JP2004152981A - Transformer for operation - Google Patents

Transformer for operation Download PDF

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Publication number
JP2004152981A
JP2004152981A JP2002315991A JP2002315991A JP2004152981A JP 2004152981 A JP2004152981 A JP 2004152981A JP 2002315991 A JP2002315991 A JP 2002315991A JP 2002315991 A JP2002315991 A JP 2002315991A JP 2004152981 A JP2004152981 A JP 2004152981A
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JP
Japan
Prior art keywords
transformer
case
terminal
external connection
support rail
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.)
Withdrawn
Application number
JP2002315991A
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Japanese (ja)
Inventor
Yasuo Takasaki
靖夫 高崎
Shinya Nishizawa
伸也 西澤
Hiroo Abe
汎雄 阿部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric FA Components and Systems Co Ltd
Original Assignee
Fuji Electric FA Components and Systems Co Ltd
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 by Fuji Electric FA Components and Systems Co Ltd filed Critical Fuji Electric FA Components and Systems Co Ltd
Priority to JP2002315991A priority Critical patent/JP2004152981A/en
Publication of JP2004152981A publication Critical patent/JP2004152981A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a transformer for operation which is improved in assembling structure so as to obtain a high safety and a superior operability which facilitates the connection thereof to outside wirings and the installation to an operation panel or the like. <P>SOLUTION: A main body 1 of the transformer is built in a mold case 3 which is composed of a lower case 4 and a cover 5. The lower case is formed with a screw seating 4a for fixing the main body of the transformer, a terminal board 4c divided by spacing partition walls 4b to attach input and output external connection terminals 6 distributed to the front and rear sides of the case, and a rail groove 4d located on the rear face side which is to be engaged with a support rail on the panel side to lock and fix the rail. The transformer is also equipped with a printed board 7 formed with such a wiring pattern as to correspond to each lead wire to establish the internal connection between input and output lead wires 1c and 1d extracted from a main body 1 of the case and the external connection terminals 6, and connection boards 8 with one end being bonded to the printed board and the other end being laid on top of the external connection terminal 6 to be tightened together with the terminal by a terminal screw 6a. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、制御機器に給電する電源用トランスとして操作盤, 制御盤などに搭載し、100Vまたは200Vの商用配電系統に接続して2次側から24V程度に降圧した電圧を出力する小形容量の操作用トランスの組立構造に関する。
【0002】
【従来の技術】
まず、本発明の実施対象となる操作用トランスとして図5に示すよう構成が知られている(例えば、非特許文献1参照。)。
図5において、1aは鉄心、1bはコイル、1c,1dはコイル1bから引出した入力側,出力側の口出しリード線、1eは取付ベース板であり、これらでトランス本体1を構成している。
そして、前記のトランス本体1を操作盤, 制御盤などに装備するには、前記した取付ベース板1eを盤内の支持台などにねじ2を用いて固定した上で、入力側,出力側の口出しリード線1c,1dを盤内に配線した商用配電系統の入力線(ケーブル),負荷側機器に接続する出力線(ケーブル)を半田付けして接続するようにしている。
【0003】
また、トランス本体と入力,出力線(ケーブル)との接続手段として、トランス本体1の頂部に端子台を組付けておき、この端子台に配した外部接続用の端子金具にトランス本体の入力,出力側のリード線1c,1dを接続するようにした端子台付きの操作用トランスも知られている(例えば、非特許文献2参照。)。また、図5に示したトランス本体1を金属製のケースに収容した上で、ケースの端面に外部接続用の端子金具を設け、ベース板1eを取付け面にねじ止めして取り付けるようにしたものも知られている(例えば、非特許文献3参照。)。
【0004】
【非特許文献1】
日本工業規格 JIS C6436(1995)電子機器用小形電源変圧器,表3 記号3の参考図
【非特許文献2】
オンラインカタログQ3操作用変圧器、〔online〕、2002.06.21 更新、 富士電機、〔平成14年10月11日検索〕、インターネット、<UR L:http//www.fujielectric.co.jp/kiki/edc/catalog/contents/Q03. htm >
【非特許文献3】
日本工業規格 JIS C6436(1995)電子機器用小形電源変圧器,表3 記号1の参考図
【0005】
【発明が解決しようとする課題】
ところで、前記した従来構成の操作用トランスは取扱い,安全性の面で次に記すような問題点がある。
(1) 操作盤などへのトランスの取付けにはねじを使用しているために、盤への装着,保守点検などでトランスを着脱する作業が面倒で手間がかかる。特に、最近では盤内に機器取付け用の支持レール(Uチャンネル形レール)を敷設しておき、この支持レールに配線用しゃ断器などの各種配電機器を一括して搭載するような取付け方式が普及しているが、従来構成の操作用トランスでは支持レールへの取付けに対応できない。
【0006】
(2) また、外部の入力線,出力線とトランス本体の口出しリード線,またはケース(金属ケース)の端面に露出して設けた端子とを接合する配線方法では、配線作業に手間が掛かるほか、充電部が露呈して安全性にも問題がある。
(3) さらに、トランス本体をケースに入れずにそのまま盤内に設置すると、長期使用の間にトランス本体の表面に塵埃などが付着して絶縁が低下し、地絡, 短絡事故を引き起こすおそれもある。
本発明は上記の点に鑑みなされたものであり、その目的は前記課題を解決し、外部配線との接続,盤への取付けが楽に行える優れた操作性と、高い安全性が確保できるように組立構造を改良した操作用トランスを提供することにある。
【0007】
【課題を解決するための手段】
上記目的を達成するために、本発明によれば、トランス本体をモールドケースに組み込んだ構成になり、前記モールドケースの前後両端部に入力および出力線を接続する外部接続端子を配置して該端子とトランス本体のリード線との間を内部接続するとともに、モールドケースの底部裏面側にUチャンネル形支持レールに対応する取付部を備えた構成とし(請求項1)、具体的には次記のような態様で構成することができる。
(1) モールドケースを下部ケースとカバーとの二分割構造となし、下部ケースのケース底面にトランス本体を固定するねじ座を形成し、ケースの前後両端部には相間隔壁で仕切られた端子台部を形成する(請求項2)。
【0008】
(2) トランス本体の口出しリード線と外部接続端子との間を接続する内部接続手段として、各リード線に対応する配線パターンを形成したプリント板、および該プリント板に一端を接合し、他端を外部接続端子に重ね合わせて端子ねじで共締めする接続板を備える(請求項3)。
(3) レールへの取付部として、モールドケースの底部背面に支持レールが嵌入する凹状のレール溝を形成するとともに、該凹溝に向け側方から出没して支持レールに係止する爪付きスライダを設ける(請求項4)。
上記の構成によれば、トランス本体,および内部接続用の部品は全てモールドケースの内部に収納されていて充電部が露呈することがないので感電に対する安全性が高く、かつ長期間の使用でもトランス本体に塵埃などが付着して絶縁を劣化させるおそれもない。また、外部の入力線,出力線と操作用トランスとの配線は、モールドケースに装備した外部接続用端子(ねじ止め端子)を介して行うので半田付け作業が不要で簡単に接続できる。しかも、モールドケースにレールへの取付部として、ケースの底部背面に凹状のレール溝,係合爪付きのスライダを備えたことで、盤側に敷設した支持レールへの装着にもワンタッチ操作で簡単に対応できて取扱い性が大幅に向上する。
【0009】
【発明の実施の形態】
以下、本発明の実施の形態を図1〜図4に示す実施例に基づいて説明する。
すなわち、図示実施例の操作用トランスは、図5に示したトランス本体1を図1で表すようにモールドケース3に収容して組み立てた構成になる。ここで、モールドケース3は下部ケース4にカバー5を組み合わせた二分割構造であり、下部ケース4にはトランス本体1のベース板1eをねじ2で収容位置に固定するためのねじ座4a、ケースの前後両端部に振り分けて入力側,出力側の外部接続用端子6を組付けけるように相間隔壁4bと組み合わせた端子台4c、および底部の背面側には盤側に敷設した支持レールに取り付けるためのレール溝4dが形成されている。なお、カバー5を下部ケース4に被着結合するために、下部ケース4の側壁面には係合爪4eが、該係合爪4eに対向してカバー5の側壁面には係合爪に引っ掛けてクリック止めする係合穴5aが形成されている。
【0010】
また、前記の外部接続用端子6は、端子ねじ6aと、端子ねじ6aを嵌挿したコ字形の端子金具6bと、前記の端子台6cに装着して端子ねじ6aと螺合し合うナット板6cとからなる。
さらに、外部接続用端子6とトランス本体1から引出した1次,2次側の口出しリード線1c,1dとの間をモールドケース3の内方で接続するための手段として、図示実施例ではプリント板7と接続板8を備えている。ここで、プリント板7はその基板に口出しリード線1c,1dを差し込むスルーホール7a、接続板8の上端を差込みスルーホール7b、および双方のスルーホールを導通させる配線パターン(導体パターン)7cが形成されており、トランス本体1の上方に配置した上で前記の口出しリード線1c,1d,および接続板8の上端をスルーホールに差し込んで半田付けする。また、接続板8の下端は下部ケース4の端子台4cに延在して前記ナット板6cに重ね合わせ、端子ねじ6aで共締めするようにしている。
【0011】
図2は前記のモールドケース3にトランス本体1を収容した上で、プリント板7,接続板8を介してトランス本体1の口出しリード線1c,1dと外部接続用端子6との間を内部接続し、さらに下部ケース4にカバー5を被着した操作用トランスの組立状態の外観図である。
一方、下部ケース3の底部背面側には、図3で示すように凹状レール溝4dの開口縁から溝内に突き出す係合爪4f、および先端の爪部4g−1をレール溝4dに向けて手動操作により出没させるスライダ4gを備えている。なお、スライダ4gはスプリング4g−2で爪部4gがレール溝4dに突き出すよう付勢してケースに組み付けている。
【0012】
そして、操作用トランスの組立体(図2参照)を操作盤などに装着するには、前記スライダ4gの爪をレール溝4dから後退させた上で、盤内に敷設した支持レール(Uチャンネル形レール)9にレール溝4dを嵌入する。ここで、スライダ4gから手を放すとスライダが突き出し、図4で示すように支持レール9の側縁に爪4f,4g−1を引っ掛けて定位置に係止固定される。続いて盤内に配線する電源側の入力線,負荷側の出力線をモールドケース3の前後両端部に分けて配置した外部接続端子6の端子金具6bと接続板8との間に差込み、端子ねじ6aを締めつけて接続固定する。これで操作トランスの取付け作業が完了する。
【0013】
なお、保守点検などで操作用トランスを盤から取り外すには、端子ねじ6aを緩めて入力線,出力線との接続を外した上で、スライダ4gを後退操作して支持レール9から取り外す。
【0014】
【発明の効果】
以上述べたように、本発明の構成によれば、トランス本体をモールドケースに組み込んだ構成とし、前記モールドケースの前後両端部に入力および出力線を接続する外部接続端子を配備して該端子とトランス本体のリード線との間を内部接続するとともに、モールドケースの底部裏面側に盤側に敷設したUチャンネル形支持レールに嵌入して係止する取付部を備えたことにより、
トランス本体,および内部接続用の部品は全て絶縁物のモールドケースに収容されていて充電部が外部に露呈することがなく、高い安全性が確保できるとともに、長期間の使用でもトランス本体に塵埃などが付着して絶縁を劣化させるおそれもない。また、外部の入力線,出力線と操作用トランスとの接続は、モールドケースに装備した外部接続用端子を介して行うので半田付け作業が不要で簡単に接続できる。しかも、モールドケースにレールへの取付部を備えたことにより、スライダのワンタッチ操作で盤側に敷設した支持レールへの装着に対応できるなど、従来構成と比べて安全性,取扱い性が優れた操作用トランスを提供できる。
【図面の簡単な説明】
【図1】本発明の実施例による操作用トランスの分解斜視図
【図2】図1の組立状態を表す外観斜視図
【図3】図1におけるモールドケースの背面構造とともに表した操作用トランスを盤側の支持レールに取付ける際の手順の説明図
【図4】操作用トランスを支持レールに固定した状態を表す背面側から見た斜視図
【図5】操作用トランスの従来例の構成斜視図
【符号の説明】
1 トランス本体
3 モールドケース
4 下部ケース
4a ねじ座
4b 相間隔壁
4c 端子台
4d レール溝
4f 係合爪
4g スライダ
5 カバー
6 外部接続端子
7 プリント板
8 接続板
9 支持レール
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is a small-capacity transformer mounted on an operation panel, a control panel, or the like as a power transformer for supplying power to a control device, connected to a 100 V or 200 V commercial power distribution system, and outputting a voltage reduced from the secondary side to about 24 V. The present invention relates to an assembly structure of an operation transformer.
[0002]
[Prior art]
First, a configuration as shown in FIG. 5 is known as an operation transformer to which the present invention is applied (for example, see Non-Patent Document 1).
In FIG. 5, reference numeral 1a denotes an iron core, 1b denotes a coil, 1c and 1d denote input-side and output-side lead wires drawn out from the coil 1b, and 1e denotes a mounting base plate, and these constitute the transformer body 1.
To mount the transformer body 1 on an operation panel, a control panel, or the like, the mounting base plate 1e is fixed to a support base or the like in the panel using screws 2, and then the input side and the output side are mounted. The input lines (cables) of the commercial power distribution system in which the lead wires 1c and 1d are wired in the panel and the output lines (cables) connected to the load-side devices are connected by soldering.
[0003]
As a means for connecting the transformer body to input and output lines (cables), a terminal block is mounted on the top of the transformer body 1 and input and output terminals of the transformer body are connected to terminal fittings for external connection arranged on the terminal block. An operation transformer with a terminal block for connecting the output side lead wires 1c and 1d is also known (for example, see Non-Patent Document 2). Further, after the transformer main body 1 shown in FIG. 5 is housed in a metal case, terminal fittings for external connection are provided on the end surface of the case, and the base plate 1e is screwed to the mounting surface for mounting. Is also known (for example, see Non-Patent Document 3).
[0004]
[Non-patent document 1]
Japanese Industrial Standards JIS C6436 (1995) Compact power transformer for electronic equipment, Table 3 Reference diagram of symbol 3 [Non-patent document 2]
Transformer for online catalog Q3 operation, [online], 2002.06.21 update, Fuji Electric, [searched on October 11, 2002], Internet, <URL: http // www. Fujielectric. co. jp / kiki / edc / catalog / contents / Q03. htm>
[Non-Patent Document 3]
Japanese Industrial Standard JIS C6436 (1995) Compact power transformer for electronic equipment, Table 3 Reference diagram for symbol 1
[Problems to be solved by the invention]
By the way, the above-mentioned conventional operation transformer has the following problems in terms of handling and safety.
(1) Since screws are used to mount the transformer to the operation panel, etc., the work of attaching and detaching the transformer to the panel, maintenance and inspection, etc. is troublesome and troublesome. In particular, recently, a mounting method in which support rails (U-channel type rails) for mounting equipment are laid in the panel and various power distribution equipment such as a circuit breaker for wiring are collectively mounted on this support rail has become widespread. However, the operation transformer having the conventional configuration cannot support mounting on the support rail.
[0006]
(2) In addition, the wiring method of connecting the external input and output wires to the lead wires of the transformer body or the terminals exposed on the end surface of the case (metal case) requires a lot of trouble in wiring work. However, the charging section is exposed, and there is a problem in safety.
(3) Furthermore, if the transformer body is installed in the panel without putting it in a case, dust may adhere to the surface of the transformer body during a long-term use, insulation may be reduced, and a ground fault or a short circuit may occur. is there.
The present invention has been made in view of the above points, and an object of the present invention is to solve the above-mentioned problems, and to ensure excellent operability in which connection to external wiring and mounting to a panel can be easily performed, and high safety. An object of the present invention is to provide an operation transformer having an improved assembly structure.
[0007]
[Means for Solving the Problems]
To achieve the above object, according to the present invention, a transformer body is incorporated in a mold case, and external connection terminals for connecting input and output lines are arranged at both front and rear ends of the mold case. And a lead wire of the transformer body, and a mounting portion corresponding to the U-channel support rail is provided on the bottom rear surface of the mold case (claim 1). It can be configured in such an embodiment.
(1) The molded case has a two-part structure consisting of a lower case and a cover. A screw seat for fixing the transformer body is formed on the bottom of the lower case. A part is formed (claim 2).
[0008]
(2) A printed board on which a wiring pattern corresponding to each lead wire is formed, and one end is joined to the printed board, and the other end is used as internal connection means for connecting between the lead wire of the transformer body and the external connection terminal. And a connection plate which is overlapped with the external connection terminal and fastened together with terminal screws.
(3) As a mounting portion to the rail, a concave rail groove in which the support rail fits is formed on the bottom rear surface of the mold case, and a claw slider which protrudes and retracts from the side toward the concave groove and engages with the support rail. Is provided (claim 4).
According to the above configuration, the transformer main body and the parts for internal connection are all housed inside the mold case and the charged part is not exposed, so that the safety against electric shock is high, and the transformer can be used for a long time. There is no danger that dust and the like will adhere to the main body and deteriorate insulation. Further, wiring between the external input and output lines and the operation transformer is performed via external connection terminals (screw terminals) provided in the mold case, so that soldering work is unnecessary and connection can be made easily. In addition, the mold case is equipped with a concave rail groove and a slider with engaging claws on the back of the bottom of the case as a mounting part to the rail, so it can be easily attached to the support rail laid on the panel side with one touch operation And handleability is greatly improved.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the examples shown in FIGS.
That is, the operation transformer of the illustrated embodiment has a configuration in which the transformer main body 1 shown in FIG. 5 is housed in the mold case 3 as shown in FIG. Here, the mold case 3 has a two-part structure in which a cover 5 is combined with a lower case 4. The lower case 4 includes a screw seat 4 a for fixing the base plate 1 e of the transformer main body 1 to the accommodation position with screws 2, and a case 4. The terminal block 4c combined with the phase separation wall 4b so that the external connection terminals 6 on the input side and the output side can be assembled by being distributed to the front and rear ends, and the support rail laid on the panel side on the back side of the bottom. Rail groove 4d is formed. In order to attach and attach the cover 5 to the lower case 4, an engaging claw 4 e is provided on a side wall surface of the lower case 4, and an engaging claw is provided on the side wall surface of the cover 5 opposed to the engaging claw 4 e. An engaging hole 5a for hooking and stopping is formed.
[0010]
The external connection terminal 6 includes a terminal screw 6a, a U-shaped terminal fitting 6b into which the terminal screw 6a is inserted, and a nut plate mounted on the terminal block 6c and screwed with the terminal screw 6a. 6c.
In the illustrated embodiment, the external connection terminal 6 and the primary and secondary lead wires 1c and 1d drawn from the transformer body 1 are connected inside the mold case 3 as a means for connecting. A plate 7 and a connection plate 8 are provided. Here, the printed board 7 has a through hole 7a for inserting the lead wires 1c and 1d into the board, a through hole 7b for inserting the upper end of the connection plate 8, and a wiring pattern (conductor pattern) 7c for conducting both the through holes. The lead wires 1c and 1d and the upper ends of the connection plates 8 are inserted into through holes and soldered after being arranged above the transformer body 1. The lower end of the connection plate 8 extends to the terminal block 4c of the lower case 4, overlaps with the nut plate 6c, and is fastened together by the terminal screws 6a.
[0011]
FIG. 2 shows a state in which the transformer body 1 is accommodated in the mold case 3, and the lead wires 1 c and 1 d of the transformer body 1 and the external connection terminals 6 are internally connected via the printed board 7 and the connection plate 8. FIG. 4 is an external view of an assembled state of an operation transformer in which a cover 5 is further attached to a lower case 4.
On the other hand, on the bottom rear side of the lower case 3, as shown in FIG. 3, the engaging claw 4 f protruding into the groove from the opening edge of the concave rail groove 4 d and the claw 4 g-1 at the tip are directed toward the rail groove 4 d. It has a slider 4g that appears and disappears by manual operation. The slider 4g is assembled to the case with a spring 4g-2 so that the claw portion 4g projects into the rail groove 4d.
[0012]
In order to mount the operation transformer assembly (see FIG. 2) on an operation panel or the like, the claw of the slider 4g is retracted from the rail groove 4d, and then a support rail (U channel type) laid in the panel. The rail groove 4 d is fitted into the rail 9. Here, when the hand is released from the slider 4g, the slider protrudes, and the hooks 4f, 4g-1 are hooked on the side edges of the support rail 9 as shown in FIG. Then, the input line on the power supply side and the output line on the load side to be wired in the panel are inserted between the terminal fitting 6b of the external connection terminal 6 and the connection plate 8 which are separately arranged at both front and rear ends of the mold case 3, and the terminal is connected. The connection is fixed by tightening the screw 6a. This completes the operation of mounting the operation transformer.
[0013]
In order to remove the operation transformer from the panel for maintenance and inspection, the terminal screw 6a is loosened to disconnect the input line and the output line, and then the slider 4g is moved backward to be removed from the support rail 9.
[0014]
【The invention's effect】
As described above, according to the configuration of the present invention, the transformer body is incorporated in the mold case, and external connection terminals for connecting input and output lines are provided at the front and rear ends of the mold case, and By providing an internal connection between the lead wires of the transformer main body and a mounting portion that fits and locks into the U-channel type support rail laid on the panel side on the bottom back side of the mold case,
The transformer body and all the parts for internal connection are housed in an insulating mold case, so that the live parts are not exposed to the outside, ensuring high safety. There is no danger that the insulation will deteriorate due to the adhesion. Further, since the connection between the external input line and output line and the operation transformer is performed via the external connection terminal provided in the mold case, the connection can be easily performed without soldering work. In addition, since the mold case is equipped with a rail mounting part, the slider can be mounted on the support rail laid on the panel with a single touch operation, making operation safer and easier to handle than the conventional configuration. Can provide a transformer for
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an operation transformer according to an embodiment of the present invention. FIG. 2 is an external perspective view showing an assembled state of FIG. 1. FIG. 3 is an operation transformer shown together with a rear structure of a mold case in FIG. FIG. 4 is an explanatory view of a procedure for attaching the operation transformer to the support rail on the panel side. FIG. 4 is a perspective view seen from the rear side showing a state where the operation transformer is fixed to the support rail. FIG. [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Transformer body 3 Mold case 4 Lower case 4a Screw seat 4b Phase space wall 4c Terminal block 4d Rail groove 4f Engagement claw 4g Slider 5 Cover 6 External connection terminal 7 Printed board 8 Connection board 9 Support rail

Claims (4)

トランス本体をモールドケースに組み込んだ構成になり、前記モールドケースの前後両端部に入力および出力線を接続する外部接続端子を配置して該端子とトランス本体の口出しリード線との間を内部接続するとともに、モールドケースの底部裏面側にUチャンネル形の支持レールに対応する取付部を備えたことを特徴とする操作用トランス。The transformer body is incorporated in a mold case, and external connection terminals for connecting input and output lines are arranged at both front and rear ends of the mold case to internally connect the terminals and the lead wires of the transformer body. An operation transformer, further comprising a mounting portion corresponding to a U-channel-shaped support rail on the bottom rear surface side of the mold case. 請求項1に記載の操作用トランスにおいて、モールドケースが下部ケースとカバーとの二分割構造になり、下部ケースのケース内底面にトランス本体を固定するねじ座を形成し、ケースの前後両端部には相間隔壁で仕切られた端子台を形成したことを特徴とする操作用トランス。2. The operation transformer according to claim 1, wherein the mold case has a two-part structure of a lower case and a cover, and a screw seat for fixing the transformer body is formed on the inner bottom surface of the case of the lower case. Is an operation transformer characterized by forming a terminal block partitioned by phase spacing walls. 請求項1に記載の操作用トランスにおいて、トランス本体の口出しリード線と外部接続端子との間を接続する内部接続手段として、各リード線に対応する配線パターンを形成したプリント板、および該プリント板に一端を接合し、他端を外部接続端子に重ね合わせて端子ねじで共締めする接続板を備えたことを特徴とする操作用トランス。2. The printed circuit board according to claim 1, wherein a wiring pattern corresponding to each lead wire is formed as an internal connection means for connecting between a lead wire of the transformer body and an external connection terminal, and the printed board. An operation transformer, comprising: a connection plate having one end joined to the first connection terminal and the other end overlapped with an external connection terminal and fastened together with terminal screws. 請求項1に記載の操作用トランスにおいて、支持レールへの取付部として、モールドケースの底部背面に支持レールが嵌入する凹状のレール溝を形成するとともに、該凹溝に向け側方から出没して支持レールに係止する爪付きスライダを設けたことを特徴とする操作用トランス。2. The operation transformer according to claim 1, wherein a concave rail groove in which the support rail fits is formed on the bottom rear surface of the mold case as a mounting portion to the support rail, and the concave / convex shape projects from the side toward the concave groove. An operation transformer, comprising a slider with a claw to be locked to a support rail.
JP2002315991A 2002-10-30 2002-10-30 Transformer for operation Withdrawn JP2004152981A (en)

Priority Applications (1)

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JP2002315991A JP2004152981A (en) 2002-10-30 2002-10-30 Transformer for operation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7825762B2 (en) 2003-12-10 2010-11-02 Tamura Corporation Transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7825762B2 (en) 2003-12-10 2010-11-02 Tamura Corporation Transformer

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