JPH0546183B2 - - Google Patents
Info
- Publication number
- JPH0546183B2 JPH0546183B2 JP16119487A JP16119487A JPH0546183B2 JP H0546183 B2 JPH0546183 B2 JP H0546183B2 JP 16119487 A JP16119487 A JP 16119487A JP 16119487 A JP16119487 A JP 16119487A JP H0546183 B2 JPH0546183 B2 JP H0546183B2
- Authority
- JP
- Japan
- Prior art keywords
- generator
- front bracket
- fitting means
- engine case
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000005284 excitation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000004512 die casting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は車両用発電機に係り、特に発電機本体
がエンジンケース側に嵌合取付けられる方式のも
のに好適な車両用発電機に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a vehicular generator, and particularly relates to a vehicular generator suitable for a type in which the generator body is fitted and attached to an engine case side. be.
〔従来の技術〕
一般に車両用交流発電機は、例えば実開昭61−
120260号公報等に開示されるように、発電機本体
に内装される回転子の両側面に冷却用のフアンを
配設し、発電機のフロントブラケツト、リヤブラ
ケツト等に吸気窓、排気窓を形成し、フアンを回
転子と共に回転させて吸気窓から外部の冷却風を
導入し、回転子の励磁コイル、固定子の発電コイ
ル等の部品を冷却させつつ冷却風を排気窓から排
出させている。また、この種の車両用発電機に
は、フロントブラケツト側面の外周に近い部分に
発電機取付用の嵌合手段（インロー部）を一体に
突出形成し、発電機の取付けに際して、この嵌合
手段をエンジンケース側の発電機取付箇所に嵌合
させて、発電機をエンジンケース側にボルト締め
等して発電機の取付けを行なう方式のものがあ
る。[Prior Art] In general, vehicle alternators are
As disclosed in Publication No. 120260, etc., cooling fans are installed on both sides of the rotor built into the generator body, and intake and exhaust windows are formed in the front bracket, rear bracket, etc. of the generator. The fan is rotated together with the rotor to introduce external cooling air through the intake window, and the cooling air is discharged through the exhaust window while cooling parts such as the excitation coil of the rotor and the power generation coil of the stator. Furthermore, in this type of vehicle generator, a fitting means (spigot part) for attaching the generator is integrally formed protruding from a part near the outer periphery of the side surface of the front bracket, and when the generator is attached, the fitting means There is a method in which the generator is installed by fitting the generator into the generator attachment location on the engine case side and tightening bolts or the like to the engine case side.
ところで、前述の如き車両用発電機の取付構造
では、フロントブラケツトの側面一部が嵌合手段
と共にエンジンケース側に嵌合されるため、フロ
ントブラケツト側面はエンジンケース側の潤滑油
侵入を防止する必要があり、そのため、フロント
ブラケツトの側面が塞がれた形状となり、フロン
トブラケツト側面から冷却風を導入することが構
造的に不可能であつた。その結果、特に回転子の
フロント側の励磁コイル部や、固定子鉄心に嵌装
されたフロント側の発電コイル等の熱源を充分に
冷却できず、発電機の出力を大きくすることが困
難であつた。以上の事情を配慮して従来は実開昭
61−120260号等に開示されるように、フロントブ
ラケツトに吸排気兼用の冷却窓を設ける等の試み
もなされているが、冷却窓を仕切る必要があるた
め、構造が複雑で部品の組立工程数が増加する傾
向があつた。
By the way, in the mounting structure of the vehicle generator as described above, a part of the side surface of the front bracket is fitted into the engine case side together with the fitting means, so it is necessary to prevent lubricant oil from entering the engine case side on the side surface of the front bracket. As a result, the sides of the front bracket are closed, making it structurally impossible to introduce cooling air from the sides of the front bracket. As a result, heat sources such as the excitation coil section on the front side of the rotor and the front generation coil fitted in the stator core cannot be sufficiently cooled, making it difficult to increase the output of the generator. Ta. Taking into account the above circumstances, the conventional method was Jikaisho.
As disclosed in No. 61-120260, attempts have been made to provide a cooling window for both intake and exhaust functions on the front bracket, but since the cooling window needs to be partitioned, the structure is complicated and the number of parts assembly steps is required. There was a tendency to increase.
本発明は以上の点に鑑みてなされたものであ
り、その目的とするところは、発電機がエンジン
ケース側に嵌合取付される方式の車両用発電機に
おいて、簡潔な構造を呈しつつ発電機の冷却効果
を向上させると共に、フロントブラケツト等の成
形加工を容易にして生産性を向上させることので
きる車両用発電機を提供することにある。 The present invention has been made in view of the above points, and an object of the present invention is to provide a generator for a vehicle in which the generator is fitted and attached to the engine case side, while exhibiting a simple structure. It is an object of the present invention to provide a generator for a vehicle that can improve the cooling effect of the front bracket and facilitate the molding process of front brackets and the like to improve productivity.
上記目的は、次のような手段を講じることで達
成される。以下、本発明を内容の理解を容易にす
るため、第１図の実施例の符号を引用して説明す
る。
The above objective is achieved by taking the following measures. Hereinafter, in order to facilitate understanding of the present invention, the present invention will be described with reference to the reference numerals of the embodiment shown in FIG.
すなわち、本発明は、上記目的を達成するため
に、発電機のフロントブラケツト１の側面にエン
ジンケース１９側に嵌合される発電機取付用の嵌
合手段１８を設け、発電機の本体に内装される回
転子１２の両側面には、冷却用のフアン１３，１
３′を固着してなる内扇形の車両用発電機におい
て、フロントブラケツト１と嵌合手段１８とは、
別個に成形された成形よりなり、且つ嵌合手段１
８は、エンジンケース１９の一部に嵌合するフラ
ンジ部１８ａと、発電機の回転子軸７をエンジン
ケース１９側に導く挿通孔１８と、フロントブラ
ケツト１の軸受箱１０に嵌合して回転子軸７のフ
ロント軸受８の一側を挾持する挾持部１８ｃとを
有する環状体で構成され、この嵌合手段１８をフ
ロントブラケツト１の側面に固着部材２１を介し
て取付けると共に、フロントブラケツト１の側面
と嵌合手段１８との間には所定の間隙Ｇを確保
し、一方、フロントブラケツト１の側面には、間
隙Ｇを通して外部空気を吸入するための冷却風吸
気窓１４を配設するものである。 That is, in order to achieve the above object, the present invention provides a fitting means 18 for attaching the generator that is fitted to the engine case 19 side on the side surface of the front bracket 1 of the generator, and an internal fitting means 18 is provided in the main body of the generator. Cooling fans 13, 1 are installed on both sides of the rotor 12.
3', the front bracket 1 and the fitting means 18 are as follows:
The fitting means 1 is made of a separately molded molding, and the fitting means 1
Reference numeral 8 designates a flange portion 18a that fits into a part of the engine case 19, an insertion hole 18 that guides the rotor shaft 7 of the generator toward the engine case 19, and a bearing box 10 of the front bracket 1 that fits in and rotates. It is composed of an annular body having a clamping part 18c that clamps one side of the front bearing 8 of the child shaft 7, and this fitting means 18 is attached to the side surface of the front bracket 1 via the fixing member 21, and A predetermined gap G is secured between the side surface and the fitting means 18, and a cooling air intake window 14 is provided on the side surface of the front bracket 1 for sucking outside air through the gap G. be.
このような構成よりなる本発明によれば、発電
機をエンジンケース１９側に取付ける場合におい
て、嵌合手段１８のフランジ１８ａをエンジンケ
ース１９側に嵌合させても、フロントブラケツト
１の側面は嵌合手段１８と間隙Ｇ分だけ離れて配
置されるので、フロントブラケツト１の側面がエ
ンジンケース１９側に嵌合されず、その結果、フ
ロントブラケツト１の側面を塞ぐ必要性がなくな
り、フロントブラケツト１の側面に吸気窓１４を
配設することが可能となる。また、フロントブラ
ケツト１の側面と嵌合手段１８との間に間隙Ｇを
確保し、フロントブラケツト１の側面に冷却風吸
気窓１４を配設することから、簡潔な構造を呈し
て充分な冷却風吸入面積を確保でき、フアン１３
の回転時に冷却風を間隙Ｇ及び冷却風吸気窓１４
を通して発電機内部に効率良く吸入することがで
き、特に従来冷却不足がちとなり易かつたフロン
ト側の励磁コイル、発電コイル等の熱源を充分に
冷却し、発電機の出力を大幅に向上させることが
できる。
According to the present invention having such a configuration, when the generator is attached to the engine case 19 side, even if the flange 18a of the fitting means 18 is fitted to the engine case 19 side, the side surface of the front bracket 1 is not fitted. Since it is disposed apart from the fitting means 18 by the gap G, the side surface of the front bracket 1 is not fitted to the engine case 19 side, and as a result, there is no need to close the side surface of the front bracket 1, and the front bracket 1 is It becomes possible to arrange the intake window 14 on the side surface. Furthermore, since a gap G is secured between the side surface of the front bracket 1 and the fitting means 18, and a cooling air intake window 14 is provided on the side surface of the front bracket 1, the structure is simple and sufficient cooling air can be obtained. Suction area can be secured, fan 13
When rotating, the cooling air is passed through the gap G and the cooling air intake window 14.
Through this system, heat can be efficiently drawn into the generator, which can sufficiently cool heat sources such as the excitation coil and generating coil on the front side, which tend to be insufficiently cooled in the past, thereby significantly improving the output of the generator. can.
また、フロントブラケツト１と嵌合手段１８と
は、予め別個に成形されたものを後で組立てるも
のであるため、フロントブラケツト１単体は単純
な形状となり、金型の構造が簡単になり、その結
果、ダイカスト等による成形加工が簡単に行い得
ると共に、鋳ばり、鋳巣の発生を防止することが
できる。また、嵌合手段８も単純形状の環状体で
成形されることから同様にして成形加工を容易に
行い得る。 Furthermore, since the front bracket 1 and the fitting means 18 are molded separately in advance and then assembled later, the front bracket 1 itself has a simple shape, and the structure of the mold is simplified. , molding by die casting, etc. can be easily performed, and the generation of flash and cavities can be prevented. Further, since the fitting means 8 is also formed from a simple annular body, it can be easily formed in the same manner.
本発明の一実施例を第１図及び第２図に基づき
説明する。
An embodiment of the present invention will be described based on FIGS. 1 and 2.
第１図は本発明の一実施例を示す縦断面図、第
２図は上記実施例に用いるフロントブラケツトと
発電機取付用嵌合手段との結合状態を示す縦断面
図である。 FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view showing a state in which a front bracket and a generator mounting fitting means used in the above-mentioned embodiment are connected.
第１図において、１はフロントブラケツト、２
はリヤブラケツトで、双方共にアルミニウム合金
をダイカストすることにより成形される。フロン
トブラケツト１とリヤブラケツト２との間には、
発電コイル３が巻装された固定子鉄心４が挾持さ
れている。 In Figure 1, 1 is the front bracket, 2
is the rear bracket, and both are molded by die-casting aluminum alloy. Between front bracket 1 and rear bracket 2,
A stator core 4 around which a power generating coil 3 is wound is held between the stator cores 4 and 4.
リヤブラケツト２には、ブラシ５ａが収納され
たブラシホルダー５と、発電コイル３で発生した
交流電圧を直流に変換し、且つ発生電圧を一定に
する機能を有する整流器組込み電圧調整器６とが
組込まれている。 The rear bracket 2 incorporates a brush holder 5 in which a brush 5a is housed, and a voltage regulator 6 with a built-in rectifier that has the function of converting the alternating current voltage generated by the generator coil 3 into direct current and keeping the generated voltage constant. It is.
７は回転子軸で回転子軸７の両側には、軸受
８，９が嵌着されており、一方、フロントブラケ
ツト１及びリヤブラケツト２の中央内側には、軸
受箱１０，１１が形成され、この軸受箱１０，１
１の内周に軸受８，９の外輪が固定されている。 Reference numeral 7 denotes a rotor shaft, and bearings 8 and 9 are fitted on both sides of the rotor shaft 7, while bearing boxes 10 and 11 are formed inside the center of the front bracket 1 and rear bracket 2. This bearing box 10,1
Outer rings of bearings 8 and 9 are fixed to the inner periphery of bearing 1.
１２は回転子軸７のほぼ中央部に固定配置され
た回転子で、回転子１２は一対の瓜形の回転子鉄
心１２ａ，１２ｂと、鉄心１２ａ，１２ｂ間に挾
持される励磁コイル１２ｃとよりなる。回転子鉄
心１２ａ，１２ｂの外周と固定子鉄心４の内周と
の間には、微少隙間が確保され、回転子１２は、
この微少隙間を保ちつつ回転子軸７と一体に回転
する。また、回転子鉄心１２ａ，１２ｂの両側面
には、冷却フアン１３，１３′が夫々固着されて
いる。 Reference numeral 12 denotes a rotor fixedly arranged approximately at the center of the rotor shaft 7, and the rotor 12 is composed of a pair of melon-shaped rotor cores 12a, 12b and an excitation coil 12c held between the cores 12a, 12b. Become. A minute gap is ensured between the outer periphery of the rotor cores 12a, 12b and the inner periphery of the stator core 4, and the rotor 12
It rotates together with the rotor shaft 7 while maintaining this minute gap. Furthermore, cooling fans 13 and 13' are fixed to both side surfaces of the rotor cores 12a and 12b, respectively.
フロントブラケツト１及びリヤブラケツト２の
側面には、スリツト状の吸気窓１４，１５の夫々
が周方向に多数配設され、また、フロントブラケ
ツト１及びリヤブラケツト２の外 周に排気窓１
６，１７の夫々が配設されており、冷却フアン１
３，１３′の回転時に吸気窓１４，１５の夫々が
外部から冷却風を導入し、排気窓１６，１７が冷
却風を排出する。 A large number of slit-shaped intake windows 14 and 15 are arranged in the circumferential direction on the side surfaces of the front bracket 1 and the rear bracket 2, respectively, and an exhaust window 1 is provided on the outer periphery of the front bracket 1 and the rear bracket 2.
6 and 17 are arranged respectively, and the cooling fan 1
3 and 13', each of the intake windows 14 and 15 introduces cooling air from the outside, and the exhaust windows 16 and 17 discharge the cooling air.
１８は車両用交流発電機をエンジンケース１９
側に取付ける際に嵌合案内させる嵌合手段で、嵌
合手段１８はエンジンケース１９の一部に嵌合す
るフランジ部１８ａと、回転子軸７をエンジンケ
ース１９側に導く挿通孔１８ｂと、フロントブラ
ケツト１の軸受箱１０に嵌合してフロント側軸受
８の一端を挾持する挾持部１８ｃとを有する環状
体で構成される。嵌合手段１８のフランジ部１８
ａ外周には、Ｏリング２０が嵌装される溝１８ｄ
が設けられ、Ｏリング２０を介在することでエン
ジンケース１９の内周とフランジ部１８ａの外周
とで気密性が保たれる。また、挾持部１８ｃは、
嵌合手段１８の一側面に挿通孔１８ｂに沿つて環
状に突出成形され、その外径はフロント側軸受８
の外輪とほぼ同径に設定される。 18 is a vehicle alternator engine case 19
The fitting means 18 includes a flange portion 18a that fits into a part of the engine case 19, and an insertion hole 18b that guides the rotor shaft 7 to the engine case 19 side. It is composed of an annular body having a clamping part 18c that fits into the bearing box 10 of the front bracket 1 and clamps one end of the front side bearing 8. Flange portion 18 of fitting means 18
On the outer periphery of a, there is a groove 18d into which the O-ring 20 is fitted.
By interposing the O-ring 20, airtightness is maintained between the inner periphery of the engine case 19 and the outer periphery of the flange portion 18a. Moreover, the clamping portion 18c is
An annular protrusion is formed on one side of the fitting means 18 along the insertion hole 18b, and its outer diameter is the same as that of the front side bearing 8.
The diameter is set to be approximately the same as the outer ring.
このフロントブラケツト１の側面に嵌合手段１
８を取付ける場合には、フロントブラケツト１及
び嵌合手段１８を予め別体成形した後に、第２図
に示す如くフロントブラケツト１の軸受箱１０内
周に嵌合手段１８の挾持部１８ｃを嵌合させつ
つ、フロントブラケツト１と嵌合手段１８とを複
数個のねじ２１で結合させて取付けを行なうもの
で、また、この取付構造において、嵌合手段１８
の一側面がフロント側軸受箱１０の一端に当接し
て、フロントブラケツト１の側面と嵌合手段１８
の一側面との間に所定の間隙Ｇが確保されると共
に、軸受８は、軸受箱１０の内側一端と嵌合手段
１８の挾持部１８ｃとの共働作用により挾持され
る。 A fitting means 1 is attached to the side surface of this front bracket 1.
8, the front bracket 1 and the fitting means 18 are molded separately in advance, and then the holding part 18c of the fitting means 18 is fitted to the inner periphery of the bearing box 10 of the front bracket 1 as shown in FIG. The front bracket 1 and the fitting means 18 are connected together with a plurality of screws 21 for installation.
One side is in contact with one end of the front bearing box 10, and the fitting means 18 is connected to the side of the front bracket 1.
A predetermined gap G is secured between one side of the bearing box 10 and the bearing 8 is clamped by the cooperative action of the inner end of the bearing box 10 and the clamping part 18c of the fitting means 18.
２２は嵌合手段１８内周に嵌着されるオイルシ
ールで、このオイルシール２２は、回転子軸７の
外周との間でエンジン側からの潤滑油を発電機側
に漏れるのを防止している。 Reference numeral 22 denotes an oil seal fitted to the inner periphery of the fitting means 18, and this oil seal 22 prevents lubricating oil from the engine side from leaking to the generator side between it and the outer periphery of the rotor shaft 7. There is.
しかして、上記構成よりなる発電機をエンジン
ケース１９側に取付ける場合には、取付けに際し
てエンジンケース１９側に嵌合手段１８のフラン
ジ部１８ａを嵌合案内し、且つフロントブラケツ
ト１に設けた発電機取付用のボルト穴１ａにボル
ト（図示せず）を挿通し、このボルトをエンジン
ケース１９側に締着させて、発電機の取付けが行
なわれる。また、回転子軸７のフロントブラケツ
ト１側端部には、回転子軸７及び回転子１２を回
転させるための駆動部（図示せず）が嵌着されて
おり、この駆動部を潤滑するためにエンジン側か
ら潤滑油が適宜供給されている。 Therefore, when the generator having the above configuration is installed on the engine case 19 side, the flange portion 18a of the fitting means 18 is fitted and guided on the engine case 19 side during installation, and the generator provided on the front bracket 1 is connected to the engine case 19 side. The generator is installed by inserting a bolt (not shown) into the mounting bolt hole 1a and tightening the bolt to the engine case 19 side. Further, a drive section (not shown) for rotating the rotor shaft 7 and the rotor 12 is fitted into the end of the rotor shaft 7 on the front bracket 1 side, and a drive section (not shown) for rotating the rotor shaft 7 and the rotor 12 is fitted to the end of the rotor shaft 7 on the front bracket 1 side. lubricating oil is appropriately supplied from the engine side.
このように構成された発電機の構造において、
回転子１２の回転によりフアン１３，１３′が回
転すると、フロント側フアン１３の回転により、
外部冷却風がフロントブラケツト１の側面と嵌合
手段１８との間の間隙Ｇからフロントブラケツト
１の側面に設けた複数個の冷却風吸気窓１４を経
由して、発電機内部に導入され、この冷却風が励
磁コイル１２ｃ、発電コイル３等のフロント側を
冷却しつつフロントブラケツト１の外周に設けた
排気窓１６を通して放射状に排出される。また、
吸気窓１４より吸入される冷却風の一部は励磁コ
イル１２ｃを冷却しつつリヤ側に至る。一方、リ
ヤ側フアン１３′の回転により、リヤブラケツト
２側に設けた吸気窓１５を通して外部冷却風が吸
入され、この冷却風がホルダ５、電圧調整器６、
励磁コイル１２ｃ及び発電コイル３のリヤ側を冷
却しつつ排気窓１７から排気される。以上のよう
に、本実施例によれば、発電機の内部にリヤ側か
ら冷却風を導入することは勿論、フロントブラケ
ツト１の側面と嵌合手段１８との間に間隙Ｇを設
け、しかも、フロントブラケツト１側面に複数の
吸気窓を設けることにより、外部冷却風をフロン
ト及びリヤ双方の吸気窓１４，１５から効率よく
充分に吸入して、励磁コイル１２ｃ、発電コイル
３等の熱源を充分に冷却することができ、発電機
の出力を大幅に増大させると共に、同時に絶縁物
の寿命を延長させることができる。特に本実施例
では、発電機１をエンジンケース１９側に嵌合さ
せる方式のものにおいても、フロントブラケツト
１の側面に吸気窓１４に配設して、発電機の冷却
効率を従来に較べて大幅の向上させる利点を有す
る。 In the structure of the generator configured in this way,
When the fans 13 and 13' rotate due to the rotation of the rotor 12, the rotation of the front side fan 13 causes
External cooling air is introduced into the generator from the gap G between the side surface of the front bracket 1 and the fitting means 18 via a plurality of cooling air intake windows 14 provided on the side surface of the front bracket 1. The cooling air is radially discharged through the exhaust window 16 provided on the outer periphery of the front bracket 1 while cooling the front side of the excitation coil 12c, the power generation coil 3, etc. Also,
A portion of the cooling air taken in through the intake window 14 reaches the rear side while cooling the excitation coil 12c. On the other hand, as the rear fan 13' rotates, external cooling air is sucked in through the intake window 15 provided on the rear bracket 2 side, and this cooling air is delivered to the holder 5, voltage regulator 6,
The excitation coil 12c and the rear side of the generator coil 3 are cooled while being exhausted from the exhaust window 17. As described above, according to the present embodiment, cooling air is not only introduced into the generator from the rear side, but also a gap G is provided between the side surface of the front bracket 1 and the fitting means 18. By providing a plurality of intake windows on the side of the front bracket 1, external cooling air is efficiently and sufficiently taken in from both the front and rear intake windows 14 and 15, and the heat sources of the excitation coil 12c, power generation coil 3, etc. can be cooled, significantly increasing the output of the generator and at the same time extending the life of the insulation. In particular, in this embodiment, even in the case where the generator 1 is fitted into the engine case 19 side, the intake window 14 is provided on the side of the front bracket 1, and the cooling efficiency of the generator is greatly improved compared to the conventional one. It has the advantage of improving.
また、フロントブラケツト１は、予め嵌合手段
１８と別個に成形されるため、フロントブラケツ
ト１の形状が単純な形状となり、フロントブラケ
ツトの金型の構造が簡単になり、その結果、ダイ
カスト作業が簡単で、しかも鋳ばり、鋳巣の発生
を有効に防止することから、車両用発電機の生産
を向上させ、しかも、エンジンケース側とは、オ
イルシール２２及びＯリング２０等を介して結合
することから、気密性にも優れている。 Furthermore, since the front bracket 1 is molded separately from the fitting means 18 in advance, the shape of the front bracket 1 is simple, the structure of the front bracket mold is simple, and as a result, the die-casting work is easy. In addition, since the generation of flash and blowholes is effectively prevented, production of vehicle generators is improved, and furthermore, it can be connected to the engine case side via an oil seal 22, an O-ring 20, etc. Therefore, it has excellent airtightness.
以上のように本発明によれば、エンジンケース
側に嵌合取付けされる方式の車両用発電機におい
ても、フロントブラケツト側面に冷却風吸気窓を
確保でき、簡潔な構造を呈しつつ発電機の冷却効
果を向上させると共に、フロントブラケツト等の
成形加工を容易にして生産性を向上させることが
できる。
As described above, according to the present invention, even in a vehicle generator that is fitted and attached to the engine case side, a cooling air intake window can be secured on the side of the front bracket, and the generator can be cooled while exhibiting a simple structure. In addition to improving the effect, it is possible to facilitate the molding process of the front bracket and the like, thereby improving productivity.
第１図は本発明の一実施例を示す縦断面図、第
２図は上記実施例に用いるフロントブラケツトと
発電機取付用嵌合手段との結合状態を示す縦断面
図である。
１…フロントブラケツト、２…リヤブラケツ
ト、７…回転子軸、８…フロント側軸受、１０…
軸受箱、１２…回転子、１３，１３′…冷却用フ
アン、１４…フロント側吸気窓、１６…フロント
側排気窓、１８…嵌合手段、１８ａ…フランジ
部、１８ｂ…挿通孔、１８ｃ…挾持部、１９…エ
ンジンケース、２１…固着部材（ねじ）、Ｇ…間
隙。
FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view showing a state in which a front bracket and a generator mounting fitting means used in the above-mentioned embodiment are connected. 1...Front bracket, 2...Rear bracket, 7...Rotor shaft, 8...Front side bearing, 10...
Bearing box, 12... Rotor, 13, 13'... Cooling fan, 14... Front side intake window, 16... Front side exhaust window, 18... Fitting means, 18a... Flange portion, 18b... Insertion hole, 18c... Clamping Part, 19...Engine case, 21...Fixing member (screw), G...Gap.
Claims (1)
冷却用のフアンを配設してなる内扇形の発電機
で、この発電機のフロントブラケツトの側面に嵌
合手段を設け、該嵌合手段をエンジンケース側に
嵌合させて発電機の取付けを行なう方式の車両用
発電機において、前記フロントブラケツトと前記
嵌合手段とは、別個に成形された成形体よりな
り、且つ前記嵌合手段は、前記エンジンケースの
一部に嵌合するフランジ部と、前記発電機の回転
子軸を前記エンジンケース側に導く挿通孔と、前
記フロントブラケツトの軸受箱に嵌合して前記回
転子軸のフロント軸受の一側を挾持する挾持部と
を有する環状体で構成され、この嵌合手段を前記
フロントブラケツトの側面に固着部材を介して取
付けると共に、前記フロントブラケツトの側面と
前記嵌合手段との間には所定の間隙を確保し、一
方、前記フロントブラケツトの側面には、前記間
隙を通して外部空気を吸入する冷却風吸気窓を配
設してなることを特徴とする車両用発電機。1 An internal fan-shaped generator with cooling fans arranged on both sides of a rotor built into the main body of the generator, with a fitting means provided on the side of the front bracket of the generator, and the fitting In a vehicle generator in which the generator is attached by fitting means into the engine case side, the front bracket and the fitting means are made of separately molded bodies, and the fitting means includes a flange portion that fits into a part of the engine case, an insertion hole that guides the rotor shaft of the generator to the engine case side, and a flange portion that fits into the bearing box of the front bracket and that connects the rotor shaft to the front bracket. It is composed of an annular body having a clamping part that clamps one side of the front bearing, and the fitting means is attached to the side surface of the front bracket via a fixing member, and the fitting means is attached to the side surface of the front bracket and the fitting means. A generator for a vehicle, characterized in that a predetermined gap is secured between the front brackets, and a cooling air intake window for sucking outside air through the gap is provided on a side surface of the front bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16119487A JPS648840A (en) | 1987-06-30 | 1987-06-30 | Automotive generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16119487A JPS648840A (en) | 1987-06-30 | 1987-06-30 | Automotive generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648840A JPS648840A (en) | 1989-01-12 |
| JPH0546183B2 true JPH0546183B2 (en) | 1993-07-13 |
Family
ID=15730372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16119487A Granted JPS648840A (en) | 1987-06-30 | 1987-06-30 | Automotive generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010246191A (en) * | 2009-04-01 | 2010-10-28 | Toshiba Corp | Oil leakage preventing structure for rotating electrical machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020018064A (en) * | 2018-07-24 | 2020-01-30 | 株式会社小松製作所 | Motor |
-
1987
- 1987-06-30 JP JP16119487A patent/JPS648840A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010246191A (en) * | 2009-04-01 | 2010-10-28 | Toshiba Corp | Oil leakage preventing structure for rotating electrical machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS648840A (en) | 1989-01-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |