JPH0731486Y2 - Cassette fuse junction box - Google Patents
Cassette fuse junction boxInfo
- Publication number
- JPH0731486Y2 JPH0731486Y2 JP15025089U JP15025089U JPH0731486Y2 JP H0731486 Y2 JPH0731486 Y2 JP H0731486Y2 JP 15025089 U JP15025089 U JP 15025089U JP 15025089 U JP15025089 U JP 15025089U JP H0731486 Y2 JPH0731486 Y2 JP H0731486Y2
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- cassette fuse
- fuse
- peripheral wall
- junction box
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、カセットヒューズを接続したジャンクション
ボックスやリレーボックス等の加熱を防止する構造に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a structure for preventing heating of a junction box, a relay box, or the like to which a cassette fuse is connected.
第４図は、従来のカセットヒューズ接続箱を示す斜視
図、第５図は、同じくカセットヒューズ接続状態を示す
縦断面図（第４図のＣ−Ｃ相当断面）である。FIG. 4 is a perspective view showing a conventional cassette fuse connection box, and FIG. 5 is a vertical sectional view showing a cassette fuse connection state (corresponding section taken along line CC in FIG. 4).
図で、14は、合成樹脂製のカセットヒューズ接続箱、15
は、カセットヒューズを示し、該カセットヒューズ接続
箱14は、接続箱本体16の上壁部17に、カセットヒューズ
15に対するガイド周壁18を貫通して設け、該ガイド周壁
18に底壁19を連成し、該底壁19に、接続用ブスバー20に
連繋した一対の雄タブ端子21を植設して成るものであ
り、該接続用ブスバー20の下方には、ブスバー22を多層
に配設してある。In the figure, 14 is a synthetic resin cassette fuse junction box, and 15
Indicates a cassette fuse, and the cassette fuse connection box 14 is a cassette fuse on the upper wall portion 17 of the connection box body 16.
The guide peripheral wall 18 is provided so as to penetrate the guide peripheral wall 15.
A bottom wall 19 is connected to 18 and a pair of male tab terminals 21 connected to a connecting bus bar 20 is planted in the bottom wall 19, and a bus bar is provided below the connecting bus bar 20. 22 are arranged in multiple layers.
該カセットヒューズ15は、実開昭59-16054号に開示され
たものであり、第６図に分解斜視図を示すように、合成
樹脂製の絶縁ハウジング23の内部に、一対の雌端子24を
収容すると共に、該雌端子24の上端部をヒューズ片25で
連結し、該絶縁ハウジング23にカバー26を覆設して成る
ものであり、該絶縁ハウジング23の底部には、前記雄タ
ブ端子21に対する挿入孔27を設けて、該雌端子24と雄タ
ブ端子21との接続を行うようになっている（第５図参
照）。The cassette fuse 15 is disclosed in Japanese Utility Model Publication No. 59-16054, and as shown in the exploded perspective view of FIG. 6, a pair of female terminals 24 are provided inside an insulating housing 23 made of synthetic resin. It is housed, the upper end of the female terminal 24 is connected by a fuse piece 25, and the insulating housing 23 is covered with a cover 26. The male tab terminal 21 is provided on the bottom of the insulating housing 23. The female terminal 24 and the male tab terminal 21 are connected to each other by providing an insertion hole 27 (see FIG. 5).
しかしながら、上記従来の構造にあっては、カセットヒ
ューズ15とカセットヒューズ接続箱14のガイド周壁18と
の間に隙間がほとんどなく、通常の通電時や過電流が流
れた場合において、下側に配置されたブスバー22等から
の発熱の影響で、カセットヒューズ15が発熱し、その熱
がガイド周壁18内にこもり、カセットヒューズ15内のヒ
ューズ片25の溶断前にガイド周壁18が変形したり、最悪
の場合には溶けたりする可能性があった。また、カセッ
トヒューズ15内に熱がこもって、該カセットヒューズ15
の温度が許容作動温度以上になる可能性もあった。However, in the above-mentioned conventional structure, there is almost no gap between the cassette fuse 15 and the guide peripheral wall 18 of the cassette fuse connection box 14, and it is arranged on the lower side during normal energization or when overcurrent flows. Due to the influence of heat generated from the bus bar 22 etc., the cassette fuse 15 generates heat, the heat is trapped in the guide peripheral wall 18, and the guide peripheral wall 18 is deformed before the fuse piece 25 in the cassette fuse 15 is melted. In the case of, there was a possibility of melting. Further, heat is stored in the cassette fuse 15, and the cassette fuse 15
There is a possibility that the temperature of the above may exceed the allowable operating temperature.
本考案は、上記した点に鑑み、過電流が流れた場合でも
溶けたり変形したりすることがなく、また、ヒューズ片
の温度が許容作動温度以上になるのを防ぐことができる
カセットヒューズ接続箱を提供することを目的とする。In view of the above points, the present invention is a cassette fuse junction box that does not melt or deform even when an overcurrent flows and can prevent the temperature of a fuse piece from exceeding an allowable operating temperature. The purpose is to provide.
上記目的を達成するために、本考案は、接続箱本体に、
カセットヒューズを挿入させるガイド周壁を設け、該ガ
イド周壁に底壁を連成して、接続用キャビティを形成し
たカセットヒューズ接続箱において、前記ガイド周壁に
ガイド周壁長手方向の膨出部を形成し、該膨出部に放熱
孔を穿設して成る構造を基本とする。In order to achieve the above object, the present invention provides a junction box body,
Provided with a guide peripheral wall into which a cassette fuse is inserted, a bottom wall is connected to the guide peripheral wall, and in a cassette fuse connection box having a connection cavity formed, a bulging portion in the guide peripheral wall in the longitudinal direction of the guide peripheral wall is formed, The structure is basically formed by forming a heat radiation hole in the bulging portion.
そして、前記放熱孔を、接続箱本体の外側に位置する前
記膨出部の上設部から内側に位置する該膨出部の下設部
にかけて連通させて成る構造も有効である。A structure in which the heat dissipation holes are communicated from the upper portion of the bulging portion located outside the connection box body to the lower portion of the bulging portion located inside is also effective.
過電流が流れてカセットヒューズが発熱しても、ガイド
周壁の離間された膨出部によって伝熱を抑えると共に、
放熱孔から熱を外部に逃がすから、ガイド周壁の熱変形
等を防止することができる。Even if an overcurrent flows and the cassette fuse heats up, the heat transfer is suppressed by the bulging portions of the guide peripheral wall that are separated,
Since heat is released to the outside from the heat radiation holes, it is possible to prevent thermal deformation of the guide peripheral wall.
また、放熱孔を膨出部の上設部から下設部にかけて連通
させることにより、接続用キャビティの下側に位置する
ブスバー等で発生する熱も該放熱孔を通じて外部に逃が
すことができる。Further, by connecting the heat radiation holes from the upper portion to the lower portion of the bulging portion, the heat generated by the bus bar or the like located below the connection cavity can also be released to the outside through the heat radiation hole.
第１図は、本考案に係るカセットヒューズ接続箱の一実
施例を示す斜視図、第２図は、同じくカセットヒューズ
接続状態を示す縦断面図（第１図のＡ−Ａ相当断面）で
ある。FIG. 1 is a perspective view showing an embodiment of a cassette fuse junction box according to the present invention, and FIG. 2 is a vertical sectional view (corresponding to AA section in FIG. 1) similarly showing a cassette fuse connection state. .
該カセットヒューズ接続箱１は、合成樹脂を材料とし
て、接続箱本体２の上壁部３に対し、カセットヒューズ
４に対するガイド周壁５を貫通して設け、該ガイド周壁
５に底壁６を連成して、接続用キャビティ７を形成し、
該ガイド周壁５に対し、該ガイド周壁５の上端から該底
壁６にかけて、長手方向に膨出部８を形成すると共に、
該膨出部８に対し、上壁部３の上方から前記底壁６側に
かけて連通する放熱用長孔９を穿設して成るものであ
る。The cassette fuse junction box 1 is made of synthetic resin as a material and is provided with an upper wall portion 3 of the junction box main body 2 penetrating a guide peripheral wall 5 for the cassette fuse 4, and a bottom wall 6 is connected to the guide peripheral wall 5. To form the connection cavity 7,
With respect to the guide peripheral wall 5, a bulging portion 8 is formed in the longitudinal direction from the upper end of the guide peripheral wall 5 to the bottom wall 6, and
The bulging portion 8 is formed with a long hole 9 for heat radiation which communicates from above the upper wall portion 3 to the side of the bottom wall 6.
ここで、第３図に第２図のＢ−Ｂ断面図を示すように、
該膨出部８は、カセットヒューズ４を装着した際に、該
カセットヒューズ４の胴部10に形成された縦溝状の肉盗
み部11に対向するように、ガイド周壁５の各壁部の中央
に夫々形成してあり、該膨出部８の内面8cとカセットヒ
ューズ４の肉盗み部11との間隔（隙間）ｈは、カセット
ヒューズ４のヒューズ片12に過大電流が流れてもガイド
周壁５が熱変形温度に達しないように設定してある。Here, as shown in FIG. 3 which is a sectional view taken along line BB of FIG.
The bulging portion 8 of each wall portion of the guide peripheral wall 5 is arranged so as to face the vertical groove-shaped meat steal portion 11 formed on the body portion 10 of the cassette fuse 4 when the cassette fuse 4 is mounted. Each of them is formed in the center, and the space (gap) h between the inner surface 8c of the bulging portion 8 and the meat-thickened portion 11 of the cassette fuse 4 is defined by the guide peripheral wall even if an excessive current flows through the fuse piece 12 of the cassette fuse 4. 5 is set so as not to reach the heat distortion temperature.
また、前記放熱用長孔９は、夫々の膨出部８に対し、上
壁部３より上方に突出した上設部8aと下方に没した下設
部8bとを連通するように設けたものである。Further, the long holes 9 for heat dissipation are provided so as to communicate with the respective bulging portions 8 an upper portion 8a protruding upward from the upper wall portion 3 and a lower portion 8b recessed below. Is.
従って、第２図に示すように、カセットヒューズ４で発
生した熱は、矢印イの如く該放熱用長孔９の上部9aを通
って外部に逃げ、また、接続用キャビティ７の下方に配
置されたブスバー13で発生した熱は、矢印ロの如く該放
熱用長孔９の下部9bから上部9aを通って放熱される。こ
こでブスバー13からの熱流ロは、カセットヒューズ４か
らの熱を奪って外部に放出させる効果もある。Therefore, as shown in FIG. 2, the heat generated in the cassette fuse 4 escapes to the outside through the upper portion 9a of the heat dissipation elongated hole 9 as shown by the arrow B, and is arranged below the connection cavity 7. The heat generated by the bus bar 13 is radiated from the lower portion 9b of the heat dissipation elongated hole 9 through the upper portion 9a as indicated by the arrow B. Here, the heat flow b from the bus bar 13 also has the effect of removing the heat from the cassette fuse 4 and discharging it to the outside.
以上の如くに、本考案によれば、カセットヒューズの熱
を効率的に放熱させることができるから、ガイド周壁の
熱変形や溶解を防止できると共に、カセットヒューズ内
のヒューズ片の温度が許容作動温度以上になるのを防止
できるものである。As described above, according to the present invention, the heat of the cassette fuse can be efficiently dissipated, so that the thermal deformation and melting of the guide peripheral wall can be prevented, and the temperature of the fuse piece in the cassette fuse can be set to the allowable operating temperature. The above can be prevented.
第１図は本考案の一実施例を示す斜視図、 第２図はカセットヒューズを装着した状態を示す、第１
図のＡ−Ａ相当断面図、 第３図は第２図のＢ−Ｂ断面図、 第４図は従来例を示す斜視図、 第５図はカセットヒューズを装着した状態を示す、第４
図のＣ−Ｃ相当断面図、 第６図はカセットヒューズを示す分解斜視図である。 １……カセットヒューズ接続箱、２……接続箱本体、４
……カセットヒューズ、５……ガイド周壁、６……底
壁、７……接続用キャビティ、８……膨出部、8a……上
設部、8b……下設部、９……放熱用長孔、13……ブスバ
ー。FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a state in which a cassette fuse is mounted.
FIG. 4 is a sectional view taken along the line AA of FIG. 3, FIG. 3 is a sectional view taken along the line BB of FIG. 2, FIG. 4 is a perspective view showing a conventional example, and FIG.
FIG. 6 is an exploded perspective view showing a cassette fuse, which is equivalent to a sectional view taken along line CC of FIG. 1 ... Cassette fuse connection box, 2 ... Connection box body, 4
...... Cassette fuse, 5 …… Guide peripheral wall, 6 …… Bottom wall, 7 …… Connecting cavity, 8 …… Bulging part, 8a …… Upper part, 8b …… Under part, 9 …… For heat dissipation Slot, 13 ... Busbar.
Claims (2)
せるガイド周壁を設け、該ガイド周壁に底壁を連成し
て、接続用キャビティを形成したカセットヒューズ接続
箱において、前記ガイド周壁にガイド周壁長手方向の膨
出部を形成し、該膨出部に放熱孔を穿設して成ることを
特徴とするカセットヒューズ接続箱。1. A cassette fuse connection box in which a connection peripheral body is provided with a guide peripheral wall into which a cassette fuse is inserted, and a bottom wall is connected to the guide peripheral wall to form a connection cavity. A cassette fuse junction box characterized in that a bulging portion in the longitudinal direction is formed, and a radiating hole is formed in the bulging portion.
る前記膨出部の上設部から、該接続箱本体の内側に位置
する該膨出部の下設部にかけて連通させて成る請求項
（１）記載のカセットヒューズ接続箱。2. The heat dissipation hole is connected from an upper portion of the bulging portion located outside the connection box body to a lower portion of the bulging portion located inside the connection box body. The cassette fuse junction box according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15025089U JPH0731486Y2 (en) | 1989-12-28 | 1989-12-28 | Cassette fuse junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15025089U JPH0731486Y2 (en) | 1989-12-28 | 1989-12-28 | Cassette fuse junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0391649U JPH0391649U (en) | 1991-09-18 |
| JPH0731486Y2 true JPH0731486Y2 (en) | 1995-07-19 |
Family
ID=31696608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15025089U Expired - Lifetime JPH0731486Y2 (en) | 1989-12-28 | 1989-12-28 | Cassette fuse junction box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731486Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7612646B2 (en) | 2003-04-04 | 2009-11-03 | Yazaki Corporation | Fuse cavity structure and electric connection box |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5187941B2 (en) * | 2008-01-23 | 2013-04-24 | 矢崎総業株式会社 | Electrical junction box |
| JP7139997B2 (en) * | 2019-02-25 | 2022-09-21 | 住友電装株式会社 | electronic module |
-
1989
- 1989-12-28 JP JP15025089U patent/JPH0731486Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7612646B2 (en) | 2003-04-04 | 2009-11-03 | Yazaki Corporation | Fuse cavity structure and electric connection box |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0391649U (en) | 1991-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |