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Procedure for preparing windings for electric motor

A technology of motor winding and winding method, applied in the field of motor winding preparation, can solve the problems of difficulty in maintaining the shape of the winding, laborious winding work and the like

Inactive Publication Date: 2008-05-07
KONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the slot is semi-closed, only one or very few wires can be put into the very narrow opening of the slot at a time when loading the winding
So the winding work is very laborious
Therefore, it is difficult to maintain the shape of the winding, and the coil needs to be reshaped after the winding work is completed

Method used

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  • Procedure for preparing windings for electric motor
  • Procedure for preparing windings for electric motor
  • Procedure for preparing windings for electric motor

Examples

Experimental program
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Embodiment Construction

[0022] When manufacturing motor windings, the winding wires are wound on a winding machine (not shown) to have such figure 1 A winding coil 2 of the shape shown, wherein the coil has a straight coil edge 4, which is to be inserted into the slot of the motor. The cross-section of the winding coil is preferably rectangular at least in the coil side area (such as Figure 2a ). The coil mold comprises two U-shaped wire frames 12 and 14, and the width of the frame is the same as the width of the motor slot. The coil can be wound either way, the mold shape forms the part where the coil is put into the slot, ie the correct shape of the coil side. During the winding process, the spacing of the mold wire frame is preferably determined by the slot spacing of the motor. In the axial motor, the mold wire frame is also relatively inclined, and the inclination angle is the same as the motor slot used to place the coil side. Therefore, the first end 6 of the winding coil, which forms the...

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Abstract

The invention relates to a procedure for preparing the windings for an electric motor. The magnetic core (20) of the stator and / or rotor of the motor is provided with slots (24,25) in which winding coils (2; 5,7;15,17) can be fitted. According to the invention, the winding coils (2) are wound from winding wire and shaped substantially into their final form, the cross-section of the coil sides (15,17) corresponding to the space reserved in the slot (24,25) for the coil. The winding coils (15,17) are fitted in place in the slots (24,25) provided in the magnetic core.

Description

technical field [0001] The invention relates to a method for preparing a motor winding. The stator and / or the magnetic core of the rotor of the motor are provided with slots, and the winding coils are arranged in the slots. Background technique [0002] In electric machines, the windings are mounted directly on the stator and / or rotor, or on ferromagnetic parts of the stator and / or rotor. In the latter case, the windings are assembled in slots on a magnetic laminated core, or on separate pole pieces protruding from the stator / rotor frame. The invention relates to the preparation of windings for electrical machines mounted in slots. More specifically, the present invention relates to electric motors having open slots. [0003] In the stator of small AC motors, a semi-closed slot is used, where the tooth rim widens at the opening of the slot and partially covers the slot, preventing movement of the windings. The tooth edge design can also be used to modify certain character...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/04H02K3/493H02K15/06
CPCH02K15/066H02K3/493Y10T29/49066Y10T29/49071Y10T29/49009
Inventor 埃斯科·奥兰科帕努·库罗尼恩马科·图兰德
Owner KONE CORP