JPS6359694B2 - - Google Patents
Info
- Publication number
- JPS6359694B2 JPS6359694B2 JP56112439A JP11243981A JPS6359694B2 JP S6359694 B2 JPS6359694 B2 JP S6359694B2 JP 56112439 A JP56112439 A JP 56112439A JP 11243981 A JP11243981 A JP 11243981A JP S6359694 B2 JPS6359694 B2 JP S6359694B2
- Authority
- JP
- Japan
- Prior art keywords
- input power
- control circuit
- electric blower
- power control
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Electric Vacuum Cleaner (AREA)
Description
【発明の詳細な説明】
本発明は必要以上の入力電力を電動送風機に流
さない省エネルギー型の電気掃除機に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an energy-saving vacuum cleaner that does not allow more than necessary input power to be passed to an electric blower.
従来第１図に示す如く電動送風機１００とこの
電動送風機の入力電力制御回路１０１、および、
同入力電力制御回路１０１の制御端子に接続され
増巾器１０２、そして空気流路内に設けられ、増
巾器１０２の入力端子に接続された風量センサ１
０３を有する電気掃除機があつた。上記入力電力
制御回路１０１は、例えば、電動送風機１００と
直列に位相制御用サイリスタを接続し、このサイ
リスタの導通角を変化させるトリガ回路に増幅器
１０２の出力側を接続したものである。この電気
掃除機の風量Ｑと真空度Ｐの特性は第２図に示す
ごとく、電動送風機のみを電源に接続した場合の
特性を１０４とすると、電動送風機１００に入力
電力制御回路１０１及びこの入力端子に風量セン
サ１０３の出力を増巾器１０２で増巾して与えた
場合の特性は１０５のようになる。これは床ノズ
ルを床から離したときには電動送風機の入力電力
が抑えられ、床ノズルを床につけたときは風量が
低下するので、入力電力を増加させて、風量の低
下を防ぐようにし、掃除性能を低下させないよう
にするものである。そして使用者が床から床ノズ
ルを離したり、あるいは板の間などを掃除すると
きには消費電力を減少しようとするものである。 Conventionally, as shown in FIG. 1, an electric blower 100, an input power control circuit 101 for the electric blower, and
An amplifier 102 is connected to the control terminal of the input power control circuit 101, and an air volume sensor 1 is provided in the air flow path and connected to the input terminal of the amplifier 102.
There was a vacuum cleaner with 03. The input power control circuit 101 has, for example, a phase control thyristor connected in series with the electric blower 100, and the output side of the amplifier 102 connected to a trigger circuit that changes the conduction angle of the thyristor. The characteristics of the air volume Q and degree of vacuum P of this vacuum cleaner are as shown in FIG. When the output of the airflow sensor 103 is amplified by the amplifier 102 and given, the characteristic becomes as shown in 105. This is because when the floor nozzle is removed from the floor, the input power of the electric blower is suppressed, and when the floor nozzle is attached to the floor, the air volume decreases, so the input power is increased to prevent the air volume from decreasing, and the cleaning performance is increased. This is to prevent this from decreasing. The purpose is to reduce power consumption when the user moves the floor nozzle away from the floor or when cleaning between boards.
しかしながら、このような構成の電気掃除機は
床ノズルあるいはホースの先を密閉して電動送風
機の入力電力を最大にするように制御回路が働く
が、その時にホースの先や床ノズルを開放にする
と急に空気が最大量流れ、風量センサが働いて、
入力電力制御回路が電源を切つてしまう。そこで
電動送風機の回転が低下し、風量が低下してく
る。そうすると入力電力制御回路が徐々に電流を
流すようになる。ところが、入力電力制御回路が
電流を切ると電動送風機への通電が切られるわけ
であるから、電動送風機の「うなり音」が消え
る。そして次に通電されるときにまた「うなり
音」が発生する。したがつて使用者は「うなり
音」の断続が聞えるわけであるから非常に不快感
を感じる。 However, in vacuum cleaners with this type of configuration, the control circuit works to maximize the input power of the electric blower by sealing the floor nozzle or the end of the hose, but if the end of the hose or floor nozzle is opened at that time, The maximum amount of air suddenly flows, and the airflow sensor is activated.
The input power control circuit turns off the power. Therefore, the rotation of the electric blower decreases, and the air volume decreases. Then, the input power control circuit gradually allows current to flow. However, when the input power control circuit turns off the current, the power to the electric blower is cut off, so the "buzzing sound" of the electric blower disappears. Then, the next time the power is turned on, the "whirring sound" occurs again. Therefore, the user feels very uncomfortable because he/she hears the intermittent "whining" sound.
本発明は上記従来の欠点を解消せんとするもの
で、以下に図面にもとづいてその実施例を説明す
る。 The present invention aims to solve the above-mentioned conventional drawbacks, and embodiments thereof will be described below based on the drawings.
第３図において、１は電気掃除機の本体ケー
ス、２はフイルタで、その後方に電動送風機３が
設けてある。４はホース、５は本体ケース１とホ
ース４を接続する接続パイプである。ホース４か
ら吸引された空気とゴミはフイルタ２でゴミを分
離し、排気口６より空気が排出される。７は風量
センサで、本実施例では電動送風機３の前方とフ
イルタ２の後方との間に設けてあるが、空気流路
内ならどの位置でも可能である。風量センサ７の
出力は第４図に示す如く増巾器８の入力端子に接
続され、この増巾器８の出力はダイオード９を介
して電動送風機３の入力電力制御回路１０の入力
端子に接続されている。また入力電力制御回路１
０の入力端子には別に抵抗１１を介して基準電圧
源１２が接続されている。 In FIG. 3, 1 is a main body case of the vacuum cleaner, 2 is a filter, and an electric blower 3 is provided behind it. 4 is a hose, and 5 is a connecting pipe that connects the main body case 1 and the hose 4. Air and dust sucked through a hose 4 are separated by a filter 2, and the air is discharged from an exhaust port 6. Reference numeral 7 denotes an air volume sensor, which is provided between the front of the electric blower 3 and the rear of the filter 2 in this embodiment, but it can be placed at any position within the air flow path. The output of the airflow sensor 7 is connected to the input terminal of an amplifier 8 as shown in FIG. 4, and the output of the amplifier 8 is connected to the input terminal of the input power control circuit 10 of the electric blower 3 via a diode 9. has been done. In addition, input power control circuit 1
A reference voltage source 12 is separately connected to the input terminal 0 via a resistor 11.
上記構成において、入力電力制御回路１０の入
力電圧Ｖと、電動送風機３の入力電力Ｗの関係は
第５図１３に示すように入力電圧に応じて入力電
力が増加するようになつている。ここで、第４図
に示すように、入力電力制御回路１０の入力端子
に抵抗１１を介して基準電圧源１２を接続したの
で、増巾器８の出力電圧と入力電力の関係は第６
図に示す１４の如く最低入力がＡ（Ｗ）になる。
すなわち増巾器８の出力が０になつても入力電力
制御回路１０の入力端子には抵抗１１を介して電
圧が与えられるので、入力電力はその電圧分の入
力電力Ａ（Ｗ）があるわけである。増巾器８の出
力が上昇するとダイオード９を介してこの増巾器
８の出力電圧が入力電力制御回路１０の入力端子
に与えられるので、入力電力が上昇する。 In the above configuration, the relationship between the input voltage V of the input power control circuit 10 and the input power W of the electric blower 3 is such that the input power increases according to the input voltage, as shown in FIG. 5 and 13. Here, as shown in FIG. 4, since the reference voltage source 12 is connected to the input terminal of the input power control circuit 10 via the resistor 11, the relationship between the output voltage of the amplifier 8 and the input power is as follows.
As shown in 14 in the figure, the lowest input is A(W).
In other words, even if the output of the amplifier 8 becomes 0, a voltage is applied to the input terminal of the input power control circuit 10 via the resistor 11, so there is an input power A (W) equivalent to that voltage. It is. When the output of the amplifier 8 increases, the output voltage of the amplifier 8 is applied to the input terminal of the input power control circuit 10 via the diode 9, so that the input power increases.
このように増巾器８の出力が０になつても、入
力電力Ａ（Ｗ）が残り電動送風機３は停止しない
ので、電動送風機３の「うなり音」の断続はなく
なる。 In this way, even if the output of the amplifier 8 becomes 0, the input power A (W) remains and the electric blower 3 does not stop, so the intermittent "beating sound" of the electric blower 3 disappears.
このように本発明によれば、入力電力制御回路
の入力端子に常に最低入力を与える信号を入力す
ることによつて、入力電力が０になることはな
く、その結果「うなり音」の断続はなく、使用者
の不快感をとり除くことができ、使用性の良好な
電気掃除機を提供することができるものである。 As described above, according to the present invention, by inputting a signal that always provides the minimum input to the input terminal of the input power control circuit, the input power never becomes 0, and as a result, the intermittent "beating sound" is prevented. Therefore, it is possible to provide a vacuum cleaner that is easy to use, eliminates user discomfort, and is easy to use.
第１図は従来の電気掃除機の制御回路図、第２
図は従来の風量−真空度特性図、第３図は本発明
の実施例を示す電気掃除機の概略断面図、第４図
はその制御回路図、第５図は入力電力制御回路の
特性図、第６図は増巾器の出力に対する入力電力
特性図である。
３……電動送風機、７……風量センサ、８……
増巾器、９……ダイオード、１０……入力電力制
御回路、１１……抵抗、１２……基準電圧源。
Figure 1 is a control circuit diagram of a conventional vacuum cleaner, Figure 2 is a control circuit diagram of a conventional vacuum cleaner.
The figure is a conventional air volume-vacuum characteristic diagram, Figure 3 is a schematic sectional view of a vacuum cleaner showing an embodiment of the present invention, Figure 4 is its control circuit diagram, and Figure 5 is a characteristic diagram of the input power control circuit. , FIG. 6 is a diagram showing the input power characteristics with respect to the output of the amplifier. 3...Electric blower, 7...Air volume sensor, 8...
Amplifier, 9... Diode, 10... Input power control circuit, 11... Resistor, 12... Reference voltage source.
Claims (1)
制御回路を接続し、この入力電力制御回路の入力
端子には風量センサの信号を増幅器およびダイオ
ードを介して接続するとともに、さらに入力電力
制御回路の入力端子には、最低入力を決定する基
準電圧源を抵抗を介して別に接続した電気掃除
機。1 Connect the input power control circuit of the electric blower in series with the electric blower, connect the signal of the airflow sensor to the input terminal of this input power control circuit via an amplifier and diode, and also connect the input power control circuit to the input terminal of the electric blower. A vacuum cleaner with a reference voltage source that determines the minimum input connected to the terminal via a resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56112439A JPS5815832A (en) | 1981-07-17 | 1981-07-17 | vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56112439A JPS5815832A (en) | 1981-07-17 | 1981-07-17 | vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5815832A JPS5815832A (en) | 1983-01-29 |
| JPS6359694B2 true JPS6359694B2 (en) | 1988-11-21 |
Family
ID=14586652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56112439A Granted JPS5815832A (en) | 1981-07-17 | 1981-07-17 | vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815832A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0685757B2 (en) * | 1987-10-16 | 1994-11-02 | 松下電器産業株式会社 | Vacuum cleaner |
| JPH0685756B2 (en) * | 1987-10-16 | 1994-11-02 | 松下電器産業株式会社 | Vacuum cleaner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136027A (en) * | 1979-04-11 | 1980-10-23 | Hitachi Ltd | Vacuum cleaner |
| JPS55143123A (en) * | 1979-04-27 | 1980-11-08 | Tokyo Electric Co Ltd | Vacuum cleaner |
-
1981
- 1981-07-17 JP JP56112439A patent/JPS5815832A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5815832A (en) | 1983-01-29 |
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