JPS61224840A - Manufacture of electromagnetic member - Google Patents

Manufacture of electromagnetic member

Info

Publication number
JPS61224840A
JPS61224840A JP6368685A JP6368685A JPS61224840A JP S61224840 A JPS61224840 A JP S61224840A JP 6368685 A JP6368685 A JP 6368685A JP 6368685 A JP6368685 A JP 6368685A JP S61224840 A JPS61224840 A JP S61224840A
Authority
JP
Japan
Prior art keywords
magnetic
wire
core wire
core
magnetic strips
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
JP6368685A
Other languages
Japanese (ja)
Inventor
Motoya Ito
元哉 伊藤
Noriyoshi Takahashi
高橋 典義
Noboru Fujimoto
登 藤本
Masatoshi Watabe
渡部 正敏
Takeshi Seya
瀬谷 武司
Hiroshi Kainuma
貝沼 宏
Toshiyuki Shiyudo
首藤 寿幸
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.)
Hitachi Cable Ltd
Hitachi Ltd
Original Assignee
Hitachi Cable Ltd
Hitachi Ltd
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 Hitachi Cable Ltd, Hitachi Ltd filed Critical Hitachi Cable Ltd
Priority to JP6368685A priority Critical patent/JPS61224840A/en
Publication of JPS61224840A publication Critical patent/JPS61224840A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/0054Casting in, on, or around objects which form part of the product rotors, stators for electrical motors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/26Rotor cores with slots for windings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0012Manufacturing cage rotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Induction Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To readily manufacture an electrically uniform magnetically an isotropic rotor by spirally winding a core wire in which many magnetic strips are implanted in a brush shape in one row, compressing the both ends of the core wire by a ring and casting a conductive material. CONSTITUTION:Many magnetic strips 2 are implanted to a core wire 1 in a brush shape in one row, and the strips are spirally wound on the outside (or inside). Then, a core 3 in which steel plates are laminated is inserted into a spiral central space, compressed by rings 4, 4, a bolt 5 and a nut 6, and integrated. After the integrated member is filled in a crucible, not shown, and preheated, melted copper is cast. After cooling, the nut 6, bolt 5 and rings 4 are removed, the outer periphery is cut, and the wire 1 is then removed. Thus, the stator of a double cylindrical induction motor having electrically uniform magnetically an isotropic property can be readily manufactured.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、誘導電動機の回転子などに採用される電磁部
材の製造法に係り、特に磁気異方性導電体を有する電磁
部材のその製造方法に関するものである。
[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a method for manufacturing an electromagnetic member employed in a rotor of an induction motor, and more particularly to a method for manufacturing an electromagnetic member having a magnetically anisotropic conductor. It is related to.

〔発明の背景〕[Background of the invention]

たとえば特開昭57−46656号公報にも記載されて
いるように誘導電動機の回転子を2重円筒構造とし、内
側円筒には積層鉄心を用い、外側円筒には径方向の透磁
率を周方向の透磁率より大きく形成した磁気異方性導体
を用いるものが知られている。この場合、この外側円筒
となる磁気異方性導体は、径方向に長い磁性条材、たと
えば磁性線を放射状に並べ、その間に鋼やアルミニウム
などの導電材を鋳込んで成形していた。しかしこの磁性
線の並べ方によっては透磁率が大きく変るため全体的に
均質な所定の透磁率を有子るこの種電磁部材を得ること
は難しかった。
For example, as described in JP-A-57-46656, the rotor of an induction motor has a double cylindrical structure, the inner cylinder uses a laminated iron core, and the outer cylinder has magnetic permeability in the radial direction. It is known to use a magnetically anisotropic conductor formed with a magnetic permeability greater than that of . In this case, the magnetically anisotropic conductor that forms the outer cylinder is formed by radially arranging radially long magnetic strips, such as magnetic wires, and casting a conductive material such as steel or aluminum between them. However, because the magnetic permeability varies greatly depending on how the magnetic wires are arranged, it has been difficult to obtain this type of electromagnetic member that has a uniform predetermined magnetic permeability as a whole.

〔発明の目的〕[Purpose of the invention]

本発明はこれにかんがみなされたもので、その目的とす
るところは、電磁気的には均質で、しかも製作容易なこ
の種電磁部材の製造法を提供することにある。
The present invention has been conceived in view of this, and its object is to provide a method of manufacturing this type of electromagnetic member that is electromagnetically homogeneous and easy to manufacture.

〔発明の概要〕[Summary of the invention]

すなわち本発明は、まず複数本の磁性条材を並設し、こ
の並設された磁性条材の一方端を芯条材に固着して刷子
帯を形成する。そしてこの刷子帯を螺旋状に巻回して磁
性条材林を形成する。次いでこの磁性条材林に導電材を
鋳込んで形成するようになし所期の目的を達成するよう
にしたものである。第1図において1が芯線すなわち芯
条材であり、この芯線には多数本の鉄等で構成し九磁性
線すなわち磁性条材2が植込んである。芯線1と磁性線
2とにより刷子帯が形成される。刷子帯は製作しようと
する回転子の外径よシ、やや大きい径をもつように螺旋
状に多数回巻き廻される。その際磁性線2は内径側へ、
螺旋の中心軸からみて放射状に、しかも中心軸から径方
向には略同−の空間をもつように構成しである。云い換
えれば磁性線の先端は、螺旋の中心軸を中心軸として共
用する円筒表面に接するように、切り揃えられる。3は
薄鉄板を積層して構成し九鉄心であり、その外周は磁性
線の先端に接する。次に、これら磁性線を植込んだ芯線
と、鉄心とは両側面に締付はリング4を挾み、貫通する
締付ボルト5と締付ナツト6によって堅牢に締付けられ
る。すなわち、螺旋状の芯線は押圧されて芯線同志が密
着するように構成される。このときの軸方向の長さは鉄
心の長さと略同−になるように予め芯線の長さは調整し
ておく。締付はリング4は、芯線を押圧すると同・時に
磁性線の側面に周方向に連続し、かつ外部とも連結する
端部空間5を形成するように構成しである。
That is, in the present invention, first, a plurality of magnetic strips are arranged in parallel, and one end of the arranged magnetic strips is fixed to a core strip to form a brush band. This brush band is then spirally wound to form a forest of magnetic strips. Next, a conductive material is cast into this magnetic strip forest to achieve the desired purpose. In FIG. 1, reference numeral 1 denotes a core wire or core strip material, and nine magnetic wires or magnetic strips 2 made of a large number of iron or the like are embedded in this core wire. The core wire 1 and the magnetic wire 2 form a brush band. The brush band is wound spirally many times so that it has a slightly larger diameter than the outer diameter of the rotor to be manufactured. At that time, the magnetic wire 2 moves toward the inner diameter side,
It is configured to have substantially the same space radially when viewed from the central axis of the spiral, and in the radial direction from the central axis. In other words, the tips of the magnetic wires are trimmed so that they are in contact with the cylindrical surface that shares the central axis of the spiral. 3 is a nine-iron core made up of laminated thin iron plates, the outer periphery of which is in contact with the tip of the magnetic wire. Next, the core wire in which these magnetic wires are implanted and the iron core are firmly tightened on both sides by a tightening bolt 5 and a tightening nut 6 that sandwich a ring 4 and pass through the core wire. That is, the spiral core wires are pressed so that the core wires come into close contact with each other. The length of the core wire is adjusted in advance so that the length in the axial direction at this time is approximately the same as the length of the iron core. The tightening ring 4 is configured to press the core wire and at the same time form an end space 5 that continues in the circumferential direction on the side surface of the magnetic wire and is also connected to the outside.

次にこれら一体に締付けられた部材は、例えば第2図に
示したようにるつぼ7の中で予熱され、適尚な温度にな
るまで昇温し、不活性ガス雰囲気中で溶融銅8を鋳込む
。鋳込んだ銅は、磁性線のまわりの空間を満たし、更に
端部空間5を満たすこと罠なる。鋳込んだ部材が冷えて
後、締付はナツト6、締付はボルト5、締付はリング4
を除去し、外周を切削して芯線部分を除去する。なお、
締付は治具類は、予め除去することを考えて、組立て時
に剥離材を施しておくと作業し易い。
Next, these members that have been tightened together are preheated in a crucible 7, for example, as shown in FIG. It's crowded. The cast copper fills the space around the magnetic wire and also fills the end space 5. After the cast parts have cooled down, tighten nuts 6, bolts 5, and rings 4.
, and cut the outer periphery to remove the core wire part. In addition,
Tightening will be easier if you consider removing the jigs in advance and apply a release material when assembling.

締付はボルトを除去した後に、軸を圧入し鉄心と一体に
成形すると、第3図のような回転子が得られる。図中9
が外側円筒、3が鉄心、10が軸である。外側円筒の端
部は鋼のエンドリンク11−が形成され、その他の部分
は第4図に示すような、径方向に磁性線2が並び間に銅
13の満たされた磁気異方性部材12が形成される。磁
気異方性導電部材は、径方向の透磁率(μ、)が、周方
向透磁率(μm) よりも大きな磁気異方性を示す。
After removing the bolts, the shaft is press-fitted and molded integrally with the iron core, resulting in a rotor as shown in Fig. 3. 9 in the diagram
is the outer cylinder, 3 is the iron core, and 10 is the shaft. A steel end link 11- is formed at the end of the outer cylinder, and the other part is a magnetic anisotropic member 12 in which magnetic wires 2 are arranged in the radial direction and filled with copper 13, as shown in FIG. is formed. The magnetically anisotropic conductive member exhibits magnetic anisotropy in which the radial magnetic permeability (μ, ) is larger than the circumferential magnetic permeability (μm).

ここで芯線と磁性線の構成法について説明する。Here, a method of configuring the core wire and magnetic wire will be explained.

芯線は最初は長く直線状に延びており、この芯線の長さ
方向の同一面上で芯線と直角になるように、適当な長さ
に切り揃え九磁性線を植え込む。その後、磁性線が中心
軸に直角に向くように芯線を螺旋状に巻き廻していけば
製作が容易である、芯線に磁性線を植込むときには、例
えば第5図のように磁性線2を芯線1のまわシに約1/
2回巻いて、然る後、芯線カバー14で押さえていく方
法がよい。このときには芯線カバーに第6図に示すよう
な凹部15を多数個設けるようにするとよい。
The core wire initially extends in a long straight line, and nine magnetic wires are cut to a suitable length and implanted so as to be perpendicular to the core wire on the same plane in the length direction of the core wire. After that, it is easy to manufacture the core wire by winding it in a spiral so that the magnetic wire faces perpendicular to the central axis.When inserting the magnetic wire into the core wire, for example, as shown in Approximately 1/4 inch
A good method is to wrap it twice and then press it with the core cover 14. In this case, it is preferable to provide the core wire cover with a large number of recesses 15 as shown in FIG.

本実施例によれば、磁性線を多数本植え込んだ芯線を、
螺旋状に巻き廻すだけで、磁性線を放射状に並べること
ができるので、磁気異方性導体を有する回転子を容易に
製作できるという利点がある。tた磁性線は芯線に支え
られているので、磁性線は中心軸に直角方向の位置から
、大きくずれることはなく、さらに芯線を中心軸方向に
押圧す。
According to this embodiment, a core wire in which a large number of magnetic wires are implanted,
Since the magnetic wires can be arranged radially by simply winding them in a spiral, there is an advantage that a rotor having magnetically anisotropic conductors can be easily produced. Since the bent magnetic wire is supported by the core wire, the magnetic wire does not deviate greatly from the position perpendicular to the central axis, and further presses the core wire in the direction of the central axis.

るので磁性線の占積率が向上し、磁気的に均質の回転子
とすることができる。次に、鋳込み時には鉄心も同時に
組込んだ状態で鋳込んでいるので、鉄心と磁気異方性導
体からなる外側円筒が一体に製作できるという利点があ
る。また端部の締付はリングに空間を設けているので、
外側円筒の端部に鋼のエンドリングが一体く製作できる
という利点がある。さらに芯線部の軸方向厚みを部分的
に薄くする凹部を設けているので、鋳込み時に発生する
不要な気体を外部に導くことができるので、鋳込みが速
やか忙為し得る。
Therefore, the space factor of the magnetic wires is improved, and a magnetically homogeneous rotor can be obtained. Next, since the iron core is also incorporated at the time of casting, there is an advantage that the iron core and the outer cylinder made of the magnetically anisotropic conductor can be manufactured in one piece. In addition, there is a space in the ring for tightening the ends, so
An advantage is that a steel end ring can be manufactured integrally at the end of the outer cylinder. Further, since a recess is provided to partially reduce the thickness of the core wire in the axial direction, unnecessary gas generated during casting can be guided to the outside, so that casting can be carried out quickly.

第7図は、本発明の他の実施例を示すもので、第1図と
異なるのは、螺旋状の芯線に中心軸から外周側へ伸びる
ように磁性線を植えつけた点である@この場合は、第4
図のような場合に磁性線の先端部で磁性線が交錯するの
を防止できる利点がある。
Fig. 7 shows another embodiment of the present invention, which differs from Fig. 1 in that magnetic wires are planted in the spiral core wire so as to extend from the central axis to the outer periphery. If the fourth
In the case shown in the figure, there is an advantage in that the magnetic wires can be prevented from intersecting at the tips of the magnetic wires.

なお、実施例では磁性線として例えば鉄線を使用すると
述べたが、磁性線の代りに例えば鉄線に鋼を被せた複合
磁性導線を使用すると、鋳込んだ鋼との相性が良いので
鋳込みが速やかにできるという利点がある。
In addition, in the example, it was described that iron wire, for example, is used as the magnetic wire, but if a composite magnetic conductor wire, for example, made of iron wire covered with steel, is used instead of the magnetic wire, it will be compatible with the cast steel, so that the casting can be done quickly. It has the advantage of being possible.

更に、第8図は磁性線を縮らせた例であり、このときは
磁性線と銅との結合がより強固になり、機械的に丈夫な
回転子を得ることができる。
Furthermore, FIG. 8 shows an example in which the magnetic wires are shrunk. In this case, the bond between the magnetic wires and the copper becomes stronger, and a mechanically strong rotor can be obtained.

〔発明の効果〕〔Effect of the invention〕

本発明によれば磁性線を放射状に容易に並べることがで
きるので、電磁気的に均質な磁気異方性回転子が容易に
製作できるという効果がある。
According to the present invention, since magnetic lines can be easily arranged radially, an electromagnetically homogeneous magnetic anisotropic rotor can be easily produced.

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

第1図は本発明の一実施例を示す電磁部材の分解斜視図
、第2図は同じくその鋳込み状態を示す1部断面図、第
3図は磁気異方性導体の電磁部材を用いた回転子の一部
破断斜視図、第4図は第3図のA枠部拡大図、第5図は
本発明の実施例を示す、芯線部拡大斜視図、第6図は芯
線カバーの平面図、第7図及び第8図は本発明の他の実
施例を示すもので、磁性条材の斜視図である。 1・・・芯線(芯条材)、2・・・磁性線(磁性条材)
、3・・・鉄心、8・・・溶融鋼、9・・・外側円筒、
10・・・軸、11・・・エンドリング、12・・・磁
気異方性導電部材、 。
Fig. 1 is an exploded perspective view of an electromagnetic member showing an embodiment of the present invention, Fig. 2 is a partial sectional view showing the same casting state, and Fig. 3 is a rotation using the electromagnetic member of a magnetically anisotropic conductor. FIG. 4 is an enlarged view of the A frame in FIG. 3, FIG. 5 is an enlarged perspective view of the core wire part showing an embodiment of the present invention, and FIG. 6 is a plan view of the core wire cover. FIGS. 7 and 8 show other embodiments of the present invention, and are perspective views of magnetic strips. 1... Core wire (core strip material), 2... Magnetic wire (magnetic strip material)
, 3... Iron core, 8... Molten steel, 9... Outer cylinder,
DESCRIPTION OF SYMBOLS 10... Shaft, 11... End ring, 12... Magnetic anisotropic conductive member.

Claims (1)

【特許請求の範囲】 1、並設された磁性条材の空間に、導電材を鋳込んで電
磁部材を製造するに際し、 a)、複数本の磁性条材を並設し、該並設された磁性条
材の一方端を芯条材に固着して刷子帯を形成する工程、 b)、該刷子帯を螺旋状に巻回して磁性条材林を形成す
る工程、 c)、該磁性条材林に導電材を鋳込む工程、を有する電
磁部材の製造方法。 2、前記刷子帯を螺旋状に巻回するに際し、刷子帯の芯
条材が外周側となるように巻回したことを特徴とする特
許請求の範囲第1項記載の電磁部材の製造方法。
[Scope of Claims] 1. When manufacturing an electromagnetic member by casting a conductive material into a space of magnetic strips arranged in parallel, a) A plurality of magnetic strips are arranged in parallel, a step of fixing one end of the magnetic strip to a core strip to form a brush strip; b) a step of spirally winding the brush strip to form a forest of magnetic strips; c) a step of forming a forest of magnetic strips; A method for manufacturing an electromagnetic member, comprising the step of casting a conductive material into a forest. 2. The method of manufacturing an electromagnetic member according to claim 1, wherein the brush band is wound spirally so that the core strip of the brush band is on the outer peripheral side.
JP6368685A 1985-03-29 1985-03-29 Manufacture of electromagnetic member Pending JPS61224840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6368685A JPS61224840A (en) 1985-03-29 1985-03-29 Manufacture of electromagnetic member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6368685A JPS61224840A (en) 1985-03-29 1985-03-29 Manufacture of electromagnetic member

Publications (1)

Publication Number Publication Date
JPS61224840A true JPS61224840A (en) 1986-10-06

Family

ID=13236501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6368685A Pending JPS61224840A (en) 1985-03-29 1985-03-29 Manufacture of electromagnetic member

Country Status (1)

Country Link
JP (1) JPS61224840A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105048744A (en) * 2015-07-17 2015-11-11 中国科学院电工研究所 Cast copper rotor for variable frequency motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105048744A (en) * 2015-07-17 2015-11-11 中国科学院电工研究所 Cast copper rotor for variable frequency motor

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