WO2014190661A1 - Structure de rotor de moteur - Google Patents

Structure de rotor de moteur Download PDF

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Publication number
WO2014190661A1
WO2014190661A1 PCT/CN2013/085762 CN2013085762W WO2014190661A1 WO 2014190661 A1 WO2014190661 A1 WO 2014190661A1 CN 2013085762 W CN2013085762 W CN 2013085762W WO 2014190661 A1 WO2014190661 A1 WO 2014190661A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor core
piece
outer rotor
side wall
inner rotor
Prior art date
Application number
PCT/CN2013/085762
Other languages
English (en)
Chinese (zh)
Inventor
潘明攀
Original Assignee
中山大洋电机股份有限公司
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 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2014190661A1 publication Critical patent/WO2014190661A1/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
    • H02K1/22—Rotating parts of the magnetic circuit

Definitions

  • the utility model relates to a rotor structure of an electric machine.
  • the existing motor rotor structure mainly includes two types: the first type is that the outer rotor core is nested outside the inner rotor core, and the shock absorbing rubber is filled between the outer rotor core and the inner rotor core, and the damping rubber transmission torque is Relying on the tearing force of the outer rotor core and the inner rotor core on the damping rubber, but when the damping rubber is aged, the way of transmitting the torque will be invalid, and the rotor of the motor is easily damaged when operating, and at the same time, the torque of the motor Increment, the motor rotor of this structure is not suitable.
  • the motor rotor of this structure is mostly used in motors with less than 100W power; the second is that the outer rotor core and the inner rotor core are connected by elastic sheets.
  • the force is usually dependent on the two end points of the elastic piece and the outer rotor core and the inner rotor core.
  • the rotor of this structure has high requirements on the elastic piece, and the elastic piece is required to have uniform force and installation elasticity in all directions. The accuracy of the film is high. If one or a few of the elastic pieces become soft, the balance state will be broken, and the inner rotor core and the outer rotor core will inevitably Now the heart of the different operating states, the motor is running will deteriorate.
  • the purpose of the utility model is to provide a rotor structure of a motor, which has the advantages of simple structure, good shock absorption effect, low noise, high reliability and long service life.
  • An electric motor rotor structure comprises an inner rotor core and an outer rotor core, wherein an inner shaft of the inner rotor core is provided with a shaft hole through which the rotating shaft can pass, and a cavity for accommodating the inner rotor core is disposed in the middle of the outer rotor core
  • the outer rotor core is nested outside the inner rotor core, and a gap is formed between the inner rotor core and the outer rotor core, and a plurality of inner rotor core pieces protrude from the outer side wall of the inner rotor core, and the inner side of the outer rotor core
  • the elastic connecting piece is mounted, and the inner rotor core piece and the outer rotor core piece respectively press the front wall
  • the elastic connecting member described above is a wave elastic piece.
  • the wave shrapnel described above fluctuates in the axial direction of the rotor.
  • the outer rotor core and the inner rotor core described above are filled with a damping rubber.
  • the outer rotor core of the inner rotor core has a plurality of inner rotor core pieces uniformly extending circumferentially, and a plurality of outer rotor core pieces are uniformly protruded circumferentially on the inner side wall of the outer rotor core.
  • the width of the elastic connecting member described above is greater than or equal to the width of the inner rotor core piece, and the width of the elastic connecting member is also greater than or equal to the width of the outer rotor core piece.
  • the root portion of the inner rotor core tooth piece is disposed at a first support plane, and the root portion of the outer rotor core tooth piece is provided with a second support plane, and the two side walls of the elastic connecting member respectively abut the first support plane and the second support flat.
  • the number of inner rotor core pieces described above is eight, and the number of outer rotor core pieces is also eight.
  • the inner wall of the cavity described above is octagonal.
  • the utility model has the following effects: 1) The outer rotor core is nested outside the inner rotor core, and a plurality of inner rotor core pieces protrude from the outer side wall of the inner rotor core, and the outer rotor core a plurality of outer rotor core pieces are circumferentially extended on the inner side wall, and each inner rotor core piece is matched with an outer rotor core piece, and each inner rotor core piece is combined with an outer rotor core tooth
  • An elastic connecting piece is installed between the pieces, and the inner rotor core piece and the outer rotor core piece respectively press the front wall surface of the elastic connecting piece And the rear wall surface, the structure is simple, the transmission of the torque is transmitted through the front wall surface and the rear wall surface of the elastic connecting member perpendicular to the torque direction, the rotor damping effect of the structure is better, the motor running is more stable, and the motor running is reduced.
  • the two side walls of the elastic connecting member are respectively abutted against the outer side wall of the inner rotor core and the inner side wall of the outer rotor core, so that the elastic connecting member does not shift during the operation of the rotor or
  • the deformation is firmly fixed between the outer side wall of the inner rotor core and the inner side wall of the outer rotor core, so that the concentricity of the inner rotor core and the outer rotor core during operation is ensured, and the reliability of the motor operation is improved.
  • the elastic connecting piece is a wave-shaped elastic piece, and the wave-shaped elastic piece is fluctuated along the axial direction of the rotor.
  • the compression and rebound of the wave-shaped elastic piece can effectively resist the fluctuation of the torque, can effectively buffer the torque, and improve the rotor of the motor.
  • the shock absorbing ability makes the motor run more smoothly; 3)
  • the shock absorbing rubber is filled between the outer rotor core and the inner rotor core, and the shock absorbing rubber
  • the elastic buffering function further improves the shock absorbing capacity of the rotor of the motor; 4) a plurality of inner rotor core pieces are uniformly extended circumferentially on the outer side wall of the inner rotor core, and the inner side wall of the outer rotor core is uniformly extended circumferentially
  • the rotor core pieces, the two side walls of the elastic connecting member respectively abut the first supporting plane and the second supporting plane, the number of inner rotor core pieces is eight, and the number of outer rotor core pieces is also eight.
  • the structure is simple, the number of the inner rotor core piece and the outer rotor core piece is designed reasonably, so that the inner rotor core and the outer rotor core are more evenly stressed, the vibration damping capability of the motor rotor is improved, and the motor rotor is avoided. Uneven force causes damage to the local motor rotor, improves the reliability of the motor rotor, and prolongs the service life of the motor rotor.
  • Figure 1 is a perspective view of the present invention.
  • Figure 2 is an exploded view of the present invention.
  • Figure 3 is a perspective view of the elastic connecting member of the present invention.
  • Figure 4 is a plan view of the present invention.
  • Figure 5 is a cross-sectional view taken along line AA of Figure 4 .
  • Fig. 6 is a cross-sectional view taken along line BB of Fig. 5;
  • the utility model relates to a rotor structure of an electric motor, which comprises an inner rotor core 1 and an outer rotor core 2, and an inner shaft core 11 is provided with a shaft hole 11 through which a rotating shaft can pass,
  • a rotor 21 for accommodating the inner rotor core 1 is disposed in the middle of the rotor core 2, and the outer rotor core 2 is nested outside the inner rotor core 1, and the inner rotor core 1 and the outer rotor core 2 are formed.
  • a plurality of inner rotor core pieces 12 are circumferentially protruded from the outer side wall of the inner rotor core 1, and a plurality of outer rotor core pieces 22 are circumferentially extended on the inner side wall of the outer rotor core 2, and each inner rotor core piece 12 is Cooperating with an outer rotor core tooth piece 22, and each inner rotor core piece 12 is connected with an outer rotor core piece 22 with an elastic connecting piece 3, an inner rotor core piece 12 and an outer rotor
  • the core teeth piece 22 presses the front wall surface and the rear wall surface of the elastic connecting member 3, respectively, and the two side walls of the elastic connecting member 3 abut against the outer side wall of the inner rotor core 1 and the inner side wall of the outer rotor core 2, respectively.
  • the elastic connecting member 3 is a wave elastic piece.
  • the wave shrapnel fluctuates along the axial direction of the rotor.
  • the shock absorbing rubber 4 is filled between the outer rotor core 2 and the inner rotor core 1.
  • the inner rotor core 1 has a plurality of inner rotor core fins 12 extending uniformly in the circumferential direction on the outer side wall, and a plurality of outer rotor core fins 22 are uniformly protruded circumferentially on the inner side wall of the outer rotor core 2.
  • the width L of the elastic connecting member 3 is greater than or equal to the width of the inner rotor core piece 12, and the width L of the elastic connecting member 3 is also greater than or equal to the width of the outer rotor core piece 22.
  • the root of the inner rotor core tooth piece 12 is provided with a first support plane 120
  • the root of the outer rotor core tooth piece 22 is provided with a second support plane 220
  • the two side walls of the elastic connecting member 3 respectively abut the first support plane 120 and the first Two support planes 220.
  • the number of inner rotor core pieces 12 is eight
  • the number of outer rotor core pieces 22 is also eight.
  • the inner wall of the cavity 21 is octagonal.
  • the principle of the utility model is: the outer rotor core 2 is nested outside the inner rotor core 1, and each inner rotor core piece 12 is matched with an outer rotor core piece 22, and each inner rotor iron
  • An elastic connecting member 3 is disposed between the core tooth piece 12 and an outer rotor core piece 22, and the two side walls of the elastic connecting piece 3 respectively abut the outer side wall of the inner rotor core 1 and the inner side wall of the outer rotor core 2
  • the structure is simple, the rotor damping effect is good, the motor running noise is small, and it is suitable for a high-power motor, and the concentricity of the inner rotor core 1 and the outer rotor core 2 during operation is ensured, and the reliability of the motor operation is improved. Extend the life of the motor.

Landscapes

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

Abstract

Cette invention concerne une structure de rotor de moteur, comprenant un noyau interne de rotor (1) et un noyau externe de rotor (2). Le noyau externe de rotor (2) est emboîté à l'extérieur du noyau interne de rotor (1) et un espacement est formé entre le noyau interne de rotor (1) et le noyau externe de rotor (2). Une pluralité de plaques de denture de noyau interne de rotor (12) s'étend vers l'extérieur dans un sens circonférentiel à partir d'une paroi latérale externe du noyau interne de rotor (1), et une pluralité de plaques de denture de noyau externe de rotor (22) s'étend vers l'extérieur à partir d'une paroi latérale interne du noyau externe de rotor (2). Chaque plaque de denture de noyau interne de rotor (12) s'adapte de manière correspondante dans une plaque de denture de noyau externe de rotor (22) et un connecteur élastique (3) est monté entre la plaque de denture de noyau interne de rotor (12) et la plaque de denture de noyau externe de rotor (22). La plaque de denture de noyau interne de rotor (12) et la plaque de denture de noyau externe de rotor (22) s'appuient séparément de manière serrée contre une surface de paroi avant et une surface de paroi arrière du connecteur élastique (3), et deux parois latérales du connecteur élastique (3) sont en contact serré avec la paroi latérale externe du noyau interne de rotor (1) et la paroi latérale interne du noyau externe de rotor (2), séparément. La structure selon l'invention est simple, elle présente un bon effet d'amortissement, un bruit réduit, une haute fiabilité et une longue durée de vie.
PCT/CN2013/085762 2013-05-31 2013-10-23 Structure de rotor de moteur WO2014190661A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201320308695 CN203278576U (zh) 2013-05-31 2013-05-31 一种电机转子结构
CN201320308695.0 2013-05-31

Publications (1)

Publication Number Publication Date
WO2014190661A1 true WO2014190661A1 (fr) 2014-12-04

Family

ID=49508902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/085762 WO2014190661A1 (fr) 2013-05-31 2013-10-23 Structure de rotor de moteur

Country Status (2)

Country Link
CN (1) CN203278576U (fr)
WO (1) WO2014190661A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204030755U (zh) * 2014-06-24 2014-12-17 中山大洋电机股份有限公司 一种电机转子及应用其的塑封电机
CN106301134A (zh) * 2015-06-08 2017-01-04 华帝股份有限公司 一种可控硅调速吸油烟机的控制方法及控制装置
CN105162269B (zh) * 2015-10-22 2018-01-30 珠海格力节能环保制冷技术研究中心有限公司 一种外转子铁芯、减震转子及电机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005051940A (ja) * 2003-07-30 2005-02-24 Fujitsu General Ltd アキシャルギャップ型電動機
JP2007209163A (ja) * 2006-02-03 2007-08-16 Nok Corp 永久磁石回転子の防振構造
CN201051686Y (zh) * 2007-06-04 2008-04-23 广东威灵电机制造有限公司 电动机的永磁转子
CN101442229A (zh) * 2007-11-20 2009-05-27 日本电产芝浦株式会社 电机转子及电机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005051940A (ja) * 2003-07-30 2005-02-24 Fujitsu General Ltd アキシャルギャップ型電動機
JP2007209163A (ja) * 2006-02-03 2007-08-16 Nok Corp 永久磁石回転子の防振構造
CN201051686Y (zh) * 2007-06-04 2008-04-23 广东威灵电机制造有限公司 电动机的永磁转子
CN101442229A (zh) * 2007-11-20 2009-05-27 日本电产芝浦株式会社 电机转子及电机

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