JPH0450541Y2 - - Google Patents
Info
- Publication number
- JPH0450541Y2 JPH0450541Y2 JP1984162222U JP16222284U JPH0450541Y2 JP H0450541 Y2 JPH0450541 Y2 JP H0450541Y2 JP 1984162222 U JP1984162222 U JP 1984162222U JP 16222284 U JP16222284 U JP 16222284U JP H0450541 Y2 JPH0450541 Y2 JP H0450541Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- coil
- input
- output terminals
- 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.)
- Expired
Links
- 239000000758 substrate Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、周状磁性体コアの一部に磁気ギヤツ
プを設けた磁性体コアへ巻線を施したコイルと、
その磁気ギヤツプ内に入れた（感磁）素子とから
なる電流検出器の構造に関するものである。[Detailed description of the invention] [Field of industrial application] The present invention consists of a coil in which a wire is wound around a magnetic core in which a part of the circumferential magnetic core is provided with a magnetic gap;
This invention relates to the structure of a current detector consisting of a (magnetic sensing) element placed within the magnetic gap.
交流電流用の電流検出器（以後、AC−CTと略
す）は、第３図に示すように、環状の磁性体コア
８に被検出電流が流れる導線を１次側コイル２と
して１〜数十ターン巻き、２次側に検出用コイル
９を巻き、１次側コイル２に流れる交流電流によ
る磁性体コア８内の磁束の変化によつて２次側コ
イル９に誘起される電圧を電圧検出器１０で検出
している。 As shown in FIG. 3, a current detector for alternating current (hereinafter abbreviated as AC-CT) has a primary coil 2, which is a conductor wire through which a current to be detected flows through an annular magnetic core 8. A detection coil 9 is wound on the secondary side, and a voltage detector detects the voltage induced in the secondary coil 9 due to changes in magnetic flux in the magnetic core 8 due to alternating current flowing through the primary coil 2. 10 is detected.
一方、直流もしくはパルス状電流用の電流検出
器（以後、DC−CTと略す）は、第４図に示すよ
うに、周状の磁性体コア１の一部に磁気ギヤツプ
３を設け、磁気ギヤツプ３の内に感磁素子４（例
えばホール素子、磁気抵抗素子）を置き、AC−
CTと同様に被検出電流が１〜数十ターンの１次
側コイル２に流れる事によつて、磁性体コア１に
発生する磁束密度を磁気ギヤツプ３の内に置いた
感磁素子４によつて電気的出力として検出してい
る。 On the other hand, a current detector for direct current or pulsed current (hereinafter abbreviated as DC-CT) has a magnetic gap 3 provided in a part of a circumferential magnetic core 1, as shown in FIG. Place a magnetic sensing element 4 (e.g. Hall element, magnetoresistive element) inside AC-
Similar to CT, when the current to be detected flows through the primary coil 2 with one to several tens of turns, the magnetic flux density generated in the magnetic core 1 is controlled by the magnetic sensing element 4 placed inside the magnetic gap 3. It is detected as an electrical output.
DC−CTは、AC−CTに比べ直流電流から交流
電流まで検出でき、又出力が周波数に関係しない
ので、周波数成分が一定でないパルス電流等を検
出するには便利である。 Compared to AC-CT, DC-CT can detect anything from direct current to alternating current, and the output is not related to frequency, so it is convenient for detecting pulsed currents and the like whose frequency components are not constant.
ここで、第２図を参照し、従来のDC−CTの構
造について説明すると、磁性体コア１の磁気ギヤ
ツプの部分及び感磁素子をケース６内部に入れ、
樹脂固定し、磁性体コア１においてケース６の外
にある部分をボビン７で覆い、このボビン７に巻
線を施し１次側コイル２とすることにより構成さ
れている。
Here, the structure of a conventional DC-CT will be explained with reference to FIG. 2. The magnetic gap part of the magnetic core 1 and the magnetic sensing element are placed inside the case 6,
It is constructed by fixing the magnetic core 1 with a resin, covering the portion of the magnetic core 1 outside the case 6 with a bobbin 7, and winding the bobbin 7 to form the primary coil 2.
〔考案が解決しようとする問題点〕
しかしながら、従来のDC−CT構造では、１次
側コイル２が外装ケース６の外にあるために、動
作中に触れることができず、何らかの原因により
コイル２の線材を傷つけてしまい、コイル２の絶
縁状態を著しく低下させる可能性がある。さらに
は、基板実装に対して、１次側コイル２の端子位
置決めが容易に決まらないという欠点を有してい
る。[Problems to be solved by the invention] However, in the conventional DC-CT structure, the primary coil 2 is located outside the outer case 6 and cannot be touched during operation, and for some reason the coil 2 This may damage the wire material of the coil 2, and the insulation state of the coil 2 may be significantly deteriorated. Furthermore, it has the disadvantage that the terminal positioning of the primary coil 2 cannot be determined easily when mounted on a board.
本考案では、周状の磁性体コアの一部に磁気ギ
ヤツプを設けた該磁性体コアへ巻線を施したコイ
ルと、前記磁気ギヤツプ内に入れた感磁素子とか
らなるDC−CTにおいて、前記コイル及び前記感
磁素子の入出力端子を除いた前記DC−CTを絶縁
性容器内へ収容し、前記入出力端子を基板利用に
よつて位置決めすることにより、比較的簡単に
DC−CTの絶縁を高め、基板実装に対し容易に対
応することができる。
In the present invention, a DC-CT includes a coil in which a magnetic gap is provided in a part of a circumferential magnetic core and a coil is wound around the magnetic core, and a magnetic sensing element placed in the magnetic gap. By housing the DC-CT excluding the coil and the input/output terminals of the magneto-sensitive element in an insulating container, and positioning the input/output terminals by using a board, it can be achieved relatively easily.
It improves DC-CT insulation and can easily be mounted on a board.
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
本考案の実施例を第１図に示す。一部に磁気ギ
ヤツプ３を持つ周状の磁性体コア１に被検出電流
が流れるコイル２を１〜数十ターン巻き、磁気ギ
ヤツプ３内にホール素子等の感磁素子４を入れ
る。この時、感磁素子４の入出力端子及びコイル
２の入出力端子を基板５によつて位置決めをし、
各入出力端子を絶縁性容器６の外部へ取り出す。
このとき、基板５は絶縁性容器６にその開口で嵌
合される。なお、感磁素子４の入出力端子は、線
径が細いため、引き回しをせずに容器６外へ引き
出すことが望ましい。また容器６内のDC−CTを
絶縁性樹脂によりモールドする場合は、基板５の
一部を切削して形成される穴から樹脂を充填すれ
ばよい。 An embodiment of the present invention is shown in FIG. A coil 2 through which a current to be detected flows is wound around a circumferential magnetic core 1 having a magnetic gap 3 in a part, and a coil 2 through which a current to be detected flows is wound one to several tens of turns, and a magnetic sensing element 4 such as a Hall element is inserted into the magnetic gap 3. At this time, the input/output terminals of the magnetic sensing element 4 and the input/output terminals of the coil 2 are positioned by the substrate 5,
Each input/output terminal is taken out to the outside of the insulating container 6.
At this time, the substrate 5 is fitted into the insulating container 6 through its opening. Note that since the input/output terminals of the magnetic sensing element 4 have a small wire diameter, it is desirable to draw them out of the container 6 without routing them. Further, when molding the DC-CT in the container 6 with an insulating resin, the resin may be filled through a hole formed by cutting a part of the substrate 5.
以上説明したように、本考案では、DC−CTを
絶縁性容器内に収容し、感磁素子及びコイルの入
出力端子を基板によつて位置決めすることによつ
て、DC−CTと外部との絶縁性が高まり、かつ基
板実装に対して容易に対応することが出来る効果
がある。また、コイル及び感磁素子の入出力端子
を基板によつて位置決めをした後、入出力端子を
除く電流検出器を一面が開口した絶縁性容器内
に、基板がこの開口で嵌合された状態で、収容し
ているので、製造が容易であるという利点もあ
る。
As explained above, in the present invention, the DC-CT is housed in an insulating container, and the input/output terminals of the magnetic sensing element and the coil are positioned by the board, thereby connecting the DC-CT to the outside. This has the effect of increasing insulation and making it easier to mount on a board. In addition, after positioning the coil and the input/output terminals of the magneto-sensitive element using the board, the current detector, excluding the input/output terminals, is fitted into an insulating container with the opening opened on one side. Since it is housed in a container, it also has the advantage of being easy to manufacture.
第１図は本考案によるDC−CTの一実施例の構
造を示した斜視図、第２図は従来のDC−CTの外
形を示した斜視図、第３図は交流電流を検出する
電流検出器を示した概略図、第４図は直流電流を
検出する電流検出器を示した概略図である。
１……周状磁性体コア、２……１次側コイル、
３……磁気ギヤツプ、４……感磁素子、５……基
板、６……絶縁性容器。
Fig. 1 is a perspective view showing the structure of an embodiment of the DC-CT according to the present invention, Fig. 2 is a perspective view showing the external shape of a conventional DC-CT, and Fig. 3 is a current detection device that detects alternating current. FIG. 4 is a schematic diagram showing a current detector for detecting direct current. 1... Circumferential magnetic core, 2... Primary coil,
3...Magnetic gap, 4...Magnetic sensing element, 5...Substrate, 6...Insulating container.
Claims (1)
アと、該磁気コアに巻回されたコイルと、前記磁
気ギヤツプ内に設けられた感磁素子とからなる電
流検出器において、前記コイル及び前記感磁素子
の入出力端子を基板によつて位置決めをし、前記
入出力端子を除く前記電流検出器を一面が開口し
た絶縁性容器内に、前記基板が該開口で嵌合され
た状態で、収容し、前記入出力端子のみを前記絶
縁性容器外へ引き出したことを特徴とする電流検
出器の構造。 A current detector comprising a circumferential magnetic core partially provided with a magnetic gap, a coil wound around the magnetic core, and a magnetic sensing element provided within the magnetic gap, the coil and the Input/output terminals of the magneto-sensitive element are positioned by a substrate, and the current detector except for the input/output terminals is placed in an insulating container with one side open, with the substrate fitted at the opening, 1. A structure of a current detector, characterized in that the current detector is housed in the insulating container, and only the input/output terminals are drawn out of the insulating container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984162222U JPH0450541Y2 (en) | 1984-10-29 | 1984-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984162222U JPH0450541Y2 (en) | 1984-10-29 | 1984-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6179275U JPS6179275U (en) | 1986-05-27 |
| JPH0450541Y2 true JPH0450541Y2 (en) | 1992-11-27 |
Family
ID=30720106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984162222U Expired JPH0450541Y2 (en) | 1984-10-29 | 1984-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0450541Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599565A (en) * | 1982-07-07 | 1984-01-18 | Nippon Radiator Co Ltd | Current sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5491276U (en) * | 1977-12-09 | 1979-06-28 |
-
1984
- 1984-10-29 JP JP1984162222U patent/JPH0450541Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS599565A (en) * | 1982-07-07 | 1984-01-18 | Nippon Radiator Co Ltd | Current sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6179275U (en) | 1986-05-27 |
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