JPH034135Y2 - - Google Patents
Info
- Publication number
- JPH034135Y2 JPH034135Y2 JP1984035491U JP3549184U JPH034135Y2 JP H034135 Y2 JPH034135 Y2 JP H034135Y2 JP 1984035491 U JP1984035491 U JP 1984035491U JP 3549184 U JP3549184 U JP 3549184U JP H034135 Y2 JPH034135 Y2 JP H034135Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotor
- annular
- thin
- metal wire
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 27
- 238000004512 die casting Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000012632 extractable Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- -1 stainless steel Chemical class 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Description
【考案の詳細な説明】
本考案は、外周部に永久磁石を装着した回転子
を電機子巻線を施した固定子内へ所定の空隙を介
して対向配置し、回転子の回転に応じてインバー
タ等の制御装置を介して電機子巻線の各相に順次
供給される電源によつて回転子を駆動する無刷子
電動機に係り、特に密閉型圧縮機等への適用を目
的とした無刷子電動機の回転子構造に係るもので
ある。[Detailed description of the invention] This invention consists of placing a rotor equipped with permanent magnets on its outer periphery inside a stator with an armature winding, facing the stator with a predetermined gap in between. A brushless electric motor that drives a rotor by power that is sequentially supplied to each phase of an armature winding via a control device such as an inverter, and is particularly applicable to hermetic compressors. This relates to the rotor structure of an electric motor.
一般に、密閉型圧縮機に使用される無刷子電動
機の回転子構造は、鉄等の磁性体にて円筒状に構
成した回転子ヨークの外周部にフエライト等の保
磁力の高い永久磁石（以下磁石と称す）を装着す
るものであるが、この他に、補修不能な完全密封
条件下に於て機械的強度に脆いフエライト磁石の
品質を長期に亘り保護するための構造が要求され
る。特に高速回転化指向にある最近の密閉型圧縮
機にあつては、何等かの原因によつて磁石に生じ
たき裂部が、回転時の遠心力または振動等によつ
て増長して磁石の破損や飛散に至る危険があるた
め、適当な保護部材によつて磁石の周囲を完全に
覆つて構成する必要がある。 In general, the rotor structure of brushless motors used in hermetic compressors has a cylindrical rotor yoke made of magnetic material such as iron, and a permanent magnet (hereinafter referred to as magnet In addition to this, a structure is required to protect the quality of the mechanically fragile ferrite magnet over a long period of time under completely sealed conditions that cannot be repaired. Especially in the case of recent hermetic compressors, which tend to rotate at higher speeds, cracks that occur in the magnets due to some reason may increase due to centrifugal force or vibrations during rotation, and the magnets may be damaged. Since there is a risk of the magnet being scattered, it is necessary to completely cover the magnet with an appropriate protective member.
そこで第１図に示す如く、磁石２の軸方向両端
にはアルミニウム等のダイカストによつて環状保
護部６を形成し、一方磁石２の外周部にはガラス
等の繊維紐、またはステンレス等の金属線をコイ
ル状に巻回した巻装状保護部３が形成される。ガ
ラス繊維及びステンレス線は密閉型圧縮機内に於
て抽出物等の発生する危惧がない点、耐遠心力の
ための引張強度に優れる点及び非磁性体である点
等から磁石外周部の保護部材として好適なもので
ある。またステンレス等の金属を用いる場合に於
て、線材による巻装体として構成する理由は主に
渦電流損の低減を目的とするものであり、必要に
応じて金属線外周部に絶縁被覆等を設けて使用さ
れる。 Therefore, as shown in FIG. 1, an annular protective part 6 is formed at both ends of the magnet 2 in the axial direction by die-casting of aluminum or the like, while the outer circumference of the magnet 2 is made of fiber string such as glass or metal such as stainless steel. A wrapped protection portion 3 is formed by winding a wire into a coil shape. Glass fiber and stainless steel wire are suitable as protective materials for the outer periphery of magnets because there is no risk of extractables being generated in a hermetic compressor, they have excellent tensile strength to withstand centrifugal force, and they are non-magnetic materials. It is suitable as In addition, when using metals such as stainless steel, the reason for constructing the wire wrapping body is mainly to reduce eddy current loss, and if necessary, an insulating coating etc. is applied to the outer periphery of the metal wire. provided and used.
尚第１図に於て４は環状保護部６を保持する棒
状の連結部であり、環状保護部と一体にダイカス
ト形成するものである。また７は略三日月形の平
面形状を有するバランスウエイトであり、環状保
護部６と一体にダイカスト形成したり、加締め等
により取り付けるものである。 In FIG. 1, reference numeral 4 denotes a rod-shaped connecting portion that holds the annular protection portion 6, and is die-cast integrally with the annular protection portion. Reference numeral 7 denotes a balance weight having a substantially crescent-shaped planar shape, and is formed integrally with the annular protection portion 6 by die-casting or attached by crimping or the like.
第１図に示す回転子の製作手順の概略を説明す
ると、先ずアルミニウム等のダイカストによつて
環状保護部６、棒状連結部４及びバランスウエイ
ト７を回転子ヨーク１の周辺に形成し、次に回転
子ヨーク１の外周部に所定の個数の磁石２を接着
剤等で仮固定して装着し、最後に金属線等を巻回
し、樹脂で固着したり、巻回物の端末を環状保護
部６に挟持させる等して巻装状保護部３を形成す
る。この手順に於て注目すべき点は環状保護部６
をダイカスト形成した後に磁石２の装着が行われ
る点であり、これはダイカスト時のヒートシヨツ
クによつて磁石が急激な熱歪を受けて破損するの
を回避するためである。 To outline the manufacturing procedure of the rotor shown in FIG. 1, first, the annular protection part 6, the rod-shaped connection part 4, and the balance weight 7 are formed around the rotor yoke 1 by die-casting of aluminum or the like. A predetermined number of magnets 2 are temporarily fixed and attached to the outer periphery of the rotor yoke 1 using an adhesive, etc., and then a metal wire or the like is wound around the rotor yoke 1 and fixed with resin, or the end of the wound material is attached to a ring-shaped protective part. 6 to form a wrapped protective portion 3. The important point in this procedure is the annular protection part 6.
The magnet 2 is attached after die-casting, and this is to prevent the magnet from being damaged by sudden thermal strain caused by the heat shock during die-casting.
さて、上述の如く構成される回転子に於て、回
転子の軸方向両端に位置する環状保護部相互間の
寸法は、ダイカスト金型が一定であれば常に一定
の寸法に構成される。一方フエライト磁石は焼結
時に体積で30〜40％の収縮を起こすため焼成寸法
のバラツキは±２％程度に達し、その結果例えば
軸方向長100mmの磁石を使用した場合、磁石端部
と環状保護部との間には最大４mm程度の隙間を生
じる結果となる。勿論研削等の手段によつて磁石
長の管理は可能であるが、加工コストが莫大なも
のとなるため実用上は上記バラツキを有したまま
で使用せざるを得ない。 Now, in the rotor configured as described above, the dimensions between the annular protective portions located at both axial ends of the rotor are always constant if the die casting mold is constant. On the other hand, ferrite magnets shrink by 30 to 40% in volume during sintering, so the variation in firing dimensions reaches about ±2%.As a result, for example, when using a magnet with an axial length of 100 mm, the end of the magnet and the annular protection This results in a gap of about 4 mm at maximum between the two parts. Of course, it is possible to control the magnet length by means such as grinding, but the processing cost becomes enormous, so in practice it is necessary to use the magnets with the above-mentioned variations.
従つて、磁石外周部に巻装状保護部を形成する
ために金属線等を巻回する際、磁石端部と環状保
護部との隙間に巻回物が落ち込んでしまうといつ
た問題が発生する。第２図はこの現象を説明する
磁石端部近傍の正面拡大断面図であり、巻装状保
護部３の巻回物としてステンレス等の金属線９を
用いた場合を示している。第２図からも明らかな
ように、金属線９は磁石２の端部に於て、磁石端
部と環状保護部との隙間８に落ち込み部１０を生
じる。この結果磁石端部が保護部から露出し、磁
石の保護が不完全となつてしまう。また金属線９
はひとつながりのコイル状に巻回されているた
め、落ち込み部がさらに拡大する危険が存在し、
もし金属線端末の固定後に落ち込み部の拡大が生
じた場合、巻装状保護部３の磁石２に対する締め
付け及び保護効果が益々喪失される結果となる。 Therefore, when winding a metal wire or the like to form a wrapped protective part around the outer circumference of a magnet, a problem arises in which the wound material falls into the gap between the end of the magnet and the annular protective part. do. FIG. 2 is an enlarged front sectional view of the vicinity of the end of the magnet to explain this phenomenon, and shows a case where a metal wire 9 made of stainless steel or the like is used as the wound material of the wrapped protective portion 3. As is clear from FIG. 2, the metal wire 9 forms a depressed portion 10 at the end of the magnet 2 in the gap 8 between the magnet end and the annular protective portion. As a result, the end portion of the magnet is exposed from the protective portion, resulting in incomplete protection of the magnet. Also metal wire 9
Since it is wound into a continuous coil, there is a risk that the depressed portion will further expand.
If the depressed portion expands after the end of the metal wire is fixed, the effect of tightening and protecting the magnet 2 of the wrapped protective portion 3 will be further diminished.
本考案はかかる欠点の改善を目的とするもので
あり、磁石長のバラツキによつて磁石と環状保護
部との間に生じる隙間に巻装状保護部を形成する
巻回物が落ち込む現象を防止し、磁石保護構造の
品質を向上させた回転子を提供するものであり、
以下本考案の実施例を示す図面に従つて説明を行
う。 The present invention aims to improve this drawback, and prevents the phenomenon in which the wound material forming the wrapped protective part falls into the gap created between the magnet and the annular protective part due to variations in magnet length. and provides a rotor with improved quality of magnet protection structure.
Embodiments of the present invention will be described below with reference to the drawings.
第３図は本考案による回転子磁石端部近傍の正
面拡大断面図であり、第２図に示した例と同一ま
たは相当箇所には第２図と同一の符号を付して従
来と重複する部分の構成説明は省略する。 FIG. 3 is an enlarged front sectional view of the vicinity of the end of the rotor magnet according to the present invention, and the same or equivalent parts as in the example shown in FIG. 2 are given the same reference numerals as in FIG. A description of the configuration of the parts will be omitted.
本考案の特徴とする点は、第３図中符号６ａで
示される環状保護部の外周部近傍に薄肉部分１１
を設けた点であり、この薄肉部分１１を軸方向に
加圧して磁石２の端部に当接させるものである。
この薄肉部分１１を有する環状保護部６ａは、形
成に際して余分な工数を要するものではなく、例
えば予め準備されたダイカスト金型により所定形
状にダイカスト形成されるものである。 The feature of the present invention is that a thin portion 11 is provided near the outer periphery of the annular protective portion indicated by reference numeral 6a in FIG.
This thin portion 11 is pressed in the axial direction to bring it into contact with the end of the magnet 2.
The annular protection portion 6a having the thin portion 11 does not require any extra man-hours to form, and may be die-cast into a predetermined shape using a die-cast mold prepared in advance, for example.
第３図ａは本考案回転子の製作過程に於て、巻
装状保護部の形成前の状態を示しており、ヨーク
１に装着された磁石２は自身の有する長さのバラ
ツキのために環状保護部６ａとの間に隙間８を生
じている。この状態に於て、環状保護部６ａの薄
肉部分１１のみに当接する環状の治具等を介し
て、適当な加圧装置により薄肉部分１１を軸方向
磁石側へ加圧することにより、薄肉部分１１は軸
方向へ塑性変形して第３図ｂに示す如く磁石２の
端部に当接する。上記薄肉部分の加圧変形後は、
従来同様、磁石２の外周に金属線９を巻回して巻
装状保護部３を形成する。この状態を示したもの
が第３図ｂであり、磁石端部と環状保護部との隙
間８は変形した薄肉部分１１によつて塞がれるた
め、金属線９は隙間８へ落ち込むことなく巻回さ
れる。この結果、磁石２の端部が保護部から露出
することなく、磁石の保護が完全に達成されるも
のである。 Figure 3a shows the rotor of the present invention in the manufacturing process, before the winding protection part is formed. A gap 8 is created between the annular protection portion 6a and the annular protection portion 6a. In this state, the thin portion 11 is pressed toward the magnet in the axial direction using an appropriate pressure device using an annular jig or the like that contacts only the thin portion 11 of the annular protection portion 6a. is plastically deformed in the axial direction and comes into contact with the end of the magnet 2 as shown in FIG. 3b. After pressure deformation of the above thin section,
As in the conventional case, a metal wire 9 is wound around the outer periphery of the magnet 2 to form a wrapped protective portion 3. This state is shown in FIG. 3b. Since the gap 8 between the magnet end and the annular protection part is closed by the deformed thin part 11, the metal wire 9 can be wound without falling into the gap 8. It is passed around. As a result, the end of the magnet 2 is not exposed from the protective portion, and the magnet is completely protected.
尚、塑性変形後の薄肉部分１１の外径は磁石２
の外径と略均一である方が金属線９の巻装作業上
好ましく、従つて一般には変形前の薄肉部分１１
の外径が磁石外径より若干大きく形成されるよう
にダイカスト型を設計することが望ましい。この
場合、塑性変形後の薄肉部分１１の外径の一部が
磁石外径より突出することもあり得るが、巻回さ
れる金属線９の外周面より突出しない程度であれ
ば実用上は支障なく、必要であれば変形した薄肉
部分１１の外径に切削等を施した後金属線を巻回
してもよい。 Note that the outer diameter of the thin portion 11 after plastic deformation is equal to that of the magnet 2.
It is preferable for the winding work of the metal wire 9 to be approximately uniform with the outer diameter of the thin portion 11 before deformation.
It is desirable to design the die casting mold so that the outer diameter of the magnet is slightly larger than the outer diameter of the magnet. In this case, a part of the outer diameter of the thin portion 11 after plastic deformation may protrude from the outer diameter of the magnet, but as long as it does not protrude from the outer peripheral surface of the metal wire 9 to be wound, it is not a practical problem. Alternatively, if necessary, the outer diameter of the deformed thin-walled portion 11 may be cut or otherwise wound with a metal wire.
第４図は巻回される金属線９の端末固定構造を
示す回転子端部の正面拡大図であり、金属線９の
端末１３は環状保護部６ａの薄肉部分１１に予め
設けられた溝１２へ引き込んだ後、加締め固定に
よつて環状保護部６ａに挟持されるものである。
本考案に於ては第２図に示した金属線の落ち込み
部１０が存在しないため、金属線端末１３の固定
時または固定後に金属線が緩む心配はなく、従つ
て第４図に示した簡単な端末固定構造が採用可能
となるほか、樹脂等によつて巻装状保護部を改め
て固着する必要も生じない。 FIG. 4 is an enlarged front view of the end of the rotor showing the end fixing structure of the metal wire 9 to be wound. After being pulled in, it is held between the annular protective portions 6a by crimping and fixing.
In the present invention, since there is no depressed portion 10 of the metal wire shown in FIG. 2, there is no worry that the metal wire will loosen when or after fixing the metal wire end 13, and therefore the simple method shown in FIG. In addition to making it possible to adopt a terminal fixing structure, there is no need to fix the wrapped protective part again using resin or the like.
また本考案に於ては、加圧変形させる部分が薄
肉であるため、小さな圧力によつて容易に変形加
工が達成され、従つて薄肉部分１１以外の箇所へ
の応力の波及は微少である。また一方、フエライ
ト磁石は圧縮力に対しては比較的大きな強度を有
しているため、薄肉部分１１の圧迫に十分耐え得
るものである。従つて本考案の加圧変形過程に於
て、薄肉部分１１以外の環状保護部６ａ、バラン
スウエイト７ａ及び磁石２等が大きな変形を生じ
たり破損したりすることは皆無であり、本考案に
於ける薄肉部分１１はかかる効果を目的として設
置されるものである。またバランスウエイト７ａ
は従来同様の形状でも支障ないが、薄肉部分１１
の変形加工を容易にするため、第３図に示す如く
外径を若干小さく構成することが好ましく、前述
の如く変形加工による影響は微少であるため、バ
ランスウエイトの取付寸法の精度が悪化する危惧
はない。 Further, in the present invention, since the portion to be deformed under pressure is thin, the deformation process can be easily achieved with a small pressure, and therefore the spread of stress to locations other than the thin portion 11 is minimal. On the other hand, since the ferrite magnet has relatively high strength against compressive force, it can sufficiently withstand the pressure of the thin portion 11. Therefore, in the pressurized deformation process of the present invention, the annular protective portion 6a, balance weight 7a, magnet 2, etc. other than the thin wall portion 11 will not be significantly deformed or damaged. The thin walled portion 11 is provided for the purpose of achieving this effect. Also balance weight 7a
There is no problem even if the shape is the same as the conventional one, but the thin part 11
In order to facilitate the deformation process, it is preferable to configure the outer diameter to be slightly smaller as shown in Figure 3.As mentioned above, the effect of the deformation process is minimal, so there is a risk that the accuracy of the mounting dimensions of the balance weight will deteriorate. There isn't.
尚、複数個装着される磁石の各々がそれぞれ異
なる軸方向長を有している場合も想定されるが、
この場合は環状保護部の薄肉部分に当接する加圧
治具を各々の磁石に対応する個数に分割して配設
し、それぞれの磁石長のバラツキに応じた変形量
を前記薄肉部分に施すことにより本考案の目的は
達成される。また環状保護部に設ける薄肉部分
は、磁石の軸方向両端に位置する２つの環状保護
部の両方に設けてもよいが、回転子製作の作業上
は環状保護部の一方のみに設けることが好まし
く、他方の環状保護部は磁石の基準面として用い
る構造が実用的である。また第３図に示した本考
案回転子の実施例では巻装状保護部としてステン
レス等の金属線を用いた例を示したが、ガラス繊
維等他の巻回物を用いる構造のものであつても本
考案の発揮する効果は何等変わるものではない。 Furthermore, it is assumed that each of the plurality of attached magnets has a different axial length, but
In this case, the pressure jig that comes into contact with the thin walled portion of the annular protection portion is divided into pieces corresponding to each magnet, and the thin walled portion is deformed by an amount corresponding to the variation in the length of each magnet. Thus, the purpose of the present invention is achieved. Furthermore, the thin-walled portion provided on the annular protection portion may be provided on both of the two annular protection portions located at both ends of the magnet in the axial direction, but it is preferable to provide it on only one of the annular protection portions from the perspective of rotor manufacturing work. A practical structure is such that the other annular protective portion is used as a reference surface for the magnet. In addition, in the embodiment of the rotor of the present invention shown in Fig. 3, a metal wire such as stainless steel wire is used as the winding protection part, but it is also possible to use a structure using other winding material such as glass fiber. However, the effects of the present invention will not change in any way.
以上説明した如く本考案によれば、環状保護部
の外周部近傍に設けた薄肉部分を加圧変形させて
磁石端部に当接させるといつた簡単な構成及び手
順によつて、他の回転子構成要素に不必要な変形
または破損を与えることなく、磁石端部の保護部
からの露出が防止されるとともに巻装状保護部に
よる磁石の締め付け効果が維持され、磁石保護構
造の品質を著しく向上させ得るものであり、密閉
型圧縮機等へ適用する回転子としてその実用的効
果は著大である。 As explained above, according to the present invention, the thin part provided near the outer periphery of the annular protective part is pressurized and deformed to bring it into contact with the end of the magnet. The end of the magnet is prevented from being exposed from the protective part without causing unnecessary deformation or damage to the child components, and the tightening effect of the magnet by the wrapped protective part is maintained, significantly improving the quality of the magnet protective structure. The practical effect of this rotor as a rotor applied to a hermetic compressor or the like is significant.
第１図及び第２図は従来の回転子の構成を説明
するための実施例を示し、第１図ａは平面断面
図、同図ｂは同図ａをＰ−Ｑ−Ｒ線にて切断して
示す正面断面図、第２図は磁石端部近傍の正面拡
大断面図、第３図及び第４図は本考案による回転
子の実施例を示し、第３図ａは回転子製作過程に
於ける巻装状保護部形成前の状態、同図ｂは巻装
状保護部形成後の状態をそれぞれ示す磁石端部近
傍の正面拡大断面図、第４図は巻装状保護部の端
末固定構造を示す回転子端部の正面拡大図であ
る。
１……回転子ヨーク、２……永久磁石、３……
巻装状保護部、５……シヤフト穴、６，６ａ……
環状保護部、７，７ａ……バランスウエイト、８
……隙間、９……金属線、１１……薄肉部分、１
３……巻装状保護部端末。
Figures 1 and 2 show an example for explaining the structure of a conventional rotor, where Figure 1a is a plan sectional view, and Figure 1b is a cross-sectional view of Figure 1 taken along the P-QR line. 2 is an enlarged front sectional view of the vicinity of the magnet end, FIGS. 3 and 4 show an embodiment of the rotor according to the present invention, and FIG. 3a shows the rotor manufacturing process. Fig. 4 is an enlarged front sectional view of the vicinity of the end of the magnet, showing the state before the winding protection part is formed, and Figure 4b shows the state after the winding protection part is formed, and Figure 4 shows the terminal fixation of the winding protection part. It is a front enlarged view of the rotor end part which shows a structure. 1...Rotor yoke, 2...Permanent magnet, 3...
Wrapped protective part, 5... Shaft hole, 6, 6a...
Annular protection part, 7, 7a...Balance weight, 8
...Gap, 9...Metal wire, 11...Thin wall part, 1
3...Wrapped protective part terminal.
Claims (1)
環状保護部を円筒状回転子ヨークの軸方向両端に
設け、次に焼結により形成された磁石を前記回転
子ヨークの外周部に装着し、次に繊維紐または金
属線をコイル状に巻回して磁石の外周部を保護す
る巻装状保護部を前記磁石の外周部に設けて構成
される回転子に於て、前記一対の環状保護部の少
なくとも一方の外周部近傍を薄肉に構成し、この
薄肉部分を軸方向に加圧して前記磁石端部に当接
させたことを特徴とする回転子。 A pair of annular protectors that are formed in an annular shape to protect the ends of the magnets are provided at both axial ends of the cylindrical rotor yoke, and then magnets formed by sintering are attached to the outer periphery of the rotor yoke. , Next, in a rotor configured by providing a winding protection part on the outer periphery of the magnet by winding a fiber string or a metal wire in a coil shape to protect the outer periphery of the magnet, the pair of annular protection A rotor characterized in that a portion near an outer peripheral portion of at least one of the portions is made thin, and the thin portion is pressed in the axial direction to abut against the end portion of the magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3549184U JPS60147959U (en) | 1984-03-13 | 1984-03-13 | rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3549184U JPS60147959U (en) | 1984-03-13 | 1984-03-13 | rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60147959U JPS60147959U (en) | 1985-10-01 |
| JPH034135Y2 true JPH034135Y2 (en) | 1991-02-01 |
Family
ID=30539816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3549184U Granted JPS60147959U (en) | 1984-03-13 | 1984-03-13 | rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60147959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013009553A (en) * | 2011-06-27 | 2013-01-10 | Toyota Central R&D Labs Inc | Rotor of rotary electric machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11489385B2 (en) | 2017-05-29 | 2022-11-01 | Mitsubishi Electric Corporation | Rotor, rotary electric machine, and method for manufacturing rotor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648276B2 (en) * | 1975-08-19 | 1981-11-14 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648276U (en) * | 1980-08-21 | 1981-04-28 |
-
1984
- 1984-03-13 JP JP3549184U patent/JPS60147959U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5648276B2 (en) * | 1975-08-19 | 1981-11-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013009553A (en) * | 2011-06-27 | 2013-01-10 | Toyota Central R&D Labs Inc | Rotor of rotary electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60147959U (en) | 1985-10-01 |
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