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Squirrel-cage type motor stator

A motor stator and squirrel-cage technology, applied to asynchronous induction motors, electrical components, electromechanical devices, etc., can solve the problem of no protection measures for leakage current

Inactive Publication Date: 2012-07-04
SHANGHAI KAKU ELECTRIC EQUIP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no corresponding protection measure for the leakage current generated between the coil exposed on the axial end face of the stator core and the stator core

Method used

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  • Squirrel-cage type motor stator
  • Squirrel-cage type motor stator
  • Squirrel-cage type motor stator

Examples

Experimental program
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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0014] Such as Figure 1-3 As shown, the squirrel-cage motor stator of the present invention includes a stator core 10 with a plurality of slots 11, and the axial end faces of the stator core 10 are all provided with insulating frames 20 made of insulating materials. The frame 20 is provided with a through hole 21 matched with the slot 11 of the stator core 10 .

[0015] A round edge 22 is provided on the outer circumference of the insulating frame 20 . The round edge 22 can cover the coil on the axial end surface of the insulating frame 20 to prevent the coil from being damaged after being collided.

[0016] A plurality of binding holes 23 are evenly distributed on the round edge 22 . The function of the wire binding hole 23 is to facilitate the binding of the multi-turn coils protruding from the through hole 21 of the insulating frame. Multi-turn coils can be bo...

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PUM

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Abstract

The invention discloses a squirrel-cage type motor stator, which comprises a stator iron core (10) with a plurality of wire casings (11), wherein the axial end faces of the stator iron core (10) are provided with insulating frames (20) made of an insulating material; and the insulating frames (20) are provided with through holes (21) matched with the wire casings of the stator iron core (10). Due to the adoption of the squirrel-cage type motor stator, the conveying of drain current between a coil exposed out of the axial end faces of the stator iron core (10) and the stator iron core (10) can be reduced.

Description

technical field [0001] The invention relates to a squirrel cage motor, in particular to a squirrel cage motor stator. Background technique [0002] A squirrel-cage motor, including a stator and a rotor. The stator includes a stator core with a plurality of slots. The stator core is made of silicon steel sheets, and the slots are wound with multiple turns of enameled wire coils made of metallic copper. After the motor is energized, when the insulating varnish of the coil falls off, or the insulating varnish on the surface of the stator core falls off, the coil and the slot in the stator core will generate leakage current, and the coil and the stator core in the slot will generate current transmission, thereby affecting the performance of the motor. In order to prevent the leakage current from passing between the stator core and the leakage current, the coil is generally installed in the slot of the stator core through insulating paper to reduce the leakage current between t...

Claims

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Application Information

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IPC IPC(8): H02K17/16H02K1/12H02K3/34
Inventor 郭建议
Owner SHANGHAI KAKU ELECTRIC EQUIP CORP
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