JP2010142398A - Vacuum cleaner - Google Patents

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JP2010142398A
JP2010142398A JP2008322146A JP2008322146A JP2010142398A JP 2010142398 A JP2010142398 A JP 2010142398A JP 2008322146 A JP2008322146 A JP 2008322146A JP 2008322146 A JP2008322146 A JP 2008322146A JP 2010142398 A JP2010142398 A JP 2010142398A
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voltage
electric blower
control means
phase
vacuum cleaner
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JP5309957B2 (en
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Toshiaki Fujiwara
俊明 藤原
Hiroyuki Senoo
裕之 妹尾
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Panasonic Corp
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Panasonic Corp
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner which has a simple and inexpensive structure and has a power voltage detection function. <P>SOLUTION: The vacuum cleaner includes: an electric blower 1 for sucking dust; an electric blower control means 2 for controlling the electric blower 1; a control means 3 for outputting an electric signal of the electric blower 1; a signal transmission means 4 for transmitting a signal from the control means 3 to the electric blower control means 2; and a voltage generation means 5 which uses an insulation voltage converter 6 for insulating the control means 3 from a primary side power supply and giving it operation voltage. A phase difference between a secondary side voltage phase and a primary side voltage phase of the insulation voltage converter 6 changes as the primary side power voltage changes, so that power voltage fluctuation can be detected by a very simple inexpensive circuit, and when the power voltage is boosted, power of the vacuum cleaner decreases or stops operating. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、所定の電源電圧以上で電動送風機の電力を低下または停止させる機能を有する電気掃除機の構成に関するものである。   The present invention relates to a configuration of a vacuum cleaner having a function of reducing or stopping electric power of an electric blower at a predetermined power supply voltage or higher.

従来の電気掃除機としては、一般的に図４に示すような床移動型（キャニスター型）の電気掃除機が多く普及しており、掃除機本体２１内に配置された電動送風機２２の入力を、掃除機本体２１の吸気口２９に着脱自在に接続されるホース２４の手元部２５に設けられた操作手段２６を操作することにより、掃除機本体２１内の制御手段（図示せず）を介して電動送風機２２の入力を任意に設定できるようになっている。   As a conventional vacuum cleaner, generally, a floor moving type (canister type) vacuum cleaner as shown in FIG. 4 is widely used, and an input of an electric blower 22 arranged in the cleaner body 21 is used. By operating the operating means 26 provided in the hand portion 25 of the hose 24 that is detachably connected to the air inlet 29 of the cleaner body 21, the control means (not shown) in the cleaner body 21 is used. Thus, the input of the electric blower 22 can be arbitrarily set.

操作手段２６と掃除機本体２１とは、この吸気口２９に設けたれた接続端子（図示せず）とホース２４に設けられた接続端子（図示せず）で電気的に接続されている。なお、手元部２５には延長管２７が接続され、延長管２７の先端には塵埃を吸引するための床ノズル２８が備えられている。   The operation means 26 and the cleaner body 21 are electrically connected by a connection terminal (not shown) provided at the intake port 29 and a connection terminal (not shown) provided at the hose 24. An extension tube 27 is connected to the hand portion 25, and a floor nozzle 28 for sucking dust is provided at the tip of the extension tube 27.

また、掃除機本体２１内の電動送風機２２の上流には、集塵室３０が設けられており、この集塵室３０内に多量の集塵が堆積してくると、ホース２４の手元部２５に設けた表示手段３１に多量の塵埃が堆積していることを表示するようになっている。   In addition, a dust collection chamber 30 is provided upstream of the electric blower 22 in the vacuum cleaner main body 21, and when a large amount of dust is accumulated in the dust collection chamber 30, the hand portion 25 of the hose 24. It is displayed that a large amount of dust is accumulated on the display means 31 provided in the above.

そして、このような電動送風機の入力を制御したり、表示を行うための回路が提案されている（例えば、特許文献１参照）。   And the circuit for controlling the input of such an electric blower or performing a display is proposed (for example, refer to patent documents 1).

上記特許文献１の図３に示された回路の場合、接続端子間（端子Ｃ、Ｄ間）の電圧がホース２４の手元部２４ａに印加されることになるが、この電圧は、絶縁変圧器１０６により絶縁されているため、仮にホース２４が破れて内蔵されている内部の電線に人が触れても感電する恐れがないように構成されている。
特許第２９３０１１６号公報 In the case of the circuit shown in FIG. 3 of Patent Document 1, a voltage between the connection terminals (between terminals C and D) is applied to the proximal portion 24a of the hose 24. This voltage is an insulation transformer. Since it is insulated by 106, it is configured so that there is no risk of electric shock even if a person touches the internal electric wire that is broken when the hose 24 is broken.
Japanese Patent No. 2930116

しかしながら、このような従来の電気掃除機の構成では、電源電圧の変動を検知しようとすると、絶縁変圧器１０６の出力電圧にて検知する方法が考えられるが、電源電圧の変動を適切に検知することは、下記理由により困難であった。
ａ．絶縁変圧器の１０６の二次側出力電圧のバラツキ・・一般的には定格電圧±５％程度。
ｂ．絶縁変圧器１０６の二次側出力電流により、出力電圧が変化する。 However, in such a configuration of the conventional vacuum cleaner, a method of detecting the output voltage of the insulation transformer 106 can be considered to detect the change of the power supply voltage, but the change of the power supply voltage is appropriately detected. This was difficult for the following reasons.
a. Variation of the secondary output voltage of the insulation transformer 106 ・ Generally rated voltage ± 5%.
b. The output voltage changes due to the secondary output current of the isolation transformer 106.

したがって、絶縁変圧器１０６を用いて、電源電圧の変動を検知（或いは補正）しようとすれば、上記の調整回路やフィードバック回路が必要となり、高コストになるといった課題があった。   Therefore, if the insulation transformer 106 is used to detect (or correct) fluctuations in the power supply voltage, the adjustment circuit and the feedback circuit described above are required, resulting in a high cost.

本発明は、上記従来の課題を解決し、絶縁変圧器の二次側電圧位相と一次側電圧位相の位相差を利用して、簡単で安価な構成で電源電圧を検知することができる電気掃除機を提供することを目的とする。   The present invention solves the above-described conventional problems, and uses the phase difference between the secondary voltage phase and the primary voltage phase of the isolation transformer to detect the power supply voltage with a simple and inexpensive configuration. The purpose is to provide a machine.

前記従来の課題を解決するために、本発明の電気掃除機は、塵埃を吸引するための電動送風機と、前記電動送風機を制御する電動送風機制御手段と、前記電動送風機の電力信号を出力する制御手段と、前記制御手段からの信号を前記電動送風機制御手段に伝達する信号伝達手段と、前記制御手段を一次側電源から絶縁し動作電圧を与える絶縁変圧器を用いた電圧発生手段とを備え、その絶縁変圧器の二次側電圧位相と一次側電圧位相との位相差は、一次側電源電圧に応じて変化するもので、極めて簡単な低コスト回路で電源電圧変動の検知を行うことができ、また、電源電圧が高くなると電気掃除機の電力は低下したり運転を停止する。   In order to solve the conventional problems, the electric vacuum cleaner of the present invention includes an electric blower for sucking dust, an electric blower control means for controlling the electric blower, and a control for outputting a power signal of the electric blower. Means, a signal transmission means for transmitting a signal from the control means to the electric blower control means, and a voltage generation means using an insulation transformer that insulates the control means from a primary power source and gives an operating voltage, The phase difference between the secondary-side voltage phase and the primary-side voltage phase of the isolation transformer changes according to the primary-side power supply voltage, and power supply voltage fluctuations can be detected with a very simple low-cost circuit. In addition, when the power supply voltage increases, the electric power of the vacuum cleaner decreases or stops operation.

本発明の電気掃除機は、絶縁変圧器自身の二次側電圧位相と一次側電圧位相との位相差特性を利用しているため、電源電圧変動検知のための調整回路やフィードバック回路などの回路が必要となることもなく、極めて簡単な低コスト回路にて電源電圧変動の補正を行うことができる。   Since the vacuum cleaner of the present invention uses the phase difference characteristic between the secondary voltage phase and the primary voltage phase of the isolation transformer itself, circuits such as an adjustment circuit and a feedback circuit for detecting power supply voltage fluctuations Therefore, the power supply voltage fluctuation can be corrected with a very simple low-cost circuit.

第１の発明は、塵埃を吸引するための電動送風機と、前記電動送風機を制御する電動送風機制御手段と、前記電動送風機の電力信号を出力する制御手段と、前記制御手段からの信号を前記電動送風機制御手段に伝達する信号伝達手段と、前記制御手段を一次側電源から絶縁し動作電圧を与える絶縁変圧器を用いた電圧発生手段とを備え、その絶縁変圧器の二次側電圧位相と一次側電圧位相との位相差は、一次側電源電圧に応じて変化するもので、極めて簡単な低コスト回路で電源電圧変動の検知を行うことができ、また、電源電圧が高くなると電気掃除機の電力は低下したり運転を停止する。   The first invention is an electric blower for sucking dust, an electric blower control means for controlling the electric blower, a control means for outputting a power signal of the electric blower, and a signal from the control means as the electric blower. A signal transmission means for transmitting to the blower control means; and a voltage generation means using an insulation transformer that insulates the control means from the primary power supply and gives an operating voltage, and the secondary voltage phase and primary of the insulation transformer The phase difference with the side voltage phase changes according to the primary side power supply voltage, and it is possible to detect power supply voltage fluctuation with a very simple low-cost circuit. Electric power is reduced or operation is stopped.

第２の発明は、特に、第１の発明の電気掃除機において、ホースの端部に設けたホース手元部に、電動送風機の電力を設定する操作手段を設け、この操作手段の出力を制御手段に入力するようにしたもので、本体内での絶縁が確保されており、ホース自体の絶縁構造が特に問題になることはない。   According to a second aspect of the invention, in particular, in the electric vacuum cleaner of the first aspect of the present invention, an operating means for setting the electric power of the electric blower is provided at the hose handle provided at the end of the hose, and the output of the operating means is controlled by the control means. Insulation in the main body is ensured, and the insulation structure of the hose itself does not become a problem.

第３の発明は、特に、第１の発明の絶縁変圧器の二次側電圧位相は、一次側電圧位相よりも進み位相としたもので、電源電圧が高くなると制御手段からの出力信号は、狙いとする電圧波形よりも半サイクル前の位相で出力されることになり、電動送風機の電力は低下する。または無効信号となって運転されることはない。   In the third aspect of the invention, in particular, the secondary side voltage phase of the isolation transformer of the first aspect of the invention is a phase that is more advanced than the primary side voltage phase. When the power supply voltage increases, the output signal from the control means The power is output at a phase half a cycle before the target voltage waveform, and the electric blower power is reduced. Or it is not operated as an invalid signal.

第４の発明は、特に、第１〜３のいずれか一つの発明の制御手段からの出力信号は、電動送風機の設定電力によらず所定のパルス幅を有するパルス信号を出力する構成としたもので、一次側の電圧が異常に高くなり、二次側電圧位相と一次側電圧位相との位相差が大きくなった場合に、ゼロクロスを超えてパスル信号が出力されないように出来るので、電動送風機への電力供給を停止出来ると共に、位相制御絶縁変圧器の負荷は略一定、すなわち、絶縁変圧器の二次側電圧位相と一次側電圧位相との位相差は同一電源電圧では略一定となり、電源電圧変動に応じた位相差を確保することができる。   In the fourth aspect of the invention, in particular, the output signal from the control means of any one of the first to third aspects of the invention is configured to output a pulse signal having a predetermined pulse width regardless of the set power of the electric blower. Therefore, when the primary side voltage becomes abnormally high and the phase difference between the secondary side voltage phase and the primary side voltage phase becomes large, it is possible to prevent the pulse signal from being output beyond the zero crossing. The phase control isolation transformer load is substantially constant, that is, the phase difference between the secondary voltage phase and the primary voltage phase of the isolation transformer is substantially constant at the same power supply voltage. A phase difference corresponding to the fluctuation can be ensured.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は本発明の第１の実施の形態における電気掃除機の回路図、図２は、同電気掃除機の絶縁変圧器の一次〜二次電圧位相差例を示す図、図３（ａ）は、同電気掃除機の動作説明図（定格電圧２００Ｖ（及びこの定格電圧を挟む許容電圧範囲：例えば±１０％））、図３（ｂ）は、同電気掃除機の動作説明図（定格電圧２００Ｖよりも異常に高い電圧）である。 (Embodiment 1)
FIG. 1 is a circuit diagram of a vacuum cleaner according to a first embodiment of the present invention, FIG. 2 is a diagram showing an example of primary to secondary voltage phase differences of an insulation transformer of the vacuum cleaner, and FIG. Is an operation explanatory diagram of the electric vacuum cleaner (rated voltage 200 V (and allowable voltage range sandwiching the rated voltage: for example ± 10%)), FIG. 3B is an operational explanatory diagram of the electric vacuum cleaner (rated voltage) A voltage abnormally higher than 200V).

図１において、１は、塵埃を吸引するための電動送風機、２は、前記電動送風機１を制御する電動送風機制御手段であり双方向サイリスタで構成されている。３は、前記電動送風機１の電力信号を出力する制御手段、４は、前記制御手段３からの信号を前記電動送風機制御手段２に伝達する信号伝達手段である。５は、前記制御手段３に動作電圧を与える電圧発生手段であり、前記制御手段３を一次側電源から絶縁するために絶縁変圧器６を用いている。   In FIG. 1, 1 is an electric blower for sucking dust, and 2 is an electric blower control means for controlling the electric blower 1, which is constituted by a bidirectional thyristor. 3 is a control means for outputting a power signal of the electric blower 1, and 4 is a signal transmission means for transmitting a signal from the control means 3 to the electric blower control means 2. Reference numeral 5 denotes voltage generating means for applying an operating voltage to the control means 3, and an insulating transformer 6 is used to insulate the control means 3 from the primary power source.

７は、位相制御を行う基準時間であるゼロボルト電圧を検知するゼロボルト検知手段である。そして、これらの各手段は、ともに掃除機本体１０に内蔵されている。   Reference numeral 7 denotes zero volt detection means for detecting a zero volt voltage which is a reference time for performing phase control. Each of these means is built in the cleaner body 10.

１１は、一端が前記掃除機本体１０の吸気口部１０ａに装着されるホースであり、他端に使用者が操作するホース手元部１１ａが設けられ、そのホース手元部１１ａには、複数の常開型スイッチ１２ａから構成され、前記電動送風機１の入力を任意に設定するための操作手段１２が設けられている。   11 is a hose with one end attached to the air inlet 10a of the cleaner body 10, and a hose hand 11a that is operated by a user is provided at the other end. An operation switch 12 is provided which is configured by an open switch 12a and for arbitrarily setting the input of the electric blower 1.

本実施の形態では、制御手段３からの出力信号は、操作手段１２での電動送風機１の設定電力によらず略一定の７００μｓのパルス幅を有するパルス信号を出力するよう構成されているので、制御手段３の負荷電流は略一定である。   In the present embodiment, the output signal from the control means 3 is configured to output a pulse signal having a substantially constant 700 μs pulse width regardless of the set power of the electric blower 1 in the operation means 12. The load current of the control means 3 is substantially constant.

また、信号伝達手段４に、ＩＥＣ規格の要求を満たす光伝達素子（フォトカプラ）を用いている。   The signal transmission means 4 uses a light transmission element (photocoupler) that satisfies the requirements of the IEC standard.

同様に、絶縁変圧器６は、ＩＥＣ規格で規定された安全絶縁変圧器の機械的構造と電気的特性を有しており、これら信号伝達手段４と絶縁変圧器６により、特に、絶縁規定要求の厳しい欧州諸国でも、ホース１１に対して絶縁構造を要求されることはない。   Similarly, the insulation transformer 6 has the mechanical structure and electrical characteristics of a safety insulation transformer defined by the IEC standard, and the signal transmission means 4 and the insulation transformer 6 make it particularly necessary to provide insulation regulation requirements. Even in strict European countries, the hose 11 is not required to have an insulating structure.

前記構成において以下動作を説明するが、本実施の形態における絶縁変圧器６は、安全絶縁変圧器であると同時に、下記のような特性を有している。
ａ．二次（出力）側電圧位相は一次（入力）側電圧位相よりも進み位相である。
ｂ．二次（出力）側電圧位相と一次（入力）側電圧位相との位相差は、一次側電源電圧に応じて変化するもので、具体的には、一次側電源電圧が低ければ位相差は小さく、一次側電源電圧が高くなるにつれて位相差は大きくなる。 Although the operation will be described below in the above configuration, the insulation transformer 6 in the present embodiment is a safety insulation transformer and has the following characteristics.
a. The secondary (output) side voltage phase is more advanced than the primary (input) side voltage phase.
b. The phase difference between the secondary (output) side voltage phase and the primary (input) side voltage phase changes according to the primary side power supply voltage. Specifically, the phase difference is small if the primary side power supply voltage is low. The phase difference increases as the primary power supply voltage increases.

図２に、本実施の形態における絶縁変圧器６の一次電圧〜二次電圧位相特性を示す。（やや歪んだ波形が二次電圧波形である。）。   FIG. 2 shows the primary voltage to secondary voltage phase characteristics of the insulation transformer 6 in the present embodiment. (Slightly distorted waveform is the secondary voltage waveform.)

同図に示すように、定格電圧２００Ｖでは、二次電圧は一次電圧に対して５９０μｓ進み位相となっているが、定格８５％電圧（１７０Ｖ）では、４０６μｓの進み位相、定格１１５％電圧（２３０Ｖ）では８７０μｓの進み位相となっている。   As shown in the figure, at the rated voltage of 200 V, the secondary voltage has a phase advance of 590 μs relative to the primary voltage, but at the rated 85% voltage (170 V), the advanced phase of 406 μs and the rated 115% voltage (230 V ) Has a leading phase of 870 μs.

ここで制御手段３からの出力信号７００μｓをこの位相波形に重ねて考えると、以下のようになる（図３参照）。   Here, when the output signal 700 μs from the control means 3 is considered to be superimposed on this phase waveform, it is as follows (see FIG. 3).

本構成では、制御手段３やゼロボルト検知手段７は、絶縁変圧器６の二次側電圧波形にて動作している、すなわち進み電圧位相での動作を行っているわけなので、当然制御手段３の基準時間となる（二次側電圧の）０Ｖ点も進み位相となっている事を考慮して、以下考えると、
（１）定格電圧２００Ｖ（及びこの定格電圧を挟む許容電圧範囲：例えば±１０％）の場合
パルス幅７００μｓは、位相ズレよりも大きな値なので、電動送風機１の駆動信号は、パルス終了までには有効となる。すなわち、電動送風機１は駆動できる。 In the present configuration, the control means 3 and the zero volt detection means 7 are operating with the secondary side voltage waveform of the isolation transformer 6, that is, performing the operation in the advance voltage phase. Considering that the 0V point (secondary voltage) that is the reference time is also a leading phase,
(1) In case of rated voltage 200V (and allowable voltage range sandwiching this rated voltage: ± 10%, for example) The pulse width 700 μs is a value larger than the phase shift, so the drive signal of the electric blower 1 is It becomes effective. That is, the electric blower 1 can be driven.

（２）定格電圧２００Ｖよりも異常に高い電圧の場合
パルス幅７００μｓは、位相ズレよりも小さな値なので、図３（ｂ）のように、パルス終了時に、一次側電圧波形は、次のサイクルに到達していないため、電動送風機制御手段２を構成する双方向サイリスタを小位相でトリガすることとなるため、低電力での運転となる。（実験によると、電動送風機１の電流位相は電圧位相よりも遅れ位相となるので、電動送風機１は停止する。）すなわち、電動送風機１は高電力状態では駆動できない。 (2) When the voltage is abnormally higher than the rated voltage of 200V Since the pulse width 700 μs is a value smaller than the phase shift, as shown in FIG. 3B, at the end of the pulse, the primary voltage waveform is changed to the next cycle. Since it has not reached, the bidirectional thyristor constituting the electric blower control means 2 is triggered with a small phase, so that the operation is performed with low power. (According to experiments, the electric blower 1 stops because the current phase of the electric blower 1 is delayed from the voltage phase.) That is, the electric blower 1 cannot be driven in a high power state.

以上のように、本実施の形態によれば、絶縁変圧器自身の二次側電圧位相と一次側電圧位相との位相差特性を利用しているため、電源電圧変動検知のための調整回路やフィードバック回路などの回路が必要となることもなく、極めて簡単な低コスト回路にて電源電圧変動の補正を行うことができると共に、高電圧で、高入力設定の場合には、高速回転状態となる電動送風機１が高速運転することはなく、簡単な構成で危険な状態を回避できる。   As described above, according to the present embodiment, since the phase difference characteristic between the secondary side voltage phase and the primary side voltage phase of the isolation transformer itself is used, the adjustment circuit for detecting the power supply voltage fluctuation, A circuit such as a feedback circuit is not required, and power supply voltage fluctuations can be corrected with a very simple low-cost circuit. In addition, when high voltage and high input are set, high-speed rotation is achieved. The electric blower 1 does not operate at high speed, and a dangerous state can be avoided with a simple configuration.

なお、上記実施の形態では、電気掃除機を例に説明したが、一般の電気機器にも同様に適用することができる。   In the above embodiment, a vacuum cleaner has been described as an example.

その場合、負荷の電圧位相と電流位相との位相差特性に注意しなければならない。   In this case, attention must be paid to the phase difference characteristic between the voltage phase and current phase of the load.

例えば、本実施の形態のように、負荷が電動送風機１の場合には、電流位相は電圧位相よりも遅れ位相となるが、ヒータのような抵抗負荷の場合には、電流位相は電圧位相と同位相となるので、同一回路を用いると負荷が停止する電源電圧は低目になる。   For example, as in the present embodiment, when the load is the electric blower 1, the current phase is delayed from the voltage phase, but in the case of a resistive load such as a heater, the current phase is the voltage phase. Since the phase is the same, if the same circuit is used, the power supply voltage at which the load stops becomes low.

以上のように、本発明に係る電気掃除機は、絶縁変圧器自身の二次側電圧位相と一次側電圧位相との位相差特性を利用しているため、電源電圧変動検知のための調整回路やフィードバック回路などの回路が必要となることもなく、極めて簡単な低コスト回路にて電源電圧変動の補正を行うことができるもので、各種電気掃除機に適用できる。   As described above, the vacuum cleaner according to the present invention uses the phase difference characteristic between the secondary side voltage phase and the primary side voltage phase of the isolation transformer itself. And a circuit such as a feedback circuit is not required, and the power supply voltage fluctuation can be corrected with a very simple low-cost circuit, and can be applied to various vacuum cleaners.

本発明の第１の実施の形態における電気掃除機の回路図The circuit diagram of the vacuum cleaner in the 1st Embodiment of this invention 同電気掃除機の絶縁変圧器の一次〜二次電圧位相差例を示す図The figure which shows the primary-secondary voltage phase difference example of the insulation transformer of the vacuum cleaner （ａ）同電気掃除機の動作説明図（定格電圧２００Ｖ（及びこの定格電圧を挟む許容電圧範囲：例えば±１０％））、（ｂ）同電気掃除機の動作説明図（定格電圧２００Ｖよりも異常に高い電圧）(A) Operational explanatory diagram of the vacuum cleaner (rated voltage 200V (and allowable voltage range sandwiching the rated voltage: for example ± 10%)), (b) Operational explanatory diagram of the vacuum cleaner (than the rated voltage 200V) Unusually high voltage) 従来の電気掃除機の斜視図A perspective view of a conventional vacuum cleaner

符号の説明Explanation of symbols

１ 電動送風機
２ 電動送風機制御手段
３ 制御手段
４ 信号伝達手段
５ 電圧発生手段
６ 絶縁変圧器
１２ 操作手段 DESCRIPTION OF SYMBOLS 1 Electric blower 2 Electric blower control means 3 Control means 4 Signal transmission means 5 Voltage generation means 6 Insulation transformer 12 Operation means

Claims (4)

塵埃を吸引するための電動送風機と、前記電動送風機を制御する電動送風機制御手段と、前記電動送風機の電力信号を出力する制御手段と、前記制御手段からの信号を前記電動送風機制御手段に伝達する信号伝達手段と、前記制御手段を一次側電源から絶縁し動作電圧を与える絶縁変圧器を用いた電圧発生手段とを備え、その絶縁変圧器の二次側電圧位相と一次側電圧位相との位相差は、一次側電源電圧に応じて変化することを特徴とする電気掃除機。 An electric blower for sucking dust, electric blower control means for controlling the electric blower, control means for outputting a power signal of the electric blower, and a signal from the control means is transmitted to the electric blower control means. Signal transmission means, and voltage generation means using an insulation transformer that insulates the control means from the primary side power supply and gives an operating voltage, the level of the secondary side voltage phase and the primary side voltage phase of the insulation transformer The vacuum cleaner characterized in that the phase difference changes according to the primary power supply voltage. ホースの端部に設けたホース手元部に、電動送風機の電力を設定する操作手段を設け、この操作手段の出力を制御手段に入力するようにした請求項１に記載の電気掃除機。 2. The electric vacuum cleaner according to claim 1, wherein operation means for setting electric power of the electric blower is provided at a hose proximal portion provided at an end portion of the hose, and an output of the operation means is input to the control means. 絶縁変圧器の二次側電圧位相は、一次側電圧位相よりも進み位相であることを特徴とする請求項１に記載の電気掃除機。 The vacuum cleaner according to claim 1, wherein the secondary voltage phase of the insulation transformer is a lead phase with respect to the primary voltage phase. 制御手段からの出力信号は、電動送風機の設定電力によらず所定のパルス幅を有するパルス信号を出力する構成とした請求項１〜３のいずれか１項に記載の電気掃除機。 The electric vacuum cleaner according to any one of claims 1 to 3, wherein the output signal from the control means is configured to output a pulse signal having a predetermined pulse width irrespective of the set power of the electric blower.
JP2008322146A 2008-12-18 2008-12-18 Electric vacuum cleaner Expired - Fee Related JP5309957B2 (en)

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JP2008322146A JP5309957B2 (en) 2008-12-18 2008-12-18 Electric vacuum cleaner
CN2009102580424A CN101744586B (en) 2008-12-18 2009-12-16 Electric dust collector and electric device

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JP6089211B2 (en) * 2013-05-07 2017-03-08 パナソニックＩｐマネジメント株式会社 Rechargeable vacuum cleaner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03234227A (en) * 1990-02-08 1991-10-18 Matsushita Electric Ind Co Ltd Vacuum cleaner
JPH0924004A (en) * 1995-07-11 1997-01-28 Yashima Denki Co Ltd Motor control device of vacuum cleaner
JP2001070213A (en) * 1999-09-09 2001-03-21 Toshiba Tec Corp Vacuum cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03234227A (en) * 1990-02-08 1991-10-18 Matsushita Electric Ind Co Ltd Vacuum cleaner
JPH0924004A (en) * 1995-07-11 1997-01-28 Yashima Denki Co Ltd Motor control device of vacuum cleaner
JP2001070213A (en) * 1999-09-09 2001-03-21 Toshiba Tec Corp Vacuum cleaner

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