JP2021043136A

JP2021043136A - Electricity meter

Info

Publication number: JP2021043136A
Application number: JP2019167135A
Authority: JP
Inventors: 良知　慎一; Shinichi Rachi; 慎一良知
Original assignee: Toshiba Toko Meter Systems Co Ltd
Current assignee: Toshiba Toko Meter Systems Co Ltd
Priority date: 2019-09-13
Filing date: 2019-09-13
Publication date: 2021-03-18

Abstract

To provide an electricity meter that can be used according to purposes by changing the shape of one cover.SOLUTION: The electricity meter includes: measuring devices 5 and 6 for measuring the amount of electricity; communication devices 12 and 13 attached to the measuring devices, the communication devices sending the amount of electricity measured by the measuring devices to the outside; a cover 7 over the measuring devices and the communication devices; and an extension cover 15 being attachable to the cover 7. The cover 7 has an extension cover attachment unit 7c for attaching the extension cover 15, and the extension cover 15 has a cover attachment unit 15b for being attached to the extension cover attachment unit 7c.SELECTED DRAWING: Figure 1

Description

本発明は、電力量計に関する。 The present invention relates to an electric energy meter.

従来、電力量計は、計量装置と、計量装置に取り付けられ且つ計量装置で計量された電力量を外部に送信する通信装置を有している。 Conventionally, a watt-hour meter has a measuring device and a communication device attached to the measuring device and transmitting the amount of electric power measured by the measuring device to the outside.

図１０は、従来の電力量計の斜視図である。図１０（ａ）、図１０（ｂ）は電力量計の外観を示し、図１０（ｃ）はカバー７を取り外して、通信装置をベース６に取り付けた状態を示し、図１０（ｄ）は通信装置を取り外した状態を示す。 FIG. 10 is a perspective view of a conventional watt hour meter. 10 (a) and 10 (b) show the appearance of the watt-hour meter, FIG. 10 (c) shows the state where the cover 7 is removed and the communication device is attached to the base 6, and FIG. 10 (d) shows the state. Indicates the state in which the communication device is removed.

計量装置は、図１１に示すように、電力量を表示する表示部１ａ及び通信装置接続用コネクタ１ｂを有する回路部１と、電流線取付ねじ２を有する導体部３と、導体部３に流れる電流を検出するセンサ部４と、これらを収納するケース５と、ベース６と、カバー７を有している。カバー７にはカバー取付ねじ８が取付けられ、ベース６には、コネクタ通し穴６ａと通信装置取付部６ｂと電流線通し穴６ｃが設けられている。 As shown in FIG. 11, the measuring device flows through the circuit unit 1 having the display unit 1a displaying the electric energy and the connector 1b for connecting the communication device, the conductor unit 3 having the current line mounting screw 2, and the conductor unit 3. It has a sensor unit 4 for detecting an electric current, a case 5 for accommodating the sensor unit 4, a base 6, and a cover 7. A cover mounting screw 8 is attached to the cover 7, and the base 6 is provided with a connector through hole 6a, a communication device mounting portion 6b, and a current line through hole 6c.

通信装置は、図１２に示すように、回路部９のケーブル接続用コネクタ９ｂにケーブル１０の回路部接続用コネクタ１０ｂを接続し、回路部９のＬＥＤ９ａの光を導光するＬＥＤ導光部１１を上ケース１２のＬＥＤ導光用穴１２ａに取付け、回路部９を上ケース１２と下ケース１３内に収納して形成される。 As shown in FIG. 12, the communication device connects the circuit unit connection connector 10b of the cable 10 to the cable connection connector 9b of the circuit unit 9, and guides the light of the LED 9a of the circuit unit 9 to the LED light guide unit 11. Is attached to the LED light guide hole 12a of the upper case 12, and the circuit portion 9 is housed in the upper case 12 and the lower case 13.

通信装置の計量装置接続用コネクタ１０ａを計量装置のベース６のコネクタ通し穴６ａを通して、回路部１の通信装置接続用コネクタ１ｂに接続し、通信装置の下ケース１３の計量装置取付部１３ａを、計量装置のベース６の通信装置取付部６ｂに嵌合させ、カバー７をカバー取付ねじ８でベース６に取り付けることで電力量計が組立てられる。 The connector 10a for connecting the weighing device of the communication device is connected to the communication device connecting connector 1b of the circuit unit 1 through the connector through hole 6a of the base 6 of the measuring device, and the measuring device mounting portion 13a of the lower case 13 of the communication device is connected. A watt hour meter is assembled by fitting the base 6 of the weighing device into the communication device mounting portion 6b and attaching the cover 7 to the base 6 with the cover mounting screws 8.

電力量計の設置作業時において、カバーの長さが異なる２種類の電力量計を用意し、現地の設置環境（雨線内か雨線外か、スペースが広いか狭いか等）に応じて、いずれの電力量計を使用するか選択する必要があった。 When installing the watt-hour meter, prepare two types of watt-hour meters with different cover lengths, depending on the local installation environment (inside or outside the rainline, whether the space is wide or narrow, etc.). , It was necessary to choose which watt-hour meter to use.

なお、従来技術として、端子部保護カバーとして取り付けられる電力量計が知られている（特許文献１）。 As a prior art, a watt-hour meter attached as a terminal protection cover is known (Patent Document 1).

特許第５９７７０６８号公報Japanese Patent No. 5977068

しかしながら、電力量計の設置作業時において、カバーの長さが異なる２種類の電力量計を用意し、現地の設置環境（雨線内か雨線外か、スペースが広いか狭いか等）に応じて、いずれの電力量計を使用するか選択する必要があった。このため、在庫管理や作業効率の低下から取付工事費のコストアップが懸念されている。 However, when installing the watt-hour meter, prepare two types of watt-hour meters with different cover lengths for the local installation environment (inside or outside the rainline, whether the space is wide or narrow, etc.). Therefore, it was necessary to select which watt-hour meter to use. For this reason, there is a concern that the installation cost will increase due to inventory management and a decrease in work efficiency.

本発明の課題は、用途に応じて一つのカバーの形状を変更して利用することができる電力量計を提供する。 An object of the present invention is to provide a watt-hour meter that can be used by changing the shape of one cover according to an application.

上記課題を解決するために、本発明の請求項１は、電力量を計量する計量装置と、前記計量装置に取り付けられ且つ前記計量装置で計量された電力量を外部に送信する通信装置と、前記計量装置及び前記通信装置を覆うカバーと、前記カバーに取り付け可能な延長カバーを有し、前記カバーは、延長カバーを取り付けるための延長カバー取付部を有し、前記延長カバーは、前記延長カバー取付部に取り付けるためのカバー取付部を有することを特徴とする。 In order to solve the above problems, claim 1 of the present invention includes a measuring device for measuring an electric energy, a communication device attached to the measuring device and transmitting the electric energy measured by the measuring device to the outside. It has a cover that covers the weighing device and the communication device, and an extension cover that can be attached to the cover. The cover has an extension cover attachment portion for attaching the extension cover, and the extension cover is the extension cover. It is characterized by having a cover mounting portion for mounting on the mounting portion.

請求項２は、前記カバーに、前記延長カバー取付部を複数設け、前記延長カバーに設けられた前記カバー取付部は、前記カバーに設けられた複数の延長カバー取付部のいずれかに取り付けることにより、取付位置を変更できることを特徴とする。 According to claim 2, a plurality of the extension cover mounting portions are provided on the cover, and the cover mounting portions provided on the extension cover are mounted on any of the plurality of extension cover mounting portions provided on the cover. The feature is that the mounting position can be changed.

請求項３は、前記カバーに、前記複数の延長カバー取付部間を連結するスライド部を設け、前記スライド部は、前記延長カバーの前記カバー取付部をスライドさせて、前記カバー取付部を前記複数のいずれかの延長カバー取付部に取り付けることにより、取付位置を変更できることを特徴とする。 According to claim 3, the cover is provided with a slide portion for connecting the plurality of extension cover mounting portions, and the slide portion slides the cover mounting portion of the extension cover to form the cover mounting portions. The feature is that the mounting position can be changed by mounting it on any of the extension cover mounting portions.

請求項４は、前記複数の延長カバー取付部と前記スライド部を有するカバー連結部を、カバー側面と平行に隙間を設けるようにしてカバー内側に設け、カバー連結部とカバー側面の間に設けられた隙間に、延長カバー側面が挿入され、延長カバーのカバー取付部が、カバー連結部に設けられた延長カバー取付部に取付けることができることを特徴とする。 According to claim 4, the cover connecting portion having the plurality of extension cover mounting portions and the sliding portion is provided inside the cover so as to provide a gap parallel to the side surface of the cover, and is provided between the cover connecting portion and the side surface of the cover. The side surface of the extension cover is inserted into the gap, and the cover mounting portion of the extension cover can be mounted on the extension cover mounting portion provided in the cover connecting portion.

請求項５は、前記延長カバーの前記カバー取付部は、前記延長カバーを回転できる回転用凸部と、前記延長カバーの位置を固定できる固定用凸部を有し、前記カバーの前記延長カバー取付部は、前記回転用凸部に嵌合する回転用凹部と、前記固定用凸部に嵌合する固定用凹部を有することを特徴とする。 According to claim 5, the cover mounting portion of the extension cover has a rotating convex portion capable of rotating the extension cover and a fixing convex portion capable of fixing the position of the extension cover, and the extension cover mounting portion of the cover. The portion is characterized by having a rotating concave portion that fits into the rotating convex portion and a fixing concave portion that fits into the fixing convex portion.

請求項１の発明によれば、電力量計の設置作業時において、１種類の電力量計を用意するだけで、カバーの長さを変更できるため、以前のように２台の電力量計を用意する必要がなくなる。また、延長カバーを利用する場合には何も持ち帰る必要がなく、延長カバーを利用しない場合でも、延長カバーを取り外して持ち帰るのみなので、電力量計を持ち帰るよりは容易であり、電力量計取付作業の作業性を向上することができる。 According to the invention of claim 1, when installing the watt-hour meter, the length of the cover can be changed only by preparing one type of watt-hour meter. Therefore, two watt-hour meters can be used as before. There is no need to prepare. Also, when using the extension cover, there is no need to take anything home, and even if the extension cover is not used, the extension cover is simply removed and taken home, so it is easier than taking the watt-hour meter home. Workability can be improved.

請求項２の発明によれば、請求項１に比べて、必要な長さに応じて延長カバーを利用できるため、何も持ち帰る必要がなく、電力量計取付作業の作業性を向上することができる。 According to the invention of claim 2, since the extension cover can be used according to the required length as compared with claim 1, it is not necessary to bring back anything, and the workability of the watt hour meter mounting work can be improved. it can.

請求項３の発明によれば、請求項２に比べて、延長カバーをカバーから取り外すことなく、延長カバーの取付位置を変更できるため、延長カバーを紛失することがなくなり、電力量計取付作業の作業性を向上することができる。 According to the invention of claim 3, as compared with claim 2, since the mounting position of the extension cover can be changed without removing the extension cover from the cover, the extension cover is not lost and the watt hour meter mounting work can be performed. Workability can be improved.

請求項４の発明によれば、請求項３に比べて、延長カバーをカバーから取り外し難くしており、延長カバーを紛失することがなくなり、電力量計取付作業の作業性を向上することができる。 According to the invention of claim 4, as compared with claim 3, it is difficult to remove the extension cover from the cover, the extension cover is not lost, and the workability of the watt hour meter mounting work can be improved. ..

請求項５の発明によれば、延長カバーを回転動作させてカバーの長さを切り替えることができるため、電力量計取付作業の作業性を向上することができる。 According to the invention of claim 5, since the extension cover can be rotated to switch the length of the cover, the workability of the watt hour meter mounting work can be improved.

本発明の第１の実施形態に係る電力量計とカバーを示す斜視図である。It is a perspective view which shows the electric energy meter and the cover which concerns on 1st Embodiment of this invention. 本発明の第２の実施形態に係る電力量計とカバーを示す斜視図である。It is a perspective view which shows the electric energy meter and the cover which concerns on 2nd Embodiment of this invention. 本発明の第２の実施形態に係る電力量計のカバーを示す斜視図である。It is a perspective view which shows the cover of the electric energy meter which concerns on 2nd Embodiment of this invention. 本発明の第３の実施形態に係る電力量計のカバーを示す斜視図である。It is a perspective view which shows the cover of the electric energy meter which concerns on 3rd Embodiment of this invention. 本発明の第３の実施形態に係る電力量計のカバーを示す斜視図である。It is a perspective view which shows the cover of the electric energy meter which concerns on 3rd Embodiment of this invention. 本発明の第４の実施形態に係る電力量計のカバーを示す斜視図である。It is a perspective view which shows the cover of the electric energy meter which concerns on 4th Embodiment of this invention. 本発明の第４の実施形態に係る電力量計のカバーを示す斜視図である。It is a perspective view which shows the cover of the electric energy meter which concerns on 4th Embodiment of this invention. 本発明の第５の実施形態に係る電力量計とカバーを示す斜視図である。It is a perspective view which shows the electric energy meter and the cover which concerns on 5th Embodiment of this invention. 本発明の第５の実施形態に係る電力量計のカバーを示す斜視図である。It is a perspective view which shows the cover of the electric energy meter which concerns on 5th Embodiment of this invention. 従来の電力量計の斜視図である。It is a perspective view of the conventional watt hour meter. 従来の電力量計用計量装置の分解図である。It is an exploded view of the conventional measuring device for an electric energy meter. 従来の電力量計用通信装置の分解図である。It is an exploded view of the communication device for a conventional watt hour meter.

以下、本発明の実施の形態に係る電力量計について、図面を参照しながら詳細に説明する。 Hereinafter, the watt-hour meter according to the 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）は、カバー７Ａに延長カバー１５を取り付けていない電力量計を示す図である。図１（ｂ）は、カバー７Ａに延長カバー１５を取り付けた電力量計を示す図である。図１（ｃ）は、カバー７Ａに延長カバー１５を取付ける過程を示す図である。図１（ｄ）は、カバー７Ａに延長カバー１５を取り付けた状態を示す図である。 (First Embodiment)
FIG. 1A is a diagram showing a watt hour meter in which the extension cover 15 is not attached to the cover 7A. FIG. 1B is a diagram showing a watt hour meter in which an extension cover 15 is attached to a cover 7A. FIG. 1C is a diagram showing a process of attaching the extension cover 15 to the cover 7A. FIG. 1D is a diagram showing a state in which the extension cover 15 is attached to the cover 7A.

図１に示す電力量計は、ケース５とベース６を有する計量装置と、計量装置に取り付けられ且つ計量装置で計量された電力量を外部に送信する通信装置と、カバー７Ａと、延長カバー１５を有している。図１には通信装置は、図示していないが、図１に示す電力量計は、図１０に示すような上ケース１２と下ケース１３を設けた通信装置を有している。カバー７Ａは、計量装置及び通信装置を覆うもので、コの字状をなすカバー本体７ａと切欠部７ｂと延長カバー１５を取り付けるための延長カバー取付部７ｃを有している。延長カバー取付部７ｃは、カバー７Ａの左右２箇所（底面を含める場合あり）に設けられた溝部からなる。 The watt-hour meter shown in FIG. 1 includes a weighing device having a case 5 and a base 6, a communication device attached to the weighing device and transmitting the amount of power measured by the measuring device to the outside, a cover 7A, and an extension cover 15. have. Although the communication device is not shown in FIG. 1, the watt-hour meter shown in FIG. 1 has a communication device provided with an upper case 12 and a lower case 13 as shown in FIG. The cover 7A covers the weighing device and the communication device, and has a U-shaped cover main body 7a, a notch 7b, and an extension cover mounting portion 7c for mounting the extension cover 15. The extension cover mounting portion 7c is composed of grooves provided at two locations on the left and right sides of the cover 7A (the bottom surface may be included).

延長カバー１５は、コの字状をなすカバー本体１５ａと延長カバー取付部７ｃに取り付けるためのカバー取付部１５ｂと切欠部１５ｃを有している。カバー取付部１５ｂは、カバー本体１５ａから突起した突起部からなる。 The extension cover 15 has a U-shaped cover main body 15a, a cover mounting portion 15b for mounting on the extension cover mounting portion 7c, and a notch portion 15c. The cover mounting portion 15b is composed of a protruding portion protruding from the cover main body 15a.

このように構成された第１の実施形態に係る電力量計によれば、延長カバー１５を利用する場合には、図１（ｃ）に示すように、カバー取付部１５ｂの突起部を延長カバー取付部７ｃの溝部に嵌合させることで、図１（ｄ）に示すように、延長カバー１５をカバー７Ａに取り付けることができる。 According to the watt-hour meter according to the first embodiment configured in this way, when the extension cover 15 is used, as shown in FIG. 1 (c), the protrusion of the cover mounting portion 15b is extended as an extension cover. By fitting the extension cover 15 into the groove portion of the attachment portion 7c, the extension cover 15 can be attached to the cover 7A as shown in FIG. 1 (d).

電力量計の設置作業時において、１種類の電力量計を用意するだけで、カバーの長さを変更できるため、以前のように２台の電力量計を用意する必要がなくなる。また、延長カバー１５を利用する場合には何も持ち帰る必要がなく、延長カバー１５を利用しない場合でも、延長カバー１５を取り外して持ち帰るのみで、電力量計を持ち帰るよりは容易であり、電力量計取付作業の作業性を向上することができる。 When installing the watt-hour meter, the length of the cover can be changed by preparing only one type of watt-hour meter, so there is no need to prepare two watt-hour meters as before. Further, when using the extension cover 15, it is not necessary to take anything home, and even when the extension cover 15 is not used, it is easier than taking the watt-hour meter home by simply removing the extension cover 15 and taking it home. The workability of the meter mounting work can be improved.

（第２の実施形態）
図２（ａ）は、カバー７Ｂの第２の延長カバー取付部７ｃ２に延長カバー１５のカバー取付部１５ｂを取り付けた電力量計を示す図である。図２（ｂ）は、カバー７Ｂの第１の延長カバー取付部７ｃ１に延長カバー１５のカバー取付部１５ｂを取り付けた電力量計を示す図である。図２（ｃ）は、カバー７Ｂの第２の延長カバー取付部７ｃ２に延長カバー１５のカバー取付部１５ｂを取付ける過程を示す図である。図２（ｄ）は、カバー７Ｂの第２の延長カバー取付部７ｃ２に延長カバー１５のカバー取付部１５ｂを取り付けた状態を示す図である。 (Second embodiment)
FIG. 2A is a diagram showing a watt hour meter in which the cover mounting portion 15b of the extension cover 15 is attached to the second extension cover mounting portion 7c2 of the cover 7B. FIG. 2B is a diagram showing a watt hour meter in which the cover mounting portion 15b of the extension cover 15 is attached to the first extension cover mounting portion 7c1 of the cover 7B. FIG. 2C is a diagram showing a process of attaching the cover mounting portion 15b of the extension cover 15 to the second extension cover mounting portion 7c2 of the cover 7B. FIG. 2D is a diagram showing a state in which the cover mounting portion 15b of the extension cover 15 is attached to the second extension cover mounting portion 7c2 of the cover 7B.

図３（ｅ）は、カバー７Ｂの第１の延長カバー取付部７ｃ１に延長カバー１５のカバー取付部１５ｂを取付ける過程を示す図である。図３（ｆ）は、カバー７Ｂの第１の延長カバー取付部７ｃ１に延長カバー１５のカバー取付部１５ｂを取り付けた状態を示す図である。
カバー７Ｂは、図２（ｃ）に示すように、左右２箇所に設けられた第１の延長カバー取付部７ｃ１と、左右２箇所に設けられた第２の延長カバー取付部７ｃ２を有している。第２の延長カバー取付部７ｃ２は、第１の延長カバー取付部７ｃ１の位置に対して、垂直方向の異なる位置に設けられている。
なお、第２の実施形態では、延長カバー取付部を左右各々に２箇所設けたが、例えば、垂直方向の異なる位置に延長カバー取付部を左右各々に３箇所以上設けても良い。 FIG. 3E is a diagram showing a process of attaching the cover mounting portion 15b of the extension cover 15 to the first extension cover mounting portion 7c1 of the cover 7B. FIG. 3F is a diagram showing a state in which the cover mounting portion 15b of the extension cover 15 is attached to the first extension cover mounting portion 7c1 of the cover 7B.
As shown in FIG. 2C, the cover 7B has a first extension cover mounting portion 7c1 provided at two locations on the left and right, and a second extension cover mounting portion 7c2 provided at two locations on the left and right. There is. The second extension cover mounting portion 7c2 is provided at a position different from the position of the first extension cover mounting portion 7c1 in the vertical direction.
In the second embodiment, the extension cover mounting portions are provided at two locations on the left and right sides, but for example, the extension cover mounting portions may be provided at three or more locations on the left and right sides at different positions in the vertical direction.

延長カバー１５に有するカバー取付部１５ｂは、カバー７Ｂに有する複数の延長カバー取付部７ｃ１，７ｃ２に取り付けることにより取付位置を変更できる。 The attachment position of the cover attachment portion 15b included in the extension cover 15 can be changed by attaching the cover attachment portion 15b to the plurality of extension cover attachment portions 7c1 and 7c2 included in the cover 7B.

このように構成された第２の実施形態に係る電力量計によれば、図２（ｃ）に示すように、カバー取付部１５ｂの突起部を、第２の延長カバー取付部７ｃ２の溝部に嵌合させることで、図２（ｄ）に示すように、延長カバー１５をカバー７Ｂに取り付けることができる。この場合、延長カバー１５をカバー７Ｂ内に収納した状態になる。 According to the watt-hour meter according to the second embodiment configured in this way, as shown in FIG. 2C, the protrusion of the cover mounting portion 15b is formed in the groove portion of the second extension cover mounting portion 7c2. By fitting, the extension cover 15 can be attached to the cover 7B as shown in FIG. 2D. In this case, the extension cover 15 is stored in the cover 7B.

また、図３（ｅ）に示すように、カバー取付部１５ｂの突起部を第１の延長カバー取付部７ｃ１の溝部に嵌合させることで、図３（ｆ）に示すように、延長カバー１５をカバー７Ｂに取り付けることができる。この場合、延長カバー１５をカバー７Ｂよりも拡張して取り付けた状態になる。 Further, as shown in FIG. 3 (e), by fitting the protrusion of the cover mounting portion 15b into the groove portion of the first extension cover mounting portion 7c1, the extension cover 15 is fitted as shown in FIG. 3 (f). Can be attached to the cover 7B. In this case, the extension cover 15 is expanded and attached to the cover 7B.

即ち、必要な長さに応じて延長カバー１５を利用できるため、何も持ち帰る必要がなくなるため、電力量計取付作業の作業性を向上することができる。 That is, since the extension cover 15 can be used according to the required length, it is not necessary to bring back anything, so that the workability of the watt hour meter mounting work can be improved.

（第３の実施形態）
図４（ａ）は、カバー７Ｃの第２の延長カバー取付部７ｃ４に、延長カバー１５Ｂのカバー取付部１５ｂ１を取り付けた状態を示す図である。図４（ｂ）は、延長カバー１５Ｂのカバー取付部１５ｂ１が、カバー７Ｃの第２の延長カバー取付部７ｃ４からスライド部７ｄ１に移動した状態を示す図である。図４（ｃ）は、カバー７Ｃのカバー取付部１５ｂ１が、スライド部７ｄ１の第２の延長カバー取付部７ｃ４の位置から、第１の延長カバー取付部７ｃ３の位置まで移動した状態を示す図である。図４（ｄ）は、延長カバー１５Ｂのカバー取付部１５ｂ１が、カバー７Ｃのスライド部７ｄ１から第１の延長カバー取付部７ｃ３に移動して取り付けられた状態を示す図である。 (Third Embodiment)
FIG. 4A is a diagram showing a state in which the cover mounting portion 15b1 of the extension cover 15B is attached to the second extension cover mounting portion 7c4 of the cover 7C. FIG. 4B is a diagram showing a state in which the cover mounting portion 15b1 of the extension cover 15B is moved from the second extension cover mounting portion 7c4 of the cover 7C to the slide portion 7d1. FIG. 4C is a diagram showing a state in which the cover mounting portion 15b1 of the cover 7C has moved from the position of the second extension cover mounting portion 7c4 of the slide portion 7d1 to the position of the first extension cover mounting portion 7c3. is there. FIG. 4D is a diagram showing a state in which the cover mounting portion 15b1 of the extension cover 15B is moved from the slide portion 7d1 of the cover 7C to the first extension cover mounting portion 7c3 and mounted.

図５（ｅ）は、カバー７Cの詳細な構成を示す図である。図５（ｆ）は、延長カバー１５Bの詳細な構成を示す図である。 FIG. 5 (e) is a diagram showing a detailed configuration of the cover 7C. FIG. 5 (f) is a diagram showing a detailed configuration of the extension cover 15B.

カバー７Ｃは、図５（ｅ）に示すように、左右２箇所に設けられた第１の延長カバー取付部７ｃ３と、左右２箇所に設けられた第２の延長カバー取付部７ｃ４と、第１の延長カバー取付部７ｃ３と第２の延長カバー取付部７ｃ４との間を連結するスライド部７ｄ１を有している。第２の延長カバー取付部７ｃ４は、第１の延長カバー取付部７ｃ３の位置に対して、垂直方向の異なる位置に設けられている。 As shown in FIG. 5 (e), the cover 7C has a first extension cover mounting portion 7c3 provided at two locations on the left and right, a second extension cover mounting portion 7c4 provided at two locations on the left and right, and a first. It has a slide portion 7d1 that connects between the extension cover mounting portion 7c3 and the second extension cover mounting portion 7c4. The second extension cover mounting portion 7c4 is provided at a different position in the vertical direction with respect to the position of the first extension cover mounting portion 7c3.

延長カバー１５Ｂは、図５（ｆ）に示すように、突起部からなるカバー取付部１５ｂ１と非突起部１５ｄと切欠部１５ｃを設ける。スライド部７ｄ１は、延長カバー１５Ｂのカバー取付部１５ｂ１を、スライド部７ｄ１の第１の延長カバー取付部７ｃ３の位置と第２の延長カバー取付部７ｃ４の位置の間で移動させることができる。 As shown in FIG. 5 (f), the extension cover 15B is provided with a cover mounting portion 15b1 composed of protrusions, a non-protrusion portion 15d, and a notch portion 15c. The slide portion 7d1 can move the cover mounting portion 15b1 of the extension cover 15B between the position of the first extension cover mounting portion 7c3 of the slide portion 7d1 and the position of the second extension cover mounting portion 7c4.

このように構成された第３の実施形態に係る電力量計によれば、図４（ａ）に示すように、カバー取付部１５ｂ１の突起部を、第２の延長カバー取付部７ｃ４の溝部に嵌合させることで、延長カバー１５Bをカバー７Ｃに取り付けることができる。この場合、延長カバー１５Bをカバー７Ｃ内に収納した状態になる。 According to the watt-hour meter according to the third embodiment configured in this way, as shown in FIG. 4A, the protrusion of the cover mounting portion 15b1 is formed in the groove portion of the second extension cover mounting portion 7c4. By fitting, the extension cover 15B can be attached to the cover 7C. In this case, the extension cover 15B is housed in the cover 7C.

次に、延長カバー１５Ｂにより拡張したい場合には、まず、図４（ｂ）に示すように、延長カバー１５Ｂのカバー取付部１５b１が、カバー７Ｃの第２の延長カバー取付部７c４からスライド部７ｄ１に移動させる。次に、図４（ｃ）に示すように、延長カバー１５Ｂのカバー取付部１５b１が、スライド部７ｄ１の第２の延長カバー取付部７ｃ４の位置から、第１の延長カバー取付部７ｃ３の位置まで移動させる。次に、図４（ｄ）に示すように、延長カバー１５Ｂのカバー取付部１５ｂ１がカバー７Ｃの第１の延長カバー取付部７ｃ３に移動して取り付けられる。 Next, when it is desired to expand with the extension cover 15B, first, as shown in FIG. 4B, the cover mounting portion 15b1 of the extension cover 15B is moved from the second extension cover mounting portion 7c4 of the cover 7C to the slide portion 7d1. Move to. Next, as shown in FIG. 4C, the cover mounting portion 15b1 of the extension cover 15B moves from the position of the second extension cover mounting portion 7c4 of the slide portion 7d1 to the position of the first extension cover mounting portion 7c3. Move it. Next, as shown in FIG. 4D, the cover mounting portion 15b1 of the extension cover 15B is moved to and mounted on the first extension cover mounting portion 7c3 of the cover 7C.

即ち、延長カバー１５Ｂをカバー７Ｃから取り外すことなく、延長カバー１５Ｂの取付位置を変更できるため、延長カバー１５Ｂを紛失することがなくなり、電力量計取付作業の作業性を向上することができる。 That is, since the mounting position of the extension cover 15B can be changed without removing the extension cover 15B from the cover 7C, the extension cover 15B is not lost and the workability of the watt hour meter mounting work can be improved.

（第４の実施形態）
図６（ａ）は、カバー７Ｄの第２の延長カバー取付部７ｃ６に、延長カバー１５Ｃのカバー取付部１５ｂ２を取り付けた状態を示す図である。図６（ｂ）は、延長カバー１５Ｃのカバー取付部１５ｂ２が、カバー７Ｄの第２の延長カバー取付部７ｃ６からスライド部７ｄ２に移動した状態を示す図である。図６（ｃ）は、延長カバー１５Ｃのカバー取付部１５ｂ２が、スライド部７ｄ２の第２の延長カバー取付部７ｃ６の位置から、第１の延長カバー取付部７ｃ５の位置まで移動した状態を示す図である。図６（ｄ）は、延長カバー１５Ｃのカバー取付部１５ｂ２が、カバー７Ｄのスライド部７ｄ２から第１の延長カバー取付部７ｃ５に移動して取り付けられる状態を示す図である。 (Fourth Embodiment)
FIG. 6A is a diagram showing a state in which the cover mounting portion 15b2 of the extension cover 15C is attached to the second extension cover mounting portion 7c6 of the cover 7D. FIG. 6B is a diagram showing a state in which the cover mounting portion 15b2 of the extension cover 15C has moved from the second extension cover mounting portion 7c6 of the cover 7D to the slide portion 7d2. FIG. 6C is a diagram showing a state in which the cover mounting portion 15b2 of the extension cover 15C has moved from the position of the second extension cover mounting portion 7c6 of the slide portion 7d2 to the position of the first extension cover mounting portion 7c5. Is. FIG. 6D is a diagram showing a state in which the cover mounting portion 15b2 of the extension cover 15C is moved from the slide portion 7d2 of the cover 7D to the first extension cover mounting portion 7c5 and mounted.

図７（ｅ）は、カバー７Ｄの詳細な構成を示す図である。図７（ｆ）は、延長カバー１５Ｃの詳細な構成を示す図である。 FIG. 7E is a diagram showing a detailed configuration of the cover 7D. FIG. 7 (f) is a diagram showing a detailed configuration of the extension cover 15C.

カバー７Ｄには、図７（ｅ）に示すように、カバー連結部７ｅが、カバー７Ｄの側面７ｆと平行に隙間７ｇを設けるようにしてカバー内側の左右２箇所に設けられている。また、カバー連結部７ｅには、第１の延長カバー取付部７ｃ５と、第２の延長カバー取付部７ｃ６と、第１の延長カバー取付部７ｃ５と第２の延長カバー取付部７ｃ６との間を連結するスライド部７ｄ２を有している。第２の延長カバー取付部７ｃ６は、第１の延長カバー取付部７ｃ５の位置に対して、垂直方向の異なる位置に設けられている。
延長カバー１５Ｃは、図７（ｆ）に示すように、内側に突起したカバー取付部１５ｂ２と非突起部１５ｅと切欠部１５ｃを設ける。スライド部７ｄ２は、延長カバー１５Ｃのカバー取付部１５ｂ２を、スライド部７ｄ２の第１の延長カバー取付部７ｃ５の位置と第２の延長カバー取付部７ｃ６の位置の間で移動させることができる。 As shown in FIG. 7E, the cover 7D is provided with cover connecting portions 7e at two positions on the left and right inside the cover so as to provide a gap 7g in parallel with the side surface 7f of the cover 7D. Further, in the cover connecting portion 7e, between the first extension cover mounting portion 7c5, the second extension cover mounting portion 7c6, the first extension cover mounting portion 7c5, and the second extension cover mounting portion 7c6. It has a slide portion 7d2 to be connected. The second extension cover mounting portion 7c6 is provided at a different position in the vertical direction with respect to the position of the first extension cover mounting portion 7c5.
As shown in FIG. 7 (f), the extension cover 15C is provided with a cover mounting portion 15b2 protruding inward, a non-protruding portion 15e, and a notch portion 15c. The slide portion 7d2 can move the cover mounting portion 15b2 of the extension cover 15C between the position of the first extension cover mounting portion 7c5 of the slide portion 7d2 and the position of the second extension cover mounting portion 7c6.

このように構成された第４の実施形態に係る電力量計によれば、図６（ｃ）に示すように、カバー連結部７ｅとカバー側面７ｆの間に設けられた隙間７ｇに、延長カバー１５Ｃの側面１５ｆが挿入され、延長カバー１５Ｃのカバー取付部１５ｂ２が、カバー連結部７ｅに設けられた第２の延長カバー取付部７ｃ６に取付けることができる。この場合、延長カバー１５Ｃをカバー７Ｄ内に収納した状態になる。 According to the watt-hour meter according to the fourth embodiment configured in this way, as shown in FIG. 6C, an extension cover is provided in the gap 7g provided between the cover connecting portion 7e and the cover side surface 7f. The side surface 15f of the 15C is inserted, and the cover mounting portion 15b2 of the extension cover 15C can be mounted on the second extension cover mounting portion 7c6 provided on the cover connecting portion 7e. In this case, the extension cover 15C is housed in the cover 7D.

次に、延長カバー１５Ｃにより拡張したい場合には、まず、図６（ｂ）に示すように、延長カバー１５Ｃのカバー取付部１５b２が、カバー７Ｄの第２の延長カバー取付部７c６からスライド部７ｄ２に移動させる。次に、図６（ｃ）に示すように、延長カバー１５Ｃのカバー取付部１５b２が、スライド部７ｄ２の第２の延長カバー取付部７ｃ６の位置から、第１の延長カバー取付部７ｃ５の位置まで移動させる。次に、図６（ｄ）に示すように、延長カバー１５Ｃのカバー取付部１５ｂ２がカバー７Ｄの第１の延長カバー取付部７ｃ５に移動して取り付けられる。 Next, when it is desired to expand with the extension cover 15C, first, as shown in FIG. 6B, the cover mounting portion 15b2 of the extension cover 15C is moved from the second extension cover mounting portion 7c6 of the cover 7D to the slide portion 7d2. Move to. Next, as shown in FIG. 6C, the cover mounting portion 15b2 of the extension cover 15C moves from the position of the second extension cover mounting portion 7c6 of the slide portion 7d2 to the position of the first extension cover mounting portion 7c5. Move it. Next, as shown in FIG. 6D, the cover mounting portion 15b2 of the extension cover 15C is moved to and mounted on the first extension cover mounting portion 7c5 of the cover 7D.

即ち、延長カバー１５Ｃをカバー７Ｄから取り外すことなく、延長カバー１５Ｃの取付位置を変更できる。また、延長カバー１５Ｃのカバー取付部１５ｂ２を含めた延長カバー１５Ｃの側面１５ｆが、カバー連結部７ｅとカバー側面７ｆの間に設けられた隙間７ｇに収まるため、延長カバー１５Ｃをカバー７Ｄから取り外し難くしており、延長カバー１５Ｃを紛失することがなくなり、電力量計取付作業の作業性を向上することができる。 That is, the mounting position of the extension cover 15C can be changed without removing the extension cover 15C from the cover 7D. Further, since the side surface 15f of the extension cover 15C including the cover mounting portion 15b2 of the extension cover 15C fits in the gap 7g provided between the cover connecting portion 7e and the cover side surface 7f, it is difficult to remove the extension cover 15C from the cover 7D. Therefore, the extension cover 15C is not lost, and the workability of the watt hour meter installation work can be improved.

（第５の実施形態）
図８（ａ）は、延長カバー１５Ｄをカバー７Ｅ内に納めた状態の電力量計を示す図である。図８（ｂ）は、延長カバー１５Ｄを回転させて拡張した状態の電力量計を示す図である。図８（ｃ）は、延長カバー１５Ｄをカバー内に納めた状態のカバー７Ｅを示す図である。図８（ｄ）は、延長カバー１５Ｄを回転させて拡張した状態のカバー７Ｅを示す図である。 (Fifth Embodiment)
FIG. 8A is a diagram showing a watt hour meter in a state where the extension cover 15D is housed in the cover 7E. FIG. 8B is a diagram showing a watt hour meter in a state where the extension cover 15D is rotated and expanded. FIG. 8C is a diagram showing a cover 7E in a state where the extension cover 15D is housed in the cover. FIG. 8D is a diagram showing a cover 7E in a state in which the extension cover 15D is rotated and expanded.

図９（ｅ）は、カバー７Ｅの詳細な構成を示す図である。図９（ｆ）は、延長カバー１５Ｄの詳細な構成を示す図である。 FIG. 9E is a diagram showing a detailed configuration of the cover 7E. FIG. 9 (f) is a diagram showing a detailed configuration of the extension cover 15D.

延長カバー１５Ｄは、図９（ｆ）に示すように、延長カバー１５Ｄを回転できる回転用凸部１７と、延長カバー１５Ｄの位置を固定できる固定用凸部１６を、左右側面に有している。 As shown in FIG. 9F, the extension cover 15D has a rotating convex portion 17 capable of rotating the extension cover 15D and a fixing convex portion 16 capable of fixing the position of the extension cover 15D on the left and right side surfaces. ..

カバー７Ｅは、図５（ｅ）に示すように、延長カバー１５Ｄに有する回転用凸部１７に嵌合する回転用凹部１９と、延長カバー１５Ｄに有する固定用凸部１６に嵌合する固定用凹部１８を、左右側面に有している。 As shown in FIG. 5E, the cover 7E has a rotating concave portion 19 that fits into the rotating convex portion 17 of the extension cover 15D and a fixing concave portion 19 that fits into the fixing convex portion 16 of the extension cover 15D. The recesses 18 are provided on the left and right side surfaces.

このように構成された第５の実施形態に係る電力量計によれば、図８（ｃ）に示す状態では、カバー７Ｅの回転用凹部１９に、延長カバー１５Ｄの回転用凸部１７を嵌合させ、カバー７Ｅの固定用凹部１８に、延長カバー１５Ｄの固定用凸部１６を嵌合している状態にある。この状態は、図８（ａ）に示すように、カバー７Ｅに延長カバー１５Ｄが収納された状態になる。 According to the watt-hour meter according to the fifth embodiment configured in this way, in the state shown in FIG. 8C, the rotating convex portion 17 of the extension cover 15D is fitted into the rotating concave portion 19 of the cover 7E. In this state, the fixing convex portion 16 of the extension cover 15D is fitted into the fixing concave portion 18 of the cover 7E. In this state, as shown in FIG. 8A, the extension cover 15D is housed in the cover 7E.

次に、図８（ｃ）に示す状態から、延長カバー１５Ｄの回転用凸部１７を回転軸として延長カバー１５Ｄを回転動作させ、図８（ｄ）に示すように、延長カバー１５Ｄの固定用凸部１６がカバー７Ｅの固定用凹部１８から離れて、カバー７Ｅの側面端部に引っ掛かって固定される。この状態は、図８（ｂ）に示すように、延長カバー１５Ｄをカバー７Ｅより拡張して取り付けた状態になる。 Next, from the state shown in FIG. 8 (c), the extension cover 15D is rotated around the rotating convex portion 17 of the extension cover 15D as a rotation axis, and as shown in FIG. 8 (d), the extension cover 15D is fixed. The convex portion 16 is separated from the fixing concave portion 18 of the cover 7E and is hooked and fixed to the side surface end portion of the cover 7E. In this state, as shown in FIG. 8B, the extension cover 15D is extended from the cover 7E and attached.

即ち、延長カバー１５Ｄを回転動作させてカバー７Ｅの長さを切り替えることができるため、電力量計取付作業の作業性を向上することができる。 That is, since the extension cover 15D can be rotated to switch the length of the cover 7E, the workability of the watt hour meter mounting work can be improved.

１，９回路部
１ａ表示部
２電流線取付ねじ
３導体部
４センサ部
５ケース
６ベース
６ａコネクタ通し穴
６ｂ通信装置取付部
６ｃ電流線通し穴
７，７Ａ，７Ｂ，７Ｃ，７Ｄ，７Ｅカバー
７ａカバー本体
７ｂ切欠部
７ｃ延長カバー取付部
７ｃ１，７ｃ３，７ｃ５第１の延長カバー取付部
７ｃ２，７ｃ４，７ｃ６第２の延長カバー取付部
７ｄ１，７ｄ２スライド部
８カバー取付ねじ
９ａＬＥＤ
９ｂケーブル接続用コネクタ
１０ケーブル
１０ａ計量装置接続用コネクタ
１０ｂ回路部接続用コネクタ
１１ＬＥＤ導光部
１２ａＬＥＤ導光用穴
１３ａ計量装置取付部
１５，１５Ｂ，１５Ｃ，１５Ｄ延長カバー
１５ａカバー本体
１５ｂ，１５ｂ１，１５ｂ２カバー取付部
１５ｃ切欠部
１５ｄ，１５ｅ非突起部
１６固定用凸部
１７回転用凸部
１８固定用凹部
１９回転用凹部
1,9 Circuit part 1a Display part 2 Current line mounting screw 3 Conductor part 4 Sensor part 5 Case 6 Base 6a Connector through hole 6b Communication device mounting part 6c Current line through hole 7,7A, 7B, 7C, 7D, 7E Cover 7a Cover body 7b Notch 7c Extension cover mounting part 7c1, 7c3, 7c5 First extension cover mounting part 7c2, 7c4, 7c6 Second extension cover mounting part 7d1,7d2 Slide part 8 Cover mounting screw 9a LED
9b Cable connection connector 10 Cable 10a Weighing device connection connector 10b Circuit section connection connector 11 LED light guide 12a LED light guide hole 13a Weighing device mounting section
15, 15B, 15C, 15D Extension cover 15a Cover body 15b, 15b 1, 15b2 Cover mounting part 15c Notch 15d, 15e Non-protruding part 16 Fixing convex part 17 Rotating convex part 18 Fixing concave part 19 Rotating concave part

Claims

A measuring device that measures the amount of electric power and
A communication device attached to the weighing device and transmitting the amount of electric power measured by the measuring device to the outside,
A cover that covers the weighing device and the communication device,
Has an extension cover that can be attached to the cover
The cover has an extension cover mounting portion for mounting the extension cover.
The extension cover is a watt hour meter characterized by having a cover mounting portion for mounting on the extension cover mounting portion.

The cover is provided with a plurality of extension cover mounting portions.
The watt hour meter according to claim 1, wherein the cover mounting portion provided on the extension cover can be mounted on any of a plurality of extension cover mounting portions provided on the cover so that the mounting position can be changed. ..

The cover is provided with a slide portion for connecting the plurality of extension cover mounting portions, and the slide portion slides the cover mounting portion of the extension cover to extend the cover mounting portion to any one of the plurality. The watt hour meter according to claim 2, wherein the mounting position can be changed by mounting the watt-hour meter on the cover mounting portion.

The cover connecting portion having the plurality of extension cover mounting portions and the slide portion is provided inside the cover so as to provide a gap parallel to the side surface of the cover, and is extended in the gap provided between the cover connecting portion and the side surface of the cover. The power meter according to claim 3, wherein the side surface of the cover is inserted, and the cover mounting portion of the extension cover can be mounted on the extension cover mounting portion provided in the cover connecting portion.

The cover mounting portion of the extension cover has a rotating convex portion capable of rotating the extension cover and a fixing convex portion capable of fixing the position of the extension cover, and the extension cover mounting portion of the cover has the rotating convex portion. The watt hour meter according to claim 1, further comprising a rotating recess that fits into the convex portion for fixing and a concave portion for fixing that fits into the convex portion for fixing.