JPS61110401A - Covered winding resistor for power - Google Patents
Covered winding resistor for powerInfo
- Publication number
- JPS61110401A JPS61110401A JP23128684A JP23128684A JPS61110401A JP S61110401 A JPS61110401 A JP S61110401A JP 23128684 A JP23128684 A JP 23128684A JP 23128684 A JP23128684 A JP 23128684A JP S61110401 A JPS61110401 A JP S61110401A
- Authority
- JP
- Japan
- Prior art keywords
- silicone resin
- resistor
- coating
- power
- wire
- 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
- Details Of Resistors (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】
〔発明の利用分野〕
本発明は、鉄道車両やエレベータ−などの各種の制御系
に使用される電力用被覆巻線抵抗器に係り、特に、その
被覆材料としてシリコン樹脂を用いた電力用被覆巻線抵
抗器に関する。Detailed Description of the Invention [Field of Application of the Invention] The present invention relates to a coated wire-wound resistor for power use used in various control systems such as railway vehicles and elevators, and particularly to a coated wire-wound resistor using silicone resin as the coating material. This invention relates to a coated wire-wound resistor for electric power using.
電気回路に使用される抵抗器には種々の形式のものが知
られているが、鉄道車両やエレベータ−の制御系などで
は、第２図及び第３図に示すような電力用被覆巻線抵抗
器が主として使用されている。Various types of resistors are known for use in electrical circuits, but in control systems for railway vehicles and elevators, coated wire-wound resistors for power use as shown in Figures 2 and 3 are used. utensils are mainly used.
これら第２図、第３図において、ｌはセラミック材から
なる巻芯、２は端子、３はニクロム線などの抵抗線、４
はホーローなどの絶縁被覆で、巻芯ｌに抵抗線３を巻回
したあと、絶縁液Ｎ４を施こして全体を電気的１機械的
に保護するようになっている。なお、巻芯１の断面形状
は図示のような円筒状に限らず、円柱状、楕円状、長方
形状なども用いられている。In these figures 2 and 3, l is a winding core made of ceramic material, 2 is a terminal, 3 is a resistance wire such as nichrome wire, 4
After the resistance wire 3 is wound around the winding core 1 using an insulating coating such as enamel, an insulating liquid N4 is applied to protect the whole electrically and mechanically. Note that the cross-sectional shape of the winding core 1 is not limited to the cylindrical shape shown in the figure, but may also be cylindrical, elliptical, rectangular, or the like.
ところで、このような電力用波ｒＲ巻線抵抗器（以下、
車に抵抗器という）としては、上記したように、その絶
縁被覆４としてホーローを用いたものが従来から主流を
占めている。そして、このホーローを被覆した抵抗器に
よれば、抵抗器の巻芯となるセラミック材や抵抗線に対
する絶縁被覆の密着性が良く、高い強度が得られるため
、堅牢で長期間の使用に耐えるという長所を有するが、
その反面、ホーロー被覆の原料である粉末状のホーロー
釉薬の中に鉛分を含み、それが公害問題の中心的成分で
あるから、その使用がさしひかえられる方向になり、そ
のため、これに代ってシリコン樹脂系の塗料で被覆した
抵抗器が注目を集めるようになってきた。By the way, such a power wave rR wire-wound resistor (hereinafter referred to as
As mentioned above, the mainstream of automobile resistors has traditionally been those using enamel as the insulating coating 4. According to resistors coated with this enamel, the insulation coating has good adhesion to the ceramic material and resistance wire that form the core of the resistor, and high strength is obtained, making it robust and durable for long-term use. Although it has advantages,
On the other hand, the powdered enamel glaze, which is the raw material for enamel coating, contains lead, which is a major component of pollution problems, so its use is being discouraged, and alternatives to it are being discouraged. Resistors coated with silicone resin paint have started to attract attention.
しかしながら、このようなシリコン樹脂系の塗料は、被
覆形成後の粘性や密着力がホーローに比して劣り、この
ため抵抗器の巻芯や抵抗線との相性が悪く、被覆部に多
くの亀裂の発生が避けられず、最悪の場合には被覆部の
一部が脱落してしまうことがあり、従って、従来のシリ
コン樹脂を絶縁被覆した抵抗器では充分な信頼性を保つ
のが困難であるという欠点があった。However, such silicone resin-based paints have inferior viscosity and adhesion after coating formation compared to enamel, and are therefore not compatible with resistor cores and resistance wires, resulting in many cracks in the coating. This is unavoidable, and in the worst case, part of the coating may fall off, making it difficult to maintain sufficient reliability with conventional resistors coated with silicone resin. There was a drawback.
本発明の目的は、上記した従来技術の欠点を除き、被覆
に亀裂や剥離、それに脱落などを生じる虞れがなく、充
分に高い信頼性を得ることができるシリコン樹脂被覆に
よる抵抗器を提供するにある。An object of the present invention is to provide a resistor coated with a silicone resin, which eliminates the drawbacks of the prior art described above, has no risk of cracking, peeling, or falling off of the coating, and can obtain sufficiently high reliability. It is in.
この目的を達成するため、本発明は、抵抗器の絶縁被覆
を形成すべきシリコン樹脂の中に、ガラスなどの絶縁材
料からなる短繊維状の細片を混入し、これによりシリコ
ン樹脂被覆を補強し、その結果としてシリコン樹脂被覆
の剥離や亀裂、さらに脱落などが発生しないようにした
点を特徴とする。In order to achieve this objective, the present invention mixes short fiber-like pieces made of an insulating material such as glass into the silicone resin that is to form the insulating coating of the resistor, thereby reinforcing the silicone resin coating. However, it is characterized by preventing the silicone resin coating from peeling, cracking, or falling off as a result.
以下、本発明による電力用被覆巻″４ＦＡ抵抗器につい
て図示の実施例により詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the coated wound "4FA" resistor for power use according to the present invention will be explained in detail with reference to the illustrated embodiments.
第１図及び第４図は本発明の一実施例で、巻芯ｌ、端子
２．抵抗線３．シリコン樹脂の絶縁被膜４はいずれも第
２図、第３図で説明した従来例と同じであるが、シリコ
ン樹脂の絶縁被膜４の中に短繊維状の細片５が所定の割
合いで混入されている点で、この実施例は上記従来例と
異なった構成となっているものである。1 and 4 show an embodiment of the present invention, in which a winding core l, a terminal 2. Resistance line 3. The silicone resin insulation coating 4 is the same as the conventional example explained in FIGS. 2 and 3, but short fiber-like pieces 5 are mixed in the silicone resin insulation coating 4 at a predetermined ratio. This embodiment has a different configuration from the above-mentioned conventional example.
短繊維状の細片５は、太さが０．０５〜０．５ｍｍのガ
ラス繊維を長さが１．０〜１０．０ｍｍ程度に砕いたも
ので、これを重量比でシリコン樹脂の中に３０％程度混
入し、絶縁被ｆｆ４が形成されるようになっている。The short fiber-like pieces 5 are made by crushing glass fibers with a thickness of 0.05 to 0.5 mm into lengths of about 1.0 to 10.0 mm, which are placed in silicone resin by weight. Approximately 30% of the insulating film ff4 is mixed in to form the insulation coating ff4.
このとき、この短繊維状細片５は、干しめシリコン樹脂
の塗料の中に所定の割合で混入しておき、それを抵抗器
に塗布した上で硬化するようにしてもよく、或いは、シ
リコン樹脂だけを所定の厚さで抵抗器に塗布し、それを
硬化させないうちに短繊維状の細片５を散布して所定量
がシリコン樹脂塗装に付着され、その中に混入されるよ
うにし、そのあと硬化を行なうようにしてもよい。At this time, the short fibrous pieces 5 may be mixed in a predetermined ratio in a dried silicone resin paint, and then cured after being applied to the resistor. Apply only the resin to a predetermined thickness on the resistor, and before it hardens, short fiber-like pieces 5 are sprinkled so that a predetermined amount adheres to the silicone resin coating and is mixed therein, After that, curing may be performed.
こうして短繊維状の細片５が所定量混入された上で硬化
したシリコン樹脂の絶縁被覆４は、この短繊維状の細片
５の働きによって架橋状態になって物理的な結合を深め
、引張りや破断に対する強度が爪光的に増加されること
になる。In this way, the silicone resin insulation coating 4 that has been cured with a predetermined amount of short fiber-like pieces 5 mixed therein becomes a crosslinked state due to the action of these short fiber-like pieces 5, deepening the physical bond, and tensile strength. The strength against breakage and breakage is significantly increased.
従って、この実施例によれば、絶縁被覆４の強度が通電
時での抵抗器の温度上昇や、周囲温度の変化などにより
発生するストレスに対しても充分に耐えるものとなり、
耐亀裂性が改善され、亀裂や剥離を生じたり、脱落を生
じたりするのを充分に防止することができる。Therefore, according to this embodiment, the strength of the insulating coating 4 is sufficient to withstand stress caused by temperature rise of the resistor during energization, changes in ambient temperature, etc.
The crack resistance is improved, and it is possible to sufficiently prevent cracking, peeling, and falling off.
また、このようにして絶縁被覆４の強度が充分に得られ
る結果、耐衝撃性も改善され、抵抗器の表面に物を当て
た場合などでもｔ員傷をこうむる虞れも少（なるから、
取扱いも容易になる。In addition, as a result of obtaining sufficient strength of the insulating coating 4 in this way, the impact resistance is also improved, and there is less risk of damage even if an object hits the surface of the resistor.
It also becomes easier to handle.
なお、以上の実施例では、シリコン樹脂の絶縁被ｆＷ４
の中に混入されるべき短繊維状の細片５の割合いを、重
量比で３０％としたが、本発明はこれに限定されるもの
ではない。In addition, in the above embodiment, the silicone resin insulation covering fW4
Although the proportion of the short fibrous pieces 5 to be mixed in was set to 30% by weight, the present invention is not limited to this.
さらに、この短繊維状の細片５の材質も、ガラスに限ら
ず、耐熱性や強度に優れ、かつシリコン樹脂との相性が
良いものならどのような材質のものでもよく、例えばポ
リイミド樹脂の繊維を用いてもよい。Furthermore, the material of the short fiber-like strips 5 is not limited to glass, but may be of any material as long as it has excellent heat resistance and strength, and is compatible with silicone resin, such as polyimide resin fibers. may also be used.
〔発明の効果〕
以上説明したように、本発明によれば、ソリコン樹脂の
絶縁被覆の中に短繊維状の細片を混入するという簡単な
構成で、抵抗器被覆の耐畠裂性を飛躍的に高めることが
できるから、使用中に被覆に帛、裂や剥離、さらには脱
落を生じたりするのが容易に防止され、ローコストで高
信頬度の電力用被ｙ１巻線抵抗器を確実に提供すること
ができる。[Effects of the Invention] As explained above, according to the present invention, the cracking resistance of the resistor coating can be dramatically improved with a simple structure in which short fiber-like pieces are mixed into the insulation coating of the soric resin. Because it can increase the durability, it easily prevents the coating from tearing, peeling, or even falling off during use, ensuring a low-cost, high-reliability power Y1 wire-wound resistor. can be provided to
第１図は本発明による電力用波ｉ巻線抵抗器の一実施例
を示す側面図、第２図は電力用被覆巻線抵抗器の従来例
を示す側面図、第３図は第２図の従来例の正面図、第４
図は第１図の実施例の正面図である。
１・・・巻芯、２・・・端子、３・・・抵抗線、４・・
・シリコン樹脂の絶縁被覆、５・・・短繊維状細片。
代理人 弁理士 弐 順次部（ほか１名）第１図
第４図FIG. 1 is a side view showing an embodiment of a power wave i-wound resistor according to the present invention, FIG. 2 is a side view showing a conventional example of a power sheathed wire-wound resistor, and FIG. Front view of the conventional example, No. 4
The figure is a front view of the embodiment of FIG. 1. 1... Winding core, 2... Terminal, 3... Resistance wire, 4...
・Silicone resin insulation coating, 5...Short fibrous pieces. Agent: Patent Attorney 2 Junji Department (and 1 other person) Figure 1 Figure 4
Claims (1)
いて、上記被覆をシリコン樹脂と絶縁材料の短繊維状細
片の混合体で構成したことを特徴とする電力用被覆巻線
抵抗器。 ２、特許請求の範囲第１項において、上記短繊維状細片
がガラス繊維の細片であることを特徴とする電力用被覆
巻線抵抗器。[Scope of Claims] 1. A coated wire-wound resistor for power use coated with silicone resin, characterized in that the cover is composed of a mixture of short fibrous pieces of silicone resin and an insulating material. wire wound resistor. 2. A covered wire-wound resistor for power use according to claim 1, wherein the short fibrous strips are glass fiber strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23128684A JPS61110401A (en) | 1984-11-05 | 1984-11-05 | Covered winding resistor for power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23128684A JPS61110401A (en) | 1984-11-05 | 1984-11-05 | Covered winding resistor for power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61110401A true JPS61110401A (en) | 1986-05-28 |
Family
ID=16921220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23128684A Pending JPS61110401A (en) | 1984-11-05 | 1984-11-05 | Covered winding resistor for power |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61110401A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006206046A (en) * | 2005-01-28 | 2006-08-10 | Campagnolo Spa | Bicycle wheel, and spoke and hub body thereof |
| JP2009246114A (en) * | 2008-03-31 | 2009-10-22 | Koa Corp | Electronic component and method of forming coating film on electronic component |
| JP2013200967A (en) * | 2012-03-23 | 2013-10-03 | Techno Ryowa Ltd | Ionizer electrode |
| JP2015095529A (en) * | 2013-11-12 | 2015-05-18 | ミクロン電気株式会社 | Resistance element and resistor employing the same |
-
1984
- 1984-11-05 JP JP23128684A patent/JPS61110401A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006206046A (en) * | 2005-01-28 | 2006-08-10 | Campagnolo Spa | Bicycle wheel, and spoke and hub body thereof |
| JP2009246114A (en) * | 2008-03-31 | 2009-10-22 | Koa Corp | Electronic component and method of forming coating film on electronic component |
| JP2013200967A (en) * | 2012-03-23 | 2013-10-03 | Techno Ryowa Ltd | Ionizer electrode |
| JP2015095529A (en) * | 2013-11-12 | 2015-05-18 | ミクロン電気株式会社 | Resistance element and resistor employing the same |
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