WO2018210479A1 - Conducteur électrique - Google Patents

Conducteur électrique Download PDF

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Publication number
WO2018210479A1
WO2018210479A1 PCT/EP2018/058534 EP2018058534W WO2018210479A1 WO 2018210479 A1 WO2018210479 A1 WO 2018210479A1 EP 2018058534 W EP2018058534 W EP 2018058534W WO 2018210479 A1 WO2018210479 A1 WO 2018210479A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
electrical conductor
change material
phase change
fibers
Prior art date
Application number
PCT/EP2018/058534
Other languages
German (de)
English (en)
Inventor
Martin Koehne
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2018210479A1 publication Critical patent/WO2018210479A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon

Definitions

  • the electrical conductor according to the invention with the characterizing features of the main claim has the advantage that the heat capacity of the electrical conductor is increased by a phase change material is provided between the fibers of the electrical conductor.
  • the latent heat capacity of the electrical conductor can thereby reach a value in the range of
  • Heat capacity of metallic conductors is or is higher than the heat capacity of metallic conductors, in particular of copper.
  • the phase change material of the electrical conductor absorbs or releases heat energy during the phase change, for example, the energy input or output is> 100 kJ / l.
  • the heat generated in the electrical conductor at short-term peak loads is absorbed by the phase change material, so that the temperature in the electrical conductor during the peak load increases less than in the prior art. In this way, the electrical conductor can endure higher peak loads or equal peak loads for a longer time without, for example, damaging the electrical insulation of the electrical conductors or the bearings of the electrical machine.
  • the electrical conductor is enclosed by the phase change material such that an electrical insulation layer of the electrical conductor is formed.
  • the phase change material takes over the function of the electrical insulation of the electrical conductor in addition to increasing the heat capacity. It is also advantageous if the individual fibers of the conductor with the
  • Phase change material are coated, since the phase change material in this way has a good contact with the fibers and thereby can absorb the heat generated in the fibers well. It is also advantageous if the fibers of the conductor are incorporated in the phase change material or completely surrounded by the phase change material. In this way, a particularly large amount of phase change material is arranged between the fibers, so that the effect according to the invention is particularly high. It is also advantageous if the fibers of the electrical conductor with the
  • Phase change material are infiltrated. Due to this intrusion of the
  • phase change material into the individual fibers the heat generated in the fibers can be absorbed directly by the phase change material.
  • the phase change material used is pentaerythritol, trimethylolethane and / or tris (hydroxymethyl) aminomethane.
  • phase change material in particular sodium dodecylbenzenesulfonate, octylphenol ethoxylate or naphthalene sulfonic acid or anthraquinone, is added to the phase change material, since in this way the individual fibers of the composite are wettable for the phase change material so that the penetration of the phase change material into the individual phases Fibers is facilitated.
  • a surface-active material in particular sodium dodecylbenzenesulfonate, octylphenol ethoxylate or naphthalene sulfonic acid or anthraquinone
  • the drawing shows in section a simplified illustrated electrical conductor according to the invention.
  • the electrical conductor 1 is formed from a composite of fibers and / or filaments 2.
  • fibers 2 are formed from a composite of fibers and / or filaments 2.
  • the individual fibers 2 include carbon nanotubes (CNT nanotubes) and / or a plurality of layers of graphene and are in particular made of carbon nanotubes and / or from a
  • the electrical conductor 1 comprises a multiplicity of fibers 2 which extend in the direction of a longitudinal extension 1.1 of the conductor 1 and are held together in a known manner, for example by twisting, braiding or knotting and / or by a composite material connecting the fibers or enclosing the fibers.
  • phase change material 3 is provided between the fibers 2 of the electrical conductor 1. It may also be a mixture of different phase change materials 3 between the fibers be arranged.
  • the phase change material can be provided as a coating of the individual fibers 2 or as a matrix material in which the fibers 2 are embedded and which fills the cavities of the composite. These two embodiments can be achieved by known methods, such as dip painting, vapor deposition, sublimation vaporization, spraying or coating.
  • Coating takes place in particular by dip coating, vapor deposition,
  • Sublimation evaporation, spraying or coating The filling of the cavities of the composite is preferably carried out by vacuum infiltration, dip coating or coating.
  • the fibers can with the
  • Phase change material are coated or infiltrated.
  • the yarn can also be coated or infiltrated with the phase change material, regardless of whether this has already been done with the fibers.
  • the phase change material 3 absorbs heat during a phase change in a known manner or releases it to the environment.
  • the energy input or output is, for example, greater than 100 kJ / l.
  • the fibers 2 of the electrical conductor may be enclosed by the phase change material 3 such that an electrical insulation layer 4 of the electrical conductor 1 is formed.
  • the fibers 2 of the electrical conductor 1, if they are porous, may be infiltrated with the phase change material 3, which can be achieved by a known infiltration process. In this way, the phase change material 3 is also within the individual fibers 2.
  • a phase change material for example, pentaerythritol
  • Trimethylolethane and / or tris (hydroxymethyl) aminomethane can be used.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Conductive Materials (AREA)

Abstract

On connait des conducteurs électriques respectivement composés d'un ensemble de fibres constituées de nanotubes de carbone et/ou d'une pluralité de couches de graphène. Le conducteur électrique présente une couche d'isolation électrique réalisée par application d'un revêtement polymère. De tels conducteurs électriques ont pour inconvénient d'avoir une capacité thermique nettement inférieure à celle des métaux. Lorsque ce type de conducteurs électriques est employé pour former la bobine électrique de machines électriques, il est possible qu'en raison de la faible capacité thermique, en particulier en cas de brève charge de pointe, il se produise, dans la bobine électrique, une hausse de température plus élevée qu'avec les bobines en cuivre traditionnelles. Afin de ne pas dépasser une charge thermique admissible de la machine électrique, cette dernière doit présenter une puissance plus élevée que réellement nécessaire, ce qui entraîne des coûts de fabrication relativement élevés. La capacité thermique du conducteur électrique selon l'invention est augmentée. Selon l'invention, un matériau à changement de phase (3) est prévu entre les fibres (2) du conducteur électrique (1).
PCT/EP2018/058534 2017-05-16 2018-04-04 Conducteur électrique WO2018210479A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017208232.1A DE102017208232A1 (de) 2017-05-16 2017-05-16 Elektrischer Leiter
DE102017208232.1 2017-05-16

Publications (1)

Publication Number Publication Date
WO2018210479A1 true WO2018210479A1 (fr) 2018-11-22

Family

ID=61952684

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/058534 WO2018210479A1 (fr) 2017-05-16 2018-04-04 Conducteur électrique

Country Status (2)

Country Link
DE (1) DE102017208232A1 (fr)
WO (1) WO2018210479A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021197679A1 (fr) * 2020-03-30 2021-10-07 Robert Bosch Gmbh Machine électrique dotée de conducteurs électriques souples et de moyens d'isolation de mise en forme

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112574715A (zh) * 2019-09-29 2021-03-30 江苏烯泰石墨烯应用技术研究院有限公司 一种制备石墨烯复合固固相变材料的方法
DE102021209022A1 (de) 2021-08-17 2023-02-23 Leoni Bordnetz-Systeme Gmbh Straßenfahrzeug sowie elektrische Leitung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012106406A1 (fr) 2011-02-01 2012-08-09 General Nano Llc Procédés de revêtement d'allongements de nanotubes de carbone
EP2535903A2 (fr) * 2010-02-09 2012-12-19 Vryus Co., Ltd Fibre de graphène, son procédé de fabrication et utilisation de celle-ci
EP2637176A1 (fr) * 2012-03-07 2013-09-11 Siemens Aktiengesellschaft Bobine électrique
US20140001417A1 (en) * 2011-03-15 2014-01-02 IUCF-HYU(Industry University Cooperation Foundati on Hanyang University) Hybrid polymer composite fiber including graphene and carbon nanotube, and method for manufacturing same
DE102013215256A1 (de) * 2013-08-02 2015-02-05 Siemens Aktiengesellschaft Latentwärmespeicher und Herstellungsverfahren dazu
DE102013220412A1 (de) * 2013-10-10 2015-04-16 Siemens Aktiengesellschaft Elektrische Maschine mit Rotor, Spulenwicklung und elektrisch leitendem Element
DE102014205290A1 (de) * 2014-03-21 2015-09-24 Siemens Aktiengesellschaft Elektrische Maschine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2535903A2 (fr) * 2010-02-09 2012-12-19 Vryus Co., Ltd Fibre de graphène, son procédé de fabrication et utilisation de celle-ci
WO2012106406A1 (fr) 2011-02-01 2012-08-09 General Nano Llc Procédés de revêtement d'allongements de nanotubes de carbone
US20140001417A1 (en) * 2011-03-15 2014-01-02 IUCF-HYU(Industry University Cooperation Foundati on Hanyang University) Hybrid polymer composite fiber including graphene and carbon nanotube, and method for manufacturing same
EP2637176A1 (fr) * 2012-03-07 2013-09-11 Siemens Aktiengesellschaft Bobine électrique
DE102013215256A1 (de) * 2013-08-02 2015-02-05 Siemens Aktiengesellschaft Latentwärmespeicher und Herstellungsverfahren dazu
DE102013220412A1 (de) * 2013-10-10 2015-04-16 Siemens Aktiengesellschaft Elektrische Maschine mit Rotor, Spulenwicklung und elektrisch leitendem Element
DE102014205290A1 (de) * 2014-03-21 2015-09-24 Siemens Aktiengesellschaft Elektrische Maschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KINGA PIELICHOWSKA ET AL: "Phase change materials for thermal energy storage", PROGRESS IN MATERIALS SCIENCE., vol. 65, 1 August 2014 (2014-08-01), GB, pages 67 - 123, XP055483004, ISSN: 0079-6425, DOI: 10.1016/j.pmatsci.2014.03.005 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021197679A1 (fr) * 2020-03-30 2021-10-07 Robert Bosch Gmbh Machine électrique dotée de conducteurs électriques souples et de moyens d'isolation de mise en forme
US20230118257A1 (en) * 2020-03-30 2023-04-20 Robert Bosch Gmbh Electric machine with flexible electrical conductors and shaping insulations

Also Published As

Publication number Publication date
DE102017208232A1 (de) 2018-11-22

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