JP2006298084A - Structure for mounting electronic control unit on wire harness - Google Patents

Structure for mounting electronic control unit on wire harness Download PDF

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JP2006298084A
JP2006298084A JP2005120632A JP2005120632A JP2006298084A JP 2006298084 A JP2006298084 A JP 2006298084A JP 2005120632 A JP2005120632 A JP 2005120632A JP 2005120632 A JP2005120632 A JP 2005120632A JP 2006298084 A JP2006298084 A JP 2006298084A
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ecu
wire harness
control unit
wire
electronic control
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Hiroyuki Kataoka
宏之 片岡
Mitsuo Takemura
満夫 竹村
Fumio Maeda
文雄 前田
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Sumitomo Wiring Systems Ltd
AutoNetworks Technologies Ltd
Sumitomo Electric Industries Ltd
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Priority to JP2005120632A priority Critical patent/JP2006298084A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To improve mounting workability of ECU (Electronic Control Unit) and wire harness on a vehicle. <P>SOLUTION: A substrate 11 of the ECU10 mounted on the vehicle is constructed in such a shape as to sandwich a conductive foil 12 formed into a prescribed circuit shape between flexible insulated resin sheets 14, 15. Furthermore, the ECU10 is secured on the wire harness which concentrates a wire cluster 31 connected with a circuit body 13 of the ECU10 by winding adhesive tape T around it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ワイヤハーネスへの電子制御ユニット取付構造を示し、詳しくは、車両に搭載される電子制御ユニットの固定構造を改良して、電子制御ユニットと該電子制御ユニットに接続されるワイヤハーネスの車両への組み付け作業性の向上を図るものである。   The present invention shows an electronic control unit mounting structure to a wire harness, and more specifically, an electronic control unit and a wiring harness connected to the electronic control unit are improved by improving the fixing structure of the electronic control unit mounted on a vehicle. It is intended to improve the assembly workability to the vehicle.

自動車などの車両には、動力源となるエンジンを制御するエンジン電子制御ユニット（ＥＣＵ）のほか、多数のＥＣＵが搭載されている。特に、近年、自動車の高付加価値化により電装品が急増し、かつ、オプションの電装品も多数あり、これら電装品を制御するためのＥＣＵも増加している。   A vehicle such as an automobile is equipped with many ECUs in addition to an engine electronic control unit (ECU) that controls an engine serving as a power source. In particular, in recent years, the number of electrical components has increased rapidly due to the high added value of automobiles, and there are many optional electrical components, and the number of ECUs for controlling these electrical components has also increased.

これらのＥＣＵは、ワイヤハーネスを介して他の回路基板等と電気接続される。特開２００３−３２４８２４号（特許文献１）は、ＥＣＵとワイヤハーネスとの接続構造の一例を示しており、図１０に示すように、ワイヤハーネス１a、１ｂ、１ｃの端末にコネクタ２（２ａ、２ｂ、２ｃ）を接続するとともに、表面に回路体を形成したＥＣＵ基板（図示せず）にもコネクタ４を実装し、ワイヤハーネス側コネクタ２を収容したコネクタホルダー３を、前記ＥＣＵ基板を収容した筐体５のコネクタ挿入口６に結合して、ワイヤハーネス１側のコネクタ２をＥＣＵ側コネクタ４と嵌合接続させている。   These ECUs are electrically connected to other circuit boards and the like via a wire harness. Japanese Patent Application Laid-Open No. 2003-324824 (Patent Document 1) shows an example of a connection structure between an ECU and a wire harness, and as shown in FIG. 10, a connector 2 (2a, 2b, 2c) and a connector 4 mounted on an ECU board (not shown) having a circuit body formed on the surface thereof, and the connector holder 3 containing the wire harness side connector 2 is housed in the ECU board The connector 2 on the wire harness 1 side is connected to the ECU side connector 4 by being coupled to the connector insertion port 6 of the housing 5.

しかしながら、前述のとおり、近年の車両には多数のＥＣＵが搭載されるため、図１１に示すように、ワイヤハーネス幹線１からは各ＥＣＵと接続する多数の支線１ａ、１ｂ等が分岐され、該ワイヤハーネス１を車両に組み付ける際にこれら支線１ａ、１ｂが引っ掛かるなどして支障となり、組み付け作業性が低下するという問題がある。また、一般に、ＥＣＵは車両に固定されるが、そのＥＣＵが増加傾向にあるため、固定工数も増加するうえ、固定用の金具コストが嵩むという問題がある。   However, as described above, since a large number of ECUs are mounted in recent vehicles, as shown in FIG. 11, a large number of branch lines 1a, 1b and the like connected to each ECU are branched from the wire harness main line 1, When the wire harness 1 is assembled to the vehicle, the branch lines 1a and 1b are hindered, resulting in a problem that the assembling workability is lowered. In general, the ECU is fixed to the vehicle. However, since the ECU tends to increase, there are problems that the fixing man-hours increase and the cost of fixing metal fittings increases.

特開２００３−３２４８２４号公報JP 2003-324824 A

本発明は前記問題に鑑みてなされたもので、車両に搭載されるワイヤハーネスとＥＣＵの取り付け作業性を向上させることができる、ワイヤハーネスへの電子制御ユニット（ＥＣＵ）取付構造の提供を課題としている。   The present invention has been made in view of the above problems, and it is an object of the present invention to provide an electronic control unit (ECU) mounting structure to a wire harness that can improve the workability of mounting a wire harness mounted on a vehicle and an ECU. Yes.

前記課題を解決するために、本発明は、車両に搭載される電子制御ユニット（ＥＣＵ）の基板を、所要回路形状に形成した導電箔を可撓性を有する絶縁樹脂シートで挟んだフレキシブル基板として構成し、
前記ＥＣＵの回路と接続する電線群を集束しているワイヤハーネスの外周面に、前記ＥＣＵをテープ巻きあるいは結束バンドで固定していることを特徴とするワイヤハーネスの電子制御ユニット取付構造を提供している。 In order to solve the above-mentioned problems, the present invention provides a flexible substrate in which a substrate of an electronic control unit (ECU) mounted on a vehicle is sandwiched between conductive foils formed in a required circuit shape with flexible insulating resin sheets. Configure
Provided is an electronic control unit mounting structure for a wire harness, characterized in that the ECU is fixed with a tape or a binding band on an outer peripheral surface of a wire harness converging a group of electric wires connected to a circuit of the ECU. ing.

このようにＥＣＵをフレキシブルなものとしてＦＰＣ化することにより、その可撓性を利用して、ＥＣＵをワイヤハーネスの外周面の湾曲に沿わせ、密着固定できる。従って、ＥＣＵを車両に固定する作業が不要となり、工数と金具コストを削減できる。また、ＥＣＵを薄型化することにより、ワイヤハーネスの徒太化を極力抑制できる。さらに、ＥＣＵに接続される電線群を、ワイヤハーネス幹線から分岐して外方に引き出す必要がなく、支線が幹線から飛び出さないため、ワイヤハーネスの組み付け作業において支線が邪魔になることなく、作業性も向上する。   By making the ECU into a flexible FPC as described above, the ECU can be closely attached and fixed along the curve of the outer peripheral surface of the wire harness by utilizing the flexibility. Therefore, the work of fixing the ECU to the vehicle is not necessary, and the man-hours and the metal fitting costs can be reduced. Further, by making the ECU thinner, it is possible to suppress the thickening of the wire harness as much as possible. In addition, there is no need to branch out the wire group connected to the ECU from the wire harness trunk line and pull it outward, and the branch line does not jump out of the trunk line, so the branch line does not get in the way when assembling the wire harness. Also improves.

前記ＥＣＵの導電箔からなる回路端末を前記ワイヤハーネスの電線端末から露出した芯線と半田付け、抵抗溶接あるいは超音波溶接で固着し、
あるいは、前記ＥＣＵの回路端末に実装したコネクタを介して前記ワイヤハーネスの電線を接続している。 Solder the core terminal exposed from the electric wire terminal of the wire harness, and fix it by resistance welding or ultrasonic welding.
Or the electric wire of the said wire harness is connected via the connector mounted in the circuit terminal of the said ECU.

前記ＥＣＵの回路には電子部品を実装し、かつ、前記基板と該基板上の電子部品を囲む可撓性を有するカバーを設けている。これにより、ＥＣＵのみでなく前記カバーも、ワイヤハーネス外周面に沿わせて湾曲させることができるため、テープ巻き等によりワイヤハーネスと一体化させて巻きつけ固定できる。前記カバーの材料としてもフレキシブルな絶縁樹脂材が好適に用いられる。   An electronic component is mounted on the circuit of the ECU, and a flexible cover surrounding the electronic component on the substrate and the substrate is provided. As a result, not only the ECU but also the cover can be curved along the outer peripheral surface of the wire harness, so that it can be wound and fixed integrally with the wire harness by tape winding or the like. As the cover material, a flexible insulating resin material is preferably used.

前記ＥＣＵの導電箔からなる回路の一端あるいは両端末に前記ワイヤハーネスの電線を接続している。   An electric wire of the wire harness is connected to one end or both ends of a circuit made of conductive foil of the ECU.

１つのＥＣＵの幅が、取り付けるワイヤハーネスの外周よりも大きい場合は、該ＥＣＵを複数個数に分割し、ワイヤハーネスの長さ方向に間隔をあけて取り付け、分割されたＥＣＵの回路はワイヤハーネスの電線を介して接続してもよい。   When the width of one ECU is larger than the outer circumference of the wire harness to be attached, the ECU is divided into a plurality of pieces and attached at intervals in the length direction of the wire harness. You may connect via an electric wire.

なお、大きな面積を必要とするＥＣＵや多数のコネクタを必要とするＥＣＵでも、そのＥＣＵの幅がワイヤハーネスの外周よりも小さい場合は、該ＥＣＵを複数の小幅のＥＣＵに分割し、これら小幅のＥＣＵをワイヤハーネスの周方向に並置して簀巻き状に巻きつけることにより、ワイヤハーネスの外周面に沿わせて密着固定できる。   Even in an ECU that requires a large area or an ECU that requires a large number of connectors, if the width of the ECU is smaller than the outer periphery of the wire harness, the ECU is divided into a plurality of narrow ECUs. By juxtaposing the ECU in the circumferential direction of the wire harness and winding it in a wound manner, the ECU can be tightly fixed along the outer peripheral surface of the wire harness.

上述したように、本発明によれば、ＥＣＵは、該ＥＣＵと接続する電線群を集束するワイヤハーネスの外周に巻きつけ固定されるため、ＥＣＵの車両への固定作業や固定金具コストを削減できる。また、各ＥＣＵと接続する電線群を、ワイヤハーネス幹線から引き出す必要がないため、幹線から支線が飛び出すこともなく、ワイヤハーネス組み付けの作業性を向上させることができる。   As described above, according to the present invention, since the ECU is wound around and fixed to the outer periphery of the wire harness that converges the electric wire group connected to the ECU, the fixing work of the ECU to the vehicle and the cost of the fixing bracket can be reduced. . Moreover, since it is not necessary to draw out the electric wire group connected with each ECU from the wire harness main line, the branch line does not jump out from the main line, and the workability of assembling the wire harness can be improved.

さらに、ＥＣＵに電子部品を実装している場合でも、可撓性を有するカバーを取り付けることにより、ワイヤハーネス外周に密着させて巻きつけ固定することができる。さらにまた、ＥＣＵが大きな面積を有する場合や、多数のコネクタを必要とする場合でも、ＥＣＵを複数の小幅のＥＣＵに分割してワイヤハーネス外周上に間隔をあけて並置し、各ＥＣＵをワイヤハーネスの電線を介して接続することにより、ワイヤハーネスの外周に巻きつけ固定することができる。   Furthermore, even when an electronic component is mounted on the ECU, by attaching a flexible cover, the electronic component can be tightly attached to the outer periphery of the wire harness. Furthermore, even when the ECU has a large area or requires a large number of connectors, the ECU is divided into a plurality of narrow ECUs and arranged side by side on the outer periphery of the wire harness, and each ECU is connected to the wire harness. By connecting through the electric wire, it can be wound and fixed around the outer periphery of the wire harness.

以下、本発明の実施形態を図面を参照して説明する。
図１乃至図４は、本発明の第１実施形態に係るワイヤハーネスへの電子制御ユニット（ＥＣＵ）の取付構造を示しており、自動車に搭載されるＥＣＵ１０を、ワイヤハーネス３０の支線である電線群３１と接続している。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an attachment structure of an electronic control unit (ECU) to a wire harness according to the first embodiment of the present invention, and an electric wire that is a branch line of the wire harness 30 is connected to the ECU 10 mounted on an automobile. It is connected to the group 31.

前記ＥＣＵ１０の基板１１は、図２に示すように、導電箔１２を所要回路形状にパターン形成してなる回路体１３の表裏両面を、ポリエチレンテレフタレート等の可撓性を有する絶縁樹脂シート１４、１５で挟み固着して形成している。この基板１１は、幅Ｗ１が短く、長さＬ１が長い、長方形状としている。   As shown in FIG. 2, the substrate 11 of the ECU 10 has insulating resin sheets 14 and 15 having flexibility such as polyethylene terephthalate on both front and back surfaces of a circuit body 13 formed by patterning a conductive foil 12 in a required circuit shape. It is formed by pinching and fixing. The substrate 11 has a rectangular shape with a short width W1 and a long length L1.

前記導電箔１２からなる回路体１３の長さＬ１方向の一端では、図２に示すように、前記表側絶縁樹脂シート１４を剥離して回路体１３を露出し、この回路体１３の端末にコネクタ１６のコネクタ端子１７を半田付けＨで固着している。また、表側絶縁樹脂シート１４は、チップ等の電子部品１８の実装箇所でも剥離されて内部の回路体１３を露出し、そこに電子部品１８を半田付けＨで実装している。   At one end in the length L1 direction of the circuit body 13 made of the conductive foil 12, as shown in FIG. 2, the front-side insulating resin sheet 14 is peeled to expose the circuit body 13, and a connector is connected to the end of the circuit body 13 Sixteen connector terminals 17 are fixed by soldering H. Further, the front-side insulating resin sheet 14 is peeled off even at the mounting position of the electronic component 18 such as a chip to expose the internal circuit body 13, and the electronic component 18 is mounted thereon by soldering H.

前記ＥＣＵ１０には、図３（Ａ）（Ｂ）に示すように、ＥＣＵ基板１１と実装された前記電子部品１８とを囲み、内包するように、絶縁樹脂からなる可撓性を有する筐体のカバー２１を取り付けている。該カバー２１は、ＥＣＵ基板１１に実装された前記コネクタ１６までは内包しないが、該コネクタ１６の首下まで、即ち、前記コネクタ端子１７と半田接続された回路体１３の端末露出部分まで覆うように取り付けられる。   As shown in FIGS. 3A and 3B, the ECU 10 includes a flexible casing made of an insulating resin so as to surround and enclose the ECU board 11 and the mounted electronic component 18. A cover 21 is attached. The cover 21 does not include the connector 16 mounted on the ECU board 11, but covers the bottom of the connector 16, that is, the terminal exposed portion of the circuit body 13 soldered to the connector terminal 17. Attached to.

前記ＥＣＵ１０の前記ワイヤハーネス３０への取付作業は、まず、図３（Ａ）（Ｂ）に示すように、前記電線群３１の端末に接続したメス端子２０をコネクタ１９に嵌合接続し、該コネクタ１９を前記ＥＣＵ側コネクタ１６に嵌合接続して、ＥＣＵ１０の回路体１３と電線群３１とを接続する。次に、前記カバー２１が取り付けられたＥＣＵ１０を、長さＬ１方向がワイヤハーネス幹線３０の長さ方向と平行となるように、該ワイヤハーネス幹線３０の外周上に載置し、図４に示すように、ワイヤハーネス幹線３０の外周面に沿うように撓らせて密着させ、図１に示すように、該ＥＣＵ１０と電線群３１の上から粘着テープＴを巻きつけて、ＥＣＵ１０をワイヤハーネス幹線３０の外周面に巻きつけ固定する。   As shown in FIGS. 3 (A) and 3 (B), first, the ECU 10 is attached to the wire harness 30 by fitting the female terminal 20 connected to the end of the wire group 31 to the connector 19, The connector 19 is fitted and connected to the ECU-side connector 16 to connect the circuit body 13 of the ECU 10 and the wire group 31. Next, the ECU 10 to which the cover 21 is attached is placed on the outer periphery of the wire harness trunk line 30 so that the length L1 direction is parallel to the length direction of the wire harness trunk line 30, and is shown in FIG. As shown in FIG. 1, the adhesive tape T is wound around the ECU 10 and the electric wire group 31 so that the ECU 10 is connected to the wire harness main line. It is wound around the outer peripheral surface of 30 and fixed.

上記ＥＣＵ取付構造により、ＥＣＵ１０を車体側に固定する必要がなくなるため、固定金具と車体固定作業が不要となり、作業性が向上するとともにコスト削減を図ることができる。また、ＥＣＵ１０とともに、該ＥＣＵ１０に接続される電線群３１（支線）も、前記粘着テープＴでワイヤハーネス幹線３０に巻きつけられるため、電線群３１がワイヤハーネス幹線３０から飛び出して他の車載部品等に引っ掛かるなどの支障がなくなり、ワイヤハーネス３０の組み付け作業性も向上する。   With the ECU mounting structure, it is not necessary to fix the ECU 10 to the vehicle body side, so that the fixing bracket and the vehicle body fixing work are not required, so that the workability is improved and the cost can be reduced. Further, together with the ECU 10, the electric wire group 31 (branch line) connected to the ECU 10 is also wound around the wire harness main line 30 with the adhesive tape T. Thus, there is no obstacle such as being caught on the wire harness, and the workability of assembling the wire harness 30 is also improved.

さらに、ＥＣＵ基板１１に実装された電子部品１８を覆うカバー２１も可撓性を備えているため、ＥＣＵ１０とカバー２１とをワイヤハーネス幹線３０の外周面の湾曲に沿わせて密着させることができ、ワイヤハーネス３０の徒太化を抑制することができる。   Furthermore, since the cover 21 that covers the electronic component 18 mounted on the ECU board 11 is also flexible, the ECU 10 and the cover 21 can be brought into close contact with the curvature of the outer peripheral surface of the wire harness main line 30. The thickening of the wire harness 30 can be suppressed.

図５および図６は、本発明の第２実施形態を示し、ＥＣＵ１０の回路体１３の両端に電線群３１、３２を接続している。   5 and 6 show a second embodiment of the present invention, in which electric wire groups 31 and 32 are connected to both ends of the circuit body 13 of the ECU 10.

詳しくは、前記ＥＣＵ１０の基板１１の長さＬ２の一端側では、露出させた回路体１３にコネクタ１６−１を実装し、他端では回路体１３にコネクタ１６−２を実装し、それぞれコネクタ端子１７−１、１７−２と回路体１３とを半田付けで接続している。このＥＣＵ１０をワイヤハーネス幹線３０の外周面上に配置するときは、前記ＥＣＵ基板１１の長さＬ２方向が、ワイヤハーネス幹線３０の長さ方向と平行となるように配置する。   Specifically, the connector 16-1 is mounted on the exposed circuit body 13 at one end of the length L2 of the board 11 of the ECU 10, and the connector 16-2 is mounted on the circuit body 13 at the other end. 17-1, 17-2 and the circuit body 13 are connected by soldering. When the ECU 10 is arranged on the outer peripheral surface of the wire harness main line 30, the ECU board 11 is arranged such that the length L2 direction of the ECU board 11 is parallel to the length direction of the wire harness main line 30.

電線群３１の端末にはコネクタ１９−１を、電線群３２の端末にはコネクタ１９−２を接続し、コネクタ１９−１を前記ＥＣＵ側コネクタ１６−１に、コネクタ１９−２を前記ＥＣＵ１０側コネクタ１６−２に、それぞれ嵌合接続したうえで、該ＥＣＵ１０と電線群３１、３２の上から粘着テープＴを巻きつけ、ワイヤハーネス３０と一体化させて固定する。なお、図５中、ＥＣＵ１０に巻き付けて被覆する粘着テープＴの図示は省略して示している。   The connector 19-1 is connected to the end of the wire group 31, the connector 19-2 is connected to the end of the wire group 32, the connector 19-1 is connected to the ECU side connector 16-1, and the connector 19-2 is connected to the ECU 10 side. The connector 16-2 is fitted and connected, and then the adhesive tape T is wound around the ECU 10 and the wire groups 31 and 32, and the wire harness 30 is integrated and fixed. In FIG. 5, the illustration of the adhesive tape T that is wound around and covered by the ECU 10 is omitted.

図７および図８は本発明の第三実施形態を示し、幅の広いＦＰＣ基板２２上にＥＣＵ１０の一端側に５束の電線群３１〜３５を接続している。   7 and 8 show a third embodiment of the present invention, in which five bundles of wire groups 31 to 35 are connected to one end of the ECU 10 on a wide FPC board 22.

前記ＦＰＣ基板２２の幅Ｗ３で、ワイヤハーネス幹線３０の外周よりも小さく、このＦＰＣ基板２２上に、５つの小幅の小ブロックＥＣＵ１０−１〜１０−２を設けている。各ＥＣＵ１０−１〜１０−５の一端側には、図８にも示すように、コネクタ１６−１〜１６−５を一つずつ実装し、それぞれのコネクタ端子１７−１〜１７−５を各回路体１３の端末に半田付けで接続している。また、各ＥＣＵ１０−１〜１０−５には、電子部品１８を覆うためのカバー２１−１〜２１−５が取り付けられている。このように夫々カバー２１−１〜２１−５が取り付けられた小ブロックＥＣＵ１０−１〜１０−５を、コネクタ１６−１〜１６−５が同一側に位置するように１枚のＦＰＣ基板２２上に並設している。   A width W3 of the FPC board 22 is smaller than the outer periphery of the wire harness main line 30, and five small block ECUs 10-1 to 10-2 having a small width are provided on the FPC board 22. As shown in FIG. 8, one connector 16-1 to 16-5 is mounted on one end side of each ECU 10-1 to 10-5, and each connector terminal 17-1 to 17-5 is connected to each ECU 10-1 to 10-5. The terminal of the circuit body 13 is connected by soldering. Further, covers 21-1 to 21-5 for covering the electronic component 18 are attached to the respective ECUs 10-1 to 10-5. In this way, the small block ECUs 10-1 to 10-5 to which the covers 21-1 to 21-5 are respectively attached are placed on one FPC board 22 so that the connectors 16-1 to 16-5 are located on the same side. Side by side.

前記電線群３１〜３５の端末にはコネクタ１９−１〜１９−５を接続しておくと共に、連結された前記小ブロックＥＣＵ１０−１〜１０−５を、図７（Ａ）（Ｂ）に示すように、ワイヤハーネス幹線３０の外周面に簀巻き状に巻きつけ、各コネクタ１６−１〜１６−５に、前記電線側コネクタ１９−１〜１９−５を嵌合接続して、電線群３１〜３５をＥＣＵ１０（１０−１〜１０−５）の回路体１３に接続する。最後に、ＥＣＵ１０（１０−１〜１０−５）と電線群３１〜３５の上から粘着テープＴを巻きつけ、該ＥＣＵ１０をワイヤハーネス３０と一体化させて固定する。
なお、図９においては小ブロックＥＣＵ１０−１〜１０−５に巻き付ける粘着テープＴの図示は省略している。 Connectors 19-1 to 19-5 are connected to the terminals of the wire groups 31 to 35, and the small block ECUs 10-1 to 10-5 connected to each other are shown in FIGS. 7A and 7B. As described above, the wire-side connectors 19-1 to 19-5 are fitted and connected to the connectors 16-1 to 16-5, and wound around the outer peripheral surface of the wire harness main line 30, and the wire groups 31 to 35 is connected to the circuit body 13 of the ECU 10 (10-1 to 10-5). Finally, the adhesive tape T is wound around the ECU 10 (10-1 to 10-5) and the wire groups 31 to 35, and the ECU 10 is integrated with the wire harness 30 and fixed.
In addition, in FIG. 9, illustration of the adhesive tape T wound around small block ECU10-1 to 10-5 is abbreviate | omitted.

このように、ＥＣＵ１０の面積が大きい場合や、一つのＦＰＣ基板上に小幅の小ブロックＥＣＵ１０−１〜１０−５を並設して夫々コネクタ１６−１〜１６−５を取り付ける必要がある場合でも、ＥＣＵ１０を設けるＦＰＣ基板２２の幅Ｗ３がワイヤハーネス３０の外周よりも小さい場合は、ワイヤハーネス３０の外周に無理なく沿わせて巻きつけ固定することができ、作業性も向上する。   As described above, even when the area of the ECU 10 is large, or when it is necessary to mount the small blocks ECUs 10-1 to 10-5 having a small width on the same FPC board and attach the connectors 16-1 to 16-5, respectively. When the width W3 of the FPC board 22 on which the ECU 10 is provided is smaller than the outer periphery of the wire harness 30, the FPC board 22 can be wound and fixed along the outer periphery of the wire harness 30 without difficulty and workability is also improved.

図９は本発明の第四実施形態を示し、異なる通信プロトコル間の信号を変換するゲートウエイＥＣＵに本発明を適用したもので、該ゲートウエイＥＣＵ１０’を複数のＥＣＵ１０Ａ〜１０Ｄに分割し、ワイヤハーネス４０の外周面に長さ方向に間隔をあけて取り付けている。   FIG. 9 shows a fourth embodiment of the present invention, in which the present invention is applied to a gateway ECU that converts signals between different communication protocols. The gateway ECU 10 ′ is divided into a plurality of ECUs 10A to 10D, and a wire harness 40 is obtained. It is attached to the outer peripheral surface of the at an interval in the length direction.

詳しくは、前記ゲートウエイＥＣＵ１０’は、ワイヤハーネス幹線４０の全周に巻きつけられないほどの面積を必要とし、これを４つの小ブロックＥＣＵ１０Ａ〜１０Ｄ、即ち、電源回路用ＥＣＵ１０Ａ、信号レベル変換回路１用ＥＣＵ１０Ｂ、プロトコル変換回路用ＥＣＵ１０Ｃ、信号レベル変換回路２用ＥＣＵ１０Ｄに分割している。   Specifically, the gateway ECU 10 ′ requires an area that cannot be wound around the entire circumference of the wire harness main line 40, and is divided into four small block ECUs 10A to 10D, that is, the power circuit ECU 10A and the signal level conversion circuit 1. ECU 10B for protocol conversion, ECU 10C for protocol conversion circuit, and ECU 10D for signal level conversion circuit 2.

前記電源回路用ＥＣＵ１０Ａには、電源入力電線４１が接続されるとともに、信号レベル変換回路１用ＥＣＵ１０Ｂ、プロトコル変換回路用ＥＣＵ１０Ｃ、信号レベル変換回路２用ＥＣＵ１０Ｄそれぞれへの電源出力電線４２、４３、４４も接続されている。また、信号レベル変換回路１用ＥＣＵ１０Ｂには、プロトコル変換回路１０Ｃと接続する電線４５と、他の回路基板と接続する電線１６が接続され、信号レベル変換回路２用ＥＣＵ１０Ｄには、プロトコル変換回路１０Ｃと接続する電線４７と、他の回路基板と接続する電線４８が接続されている。   A power input wire 41 is connected to the power circuit ECU 10A, and power output wires 42, 43, 44 to the signal level conversion circuit 1 ECU 10B, the protocol conversion circuit ECU 10C, and the signal level conversion circuit 2 ECU 10D, respectively. Is also connected. The signal level conversion circuit 1 ECU 10B is connected to an electric wire 45 connected to the protocol conversion circuit 10C and an electric wire 16 connected to another circuit board. The signal level conversion circuit 2 ECU 10D is connected to the protocol conversion circuit 10C. And an electric wire 48 connected to another circuit board.

これら各小ブロックＥＣＵ１０Ａ〜１０Ｄには、それぞれ長さ方向の両端にコネクタ１６が実装され、各小ブロックＥＣＵ１０Ａ〜１０Ｄをワイヤハーネス４０の外周面上に長さ方向に間隔をあけて配置し、前記各電線４１〜４８の端末に接続されたコネクタ１９を前記ＥＣＵ側コネクタ１６に嵌合して、各小ブロックＥＣＵ１０Ａ〜１０Ｄを電線４１〜４８を介して互いに接続している。   Each of the small block ECUs 10A to 10D is provided with connectors 16 at both ends in the length direction, and the small blocks ECUs 10A to 10D are arranged on the outer peripheral surface of the wire harness 40 at intervals in the length direction. A connector 19 connected to the terminal of each electric wire 41 to 48 is fitted to the ECU side connector 16, and the small block ECUs 10 </ b> A to 10 </ b> D are connected to each other via the electric wires 41 to 48.

各小ブロックＥＣＵ１０Ａ〜１０Ｄにカバー２１Ａ〜２１Ｄが取り付けられていることと、該ＥＣＵ１０Ａ〜１０Ｄと電線４１〜４８の上から粘着テープが巻きつけられてワイヤハーネス４０の外周面に各ＥＣＵ１０Ａ〜１０Ｄが固定される構造については、前記各実施形態と同じである。   Covers 21A to 21D are attached to the small block ECUs 10A to 10D, and adhesive tapes are wound around the ECUs 10A to 10D and the electric wires 41 to 48 so that the ECUs 10A to 10D are arranged on the outer peripheral surface of the wire harness 40. The structure to be fixed is the same as in each of the above embodiments.

本実施形態のように、ゲートウエイＥＣＵ１０’の面積が大きすぎて、ワイヤハーネス４０の外周に１周で巻きつけられない場合でも、該ＥＣＵ１０’を、小幅の小ブロックＥＣＵ１０Ａ〜１０Ｄに分割し、それをワイヤハーネス４０の長さ方向に間隔をあけて並置すると共に、各小ブロックＥＣＵ１０Ａ〜１０Ｄを、ワイヤハーネス４０を構成する電線４１〜４８を介して接続することにより、ワイヤハーネス４０の外周にゲートウエイＥＣＵ１０’を密着させて巻きつけ固定できる。   Even when the area of the gateway ECU 10 ′ is too large to be wound around the outer periphery of the wire harness 40 as in the present embodiment, the ECU 10 ′ is divided into small small block ECUs 10A to 10D. Are juxtaposed at intervals in the length direction of the wire harness 40, and the small blocks ECUs 10A to 10D are connected via the electric wires 41 to 48 constituting the wire harness 40, whereby the gateway is connected to the outer periphery of the wire harness 40. The ECU 10 ′ can be tightly wound and fixed.

なお、本発明は前記実施形態に限定されるものではない。特に、電線群の端末とＥＣＵの回路体との接続は、コネクタを介した接続に限らず、半田付け、抵抗溶接あるいは超音波溶接により直接的に固着してもよい。また、ワイヤハーネス幹線にＥＣＵや支線を巻きつけ固定するものとして、粘着テープに替えて結束バンドを用いても良い。   In addition, this invention is not limited to the said embodiment. In particular, the connection between the terminal of the electric wire group and the circuit body of the ECU is not limited to the connection via the connector, and may be directly fixed by soldering, resistance welding, or ultrasonic welding. In addition, a binding band may be used in place of the adhesive tape as a means for winding and fixing an ECU or a branch line around the wire harness main line.

本発明の第一実施形態に係るワイヤハーネスへの電子制御ユニット（ＥＣＵ）の取付構造を示す透視斜視図である。It is a see-through | perspective perspective view which shows the attachment structure of the electronic control unit (ECU) to the wire harness which concerns on 1st embodiment of this invention. ＥＣＵの構成を示す説明図である。It is explanatory drawing which shows the structure of ECU. ＥＣＵと電線群との接続構造を示す説明図であり、（Ａ）は平面図であり、（Ｂ）は側面図である。It is explanatory drawing which shows the connection structure of ECU and an electric wire group, (A) is a top view, (B) is a side view. 図１のIV−IV線断面図である。It is the IV-IV sectional view taken on the line of FIG. 本発明の第２実施形態を示す概略斜視図（粘着テープ部分省略）である。It is a schematic perspective view (adhesive tape part omission) which shows 2nd Embodiment of this invention. 図５に示すＥＣＵと電線群との接続構造を示す平面図である。It is a top view which shows the connection structure of ECU shown in FIG. 5, and an electric wire group. 本発明の第３実施形態を示し、（Ａ）が概略斜視図（粘着テープ省略）であり、（Ｂ）がＢ−Ｂ線断面図である。3rd Embodiment of this invention is shown, (A) is a schematic perspective view (adhesive tape abbreviation), (B) is a BB sectional drawing. 図７に示すＥＣＵの分割構造を示す平面図である。It is a top view which shows the division | segmentation structure of ECU shown in FIG. 本発明の第４実施形態とそのシステムを示す説明図（粘着テープ省略）である。It is explanatory drawing (adhesive tape abbreviation) which shows 4th Embodiment and its system of this invention. 従来例の図である。It is a figure of a prior art example. 従来例の問題点を示す説明図である。It is explanatory drawing which shows the problem of a prior art example.

符号の説明Explanation of symbols

１０ ＥＣＵ
１０−１〜１０−５ 小ブロックＥＣＵ
１０’ゲートウェイＥＣＵ
１１ 基板
１３ 回路体
１４、１５ 絶縁樹脂シート
１６、１６−１〜１６−５ （ＥＣＵ側）コネクタ
１９、１９−１〜１９−５ （電線側）コネクタ
２１ カバー
３０、４０ ワイヤハーネス（幹線）
３１〜３５ 電線群 10 ECU
10-1 to 10-5 Small block ECU
10 'gateway ECU
DESCRIPTION OF SYMBOLS 11 Board | substrate 13 Circuit body 14, 15 Insulation resin sheet 16, 16-1 to 16-5 (ECU side) Connector 19, 19-1 to 19-5 (Electric wire side) Connector 21 Cover 30, 40 Wire harness (main line)
31-35 Wire group

Claims (5)

車両に搭載される電子制御ユニット（ＥＣＵ）の基板を、所要回路形状に形成した導電箔を可撓性を有する絶縁樹脂シートで挟んだフレキシブル基板として構成し、
前記ＥＣＵの回路と接続する電線群を集束しているワイヤハーネスの外周面に、前記ＥＣＵをテープ巻きあるいは結束バンドで固定していることを特徴とするワイヤハーネスの電子制御ユニット取付構造。 A board of an electronic control unit (ECU) mounted on a vehicle is configured as a flexible board in which a conductive foil formed in a required circuit shape is sandwiched between insulating resin sheets having flexibility,
An electronic control unit mounting structure for a wire harness, characterized in that the ECU is fixed with a tape or a binding band on an outer peripheral surface of a wire harness that converges a group of electric wires connected to a circuit of the ECU. 前記ＥＣＵの導電箔からなる回路端末を前記ワイヤハーネスの電線端末から露出した芯線と半田付け、抵抗溶接あるいは超音波溶接で固着し、
あるいは、前記ＥＣＵの回路端末に実装したコネクタを介して前記ワイヤハーネスの電線を接続している請求項１に記載のワイヤハーネスへの電子制御ユニット取付構造。 Solder the core terminal exposed from the electric wire terminal of the wire harness, and fix it by resistance welding or ultrasonic welding.
Or the electric control unit attachment structure to the wire harness of Claim 1 which has connected the electric wire of the said wire harness through the connector mounted in the circuit terminal of the said ECU. 前記ＥＣＵの回路には電子部品を実装し、かつ、前記基板と該基板上の電子部品を囲む可撓性を有するカバーを設けている請求項１または請求項２に記載のワイヤハーネスへの電子制御ユニット取付構造。   The electronic to the wire harness according to claim 1 or 2, wherein an electronic component is mounted on the circuit of the ECU, and a flexible cover surrounding the substrate and the electronic component on the substrate is provided. Control unit mounting structure. 前記ＥＣＵの導電箔からなる回路の一端あるいは両端末に前記ワイヤハーネスの電線を接続している請求項１乃至請求項３のいずれか1項に記載のワイヤハーネスへの電子制御ユニット取付構造。   The electronic control unit mounting structure to a wire harness according to any one of claims 1 to 3, wherein an electric wire of the wire harness is connected to one end or both ends of a circuit made of conductive foil of the ECU. １つのＥＣＵの幅が、取り付けるワイヤハーネスの外周よりも大きい場合は、該ＥＣＵを複数個数に分割し、ワイヤハーネスの長さ方向に間隔をあけて取り付け、分割されたＥＣＵの回路はワイヤハーネスの電線を介して接続している請求項１乃至請求項４のいずれか1項に記載のワイヤハーネスへの電子制御ユニット取付構造。   When the width of one ECU is larger than the outer circumference of the wire harness to be attached, the ECU is divided into a plurality of pieces and attached at intervals in the length direction of the wire harness. The electronic control unit mounting structure to a wire harness according to any one of claims 1 to 4, wherein the electronic control unit is connected via an electric wire.
JP2005120632A 2005-04-19 2005-04-19 Structure for mounting electronic control unit on wire harness Withdrawn JP2006298084A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011159497A (en) * 2010-02-01 2011-08-18 Autonetworks Technologies Ltd Electronic control unit mounting structure to wire harness
WO2014206294A1 (en) * 2013-06-28 2014-12-31 奇点新源国际技术开发(北京)有限公司 Hybrid transmission cable
WO2018105391A1 (en) * 2016-12-05 2018-06-14 オリンパス株式会社 Electronic circuit unit, image capturing unit, and method of connecting endoscope and electronic circuit unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011159497A (en) * 2010-02-01 2011-08-18 Autonetworks Technologies Ltd Electronic control unit mounting structure to wire harness
WO2014206294A1 (en) * 2013-06-28 2014-12-31 奇点新源国际技术开发(北京)有限公司 Hybrid transmission cable
WO2018105391A1 (en) * 2016-12-05 2018-06-14 オリンパス株式会社 Electronic circuit unit, image capturing unit, and method of connecting endoscope and electronic circuit unit
US10653306B2 (en) 2016-12-05 2020-05-19 Olympus Corporation Electronic circuit unit, imaging unit, and endoscope

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