JPS6298706A - Iron core for static induction machine - Google Patents

Iron core for static induction machine

Info

Publication number
JPS6298706A
JPS6298706A JP24007185A JP24007185A JPS6298706A JP S6298706 A JPS6298706 A JP S6298706A JP 24007185 A JP24007185 A JP 24007185A JP 24007185 A JP24007185 A JP 24007185A JP S6298706 A JPS6298706 A JP S6298706A
Authority
JP
Japan
Prior art keywords
leg
circular arc
notch
iron core
yoke
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
Application number
JP24007185A
Other languages
Japanese (ja)
Inventor
Osamu Tokumasu
徳増 治
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP24007185A priority Critical patent/JPS6298706A/en
Publication of JPS6298706A publication Critical patent/JPS6298706A/en
Pending legal-status Critical Current

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  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To suppress the generation of a bending at the top of a notched part as well as to obtain the iron core for a static induction machine having no cutting burn by a method wherein both corners of the notched part and the protruded part a T-junction part are formed into a circular arc. CONSTITUTION:Both edges of the notched part 1A of a leg part 1 and the protruded part 3A of a yoke part 3 are formed into a circular arc shape 9. To be precise, the radius R of the circular arc part 9 is set at 2<1/2>.l so that the contact point of the circular arc part 9 and a linear part 4 is positioned at the point of intersection 10 of the center line C1 in the width direction of the yoke part 3. Also, as the center point O1 of the circular arc part 9 is positioned at (l) from the center line C1 and 2l from the center line C2 in width direction of the leg part 1, the notched depth of the leg 1 can be made shallower than that of the device heretofore in use. As a result, the generation of bending at the point in the vicinity of the top of the notch 1A can be suppressed, both edges of the protruded part can be formed in circular arc shape, and as a result, the generation of cutting burn can be prevented, and the safety can also be maintained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は静止誘導機器の鉄心、特にそので接合部にお
ける形状の改良に閃するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is directed to improving the shape of the iron core of stationary induction equipment, particularly at the joints thereof.

〔従来の技術〕[Conventional technology]

第5図は外鉄形変王器の一役的な構成を示す斜視図であ
り、図において(a) 、 (b)および(C)はコイ
ル、(10)はコイル窓、(100)および(200)
は鉄心である。第6図は第5図に示した鉄心(10■。
Fig. 5 is a perspective view showing the important structure of the outer iron type transformation device, in which (a), (b) and (C) are coils, (10) is a coil window, (100) and ( 200)
is an iron core. Figure 6 shows the iron core (10cm) shown in Figure 5.

(200)の片1則(100)だけを示す平面図であっ
て、この鉄心(100)は脚部(1)と2踵煩  ゛の
継鉄部(2)および(3)からり成され、各脚部(1)
および、味鉄部(2) 、 (3)はそれぞれ磁気時1
生の等しい方向性ケイ素A板から形成されている。
(200) is a plan view showing only one piece of law (100), and this iron core (100) is made up of a leg part (1) and two yoke parts (2) and (3). , each leg (1)
And, the taste iron parts (2) and (3) are 1 when magnetic, respectively.
It is formed from a raw uniformly oriented silicon A plate.

従来の鉄心は第6図に実線で示す形状の鉄心素板を一つ
の栄位として、これを多数4作し、一単位町に表裏を反
転して(第6図の点線は反転した状態の各鉄心素板を示
す)、隣接する各単位毎に接合部における各鉄心素板の
当接部か重なり合わないようにして、第5図に示す一点
鎖線の位置までPI3層していた。
Conventional iron cores have a core blank with the shape shown by the solid line in Figure 6 as one honor, and a large number of 4 of these are made, and each unit is made with the front and back sides reversed (the dotted line in Figure 6 shows the shape of the core in the reversed state). (each core blank is shown), three layers of PI were applied to each adjacent unit up to the position indicated by the dashed-dotted line in FIG. 5, so that the abutting portions of the core blanks at the joints did not overlap.

すなわち、脚部(1)と継鉄部(3)とか交わるT接合
部では・脚部(1)と継鉄部(3)とは方向性ケイ素鋼
板の磁気特性の異方性を考慮して45°の角度で当接接
合するように、脚部(1)に形成された山形切込部(I
A)の各直線部(4)および(5)か脚部鉄心素板の圧
延方向(長手方向)に対してなす角度(Ul)および(
θ2)が共に45°とされ、かつ前記山形切込部(IA
)の頂点(6)か鉄心幅(W)の50%の深さに位置す
るようにされると共に、継鉄部(3)の端部突出部(3
A)はその先端がそのIL’M (W)の中央より切欠
き長さくl)だけずれた状態で各辺は、それぞれ鉄心素
板の圧延方向(長手方向)に対して45°の山形に形成
されて前記脚部(1)の山形切込部(IA)に当接され
ている。
In other words, at the T-junction where the leg (1) and the yoke (3) intersect, the leg (1) and the yoke (3) are made in consideration of the anisotropy of the magnetic properties of grain-oriented silicon steel sheets. A chevron-shaped notch (I
The angle (Ul) and (
θ2) are both 45°, and the angle-shaped notch (IA
) is located at a depth of 50% of the core width (W), and the end protrusion (3) of the yoke (3)
A) has its tip shifted from the center of its IL'M (W) by the notch length l), and each side is shaped like a chevron at an angle of 45° with respect to the rolling direction (longitudinal direction) of the core blank. It is formed and abuts on the chevron-shaped notch (IA) of the leg (1).

また、第6図に実線と点線で示すように各層毎に鉄心を
反転して積層することにより、T接合部の内隅には切欠
き長さくii)の切欠き(7)と(8)が生ずる。
In addition, by stacking the iron cores inverted for each layer as shown by solid lines and dotted lines in Fig. 6, notches (7) and (8) with a length of notch ii) are formed at the inner corner of the T-junction. occurs.

〔発明か解決しようとする問題点〕[The problem that the invention attempts to solve]

上記のような従来の鉄心形状では、脚部(1)の切込部
(IA)の深さか鉄心@1t(W)の半分になっており
、切断加工、運搬および鉄心積工程において切込部(I
A)の頂点(6)で鉄心の折れ曲がりが発生しやすいた
め慎重に取扱わなければならず1折れ曲がった鉄心素板
は使用できないという問題点があった。
In the conventional core shape as described above, the depth of the notch (IA) of the leg (1) is half the depth of the core @1t (W), and the depth of the notch (IA) in the leg (1) is half of that of the core @1t (W). (I
Since the iron core is likely to bend at the apex (6) of A), it must be handled with care, and there is a problem in that an iron core blank with one bend cannot be used.

また、脚部(1)の山形切込部(IA)および継鉄部(
3)の山形突出部(3A)はダイセットによりそれぞれ
1工程で切断するので、その際切断力エリを生じさせな
いようにするため鉄心の板厚に応じてダイセットの刃の
クリアランス調整を慎重に行なわれなければならないか
、頂点(6)はクリアランス調整が実際上不可能である
ため頂点(6)において大きな切断力エリを生じて積層
鉄心の平坦度が悪くなり、鉄損が大きくなるという問題
点があった。
In addition, the chevron notch (IA) of the leg (1) and the yoke part (
The chevron-shaped protrusions (3A) in 3) are each cut in one process using a die set, so in order to avoid cutting force deviation, carefully adjust the clearance of the die set blade according to the thickness of the iron core. Since it is practically impossible to adjust the clearance at the apex (6), a large cutting force is generated at the apex (6), which deteriorates the flatness of the laminated core and increases iron loss. There was a point.

この発明はかかる問題点を解決するためになされたもの
で゛、切込部の頂点での折れ曲がりを起こさせにくくす
ると共に切断力エリを生じさせない静止誘導機器の鉄心
を得ることを目的とする。
The present invention has been made to solve these problems, and its object is to provide an iron core for stationary guidance equipment that is less prone to bending at the apex of the notch and does not cause cutting force error.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る静止誘導機器の鉄心は・T接合部におけ
る切込部と突出部との両角をそれぞれ円弧状に形成した
ものである。
In the iron core of the stationary induction device according to the present invention, both corners of the notch and the protrusion in the T-junction are each formed into an arc shape.

〔作用〕[Effect]

この発明においては・脚部の切り込み深さが浅くなるの
で切込部の頂点付近での折れ曲がりか生じにくくなると
共に、継鉄部の突出部および脚部の切込部の切断線か円
弧状となるので切断力エリが生じない。
In this invention, the cut depth of the leg is shallow, so bending near the top of the cut is less likely to occur, and the cutting line of the protrusion of the yoke and the cut of the leg is shaped like an arc. As a result, cutting force error does not occur.

〔発明の実施例〕[Embodiments of the invention]

第1図はこの発明の一実施例を示すもので、脚部(1)
の切込部(IA)と継鉄部(3)の突出部(3A)との
両角をそれぞれ当接する円弧状(9)に形成した以外は
、上記従来装置と全く同じである。
FIG. 1 shows an embodiment of the present invention, in which the leg (1)
This is exactly the same as the conventional device described above, except that both corners of the notch (IA) and the protrusion (3A) of the yoke (3) are formed into arc shapes (9) that abut each other.

この実施例では、円弧部(9)と直線部(4)との接す
る点か継鉄部(3)の幅方向の中心線(0□)との交点
(10)に位置するように円弧部(9)の半径(R1)
を(z 、H)としたものであり、また円弧部(9)の
中心点(01)が中心線(Of)より(r)および脚部
(1)の幅方向の中心線(C2)より(21)の位置に
あるので・脚部(1)の切り込み深さは従来のものより
B1=iC2−5)だけ浅くなる。
In this embodiment, the arc part is positioned so that the point where the arc part (9) and the straight part (4) touch or the intersection point (10) with the center line (0□) in the width direction of the yoke part (3) is (9) radius (R1)
is (z, H), and the center point (01) of the circular arc part (9) is from the center line (Of) to (r) and from the center line in the width direction of the leg part (1) (C2). Since it is at the position (21), the cutting depth of the leg (1) is shallower by B1=iC2-5) than the conventional one.

なお、継鉄部(3)を切断加工する場合の1枚当たりの
切断長さすなわち切断ピッチ(Pl)は、中心M(01
)上の継鉄部(3)の両端部との交点間の長さくA+W
−21)となる。また、第1図中の一点鎖線は従来のも
のを示し、(蜀はコイル窓寸法を示す。
In addition, when cutting the yoke part (3), the cutting length per piece, that is, the cutting pitch (Pl) is set at the center M (01
) Length between the intersections with both ends of the yoke part (3) A+W
-21). In addition, the dashed dotted line in FIG. 1 indicates the conventional one, and 蜀 indicates the coil window dimensions.

このように脚部(1)の切込部(IA)と継鉄部(3)
の突出部〔3A〕との両角にそれぞれ当接する円弧部(
9)を設けておくと、脚部(1)の切り込み深さが浅く
なるので切込部(IA)の頂点付近での折れ曲がりか生
じにく(なると共に両角が円弧状となるため切断力エリ
が生じないし、安全となる。
In this way, the notch part (IA) of the leg part (1) and the yoke part (3)
The circular arc portion (
9), the cutting depth of the leg part (1) becomes shallow, so bending near the apex of the cutting part (IA) is less likely to occur (and since both corners are arcuate, the cutting force area is reduced). will not occur and will be safe.

第1図に示した実施例において円弧状(9)の半径(R
+)を大きくすれはするほど継鉄部(3)の切断ピッチ
(P、)が短くなり、継鉄部(3)の必要な調帯量を減
らすことが可能であるか、従来のものより鉄損を増加さ
せないことを条件にすれは、実験的にみて円弧状(9)
の最大半径(R2)は(31σ)である。この場合を第
2図に基づいて説明する。   ” 第2図の実施例では、脚部(1)の切込部(IA)と継
鉄部(3)の突出部(3A)との両角をそれぞれ当接す
る円弧状(11)に形成したものであり、この円弧部(
11)の中心点(02)が中心線(CI)より(J)お
よび中心線(C2)より(61)の位置にあって、半径
(R1)が(31J’T)であるので、脚部(1)の切
り込み深さは従来のものよりBz=31 (2−1膨−
)だけ浅くなる。さらに、切断ピッチ(P2)は(pt
  P+ = 1.754 ’ )だけ短くなり、その
分鋼帯電を減らすことができる。
In the embodiment shown in FIG. 1, the radius (R
The larger the +) is, the shorter the cutting pitch (P, ) of the yoke part (3) becomes.Is it possible to reduce the necessary adjustment amount of the yoke part (3) compared to the conventional one? Experimentally, provided that iron loss does not increase, the arc shape (9)
The maximum radius (R2) of is (31σ). This case will be explained based on FIG. In the embodiment shown in Fig. 2, both corners of the notch (IA) of the leg (1) and the protrusion (3A) of the yoke (3) are formed into arc shapes (11) that abut each other. , and this arc part (
The center point (02) of 11) is located at (J) from the center line (CI) and (61) from the center line (C2), and the radius (R1) is (31J'T), so the leg The cutting depth of (1) is Bz = 31 (2-1 expansion) compared to the conventional one.
) becomes shallower. Furthermore, the cutting pitch (P2) is (pt
P+ = 1.754'), and steel charging can be reduced by that much.

第3図はこの発明の他の実施例を示すもので、片側の直
線部(5a)がT接合部の内隅で交わるようになってい
る以外は、第1の実施例と同じである。
FIG. 3 shows another embodiment of the invention, which is the same as the first embodiment except that the straight portions (5a) on one side intersect at the inner corners of the T-junction.

この実施例では・円弧部(12)の中心点(0,)が中
心線(C1)より(1/2 )および中心線(賄)より
(1,5j’)の位置にあって・半径(R3)が(lσ
/2)であるので・脚部(1)の切り込み深さは従来の
ものよりB3= z(3−JT )/2だけ浅くなる。
In this example, the center point (0,) of the circular arc portion (12) is located at (1/2) from the center line (C1) and (1,5j') from the center line. R3) is (lσ
/2), so the cutting depth of the leg (1) is shallower than the conventional one by B3=z(3-JT)/2.

第3図に示した実施例における円弧状(12)の最大半
径(R4)は(31σ)である。この場合を第4図に基
ついて説明する。
The maximum radius (R4) of the arc shape (12) in the embodiment shown in FIG. 3 is (31σ). This case will be explained with reference to FIG.

第4図の実施例では、円弧部(13)の中心点(04)
が中心線(C1)より(1/2 )および中心線(C2
)より(6,51”)の位置にあって、半径(R4)が
(31σ)であるので、脚部(1)の切り込み深さは従
来のものよりB、= l (6,5−3(Z)だけ浅く
なる。さらに、切断ピッチ(P3)は(Ps  pt=
2.s 741 )たけ短くなり、その分鋼帯電を減ら
すことができる。
In the embodiment of FIG. 4, the center point (04) of the circular arc portion (13)
(1/2) from the center line (C1) and from the center line (C2)
), and the radius (R4) is (31σ), so the cutting depth of the leg (1) is B, = l (6,5-3 (Z).Furthermore, the cutting pitch (P3) is (Ps pt=
2. s 741), and the steel electrification can be reduced accordingly.

ところで上記説明では、外鉄形変圧器のT接合部に利用
する場合について述べたが、内鉄形変圧器のT接合部に
も利用できることはいうまでもない。
Incidentally, in the above description, the case where the present invention is used for the T-junction of an external iron type transformer has been described, but it goes without saying that it can also be used for the T-junction of an internal iron type transformer.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおり、T接合部における切込
部および突出部の両角を円弧状に形成することにより、
脚部の切り込み深さが浅くなって切込部頂点付近での切
断加工、運搬および鉄心積工程における折れ曲がりが生
じにくくなると共に、また切断線が比較的大きな円弧状
となるためグイセットの刃のクリアランス調整が容易と
なり、切断力エリを無くすることができるという効果が
ある。
As explained above, this invention has both corners of the notch and the protrusion in the T-joint section formed in an arc shape.
The cutting depth of the legs is shallower, making it difficult for bending to occur near the apex of the cutting part during cutting, transportation, and core stacking processes.Also, the cutting line has a relatively large arc shape, which reduces the clearance of the guiset blade. This has the effect of making adjustment easier and eliminating cutting force error.

この効果は薄板化の傾向か強くなっている今日において
は非常に大きいものがあり、さらに、T接合部に当接さ
れる継鉄部の突出部の先端が丸いことにより取扱い上安
全になるという効果かある。
This effect is extremely significant in today's world where there is a strong trend toward thinner plates.Furthermore, the rounded tip of the protruding part of the yoke that comes into contact with the T-junction makes it safer to handle. It's effective.

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

第1図はこの発明の一実施例でT接合部を拡大して示す
平面図、第2図は第1図の変形例を示す図、第3図はこ
の発明の他の実施例でT接合部を拡大して示す平面図、
第4図は第3図の変形例を示す図、第5図は従来の外鉄
形変圧器の一般的な構成を示す斜視図、第6図は第5図
の鉄心を示す平面図である。 図において、(1)は脚部、(IA)は切込部、(3)
は継鉄部、(3A)は突出部・(7)、(8)は切欠き
・(9) 、 (11) 、 (12) 、 (13)
は円弧状である。 なお・各図中同一符号は同一または相当部分を示す。 代理人 弁理士  大  岩  増  雄手続補正書(
自発) 昭和  年  月  日 2、発明の名称 静止誘導機器の鉄心 、3 補正をする者 事件との関係  特許出願人 住 所    東京都千代田区丸の内二丁目2番3号名
 称  (60])三菱電機株式会社代表者     
    部 4、代1里7、   志岐守・□・( 住 所    東京都千代田区丸の内二丁目2番3号5
、補正の対象 明細書の発明の詳細な説明の欄 ら補正の内容 ]細書第4頁第12行の「慎重に行なわれなけ1.ばな
らないが」を「慎重に行わなければならないが」に訂正
する。 (2)同第7頁第15行の「(Pt  P+= 1.7
547)Jをr(pl Px=1.754t)Jに訂正
する。 (3)同第8頁第16行の「(P3  P1= 2.5
74t)jを「(Pt  P3=2.574t)Jに訂
正する。 以  上
FIG. 1 is an enlarged plan view of a T-junction in one embodiment of the invention, FIG. 2 is a modification of FIG. 1, and FIG. 3 is a T-junction in another embodiment of the invention. A plan view showing an enlarged portion of the part;
Fig. 4 is a diagram showing a modification of Fig. 3, Fig. 5 is a perspective view showing the general configuration of a conventional external iron type transformer, and Fig. 6 is a plan view showing the iron core of Fig. 5. . In the figure, (1) is the leg, (IA) is the notch, (3)
is the yoke, (3A) is the protrusion, (7), (8) are the notches, (9), (11), (12), (13)
is arc-shaped. Note that the same reference numerals in each figure indicate the same or equivalent parts. Agent: Patent Attorney Masuo Oiwa Procedural Amendment (
Spontaneous) Showa, Month, Day 2, Title of the invention: Iron core for stationary induction equipment, 3. Relationship to the case of the person making the amendment Patent applicant address: 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (60]) Mitsubishi Electric Co., Ltd. Representative
Department 4, Yo1ri 7, Shiki no Mamoru □ (Address: 2-2-3-5 Marunouchi, Chiyoda-ku, Tokyo)
, Contents of the amendment from the Detailed Description of the Invention column of the specification to be amended] In the 4th page, line 12 of the specification, "It shall be done with care 1." has been changed to "It must be done with care." correct. (2) "(Pt P+= 1.7" on page 7, line 15)
547) Correct J to r(pl Px=1.754t)J. (3) "(P3 P1= 2.5" on page 8, line 16)
74t)j to "(Pt P3=2.574t)J."

Claims (3)

【特許請求の範囲】[Claims] (1)一方の鉄心素板の側部に45°の角度で切り込ま
れた切込部を有しかつ他方の鉄心素板の端部に45°の
角度で突出する突出部を有し、この突出部を前記切込部
に当接してT字形鉄心を構成するようにしたものにおい
て、前記切込部および前記突出部の両角をそれぞれ円弧
状に形成したことを特徴とする静止誘導機器の鉄心。
(1) having a notch cut into the side of one core blank at an angle of 45°, and having a protruding part protruding at an angle of 45° from the end of the other core blank; A stationary induction device characterized in that the protruding portion contacts the notch to form a T-shaped core, wherein both corners of the notch and the protruding portion are each formed into an arc shape. Iron core.
(2)T字形当接部における内隅部の切欠きが2箇所に
なるようにされたものにおいて、円弧状の最大半径を(
3×√2×切欠き深さ)とした特許請求の範囲第1項記
載の静止誘導機器の鉄心。
(2) In a T-shaped abutting part with two notches at the inner corner, the maximum radius of the arc is (
3×√2×notch depth) The iron core for a stationary induction device according to claim 1.
(3)T字形当接部における内隅部の切欠きが1箇所に
なるようにされたものにおいて、円弧状の最大半径を(
3×√2×切欠き深さ)とした特許請求の範囲第1項記
載の静止誘導機器の鉄心。
(3) In a T-shaped abutting part with one notch at the inner corner, the maximum radius of the arc is (
3×√2×notch depth) The iron core for a stationary induction device according to claim 1.
JP24007185A 1985-10-25 1985-10-25 Iron core for static induction machine Pending JPS6298706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24007185A JPS6298706A (en) 1985-10-25 1985-10-25 Iron core for static induction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24007185A JPS6298706A (en) 1985-10-25 1985-10-25 Iron core for static induction machine

Publications (1)

Publication Number Publication Date
JPS6298706A true JPS6298706A (en) 1987-05-08

Family

ID=17054056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24007185A Pending JPS6298706A (en) 1985-10-25 1985-10-25 Iron core for static induction machine

Country Status (1)

Country Link
JP (1) JPS6298706A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005541A (en) * 1989-08-02 1991-04-09 Otai Tekko Kabushiki Kaisha And Koyo Seiko Co., Ltd. Hydraulic valve lifter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005541A (en) * 1989-08-02 1991-04-09 Otai Tekko Kabushiki Kaisha And Koyo Seiko Co., Ltd. Hydraulic valve lifter

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