JPH0321130Y2 - - Google Patents

Info

Publication number
JPH0321130Y2
JPH0321130Y2 JP1986119895U JP11989586U JPH0321130Y2 JP H0321130 Y2 JPH0321130 Y2 JP H0321130Y2 JP 1986119895 U JP1986119895 U JP 1986119895U JP 11989586 U JP11989586 U JP 11989586U JP H0321130 Y2 JPH0321130 Y2 JP H0321130Y2
Authority
JP
Japan
Prior art keywords
unit
shielding plate
drive shaft
pulled out
busbar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP1986119895U
Other languages
Japanese (ja)
Other versions
JPS6329314U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1986119895U priority Critical patent/JPH0321130Y2/ja
Publication of JPS6329314U publication Critical patent/JPS6329314U/ja
Application granted granted Critical
Publication of JPH0321130Y2 publication Critical patent/JPH0321130Y2/ja
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00Switchgear having carriage withdrawable for isolation
    • H02B11/24Shutters or guards

Landscapes

  • Trip Switchboards (AREA)

Description

【考案の詳細な説明】[Detailed explanation of the idea] 【産業上の利用分野】[Industrial application field]

本考案はシヤツタ装置付閉鎖配電盤に関する。
更に具体的には、引出し可能に設けてあるユニツ
トを引出した際に母線カバーの接合穴を遮蔽する
シヤツタ装置を備えたコントロールセンタ等の閉
鎖配電盤に関するものである。
The present invention relates to a closed switchboard with a shutter device.
More specifically, the present invention relates to a closed power distribution board such as a control center, which is equipped with a shutter device that shields a joint hole in a busbar cover when a unit provided in a drawable manner is pulled out.

【従来技術とその課題点】[Prior art and its issues]

一般にコントロールセンタ等においては箱状の
盤フレーム内を棚板により上下に複数段に仕切つ
て、複数個のユニツト室を構成し、これら各ユニ
ツト室内にユニツトをそれぞれ引出し可能な状態
で収納している。 このユニツトは配線用遮断器、電磁接触器、過
負荷継電器、及び制御リレー等の各種制御器具を
共通のフレームに取りつけて所定の制御機能を得
ることができるようにしたものである。 ユニツトの電源主回路、負荷主回路、及び場合
によつて制御回路がユニツトの盤フレームに対す
る引出し又は挿入時盤フレームの対応する母線や
負荷側端子等の回路と自動的に断路或いは接続す
るように構成されている。 このようなユニツトにおいては、ユニツトを引
出した状態でユニツト室を点検する場合、誤つて
人体の一部が母線に接触しないように考慮する必
要がある。即ち、露出している母線を遮蔽するシ
ヤツタ装置が安全上必要不可欠である。 この種のシヤツタ装置を備えた配電盤が実開昭
57−74611号公報に記載されている。 この配電盤を第7図、第8図、第9図に示す。
図において109はコントロールセンタのユニツ
ト室を示しており、ユニツト室109は棚板11
0によつて仕切られている。そしてユニツト扉1
11とで外部と隔離されている。前記ユニツト1
01はこの棚板110に設けられたガイド板11
2に沿つて挿入され、母線カバー113で囲われ
ている母線114へユニツト側接触子116が母
線カバー113に設けられている角穴115を貫
通して接合される。 シヤツタ機構120は遮蔽板121と、この遮
蔽板121を棚板110に摺動可能に取りつける
支持ボルト122及びこの支持ボルト122と遮
蔽板121との間に隙間をもたせるためのカラー
(図示省略)等により構成された支持具とからな
る。 上記遮蔽板121は取付け時に母線カバー11
3に設けたユニツト側接触子116との接合用の
角穴115を塞ぐ遮蔽部121a,121b,1
21cを形成すると共に、これと直角を成す引出
し面、すなわち棚板110の表面と平行な部分1
21Aには左右方向へのガイド用として長いスリ
ツト121d,121eを設け、更に遮蔽板全体
を移動させるための駆動用スリツト121fを設
けている。そしてこの遮蔽板121は支持ボルト
122及びカラー等による支持具をガイド用スリ
ツト121d,121eに挿通させることにより
前記棚板110に対し左右方向に摺動可能な取付
構成となる。つまり遮蔽板121のスリツト12
1d,121eにスリツト121d,121e幅
よりやや小さいカラーを挿入し、支持ボルト12
2でカラーを棚板110に締付固定している。そ
して遮蔽板121の動作前はユニツト101の下
に設けられている駆動ピン124は駆動用スリツ
ト121fの引出し方向と平行な第1の直交部1
21f−1に位置しており、角穴115は遮蔽板
121で遮蔽されている。 ユニツト101が母線側に進むと駆動ピン12
4は斜行部121f−2内を進むことにより遮蔽
板121は右方向に作用力を受けて母線カバー1
13の角穴115が開口して、接触子116と母
線114は接触する。 なお、点検時にユニツト101を引出した場合
は上記動作と反対の動作によつて動作前の状態に
復帰するものである。 このシヤツター装置はバネによつて動作する場
合のようにバネが切損したり経年変化で特性が変
化したりしないため長年の品質維持が可能という
効果を有する。 しかしながら、遮蔽板121が左右に移動する
ことで母線カバー113の角穴115を開口する
構造のため、母線114の配置と収納スペースと
の関係から母線114の各相間のピツチが大きく
とれない場合は次の問題点を有する。 即ち、コントロールセンタ及びユニツト側接触
子116の外形寸法は大体定まつており、母線カ
バー113の角穴115の大きさも定まつている
ので、コントロールセンタに収容される母線11
4の数が多い等の理由により、各相間のビツチが
大きくとれないときは母線カバー113、角穴1
15の間隔が狭くなり、角穴115自体の横幅よ
り狭くなる場合が生じる。 上記ユニツト側接触子116を挿入する角穴1
15の大きさが定まつているので、角穴115を
遮蔽する遮蔽部121a,121b,121cの
大きさも定まる。母線114のピツチ即ち母線カ
バー113のピツチが角穴115の幅より狭くな
る場合は、遮蔽板121を開放したとき遮蔽部1
21a,121b,121cのそれぞれの両側縁
が角穴115まではみ出し、ユニツト側接触子1
16の角穴115への挿入を確保できなくなる。 ユニツト側接触子116の角穴115への挿入
を確保するためには遮蔽部121a,121b,
121cの幅を狭くするしかない。そうすると幅
狭の遮蔽部121a,121b,121cでは角
穴115を遮蔽できなくなり、母線114が露出
し、感電事故を防止する目的が達成できなくな
る。 第10図はシヤツター装置の動作時の位置関係
の説明図で、第7図、第8図、第9図と同一また
は相当部分は同一符号で示す。 第10図aは母線114、母線カバー113及
び角穴115の関係を示し、pは母線114の相
間ピツチ、aは角穴115の横幅を示す。bは角
穴115の間隔で、b=p−aである。 第10図bは遮蔽板121、その遮蔽部121
a,121b,121c及び遮蔽部間の切欠部1
21g,121hの関係を示し、pは切欠部の相
間ピツチで母線114の相間ピツチと等しく、a
は切欠部の切欠幅で角穴115の幅と等しく、b
は遮蔽部の幅で角穴115間の間隔と等しく設定
するものとする。 第10図cは第10図aに第10図bの遮蔽板
121を組合せたもので、この場合、遮蔽した状
態を示す。この図から分るように遮蔽ができる条
件としてはb>aであり、b=a+b>2aでな
ければならない。各スペースの関係からpが小さ
くなり、p>2aの条件が満足できない場合には
遮蔽ができず、第7図、第8図、第9図の遮蔽装
置は実施できないことになる。 この課題点を解決したシヤツタ装置が実開昭52
−143641号公報及び特開昭52−85342号公報に開
示してある。ここで開示してあるシヤツタ装置の
構造は次の通りである。配電盤側には、枢着点を
中心として上下に回動する作動レバーが取り付け
てあり、その所要箇所に連結レバーの下端部をピ
ンで取り付け、連結レバーの上端部にはシヤツタ
を取り付けている。一方、収容機器の側面下部に
は、駆動ピンを突設している。 そうして、収容機器の搬入時には、前記駆動ピ
ンが作動レバーの下面と当接し、摺動しながら作
動レバーを押上げ、これによりシヤツタを移動さ
せて挿入穴を開き、ユニツト側接触子と盤側導体
とを接合できるようにする。収容機器の引出時に
は駆動ピンと作動レバーはおおむね逆の作用を行
う。その際、作動レバーは自重で降下し、先端が
配電盤の床面に当たつて停止する。その位置でシ
ヤツタは挿入穴を閉塞する。 このシヤツタ装置によれば、前記課題点は一応
解決できる。 しかしながら、上記シヤツタ装置には、いずれ
も次のような課題点を有することが判明した。 (1) 収容機器の引出時には作動レバーは自重で降
下してシヤツタは挿入穴を閉塞するようになつ
ている。このため、 配電盤の床面と作動レバーの間に何らかの
異物が存する場合、 経年使用によつて作動レバーを含む可動部
分が錆びついた場合、 等には作動レバーは降下できず、従つてシヤツ
タは挿入穴を閉塞できない。 (2) 作動レバーが自重で降下し、先端が配電盤の
床面に当たつて停止している位置、つまり作動
レバーが水平よりも下方に下がつた位置でシヤ
ツタは挿入穴を閉塞している。そして収容機器
を収納する場合は、収容機器の搬入につれて、
収容機器の側面下部に設けた駆動ピンが作動レ
バーの案内部下面に当接し、作動レバーは水平
よりも下方に下がつた位置から徐々に上方に回
動し始め、駆動ピンの高さの位置で作動レバー
は水平となる。このような動きにより連結レバ
ーを昇降して、シヤツタを駆動する。従つて作
動レバーは一定以上のストロークで時計回り或
は反時計回りに動かないとシヤツタの十分な作
動は期待できない。作動レバーは最終的には駆
動ピンの高さの位置で水平になるため、作動レ
バーの回動角、つまり前記ストロークは作動レ
バーの枢着位置によつて定まり、枢着位置が高
い程ストロークは大きくなる。従つて一定のス
トロークを確保するためには、収容室の高さを
余り低くすることができず、配電盤のコンパク
ト化という要請に対応できない。
Generally, in control centers, etc., a box-shaped panel frame is partitioned into multiple levels above and below by shelf boards to form multiple unit rooms, and units are stored in each of these unit rooms in a state where they can be pulled out. . This unit is a unit in which various control devices such as a molded circuit breaker, an electromagnetic contactor, an overload relay, and a control relay are attached to a common frame to obtain predetermined control functions. When the unit's main power circuit, load main circuit, and in some cases control circuit are pulled out or inserted into the panel frame, the unit's power supply main circuit, load main circuit, and in some cases the control circuit are automatically disconnected or connected to the circuits such as the corresponding bus bar or load side terminal of the panel frame. It is configured. In such a unit, when inspecting the unit chamber with the unit pulled out, it is necessary to take care to prevent any part of the human body from accidentally coming into contact with the bus bar. That is, a shutter device that shields the exposed busbar is essential for safety. A power distribution board equipped with this type of shutter device was put into production.
It is described in Publication No. 57-74611. This switchboard is shown in FIGS. 7, 8, and 9.
In the figure, reference numeral 109 indicates a unit room of the control center, and the unit room 109 has a shelf board 11.
It is divided by 0. And unit door 1
11 and is isolated from the outside world. Said unit 1
01 is the guide plate 11 provided on this shelf board 110
The unit side contactor 116 is inserted along the busbar 114 along the busbar cover 113 and is joined to the busbar 114 by passing through a square hole 115 provided in the busbar cover 113. The shutter mechanism 120 includes a shielding plate 121, a support bolt 122 for slidably attaching the shielding plate 121 to the shelf board 110, a collar (not shown) for creating a gap between the support bolt 122 and the shielding plate 121, etc. It consists of a support tool constructed by: The above-mentioned shielding plate 121 is attached to the busbar cover 11 when installed.
Shielding parts 121a, 121b, 1 that close the square hole 115 for joining with the unit side contactor 116 provided in 3.
21c and a drawer surface that is perpendicular to this, that is, a portion 1 that is parallel to the surface of the shelf board 110.
21A is provided with long slits 121d and 121e for guiding in the left-right direction, and further provided with a driving slit 121f for moving the entire shielding plate. This shielding plate 121 can be attached to the shelf board 110 so as to be slidable in the left and right directions by inserting supports such as support bolts 122 and collars through guide slits 121d and 121e. In other words, the slit 12 of the shielding plate 121
Insert collars slightly smaller than the width of the slits 121d and 121e into 1d and 121e, and then tighten the support bolts 12.
2, the collar is tightened and fixed to the shelf board 110. Before the shielding plate 121 is operated, the drive pin 124 provided under the unit 101 is at the first orthogonal portion 1 parallel to the drawing direction of the drive slit 121f.
21f-1, and the square hole 115 is shielded by a shielding plate 121. When the unit 101 moves toward the busbar side, the drive pin 12
4 moves through the diagonal section 121f-2, the shielding plate 121 receives a force acting in the right direction, and the bus bar cover 1
13 square holes 115 are opened, and the contact 116 and the bus bar 114 come into contact. In addition, when the unit 101 is pulled out during inspection, it is returned to the state before operation by an operation opposite to the above-mentioned operation. This shutter device has the advantage that quality can be maintained for many years because the spring does not break or its characteristics change over time unlike in the case of a spring-based shutter device. However, since the square hole 115 of the busbar cover 113 is opened by moving the shielding plate 121 from side to side, if the pitch between each phase of the busbar 114 cannot be made large due to the relationship between the arrangement of the busbar 114 and the storage space. It has the following problems. That is, since the external dimensions of the control center and the unit-side contacts 116 are approximately fixed, and the size of the square hole 115 of the busbar cover 113 is also fixed, the busbar 11 accommodated in the control center
If the gap between each phase cannot be made large due to reasons such as a large number of
15 may become narrower than the width of the square hole 115 itself. Square hole 1 into which the unit side contactor 116 is inserted
Since the size of the rectangular hole 115 is determined, the sizes of the shielding portions 121a, 121b, and 121c that shield the square hole 115 are also determined. If the pitch of the bus bar 114, that is, the pitch of the bus bar cover 113, is narrower than the width of the square hole 115, when the shield plate 121 is opened, the shield part 1
The respective side edges of 21a, 121b, and 121c protrude to the square hole 115, and the unit side contact 1
16 into the square hole 115 cannot be ensured. In order to ensure the insertion of the unit side contactor 116 into the square hole 115, the shielding parts 121a, 121b,
The only option is to narrow the width of 121c. In this case, the square hole 115 cannot be shielded by the narrow shielding parts 121a, 121b, and 121c, and the bus bar 114 is exposed, making it impossible to achieve the purpose of preventing electric shock accidents. FIG. 10 is an explanatory diagram of the positional relationship during operation of the shutter device, and the same or equivalent parts as in FIGS. 7, 8, and 9 are designated by the same reference numerals. FIG. 10a shows the relationship between the generatrix 114, the generatrix cover 113, and the square hole 115, p represents the interphase pitch of the generatrix 114, and a represents the width of the square hole 115. b is the interval between square holes 115, and b=pa. FIG. 10b shows the shielding plate 121 and its shielding part 121.
a, 121b, 121c and the notch 1 between the shielding parts
21g and 121h, p is the pitch between the phases of the notch and is equal to the pitch between the phases of the bus bar 114, and a
is the notch width of the notch, which is equal to the width of the square hole 115, and b
is the width of the shielding part and is set equal to the interval between the square holes 115. FIG. 10c shows a combination of the shielding plate 121 of FIG. 10b with FIG. 10a, and in this case shows a shielded state. As can be seen from this figure, the conditions for shielding are b>a and b=a+b>2a. If p becomes small from the relationship of each space and the condition p>2a is not satisfied, shielding cannot be performed and the shielding devices of FIGS. 7, 8, and 9 cannot be implemented. A shutter device that solved this problem was put into production in 1972.
This is disclosed in Japanese Patent Application Laid-open No. 143641 and Japanese Patent Application Laid-open No. 52-85342. The structure of the shutter device disclosed herein is as follows. An operating lever that rotates up and down about a pivot point is attached to the switchboard side, and the lower end of the connecting lever is attached to the required location with a pin, and a shutter is attached to the upper end of the connecting lever. On the other hand, a drive pin is provided protruding from the lower side of the accommodated device. Then, when carrying in the stored equipment, the drive pin comes into contact with the lower surface of the operating lever and pushes up the operating lever while sliding, thereby moving the shutter and opening the insertion hole, connecting the unit side contactor and the board. Enables connection with the side conductor. When withdrawing the contained equipment, the drive pin and the actuating lever have roughly opposite actions. At that time, the actuating lever descends under its own weight and stops when the tip hits the floor of the switchboard. At that position, the shutter closes the insertion hole. According to this shutter device, the above-mentioned problems can be solved to some extent. However, it has been found that all of the above shutter devices have the following problems. (1) When the stored equipment is pulled out, the operating lever is lowered by its own weight and the shutter closes the insertion hole. Therefore, if there is any foreign object between the floor of the switchboard and the operating lever, or if the movable parts including the operating lever have rusted due to long-term use, the operating lever cannot be lowered and the shutter cannot be inserted. The hole cannot be closed. (2) The shutter closes the insertion hole at the position where the actuating lever descends under its own weight and the tip touches the floor of the switchboard and stops, that is, the actuating lever is lower than horizontal. . When storing the stored equipment, as the stored equipment is brought in,
The drive pin provided at the bottom of the side of the storage device comes into contact with the lower surface of the guide of the actuation lever, and the actuation lever gradually begins to rotate upward from a position lower than horizontal until it reaches the position at the height of the drive pin. The operating lever becomes horizontal. Such movement moves the connecting lever up and down to drive the shutter. Therefore, sufficient operation of the shutter cannot be expected unless the operating lever moves clockwise or counterclockwise with a stroke greater than a certain level. Since the actuation lever ultimately becomes horizontal at the height of the drive pin, the rotation angle of the actuation lever, that is, the stroke, is determined by the pivot position of the actuation lever, and the higher the pivot position, the greater the stroke. growing. Therefore, in order to ensure a constant stroke, the height of the storage chamber cannot be made very low, and the demand for making the switchboard more compact cannot be met.

【考案の目的】[Purpose of invention]

本考案はシヤツタ装置の開閉を確実に行えると
共に、配電盤のコンパクト化という要請にも対応
できるシヤツタ装置付閉鎖配電盤を提供すること
を目的とするものである。
The object of the present invention is to provide a closed power distribution board with a shutter device that can reliably open and close the shutter device and also meet the demand for a more compact power distribution board.

【考案の構成】[Structure of the idea]

上記目的を達成するために講じた考案の構成は
次の通りである。即ち本考案は、 ユニツトを引出可能に収容し、その引出方向に
沿う移動によりユニツト側接触子と盤側導体との
間を接離させるようにしたものにおいて、 前記盤側導体とユニツト側接触子との間には母
線カバーが設けてあり、該母線カバーにはユニツ
ト側接触子が出入りする接合穴が設けてあり、該
接合穴を前記母線カバーに沿つて移動して覆う閉
塞位置及びこれから外れる開放位置に位置する遮
蔽板と; 該遮蔽板と平行方向に設けてあり、作動部が前
記遮蔽板と脱係しないように係合されて遮蔽板を
上下方向に移動する回動アームと; 該回動アームの基部を一端側に取り付けて回動
アームを回動するようにしてあり、前記ユニツト
の引出し方向に沿つて配設され、且つユニツトの
引出し方向に沿う案内溝が形成されている駆動軸
と; 該駆動軸に形成してある案内溝と係合し、前記
ユニツトに設けてある駆動突起と; を備え、ユニツトの押し込み力或は引つ張り力を
前記駆動突起及び案内溝を介して駆動軸に伝達す
るようにし、前記遮蔽板を前記接合穴を覆う閉塞
位置及びこれから外れる開放位置の双方に強制移
動するようにしたことを特徴とするシヤツタ装置
付閉鎖配電盤である。
The structure of the invention devised to achieve the above purpose is as follows. That is, the present invention is a device in which a unit is housed in a manner that it can be pulled out, and the unit-side contactor and the panel-side conductor are brought into contact with and separated from each other by movement along the pull-out direction, wherein the panel-side conductor and the unit-side contactor A busbar cover is provided between the busbar cover, and the busbar cover is provided with a joint hole through which the unit side contact enters and exits, and the joint hole is moved along the busbar cover to a closed position and removed from the closed position. a shielding plate located in an open position; a rotating arm provided in parallel with the shielding plate, the actuating portion of which is engaged with the shielding plate so as not to disengage it, and moves the shielding plate in the vertical direction; The drive is configured to rotate the rotating arm by attaching the base of the rotating arm to one end side, is arranged along the direction in which the unit is pulled out, and is formed with a guide groove along the direction in which the unit is pulled out. a shaft; and a drive protrusion provided on the unit that engages with a guide groove formed on the drive shaft, and transmits the pushing force or pulling force of the unit through the drive protrusion and the guide groove. This is a closed power distribution board with a shutter device, characterized in that the shielding plate is forcibly moved to both a closed position covering the joint hole and an open position where the shielding plate is removed from the closed position.

【実施例】【Example】

本考案を図面に示した実施例に基づき更に詳細
に説明する。第1図はユニツトの一部を省略した
概略平面図、第5図はユニツトの省略した概略正
面図、第3図はユニツトの一部を省略した概略右
側面図である。なお、第1図、第2図において想
像線はユニツト側接触子と盤側導体とが接触して
いる状態を示している。 符号1はユニツトで、閉鎖配電盤内に引出可能
に収容されており、その引出方向に沿う移動によ
りユニツト側接触子と盤側導体との間を接離させ
るように構成されている。 ユニツト1には接触子取付台1aを介して接触
子10,10a,10b,10cが取付けてあ
り、更に図示を省略した配線用遮断器、電磁接触
器、過負荷継電器等各種器具が収容されている。
配電盤には盤側導体としての垂直母線2,2a,
2b,2cが設けてあり、垂直母線2,2a,2
b,2cは母線カバー3,3a,3b,3cで囲
繞されて感電、短絡事故等の危険防止が図られて
いる。 母線カバー3,3a,3b,3cのうちユニツ
ト1の接触子10,10a,10b,10cとの
接合部には、接合穴である角穴4,4a,4b,
4cが開口してあり、ユニツト1の接触子10,
10a,10b,10cは角穴4,4a,4b,
4cを貫通して垂直母線2,2a,2b,2cと
接触する。 母線カバー3,3a,3b,3cの角穴4,4
a,4b,4c側には角穴4,4a,4b,4c
を覆う遮蔽板5が配設してある。遮蔽板5の両端
には折曲げ等による案内部6が形成され、両側の
母線カバー3,3cの端部に形成された係合部に
係合し、母線に沿う方向即ち上下方向に摺動可能
にして取付けてある。 遮蔽板5のユニツト1側にはピン7が突設して
あり、ピン7は回動アーム8の先端に形成されて
いる摺動溝9に摺動可能に、且つ脱係しないよう
に係合されている。回動アーム8は基部を中心と
して回動し、先端に形成されている摺動溝9はピ
ン7を摺動させながら押し上げて遮蔽板5を昇降
させるように構成してある。 回動アーム8の基部には駆動軸11が略直角に
取りつけてあり、駆動軸11は軸心がユニツト1
の引出し方向になるように設けてある。 駆動軸11は基台50に設けられている軸受3
0,30aに支承されており、駆動軸11には案
内溝12が形成されている。案内溝12は連続す
る部分、即ち軸心方向と平行な案内部13と、軸
心方向と所要の角度で交差する斜行部14と、軸
心方向と平行で案内部13とは円周方向の位置を
異にする位置保持部15からなつている。そして
案内部13端には先広の受入口16を形成して、
ユニツト1をユニツト室に挿入する場合に、駆動
突起である駆動ピン20と案内溝12とが係合し
やすいようにしている。前記基台50は一般的に
は棚板が兼用される。 符号17は駆動軸11に設けられている回転角
度調整突起で、基台50に設けてある高さの調整
できるストツパ18で駆動軸11の回動の範囲を
設定し、遮蔽板5が確実に角穴4,4a,4b,
4cを遮蔽できる位置にくるようにしている。 ユニツト1は下面に駆動ピン20を有してお
り、駆動ピン20は案内溝12と係合し、ユニツ
ト1の引出し、挿入動作と共に案内溝12内を摺
動する。駆動ピン20の取付け位置は接触子1
0,10a,10b,10cが遮蔽板5から抜け
出たときに案内溝12の斜行部14に来る位置で
ある。 駆動ピン20は、回転軸12に対して偏心して
設けてあり、駆動ピン20が案内溝12と係合し
た状態でユニツト1とユニツト1が摺動するガイ
ド(図示せず)との間の遊びの間隙の分、左右に
動いても駆動ピン20に荷重がかからないよう逃
げを設け、駆動ピン20が曲がつたり折れたりし
ないようにしている。 なお、回転軸21よりユニツト1の引出し側に
おいて180度を越えない範囲で回動できるように
してユニツト1を挿入する際に受入口の作用と相
俟つて案内溝12に円滑に導入されるようにして
ある。 第4図は上記における駆動軸11及びその周辺
部を示す斜視図、第5図a,b,cは駆動ピンの
斜視図で、第5図aからb,cと順次回転軸の回
りを回転した状態を示し、第5図bの状態を中心
に矢印Aに示す180度以内の角度回転可能にして
いる。 第6図a,b,cは駆動ピン20の上面視した
説明図で、駆動ピン20が回転軸に対して偏心し
て回転する状態を示し、a,b,cは第5図a,
b,cにそれぞれ対応する。 このように、駆動ピンを回動軸に対して偏心し
て設けることによつて、駆動ピンは左右方向に遊
動するため、ユニツトの挿入時に左右の遊びがあ
つても駆動ピンに荷重がかからず、曲がつたり折
れたりするのを防止することができ、円滑で確実
な動作をすることができる。
The present invention will be explained in more detail based on embodiments shown in the drawings. FIG. 1 is a schematic plan view of the unit with some parts omitted, FIG. 5 is a schematic front view of the unit with some parts omitted, and FIG. 3 is a schematic right side view of the unit with some parts omitted. In addition, in FIGS. 1 and 2, imaginary lines indicate a state in which the unit side contactor and the board side conductor are in contact with each other. Reference numeral 1 denotes a unit, which is housed in a closed switchboard so that it can be pulled out, and is configured to move the unit-side contactor and the board-side conductor toward and away from each other by moving along the pullout direction. Contactors 10, 10a, 10b, and 10c are attached to the unit 1 via a contactor mounting base 1a, and various devices such as a molded circuit breaker, an electromagnetic contactor, and an overload relay (not shown) are housed therein. There is.
The switchboard has vertical busbars 2, 2a, and 2a as board-side conductors.
2b, 2c are provided, and the vertical generatrix 2, 2a, 2
b and 2c are surrounded by busbar covers 3, 3a, 3b, and 3c to prevent dangers such as electric shock and short circuit accidents. Among the busbar covers 3, 3a, 3b, 3c, square holes 4, 4a, 4b, which are joint holes, are provided at the joints with the contacts 10, 10a, 10b, 10c of the unit 1.
4c is open, and the contacts 10 of the unit 1,
10a, 10b, 10c are square holes 4, 4a, 4b,
4c and comes into contact with the vertical busbars 2, 2a, 2b, and 2c. Square holes 4, 4 in busbar covers 3, 3a, 3b, 3c
Square holes 4, 4a, 4b, 4c on the a, 4b, 4c sides
A shielding plate 5 is provided to cover. Guide portions 6 formed by bending or the like are formed at both ends of the shielding plate 5, and engage with engaging portions formed at the ends of the generatrix covers 3, 3c on both sides, and slide in the direction along the generatrix, that is, in the vertical direction. It is possible and installed. A pin 7 is provided protruding from the unit 1 side of the shielding plate 5, and the pin 7 engages in a sliding groove 9 formed at the tip of the rotating arm 8 so as to be slidable and not disengaged. has been done. The rotating arm 8 rotates about its base, and a sliding groove 9 formed at its tip is configured to push up the pin 7 while sliding it, thereby raising and lowering the shielding plate 5. A drive shaft 11 is attached to the base of the rotating arm 8 at a substantially right angle, and the axis of the drive shaft 11 is aligned with the unit 1.
The drawer is placed in the direction of the drawer. The drive shaft 11 is a bearing 3 provided on the base 50.
0 and 30a, and a guide groove 12 is formed in the drive shaft 11. The guide groove 12 has continuous parts, that is, a guide part 13 parallel to the axial direction, an oblique part 14 that intersects the axial direction at a predetermined angle, and a guide part 13 parallel to the axial direction in the circumferential direction. It consists of position holding parts 15 having different positions. Then, a wide-fronted receiving opening 16 is formed at the end of the guide part 13,
When the unit 1 is inserted into the unit chamber, the drive pin 20, which is a drive protrusion, and the guide groove 12 are made to easily engage with each other. The base 50 generally doubles as a shelf board. Reference numeral 17 denotes a rotation angle adjustment protrusion provided on the drive shaft 11, and a height-adjustable stopper 18 provided on the base 50 sets the range of rotation of the drive shaft 11, ensuring that the shielding plate 5 is Square hole 4, 4a, 4b,
I'm trying to put it in a position where I can block 4c. The unit 1 has a drive pin 20 on its lower surface, and the drive pin 20 engages with the guide groove 12 and slides within the guide groove 12 as the unit 1 is pulled out and inserted. The mounting position of the drive pin 20 is contact 1
0, 10a, 10b, and 10c are located at the diagonal portion 14 of the guide groove 12 when they come out of the shielding plate 5. The drive pin 20 is provided eccentrically with respect to the rotating shaft 12, and when the drive pin 20 is engaged with the guide groove 12, there is no play between the unit 1 and a guide (not shown) on which the unit 1 slides. A relief is provided for the gap so that no load is applied to the drive pin 20 even if it moves from side to side, and the drive pin 20 is prevented from bending or breaking. In addition, it is possible to rotate the unit 1 within a range not exceeding 180 degrees from the rotating shaft 21 on the drawer side of the unit 1, so that when the unit 1 is inserted, it can be smoothly introduced into the guide groove 12 with the action of the receiving opening. It is set as. Fig. 4 is a perspective view showing the drive shaft 11 and its surrounding parts in the above, and Fig. 5 a, b, and c are perspective views of the drive pin, which rotates around the rotating shaft in sequence from Fig. 5 a to b and c. It is possible to rotate within 180 degrees as shown by arrow A around the state shown in FIG. 5b. FIGS. 6a, b, and c are explanatory diagrams of the drive pin 20 viewed from above, showing the state in which the drive pin 20 rotates eccentrically with respect to the rotation axis;
They correspond to b and c, respectively. In this way, by providing the drive pin eccentrically with respect to the rotation axis, the drive pin can freely move in the left and right direction, so even if there is left and right play when inserting the unit, no load is applied to the drive pin. It can prevent bending or breaking, and can operate smoothly and reliably.

【作用】[Effect]

次に本実施例の作用を説明する。 第1図の想像線で示した接触子10,10
a,10b,10cと垂直母線2,2a,2
b,2cと接触状態にあるユニツト1をコント
ロールセンタから引出す動作の場合、ユニツト
1の下面の駆動ピン20は案内溝12内の位置
保持部15を摺動しながら斜行部14に向か
う。この状態では遮蔽板5は、上昇したまま角
穴4,4a,4b,4cの開位置にある。 更にユニツト1を引出して駆動ピン20が斜
行部14に到達した後はユニツト1の移動と共
に駆動軸11は第2図において時計回り方向に
回動し、駆動軸11に取付けられた回動アーム
8も同じ方向に回動して遮蔽板5を角穴4,4
a,4b,4cを遮蔽する位置に降下させる。 逆にユニツト1をユニツト室に挿入する動作
の場合は、駆動ピン20は接触子10,10
a,10b,10cが遮蔽板5の直前に来るま
で斜行部14へ向けて案内部13を摺動し、斜
行部14へ到達した後はユニツト1の移動と共
に上記引出し方向の動作を、大体に於て逆の順
序で行い、駆動軸11の回動により遮蔽板5を
押上げ、角穴4,4a,4b,4cを露出さ
せ、接触子10,10a,10b,10cが角
穴4,4a,4b,4c内にそれぞれ導入さ
れ、接触子と垂直母線とを接触状態にする。 なお、本考案は図示の実施例に限定されるもの
ではなく、例えば遮蔽板5に摺動溝9を、また回
動アーム8にピン7を設けることもできる等実用
新案登録請求の範囲の記載内において数々の変形
が可能である。
Next, the operation of this embodiment will be explained. Contacts 10, 10 shown by imaginary lines in Fig. 1
a, 10b, 10c and vertical generatrix 2, 2a, 2
In the case of pulling out the unit 1 which is in contact with the units 1 and 2c from the control center, the drive pin 20 on the lower surface of the unit 1 moves toward the oblique part 14 while sliding on the position holding part 15 in the guide groove 12. In this state, the shielding plate 5 remains elevated and is in the open position of the square holes 4, 4a, 4b, 4c. After the unit 1 is further pulled out and the drive pin 20 reaches the diagonal portion 14, the drive shaft 11 rotates clockwise in FIG. 2 as the unit 1 moves, and the rotation arm attached to the drive shaft 11 8 also rotates in the same direction to insert the shielding plate 5 into the square holes 4, 4.
Lower a, 4b, and 4c to the position where they will be shielded. Conversely, in the case of inserting the unit 1 into the unit chamber, the drive pin 20
A, 10b, 10c slide the guide part 13 toward the diagonal part 14 until they are just in front of the shielding plate 5, and after reaching the diagonal part 14, move the unit 1 and perform the above-mentioned movement in the pull-out direction. This is done in roughly the reverse order, pushing up the shielding plate 5 by rotating the drive shaft 11, exposing the square holes 4, 4a, 4b, 4c, and connecting the contacts 10, 10a, 10b, 10c to the square holes 4. , 4a, 4b, and 4c, respectively, to bring the contacts and the vertical generatrix into contact. Note that the present invention is not limited to the illustrated embodiment; for example, the shielding plate 5 may be provided with a sliding groove 9, the rotating arm 8 may be provided with a pin 7, etc. as described in the claims for utility model registration. Numerous variations are possible within.

【考案の効果】[Effect of the idea]

本考案は上記構成を有し、次の効果を奏する。 (1) 盤側導体とユニツト側接触子との間には母線
カバーが設けてあり、該母線カバーにはユニツ
ト側接触子が出入りする接合穴が設けてあり、
該接合穴を前記母線カバーに沿つて移動して覆
う閉塞位置及びこれから外れる開放位置に位置
する遮蔽板を有し、前記のように遮蔽板はユニ
ツトの引出方向の移動により前記接合部を覆う
閉塞位置及びこれから外れる開放位置の双方に
位置させるべく母線に沿つた上下方向に移動す
るので、母線のピツチ即ち母線カバーのピツチ
が母線カバーの角穴の幅より小さい場合でも、
母線カバーの角穴の閉塞及び開放状態が確保さ
れる。 (2) 遮蔽板はバネや自重で上下方向に移動するの
ではなく、ユニツトの引出方向及び挿入方向の
移動により生じる駆動力は、駆動軸−回動アー
ム−遮蔽板に伝達され、遮蔽板は前記駆動力に
より強制的に移動されるので、接合穴の開閉及
び閉塞が確実である。 また、案内溝には駆動突起が嵌つた状態で係
合しているため、遮蔽板が移動しないときには
ユニツトも移動しなくなり、作動部の異常が確
実にわかる。 (3) 駆動軸にはユニツトの引出し方向に沿う案内
溝が形成されており、該案内溝と係合する駆動
突起がユニツトに設けてあり、ユニツトの押し
込み力或は引つ張り力を前記駆動突起及び案内
溝を介して駆動軸に伝達して遮蔽板を所定のス
トロークで移動させるようにしている。 つまり、従来のシヤツタ装置のように、ユニツ
ト側に設けられている駆動ピンの位置や、配電盤
側に設けてあるシヤツタレバーの枢着位置によつ
て遮蔽板の昇降ストロークが設定されるのではな
く、駆動軸に形成される案内溝の形状による駆動
軸の回動角によつて遮蔽板の昇降ストロークを自
由に設定できるため、配電盤のコンパクト化とい
う要請にも対応できる。
The present invention has the above configuration and has the following effects. (1) A busbar cover is provided between the panel side conductor and the unit side contactor, and the busbar cover has a joint hole through which the unit side contactor enters and exits.
The shielding plate is located at a closed position that moves along the busbar cover to cover the joint hole, and at an open position where it is removed from the cover, and as described above, the shielding plate is moved in the drawing direction of the unit to close the joint part. Since it moves in the vertical direction along the generatrix to locate both the position and the open position, even if the pitch of the generatrix, that is, the pitch of the generatrix cover is smaller than the width of the square hole in the generatrix cover,
The closed and open states of the square holes in the busbar cover are ensured. (2) The shielding plate does not move vertically due to a spring or its own weight, but the driving force generated by the movement of the unit in the pull-out direction and insertion direction is transmitted to the drive shaft, rotating arm, and shielding plate, and the shielding plate Since it is forcibly moved by the driving force, the opening, closing and closing of the joining hole is reliable. Further, since the driving protrusion is fitted and engaged with the guide groove, when the shielding plate does not move, the unit also does not move, and an abnormality in the operating part can be detected with certainty. (3) A guide groove is formed on the drive shaft along the direction in which the unit is pulled out, and a drive protrusion that engages with the guide groove is provided on the unit to transfer the pushing force or pulling force of the unit to the drive shaft. The force is transmitted to the drive shaft via the protrusion and the guide groove to move the shielding plate at a predetermined stroke. In other words, unlike conventional shutter devices, the lifting stroke of the shielding plate is not set by the position of the drive pin provided on the unit side or the pivot position of the shutter lever provided on the power distribution board side. Since the lifting stroke of the shield plate can be freely set by changing the rotation angle of the drive shaft due to the shape of the guide groove formed on the drive shaft, it is possible to meet the demand for making the switchboard more compact.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はユニツトの一部を省略した概略平面
図、第2図はユニツトの省略した概略正面図、第
3図はユニツトの一部を省略した概略右側面図、
第4図は駆動軸及びその周辺部を示す斜視図、第
5図は駆動ピンの斜視図、第6図は駆動ピンの上
面視した説明図、第7図は従来の配電盤の構造を
示す斜視図、第8図、第9図は従来の配電盤の駆
動部の動作を示す説明図、第10図はシヤツタ装
置の動作時の位置関係の説明図である。 1:ユニツト、10,10a,10b,10
c:接触子、5:遮蔽板、8:回動アーム、1
1:駆動軸、20:駆動ピン。
Fig. 1 is a schematic plan view of the unit with some parts omitted, Fig. 2 is a schematic front view of the unit with some parts omitted, and Fig. 3 is a schematic right side view of the unit with some parts omitted.
Fig. 4 is a perspective view showing the drive shaft and its surroundings, Fig. 5 is a perspective view of the drive pin, Fig. 6 is an explanatory diagram of the drive pin viewed from above, and Fig. 7 is a perspective view showing the structure of a conventional switchboard. 8 and 9 are explanatory diagrams showing the operation of the drive section of a conventional switchboard, and FIG. 10 is an explanatory diagram of the positional relationship during operation of the shutter device. 1: Unit, 10, 10a, 10b, 10
c: Contactor, 5: Shielding plate, 8: Rotating arm, 1
1: Drive shaft, 20: Drive pin.

Claims (1)

【実用新案登録請求の範囲】 ユニツトを引出可能に収容し、その引出方向に
沿う移動によりユニツト側接触子と盤側導体との
間を接離させるようにしたものにおいて、 前記盤側導体とユニツト側接触子との間には母
線カバーが設けてあり、該母線カバーにはユニツ
ト側接触子が出入りする接合穴が設けてあり、該
接合穴を前記母線カバーに沿つて移動して覆う閉
塞位置及びこれから外れる開放位置に位置する遮
蔽板と; 該遮蔽板と平行方向に設けてあり、作動部が前
記遮蔽板と脱係しないように係合されて遮蔽板を
上下方向に移動する回動アームと; 該回動アームの基部を一端側に取り付けて回動
アームを回動するようにしてあり、前記ユニツト
の引出し方向に沿つて配設され、且つユニツトの
引出し方向に沿う案内溝が形成されている駆動軸
と; 該駆動軸に形成してある案内溝と係合し、前記
ユニツトに設けてある駆動突起と; を備え、ユニツトの押し込み力或は引つ張り力を
前記駆動突起及び案内溝を介して駆動軸に伝達す
るようにし、前記遮蔽板を前記接合穴を覆う閉塞
位置及びこれから外れる開放位置の双方に強制移
動するようにしたことを特徴とするシヤツタ装置
付閉鎖配電盤。
[Scope of Claim for Utility Model Registration] A device in which a unit is housed in a manner that it can be pulled out, and a unit-side contactor and a panel-side conductor are brought into contact with and separated from each other by movement along the direction of the pull-out, wherein said panel-side conductor and the unit A busbar cover is provided between the side contacts, and the busbar cover is provided with a joint hole through which the unit side contactor enters and exits, and the joint hole is moved along the busbar cover to cover the closed position. and a shielding plate positioned in an open position to be removed from the shielding plate; a rotating arm provided in a direction parallel to the shielding plate, the operating portion of which is engaged with the shielding plate so that it does not disengage, and moves the shielding plate in the vertical direction. and; a base portion of the rotating arm is attached to one end side so that the rotating arm can be rotated, and a guide groove is formed along the direction in which the unit is pulled out, and is arranged along the direction in which the unit is pulled out. a drive shaft that engages with a guide groove formed on the drive shaft and is provided on the unit; A closed power distribution board with a shutter device, characterized in that the power is transmitted to the drive shaft via a groove, and the shielding plate is forcibly moved to both a closed position covering the joint hole and an open position where it is removed from the closed position.
JP1986119895U 1986-08-04 1986-08-04 Expired JPH0321130Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986119895U JPH0321130Y2 (en) 1986-08-04 1986-08-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986119895U JPH0321130Y2 (en) 1986-08-04 1986-08-04

Publications (2)

Publication Number Publication Date
JPS6329314U JPS6329314U (en) 1988-02-26
JPH0321130Y2 true JPH0321130Y2 (en) 1991-05-08

Family

ID=31007699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986119895U Expired JPH0321130Y2 (en) 1986-08-04 1986-08-04

Country Status (1)

Country Link
JP (1) JPH0321130Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285342A (en) * 1976-01-07 1977-07-15 Hitachi Ltd Shutter device for enclosed switchboard

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52143641U (en) * 1976-04-26 1977-10-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285342A (en) * 1976-01-07 1977-07-15 Hitachi Ltd Shutter device for enclosed switchboard

Also Published As

Publication number Publication date
JPS6329314U (en) 1988-02-26

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