JP2830384B2 - Electric vacuum cleaner - Google Patents
Electric vacuum cleanerInfo
- Publication number
- JP2830384B2 JP2830384B2 JP14826690A JP14826690A JP2830384B2 JP 2830384 B2 JP2830384 B2 JP 2830384B2 JP 14826690 A JP14826690 A JP 14826690A JP 14826690 A JP14826690 A JP 14826690A JP 2830384 B2 JP2830384 B2 JP 2830384B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power supply
- suction force
- fan motor
- unit
- 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 - Lifetime
Links
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- Electric Vacuum Cleaner (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は吸込力設定部によりファンモータの吸込力を
設定できる電気掃除機に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner capable of setting a suction force of a fan motor by a suction force setting unit.
従来の技術 近年、電気掃除機は手元把手部に設けた吸込力設定部
によりファンモータの吸込力を設定、調整できるものが
主流となってきている。2. Description of the Related Art In recent years, vacuum cleaners that can set and adjust the suction force of a fan motor by a suction force setting unit provided on a hand grip have become mainstream.
従来、この種の電気掃除機は第３図および第４図に示
すような構成が一般的であった。以下、その構成と動作
について説明する。Conventionally, this type of vacuum cleaner generally has a configuration as shown in FIG. 3 and FIG. Hereinafter, the configuration and operation will be described.
図に示すように、手元スイッチ１はホース２の先端に
設けており、このホース２に接続したエルボ３を本体４
に設置した吸気口５に差込み、延長管6,7を介して床ノ
ズル８をホース２と接続し、電源コード９をコンセント
に差込んで手元スイッチ１をオンにすると、本体４に内
蔵されたファンモータ10が回転することにより、床ノズ
ル８、ホース２を介して本体４に塵埃を吸引する。As shown in the figure, a hand switch 1 is provided at a tip of a hose 2 and an elbow 3 connected to the hose 2 is connected to a main body 4.
When the floor nozzle 8 is connected to the hose 2 via the extension pipes 6 and 7 and the power cord 9 is plugged into the outlet and the hand switch 1 is turned on, it is built into the main body 4. When the fan motor 10 rotates, dust is sucked into the main body 4 through the floor nozzle 8 and the hose 2.
吸込力設定部11は可変抵抗器により構成し、ファンモ
ータ10の吸込力を設定する。ZVP部12は交流電源13の0V
電圧を検知するもので、トランジスタ14により0V付近で
のみ第５図（ａ）のような一定電圧を出力する。ZVP部1
2の出力は反転器15にて反転され、ファンモータ10の導
通角を与える導通角制御部16に入力している。この導通
角制御部16では、吸込力設定部11とコンデンサ17による
充電電位を基準電位を比較し、比較器18より第５図
（ｂ）のような出力を出す。通常はコンデンサ17の充電
電位は低いため、比較器18は“L"レベルとなっている。
しかし、充電されてその電位が比較器18の一側の入力電
位より高くなると、比較器18の出力は“H"レベルとなっ
てトランジスタ19を駆動してファンモータ10が回転す
る。同時にトランジスタ20によりコンデンサ17の電荷は
放電される。コンデンサ17の電荷は反転器15の出力によ
っても放電され、それは交流電源電圧が0Vのときであ
る。The suction force setting unit 11 is configured by a variable resistor, and sets the suction force of the fan motor 10. ZVP unit 12 is 0V of AC power supply 13.
A voltage is detected, and a constant voltage as shown in FIG. ZVP section 1
The output of 2 is inverted by an inverter 15 and is input to a conduction angle control unit 16 that gives a conduction angle of the fan motor 10. The conduction angle control section 16 compares the charging potential of the suction force setting section 11 and the charging potential of the capacitor 17 with a reference potential, and outputs an output as shown in FIG. Normally, since the charged potential of the capacitor 17 is low, the comparator 18 is at the “L” level.
However, when the battery is charged and its potential becomes higher than the input potential on one side of the comparator 18, the output of the comparator 18 becomes "H" level and drives the transistor 19 to rotate the fan motor 10. At the same time, the charge of the capacitor 17 is discharged by the transistor 20. The charge of the capacitor 17 is also discharged by the output of the inverter 15 when the AC power supply voltage is 0V.
吸込力設定部11の設定を吸込力が弱くなるように設定
すれば、コンデンサ17の充電時間が長くなり、逆に吸込
力が強くなるように設定すれば充電時間が短くなり、フ
ァンモータ10に印加される電圧は第５図（ｃ）のように
なり、ファンモータ10の吸込力を調整できる。このよう
にして、吸込力を手元把手部にて行なえるため手軽に快
適な掃除を行なうことができる。If the suction force setting unit 11 is set so that the suction force is weakened, the charging time of the capacitor 17 is prolonged, and if the suction force is set to be strong, the charging time is short, and the fan motor 10 The applied voltage is as shown in FIG. 5 (c), and the suction force of the fan motor 10 can be adjusted. In this manner, the suction force can be performed by the hand grip, so that comfortable cleaning can be easily performed.
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、様々な家電機器の
消費電力の増加などによって家庭用コンセントに供給さ
れている電圧が変動したとき、高電圧の場合にはファン
モータ10に印加される電圧は第５図（ｃ）の一点鎖線で
示す電圧になり、低電圧の場合には実線に示すような電
圧になってファンモータ10の消費電力が大きく変動して
しまい、吸込力が安定しないという課題があった。SUMMARY OF THE INVENTION In such a conventional vacuum cleaner, when a voltage supplied to a household outlet fluctuates due to an increase in power consumption of various home appliances, a fan motor is used in a case of a high voltage. The voltage applied to 10 becomes the voltage shown by the dashed line in FIG. 5 (c), and if the voltage is low, it becomes the voltage shown by the solid line, and the power consumption of the fan motor 10 greatly fluctuates. There was a problem that the suction force was not stable.
本発明は上記課題を解決するもので、電源電圧が大き
く変動した場合にもファンモータの吸込力をほぼ一定に
することを目的としている。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problem, and to make the suction force of the fan motor substantially constant even when the power supply voltage fluctuates greatly.
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、ファンモータの
吸込力を設定する吸込力設定部と、交流電源の0V電圧を
検知するZVP部と、前記吸込力設定部とZVP部の出力によ
り前記ファンモータの印加電圧の導通角を制御する導通
角制御部と、交流電源電圧に比例した電圧を出力する非
安定化電源電圧部とを備え、前記導通角制御部はファン
モータの印加電圧の導通角を前記非安定化電源電圧部の
出力により補正するようにしたことを課題解決手段とし
ている。Means for Solving the ProblemsIn order to achieve the above object, the present invention provides a suction force setting unit that sets a suction force of a fan motor, a ZVP unit that detects a 0 V voltage of an AC power supply, and the suction force setting unit. A conduction angle control unit that controls a conduction angle of an applied voltage of the fan motor based on an output of the ZVP unit; and an unstabilized power supply voltage unit that outputs a voltage proportional to an AC power supply voltage. The problem solving means is that the conduction angle of the voltage applied to the motor is corrected by the output of the unstabilized power supply voltage section.
作用 本発明は上記した課題解決手段により、ファンモータ
の印加電圧の導通角を制御する導通角制御部を交流電源
電圧に応じた導通角に補正することができ、電源電圧が
変動してもファンモータの吸込力をほぼ一定にできる。According to the present invention, the conduction angle control unit that controls the conduction angle of the voltage applied to the fan motor can be corrected to the conduction angle corresponding to the AC power supply voltage by the above-described problem solving means. The suction force of the motor can be made substantially constant.
実 施 例 以下、本発明の一実施例について第１図を参照しなが
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 An embodiment of the present invention will be described below 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.
図に示すように、非安定化電源電圧部21は交流電源13
の電圧に比例した電圧を出力するもので、導通角制御部
16の比較器18の基準電圧を非安定化電源電圧部21の電圧
を抵抗22,23で分圧して得ている。As shown, the unstabilized power supply voltage section 21 is
It outputs a voltage proportional to the voltage of
The reference voltage of the 16 comparators 18 is obtained by dividing the voltage of the unstabilized power supply voltage section 21 by the resistors 22 and 23.
上記構成において第２図（ａ）〜（ｅ）を参照しなが
ら動作を説明すると、非安定化電源電圧部21は交流電圧
をダイオード24で半波整流し、ツェナーダイオード25に
て定電圧電源を構成しようとするが、抵抗26によりＡ点
の電圧VAは、ツェナーダイオード25のツェナー電圧V
Zに、抵抗26に流れる電流×抵抗値の値を加えたもので
ある。つまり、抵抗26の抵抗値をＲ、流れる電流をｉ、
ツェナー電圧をVZとすると、 VA＝VZ＋iR となる。ここで、流れる電流は交流電源13の電圧が低い
と少なく、高いと多くなるので、VAは電源電圧に比例す
る。The operation of the above configuration will be described with reference to FIGS. 2A to 2E. The non-stabilized power supply voltage section 21 rectifies half-wave rectified AC voltage by a diode 24 and supplies a constant voltage power supply by a Zener diode 25. The voltage VA at the point A is set by the resistor 26 so that the Zener voltage V
It is obtained by adding Z to the value of (current flowing through resistor 26) × (resistance value). That is, the resistance value of the resistor 26 is R, the flowing current is i,
Assuming that the Zener voltage is V Z , V A = V Z + iR. Here, the flowing current is small when the voltage of the AC power supply 13 is low and increases when the voltage is high, so that VA is proportional to the power supply voltage.
この電圧VAを抵抗22,23で分圧した基準電圧VBも交流
電源13の電圧に比例した値となり、この基準電圧VBとコ
ンデンサ17の充電電位とが比較器18にて比較される。コ
ンデンサ17の充電電位は吸込力設定部11との時定数によ
り充電されてくる。一方、基準電圧VBは交流電源13の電
圧が低いと低く、高いと高いため、交流電源13の電圧が
低いと、コンデンサ17の充電時間は短くなり、逆に高い
と長くなる。そのため、比較器18の出力が“L"レベルか
ら“H"レベルになるまでの時間は交流電源13の電圧の高
低により異なってくる。すなわち、ZVP部12から0V信号
が出力されて、ファンモータ10が駆動されるまでの時間
は交流電源13の電圧によって変化する。そこで、抵抗2
2,23の設定を適切にすれば、ファンモータ10の吸込力は
交流電源電圧に依らず一定に設定することができる。な
お、比較器18の出力が"H・になるとトランジスタ20もオ
ンするためコンデンサ17の電荷は放電される。Reference voltage V B obtained by dividing the voltage V A at resistors 22 and 23 becomes a value proportional to the voltage of the AC power supply 13, a charging potential of the reference voltage V B and the capacitor 17 are compared in the comparator 18 . The charged potential of the capacitor 17 is charged by the time constant with the suction force setting unit 11. On the other hand, the reference voltage V B is low and a low voltage of the AC power supply 13 is higher when the order higher, the voltage of the AC power supply 13 is low, the charging time of the capacitor 17 is shortened, high and longer reversed. Therefore, the time required for the output of the comparator 18 to change from “L” level to “H” level differs depending on the level of the voltage of the AC power supply 13. That is, the time from when the 0V signal is output from the ZVP unit 12 to when the fan motor 10 is driven varies depending on the voltage of the AC power supply 13. So resistance 2
If the settings of 2, 23 are properly set, the suction force of the fan motor 10 can be set to be constant regardless of the AC power supply voltage. When the output of the comparator 18 becomes “H”, the transistor 20 is also turned on, so that the electric charge of the capacitor 17 is discharged.
発明の効果 以上の実施例から明らかなように本発明によれば、導
通角制御部はファンモータの印加電圧の導通角を非安定
化電源電圧部の出力により補正するようにしたから、吸
込力設定部の設定が一定であっても、交流電源電圧の変
動によってファンモータの印加電圧の導通角を制御で
き、一定の吸込力を得ることができる。Effect of the Invention As is clear from the above embodiments, according to the present invention, the conduction angle control unit corrects the conduction angle of the applied voltage of the fan motor by the output of the unstabilized power supply voltage unit. Even if the setting of the setting unit is constant, the conduction angle of the voltage applied to the fan motor can be controlled by the fluctuation of the AC power supply voltage, and a constant suction force can be obtained.
第１図は本発明の一実施例の電気掃除機の回路図、第２
図（ａ）〜（ｅ）は同電気掃除機の動作説明図、第３図
は従来の電気掃除機の斜視図、第４図は同電気掃除機の
回路図、第５図（ａ）〜（ｃ）は同電気掃除機の動作説
明図である。 10……ファンモータ、11……吸込力設定部、12……ZVP
部、13……交流電源、16……導通角制御部、21……非安
定化電源電圧部。FIG. 1 is a circuit diagram of a vacuum cleaner according to an embodiment of the present invention, and FIG.
(A) to (e) are explanatory diagrams of the operation of the vacuum cleaner, FIG. 3 is a perspective view of the conventional vacuum cleaner, FIG. 4 is a circuit diagram of the vacuum cleaner, and FIGS. (C) is an operation explanatory view of the electric vacuum cleaner. 10: Fan motor, 11: Suction force setting unit, 12: ZVP
, 13 ... AC power supply, 16 ... Conduction angle control unit, 21 ... Unstabilized power supply voltage unit.
Claims (1)
定部と、交流電源の0V電圧を検知するZVP部と、前記吸
込力設定部とZVP部の出力により前記ファンモータの印
加電圧の導通角を制御する導通角制御部と、交流電源電
圧に比例した電圧を出力する非安定化電源電圧部とを備
え、前記導通角制御部はファンモータの印加電圧の導通
角を前記非安定化電源電圧部の出力により補正するよう
にしてなる電気掃除機。1. A suction force setting unit for setting a suction force of a fan motor, a ZVP unit for detecting a 0V voltage of an AC power supply, and conduction of a voltage applied to the fan motor by outputs of the suction force setting unit and the ZVP unit. A conduction angle control unit for controlling an angle, and an unstabilized power supply voltage unit for outputting a voltage proportional to an AC power supply voltage, wherein the conduction angle control unit sets a conduction angle of a voltage applied to a fan motor to the unstabilized power supply. Vacuum cleaner that compensates by the output of the voltage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14826690A JP2830384B2 (en) | 1990-06-05 | 1990-06-05 | Electric vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14826690A JP2830384B2 (en) | 1990-06-05 | 1990-06-05 | Electric vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0440930A JPH0440930A (en) | 1992-02-12 |
| JP2830384B2 true JP2830384B2 (en) | 1998-12-02 |
Family
ID=15448928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14826690A Expired - Lifetime JP2830384B2 (en) | 1990-06-05 | 1990-06-05 | Electric vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2830384B2 (en) |
-
1990
- 1990-06-05 JP JP14826690A patent/JP2830384B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0440930A (en) | 1992-02-12 |
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