Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets

Due to the increasing demand for electro mobility and specifically for electrified vehicles, the demand for electric drive technology is expanding significantly with changing requirements in terms of the process and the application. The electrical insulation system of the stator is an essential part...

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Main Authors: Uta Rösel, Maximilian Kneidl, Dietmar Drummer, Jörg Franke
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/24/5352
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author Uta Rösel
Maximilian Kneidl
Dietmar Drummer
Jörg Franke
author_facet Uta Rösel
Maximilian Kneidl
Dietmar Drummer
Jörg Franke
author_sort Uta Rösel
collection DOAJ
description Due to the increasing demand for electro mobility and specifically for electrified vehicles, the demand for electric drive technology is expanding significantly with changing requirements in terms of the process and the application. The electrical insulation system of the stator is an essential part of the fabrication process with a high impact on the application properties. Due to limitations—for example, in terms of suitable materials for the stator insulation—a new technology of integrated fabrication by injection molding of thermosets has been founded. In this study, two epoxy (EP) types with different fillers were investigated to prove their suitability in terms of the material properties in the fabrication process and the application. A general realization of the integrated fabrication of insulation systems in electrical engineering by injection molding was proved. Further, the differences regarding the suitability of the two materials are portrayed. It was demonstrated that mainly the filler material influences the fabrication process and the properties in the application, leading to differing suitability in terms of the EP 3162 EMG within the fabrication process and in terms of XW 6640-1 within the application properties of the thermal conductivity and the thermal linear expansion. It was further shown that the filler within the material system is required to increase the thermal conductivity needed for the application. The inclusion of the filler influences the reaction kinetics and the viscosity behavior. A fabrication of the material with fillers is however still possible.
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spelling doaj.art-6339973cd9a44cc5ac0a12e09006fba02023-11-24T17:30:36ZengMDPI AGPolymers2073-43602022-12-011424535210.3390/polym14245352Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of ThermosetsUta Rösel0Maximilian Kneidl1Dietmar Drummer2Jörg Franke3Institute of Polymer Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, GermanyInstitute for Factory Automation and Production Systems, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, GermanyInstitute of Polymer Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, GermanyInstitute for Factory Automation and Production Systems, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, GermanyDue to the increasing demand for electro mobility and specifically for electrified vehicles, the demand for electric drive technology is expanding significantly with changing requirements in terms of the process and the application. The electrical insulation system of the stator is an essential part of the fabrication process with a high impact on the application properties. Due to limitations—for example, in terms of suitable materials for the stator insulation—a new technology of integrated fabrication by injection molding of thermosets has been founded. In this study, two epoxy (EP) types with different fillers were investigated to prove their suitability in terms of the material properties in the fabrication process and the application. A general realization of the integrated fabrication of insulation systems in electrical engineering by injection molding was proved. Further, the differences regarding the suitability of the two materials are portrayed. It was demonstrated that mainly the filler material influences the fabrication process and the properties in the application, leading to differing suitability in terms of the EP 3162 EMG within the fabrication process and in terms of XW 6640-1 within the application properties of the thermal conductivity and the thermal linear expansion. It was further shown that the filler within the material system is required to increase the thermal conductivity needed for the application. The inclusion of the filler influences the reaction kinetics and the viscosity behavior. A fabrication of the material with fillers is however still possible.https://www.mdpi.com/2073-4360/14/24/5352thermosetinjection moldinginsulation system
spellingShingle Uta Rösel
Maximilian Kneidl
Dietmar Drummer
Jörg Franke
Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets
Polymers
thermoset
injection molding
insulation system
title Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets
title_full Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets
title_fullStr Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets
title_full_unstemmed Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets
title_short Possibilities of Integrated Fabrication of Insulation Systems in Electric Drives by Injection Molding of Thermosets
title_sort possibilities of integrated fabrication of insulation systems in electric drives by injection molding of thermosets
topic thermoset
injection molding
insulation system
url https://www.mdpi.com/2073-4360/14/24/5352
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