JPS58194321A - Magnetic core of transformer or choke coil and preparation thereof - Google Patents

Magnetic core of transformer or choke coil and preparation thereof

Info

Publication number
JPS58194321A
JPS58194321A JP7769282A JP7769282A JPS58194321A JP S58194321 A JPS58194321 A JP S58194321A JP 7769282 A JP7769282 A JP 7769282A JP 7769282 A JP7769282 A JP 7769282A JP S58194321 A JPS58194321 A JP S58194321A
Authority
JP
Japan
Prior art keywords
steel plate
spiral
magnetic core
steel belt
wound
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
JP7769282A
Other languages
Japanese (ja)
Inventor
Jotaro Kishi
岸　条太郎
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.)
HOKKAI BANE KK
Original Assignee
HOKKAI BANE KK
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 HOKKAI BANE KK filed Critical HOKKAI BANE KK
Priority to JP7769282A priority Critical patent/JPS58194321A/en
Publication of JPS58194321A publication Critical patent/JPS58194321A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

PURPOSE:To obtain the magnetic core which can be manufactured easily with high application efficiency of steel plate and high electrical characteristics by spirally winding a steel belt after punching a steel plate in the desired thickness into a steel belt and pressurizingly laminating the steel belt in the winding direction. CONSTITUTION:The waved part 2 which forms the circumferential part is formed uniformly and repeatedly per the length l corresponding to a single turn in the next process at the single side A of the steel belt 1 punched from a steel plate of the desired thickness. While with the other side B of the steel belt 1 faced inside, the steel belt is wound spirally by the spiral technique based on the continuous cold rolling process. The end part of spiral steel plate 4 forms an annular body of almost square shape, allowing the cut-away parts 3, 3 of the wound groove to be located opposingly. Then, after cutting the spiral steel plate 4 into the desired length, the steel plate is pressurizingly pressed from both ends of spiral part and is welded along the welding groove 5 formed by the welded recess part 5a formed at a part of the circumference while the spiral parts are closed in contact in the axial direction. Thereby a magnetic core 6 can be formed. The cut-away part 3 of wound groove forms a wound groove 7 of coil continuously in the axial direction.

Description

【発明の詳細な説明】 本発明はトランス又はチョークコイル等の磁芯と該磁芯
の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic core such as a transformer or a choke coil, and a method for manufacturing the magnetic core.

従来、トランスやチョークコイル等に用いられる磁芯は
第１図に示すように鋼板から打抜（・た打抜板ａを多数
重ね合わせて構成している為、鋼板のスクラップ量が多
く、省資源化に逆行するものであった。Conventionally, magnetic cores used in transformers, choke coils, etc. are made by punching out steel plates (as shown in Figure 1) and stacking a large number of punched plates a on top of each other, resulting in a large amount of steel plate scrap. This went against the idea of recycling.

本発明は上記問題に鑑み、製造が簡単であると同時に鋼
板の利用率が高く且つ電気的特性に優れたトランス又は
チョークコイル等の磁芯の製造方法を提唱し、且つその
磁芯を提供することを目的とするものである。In view of the above-mentioned problems, the present invention proposes a method for manufacturing a magnetic core for a transformer or choke coil, etc., which is easy to manufacture, has a high utilization rate of steel plates, and has excellent electrical characteristics, and also provides the magnetic core. The purpose is to

即ち本発明のトランス又はチョークコイル等の磁芯は適
宜厚さの鋼板を帯状に打抜いた後、該帯状鋼板を連続冷
間圧延によって密なスパイラル状に螺回すると共に該ス
パイラル状鋼板を適当な長さに切断し、巻重ね方向に圧
接固着して成るものである− 以下、本発明の一実施例を図面に従って説明するに、第
２図乃至第４図は本発明の製造工程を示すものである。That is, the magnetic core of the transformer or choke coil of the present invention is produced by punching a steel plate of an appropriate thickness into a strip shape, and then rolling the strip steel plate into a dense spiral shape by continuous cold rolling. An embodiment of the present invention will be described below with reference to the drawings. Figures 2 to 4 show the manufacturing process of the present invention. It is something.

１、　ｉ　２図において１は適宜厚さの鋼板から打抜い
た帯状鋼板であり、帯状体のｍ個Ａには外周部を形成す
る波形の凹凸２が次工程の１螺同に相当する長さｌ当り
均等に繰り返し形成される。1, i 2 In Fig. 1, 1 is a strip-shaped steel plate punched from a steel plate of an appropriate thickness, and the m pieces A of the strip-shaped body have corrugated irregularities 2 forming the outer periphery with a length corresponding to one screw thread in the next process. It is formed repeatedly evenly per liter.

又他側Ｂには巻溝切欠ろが次工程の１螺回に相当する長
さｌ当り２個均等配設されるものである。On the other side B, two winding groove cutouts are equally arranged per length l corresponding to one spiral turn in the next step.

■０次に第６図は前記帯状鋼板１０Ｂ側を内側にして公
知（例えば特公昭５４−２１８９号参照）の帯材の連続
冷間圧延に依るスノくイラル製造技術に依り、スパイラ
ル状に螺回したもので、該スパイラル状鋼板４の端面ば
前記帯状鋼板１の形状により、略正方形の環状体を成し
、巻溝切欠口２口が対向位置するように成る。■0Next, Fig. 6 shows the strip steel plate 10B being turned inside using the well-known (for example, Japanese Patent Publication No. 54-2189) manufacturing technology that involves continuous cold rolling of a strip material in a spiral shape. By turning the spiral steel plate 4, the end surface of the spiral steel plate 4 forms a substantially square annular body due to the shape of the band-shaped steel plate 1, and the two winding groove notches are located opposite to each other.

■０次に上記スパイラル状鋼板４を所望長さに切断した
後、第４図に示すようにスノ（イラルの両端かう加圧プ
レスし、スパイラルを軸方向に密接した状態で外周の一
部に形成した溶接凹部５ａに依って構成される溶接溝５
に沿って溶接固着し、磁芯６を構成するもので、上記巻
溝切欠３は軸方向に連続シてコイルの巻溝７を形成する
。■0Next, after cutting the spiral steel plate 4 to a desired length, as shown in Fig. Welding groove 5 configured by formed welding recess 5a
The winding groove notch 3 is continuous in the axial direction to form the winding groove 7 of the coil.

本発明のトランス又はチョークコイル等の磁芯６は上述
したような方法で構成されるものでその断面形状が巻き
重ね状に成る為、鋼板を軸方向に重ねた打ち抜き式の磁
芯と同様の磁性体特性を有するように成る。The magnetic core 6 of the transformer or choke coil, etc. of the present invention is constructed by the method described above, and its cross-sectional shape is in the form of an overlapping winding. It comes to have magnetic properties.

また本発明は鋼板から帯状に打ち抜いた帯状体を巻き重
ねして構成するものであるから鋼板の利用効率が高く且
つ簡単に構成することができる特徴を有し、本発明実施
後の実用的効果は極めて太きい。In addition, since the present invention is constructed by winding and overlapping belt-shaped bodies punched out from steel plates, it has the characteristics of high utilization efficiency of steel plates and easy construction, and practical effects after implementation of the present invention. is extremely thick.

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

図面は本発明の一実施例を示すもので、第１図は従来の
磁芯を示す一部分解した斜視図、第２図は本発明の磁芯
の製造工程！を示す帯状鋼板の正面図、第６図は製造工
程■を示すスパイラル状鋼板のａ正面図及びｂ側面図、
第４図は製造工程■を示す磁芯のａ正断面図及びｂ側面
図である。 １〜帯状鋼板　　　　２〜凹　凸 ６〜巻溝切欠　　　　　　　　　　　　　　　　ｊ４〜
スパイラル状鋼板 ５〜溶接溝 ５ａ〜溶接凹部　　　　　６〜磁　芯 ７〜巻　　溝 昭和５７年５月１０日 特許出願人　　北海バネ株式会社 、ＭｉＡグ Ｊ２＃The drawings show one embodiment of the present invention; Fig. 1 is a partially exploded perspective view showing a conventional magnetic core, and Fig. 2 is a manufacturing process for the magnetic core of the present invention! FIG. 6 is a front view and b side view of a spiral steel plate showing manufacturing process (2).
FIG. 4 is a front cross-sectional view (a) and a side view (b) of the magnetic core, showing manufacturing process (2). 1 ~ Band-shaped steel plate 2 ~ Concave Convex 6 ~ Winding groove notch j4 ~
Spiral steel plate 5 - welding groove 5a - welding recess 6 - magnetic core 7 - winding groove May 10, 1981 Patent applicant: Hokkai Spring Co., Ltd., MiAg J2#

Claims (2)

【特許請求の範囲】[Claims] （１）適宜厚さの鋼板を帯状に打ち抜き帯状鋼板を形成
した後、該帯状鋼板を連続冷間圧延に依ってスパイラル
状に螺回し、面方向に螺回したスパイラル状鋼板を構成
すると共に、該スパイラル状鋼板を所望長さに切断した
後、軸方向に押圧プレスし、スパイラルを密着せしめた
状態で外周部又はその一部を密接又は接着等に依って固
着して成るトランス又はチョークコイル等の環状体磁芯
の製造方法。、(1) After punching a steel plate of an appropriate thickness into a strip shape and forming a strip steel plate, the strip steel plate is wound into a spiral shape by continuous cold rolling to form a spiral steel plate which is wound in the planar direction, and A transformer or choke coil, etc., formed by cutting the spiral steel plate to a desired length, pressing it in the axial direction, and fixing the outer periphery or a part thereof with the spirals in close contact with each other or by adhesive etc. A method for manufacturing an annular magnetic core. , （２）帯状鋼板を面方向に螺回し、軸方向に巻き重ねて
環状体を構成したことを特徴とするトランス又はチョー
クコイル等の磁芯８(2) Magnetic core 8 of a transformer or choke coil, etc., characterized by forming a ring-shaped body by winding strip-shaped steel plates in the planar direction and overlapping them in the axial direction.
JP7769282A 1982-05-10 1982-05-10 Magnetic core of transformer or choke coil and preparation thereof Pending JPS58194321A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7769282A JPS58194321A (en) 1982-05-10 1982-05-10 Magnetic core of transformer or choke coil and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7769282A JPS58194321A (en) 1982-05-10 1982-05-10 Magnetic core of transformer or choke coil and preparation thereof

Publications (1)

Publication Number Publication Date
JPS58194321A true JPS58194321A (en) 1983-11-12

Family

ID=13640938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7769282A Pending JPS58194321A (en) 1982-05-10 1982-05-10 Magnetic core of transformer or choke coil and preparation thereof

Country Status (1)

Country Link
JP (1) JPS58194321A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106205932A (en) * 2016-08-24 2016-12-07 宁波华众和创工业设计有限公司 The molybdenum perm magnetic core of a kind of high stability and manufacture method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106205932A (en) * 2016-08-24 2016-12-07 宁波华众和创工业设计有限公司 The molybdenum perm magnetic core of a kind of high stability and manufacture method thereof

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