JPH0326263U

JPH0326263U -

Info

Publication number: JPH0326263U
Application number: JP8480789U
Authority: JP
Priority date: 1989-07-19
Filing date: 1989-07-19
Publication date: 1991-03-18

Description

[Brief explanation of the drawing]

第１図および第２図はこの考案の一実施例によ
る車両用充電発電機のフロント側フアンとリア側
フアンの正面図、第３図は従来の車両用充電発電
機の断面図、第４図および第５図は第３図の充電
発電機のフロント側フアンとリア側フアンの正面
図、第６図は回転軸回転数と音圧レベルの関係を
示す特性図である。１……第１のブラケツト、１ａ……吸気孔、１
ｂ……排気孔、２……第２のブラケツト、２ａ…
…吸気孔、２ｂ……排気孔、３……固定子、４，
５……ベアリング、６……回転軸、７，８……磁
極鉄心、１２……回転子、３０……フロント側フ
アン、３０ａ〜３０ｌ……フアンブレード、４０
……リア側フアン、４０ａ〜４０ｌ……フアンブ
レード。なお、図中同一符号は同一又は相当部分
を示す。 1 and 2 are front views of a front fan and a rear fan of a vehicle charging generator according to an embodiment of this invention, FIG. 3 is a sectional view of a conventional vehicle charging generator, and FIG. 4 5 is a front view of the front side fan and rear side fan of the charging generator of FIG. 3, and FIG. 6 is a characteristic diagram showing the relationship between the rotating shaft rotation speed and the sound pressure level. 1...First bracket, 1a...Intake hole, 1
b...Exhaust hole, 2...Second bracket, 2a...
...Intake hole, 2b...Exhaust hole, 3...Stator, 4,
5...Bearing, 6...Rotating shaft, 7, 8...Magnetic pole iron core, 12...Rotor, 30...Front side fan, 30a-30l...Fan blade, 40
...Rear fan, 40a-40l...Fan blade. Note that the same reference numerals in the figures indicate the same or equivalent parts.

補正平２．７．７実用新案登録請求の範囲を次のように補正する
。Amendment 2.7.7 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】吸気孔と排気孔をそれぞれ有する１対のブラケ
ツトで固定子を挟持し、上記１対のブラケツトに
取付けたベアリングを介して支承した回転軸に磁
極鉄心とその軸方向両端面にフアンを有する回転
子を備えた車両用充電発電機において、上記フア
ンのフアンブレード外周点と上記回転子中心点と
を結んだ直線とフアンブレードとのなす角度が全
てのフアンブレードにおいて２５度以上４５度以
下とし、かつ上記フアンブレードのうち少なくと
も一つは他のフアンブレードと上記角度が異なる
フアンブレードを有することを特徴とする車両用
充電発電機。[Scope of Claim for Utility Model Registration] A stator is sandwiched between a pair of brackets each having an intake hole and an exhaust hole, and a magnetic pole core and its axial direction are mounted on a rotating shaft supported via bearings attached to the pair of brackets. In a vehicle charging generator equipped with a rotor having fans on both end faces, the angle between the fan blade and a straight line connecting the fan blade outer peripheral point of the fan and the rotor center point is 25 for all fan blades. 45 degrees or less, and at least one of the fan blades has a fan blade whose angle is different from the other fan blades.

Claims

[Scope of utility model registration request]

A rotor in which a stator is held between a pair of brackets each having an intake hole and an exhaust hole, and a rotating shaft supported through bearings attached to the pair of brackets has a magnetic pole iron core and fans on both axial end faces of the rotating shaft. In the vehicle charging generator equipped with the above, all angles formed by the fan blade and a straight line connecting the fan blade outer peripheral point of the fan and the rotor center point are 25 degrees or more and 45 degrees or less at the fan blade, and the above-mentioned A charging generator for a vehicle, wherein at least one of the fan blades has a fan blade having a different angle from that of the other fan blades.