Electric motor

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

Active Publication Date: 2013-07-03
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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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] like figure 1 As ...

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Abstract

The invention provides an electric motor, which can provide a less irregularity of winding and a high space factor when lead wire is wound around a plurality of teeth via an insulator to make a stator. The electric motor is provided with a rotator and a stator disposed on an outer diameter side of the rotator. The stator includes a cylindrical stator iron core provided with a plurality of teeth radially projecting from an inner circumferential side of an annular yoke toward a center, insulators made of an insulation material disposed on both ends of the stator iron core in an axial direction, and lead wire wound around the teeth via the insulators. First grooves disposed on an inner circumferential side of the insulator and second grooves disposed on an inner circumferential side of the stator iron core are formed to communicate with each other. A part of a connection line connecting the windings with each other is embedded in the first grooves and the second grooves.

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 Applications(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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