JPS599565A - Current sensor - Google Patents
Current sensorInfo
- Publication number
- JPS599565A JPS599565A JP57116895A JP11689582A JPS599565A JP S599565 A JPS599565 A JP S599565A JP 57116895 A JP57116895 A JP 57116895A JP 11689582 A JP11689582 A JP 11689582A JP S599565 A JPS599565 A JP S599565A
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- measured
- current line
- terminals
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
- G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
Abstract
Description
【発明の詳細な説明】 本発明は電流センサに関する。[Detailed description of the invention] TECHNICAL FIELD The present invention relates to a current sensor.
従来の電流センサとしては、各種ブレーカ、ヒユーズ、
電流通路に直列に接続する抵抗がある。Conventional current sensors include various breakers, fuses,
There is a resistor connected in series with the current path.
しかし、上記ブレーカにあってはその装置が大型・高価
であるという欠点があり、ヒユーズにあっては一旦作動
すると復帰させるのが困難であるという欠点がある。ま
た上記直列抵抗にあっては、被測定電流の値が大きい場
合、電圧降下が大きくなり、電源電圧を有効に利用する
ことができなくなるという欠点を有する３゜
本発明はこの」、うな従来の欠点にＡ１しくｔ、Ｃされ
１．−ものτ゛、被測定電流の１直が太きくｔＪ）でｂ
での後の通電に支障が無く、センリ全体の形状が比較的
小型であり、また電源電圧を有効に利用でさる電流レン
リを］１２供することを目的とする。However, the above-mentioned breaker has the disadvantage that the device is large and expensive, and the fuse has the disadvantage that once it is activated, it is difficult to reset it. Furthermore, the above-mentioned series resistor has the disadvantage that when the value of the current to be measured is large, the voltage drop becomes large and the power supply voltage cannot be used effectively. The defect is A1, C and 1. - thing τ゛, the first shift of the current to be measured is thick tJ) and b
The purpose of the present invention is to provide a current flow that does not cause any trouble in the subsequent energization, the overall shape of the sensor is relatively small, and the power supply voltage can be used effectively.
かかる目的を）を成するために、本発明に３１、れば、
その構成を、被測定電流を流づ電流ラインと、この電流
ラインを囲む強ｌｌ性体″−］ｉ′と、この強磁性体コ
アの有効空隙内に段【プらねたホール素子と、前記電流
ライン、強磁性体コア、ホール素子を固定しこれらを１
つの部品として一体に形成するモールド部材としたもの
である。In order to achieve this object), the present invention provides the following features:
Its configuration consists of a current line through which the current to be measured flows, a ferromagnetic material "-]i' surrounding this current line, and a Hall element placed in the effective gap of this ferromagnetic core. The current line, the ferromagnetic core, and the Hall element are fixed and
This is a molded member that is integrally formed as one component.
以下、誰何図面に示づ実施例に基づいて本発明を詳述１
」る。第１図（ユ本発明の原理を示１図である。ホール
累了１０を磁ＷＩＩ内に設【す、イのホール素子１０に
、■１界１−１と直角に電流■を流１と、磁界ト１ど電
流■の方向どの両方に直角の方向に、起電力Ｖが発１−
１する３、このように磁界と電流とによって、ホール素
子１０内（Ｊ起電力が発生１〕る現９！を、ホール電Ｊ
、４１ｊ 、ｌいい、このときの起電力Ｖをボール電圧
どいろ５，１−開磁界）−１と電流Ｉとボール電圧Ｖど
のプノ向１、トノ１ノミングのノｒ手の法則に従う乙の
である。、；１：た、このときに下記の関係が生じる。Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.
” Figure 1 shows the principle of the present invention. A Hall element 10 is installed in the magnetic WII, and a current 1 is passed through the Hall element 10 at right angles to the 1 field 1-1. An electromotive force V is generated in a direction perpendicular to both the magnetic field and the direction of the current.
1 to 3. In this way, due to the magnetic field and current, the current 9! inside the Hall element 10 (J electromotive force is generated 1) is changed to a Hall electric current J
, 41j , l Good, the electromotive force V at this time is the ball voltage 5, 1 - open magnetic field) - 1, the current I and the ball voltage V which follow the hand rule of 1, 1 and 1. be. ,;1:T, At this time, the following relationship occurs.
Ｖ −、−Ｋ ｌ−１ｆ 、、’ Ｔ
ここて、ＫＩＪ小−ル幸了１０にＪ、・）で定まる比例
定数であり、王はホール素子１０の厚さである。V − , −K l−1f , ,′ T is a proportionality constant determined by KIJ, −K l−1f , , .
１、Ｔ Ｊ３．１０ａは、電流ｌを１ｎるための電源で
あり、端子１５．１６を介して電流Ｉが流れるようにな
っている。＋ｌ： ＩＣＣホールミＶは端子１１．１２
に発生づるにうになっている。1, T J3.10a is a power supply for applying current l to 1n, and current I flows through terminal 15.16. +l: ICC hall mi V is terminal 11.12
It is becoming more and more common.
第２図１４１本発明の内部を示１斜視図である。電流ラ
イン３０は、被測定電流１を流でものであり、被測定回
路内に直列に接続されるものである。強磁性体−］ ：
ｉ’ ２ （１ｋｌ、 、電流ライン３０を囲むよ−う
に配設さね、電流ライン３０に流れる電流ｉにＪ： −
）で生じる田虫のＵ４に路を形成するものである。また
強磁性体−１７２０に１１、−１゛Ｐツブが段１ノらね
、このギｔ・ツブの有効空隙内に、前記ホール素子１０
が設（）られＣいる１、η４ｒわｌ）、−１７２０の有
効空隙内に１１［’ｌｌが’Ｒ，’ｌ ｉｆろ６１、う
じ４ム・）工いる。；１、ｋホール素子１０からＬｌ、
１１−ド線を介して、ボール電ＪｆＸｌを１９； ｊ、
ｌ 、）イ） ７．’、 ｔＶｌの娼：了１１，１２と
、電流１を流−４１３−めのＧ＆ｉｉ ｊ′１ Ｆ＞
、 １６ にが設（プられている。FIG. 2 141 is a perspective view showing the inside of the present invention. The current line 30 carries the current to be measured 1 and is connected in series within the circuit to be measured. Ferromagnetic material -]:
i' 2 (1 kl, ) is arranged so as to surround the current line 30, and the current i flowing through the current line 30 is J: -
), which forms a tract in U4 of the tapeworm. In addition, 11, -1゛P protrusions are arranged in the ferromagnetic material -1720 in one stage, and the Hall element 10 is arranged in the effective gap of this gear protrusion.
is set (), and 11['ll is 'R,'l if filter61, 4mm.] is drilled in the effective gap of -1720. ;1, from the k-hole element 10 to Ll,
11- through the wire, connect the ball electric current JfXl to 19; j,
l,)i)7. ', tVl prostitute: 11, 12 and current 1 -413-th G&ii j'1 F>
, 16 have been established.
第３図は本発明電流ｔ！ン−りの 実施例を示づ斜視図
τ′あって、第２図に示づらのを内部に右づるものであ
イ）。１−−ルド部ｉ：４ ／Ｉ Ｏに、■、′）τ、
第２図に示したしのを■］−ルドしである。このモール
ド部（Δ４０の外にＩよ、電流ライン３０、端子１１゜
１２．１５．１６が出ている。したがって第３図に承り
−もの仝休が、■−ルド部刊／ＩＯに。１、って、一体
向に形成され、１つの部品として存在（〕ている３゜
次にＬ記実施例の動作に゛ついてハ（２明７Ｊる。FIG. 3 shows the current t! of the present invention. There is a perspective view τ' showing an embodiment of the invention, and the parts shown in FIG. 2 are shown on the right inside. 1--old part i:4 /I O,■,')τ,
The one shown in FIG. 2 is replaced by ■]-. Outside of this mold part (Δ40), the current line 30 and the terminal 11, 12, 15, 16 are protruding.Therefore, the following is shown in Figure 3. , is formed in one direction and exists as one part.Next, regarding the operation of the embodiment described in L (see 2.7J).
まず、被測定電流ｉを流−で−うどする部位に、ギの電
流通路と直列に、電流ライン３０を接続１Ｊる。First, a current line 30 is connected in series with the current path 1J to a portion through which the current to be measured i flows.
−で１）で、電源１０ａを端子１５．１６に接続する３
゜」、た端子１１，１２を電圧測定部（Δに１名続ける
。- At 1), connect the power supply 10a to terminal 15.16 3
゜'', connect the terminals 11 and 12 to the voltage measuring section (one person follows ∆).
−３＝
この電圧測定部１４ 、ｂ １．、、て（、ｊ、所定電
圧以」了・・点灯覆るランノ゛が７とλられる１、１記
の操作は測定の度にｉ”Ｔ ’、７うので・は／、ｊ（
、、被測定物の５！Ｊ造１１冒こ、第３図に示づ本発明
°小流ｔ？ンリを相み込んであるらのと７Ｊる１゜
次に、電流］ｒン３０に被測定電流ｉが流４′＋るど、
での７１り流ｉに応じた強さの磁界１」が発生し、端子
１１，１２の間にホール電Ｆ「＼／が発生り−る１、こ
のＮ ｊ、ｔ Ｖが所定１直以Ｊ二の場合に、前記ラン
プが点灯Ｊる。、１、ｌ、−電流検出１段としては、う
〕７プ１′ｌ外のものでも３１、・（、般の電圧形を設
【）れば、被測定電流１の蛸をｉ！ｌ！杭的に表示で・
きる。-3=This voltage measuring section 14,b1. ,, then (, j, the specified voltage is exceeded)...The run plate that lights up is 7 and λ is 7. The operations described in 1.
,,Object to be measured 5! J-Building 11, the present invention shown in Figure 3 is a small stream. Then, the current to be measured i flows through the current]r 4' + R,
A magnetic field 1' with a strength corresponding to the current i at 71 is generated, and a Hall electric field F'\/ is generated between the terminals 11 and 12. In the case of J2, the lamp lights up.,1,l,- As one stage of current detection, even if it is other than 7p1'l, a general voltage type can be set. If so, the octopus of the measured current 1 can be displayed like an i!l! pile.
Wear.
Ｌ開電流レン１１は、第３図に示すように、強磁性体」
ア２０及びホール索子１０が小型７あるから、従来のブ
１ノーｈ等のように大型になることがｈ ＜ 、電流ｌ
？ンリ全体の形状を小）りにづろことができる。また被
測定電流が流れる回路と直列に接続されるのは、電流ラ
イン３０であり、こ４′１に人いり−１ご線を使用１れ
ば、−てこにお（プる電Ｉ丁降下は非常に小さいの？−
；’Ｉｆ（視ｊｌることがてさ、電源の４−
電圧を有効に刊用了゛ぎる。さらに、ヒーｌ−ズを使用
【、でいたベーらば切れるであろう程度の人、＼’ イ
ｇ ’＋ｉ＾流を流しても、１記電流ゼンリ一番、１切
れることが無いので、−その後の通電に支障が無い。As shown in FIG. 3, the L open current lens 11 is made of a ferromagnetic material.
Since the A 20 and the Hall cable 10 are small 7, it is difficult to make them as large as the conventional B1NO h, etc., because h<, current l
? The overall shape of the container can be made smaller. In addition, the current line 30 is connected in series with the circuit through which the current to be measured flows. Is it very small?
;'If (you can't see it, the 4-voltage of the power supply is too high for effective use.Furthermore, if you were to use heels, it would probably burn out.\ Even if the 'Ig'+i^ current is applied, the current will not break at the first point, so there will be no problem with the subsequent current flow.
モールド部材／ＩＯにＪ、って、強磁性体Ｔ１ア２０に
対しＣボール素子１０、電流ライン３０を固定１〕であ
るので、被測定電流ｉが一定でｄうれば、ホール索子１
０が受りる磁界１」の強さも一定となり、測定法Ｋが生
じ＜ｒい。つまり、ｔ−ルド部４Δ４０を設りない場合
には、ホール素子１０の取付ｔ−ｊ位首にＪ、−〉て測
定値がその都度変化して不正確である場合があるが、」
−記実施例のようにモールドするようにしであるので、
−口、でのボール素子１０を正しく取付ＩＪＣいる限り
、測定誤差が生じることがない。Since the mold member/IO is J, the C ball element 10 and the current line 30 are fixed to the ferromagnetic material T1A 20, if the measured current i is constant and d is constant, the Hall cable 1
The strength of the magnetic field 1'' that 0 receives also becomes constant, and measurement method K occurs. In other words, if the t-led portion 4Δ40 is not provided, the measured value may change and be inaccurate each time the Hall element 10 is mounted at the t-j position.
-Since it is molded as in the above example,
- As long as the ball element 10 is correctly attached to the IJC, no measurement error will occur.
また上記実施例において、強磁↑９体＝１ア２０の形状
をコの字状にしであるが、たとえばＣ型のように他の形
状て・あってもよい１ノ、モールド部材４０の形状も必
要に応じて変化させてもよい。Further, in the above embodiment, the shape of the ferromagnetic ↑9 body = 1A 20 is made into a U-shape. may also be changed as necessary.
１ス土μｍ明し−（さたＪ、うに、本発明によれば、被
測定電流の餡が人さくなってもその後の通電に支障が無
・く、電流１ごンリ全体の形状が比較的小型で【（リリ
、」、！、二電源宙１１をイｊ’ ２１１じ利用でさる
という効宋がある。According to the present invention, even if the thickness of the current to be measured becomes small, there is no problem with subsequent energization, and the overall shape of the current is compared. It is small in size and has the effect of using the dual power supply space 11 at the same time.
第１図１４１２本発明の原ｌｌｐ図、第２図は本発明の
一実施例の内部を示１す斜視図、第３図Ｇ、１、本発明
の一実施例を示刀ｊ：′目す図て゛あイ）。
１０・・・ボール未了、 １１，１２．１ｆｉ、１６・
・・端子、 ２０・・・強磁ｆ！１． ＋４ｉ ：］
ア、 ３０・・・電流ライン、 ４０・・・■−ルド部
材１゜
実用Ｉｉ案ｐ ｔ、ｘ出願人 ［−１木ラヂ了−クー株
テ（会ネ１７−
第１図Fig. 1 is an original 1412 diagram of the present invention, Fig. 2 is a perspective view showing the interior of an embodiment of the present invention, Fig. 3 is a perspective view showing an embodiment of the present invention; (See Figure 1). 10...Ball not completed, 11, 12.1fi, 16.
...Terminal, 20...Ferromagnetic f! 1. +4i:]
A, 30...Current line, 40...■-Led member 1゜Practical II plan pt, x Applicant
Claims (1)
強磁性体コアと、この強磁性体コアの有効空隙内に設け
られたホール素子と、前記電流ライン、強磁性体コア、
ホール素子を固定しこれらを１つの部品として一体に形
成するモールド部材とを有することを特徴とする電流セ
ンサ。A current line through which a current to be measured flows, a ferromagnetic core surrounding the current line, a Hall element provided within an effective gap of the ferromagnetic core, the current line, the ferromagnetic core,
A current sensor comprising: a mold member for fixing a Hall element and integrally forming these as one component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57116895A JPS599565A (en) | 1982-07-07 | 1982-07-07 | Current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57116895A JPS599565A (en) | 1982-07-07 | 1982-07-07 | Current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS599565A true JPS599565A (en) | 1984-01-18 |
Family
ID=14698289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57116895A Pending JPS599565A (en) | 1982-07-07 | 1982-07-07 | Current sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599565A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6179275U (en) * | 1984-10-29 | 1986-05-27 | ||
| JPS63159769U (en) * | 1987-04-09 | 1988-10-19 | ||
| WO2003056347A1 (en) * | 2001-12-27 | 2003-07-10 | Matsushita Electric Industrial Co., Ltd. | Current sensor |
| JP2013160668A (en) * | 2012-02-07 | 2013-08-19 | Tokai Rika Co Ltd | Core holder and current sensor |
-
1982
- 1982-07-07 JP JP57116895A patent/JPS599565A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6179275U (en) * | 1984-10-29 | 1986-05-27 | ||
| JPH0450541Y2 (en) * | 1984-10-29 | 1992-11-27 | ||
| JPS63159769U (en) * | 1987-04-09 | 1988-10-19 | ||
| JPH0512772Y2 (en) * | 1987-04-09 | 1993-04-02 | ||
| WO2003056347A1 (en) * | 2001-12-27 | 2003-07-10 | Matsushita Electric Industrial Co., Ltd. | Current sensor |
| JPWO2003056347A1 (en) * | 2001-12-27 | 2005-05-12 | 松下電器産業株式会社 | Current detector |
| JP4507599B2 (en) * | 2001-12-27 | 2010-07-21 | パナソニック株式会社 | Current detector |
| JP2013160668A (en) * | 2012-02-07 | 2013-08-19 | Tokai Rika Co Ltd | Core holder and current sensor |
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