JPH03265450A - Rotor for automotive ac generator - Google Patents
Rotor for automotive ac generatorInfo
- Publication number
- JPH03265450A JPH03265450A JP2062001A JP6200190A JPH03265450A JP H03265450 A JPH03265450 A JP H03265450A JP 2062001 A JP2062001 A JP 2062001A JP 6200190 A JP6200190 A JP 6200190A JP H03265450 A JPH03265450 A JP H03265450A
- Authority
- JP
- Japan
- Prior art keywords
- pole core
- pawls
- claws
- permanent magnet
- outer diameter
- 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
- 230000004907 flux Effects 0.000 claims abstract description 13
- 210000000078 claw Anatomy 0.000 claims description 42
- 239000000696 magnetic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
本発明は、特に、ランデル型ポールコアを界磁回転子と
する車両用交流発電機の回転子に関する。The present invention particularly relates to a rotor for a vehicle alternator that uses a Lundell-type pole core as a field rotor.
近年、車両用交流発電機に対する社会的ニーズＬ１．て
、低騒音化及び高出力化が求められている。
ここで、車両用交流発電機の出力を向上させる技術とし
ては、例えば、特開昭６１−８５０４５号公報「車両用
交流発電機」にて開示されたものが知られている。In recent years, social needs L1 for vehicle AC generators have increased. Therefore, lower noise and higher output are required. Here, as a technique for improving the output of a vehicle alternator, for example, the one disclosed in Japanese Patent Application Laid-Open No. 61-85045 entitled "Vehicle Alternator" is known.
上記公報における車両用交流発電機の回転子では、爪状
磁極となるポールコＴの爪部間に設けられた永久磁石に
より発電に寄与する有効磁束が増し出力向上が図られて
いる。
しかし、このものが高速回転された場合には、低騒音化
に対する工夫がなされていないことによりポールコア等
による爪音及び風切音が発生してしまうという問題があ
った。
本発明は、上記の課題を解決するために成されたもので
あり、その目的とするきころは、高出力化に加えて低騒
音化を達成し性能向上を図った車両用交流発電機の回転
子を提供することである。In the rotor of the vehicular alternator disclosed in the above-mentioned publication, the effective magnetic flux contributing to power generation is increased by the permanent magnets provided between the claws of the pole coil T, which serve as claw-shaped magnetic poles, and the output is improved. However, when this device is rotated at high speed, there is a problem in that clawing noise and wind noise due to the pole core etc. are generated because no measures have been taken to reduce noise. The present invention has been made to solve the above problems, and its purpose is to provide an alternator for vehicles with improved performance by achieving high output and low noise. The purpose is to provide a rotor.
上記課題を解決するための発明の構成は、外周側に軸方
向に突出した爪状磁極となる複数個の爪部が形成された
一対のランデル型ポールコアの前記爪部を対向させ組み
合わせて形成される内部空間に界磁コイルを挟持し、シ
ャフトに設けられたローレットに嵌合させ一体的に組付
けられた車両用交流発電機の回転子において、前記ポー
ルコＴの外径面と前記界磁コイルの外径面との間にあっ
て、前記爪部の内側面と側面とに当接して略径方向に凹
凸形状で前記界磁コイルの外周を一巡するように略円環
状に形成された非磁性体リングと、前記非磁性体リング
と組み合わされ前記ポールコアの爪部間を埋めて外径面
が同じになるように形成され、それら爪部間の漏洩磁束
を防ぐ向きに着磁された永久磁石とを備えたことを特徴
とする。The structure of the invention for solving the above problem is formed by combining the claw parts of a pair of Lundell type pole cores, each of which has a plurality of claw parts forming claw-shaped magnetic poles protruding in the axial direction on the outer circumferential side, facing each other. In the rotor of a vehicle alternator, which is integrally assembled by sandwiching a field coil in an internal space and fitting it into a knurl provided on a shaft, the outer diameter surface of the pole coil T and the field coil a non-magnetic material formed in a substantially annular shape so as to be in contact with the inner and side surfaces of the claw portion and to have an uneven shape in the substantially radial direction so as to go around the outer periphery of the field coil; a permanent magnet that is combined with the non-magnetic ring and is formed to fill the space between the claws of the pole core so that the outer diameter surfaces thereof are the same, and is magnetized in a direction to prevent magnetic flux leakage between the claws; It is characterized by having the following.
非磁性体リングはポールコアの外径面Ｌ 界磁］イルの
外径面との間にあって、そのポールコアの爪部の内側面
と側面とに当接して略径方向に凹凸形状で界磁コイルの
外周を一巡するように略円環状に形成されている。
又、永久磁石は上記非磁性体リングと組み合わされ上記
ポールコアの爪部間を埋めて外径面が同じになるように
形成され、それら爪部間の漏洩磁束を防ぐ向きに着磁さ
れている。
このように構成された車両用交流発電機の回転子はポー
ルコＴの爪部間が非磁性体リングと永久磁石とでポール
コアの爪部と同じ外径面になるように埋められているの
で、高出力化に加えてポールコア爪音及び風切音が低減
され低騒音化を図ることができる。The non-magnetic ring is located between the outer diameter surface L of the pole core and the outer diameter surface of the field coil, and is in contact with the inner surface and side surface of the claw portion of the pole core, and has an uneven shape approximately in the radial direction, so that the field coil is It is formed in a substantially annular shape so as to go around the outer periphery. Further, the permanent magnet is combined with the non-magnetic ring and is formed to fill the space between the claws of the pole core so that the outer diameter surfaces are the same, and is magnetized in a direction to prevent magnetic flux leakage between the claws. . In the rotor of a vehicle alternator configured in this way, the space between the claws of the pole core T is filled with a non-magnetic ring and a permanent magnet so that the outer diameter surface is the same as the claw of the pole core. In addition to high output, the pole core claw sound and wind noise are reduced, making it possible to reduce noise.
以下、本発明を具体的な実施例に基づいて説明する。
第１図は本発明に係る車両用交流発電機の回転子の構成
を示した縦断面図、第２図は一対のポールコアと非磁性
体リング及び永久磁石とが組付けられた状態を示した部
分斜視図である。又、第３図は内側面に永久磁石が配設
された非磁性体リングを示した部分斜視図、第４図は第
２図のｒＶ−ｒＶ線に沿った部分縦断面図である。
車両用交流発電機の回転子１０は主として、ポールコア
１１．２１と非磁性体リング３１と永久磁石４１と界磁
コイル４５とシャフト４６とファン４８．４９とから構
成されている。
ポールコア１１．２１は外周側に軸方向に突出した爪状
磁極となる複数個の爪部１２．２２がそれぞれ形成され
ている。ポールコア１１．２１は爪部１２．２２を対向
させ組み合わせて形成される内部空間に界磁コイル４５
を挟持し、シャフト４６に設けられたローレフトに嵌合
され一体的に組付けられている。
又、第４図に示したように、非磁性体リング３１はその
側面部３２がポールコア１１．２１の爪部１２．２２の
側面１３．２３に接し、その底部３３が爪部１２，２２
の内側面１４．２４に接し、その外周部３４が対向する
爪部１２．２２の間を埋めると共に爪部１２．２２の外
径面と同じ外径面になるように形成されている。
又、非磁性体リング３１の外周部３４の内側面３５には
それぞれ永久磁石４１が界磁コイル４５と隙間を有して
配設されている。尚、永久磁石４１はポールコア１１．
２１の爪部１２．２２の磁極間の漏洩磁束を防ぐ向きに
着磁させである。
次に、その作用を説明する。
界磁コイル４５により発生した磁束はポールコア１１．
２１を通りポールコア１１．２１の外周面に近接して配
設されたステータ（図示時）に供給されるが、対向する
ポールコア１１．２１（７）爪部１２．２２にも漏洩磁
束として流れる。
ここで、ポールコア１１．２１の爪部１２，２２０間に
永久磁石４１が配設されているので、上記漏洩磁束の一
部を有効磁束として活用でき、結果として漏洩磁束を減
少させることができる。
すると、第５図に示したように、ポールコア１１，２１
の爪部１２，２２の間に永久磁石４１が配設されない場
合に比べて回転数に対する出力電流を増加させることが
できる。
又、上述したように、非磁性体リング３１はポールコア
１１．２１の爪部１２．２２の側面１３゜２３間でそれ
らの隙間を埋めると共にその外周部３４は爪部１２，２
２の外周径と同じになるように形成されている。従って
、この車両用交流発電機の回転子１０は高速回転しても
ポールコア１１゜２１の爪部１２．２２による遠心ファ
ン効果がないので、風切音は起こらない。
更に、非磁性体リング３１と界磁コイル４５との間には
全周に渡って隙間が設けられており、ポールコア１１．
２１内部の通風は損なわれないので、界磁コイル４５の
冷却に悪影響を及ぼすことがない。
又、永久磁石４１にプラスチック磁石を用いることによ
り組付は時や組付は後における磁石の剥がれ及び破損等
を防止することができる。
第６図は本発明に係る非磁性体リング等の第２の実施例
を示した部分斜視図であり、第７図は第６図の非磁性体
リングを用いた第４図に対応し７た部分縦断面図である
。尚、上述の実施例と同様の作用を有するものについて
は、同じ符号を付して説明する
この非磁性体リング３１は樹脂にて形成され、永久磁石
４１がインザート成形されている。
ここで、非磁性体リング３Ｊの外周部３４にポールコア
１１．２１の爪部１２．２２の外径面より大きな部分が
ある場合には、その部分を切削等して凹凸を極力少なく
し、爪部１２，２２の外径面と略同外径面とすることに
より、風切音の低減効果を増すことができる。
又、第８図は本発明に係る非磁性体リング等の第３の実
施例を示した部分縦断面図である。
本実施例では、永久磁石４１がポールコア１１゜２１の
爪部１２．２２の側面１３．２３間を埋めるように直接
接して配設されている。又、非磁性体リング３１は爪部
１２．２２の側面１３．２３及び内側面１４．２４に接
するように形成されている。
そして、非磁性体リング３１にスプリング効果をもたせ
、永久磁石４１に対して常時、押圧力を発生させた状態
で爪部１２．２２の側面１３．２３と挟み込むようにし
ている。このような構成とすることにより、上述の実施
例と同様な効果を得ることができる。
更に、第９図は本発明に係る非磁性体リング等の第４の
実施例を示した部分縦断面図である。
非磁性体リング３１が非磁性金属体、永久磁石４１が金
属磁石にて形成されている場合には、非磁性体リング３
１の内側面３５側に配設される永久磁石４１の周囲面の
うち非磁性体リング３１との当接面の少なくとも一部に
緩衝部材４２或いは接着材を介在させて一体的に構成す
ることにより、非磁性体リング３１と永久磁石４１との
干渉がなくなり、上述の実施例と同様な効果を得ること
ができる。The present invention will be described below based on specific examples. FIG. 1 is a longitudinal sectional view showing the configuration of a rotor of a vehicle alternator according to the present invention, and FIG. 2 shows a state in which a pair of pole cores, a nonmagnetic ring, and a permanent magnet are assembled. FIG. 3 is a partial perspective view showing a non-magnetic ring having a permanent magnet disposed on its inner surface, and FIG. 4 is a partial vertical sectional view taken along the line rV-rV in FIG. 2. The rotor 10 of the vehicle alternator is mainly composed of a pole core 11.21, a non-magnetic ring 31, a permanent magnet 41, a field coil 45, a shaft 46, and a fan 48.49. The pole core 11.21 is provided with a plurality of claw portions 12.22, each of which serves as a claw-shaped magnetic pole, protruding in the axial direction on the outer circumferential side. The pole core 11.21 has a field coil 45 in an internal space formed by combining the claw portions 12.22 facing each other.
It is fitted into the low left provided on the shaft 46 and assembled integrally. Further, as shown in FIG. 4, the side surface portion 32 of the non-magnetic ring 31 is in contact with the side surface 13.23 of the claw portion 12.22 of the pole core 11.21, and the bottom portion 33 thereof is in contact with the side surface 13.23 of the claw portion 12.22 of the pole core 11.21.
The outer circumferential portion 34 is formed to fill the gap between the opposing claw portions 12.22 and to have the same outer diameter surface as the outer diameter surface of the claw portions 12.22. Furthermore, permanent magnets 41 are disposed on the inner surface 35 of the outer peripheral portion 34 of the non-magnetic ring 31 with a gap between them and the field coil 45 . Incidentally, the permanent magnet 41 is attached to the pole core 11.
The claw portions 12 and 22 of 21 are magnetized in a direction that prevents leakage magnetic flux between the magnetic poles. Next, its effect will be explained. The magnetic flux generated by the field coil 45 is transmitted to the pole core 11.
21 and is supplied to the stator (as shown) disposed close to the outer peripheral surface of the pole core 11.21, but it also flows as leakage magnetic flux to the claw portion 12.22 of the opposing pole core 11.21 (7). Here, since the permanent magnet 41 is disposed between the claw portions 12 and 220 of the pole core 11.21, a part of the leakage magnetic flux can be utilized as effective magnetic flux, and as a result, the leakage magnetic flux can be reduced. Then, as shown in FIG.
Compared to the case where the permanent magnet 41 is not disposed between the claw portions 12 and 22, the output current relative to the rotation speed can be increased. Further, as described above, the non-magnetic ring 31 fills the gap between the side surfaces 13.23 of the claw portions 12.22 of the pole core 11.21, and the outer peripheral portion 34 of the non-magnetic ring 31 fills the gap between the side surfaces 13.23 of the claw portions 12.22 of the pole core 11.21.
It is formed to have the same outer circumferential diameter as No. 2. Therefore, even if the rotor 10 of this vehicle alternator rotates at high speed, there is no centrifugal fan effect due to the claw portions 12, 22 of the pole core 11.21, so no wind noise occurs. Furthermore, a gap is provided between the non-magnetic ring 31 and the field coil 45 over the entire circumference, and the pole core 11.
Since the ventilation inside 21 is not impaired, cooling of the field coil 45 is not adversely affected. Further, by using a plastic magnet as the permanent magnet 41, it is possible to prevent the magnet from peeling off or being damaged during or after assembly. FIG. 6 is a partial perspective view showing a second embodiment of the non-magnetic ring, etc. according to the present invention, and FIG. 7 corresponds to FIG. 4 using the non-magnetic ring of FIG. FIG. The non-magnetic ring 31, which will be described with the same reference numerals as those having the same functions as those of the above-described embodiment, is made of resin, and the permanent magnets 41 are insert molded therein. Here, if there is a part in the outer peripheral part 34 of the non-magnetic ring 3J that is larger than the outer diameter surface of the claw part 12.22 of the pole core 11.21, cut that part to reduce irregularities as much as possible, and then By making the outer diameter surface substantially the same as the outer diameter surface of the portions 12 and 22, the effect of reducing wind noise can be increased. Further, FIG. 8 is a partial longitudinal sectional view showing a third embodiment of the non-magnetic ring, etc. according to the present invention. In this embodiment, the permanent magnet 41 is disposed in direct contact with the claw portion 12.22 of the pole core 11.21 so as to fill the space between the side surfaces 13.23. Further, the non-magnetic ring 31 is formed so as to be in contact with the side surface 13.23 and the inner surface 14.24 of the claw portion 12.22. The non-magnetic ring 31 is provided with a spring effect and is sandwiched between the side surfaces 13.23 of the claw portions 12.22 while always generating a pressing force against the permanent magnets 41. With such a configuration, it is possible to obtain the same effects as those of the above-mentioned embodiments. Further, FIG. 9 is a partial vertical sectional view showing a fourth embodiment of the non-magnetic ring, etc. according to the present invention. When the non-magnetic ring 31 is made of a non-magnetic metal and the permanent magnet 41 is made of a metal magnet, the non-magnetic ring 3
A buffer member 42 or an adhesive is interposed on at least a part of the contact surface with the non-magnetic ring 31 of the peripheral surface of the permanent magnet 41 disposed on the inner surface 35 side of the magnet 1. Therefore, interference between the non-magnetic ring 31 and the permanent magnet 41 is eliminated, and the same effects as in the above embodiment can be obtained.
本発明は、ボールコＴの外径面々界磁コイルの外径面と
の間にあって、ポールコアの爪部の内側面と側面とに当
接して略径方向に凹凸形状で界磁コイルの外周を一巡す
るように略円環状に形成された非磁性体リングと、その
非磁性体リングと組み合わされポールコアの爪部間を埋
めて外径面が同じになるように形成され、それら爪部間
の漏洩磁束を防ぐ向きに着磁された永久磁石とを備えて
いるので、ポールコアの爪部間に配設された永久磁石に
より漏洩磁束を減少させ、回転数に対する出力電流を大
きくできると共に非磁性体リングと永久磁石とが組み合
わされポールコアの爪部間を埋めて外径面が同じになる
ように形成されていることによりポールコアの爪音や風
切音による騒音を低減させることができる。更に、永久
磁石は非磁性体リングと組み合わされて形成されている
ことによりポールコアの爪部間に容易且つ確実に保持さ
れるという効果がある。The present invention is provided between the outer diameter surface of the field coil and the outer diameter surface of the field coil, and is in contact with the inner surface and side surface of the claw portion of the pole core, so that the outer periphery of the field coil goes around the outer circumference of the field coil with an uneven shape approximately in the radial direction. A non-magnetic ring formed in a substantially annular shape, which is combined with the non-magnetic ring to fill the space between the claws of the pole core so that the outer diameter surfaces are the same, prevents leakage between the claws. Since it is equipped with a permanent magnet that is magnetized in a direction that prevents magnetic flux, the permanent magnet placed between the claws of the pole core can reduce leakage magnetic flux and increase the output current relative to the rotation speed. By combining the pole core with a permanent magnet and filling the space between the claws of the pole core so that the outer diameter surfaces are the same, it is possible to reduce noise caused by the claw sound of the pole core and wind noise. Furthermore, since the permanent magnet is formed in combination with a non-magnetic ring, it has the effect of being easily and reliably held between the claws of the pole core.
第１図は本発明の具体的な一実施例に係る車両用交流発
電機の回転子の構成を示した縦断面図。
第２図は一対のポールコアと非磁性体リング及び永久磁
石とが組付けられた状態を示した部分斜視図。第３図は
内側面に永久磁石が配設された非磁性体リングを示した
部分斜視図。第４図は第２図のｒＶ−ＩＶ線に沿った部
分縦断面図。第５図は永久磁石の有無による回転数と出
力電流との関係を示した説明図。第６図は本発明に係る
非磁性体リング等の第２の実施例を示した部分斜視図。
第７図は第６図の非磁性体リングを用いた第４図に対応
した部分縦断面図。第８図は本発明に係る非磁性体リン
グ等の第３の実施例を示した部分縦断面図。
第９図は本発明に係る非磁性体リング等の第４の実施例
を示した部分縦断面図である。
０
１１゜
１
５
４８゜
車両用交流発電機の回転子
２１゛・ポールコア １２．２２
非磁性体リング ４１ 永久磁石
界磁コイル ４６ シャフト
４９ ファン
爪部
第２図
第１
１両ｉ！４交７瓦光電機の回りづ
第４図
内イＩ！ｌｌｋ
５
第５図
回転数
第６図
４１
第７図
５
１
Ｌ８図
第９図FIG. 1 is a longitudinal sectional view showing the structure of a rotor of a vehicle alternator according to a specific embodiment of the present invention. FIG. 2 is a partial perspective view showing a state in which a pair of pole cores, a nonmagnetic ring, and a permanent magnet are assembled. FIG. 3 is a partial perspective view showing a non-magnetic ring with permanent magnets disposed on its inner surface. FIG. 4 is a partial longitudinal sectional view taken along the line rV-IV in FIG. 2. FIG. 5 is an explanatory diagram showing the relationship between rotation speed and output current depending on the presence or absence of a permanent magnet. FIG. 6 is a partial perspective view showing a second embodiment of the non-magnetic ring, etc. according to the present invention. FIG. 7 is a partial vertical sectional view corresponding to FIG. 4 using the non-magnetic ring of FIG. 6. FIG. 8 is a partial vertical sectional view showing a third embodiment of the non-magnetic ring, etc. according to the present invention. FIG. 9 is a partial longitudinal sectional view showing a fourth embodiment of the non-magnetic ring, etc. according to the present invention. 0 11゜1 5 48゜ Vehicle alternator rotor 21゛/pole core 12.22 Non-magnetic ring 41 Permanent magnet field coil 46 Shaft 49 Fan claw part Fig. 2 Fig. 1 1 car i! The rotation of the 4-cross 7-wire light electric machine in Figure 4 I! llk 5 Figure 5 Number of revolutions Figure 6 41 Figure 7 5 1 L8 Figure Figure 9
Claims (1)
部が形成された一対のランデル型ポールコアの前記爪部
を対向させ組み合わせて形成される内部空間に界磁コイ
ルを挟持し、シャフトに設けられたローレットに嵌合さ
せ一体的に組付けられた車両用交流発電機の回転子にお
いて、 前記ポールコアの外径面と前記界磁コイルの外径面との
間にあって、前記爪部の内側面と側面とに当接して略径
方向に凹凸形状で前記界磁コイルの外周を一巡するよう
に略円環状に形成された非磁性体リングと、前記非磁性
体リングと組み合わされ前記ポールコアの爪部間を埋め
て外径面が同じになるように形成され、それら爪部間の
漏洩磁束を防ぐ向きに着磁された永久磁石とを備えたこ
とを特徴とする車両用交流発電機の回転子。[Scope of Claims] A field is placed in an internal space formed by opposing and combining the claws of a pair of Lundell-type pole cores, each of which has a plurality of claws forming claw-like magnetic poles protruding in the axial direction on the outer circumferential side. In a rotor of a vehicle alternator which is integrally assembled by sandwiching a coil and fitting into a knurling provided on a shaft, there is a gap between an outer diameter surface of the pole core and an outer diameter surface of the field coil. a non-magnetic ring formed in a substantially annular shape so as to be in contact with the inner surface and the side surface of the claw portion and to have an uneven shape in the substantially radial direction so as to go around the outer periphery of the field coil, and the non-magnetic material It is characterized by comprising a permanent magnet that is combined with the ring and is formed to fill the space between the claws of the pole core so that the outer diameter surfaces are the same, and is magnetized in a direction to prevent magnetic flux leakage between the claws. The rotor of a vehicle alternator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2062001A JP2785423B2 (en) | 1990-03-13 | 1990-03-13 | Rotor of vehicle alternator and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2062001A JP2785423B2 (en) | 1990-03-13 | 1990-03-13 | Rotor of vehicle alternator and method of manufacturing the same |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9059432A Division JP2865092B2 (en) | 1997-03-13 | 1997-03-13 | AC generator |
| JP9059431A Division JP2865091B2 (en) | 1997-03-13 | 1997-03-13 | Alternator and method of manufacturing the same |
| JP9059434A Division JP2783264B2 (en) | 1997-03-13 | 1997-03-13 | AC generator |
| JP9059435A Division JP2865094B2 (en) | 1997-03-13 | 1997-03-13 | AC generator |
| JP9059433A Division JP2865093B2 (en) | 1997-03-13 | 1997-03-13 | AC generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03265450A true JPH03265450A (en) | 1991-11-26 |
| JP2785423B2 JP2785423B2 (en) | 1998-08-13 |
Family
ID=13187484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2062001A Expired - Lifetime JP2785423B2 (en) | 1990-03-13 | 1990-03-13 | Rotor of vehicle alternator and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2785423B2 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483116A (en) * | 1993-08-30 | 1996-01-09 | Nippondenso Co., Ltd. | Rotor for a rotating electric machine |
| JPH089608A (en) * | 1994-06-22 | 1996-01-12 | Washin Ouchi | Self-excited brushless generator |
| JPH08223882A (en) * | 1994-12-22 | 1996-08-30 | General Motors Corp <Gm> | Rotor assembly of hybrid ac machine |
| EP0732795A2 (en) * | 1995-03-16 | 1996-09-18 | Ford Motor Company | Rotating electrical machine |
| JPH10201149A (en) * | 1997-01-14 | 1998-07-31 | Denso Corp | Lundell core type rotary electric machine |
| US5793144A (en) * | 1993-08-30 | 1998-08-11 | Nippondenso Co., Ltd. | Rotor for a rotating electric machine |
| WO1998040959A1 (en) * | 1997-03-13 | 1998-09-17 | Denso Corporation | Ac power generating system for vehicle |
| US5828155A (en) * | 1995-12-08 | 1998-10-27 | Mitsubishi Denki Kabushiki Kaisha | Alternating current generator |
| JPH1141887A (en) * | 1997-07-22 | 1999-02-12 | Denso Corp | Synchronous rotating machine including permanent magnet |
| US5907209A (en) * | 1997-01-16 | 1999-05-25 | Denso Corporation | Lundell core type rotary electric machine |
| US5973435A (en) * | 1997-05-07 | 1999-10-26 | Denso Corporation | Rotary electric machine having auxiliary permanent magnets |
| US6037695A (en) * | 1994-03-23 | 2000-03-14 | Hitachi, Ltd. | Vehicle alternator having improved rotating yoke |
| US6104118A (en) * | 1998-03-05 | 2000-08-15 | Hitachi, Ltd. | Alternating current generator for use in vehicle |
| US6512249B2 (en) * | 2001-02-26 | 2003-01-28 | Seiko Epson Corporation | Light emitting device, display device, and electronic appliance |
| US6674188B2 (en) | 2002-03-01 | 2004-01-06 | Visteon Global Technologies, Inc. | Liquid cooled alternator |
| US6680552B2 (en) | 2002-01-24 | 2004-01-20 | Visteon Global Technologies, Inc. | Flow path for a liquid cooled alternator |
| FR2932325A1 (en) * | 2008-06-06 | 2009-12-11 | Valeo Equip Electr Moteur | Rotor for e.g. polyphase type alternator, of thermal engine of motor vehicle, has magnetic assembly with ferrite material magnet, whose total surface is lower than surface defined by product of radial face height of assembly |
| US8198777B2 (en) | 2008-08-29 | 2012-06-12 | Denso Corporation | Automotive alternator with magnet holder |
| US8283833B2 (en) | 2008-10-31 | 2012-10-09 | Denso Corporation | Rotor for electric rotary machine |
-
1990
- 1990-03-13 JP JP2062001A patent/JP2785423B2/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5925964A (en) * | 1993-08-30 | 1999-07-20 | Denso Corporation | Rotor for a rotating electric machine |
| US5793144A (en) * | 1993-08-30 | 1998-08-11 | Nippondenso Co., Ltd. | Rotor for a rotating electric machine |
| US5483116A (en) * | 1993-08-30 | 1996-01-09 | Nippondenso Co., Ltd. | Rotor for a rotating electric machine |
| US6037695A (en) * | 1994-03-23 | 2000-03-14 | Hitachi, Ltd. | Vehicle alternator having improved rotating yoke |
| JPH089608A (en) * | 1994-06-22 | 1996-01-12 | Washin Ouchi | Self-excited brushless generator |
| JPH08223882A (en) * | 1994-12-22 | 1996-08-30 | General Motors Corp <Gm> | Rotor assembly of hybrid ac machine |
| EP0732795A2 (en) * | 1995-03-16 | 1996-09-18 | Ford Motor Company | Rotating electrical machine |
| EP0732795A3 (en) * | 1995-03-16 | 1998-04-08 | Ford Motor Company | Rotating electrical machine |
| US5828155A (en) * | 1995-12-08 | 1998-10-27 | Mitsubishi Denki Kabushiki Kaisha | Alternating current generator |
| JPH10201149A (en) * | 1997-01-14 | 1998-07-31 | Denso Corp | Lundell core type rotary electric machine |
| US5969459A (en) * | 1997-01-14 | 1999-10-19 | Denso Corporation | Rotary electric machine having Lundell type core |
| US5907209A (en) * | 1997-01-16 | 1999-05-25 | Denso Corporation | Lundell core type rotary electric machine |
| WO1998040959A1 (en) * | 1997-03-13 | 1998-09-17 | Denso Corporation | Ac power generating system for vehicle |
| US5973435A (en) * | 1997-05-07 | 1999-10-26 | Denso Corporation | Rotary electric machine having auxiliary permanent magnets |
| JPH1141887A (en) * | 1997-07-22 | 1999-02-12 | Denso Corp | Synchronous rotating machine including permanent magnet |
| US6104118A (en) * | 1998-03-05 | 2000-08-15 | Hitachi, Ltd. | Alternating current generator for use in vehicle |
| US6512249B2 (en) * | 2001-02-26 | 2003-01-28 | Seiko Epson Corporation | Light emitting device, display device, and electronic appliance |
| US6680552B2 (en) | 2002-01-24 | 2004-01-20 | Visteon Global Technologies, Inc. | Flow path for a liquid cooled alternator |
| US6674188B2 (en) | 2002-03-01 | 2004-01-06 | Visteon Global Technologies, Inc. | Liquid cooled alternator |
| FR2932325A1 (en) * | 2008-06-06 | 2009-12-11 | Valeo Equip Electr Moteur | Rotor for e.g. polyphase type alternator, of thermal engine of motor vehicle, has magnetic assembly with ferrite material magnet, whose total surface is lower than surface defined by product of radial face height of assembly |
| US8198777B2 (en) | 2008-08-29 | 2012-06-12 | Denso Corporation | Automotive alternator with magnet holder |
| US8283833B2 (en) | 2008-10-31 | 2012-10-09 | Denso Corporation | Rotor for electric rotary machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2785423B2 (en) | 1998-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |