WO2010086997A1 - Stator et moteur - Google Patents

Stator et moteur Download PDF

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Publication number
WO2010086997A1
WO2010086997A1 PCT/JP2009/051591 JP2009051591W WO2010086997A1 WO 2010086997 A1 WO2010086997 A1 WO 2010086997A1 JP 2009051591 W JP2009051591 W JP 2009051591W WO 2010086997 A1 WO2010086997 A1 WO 2010086997A1
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WO
WIPO (PCT)
Prior art keywords
teeth
insulator
stator
tooth
yoke
Prior art date
Application number
PCT/JP2009/051591
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English (en)
Japanese (ja)
Inventor
竹内誉人
Original Assignee
トヨタ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to PCT/JP2009/051591 priority Critical patent/WO2010086997A1/fr
Publication of WO2010086997A1 publication Critical patent/WO2010086997A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/325—Windings characterised by the shape, form or construction of the insulation for windings on salient poles, such as claw-shaped poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation

Definitions

  • the present invention relates to a stator including an insulator formed integrally around at least a tooth, and a motor including the stator.
  • the stator core constituting the motor is generally composed of the following two forms. One of them is formed from a steel plate laminate in which steel plates each having an annular yoke, a plurality of teeth projecting radially inward from the yoke, and a slot formed between adjacent teeth are laminated. Is. The other is to form a stator core from a powder magnetic core obtained by pressure-molding magnetic powder, a high-density powder magnetic core (HDMC), or the like.
  • HDMC high-density powder magnetic core
  • stator core for example, a coil in which an enamel insulating film is formed around a copper conductive wire is wound around a tooth while being inserted into a slot defined between the teeth.
  • a concentrated winding method is a form in which a conductive wire is wound for each tooth
  • the distributed winding method is a form in which a conductive wire is wound across a plurality of teeth.
  • Distributed winding coils are generally applied. In either concentrated winding or distributed winding, slot insulating paper is interposed between them from the viewpoint of ensuring insulation between the slot surface of the stator core and the coil.
  • a split stator core in which an insulator is formed by this integral molding is disclosed in Patent Document 1, and in this split stator core, a guide groove for guiding a coil is provided on the teeth base end side of the yoke.
  • the integrally molded insulator described above is preferably as thin as possible on the premise of ensuring insulation, but for example, in order to improve heat dissipation, If an insulator is to be injection-molded, filling failure (resin fluidity failure) at the time of injection molding is likely to be difficult to mold. Regarding the poor fluidity, the problem of poor fluidity becomes more conspicuous when the resin contains an inorganic filler in order to improve heat dissipation. Furthermore, not only the integrally molded insulator but also the insulator that is molded separately and fitted to the teeth in a later process, the linear expansion coefficient of the resin insulator is naturally higher than that of the stator core.
  • the linear expansion coefficient of iron is about 12 ⁇ 10 ⁇ 6 / ° C.
  • the linear expansion coefficient of polystyrene (PS) or polyphenylene ether (PPE) is about 60 ⁇ 10 ⁇ 6 / ° C., polypropylene.
  • the linear expansion coefficient of (PP) is about 100 ⁇ 10 ⁇ 6 / ° C., which is considerably higher than that of iron (including magnetic steel sheets). Therefore, the amount of deformation during temperature change ( (Expansion amount, contraction amount) are greatly different.
  • FIG. 7 shows an insulator b integrally formed around a tooth a1 of a split core a (consisting of a steel plate laminate of electromagnetic steel plates a ′) forming a split stator core and a surface facing the slot s of the yoke a2. Shows things.
  • the insulator b around the teeth is formed of a side surface b1 facing the slot s and a top surface b2 not facing the slot s, and the corner portion G composed of the side surface b1 and the top surface b2 It is highly rigid compared with the part.
  • the present invention has been made in view of the above-mentioned problems, and an insulator excellent in heat resistance and as thin as possible on the premise of ensuring insulation, is integrally molded around the teeth while being excellent in crack resistance.
  • An object of the present invention is to provide a stator and a motor including the stator.
  • a stator according to the present invention is a stator comprising a substantially annular yoke in plan view, teeth projecting radially inward from the yoke, and slots defined between adjacent teeth.
  • An insulator formed integrally is provided at least around the side surface facing the slot of the tooth and the top surface not facing the slot, and the tooth is provided from the radial tip to the yoke.
  • the width of the teeth increases toward the root portion to be connected, and a groove extending in the height direction of the tooth is formed in the root portion of the tooth, and the protrusion of the insulator is formed in the groove. It is what.
  • the insulator is integrally formed by injection molding or the like around at least the teeth, and the width of the teeth increases from the radial tip to the root connected to the yoke.
  • a groove extending in the height direction of the tooth is formed in the root portion of the tooth, and the protrusion of the insulator is formed in the groove, so that the tooth is moved in the height direction.
  • this concave groove becomes a resin flow path at the time of injection molding, so that sufficient resin flow is compensated by this concave groove.
  • the stator is capable of forming a thin-layer insulator around the teeth.
  • the “root portion” is a portion connected to the yoke in the tooth, and the portion where the groove is formed is the root portion and either one or both sides of the tooth.
  • a groove is formed in the root portion, and it is not excluded that a groove is formed in a tooth portion other than this.
  • a concave groove bulging inside the teeth is provided, for example, on both sides of the root. Even so, it has been demonstrated that the torque reduction rate of the motor including the stator having the teeth is extremely small. In other words, heat dissipation performance can be improved by integrally forming a thin insulator while minimizing the reduction rate of torque that can be reduced by providing grooves in the teeth as much as possible.
  • the crack resistance of the insulator can be improved by the protrusion of the insulator that is filled and hardened inside.
  • the stator described above has a split core composed of an arc-shaped yoke in plan view and teeth projecting radially inward from the yoke in the circumferential direction.
  • the outer periphery includes both divided stators that are fastened by, for example, a cylindrical body.
  • those formed from a steel sheet laminate formed by laminating electromagnetic steel sheets those formed from a powder magnetic core, a high-density powder magnetic core (HDMC), etc. formed by pressure-forming magnetic powder are included.
  • the magnetic powder iron, iron-silicon alloy, iron-nitrogen alloy, iron-nickel alloy, iron-carbon alloy, iron-boron alloy, iron-cobalt alloy, iron-phosphorus
  • soft magnetic metal powders such as iron alloys, iron-nickel-cobalt alloys and iron-aluminum-silicon alloys, or soft magnetic metal oxide powders coated with a resin binder such as a silicone resin.
  • the groove formed in the root portion of the stator core is formed with a notch (concave groove) having a desired shape and size in the root portion of each steel plate when the stator core is made of a steel plate laminate.
  • a concave groove having a desired planar shape and planar dimension can be formed in the height direction of the teeth.
  • the base of the teeth is automatically formed when the mold is opened by pressing and forming the grooves on the cavity side of the mold.
  • a groove having a desired shape and size can be formed by, for example, a method of cutting after pressure molding.
  • the above-mentioned concave groove is formed in the root portion of the tooth, and the insulator is provided with a protrusion (rib) formed in the concave groove, whereby the molded insulator has the protrusion extending in the height direction.
  • the high-rigidity part which consists of the corner part (corner part formed by the slot side side and top face of teeth) of the both ends, and the ridge which connects these corner parts, The crack resistance of the inner side is greatly improved.
  • an insulator having a conventional structure constitutes the stator of the present invention, whereas when it is thermally expanded or contracted, high temperature stress sites are likely to concentrate only at the corners at both ends, and cracks are likely to occur. Insulators also generate relatively large temperature stresses in high-rigidity parts reinforced with ridges, and this also has the effect of dispersing and mitigating temperature stresses that tend to concentrate at the corners at both ends. From this viewpoint, the crack resistance is improved.
  • the insulator to be injection-molded is preferably molded not only on the teeth but also on the surface facing the slot of the yoke.
  • the surface around the teeth and the surface facing the slot of the yoke are preferably formed.
  • the insulator is molded simultaneously and integrally.
  • the above-mentioned concave groove is formed outside the tooth with respect to the projected portion when the radial tip portion of the tooth is projected onto the root portion. If the concave groove is formed to the inside of the teeth from the projected portion, the flow of magnetic flux from the teeth to the yoke is obstructed, and the torque performance of the motor equipped with this stator is greatly reduced. is there. Further, from the verification by the present inventors, it is desirable that the concave groove is formed only in the teeth, and therefore the concave groove is not formed from the root portion of the tooth to the yoke.
  • a concave groove extending in the radial direction is further formed on the side surface facing the slot of the tooth, and a separate ridge of the insulator is also formed in the concave groove.
  • Form may be sufficient. This is because the insulator has a ridge extending in the height direction of the teeth and a ridge extending perpendicularly to the teeth in the radial direction, and the high rigidity portion is further increased. The rigidity is further increased.
  • the coil of the present invention is formed by concentrated winding or distributed winding.
  • a rectangular wire including a rectangular conductor having a substantially rectangular cross-sectional view and an insulating film formed on the outer periphery of the rectangular conductor is wound around the insulator. Is preferred.
  • the insulator is integrally formed at least around the teeth by injection molding or the like, so that the air gap that may be generated between the core and the insulator is in close contact with each other, and the coil to the core is removed. Heat dissipation performance can be improved.
  • the insulator is reinforced by a highly rigid protrusion that extends in the height direction. Generation of cracks that can occur can be effectively avoided.
  • a groove extending in the height direction is formed at the root of the teeth, this promotes the resin flow and allows the resin to be spread all around the teeth.
  • Insulating thin layers of insulators can be integrally formed, so that an insulator with extremely high heat dissipation performance can be formed.
  • the flow is compensated by the resin flow promoting effect by the concave groove even when the inorganic filler described above is contained in the resin to be used, the improvement of the heat radiation performance due to the inclusion of the inorganic filler is also expected. Is possible.
  • a motor comprising the above-described stator of the present invention and a rotor rotatably disposed in the stator is such that the insulator formed around the teeth is as thin as possible, and the insulator and the core are in close contact with each other.
  • the insulator does not crack or is hardly cracked, and the motor is as small as possible, excellent in heat dissipation, and excellent in crack resistance (or durability). Therefore, the motor including the stator according to the present invention has been recently produced, and a hybrid vehicle and an electric vehicle that require further compactness, high durability, and high heat dissipation especially for a drive motor mounted on a vehicle. It is suitable for.
  • stator of the present invention As can be understood from the above description, according to the stator of the present invention and the motor including the stator, the stator as small as possible, excellent in heat dissipation, and excellent in crack resistance (or durability) A motor having this can be obtained.
  • FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2.
  • (A) is the schematic diagram of the ditch
  • (b) is the schematic diagram which showed the motor which consists of the stator by which the division
  • Electromagnetic steel plate 10 ... Divided core, 11 ... Teeth, 11 '... Side surface which opposes slot of teeth, 11 "... Top surface which does not oppose slot of teeth, 11a, 11b, 11c ... Groove, 20 ... Resin integral Molded insulators, 20a, 20b, 20c ... ridges, 21 ... side faces facing the slots of the insulators, 22 ... top faces not facing the slots of the insulators, 23 ... side faces facing the slots of the insulators, 100 ... stators, 200 ... rotors , 300 ... Permanent magnet, X1 ... Radial tip, X2 ... Root, G ... Corner
  • the illustrated example shows a split core, it is needless to say that a general stator integrally formed in an annular shape may be used.
  • the coil formed around the teeth is not shown, but this coil may be either a flat wire or a general cross-section coil. However, it is preferable to apply a rectangular wire from the viewpoint of the space factor.
  • the illustrated example shows a concave groove extending in the height direction of the tooth and a protrusion of the insulator formed in the concave groove. In addition to the concave groove and the protrusion, the groove faces the tooth slot.
  • a concave groove extending in the radial direction may be further formed on the side surface, and a protrusion of a separate insulator may be formed in the concave groove.
  • FIG. 1 shows a split core 10 constituting a split stator of an IPM motor.
  • the split core 10 includes a yoke 12 having a substantially arc shape in plan view and a tooth 11 protruding radially inward from the yoke 12 and is formed by laminating electromagnetic steel plates 1.
  • the electromagnetic steel plates may be formed from a dust core, a high-density dust core (HDMC), or the like.
  • the teeth 11 of the split core 10 have a width that increases from the radial tip end portion X1 toward the root portion X2 connected to the yoke 12, and project on the both sides of the root portion X2 to the inside of the teeth 11. Grooves 11a and 11a extending in the height direction of the teeth 11 are formed.
  • the concave groove 11a is formed by forming a notch (concave groove) having a desired shape and size in the root portion X2 of each electromagnetic steel sheet 1 to thereby form the concave groove 11a having a desired planar shape and planar dimension. Can be formed in the height direction of the teeth.
  • FIG. 2 shows the divided core 10 shown in FIG. 1 around the teeth 11 (the side surface 11 ′ facing the tooth slot and the top surface 11 ′′ not facing the tooth slot) and the side surface 12 ′ of the yoke 12 on the slot side.
  • the state in which the resin integrated molded insulator 20 is formed is shown.
  • the insulator 20 accommodates the split core 10 in a mold (not shown) and injection-molds an appropriate thermosetting resin or thermoplastic resin into the mold, thereby forming the periphery of the teeth 11 and the side surface 12 ′ of the yoke 12.
  • the side surface 21 facing the slot of the insulator 20 on the outer periphery of the side surface 11 ′ facing the slot forming the tooth 11 is formed on the top surface 11 not facing the slot of the tooth 11.
  • the top surface 22 that does not oppose the slot of the insulator 20 is formed on the outer periphery of the insulator 20, and the side surface 23 that opposes the slot of the insulator 20 is formed on the side surface 12 ′ that opposes the slot of the yoke 12.
  • the injection resin is also filled into the concave groove 11a, and is cured to form a protrusion 20a having a shape and dimensions (cross-sectional rigidity) corresponding to the concave groove 11a.
  • the concave groove 11a also serves as a resin flow path, and the resin filled in a molding die (not shown) flows in the height direction of the tooth 11 through the concave groove 11a. At a certain level, it can flow into the space between the cavity surface of the mold and the side surfaces of the teeth 11 and the yoke 12. Therefore, even when this space is narrow (and therefore the thickness of the insulator 20 is thin), the resin can be effectively distributed over the entire surface of the insulator 20, so that the thin-layer insulator 20 can be molded. Become.
  • the insulator 20 has a corner portion G and a ridge 20a that are higher in rigidity than other parts (side surface 21 and top surface 22). Compared with the insulator of the conventional structure which does not exist, the whole rigidity is remarkably high. As a result, the occurrence of cracks in the vicinity of the corner G as shown in FIG. It is to be noted that the presence of the high-rigid protrusions 20a alleviates the concentration of excessive temperature stress only in the vicinity of the corner portion G, so that the occurrence of the cracks is suppressed.
  • the split stator is formed by being assembled in the circumferential direction, and by further inserting the split core assembly unit into the nonmagnetic material cylinder and performing shrink fitting.
  • FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2, and is a diagram illustrating in more detail the site where the protrusion 20a is formed in a plan view.
  • the formation part of the protrusion 20a (or the concave groove 11a) is a region A outside the tooth 11 with respect to the projection part when the radial tip part X1 of the tooth 11 is projected onto the root part X2.
  • the following effects can be expected by providing the concave groove 11a while minimizing the reduction rate of the motor torque when the concave groove 11a is formed. That is, it is formed in the concave groove 11a, such as ensuring the effective fluidity of the resin for integral molding, ensuring the moldability of the thin-layer integrally molded insulator resulting from this, and improving the heat dissipation performance resulting from this. This is an effect that the crack resistance of the insulator 20 is improved (durability is improved) by the protrusion 20a.
  • FIG. 4 is a schematic diagram showing various embodiments of the groove and the protrusion. Specifically, FIG. 4a shows a schematic diagram of the groove and protrusion shown in FIG. 2, and FIGS. 4b and 4c are schematic diagrams showing other embodiments.
  • FIG. 4a shows a ridge 20a corresponding to the shape and size of the groove 11a protruding into the tooth 11 in a triangular shape.
  • the groove 11b has a rectangular shape in plan view
  • the groove 11b having a rectangular shape in plan view is provided at the root portion X2, and a rectangular shape in plan view is separately provided at a midway position in the radial direction of the tooth 11.
  • the protrusion 20c is provided.
  • the shape of the grooves and ridges to be formed, and their radixes are not particularly limited, and are formed at least in the outer region A, and at least the root groove X2 of the teeth 11 and the grooves What has a protrusion is sufficient.
  • FIG. 5 is a perspective view showing an IPM motor including a stator in which the divided cores shown in FIG. 2 are assembled in the circumferential direction and a rotor.
  • a rotor shaft 210 (drive shaft slot) is opened at the center position, and a magnet slot extending in a direction along the rotor shaft 210 in a predetermined number is opened in the peripheral portion.
  • the permanent magnet 300 is inserted into the magnet slot and, for example, a fixing resin is filled between the slot and the permanent magnet 300 to compensate for the fixing of the permanent magnet 300 in the slot.
  • a unit model of a stator and rotor (V-shaped permanent magnet embedded type) as shown in FIG. 6 is created in a computer, current value: 114 (A), advance angle: 38 (degrees), and rotation speed: 1000 (rpm), permanent magnet residual magnetic flux density (Br): 1.17 (T), recoil relative magnetic permeability: 1.05 ( ⁇ r), a laminate of electromagnetic steel sheets having a thickness of 0.3 mm for both the stator core and the rotor core The analysis was performed as formed from
  • the analysis model of Comparative Example 1 has a tooth (there is no groove at the base portion) whose width increases from the radial tip portion toward the root portion connected to the yoke
  • the analysis model of Comparative Example 2 Has a tooth whose width is constant from the radial tip to the root connected to the yoke (no groove in the root), and the analysis model of Comparative Example 3 is connected from the radial tip to the yoke.
  • Teeth whose width increases toward the root part, in which a relatively large concave groove is formed from the root part of the tooth to the yoke the model of the embodiment is a concave as shown in FIG. It has a groove at the base of the tooth.
  • Table 1 The results of the magnetic field analysis are shown in FIG. 6 and Table 1 below. In Table 1, the torque reduction rates of Comparative Examples 2 to 3 and Examples are compared to the torque of Comparative Example 1 as a reference. Show.
  • the comparative example 2 in which the width of the teeth is constant reduces the torque by about 5%, changes the tooth width, and extends from the root portion to the yoke.
  • Comparative Example 3 in which a large concave groove was provided it was specified that the torque was reduced by about 11%. Therefore, first, it is preferable that the width of the teeth is increased from the radial front end portion toward the root portion connected to the yoke, and the groove formed in the root portion of the teeth does not extend to the yoke. It has proven to be preferable.
  • the example is only 0.4% of torque reduction, and even when the groove is provided in the tooth, the groove forming portion is the root in the tooth. It is demonstrated that the motor torque can be reduced to a very small value when the size of the groove is such that the size of the groove does not hinder the flow of magnetic flux (for example, in the outer region A in FIG. 3). It was done.
  • the resin flow can be promoted by using the grooves while minimizing torque reduction.
  • a thin-layer insulator can be formed, and high heat dissipation from the coil to the stator core via the insulator can be compensated.
  • the present inventors further prepared a stator 100 composed of the split core 10 with an insulator shown in FIG. 2 as an example, and a conventional structure in which the concave grooves 11a and the protrusions 20a were eliminated from the split core 10 shown in FIG.
  • a stator composed of a split core of the above is used as a comparative example.
  • Temperature condition in a simulated cold region ⁇ 40 ° C., for example, a temperature condition assumed when a motor is driven and a maximum current is applied (maximum heat generation): 160 ° C. Until the occurrence of cracks (or growth of cracks) in which insulation could not be ensured was measured.
  • test specimens were easily prepared, and a total of five thermal tests were performed on each specimen to obtain an average.
  • the measurement is 100 times, 100 times, 100 times, 300 times, and 300 times in order, and the average number of repetitions until the occurrence of a crack in which insulation cannot be secured is 180 times. It was demonstrated that the number of repetitions can be improved by 60% or more as compared with the comparative example.
  • a groove is provided in the root of the tooth, and the protrusion of the insulator integrally formed in the groove is formed to reinforce the entire insulator, thereby providing crack resistance. It has been found that this is significantly improved as compared with an integrally molded insulator having a conventional structure.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

La présente invention porte sur un stator dans lequel un isolant supérieur en termes de résistance à la fissuration est formé d'un seul tenant autour de dents, tout en étant supérieur en termes de propriété de rayonnement et mince autant que possible en prenant comme hypothèse une garantie de propriété d'isolation. L'invention porte également sur un moteur équipé du stator. Le noyau de division du stator (10)) est formé d'une culasse (12) dont la vue en plan est une forme presque circulaire, de dents (11) en saillie vers l'intérieur dans une direction radiale à partir de la culasse (12) et d'une fente formée entre les dents adjacentes (11) et (11). L'isolant formé d'un seul tenant (20) est agencé à une périphérie d'un côté (11') face à la fente des dents (11) et une face supérieure (11'') qui n'est pas en face de la fente. Une rainure concave (11a) s'étendant dans une direction de hauteur des dents (11) est formée dans une partie racine (X2) des dents (11). Une barre en saillie (20a) de l'isolant (20) est formée à l'intérieur de la rainure concave (11a).
PCT/JP2009/051591 2009-01-30 2009-01-30 Stator et moteur WO2010086997A1 (fr)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010263675A (ja) * 2009-04-30 2010-11-18 Mitsubishi Electric Corp 電機子
WO2012143089A3 (fr) * 2011-04-18 2013-10-03 Sew-Eurodrive Gmbh & Co. Kg Segment de stator pour un stator de moteur électrique conçu de manière segmentée, stator constitué de segments de stator analogues et procédé pour produire un stator à partir de segments de stator
CN103730966A (zh) * 2012-10-15 2014-04-16 普罗蒂恩电子有限公司 用于电动机或发电机的齿
EP2882077A1 (fr) * 2013-12-04 2015-06-10 HILTI Aktiengesellschaft Bloc stator avec barrière d'écoulement
CN109104003A (zh) * 2018-09-18 2018-12-28 珠海格力节能环保制冷技术研究中心有限公司 一种定子铁芯、绝缘骨架、定子以及绝缘骨架的注塑方法
EP3163717A4 (fr) * 2014-06-24 2019-01-16 Kubota Corporation Stator de moteur électrique et structure de refroidissement pour machine dynamo-électrique
EP3989399A1 (fr) * 2020-10-23 2022-04-27 Siemens Gamesa Renewable Energy A/S Segment de stator ou de rotor comprenant des bobines sur des dents ancrant le bord extérieur de la bobine avec un adhésif

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Publication number Priority date Publication date Assignee Title
JPH10126996A (ja) * 1996-10-18 1998-05-15 Fujitsu General Ltd 固定子
JPH10234149A (ja) * 1997-02-20 1998-09-02 Fujitsu General Ltd 電動機
JP2001045691A (ja) * 1999-08-02 2001-02-16 Toyoda Mach Works Ltd モータの絶縁構造
JP2002272046A (ja) * 2001-03-15 2002-09-20 Mitsubishi Electric Corp 回転電機の固定子及びその製造方法
WO2003028188A1 (fr) * 2001-09-21 2003-04-03 Aisin Aw Co., Ltd. Noyau dote d'un element d'isolation et procede de production dudit noyau
JP2004248471A (ja) * 2003-02-17 2004-09-02 Yaskawa Electric Corp 固定子ピースおよびこれを用いたモータ固定子
JP2005323477A (ja) * 2004-05-11 2005-11-17 Asmo Co Ltd モータ
JP2007274809A (ja) * 2006-03-31 2007-10-18 Aisin Aw Co Ltd ステータ及び回転電機

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10126996A (ja) * 1996-10-18 1998-05-15 Fujitsu General Ltd 固定子
JPH10234149A (ja) * 1997-02-20 1998-09-02 Fujitsu General Ltd 電動機
JP2001045691A (ja) * 1999-08-02 2001-02-16 Toyoda Mach Works Ltd モータの絶縁構造
JP2002272046A (ja) * 2001-03-15 2002-09-20 Mitsubishi Electric Corp 回転電機の固定子及びその製造方法
WO2003028188A1 (fr) * 2001-09-21 2003-04-03 Aisin Aw Co., Ltd. Noyau dote d'un element d'isolation et procede de production dudit noyau
JP2004248471A (ja) * 2003-02-17 2004-09-02 Yaskawa Electric Corp 固定子ピースおよびこれを用いたモータ固定子
JP2005323477A (ja) * 2004-05-11 2005-11-17 Asmo Co Ltd モータ
JP2007274809A (ja) * 2006-03-31 2007-10-18 Aisin Aw Co Ltd ステータ及び回転電機

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EP3163717A4 (fr) * 2014-06-24 2019-01-16 Kubota Corporation Stator de moteur électrique et structure de refroidissement pour machine dynamo-électrique
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