Split core unit, rotary electric machine, method for manufacturing split core unit, and method for manufacturing rotary electric machine

A manufacturing method and core technology, applied in the manufacture of stator/rotor bodies, motor generators, electromechanical devices, etc., can solve problems such as inability to arrange magnetic wires, shifting positional relationship of split iron cores, and deterioration of coil arrangement. Achieve the effect of easy production change

Inactive Publication Date: 2019-08-23
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the case of winding the magnetic wire to the split core described in Patent Document 1, the magnetic wire is wound in a state where an insulator composed of a plurality of divided parts is assembled to the split core. The tension of the coil, the components constituting the insulator and the split core deviate from the specified positional relationship, and the magnetic wire cannot be arranged at the specified position of the split core, which may deteriorate the alignment of the coil and reduce the performance of the rotating electrical machine

Method used

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  • Split core unit, rotary electric machine, method for manufacturing split core unit, and method for manufacturing rotary electric machine
  • Split core unit, rotary electric machine, method for manufacturing split core unit, and method for manufacturing rotary electric machine
  • Split core unit, rotary electric machine, method for manufacturing split core unit, and method for manufacturing rotary electric machine

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Embodiment approach 1

[0056]Next, the split iron core unit, the rotating electric machine, the manufacturing method of the split iron core unit, and the manufacturing method of the rotating electric machine according to Embodiment 1 of the present invention will be described with reference to the drawings.

[0057] In this specification, when referring to "axial direction", "circumferential direction", "radial direction", "inner peripheral side", "outer peripheral side", "inner peripheral surface" and "outer peripheral surface" unless otherwise specified, It is assumed that the stator combined with split core units refers to the "axial direction", "circumferential direction", "radial direction", "inner peripheral side", "outer peripheral side", "inner peripheral surface", " peripheral surface". In addition, in this specification, when referring to "upper" and "lower" unless otherwise specified, a plane perpendicular to the axial direction is assumed as a place of reference, and an area including th...

Embodiment approach 2

[0106] Next, the split iron core unit, the rotating electric machine, the manufacturing method of the split iron core unit, and the manufacturing method of the rotating electric machine according to Embodiment 2 of the present invention will be described with reference to the drawings.

[0107] Figure 11 It is a front view showing the winding method when using the connecting core.

[0108] In Embodiment 1, the magnetic wire W is wound on the split core unit intermediate body 30A having the split cores 31 scattered at random, but in this embodiment, the circumferential ends of the plurality of split cores 231 are Winding is performed by connecting a sheet or an insulating member that can be connected.

[0109] By connecting the plurality of split cores 231 , it is possible to manufacture the stator 3 with a split core unit in an annular shape with good workability. In addition, the circumferential end portions of the core pieces constituting the split core 231 are connected ...

Embodiment approach 3

[0115] Next, the split core unit, the rotating electrical machine, the manufacturing method of the split iron core unit, and the manufacturing method of the rotating electrical machine according to Embodiment 3 of the present invention will be described with reference to the drawings.

[0116] Figure 12A It is a front view of split core unit intermediate body 330A.

[0117] Figure 12B It is a figure which shows the fixed state of the holder 379 and two 1st groove|channel 304k and 2nd groove|channel 331k.

[0118] A first groove 304k extending in the axial direction and having a T-shaped cross section perpendicular to the axial direction is formed in the circumferential center portion of the outer peripheral surface of the yoke covering portion 304y. A second groove 331k extending in the axial direction across the entire length of the split core 331 and having a T-shaped cross section perpendicular to the axial direction is formed in the circumferential center portion of th...

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Abstract

The split core unit (30) has a split core (31), a coil (5), and an insulation member for insulating the split core (31) and the coil (5). The insulation member has end face insulation members (4). Each of the end face insulation members (4) has a first groove (4k) provided in a central region in the peripheral direction of an outer peripheral surface and extending in a straight line in an axial direction. A yoke part (31y) of the split core (31) has a second groove (31k) provided in a central region in the peripheral direction of an outer peripheral surface and extending in a straight line inan axial direction across the entire length of the split core (31). The first groove (4k) of each of the two end face insulation members (4) and the second groove (31k) of the split core (31) communicate with each other. The two first grooves (4k) appear overlapped with the second groove (31k) when viewed in the axial direction.

Description

technical field [0001] The present invention relates to a split core unit, a rotating electric machine, a method for manufacturing the split iron core unit, and a method for manufacturing the rotating electric machine. Background technique [0002] Conventionally, there has been proposed a technique of combining a plurality of split iron cores divided in the circumferential direction to form an iron core of a rotating electric machine. Each of the split iron cores is composed of a yoke portion and a tooth portion, and is formed by laminating steel plates formed in a substantially T-shape. In addition, in order to wind the magnet wire while ensuring the insulation properties of the laminated steel sheets and the coil, an insulator (insulation member) made of, for example, synthetic resin is placed around the portion where the split iron core is wound. [0003] When the insulator is formed as another member and integrated with the split core, the insulator is divided into thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/18H02K3/34H02K15/02
CPCH02K3/325H02K15/10H02K1/148H02K15/022
Inventor 筱原正季司城大辅北野达也神田宪人
Owner MITSUBISHI ELECTRIC CORP
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