WO2006017973A1 - Moteur c.a. triphasé de type double - Google Patents

Moteur c.a. triphasé de type double Download PDF

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Publication number
WO2006017973A1
WO2006017973A1 PCT/CN2005/001091 CN2005001091W WO2006017973A1 WO 2006017973 A1 WO2006017973 A1 WO 2006017973A1 CN 2005001091 W CN2005001091 W CN 2005001091W WO 2006017973 A1 WO2006017973 A1 WO 2006017973A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
stators
sets
casing
rotors
Prior art date
Application number
PCT/CN2005/001091
Other languages
English (en)
Chinese (zh)
Inventor
Peng Liu
Jianguo Dong
Original Assignee
Peng Liu
Jianguo Dong
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 Peng Liu, Jianguo Dong filed Critical Peng Liu
Publication of WO2006017973A1 publication Critical patent/WO2006017973A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • 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

Definitions

  • the invention relates to an alternating current motor, in particular a compound three-phase alternating current motor.
  • the object of the present invention is to provide a three-phase alternating current motor having a large starting power and a small operating power, which can effectively overcome the drawbacks of the prior art.
  • a three-phase three-phase alternating current motor comprising a casing, a stator and a rotor, the stator being fixed in the casing, the rotor being surrounded by the stator and supported by the rotor shaft in the casing
  • the utility model is characterized in that two sets of stators are arranged side by side in the axial direction of the rotor shaft in the casing, and two rotors are installed at positions corresponding to the two sets of stators on the rotor shaft.
  • a gap may be left between the two sets of stators or blocked by a non-magnetic material.
  • the two sets of stators When starting, the two sets of stators are energized, the motor generates a large starting torque, and after the normal operation and the load is reduced, only one of the stators is energized to match the motor output with the load.
  • Figure 1 is a schematic structural view of a standard three-phase AC motor
  • FIG. 2 is a schematic structural view of a motor of the present invention.
  • Figure 1 shows the structure of a standard three-phase AC motor. It comprises a casing 4, a squirrel cage rotor 2, a stator composed of a stator core 3 and a stator winding 5, the stator being fixed in the casing 4, the rotor 2 being surrounded by the stator and supported by the rotor shaft 1 in the casing 4.
  • the front end cover 10 and the rear end cover 8 are respectively connected to the front and rear ends of the casing 4
  • the front bearing 11 and the rear bearing 9 are respectively connected to the front end cover 10 and the rear end cover 8, and the rotor shaft 1 is supported by the front bearing 1 1.
  • the front end of the rotor shaft 1 is exposed to the casing 4.
  • the stator winding 5 When the stator winding 5 is energized, the rotating magnetic field generated by the stator drives the rotor 2 to rotate.
  • a fan cover 6 and a fan 7 are mounted at the rear end of the casing 4 for dissipating heat from the motor.
  • FIG. 2 is a schematic structural view of a compound three-phase AC motor according to the present invention. It also includes a casing 4, a stator and a rotor.
  • the stator is fixed in the casing 4, and the rotor is surrounded by the stator and passes through the rotor shaft. It is housed in the casing 4.
  • the present invention is characterized in that two sets of stators are mounted side by side in the axial direction of the rotor shaft 1 in the casing 4, that is, two sets of stator cores 3a and 3b are press-fitted in the casing 4, and are respectively wound in the wire grooves of the stator core.
  • the windings 5a and 5b; and the two squirrel-cage rotors 2a, 2b are press-fitted at the position of the rotor shaft 1 corresponding to the two sets of stators.
  • the assembly process of the motor of the present invention is: firstly, two sets of stator cores 3a and 3b are press-fitted in the casing 4, and two sets of stator windings 5a and 5b are wound in the core groove of the core, and press-fitted at corresponding positions of the rotor shaft 1
  • Two squirrel cage rotors 2a and 2b then, according to the ordinary motor manufacturing process, the front and rear bearings 11 and 9 are hot-fitted, the rotor shaft 1 is inserted into the casing 4, and the front and rear end covers 10 and 8 are pressed, and the casing 4 is tight.
  • the fixed position maintains a designed gap between the squirrel cage rotor and the stator core; finally, the fan 7 and the fan cover 6 are mounted at the rear end of the rotor shaft 1, that is, the assembly of the motor of the present invention is completed.
  • the motor of the invention When the motor of the invention is powered on, for example, when two sets of stator windings 5a and 5b are energized, the two sets of stators and rotors can generate a sufficient starting torque, and after being put into normal operation and the load is reduced, one set of stators can be given. The winding is energized to match the motor output to the load.
  • gaps may be left between the two sets of stators or blocked by a non-magnetic material.
  • the motor of the invention Compared with the high starting torque (high slip) motor and the double power (double winding or tap single winding) motor, the motor of the invention has the advantages that the starting power and the running power can be arbitrarily combined, thereby ensuring reliable starting and operating power. Match the load to achieve optimum operating efficiency and achieve the highest power factor performance.
  • the motor parameters of the invention are still manufactured according to the Y series international standard, and have the optimal economic and technical indexes, so the efficiency and power factor of the motor operation are not attained by any other special motor, and the Y series motor technology is highly mature and reliable. Simple structure. Therefore, the motor of the present invention is in various industrial fields, and as long as the working conditions are suitable, the energy saving effect thereof will be obvious. If the motor of the present invention was tested on a oil field pumping unit, the results show that the power saving can reach more than 26%.

Landscapes

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

Abstract

Moteur à courant alternatif triphasé de type double comportant un carter, des stators et des rotors. Lesdits stators sont montés sur le carter et entourent les rotors. Les rotors sont soutenus à l’intérieur du carter par un arbre de rotors. Deux jeux de stators sont juxtaposés dans le carter dans le sens de l’arbre de rotors, et les rotors sont disposés aux positions correspondantes. Au démarrage dudit moteur, deux jeux de stators sont mis sous tension, le moteur peut donc produire un fort moment de démarrage. Lorsque le moteur passe à l’état de fonctionnement normal et que la charge est réduite, un seul jeu de stators est mis sous tension ; le moteur peut donc produire un moment nominal. L’invention ci-décrite présente les avantages suivants : la plage combinant la puissance de démarrage et de la puissance d’exploitation est large ; l’efficacité d’accouplement est bon et l’économie d’énergie produite est évidente.
PCT/CN2005/001091 2004-08-17 2005-07-21 Moteur c.a. triphasé de type double WO2006017973A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200410058153 CN1684344A (zh) 2004-08-17 2004-08-17 复式三相交流电动机
CN200410058153.8 2004-08-17

Publications (1)

Publication Number Publication Date
WO2006017973A1 true WO2006017973A1 (fr) 2006-02-23

Family

ID=35263524

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001091 WO2006017973A1 (fr) 2004-08-17 2005-07-21 Moteur c.a. triphasé de type double

Country Status (2)

Country Link
CN (1) CN1684344A (fr)
WO (1) WO2006017973A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111030411A (zh) * 2019-11-18 2020-04-17 航天科工智能机器人有限责任公司 一种组合力矩电机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87212959U (zh) * 1987-08-29 1988-05-18 朝阳市特种电机厂 一种三速电动机
CN2277143Y (zh) * 1996-11-19 1998-03-25 曹志成 塔式起重机专用三速异步制动电动机
CN2279740Y (zh) * 1996-10-25 1998-04-22 滕国兴 三相异步复式电动机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87212959U (zh) * 1987-08-29 1988-05-18 朝阳市特种电机厂 一种三速电动机
CN2279740Y (zh) * 1996-10-25 1998-04-22 滕国兴 三相异步复式电动机
CN2277143Y (zh) * 1996-11-19 1998-03-25 曹志成 塔式起重机专用三速异步制动电动机

Also Published As

Publication number Publication date
CN1684344A (zh) 2005-10-19

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