WO2021017062A1 - Système de moteur électrique à grande force magnétique à empattement court - Google Patents

Système de moteur électrique à grande force magnétique à empattement court Download PDF

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Publication number
WO2021017062A1
WO2021017062A1 PCT/CN2019/102442 CN2019102442W WO2021017062A1 WO 2021017062 A1 WO2021017062 A1 WO 2021017062A1 CN 2019102442 W CN2019102442 W CN 2019102442W WO 2021017062 A1 WO2021017062 A1 WO 2021017062A1
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WO
WIPO (PCT)
Prior art keywords
rotor shaft
housing
peripheral wall
hole
wall
Prior art date
Application number
PCT/CN2019/102442
Other languages
English (en)
Chinese (zh)
Inventor
张懿
李洋洋
张明明
李垣江
Original Assignee
江苏科技大学
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 江苏科技大学 filed Critical 江苏科技大学
Publication of WO2021017062A1 publication Critical patent/WO2021017062A1/fr

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/17Stator cores with permanent magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/163Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003Couplings; Details of shafts

Definitions

  • the present invention relates to the technical field of servo motors, and more specifically, the present invention relates to a short wheelbase large magnetic motor system.
  • the servo motor can control the speed and position accuracy very accurately, and can convert the voltage signal into torque and speed to drive the control object.
  • the rotor speed of the servo motor is controlled by the input signal and can react quickly. It is used as an actuator in an automatic control system, and has the characteristics of small electromechanical time constant, high linearity, and starting voltage. It can control the received electrical signal Converted into angular displacement or angular velocity output on the motor shaft. Therefore, servo motors can be widely used in various technical fields.
  • the output speed of the servo motor needs to be controlled by the excitation signal, and then output after being decelerated by the reducer. It is not possible to directly adjust the speed through an integrated output mechanism, nor can it provide the selectivity of different speed output ratios.
  • An object of the present invention is to solve at least the above-mentioned problems and provide at least the advantages described later.
  • Another object of the present invention is to provide a short-wheelbase large magnetic motor system.
  • the present invention integrates a speed adjustment mechanism at the output end of the servo motor, so that the servo motor can output two speeds, high speed and low speed, according to the requirements of the application environment. Choose which speed output to provide customers with speed selectivity, making the servo motor more suitable for applications and improving the accuracy of servo control.
  • a short-wheelbase large magnetic motor system including:
  • the rotor shaft is rotatably arranged at the center of the housing shaft, the rotor shaft protrudes a certain distance from both ends of the housing, and the outer periphery of the first end of the rotor shaft is rotatably mounted on the first bearing through a first bearing.
  • the second end of the rotor shaft is provided with a first output interface;
  • a rotor winding which is fixed on the shaft of the rotor shaft, and the rotor winding and the rotor shaft rotate synchronously in the housing;
  • the turntable is provided with a second through hole in the center of the shaft, the turntable is rotatably sleeved on the rotor shaft through the second through hole, and the outer periphery of the second end of the rotor shaft is rotatably mounted on the rotor shaft through a second bearing Outside the second through hole, the inner peripheral wall of the turntable is concentrically enveloped on the outer periphery of the rotor winding;
  • the stator winding is axially slidably arranged on the inner peripheral wall of the turntable through a first concentric slider, the radial position of the first concentric slider on the inner peripheral wall of the turntable is fixed, and the stator winding and The rotor windings are arranged coaxially at intervals;
  • An inner gear plate is coaxially arranged on the inner circumference of the second end of the housing, a third through hole is opened in the center of the inner gear plate shaft, and the second end of the rotor shaft penetrates through the third through hole,
  • a number of planetary gears are arranged at intervals on the outer circumference of the inner toothed disk base, the planetary wheels are meshed between the inner circumferential wall of the inner toothed disk and the outer circumferential wall of the turntable, and a second output is provided on the outer end wall of the inner toothed disk interface;
  • the outer periphery of the end cover is closed by a cover, a first pin is arranged axially telescopically on the center of the cover shaft, a bayonet is opened on the first end wall of the rotor shaft at a corresponding position, and the first pin
  • the inner end is selectively clamped and fixed in the bayonet;
  • the outer end wall of the housing is provided with a third output interface, and the second output interface and the third output interface are selectively locked by a second plug.
  • the outer periphery of the end cover and the outer periphery of the outer cover are sequentially fixed on the open end wall of the first end of the housing by bolts, and the first end of the rotor shaft is enclosed in the outer cover.
  • a first limiting platform is provided on the shaft body at the first end of the rotor shaft, a first snap ring is fixedly sleeved on the first end of the rotor shaft, and the first bearing is covered by the first snap ring. Is limited on the first limiting platform, and the first bearing is sandwiched between the first limiting platform and the inner peripheral wall of the end cover;
  • a second limiting platform protrudes from the inner side wall of the end cover, a third bearing is installed on the second limiting platform, and the third bearing is sandwiched between the second limiting platform and the inner Between the inner side walls of the end of the gear plate.
  • a groove is provided on the inner circumferential wall of the turntable, and a plurality of first linear guide grooves are opened in the axial direction on the groove, and a plurality of first linear guide grooves are protrudingly provided on the outer circumferential wall of the first concentric sliding block along the axis.
  • a guide block through which the first concentric sliding block slides in the groove axially along the first linear guide groove through the first guide block, and both ends of the groove protrude Limited bulge.
  • a circumferential wall protrudes from the outer side wall of the turntable, the circumferential wall is arranged coaxially with the turntable, a second snap ring is fixedly sleeved on the second end of the rotor shaft, and the second The bearing is restricted by the second snap ring between the outer peripheral wall of the circumferential wall and the rotor shaft.
  • the inner toothed disk is installed outside the second axial end of the turntable, and the outer side wall of the inner toothed disk is flush with the outer end wall of the housing and the outer end wall of the rotor shaft.
  • a plurality of rotating shafts are arranged at intervals on the outer circumference of the inner toothed disk base, the planetary gears are rotatably arranged on the rotating shafts, an outer ring gear is provided on the outer peripheral wall of the circumferential wall, and the inner toothed disk An inner gear ring is arranged on the inner peripheral wall, and the planetary gear is meshed between the outer gear ring and the inner gear ring.
  • the inner end of the first plug is provided with a first tooth
  • the bayonet is correspondingly provided with a second tooth
  • the inner end of the first plug is selectively used by the first tooth It is clamped and fixed on the second tooth in the bayonet; the first pin rotates and penetrates the center of the outer cover, and the first pin is axially stretchable at the center of the outer cover.
  • a first opening is opened on the outer peripheral wall of the housing in a radial direction, the first opening extends a certain distance along the axial direction, and the axial extension distance of the first opening is not less than the first opening.
  • Half of the length of the concentric slider; the bottom of both ends of the first opening and the bottom of the center are respectively provided with a first through hole, the distance between the first through holes at both ends of the first opening and the first concentric slider Half of the length is the same; the first through hole communicates the first opening with the inside of the housing;
  • a second concentric slider is axially slidably provided on the outer peripheral wall of the housing outside the first opening, and the first Two concentric sliders covering the upper end of the first opening;
  • a plurality of second linear guide grooves are provided on the outer peripheral wall of the housing on the outer periphery of the first opening along the axial direction, and a plurality of second guide blocks are protrudingly provided along the axis on the outer peripheral wall of the second concentric sliding block.
  • Two concentric sliders slide on the outer peripheral wall of the housing along the axial direction of the second linear guide groove by the second guide block, and the length of the second linear guide groove is the same as that of the first concentric slide Half of the block is the same length.
  • a second through hole is formed radially through the second concentric sliding block, the direction of the second through hole points to the axis of the housing, and the second concentric on the outer periphery of the second through hole
  • a cavity is coaxially opened on the slider, and the cavity is open to the outside;
  • a third pin is telescopically arranged in the second through hole, and the cross section of the third pin and the cross section of the second through hole
  • the cross-section and the cross-section of the first through hole are correspondingly consistent, the width of the third plug is the same as the width of the first opening, a first spring is provided on the outer periphery of the top of the third plug, and the bottom of the first spring Abuts against the bottom of the cavity, the top of the first spring abuts against the top end of the third plug;
  • the length of the third plug is not less than the inner peripheral wall of the stator winding to the outer periphery of the second concentric slider The distance between the walls, the telescopic distance
  • the servo motor of the present invention is configured with two output speeds, high speed and low speed, and has a wider application range;
  • Figure 1 is a schematic diagram of the overall structure when the rotor shaft is rotating
  • Fig. 2 is a schematic diagram of an enlarged structure of part A in Fig. 1;
  • Figure 3 is a schematic diagram of the overall structure when the stator rotates.
  • the present invention provides a short-wheelbase large magnetic motor system, which includes a housing 100, a rotor shaft 300, a rotor winding 310, a turntable 200, a stator winding 210, and an inner gear disk 400.
  • the housing 100 has an open-ended structure at both ends.
  • a cylindrical cavity is provided in the housing 100 to provide a rotation space for the rotation of the rotor shaft 300.
  • the first end of the housing 100 is open in the axial direction.
  • One end cover 110 is closed, and a first through hole is opened in the center of the end cover 110 to reserve space for the output of the rotor shaft 300.
  • the rotor shaft 300 is rotatably arranged at the shaft center of the housing 100.
  • the rotor shaft 300 can be a solid structure or a hollow structure.
  • both the rotor and the stator can rotate independently to output two speeds, but the rotor and the stator Only one can rotate at the same time.
  • the two axial ends of the rotor shaft 300 protrude from the two ends of the housing 100 by a certain distance, that is, they protrude outward from the openings on both sides of the housing 100 for a certain distance to facilitate the outward output connection.
  • the outer periphery of the first axial end of the rotor shaft 300 is rotatably mounted in the first through hole through the first bearing 111, so that the first axial end of the rotor shaft 300 rotates in the first through hole to stabilize the rotor shaft 300.
  • the end cover 110 is installed to stabilize the rotor shaft 300.
  • a first limiting platform is provided on the first end of the rotor shaft 300, a first retaining ring 340 is fixedly sleeved on the first end of the rotor shaft 300, and the first bearing 111 is installed on the first limiting platform , And then install a first snap ring 340 on the rotor shaft 300 at the first axial end of the first bearing 111, so that the first bearing 111 is restricted by the first snap ring 340 on the first stop To avoid axial movement of the first bearing 111.
  • the second end of the rotor shaft 300 is provided with a first output interface 320.
  • the device is fixed on the first output interface 320, and the device can be fixed to the rotor shaft 300.
  • the device rotates synchronously with the rotor shaft 300, and the rotor shaft 300 outputs It is high speed speed.
  • the rotor winding 310 is fixed on the shaft of the rotor shaft 300, and the rotor winding 310 rotates synchronously with the rotor shaft 300 in the housing 100. By exciting the rotor winding 310, the rotor winding 310 and the rotor can be driven.
  • the rotor shaft 300 rotates synchronously, or drives the stator to rotate.
  • the turntable 200 is provided with a second through hole in the center of the shaft.
  • the turntable 200 is rotatably sleeved on the rotor shaft 300 through the second through hole, and the outer circumference of the second end of the rotor shaft 300 rotates through a second bearing 250 Installed outside the second through hole, the inner peripheral wall of the turntable 200 is concentrically wrapped around the outer periphery of the rotor winding 310.
  • the stator winding 210 is fixed on the inner peripheral wall of the turntable 200, and the stator winding 210 and the rotor winding 310 are coaxially spaced apart.
  • the permanent magnet selected for the stator winding 210 is enclosed in the rotor winding At the outer circumference of 310, when the rotor winding 310 is excited, the rotor winding 310 itself can be driven to rotate, or the permanent magnet and the entire turntable 200 can be driven to rotate.
  • the inner toothed disk 400 is coaxially arranged on the inner circumference of the second end of the housing 100.
  • the inner toothed disk 400 includes a base and a peripheral wall 410.
  • a third through hole is opened in the center of the inner toothed disk 400.
  • the rotor shaft 300 The two ends pass through the third through hole.
  • a number of planetary gears 420 are arranged on the outer circumference of the base of the inner toothed disk 400.
  • the planetary wheels 420 mesh with the inner circumferential wall of the inner toothed disk 400 and the outer circumferential wall of the turntable 200 In between, a second output interface 401 is provided on the outer end wall of the inner gear plate 400.
  • the outer circumference of the end cover 110 is closed by an outer cover 120, a first pin 121 is axially telescopically arranged on the axial center of the outer cover 120, and a bayonet 330 is opened on the first end wall of the rotor shaft 300 at a corresponding position.
  • the inner end of the first plug 121 is selectively clamped and fixed in the bayonet 330; the housing 100 is provided with a second first plug 130 telescopically and radially, and the inner end of the second first plug 130 There are clamping teeth, and an internal tooth groove 230 is opened on the outer peripheral wall of the turntable 200 at a corresponding position, and the clamping tooth is selectively clamped and fixed in the internal tooth groove 230, and the second and first teeth are controlled by radial expansion and contraction.
  • the pin 130 can control whether the tooth is locked and fixed in the inner tooth groove 230 to control whether the stator wheel 200 is fixed.
  • a speed adjustment mechanism is integrated at the output end of the servo motor, so that the servo motor can output two speeds, high speed and low speed. Which speed output is selected according to the needs of the application environment, provides customers with speed selectivity, and makes the servo The motor is more suitable for applications and improves the accuracy of servo control.
  • the outer periphery of the end cover 110 and the outer periphery of the outer cover 120 are sequentially fixed on the open end wall of the first end of the housing 100 by bolts, and the first end of the rotor shaft 300 is surrounded by the outer cover Within 120.
  • the outer circumferential wall of the turntable 200 is provided with a plurality of first annular guide grooves 220, and a plurality of first annular guide blocks 140 are protrudingly provided on the inner circumferential wall of the housing 100 at corresponding positions, and the first annular guide blocks 140 are embedded Set in the first annular guide groove 220, the outer peripheral wall of the turntable 200 rotates on the inner peripheral wall of the housing 100 through the first annular guide groove 220 and the first annular guide block 140.
  • a peripheral wall 240 is protrudingly provided on the outer side wall of the turntable 200, and the peripheral wall 240 is arranged coaxially with the turntable 200, and a second snap ring 260 is fixedly sleeved on the second end of the rotor shaft 300, so The second bearing 250 is limited by the second snap ring 260 between the outer peripheral wall of the circumferential wall 240 and the rotor shaft 300.
  • the inner toothed disk 400 is installed outside the second axial end of the turntable 200, and a plurality of second annular guide grooves 411 are opened on the outer circumferential wall of the inner toothed disk 400, and the inner circumferential wall of the housing 100 at corresponding positions A number of second annular guide blocks 150 are protrudingly provided on the upper part.
  • the second annular guide blocks 150 are embedded in the second annular guide groove 411, and the outer peripheral wall of the inner toothed disk 400 passes through the second annular guide groove. 411 and the second annular guide block 150 rotate on the inner peripheral wall of the housing 100.
  • a plurality of rotating shafts 430 are arranged at intervals on the outer periphery of the base of the inner gear plate 400, the planet gears 420 are rotatably arranged on the rotating shaft 430, and an outer gear ring is arranged on the outer peripheral wall of the circumferential wall 240, and the inner gear An inner ring gear is provided on the inner peripheral wall of the disc 400, and the planetary gear 420 is engaged between the outer ring gear and the inner gear ring.
  • the inner end of the first bolt 121 is provided with a first tooth
  • the bayonet 330 is correspondingly provided with a second tooth
  • the inner end of the first bolt 121 is selectively provided with the first tooth. It is clamped and fixed on the second tooth in the bayonet 330 so that the rotor shaft is fixed to the outer cover; the first pin 121 rotates and penetrates the center of the outer cover 120, and the first pin 121 is in the center of the outer cover 120.
  • the center of the outer cover 120 can be extended and contracted in the axial direction, and the first plug 121 is controlled by the axial expansion and contraction, so that the inner end of the first plug 121 is inserted into the bayonet 330.
  • the axial second end wall of the rotor shaft 300 is flush with the outer end wall of the inner toothed disk 400 and protrudes outwardly from the second end of the housing 100 for a certain distance, so as to facilitate external connection and output.
  • a first opening is provided on the outer peripheral wall of the housing in a radial direction, the first opening extends a certain distance along the axial direction, and the axial extension distance of the first opening is not less than the first concentric slider Half of the length; the bottom of both ends of the first opening and the bottom of the center are respectively provided with a first through hole, the distance between the first through holes at both ends of the first opening is consistent with the half of the length of the first concentric slider
  • the first through hole communicates the first opening and the inside of the housing; the outer peripheral wall of the housing outside the first opening is axially slidably provided with a second concentric sliding block, the second concentric sliding A block covering the upper end of the first opening;
  • a plurality of second linear guide grooves are provided on the outer peripheral wall of the housing on the outer periphery of the first opening along the axial direction, and a plurality of second guide blocks are protrudingly provided along the axis on the outer peripheral wall of the second concentric sliding block.
  • Two concentric sliders slide on the outer peripheral wall of the housing along the axial direction of the second linear guide groove by the second guide block, and the length of the second linear guide groove is the same as that of the first concentric slide Half of the block is the same length.
  • a second through hole radially penetrates through the second concentric slider, the direction of the second through hole points to the housing axis, and the second concentric slider on the outer periphery of the second through hole
  • a cavity is coaxially opened, the cavity is open to the outside;
  • a third plug is telescopically arranged in the second through hole, and the cross section of the third plug, the cross section of the second through hole and the The cross-sections of the first through holes are correspondingly consistent, the width of the third pin is consistent with the width of the first opening, a first spring is provided on the outer periphery of the top of the third pin, and the bottom of the first spring abuts against At the bottom of the cavity, the top of the first spring abuts against the top end of the third plug; the length of the third plug is not less than between the inner peripheral wall of the stator winding and the outer peripheral wall of the second concentric slider The telescopic distance of the first spring is not less than the distance from the bottom of the first opening to the
  • the servo motor of the present invention is equipped with high-speed and low-speed output speeds, and has a wider application range. At the same time, it can be directly connected to a high-speed shaft or a low-speed shaft according to the needs of the use environment, which is easy to install and use, and the speed is accurate. high.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un système de moteur électrique à grande force magnétique à empattement court. Une première interface de sortie est disposée au niveau d'une seconde extrémité d'un arbre de rotor ; un enroulement de rotor est fixé sur un corps d'arbre de l'arbre de rotor ; un second trou traversant est formé au centre d'un arbre de disque de rotation ; une paroi circonférentielle interne d'un disque de rotation enveloppe de manière concentrique une circonférence externe de l'enroulement de rotor ; un enroulement de stator est fixé à la paroi circonférentielle interne du disque de rotation, un disque cannelé interne est disposé de manière coaxiale sur une circonférence interne d'une seconde extrémité d'une coque, une roue planétaire s'engrène entre une paroi circonférentielle interne du disque cannelé interne et une paroi circonférentielle externe du disque de rotation, et une seconde interface de sortie est disposée dans une paroi d'extrémité externe du disque cannelé interne ; un premier boulon est disposé axialement et de manière télescopique au centre d'un arbre de couvercle externe, une baïonnette est disposée dans une position, correspondant au premier boulon, d'une première paroi d'extrémité de l'arbre de rotor, et une extrémité côté interne du premier boulon est serrée et fixée de manière sélective dans la baïonnette ; et un second boulon est disposé radialement et de manière télescopique sur la coque, des dents de serrage sont disposées au niveau d'une extrémité latérale interne du second boulon, et les dents de serrage sont sélectivement serrées et fixées dans des rainures de dents internes. Une sélectivité de vitesse de rotation est fournie pour un client, de telle sorte qu'un servomoteur électrique est plus approprié pour une occasion d'application, et la précision de servocommande est améliorée.
PCT/CN2019/102442 2019-07-29 2019-08-26 Système de moteur électrique à grande force magnétique à empattement court WO2021017062A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910689330.9 2019-07-29
CN201910689330.9A CN110417178B (zh) 2019-07-29 2019-07-29 一种短轴距大磁力电机系统

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WO2021017062A1 true WO2021017062A1 (fr) 2021-02-04

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CN (1) CN110417178B (fr)
WO (1) WO2021017062A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113765271A (zh) * 2021-08-24 2021-12-07 深圳拓邦股份有限公司 定子座、定子组件、电机及定子座的加工方法

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US20100289358A1 (en) * 2008-02-13 2010-11-18 Koji Sorida Generator
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CN108282036A (zh) * 2018-01-30 2018-07-13 华中科技大学 一种具有定子旋转型外转子电机的回转型电动阀门
CN108336861A (zh) * 2018-04-23 2018-07-27 上海惠深工具科技有限公司 外转子电机
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CN109845069A (zh) * 2016-10-15 2019-06-04 A·迪隆 扭矩放大装置
CN110011479A (zh) * 2019-05-22 2019-07-12 天津中德应用技术大学 一种转速多策略可控的伺服电机

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US6255751B1 (en) * 1999-09-09 2001-07-03 Torex Corporation Integrated rotary servo actuator
CN1684342A (zh) * 2004-04-14 2005-10-19 沈超然 差动式无级变速电动机
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Publication number Priority date Publication date Assignee Title
DE19920031A1 (de) * 1999-04-26 2000-11-02 Svilen Statev Reibradwellgetriebemotor mit regelbarem Planetengenerator
CN1417922A (zh) * 2002-11-22 2003-05-14 冯鲁民 一种交直流电机的转子和定子的构造
FR2885688A1 (fr) * 2005-05-12 2006-11-17 Sonceboz Sa Sa Suisse Soc Ind Actionneur pour indicateurs de mesures
US20100289358A1 (en) * 2008-02-13 2010-11-18 Koji Sorida Generator
CN109845069A (zh) * 2016-10-15 2019-06-04 A·迪隆 扭矩放大装置
CN108574383A (zh) * 2017-03-09 2018-09-25 李启飞 D型极大负荷可调感应式电机
CN107310685A (zh) * 2017-08-11 2017-11-03 李晓可 一种车轮及摩托车
CN108282036A (zh) * 2018-01-30 2018-07-13 华中科技大学 一种具有定子旋转型外转子电机的回转型电动阀门
CN108336861A (zh) * 2018-04-23 2018-07-27 上海惠深工具科技有限公司 外转子电机
CN110011479A (zh) * 2019-05-22 2019-07-12 天津中德应用技术大学 一种转速多策略可控的伺服电机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113765271A (zh) * 2021-08-24 2021-12-07 深圳拓邦股份有限公司 定子座、定子组件、电机及定子座的加工方法

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CN110417178B (zh) 2022-01-07

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