WO2020091128A1 - Film de dépôt métallique, pour condensateur à film, utilisé pour un moteur d'entraînement d'un véhicule électrique - Google Patents

Film de dépôt métallique, pour condensateur à film, utilisé pour un moteur d'entraînement d'un véhicule électrique Download PDF

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Publication number
WO2020091128A1
WO2020091128A1 PCT/KR2018/013953 KR2018013953W WO2020091128A1 WO 2020091128 A1 WO2020091128 A1 WO 2020091128A1 KR 2018013953 W KR2018013953 W KR 2018013953W WO 2020091128 A1 WO2020091128 A1 WO 2020091128A1
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WIPO (PCT)
Prior art keywords
film
layer
electric vehicle
metal deposition
zinc
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PCT/KR2018/013953
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English (en)
Korean (ko)
Inventor
한세진
신준섭
유희진
Original Assignee
성문전자주식회사
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Publication of WO2020091128A1 publication Critical patent/WO2020091128A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/12—Organic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/33—Thin- or thick-film capacitors 
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/50—Structural details of electrical machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the present invention relates to a metal deposition film for a film capacitor used in a driving motor of an electric vehicle, and more specifically, to deposit a zinc or zinc-aluminum alloy layer by a deposition method on the surface of a dielectric film for the production of a film capacitor.
  • Vacuum-curing thermosetting materials especially melamine resin, improves heat resistance and oxidation resistance, and increases the capacity of the capacitor due to the high dielectric constant thermosetting material, thereby enabling miniaturization of the capacitor in the electric vehicle, thereby reducing the weight of the electric vehicle. It relates to a metal deposition film for a film capacitor used in a driving motor of an electric vehicle improved to contribute.
  • a capacitor is a device that can store electricity, called a "capacitor," and the basic structure of such a capacitor is a structure in which a dielectric is inserted between both electrodes.
  • All such conductors can be used as such electrodes, but they must have basic characteristics that are inexpensive in the manufacturing process, workability such as solderability, and are not easily oxidized.
  • Aluminum and zinc are generally used as electrodes for film capacitors, and silver, copper, nickel, and palladium are used for ceramic capacitors.
  • a basic unit composed of a dielectric and an electrode is called an element, and in order to increase the capacity, the structure of the element is stacked or wound, and the capacitor used for electronic devices is a product composed of one element, but power is generally used. In the condenser, dozens of elements are connected in direct or parallel to form the required capacity.
  • the capacity unit of ceramic capacitors for single-element products is picoparad, whereas the capacity unit of film capacitors for Tsumja products is ⁇ F.
  • a metal deposition film capacitor in which a dielectric and an electrode are integrated is generalized.
  • capacitors store electricity is because of the polarization of dielectrics. That is, in the electric field state, the electric dipoles inside the dielectric are randomly distributed and have the same properties as an insulator, but when a voltage is applied to the electrode to generate an electric field, the dipoles are aligned in the direction of the electric field. This phenomenon is called polarization, and the stronger the polarization (the more dipoles), the higher the dielectric constant.
  • the metal deposition film constituting the film condenser as illustrated in Figure 1, the coating drum 100, the mask 110 is installed at a distance from the coating metal, such as aluminum or zinc, evaporated by heating through the boat 120 130 is manufactured in a form that is deposited on the surface of the base film 150 is moved along the surface of the coating drum (100).
  • the coating metal such as aluminum or zinc
  • the metal deposition film is made of a vacuum deposition method that is deposited while maintaining a constant vacuum in the vacuum chamber 140.
  • a film condenser used for AC power is disclosed in a metal deposition film in the form of an electrode through aluminum and zinc.
  • a base film based on polypropylene is used.
  • the surface of the top surface of 150 is modified with an ion gun to form an aluminum deposition layer 152 to a thickness of several nanometers (nm) in a state where the adhesion is increased, and several tens of nanometers are deposited on the aluminum deposition layer 152.
  • a zinc deposition layer 154 of a meter (nm) is formed, and an oil layer 156 is formed on the zinc deposition layer 154 by applying oil for the purpose of protecting a zinc layer susceptible to oxidation.
  • this structure has a merit of having a stable deposition structure and good conductivity, it monitors resistance when controlling the deposition thickness, but it has two layers, such as the aluminum deposition layer 152 and the zinc deposition layer 154. It is difficult to monitor the resistance, so it has a limitation that it is difficult to control the thickness.
  • the metal deposition film is also used in the condenser for the inverter that rolls the wheel in the driving motor of an electric vehicle, where high voltage and high current flow.
  • the frequency characteristics should be uniform, the electrical loss rate should be low, and the heat resistance should also be provided.
  • the IGBT amplification voltage and current connected to the 3.7V battery in series increase significantly, and the electric shock must hold the capacitor.
  • the film for the capacitor of the conventional structure must have a sufficient length, but the volume is inevitably increased due to the thick film relationship (two-layer structure), which in turn increases the weight of the capacitor, thereby inhibiting the weight reduction of the electric vehicle. .
  • thermosetting material when depositing a zinc or zinc-aluminum alloy layer by a deposition method on the surface of the film as a dielectric for the production of film capacitors
  • the melamine resin is vacuum-deposited to improve heat resistance and oxidation resistance, and the capacity of the condenser is also increased due to the high dielectric constant thermosetting material, thereby making it possible to miniaturize the condenser entering the electric vehicle, thereby contributing to the weight reduction of the electric vehicle.
  • the main objective is to provide a metal deposition film for a film capacitor used in an improved electric vehicle drive motor.
  • the present invention as a means for achieving the above object, the base film 10 and; A first barrier layer 20 vacuum-deposited on the base film 10; A single metal layer 30 layered on the first barrier layer 20; It provides a metal deposition film for a film capacitor used in a driving motor of an electric vehicle comprising a; a second barrier layer 40 vacuum-deposited on the metal layer (30).
  • the present invention is a base film 10 and; A first barrier layer 20 vacuum-deposited on the lower surface of the base film 10; A single metal layer 30 layered on the base film 10; Also provided is a metal deposition film for a film capacitor used in a driving motor of an electric vehicle, comprising; a second barrier layer 40 vacuum-deposited on the metal layer 30.
  • the base film 10 is a polypropylene film or a polyethylene terephthalate film having a thickness of 2.5 ⁇ m or less;
  • the first and second barrier layers 20 are layers made of melamine resin;
  • the metal layer 30 is also characterized by being a single layer of zinc or a single layer of zinc-aluminum alloy.
  • thermosetting material particularly melamine resin
  • FIG. 1 is a schematic view showing a main portion of a deposition apparatus for manufacturing a metal deposition film according to the prior art.
  • Figure 2 is an exemplary cross-sectional view of a metal deposition film formed according to the prior art.
  • FIG 3 is an exemplary cross-sectional view of a metal deposition film for a film capacitor used in a driving motor of an electric vehicle according to the present invention.
  • FIG. 4 is an exemplary cross-sectional view showing another example of a metal deposition film for a film capacitor used in a driving motor of an electric vehicle according to the present invention.
  • the metal deposition film for a film capacitor used in a drive motor of an electric vehicle is composed of a single layer formed of a zinc single layer or a zinc-aluminum alloy, not a two-layer metal deposition layer.
  • the metal deposition film includes a base film 10, a first barrier layer 20 vacuum-deposited on the base film 10, and The first barrier layer 20 is formed of a metal layer 30 deposited on the thin film layer and a second barrier layer 40 vacuum-deposited on the metal layer 30.
  • the base film 10 is a polypropylene film or a polyethylene terephthalate film, and the thickness must be maintained at 2.5 ⁇ m or less for forming a thin film.
  • the barrier layer 30 should be made of a thermosetting resin, and the most preferred resin is melamine resin.
  • first and second barrier layers 20 and 40 also prevent oxidation of the metal layer 30 to be described later, the function of the existing oil layer is naturally performed together, thereby eliminating problems caused by the existence of the oil layer. It also has its advantages.
  • first and second barrier layers 20 and 40 should basically have moisture blocking and oxygen blocking characteristics, and furthermore, must have heat resistance, transparency, and a dielectric constant of a certain level or higher.
  • the melamine resin applied in the present invention is a heat-resistant material having a property of evaporating without melting when heated as a resin of a condensate of melamine and formaldehyde, and is transparent because it has a lower refractive index (1.4) than PET. It has excellent moisture barrier properties and oxygen barrier properties, and also has a high dielectric constant of about 6, thus forming a barrier suitable for the present invention.
  • the melamine resin can handle all the characteristics of the existing aluminum deposition layer and the oil layer.
  • melamine is an organic base as a heterocyclic amine, and because it is a triamide of cyanamide, 66% of its mass is made of nitrogen, so it has a property to withstand fire. That is, there is also fire resistance.
  • first and second barrier layers 20 and 40 completely block oxygen and moisture, oxidation of the metal layer 30 can be prevented, and thus long life and condensing effects can be properly implemented. This is because oxygen and moisture contained in the base film 10 are easily oxidized to the metal layer, particularly oxidized zinc as it elutes under heat, and thus it is possible to block such a phenomenon.
  • a barrier is formed on the melamine resin, it is possible to maintain the frequency characteristics uniformly when applying a metal deposition film for a capacitor used in a driving motor of an electric vehicle, lower the electrical loss rate, and increase the heat resistance, so that it can be instantaneous or suddenly accelerated.
  • the electric shock can be sufficiently buffered, and the pattern bursting phenomenon due to heat generation can be suppressed.
  • the first and second barrier layers 20 and 40 function to reinforce the base film 10 because it is weak to heat.
  • first and second barrier layers 20 and 40 may also be implemented as a thin film, and thus the thickness of the base film 10 and the metal layer 30 may be lowered due to the barrier effect obtained.
  • the melamine resin constituting the 1,2-barrier layer (20, 40) also has a high dielectric constant, but it is a thin film due to the two barriers, so it can increase the dielectric constant, that is, the electric capacity, so it is possible to reduce the number of turns when condenser is configured. It also contributes to weight reduction due to volume reduction.
  • C (capacity) ⁇ (permittivity) ⁇ (electrode area / thickness) is determined.
  • the dielectric constant can be increased by introducing melamine resin, so that the electrode area is the same as in the previous capacity design. In other words, the number of turns to wind can be reduced. Of course, if the thickness is further reduced, the electric capacity can be further increased.
  • the volume of the condenser is reduced by that amount, so that the compaction is possible, and accordingly, the weight can be reduced, thereby contributing to the weight reduction in the electric vehicle.
  • the metal layer 30 is deposited by a single layer of zinc or a single layer of zinc-aluminum alloy.
  • the base film 10 of either the polypropylene film or the polyethylene terephthalate by directly depositing zinc on the base film 10 of the polypropylene film or the polyethylene terephthalate
  • the process simplification can be achieved by modifying only the surface of) to coat one layer rather than two.
  • the main role of the aluminum deposition layer is to obtain moisture-proof, gas-barrier and directional, and sealability (thermal adhesion).
  • the second barrier layer 40 rather than the existing oil layer is zinc-deposited. By forming it on the upper surface of the layer 20, an equivalent effect that can be obtained due to the presence of the aluminum deposition layer is obtained.
  • the second barrier layer 40 forms a skin
  • 2.5 parts by weight of ebonite and 1.5 parts by weight of cyanoacrylate to further enhance the scratch resistance, heat resistance, and voltage resistance
  • 1.5 parts by weight of oxybis, 2.5 parts by weight of spherical silica and 2.5 parts by weight of 2-phenylimidazole may be further added.
  • the ebonite is a hard rubber made by adding sulfur and other blends to raw rubber and heating it, and is added to enhance electrical insulation, that is, withstand voltage.
  • the cyanoacrylate (cyanoacrylate) is added to enhance the adhesion stability while suppressing the high thermal expansion and maximize the adhesive fixing force.
  • the oxybis (OXYBIS) refers to isopropyl ether (Iso-PropylEther) as being added to enhance abrasion resistance by forming a cured film through a crosslinking function, and the spherical silica is surfaced in the composition due to specific gravity difference. Therefore, since it exists only on the surface, it maintains smoothness on the surface and serves to enhance scratch resistance on the surface.
  • the 2-phenylimidazole is added to enhance the structural stability of the reactant and to increase the thermal stability of the liquid due to a small heat shrinkage during heat drying, and in particular to increase the adhesion of the coating film.
  • the metal deposition film according to the present invention may be implemented in another embodiment of the form shown in FIG. 4.
  • a metal deposition film for a film capacitor used in a driving motor of an electric vehicle includes a base film 10; A first barrier layer 20 vacuum-deposited on the lower surface of the base film 10; A single metal layer 30 layered on the base film 10; It may have a structure comprising; a second barrier layer 40 vacuum-deposited on the metal layer 30.
  • the present invention looks very simple and simple, but has not been disclosed so far, and has been solved as a problem that has been solved as a problem until now, while remarkable effects of achieving both production efficiency, process efficiency, and cost reduction. to provide.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

La présente invention concerne un film de dépôt métallique, pour un condensateur à film, utilisé pour un moteur d'entraînement d'un véhicule électrique et, plus spécifiquement, un film de dépôt métallique qui, lorsqu'une couche de zinc ou d'alliage de zinc-aluminium est déposée par dépôt sur la surface d'un film qui est un corps diélectrique afin de fabriquer un condensateur à film, améliore la résistance thermique et la résistance à l'oxydation par dépôt sous vide d'un matériau thermodurcissable et, en particulier, d'une résine de mélamine, et augmente la capacité du condensateur au moyen du matériau thermodurcissable présentant une constante diélectrique élevée, ce qui réduit ainsi la taille du condensateur prévu dans un véhicule électrique et permet d'obtenir un véhicule électrique de poids léger.
PCT/KR2018/013953 2018-10-29 2018-11-20 Film de dépôt métallique, pour condensateur à film, utilisé pour un moteur d'entraînement d'un véhicule électrique WO2020091128A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0129507 2018-10-29
KR1020180129507A KR102140114B1 (ko) 2018-10-29 2018-10-29 전기자동차의 구동모터에 사용되는 필름콘덴서용 금속증착필름

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111564312A (zh) * 2020-06-05 2020-08-21 国家电网有限公司 一种耐高温电容器用聚丙烯薄膜及其制备方法

Citations (4)

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US3935334A (en) * 1973-06-06 1976-01-27 Oike & Company, Ltd. Process for preparing a metallized resin film for condenser element
JPS63255361A (ja) * 1987-04-10 1988-10-21 Teijin Ltd 蒸着用積層ポリエステルフイルム及びその製造方法
JPH0259613B2 (fr) * 1983-12-02 1990-12-13 Unitika Ltd
US20090324972A1 (en) * 2008-04-04 2009-12-31 Applied Materials, Inc. Method for depositing of barrier layers on a plastic substrate as well as coating device therefor and a layer system

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Publication number Priority date Publication date Assignee Title
US4493872A (en) * 1983-12-05 1985-01-15 American Hoechst Corporation Polyester film coated with metal adhesion promoting copolyester
KR19980066056A (ko) 1997-01-18 1998-10-15 이광식 스프레이면을 강화한 콘덴서용 알루미늄 금속 증착필름과 그 제조방법
KR100302106B1 (ko) 1998-12-24 2001-11-30 신동열 두개의강화층을갖는콘덴서용금속증착필름및그제조방법
JP6284442B2 (ja) * 2014-06-24 2018-02-28 小島プレス工業株式会社 ポリユリア膜及びそれを用いたフィルムコンデンサ素子
KR20170010244A (ko) 2015-07-17 2017-01-26 성호전자(주) 금속증착필름의 진공증착장치
KR101844886B1 (ko) 2015-12-08 2018-04-04 이성규 필름 콘덴서

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3935334A (en) * 1973-06-06 1976-01-27 Oike & Company, Ltd. Process for preparing a metallized resin film for condenser element
JPH0259613B2 (fr) * 1983-12-02 1990-12-13 Unitika Ltd
JPS63255361A (ja) * 1987-04-10 1988-10-21 Teijin Ltd 蒸着用積層ポリエステルフイルム及びその製造方法
US20090324972A1 (en) * 2008-04-04 2009-12-31 Applied Materials, Inc. Method for depositing of barrier layers on a plastic substrate as well as coating device therefor and a layer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111564312A (zh) * 2020-06-05 2020-08-21 国家电网有限公司 一种耐高温电容器用聚丙烯薄膜及其制备方法

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KR102140114B1 (ko) 2020-07-31

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