JP2001218336A - Bus bar structure for electrical connecting box - Google Patents

Bus bar structure for electrical connecting box

Info

Publication number
JP2001218336A
JP2001218336A JP2000025063A JP2000025063A JP2001218336A JP 2001218336 A JP2001218336 A JP 2001218336A JP 2000025063 A JP2000025063 A JP 2000025063A JP 2000025063 A JP2000025063 A JP 2000025063A JP 2001218336 A JP2001218336 A JP 2001218336A
Authority
JP
Japan
Prior art keywords
bus bar
burrs
rib
groove
punching
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.)
Pending
Application number
JP2000025063A
Other languages
Japanese (ja)
Inventor
Haruyoshi Murofushi
治義 室伏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yazaki Corp
Original Assignee
Yazaki Corp
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 Yazaki Corp filed Critical Yazaki Corp
Priority to JP2000025063A priority Critical patent/JP2001218336A/en
Publication of JP2001218336A publication Critical patent/JP2001218336A/en
Pending legal-status Critical Current

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  • Non-Insulated Conductors (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a bus bar structure for electrical connection box which can prevent the occurrence of leakage currents, even if burrs are produced in a buss bar forming process. SOLUTION: In this bus bar structure, in which a plurality of bus bars 11 and 11 which are obtained by punching a conductive plate are accomodated respectively and laid planarly in groove sections 13B which are demarcated by a rib 13A formed on the surface of an insulating substrate 13, the bus bars 11 are arranged in the groove sections 13B, so that the faces of the bars 11 opposite to their punching start faces 11A comes into contact with the bottoms of the groove sections 13B. Even if burrs 12 are produced in the end sections of the bars 11, the burrs 13 will not exist on the rib 13A, and the occurrence of leakage currents, which are generated when the burrs 12 come closer to each other, can be prevented.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、電気接続箱のブス
バー構造に関し、詳しくは、例えば、ワイヤーハーネス
の相互接続に用いられる電気接続箱の内部回路を構成す
るブスバー構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar structure of an electric connection box, and more particularly, to a bus bar structure forming an internal circuit of an electric connection box used for interconnecting wire harnesses.

【0002】[0002]

【従来の技術】従来、電気接続箱に用いられるブスバー
(回路板)は、一枚の金属板(導電板)から所望のパタ
ーンとなるように打ち抜かれて形成(プレス成形)され
ている。図4に示すように、プレス成形されたブスバー
1は、所定の端部1Aをタブ端子として起立させたもの
を、基板(配線板)2上のリブ2Aに沿って平面的に配
索されている。このようにブスバー1が配索された基板
2は、電気接続箱3内に一層又は多層になるように重ね
られて収容されている。
2. Description of the Related Art Conventionally, a bus bar (circuit board) used for an electric junction box is formed by punching a single metal plate (conductive plate) into a desired pattern (press forming). As shown in FIG. 4, the bus bar 1 formed by press forming is formed by erecting a bus bar 1 having a predetermined end 1 A upright as a tab terminal along a rib 2 A on a substrate (wiring board) 2. I have. The board 2 on which the busbars 1 are arranged as described above is housed in the electric junction box 3 in a stacked or multilayered manner.

【0003】本来、図5に示すように、基板2のリブ2
Aを挟んで隣接するブスバー1,1同士は、リーク電流
を最小限に抑えるべく一定の距離W1となるように設定
されている。
[0005] Originally, as shown in FIG.
The bus bars 1, 1 adjacent to each other across A are set to have a constant distance W1 in order to minimize the leak current.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、図6に
示すように、ブスバー1を打ち抜き加工によりプレス成
形する際に、プレス方向(図6中矢印で示す)と逆の部
位にバリ1Bが発生することがある。このようにバリ1
Bが発生したブスバー1を配索した基板2では、図7に
示すように、リブ2Aの上方に向けてブスバー1のバリ
1Bが突出する。このため、図8に示すように、複数の
基板2,2を重ねた際に、基板2とブスバー1との接触
面と反対方向にバリ1Bを配置すると、細く変形し易い
バリ1Bがリブ2Aの上面に沿って折り曲げられて、隣
接する各バリ1B,1B同士の距離W2となり、リブ2
Aを挟む各ブスバー1,1同士の距離が本来の設定距離
W1より短くなるという問題が生じる。このように、バ
リ1B,1B同士が近接すると、リーク電流が発生し易
くなり、電気接続箱の信頼性の低下を招くものであっ
た。このような問題は、複数の基板2,2を重ねた場合
に限るものではなく、一枚の基板2においても発生し得
る問題である。
However, as shown in FIG. 6, when the bus bar 1 is press-formed by punching, burrs 1B are generated at a portion opposite to the pressing direction (indicated by an arrow in FIG. 6). Sometimes. In this way, burr 1
In the substrate 2 on which the bus bar 1 in which B is generated is arranged, as shown in FIG. 7, the burr 1B of the bus bar 1 protrudes above the rib 2A. For this reason, as shown in FIG. 8, when a plurality of substrates 2 and 2 are stacked, if the burrs 1B are arranged in a direction opposite to the contact surface between the substrate 2 and the bus bar 1, the burrs 1B which are thin and easily deformed become ribs 2A. Is bent along the upper surface of the rib, and the distance between adjacent burrs 1B, 1B becomes W2, and the rib 2
There is a problem that the distance between the bus bars 1, 1 sandwiching A becomes shorter than the originally set distance W1. As described above, when the burrs 1B and 1B are close to each other, a leak current is likely to occur, and the reliability of the electrical junction box is reduced. Such a problem is not limited to the case where the plurality of substrates 2 and 2 are stacked, but is a problem that can occur even with one substrate 2.

【0005】そこで、本発明は、ブスバーの形成工程で
バリが発生してもリーク電流の発生を防止することがで
きる電気接続箱のブスバー構造を提供することを目的と
している。
Accordingly, an object of the present invention is to provide a bus bar structure of an electric junction box which can prevent the occurrence of a leak current even if burrs are generated in a bus bar forming step.

【0006】[0006]

【課題を解決するための手段】請求項1の発明は、導電
板を打ち抜き加工(プレス加工)してなる複数のブスバ
ーが、絶縁性基板の表面に形成したリブにより画成され
る溝部内にそれぞれ収容されて平面的に配索されて成る
電気接続箱のブスバー構造において、前記ブスバーの打
ち抜き開始面側と反対の面を前記溝部の底面に接触する
ように配置したことを特徴とする。
According to a first aspect of the present invention, a plurality of bus bars formed by punching (pressing) a conductive plate are provided in a groove defined by a rib formed on the surface of an insulating substrate. In a busbar structure of an electric junction box, each of which is accommodated and wired in a plane, a surface of the busbar opposite to a punching start surface side is arranged to be in contact with a bottom surface of the groove.

【0007】このような構成の請求項1の発明では、絶
縁性基板の溝部に収容配索されるブスバー同士が絶縁性
基板に形成されたリブにより区画される。ブスバーの打
ち抜き開始面と反対の面側のエッジには、バリが発生す
る可能性があるが、打ち抜き開始面と反対の面を溝部の
底面に接触するように配置したことで、バリがリブとブ
スバーとの間の隙間に収容されてリーク電流の発生の原
因となることを防止できる。また、バリ自体が細く変形
し易いため、溝部の底面側にバリが位置してもブスバー
を押し込むことで容易に変形して、ブスバーを溝部へ収
容するのを干渉することがない。
According to the first aspect of the present invention, the bus bars accommodated and routed in the grooves of the insulating substrate are separated by the ribs formed on the insulating substrate. Burrs may be generated at the edge of the bus bar opposite to the punching start surface, but the burrs are located on the edge opposite to the punching start surface so that it contacts the bottom of the groove. It can be prevented from being accommodated in the gap between the bus bar and causing a leak current. Further, since the burr itself is thin and easily deformed, even if the burr is located on the bottom surface side of the groove, the burr is easily deformed by pushing the bus bar, and does not interfere with the accommodation of the bus bar in the groove.

【0008】また、請求項2の発明は、導電板を打ち抜
き加工(プレス加工)してなる複数のブスバーが、絶縁
性基板の表面に形成したリブにより画成される溝部内に
それぞれ収容されて平面的に配索されて成る電気接続箱
のブスバー構造において、前記リブの幅寸法の短い部分
の両側に配置される前記ブスバーは、打ち抜き開始面と
反対側の面側からエッジ部にプレス加工が施されている
ことを特徴とする。
According to a second aspect of the present invention, a plurality of busbars formed by stamping (pressing) a conductive plate are respectively accommodated in grooves defined by ribs formed on the surface of an insulating substrate. In the bus bar structure of the electric junction box arranged in a plane, the bus bars disposed on both sides of the short width portion of the rib are formed by pressing the edge portion from the surface opposite to the punching start surface to the edge portion. It is characterized by having been given.

【0009】このような構成の請求項2の発明では、ブ
スバーの打ち抜き開始面と反対側の面側のエッジ部にバ
リが発生していたとしてもプレス加工によりバリが取り
去られるため、リブの上面に沿ってバリ同士の距離が近
接するのを防止できる。さらに、プレス加工が施された
面を上側にしても下側にしても、リブの幅寸法の短い部
分ではリーク電流の発生を有効に防止することができ
る。
According to the second aspect of the present invention, even if burrs are formed on the edge of the bus bar opposite to the punching start surface, the burrs are removed by press working. Can be prevented from approaching each other along the distance. Further, even when the pressed surface is set on the upper side or the lower side, the generation of the leak current can be effectively prevented in the portion where the width dimension of the rib is short.

【0010】[0010]

【発明の実施の形態】以下、本発明に係る電気接続箱の
ブスバー構造の詳細を図面に示す実施形態に基づいて説
明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the bus bar structure of an electric junction box according to the present invention will be described below with reference to the embodiments shown in the drawings.

【0011】図1は、本発明に係る電気接続箱のブスバ
ー構造の第1の実施形態を示す要部の断面図である。ブ
スバー11は、一枚の金属板(導電板)から所望の回路
パターンとなるように打ち抜かれて形成(プレス成形)
されている。このブスバー11は、表面(打ち抜き開始
面)11A側からプレス加工されて裏面(打ち抜き開始
面と反対側の面)11B側にバリ12が発生する場合が
ある。
FIG. 1 is a sectional view of a main part showing a first embodiment of a bus bar structure of an electric junction box according to the present invention. The bus bar 11 is formed by punching a single metal plate (conductive plate) into a desired circuit pattern (press forming).
Have been. The bus bar 11 is pressed from the front surface (punching start surface) 11A side, and burrs 12 may be generated on the back surface (surface opposite to the punching start surface) 11B side.

【0012】図1に示すように、プレス成形されたブス
バー11は、絶縁性樹脂でなる基板13上のリブ13A
に沿って平面的に配索されている。この基板13は、ブ
スバー11の回路パターンに対応してリブ13Aが形成
され、該リブ13Aの両側にはブスバー11を収容する
溝部13Bが形成されている。そして、リブ13Aの上
端と溝部13Bの底面との距離寸法は、ブスバー11の
厚さ寸法と略同一となるように設定されている。
As shown in FIG. 1, a bus bar 11 formed by pressing is provided with a rib 13A on a substrate 13 made of an insulating resin.
It is routed along the plane. The substrate 13 has ribs 13A corresponding to the circuit pattern of the bus bars 11, and grooves 13B for accommodating the bus bars 11 are formed on both sides of the ribs 13A. The distance between the upper end of the rib 13A and the bottom of the groove 13B is set to be substantially the same as the thickness of the bus bar 11.

【0013】このような基板13の溝部13Bには、ブ
スバー11が裏面11Bを下にするように配置されてい
る。即ち、プレス成形によりバリ12が発生する可能性
のある裏面11Bを下にして配置させることにより、バ
リ12がリブ13Aとブスバー11との間の隙間に入り
込むため、リブ13Aの上面に突出することがないよう
に設定されている。また、バリ12は細く薄いため、基
板13の溝部13B内にブスバー11を押し込むことに
より、容易に変形して溝部13Bの内壁面に沿った形状
になる。このため、リブ13Aを挟んで配索される各ブ
スバー11,11同士の距離は、リブ13Aの幅寸法W
より短くなることがなく、電気的絶縁性を良好に保持す
ることができる。このようなブスバー構造とすることに
より、各ブスバー11,11同士の間にリーク電流が発
生するのを抑制することが可能となる。
The bus bar 11 is disposed in the groove 13B of the substrate 13 such that the back surface 11B faces down. In other words, by disposing the back surface 11B on which the burrs 12 are likely to be generated by press molding downward, the burrs 12 enter the gaps between the ribs 13A and the bus bars 11, and thus project on the upper surface of the ribs 13A. There are no settings. Further, since the burr 12 is thin and thin, the bus bar 11 is pressed into the groove 13B of the substrate 13 to be easily deformed to have a shape along the inner wall surface of the groove 13B. For this reason, the distance between the busbars 11, 11 arranged with the rib 13A interposed therebetween is determined by the width W of the rib 13A.
It is possible to maintain good electrical insulation without becoming shorter. With such a busbar structure, it is possible to suppress the occurrence of a leak current between the busbars 11.

【0014】以上、本実施形態のブスバー構造について
説明したが、例えば図4に示すようなブスバーが基板に
配設された構造において、リブを介して隣接するブスバ
ー同士の距離が短い部分では、以下に説明するような方
法を用いてもよい。
The busbar structure of the present embodiment has been described above. For example, in the structure in which the busbars are arranged on the substrate as shown in FIG. May be used.

【0015】即ち、図2に示す本発明の第2の実施形態
のように、ブスバー11をプレス成形する際に、プレス
方向(図2中矢印で示す)の反対側に発生したバリ12
を、再度プレス方向と逆方向からプレス加工することに
より除去又は変形させて図2に示すようなカット面14
を形成する。
That is, as in the second embodiment of the present invention shown in FIG. 2, when the bus bar 11 is press-formed, the burrs 12 generated on the side opposite to the pressing direction (indicated by the arrow in FIG. 2).
Is again removed or deformed by press working from the direction opposite to the pressing direction, so that the cut surface 14 shown in FIG.
To form

【0016】そして、図3に示すように、カット面14
が形成された裏面11Bを溝部13Bの底面側に接触す
るように配置することにより、ブスバー11を溝部13
B内に収容し易くすることができる。
Then, as shown in FIG.
The bus bar 11 is disposed such that the bus bar 11 is in contact with the bottom surface of the groove 13B so that the bus bar 11 is in contact with the bottom surface of the groove 13B.
B can be easily accommodated.

【0017】尚、この方法では、ブスバー11において
カット面14を形成した裏面11Bを下に向けて配置し
たが、リブ13Aの幅寸法の短い部分のブスバー11の
エッジのバリ12を取っているため、リーク電流の発生
し易い箇所でのリーク電流の発生は確実に防止できるた
め、裏面11Bを上に向けて配置してよい。
In this method, the rear surface 11B having the cut surface 14 formed on the bus bar 11 is disposed facing downward. However, the burrs 12 on the edge of the bus bar 11 in the short width portion of the rib 13A are removed. Since the occurrence of a leak current at a location where a leak current is likely to occur can be reliably prevented, the rear surface 11B may be arranged with the back surface facing upward.

【0018】このように、基板13においてリブ13A
の幅寸法が短い部分、即ち、各ブスバー11,11同士
が近接する部分でのバリ12を取るという方法では、各
ブスバー11,11同士が近接していない部分のバリ取
り加工(プレス加工)を要しないため、コスト高になる
のを防止することができる。
As described above, the rib 13A on the substrate 13
In the method of removing the burrs 12 at a portion where the width dimension of the busbars 11 is short, that is, at a portion where the busbars 11 and 11 are close to each other, deburring (pressing) is performed at a portion where the busbars 11 and 11 are not close to each other. Since it is not necessary, it is possible to prevent an increase in cost.

【0019】以上、前記各実施形態について説明した
が、本発明はこれに限定されるものではなく、構成の要
旨に付随する各種の変更が可能である。
Although the above embodiments have been described above, the present invention is not limited to these embodiments, and various changes accompanying the gist of the configuration are possible.

【0020】[0020]

【発明の効果】以上の説明から明らかなように、請求項
1の発明によれば、打ち抜き開始面と反対側の面を溝部
の底面に接触するように配置したことで、バリがリブと
ブスバーとの間の隙間に収容されてリーク電流の発生の
原因となることを防止する効果がある。また、バリ自体
が細く変形し易いため、溝部の底面側にバリが位置して
もブスバーを押し込むことで容易に変形して、ブスバー
を溝部へ収容するのを干渉することがなく、組み立て性
を阻害することなく極めて容易に製造することができ
る。
As is apparent from the above description, according to the first aspect of the present invention, the surface opposite to the punching start surface is arranged so as to be in contact with the bottom surface of the groove, so that the burrs and the busbar are formed. Has the effect of preventing it from being accommodated in the gap between them and causing leakage current. Also, because the burr itself is thin and easily deformed, even if the burr is located on the bottom side of the groove, it is easily deformed by pushing the bus bar, and it does not interfere with the accommodation of the bus bar in the groove, making assembly easier. It can be produced very easily without hindrance.

【0021】また、請求項2の発明によれば、ブスバー
の打ち抜き開始面と反対側の面側のエッジ部にバリが発
生していたとしてもプレス加工によりバリが取り去られ
るため、リブの上面に沿ってバリ同士の距離が近接する
のを防止する効果がある。さらに、プレス加工が施され
た面を上側にしても下側にしても、リブの幅寸法の短い
部分ではリーク電流の発生を有効に防止することがで
き、組み立ての利便性を有する。
According to the second aspect of the present invention, even if burrs are formed on the edge of the bus bar opposite to the punching start surface, the burrs are removed by pressing, so that the upper surface of the rib is This has the effect of preventing the distance between burrs from approaching along. Furthermore, whether the pressed surface is on the upper side or the lower side, it is possible to effectively prevent the occurrence of a leak current in a portion where the width dimension of the rib is short, which is convenient for assembly.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る電気接続箱のブスバー構造の第1
の実施形態を示す要部の断面図である。
FIG. 1 shows a first example of a busbar structure of an electric junction box according to the present invention.
It is sectional drawing of the principal part which shows embodiment.

【図2】本発明の第2の実施形態の付加的加工工程を示
す要部の断面図である。
FIG. 2 is a sectional view of a main part showing an additional processing step according to a second embodiment of the present invention.

【図3】本発明の第2の実施形態の付加的加工工程を施
した例を示す要部の断面図である。
FIG. 3 is a sectional view of a main part showing an example in which an additional processing step according to a second embodiment of the present invention has been performed.

【図4】ブスバー構造を備えた電気接続箱の分解斜視図
である。
FIG. 4 is an exploded perspective view of an electric junction box having a bus bar structure.

【図5】従来の電気接続箱のブスバー構造を示す要部の
断面図である。
FIG. 5 is a sectional view of a main part showing a busbar structure of a conventional electric junction box.

【図6】従来のブスバーの打ち抜き加工工程を示す要部
の断面図である。
FIG. 6 is a cross-sectional view of a main part showing a conventional bus bar punching process.

【図7】従来の電気接続箱のブスバー構造の要部の断面
図である。
FIG. 7 is a sectional view of a main part of a busbar structure of a conventional electric junction box.

【図8】従来の電気接続箱において基板を積層した状態
を示す要部の断面図である。
FIG. 8 is a cross-sectional view of a main part showing a state in which boards are stacked in a conventional electric junction box.

【符号の説明】[Explanation of symbols]

11 ブスバー 11A 表面(打ち抜き開始面) 11B 裏面(打ち抜き開始面と反対側の面) 13 絶縁性基板 13A リブ 13B 溝部 11 Bus bar 11A Front surface (punching start surface) 11B Back surface (surface opposite to punching start surface) 13 Insulating substrate 13A Rib 13B Groove

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 導電板を打ち抜き加工してなる複数のブ
スバーが、絶縁性基板の表面に形成したリブにより画成
される溝部内にそれぞれ収容されて平面的に配索されて
成る電気接続箱のブスバー構造において、 前記ブスバーの打ち抜き開始面と反対側の面を前記溝部
の底面に接触するように配置したことを特徴とする電気
接続箱のブスバー構造。
A plurality of bus bars formed by stamping a conductive plate are respectively housed in grooves defined by ribs formed on the surface of an insulating substrate, and are electrically wired in a plane. The busbar structure of an electrical junction box, wherein a surface of the busbar opposite to a punching start surface is arranged to be in contact with a bottom surface of the groove.
【請求項2】 導電板を打ち抜き加工してなる複数のブ
スバーが、絶縁性基板の表面に形成したリブにより画成
される溝部内にそれぞれ収容されて平面的に配索されて
成る電気接続箱のブスバー構造において、 前記リブの幅寸法の短い部分の両側に配置される前記ブ
スバーは、打ち抜き開始面と反対側の面側からエッジ部
にプレス加工が施されていることを特徴とする電気接続
箱のブスバー構造。
2. An electric connection box comprising a plurality of bus bars formed by stamping a conductive plate, each of which is accommodated in a groove defined by a rib formed on the surface of an insulating substrate, and is arranged in a plane. In the bus bar structure, the bus bar disposed on both sides of the short width portion of the rib is subjected to press working on an edge portion from a surface side opposite to a punching start surface. The busbar structure of the box.
JP2000025063A 2000-02-02 2000-02-02 Bus bar structure for electrical connecting box Pending JP2001218336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000025063A JP2001218336A (en) 2000-02-02 2000-02-02 Bus bar structure for electrical connecting box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000025063A JP2001218336A (en) 2000-02-02 2000-02-02 Bus bar structure for electrical connecting box

Publications (1)

Publication Number Publication Date
JP2001218336A true JP2001218336A (en) 2001-08-10

Family

ID=18550971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000025063A Pending JP2001218336A (en) 2000-02-02 2000-02-02 Bus bar structure for electrical connecting box

Country Status (1)

Country Link
JP (1) JP2001218336A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010259139A (en) * 2009-04-21 2010-11-11 Fuji Electric Systems Co Ltd Insulating bus bar and power converter using the same
JP2010267586A (en) * 2009-05-18 2010-11-25 Yazaki Corp Bus bar stored in synthetic resin board section of battery connection plate, and its synthetic resin board section

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010259139A (en) * 2009-04-21 2010-11-11 Fuji Electric Systems Co Ltd Insulating bus bar and power converter using the same
JP2010267586A (en) * 2009-05-18 2010-11-25 Yazaki Corp Bus bar stored in synthetic resin board section of battery connection plate, and its synthetic resin board section

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