JP2001008871A - Vacuum cleaner - Google Patents

Vacuum cleaner

Info

Publication number
JP2001008871A
JP2001008871A JP11184937A JP18493799A JP2001008871A JP 2001008871 A JP2001008871 A JP 2001008871A JP 11184937 A JP11184937 A JP 11184937A JP 18493799 A JP18493799 A JP 18493799A JP 2001008871 A JP2001008871 A JP 2001008871A
Authority
JP
Japan
Prior art keywords
dust
motor
detecting
detection
electric power
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.)
Withdrawn
Application number
JP11184937A
Other languages
Japanese (ja)
Inventor
正樹 ▲高▼橋
Masaki Takahashi
Hiroyuki Senoo
裕之 妹尾
Tadashi Matsushiro
忠 松代
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 Holdings Corp
Original Assignee
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.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11184937A priority Critical patent/JP2001008871A/en
Publication of JP2001008871A publication Critical patent/JP2001008871A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Electric Vacuum Cleaner (AREA)

Abstract

PROBLEM TO BE SOLVED: To comfortably perform cleaning, to prevent heating of a motor while reducing labor, and to secure durability of a brush of the motor by detecting a refuse quantity and an air quantity passing through a dust/dirt passing passage, and controlling motor supply electric power according to these values. SOLUTION: First of all, when a user supplies electric power to a motor 2 by a certain specific phase control quantity by operating a switch of a hand side operation part, suction force is generated to suck in refuse of a floor surface or the like. This sucked refuse is detected by a refuse sensor 3 when passing through a dust/dirt passing passage. An air quantity Qn at this time is detected by an air quantity detecting means 4. A preset reference value Qa and a suction time air quantity Qn are compared by a comparing means 5. A control means 8 phase-controls electric power supplied to the motor 2 according to this comparing result and a detecting result of the refuse sensor 3. Thus, electric power according to a suction time refuse quantity and a suction time air quantity can be supplied to the motor 2 to reduce labor.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、吸引時に塵埃通過
経路を通過するごみを検出し、本体のごみ蓄積量やごみ
の検出状態に応じてモータに供給する電力を制御する電
気掃除機の制御回路に係わり、とくに前記ごみセンサと
塵埃通過経路を通過するごみの通過速度を検知する速度
検知手段に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control of a vacuum cleaner which detects dust passing through a dust passage at the time of suction and controls electric power supplied to a motor in accordance with the amount of accumulated dust in the main body and the state of detection of the dust. More particularly, the present invention relates to a speed sensor for detecting a passing speed of dust passing through the dust sensor and the dust passage.

【０００２】[0002]

【従来の技術】近年、家庭内における床種が多様化する
とともに、電気掃除機の吸引力も高効率化が進んできて
いる。一方省エネルギーに対する関心も高まり、床種、
ごみに応じた最適な電気掃除機の供給電力制御が望まれ
ている。2. Description of the Related Art In recent years, floor types in a home have been diversified, and the suction power of a vacuum cleaner has been increasing in efficiency. On the other hand, interest in energy conservation has increased,
There is a demand for optimal power supply control of a vacuum cleaner according to garbage.

【０００３】そこで、電気掃除機は木床、じゅうたん等
の掃除対象の多様化に伴い、電気掃除機の手元操作部で
その吸引力を変化させるものが増えてきており、また、
塵埃通過経路にごみセンサを有し、床面等のごみの量に
応じて吸引力を自動制御するものが主流になってきてい
る。[0003] With the diversification of objects to be cleaned, such as wooden floors and carpets, the number of vacuum cleaners whose suction force is changed by a hand-operated part of the vacuum cleaner is increasing.
The mainstream is one that has a dust sensor in the dust passage and automatically controls the suction force according to the amount of dust on the floor or the like.

【０００４】例えば、集塵室内にごみが蓄積された場合
等、吸引力が低下しそうになるときには、モータの吸気
圧の上昇やモータに流れる電流の減少を検出することに
よって、吸引力を高めるようにモータを制御するものも
ある。この種の掃除機はモータの過熱防止およびモータ
ブラシの耐久性を確保するものである。For example, when the suction force is likely to decrease, for example, when dust is accumulated in the dust collection chamber, the suction force is increased by detecting an increase in the intake pressure of the motor or a decrease in the current flowing through the motor. Some control motors. This type of vacuum cleaner is intended to prevent overheating of the motor and ensure durability of the motor brush.

【０００５】従来、この種の電気掃除機は図９および図
１０に示すように構成していた。以下、その構成につい
て説明する。Conventionally, this type of vacuum cleaner has been configured as shown in FIGS. Hereinafter, the configuration will be described.

【０００６】図９に示すように、掃除機本体１０１は、
手元操作部１０３を有するホース１０２を連結し、この
ホース１０２に延長管１０４を介して床用吸い込み具１
０５を連結している。前記床用吸い込み具１０５から本
体１０１に至る塵埃通過経路３４の一部に発光素子３１
と受光素子３２からなるごみセンサ３を配している。[0006] As shown in FIG.
A hose 102 having a hand operation unit 103 is connected, and the floor suction device 1 is connected to the hose 102 via an extension tube 104.
05 are connected. A light emitting element 31 is provided in a part of the dust passage path 34 from the floor suction tool 105 to the main body 101.
And a dust sensor 3 including a light receiving element 32.

【０００７】掃除機本体１０１内に設けたモータ２を、
図１０に示すように、双方向性サイリスタなどで構成し
た駆動手段９を介して商用電源１に接続している。ごみ
センサ３は、塵埃通過経路３４に設けてごみ量を検出
し、このごみセンサ３の出力を制御手段１０６に入力
し、制御手段１０６によりごみセンサ３により検出した
値に基づきモータ２へ供給する電力量を制御するように
し、制御手段１０６の制御信号に応じて駆動手段９を介
してモータ２をオン／オフ制御する。[0007] The motor 2 provided in the cleaner body 101 is
As shown in FIG. 10, it is connected to the commercial power supply 1 via a driving means 9 constituted by a bidirectional thyristor or the like. The dust sensor 3 is provided in the dust passage 34 to detect the amount of dust, inputs the output of the dust sensor 3 to the control means 106, and supplies the output to the motor 2 based on the value detected by the dust sensor 3 by the control means 106. The power amount is controlled, and the motor 2 is turned on / off via the driving means 9 in accordance with a control signal from the control means 106.

【０００８】さらに、従来の他の例の電気掃除機につい
て図１２、１３を参照しながら説明する。Further, another conventional vacuum cleaner will be described with reference to FIGS.

【０００９】図１２は従来例の電気掃除機の回路構成を
示すブロック図である。ごみセンサ３は塵埃通過経路３
４内を通過するごみを検出する発光素子３１と受光素子
３２からなり、発光素子３１と受光素子３２は塵埃通過
経路３４内の風の流れに対向して設定されている。１３
は受光素子３２の検出結果からごみ量、ごみ種などを判
断するごみ判断手段、８はごみ判断手段１３の判断結果
から前記モータ２に供給する電力を制御する制御手段、
９はこの制御手段７の制御に応じてモータ２を駆動する
駆動手段である。FIG. 12 is a block diagram showing a circuit configuration of a conventional vacuum cleaner. The dust sensor 3 is the dust passage 3
4 includes a light emitting element 31 and a light receiving element 32 for detecting dust passing through the inside 4, and the light emitting element 31 and the light receiving element 32 are set to oppose the flow of wind in the dust passage 34. 13
Is a waste determination means for determining the amount of waste, the type of waste, etc. from the detection result of the light receiving element 32; 8 is a control means for controlling the power supplied to the motor 2 from the determination result of the waste determination means 13;
Reference numeral 9 denotes a driving unit that drives the motor 2 under the control of the control unit 7.

【００１０】図１３は従来例のごみ検出動作を示す波形
図である。図１３（ａ）は受光素子３２を通過するごみ
を検出するごみの検出波形、図１３（ｂ）は通過速度に
応じてごみセンサ３が検出できるごみの大きさと検出幅
の関係を示す。FIG. 13 is a waveform chart showing the dust detection operation of the conventional example. FIG. 13A shows a dust detection waveform for detecting dust passing through the light receiving element 32, and FIG. 13B shows a relationship between the size of dust detected by the dust sensor 3 according to the passing speed and a detection width.

【００１１】上記構成において、その動作を説明する。
使用者が運転を開始するとモータ２は駆動し始める。こ
の時、まだごみは吸引されていないため、発光素子３１
が発光した光は受光素子３２によってそのまま受光され
る。この受光電圧値からごみ判断手段１３はごみが無い
と判断する。この判断結果から制御手段８はモータ２に
供給する電力を低くするように駆動手段９を介して制御
する。次にごみを吸引した場合について説明する。ごみ
が塵埃通過経路３４の発光素子３１と受光素子３２の間
を通過すると、受光素子５が受光する光をごみが遮るこ
とになり、受光素子３２の受光レベルは図１３（ａ）で
示すようにごみが遮っている間だけ少なくなる。即ちご
みが無い時は多く、ある間は少なくなり、ごみの通過を
パルス波形で検出でき、この波形からごみ判断手段１３
はごみの量やごみの種類を判断している。例えばごみの
量が多い場合はパルス数も多く、ごみの量が少ない場合
はパルス数も少ない。また、ごみが大きい場合はパルス
幅が長く、ごみが小さい場合はパルス幅が小さくなる。
このようなパルスの数や幅からごみ判断手段１３はごみ
量やごみの大小を判断し、この判断結果に基づいて制御
手段８がモータ２へ供給する電力を制御していた。The operation of the above configuration will be described.
When the user starts driving, the motor 2 starts driving. At this time, since the dust has not been sucked yet, the light emitting element 31
Is emitted by the light receiving element 32 as it is. The dust determination means 13 determines from the received light voltage value that there is no dust. Based on the result of this determination, the control means 8 controls via the driving means 9 so as to reduce the power supplied to the motor 2. Next, a case where dust is sucked will be described. When the dust passes between the light emitting element 31 and the light receiving element 32 in the dust passage path 34, the light received by the light receiving element 5 is blocked by the dust, and the light receiving level of the light receiving element 32 is as shown in FIG. It is reduced only while garbage is blocked. That is, when there is no garbage, the amount of garbage is reduced during a certain period of time.
Judges the amount and type of garbage. For example, when the amount of dust is large, the number of pulses is large, and when the amount of dust is small, the number of pulses is small. When the dust is large, the pulse width is long, and when the dust is small, the pulse width is small.
The dust determination means 13 determines the amount of waste and the size of the waste from the number and width of such pulses, and the control means 8 controls the power supplied to the motor 2 based on the determination result.

【００１２】[0012]

【発明が解決しようとする課題】このような従来の電気
掃除機では、塵埃通過経路３４を通過するごみ量を検知
し、そのごみの通過量からモータ２への供給電力を制御
していた。ところが、この設定された制御値は、塵埃通
過経路３４を通過するごみ量に対してのみ位相制御を行
うため、集塵室にごみが蓄積された状態と、ごみが蓄積
されていない状態とでは吸引力（風量）が異なるため、
集塵室にごみが蓄積されていない時のほうが蓄積されて
いる時より、ごみが早く通過する。結果、集塵室のごみ
の蓄積量によって塵埃通過経路３４のごみの通過速度が
異なる。In such a conventional vacuum cleaner, the amount of dust passing through the dust passage 34 is detected, and the power supplied to the motor 2 is controlled based on the amount of dust passing. However, since the set control value performs the phase control only on the amount of dust passing through the dust passage path 34, there is a difference between a state where dust is accumulated in the dust collection chamber and a state where dust is not accumulated. Because the suction power (air volume) is different,
When the dust is not accumulated in the dust collection chamber, the dust passes faster than when it is accumulated. As a result, the passing speed of the dust in the dust passage 34 varies depending on the amount of accumulated dust in the dust collection chamber.

【００１３】従って、従来の電気掃除機では、図１３
（ｂ）に示すように、塵埃通過経路３４を通過するごみ
（空気）の通過速度が異なるとパルス幅も異なってしま
い、正確にごみの大小を判断できないという課題があっ
た。Therefore, in the conventional vacuum cleaner, FIG.
As shown in (b), when the passing speed of the dust (air) passing through the dust passage 34 is different, the pulse width is different, and there is a problem that the size of the dust cannot be accurately determined.

【００１４】本発明は上記従来の課題を解決するもの
で、塵埃通過経路３４を通過するごみ量と吸引時の風量
の値に応じてモータ供給電力を制御して快適に掃除がで
き、省力化を図りながらモータの加熱防止およびモータ
のブラシの耐久性を確保することを目的としている。The present invention solves the above-mentioned conventional problems, and controls the power supplied to the motor in accordance with the amount of dust passing through the dust passage 34 and the value of the amount of air at the time of suction, thereby enabling comfortable cleaning and saving power. The purpose of the present invention is to prevent the motor from being heated and to ensure the durability of the motor brush.

【００１５】また、塵埃通過経路を通過するごみと、塵
埃通過経路３４を通過するごみの通過速度からモータに
供給する電力を制御するようにした電気掃除機を提供す
ることを第２の目的とする。It is a second object of the present invention to provide a vacuum cleaner in which electric power supplied to the motor is controlled based on the speed at which dust passing through the dust passage and dust passing through the dust passage. I do.

【００１６】[0016]

【課題を解決するための手段】本発明は上記目的を達成
するために、吸引時の塵埃通過経路を通過するごみを検
出するごみセンサの検出値と、吸引時の風量を検出する
風量検出手段の検出値に応じて、吸引力を発生させるモ
ータに供給する電力を制御するよう構成したものであ
る。In order to achieve the above object, the present invention provides a dust sensor for detecting dust passing through a dust passage at the time of suction, and an air flow detecting means for detecting an air flow at the time of suction. The electric power supplied to the motor for generating the suction force is controlled in accordance with the detected value of.

【００１７】これにより、塵埃通過経路を通過するごみ
量と風量を検出し、これらの値に応じて、モータ供給電
力を制御して快適に掃除ができ、省力化を図りながらモ
ータの加熱防止およびモータのブラシの耐久性を確保す
ることができる。Thus, the amount of dust and the amount of air passing through the dust passage can be detected, and the power supplied to the motor can be controlled in accordance with these values to perform comfortable cleaning. The durability of the motor brush can be ensured.

【００１８】[0018]

【発明の実施の形態】本発明の請求項１に記載の発明
は、吸引力を発生させるモータと、吸引時の塵埃通過経
路を通過するごみを検出するごみセンサと、この吸引時
の風量を検出する風量検出手段と、この風量検出手段の
検出値と前記ごみセンサの検出値に応じて、前記モータ
に供給する電力を制御する制御手段とを備えたものであ
り、塵埃通過経路を通過するごみ量を検出するとともに
風量を検出し、これらの値に応じてモータ供給電力を制
御して快適に掃除ができ、省力化を図りながらモータの
加熱防止およびモータのブラシの耐久性を確保すること
ができ、実ごみ量に応じ、かつ省エネルギーの電力制御
ができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a motor for generating a suction force, a dust sensor for detecting dust passing through a dust passage at the time of suction, and an air volume at the time of suction. And a control means for controlling electric power supplied to the motor in accordance with a detection value of the air flow detection means and a detection value of the dust sensor. Detecting the amount of dust and the amount of air flow, controlling the motor supply power according to these values, enabling comfortable cleaning, preventing motor heating and ensuring the durability of the motor brush while saving labor. Power control according to the actual waste amount and energy saving.

【００１９】請求項２に記載の発明は、吸引力を発生さ
せるモータと、吸引時の塵埃通過経路を通過するごみを
検出するごみセンサと、この吸引時の風量を検出する風
量検出手段と、前記モータに供給する電力の下限値、上
限値の少なくともいずれか一方を制限する制限手段と、
前記風量検出手段の検出値と前記ごみセンサの検出値に
応じて制限手段による制限値を超えない範囲で、前記モ
ータに供給する電力を制御する制御手段とを備えたもの
であり、モータに供給する電力の下限値、上限値の少な
くともいずれか一方を定め、この範囲でモータ供給電力
を制御することにより、電力を確実に制限することがで
き、より省エネルギーの電力制御ができる。According to a second aspect of the present invention, there is provided a motor for generating a suction force, a dust sensor for detecting dust passing through a dust passage at the time of suction, an air volume detecting means for detecting an air volume at the time of suction, Limiting means for limiting at least one of a lower limit value and an upper limit value of the power supplied to the motor,
Control means for controlling the electric power supplied to the motor within a range not exceeding the limit value by the limit means according to the detection value of the air volume detection means and the detection value of the dust sensor. By determining at least one of the lower limit value and the upper limit value of the power to be applied and controlling the motor supply power within this range, the power can be reliably limited, and power control with more energy saving can be performed.

【００２０】請求項３に記載の発明は、吸引力を発生さ
せるモータと、吸引時の塵埃通過経路を通過するごみを
検出するごみセンサと、この吸引時の風量を検出する風
量検出手段と、この風量検出手段の検出結果と予め定め
た基準値とを比較する比較手段と、前記モータに供給す
る電力の下限値、上限値の少なくともいずれか一方を制
限する制限手段と、前記比較手段の比較結果に応じて制
限手段の制限値を切換る切換手段と、前記ごみセンサの
検出値と比較手段の比較結果と制限手段の制限値と切換
手段の切換値とを入力し、前記モータに供給する電力を
制御する制御手段とを備えたものであり、モータに供給
する電力の下限値、上限値の少なくともいずれか一方を
定め、さらに、比較手段の比較結果に応じて少なくとも
１段以上制限手段の制限値を切換えて、モータ供給電力
を制御することにより、より確実にごみを集塵できる。According to a third aspect of the present invention, there is provided a motor for generating a suction force, a dust sensor for detecting dust passing through a dust passage at the time of suction, an air volume detecting means for detecting an air volume at the time of suction, A comparison unit that compares the detection result of the air volume detection unit with a predetermined reference value; a limiting unit that limits at least one of a lower limit value and an upper limit value of power supplied to the motor; Switching means for switching the limit value of the limiting means in accordance with the result; input of the detection value of the dust sensor, the comparison result of the comparing means, the limit value of the limiting means, and the switching value of the switching means, and supply to the motor; Control means for controlling electric power, at least one of a lower limit value and an upper limit value of electric power supplied to the motor is determined, and at least one or more stages are limited in accordance with a comparison result of the comparison means. It switches the limit value, by controlling the motor supply electric power, can be dust collecting dust more reliably.

【００２１】請求項４に記載の発明は、上記請求項１〜
３に記載の発明において、風量検出手段の検出結果と予
め定めた第２の基準値とを比較する第２比較手段と、ご
みセンサの検出値と第２比較手段の比較結果とを入力
し、モータに供給する電力を制御する第２制御手段とを
備え、第２の基準値以下の風量ではごみセンサの出力に
応じたモータ制御を行わないようにしたものであり、よ
り正確に風量に応じてモータ制御でき、モータの過熱を
抑え、かつモータブラシの寿命を確保することができ
る。The invention described in claim 4 is the above-mentioned claim 1-
3. In the invention described in 3, the second comparison means for comparing the detection result of the air volume detection means with a predetermined second reference value, and the detection value of the dust sensor and the comparison result of the second comparison means are input, A second control unit for controlling electric power supplied to the motor, wherein the motor control according to the output of the dust sensor is not performed when the air flow is equal to or less than the second reference value. The motor can be controlled in such a manner that overheating of the motor can be suppressed and the life of the motor brush can be ensured.

【００２２】請求項５に記載の発明は、上記請求項１〜
４に記載の発明において、ごみセンサの検出結果からご
みの大小を判断するごみ種判断手段を備え、このごみ種
判断手段の判断結果から前記ごみセンサの検出値を補正
し、モータに供給する電力を制御するように構成したも
のであり、ごみ種判断手段の判断結果からごみセンサの
検出値を補正して、モータに供給する電力を制御するこ
とにより、より正確にごみ量を検出することができ、正
確なごみ量に応じてモータを制御することができる。The invention described in claim 5 is the above-mentioned claim 1 to claim 1.
4. The invention according to claim 4, further comprising a waste type determining means for determining the size of the waste from the detection result of the waste sensor, correcting the detection value of the waste sensor from the determination result of the waste type determination means, and supplying power to the motor. By controlling the power supplied to the motor by correcting the detection value of the garbage sensor from the determination result of the garbage type determination means, it is possible to more accurately detect the amount of garbage. The motor can be controlled according to the exact amount of waste.

【００２３】本発明の請求項６記載の発明は、吸引力を
発生させるモータと、塵埃通過経路を通過するごみを検
出するごみセンサと、前記塵埃通過経路を通過するごみ
の通過速度を検知する速度検知手段と、前記ごみセンサ
の検出結果と速度検知手段の検知結果から前記モータに
供給する電力を制御する制御手段とを有し、塵埃通過経
路を通過するごみと、塵埃通過経路を通過するごみの通
過速度からモータに供給する電力を制御するようにした
もので、正確にごみ量、ごみの大小を検出でき、最適な
電力制御が図れ、電気掃除機の省エネルギー、使用性、
操作性向上の効果がある。According to a sixth aspect of the present invention, there is provided a motor for generating a suction force, a dust sensor for detecting dust passing through the dust passage, and a speed of passing dust passing through the dust passage. Speed detection means, and control means for controlling the power supplied to the motor based on the detection result of the dust sensor and the detection result of the speed detection means, the dust passing through the dust passage, and the dust passing through the dust passage The power supplied to the motor is controlled based on the passing speed of the garbage, so that the amount of garbage and the size of the garbage can be accurately detected, and optimal power control can be achieved.
This has the effect of improving operability.

【００２４】本発明の請求項７記載の発明は、速度検知
手段をモータに供給する電力を設定する操作手段で構成
したもので、安易に塵埃通過経路を通過するごみの通過
速度を検知できる。According to a seventh aspect of the present invention, the speed detecting means is constituted by operating means for setting electric power to be supplied to the motor, so that the passing speed of dust passing through the dust passage can be easily detected.

【００２５】本発明の請求項８記載の発明は、速度検知
手段をモータの回転数、真空圧、電流値などより間接的
に風量を検知する風量検知手段で構成したもので、より
正確に塵埃通過経路を通過するごみの通過速度を検知で
きる。According to an eighth aspect of the present invention, the speed detecting means is constituted by an air flow detecting means for indirectly detecting the air flow based on the number of rotations of the motor, the vacuum pressure, the current value, etc. The passing speed of the garbage passing through the passing route can be detected.

【００２６】本発明の請求項９記載の発明は、ごみセン
サを発光素子と受光素子とで構成し、速度検知手段の検
知結果に応じて発光素子、受光素子の発光量、受光量の
少なくとも一方を可変するようにしたもので、風速に関
係なく常に正確にごみを検出できる。According to a ninth aspect of the present invention, the dust sensor comprises a light emitting element and a light receiving element, and at least one of the light emitting element, the light emitting amount of the light receiving element, and the light receiving amount according to the detection result of the speed detecting means. Is variable, so that dust can always be detected accurately regardless of the wind speed.

【００２７】[0027]

【実施例】以下、本発明の実施例について、図面を参照
しながら説明する。Embodiments of the present invention will be described below with reference to the drawings.

【００２８】（実施例１）本発明の第１の実施例につい
て図１を参照しながら説明する。なお、従来例と同じ構
成のものは同一符号を付して説明を省略する。(Embodiment 1) A first embodiment of the present invention will be described with reference to FIG. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

【００２９】図１に示すように、モータ２は、吸引力を
発生させるもので、双方向性サイリスタ等で構成した駆
動手段９を直列に接続して商用電源１に接続し、制御手
段８の制御信号に応じてモータ２を位相制御するように
している。ごみセンサ３は吸引時の塵埃通過経路３４を
通過するごみを検出するものである。風量検出手段４は
吸引時の風量を検出するもので、その出力を比較手段５
に入力し、比較手段５は風量検出手段４の検出結果と予
め定めた基準値とを比較する。As shown in FIG. 1, the motor 2 generates a suction force. A driving means 9 composed of a bidirectional thyristor or the like is connected in series and connected to the commercial power supply 1. The phase of the motor 2 is controlled according to the control signal. The dust sensor 3 detects dust passing through the dust passage 34 during suction. The air volume detecting means 4 detects the air volume at the time of suction, and compares the output with the comparing means 5.
The comparison means 5 compares the detection result of the air volume detection means 4 with a predetermined reference value.

【００３０】制限手段６はモータ２に供給する電力の下
限値ＷＬと上限値ＷＨとを制限する。切換手段７は比較
手段５の比較結果に応じて、少なくとも１段以上制限手
段６の制限値を切換る。制御手段８はごみセンサ３の検
出値と比較手段５の比較結果と制限手段６の制限値と切
換手段７の切換値とを入力し、モータ２に供給する電力
を制御するものである。The limiting means 6 limits the lower limit WL and the upper limit WH of the power supplied to the motor 2. The switching means 7 switches the limit value of the limiting means 6 at least one or more stages according to the comparison result of the comparing means 5. The control means 8 inputs the detection value of the dust sensor 3, the comparison result of the comparison means 5, the limit value of the restriction means 6, and the switching value of the switching means 7, and controls the power supplied to the motor 2.

【００３１】図２（ａ）は風量対電力のごみセンサの値
に対する変化量を考慮した特性図、（ｂ）は風量対ごみ
蓄積量の特性図である。FIG. 2A is a characteristic diagram in which the amount of change in the amount of air versus electric power with respect to the value of the dust sensor is considered, and FIG. 2B is a characteristic diagram of the amount of air versus the amount of accumulated dust.

【００３２】上記構成において動作を説明する。まず、
使用者が手元操作部のスイッチ（図示せず）を操作する
ことにより、ある一定の位相制御量でモータ２へ電力を
供給すると、吸引力が発生し、床面等のごみを吸い込
む。この吸い込んだごみが塵埃通過経路３４を通過する
際にごみセンサ３により検出される。この時の風量Ｑｎ
を風量検出手段４により検出する。そして、予め設定し
ている基準値Ｑａと吸引時の風量Ｑｎとを比較手段５に
より比較する。この比較結果とごみセンサ３の検出結果
に応じて、制御手段８はモータ２に供給する電力を位相
制御する。The operation of the above configuration will be described. First,
When the user operates a switch (not shown) of the operation unit to supply power to the motor 2 with a certain phase control amount, a suction force is generated, and dust on the floor or the like is sucked. When the sucked dust passes through the dust passage path 34, the dust is detected by the dust sensor 3. Air volume Qn at this time
Is detected by the airflow detecting means 4. Then, the comparison means 5 compares the preset reference value Qa with the air volume Qn at the time of suction. The control means 8 controls the phase of the power supplied to the motor 2 according to the comparison result and the detection result of the dust sensor 3.

【００３３】吸引時の風量Ｑｎが多い状態（Ｑａ＜Ｑ
ｎ）では、まだごみが集塵室（図示せず）内にあまり溜
まっておらず、吸い込み力が弱くても充分にごみを吸引
することができる。そして、ごみがある程度集塵室に溜
まってくると、吸い込み風量が少なくなり、風量が多い
ときと同じ位相でモータ２に電力を供給しても吸引力は
弱くなる。When the air volume Qn at the time of suction is large (Qa <Q
In n), dust is not yet accumulated in a dust collection chamber (not shown), and dust can be sufficiently sucked even if the suction force is weak. When a certain amount of dust accumulates in the dust collection chamber, the suction air volume decreases, and the suction force decreases even when power is supplied to the motor 2 in the same phase as when the air volume is high.

【００３４】したがって、風量が少ない場合は、多い場
合よりも供給電力が多くなるように位相制御値を可変す
ることにより、集塵室内に蓄積されたごみ量と風量に応
じて最適な吸い込み力でモータ２を位相制御することが
でき、快適に掃除ができ、省力化を図りながらモータ２
の加熱防止およびモータ２のブラシの耐久性を確保する
ことができ、実ごみ量に応じ、かつ省エネルギーの電力
制御ができる。Therefore, when the air volume is small, the phase control value is varied so that the supplied power becomes larger than when the air volume is large, so that an optimal suction force can be obtained according to the amount of dust accumulated in the dust collection chamber and the air volume. The phase of the motor 2 can be controlled, the cleaning can be performed comfortably, and the motor 2
, And the durability of the brush of the motor 2 can be ensured, and power control can be performed in accordance with the actual amount of waste and energy saving.

【００３５】また、ごみを吸い込むのに必要な吸引力
は、集塵室内にごみがない状態でモータ２に供給する電
力がＷＬあれば確実に吸引できる。反対に、集塵室にご
みがたくさんある状態では、ごみを吸い込んでも集塵で
きるスペースがない。そのため、モータ２に供給する電
力がＷＨ以上あってもごみの取れ性は変わらない。した
がって、モータ２に供給する電力の下限値ＷＬまたは上
限値ＷＨの一方、あるいは下限値ＷＬと上限値ＷＨの両
方を設定し、供給電力を制限することで、電力を確実に
制限することができ、より省エネルギーの電力制御がで
きる。The suction force required for sucking dust can be reliably sucked if the power supplied to the motor 2 is WL in a state where there is no dust in the dust collection chamber. Conversely, if there is a lot of dust in the dust collection chamber, there is no space for dust collection even if the dust is sucked. Therefore, even if the electric power supplied to the motor 2 is equal to or more than WH, the property of removing dust does not change. Therefore, by setting either the lower limit WL or the upper limit WH of the power supplied to the motor 2 or both the lower limit WL and the upper limit WH and limiting the supply power, the power can be reliably limited. , More energy-saving power control.

【００３６】また、制限手段６によってモータ２に供給
する電力の下限値ＷＬと上限値ＷＨとが定められている
が、比較手段５の比較結果に応じて切換手段７が制限手
段６の制限値を切換るとさらによい。例えば、図２に示
すように、Ｑｎ＞Ｑａの場合はまだ十分に吸引力がある
ため、上限値ＷＨと下限値ＷＬは小さく設定できる。反
対にＱｎ＜Ｑａの場合は、ごみが集塵室にある程度溜ま
った状態であるため、より大きな吸引力を必要とする。
そこで上限値ＷＨと下限値ＷＬが大きくなるように切換
手段７により切り換える。The lower limit value WL and the upper limit value WH of the power supplied to the motor 2 are determined by the limiting means 6, but the switching means 7 sets the limit value of the limiting means 6 according to the comparison result of the comparing means 5. It is even better to switch. For example, as shown in FIG. 2, when Qn> Qa, there is still a sufficient suction force, so that the upper limit value WH and the lower limit value WL can be set small. On the other hand, when Qn <Qa, the dust has accumulated to some extent in the dust collection chamber, and thus requires a larger suction force.
Therefore, switching is performed by the switching means 7 so that the upper limit value WH and the lower limit value WL increase.

【００３７】本実施例では風量検出手段４として特に説
明を行わなかったが、電流検出手段、圧力検出、モータ
回転数検出、電力検出等、風量を直接的又は間接的に検
出できる方式であれば、特に方式にこだわるものではな
い。In this embodiment, the air volume detection means 4 is not specifically described. However, any method capable of directly or indirectly detecting the air volume, such as current detection means, pressure detection, motor rotation speed detection, and power detection. It is not particular about the method.

【００３８】以上のように本実施例によれば、モータ２
へは吸引時のごみ量と吸引時の風量に応じた電力が供給
でき、使用性の優れた省電力化を図った電気掃除機を提
供することができる。As described above, according to the present embodiment, the motor 2
Can supply electric power according to the amount of dust at the time of suction and the amount of air at the time of suction, and it is possible to provide a vacuum cleaner with excellent usability and energy saving.

【００３９】（実施例２）つぎに、本発明の第２の実施
例について図３を参照しながら説明する。なお、上記実
施例１と同じ部品には同一符号を付して説明を省略す
る。(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

【００４０】図３に示すように、第２比較手段１１は、
風量検出手段４の検出結果と予め定めた第２の基準値と
を比較するものであり、第２制御手段１２はごみセンサ
３の検出値と第２比較手段１１の比較結果とを入力し、
モータ２に供給する電力を制御するよう構成している。As shown in FIG. 3, the second comparing means 11
The second control means 12 compares the detection result of the air volume detection means 4 with a predetermined second reference value, and inputs the detection value of the dust sensor 3 and the comparison result of the second comparison means 11,
The power supplied to the motor 2 is controlled.

【００４１】上記構成において動作を説明する。まず、
風量検出手段４の検出結果Ｑｎと予め定めた第２の基準
値Ｑｍとを第２比較手段１１で比較し、この比較結果に
基づいて、第２制御手段１２でモータ２に供給する電力
を制御する。The operation of the above configuration will be described. First,
The second comparison means 11 compares the detection result Qn of the air volume detection means 4 with a predetermined second reference value Qm, and controls the power supplied to the motor 2 by the second control means 12 based on the comparison result. I do.

【００４２】集塵室のごみの蓄積量がほぼ一杯である風
量Ｑｍ以下になると、電力を増しても吸引力はあまり増
えず、反対に集塵袋（図示せず）の目詰まりが著しくな
り、風量が低下し、それによりモータ２が過熱状態にな
ってしまうので、Ｑｍ＜Ｑｎの風量では供給電力を低く
抑える制御とする。このような位相制御値を駆動手段９
へ出力し、モータ２が回転する。When the amount of accumulated dust in the dust collection chamber becomes equal to or less than the air volume Qm, which is almost full, even if the power is increased, the suction force does not increase much, and conversely, the dust collection bag (not shown) becomes significantly clogged. Since the air flow is reduced and the motor 2 is overheated due to this, the supply power is controlled to be low at the air flow of Qm <Qn. Such a phase control value is supplied to the driving unit 9.
And the motor 2 rotates.

【００４３】また、図１１（ｂ）と図２（ｂ）に示すよ
うに、集塵室内の集塵袋のごみ量がある程度蓄積された
状態である風量Ｑｍ＞Ｑｎではごみが十分に集塵されて
おり、省電力化を図っても問題ない。As shown in FIGS. 11 (b) and 2 (b), when the air volume Qm> Qn is a state in which the dust amount in the dust collection bag is accumulated to some extent, the dust is sufficiently collected. There is no problem even if power saving is achieved.

【００４４】以上のように本実施例によれば、モータ２
へは吸引時のごみ量と風量に応じた電力が供給でき、使
用性の優れた電気掃除機を提供することができ、モータ
２の過熱を抑え、かつモータブラシの寿命を確保するこ
とができる。As described above, according to the present embodiment, the motor 2
Can supply electric power according to the amount of dust and air flow at the time of suction, provide a vacuum cleaner with excellent usability, suppress overheating of the motor 2, and secure the life of the motor brush. .

【００４５】（実施例３）つぎに、本発明の第３の実施
例について図４を参照しながら説明する。なお、上記実
施例１または２と同じ部品には同一符号を付して説明を
省略する。(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first or second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

【００４６】図４に示すように、ごみ種判断手段２１
は、ごみセンサ３の検出結果からごみ種を判断するもの
で、補正手段２２はごみ種判断手段３の判断結果から比
較手段５の比較値を補正する。第３制御手段３はこの補
正結果とごみセンサ３の検出値とを入力し、モータ２に
供給する電力を制御するよう構成している。As shown in FIG.
Is for judging the type of garbage from the detection result of the garbage sensor 3, and the correcting means 22 corrects the comparison value of the comparing means 5 from the result of the judgment by the garbage type determining means 3. The third control unit 3 is configured to input the correction result and the detection value of the dust sensor 3 and control the power supplied to the motor 2.

【００４７】上記構成において動作を説明する。吸引時
の風量は集塵室のごみの蓄積量に応じて制御されるが、
ごみの種類に応じてその風量が異なってくる。例えば、
綿ごみのように、軽く空気を多く含んだごみでは、集塵
室が一杯になっても風量はあまり減少しない。反対に、
砂塵のように細かいごみは、あまり集塵されていなくて
も吸引力（風量）が減少する。The operation of the above configuration will be described. The air volume during suction is controlled according to the amount of dust accumulated in the dust collection chamber,
The amount of air depends on the type of garbage. For example,
In the case of light airy garbage, such as cotton garbage, even if the dust collection chamber becomes full, the air volume does not decrease so much. Conversely,
The dust (such as dust) reduces the suction power (air volume) even if it is not collected very much.

【００４８】そこで、ごみセンサ３で検出した検出値か
らごみ種判断手段２１がごみ種を判断し、この判断結果
に応じて、比較手段５の比較値を補正手段２２が補正す
る。すなわち、砂塵のように細かいごみはごみセンサ３
により、幅の短いパルス信号で検出され、綿ごみのよう
な大きなごみは幅の長いパルス信号として検出される。
この違いに着目し、ごみ種を判断している。Therefore, the garbage type judging means 21 judges the type of garbage from the detection value detected by the garbage sensor 3, and the correcting means 22 corrects the comparison value of the comparing means 5 according to the result of this judgment. That is, dust as fine as dust
As a result, a large pulse such as cotton dust is detected as a pulse signal having a long width.
Focusing on this difference, the type of garbage is determined.

【００４９】砂塵のような目詰まりしやすいごみの場合
は、比較風量Ｑａを高めに補正し、反対に綿ごみのよう
なごみでは低めに補正する。そして、補正結果に応じ
て、モータ２へ供給する電力を第３制御手段２３により
制御する。In the case of dust that is easily clogged, such as dust, the comparative air flow Qa is corrected to be higher, and conversely, for dust such as cotton, the correction is made lower. Then, the electric power supplied to the motor 2 is controlled by the third control means 23 according to the correction result.

【００５０】以上のように本実施例によれば、風量を、
ごみ種に応じて補正しているので、より正確にごみ量を
検出することができ、正確なごみ量に応じてモータを制
御することができる。As described above, according to this embodiment, the air volume is
Since the correction is made according to the type of waste, the amount of waste can be detected more accurately, and the motor can be controlled according to the accurate amount of waste.

【００５１】（実施例４）以下、本発明の電気掃除機の
第４の実施例について図５、６を参照しながら説明す
る。なお、従来例、実施例１〜３と同じ構成要素には同
一番号を付与して詳細な説明を省略する。Embodiment 4 Hereinafter, a fourth embodiment of the vacuum cleaner of the present invention will be described with reference to FIGS. The same components as those of the conventional example and the first to third embodiments are given the same reference numerals, and the detailed description is omitted.

【００５２】また、同一の大きさのごみでも吸引する速
度が異なるとごみセンサ３が検出するパルス信号の長さ
が異なる。例えば、吸引力が強いとごみの通過速度は速
くなり、パルス幅は短くなり、反対に吸引力が弱いとご
みの通過速度は遅くなり、パルス幅は長くなる。本実施
例は、このような通過速度の変化に応じて、モータ２へ
供給電力を補正するものである。Further, if the suction speed is different even for the same size dust, the length of the pulse signal detected by the dust sensor 3 is different. For example, when the suction force is strong, the passing speed of the dust increases, and the pulse width decreases. Conversely, when the suction force is weak, the passing speed of the dust decreases, and the pulse width increases. In the present embodiment, the power supplied to the motor 2 is corrected according to such a change in the passing speed.

【００５３】図５は本実施例の構成を示すブロック図で
ある。３５は塵埃通過経路３４を通過するごみの通過速
度を検知する速度検知手段である。FIG. 5 is a block diagram showing the configuration of this embodiment. Reference numeral 35 denotes a speed detecting means for detecting a passing speed of dust passing through the dust passage 34.

【００５４】図６は本実施例の電気掃除機の風量と回転
数、真空圧、及び電流値の関係を示す特性図である。FIG. 6 is a characteristic diagram showing the relationship between the air volume and the rotation speed, the vacuum pressure, and the current value of the vacuum cleaner of this embodiment.

【００５５】上記構成において、その動作を説明する。
まず、使用者が設定手段（図示せず）で電力を設定する
と、モータ２はその設定された電力で駆動し始める。こ
の時、まだごみは吸引されていないため、電力は低い状
態である。この状態でごみが塵埃通過経路３４の発光素
子３１と受光素子３２の間を通過すると、受光素子３２
の受光レベルは図１３（ａ）で示すようにパルス波形と
なり、ごみが通過したことを検出する。ところが図１３
（ｂ）に示すようにごみの通過速度によってパルス幅が
異なる。そこで、塵埃通過経路３４を通過するごみ（空
気）の通過速度を速度検知手段１０で検知し、ごみセン
サ３の検出結果と速度検知手段３５の検出結果を入力し
たごみ判断手段３３がごみ量、ごみの大小を判断し、そ
の判断結果に基づいて制御手段７がモータ２の供給電力
の制御量を定め、駆動手段９を介してモータ２を制御し
ている。The operation of the above configuration will be described.
First, when the user sets the electric power with the setting means (not shown), the motor 2 starts driving with the set electric power. At this time, the power is low because the dust has not been sucked yet. In this state, when dust passes between the light emitting element 31 and the light receiving element 32 in the dust passage path 34, the light receiving element 32
13A has a pulse waveform as shown in FIG. 13A, and it is detected that dust has passed. However, FIG.
As shown in (b), the pulse width varies depending on the passing speed of the dust. Therefore, the speed of the dust (air) passing through the dust passage 34 is detected by the speed detecting means 10, and the garbage judging means 33, which inputs the detection result of the garbage sensor 3 and the detection result of the speed detecting means 35, outputs the garbage amount, The control means 7 determines the amount of power to be supplied to the motor 2 based on the determination result of the size of the refuse, and controls the motor 2 via the drive means 9.

【００５６】また、ごみの通過速度は塵埃通過経路３４
を通過する空気の風量を塵埃通過経路３４の断面積で除
したもので定めることができる。そして塵埃通過経路３
４の形状は定まっている（一定）ことから風量に比例す
ることがわかる。従って、風量を検知することで風速を
検知したことになる。又図６に示すように風量とモータ
２の回転数（ａ）、真空圧（ｂ）、及び電流値（ｃ）と
はそれぞれ１対１で対応しているため、これら回転数、
真空圧、及び電流値などから風量を間接的に検知し、そ
の風量より速度を検知すればよい。さらに設定手段３６
で設定した位相制御量によっても風量を簡易的に検知す
ることができる。なぜならば、位相制御量が定まると供
給電力が定まり、供給電力が定まると風量も定まるため
である。The passing speed of the dust is determined by the dust passing path 34.
Can be determined by dividing the air volume of the air passing through by the cross-sectional area of the dust passage path 34. And the dust passage 3
Since the shape of No. 4 is fixed (constant), it is understood that the shape is proportional to the air volume. Therefore, the wind speed is detected by detecting the air volume. Also, as shown in FIG. 6, the air volume and the rotation speed (a), the vacuum pressure (b), and the current value (c) of the motor 2 correspond to each other on a one-to-one basis.
The air volume may be detected indirectly from the vacuum pressure and the current value, and the speed may be detected from the air volume. Further setting means 36
The air flow can be easily detected also by the phase control amount set in the above. This is because when the phase control amount is determined, the supplied power is determined, and when the supplied power is determined, the air flow is also determined.

【００５７】以上のように本実施例によれば、塵埃通過
経路３４を通過するごみの量と、ごみの通過速度からモ
ータ２に供給する電力を制御するようにしたことで、正
確にごみ量、ごみの大小を検出し、最適な電力制御が図
れ、電気掃除機の省エネルギー、使用性、操作性の良い
電気掃除機を提供することができる。As described above, according to the present embodiment, the amount of dust passing through the dust passage 34 and the power supplied to the motor 2 are controlled based on the speed at which the dust passes, so that the amount of dust can be accurately determined. Thus, it is possible to detect the size of dust, to achieve optimal power control, and to provide a vacuum cleaner with good energy saving, usability, and operability.

【００５８】（実施例５）以下、本発明の電気掃除機の
第５の実施例について図７、８を参照しながら説明す
る。なお、実施例４と同じ構成要素には同一符号を付与
して詳細な説明を省略する。図７において、２１は受光
素子３２の検出結果とある定めた値とを比較する比較手
段、２２、２３は速度検知手段１０の検知結果に応じて
発光量または受光量のいずれか一方、あるいは発光、受
光量とも可変するようにした発光量可変手段、受光量可
変手段である。Embodiment 5 Hereinafter, a fifth embodiment of the vacuum cleaner of the present invention will be described with reference to FIGS. Note that the same components as those in the fourth embodiment are denoted by the same reference numerals, and detailed description is omitted. In FIG. 7, reference numeral 21 denotes comparison means for comparing the detection result of the light receiving element 32 with a predetermined value, and reference numerals 22 and 23 denote either the light emission amount or the light reception amount or the light emission amount in accordance with the detection result of the speed detection means 10. , A light-emitting amount varying unit and a light-receiving amount varying unit that are also variable.

【００５９】上記構成においてその動作を説明する。通
常家庭内で吸引したいごみは微細なものでは、砂塵やダ
ニなどで、大きさは数１０マイクロメートルで、ごみの
通過速度にもよるが検出するパルスの幅は数１０マイク
ロ秒となる。そしてこのような微細なごみでは発光素子
３１から発せられる光を十分に遮ることができないた
め、図８に示すように、受光素子３２の受光波形は図８
（ａ）に示すようにパルスでなくなる。The operation of the above configuration will be described. Normally, fine garbage to be sucked in the home is fine, such as dust or mite, and has a size of several tens of micrometers, and the width of a pulse to be detected is several tens of microseconds depending on the passing speed of the garbage. Since the light emitted from the light emitting element 31 cannot be sufficiently blocked by such fine dust, the light receiving waveform of the light receiving element 32 is changed as shown in FIG.
It is no longer a pulse as shown in FIG.

【００６０】そこで微細なごみでも、確実に検出結果が
パルスとなるように比較手段２１を設け確実にパルス波
形にしてごみ判断手段３３に送っている。例えば図８
（ａ）の一点鎖線で示すレベルを比較値とすると、比較
手段２１で比較した結果は、図８（ａ）の破線で示すよ
うなパルス波形となり、確実に微細なごみでも検出でき
る。又受光素子３２にも応答速度があり、光の遮断時間
が短すぎると十分に応答できないことがある。Therefore, even in the case of fine dust, the comparing means 21 is provided so that the detection result becomes a pulse without fail, and is sent to the dust judgment means 33 with a reliable pulse waveform. For example, FIG.
Assuming that the level indicated by the one-dot chain line in (a) is a comparison value, the result of comparison by the comparing means 21 has a pulse waveform as indicated by the broken line in FIG. 8A, and even fine dust can be reliably detected. The light receiving element 32 also has a response speed, and if the light blocking time is too short, it may not be possible to respond sufficiently.

【００６１】ところが、ごみの通過速度が変化すると受
光量は、図８（ｂ）に示すように、速度が速いと光を遮
る時間が少なく、反対に速度が遅いと多くなる。このた
め、同一のごみでも通過速度によって、検出時間が異な
り、受光素子の応答速度より短い場合も生じ、最悪は検
出できたりできなかったりしてしまう。そこで、速度検
知手段３５の検知結果に応じて、発光素子３１の発光
量、又は受光素子３２の受光量、あるいは発光、受光量
ともに発光量可変手段２２、受光量可変手段２３で可変
し、風速に関係なく、同一のごみが通過したら同一の出
力を行うようにする。即ち速度が速い場合は、発光、受
光量を多くし、反対に速度が遅い場合は、発光、受光量
をすくなくするよう可変する。However, when the passing speed of the dust changes, the amount of received light increases as the speed increases, as shown in FIG. 8 (b), and increases when the speed decreases. For this reason, the detection time varies depending on the passing speed even for the same dust, and the detection time may be shorter than the response speed of the light receiving element. Therefore, according to the detection result of the speed detection means 35, the light emission amount of the light emitting element 31, the light reception amount of the light receiving element 32, or both the light emission and the light reception amount are changed by the light emission amount variable means 22 and the light reception amount variable means 23, Regardless of, the same output is made when the same garbage passes. That is, when the speed is high, the amount of light emission and light reception is increased, and when the speed is low, the amount of light emission and light reception is varied so as to be reduced.

【００６２】あるいは、比較手段２１の比較レベルをご
みの通過速度が早い場合は少ない変化量で遅い場合は多
い変化量で比較するよう可変することで同様の効果をも
たらしてもよいことは言うまでもない。Alternatively, it is needless to say that the same effect may be obtained by changing the comparison level of the comparison means 21 so that the comparison is made with a small amount of change when the passing speed of the refuse is high and with a large amount of change when the garbage passing speed is low. .

【００６３】以上のように本実施例によれば、速度検知
手段３５の検知結果に応じて発光量または受光量、発
光、受光量とも可変するようにしたことにより、風速に
関係なく常に正確にごみを検出でき、より最適な電力制
御が図れ、電気掃除機の省エネルギー、使用性、操作性
の優れた電気掃除機を提供することができる。As described above, according to the present embodiment, the light emission amount or the light reception amount, and both the light emission and the light reception amount are made variable in accordance with the detection result of the speed detection means 35, so that it is always accurate regardless of the wind speed. Waste can be detected, more optimal power control can be achieved, and a vacuum cleaner having excellent energy saving, usability, and operability of the vacuum cleaner can be provided.

【００６４】[0064]

【発明の効果】以上のように本発明の請求項１に記載の
発明によれば、塵埃通過経路を通過するごみ量を検出す
ると共に風量を検出し、これらの値に応じてモータ供給
電力を制御して快適に掃除ができ、省力化を図りながら
モータの加熱防止およびモータのブラシの耐久性を確保
することができ、風量に関係なく実ごみ量に応じ、かつ
省エネルギーの電力制御ができる。As described above, according to the first aspect of the present invention, the amount of dust passing through the dust passage and the amount of air are detected, and the electric power supplied to the motor is determined in accordance with these values. It is possible to control and clean comfortably, prevent motor heating and ensure durability of the motor brush while saving labor, and control power according to actual waste amount and energy saving regardless of air flow.

【００６５】また、請求項２に記載の発明によれば、モ
ータに供給する電力の下限値、上限値、下限上限値の両
方のいずれかを定め、この範囲でモータ供給電力を制御
することにより、電力を確実に制限することができ、よ
り省エネルギーの電力制御ができる。According to the second aspect of the present invention, any one of the lower limit value, the upper limit value, and the lower limit upper limit value of the power supplied to the motor is determined, and the motor supply power is controlled within this range. Thus, the power can be reliably limited, and more energy-saving power control can be performed.

【００６６】また、請求項３に記載の発明によれば、モ
ータに供給する電力の下限値、上限値、下限上限値の両
方のいずれかを定め、さらに、比較手段の比較結果に応
じて少なくとも１段以上制限手段の制限値を切換えて、
モータ供給電力を制御することにより、より確実にごみ
を集塵できる。According to the third aspect of the present invention, any one of the lower limit value, the upper limit value, and the lower limit upper limit value of the power supplied to the motor is determined. By switching the limit value of the limit means for one or more stages,
By controlling the motor supply power, dust can be collected more reliably.

【００６７】また、請求項４に記載の発明によれば、第
２の基準値以下の風量ではごみセンサによるモータ制御
を行わないようにしているので、より正確に風量に応じ
てモータ制御でき、モータの過熱を抑え、かつモータブ
ラシの寿命を確保することができる。According to the fourth aspect of the present invention, the motor control by the dust sensor is not performed when the air flow is equal to or less than the second reference value, so that the motor can be more accurately controlled according to the air flow. It is possible to suppress overheating of the motor and ensure the life of the motor brush.

【００６８】また、請求項５に記載の発明によれば、ご
み種判断手段の判断結果からごみセンサの検出値を補正
し、モータに供給する電力を制御することにより、より
正確にごみ量を検出することができ、正確なごみ量に応
じてモータを制御することができる。According to the fifth aspect of the present invention, the amount of waste can be more accurately determined by correcting the detection value of the waste sensor from the determination result of the waste type determination means and controlling the power supplied to the motor. It can detect and control the motor according to the exact amount of waste.

【００６９】請求項６に係わる本発明は、塵埃通過経路
を通過するごみと、塵埃通過経路を通過するごみの通過
速度からモータに供給する電力を制御するようにしたこ
とにより、正確にごみ量、ごみ種を検出でき、最適な電
力制御が図れ、電気掃除機の省エネルギー、使用性、操
作性向上の効果がある。According to the sixth aspect of the present invention, the amount of dust passing through the dust passage and the power supplied to the motor are controlled based on the passing speed of the dust passing through the dust passage, so that the amount of waste can be accurately determined. In addition, it is possible to detect the type of garbage, to achieve optimal power control, and to improve the energy saving, operability and operability of the vacuum cleaner.

【００７０】請求項７に係わる本発明は、速度検知手段
をモータに供給する電力を設定する操作手段で構成した
ことにより、安価でかつ容易に塵埃通過経路を通過する
ごみの通過速度を検知できる。According to the seventh aspect of the present invention, since the speed detecting means is constituted by operating means for setting electric power to be supplied to the motor, the passing speed of the dust passing through the dust passing path can be easily detected at low cost. .

【００７１】請求項８に係わる本発明は、速度検知手段
をモータの回転数、真空圧、電流値などの風量検知手段
で構成したことにより、より正確に塵埃通過経路を通過
するごみの通過速度を検知できる。According to the eighth aspect of the present invention, the speed detecting means is constituted by means for detecting the air flow such as the number of rotations of the motor, vacuum pressure, current value, etc., so that the passing speed of the dust passing through the dust passing path can be more accurately determined. Can be detected.

【００７２】請求項９に係わる本発明は、ごみセンサを
発光素子と受光素子とで構成し、速度検知手段の検知結
果に応じて発光量または受光量、発光、受光量とも可変
するようにしたことにより、風速に関係なく常に正確に
ごみを検出できる。According to a ninth aspect of the present invention, the dust sensor includes a light emitting element and a light receiving element, and the light emission amount or the light reception amount, and the light emission and the light reception amount are made variable in accordance with the detection result of the speed detection means. Thus, dust can always be detected accurately regardless of the wind speed.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の第１の実施例の電気掃除機のブロック
図FIG. 1 is a block diagram of a vacuum cleaner according to a first embodiment of the present invention.

【図２】（ａ）同電気掃除機の風量−電力の関係を示す
特性図 （ｂ）同電気掃除機の風量−ごみ蓄積量の関係を示す特
性図FIG. 2 (a) is a characteristic diagram showing a relationship between air volume and electric power of the vacuum cleaner, and (b) is a characteristic diagram showing a relationship between air volume and garbage accumulation amount of the vacuum cleaner.

【図３】本発明の第２の実施例の電気掃除機のブロック
図FIG. 3 is a block diagram of a vacuum cleaner according to a second embodiment of the present invention.

【図４】本発明の第３の実施例の電気掃除機のブロック
図FIG. 4 is a block diagram of a vacuum cleaner according to a third embodiment of the present invention.

【図５】同電気掃除機の構成を示すブロック図FIG. 5 is a block diagram showing a configuration of the electric vacuum cleaner.

【図６】同電気掃除機の風量−回転数、真空度、電流値
を示す特性図FIG. 6 is a characteristic diagram showing the air volume-the number of rotations, the degree of vacuum, and the current value of the vacuum cleaner.

【図７】本発明の第５の実施例を示す電気掃除機の構成
を示すブロック図FIG. 7 is a block diagram showing a configuration of a vacuum cleaner according to a fifth embodiment of the present invention.

【図８】（ａ）同電気掃除機に用いられた受光素子によ
る受光量の変化を示す図 （ｂ）同受光素子の受光量とごみの通過速度との関係を
示す図8A is a diagram showing a change in the amount of light received by a light receiving element used in the vacuum cleaner. FIG. 8B is a diagram showing a relationship between the amount of light received by the light receiving element and the passing speed of dust.

【図９】従来の電気掃除機を示す全体斜視図FIG. 9 is an overall perspective view showing a conventional vacuum cleaner.

【図１０】同電気掃除機のブロック図FIG. 10 is a block diagram of the vacuum cleaner.

【図１１】（ａ）同電気掃除機の風量−電力の関係を示
す特性図 （ｂ）同電気掃除機の風量−ごみ蓄積量の関係を示す特
性図FIG. 11A is a characteristic diagram showing a relationship between the air volume and the electric power of the vacuum cleaner, and FIG. 11B is a characteristic diagram showing a relationship between the air volume and the amount of accumulated dust of the vacuum cleaner.

【図１２】従来の他の例を示す電気掃除機の構成を示す
ブロック図FIG. 12 is a block diagram showing a configuration of a vacuum cleaner showing another example of the related art.

【図１３】（ａ）同電気掃除機に使用された受光素子に
よる受光量の変化を示す図 （ｂ）同受光素子によりごみが検出される際のごみの通
過速度とパルス幅の関係を示す図FIG. 13A is a diagram showing a change in the amount of light received by a light receiving element used in the electric vacuum cleaner. FIG. 13B is a view showing a relationship between a passing speed of the dust and a pulse width when the light is detected by the light receiving element. Figure

【符号の説明】[Explanation of symbols]

２ モータ ３ ごみセンサ ４ 風量検出手段 ８ 制御手段 ３１ 発光素子 ３２ 受光素子 ３３ ごみ判断手段 ３４ 塵埃通過経路 ３５ 速度検知手段 ３６ 設定手段 ２１ 比較手段 ２２ 発光量可変手段 ２３ 受光量可変手段 Reference Signs List 2 Motor 3 Dust sensor 4 Air flow detecting means 8 Control means 31 Light emitting element 32 Light receiving element 33 Dust determining means 34 Dust passage path 35 Speed detecting means 36 Setting means 21 Comparison means 22 Light emitting amount variable means 23 Light receiving amount variable means

フロントページの続き (72)発明者 松代 忠 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3B057 DA06 DA07 DE01 Continuation of the front page (72) Inventor Tadashi Matsushiro 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3B057 DA06 DA07 DE01

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】 吸引力を発生させるモータと、吸引時の
塵埃通過経路を通過するごみを検出するごみセンサと、
この吸引時の風量を検出する風量検出手段と、この風量
検出手段の検出値と前記ごみセンサの検出値に応じて、
前記モータに供給する電力を制御する制御手段とを備え
た電気掃除機。A motor for generating a suction force, a dust sensor for detecting dust passing through a dust passage at the time of suction,
Air volume detection means for detecting the air volume at the time of suction, and a detection value of the air volume detection device and a detection value of the dust sensor,
A controller for controlling electric power supplied to the motor. 【請求項２】 吸引力を発生させるモータと、吸引時の
塵埃通過経路を通過するごみを検出するごみセンサと、
この吸引時の風量を検出する風量検出手段と、前記モー
タに供給する電力の下限値、上限値の少なくともいずれ
か一方を制限する制限手段と、前記風量検出手段の検出
値と前記ごみセンサの検出値に応じて制限手段による制
限値を超えない範囲で、前記モータに供給する電力を制
御する制御手段とを備えた電気掃除機。2. A motor for generating a suction force, a dust sensor for detecting dust passing through a dust passage at the time of suction, and
Air volume detecting means for detecting the air volume at the time of suction; limiting means for restricting at least one of a lower limit value and an upper limit value of electric power supplied to the motor; a detection value of the air volume detecting device and detection of the dust sensor A controller configured to control electric power supplied to the motor within a range that does not exceed a limit value set by the limiter according to the value. 【請求項３】 吸引力を発生させるモータと、吸引時の
塵埃通過経路を通過するごみを検出するごみセンサと、
この吸引時の風量を検出する風量検出手段と、この風量
検出手段の検出結果と予め定めた基準値とを比較する比
較手段と、前記モータに供給する電力の下限値、上限値
の少なくともいずれか一方を制限する制限手段と、前記
比較手段の比較結果に応じて制限手段の制限値を切り換
える切換手段と、前記ごみセンサの検出値と比較手段の
比較結果と制限手段の制限値と切換手段の切換値とを入
力し、前記モータに供給する電力を制御する制御手段と
を備えた電気掃除機。3. A motor for generating a suction force, a dust sensor for detecting dust passing through a dust passage at the time of suction, and
Air volume detection means for detecting the air volume at the time of suction, comparison means for comparing the detection result of the air volume detection device with a predetermined reference value, and at least one of a lower limit value and an upper limit value of electric power supplied to the motor. Limiting means for limiting one of them, switching means for switching the limit value of the limiting means in accordance with the comparison result of the comparing means, comparison result of the waste sensor with the comparison result of the comparing means, limiting value of the limiting means, and switching of the limiting means. A control unit for inputting a switching value and controlling electric power supplied to the motor. 【請求項４】 風量検出手段の検出結果と予め定めた第
２の基準値とを比較する第２比較手段と、ごみセンサの
検出値と第２比較手段の比較結果とを入力し、モータに
供給する電力を制御する第２制御手段とを備え、第２の
基準値以下の風量ではごみセンサの出力に応じたモータ
制御を行わないようにした請求項１〜３のいずれか１項
に記載の電気掃除機。4. A second comparison means for comparing a detection result of the air flow detection means with a predetermined second reference value, and a detection value of the dust sensor and a comparison result of the second comparison means are input to the motor. A second control means for controlling the supplied electric power, wherein the motor control according to the output of the dust sensor is not performed at an air volume less than the second reference value. Vacuum cleaner. 【請求項５】 ごみセンサの検出結果からごみ種を判断
するごみ種判断手段を備え、このごみ種判断手段の判断
結果から前記ごみセンサの検出値を補正し、モータに供
給する電力を制御するように構成した請求項１〜４のい
ずれか１項に記載の電気掃除機。5. A refuse type determining means for determining a refuse type from a detection result of the refuse sensor, correcting a detection value of the refuse sensor from the determination result of the refuse type determination means, and controlling electric power supplied to the motor. The vacuum cleaner according to any one of claims 1 to 4, configured as described above. 【請求項６】 吸引力を発生させるモータと、吸引時の
塵埃通過経路を通過するごみを検出するごみセンサと、
前記塵埃通過経路を通過するごみの通過速度を検知する
速度検知手段と、前記ごみセンサの検出結果と速度検知
手段の検知結果から前記モータに供給する電力を制御す
る制御手段とを有してなる電気掃除機。6. A motor that generates a suction force, a dust sensor that detects dust passing through a dust passage at the time of suction, and
Speed detecting means for detecting a passing speed of dust passing through the dust passage path; and control means for controlling electric power supplied to the motor based on a detection result of the dust sensor and a detection result of the speed detecting means. Vacuum cleaner. 【請求項７】 速度検知手段をモータに供給する電力を
設定する操作手段で構成してなる請求項６記載の電気掃
除機。7. The vacuum cleaner according to claim 6, wherein the speed detecting means is constituted by operating means for setting electric power to be supplied to the motor. 【請求項８】 速度検知手段をモータの回転数、真空
圧、電流値などより間接的に風量を検知する風量検知手
段で構成してなる請求項６記載の電気掃除機。8. The vacuum cleaner according to claim 6, wherein the speed detecting means is constituted by an air flow detecting means for indirectly detecting an air flow based on a rotation speed of the motor, a vacuum pressure, a current value and the like. 【請求項９】 ごみセンサを発光素子と受光素子とで構
成し、速度検知手段の検知結果に応じて発光素子、受光
素子の発光量、受光量の少なくとも一方を可変してなる
請求項６〜８のいずれか１項記載の電気掃除機。9. A dust sensor comprising a light emitting element and a light receiving element, wherein at least one of a light emitting element, a light emitting amount and a light receiving amount of the light emitting element is variable according to a detection result of the speed detecting means. The vacuum cleaner according to any one of claims 8 to 13.
JP11184937A 1999-06-30 1999-06-30 Vacuum cleaner Withdrawn JP2001008871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11184937A JP2001008871A (en) 1999-06-30 1999-06-30 Vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11184937A JP2001008871A (en) 1999-06-30 1999-06-30 Vacuum cleaner

Publications (1)

Publication Number Publication Date
JP2001008871A true JP2001008871A (en) 2001-01-16

Family

ID=16161971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11184937A Withdrawn JP2001008871A (en) 1999-06-30 1999-06-30 Vacuum cleaner

Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008035885A (en) * 2006-08-01 2008-02-21 Matsushita Electric Ind Co Ltd Vacuum cleaner
JP2011194145A (en) * 2010-03-23 2011-10-06 Toshiba Corp Vacuum cleaner
RU2486858C1 (en) * 2010-10-29 2013-07-10 Кабусики Кайся Тосиба Electric vacuum cleaner
JP2014108301A (en) * 2012-12-04 2014-06-12 Mitsubishi Electric Corp Vacuum cleaner
CN105182974A (en) * 2015-09-16 2015-12-23 江苏拓新天机器人科技有限公司 Intelligent path-finding method of sweeping robot

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008035885A (en) * 2006-08-01 2008-02-21 Matsushita Electric Ind Co Ltd Vacuum cleaner
JP2011194145A (en) * 2010-03-23 2011-10-06 Toshiba Corp Vacuum cleaner
RU2486858C1 (en) * 2010-10-29 2013-07-10 Кабусики Кайся Тосиба Electric vacuum cleaner
JP2014108301A (en) * 2012-12-04 2014-06-12 Mitsubishi Electric Corp Vacuum cleaner
CN105182974A (en) * 2015-09-16 2015-12-23 江苏拓新天机器人科技有限公司 Intelligent path-finding method of sweeping robot
CN105182974B (en) * 2015-09-16 2018-07-31 江苏拓新天机器人科技有限公司 A kind of intelligent method for searching of sweeping robot

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