JPH0312190Y2 - - Google Patents
Info
- Publication number
- JPH0312190Y2 JPH0312190Y2 JP20108085U JP20108085U JPH0312190Y2 JP H0312190 Y2 JPH0312190 Y2 JP H0312190Y2 JP 20108085 U JP20108085 U JP 20108085U JP 20108085 U JP20108085 U JP 20108085U JP H0312190 Y2 JPH0312190 Y2 JP H0312190Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- temperature
- resistor
- spring
- movable contact
- 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
- 239000008188 pellet Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 6
- 230000020169 heat generation Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は抵抗体付温度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 temperature fuse with a resistor. .
〈先行技術と問題点〉
回路素子として使用する抵抗体を温度ヒユーズ
の中に組込んだ抵抗体付温度ヒユーズには種々の
形式のものが知られている。<Prior Art and Problems> Various types of temperature fuses with a resistor are known in which a resistor used as a circuit element is incorporated into the temperature fuse.
第２図は公知の抵抗体付きのペレツト型温度ヒ
ユーズを示しており、一端にリード導体を有する
導電性ケース１′内に一端から順次に感温性ペレ
ツト２′、第１スプリング４１′、可動接点材５′、
ケース他端から絶縁ブツシング６′を介して導入
せる固定接点棒７′を収納し、可動接点材５′とブ
ツシング６′との間に第２スプリング４２′を設け
たペレツト型温度ヒユーズにおいて、可動接点材
５′と固定接点棒７′との間に抵抗体R′を介在さ
せてある。 Figure 2 shows a known pellet-type temperature fuse with a resistor, in which a temperature-sensitive pellet 2', a first spring 41', a movable contact material 5',
In a pellet-type temperature fuse, a fixed contact rod 7' introduced from the other end of the case through an insulating bushing 6' is housed, and a second spring 42' is provided between the movable contact member 5' and the bushing 6'. A resistor R' is interposed between the contact member 5' and the fixed contact rod 7'.
しかしながら、この抵抗体付温度ヒユーズにお
いては、抵抗体R′が過電流により発熱しても、
この発熱箇所R′とペレツト２′との間に第１スプ
リング４１′、ケース筒壁等が介在し、その間の
熱抵抗がかなり高いので、抵抗体発生熱をペレツ
トに効率よく伝達させ難く、従つて、抵抗体発熱
によつてペレツトを溶融させて温度ヒユーズを作
動させる機能、つまり、抵抗体の発熱から回路を
保護する機能を効果的に発揮させ難い。 However, in this temperature fuse with a resistor, even if the resistor R′ heats up due to overcurrent,
The first spring 41', the cylindrical wall of the case, etc. are interposed between this heat generating point R' and the pellet 2', and the thermal resistance between them is quite high, making it difficult to efficiently transfer the heat generated by the resistor to the pellet. Therefore, it is difficult to effectively perform the function of melting the pellet by the heat generated by the resistor and operating the temperature fuse, that is, the function of protecting the circuit from the heat generated by the resistor.
〈考案の目的〉
本考案の目的は抵抗体の発熱を感温性ペレツト
に迅速に伝達できて、ヒユーズ作動特性に秀れた
抵抗体付温度ヒユーズを提供することにある。<Purpose of the invention> The purpose of the invention is to provide a temperature fuse with a resistor that can quickly transmit the heat generated by the resistor to the temperature-sensitive pellet and has excellent fuse operating characteristics.
〈考案の構成〉
本考案に係る抵抗体付温度ヒユーズは、一端に
リード導体を有するケース内に一端から順次に感
温性ペレツト、第１スプリング、ケース内面に摺
動可能なように接触せる可動接点材、ケース他端
から絶縁ブツシングを介して導入せる固定接点棒
を収納し、可動接点材とブツシングとの間には第
２スプリングを設けた温度ヒユーズの上記リード
導体と可動接点材までの間のケース部分に所定の
電気抵抗値を付与したことを特徴とする構成であ
る。<Structure of the invention> The temperature fuse with a resistor according to the invention is a movable fuse that is placed in a case having a lead conductor at one end, and sequentially contacts a temperature-sensitive pellet, a first spring, and the inner surface of the case from one end so as to be able to slide. A fixed contact rod introduced from the other end of the case through an insulating bushing is housed, and a second spring is provided between the movable contact material and the bushing, between the lead conductor of the temperature fuse and the movable contact material. This configuration is characterized in that a predetermined electrical resistance value is given to the case portion of the device.
〈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図において、１は絶縁体ケース（セラミツ
クケース）であり、一端にはリード導体１１を接
合してある。２は感温性ペレツトであり、所定の
融点（ヒユーズ作動温度）を有する絶縁性ペレツ
トを圧縮成形したものである。３１は第１均圧
板、４１は第１スプリング、３２は第２均圧板で
ある。５は可動接点材（例えば、銅、アルミ製）
であり、外周をケース内面に摺動可能なように接
触させてある。６はブツシング（例えば、セラミ
ツクス製）、７はブツシングに貫通固定せる固定
接点棒（例えば、銅、アルミ製）であり、ブツシ
ング６をケース１の他端１２に固定し、固定接点
棒７を可動接点材５に接触させてある。８は硬化
性シール剤、４２は可動接点材５とブツシング６
との間に介在させた第２スプリングである。 In FIG. 1, 1 is an insulator case (ceramic case), and a lead conductor 11 is connected to one end. 2 is a temperature-sensitive pellet, which is made by compression molding an insulating pellet having a predetermined melting point (fuse operating temperature). 31 is a first pressure equalizing plate, 41 is a first spring, and 32 is a second pressure equalizing plate. 5 is a movable contact material (for example, made of copper or aluminum)
The outer periphery is in slidable contact with the inner surface of the case. 6 is a bushing (for example, made of ceramics), and 7 is a fixed contact rod (for example, made of copper or aluminum) that is fixed through the bushing.The bushing 6 is fixed to the other end 12 of the case 1, and the fixed contact rod 7 is movable. It is brought into contact with the contact material 5. 8 is a hardening sealant, 42 is a movable contact material 5 and a bushing 6
This is the second spring interposed between.
Ｒはケース内面中、リード導体１１と可動接点
材５までの間のケース内面部分に設けた抵抗層で
あり、抵抗塗料の焼付け、ケース（外筒）への成
形抵抗体（内筒状であり、鉄、ニツケル、クロム
等の単体または合金から成形したもの）の嵌着等
により設けることができる。 R is a resistance layer provided on the inner surface of the case between the lead conductor 11 and the movable contact material 5, and is formed by baking the resistance paint and molding the resistor (inner cylinder shape) into the case (outer cylinder). , iron, nickel, chromium, etc. alone or molded from an alloy).
上記抵抗層Ｒを電気回路の回路素子として用い
る。過電流により抵抗層Ｒが発熱すると、その熱
が感温性ペレツト２に伝わり、このペレツト２が
溶融して第１スプリング４１並びに第２スプリン
グ４２が伸長し、可動接点材５と固定接点棒７と
の間が分離されて、通電が遮断される。而るに、
感温性ペレツト２が発熱体である抵抗層Ｒ内に存
在しているから、抵抗発生熱の感温性ペレツト２
への熱伝達を効率よく行い得る。従つて、抵抗体
発熱後、迅速に回路電流を遮断できるから、抵抗
体Ｒの過大発熱を確実に防止できる。 The above resistance layer R is used as a circuit element of an electric circuit. When the resistance layer R generates heat due to an overcurrent, the heat is transferred to the temperature-sensitive pellet 2, which melts and expands the first spring 41 and the second spring 42, and the movable contact member 5 and the fixed contact rod 7 The connection between the two is separated and the current is cut off. However,
Since the temperature-sensitive pellet 2 exists in the resistance layer R which is a heating element, the temperature-sensitive pellet 2 generates resistance heat.
It is possible to efficiently transfer heat to. Therefore, since the circuit current can be quickly cut off after the resistor R generates heat, excessive heat generation of the resistor R can be reliably prevented.
上記において、抵抗層をケースの全内面に設け
てもよく、ケース自体を抵抗材料で成形して抵抗
層を省略することもできる。 In the above, the resistance layer may be provided on the entire inner surface of the case, or the case itself may be molded from a resistance material and the resistance layer may be omitted.
〈考案の効果〉
本考案に係る抵抗体付温度ヒユーズは、上述し
た通り、ペレツト型温度ヒユーズのケースに所定
の抵抗値を付与して、これを回路抵抗として使用
するものであり、抵抗発熱を感温性ペレツトに迅
速に伝達できるから、抵抗発熱後、迅速にヒユー
ズを作動させることができ、回路を回路抵抗素子
の異常発熱から効果的に保護できる。<Effects of the invention> As mentioned above, the thermal fuse with a resistor according to the invention is a pellet-type thermal fuse whose case is given a predetermined resistance value and used as a circuit resistance, thereby eliminating resistance heat generation. Since the temperature can be quickly transmitted to the temperature-sensitive pellet, the fuse can be activated quickly after the resistance heats up, and the circuit can be effectively protected from abnormal heat generation in the circuit resistance element.
第１図は本考案に係る抵抗体付温度ヒユーズを
示す説明図、第２図は従来の抵抗体付温度ヒユー
ズを示す説明図である。
図において、１は通電性ケース、２は感温ペレ
ツト、４１は第１スプリング、４２は第２スプリ
ング、５は可動接点材、６はブツシング、７は固
定接点棒、Ｒは抵抗層である。
FIG. 1 is an explanatory diagram showing a temperature fuse with a resistor according to the present invention, and FIG. 2 is an explanatory diagram showing a conventional temperature fuse with a resistor. In the figure, 1 is a conductive case, 2 is a temperature-sensitive pellet, 41 is a first spring, 42 is a second spring, 5 is a movable contact material, 6 is a bushing, 7 is a fixed contact rod, and R is a resistance layer.
Claims (1)
順次に感温性ペレツト、第１スプリング、ケース
内面に摺動可能なように接触せる可動接点材、ケ
ース他端から絶縁ブツシングを介して導入せる固
定接点棒を収納し、可動接点材とブツシングとの
間には第２スプリングを設けた温度ヒユーズの上
記リード導体と可動接点材までの間のケース部分
に所定の電気抵抗値を付与したことを特徴とする
抵抗体付温度ヒユーズ。 A temperature-sensitive pellet, a first spring, a movable contact member that is slidably in contact with the inner surface of the case, and a fixed contact that is introduced from the other end of the case through an insulating bushing are placed in a case that has a lead conductor at one end. A predetermined electrical resistance value is imparted to the case portion between the lead conductor of the temperature fuse and the movable contact material, in which the rod is housed, and a second spring is provided between the movable contact material and the bushing. Temperature fuse with resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20108085U JPH0312190Y2 (en) | 1985-12-25 | 1985-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20108085U JPH0312190Y2 (en) | 1985-12-25 | 1985-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62107336U JPS62107336U (en) | 1987-07-09 |
| JPH0312190Y2 true JPH0312190Y2 (en) | 1991-03-22 |
Family
ID=31164196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20108085U Expired JPH0312190Y2 (en) | 1985-12-25 | 1985-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0312190Y2 (en) |
-
1985
- 1985-12-25 JP JP20108085U patent/JPH0312190Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62107336U (en) | 1987-07-09 |
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