JP2974951B2 - Electric blower - Google Patents
Electric blowerInfo
- Publication number
- JP2974951B2 JP2974951B2 JP28303795A JP28303795A JP2974951B2 JP 2974951 B2 JP2974951 B2 JP 2974951B2 JP 28303795 A JP28303795 A JP 28303795A JP 28303795 A JP28303795 A JP 28303795A JP 2974951 B2 JP2974951 B2 JP 2974951B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- centrifugal impeller
- electric blower
- seal member
- fixed
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、遠心ファンを有す
る電動送風機に係り、特に薄い金属板等からなる遠心羽
根車を有する送風機の性能向上に関する。The present invention relates to an electric blower having a centrifugal fan, and more particularly to improving the performance of a blower having a centrifugal impeller made of a thin metal plate or the like .
【０００２】[0002]
【従来技術】従来、薄い金属板から構成される遠心ファ
ンは、図４に示されるように、回転軸に取り付けられる
軸穴（４ｃ’）を有するプレ−トＡ（４ｃ）、吸入口を
有するプレ−トＢ（４ａ）およびそれらの間に配設固定
される複数のブレ−ド（４ｂ）から構成されていた。各
部品の固定については、ブレ−ド（４ｂ）の端面上に複
数の爪部（４ｂｂ）を設けて、該爪部（４ｂｂ）に対向
するように、プレ−トＡ（４ａ）、Ｂ（４ｃ）に設けら
れた孔部（４ａａ、４ｃｃ）に嵌合し、加締により固定
させる構造になっていた。2. Description of the Related Art Conventionally, as shown in FIG. 4, a centrifugal fan formed of a thin metal plate has a plate A (4c) having a shaft hole (4c ') attached to a rotating shaft, and a suction port. It consisted of a plate B (4a) and a plurality of blades (4b) arranged and fixed between them. For fixing each part, a plurality of claws (4bb) are provided on the end surface of the blade (4b), and the plates A (4a), B (B) are opposed to the claws (4bb). 4c) was fitted into the holes (4aa, 4cc) provided and fixed by caulking.
【０００３】[0003]
【発明が解決しようとする課題】前記従来例において
は、各部品とも薄い金属板をプレス加工により成形され
組み立てるために、寸法精度がばらつきやすく、製作
上、プレ−トＡ、Ｂの内面とブレ−ドの端面の突合せ部
分には０．１ｍｍ程度の隙間が発生する場合もある。こ
こで、図５に示すように遠心羽根車内部の圧力はブレ−
ドのＳ面側では高く、Ｔ面側で低く分布しており、上述
の隙間が発生すると、Ｓ面側からＴ面側へ空気洩れが生
じて遠心羽根車の性能が低下する問題があった。In the prior art, since each part is formed by assembling a thin metal plate by pressing and assembling the parts, the dimensional accuracy is likely to vary, and the inner surfaces of the plates A and B are inconsistent with manufacturing. In some cases, a gap of about 0.1 mm is generated at the abutting portion of the end faces of the gate. Here, as shown in FIG. 5, the pressure inside the centrifugal impeller
The distribution is high on the S surface side and low on the T surface side, and when the above-described gap occurs, there is a problem that air leaks from the S surface side to the T surface side and the performance of the centrifugal impeller decreases. .
【０００４】このような隙間による空気漏れを防止する
ために、羽根車のプレートＡ，Ｂとブレードを塗装する
ことによって隙間を埋めるようにした電動送風機や羽根
車のプレートＡに形成した吸入口をファンケーシングに
取り付けたシール部材に摺接させるようにした電動送風
機が提案されている。しかしながら、これらの電動機送
風機は、塗装膜を形成して隙間を埋めた羽根車をシール
部材に摺接すると摩擦抵抗が増えて性能向上が阻害され
る問題があった。本発明は、上記従来例の問題を解決し
て、確実にプレートＡ、Ｂの内面とブレード端面との間
の隙間の発生を防止すると共にシール部材との摩擦抵抗
の増加を抑制して、電動送風機の性能を向上させること
を目的とする。[0004] Preventing air leakage due to such gaps
Paint the plates A and B of the impeller and the blades
Electric blowers and blades to fill gaps
The suction port formed in the car plate A is connected to the fan casing
Electric blower that slides on the attached seal member
Machine has been proposed. However, these motor transmissions
The blower seals the impeller that has formed a paint film and filled the gap
Sliding contact with members increases frictional resistance and hinders performance improvement.
Problem. The present invention solves the above-mentioned problems of the prior art, reliably prevents the generation of a gap between the inner surfaces of the plates A and B and the blade end surfaces, and reduces the frictional resistance with the seal member.
And an increase in inhibition, and an object thereof to above the performance of the electric blower direction.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明の特徴とするところは、中央に回転軸を取り付
ける軸穴を有するプレ−トＡと、該プレ−トＡとほぼ同
一外径で中央に吸入口を有するプレ−トＢを対向させ、
その間に、放射状に複数のブレ−ドを配置し、該ブレ−
ドの端面上に設けた複数の爪部が、該爪部に対向するプ
レ−トＡ、およびプレ−トＢ上に設けられた孔部に嵌合
して固定される遠心羽根車であって、前記プレ−トＡ、
プレ−トＢ及びブレ−ドの表面に塗装を施したことにあ
る。また、本発明の特徴とするところは、一端面側が開
口した円筒状のハウジング内に回転子および固定子を収
納し、前記端面上にエンドブラケットを配設固定したモ
ータと、前記エンドブラケットを貫通した前記回転子の
回転軸に取付けられた遠心羽根車、その流路後段側にデ
ィフュ−ザを配置し、さらにそれを覆うファンケーシン
グを有し、該遠心羽根車からの吐出気流を前記エンドブ
ラケット側からハウジング内を通して前記モータを冷却
する電動送風機であって、前記遠心羽根車は中央に回転
軸を取り付ける軸穴を有するプレ−トＡと該プレ−トＡ
に対向し中央に吸入口を有するプレ−トＢの間に放射状
に複数のブレ−ドを配置固定し、各々の表面に塗装を施
して構成され、前記プレ−トＢの吸入口部に摺設するシ
ール部材を、前記ファンケーシングの内面に取り付け固
定したことにある。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is characterized in that a plate A having a shaft hole at the center for mounting a rotating shaft is substantially the same as the plate A. A plate B having an inlet at the center in diameter is opposed to the plate B,
In the meantime, a plurality of blades are arranged radially and
A centrifugal impeller having a plurality of claw portions provided on an end surface of a pad fitted and fixed to holes provided on a plate A and a plate B opposed to the claw portions, , The plate A,
Pre - DOO B and blur - the de surface lies in subjected to painting. Further, the present invention is characterized in that a rotor and a stator are housed in a cylindrical housing having one end face opened, and an end bracket is disposed and fixed on the end face, and the end bracket is penetrated. A centrifugal impeller attached to the rotating shaft of the rotor, a diffuser disposed downstream of the flow path of the centrifugal impeller, and a fan casing for covering the diffuser; and an end bracket for discharging airflow from the centrifugal impeller. An electric blower for cooling the motor through the housing from the side, wherein the centrifugal impeller has a plate A having a shaft hole for mounting a rotary shaft at the center thereof;
A plurality of blur radially between bets B - - opposing pre having an inlet in the center in the de arranged fixed, is constituted by applying painting on each surface, the pre - the inlet portion of the bets B The sliding member is mounted and fixed on the inner surface of the fan casing.
【０００６】プレ−トＡ、プレ−トＢ内面とブレ−ド端
面との接合部に生ずる隙間は、０．１ｍｍ程度であり、
上記の如く塗装を施せば、この隙間を埋めることが可能
で、前述の空気洩れを防止すると共にこの塗装による重
量のアンバランスの発生を抑制することができ、遠心羽
根車の性能を容易に向上させることができる。The gap generated at the joint between the inner surfaces of the plates A and B and the blade end surface is about 0.1 mm.
If Hodokose a如rather painting above, can fill this gap, it is possible to suppress the occurrence of imbalance in weight due to the coating as well as preventing the leakage of air above, facilitates the performance of the centrifugal impeller Can be improved.
【０００７】但し、プレ−トＢの吸入口に摺設するシー
ル部材を、ファンケーシングの内面に取り付け、この間
に生ずる循環流を防止した送風機構成においては、プレ
−トＢのシール部材に摺接する部分を塗装しないように
すれば、摩擦抵抗を増やすことなく循環流を防止でき、
また上記遠心羽根車内部の空気洩れも防止してさらに性
能向上が達成できる。However, in a blower configuration in which a seal member slidably provided at the inlet of the plate B is attached to the inner surface of the fan casing and a circulating flow generated therebetween is prevented, the seal member slidably contacts the seal member of the plate B. If you do not paint the part, you can prevent circulating flow without increasing frictional resistance,
In addition, air leakage inside the centrifugal impeller can be prevented to further improve the performance.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施例を図面に沿
って説明する。図１は、電気掃除機に用いられる電動送
風機１に適用した例を示す。電動送風機１は整流子形電
動機からなる電動機部３と遠心形送風機部２からなる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which the present invention is applied to an electric blower 1 used for a vacuum cleaner. The electric blower 1 includes a motor unit 3 composed of a commutator-type motor and a centrifugal blower unit 2.
【０００９】電動機部３は、ハウジング２１とエンドブ
ラケット２２の内部に軸受１５及び１６に両端支持構成
された回転子１２を有し、回転軸２３が送風機部２側に
延びている。固定子１１はハウジング２１に固定させか
つ巻線が所定数巻かれている。回転子１２には整流子２
４が固定され、ハウジング２１にネジ２５にて位置決め
固定されるブラシ保持器２６に保持されるカーボンブラ
シ２７が整流子２４の外周面に当接し、電気的に接続す
る。The motor unit 3 has a rotor 12 supported on both ends by bearings 15 and 16 inside a housing 21 and an end bracket 22, and a rotating shaft 23 extends toward the blower unit 2. The stator 11 is fixed to the housing 21 and has a predetermined number of windings. The commutator 2 is attached to the rotor 12.
4 is fixed, and a carbon brush 27 held by a brush holder 26 positioned and fixed to the housing 21 with a screw 25 abuts on the outer peripheral surface of the commutator 24 to be electrically connected.
【００１０】一方、エンドブラケット２２から延びた回
転軸２３には、遠心羽根車４が一体固定されている。遠
心羽根車４の外周側には、複数の案内翼を有するディフ
ューザ５、さらにそれらを覆うファンケーシング６がエ
ンドブラケット２２の外周部に締結固定されている。電
動送風機１を運転した場合の空気の流れは、遠心羽根車
４の内周入口部から吸入された空気が、遠心羽根車４の
回転によって外周出口部から吐出され、ディフュ−ザ５
を通過したあとエンドブラケット２２側から、電動機部
３内部に導かれ、冷却してハウジング２１側から外部へ
排気する。On the other hand, a centrifugal impeller 4 is integrally fixed to a rotating shaft 23 extending from the end bracket 22. On the outer peripheral side of the centrifugal impeller 4, a diffuser 5 having a plurality of guide blades and a fan casing 6 covering them are fastened and fixed to the outer peripheral portion of the end bracket 22. When the electric blower 1 is operated, the air flow is such that air sucked from the inner peripheral inlet of the centrifugal impeller 4 is discharged from the outer peripheral outlet by the rotation of the centrifugal impeller 4, and the diffuser 5
Is guided from the end bracket 22 side to the inside of the electric motor unit 3, cooled, and exhausted from the housing 21 side to the outside.
【００１１】一般的に掃除機用の電動送風機１は、吸込
圧力を増すために高速回転（３００００回転毎分以上）
に設定されている。従って、遠心羽根車４は高速回転に
よる遠心力に耐えうる機械的強度が必要とされ、通常、
図４に示すようなプレス加工成形されたアルミの薄板や
鋼板などにより構成される。遠心羽根車４は、中央に回
転軸２３を取り付けるための軸穴（４ｃ’）を有するプ
レ−トＡ（４ｃ）とプレ−トＡ（４ｃ）に対向し中央に
吸入口（４ａ’）を有するプレ−トＢ（４ａ）の間に、
放射状に複数のブレ−ド（４ｂ）を配置固定した構成と
なっている。各部品の固定については、ブレ−ド（４
ｂ）の端面上に複数の爪部（４ｂｂ）を設けて、該爪部
（４ｂｂ）に対向するように、プレ−トＡ（４ａ）、Ｂ
（４ｃ）に設けられた孔部（４ａａ、４ｃｃ）に嵌合し
て位置決めされ、加締等により各々を固定させる構造に
なっている。さらに遠心羽根車４において、前記プレ−
トＡ（４ｃ）、プレ−トＢ（４ａ）の内面とブレ−ド
（４ｂ）端面との接合部に接着剤を塗布している。Generally, the electric blower 1 for a vacuum cleaner rotates at a high speed (more than 30,000 rotations per minute) in order to increase the suction pressure.
Is set to Therefore, the centrifugal impeller 4 is required to have mechanical strength that can withstand the centrifugal force due to high-speed rotation.
It is composed of a press-formed aluminum thin plate or steel plate as shown in FIG. The centrifugal impeller 4 has a plate A (4c) having a shaft hole (4c ') for attaching the rotating shaft 23 at the center, and a suction port (4a') at the center facing the plate A (4c). Between the plates B (4a)
A plurality of blades (4b) are radially arranged and fixed. For fixing each part, see Blade (4)
A plurality of claws (4bb) are provided on the end face of b), and plates A (4a) and B are provided so as to face the claws (4bb).
The holes (4aa, 4cc) provided in (4c) are fitted and positioned, and each is fixed by caulking or the like. Further, in the centrifugal impeller 4, the pre-press
An adhesive is applied to the joint between the inner surface of the plate A (4c) and the plate B (4a) and the end surface of the blade (4b).
【００１２】図２に示されるように各部品がプレス加工
成形による寸法精度のばらつきで、上記の接合部に０．
１ｍｍ程度の隙間が生ずることがある。上記接着剤はこ
の隙間を埋めるために、塗布される。図５に示すよう
に、回転中の遠心羽根車４内部の圧力はブレ−ドのＳ面
側では高く、Ｔ面側で低く分布しており、上述の隙間が
発生すると、Ｓ面側からＴ面側へ空気洩れが生じて遠心
羽根車の性能が低下してしまうという問題があったが、
接着剤により洩れを防止して性能向上が達成できた。し
かしながら、上記接着剤はプレ−トＡ（４ｃ）、プレ−
トＢ（４ａ）の内面とブレ−ド（４ｂ）端面との接合部
にのみ塗布できればよいが、これは作業性が悪く量産性
および経済性とも低下させてしまう問題が残る。一方遠
心羽根車４全体を接着剤に浸漬させるデッピング方式で
は、乾燥後に偏った接着剤溜りが生じて、遠心羽根車４
のアンバランスとなってしまう恐れもある。全体を均一
に塗る方法としては、静電や電着方式による塗装があ
り、作業性やアンバランスの問題もなく、確実に上述の
隙間を埋めるという目的を達成できる。As shown in FIG. 2, each part has a variation in dimensional accuracy due to press working, so that the above-mentioned joint has a thickness of 0.1%.
A gap of about 1 mm may occur. The adhesive is applied to fill this gap. As shown in FIG. 5, the pressure inside the centrifugal impeller 4 during rotation is distributed high on the S side of the blade and low on the T side. There was a problem that the air leaked to the surface side and the performance of the centrifugal impeller was reduced,
Adhesive prevented leakage and improved performance. However, the above adhesive is plate A (4c),
It is sufficient if the coating can be applied only to the joint between the inner surface of the blade B (4a) and the end surface of the blade (4b). On the other hand, in the dipping method in which the entire centrifugal impeller 4 is immersed in the adhesive, an uneven adhesive pool is generated after drying, and the centrifugal impeller 4
There is a risk of imbalance. As a method of uniformly coating the entire surface, there is coating by an electrostatic or electrodeposition method, and there is no problem of workability or unbalance, and the object of reliably filling the above gap can be achieved.
【００１３】また図２に示すように、ファンケーシング
６の内周入口部に、プレ−トＢ（４ａ）の吸入口（４
ａ’）に摺設するシール部材７を設けて、遠心羽根車４
の吐出気流の循環（矢印）を防止して送風機性能の向上
化を図った構造が知られている。この場合、遠心羽根車
４に塗布した接着剤や塗料がシ−ル部材７との摺接にお
いて、摩擦抵抗が増して電動送風機１の性能低下を引き
起こす恐れがある。そのような場合、図３に示されるよ
うに、上記の摺接するプレ−トＢ（４ａ）の吸入口（４
ａ’）近傍は、塗装時にマスクして塗料を塗布しないよ
うにすれば、シ−ル部材７とプレ−トＢ（４ａ）の摺接
は変わらず、摩擦抵抗が増えるようなこともない。As shown in FIG. 2, an inlet (4) of the plate B (4a) is
a '), a centrifugal impeller 4
A structure is known in which the circulation (arrow) of the discharge airflow is prevented to improve the blower performance. In this case, when the adhesive or the paint applied to the centrifugal impeller 4 is in sliding contact with the seal member 7, the frictional resistance may be increased and the performance of the electric blower 1 may be reduced. In such a case, as shown in FIG. 3, the inlet (4) of the plate B (4a) in sliding contact
In the vicinity of a '), if the paint is not applied by masking at the time of painting, the sliding contact between the seal member 7 and the plate B (4a) does not change, and the frictional resistance does not increase.
【００１４】[0014]
【発明の効果】以上説明したように本発明によれば、プ
レ−ト及びブレ−ドに塗装を施すようにしているので、
遠心羽根車における重量アンバランスの発生を抑制しつ
つ隙間を塞いで空気洩れを防止することができ、電動送
風機の性能を容易に向上することができる。According to the present invention as described in the foregoing, the pre - DOO and blur - since as subjected to painting on de,
It closes the gap while suppressing the occurrence of weight unbalance of the centrifugal impeller can be prevented air leakage, the electric feed
The performance of the blower can be easily improved.
【００１５】また、ファンケーシングに設けたシール部
材と、プレ−トＢの吸入口を摺設させて循環流を防止す
る構造部分では、摺接するプレ−トＢの吸入口近傍には
塗料膜を設けないでシール部材を直に摺接させるように
したので、摺接による摩擦抵抗の増加を抑制することが
でき、更なる性能向上を達成できる。Further, a seal member provided on the fan casing, pre - to prevent circulation flow by Suri設the inlet of the preparative B
The structural part that, in sliding contact with the pre - As the suction port near the bets B is directly sliding the seal member without providing a paint film
Since the, it is possible to suppress the increase of that by the sliding friction resistance
And further improvement in performance can be achieved.
【図１】本発明の一実施形態を示す電動送風機の縦断側
面図である。FIG. 1 is a vertical side view of an electric blower showing one embodiment of the present invention.
【図２】図１に示した電動送風機における送風機部の詳
細を示す縦断側面図である。FIG. 2 is a vertical sectional side view showing details of a blower unit in the electric blower shown in FIG.
【図３】図１に示した電動送風機における塗装された遠
心羽根車の斜視図である。FIG. 3 is a perspective view of a painted centrifugal impeller in the electric blower shown in FIG. 1;
【図４】図３に示した遠心羽根車の組立作業形態を示す
斜視図である。FIG. 4 is a perspective view showing an assembling work mode of the centrifugal impeller shown in FIG. 3;
【図５】図３に示した遠心羽根車の内部を示す横断平面
図である。FIG. 5 is a cross-sectional plan view showing the inside of the centrifugal impeller shown in FIG. 3;
４…遠心羽根車、 ４ｃ…プレ−トＢ、 ４ａ…プレ−
トＢ、 ４ｃｃ…孔部、４ａａ…孔部、 ４ｃ’…軸
穴、 ４ａ’…吸入口、 ５…ディフュ−ザ、４ｂ…ブ
レ−ド、 ６…ファンケ−シング、 ４ｂｂ…爪部、
７…シ−ル部材。4 ... centrifugal impeller, 4c ... plate B, 4a ... pre-
B, 4cc: hole, 4aa: hole, 4c ': shaft hole, 4a': suction port, 5: diffuser, 4b: blade, 6: fan casing, 4bb: claw,
7. Seal member.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−245497（ＪＰ，Ａ) 特開 平２−146299（ＪＰ，Ａ) 特開 昭54−77312（ＪＰ，Ａ) 特開 平５−57226（ＪＰ，Ａ) 実開 昭59−144197（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F04D 29/00 - 29/16 F04D 29/18 - 29/38 F04D 29/40 - 29/56 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-245497 (JP, A) JP-A-2-146299 (JP, A) JP-A-54-77312 (JP, A) 57226 (JP, A) Fully open sho 59-144197 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) F04D 29/00-29/16 F04D 29/18-29/38 F04D 29/40-29/56
Claims (3)
に回転子および固定子を収納し、前記端面上にエンドブ
ラケットを配設固定したモータと、前記エンドブラケッ
トを貫通した前記回転子の回転軸に取付けられた遠心羽
根車、その流路後段側にディフュ−ザを配置し、さらに
それを覆うファンケーシングを有し、該遠心羽根車から
の吐出気流を前記エンドブラケット側からハウジング内
を通して前記モータを冷却する電動送風機であって、 前記遠心羽根車は、中央に回転軸を取り付ける軸穴を有
するプレ−トＡと該プレ−トＡに対向し中央に吸入口を
有するプレ−トＢの間に放射状に複数のブレ−ドを配置
固定し、各々の表面に塗装を施して構成し、前記プレ−
トＢの吸入口部に摺設するシール部材を前記ファンケー
シングの内面に取り付け固定し、前記プレ−トＢの前記
シール部材に摺接する部分及びその近傍は前記塗装を設
けずに該プレートＢを露出させて前記シール部材を該プ
レートＢに直に摺接させるようにしたことを特徴とする
電動送風機。 1. A motor in which a rotor and a stator are housed in a cylindrical housing having one open end, and an end bracket is disposed and fixed on the end face, and a rotation of the rotor penetrating the end bracket. A centrifugal impeller attached to the shaft, a diffuser disposed on the downstream side of the flow path thereof, and a fan casing covering the diffuser; and a discharge airflow from the centrifugal impeller is passed through the housing from the end bracket side. An electric blower for cooling a motor, wherein the centrifugal impeller comprises a plate A having a shaft hole for attaching a rotary shaft at a center and a plate B facing the plate A and having a suction port at a center. A plurality of blades are arranged and fixed radially between them, and each of the surfaces is coated with a paint.
A seal member slidably attached to the suction port of the plate B is attached and fixed to the inner surface of the fan casing, and the plate B is slidably contacted with the seal member and the vicinity thereof is provided with the plate B without the coating. An electric blower wherein the seal member is exposed to slide directly on the plate B.
シール部材に摺接する部分及びその近傍は、マスクによ
って塗装を施さないことを特徴とする電動送風機。 2. The electric blower according to claim 1, wherein a portion of the plate B which comes into sliding contact with the seal member and the vicinity thereof are not coated with a mask.
電着塗装としたことを特徴とする電動送風機。 3. The coating according to claim 1 , wherein the coating is
An electric blower characterized by electrodeposition coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28303795A JP2974951B2 (en) | 1995-10-31 | 1995-10-31 | Electric blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28303795A JP2974951B2 (en) | 1995-10-31 | 1995-10-31 | Electric blower |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12094299A Division JPH11336695A (en) | 1999-04-28 | 1999-04-28 | Radial impeller and electric blower using it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09126185A JPH09126185A (en) | 1997-05-13 |
| JP2974951B2 true JP2974951B2 (en) | 1999-11-10 |
Family
ID=17660407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28303795A Expired - Lifetime JP2974951B2 (en) | 1995-10-31 | 1995-10-31 | Electric blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2974951B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1394295B1 (en) | 2009-05-08 | 2012-06-06 | Nuovo Pignone Spa | CENTRIFUGAL IMPELLER OF THE CLOSED TYPE FOR TURBOMACCHINE, COMPONENT FOR SUCH A IMPELLER, TURBOMACCHINA PROVIDED WITH THAT IMPELLER AND METHOD OF REALIZING SUCH A IMPELLER |
| IT1397058B1 (en) | 2009-11-23 | 2012-12-28 | Nuovo Pignone Spa | CENTRIFUGAL IMPELLER MOLD, MOLD INSERTS AND METHOD TO BUILD A CENTRIFUGAL IMPELLER |
| IT1397057B1 (en) | 2009-11-23 | 2012-12-28 | Nuovo Pignone Spa | CENTRIFUGAL AND TURBOMACHINE IMPELLER |
| CN102135110B (en) | 2010-01-27 | 2014-12-31 | 德昌电机(深圳)有限公司 | Centrifugal impeller |
| JP4785980B1 (en) * | 2010-08-10 | 2011-10-05 | 株式会社モキ製作所 | Combustion device |
| ITCO20110064A1 (en) | 2011-12-14 | 2013-06-15 | Nuovo Pignone Spa | ROTARY MACHINE INCLUDING A ROTOR WITH A COMPOSITE IMPELLER AND A METAL SHAFT |
| JP6101551B2 (en) * | 2013-04-26 | 2017-03-22 | 日立アプライアンス株式会社 | Household vacuum cleaner |
| ITCO20130067A1 (en) | 2013-12-17 | 2015-06-18 | Nuovo Pignone Srl | IMPELLER WITH PROTECTION ELEMENTS AND CENTRIFUGAL COMPRESSOR |
| CN118008859B (en) * | 2024-04-10 | 2024-06-25 | 浙江金盾风机股份有限公司 | Nuclear-grade emergency exhaust fan with low vibration and low leakage |
-
1995
- 1995-10-31 JP JP28303795A patent/JP2974951B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09126185A (en) | 1997-05-13 |
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