JPH09190901A - Water cooled resistor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water cooled resistor, mechanically improved for a shock and internal pressure, which can be used without being influenced by the purity of the cooling water. SOLUTION: A pipe 2 as a core pipe of this resistor is formed of an organic insulating material which has light weight and good heat and moisture resistance and has good electric characteristics and processability. A film or a winding resistor of metal or carbon, etc., is formed on the outer peripheral part of the insulating pipe 2, and nozzles 4 for flowing water are connected to both ends thereof in a screwed fitting manner using a bonding agent 7. Further, electrode components 3 are separately provided by interposing an insulating member between the nozzles 4 for flowing water and the electrode components 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本抵抗器は、小型で高電力用を必
要とする産業分野でダミーロードやサイリスタ素子の保
護用として使用される抵抗器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present resistor relates to a resistor used for protecting a dummy load or a thyristor element in an industrial field requiring a small size and high power.

【０００２】[0002]

【従来の技術】従来、この分野の抵抗器は、焼結抵抗で
あるセラミック抵抗器が使用されている。この抵抗器
は、更に大電力用途に使用するため、抵抗体にノズルを
設け抵抗体中を流水させる直接又は抵抗器に金属端子を
設け、その内部を流水させる間接冷却する構造となって
いる。また、セラミック抵抗器だけでなく碍子などのパ
イプに抵抗体を形成し、ノズルを取り付けて内部を流水
させ冷却する構造などもある。2. Description of the Related Art Conventionally, ceramic resistors, which are sintering resistors, have been used as resistors in this field. This resistor has a structure in which a nozzle is provided in the resistor to cause water to flow through the resistor, or a metal terminal is provided in the resistor and indirect cooling is performed to cause the inside to flow, in order to use the resistor for higher power application. There is also a structure in which not only a ceramic resistor but also a resistor is formed on a pipe such as an insulator, and a nozzle is attached to cool the inside by flowing water.

【０００３】[0003]

【発明が解決しようとする課題】このように焼結抵抗器
や碍子で構成された抵抗器は、ノズルなどの冷却部を取
り付ける場合には外部からの力によって固定するか、あ
るいは焼結抵抗器や碍子のノズル取り付け部分に、メタ
ライズ加工などの特殊加工を施し銀ロウ付けなどによっ
て固定されていた。そのため密着性が悪く気密性に欠
け、水漏れなどが発生しやすいことThe sintered resistor or the resistor constructed of the insulator as described above is fixed by an external force when a cooling part such as a nozzle is attached, or the sintered resistor is fixed. The nozzle mounting part of the insulator was subjected to special processing such as metallization and fixed by silver brazing. Therefore, the adhesion is poor, the airtightness is poor, and water leakage is likely to occur.

【０００４】また、焼結抵抗や碍子などの焼き物を使用
しているため、外部からの衝撃や取り付け時の締め付け
などで、割れやカケなど機械的に弱く使用上の取り扱い
には注意を払わねばならないことAlso, since the ceramics such as sintering resistance and porcelain are used, they are mechanically weak such as cracks and chips due to external impacts and tightening at the time of installation, so care must be taken in handling during use. Things that don't happen

【０００５】電極部がノズルと一体もしくは冷却水に一
部に触れているなどのように、冷却水がある程度の純度
を有する純水での使用を条件としないと、導通してしま
い短絡事故の原因となってしまうことUnless the cooling water is used as pure water having a certain degree of purity, such as when the electrode portion is integrated with the nozzle or is in contact with the cooling water, it becomes conductive and a short circuit accident occurs. Cause

【０００６】[0006]

【課題を解決するための手段】上記課題を解決するため
に、本発明による抵抗器は芯管に軽量で耐熱・耐湿性が
良く電気特性や加工性に優れているＦＲＰパイプ等の有
機系絶縁材料を使用することで、外部応力に対する強度
が向上し、取り付け時の取り扱いなども容易になる。In order to solve the above-mentioned problems, the resistor according to the present invention has a core tube of an organic insulation such as a FRP pipe which is lightweight and has excellent heat resistance and humidity resistance and excellent electrical characteristics and workability. By using the material, the strength against external stress is improved and the handling at the time of mounting becomes easy.

【０００７】また、冷却部のノズルの接続にはパイプと
ノズルの双方にねじ切り加工を行い、接着剤を付けてネ
ジ込み接続とした。これにより密着性に優れ気密性が良
いため、冷却水の内圧による水漏れ事故などが発生し難
くなる。Further, in connection with the nozzle of the cooling section, both the pipe and the nozzle were threaded, and an adhesive was applied to make a screwed connection. As a result, the adhesiveness is excellent and the airtightness is good, so that water leakage accidents due to the internal pressure of the cooling water are less likely to occur.

【０００８】次に電極部を冷却水に接触させず、流水用
ノズルと兼用しないよう別途設けることにより、冷却水
の純度に影響されず電気的に優れ、高耐電圧にも効果的
に使用できる。Next, the electrode portion is separately provided so as not to come into contact with the cooling water so as not to also serve as the nozzle for running water, so that it is electrically excellent without being affected by the purity of the cooling water and can be effectively used for high withstand voltage. .

【０００９】[0009]

【作 用】このようにして構成された抵抗器は、芯管
パイプに有機系絶縁材料を使用することで、衝撃や機械
的に強くなり取り扱いが容易になり、また、流水用ノズ
ルとの接続に接着剤を使用したネジ込み方式を採用した
ことにより、機械的に優れ冷却水の内圧に対する気密漏
れなどによる水漏れ事故などが発生し難くなる。なおか
つ、電極部と流水用のずるとの間に絶縁物を介して接続
することにより、冷却水の純度に関係なく使用が可能と
なる。[Operation] The resistor constructed in this way uses an organic insulating material for the core pipe, which makes it easier to handle due to shock and mechanical strength, and it can be connected to a nozzle for running water. By adopting a screw-in method using an adhesive, it is mechanically excellent, and water leakage accidents due to airtight leakage against the internal pressure of the cooling water are less likely to occur. Moreover, by connecting the electrode portion and the slip for running water via an insulator, it becomes possible to use the cooling water regardless of the purity thereof.

【００１０】[0010]

【実施例１】以下、本発明の実施例を添付図面に基づい
て詳細に説明する。図１（ａ）は本発明による抵抗器の
一実施例を示す正面図、断面図及び側面図と（ｂ）はＡ
部の拡大図である。この抵抗器は数Ω〜数千Ω程度の抵
抗値を有し、主として冷却しながらより大きな電力で使
用することを目的とした抵抗器で、図に示すように抵抗
体、有機系絶縁パイプ、電極、冷却用ノズルとを備えて
成る。Embodiment 1 An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1A is a front view, a sectional view and a side view showing an embodiment of a resistor according to the present invention, and FIG.
It is an enlarged view of a part. This resistor has a resistance value of several Ω to several thousand Ω, and is a resistor mainly intended to be used with larger power while being cooled.As shown in the figure, a resistor, an organic insulation pipe, It comprises an electrode and a cooling nozzle.

【００１１】抵抗体の構成としては有機系絶縁パイプ外
周部に、金属又はカーボン系等の皮膜あるいは巻線抵抗
体を用いて形成する。As for the constitution of the resistor, it is formed on the outer peripheral portion of the organic insulating pipe by using a metal or carbon film or a winding resistor.

【００１２】上記抵抗器の両端に耐腐食性の冷却用ノズ
ルを接着剤を使用して、ねじ込み固定する。また、電極
部も冷却用ノズルとの間に絶縁物を介して別途両端に設
ける。Corrosion resistant cooling nozzles are screwed and fixed to both ends of the resistor by using an adhesive. Further, the electrode portions are separately provided at both ends via an insulator between the nozzle and the cooling nozzle.

【００１３】[0013]

【発明の効果】本発明の効果は、有機系絶縁パイプを使
用することで、焼結抵抗器や碍子などにはない加工性に
優れ、機械的に強く割れ・カケなどが生じない弾力性も
有するので、ノズルとの接続にねじ込み方法を採用でき
る。その結果、軽量で取り扱い易く気密性の高いものと
なり、使用中に於ける冷却水の水漏れなどによる事故が
非常に発生し難くなり、管理上のわずらわしさから解放
されると共に経済的効果が得られる。The effect of the present invention is that by using an organic insulating pipe, it has excellent workability not found in sintered resistors, insulators and the like, and also has elasticity that does not cause strong mechanical cracking or chipping. Since it has, the screwing method can be adopted for the connection with the nozzle. As a result, it is lightweight, easy to handle, and highly airtight, and accidents due to water leakage of cooling water during use are extremely unlikely to occur, freeing you from the hassle of management and obtaining an economic effect. To be

【００１４】また、機械的強度が向上したことで、出荷
梱包方法も簡素化できる。その結果、材料費や管理工数
などの削減にもなる。Further, since the mechanical strength is improved, the shipping and packing method can be simplified. As a result, material costs and management man-hours can be reduced.

【００１５】また、電極部と流水用ノズルを、絶縁物を
介して別途に設けることにより、冷却水の純度に影響さ
れること無く使用が可能となり、使用者は冷却水に水道
水での使用も可能で、純水製造装置を別途設置すること
も不要となるばかりではなく、冷却水の循環装置の小型
化も可能なる。つまり、付帯設備の不要、縮小化及びス
ペースの有効利用が可能である。Further, by separately providing the electrode part and the nozzle for running water through the insulator, the electrode can be used without being affected by the purity of the cooling water, and the user can use the tap water as the cooling water. In addition to the need for a separate installation of a pure water production device, the cooling water circulation device can be downsized. That is, it is possible to eliminate the need for auxiliary equipment, reduce the size, and effectively use the space.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明による抵抗器の一実施例を示す（ａ）は
正面図（一部断面図）及び側面図と（ｂ）はＡ部の拡大
図である。FIG. 1A is a front view (partially sectional view) and a side view showing an embodiment of a resistor according to the present invention, and FIG. 1B is an enlarged view of part A.

【符号の説明】[Explanation of symbols]

１ 抵抗部 ２ 有機系絶縁パイプ ３ 電極部 ４ 冷却用ノズル ５ 充填剤 ６ 外装 ７ 接着剤 1 Resistor 2 Organic Insulated Pipe 3 Electrode 4 Cooling Nozzle 5 Filler 6 Exterior 7 Adhesive

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 ＦＲＰ等の有機系絶縁パイプ外周部に金
属又巻線抵抗体を形成し、両端に金属又は絶縁材からな
る流水用ノズルを取り付けたことを特徴とした抵抗器。1. A resistor characterized in that a metal or wire-wound resistor is formed on an outer peripheral portion of an organic insulating pipe such as FRP, and flowing water nozzles made of metal or an insulating material are attached to both ends. 【請求項２】 上記抵抗器において有機系絶縁パイプ外
周部にカーボン系等の皮膜を形成したことを特徴とした
抵抗器。2. The resistor according to claim 1, wherein a carbon-based film or the like is formed on an outer peripheral portion of the organic insulating pipe. 【請求項３】 請求項１及び２記載の抵抗器において、
有機系絶縁パイプと金属又は絶縁材からなる流水用ノズ
ルとの接続をねじ切り加工し、接着剤にて固定したこと
を特徴とした抵抗器。3. The resistor according to claim 1, wherein:
A resistor characterized in that a connection between an organic insulation pipe and a nozzle for running water made of metal or an insulating material is threaded and fixed with an adhesive. 【請求項４】 請求項１及び２記載の抵抗器において、
電極部と流水用ノズルとは絶縁材を介して設けているこ
とを特徴とした抵抗器。4. The resistor according to claim 1 or 2,
A resistor characterized in that the electrode portion and the flowing water nozzle are provided through an insulating material.