JP7395434B2

JP7395434B2 - Current detection device and electricity meter using the same

Info

Publication number: JP7395434B2
Application number: JP2020112415A
Authority: JP
Inventors: 慎一良知
Original assignee: Toshiba Toko Meter Systems Co Ltd
Current assignee: Toshiba Toko Meter Systems Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2023-12-11
Anticipated expiration: 2040-06-30
Also published as: JP2022011347A

Description

本発明は、磁電変換により導体を流れる電流の大きさを検出する電流検出装置およびこれを用いた電力量計に関する。 The present invention relates to a current detection device that detects the magnitude of a current flowing through a conductor by magnetoelectric conversion, and a watthour meter using the same.

従来、一般家庭や工場、事務所などに設置されて負荷電流を検出する電流検出装置が知られている。この電流検出装置は、例えば、負荷電流が流れることにより磁界を発生する導体と、この導体により発生された磁界を検出する磁電変換部とを備えている。磁電変換部は、トロイダルコアと呼ばれるドーナツ状の磁性体コアに、エナメル線のような導線を巻いたコイルにより形成される。この電流検出装置を組み立てる際は、磁性体コアの穴に導体を通す必要があり、その作業に手間がかかるので電流検出装置が高価になるという問題点があった（特許文献１参照）。 2. Description of the Related Art Conventionally, current detection devices are known that are installed in general homes, factories, offices, etc. to detect load current. This current detection device includes, for example, a conductor that generates a magnetic field when a load current flows, and a magnetoelectric conversion unit that detects the magnetic field generated by the conductor. The magnetoelectric converter is formed by a coil in which a conducting wire such as an enameled wire is wound around a donut-shaped magnetic core called a toroidal core. When assembling this current detection device, it is necessary to pass a conductor through the hole in the magnetic core, which is a time-consuming process, which poses a problem in that the current detection device becomes expensive (see Patent Document 1).

この問題を解決したのが、磁性体部を２分割して磁性体部を摺動させることで、導体を通すことができる電流検出装置がある（特許文献２参照）。 This problem has been solved by a current detection device that can pass a conductor by dividing the magnetic body part into two and sliding the magnetic body part (see Patent Document 2).

特開２００５－３７２９７号公報Japanese Patent Application Publication No. 2005-37297 特許第５７３１８７６号Patent No. 5731876

しかし、磁性体部を摺動して固定するときに、篏合が外れていて電流検出装置が固定されていない場合があった。このため、確実に固定する必要があった。 However, when sliding and fixing the magnetic body part, there have been cases where the engagement has come off and the current detection device is not fixed. Therefore, it was necessary to securely fix it.

本発明の課題は、導体を電流検出装置へ組み込み作業時に、磁性体部を摺動して確実に固定することで信頼性を高めることができる電流検出装置およびこれを用いた電力量計を提供する。 An object of the present invention is to provide a current detection device and a watt-hour meter using the same, which can improve reliability by sliding and securely fixing a magnetic part when a conductor is assembled into the current detection device. do.

上記課題を解決するために、本発明の請求項１は、導体を流れる被測定電流の方向に直交する面上で該導体の周囲を囲むように配置され磁気回路の一部を形成する第１磁性体部、該第１磁性体部と対向配置した第２磁性体部と、前記磁気回路の磁路に配置され磁界を検出する電流検出部と、前記第１磁性体部を取付ける第１磁性体取付部、第１絶縁摺動部、第１固定摺動部を有する第１絶縁体部と、前記電流検出部を取付ける第２電流検出取付部、前記第２磁性体部を取付ける第２磁性体取付部、前記第１絶縁体部の第１絶縁摺動部に嵌合して摺動する第２絶縁摺動部、第２摺動固定部、第２開口側閉固定部を有した第２絶縁体部と、前記第１絶縁体部の第１固定摺動部に嵌合して摺動する固定摺動部、前記第２絶縁体部の第２摺動固定部に嵌合して摺動を固定する先端に爪部を有したスナップフィット構造の固定摺動固定部、前記第２絶縁体部の第２開口側閉固定部に嵌合して固定する固定開口側閉固定部を有する固定部品とを備え、前記第１絶縁体部から離れる方向に前記第２絶縁体部を摺動して開状態にし、前記導体を中央部に挿入した後、前記第１絶縁体部に近づく方向に前記第２絶縁体部を摺動して閉状態にした後、前記固定部品を摺動して、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に嵌合することを特徴とする。 In order to solve the above-mentioned problems, claim 1 of the present invention provides a first magnetic circuit that is arranged so as to surround the conductor on a plane perpendicular to the direction of the current to be measured flowing through the conductor and forms a part of the magnetic circuit. a magnetic body part, a second magnetic body part arranged to face the first magnetic body part, a current detection part arranged in a magnetic path of the magnetic circuit to detect a magnetic field, and a first magnetic body part to which the first magnetic body part is attached. a first insulator part having a body mounting part, a first insulating sliding part, and a first fixed sliding part; a second current detection mounting part to which the current detection part is mounted; and a second magnetic part to which the second magnetic body part is mounted. a second insulating sliding part that fits and slides on the first insulating sliding part of the first insulating part; a second sliding fixing part; and a second opening-side closing fixing part. 2 insulator parts, a fixed sliding part that fits and slides on the first fixed sliding part of the first insulator part, and a fixed sliding part that fits and slides on the second fixed sliding part of the second insulator part. A fixed sliding fixing part with a snap-fit structure having a claw part at the tip for fixing the sliding, and a fixed opening side closing fixing part that fits and fixes to the second opening side closing fixing part of the second insulator part. a fixing component having a fixed part, the second insulator part is slid in a direction away from the first insulator part to be in an open state, and after the conductor is inserted into the central part, the second insulator part is approached to the first insulator part. After sliding the second insulator part in the direction of the closed state, the fixing part is slid so that the claw part of the fixing sliding fixing part of the fixing part becomes the second insulator part of the second insulator part. At the same time as fitting into the sliding fixing part, the fixed opening side closing fixing part of the fixing component fits into the second opening side closing fixing part of the second insulator part.

本発明の請求項２は、前記第２絶縁体部に第２摺動側閉固定部を設け、前記固定部品に前記第２絶縁体部の第２摺動側閉固定部に対応して固定摺動側閉固定部を設け、開状態にある前記固定部品を摺動して閉状態にするとき、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に篏合するとともに、前記固定部品の固定摺動側閉固定部が前記第２絶縁体部の第２摺動側閉固定部に嵌合することを特徴とする。 According to a second aspect of the present invention, a second sliding side closing fixing part is provided in the second insulator part, and the second sliding side closing fixing part is fixed to the fixed part in correspondence with the second sliding side closing fixing part of the second insulator part. A sliding side closing fixing portion is provided, and when the fixed component in the open state is slid to the closed state, the claw portion of the fixed sliding fixing portion of the fixed component engages with the second sliding portion of the second insulator portion. At the same time as fitting into the dynamic fixing part, the fixed opening side closing fixing part of the fixing part is engaged with the second opening side closing fixing part of the second insulator part, and the fixed sliding side closing fixation of the fixing part is engaged. The second sliding side closing/fixing portion of the second insulator portion is fitted into the second sliding side closing/fixing portion of the second insulator portion.

本発明の請求項３は、前記第２絶縁体部の第２開口側閉固定部の近傍に、開口側閉固定検出部を取り付ける第２開口側検出取付部を設け、前記第２開口側検出取付部に前記開口側閉固定検出部を取付け、開状態にある前記固定部品を摺動して閉状態にするとき、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に嵌合するときに、前記固定部品の固定開口側閉固定部が前記開口側閉固定検出部に接触して閉状態を検出することを特徴とする。 Claim 3 of the present invention provides a second opening side detection mounting part for attaching an opening side closed fixing detection part in the vicinity of the second opening side closing fixing part of the second insulator part, and When the opening-side closed fixation detecting section is attached to the mounting section and the fixed component in the open state is slid to the closed state, the claw portion of the fixed sliding fixing section of the fixed component is connected to the second insulator section. At the same time, when the fixed opening side closing fixing part of the fixing part fits into the second opening side closing fixing part of the second insulator part, the fixing part is fixed. It is characterized in that the opening side close fixing section contacts the opening side close fixing detection section to detect the closed state.

本発明の請求項４は、前記第２絶縁体部の第２開口側閉固定部の近傍に、開口側閉固定検出部を取り付ける第２開口側検出取付部を設け、前記第２絶縁体部の第２摺動側閉固定部の近傍に、摺動側閉固定検出部を取り付ける第２摺動側検出取付部を設け、前記第２開口側検出取付部に開口側閉固定検出部を設け、第２摺動側検出取付部に摺動側閉固定検出部を取付け、開状態にある前記固定部品を摺動して閉状態にするとき、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に嵌合するときに、前記固定部品の固定開口側閉固定部が前記開口側閉固定検出部に接触して閉状態を検出すると同時に、前記固定部品の固定摺動側閉固定部が前記第２絶縁体部の第２摺動側閉固定部に嵌合するときに、前記固定部品の固定摺動側閉固定部が前記摺動側閉固定検出部に接触して閉状態を検出することを特徴とする。 According to a fourth aspect of the present invention, a second opening-side detection mounting portion for mounting an opening-side closed fixing detection portion is provided in the vicinity of the second opening-side closing fixing portion of the second insulator portion, and the second insulator portion A second sliding side detection mounting part for attaching a sliding side closed fixing detection part is provided near the second sliding side closed fixing part, and an opening side closed fixing detection part is provided in the second opening side detection mounting part. , when a sliding side close fixing detection part is attached to the second sliding side detection mounting part, and the fixed part in the open state is slid to the closed state, the claw part of the fixed sliding fixing part of the fixed part is fitted into the second sliding fixing part of the second insulator section, and at the same time, the fixed opening side closing fixing part of the fixing component is fitting into the second opening side closing fixing part of the second insulator part. At the same time, the fixed opening side closing fixing portion of the fixed component contacts the opening side closing fixing detection portion to detect the closed state, and at the same time, the fixed sliding side closing fixing portion of the fixed component contacts the opening side closed fixing detection portion. When fitting into the second sliding side closing fixing section, the fixed sliding side closing fixing section of the fixed component contacts the sliding side closing fixing detection section to detect the closed state.

本発明の請求項５の電力量計は、請求項１乃至請求項４のいずれか１項記載の電流検出装置と、導体に発生する電圧を検出する電圧検出部と、前記電流検出装置により検出された電流と前記電圧検出部で検出された電圧とに基づき電力又は電力量を算出する電力演算部とを備えることを特徴とする。 A watt-hour meter according to claim 5 of the present invention includes a current detection device according to any one of claims 1 to 4, a voltage detection section that detects a voltage generated in a conductor, and a current detection device that detects a voltage generated in a conductor. The present invention is characterized by comprising a power calculation section that calculates electric power or electric energy based on the current detected by the voltage detection section and the voltage detected by the voltage detection section.

請求項１の発明によれば、現行品に比べ、電流検出装置を導体に取り付けたときに、固定部品の摺動による固定により確実に固定できるため、信頼性を高めることができる。 According to the invention of claim 1, when the current detecting device is attached to the conductor, it can be securely fixed by sliding the fixed parts, so that reliability can be improved.

請求項２の発明によれば、請求項１に比べ、固定部品の閉固定部が複数個所になり、固定部品の摺動による固定で複数個所を固定することができるため、より信頼性を高めることができる。 According to the invention of claim 2, compared to claim 1, the fixed part has a plurality of closed fixing parts, and the plurality of places can be fixed by sliding the fixed part, so that reliability is further improved. be able to.

請求項３の発明によれば、請求項１、２に比べ、閉固定時の検出ができるため、確実に固定していることを認識できるため、信頼性を高めることができる。 According to the invention of claim 3, compared to claims 1 and 2, since it is possible to detect the closed fixation, it is possible to recognize that the closure is securely fixed, so that reliability can be improved.

請求項４の発明によれば、請求項３に比べ、閉固定時に複数の閉固定部の検出ができるため、より確実に固定していることを認識できるため、信頼性を高めることができる。 According to the invention of claim 4, compared to claim 3, since a plurality of closed and fixed parts can be detected when the closed and fixed parts are fixed, it is possible to recognize that the closed and fixed parts are fixed more reliably, so that reliability can be improved.

請求項５の発明によれば、請求項１～４で挙げられた電流検出装置を利用した電力量計を実現でき、電力量計組立時の電流検出装置組み込み時において、電流検出装置が確実に取付られていることを確認できる上、電力量計出荷後から需要家での設置作業に至るまでに生じる振動や衝撃により、電流検出装置が万が一外れた場合においても、外れを検出して表示部で異常を表示し、別に取り付けられた通信装置等により外部に通報することも可能である。 According to the invention of claim 5, it is possible to realize a watt-hour meter that uses the current detection device listed in claims 1 to 4, and when the current detection device is installed when assembling the watt-hour meter, the current detection device can be reliably installed. Not only can you confirm that it is installed, but even if the current detection device should come off due to vibration or shock that occurs from the time the watt-hour meter is shipped to the time it is installed at the customer, the disconnection will be detected and the display will be displayed. It is also possible to display an abnormality on the screen and report it to the outside using a separately installed communication device.

本発明の第１の実施形態に係る電流検出装置の組立斜視図である。FIG. 1 is an assembled perspective view of a current detection device according to a first embodiment of the present invention. 本発明の第１の実施形態に係る電流検出装置の組立断面図である。FIG. 1 is an assembled sectional view of a current detection device according to a first embodiment of the present invention. 本発明の第１の実施形態に係る電流検出装置の分解斜視図である。FIG. 1 is an exploded perspective view of a current detection device according to a first embodiment of the present invention. 本発明の第２の実施形態に係る電流検出装置の組立斜視図である。FIG. 3 is an assembled perspective view of a current detection device according to a second embodiment of the present invention. 本発明の第２の実施形態に係る電流検出装置の組立断面図である。FIG. 3 is an assembled sectional view of a current detection device according to a second embodiment of the present invention. 本発明の第２の実施形態に係る電流検出装置の分解斜視図である。FIG. 3 is an exploded perspective view of a current detection device according to a second embodiment of the present invention. 本発明の第３の実施形態に係る電流検出装置の斜視図と組立断面図である。FIG. 7 is a perspective view and an assembled sectional view of a current detection device according to a third embodiment of the present invention. 本発明の第４の実施形態に係る電流検出装置の斜視図と組立断面図である。FIG. 7 is a perspective view and an assembled sectional view of a current detection device according to a fourth embodiment of the present invention. 本発明の第５の実施形態に係る電力量計のブロック図である。It is a block diagram of the electricity meter concerning the 5th embodiment of the present invention.

以下、本発明の実施の形態に係る電流検出装置及び電力量計について、図面を参照しながら詳細に説明する。 EMBODIMENT OF THE INVENTION Hereinafter, a current detection device and a power meter according to an embodiment of the present invention will be described in detail with reference to the drawings.

（第１の実施形態）
図１（ａ）～図１（ｄ）は、本発明の第１の実施形態に係る電流検出装置の組立斜視図である。図２（ａ）～図２（ｃ）は、本発明の第１の実施形態に係る電流検出装置の組立断面図である。図３（ａ）～図３（ｂ）は、本発明の第１の実施形態に係る電流検出装置の分解斜視図である。 (First embodiment)
FIGS. 1(a) to 1(d) are assembled perspective views of a current detection device according to a first embodiment of the present invention. FIGS. 2(a) to 2(c) are assembled sectional views of the current detection device according to the first embodiment of the present invention. 3(a) to 3(b) are exploded perspective views of the current detection device according to the first embodiment of the present invention.

図１（ａ）～図１（ｄ）、図２（ａ）～図２（ｃ）は、第１絶縁体部１Ａから離れる方向に第２絶縁体部５Ａを縦方向に摺動して開状態とし、導体１０を中央部に挿入して第２絶縁体部５Ａを第１絶縁体部１Ａに近づける方向（縦方向に）に摺動した後、固定部品６Ａを第２絶縁体部５Ａと嵌合させた状態までの一連の取付手順を示す。 1(a) to 1(d) and FIG. 2(a) to FIG. 2(c), the second insulator portion 5A is opened by vertically sliding it in the direction away from the first insulator portion 1A. After inserting the conductor 10 into the center and sliding the second insulator part 5A closer to the first insulator part 1A (in the vertical direction), the fixed part 6A is connected to the second insulator part 5A. A series of installation procedures up to the mated state is shown.

電流検出装置は、第１磁性体部２Ａ、第２磁性体部４Ａ、電流検出部３Ａ、第１絶縁体部１Ａ、第２絶縁体部５Ａ、固定部品６Ａを備えている。 The current detection device includes a first magnetic body part 2A, a second magnetic body part 4A, a current detection part 3A, a first insulator part 1A, a second insulator part 5A, and a fixed part 6A.

導体１０は、鉄又は銅などの導電性の金属により構成されている。導体１０は、被測定電流である負荷電流が流れることにより磁界を発生する。 The conductor 10 is made of conductive metal such as iron or copper. The conductor 10 generates a magnetic field when a load current, which is a current to be measured, flows therethrough.

第１磁性体部２Ａは、図２（ａ）に示すようにコの字状をなす磁性体コアからなり、導体１０を流れる被測定電流の方向に直交する面上で、導体１０の周囲を囲むように配置されて磁気回路の一部を形成する。 The first magnetic body part 2A is composed of a U-shaped magnetic core as shown in FIG. It is arranged in a surrounding manner to form part of a magnetic circuit.

第２磁性体部４Ａも、コの字状をなす磁性体コアからなり、第１磁性体部２Ａと対向して配置され、導体１０を流れる被測定電流の方向に直交する面上で、第１磁性体部２Ａとで導体１０の周囲を囲むように配置されて磁気回路の一部を形成する。 The second magnetic body part 4A also consists of a U-shaped magnetic core, and is disposed facing the first magnetic body part 2A, and has a 1 and 2 A of magnetic materials are arranged to surround the periphery of the conductor 10 to form part of a magnetic circuit.

電流検出部３Ａは、例えば、磁気センサから構成され、第１磁性体部２Ａと第２磁性体部４Ａとで形成される磁気回路の磁路に配置され導体１０に流れる電流により発生する磁界を検出する。 The current detection unit 3A is configured of a magnetic sensor, for example, and is arranged in a magnetic path of a magnetic circuit formed by the first magnetic body part 2A and the second magnetic body part 4A, and detects a magnetic field generated by a current flowing through the conductor 10. To detect.

第１絶縁体部１Ａは、例えば樹脂からなり、第２絶縁体部５Ａを縦方向に摺動して固定され、図３（ｂ）に示すように、第１磁性体取付部１Ａａ、第１絶縁摺動部1Ａｂ、第１固定摺動部１Ａｃを有する。 The first insulator part 1A is made of resin, for example, and is fixed by sliding the second insulator part 5A in the vertical direction, and as shown in FIG. 3(b), the first magnetic body attachment part 1Aa, the first It has an insulating sliding part 1Ab and a first fixed sliding part 1Ac.

第１磁性体取付部１Ａａは、コの字状の凹部からなり、コの字状の第１磁性体部２Ａを取付ける。第１絶縁摺動部１Ａｂは、凸部からなり、図１に示す第２絶縁体部５Ａの縦長の穴部からなる第２絶縁摺動部５Ａｃに嵌合して縦方向に摺動する。第１固定摺動部１Ａｃは、凸部からなり、固定部品６Ａの横長の穴部からなる固定摺動部６Ａａに篏合して横方向に摺動する。 The first magnetic body attachment portion 1Aa is a U-shaped recessed portion, and the U-shaped first magnetic body portion 2A is attached thereto. The first insulating sliding portion 1Ab is formed of a convex portion, and is fitted into a second insulating sliding portion 5Ac formed of a vertically elongated hole of the second insulating portion 5A shown in FIG. 1, and slides in the vertical direction. The first fixed sliding portion 1Ac is formed of a convex portion and slides in the lateral direction by fitting into the fixed sliding portion 6Aa formed of a horizontally elongated hole of the fixed component 6A.

第２絶縁体部５Ａも、例えば樹脂からなり、第１絶縁体部１Ａと対向して配置され、図３（ａ）に示すように、第２電流検出取付部５Ａａ、第２磁性体取付部５Ａｂ、第２絶縁摺動部５Ａｃ、第２摺動固定部５Ａｄ、第２開口側閉固定部５Ａｅを有している。 The second insulator part 5A is also made of resin, for example, and is arranged facing the first insulator part 1A, and as shown in FIG. 5Ab, a second insulating sliding part 5Ac, a second sliding fixing part 5Ad, and a second opening side closing fixing part 5Ae.

第２磁性体取付部５Ａｂは、図３（ａ）に示すように、コの字状の凹部からなり、第２磁性体部４Ａを取付ける。第２電流検出取付部５Ａａは、第２磁性体取付部５Ａｂに取り付けられた第２磁性体部４Ａの右端凸部の上に位置して、電流検出部３Ａを取付ける。 As shown in FIG. 3(a), the second magnetic body attachment portion 5Ab consists of a U-shaped recess, and the second magnetic body portion 4A is attached thereto. The second current detection attachment portion 5Aa is located above the right-end convex portion of the second magnetic body portion 4A attached to the second magnetic body attachment portion 5Ab, and the current detection portion 3A is attached thereto.

第２絶縁摺動部５Ａｃは、縦長の穴部からなり、第１絶縁体部１Ａの第１絶縁摺動部１Ａｂに嵌合して縦方向に摺動する。第２摺動固定部５Ａｄは、凹部からなり、固定部品６Ａの固定摺動固定部６Ａｂの先端にある爪部６Ａｃに嵌合して摺動を固定する。第２開口側閉固定部５Ａｅは、凸部からなり、図２（ｃ）及び図３（ｂ）に示す固定部品６Ａの凹部からなる固定開口側閉固定部６Ａｄに嵌合して固定する。 The second insulating sliding portion 5Ac is formed of a vertically elongated hole, and is fitted into the first insulating sliding portion 1Ab of the first insulating portion 1A to slide in the vertical direction. The second sliding fixing portion 5Ad is formed of a recess and is fitted into the claw portion 6Ac at the tip of the fixed sliding fixing portion 6Ab of the fixing component 6A to fix sliding. The second opening side closing fixing part 5Ae is made of a convex part and is fixed by fitting into the fixed opening side closing fixing part 6Ad made of a concave part of the fixing component 6A shown in FIGS. 2(c) and 3(b).

固定部品６Ａは、第１絶縁体部１Ａに取り付けられ、固定摺動部６Ａａ、固定摺動固定部６Ａｂ、固定開口側閉固定部６Ａｄを有している。 The fixed component 6A is attached to the first insulator portion 1A, and has a fixed sliding portion 6Aa, a fixed sliding fixing portion 6Ab, and a fixed opening side closing fixing portion 6Ad.

固定摺動部６Ａａは、横長の穴部からなり、第１絶縁体部１Ａの凸部からなる第１固定摺動部１Ａｃに嵌合して横方向に摺動する。固定摺動固定部６Ａｂは、先端に爪部６Ａｃを有したスナップフィット構造で構成され、第２絶縁体部５Ａの凹部からなる第２摺動固定部５Ａｄに嵌合して摺動を固定する。固定開口側閉固定部６Ａｄは、凹部からなり、第２絶縁体部５Ａの凸部からなる第２開口側閉固定部５Ａｅに嵌合して固定する。 The fixed sliding portion 6Aa is formed of a horizontally elongated hole, and is fitted into the first fixed sliding portion 1Ac formed of a convex portion of the first insulator portion 1A, and slides in the lateral direction. The fixed sliding fixing part 6Ab has a snap-fit structure with a claw part 6Ac at the tip, and is fitted into the second sliding fixing part 5Ad made of a recess of the second insulator part 5A to fix sliding. . The fixed opening side closing fixing part 6Ad is made of a recessed part, and is fitted and fixed to the second opening side closing fixing part 5Ae made of a convex part of the second insulator part 5A.

次に、このように構成された第１の実施形態の電流検出装置の動作を説明する。まず、図１（ａ）に示すように、第１絶縁体部１Ａから離れる方向に第２絶縁体部５Ａを縦方向に摺動して開状態とする。次に、図１（ｂ）及び図２（ａ）に示すように、導体１０を中央部に挿入した後、第１絶縁体部１Ａに近づく方向に第２絶縁体部５Ａを縦方向に摺動して閉状態にする。 Next, the operation of the current detection device of the first embodiment configured as described above will be explained. First, as shown in FIG. 1(a), the second insulator section 5A is vertically slid in a direction away from the first insulator section 1A to open it. Next, as shown in FIGS. 1(b) and 2(a), after inserting the conductor 10 into the center, slide the second insulator part 5A vertically in the direction approaching the first insulator part 1A. move it to the closed position.

その後、固定部品６Ａを横方向に摺動して、図２（ｃ）に示すように、固定部品６Ａの固定摺動固定部６Ａｂの爪部６Ａｃが第２絶縁体部５Ａの第２摺動固定部５Ａｄに嵌合する。 Thereafter, the fixed part 6A is slid in the lateral direction, and as shown in FIG. It fits into the fixed part 5Ad.

この動作と同時に、固定部品６Ａの固定開口側閉固定部６Ａｄが第２絶縁体部５Ａの第２開口側閉固定部５Ａｅに嵌合する。これにより、電流検出装置を固定することができる。 Simultaneously with this operation, the fixed opening side closing fixing part 6Ad of the fixed part 6A fits into the second opening side closing fixing part 5Ae of the second insulator part 5A. This allows the current detection device to be fixed.

導体１０からこの電流検出装置を取外す場合は、固定部品６Ａの固定摺動固定部６Ａｂの爪部６Ａｃを持ち上げて、第２絶縁体部５Ａの第２摺動固定部５Ａｄから固定部品６Ａの固定摺動固定部６Ａｂの爪部６Ａｃを外し、横方向に摺動させる。 When removing this current detection device from the conductor 10, lift the claw portion 6Ac of the fixed sliding fixing portion 6Ab of the fixed component 6A, and remove the fixing component 6A from the second sliding fixing portion 5Ad of the second insulator portion 5A. The claw portion 6Ac of the sliding fixed portion 6Ab is removed and slid in the horizontal direction.

その後、第１絶縁体部１Ａから離れる方向に第２絶縁体部５Ａを縦方向に摺動して開状態とすることで、導体１０から電流検出装置を取外すことができる。 Thereafter, the current detection device can be removed from the conductor 10 by vertically sliding the second insulator section 5A in a direction away from the first insulator section 1A to open the second insulator section 5A.

また、組立てられた状態において、固定部品６Ａの固定摺動固定部６Ａｂの爪部６Ａｃの周囲を第２絶縁体部５Ａで覆うことで、電流検出装置を取外し難くして、容易に外せない構造にすることも可能である。 In addition, in the assembled state, by covering the periphery of the claw portion 6Ac of the fixed sliding fixing portion 6Ab of the fixed component 6A with the second insulator portion 5A, the current detection device is difficult to remove, and the structure is such that it cannot be easily removed. It is also possible to

このように第１の実施形態の電流検出装置によれば、現行品に比べ、電流検出装置を導体１０に取り付けたときに、固定部品６Ａの摺動による固定により確実に電流検出装置の固定が行えるため、信頼性を高めることができる。 As described above, according to the current detection device of the first embodiment, when the current detection device is attached to the conductor 10, the current detection device can be securely fixed by sliding the fixing part 6A, compared to the current product. This can improve reliability.

（第２の実施形態）
図４（ａ）～図４（ｄ）は、本発明の第２の実施形態に係る電流検出装置の組立斜視図である。図５（ａ）～図５（ｃ）は、本発明の第２の実施形態に係る電流検出装置の組立断面図である。図６（ａ）～図６（ｂ）は、本発明の第２の実施形態に係る電流検出装置の分解斜視図である。 (Second embodiment)
FIGS. 4(a) to 4(d) are assembled perspective views of a current detection device according to a second embodiment of the present invention. 5(a) to 5(c) are assembled sectional views of a current detection device according to a second embodiment of the present invention. 6(a) to 6(b) are exploded perspective views of a current detection device according to a second embodiment of the present invention.

図４（ａ）～図４（ｄ）、図５（ａ）～図５（ｃ）は、第１絶縁体部１Ｂから離れる方向に第２絶縁体部５Ｂを縦方向に摺動して開状態とし、導体１０を中央部に挿入して第２絶縁体部５Ｂを第１絶縁体部１Ｂに近づける方向に摺動した後、固定部品６Ｂを第２絶縁体部５Ｂと嵌合させた状態までの一連の取付手順を示す。 4(a) to 4(d) and FIG. 5(a) to 5(c), the second insulator portion 5B is opened by vertically sliding it in the direction away from the first insulator portion 1B. After inserting the conductor 10 into the center and sliding the second insulator section 5B closer to the first insulator section 1B, the fixed part 6B is fitted with the second insulator section 5B. This shows the series of installation steps up to.

第２の実施形態において、第２絶縁体部５Ｂの第２開口側閉固定部５Ｂｅ１は、図５（ａ）に示すように、開状態において、第１絶縁体部１Ｂと第２絶縁体部５Ｂが離れて導体１０が挿入できる部位に設けられている。 In the second embodiment, the second opening side closing fixing part 5Be1 of the second insulator part 5B is in the open state, as shown in FIG. 5B is provided at a location where the conductor 10 can be inserted.

また、第１の実施形態の構成に、図６（ａ）に示すように、第２絶縁体部５Ｂに凹部からなる第２摺動側閉固定部５Ｂｅ２を設けている。第２絶縁体部５Ｂの第２摺動側閉固定部５Ｂe２に嵌合するように図６（ｂ）に示す固定部品６Ｂには先端に凸部が形成された固定摺動側閉固定部６Ｂｄ２が設けられている。第１絶縁体部１Ｂには図６（ａ）に示すように、固定摺動側閉固定部６Ｂｄ２に嵌合して固定摺動側閉固定部６Ｂｄ２を摺動させる凹部からなる摺動部１Ｂｄが設けられている。 Further, in the configuration of the first embodiment, as shown in FIG. 6(a), a second sliding side closing fixing portion 5Be2 consisting of a recess is provided in the second insulator portion 5B. The fixed sliding side closed fixing part 6Bd2 has a protrusion formed at the tip of the fixed part 6B shown in FIG. 6(b) so as to fit into the second sliding side closed fixing part 5Be2 of the second insulator part 5B. is provided. As shown in FIG. 6(a), the first insulator part 1B has a sliding part 1Bd which is a recess that fits into the fixed sliding side closing fixing part 6Bd2 and allows the fixed sliding side closing fixing part 6Bd2 to slide. is provided.

次に、このように構成された第２の実施形態の電流検出装置の動作を説明する。まず、図４（ａ）に示すように、第１絶縁体部１Ｂから離れる方向に第２絶縁体部５Ｂを縦方向に摺動して開状態とする。次に、図４（ｂ）及び図５（ａ）に示すように、導体１０を中央部に挿入した後、第１絶縁体部１Ｂに近づく方向に第２絶縁体部５Ｂを縦方向に摺動して閉状態にする。その後、固定部品６Ｂを横方向に摺動して、図５（ｃ）に示すように、固定部品６Ｂの固定摺動固定部６Ｂｂの爪部６Ｂｃが第２絶縁体部５Ｂの第２摺動固定部５Ｂｄに嵌合する。 Next, the operation of the current detection device of the second embodiment configured as described above will be explained. First, as shown in FIG. 4(a), the second insulator section 5B is vertically slid in a direction away from the first insulator section 1B to open it. Next, as shown in FIGS. 4(b) and 5(a), after inserting the conductor 10 into the center, slide the second insulator part 5B vertically in the direction approaching the first insulator part 1B. move it to the closed position. Thereafter, the fixed part 6B is slid in the lateral direction, and as shown in FIG. It fits into the fixed part 5Bd.

この動作と同時に、図５（ｃ）に示すように、固定部品６Ｂの固定開口側閉固定部６Ｂｄ１が第２絶縁体部５Ｂの第２開口側閉固定部５Ｂｅ１に篏合するとともに、固定部品６Ｂの固定摺動側閉固定部６Ｂｄ２が第２絶縁体部５Ｂの第２摺動側閉固定部５Ｂｅ２に嵌合することで固定することができる。 At the same time as this operation, as shown in FIG. 5(c), the fixed opening side closing fixing part 6Bd1 of the fixed part 6B is engaged with the second opening side closing fixing part 5Be1 of the second insulator part 5B, and the fixed part The fixed sliding side closing fixing part 6Bd2 of 6B can be fixed by fitting into the second sliding side closing fixing part 5Be2 of the second insulator part 5B.

このように第２の実施形態の電流検出装置によれば、第１の実施形態の電流検出装置に比べ、固定部品６Ｂおよび第２絶縁体部５Ｂの閉固定部が複数個所になり、固定部品６Ｂの摺動による固定で複数個所を固定することができるため、より信頼性を高めることができる。 As described above, according to the current detection device of the second embodiment, compared to the current detection device of the first embodiment, the fixed part 6B and the second insulator part 5B have multiple closed and fixed parts, and the fixed part Since multiple locations can be fixed by sliding the 6B, reliability can be further improved.

（第３の実施形態）
図７（ａ）は、本発明の第３の実施形態に係る電流検出装置の斜視図、図７（ｂ）～図７（ｄ）は、組立断面図である。 (Third embodiment)
FIG. 7(a) is a perspective view of a current detection device according to a third embodiment of the present invention, and FIGS. 7(b) to 7(d) are assembled sectional views.

第３の実施形態に係る電流検出装置は、第１の実施形態の電流検出装置に、さらに、第２絶縁体部５Ｃの第２開口側閉固定部５Ｃｅの近傍に、閉状態を検出するための開口側閉固定検出部３０１を取り付ける第２開口側検出取付部５Ｃｆが設けられている。開口側閉固定検出部３０１は、第２絶縁体部５Ｃの第２開口側検出取付部５Ｃｆおよび溝部に挿入され、第２絶縁体部５Ｃの第２開口側閉固定部５Ｃｅの近傍から電流検出部３Ｃの近傍まで延伸している。 The current detection device according to the third embodiment is provided in addition to the current detection device of the first embodiment in order to detect the closed state in the vicinity of the second opening side closing fixing portion 5Ce of the second insulator portion 5C. A second opening side detection mounting part 5Cf is provided to which the opening side closed fixed detection part 301 is attached. The opening side closed fixing detection section 301 is inserted into the second opening side detection mounting section 5Cf and the groove of the second insulator section 5C, and detects current from the vicinity of the second opening side closing fixing section 5Ce of the second insulator section 5C. It extends to the vicinity of part 3C.

次に、このように構成された第３の実施形態の電流検出装置の動作を説明する。まず、開状態にある固定部品６Ｃを横方向に摺動して図７（ｄ）に示すように閉状態にするとき、固定部品６Ｃの固定摺動固定部６Ｃｂの爪部６Ｃｃが第２絶縁体部５Ｃの第２摺動固定部５Ｃｄに嵌合する。この動作と同時に、固定部品６Ｃの固定開口側閉固定部６Ｃｄが第２絶縁体部５Ｃの第２開口側閉固定部５Ｃｅに嵌合するときに、固定部品６Ｃの固定開口側閉固定部６Ｃｄが開口側閉固定検出部３０１に接触して閉状態を検出することができる。 Next, the operation of the current detection device of the third embodiment configured as described above will be explained. First, when the fixed component 6C in the open state is slid laterally to the closed state as shown in FIG. It fits into the second sliding fixed part 5Cd of the body part 5C. At the same time as this operation, when the fixed opening side closing fixing part 6Cd of the fixed part 6C fits into the second opening side closing fixing part 5Ce of the second insulator part 5C, the fixed opening side closing fixing part 6Cd of the fixing part 6C can detect the closed state by contacting the opening-side closed/fixed detection section 301.

このように第３の実施形態の電流検出装置によれば、第１の実施形態の電流検出装置に比べ、閉固定時の検出ができるため、確実に電流検出装置を固定していることを認識できるため、信頼性を高めることができる。 In this way, according to the current detection device of the third embodiment, compared to the current detection device of the first embodiment, it is possible to detect when the current detection device is closed and fixed, so that it is possible to reliably recognize that the current detection device is fixed. Therefore, reliability can be improved.

（第４の実施形態）
図８（ａ）は、本発明の第４の実施形態に係る電流検出装置の斜視図、図８（ｂ）～図８（ｄ）は、組立断面図である。 (Fourth embodiment)
FIG. 8(a) is a perspective view of a current detection device according to a fourth embodiment of the present invention, and FIGS. 8(b) to 8(d) are assembled sectional views.

第４の実施形態に係る電流検出装置は、第２の実施形態に係る電流検出装置に、さらに、第２絶縁体部５Ｄの第２開口側閉固定部５Ｄｅ１の近傍に、閉状態を検出するための開口側閉固定検出部４０１を取り付ける第２開口側検出取付部５Ｄｆ１を設けている。 The current detection device according to the fourth embodiment further detects a closed state in the vicinity of the second opening side closing fixing portion 5De1 of the second insulator portion 5D in addition to the current detection device according to the second embodiment. A second opening side detection mounting part 5Df1 is provided to which the opening side closed fixed detection part 401 is attached.

また、第２絶縁体部５Ｄの第２摺動側閉固定部５Ｄｅ２の近傍に、閉状態を検出するための摺動側閉固定検出部４０２を取り付ける第２摺動側検出取付部５Ｄｆ２を設けている。そして、開口側閉固定検出部４０１は、第２開口側検出取付部５Ｄｆ１および溝部に挿入され、摺動側閉固定検出部４０２は、第２摺動側検出取付部５Ｄｆ２および溝部に挿入され、電流検出部３Ｄの近傍まで延伸している。 Further, a second sliding side detection mounting portion 5Df2 is provided near the second sliding side closing and fixing portion 5De2 of the second insulator portion 5D to attach a sliding side closing and fixing detection portion 402 for detecting the closed state. ing. The opening side closed/fixed detection section 401 is inserted into the second opening side detection mounting section 5Df1 and the groove, and the sliding side closed/fixed detection section 402 is inserted into the second sliding side detection mounting section 5Df2 and the groove. It extends to the vicinity of the current detection section 3D.

次に、このように構成された第４の実施形態の電流検出装置の動作を説明する。まず、開状態にある固定部品６Ｄを横方向に摺動して図８（ｄ）に示すように閉状態にするとき、固定部品６Ｄの固定摺動固定部６Ｄｂの爪部６Ｄcが第２絶縁体部５Ｄの第２摺動固定部５Ｄｄに嵌合する。 Next, the operation of the current detection device of the fourth embodiment configured as described above will be explained. First, when the fixed part 6D in the open state is slid laterally to the closed state as shown in FIG. It fits into the second sliding fixed part 5Dd of the body part 5D.

この動作と同時に、固定部品６Ｄの固定開口側閉固定部６Ｄｄ１が第２絶縁体部５Ｄの第２開口側閉固定部５Ｄｅ１に嵌合するときに、固定部品６Ｄの固定開口側閉固定部６Ｄｄ１が開口側閉固定検出部４０１に接触して閉状態を検出することができる。 Simultaneously with this operation, when the fixed opening side closing fixing part 6Dd1 of the fixing part 6D is fitted into the second opening side closing fixing part 5De1 of the second insulator part 5D, the fixed opening side closing fixing part 6Dd1 of the fixing part 6D can detect the closed state by contacting the opening-side closed/fixed detection section 401.

この動作と同時に、固定部品６Ｄの固定摺動側閉固定部６Ｄｄ２が第２絶縁体部５Ｄの第２摺動側閉固定部５Ｄｅ２に嵌合するときに、固定部品６Ｄの固定摺動側閉固定部６Ｄｄ２が摺動側閉固定検出部４０２に接触して閉状態を検出することができる。 Simultaneously with this operation, when the fixed sliding side closing fixing part 6Dd2 of the fixed part 6D is fitted into the second sliding side closing fixing part 5De2 of the second insulator part 5D, the fixed sliding side closing part 6D of the fixed part 6D The fixed part 6Dd2 can contact the sliding side closed fixed detection part 402 to detect the closed state.

第４の実施形態の電流検出装置では、閉固定部、検出取付部および閉固定検出部について、２箇所に設けられた例を説明したが、閉固定部、検出取付部および閉固定検出部を２箇所以上設けてもよい。 In the current detection device of the fourth embodiment, an example has been described in which the closed fixing part, the detection mounting part, and the closed fixing detection part are provided in two places. Two or more locations may be provided.

（第５の実施形態）
図９は、本発明の第５の実施形態に係る電力量計のブロック図である。本発明の第５の実施形態に係る電力量計は、上述した第１の実施形態乃至第４の実施形態に係る電流検出装置を利用した電力量計である。この電力量計は、電流検出装置５１、電圧検出部５２、電力演算部５３、表示部５４、閉固定検出部５５、記録部５６、通信装置５７を備えている。 (Fifth embodiment)
FIG. 9 is a block diagram of a power meter according to a fifth embodiment of the present invention. A watt-hour meter according to a fifth embodiment of the present invention is a watt-hour meter that uses the current detection device according to the first to fourth embodiments described above. This power meter includes a current detection device 51, a voltage detection section 52, a power calculation section 53, a display section 54, a closed/fixed detection section 55, a recording section 56, and a communication device 57.

電流検出装置５１としては、上述した第１の実施形態乃至第４の実施形態に係る電流検出装置のいずれかが利用される。電流検出装置５１は、需要家の負荷にて使用される使用電流（ＡＩ）を検出し、当該使用電流に応じた電気信号に変換し出力する。 As the current detection device 51, any of the current detection devices according to the first embodiment to the fourth embodiment described above is used. The current detection device 51 detects the current used by the consumer's load (AI), converts it into an electrical signal corresponding to the current used, and outputs the electrical signal.

電圧検出部５２は、被測定系の電圧を検出する部分であり、電圧トランスやアテネッタ等の分圧抵抗器等により構成されており、需要家の負荷にて使用される使用電圧（ＶＩ）を検出し、当該使用電圧に正比例した低レベルの電圧信号に変換し出力する。 The voltage detection unit 52 is a part that detects the voltage of the system under test, and is composed of a voltage transformer, a voltage dividing resistor such as an attenuator, etc., and detects the working voltage (VI) used by the consumer's load. It detects it, converts it into a low-level voltage signal that is directly proportional to the used voltage, and outputs it.

電力演算部５３は、電流検出装置５１により検出された導体１０に流れる電流と、電圧検出部５２により検出された導体１０の電圧とに基づいて、電力量を演算する。具体的には、電力演算部５３は、デジタル乗算回路やＤＳＰ（デジタルシグナルプロセッサ）等により構成されており、電流検出装置５１から出力された使用電流（ＡＩ）に関する信号と、電圧検出部５２から出力された使用電圧（ＶＩ）に関する信号とを乗算し、需要家の使用電力に正比例したデータ（ＡＩ・ＶＩ）に変換する。 The power calculation unit 53 calculates the amount of power based on the current flowing through the conductor 10 detected by the current detection device 51 and the voltage of the conductor 10 detected by the voltage detection unit 52. Specifically, the power calculation unit 53 is configured with a digital multiplication circuit, a DSP (digital signal processor), etc., and receives a signal related to the current used (AI) output from the current detection device 51 and a signal from the voltage detection unit 52. It is multiplied by the output signal related to the working voltage (VI) and converted into data (AI/VI) that is directly proportional to the power used by the consumer.

さらに電力演算部５３は、使用電力に正比例したデータ（ＡＩ・ＶＩ）の演算結果を使用量データとして編集し出力する。なお、ここで使用量データとは需要家の負荷にて使用される総積算使用電力量ならびに各時間帯毎の時間帯使用量等、需要家の使用電力に関するデータを言う。 Further, the power calculation unit 53 edits and outputs the calculation result of data (AI/VI) directly proportional to the power usage as usage data. Note that the usage data here refers to data related to the power usage of the consumer, such as the total integrated power usage used by the consumer's load and the time slot usage for each time slot.

この使用量データは記録保持装置等により構成された記録部５６に記録され、液晶表示器等により構成された表示部５４に使用量データを表示する。また、閉固定検出部５５により電流検出装置５１の開閉状態についても記録部５６に記録される。記録部５６に記録された使用量データおよび開閉状態記録については、通信装置５７により、センター装置５８に通報することができる。 This usage data is recorded in a recording section 56 made up of a record holding device or the like, and is displayed on a display section 54 made up of a liquid crystal display or the like. Further, the open/close state of the current detection device 51 is also recorded in the recording unit 56 by the closed/fixed detection unit 55 . The usage data and the opening/closing state records recorded in the recording section 56 can be reported to the center device 58 through the communication device 57 .

以上説明したように、本発明の第５の実施形態に係る電力量計によれば、電力量計組立時の電流検出装置組込み時に電流検出装置が確実に取付られていることを確認できる上、需要家での使用状態中に電流検出装置が万が一外れた場合においても、電流検出装置の外れを検出して表示部で異常を表示したり、通信装置５７によりセンター装置５８に異常発生の通報をすることができる。 As explained above, according to the watt-hour meter according to the fifth embodiment of the present invention, it is possible to confirm that the current detection device is reliably attached when installing the current detection device when assembling the watt-hour meter, and Even if the current detection device should come off while in use at a customer, the disconnection of the current detection device will be detected and the abnormality will be displayed on the display, and the communication device 57 will notify the center device 58 of the occurrence of the abnormality. can do.

１Ａ～１Ｄ第１絶縁体部
１Ａａ～１Ｂａ第１磁性体取付部
１Ａｂ～１Ｄｂ第１絶縁摺動部
１Ａｃ～１Ｄｃ第１固定摺動部
２Ａ～２Ｄ第１磁性体部
３Ａ～３Ｄ電流検出部
４Ａ～４Ｄ第２磁性体部
５Ａ～５Ｄ第２絶縁体部
５Ａａ～５Ｄａ第２電流検出取付部
５Ａｂ～５Ｄｂ第２磁性体取付部
５Ａｃ～５Ｄｃ第２絶縁摺動部
５Ａｄ～５Ｄｄ第２摺動固定部
５Ａｅ，５Ｂｅ１，５Ｃｅ，５Ｄｅ１第２開口側閉固定部
５Ｃｆ，５Ｄｆ１第２開口側検出取付部
５Ｂｅ２，５Ｄｅ２第２摺動側閉固定部
５Ｄｆ２第２摺動側検出取付部
６Ａ～６Ｄ固定部品
６Ａａ～６Ｄａ固定摺動部
６Ａｂ～６Ｄｂ固定摺動固定部
６Ａｃ～６Ｄｃ固定爪部
６Ａｄ，６Ｂｄ１，６Ｃｄ，６Ｄｄ１固定開口側閉固定部
６Ｂｄ２，６Ｄｄ２固定摺動側閉固定部
１０導体
５１電流検出装置
５２電圧検出部
５３電力演算部
５４表示部
５５閉固定検出部
５６記録部
５７通信装置
５８センター装置
３０１，４０１開口側閉固定検出部
４０２摺動側閉固定検出部 1A to 1D First insulator parts 1Aa to 1Ba First magnetic body attachment parts 1Ab to 1Db First insulating sliding parts 1Ac to 1Dc First fixed sliding parts 2A to 2D First magnetic body parts 3A to 3D Current detection part 4A ~4D Second magnetic body parts 5A to 5D Second insulator parts 5Aa to 5Da Second current detection mounting parts 5Ab to 5Db Second magnetic body mounting parts 5Ac to 5Dc Second insulating sliding parts 5Ad to 5Dd Second sliding fixation Parts 5Ae, 5Be1, 5Ce, 5De1 Second opening side closing fixing parts 5Cf, 5Df1 Second opening side detection mounting parts 5Be2, 5De2 Second sliding side closing fixing parts 5Df2 Second sliding side detection mounting parts 6A to 6D Fixed parts 6Aa to 6Da Fixed sliding parts 6Ab to 6Db Fixed sliding fixed parts 6Ac to 6Dc Fixed claw parts 6Ad, 6Bd1, 6Cd, 6Dd1 Fixed opening side closing fixing parts 6Bd2, 6Dd2 Fixed sliding side closing fixing parts 10 Conductor 51 Current detection device 52 Voltage detection section 53 Power calculation section 54 Display section 55 Closed fixation detection section 56 Recording section 57 Communication device 58 Center device 301, 401 Opening side closed fixation detection section 402 Sliding side closed fixation detection section

Claims

導体を流れる被測定電流の方向に直交する面上で該導体の周囲を囲むように配置され磁気回路の一部を形成する第１磁性体部、該第１磁性体部と対向配置した第２磁性体部と、
前記磁気回路の磁路に配置され磁界を検出する電流検出部と、
前記第１磁性体部を取付ける第１磁性体取付部、第１絶縁摺動部、第１固定摺動部を有する第１絶縁体部と、
前記電流検出部を取付ける第２電流検出取付部、前記第２磁性体部を取付ける第２磁性体取付部、前記第１絶縁体部の第１絶縁摺動部に嵌合して摺動する第２絶縁摺動部、第２摺動固定部、第２開口側閉固定部を有した第２絶縁体部と、
前記第１絶縁体部の第１固定摺動部に嵌合して摺動する固定摺動部、前記第２絶縁体部の第２摺動固定部に嵌合して摺動を固定する先端に爪部を有したスナップフィット構造の固定摺動固定部、前記第２絶縁体部の第２開口側閉固定部に嵌合して固定する固定開口側閉固定部を有する固定部品とを備え、
前記第１絶縁体部から離れる方向に前記第２絶縁体部を摺動して開状態にし、前記導体を中央部に挿入した後、前記第１絶縁体部に近づく方向に前記第２絶縁体部を摺動して閉状態にした後、前記固定部品を摺動して、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に嵌合することを特徴とする電流検出装置。 A first magnetic body part that is arranged to surround the conductor on a plane perpendicular to the direction of the current to be measured flowing through the conductor and forms a part of a magnetic circuit, and a second magnetic body part that is arranged opposite to the first magnetic body part. a magnetic body part;
a current detection unit that is arranged in a magnetic path of the magnetic circuit and detects a magnetic field;
a first insulator part having a first magnetic body attachment part to which the first magnetic body part is attached, a first insulating sliding part, and a first fixed sliding part;
A second current detection mounting part to which the current detection part is attached, a second magnetic body attachment part to which the second magnetic body part is attached, and a first insulating sliding part that fits and slides on the first insulation sliding part of the first insulator part. a second insulator portion having a second insulating sliding portion, a second sliding fixing portion, and a second opening side closing fixing portion;
a fixed sliding part that fits into and slides on a first fixed sliding part of the first insulator part; a tip that fits into a second sliding fixed part of the second insulator part to fix sliding; a fixed sliding fixing part with a snap-fit structure having a claw part, and a fixing part having a fixed opening side closing fixing part that fits and fixes to the second opening side closing fixing part of the second insulator part. ,
After sliding the second insulator part in the direction away from the first insulator part to open it and inserting the conductor into the central part, slide the second insulator part in the direction approaching the first insulator part. After sliding the part into the closed state, sliding the fixing part so that the claw part of the fixing sliding fixing part of the fixing part fits into the second sliding fixing part of the second insulator part. At the same time, the fixed opening side closing fixing part of the fixed component fits into the second opening side closing fixing part of the second insulator part.

前記第２絶縁体部に第２摺動側閉固定部を設け、前記固定部品に前記第２絶縁体部の第２摺動側閉固定部に対応して固定摺動側閉固定部を設け、
開状態にある前記固定部品を摺動して閉状態にするとき、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に篏合するとともに、前記固定部品の固定摺動側閉固定部が前記第２絶縁体部の第２摺動側閉固定部に嵌合することを特徴とする請求項１記載の電流検出装置。 A second sliding side closing fixing part is provided in the second insulator part, and a fixed sliding side closing fixing part is provided in the fixed part corresponding to the second sliding side closing fixing part of the second insulator part. ,
When the fixed part in the open state is slid to the closed state, the claw part of the fixed sliding fixing part of the fixed part is fitted into the second sliding fixing part of the second insulator part, and at the same time, The fixed opening side closing fixing part of the fixed part engages with the second opening side closing fixing part of the second insulator part, and the fixed sliding side closing fixing part of the fixed part engages with the second opening side closing fixing part of the second insulator part. The current detecting device according to claim 1, wherein the current detecting device is fitted into the second sliding side closing fixing portion.

前記第２絶縁体部の第２開口側閉固定部の近傍に、開口側閉固定検出部を取り付ける第２開口側検出取付部を設け、前記第２開口側検出取付部に前記開口側閉固定検出部を取付け、
開状態にある前記固定部品を摺動して閉状態にするとき、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に嵌合するときに、前記固定部品の固定開口側閉固定部が前記開口側閉固定検出部に接触して閉状態を検出することを特徴とする請求項１記載の電流検出装置。 A second opening side detection mounting part for attaching an opening side closed fixation detection part is provided near the second opening side closed fixation part of the second insulator part, and the opening side closed fixation part is attached to the second opening side detection mounting part. Install the detection part,
When the fixed part in the open state is slid to the closed state, the claw part of the fixed sliding fixing part of the fixed part is fitted into the second sliding fixing part of the second insulator part, and at the same time, When the fixed opening side closing fixing part of the fixed part fits into the second opening side closing fixing part of the second insulator part, the fixed opening side closing fixing part of the fixed part fits into the opening side closing fixing detection part. 2. The current detection device according to claim 1, wherein the current detection device detects the closed state by contacting the current detection device.

前記第２絶縁体部の第２開口側閉固定部の近傍に、開口側閉固定検出部を取り付ける第２開口側検出取付部を設け、前記第２絶縁体部の第２摺動側閉固定部の近傍に、摺動側閉固定検出部を取り付ける第２摺動側検出取付部を設け、前記第２開口側検出取付部に開口側閉固定検出部を設け、
第２摺動側検出取付部に摺動側閉固定検出部を取付け、開状態にある前記固定部品を摺動して閉状態にするとき、前記固定部品の固定摺動固定部の爪部が前記第２絶縁体部の第２摺動固定部に嵌合すると同時に、前記固定部品の固定開口側閉固定部が前記第２絶縁体部の第２開口側閉固定部に嵌合するときに、前記固定部品の固定開口側閉固定部が前記開口側閉固定検出部に接触して閉状態を検出すると同時に、前記固定部品の固定摺動側閉固定部が前記第２絶縁体部の第２摺動側閉固定部に嵌合するときに、前記固定部品の固定摺動側閉固定部が前記摺動側閉固定検出部に接触して閉状態を検出することを特徴とする請求項２記載の電流検出装置。 A second opening side detection mounting part for attaching an opening side closed fixing detection part is provided near the second opening side closing fixing part of the second insulator part, and the second sliding side closing fixation part of the second insulator part is provided. a second sliding side detection mounting part to which a sliding side closed/fixed detection part is attached near the part; an opening side closed/fixed detection part is provided in the second opening side detection mounting part;
When a sliding side close fixing detection part is attached to the second sliding side detection mounting part, and the fixed part which is in the open state is slid to the closed state, the claw part of the fixed sliding fixing part of the fixed part is When the fixed opening side closing fixing part of the fixing component fits into the second opening side closing fixing part of the second insulator part at the same time as fitting into the second sliding fixing part of the second insulator part. At the same time, the fixed opening side closing fixing part of the fixed component contacts the opening side closing fixing detection part to detect the closed state, and at the same time, the fixed sliding side closing fixing part of the fixed part contacts the second insulator part. 2. A fixed sliding side closing fixing part of the fixing component contacts the sliding side closing fixing detection part to detect the closed state when the fixing part is fitted into the sliding side closing fixing part. 2. The current detection device according to 2.

請求項１乃至請求項４のいずれか１項記載の電流検出装置と、
導体に発生する電圧を検出する電圧検出部と、
前記電流検出装置により検出された電流と前記電圧検出部で検出された電圧とに基づき電力又は電力量を算出する電力演算部とを備えることを特徴とする電力量計。 The current detection device according to any one of claims 1 to 4,
a voltage detection unit that detects the voltage generated in the conductor;
A power meter comprising: a power calculation unit that calculates electric power or electric energy based on the current detected by the current detection device and the voltage detected by the voltage detection unit.