JPH07140179A - Current/voltage detector - Google Patents
Current/voltage detectorInfo
- Publication number
- JPH07140179A JPH07140179A JP5283815A JP28381593A JPH07140179A JP H07140179 A JPH07140179 A JP H07140179A JP 5283815 A JP5283815 A JP 5283815A JP 28381593 A JP28381593 A JP 28381593A JP H07140179 A JPH07140179 A JP H07140179A
- Authority
- JP
- Japan
- Prior art keywords
- current
- main housing
- conductors
- connector
- conductor
- 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.)
- Granted
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、例えば車両の分岐接続
箱内等で、導体の電流と電圧とを検出する電流・電圧検
出装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current / voltage detecting device for detecting the current and voltage of a conductor, for example, in a vehicle junction box.
【0002】[0002]
【従来の技術】例えば、電気自動車のようなバッテリを
動力源とする車両では、正常な動作を確保するため、バ
ッテリの状態を監視することが不可欠である。そのため
の一つとして、バッテリ異常による異常な電圧降下、電
圧上昇を測定する必要がある。特に、鉛バッテリでは、
バッテリ電圧がある程度以下(終止電圧という)になる
まで放電させてしまうと、バッテリの寿命が極端に短く
なると言われているので、バッテリ電圧を常に監視し、
それ以前に充電する必要がある。バッテリの充電は、通
常、定電流で行うが、充電完了はバッテリ電圧が定電圧
になった時点で判断するため、バッテリ電圧の測定が必
要である。また、電気自動車のようなバッテリを動力源
とする車両では、走行可能距離を判断するため、バッテ
リの残存容量を知ることが不可欠である。そのための手
段として、消費電流を累積し、初期容量から差し引いて
残存容量を求める方法がある。またバッテリ交換時に
は、初期容量がわからないため、バッテリ電圧を測定
し、初期容量を測定する必要がある。2. Description of the Related Art In a vehicle powered by a battery such as an electric vehicle, it is essential to monitor the state of the battery in order to ensure normal operation. For this purpose, it is necessary to measure abnormal voltage drop and voltage rise due to battery abnormality. Especially with lead batteries,
It is said that if the battery voltage is discharged to a certain level or less (termed cutoff voltage), the battery life will be extremely shortened. Therefore, always monitor the battery voltage,
It needs to be charged before that. The battery is usually charged with a constant current, but since the completion of charging is determined when the battery voltage becomes a constant voltage, it is necessary to measure the battery voltage. Further, in a vehicle such as an electric vehicle that uses a battery as a power source, it is indispensable to know the remaining capacity of the battery in order to determine the travelable distance. As a means for this, there is a method of accumulating consumption current and subtracting it from the initial capacity to obtain the remaining capacity. When the battery is replaced, the initial capacity is unknown, so it is necessary to measure the battery voltage to measure the initial capacity.
【0003】図6及び図7は、従来の電流検出装置の構
成を示したものである。図示のように、該電流検出装置
は、矩形の主ハウジング1を有し、該主ハウジング1内
の底部には筒体2が上下方向に立設され、該筒体2内に
は主ハウジング1を貫通する矩形の貫通孔3が設けられ
ている。該貫通孔3には被測定電流が流れるバスバーよ
りなる貫通導体4が主ハウジング1の下から上向きに貫
通され、その上端は主ハウジング1の上方に突出されて
いる。主ハウジング1の上方に突出された貫通導体4の
上端には、別のバスバーよりなる導体5の端部が重ね合
わされてワッシヤー6,7を介して特殊な頭部を持つボ
ルト8とナット9で締結されている。主ハウジング1内
の筒体2の外周にはC字状の磁気コア10が配置され、
該C字状の磁気コア10の空隙部10aにはホール素子
よりなる磁気電気変換素子11が配置されている。該磁
気電気変換素子11は、主ハウジング1内の回路基板1
2に立設されている。該回路基板12には、増幅回路1
3等が搭載され、更に検出出力を取り出したり増幅回路
13に給電したりするコネクタ14が設けられている。
図示しないが、磁気電気変換素子11より増幅回路13
を介してコネクタ14に至るプリント配線が設けられて
いる。なお、15は磁気コア10を仮止めする仮止め部
材である。これら磁気コア10,磁気電気変換素子1
1,回路基板12,増幅回路13,b,コネクタ14,
仮止め部材15等により非接触の電流検出ユニット16
が構成されている。6 and 7 show the configuration of a conventional current detecting device. As shown in the figure, the current detection device has a rectangular main housing 1, a cylinder 2 is vertically installed at a bottom portion of the main housing 1, and the main housing 1 is provided in the cylinder 2. A rectangular through hole 3 penetrating through is provided. A through conductor 4 formed of a bus bar through which a current to be measured flows is penetrated through the through hole 3 from below the main housing 1 upward, and an upper end thereof projects above the main housing 1. On the upper end of the penetrating conductor 4 protruding above the main housing 1, the end of the conductor 5 made of another bus bar is superposed, and a bolt 8 and a nut 9 having a special head are provided via washers 6 and 7. It has been concluded. A C-shaped magnetic core 10 is arranged on the outer periphery of the cylindrical body 2 in the main housing 1,
A magnetoelectric conversion element 11 composed of a Hall element is arranged in the void portion 10a of the C-shaped magnetic core 10. The magneto-electric conversion element 11 includes a circuit board 1 in the main housing 1.
It is set up in 2. The circuit board 12 includes an amplifier circuit 1
3 and the like are mounted, and a connector 14 for taking out a detection output and supplying power to the amplifier circuit 13 is further provided.
Although not shown, the magneto-electric conversion element 11 causes the amplifier circuit 13 to
A printed wiring is provided to reach the connector 14 via the. Reference numeral 15 is a temporary fixing member for temporarily fixing the magnetic core 10. These magnetic core 10 and magnetoelectric conversion element 1
1, circuit board 12, amplifier circuit 13, b, connector 14,
Non-contact current detection unit 16 by temporary fixing member 15 and the like
Is configured.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の電流検出装置では、貫通導体4と別の導体5
との連結に、頭部に放射状に7状の溝17を持つ特殊な
ボルト8を用いているので、特殊なドライバーを用いな
いと締結作業が行えない問題点があった。ボルト8とナ
ット9による締結作業では、ボルト8又はナット9を何
度か回す作業が必要になり、締結に手間がかかる問題点
があった。更に、貫通導体にもボルト8を通すための孔
4aをあける作業が必要になり、工数がかかる問題点が
あった。However, in such a conventional current detection device, the through conductor 4 and the other conductor 5 are provided.
Since a special bolt 8 having a radial groove 17 in the head is used for connection with the head, the fastening work cannot be performed unless a special screwdriver is used. In the fastening work with the bolt 8 and the nut 9, it is necessary to turn the bolt 8 or the nut 9 several times, and there is a problem that the fastening is troublesome. Further, there is a problem in that it is necessary to make a hole 4a for passing the bolt 8 in the through conductor, which requires a lot of man-hours.
【0005】また、従来の電流検出装置では、電流しか
検出できず、電圧も検出する必要がある場合には電圧検
出装置を別に設けなければならず、手間とコストが更に
かかる問題点があった。Further, in the conventional current detecting device, when only the current can be detected and the voltage also needs to be detected, a separate voltage detecting device must be provided, which is more troublesome and costly. .
【0006】本発明の目的は、電流と電圧を共に検出で
き、しかも貫通導体の接続が特殊な工具を用いずに、簡
単に能率よく行える電流・電圧検出装置を提供すること
にある。An object of the present invention is to provide a current / voltage detecting device which can detect both current and voltage and can easily and efficiently connect through conductors without using a special tool.
【0007】[0007]
【課題を解決するための手段】上述した目的を達成する
この発明の構成を説明すると、次の通りである。The structure of the present invention which achieves the above-mentioned object will be described as follows.
【0008】請求項1に記載の電流・電圧検出装置は、
正,負の電流が流れる第1,第2の貫通導体が主ハウジ
ングを貫通して設けられ、前記主ハウジング内には前記
第1,第2の貫通導体の一方に流れる被測定電流を検出
する電流検出ユニットと前記第1,第2の貫通導体間の
電位差を検出するための電圧検出ユニットとが設けら
れ、前記第1,第2の貫通導体が貫通する前記主ハウジ
ングの両側の部分にはコネクタハウジングがそれぞれ設
けられ、これらコネクタハウジング内に前記第1,第2
の貫通導体の端部がコネクタ端子として配置され、これ
らコネクタハウジングとその中のコネクタ端子とにより
前記第1,第2の貫通導体を相手導体に接続する各コネ
クタが構成されていることを特徴とする。The current / voltage detector according to claim 1 is
First and second through conductors, through which positive and negative currents flow, are provided so as to penetrate the main housing, and a measured current flowing through one of the first and second through conductors is detected in the main housing. A current detection unit and a voltage detection unit for detecting a potential difference between the first and second penetrating conductors are provided, and parts on both sides of the main housing through which the first and second penetrating conductors penetrate are provided. Connector housings are respectively provided, and the first and second connector housings are provided in the connector housings.
End portions of the penetrating conductors are arranged as connector terminals, and the connector housing and the connector terminals therein form respective connectors for connecting the first and second penetrating conductors to the mating conductors. To do.
【0009】請求項2に記載の電流・電圧検出装置は、
被測定電流が流れる貫通導体が主ハウジングを貫通して
設けられ、前記主ハウジング内には前記貫通導体に流れ
る被測定電流を、該被測定電流によって発生する磁束を
通す磁気コアと該磁気コア内の磁束を電気信号に変換す
る磁気電気変換素子と該電気信号が順次大きくなるよう
に増幅する増幅回路とこの順次大きくなる電気信号が通
されて前記磁気コアに前記磁束とは逆向きの磁束を両磁
束が平衡するまで発生せる帰還コイルとを用いたゼロフ
ラックス方式の電流検出ユニットが設けられ、前記主ハ
ウジング内には更に前記磁気コアに巻回されて前記貫通
導体に流れる被測定電流に基づく電圧を検出する1次巻
線とこれに直列接続された抵抗とを有する電圧検出ユニ
ットが設けられ、前記貫通導体が貫通する前記主ハウジ
ングの両側の部分にはコネクタハウジングがそれぞれ設
けられ、これらコネクタハウジング内に前記貫通導体の
端部がコネクタ端子として配置され、これらコネクタハ
ウジングとその中のコネクタ端子とにより前記貫通導体
を相手導体に接続する各コネクタが構成されていること
を特徴とする。According to another aspect of the current / voltage detecting device,
A through conductor through which a current to be measured flows is provided so as to penetrate through the main housing, and in the main housing, a magnetic core through which a magnetic flux generated by the current to be measured passes a current to be measured flowing through the through conductor and the inside of the magnetic core. Magnetic-electric conversion element for converting the magnetic flux of the magnetic flux into an electric signal, an amplifying circuit for amplifying the electric signal so that the electric signal sequentially increases, and the sequentially increasing electric signal is passed to generate a magnetic flux in the opposite direction to the magnetic flux to the magnetic core. A zero flux type current detection unit using a feedback coil that generates until both magnetic fluxes are balanced is provided, and based on the measured current that is further wound around the magnetic core and flows through the through conductor in the main housing. A voltage detection unit having a primary winding for detecting a voltage and a resistor connected in series to the primary winding is provided, and portions on both sides of the main housing through which the through conductor passes. Are provided with respective connector housings, and the end portions of the through conductors are arranged as connector terminals in the connector housings, and the connector housing and the connector terminals therein form the respective connectors for connecting the through conductors to the mating conductors. It is characterized by being.
【0010】[0010]
【作用】請求項1,2に記載の電流・電圧検出装置の構
造にすると、1つの装置で電流と電圧と共に検出でき
る。このため、装置が1つになって、コストの低減と接
続作業工数の低下とが図れる。また貫通導体は、コネク
タ接続で相手導体に接続できる。このため、貫通導体の
接続を、従来のように特殊な工具を用いずに、簡単に能
率よく行える。特に、請求項2に記載の電流・電圧検出
装置の構造にすると、1つの貫通導体から電流と電圧を
検出でき、請求項1に記載の電流・電圧検出装置よりも
更に構造を簡略化することができる。With the structure of the current / voltage detecting device according to the first and second aspects, it is possible to detect the current and voltage together with one device. Therefore, the number of devices is reduced to one, and the cost can be reduced and the connection work man-hour can be reduced. The through conductor can be connected to the mating conductor by connector connection. Therefore, it is possible to easily and efficiently connect the through conductors without using a special tool as in the conventional case. Particularly, when the structure of the current / voltage detecting device according to claim 2 is adopted, the current and the voltage can be detected from one through conductor, and the structure can be further simplified as compared with the current / voltage detecting device according to claim 1. You can
【0011】[0011]
【実施例】以下、この発明の実施例を図を参照して詳細
に説明する。なお、前述した図6及び図7と対応する部
材には同一符号を付けて示している。図1乃至図3は、
この発明に係る電流・電圧検出装置の一実施例を示した
ものである。この実施例の電流・電圧検出装置18は、
正,負の電流が流れる第1,第2の貫通導体4,19が
互いに平行する状態で主ハウジング1を貫通して設けら
れている。これら第1,第2の貫通導体4,19の上に
回路基板12が配置されている。これら第1,第2の貫
通導体4,19の長手方向の途中には、回路基板12と
電気的に接続するための接続突起20,21が設けられ
ている。Embodiments of the present invention will now be described in detail with reference to the drawings. The members corresponding to those in FIGS. 6 and 7 described above are designated by the same reference numerals. 1 to 3 are
1 shows an embodiment of a current / voltage detecting device according to the present invention. The current / voltage detection device 18 of this embodiment is
First and second penetrating conductors 4, 19 through which positive and negative currents flow are provided so as to penetrate the main housing 1 in a state of being parallel to each other. The circuit board 12 is arranged on the first and second through conductors 4 and 19. Connection protrusions 20 and 21 for electrically connecting to the circuit board 12 are provided midway in the longitudinal direction of the first and second through conductors 4 and 19.
【0012】第1の貫通導体4に対応して回路基板12
には、ホール素子よりなる磁気電気変換素子11が搭載
されている。C字状の磁気コア10は、その空隙部10
aにホール素子よりなる磁気電気変換素子11が存在す
るように、該空隙部10aに磁気電気変換素子11が存
在する回路基板12を挿入した配置となっている。ま
た、該回路基板12には、増幅回路13が搭載され、更
に検出出力を取り出したり増幅回路13に給電したりす
るコネクタ14が設けられている。図示しないが、磁気
電気変換素子11より増幅回路13を介してコネクタ1
4に至るプリント配線が設けられている。これら磁気コ
ア10,磁気電気変換素子11,回路基板12,増幅回
路13等により非接触の電流検出ユニット16が構成さ
れている。また、回路基板12には、第1,第2の貫通
導体4,19の接続突起20,21間の電位差を検出す
るための電圧検出回路22が搭載されている。前述した
コネクタ14は、電圧検出回路22の検出出力を取り出
したり、該電圧検出回路22に給電したりするコネクタ
を兼ねている。これら接続突起20,21や電圧検出回
路22等により電圧検出ユニット23が構成されてい
る。The circuit board 12 corresponding to the first through conductor 4
A magneto-electric conversion element 11 including a Hall element is mounted on the. The C-shaped magnetic core 10 has a space 10
The circuit board 12 having the magneto-electric conversion element 11 is inserted in the space 10a so that the magneto-electric conversion element 11 made of a Hall element exists in a. Further, the circuit board 12 is provided with an amplifier circuit 13, and is further provided with a connector 14 for taking out a detection output and supplying power to the amplifier circuit 13. Although not shown, the connector 1 is connected from the magnetoelectric conversion element 11 via the amplifier circuit 13.
Printed wirings up to 4 are provided. The magnetic core 10, the magnetoelectric conversion element 11, the circuit board 12, the amplifier circuit 13 and the like constitute a non-contact current detection unit 16. Further, the circuit board 12 is equipped with a voltage detection circuit 22 for detecting a potential difference between the connection protrusions 20 and 21 of the first and second through conductors 4 and 19. The connector 14 described above also serves as a connector for taking out the detection output of the voltage detection circuit 22 and supplying power to the voltage detection circuit 22. The connection protrusions 20, 21 and the voltage detection circuit 22 form a voltage detection unit 23.
【0013】第1,第2の貫通導体4,19が貫通する
主ハウジング1の前後の面には、第1の貫通導体4のコ
ネクタハウジング24,25と、第2の貫通導体19の
コネクタハウジング26,27とがそれぞれ設けられて
いる。コネクタハウジング24,25内には、第1の貫
通導体4の両端がコネクタ端子4a,4bとして配置さ
れている。コネクタハウジング26,27内には、第2
の貫通導体19の両端がコネクタ端子19a,19bと
して配置されている。これらコネクタハウジング24,
25と、その中のコネクタ端子4a,4bとにより、第
1の貫通導体4を他の導体に接続するコネクタ28,2
9が構成されている。また、コネクタハウジング26,
27と、その中のコネクタ端子19a,19bとによ
り、第2の貫通導体19を他の導体に接続するコネクタ
30,31が構成されている。コネクタ14は主ハウジ
ング1の上面に露出されている。Connector housings 24 and 25 for the first through conductor 4 and a connector housing for the second through conductor 19 are provided on the front and rear surfaces of the main housing 1 through which the first and second through conductors 4 and 19 penetrate. 26 and 27 are provided, respectively. Both ends of the first penetrating conductor 4 are arranged as connector terminals 4a and 4b in the connector housings 24 and 25, respectively. In the connector housings 26 and 27, the second
Both ends of the through conductor 19 are arranged as connector terminals 19a and 19b. These connector housings 24,
25 and the connector terminals 4a and 4b therein, connectors 28 and 2 for connecting the first through conductor 4 to other conductors.
9 are configured. In addition, the connector housing 26,
27 and the connector terminals 19a and 19b therein form connectors 30 and 31 for connecting the second through conductor 19 to other conductors. The connector 14 is exposed on the upper surface of the main housing 1.
【0014】従って、このような電流・電圧検出装置1
8のコネクタ28,29,30,31を用いることによ
り、該電流・電圧検出装置18を図示しない分岐接続箱
のコネクタに簡単に能率よく接続できる。従って、従来
のように特殊な工具を用いずに接続作業を行うことがで
きる。なお、主ハウジング1に設けるコネクタ28,2
9,30,31の位置は、上記実施例に限定されるもの
ではなく、主ハウジング1の上面,下面等、必要に応じ
て主ハウジング1のいずれの位置に設けることもでき
る。また、非接触の電流検出ユニット16は、前述した
もの以外に、例えば、図4に示すようなゼロフラックス
方式の回路で構成されているものであってもよい。この
ゼロフラックス方式の電流検出ユニット16は、バスバ
ーよりなる貫通導体4の外周にC字状の磁気コア10が
配置され、該C字状の磁気コア10の空隙部10aには
ホール素子よりなる磁気電気変換素子11が配置され、
該貫通導体4の両端には相手導体と接続するためのコネ
クタのコネクタ端子4a,4bが設けられている点は、
図1〜図3に示す実施例と同様である。Therefore, such a current / voltage detecting device 1
By using the connectors 28, 29, 30, 31 of No. 8, the current / voltage detection device 18 can be easily and efficiently connected to the connector of the branch connection box (not shown). Therefore, the connection work can be performed without using a special tool as in the conventional case. The connectors 28, 2 provided on the main housing 1
The positions of 9, 30, and 31 are not limited to those in the above-described embodiment, but may be provided at any position of the main housing 1 such as the upper surface and the lower surface of the main housing 1 as required. Further, the non-contact current detection unit 16 may be configured by, for example, a zero-flux type circuit as shown in FIG. In this zero-flux type current detection unit 16, a C-shaped magnetic core 10 is arranged on the outer periphery of a through conductor 4 formed of a bus bar, and a magnetic space formed by a Hall element is provided in a void portion 10a of the C-shaped magnetic core 10. The electric conversion element 11 is arranged,
Connector terminals 4a and 4b of a connector for connecting to a mating conductor are provided at both ends of the through conductor 4,
This is similar to the embodiment shown in FIGS.
【0015】このゼロフラックス方式の電流検出ユニッ
ト16は、磁気コア10を貫通する貫通導体4に流れる
被測定電流によって発生する磁束を、該磁気コア10に
よって吸収し、該磁気コア10内の磁束をホール素子よ
りなる磁気電気変換素子11によって電圧信号に変換
し、この電圧信号を増幅回路32で増幅し、該増幅回路
32の増幅出力を磁気コア10に巻かれた帰還コイル3
3に流すことにより、被測定電流によって磁気コア10
内を通る磁束の向きと逆方向の向きの磁束を発生させ、
磁気コア10,磁気電気変換素子11,増幅回路32及
び帰還コイル33からなる帰還回路の利得を十分大きく
することにより被測定電流によって発生する磁束と磁気
電気変換素子11によって帰還コイル33から発生する
磁束とを平衡させ、これら磁束の平衡時に、即ちゼロク
ロス時に、帰還コイル33に流れる電流を測定器34で
測定することによって、被測定電流を測定する構造にな
っている。The zero-flux type current detection unit 16 absorbs the magnetic flux generated by the measured current flowing through the penetrating conductor 4 penetrating the magnetic core 10 by the magnetic core 10, and the magnetic flux inside the magnetic core 10 is absorbed. The magneto-electric conversion element 11 formed of a Hall element converts the voltage signal into a voltage signal, the amplification circuit 32 amplifies the voltage signal, and the amplified output of the amplification circuit 32 is wound around the magnetic core 10 in the feedback coil 3.
3 and the magnetic core 10
Generate a magnetic flux in the direction opposite to the direction of the magnetic flux passing through the inside,
The magnetic flux generated by the measured current and the magnetic flux generated by the feedback coil 33 by the magnetoelectric conversion element 11 by sufficiently increasing the gain of the feedback circuit including the magnetic core 10, the magnetoelectric conversion element 11, the amplifier circuit 32, and the feedback coil 33. Are balanced, and the current flowing through the feedback coil 33 is measured by the measuring device 34 when the magnetic fluxes are balanced, that is, at the time of zero crossing, and the current to be measured is measured.
【0016】このような構造でも、コネクタ接続によ
り、図1〜図3に示す実施例と同様の効果を得ることが
できる。また、電圧検出回路22は、通常の回路の他
に、図5に示すようにゼロフラックス方式の回路を利用
し、既知抵抗35a,35bを磁気コア10の1次巻線
36に接続し、この1次巻線36に流れる電流を電圧に
変換する構造になっている。なお、このゼロフラックス
方式の回路は、図4と対応する部分に同一符号を付けて
示している。特に、このような構造の電流・電圧検出装
置を用いると、1つの貫通導体4から電流と電圧を検出
でき、図1〜図3に示す電流・電圧検出装置よりも更に
構造を簡略化することができる。Even with such a structure, the same effect as that of the embodiment shown in FIGS. 1 to 3 can be obtained by connecting the connector. In addition to the normal circuit, the voltage detection circuit 22 uses a zero-flux type circuit as shown in FIG. 5 to connect the known resistors 35a and 35b to the primary winding 36 of the magnetic core 10. It has a structure for converting the current flowing through the primary winding 36 into a voltage. In this zero-flux circuit, the parts corresponding to those in FIG. 4 are designated by the same reference numerals. In particular, when the current / voltage detecting device having such a structure is used, the current and voltage can be detected from one through conductor 4, and the structure can be further simplified as compared with the current / voltage detecting device shown in FIGS. You can
【0017】[0017]
【発明の効果】以上説明したようにこの発明の電流・電
圧検出装置によれば、下記のような効果を得ることがで
きる。As described above, according to the current / voltage detecting device of the present invention, the following effects can be obtained.
【0018】請求項1,2に記載の電流・電圧検出装置
によれば、1つの装置で電流と電圧とを共に検出するこ
とができ、このため装置が1つになって、コストの低減
と接続作業工数の低下とを図ることができる。According to the current / voltage detection device of the first and second aspects, one device can detect both the current and the voltage. Therefore, the number of devices is one, and the cost is reduced. It is possible to reduce the number of connection work steps.
【0019】また貫通導体は、コネクタ接続で相手導体
に接続する構造になっているので、貫通導体の接続を、
従来のように特殊な工具を用いずに、簡単に能率よく行
うことができるる。Since the through conductor has a structure in which it is connected to the mating conductor by connector connection, the connection of the through conductor is
It can be performed easily and efficiently without using a special tool as in the past.
【0020】特に、請求項2に記載の電流・電圧検出装
置によれば、1つの貫通導体から電流と電圧を検出で
き、請求項1に記載の電流・電圧検出装置よりも更に構
造を簡略化することができる。Particularly, according to the current / voltage detecting device of the second aspect, the current and the voltage can be detected from one through conductor, and the structure is further simplified as compared with the current / voltage detecting device of the first aspect. can do.
【図1】この発明の電流検出装置の一実施例の内部構成
を示す分解斜視図である。FIG. 1 is an exploded perspective view showing an internal configuration of an embodiment of a current detecting device of the present invention.
【図2】この発明の電流検出装置の一実施例の内部構成
を示す斜視図である。FIG. 2 is a perspective view showing the internal configuration of an embodiment of the current detection device of the present invention.
【図3】この発明の電流検出装置の一実施例の外観を示
す斜視図である。FIG. 3 is a perspective view showing the external appearance of an embodiment of the current detection device of the present invention.
【図4】この発明で用いる電流検出ユニットの他の例を
示す回路図である。FIG. 4 is a circuit diagram showing another example of the current detection unit used in the present invention.
【図5】この発明で用いる電流検出ユニットと電圧検出
ユニットとの他の例を示す回路図である。FIG. 5 is a circuit diagram showing another example of a current detection unit and a voltage detection unit used in the present invention.
【図6】従来の電流検出装置の斜視図である。FIG. 6 is a perspective view of a conventional current detection device.
【図7】図6に示す従来の電流検出装置の分解斜視図で
ある。FIG. 7 is an exploded perspective view of the conventional current detection device shown in FIG.
1………………………………………………………主ハウ
ジング 4………………………………………………………貫通導
体 4a,4b……………………………………………コネク
タ端子 10……………………………………………………磁気コ
ア 10a…………………………………………………空隙部 11……………………………………………………磁気電
気変換素子 12……………………………………………………回路基
板 13,32……………………………………………増幅回
路 14,28,29,30,31……………………コネク
タ 16……………………………………………………非接触
の電流検出ユニット 18……………………………………………………電流・
電圧検出装置 19……………………………………………………第2の
貫通導体 19a,19b………………………………………コネク
タ端子 20,21……………………………………………接続突
起 22……………………………………………………電圧検
出回路 23……………………………………………………電圧検
出ユニット 24,25,26,27……………………………コネク
タハウジング 33……………………………………………………帰還コ
イル 34……………………………………………………測定器 35a,35b………………………………………抵抗 36……………………………………………………1次巻
線1 ………………………………………………………… Main housing 4 …………………………………………………… Penetration conductor 4a, 4b …………………………………………………… Connector terminal 10 …………………………………………………… Magnetic core 10a ……………… ……………………………………… Void 11 …………………………………………………… Magnetoelectric conversion element 12 ……………………… ………………………………… Circuit board 13,32 ………………………………………… Amplifier circuit 14,28,29,30,31 ……………… ...... Connector 16 ………………………………………………………… Non-contact current detection unit 18 …………………………………………………… ... current
Voltage detection device 19 …………………………………………………… Second penetration conductor 19a, 19b ……………………………………… Connector terminal 20 , 21 …………………………………………………… Connection protrusion 22 …………………………………………………… Voltage detection circuit 23 ………… ……………………………………………… Voltage detection unit 24, 25, 26, 27 ……………………………… Connector housing 33 ……………………………… ………………………… Return coil 34 …………………………………………………… Measuring instrument 35a, 35b …………………………………… ……… Resistance 36 …………………………………………………… Primary winding
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成6年3月9日[Submission date] March 9, 1994
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項2[Name of item to be corrected] Claim 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正2】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0003[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0003】図6及び図7は、従来の電流検出装置の構
成を示したものである。図示のように、該電流検出装置
は、矩形の主ハウジング1を有し、該主ハウジング1内
の底部には筒体2が上下方向に立設され、該筒体2内に
は主ハウジング1を貫通する矩形の貫通孔3が設けられ
ている。該貫通孔3には被測定電流が流れるバスバーよ
りなる貫通導体4が主ハウジング1の下から上向きに貫
通され、その上端は主ハウジング1の上方に突出されて
いる。主ハウジング1の上方に突出された貫通導体4の
上端には、別のバスバーよりなる導体5の端部が重ね合
わされてワッシヤー6,7を介して特殊な頭部を持つボ
ルト8とナット9で締結されている。主ハウジング1内
の筒体2の外周にはC字状の磁気コア10が配置され、
該C字状の磁気コア10の空隙部10aにはホール素子
よりなる磁気電気変換素子11が配置されている。該磁
気電気変換素子11は、主ハウジング1内の回路基板1
2に立設されている。該回路基板12には、増幅回路1
3等が搭載され、更に検出出力を取り出したり増幅回路
13に給電したりするコネクタ14が設けられている。
図示しないが、磁気電気変換素子11より増幅回路13
を介してコネクタ14に至るプリント配線が設けられて
いる。なお、15は磁気コア10を仮止めする仮止め部
材である。これら磁気コア10,磁気電気変換素子1
1,回路基板12,増幅回路13,コネクタ14,仮止
め部材15等により非接触の電流検出ユニット16が構
成されている。6 and 7 show the configuration of a conventional current detecting device. As shown in the figure, the current detection device has a rectangular main housing 1, a cylinder 2 is vertically installed at a bottom portion of the main housing 1, and the main housing 1 is provided in the cylinder 2. A rectangular through hole 3 penetrating through is provided. A through conductor 4 formed of a bus bar through which a current to be measured flows is penetrated through the through hole 3 from below the main housing 1 upward, and an upper end thereof projects above the main housing 1. On the upper end of the penetrating conductor 4 protruding above the main housing 1, the end of the conductor 5 made of another bus bar is superposed, and a bolt 8 and a nut 9 having a special head are provided via washers 6 and 7. It has been concluded. A C-shaped magnetic core 10 is arranged on the outer periphery of the cylindrical body 2 in the main housing 1,
A magnetoelectric conversion element 11 composed of a Hall element is arranged in the void portion 10a of the C-shaped magnetic core 10. The magneto-electric conversion element 11 includes a circuit board 1 in the main housing 1.
It is set up in 2. The circuit board 12 includes an amplifier circuit 1
3 and the like are mounted, and a connector 14 for taking out a detection output and supplying power to the amplifier circuit 13 is further provided.
Although not shown, the magneto-electric conversion element 11 causes the amplifier circuit 13 to
A printed wiring is provided to reach the connector 14 via the. Reference numeral 15 is a temporary fixing member for temporarily fixing the magnetic core 10. These magnetic core 10 and magnetoelectric conversion element 1
1, the circuit board 12, the amplifier circuit 1 3, connector 14, the current detection unit 16 of the non-contact by the temporary fixing member 15 or the like is formed.
【手続補正3】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0004[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0004】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の電流検出装置では、貫通導体4と別の導体5
との連結に、頭部に放射状に7条の溝17を持つ特殊な
ボルト8を用いているので、特殊なドライバーを用いな
いと締結作業が行えない問題点があった。ボルト8とナ
ット9による締結作業では、ボルト8又はナット9を何
度か回す作業が必要になり、締結に手間がかかる問題点
があった。更に、貫通導体にもボルト8を通すための孔
4Aをあける作業が必要になり、工数がかかる問題点が
あった。However, in such a conventional current detection device, the through conductor 4 and the other conductor 5 are provided.
The connection between the to, because of the use of special bolt 8 with a groove 17 of the radial to Article 7 on the head, there is a problem in that the fastening operation can not be performed and does not use a special driver. In the fastening work with the bolt 8 and the nut 9, it is necessary to turn the bolt 8 or the nut 9 several times, and there is a problem that the fastening is troublesome. Furthermore, the work of a hole 4 A for passing a bolt 8 to the through conductor is required, steps there is such a problem.
【手続補正4】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0009[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0009】請求項2に記載の電流・電圧検出装置は、
被測定電流が流れる貫通導体が主ハウジングを貫通して
設けられ、前記主ハウジング内には前記貫通導体に流れ
る被測定電流を、該被測定電流によって発生する磁束を
通す磁気コアと該磁気コア内の磁束を電気信号に変換す
る磁気電気変換素子と該電気信号が順次大きくなるよう
に増幅する増幅回路とこの順次大きくなる電気信号が通
されて前記磁気コアに前記磁束とは逆向きの磁束を両磁
束が平衡するまで発生せる帰還コイルとを用いたゼロフ
ラックス方式の電流検出ユニットが設けられ、前記主ハ
ウジング内には磁気コアに巻回された一次巻線とこれに
直列接続された抵抗とを有する前記貫通導体間の電位差
を検出する電圧検出ユニットが設けられ、前記貫通導体
が貫通する前記主ハウジングの両側の部分にはコネクタ
ハウジングがそれぞれ設けられ、これらコネクタハウジ
ング内に前記貫通導体の端部がコネクタ端子として配置
され、これらコネクタハウジングとその中のコネクタ端
子とにより前記貫通導体を相手導体に接続する各コネク
タが構成されていることを特徴とする。According to another aspect of the current / voltage detecting device,
A through conductor through which a current to be measured flows is provided so as to penetrate through the main housing, and in the main housing, a magnetic core through which a magnetic flux generated by the current to be measured passes a current to be measured flowing through the through conductor and the inside of the magnetic core. Magnetic-electric conversion element for converting the magnetic flux of the magnetic flux into an electric signal, an amplifying circuit for amplifying the electric signal so that the electric signal sequentially increases, and the sequentially increasing electric signal is passed to generate a magnetic flux in the opposite direction to the magnetic flux to the magnetic core. current detecting unit of zero flux method using a feedback coil both flux causes generation until equilibrium is provided, in the thereto a primary winding wound around a magnetic core the main housing
Potential difference between the through conductors having a resistance connected in series
A voltage detection unit is provided, connector housings are respectively provided on both sides of the main housing through which the through conductor penetrates, and end portions of the through conductor are arranged as connector terminals in these connector housings. The connector housing and the connector terminals therein form each connector for connecting the through conductor to the mating conductor.
【手続補正5】[Procedure Amendment 5]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図5[Name of item to be corrected] Figure 5
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図5】 [Figure 5]
【手続補正6】[Procedure correction 6]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図6[Name of item to be corrected] Figure 6
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図6】 [Figure 6]
【手続補正7】[Procedure Amendment 7]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図7[Name of item to be corrected] Figure 7
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図7】 [Figure 7]
Claims (2)
導体が主ハウジングを貫通して設けられ、前記主ハウジ
ング内には前記第1,第2の貫通導体の一方に流れる被
測定電流を検出する電流検出ユニットと前記第1,第2
の貫通導体間の電位差を検出するための電圧検出ユニッ
トとが設けられ、前記第1,第2の貫通導体が貫通する
前記主ハウジングの両側の部分にはコネクタハウジング
がそれぞれ設けられ、これらコネクタハウジング内に前
記第1,第2の貫通導体の端部がコネクタ端子として配
置され、これらコネクタハウジングとその中のコネクタ
端子とにより前記第1,第2の貫通導体を相手導体に接
続する各コネクタが構成されていることを特徴とする電
流・電圧検出装置。1. A first and a second penetrating conductor, through which positive and negative currents flow, are provided so as to penetrate the main housing, and in the main housing, an object to flow to one of the first and the second penetrating conductors is provided. A current detection unit for detecting a measurement current and the first and second
And a voltage detection unit for detecting the potential difference between the through conductors, and connector housings are provided on both sides of the main housing through which the first and second through conductors pass, respectively. End portions of the first and second through conductors are arranged therein as connector terminals, and each connector for connecting the first and second through conductors to the mating conductor is formed by these connector housings and the connector terminals therein. A current / voltage detector characterized in that it is configured.
ングを貫通して設けられ、前記主ハウジング内には前記
貫通導体に流れる被測定電流を、該被測定電流によって
発生する磁束を通す磁気コアと該磁気コア内の磁束を電
気信号に変換する磁気電気変換素子と該電気信号が順次
大きくなるように増幅する増幅回路とこの順次大きくな
る電気信号が通されて前記磁気コアに前記磁束とは逆向
きの磁束を両磁束が平衡するまで発生せる帰還コイルと
を用いたゼロフラックス方式の電流検出ユニットが設け
られ、前記主ハウジング内には更に前記磁気コアに巻回
されて前記貫通導体に流れる被測定電流に基づく電圧を
検出する1次巻線とこれに直列接続された抵抗とを有す
る電圧検出ユニットが設けられ、前記貫通導体が貫通す
る前記主ハウジングの両側の部分にはコネクタハウジン
グがそれぞれ設けられ、これらコネクタハウジング内に
前記貫通導体の端部がコネクタ端子として配置され、こ
れらコネクタハウジングとその中のコネクタ端子とによ
り前記貫通導体を相手導体に接続する各コネクタが構成
されていることを特徴とする電流・電圧検出装置。2. A magnetic core in which a through conductor through which a current to be measured flows is provided so as to penetrate through a main housing, and a current to be measured flowing through the through conductor passes through a magnetic flux generated by the current to be measured in the main housing. A magnetic-electric conversion element for converting the magnetic flux in the magnetic core into an electric signal; an amplifier circuit for amplifying the electric signal so that the electric signal sequentially increases; and the electric signal that sequentially increases to pass the magnetic flux to the magnetic core. A zero-flux type current detection unit using a feedback coil that generates reverse magnetic flux until both magnetic fluxes are balanced is provided, and is further wound in the main housing around the magnetic core and flows into the through conductor. The main housing is provided with a voltage detection unit having a primary winding that detects a voltage based on a current to be measured and a resistor connected in series to the primary winding, and the through conductor passes through the main housing. Connector housings are provided on both sides of the connector housing, and the end portions of the through conductors are arranged as connector terminals in the connector housings, and the through conductors are connected to the mating conductors by the connector housings and the connector terminals therein. A current / voltage detecting device characterized in that each connector is configured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28381593A JP3172629B2 (en) | 1993-11-15 | 1993-11-15 | Current / voltage detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28381593A JP3172629B2 (en) | 1993-11-15 | 1993-11-15 | Current / voltage detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07140179A true JPH07140179A (en) | 1995-06-02 |
JP3172629B2 JP3172629B2 (en) | 2001-06-04 |
Family
ID=17670515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28381593A Expired - Fee Related JP3172629B2 (en) | 1993-11-15 | 1993-11-15 | Current / voltage detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3172629B2 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006194650A (en) * | 2005-01-12 | 2006-07-27 | Hitachi Ltd | Current sensor |
JP2012220384A (en) * | 2011-04-12 | 2012-11-12 | Auto Network Gijutsu Kenkyusho:Kk | Voltage/current detection apparatus |
WO2013136751A1 (en) * | 2012-03-16 | 2013-09-19 | キヤノン電子株式会社 | Measurement module, electronic apparatus, power source tap, power source unit, and embedded measurement module |
JP2013196861A (en) * | 2012-03-16 | 2013-09-30 | Canon Electronics Inc | Ac inlet, current detection device, voltage detection device, electronic equipment, and power supply tap |
JP2013234990A (en) * | 2012-04-13 | 2013-11-21 | Canon Electronics Inc | Measurement module, electronic apparatus, power source tap, power source unit, and build-in measurement module |
CN105044427A (en) * | 2014-04-28 | 2015-11-11 | 安普泰科电子韩国有限公司 | Hybrid Current Sensor Assembly |
JP2015210272A (en) * | 2014-04-28 | 2015-11-24 | タイコ エレクトロニクス アンプ コリア カンパニーTyco Electronics AMP Korea Co.,Ltd | Hybrid current sensor assembly |
-
1993
- 1993-11-15 JP JP28381593A patent/JP3172629B2/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006194650A (en) * | 2005-01-12 | 2006-07-27 | Hitachi Ltd | Current sensor |
JP2012220384A (en) * | 2011-04-12 | 2012-11-12 | Auto Network Gijutsu Kenkyusho:Kk | Voltage/current detection apparatus |
WO2013136751A1 (en) * | 2012-03-16 | 2013-09-19 | キヤノン電子株式会社 | Measurement module, electronic apparatus, power source tap, power source unit, and embedded measurement module |
JP2013196861A (en) * | 2012-03-16 | 2013-09-30 | Canon Electronics Inc | Ac inlet, current detection device, voltage detection device, electronic equipment, and power supply tap |
US9651583B2 (en) | 2012-03-16 | 2017-05-16 | Canon Denshi Kabushiki Kaisha | Measurement module, electronic apparatus, power supply tap, power supply unit, and built-in measurement module |
JP2013234990A (en) * | 2012-04-13 | 2013-11-21 | Canon Electronics Inc | Measurement module, electronic apparatus, power source tap, power source unit, and build-in measurement module |
CN105044427A (en) * | 2014-04-28 | 2015-11-11 | 安普泰科电子韩国有限公司 | Hybrid Current Sensor Assembly |
JP2015210272A (en) * | 2014-04-28 | 2015-11-24 | タイコ エレクトロニクス アンプ コリア カンパニーTyco Electronics AMP Korea Co.,Ltd | Hybrid current sensor assembly |
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