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Stator core support device and rotating electrical machine

A technology of stator iron core and support device, which is applied in the direction of electromechanical device, casing/cover/support, electrical components, etc., can solve the problem of reduced efficiency of rotating electrical machines, reduced tightening force of fastening parts, and increased vibration of stator iron core 20, etc. problems, and achieve the effects of suppressing eddy current loss and temperature rise, suppressing the generation of vibration, and suppressing the reduction of operating efficiency

Active Publication Date: 2022-01-14
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such eddy current losses reduce the efficiency of rotating electrical machines
In addition, when such eddy currents are generated, the temperature of the support devices 300, 300' rises, and the fastening parts are tightened due to thermal elongation of members constituting the support devices 300, 300'. The force decreases and the vibration of the stator core 20 increases
At this time, if the thickness of the stator core is reduced, the leakage of magnetic flux may become significantly larger.

Method used

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  • Stator core support device and rotating electrical machine
  • Stator core support device and rotating electrical machine
  • Stator core support device and rotating electrical machine

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Experimental program
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Embodiment Construction

[0033] Hereinafter, each embodiment will be described in detail with reference to the drawings. For the components in each embodiment described below and Figure 8 to Figure 12 The same components of the rotating electric machines shown are sometimes given the same symbols and the description of the common parts is omitted.

[0034] (first embodiment) figure 1 It is a schematic cross-sectional view showing the rotary electric machine 1 according to the first embodiment cut along the axial direction. figure 1 The illustrated rotating electrical machine 1 is a rotating field rotating electrical machine, and includes a stator 10 and a rotor 40 , and the rotor 40 rotates about a rotation center axis C1 on the radially inner side of the stator 10 . A field coil (not shown) is provided on the rotor 40 . In this embodiment, when referring to the axial direction, it means that the direction is along the rotation center axis C1, and when referring to the radial direction, it means...

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Abstract

A stator core support device and a rotating electrical machine. The stator core support device according to the embodiment includes a plurality of support members for supporting a stator core on a stator frame arranged radially outward. These support members are combined to form a closed loop. Furthermore, an insulating portion for electrically insulating a part of the closed-loop portion is provided.

Description

technical field [0001] Embodiments of the present invention relate to a stator core support device and a rotating electric machine. Background technique [0002] A rotating electric machine such as a generator or an electric motor includes: a rotor having a rotating shaft; and a stator. Rotating electrical machines are broadly classified into inner rotor type and outer rotor type, wherein, in the inner rotor type rotating electrical machine, the stator has: a cylindrical stator core formed to surround the rotor; The stator core is supported by the base. In such a rotating electric machine, the stator vibrates due to the magnetic attraction force generated by the rotation of the rotor, but it is not desirable that the vibration be transmitted from the rotating electric machine to the base. Therefore, in the stator of such a rotating electric machine, a stator core support device configured to include elastic bodies such as spring plates or spring bars may be arranged betwee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/00
CPCH02K5/00H02K1/185H02K5/24
Inventor 高桥则雄藤田真史佐藤孝洋中村英之长仓谦十川和真
Owner KK TOSHIBA