Rotor for an electric machine and electric machine

DE102025135791B3Undetermined Publication Date: 2026-10-22DR ING H C F PORSCHE AG
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Patent Information

Application Number
DE102025135791
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-10-22
Estimated Expiration
2045-09-05

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Abstract

The invention relates to a rotor (1) for an electric machine (2), comprising: a rotor core (10) formed by a rotor lamination stack with a plurality of stacked rotor laminations made of a ferromagnetic material; and a plurality of rotor windings (11a-11f) arranged distributed circumferentially around the rotor core (10) and made of an electrically insulated wire, in particular a copper enamelled wire; the rotor (1) having a cooling channel arrangement (5) with a number of cooling channel sections (50a-50f), each comprising a plurality of tubular cooling channels (51) made of an electrically insulating plastic, wherein the tubular cooling channels (51) are designed to form secondary insulation for the rotor windings (11a-11f) and are supplied with a coolant, in particular a cooling oil, during operation to cool the rotor windings (11a-11f).
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Citation Information

Patent Citations

  • Polschuh

    DE102011006681A1

  • Electric machine, in particular for a vehicle

    DE102017208550A1

  • Component for a rotor of an electric machine with slot insulation element and heat sink

    DE102022109033A1

  • Rotor with fluid guidance system for cooling fluid

    DE102023207986A1

  • Device for conveying the cooling medium in salient-pole machines

    EP0415057A1