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STATOR TEETH, STATOR, ROTATING ARMATURE, AND METHOD FOR CONTROLLING ROTATING ARMATURE

外国特許コード F120006932
整理番号 S2010-1261
掲載日 2012年10月11日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2012JP051895
国際公開番号 WO 2012102400
国際出願日 平成24年1月27日(2012.1.27)
国際公開日 平成24年8月2日(2012.8.2)
優先権データ
  • 特願2011-015774 (2011.1.27) JP
発明の名称 (英語) STATOR TEETH, STATOR, ROTATING ARMATURE, AND METHOD FOR CONTROLLING ROTATING ARMATURE
発明の概要(英語) A motor that is capable of exhibiting multiple driving characteristics by the motor alone so as to expand the output range is provided. Three coils are wound around each stator tooth (A-F); and each stator tooth (A-F) is provided with a switch that is capable of achieving a concentrated winding state by serially connecting the three coils and a switch that is capable of achieving a distributed winding state by serially connecting a given set of coils between adjoining stator teeth (A-F). Switching between the concentrated winding state and the distributed winding state is made according to a rotating speed, a torque, or the like.
従来技術、競合技術の概要(英語) BACKGROUND ART
A permanent magnet synchronous motor using a permanent magnet for the rotor is, as compared with that of the induction machine or other high-power, high efficiency motor. The stator comprises a laminated silicon steel sheets punched out and used, a silicon steel sheet coil is wound. Generated from the permanent magnet of the rotor and interlinks with the coil by the magnetic flux, induced voltage is generated in the coil, the coil connected to the higher voltage is applied to the induced voltage from the inverter, current in synchronization with the rotation of the rotor by flowing through the coil produces the torque.
At this time, the induced voltage is proportional to the rotational speed to become large, the induced voltage than the voltage of the inverter increases in the coil current cannot be energized, the motor torque cannot be generated, the rotational speed upper limit is limited. Therefore, in order to increase the upper limit rotational speed, to weaken the magnetic flux from the magnet, the coil or to reduce the magnetic flux interlinking with the prior art such as the following has been known.
In general, is referred to as the field weakening control, magnetic flux generated by the magnet is opposed to the magnetic flux generated from the coil, the coil magnetic flux of the magnet is not interlinked with the control. According to the field weakening control, magnetic flux of the magnet is weakened in order to appear as, a low voltage and the induction machine, the rotational speed is increased.
The structure is referred to as variable field structure, the force holding the magnetic flux from the magnet (coercive force) of different types disposed the rotor magnet 2, the coercive force of the weak magnetic flux of the magnet from the outside in the direction of current in the reverse direction to the coercive force in a strong magnet structure. By such a structure, a weak magnet and reverses the polarity of the coercive force, a strong coercive force of the magnetic flux from the magnet enters the weak magnet coercive force, magnetic flux interlinking with the coil is reduced.
Patent Document 1, Patent Document 2 is, the stator coil winding 2 and is separated into two, the rotation speed is used when one of the 2 are connected in series, the faster the rotational speed is divided into two coils 2 is used only in half, the magnetic flux interlinked with the coil can be reduced to half.
Is Patent Document 3, the stator coil winding 2 and is separated into two, when the rotational speed becomes higher, and, at the time of low torque, and winding are connected in parallel, rotation speed is slow, and, when the high torque, can be connected in series and the windings, magnetic flux interlinking with the coil is reduced to half the disclosed technology.
Is Patent Document 4, the rotation of the rotor magnets that are arranged to enable, when the rotation speed is, the direction of the coil facing the magnet is arranged, when the rotation speed is high, placing a magnet in a direction parallel with the disclosed technology. Arranged in an orientation parallel to the coil magnets, viewed from the area of the magnet due to the small, magnetic flux that interlinks with the coil can be reduced.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • Shibaura Institute of Technology
  • 発明者(英語)
  • AKATSU Kan
  • HIJIKATA Daiki
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PE PG PH PL PT QA RO RS RU RW SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ MD RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

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