JPH0523273A - Vacuum cleaner - Google Patents
Vacuum cleanerInfo
- Publication number
- JPH0523273A JPH0523273A JP18488791A JP18488791A JPH0523273A JP H0523273 A JPH0523273 A JP H0523273A JP 18488791 A JP18488791 A JP 18488791A JP 18488791 A JP18488791 A JP 18488791A JP H0523273 A JPH0523273 A JP H0523273A
- Authority
- JP
- Japan
- Prior art keywords
- current
- current value
- electric blower
- electric
- vacuum cleaner
- 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
Landscapes
- Electric Vacuum Cleaner (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、電動送風機に流れる電
流値を制御する電気掃除機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for controlling the value of current flowing through an electric blower.
【0002】[0002]
【従来の技術】従来、電動送風機を内蔵した電気掃除機
は、吸込仕事率を向上させるため、電動送風機がより大
きな電力を入力できるように設計されている。2. Description of the Related Art Conventionally, electric vacuum cleaners having a built-in electric blower are designed so that the electric blower can input a larger amount of electric power in order to improve the suction work rate.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、図4に
示すように、吸込風量が増加して電流値Aが所定値以上
になると、電流値Aを増加させても吸込仕事率Bは向上
せずかえって低下し、エネルギーの損失になる問題を有
している。However, as shown in FIG. 4, when the intake air amount increases and the current value A exceeds a predetermined value, the suction power B does not improve even if the current value A is increased. On the contrary, it has a problem that it decreases and energy is lost.
【0004】本発明は、上記問題点に鑑みなされたもの
で、吸込仕事率を低下させることなく、省エネルギー化
を図った電気掃除機を提供することを目的とする。The present invention has been made in view of the above problems, and it is an object of the present invention to provide an electric vacuum cleaner that saves energy without lowering the suction work rate.
【0005】[0005]
【課題を解決するための手段】本発明の電気掃除機は、
電気掃除機本体内に設けられた電動送風機と、この電動
送風機に流れる電流を最大吸込仕事率の際の電流値以下
に制限する電流制限手段と、前記電動送風機に流れる電
流を検出し前記電動送風機に流れる電流値が最大吸込仕
事率の際の電流値以上のとき前記電流制限手段に電流値
を最大吸込仕事率の際の電流値以下にさせる電流値検出
手段とを具備したものである。The electric vacuum cleaner of the present invention comprises:
An electric blower provided in the main body of the electric vacuum cleaner, a current limiting means for limiting a current flowing through the electric blower to a current value at the time of maximum suction power, and the electric blower detecting a current flowing through the electric blower. When the value of the current flowing in the current is greater than or equal to the current value at the time of maximum suction power, the current limiting means is provided with current value detection means for making the current value equal to or less than the current value at the time of maximum suction power.
【0006】[0006]
【作用】本発明は、電動送風機に流れる電流を検出し、
電動送風機に流れる電流値が最大吸込仕事率の際の電流
値以上のときに、電流値検出手段で電流制限手段に電流
値を最大吸込仕事率の際の電流値以下にさせるので、最
大吸込率を保持しつつ、省エネルギーを図る。The present invention detects the electric current flowing through the electric blower,
When the current value flowing in the electric blower is equal to or higher than the current value at the maximum suction work rate, the current value detecting means causes the current limiting means to make the current value less than or equal to the current value at the maximum suction work rate. Energy conservation while maintaining.
【0007】[0007]
【実施例】以下、本発明の電気掃除機の一実施例を図面
を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electric vacuum cleaner of the present invention will be described below with reference to the drawings.
【0008】図2において、1は電気掃除機本体で、こ
の電気掃除機本体1には、ホース2の基端が着脱自在に
接続され、このホース2の先端には後方に向けて分岐さ
れた形状の手許操作部3が設けられている。また、この
手許操作部3の先端には、伸縮自在の延長管4を介して
吸込口体5が取り付けられている。さらに、電気掃除機
本体1内には、図1に示す電動送風機7が内蔵されてい
る。In FIG. 2, reference numeral 1 denotes an electric vacuum cleaner body. A base end of a hose 2 is detachably connected to the electric vacuum cleaner main body 1, and a tip end of the hose 2 is branched rearward. A hand operation unit 3 having a shape is provided. A suction port body 5 is attached to the tip of the hand operation section 3 via an extendable extension tube 4. Further, the electric blower main body 1 has a built-in electric blower 7 shown in FIG.
【0009】そして、この電気掃除機は、図1に示すよ
うに、商用交流電源Eに電源スイッチSW、電動送風機7
に流れる電流を最大吸込仕事率の際の電流値以下に制限
する電流制限手段としての電流制限回路8、および、電
動送風機7に流れる電流を検出し電動送風機7に流れる
電流値が最大吸込仕事率の際の電流値以上のとき電流制
限回路8に制御信号により電流値を最大吸込仕事率の際
の電流値以下にさせる電流値検出手段として電流値検出
回路9が直列に接続されている。As shown in FIG. 1, the electric vacuum cleaner includes a commercial AC power source E, a power switch SW, and an electric blower 7
Current limiting circuit 8 as a current limiting means for limiting the current flowing in the fan to a value equal to or less than the current value at the time of the maximum suction power, and the current flowing in the electric blower 7 by detecting the current flowing in the electric blower 7. A current value detection circuit 9 is connected in series to the current limiting circuit 8 as a current value detection means for making the current value less than or equal to the current value at the time of the maximum suction work rate by the control signal when the current value is equal to or more than the current value at the time.
【0010】次に、上記実施例の動作について説明す
る。Next, the operation of the above embodiment will be described.
【0011】まず、電源スイッチSWを閉成すると、電動
送風機7が回転駆動する。電動送風機7に電流が流れる
と電流値検出回路9で電動送風機7に流れる電流を検出
する。First, when the power switch SW is closed, the electric blower 7 is rotationally driven. When a current flows through the electric blower 7, the current value detection circuit 9 detects the current flowing through the electric blower 7.
【0012】そして、電流制限回路8の動作が解除され
ているときは、図3に示すように、電流値Aが実線から
2点鎖線の直線のように変化すると、吸込仕事率Bも実
線から2点鎖線の曲線になる。When the current limiting circuit 8 is deactivated, as shown in FIG. 3, when the current value A changes from a solid line to a two-dot chain line, the suction power B also changes from the solid line. It becomes a two-dot chain curve.
【0013】また、電流制限回路8が動作しているとき
は、電流値検出回路9が吸込風量が最大吸込仕事率を越
えた電流値以上の電流を検出すると、図3の実線に示す
ように、電流制限回路8で電流値を最大吸込仕事率に対
応させた電流値に制限し、電流値を所定値以上には上昇
させない。このように、電流値を制限しても、吸込風量
に対する吸込仕事率Bはほとんど低下しない。When the current limiting circuit 8 is operating and the current value detecting circuit 9 detects a current value equal to or higher than the current value at which the suction air volume exceeds the maximum suction work rate, as shown by the solid line in FIG. The current limiting circuit 8 limits the current value to a current value corresponding to the maximum suction work rate, and does not increase the current value beyond a predetermined value. In this way, even if the current value is limited, the suction power B with respect to the amount of suction air hardly decreases.
【0014】さらに、略同等の吸込仕事率で、電流値を
低下させることができるため、消費電力が低下して不要
な発熱が低下するので、耐熱性が低い部品も使用でき安
価になる。Further, since the current value can be reduced with substantially the same suction work rate, the power consumption is reduced and unnecessary heat generation is reduced. Therefore, it is possible to use parts having low heat resistance and to reduce the cost.
【0015】[0015]
【発明の効果】本発明の電気掃除機によれば、電動送風
機に流れる電流を検出し、電動送風機に流れる電流値が
最大吸込仕事率の際の電流値以上のときに、電流値検出
手段で電流制限手段に電流値を最大吸込仕事率の際の電
流値以下にさせるので、最大吸込率を保持しつつ、省エ
ネルギーを図ることができる。According to the electric vacuum cleaner of the present invention, the electric current flowing through the electric blower is detected, and when the electric current flowing through the electric blower is equal to or more than the electric current at the maximum suction power, the electric current detecting means detects the electric current. Since the current limiter causes the current value to be equal to or less than the current value at the time of maximum suction work rate, it is possible to save energy while maintaining the maximum suction rate.
【図1】本発明の電気掃除機の一実施例を示すブロック
図である。FIG. 1 is a block diagram showing an embodiment of an electric vacuum cleaner of the present invention.
【図2】同上電気掃除機の外観を示す斜視図である。FIG. 2 is a perspective view showing an appearance of the same electric vacuum cleaner.
【図3】同上吸込仕事率および電流と吸込風量との関係
を示すグラフである。FIG. 3 is a graph showing the relationship between suction power and current and suction air volume.
【図4】従来例の吸込仕事率および電流と吸込風量との
関係を示すグラフである。FIG. 4 is a graph showing a relationship between a suction work rate and a current and a suction air volume in a conventional example.
7 電動送風機 8 電流制限手段としての電流制限回路 9 電流値検出手段としての電流値検出回路 7 Electric blower 8 Current limiting circuit as current limiting means 9 Current value detecting circuit as current value detecting means
Claims (1)
機と、 この電動送風機に流れる電流を最大吸込仕事率の際の電
流値以下に制限する電流制限手段と、 前記電動送風機に流れる電流を検出し前記電動送風機に
流れる電流値が最大吸込仕事率の際の電流値以上のとき
前記電流制限手段に電流値を最大吸込仕事率の際の電流
値以下にさせる電流値検出手段とを具備したことを特徴
とする電気掃除機。Claim: What is claimed is: 1. An electric blower provided in an electric vacuum cleaner body, and a current limiting means for limiting a current flowing through the electric blower to a current value at a maximum suction power or less, A current value that detects the current flowing through the electric blower and causes the current limiting means to make the current value less than or equal to the current value at the time of maximum suction power when the value of the current flowing through the electric blower is greater than or equal to the current value at the time of maximum suction power. An electric vacuum cleaner comprising: a detection unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18488791A JP3178681B2 (en) | 1991-07-24 | 1991-07-24 | Electric vacuum cleaner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18488791A JP3178681B2 (en) | 1991-07-24 | 1991-07-24 | Electric vacuum cleaner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0523273A true JPH0523273A (en) | 1993-02-02 |
JP3178681B2 JP3178681B2 (en) | 2001-06-25 |
Family
ID=16161055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18488791A Expired - Fee Related JP3178681B2 (en) | 1991-07-24 | 1991-07-24 | Electric vacuum cleaner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3178681B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2433194A (en) * | 2005-12-16 | 2007-06-20 | Matsushita Electric Ind Co Ltd | Over current suppression in vacuum cleaner |
EP2377445A2 (en) | 2010-04-16 | 2011-10-19 | Miele & Cie. KG | Vacuum cleaner with fan regulation device |
JP2021020011A (en) * | 2019-07-30 | 2021-02-18 | 東芝ライフスタイル株式会社 | Vacuum cleaner |
CN114376444A (en) * | 2020-10-02 | 2022-04-22 | 东芝生活电器株式会社 | Suction port body and electric dust collector |
-
1991
- 1991-07-24 JP JP18488791A patent/JP3178681B2/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2433194A (en) * | 2005-12-16 | 2007-06-20 | Matsushita Electric Ind Co Ltd | Over current suppression in vacuum cleaner |
US7698777B2 (en) | 2005-12-16 | 2010-04-20 | Panasonic Corporation | Vacuum cleaner |
EP2377445A2 (en) | 2010-04-16 | 2011-10-19 | Miele & Cie. KG | Vacuum cleaner with fan regulation device |
EP2377444A1 (en) * | 2010-04-16 | 2011-10-19 | Miele & Cie. KG | Vacuum cleaner with fan regulation device |
US8607402B2 (en) | 2010-04-16 | 2013-12-17 | Miele & Cie. Kg | Vacuum cleaner with a vacuum cleaner fan |
EP2377445A3 (en) * | 2010-04-16 | 2015-06-03 | Miele & Cie. KG | Vacuum cleaner with fan regulation device |
JP2021020011A (en) * | 2019-07-30 | 2021-02-18 | 東芝ライフスタイル株式会社 | Vacuum cleaner |
CN114376444A (en) * | 2020-10-02 | 2022-04-22 | 东芝生活电器株式会社 | Suction port body and electric dust collector |
Also Published As
Publication number | Publication date |
---|---|
JP3178681B2 (en) | 2001-06-25 |
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