JPH03235644A - Vehicle alternator - Google Patents
Vehicle alternatorInfo
- Publication number
- JPH03235644A JPH03235644A JP2605990A JP2605990A JPH03235644A JP H03235644 A JPH03235644 A JP H03235644A JP 2605990 A JP2605990 A JP 2605990A JP 2605990 A JP2605990 A JP 2605990A JP H03235644 A JPH03235644 A JP H03235644A
- Authority
- JP
- Japan
- Prior art keywords
- drip
- cooling air
- proof cover
- regulator
- rear bracket
- 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
- 238000001816 cooling Methods 0.000 claims description 29
- 238000004804 winding Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
- Synchronous Machinery (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、車両用交流発電機に係り、特に冷却性向上に
好適な防滴カバーに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vehicle alternator, and particularly to a drip-proof cover suitable for improving cooling performance.
従来の防滴カバーは実開昭６１−１７８４９号公報に記
載のように、防滴のみを目的とし、車両用交流発電機の
冷却性向上については、配慮されていなかった。As described in Japanese Utility Model Application Publication No. 61-17849, conventional drip-proof covers are intended only for drip-proofing, and no consideration has been given to improving the cooling performance of a vehicle alternator.
上記従来技術は、防滴カバーの冷却性能向上について配
慮されておらず、防滴カバー装着時リヤブラケットの冷
却風吸入窓は防滴カバーで覆われるため、吸入窓の通風
抵抗が増え、リヤブラケットに内蔵されているＩＣレギ
ュレータの温度上昇値が増大するという問題があった。The above conventional technology does not consider improving the cooling performance of the drip-proof cover, and when the drip-proof cover is attached, the cooling air intake window of the rear bracket is covered with the drip-proof cover, so the ventilation resistance of the intake window increases, and the rear bracket There was a problem in that the temperature rise value of the IC regulator built into the device increased.
本発明の目的は防滴カバー装着時に冷却風を効率よ＜Ｉ
Ｃレギュレータ部に流し冷却性能を向上させる事にある
。The purpose of the present invention is to improve cooling air efficiency when installing a drip-proof cover.
The purpose is to flow into the C regulator section to improve cooling performance.
上記目的は、防滴カバーのリブを延長し、リヤブラケッ
トＩＣレギュレータ部の冷却風吸入窓に流れ込む冷却風
のガイ１−とする事により達成できる。The above object can be achieved by extending the ribs of the drip-proof cover to form a cooling air guide 1- which flows into the cooling air intake window of the rear bracket IC regulator section.
上記防滴カバーは、防滴カバーとリヤブラケットとの間
を流れる冷却風をガイド用として延長したリブがとらえ
、その冷却風はリヤブラケットＩＣレギュレータ部の冷
却風吸入窓のみに導入されるため、ＩＣレギュレータを
冷却する風の風量はガイド用リブが無い物に比べ増大す
る。それによってＩＣレギュレータの冷却性能の向上が
可能となる。The drip-proof cover has an extended rib that serves as a guide to catch the cooling air flowing between the drip-proof cover and the rear bracket, and the cooling air is introduced only to the cooling air intake window of the rear bracket IC regulator. The amount of air that cools the IC regulator is increased compared to one without guide ribs. This makes it possible to improve the cooling performance of the IC regulator.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
第１図は本実施例の車両用交流発電機の縦断面図を示す
。発電機の外殻をなすフロントブラケット７、リャブラ
ケッｌ−８は固定子巻線５を有する固定子６を挟持する
。回転子３は複数の爪形磁極を有する一対のランデル形
ポールコアｌａ、ｌｂを有しており、そのポールコアｌ
ａ、ｌｂは回転子巻線２を挟持している。また回転子３
は軸１４を有し、軸受１３ａ、１３ｂにより回転自在に
支持されている。冷却用ファン４ａ、４ｂはポールコア
ｌａ、ｌｂの反回転子巻線側の側面に設置されている。FIG. 1 shows a longitudinal sectional view of the vehicle alternator of this embodiment. A front bracket 7 and a rear bracket 1-8, which form the outer shell of the generator, sandwich a stator 6 having a stator winding 5. The rotor 3 has a pair of Lundell-shaped pole cores la and lb having a plurality of claw-shaped magnetic poles, and the pole core l
a and lb sandwich the rotor winding 2. Also rotor 3
has a shaft 14 and is rotatably supported by bearings 13a and 13b. The cooling fans 4a, 4b are installed on the side surfaces of the pole cores la, lb on the side opposite to the rotor windings.
また発電電圧を一定に保つためのＩＣ１ノギユレータ１
２はリヤブラケット８の内側に配置されている。さらに
発電機内部に泥、水の浸入を阻止する防腐カバー１０は
、リヤブラケット８の外側を覆うように配置されている
。Also, IC1 noguulator 1 to keep the generated voltage constant
2 is arranged inside the rear bracket 8. Further, an antiseptic cover 10 that prevents mud and water from entering the generator is arranged to cover the outside of the rear bracket 8.
従来は防滴カバー１０を装着すると、冷却風吸入窓９の
通風抵抗が増え、耐熱性の低い半導体部品である工Ｃレ
ギュレータ１２の冷却性能が悪化し温度が上昇するとい
う問題があった。Conventionally, when the drip-proof cover 10 is attached, there has been a problem that the ventilation resistance of the cooling air intake window 9 increases, and the cooling performance of the C regulator 12, which is a semiconductor component with low heat resistance, deteriorates and the temperature rises.
本実施例によれば、防滴カバー１０のリブを延長し、冷
却風のガイド１１とする事により、回転子３と冷却ファ
ン４ａ、４ｂが回転すると風の流れ１５は、リブを延長
したガイド１１により、リヤブラケット８の冷却風吸入
窓９のみに集中して流れ込む構造としたため冷却風吸入
窓９の通風量が増大される。これにより、冷却風吸入窓
９の内側に配置されるＩＣレギュレータ１２の表面から
熱放出が盛んに行なわれ、前記ＩＣレギュレータ１２の
冷却性能が向上される。その冷却性能向上の効果を第２
図に示し、ガイｌ−１１がない物に比へ、約８℃の温度
上昇低減の効果がある。According to this embodiment, by extending the ribs of the drip-proof cover 10 and using them as cooling air guides 11, when the rotor 3 and the cooling fans 4a and 4b rotate, the air flow 15 is guided by the extended ribs. 11, the air flows through the cooling air intake window 9 of the rear bracket 8 in a concentrated manner, so that the amount of ventilation through the cooling air intake window 9 is increased. As a result, heat is actively released from the surface of the IC regulator 12 disposed inside the cooling air intake window 9, and the cooling performance of the IC regulator 12 is improved. The second is the effect of improving cooling performance.
As shown in the figure, there is an effect of reducing the temperature rise by about 8°C compared to the one without GaI-11.
また、第３図は防滴カバー１０の詳細を示す。Further, FIG. 3 shows details of the drip-proof cover 10.
本発明によれば、防滴カバーのリブを延長して冷却風の
ガイドとする事により、防滴カバーとリヤブラケット間
を流れる冷却風を前記ガイド用リブがとらえ、その冷却
風はリヤブラケットＩＣレギュレータ部の冷却風吸入窓
のみに導入される。According to the present invention, by extending the ribs of the drip-proof cover to guide the cooling air, the guide ribs catch the cooling air flowing between the drip-proof cover and the rear bracket, and the cooling air is directed to the rear bracket IC. It is introduced only to the cooling air intake window of the regulator section.
これによりＩＣレギュレータの表面から熱放出が盛んに
行なわれるので、ＩＣレギュレータの冷却性能を向上さ
せる効果がある。As a result, heat is actively released from the surface of the IC regulator, which has the effect of improving the cooling performance of the IC regulator.
第１図は本発明の一実施例の車両用交流発電機の縦断面
図、第２図は本発明の一実施例の効果を表わす図、第３
図は防滴カバーの詳細を示す図である。FIG. 1 is a longitudinal sectional view of a vehicle alternator according to an embodiment of the present invention, FIG. 2 is a diagram showing the effects of an embodiment of the present invention, and FIG.
The figure is a diagram showing details of the drip-proof cover.
Claims (1)
アに挟持され、且つ内包された電機子巻線を有する回転
子と、前記回転子の両端面に冷却用ファンを有する車両
用交流発電機において、リヤブラケット後端に樹脂製の
防滴カバーを有し、そのカバーのリブを延長し冷却風の
ガイドとした事を特徴とする車両用交流発電機。1. In a vehicle alternator having a rotor having an armature winding sandwiched between and contained in a pair of Lundell-shaped pole cores having a plurality of claw-shaped magnetic poles, and cooling fans on both end faces of the rotor. An alternator for a vehicle, characterized in that it has a drip-proof cover made of resin at the rear end of the rear bracket, and the ribs of the cover are extended to serve as a guide for cooling air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2605990A JPH03235644A (en) | 1990-02-07 | 1990-02-07 | Vehicle alternator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2605990A JPH03235644A (en) | 1990-02-07 | 1990-02-07 | Vehicle alternator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03235644A true JPH03235644A (en) | 1991-10-21 |
Family
ID=12183114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2605990A Pending JPH03235644A (en) | 1990-02-07 | 1990-02-07 | Vehicle alternator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03235644A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827257A1 (en) * | 1996-08-29 | 1998-03-04 | Sawafuji Electric Co., Ltd. | Drip-proof structure for engine generator |
| EP0881743A3 (en) * | 1997-05-26 | 1999-01-27 | Denso Corporation | AC generator for vehicles |
| EP0881744A3 (en) * | 1997-05-26 | 1999-10-20 | Denso Corporation | Alternator for vehicle |
| US6124660A (en) * | 1997-05-26 | 2000-09-26 | Denso Corporation | AC generator for vehicles |
| US6137201A (en) * | 1997-05-26 | 2000-10-24 | Denso Corporation | AC generator for vehicles |
| US6181043B1 (en) | 1997-12-10 | 2001-01-30 | Denso Corporation | Alternator for vehicle |
| 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 |
| EP0923187B2 (en) † | 1997-12-10 | 2012-08-15 | Denso Corporation | Alternator for a vehicle |
| JP2017195696A (en) * | 2016-04-20 | 2017-10-26 | 三菱電機株式会社 | Dynamo-electric machine for vehicle |
-
1990
- 1990-02-07 JP JP2605990A patent/JPH03235644A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827257A1 (en) * | 1996-08-29 | 1998-03-04 | Sawafuji Electric Co., Ltd. | Drip-proof structure for engine generator |
| EP0881743A3 (en) * | 1997-05-26 | 1999-01-27 | Denso Corporation | AC generator for vehicles |
| EP0881744A3 (en) * | 1997-05-26 | 1999-10-20 | Denso Corporation | Alternator for vehicle |
| US6124660A (en) * | 1997-05-26 | 2000-09-26 | Denso Corporation | AC generator for vehicles |
| US6137201A (en) * | 1997-05-26 | 2000-10-24 | Denso Corporation | AC generator for vehicles |
| US6291918B1 (en) | 1997-05-26 | 2001-09-18 | Denso Corporation | Alternator for vehicle |
| US6181043B1 (en) | 1997-12-10 | 2001-01-30 | Denso Corporation | Alternator for vehicle |
| EP0923187B2 (en) † | 1997-12-10 | 2012-08-15 | Denso Corporation | Alternator for a vehicle |
| 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 |
| JP2017195696A (en) * | 2016-04-20 | 2017-10-26 | 三菱電機株式会社 | Dynamo-electric machine for vehicle |
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