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Method for producing a short circuit rotor and short circuit rotor

A short-circuit, rotor technology, used in the manufacture of squirrel-cage rotors, tools, motor generators, etc., can solve problems such as low strength and electrical conductivity, and achieve the effect of reducing heat input and increasing spacing

Active Publication Date: 2018-11-02
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage is that the soldered connection of the shorting ring to the connection ring is less strong and less conductive than a welded connection

Method used

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  • Method for producing a short circuit rotor and short circuit rotor
  • Method for producing a short circuit rotor and short circuit rotor
  • Method for producing a short circuit rotor and short circuit rotor

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 The main components of one side of the short-circuit rotor 1 according to the invention are shown in an exploded view, the axially opposite side (not shown) of the short-circuit rotor 1 being formed mirror-symmetrically here. Before joining the components of the short-circuit rotor shown here, the short-circuit rotor 1 has a rotor core 2 as is basically known from the prior art. The rotor core 2 has through-openings, into which the short-circuit bars 3 of the squirrel-cage of the short-circuited rotor 1 have been inserted. The shorting bar 3 protrudes significantly axially on both sides in order to be able to engage in a form-fitting manner in the through-opening or recess 4 of the main ring 5 . The axial end of the short-circuiting rotor 1 is formed by the outer ring 6 , which has no recesses or holes for the short-circuiting bars 3 , whereby the short-circuiting bars are to rest materially on the outer ring. The main ring sheet 5 and the outer edge ring she...

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PUM

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Abstract

A method for producing a short circuit rotor (1), by providing a laminated rotor core (2) with through openings for shorting bars (3) of a squirrel cage as well as providing the shorting bars (3); inserting of the shorting bars (3) into the through openings (4) such that an axial overhang remains on both sides; placing a main disk (5) with through openings on both sides for the shorting bars, whose axial length corresponds to the overhang, as well as an edge disk immediately adjacent to the main disk (5) and the ends of the shorting bars. The main disk and the edge disk form a shorting ring ofthe squirrel cage, and the main disk (5) and the edge disk (6) are welded by radially encircling electron beam welding.

Description

technical field [0001] The invention relates to a method for producing a short-circuit rotor / squirrel-cage rotor and a short-circuit rotor, in particular for an asynchronous machine. Background technique [0002] Various constructions for squirrel cages in short-circuited rotors of asynchronous machines made of copper and / or aluminum semi-finished products are already known in the prior art. [0003] Document DE 10 2013 005 050 A1 discloses a short-circuited rotor and a method for producing a short-circuited rotor, in which at least a part of the short-circuiting rings consists of a ring group consisting of rings with gaps in layers In this configuration, the ends of the squirrel-cage shorting bars extend from the rotor laminations through the gap. On the outer circumference, the end faces of the rings of the short-circuit ring have at least one bevel which extends radially at least as far as the short-circuit bar end of the squirrel-cage short-circuit bar protruding from t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/08H02K17/16
CPCH02K17/165H02K15/0012H02K15/08H02K17/20B23K26/21H02K3/02H02K17/16
Inventor K·韦伯J·吕克
Owner AUDI AG
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