JPS6323533Y2 - - Google Patents
Info
- Publication number
- JPS6323533Y2 JPS6323533Y2 JP6650682U JP6650682U JPS6323533Y2 JP S6323533 Y2 JPS6323533 Y2 JP S6323533Y2 JP 6650682 U JP6650682 U JP 6650682U JP 6650682 U JP6650682 U JP 6650682U JP S6323533 Y2 JPS6323533 Y2 JP S6323533Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- cooling fan
- engine
- hole
- magnet
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 40
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Description
【考案の詳細な説明】
本考案は強制空冷エンジンの冷却フアンに関す
る。[Detailed Description of the Invention] The present invention relates to a cooling fan for a forced air cooling engine.
小型の自動二輪車に搭載されている強制空冷エ
ンジンの冷却手段としては一般に第１図に示すよ
うにエンジン１のクランク軸２に固着された交流
発電機（以下単に発電機という）３のロータ４の
側面に固設した冷却フアン１２により冷却するよ
うになつている。ロータ４は軸穴４ａに嵌合さ
れ、リベツト５により側面４ｂに固着された軸受
６を介してクランク軸２にナツト７により締付固
定され、内部には樹脂部材で環状に形成されたモ
ールド部材８及びこのモールド部材８の周部に所
定間隔で穿設された穴８ａ内に嵌挿されたマグネ
ツト９が嵌装され、これらのモールド部材８及び
各マグネツト９は当該各マグネツト９に配設され
たボールピース１０を介してネジ１１によりロー
タ４の内周面に締付固定されており、ロータ４の
側面４ｂには樹脂部材で一体に形成された冷却フ
アン１２がネジ１３により締付固定されている。 As shown in FIG. 1, the cooling means for a forced air-cooled engine installed in a small motorcycle generally includes a rotor 4 of an alternating current generator (hereinafter simply referred to as a generator) 3 fixed to a crankshaft 2 of an engine 1. It is designed to be cooled by a cooling fan 12 fixed to the side. The rotor 4 is fitted into the shaft hole 4a, and is tightened and fixed to the crankshaft 2 with a nut 7 via a bearing 6 fixed to the side surface 4b with a rivet 5, and inside is a molded member formed in an annular shape with a resin member. 8 and magnets 9 fitted into holes 8a bored at predetermined intervals around the circumference of the molded member 8, and these molded members 8 and each magnet 9 are arranged in each magnet 9. A cooling fan 12 integrally formed of a resin member is tightened and fixed to the inner circumferential surface of the rotor 4 with screws 11 via a ball piece 10, and a cooling fan 12 integrally formed with a resin member is tightened and fixed to the side surface 4b of the rotor 4 with screws 11. ing.
エンジン１のクランク軸２と共にロータ４及び
冷却フアン１２が回転すると、エンジン１に装着
されたフアンカバー１４のダクト１４ａから外気
が吸込まれ当該カバー１４内を矢印のように流れ
てエンジン１の冷却フイン１ａに導かれ、当該エ
ンジン１が冷却される。 When the rotor 4 and cooling fan 12 rotate together with the crankshaft 2 of the engine 1, outside air is sucked in from the duct 14a of the fan cover 14 attached to the engine 1, flows inside the cover 14 as shown by the arrow, and flows through the cooling fin of the engine 1. 1a, and the engine 1 is cooled.
しかしながら、上記構成の冷却フアンにおいて
はロータ４と冷却フアン１２とを各別に形成し、
ロータ４の側面４ｂに冷却フアン１２をネジ１３
で締付固定するようにしているために部品点数が
増大し、且つ組付に手間が掛ると共に、冷却フア
ン自体が重くなりエンジン出力の損失が大きくな
る等の不具合いがある。 However, in the cooling fan configured as described above, the rotor 4 and the cooling fan 12 are formed separately,
Attach the cooling fan 12 to the side surface 4b of the rotor 4 using screws 13.
Since the cooling fan is tightened and fixed, the number of parts increases, it takes time and effort to assemble, and there are problems such as the cooling fan itself becomes heavy and the loss of engine output becomes large.
本考案は上述の点に鑑みてなされたもので、ロ
ータ内にマグネツトを係止固定するモールド部材
と冷却フアンとを一体に形成し部品点数の低減及
び組付性の向上を図ることを目的とする。この目
的を達成するために本考案においては、エンジン
により駆動される発電機のロータ内に樹脂製のモ
ールド部材を介してマグネツトを嵌装固定すると
共に、ロータの側面に冷却フアンを設け当該ロー
タの回転に伴ない発生される風流により前記エン
ジンを冷却する強制空冷エンジンの冷却フアンに
おいて、前記モールド部材の側部に冷却フアンを
一体に形成すると共に、前記ロータの側面に前記
冷却フアンと対応する穴を穿設し、当該穴を介し
て前記冷却フアンを前記ロータの側面に突出させ
るようにした強制空冷エンジンの冷却フアンを提
供するものである。 The present invention was developed in view of the above points, and its purpose is to reduce the number of parts and improve ease of assembly by integrally forming a cooling fan and a molded member that locks and secures a magnet in the rotor. do. In order to achieve this objective, in the present invention, a magnet is fitted and fixed in the rotor of a generator driven by an engine through a resin molded member, and a cooling fan is provided on the side of the rotor to prevent the rotor from being damaged. In a cooling fan for a forced air-cooled engine that cools the engine by airflow generated as the engine rotates, a cooling fan is integrally formed on a side of the molded member, and a hole corresponding to the cooling fan is formed on a side of the rotor. The present invention provides a cooling fan for a forced air-cooled engine, in which a hole is formed in the rotor, and the cooling fan is made to protrude from a side surface of the rotor through the hole.
以下本考案の一実施例を添附図面に基づいて詳
述する。 An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
第２図においてモールド部材２０は断面形状が
略コ字状をなし、環状の周壁部２０ａには周方向
に所定の間隔でマグネツト嵌挿用の穴２０ｂが所
定数穿設され、側面２０ｃの略中央にはロータ固
定用の軸受６（第３図）の逃げ穴２０ｄが穿設さ
れており、この穴２０ｄと周縁部２０ａとの間に
は放射状に且つ当該側面２０ｃに垂直に複数枚の
冷却フアン２０ｅが突出して形成されている。環
状周壁部２０ａは第３図に示すロータ４′内に嵌
挿し得る大きさに設定されている。かかる形状の
モールド部材２０は合成樹脂部材により一体に形
成されている。 In FIG. 2, the mold member 20 has a substantially U-shaped cross section, and a predetermined number of holes 20b for inserting magnets are bored at predetermined intervals in the circumferential direction in an annular peripheral wall portion 20a, and a substantially U-shaped side surface 20c. An escape hole 20d for the bearing 6 (Fig. 3) for fixing the rotor is bored in the center, and a plurality of cooling holes are provided radially and perpendicularly to the side surface 20c between this hole 20d and the peripheral edge 20a. A fan 20e is formed to protrude. The annular peripheral wall portion 20a is sized to fit into the rotor 4' shown in FIG. 3. The mold member 20 having such a shape is integrally formed of a synthetic resin member.
一方、第３図に示すようにロータ４′の側面
４′ｂにはモールド部材２０の各冷却フアン２０
ｅと対向する位置に当該冷却フアン２０ｅが挿通
する穴４′ｃが穿設されている。 On the other hand, as shown in FIG.
A hole 4'c, through which the cooling fan 20e is inserted, is provided at a position facing the cooling fan 20e.
尚、前述した第１図と同一もしくは相当する構
成については図面中に同一もしくは相当する符号
を付しその説明を省略する。 It should be noted that the same or corresponding configurations as those in FIG. 1 described above are designated by the same or corresponding symbols in the drawings, and the explanation thereof will be omitted.
かかる構成のモールド部材２０を第３図に示す
ようにロータ４′内に嵌挿し、各冷却フアン２０
ｅを当該ロータ４′の対向する各穴４′ｃから外方
に突出させる。次いで、モールド部材２０の周壁
部２０ａの各穴２０ｂ内にマグネツト９を嵌挿
し、各マグネツト９に配設したボールピース１０
と周壁部４′ｄの穴４′ｅ及びマグネツト９の穴９
ａを貫通しボールピース１０に螺合するネジ１１
とによりロータ４′の周壁部４′ｄの内面に各マグ
ネツト９及びモールド部材２０を締付固定する。
このようにしてロータ４′と冷却フアン２０ｅと
を一体的に構成する。このロータ４′を前述と同
様に側面４′ａにリベツト５により固着された軸
受６を介してクランク軸２に固着する。 The molded member 20 having such a structure is inserted into the rotor 4' as shown in FIG.
e is made to protrude outward from each opposing hole 4'c of the rotor 4'. Next, the magnets 9 are fitted into the respective holes 20b of the peripheral wall portion 20a of the mold member 20, and the ball pieces 10 disposed in each magnet 9 are inserted.
and the hole 4'e in the peripheral wall 4'd and the hole 9 in the magnet 9.
a screw 11 that passes through a and screws into the ball piece 10
As a result, each magnet 9 and mold member 20 are tightened and fixed to the inner surface of the peripheral wall portion 4'd of the rotor 4'.
In this way, the rotor 4' and the cooling fan 20e are integrally constructed. This rotor 4' is fixed to the crankshaft 2 via a bearing 6 fixed to the side surface 4'a by a rivet 5 in the same manner as described above.
以上説明したように本考案によれば、エンジン
により駆動されるロータ内に樹脂製のモールド部
材を介してマグネツトを嵌挿固定すると共に、ロ
ータの側面に冷却フアンを設け当該ロータの回転
に伴ない発生される風流により前記エンジンを冷
却する強制空冷エンジンの冷却フアンにおいて、
前記モールド部材の側部に冷却フアンを一体に形
成すると共に、前記ロータの側面に前記冷却フア
ンと対応する穴を穿設し、当該穴を介して前記冷
却フアンを前記ロータの側面に突出させるように
してロータと冷却フアンとを一体的に構成したの
で、部品点数が低減すると共に組付性が向上し、
冷却フアン自体の軽量化及びロータに冷却フアン
挿通用の穴を穿設したことによる当該ロータの軽
量化を図ることができ、エンジン出力の損失を少
くすることができる。 As explained above, according to the present invention, a magnet is inserted and fixed into a rotor driven by an engine through a resin molded member, and a cooling fan is provided on the side of the rotor to cause the rotor to rotate as the rotor rotates. In a cooling fan for a forced air-cooled engine that cools the engine with a generated air flow,
A cooling fan is integrally formed on the side of the molded member, and a hole corresponding to the cooling fan is bored in the side of the rotor, and the cooling fan is made to protrude to the side of the rotor through the hole. Since the rotor and cooling fan are integrally constructed, the number of parts is reduced and ease of assembly is improved.
It is possible to reduce the weight of the cooling fan itself and to reduce the weight of the rotor by providing holes for the insertion of the cooling fan in the rotor, thereby reducing the loss of engine output.
第１図は従来の強制空冷エンジンの冷却フアン
の縦断面図、第２図は本考案に係る強制空冷エン
ジンの冷却フアンに使用するモールド部材の一実
施例を示す一部切欠斜視図、第３図は第２図に示
すモールド部材をロータに嵌装した状態を示す縦
断面図である。
１……エンジン、２……クランク軸、３……発
電機、４′……ロータ、５……軸受、８……マグ
ネツト、９……ボールピース、１１……ネジ、１
３……フアンカバー、２０……モールド部材、２
０ｅ……冷却フアン。
FIG. 1 is a vertical cross-sectional view of a conventional cooling fan for a forced air-cooled engine, FIG. 2 is a partially cutaway perspective view showing an embodiment of a mold member used in the cooling fan for a forced air-cooled engine according to the present invention, and FIG. This figure is a longitudinal cross-sectional view showing a state in which the mold member shown in FIG. 2 is fitted into a rotor. 1... Engine, 2... Crankshaft, 3... Generator, 4'... Rotor, 5... Bearing, 8... Magnet, 9... Ball piece, 11... Screw, 1
3...Fan cover, 20...Mold member, 2
0e...Cooling fan.
Claims (1)
樹脂製のモールド部材を介してマグネツトを嵌装
固定すると共に、ロータの側面に冷却フアンを設
け当該ロータの回転に伴ない発生される風流によ
り前記エンジンを冷却する強制空冷エンジンの冷
却フアンにおいて、前記モールド部材の側部に冷
却フアンを一体に形成すると共に、前記ロータの
側面に前記冷却フアンと対応する穴を穿設し、当
該穴を介して前記冷却フアンを前記ロータの側面
に突出させるようにしたことを特徴とする強制空
冷エンジンの冷却フアン。 A cooling fan for a forced air-cooled engine in which a magnet is fitted and fixed via a resin molded member inside the rotor of a generator driven by an engine, and a cooling fan is provided on the side of the rotor to cool the engine by airflow generated as the rotor rotates, characterized in that the cooling fan is formed integrally with the side of the molded member, a hole corresponding to the cooling fan is drilled in the side of the rotor, and the cooling fan protrudes through the hole onto the side of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6650682U JPS58169113U (en) | 1982-05-07 | 1982-05-07 | Forced air cooling engine cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6650682U JPS58169113U (en) | 1982-05-07 | 1982-05-07 | Forced air cooling engine cooling fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58169113U JPS58169113U (en) | 1983-11-11 |
| JPS6323533Y2 true JPS6323533Y2 (en) | 1988-06-28 |
Family
ID=30076374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6650682U Granted JPS58169113U (en) | 1982-05-07 | 1982-05-07 | Forced air cooling engine cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58169113U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0660574B2 (en) * | 1984-05-11 | 1994-08-10 | ヤマハ発動機株式会社 | Forced air cooling engine cooling fan mounting structure |
-
1982
- 1982-05-07 JP JP6650682U patent/JPS58169113U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58169113U (en) | 1983-11-11 |
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