JPH08340635A - Power distributor for wire harness of automobile - Google Patents
Power distributor for wire harness of automobileInfo
- Publication number
- JPH08340635A JPH08340635A JP7146151A JP14615195A JPH08340635A JP H08340635 A JPH08340635 A JP H08340635A JP 7146151 A JP7146151 A JP 7146151A JP 14615195 A JP14615195 A JP 14615195A JP H08340635 A JPH08340635 A JP H08340635A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- potential difference
- fuse
- load side
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Direct Current Feeding And Distribution (AREA)
- Fuses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車用ワイヤハーネ
スの電源分配装置に関し、特に、電源回路に介設するヒ
ューズが溶断する前に、断続的なショートや素線切れ等
から電線に溶断が生ずるのを減少するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power distribution device for a wire harness for an automobile, and more particularly, to an electric wire that is blown by an intermittent short circuit or a broken wire before a fuse provided in a power circuit is blown. It reduces the occurrence.
【０００２】[0002]
【従来の技術】従来、自動車用ワイヤハーネスにおい
て、電源（バッテリー）から負荷側電装品へ電源を供給
する電源システムは、図５および図６に示す構成となっ
ている。図６の第１従来例では、電源Ｂから負荷側電装
品（例えば、ラジオ等）Iに作動電源を駆動電源回路２
を通して供給すると共に、作動を制御する信号を信号電
源回路１を通して負荷側電装品Iに供給しており、信号
電源回路１にはイグニッション・スイッチＳを介設し
て、イグニッション・スイッチＳがオンした時に上記制
御信号を負荷側電装品Iに送るようにしている。上記駆
動電源回路２と信号電源回路１とは電源Ｂに接続した共
通電源回路３の下流側で分岐しており、かつ、これら駆
動電源回路２および信号電源回路１のいずれにもヒュー
ズＨ１、Ｈ２を介設している。2. Description of the Related Art Conventionally, in a wire harness for an automobile, a power supply system for supplying power from a power supply (battery) to a load side electrical component has a configuration shown in FIGS. In the first conventional example of FIG. 6, a driving power supply circuit 2 is provided with an operating power supply from a power supply B to a load side electrical component (for example, a radio) I.
And the signal for controlling the operation is supplied to the load side electrical component I through the signal power supply circuit 1. The signal power supply circuit 1 is provided with the ignition switch S, and the ignition switch S is turned on. At times, the control signal is sent to the load side electrical component I. The drive power supply circuit 2 and the signal power supply circuit 1 are branched on the downstream side of the common power supply circuit 3 connected to the power supply B, and the fuses H1 and H2 are provided in both the drive power supply circuit 2 and the signal power supply circuit 1. Is installed.
【０００３】図６に示す第２従来例では、電源Ｂと接続
した共通電源回路３Ａの下流で分岐した共通電源回路３
Ｂにイグニッション・スイッチＳとヒューズＨを介設
し、ヒューズＨの下流側で負荷側電装品I〜IVに対応し
て分岐接続されている。しかし、負荷側電装品I、IIで
は、これを信号電源として使用し、負荷側電装品III、I
Vでは駆動電源として使用している。即ち、ヒューズＨ
の下流に駆動系電源回路と信号系電源回路を区別なく接
続している。In the second conventional example shown in FIG. 6, the common power supply circuit 3 branched downstream from the common power supply circuit 3A connected to the power supply B.
An ignition switch S and a fuse H are provided in B, and a branch connection is made on the downstream side of the fuse H corresponding to the load side electrical components I to IV. However, in the load side electrical components I and II, this is used as the signal power source, and the load side electrical components III and I
It is used as a drive power source in V. That is, fuse H
The drive system power supply circuit and the signal system power supply circuit are connected downstream without distinction.
【０００４】上記第１および第２従来例において、夫々
電源回路に介設しているヒューズは、上記電源回路中で
ショートが発生した時、過電流が流れることにより発熱
して溶断し、よって、電線を保護している。In the above-mentioned first and second conventional examples, the fuses respectively provided in the power supply circuit are heated and blown by the flow of an overcurrent when a short circuit occurs in the power supply circuit. It protects the wires.
【０００５】[0005]
【発明が解決しようとする課題】上記電源回路に介設す
るヒューズが溶断するには、ヒューズのエレメントが１
０００℃近くまで発熱することが必要であるが、電線が
車体のボデーに断続的に接触して発生する断続的なショ
ート時（所謂レアショート）、あるいは電線の多数の素
線の内の１本あるいは２本がショートした時、また、逆
に多数の素線が断線して１本あるいは２本でしか接続さ
れていない時等、ヒューズのエレメントが８００℃程度
までしか発熱しない場合、ヒューズが溶断する前に、電
線に溶断が発生する問題がある。In order to fuse the fuse provided in the power supply circuit, the fuse element must be 1
It is necessary to generate heat up to near 000 ° C, but at the time of intermittent short circuit (so-called rare short circuit) that occurs when the wire intermittently contacts the body of the vehicle body (so-called rare short), or one of many wires of the wire. If the fuse element heats up to about 800 ° C, such as when two fuses are short-circuited, or conversely, many wires are disconnected and only one or two conductors are connected, the fuse blows. Before doing so, there is a problem that the electric wire will melt down.
【０００６】ヒューズを介設して回路を保護するように
した電源システムで発生する上記問題は、ヒューズ保護
回路が多い程、多く発生することとなる。The above-mentioned problems that occur in a power supply system in which a fuse is provided to protect a circuit are more likely to occur as the number of fuse protection circuits increases.
【０００７】前記従来例１では、駆動系電源回路および
信号系電源回路の夫々にヒューズを介設しているため、
ヒューズ保護回路が非常に多く、よって、上記電線溶断
の問題が発生しやすい。また、第２従来例のように駆動
系電源回路と信号系電源回路の両方を区別なくヒューズ
の下流で分岐すると、本来、小電流しか流れない信号系
電源回路まで、その電線の溶断が発生しやすくなる問題
がある。In the above-mentioned conventional example 1, since the fuses are provided in each of the drive system power supply circuit and the signal system power supply circuit,
There are so many fuse protection circuits that the above-mentioned problem of electric wire blowout easily occurs. When both the drive system power supply circuit and the signal system power supply circuit are branched without distinction as in the second conventional example, the electric wire is blown even to the signal system power supply circuit, which originally flows only a small current. There is a problem that makes it easier.
【０００８】本発明は上記した問題に鑑みてなされたも
ので、ヒューズを介設した電源回路において、ヒューズ
溶断前に電線が溶断する確率を出来るだけ減少すること
を目的としている。The present invention has been made in view of the above problems, and it is an object of the present invention to reduce the probability that an electric wire is blown before a fuse is blown in a power supply circuit having a fuse.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、請求項１で、電源より負荷側電装品へ電
源を供給する電源回路において、電源に接続した共通電
源回路を、電装品動作用の駆動系電源回路と、電装品へ
信号を送る信号系電源回路とに分岐し、上記駆動系電源
回路はヒューズを介して負荷側電装品と接続する一方、
上記信号系電源回路は、電源側から直列接続した抵抗と
スイッチを介して負荷側電装品と接続し、上記スイッチ
を、上記抵抗の両端に接続した電位差判定回路に接続
し、抵抗両端の電位差が設定値を越えることを電位差判
定回路が検知するとスイッチを動作して負荷側電装品へ
の電源供給を停止する構成としている自動車用ワイヤハ
ーネスの電源分配装置を提供している。To achieve the above object, according to the present invention, in a power supply circuit for supplying power from a power supply to a load side electrical component, a common power supply circuit connected to the power source is provided as an electrical component. The drive system power supply circuit for product operation and the signal system power supply circuit that sends a signal to the electrical component are branched, and the drive system power supply circuit is connected to the load side electrical component through a fuse,
The signal system power supply circuit is connected to a load side electrical component through a resistor and a switch that are connected in series from the power supply side, and the switch is connected to a potential difference determination circuit connected to both ends of the resistor so that the potential difference across the resistor is (EN) Provided is a power distribution device for a wire harness for an automobile, which is configured to operate a switch to stop power supply to a load side electrical component when a potential difference determination circuit detects that a set value is exceeded.
【００１０】上記スイッチとしてトランジスタあるいは
リレーを用いている。（請求項２）例えば、トランジス
タを用いた場合、トランジスタのベースを電位差判定回
路に接続する一方、コレクタを抵抗側に、エミッタを負
荷側電装品側に夫々接続し、電位差判定回路により抵抗
両端の電位差が設定値を越えると、トランジスタのベー
スへの通電を遮断して、トランジスタをオフ状態として
いる。A transistor or a relay is used as the switch. (Claim 2) For example, when a transistor is used, the base of the transistor is connected to the potential difference determination circuit, the collector is connected to the resistor side, and the emitter is connected to the load side electrical component side, and the potential difference determination circuit is used to connect both ends of the resistor. When the potential difference exceeds the set value, the power supply to the base of the transistor is cut off and the transistor is turned off.
【００１１】上記電位差判定回路は、スイッチと負荷側
電装品とを接続する電線がボデーとショートして大きな
短絡電流が流れて上記抵抗両端の電位差が設定値を越え
た時に、上記スイッチを開いて、負荷側電装品への電源
供給を停止する構成としている。（請求項３）The potential difference judging circuit opens the switch when the electric wire connecting the switch and the load side electric component is short-circuited with the body and a large short-circuit current flows and the potential difference across the resistance exceeds the set value. The power supply to the load side electrical components is stopped. (Claim 3)
【００１２】[0012]
【作用】上記構成の本発明の電源分配装置では、信号系
電源回路はヒューズを介さずに電源と負荷側電装品とを
接続しているため、ヒューズ保護回路で発生しやすいヒ
ューズ溶断前に電線が溶断する減少を完全に無くすこと
ができる。また、信号系電源回路では、ヒューズにかえ
て抵抗を介設すると共に、該抵抗の下流にトランジスタ
あるいはリレーからなるスイッチを介設しているため、
スイッチ下流側の電線がボデーとショートした場合、ま
ず、電源より抵抗を介して流れる電流は制限されるた
め、電線の発熱量は少なく、電線に溶断が発生する恐れ
はなくない。さらに、該ショート発生時には、抵抗に大
きな短絡電流が流れて、抵抗の出力側の電圧は上昇し、
入力側との電位差が大きくなる。この電位差が電位差判
定回路に予め入力している設定値を越えると、該電位差
判定回路によりスイッチを動作して、通電を遮断するた
め、電線が溶断することを確実に防止できる。In the power distribution device of the present invention having the above-described structure, since the signal system power circuit connects the power source and the load side electrical component without passing through the fuse, the electric wire before the fuse is blown is likely to occur in the fuse protection circuit. Can be completely eliminated. Further, in the signal system power supply circuit, a resistor is provided instead of the fuse, and a switch composed of a transistor or a relay is provided downstream of the resistor,
When the electric wire on the downstream side of the switch is short-circuited with the body, first, the electric current flowing through the resistance from the power source is limited, so the amount of heat generated by the electric wire is small, and there is no risk of fusing of the electric wire. Furthermore, when the short circuit occurs, a large short circuit current flows through the resistor, and the voltage on the output side of the resistor rises,
The potential difference from the input side becomes large. When this potential difference exceeds a preset value that has been input to the potential difference determination circuit in advance, the switch is operated by the potential difference determination circuit to cut off energization, so that it is possible to reliably prevent the electric wire from melting.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面を参照して説明
する。図１、図２は、スイッチとしてトランジスタを用
いた第１実施例を示し、電源Ｂの＋側と接続した共通電
源回路１０にイグニッションスイッチＳを介設し、該イ
グニッションスイッチＳの下流において、電源分配ユニ
ット１１内で、駆動系電源回路１２と信号系電源回路１
３とに分岐している。駆動系電源回路１２は、３つの分
岐駆動系電源回路１４に分岐し、これら各分岐駆動系電
源回路１４にヒューズ１５を介設し、それぞれ電線１６
を介して負荷側電装部品１７の駆動回路と接続してい
る。Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment in which a transistor is used as a switch, an ignition switch S is provided in a common power supply circuit 10 connected to the + side of a power supply B, and a power supply is provided downstream of the ignition switch S. In the distribution unit 11, the drive system power supply circuit 12 and the signal system power supply circuit 1
It branches to 3. The drive system power supply circuit 12 is branched into three branch drive system power supply circuits 14, each of which is provided with a fuse 15 and a wire 16
Is connected to the drive circuit of the load-side electrical component 17 via.
【００１４】信号系電源回路１３も、３つの分岐信号系
電源回路１８に分岐し、これら分岐信号系電源回路１８
に、抵抗１９とトランジスタ２０を直列に接続した後、
電線２１を介して負荷側電装品１７の信号回路と接続し
ている。上記トランジスタ２０はコレクタ２０ａを抵抗
１９側に接続し、エミッタ２０ｂを負荷側電装品１７側
の電線２１と接続している。The signal system power supply circuit 13 also branches into three branch signal system power supply circuits 18, and these branch signal system power supply circuits 18
After connecting the resistor 19 and the transistor 20 in series,
It is connected to the signal circuit of the load side electrical component 17 via the electric wire 21. In the transistor 20, the collector 20a is connected to the resistor 19 side, and the emitter 20b is connected to the electric wire 21 on the load side electrical component 17 side.
【００１５】上記抵抗１９の入力側と出力側との両端に
接続した電位差判定回路２２を設け、該電位差判定回路
２２の出力端を、上記トランジスタ２０のベース２０ｃ
に接続している。上記電位差判定回路２２では、抵抗１
９の両端の電位差を、予め入力している設定値と比較
し、設定値を越えることを検知すると、トランジスタ２
０のベース２０ｃへの通電を停止し、トランジスタ２０
をオフ状態とするようにしている。A potential difference determination circuit 22 connected to both ends of the input side and the output side of the resistor 19 is provided, and the output end of the potential difference determination circuit 22 is connected to the base 20c of the transistor 20.
Connected to In the above potential difference determination circuit 22, the resistance 1
The potential difference between the two ends of 9 is compared with the preset value input in advance, and when it is detected that the preset value is exceeded, the transistor 2
0 to the base 20c, and the transistor 20
Is turned off.
【００１６】上記電位差判定回路２２に予め入力してい
る設定値は、電線２１がボデーと接触してショートした
時に、抵抗１９の両端で発生する電位差より僅かに小さ
い値に設定している。The preset value input to the potential difference judgment circuit 22 is set to a value slightly smaller than the potential difference generated at both ends of the resistor 19 when the electric wire 21 comes into contact with the body and short-circuits.
【００１７】上記図１に示す構成の回路とすると、分岐
信号系電源回路１８では、電源Ｂと各負荷側電装品１７
とを接続するいずれの回路にもヒューズを介設していな
いため、ヒューズ保護回路に発生しやすいヒューズ溶断
前に電線２１が溶断する現象を低減できる。With the circuit having the configuration shown in FIG. 1, in the branch signal system power supply circuit 18, the power supply B and each load side electrical component 17 are provided.
Since no fuse is provided in any of the circuits that connect to and from, the phenomenon in which the electric wire 21 is blown before the fuse is blown, which is likely to occur in the fuse protection circuit, can be reduced.
【００１８】また、分岐信号系電源回路１８には、ヒュ
ーズの代わりに、抵抗１９と、電位差判定回路２２で制
御されるトランジスタ２０とを直列に介設して、通常時
にはトランジスタ２０はオン状態で電流を通すと共に、
負荷側電装品１７の信号回路に流れる電流は小電流で内
部抵抗値が大きいため、抵抗１９の抵抗値を電装品の内
部抵抗値よりも十分小さくでき、負荷側電装品１７に抵
抗１９を介設したことによる影響を与えない。Further, in the branch signal system power supply circuit 18, a resistor 19 and a transistor 20 controlled by a potential difference determination circuit 22 are provided in series instead of a fuse so that the transistor 20 is normally in an on state. While passing an electric current,
Since the current flowing through the signal circuit of the load-side electrical component 17 is a small current and has a large internal resistance value, the resistance value of the resistor 19 can be made sufficiently smaller than the internal resistance value of the electrical component, and the load-side electrical component 17 is connected to the resistor 19 through the resistor 19. It does not affect the setting.
【００１９】一方、図２に示すように、トランジスタ２
０と負荷側電装品１７とを接続する電線２１が自動車の
ボデーに接触してショートが発生した時、まず、電源よ
り抵抗１９を介して流れる電流は制限されるため、電線
２１の発熱量は少なく、電線２１は直ちに溶断する恐れ
はない。さらに、抵抗１９に大きな短絡電流が流れて、
抵抗１９の出力側の電圧は上昇し、入力側との電位差が
大きくなる。この電位差が電位差判定回路２２に予め入
力している設定値を越えると、該電位差判定回路２２か
らトランジスタ２０のベース２０ｃへの通電を遮断さ
れ、トランジスタ２０をオフ状態とする。よって、電線
２１への通電は遮断され、電線２１が溶断することを確
実に防止できる。On the other hand, as shown in FIG.
When the electric wire 21 connecting 0 and the load side electric component 17 contacts the body of the automobile to cause a short circuit, first, the electric current flowing from the power source through the resistor 19 is limited, so the amount of heat generated by the electric wire 21 is The number of wires 21 is small, and there is no fear that the electric wires 21 will be immediately blown. Furthermore, a large short circuit current flows through the resistor 19,
The voltage on the output side of the resistor 19 rises and the potential difference from the input side increases. When this potential difference exceeds a preset value input to the potential difference determination circuit 22, the potential difference determination circuit 22 cuts off the power supply to the base 20c of the transistor 20 and turns off the transistor 20. Therefore, the power supply to the electric wire 21 is cut off, and the electric wire 21 can be reliably prevented from melting.
【００２０】図３および図４は、上記トランジスタ２０
の代わりに、スイッチとして、リレー３０を用いた第２
実施例を示す。即ち、抵抗１９の下流にリレー３０を接
続し、該リレー３０は常閉で、電線２１を介して負荷側
電装品１７に電源を供給できるようにしている。リレ３
０は電位差判定回路２２と接続し、抵抗１９の入力側と
出力側の電位差が設定値を越えるとリレーを開き、負荷
側電装品１７への通電を遮断するようにしている。3 and 4 show the transistor 20 described above.
Instead of the second, using a relay 30 as a switch
An example will be described. That is, the relay 30 is connected downstream of the resistor 19, and the relay 30 is normally closed so that power can be supplied to the load side electrical component 17 via the electric wire 21. Lille 3
0 is connected to the potential difference determination circuit 22, and when the potential difference between the input side and the output side of the resistor 19 exceeds the set value, the relay is opened and the energization to the load side electrical component 17 is cut off.
【００２１】よって、図４に示すように、リレー３０と
負荷側電装品１７の間の電線２１が自動車のボデーに接
触してショートが発生した時、リレー３０が開き、電線
２１への通電は遮断されて電線２１が溶断するのを防止
できる。Therefore, as shown in FIG. 4, when the electric wire 21 between the relay 30 and the load side electric component 17 comes into contact with the body of the automobile to cause a short circuit, the relay 30 is opened and the electric wire 21 is not energized. It is possible to prevent the electric wire 21 from being cut off and melted.
【００２２】[0022]
【発明の効果】以上の説明より明らかなように、本発明
に係わる電源分配装置によれば、駆動系電源回路と信号
系電源回路とを区別し、信号系電源回路にはヒューズを
介設せず、ヒューズ保護回路としていないため、ヒュー
ズ保護回路で発生していたヒューズ溶断前に電線が溶断
する問題を減少できる。特に、信号系電源回路は全電源
回路の約７割を締めているため、これら信号系電源回路
の電線の溶断発生率を減少できるメリットは大きい。As is apparent from the above description, according to the power distribution device of the present invention, the drive system power circuit and the signal system power circuit are distinguished from each other, and the signal system power circuit is provided with a fuse. Since the fuse protection circuit is not provided, the problem that the electric wire is blown before the fuse is blown can be reduced. In particular, about 70% of all the power supply circuits are tightened in the signal power supply circuit, so there is a great merit that the rate of occurrence of fusing of the electric wires of these signal power supply circuits can be reduced.
【００２３】さらに、ヒューズを介設した場合には、ヒ
ューズと接続する電線サイズは大きくなるが、信号系電
源回路ではヒューズを介設していないため、電線サイズ
を小さくでき、ワイヤハーネスの軽量化およびコストダ
ウンを図ることができる。さらに、メンテナンスも各信
号電源回路毎にフリーに行うことができる。Further, when the fuse is provided, the size of the electric wire connected to the fuse becomes large, but since the fuse is not provided in the signal system power supply circuit, the size of the electric wire can be made small and the weight of the wire harness can be reduced. And the cost can be reduced. Furthermore, maintenance can be freely performed for each signal power supply circuit.
【００２４】さらにまた、信号系電源回路では、ヒュー
ズの代わりに、抵抗と、電位差判定回路で制御されてい
るトランジスタ、リレー等からなるスイッチとを直列に
接続しているため、該信号系電源回路の電線にショート
が発生した場合、スイッチを動作して、電線への通電を
遮断して、電線の溶断を確実に防止できる。Furthermore, in the signal system power supply circuit, instead of the fuse, a resistor and a switch composed of a transistor, a relay, etc. controlled by the potential difference determination circuit are connected in series, so that the signal system power supply circuit is connected. When a short circuit occurs in the electric wire, the switch is operated to cut off the electric current to the electric wire, so that the electric wire can be surely prevented from being cut.
【図１】 本発明の電源分配装置の第１実施例を示す回
路図である。FIG. 1 is a circuit diagram showing a first embodiment of a power distribution device of the present invention.
【図２】 図１の装置において、車体ショート発生時の
説明図である。FIG. 2 is an explanatory diagram when a vehicle body short circuit occurs in the device of FIG.
【図３】 第２実施例を示す回路図である。FIG. 3 is a circuit diagram showing a second embodiment.
【図４】 第２実施例のおける車体ショート発生時の説
明図である。FIG. 4 is an explanatory diagram when a vehicle body short circuit occurs in the second embodiment.
【図５】 第１従来例の回路図である。FIG. 5 is a circuit diagram of a first conventional example.
【図６】 第２従来例の回路図である。FIG. 6 is a circuit diagram of a second conventional example.
１２、１４ 駆動系電源回路 １３、１８ 信号系電源回路 １５ ヒューズ １６、２１ 電線 １７ 負荷側電装品 １９ 抵抗 ２０ トランジスタ ３０ リレー ２２ 電位差判定回路 Ｂ バッテリ Ｓ イグニッション・スイッチ 12, 14 Drive system power circuit 13, 18 Signal system power circuit 15 Fuse 16, 21 Electric wire 17 Load side electrical equipment 19 Resistance 20 Transistor 30 Relay 22 Potential difference determination circuit B Battery S Ignition switch
Claims (3)
電源回路において、 電源に接続した共通電源回路を、電装品動作用の駆動系
電源回路と、電装品へ信号を送る信号系電源回路とに分
岐し、上記駆動系電源回路はヒューズを介して負荷側電
装品と接続する一方、上記信号系電源回路は、電源側か
ら直列接続した抵抗とスイッチを介して負荷側電装品と
接続し、 上記スイッチを、上記抵抗の両端に接続した電位差判定
回路に接続し、抵抗両端の電位差が設定値を越えること
を電位差判定回路が検知すると、上記スイッチを動作し
て負荷側電装品への電源供給を停止する構成としている
自動車用ワイヤハーネスの電源分配装置。1. A power supply circuit for supplying power from a power supply to a load side electrical component, wherein a common power supply circuit connected to the power source is a drive system power supply circuit for operating the electrical component and a signal system power supply circuit for sending a signal to the electrical component. The drive system power supply circuit is connected to the load side electrical equipment via a fuse, while the signal system power supply circuit is connected to the load side electrical equipment via a resistor and a switch connected in series from the power supply side. , The switch is connected to the potential difference determination circuit connected to both ends of the resistor, and when the potential difference determination circuit detects that the potential difference across the resistor exceeds the set value, the switch is operated to supply power to the load side electrical component. A power distribution device for an automobile wire harness that is configured to stop the supply.
はリレーを用いている請求項１に記載の自動車用ワイヤ
ハーネスの電源分配装置。2. The power distribution device for a vehicle wire harness according to claim 1, wherein a transistor or a relay is used as the switch.
側電装品とを接続する電線が車体とショートして短絡電
流が流れて上記抵抗両端の電位差が設定値を越えた時
に、上記スイッチを動作して負荷側電装品への電源供給
を停止する構成としている請求項１あるいは請求項２に
記載の自動車用ワイヤハーネスの電源分配装置。3. The potential difference determination circuit operates the switch when the electric wire connecting the switch and the load side electrical component is short-circuited with the vehicle body and a short-circuit current flows and the potential difference across the resistance exceeds a set value. The power supply distribution device for the automobile wire harness according to claim 1 or 2, wherein the power supply to the load side electrical component is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14615195A JP3191618B2 (en) | 1995-06-13 | 1995-06-13 | Power distribution device for automotive wiring harness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14615195A JP3191618B2 (en) | 1995-06-13 | 1995-06-13 | Power distribution device for automotive wiring harness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08340635A true JPH08340635A (en) | 1996-12-24 |
| JP3191618B2 JP3191618B2 (en) | 2001-07-23 |
Family
ID=15401295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14615195A Expired - Fee Related JP3191618B2 (en) | 1995-06-13 | 1995-06-13 | Power distribution device for automotive wiring harness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3191618B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4833837B2 (en) * | 2004-06-01 | 2011-12-07 | ローム株式会社 | Semiconductor device and electronic device |
| KR20140090649A (en) * | 2011-11-03 | 2014-07-17 | 아베엘 리스트 게엠베하 | Battery system |
| CN107015108A (en) * | 2015-12-09 | 2017-08-04 | Fev有限责任公司 | Method and device for carrying out Electricity Functional test in vehicle |
-
1995
- 1995-06-13 JP JP14615195A patent/JP3191618B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4833837B2 (en) * | 2004-06-01 | 2011-12-07 | ローム株式会社 | Semiconductor device and electronic device |
| KR20140090649A (en) * | 2011-11-03 | 2014-07-17 | 아베엘 리스트 게엠베하 | Battery system |
| CN107015108A (en) * | 2015-12-09 | 2017-08-04 | Fev有限责任公司 | Method and device for carrying out Electricity Functional test in vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3191618B2 (en) | 2001-07-23 |
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