from the fixing jig 401, the nine teeth are arranged in an annular shape, and the core portions 60 are fixed to form the stator 100.
  • FIG. A fixing method between the core portions 60 is performed by welding, shrink fitting, or the like. There is also a method of connecting and holding by using an insulating member without using the fixing jig 401 .
  • the core plate 604 can be punched from the magnetic steel plate in the same shape, and the die for punching the core plate 604 can be realized with one type of small die, so that the manufacturing cost can be reduced. can be done.
  • the core portion 60 according to the fourth embodiment can be provided with the insulating member shown in the first embodiment.
  • the stator 100 can be manufactured in the same manner as in the first embodiment, and the same effects as in the first embodiment can be obtained.
  • FIG. 25 is a perspective view in which the yoke portions 11 of the core 1 are linearly deformed and arranged in the stator 100 of the rotary electric machine according to the fifth embodiment.
  • a state in which an upper winding frame 20, a lower winding frame 30 and a film portion 230 as insulating portions are attached is shown.
  • FIG. 26 is an exploded perspective view showing a state before mounting the upper winding frame 20, the lower winding frame 30 and the film portion 230, which are the constituent parts of FIG.
  • FIG. 27 is a perspective view showing a state in which only the film portion 230 is taken out.
  • FIG. 28 is a perspective view of the upper winding frame 20 and
  • FIG. 29 is a perspective view of the lower winding frame 30 according to the fifth embodiment.
  • stator 100 of the fifth embodiment differs from that of the first embodiment in the configuration of upper winding frame 20 and lower winding frame 30 as insulating portions for insulating core 1 and coil 7 .
  • the insulating portion for insulating the core 1 and the coil 7 is composed of the upper winding frame 20, the lower winding frame 30 and the film portion 230.
  • the upper winding frame 20 and the lower winding frame 30 have the first projecting portion 21 of the upper winding frame 2 and the second projecting portion 31 of the lower winding frame 3 in the first embodiment.
  • the configuration does not include portions corresponding to the one leg portion 22 and the second leg portion 32 .
  • the first projecting portion 21 has claw portions 211, 212, and 213 for fixing a film portion 230, which will be described later.
  • the second projecting portion 31 has claw portions 311 , 312 , and 313 for fixing the film portion 230 .
  • the upper winding frame 20 and the lower winding frame 30 are provided with convex portions 215 and 315 .
  • the core 1 has second recesses 115 formed in the axial direction Y in the teeth 12 .
  • the second recessed portion 115 may pass through the inside of the core 1 in the axial direction Y, or may be processed from above and below to a required depth without penetrating.
  • the upper winding frame 20 and the lower winding frame 30 are installed by fitting the projections 215 and 315 and the second recess 115 of the core 1 .
  • the film part 230 is formed of a thin insulating film material, and for example, a film material having a thickness of 0.125 mm can be used. Then, the film material is formed by folding into a shape as shown in FIG. 27 . With this crease, the film portion 230 forms a first side surface 231 that covers the inner peripheral surface 112 that is the side surface in the axial direction Y on the inner side X2 of the yoke portion 11 in the radial direction X, and the side surface in the axial direction Y of the teeth 12.
  • the film portion 230 is connected to the first projecting portion 21 and the second projecting portion 31 in the axial direction Y when attached to the core 1 .
  • the film portion 230 is formed continuously corresponding to all of the core portions 61 to 69 of the core 1 .
  • the third side surface 233 is cut in the axial direction Y near the center of the circular arc shape after the coil 7 is wound, and the cut third side surface 233 is folded into the slot 14 to form the coil 7. It is arranged so as to cover the outermost layer.
  • connection in the axial direction Y of the film portion 230 to the first projecting portion 21 of the upper winding frame 20 and the second projecting portion 31 of the lower winding frame 30 is performed at both ends of the film portion 230 in the axial direction Y. It is formed longer than the length of the axial direction Y of 1, and respond
  • Other configurations and the manufacturing method of stator 100 of rotating electrical machine 1000 are the same as those of the first embodiment.
  • the insulating portion of the stator of the rotating electric machine according to the fifth embodiment configured as described above includes a first projecting portion 21 and a second projecting portion 31 projecting from the other side of the core 1 in the axial direction, and teeth 12. Since the film portion 230 covering the axial side surface and the radially inner axial side surface of the yoke portion 11 is provided, the insulating portion can be configured with the thin film portion 230, and the configuration of the insulating portion can be simplified. Cost can be reduced. In addition, the same effects as those of the above-described first embodiment can be obtained.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

La présente invention concerne un stator de machine électrique tournante (100) qui comprend des bobines (7) enroulées autour d'un noyau (1) avec une partie isolante interposée entre elles. La partie isolante comprend une première partie de projection (21) faisant saillie dans l'une des directions axiales du noyau et une seconde partie de projection (31) faisant saillie dans l'autre des directions axiales du noyau. La première partie de projection et la seconde partie de projection sont chacune pourvues d'une partie de rainure (9) dans laquelle est logé un fil de liaison (8) traversant les bobines, le fil de liaison étant disposé dans la partie de rainure par la modification des positions de la première partie de projection et de la seconde partie de projection. Cette configuration permet d'obtenir un stator dans lequel les interférences entre les fils de liaison des bobines sont évitées lors de l'enroulement d'un fil conducteur pendant la formation de la bobine et un élément de connexion de fil peut être réduit.
PCT/JP2023/001839 2022-02-02 2023-01-23 Stator de machine électrique tournante, machine électrique tournante, procédé de fabrication de stator de machine électrique tournante et procédé de fabrication de machine électrique tournante WO2023149252A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09191588A (ja) * 1995-11-02 1997-07-22 Mitsubishi Electric Corp 回転電機及びその製造方法
JP2004208446A (ja) * 2002-12-26 2004-07-22 Mitsubishi Electric Corp 電動機、冷凍・空調装置、電動機の製造方法、電動機の金型装置
JP2016067177A (ja) * 2014-09-26 2016-04-28 三菱電機株式会社 回転電機の固定子
WO2020174817A1 (fr) * 2019-02-27 2020-09-03 三菱電機株式会社 Stator de machine dynamo-électrique, machine dynamo-électrique, procédé de fabrication de stator de machine dynamo-électrique, et procédé de fabrication de machine dynamo-électrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09191588A (ja) * 1995-11-02 1997-07-22 Mitsubishi Electric Corp 回転電機及びその製造方法
JP2004208446A (ja) * 2002-12-26 2004-07-22 Mitsubishi Electric Corp 電動機、冷凍・空調装置、電動機の製造方法、電動機の金型装置
JP2016067177A (ja) * 2014-09-26 2016-04-28 三菱電機株式会社 回転電機の固定子
WO2020174817A1 (fr) * 2019-02-27 2020-09-03 三菱電機株式会社 Stator de machine dynamo-électrique, machine dynamo-électrique, procédé de fabrication de stator de machine dynamo-électrique, et procédé de fabrication de machine dynamo-électrique

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