JPS5811089B2 - oil dart pot - Google Patents
oil dart potInfo
- Publication number
- JPS5811089B2 JPS5811089B2 JP50157493A JP15749375A JPS5811089B2 JP S5811089 B2 JPS5811089 B2 JP S5811089B2 JP 50157493 A JP50157493 A JP 50157493A JP 15749375 A JP15749375 A JP 15749375A JP S5811089 B2 JPS5811089 B2 JP S5811089B2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- movable iron
- iron piece
- oil
- lid
- 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
Landscapes
- Electromagnets (AREA)
- Breakers (AREA)
Description
【発明の詳細な説明】
本発明はオイルダッシュポットに関するもので、シリン
ダ内に密封せるオイルの漏洩を生じないようにすること
を目的とするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oil dashpot, and an object of the present invention is to prevent leakage of oil that can be sealed inside a cylinder.
以下本発明の実施例を図面について説明すると、１は上
端開口の合成樹脂よりなる有底シリンダで、底面に周胴
が薄肉である小口径の筒状部２が一体に突設される。Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a bottomed cylinder made of synthetic resin with an open upper end, and a small-diameter cylindrical portion 2 with a thin peripheral body is integrally provided on the bottom surface of the cylinder.
３はシリンダ１の上端開口部を気密的に閉塞せる磁性体
よりなる蓋体で、シリンダ１内にはシリコンオイルその
他のオイルが気密的に閉塞される。Reference numeral 3 denotes a lid made of a magnetic material that airtightly closes the upper end opening of the cylinder 1, and silicon oil or other oil is hermetically sealed inside the cylinder 1.
４はシリンダ１内に摺動するよう収納せる磁性体よりな
るプランジャー、５は蓋体３とプランジャー４間に圧縮
弾装せるコイルバネ、６は基端部の貫通孔７をシリンダ
１の中間部の外周層に固定せるヨークで、その先端に枢
支せる可動鉄片８の自由端側面は前記蓋体３の外面に対
向される。4 is a plunger made of a magnetic material that is slidably housed in the cylinder 1; 5 is a coil spring that is compressed between the lid 3 and the plunger 4; The free end side surface of the movable iron piece 8, which is pivotally supported at the tip of the yoke fixed to the outer peripheral layer of the yoke, is opposed to the outer surface of the lid body 3.
９は可動鉄片８の自由端側面を蓋体３から引離す方向に
作用するよう弾装せる復帰バネ、１０はヨーク６とシリ
ンダ１との固定部より上部のシリンダ１の外周層に巻装
せるコイルである。Reference numeral 9 denotes a return spring that is elastically loaded so as to act in a direction to separate the free end side surface of the movable iron piece 8 from the lid body 3, and 10 is wound around the outer peripheral layer of the cylinder 1 above the fixed part between the yoke 6 and the cylinder 1. It is a coil.
本発明は上記のような構成で、コイル１０を配電線等に
直列に挿入接続し、配電線に一定以上の過電流が流れる
と、コイル１０に流れる配電線の過電流の作る磁束によ
りプランジャー４は蓋体３側に吸引されてプランジャー
４はオイルの粘性抵抗とコイルバネ５のバネ力に抗して
頗るゆっくりと蓋体３側に移動し、プランジャー４が蓋
体３に当接すると、コイル１０に流れる電流の作る磁束
に対する磁路の磁気抵抗が減少して上記磁束が増加し、
可動鉄片８の自由端は蓋体３に吸着移動され、可動鉄片
８の移動によって配電線等の過電流を時限特性をもたせ
て検知できるものである。The present invention has the above-described configuration, and when the coil 10 is inserted and connected in series to a distribution line, etc., and when an overcurrent of a certain level or more flows through the distribution line, the magnetic flux generated by the overcurrent of the distribution line flowing through the coil 10 causes the plunger to be 4 is attracted to the lid 3 side, the plunger 4 slowly moves to the lid 3 side against the viscous resistance of the oil and the spring force of the coil spring 5, and when the plunger 4 comes into contact with the lid 3, , the magnetic resistance of the magnetic path to the magnetic flux created by the current flowing through the coil 10 decreases, and the magnetic flux increases,
The free end of the movable iron piece 8 is moved by adsorption to the lid 3, and by the movement of the movable iron piece 8, overcurrent in a power distribution line or the like can be detected with time-limited characteristics.
そしてシリンダ１の底面には周胴が薄肉である小口径の
筒状部２が突設されているため、シリンダ１内のオイル
がコイル１０に電流が流れることにより加熱されて膨張
すると、筒状部２の周胴が膨張しシリンダ１内の内圧は
四人的に大きくならないので、オイルの漏洩が発生し難
くなる効果がある。Since a small-diameter cylindrical portion 2 with a thin peripheral body is protruded from the bottom of the cylinder 1, when the oil in the cylinder 1 is heated and expanded by the current flowing through the coil 10, the cylindrical portion 2 is formed. Since the circumferential body of the portion 2 expands and the internal pressure within the cylinder 1 does not increase, there is an effect that oil leakage is less likely to occur.
図面は本発明の実施例の断面図である。
１はシリンダ、２は筒状部、３は蓋体、４はプランジャ
ー、５はコイルバネ、６はヨーク、７は貫通孔、８は可
動鉄片、９は復帰バネ、１０はコイルである。The drawings are cross-sectional views of embodiments of the invention. 1 is a cylinder, 2 is a cylindrical portion, 3 is a lid, 4 is a plunger, 5 is a coil spring, 6 is a yoke, 7 is a through hole, 8 is a movable iron piece, 9 is a return spring, and 10 is a coil.
Claims (1)
に周胴が薄肉である小口径の筒状部２を一体に突設し、
シリンダ１の上端開口部を磁性体よりなる蓋体３にて気
密的に閉塞してシリンダ１内にオイルを密封し、シリン
ダ１内に磁性体よりなるプランジャー４を摺動するよう
収納して前記蓋体３とプランジャー４間にコイルバネ５
を圧縮弾装し、シリンダ１の中間部の外周層に基端の貫
通孔７を挿入固定せるヨーク６の他端に可動鉄片８を枢
支して可動鉄片８の自由端側面を蓋体３の外面に対向し
、可動鉄片８の自由端側面を蓋体３より引離す方向に作
用する復帰バネ９を弾装し、ヨーク６とシリンダの固定
部より上部のシリンダ１の外周層にコイル１０を巻装し
てなるオイルダッシュポット。1. A small-diameter cylindrical portion 2 with a thin peripheral body is integrally provided on the bottom surface of a bottomed cylinder 1 made of synthetic resin with an open top end,
The upper end opening of the cylinder 1 is hermetically closed with a lid 3 made of a magnetic material to seal oil inside the cylinder 1, and a plunger 4 made of a magnetic material is slidably housed in the cylinder 1. A coil spring 5 is installed between the lid body 3 and the plunger 4.
A movable iron piece 8 is pivoted to the other end of the yoke 6 which is compressed and elastically mounted, and a through hole 7 at the base end is inserted and fixed into the outer peripheral layer of the middle part of the cylinder 1, and the free end side surface of the movable iron piece 8 is attached to the lid body 3. A coil 10 is mounted on the outer peripheral layer of the cylinder 1 above the fixed part of the yoke 6 and the cylinder, and is elastically loaded with a return spring 9 that faces the outer surface of the movable iron piece 8 and acts in a direction to pull the free end side surface of the movable iron piece 8 away from the lid body 3. An oil dashpot wrapped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50157493A JPS5811089B2 (en) | 1975-12-26 | 1975-12-26 | oil dart pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50157493A JPS5811089B2 (en) | 1975-12-26 | 1975-12-26 | oil dart pot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5280466A JPS5280466A (en) | 1977-07-06 |
| JPS5811089B2 true JPS5811089B2 (en) | 1983-03-01 |
Family
ID=15650882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50157493A Expired JPS5811089B2 (en) | 1975-12-26 | 1975-12-26 | oil dart pot |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5811089B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002334646A (en) * | 2001-05-10 | 2002-11-22 | Mitsubishi Electric Corp | Electromagnetic tripping device for circuit breaker |
-
1975
- 1975-12-26 JP JP50157493A patent/JPS5811089B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5280466A (en) | 1977-07-06 |
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