JPH0226064Y2 - - Google Patents
Info
- Publication number
- JPH0226064Y2 JPH0226064Y2 JP1985132691U JP13269185U JPH0226064Y2 JP H0226064 Y2 JPH0226064 Y2 JP H0226064Y2 JP 1985132691 U JP1985132691 U JP 1985132691U JP 13269185 U JP13269185 U JP 13269185U JP H0226064 Y2 JPH0226064 Y2 JP H0226064Y2
- Authority
- JP
- Japan
- Prior art keywords
- clamp
- curved surface
- abutting end
- core
- convex curved
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案はクランプ式電流計に係り、さらに詳
しく言えば、磁電変換素子を有するクランプ式電
流計に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a clamp-type ammeter, and more specifically, to a clamp-type ammeter having a magnetoelectric conversion element.
この種のクランプ式電流計は、第６図に示され
ているように例えば半円状に分割された１対のク
ランプコア１，１を有し、これらのクランプコア
１，１はそれに取付けられているクランプホルダ
２，２を介して支軸３を中心として開閉可能に組
合せられる。そして、クランプコア１，１の支軸
３側に位置する一方の突合せ端面４，４間に磁気
変換素子（ホール素子）５が配置されるのである
が、従来においては、開閉側の突合せ端面６，６
は、通常、閉じられた際にそこに空隙が生じない
ような平坦面に形成されている。また、第７図お
よび第８図に示されているように、各クランプコ
ア１，１を構成している板厚の薄いコア単板１ａ
……の各々を交互に突出させて突合せ端面６，６
を噛合せ式にしたものも知られているが、この場
合においても個々の突合せ面６ａ……は平坦な面
に形成されている。
As shown in FIG. 6, this type of clamp-type ammeter has a pair of clamp cores 1, 1 divided into, for example, a semicircle, and these clamp cores 1, 1 are attached to it. They are combined so that they can be opened and closed about a support shaft 3 via clamp holders 2, 2. A magnetic transducer element (Hall element) 5 is arranged between the abutting end surfaces 4, 4 of the clamp cores 1, 1 located on the support shaft 3 side, but conventionally, the abutting end surface 6 on the opening/closing side ,6
is usually formed with a flat surface that does not leave a gap when closed. In addition, as shown in FIGS. 7 and 8, a thin core single plate 1a constituting each clamp core 1, 1
The abutting end surfaces 6, 6 are made to protrude alternately.
An interlocking type is also known, but even in this case, the individual abutting surfaces 6a... are formed as flat surfaces.
しかしながら、この構成によると、一方の突合
せ端面４，４間のギヤツプ幅を可変にして感度調
整や定格を変化させようとすると、他方の突合せ
端面６，６間に好ましくない空隙が生じてしまう
ため、所望の特性が得られないという欠点があ
る。 However, with this configuration, if one attempts to adjust the sensitivity or change the rating by varying the gap width between the abutting end surfaces 4, 4, an undesirable gap will be created between the abutting end surfaces 6, 6 on the other side. However, it has the disadvantage that desired characteristics cannot be obtained.
この考案は上記した従来の欠点に鑑みなされた
もので、その目的は、開閉側の突合せ端面間に空
隙を生じさせることなく磁気変換素子が配置され
るギヤツプ幅を可変にすることができるようにし
たクランプ式電流計を提供することにある。
This idea was created in view of the above-mentioned drawbacks of the conventional technology, and its purpose was to make it possible to vary the width of the gap in which the magnetic transducer is arranged without creating a gap between the abutting end faces on the opening and closing sides. The object of the present invention is to provide a clamp-type ammeter with a high level of accuracy.
以下、この考案を添付図面に示されている実施
例を参照しながら詳細に説明する。
Hereinafter, this invention will be described in detail with reference to embodiments shown in the accompanying drawings.
このクランプ式電流計は、第１図に示されてい
るように、例えば半円状に分割された１対のクラ
ンプコア１０Ａ，１０Ｂを備えている。このクラ
ンプコア１０Ａ，１０Ｂは、うず電流の発生を極
力抑えることから好ましくは第２図に示されてい
るようにそれぞれ板厚の薄いコア単板１０ａ，１
０ｂの積層体からなり、クランプホルダ１１Ａ，
１１Ｂを介して支軸１２を中心として開閉可能に
組合せられる。このクランプコア１０Ａ，１０Ｂ
において、その支軸１２側に位置する一方の突合
せ端面１３，１３間には所定幅のギヤツプＧが形
成され、そのギヤツプＧ内に磁電変換素子である
例えばホール素子１４が配置されるのであるが、
開閉側の他方の突合せ端面１５，１５は所定の曲
率をもつて画かれたほぼ半円状の凸曲面と、それ
に合致するほぼ半円状の凹曲面に形成されてい
る。すなわち、対向的に配置されたコア単板１０
a1と１０b1とを例にとつて説明すると、この実施
例においては第３図に示されているように、一方
のコア単板１０a1側が半円状の凸曲面１５ａに形
成され、他方のコア単板１０b1側にはそれに合致
する半円状の凹曲面１５ｂが形成されている。こ
の関係は隣接するコア単板１０a2と１０b2とでは
逆になり、コア単板１０a2側に凹曲面１５ｂが形
成され、コア単板１０b2側が凸曲面１５ａとな
る。このように、一方のクランプコア１０Ａにお
いては、例えば奇数番目のコア単板１０a1，１０
a3，１０a5，１０a7に凸曲面１５ａを形成し、偶
数番目のコア単板１０a2，１０a4，１０a6に凹曲
面１５ｂを形成するとともに、他方のクランプコ
ア１０Ｂにおいては、例えば奇数番目のコア単板
１０b1，１０b3，１０b5，１０b7に凹曲面１５ｂ
を形成し、偶数番目のコア単板１０b2，１０b4，
１０b6に凸曲面１５ａを形成することにより、各
凸曲面１５ａと凸曲面１５ｂとが密接に接触する
噛合い状態が得られる。 As shown in FIG. 1, this clamp-type ammeter includes a pair of clamp cores 10A and 10B divided into semicircular shapes, for example. These clamp cores 10A, 10B are preferably made of thin single core plates 10a, 1, respectively, as shown in FIG. 2, in order to suppress the generation of eddy current as much as possible.
0b, the clamp holder 11A,
They are combined so that they can be opened and closed about the support shaft 12 via the support shaft 11B. This clamp core 10A, 10B
A gap G of a predetermined width is formed between one abutting end surface 13 and 13 located on the support shaft 12 side, and a magnetoelectric transducer, such as a Hall element 14, is arranged within the gap G. ,
The other abutting end surfaces 15, 15 on the opening and closing side are formed into a substantially semicircular convex curved surface with a predetermined curvature and a substantially semicircular concave curved surface that matches the convex curved surface. That is, the core veneers 10 arranged oppositely
Taking a 1 and 10b 1 as an example, in this embodiment, as shown in FIG. 3, one core veneer 10a 1 side is formed into a semicircular convex curved surface 15a, and the other A matching semicircular concave curved surface 15b is formed on the core single plate 10b1 side. This relationship is reversed between adjacent core veneers 10a 2 and 10b 2 , with a concave curved surface 15b formed on the core veneer 10a 2 side and a convex curved surface 15a on the core veneer 10b 2 side. In this way, in one clamp core 10A, for example, the odd-numbered core single plates 10a 1 , 10
Convex curved surfaces 15a are formed on a 3 , 10a 5 , 10a 7 , concave curved surfaces 15 b are formed on even-numbered core single plates 10a 2 , 10a 4 , 10a 6 , and in the other clamp core 10B, for example, odd-numbered Concave curved surface 15b on the core veneer 10b 1 , 10b 3 , 10b 5 , 10b 7
, even-numbered core veneers 10b 2 , 10b 4 ,
By forming the convex curved surfaces 15a on 10b6 , a meshing state in which each convex curved surface 15a and the convex curved surface 15b are in close contact can be obtained.
このような構成によれば、第４図に示されてい
るように、例えば楕円状の支軸１２′をクランプ
ホルダー１１Ａ，１１Ｂ間に介在させて一方の突
合せ端面１３，１３間のギヤツプＧの幅を可変に
したものとしてもそれに伴つて開閉側の他方の突
合せ端面１５，１５間に空隙が生ずるようなこと
はない。換言すれば、この他方の突合せ端面１
５，１５の部分を中心としてその部分に空隙を生
ずることなく一方の突合せ端面１３，１３間のギ
ヤツプ幅を可変にすることができ、これにより、
感度調整や定格変更を任意に行ない所望の特性を
得ことができる。なお、この実施例とは異なり、
第５図に例示されているように、一方のクランプ
コア１０Ａ側の全体を凹曲面１５ｂとし、他方の
クランプコア１０Ｂ側の全体を凸曲面１５ａとし
てもよい。 According to such a configuration, as shown in FIG. 4, for example, an elliptical support shaft 12' is interposed between the clamp holders 11A and 11B, and the gap G between the abutting end surfaces 13 and 13 is Even if the width is made variable, no gap will be created between the other abutting end surfaces 15, 15 on the opening and closing sides. In other words, this other butt end surface 1
The gap width between the abutting end surfaces 13 and 13 can be made variable around the portions 5 and 15 without creating a gap therebetween.
Desired characteristics can be obtained by arbitrarily adjusting the sensitivity or changing the rating. Note that, unlike this example,
As illustrated in FIG. 5, the entirety of one clamp core 10A side may be a concave curved surface 15b, and the entirety of the other clamp core 10B side may be a convex curved surface 15a.
上記した実施例の説明から明らかなように、こ
の考案によれば、支軸１２を中心として開閉可能
に組合せられる１対のクランプコア１０Ａ，１０
Ｂを有し、その支軸１２側に位置する一方の突合
せ端面１３，１３間に磁電変換素子（ホール素
子）１４を配置してなるクランプ式電流計におい
て、開閉側の突合せ端面１５，１５のいずれか一
方を所定曲率のほぼ半円状をなす凸曲面１５ａと
し、他方をそれに合致するほぼ半円状の凹曲面１
５ｂとしたことにより、これらの凸曲面１５ａと
凹曲面１５ｂとの間に空隙を生じさせることな
く、上記一方の突合せ端面１３，１３間のギヤツ
プ幅を任意に調整することができる。したがつ
て、感度調整や定格変更等を行なうことができ、
所望する特性を有するクランプ式電流計が得ら
れ、その効果は顕著である。
As is clear from the description of the embodiments described above, according to this invention, a pair of clamp cores 10A, 10 are combined so as to be openable and closable about a support shaft 12.
In the clamp-type ammeter which has a magneto-electric transducer (Hall element) 14 between the abutting end surfaces 13, 13 located on the support shaft 12 side, the abutting end surfaces 15, 15 on the opening/closing side are Either one is an approximately semicircular convex curved surface 15a with a predetermined curvature, and the other is an approximately semicircular concave curved surface 1 that matches the convex curved surface 15a.
5b, the gap width between the abutting end surfaces 13, 13 can be arbitrarily adjusted without creating a gap between the convex curved surface 15a and the concave curved surface 15b. Therefore, it is possible to adjust the sensitivity and change the rating, etc.
A clamp-type ammeter with desired characteristics is obtained, and the effect is remarkable.
第１図はこの考案の一実施例を示す正面図、第
２図は第１図における開閉側突合せ端面における
横断面図、第３図は第２図に示されているコア単
板の突合せ端面構造を示す正面図、第４図は磁電
変換素子が配置されるギヤツプ幅を広げた状態を
示示す正面図、第５図はこの考案の変形例を示す
斜視図、第６図は従来例を示す正面図、第７図は
突合せ端部の他の従来例を示す部分正面図、第８
図は第７図の平面図である。
図中、１０Ａ，１０Ｂはクランプコア、１１
Ａ，１１Ｂはコアホルダ、１２，１２′は支軸、
１３は一方の突合せ端面、１５ａは凸曲面、１５
ｂは凹曲面である。
Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a cross-sectional view of the abutting end face on the opening/closing side in Fig. 1, and Fig. 3 is a butting end face of the core veneer shown in Fig. 2. FIG. 4 is a front view showing the structure, FIG. 4 is a front view showing a state where the gap width in which the magnetoelectric transducer is arranged is widened, FIG. FIG. 7 is a partial front view showing another conventional example of the abutting end; FIG.
The figure is a plan view of FIG. 7. In the figure, 10A and 10B are clamp cores, 11
A and 11B are core holders, 12 and 12' are support shafts,
13 is one abutting end surface, 15a is a convex curved surface, 15
b is a concave curved surface.
Claims (1)
のクランプコアを含み、それらの上記支軸側に位
置する一方の突合せ端面間に磁電変換素子を配置
してなるクランプ式電流計において、 上記各クランプコアの他方の突合せ端面は、所
定曲率のほぼ半円状をなす凸曲面とそれに合致す
るほぼ半円状をなす凹曲面に形成されていること
を特徴とするクランプ式電流計。[Claims for Utility Model Registration] A clamp comprising a pair of clamp cores that can be opened and closed together around a support shaft, and a magnetoelectric conversion element is arranged between one abutting end surface of the cores located on the support shaft side. type ammeter, wherein the other abutting end surface of each of the clamp cores is formed into a convex curved surface having a predetermined curvature and a substantially semicircular shape, and a concave curved surface having a substantially semicircular shape matching the convex curved surface. type ammeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985132691U JPH0226064Y2 (en) | 1985-08-30 | 1985-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985132691U JPH0226064Y2 (en) | 1985-08-30 | 1985-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6242070U JPS6242070U (en) | 1987-03-13 |
| JPH0226064Y2 true JPH0226064Y2 (en) | 1990-07-17 |
Family
ID=31032316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985132691U Expired JPH0226064Y2 (en) | 1985-08-30 | 1985-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0226064Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7034482B2 (en) * | 2018-06-08 | 2022-03-14 | 共立電気計器株式会社 | Clamp sensor and clamp meter |
| JP7034484B2 (en) * | 2018-08-06 | 2022-03-14 | 共立電気計器株式会社 | Clamp sensor and clamp meter |
-
1985
- 1985-08-30 JP JP1985132691U patent/JPH0226064Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6242070U (en) | 1987-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0226064Y2 (en) | ||
| US4811146A (en) | Composite magnetic head | |
| JPS6041477B2 (en) | Contactless magnetic potentiometer | |
| JPS5854859A (en) | Generator | |
| JPS55150126A (en) | Rotary magnetic head | |
| JPS632983Y2 (en) | ||
| JPS5850461Y2 (en) | Coil for identifying metal pieces | |
| JPS6349091Y2 (en) | ||
| JPS5938797Y2 (en) | Magnetic circuit of pick-up cartridge | |
| JPS5451812A (en) | Production of magnetic head | |
| JPS5644115A (en) | Vertical magnetization type magnetic head | |
| JPS6015303Y2 (en) | strip coil reactor | |
| KR930016951A (en) | Magnetic head | |
| SU576594A1 (en) | Method of manufacturing multitrack magnetic head | |
| SU629551A1 (en) | Magnetic head multitrack assembly | |
| JPS6321926Y2 (en) | ||
| JPH0119123Y2 (en) | ||
| JPS63157668U (en) | ||
| JPS6180613A (en) | Magneto-resistance effect type magnetic head | |
| JPH0416604U (en) | ||
| JPS6478409A (en) | In-line type magnetic head | |
| JPS6192158U (en) | ||
| JPH0585194U (en) | Magnetic circuit for speaker | |
| JPH0159903U (en) | ||
| JPS628609U (en) |