JPS5937628A - Oil dash pot - Google Patents
Oil dash potInfo
- Publication number
- JPS5937628A JPS5937628A JP14811282A JP14811282A JPS5937628A JP S5937628 A JPS5937628 A JP S5937628A JP 14811282 A JP14811282 A JP 14811282A JP 14811282 A JP14811282 A JP 14811282A JP S5937628 A JPS5937628 A JP S5937628A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- oil
- plunger
- specific gravity
- viscosity
- 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
- Breakers (AREA)
- Electromagnets (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】
この発明はサーキットプロテクタ等に適用されるオイル
ダッシュポットトに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil dash pot applied to circuit protectors and the like.
負荷の起動鶏゛流が大きく、かつ長く続くよう々場合に
通用されるサーキットプロテクタは、従来、粘度の高い
オイルを封入しなオイルダッシュポットを使用して、起
動時の突入電流による誤動作を防止していた。Conventionally, circuit protectors used when the load startup current is large and lasts for a long time use an oil dashpot that does not contain high viscosity oil to prevent malfunctions caused by inrush current at startup. Was.
しかし、このオイルダッシュポットは、負荷の平常運転
時の過負荷保護に対しても長い時延特性を示すことにな
るため過負荷時の保護が安全に保証できないという欠点
があった。However, this oil dashpot has the disadvantage that protection during overload cannot be safely guaranteed because it exhibits a long delay characteristic even for overload protection during normal operation of the load.
したがって、この発明の目的は、起動時の誤動作を防止
でき、しかも平常時の過負荷保護を迅速に行うことがで
きるオイルダッシュポットを提供することである。Therefore, an object of the present invention is to provide an oil dashpot that can prevent malfunctions during startup and can quickly provide overload protection during normal conditions.
この発明の一実施例を図面に示すうすなわち、このオイ
ルダッシュポットは、縦姿勢のシリンダ１内の所定高さ
までに高粘度大比重のフッ素シリコンオイ／Ｉ／２を充
填し、残りに前記オイル２よりも低粘度小比重のシリコ
ンオイル３を充填する。An embodiment of the present invention is shown in the drawings. Specifically, this oil dashpot is filled with fluorine silicone oil/I/2 having a high viscosity and large specific gravity up to a predetermined height in a cylinder 1 in a vertical position, and the remaining part is filled with the oil. Silicone oil 3 having a lower viscosity and lower specific gravity than 2 is filled.
さらにシリンダ１内にプランジャ４を挿入し、プランジ
ャ４に復帰ばね５の下端部を連結し、シリンダ１の開口
をポールヘッド６で密閉するととも忙復帰ばね５の上端
部を係止する。この状態でプランジＪＰ４は復帰ばね５
によりシリンダ１の底部に位置し、かつフッ素シリコン
オイル２に沈められでいる。Furthermore, the plunger 4 is inserted into the cylinder 1, the lower end of the return spring 5 is connected to the plunger 4, the opening of the cylinder 1 is sealed with the pole head 6, and the upper end of the return spring 5 is locked. In this state, plunge JP4 has return spring 5.
It is located at the bottom of the cylinder 1 and is submerged in fluorine silicone oil 2.
このシリンダ１の外周にコイル枠７を嵌着し、コイル枠
７にコイ／Ｉ／８を巻装する。Ｌ字形ヨーク９の水平板
９ａの孔１０をシリンダ１の底部に通してコイル枠７の
上端部に接触し、ヨーク９の垂直板９ｂの上端部にアー
マチュア１１０基端部を支軸により枢着し、アーマチュ
ア１１の先端部をポールヘッド６の近傍に臨ませる。A coil frame 7 is fitted around the outer periphery of the cylinder 1, and a coil/I/8 is wound around the coil frame 7. The hole 10 of the horizontal plate 9a of the L-shaped yoke 9 is passed through the bottom of the cylinder 1 to contact the upper end of the coil frame 7, and the base end of the armature 110 is pivoted to the upper end of the vertical plate 9b of the yoke 9 by a support shaft. The tip of the armature 11 is placed near the pole head 6.
このオイルダッシュポットのコイル８が負荷回路に配線
され、負荷が起動するとき、その突入電流によりコイｌ
し８が励磁′さゼｔてプランジャ４がポールヘッド６側
に吸引力の作用を受けるが、復帰ばね５：＋５−よびオ
イル２，３の粘度の設定によりプランジャ４の移動に時
間がかかり、プランジャ４がポールヘッド６に達するま
でに突入電流が終了できるようにすると、誤動作を防止
できる。一方負荷の平常運転時に過負荷となったとき、
シリンダ＋４がＯｔｌ記よりも強い吸引力を受けて上方
に移動ヲ始め、プランジャ４がシリコンオイル３側にな
ると粘度が低いため移動速度を速めてボーｐへラド６に
接近し、アーマチュア１１とポールヘッド６間に吸引力
を生じさせてアーマチュア１１を駆動し、回路しゃ断等
の保護動作を行わしめる。Coil 8 of this oil dashpot is wired to the load circuit, and when the load starts, the inrush current causes the coil to
8 is excited and the plunger 4 receives the action of an attractive force on the pole head 6 side, but it takes time for the plunger 4 to move due to the setting of the return spring 5:+5- and the viscosity of the oils 2 and 3. By allowing the inrush current to end before the plunger 4 reaches the pole head 6, malfunctions can be prevented. On the other hand, when an overload occurs during normal load operation,
Cylinder +4 receives a stronger suction force than Otl and begins to move upward, and when plunger 4 is on the side of silicone oil 3, the viscosity is low, so it accelerates its movement speed and approaches BoP and Rad6, and armature 11 and pole A suction force is generated between the heads 6 to drive the armature 11 and perform protective operations such as circuit interruption.
さらに電路に短絡電流が流れた場合、アーマチュア１１
およびポールヘッド６１１ｉ１に十分な磁束が流れてプ
ランジャ４が移動する前に瞬時にアーマチュアが駆動さ
れる。Furthermore, if a short circuit current flows in the electrical circuit, armature 11
Sufficient magnetic flux flows through the pole head 611i1, and the armature is instantly driven before the plunger 4 moves.
以上のように、この発明のオイルダッシュポットは、シ
リンダ内に高粘度大比重オイルおよび低粘度小比重オイ
μを充填し、プランジャの移動速度を移動始め側を遅（
、終り側を速くするようにしたため、突入電流が大きく
て比較的長くても起動時の誤動作を防止できるとともに
、平常時の過負荷保護を迅速にでき保護の安全性を図る
ことができるという効果がある。As described above, in the oil dashpot of the present invention, the cylinder is filled with high viscosity, large specific gravity oil and low viscosity, low specific gravity oil μ, and the moving speed of the plunger is slowed down (
By making the termination side faster, it is possible to prevent malfunctions at startup even if the inrush current is large and relatively long, and also has the effect of quickly providing overload protection during normal conditions and ensuring protection safety. There is.
図面はこの発明の一実施例の断面図である。
１・・・シリンダ、２・・・フッ素シリコンオイル（高
粘度大比重オイル、３・・・シリコンオイル（低粘度小
比重オイル）、４・・・プランジャ、５・・・復帰げね
、６・・・ボールヘッドThe drawing is a sectional view of one embodiment of the invention. 1... Cylinder, 2... Fluorine silicone oil (high viscosity, large specific gravity oil), 3... Silicone oil (low viscosity, small specific gravity oil), 4... Plunger, 5... Return, 6.・Ball head
Claims (1)
ダ内に所定高さまで充填された高粘度大比重オイルと、
前記シリンダ内の残りの空間忙充填された低粘度小比重
オイルと、前記シリンダ内に摺動自在に挿入されて高粘
度大比重オイル内に浸漬さねぇプランジャと、前記シリ
ンダの上端開口を密閉−するポールヘッドと、前記シリ
ンダ内で前記ポールヘッドとプランジャとの間に介設さ
れた復帰ばねとを備えたオイルダッシュポット。A cylinder in a vertical position around which a coil is wound, a high viscosity high specific gravity oil filled to a predetermined height within this cylinder,
The remaining space in the cylinder is filled with low viscosity, low specific gravity oil, a plunger that is slidably inserted into the cylinder so as not to be immersed in the high viscosity, high specific gravity oil, and the upper end opening of the cylinder is sealed. and a return spring interposed between the pole head and the plunger within the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14811282A JPS5937628A (en) | 1982-08-25 | 1982-08-25 | Oil dash pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14811282A JPS5937628A (en) | 1982-08-25 | 1982-08-25 | Oil dash pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5937628A true JPS5937628A (en) | 1984-03-01 |
Family
ID=15445511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14811282A Pending JPS5937628A (en) | 1982-08-25 | 1982-08-25 | Oil dash pot |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937628A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797088A (en) * | 1985-04-30 | 1989-01-10 | Toyotomi Kogyo Co., Ltd. | Safety device for oil burner |
| JP2009206304A (en) * | 2008-02-28 | 2009-09-10 | Mitsubishi Electric Corp | Semiconductor light receiving element |
-
1982
- 1982-08-25 JP JP14811282A patent/JPS5937628A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4797088A (en) * | 1985-04-30 | 1989-01-10 | Toyotomi Kogyo Co., Ltd. | Safety device for oil burner |
| JP2009206304A (en) * | 2008-02-28 | 2009-09-10 | Mitsubishi Electric Corp | Semiconductor light receiving element |
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