JP3817849B2 - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
JP3817849B2
JP3817849B2 JP19964597A JP19964597A JP3817849B2 JP 3817849 B2 JP3817849 B2 JP 3817849B2 JP 19964597 A JP19964597 A JP 19964597A JP 19964597 A JP19964597 A JP 19964597A JP 3817849 B2 JP3817849 B2 JP 3817849B2
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JP
Japan
Prior art keywords
motor
impeller
communication hole
dust collection
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 - Fee Related
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JP19964597A
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Japanese (ja)
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JPH1142182A (en
Inventor
剛 西村
信弘 林
誠二 山口
吉隆 村田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
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Priority to JP19964597A priority Critical patent/JP3817849B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、一般家庭で使用される電気掃除機に関するもので、特に近年の高出力、高効率化に関するものである。
【0002】
【従来の技術】
従来の電気掃除機用電動送風機を図9、図10を用いて説明する。1は駆動用のモータであり、このモータ1のブラケット2には中央に吸気口3を有するケーシング4が圧入されている。モータ軸5には遠心型のブレード6と前面シュラウド7とディスク8で形成されたインペラ9が取り付けられ、モータ1により駆動される。10はインペラ9とブラケット2との間に設けられたインペラ9で発生した高速の気流を徐々に圧力回復するエアーガイドで、インペラ9と共にケーシング4に内包されている。インペラ9とケーシング4との間には気密性をもたせるため、ケーシング4の吸気口3がある部分の内面に間装体として吸気口ガイド11を介在させてインペラ9に当たるようにするか、あるいはPTFE(ポリテトラフロロエチレン)等のすべり性のよいシール材12を吸気口3の内側(インペラ側)の円周上に配設し、ケーシング4の内面に張り付け、インペラ9の吸気口3がシール材12に当たるようにし、気密性を保つ設計になっている。
【0003】
また、空気の流れをスムーズにするための従来の電気掃除機の構成としては、次のようなものがすでに実用となっている。すなわち図11に示すように、100は前部に上方が開口した集塵室101、後部にモータ1を備えたモータ室102を形成した下本体である。103は集塵室101の前方の下本体100に設けられた吸込口であり、集塵室101とモータ室102の間には、連通孔部104を有する隔壁105が下本体100に一体に形成されている。また隔壁105の集塵室側には塵埃がモータに侵入するのを防止するためのフィルタ(図示せず)が装着され、集塵室101の上部には開閉可能な集塵室蓋106が、本体100のモータ室上部を覆う上本体107に回動自在に取り付けられている。モータ1は前方略中央部に吸気口3を形成し、前部を前保持体108、後部を後保持体109でそれぞれ下本体100と上本体107とで挟み込んで保持されており、モータの吸気口3と隔壁105の間には、連通孔部104からモータの吸気口3に徐々に通路面積を絞り込む空気の流れをスムーズにするための傾斜面を形成する略漏斗状の支持板110がモータを保持する前保持体108に挟み込まれるように配設されている。
【0004】
【発明が解決しようとする課題】
このような従来の電気掃除機用電動送風機にあっては、ケーシング4に設けられた間装材またはシール材12とインペラ9の前面シュラウド7の内面との間に段差があり、モータ1の吸気口3より吸い込まれた空気はケーシング4からインペラ9に流入する際に乱流となり、モータ1での入口での圧力損失の原因となるものであった。
【0005】
また、このような電気掃除機本体の構成にあっては、モータ1の吸気口3とモータ1と連通孔部104の間に配設された略漏斗状の支持板110とのつながりは、吸気口径は一致させているものの、断面形状的には不連続で、その部分で空気の流れが乱れ、それが圧力損失となり、吸込力の低下につながるものであった。
【0006】
また、そのような支持板110はモータ1と連通孔部104の間にのみ取り付けられており、その作用は隔壁105より後ろのモータ室内のみで働き、集塵室内の整流は無視されたものであった。
【0007】
本発明は以上のような従来の課題を解決しようとするものであって、高出力、高効率の電動送風機または電気掃除機を提供することを目的としている。
【0008】
【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は、インペラとエアーガイドを内包するケーシングの吸気口から前記インペラの前面シュラウドの内面の間が滑らかな曲面となるように形成し、エアーがスムーズに流れるように構成したことで、モータの吸気口とインペラとの間での損失が減少し、モータの出力がアップするとともに、本体の吸込仕事率の向上につながり、モータ室と集塵室を内蔵し、そのモータ室と集塵室とを吸気が連通する連通孔部を備えた隔壁を形成することで分割し、前記連通孔部の通路面積をモータの吸気口より大きく設定し、連通孔部とモータの吸気口との間に一定の空間を形成し、かつ前記空間に連通孔部から吸気口に通路面積を徐々に絞り込む傾斜面を形成し、前記傾斜面とモータのケーシングとの接合が滑らかな曲面で連なるようにして電気掃除機としたものである。そして、前記電気掃除機にはモータの吸気口部から連通孔部に形成された傾斜面と、前記連通孔部を隔てて、集塵室内部までを滑らかな曲面で連なる傾斜面にしたものである。
【0009】
【発明の実施の形態】
本発明は、モータによって回転駆動されるインペラと、前記インペラより排出された気流を導くエアーガイドと、前記インペラと前記エアーガイドを内包するケーシングを備えた電動送風機と、後部に前記電動送風機を内蔵したモータ室を備え、前部に塵埃を集積する集塵袋を備えた集塵室を形成し、前記モータ室と前記集塵室とを吸気が連通する連通孔部を備えた隔壁を形成することで分割し、前記連通孔部の通路面積を前記電動送風機の吸気口より大きく設定し、前記連通孔部と前記電動送風機の吸気口との間に一定の空間を形成し、かつ前記空間に連通孔部から吸気口に通路面積を徐々に絞り込む傾斜面を形成し、前記傾斜面と前記インペラの前面シュラウドの内面の間を前記ケーシングにより滑らかな曲面で連なるように形成した、モータの吸気口部とモータと連通孔部の間の支持板とのつながり部分での空気の流れは乱れることがなく、吸込力が強い電気掃除機とすることができる。
【0010】
【実施例】
(実施例1)
以下本発明の実施例1について、図1、図2を用いて説明する。
【0011】
1は駆動用のモータであり、このモータ1のブラケット2には中央に吸気口3を有するケーシング4が圧入されている。モータ軸5には遠心型のブレード6と前面シュラウド7とディスク8で形成されるインペラ9が取り付けられ、モータ1により駆動される。10はインペラ9とブラケット2との間に設けられたインペラ9で発生した高速の気流を徐々に圧力回復するエアーガイドで、インペラ9と共にケーシング4に内包されている。11はケーシング4の吸気口3がある部分の内面に装着されて、インペラ9へ気流を導く吸気ガイドで、インペラ9とケーシング4との隙間を埋め、エアー漏れを防いでいる。吸気口ガイド11からインペラ9の前面シュラウド7の内面(ブレード6側)に至るまでの間は、その子午線形状の曲面が滑らかな円弧になるように形成されている。
【0012】
上記の構成により、吸気口3から吸い込まれた気流は、吸気口ガイド11を通り、インペラ9に至るが、その間の接合が滑らかな曲面で行われているため、乱流が起こりにくく、空気の流れがスムーズで、その部分での圧力の損失を低減できる。
【0013】
(実施例2)
次に本発明の実施例2について、図3、図4、図5を用いて説明する。なお上記実施例1と同一構成部分については同一符号を付与して、その詳細な説明を省略する。
【0014】
図3において、100は前部に集塵室101を有し、後部には塵埃吸引用のモータ1を組み込んだモータ室102を形成した下本体で、前記集塵室101とモータ室102は連通孔部104を形成した下本体100に設けられた隔壁105によって分離されている。106は集塵室101を覆うように上本体107に回動自在に設置された集塵室蓋である。モータ1は軟体で形成された前保持体108と後保持体109によって上本体107と下本体100に各々設けたリブA、リブB、リブCで保持されている。また、集塵室101とモータ室102を連通する連通孔部104からモータ1の吸気口3に徐々に通路面積を絞り込む傾斜面を形成する略漏斗状の支持板110がモータ1を保持する前保持体108に挟み込まれるように配設されている。図4、図5において、前記支持板110はケーシング4の吸気口3の内面に装着された吸気口ガイド11にその断面形状が滑らかな略同一曲面を描くように連なっており、さらに、吸気口ガイド11からインペラ9の前面シュラウド7の内面(ブレード6側)に至るまでの間も、その子午線形状の曲面が滑らかな略同一曲面となるように形成されている。
【0015】
上記の構成により、掃除機本体の集塵室101より隔壁105の連通孔部104を通過した吸気は、支持板110の傾斜面に誘導されてモータ1の吸気口3に達し、吸気口ガイド11を通り、インペラ9に至る。気流はその間の接合が滑らかな曲面で行われているため、乱流が起こりにくく、空気の流れがスムーズとなり、その部分での圧力の損失が低減される。
【0016】
(実施例3)
次に本発明の実施例3について、図6、図7を用いて説明する。なお上記の実施例と同一構成部分については同一符号を付与して、その詳細な説明を省略する。図6において、モータ1の吸気口3と隔壁105の間には、傾斜面を形成する略漏斗状の支持板110が配設されている。集塵室101の内部には前記支持板110から隔壁105を隔てて、略同一曲面で連なる同じく前支持板111が設置されている。
【0017】
上記構成により、下本体100の集塵室101内に装着された集塵用の紙袋(図示せず)を通過した気流は、掃除機本体の集塵室101に設置した前支持板111に誘われ、隔壁105の連通孔部104を通過し、今度はモータ1の吸気口と隔壁105の間に設けられた支持板110の傾斜面に沿って、モータ1の吸気口3に達し、吸気口ガイド11を通り、インペラ9に至る。気流はその間の接合が滑らかな曲面で行われているため、乱流が起こりにくく、空気の流れがスムーズとなり、その部分での圧力の損失が低減される。
【0018】
なお、支持板110には、実際には図7に示すようなパッキン112を取り付け、モータ1を挿入して、支持板110とモータ1の中心を合わせた後、モータ1を前方向に圧接させて固定する。この構成により、支持板110とモータの吸気口3とのエアータイトが確実にできるとともに、軸に近い位置でモータ1を保持するため、ラジアル方向の振動を抑制することができる。
【0019】
(実施例4)
次に本発明の実施例4について、図8を用いて説明する。なお上記の実施例と同一構成部分については同一符号を付与して、その詳細な説明を省略する。図8において、モータ1の吸気口3と隔壁105の間の略漏斗状の傾斜面を上本体107と下本体100で形成し、集塵室101の内部の傾斜面についても略漏斗形状の下半分は下本体100で形成し、上半分は集塵室蓋106で形成するものである。
【0020】
上記構成により、実施例3の作用に加え、傾斜面を上下本体107、100および集塵室蓋106で形成したことにより、部品点数の削減ができ、組立性の向上も図れるものである。
【0021】
【発明の効果】
本発明の請求項1記載の発明によれば、ケーシングの吸気口からインペラの前面シュラウドの内面の間を、滑らかな曲面で形成し、かつ、連通孔部とモータの吸気口との間の傾斜面とモータのケーシングとの接合を、滑らかな曲面となるように形成したことにより、吸気の乱流が起こりにくく、空気の流れがスムーズになり、その部分での圧力の損失を低減でき、電動送風機の出力向上、効率のアップが図れるものである。
【図面の簡単な説明】
【図1】 本発明の実施例1における電気掃除機用電動送風機の部分破断側面図
【図2】 同電動送風機の要部拡大断面図
【図3】 本発明の実施例2における電気掃除機の断面図
【図4】 同電気掃除機の電動送風機の部分破断側面図
【図5】 同電動送風機の要部拡大断面図
【図6】 本発明の実施例3における電気掃除機の断面図
【図7】 同電気掃除機の部分断面図
【図8】 本発明の実施例4における電気掃除機の断面図
【図9】 従来例の電気掃除機用電動送風機の部分破断側面図
【図10】 同電動送風機の要部断面図
【図11】 同電気掃除機の断面図
【符号の説明】
1 モータ
2 ブラケット
3 吸気口
4 ケーシング
6 ブレード
7 前面シュラウド
9 インペラ
10 エアーガイド
11 吸気口ガイド
100 下本体
101 集塵室
102 モータ室
103 吸気口
104 連通孔部
105 隔壁
106 集塵室蓋
107 上本体
108 前保持体
109 後保持体
110 支持板
111 前支持板
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner used in a general household, and particularly relates to recent high output and high efficiency.
[0002]
[Prior art]
A conventional electric blower for a vacuum cleaner will be described with reference to FIGS. Reference numeral 1 denotes a driving motor, and a casing 4 having an air inlet 3 at the center is press-fitted into a bracket 2 of the motor 1. An impeller 9 formed of a centrifugal blade 6, a front shroud 7 and a disk 8 is attached to the motor shaft 5 and is driven by the motor 1. 10 is an air guide that gradually recovers the pressure of a high-speed air flow generated by the impeller 9 provided between the impeller 9 and the bracket 2, and is included in the casing 4 together with the impeller 9. In order to provide airtightness between the impeller 9 and the casing 4, an air inlet guide 11 is interposed as an intermediate body on the inner surface of the portion of the casing 4 where the air inlet 3 is present, or the PTFE is contacted with the PTFE. A sealing material 12 having good sliding property such as (polytetrafluoroethylene) is disposed on the inner circumference (impeller side) of the intake port 3 and attached to the inner surface of the casing 4, and the intake port 3 of the impeller 9 is sealed. 12 is designed to maintain airtightness.
[0003]
Moreover, as a structure of the conventional vacuum cleaner for smoothing the air flow, the following is already in practical use. That is, as shown in FIG. 11, reference numeral 100 denotes a lower main body in which a dust collection chamber 101 having an upper opening at the front portion and a motor chamber 102 having the motor 1 at the rear portion are formed. Reference numeral 103 denotes a suction port provided in the lower main body 100 in front of the dust collecting chamber 101, and a partition wall 105 having a communication hole 104 is formed integrally with the lower main body 100 between the dust collecting chamber 101 and the motor chamber 102. Has been. A filter (not shown) for preventing dust from entering the motor is attached to the dust collection chamber side of the partition wall 105, and a dust collection chamber lid 106 that can be opened and closed is provided above the dust collection chamber 101. The upper body 107 that covers the upper part of the motor chamber of the main body 100 is rotatably attached. The motor 1 has an air inlet 3 formed at a substantially central portion in the front, and is held between the lower main body 100 and the upper main body 107 by holding the front portion by the front holding body 108 and the rear portion by the rear holding body 109, respectively. Between the port 3 and the partition wall 105, a substantially funnel-shaped support plate 110 that forms an inclined surface for smoothing the flow of air that gradually narrows the passage area from the communication hole portion 104 to the air intake port 3 of the motor. It is arrange | positioned so that it may be inserted | pinched between the front holding bodies 108 which hold | maintain.
[0004]
[Problems to be solved by the invention]
In such a conventional electric blower for an electric vacuum cleaner, there is a step between the interlining material or sealing material 12 provided in the casing 4 and the inner surface of the front shroud 7 of the impeller 9, and the intake air of the motor 1. The air sucked from the port 3 becomes turbulent when it flows into the impeller 9 from the casing 4, and causes pressure loss at the inlet of the motor 1.
[0005]
Further, in such a configuration of the main body of the vacuum cleaner, the connection between the intake port 3 of the motor 1 and the substantially funnel-shaped support plate 110 disposed between the motor 1 and the communication hole 104 is the intake air. Although the diameters were matched, the cross-sectional shape was discontinuous, and the air flow was disturbed at that portion, which resulted in pressure loss and reduced suction force.
[0006]
Further, such a support plate 110 is attached only between the motor 1 and the communication hole 104, and its action works only in the motor chamber behind the partition wall 105, and rectification in the dust collection chamber is ignored. there were.
[0007]
The present invention is intended to solve the conventional problems as described above, and an object thereof is to provide a high-power, high-efficiency electric blower or vacuum cleaner.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention forms a smooth curved surface between the air inlet of the casing containing the impeller and the air guide and the inner surface of the front shroud of the impeller so that air flows smoothly. With this configuration, the loss between the motor inlet and the impeller is reduced, the motor output is increased, the suction power of the main body is improved, and the motor chamber and dust collection chamber are built in. The motor chamber and the dust collection chamber are divided by forming a partition wall having a communication hole portion through which intake air communicates, and the passage area of the communication hole portion is set larger than the intake port of the motor, and the communication hole portion and the motor A curved surface that forms a constant space between the intake port and an inclined surface that gradually narrows the passage area from the communication hole portion to the intake port in the space, and that smoothly joins the inclined surface and the motor casing. so So as to to is obtained by a vacuum cleaner. In the vacuum cleaner, an inclined surface formed in the communication hole portion from the air intake port portion of the motor and an inclined surface that continues from the communication hole portion to the inside of the dust collection chamber with a smooth curved surface. is there.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The present invention includes an impeller that is rotationally driven by a motor, an air guide that guides an airflow discharged from the impeller, an electric blower that includes a casing that encloses the impeller and the air guide, and a built-in electric blower at the rear. A dust collecting chamber having a dust collecting bag for collecting dust at a front portion is formed, and a partition wall having a communication hole portion through which intake air communicates is formed between the motor chamber and the dust collecting chamber. The passage area of the communication hole portion is set larger than the intake port of the electric blower, a constant space is formed between the communication hole portion and the intake port of the electric blower, and the space an inclined surface to narrow gradually the passage area in the intake port from the communication hole portion is formed, to form between the inner surface of the front shroud of the impeller and the inclined surface so as to be continued in a smooth curved surface by said casing, Air flow without disturbance in connection portion of the support plate between the inlet portion of the chromatography data and motor and communicating holes, it is possible to suction force is strong vacuum cleaner.
[0010]
【Example】
Example 1
Embodiment 1 of the present invention will be described below with reference to FIGS.
[0011]
Reference numeral 1 denotes a driving motor, and a casing 4 having an air inlet 3 at the center is press-fitted into a bracket 2 of the motor 1. An impeller 9 formed of a centrifugal blade 6, a front shroud 7 and a disk 8 is attached to the motor shaft 5, and is driven by the motor 1. 10 is an air guide that gradually recovers the pressure of a high-speed air flow generated by the impeller 9 provided between the impeller 9 and the bracket 2, and is included in the casing 4 together with the impeller 9. Reference numeral 11 denotes an air inlet guide that is attached to the inner surface of the portion of the casing 4 where the air inlet 3 is located, and guides the airflow to the impeller 9, filling a gap between the impeller 9 and the casing 4 to prevent air leakage. From the inlet guide 11 to the inner surface (blade 6 side) of the front shroud 7 of the impeller 9, the meridian curved surface is formed into a smooth arc.
[0012]
With the above configuration, the airflow sucked from the intake port 3 passes through the intake port guide 11 and reaches the impeller 9, but since the joining between them is performed with a smooth curved surface, turbulence hardly occurs, The flow is smooth and the pressure loss at that part can be reduced.
[0013]
(Example 2)
Next, a second embodiment of the present invention will be described with reference to FIG. 3, FIG. 4, and FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
[0014]
In FIG. 3, reference numeral 100 denotes a lower body having a dust collection chamber 101 at the front and a motor chamber 102 incorporating the dust suction motor 1 at the rear. The dust collection chamber 101 and the motor chamber 102 communicate with each other. It is separated by a partition wall 105 provided in the lower main body 100 in which the hole 104 is formed. A dust collection chamber cover 106 is rotatably installed on the upper main body 107 so as to cover the dust collection chamber 101. The motor 1 is held by a rib A, a rib B, and a rib C provided on the upper main body 107 and the lower main body 100, respectively, by a front holding body 108 and a rear holding body 109 formed of a soft body. Before the motor 1 is held by the substantially funnel-shaped support plate 110 that forms an inclined surface that gradually narrows the passage area from the communication hole portion 104 that communicates the dust collection chamber 101 and the motor chamber 102 to the intake port 3 of the motor 1. It is arranged so as to be sandwiched between the holding bodies 108. 4 and 5, the support plate 110 is connected to an intake port guide 11 mounted on the inner surface of the intake port 3 of the casing 4 so as to draw substantially the same curved surface having a smooth cross-sectional shape. Even from the guide 11 to the inner surface (blade 6 side) of the front shroud 7 of the impeller 9, the meridian-shaped curved surface is formed to be a smooth substantially identical curved surface.
[0015]
With the above configuration, the intake air that has passed through the communication hole 104 of the partition wall 105 from the dust collection chamber 101 of the cleaner body is guided to the inclined surface of the support plate 110 and reaches the intake port 3 of the motor 1. To the impeller 9. Since the air current is joined with a smooth curved surface, turbulence is unlikely to occur, the air flow is smooth, and pressure loss at that portion is reduced.
[0016]
Example 3
Next, Embodiment 3 of the present invention will be described with reference to FIGS. The same components as those in the above embodiment are given the same reference numerals, and detailed description thereof is omitted. In FIG. 6, a substantially funnel-shaped support plate 110 that forms an inclined surface is disposed between the air inlet 3 of the motor 1 and the partition wall 105. Inside the dust collection chamber 101, a front support plate 111 that is connected with substantially the same curved surface is provided with a partition wall 105 from the support plate 110.
[0017]
With the above configuration, airflow that has passed through a dust collection paper bag (not shown) mounted in the dust collection chamber 101 of the lower main body 100 is attracted to the front support plate 111 installed in the dust collection chamber 101 of the cleaner body. Passing through the communication hole 104 of the partition wall 105, this time reaches the intake port 3 of the motor 1 along the inclined surface of the support plate 110 provided between the intake port 3 of the motor 1 and the partition wall 105. It passes through the mouth guide 11 and reaches the impeller 9. Since the air current is joined with a smooth curved surface, turbulence is unlikely to occur, the air flow is smooth, and pressure loss at that portion is reduced.
[0018]
7 is actually attached to the support plate 110, the motor 1 is inserted, the center of the support plate 110 and the motor 1 is aligned, and then the motor 1 is pressed forward. And fix. With this configuration, air tightness between the support plate 110 and the motor inlet 3 can be ensured, and the motor 1 is held at a position close to the shaft, so that vibration in the radial direction can be suppressed.
[0019]
Example 4
Next, Embodiment 4 of the present invention will be described with reference to FIG. The same components as those in the above embodiment are given the same reference numerals, and detailed description thereof is omitted. In FIG. 8, a substantially funnel-shaped inclined surface between the air inlet 3 of the motor 1 and the partition wall 105 is formed by the upper main body 107 and the lower main body 100, and the inclined surface inside the dust collecting chamber 101 is also a substantially funnel-shaped lower surface. Half is formed by the lower body 100 and the upper half is formed by the dust collection chamber lid 106.
[0020]
With the above configuration, in addition to the operation of the third embodiment, the inclined surfaces are formed by the upper and lower main bodies 107 and 100 and the dust collection chamber lid 106, so that the number of parts can be reduced and the assemblability can be improved.
[0021]
【The invention's effect】
According to the first aspect of the present invention, a smooth curved surface is formed between the air inlet of the casing and the inner surface of the front shroud of the impeller , and an inclination between the communication hole and the motor air inlet is formed. By forming the joint between the surface and the motor casing so as to be a smooth curved surface , the turbulent flow of intake air hardly occurs, the flow of air becomes smooth, the pressure loss at that part can be reduced, and the electric The output of the blower can be improved and the efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view of an electric blower for a vacuum cleaner according to Embodiment 1 of the present invention. FIG. 2 is an enlarged cross-sectional view of the main part of the electric blower. Sectional view [Fig. 4] Partially cutaway side view of the electric blower of the electric vacuum cleaner [Fig. 5] Enlarged sectional view of the main part of the electric blower [Fig. 6] Cross-sectional view of the electric vacuum cleaner according to Embodiment 3 of the present invention [Fig. 7] Partial sectional view of the electric vacuum cleaner [FIG. 8] FIG. 9 is a sectional view of the electric vacuum cleaner according to the fourth embodiment of the present invention. [FIG. 9] FIG. Cross section of the electric blower [Fig. 11] Cross section of the electric vacuum cleaner [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Motor 2 Bracket 3 Air inlet 4 Casing 6 Blade 7 Front shroud 9 Impeller 10 Air guide 11 Air inlet guide 100 Lower main body 101 Dust collection chamber 102 Motor chamber 103 Air inlet 104 Communication hole 105 Septum 106 Dust collecting chamber lid 107 Upper main body 108 Front holding body 109 Rear holding body 110 Support plate 111 Front support plate

Claims (1)

モータによって回転駆動されるインペラと、前記インペラより排出された気流を導くエアーガイドと、前記インペラと前記エアーガイドを内包するケーシングを備えた電動送風機と、後部に前記電動送風機を内蔵したモータ室を備え、前部に塵埃を集積する集塵袋を備えた集塵室を形成し、前記モータ室と前記集塵室とを吸気が連通する連通孔部を備えた隔壁を形成することで分割し、前記連通孔部の通路面積を前記電動送風機の吸気口より大きく設定し、前記連通孔部と前記電動送風機の吸気口との間に一定の空間を形成し、かつ前記空間に連通孔部から吸気口に通路面積を徐々に絞り込む傾斜面を形成し、前記傾斜面と前記インペラの前面シュラウドの内面の間を前記ケーシングにより滑らかな曲面で連なるように形成した電気掃除機。 An impeller that is rotationally driven by a motor; an air guide that guides an airflow discharged from the impeller; an electric blower that includes a casing that encloses the impeller and the air guide; and a motor chamber that includes the electric blower at a rear portion. A dust collection chamber having a dust collection bag for collecting dust is formed at the front, and the motor chamber and the dust collection chamber are divided by forming a partition wall having a communication hole portion through which intake air communicates. The passage area of the communication hole is set larger than the intake port of the electric blower, a fixed space is formed between the communication hole and the intake port of the electric blower, and the communication hole is formed in the space. The vacuum cleaner which formed the inclined surface which narrows a passage area gradually in an air inlet, and formed between the inclined surface and the inner surface of the front shroud of the impeller so that a smooth curved surface may be continued by the casing .
JP19964597A 1997-07-25 1997-07-25 Vacuum cleaner Expired - Fee Related JP3817849B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19964597A JP3817849B2 (en) 1997-07-25 1997-07-25 Vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19964597A JP3817849B2 (en) 1997-07-25 1997-07-25 Vacuum cleaner

Publications (2)

Publication Number Publication Date
JPH1142182A JPH1142182A (en) 1999-02-16
JP3817849B2 true JP3817849B2 (en) 2006-09-06

Family

ID=16411306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19964597A Expired - Fee Related JP3817849B2 (en) 1997-07-25 1997-07-25 Vacuum cleaner

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010029401A (en) * 2008-07-29 2010-02-12 Mitsubishi Electric Corp Vacuum cleaner
JP6155544B2 (en) 2012-03-12 2017-07-05 日本電産株式会社 Centrifugal fan
CN105240318B (en) * 2014-07-10 2018-09-04 莱克电气股份有限公司 Motor of dust collector
JP2018071551A (en) * 2017-12-27 2018-05-10 日本電産株式会社 Centrifugal fan

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