JPH10313522A - Waterproof structure for electric joint box is automobile - Google Patents

Waterproof structure for electric joint box is automobile

Info

Publication number
JPH10313522A
JPH10313522A JP9117215A JP11721597A JPH10313522A JP H10313522 A JPH10313522 A JP H10313522A JP 9117215 A JP9117215 A JP 9117215A JP 11721597 A JP11721597 A JP 11721597A JP H10313522 A JPH10313522 A JP H10313522A
Authority
JP
Japan
Prior art keywords
bracket
case
peripheral wall
water
lower case
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.)
Withdrawn
Application number
JP9117215A
Other languages
Japanese (ja)
Inventor
Masayoshi Nakamura
昌芳 中村
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.)
Sumitomo Wiring Systems Ltd
Original Assignee
Sumitomo Wiring Systems Ltd
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 Sumitomo Wiring Systems Ltd filed Critical Sumitomo Wiring Systems Ltd
Priority to JP9117215A priority Critical patent/JPH10313522A/en
Publication of JPH10313522A publication Critical patent/JPH10313522A/en
Withdrawn legal-status Critical Current

Links

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  • Connection Or Junction Boxes (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent intrusion of water into a case through a gap between the circumferential wall of upper and lower cases by making a plurality of through holes vertically through a bracket in order to drop water splashing the bracket. SOLUTION: A rectangular bracket 4 projects from the lower part of the circumferential wall 1a of the lower case 1 located below the circumferential wall 2a of the upper case 2 of an electric joint box and tour vertical through holes 6 are made through the bracket 4 around a fixing hole 5. When the inside of an engine room is cleaned with steam, cleaning water 7 strikes against the upper surface of the bracket 4 violently from above and drops through the through holes 6 without splashing upward. According to the structure, splashing is suppressed and the water can be prevented from intruding into the case through a gap between the circumferential wail of the upper and lower cases. Consequently, corrosion is prevented and adverse effect of insufficient contact of electric circuit can be eliminated.

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】本発明は自動車のエンジンル
ームに搭載する電気接続箱の防水構造に関し、特にロア
ケースの周壁とアッパケースの周壁との隙間からケース
内部に水が侵入するのを防止するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure for an electric junction box mounted in an engine room of an automobile, and more particularly to a structure for preventing water from entering a case through a gap between a peripheral wall of a lower case and a peripheral wall of an upper case. It is.

【0002】[0002]

【従来の技術】自動車のエンジンルームに搭載する電気
接続箱は、図3に示すように、ロアケース30の周壁3
0aの上部の外側にアッパケース31の周壁31aの下
部を被せて組みつけ、ロアケース30の周壁30aに突
設したロック爪(図示せず)とアッパケース31の周壁
31aに突設したロック溝(図示せず)とを係止してロ
ックしている。これらロアケース30とアッパーケース
31とから構成するケース内部にはヒューズ,リレー等
の電気部品33や所定の回路パターンを有するバスバー
(図示せず)を収容している。
2. Description of the Related Art As shown in FIG. 3, an electric junction box mounted in an engine room of an automobile has a peripheral wall 3 of a lower case 30.
A lower part of the peripheral wall 31a of the upper case 31 is put on the outer side of the upper part of the upper case 31 and assembled, and a lock claw (not shown) protruding from the peripheral wall 30a of the lower case 30 and a lock groove (not shown) protruding from the peripheral wall 31a of the upper case 31. (Not shown). Inside the case composed of the lower case 30 and the upper case 31, an electric component 33 such as a fuse and a relay and a bus bar (not shown) having a predetermined circuit pattern are accommodated.

【0003】上記ロアケース30の周壁30aには、ア
ッパーケース31との嵌合部の下方からブラケット34
を突設させ、該ブラケット34に設けた取付穴35にボ
ルト37を通して、ボデーあるいは他の電気接続箱から
なる被固定部材36に固定して、エンジンルームの所定
箇所に取り付けている。
[0003] A bracket 34 is attached to the peripheral wall 30a of the lower case 30 from below the fitting portion with the upper case 31.
And a bolt 37 is passed through a mounting hole 35 provided in the bracket 34, and is fixed to a fixed member 36 formed of a body or another electric connection box, and attached to a predetermined portion of an engine room.

【0004】上記のようにロアケース30の周壁30a
にアッパケース31の周壁31aを外嵌することで、雨
水等がエンジンルーム内に水が侵入してアッパケース3
1に水がかかっても、該水をケース内部に侵入させるこ
となく、アッパケース31の周壁31aから下方に水を
落下させることができる。
As described above, the peripheral wall 30a of the lower case 30
When the peripheral wall 31a of the upper case 31 is fitted to the outside, rainwater or the like enters the engine room and water enters the engine case.
Even if water is applied to the case 1, water can be allowed to fall downward from the peripheral wall 31a of the upper case 31 without allowing the water to enter the inside of the case.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上記電
気接続箱では、ロアケース30の周壁30aとアッパケ
ース31の周壁31aとの隙間Cの下部に位置するブラ
ケット34からの反射水が上記隙間Cを通してケース内
部に浸水し、上記電気部品33や上記バスバーを腐食さ
せ、電気回路に接触不良等の悪影響を与えるという問題
があった。
However, in the electric junction box, the reflected water from the bracket 34 located below the gap C between the peripheral wall 30a of the lower case 30 and the peripheral wall 31a of the upper case 31 passes through the gap C. There is a problem that water is immersed in the inside and corrodes the electric component 33 and the bus bar, thereby adversely affecting the electric circuit such as poor contact.

【0006】即ち、例えば、洗車時に、スチーム(高圧
洗浄水)でエンジンルーム内を洗浄する場合、ブラケッ
ト34に上方から激しく洗浄水36が当たる。このよう
な場合、洗浄水36がブラケット34の上面で勢い良く
上方に跳ね返ってロアケース30の周壁30aとアッパ
ケース31の周壁31aとの隙間Cからケース内部に侵
入する場合がある。
That is, for example, when washing the interior of the engine room with steam (high-pressure washing water) at the time of car washing, the washing water 36 hits the bracket 34 from above intensely. In such a case, the cleaning water 36 may bounce vigorously upward on the upper surface of the bracket 34 and enter the inside of the case through the gap C between the peripheral wall 30a of the lower case 30 and the peripheral wall 31a of the upper case 31.

【0007】本発明は、上記問題点に鑑み、簡単な構成
で、ロアケースの周壁とアッパケースの周壁との隙間か
らケース内部に水が侵入するのを防止することをを課題
としている。
SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to prevent water from entering the inside of a case with a simple configuration through a gap between a peripheral wall of a lower case and a peripheral wall of an upper case.

【0008】[0008]

【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、請求項 1で、ロアケースの周壁にアッ
パーケースの周壁を外嵌して組みつけると共に、上記ロ
アケースから突設したブラケットを用いて、自動車のエ
ンジンルームにおいて被固定部に固定する電気接続箱で
あって、上記ブラケットに複数の上下方向の貫通穴を設
け、ブラケットにかかる水が貫通穴を通して落下する構
成としている自動車用電気接続箱の防水構造を提供して
いる。
Means for Solving the Problems To solve the above problems, according to the present invention, a peripheral wall of an upper case is externally fitted to a peripheral wall of a lower case and assembled, and a bracket protruding from the lower case is provided. An electric connection box for fixing to a fixed portion in an engine room of an automobile, wherein the bracket is provided with a plurality of vertical through holes, and water applied to the bracket drops through the through holes. Offers waterproof structure for junction box.

【0009】上記構成とすると、ブラケットに複数の上
下方向の貫通穴を設けたので、上方からブラケットに当
たった水は上方に跳ねることがなく、上記貫通穴を通っ
て下方に落下する。したがって、上記ブラケットの上方
に位置するロアケースの周壁とアッパケースの周壁との
隙間に水が侵入するのをなくすことができる。かつ、大
きな貫通孔を1つ設けると、ブラケットの強度が低下す
るが、小孔を複数個設けているため、ブラケットの強度
を低下させない。
In the above configuration, since a plurality of vertical through holes are provided in the bracket, the water hitting the bracket from above does not splash upward but falls downward through the through holes. Therefore, it is possible to prevent water from entering the gap between the peripheral wall of the lower case and the peripheral wall of the upper case located above the bracket. In addition, if one large through hole is provided, the strength of the bracket is reduced. However, since a plurality of small holes are provided, the strength of the bracket is not reduced.

【0010】また、本発明は、請求項2で、ロアケース
の周壁にアッパーケースの周壁を外嵌して組みつけると
共に、上記ロアケースから突設したブラケットを用い
て、自動車のエンジンルームにおいて被固定部に固定す
る電気接続箱であって、上記ブラケットにU字状の屈曲
部を設けて、ブラケットにかかる水を上記屈曲部に溜め
て両端から落下させる構成としている自動車用電気接続
箱の防水構造を提供している。なお、上記屈曲部はロア
ケース側の基部近くに設けることが好ましい。
According to a second aspect of the present invention, a fixed portion is fixed to an engine room of an automobile by using a bracket protruding from the lower case, wherein the peripheral wall of the upper case is externally fitted to the lower case. A waterproof structure for an electric junction box for automobiles, wherein a U-shaped bent portion is provided in the bracket, and water applied to the bracket is collected in the bent portion and dropped from both ends. providing. The bent portion is preferably provided near the base on the lower case side.

【0011】上記構成とすると、ブラケットに設けたU
字状に屈曲部で、上方からブラケットに当たった水は屈
曲部内で跳ねることとなるが、ロアケースの周壁とアッ
パケースの周壁との隙間まで上記水は跳ね上がることを
防止すると共に、屈曲部に水を溜めて、両端から溜めた
水を落下させることができる。
With the above structure, the U provided on the bracket
The water that hits the bracket from above at the bent portion in the shape of a letter will bounce inside the bent portion, but while preventing the water from jumping up to the gap between the peripheral wall of the lower case and the peripheral wall of the upper case, And the accumulated water can be dropped from both ends.

【0012】[0012]

【発明の実施の形態】以下、本発明の実施形態を図面を
参照して説明する。図1は本発明の第1実施形態を示
し、ロアケース1の周壁1aの上部外側にアッパケース
2の周壁2aの下部を被せ、ロアケース1の周壁1aに
突設したロック爪(図示せず)とアッパケース2の周壁
2aに突設したロック溝(図示せず)とを係止してロッ
クしている。ケース内部にはヒューズ,リレー等の電気
部品3や所定の回路パターンを有するバスバー(図示せ
ず)を収容している。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention, in which a lower part of a peripheral wall 2a of an upper case 2 is placed on the upper outer side of a peripheral wall 1a of a lower case 1 and a locking claw (not shown) protrudingly provided on the peripheral wall 1a of the lower case 1. A lock groove (not shown) protruding from the peripheral wall 2a of the upper case 2 is locked and locked. Inside the case, electric parts 3 such as fuses and relays, and bus bars (not shown) having a predetermined circuit pattern are accommodated.

【0013】上記アッパーケース2の周壁2aの下方に
位置するロアケース1の周壁1a下部には、長方形状の
ブラケット4を突設させている。該ブラケット4には、
中央の被固定部材への取付穴5を設けて、ボルト(図示
せず)を通してナットにより被固定部材へ固定するよう
にしている。
A rectangular bracket 4 protrudes from a lower portion of the peripheral wall 1a of the lower case 1 located below the peripheral wall 2a of the upper case 2. The bracket 4 includes
A mounting hole 5 for the central fixed member is provided, and is fixed to the fixed member by a nut through a bolt (not shown).

【0014】上記ブラケット4には、取付孔5を囲むよ
うに、4つの上下貫通穴6を設けている。
The bracket 4 has four upper and lower through holes 6 surrounding the mounting hole 5.

【0015】上記電気接続箱は、自動車搭載時には、ブ
ラケット4の取付穴5を用いてボルトを通して、ナット
で締めつけることにより被固定部材に固定してエンジン
ルーム内の所定箇所に取り付けられる。
When the electric connection box is mounted on an automobile, the electric connection box is fixed to a member to be fixed by passing it through a bolt using the mounting hole 5 of the bracket 4 and tightening with a nut, and is mounted at a predetermined position in an engine room.

【0016】上記した構成としていることにより、例え
ばスチーム(高圧洗浄水)でエンジンルーム内を洗浄す
る場合に、ブラケット4の上面に激しく上方から洗浄水
が当たることとなるが、ブラケット4に当たった水7は
上方に跳ねることがなく、貫通穴6を通って下方に落下
する。したがって、ブラケット4の上方に位置するロア
ケース1の周壁1aとアッパケース2の周壁2aとの隙
間Cに水7が侵入することを防止できる。
With the above-described structure, for example, when the inside of the engine room is washed with steam (high-pressure washing water), the washing water hits the upper surface of the bracket 4 violently from above. The water 7 does not splash upward, but falls downward through the through hole 6. Therefore, water 7 can be prevented from entering the gap C between the peripheral wall 1a of the lower case 1 and the peripheral wall 2a of the upper case 2 located above the bracket 4.

【0017】図2は本発明の第2実施形態を示し、第1
実施形態と異なる点は、ブラケット8に貫通穴を設ける
ことなく、U字状に屈曲させた屈曲部9を設けた点にあ
り、第1実施形態と同一部分には同符号を付している。
FIG. 2 shows a second embodiment of the present invention.
The difference from the first embodiment is that the bracket 8 is provided with a bent portion 9 bent in a U-shape without providing a through hole, and the same parts as those in the first embodiment are denoted by the same reference numerals. .

【0018】ブラケット8はロアケース1の周壁1a下
部から突設させており、ロアケース1の近傍をU字状に
下方に屈曲させてた屈曲部9を設けている。この屈曲部
9はロアケース1の周壁1aとアッパケース2の周壁2
aとの隙間の下方に位置させている。また、屈曲部9よ
り先端側に被固定部材の取付穴5を設けている。
The bracket 8 projects from the lower portion of the peripheral wall 1a of the lower case 1 and has a bent portion 9 formed by bending the vicinity of the lower case 1 downward in a U-shape. The bent portion 9 is composed of the peripheral wall 1a of the lower case 1 and the peripheral wall 2 of the upper case 2.
a below the gap. Further, a mounting hole 5 for the fixed member is provided on the distal end side from the bent portion 9.

【0019】上記電気接続箱では、上方からブラケット
8に当たった水はU字状の屈曲部9内に溜まり、平板状
の場合と比較して上方への跳ね返りを減少でき、上記隙
間Cまで跳ねあがらず、ケース内部への侵入を防止でき
る。また、屈曲部9に溜まった水は両端より下方に落下
する。
In the electric junction box, the water that has hit the bracket 8 from above accumulates in the U-shaped bent portion 9 and can reduce the upward rebound as compared with the case of a flat plate, and bounce to the gap C. It can be prevented from entering the inside of the case. Further, the water accumulated in the bent portion 9 falls downward from both ends.

【0020】[0020]

【発明の効果】以上の説明より明らかなように、本発明
の電気接続箱によれば、上方からブラケットに当たった
水を、ブラケットに設けた複数の上下方向の貫通穴によ
り下方に落下させる、あるいはロアケース近傍の上記ブ
ラケットをU字状に屈曲させて形成した屈曲部内に溜め
ることにより跳ね返りを減少して、ロアケース周壁とア
ッパケースの周壁との隙間からケース内部に水が侵入す
ることを防止できる。
As is apparent from the above description, according to the electric junction box of the present invention, water hitting the bracket from above is dropped downward by the plurality of vertical through holes provided in the bracket. Alternatively, the bracket near the lower case is bent in a U-shape and stored in a bent portion to reduce rebound and prevent water from entering the inside of the case from a gap between the lower case peripheral wall and the upper case peripheral wall. .

【0021】その結果、簡単な構成で、従来発生してい
たブラケットで跳ね返った水がケース内部へ浸水して電
気部品やバスバーに腐食を発生することを防止でき、電
気回路の接触不良等の悪影響をなくすことができる。
As a result, with a simple configuration, it is possible to prevent water splashed by the bracket, which has been generated in the past, from infiltrating into the inside of the case and thereby causing corrosion of electric parts and bus bars, and adverse effects such as poor contact of electric circuits. Can be eliminated.

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

【図1】 本発明の第1実施形態を示し、(A)は要部
断面図、(B)は要部斜視図である。
1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a sectional view of a main part, and FIG. 1B is a perspective view of a main part.

【図2】 本発明の第2実施形態を示す要部断面図であ
る。
FIG. 2 is a sectional view showing a main part of a second embodiment of the present invention.

【図3】 従来例を示し、(A)は要部断面図、(B)
は要部斜視図である。
3A and 3B show a conventional example, in which FIG.
FIG.

【符号の説明】[Explanation of symbols]

1 ロアケース 1a 周壁 2 アッパケース 2a 周壁 4、8 ブラケット 6 貫通穴 9 屈曲部 DESCRIPTION OF SYMBOLS 1 Lower case 1a Peripheral wall 2 Upper case 2a Peripheral wall 4, 8 Bracket 6 Through hole 9 Bending part

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ロアケースの周壁にアッパーケースの周
壁を外嵌して組みつけると共に、上記ロアケースから突
設したブラケットを用いて、自動車のエンジンルームに
おいて被固定部に固定する電気接続箱であって、 上記ブラケットに複数の上下方向の貫通穴を設け、ブラ
ケットにかかる水が貫通穴を通して落下する構成として
いる自動車用電気接続箱の防水構造。
1. An electric connection box, wherein a peripheral wall of an upper case is externally fitted to a peripheral wall of a lower case and assembled to the peripheral case, and is fixed to a fixed portion in an engine room of an automobile using a bracket protruding from the lower case. A waterproof structure for an electric junction box for automobiles, wherein a plurality of vertical through holes are provided in the bracket, and water applied to the bracket falls through the through holes.
【請求項2】 ロアケースの周壁にアッパーケースの周
壁を外嵌して組みつけると共に、上記ロアケースから突
設したブラケットを用いて、自動車のエンジンルームに
おいて被固定部に固定する電気接続箱であって、 上記ブラケットにU字状の屈曲部を設けて、ブラケット
にかかる水を上記屈曲部に溜めて両端から落下させる構
成としている自動車用電気接続箱の防水構造。
2. An electric connection box, wherein a peripheral wall of an upper case is externally fitted to a peripheral wall of a lower case and assembled, and is fixed to a fixed portion in an engine room of an automobile using a bracket protruding from the lower case. A waterproof structure for an electric connection box for automobiles, wherein a U-shaped bent portion is provided on the bracket, and water applied to the bracket is collected in the bent portion and dropped from both ends.
JP9117215A 1997-05-07 1997-05-07 Waterproof structure for electric joint box is automobile Withdrawn JPH10313522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9117215A JPH10313522A (en) 1997-05-07 1997-05-07 Waterproof structure for electric joint box is automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9117215A JPH10313522A (en) 1997-05-07 1997-05-07 Waterproof structure for electric joint box is automobile

Publications (1)

Publication Number Publication Date
JPH10313522A true JPH10313522A (en) 1998-11-24

Family

ID=14706252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9117215A Withdrawn JPH10313522A (en) 1997-05-07 1997-05-07 Waterproof structure for electric joint box is automobile

Country Status (1)

Country Link
JP (1) JPH10313522A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003319530A (en) * 2002-04-23 2003-11-07 Yazaki Corp Electric junction box
JP2011147327A (en) * 2009-12-14 2011-07-28 Yazaki Corp Electrical junction box
JP2011152846A (en) * 2010-01-27 2011-08-11 Suzuki Motor Corp Flooding preventive structure of electric equipment part
JP2013158182A (en) * 2012-01-31 2013-08-15 Imasen Electric Ind Co Ltd Waterproof structure of electronic unit
JP2014108038A (en) * 2012-11-30 2014-06-09 Yazaki Corp Case
JP2019068562A (en) * 2017-09-29 2019-04-25 矢崎総業株式会社 Electric connection box and wire harness

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003319530A (en) * 2002-04-23 2003-11-07 Yazaki Corp Electric junction box
JP2011147327A (en) * 2009-12-14 2011-07-28 Yazaki Corp Electrical junction box
JP2011152846A (en) * 2010-01-27 2011-08-11 Suzuki Motor Corp Flooding preventive structure of electric equipment part
JP2013158182A (en) * 2012-01-31 2013-08-15 Imasen Electric Ind Co Ltd Waterproof structure of electronic unit
JP2014108038A (en) * 2012-11-30 2014-06-09 Yazaki Corp Case
JP2019068562A (en) * 2017-09-29 2019-04-25 矢崎総業株式会社 Electric connection box and wire harness

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