JP7511418B2

JP7511418B2 - Distribution Board

Info

Publication number: JP7511418B2
Application number: JP2020147004A
Authority: JP
Inventors: 諒也大島
Original assignee: Kawamura Electric Inc
Current assignee: Kawamura Electric Inc
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2024-07-05
Anticipated expiration: 2040-09-01
Also published as: JP2022041662A

Description

本発明は、主幹ブレーカや分岐ブレーカが内蔵される分電盤に関するものである。 The present invention relates to a distribution board that incorporates a main breaker and a branch breaker.

従来の分電盤は、各種ブレーカが設置される基台と、基台の前方を覆うように組み付けられる蓋体とを備えている。そして、基台の周面（たとえば上面）には、開口部が設けられることもある（特許文献１）。 A conventional distribution board has a base on which various breakers are installed and a cover that is attached to cover the front of the base. An opening may also be provided on the periphery (for example, the top surface) of the base (Patent Document 1).

特開２０００－２７８８２０号公報JP 2000-278820 A

分電盤における一般的な問題として、各種ブレーカへの配線に係る作業スペースを確保しづらいという問題がある。このような問題に対し、特許文献１に記載の分電盤では、基台の上面に矩形窓状の開口部を設けているにすぎない。そのため、開口部を開口させたところで開口部の周縁に残る枠部（特に開口の前側に残る枠部）が邪魔となり、十分な作業スペースを確保することはできない。 A common problem with distribution boards is that it is difficult to secure the working space required for wiring to the various breakers. In response to this problem, the distribution board described in Patent Document 1 merely has a rectangular window-shaped opening on the top surface of the base. Therefore, even if the opening is opened, the frame remaining around the periphery of the opening (especially the frame remaining in front of the opening) gets in the way, making it impossible to secure sufficient working space.

そこで、本発明は、上記問題に鑑みなされたものであって、内蔵される各種ブレーカへの配線等に係る作業スペースを十分に確保することができる分電盤を提供しようとするものである。 The present invention has been made in consideration of the above problems, and aims to provide a distribution board that can ensure sufficient working space for wiring to the various built-in breakers.

上記目的を達成するために、本発明は、前方に開口する箱状に形成された基台を有する分電盤であって、前記基台の周面に、前縁から後方へ切り込まれた切り欠き部が設けられているとともに、前記周面に、前記周面と平行となって前記切り欠き部を閉塞するカバー体が設置されており、さらに、前記カバー体が、自身の後端を軸として、前記切り欠き部を閉塞する閉塞姿勢と、前記周面に対して外側へ傾斜して前記切り欠き部を開放する開放姿勢との間で回動可能に設置されている一方、前記周面における前記切り欠き部の近傍に、前記カバー体を前記閉塞姿勢でロックするロック姿勢と、前記カバー体の前記開放姿勢への姿勢変更を許容する解除姿勢との間で姿勢変更可能なロック部材が設置されているとともに、前記周面における前記ロック部材の近傍に、前記ロック部材の不用意な姿勢変更を規制する規制突起が設けられていることを特徴とする。 In order to achieve the above object, the present invention provides a distribution board having a base formed in a box shape that opens forward, wherein a cutout portion cut from a front edge to a rear is provided on a peripheral surface of the base, and a cover body is provided on the peripheral surface parallel to the peripheral surface and closing the cutout portion, and further, the cover body is provided so as to be rotatable about its rear end as an axis between a closing position in which the cutout portion is closed and an opening position in which the cover body is inclined outwardly with respect to the peripheral surface to open the cutout portion, while a locking member is provided near the cutout on the peripheral surface that can change its position between a locking position in which the cover body is locked in the closing position and a release position that allows the cover body to change its position to the open position, and a restricting protrusion is provided near the locking member on the peripheral surface to restrict inadvertent positional changes of the locking member .

本発明によれば、基台の周面に、前縁から後方へ切り込まれた切り欠き部を設けているため、たとえば分岐ブレーカへの配線時にカバー体を開放姿勢としたり、取り外したりして切り欠き部を開放した際、開口の前側に枠部が残る等していた従来と比べると広い開口を形成することができ、ひいては広い作業スペースを確保することができる。さらに、カバー体が、自身の後端を軸として、切り欠き部を閉塞する閉塞姿勢と、周面に対して外側へ傾斜して切り欠き部を開放する開放姿勢との間で回動可能に設置されているため、必要に応じて切り欠き部を容易に開閉することができ、分電盤の設置に係る作業性の更なる向上を図ることができる。
また、周面における切り欠き部の近傍に、カバー体を閉塞姿勢でロック可能なロック部材が設置されているため、切り欠き部が不用意に開放されてしまう事態を確実に防止することができる。
さらに、周面におけるロック部材の近傍に規制突起が設けられているため、たとえば解除姿勢にあるロック部材の不用意なロック姿勢側への姿勢変更を規制することができる。 According to the present invention, the peripheral surface of the base is provided with a notch cut rearward from the front edge, so that when the cover body is opened or removed to open the notch when wiring to a branch breaker, a wider opening can be formed than in the past, in which a frame part remains in front of the opening, and thus a larger working space can be secured. Furthermore, the cover body is installed so as to be rotatable about its rear end as an axis between a closed position in which the notch is closed and an open position in which the cover body is inclined outward relative to the peripheral surface to open the notch, so that the notch can be easily opened and closed as necessary, and the workability of installing the distribution board can be further improved.
Furthermore , since the locking member capable of locking the cover body in the closed position is provided near the cutout portion on the peripheral surface, it is possible to reliably prevent the cutout portion from being inadvertently opened.
Furthermore, since the restricting protrusion is provided on the circumferential surface in the vicinity of the locking member, it is possible to restrict, for example, the locking member from being in the released position from inadvertently changing its position to the locked position.

分電盤の基台を示した斜視説明図である。FIG. 2 is a perspective explanatory view showing a base of the distribution board. カバー体が閉塞姿勢にある基台のカバー体の設置箇所を拡大して示した斜視説明図である。13 is an explanatory perspective view showing an enlarged view of an installation location of the cover body of the base when the cover body is in a closed position. FIG. カバー体が開放姿勢にある基台のカバー体の設置箇所を拡大して示した斜視説明図である。13 is an explanatory perspective view showing an enlarged view of a location where the cover body is installed on the base when the cover body is in an open position. FIG. カバー体が取り外された状態にある基台のカバー体の設置箇所を拡大して示した斜視説明図である。13 is an explanatory perspective view showing an enlarged view of a location where the cover body of the base is installed with the cover body removed; FIG. カバー体を下方から示した斜視説明図である。FIG. 4 is a perspective explanatory view showing the cover body from below.

以下、本発明の一実施形態となる分電盤について、図面にもとづき詳細に説明する。
図１は、分電盤１の基台３を示した斜視説明図である。図２は、カバー体１０が閉塞姿勢にある基台３のカバー体１０の設置箇所を拡大して示した斜視説明図である。図３は、カバー体１０が開放姿勢にある基台３のカバー体１０の設置箇所を拡大して示した斜視説明図である。図４は、カバー体１０が取り外された状態にある基台３のカバー体１０の設置箇所を拡大して示した斜視説明図である。図５は、カバー体１０を下方から示した斜視説明図である。 Hereinafter, a distribution board according to one embodiment of the present invention will be described in detail with reference to the drawings.
Fig. 1 is an explanatory perspective view showing the base 3 of the distribution board 1. Fig. 2 is an explanatory perspective view showing an enlarged view of the installation location of the cover body 10 on the base 3 when the cover body 10 is in the closed position. Fig. 3 is an explanatory perspective view showing an enlarged view of the installation location of the cover body 10 on the base 3 when the cover body 10 is in the open position. Fig. 4 is an explanatory perspective view showing an enlarged view of the installation location of the cover body 10 on the base 3 when the cover body 10 is removed. Fig. 5 is an explanatory perspective view showing the cover body 10 from below.

分電盤１は、基台３と、基台３の前方を覆うように組み付けられる蓋体（図示せず）とからなる本体ケースを有するものであって、当該本体ケース内には、商用電力系統からの引き込み線が接続される主幹ブレーカ４や、電灯や電気機器等の負荷に電力を供給する分岐電路を設けるための複数の分岐ブレーカ５、５・・等が収容される。 The distribution board 1 has a main case consisting of a base 3 and a cover (not shown) that is attached to cover the front of the base 3. The main case contains a main breaker 4 to which a service line from a commercial power system is connected, and multiple branch breakers 5, 5, etc. for providing branch circuits that supply power to loads such as electric lights and electrical equipment.

ここで、本発明の要部となる基台３について説明する。
基台３は、上面３ａ、背面、左右両側面、及び下面を有して、前方に開口する略方形箱状に形成された合成樹脂製部材である。そして、該基台３の上面３ａで、分岐ブレーカ５、５・・の設置部の上側となる箇所には、所定の左右幅にわたり前縁から後方へ切り込まれてなる切り欠き部２０が設けられているとともに、切り欠き部２０を開閉可能なカバー体１０と、切り欠き部２０を閉塞する閉塞姿勢でカバー体１０をロック可能なロック部材１１とが設置されている。カバー体１０は、切り欠き部２０と略同じ大きさとされた板体であって、カバー体１０の左右両側縁の後端には、左右方向へ突出する軸部１４、１４が設けられている。そして、カバー体１０は、基台３の上面３ａに対して左右方向を軸として回動可能に設置されており、当該回動によって、基台３の上面３ａと平行となって切り欠き部２０を閉塞する閉塞姿勢と、基台３の上面３ａに対して外側（上側）へ傾斜して切り欠き部２０を開放する開放姿勢との間で姿勢変更可能となっている。なお、カバー体１０が閉塞姿勢にあると、基台３の上面３ａとカバー体１０の表面（上面）とは略面一となる。また、カバー体１０が閉塞姿勢にあると、基台３の上面３ａの前縁と、カバー体１０の前縁とについても略一直線となっている。 Here, the base 3, which is a main part of the present invention, will be described.
The base 3 is a synthetic resin member having a top surface 3a, a back surface, both left and right side surfaces, and a bottom surface, and formed into a generally rectangular box shape that opens forward. A cutout portion 20 is provided on the top surface 3a of the base 3 above the installation portion of the branch breakers 5, 5, and is cut rearward from the front edge over a predetermined left and right width. A cover body 10 capable of opening and closing the cutout portion 20 and a locking member 11 capable of locking the cover body 10 in a closed position that closes the cutout portion 20 are also provided. The cover body 10 is a plate body having approximately the same size as the cutout portion 20, and shaft portions 14, 14 protruding in the left and right directions are provided at the rear ends of both left and right side edges of the cover body 10. The cover body 10 is installed so as to be rotatable about an axis in the left-right direction with respect to the upper surface 3a of the base 3, and the rotation allows the cover body 10 to change its position between a closed position in which the cover body 10 is parallel to the upper surface 3a of the base 3 and closes the cutout portion 20, and an open position in which the cover body 10 is inclined outward (upward) with respect to the upper surface 3a of the base 3 and opens the cutout portion 20. When the cover body 10 is in the closed position, the upper surface 3a of the base 3 and the surface (top surface) of the cover body 10 are approximately flush with each other. When the cover body 10 is in the closed position, the front edge of the upper surface 3a of the base 3 and the front edge of the cover body 10 are also approximately flush with each other.

一方、ロック部材１１は、上下方向に延びる操作部と、操作部から水平方向へ突出するロック部とを備えてなる。そして、ロック部材１１は、基台３の上面３ａにおける切り欠き部２０の近傍に設置されており、上下方向を軸として回動することで、ロック部が切り欠き部２０上へ（カバー体１０が閉塞姿勢にあるとカバー体１０上へ）突出して、カバー体１０を閉塞姿勢のままロック可能なロック姿勢と、ロック部が切り欠き部２０上から退避して、カバー体１０の開放姿勢への姿勢変更を許容する解除姿勢との間で姿勢変更可能となっている。なお、１２は、基台３の上面３ａにおけるロック部材１１の近傍に設けられ、解除姿勢にあるロック部材１１が不用意にロック姿勢へ姿勢変更することを防止する規制突起である。また、１３は、切り欠き部２０の開口縁に設けられ、カバー体１０の軸部１４を軸支するための軸孔である。 On the other hand, the locking member 11 is provided with an operating portion extending in the vertical direction and a locking portion protruding in the horizontal direction from the operating portion. The locking member 11 is installed near the cutout portion 20 on the upper surface 3a of the base 3, and by rotating about an axis in the vertical direction, the locking portion protrudes above the cutout portion 20 (above the cover body 10 when the cover body 10 is in the closed position), and the position can be changed between a locked position in which the cover body 10 can be locked in the closed position, and a released position in which the locking portion retreats from above the cutout portion 20 and allows the cover body 10 to be changed to an open position. 12 is a restricting protrusion provided near the locking member 11 on the upper surface 3a of the base 3, which prevents the locking member 11 in the released position from accidentally changing its position to the locked position. 13 is an axial hole provided on the opening edge of the cutout portion 20 for supporting the shaft portion 14 of the cover body 10.

以上のような構成を有する分電盤１によれば、基台３の上面３ａで、特に分岐ブレーカ５、５・・の設置部分の上側となる箇所に、前縁から後方へ切り込まれた切り欠き部２０を設けている。したがって、たとえば分岐ブレーカ５、５・・への配線時にカバー体１０を開放姿勢としたり、取り外したりして切り欠き部２０を開放した際、開口の前側に枠部が残る等していた従来よりも広い開口を形成することができ、ひいては広い作業スペースを確保することができる。 According to the distribution board 1 having the above-mentioned configuration, a notch 20 is provided on the upper surface 3a of the base 3, particularly in a location above the installation portion of the branch breakers 5, 5..., cutting from the front edge to the rear. Therefore, for example, when wiring to the branch breakers 5, 5..., the cover body 10 is opened or removed to open the notch 20, a wider opening can be formed than in the past, where a frame portion remains in front of the opening, and thus a larger working space can be secured.

また、カバー体１０が、自身の後端を軸として、切り欠き部２０を閉塞する閉塞姿勢と、基台３の上面３ａに対して外側へ傾斜して切り欠き部２０を開放する開放姿勢との間で回動可能に設置されているため、必要に応じて切り欠き部２０を容易に開閉することができ、分電盤１の設置に係る作業性の更なる向上を図ることができる。
さらに、基台３の上面３ａにおける切り欠き部２０の近傍にロック部材１１が設置されている。そして、カバー体１０が閉塞姿勢にある際、ロック部材１１をロック姿勢とすることにより、カバー体１０を閉塞姿勢のままロック可能としている。したがって、切り欠き部２０が不用意に開放されてしまう事態を確実に防止することができる。 In addition, since the cover body 10 is rotatably installed around its rear end as an axis between a closed position in which the cutout portion 20 is closed and an open position in which the cutout portion 20 is opened by tilting outward relative to the upper surface 3a of the base 3, the cutout portion 20 can be easily opened and closed as required, thereby further improving the ease of installation of the distribution board 1.
Furthermore, a locking member 11 is provided near the cutout portion 20 on the upper surface 3a of the base 3. When the cover body 10 is in the closed position, the locking member 11 can be set to the locked position to lock the cover body 10 in the closed position. This can reliably prevent the cutout portion 20 from being inadvertently opened.

なお、本発明に係る分電盤は、上記実施形態の態様に何ら限定されるものではなく、分電盤の全体的な構成は勿論、切り欠き部や切り欠き部の開閉に係る構造等についても、本発明の趣旨を逸脱しない範囲で、必要に応じて適宜変更することができる。 The distribution board according to the present invention is not limited to the above-mentioned embodiment, and the overall configuration of the distribution board, as well as the cutout portion and the structure related to opening and closing the cutout portion, can be modified as necessary without departing from the spirit of the present invention.

たとえば、上記実施形態では、基台の上面に切り欠き部を設けているが、基台の側面や下面等、他の周面に切り欠き部を設けても何ら問題はなく、基台の周面における切り欠き部の位置や数については、基台に設置される各種ブレーカの位置等に応じて適宜設計変更することができる。すなわち、基台の上面に複数の切り欠き部を設けてもよいし、基台の上面と側面とに切り欠き部を夫々設ける等してもよい。
また、たとえばカバー体に係止爪を、基台に被係止孔を夫々設ける等することで、ロック部材を設けないとしてもよく、ロック部材の有無についても適宜設計変更することができる。 For example, in the above embodiment, the notch is provided on the top surface of the base, but there is no problem if the notch is provided on other peripheral surfaces such as the side surface or bottom surface of the base, and the positions and number of the notches on the peripheral surface of the base can be appropriately changed in design depending on the positions of the various breakers to be installed on the base. That is, multiple notches may be provided on the top surface of the base, or notches may be provided on both the top surface and the side surface of the base.
In addition, for example, by providing a locking claw on the cover body and a locking hole on the base, it is possible to eliminate the need for a locking member, and the design can be modified as to whether or not the locking member is provided.

１・・分電盤、３・・基台、３ａ・・上面、１０・・カバー体、１１・・ロック部材、１３・・軸孔、１４・・軸部、２０・・切り欠き部。 1: Distribution board, 3: Base, 3a: Top surface, 10: Cover body, 11: Locking member, 13: Shaft hole, 14: Shaft portion, 20: Notch portion.

Claims

A distribution board having a box-shaped base that opens forward,
A notch is provided on the peripheral surface of the base from the front edge to the rear,
a cover body is provided on the peripheral surface so as to be parallel to the peripheral surface and close the notch portion;
Furthermore, the cover body is installed so as to be rotatable about its rear end as an axis between a closing position in which the cover body closes the notch portion and an opening position in which the cover body is inclined outwardly with respect to the circumferential surface to open the notch portion;
a locking member is provided near the cutout portion on the peripheral surface and is changeable between a locking position for locking the cover body in the closed position and a release position for allowing the cover body to be changed to the open position; and
A distribution board comprising : a restricting protrusion provided near the locking member on the peripheral surface for restricting an inadvertent change in position of the locking member .