JPH0666012U - Transformer three-phase five-leg iron core - Google Patents
Transformer three-phase five-leg iron coreInfo
- Publication number
- JPH0666012U JPH0666012U JP1128893U JP1128893U JPH0666012U JP H0666012 U JPH0666012 U JP H0666012U JP 1128893 U JP1128893 U JP 1128893U JP 1128893 U JP1128893 U JP 1128893U JP H0666012 U JPH0666012 U JP H0666012U
- Authority
- JP
- Japan
- Prior art keywords
- leg
- phase
- iron core
- blank
- silicon steel
- 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.)
- Pending
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
(57)【要約】
【目的】 方向性けい素鋼板または高配向性けい素鋼板
を使用した三相五脚鉄心の鉄損及び発生騒音を低減す
る。
【構成】 この考案は変圧器三相五脚鉄心において、上
下継鉄の主脚接合部にV字状溝を3箇所つけ、さらに両
端に側脚と接合する斜切断を施した一体構造の継鉄抜板
を積層して鉄心を構成する。
(57) [Summary] [Purpose] To reduce iron loss and noise generated in a three-phase five-leg iron core using grain-oriented silicon steel sheet or highly-oriented silicon steel sheet. [Structure] The present invention is a three-phase five-leg transformer core with an integral structure in which three V-shaped grooves are provided at the main leg joints of the upper and lower yokes, and diagonal cuts are made at both ends to join side legs. An iron core is constructed by stacking iron punched plates.
Description
【0001】[0001]
この考案は変圧器の三相五脚鉄心において、上下継鉄の抜板形状に関する。 The present invention relates to a punched shape of upper and lower yokes in a three-phase five-leg iron core of a transformer.
【0002】[0002]
従来技術による方向性けい素鋼板または高配向性けい素鋼板を使用した変圧器 の三相五脚鉄心の構造を図2(a)と(b)に基づいて説明する。 図2(a)と(b)は方向性けい素鋼板または高配向性けい素鋼板を使用した 三相五脚鉄心抜板形状及び積層時の抜板配置である。図2(a)と(b)におい て、主脚抜板4および主脚抜板5は主脚部の鉄心形状及び抜板配置を示し、継鉄 抜板6および継鉄抜板7および継鉄抜板8は上下継鉄部抜板の形状及び配置を示 す。同様に側脚抜板9は側脚の抜板形状及び配置を示したものである。三相五脚 鉄心の構造は図2(a)の抜板配置及び図2(b)の抜板配置を交互に積層し三 相五脚鉄心を構成している。 The structure of the three-phase five-leg iron core of the transformer using the grain-oriented silicon steel sheet or the highly-oriented silicon steel sheet according to the prior art will be described with reference to FIGS. 2 (a) and 2 (b). 2 (a) and 2 (b) show a three-phase five-leg core punching shape using a grain-oriented silicon steel sheet or a highly oriented silicon steel sheet and a punching arrangement at the time of stacking. 2 (a) and 2 (b), the main leg blanking plate 4 and the main leg blanking plate 5 show the iron core shape and the blanking plate arrangement of the main leg part. The iron punched plate 8 shows the shape and arrangement of the upper and lower yoke part punched plates. Similarly, the side leg blank 9 shows the shape and arrangement of the side leg blanks. The structure of the three-phase five-leg iron core is formed by alternately stacking the punching arrangement shown in Fig. 2 (a) and the punching arrangement shown in Fig. 2 (b) to form a three-phase five-leg iron core.
【0003】[0003]
方向性けい素鋼板および高配向性けい素鋼板は圧延方向に磁束を通しやすい特 性をもっている。従って鉄心の主脚および側脚と上下継鉄部の接合構造を磁束の 方向と一致させると鉄損及び発生騒音が低減できる。しかし、従来の変圧器の五 脚鉄心の構造は、主脚抜板4および主脚抜板5が継鉄抜板6および継鉄抜板7お よび継鉄抜板8に接合されており、主脚抜板5と継鉄抜板6および継鉄抜板8の 接合部と主脚抜板4と継鉄抜板8の接合部では、磁束の方向が圧延方向と直角に なる方向に接合されていることにより鉄損及び発生騒音が増加する課題があった 。そこで、この考案は、三相五脚鉄心において、鉄損及び発生騒音を減少できる ようにしたものである。 The grain-oriented silicon steel sheet and the highly-oriented silicon steel sheet have the characteristic that magnetic flux easily passes in the rolling direction. Therefore, iron loss and generated noise can be reduced by making the joint structure of the main leg and side legs of the iron core and the upper and lower yoke parts coincide with the direction of magnetic flux. However, in the structure of the conventional five-leg iron core of the transformer, the main leg blank 4 and the main leg blank 5 are joined to the yoke blank 6, the yoke blank 7, and the yoke blank 8, At the joint between the main leg blank 5, the yoke blank 6 and the yoke blank 8, and at the joint between the main leg blank 4 and the yoke blank 8, the magnetic flux is joined in a direction perpendicular to the rolling direction. Therefore, there was a problem that iron loss and generated noise would increase. Therefore, the present invention is intended to reduce iron loss and generated noise in a three-phase five-leg iron core.
【0004】[0004]
この考案は変圧器の三相五脚鉄心において、上下継鉄の主脚接合部にV字状溝 を3箇所つけ、さらに両端に側脚と接合する斜切断を施した一体構造の継鉄抜板 を積層するものである。 This invention is a three-phase five-leg iron core of a transformer, which is provided with three V-shaped grooves at the main leg joints of the upper and lower yokes, and diagonally cut at both ends to join side legs. It is a stack of plates.
【0005】[0005]
主脚と継鉄接合部での磁束の方向を方向性けい素鋼板または高配向性けい素鋼 板の圧延方向に近づけるとともに、接合箇所の数を減らすことにより鉄損及び発 生騒音を減少させることが可能である。 The magnetic flux at the main landing gear and yoke joints is made closer to the rolling direction of grain-oriented silicon steel sheet or highly oriented silicon steel sheet, and the number of joints is reduced to reduce iron loss and noise. It is possible.
【0006】[0006]
以下、この本考案の一実施例を図1(a)と(b)に基づいて説明する。図1 (a)と(b)において主脚抜板1は主脚抜板の形状を示し、主脚抜板1の上下 斜切断の頂点は抜板幅センターよりそれぞれがAだけづらして切断してある。継 鉄抜板2は継鉄抜板の形状を示し、継鉄抜板の主脚接合部3箇所にV字状溝がつ けてあり、その両端は側脚と接合する斜切断が施されている。V字状溝の形状は 主脚抜板の上下斜切断に合致する形状に切断加工されている。 三相五脚鉄心において主脚と継鉄の接合部では主脚の磁束が継鉄の両側に分流す るため、継鉄抜板幅は主脚抜板幅の1/√3程度が必要となる。側脚抜板3は側 脚の形状を示し、前記側脚抜板の幅は継鉄抜板2と同一幅である。三相五脚鉄心 の構造は材料に方向性けい素鋼板または高配向性けい素鋼板を使用して前記の主 脚抜板1および継鉄抜板2および側脚抜板3を製作し、図1(a)の抜板配置及 び図1(b)の抜板配置として、それを交互に積層して鉄心を構成するものであ る。上下継鉄の抜板形状を一体化することにより接合箇所の数を減らすことがで きる。 An embodiment of the present invention will be described below with reference to FIGS. 1 (a) and 1 (b). 1 (a) and 1 (b), the main leg blank 1 shows the shape of the main leg blank, and the top and bottom diagonal cutting vertices of the main leg blank 1 are each cut by A from the blank width center. There is. The yoke blank 2 shows the shape of the yoke blank, and there are V-shaped grooves at the three main leg joints of the yoke blank, and both ends are diagonally cut to join the side legs. ing. The shape of the V-shaped groove is cut into a shape that matches the vertical oblique cutting of the main leg blank. In the three-phase five-leg iron core, since the magnetic flux of the main leg diverts to both sides of the yoke at the joint between the main leg and the yoke, it is necessary that the width of the yoke be about 1 / √3 of the width of the main leg. Become. The side leg blank 3 shows the shape of the side leg, and the width of the side leg blank is the same as that of the yoke blank 2. The structure of the three-phase five-leg iron core is made by using the grain-oriented silicon steel plate or the highly-oriented silicon steel plate as the material to fabricate the main leg blank 1 and the yoke blank 2 and the side leg blank 3 as shown in FIG. 1 (a) and the punching arrangement of FIG. 1 (b), they are alternately laminated to form an iron core. It is possible to reduce the number of joints by integrating the punched shapes of the upper and lower yokes.
【0007】[0007]
本考案による三相五脚鉄心を使用すると次の効果がある。 (1)鉄損及び発生騒音が低減できる。 (2)抜板の種類が少ないため抜板切断の自動化が容易である。 (3)抜板の種類が少ないため積層が容易であり、作業工数が低減できる。 The use of the three-phase five-leg iron core according to the present invention has the following effects. (1) Iron loss and generated noise can be reduced. (2) Since there are few kinds of punched plates, it is easy to automate punching cutting. (3) Since there are few types of blanks, it is easy to stack and the number of work steps can be reduced.
【図1】本考案の一実施例を示す抜板配置図である。FIG. 1 is a layout plan view of an embodiment of the present invention.
【図2】従来の一例を示す抜板配置図である。FIG. 2 is a plan view showing a conventional example of a blank plate layout.
【符号の説明】 1 主脚抜板 2 継鉄抜板 3 側脚抜板 4 主脚抜板 5 主脚抜板 6 継鉄抜板 7 継鉄抜板 8 継鉄抜板 9 側脚抜板[Explanation of symbols] 1 main leg blanking 2 yoke iron blanking 3 side leg blanking 4 main leg blanking 5 main leg blanking 6 yoke iron blanking 7 yoke iron blanking 8 yoke iron blanking 9 side leg blanking
Claims (1)
鋼板を使用した変圧器の三相五脚鉄心において、上下継
鉄の主脚接合部にV字状溝を3箇所つけ、さらにその両
端に側脚と接合する斜切断を施した一体構造の継鉄抜板
を積層したことを特徴とした変圧器の三相五脚鉄心。1. In a three-phase five-leg iron core of a transformer using a grain-oriented silicon steel sheet or a highly-oriented silicon steel sheet, three V-shaped grooves are formed at the main leg joints of the upper and lower yokes, and A three-phase five-leg iron core for a transformer, which is characterized by stacking integrally constructed yoke blanks that are diagonally cut at both ends and joined to side legs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1128893U JPH0666012U (en) | 1993-02-22 | 1993-02-22 | Transformer three-phase five-leg iron core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1128893U JPH0666012U (en) | 1993-02-22 | 1993-02-22 | Transformer three-phase five-leg iron core |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0666012U true JPH0666012U (en) | 1994-09-16 |
Family
ID=11773815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1128893U Pending JPH0666012U (en) | 1993-02-22 | 1993-02-22 | Transformer three-phase five-leg iron core |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0666012U (en) |
-
1993
- 1993-02-22 JP JP1128893U patent/JPH0666012U/en active Pending
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