JPS60122297A - Electric blower - Google Patents
Electric blowerInfo
- Publication number
- JPS60122297A JPS60122297A JP23011583A JP23011583A JPS60122297A JP S60122297 A JPS60122297 A JP S60122297A JP 23011583 A JP23011583 A JP 23011583A JP 23011583 A JP23011583 A JP 23011583A JP S60122297 A JPS60122297 A JP S60122297A
- Authority
- JP
- Japan
- Prior art keywords
- air
- axial
- vane wheel
- impeller
- casing
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は真空掃除機などに使用する電動送風機に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric blower used in a vacuum cleaner or the like.
従来例の構成とその問題点
真空掃除機に使用する電動送風機として、従来より高速
回転整流子モータに遠心形の羽根車を直結したものが用
いられている。この整流子モータを用いることにより、
誘導モータに比べてモータの小型・高速化が可能となっ
ている。しかし最近では電動送風機のより一層の小型化
のために遠心羽根車およびその関連構成を改良し、高速
で遠心羽根車を回転させる電動送風機が開発されつつあ
る。公知ではないが、その構成を第１図をもとに説明す
る。Conventional Structure and Problems Conventionally, electric blowers used in vacuum cleaners include those in which a centrifugal impeller is directly connected to a high-speed rotating commutator motor. By using this commutator motor,
Compared to induction motors, motors can be made smaller and faster. However, recently, in order to further reduce the size of electric blowers, the centrifugal impeller and its related components have been improved, and electric blowers that rotate the centrifugal impeller at high speed are being developed. Although it is not publicly known, its structure will be explained based on FIG.
図において、１はケーシングで、その中央部に吸気口２
が設けてあシ、まだこの吸気口２と反対側はモータフレ
ーム３に空気漏れが無いように取付けられている。４は
ほぼ円錐状のロータ４ａとこれに一体に設けた多数のブ
レード４ｂとを有する遠心形の羽根車で、ケーシング１
により覆われており、遠心羽根車４の吸気部４Ｃが吸気
１」２に対向している。更に吸気口２には、軸流羽根車
７を遠心羽根車４と同軸に固定している。６はこの遠心
羽根車４で発生した動圧を静圧に変換するだめのボリュ
ート部６ａと、このボリュート部５ａを形成するブレー
ドと、遠心羽根車４からの吐出気流をモータ内部へ導く
排気通路５ｂとを一体的に形成したエアガイドである。In the figure, 1 is the casing, and the air intake port 2 is in the center of the casing.
However, the side opposite to the intake port 2 is attached to the motor frame 3 so that there is no air leakage. 4 is a centrifugal impeller having a substantially conical rotor 4a and a number of blades 4b integrally provided with the rotor 4a;
The air intake section 4C of the centrifugal impeller 4 faces the air intake 1''2. Furthermore, an axial flow impeller 7 is fixed coaxially with the centrifugal impeller 4 at the intake port 2. Reference numeral 6 denotes a volute part 6a that converts the dynamic pressure generated by the centrifugal impeller 4 into static pressure, a blade forming the volute part 5a, and an exhaust passage that guides the discharge airflow from the centrifugal impeller 4 into the inside of the motor. 5b is integrally formed with the air guide.
６は遠心羽根車４を駆動するモータで、モータ軸６ａに
遠心羽根車４のボス部４ｄおよび軸流羽根車７を取付け
ている。遠心羽根車４のブレード４ｂはモータ軸６ａに
平行に配列され、ボス部４ｄとの間に間隔ａを設けて吸
気量を増大させている。6 is a motor that drives the centrifugal impeller 4, and the boss portion 4d of the centrifugal impeller 4 and the axial impeller 7 are attached to the motor shaft 6a. The blades 4b of the centrifugal impeller 4 are arranged parallel to the motor shaft 6a, and a distance a is provided between the blades 4b and the boss portion 4d to increase the amount of intake air.
上記構成において、モータ６により遠心羽根車４を高速
回転させると、空気はケーシング１の吸気口２から軸流
羽根車７を通過して吸い込まれ、遠心羽根車４の内部、
エアガイド６、モータ６の内部を通って外部へ排出され
る。この構成においては遠心羽根車４およびエアガイド
６の構成により、従来から知られている電動送風機に比
し小型化できるものである。In the above configuration, when the centrifugal impeller 4 is rotated at high speed by the motor 6, air is sucked in from the intake port 2 of the casing 1 through the axial flow impeller 7, and the inside of the centrifugal impeller 4,
The air passes through the air guide 6 and the inside of the motor 6 and is discharged to the outside. In this configuration, due to the configuration of the centrifugal impeller 4 and the air guide 6, the size can be reduced compared to conventionally known electric blowers.
しかしながら、この電動送風機において、送風効率を向
上させ得る改良は主に、遠心羽根車４や軸流羽根車７や
、エアガイド６の形状について行われており、送風機の
吸入口２の周辺については特に工夫がなされてないとい
うのが現状であった。However, in this electric blower, improvements that can improve the blowing efficiency have mainly been made to the shapes of the centrifugal impeller 4, axial impeller 7, and air guide 6, and the areas around the air intake port 2 of the blower have been improved. The current situation is that no particular efforts have been made.
発明の目的
本発明は上記電動送風機において、十分に改良されてい
なかった吸気口周辺の空気の流れを効率よく流入するよ
うにした電動送風機を提供しようとするものである。OBJECTS OF THE INVENTION The present invention aims to provide an electric blower that efficiently allows air to flow around the air intake port, which has not been sufficiently improved.
発明の構成
本発明は、遠心羽根車と軸流羽根車を同軸に取り伺け、
遠心羽根車の周囲にはエアガイドを配し、これらを囲む
ようにケーシングを設け、更に上記軸流羽根車を囲むよ
うにケーシングの吸気口に格子状の空気案内部材を配置
した構成になっている。Structure of the Invention The present invention provides a method for coaxially disposing a centrifugal impeller and an axial impeller.
An air guide is arranged around the centrifugal impeller, a casing is provided to surround these, and a lattice-shaped air guide member is further arranged at the intake port of the casing to surround the axial impeller. There is.
実施例の説明
第２図、第３図に本発明の一実施例を示す。第１図の電
動送風機と同一部分は同一符号を付して説明を省略し、
異なる点についてのみ説明すると、吸気口２には軸流羽
根車７の外周を囲むようにリング状で格子状の空気案内
部材８を設けている。DESCRIPTION OF EMBODIMENTS FIGS. 2 and 3 show an embodiment of the present invention. The same parts as the electric blower in Fig. 1 are given the same symbols and the explanation is omitted.
To explain only the different points, the air intake port 2 is provided with a ring-shaped and lattice-shaped air guide member 8 so as to surround the outer periphery of the axial flow impeller 7.
この部材８は空気に予旋回を付与する複数のｍＩ止案内
翼９を有した構成になっている。This member 8 has a plurality of mI stop guide vanes 9 that give pre-swirling to the air.
上記構成において、動作を説明する。モータ６の回転に
より空気は吸気口２から吸い込まれるのであるが、遠心
羽根車４と軸流羽根車７の組合せでは、軸流羽根車７が
直接大気中の静止空気を吸込むため、送風効率が十分に
大きいといえないが、空気案内部材８を付けることによ
シ、静止空気は横方向から案内翼９を通過する時回転方
向への予旋回が与えられ、その結果、スムーズに軸流羽
根車γ内に導くことができ、遠心羽根車４．軸流羽根車
７だけで成り立っている電動送風機に比べ、送風効率が
大＋１］に向上するという効果が得られる。In the above configuration, the operation will be explained. Air is sucked in from the intake port 2 by the rotation of the motor 6, but in the combination of the centrifugal impeller 4 and the axial impeller 7, the axial impeller 7 directly sucks still air from the atmosphere, so the blowing efficiency is low. Although it cannot be said to be large enough, by attaching the air guide member 8, static air is given a pre-swirl in the rotational direction when passing through the guide vane 9 from the lateral direction, and as a result, the axial flow vane smoothly moves. The centrifugal impeller 4. Compared to an electric blower made up of only the axial flow impeller 7, the effect of improving the air blowing efficiency by a large amount by +1 can be obtained.
発明の効果
上記実砲例からあきらかなように本発明の電動送風機は
、ケーシングの吸気１」に軸流羽根車の外周を囲むよう
に、格子状の空気案内部材を設けたことにより、吸気に
１において軸流羽根車内にスムーズに気流を導くため、
全体として送風効率の高い′「し動送風機がイＺＪられ
るものである。Effects of the Invention As is clear from the above-mentioned actual gun example, the electric blower of the present invention has a lattice-shaped air guide member provided in the intake air 1 of the casing so as to surround the outer periphery of the axial flow impeller. In order to smoothly guide airflow into the axial flow impeller in 1.
This is a rotary blower with high overall air blowing efficiency.
第１図は本発明を説明するための電動送風機の一部欠截
側面図、第２図は本発明の一実施例を示す電動送風機の
一部欠截側面図、第３図は空気案内部材の斜視図である
。
６ａ・・・・・・モータ軸、６・・・・・・エアガイド
、４・・・・・・遠心羽根車、１・・・・・・ケーシン
グ、７・・・・・・軸流羽根車、８・・・・・・空気案
内部材。
代理人の氏名 弁理士 中 尾 敏 男 はが１名第１
図
第２図
第３□□□Fig. 1 is a partially cutaway side view of an electric blower for explaining the present invention, Fig. 2 is a partially cutaway side view of an electric blower showing an embodiment of the present invention, and Fig. 3 is an air guide member. FIG. 6a... Motor shaft, 6... Air guide, 4... Centrifugal impeller, 1... Casing, 7... Axial flow impeller. Car, 8...Air guide member. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2 Figure 3 □□□
Claims (1)
の周囲にはエアガイドを配し、これらを覆うようにケー
シングを設け、前記遠心羽根車の吸込部には軸流羽根車
を遠心羽根車と同軸に固定し、更にその軸流羽根車を囲
むようにケーシングの吸気１］に格子状の空気案内部材
を設けた電動送風機。 （２）ケーシングの吸気口に設けた空気案内部材は、空
気に予旋回を＋Ｊ与する静止案内翼を設けた特許請求の
範囲第１項記載の電動送風機。[Claims] (1) A centrifugal impeller is attached to the motor shaft, an air guide is arranged around the centrifugal impeller, a casing is provided to cover these, and the suction part of the centrifugal impeller is provided with a shaft. An electric blower in which a flow impeller is fixed coaxially with a centrifugal impeller, and a lattice-shaped air guide member is provided at the intake 1 of the casing to surround the axial impeller. (2) Installed at the intake port of the casing. 2. The electric blower according to claim 1, wherein the air guide member is provided with stationary guide vanes that give pre-swirl +J to the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23011583A JPS60122297A (en) | 1983-12-06 | 1983-12-06 | Electric blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23011583A JPS60122297A (en) | 1983-12-06 | 1983-12-06 | Electric blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60122297A true JPS60122297A (en) | 1985-06-29 |
Family
ID=16902801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23011583A Pending JPS60122297A (en) | 1983-12-06 | 1983-12-06 | Electric blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60122297A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03141897A (en) * | 1989-10-26 | 1991-06-17 | Matsushita Electric Ind Co Ltd | Electric air blower |
| CN104929974A (en) * | 2015-07-20 | 2015-09-23 | 张家港市金港镇金穗五金机械厂 | Perfusion type fan blade |
| CN104929976A (en) * | 2015-07-20 | 2015-09-23 | 张家港市金港镇金穗五金机械厂 | Perfusion type centrifugal fan |
-
1983
- 1983-12-06 JP JP23011583A patent/JPS60122297A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03141897A (en) * | 1989-10-26 | 1991-06-17 | Matsushita Electric Ind Co Ltd | Electric air blower |
| CN104929974A (en) * | 2015-07-20 | 2015-09-23 | 张家港市金港镇金穗五金机械厂 | Perfusion type fan blade |
| CN104929976A (en) * | 2015-07-20 | 2015-09-23 | 张家港市金港镇金穗五金机械厂 | Perfusion type centrifugal fan |
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