WO2016052150A1 - Faisceau de câbles ayant un matériau absorbant le son - Google Patents

Faisceau de câbles ayant un matériau absorbant le son Download PDF

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Publication number
WO2016052150A1
WO2016052150A1 PCT/JP2015/075957 JP2015075957W WO2016052150A1 WO 2016052150 A1 WO2016052150 A1 WO 2016052150A1 JP 2015075957 W JP2015075957 W JP 2015075957W WO 2016052150 A1 WO2016052150 A1 WO 2016052150A1
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WO
WIPO (PCT)
Prior art keywords
sound absorbing
wire harness
absorbing material
sound
nonwoven fabric
Prior art date
Application number
PCT/JP2015/075957
Other languages
English (en)
Japanese (ja)
Inventor
高田　裕
小次郎 鈴木
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2016052150A1 publication Critical patent/WO2016052150A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • 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

Definitions

  • the present invention relates to a wire harness with a sound absorbing material in which a sound absorbing material using a nonwoven fabric and a wire harness are integrated.
  • a sound insulating material made of glass wool, rock wool, porous ceramic, urethane foam, waste cotton, etc.
  • a sound absorbing material was provided.
  • nonwoven fabrics are now widely used for these sound insulation materials and sound absorption materials. .
  • a wire harness is a structure in which a plurality of electric wires are pre-assembled into a form necessary for wiring. After performing necessary branching, attaching a connector to a terminal, etc., various types such as a tape shape, a tube shape or a sheet shape are used. It is formed by winding a wire harness protective material having a shape around the outer periphery of an electric wire bundle.
  • a wire harness mounted on an automobile is routed in the vehicle to electrically connect various electrical components including the above-mentioned noise generating device. May cause noise. Therefore, the outer periphery of the wire harness may be provided with a cushioning material for suppressing noise due to contact with other members or the like.
  • the wire harness and the sound absorbing material are usually assembled in the vehicle as separate parts.
  • the sound absorbing material made of non-woven fabric also has a function as a cushioning material for the wire harness, and as a method of integrating and assembling such a sound absorbing material and the wire harness, a structure in which the wire harness is sandwiched between two sound absorbing materials, A configuration in which a single sound absorbing material is wound around a wire harness and fixed can be considered.
  • the problem to be solved by the present invention is to provide a wire harness with a sound absorbing material in which the sound absorbing material is fixed to the wire harness without deteriorating its sound absorbing performance.
  • a wire harness with a sound absorbing material is the wire harness and the sound absorbing material in a state where at least a part of the wire harness in the axial direction is covered with one or more sound absorbing materials.
  • a wire harness with a sound absorbing material wherein the sound absorbing material is made of non-woven fabric, the sound absorbing material is at least partially overlapped in the thickness direction, and the overlapped portions are connected by a fixing member.
  • the fixing member has a shaft portion that penetrates the overlapped portion in the thickness direction, and the axial length of the shaft portion is 5 mm or more.
  • a locking portion extending in a radial direction of the shaft portion is provided at both ends of the shaft portion.
  • the fixing member is preferably a resin tag pin.
  • the sound absorbing material is formed by laminating a skin material nonwoven fabric and a base material nonwoven fabric having a larger basis weight than the skin material nonwoven fabric, and at least a part of the wire harness includes the two sound absorbing materials. It is preferable that the two sound absorbing materials are covered with the sound absorbing material by being sandwiched between them, and the two sound absorbing materials have the same thickness direction.
  • the sound absorbing material can be fixed to the wire harness without deteriorating its sound absorbing performance.
  • FIG. 1 is an external perspective view showing a wire harness 1 with a sound absorbing material in the present embodiment.
  • the wire harness with a sound absorbing material of the present invention can be suitably used as a sound absorbing material for a vehicle such as an automobile, and is disposed in the interior of a dashboard of a car or in an interior space of a door. The noise that intrudes into the passenger compartment from the space that generates noise is blocked.
  • the wire harness with sound absorbing material 1 is integrated in a state where a part of the wire harness 9 in the axial direction is sandwiched between sound absorbing materials 21 and 22 which are two sound absorbing materials. These sound absorbing materials 21 and 22 are overlapped in the thickness direction, and the end portions of the overlapped portions are fixed to the wire harness 9 by being connected by tag pins 3 that are fixing members.
  • Examples of the wire harness 9 include a bundle of a plurality of electric wires whose core wire is covered with an insulator, and a wire harness 9 that is composed of only one electric wire.
  • the tag pin 3 is a resin binder that is widely distributed in general. As shown in FIG. 2, the tag pin 3 has a shaft portion 31 that penetrates the ends of the sound absorbing materials 21 and 22 in the thickness direction. Locking portions 32 extending on both sides in the radial direction are provided at both ends of the shaft portion 31, and the sound absorbing materials 21 and 22 are clamped by the two locking portions 32, thereby restricting movement in the thickness direction. ing.
  • the tag pin 3 in this embodiment has a shaft portion with a length of 5 mm or more. Since the shaft portion 31 of the tag pin 3 has such a length that the thickness of the sound absorbing materials 21 and 22 is not greatly reduced, that is, the sound absorbing performance of the sound absorbing materials 21 and 22 is not impaired. Both the maintenance of sound absorption performance and strong connection are achieved.
  • the sound absorbing materials 21 and 22 exhibit better sound absorbing performance when a slight gap (air layer) is provided than when these facing surfaces are in close contact.
  • the sound absorbing materials 21 and 22 can be separated by the surplus, for example, the wire harness 9 is inserted through them.
  • the sound absorbing material is pressed in the separation direction, an air layer is easily formed between the sound absorbing materials.
  • the tag pins 3 are attached to a total of six locations in the longitudinal center at the four corners of the sound absorbing materials 21 and 22 and the ends in the direction orthogonal to the axial direction of the wire harness 9.
  • the attachment location and the attachment interval of the tag pins 3 are not limited to the aspect of the present embodiment, and can be appropriately adjusted according to the size of the sound absorbing material and the required fixing force.
  • the tag pin is adopted as the fixing member in the present embodiment, it can be obtained at low cost because the tag pin is widely distributed, and it can be efficiently attached to the sound absorbing material using the tag gun.
  • the fixing member is not necessarily limited to the tag pin.
  • Other fixing members include, for example, a metal wire-like member penetrating in the thickness direction of the sound-absorbing material and bent at its end (FIG. 3A), or a thin shaft bolt-like member The end part of which is made by inserting a nut-like member into the end part (FIG. 3 (b)) or a resinous thread-like binding tool called a loop lock or a thread loop.
  • a concatenated one (FIG. 3C) is conceivable.
  • any member having an elongated shaft portion and capable of connecting the sound absorbing materials without greatly reducing the thickness of the sound absorbing material can be employed as the fixing member.
  • the sound absorbing material 21 is a nonwoven fabric laminated body in which a skin material nonwoven fabric 211 and a base material nonwoven fabric 212 having a larger basis weight than the skin material nonwoven fabric 211 are laminated.
  • the sound absorbing material 22 is also a skin material nonwoven fabric 221 and the skin material.
  • This is a nonwoven fabric laminate in which a base nonwoven fabric 222 having a larger basis weight than the nonwoven fabric 221 is laminated.
  • the skin material nonwoven fabric and the base material nonwoven fabric have different characteristics regarding absorption and reflection of sound due to different basis weights, and by laminating them, it is possible to absorb sound in a wide frequency band.
  • the skin material nonwoven fabrics 211 and 221 in this embodiment are laminated
  • the sound absorbing materials 21 and 22 serve not only as a sound absorbing material but also as a cushioning material for the wire harness 9 by covering a part of the wire harness 9 and covering it.
  • the sound absorbing materials 21 and 22 in the present embodiment have the same thickness direction, and the skin material nonwoven fabrics 211 and 221 are oriented in the same direction.
  • the skin material nonwoven fabrics 211 and 221 are preferably directed to the noise source side for sound absorption effect.
  • the skin material nonwoven fabric and the substrate nonwoven fabric constituting the sound absorbing materials 21 and 22 may be simply overlapped, but it is more desirable to integrate them by heat welding, needle punching, or the like. Moreover, you may make it closely_contact
  • the skin material nonwoven fabrics 211 and 221 preferably have a basis weight of 10 to 400 g / m 2 and a thickness of 0.1 to 4.0 mm.
  • the weight per unit area or thickness is larger than the range, the difference in sound absorption characteristics from a general sound absorbing material is lost, and the effect of providing a skin material may not be obtained.
  • the weight per unit area or thickness is smaller than the range, the sound absorbing effect as the sound absorbing material may not be sufficiently exhibited.
  • the base nonwoven fabrics 212 and 222 preferably have a basis weight of 100 to 1000 g / m 2 and a thickness of 1.0 to 50.0 mm.
  • basis weight increases, the sound absorption coefficient in all frequency bands increases, and when the basis weight decreases, the sound absorption coefficient in all frequency bands tends to decrease.
  • thickness increases, the sound absorption performance in the low frequency band is increased, and when the thickness is decreased, the sound absorption characteristic in the high frequency band tends to be increased.
  • the thicknesses of the base nonwoven fabrics 212 and 222 can be appropriately adjusted according to the frequency band to be absorbed.
  • the fiber diameters of the skin material nonwoven fabrics 211 and 221 are preferably in the range of 1 to 50 ⁇ m, and the fiber diameters of the base nonwoven fabrics 212 and 222 are preferably in the range of 4 to 100 ⁇ m.
  • the thinner the fiber diameter the higher the sound absorbing performance as a nonwoven fabric. However, if the fiber diameter is too thin, the nonwoven fabric may become brittle.
  • polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyolefins, nylons, polyamides, polyvinyl chloride, rayon, acrylics, acrylonitrile, cellulose, kenaf, and glass.
  • a needle punch method As a method for producing each nonwoven fabric, a needle punch method, a spunbond method, a spunlace method, a melt blown method, or the like can be used.
  • the two sound absorbing materials 21 and 22 are used, but the sound absorbing material 21 is wound around the wire harness 9 like the wire harness 11 with the sound absorbing material shown in FIG. It is good also as a structure which connects the edge part with the tag pin 3.
  • the sound-absorbing materials 21 and 22 are nonwoven fabric laminated bodies which consist of a skin material nonwoven fabric and a base material nonwoven fabric, you may use the sound-absorbing material which consists only of any one nonwoven fabric.
  • Examples and comparative examples of the wire harness with a sound absorbing material according to the present invention are shown below.
  • As the sound-absorbing material of this example and the comparative example a nonwoven fabric obtained by integrating a skin material nonwoven fabric and a substrate nonwoven fabric having the following specifications by a needle punch method was used.
  • Fiber material Olefin fiber Fiber diameter: ⁇ 9 ⁇ m Manufacturing method: Melt blown method basis weight: 50 g / m 2 Thickness: 1mm
  • Fiber material Mixed fiber of polyester fiber and low melting point polyester fiber Fiber diameter: ⁇ 14 ⁇ m Manufacturing method: Needle punch method basis weight: 300 g / m 2 Thickness: 10mm
  • Example 1 Tag pin (manufactured by Toscabanak Co., Ltd .; Bannock pin 503SL18 mm) Comparative Example 1: Double-sided tape (Nitto Denko Corporation; EW-514) Comparative Example 2: Ultrasonic welding (Nippon Emerson Corporation; 2000X series ultrasonic welding machine) Comparative Example 3: No fixing
  • the sound absorption performance was compared by measuring the sound absorption rate of 500 to 5000 Hz by the normal incidence sound absorption rate test method of JISA1405-2. Two of the above sound-absorbing materials were processed into a circular shape of ⁇ 40 mm, and the vicinity of the center was fixed by the fixing method as a test specimen.
  • FIG. 5 is a diagram showing a test apparatus used for measurement of normal incidence sound absorption coefficient.
  • the test apparatus is composed of a straight cylindrical acoustic tube 5, and one end portion of the acoustic tube 5 and the vicinity thereof have a diameter-expanded portion 52 whose inner diameter is slightly larger than ⁇ 40 mm.
  • the enlarged diameter portion 52 is provided with a back plate 53 that supports the test body 6, and the test body 6 is a portion other than the enlarged diameter portion 52 of the acoustic tube 5 with the base nonwoven fabric supported by the back plate 53. It arrange
  • a speaker 54 as a sound source is disposed at the other end of the main body 51 and faces the skin material nonwoven fabric of the test body 6.
  • Two attachment holes for the microphone 55 are provided along the axial direction on the tube wall on the slightly enlarged diameter portion 52 side from the center in the axial direction of the acoustic tube 5, and each of the attachment holes has a microphone. 55 is inserted.
  • the incident sound (li) and reflected sound (lr) of the test sound emitted from the speaker 54 are collected by the microphone 55, and the normal incident sound absorption coefficient ( ⁇ ) is expressed by the following equation (1).
  • Example 1 Tag pin (manufactured by Toscabanak Co., Ltd .; Bannock pin 503SL18 mm) Comparative Example 1: Double-sided tape (Nitto Denko Corporation; EW-514) Comparative Example 2: Ultrasonic welding (Nippon Emerson Corporation; 2000X series ultrasonic welding machine) Comparative Example 3: No fixing
  • the comparison of the fixing strength was performed by measuring the maximum strength in accordance with the shear adhesion test of JISK6850. The measurement was performed using a tensile tester at a speed of 100 mm / min. As the test piece 7, as shown in FIG. 7, the two sound absorbing materials processed into a rectangle of 100 mm ⁇ 25 mm were arranged so that the end portions in the longitudinal direction overlap each other in the thickness direction by 12.5 mm, and overlapped. What fixed the part with the said fixing method was used. In addition, the test piece 7 of Example 1 was fixed only with one tag pin. The results are shown in Table 2.
  • the tensile strength of the fixing method using the double-sided tape (Comparative Example 1) or ultrasonic welding (Comparative Example 2) was 1.3 N and 8.4 N, respectively.
  • the tensile strength of the fixing method using the tag pins (Example 1) was 15 5N, and it was confirmed that sufficient fixing strength could be obtained even by the fixing method using tag pins (Example 1).
  • fixing the sound absorbing material with a tag pin allows the sound absorbing material to be fixed with a fixing strength higher than the conventional fixing method without deteriorating the sound absorbing performance of the sound absorbing material. It was confirmed that.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Insulated Conductors (AREA)
  • Details Of Indoor Wiring (AREA)

Abstract

La présente invention vise à fournir un faisceau de câbles ayant un matériau absorbant le son, le matériau absorbant le son étant fixé à un faisceau de câbles sans dégradation de performance d'absorption de son. À cet effet, l'invention concerne un faisceau de câbles ayant un matériau absorbant le son, qui a un faisceau de câbles et un matériau absorbant le son formés d'une seule pièce dans un état dans lequel au moins une partie du faisceau de câbles dans une direction axiale est recouverte d'un ou d'une pluralité de matériaux absorbant le son, ledit faisceau de câbles ayant un matériau absorbant le son étant caractérisé par le fait que : le matériau absorbant le son est formé à partir d'un tissu de non-tissé ; au moins certaines parties du matériau absorbant le son se chevauchent dans la direction d'épaisseur, et la partie de chevauchement est fixée au faisceau de câbles en étant reliée par un élément de fixation ; l'élément de fixation a une partie d'arbre passant à travers la partie de chevauchement dans la direction d'épaisseur ; et la longueur dans la direction axiale de la partie d'arbre est de 5 mm ou plus.
PCT/JP2015/075957 2014-10-03 2015-09-14 Faisceau de câbles ayant un matériau absorbant le son WO2016052150A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-204895 2014-10-03
JP2014204895A JP2016075755A (ja) 2014-10-03 2014-10-03 吸音材付きワイヤーハーネス

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WO2016052150A1 true WO2016052150A1 (fr) 2016-04-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160329039A1 (en) * 2014-01-29 2016-11-10 AutoNetworks Technologes, Ltd. Acoustic insulator and wiring harness with acoustic insulator
WO2023210431A1 (fr) * 2022-04-25 2023-11-02 株式会社オートネットワーク技術研究所 Module de câblage de plancher, stratifié de plancher et procédé de fabrication de module de câblage de plancher

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019051490A (ja) * 2017-09-18 2019-04-04 日本バイリーン株式会社 粗塵除去用複合濾材
JP2022102047A (ja) * 2020-12-25 2022-07-07 ワールドウォーターバッグ株式会社 面ファスナーのずれ止め方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002225189A (ja) * 2001-02-06 2002-08-14 Tamagawa Seni Kogyosho:Kk 分別回収の容易なフェルト／ゴム積層構造体
JP2004239936A (ja) * 2003-02-03 2004-08-26 Teijin Fibers Ltd 多層吸音構造体
JP2006098890A (ja) * 2004-09-30 2006-04-13 Toray Ind Inc 吸音材およびその製造方法
JP2007230312A (ja) * 2006-02-28 2007-09-13 Uchimura:Kk マット状防音材
JP2012123974A (ja) * 2010-12-07 2012-06-28 Sumitomo Wiring Syst Ltd ワイヤハーネス

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002225189A (ja) * 2001-02-06 2002-08-14 Tamagawa Seni Kogyosho:Kk 分別回収の容易なフェルト／ゴム積層構造体
JP2004239936A (ja) * 2003-02-03 2004-08-26 Teijin Fibers Ltd 多層吸音構造体
JP2006098890A (ja) * 2004-09-30 2006-04-13 Toray Ind Inc 吸音材およびその製造方法
JP2007230312A (ja) * 2006-02-28 2007-09-13 Uchimura:Kk マット状防音材
JP2012123974A (ja) * 2010-12-07 2012-06-28 Sumitomo Wiring Syst Ltd ワイヤハーネス

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160329039A1 (en) * 2014-01-29 2016-11-10 AutoNetworks Technologes, Ltd. Acoustic insulator and wiring harness with acoustic insulator
US9978352B2 (en) * 2014-01-29 2018-05-22 Autonetworks Technologies, Ltd. Acoustic insulator and wiring harness with acoustic insulator
WO2023210431A1 (fr) * 2022-04-25 2023-11-02 株式会社オートネットワーク技術研究所 Module de câblage de plancher, stratifié de plancher et procédé de fabrication de module de câblage de plancher

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