JP4327066B2 - Control equipment with transformer - Google Patents

Control equipment with transformer Download PDF

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Publication number
JP4327066B2
JP4327066B2 JP2004320519A JP2004320519A JP4327066B2 JP 4327066 B2 JP4327066 B2 JP 4327066B2 JP 2004320519 A JP2004320519 A JP 2004320519A JP 2004320519 A JP2004320519 A JP 2004320519A JP 4327066 B2 JP4327066 B2 JP 4327066B2
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Prior art keywords
transformer
terminal plate
terminal
cover
control device
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JP2006135004A (en
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栄治郎 下山
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Fuji Electric FA Components and Systems Co Ltd
Chichibu Fuji Co Ltd
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Fuji Electric FA Components and Systems Co Ltd
Chichibu Fuji Co Ltd
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Description

この発明は、表示灯や照光押ボタンスイッチなどの制御機器に関し、特にトランス付の制御機器に関する。   The present invention relates to control devices such as indicator lamps and illuminated pushbutton switches, and more particularly to a control device with a transformer.

表示灯などの制御機器については、例えば特許文献1に記載されているが、この制御機器として回路電圧を定格電圧に整合させるためのトランスを有するものがある。図3〜図5は、この種の制御機器としての角形表示灯を示し、図3は斜視図、図4は分解斜視図、図5は図3のトランス部分の要部縦断面図である。図3〜図5において、図示制御機器(角形表示灯)は図示しない盤パネルに取り付けられる制御機器本体1の背部(図3の下部)にトランスユニット2を有し、光源(ランプ)3はトランスユニット2に保持されている。制御機器本体2の前面(図3の上面)には、照光表示面4が形成されている。   Control devices such as indicator lamps are described in, for example, Patent Document 1, but some control devices include a transformer for matching a circuit voltage to a rated voltage. 3 to 5 show a rectangular indicator lamp as a control device of this type, FIG. 3 is a perspective view, FIG. 4 is an exploded perspective view, and FIG. 5 is a longitudinal sectional view of an essential part of the transformer part of FIG. 3 to 5, the illustrated control device (square indicator lamp) has a transformer unit 2 on the back (lower part of FIG. 3) of the control device main body 1 attached to a panel panel (not shown), and the light source (lamp) 3 is a transformer. It is held by unit 2. An illumination display surface 4 is formed on the front surface (the upper surface in FIG. 3) of the control device main body 2.

トランスユニット2は、制御機器本体1に連結されるトランスケース5と、トランスケース5に背面から収納されるトランス6(図5)と、トランスケース5の背面に装着されるトランスカバー7とを備えている。トランスカバー7は図示しない電線が接続される端子部を構成し、図5に示すように、トランスカバー7とトランス6とはこれらに跨るように側面(図5の左右方向)から挿入されるコ字状の端子板8により互いに結合されている。   The transformer unit 2 includes a transformer case 5 connected to the control device main body 1, a transformer 6 (FIG. 5) housed in the transformer case 5 from the back surface, and a transformer cover 7 attached to the back surface of the transformer case 5. ing. The transformer cover 7 constitutes a terminal portion to which an electric wire (not shown) is connected. As shown in FIG. 5, the transformer cover 7 and the transformer 6 are inserted from the side surface (left and right direction in FIG. 5) so as to straddle them. They are connected to each other by a character-shaped terminal board 8.

トランス6に挿入された端子板8は、脚部8aがトランス6の巻線に接続された端子金具9に接触して電気的な接続が達成されている。端子板8の他方の脚部8bにはねじ穴10が設けられ、トランスカバー7にはねじ穴10にねじ込まれる端子ねじ11が保持されている。図示しない電線は端子ねじ11により、圧着端子を介して端子板8に接続される。端子板8にはトランスケース5の側壁5aが被さり、これにより端子板8の抜け止めが達成されている。
特許第3122030号公報
The terminal plate 8 inserted into the transformer 6 is in electrical connection with the leg 8 a contacting the terminal fitting 9 connected to the winding of the transformer 6. A screw hole 10 is provided in the other leg portion 8 b of the terminal plate 8, and a terminal screw 11 to be screwed into the screw hole 10 is held in the transformer cover 7. An electric wire (not shown) is connected to the terminal plate 8 by a terminal screw 11 via a crimp terminal. The terminal plate 8 covers the side wall 5a of the transformer case 5, thereby preventing the terminal plate 8 from coming off.
Japanese Patent No. 3122030

上記した制御機器において、側面から挿入された端子板8はトランスケース5の側壁5aで押えられて抜け止めされている。ところが、従来、配線時に端子部に引張りなどの外力が加わると、側壁5aの反りあるいは破損により端子板8が抜け方向に位置ずれし、端子板8とトランス6の端子金具9との電気的接触が不安定となる結果、点灯不良などの不具合が生じる場合があった。   In the control device described above, the terminal plate 8 inserted from the side surface is held by the side wall 5a of the transformer case 5 and is prevented from coming off. However, conventionally, when an external force such as a tensile force is applied to the terminal portion during wiring, the terminal plate 8 is displaced in the pulling direction due to warping or breakage of the side wall 5a, and electrical contact between the terminal plate 8 and the terminal fitting 9 of the transformer 6 is achieved. As a result of instability, there may be a problem such as lighting failure.

そこで、この発明の課題は、外力に対する端子板の固定を強固にし、トランスとの接触信頼性を向上することにある。   Accordingly, an object of the present invention is to strengthen the fixation of the terminal plate against external force and improve the contact reliability with the transformer.

上記課題を解決するために、この発明は、盤パネルに取り付けられる制御機器本体の背部にトランスユニットを有し、このトランスユニットは前記制御機器本体に連結されるトランスケースと、このトランスケースに背面から収納されるトランスと、前記トランスケースの背面に装着されるトランスカバーとを備え、このトランスカバーと前記トランスとはこれらに跨るように側面から挿入されるコ字状の端子板により互いに結合されるとともに、前記端子板には前記トランスケースの側壁が被さるトランス付制御機器において、前記トランスカバーの上面に係合突起を形成するとともに、この係合突起に対応させて前記端子板の脚部に係合凹部を設け、前記トランスカバーに挿入した前記端子板の係合凹部を前記係合突起に係合させることにより、前記端子板を抜け方向に対して固定するようにするものである(請求項1)。   In order to solve the above-mentioned problems, the present invention has a transformer unit at the back of a control device main body attached to a panel panel. And a transformer cover mounted on the back of the transformer case. The transformer cover and the transformer are coupled to each other by a U-shaped terminal plate inserted from the side so as to straddle the transformer cover. In addition, in a control device with a transformer in which the side wall of the transformer case covers the terminal plate, an engagement protrusion is formed on the upper surface of the transformer cover, and the leg of the terminal plate is formed in correspondence with the engagement protrusion. An engagement recess is provided, and the engagement recess of the terminal board inserted into the transformer cover is engaged with the engagement protrusion. More is intended to be fixed relative to the detaching direction of the terminal plate (claim 1).

この発明によれば、端子板の係合凹部をトランスカバーの係合突起に係合させ、端子板を抜け方向に強固に固定することにより、配線時に端子部に外力が働いても位置ずれすることがなく、端子板とトランスとの接触信頼性が向上する。   According to the present invention, the engaging recess of the terminal plate is engaged with the engaging protrusion of the transformer cover, and the terminal plate is firmly fixed in the pulling direction, so that the position shifts even when an external force is applied to the terminal portion during wiring. This improves the contact reliability between the terminal board and the transformer.

図1及び図2は、従来技術で示した制御機器(角形表示灯)におけるこの発明の実施の形態を示し、図1は制御機器のトランス部分の要部縦断面図、図2は図1の制御機器の本体部分を除いた分解斜視図である。なお、従来例と対応する部分には同一の符号を用いるものとする。図1及び図2において、従来技術と相違するのは、トランスカバー7の上面に係合突起7a(図1)が形成され、端子板8の脚部8bに係合突起7aに対応する角穴からなる係合凹部8cが設けられている点である。   1 and 2 show an embodiment of the present invention in a control device (square indicator lamp) shown in the prior art, FIG. 1 is a longitudinal sectional view of a main part of a transformer portion of the control device, and FIG. It is a disassembled perspective view except the main-body part of a control apparatus. In addition, the same code | symbol shall be used for the part corresponding to a prior art example. 1 and 2, the difference from the prior art is that an engagement protrusion 7a (FIG. 1) is formed on the upper surface of the transformer cover 7, and a square hole corresponding to the engagement protrusion 7a is formed on the leg portion 8b of the terminal board 8. This is that an engaging recess 8c is formed.

ここで、トランス6の巻線ボビン12(図2)には側方に開口する平角穴13が設けられ、トランス巻線の引出し端末に接続されたL字形の端子金具9の先端は平角穴13内に導入されている。一方、トランスカバー7には側方に開口する溝穴14が設けられており、すでに述べたようにトランス6とトランスカバー7とに跨る端子板8の脚部8aは平角穴13に挿入されて端子金具9と接触し、脚部8bは溝穴14に挿入される。溝穴14に挿入された脚部8bは係合突起7aに突き当たるが、更に強く押し込まれることにより、係合突起7aの前面に形成された斜面の作用で持ち上がり、やがて図1に示すように係合凹部8cが係合突起7aに係合する。これにより、端子板8を抜け方向(図1の右方向)に対して固定される。   Here, the winding bobbin 12 (FIG. 2) of the transformer 6 is provided with a rectangular hole 13 that opens to the side, and the tip of the L-shaped terminal fitting 9 connected to the lead terminal of the transformer winding is a rectangular hole 13. Has been introduced in. On the other hand, the transformer cover 7 is provided with a slot 14 that opens to the side. As described above, the leg portion 8a of the terminal board 8 straddling the transformer 6 and the transformer cover 7 is inserted into the flat hole 13. Contacting the terminal fitting 9, the leg 8 b is inserted into the slot 14. The leg portion 8b inserted into the slot 14 abuts against the engaging protrusion 7a, but when it is further pushed in, it is lifted by the action of the inclined surface formed on the front surface of the engaging protrusion 7a, and eventually becomes engaged as shown in FIG. The mating recess 8c engages with the engaging protrusion 7a. Thereby, the terminal board 8 is fixed with respect to the pulling direction (right direction in FIG. 1).

トランスカバー7に結合されたトランス6にはトランスケース5が被せられ、端子板8の側面には図1に示すようにトランスケース5の側壁5aが接する。なお、図2において、トランスケース5は前後一対の連結脚5aを介して制御機器本体1(図3参照)に連結され、トランスカバー7は4隅の爪7bを介してトランスケース5に装着される。   A transformer case 5 is put on the transformer 6 coupled to the transformer cover 7, and a side wall 5 a of the transformer case 5 is in contact with the side surface of the terminal plate 8 as shown in FIG. 1. In FIG. 2, the transformer case 5 is connected to the control device main body 1 (see FIG. 3) via a pair of front and rear connecting legs 5a, and the transformer cover 7 is attached to the transformer case 5 via claws 7b at four corners. The

図示実施の形態において、電線は端子ねじ11により圧着端子を介して端子板8に接続されるが、
その際、電線から外力が働いて端子板8が横方向に引っ張られても、端子板8は係合突起7aとの係合で横方向に強固に固定されているので位置ずれすることがなく、端子金具9との接触が良好に保たれるとともに、トランスケース5の側壁5aに直接力がかかることがないので、側壁5aが破損したりすることがない。
In the illustrated embodiment, the electric wire is connected to the terminal plate 8 via the crimp terminal by the terminal screw 11,
At that time, even if the external force is applied from the electric wire and the terminal plate 8 is pulled in the lateral direction, the terminal plate 8 is firmly fixed in the lateral direction by the engagement with the engaging projection 7a, so that the position does not shift. In addition, the contact with the terminal fitting 9 is kept good and no force is directly applied to the side wall 5a of the transformer case 5, so that the side wall 5a is not damaged.

この発明の実施の形態を示す制御機器の要部縦断面図である。It is a principal part longitudinal cross-sectional view of the control apparatus which shows embodiment of this invention. 図1の制御機器の要部分解斜視図である。It is a principal part disassembled perspective view of the control apparatus of FIG. 従来例を示す制御機器の斜視図である。It is a perspective view of the control apparatus which shows a prior art example. 図3の制御機器の分解斜視図である。It is a disassembled perspective view of the control apparatus of FIG. 図3の制御機器の要部縦断面図である。It is a principal part longitudinal cross-sectional view of the control apparatus of FIG.

符号の説明Explanation of symbols

2 トランスユニット
5 トランスケース
6 トランス
7 トランスカバー
7a 係合突起
8 端子板
8c 係合凹部
9 端子金具

2 Transformer unit 5 Transformer case 6 Transformer 7 Transformer cover 7a Engagement protrusion 8 Terminal plate 8c Engagement recess 9 Terminal fitting

Claims (1)

盤パネルに取り付けられる制御機器本体の背部にトランスユニットを有し、このトランスユニットは前記制御機器本体に連結されるトランスケースと、このトランスケースに背面から収納されるトランスと、前記トランスケースの背面に装着されるトランスカバーとを備え、このトランスカバーと前記トランスとはこれらに跨るように側面から挿入されるコ字状の端子板により互いに結合されるとともに、前記端子板には前記トランスケースの側壁が被さるトランス付制御機器において、
前記トランスカバーの上面に係合突起を形成するとともに、この係合突起に対応させて前記端子板の脚部に係合凹部を設け、前記トランスカバーに挿入した前記端子板の係合凹部を前記係合突起に係合させることにより、前記端子板を抜け方向に対して固定するようにしたことを特徴とするトランス付制御機器。

There is a transformer unit at the back of the control device main body attached to the panel, and this transformer unit is connected to the control device main body, a transformer is housed in the transformer case from the back, and the back of the transformer case The transformer cover and the transformer are coupled to each other by a U-shaped terminal plate inserted from the side so as to straddle the transformer cover, and the terminal plate is connected to the transformer case. In control equipment with a transformer that the side wall covers,
An engagement protrusion is formed on the upper surface of the transformer cover, an engagement recess is provided in the leg portion of the terminal plate corresponding to the engagement protrusion, and the engagement recess of the terminal plate inserted into the transformer cover is A control device with a transformer, wherein the terminal board is fixed in the pulling direction by engaging with an engaging protrusion.

JP2004320519A 2004-11-04 2004-11-04 Control equipment with transformer Expired - Fee Related JP4327066B2 (en)

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JP4327066B2 true JP4327066B2 (en) 2009-09-09

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