JPH0613877B2 - Electric blower - Google Patents
Electric blowerInfo
- Publication number
- JPH0613877B2 JPH0613877B2 JP689985A JP689985A JPH0613877B2 JP H0613877 B2 JPH0613877 B2 JP H0613877B2 JP 689985 A JP689985 A JP 689985A JP 689985 A JP689985 A JP 689985A JP H0613877 B2 JPH0613877 B2 JP H0613877B2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- fan
- guide
- electric blower
- air
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は電気掃除機などに使用される電動送風機に関す
るものである。TECHNICAL FIELD The present invention relates to an electric blower used for an electric vacuum cleaner or the like.
従来の技術 従来のこの種の電動送風機は第３〜第４図のような構造
になっており、すなわち、１はファン、２は電動機で、
ネジ３でエアーガイド４に固定されている。エアーガイ
ド４の外周には、ファン１の回転方向に向って開口した
案内壁５が形設され、同案内壁５は、内側壁５ａと天井
壁５ｂとで構成されている。2. Description of the Related Art A conventional electric blower of this type has a structure as shown in FIGS. 3 to 4, that is, 1 is a fan, 2 is an electric motor,
It is fixed to the air guide 4 with screws 3. A guide wall 5 is formed on the outer periphery of the air guide 4 so as to open toward the rotation direction of the fan 1. The guide wall 5 is composed of an inner wall 5a and a ceiling wall 5b.
発明が解決しようとする問題点 上記の構成においてファン１から吐出した空気は図中矢
印のように、案内壁５の開口部よりエアーガイド４の後
方に排出されるわけであるが、内側壁５ａ及び天井壁５
ｂの開口端面に直接空気があたるため、騒音が高く、又
内側壁５ａにより空気は旋回流となる割合が多く、効率
が悪いという欠点を有していた。Problems to be Solved by the Invention In the above structure, the air discharged from the fan 1 is discharged from the opening of the guide wall 5 to the rear of the air guide 4 as indicated by an arrow in the figure. And ceiling wall 5
Since the air directly hits the opening end surface of b, the noise is high, and there is a large proportion of the air that becomes a swirling flow due to the inner wall 5a, which is a disadvantage of poor efficiency.
本発明はこのような従来の欠点を解消したもので、騒音
を低減するとともに、効率を高めた電動送風機を提供す
るものである。The present invention solves the above-mentioned conventional drawbacks, and provides an electric blower that reduces noise and improves efficiency.
問題点を解決するための手段 このような従来の欠点を解消するために本発明は、エア
ーガイドの外周に形設された案内壁の内側壁の一部を切
り欠いたものである。Means for Solving the Problems In order to solve such a conventional drawback, the present invention is one in which a part of an inner wall of a guide wall formed on the outer periphery of an air guide is cut out.
作用 この技術的手段による作用は次のようになる。すなわ
ち、案内壁の内側壁の開口端より一部を切り欠くことに
より、案内壁の開口端面を部分的にずらし、ファンから
吐出した空気の束が同時に開口端面に衝突することをふ
せぐことで騒音低減がはかれる。更に内側壁の影響によ
る旋回流が減少し、ファン効率がアップする。Action The action of this technical means is as follows. That is, by cutting out a part from the opening end of the inner wall of the guide wall, the opening end face of the guide wall is partially displaced, and it is possible to prevent the air bundle discharged from the fan from colliding with the opening end face at the same time. It can be reduced. Further, the swirling flow due to the influence of the inner wall is reduced, and the fan efficiency is improved.
実施例 以下、本発明の一実施例を第１図〜第２図にもとづいて
説明する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
６は電動機で、ビス７によりエアーガイド８を固定して
いる。９は電動機６の軸に固定された遠心形のファンで
ある。Reference numeral 6 is an electric motor, and the air guide 8 is fixed by screws 7. A centrifugal fan 9 is fixed to the shaft of the electric motor 6.
エアーガイド８の外周にはファン９の回転方向に向って
開口した複数個の案内壁１０が形設されている。この案
内壁１０は内側壁１０ａと天井壁１０ｂとで構成されて
いる。そしてこの内側壁１０ａは図のごとく、開口端よ
り切り欠かれている。従って、ファン９より突出した空
気は、案内壁１０の内側壁１０ａの端面と天井壁１０ｂ
の端面に同時に衝突しないため騒音が低減される。又内
側壁１０ａの影響による旋回流が低減されるため、吸込
性能の向上も図れる。A plurality of guide walls 10 are formed on the outer periphery of the air guide 8 and open in the direction of rotation of the fan 9. The guide wall 10 is composed of an inner wall 10a and a ceiling wall 10b. The inner wall 10a is cut out from the opening end as shown in the figure. Therefore, the air projecting from the fan 9 can be removed from the end surface of the inner wall 10a of the guide wall 10 and the ceiling wall 10b.
Since it does not collide with the end faces of the same time, noise is reduced. Further, since the swirling flow due to the influence of the inner wall 10a is reduced, the suction performance can be improved.
発明の効果 上記のように本発明によれば、案内壁の内側壁の一部を
切り欠くという簡単な構成で、騒音の低減及び吸入性能
の効率の向上が図れるなど、多大な効果を発揮するもの
である。EFFECTS OF THE INVENTION As described above, according to the present invention, with a simple structure in which a part of the inner wall of the guide wall is cut out, it is possible to achieve great effects such as reduction of noise and improvement of efficiency of suction performance. It is a thing.
第１図は本発明の一実施例を示す電動送風機のファンを
外した状態での斜視図、第２図は断面図、第３図は従来
の電動送風機の断面図、第４図は斜視図である。 ６……電動機、８……エアーガイド、９……ファン、１
０……案内壁、１０ａ……内側壁、１０ｂ……天井壁。1 is a perspective view of an electric blower showing an embodiment of the present invention with a fan removed, FIG. 2 is a sectional view, FIG. 3 is a sectional view of a conventional electric blower, and FIG. 4 is a perspective view. Is. 6 ... Electric motor, 8 ... Air guide, 9 ... Fan, 1
0 ... Guide wall, 10a ... Inner side wall, 10b ... Ceiling wall.
Claims (1)
ァンから送出された空気をガイドするエアーガイドとを
備え、このエアーガイドのファン外周側、下部には同フ
ァンの回転方向に向かって開口した上部壁を有する複数
個の案内壁を形成すると共に、この案内壁の内側壁を開
口先端より一部切欠いた電動送風機。1. A fan driven by an electric motor, and an air guide for guiding air sent from the fan. The air guide is opened at the outer peripheral side and the lower part of the fan in the direction of rotation of the fan. An electric blower in which a plurality of guide walls having an upper wall are formed, and an inner wall of the guide walls is partially cut away from an opening tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP689985A JPH0613877B2 (en) | 1985-01-18 | 1985-01-18 | Electric blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP689985A JPH0613877B2 (en) | 1985-01-18 | 1985-01-18 | Electric blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61167200A JPS61167200A (en) | 1986-07-28 |
| JPH0613877B2 true JPH0613877B2 (en) | 1994-02-23 |
Family
ID=11651069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP689985A Expired - Lifetime JPH0613877B2 (en) | 1985-01-18 | 1985-01-18 | Electric blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613877B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895001B (en) * | 2017-04-12 | 2018-10-02 | 宁波鲍斯能源装备股份有限公司 | Oil-free scroll vacuum pump |
-
1985
- 1985-01-18 JP JP689985A patent/JPH0613877B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61167200A (en) | 1986-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |