WO2014034665A1 - 電磁シールド管 - Google Patents
電磁シールド管 Download PDFInfo
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- WO2014034665A1 WO2014034665A1 PCT/JP2013/072876 JP2013072876W WO2014034665A1 WO 2014034665 A1 WO2014034665 A1 WO 2014034665A1 JP 2013072876 W JP2013072876 W JP 2013072876W WO 2014034665 A1 WO2014034665 A1 WO 2014034665A1
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- Prior art keywords
- layer
- metal layer
- metal
- outer layer
- resin
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 150
- 239000002184 metal Substances 0.000 claims abstract description 150
- 229920005989 resin Polymers 0.000 claims abstract description 61
- 239000011347 resin Substances 0.000 claims abstract description 61
- 238000003466 welding Methods 0.000 claims description 13
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- 239000002131 composite material Substances 0.000 claims description 3
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
-
- 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
- H05K9/0084—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a single continuous metallic layer on an electrically insulating supporting structure, e.g. metal foil, film, plating coating, electro-deposition, vapour-deposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0412—Heat or fire protective means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
-
- 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
- H05K9/0098—Shielding materials for shielding electrical cables
Definitions
- the present invention relates to an electromagnetic shield tube used in an electric vehicle through which an electric wire is passed.
- a protective tube there is a metal tube which is made of metal and has an outermost layer as a stainless steel layer and another layer made of iron for improving durability (Patent Document 1).
- JP 2007-81158 A Japanese Patent Laid-Open No. 9-298382
- the metal tube as in Patent Document 1 has a problem of weight because it is made of metal. If the thickness of the metal tube is reduced as a countermeasure, the bent portion is crushed and flattened when bent, making it difficult to secure a predetermined inner diameter. Further, since a certain thickness is required, a large processing machine is required for bending. For this reason, it cannot necessarily be said that the workability to a product shape is good.
- an electromagnetic shield tube is often disposed at the lower part of the vehicle, and corrosion resistance against water wetting and trauma resistance against stone splash are necessary.
- the metal tube described above may be easily formed into a dent when an impact is applied to the outer surface by a stone splash or the like.
- stainless steel when stainless steel is used like patent document 1, it will become expensive.
- such a protective tube has a risk of moisture adhering not only from outside but also from inside due to condensation. For this reason, even if the stainless steel layer is formed only on the outermost layer, the problem of corrosion is not completely solved.
- the method of attaching a metal layer to a resin corrugated tube by plating has problems such as peeling of plating and corrosion of plating.
- a resin corrugated tube is usually flexible. For this reason, when fixing the corrugated pipe to the vehicle, it is necessary to fix the predetermined portion while arranging the corrugated pipe at a predetermined position of the vehicle and adjusting the position. For this reason, many fixing parts are required and the workability of laying and fixing the corrugated pipe to the vehicle is inferior.
- the present invention has been made in view of such problems, and according to the present invention, corrosion, surface dents, and the like are unlikely to occur, and has high shielding properties and shape retention, and has excellent laying workability.
- An object is to provide a shield tube.
- the present invention provides an electromagnetic shield tube for an electric vehicle through which an electric wire can be inserted.
- a resin outer layer formed on an outer periphery of the layer, and the electromagnetic shield tube is a composite tube in which the inner layer, the metal layer, and the outer layer are laminated, and the metal layer and the outer layer
- the electromagnetic shield tube is characterized in that the bonding strength between the inner layer and the metal layer is stronger than the bonding strength.
- the band-shaped member is formed into a cylindrical shape, the ends of the band-shaped member are butted together, and the butted part is joined by welding.
- the resin constituting the outer layer is cross-linked.
- the thickness of the inner layer is preferably thicker than the thickness of the outer layer.
- the metal layer is formed inside, it is possible to exert a shielding property against the electric wire inserted through the inside. Moreover, since the inner and outer layers are made of resin and the metal layer is formed as an intermediate layer, the metal layer is not exposed on the inner and outer surfaces of the electromagnetic shield tube, and the electromagnetic shield tube is not corroded.
- the bonding strength of the present invention includes not only the case of bonding by an adhesive but also the case of bonding by fusion or the like.
- the resin layer has a heat insulating property, it is difficult for condensation to occur in the pipe, and there is no problem such as insulation breakdown of the internal electric wire due to the condensed water.
- the metal layer may have a minimum thickness for ensuring shielding properties, shape retention and durability. For this reason, compared with the case where the whole is made into a metal layer, a bending process is easy. Therefore, it is possible to perform bending using a simple device such as manual processing or a small manual bender without using a large hydraulic bender used for bending metal pipes.
- the shape is maintained as a whole (when the composite tube is bent, the bent shape is maintained and the tube is made plastic. It will not return to its original shape unless an external force sufficient to deform is applied. For this reason, it is possible to process a shape beforehand according to the fixed layout to a vehicle. Therefore, the laying workability of the electromagnetic shield tube is excellent.
- the resin layer is provided on the inner and outer layers side of the metal layer, the metal layer is not crushed and flattened in the bent portion. Moreover, since it consists of substantially resin as a whole, weight reduction can be achieved compared with what comprises the whole with a metal. In particular, by making the thickness of the metal layer the smallest and making the inner layer the thickest, the effects as described above can be obtained more reliably. Further, since the inner layer is thick, the roundness of the resin pipe by the inner layer can be increased during manufacturing.
- the metal layer will not be dented by the elastic resin outer layer.
- the adhesion between the outer layer and the metal layer can be enhanced by crosslinking the outer layer. If the outer layer and the metal layer are bonded together by bonding or the like, it is difficult to peel the outer layer in the end processing of the shield tube. On the other hand, if the outer layer and the metal layer are not completely adhered to each other and a gap is formed, the metal layer may be flattened. For this reason, by cross-linking the outer layer, flattening of the metal layer can be suppressed while securing the peelability between the outer layer and the metal layer.
- the thickness change of the circumferential direction of a metal layer can be made small by butt-welding a strip
- an electromagnetic shield tube that is unlikely to cause corrosion or surface dents, has high shielding properties and shape retention, and is excellent in laying workability.
- FIG. 2 (a) is a perspective view
- FIG.2 (b) is sectional drawing.
- FIG. 7A shows the electromagnetic shield tube 3a
- FIG. 7B shows the electromagnetic shield tube 3b.
- FIG. 1 is a diagram showing a shielded cable 1.
- the shielded cable 1 is mainly composed of an electromagnetic shield tube 3, a terminal 7, an electric wire 9, and the like.
- Terminals 7 are connected to both ends of the wire 9 that is a covered wire.
- FIG. 2 is a view showing the electromagnetic shield tube 3
- FIG. 2 (a) is a perspective view
- FIG. 2 (b) is a cross-sectional view.
- the electromagnetic shield tube 3 has a resin inner layer 11 formed in the innermost layer, a resin outer layer 15 formed in the outermost layer, and a metal metal layer 13 formed between the inner layer 11 and the outer layer 15.
- the resin constituting the inner layer 11 and the outer layer 15 may be the same resin or different resins.
- it can be selected from polyolefin resins such as polypropylene and polyethylene, and thermoplastic resins such as polyamide and polybutylene terephthalate.
- the resin may be crosslinked or modified.
- it may be cross-linked to improve heat resistance, or may be modified with maleic acid to improve adhesiveness.
- flame retardants such as halogen-based, phosphorus-based and metal hydrates may be added, and titanium oxide or the like may be added to improve weather resistance.
- the metal layer 13 may be made of copper or iron as long as the shielding effect can be obtained, but it is desirable to use aluminum (including an aluminum alloy) in view of weight reduction and cost.
- At least one of the inner layer 11 and the outer layer 15 is formed thicker than the metal layer 13.
- both the inner layer 11 and the outer layer 15 can be made thicker than the metal layer 13.
- the thickness of the metal layer 13 can obtain necessary shield characteristics, and when the electromagnetic shield tube 3 formed with the inner layer 11 and the outer layer 15 is bent, the rigidity of the metal layer 13 in the bent state is The inner layer 11 and the outer layer 15 are set to be larger than the restoring force for returning to the original state. That is, when the electromagnetic shield tube 3 is bent, the inner metal layer 13 is plastically deformed, and the inner layer 11 and the outer layer 15 are elastically deformed by their own flexibility. On the other hand, if the rigidity of the metal layer 13 in the bent state is larger than the restoring force associated with the elastic deformation of the inner layer 11 and the outer layer 15, the electromagnetic shield tube 3 maintains the shape in the bent state. Can do.
- the thickness of the metal layer 13 is preferably 0.07 mm or more.
- the elastic deformation region for example, 0.2% proof stress or less in the case of aluminum
- the stress generated in the metal layer 13 varies depending on the difference between the linear expansion coefficients of the inner layer 11 and the outer layer 15, the use environment, the thickness of each, and the like.
- the thickness of the metal layer 13 is desirably 0.15 mm or more.
- the thickness of the outer layer 15 is desirable to set in consideration of the resistance to trauma.
- the outer layer 15 serves as a protective layer so that the metal layer 13 is not damaged by stone splashes or the like.
- the thickness is desirably 0.5 mm or more. This is because if the thickness is less than 0.5 mm, the outer layer 15 may be damaged by stone splash or the like, and the internal metal layer 13 may be damaged.
- FIG. 3 is a schematic view showing the shield tube manufacturing apparatus 30. In addition, illustration of a cutting machine and a cooling machine is omitted.
- the resin pipe used as the inner layer 11 is manufactured by an extrusion process by the inner layer extruder 31. Since the resin tube which becomes the inner layer 11 contracts during cooling after extrusion, the resin tube is constant in diameter by the vacuum constant diameter machine 32.
- the vacuum constant diameter machine 32 for example, exhausts from the outer surface side in a state where the resin tube is sandwiched in the mold, so that the resin tube is pressed against the inner peripheral surface of the mold and suppresses shrinkage of the outer diameter.
- an adhesive may be applied to the outer periphery of the resin pipe using the adhesive application device 34.
- the outer diameter measuring device 36 is, for example, a laser measuring device. If the outer diameter of the resin tube is within a predetermined range by the outer diameter measuring device 36, the production is continued as it is. On the other hand, when the outer diameter of the resin pipe deviates from a predetermined range by the outer diameter measuring device 36, the mold size of the vacuum constant diameter machine 32 is changed.
- the forming layer 35 is formed by the forming machine 35, and the inner layer is partially wrapped. It is made into a feed cylinder shape on the outer periphery of 11 resin pipes. Further, the lap portion of the belt-shaped member is welded by the welding machine 37. Thus, the metal layer 13 is formed on the outer periphery of the resin tube of the inner layer 11.
- the outer layer resin is extruded and coated on the outer periphery of the metal layer 13 by the outer layer extruder 39 to complete the electromagnetic shield tube 3.
- the outer layer 15 is cross-linked by the cross-linking portion 41 as necessary.
- crosslinking part 41 can bridge
- the inner layer 11 can be crosslinked simultaneously, but only the outer layer 15 can be crosslinked. By doing in this way, the inner layer 11 can be made non-crosslinked and only the outer layer 15 can be crosslinked.
- the adhesion between the outer layer 15 and the metal layer 13 can be improved. For this reason, flattening of the metal layer 13 can be suppressed while ensuring the peelability between the outer layer 15 and the metal layer 13.
- a wrap portion 17 is formed on a part of the metal layer 13 as shown in FIG.
- the wrap part 17 is pressed from the outside when the outer layer 15 is covered, the end parts of the band-shaped member of the wrap part are in reliable contact with each other. Therefore, in the cross section shown in the figure, no gap is formed in the metal layer 13 forming the shield layer.
- the wrap portion 17 is joined to at least a part of the wrap portion 17 by butt welding, ultrasonic welding, or the like by the welding machine 37 before covering with the outer layer 15.
- a part of the wrap portion 17 may be brought into direct contact and the other part may be bonded with an adhesive.
- butt welding may be performed as shown in FIGS. 4A and 4B without forming the wrap portion 17.
- the belt-shaped member may be formed into a cylindrical shape, the end portions (butting portion 18) of the band-shaped member are butted together, and the butting portion 18 may be joined by welding with the welding machine 37. Even in this case, since the metal layer 13 is continuous in the circumferential direction, the shielding property can be ensured reliably.
- the outer diameter of the resin pipe is managed by the outer diameter measuring device 36. For this reason, when a metal thin plate is faced
- the resin tube also has a slight outer diameter contraction after passing through the outer diameter measuring device 36 described above and before the metal thin plate is formed on the outer periphery. Therefore, in the present invention, the shrinkage amount of the outer diameter of the resin pipe between the outer diameter measuring device 36 and the forming machine 35 is measured in advance, and the outer diameter is smaller than the optimum outer diameter of the resin pipe at the time of forming.
- the outer diameter that is determined to be acceptable by the measuring device 36 is set larger by the amount of contraction. Thereby, the metal layer 13 and the resin pipe
- an electromagnetic shield tube for example, an inner diameter of 22.4 mm, the thickness of the inner layer 11 is 0.6 mm, the thickness of the metal layer 13 is 0.2 mm, the thickness of the outer layer 15 is 0.5 mm, and the outer diameter is 25 mm.
- an electromagnetic shield tube 3 in which the inner layer 11 and the outer layer 15 are made of polypropylene and the metal layer 13 is made of aluminum can be easily bent by a manual vendor.
- an adhesive layer or the like may be provided between the inner layer 11 and the metal layer 13 or between the metal layer 13 and the outer layer 15.
- the metal layer formed on the outer periphery of the inner layer is not necessarily limited to the direct contact between the inner layer 11 and the metal layer 13, and another layer is provided between the inner layer 11 and the metal layer 13. The case where is formed is also included.
- the resin outer layer formed on the outer periphery of the metal layer is not limited to the direct contact between the metal layer 13 and the outer layer 15, and another layer is provided between the metal layer 13 and the outer layer 15. The case where it is formed is also included.
- the outer layer 15 and the metal layer 13 it is desirable to weaken the bonding strength between the outer layer 15 and the metal layer 13 with respect to the bonding strength between the inner layer 11 and the metal layer 13.
- an adhesive layer is provided between the inner layer 11 and the metal layer 13
- the outer layer 15 is directly coated on the metal layer 13 by extrusion coating without providing an adhesive layer or the like between the outer layer 15 and the metal layer 13.
- the inner layer 11 needs to be bonded because the influence of strain due to the difference in linear expansion coefficient with the metal layer 13 is large, but the outer layer 15 needs to be bonded because the influence of strain is less than that of the inner layer 11. Absent.
- the surface roughness of the surface of the metal layer 13 facing the inner layer 11 is reduced with respect to the outer layer 15. You may make it rougher than the surface roughness of an opposing surface. Further, as the resin of the inner layer 11, a resin having higher adhesiveness with the metal layer 13 than the resin of the outer layer 15 may be selected.
- FIG. 5A is a diagram illustrating a shielded cable laying structure
- FIG. 5B is a cross-sectional view of the shielded cable 1.
- the form of the shielded cable to be laid is not limited to the illustrated example.
- the shielded cable 1 is laid in a predetermined layout, for example, at the lower part of an automobile, and fixed to the vehicle body at predetermined intervals. At this time, a predetermined portion of the shielded cable 1 is bent in advance with a predetermined curvature and partially fixed to the vehicle by the fixing member 19.
- a bent part is not necessarily limited to the bending form as illustrated, and a bending angle and a bending radius are appropriately set according to the layout.
- a high-voltage electric wire 9 is inserted in the shielded cable 1, for example.
- a high-voltage electric wire 9 is inserted in the illustrated example.
- an example in which two electric wires 9 are inserted is shown, but the present invention is not limited to this.
- shielded cable laying structure for example, two 8 mm-diameter electric wires 9 are inserted into the above-described shielded cable (inner diameter 22.4 mm), one end (terminal) is connected to an inverter (not shown), and the other Is connected to a motor (not shown) or the like.
- the metal layer 13 is electrically connected to a conductive shield case (not shown) in which the inverter is accommodated.
- the metal layer 13 since the metal layer 13 is provided in the intermediate layer, it has a shielding property. In addition, since the inner layer 11, the metal layer 13, and the outer layer 15 are integrally formed, their axial positions are not displaced and the inner metal layer 13 does not fall off.
- the bonding strength between the outer layer 15 and the metal layer 13 is weak, only the outer layer 15 can be easily peeled off. Therefore, it is possible to easily connect to the terminal 7 by peeling only the outer layer 15 near the end of the electromagnetic shield tube 3.
- the metal layer 13 is 0.15 mm or more, necessary shield characteristics can be secured, and repeated plastic deformation can be prevented from occurring due to stress accompanying temperature change. Therefore, a highly durable electromagnetic shield tube can be obtained.
- the thickness of the outer layer 15 is 0.5 mm or more, it is possible to prevent the internal metal layer 13 from being damaged by stone splashes or the like when used in an electric vehicle.
- the rigidity of the metal layer 13 is larger than the restoring force accompanying the elastic deformation of the inner layer 11 and the outer layer 15 which are other layers, the bent shape can be maintained during the bending process.
- the metal layer 13 is thinner than a conventional metal tube, processing is easy. Therefore, by bending in advance according to the laying shape of the shielded cable, the laying workability of the shielded cable (electromagnetic shield tube) is excellent, and the number of the fixing members 19 used for the vehicle is the same as the conventional flexible tube. This can be reduced compared to the case.
- the electromagnetic shield tube 3 is not corroded due to adhesion of water from the outside, water intrusion to the inside, dew condensation, or the like. Moreover, since the inner layer 11 and the outer layer 15 have a heat insulation effect, internal condensation can be prevented.
- the inner layer 11 and the outer layer 15 thicker than the metal layer 13, it is possible to prevent the metal layer 13 from being flattened (buckled) at the bent portion when the electromagnetic shield tube 3 is bent. .
- the metal layer 13 is composed of a strip-shaped member, the electromagnetic shield tube 3 can be easily manufactured.
- the wrap portion or the butting portion is formed, and the end portions of the belt-shaped member are in contact with each other at the wrap portion or the butting portion, so that the shielding property can be ensured.
- FIG. 6 is a diagram showing another laying structure of the shielded cable 1.
- components having the same functions as those shown in FIGS. 1 to 5 are denoted by the same reference numerals as in FIGS. 1 to 5, and redundant description is omitted.
- the outer tube 21 is, for example, a resin corrugated tube.
- the outer tube 21 is used to protect the shielded cable 1 from the outside. By doing in this way, the electromagnetic shielding pipe
- FIG. 7A is a view showing the electromagnetic shield tube 3a in which the inner layer 11 is made thinner and the outer layer 15 is made thicker.
- the electromagnetic shield tube 3a it has extremely high damage resistance. That is, even when a stone or the like collides from the outside, the outer layer 15 is sufficiently thick, so that the metal layer 13 is not damaged. Further, it is possible to prevent the cross section from being flattened when the electromagnetic shield tube 3a is bent.
- the electromagnetic shield tube 3 since the electromagnetic shield tube 3 has a long distance from the outer periphery to the metal layer 13, even when water penetrates into the resin from the outside, the metal layer 13 can be further prevented from corroding. If the inner layer 11 does not affect the shape retainability and the like, the metal layer 13 is not exposed even if the inner layer 11 is thinned, so that an effect on corrosion resistance and the like can be obtained.
- an electromagnetic shield tube 3b having a thick inner layer 11 and a thin outer layer 15 may be used. According to the electromagnetic shield tube 3b, it is possible to more reliably prevent the bent portion from being flattened by bending the metal layer 13. Therefore, the inner diameter at the bent portion is not reduced. Therefore, the inner diameter is not reduced even at the bent portion, and the wire insertion workability is excellent.
- the electromagnetic shield tube 3b has a thin outer layer 15, as described above, even when an additive or a pigment is added only to the outer layer, the amount of resin constituting the outer layer can be reduced. The amount of additives and pigments used can be reduced. If the outer layer 15 does not affect the shape retention and the damage resistance, the metal layer 13 is not exposed even if the outer layer 15 is thinned, so that an effect on the corrosion resistance and the like can be obtained.
- the resin tube by the inner layer 11 is thick, so that the roundness of the resin tube can be increased.
- the outer layer 15 is thin, it is easy to crosslink the outer layer 15. In this case, an inner diameter of 21.5 mm, an inner layer 11 of 0.95 mm, a metal layer 13 of 0.45 mm, an outer layer 15 of 0.6 mm and an outer diameter of 25.5 mm can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Insulated Conductors (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
3、3a、3b………電磁シールド管
7………端子
9………電線
11………内層
13………金属層
15………外層
17………ラップ部
18………突合せ部
19………固定部材
21………外管
30………シールド管製造装置
31………内層押出機
32………真空定径機
33………帯状部材供給部
34………接着剤塗布装置
35………フォーミング加工機
36………外径測定器
37………溶接機
39………外層押出機
41………架橋部
Claims (5)
- 内部に電線を挿通可能な電気自動車用の電磁シールド管であって、
樹脂製の内層と、
前記内層の外周に形成される金属層と、
前記金属層の外周に形成される樹脂製の外層と、
を具備し、
前記電磁シールド管は、前記内層と前記金属層と前記外層とが積層される複合管であり、
前記金属層と前記外層との接合強度よりも前記内層と前記金属層との接合強度の方が強いことを特徴とする電磁シールド管。 - 前記内層と前記金属層のみが接着剤により接着され、前記金属層と前記外層とは接着されていないことを特徴とする請求項1記載の電磁シールド管。
- 前記金属層は、帯状部材が筒状に成形され、帯状部材の端部同士が突き合わされ、突き合わせ部が溶接により接合されることを特徴とする請求項1記載の電磁シールド管。
- 前記外層を構成する樹脂は架橋されていることを特徴とする請求項1記載の電磁シールド管。
- 前記内層の厚みは、前記外層の厚みよりも厚いことを特徴とする請求項1記載の電磁シールド管。
Priority Applications (4)
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KR1020157004818A KR102094565B1 (ko) | 2012-08-27 | 2013-08-27 | 전자 실드관 |
CN201380044605.4A CN104584709B (zh) | 2012-08-27 | 2013-08-27 | 电磁屏蔽管 |
JP2014523132A JP5697064B2 (ja) | 2012-08-27 | 2013-08-27 | 電磁シールド管 |
US14/633,038 US9968017B2 (en) | 2012-08-27 | 2015-02-26 | Electromagnetic shielding tube |
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JP2012-186510 | 2012-08-27 | ||
JP2012186510 | 2012-08-27 |
Related Child Applications (1)
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US14/633,038 Continuation US9968017B2 (en) | 2012-08-27 | 2015-02-26 | Electromagnetic shielding tube |
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WO2014034665A1 true WO2014034665A1 (ja) | 2014-03-06 |
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PCT/JP2013/072876 WO2014034665A1 (ja) | 2012-08-27 | 2013-08-27 | 電磁シールド管 |
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US (1) | US9968017B2 (ja) |
JP (1) | JP5697064B2 (ja) |
KR (1) | KR102094565B1 (ja) |
CN (1) | CN104584709B (ja) |
WO (1) | WO2014034665A1 (ja) |
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Also Published As
Publication number | Publication date |
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JP5697064B2 (ja) | 2015-04-08 |
CN104584709A (zh) | 2015-04-29 |
KR102094565B1 (ko) | 2020-03-27 |
CN104584709B (zh) | 2018-04-06 |
US20150237770A1 (en) | 2015-08-20 |
KR20150048130A (ko) | 2015-05-06 |
JPWO2014034665A1 (ja) | 2016-08-08 |
US9968017B2 (en) | 2018-05-08 |
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