JPS6046757A - Manufacture of rotor - Google Patents

Manufacture of rotor

Info

Publication number
JPS6046757A
JPS6046757A JP58151531A JP15153183A JPS6046757A JP S6046757 A JPS6046757 A JP S6046757A JP 58151531 A JP58151531 A JP 58151531A JP 15153183 A JP15153183 A JP 15153183A JP S6046757 A JPS6046757 A JP S6046757A
Authority
JP
Japan
Prior art keywords
magnet
rotor
tape
outer periphery
core
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
JP58151531A
Other languages
Japanese (ja)
Inventor
Susumu Kurokawa
進 黒川
Masaharu Muramatsu
正治 村松
Masanao Yatsuhara
昌尚 八原
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP58151531A priority Critical patent/JPS6046757A/en
Publication of JPS6046757A publication Critical patent/JPS6046757A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2726Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/04Balancing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE:To strengthen a rotor against its centrifugal force by protecting it by winding a binding tape on the outer periphery of a permanent magnet. CONSTITUTION:A projection 7 for mounting a balance weight is provided similarly to a normal rotor at the side face of an end ring. Then, a ferrite magnet 1 is bonded along a positioning projection. After the bonded magnet 1 is wound to bundle the magnet 8 and the core 2 with a glass binding tape 9 so as to reinforce it, it is thermally cured. Subsequently, the tape 9 is cut at the surface, finishing varnish is coated to become smooth. Thus, the outer periphery and the sides of the permanent magnet are surrounded, a rotor which has high strength against its centrifugal force and high reliability can be obtained.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は永久磁石を有する回転子の製法に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for manufacturing a rotor having permanent magnets.

〔発明の背景〕[Background of the invention]

従来のマグネツ)−ロータを第1図に示す。すなわち、
鉄心:2と、マグネット=1より構成され、相互の固着
は、接触面に、接着剤を塗布して行っていた。この方法
によると、製法は簡単であるが、フェライト磁石が、直
接、外に出ているため、保管、組立特等物に当って割れ
易い。又、回転時、接着部に全遠心力が加わるため、接
着面がはがれ易い。磁石に小さな欠損か出来た時、ギャ
ップに詰まってロックする。等の欠点があった。
A conventional magnet rotor is shown in FIG. That is,
It consisted of two iron cores and one magnet, and they were fixed to each other by applying adhesive to their contact surfaces. According to this method, the manufacturing method is simple, but since the ferrite magnet is exposed directly to the outside, it is easy to break when it hits special objects during storage or assembly. Further, during rotation, a total centrifugal force is applied to the adhesive portion, so that the adhesive surface is likely to peel off. When a small defect occurs in the magnet, it gets stuck in the gap and locks. There were drawbacks such as.

〔発明の目的〕[Purpose of the invention]

本発明の目的は高信頼度の回転子を経済的に製造するこ
とにある。
An object of the invention is to economically produce a highly reliable rotor.

〔発明の概要〕[Summary of the invention]

本発明ではバインド・テープを外周に巻き保護する。ガ
ラス・バインド等強度の高い材料を使えば強度材ともな
る。また磁石の割れを防ぐ為に、ダイカストによって保
護板を構成する。
In the present invention, binding tape is wrapped around the outer circumference for protection. If you use a material with high strength such as glass or bind, it can also be used as a strength material. In addition, to prevent the magnet from cracking, a protective plate is formed by die-casting.

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

本発明の特徴とする処を以下の製造工程ごとに説明する
The features of the present invention will be explained for each manufacturing process below.

(1) 第一工程として一般に使用されている電磁鋼板
を第2図の型状に打抜く。これは中央部に軸用穴4を、
その周囲に数個以上のダイキャストにより積層鉄板を固
着する穴3及び外周部に磁石の位置決め用凸起5を設は
鉄板を打ち抜き鉄心とする。
(1) As the first step, a commonly used electromagnetic steel sheet is punched into the shape shown in Figure 2. This has a shaft hole 4 in the center,
Holes 3 for fixing several or more laminated iron plates are formed around the core by die-casting, and protrusions 5 for positioning the magnet are provided on the outer periphery, and the iron core is punched out of the iron plate.

この打抜鋼板を所要の寸法に積層する。The punched steel plates are stacked to the required dimensions.

(2)第二工程では第391.第4図に示す形状にアル
ミニウムをダイキャストとする。エンドリング6部の高
さは外周加工寸法よりやや、高めになるようにする。ア
ルミニウムは穴6の中にも充填される。またエンドリン
グ側面には通常の回転子と同様にバランスウェイトを取
付けるための凸起7を設ける。
(2) In the second step, No. 391. Die-cast aluminum into the shape shown in FIG. The height of the end ring 6 section should be slightly higher than the outer peripheral machining dimensions. Aluminum is also filled into the holes 6. Further, a protrusion 7 for attaching a balance weight is provided on the side surface of the end ring in the same way as a normal rotor.

(3)第三工程では第5図及び第6図に示す位置につま
り位置決め用凸起5に沿ってフェライト磁石1を接着す
る。
(3) In the third step, the ferrite magnet 1 is adhered to the position shown in FIGS. 5 and 6, that is, along the positioning protrusion 5.

接着には接着の効果を高めるため回転子外周と磁石接着
面をアセトン、シンナー等の有機溶剤を用いて清浄にす
る。
For adhesion, clean the rotor outer circumference and the magnet adhesion surface using an organic solvent such as acetone or thinner to enhance the adhesion effect.

接着剤には主剤を硬化剤の混合比が略1:1の常温速硬
化性の無溶剤エポキシアクリレートを主成分としたもの
を使用する。通常二液型の接着剤は接着面に塗布する前
に主剤と硬化剤を混合して塗布するがこの実施例では主
剤を磁石側接着面に、硬化剤を鉄心側にはソ等量に近い
量を塗布しこれを貼り合せる。このま\でも主剤と硬化
剤が混合し硬化するが、更に混合を効果的にする為接着
面を数回摺動する。硬化は室温で約30分で完了する。
The adhesive used is one whose main component is a solvent-free epoxy acrylate that cures quickly at room temperature and has a mixing ratio of the main agent to the curing agent of approximately 1:1. Normally, with two-component adhesives, the base agent and hardening agent are mixed and applied before being applied to the adhesive surface, but in this example, the base agent is applied to the magnet side adhesive surface, and the hardening agent is applied to the iron core side in almost equal amounts. Apply the desired amount and stick it together. The main agent and curing agent will mix and harden at this point, but in order to make the mixing more effective, slide the adhesive surface several times. Curing is completed in about 30 minutes at room temperature.

この方式によれば混合作業が省略され、またポットライ
フが経過した接着剤を廃棄するような無駄がなくなる。
According to this method, mixing work is omitted, and there is no waste such as discarding adhesive whose pot life has passed.

(4)接着した磁石1はこのま\でもある程度の回転力
に耐えるが更に補強する目的で第4工程としてテープ9
を磁石8と鉄心2とを束ねるように巻つける。使用する
テープは半硬化の不飽和ポリエステル又はエポキシ樹脂
を含浸したガラスバイトテープが適している。ガラスバ
インドテープな必要回数巻回し百数十度の炉中で加熱す
ると樹脂分が硬化しテープが一体化し強度を増加する。
(4) The bonded magnet 1 can withstand some rotational force as it is, but in the fourth step, tape 9 is applied to further strengthen it.
is wound around the magnet 8 and the iron core 2 so as to bundle them together. Suitable tapes are glass bite tapes impregnated with semi-cured unsaturated polyester or epoxy resin. When the glass bind tape is wound the required number of times and heated in a furnace at 100-odd degrees, the resin hardens and the tape becomes one piece, increasing its strength.

またガラスバインドテープ以外のテープ例えば炭素繊維
のテープを使用しても同様の目的を達成することができ
る。
The same objective can also be achieved by using a tape other than the glass bind tape, such as a carbon fiber tape.

(5)硬化したバインドテープの表面は凹凸があるため
平滑にし所定の厚みにするためダイヤモンドバイト等を
用いバインドテープが完全には除去されない程度に切削
加工する。切削面はササフレ立っているので必要に応じ
て仕上げフェノを塗布するO この時、あらかじめ、エンドリング外径を外周仕上加工
寸法よりやや大きめにしであるので、加工後の寸法は第
5図の如くとなり、エンドリングによって、バインドテ
ープ端面のつぶれを保護できる。
(5) Since the surface of the cured bind tape has irregularities, in order to smooth it and obtain a predetermined thickness, a diamond cutting tool or the like is used to cut the bind tape to such an extent that the bind tape is not completely removed. The cut surface has a rough surface, so apply finishing phenol if necessary. At this time, the outer diameter of the end ring is set to be slightly larger than the finishing dimension of the outer periphery, so the dimension after machining will be as shown in Figure 5. Therefore, the end ring can protect the end face of the bind tape from being crushed.

〔発明の効果〕〔Effect of the invention〕

本発明に依れば以上の説明から明らかなように永久磁石
の外周面及び側面が囲まれるので、特に遠心力に対して
強い信頼性の高い回転子を構成することができる。
According to the present invention, as is clear from the above description, since the outer circumferential surface and side surfaces of the permanent magnets are surrounded, it is possible to construct a highly reliable rotor that is particularly strong against centrifugal force.

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

第1図は従来の回転子の一例を示す側面図、第2図は本
発明による打抜き鉄板の形状を示す図、第3図、第4図
は鉄板にダイキャストした形状を示す切断正面図及び側
面図、第5図、第6図はパインディングした状態を示す
切断正面図、及び側面図である。 1は磁石、2は積層鉄心、6はダイキャストで構成した
エンドリング、9はバインドである。 第 j 図 第2 図 凍 3 図 第4図
FIG. 1 is a side view showing an example of a conventional rotor, FIG. 2 is a view showing the shape of a punched iron plate according to the present invention, and FIGS. 3 and 4 are cutaway front views showing the shape of a die-cast iron plate. The side view, FIG. 5, and FIG. 6 are a cutaway front view and a side view showing the pinned state. 1 is a magnet, 2 is a laminated iron core, 6 is an end ring made of die-casting, and 9 is a bind. Figure j Figure 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 外周に磁石位置決めの突起のある鉄板を積層し積層鉄心
を構成する第1工程と、前記積層鉄心の外周に接着する
磁石側面の破損を防止するため、磁石より1〜数額高い
エンドリングを、アルミニウムダイキャストで形成する
第2工程と二液型接着剤を前記磁石と前記積層鉄心に別
々に塗布し、前記磁石を前記積層鉄心に接着する第3工
程と、接着した磁石を補強する為バインドテープを前記
磁石と積層鉄心とを束ねるように巻回した後、樹脂分を
加熱硬化する第4工程と、前記バインドチーブ表面を切
削し、仕上フェスを塗布し平滑にする第5工程とから成
る回転子の製造方法。
The first step is to form a laminated iron core by laminating iron plates with protrusions for magnet positioning on the outer periphery, and in order to prevent damage to the side surface of the magnet that is adhered to the outer periphery of the laminated iron core, an end ring that is one to several times more expensive than the magnet is used. a second step of forming with aluminum die casting; a third step of separately applying a two-component adhesive to the magnet and the laminated core; and bonding the magnet to the laminated core; and binding to reinforce the bonded magnet. After winding the tape to bind the magnet and the laminated core, the method consists of a fourth step of curing the resin by heating, and a fifth step of cutting the surface of the bind chive and applying a finishing face to make it smooth. Rotor manufacturing method.
JP58151531A 1983-08-22 1983-08-22 Manufacture of rotor Pending JPS6046757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58151531A JPS6046757A (en) 1983-08-22 1983-08-22 Manufacture of rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58151531A JPS6046757A (en) 1983-08-22 1983-08-22 Manufacture of rotor

Publications (1)

Publication Number Publication Date
JPS6046757A true JPS6046757A (en) 1985-03-13

Family

ID=15520546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58151531A Pending JPS6046757A (en) 1983-08-22 1983-08-22 Manufacture of rotor

Country Status (1)

Country Link
JP (1) JPS6046757A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240514A1 (en) * 1985-10-16 1987-10-14 Sundstrand Corporation Permanent magnet rotor assembly with fibrous wrap
US5828152A (en) * 1995-02-07 1998-10-27 Denyo Kabushiki Kaisha Rotor with permanent magnet of generator and method of manufacturing the same
US6006418A (en) * 1995-02-07 1999-12-28 Denyo Kabushiki Kaisha Method of manufacturing a rotors with permanent magnet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240514A1 (en) * 1985-10-16 1987-10-14 Sundstrand Corporation Permanent magnet rotor assembly with fibrous wrap
EP0240514A4 (en) * 1985-10-16 1988-02-15 Sundstrand Corp Permanent magnet rotor assembly with fibrous wrap.
US5828152A (en) * 1995-02-07 1998-10-27 Denyo Kabushiki Kaisha Rotor with permanent magnet of generator and method of manufacturing the same
US6006418A (en) * 1995-02-07 1999-12-28 Denyo Kabushiki Kaisha Method of manufacturing a rotors with permanent magnet

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