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Rotor-rotor shaft-assembly with form-fitting connection

A technology for rotor shafts and threaded connectors, applied in electric components, magnetic circuit rotating parts, manufacturing stator/rotor bodies, etc., can solve problems such as uncomfortable acoustic effects, difficult assembly, and reduced torque transmission

Active Publication Date: 2022-03-11
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to counteract this effect, the superposition must be significantly increased, which however would significantly make assembly difficult or if possible even impossible
For the assembly of the groove-spring connection, it has to be designed with a certain play, which however can lead to reduced torque transmission and thus power loss as well as unpleasant acoustic effects

Method used

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  • Rotor-rotor shaft-assembly with form-fitting connection
  • Rotor-rotor shaft-assembly with form-fitting connection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] figure 1 with 2 An embodiment of a rotor-rotor shaft assembly according to the invention is shown, in particular for an electric machine, for example for a motor vehicle, for example for an electric vehicle and / or for a hybrid vehicle, and likewise describes a Embodiments of the method according to the invention for its manufacture and / or assembly.

[0060] figure 1 with 2 It is shown that the rotor-rotor shaft assembly has a rotor 10 , a rotor shaft 20 and a rotor rim 30 for fastening the rotor 10 on the rotor shaft 20 . Here, more precisely, between the rotor shaft 20 and the rotor rim 30 , the form-fitting connection, in particular the plug-in engagement, takes place via an outer contact, in particular in the form of an outer toothing, on the form-fitting section 22 of the rotor shaft 20 . The profiled part 21 and the inner profiled part 31 , in particular the inner toothing, corresponding to the outer profiled part 21 , in particular the outer toothing, are form...

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PUM

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Abstract

The invention relates to a rotor-rotor shaft-assembly, in particular for an electric machine, with a rotor (10) and with a rotor shaft (20), and to a method for its production and / or assembly. In a simple, cost-effective and / or process-reliable manner, the rotor-rotor shaft-assembly can be manufactured and / or assembled and also ensured reliability at high rotational speeds, for example about 16000 1 / min, by torque transmission, i.e. via the outer profile (21) at the form-fitting section (22) of the rotor shaft (20) and via the corresponding The inner profile (31) to the outer profile (21) can be formed or form a form-fitting connection between the rotor shaft (20) and the rotor rim (30) for fastening the rotor (10) on the rotor shaft ( 20).

Description

technical field [0001] The invention relates to a rotor-rotor shaft assembly according to the invention, in particular for an electric machine, eg for a motor vehicle, eg for an electric vehicle and / or a hybrid vehicle, and to a rotor shaft assembly according to the invention for its Method of manufacture and / or assembly. Background technique [0002] There are different possibilities for torque transmission from, in particular, the rotor of the electric machine to the rotor shaft. For example, the torque transmission can be via a press connection (or interference connection, Pressverband) with a large overlap between the rotor lamination pack and the rotor shaft or via a Multiple, for example four or five, widely distributed groove-spring connections are realized. [0003] A rotor-rotor shaft assembly for an electric machine is known from DE 10 2011 012 429 A1, in which the rotor shaft is constructed in multiple parts from two side covers and a base body arranged between ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/00H02K1/28H02K15/02
CPCH02K1/28H02K7/003H02K15/02H02K1/30H02K7/00
Inventor M.道梅P.P.弗雷泽
Owner VOLKSWAGEN AG