JPH05316677A - Stator of ac generator for vehicle - Google Patents
Stator of ac generator for vehicleInfo
- Publication number
- JPH05316677A JPH05316677A JP14632092A JP14632092A JPH05316677A JP H05316677 A JPH05316677 A JP H05316677A JP 14632092 A JP14632092 A JP 14632092A JP 14632092 A JP14632092 A JP 14632092A JP H05316677 A JPH05316677 A JP H05316677A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- magnetic
- slots
- slot
- stator core
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/12—Machines characterised by means for reducing windage losses or windage noise
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、固定子鉄心のスロッ
トに固定子コイルを装着した、車両用交流発電機の固定
子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator for a vehicle alternator in which a stator coil is mounted in a slot of a stator core.
【０００２】[0002]
【従来の技術】図４は例えば実開昭５３−１６８０３号
公報に示された、従来の車両用交流発電機の固定子の要
部断面図で、図５は図４の要部斜視図である。図におい
て、１は積層された固定子鉄心で、多数の半閉じのスロ
ット１ａと歯部１ｂが設けられている。２は各スロット
１ａに保持された固定子コイルで、スロット開口部１ｃ
から固定子コイル２の導体が挿入されて収容される。２
ｂはコイル端部である。各スロット１ａに固定子コイル
２の直線部が挿入されると、開口部１ｃ内にくさび３を
軸方向に挿入し、固定子コイル２を保持している。各固
定子コイル２は例えば三相のＹ形結線にされ、固定子巻
線が形成される。固定子鉄心１の内周側には、歯部１ｂ
内端面とスロット開口部１ｃとが交互にあり、多数の凹
凸部ができている。2. Description of the Related Art FIG. 4 is a sectional view of a main part of a stator of a conventional vehicle alternator shown in, for example, Japanese Utility Model Laid-Open No. 53-16803, and FIG. 5 is a perspective view of the main part of FIG. is there. In the figure, reference numeral 1 denotes a laminated stator core, which is provided with a large number of semi-closed slots 1a and tooth portions 1b. Reference numeral 2 denotes a stator coil held in each slot 1a, which has a slot opening 1c.
The conductor of the stator coil 2 is inserted and accommodated. Two
b is the end of the coil. When the straight portion of the stator coil 2 is inserted into each slot 1a, the wedge 3 is axially inserted into the opening 1c to hold the stator coil 2. Each stator coil 2 is, for example, three-phase Y-shaped connected to form a stator winding. The inner peripheral side of the stator core 1 has a tooth portion 1b.
The inner end surface and the slot openings 1c are alternately arranged, and a large number of uneven portions are formed.
【０００３】４は固定子鉄心１の内周にエアギャップを
介し、配置された回転子（鎖線で示す）で、例えば両側
一対の磁極鉄心（図示しない）と、これら磁極鉄心に装
着された界磁コイルとを有している。双方の磁極鉄心か
らは爪形磁極片が円周方向に対し交互に軸方向に出され
ている。Reference numeral 4 denotes a rotor (shown by a chain line) which is arranged on the inner circumference of the stator core 1 with an air gap interposed therebetween. And a magnetic coil. From each of the magnetic pole cores, claw-shaped magnetic pole pieces are alternately projected in the axial direction with respect to the circumferential direction.
【０００４】[0004]
【発明が解決しようとする課題】上記のような従来の車
両用交流発電機では、回転子４が駆動回転されると、固
定子鉄心１の内周部には多数の凹凸部があるので、風音
による騒音が高くなるという問題点があった。また、固
定子鉄心１の歯部１ｂ端面とスロット開口部１ｃとによ
り磁束量の疎密ができ変動するので、磁気騒音が高くな
るという問題点があった。さらに、スロット１ａの開口
部１ｃにはくさび３を要し、生産性を低下するという問
題点があった。In the conventional vehicle alternator as described above, when the rotor 4 is driven and rotated, the stator core 1 has a large number of irregularities on its inner peripheral portion. There was a problem that the noise caused by wind noise increased. Further, since the end face of the tooth portion 1b of the stator core 1 and the slot opening portion 1c make the amount of magnetic flux uneven and fluctuate, the magnetic noise becomes high. In addition, the opening 1c of the slot 1a needs the wedge 3 to reduce the productivity.
【０００５】この発明は、このような問題点を解決する
ためになされたもので、回転子の回転によるエアギャッ
プ部での風音及び磁気音を低減し騒音を低下し、さら
に、スロットのくさびを不要にし生産性を向上した車両
用交流発電機の固定子を得ることを目的としている。The present invention has been made to solve the above problems, and reduces wind noise and magnetic noise in the air gap portion due to the rotation of the rotor to reduce noise, and further, the slot wedge. The purpose of the invention is to obtain a stator for a vehicle AC generator that eliminates the need for improved productivity.
【０００６】[0006]
【課題を解決するための手段】この発明にかかる車両用
交流発電機では、薄肉の磁性円筒体に、円周方向に対し
スロット数と同数のスリットを軸方向に設け、この磁性
円筒体を固定子鉄心の内周に固着し、各スリットを各ス
ロット開口部位置にしたものである。In the vehicle alternator according to the present invention, a thin magnetic cylinder is provided with slits in the axial direction, the number of which is equal to the number of slots in the circumferential direction, and the magnetic cylinder is fixed. It is fixed to the inner circumference of the child iron core and each slit is located at each slot opening position.
【０００７】[0007]
【作用】この発明においては、固定子の組立てにおい
て、スロットくさびの挿入が不要となり、その作業が省
かれる。回転子が駆動回転されると、この回転につれエ
アギャップ部に風が生じるが、磁性円筒体の各スリット
は幅が狭く小面積であり、風音が低減され、また、磁気
音も低減される。According to the present invention, it is not necessary to insert the slot wedge in assembling the stator, and the work is omitted. When the rotor is driven and rotated, air is generated in the air gap portion due to this rotation, but each slit of the magnetic cylindrical body has a narrow width and a small area, which reduces wind noise and magnetic noise. .
【０００８】[0008]
【実施例】実施例１．図１はこの発明の一実施例による
車両用交流発電機の固定子の要部断面図で、図２は図１
の要部斜視図であり、１、１ａ〜１ｃ、４は図４、５と
同様である。１０は固定子鉄心１の内周に固着された、
薄肉の磁性円筒体で、各スロットの開口部１ｃに対応
し、開口部１ｃより幅の狭いスリット１０ａが円周方向
に対しスロット１ａ数と同数に設けられている。磁性円
筒体１０を図３に斜視図で示す。この磁性円筒体１０を
固着するので、スロット１ａに挿入された固定子コイル
２に対し、従来のくさび３は要しない。EXAMPLES Example 1. FIG. 1 is a sectional view of a main part of a stator of an automotive alternator according to an embodiment of the present invention, and FIG.
FIG. 1 is a perspective view of an essential part of FIG. 1, and 1a to 1c and 4 are the same as FIGS. 10 is fixed to the inner circumference of the stator core 1,
The thin magnetic cylindrical body is provided with slits 10a corresponding to the openings 1c of each slot and having a width narrower than that of the openings 1c in the circumferential direction in the same number as the number of slots 1a. The magnetic cylinder 10 is shown in a perspective view in FIG. Since this magnetic cylindrical body 10 is fixed, the conventional wedge 3 is not necessary for the stator coil 2 inserted in the slot 1a.
【０００９】上記一実施例の固定子において、固定子鉄
心１の内周は磁性円筒体１０により覆われ、エアギャッ
プでの回転子４との対向面には、極めて幅の小さいスリ
ット１０ａが設けられているのみである。したがって、
回転子４の回転に伴う風音及び磁気音が従来のものより
低減される。In the stator of the above-described embodiment, the inner circumference of the stator core 1 is covered with the magnetic cylindrical body 10, and the slit 10a having a very small width is provided on the surface facing the rotor 4 in the air gap. It is only being done. Therefore,
Wind noise and magnetic noise accompanying the rotation of the rotor 4 are reduced as compared with the conventional one.
【００１０】実施例２．なお、磁性円筒体１０のスリッ
ト１０ａに、非磁性の合成樹脂材を充てんしてもよい。
これにより、風音は一層低減される。Embodiment 2. The slit 10a of the magnetic cylindrical body 10 may be filled with a non-magnetic synthetic resin material.
Thereby, the wind noise is further reduced.
【００１１】[0011]
【発明の効果】以上のように、この発明によれば、円周
方向に対し多数のスリットが固定子鉄心のスロット数と
同数に設けられた、磁性円筒体を固定子鉄心の内周に固
着し、スリットをスロット開口部に位置させたので、回
転子の駆動回動による風音及び磁気音が低減し、騒音が
低下する。また、固定子鉄心のスロット開口部のくさび
を不要にし、作業性が向上する。As described above, according to the present invention, a magnetic cylindrical body having a number of slits provided in the circumferential direction in the same number as the number of slots of the stator core is fixed to the inner periphery of the stator core. Since the slit is located at the slot opening, wind noise and magnetic noise due to driving rotation of the rotor are reduced, and noise is reduced. Further, the wedge at the slot opening of the stator core is not required, and the workability is improved.
【図１】この発明の一実施例による車両用交流発電機の
固定子の要部断面である。FIG. 1 is a cross-sectional view of a main part of a stator of an automotive alternator according to an embodiment of the present invention.
【図２】図１の固定子の要部斜視図である。FIG. 2 is a perspective view of a main part of the stator shown in FIG.
【図３】図１の磁性円筒体の斜視図である。3 is a perspective view of the magnetic cylinder of FIG. 1. FIG.
【図４】従来の車両用交流発電機の固定子の要部断面図
である。FIG. 4 is a cross-sectional view of a main part of a stator of a conventional vehicle alternator.
【図５】図４の固定子の要部斜視図である。FIG. 5 is a perspective view of a main part of the stator shown in FIG.
【符号の説明】 １ 固定子鉄心 1a スロット 1c 開口部 ２ 固定子コイル 10 磁性円筒体 10a スリット[Explanation of symbols] 1 Stator core 1a Slot 1c Opening 2 Stator coil 10 Magnetic cylinder 10a Slit
Claims (1)
心、このスロットに挿入された固定子コイル、円周方向
に対し上記スロット数と同数のスリットが設けられてお
り、上記固定子鉄心の内周に固着され各スリットが上記
各スロットの開口部位置にされた薄肉の磁性円筒体を備
え、 上記スリットの幅を上記スロット開口部幅より小さくし
てあることを特徴とする車両用交流発電機の固定子。1. A stator core provided with a large number of slots, a stator coil inserted in the slots, and slits having the same number as the number of slots in the circumferential direction are provided. An AC generator for a vehicle, comprising a thin-walled magnetic cylindrical body fixedly attached to the circumference, each slit being located at the opening of each slot, and the width of the slit being smaller than the width of the slot opening. Stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4146320A JP2875682B2 (en) | 1992-05-12 | 1992-05-12 | Stator of vehicle alternator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4146320A JP2875682B2 (en) | 1992-05-12 | 1992-05-12 | Stator of vehicle alternator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05316677A true JPH05316677A (en) | 1993-11-26 |
| JP2875682B2 JP2875682B2 (en) | 1999-03-31 |
Family
ID=15405007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4146320A Expired - Lifetime JP2875682B2 (en) | 1992-05-12 | 1992-05-12 | Stator of vehicle alternator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2875682B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590003A (en) * | 1995-03-08 | 1996-12-31 | Seagate Technology, Inc. | Hydrodynamic spindle motor having distributed windings |
| US7012351B2 (en) | 2004-12-08 | 2006-03-14 | Mitsubishi Denki Kabushiki Kaisha | Alternator having a stator core with inclined teeth |
| EP1659672A1 (en) * | 2004-11-22 | 2006-05-24 | Minebea Co., Ltd. | Stator for an electrical machine, method for manufacturing a stator and DC motor |
| JP2007274801A (en) * | 2006-03-31 | 2007-10-18 | Aisin Aw Co Ltd | Stator and rotary electric machine |
-
1992
- 1992-05-12 JP JP4146320A patent/JP2875682B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590003A (en) * | 1995-03-08 | 1996-12-31 | Seagate Technology, Inc. | Hydrodynamic spindle motor having distributed windings |
| EP1659672A1 (en) * | 2004-11-22 | 2006-05-24 | Minebea Co., Ltd. | Stator for an electrical machine, method for manufacturing a stator and DC motor |
| US7012351B2 (en) | 2004-12-08 | 2006-03-14 | Mitsubishi Denki Kabushiki Kaisha | Alternator having a stator core with inclined teeth |
| JP2007274801A (en) * | 2006-03-31 | 2007-10-18 | Aisin Aw Co Ltd | Stator and rotary electric machine |
| JP4678522B2 (en) * | 2006-03-31 | 2011-04-27 | アイシン・エィ・ダブリュ株式会社 | Stator and rotating electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2875682B2 (en) | 1999-03-31 |
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