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Electric rotating machine

A technology of rotating motors and rotating axes, which is applied in electromechanical devices, electrical components, wind power generation, etc., and can solve problems such as increased cogging torque, increased vibration, and noise

Active Publication Date: 2016-02-10
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This vibration not only reduces the strength of the motor, but also generates noise
Further, as the torque increases, the cogging torque that causes torsional vibrations also roughly increases, and this presumably further increases the generation of vibrations

Method used

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Examples

Experimental program
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Effect test

no. 1 example

[0046] figure 1 The rotating electric machine 100 according to the first embodiment is schematically shown. Such as figure 1As shown, the rotating electrical machine 100 includes a rotor 101 supported by a bearing (not shown) so as to be rotatable around a rotation axis z, and a stator 102 opposed to the outer peripheral surface of the rotor 101 with a predetermined gap between them. gap. The rotor 101 has an approximately cylindrical shape surrounding the axis of rotation z. The stator 102 has an approximately cylindrical shape coaxial with the rotation axis z, and is arranged to cover the rotor 101 around the rotation axis z. The rotor 101 is positioned inside the stator 102 .

[0047] figure 2 The rotary electric machine 100 is schematically shown in a state disassembled into a rotor 101 and a stator 102 with the stator 102 partially cut away. Such as figure 2 As shown, the rotating electric machine 100 is a three-stage (three-phase) type rotating electric machine ...

no. 2 example

[0067] In the second embodiment, explanation of the same components as those of the first embodiment will be omitted as necessary, and the explanation will focus on those components that are different from the first embodiment.

[0068] Figure 6 A rotating electrical machine 200 according to the second embodiment is schematically shown. Such as Figure 6 As shown, the rotary electric machine 200 includes a rotor 101 supported by a bearing (not shown) so as to be rotatable about a rotation axis z, and a stator 202 disposed opposite to an outer peripheral surface of the rotor 101 with a predetermined gap therebetween. The stator 202 has an approximately cylindrical shape coaxial with the axis of rotation z. The rotor 101 is positioned inside the stator 202 .

[0069] Figure 7 The rotating electrical machine 200 is schematically shown in a state of being disassembled into a rotor 101 and a stator 202 . Such as Figure 7 As shown, the rotating electrical machine 200 is a t...

no. 3 example

[0079] In the third embodiment, explanation of the same components as those of the first embodiment will be omitted as necessary, and the explanation will focus on those components that are different from the first embodiment.

[0080] Figure 11 A rotating electrical machine 300 according to the third embodiment is schematically shown. Such as Figure 11 As shown, the rotary electric machine 300 includes a rotor 101 supported by a bearing (not shown) so as to be rotatable about a rotation axis z, and a stator 302 disposed opposite to an outer peripheral surface of the rotor 101 with a predetermined gap therebetween. The stator 302 has an approximately cylindrical shape and is arranged coaxially with the axis of rotation z. The rotor 101 is positioned inside the stator 302 .

[0081] Figure 12 The rotary electric machine 300 is schematically shown in a state of being disassembled into a rotor 101 and a stator 302 . Such as Figure 12 As shown, the rotating electrical ma...

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PUM

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Abstract

According to an embodiment, an electric rotating machine includes a rotor element, an annular coil, a plurality of stator cores, and a plurality of wedge members. The rotor element is rotatable around a rotation axis. The coil is provided to be coaxial with the rotation axis. The plurality of stator cores are provided opposite to the rotor element and each includes a pair of magnetic pole parts opposing each other with the coil being interposed therebetween. Each of the plurality of wedge members is arranged between adjacent stator cores to apply preloads to the adjacent stator cores, the preloads containing components in a rotation direction of the rotor element and being opposite to each other.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the benefit of priority from Japanese Patent Application No. 2014-113031 filed May 30, 2014, the entire contents of which are hereby incorporated by reference. technical field [0003] Embodiments described herein relate generally to a transverse flux rotating electric machine that creates a magnetic circuit along its axis of rotation, and electric vehicles, wind turbine generators, and hoisting devices using the same. Background technique [0004] For reasons such as energy saving and CO 2 For reasons of emission reduction, there is a need to further improve the performance of electromagnetic motors, and the performances represented in terms of size reduction, weight reduction, high efficiency, high torque, and high output are rapidly being perfected. When divided according to the direction of magnetic flux, electromagnetic motors can be divided into: (1) radial flux motors, (2...

Claims

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Application Information

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IPC IPC(8): H02K1/12H02K5/24
CPCH02K1/145H02K1/185Y02E10/72
Inventor 高桥博小久保高弘上田靖人
Owner KK TOSHIBA
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