专利摘要:
Electrical harnesses (100) and methods for making electrical harnesses (100) are disclosed. The electrical bundles (100) may include an electrical conductor wire (112) and a resin-infused braided sheath (106) surrounding a portion of the lead wire (112), at least a portion of the braided sheath (106) being infused with a curable resin. The harnesses (100) may include an electrically conductive wire (112) and a braided sheath (106) surrounding a portion of the electrical lead wire (112), at least a portion of the braided sheath (106) comprising a first hardened resin providing a stiffness at the first portion of the cured resin (106) and at least a second portion of the braided sheath (106) which is collapsible.
公开号:FR3015105A1
申请号:FR1462051
申请日:2014-12-08
公开日:2015-06-19
发明作者:Paul Guthrie
申请人:Rohr Inc;
IPC主号:
专利说明:

[0001] SYSTEMS AND METHODS FOR HISTORIC RESIN BEAM BEAM STRUCTURE Electrical harnesses are often used to distribute signals and current to various components of a vehicle, such as the various components in and around a gas turbine engine in a vehicle. an airplane, to and from electrical components of a landing gear of an airplane, or to and from electrical components of a motor vehicle. The electrical current and the signals to and from the individual electrical components are generally transmitted along conductive wires. Such conductors may be in the form of wires and / or cables that can be assembled to form a bundle. The connections between the individual components and the beam can be ensured, for example, by a multipolar plug and / or female connectors.
[0002] In order to protect the wiring harness from contact with hot surfaces, or with sharp edges, which, associated with the vibration may cause friction or other forms of wear, the cable bundle is generally supported by multiple hooks, clips and fasteners. These hooks, clips and fasteners are conventional materials that are attached to a structure, which in turn support or suspend the beam to keep it away from surfaces and components. Due to the flexibility of the cable bundles, support is generally required at close intervals along the length of the bundle to prevent buckling of the bundle and its contact with a surface. For aerospace components, where the breakage of a wiring harness could result in a disaster, stringent regulations dictate the maximum permissible intervals between a hook or support clamp. These hooks or clamps each add extra weight to the cable harness system, which in an aircraft reduces efficiency and increases the costly fuel consumption. The need for hooks and clips at short intervals along a bundle of cables may dictate the path of the wiring harness between the components. The path of the beam should be adjacent to the support structures on which the hooks and clamps are to be attached. Sometimes the most convenient and convenient path for the beam is a path adjacent to the appropriate support structures, but this would not be the most efficient or direct route. Thus, the need for hooks and support clips at short regular intervals can make a cable harness path longer than necessary and add additional weight.
[0003] In order to further protect the wires and cables, a typical bundle would also include various layers of thermal and electromagnetic insulation and an outer protective sheath (eg, a polyetheretherketone ("PEEK") cladding layer to help protect the beam against friction, high temperatures, electromagnetic interference, etc. These layers of insulation and protection also add additional weight to the cable harness system SUMMARY Electrical harnesses and electrical harness manufacturing processes are disclosed here In various embodiments, the electrical bundles comprise an electrical conductive wire and a braided sheath infused with curable resin surrounding a portion of the conductive wire, wherein at least a portion of the braided sheath is infused with a curable resin is disclosed. compliance with various embodiments, the bundles elec disclosed are an electrically conductive wire and a braided sheath surrounding a portion of the electrical lead, at least a portion of the braided sheath comprising a first cured resin providing rigidity to the first portion of the cured resin and at least a second part of the braided sheath that is foldable. The electrical harnesses according to the invention may also comprise one or more of the following features: the electrical harness comprises a fiberglass shielding layer at least partially surrounding the electrically conductive wire; the curable resin is at least one of a polyurethane resin, a methacrylate resin and an epoxy resin; the curable resin has undergone a hardening process; the braided sheath is at least one of a braided sheath of fiber covered with metal and a braided sheath copper covered with nickel; The braided sheath comprises at least one fiber selected from a thermoplastic fiber, an aramid fiber, a carbon fiber, a stainless steel microfilament and a copper fiber; the electrical harness comprises a plurality of shielded cables and the braided sheath infused with the hardenable resin surrounds the plurality of shielded cables. BRIEF DESCRIPTION OF THE FIGURES FIG. 1 illustrates a sheath structure of a bundle according to various embodiments; FIG. 2 illustrates a sheath structure of a bundle according to various embodiments; FIGs. 3A-3B illustrate different views of electrical connectors according to various embodiments; FIG. 4 illustrates methods of manufacturing an electrical harness according to various embodiments; FIG. Figure 5 illustrates methods of manufacturing an electrical harness according to various embodiments; and FIG. 6 illustrates methods of manufacturing an electrical harness according to various embodiments.
[0004] DETAILED DESCRIPTION The detailed description of the exemplary embodiments described herein refers to the accompanying illustrations, which illustrate exemplary embodiments by illustration and their best mode, not by limitation. While these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the various disclosed embodiments, it should be understood that other embodiments may be realized and logical modifications may be made. Chemical and mechanical can be made without departing from the spirit and scope of the embodiments. For example, the steps described in any of the methods or process descriptions can be performed in any order and are not necessarily limited to the order presented. In addition, several functions or steps may be outsourced or performed by one or more third parties. In addition, any reference to the singular may include plural embodiments, and any reference to plural components or steps may include an embodiment or a singular step. But also, any reference to the terms "attached," "secured," "secure," "connected," etc., may include any permanent, removable, temporary, partial, full, and / or other attachment option . In addition, any reference to direct contact may include touching a game. As described in detail here, the electrical bundles are disclosed in various embodiments. In various embodiments, the disclosed electrical bundles may be used in vehicles, eg, in a landing gear of an aircraft comprising an electrical system capable of transferring electrical signals or a gas turbine engine comprising a electrical system. In particular, the electrical harnesses described herein can be used in the area around the engine of a gas turbine engine. The term "connector" may include any suitable electrical connector known now or which will be developed in the future. The connector may be of any shape, such as a square, a rectangle, a cone or a circle. Various embodiments also include mating connectors that can be mated with or plugged with various types of connectors, such as sockets or receptacles. Examples of receptacles include receptacles that are compatible with connectors that comply with industry and government standards, such as EN2997, MIL-C-83723 III & ESC Series 10 connectors, and available 983 Series connectors. commercially available from DEUTSCH, the TE Connectivity® connection platform. In various embodiments, an electrical connector may include an aluminum shell and a stainless steel safety ring, a stainless steel shell and an aluminum safety ring, an aluminum shell and an aluminum safety ring, a stainless steel shell and a stainless steel safety ring. The specific material of the connectors is not particularly limited and may include stainless steel, aluminum, and other metal alloys. The term "electrically conductive wire" may include any suitable conductor, such as a wire having a metal core that can transmit a signal and / or conduct electricity, conductive wires and / or insulated conductive wires. In various embodiments, the metal may be copper, stainless steel, or any other metal or metal alloys capable of transmitting a signal and / or conducting electricity. The size of the electrically conductive wire is not particularly limited but may vary from about 40 AWG (about 0.0799 mm) to about 0000 AWG (about 11.684 mm), about 35 AWG (about 0.143 mm) to about 1 AWG (about 7.348 mm), and about 15 AWG (about 1.450 mm) to about 5 AWG (about 4.621 mm). The term "braided sheath" may describe a conductive cover layer of braided strands of metal fibers, synthetic fibers, synthetic fibers coated with metal, and other suitable fibrous materials. The sizes of the braided fiber sheaths are not particularly limited and may, in various embodiments, have a diameter of about 0.016 cm (0.0062 in.) To about 6.35 cm (2.5 in.), a diameter of about 0.0254 cm (0.01 in.) to about 5.08 cm (2 in.), and a diameter of about 0.254 cm (0.1 in.) to about 2.54 cm ( 1 in.). In various embodiments, the diameter of a braided sheath may vary, e.g., because of beam branching. In various embodiments, a braided sheath can provide protection against electromagnetic interference ("EMI"), radio frequency interference ("RFI"), electromagnetic pulses ("EMI"), heat, vibration, friction and / or stress loads, such as tension or weight. Braided sheaths may have nickel-plated copper braided sheaths and / or metal-coated fibers ("MCFs"). A braided nickel copper sheath may comprise a braided structure which is braided from strands or nickel fibers coated with copper and / or alloys comprising one or more similar components. For example, in various embodiments, the braided sheath may be a metal coated fiber ("MCF") and a braided nickel composite copper braided sheath. In various embodiments, the braided sheaths can effectively protect an electrical conductor wire with respect to various frequencies, e.g. such as from about 0.1 MHz to about 40 GHz, from about 1 MHz to about 18 GHz, from about 15 MHz to about 500 MHz from about 30 MHz to about 100 MHz and frequencies of about 50 MHz and higher. The shielding efficiency may also vary in various embodiments, e.g., from about 0.1 db to about 95 db, from about 10 db to about 80 db, from about 25 db to about 70 db. . In various embodiments, the braided sheath may comprise a braided sheath of high strength. Various embodiments of high strength braided sheath can have tensile strengths across a range of ranges, such as from about 500 MPa to about 2000 MPa, from about 1000 MPa to about 1700 MPa, and from about 1200 MPa at about 1600 MPa.
[0005] As used herein the term "metal coated fiber" or "MCF" may include various fibers coated with one or more metals. In various embodiments, the metal-coated fibers may comprise the coating of a plurality of metals or their alloys, such as nickel, silver, gold, tin, aluminum, copper, cadmium, zinc and / or stainless steel.
[0006] The fibers of the metal-coated fibers may also comprise various thermoplastic fibers such as polymers including 4,6-diamino-1,3-benzenediol dihydrochloride. Examples of metal coated fibers include nickel-coated thermoplastic fibers (sold as Amber Strand Nickel Clad Fibers), silver coated thermoplastic fibers (sold as AmberStrand® Silver Clad Fibers), stainless steel microfilaments, and nickel plated stainless steel microfilaments (sold as ArmorLiteTM), all commercially available from Glenair®. Other examples of metal-coated fibers include metal-coated fibers incorporating aramid fibers (eg, Kevlar®, which is a registered trademark of "EI of Pont de Nemours and Company"), such as staple fibers. metal-coated aramids sold under the name Aracon®, which are commercially available from Micro-Coax, Incorporated, or carbon fibers. In various embodiments, the MCFs can be used to improve the low frequency protection performance and provide protection against lightning. In various embodiments, MCFs may also provide protection against environmental factors of the engine, such as temperature changes, high vibrations, liquids, chemical resistance, and may provide galvanic characteristics. The terms "resin" and "curable resin" may be used throughout this disclosure synonymously, and may describe the product that could impregnate a braided sheath and subsequently solidify. For example, the term "resin" may describe any liquid, natural or synthetic, that may harden. For example, a synthetic resin can take the form of a liquid such as the viscous liquid which can harden irreversibly after a curing procedure (e.g., thermosetting). Examples of the resin according to various embodiments include at least one of an epoxy resin, a polyurethane resin, a methacrylate resin, and mixtures thereof. The epoxy resin may include epoxy adhesives, such as single-component epoxy adhesive systems (eg, Aralidite® 204, which is commercially available from Huntsman Corporation) or two-component epoxy adhesive systems. An example of a two-pack epoxy adhesive system includes various epoxy resins and epoxy resin systems that can operate at temperatures up to about 260 ° C (about 500 ° F), such as Hysol® EA 9396 / C2 epoxy adhesive paste available commercially at Henkel Corporation.
[0007] Resin may harden in response to a curing process, e.g., in response to heat exposure, in response to exposure to UV light ("ultraviolet"), in response to exposure to a catalyst in response to the removal of a solvent, and various combinations thereof. A curing process initiates a chemical change in the resin to cause the curing and / or stiffness of the resin. For example, a curing process may include applying heat with, eg, a heat gun, an autoclave, a heat lamp, or a heating pad. Curing can also be done by applying a chemical agent to cause the hardening and / or rigidity of the resin. Hardening can also be achieved by exposing the resin to UV light. According to various embodiments, suitable one-component or two-component adhesive systems can be used and the type of adhesive is not particularly limited. Various embodiments may contain resins 7 with or without a reagent diluent. For example, suitable two-component adhesive systems may contain an epoxy resin with or without a one-component reagent diluent, and in another component may contain one or more curing agents, which upon mixing with the first component may cause hardening of the mixture. According to various embodiments, a suitable inert filler can be uniformly incorporated into one or both components. The filler can be non-sedimenting or easily dispersed target in any component in which it is incorporated. In various embodiments, suitable adhesive systems can cure under wet conditions, and bond to wet surfaces. Various characteristics such as uniformity, freezing time, filler content, epoxy equivalent, viscosity, absorption, bond strength, thermal compatibility, thermal defection temperature, linear coefficient of shrinkage, modulus and strength of compressive strength, tensile strength and elongation and contact force can be varied according to the characteristics desired by one skilled in the art. Suitable two-component epoxy adhesive systems include Hysol® EA 9396 / C2 epoxy paste commercially available from Henkel Corporation. Other suitable two-component epoxy adhesive systems include: Epibond® 100A / B, Epibond® 1217-A / B, Epibond® 420-AB, Epibond® 8543-C / B, Epibond® 1539-A / B, Epibond® 1534-A / B, Epibond® 1536A / B, Epibond® 104-A / B, Epibond® 1210-A / 96115A, Epibond 1210-A / B, Epibond® 156-A / B, Epibond "1559-1- A / B, Epibond® 1210-A / 9861, Epibond® 1565-AB, Aralidite® 2013, and Aralidite® 2015, all commercially available from Huntsman Corporation Suitable polyurethane adhesives in various embodiments include Uralane® 5754A. / B, Uralane® 5759 G / D and Uralanen 5774 A / C, all of which are commercially available from Huntsman Corporation Suitable methacrylate adhesives include Araldite® 2047-1, Araldite® 2048 and Araldite ® 2052-1, all of which are commercially available from Huntsman Corporation Suitable UV curing adhesives include Hysol UV3000, Hysol® UV3000LH and Hysol "UV3001, all of which are available c commercially at Henkel Corporation. The term "infused resin" may include a braided sheath to which a resin has been applied. The application of a resin to a braided sheath must sufficiently fill the holes between the fibers of a braided sheath to provide an increase in stiffness, strength or protection after submission to a cure process. For example, a braided sheath in which the resin is infused with a brush (eg brush), under vacuum (eg vacuum infiltration) or with external pressure (eg, using a heat-shrinkable tape or an autoclave) will be called an infused resin. For example, a brush application can be used to infuse a resin into a braided sheath. The resin can then be infused between the fiber holes of the braided sheath, providing improved rigidity and strength during curing. In other embodiments, the melting can be carried out under partial vacuum or partial vacuum in addition to the application of external pressure (eg, in an autoclave). A vacuum may comprise any reduced pressure (e.g., less than about 758 Torr (about 101 kPa) or less than about 600 Torr (about 80 kPa)). In various embodiments, a braided sheath infused with a resin may comprise a resin infused along the entire length of the braided sheath. The term "infused resin" may include a braided sheath in which at least a portion of the braided sheath is infused with a resin. In various embodiments, the outermost braided sheath can be infused with a resin. According to various embodiments, a resin-infused sheath may comprise a bundle wherein at least a first portion of the braided sheath comprises a first hardened resin providing stiffness at a first portion of the braided sheath and at least a second portion of the braided sheath. braided sheath that is foldable. A collapsible braided sheath can describe a braided sheath that is flexible or that can be twisted. A collapsible braided sheath may be resin-free (ie, not infused with resin) or may be at least partially infused with a resin. A collapsible foldable braided sheath which is at least partially infused with resin has not been subjected to a hardening process. Therefore, in such embodiments, the resin has not yet provided rigidity to the foldable braided sheath. A foldable braided sheath can allow the bundles to remain flexible so that during installation the final shape of the bundle can be adjusted to more closely match the installation and, in various embodiments, the uncured resin can then be be cured with a suitable curing process. In addition, a collapsible braided sheath can allow bundles to remain flexible, reducing packaging for shipping and reducing shipping costs. The second portion of the braided sheath may be disposed between a first portion of the braided sheath and a third portion of the braided sheath which includes a second cured resin according to various embodiments. The length of the second portion is not particularly limited and may be between about 5 and 50%, about 10 to about 45% or about 15 to about 25% of the total length of the electrical harness. In various embodiments, the second portion of the braided sheath may be disposed between the first portion of the braided sheath and an electrical connector. In various embodiments, the electrical harness may comprise a third portion of the braided sheath that is collapsible. In various embodiments, the first and second portions of a resin infused bundle may be cured with different resins (eg, a first cured resin and a second cured resin) or identical resins. In some embodiments, the second portion of the braided sheath may comprise an uncured resin. The term "cured" may include a resin or braided sheath infused with resin sufficiently hardened to substantially prevent deformation of the cured sheath by external forces (e.g., gravity). For example, in various embodiments, a cured portion of a braided sheath may be sufficiently rigid to prevent significant sagging between the clips that are spaced about 15.24 cm (6 inches) or more apart from each other. 30.48 cm (12 inches) or more, about 60.96 cm (24 inches) or more, about 42 inches (42.68 cm) or more, or about 152.4 cm (60 inches) or more. The term "significant subsidence" may include subsidence that could affect the safety or seaworthiness of a beam, eg, in a turbojet engine or in a nacelle. According to various embodiments, the resins can be cured through the application of heat, e.g. from a heat gun, a heat lamp or a heating pad, an oven , and an autoclave. Various resins (e.g., epoxy adhesives) may have different curing temperatures and curing times, so curing times and temperatures may vary widely. Examples of temperatures include temperatures from about 15.56 ° C (60 ° F) to about 260 ° C (about 500 ° F) about 37.78 ° C (about 100 ° F), about 160 ° C ° C (about 320 ° F), about 65.6 ° C (about 150 ° F), about 149 ° C (300 ° F), and about 121 ° C (about 250 ° F) about 129 ° C (265 ° F). The curing time can range from about 1 minute to about 3 days, from about 10 minutes about 7 hours, from about 35 minutes about 5 hours, and from about 2 hours to about 3 hours. The term "fiberglass" may include any fiberglass and may include glass fibers that are compatible with various resins (eg, polyester resins, vinyl ester resins, epoxy resins, bisphenol resins). maleimides ("BMI"), phenolic cyanate ester resins, polyetheretherketone ("PEEK") resins, polyetherimide resins ("PEI"), and liquid crystal polymer ("LCP") resins). Fiberglass may include all forms of yarns, including non-twisted yarns forming cakes, rovings and chopped fibers. In various embodiments, the fiberglass may conform to military standards such as MIL-R-60346, Type IV and MIL-Y-1140H. Examples of fiberglass include: e-glass, S-2 glass fiber® (a registered trademark of AGY Holding Corporation) and ZenTron® (also a registered trademark of AGY Holding Corporation). The term "heat-shrinkable material" may describe any suitable coating for the bundle that may shrink upon heating. Examples of heat-shrinkable material for various embodiments may include a heat shrinkable tube, a heat shrinkable sleeve, a heat shrinkable tape, heat shrinkable chests, and heat shrinkable package assemblies. In various embodiments, the heat-shrinkable material may comprise modified elastomeric or polyolefin materials. In various embodiments, these materials may have features that include at least one feature such as being soft, relatively thick (e.g., greater than about 1/8 in.), Relatively heat resistant (eg, at temperatures below 270 ° C (518 ° F), electrical insulation, improved aging resistance by oxygen, light or ozone, or improved resistance to chemical.
[0008] In various embodiments, the heat shrinkable material may be part of the bundle, such as a heat shrinkable chest and, in various embodiments, may be configured to shrink to attach to a trunk case of an electrical connector. In various embodiments, the heat shrinkable chest may be substantially straight or angled (e.g., at an angle of about 30 ° or greater, a year of about 45 ° or an angle of about 90 °) . Suitable heat-shrinkable chests include commercially available KTKK cable assemblies at TE Connectivity®'s IS-RAYFAST. In various embodiments, the heat-shrinkable material may be removed, such as heat-shrinkable tape. In various embodiments, the heat-shrinkable material may be placed in a braided sheath after application of a resin to form a resin-infused sheath. In various embodiments, by curing a resin-infused braided sheath partially covered with a heat-shrinkable material, a uniformly increased pressure may be applied to the braided sheath. Without being bound by any theory, it is believed that in various embodiments, narrowing of the heat-shrinkable material prior to curing the resin may help to more evenly infuse the resin into the braided sheath. With reference to FIG. 1, an electrical harness sheath construction is illustrated according to various embodiments. In various embodiments, the beam 100 may include two two-core shielded cables 102 and a single core shielded cable 110, and combinations thereof. Even if only the single-core or dual-core shielded cables are shown in FIG. 1, according to various embodiments, a beam may comprise any type of shielded cables (e.g., shielded 3-core cables, shielded 4-core cables, etc.). In various embodiments, the bundle 100, the glass fiber 108 may be in direct contact with the braided sheath layer 106. In various embodiments, the braided sheath layer 106 may be at least 12 partially infused with resin. The two dual-core shielded cables 102 and the single-core shielded cable 110 may comprise an electrically conductive wire 112, and a braided sheath layer 104. The braided sheath 104 may comprise, according to various embodiments, a braided sheath MCF or a braided copper sheath covered with nickel. In various embodiments, the two dual-core shielded cables 102 and the single-core shielded cable 110 may also include other layers, such as dielectric insulation layers 114, 116, 118, 120, and 122. Weaving Braided sheath is not particularly limited and in various embodiments it may include various types of weaving such as plain weaving, basket weaving, twill weaving and satin weaving. In various embodiments, the weave may be finer weave to provide improved coverage and thereby improve shielding (e.g., EMI shielding). Also, in various embodiments, thinner weaves providing improved coverage may permit the use of larger package diameters and smaller packages of wires. Without being bound by any theory, it is believed that thinner weavings can help protect against fenestration in response to beam bending, thereby providing better shielding. The braided sheaths are not particularly limited in shape and may take the form of a braided sock or may be woven on the wire harness from a roll of material. In various embodiments, the fibers may be woven from two or more coils, 3 or more coils or 4 or more coils. It will be understood that the number of reels may affect the weave density of a braided sheath and may be varied to achieve the desired densities or coverage. Examples of hedging may range, depending on various embodiments, from approximately 60% hedging to approximately 99.8% hedging, approximately 65% hedging to approximately 95% hedging, approximately 70% hedging about 85% coverage.
[0009] The braided sheaths disclosed herein are not particularly limited and may include braided copper sheaths coated with nickel and metal coated fibers. For example, with reference to FIG. 1, various embodiments of the beam 100 may comprise a braided sheath 104, which surrounds two shielded dual core cables 102. In various embodiments, the braided sheath 104 may comprise braided copper sheaths coated with nickel. In various embodiments, the braided sheath 104 may comprise an MCF.
[0010] With reference to FIG. 2, a braided sheath construction according to various embodiments is illustrated. In various embodiments, the beam 200 may comprise two cables, two shielded cores 102, and a single core shielded cable 110, and combinations thereof. In various embodiments, the braided sheath layer 106 may be in direct contact with a dielectric insulation layer 118 and the braided sheath layer 106 may be at least partially infused with resin. The two core shielded cables 102 and the single core shielded cable 110 may comprise an electrically conductive wire 112 and a braided sheath layer 104. The beam 200 does not include a fiberglass shield layer, such as the diaper fiberglass armor 108 (shown in FIG 1). In various embodiments, the shielded cables 102 and 110 may also include other layers, such as dielectric isolation layers 114, 116, 118, 120 and 122, and may also include a braided sheath 104. Even if only shielded 2-core and single-core cables are shown in FIG. 2, according to various embodiments, the beam 200 may comprise any number of shielded cables (e.g., shielded 3-core cables, shielded 4-core cables, etc.). With reference to FIGs. 3A and 3B, a view of an electrical connector 300, which may be bonded to a receptacle 350, is illustrated in various embodiments.
[0011] In various embodiments, the electrical connector 300 can enter a receptacle 350 through various grooves 306 and 354. In various embodiments, the electrical connector 300 may include a safety ring 310 that can contact the thread. 350. In various embodiments, the wires may be connected to the electrical connector 300 through the opening of the electrical connector 308. In various embodiments, the electrical connector 300, the security ring 310, and the receptacle 350 may be made of various materials, such as at least one of aluminum, stainless steel and alloys thereof. In various embodiments, the electrical connector 300 and receptacle 350 must conform to various industry and government standards and must be fully interchangeable and connectable with connectors that comply with such industry and government standards, such as EN2997. , the MIL-C-83723 III & ESC series connectors 10 and 15, and the 983 series connectors commercially available from DEUTSCH, the TE Connectivity® connection platform. With reference to FIG. 4, methods 400 for making electrical harness according to various embodiments are illustrated. The methods 400 may include laying the braided sheath to surround at least a portion of an electrical conductive wire illustrated as step 402 and infusing a resin into at least a portion of the braided sheath illustrated as the step 403. The heat curing of the resin (step 404) of the resin-infused braided sheath is performed to form a hardened braided sheath.
[0012] With reference to FIG. 5, methods 500 for making electrical harness according to various embodiments are illustrated. Methods 500 may include infusing the resin into at least a portion of a braided sheath (step 403). The braided, resin-infused sheath may, in various embodiments, be placed to surround a portion of the electrical lead (step 402). The resin may, in various embodiments, be heat cured to form a cured braided sheath (step 404). With reference to FIG. 6, methods 600 for making electrical harness according to various embodiments are illustrated. In various embodiments, the methods 600 may include placing a braided sheath around a portion of an electrical lead (step 602). In various embodiments, the electrical lead may be part of a shielded cable (eg, single-core shielded cable, shielded 2-core cable, shielded 3-core cable, etc.). Methods 600 may also include infusing the resin into at least a portion of a braided sheath (step 403). In various embodiments, the resin-infused braided sheath surrounding a portion of an electrical conductor wire may be only partially infused. The term "partially infused" may include a braided sheath in which at least a portion of the braided sheath is not infused with a resin. In various embodiments, not infusing the entire braided sheath, the shape of the braided sheath can be manipulated, e.g., during installation. But also, in various embodiments, not infusing the entire braided sheath can provide the desired benefits, such as improved packaging convenience for shipping. Methods 600 may also include heat curing the resin to form a cured braided sheath (step 404). In various embodiments, a cured braided sheath may be a braided sheath in which only a portion of the braided sheath is cured (e.g., portions of braided sheath infused with the resin). The methods 600 may therefore include placing the electrical harness in a predetermined position, such as in the area around a turboprop engine (step 608). In step 608, the clips or other support mechanism may be used to maintain the beam in a predetermined position. The non-infused portions of the bundle can remain flexible so that during installation the final shape of the bundle can be adjusted to more closely match the installation. According to various embodiments, at least a portion of the non-infused portions of the braided sheath can be infused with a resin (step 610). The infused resin of step 610 may be heat cured (eg, with a heat gun or heat lamp) (step 612) and may improve the overall hardness of the braided sheath. The resin is not particularly limited and may, in various embodiments, comprise at least one of a polyurethane resin and an epoxy resin. In various embodiments of step 612, the beam may be cured to be hard enough for there to be sufficient support for the beam to support its own weight without sagging. Thus, according to various embodiments, once the beam is cured, some of the clips, or other carrier materials, may be removed. In various embodiments, this may help prevent the braided sheath from sagging due to external forces (eg, gravity) that can induce sagging or other unwanted deformations of the braided sheath before or after the braided sheath is infused with the resin. Various methods of manufacturing electrical harnesses are disclosed herein. According to various embodiments, the methods of manufacturing an electrical harness include placing a braided sheath to surround at least a portion of an electrically conductive wire, infusing a resin into at least a portion of the wire. braided sheath and curing by heat to form a braided braided sheath, are disclosed. In various embodiments, the methods disclosed may also include placing a shielded fiberglass layer to at least partially surround the electrically conductive wire. The methods may also include, after heat curing, infusing a resin into a braided sheath according to various embodiments. Suitable methods include brew infusion, at least one partial vacuum, external pressure from a heat-shrinkable tape and external pressure from an autoclave. Various methods may also include methods in which the electrical lead is part of a shielded cable, and the braided sheath disposed around the shielded cable. In some embodiments, when a portion of the resin-infused braided sheath is non-infused with the resin, various methods may include placing an electrical harness at a predetermined position in the area around a turboprop engine and infusing a resin in at least a portion of the non-infused portion of the braided sheath infused with resin. The benefits, other benefits, and solutions to the problems have been described here in relation to the specific embodiments. In addition, the connection lines illustrated in the various figures of this document are intended to represent an example of functional relationships and / or physical couplings between the various elements. It should be noted that several functional or alternative or additional physical connections may be present in a practical system. However, the benefits, advantages, solutions to the problems and all the elements that enable the realization, or the improvement, of a benefit, a benefit or a solution should not be interpreted as being critical, necessary characteristics or essential, or elements of the embodiments encompassed by this disclosure. Likewise, the scope of the subject matter claimed in this disclosure should be limited only by the appended claims, in which the reference to an element in the singular does not mean "one and only one" except in the case of precision, but rather " one or more ". In addition, when a phrase such as "at least one of A, B or C" is used in the claims, it is contemplated that the sentence be interpreted to have the meaning that A alone may be present in a realization, B alone may be present in one embodiment, only C may be present in one embodiment, or that any combination of elements A, B and C may be present in a single embodiment; for example, A and B, A and C, B and C or A and B and C. Different hatches are used in the figures to indicate different parts but not necessarily to indicate the same material or different materials. Systems, methods and apparatus are described herein. In the detailed description given herein, references to "various embodiments", "an embodiment", "an exemplary embodiment", etc., indicate that the described embodiment may comprise a property, structure or particular feature, but not all embodiments necessarily have the particular property, structure, or feature. In addition, such sentences do not necessarily refer to the same embodiment. In addition, when a particular property, structure, or feature is described in relation to an embodiment, it is understood that a domain specialist has the ability to assign such a particular property, structure, or feature in relation to other embodiments, whether or not explicitly described. After reading the description, it will be obvious to a specialist of the relevant field (s) how to implement the disclosure in alternative embodiments. Furthermore, no element, component or process step of the present disclosure is intended for the public regardless of whether the element, component or process step is explicitly described in the claims.
[0013] No claim element described herein should be construed in accordance with the provisions of U.S.C. 112 (t) unless this element is expressly described using the phrase "means for". As used herein, the terms "comprises", "including" or any other variation thereof, are intended to cover a non-exclusive inclusion, so that a method, a method, that an article or an apparatus that includes a list of elements includes not only these elements but may include other elements that are not expressly listed or inherent to such a method, method, article or apparatus. 19
权利要求:
Claims (14)
[0001]
REVENDICATIONS1. An electrical harness (100; 200) comprising: an electrically conductive wire (112); and a braided sheath (106) surrounding a portion of the electrically conductive wire at least a portion of the braided sheath (106) being infused with a curable resin.
[0002]
The harness according to claim 1, further comprising a fiberglass shielding layer (108) at least partially surrounding the electrically conductive wire (112).
[0003]
The harness of claim 1 or claim 2, wherein the curable resin is at least one of a polyurethane resin, a methacrylate resin and an epoxy resin.
[0004]
The harness according to claim 1, 2 or 3, wherein the curable resin has been cured. 20
[0005]
An electrical harness according to any one of the preceding claims, wherein the braided sheath (106) is at least one of a metal-coated fiber braid sheath and a braided copper sheath coated with nickel.
[0006]
The harness according to any one of the preceding claims, wherein the braided sheath (106) comprises at least one fiber selected from a thermoplastic fiber, an aramid fiber, a carbon fiber, a stainless steel microfilament and a fiber in copper.
[0007]
The harness according to any one of the preceding claims, wherein the harness (100; 200) comprises a plurality of shielded cables (102, 110) and the braided sheath (106) infused with the hardenable resin surrounds the plurality of cables. shielded (102, 110).
[0008]
An electrical harness (100; 200) comprising: an electrically conductive wire (112); and a braided sheath (106) surrounding a portion of the electrically conductive wire (112), wherein at least a portion of the braided sheath ( 106) comprises a first cured resin providing rigidity to the first portion of the braided sheath (106) and at least a second portion of the braided sheath (106) which is collapsible.
[0009]
The harness according to claim 8, wherein the second portion of the braided sheath (106) is placed between the first portion of the braided sheath (106) and a third portion of the braided sheath (106) which includes a second resin hardened. 15
[0010]
The harness according to claim 9, wherein the first cured resin and the second cured resin are different.
[0011]
The harness according to claim 9, wherein the first cured resin and the second cured resin are the same.
[0012]
The harness according to claim 8, wherein the harness (100; 200) comprises a third braided sheath portion (106) which is collapsible. 25
[0013]
The harness according to any of claims 8 to 12, wherein the second portion of the braided sheath (106) is positioned between the first portion of the braided sheath and an electrical connector (300).
[0014]
14. The harness according to any one of claims 8 to 13, wherein the second portion comprises between about 5 to 50% of the total length of the electrical harness (100; 200). 21. The harness of any one of claims 8 to 14, wherein the second portion of the braided sheath (106) comprises an uncured curable resin. 22
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同族专利:
公开号 | 公开日
FR3015105B1|2018-07-06|
US20150170790A1|2015-06-18|
US9466404B2|2016-10-11|
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法律状态:
2015-11-23| PLFP| Fee payment|Year of fee payment: 2 |
2016-11-21| PLFP| Fee payment|Year of fee payment: 3 |
2017-06-16| PLSC| Publication of the preliminary search report|Effective date: 20170616 |
2017-11-21| PLFP| Fee payment|Year of fee payment: 4 |
2019-11-20| PLFP| Fee payment|Year of fee payment: 6 |
2020-11-20| PLFP| Fee payment|Year of fee payment: 7 |
2021-11-18| PLFP| Fee payment|Year of fee payment: 8 |
优先权:
申请号 | 申请日 | 专利标题
US14/106,255|US9466404B2|2013-12-13|2013-12-13|Rigid/pliable sectional resin infused shielded wire harness|
US14106255|2013-12-13|
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