JP3506094B2 - Connection structure between the internal circuit of the junction box and electric wires - Google Patents
Connection structure between the internal circuit of the junction box and electric wiresInfo
- Publication number
- JP3506094B2 JP3506094B2 JP2000054586A JP2000054586A JP3506094B2 JP 3506094 B2 JP3506094 B2 JP 3506094B2 JP 2000054586 A JP2000054586 A JP 2000054586A JP 2000054586 A JP2000054586 A JP 2000054586A JP 3506094 B2 JP3506094 B2 JP 3506094B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- electric wire
- junction box
- circuit body
- resin
- 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.)
- Expired - Fee Related
Links
Landscapes
- Connection Or Junction Boxes (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、自動車用ワイヤハ
ーネスに接続されるシャンクションボックスの内部回路
とワイヤハーネスを構成する外部回路用の電線との接続
構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting an internal circuit of a shunt box connected to a wire harness for an automobile and an electric wire for an external circuit constituting the wire harness.
【0002】[0002]
【従来の技術】近時、自動車に搭載される電装品の急増
に伴い、自動車用電気接続箱、特に、ジャンクションボ
ックスの内部に収容される回路が急増し、高密度で分岐
回路を形成するために、部品点数が非常に多くなり、組
み立て手数も非常にかかるようになっている。2. Description of the Related Art Recently, with the rapid increase in electrical components mounted on automobiles, the number of circuits contained in automobile electrical junction boxes, especially junction boxes, has increased rapidly to form branch circuits with high density. Moreover, the number of parts is extremely large, and the number of assembling steps is also very large.
【0003】自動車用電気接続箱のうち、図9に示すジ
ャンクションボックス1では、アッパーケース2とロア
ケース3の間に絶縁板4A〜4Eを介在させてバスバー
5A〜5Dを積層配置している。さらに、上下両端に電
線ガイド溝を設けた絶縁板15を配置して、該絶縁板1
5上に電線6A、6Bを布線して収容し、アッパーケー
ス2およびロアケース3に設けたコネクタ収容部、リレ
ー収容部、ヒューズ収容部に嵌合したリレー8、ヒュー
ズ、コネクタの端子を上記バスバーから突設したタブ7
と接続させると共に、上記電線6A、6Bを圧接端子
(図示せず)と圧接接続させ、該圧接端子をコネクタ、
リレー、ヒューズの端子と接続させている。In the junction box 1 shown in FIG. 9 of the automobile electrical junction box, bus bars 5A to 5D are laminated between the upper case 2 and the lower case 3 with insulating plates 4A to 4E interposed therebetween. Further, the insulating plate 15 provided with the wire guide grooves at both upper and lower ends is arranged, and the insulating plate 1
The wires 5A and 6B are wired and housed on the housing 5, and the connector housing, the relay housing, and the relay 8, which is fitted in the fuse housing, provided in the upper case 2 and the lower housing 3, the fuse, and the terminal of the connector are connected to the bus bar. Tab 7 protruding from
And connecting the electric wires 6A and 6B to a pressure contact terminal (not shown), and connecting the pressure contact terminal to a connector,
It is connected to the relay and fuse terminals.
【0004】[0004]
【発明が解決しようとする課題】上記のように、ジャン
クションボックスの内部回路は主としてバスバー方式で
あるが、電線と該電線に圧接端子を接続させた圧接方式
を併用する場合もある。バスバー方式の場合、外部回路
用電線との接続は、上記したように、バスバーから屈折
したタブに中継端子を取り付け、該中継端子をコネクタ
に挿入係止されている電線端末の端子と嵌合接続させて
いる。また、電線と圧接端子も場合も、圧接端子に設け
たタブをコネクタ内の端子と嵌合接続させている。この
ように、いずれも、ジャンクションボックスのケース外
面に設けたコネクタ収容部に収容するコネクタを介して
接続しており、電線側では、電線端末に端子を接続し、
該端子をコネクタに挿入係止する必要があり、部品点数
および組み立て工数が掛かる問題があり、バスバー等の
内部回路側でもタブ等の接続用端子を設ける必要があ
り、加工工数が多くなる問題がある。As described above, the internal circuit of the junction box is mainly of the bus bar type, but there are also cases where both the electric wire and the pressure welding method in which the pressure welding terminal is connected to the electric wire are used together. In the case of the bus bar method, the connection with the electric wire for the external circuit is performed by fitting the relay terminal to the tab bent from the bus bar and inserting the relay terminal into the connector to engage the terminal of the electric wire terminal as described above. I am letting you. Also, in the case of an electric wire and a pressure contact terminal, the tab provided on the pressure contact terminal is fitted and connected to the terminal in the connector. In this way, both are connected via the connector accommodated in the connector accommodating portion provided on the outer surface of the case of the junction box, and on the electric wire side, the terminal is connected to the electric wire end,
Since it is necessary to insert and lock the terminal into the connector, there is a problem that the number of parts and the number of assembling steps are increased, and it is necessary to provide a connecting terminal such as a tab even on the internal circuit side such as a bus bar, which causes a problem of increasing the number of processing steps. is there.
【0005】また、通常、コネクタ収容部はジャンクシ
ョンボックスの上下両面に設けられているため、積層配
置するバスバーあるいは/および電線からコネクタまで
の間の回路を迂回させる必要があり、回路設計が非常に
複雑になる等も問題もある。そのため、ジャンクション
ボックスへの取り込み回路が多くなると、1層当たりの
配索回路が少なくなり、その結果、層数が多くなって、
ジャンクションボックスが大型化、複雑化する問題があ
る。また、多数のバスバーを必要とすると共に、回路変
更に応じて金型から形成しなければならず、非常にコス
ト高になっている。また、バスバーの間には必ず絶縁板
を介在させなければならず、部品点数および組みつけ工
数が増加する問題がある。Further, since the connector accommodating portions are usually provided on both upper and lower surfaces of the junction box, it is necessary to bypass the circuit between the bus bar or / and the electric wire and the connector, which are arranged in layers, and the circuit design is very difficult. There are also problems such as complexity. Therefore, if the number of circuits that take in the junction box increases, the number of wiring circuits per layer decreases, and as a result, the number of layers increases,
There is a problem that the junction box becomes large and complicated. In addition, a large number of bus bars are required, and it is necessary to form them from a mold according to circuit changes, which is very expensive. In addition, an insulating plate must be interposed between the bus bars, which increases the number of parts and the number of assembly steps.
【0006】本発明は上記問題に鑑みてなされたもの
で、ジャンクションボックスに収容する内部回路と外部
回路用電線とを、内部回路側に端子を設けることなく、
かつ、中継端子を必要とせず、しかも、コネクタレスで
直接的に接続出来るようにすることを課題としている。The present invention has been made in view of the above problems, and the internal circuit housed in the junction box and the external circuit electric wire are provided without providing terminals on the internal circuit side.
Moreover, it is an object to make it possible to directly connect without a relay terminal and without a connector.
【0007】[0007]
【課題を解決するための手段】上記課題を解決するた
め、本発明は、ジャンクションボックス内に収容する回
路体を備え、上記回路体は、金型による1回目の絶縁性
樹脂の射出成形(1色目)で基板部が成形され、この基
板部を別の金型内に移して、熱可塑性樹脂中に金属繊維
あるいは低融点合金を分散させてネットワーク状に接合
させている高導電性樹脂を射出成形(2色目)し、この
2工程で、絶縁性樹脂からなる基板部に高導電性樹脂か
らなる導電部の表面が露出した状態で埋設されて一体的
に成形され、該導電部は所要の回路に形成されており、
ジャンクションボックスの外面に設けた開口より外部回
路を構成する電線を挿入し、該電線端末から露出させた
芯線を、上記回路体の回路上に載置して、高導電性接着
剤で固着して電気接続していることを特徴とするジャン
クションボックスの内部回路と電線との接続構造を提供
している。In order to solve the above problems, the present invention comprises a circuit body housed in a junction box, wherein the circuit body is a first injection molding (1) of an insulating resin by a mold. The substrate part is molded with different colors, and this substrate part is moved into another mold and metal fiber or low melting point alloy is dispersed in the thermoplastic resin to inject a highly conductive resin that is joined in a network form. Molding (second color), and in these two steps, the conductive part made of a highly conductive resin is embedded in a substrate part made of an insulative resin in an exposed state to be integrally molded. Is formed in the circuit,
An electric wire that constitutes an external circuit is inserted through an opening provided on the outer surface of the junction box, and the core wire exposed from the electric wire end is placed on the circuit of the circuit body and fixed with a highly conductive adhesive. It provides a connection structure between an internal circuit of a junction box and an electric wire, which is electrically connected.
【0008】即ち、ジャンクションボックスに収容する
内部回路体として、今まで用いられているバスバー、電
線と圧接端子、あるいはFPCとは異なる新規な回路体
を用いている。該回路体は、上記のように、絶縁性樹脂
からなる回路基板部に、高導電性樹脂からなる導電部の
表面が露出した状態で埋設されて一体的に成形されてお
り、上記導電部は所要の回路形状に成形されている。こ
のように、回路パターンを形成する導電部を高導電性樹
脂を射出成形して形成すると、導電部を効率よく配置で
き、高密度に分岐回路を設けるできると共に、電線の芯
線を高導電性接着剤を用いて直接的に接続することがで
きる。この高導電性接着剤としては、銀粉、錫合金粉等
を導電性フィラーをマトリクス樹脂中に分散させた構成
からなるもの、例えば、ニホンハンダ社製の商品名「ド
ーデント」等が好適に用いられる。That is, as the internal circuit body housed in the junction box, a new circuit body different from the bus bar, the electric wire and the pressure contact terminal, or the FPC used so far is used. As described above, the circuit body is embedded and integrally molded in a circuit board portion made of an insulating resin with the surface of the conductive portion made of a highly conductive resin exposed. It is molded into the required circuit shape. In this way, when the conductive parts forming the circuit pattern are formed by injection-molding a highly conductive resin, the conductive parts can be efficiently arranged, branch circuits can be provided at high density, and the core wire of the wire is highly conductively bonded. It can be directly connected using an agent. As the highly conductive adhesive, one having a structure in which a conductive filler is dispersed in a matrix resin, such as silver powder, tin alloy powder, or the like, for example, trade name "Dodent" manufactured by Nihon Handa Co., Ltd. is preferably used.
【0009】特に、回路体の回路のうち、電線と接続す
る回路の端末を、回路体の一辺側に集中して並設してお
く一方、電線を平行配線して対応する回路と当接させ、
接着剤による接着位置を並列状態で集中させておくと、
接着剤による接着工程を一度に行うことができ、作業性
を向上させることができる。In particular, among the circuits of the circuit body, the terminals of the circuits to be connected to the electric wires are concentrated and arranged side by side on one side of the circuit body, while the wires are wired in parallel and brought into contact with the corresponding circuits. ,
If the adhesion positions by the adhesive are concentrated in parallel,
The bonding process using the adhesive can be performed at one time, and the workability can be improved.
【0010】具体的には、上記電線挿入用の開口をジャ
ンクションボックスのアッパーケースとロアケースとが
接合する側面に設け、上記開口よりワイヤハーネスを構
成する電線端末を挿入し、これら電線端末から露出させ
た芯線を、上記回路体の所要の回路の上面(あるいは下
面)に当接させて、高導電性接着剤で固着することが好
ましい。Specifically, the opening for inserting the electric wire is provided on the side surface where the upper case and the lower case of the junction box are joined, and the electric wire terminals constituting the wire harness are inserted through the opening and exposed from these electric wire terminals. It is preferable that the core wire is brought into contact with the upper surface (or lower surface) of a desired circuit of the circuit body and fixed with a highly conductive adhesive.
【0011】上記のように回路体の回路とワイヤハーネ
スの電線とを接続すると、回路側にタブ等の端子を設け
ることなく、かつ、中継端子も必要とせず、コネクタレ
スで、直接的にワイヤハーネスの電線と接続することが
できる。また、ジャンクションボックスの側面にワイヤ
ハーネスとの接続部を設けると、ジャンクションボック
スとの上下面での接続以外に接続箇所を増加することが
でき、ジャンクションボックスの効率的な利用を図るこ
とができる。When the circuit of the circuit body and the electric wire of the wire harness are connected as described above, a terminal such as a tab is not provided on the circuit side, a relay terminal is not required, and the wire is directly connected without a connector. Can be connected to the wire of the harness. Further, by providing the connection portion with the wire harness on the side surface of the junction box, it is possible to increase the number of connection points in addition to the connection with the upper and lower surfaces of the junction box, so that the junction box can be efficiently used.
【0012】また、上記電線挿入用の開口は側面に限ら
ず、ジャンクションボックスのアッパーケースの上面あ
るいは/およびロアケースの下面に設け、電線を垂直方
向からケース内部に挿入し、回路体の回路と接触させる
部分で屈折させて接着剤で接続してもよい。Further, the opening for inserting the electric wire is not limited to the side surface, and is provided on the upper surface of the upper case of the junction box and / or the lower surface of the lower case, and the electric wire is vertically inserted into the case to make contact with the circuit of the circuit body. You may refract in the part to make and connect with an adhesive agent.
【0013】なお、ジャンクションボックス内にバスバ
ー、電線と圧接端子からなる内部回路を収容して、上記
回路体と併用して用いている場合には、従来と同様に、
ジャンクションボックスの上下面にコネクタ収容部を設
けて、ワイヤハーネスとコネクタ接続している。また、
上記回路体の回路も中継ピン等を介して、ワイヤハーネ
スの電線群とコネクタ接続しても良いことは言うまでも
ない。When a junction box contains an internal circuit consisting of a bus bar, an electric wire and a pressure contact terminal and is used in combination with the above-mentioned circuit body, as in the conventional case,
Connector housings are provided on the upper and lower surfaces of the junction box for connector connection with the wire harness. Also,
It goes without saying that the circuit of the circuit body may be connected to the electric wire group of the wire harness by a connector via a relay pin or the like.
【0014】上記電線の芯線と回路とを接続する高導電
性樹脂剤として、回路体の導電部を形成する高導電性樹
脂を用いることができる。その場合、回路体の電線芯線
と接続する回路部の端部には電線挿入溝を有する突起を
設けておき、該電線挿入溝に電線の芯線を挿入した後に
上記突起を加熱溶融して接着することが好ましい。As the highly conductive resin agent for connecting the core wire of the electric wire and the circuit, a highly conductive resin forming the conductive portion of the circuit body can be used. In that case, a protrusion having an electric wire insertion groove is provided at the end of the circuit portion connected to the electric wire core wire of the circuit body, and the electric wire core wire is inserted into the electric wire insertion groove, and then the protrusion is heated and melted to adhere. It is preferable.
【0015】上記回路パターンを構成する導電性樹脂
は、特開平10−237331号、特開平11−342
522号に開示されているように、熱可塑性樹脂中で、
銅、ニッケル、鉄等からなる金属繊維を混入させたもの
と、鉛フリーハンダ(低融点半田)とCu粉等の低融点
合金を分散させた導電性樹脂組成物からなる。The conductive resin forming the above circuit pattern is disclosed in JP-A-10-237331 and JP-A-11-342.
As disclosed in No. 522, in a thermoplastic resin,
It is composed of a mixture of metal fibers made of copper, nickel, iron or the like, and a conductive resin composition in which lead-free solder (low melting point solder) and a low melting point alloy such as Cu powder are dispersed.
【0016】導電性の金属繊維が配合される熱可塑性樹
脂としては、プロピレン、ポリエチレン、ポリスチレ
ン、アクリロニトリル・ブタジエン・スチレン樹脂、変
性ポリフェニレンオキサイド樹脂、ポリブチレンテレフ
タレート樹脂、ポリエチレンテレフタレート樹脂、ポリ
アミド樹脂、芳香族ポリアミド樹脂、ポリフェニレンサ
ルファイド樹脂、液晶ポリマー、ポリエーテルイミド、
ポリベンゾイミダゾール、ポリエーテルエーテルケト
ン、ポリエーテルサルフォン等の樹脂を単独あるいはブ
レンドして用いることが可能であり、特にアクリロニト
リル・ブタジエン・スチレン樹脂、ポリブチレンテレフ
タレート樹脂が好適に用いられる。Examples of the thermoplastic resin to which the conductive metal fibers are mixed include propylene, polyethylene, polystyrene, acrylonitrile butadiene styrene resin, modified polyphenylene oxide resin, polybutylene terephthalate resin, polyethylene terephthalate resin, polyamide resin, and aromatic resin. Polyamide resin, polyphenylene sulfide resin, liquid crystal polymer, polyetherimide,
Resins such as polybenzimidazole, polyether ether ketone, and polyether sulfone can be used alone or in a blend, and acrylonitrile / butadiene / styrene resin and polybutylene terephthalate resin are particularly preferably used.
【0017】上記熱可塑性樹脂に混合して分散させると
共にネットワーク状に接合させる低融点合金は、融点が
100℃以上、好ましくは200℃以上で、射出成形時
に溶融する合金を使用され、Sn−Pb系、Sn−Ag
−Pb系、Sn−Bi系、Sn−Bi−In系、Bi−
Pb系、Bi−Sn系、Sn−Cu系、Sn−Cu−N
i−P系、Sn−Ag系、Sn−Bi−Pb系、Sn−
In系のものが挙げられる。As the low melting point alloy which is mixed with the above thermoplastic resin and dispersed and bonded in a network state, an alloy having a melting point of 100 ° C. or higher, preferably 200 ° C. or higher, which melts during injection molding is used. Sn-Pb System, Sn-Ag
-Pb system, Sn-Bi system, Sn-Bi-In system, Bi-
Pb type, Bi-Sn type, Sn-Cu type, Sn-Cu-N
i-P system, Sn-Ag system, Sn-Bi-Pb system, Sn-
In-based ones are mentioned.
【0018】 上記高導電性樹脂を導電部として用いる
上記回路体は、前記したように、金型による1回目の射
出成形(1色目)を絶縁性樹脂で行って基板部を成形
し、この基板部を別の金型で、2回目の射出成形(2色
目)を高導電性樹脂で行って導電部を成形し、2工程
で、基板部と導電部が平板形状に一体化した回路体を成
形している。As described above, in the circuit body using the highly conductive resin as the conductive portion, the first injection molding (first color) by the mold is performed with the insulating resin to mold the substrate portion, and the substrate is formed. The second part is molded by another mold with a highly conductive resin for the second injection molding (second color) to mold the conductive part. In two steps, a circuit body in which the substrate part and the conductive part are integrated into a flat plate shape is formed. Molded.
【0019】[0019]
【発明の実施の形態】本発明の実施形態を図面を参照し
て説明する。図1は自動車用ワイヤハーネスに接続され
るジャンクションボックス10の分解斜視図であり、1
1はアッパーケース、12はロアケース、13(13
A、13B)は回路体、14はバスバー、15は圧接用
の単芯線、16は圧接端子、17は導電ピン、18はワ
イヤハーネスを構成する外部回路用の電線である。な
お、図示していないが、隣接して積層配置される回路体
13Aとバスバー14との間には絶縁板を介在させてい
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a junction box 10 connected to an automobile wire harness.
1 is an upper case, 12 is a lower case, 13 (13
A, 13B) is a circuit body, 14 is a bus bar, 15 is a single core wire for pressure contact, 16 is a pressure contact terminal, 17 is a conductive pin, and 18 is an electric wire for an external circuit constituting a wire harness. Although not shown, an insulating plate is interposed between the circuit body 13A and the bus bar 14 which are adjacently stacked.
【0020】上記のように、ジャンクションボックス1
0では、回路体13と共に、バスバー14および単芯線
15と圧接端子16とからなる内部回路も用いている
が、回路体13のみで内部回路を構成しても良い。ま
た、回路体13は図示では2層であるが、2層以上の多
層としても良いことは言うまでもない。As described above, the junction box 1
In No. 0, the internal circuit including the bus bar 14, the single core wire 15 and the pressure contact terminal 16 is used together with the circuit body 13, but the internal circuit may be configured by only the circuit body 13. Further, although the circuit body 13 has two layers in the drawing, it goes without saying that the circuit body 13 may have two or more layers.
【0021】上記回路体13(13A、13B)は、図
2(A)(B)(C)に示す構成で、絶縁性樹脂からな
る基板部20に、高導電性樹脂からなる導電部21(図
中、斜線で示す)の表面が露出した状態で埋設されて、
平板形状に一体的に成形されている。The circuit body 13 (13A, 13B) has a structure shown in FIGS. 2A, 2B and 2C, and a conductive portion 21 (made of a highly conductive resin) is formed on a substrate portion 20 made of an insulating resin. (Indicated by diagonal lines in the figure) is buried with the surface exposed,
It is integrally molded into a flat plate shape.
【0022】上記導電部21の表面21aは、基板部2
0の上面20aと面一に露出して、所要の回路が形状さ
れている。また、外部回路用電線18と接続する回路C
は、回路体13の一辺側の端縁まで並列状態で延在させ
ている。基板部20の下面20bには導電部21が露出
しておらず、絶縁性樹脂層のみからなる絶縁面としてい
る。また、基板部20の外周面20cにも導電部21を
露出させている。The surface 21a of the conductive portion 21 is the substrate portion 2
A required circuit is formed so as to be exposed flush with the upper surface 20a of 0. Also, a circuit C connected to the external circuit electric wire 18
Are extended in parallel to one side edge of the circuit body 13. The conductive portion 21 is not exposed on the lower surface 20b of the substrate portion 20 and is an insulating surface formed only of an insulating resin layer. The conductive portion 21 is also exposed on the outer peripheral surface 20c of the substrate portion 20.
【0023】上記回路体13の製造は、まず、上下金型
のキャビテイに絶縁性樹脂を注入して、基板部20のみ
からなる一次成形品を射出成型する。この状態では基板
部20に導電部21は設けられていない。ついで、上型
を別の金型に変えて、下型と接合して型締めし、基板部
20と交換した上型との間にキャビテイを形成し、この
キャビテイに高導電性樹脂を注入して導電部21を射出
成形する。これにより、基板部20の表面に所要の回路
形状の導電部21を備えた回路体13が一体成形され
る。In the manufacture of the circuit body 13, first, an insulating resin is injected into the cavities of the upper and lower molds, and a primary molded product composed only of the substrate portion 20 is injection molded. In this state, the board portion 20 is not provided with the conductive portion 21. Then, the upper mold is changed to another mold, the lower mold is joined and the mold is clamped, a cavity is formed between the substrate part 20 and the upper mold which has been exchanged, and a highly conductive resin is injected into this cavity. The conductive part 21 is injection molded. As a result, the circuit body 13 including the conductive portion 21 having a desired circuit shape is integrally formed on the surface of the substrate portion 20.
【0024】上記回路体13の導電部21からなる回路
のうち、ワイヤハーネスの電線18を接続する必要があ
る回路Cは、前記したように、回路体13の一辺に集中
して並列に設けており、これら回路Cに対して、図3
(A)(B)に示すように、電線18の端末から露出さ
せた芯線18aを回路Cの上面に載置し、高導電性接着
剤30を塗布して固着し、電線18と回路Cとを電気接
続している。Among the circuits consisting of the conductive portions 21 of the circuit body 13, the circuit C which needs to be connected to the electric wire 18 of the wire harness is provided in parallel on one side of the circuit body 13 as described above. For these circuits C,
As shown in (A) and (B), the core wire 18a exposed from the end of the electric wire 18 is placed on the upper surface of the circuit C, and the highly conductive adhesive 30 is applied to fix the core wire 18a to the electric wire 18 and the circuit C. Are electrically connected.
【0025】上記電線wは平行配線状態で、図4に示す
ように、アッパーケース11とロアケース12との側面
に嵌合部に設けた開口32よりボックス内部にコネクタ
レスで直接に挿入している。即ち、回路体13に電線1
8を接着固定してロアケース12内に積層配置してお
き、その後、アッパーケース11を被せて、開口32よ
り電線18を外部に引き出している。As shown in FIG. 4, the electric wire w is directly inserted into the box without a connector through an opening 32 provided in a fitting portion on a side surface of the upper case 11 and the lower case 12 in a parallel wiring state. . That is, the electric wire 1 is connected to the circuit body 13.
8 are bonded and fixed to be stacked and arranged in the lower case 12, and then the upper case 11 is covered and the electric wire 18 is drawn out from the opening 32 to the outside.
【0026】回路体13Aと13Bとを積層配置し、且
つ、これら回路体13A、13Bにそれぞれ電線18を
接着固定する場合には、図5に示すように、回路対13
Aと13Bの絶縁面を当接させて積層し、上層の回路体
13Aの上面の回路に電線18−1を接着し、下層の回
路体18の下面の回路に電線18−2を接着している。When the circuit bodies 13A and 13B are laminated and the electric wires 18 are adhesively fixed to the circuit bodies 13A and 13B, respectively, as shown in FIG.
The insulating surfaces of A and 13B are brought into contact with each other to be laminated, the electric wire 18-1 is adhered to the upper circuit of the upper circuit body 13A, and the electric wire 18-2 is adhered to the lower circuit of the lower circuit body 18. There is.
【0027】なお、図6(A)に示すように、電線の芯
線18aと固着する高導電性樹脂からなる回路部分に、
U形状の電線挿入溝35aを有する突起35を一体成形
で予め設けておき、図6(B)に示すように、電線挿入
溝35aに電線の芯線18aを挿入し、その後、突起3
5の高導電性樹脂を加熱溶融して、芯線18aに接着し
てもよい。As shown in FIG. 6 (A), the circuit portion made of a highly conductive resin that is fixed to the core wire 18a of the electric wire,
The projection 35 having the U-shaped wire insertion groove 35a is previously provided by integral molding, and the core wire 18a of the wire is inserted into the wire insertion groove 35a as shown in FIG.
The high-conductivity resin of No. 5 may be melted by heating and bonded to the core wire 18a.
【0028】また、電線18と回路との接着位置を並列
にする必要はなく、図7に示すように、所要の回路位置
まで電線18を延在させ、その端末芯線18aを回路C
と接着固定すればよい。その際、電線18は端末芯線以
外は絶縁被覆されているため、他の回路の上面を接して
も問題はなく、回路体18の構成を変更することなく、
電線18の端末芯線と回路との接着位置を変えるだけ
で、回路変更に対応させることができる。Further, it is not necessary to arrange the adhesion positions of the electric wire 18 and the circuit in parallel, and as shown in FIG. 7, the electric wire 18 is extended to a desired circuit position and its terminal core wire 18a is connected to the circuit C.
It can be fixed by adhesion. At that time, since the electric wire 18 is insulation-coated except for the terminal core wire, there is no problem even if the upper surface of another circuit is contacted, and the configuration of the circuit body 18 is not changed.
The circuit can be changed only by changing the bonding position between the terminal core wire of the electric wire 18 and the circuit.
【0029】上記のように、電線18と回路体13の回
路を構成する導電部21とを直接に接続することが出来
るが、アッパーケース11とロアケース12に設けたコ
ネクタ収容部11a、12a、ヒューズ収容部11b、
12b,リレー収容部12cに収容する端子とは、図8
に示すように、上下両端にタブ17a、17bを形成し
た導通ピン17を介して行ってもよい。即ち、回路体1
3の導電部21に設けた挿入孔26に導電ピン17の一
端のタブ17bを圧入して面接触させる一方、コネクタ
収容部に挿入するコネクタ内の電線端末のメス端子と導
電ピン17の他端のタブ17aとを嵌合接続している。
ヒューズ、リレーの端子と接続する場合は導電ピン17
の一端にメス端子部を設けておけばよい。As described above, the electric wire 18 and the conductive portion 21 constituting the circuit of the circuit body 13 can be directly connected, but the connector housing portions 11a and 12a provided in the upper case 11 and the lower case 12 and the fuse. Housing portion 11b,
12b and the terminals accommodated in the relay accommodating portion 12c are as shown in FIG.
Alternatively, as shown in FIG. 5, the conductive pin 17 may have tabs 17a and 17b formed at both upper and lower ends. That is, the circuit body 1
While the tab 17b at one end of the conductive pin 17 is press-fitted into the insertion hole 26 provided in the conductive portion 21 of No. 3 to make surface contact, the female terminal of the wire terminal in the connector to be inserted into the connector accommodating portion and the other end of the conductive pin 17 are inserted. The tab 17a is fitted and connected.
Conductive pin 17 when connecting to a fuse or relay terminal
It suffices to provide a female terminal portion at one end of.
【0030】[0030]
【発明の効果】以上の説明より明らかなように、本発明
によれば、ジャンクションボックスの内部回路として、
高導電性樹脂からなる導電部を絶縁性樹脂からなる基板
部と一体成形した回路体を用いるため、回路設計の自由
度が高く、高密度配索が可能で、ジャンクションボック
スの小型化、軽量化などを図ることができる。また、該
回路体の回路を構成する導電部に対して、外部回路用電
線の端末芯線を当接させて、高導電性接着剤を用いて接
着すると、コネクタレスで電線と内部回路とを接続する
ことができる。As is apparent from the above description, according to the present invention, as the internal circuit of the junction box,
Uses a circuit body in which the conductive part made of highly conductive resin is integrally molded with the substrate part made of insulating resin, allowing a high degree of freedom in circuit design, enabling high-density wiring, and making the junction box smaller and lighter. And so on. Further, when the terminal core wire of the electric wire for the external circuit is brought into contact with the conductive portion forming the circuit of the circuit body and bonded by using the highly conductive adhesive, the electric wire and the internal circuit are connected without a connector. can do.
【0031】よって、電線側では端子接続、該端子のコ
ネクタ組みつけが不要になる一方、ジャンクションボッ
クスの内部回路側ではタブ等の端子を設ける必要がなく
なり、部品点数、組みつけ工数の大幅な減少を図ること
ができ、その結果、ジャンクションボックスの製作コス
トの低減化を達成できる。Therefore, on the electric wire side, terminal connection and connector assembly of the terminal are not required, but on the internal circuit side of the junction box, it is not necessary to provide terminals such as tabs, and the number of parts and the number of assembling steps are greatly reduced. As a result, the manufacturing cost of the junction box can be reduced.
【0032】さらに、電線の端末芯線と回路との接着位
置を変えるだけで回路構成を簡単に変えることができ、
回路設計の変更に容易に対応させることができ、よっ
て、回路体自体の共用化を図ることができる。Furthermore, the circuit configuration can be easily changed by simply changing the bonding position between the terminal core wire of the electric wire and the circuit.
It is possible to easily cope with a change in the circuit design, and thus it is possible to share the circuit body itself.
【図1】 本発明の実施形態のジャンクションボックス
の分解斜視図である。FIG. 1 is an exploded perspective view of a junction box according to an embodiment of the present invention.
【図2】 回路体を示し、(A)は斜視図、(B)は
(A)のX矢視図、(C)は断面図である。2A and 2B show a circuit body, in which FIG. 2A is a perspective view, FIG. 2B is a view taken along arrow X in FIG. 2A, and FIG.
【図3】 (A)(B)は回路体の回路と電線との接続
工程を示す図面である。3A and 3B are drawings showing a process of connecting a circuit of a circuit body and an electric wire.
【図4】 回路体の回路と接続した電線のジャンクショ
ンボックスへの挿入形態を示す概略斜視図である。FIG. 4 is a schematic perspective view showing an insertion mode of an electric wire connected to a circuit of a circuit body into a junction box.
【図5】 変形例を示す概略断面図である。FIG. 5 is a schematic sectional view showing a modified example.
【図6】 (A)は他の変形例を示す概略断面図、
(B)は電線との接着工程を示す概略断面図である。FIG. 6A is a schematic cross-sectional view showing another modification,
(B) is a schematic sectional drawing which shows the adhesion process with an electric wire.
【図7】 電線と回路との接続位置の変形例を示す概略
図である。FIG. 7 is a schematic diagram showing a modified example of a connection position between an electric wire and a circuit.
【図8】 回路体と電線とをコネクタ接続する場合の方
法を示す概略図である。FIG. 8 is a schematic view showing a method for connecting a circuit body and an electric wire with a connector.
【図9】 従来のジャンクションボックスの分解斜視図
である。FIG. 9 is an exploded perspective view of a conventional junction box.
10 ジャンクションボックス 11 アッパーケース 12 ロアケース 13(13A、13B) 回路体 14 バスバー 15 単芯線 17 導通ピン 18 外部回路用電線 18a 芯線 20 基板部 21 導電部 30 高導電性接着剤 32 開口 35 突起 35a 電線挿入溝 C 回路 10 junction box 11 upper case 12 lower case 13 (13A, 13B) Circuit body 14 Busbar 15 Single core wire 17 Conduction pin 18 Electric wire for external circuit 18a core wire 20 board part 21 Conductive part 30 Highly conductive adhesive 32 openings 35 Protrusion 35a Wire insertion groove C circuit
フロントページの続き (72)発明者 小林 宣史 三重県四日市市西末広町1番14号 住友 電装株式会社内 (56)参考文献 特開 平2−139216(JP,A) 特開 平9−92987(JP,A) 特開 平11−312849(JP,A) 特開 平6−291160(JP,A) 特開 平10−173305(JP,A) 特開 昭63−7128(JP,A) 実開 平5−11472(JP,U) 実開 平5−77817(JP,U) (58)調査した分野(Int.Cl.7,DB名) H02G 3/16 B60R 16/02 H05K 5/00 Front page continuation (72) Inventor Nobufumi Kobayashi 1-14 Nishisuehiro-cho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. (56) Reference JP-A-2-139216 (JP, A) JP-A-9-92987 (JP, A) JP-A-11-312849 (JP, A) JP-A-6-291160 (JP, A) JP-A-10-173305 (JP, A) JP-A-63-7128 (JP, A) Actual Kaihei 5-11472 (JP, U) Actual Kaihei 5-77817 (JP, U) (58) Fields surveyed (Int.Cl. 7 , DB name) H02G 3/16 B60R 16/02 H05K 5/00
Claims (4)
路体を備え、上記回路体は、金型による1回目の絶縁性樹脂の射出成
形(1色目)で基板部が成形され、この基板部を別の金
型内に移して、熱可塑性樹脂中に金属繊維あるいは低融
点合金を分散させてネットワーク状に接合させている高
導電性樹脂を射出成形(2色目)し、この2工程で、絶
縁性樹脂からなる基板部に高導電性樹脂からなる導電部
の表面が露出した状態で埋設されて一体的に成形され、
該 導電部は所要の回路に形成されており、 ジャンクションボックスの外面に設けた開口より外部回
路を構成する電線を挿入し、該電線端末から露出させた
芯線を、上記回路体の回路上に載置して、高導電性接着
剤で固着して電気接続していることを特徴とするジャン
クションボックスの内部回路と電線との接続構造。1. A junction box is provided with a circuit body housed in the junction box, wherein the circuit body is formed by a first injection molding of an insulating resin.
The board part is molded in the shape (first color), and this board part is
Move it into the mold and add metal fibers or low melting
A high-performance structure in which point alloys are dispersed and joined in a network.
Injection molding (second color) of conductive resin and
Conductive part made of highly conductive resin on the substrate made of edge resin
It is embedded and molded integrally with the surface of the
The conductive portion is formed in a required circuit, and an electric wire constituting an external circuit is inserted through an opening provided on the outer surface of the junction box, and the core wire exposed from the electric wire end is mounted on the circuit of the circuit body. A connection structure between an internal circuit of a junction box and an electric wire, characterized in that it is fixed and electrically connected by a highly conductive adhesive.
た、上記電線挿入用の開口をジャンクションボックスの
アッパーケースとロアケースとが接合する側面に設けて
いる請求項1に記載のジャンクションボックスの内部回
路と電線との接続構造。2. The inside of the junction box according to claim 1, wherein the circuit body has a substantially flat plate shape, and the opening for inserting the electric wire is provided on a side surface where the upper case and the lower case of the junction box are joined. Connection structure between circuit and electric wire.
電性接着剤として、回路体の導電部を形成する高導電性
樹脂を用いている請求項1または請求項2に記載のジャ
ンクションボックスの内部回路と電線との接続構造。3. The junction box according to claim 1, wherein a highly conductive resin that forms a conductive portion of the circuit body is used as a highly conductive adhesive that connects the core wire of the electric wire and a circuit. Connection structure between the internal circuit and the electric wire.
は電線挿入溝を有する突起を設け、該電線挿入溝に挿入
された電線の芯線を上記突起を加熱溶融して接着してい
る請求項3に記載のジャンクションボックスの内部回路
と電線との接続構造。4. A projection having an electric wire insertion groove is provided on a circuit connected to the electric wire core wire of the circuit body, and the core wire of the electric wire inserted in the electric wire insertion groove is adhered by heating and melting the projection. Item 3. A connection structure between an internal circuit of the junction box and an electric wire according to Item 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000054586A JP3506094B2 (en) | 2000-02-29 | 2000-02-29 | Connection structure between the internal circuit of the junction box and electric wires |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000054586A JP3506094B2 (en) | 2000-02-29 | 2000-02-29 | Connection structure between the internal circuit of the junction box and electric wires |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001251727A JP2001251727A (en) | 2001-09-14 |
JP3506094B2 true JP3506094B2 (en) | 2004-03-15 |
Family
ID=18575821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000054586A Expired - Fee Related JP3506094B2 (en) | 2000-02-29 | 2000-02-29 | Connection structure between the internal circuit of the junction box and electric wires |
Country Status (1)
Country | Link |
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JP (1) | JP3506094B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7009394B2 (en) | 2016-06-02 | 2022-01-25 | レイセオン カンパニー | Radial compliant and axially free-running connector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002019544A (en) * | 2000-07-10 | 2002-01-23 | Sumitomo Wiring Syst Ltd | Vehicular body inner board provided with circuit |
-
2000
- 2000-02-29 JP JP2000054586A patent/JP3506094B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7009394B2 (en) | 2016-06-02 | 2022-01-25 | レイセオン カンパニー | Radial compliant and axially free-running connector |
Also Published As
Publication number | Publication date |
---|---|
JP2001251727A (en) | 2001-09-14 |
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