JPS637013Y2 - - Google Patents
Info
- Publication number
- JPS637013Y2 JPS637013Y2 JP10400482U JP10400482U JPS637013Y2 JP S637013 Y2 JPS637013 Y2 JP S637013Y2 JP 10400482 U JP10400482 U JP 10400482U JP 10400482 U JP10400482 U JP 10400482U JP S637013 Y2 JPS637013 Y2 JP S637013Y2
- Authority
- JP
- Japan
- Prior art keywords
- electric blower
- rotation speed
- air volume
- suction force
- voltage applied
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 1
Landscapes
- Electric Vacuum Cleaner (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は電気掃除機の吸込力制御装置に関する
ものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a suction force control device for a vacuum cleaner.
従来例の構成とその問題点
従来の電気掃除機の吸込力制御装置は、第１図
に示すように、電動送風機１の後部に覆い２を設
け、さらにその覆い２の一部に風量を検出する弁
３を設け、その弁３の開きを電気的に検知し、弁
３の開きに応じて吸込力を制御するものであつ
た。しかしこの方式では、電動送風機の後部全体
を包む覆い２と風量を検出する弁３が必要である
ため、制御装置が大型で重くなるという欠点と、
弁３の開きを電気的に検知するのが困難であるた
め高価になるという欠点を有していた。Configuration of conventional example and its problems As shown in Fig. 1, the conventional suction force control device for a vacuum cleaner has a cover 2 provided at the rear of an electric blower 1, and a part of the cover 2 that detects the air volume. The opening of the valve 3 was electrically detected, and the suction force was controlled in accordance with the opening of the valve 3. However, this method requires a cover 2 that covers the entire rear part of the electric blower and a valve 3 that detects the air volume, which has the disadvantage that the control device is large and heavy.
Since it is difficult to electrically detect the opening of the valve 3, it has the disadvantage of being expensive.
考案の目的
本考案は上記従来の欠点を解消するもので、小
型で軽量かつ安価な電気掃除機の吸込力制御装置
を提供することを目的とするものである。Purpose of the invention The present invention solves the above-mentioned conventional drawbacks, and aims to provide a suction force control device for a vacuum cleaner that is small, lightweight, and inexpensive.
考案の構成
本考案の掃除機の吸込力制御装置は電動送風機
の回転数を検出する回転数検出器と、電動送風機
への印加電圧を検出する検出回路および電動送風
機への印加電圧を制御する制御回路とを有し、電
動送風機の回転数の変化に応じて電動送風機への
印加電圧を変化させ、吸込力を制御するものであ
る。Structure of the invention The vacuum cleaner suction force control device of the invention includes a rotation speed detector that detects the rotation speed of an electric blower, a detection circuit that detects the voltage applied to the electric blower, and a control that controls the voltage applied to the electric blower. The suction force is controlled by changing the voltage applied to the electric blower according to changes in the rotation speed of the electric blower.
実施例の説明
以下本考案の一実施例について図面をもとに説
明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
第２図において、１１は電動送風機、１２は電
動送風機１１の回転軸に結合された、タコジエネ
レーター、フオトインタラプター、反射式フオト
センサー、ホール素子等による回転数検出器であ
り、電動送風機１１の回転数に応じた電気的な信
号が取り出される。第３図は、横軸Ｑを電動送風
機１１によつて発生する風量、縦軸Ｎをその回転
数とした電動送風機１１の風量特性図で、Ｖは電
動送風機１１への印加電圧である。印加電圧Ｖが
一定ならば、風量Ｑが大の時は回転数Ｎは小さ
く、風量Ｑをしぼつて行くと、回転数Ｎは上昇す
る。印加電圧Ｖを変化させると、風量Ｑと回転数
Ｎの関係を示す特性曲線が回転数Ｎの方向に平行
移動し、印加電圧Ｖが大の時、曲線は回転数Ｎが
大の方へ移動し、印加電圧Ｖが小の時は曲線は回
転数Ｎが小の方へ移動する。電動送風機１１は、
このような特性を有するため、回転数Ｎとその時
の印加電圧Ｖが知れれば、その時の風量Ｑを一義
的に求めることができる。例えば、第３図におい
て、回転数検出器１２によつて回転数Ｎがn0と知
れ、その時の印加電圧Ｖがv1であれば風量Ｑは
q1、印加電圧Ｖがv2であれば風量Ｑはq2、印加電
圧Ｖがv3であれば風量Ｑはq3と一義的に知ること
ができる。 In FIG. 2, 11 is an electric blower, and 12 is a rotation speed detector using a tachogenerator, a photo interrupter, a reflective photo sensor, a Hall element, etc., which is connected to the rotating shaft of the electric blower 11. An electrical signal corresponding to the rotation speed of 11 is extracted. FIG. 3 is an air volume characteristic diagram of the electric blower 11 in which the horizontal axis Q is the air volume generated by the electric blower 11, and the vertical axis N is the rotation speed thereof, where V is the voltage applied to the electric blower 11. If the applied voltage V is constant, when the air volume Q is large, the rotation speed N is small, and as the air volume Q is reduced, the rotation speed N increases. When the applied voltage V is changed, the characteristic curve showing the relationship between the air volume Q and the rotation speed N moves in parallel in the direction of the rotation speed N. When the applied voltage V is large, the curve moves toward the rotation speed N. However, when the applied voltage V is small, the curve moves toward the side where the rotational speed N is small. The electric blower 11 is
Since it has such characteristics, if the rotational speed N and the applied voltage V at that time are known, the air volume Q at that time can be uniquely determined. For example, in FIG. 3, if the rotation speed N is known to be n 0 by the rotation speed detector 12 and the applied voltage V at that time is v 1 , then the air volume Q is
q 1 , if the applied voltage V is v 2 , the air volume Q is q 2 , and if the applied voltage V is v 3 , the air volume Q can be uniquely known as q 3 .
第４図は上述の回転数検出器１２を使用した吸
込力制御装置の制御回路を示し、１３は演算増幅
器、Viは電動送風機１１への印加電圧、Vnは回
転数検出器の出力、Voutは演算増幅器１３の出
力で電動送風機１１への印加電圧を制御するもの
であり、１４，１５，１６はそれぞれ演算の際の
係数を決定する素子、１７は設定の風量に応じた
素子である。第５図は、第４図の制御回路による
制御の一例を示すもので、q0は設定風量、L1，
L2は電動送風機１１の負荷曲線、P1，P2，P3は
電動送風機１１の動作点である。 Fig. 4 shows a control circuit for a suction force control device using the above-mentioned rotation speed detector 12, 13 is an operational amplifier, Vi is a voltage applied to the electric blower 11, Vn is the output of the rotation speed detector, Vout is the output of the operational amplifier 13 which controls the voltage applied to the electric blower 11, 14, 15, 16 are elements which determine coefficients in the calculation, and 17 is an element which corresponds to the set air volume. Fig. 5 shows an example of control by the control circuit of Fig. 4, q0 is the set air volume, L1 ,
L 2 is the load curve of the electric blower 11 , and P 1 , P 2 , and P 3 are operating points of the electric blower 11 .
第４〜５図において、負荷L1に対して動作点
P1で電動送風機１１が運転しており、この時の
回転数はn1、回転数検出器の出力はVn1、印加電
圧はViであり風量がq0で安定している。電動送
風機１１の負荷がL1からL2に移ると動作点はP1
からP2へ、回転数はn1からn2へ、回転数検出器の
出力はVn1からVn2へとそれぞれ移動する。する
と、Voutが変化し、それに伴なつて電動送風機
１１への印加電圧もViからVi′へ変化する。従つ
て、動作点はP2からP3へ移り風量は再びq0とな
り、安定する。あとは、以上の動作をくり返すこ
とにより、電動送風機１１の風量を一定に保つこ
とができ、電気掃除機の定風量制御が可能とな
る。 In Figures 4 and 5, the operating point for load L 1 is
The electric blower 11 is operating at P1 , the rotation speed at this time is n1 , the output of the rotation speed detector is Vn1 , the applied voltage is Vi, and the air volume is stable at q0 . When the load of the electric blower 11 moves from L 1 to L 2 , the operating point is P 1
to P 2 , the rotation speed moves from n 1 to n 2 , and the output of the rotation speed detector moves from Vn 1 to Vn 2 . Then, Vout changes, and accordingly, the voltage applied to the electric blower 11 also changes from Vi to Vi'. Therefore, the operating point moves from P 2 to P 3 and the airflow becomes q 0 again, becoming stable. After that, by repeating the above operations, the air volume of the electric blower 11 can be kept constant, and constant air volume control of the vacuum cleaner becomes possible.
なお上記実施例においては、制御回路は演算増
幅器１３としたが、これはもちろん他のマイコン
などの制御素子でもかまわない。 In the above embodiment, the control circuit is the operational amplifier 13, but it may of course be a control element such as another microcomputer.
考案の効果
以上説明したように、本考案は電動送風機の回
転数の変化に応じて電動送風機への印加電圧を変
化させ吸込力を制御するものである。従つて、覆
いや弁等の機械的部材を用いる必要がなく、小
型、軽量でかつ安価であり、耐久性にも優れた電
気掃除機の吸込力制御装置を提供することができ
る。Effects of the Invention As explained above, the present invention controls the suction force by changing the voltage applied to the electric blower in accordance with changes in the rotational speed of the electric blower. Therefore, it is possible to provide a suction force control device for a vacuum cleaner that does not require the use of mechanical members such as a cover or a valve, and is small, lightweight, inexpensive, and has excellent durability.
第１図は従来の電気掃除機の吸込力制御装置の
吸込力検出器の縦断面図、第２図は本考案の一実
施例による電気掃除機の吸込力制御装置の回転数
検出器の正面図、第３図は同風量特性図、第４図
は同制御回路図、第５図は同制御動作説明図であ
る。
１１……電動送風機、１２……回転数検出器。
Fig. 1 is a vertical sectional view of a suction force detector of a conventional suction force control device for a vacuum cleaner, and Fig. 2 is a front view of a rotation speed detector of a suction force control device for a vacuum cleaner according to an embodiment of the present invention. FIG. 3 is an air volume characteristic diagram, FIG. 4 is a control circuit diagram, and FIG. 5 is an explanatory diagram of the control operation. 11... Electric blower, 12... Rotation speed detector.
Claims (1)
と、電動送風機への印加電圧を検出する検出回路
および電動送風機への印加電圧を制御する制御回
路とを有し、この制御回路は前記回転数検出器の
出力と前記検出回路の出力を入力し、電動送風機
の回転数の変化に応じて電動送風機への印加電圧
を変化させ、吸込力を制御する電気掃除機の吸込
力制御装置。 It has a rotation speed detector that detects the rotation speed of the electric blower, a detection circuit that detects a voltage applied to the electric blower, and a control circuit that controls the voltage applied to the electric blower, and this control circuit detects the rotation speed. A vacuum cleaner suction force control device that inputs the output of the electric blower and the output of the detection circuit, changes the voltage applied to the electric blower according to changes in the rotational speed of the electric blower, and controls the suction force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10400482U JPS597754U (en) | 1982-07-08 | 1982-07-08 | Vacuum cleaner suction force control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10400482U JPS597754U (en) | 1982-07-08 | 1982-07-08 | Vacuum cleaner suction force control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS597754U JPS597754U (en) | 1984-01-19 |
| JPS637013Y2 true JPS637013Y2 (en) | 1988-02-29 |
Family
ID=30244402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10400482U Granted JPS597754U (en) | 1982-07-08 | 1982-07-08 | Vacuum cleaner suction force control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597754U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646131U (en) * | 1979-09-18 | 1981-04-24 |
-
1982
- 1982-07-08 JP JP10400482U patent/JPS597754U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS597754U (en) | 1984-01-19 |
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