JP2875682B2 - Stator of vehicle alternator - Google Patents
Stator of vehicle alternatorInfo
- Publication number
- JP2875682B2 JP2875682B2 JP4146320A JP14632092A JP2875682B2 JP 2875682 B2 JP2875682 B2 JP 2875682B2 JP 4146320 A JP4146320 A JP 4146320A JP 14632092 A JP14632092 A JP 14632092A JP 2875682 B2 JP2875682 B2 JP 2875682B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- slit
- magnetic
- slot
- slots
- 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.)
- Expired - Lifetime
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
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 an automotive 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 vehicular alternator disclosed in, for example, Japanese Utility Model Laid-Open Publication 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 number of semi-closed slots 1a and teeth 1b. Reference numeral 2 denotes a stator coil held in each slot 1a, and a slot opening 1c
, The conductor of the stator coil 2 is inserted and accommodated. 2
b is a coil end. When the linear portion of the stator coil 2 is inserted into each slot 1a, the wedge 3 is inserted in the opening 1c in the axial direction to hold the stator coil 2. Each stator coil 2 is, for example, three-phase Y-shaped to form a stator winding. On the inner peripheral side of the stator core 1, a tooth portion 1b
The inner end face and the slot opening 1c are alternately formed, 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 (indicated by a chain line) disposed on the inner periphery of the stator core 1 via an air gap. And a magnetic coil. From both pole cores, claw-shaped pole pieces protrude axially alternately 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 above-described conventional AC generator for a vehicle, when the rotor 4 is driven and rotated, a large number of irregularities are formed on the inner peripheral portion of the stator core 1. There was a problem that noise due to wind noise increased. In addition, since the amount of magnetic flux is varied by the end face of the tooth portion 1b of the stator core 1 and the slot opening 1c and fluctuates, the magnetic noise is increased. Further, the wedge 3 is required for the opening 1c of the slot 1a, and there is a problem that productivity is reduced.
【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。SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and reduces wind noise and magnetic noise in an air gap portion due to rotation of a rotor to reduce noise. It is an object of the present invention to obtain a stator for an automotive alternator which eliminates the need for a motor and improves 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、半閉じのスロットを有する固定子の円
周方向に対しスロット数と同数のスリットを設けた磁性
円筒体を、固定子鉄心の内周に固着し、各スリットの幅
を各スロット開口部の幅よりさらに小に設定するととも
に、この各スリットに非磁性の合成樹脂材を充填したも
のである。 In a vehicle alternator according to the present invention, a stator having semi-closed slots is provided with a slit having the same number as the number of slots in the circumferential direction.
The cylinder is fixed to the inner circumference of the stator core, and the width of each slit is
Is set smaller than the width of each slot opening.
Each slit is filled with non-magnetic synthetic resin material.
It is.
【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。また、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
リットの幅が半閉じスロット開口部幅よりさらに狭く小
面積であり、しかもこの各スリットに非磁性の合成樹脂
材が充填されているので、風音及び磁気音が大幅に低減
される。According to the present invention, it is not necessary to insert a slot wedge in assembling the stator, and the operation is omitted. When the rotor is driven and rotated, wind is generated in the air gap as the rotor is rotated. However, the width of each slit of the magnetic cylinder is narrower and smaller than the width of the semi-closed slot opening.
Area, and each slit is made of non-magnetic synthetic resin
Since the material is filled, wind noise and magnetic noise are greatly reduced.
【０００８】[0008]
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、
半閉じの各スロットの開口部１ｃに対応し、この開口部
１ｃよりさらに幅の狭いスリット１０ａが円周方向に対
し半閉じスロット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。Embodiment 1 FIG. 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. 2 is a perspective view of a main part of FIG.
1, 1a to 1c, and 4 are the same as in FIGS. Numeral 10 is a thin magnetic cylinder fixed to the inner periphery of the stator core 1,
Corresponding to the opening 1c of the semi-closed each slot, narrow slit 10a of still wider than the opening 1c is provided in the same number as the semi-closed slot 1a number to the circumferential direction. The magnetic cylinder 10 is shown in a perspective view in FIG. This magnetic cylinder 10
Is fixed, so that the conventional wedge 3 is not required for the stator coil 2 inserted in the slot 1a.
【０００９】また、固定子鉄心１の内周は磁性円筒体１
０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
るとともに、この磁性円筒体１０のスリット１０ａに
は、非磁性の合成樹脂材が充填されているので、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大幅に
低減される。 Further, the inner periphery of the stator core 1 is magnetic cylinder 1
0, a very narrow slit 10a is provided on the surface facing the rotor 4 at the air gap, and the slit 10a of the magnetic cylinder 10 is formed in the slit 10a.
Is filled with a non-magnetic synthetic resin material, so that the wind noise and the magnetic noise accompanying the rotation of the rotor 4 are greatly reduced as compared with the conventional one.
【００１０】[0010]
【発明の効果】以上のように、この発明によれば、固定
子鉄心の半閉じの各ロットに対向して配置されるスリッ
トを有する磁性円筒体を、固定子鉄心の内周に固着する
とともに、上記各スリットに非磁性の合成樹脂材を充填
したので、回転子の駆動回動による風音及び磁気音が低
減し、騒音が大幅に低下する。さらにまた、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, the fixed
Slits placed opposite each semi-closed lot of the iron core
A magnetic cylinder with a core on the inner periphery of the stator core
At the same time, fill each slit with non-magnetic synthetic resin material
Since the, reduced wind noise and magnetic noise caused by the driving rotation of the rotor, noise is greatly reduced. Furthermore , the wedge of 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 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 of FIG. 1;
【図３】 図１の磁性円筒体の斜視図である。FIG. 3 is a perspective view of the magnetic cylinder shown in FIG. 1;
【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 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 of FIG. 4;
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 1 Stator core 1a Slot 1c opening 2 Stator coil 10 Magnetic cylinder 10a Slit
Claims (1)
子鉄心、この半閉じ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設
定するとともに、該スリットに非磁性の合成樹脂材を充
填したことを特徴とする車両用交流発電機の固定子。1. A stator core having a plurality of semi -closed slots, a stator coil inserted into the semi-closed slots, and the same number of slots as the number of slots in a circumferential direction. each slit is fixed to the inner circumference of the child core comprises a magnetic cylindrical body of thin-walled, which is in the opening position of the respective slot, setting the width of the slit smaller than the slot opening width
And fill the slit with a non-magnetic synthetic resin material.
Hama and stator of the automotive alternator, characterized in that the.
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 JPH05316677A (en) | 1993-11-26 |
| JP2875682B2 true 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) |
Families Citing this family (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 |
| DE102004056303A1 (en) * | 2004-11-22 | 2006-06-01 | Minebea Co., Ltd. | Statoranrordnung for an electrical machine, method for producing a stator assembly and DC motor |
| JP4476111B2 (en) | 2004-12-08 | 2010-06-09 | 三菱電機株式会社 | AC generator |
| 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 |
-
1992
- 1992-05-12 JP JP4146320A patent/JP2875682B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05316677A (en) | 1993-11-26 |
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