WO2015001601A1 - Machine électrique tournante et son procédé de fabrication - Google Patents

Machine électrique tournante et son procédé de fabrication Download PDF

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Publication number
WO2015001601A1
WO2015001601A1 PCT/JP2013/068032 JP2013068032W WO2015001601A1 WO 2015001601 A1 WO2015001601 A1 WO 2015001601A1 JP 2013068032 W JP2013068032 W JP 2013068032W WO 2015001601 A1 WO2015001601 A1 WO 2015001601A1
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WO
WIPO (PCT)
Prior art keywords
diameter side
rotor
slot
inner diameter
rotor slot
Prior art date
Application number
PCT/JP2013/068032
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English (en)
Japanese (ja)
Inventor
明仁 中原
菊地　聡
和雄 西濱
秀俊 江夏
三好　努
Original Assignee
株式会社日立産機システム
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 株式会社日立産機システム filed Critical 株式会社日立産機システム
Priority to JP2015524921A priority Critical patent/JP6129966B2/ja
Priority to CN201380077356.9A priority patent/CN105284038B/zh
Priority to PCT/JP2013/068032 priority patent/WO2015001601A1/fr
Publication of WO2015001601A1 publication Critical patent/WO2015001601A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
    • H02K17/18—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having double-cage or multiple-cage rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots

Definitions

  • the present invention relates to a rotating electrical machine such as an induction motor having a cage rotor and a method for manufacturing the same.
  • a squirrel-cage rotor of a rotating electrical machine is formed of thin magnetic steel plates, and a plurality of rotor cores stacked in a thickness direction and a plurality of rotor slots formed in the circumferential direction of each rotor core are stacked. It is composed of a rotor conductor provided in series in each rotor slot of the rotor core.
  • a method of forming the rotor conductor there are a method of inserting a copper bar into the rotor slot and a method of die casting a molten metal such as aluminum or an aluminum alloy in the rotor slot.
  • harmonic flux caused by the ripple current at the time of driving the stator slot or inverter is linked to the cage rotor so that the rotor It has been pointed out that eddy current loss occurs in the conductor, leading to a reduction in efficiency. Since the harmonic magnetic flux passes through the relatively outer periphery of the squirrel-cage rotor, it is desirable that the dimension from the outer peripheral side end of the rotor slot to the outer periphery of the core be as small as possible in order to suppress the reduction in efficiency. .
  • Japanese Patent Laid-Open No. 2002-315282 discloses a configuration in which an insulator is loaded on the outer peripheral side of the rotor slot to reduce the loss by reducing the amount of linkage between the rotor conductor and the harmonic magnetic flux.
  • JP-A-8-140319 two slots, an inner peripheral side slot and an outer peripheral side slot, are provided in the radial direction of the rotor core, the conductor is filled only in the inner peripheral side slot, and an eddy current generation site is defined.
  • a configuration for reducing the loss by deleting is disclosed.
  • JP 2002-315282 A Japanese Patent Laid-Open No. 8-140319
  • the present invention has been made in order to solve such a problem of conventional typography, and the object of the present invention is to provide a rotating electrical machine that reduces loss due to harmonic magnetic flux and improves efficiency. There is. It is another object of the present invention to provide a rotating electrical machine that prevents leakage of main magnetic flux and does not impair torque, and improves efficiency during operation. Furthermore, it is providing the method of manufacturing such a rotary electric machine efficiently.
  • the present invention relates to a rotating electrical machine, and includes a stator and a rotor rotatably disposed in the stator, and the rotor is a laminate of a plurality of thin magnetic steel plates.
  • a rotor core consisting of: an inner diameter side rotor slot and an outer diameter side rotor slot of a sealed structure formed in the rotor core; an inner diameter side rotor conductor formed in the inner diameter side rotor slot; and It has a double cage structure with an outer diameter side rotor conductor formed in an outer diameter side rotor slot, and the outer diameter side rotor slot protrudes in the inner diameter direction on the left and right shoulders on the outer diameter side. It has a characteristic arcuate curved portion.
  • a step of forming a predetermined number of thin magnetic steel plates having an inner diameter side rotor slot and an outer diameter side rotor slot, and an inner diameter side rotor slot and an outer diameter side of each thin magnetic steel plate A step of superposing rotor slots and laminating a predetermined number of thin magnetic steel plates to form a rotor core, and among the inner diameter side rotor slot and the outer diameter side rotor slot formed in the rotor core And a step of inserting a copper bar into at least the inner diameter side rotor slot and a step of filling a gap between the inner diameter side rotor slot and the copper bar with aluminum or an aluminum alloy by die casting.
  • the rotating electrical machine of the present invention has arcuate curved portions convex in the inner diameter direction on the left and right shoulders on the outer diameter side of the outer diameter side rotor slot, the loss of the rotating electric machine is reduced and the efficiency is improved. Can do.
  • the manufacturing method of the rotating electrical machine of the present invention includes a step of inserting a copper bar into at least the inner diameter side rotor slot of the inner diameter side rotor slot and the outer diameter side rotor slot formed in the rotor core; Since the step of filling aluminum or aluminum alloy with die casting in the gap between the inner diameter side rotor slot and the copper bar is included, a rotor conductor excellent in conductivity can be easily manufactured.
  • FIG. 1 is an axial cross-sectional view of a double squirrel-cage rotor according to Embodiment 1.
  • FIG. It is a principal part enlarged view of FIG.
  • FIG. It is explanatory drawing of the slot part formed in the double cage rotor which concerns on Example 1.
  • FIG. It is explanatory drawing of the slot part formed in the double cage rotor based on Example 2.
  • FIG. It is explanatory drawing of the slot part formed in the double cage rotor which concerns on the modification 1.
  • FIG. 6 is a side view and an enlarged view of a double squirrel-cage rotor according to Embodiment 3.
  • FIG. 10 is a side view and an enlarged view showing another example of a double squirrel-cage rotor according to Embodiment 3. It is the side view and enlarged view which show the further another example of the double cage rotor which concerns on Example 3.
  • FIG. 6 is an enlarged view of a first thin magnetic steel plate according to Example 3.
  • FIG. It is an enlarged view of the 2nd thin plate magnetic steel plate concerning Example 3.
  • FIG. 6 is an enlarged view of a thin magnetic steel plate according to Example 4.
  • FIG. 6 is an enlarged view of a thin magnetic steel plate according to Example 5.
  • FIG. 6 is an enlarged view of a thin magnetic steel plate according to Example 5.
  • the rotating electrical machine 100 includes a cage rotor 1 and a stator 65 arranged concentrically.
  • the cage rotor 1 includes a shaft (output shaft) 9, a rotor core 2 fixed to the shaft 9, an inner diameter side rotor conductor 3 and an outer diameter side rotor conductor 5 provided on the rotor core 2, and A short-circuit ring 70 is provided to connect both ends of the inner diameter side rotor conductor 3 and the outer diameter side rotor conductor 5. Therefore, the cage rotor 1 of this example has a double cage structure.
  • the stator 65 includes a stator core 60, a stator slot 61 formed in the stator core 60, and a stator winding 62 wound around the stator slot 61.
  • the rotor core 2 is formed of a thin magnetic steel plate, and the entire shape is formed into a cylindrical shape by laminating a predetermined number of sheets in the thickness direction.
  • the predetermined number of rotor cores 2 are integrated by inserting a shaft 9 into the center hole thereof.
  • the rotor core 2 is formed with an inner diameter side rotor slot 4 and an outer diameter side rotor slot 6 at regular intervals on a circumference centered on the axis of the shaft 9.
  • Both the inner diameter side rotor slot 4 and the outer diameter side rotor slot 6 are formed in a sealed shape.
  • an inner diameter side bridge 7 having a predetermined dimension is formed, and the outer diameter side rotor slot 6 and the rotor core 2 are separated from each other.
  • an outer diameter side bridge 8 having a predetermined dimension is formed.
  • the widths of the inner diameter side bridge 7 and the outer diameter side bridge 8 are set to values capable of press punching the inner diameter side rotor slot 4 and the outer diameter side rotor slot 6 with high efficiency and high accuracy.
  • the inner diameter side rotor conductor 3 and the outer diameter side rotor conductor 5 are formed by die-casting aluminum or an aluminum alloy.
  • the die casting method for the inner diameter side rotor conductor 3 and the outer diameter side rotor conductor 5 is a well-known matter and is not the gist of the present invention.
  • both ends of each inner diameter side rotor conductor 3 and each outer diameter side rotor conductor 5 are connected by the short-circuit ring 70 (see FIG. 1).
  • the planar shape of the inner diameter side rotor slot 4 (the sectional shape of the inner diameter side rotor conductor 3) is formed in a substantially sector shape with rounded corners as shown in FIGS.
  • the outer diameter side end of the inner diameter side rotor slot 4 is formed in a linear shape.
  • the planar shape of the outer diameter side rotor slot 6 (the cross sectional shape of the outer diameter side rotor conductor 5) is the inner diameter side rotor slot 4 and the outer diameter side rotor slot 6 as shown in FIGS. Centering on the radial line XX of the rotor core 2 passing through the center of the core, arc-shaped curved portions 10 convex in the inner diameter direction are formed in left and right shoulders on the left and right sides thereof in a symmetrical manner. ing.
  • the inner diameter side end of the outer diameter side rotor slot 6 is formed in a straight line shape facing the outer diameter end of the inner diameter side rotor slot 4, and the straight line portion and the curved portion 10 are connected by an arc. .
  • the circumferential width of the outer diameter side rotor slot 6 is approximately raised to s1, s2, and s3 along the curved portion 10 as it reaches the outer diameter side of the cage rotor 1 as shown in FIG. Decrease.
  • FIG. 5 shows that the harmonic flux 33 having the highest frequency among the harmonic fluxes 31, 32, 33 caused by the influence of the stator slot and the ripple current when driving the inverter is the outer diameter of the outer diameter side rotor conductor 5.
  • the harmonic magnetic flux 31 having the lowest frequency passing through the portion close to the end on the side passes through the portion close to the end on the inner diameter side of the outer diameter side rotor conductor 5, and the harmonic magnetic flux 32 having an intermediate frequency between them.
  • the main magnetic flux 30 having a frequency lower than that of the harmonic magnetic fluxes 31, 32, 33 returns to the stator core 60 through the inner diameter side further than the inner diameter side rotor conductor 3.
  • the arc-shaped curved portion 10 convex in the inner diameter direction is formed on the shoulder portion on the outer diameter side in a bilaterally symmetrical manner.
  • the length across the outer diameter side rotor slot 6 is shortened.
  • the reluctance of the portion across the outer diameter side rotor slot 6 is inversely proportional to the length of the magnetic flux across the outer diameter side rotor slot 6, so that the higher the frequency of the harmonic current flowing through the outer diameter side rotor conductor 5, the higher the magnetic resistance.
  • the magnetic flux generated by the harmonic current is easy to pass. That is, the inductance increases with increasing frequency.
  • the current flowing through the rotor conductors 3 and 5 is divided into a fundamental wave component that flows through the entire conductor at the slip frequency and becomes the output of the rotating electrical machine, and a harmonic component that flows through the conductor due to the harmonic magnetic flux and becomes a loss.
  • a fundamental wave component that flows through the entire conductor at the slip frequency and becomes the output of the rotating electrical machine
  • a harmonic component that flows through the conductor due to the harmonic magnetic flux and becomes a loss.
  • the slip frequency is generally lower than the stator current, the influence of the inductance due to the rotor leakage magnetic flux is small on the fundamental wave component, and the influence of the resistance is large on the magnitude of the flowing current.
  • the harmonic current is generated by the harmonic magnetic flux resulting from the stator slot and the inverter drive, the harmonic frequency is often a relatively high frequency of several kHz or more, and the influence of the inductance is increased.
  • the harmonic current causing the loss can be selectively reduced.
  • An efficient rotating electrical machine can be provided. Further, since the flux linkage at the time of starting does not decrease, a sufficient torque can be obtained at the time of starting.
  • the rotating electrical machine according to the second embodiment will be described with reference to FIG.
  • the rotating electrical machine according to the second embodiment is characterized in that the dimensions of each part of the outer diameter side rotor slot 6 formed in the rotor core 2 of the rotating electric machine 100 according to the first embodiment are optimized.
  • the end portion 11 on the inner diameter side of the curved portion 10 formed in the outer diameter side rotor slot 6 is closer to the inner diameter side than half of the radial length 2d of the outer diameter side rotor slot 6.
  • the circumferential width e from the end portion 11 on the inner diameter side of the curved portion 10 to the end portion 13 on the outer diameter side is set to be larger than half the radial direction length of the outer diameter side rotor slot 6,
  • the ratio at which the circumferential width of the rotor slot 6 is reduced in the outer diameter direction is increased. Thereby, a harmonic current can be reduced efficiently and the loss of a rotary electric machine can be reduced.
  • the radial height 2d of the outer diameter side rotor slot 6 shown in FIG. 6 is preferably determined according to the skin depth that can be calculated from the frequency of the main harmonic.
  • the harmonic component of the current flowing through the rotor conductor is mainly an integer multiple of the number of stator slots or an integer multiple of the inverter carrier frequency with respect to the frequency of the current passed through the stator winding. . Therefore, the electrical conductivity of the rotor conductor is ⁇ (S / m), the relative permeability is ⁇ r (H / m), the rotational speed of the rotating electrical machine is N, the number of stator slots is Ns, and the rotating electrical machine is driven.
  • the radial height 2d of the outer diameter side slot 6 is Skin depth of stator slot harmonic obtained by ⁇ (1 / ⁇ ⁇ N ⁇ Ns ⁇ ⁇ r ⁇ ⁇ ), or skin depth of inverter carrier harmonic obtained by ⁇ (1 / ⁇ ⁇ fc ⁇ ⁇ r ⁇ ⁇ ) Set a value smaller than the one that has a large effect.
  • the radial height 2d of the outer diameter rotor slot 6 is set to the skin depth of the harmonic having the greatest influence, the magnetic flux generated by the harmonic current of the same frequency passes through the inner diameter bridge 7, and thus the inductance is large. Impedance can be increased for harmonics that have a great influence, and harmonic current can be effectively reduced. Further, as described above, when the end portion on the inner diameter side of the curved portion 10 is set closer to the inner diameter side than the half of the radial length 2d of the outer diameter side rotor slot 6 with respect to an integral multiple of harmonics, Since the circumferential width of the outer diameter side slot 6 can be made particularly small within the range of the skin depth of the harmonic current or less, it is more effective in reducing the harmonic current and hence the loss.
  • the curved portion 10 of the outer diameter side rotor slot 6 formed in the rotor core 2 is bilaterally symmetric, and is externally disposed between the left and right curved portions 10.
  • the land portion (s3 in FIG. 5) convex toward the radial side is provided, the gist of the present invention is not limited to this.
  • the shape of the outer diameter side rotor slot 6 can be variously changed as shown in FIGS.
  • the land portion is not formed between the left and right curved portions 10.
  • the land portion 10c is formed between the left and right curved portions 10, and the shape of the land portion 10c is a convex curve toward the inner diameter side.
  • the rotating electrical machine according to the third embodiment does not constitute a rotor core 2 by laminating a predetermined number of thin magnetic steel plates having the same configuration, but by laminating two types of thin magnetic steel plates having different rotor slot shapes, The rotor core 2 is configured.
  • FIG. 10 shows an example in which two types of thin magnetic steel plates 41 and 42 having different rotor slot shapes are alternately laminated one by one
  • FIG. 11 shows two types of thin magnetic steel plates 41 and 42 having different rotor slot shapes. This is an example in which three sheets are alternately stacked.
  • FIG. 12 shows an example in which two thin magnetic steel plates 41 are alternately laminated on each of the two types of thin magnetic steel plates 41 and 42 having different rotor slot shapes.
  • the thin magnetic steel plate 41 is similar to the thin magnetic steel plate used in the rotating electrical machine 65 according to the first and second embodiments, and the inner circumferential rotor slot 4 and the An outer rotor slot 6 is formed.
  • the thin magnetic steel plate 42 does not have the inner diameter side bridge 7, and corresponds to the portion corresponding to the inner peripheral side rotor slot 4 and the outer peripheral side rotor slot 6.
  • An unbridged slot 12 is formed in a series of portions.
  • the inner bridge 7 formed on the rotor core 2 serves as a path for magnetic flux generated by the harmonic current flowing through the outer rotor conductor 5, so as shown in FIG.
  • the radial width b of the circumferential bridge 7 plays an important role in increasing the self-inductance of the cage rotor 1 with respect to the harmonic magnetic flux flowing through the outer diameter rotor conductor 5.
  • the radial width b of the inner circumferential bridge 7 is too large, the main magnetic flux that should be linked to the entire rotor conductor passes through the inner circumferential bridge 7. The amount of magnetic flux decreases and the output of the rotating electrical machine decreases.
  • the radial width b of the inner peripheral bridge 7 is a limit value corresponding to the thickness of the steel plate in order to avoid deformation and breakage during punching. Is decided. Since the thickness of the thin magnetic steel plate that is generally used is generally about 0.3 to 0.5 mm, the limit value of the radial width b at the time of punching is often approximately equal to or greater than the thickness of the thin magnetic steel plate. For this reason, the limit dimension at the time of punching may become larger than the dimension which can avoid the reduction
  • the thin magnetic steel plates 41 having the inner diameter side bridges 7 are alternately laminated by two thin magnetic steel plates 42 each having the bridgeless slot 12 formed, for example, even if a steel plate prepared by setting the radial width b of the inner peripheral bridge 7 to 1.0 mm due to punching restrictions is used, the radial width of each thin magnetic steel plate is 0.00 mm in the entire magnetic circuit of the rotor core 2. This is equivalent to a structure in which a 33 mm inner diameter side bridge 7 is formed, and leakage of main magnetic flux can be reduced.
  • the number of the two types of thin magnetic steel plates with different rotor slot shapes can be appropriately set depending on the radial width b to be configured and the manufacturing convenience.
  • the rotating electrical machine according to the fourth embodiment does not constitute the rotor core 2 by laminating two kinds of thin magnetic steel plates having different rotor slot shapes, but the rotor slot having the inner diameter side bridge 7 and the inner diameter.
  • a rotor core 2 is configured by laminating thin magnetic steel plates formed in a predetermined arrangement in the circumferential direction with a rotor slot 12 having no side bridge 7.
  • each rotor slot is formed in such an arrangement in a thin magnetic steel plate, an inner circumferential rotor slot 4 and an outer circumferential rotor slot arranged radially on the bridgeless slot 12 via the inner bridge 7.
  • the rotor core 2 similar to that shown in FIG. 10 can be configured by adjusting the circumferential positions of the thin magnetic steel plates arranged in contact with each other so as to overlap each other.
  • bridging is alternately and fixed pitch one by one.
  • the present invention is not limited thereto, and a plurality of these rotor slots can be alternately formed at a constant pitch.
  • the rotor core 2 can be configured by stacking two types of thin magnetic steel plates having different rotor slot arrangements.
  • the rotating electrical machine according to the fourth embodiment has the same effect as the rotating electrical machine according to the third embodiment.
  • the rotating electrical machine according to the fifth embodiment is characterized in that a copper bar 51 is inserted into the inner diameter side rotor slot 4.
  • the inner circumferential rotor slot 4 and the outer circumferential rotor slot 6 arranged in the radial direction via the inner diameter bridge 7 are arranged in the circumferential direction.
  • the rotor core 2 is formed at a constant pitch.
  • a copper bar 51 is inserted into the inner circumferential rotor slot 4, and the gap between the inner surface of the inner circumferential rotor slot 4 and the outer surface of the copper bar 51 is filled with aluminum or an aluminum alloy by die casting. ing.
  • the outer rotor slot 6 is filled with aluminum or aluminum alloy by die casting.
  • the other parts are the same as those of the rotating electrical machine according to the first embodiment, and thus the corresponding parts are denoted by the same reference numerals and the description thereof is omitted.
  • Copper has a higher electrical conductivity than aluminum and is therefore suitable as a rotor conductor.
  • copper has a higher melting point than aluminum, it is difficult to costly fill the rotor slot by die casting. . Therefore, when a copper bar is used as the rotor conductor, a method of inserting a solid copper bar into a rotor slot formed in the rotor core is generally used.
  • the rotor core 2 according to the embodiment is not limited. Thus, it is difficult to insert a solid copper bar into a rotor slot having a relatively complicated shape without a gap. Therefore, as shown in FIG.
  • the electrical conductivity of the rotor conductor can be increased, and the efficiency of the rotating electrical machine is further improved. can do. Further, after inserting the solid copper bar 51 into the inner rotor slot 4, aluminum or an aluminum alloy is filled in the gap between the inner surface of the inner rotor slot 4 and the outer surface of the copper bar 51 by die casting. Therefore, the inner peripheral rotor conductor 3 having good conductivity can be easily manufactured.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Induction Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

La présente invention concerne une machine électrique tournante à haut rendement qui réduit les pertes du fait d'un flux d'harmoniques. Une fente de rotor radiale intérieure (4) et une fente de rotor radiale extérieure (6) sont formées dans la direction radiale du noyau de rotor (2), un pont radial intérieur (17) se trouvant entre ces dernières. Une section courbée en forme d'arc (10), convexe dans la direction radiale vers l'intérieur, est formée sur la partie d'épaulement radiale vers l'extérieur de la fente de rotor radiale extérieure (6).
PCT/JP2013/068032 2013-07-01 2013-07-01 Machine électrique tournante et son procédé de fabrication WO2015001601A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2015524921A JP6129966B2 (ja) 2013-07-01 2013-07-01 回転電機及びその製造方法
CN201380077356.9A CN105284038B (zh) 2013-07-01 2013-07-01 旋转电机及其制造方法
PCT/JP2013/068032 WO2015001601A1 (fr) 2013-07-01 2013-07-01 Machine électrique tournante et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/068032 WO2015001601A1 (fr) 2013-07-01 2013-07-01 Machine électrique tournante et son procédé de fabrication

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WO2015001601A1 true WO2015001601A1 (fr) 2015-01-08

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CN (1) CN105284038B (fr)
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WO2017116089A1 (fr) * 2015-12-30 2017-07-06 주식회사 효성 Structure de rotor de moteur à induction
FR3069731A1 (fr) * 2017-07-31 2019-02-01 Moteurs Leroy-Somer Rotor a cage injectee
CN110581631A (zh) * 2019-09-29 2019-12-17 北京融信雅德科技有限公司 一种节能型三相异步电动机
WO2019244238A1 (fr) * 2018-06-19 2019-12-26 三菱電機株式会社 Rotor et machine électrique rotative
WO2019244240A1 (fr) * 2018-06-19 2019-12-26 三菱電機株式会社 Rotor et machine électrique tournante
WO2019244205A1 (fr) * 2018-06-18 2019-12-26 三菱電機株式会社 Rotor pour moteur à induction, moteur à induction, et procédé de fabrication du rotor
JP2020137151A (ja) * 2019-02-13 2020-08-31 東芝三菱電機産業システム株式会社 かご形誘導電動機およびかご形回転子
WO2022064820A1 (fr) * 2020-09-25 2022-03-31 株式会社日立産機システム Rotor

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CN106849575A (zh) * 2017-02-24 2017-06-13 康富科技股份有限公司 一种电动机转子
JP6914742B2 (ja) * 2017-06-16 2021-08-04 株式会社東芝 誘導電動機の回転子
CN109599970A (zh) * 2017-09-30 2019-04-09 上海海立电器有限公司 一种电机转子以及电机
CN108964387B (zh) * 2018-06-06 2019-10-11 东南大学 双层标准鼠笼导体转子高转矩密度永磁调速器
JP7057745B6 (ja) * 2018-12-13 2022-05-16 株式会社日立産機システム 回転電機のステータの製造方法及び回転電機
JP7344850B2 (ja) * 2020-07-10 2023-09-14 東芝三菱電機産業システム株式会社 回転子および回転電機
RU2747273C1 (ru) * 2020-12-10 2021-05-04 Сергей Сергеевич Лагутин Ротор асинхронной электрической машины

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CN201726295U (zh) * 2010-07-01 2011-01-26 大连三洋压缩机有限公司 一种涡旋压缩机使用的两极异步起动永磁同步电动机

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JP2009124879A (ja) * 2007-11-15 2009-06-04 Toshiba Corp 回転子
WO2009093345A1 (fr) * 2008-01-25 2009-07-30 Mitsubishi Electric Corporation Moteur à induction électrique et compresseur hermétique
JP2009278701A (ja) * 2008-05-12 2009-11-26 Toyota Industries Corp かご形誘導機及びかご形誘導機の回転子
WO2012053064A1 (fr) * 2010-10-19 2012-04-26 三菱電機株式会社 Rotor pour moteur électrique à induction, moteur électrique à induction, compresseur, ventilateur et conditionneur d'air

Cited By (15)

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Publication number Priority date Publication date Assignee Title
WO2017116089A1 (fr) * 2015-12-30 2017-07-06 주식회사 효성 Structure de rotor de moteur à induction
KR101801125B1 (ko) * 2015-12-30 2017-12-20 주식회사 효성 유도 전동기의 회전자 구조
FR3069731A1 (fr) * 2017-07-31 2019-02-01 Moteurs Leroy-Somer Rotor a cage injectee
WO2019025349A1 (fr) 2017-07-31 2019-02-07 Moteurs Leroy-Somer Rotor a cage injectee
JPWO2019244205A1 (ja) * 2018-06-18 2020-06-25 三菱電機株式会社 誘導電動機の回転子、誘導電動機及び回転子の製造方法
WO2019244205A1 (fr) * 2018-06-18 2019-12-26 三菱電機株式会社 Rotor pour moteur à induction, moteur à induction, et procédé de fabrication du rotor
WO2019244238A1 (fr) * 2018-06-19 2019-12-26 三菱電機株式会社 Rotor et machine électrique rotative
WO2019244240A1 (fr) * 2018-06-19 2019-12-26 三菱電機株式会社 Rotor et machine électrique tournante
JP6647464B1 (ja) * 2018-06-19 2020-02-14 三菱電機株式会社 回転子および回転電機
JPWO2019244240A1 (ja) * 2018-06-19 2020-12-17 三菱電機株式会社 回転子および回転電機
JP2020137151A (ja) * 2019-02-13 2020-08-31 東芝三菱電機産業システム株式会社 かご形誘導電動機およびかご形回転子
JP7085501B2 (ja) 2019-02-13 2022-06-16 東芝三菱電機産業システム株式会社 かご形誘導電動機およびかご形回転子
CN110581631A (zh) * 2019-09-29 2019-12-17 北京融信雅德科技有限公司 一种节能型三相异步电动机
WO2022064820A1 (fr) * 2020-09-25 2022-03-31 株式会社日立産機システム Rotor
JP7419205B2 (ja) 2020-09-25 2024-01-22 株式会社日立産機システム 回転子、かご形誘導電動機及びドライブシステム

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