JP2003164087A - Stator of permanent magnet generator - Google Patents
Stator of permanent magnet generatorInfo
- Publication number
- JP2003164087A JP2003164087A JP2001359991A JP2001359991A JP2003164087A JP 2003164087 A JP2003164087 A JP 2003164087A JP 2001359991 A JP2001359991 A JP 2001359991A JP 2001359991 A JP2001359991 A JP 2001359991A JP 2003164087 A JP2003164087 A JP 2003164087A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- turns
- generator
- magnetic pole
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 94
- 238000010248 power generation Methods 0.000 claims abstract description 14
- 230000018199 S phase Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910001219 R-phase Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Windings For Motors And Generators (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動二輪車、バギ
ー車、雪上車などのエンジンに装着され、搭載バッテリ
の充電や電気機器への電力供給に使用される磁石式発電
機のステータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator of a magnetic generator mounted on an engine of a motorcycle, a buggy vehicle, a snow vehicle or the like and used for charging an on-board battery or supplying electric power to electric equipment.
【０００２】[0002]
【従来の技術】この種の磁石式発電機のステータは、多
数の突極部を円周上に突設した星形のステータコアの各
突極部に、発電コイルを巻装して構成される。ステータ
コアの突極部に巻装される発電コイルは、一般に巻線機
によって巻装され、個々の突極部に同じ巻数の線材が巻
回される。このときの線材の巻数は、ステータの磁極
数、ステータコアの外径、突極部の巻幅等と共に発電機
の起電力の大きさを左右する要因となるものであり、設
計時に目標とする発電機の起電力とステータコアに物理
的に巻装可能な要件に基づき、計算により最適な巻数が
決定される。2. Description of the Related Art A stator of this type of magnetic generator is constructed by winding a generator coil around each salient pole portion of a star-shaped stator core having a large number of salient pole portions projecting on the circumference. . The generator coil wound around the salient pole portion of the stator core is generally wound by a winding machine, and the wire rod having the same number of turns is wound around each salient pole portion. The number of windings of the wire at this time is a factor that influences the magnitude of the electromotive force of the generator together with the number of magnetic poles of the stator, the outer diameter of the stator core, the winding width of the salient poles, etc. The optimum number of turns is calculated by calculation based on the electromotive force of the machine and the requirement of being physically wound around the stator core.
【０００３】[0003]
【発明が解決しようとする課題】ところで、このような
磁石式発電機のステータにおいて、既存のステータコア
を使用しながら、磁極部に巻装する発電コイルの巻数を
増加して起電力を上げたい場合、或いは目標とする起電
力を得たい場合がある。このような場合、各磁極部の周
囲に発電コイルを巻き足す間隙があれば、各磁極部には
加算した巻数の発電コイルを巻装することができる。By the way, in the stator of such a magnet type generator, it is desired to increase the electromotive force by increasing the number of windings of the generating coil wound around the magnetic pole portion while using the existing stator core. Or, there is a case where it is desired to obtain a target electromotive force. In such a case, if there is a gap around each magnetic pole to wind the magneto coils, the magneto coils having the added number of turns can be wound around each magnetic pole.
【０００４】しかし、ステータの磁極数が多く、隣接す
る磁極部間（ステータコアの突極部間）の間隙が狭い場
合は、物理的に巻装可能な巻数が制限される。つまり、
図４に示すように、ステータコアの各磁極の突極部２０
に、巻線機により線材が根元部から巻回されていくが、
隣接する各突極部２０間の空間は、逆台形状を呈してい
るので、線材を巻回していく過程で、根元部の周囲には
空間があるにも関わらず、突極部２０の中間部で隣の発
電コイル２と干渉して、線材を根元部まで挿入できなく
なる。つまり、各突極部においては、中間部より先端側
の突極部２０の巻装部に線材が巻かれ、根元部の周囲に
は空間があるにも関わらず、隣接する磁極部の両発電コ
イル２の隙間Ｃが線材の外径より少なくなった時点で、
コイルを巻くことができず、巻装の限界が生じる。However, when the number of magnetic poles of the stator is large and the gap between adjacent magnetic pole portions (between the salient pole portions of the stator core) is narrow, the number of windings that can be physically wound is limited. That is,
As shown in FIG. 4, the salient pole portion 20 of each magnetic pole of the stator core
Then, the wire is wound from the root part by the winding machine,
Since the space between the adjacent salient pole portions 20 has an inverted trapezoidal shape, in the process of winding the wire rod, there is a space around the root portion, but the space between the salient pole portions 20 is intermediate. It interferes with the adjacent power generation coil 2 at a part, and the wire cannot be inserted to the base part. That is, in each salient pole portion, the wire is wound around the winding portion of the salient pole portion 20 on the tip side of the intermediate portion, and although there is a space around the root portion, both power generations of the adjacent magnetic pole portions are generated. When the clearance C of the coil 2 becomes smaller than the outer diameter of the wire,
The coil cannot be wound, and the winding limit occurs.
【０００５】一方、発電機の小型化の要請から、所定の
起電力を維持しながらステータの形状を小型化したい場
合があるが、ステータコアの外径寸法を縮小しつつ従前
の起電力を維持するためには、発電コイルの巻数を増大
させる必要が生じる。しかし、発電コイルの線材径はそ
のままで、巻数を増大させると、必然的に各磁極部の巻
装外径が増大し、隣接する磁極部の発電コイルと発電コ
イルとの間隙が線材径より狭くなって、巻線機による巻
線作業ができなくなる問題があった。On the other hand, there is a case where it is desired to miniaturize the shape of the stator while maintaining a predetermined electromotive force due to the demand for miniaturization of the generator. However, the former electromotive force is maintained while reducing the outer diameter dimension of the stator core. Therefore, it is necessary to increase the number of turns of the power generating coil. However, if the number of turns is increased while keeping the wire diameter of the power generation coil unchanged, the winding outer diameter of each magnetic pole portion inevitably increases, and the gap between the power generation coil and the power generation coil of the adjacent magnetic pole portion is narrower than the wire diameter. Then, there is a problem that the winding work cannot be performed by the winding machine.
【０００６】本発明は、上述の課題を解決するものであ
り、同じ形状大きさのステータコアを使用した場合で
も、磁極部間の隙間に多くの巻数の発電コイルを効果的
に巻装して、より設計自由度の高い出力を得ることがで
きる磁石式発電機のステータを提供することを目的とす
る。The present invention solves the above-mentioned problems, and even when the stator cores of the same shape and size are used, a large number of turns of the magneto coils are effectively wound in the gaps between the magnetic pole portions, An object of the present invention is to provide a stator of a magnet type generator that can obtain an output with a higher degree of freedom in design.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、本発明の磁石式発電機のステータは、リング状の継
鉄部の外周に複数の突極部が突設されたステータコア
と、ステータコアの各突極部に巻装された発電コイル
と、を有し、各突極部に発電コイルを巻装してなる偶数
個の磁極部が円周上に所定の角度間隔で配置された磁石
式発電機のステータにおいて、円周上に配置された複数
の磁極部が、発電コイルを基本の巻数だけ巻装した基本
巻数部と、基本巻数部の巻数より多く巻装した加算巻数
部とを交互に配置して形成されたことを特徴とする。In order to achieve the above object, a stator of a magnet type generator of the present invention comprises a stator core having a plurality of salient pole portions projecting from the outer periphery of a ring-shaped yoke portion, An even number of magnetic poles, each of which has a generator coil wound around each salient pole portion of the stator core and is formed by winding a power generation coil around each salient pole portion, is arranged at a predetermined angular interval on the circumference. In the stator of the magnet type generator, a plurality of magnetic pole portions arranged on the circumference include a basic winding number portion in which the generator coil is wound by a basic number of windings, and an additional winding number portion in which more windings than the basic winding number are wound. Are alternately arranged.
【０００８】ここで、隣接する1対の磁極部の発電コイ
ルの間隙は、少なくとも発電コイルの線材の太さより広
く形成し、加算巻数部における基本巻数部より多く巻装
する部分を、突極部の根元部分に巻装することができ
る。このようにすれば、各磁極部間の隙間に巻線機を用
いて巻線を行うことができ、隣接する磁極部のコイルの
干渉を防止して、発電機の起電力を向上させることがで
きる。Here, the gap between the magneto coils of the pair of adjacent magnetic pole parts is formed to be at least wider than the thickness of the wire rod of the magneto coil, and the salient pole part is formed by winding more parts than the basic turns part of the additional turns part. Can be wrapped around the root of the. By doing so, it is possible to perform the winding using the winding machine in the gap between the magnetic poles, prevent the interference of the coils of the adjacent magnetic poles, and improve the electromotive force of the generator. it can.
【０００９】[0009]
【作用】上記構成の磁石式発電機のステータでは、例え
ば三相出力の発電機の場合、磁極部は３の倍数個設けら
れ、発電コイルは三相交流用に３相に分けて磁極部に巻
装されるが、各々順に円周方向に基本巻数部と加算巻数
部を繰り返すように巻装する。このように発電コイルを
巻装すれば、従来各突極部間に生じていた隙間に効果的
に発電コイルをより多く巻装することができ、さらに各
相における総巻数は同一となり、正常に三相交流を発電
を行うことができる。このステータは、例えばエンジン
のケーシング内の固定部に、リング状の継鉄部を介して
固定され、その外周に、クランク軸に固定されたロータ
が僅かな隙間を介して回転可能に配設される。In the stator of the magneto-generator having the above structure, for example, in the case of a three-phase output generator, the magnetic pole portions are provided in multiples of three, and the generator coil is divided into three phases for three-phase alternating current and the magnetic pole portions are divided into three magnetic pole portions. The winding is performed by sequentially winding the basic winding number part and the additional winding number part in the circumferential direction. By winding the power generating coil in this manner, it is possible to effectively wind more power generating coil in the gap that has conventionally been generated between the salient pole portions, and further, the total number of windings in each phase becomes the same, and the normal winding is performed normally. It can generate three-phase alternating current. This stator is fixed to, for example, a fixed portion in a casing of an engine via a ring-shaped yoke portion, and a rotor fixed to a crankshaft is rotatably disposed on the outer periphery thereof with a slight gap. It
【００１０】エンジンの運転に伴い、ロータが回転し、
ステータの外周部を複数に分割されたロータの永久磁石
が回転することにより、ステータの各磁極部に巻装され
た発電コイルに起電力が発生し、発電が行われる。As the engine runs, the rotor rotates,
Rotation of the permanent magnet of the rotor, which is formed by dividing the outer peripheral portion of the stator into a plurality of pieces, causes electromotive force to be generated in the power generation coil wound around each magnetic pole portion of the stator to generate power.
【００１１】発電コイルで発生した電流は、ワイヤハー
ネスを通して、外部に取り出されるが、発電コイルの巻
数は、隣接する磁極部の一方の磁極の巻数が、通常の巻
数より加算した巻数のコイルを巻装しているから、従来
の同様な形状大きさのステータコアに巻装されたものよ
り、磁極部の発電コイルの総巻数は増加する。磁石式発
電機の起電力は、基本的には発電コイルの総巻数に比例
するから、従来の全て同じ基本巻数の磁極部を持つステ
ータの発電機より、高い出力を得ることができる。The current generated in the generator coil is taken out through the wire harness to the outside. Regarding the number of turns of the generator coil, the number of turns of one of the magnetic poles of the adjacent magnetic poles is larger than the usual number of turns. Since it is mounted, the total number of windings of the magneto coils of the magnetic pole portion is larger than that of the conventional one wound around the stator core having the same shape and size. Since the electromotive force of the magnet type generator is basically proportional to the total number of turns of the generating coil, it is possible to obtain a higher output than the conventional generator of the stator having the magnetic pole portions with the same basic number of turns.
【００１２】また、既存のステータコアの突極部の根元
部に生じた隙間に、加算分のコイルを巻装するのみであ
るため、既存のステータコアを使用して、簡単に高出力
の発電機を製作することができる。Further, since the additional coil is only wound in the gap formed at the base of the salient pole portion of the existing stator core, the existing stator core can be used to easily form a high-power generator. Can be manufactured.
【００１３】さらに、この磁石式発電機の出力電流特性
は、各磁極部の発電コイルの巻数を同じように基本巻数
とした従来の発電機の出力電流特性に比べ、低速回転域
での電流値が増大し、高速回転域での電流値の上昇が抑
制される傾向を示す。Further, the output current characteristic of this magnet type generator has a current value in the low speed rotation range as compared with the output current characteristic of the conventional generator in which the number of turns of the generator coil of each magnetic pole portion is the same as the basic number of turns. Increases, and the increase in current value in the high-speed rotation range tends to be suppressed.
【００１４】このため、この磁石式発電機を自動二輪車
等のエンジンに装着して使用した場合、低速回転域つま
りアイドル回転時の出力電流を従来より高めて、エンジ
ンのアイドル時の給電能力やバッテリー充電能力を向上
させるこができる。また、高速回転域における電流の上
昇を抑えるから、充電回路、定電圧制御回路などの回路
部品の電流容量の縮小化が可能となり、発電機に接続さ
れるレギュレータ回路などを簡素化することができる。For this reason, when this magnet type generator is mounted on an engine of a motorcycle or the like and used, the output current in the low speed range, that is, in the idling speed is increased more than before, and the power supply capacity and the battery in the idling state of the engine and the battery are increased. You can improve the charging ability. Further, since the rise of the current in the high speed rotation range is suppressed, the current capacity of the circuit components such as the charging circuit and the constant voltage control circuit can be reduced, and the regulator circuit connected to the generator can be simplified. .
【００１５】[0015]
【発明の実施の形態】以下、本発明の一実施形態を図面
に基づいて説明する。図１は磁石式発電機のステータの
正面図を示している。ステータは、星形に形成されたス
テータコア１の各突極部１２に、発電コイル２を巻装し
て構成される。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of a stator of a magnet type generator. The stator is configured by winding a magneto coil 2 around each salient pole portion 12 of a stator core 1 formed in a star shape.
【００１６】発電コイル２を巻装するステータコア１
は、中央に円形の開口部を有するリング状の継鉄部１１
の外周に、複数の突極部１２を（ここでは１８個の突極
部１２を）２０度の間隔で放射状に突設して形成され
る。また、ステータコア１は星形形状に打ち抜いた複数
の鋼板を積層し、リベット１４によりそれらを一体に固
定して形成される。各突極部１２の先端の周方向側及び
前後側には、フランジ部が形成され、各突極部１２に巻
装した発電コイル２をフランジ部で保持している。A stator core 1 around which a magneto coil 2 is wound
Is a ring-shaped yoke portion 11 having a circular opening in the center.
A plurality of salient pole portions 12 (in this case, 18 salient pole portions 12) are radially formed to protrude at an interval of 20 degrees. Further, the stator core 1 is formed by stacking a plurality of steel plates punched in a star shape and fixing them integrally with a rivet 14. Flange portions are formed on the circumferential side and front and rear sides of the tip of each salient pole portion 12, and the power generating coil 2 wound around each salient pole portion 12 is held by the flange portion.
【００１７】中央部のリング状の継鉄部１１には、エン
ジンケーシング等の固定部に固定するための固定孔１３
が穿設され、リベット１４もこの継鉄部１１に穿設した
貫通孔に挿通され、かしめ固定される。The ring-shaped yoke portion 11 at the center has a fixing hole 13 for fixing to a fixed portion such as an engine casing.
The rivet 14 is also inserted into the through hole formed in the yoke portion 11 and fixed by caulking.
【００１８】ステータコア１の各突極部１２には発電コ
イル２が巻装されて、1８個の磁極部３が円周上に形成
されるが、図２に示すように、1８個の磁極部３は、発
電コイル２を基本の巻数だけ巻装した基本巻数部３１
と、基本巻数部３１の巻数より多く巻装した加算巻数部
３２とを交互に配置して構成される。A generator coil 2 is wound around each salient pole portion 12 of the stator core 1 to form 18 magnetic pole portions 3 on the circumference. As shown in FIG. 2, there are 18 magnetic pole portions. 3 is a basic winding number portion 31 in which the magneto coils 2 are wound by the basic number of windings.
And an additional winding number section 32 wound more than the basic winding number section 31 are alternately arranged.
【００１９】これらの磁極部３には三相交流用の発電コ
イル２が巻装され、図２に示すように、Ｒ相の発電コイ
ル２は、磁極部Ｒ１、磁極部Ｒ２、磁極部Ｒ３、磁極部
Ｒ４、磁極部Ｒ５、磁極部Ｒ６に順に巻装され、Ｓ相の
発電コイル２は、磁極部Ｓ１、磁極部Ｓ２、磁極部Ｓ
３、磁極部Ｓ４、磁極部Ｓ５、磁極部Ｓ６に順に巻装さ
れ、また、Ｔ相の発電コイル２は、磁極部Ｔ１、磁極部
Ｔ２、磁極部Ｔ３、磁極部Ｔ４、磁極部Ｔ５、磁極部Ｔ
６に順に巻装される。A three-phase alternating current generating coil 2 is wound around these magnetic pole portions 3, and as shown in FIG. 2, the R-phase generating coil 2 includes a magnetic pole portion R1, a magnetic pole portion R2, and a magnetic pole portion R3. The S-phase generator coil 2 is wound around the magnetic pole portion R4, the magnetic pole portion R5, and the magnetic pole portion R6 in this order, and includes the magnetic pole portion S1, the magnetic pole portion S2, and the magnetic pole portion S.
3, the magnetic pole portion S4, the magnetic pole portion S5, and the magnetic pole portion S6 are sequentially wound, and the T-phase power generation coil 2 includes the magnetic pole portion T1, the magnetic pole portion T2, the magnetic pole portion T3, the magnetic pole portion T4, the magnetic pole portion T5, and the magnetic pole portion T5. Department T
6 is wound in order.
【００２０】各磁極部３に巻装する際、発電コイル２の
巻数は隣接する各磁極部３において、一方の基本巻数部
３１がＮ回で巻装され、他方の加算巻数部３２にはその
基本巻数Ｎに加算巻数ｎを加算した巻数（Ｎ＋ｎ）のコ
イルが巻装される。つまり、１８極の磁極部には円周方
向に巻数Ｎの基本巻数部３１とそれに加算巻数ｎを加算
した巻数（Ｎ＋ｎ）の加算巻数部３２が交互に並ぶよう
に巻装されることになる。When wound around each magnetic pole portion 3, one basic winding portion 31 is wound N times in each adjacent magnetic pole portion 3 and the other additional winding portion 32 is wound in that number. The number of windings (N + n) obtained by adding the number of additional windings n to the number of basic windings N is wound. That is, the 18-pole magnetic pole portion is wound in the circumferential direction so that the basic winding number portion 31 of the winding number N and the additional winding number portion 32 of the number of turns (N + n) obtained by adding the additional winding number n are alternately arranged. .
【００２１】このような各磁極部３への発電コイル２の
巻装は、巻線機を用いて行われるが、１８極の突極部１
２が２０度の間隔で放射状に形成されるステータコアで
は、隣接する突極部１２の間隔が狭いため、線材は突極
部１２の根元部から巻回を開始し、その中間部より先端
側に重ね巻きをするように巻装する。突極部間の空間形
状が逆台形状となっているので、突極部１２の根元部に
は多くの線材を巻回することができず、基本巻数部３１
は中間部より先端側に線材を巻装することになる。The winding coil is wound around each magnetic pole portion 3 by using a winding machine, and the salient pole portion 1 has 18 poles.
In the stator core in which 2 is formed radially at intervals of 20 degrees, since the interval between the adjacent salient pole portions 12 is narrow, the wire starts winding from the root portion of the salient pole portion 12 and extends from the intermediate portion to the tip side. Wind it up so that it will be wound in layers. Since the space shape between the salient pole portions is an inverted trapezoidal shape, many wire rods cannot be wound around the root portion of the salient pole portion 12, and the basic winding number portion 31
Will wind the wire rod from the middle part to the tip side.
【００２２】したがって、基本巻数部３１においては、
突極部１２の中間部より先端側に線材が巻装され、突極
部１２の根元部の周囲に空間が生じする。そこで、１つ
置きに配置された加算巻数部３２には、図１,２に示す
ように、突極部１２の先端部、中間部と共に根元部にも
多くの線材を巻回することにより、基本巻数部３１より
加算巻数ｎだけ加算して巻装する。Therefore, in the basic winding number section 31,
The wire rod is wound around the salient pole portion 12 from the middle portion to the tip side, and a space is generated around the root portion of the salient pole portion 12. Therefore, as shown in FIGS. 1 and 2, a large number of wire rods are wound around the root portion as well as the tip end portion and the intermediate portion of the salient pole portion 12 in the additional winding number portion 32 arranged every other, The basic winding number unit 31 adds the additional winding number n and winds.
【００２３】隣接する２つの突極部１２の中間部に巻装
された発電コイル間の間隙が、線材の外径以上あれば、
根元部まで線材を挿入可能であるから、隣接する突極部
のうち、一方の突極部つまり加算巻数部３２には先端部
及び中間部から根元部まで巻装することが可能なのであ
る。If the gap between the magneto coils wound around the intermediate portion of two adjacent salient pole portions 12 is equal to or larger than the outer diameter of the wire,
Since the wire rod can be inserted to the root portion, one of the adjacent salient pole portions, that is, the additional winding number portion 32, can be wound from the tip portion and the intermediate portion to the root portion.
【００２４】このような発電コイル２の巻装により、Ｒ
相の磁極部３は、基本巻数の磁極部Ｒ１、加算巻数の磁
極部Ｒ２、基本巻数の磁極部Ｒ３、加算巻数の磁極部Ｒ
４、基本巻数の磁極部Ｒ５、加算巻数の磁極部Ｒ６とな
って、Ｒ相の総巻数は２３７回となり、Ｓ相の磁極部３
は、加算巻数の磁極部Ｓ１、基本巻数の磁極部Ｓ２、加
算巻数の磁極部Ｓ３、基本巻数の磁極部Ｓ４、加算巻数
の磁極部Ｓ５、基本巻数の磁極部Ｓ６となって、Ｓ相の
総巻数は２３７回となり、Ｔ相の磁極部３は、基本巻数
の磁極部Ｔ１、加算巻数の磁極部Ｔ２、基本巻数の磁極
部Ｔ３、加算巻数の磁極部Ｔ４、基本巻数の磁極部Ｔ
５、加算巻数の磁極部Ｔ６となって、Ｔ相の総巻数は２
３７回となり、すべてのＲＴＳ３相の巻数が同一とな
る。By winding the generator coil 2 as described above, R
The phase magnetic pole portion 3 includes a magnetic pole portion R1 having a basic winding number, a magnetic pole portion R2 having an additional winding number, a magnetic pole portion R3 having a basic winding number, and a magnetic pole portion R having an additional winding number.
4, the magnetic pole portion R5 having the basic number of turns and the magnetic pole portion R6 having the additional number of turns, the total number of windings of the R phase is 237, and the magnetic pole portion 3 of the S phase.
Is a magnetic pole portion S1 having an additional winding number, a magnetic pole portion S2 having a basic winding number, a magnetic pole portion S3 having an additional winding number, a magnetic pole portion S4 having a basic winding number, a magnetic pole portion S5 having an additional winding number, and a magnetic pole portion S6 having a basic winding number. The total number of turns is 237, and the magnetic pole portion 3 of the T phase has a magnetic pole portion T1 of basic winding number, a magnetic pole portion T2 of additional winding number, a magnetic pole portion T3 of basic winding number, a magnetic pole portion T4 of additional winding number, and a magnetic pole portion T of basic winding number.
5, the magnetic pole portion T6 has an additional number of turns, and the total number of turns of the T phase is 2
The number of turns is 37, and the number of turns of all three RTS phases is the same.
【００２５】このように、ステータコアの各突極部１２
に発電コイル２を巻装した状態のステータには、その発
電コイル２の周囲に合成樹脂粉末或いはゲル状の合成樹
脂がかけられ、これを加熱硬化させて発電コイル２が固
定される。Thus, each salient pole portion 12 of the stator core is
A synthetic resin powder or a gel-like synthetic resin is applied to the periphery of the power generating coil 2 on the stator in a state in which the power generating coil 2 is wound around, and the power generating coil 2 is fixed by heating and curing this.
【００２６】上記構成の磁石式発電機のステータは、図
示しないエンジンのケーシング内の固定部に、ステータ
コアの継鉄部１１を介して、つまりリング状の継鉄部１
１の固定孔１３に固定ねじを挿入し、それらのねじを締
め付けて固定される。そして、ステータの外周に、クラ
ンク軸に固定されたロータが僅かな隙間を介して回転可
能に配設される。ステータの発電コイル２に接続された
ワイヤハーネス３は、エンジンの電機機器などに接続さ
れる。The stator of the magnet type generator having the above-described structure is fixed to a not-shown engine casing through the yoke portion 11 of the stator core, that is, the ring-shaped yoke portion 1.
The fixing screws are inserted into the fixing holes 13 of No. 1 and the screws are tightened and fixed. A rotor fixed to the crankshaft is rotatably arranged on the outer circumference of the stator with a slight gap. The wire harness 3 connected to the generator coil 2 of the stator is connected to the electrical equipment of the engine.
【００２７】エンジンの運転に伴い、ロータが回転し、
ステータの外周部を複数に分割されたロータの永久磁石
が回転することにより、ステータの各磁極部に巻装され
た発電コイルに起電力が発生し、発電が行われる。磁石
式発電機の各相の起電力は、基本的には、各相の発電コ
イルの総巻数、回転速度及びそこに生じる全磁束に比例
するから、基本巻数部のみをステータの各磁極に設けた
従来のものに対し、このステータを有する発電機の起電
力は、発電コイルの巻数と磁束の増加分だけ増大するこ
とになる。With the operation of the engine, the rotor rotates,
Rotation of the permanent magnet of the rotor, which is formed by dividing the outer peripheral portion of the stator into a plurality of pieces, causes electromotive force to be generated in the power generation coil wound around each magnetic pole portion of the stator to generate power. Since the electromotive force of each phase of the magnet type generator is basically proportional to the total number of turns of the generating coil of each phase, the rotation speed and the total magnetic flux generated there, only the basic number of turns is provided on each magnetic pole of the stator. In contrast to the conventional one, the electromotive force of the generator having this stator is increased by the increase in the number of turns of the generating coil and the magnetic flux.
【００２８】次に、本発明の磁石式発電機のステータの
効果を確認するために行った実施例について説明する。
実施例では、１８個の突極部を有する外径１０５．６mm
のステータコアを使用し、そのステータコアの各突極部
に、線径１．１mmの線材を、隣接する磁極部の巻数が３
５回（基本巻数部）と４４回（加算巻数部）の巻数とな
るように、つまり、図１,２に示すように、基本巻数部
の３５回巻数部と加算巻数部の４４回巻数部が交互に配
置されるように、発電コイルを巻装した。そして、この
ようなステータを装着した磁石式発電機の出力線に整流
器を接続すると共に、定電圧制御回路を介してその出力
側に負荷を接続し、負荷電圧を一定電圧（１４Ｖ）とし
た状態で、負荷に流れる出力電流を、発電機の回転数を
変化させながら測定した。Next, a description will be given of an embodiment carried out to confirm the effect of the stator of the magnet type generator of the present invention.
In the embodiment, an outer diameter having 18 salient pole portions is 105.6 mm.
The stator core is used, and a wire rod with a wire diameter of 1.1 mm is attached to each salient pole portion of the stator core, and the number of turns of adjacent magnetic pole portions is 3
The number of turns is 5 (basic winding number) and 44 (additional winding number), that is, as shown in FIGS. 1 and 2, 35 winding number of basic winding number and 44 winding number of addition winding number. The generator coils were wound so that the two were alternately arranged. Then, a rectifier is connected to the output line of the magnet type generator equipped with such a stator, and a load is connected to the output side through a constant voltage control circuit to keep the load voltage at a constant voltage (14V). Then, the output current flowing through the load was measured while changing the rotation speed of the generator.
【００２９】また、比較例として、従来の磁石式発電
機、ここでは１８個の突極部を有する外径１０５．６mm
のステータコアの各突極部に、線径１．１mmの線材を３
５回の巻数だけ巻装し、そのステータを装着した磁石式
発電機の出力線に、上記と同様の整流器と定電圧制御回
路を接続し、その出力側に負荷を接続し、負荷電圧を一
定電圧（１４Ｖ）とした状態で、負荷に流れる出力電流
を、発電機の回転数を変化させながら測定した。Further, as a comparative example, a conventional magnet type generator, here an outer diameter of 105.6 mm having 18 salient pole portions is used.
Attach a wire rod with a wire diameter of 1.1 mm to each salient pole of the stator core of
Connect the same rectifier and constant voltage control circuit as above to the output line of the magnet type generator, which is wound 5 times and has the stator attached, and connect the load to the output side to keep the load voltage constant. The output current flowing through the load was measured while changing the rotation speed of the generator under the condition of the voltage (14V).
【００３０】図３は、磁石式発電機の回転速度に対する
出力電流の変化をグラフ化したものであり、グラフＡ
は、各磁極部に発電コイルを基本巻数（３５回）だけ巻
装した従来のステータを有した磁石式発電機の特性を示
し、グラフＢは、隣接する一方の磁極部の発電コイルの
巻数を基本巻数（３５回）に加算巻数（９回）を加算し
て加算巻数部（４４回）とし、基本巻数部と加算巻数部
を交互に配置した本実施例のステータの発電機の特性を
示している。FIG. 3 is a graph showing changes in the output current with respect to the rotation speed of the magnet type generator.
Shows a characteristic of a magneto-generator having a conventional stator in which each magnetic pole part has a basic number of windings (35 turns), and graph B shows the number of turns of the generating coil of one adjacent magnetic pole part. The characteristics of the generator of the stator of this embodiment in which the basic winding number (35 times) and the additional winding number (9 times) are added to form the additional winding number part (44 times) and the basic winding number part and the additional winding number part are alternately arranged are shown. ing.
【００３１】このグラフＡ、Ｂから、回転速度が約1900
rpmまでの低速回転域においては、本実施例のステータ
の発電機の出力電流が、比較例（従来例）のステータの
発電機のものより増大していることがわかる。また、回
転速度が約2000rpm以上の中速から高速回転域において
は、本実施例（グラフＢ）のステータの発電機では、出
力電流の上昇が抑えられ、より平坦な出力特性となって
いることがわかる。From these graphs A and B, the rotation speed is about 1900.
It can be seen that in the low speed rotation range up to rpm, the output current of the stator generator of the present embodiment is larger than that of the stator generator of the comparative example (conventional example). Further, in the medium to high speed rotation range of the rotation speed of about 2000 rpm or more, in the stator generator of the present embodiment (graph B), the rise of the output current is suppressed and the output characteristics are flatter. I understand.
【００３２】したがって、本発明の実施例によれば、こ
のステータの磁石式発電機をエンジン用発電機に使用し
た場合、そのアイドル回転域における出力電流を増加さ
せて、アイドル運転時の電気機器への給電能力やバッテ
リーへの充電能力を向上させることができる。また、中
速から高速回転域での出力電流の増加を抑え、より平坦
な特性にすることができるから、発電機の出力側に接続
される整流回路、充電回路、定電圧制御回路などに必要
とする耐電流性能を少なくし、回路を簡素化することが
できる。Therefore, according to the embodiment of the present invention, when the magnet type generator of the stator is used for the generator for the engine, the output current in the idle rotation range is increased to the electric equipment during the idle operation. It is possible to improve the power feeding ability and the battery charging ability. It is also necessary for rectifier circuits, charging circuits, constant voltage control circuits, etc. connected to the output side of the generator because it can suppress the increase of output current in the medium to high speed range and make the characteristics flatter. It is possible to reduce the withstand current performance and simplify the circuit.
【００３３】[0033]
【発明の効果】以上説明したように、本発明の磁石式発
電機のステータによれば、従来の同様な形状・大きさの
ステータコアに巻装された発電コイルの巻数より、発電
コイルの総巻数を増加させることができるから、従来の
全て同じ基本巻数の磁極部を持つ同じ形状・大きさステ
ータの発電機に比べ、より設計自由度の高い出力を得る
ことができる。As described above, according to the stator of the magnet type generator of the present invention, the total number of turns of the power generating coil is larger than the number of turns of the power generating coil wound around the conventional stator core having the same shape and size. Therefore, it is possible to obtain an output with a higher degree of design freedom as compared with a conventional generator having stators of the same shape and size with all magnetic pole portions having the same basic number of turns.
【００３４】また、既存のステータコアの突極部の根元
部に生じた隙間に、加算分のコイルを巻装するのみでよ
いから、既存のステータコアを使用して、簡単に高出力
の発電機を製作することができる。Further, since it is only necessary to wind the additional coil in the gap formed at the base of the salient pole portion of the existing stator core, it is possible to easily use the existing stator core to form a high-power generator. Can be manufactured.
【００３５】さらに、このステータを用いた磁石式発電
機の出力電流特性は、各磁極部の発電コイルの巻数を同
じように基本巻数とした従来の発電機の出力電流特性に
比べ、低速回転域での電流値が増大し、中速高速回転域
の電流上昇を抑えることができるから、アイドル運転時
の給電性能を向上させ、また、出力側に接続する回路の
耐電流性能を下げて回路を簡素化することができる。Further, the output current characteristic of the magnet type generator using this stator is in the low speed rotation range as compared with the output current characteristic of the conventional generator in which the number of turns of the generating coil of each magnetic pole portion is basically the same. Since the current value in the power supply increases and the current rise in the medium-speed / high-speed rotation range can be suppressed, the power supply performance during idle operation can be improved, and the withstand current performance of the circuit connected to the output side can be reduced to reduce the circuit. It can be simplified.
【図１】本発明の一実施形態を示すステータの正面図で
ある。FIG. 1 is a front view of a stator showing an embodiment of the present invention.
【図２】各磁極部に巻装した３相の発電コイルの巻装状
態を示すステータの正面図である。FIG. 2 is a front view of a stator showing a winding state of a three-phase power generation coil wound around each magnetic pole portion.
【図３】回転速度に対する出力電流の変化を示すグラフ
図である。FIG. 3 is a graph showing changes in output current with respect to rotation speed.
【図４】従来のステータの正面図である。FIG. 4 is a front view of a conventional stator.
１−ステータコア ２−発電コイル ３−磁極部 １１−継鉄部 １２−突極部 ３１‐基本巻数部 ３２‐加算巻数部 1-stator core 2-Generating coil 3- Magnetic pole 11-Yoke part 12- salient pole 31-Basic number of copies 32-Additional winding number section
Claims (3)
が突設されたステータコアと、該ステータコアの各突極
部に巻装された発電コイルと、を有し、該各突極部に発
電コイルを巻装してなる偶数個の磁極部が円周上に所定
の角度間隔で配置された磁石式発電機のステータにおい
て、 円周上に配置された前記複数の磁極部が、発電コイルを
基本の巻数だけ巻装した基本巻数部と、該基本巻数部の
巻数より多く巻装した加算巻数部とを交互に配置して形
成されたことを特徴とする磁石式発電機のステータ。1. A stator core having a plurality of salient pole portions projecting from the outer periphery of a ring-shaped yoke portion, and a magneto coil wound around each salient pole portion of the stator core. In a stator of a magnet-type generator in which an even number of magnetic poles formed by winding a generator coil around the poles are arranged at a predetermined angular interval on the circumference, the plurality of magnetic poles arranged on the circumference are A basic number of turns of the generator coil wound by a basic number of turns, and an additional number of turns of the generator coil wound more than the number of turns of the basic number of turns are alternately arranged. Stator.
の間隙は、少なくとも該発電コイルの線材の太ささより
広く形成され、前記加算巻数部における前記基本巻数部
より多く巻装した部分が、突極部の根元部分に巻装され
ている請求項１記載の磁石式発電機のステータ。2. A gap between the power generation coils of the pair of adjacent magnetic pole portions is formed to be at least wider than the thickness of the wire rod of the power generation coil, and a portion wound more than the basic winding number portion in the additional winding number portion is formed. The stator of the magneto-generator according to claim 1, wherein the stator is wound around a root portion of the salient pole portion.
発電コイルは三相交流用に３相に分けて磁極部に巻装さ
れ、３相の発電コイルは、各々順に円周方向に基本巻数
部と加算巻数部を繰り返すように巻装されている請求項
１記載の磁石式発電機のステータ。3. The magnetic pole portion is provided in multiples of 3, and the generator coil is wound around the magnetic pole portion in three phases for three-phase alternating current, and the three-phase generator coils are sequentially arranged in the circumferential direction. The stator of the magnet type generator according to claim 1, wherein the stator is wound so as to repeat the basic winding number part and the additional winding number part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001359991A JP2003164087A (en) | 2001-11-26 | 2001-11-26 | Stator of permanent magnet generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001359991A JP2003164087A (en) | 2001-11-26 | 2001-11-26 | Stator of permanent magnet generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003164087A true JP2003164087A (en) | 2003-06-06 |
Family
ID=19170890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001359991A Pending JP2003164087A (en) | 2001-11-26 | 2001-11-26 | Stator of permanent magnet generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003164087A (en) |
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| US9130429B2 (en) | 2012-08-03 | 2015-09-08 | Kabushiki Kaisha Yaskawa Denki | Rotating electrical machine |
| CN103580312B (en) * | 2012-08-03 | 2017-09-22 | 株式会社安川电机 | Electric rotating machine |
| CN108282037A (en) * | 2018-01-26 | 2018-07-13 | 南京邦奇自动变速箱有限公司 | The method of motor, preforming stator winding, the method for the preforming stator winding of manufacture and stator manufacturing of electric machines |
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