WO2020129574A1 - Moteur de compresseur électrique, compresseur électrique pourvu de celui-ci et procédé de fabrication d'un moteur de compresseur électrique - Google Patents

Moteur de compresseur électrique, compresseur électrique pourvu de celui-ci et procédé de fabrication d'un moteur de compresseur électrique Download PDF

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Publication number
WO2020129574A1
WO2020129574A1 PCT/JP2019/046780 JP2019046780W WO2020129574A1 WO 2020129574 A1 WO2020129574 A1 WO 2020129574A1 JP 2019046780 W JP2019046780 W JP 2019046780W WO 2020129574 A1 WO2020129574 A1 WO 2020129574A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric compressor
motor
torque
stator
rotor
Prior art date
Application number
PCT/JP2019/046780
Other languages
English (en)
Japanese (ja)
Inventor
真 吉田
Original Assignee
サンデンホールディングス株式会社
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 サンデンホールディングス株式会社 filed Critical サンデンホールディングス株式会社
Priority to CN201980082112.7A priority Critical patent/CN113195893B/zh
Priority to DE112019006344.8T priority patent/DE112019006344T5/de
Publication of WO2020129574A1 publication Critical patent/WO2020129574A1/fr

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Definitions

  • the present invention relates to, for example, a motor for an electric compressor that is housed in a container and drives a compression element, an electric compressor including the same, and a method for manufacturing the motor for an electric compressor.
  • an electric compressor for compressing a refrigerant used in a refrigeration cycle has a container in which a scroll type compression element and a motor for driving the compression element are housed.
  • a stator core including an outer core (yoke member) and an inner core (teeth member) press-fitted therein has also been developed (for example, See Patent Document 1).
  • the inner core was connected between adjacent teeth by a bridge portion, and the outer peripheral shape of this bridge portion was a stepped shape with corners.
  • the bridge portion has such a shape, there is a problem in that the change in the width dimension in the radial direction becomes large, so that the cogging torque increases and the torque ripple also increases.
  • the present invention has been made in order to solve the above-mentioned conventional technical problems, and has an bridge portion that connects the teeth of the inner core, and for an electric compressor that reduces cogging torque and torque ripple as much as possible.
  • An object of the present invention is to provide a motor, an electric compressor including the motor, and a method for manufacturing a motor for an electric compressor.
  • the motor for an electric compressor comprises a stator and a rotor with a built-in permanent magnet that rotates inside the stator.
  • the tips of adjacent teeth are continuous, and the winding is
  • the inner core is composed of an inner core and an outer core that is coupled to the outside of the inner core to form a magnetic path.
  • the inner core has a bridge portion that connects the tips of adjacent teeth.
  • the outer peripheral shape is configured by an arc, and the rotor has an outer peripheral shape having a gap expansion portion in which the gap between the magnetic pole and the inner peripheral surface of the stator widens from the center of the magnetic pole to the space between the magnetic poles.
  • the electric compressor motor according to the invention of claim 2 is characterized in that, in the above invention, the outer peripheral shape of the bridge portion is constituted by a straight line at the center and arcs continuous on both sides thereof.
  • An electric compressor according to a third aspect of the present invention is characterized in that the electric compressor motor of each of the above inventions and a compression element driven by the electric compressor motor are housed in a container.
  • the radius of the arc of the gap expansion part of the rotor is R2
  • the arc of the gap expansion part from the center of the rotor is
  • the offset amount to the center is R1 and the radius of the arc of the outer peripheral shape of the bridge portion of the inner core is R4
  • the offset amount R1 is set to a region in which the cogging torque does not increase and the torque ripple decreases
  • R2 is set to a region where the average torque is suppressed from decreasing, the cogging torque does not increase and the torque ripple decreases
  • the radius R4 is set to a region where the torque ripple does not increase and the cogging torque decreases.
  • the stator in a motor for an electric compressor including a stator and a rotor with a built-in permanent magnet that rotates inside the stator, the stator has adjacent teeth that are continuous with each other and are wound. Since it is composed of the inner core and the outer core which is coupled to the outside of the inner core to form a magnetic path, the density of the windings can be increased to improve the performance. Moreover, since the tips of the teeth are continuous and the rigidity thereof is improved, the amount of deformation of the stator due to the reaction force accompanying the rotation of the rotor is also reduced, and the occurrence of vibration is also suppressed.
  • the inner core is provided with the bridge portion that connects the tips of the adjacent teeth, and the outer peripheral shape of this bridge portion is configured by an arc, so that the width dimension in the radial direction of the bridge portion may change abruptly.
  • the cogging torque and the torque ripple can be suppressed.
  • the rotor since the rotor has an outer peripheral shape having a gap widening portion in which the gap with the inner peripheral surface of the stator is widened from the center of the magnetic pole to the space between the magnetic poles, the induced voltage can be approximated to a sine wave. As a result, the cogging torque and the torque ripple can be reduced while suppressing the decrease in the output torque.
  • the outer peripheral shape of the bridge portion may be an arc shape as a whole, but if the outer peripheral shape of the bridge portion is constituted by a straight line at the center and continuous arcs on both sides thereof as in the invention of claim 2, it may be changed depending on conditions. It becomes possible to reduce the cogging torque and the torque ripple.
  • the motor for electric compressor and the compression element of each of the above inventions are housed in a container to constitute an electric compressor, thereby providing a small-sized high-performance electric compressor. It becomes possible.
  • the radius of the arc of the enlarged gap portion of the rotor is R2 as in the invention of claim 4, and the radius of the arc of the enlarged gap portion from the center of the rotor is R2.
  • the offset amount R1 is set in a region where the cogging torque does not increase and the torque ripple decreases, and the radius
  • R2 By setting R2 to a region where the average torque is suppressed from decreasing, the cogging torque does not increase and the torque ripple decreases, and the radius R4 is set to a region where the torque ripple does not increase and the cogging torque decreases, It is possible to effectively suppress a decrease in output torque and reduce cogging torque and torque ripple.
  • FIG. 3 is an enlarged plan sectional view of an essential part of the motor of FIG. 2. It is a figure which shows the relationship of the offset amount R1 in FIG. 3, and an output torque, a torque ripple, and a cogging torque. It is a figure which shows the relationship between the radius R2 in FIG. 3, and an output torque, a torque ripple, and a cogging torque. It is a figure which shows the relationship of the radius R4 in FIG. 3, and an output torque, a torque ripple, and a cogging torque. It is a figure which compares the cogging torque of this invention and the motor for electric compressors of the conventional structure.
  • the electric compressor 1 of the embodiment is a scroll compressor in which a scroll compression element 3 and a motor (motor for electric compressor) 4 of the present invention are housed in a container 2.
  • the scroll compression element 3 includes a fixed scroll 6 fixed to the container 2 and a movable scroll 7 that is revolved by the rotation shaft 8 of the motor 4 without rotating with respect to the fixed scroll 6.
  • the spiral wrap 11 formed and the spiral wrap 12 formed on the movable scroll 7 are arranged so as to mesh with each other.
  • the refrigerant is introduced into the container 2 from a refrigerant introduction passage (not shown), and is sucked into the compression chamber formed between the wraps 11 and 12 from the outside. Since this compression chamber becomes narrower toward the center due to the orbital motion of the movable scroll 7, the sucked refrigerant is compressed and discharged from the central portion through the discharge chamber 14 and a refrigerant discharge passage (not shown). Further, since the pressure inside the container 2 becomes low, the refrigerant also passes around the motor 4, and the motor 4 is cooled by this refrigerant.
  • the motor 4 of the embodiment is a permanent magnet synchronous motor, and includes a stator 21 including a core 22 and a winding wire 23, and a magnet-embedded rotor 24 (a plurality of electromagnetic fields) that is fixed to the rotating shaft 8 and rotates inside the stator 21. It is made by stacking steel sheets).
  • the core 22 of the stator 21 is divided into two parts in which an inner core 26 (inner core) having a plurality of teeth 27 (a number corresponding to the number of poles; 12 in the embodiment) and an outer core 28 (outer core) are separated.
  • the distal end portions 27A and 27A of the teeth 27 and 27 adjacent to the inner core 26 are configured to be continuous with each other by the bridge portion 29.
  • the slots 31 between the teeth 27 of the inner core 26 are shaped to open outward and close in the center.
  • the inner core 26 and the outer core 28 are formed by laminating a plurality of electromagnetic steel plates and joining them together. Further, the same number of fitting recesses 32 as the teeth 27 of the inner core 26 are formed inside the outer core 28.
  • the winding wire 23 is wound around a bobbin 33 made of an insulating material in advance, and the bobbin 33 has a mounting hole 34 into which the tooth 27 of the inner core 26 is inserted.
  • the inner core 26 and the outer core 28 are formed by stacking and joining electromagnetic steel plates.
  • the winding wire 23 is wound around the bobbin 33, and 12 pieces thereof are prepared.
  • the teeth 27 of the inner core 26 are inserted into the mounting holes 34 of each bobbin 33 around which the winding wire 23 is wound, and the bobbins 33 are mounted on all the teeth 27 from the outside (a total of 12 pieces are mounted).
  • the winding wire 23 is wound around the inner core 26.
  • the inner core 26 provided with the winding wire 23 is fitted into the outer core 28.
  • the outer ends of the teeth 27 of the inner core 26 are fitted into the fitting recesses 32 of the outer core 28, whereby the inner core 26 and the outer core 28 are integrated (FIG. 3).
  • the winding wire 23 of each bobbin 33 is wired so as to form a predetermined electric circuit.
  • the tips 27A of the teeth 27 are continuous, and the windings 23 are mounted from the outside in the slots 31 that are open to the outside. Therefore, a nozzle is inserted from the gap between the tips of the teeth to wind the windings. It is possible to increase the density of the windings and to improve the performance, as compared with a motor that directly winds.
  • the rigidity of the inner core 26 is improved because the distal end portions 27A of the teeth 27 are continuous by the bridge portion 29, so that the amount of deformation of the core 22 of the stator 21 due to the reaction force due to the rotation of the rotor 24 is also increased. There is an advantage that the generation of vibration is suppressed.
  • the outer peripheral shape of the bridge portion 29 of the inner core 26 of the stator 21 is configured by the straight line L1 at the center and the arcs A1 smoothly continuous on both sides thereof.
  • the outer peripheral shape of the bridge portion 29 may be a circular arc shape as a whole, but with such a shape, the width dimension in the radial direction of the bridge portion 29 does not suddenly change, and the cogging torque and the torque are reduced. The ripple can be suppressed.
  • the rotor 24 is composed of a rotor core 37 formed by laminating a plurality of electromagnetic steel plates having holes 36 for housing permanent magnets, and a permanent magnet 38 housed and held in each hole 36. Then, the rotor 24 rotates via the gap with the inner peripheral surface of the teeth 27 of the stator 21.
  • the number of pole pairs of the rotor 24 of the embodiment is eight, and the permanent magnets 38 corresponding to the number are incorporated.
  • the rotor 24 has an outer peripheral shape including the gap expanding portion 24A in which the gap between the inner peripheral surface of the teeth 27 of the stator 21 widens from the center of the magnetic pole to the space between the magnetic poles.
  • FIGS. 3 to 7 a method for setting the shape of the gap expansion portion 24A of the rotor 24 and the bridge portion 29 of the stator 21 will be described.
  • the angle ⁇ 1 in FIG. 3 is 2 ⁇ /N [rad].
  • a straight line B passing through the central portion of one magnet 38 at a right angle is used as a reference of an angle, and a line drawn from the center O0 of the rotor 24 at a position rotated clockwise by an angle ⁇ 2/2 is denoted by A.
  • a recessed gap expansion portion 24A is formed in the outer diameter portion of the rotor 24 that intersects with the line A.
  • each recess is composed of two gap expanding portions 24A, and the radius R2 is the radius of the arc of the gap expanding portion 24A.
  • the radius of the arc A1 of the outer peripheral shape of the bridge portion 29 is R4 (FIG. 3)
  • the rotor 24 having a shape including an arc from the center O0 (radius R3) and an arc from the point O1 (radius R2).
  • the parameters constituting the shape of the stator 21 having the radius R4 of the arc A1 of the bridge portion 29 of the tooth 27 those having a great influence on the cogging torque, torque ripple (torque pulsation), and average torque are:
  • FIGS. 4 to 6 show changes in the cogging torque, the torque ripple, and the average torque when the offset amount R1, the radius R2, and the radius R4 are changed.
  • the rhombus shows the average torque
  • the square shows the torque ripple
  • the triangle shows the cogging torque.
  • the offset amount R1 is set to a region near point E in FIG.
  • the radius R2 is set in the region near point F in FIG. 5 where the torque ripple and the cogging torque intersect.
  • the radius R4 when the radius R4 is increased, the average torque does not substantially change, the torque ripple increases from a certain time, and the cogging torque decreases and becomes almost flat. Therefore, in order to reduce the cogging torque while keeping the torque ripple small, the radius R4 is set in a region near point G in FIG. 6 where the cogging torque changes from decreasing to leveling.
  • X1 represents the cogging torque of a general motor
  • X2 represents the cogging torque of the motor of Patent Document 1
  • X3 represents the cogging torque of the motor 4 of the present invention.
  • the cogging torque of the motor 4 of the present invention is half that of the motor of Patent Document 1, and can be reduced to about 1/10 of the case of the conventional motor.
  • the motor 4 of the present invention is suitable for various electric compressors such as a rotary electric compressor without being limited thereto.

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

Abstract

La présente invention concerne un moteur de compresseur électrique ayant des parties ponts s'étendant entre des dents dans un noyau interne, où un couple de denture et des ondulations de couple sont réduites autant que possible. Un stator (21) est conçu à partir d'un noyau interne (26) dans lequel les pointes de dents adjacentes (27) sont continues et des enroulements (23) sont disposés autour du noyau, et à partir d'un noyau externe (28) qui s'accouple avec le côté externe du noyau interne pour former un trajet magnétique. Le noyau interne présente des parties ponts (29) s'étendant entre les pointes de dents adjacentes, et les formes périphériques externes des parties ponts sont chacune conçues dans un arc A1. Un rotor (24) est pourvu de parties d'élargissement d'espace (24A) dans lesquelles un espace avec la surface périphérique interne du stator s'élargit depuis les centres de pôles magnétiques vers les espaces entre les pôles magnétiques.
PCT/JP2019/046780 2018-12-20 2019-11-29 Moteur de compresseur électrique, compresseur électrique pourvu de celui-ci et procédé de fabrication d'un moteur de compresseur électrique WO2020129574A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980082112.7A CN113195893B (zh) 2018-12-20 2019-11-29 电动压缩机用马达、包括其的电动压缩机及电动压缩机马达的制造方法
DE112019006344.8T DE112019006344T5 (de) 2018-12-20 2019-11-29 Motor für einen elektrisch angetriebenen Kompressor, elektrisch angetriebener Kompressor, der diesen umfasst, und Verfahren zum Herstellen eines Motors für einen elektrisch angetriebenen Kompressor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-238251 2018-12-20
JP2018238251A JP2020102911A (ja) 2018-12-20 2018-12-20 電動圧縮機用モータ、それを備えた電動圧縮機、及び、電動圧縮機用モータの製造方法

Publications (1)

Publication Number Publication Date
WO2020129574A1 true WO2020129574A1 (fr) 2020-06-25

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PCT/JP2019/046780 WO2020129574A1 (fr) 2018-12-20 2019-11-29 Moteur de compresseur électrique, compresseur électrique pourvu de celui-ci et procédé de fabrication d'un moteur de compresseur électrique

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Country Link
JP (1) JP2020102911A (fr)
CN (1) CN113195893B (fr)
DE (1) DE112019006344T5 (fr)
WO (1) WO2020129574A1 (fr)

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JP2003264947A (ja) * 2002-03-08 2003-09-19 Fujitsu General Ltd 永久磁石電動機
JP2004304997A (ja) * 2003-03-18 2004-10-28 Asmo Co Ltd ステータ及びブラシレスモータ
JP2006238667A (ja) * 2005-02-28 2006-09-07 Matsushita Electric Ind Co Ltd 電動機
JP2007181259A (ja) * 2005-12-27 2007-07-12 Matsushita Electric Ind Co Ltd ブラシレスモータ
JP2014103730A (ja) * 2012-11-19 2014-06-05 Mitsuba Corp ブラシレスモータ及びそれに用いられるロータコア並びにロータコアの製造方法
JP2015037379A (ja) * 2013-08-09 2015-02-23 ジョンソン エレクトリック ソシエテ アノニム 単相ブラシレスモータ
WO2015186455A1 (fr) * 2014-06-06 2015-12-10 三菱電機株式会社 Moteur à aimants permanents, et moteur à aimants permanents à entraînement intégré
JP2016116391A (ja) * 2014-12-17 2016-06-23 サンデンホールディングス株式会社 コンプレッサ用モータ及びそれを備えたコンプレッサ

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JPH0898440A (ja) * 1994-09-16 1996-04-12 Asmo Co Ltd 回転磁界型電動機の固定子
WO2007123057A1 (fr) * 2006-04-17 2007-11-01 Panasonic Corporation Moteur
JP5147343B2 (ja) * 2007-09-25 2013-02-20 日立アプライアンス株式会社 洗濯機ファン駆動用永久磁石式回転電動機
CN103999329B (zh) * 2011-12-26 2016-08-24 三菱电机株式会社 永久磁铁嵌入式电动机的转子及使用其的压缩机、鼓风机和制冷空调装置
CN104348271B (zh) * 2013-08-09 2019-07-23 德昌电机(深圳)有限公司 单相无刷电机
JP6357870B2 (ja) * 2014-05-22 2018-07-18 富士電機株式会社 永久磁石式電動機
JP6664958B2 (ja) * 2015-12-25 2020-03-13 サンデンホールディングス株式会社 コンプレッサ用モータ及びそれを備えたコンプレッサ

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003264947A (ja) * 2002-03-08 2003-09-19 Fujitsu General Ltd 永久磁石電動機
JP2004304997A (ja) * 2003-03-18 2004-10-28 Asmo Co Ltd ステータ及びブラシレスモータ
JP2006238667A (ja) * 2005-02-28 2006-09-07 Matsushita Electric Ind Co Ltd 電動機
JP2007181259A (ja) * 2005-12-27 2007-07-12 Matsushita Electric Ind Co Ltd ブラシレスモータ
JP2014103730A (ja) * 2012-11-19 2014-06-05 Mitsuba Corp ブラシレスモータ及びそれに用いられるロータコア並びにロータコアの製造方法
JP2015037379A (ja) * 2013-08-09 2015-02-23 ジョンソン エレクトリック ソシエテ アノニム 単相ブラシレスモータ
WO2015186455A1 (fr) * 2014-06-06 2015-12-10 三菱電機株式会社 Moteur à aimants permanents, et moteur à aimants permanents à entraînement intégré
JP2016116391A (ja) * 2014-12-17 2016-06-23 サンデンホールディングス株式会社 コンプレッサ用モータ及びそれを備えたコンプレッサ

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DE112019006344T5 (de) 2021-09-09
JP2020102911A (ja) 2020-07-02
CN113195893B (zh) 2023-04-11
CN113195893A (zh) 2021-07-30

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