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Variable field magnet rotating electrical machine

A technology of rotating electrical machines and magnetic fields, applied in synchronous motors with stationary armatures and rotating magnets, rotating parts of magnetic circuits, synchronous machines, etc. The effect of high-efficiency operation

Inactive Publication Date: 2012-09-19
YASKAWA DENKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The above-mentioned variable field rotating electric machine is as follows. Although an encoder is attached to the end of the shaft as a means for detecting the rotational position of the rotor, the relative angle of the two sets of field magnetic pole portions is not directly detected.
Therefore, it is difficult to precisely adjust the relative angle of the two sets of magnetic field pole portions to a target value by hydraulic control

Method used

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  • Variable field magnet rotating electrical machine
  • Variable field magnet rotating electrical machine
  • Variable field magnet rotating electrical machine

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no. 1 Embodiment approach

[0025] First, refer to figure 1 The configuration of the variable field rotating electrical machine according to the first embodiment of the present invention will be described. figure 1 It is an axial cross-sectional view of the variable field rotating electrical machine according to the first embodiment of the present invention used for a vehicle driving motor or generator.

[0026] Such as figure 1 As shown, the variable field rotating electrical machine according to this embodiment has: a stator 10 provided with a stator winding 12 and a stator core 13; a rotor 30 provided with a magnet for a magnetic field; and a rotational position detector 25 of the rotor.

[0027] The stator winding 12 is energized via the lead wire 11 . The stator core 13 is connected to the load-side bracket 16 with stator fastening bolts 14 , and the non-load-side bracket 17 is connected with the frame 15 to the load-side bracket 16 with bolts (not shown).

[0028] The rotor 30 is rotatably held ...

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Abstract

The invention provides a vvariable field magnet rotating electrical machine, which can realize wide highly-efficient operation through correct detection of the relative angle of two groups of field magnetic pole portions. Concretely, the variable field magnet rotating electrical machine includes a stator, a rotor, and a rotary position detector. The stator includes a stator winding coil and a stator iron core. The rotor is provided with a magnet for the magnetic field, a rotary motor of the rotary position detector of the rotor is characterized in that, a signal generating unit for detecting rotary positions is respectively disposed on the two groups of field magnetic pole portions in relative rotation.

Description

technical field [0001] The invention relates to a variable magnetic field rotating electrical machine. Background technique [0002] Among conventional variable-field rotating electrical machines, there is a variable-field rotating electrical machine (see, for example, Patent Document 1) in which the magnetic pole portion of a rotor having a magnet-embedded structure is divided into three in the axial direction, and each is relatively rotated, thereby Change the magnetic field strength of the rotor. [0003] In Patent Document 1 figure 1 In , there is shown the following conventional variable field rotating electrical machine, which has: the two side magnetic pole parts divided into three in the axial direction and fixed on the shaft; A permanent magnet is attached to each magnetic pole portion. [0004] A hydraulic control unit is installed on the bearing of the bracket on the opposite side of the load, and supplies hydraulic pressure to the hydraulic mechanism installed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/08H02K1/27H02K11/00
CPCH02K29/08H02K5/1732H02K21/16H02K21/029
Inventor 野中刚
Owner YASKAWA DENKI KK