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Inductor type rotary motor

A technology of rotating electrical machines and rotors, applied in the field of induction rotating electrical machines, which can solve the problems of small torque per unit size, small amount of permanent magnets used, and limited application range, so as to increase torque, reduce the amount of permanent magnets used, and expand the application range effect

Inactive Publication Date: 2014-09-10
SANYO DENKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the induction-type rotating electrical machine disclosed in Patent Document 1 has the advantage of using less permanent magnets than the permanent magnet-type electrical machine, but has the disadvantage of having a small torque per unit size and limited application range.

Method used

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  • Inductor type rotary motor
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Embodiment approach 1

[0054]

[0055] figure 1 It is a block diagram of the induction-type rotating electric machine of Embodiment 1. As shown in the figure, the induction rotating electric machine 100 of this embodiment has a stator 120 and a rotor 140 .

[0056] Stator 120 has cylindrical yoke 122 , U-phase teeth 124U, V-phase teeth 124V, and W-phase teeth 124W. The U-phase teeth 124U, the V-phase teeth 124V, and the W-phase teeth 124W are respectively circumferentially arranged on the inner peripheral side of the yoke 122 at equiangular central angles of 120°. The induction-type rotating electric machine 100 of Embodiment 1 is a three-phase induction-type rotating electric machine.

[0057] Respectively, permanent magnets 126U are arranged on the U-phase teeth 124U, permanent magnets 126V are arranged on the V-phase teeth 124V, and permanent magnets 126W are arranged on the W-phase teeth 124W. In the induction rotating electrical machine 100 according to Embodiment 1, one permanent magnet i...

Embodiment approach 2

[0070]

[0071] image 3 It is a block diagram of the induction type rotating electric machine of Embodiment 2. As shown in the figure, the induction rotating electric machine 200 of this embodiment has a stator 220 and a rotor 240 .

[0072] The stator 220 has a cylindrical yoke 222 , U-phase teeth 224U- 1 , 224U- 2 , V-phase teeth 224V- 1 , 224V- 2 , and W-phase teeth 224W- 1 , 224W- 2 . U-phase teeth 224U-1, 224U-2, V-phase teeth 224V-1, 224V-2, and W-phase teeth 224W-1, 224W-2 are arranged on the inner peripheral side of the yoke 222 at equiangular central angles of 60°. . The induction-type rotating electrical machine 200 of Embodiment 2 is a 6-tooth three-phase induction-type rotating electrical machine.

[0073] Permanent magnet 226U- 1 is arranged on U-phase tooth 224U- 1 , permanent magnet 226V- 1 is arranged on V-phase tooth 224V- 1 , and permanent magnet 226W- 1 is arranged on W-phase tooth 224W- 1 , respectively. Also, permanent magnet 226U- 2 is arranged on ...

Embodiment approach 3

[0092]

[0093] Figure 8 It is a block diagram of the induction type rotating electric machine of Embodiment 3. As shown in the figure, the induction rotating electrical machine 300 of this embodiment has a stator 320 and a rotor 340 .

[0094] The stator 320 has a cylindrical yoke 322 , U-phase teeth 324U- 1 , 324U- 2 , V-phase teeth 324V- 1 , 324V- 2 , and W-phase teeth 324W- 1 , 324W- 2 . U-phase teeth 324U-1, 324U-2, V-phase teeth 324V-1, 324V-2, W-phase teeth 324W-1, 324W-2 are respectively arranged on the inner periphery of the yoke 322 at equiangular central angles of 60° side. The induction-type rotating electrical machine 300 of the third embodiment is the same as the induction-type rotating electrical machine 200 of the second embodiment, and is a six-tooth three-phase induction-type rotating electrical machine.

[0095] Respectively, two permanent magnets 326U-1A and 326U-1B are arranged on the U-phase tooth 324U-1, two permanent magnets 326V-1A and 326V-1B ar...

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Abstract

The invention provides an inductor type rotary motor, and aims to increase the torque per unit size, expand the application range of the motor and further decrease the usage amount of permanent magnets under the same size. The inductor type rotary motor (100) of m-phase (m represents an integer of 2 or more) includes a stator (120) in which distal ends of teeth (124U, 124V, 124W) are circularly disposed, and a rotor (140) having an inductor tooth (142) that faces each of the distal ends of the teeth through a constant gap. The stator includes km teeth (k represents an integer of 1 or more), at least one permanent magnet (126U, 126V, 126W) is disposed at each of the teeth, and adjacent permanent magnets, which belong to teeth adjacent to each other, are disposed in such a manner that different polarities face each other.

Description

technical field [0001] The present invention relates to an induction-type rotating electrical machine that can be used in various devices such as FA equipment, OA equipment, and in-vehicle equipment. Background technique [0002] Among the induction-type rotating electrical machines, there is an embedded-magnet-type induction motor disclosed in Patent Document 1 below, in which a thin-plate-shaped permanent magnet is inserted into a housing portion of a magnetic yoke to magnetize a coil in the direction of rotation. In the embedded magnet type induction motor, the magnetic flux flows to the magnetic gap through the magnetic yoke, so the magnetic flux density in the magnetic gap can be increased, and the torque and efficiency are high. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Specification of Patent No. 4207386 [0006] The problem to be solved by the invention [0007] However, the induction-type rotating electrical machine disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/38
CPCH02K21/44H02K1/12H02K1/148H02K1/17H02K1/24H02K16/02
Inventor 杉田聪唐玉琪三泽康司宫入茂德
Owner SANYO DENKI CO LTD
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