JPS62140867U - - Google Patents
Info
- Publication number
- JPS62140867U JPS62140867U JP2780286U JP2780286U JPS62140867U JP S62140867 U JPS62140867 U JP S62140867U JP 2780286 U JP2780286 U JP 2780286U JP 2780286 U JP2780286 U JP 2780286U JP S62140867 U JPS62140867 U JP S62140867U
- Authority
- JP
- Japan
- Prior art keywords
- holes
- ventilation
- rotating body
- large number
- circumferential direction
- 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
- 238000009423 ventilation Methods 0.000 claims 5
- 238000007664 blowing Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す半部断面図、
第２図Ａは同実施例で用いる回転体とカバーとを
示す断面図、第２図ＢないしＤはそれぞれ同図Ａ
のＺｂ方向矢視図、Ｚｃ方向矢視図及びＺｄ方向
矢視図、第３図は回転体に設ける送風窓及び送風
羽の形状の一例を示す斜視図、第４図は実験で用
いた回転体及びカバーの各部の寸法を示す要部断
面図、第５図は実験結果を示す線図、第６図Ａな
いしＣはそれぞれ本考案で用いるカバーに設ける
排風孔群の異なる構成例を示す説明図である。
１……回転体、２……永久磁石、３……回転子
、４……回転軸、７……カバー、２０Ａ〜２０Ｃ
……排風孔群、２０ａ，２０ｂ……排風孔。
FIG. 1 is a half sectional view showing an embodiment of the present invention;
FIG. 2A is a cross-sectional view showing the rotating body and cover used in the same embodiment, and FIGS. 2B to D are the same FIG.
3 is a perspective view showing an example of the shape of the blow window and blower blades provided in the rotating body, and FIG. 4 is the rotation used in the experiment. 5 is a diagram showing the experimental results, and FIGS. 6 A to C each show different configuration examples of the exhaust hole group provided in the cover used in the present invention. It is an explanatory diagram. 1...Rotating body, 2...Permanent magnet, 3...Rotor, 4...Rotating shaft, 7...Cover, 20A to 20C
...Exhaust hole group, 20a, 20b...Exhaust hole.
Claims (1)
に並ぶ多数の送風羽と送風窓とが設けられたカツ
プ状の回転体の内周に磁極部を構成した回転子と
、前記回転子の内側に配置された固定子と、前記
回転体の外周を間隙を介して取囲む円筒状を有す
るカバーとを備え、前記カバーの円筒部には周方
向に並ぶ排風孔が多数設けられ、前記多数の排風
孔は複数の排風孔群に分けられて該複数の排風孔
群が周方向に間隔を開けて配置されている回転電
機において、 前記各排風孔群を構成する排風孔の内、両端部
に位置する２つの排風孔を除いた他の排風孔は前
記回転体の軸線方向に長い長孔からなり、両端に
位置する排風孔はそれぞれの軸線方向長さが同じ
排風孔群の他の排風孔かり短く設定されているこ
とを特徴とする低騒音形回転電機。[Scope of Claim for Utility Model Registration] A magnetic pole portion is formed on the inner periphery of a cup-shaped rotating body in which a predetermined portion of the peripheral wall is cut inward and provided with a large number of blowing blades and blowing windows arranged in the circumferential direction. The cover includes a rotor, a stator disposed inside the rotor, and a cylindrical cover that surrounds the outer periphery of the rotating body with a gap, and the cylindrical portion of the cover has exhaust holes arranged in a circumferential direction. In a rotating electrical machine provided with a large number of air holes, the large number of air exhaust holes are divided into a plurality of air exhaust hole groups, and the plurality of air exhaust hole groups are arranged at intervals in the circumferential direction, Among the ventilation holes constituting the ventilation hole group, the other ventilation holes except for the two ventilation holes located at both ends are long holes that are long in the axial direction of the rotating body, and the ventilation holes located at both ends are elongated holes. A low-noise rotating electric machine characterized in that each hole has a shorter length in the axial direction than other exhaust holes in the same exhaust hole group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2780286U JPH0242064Y2 (en) | 1986-02-27 | 1986-02-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2780286U JPH0242064Y2 (en) | 1986-02-27 | 1986-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62140867U true JPS62140867U (en) | 1987-09-05 |
| JPH0242064Y2 JPH0242064Y2 (en) | 1990-11-08 |
Family
ID=30830172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2780286U Expired JPH0242064Y2 (en) | 1986-02-27 | 1986-02-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0242064Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014124087A (en) * | 2012-12-21 | 2014-07-03 | Dr Ing Hcf Porsche Ag | Electric machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06227037A (en) * | 1993-01-29 | 1994-08-16 | Ricoh Co Ltd | Image forming device |
-
1986
- 1986-02-27 JP JP2780286U patent/JPH0242064Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014124087A (en) * | 2012-12-21 | 2014-07-03 | Dr Ing Hcf Porsche Ag | Electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0242064Y2 (en) | 1990-11-08 |
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