JPH02152428A - Vacuum cleaner - Google Patents
Vacuum cleanerInfo
- Publication number
- JPH02152428A JPH02152428A JP30565388A JP30565388A JPH02152428A JP H02152428 A JPH02152428 A JP H02152428A JP 30565388 A JP30565388 A JP 30565388A JP 30565388 A JP30565388 A JP 30565388A JP H02152428 A JPH02152428 A JP H02152428A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- electric blower
- input power
- time
- motor fan
- 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
- 239000000428 dust Substances 0.000 claims abstract description 58
- 239000003990 capacitor Substances 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Electric Vacuum Cleaner (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電気掃除機本体への吸引経路中の塵埃の通過を
塵埃センサで検出して、塵埃センサの出力で電動送風機
への入力電力を制御する電気掃除機に関するものである
。[Detailed Description of the Invention] Industrial Application Field The present invention detects the passage of dust in the suction path to the vacuum cleaner body using a dust sensor, and controls the input power to the electric blower using the output of the dust sensor. It concerns vacuum cleaners.
従来の技術
この種の電気掃除機は、第３図に示すように電動送風機
１を内蔵した電気掃除機本体２にホース３と延長管４を
介して床用吸込具５を取り付けて構成されている。床用
吸込具５にはモータ６で駆動されるアジテータ７が内蔵
されており、アジテータ７が被掃除面８の塵埃を掻き出
すように構成されている。電動送風機１とモータ６の電
源回路は、従来では第４図に示すように構成されている
。2. Description of the Related Art As shown in FIG. 3, this type of vacuum cleaner is constructed by attaching a floor suction device 5 to a vacuum cleaner main body 2 having a built-in electric blower 1 via a hose 3 and an extension pipe 4. There is. The floor suction tool 5 includes an agitator 7 driven by a motor 6, and the agitator 7 is configured to scrape out dust from the surface 8 to be cleaned. Conventionally, the power supply circuit for the electric blower 1 and the motor 6 is configured as shown in FIG.
電動送風ｊＡ１と商用電源９の回路に双方向性サイリス
タＩＯが直列に介装されており、双方向性サイリスクＩ
Ｏはホース３の先端の手元ハンドル部１１に設けられた
可変抵抗器１２の操作で位相制御部１３を介して導通角
が制御される。ここでは可変抵抗器１２の抵抗値が小さ
くなるほど電動送風機１への入力電力が上昇するように
位相制御部１３が構成されている。手元ハンドル部ＩＩ
または延長管４には、内部を通過する塵埃を検出するよ
うに吸引経路を挟んで赤外発光ダイオード１４とフォト
トランジスタ１５を対向して配置した塵埃センサ１６が
設けられており、この塵埃センサ１６が塵埃の通過を検
出すると、反転増幅器１７．１８を介してリレー１９が
励磁され、前記の可変抵抗器１２の両端がａ接点２０で
短絡され、そのときの可変抵抗器１２の抵抗値にかかわ
らず電動送風機１への入力電力が最大となる。A bidirectional thyristor IO is inserted in series in the circuit of the electric blower jA1 and the commercial power supply 9, and the bidirectional thyristor I
The conduction angle of O is controlled via a phase control section 13 by operating a variable resistor 12 provided on a hand handle section 11 at the tip of the hose 3. Here, the phase control section 13 is configured such that the input power to the electric blower 1 increases as the resistance value of the variable resistor 12 decreases. Hand handle part II
Alternatively, the extension tube 4 is provided with a dust sensor 16 in which an infrared light emitting diode 14 and a phototransistor 15 are arranged facing each other across a suction path to detect dust passing through the inside. When detecting the passage of dust, the relay 19 is energized via the inverting amplifiers 17 and 18, and both ends of the variable resistor 12 are shorted at the a contact 20, regardless of the resistance value of the variable resistor 12 at that time. First, the input power to the electric blower 1 becomes maximum.
具体的には、塵埃が通過するとフォトトランジスタ１５
のコレクタ電位が上昇し、反転増幅器１７の出力が“Ｌ
”レベルに変化する。２１は直流カット用コンデンサで
、フォトトランジスタ１５のコレクタ電位の変化分だけ
を反転増幅器Ｉ７に入力している。Specifically, when dust passes through, the phototransistor 15
collector potential rises, and the output of the inverting amplifier 17 becomes “L”.
21 is a DC cut capacitor, which inputs only the change in the collector potential of the phototransistor 15 to the inverting amplifier I7.
反転増幅器１７の出力が“Ｌ １１レベルに変化すると
、コンデンサ２２のチャージ電荷がダイオード２３を通
して放電される。このとき反転増幅器！８の反転入力端
子（−）の電位が非反転入力端子（＋）よりも低くなる
ため、反転増幅器Ｉ８の出力が“Ｈ”レベルに反転し、
トランジスタ２４が“オン”してリレー！９が励磁され
て電動送風機１への入力電力が最大となる。塵埃が無く
なると、コンデンサ２２は再び抵抗２５を通して充電さ
れて、反転増幅器１８の反転入力端子（−）の電位が非
反転入力端子（＋）よりも高くなると、反転増幅器１８
の出力が“Ｌ ＩＩレベルに復帰し、トランジスタ２４
が“オフ”してリレー１９が消磁され、電動送風機１へ
の入力電力が、そのときの可変抵抗器１２の抵抗値によ
って決まる電力まで下がる。２６は塵埃センサ１８およ
び反転増幅器１７．１８などのための電源部、２７は手
元ハンドル部ＩＩに設けられた床用吸込具スイッチであ
る。When the output of the inverting amplifier 17 changes to the "L11" level, the charge in the capacitor 22 is discharged through the diode 23. At this time, the potential of the inverting input terminal (-) of the inverting amplifier !8 changes to the non-inverting input terminal (+). Since the output of the inverting amplifier I8 is inverted to "H" level,
Transistor 24 turns on and relays! 9 is excited, and the input power to the electric blower 1 becomes maximum. When the dust disappears, the capacitor 22 is charged again through the resistor 25, and when the potential of the inverting input terminal (-) of the inverting amplifier 18 becomes higher than the non-inverting input terminal (+), the inverting amplifier 18
The output of transistor 24 returns to the “L II level” and
is turned off, the relay 19 is demagnetized, and the input power to the electric blower 1 is reduced to the power determined by the resistance value of the variable resistor 12 at that time. 26 is a power supply section for the dust sensor 18 and inverting amplifiers 17 and 18, and 27 is a floor suction device switch provided on the hand handle section II.
発明が解決しようとする課題
このような従来の構成では、塵埃を検出して電動送風機
１への入力電力が最大になっている時間は、塵埃の量に
かかわらず常に一定である。そのため、少量の塵埃を吸
引した場合であっても、必要以上の期間にわたって電動
送風機１への入力電力が最大になってしまい、使用性が
悪く、パワーロスも多いという問題がある。Problems to be Solved by the Invention In such a conventional configuration, the time during which dust is detected and the input power to the electric blower 1 is at its maximum is always constant regardless of the amount of dust. Therefore, even when a small amount of dust is sucked, the input power to the electric blower 1 is maximized for a longer period than necessary, resulting in poor usability and a problem of high power loss.
本発明は電動送風機への入力電力を最大に保つ時間を、
自動的に可変できる電気掃除機を提供することを目的と
する。The present invention is designed to maintain the maximum input power to the electric blower by
The purpose of the present invention is to provide a vacuum cleaner that can be automatically varied.
課題を解決するための手段
本発明の電気掃除機は、電動送風機を内蔵した電気掃除
機本体へ塵埃を集塵し、吸引経路中の塵埃の通過を塵埃
センサで検出して、塵埃センサが塵埃を検出したときに
前記電動送風機への入力電力を上げるように構成すると
ともに、塵埃センサで検出された塵埃の量に応じて、検
出した塵埃が多いほど前記電動送風機への入力電力を上
げる期間を長くする電動送風機制御部を設けたことを特
徴とする。Means for Solving the Problems The vacuum cleaner of the present invention collects dust into the vacuum cleaner main body having a built-in electric blower, uses a dust sensor to detect the passage of dust in the suction path, and detects the dust. The electric blower is configured to increase the input power to the electric blower when the dust sensor detects the dust sensor, and the electric blower is configured to increase the input power to the electric blower according to the amount of dust detected by the dust sensor. It is characterized by the provision of an electric blower control section that increases the length.
作用
この構成によると、電動送風機制御部は、塵埃センサで
検出された塵埃の量が少なければ電動送風機への入力電
力を上げる期間を第１の規定時間とし、塵埃センサで検
出された塵埃の量が多ければ電動送風機への入力電力を
上げる期間を第１の規定時間よりも長い第２の規定時間
にする。According to this configuration, the electric blower control section sets a period during which input power to the electric blower is increased when the amount of dust detected by the dust sensor is small as the first specified time, and increases the amount of dust detected by the dust sensor. If the number is large, the period for increasing the input power to the electric blower is set to a second specified time period that is longer than the first specified time period.
実施例
以下、本発明の実施例を第１図と第２図に基づいて説明
する。なお、従来例を示す第３図、第４図と同様の作用
をなすものには、同一の符号を付けて説明する。Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 and 2. Components having the same functions as those shown in FIGS. 3 and 4 showing the conventional example will be described with the same reference numerals.
第１図は本発明の電気掃除機を示す。電動送風機１への
入力電力を制御する位相制御部１３と塵埃センサ１６の
間には下記に示すような電動送風機制御部２８が介装さ
れている。反転増幅器Ｉ７の出力は単安定マルチバイブ
レータ２９のクロック端子ＣＬＯＣＫに接続されている
。単安定マルチバイブレータ２９の時定数は次のように
して決定されている。単安定マルチバイブレータ２９の
時定数端子には一つのコンデンサ３０と第１．第２の抵
抗器３１．３２が接続されている。第１．第２の抵抗器
３１．３２には直列にそれぞれトランジスタ３３．３４
のエミッターコレクタ間が介装されており、このトラン
ジスタ３３゜３４によって第１．第２の抵抗器３１．３
２のうち、時定数の決定に使用する一方の抵抗器を選択
する。FIG. 1 shows a vacuum cleaner according to the invention. An electric blower control section 28 as shown below is interposed between the phase control section 13 that controls the input power to the electric blower 1 and the dust sensor 16. The output of the inverting amplifier I7 is connected to the clock terminal CLOCK of the monostable multivibrator 29. The time constant of the monostable multivibrator 29 is determined as follows. One capacitor 30 and a first capacitor 30 are connected to the time constant terminal of the monostable multivibrator 29. A second resistor 31.32 is connected. 1st. Transistors 33, 34 are connected in series to the second resistors 31, 32, respectively.
The emitter and collector of the transistors 33 and 34 are interposed between the emitter and the collector of the first transistor. Second resistor 31.3
Select one of the two resistors to be used for determining the time constant.
トランジスタ３３のベースは定電圧ダイオード３５を介
して反転増幅器１７の出力に接続され、トランジスタ３
４のベースは逆流防止ダイオード３６を介して反転増幅
器１７の出力に接続されている。ここでは第２の抵抗器
３２の抵抗値は第１の抵抗器３１の抵抗値よりも大きい
。トランジスタ３４のエミッタには定電圧ダイオード３
７が介装されている。単安定マルチバイブレータ２９の
出力端子ＯＵＴは、リレー１９のスイッチング用トラン
ジスタ２４のベースに接続されている。The base of the transistor 33 is connected to the output of the inverting amplifier 17 via the constant voltage diode 35, and the base of the transistor 33 is
The base of 4 is connected to the output of the inverting amplifier 17 via a backflow prevention diode 36. Here, the resistance value of the second resistor 32 is greater than the resistance value of the first resistor 31. A constant voltage diode 3 is connected to the emitter of the transistor 34.
7 is interposed. The output terminal OUT of the monostable multivibrator 29 is connected to the base of the switching transistor 24 of the relay 19.
このように構成したため、塵埃センサｌＢが塵埃を検出
しない状態では、反転増幅器１７の出力が“６ＨＩＩレ
ベルにあってトランジスタ３３が常に“オン”している
。この状態では単安定マルチバイブレータ２９にクロッ
クが与えられないため、単安定マルチバイブレータ２９
はトリガされない。したがってトランジスタ２４が“オ
フ”状態を維持し、電動送風機１への入力電力はそのと
きの可変抵抗器１２の抵抗値によって決まる。With this configuration, when the dust sensor IB does not detect dust, the output of the inverting amplifier 17 is at the "6HII level" and the transistor 33 is always "on". In this state, the monostable multivibrator 29 is clocked. is not given, the monostable multivibrator29
is not triggered. Therefore, the transistor 24 remains in the "off" state, and the input power to the electric blower 1 is determined by the resistance value of the variable resistor 12 at that time.
塵埃センサ１６が塵埃を検出し、その塵埃が少ない場合
には、第２図（ａ）の区間Ｂ１に示すように反転増幅器
１７の出力が僅か低下する。このように反転増幅器１７
の出力が僅かに低下すると、単安定マルチバイブレータ
２９はこれをクロックとして検出する。また、このよう
に反転増幅器１７の出力が僅かに低下した状態では、ト
ランジスタ３４が“オフ” トランジスタ３３が６“
オン”しており、単安定マルチバイブレータ２９の時定
数が、第１の抵抗器３１とコンデンサ３０とで決まる第
１の規定時間ｔ１となって、単安定マルチバイブレータ
２９の出力端子ＯＵＴは第２図（ｂ）に示すように時刻
Ｔ。When the dust sensor 16 detects dust and there is little dust, the output of the inverting amplifier 17 decreases slightly as shown in section B1 of FIG. 2(a). In this way, the inverting amplifier 17
When the output of the monostable multivibrator 29 decreases slightly, the monostable multivibrator 29 detects this as a clock. In addition, in this state where the output of the inverting amplifier 17 is slightly reduced, the transistor 34 is "off" and the transistor 33 is "6"
"on", the time constant of the monostable multivibrator 29 becomes the first specified time t1 determined by the first resistor 31 and the capacitor 30, and the output terminal OUT of the monostable multivibrator 29 becomes the second At time T as shown in Figure (b).
〜Ｔ１にわたって“Ｈ”に反転する。これによって時刻
Ｔｏ−ＴＩにわたってトランジスタ２４を介してリレー
１９が励磁され、可変抵抗器１２の両端がａ接点２０で
短絡され、可変抵抗器１２の抵抗値にかかわらず電動送
風機１への入力電力が時刻ＴＯ〜Ｔ１にわたって最大と
なる。It is inverted to "H" for ~T1. As a result, the relay 19 is energized via the transistor 24 over time To-TI, and both ends of the variable resistor 12 are short-circuited at the A contact 20, so that the input power to the electric blower 1 is reduced regardless of the resistance value of the variable resistor 12. It is maximum from time TO to T1.
塵埃センサ１６の検出した塵埃が多い場合には、第２図
（ａ）の区間Ｂ２に示すように反転増幅器１７の出力が
大きく低下する。このように反転増幅器Ｉ７の出力が大
きく低下すると、トランジスタ３３は“オフ” トラ
ンジスタ３４は定電圧ダイオード３７が導通して“オン
パする。これによって、反転増幅器１７の出力が低下し
たことをクロックとして検出した単安定マルチバイブレ
ータ２３は、第２の抵抗器３２とコンデンサ３０とで決
まる第２の規定時間ｔ２の時刻Ｔ２〜Ｔ３にわたって出
力端子ＯＵＴが“ＨＩｆに反転する。これによって時刻
Ｔ２〜Ｔ３にわたってトランジスタ２４を介してリレー
１９が励磁され、可変抵抗器１２の両端がａ接点２０で
短絡され、可変抵抗器１２の抵抗値にかかわらず電動送
風機１への入力電力が時刻Ｔ２〜Ｔ３にわたって最大と
なる。When the amount of dust detected by the dust sensor 16 is large, the output of the inverting amplifier 17 decreases significantly, as shown in section B2 of FIG. 2(a). When the output of the inverting amplifier I7 greatly decreases in this way, the transistor 33 turns "off" and the transistor 34 becomes "on" as the constant voltage diode 37 becomes conductive.Thereby, the decrease in the output of the inverting amplifier 17 is detected as a clock. In the monostable multivibrator 23, the output terminal OUT is inverted to "HIf" over time T2 to T3 of the second specified time t2 determined by the second resistor 32 and the capacitor 30. As a result, the relay 19 is energized via the transistor 24 from time T2 to T3, and both ends of the variable resistor 12 are short-circuited at the A contact 20, and the input power to the electric blower 1 is reduced regardless of the resistance value of the variable resistor 12. The maximum value is reached from time T2 to time T3.
このように塵埃センサ１６の検出した塵埃が少ない場合
には、電動送風機１への入力電力が時刻ＴＯ〜Ｔ１の短
い第１の規定時間の間だけ、自動的に最大電力に切り替
えて運転され、パワーロスが少ない。In this way, when the amount of dust detected by the dust sensor 16 is small, the input power to the electric blower 1 is automatically switched to the maximum power and operated only for a short first specified time from time TO to T1, Less power loss.
塵埃センサＩ６の検出した塵埃が多い場合には、電動送
風機１への入力電力が時刻Ｔ２〜Ｔ３にわたる前記第１
の規定時間よりも長い第２の規定時間にわたって、自動
的に最大電力に切り替えて運転され、操作性も良好であ
る。When there is a large amount of dust detected by the dust sensor I6, the input power to the electric blower 1 is reduced to the first level from time T2 to T3.
The power is automatically switched to the maximum power for the second specified time, which is longer than the specified time, and the operability is also good.
発明の効果
以上のように本発明によれば、塵埃センサが塵埃を検出
したときに電動送風機への入力電力を上げるように構成
するとともに、塵埃センサの検出した塵埃の多少に応じ
て塵埃が多いほど前記電動送風機への入力電力を上げる
期間を長くする電動送風機制御部を設けたため、自動的
に最大電力に切り替えて運転される期間の長さは、塵埃
が少ない場合には塵埃が多い場合よりも短くなり、パワ
ーロスが少ない。Effects of the Invention As described above, according to the present invention, the power input to the electric blower is increased when the dust sensor detects dust, and the amount of dust is increased depending on the amount of dust detected by the dust sensor. Since we have installed an electric blower control unit that increases the period during which the input power to the electric blower is increased, the period during which the electric blower is automatically switched to the maximum power and is operated will be longer when there is less dust than when there is a lot of dust. is also shorter, and there is less power loss.
塵埃が多い場合には最大電力に切り替えて運転される期
間の長さが自動的に長くなり、強い吸い込み力を長い時
間にわたって継続するので操作性も良好である。When there is a lot of dust, the operation period is automatically increased by switching to the maximum power, and the strong suction force is continued for a long time, resulting in good operability.
第１図は本発明の電気掃除機の一実施例の電気回路の構
成図、第２図は同電気回路の要部波形図、第３図は電気
掃除機の外観斜視図、第４図は従来の電気掃除機の電気
回路の構成図である。
１・・・電動送風機、２・・・電気掃除機本体、ｌＯ・
・・双方向性サイリスタ、１２・・・可変抵抗器、１３
・・・位相制御部、１６・・・塵埃センサ、１７・・・
反転増幅器、１９・・・リレー、２０・・・ａ接点、２
８・・・電動送風機制御部、２９・・・単安定マルチバ
イブレータ、３０・・・コンデンサ、３１゜・・・第１
゜
第２の抵抗器、
３３．３４
・・・トランジス
タ。Fig. 1 is a configuration diagram of an electric circuit of an embodiment of the vacuum cleaner of the present invention, Fig. 2 is a waveform diagram of the main parts of the electric circuit, Fig. 3 is an external perspective view of the vacuum cleaner, and Fig. 4 is a diagram. It is a block diagram of the electric circuit of the conventional vacuum cleaner. 1... Electric blower, 2... Vacuum cleaner body, lO・
・Bidirectional thyristor, 12 ・Variable resistor, 13
...Phase control unit, 16...Dust sensor, 17...
Inverting amplifier, 19... Relay, 20... A contact, 2
8... Electric blower control unit, 29... Monostable multivibrator, 30... Capacitor, 31°... First
゜Second resistor, 33.34...transistor.
Claims (1)
し、吸引経路中の塵埃の通過を塵埃センサで検出して、
塵埃センサが塵埃を検出したときに前記電動送風機への
入力電力を上げるように構成するとともに、塵埃センサ
で検出された塵埃の量に応じて、検出した塵埃が多いほ
ど前記電動送風機への入力電力を上げる期間を長くする
電動送風機制御部を設けた電気掃除機。1. Dust is collected into the vacuum cleaner body with a built-in electric blower, and a dust sensor detects the passage of dust in the suction path.
The configuration is configured to increase the input power to the electric blower when the dust sensor detects dust, and according to the amount of dust detected by the dust sensor, the more dust detected, the more the input power to the electric blower increases. A vacuum cleaner equipped with an electric blower control unit that increases the period of time the air blows up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63305653A JPH0822267B2 (en) | 1988-12-01 | 1988-12-01 | Electric vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63305653A JPH0822267B2 (en) | 1988-12-01 | 1988-12-01 | Electric vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02152428A true JPH02152428A (en) | 1990-06-12 |
| JPH0822267B2 JPH0822267B2 (en) | 1996-03-06 |
Family
ID=17947726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63305653A Expired - Lifetime JPH0822267B2 (en) | 1988-12-01 | 1988-12-01 | Electric vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0822267B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61141338A (en) * | 1984-12-14 | 1986-06-28 | 株式会社日立製作所 | Electric cleaner |
| JPS6286155U (en) * | 1985-11-20 | 1987-06-02 |
-
1988
- 1988-12-01 JP JP63305653A patent/JPH0822267B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61141338A (en) * | 1984-12-14 | 1986-06-28 | 株式会社日立製作所 | Electric cleaner |
| JPS6286155U (en) * | 1985-11-20 | 1987-06-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0822267B2 (en) | 1996-03-06 |
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