JP2021005643A - Wound core transformer and assembly method therefor - Google Patents

Wound core transformer and assembly method therefor Download PDF

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JP2021005643A
JP2021005643A JP2019118902A JP2019118902A JP2021005643A JP 2021005643 A JP2021005643 A JP 2021005643A JP 2019118902 A JP2019118902 A JP 2019118902A JP 2019118902 A JP2019118902 A JP 2019118902A JP 2021005643 A JP2021005643 A JP 2021005643A
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iron core
transformer
core
coil
wound
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JP7288355B2 (en
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大毅 関谷
Daiki Sekiya
大毅 関谷
鈴木　敦
Atsushi Suzuki
敦 鈴木
純一 五百川
Junichi Iogawa
純一 五百川
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Hitachi Industrial Equipment Systems Co Ltd
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Abstract

To provide a wound core transformer that is suitable for being disassembled, carried in, and assembled at a site and an assembly method therefor.SOLUTION: A wound core transformer including a wound core and coils disposed at a plurality of legs of the wound core includes a core assembly work stand-cum-insulating plate provided between the coils and the wound core, the core assembly work stand-cum-insulating plate including a plurality of comb tooth parts inserted into holes of the coils and a connection part connecting one ends of the plurality of comb tooth parts.SELECTED DRAWING: Figure 1

Description

本発明は、巻鉄心を有する巻鉄心変圧器、および、分解搬入して現地での巻鉄心変圧器の組立方法に関する。 The present invention relates to a wound iron core transformer having a wound iron core, and a method of disassembling and carrying in the wound iron core transformer on site.

変圧器を建物に搬入する際に、搬入間口の寸法より変圧器の寸法が大きい場合がある。この時には、変圧器を各パーツ毎に分解して搬入し、現地で組み立てる。この分解対応は、モールド変圧器のみ可能である。 When loading a transformer into a building, the size of the transformer may be larger than the size of the loading frontage. At this time, the transformer is disassembled for each part, carried in, and assembled on site. This disassembly is possible only for molded transformers.

分解搬入を行う方法として積鉄心変圧器の分解搬入方法は確立されている。分解した鉄心、コイル、金具をそれぞれ分けて搬入し、組立工程としては、鉄心のみ組立起立を行った後、コイル挿入、鉄心、金具を組み立てし、検査後完成となる。 As a method for disassembling and carrying in, a method for disassembling and carrying in a steel core transformer has been established. The disassembled iron core, coil, and metal fittings are carried in separately, and as an assembly process, only the iron core is assembled and erected, and then the coil is inserted, the iron core, and the metal fittings are assembled, and the process is completed after inspection.

例えば特許文献１には、「コイル、鉄心コア部と鉄心ヨーク部とからなる鉄心、等の変圧器部品を分解搬入し現地組立する分解搬入変圧器の組立方法において、各相毎のコイル及び鉄心コア部を横置き状態で取付けた本体ベースを搬入し、そして、該鉄心コア部に鉄心ヨーク部を組合せて鉄心とすることを特徴とする分解搬入変圧器の組立方法。」と記載されている。 For example, in Patent Document 1, "a coil and an iron core for each phase are described in a method of assembling a disassembled and carried-in transformer in which transformer parts such as a coil, an iron core composed of an iron core core portion and an iron core yoke portion are disassembled and carried in and locally assembled. A method of assembling a disassembled carry-in transformer, which comprises carrying in a main body base to which a core portion is mounted horizontally and then combining the iron core yoke portion with an iron core yoke portion to form an iron core. " ..

特開２０００−１１４０５６号公報JP-A-2000-114506

現在、積鉄心変圧器で現地分解搬入が可能となっている。しかし、現状の方法では鉄心の組み合わせ作業に多くの時間がかかり、全体としての作業日数が長くなることや部品点数も多いことから、分解搬入にかかるコストが高くなる等の課題がある。 Currently, it is possible to disassemble and carry in on-site with a steel core transformer. However, with the current method, it takes a lot of time to combine the iron cores, the total number of working days is long, and the number of parts is large, so that there are problems such as high cost for disassembling and carrying in.

これに対して、巻鉄心変圧器の場合は、搬入後、作業台上にコイルを配置し、鉄心を挿入して組立作業を行い、金具取付後に作業台を反転して変圧器を起立し、検査を実施して完成となる。巻鉄心とした場合には、現地での鉄心の組み合わせ作業と組立作業台が必要となるため、作業が簡易にできないと作業台が大型化し、また、作業日数が必要となる。現在、巻鉄心の現地分解搬入の実例は見当たらない。 On the other hand, in the case of a wound iron core transformer, after carrying in, a coil is placed on the workbench, the iron core is inserted and assembly work is performed, and after the metal fittings are attached, the workbench is inverted and the transformer stands up. It will be inspected and completed. In the case of a wound iron core, on-site combination work of iron cores and an assembly workbench are required. Therefore, if the work cannot be simplified, the workbench will become large and work days will be required. At present, there are no examples of local disassembly and delivery of wound iron cores.

本発明は、分解搬入して現地での組立に好適な巻鉄心変圧器、および、その組立方法を提供することを目的とする。 An object of the present invention is to provide a wound iron core transformer suitable for disassembly and carry-in for on-site assembly, and an assembly method thereof.

上記課題を解決するために、本発明では、巻鉄心変圧器において、コイルと鉄心間に鉄心組立作業台兼用絶縁板を設ける。 In order to solve the above problems, in the present invention, in the wound iron core transformer, an insulating plate that also serves as an iron core assembly workbench is provided between the coil and the iron core.

本発明の「巻鉄心変圧器」の一例を挙げるならば、巻鉄心と、該巻鉄心の複数の脚部に配置したコイルを有する巻鉄心変圧器であって、前記コイルの穴部に挿入する複数のくし歯部と、前記複数のくし歯部の一端を接続する接続部とを有する鉄心組立作業台兼用絶縁板を、前記コイルと前記巻鉄心との間に設けたものである。 To give an example of the "rolled iron core transformer" of the present invention, it is a wound iron core transformer having a wound iron core and coils arranged on a plurality of legs of the wound iron core, and is inserted into a hole of the coil. An insulating plate that also serves as an iron core assembly workbench having a plurality of comb tooth portions and a connecting portion that connects one ends of the plurality of comb tooth portions is provided between the coil and the wound iron core.

また、本発明の巻鉄心変圧器の組立方法の一例を挙げるならば、巻鉄心と、該巻鉄心の複数の脚部に配置したコイルを有する巻鉄心変圧器の組立方法であって、作業台上に、複数のコイルを並べて配置するステップと、複数のくし歯部と、前記複数のくし歯部の一端を連結する接続部とを有する鉄心組立作業台兼用絶縁板の前記くし歯部を、それぞれ前記複数のコイルの穴部に挿入するステップと、前記鉄心組立作業台兼用絶縁板を作業台として、前記巻鉄心を前記コイルの穴部に挿入して巻鉄心を形成するステップと、を備えるものである。 Further, to give an example of the method of assembling the wound iron core transformer of the present invention, it is a method of assembling a wound iron core transformer having a coiled iron core and coils arranged on a plurality of legs of the wound iron core, and is a workbench. The comb tooth portion of the iron core assembly workbench and insulating plate having a step of arranging a plurality of coils side by side, a plurality of comb tooth portions, and a connecting portion connecting one ends of the plurality of comb tooth portions. Each includes a step of inserting into the holes of the plurality of coils and a step of inserting the wound iron core into the holes of the coil to form the wound iron core by using the insulating plate also used as an iron core assembly workbench as a workbench. It is a thing.

本発明の巻鉄心変圧器によれば、分解搬入して現地での組立に好適な巻鉄心変圧器を提供することができる。加えて、巻鉄心変圧器の短絡強化および耐震強化を図ることが可能となる。 According to the wound iron core transformer of the present invention, it is possible to provide a wound iron core transformer suitable for disassembly and carrying in and assembling on site. In addition, it will be possible to strengthen the short circuit and seismic resistance of the wound iron core transformer.

また、本発明の巻鉄心変圧器の組立方法によれば、積鉄心変圧器の分解搬入方法と比べて、鉄心組合せ作業の簡易化を図れるため、分解搬入して現地での組立作業日数を減少させることが可能となる。そして、分解搬入にかかるコストの低減やトップランナー適用品としての納入が可能となる。 Further, according to the method of assembling the wound iron core transformer of the present invention, the iron core combination work can be simplified as compared with the method of disassembling and carrying in the product core transformer, so that the number of days for disassembling and carrying in and assembling on-site is reduced. It becomes possible to make it. Then, the cost for disassembling and carrying in can be reduced and the product can be delivered as a Top Runner application product.

上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。 Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

実施例１の巻鉄心変圧器の一例を示す平面図である。It is a top view which shows an example of the winding iron core transformer of Example 1. FIG. 図１の巻鉄心変圧器のＡ−Ａ断面図である。It is sectional drawing AA of the winding iron core transformer of FIG. 図１の巻鉄心変圧器に用いる鉄心組立作業台兼用絶縁板を示す図である。It is a figure which shows the insulation plate which also serves as the iron core assembly workbench used for the winding iron core transformer of FIG. 実施例１の巻鉄心変圧器の組立方法を示す図である。It is a figure which shows the assembly method of the winding iron core transformer of Example 1. FIG. 鉄心組立作業台兼用絶縁板の変形例を示す図である。It is a figure which shows the modification of the insulating plate which also serves as an iron core assembly workbench. 鉄心組立作業台兼用絶縁板の他の変形例を示す図である。It is a figure which shows the other modification of the insulating plate which also serves as an iron core assembly workbench. 実施例２の単相巻鉄心変圧器の一例を示す平面図である。It is a top view which shows an example of the single-phase winding iron core transformer of Example 2. FIG. 図７の巻鉄心変圧器のＢ−Ｂ断面図である。It is BB sectional view of the winding iron core transformer of FIG. 実施例３の巻鉄心変圧器の組立方法の一部を示す図である。It is a figure which shows a part of the assembly method of the winding iron core transformer of Example 3. 実施例３の巻鉄心変圧器の組立方法の一部を示す図である。It is a figure which shows a part of the assembly method of the winding iron core transformer of Example 3. 実施例４の鉄心組立作業台兼用絶縁板を示す図である。It is a figure which shows the insulating plate which also serves as the iron core assembly workbench of Example 4.

以下、図面を用いて、本発明の実施例を説明する。なお、実施例を説明するための各図において、同一の構成要素にはなるべく同一の名称、符号を付して、その繰り返しの説明を省略する。 Hereinafter, examples of the present invention will be described with reference to the drawings. In addition, in each figure for demonstrating an embodiment, the same constituent elements are given the same name and reference numeral as much as possible, and the repeated description thereof will be omitted.

図１に、本発明の実施例１の巻鉄心変圧器の平面図を、また、図２に、図１のＡ−Ａ断面図を示す。実施例１は、本発明を三相三脚型変圧器に適用した例である。 FIG. 1 shows a plan view of the wound iron core transformer according to the first embodiment of the present invention, and FIG. 2 shows a sectional view taken along the line AA of FIG. Example 1 is an example in which the present invention is applied to a three-phase tripod type transformer.

鉄心２は、隣接配置した２つの内鉄心２ａ１，２ａ２と、２つの内鉄心２ａ１，２ａ２の周囲を取り囲む外鉄心２ｂから、構成されている。鉄心２の３つの脚には、それぞれ一次コイル３および二次コイル４が設けられ、三相三脚型変圧器を構成している。 The iron core 2 is composed of two inner cores 2a 1 and 2a 2 arranged adjacent to each other and an outer core 2b surrounding the two inner cores 2a 1 and 2a 2 . A primary coil 3 and a secondary coil 4 are provided on the three legs of the iron core 2, respectively, to form a three-phase tripod type transformer.

コイル３および４の穴部には、鉄心組立作業台兼用絶縁板１が設けられている。図３に、鉄心組立作業台兼用絶縁板の一例を示す。鉄心組立作業台兼用絶縁板１は、コイルの穴部に挿入される複数のくし歯部１ａと、複数のくし歯部１ａの一端を接続する接続部１ｂとを備え、絶縁板から構成されている。そして、鉄心組立作業台兼用絶縁板１はＥ字形状をしており、鉄心組立作業台兼用絶縁板１の大きさは、図１に示すように、平面において略鉄心の大きさである。また、鉄心組立作業台兼用絶縁板１は、鉄心２を載せることができる厚さ強度を備えている。 An insulating plate 1 that also serves as an iron core assembly workbench is provided in the holes of the coils 3 and 4. FIG. 3 shows an example of an insulating plate that also serves as an iron core assembly workbench. The iron core assembly workbench combined insulating plate 1 includes a plurality of comb tooth portions 1a inserted into the holes of the coil and a connecting portion 1b connecting one ends of the plurality of comb tooth portions 1a, and is composed of an insulating plate. There is. The insulating plate 1 also used as the iron core assembly workbench has an E shape, and the size of the insulating plate 1 also used as the iron core assembly workbench is substantially the size of the iron core in a plane as shown in FIG. Further, the insulating plate 1 also used as an iron core assembly workbench has a thickness and strength on which an iron core 2 can be placed.

巻鉄心変圧器の組み立てにおいて、鉄心をコイルに挿入する際には、鉄心とコイルの高さを合わせるための高さ調整具を備える専用のラップ作業台を用いて作業を行っている。しかし、現地分解搬入の場合には、現地に専用の作業台を持ち込むことは困難である。そこで、本発明では鉄心組立作業台兼用絶縁板１を用いて組立作業台を簡素化する。さらに、絶縁板がコイルと鉄心の間に入ることによりコイル内周の傷つきを防止し、また部品として併用し製品に組み込むことにより短絡強化や耐震強化を図る。 In assembling the wound iron core transformer, when the iron core is inserted into the coil, the work is performed using a dedicated lap workbench equipped with a height adjuster for adjusting the height of the iron core and the coil. However, in the case of on-site disassembly and delivery, it is difficult to bring a dedicated workbench to the site. Therefore, in the present invention, the assembly workbench is simplified by using the insulating plate 1 that also serves as the iron core assembly workbench. Furthermore, the insulating plate is inserted between the coil and the iron core to prevent damage to the inner circumference of the coil, and it is also used as a component and incorporated into the product to strengthen short circuits and strengthen seismic resistance.

図４に、鉄心組立作業台兼用絶縁板１を用いた、実施例１の巻鉄心変圧器の組立方法を示す。先ず、図４（ａ）に示すように、分解搬入用作業台６の上に３つのコイル３を並べて配置する。次に、図４（ｂ）に示すように、３つのコイル３の穴部にそれぞれ鉄心組立作業台兼用絶縁板１のくし歯部を挿入する。次に、図４（ｃ）に示すように、鉄心組立作業台兼用絶縁板１の上面に、一端を開いた巻鉄心２を載置し、コイルの穴部に挿入し、開いた巻鉄心の一端を重ね合わせて巻鉄心を形成する。鉄心組立作業台兼用絶縁板１の手前側の接続部１ｂが、鉄心２を最初に載置するためのラップ作業台の役目を果たす。 FIG. 4 shows an assembly method of the wound iron core transformer of the first embodiment using the insulating plate 1 also used as an iron core assembly workbench. First, as shown in FIG. 4A, the three coils 3 are arranged side by side on the disassembly / loading workbench 6. Next, as shown in FIG. 4B, the comb teeth of the insulating plate 1 also used as the iron core assembly workbench are inserted into the holes of the three coils 3, respectively. Next, as shown in FIG. 4C, a wound iron core 2 having an open end is placed on the upper surface of the insulating plate 1 also used as an iron core assembly workbench, and the wound iron core 2 is inserted into a hole of a coil to form an open wound iron core. One ends are overlapped to form a wound iron core. The connection portion 1b on the front side of the insulating plate 1 also used as the iron core assembly workbench serves as a lap workbench for first mounting the iron core 2.

本実施例の変圧器は、図１〜３に基づけば、第一の内鉄心２ａ１と、前記第一の内鉄心に並べられた第二の内鉄心２ａ２と、前記第一の内鉄心と前記第二の内鉄心とを覆うように配置された外鉄心２ｂと、前記第一の内鉄心と前記外鉄心に巻回された第一のコイル３１と、前記第一の内鉄心と前記第二の内鉄心に巻回された第二のコイル３２と、前記第二の内鉄心と前記外鉄心に巻回された第三のコイル３３と、を有する変圧器であって、前記第一のコイル３１の内側と前記第一の内鉄心及び前記外鉄心との間に該第第一のコイルの高さよりも長い第一の板状部材（くし歯部１ａ１）が配置され、前記第二のコイル３２の内側と前記第一の内鉄心及び前記第二の内鉄心との間に該第第二のコイルの高さよりも長い第二の板状部材（くし歯部１ａ２）が配置され、前記第三のコイル３３の内側と前記第二の内鉄心及び前記外鉄心との間に該第第三のコイルの高さよりも長い第三の板状部材（くし歯部１ａ３）が配置され、前記第一の板状部材（くし歯部１ａ１）と前記第二の板状部材（くし歯部１ａ２）が前記第一のコイルより低いまたは高い位置で接続される第一の接続部（接続部１ｂ１）を有し、前記第二の板状部材（くし歯部１ａ２）と前記第三の板状部材（くし歯部１ａ３）が前記第二のコイルより低いまたは高い位置で接続される第二の接続部（接続部１ｂ２）を有するものである。 Based on FIGS. 1 to 3, the transformer of the present embodiment has a first inner core 2a 1 , a second inner core 2a 2 arranged in the first inner core, and the first inner core. and the a second inner core and the outer core 2b disposed so as to cover the, the first coil 3 1 wound around the outer core and the first inner core, said first inner core A transformer having a second coil 3 2 wound around the second inner core, and a third coil 3 3 wound around the second inner core and the outer core. It said longer than the height of the first coil the first plate member (comb teeth 1a 1) is disposed between the first coil 3 1 of the inner and the first inner core and the outer core is, the second coil 3 the second inner and the first inner core and the longer than the height of said second coil between the second inner core second plate member (comb teeth 1a 2) is arranged, the third coil 3 3 inside and the second inner core and the third plate member longer than the height of said third coil between the outer core (comb The tooth portion 1a 3 ) is arranged, and the first plate-shaped member (comb tooth portion 1a 1 ) and the second plate-shaped member (comb tooth portion 1a 2 ) are located lower or higher than the first coil. It has a first connecting portion (connecting portion 1b 1 ) to be connected, and the second plate-shaped member (comb tooth portion 1a 2 ) and the third plate-shaped member (comb tooth portion 1a 3 ) are the first. It has a second connection (connection 1b 2 ) that is connected at a position lower or higher than the second coil.

また、前記第一の板状部材（くし歯部１ａ１）、前記第二の板状部材（くし歯部１ａ２）、前記第三の板状部材（くし歯部１ａ３）、前記第一の接続部（接続部１ｂ１）及び前記第二の接続部（接続部１ｂ２）は該変圧器の正面側に配置されている。また、前記第一の板状部材（くし歯部１ａ１）、前記第二の板状部材（くし歯部１ａ２）および前記第三の板状部材（くし歯部１ａ３）のうち前記第一の接続部（接続部１ｂ１）または前記第二の接続部（接続部１ｂ２）が接続されていない端面は開放端である。また、前記第一の板状部材（くし歯部１ａ１）、前記第二の板状部材（くし歯部１ａ２）、前記第三の板状部材（くし歯部１ａ３）、前記第一の接続部（接続部１ｂ１）及び前記第二の接続部（接続部１ｂ２）がそれぞれ接続される形状はＥ字形状である。 Further, the first plate-shaped member (comb tooth portion 1a 1 ), the second plate-shaped member (comb tooth portion 1a 2 ), the third plate-shaped member (comb tooth portion 1a 3 ), and the first plate-shaped member. (Connecting portion 1b 1 ) and the second connecting portion (connecting portion 1b 2 ) are arranged on the front side of the transformer. The first of the first plate-shaped member (comb tooth portion 1a 1 ), the second plate-shaped member (comb tooth portion 1a 2 ), and the third plate-shaped member (comb tooth portion 1a 3 ). The end face to which one connection portion (connection portion 1b 1 ) or the second connection portion (connection portion 1b 2 ) is not connected is an open end. Further, the first plate-shaped member (comb tooth portion 1a 1 ), the second plate-shaped member (comb tooth portion 1a 2 ), the third plate-shaped member (comb tooth portion 1a 3 ), and the first plate-shaped member. The shape in which the connection portion (connection portion 1b 1 ) and the second connection portion (connection portion 1b 2 ) are connected is an E-shape.

本実施例の巻鉄心変圧器によれば、鉄心組立作業台兼用絶縁板１を備えることにより、分解搬入して現地での組立に好適な巻鉄心変圧器を提供することができる。また、コイルと鉄心の間に絶縁板を備えているので、コイル内周の傷つきを防ぐことができ、絶縁を強化することができ、さらに、コイルが固定されることにより耐震強化を図ることができる。 According to the wound iron core transformer of this embodiment, by providing the insulating plate 1 also used as an iron core assembly workbench, it is possible to provide a wound iron core transformer suitable for disassembly and carrying in and assembling on site. In addition, since an insulating plate is provided between the coil and the iron core, damage to the inner circumference of the coil can be prevented, insulation can be strengthened, and the coil can be fixed to strengthen earthquake resistance. it can.

また、本実施例の巻鉄心変圧器の組立方法によれば、積鉄心変圧器の分解搬入方法と比べて、鉄心組合せ作業の簡易化を図れるため、分解搬入して現地での組立作業日数を減少させることが可能となる。そして、分解搬入にかかるコストの低減やトップランナー適用品としての納入が可能となる。 Further, according to the method of assembling the wound iron core transformer of this embodiment, the iron core combination work can be simplified as compared with the method of disassembling and carrying in the product iron core transformer. It is possible to reduce it. Then, the cost for disassembling and carrying in can be reduced and the product can be delivered as a Top Runner application product.

図５に、本実施例の鉄心組立作業台兼用絶縁板の変形例を示す。この変形例は、鉄心組立作業台兼用絶縁板のくし歯部１ａの先端に丸み１ｃを持たせたものである。くし歯部の先端に丸み１ｃを持たせることにより、コイルを傷つけることを防止できる。 FIG. 5 shows a modified example of the insulating plate that also serves as the iron core assembly workbench of this embodiment. In this modification, the tip of the comb tooth portion 1a of the insulating plate that also serves as an iron core assembly workbench is provided with a roundness 1c. By giving the tip of the comb tooth portion a roundness 1c, it is possible to prevent the coil from being damaged.

図６に、本実施例の鉄心組立作業台兼用絶縁板の他の変形例を示す。この変形例は、鉄心組立作業台兼用絶縁板のくし歯部１ａの先端を尖らせテーパー部１ｄを設けたものである。くし歯部の先端にテーパー部１ｄを設けることにより、コイルへの差し込みを容易にすることができる。 FIG. 6 shows another modification of the insulating plate that also serves as the iron core assembly workbench of this embodiment. In this modification, the tip of the comb tooth portion 1a of the insulating plate that also serves as the iron core assembly workbench is sharpened and the tapered portion 1d is provided. By providing the tapered portion 1d at the tip of the comb tooth portion, the insertion into the coil can be facilitated.

図７に、本発明の実施例２の巻鉄心変圧器の平面図を、また、図８に、図７のＢ−Ｂ断面図を示す。実施例２は、本発明を単相変圧器に適用した例である。 FIG. 7 shows a plan view of the wound iron core transformer according to the second embodiment of the present invention, and FIG. 8 shows a cross-sectional view taken along the line BB of FIG. 7. The second embodiment is an example in which the present invention is applied to a single-phase transformer.

鉄心２の２つの脚には、それぞれ一次コイル３および二次コイル４が設けられ、単相型変圧器を構成している。コイル３および４の穴部には、鉄心組立作業台兼用絶縁板１が設けられている。鉄心組立作業台兼用絶縁板１は、実施例１と同様に、コイルの穴部に挿入される複数のくし歯部１ａと、複数のくし歯部１ａの一端を接続する接続部１ｂとを備え、絶縁板から構成されている。そして、本実施例では、鉄心組立作業台兼用絶縁板１はコ字形状をしており、鉄心組立作業台兼用絶縁板１の大きさは、図７に示すように、平面において略鉄心の大きさである。また、鉄心組立作業台兼用絶縁板１は、鉄心２を載せることができる厚さ強度を備えている。 A primary coil 3 and a secondary coil 4 are provided on the two legs of the iron core 2, respectively, to form a single-phase transformer. An insulating plate 1 that also serves as an iron core assembly workbench is provided in the holes of the coils 3 and 4. Similar to the first embodiment, the iron core assembly workbench combined insulating plate 1 includes a plurality of comb tooth portions 1a inserted into the holes of the coil and a connecting portion 1b connecting one ends of the plurality of comb tooth portions 1a. , Consists of an insulating plate. In this embodiment, the iron core assembly workbench / insulating plate 1 has a U-shape, and the size of the iron core assembly workbench / insulating plate 1 is substantially the size of the iron core in a plane as shown in FIG. That's right. Further, the insulating plate 1 also used as an iron core assembly workbench has a thickness and strength on which an iron core 2 can be placed.

本実施例の単相型巻鉄心変圧器によれば、実施例１と同様に、鉄心組立作業台兼用絶縁板１を備えることにより、分解搬入して現地での組立に好適な巻鉄心変圧器を提供することができる。また、コイルと鉄心の間に絶縁板を備えているので、コイル内周の傷つきを防ぐことができ、絶縁を強化することができ、さらに、コイルが固定されることにより耐震強化を図ることができる。 According to the single-phase wound core transformer of this embodiment, as in the case of the first embodiment, by providing the insulating plate 1 also used as the iron core assembly workbench, the wound iron core transformer suitable for disassembly and carrying in and assembling on site. Can be provided. In addition, since an insulating plate is provided between the coil and the iron core, damage to the inner circumference of the coil can be prevented, insulation can be strengthened, and the coil can be fixed to strengthen earthquake resistance. it can.

図９，１０に、実施例３の巻鉄心変圧器の組立方法の一部を示す。実施例３は、作業台上で巻鉄心変圧器を組み立てた後に、巻鉄心変圧器を起立させる方法である。 FIGS. 9 and 10 show a part of the method of assembling the wound iron core transformer of the third embodiment. The third embodiment is a method in which the winding iron core transformer is erected after assembling the winding iron core transformer on the workbench.

図９において、作業台６上において、コイル３に鉄心を挿入し鉄心ラップ後に、上締金具９および下締金具１０を取り付ける。そして、変圧器を起立させる際に、図の如く、作業台６と変圧器転倒防止用ベース７を固定する。 In FIG. 9, on the workbench 6, the iron core is inserted into the coil 3, and after the iron core is wrapped, the upper fastener 9 and the lower fastener 10 are attached. Then, when the transformer is erected, the workbench 6 and the transformer fall prevention base 7 are fixed as shown in the figure.

そして、図１０（ａ）に示すように、作業台６の一端と変圧器転倒防止用ベース７の一端に吊り具８を取り付け、吊り具８をクレーンに取り付ける。図１０（ｂ）に示すように、作業台６側の吊り具８を引き上げ、変圧器転倒防止用ベース７側の吊り具８を下ろすことにより、次第に変圧器が立ち上がる。そして、図１０（ｃ）に示すように、変圧器が直立したところで、作業を終了する。なお、変圧器を分解搬入する場合は、クレーンとしては、例えば分解して移動可能な簡易型のものを用いればよい。 Then, as shown in FIG. 10A, the hanger 8 is attached to one end of the workbench 6 and one end of the transformer fall prevention base 7, and the hanger 8 is attached to the crane. As shown in FIG. 10B, the transformer is gradually raised by pulling up the hanger 8 on the workbench 6 side and lowering the hanger 8 on the transformer fall prevention base 7 side. Then, as shown in FIG. 10 (c), the work is completed when the transformer is upright. When disassembling and carrying in the transformer, for example, a simple crane that can be disassembled and moved may be used.

本実施例によれば、作業台と製品用ベースを固定して変圧器を起立させることにより、変圧器の転倒を防止することができる。また、変圧器を分解搬入して現地で組み立てることが容易である。 According to this embodiment, by fixing the workbench and the product base and erecting the transformer, it is possible to prevent the transformer from tipping over. In addition, it is easy to disassemble and carry in the transformer and assemble it on site.

図１１に、本発明の実施例４の鉄心組立作業台兼用絶縁板を示し、図１１(a)は平面図を、図１１（ｂ）は右側面図を示す。 11A and 11B show an insulating plate also used as an iron core assembly workbench according to a fourth embodiment of the present invention, FIG. 11A shows a plan view, and FIG. 11B shows a right side view.

図に示すように、本実施例の鉄心組立作業台兼用絶縁板１は、根本部分である接続部１ｂの厚みが大きく、くし歯部の先端に向かうにつれて次第に厚みが小さくなっている。本実施例の鉄心組立作業台兼用絶縁板１は、実施例１と同様に、作業台の上に並べて配置したコイルの穴部にそれぞれ鉄心組立作業台兼用絶縁板のくし歯部を挿入する。そして、鉄心組立作業台兼用絶縁板の上面に、一端を開いた巻鉄心を載置し、コイルの穴部に挿入し、開いた巻鉄心の一端を重ね合わせて巻鉄心を形成する。 As shown in the figure, the insulating plate 1 also used as the iron core assembly workbench of this embodiment has a large thickness of the connecting portion 1b which is a root portion, and gradually decreases in thickness toward the tip of the comb tooth portion. In the iron core assembly workbench / insulating plate 1 of the present embodiment, similarly to the first embodiment, the comb teeth of the iron core assembly workbench / insulating plate are inserted into the holes of the coils arranged side by side on the workbench. Then, a wound iron core having one end opened is placed on the upper surface of the insulating plate that also serves as an iron core assembly workbench, inserted into a hole of a coil, and one end of the opened wound iron core is overlapped to form a wound iron core.

本実施例の鉄心組立作業台兼用絶縁板によれば、厚みがくし歯部１ａの先端に向かうにつれて次第に小さくなっているので、鉄心のコイルへの挿入が容易となる。また、根本部分において絶縁板の厚みが厚くなっているので、コイルと鉄心を固定するクサビの作用が期待できる。 According to the insulating plate that also serves as the iron core assembly workbench of the present embodiment, the thickness gradually decreases toward the tip of the comb tooth portion 1a, so that the iron core can be easily inserted into the coil. In addition, since the insulating plate is thicker at the root portion, the action of a wedge that fixes the coil and the iron core can be expected.

１…鉄心組立作業台兼用絶縁板
１ａ…くし歯部
１ｂ…接続部
１ｃ…丸み
１ｄ…テーパー部
２…巻鉄心
２ａ…内鉄心
２ｂ…外鉄心
３…一次コイル
４…二次コイル
６…分解搬入用作業台
７…変圧器転倒防止用ベース
８…吊り具
９…上締金具
１０…下締金具 1 ... Insulating plate 1a that also serves as an iron core assembly workbench 1a ... Comb tooth part 1b ... Connection part 1c ... Rounding 1d ... Tapered part 2 ... Winding iron core 2a ... Inner iron core 2b ... Outer iron core 3 ... Primary coil 4 ... Secondary coil 6 ... Workbench 7 ... Transformer fall prevention base 8 ... Hanging tool 9 ... Upper fastener 10 ... Lower fastener

Claims (15)

巻鉄心と、該巻鉄心の複数の脚部に配置したコイルを有する巻鉄心変圧器であって、
前記コイルの穴部に挿入する複数のくし歯部と、前記複数のくし歯部の一端を接続する接続部とを有する鉄心組立作業台兼用絶縁板を、前記コイルと前記巻鉄心との間に設けたことを特徴とする巻鉄心変圧器。 A winding core transformer having a winding core and coils arranged on a plurality of legs of the winding core.
An insulating plate that also serves as an iron core assembly workbench having a plurality of comb teeth to be inserted into the holes of the coil and a connecting portion to connect one ends of the plurality of comb teeth is provided between the coil and the wound iron core. A winding iron core transformer characterized by being installed. 請求項１に記載の巻鉄心変圧器において、
前記鉄心組立作業台兼用絶縁板の平面における大きさは、略前記巻鉄心の大きさであることを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
A wound iron core transformer characterized in that the size of the insulating plate also used as an iron core assembly workbench on a flat surface is substantially the size of the wound iron core. 請求項１に記載の巻鉄心変圧器において、
前記鉄心組立作業台兼用絶縁板のくし歯部の前記接続部とは反対側の他端は、開放端であることを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
A wound iron core transformer characterized in that the other end of the comb tooth portion of the insulating plate also used as an iron core assembly workbench on the opposite side to the connecting portion is an open end. 請求項１に記載の巻鉄心変圧器において、
前記巻鉄心は、２つの内鉄心と、前記２つの内鉄心を取り囲む外鉄心とから構成され、
前記コイルは、前記巻鉄心の３つの脚部に配置され、
前記鉄心組立作業台兼用絶縁板は、３つの前記コイルの穴部に前記くし歯部が挿入されるＥ字形状であることを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
The wound core is composed of two inner cores and an outer core surrounding the two inner cores.
The coil is arranged on the three legs of the wound iron core.
The insulating plate also used as an iron core assembly workbench is a wound iron core transformer having an E-shape in which the comb teeth are inserted into the three holes of the coil. 請求項１に記載の巻鉄心変圧器において、
前記巻鉄心は、１つの巻鉄心から構成され、
前記コイルは、前記１つの巻鉄心の２つの脚部に配置され、
前記鉄心組立作業台兼用絶縁板は、２つの前記コイルの穴部に前記くし歯部が挿入されるコ字形状であることを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
The wound core is composed of one wound core.
The coil is arranged on the two legs of the one wound iron core.
The insulating plate also used as an iron core assembly workbench is a wound iron core transformer having a U-shape in which the comb teeth are inserted into the holes of the two coils. 請求項１に記載の巻鉄心変圧器において、
前記鉄心組立作業台兼用絶縁板の前記くし歯部の先端に、丸みを持たせたことを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
A wound iron core transformer characterized in that the tip of the comb tooth portion of the insulating plate also used as an iron core assembly workbench is rounded. 請求項１に記載の巻鉄心変圧器において、
前記鉄心組立作業台兼用絶縁板の前記くし歯部の先端に、テーパー部を有していることを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
A wound iron core transformer characterized by having a tapered portion at the tip of the comb tooth portion of the insulating plate also used as an iron core assembly workbench. 請求項１に記載の巻鉄心変圧器において、
前記鉄心組立作業台兼用絶縁板は、根本部分において厚みが大きく、くし歯部の先端に向かうにつれて次第に厚みが小さくなることを特徴とする巻鉄心変圧器。 In the winding iron core transformer according to claim 1,
The insulating plate also used as an iron core assembly workbench is a wound iron core transformer characterized in that the thickness is large at the root portion and the thickness gradually decreases toward the tip of the comb tooth portion. 巻鉄心と、該巻鉄心の複数の脚部に配置したコイルを有する巻鉄心変圧器の組立方法であって、
作業台上に、複数のコイルを並べて配置するステップと、
複数のくし歯部と、前記複数のくし歯部の一端を連結する接続部とを有する鉄心組立作業台兼用絶縁板の前記くし歯部を、それぞれ前記複数のコイルの穴部に挿入するステップと、
前記鉄心組立作業台兼用絶縁板を作業台として、前記巻鉄心を前記コイルの穴部に挿入して巻鉄心を形成するステップと、
を備える巻鉄心変圧器の組立方法。 A method for assembling a wound iron core transformer having a wound iron core and coils arranged on a plurality of legs of the wound iron core.
Steps to arrange multiple coils side by side on the workbench,
A step of inserting the comb tooth portion of the insulating plate also used as an iron core assembly workbench having a plurality of comb tooth portions and a connecting portion connecting one ends of the plurality of comb tooth portions into the holes of the plurality of coils. ,
Using the insulating plate that also serves as an iron core assembly workbench as a workbench, the step of inserting the wound iron core into the hole of the coil to form the wound iron core.
How to assemble a wound iron core transformer. 請求項９に記載の巻鉄心変圧器の組立方法において、更に、
巻鉄心の組立作業後、作業台と変圧器を一体とし、吊り具により起立させるステップを備える巻鉄心変圧器の組立方法。 In the method for assembling a wound iron core transformer according to claim 9, further
A method of assembling a winding iron core transformer, which includes a step of integrating the workbench and the transformer with a hanging tool after assembling the winding iron core. 請求項９に記載の巻鉄心変圧器の組立方法において、
巻鉄心変圧器は、巻鉄心と複数のコイルに分解して搬入し、現地で組み立てるものである巻鉄心変圧器の組立方法。 In the method for assembling a wound iron core transformer according to claim 9,
A winding core transformer is a method of assembling a winding core transformer that is disassembled into a winding core and multiple coils, carried in, and assembled locally. 第一の内鉄心と、前記第一の内鉄心に並べられた第二の内鉄心と、前記第一の内鉄心と前記第二の内鉄心とを覆うように配置された外鉄心と、
前記第一の内鉄心と前記外鉄心に巻回された第一のコイルと、前記第一の内鉄心と前記第二の内鉄心に巻回された第二のコイルと、前記第二の内鉄心と前記外鉄心に巻回された第三のコイルと、を有する変圧器であって、
前記第一のコイルの内側と前記第一の内鉄心及び前記外鉄心との間に該第第一のコイルの高さよりも長い第一の板状部材が配置され、
前記第二のコイルの内側と前記第一の内鉄心及び前記第二の内鉄心との間に該第第二のコイルの高さよりも長い第二の板状部材が配置され、
前記第三のコイルの内側と前記第二の内鉄心及び前記外鉄心との間に該第第三のコイルの高さよりも長い第三の板状部材が配置され、
前記第一の板状部材と前記第二の板状部材が前記第一のコイルより低いまたは高い位置で接続される第一の接続部を有し、
前記第二の板状部材と前記第三の板状部材が前記第二のコイルより低いまたは高い位置で接続される第二の接続部を有すること
を特徴とする変圧器。 A first inner core, a second inner core arranged on the first inner core, and an outer core arranged so as to cover the first inner core and the second inner core.
The first inner core, the first coil wound around the outer core, the second coil wound around the first inner core and the second inner core, and the second inner core. A transformer having an iron core and a third coil wound around the outer iron core.
A first plate-like member longer than the height of the first coil is arranged between the inside of the first coil and the first inner core and the outer core.
A second plate-like member longer than the height of the second coil is arranged between the inside of the second coil and the first inner core and the second inner core.
A third plate-like member longer than the height of the third coil is arranged between the inside of the third coil and the second inner core and the outer core.
The first plate-shaped member and the second plate-shaped member have a first connecting portion which is connected at a position lower or higher than that of the first coil.
A transformer characterized by having a second connecting portion in which the second plate-shaped member and the third plate-shaped member are connected at a position lower or higher than that of the second coil. 請求項１２に記載の変圧器において、
前記第一の板状部材、前記第二の板状部材、前記第三の板状部材、前記第一の接続部及び前記第二の接続部は変圧器の正面側に配置されていることを特徴とする変圧器。 In the transformer according to claim 12,
The first plate-shaped member, the second plate-shaped member, the third plate-shaped member, the first connecting portion, and the second connecting portion are arranged on the front side of the transformer. A featured transformer. 請求項１２に記載の変圧器において、
前記第一の板状部材、前記第二の板状部材および前記第三の板状部材のうち前記第一の接続部または前記第二の接続部が接続されていない端面は開放端であることを特徴とする変圧器。 In the transformer according to claim 12,
Of the first plate-shaped member, the second plate-shaped member, and the third plate-shaped member, the end face to which the first connecting portion or the second connecting portion is not connected is an open end. A transformer that features. 請求項１２に記載の変圧器において、
前記第一の板状部材、前記第二の板状部材、前記第三の板状部材、前記第一の接続部及び前記第二の接続部がそれぞれ接続される形状はＥ字形状であることを特徴とする変圧器。 In the transformer according to claim 12,
The shape in which the first plate-shaped member, the second plate-shaped member, the third plate-shaped member, the first connecting portion, and the second connecting portion are connected is an E-shape. A transformer that features.
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JPH0424910A (en) * 1990-05-15 1992-01-28 Daihen Corp Coil mounting to wound core
JPH0492409A (en) * 1990-08-08 1992-03-25 Daihen Corp Method of fitting winding to iron core and winding fitting jigs used in the method
JPH05190342A (en) * 1992-01-13 1993-07-30 Daihen Corp Wound-core transformer and its manufacture
JPH06132150A (en) * 1992-10-22 1994-05-13 Toshiba Corp Method of assembling transformer and assembling device
JPH0729759A (en) * 1993-06-25 1995-01-31 Toshiba Corp Method and device for assembling stationary induction electric apparatus
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6427214A (en) * 1988-06-28 1989-01-30 Toshiba Corp Transformer
JPH02239607A (en) * 1989-02-01 1990-09-21 Westinghouse Electric Corp <We> Manufacture of transformer which has wound core made of amorphous metal
JPH0424910A (en) * 1990-05-15 1992-01-28 Daihen Corp Coil mounting to wound core
JPH0492409A (en) * 1990-08-08 1992-03-25 Daihen Corp Method of fitting winding to iron core and winding fitting jigs used in the method
JPH05190342A (en) * 1992-01-13 1993-07-30 Daihen Corp Wound-core transformer and its manufacture
JPH06132150A (en) * 1992-10-22 1994-05-13 Toshiba Corp Method of assembling transformer and assembling device
JPH0729759A (en) * 1993-06-25 1995-01-31 Toshiba Corp Method and device for assembling stationary induction electric apparatus
JPH09129464A (en) * 1995-10-27 1997-05-16 Aichi Electric Co Ltd Method and apparatus for assemblage of three-phase winding core
JPH09153417A (en) * 1995-11-29 1997-06-10 Aichi Electric Co Ltd Wound core transformer and manufacture thereof
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US20020158744A1 (en) * 2001-04-25 2002-10-31 Ngo Dung A. Apparatus and method for the manufacture of large transformers having laminated cores, particularly cores of annealed amorphous metal alloys
CN106847480A (en) * 2017-01-04 2017-06-13 江苏明德广济电气有限公司 A kind of amorphous alloy transformer

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