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electric motor

A motor and stator technology, which is applied in the field of motors, can solve problems such as poor high-voltage insulation, and achieve the effect of increasing the area ratio

Active Publication Date: 2018-01-02
FUJITSU GENERAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the armature winding has poor insulation against high voltage due to the contact between the winding start part and the winding end part, so it is necessary to apply insulation treatment, such as adding insulating paper to the contact part, or using a sleeve Tube encases windings etc.

Method used

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  • electric motor
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Embodiment ）

[0051] figure 1 is an exploded perspective view of the motor stator of the present invention, figure 2 yes figure 1 An enlarged perspective view of the insulator, image 3 yes figure 1 The enlarged perspective view of the insulating film, Figure 4 yes image 3 A top view of the insulating film, Figure 5 will be figure 1 The top view of the stator assembled by the insulator and the stator core, Image 6 is used to illustrate the use of winding machine to Figure 5 Partial enlarged view of the state where the coil is wound on the teeth of the stator, Figure 7 It is a wiring diagram when the stator of the motor of the present invention is a lapped coil, Figure 8 so Figure 7 The connection method of lap wound coils to figure 1 The expanded view of the state where the stator is wound with wires, Figure 9 It means to use the winding machine to Figure 5 A diagram showing a state in which coils are wound on all the teeth of the stator.

[0052] Such as figure 1 ...

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Abstract

The present invention provides a motor in which, when a stator is formed by winding a lead wire to a tooth portion through an insulator, the winding irregularity of the coil is small and the occupation rate is high. The motor includes a rotor and a stator arranged on the outer diameter side of the rotor, the stator includes a cylindrical stator core, and has a plurality of teeth protruding radially from the inner peripheral side of the annular yoke frame toward the center; An insulator made of an insulating material at both ends in the axial direction of the stator core; and a lead wire wound on the teeth through the insulator; wherein, a first groove is formed on the inner peripheral side of the insulator, and a first groove is formed on the inner peripheral side of the stator core. A second groove is formed on the side, and the first groove and the second groove are disposed so as to communicate in the axial direction, and a part of a connecting wire connecting the coils is buried in the communicating first groove and the second groove.

Description

technical field [0001] The present invention relates to a motor in which a coil is wound on a tooth portion of a motor stator by overlapping the coil. Background technique [0002] In the past, when winding the wires to the roll part of the insulator of the motor stator, it was required to start winding from the end of the roll part so that the second row of wires could be neatly bundled between the first row of wires through conventional winding. between. In particular, due to the requirement of AFP (Annual Performance Factor) in recent years, in addition to rated conditions, the proportion of performance improvement in intermediate conditions has also increased. In order to cope with this situation, the coil of the motor must achieve high Productivity. In this way, high coil area ratio can meet the requirements of the above-mentioned AFP by increasing the number of turns, increasing inductance, and reducing harmonic components, so it is necessary to improve the coil stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/12H02K3/50H02K3/28H02K3/34
CPCH02K3/522H02K2203/06H02K3/28H02K3/345
Inventor 妙摩欣弘
Owner FUJITSU GENERAL LTD
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