JPH04251537A - Armature for rotating machine - Google Patents
Armature for rotating machineInfo
- Publication number
- JPH04251537A JPH04251537A JP40955890A JP40955890A JPH04251537A JP H04251537 A JPH04251537 A JP H04251537A JP 40955890 A JP40955890 A JP 40955890A JP 40955890 A JP40955890 A JP 40955890A JP H04251537 A JPH04251537 A JP H04251537A
- Authority
- JP
- Japan
- Prior art keywords
- armature
- phase
- winding
- slots
- windings
- 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 55
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000016507 interphase Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、互いに位相が異なる複
数組の三相電機子巻線を有する回転電機の電機子に関す
る。本発明は例えば、車両用三相交流発電機の固定子に
適用される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armature for a rotating electric machine having a plurality of sets of three-phase armature windings having mutually different phases. The present invention is applied, for example, to a stator of a three-phase alternating current generator for a vehicle.
【０００２】0002
【従来の技術】車両用三相交流発電機に互いに位相が電
気角で３０度異なる二組の三相電機子巻線を巻装すれば
全波整流電圧のリップル率を低減することができる。二
組の三相電機子巻線を巻装するには、一組の三相電機子
巻線の場合よりスロット数を２倍とすればよい。その他
、同一スロットに異なる相の一対の電機子巻線を収容す
ることもできる。2. Description of the Related Art If two sets of three-phase armature windings having phases different from each other by 30 degrees in electrical angle are wound around a three-phase alternating current generator for a vehicle, the ripple rate of the full-wave rectified voltage can be reduced. In order to wind two sets of three-phase armature windings, the number of slots may be doubled compared to the case of one set of three-phase armature windings. In addition, a pair of armature windings of different phases can also be accommodated in the same slot.
【０００３】0003
【発明が解決しようとする課題】しかしながら、固定子
のスロット数を２倍とすると、歯状部の幅が半減して巻
線時に変形し易いなどの問題が生じてしまう。特にこの
問題は、回転電機の小型化に伴いより重大となる。また
同一スロットに異なる二相を収容する場合には、巻線作
業が複雑となる不具合があり、またスロット内の相間絶
縁を強化することも必要となる。However, if the number of slots in the stator is doubled, the width of the toothed portions will be halved, causing problems such as easy deformation during winding. In particular, this problem becomes more serious as rotating electric machines become smaller. Furthermore, when two different phases are accommodated in the same slot, there is a problem that the winding work becomes complicated, and it is also necessary to strengthen the interphase insulation within the slot.
【０００４】本発明は上記問題点に鑑みなされたもので
あり、巻線工程における歯状部変形やスロット内の相間
絶縁の強化といった不具合が生じない回転電機の電機子
を提供することをその目的としている。The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide an armature for a rotating electrical machine that does not suffer from problems such as deformation of toothed portions during the winding process and reinforcement of interphase insulation in slots. It is said that
【０００５】[0005]
【課題を解決するための手段】本発明の回転電機の電機
子は、互いに位相が異なる複数組の三相電機子巻線が電
機子鉄心内周部に巻装されてなる回転電機の電機子にお
いて、前記各組の三相電機子巻線は、周方向へ組順次に
配設されることを特徴としている。当然、各スロットは
、収容する三相電機子巻線各組毎に複数のスロット群に
分類され、そして各スロット群の周方向位置は、各組の
三相電機子巻線間の位相差に合わせて位相差をもつ。[Means for Solving the Problems] The armature of a rotating electric machine of the present invention is an armature of a rotating electric machine in which a plurality of sets of three-phase armature windings having mutually different phases are wound around the inner circumference of an armature core. The three-phase armature windings of each set are arranged in set order in the circumferential direction. Naturally, each slot is classified into a plurality of slot groups for each set of three-phase armature windings it accommodates, and the circumferential position of each slot group is determined by the phase difference between the three-phase armature windings of each set. They also have a phase difference.
【０００６】[0006]
【作用及び発明の効果】本発明の回転電機の電機子では
、互いに位相が異なる各組の三相電機子巻線が、電機子
鉄心内周部に周方向へ組順次に配設される。例えば、電
機子鉄心内周部の右半周に第１組の三相電機子巻線が配
設され、電機子鉄心内周部の左半周に第２組の三相電機
子巻線が配設される。[Operations and Effects of the Invention] In the armature of a rotating electric machine according to the present invention, sets of three-phase armature windings having different phases from each other are arranged in the circumferential direction on the inner periphery of the armature core. For example, a first set of three-phase armature windings is arranged on the right half of the inner circumference of the armature core, and a second set of three-phase armature windings is arranged on the left half of the inner circumference of the armature core. be done.
【０００７】すなわち、同一組の三相電機子巻線を電機
子鉄心内周部の全周に配設していた従来の巻線方式に比
較して、本発明では各組の三相電機子巻線はそれぞれ物
理角３６０度／組数だけ占有するだけであり、電機子鉄
心内周部の全周に各組の三相電機子巻線を収容するスロ
ットを組別に作製する必要がなく、必要スロット数は従
来の半分以下に減少する。That is, compared to the conventional winding system in which the same set of three-phase armature windings are arranged all around the inner circumference of the armature core, in the present invention, each set of three-phase armature windings is Each winding only occupies a physical angle of 360 degrees/the number of sets, and there is no need to create slots for each set of three-phase armature windings around the entire inner periphery of the armature core for each set. The number of required slots is reduced to more than half of the conventional number.
【０００８】以上説明したように、本発明の回転電機の
電機子では同一スロットに異位相の複数組の三相電機子
巻線を収容することなく、必要スロット数を大幅に削減
することができるので、相間絶縁の強化及び歯状部幅の
減少を招くことがなく、巻線工程などにおいて歯状部が
変形したりすることがない。また、歯状部の剛性強化に
より歯状部の磁気力に基づく振動も抑止することができ
る。As explained above, in the armature of the rotating electrical machine of the present invention, the number of required slots can be significantly reduced without accommodating multiple sets of three-phase armature windings with different phases in the same slot. Therefore, the interphase insulation will not be strengthened and the width of the toothed portion will not be reduced, and the toothed portion will not be deformed during the winding process or the like. Further, by increasing the rigidity of the toothed portion, vibrations caused by the magnetic force of the toothed portion can also be suppressed.
【０００９】[0009]
【実施例】本発明の回転電機の電機子の一実施例を図２
の回路図に示し、その三相電機子巻線の巻線図を図１に
示す。この回転電機の電機子は、車両用三相交流発電機
であって、その電機子鉄心７（図１参照）には、Ｘ、Ｙ
、Ｚ相巻線からなる第１の三相電機子巻線１、及び、Ｕ
、Ｖ、Ｗ相巻線からなる第２の三相電機子巻線２が電気
角３０度だけ位相が異なって互いに巻装されている。
３は第１の三相電機子巻線１から出力される三相交流電
圧を全波整流する三相全波整流器、４は第２の三相電機
子巻線２から出力される三相交流電圧を全波整流する三
相全波整流器であり、これら両三相全波整流器３、４の
出力される直流電圧は共通の出力端子５に送電される。[Example] Fig. 2 shows an example of the armature of a rotating electric machine according to the present invention.
The winding diagram of the three-phase armature winding is shown in Figure 1. The armature of this rotating electrical machine is a three-phase alternating current generator for vehicles, and the armature core 7 (see FIG. 1) has X, Y
, a first three-phase armature winding 1 consisting of a Z-phase winding, and U
, V, and W phase windings are wound with each other so that their phases differ by an electrical angle of 30 degrees. 3 is a three-phase full-wave rectifier that full-wave rectifies the three-phase AC voltage output from the first three-phase armature winding 1, and 4 is a three-phase AC voltage output from the second three-phase armature winding 2. This is a three-phase full-wave rectifier that performs full-wave rectification of voltage, and the DC voltage output from both three-phase full-wave rectifiers 3 and 4 is transmitted to a common output terminal 5.
【００１０】電機子（固定子）鉄心７内には、界磁（回
転子）鉄心８が回転自在に保持されており、界磁（回転
子）鉄心８の外周面にはＮ極となる計４個の爪状磁極８
ａ及びＳ極となる計４個の爪状磁極８ｂが周方向へ交互
に配設されている。更に界磁鉄心８には上記各爪状磁極
８ａ、８ｂを直流磁化する励磁巻線（図示せず）が巻装
されている。このような爪状磁極型の車両用三相交流発
電機の基本構造自体は極めて周知であるので、これ以上
の説明を省略する。A field (rotor) core 8 is rotatably held within the armature (stator) core 7, and a N-pole is formed on the outer peripheral surface of the field (rotor) core 8. 4 claw-shaped magnetic poles 8
A total of four claw-shaped magnetic poles 8b, which are a and south poles, are arranged alternately in the circumferential direction. Furthermore, an excitation winding (not shown) is wound around the field core 8 to direct current magnetize the claw-shaped magnetic poles 8a and 8b. The basic structure of such a claw-shaped magnetic pole type three-phase alternating current generator for vehicles is well known, so further explanation will be omitted.
【００１１】電機子鉄心７には、２群のスロット群が形
成されている。第１のスロット群は、図２中、電機子鉄
心７の内周部の左半周に形成されており、この第１のス
ロット群を構成する１２個のスロットは６０２乃至６１
２の番号を付けられている。第２のスロット群は、図２
中、電機子鉄心７の内周部の右半周に形成されており、
この第２のスロット群を構成する１２個の各スロットは
６１３乃至６２３の番号を付けられている。Two groups of slots are formed in the armature core 7. The first slot group is formed on the left half of the inner circumference of the armature core 7 in FIG.
It is numbered 2. The second slot group is shown in FIG.
It is formed on the right half of the inner circumference of the armature core 7,
Each of the 12 slots making up this second slot group is numbered 613 to 623.
【００１２】上記第１スロット群の各スロットと第２ス
ロット群の各スロットとは電気角で３０度だけ周方向に
位相差を有しており、同じスロット群中の隣接する任意
の二つのスロットは電気角で６０度だけ周方向に位相差
を有している。この位相差をもたせるがために、異形の
スロット６９１、６９２を上記二つのスロット群の境界
部に形成する。すなわち、スロット６９１はスロット開
口部だけがもつ不完全スロットで構成され、スロット６
９２は大形スロットとなっている。なおスロット６９１
は省略可能である。Each slot in the first slot group and each slot in the second slot group have a phase difference of 30 electrical degrees in the circumferential direction, and any two adjacent slots in the same slot group has a phase difference in the circumferential direction of 60 electrical degrees. In order to provide this phase difference, irregularly shaped slots 691 and 692 are formed at the boundary between the two groups of slots. That is, the slot 691 is composed of an incomplete slot that only the slot opening has.
92 is a large slot. Note that slot 691
can be omitted.
【００１３】次に、三相電機子巻線１、２の巻線方式を
説明する。第１の三相電機子巻線１を構成する巻線４０
１乃至４１２は上記第１スロット群に収納されており、
第２の三相電機子巻線２を構成する巻線５０１乃至５１
２は上記第２スロット群に収納されている。更に、拡大
スロット６９２には復方向のＸ相巻線４０１及び往方向
のＶ相巻線５１２が収容される。Next, the winding system of the three-phase armature windings 1 and 2 will be explained. Winding 40 constituting the first three-phase armature winding 1
1 to 412 are stored in the first slot group,
Windings 501 to 51 constituting the second three-phase armature winding 2
2 is housed in the second slot group. Further, the enlarged slot 692 accommodates the backward X-phase winding 401 and the forward V-phase winding 512.
【００１４】上記説明したようにこの実施例では、電機
子鉄心７の内周部の一方の半周に第１の三相電機子巻線
１を配設し、電機子鉄心７の内周部の他方の半周に第２
の三相電機子巻線２を配設しているので、両三相電機子
巻線１、２を両方とも全周にわたって電気角６０度のピ
ッチで巻装する場合に比べて、スロット数を半減するこ
とができる。As explained above, in this embodiment, the first three-phase armature winding 1 is disposed around one half of the inner circumference of the armature core 7, and 2nd half around the other half
Since the three-phase armature winding 2 is arranged, the number of slots can be reduced compared to the case where both three-phase armature windings 1 and 2 are wound at a pitch of 60 electrical degrees over the entire circumference. It can be halved.
【００１５】本実施例では、界磁鉄心８の右半面と左半
面とにはπ／６（電気角）だけ位相が異なる磁気力が作
用するが、磁気騒音上特に問題となる脈動磁気力成分は
第３次高調波成分に基づくものが主成分であるので、脈
動磁気力成分の微分値としての力波（起振力）は印加電
圧の周波数の第６次高調波成分となる。上記説明したよ
うに、第１の三相電機子巻線１により生じる第６次高調
波成分と、第２の三相電機子巻線２により生じる第６次
高調波成分とは、π／６（電気角）すなわち半波分だけ
ずれているので、結局、両三相電機子巻線１、２により
それぞれ生じる脈動磁気力に基づく起振力は互いに相殺
する。In this embodiment, magnetic forces having a phase difference of π/6 (electrical angle) act on the right half surface and the left half surface of the field core 8, but the pulsating magnetic force component is particularly problematic in terms of magnetic noise. Since the main component is based on the third harmonic component, the force wave (excitation force) as the differential value of the pulsating magnetic force component becomes the sixth harmonic component of the frequency of the applied voltage. As explained above, the sixth harmonic component generated by the first three-phase armature winding 1 and the sixth harmonic component generated by the second three-phase armature winding 2 are π/6 (electrical angle), that is, by a half wave, the excitation forces based on the pulsating magnetic forces generated by both three-phase armature windings 1 and 2 cancel each other out.
【００１６】なお、上記実施例では電機子鉄心７にスロ
ットを設けて巻線しているが、スロットのない、いわゆ
るギャップワインディング方式であってもよい。また、
上記実施例では、第１の三相電機子巻線１及び２をＹ結
線しているが、当然、△結線でもよく、また整流器が接
続されていない交流負荷接続のものであってもよい。In the above embodiment, the armature core 7 is provided with slots for winding, but a so-called gap winding method without slots may also be used. Also,
In the above embodiment, the first three-phase armature windings 1 and 2 are Y-connected, but of course they may be Δ-connected or may be connected to an AC load without a rectifier.
【図１】 実施例の三相電機子巻線図[Figure 1] Three-phase armature winding diagram of the example
【図２】 実
施例の回転電機の回路図[Figure 2] Circuit diagram of the rotating electric machine of the example
４０１乃至４１２は第１組の三相電機子巻線５０１乃至
５１２は第２組の三相電機子巻線７は電機子鉄心401 to 412 are the first set of three-phase armature windings 501 to 512 are the second set of three-phase armature windings 7 are the armature cores
Claims (1)
線が電機子鉄心内周部に巻装されてなる回転電機の電機
子において、前記各組の三相電機子巻線は、周方向へ組
順次に配設されることを特徴とする回転電機の電機子。1. An armature for a rotating electrical machine in which a plurality of sets of three-phase armature windings having different phases from each other are wound around an inner circumferential portion of an armature core, wherein each set of three-phase armature windings comprises: An armature for a rotating electrical machine, characterized in that it is arranged in assembly order in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40955890A JPH04251537A (en) | 1990-12-28 | 1990-12-28 | Armature for rotating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40955890A JPH04251537A (en) | 1990-12-28 | 1990-12-28 | Armature for rotating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04251537A true JPH04251537A (en) | 1992-09-07 |
Family
ID=18518886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40955890A Pending JPH04251537A (en) | 1990-12-28 | 1990-12-28 | Armature for rotating machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04251537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8264114B2 (en) | 2009-05-14 | 2012-09-11 | Denso Corporation | Electric rotating machine having improved stator coil arrangement for reducing magnetic noise and torque ripple |
-
1990
- 1990-12-28 JP JP40955890A patent/JPH04251537A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8264114B2 (en) | 2009-05-14 | 2012-09-11 | Denso Corporation | Electric rotating machine having improved stator coil arrangement for reducing magnetic noise and torque ripple |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1024579B1 (en) | Alternator | |
| JP3041884B2 (en) | AC generator for vehicles | |
| EP0454039B1 (en) | Alternating current generator having a plurality of independent three-phase windings | |
| US6417592B2 (en) | Rotary electric machine for vehicle | |
| JP3254130B2 (en) | Axial air gap electric motor without brush | |
| EP1030433B1 (en) | Dynamo-electric machine | |
| CA1115771A (en) | Seven phase rotary machine apparatus | |
| EP1365495A2 (en) | Automotive alternating-current dynamoelectric machine | |
| JP2002199677A (en) | Alternating current generator for vehicle and manufacturing method of its stator | |
| JPH0444499B2 (en) | ||
| US5942873A (en) | Permanent magnet type synchronous machine | |
| US20030057789A1 (en) | Five phase alternating current generator | |
| JPH048140A (en) | Rotary electric machine | |
| WO2018008372A1 (en) | 6-line 3-phase motor, inverter apparatus, and motor system | |
| US6563247B2 (en) | AC generator having stator assembly with improved phase coil insertion order to reduce noise | |
| JPH04347566A (en) | Brushless synchronous machine | |
| JP3455988B2 (en) | Rotating electric machine | |
| JP4476585B2 (en) | 2Y motor stator structure | |
| JPH04251537A (en) | Armature for rotating machine | |
| JPH06261479A (en) | Armature winding | |
| JP3103435B2 (en) | AC generator for vehicles | |
| US20010045787A1 (en) | Permanent magnet synchronous motor | |
| JP2518206B2 (en) | Winding method of brushless DC linear motor | |
| JP2000060092A (en) | Multipolar generator | |
| JP4438234B2 (en) | AC generator for vehicles |