Method for completely potting motor rotor provided with rotor winding

A technology for motor rotors and rotor windings, used in the manufacture of motor generators, electromechanical devices, electrical components, etc.

Active Publication Date: 2020-06-23
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to carry out the method, the associated rotor must forcibly be formed with magnet pockets

Method used

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  • Method for completely potting motor rotor provided with rotor winding
  • Method for completely potting motor rotor provided with rotor winding
  • Method for completely potting motor rotor provided with rotor winding

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 The rotor 100 shown has a rotor shaft 110 designed as a hollow shaft and a rotor body 120 with a rotor winding 130 . The rotor winding 130 includes a plurality of winding sections arranged around the rotor shaft 110 . For the above reasons, the rotor 100 is provided with a complete potting such that the voids present in the rotor body 120 are filled with a potting compound, for example a thermosetting resin.

[0032] For potting, the rotor 100 is arranged in a mold 300 together with a plurality of displacement bodies 200, as figure 2 shown. Such as figure 1 As shown, the displacement bodies 200 are arranged in the rotor body 120 in a star-shaped fashion around the rotor shaft 110 . The mold 300 has an outer peripheral surface 310 and a bottom (mold bottom) 320 . The rotor 100 and the elongated displacement body 200 are oriented upright, ie axially vertically, in the casting mold 300 , wherein the displacement body 200 extends over the entire axial length ...

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PUM

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Abstract

The invention relates to a method for completely potting a motor rotor (100) provided with a rotor winding (130), which has the following steps: providing a prefabricated rotor (100); providing at least one displacement body (200), the at least one displacement body has at least one penetrating channel (210); arranging the rotor (100) and the displacement body (200) are upright in the casting mold(300); filling the casting mold (300) with potting material, wherein the potting material passes through the channel (210) of the displacement body (200) and is introduced into the lower area (330) of the mold (300) and rises in the mold (300). The present invention also relates to an alternative method in which the shell is used instead of the mold (300).

Description

technical field [0001] The invention relates to a method for completely potting an electrical machine rotor formed with rotor windings. Background technique [0002] A rotating electric machine, such as a synchronous machine, has a fixed stator (also called a stator) and a rotor (also called a rotor) that runs in the stator. Depending on the construction principle, the rotor is provided with permanent magnets or with a rotor winding. The so-called full potting of the rotor, in which the potting compound is filled both within the rotor winding and in the interstices existing between the rotor winding and the rotor shaft or rotor frame, optimizes heat dissipation and mechanics with regard to dynamic and static loads stability. [0003] Document DE 10 2008 027 758 B4 describes a method for potting a rotor 1 formed with magnet pockets 2 . For easier potting, at least one end plate 6 with integrated distribution channels 7 is used. The potting compound is distributed in the i...

Claims

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Application Information

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IPC IPC(8): H02K15/12H02K1/22
CPCH02K15/12H02K1/22H02K1/24
InventorA·沙尔拉赫
OwnerAUDI AG