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WO2014045641A1 - Wire harness system - Google Patents

Wire harness system Download PDF

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Publication number
WO2014045641A1
WO2014045641A1 PCT/JP2013/064601 JP2013064601W WO2014045641A1 WO 2014045641 A1 WO2014045641 A1 WO 2014045641A1 JP 2013064601 W JP2013064601 W JP 2013064601W WO 2014045641 A1 WO2014045641 A1 WO 2014045641A1
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WO
WIPO (PCT)
Prior art keywords
wire harness
wire
switching unit
fuse
switching
Prior art date
Application number
PCT/JP2013/064601
Other languages
French (fr)
Japanese (ja)
Inventor
北 幸功
浅田 一宏
井本 政善
橋倉 学
善弘 肥田
敏之 土田
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.)
Filing date
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 WO2014045641A1 publication Critical patent/WO2014045641A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric 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
    • B60R16/02Electric 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
    • B60R16/0207Wire harnesses
    • B60R16/0215Protecting, fastening and routing means therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/08Distribution boxes; Connection or junction boxes
    • H02G3/16Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box

Definitions

  • the present invention relates to a wire harness system for a vehicle.
  • a wire harness system for a vehicle includes an electric connection box disposed between a power supply and an on-vehicle electrical component.
  • the electrical connection box is electrically connected to the power source and the on-vehicle electrical component through a wire harness composed of a plurality of electric wires.
  • the electrical connection box has a plurality of switching elements disposed in a case. By turning on these switching elements, power from the power supply is supplied to the on-vehicle electrical components.
  • the case is further formed with a fuse mounting portion to which a plurality of fuse elements are mounted.
  • the fuse element is configured to suppress an overcurrent from flowing to the on-vehicle electrical component or the electric wire.
  • Patent document 1 is mentioned as an example of such an electrical connection box.
  • the present invention has been completed based on the above-mentioned circumstances, and an object of the present invention is to provide a technology capable of suppressing an increase in size of the electrical connection box.
  • the present invention is a wire harness system, comprising: a wire harness mounted on a vehicle and provided with a wire bundle in which a plurality of wires are bundled; an electrical component electrically connected to the wire harness; and the wire harness A switching unit having a switching element electrically connected to the electric wire bundle and directly or indirectly attached to the wire bundle and performing energization or de-energization on the electrical component.
  • the switching unit further includes an overcurrent protection unit that suppresses the flow of an overcurrent in the electrical component or the electric wire.
  • the switching unit comprises a switching element.
  • the switching element conventionally arrange
  • the switching unit comprises an overcurrent protection.
  • the fuse element conventionally provided in the electrical connection box can be omitted, so that the size of the electrical connection box can be suppressed.
  • the overcurrent protection unit is preferably a fuse element that melts when an overcurrent flows.
  • the fuse element when the overcurrent flows in the electric component or the electric wire, the fuse element is melted down, so that the overcurrent can be reliably suppressed from flowing in the electric component or the electric wire.
  • the switching unit includes a fuse mounting unit to which the fuse element is mounted.
  • the fuse element when the fuse element is fused, the fuse element can be easily replaced.
  • the switching unit is directly attached to the wire bundle by a binding member.
  • the switching unit since the switching unit is directly attached to the wire bundle, it does not protrude outside the wire harness. As a result, the wire harness can be miniaturized as a whole.
  • the enlargement of the electrical connection box can be suppressed.
  • FIG. 1 is a schematic view showing a wire harness system according to a first embodiment of the present invention.
  • FIG. 2 is a partially enlarged side view showing the mounting structure of the switching unit.
  • FIG. 3 is an exploded perspective view showing the switching unit.
  • FIG. 4 is a plan view showing a circuit board and a connector housing.
  • FIG. 7 is a block diagram showing a wire harness system.
  • a vehicle 10 is mounted with a power supply 12 and an electrical component 14 electrically connected to the power supply 12 via a wire harness 13.
  • An electrical connection box 16 is disposed between the power supply 12 and the electrical component 14.
  • the wire harness 13 includes a wire bundle 18 in which a plurality of wires 17 are bundled.
  • the wire bundle 18 is formed by winding a tape 19 (an example of a binding member) coated with an adhesive on one surface in a state where the plurality of wires 17 are bundled.
  • the electric wire 17 is formed by covering the outer periphery of a core wire (not shown) with an insulating layer made of synthetic resin.
  • the core wire is made of a conductive material such as metal or carbon nanotube.
  • a stranded wire formed by twisting metal fine wires is used.
  • a metal used for a strand wire arbitrary metals can be suitably selected as needed, such as copper, a copper alloy, aluminum, an aluminum alloy, iron, an iron alloy. In this embodiment, copper or a copper alloy is used.
  • an electrical connection box 16 is electrically connected to the wire harness 13.
  • the electric connection box 16 according to the present embodiment is a so-called junction box in which the electric wire 17 introduced from the power source 12 into the electric connection box 16 is branched into a plurality of electric wires 17 in the electric connection box 16.
  • the wire 17 may be branched into a plurality of wires 17 by a known splice terminal in the wire harness 13.
  • Wire harness system 11 An example of the wire harness system 11 which concerns on FIG. 1 at this embodiment is shown typically.
  • a power supply 12 is mounted in an engine room 30 of the vehicle 10. Further, in the engine compartment 30, an electric connection box 16 connected to the power source 12 via the electric wire 17 is mounted.
  • a wire harness 13 is connected to the electrical connection box 16.
  • the wire harness 13 is wired at an arbitrary position as needed, such as under the floor of the vehicle 10, in a pillar, and the like. In this embodiment, in FIG. 1, a wire harness 13 wired under the floor of the vehicle 10 will be described as an example. Electric wires 17 are branched from the wire harness 13.
  • An electrical component 14 is electrically connected to the terminal of the wire 17 branched from the wire harness 13.
  • Examples of the electrical components 14 include wiper motors, headlights, room lights, tail lights 36, cell motors, washer pumps, rear window defrosters, seat heaters 31, de-iasers, DRL systems, fog lamps, horns, PTC heaters, rear seat rooms.
  • the light 32 etc. are included.
  • the electrical components 14 are not limited to these, and may be appropriately selected as needed.
  • a seat heater 31, a rear seat room light 32, and a taillight 36 are shown in FIG. 1 as an example of the electrical component 14.
  • the seat heater 31 is disposed on a seat 34 attached to the inside of a passenger compartment 33 on which a passenger takes a seat.
  • the switching unit 21 provided with the switching element 22 for performing energization or de-energization to the seat heater 31 is disposed in the vicinity of the branch portion 35 where the electric wire 17 is branched from the wire harness 13 to the seat heater 31.
  • the rear seat room light 32 is disposed at a position near the ceiling of the rear seat in the passenger compartment 33.
  • the switching unit 21 provided with the switching element 22 for performing energization or disconnection to the rear seat room light 32 is disposed in the vicinity of the branch portion 35 where the electric wire 17 is branched from the wire harness 13 to the seat heater 31. ing.
  • the taillight 36 is disposed at the rear end of the vehicle 10.
  • illustration is abbreviate
  • FIG. 1 exemplifies a configuration in which a manual switch 38 for instructing the seat heater 31 to be energized or disconnected is disposed on the instrument panel 37.
  • the signal line 50 is routed from the instrument panel 37 to the floor, and is bundled together with the plurality of wires 17 into the wire bundle 18.
  • the signal line 50 may be arranged on the vehicle 10 along a route different from the bundle of wires 18 in which the wires 17 connected to the electrical component 14 are bundled.
  • switching unit 21 As shown in FIG. 1, the switching unit 21 is electrically connected to the wire harness 13.
  • the switching unit 21 is provided with a switching element 22 for performing energization or disconnection of the electric component 14.
  • the switching unit 21 includes a case 23, a circuit board 24 housed in the case 23, and a connector housing 25 electrically connected to the circuit board 24.
  • the case 23 is made of synthetic resin and has a cylindrical shape with a bottom. In this embodiment, it has a substantially rectangular cylindrical shape.
  • the circuit board 24 is formed by forming a conductive path (not shown) by a printed wiring technology on a substantially rectangular insulating substrate.
  • the switching element 22 is electrically connected to the conductive path formed on the circuit board 24 by a known method such as soldering on the surface of the circuit board 24.
  • the switching element 22 is a mechanical relay.
  • two switching elements 22 are disposed side by side on the surface of the circuit board 24.
  • the number of switching elements 22 provided in the switching unit 21 may be one, or three or more.
  • the connector housing 25 is made of synthetic resin, and includes a hood portion 28 opened to the outside of the case 23.
  • a lock 26 is formed on the outer wall of the hood 28 so as to protrude outward.
  • the lock portion 26 elastically engages with the lock receiving portion 27 formed at a position near the opening edge portion of the case 23, whereby the case 23 and the connector housing 25 are integrally assembled. (See Figure 5).
  • the hood portion 28 is formed with a locking projection 44 projecting toward the circuit board 24.
  • the locking projection 44 is penetrated through the through hole 45 formed in the circuit board 24 in a state of coming off prevention.
  • the connector housing 25 and the circuit board 24 are assembled.
  • a plurality of metal terminals 29 are penetrated through the back wall of the hood portion 28.
  • a not-shown mating terminal attached to the end of the electric wire 17 is inserted into the hood portion 28.
  • the electric wire 17 is connected to the switching unit 21.
  • One end portion of the terminal 29 is disposed inside the hood portion 28, and the other end portion of the terminal 29 penetrates the back wall and protrudes to the outside of the connector housing 25, and then substantially toward the circuit board 24. It is bent at a right angle.
  • the other end of the terminal 29 is electrically connected to a conductive path formed in the circuit board 24 by a known method such as soldering while penetrating the circuit board 24 (see FIG. 6).
  • a fuse connecting member 40 made of synthetic resin is disposed on the surface of the circuit board 24.
  • the fuse connecting member 40 has a first fuse mounting portion 41 to which a first fuse element 39A (overcurrent protection portion, corresponding to a fuse element) to which a relatively large current flows is attached, and a relatively small current flows
  • a second fuse mounting portion 42 to which a second fuse element 39B (overcurrent protection portion, corresponding to a fuse element) to be mounted is mounted is formed to open in a direction opposite to the circuit board 24.
  • a fuse connection terminal 43 is accommodated in the first fuse mounting portion 41 and the second fuse mounting portion 42.
  • the fuse connection terminal 43 is electrically connected to a conductive path formed on the circuit board 24 by a known method such as soldering in a state of being penetrated to the circuit board 24 (see FIG. 6).
  • soldering in a state of being penetrated to the circuit board 24 (see FIG. 6).
  • the fuse connection member 40 is formed with one first fuse mounting portion 41 (corresponding to a fuse mounting portion) and two second fuse mounting portions 42 (corresponding to a fuse mounting portion). There is. Thereby, according to the magnitude of the current supplied to the switching element 22, whether to use one first fuse element 39A and one second fuse element 39B or to use two second fuse elements 39B as appropriate It is possible to select it.
  • FIG. 7 is a block diagram showing an outline of the wire harness system 11.
  • the power source 12 in the present embodiment is a battery and an alternator.
  • the fuse element 39 disposed in the switching unit 21 is electrically connected between the power supply 12 and the switching element 22.
  • the fuse element 39 may be electrically connected between the switching element 22 and the electrical component 14.
  • the fuse element 39 is fused when an overcurrent is applied. Thereby, it is suppressed that an overcurrent flows into the electrical component 14 or the electric wire 17.
  • FIG. 7 a configuration in which two switching elements 22 and two fuse elements 39 are disposed inside one switching unit 21, and one switching element 22 and one fuse inside one switching unit 21.
  • the arrangement in which the element 39 is arranged is shown. Note that three or more switching elements 22 and three or more fuse elements 39 may be provided in one switching unit 21.
  • the vehicle 10 is provided with a plurality of switching units 21.
  • the attachment structure of the switching unit 21 is not limited to the following configuration.
  • the switching unit 21 is configured to be bundled together with the wire bundle 18 by a tape 19 that ties the wire bundle 18.
  • the switching unit 21 is directly fixed to the wire bundle 18 by winding the tape 19 on the wire bundle 18.
  • the switching unit 21 may be configured to be exposed from the tape 19 or may be integrally bundled with the wire bundle 18 by the tape 19 and be embedded in the wound tape 19.
  • the switching unit 21 according to FIG. 2 is attached in the vicinity of the branch portion 35 where the wire bundle 18 including the first electric wire 17A connected from the wire harness 13 to the electrical component 14 branches.
  • the switching unit 21 may be disposed inside the passenger compartment 33.
  • a switching unit 21 having a switching element 22 for performing energization or de-energization to the seat heater 31 is attached below the seat 34 disposed in the passenger compartment 33.
  • the switching unit 21 can be disposed at any position in the passenger compartment 33. Since the switching element 22 according to the present embodiment is relatively small, the operation noise is relatively small when performing energization or disconnection. Thereby, it can arrange
  • a wire harness system 11 includes a wire harness 13 mounted on a vehicle 10 and provided with a wire bundle 18 in which a plurality of wires 17 are bundled, and an electrical component 14 electrically connected to the wire harness 13. And a switching element 22 electrically connected to the wire harness 13 and directly or indirectly attached to the wire bundle 18 and performing energization or disconnection of the electrical component 14.
  • the switching unit 21 further includes a fuse element 39 that suppresses the flow of an overcurrent in the electrical component 14 or the electric wire 17.
  • the switching element 22 for performing energization or disconnection of the electrical component 14 can be attached to the wire bundle 18 of the wire harness 13, the wire harness system 11 can be miniaturized.
  • the switching unit 21 includes the switching element 22.
  • the switching element 22 conventionally provided in the electrical connection box can be omitted, the increase in size of the electrical connection box 16 can be suppressed, and furthermore, the electrical connection box 16 can be omitted.
  • the switching unit 21 includes a fuse element 39.
  • the fuse element conventionally provided in the electrical connection box can be omitted, so that the increase in size of the electrical connection box 16 can be suppressed, and furthermore, the electrical connection box 16 can be omitted.
  • the fuse element 39 when the overcurrent flows in the electric component 14 or the electric wire 17, the fuse element 39 is melted and cut, so that the overcurrent flows in the electric component 14 or the electric wire 17 reliably. It can be suppressed.
  • the switching unit 21 includes a fuse mounting portion to which the fuse element 39 is mounted.
  • fuse element 39 can be easily replaced.
  • the switching unit 21 is bound to the wire bundle 18 by the tape 19 that bundles the plurality of wires 17. Thereby, since the switching unit 21 is bound to the wire bundle 18, it does not protrude outside the wire harness 13. As a result, the wire harness 13 can be miniaturized.
  • the switching element 22 is a mechanical relay.
  • the switching element 22 may be a semiconductor switching element such as an FET or an IGBT. Further, the mechanical relay and the semiconductor switching element may be disposed in one switching unit 21.
  • the fuse element 39 is used as the overcurrent protection unit.
  • the overcurrent protection unit is provided in the semiconductor switching element disposed in the switching unit 21 to perform semiconductor switching
  • An overcurrent protection circuit may be used to control the on / off of the element.
  • the overcurrent protection unit may be a microcomputer that controls on / off of the semiconductor switching element disposed in the switching unit 21 by executing a program.
  • the fuse element 39 may be directly connected to the conductive path formed on the circuit board 24 by brazing, soldering or the like.
  • all the switching elements 22 and all the fuse elements 39 are disposed in the switching unit 21 and attached to the wire bundle 18.
  • the present invention is not limited to this.
  • a part of the element 22 or a part of the plurality of fuse elements 39 may be disposed in the electric connection box 16.
  • the binding member may be a binding band.
  • the binding band may be made of synthetic resin or metal.
  • the manual switch 38 is provided on the instrument panel 37.
  • the manual switch 38 may be provided on the armrest of the door, and can be provided at any position as required.
  • the switching unit 21 may be controlled from an electronic control unit such as a body ECU.
  • the switching unit 21 is directly attached to the wire bundle 18 by the tape 19.
  • the switching unit 21 is derived from the connector housing 25 of the switching unit 21. It may be configured to be indirectly attached to the wire bundle 18 via the wire 17. In this way, when attaching to a portion where the vibration is relatively small, the work of bundling with the tape 19 becomes unnecessary, so the working efficiency is improved.
  • one switching element 22 is connected to one electric component 14, but the present invention is not limited to this.
  • One switching element 22 may be connected in parallel or in series to a plurality of electric components 14.
  • the plurality of switching elements 22 may be connected in parallel or in series to one electric component 14, and the plurality of switching elements 22 may be connected to a plurality of electric components 14. May be connected in parallel or in series.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Or Junction Boxes (AREA)
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Abstract

Provided is a wire harness system which inhibits an increase in size of an electrical connection box by not disposing a switching element and a fuse element in the electrical connection box. A wire harness system (11) is provided with: a wire harness (13) which is provided to a vehicle (10), and provided with an electrical wire bundle (18) in which a plurality of electrical wires (17) are bound; electrical equipment (14) electrically connected to the wire harness (13); and a switching unit (21) which is electrically connected to the wire harness (13), which is directly or indirectly attached to the electrical wire bundle (18), and which is provided with a switching element (22) for interrupting and allowing the passage of current to the electrical equipment (14). The switching unit (21) is further provided with a fuse element (39) for inhibiting the flow of excess current to the electrical equipment (14) or the electrical wires (17).

Description

ワイヤーハーネスシステムWire harness system
 本発明は、車両用のワイヤーハーネスシステムに関する。 The present invention relates to a wire harness system for a vehicle.
 従来、車両用のワイヤーハーネスシステムは、電源と車載電装品との間に配設された電気接続箱を備える。電気接続箱は、複数の電線からなるワイヤーハーネスを介して電源及び車載電装品に電気的に接続されている。この電気接続箱は、ケース内に複数のスイッチング素子を配設してなる。これらのスイッチング素子がオンされることにより、車載電装品に対して電源からの電力が供給される。ケースには、更に、複数のヒューズ素子が装着されるヒューズ装着部が形成されている。ヒューズ素子により、車載電装品又は電線に過電流が流れることが抑制されるようになっている。このような電気接続箱の例として特許文献1が挙げられる。 Conventionally, a wire harness system for a vehicle includes an electric connection box disposed between a power supply and an on-vehicle electrical component. The electrical connection box is electrically connected to the power source and the on-vehicle electrical component through a wire harness composed of a plurality of electric wires. The electrical connection box has a plurality of switching elements disposed in a case. By turning on these switching elements, power from the power supply is supplied to the on-vehicle electrical components. The case is further formed with a fuse mounting portion to which a plurality of fuse elements are mounted. The fuse element is configured to suppress an overcurrent from flowing to the on-vehicle electrical component or the electric wire. Patent document 1 is mentioned as an example of such an electrical connection box.
特開2003-218563号公報Japanese Patent Application Publication No. 2003-218563
 上記の技術によると、電気接続箱には複数のスイッチング素子が配設されると共に、複数のヒューズ素子が装着されるので、電気接続箱が大型化するという問題がある。近年、車両に対して、安全性の向上、及び居住性の向上が求められており、これに伴って車載電装品の個数も増大する傾向にある。このため、電気接続箱の大型化は特に問題となりうる。 According to the above-mentioned technology, since a plurality of switching elements are provided in the electrical connection box and a plurality of fuse elements are mounted, there is a problem that the size of the electrical connection box is increased. In recent years, there has been a demand for improved safety and comfort in vehicles, and the number of in-vehicle electrical components tends to increase accordingly. Therefore, the increase in size of the electrical connection box can be particularly problematic.
 本発明は上記のような事情に基づいて完成されたものであって、電気接続箱の大型化を抑制することのできる技術を提供することを目的とする。 The present invention has been completed based on the above-mentioned circumstances, and an object of the present invention is to provide a technology capable of suppressing an increase in size of the electrical connection box.
 本発明は、ワイヤーハーネスシステムであって、車両に搭載されると共に複数の電線が束ねられた電線束を備えたワイヤーハーネスと、前記ワイヤーハーネスに電気的に接続された電装品と、前記ワイヤーハーネスに電気的に接続されると共に前記電線束に直接的に又は間接的に取り付けられるものであって、前記電装品に対して通電又は断電を実行するスイッチング素子を備えたスイッチングユニットと、を備え、前記スイッチングユニットは、更に、前記電装品又は前記電線に過電流が流れることを抑制する過電流保護部を備える。 The present invention is a wire harness system, comprising: a wire harness mounted on a vehicle and provided with a wire bundle in which a plurality of wires are bundled; an electrical component electrically connected to the wire harness; and the wire harness A switching unit having a switching element electrically connected to the electric wire bundle and directly or indirectly attached to the wire bundle and performing energization or de-energization on the electrical component. The switching unit further includes an overcurrent protection unit that suppresses the flow of an overcurrent in the electrical component or the electric wire.
 本発明によれば、スイッチングユニットはスイッチング素子を備える。これにより、従来、電気接続箱に配設されていたスイッチング素子を省略できるので、電気接続箱の大型化を抑制することができる。 According to the invention, the switching unit comprises a switching element. Thereby, since the switching element conventionally arrange | positioned by the electrical connection box can be abbreviate | omitted, the enlargement of an electrical connection box can be suppressed.
 更に、スイッチングユニットは過電流保護部を備える。これにより、従来、電気接続箱に配設されていたヒューズ素子を省略できるので、電気接続箱の大型化を抑制することができる。 Furthermore, the switching unit comprises an overcurrent protection. Thus, the fuse element conventionally provided in the electrical connection box can be omitted, so that the size of the electrical connection box can be suppressed.
 本発明の実施態様としては以下の態様が好ましい。前記過電流保護部は、過電流が流された時に溶断するヒューズ素子であることが好ましい。 The following aspects are preferable as an embodiment of this invention. The overcurrent protection unit is preferably a fuse element that melts when an overcurrent flows.
 上記の態様によれば、電装品、又は電線に過電流が流れた場合には、ヒューズ素子が溶断するので、電装品、又は電線に過電流が流れることを確実に抑制することができる。 According to the above aspect, when the overcurrent flows in the electric component or the electric wire, the fuse element is melted down, so that the overcurrent can be reliably suppressed from flowing in the electric component or the electric wire.
 前記スイッチングユニットは前記ヒューズ素子が装着されるヒューズ装着部を備えることが好ましい。 Preferably, the switching unit includes a fuse mounting unit to which the fuse element is mounted.
 上記の態様によれば、ヒューズ素子が溶断した場合に、ヒューズ素子を容易に交換することができる。 According to the above aspect, when the fuse element is fused, the fuse element can be easily replaced.
 前記スイッチングユニットは結束部材によって前記電線束に直接的に取り付けられていることが好ましい。 Preferably, the switching unit is directly attached to the wire bundle by a binding member.
 上記の態様によれば、スイッチングユニットは電線束に直接的に取り付けられているので、ワイヤーハーネスの外側に突出しないようになっている。この結果、ワイヤーハーネスを全体として小型化することができる。 According to the above aspect, since the switching unit is directly attached to the wire bundle, it does not protrude outside the wire harness. As a result, the wire harness can be miniaturized as a whole.
 本発明によれば、電気接続箱の大型化を抑制することができる。 According to the present invention, the enlargement of the electrical connection box can be suppressed.
図1は本発明の実施形態1に係るワイヤーハーネスシステムを示す模式図である。FIG. 1 is a schematic view showing a wire harness system according to a first embodiment of the present invention. 図2はスイッチングユニットの取り付け構造を示す一部拡大側面図である。FIG. 2 is a partially enlarged side view showing the mounting structure of the switching unit. 図3はスイッチングユニットを示す分解斜視図である。FIG. 3 is an exploded perspective view showing the switching unit. 図4は回路基板とコネクタハウジングとを示す平面図である。FIG. 4 is a plan view showing a circuit board and a connector housing. 図5はスイッチングユニットを示す平面図である。FIG. 5 is a plan view showing the switching unit. 図6は図5におけるVI-VI線断面図である。6 is a cross-sectional view taken along the line VI-VI in FIG. 図7はワイヤーハーネスシステムを示すブロック図である。FIG. 7 is a block diagram showing a wire harness system.
 <実施形態1>
 本発明を、車両10に搭載されたワイヤーハーネスシステム11に適用した実施形態1について、図1ないし図7を参照しつつ説明する。
First Embodiment
A first embodiment in which the present invention is applied to a wire harness system 11 mounted on a vehicle 10 will be described with reference to FIGS. 1 to 7.
 図1に示すように、車両10には、電源12と、この電源12にワイヤーハーネス13を介して電気的に接続された電装品14と、が搭載されている。電源12と電装品14との間には電気接続箱16が配設されている。 As shown in FIG. 1, a vehicle 10 is mounted with a power supply 12 and an electrical component 14 electrically connected to the power supply 12 via a wire harness 13. An electrical connection box 16 is disposed between the power supply 12 and the electrical component 14.
(ワイヤーハーネス13)
 図2に示すように、ワイヤーハーネス13は、複数の電線17が束ねられた電線束18を備える。電線束18は、複数の電線17が束ねられた状態で、一方の面に粘着剤が塗布されたテープ19(結束部材の一例)が捲回されることによって形成される。電線17は、芯線(図示せず)の外周を、合成樹脂製の絶縁層で被覆してなる。芯線は、金属、カーボンナノチューブ等の導電性の材料からなる。本実施形態においては、金属細線を撚り合わせてなる撚り線が用いられている。撚り線に用いられる金属としては、銅、銅合金、アルミニウム、アルミニウム合金、鉄、鉄合金等、必要に応じて任意の金属を適宜に選択できる。本実施形態では銅又は銅合金が用いられる。
(Wire harness 13)
As shown in FIG. 2, the wire harness 13 includes a wire bundle 18 in which a plurality of wires 17 are bundled. The wire bundle 18 is formed by winding a tape 19 (an example of a binding member) coated with an adhesive on one surface in a state where the plurality of wires 17 are bundled. The electric wire 17 is formed by covering the outer periphery of a core wire (not shown) with an insulating layer made of synthetic resin. The core wire is made of a conductive material such as metal or carbon nanotube. In the present embodiment, a stranded wire formed by twisting metal fine wires is used. As a metal used for a strand wire, arbitrary metals can be suitably selected as needed, such as copper, a copper alloy, aluminum, an aluminum alloy, iron, an iron alloy. In this embodiment, copper or a copper alloy is used.
(電気接続箱16)
 図1に示すように、ワイヤーハーネス13には電気接続箱16が電気的に接続されている。本実施形態に係る電気接続箱16は、電気接続箱16内で、電源12から電気接続箱16の内部に導入された電線17が複数の電線17に分岐される、いわゆるジャンクションボックスとされる。なお、電線17は、ワイヤーハーネス13において、公知のスプライス端子によって複数の電線17に分岐される構成としてもよい。
(Electrical connection box 16)
As shown in FIG. 1, an electrical connection box 16 is electrically connected to the wire harness 13. The electric connection box 16 according to the present embodiment is a so-called junction box in which the electric wire 17 introduced from the power source 12 into the electric connection box 16 is branched into a plurality of electric wires 17 in the electric connection box 16. The wire 17 may be branched into a plurality of wires 17 by a known splice terminal in the wire harness 13.
(ワイヤーハーネスシステム11)
 図1に、本実施形態に係るワイヤーハーネスシステム11の一例を模式的に示す。車両10のエンジンルーム30内には電源12が搭載されている。また、エンジンルーム30内には、電源12に電線17を介して接続された電気接続箱16が搭載されている。電気接続箱16にはワイヤーハーネス13が接続されている。ワイヤーハーネス13は、車両10の床下、ピラー内等、必要に応じて任意の位置に配索されている。本実施形態においては、図1において、車両10の床下に配索されたワイヤーハーネス13を例に説明する。ワイヤーハーネス13からは電線17が分岐されている。ワイヤーハーネス13から分岐された電線17の端末には、電装品14が電気的に接続されている。
(Wire harness system 11)
An example of the wire harness system 11 which concerns on FIG. 1 at this embodiment is shown typically. A power supply 12 is mounted in an engine room 30 of the vehicle 10. Further, in the engine compartment 30, an electric connection box 16 connected to the power source 12 via the electric wire 17 is mounted. A wire harness 13 is connected to the electrical connection box 16. The wire harness 13 is wired at an arbitrary position as needed, such as under the floor of the vehicle 10, in a pillar, and the like. In this embodiment, in FIG. 1, a wire harness 13 wired under the floor of the vehicle 10 will be described as an example. Electric wires 17 are branched from the wire harness 13. An electrical component 14 is electrically connected to the terminal of the wire 17 branched from the wire harness 13.
 電装品14としては、例えば、ワイパモータ、ヘッドライト、ルームライト、テールライト36、セルモータ、ウォッシャポンプ、リアウィンドウ用デフロスタ、シートヒータ31、ディアイサ、DRLシステム、フォグランプ、ホーン、PTCヒータ、後部座席用ルームライト32等が含まれる。電装品14はこれらに限定されず、必要に応じて適宜に選択しうる。 Examples of the electrical components 14 include wiper motors, headlights, room lights, tail lights 36, cell motors, washer pumps, rear window defrosters, seat heaters 31, de-iasers, DRL systems, fog lamps, horns, PTC heaters, rear seat rooms. The light 32 etc. are included. The electrical components 14 are not limited to these, and may be appropriately selected as needed.
 図1には、電装品14の例としてシートヒータ31、後部座席用ルームライト32、及びテールライト36が示されている。シートヒータ31は、搭乗者が搭乗する車室33の内部に取り付けられたシート34に配設されている。シートヒータ31に対して通電又は断電を実行するスイッチング素子22を備えたスイッチングユニット21は、ワイヤーハーネス13からシートヒータ31へ電線17が分岐される分岐部35の近傍に配設されている。 A seat heater 31, a rear seat room light 32, and a taillight 36 are shown in FIG. 1 as an example of the electrical component 14. The seat heater 31 is disposed on a seat 34 attached to the inside of a passenger compartment 33 on which a passenger takes a seat. The switching unit 21 provided with the switching element 22 for performing energization or de-energization to the seat heater 31 is disposed in the vicinity of the branch portion 35 where the electric wire 17 is branched from the wire harness 13 to the seat heater 31.
 後部座席用ルームライト32は、車室33内の後部座席の天井部寄りの位置に配設されている。後部座席用ルームライト32に対して通電又は断電を実行するスイッチング素子22を備えたスイッチングユニット21は、ワイヤーハーネス13からシートヒータ31へ電線17が分岐される分岐部35の近傍に配設されている。 The rear seat room light 32 is disposed at a position near the ceiling of the rear seat in the passenger compartment 33. The switching unit 21 provided with the switching element 22 for performing energization or disconnection to the rear seat room light 32 is disposed in the vicinity of the branch portion 35 where the electric wire 17 is branched from the wire harness 13 to the seat heater 31. ing.
 テールライト36は車両10の後端部に配設されている。テールライト36に対して通電又は断電を実行するスイッチング素子22については、図示を省略している。 The taillight 36 is disposed at the rear end of the vehicle 10. About the switching element 22 which performs electricity supply or disconnection with respect to the taillight 36, illustration is abbreviate | omitted.
 車室33には、インスツルメントパネル37が配設されている。このインスツルメントパネル37には、電装品14の少なくとも一つに対して通電又は断電を指示する手動スイッチ38が配設されている。手動スイッチ38は、信号線50を介してスイッチング素子22と電気的に接続されている。図1には、シートヒータ31に通電又は断電を指示する手動スイッチ38が、インスツルメントパネル37に配設されている構成が例示されている。本実施形態においては、信号線50はインスツルメントパネル37から床下へと配索されて、複数の電線17と共に電線束18に束ねられている。この信号線50は、電装品14に接続された電線17が束ねられた電線束18とは異なる経路で車両10に配索される構成としてもよい。 An instrument panel 37 is disposed in the passenger compartment 33. The instrument panel 37 is provided with a manual switch 38 for instructing at least one of the electrical components 14 to be energized or disconnected. The manual switch 38 is electrically connected to the switching element 22 via the signal line 50. FIG. 1 exemplifies a configuration in which a manual switch 38 for instructing the seat heater 31 to be energized or disconnected is disposed on the instrument panel 37. In the present embodiment, the signal line 50 is routed from the instrument panel 37 to the floor, and is bundled together with the plurality of wires 17 into the wire bundle 18. The signal line 50 may be arranged on the vehicle 10 along a route different from the bundle of wires 18 in which the wires 17 connected to the electrical component 14 are bundled.
(スイッチングユニット21)
 また、図1に示すように、ワイヤーハーネス13にはスイッチングユニット21が電気的に接続されている。スイッチングユニット21には電装品14に対して通電又は断電を実行するスイッチング素子22が備えられている。
(Switching unit 21)
Further, as shown in FIG. 1, the switching unit 21 is electrically connected to the wire harness 13. The switching unit 21 is provided with a switching element 22 for performing energization or disconnection of the electric component 14.
 図3に示すように、スイッチングユニット21は、ケース23と、ケース23内に収容された回路基板24と、回路基板24に電気的に接続されたコネクタハウジング25と、を備える。 As shown in FIG. 3, the switching unit 21 includes a case 23, a circuit board 24 housed in the case 23, and a connector housing 25 electrically connected to the circuit board 24.
 ケース23は合成樹脂製であって、有底の筒状をなしている。本実施形態では略角筒状をなしている。 The case 23 is made of synthetic resin and has a cylindrical shape with a bottom. In this embodiment, it has a substantially rectangular cylindrical shape.
 図4に示すように、回路基板24は、略長方形状をなす絶縁基板に、プリント配線技術により図示しない導電路が形成されてなる。回路基板24の表面には、スイッチング素子22が、はんだ付け等の公知の手法により回路基板24に形成された導電路に電気的に接続されている。本実施形態においては、スイッチング素子22は機械式リレーとされている。本実施形態には、回路基板24の表面に、2つのスイッチング素子22が横並びに配設されている。なお、スイッチングユニット21に備えられるスイッチング素子22は、1つでもよく、また、3つ以上であってもよい。 As shown in FIG. 4, the circuit board 24 is formed by forming a conductive path (not shown) by a printed wiring technology on a substantially rectangular insulating substrate. The switching element 22 is electrically connected to the conductive path formed on the circuit board 24 by a known method such as soldering on the surface of the circuit board 24. In the present embodiment, the switching element 22 is a mechanical relay. In the present embodiment, two switching elements 22 are disposed side by side on the surface of the circuit board 24. The number of switching elements 22 provided in the switching unit 21 may be one, or three or more.
 コネクタハウジング25は合成樹脂製であって、ケース23の外方に開口するフード部28を備える。フード部28の外壁にはロック部26が外方に突出して形成されている。このロック部26が、ケース23の開口縁部寄りの位置に形成されたロック受け部27と弾性的に係合することにより、ケース23とコネクタハウジング25とが一体に組み付けられるようになっている(図5参照)。 The connector housing 25 is made of synthetic resin, and includes a hood portion 28 opened to the outside of the case 23. A lock 26 is formed on the outer wall of the hood 28 so as to protrude outward. The lock portion 26 elastically engages with the lock receiving portion 27 formed at a position near the opening edge portion of the case 23, whereby the case 23 and the connector housing 25 are integrally assembled. (See Figure 5).
 フード部28には回路基板24に向かって突出する係止突部44が形成されている。係止突部44は回路基板24に形成された貫通孔45に抜け止め状態で貫通されている。これにより、コネクタハウジング25と回路基板24とが組み付けられている。 The hood portion 28 is formed with a locking projection 44 projecting toward the circuit board 24. The locking projection 44 is penetrated through the through hole 45 formed in the circuit board 24 in a state of coming off prevention. Thus, the connector housing 25 and the circuit board 24 are assembled.
 図6に示すように、フード部28の奥壁には複数の金属製の端子29が貫通されている。フード部28の内部には電線17の端部に取り付けられた図示しない相手側端子が挿入される。これにより電線17がスイッチングユニット21に接続されるようになっている。端子29の一方の端部はフード部28の内部に配されており、端子29の他方の端部は奥壁を貫通してコネクタハウジング25の外部に突出した後、回路基板24に向けて略直角に曲げ加工されている。端子29の他方の端部は回路基板24に貫通された状態で、はんだ付け等の公知の手法により、回路基板24に形成された導電路に電気的に接続されている(図6参照)。 As shown in FIG. 6, a plurality of metal terminals 29 are penetrated through the back wall of the hood portion 28. A not-shown mating terminal attached to the end of the electric wire 17 is inserted into the hood portion 28. Thus, the electric wire 17 is connected to the switching unit 21. One end portion of the terminal 29 is disposed inside the hood portion 28, and the other end portion of the terminal 29 penetrates the back wall and protrudes to the outside of the connector housing 25, and then substantially toward the circuit board 24. It is bent at a right angle. The other end of the terminal 29 is electrically connected to a conductive path formed in the circuit board 24 by a known method such as soldering while penetrating the circuit board 24 (see FIG. 6).
(ヒューズ素子39)
 図4に示すように、回路基板24の表面には、合成樹脂製のヒューズ接続部材40が配設されている。ヒューズ接続部材40には、比較的に大きな電流が流される第1ヒューズ素子39A(過電流保護部、ヒューズ素子に相当)が装着される第1ヒューズ装着部41と、比較的に小さな電流が流される第2ヒューズ素子39B(過電流保護部、ヒューズ素子に相当)が装着される第2ヒューズ装着部42とが、回路基板24と反対の方向に開口して形成されている。第1ヒューズ装着部41、及び第2ヒューズ装着部42の内部にはヒューズ接続端子43が収容されている。このヒューズ接続端子43は回路基板24に貫通された状態で、はんだ付け等の公知の手法により、回路基板24に形成された導電路に電気的に接続されている(図6参照)。なお、以下の記載において、第1ヒューズ素子39Aと第2ヒューズ素子39Bとを区別しない場合には、ヒューズ素子39と記載する。
(Fuse element 39)
As shown in FIG. 4, a fuse connecting member 40 made of synthetic resin is disposed on the surface of the circuit board 24. The fuse connecting member 40 has a first fuse mounting portion 41 to which a first fuse element 39A (overcurrent protection portion, corresponding to a fuse element) to which a relatively large current flows is attached, and a relatively small current flows A second fuse mounting portion 42 to which a second fuse element 39B (overcurrent protection portion, corresponding to a fuse element) to be mounted is mounted is formed to open in a direction opposite to the circuit board 24. A fuse connection terminal 43 is accommodated in the first fuse mounting portion 41 and the second fuse mounting portion 42. The fuse connection terminal 43 is electrically connected to a conductive path formed on the circuit board 24 by a known method such as soldering in a state of being penetrated to the circuit board 24 (see FIG. 6). In the following description, when the first fuse element 39A and the second fuse element 39B are not distinguished from one another, they are referred to as a fuse element 39.
 本実施形態においては、ヒューズ接続部材40には、1つの第1ヒューズ装着部41(ヒューズ装着部に相当)と、2つの第2ヒューズ装着部42(ヒューズ装着部に相当)とが形成されている。これにより、スイッチング素子22に流される電流の大きさにしたがって、1つの第1ヒューズ素子39Aと1つの第2ヒューズ素子39Bを用いるか、又は、2つの第2ヒューズ素子39Bを用いるか、を適宜に選択できるようになっている。 In the present embodiment, the fuse connection member 40 is formed with one first fuse mounting portion 41 (corresponding to a fuse mounting portion) and two second fuse mounting portions 42 (corresponding to a fuse mounting portion). There is. Thereby, according to the magnitude of the current supplied to the switching element 22, whether to use one first fuse element 39A and one second fuse element 39B or to use two second fuse elements 39B as appropriate It is possible to select it.
 図7は、ワイヤーハーネスシステム11の概要を示すブロック図である。本実施形態における電源12は、バッテリ、及びオルタネータである。スイッチングユニット21に配設されたヒューズ素子39は、電源12と、スイッチング素子22との間に、電気的に接続されている。なお、ヒューズ素子39は、スイッチング素子22と電装品14との間に電気的に接続される構成としてもよい。 FIG. 7 is a block diagram showing an outline of the wire harness system 11. The power source 12 in the present embodiment is a battery and an alternator. The fuse element 39 disposed in the switching unit 21 is electrically connected between the power supply 12 and the switching element 22. The fuse element 39 may be electrically connected between the switching element 22 and the electrical component 14.
 ヒューズ素子39は、過電流が流された時に溶断するようになっている。これにより、電装品14、又は電線17に過電流が流れることを抑制するようになっている。 The fuse element 39 is fused when an overcurrent is applied. Thereby, it is suppressed that an overcurrent flows into the electrical component 14 or the electric wire 17.
 図7には、1つのスイッチングユニット21の内部に2つのスイッチング素子22と、2つのヒューズ素子39が配設される構成と、1つのスイッチングユニット21の内部に1つのスイッチング素子22と1つのヒューズ素子39が配設される構成が示されている。なお、1つのスイッチングユニット21の内部に、3つ以上のスイッチング素子22と、3つ以上のヒューズ素子39が配設される構成としてもよい。 In FIG. 7, a configuration in which two switching elements 22 and two fuse elements 39 are disposed inside one switching unit 21, and one switching element 22 and one fuse inside one switching unit 21. The arrangement in which the element 39 is arranged is shown. Note that three or more switching elements 22 and three or more fuse elements 39 may be provided in one switching unit 21.
(スイッチングユニット21の取り付け構造)
 車両10には、複数のスイッチングユニット21が配設されている。以下に、車両10へのスイッチングユニット21の取り付け構造の例を示す。スイッチングユニット21の取り付け構造は、下記の構成に限定されるものではない。
(Mounting structure of switching unit 21)
The vehicle 10 is provided with a plurality of switching units 21. Below, the example of the attachment structure of the switching unit 21 to the vehicle 10 is shown. The attachment structure of the switching unit 21 is not limited to the following configuration.
 図2に示すように、スイッチングユニット21は、電線束18を結束するテープ19によって、電線束18と共に結束される構成となっている。換言すると、スイッチングユニット21は、電線束18に対して、テープ19が巻き付けられることによって電線束18に直接的に固定されている。スイッチングユニット21は、テープ19から露出している構成としてもよく、また、テープ19によって電線束18と一体に結束されて、巻回されたテープ19の内部に埋設される構成としてもよい。 As shown in FIG. 2, the switching unit 21 is configured to be bundled together with the wire bundle 18 by a tape 19 that ties the wire bundle 18. In other words, the switching unit 21 is directly fixed to the wire bundle 18 by winding the tape 19 on the wire bundle 18. The switching unit 21 may be configured to be exposed from the tape 19 or may be integrally bundled with the wire bundle 18 by the tape 19 and be embedded in the wound tape 19.
 図2に係るスイッチングユニット21は、ワイヤーハーネス13から電装品14に接続された第1電線17Aを含む電線束18が分岐する分岐部35の近傍に取り付けられている。 The switching unit 21 according to FIG. 2 is attached in the vicinity of the branch portion 35 where the wire bundle 18 including the first electric wire 17A connected from the wire harness 13 to the electrical component 14 branches.
 また、図1に示すように、車室33の内部にスイッチングユニット21を配設する構成としてもよい。本実施形態においては、シートヒータ31に対して通電又は断電を実行するスイッチング素子22を有するスイッチングユニット21が、車室33に配されたシート34の下方に取り付けられている。スイッチングユニット21は、車室33内の任意の位置に配設することができる。本実施形態に係るスイッチング素子22は、比較的に小型なので、通電又は断電を実行する際に作動音が比較的に小さい。これにより、搭乗者が搭乗する車室33内に配設することができるようになっている。この結果、車両10内の収容スペースを有効に利用できるので、ワイヤーハーネスシステム11を全体として小型化できる。 Further, as shown in FIG. 1, the switching unit 21 may be disposed inside the passenger compartment 33. In the present embodiment, a switching unit 21 having a switching element 22 for performing energization or de-energization to the seat heater 31 is attached below the seat 34 disposed in the passenger compartment 33. The switching unit 21 can be disposed at any position in the passenger compartment 33. Since the switching element 22 according to the present embodiment is relatively small, the operation noise is relatively small when performing energization or disconnection. Thereby, it can arrange | position in the compartment 33 which a passenger | crew boarded. As a result, since the storage space in the vehicle 10 can be effectively utilized, the wire harness system 11 can be miniaturized as a whole.
(本実施形態の作用、効果)
 続いて、本実施形態の作用、効果について説明する。本実施形態に係るワイヤーハーネスシステム11は、車両10に搭載されると共に複数の電線17が束ねられた電線束18を備えたワイヤーハーネス13と、ワイヤーハーネス13に電気的に接続された電装品14と、ワイヤーハーネス13に電気的に接続されると共に電線束18に直接的に又は間接的に取り付けられるものであって、電装品14に対して通電又は断電を実行するスイッチング素子22を備えたスイッチングユニット21と、を備え、スイッチングユニット21は、更に、電装品14又は電線17に過電流が流れることを抑制するヒューズ素子39を備える。
(Operation and effect of the present embodiment)
Subsequently, the operation and effects of the present embodiment will be described. A wire harness system 11 according to the present embodiment includes a wire harness 13 mounted on a vehicle 10 and provided with a wire bundle 18 in which a plurality of wires 17 are bundled, and an electrical component 14 electrically connected to the wire harness 13. And a switching element 22 electrically connected to the wire harness 13 and directly or indirectly attached to the wire bundle 18 and performing energization or disconnection of the electrical component 14. The switching unit 21 further includes a fuse element 39 that suppresses the flow of an overcurrent in the electrical component 14 or the electric wire 17.
 本実施形態によれば、電装品14の通電又は断電を実行するスイッチング素子22を、ワイヤーハーネス13の電線束18に取り付けることができるので、ワイヤーハーネスシステム11を小型化できる。 According to the present embodiment, since the switching element 22 for performing energization or disconnection of the electrical component 14 can be attached to the wire bundle 18 of the wire harness 13, the wire harness system 11 can be miniaturized.
 また、本実施形態によれば、スイッチングユニット21はスイッチング素子22を備える。これにより、従来、電気接続箱に配設されていたスイッチング素子22を省略できるので、電気接続箱16の大型化を抑制することが可能となり、更には、電気接続箱16を省略することもできる。 Further, according to the present embodiment, the switching unit 21 includes the switching element 22. As a result, since the switching element 22 conventionally provided in the electrical connection box can be omitted, the increase in size of the electrical connection box 16 can be suppressed, and furthermore, the electrical connection box 16 can be omitted. .
 更に、スイッチングユニット21はヒューズ素子39を備える。これにより、従来、電気接続箱に配設されていたヒューズ素子を省略できるので、電気接続箱16の大型化を抑制することが可能となり、更には、電気接続箱16を省略することもできる。 Furthermore, the switching unit 21 includes a fuse element 39. As a result, the fuse element conventionally provided in the electrical connection box can be omitted, so that the increase in size of the electrical connection box 16 can be suppressed, and furthermore, the electrical connection box 16 can be omitted.
 また、本実施形態によれば、電装品14、又は電線17に過電流が流れた場合には、ヒューズ素子39が溶断するので、電装品14、又は電線17に過電流が流れることを確実に抑制することができる。 Further, according to the present embodiment, when the overcurrent flows in the electric component 14 or the electric wire 17, the fuse element 39 is melted and cut, so that the overcurrent flows in the electric component 14 or the electric wire 17 reliably. It can be suppressed.
 また、本実施形態によれば、スイッチングユニット21はヒューズ素子39が装着されるヒューズ装着部を備える。これにより、ヒューズ素子39が溶断した場合に、ヒューズ素子39を容易に交換することができる。 Further, according to the present embodiment, the switching unit 21 includes a fuse mounting portion to which the fuse element 39 is mounted. Thus, when fuse element 39 is fused, fuse element 39 can be easily replaced.
 また、本実施形態によれば、スイッチングユニット21は、複数の電線17を束ねるテープ19によって電線束18に結束されている。これにより、スイッチングユニット21は電線束18に結束されているので、ワイヤーハーネス13の外側に突出しないようになっている。この結果、ワイヤーハーネス13を小型化することができる。 Further, according to the present embodiment, the switching unit 21 is bound to the wire bundle 18 by the tape 19 that bundles the plurality of wires 17. Thereby, since the switching unit 21 is bound to the wire bundle 18, it does not protrude outside the wire harness 13. As a result, the wire harness 13 can be miniaturized.
 <他の実施形態>
 本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
 (1)本実施形態においては、スイッチング素子22は機械式リレーとしたが、これに限られず、スイッチング素子22はFET、IGBT等の半導体スイッチング素子でもよい。また、1つのスイッチングユニット21内に、機械式リレーと半導体スイッチング素子とが配設される構成としてもよい。
Other Embodiments
The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the present embodiment, the switching element 22 is a mechanical relay. However, the present invention is not limited to this. The switching element 22 may be a semiconductor switching element such as an FET or an IGBT. Further, the mechanical relay and the semiconductor switching element may be disposed in one switching unit 21.
 (2)本実施形態においては、過電流保護部としてヒューズ素子39を用いたが、これに限られず、過電流保護部は、スイッチングユニット21に配設された半導体スイッチング素子に設けられて半導体スイッチング素子のオンオフを制御する過電流保護回路としてもよい。また、過電流保護部は、プログラムを実行することにより、スイッチングユニット21に配設された半導体スイッチング素子のオンオフを制御するマイコンとしてもよい。 (2) In the present embodiment, the fuse element 39 is used as the overcurrent protection unit. However, the present invention is not limited to this. The overcurrent protection unit is provided in the semiconductor switching element disposed in the switching unit 21 to perform semiconductor switching An overcurrent protection circuit may be used to control the on / off of the element. In addition, the overcurrent protection unit may be a microcomputer that controls on / off of the semiconductor switching element disposed in the switching unit 21 by executing a program.
 (3)ヒューズ素子39は、回路基板24に形成された導電路に、ろう付け、はんだ付け等により直接に接続される構成としてもよい。 (3) The fuse element 39 may be directly connected to the conductive path formed on the circuit board 24 by brazing, soldering or the like.
 (4)本実施形態においては、全てのスイッチング素子22、及び全てのヒューズ素子39がスイッチングユニット21に配設されて、電線束18に取付けられる構成としたが、これに限られず、複数のスイッチング素子22の一部、又は複数のヒューズ素子39の一部が電気接続箱16に配設される構成としてもよい。 (4) In the present embodiment, all the switching elements 22 and all the fuse elements 39 are disposed in the switching unit 21 and attached to the wire bundle 18. However, the present invention is not limited to this. A part of the element 22 or a part of the plurality of fuse elements 39 may be disposed in the electric connection box 16.
 (5)結束部材は結束バンドでもよい。結束バンドは合成樹脂製でもよく、金属製であってもよい。 (5) The binding member may be a binding band. The binding band may be made of synthetic resin or metal.
 (6)手動スイッチ38は、インスツルメントパネル37に配設する構成としたが、これに限られず、ドアのアームレストに設けてもよく、必要に応じて任意の位置に配設することができる。また、手動スイッチ38に代えてボデーECUなどの電子制御ユニットからスイッチングユニット21を制御する構成としてもよい。 (6) The manual switch 38 is provided on the instrument panel 37. However, the present invention is not limited to this. The manual switch 38 may be provided on the armrest of the door, and can be provided at any position as required. . Further, instead of the manual switch 38, the switching unit 21 may be controlled from an electronic control unit such as a body ECU.
 (7)本実施形態においては、スイッチングユニット21は電線束18にテープ19によって直接的に取り付けられる構成としたが、これに限られず、スイッチングユニット21は、スイッチングユニット21のコネクタハウジング25から導出された電線17を介して電線束18に間接的に取り付けられる構成としてもよい。このようにすれば、振動が比較的に少ない部分に取り付ける際に、テープ19による結束作業が不要となるので、作業効率が向上する。 (7) In the present embodiment, the switching unit 21 is directly attached to the wire bundle 18 by the tape 19. However, the present invention is not limited to this. The switching unit 21 is derived from the connector housing 25 of the switching unit 21. It may be configured to be indirectly attached to the wire bundle 18 via the wire 17. In this way, when attaching to a portion where the vibration is relatively small, the work of bundling with the tape 19 becomes unnecessary, so the working efficiency is improved.
 (8)本実施形態では、1つのスイッチング素子22は1つの電装品14に接続される構成としたが、これに限られず、1つのスイッチング素子22が複数の電装品14に、並列に又は直列に接続される構成としてもよく、また、複数のスイッチング素子22が1つの電装品14に、並列に又は直列に接続される構成としてもよく、また、複数のスイッチング素子22が複数の電装品14に、並列に又は直列に接続される構成としてもよい。 (8) In the present embodiment, one switching element 22 is connected to one electric component 14, but the present invention is not limited to this. One switching element 22 may be connected in parallel or in series to a plurality of electric components 14. The plurality of switching elements 22 may be connected in parallel or in series to one electric component 14, and the plurality of switching elements 22 may be connected to a plurality of electric components 14. May be connected in parallel or in series.
 10:車両
 11:ワイヤーハーネスシステム
 13:ワイヤーハーネス
 14:電装品
 17:電線
 19:テープ(結束部材)
 21:スイッチングユニット
 22:スイッチング素子
 39:ヒューズ素子
 39A:第1ヒューズ素子(過電流保護部)
 39B:第2ヒューズ素子(過電流保護部)
 41:第1ヒューズ装着部(ヒューズ装着部)
 42:第2ヒューズ装着部(ヒューズ装着部)
10: Vehicle 11: Wire harness system 13: Wire harness 14: Electrical components 17: Electric wire 19: Tape (tie member)
21: switching unit 22: switching element 39: fuse element 39A: first fuse element (overcurrent protection unit)
39B: Second fuse element (overcurrent protection unit)
41: First fuse mounting portion (fuse mounting portion)
42: Second fuse mounting portion (fuse mounting portion)

Claims (4)

  1.  車両に搭載されると共に複数の電線が束ねられた電線束を備えたワイヤーハーネスと、
     前記ワイヤーハーネスに電気的に接続された電装品と、
     前記ワイヤーハーネスに電気的に接続されると共に前記電線束に直接的に又は間接的に取り付けられるものであって、前記電装品に対して通電又は断電を実行するスイッチング素子を備えたスイッチングユニットと、を備え、
     前記スイッチングユニットは、更に、前記電装品又は前記電線に過電流が流れることを抑制する過電流保護部を備えたワイヤーハーネスシステム。
    A wire harness having a wire bundle mounted on a vehicle and bundled with a plurality of wires;
    Electrical components electrically connected to the wire harness;
    A switching unit comprising a switching element electrically connected to the wire harness and directly or indirectly attached to the wire bundle, for performing energization or disconnection of the electrical component. , And
    The wire harness system according to claim 1, wherein the switching unit further includes an overcurrent protection unit configured to suppress an overcurrent from flowing in the electrical component or the electric wire.
  2.  前記過電流保護部は、過電流が流された時に溶断するヒューズ素子である請求項1に記載のワイヤーハーネスシステム。 The wire harness system according to claim 1, wherein the overcurrent protection unit is a fuse element that melts when an overcurrent flows.
  3.  前記スイッチングユニットは前記ヒューズ素子が装着されるヒューズ装着部を備える請求項2に記載のワイヤーハーネスシステム。 The wire harness system according to claim 2, wherein the switching unit comprises a fuse mounting unit to which the fuse element is mounted.
  4.  前記スイッチングユニットは結束部材によって前記電線束に直接的に取り付けられている請求項1ないし請求項3のいずれか一項に記載のワイヤーハーネスシステム。 The wire harness system according to any one of claims 1 to 3, wherein the switching unit is directly attached to the wire bundle by a binding member.
PCT/JP2013/064601 2012-09-18 2013-05-27 Wire harness system WO2014045641A1 (en)

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Citations (2)

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JPH11203952A (en) * 1998-01-12 1999-07-30 Yazaki Corp Vehicular power line and abnormality detection device for vehicular power line
JP2008284980A (en) * 2007-05-17 2008-11-27 Furukawa Electric Co Ltd:The Wire harness system

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JPH08329821A (en) * 1995-05-29 1996-12-13 Sumitomo Wiring Syst Ltd Circuit protecting device for automobile wire harness
JP2010105517A (en) * 2008-10-30 2010-05-13 Autonetworks Technologies Ltd Power source wire for vehicle wiring

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Publication number Priority date Publication date Assignee Title
JPH11203952A (en) * 1998-01-12 1999-07-30 Yazaki Corp Vehicular power line and abnormality detection device for vehicular power line
JP2008284980A (en) * 2007-05-17 2008-11-27 Furukawa Electric Co Ltd:The Wire harness system

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