JPH03162681A - Current detector - Google Patents
Current detectorInfo
- Publication number
- JPH03162681A JPH03162681A JP1302998A JP30299889A JPH03162681A JP H03162681 A JPH03162681 A JP H03162681A JP 1302998 A JP1302998 A JP 1302998A JP 30299889 A JP30299889 A JP 30299889A JP H03162681 A JPH03162681 A JP H03162681A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- current
- gap
- path
- current detector
- 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
- 230000004907 flux Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 3
- 229920000742 Cotton Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
Description
【発明の詳細な説明】 「＃業ヒの利用分野」 木発明はｌｊ流神出器に係わるものである。[Detailed description of the invention] “#Field of use of business skills” The wooden invention is related to the lj style kenduki device.
ｒ律来の技術』
Ｍ寮のＳｊ流検出器は第１図のように測定纏（５）に流
れる雷治の作る磁力線（６）の変化をコイル（７）で檜
出することにより一一定線（５）に流れる電流を計測す
ることができた。As shown in Figure 1, the SJ flow detector in the M dormitory detects changes in the magnetic lines of force (6) created by Raiji flowing through the measurement tube (5) by using a coil (7) to detect the changes. It was possible to measure the current flowing through the constant wire (5).
「発明が解決しようとする問題点」
しかし、測定線（５）に大電流が流れる時コイル（７）
に生ずる起電力はかなりの高電尺または大電流となり、
これに接続される計測同路を破損する恐れが十分にある
。"Problem to be solved by the invention" However, when a large current flows through the measuring wire (5), the coil (7)
The electromotive force generated is quite high electric current or large current,
There is a good chance that the measurement line connected to this will be damaged.
ｒ問題点を解決するための手段」
ｖＩ．２ｌｉ２Ｉ及び第３図に示すように磁力綿の導通
路の形状を考えてみるならば、磁力線は小電流時には磁
路（８）を、大’ｌ流時には磁路（９）に分流する．
「作用』
磁束は小′ＷＩｔ流時には磁路（８）を通過するが大電
治時には磁路（９）のもつ空隙の長さと磁路（９）及び
磁路（８〉の磁束市度から決まるあるＩｔσから＠路（
９）に分流する。このため空隙（４）、磁路（８）及び
、磁路（９）の磁束畜度を一切に設定すればコイル（７
）に誘起するｔｌ’＋及び１ｊ滞は抑制することができ
ろ。``Means for solving problems'' vI. If we consider the shape of the conductive path of magnetic cotton as shown in Figure 3, the lines of magnetic force branch into magnetic path (8) when the current is small, and into magnetic path (9) when the current is large. ``Effect'' Magnetic flux passes through the magnetic path (8) when the flow is small, but when the flow is large, it is determined from the length of the air gap in the magnetic path (9) and the magnetic flux density of the magnetic path (9) and the magnetic path (8〉). From a certain Itσ to @path (
9). Therefore, if the magnetic flux density of the air gap (4), magnetic path (8), and magnetic path (9) is set to all, the coil (7
) induced tl'+ and 1j retention can be suppressed.
「実施例」
往って、コイル（７〉に接続する検帛同路に発生する高
電圧あるいは大電流を抑制することができる。"Embodiment" It is possible to suppress the high voltage or large current generated in the test circuit connected to the coil (7>).
「発明の効果」
以ヒのように、第２ｐ２ｌおよび第３（７）にしめず空
隙（４）を設けた磁芯（２）または磁芯（３）を含む磁
芯（１）を電流検帛器のｆｊｊ．芯として用いることは
後ろに接続される各種の泗定（５Ｊ路の保謹を容易にす
ることが出来る。"Effects of the Invention" As shown below, the magnetic core (1) including the magnetic core (2) or magnetic core (3) with a gap (4) provided in the second p2l and the third (7) is subjected to current detection. Cloth fjj. Using it as a core can facilitate the protection of various types of connections (5J paths) connected to the back.
（ｌ）．電流検出器の磁芯、 （２）及び（３）．
（１）の内部に空＃（４）を設けて取り付けられる磁芯
、 （６）．測定線、 （６）．（５）により作られる
磁力線、 （７）．コイル、 （４）．空隙、 （８）
．小電流時における磁路、 （９）．大電流時において
磁力線を分流する磁路。
ｗ！．１口 従来の電流検出器
＄２図 空隙を設けた電流横田器
＄３口 空隙を設けた電流検出器(l). Magnetic core of current detector, (2) and (3).
A magnetic core that is attached with an empty #(4) inside (1), (6). Measuring line, (6). (5) Magnetic field lines created by (7). Coil, (4). void, (8)
．． Magnetic path at low current (9). A magnetic path that shunts magnetic lines of force during large currents. Lol! ．． 1 port Conventional current detector $2 Diagram Current Yokota device with air gap $3 Current detector with air gap
Claims (1)
（第２図）または磁芯３（第３図）を挿入し、電流検出
器とする。A gap (4) is provided inside the magnetic core 1 (Fig. 1) to form the magnetic core 2.
(Fig. 2) or a magnetic core 3 (Fig. 3) is inserted to form a current detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1302998A JPH03162681A (en) | 1989-11-20 | 1989-11-20 | Current detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1302998A JPH03162681A (en) | 1989-11-20 | 1989-11-20 | Current detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03162681A true JPH03162681A (en) | 1991-07-12 |
Family
ID=17915706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1302998A Pending JPH03162681A (en) | 1989-11-20 | 1989-11-20 | Current detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03162681A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067391A1 (en) * | 1999-01-21 | 2001-01-10 | TDK Corporation | Current sensor |
-
1989
- 1989-11-20 JP JP1302998A patent/JPH03162681A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067391A1 (en) * | 1999-01-21 | 2001-01-10 | TDK Corporation | Current sensor |
| EP1067391A4 (en) * | 1999-01-21 | 2003-06-25 | Tdk Corp | Current sensor |
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