JPS60208804A - Resistor having overcurrent breaking function - Google Patents
Resistor having overcurrent breaking functionInfo
- Publication number
- JPS60208804A JPS60208804A JP6518184A JP6518184A JPS60208804A JP S60208804 A JPS60208804 A JP S60208804A JP 6518184 A JP6518184 A JP 6518184A JP 6518184 A JP6518184 A JP 6518184A JP S60208804 A JPS60208804 A JP S60208804A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- bimetal
- resistance wire
- thermal conductivity
- high thermal
- 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
Links
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は抵抗器、特に電力用として用いられる抵抗器に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resistor, particularly a resistor used for power.
電力用の抵抗器において、抵抗器に過電流が流れた場合
などの原因によって、抵抗器に過大な熱損失が生じて、
抵抗器が赤熱し、さらには電気機器から発煙等がおこり
、電気機器が損障するなど重大な問題を引き起す場合が
ある。In power resistors, excessive heat loss may occur in the resistor due to causes such as excessive current flowing through the resistor.
This can cause serious problems such as the resistor becoming red hot and the electrical equipment emitting smoke and damaging the electrical equipment.
このような抵抗器の異常発熱に対して対処するために、
従来の電力用抵抗器においては、温度ヒユーズなどの感
温素子を抵抗器に組み込んだものがほとんどである。こ
こで第１図を参照して、従来の電力用抵抗器の構造につ
いて、説明する。高熱伝導率の細長部材２１には抵抗線
２２が巻かれて、抵抗体２を構成している。抵抗体２の
一端はケース１に支持され、さらにこの一端にはリード
線４が接続されている。抵抗体２の他端はリード線を介
して温度ヒユーズ６に接続され、この温度ヒユーズ３の
一端はケース１に支持されるとともに、リード線４に接
続この抵抗器に過電流が流れて、抵抗体に異常発熱が生
じると、充填物５を介して、温度ヒユーズ３が加熱され
、温度ヒユーズ３が切断し。In order to deal with abnormal heat generation of such resistors,
Most conventional power resistors incorporate a temperature sensing element such as a temperature fuse into the resistor. Here, the structure of a conventional power resistor will be explained with reference to FIG. A resistance wire 22 is wound around an elongated member 21 having high thermal conductivity to constitute a resistor 2. One end of the resistor 2 is supported by the case 1, and a lead wire 4 is further connected to this one end. The other end of the resistor 2 is connected to a temperature fuse 6 via a lead wire, and one end of this temperature fuse 3 is supported by the case 1 and connected to the lead wire 4. When abnormal heat generation occurs in the body, the temperature fuse 3 is heated through the filling 5, and the temperature fuse 3 is disconnected.
抵抗体に流れる電流が遮断される。The current flowing through the resistor is cut off.
ところが、抵抗器に再び電流を流そうとする場合、温度
ヒユーズを入れ替えなければならない。ところがケース
内には充填物が充填されているため、温度ヒユーズの交
替が非常に困難であるという問題点がある。However, if you want current to flow through the resistor again, you must replace the temperature fuse. However, since the case is filled with material, there is a problem in that it is very difficult to replace the temperature fuse.
本発明の目的は、抵抗器の異常発熱によって電流を遮断
するとともに、遮断後自動的に電流を流れるようした抵
抗器を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a resistor that interrupts current when the resistor generates abnormal heat and automatically allows current to flow after the interrupt is interrupted.
本発明によれば、電気絶縁性の高熱伝導率の部材と、該
部属゛に巻線された抵抗線と、該抵抗線と直列に接続さ
れ、開閉接点部を有するバイメタルとを有し、該バイメ
タルは前記高熱伝導率部材に密着して取付けられ、過電
流が前記抵抗線を流れると、該抵抗線の発熱によって前
記パイメダルの開閉接点部を開成するようにしたことを
特徴とする過電流遮断機能を有する抵抗器が得られる。According to the present invention, the present invention includes an electrically insulating member with high thermal conductivity, a resistance wire wound around the member, and a bimetal connected in series with the resistance wire and having an opening/closing contact portion. The overcurrent cutoff is characterized in that the bimetal is attached closely to the high thermal conductivity member, and when an overcurrent flows through the resistance wire, the opening/closing contact portion of the pie medal is opened by the heat generated by the resistance wire. A functional resistor is obtained.
す、下本発明について９図面に示す実施例によって説明
する。The present invention will now be explained with reference to embodiments shown in nine drawings.
素子２６が挿入され、その両端部がケース１によって支
持されている。高熱伝導素子（例えばアルミナなど）２
６には図示のように、高熱伝導素子２３の一端から中央
部付近まで、抵抗線２２が巻かれている。さらにこの抵
抗線２２にはバイメタル部６１が高熱伝導素子２３に密
着して取付けられ、このバイメタル部６１の一端に接触
するようにして、バイメタル部６１と変形率の異なるバ
イメタル部６２が高熱伝導素子２３に密着して取付けら
れ、このバイメタル部６２は高熱伝導素子２６の他端に
接続されている。そしてこのバイメタル部６１と６２に
よって開閉接点部を有するバイメタル６が構成されてい
る。また、抵抗線２２及びバイメタル部６２にはリード
線４が接続され、電流が流れるようじなっている。An element 26 is inserted, and both ends thereof are supported by the case 1. High thermal conductivity element (e.g. alumina, etc.) 2
6, a resistance wire 22 is wound around the high heat conductive element 23 from one end to near the center. Furthermore, a bimetal part 61 is attached to the resistance wire 22 in close contact with the high heat conduction element 23, and in contact with one end of the bimetal part 61, a bimetal part 62 having a different deformation rate from the bimetal part 61 is attached to the high heat conduction element 23. 23, and this bimetal part 62 is connected to the other end of the high thermal conductivity element 26. The bimetal parts 61 and 62 constitute a bimetal 6 having an opening/closing contact part. Further, a lead wire 4 is connected to the resistance wire 22 and the bimetal portion 62, so that a current flows therethrough.
図示の抵抗器に、過電流が流れて、抵抗線２２に異常発
熱がおこると、この熱が高熱伝導素子２３を介して、バ
イメタル乙に伝わる。各バイメタル部６１．６２の温度
に対する変化率はそれぞれ異なっているから、予め定め
られた温度に達するとバイメタル６の接点部が開状態と
なり。When an overcurrent flows through the illustrated resistor and abnormal heat generation occurs in the resistance wire 22, this heat is transmitted to the bimetal B via the high heat conduction element 23. Since each bimetal part 61, 62 has a different rate of change with respect to temperature, when a predetermined temperature is reached, the contact part of the bimetal 6 becomes open.
なる。なお、遮断電流とバイメタルの温度との関係は予
め規定されているものとする。Become. It is assumed that the relationship between the breaking current and the temperature of the bimetal is predetermined.
以上説明したように本発明による抵抗器では過電流を遮
断できるばかりでなく、遮断後自動的に復旧するという
機能を有する。また上述の説明から明らかなように、従
来に比べて構造が簡単である。As explained above, the resistor according to the present invention not only can interrupt overcurrent, but also has the function of automatically restoring the current after interruption. Furthermore, as is clear from the above description, the structure is simpler than the conventional one.
第１図は従来の電力用抵抗器の構造を示す断面図、第２
図は本発明による電力用抵抗器の一実施例を示す断面図
である。
１・・・ケース、２・・・抵抗体、３・・・温度ヒユー
ズ。
４・・・リード線、５・・・充填物、６・・・バイメタ
ル。
代理人（７１２７）弁理士後藤洋介Figure 1 is a sectional view showing the structure of a conventional power resistor;
The figure is a sectional view showing one embodiment of a power resistor according to the present invention. 1...Case, 2...Resistor, 3...Temperature fuse. 4... Lead wire, 5... Filler, 6... Bimetal. Agent (7127) Patent attorney Yosuke Goto
Claims (1)
れた抵抗線と、該抵抗線と直列に接続され、開閉接点部
を有するバイメタルとを有し。 該バイメタルは前記高熱伝導率部材に密着して取付けら
れ、過電流が前記抵抗線を流れると。 該抵抗線の発熱により前記バイメタルの開閉接点部を開
成するようにしたことを特徴とする過電流遮断機能を有
する抵抗器。[Claims] 1. It has an electrically insulating member with high thermal conductivity, a resistance wire wound around the member, and a bimetal connected in series with the resistance wire and having an opening/closing contact portion. The bimetal is attached closely to the high thermal conductivity member, and when an overcurrent flows through the resistance wire. A resistor having an overcurrent cutoff function, characterized in that the bimetal opening/closing contact portion is opened by heat generation of the resistance wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6518184A JPS60208804A (en) | 1984-04-03 | 1984-04-03 | Resistor having overcurrent breaking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6518184A JPS60208804A (en) | 1984-04-03 | 1984-04-03 | Resistor having overcurrent breaking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60208804A true JPS60208804A (en) | 1985-10-21 |
Family
ID=13279482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6518184A Pending JPS60208804A (en) | 1984-04-03 | 1984-04-03 | Resistor having overcurrent breaking function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60208804A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284906U (en) * | 1985-11-18 | 1987-05-30 | ||
| JPS62172108U (en) * | 1986-04-21 | 1987-10-31 | ||
| JPS63159807U (en) * | 1987-04-08 | 1988-10-19 | ||
| JPH01144537A (en) * | 1987-07-28 | 1989-06-06 | Meisho Kk | Heat-sensitive switch element and power type resistor incorporated with this heat-sensitive switch |
| CN105374483A (en) * | 2014-08-19 | 2016-03-02 | 可穆特克浪涌 | Fuse-integrated resistor assembly |
-
1984
- 1984-04-03 JP JP6518184A patent/JPS60208804A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6284906U (en) * | 1985-11-18 | 1987-05-30 | ||
| JPS62172108U (en) * | 1986-04-21 | 1987-10-31 | ||
| JPS63159807U (en) * | 1987-04-08 | 1988-10-19 | ||
| JPH01144537A (en) * | 1987-07-28 | 1989-06-06 | Meisho Kk | Heat-sensitive switch element and power type resistor incorporated with this heat-sensitive switch |
| CN105374483A (en) * | 2014-08-19 | 2016-03-02 | 可穆特克浪涌 | Fuse-integrated resistor assembly |
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