Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
  • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
  • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K9/00—Screening of apparatus or components against electric or magnetic fields
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
  • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B1/00—Layered products having a non-planar shape
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/04—Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/08—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
  • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
  • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
  • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
  • B32B5/28—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
  • H01M50/121—Organic material
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/10—Primary casings; Jackets or wrappings
  • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K9/00—Screening of apparatus or components against electric or magnetic fields
  • H05K9/0007—Casings
  • H05K9/0047—Casings being rigid plastic containers having conductive particles, fibres or mesh embedded therein
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K9/00—Screening of apparatus or components against electric or magnetic fields
  • H05K9/0073—Shielding materials
  • H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
  • H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
  • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
  • B29K2995/0005—Conductive
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
  • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
  • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
  • B29K2995/0011—Electromagnetic wave shielding material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/712—Containers; Packaging elements or accessories, Packages
  • B29L2031/7146—Battery-cases
• • 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
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
  • Y10T428/24124—Fibers
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3472—Woven fabric including an additional woven fabric layer
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3707—Woven fabric including a nonwoven fabric layer other than paper
  • Y10T442/378—Coated, impregnated, or autogenously bonded
  • Y10T442/3813—Coating or impregnation contains synthetic polymeric material
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
  • Y10T442/659—Including an additional nonwoven fabric

Definitions

• the present invention relates to an EMF-shielded plastic-organic-sheet hybrid structural component, preferably a battery housing and its use in motor vehicles, preferably in electric motor vehicles or hybrid vehicles.
• EMF means electromagnetic field (s).
• Low-frequency electric and magnetic fields are mainly caused by technical applications.
• Each electrical conductor in which current flows is surrounded by a magnetic field and an electric feid.
• Significant in everyday life are mainly the electric and magnetic fields generated by the power supply (50 Hz) and electrified transport systems such as railways (16 2/3 Hz). Due to their physical properties, electrical and magnetic fields are decoupled in the low-frequency range.
• High-frequency electromagnetic fields > 100 kHz - 300 GHz
• HF-EMF High-frequency electromagnetic fields
• the electrical and magnetic components are very closely coupled at a wavelength dependent distance from the source.
• effects and effects e.g. occur when hitting the human body, hardly attributable to the effect of just one of the two components.
• JP 2004-082141 A an injection-molded structural component i! for shielding electromagnetic fields (EMF), known for use as a housing part for batteries in motor vehicles, consisting of a thermoplastic material, namely polypropylene, which has a high electrical conductivity by the addition of metal fibers.
• JP 2005-264097 A describes an injection-molded article of a coated resin composition of metal fibers A, a lower melting point fibrous or cylindrical metal B than A without lead present therein and a thermoplastic resin C. It is an object of the present invention to provide a concept for to develop an EMF-shielding structural component which can shield an electro-technical component against both external EMF and attenuate the EMF emitted by this component without sacrificing mechanical properties.
• an EMF-shielded hybrid structural component which ensures a shielding or attenuation of> 50 db in the frequency range of 100 MHz to 1 GHz according to ASTM D-4935-89, preferably a battery housing, characterized in that this a) consists of an organo-sheet component, which in turn is composed of a fabric or scrim in several layers of a fibrous filler into which carbon fibers or metal fibers are also incorporated, this fabric or scrim being embedded in a thermoplastic and b ) additionally from a further plastic component, preferably from a thermoplastic, looks, which has a high electrical conductivity and high electrical conductivity means that the further plastic component has a volume resistivity to 10 3 ⁇ cm according to ISO 3915 and a surface resistance to 10 3 ⁇ to 1EC 60093 has.
• the organo-sheet component consists of at least one, preferably an organ, whether lech.
• Organo sheets and their use in motor vehicle construction are state of the art.
• organo sheet is understood to mean an initially plate-shaped semifinished product made of fiber-reinforced thermoplastic.
• organo-sheets to be used according to the invention and a method for their production are described in DE 10 2006 013 684 A1 or in DE 10 2004 060 009 A1.
• Prepregs, an alternative term for organo sheet, out a textile substrate and binder, wherein the binder consists essentially of isolated points are disclosed in DE 20 2004 008 122 U l.
• organo sheets in the form of hollow assemblies for the automotive industry is the subject of DE 10 2006 032 867 AI.
• organo sheets in DE 10 230 410 A I is described as an instrument panel carrier in the motor vehicle sector, as is their use as a shaped structural component for the body shop in DE 20 2006 019 341 U 1.
• DE 10 2007 047 012 A1 describes the use of organo sheets for the production of a shaped body, likewise DE 1 0 2008 048 334 A1 and DE 10 2008 063 651 A I.
• the use of such an organic sheet as the end wall of a vehicle cabin and a cross member is the subject of DE 10 2008 021 103 AI.
• a sheet-like sheath organo-sheet to be used according to the invention consists of a thermoplastic matrix which is reinforced by a woven fabric, scrim or a unidirectional fabric.
• Preferred tissues are unidirectional tissues.
• the fabrics preferably consist of glass fibers, aramid or a mixed form of these constituents. Glass fibers are particularly preferred according to the invention.
• Particularly preferred according to the invention are fiber fabrics or fiber felts made of glass fibers, which are surrounded by a matrix of thermoplastic material.
• carbon or metal fibers are also used in the organo-sheet component.
• the content of carbon fibers or Metaltmaschinen in the Organoblechkomponente is 0.1 vol .-% to 30 vol .-%, preferably 10 vol .-% to 30 vol .-%, based on the total fiber content, the total fiber content in the range of 30 vol % to 60% by volume, based on 100% by volume of organo-sheet.
• Steel fibers are preferably used as metal fibers.
• the carbon or metal fibers are used in the organic sheet component in order to achieve the necessary for the battery technology electromagnetic shielding effect.
• the carbon or metal fibers are thereby added in a proportion just necessary to achieve the desired EM shielding property. With conventional organo sheets on pure glass fiber basis, no such effect could be achieved.
• Haibzeug / Organoblech is fully impregnated with this thermoplastic and consolidated, ie the fibers are already completely wetted with plastic, it is located no air in the material and the semi-finished product is converted into three-dimensional components only by heating and subsequent pressing in short cycle times. During forming, the material does not undergo chemical transformation.
• the fiber braid can be oriented only in one direction or oriented in two directions at any angle to each other, preferably at right angles to each other.
• the fiber webs are (very) directional (stretched), embedded with a high degree of orientation and with a high fiber content in the plastic matrix.
• Such organic sheets to be produced and to be used according to the invention preferably have thicknesses of from 0.3 to 6 mm, particularly preferably from 0.5 to 3 mm.
• Suitable functional materials for the production of the organic sheet thermoplastics in question preferably polyamides, in particular aromatic polyamides such as polyphthalamide, polysulfone PSU, polyphenylene sulfide PPS, polyphthalamides (PPA), poly (arylenethersulfone), such as PES, PPSU or PEI, polyester, preferably polybutylene terephthalate (PBT) or polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE) or pofyimtde (PI). Further variants can be found in DE 10 2006 013 684 A 1.
• Thermoplastics are also preferably used for the plastics to be used in the plastics component b). Particularly preferably, the thermoplastics mentioned above in the organo-sheet component are also used here. In a very particularly preferred embodiment, both the organic sheet component and the plastic component b) are made of the same thermoplastic material.
• This fiber-reinforced plastic matrix of the organic sheet component essentially fulfills the mechanical properties required according to the invention.
• Other functions such as fastening, sealing, protection against liquid media and the like are mapped, inter alia, due to the geometric complexity by the further component b).
• This consists according to the invention of an electrically conductive thermoplastic, which is formed by casting, preferably injection molding and connected to the Organoblechkomponente.
• the organic sheet formed as described above is placed in a mold, preferably an injection mold, with a correspondingly shaped mold cavity.
• the plastic component b) is injected and thus brought into the appropriate shape.
• the aim here is that it comes to a cohesive connection between the plastic of the organic sheet component and the plastic, which is the component b).
• the best way to achieve such a material connection by these two plastics have the same polymer base, especially when both are based on a polyamide 6.
• process parameters such as melt temperature and pressure also play a role.
• an EM-shielding effect can also be achieved in such geometric regions of the hybrid structural component, which are difficult to represent by the organic sheet for process-technical reasons, and thus gaps (so-called apertures) be minimized in the EM screen.
• An example of such areas is the sealing contour of a housing, as shown in Fig. 3: For example, by the given space small radii and two short intervals following bends are necessary, which are not fully feasible by an organic sheet.
• flat roof surfaces as in the case of a multi-part housing with seal, can not be formed by the side surface of an organic sheet.
• Another example is the male portion of the housing of FIG. 2 (FIG.
• FIG. 7 shows a fastening dome of the housing from FIG. 2, which likewise would not be suitable for a representation through the organic sheet. Therefore, such geometrically complex or filigree areas are formed by the functional material, preferably a thermoplastic, with high electrical conductivity. With such a material are given by his processing behavior, preferably in injection molding, larger design freedom.
• the electrical conductivity of the plastic to be used as component b), preferably of the thermoplastic, is achieved according to the invention by addition of carbon, metal fibers or carbon nanotubes.
• carbon fibers, metal fibers or carbon nanotubes in the range from 0.1 to 30% by volume are added, the total filler content being in the range of 0.1 to 50 vol .-% based on 100% plastic component is.
• the plastic sheet according to the invention has a shell-shaped or cylindrical or box-shaped form.
• the shape can also be adapted individually to the vehicle geometry, since such a hybrid structural component is to be used according to the invention as a battertight housing and future batteries in motor vehicles can be located at different positions.
• the present invention preferably be used as a battery housing plastic-organo-sheet hybrid structural component additional functions can be installed, as they are made DE 10 2008 059 947 A1 or DE 10 2008 059 955 A1 are known for battery housings, preferably cooling rods with integrated cooling channels or heat-conducting plates.
• An EMF-shielded plastic-organic-sheet hybrid structural component according to the invention is particularly suitable for use in motor vehicle battery housings. These materials are characterized by the following properties: significantly higher energy absorption compared to a pure plastic solution, a pure metal variant, and also compared to a plastic-metal hybrid variant with the same weight, which in case of a crash of considerable importance for motor vehicle Battery and theirjansstabiitician has. - Components must not be reworked in comparison with duroplastic, long glass fiber reinforced materials.
• Plastic components can be welded on and the battery housing thus further functions are closely connected to this or the function of the battery.
• a plastic-organo-sheet hybrid material on the one hand by the targeted use of carbon or steel fibers in the organic sheet, and on the other by the use of an electrically conductive plastic as another component b) are designed so that a sufficient EMF Effect can be achieved, with apertures in the EM screen can be minimized.
• the material is also suitable for use in automotive battery housings.
• a sufficient EMF effect in the sense of the present invention means a shielding or attenuation of> 50 db in the frequency range from 100 MHz to 1 GHz according to ASTM D-4935-89.
• plastic-based solutions such as electrically conductive compounds, galvanized plastic components, plastic-metal hybrids
• a plastic-organo-sheet hybrid variant according to the invention offers considerable Advantages: lower weight (compared to plastic-metal hybrids, metal-sheet, cast aluminum) - better mechanical behavior, higher energy absorption (compared to conductive, metal-filled plastics, plastic-metal hybrids) better resistance to liquid media, such as electrolyte from batteries (as opposed to galvanized or metal-coated plastics).
• the present invention therefore also relates to the use of a hybrid structural component which a) from an organo-sheet component, which in turn is composed of a fabric or scrim in several layers of a fibrous filler, in which also carbon fibers or metal fibers are incorporated, said tissue or scrim embedded in a thermoplastic and b) in addition, preferably, is made of a further plastic component of a thermoplastic having a high electrical conductivity, characterized by a passage resistance to 10 3 ⁇ cm according to ISO 3915 and a Oberfiambaenwiderstand to 10 3 ⁇ according to IEC 60093 expressed by adding, based on 100 vol .-% total filler content of the plastic component carbon, metal fibers or Carbonanotubes in the range of 0, 1 - 30 VoL-%, wherein the total filler content in the range of 0, 1-50 Vol .-% based on 100% plastic
• Component lies, for the shielding of electromagnetic fields (EMF).
• EMF electromagnetic fields
• the present invention relates to the use of the plastic organo-sheet hybrid structural component according to the invention as an EMF-shielding hybrid structural component in vehicles, preferably in motor vehicles.
• EMF-shielding plastic-organo-sheet hybrid structural components in the sense of the present application, in addition to battery housings but also other housing, the electronic components ilkomponenten record, preferably fuse boxes, devices from the Wegmunikatäons Scheme or Navigationsbere me and others.
• non-EMF-shielding fibrous filler in addition to the carbon fibers or metal fibers in the organo-sheet component, non-EMF-shielding fibrous filler, glass fibers or aramid or a mixed form of these components are used.
• FIG. 1 shows an organo-sheet structure to be used according to the invention.
• A glass fiber fabric in the cutting direction
• B glass fiber fabric perpendicular to the cutting direction
• C metal or carbon fiber fabric perpendicular to the cutting direction.
• a battery housing as a hybrid structural component, consisting of a lower part (A), provided with fastening elements and various connections (for example for electrical and cooling), screwed to an upper part (A). Both parts are sealed against external influences by means of a gasket (for example elastomeric rounddening) in the screw / flange area.
• a gasket for example elastomeric rounddening
• FIG 3 shows an exemplary section through a hybrid structural component according to the invention, comprising an upper housing part (A), a lower housing part with two material components (B) and (C), and a seal (E).
• this housing part consists of an electrically conductive plastic (B) with which the roof surface (D) is also formed, outside this area the lower part also consists of an organic sheet (C).
• Fig. 4 shows the battery case of Fig. 2 in front view.
• FIG. 5 the section A-A of Fig. 4 is shown, wherein (B) consists of an electrically conductive plastic and (A) consists of an organic sheet.
• Fig. 6 shows the battery case of Fig. 2 in a side view.
• Fig. 7 shows the section B-B of Fig. 6, wherein (B) consists of an electrically conductive plastic and (A) consists of an organic sheet.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Manufacturing & Machinery (AREA)
• Textile Engineering (AREA)
• Dispersion Chemistry (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Reinforced Plastic Materials (AREA)
• Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
• Laminated Bodies (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
• Battery Mounting, Suspending (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

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• 2010
  • 2010-09-01 EP EP20100174914 patent/EP2427038A1/de not_active Withdrawn
• 2011
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