JPH0141145Y2 - - Google Patents
Info
- Publication number
- JPH0141145Y2 JPH0141145Y2 JP13350385U JP13350385U JPH0141145Y2 JP H0141145 Y2 JPH0141145 Y2 JP H0141145Y2 JP 13350385 U JP13350385 U JP 13350385U JP 13350385 U JP13350385 U JP 13350385U JP H0141145 Y2 JPH0141145 Y2 JP H0141145Y2
- Authority
- JP
- Japan
- Prior art keywords
- conductive
- resistor
- fuse
- movable body
- fusible body
- 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
Links
- 239000000758 substrate Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
Landscapes
- Thermally Actuated Switches (AREA)
- Fuses (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は抵抗体付きヒユーズの改良に関するも
のである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an improvement of a fuse with a resistor.
〈先行技術と問題点〉
近来、低抗体付きヒユーズが種々提案されてお
り、その基本的構成は電気抵抗体と導電性可溶体
とを近接配設して所定の過電流下での電気抵抗体
の発生熱により導電性可溶体を溶断させることに
ある。而して、電気抵抗体の発生熱Ｑによる導電
性可溶体の温度上昇ΔTがｆ（ΔT）＝Ｑで与えら
れるとすれば、遮断すべき過電流Ｉ、導電性可溶
体の融点Ｍ、並びに電気抵抗体の抵抗値Ｒとの間
には、
１／ＪRI2＝ｆ（Ｍ−T0）−
の関係が与えられる（ただしT0は常温）。<Prior art and problems> Recently, various types of fuses with low antibody have been proposed.The basic structure thereof is to arrange an electrical resistor and a conductive fusible material in close proximity to each other, so that the electrical resistor can function under a specified overcurrent. The purpose is to fuse the conductive fusible material with the generated heat. Therefore, if the temperature rise ΔT of the conductive fusible body due to the heat Q generated by the electric resistor is given by f(ΔT)=Q, then the overcurrent I to be interrupted, the melting point M of the conductive fusible body, and The following relationship is given to the resistance value R of the electric resistor: 1/JRI 2 =f(M-T 0 )- (T 0 is room temperature).
上記から明らかなように、遮断電流Ｉに応じて
電気抵抗体の抵抗値Ｒを変える必要があるが、従
来の抵抗体付きヒユーズにおいては、遮断電流値
Ｉに応じて多種類のものを用意する必要があり、
製作上、保管上不利である。 As is clear from the above, it is necessary to change the resistance value R of the electrical resistor according to the breaking current I, but in conventional fuses with resistors, many types are prepared depending on the breaking current value I. There is a need,
It is disadvantageous in terms of production and storage.
〈考案の目的〉
本考案の目的は共通の抵抗体付きヒユーズで広
範囲の遮断電流に対処し得るようにすることにあ
る。<Purpose of the invention> The purpose of the invention is to enable a fuse with a common resistor to handle a wide range of breaking currents.
〈考案の構成〉
本考案に係る抵抗体付きヒユーズは、電気抵抗
体と導電性可溶体とを近接配設して所定の過電流
下での電気抵抗体の発生熱により導電性可溶体を
溶断せるヒユーズにおいて電気抵抗体と導電性可
溶体とを直列接続の状態で絶縁基板上に設け、電
気抵抗体の中間に摺動接触する導電性可動体を設
け、端子用電極を導電性可動体並びに導電性可溶
体にそれぞれ設けたことを特徴とする構成であ
る。<Structure of the device> The fuse with a resistor according to the present invention has an electric resistor and a conductive fusible body arranged in close proximity, and the conductive fusible body is fused by the heat generated by the electric resistor under a predetermined overcurrent. In a fuse, an electric resistor and a conductive fusible body are connected in series on an insulating substrate, a conductive movable body is provided in the middle of the electric resistor in sliding contact, and a terminal electrode is connected to the conductive movable body and the conductive movable body. This structure is characterized by being provided in each conductive soluble body.
〈実施例の説明〉 以下、図面により本考案を説明する。<Explanation of Examples> The present invention will be explained below with reference to the drawings.
第１図は本考案に係る抵抗体付きヒユーズを示
す上面図、２は第１図における−断面図であ
る。 FIG. 1 is a top view showing a fuse with a resistor according to the present invention, and 2 is a cross-sectional view taken in FIG.
図において、１は絶縁基板であり、セラミツク
スや耐熱性樹脂から成形することができる。２は
絶縁基板１上に設けた円弧状の電気抵抗体であ
り、金属酸化物やカーボンを用いることができ
る。３は導電性可溶体、例えばSn−Pb系合金で
あり、上記電気抵抗体２に直列に接触した状態で
絶縁基板１上に設けてある。４は導電性可動体で
あり、その一端４１をピン５により回転可能なよ
うに基板１上に支持し、他端４２を電気抵抗体２
に摺動可能なように接触させてある。６１は導電
性可溶体３の一端に設けた端子用電極、６２は導
電性可動体４の一端４１に設けた端子用電極であ
る。７，７はリード導体である。８は導電性可動
体４に対するストツパーである。９は絶縁カバー
であり、絶縁基板１に取外し自在に装着してあ
る。 In the figure, 1 is an insulating substrate, which can be molded from ceramics or heat-resistant resin. Reference numeral 2 denotes an arc-shaped electric resistor provided on the insulating substrate 1, and metal oxide or carbon can be used for the electric resistor. Reference numeral 3 denotes a conductive fusible material, such as a Sn--Pb alloy, which is provided on the insulating substrate 1 in series contact with the electrical resistor 2 . 4 is a conductive movable body, one end 41 of which is rotatably supported on the substrate 1 by a pin 5, and the other end 42 of which is supported by an electric resistor 2.
It is slidably in contact with the. 61 is a terminal electrode provided at one end of the conductive fusible body 3, and 62 is a terminal electrode provided at one end 41 of the conductive movable body 4. 7, 7 are lead conductors. 8 is a stopper for the conductive movable body 4. Reference numeral 9 denotes an insulating cover, which is detachably attached to the insulating substrate 1.
上記において、導電性可溶体３の融点をＭ、遮
断すべき電流をＩとすれば、前記式に基づき導
電性可動体４と導電性可溶体３との間の抵抗体部
分に次式で示す抵抗値Ｒ
Ｒ＝１／JI2・ｆ（Ｍ−T0）−
を付与すればよく、この抵抗値Ｒは導電性可動体
４の摺動調節により簡単に行い得る。 In the above, if the melting point of the conductive fusible body 3 is M, and the current to be interrupted is I, then the resistor portion between the conductive movable body 4 and the conductive fusible body 3 is expressed by the following formula based on the above formula. It is sufficient to provide a resistance value R R=1/JI 2 ·f(M-T 0 )-, and this resistance value R can be easily adjusted by sliding adjustment of the conductive movable body 4.
〈考案の効果〉
而して、本考案に係る抵抗体付きヒユーズにお
いては、電気抵抗体の抵抗値の容易な調整により
広範囲の遮断電流値を設定できる。従つて、遮断
電流値との関係から多種類の抵抗体付きヒユーズ
を用意することが不要であり、抵抗体付きヒユー
ズの製作、保管上等において有利である。<Effects of the Invention> Thus, in the fuse with a resistor according to the present invention, a wide range of breaking current values can be set by easily adjusting the resistance value of the electric resistor. Therefore, it is not necessary to prepare many types of fuses with resistors in view of the breaking current value, which is advantageous in manufacturing and storing fuses with resistors.
第１図は本考案に係る抵抗体付きヒユーズを示
す説明図、第２図は第１図における−断面図
である。
図において、１は絶縁基板、２は電気抵抗体、
３は導電性可溶体、４は導電性可動体、６１，６
２は端子用電極である。
FIG. 1 is an explanatory diagram showing a fuse with a resistor according to the present invention, and FIG. 2 is a cross-sectional view taken from FIG. 1. In the figure, 1 is an insulating substrate, 2 is an electric resistor,
3 is a conductive soluble body, 4 is a conductive movable body, 61, 6
2 is a terminal electrode.
Claims (1)
定の過電流下での電気抵抗体の発生熱により導電
性可溶体を溶断せるヒユーズにおいて、電気抵抗
体と導電性可溶体とを直列接続の状態で絶縁基部
上に設け、電気抵抗体の中間に摺動接触する導電
性可動体を設け、端子用電極を導電性可動体並び
に導電性可溶体にそれぞれ設けたことを特徴とす
る抵抗体付きヒユーズ。 In a fuse where an electrical resistor and a conductive fusible body are arranged close to each other and the conductive fusible body can be blown by the heat generated by the electrical resistor under a predetermined overcurrent, the electric resistor and the conductive fusible body are connected in series. A resistor characterized in that it is provided on an insulating base in a connected state, a conductive movable body is provided in sliding contact between the electric resistors, and terminal electrodes are provided on each of the conductive movable body and the conductive fusible body. Fuse with body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13350385U JPH0141145Y2 (en) | 1985-08-30 | 1985-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13350385U JPH0141145Y2 (en) | 1985-08-30 | 1985-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6241644U JPS6241644U (en) | 1987-03-12 |
| JPH0141145Y2 true JPH0141145Y2 (en) | 1989-12-06 |
Family
ID=31033883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13350385U Expired JPH0141145Y2 (en) | 1985-08-30 | 1985-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0141145Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4573865B2 (en) * | 2007-12-11 | 2010-11-04 | エヌイーシー ショット コンポーネンツ株式会社 | Protective device using temperature fuse |
-
1985
- 1985-08-30 JP JP13350385U patent/JPH0141145Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6241644U (en) | 1987-03-12 |
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