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Lamination of permanent magnet motor stator core

A stator core and permanent magnet motor technology, applied in magnetic circuits, electrical components, electromechanical devices, etc., can solve the problems of potential safety hazards and the same cut size, and achieve the effect of improving safety and service life

Pending Publication Date: 2020-06-19
大连智鼎科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing annular laminations have the same incision size and are prone to safety hazards, the present invention provides a lamination for the stator core of a permanent magnet motor

Method used

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  • Lamination of permanent magnet motor stator core
  • Lamination of permanent magnet motor stator core
  • Lamination of permanent magnet motor stator core

Examples

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Embodiment Construction

[0022] The stator iron core of the permanent magnet motor of the present embodiment is formed by stacking a plurality of annular laminations, and the annular laminations are an annular structure (such as figure 1 As shown, the shaded part is a stator segment), the stator segment is provided with a stator slot 5 with a slot depth of H1, and both sides of the stator slot 5 are provided with triangular cutouts for placing slot wedges to prevent the conductors in the stator slot 5 from protruding .

[0023] When in use, the annular laminations are placed vertically, and the cutouts on the annular laminations include cutouts A1, B2, C3 at the notch of the stator slot 5, and cutout D4 in the middle of the stator slot 5.

[0024] The radial dimension L of the notch at the notch is as follows: the radial dimension of the notch A1 is larger than the notch C3, the radial dimension of the notch C3 is larger than the notch B2, and the midpoint of the circumferential length of the notch of...

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Abstract

The invention provides a lamination of a permanent magnet motor stator core, which belongs to the field of motors. The lamination comprises a plurality of stator slots with notches; the notches comprise a notch A and a notch B; and the radial size of the notch A is larger than that of the notch B. According to the invention, the notches with at least two sizes are used for mounting slot wedges with corresponding sizes, and the larger notch A can bear greater stress, so that the safety is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of motors, in particular to a lamination of stator cores of permanent magnet motors. Background technique [0002] The stator core of a large permanent magnet motor is composed of multiple annular laminations. The stator slots on the annular laminations are usually rectangular slots, and a cutout of the same size is set on the side wall of the stator tooth at the notch of the stator slot. The cutout is used for Slot wedges are used to prevent the conductors in the stator slots from coming out, but when the motor is in use, because the conductors in different stator slots are located in different positions in the circumferential direction, they receive different forces, so some of them are more stressed. Large incisions are prone to safety hazards. Contents of the invention [0003] In order to solve the problem that the existing annular laminations have the same cutout size and are prone to potential safety hazards...

Claims

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Application Information

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IPC IPC(8): H02K1/16H02K3/12
CPCH02K1/165H02K3/12H02K2213/03
Inventor 张兆宇刘东旭
Owner 大连智鼎科技有限公司
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