JPH04364339A - Ac generator for vehicle - Google Patents
Ac generator for vehicleInfo
- Publication number
- JPH04364339A JPH04364339A JP13999791A JP13999791A JPH04364339A JP H04364339 A JPH04364339 A JP H04364339A JP 13999791 A JP13999791 A JP 13999791A JP 13999791 A JP13999791 A JP 13999791A JP H04364339 A JPH04364339 A JP H04364339A
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- frame
- circumferential surface
- alternator
- vehicle
- 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.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 229920001971 elastomer Polymers 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 229920002379 silicone rubber Polymers 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は自動車等の車両用交流発
電機に係り、さらに詳細にはステータコアの取付構造に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to alternating current generators for vehicles such as automobiles, and more particularly to a stator core mounting structure.
【０００２】0002
【従来の技術】従来より車両用交流発電機には、図４に
示すようにステータコア４０の両側をそれぞれ第１，第
２のフレーム４１，４２でインロー結合（この結合部分
を符号４３，４４で示す）することでステータコア４０
を挾持するタイプのものと、図５に示すように第１フレ
ーム５１と第２フレーム５２とをインロー結合（この結
合部分を符号５３で示す）して、その一方のフレーム５
１の内周面にステータコア５０の外周を密着嵌合しつつ
、該フレーム５１に設けた係止段部５４と他方のフレー
ム５２のインロー部５３Ａの一部とで挾持固定する方式
のものがある。後者の場合、インロー５３Ａの一部とス
テータコア５０の一側面との間にはインローの寸法公差
を吸収するため、弾性部材５５などが介在されている。2. Description of the Related Art Conventionally, as shown in FIG. 4, a stator core 40 is connected to both sides of a stator core 40 by first and second frames 41 and 42, respectively, in a vehicle AC generator. ) by stator core 40
As shown in FIG.
There is a method in which the outer periphery of the stator core 50 is closely fitted to the inner peripheral surface of one frame 51 and clamped and fixed between a locking step 54 provided on the frame 51 and a part of the spigot part 53A of the other frame 52. . In the latter case, an elastic member 55 or the like is interposed between a part of the pilot 53A and one side of the stator core 50 in order to absorb the dimensional tolerance of the pilot.
【０００３】これらの方式のステータコア取付構造につ
いては、例えば実開昭５７−６３７３号公報に開示され
ている。These types of stator core mounting structures are disclosed in, for example, Japanese Utility Model Application Publication No. 57-6373.
【０００４】0004
【発明が解決しようとする課題】このうち、後者のタイ
プは、フレーム５１がステータコア５０外周をあてがう
ことで、ステータコア５０の実質的な剛性を増す分、前
者のタイプのものよりステータコアの肉厚を薄くでき、
必要以上にステータコアを厚くすることを解消して、発
電機出力／重量の比が最大となり得るものと評価される
。[Problems to be Solved by the Invention] Among these, the latter type has a frame 51 that covers the outer periphery of the stator core 50, increasing the substantial rigidity of the stator core 50. Can be made thin,
It is evaluated that the ratio of generator output/weight can be maximized by eliminating the need to make the stator core thicker than necessary.
【０００５】しかし、ステータコアを介してフレーム側
に磁気振動が伝わり易い構造となっており、磁気騒音対
策を施すことが望まれる。なお磁気振動に基づく磁気騒
音のメカニズムは実施例の項で詳述する。However, the structure is such that magnetic vibrations are easily transmitted to the frame side through the stator core, and it is desirable to take measures against magnetic noise. The mechanism of magnetic noise based on magnetic vibration will be explained in detail in the Examples section.
【０００６】本発明は以上の点に鑑みてなされ、その目
的は、簡単な構造により有効に磁気振動の伝達を減衰し
て振動騒音の抑制を図ることにある。The present invention has been made in view of the above points, and its object is to suppress vibration noise by effectively damping the transmission of magnetic vibrations with a simple structure.
【０００７】[0007]
【課題を解決するための手段】本発明は基本的には、ハ
ウジングとなるフレームの内周面にステータコアがその
外周面を密着嵌合しつつ固定してある車両用交流発電機
において、前記ステータコアの外周面に溝を敷設し、こ
の溝に熱膨張係数が前記ステータコアよりも大きい振動
減衰部材を充填したことを特徴とする。[Means for Solving the Problems] The present invention basically provides a vehicular alternator in which a stator core is fixed to the inner peripheral surface of a frame serving as a housing with its outer peripheral surface tightly fitted. A groove is provided on the outer peripheral surface of the stator core, and the groove is filled with a vibration damping member having a coefficient of thermal expansion larger than that of the stator core.
【０００８】また、上記発明に関連して、次のような車
両用交流発電機を提案する。Furthermore, in connection with the above invention, the following vehicle alternator is proposed.
【０００９】すなわち、車両用交流発電機において、第
１のフレームと第２のフレームとをインロー結合するこ
とでハウジングを構成し、前記第１，第２のフレームの
うち一方のフレームの内周面に前記ステータコアの外周
面を密着嵌合させつつ該フレームの内周面に設けた係止
段部と他方のフレームに設けたインロー部の一部とで前
記ステータコアを挾持固定し、且つ前記ステータコアの
外周面に溝を敷設し、この溝に熱膨張係数が前記ステー
タコアよりも大きい振動減衰部材を充填した構成とする
（この技術は実施例の態様のものである）。That is, in a vehicle alternator, the housing is constructed by connecting a first frame and a second frame with a spigot joint, and the inner circumferential surface of one of the first and second frames is The stator core is tightly fitted with the outer circumferential surface of the stator core, and the stator core is clamped and fixed between a locking step provided on the inner circumferential surface of the frame and a part of the spigot provided on the other frame, and A groove is formed on the outer peripheral surface, and the groove is filled with a vibration damping member having a coefficient of thermal expansion larger than that of the stator core (this technique is an aspect of the embodiment).
【００１０】なお、上記振動減衰部材としては、ゴムや
プラスチックなどが好適である。[0010] The vibration damping member is preferably made of rubber, plastic, or the like.
【００１１】[0011]
【作用】前述したような各課題解決手段によれば、ステ
ータコアが低温，常温の雰囲気にある場合には、前記振
動減衰部材はステータコア外周に敷設した溝に収まって
そのステータコア外周によりも外側に膨張することはな
く、機械的にはステータコアはフレーム内周に密着して
支持された状態にある。[Operation] According to each problem-solving means as described above, when the stator core is in a low temperature or room temperature atmosphere, the vibration damping member fits into the groove laid on the outer periphery of the stator core and expands outward than the outer periphery of the stator core. Mechanically, the stator core is supported in close contact with the inner periphery of the frame.
【００１２】また、ステータコイルの発熱でステータコ
アの温度が上昇すると、その熱を受けてステータコア外
周の溝に充填された振動減衰部材がステータコアよりも
大きく熱膨張して溝から一部がはみ出し、この力を受け
て見かけ上はフレーム内周よりステータコアが幾分浮い
た状態になる。なお、このような熱膨張の力はステータ
コアとフレームとの剛性が著しく異なるため（剛性はス
テータコア≫フレーム）、フレーム側に弾性変形力が及
ぼし、ステータコアは現状の状態のままなので、ステー
タコア内周とロータ外周間の適正な磁気ギャップは保持
される。Furthermore, when the temperature of the stator core rises due to the heat generated by the stator coil, the vibration damping member filled in the grooves on the outer periphery of the stator core expands thermally to a greater degree than the stator core due to the heat, and a portion of the vibration damping member protrudes from the groove. Due to the force, the stator core appears to be floating somewhat above the inner circumference of the frame. In addition, such thermal expansion force is caused by an elastic deformation force exerted on the frame side because the rigidity of the stator core and frame is significantly different (rigidity is stator core >> frame), and the stator core remains in its current state, so the inner periphery of the stator core and A proper magnetic gap between the rotor peripheries is maintained.
【００１３】このようなステータコアの浮上現象により
、フレームの内周とステータコア外周との間が密着しな
いで振動減衰部材が介在した状態が生じる。その結果、
ステータコアの磁気振動がフレームに伝わりにくくなり
、騒音の大幅な減少が可能となる。[0013] Such floating phenomenon of the stator core causes a state in which the inner periphery of the frame and the outer periphery of the stator core do not come into close contact with each other, and a vibration damping member is interposed. the result,
The magnetic vibrations of the stator core are less likely to be transmitted to the frame, making it possible to significantly reduce noise.
【００１４】なお、上記構成に代えて、ステータコア外
周に溝を敷設せず、単純に初めからステータコア外周を
振動減衰部材で包んでフレームから浮かす構造では、熱
サイクルで特に低温時等に振動減衰部材が収縮したとき
に振動減衰部材とフレーム間にギャップが生じたりして
ステータコアを完全に支持できない等の問題がある。[0014] Instead of the above structure, in a structure in which the outer periphery of the stator core is simply wrapped with a vibration damping member and floated from the frame without laying a groove on the outer periphery of the stator core, the vibration damping member may be removed during thermal cycles, especially at low temperatures. When the stator core contracts, a gap may be created between the vibration damping member and the frame, resulting in problems such as the inability to fully support the stator core.
【００１５】[0015]
【実施例】本発明の実施例を図１から図３により説明す
る。[Embodiment] An embodiment of the present invention will be explained with reference to FIGS. 1 to 3.
【００１６】図１には、本実施例のステータコア取付状
態を示す要部断面図及びそのステータコアの外周面の一
部を示してあり、図２には、本実施例の適用対象となる
車両用交流発電機の全体断面図が示してある。FIG. 1 shows a cross-sectional view of the main parts showing the stator core installation state of this embodiment and a part of the outer circumferential surface of the stator core, and FIG. A general cross-sectional view of the alternator is shown.
【００１７】まず、図２により本実施例における車両用
交流発電機の全体構成について説明する。First, the overall structure of the vehicle alternator according to this embodiment will be explained with reference to FIG.
【００１８】１はロータで界磁巻線２を備えており、刷
子３、スリップリング４を経て３相全波整流器５より供
給される直流電流により励磁される。また、ロータ１は
、そのシャフト７及びシャフト一端に取付けたプーリ６
を介して図示していないエンジン等の外部駆動装置によ
り駆動される。A rotor 1 is provided with a field winding 2, and is excited by a DC current supplied from a three-phase full-wave rectifier 5 via a brush 3 and a slip ring 4. The rotor 1 also includes a shaft 7 and a pulley 6 attached to one end of the shaft.
It is driven by an external drive device such as an engine (not shown) via the.
【００１９】シャフト７を回転自在に支える軸受８，９
はそれぞれアルミニウム等によるフレーム１０，１１に
より支持されている。Bearings 8 and 9 that rotatably support the shaft 7
are supported by frames 10 and 11 made of aluminum or the like, respectively.
【００２０】フレーム１０の内周には、ステータコア１
３がその外周面が密着嵌合しつつ装着され、この状態で
フレーム１０，１１がそれぞれのインロー要素１０Ａ，
１０Ｂ同士を介して結合され、ボルト１５の締め付けに
よりフレーム１０とフレーム１１が合体して発電機のハ
ウジングが構成される。この状態で、ステータコア１３
は、図１の（ａ）に示すようにその一方の側面がフレー
ム１０の内周に設けた係止段部１０Ｂに圧接し、他端が
フレーム１１のインロー部１１Ａに圧接して、これらの
係止段部１０Ａ及びフレーム１１のインロー部１１Ａに
より挾持固定される。[0020] On the inner periphery of the frame 10, a stator core 1 is provided.
3 are attached with their outer circumferential surfaces closely fitting, and in this state, the frames 10 and 11 are attached to the respective pilot elements 10A and 11.
The frames 10 and 11 are connected to each other via the bolts 10B, and by tightening the bolts 15, the frames 10 and 11 are combined to form a generator housing. In this state, stator core 13
As shown in FIG. 1(a), one side surface is in pressure contact with a locking step 10B provided on the inner periphery of the frame 10, and the other end is in pressure contact with a spigot part 11A of the frame 11. It is clamped and fixed by the locking step portion 10A and the spigot portion 11A of the frame 11.
【００２１】この場合、本実施例では、第１，第２のフ
レーム１０，１１をインロー結合する方式を採用するが
、ステータコア１３をフレーム１０に装着したときに、
ステータコア１３の一側面をフレーム１０のインロー部
１０Ａよりも僅かに突出させたので、インロー結合時に
フレーム１１のインロー部１１Ａの一部がステータコア
１３の一側面にインロー部１０Ａよりも優先して当接す
る。その結果、フレーム１１のインロー部１１Ａが従来
のようなインロー寸法公差吸収用のばね（図５の符号５
５で示す部分）を介することなくステータコア１３の一
側面を直接挾持する。In this case, in this embodiment, a method is adopted in which the first and second frames 10 and 11 are joined by a spigot joint, but when the stator core 13 is attached to the frame 10,
Since one side of the stator core 13 is made to protrude slightly beyond the spigot part 10A of the frame 10, a part of the spigot part 11A of the frame 11 comes into contact with one side of the stator core 13 preferentially than the spigot part 10A during spigot connection. . As a result, the spigot part 11A of the frame 11 has a spring for absorbing the spigot dimension tolerance (reference numeral 5 in FIG.
One side of the stator core 13 is directly clamped without intervening the portion indicated by 5).
【００２２】ここで図１（ｂ）によりステータコア１３
の構造を詳述する。Here, as shown in FIG. 1(b), the stator core 13
The structure of is detailed.
【００２３】環状のステータコア１３は図１の（ｂ）に
示すようにその外周に溝１７，１８が敷設され、この溝
１７，１８に振動減衰部材としてシリコーンゴム１６が
充填されている。溝１７はステータコア１３外周面の幅
方向に向き全周にわたり等間隔で平行配設された多数の
横溝から成り、この横溝１７とクロスして溝１８（縦溝
）がステータコア１３の周方向に延びて各横溝１７同士
を繋げている。As shown in FIG. 1(b), the annular stator core 13 has grooves 17 and 18 on its outer periphery, and these grooves 17 and 18 are filled with silicone rubber 16 as a vibration damping member. The grooves 17 are composed of a large number of horizontal grooves arranged in parallel at equal intervals across the entire circumference in the width direction of the outer circumferential surface of the stator core 13. Grooves 18 (vertical grooves) extend in the circumferential direction of the stator core 13 and cross the horizontal grooves 17. The horizontal grooves 17 are connected to each other.
【００２４】シリコーンゴム１６の充填は、例えば図示
しない型内にステータコア１３をセットして流し込むこ
とで行われ、縦溝１８はシリコーンゴム１６を各横溝１
７に流すための案内溝として機能する。この、シリコー
ンゴム１６は、ステータコア１３をフレーム１０に嵌合
した場合、常温時にはステータコア１３の外周面と同レ
ベル或いはそれ以下の面となるようにしてある。Filling of the silicone rubber 16 is carried out, for example, by setting the stator core 13 in a mold (not shown) and pouring the silicone rubber 16 into the vertical grooves 18.
It functions as a guide groove for flowing water to 7. When the stator core 13 is fitted into the frame 10, the silicone rubber 16 is designed to have a surface that is at the same level as or lower than the outer circumferential surface of the stator core 13 at room temperature.
【００２５】ここで、本実施例の作用の説明に先立ち磁
気振動騒音発生のメカニズムについて説明する。Here, before explaining the operation of this embodiment, the mechanism of magnetic vibration noise generation will be explained.
【００２６】界磁巻線２により励磁さらたロータ１の外
周と、ステータコア１３の内周とは微小なギャップ（例
えば約０．５ｍｍ）を介して回転しており、このエアギ
ャップが不均一となるため、ロータ磁気回転力に脈動を
生じ、薄板を積層したステータコア１３の共振周波数に
合致した回転数になると、ステータコア１３が共振し、
フレーム１０，１１を伝わって騒音を発生させる。The outer periphery of the rotor 1, which is excited by the field winding 2, and the inner periphery of the stator core 13 rotate through a minute gap (for example, about 0.5 mm), and this air gap may be uneven. Therefore, when the rotor magnetic rotational force causes pulsations and the rotation speed matches the resonant frequency of the stator core 13 made of laminated thin plates, the stator core 13 resonates.
Noise is generated through the frames 10 and 11.
【００２７】本実施例においては、発電によりステータ
コイル１２が発熱すると、その熱がステータコア１３に
伝わるが、ステータコア１３よりも溝１７，１８に充填
されたシリコーンゴム１６の方が熱膨張係数が大きいの
で、シリコーンゴム１６がステータコア１３外周面より
膨出し、その力によりフレーム１０が外側に押されるこ
とで、見かけ上、ステータコア１３がフレーム１０より
僅かに浮いた状態になる。In this embodiment, when the stator coil 12 generates heat due to power generation, the heat is transmitted to the stator core 13, but the silicone rubber 16 filled in the grooves 17 and 18 has a larger coefficient of thermal expansion than the stator core 13. Therefore, the silicone rubber 16 bulges out from the outer circumferential surface of the stator core 13, and the frame 10 is pushed outward by the force, so that the stator core 13 appears to be slightly floating above the frame 10.
【００２８】その結果、ステータコア１３がフレーム１
０に密着しないでシリコーンゴム１６がフレーム１０と
ステータコア１３内外周間に介在した状態が生じ、シリ
コーンゴム１６のダンパー効果によりステータコア１３
からフレーム１０に振動が伝わりにくくなり、大幅な振
動騒音の低減が図れる。As a result, the stator core 13 is attached to the frame 1.
0, the silicone rubber 16 is interposed between the frame 10 and the inner and outer peripheries of the stator core 13, and due to the damper effect of the silicone rubber 16, the stator core 13
This makes it difficult for vibrations to be transmitted to the frame 10, and vibration noise can be significantly reduced.
【００２９】図３に上記シリコーンゴムを用いた本実施
例の車両用発電機と従来のこの種車両用交流発電機との
発電機回転数対振動騒音特性の比較図を示す。図３のデ
ータから明らかなように、１２Ｖ７０Ａクラスの発電機
で比較した場合、本実施例によれば１８００ｒ／ｍから
４０００ｒ／ｍの回転数範囲においてピーク騒音（ｄＢ
−Ａ）が約１５％低減することができた。FIG. 3 shows a comparison diagram of the generator rotational speed versus vibration noise characteristics between the vehicle generator of this embodiment using the silicone rubber and a conventional vehicle alternator of this type. As is clear from the data in FIG. 3, when compared with a 12V70A class generator, according to this example, the peak noise (dB
-A) was able to be reduced by about 15%.
【００３０】なお、上記実施例では振動減衰部材として
シリコーンゴムを用いたが、その他プラスチックなど適
宜の部材を選択しても同様の効果を奏し得る。Although silicone rubber was used as the vibration damping member in the above embodiment, the same effect can be obtained by selecting other appropriate members such as plastic.
【００３１】さらに本実施例では、第１，第２のフレー
ム１０，１１をインロー結合する方式を採用するが、図
５で示すような寸法公差吸収用のばね部材を介すること
なくステータコア１３をフレーム１０，１１により直接
挾持する構造としたので、部品の省約化を図り得る利点
がある。Furthermore, in this embodiment, a method is adopted in which the first and second frames 10 and 11 are joined by a spigot joint, but the stator core 13 is connected to the frame without using a spring member for absorbing dimensional tolerances as shown in FIG. Since the structure is such that it is directly clamped by 10 and 11, there is an advantage that parts can be saved.
【００３２】[0032]
【発明の効果】以上のように本発明によれば、ステータ
コアの支持を熱サイクルの影響に関係なく確実に支持し
つつ、シンプルなステータコア取付構造により振動減衰
部材を介してステータコアからフレームへの磁気振動伝
達を抑制し、低騒音の車両用交流発電機を提供すること
ができる。As described above, according to the present invention, the stator core is reliably supported regardless of the effects of thermal cycles, and the magnetic field is transferred from the stator core to the frame via the vibration damping member using a simple stator core mounting structure. It is possible to suppress vibration transmission and provide a low-noise vehicle alternator.
【図１】本発明の一実施例に係る車両用交流発電機のス
テータコアの取付構造を示す部分断面図及びそのステー
タコアの一部を示す斜視図。FIG. 1 is a partial cross-sectional view showing a mounting structure for a stator core of a vehicle alternator according to an embodiment of the present invention, and a perspective view showing a part of the stator core.
【図２】上記実施例の車両用交流発電機の全体構成を示
す縦断面図。FIG. 2 is a longitudinal cross-sectional view showing the overall configuration of the vehicle alternator of the above embodiment.
【図３】上記実施例と従来の車両用交流発電機の発電機
回転数対騒音特性を比較した説明図。FIG. 3 is an explanatory diagram comparing the generator rotation speed versus noise characteristics of the above embodiment and a conventional vehicle alternator.
【図４】従来のステータコアの取付構造を示す一部断面
図。FIG. 4 is a partial cross-sectional view showing a conventional stator core mounting structure.
【図５】従来のステータコアの取付構造を示す一部断面
図。FIG. 5 is a partial cross-sectional view showing a conventional stator core mounting structure.
１０，１１…フレーム（第１，第２のフレーム）、１０
Ａ，１１Ａ…インロー部、１０Ｂ…係止段部、１２…ス
テータコイル、１３…ステータコア、１６…振動減衰部
材、１７，１８…溝（横溝，縦溝）。10, 11...Frame (first, second frame), 10
A, 11A... Spigot part, 10B... Locking step part, 12... Stator coil, 13... Stator core, 16... Vibration damping member, 17, 18... Groove (horizontal groove, vertical groove).
Claims (5)
ステータコアがその外周面を密着嵌合しつつ固定してあ
る車両用交流発電機において、前記ステータコアの外周
面に溝が敷設され、この溝に熱膨張係数が前記ステータ
コアよりも大きい振動減衰部材を充填して成ることを特
徴とする車両用交流発電機。1. A vehicle alternator in which a stator core is fixed to an inner circumferential surface of a frame serving as a housing with its outer circumferential surface tightly fitted, and a groove is laid in the outer circumferential surface of the stator core, and a groove is formed in the outer circumferential surface of the stator core. An alternator for a vehicle, characterized in that it is filled with a vibration damping member having a coefficient of thermal expansion larger than that of the stator core.
レームと第２のフレームとをインロー結合することでハ
ウジングを構成し、前記第１，第２のフレームのうち一
方のフレームの内周面に前記ステータコアの外周面を密
着嵌合させつつ該フレームの内周面に設けた係止段部と
他方のフレームに設けたインロー部の一部とで前記ステ
ータコアが挾持固定され、且つ前記ステータコアの外周
面に溝が敷設され、この溝に熱膨張係数が前記ステータ
コアよりも大きい振動減衰部材を充填して成ることを特
徴とする車両用交流発電機。2. In an alternator for a vehicle, the housing is configured by connecting a first frame and a second frame with a spigot joint, and the inner circumferential surface of one of the first and second frames is The stator core is clamped and fixed by a locking step provided on the inner circumferential surface of the frame and a part of the spigot provided on the other frame while tightly fitting the outer circumferential surface of the stator core to the other frame, and 1. An alternator for a vehicle, characterized in that a groove is formed on an outer peripheral surface, and the groove is filled with a vibration damping member having a coefficient of thermal expansion larger than that of the stator core.
振動減衰部材はゴム或いはプラスチックであることを特
徴とする車両用交流発電機。3. The alternator for a vehicle according to claim 1, wherein the vibration damping member is made of rubber or plastic.
項において、前記振動減衰部材はモールド成形して成る
ことを特徴とする車両用交流発電機。[Claim 4] Any one of claims 1 to 3
2. The vehicular alternator according to item 1, wherein the vibration damping member is formed by molding.
項において、前記溝は前記ステータコア外周面の幅方向
に向いて全周にわたり等間隔で平行配設された多数の横
溝と、この横溝とクロスしてステータコアの周方向に延
びて前記各横溝同士を繋げる縦溝とより成ることを特徴
とする車両用交流発電機。[Claim 5] Any one of claims 1 to 4
In paragraph 1, the grooves include a large number of lateral grooves arranged in parallel at equal intervals over the entire circumference in the width direction of the outer circumferential surface of the stator core, and a plurality of lateral grooves extending in the circumferential direction of the stator core to cross the lateral grooves and connecting the lateral grooves to each other. An alternator for a vehicle characterized by comprising vertical grooves that connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13999791A JP2942381B2 (en) | 1991-06-12 | 1991-06-12 | AC generator for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13999791A JP2942381B2 (en) | 1991-06-12 | 1991-06-12 | AC generator for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04364339A true JPH04364339A (en) | 1992-12-16 |
| JP2942381B2 JP2942381B2 (en) | 1999-08-30 |
Family
ID=15258530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13999791A Expired - Fee Related JP2942381B2 (en) | 1991-06-12 | 1991-06-12 | AC generator for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2942381B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802725A1 (en) * | 1999-12-20 | 2001-06-22 | Denso Corp | ROTARY ELECTRIC MACHINE HAVING AN ELASTIC ARMATURE SUPPORT STRUCTURE |
| DE102005037464A1 (en) * | 2005-08-09 | 2007-02-15 | Robert Bosch Gmbh | Stator of electrical machine e.g. passenger vehicle generator, has laminated core, which comprises a winding whereby damping mass is arranged in interdental spaces in between external teeth at the outer circumference |
| JP2010239725A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Automotive Systems Ltd | Rotary electric machine for vehicle |
| US8097997B2 (en) | 2005-02-24 | 2012-01-17 | Toyota Jidosha Kabushiki Kaisha | Driving device with rotating electric machine |
| JP2015528682A (en) * | 2012-09-04 | 2015-09-28 | ウェイ，リーハン | Permanent magnetic laminated motor |
| EP2768123A4 (en) * | 2011-10-06 | 2016-03-23 | Mitsubishi Electric Corp | Electric motor |
| CN107154688A (en) * | 2017-07-05 | 2017-09-12 | 珠海凯邦电机制造有限公司 | Stator punching, stator core and motor |
| FR3065593A1 (en) * | 2017-04-21 | 2018-10-26 | Valeo Equipements Electriques Moteur | ROTARY ELECTRIC MACHINE WITH LOW NOISE |
| WO2019065335A1 (en) * | 2017-09-29 | 2019-04-04 | 日本電産サーボ株式会社 | Motor |
| CN110611382A (en) * | 2019-09-20 | 2019-12-24 | 青岛海西电气有限公司 | Motor stator with vibration isolation function |
| WO2020249555A1 (en) * | 2019-06-11 | 2020-12-17 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Stator for an electric motor |
| CN112117836A (en) * | 2019-06-19 | 2020-12-22 | Nok株式会社 | Stator structure of motor and motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3141016A1 (en) * | 2022-10-14 | 2024-04-19 | Novares France | Stator for electric motor incorporating an acoustic absorbing or structural damping element |
-
1991
- 1991-06-12 JP JP13999791A patent/JP2942381B2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2802725A1 (en) * | 1999-12-20 | 2001-06-22 | Denso Corp | ROTARY ELECTRIC MACHINE HAVING AN ELASTIC ARMATURE SUPPORT STRUCTURE |
| US6770996B2 (en) | 1999-12-20 | 2004-08-03 | Denso Corporation | Rotary electric machine with stator elastic support structure |
| US8097997B2 (en) | 2005-02-24 | 2012-01-17 | Toyota Jidosha Kabushiki Kaisha | Driving device with rotating electric machine |
| DE102005037464A1 (en) * | 2005-08-09 | 2007-02-15 | Robert Bosch Gmbh | Stator of electrical machine e.g. passenger vehicle generator, has laminated core, which comprises a winding whereby damping mass is arranged in interdental spaces in between external teeth at the outer circumference |
| JP2010239725A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Automotive Systems Ltd | Rotary electric machine for vehicle |
| EP2768123A4 (en) * | 2011-10-06 | 2016-03-23 | Mitsubishi Electric Corp | Electric motor |
| US10177612B2 (en) | 2011-10-06 | 2019-01-08 | Mitsubishi Electric Corporation | Motor with stator fixing structure |
| JP2015528682A (en) * | 2012-09-04 | 2015-09-28 | ウェイ，リーハン | Permanent magnetic laminated motor |
| FR3065593A1 (en) * | 2017-04-21 | 2018-10-26 | Valeo Equipements Electriques Moteur | ROTARY ELECTRIC MACHINE WITH LOW NOISE |
| CN107154688A (en) * | 2017-07-05 | 2017-09-12 | 珠海凯邦电机制造有限公司 | Stator punching, stator core and motor |
| WO2019065335A1 (en) * | 2017-09-29 | 2019-04-04 | 日本電産サーボ株式会社 | Motor |
| WO2020249555A1 (en) * | 2019-06-11 | 2020-12-17 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Stator for an electric motor |
| CN114041260A (en) * | 2019-06-11 | 2022-02-11 | 博泽沃尔兹堡汽车零部件欧洲两合公司 | Stator for an electric motor |
| CN112117836A (en) * | 2019-06-19 | 2020-12-22 | Nok株式会社 | Stator structure of motor and motor |
| CN110611382A (en) * | 2019-09-20 | 2019-12-24 | 青岛海西电气有限公司 | Motor stator with vibration isolation function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2942381B2 (en) | 1999-08-30 |
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| LAPS | Cancellation because of no payment of annual fees |