JPS61150628A - Ring core for rotary electric machine - Google Patents
Ring core for rotary electric machineInfo
- Publication number
- JPS61150628A JPS61150628A JP27170684A JP27170684A JPS61150628A JP S61150628 A JPS61150628 A JP S61150628A JP 27170684 A JP27170684 A JP 27170684A JP 27170684 A JP27170684 A JP 27170684A JP S61150628 A JPS61150628 A JP S61150628A
- Authority
- JP
- Japan
- Prior art keywords
- annular
- molded body
- magnetic powder
- molding substance
- plate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/02—Synchronous motors
- H02K19/04—Synchronous motors for single-phase current
- H02K19/08—Motors having windings on the stator and a smooth rotor without windings of material with large hysteresis, e.g. hysteresis motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は回転する軸方向に磁気的および構造的な空隙を
有する、いわゆるアキシャルエアギャップモータに使用
する環状鉄心に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an annular core used in a so-called axial air gap motor, which has a magnetic and structural gap in the direction of a rotating axis.
従来のアキシャルギャップモータ（以下ＡＡＧモータと
いう）の半閉スロットをもつ電機子は、第６図に示すよ
うに環状鉄心１に電機子巻線２を巻付けた構造をなして
いる。前記の電機子に用いる環状鉄心１け、ティース部
３が断面路Ｔ字形に形成され、この間のスロット部４Ｆ
ｉ上側の開口部が狭くなった半閉スロットに形成され、
スロットリップル損を低減するようになっている。An armature with a semi-closed slot of a conventional axial gap motor (hereinafter referred to as an AAG motor) has a structure in which an armature winding 2 is wound around an annular iron core 1, as shown in FIG. One annular iron core used in the armature, the teeth part 3 are formed in a T-shaped cross section, and the slot part 4F between them is formed.
i The upper opening is formed into a narrowed semi-closed slot,
It is designed to reduce slot ripple loss.
この環状鉄心１越、第７図に示すようにスロット部４の
形状を間隔をおいて打ち抜いた電磁鋼板を巻き重ねて製
造していた。This annular core 1 was manufactured by winding electromagnetic steel sheets punched out with slot portions 4 at intervals as shown in FIG. 7.
しかしながら電磁鋼板を巻き重ねた環状鉄心１は、商用
周波数より＝高い可聴周波数の交流で駆動される高速の
ＡＡＧモータや、轡用周ｉ数より高い可聴周波数成分を
もつパルス幅制御（以下ＰＷＭ制御という）等による可
変電圧可変周波数電源（以下ＶＶＶＦ電源）等によって
駆動される可変速のＡＡＧモータに使用した場合、電磁
鋼板の磁歪振動による可聴周波数の騒音が非常に大きい
という問題があった。However, the annular iron core 1, which is made by winding electromagnetic steel sheets in layers, can be used with a high-speed AAG motor driven by alternating current with an audible frequency higher than the commercial frequency, or with pulse width control (hereinafter referred to as PWM control) having an audible frequency component higher than the frequency i of the bicycle. When used in a variable speed AAG motor driven by a variable voltage variable frequency power source (hereinafter referred to as VVVF power source), etc., there is a problem in that the noise at audible frequencies due to magnetostrictive vibration of the electromagnetic steel sheet is extremely large.
本発明はかかる点に鑑みなされたもので、騒音が小さく
、シかもスロットリップル損や高周波での渦電流損失を
低く抑えたモータの電機子用環状鉄心を提供することを
目的とするものでらる。The present invention has been made in view of the above, and an object of the present invention is to provide a ring core for an armature of a motor, which has low noise, low throttle ripple loss, and low eddy current loss at high frequencies. Ru.
本発明は金属磁性粉末と電気絶縁性の樹脂を主成分とす
る混合物の圧縮成形体からなりスロット部分およびティ
ース部分を有する環状成形体と、前記環状成形体のスロ
ット部分の上部に嵌合する板状成形体と、前記環状成形
体のスロット部に設けた巻線とからなり、全閉スロット
を形成した回転電機用環状鉄心である。The present invention provides an annular molded body made of a compression molded mixture of a mixture whose main components are a metal magnetic powder and an electrically insulating resin, and has a slot portion and a tooth portion, and a plate that fits into the upper part of the slot portion of the annular molded body. The present invention is an annular iron core for a rotating electric machine, which includes a shaped molded body and a winding provided in a slot portion of the annular molded body, and has a fully closed slot.
本発明を図を用いてさらに詳しく説明する。第１図は本
発明の回転電機用環状鉄心を示す斜視図でらる。混合物
の圧縮成形体からなりスロット部分４とティース部分３
を有する環状成形体１のスロット部分４の上部に嵌合す
る板状成形体５を接合し全閉スロットをもつ回転電機用
環状鉄心を構成したもので、巻線２はスロット部分上部
に板状成形体５を接合する以前にスロット部分に施しで
ある。The present invention will be explained in more detail using figures. FIG. 1 is a perspective view showing an annular core for a rotating electrical machine according to the present invention. Consisting of a compression molded product of a mixture, a slot portion 4 and a teeth portion 3
A plate-shaped molded body 5 that fits into the upper part of the slot part 4 of an annular molded body 1 having a This is applied to the slot portion before joining the molded body 5.
本発明に用いる金属磁性粉末としては、例えば純鉄の紛
、Ｆｅ−３８ｉで代表されるＦｅ−８ｉ合金粉、Ｆｅ
−ＡＪ合金粉、Ｆｅ−８ｉ−Ａ１合金粉、Ｆｅ −Ｎｉ
合金粉、Ｆｅ −Ｃｏ合金粉などを砧けることができ、
これらは各々単独でまたは適宜、組合せた粉末でも良い
。Examples of the metal magnetic powder used in the present invention include pure iron powder, Fe-8i alloy powder represented by Fe-38i, and Fe-8i alloy powder represented by Fe-38i.
-AJ alloy powder, Fe-8i-A1 alloy powder, Fe -Ni
Can handle alloy powder, Fe-Co alloy powder, etc.
These powders may be used alone or in an appropriate combination.
また本発明に使用される電気絶縁性の樹脂としては、上
記鉄粉または鉄合金磁性粉の表面を被覆して粉末相互間
を電気絶縁状態にし、て鉄心全体の交流磁化に対する渦
電流損が大きくならないように充分な電気抵抗値を付与
せしめると同時に、これら粉末を結着するバインダーと
しても機能するものである。このような樹脂としては、
例えばエポキン樹脂、ポリアミド樹脂、ポリイミド樹脂
、ポリエステル樹脂など各種の樹脂が挙られ、これらは
単独にまたは適宜組合せて使用しても良い。In addition, the electrically insulating resin used in the present invention coats the surface of the above-mentioned iron powder or iron alloy magnetic powder to electrically insulate the powders from each other, so that the eddy current loss due to AC magnetization of the entire iron core is large. It imparts a sufficient electrical resistance value to prevent this from occurring, and at the same time functions as a binder to bind these powders together. As such resin,
Examples include various resins such as Epoquine resin, polyamide resin, polyimide resin, and polyester resin, and these may be used alone or in appropriate combinations.
なお、この樹脂中には、予め無機化合物粉末を加えてお
くと、圧縮成形工程を経て、鉄心になったときの透磁率
、磁束密度が向上する。したがって本発明の中で記載し
ている樹脂とは、樹脂のみの場合だけでなく、樹脂中に
無機化合物粉末を加えたものも含む。この無機化合物粉
末は電気絶縁性の粉末で、たとえば、Ａノ！０３ 、８
ｉ０２ 、０ａ００Ｂガラスパウダー、マイカパウダー
などが挙げられこれらを適宜混合したものでも良い。Note that if an inorganic compound powder is added to this resin in advance, the magnetic permeability and magnetic flux density will be improved when the iron core is formed through the compression molding process. Therefore, the resin described in the present invention includes not only a resin alone but also a resin in which an inorganic compound powder is added. This inorganic compound powder is an electrically insulating powder, such as Ano! 03, 8
i02, 0a00B glass powder, mica powder, etc., and an appropriate mixture of these may also be used.
また金属磁性粉末と樹脂の混合比は、金属磁性粉末が相
互に絶縁され、また一体に結合されるため、樹脂が体積
比で１．５−１以上あることが望ましい。一方樹脂の混
合比が多くなると、鉄心としての磁束密度、透磁率が低
下してくる。そのため、スロット部分とティース部分を
持つ環状成形体においては、金属磁性粉が体積比で６０
％以上あることが望ましい。さらに、板状成形体のは、
いわゆる磁性楔となるため、環状成形体の透磁率より低
い透磁率値をとることが望ましい。したがって板状成形
体中の金属磁性粉末の体積比は環状成形体中の体積比よ
りも小さい方が、本発明の効果をよシ発揮し易く、一般
に磁性楔としての比透磁率は５０（ＳＩ単位で約６２．
５ μＨ／ｍ） 以下が望まれているため、その場合
の板状成形体中の金属磁性粉末は体積比で７０−以下が
望ましい。他方、＼金属磁性粉末が体積比で１０％未満
になると磁性楔としての必要特性も満足できなくなる。Further, the mixing ratio of the metal magnetic powder and the resin is preferably 1.5-1 or more by volume since the metal magnetic powders are mutually insulated and bonded together. On the other hand, as the mixing ratio of resin increases, the magnetic flux density and magnetic permeability of the iron core decrease. Therefore, in the annular molded body having slot portions and teeth portions, the volume ratio of metal magnetic powder is 60%.
% or more is desirable. Furthermore, the plate-shaped molded body is
Since it becomes a so-called magnetic wedge, it is desirable that the magnetic permeability value is lower than the magnetic permeability of the annular molded body. Therefore, the effect of the present invention is more easily exhibited when the volume ratio of the metal magnetic powder in the plate-shaped compact is smaller than that in the annular compact, and in general, the relative magnetic permeability as a magnetic wedge is 50 (SI Approximately 62.
5 .mu.H/m) or less, and therefore, the volume ratio of the metal magnetic powder in the plate-shaped compact in that case is preferably 70 or less. On the other hand, if the volume ratio of the metal magnetic powder is less than 10%, the properties required for a magnetic wedge cannot be satisfied.
したがって板状成形体中の金属磁性粉量は体積比で７０
％以下、１０チ以上が最も望ましい。Therefore, the amount of metal magnetic powder in the plate-shaped compact is 70% by volume.
% or less and 10 cm or more is most desirable.
次に本発明の環状鉄心を製造する方法について説明する
。Next, a method for manufacturing the annular core of the present invention will be explained.
先ず金属磁性粉末と電気絶縁性の樹脂を、前記の環状成
形体と板状成形体それぞれに望ましい混合比で十分に混
合する。次にこの混合物を金型に充填して工業的に容易
な１０００ ＭＰａ以下の圧力で圧縮成形する工程を経
て、第２図に斜視的に示すような環状成形体ｌと、第３
図に斜視的に示すような、板状成形体を作成する。この
第２図の環状成形体１は、スロット部分４とティース部
分３を有し、第３図の板状成形体の幅は、第２図のスロ
ット部分４の上部に嵌合する幅となっている。この環状
成形体のスロット部分を通して巻線を施した後、板状成
形体を環状成形体のスロット上部に嵌め、接合すること
によって、ｔａ１図に示すような回転電機用環状鉄心が
得られる。First, a metal magnetic powder and an electrically insulating resin are sufficiently mixed at a desired mixing ratio for each of the annular molded body and the plate-shaped molded body. Next, this mixture is filled into a mold and compression-molded at an industrially easy pressure of 1000 MPa or less, resulting in an annular molded body l as shown in perspective in FIG.
A plate-shaped molded body as shown in perspective in the figure is created. The annular molded body 1 in FIG. 2 has a slot portion 4 and a tooth portion 3, and the width of the plate-shaped molded body in FIG. 3 is such that it fits into the upper part of the slot portion 4 in FIG. ing. After winding is performed through the slot portion of this annular molded body, the plate-shaped molded body is fitted into the slot upper part of the annular molded body and joined, thereby obtaining a circular iron core for a rotating electric machine as shown in Fig. ta1.
なお、第２図、第３図に示したそれぞれの成形体は、接
合前或は接合後に必要に応じて３００°Ｃ以下の温度で
熱処理を行い樹脂の硬化等の処理を行なっても良い。ま
た、環状成形体と板状成形体の接合は、接着剤を用いる
方法の他に、成形体中の樹脂に熱可塑性樹脂を用い、環
状成形体のス党ット部に板状成形体を嵌めた後、熱処理
を施すことによって接合面に存在する樹脂が接着剤とし
て働き、接合することも可能でらる〇
また、環状成形体としては第２図の形状だけでなく例え
ば第４因ｖｃ環状成形体の部分斜視図を示し、た如く構
成してもよい。この成形体では、ティース部３の上部に
段６を設け、板状成形体が丁度ティース部の段６に嵌ま
った形で、スロット部２を閉じる構造となっている。こ
のティース部分、スロット部分と板状成形体の構成の部
分側面図を第５図に示す。第５図で環状成形体ｌは、そ
のティース部３゛に段６をもち、その段の部分に板状成
形体５が嵌まって接合され、スロット部分４を閉じた回
転電機用環状鉄心となっている。Note that each of the molded bodies shown in FIGS. 2 and 3 may be heat treated at a temperature of 300° C. or lower to harden the resin, etc., as necessary before or after bonding. In addition to the method of joining the annular molded body and the plate-shaped molded body, in addition to the method of using adhesive, thermoplastic resin is used as the resin in the molded body, and the plate-shaped molded body is attached to the slit part of the annular molded body. After fitting, by applying heat treatment, the resin present on the joint surface acts as an adhesive, and it is possible to join.In addition, as an annular molded product, not only the shape shown in Figure 2 but also the shape of 1 shows a partial perspective view of an annular molded body, which may be constructed as such. This molded body has a structure in which a step 6 is provided on the upper part of the teeth portion 3, and the slot portion 2 is closed with the plate-shaped molded object just fitting into the step 6 of the teeth portion. A partial side view of the configuration of the teeth portion, slot portion, and plate-shaped molded body is shown in FIG. In FIG. 5, the annular molded body 1 has a step 6 on its teeth 3', and a plate-like molded object 5 is fitted and joined to the step, and the slot portion 4 is closed. It has become.
以上説明した如く、本発明に係る環状鉄心によれば、可
聴周波数の周波数成分をもつ交流で駆動されるＡＡＧモ
ータ、なかでも商用周波数より高い周波数で駆動される
高速ＡＡＧモータや、商用周波数より高い可聴周波数成
分をもりＰＷＭ制−等のＶＶＶＦ電源によって駆動され
る可変速のＡＡＧモータに使用される場合、更にはパル
ス駆動のア。As explained above, the annular iron core according to the present invention can be used for AAG motors driven by alternating current having frequency components of audible frequencies, especially high-speed AAG motors driven at frequencies higher than commercial frequencies, and When used in a variable speed AAG motor driven by a VVVF power supply such as a PWM control with an audible frequency component, a pulse drive motor may be used.
キシャルエアギャップのステップモータの電機子に使用
した場合、従来の電磁鋼板の鉄心に比べ騒音を大幅に低
下させることができる。更に本発明によれば、通常１回
の圧縮成形では得られない全閉スロットの電機子が容易
に成形できるため巻線の固定が容易でらる上ス四ットリ
ップル損も小さくすることができる。また本発明の環状
鉄心は、金属磁性粉末と電気絶縁性樹脂との混合物の圧
縮成形体でろるので、板厚がＯ，＝３〜０．５ｍの電磁
鋼板より高周波での渦電流損失も少な（、ＰＷＭ制御等
に対する損失の面でも有利でらるなど顕著な効果を有す
るものでらる。When used in the armature of a axial air gap step motor, noise can be significantly reduced compared to conventional magnetic steel cores. Furthermore, according to the present invention, it is possible to easily form an armature with a fully closed slot, which cannot normally be obtained by one compression molding process, so that it is possible to easily fix the windings and to reduce ripple loss in the upper quadruple. In addition, since the annular core of the present invention is made of a compression molded product of a mixture of metal magnetic powder and electrically insulating resin, the eddy current loss at high frequencies is lower than that of an electromagnetic steel sheet with a thickness of O, = 3 to 0.5 m. (It has remarkable effects such as being advantageous in terms of loss for PWM control etc.).
実施例１
平均粒径１２０μｍの純鉄粉と、半硬化エポキシ樹脂粉
末を体積比で９８：２に混合した混合物を金型に充填し
、６００ＭＰａの圧力で圧縮成形を行い、第２図に示す
現状の環状成形体を作成した。一方平均粒径１２０μｍ
の純鉄粉と半硬化エポキシ樹脂粉末を体積比で４０：６
０ ｖｃ混合した混合物を、環状成形体とは別の金型に
充填し、５００ＭＰａの圧力で圧縮成形し、第３図に示
す形状の板状成形体を作成した。次いで、これら２種類
の成形体に２００°０１時間の熱処理を施して、半硬化
エポキシ樹脂の硬化処理を行なった。Example 1 A mixture of pure iron powder with an average particle size of 120 μm and semi-hardened epoxy resin powder mixed at a volume ratio of 98:2 was filled into a mold, and compression molding was performed at a pressure of 600 MPa, as shown in Figure 2. The current annular molded body was created. On the other hand, the average particle size is 120μm
pure iron powder and semi-hardened epoxy resin powder in a volume ratio of 40:6
The 0 vc mixture was filled into a mold separate from the annular molded body, and compression molded at a pressure of 500 MPa to produce a plate-shaped molded body having the shape shown in FIG. Next, these two types of molded bodies were heat-treated at 200°C for 1 hour to cure the semi-cured epoxy resin.
熱処理の後、第２図に示した形状の環状成形体１のスロ
ット部分２ｖｃＩＩｋＩＩを施し、次いで第３図に示し
た形状の板状成形体を１！２図の環状成形体のスロット
部分上部において、ティース部分３にエポキシ系接着剤
で接着し、巻線を固定すると同時に全閉スロットを形成
し、回転電機用環状鉄心を得た。After the heat treatment, the slot portion 2vcIIkII of the annular molded body 1 having the shape shown in FIG. 2 is applied, and then the plate-shaped molded product having the shape shown in FIG. , was adhered to the teeth portion 3 with epoxy adhesive to fix the winding and at the same time form a fully closed slot to obtain an annular core for a rotating electric machine.
次に、この回転電機用環状鉄心を電機子として用い半硬
質磁石製の回転子と組み合わせて、４極で２１６０Ｏｒ
、ｐ、ｍ、時ｚｏｏｗｏ定格出力の得うレルアキシャル
エアギャップ型のヒステリシスシンクロナスモータを組
立てた。これを実施例１とする。Next, this annular iron core for a rotating electrical machine was used as an armature and combined with a rotor made of semi-hard magnets to form a 4-pole 2160 Or
A parallel axial air gap type hysteresis synchronous motor that provides a rated output of , p, m, and hours was assembled. This is referred to as Example 1.
また比較のため、第７図に示すような、厚み０．３５１
１ｊｌの電磁鋼板を巻回して作成した環状鉄心を用い、
第６図に示すような電機子を作成して、実施例１と同一
定格仕様のアキシャルエアギャップ型ヒステリンスシン
クロナスモータヲ組立てた。For comparison, as shown in Figure 7, the thickness is 0.351.
Using an annular core made by winding 1jl of electromagnetic steel plate,
An armature as shown in FIG. 6 was prepared, and an axial air gap type hysteresis synchronous motor having the same rating specifications as in Example 1 was assembled.
これを比較例１とする。なお、回転子も実施例１と同一
仕様である。This is referred to as Comparative Example 1. Note that the rotor also has the same specifications as in the first embodiment.
これら実施例１と、比較例１のモータを定格回転数、定
格出力で運転した結果、電機子の可聴周波数帯における
騒音は、実施例１の方が比較例１よりも約６ｄｂ低下し
ていることが確認できた。As a result of operating the motors of Example 1 and Comparative Example 1 at the rated rotation speed and rated output, the noise in the audible frequency band of the armature was approximately 6 db lower in Example 1 than in Comparative Example 1. This was confirmed.
なおこの運転にはＰＷＭ制御のｖｖｖｉ；” ｚ源を用
いた。Note that a PWM-controlled vvvi;''z source was used for this operation.
実施例２
平均粒径７０μｍのＦｅ −１％８ｉ合金粉を金属磁性
粉として用い、樹脂としては、平均粒径２μｍの８ｉ０
１微粉末が樹脂全体積中に体積比で２５％混合しである
半硬化エポキシ樹脂粉末を用いた。この金属磁性粉と樹
脂が体積比で９５＝５および６５：３５ の混合物を
作り、９５：ｌｓの混合物で＠２図に示した形状の環状
成形体を作り、他方５０：５０’の混合物で第３図に示
した。形状の板状成形体を作成し、た。それぞれの成形
圧力はいずれも７００ＭＰａでらる。これら２種類の形
状の成形体に２００’０１時間の熱処理を施゛した後′
、実施例１と同様な手順で１巻線と環状および板状成形
体の接合を行い、電機子巻線を有゛する回転電機用環状
鉄心とした。これを電機子として、実施例１と同一仕様
のヒスラリメスシンクロナスモータを組立てた。これを
実施例２とする。Example 2 Fe-1%8i alloy powder with an average particle size of 70 μm was used as the metal magnetic powder, and 8i0 with an average particle size of 2 μm was used as the resin.
A semi-hardened epoxy resin powder was used in which 25% by volume of the fine powder was mixed in the total volume of the resin. Mixtures of this metal magnetic powder and resin with a volume ratio of 95=5 and 65:35 are made, and a mixture of 95:ls makes an annular molded body having the shape shown in Figure 2, while a mixture of 50:50' It is shown in Figure 3. A plate-shaped molded body of the shape was created. The molding pressure for each is 700 MPa. After applying heat treatment to these two types of shaped bodies for 200'01 hours'
The first winding and the annular and plate-shaped molded bodies were joined in the same manner as in Example 1 to obtain a circular iron core for a rotating electric machine having an armature winding. Using this as an armature, a Hisralime female synchronous motor with the same specifications as in Example 1 was assembled. This is referred to as Example 2.
実施例２のモータを定格回転数、定格出力で運転した結
果、電機子の可聴周波数における騒音は比較例１のそれ
よりも約７ｄｂ低下することが確認できた。As a result of operating the motor of Example 2 at the rated rotation speed and rated output, it was confirmed that the noise at the audible frequency of the armature was lower than that of Comparative Example 1 by about 7 db.
実施例３
平均粒径１５０μｍの純鉄粉とボリアノド樹脂を体積比
で８８：１２ Ｋ混合し、これを金型で７００ＭＰａの
圧力“で圧縮成形し、て第４図に示す形状の環状成形体
とした。一方、板状成形体は１、平均粒径５６μｍのＦ
ｅ −３Ｔｏ Ｓｉ合金粉とポリアミド樹脂を体積比で
６５ ： ３５に混合したものを４’００ＭＰａで圧縮
成形して作成し、た。Example 3 Pure iron powder with an average particle size of 150 μm and borianod resin were mixed at a volume ratio of 88:12 K, and this was compression molded in a mold at a pressure of 700 MPa to form an annular molded body having the shape shown in Fig. 4. On the other hand, the plate-shaped molded body was made of F with an average particle size of 56 μm.
It was prepared by compression molding a mixture of e-3To Si alloy powder and polyamide resin at a volume ratio of 65:35 at 4'00 MPa.
次いで環状成形体に電機子用巻線を施した後、板状成形
体を第４図に示した環状成形体のティース部の段に嵌め
、熱処理を施し、て一体に接合し、第５図に部分側面図
を示す回転電機用環状鉄心を得た。なお第５図では電機
子巻線は省略しである。Next, after winding for an armature is applied to the annular molded body, the plate-shaped molded body is fitted into the steps of the teeth part of the annular molded body shown in FIG. 4, heat-treated, and joined together. An annular core for a rotating electrical machine, whose partial side view is shown in Figure 2, was obtained. Note that the armature winding is omitted in FIG.
この環状鉄心を電機子として、実施例１と同一仕様のヒ
ステリシスシンクロナ、スモータを組立てた。Using this annular core as an armature, a hysteresis synchronizer and motor having the same specifications as in Example 1 were assembled.
これを実施例３とする。This is referred to as Example 3.
実施例３のモータを定・略同転数、定格出力で運転した
結果、可聴周波数における電機子騒音は比較例１のそれ
よりも約６ｄｂ低下することが確認でき”た。As a result of operating the motor of Example 3 at a constant/substantially constant rotation speed and rated output, it was confirmed that the armature noise at an audible frequency was approximately 6 db lower than that of Comparative Example 1.
ＩＩＩ図は本発明に係る回転電機□用環状鉄心によるＡ
ＡＧモータの電機子の暑視３図、第２図は本発明に用い
る環状成形体の斜視図、□第３図は本発明に用いる板状
成形体の斜視図、第４図は本発明に用いる還状酸形体の
部分斜視図、第５図は第４図の部分側面図、第６図及び
第７図は従来の環状鉄心を示す斜視図。
ｌ・・・環状成形体 ２・・巻線３・・ティース
部分 ４・・・スロット部分５・・・板状成形体
代理人 弁理士 則 近 憲 佑 （ほか１名）第
１ 図Figure III shows A using the annular iron core for rotating electric machine
Figure 3 is a hot view of the armature of an AG motor, Figure 2 is a perspective view of an annular molded body used in the present invention, □ Figure 3 is a perspective view of a plate-shaped molded body used in the present invention, and Figure 4 is a perspective view of a plate-shaped molded body used in the present invention. FIG. 5 is a partial side view of FIG. 4, and FIGS. 6 and 7 are perspective views of a conventional annular core. l...Annular molded body 2...Winding 3...Teeth part 4...Slot part 5...Plat-shaped molded body Agent Patent attorney Noriyuki Chika (and 1 other person) No.
1 figure
Claims (1)
合物の圧縮成形体からなりスロット部分およびテイース
部分を有する環状成形体と、前記環状成形体のスロット
部分の上部に嵌合する板状成形体と、前記環状成形体の
スロット部に設けた巻線とからなり全閉スロットを形成
したことを特徴とする回転電機用環状鉄心。 ２）環状成形体中の金属磁性粉末の体積比よりも、板状
成形体中の金属磁性粉末の体積比を小さくしたことを特
徴とする特許請求の範囲第１項記載の回転電機用環状鉄
心。 ３）板状成形体中の金属磁性粉末が体積比で成形体中の
７０％以下１０％以上であることを特徴とする特許請求
の範囲第１項又は第２項記載の回転電機用環状鉄心。[Scope of Claims] 1) An annular molded body made of a compression molded mixture of a mixture whose main components are a metal magnetic powder and an electrically insulating resin and has a slot portion and a teeth portion, and an upper part of the slot portion of the annular molded body. 1. An annular iron core for a rotating electric machine, comprising a plate-shaped molded body that fits into the annular molded body, and a winding provided in a slot portion of the annular molded body, forming a fully closed slot. 2) An annular iron core for a rotating electrical machine according to claim 1, characterized in that the volume ratio of the metal magnetic powder in the plate-shaped compact is smaller than the volume ratio of the metal magnetic powder in the annular compact. . 3) An annular iron core for a rotating electric machine according to claim 1 or 2, wherein the metal magnetic powder in the plate-shaped compact is 70% or less and 10% or more of the compact by volume. .
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27170684A JPS61150628A (en) | 1984-12-25 | 1984-12-25 | Ring core for rotary electric machine |
| US06/781,886 US4719377A (en) | 1984-09-29 | 1985-09-30 | Armature annular core |
| EP85306976A EP0180330B1 (en) | 1984-09-29 | 1985-09-30 | Armature annular core |
| DE8585306976T DE3574311D1 (en) | 1984-09-29 | 1985-09-30 | Armature annular core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27170684A JPS61150628A (en) | 1984-12-25 | 1984-12-25 | Ring core for rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61150628A true JPS61150628A (en) | 1986-07-09 |
Family
ID=17503706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27170684A Pending JPS61150628A (en) | 1984-09-29 | 1984-12-25 | Ring core for rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61150628A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03203536A (en) * | 1989-09-22 | 1991-09-05 | General Motors Corp <Gm> | Stator assembly for ac current generator |
| WO1999008363A1 (en) * | 1997-08-06 | 1999-02-18 | Shurflo Pump Manufacturing Co. | Dynamo electric machines and stators for use in same |
| US6034465A (en) * | 1997-08-06 | 2000-03-07 | Shurfle Pump Manufacturing Co. | Pump driven by brushless motor |
| JP2006230176A (en) * | 2005-02-14 | 2006-08-31 | Dahlia Technology Corp | Structure of motor |
| JP2007060747A (en) * | 2005-08-22 | 2007-03-08 | Sumitomo Electric Ind Ltd | Superconducting motor and vehicle equipped with that motor |
-
1984
- 1984-12-25 JP JP27170684A patent/JPS61150628A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03203536A (en) * | 1989-09-22 | 1991-09-05 | General Motors Corp <Gm> | Stator assembly for ac current generator |
| WO1999008363A1 (en) * | 1997-08-06 | 1999-02-18 | Shurflo Pump Manufacturing Co. | Dynamo electric machines and stators for use in same |
| US6034465A (en) * | 1997-08-06 | 2000-03-07 | Shurfle Pump Manufacturing Co. | Pump driven by brushless motor |
| US6132186A (en) * | 1997-08-06 | 2000-10-17 | Shurflo Pump Manufacturing Co. | Impeller pump driven by a dynamo electric machine having a stator comprised of a mass of metal particles |
| US6347929B1 (en) | 1997-08-06 | 2002-02-19 | David J. Cooper | Dynamo electric machines and stators for use in same |
| US6776590B2 (en) | 1997-08-06 | 2004-08-17 | Shurflo Pump Manufacturing Company, Inc. | Dynamo electric machines and stators for use in same |
| JP2006230176A (en) * | 2005-02-14 | 2006-08-31 | Dahlia Technology Corp | Structure of motor |
| JP2007060747A (en) * | 2005-08-22 | 2007-03-08 | Sumitomo Electric Ind Ltd | Superconducting motor and vehicle equipped with that motor |
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