WO2004075711A1 - Electric cleaner - Google Patents

Electric cleaner Download PDF

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Publication number
WO2004075711A1
WO2004075711A1 PCT/JP2004/002044 JP2004002044W WO2004075711A1 WO 2004075711 A1 WO2004075711 A1 WO 2004075711A1 JP 2004002044 W JP2004002044 W JP 2004002044W WO 2004075711 A1 WO2004075711 A1 WO 2004075711A1
Authority
WO
WIPO (PCT)
Prior art keywords
detection
conduction
light emitting
vacuum cleaner
power
Prior art date
Application number
PCT/JP2004/002044
Other languages
French (fr)
Japanese (ja)
Other versions
WO2004075711A8 (en
Inventor
Nobuharu Hikida
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2004075711A1 publication Critical patent/WO2004075711A1/en
Publication of WO2004075711A8 publication Critical patent/WO2004075711A8/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2821—Pressure, vacuum level or airflow
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2894—Details related to signal transmission in suction cleaners
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/30—Arrangement of illuminating devices
    • 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

Definitions

  • the present invention relates to a configuration of a vacuum cleaner.
  • phase control means controls the power consumption of the motor with the phase value of the phase control set by the output of the signal processing means. Since the power consumption is configured to change according to the air volume, when the amount of dust increases and the air volume drops sharply, the power consumption can be reduced by the pressure switch. Therefore, thermal restrictions can be eliminated. -However, in the conventional configuration, it is necessary to use a microcomputer for control using various analog sensors, and there is a problem that it is not possible to perform a down control in accordance with an operation switch.
  • an object of the present invention is to provide a low-cost vacuum cleaner capable of performing power-down control without using a microcomputer.
  • Another object of the present invention is to provide a small-sized vacuum cleaner capable of performing power-down control without using a microcomputer.
  • Still another object of the present invention is to provide a safe vacuum cleaner capable of performing power-down control as the temperature rises above a set value without using a microcomputer.
  • Still another object of the present invention is to provide an easy-to-use vacuum cleaner that can operate normally as soon as the cause is removed after the sensor operates. Disclosure of the invention
  • An electric vacuum cleaner includes a blower that generates a suction force, and a drive circuit that supplies AC power to the blower.
  • the vacuum cleaner transmits a control signal for controlling the supply of AC power from the drive circuit to the blower, and detects whether at least one of the temperature and the pressure is a set value.
  • a detection unit a phase control circuit comprising: a resistor having a resistance value; a power storage circuit for having a capacitance value; a phase information change circuit for changing at least one of the resistance value and the capacitance value in response to detection by the detection unit; A circuit for generating a control signal based on a time constant corresponding to the resistance value and the capacitance value.
  • the phase control circuit includes: a conduction detection unit configured to detect whether a path including the resistor and the power storage circuit is conductive; and a control unit configured to determine whether the conduction detection unit detects conduction.
  • a circuit for stopping the phase information changing circuit may be further included.
  • the phase control circuit includes: a conduction detection unit that detects whether a path including the resistor and the power storage circuit is conductive; and a second predetermined time after the conduction detection unit detects conduction.
  • a circuit that operates the phase information changing circuit irrespective of detection by the detection unit may be further included.
  • the phase control circuit stores the voltage as the voltage becomes equal to or higher than the first predetermined voltage.
  • a charge / discharge circuit for charging / discharging the electric circuit a voltage detecting unit for detecting a charging voltage of the power storage circuit, and a driving circuit in response to the charging voltage detected by the voltage detecting unit being equal to or higher than a second predetermined voltage
  • the phase information changing circuit may include a switch for electrically connecting one end and the other end of the resistor, and a switch control circuit for switching on / off of the switch according to detection by the detection unit. Good.
  • the switch includes a first photo power plug.
  • the first photo power blur includes a first light emitting circuit that emits light according to conduction, and a first conduction path that is either conductive or interrupted according to light from the first light emitting circuit. .
  • the first conduction path is provided on a path between one end and the other end of the resistor for conduction.
  • the switch control circuit controls the first light emitting circuit.
  • the switch control circuit may include a circuit for stopping light emission by the first light emitting circuit in response to detection by the detection unit.
  • the phase control circuit further includes a second photo power plug for detecting whether or not a path including the resistor and the power storage circuit is conductive.
  • the second photocoupler includes a second light emitting circuit provided on a path including a resistor and a power storage circuit, and a second light emitting circuit that is either conductive or interrupted according to light from the second light emitting circuit. And 2 conduction paths.
  • the switch control circuit detects conduction of the second conduction path.
  • the switch control circuit may include a circuit for stopping light emission by the first light emitting circuit for a first predetermined time according to conduction of the second conduction path.
  • the vacuum cleaner has an operation unit for conducting a path including the resistor and the power storage circuit, an alarm display circuit for performing an alarm display in response to detection by the detection unit, and an alarm display stopped.
  • the first light emitting circuit emits light regardless of the detection by the detecting unit until the second predetermined time elapses after the conduction is detected. May be further included.
  • the switch control circuit may further include a circuit for stopping light emission by the first light emitting circuit in response to detection by the detection unit after a second predetermined time has elapsed. More preferably, the switch control circuit may further include a circuit for stopping the alarm display for a second predetermined time.
  • the switch control circuit when the switch control circuit stops the light emission by the first light emitting circuit in response to the detection by the detection unit, the switch control circuit performs the light emission by the first light emitting circuit while the conduction of the second conduction path is detected. May be further included.
  • FIG. 1 is a diagram schematically showing a vacuum cleaner 100 according to an embodiment of the present invention.
  • FIG. 2 is a diagram schematically showing the cleaner main body 200 shown in FIG.
  • FIG. 3 shows a control circuit 3 included in the cleaner main body 200 in the embodiment of the present invention.
  • FIGS. 4A and 4B are diagrams for explaining the voltage supplied to the electric blower 18 by the phase control among the alternating voltages supplied to the drive unit 20 in the embodiment of the present invention. It is.
  • FIG. 5 is a flowchart showing an operation when performing power down control of the electric vacuum cleaner 100 in the embodiment of the present invention.
  • FIG. 1 is a diagram schematically illustrating a vacuum cleaner 100 according to an embodiment of the present invention.
  • a vacuum cleaner 100 according to an embodiment of the present invention includes a head 2 having a suction port, and a hand operation unit 8 for operating the vacuum cleaner 100.
  • a grip 6, a pipe 4 for connecting the head 2 to the grip 6, a hose 10 for allowing the vacuum cleaner 100 to pass the suctioned substance sucked from the head 2, and a vacuum cleaner body 200.
  • It includes a power plug 14 for plugging into a household power outlet and a power cord 12 for transmitting power from the outlet.
  • FIG. 2 is a diagram schematically showing the cleaner main body 200 shown in FIG.
  • the main body 200 of the vacuum cleaner includes a dust collecting chamber 16 for collecting the suctioned inside the main body 200 of the cleaner, an electric blower 18 for generating a suction force, and an electric motor. And a control circuit 300 for controlling the drive of the blower 18.
  • the electric blower 18 is controlled on-off (or strong, weak, stop, etc.) by the operation unit 8 via the control circuit 300.
  • FIG. 3 is a functional block diagram of a control circuit 300 included in the cleaner main body 200 in the embodiment of the present invention.
  • control circuit 300 includes a drive unit 20 for supplying a voltage to electric blower 18 in response to a control signal, and a power storage unit (not shown) having a predetermined capacity value.
  • the charging and discharging circuit section 22 for outputting a control signal to the driving section 20 as the voltage charged in the power storage section becomes a predetermined voltage, and the temperature is equal to or higher than the set value.
  • a continuity detection unit 42 to detect whether the switch of the hand operation unit 8 is turned on, and an alarm in response to the detection by the sensor 36.
  • a control unit 24 for controlling the resistance value variable unit 40 and the continuity detection unit 42, and a control unit.
  • a power supply section for supplying power to the power supply.
  • the electric blower 18 receives power control such as on / off or strong / weak via the drive unit 20 by operation of the hand operation unit 8.
  • the strength of the electric blower 18 is controlled by the phase information generated by the time constant corresponding to the resistance value of the resistor and the capacitance value of the power storage unit included in the path from the power supply unit 32 to the charge / discharge circuit unit 22.
  • the so-called “phase control” of controlling the voltage supplied to the electric blower 18 out of the AC voltage supplied to the drive unit 20 is performed.
  • the power storage unit includes a capacitor.
  • the phase information includes information related to the phase of the voltage of the AC power supply.
  • the charge / discharge circuit unit 22 starts charging / discharging according to the phase at which the voltage value of the AC power supply becomes 0 based on the phase information.
  • the output timing of the ON signal from the capacitor included in the charge / discharge circuit unit 22 to the drive unit 20 is It is determined by a time constant corresponding to the resistance value and the capacitance value of the path from the source section 32 to the charge / discharge circuit section 22. That is, by making at least one of the resistance value and the capacitance value variable, the AC voltage supplied to the electric blower 18 by the drive unit 20 can be controlled.
  • the hand operation unit 8 includes a resistor 8a, a resistor 8b, and a switch 8c.
  • the resistor 8a and the resistor 8b are connected in series.
  • One end of the resistor 8b is connected to the charge / discharge circuit
  • Switch 8c connected to one end of the path from 32 is selectively connected to each node of resistor 8a and resistor 8b connected in series.
  • FIGS. 4A and 4B are diagrams for explaining the voltage supplied to the electric blower 18 by the phase control among the alternating voltages supplied to the drive unit 20 in the embodiment of the present invention.
  • FIG. FIG. 4A is a diagram showing charging / discharging timings in the charging / discharging circuit section 22.
  • FIG. 4B is a diagram for explaining a voltage supplied from the drive unit 20 to the electric blower 18 in response to a control signal.
  • charge / discharge circuit section 22 starts charging the internal capacitor by conduction of hand operation section 8.
  • a path from the power supply section 32 to the charging / discharging circuit section 22 includes a photo-power blur having a diode. Therefore, when the AC voltage exceeds the voltage at which the diode can conduct, current starts flowing in the path. Therefore, charging starts at the time when the AC voltage deviates from the zero crossing of the AC voltage.
  • the charge / discharge circuit section 22 detects a charging voltage charged in the capacitor. When the detected charging voltage reaches a set voltage set so that the ON signal is output to the predetermined driving unit 20, the charging / discharging circuit unit 22 sends a control signal to the driving unit 20. Is output.
  • the control of the output timing of the ON signal to the drive unit 20 controls the time from the zero crossing of the AC power supply to when the drive unit 20 is turned on. By controlling the time until the drive unit 20 turns on, The conductivity of the power supply changes. As a result, the drive of the electric blower 18 is controlled.
  • the drive unit 20 supplies the voltage of the AC power supply to the electric blower 18 according to the control signal. Then, the drive unit 20 supplies the voltage to the electric blower 18 until the voltage of the AC power supply reaches the next zero cross. The above control is repeated every half cycle. The output of the electric blower 18 increases as the control signal approaches the zero cross.
  • the sensor 36 detects whether the temperature inside the vacuum cleaner 100 is equal to or higher than a set value. What is detected by the sensor 36 is not limited to temperature. For example, pressure may be used. Alternatively, both temperature and pressure detection may be performed.
  • the control section 24 changes the resistance value of the resistor 30 included therein by the resistance variable section 40 in response to the detection by the sensor 36.
  • the resistance variable section 40 that changes the resistance under the control of the control section 24 includes a switch for electrically connecting one end and the other end of the resistor 30. As a switch, it is preferable to use a photo-coupler. For example, in the variable resistance value section 40, a resistance antibody 30 having a resistance value and a photocoupler 26 having a light emitting section 26a and a light receiving section 26b therein are connected in parallel.
  • the photo power blur 26 is an isolation circuit in which the light emitting part 26a and the light receiving part 26b are electrically insulated using a space or an optical fiber.
  • the photocoupler 26 has a light emitting unit 26a that emits light in accordance with conduction, and a light receiving unit 26b that conducts in response to light emitted by the light emitting unit 26a.
  • the light receiving section 26 b is provided for conduction on a path between one end and the other end of the resistor 30.
  • the light emitting section 26a is, for example, but not limited to, a photodiode.
  • the light receiving section 26b is not particularly limited, but is, for example, a phototransistor.
  • the control section 24 controls light emission by the light emitting section 26a.
  • the control unit 24 normally energizes the light-emitting unit 26 a of the photo power blur 26 after the operation unit 8 is turned on. At this time, the charging current for charging the capacitor in the charging / discharging circuit section 22 flows through the light receiving section 26 b of the photocoupler 26.
  • the control unit 24 stops the light emission by the light emitting unit 26a as the input detected by the sensor 36 becomes equal to or more than the set value. That is, the current flowing through the light receiving section 26b is cut off. Charge current Flows through the resistor 30, so that the time required for the charging voltage to reach the set voltage becomes longer. As a result, the conductivity of the AC power supply decreases, so that the output of the electric blower 18 becomes smaller than when the current flows through the light receiving unit 26b.
  • control unit 24 causes the alarm display device 38 to display an alarm display as the input detected by the sensor 36 becomes equal to or more than the set value.
  • the control section 24 can detect whether or not the path from the power supply section 32 to the charging / discharging circuit section 22 is conducting by the conduction detecting section 42. That is, the control unit 24 can detect whether or not the hand operation unit 8 is off.
  • the continuity detecting section 42 is a photocoupler 28 having a light emitting section 28a and a light receiving section 28b inside.
  • the photocoupler 28 is an isolation circuit in which the light emitting unit 26a and the light receiving unit 26b are electrically insulated using a space or an optical fiber.
  • the photocoupler 28 includes a light emitting unit 28 a provided on a path from the resistor 30 and the power supply unit 32 to the charging / discharging circuit unit 22, and a light receiving unit that becomes conductive in response to light from the light emitting unit 28 a.
  • Part 28b the light emitting section 28a is, for example, but not limited to, a photodiode.
  • the light receiving section 28b is not particularly limited, but is, for example, a phototransistor.
  • the control unit 24 determines that the hand operation unit 8 is off when the light receiving unit 28b is in the cutoff state.
  • the power supply unit 34 is a power supply that supplies power to the control unit 24.
  • FIG. 5 is a flowchart showing an operation when performing power down control of the electric vacuum cleaner 100 in the embodiment of the present invention.
  • step S01 the user performs an operation on hand operation unit 8 (step S01).
  • the user turns on the switch included in the hand operation unit 8 or selects strong or weak.
  • the phase control operation is started in the charge / discharge circuit section 22 (step S02).
  • a capacitor included in the charge / discharge circuit unit 22 is charged.
  • the control unit 24 determines whether the charging voltage of the capacitor is equal to or higher than the set value.
  • the charging / discharging circuit section 22 continues charging.
  • the charging / discharging circuit unit 22 outputs a control signal to the driving unit 20.
  • the drive unit 20 supplies the voltage of the AC power supply to the electric blower 18 according to the control signal, and operates the electric blower 18. Then, the above-described phase control is repeated every half cycle of the AC voltage.
  • control unit 24 determines whether or not the input of the temperature detected by the sensor 36 is the setting: or more (step S O 3).
  • step S03 When it is determined in step S03 that the input detected by the sensor 36 is equal to or smaller than the set value, the control unit 24 continues the normal operation.
  • step SO3 If it is determined in step SO3 that the input detected by the sensor 36 is equal to or greater than the set value, the control unit 24 cuts off the current of the light emitting unit 26a of the photocoupler 26 (step SO 4).
  • the photo power blur 26 as the current of the light emitting unit 26a is cut off, the current of the light receiving unit 26b is cut off. Then, since the current flows through the resistor 30, the charge / discharge cycle in the charge / discharge circuit unit 22 becomes longer. As a result, the conductivity of the AC power source is reduced, and the output of the electric blower 18 is power-down controlled.
  • the control unit 24 allows the current to flow to the light emitting unit 26a.
  • the light receiving section 26b is also turned on according to the conduction of the light emitting section 26a, so that the charging current does not decrease. Therefore, charging and discharging can be performed based on the charging and discharging cycle determined by the nodes of the resistor 8a and the resistor 8b which are selectively connected to the hand operation unit 8.
  • the control unit 24 cuts off the current to the light emitting unit 26a of the photo power blur 26.
  • the light receiving section 26b In response to the interruption of the current of the light emitting section 26a, the light receiving section 26b is shut off. Therefore, the charging current flows through the resistor 30. As a result, the charge / discharge cycle becomes longer. Therefore, the conductivity of the AC voltage supplied from the drive unit 20 to the electric blower 18 decreases. As a result, power down control is performed.
  • the electric vacuum cleaner 100 is capable of performing power-down control for the first predetermined time by turning on the switch of the hand operation unit 8.
  • the photo power blur 28 detects that the switch of the hand operation unit 8 is turned on.
  • the control unit 24 detects conduction of the light receiving unit 28 b of the photocoupler 28.
  • the control unit 24 stops the light emission by the light emitting unit 26a of the photo power blur 26 until the first predetermined time elapses after the switch of the hand operation unit 8 is turned on. That is, in response to the interruption of the current to the light-emitting unit 26a, the light-receiving unit 26b is also cut off. Therefore, in the vacuum cleaner 100, current flows through the resistor 30. As a result, power down control can be performed. As a result, it becomes possible to control the rotational torque of the electric blower 18 to be small and to suppress the inrush current.
  • the vacuum cleaner 100 is turned off by the hand operation unit 8 in order to eliminate the cause after the input detected by the sensor 36 becomes equal to or more than the set value.
  • the operation unit 8 is turned on again after removing the cause, the input detected by the sensor 36 may not be lower than the set value.
  • the sensor 36 is a temperature sensor, the temperature will not drop immediately even if the cause is removed.
  • the vacuum cleaner 100 can also cancel the power-down control for the second predetermined time after starting.
  • the control unit 24 displays an alarm display by the alarm display device 38 when the input detected by the sensor 36 is set ⁇ (directly or more. After the alarm display, the user operates the local operation unit 8 When the current is cut off, the alarm display indicates, for example, If not done, it will not be canceled. After removing the cause, the user resets the alarm display. Then, the user turns on the hand operation unit 8 again. At this time, if the hand operation unit 8 is turned on after the alarm display is released until the preset standby time elapses, the control unit 24 performs the normal operation for the second predetermined time.
  • the control unit 24 detects the continuity of the light receiving unit 28b during the standby time set in advance and detects the detection by the sensor 36. Even if the input is more than the set value, the light is emitted by the light emitting unit 26a. Further, after canceling the power-down control until the second predetermined time has elapsed since the hand operation unit 8 was turned on, the control unit 24 determines that the input detected by the sensor 36 is smaller than the set value. In some cases, control of normal operation is performed as it is. However, when the input detected by the sensor 36 is equal to or more than the set value, the control unit 24 stops the light emission by the light emitting unit 26a. That is, the control unit 24 performs power down control again.
  • the control unit 24 determines that the input from the sensor 36 is equal to or greater than the set value.
  • the warning display device 38 such as an LED (Light Emitting Diode) or a buzzer is not displayed.
  • the control unit 24 When the control unit 24 once stops the light emission by the light emitting unit 26a, the current flows through the light receiving unit 28b regardless of the input detected by the sensor 36 thereafter. During this time, the light emission by the light emitting unit 26a is stopped. That is, once the power down control is started, the control unit 24 continues the power down control until the hand operation unit 8 is turned off. This is near the set value of the input from the sensor 36, and when the input of the sensor 36 fluctuates, the electric blower 18 repeats the normal operation and the power down control operation. As a result, the user may feel uneasy. As described above, according to the present invention, the power down control of the electric blower 18 is performed as the temperature becomes equal to or higher than the set value without using a microcomputer. As a result, it is possible to suppress the occurrence of an unsafe phenomenon or the like of the vacuum cleaner 100 due to a rise in temperature or pressure.
  • the inrush current can be suppressed to a small value. As a result, safety can be ensured without affecting other electric devices and without causing user anxiety.
  • the power-down control is released for the second predetermined time by turning on the hand operation unit 8 from off to on even if the input from the sensor 36 is equal to or more than the set value.
  • control according to the input from the sensor 36 is performed. That is, if the input from the sensor 36 is equal to or more than the set value even after the second predetermined time has elapsed, the power down control is performed, so that safe control is possible.
  • the alarm by the LED or the buzzer is also canceled or stopped, so that the user is not discomforted.
  • the power down control is controlled so that the normal operation and the power down control operation are repeated to give anxiety to the user. Control is possible without.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

An electric cleaner has an electric blower (18) for producing sucking force, a sensor (36) for detecting that at least either a temperature or a pressure is at a set value, and a control circuit for controlling the operation of the electric blower (18). The control circuit has a drive portion (20) for supplying AC power to the electric blower (18) in accordance with a control signal, a charging/discharging circuit (22) for charging and discharging a capacitor and outputting a control signal to the drive portion (20) when a charge voltage is equal to or more than a predetermined value, and a resistor body (30) with a resistance value. The control circuit switches, in accordance with detection by detecting means, between the conduction and cutout of photo-couplers (26) for electrically connecting one end and the other end of the resistor body (30).

Description

明細書 電気掃除機 技術分野  Description Vacuum cleaner Technical field
この発明は、 電気掃除機の構成に関する。 背景技術  The present invention relates to a configuration of a vacuum cleaner. Background art
従来から、 交流で駆動する電気掃除機の電動送風機の入力制御は行なわれてい る。 そのほとんどがマイクロコンピュータを用いて制御している。 また、 温度セ ンサとしてサーミスタを用いた場合はマイクロコンピュータを用いて制御してい マイクロコンピュータを用いないパワー制御の例として、 たとえば、 風量の低 下時の吸込力を高めるとともに、 電気掃除機の高吸込力化の動きの中で掃除機の 熱的制限の克服およびモータのブラシ耐久性の確保をし、 さらに掃除性能を高め ることを目的とした電気掃除機について以下のような構成が公知である （特開平 1 0 - 2 0 1 6 8 9号公報を参照）。 すなわち、 従来例では、 モータの負荷電流 を検出する電流検出手段と、 集塵室内の真空圧を検出する圧力スィッチと、 電流 検出手段と圧力スィッチの出力の信号処理手段と、 位相制御手段とを有する。 位 相制御手段は、 信号処理手段の出力で設定された位相制御の位相値でモータの消 費電力を制御する。 風量に応じて消費電力が変化するよう構成しているので、 ご み量が多くなって風量が激減したときには圧力スィツチにより消費電力を低減す ることができる。 したがって、 熱的制限が解消できる。 - しかしながら、 従来の構成において、 各種アナログセンサを用いた制御には、 マイクロコンピュータを用いる必要があるとともに、 操作スィッチに応じたパヮ 一ダウン制御ができないという課題があった。  Conventionally, input control of an electric blower of a vacuum cleaner driven by an alternating current has been performed. Most of them are controlled using a microcomputer. In addition, when a thermistor is used as the temperature sensor, control is performed using a microcomputer.Examples of power control without using a microcomputer include, for example, increasing the suction force when the air flow is low and increasing the height of the vacuum cleaner. The following configurations are known for vacuum cleaners aimed at overcoming the thermal limitation of the vacuum cleaner and ensuring the durability of the brush of the motor in order to improve the cleaning performance in the movement of the suction force. (See Japanese Patent Application Laid-Open No. 10-21069). That is, in the conventional example, current detection means for detecting the load current of the motor, pressure switch for detecting the vacuum pressure in the dust collection chamber, signal processing means for the output of the current detection means and the pressure switch, and phase control means Have. The phase control means controls the power consumption of the motor with the phase value of the phase control set by the output of the signal processing means. Since the power consumption is configured to change according to the air volume, when the amount of dust increases and the air volume drops sharply, the power consumption can be reduced by the pressure switch. Therefore, thermal restrictions can be eliminated. -However, in the conventional configuration, it is necessary to use a microcomputer for control using various analog sensors, and there is a problem that it is not possible to perform a down control in accordance with an operation switch.
また、 一度センサが動作すると、 原因を取り除いても温度を低下させることが できない。 そのため、 すぐに通常運転ができないという課題があった。  Also, once the sensor operates, the temperature cannot be reduced even if the cause is removed. Therefore, there was a problem that normal operation could not be performed immediately.
あるいは、 スロースタートを行なう際には、 マイクロコンピュータによる制御 が必要であるという課題があった。 Or, when performing slow start, control by microcomputer There was a problem that it was necessary.
そこで、 この発明の目的は、 マイクロコンピュータを用いずにパワーダウン制 御を行なうことができる低コストな電気掃除機を提供するものである。  Accordingly, an object of the present invention is to provide a low-cost vacuum cleaner capable of performing power-down control without using a microcomputer.
この発明の別の目的は、 マイクロコンピュータを用いずにパワーダウン制御を 行なうことができる小形の電^掃除機を提供するものである。  Another object of the present invention is to provide a small-sized vacuum cleaner capable of performing power-down control without using a microcomputer.
この発明のさらに別の目的は、 マイクロコンピュータを用いなくても温度が設 定値以上となるに応じてパワーダウン制御できる安全な電気掃除機を提供するも のである。  Still another object of the present invention is to provide a safe vacuum cleaner capable of performing power-down control as the temperature rises above a set value without using a microcomputer.
この発明のさらに別の目的は、 センサが動作した後、 原因を取り除くとすぐに 通常運転ができる使い勝手がよい電気掃除機を提供するものである。 発明の開示  Still another object of the present invention is to provide an easy-to-use vacuum cleaner that can operate normally as soon as the cause is removed after the sensor operates. Disclosure of the invention
この発明のある局面に係る電気掃除機は、 吸引する力を生み出す送風部と、 送 風部に交流電力を供給する駆動回路とを含む。 電気掃除機は、 駆動回路からの送 風部への交流電力の供給を制御する制御信号を送信する位相制御回路と、 少なく とも温度および圧力のうちの一方が設定値となっているかを検知する検知部とを 含む。 位相制御回路は、 抵抗値を有する抵抗体と、 容量値を有するための蓄電回 路と、 検知部による検知に応じて、 抵抗値および容量値のうち少なくとも一方を 変更する位相情報変更回路と、 抵抗値と容量値とに対応する時定数に基づいて、 制御信号を生成する回路とを含む。  An electric vacuum cleaner according to an aspect of the present invention includes a blower that generates a suction force, and a drive circuit that supplies AC power to the blower. The vacuum cleaner transmits a control signal for controlling the supply of AC power from the drive circuit to the blower, and detects whether at least one of the temperature and the pressure is a set value. And a detection unit. A phase control circuit comprising: a resistor having a resistance value; a power storage circuit for having a capacitance value; a phase information change circuit for changing at least one of the resistance value and the capacitance value in response to detection by the detection unit; A circuit for generating a control signal based on a time constant corresponding to the resistance value and the capacitance value.
好ましくは、 位相制御回路は、 抵抗体と蓄電回路とを含む経路が導通するか否 かを検知する導通検知部と、 導通検知部が導通を検知してから第 1の所定時間が 経過するまで位相情報変更回路を停止させる回路とをさらに含むようにしてもよ い。  Preferably, the phase control circuit includes: a conduction detection unit configured to detect whether a path including the resistor and the power storage circuit is conductive; and a control unit configured to determine whether the conduction detection unit detects conduction. A circuit for stopping the phase information changing circuit may be further included.
さらに好ましくは、 位相制御回路は、 抵抗体と蓄電回路とを含む経路が導通す るか否かを検知する導通検知部と、 導通検知部が導通を検知してから第 2の所定 時間が経過するまでの間、 検知部による検知に関わらず位相情報変更回路を動作 させる回路とをさらに含むようにしてもよい。  More preferably, the phase control circuit includes: a conduction detection unit that detects whether a path including the resistor and the power storage circuit is conductive; and a second predetermined time after the conduction detection unit detects conduction. In addition, a circuit that operates the phase information changing circuit irrespective of detection by the detection unit may be further included.
さらに好ましくは、 位相制御回路は、 第 1の所定電圧以上となるに応じて、 蓄 電回路の充放電を行なう充放電回路と、 蓄電回路の充電電圧の検出を行なう電圧 検出部と、 電圧検出部により検出された充電電圧が第 2の所定電圧以上となるに 応じて、 駆動回路に制御信号を出力する回路とをさらに含む。 位相情報変更回路 は、 抵抗体の一方端と他方端とを電気的に接続させるスィッチと、 検知部による 検知に応じて、 スィッチの導通と遮断とを切り替えるスィッチ制御回路とを含む ようにしてもよい。 More preferably, the phase control circuit stores the voltage as the voltage becomes equal to or higher than the first predetermined voltage. A charge / discharge circuit for charging / discharging the electric circuit, a voltage detecting unit for detecting a charging voltage of the power storage circuit, and a driving circuit in response to the charging voltage detected by the voltage detecting unit being equal to or higher than a second predetermined voltage And a circuit for outputting a control signal to the control signal. The phase information changing circuit may include a switch for electrically connecting one end and the other end of the resistor, and a switch control circuit for switching on / off of the switch according to detection by the detection unit. Good.
さらに好ましくは、 スィッチは、 第 1のフォト力プラを含む。 第 1のフォト力 ブラは、 導通に応じて発光を行なう第 1の発光回路と、 第 1の発光回路による光 に応じて、 導通および遮断のうちのいずれかとなる第 1の導通経路とを含む。 第 1の導通経路は、 抵抗体の一方端と他方端との経路上に、 導通するために設けら れる。 スィッチ制御回路は、 第 1の発光回路の制御を行なう。 スィッチ制御回路 は、 検知部による検知に応じて、 第 1の発光回路による発光を停止する回路を含 むようにしてもよい。  More preferably, the switch includes a first photo power plug. The first photo power blur includes a first light emitting circuit that emits light according to conduction, and a first conduction path that is either conductive or interrupted according to light from the first light emitting circuit. . The first conduction path is provided on a path between one end and the other end of the resistor for conduction. The switch control circuit controls the first light emitting circuit. The switch control circuit may include a circuit for stopping light emission by the first light emitting circuit in response to detection by the detection unit.
さらに好ましくは、 位相制御回路は、 抵抗体と、 蓄電回路とを含む経路が導通 するか否かを検知する第 2のフォト力プラをさらに含む。 第 2のフォトカプラは、 抵抗体と、 蓄電回路とを含む経路上に設けられる第 2の発光回路と、 第 2の発光 回路による光に応じて、 導通およぴ遮断のうちいずれかとなる第 2の導通経路と を含む。 スィッチ制御回路は、 第 2の導通経路の導通の検知を行なう。 スィッチ 制御回路は、 第 2の導通経路の導通に応じて、 第 1の所定時間、 第 1の発光回路 による発光を停止する回路を含むようにしてもよい。  More preferably, the phase control circuit further includes a second photo power plug for detecting whether or not a path including the resistor and the power storage circuit is conductive. The second photocoupler includes a second light emitting circuit provided on a path including a resistor and a power storage circuit, and a second light emitting circuit that is either conductive or interrupted according to light from the second light emitting circuit. And 2 conduction paths. The switch control circuit detects conduction of the second conduction path. The switch control circuit may include a circuit for stopping light emission by the first light emitting circuit for a first predetermined time according to conduction of the second conduction path.
さらに好ましくは、 電気掃除機は、 抵抗体と、 蓄電回路とを含む経路を導通さ せる操作部と、 検知部による検知に応じて、 警報表示を行なう警報表示回路と、 警報表示が停止されてから予め設定された時間の間において、 導通が検知される と、 導通が検知されてから第 2の所定時間が経過するまでの間、 検知部による検 知に関わらず第 1の発光回路による発光を行なう回路とをさらに含むようにして もよい。  More preferably, the vacuum cleaner has an operation unit for conducting a path including the resistor and the power storage circuit, an alarm display circuit for performing an alarm display in response to detection by the detection unit, and an alarm display stopped. When the conduction is detected for a predetermined time from, the first light emitting circuit emits light regardless of the detection by the detecting unit until the second predetermined time elapses after the conduction is detected. May be further included.
さらに好ましくは、'スィッチ制御回路は、 第 2の所定時間経過後に、 検知部に よる検知に応じて、 第 1の発光回路による発光を停止する回路をさらに含むよう にしてもよい。 さらに好ましくは、 スィッチ制御回路は、 第 2の所定時間、 警報表示を停止す る回路をさらに含むようにしてもよい。 More preferably, the switch control circuit may further include a circuit for stopping light emission by the first light emitting circuit in response to detection by the detection unit after a second predetermined time has elapsed. More preferably, the switch control circuit may further include a circuit for stopping the alarm display for a second predetermined time.
さらに好ましくは、 スィッチ制御回路は、 検知部による検知に応じて、 第 1の 発光回路による発光を停止する場合、' 第 2の導通経路の導通が検知される間、 第 1の発光回路による発光の停止を継続する回路をさらに含むようにしてもよい。 図面の簡単な説明  More preferably, when the switch control circuit stops the light emission by the first light emitting circuit in response to the detection by the detection unit, the switch control circuit performs the light emission by the first light emitting circuit while the conduction of the second conduction path is detected. May be further included. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 本発明の実施例における電気掃除機 1 0 0の概略を示す図である。 図 2は、 図 1に示した掃除機本体 2 0 0の概略を示す図である。  FIG. 1 is a diagram schematically showing a vacuum cleaner 100 according to an embodiment of the present invention. FIG. 2 is a diagram schematically showing the cleaner main body 200 shown in FIG.
図 3は、 本発明の実施例における掃除機本体 2 0 0内部に含まれる制御回路 3 FIG. 3 shows a control circuit 3 included in the cleaner main body 200 in the embodiment of the present invention.
0 0の機能ブロック図である。 It is a functional block diagram of 00.
図 4 Aおよび図 4 Bは、 本発明の実施例において、 駆動部 2 0に供給される交 流電圧のうち、 位相制御により、 電動送風機 1 8に供給される電圧を説明するた めの図である。  FIGS. 4A and 4B are diagrams for explaining the voltage supplied to the electric blower 18 by the phase control among the alternating voltages supplied to the drive unit 20 in the embodiment of the present invention. It is.
図 5は、 本発明の実施例おける電気掃除機 1 0 0のパワーダウン制御を行なう 際の動作を示すフローチヤ一トである。 発明を実施するための最良の形態  FIG. 5 is a flowchart showing an operation when performing power down control of the electric vacuum cleaner 100 in the embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の実施例について図面を用いて詳細に説明する。 以下の説明では、 同一の構成部分には同一の符号を付してあり、 それらの名称および機能も同じで ある。 したがって、 それらについて詳細な説明は繰り返さない。  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same components are denoted by the same reference characters, and have the same names and functions. Therefore, detailed description thereof will not be repeated.
図 1は、 本宪明の実施例における電気掃除機 1 0 0の概略を示す図である。 図 1を参照して、 本発明の実施例における電気掃除機 1 0 0は、 吸引口を有す るへッド 2と、 手元操作部 8を含み電気掃除機 1 0 0を操作するためのグリップ 6と、 ヘッド 2とグリップ 6を接続するためのパイプ 4と、 電気掃除機 1 0 0が へッド 2から吸引した吸引物を通すためのホース 1 0と、 掃除機本体 2 0 0と、 家庭電源のコンセントに差し込むための電源プラグ 1 4と、 コンセントからの電 力を伝達するための電源コード 1 2とを含む。  FIG. 1 is a diagram schematically illustrating a vacuum cleaner 100 according to an embodiment of the present invention. Referring to FIG. 1, a vacuum cleaner 100 according to an embodiment of the present invention includes a head 2 having a suction port, and a hand operation unit 8 for operating the vacuum cleaner 100. A grip 6, a pipe 4 for connecting the head 2 to the grip 6, a hose 10 for allowing the vacuum cleaner 100 to pass the suctioned substance sucked from the head 2, and a vacuum cleaner body 200. It includes a power plug 14 for plugging into a household power outlet and a power cord 12 for transmitting power from the outlet.
図 2は、 図 1に示した掃除機本体 2 0 0の概略を示す図である。 図 2を参照して、 掃除機本体 2 0 0は、 掃除機本体 2 0 0内部に吸引したもの を集めるための集塵室 1 6と、 吸引力を生み出すための電動送風機 1 8と、 電動 送風機 1 8の駆動を制御するための制御回路 3 0 0とを含む。 FIG. 2 is a diagram schematically showing the cleaner main body 200 shown in FIG. Referring to FIG. 2, the main body 200 of the vacuum cleaner includes a dust collecting chamber 16 for collecting the suctioned inside the main body 200 of the cleaner, an electric blower 18 for generating a suction force, and an electric motor. And a control circuit 300 for controlling the drive of the blower 18.
電動送風機 1 8の吸引力により吸引されたものは、 集塵室 1 6に蓄積される。 また、 電動送風機 1 8は、 手元操作部 8により制御回路 3 0 0を介してオンーォ フ （あるいは強、 弱、 停止等） の制御を受ける。  What is sucked by the suction force of the electric blower 18 is accumulated in the dust collection chamber 16. In addition, the electric blower 18 is controlled on-off (or strong, weak, stop, etc.) by the operation unit 8 via the control circuit 300.
図 3は、 本発明の実施例における掃除機本体 2 0 0内部に含まれる制御回路 3 0 0の機能ブロック図である。  FIG. 3 is a functional block diagram of a control circuit 300 included in the cleaner main body 200 in the embodiment of the present invention.
図 3を参照して、 制御回路 3 0 0は、 制御信号に応じて、 電動送風機 1 8に電 圧を供給するための駆動部 2 0と、 所定の容量値を有する蓄電部 （図示せず） に 充電を行ない、 蓄電部に充電された電圧が所定の電圧となるに応じて駆動部 2 0 に制御信号を出力するための充放電回路部 2 2と、 温度が設定値以上となってい るかを検知するためのセンサ 3 6と、 充放電回路部 2 2に電力を供給するための 電源部 3 2と、 電源部 3 2から充放電回路部 2 2に至る経路の抵抗値を変更する ための抵抗値可変部 4 0と、 手元操作部 8のスィッチがオンとなっているか否か を検知するための導通検知部 4 2と、 センサ 3 6による検知に応じて警報を表示 するための警報表示装置 3 8と、 抵抗値可変部 4 0および導通検知部 4 2を制御 するための制御部 2 4と、 制御部 2 4に電力を供給するための電源部 3 4とを含 む。  Referring to FIG. 3, control circuit 300 includes a drive unit 20 for supplying a voltage to electric blower 18 in response to a control signal, and a power storage unit (not shown) having a predetermined capacity value. The charging and discharging circuit section 22 for outputting a control signal to the driving section 20 as the voltage charged in the power storage section becomes a predetermined voltage, and the temperature is equal to or higher than the set value. Change the resistance value of the path from the power supply section 32 to the charging / discharging circuit section 22 and the power supply section 32 for supplying power to the charging / discharging circuit section 22 To change the resistance value, a continuity detection unit 42 to detect whether the switch of the hand operation unit 8 is turned on, and an alarm in response to the detection by the sensor 36. And a control unit 24 for controlling the resistance value variable unit 40 and the continuity detection unit 42, and a control unit. And a power supply section for supplying power to the power supply.
電動送風機 1 8は、 手元操作部 8による操作により、 駆動部 2 0を介してオン 一オフあるいは強、 弱等のパワー制御を受ける。  The electric blower 18 receives power control such as on / off or strong / weak via the drive unit 20 by operation of the hand operation unit 8.
電動送風機 1 8の強弱の制御は、 電源部 3 2から充放電回路部 2 2に至る経路 に含まれる抵抗体の抵抗値および蓄電部の容量値に対応する時定数により生成さ れる位相情報により、 駆動部 2 0に供給される交流電圧のうち、 電動送風機 1 8 に供給する電圧を制御する、 いわゆる、 「位相制御」 により行なう。 本発明の実 施例において、 蓄電部は、 コンデンサを含む。 また、 位相情報は、 交流電源の電 圧の位相に関連する情報を含む。 充放電回路部 2 2は、 位相情報により交流電源 の電圧値が 0となる位相に応じて、 充放電を開始する。 このとき、 充放電回路部 2 2に含まれるコンデンサから駆動部 2 0へのオン信号の出力タイミングは、 電 源部 3 2から充放電回路部 2 2に至る経路の抵抗値おょぴ容量値に対応する時定 数により決定される。 すなわち、 抵抗値おょぴ容量値のうちの少なくとも一方を 可変とすることにより、 駆動部 2 0により電動送風機 1 8に供給される交流電圧 の制御を行なうことができる。 The strength of the electric blower 18 is controlled by the phase information generated by the time constant corresponding to the resistance value of the resistor and the capacitance value of the power storage unit included in the path from the power supply unit 32 to the charge / discharge circuit unit 22. The so-called “phase control” of controlling the voltage supplied to the electric blower 18 out of the AC voltage supplied to the drive unit 20 is performed. In an embodiment of the present invention, the power storage unit includes a capacitor. The phase information includes information related to the phase of the voltage of the AC power supply. The charge / discharge circuit unit 22 starts charging / discharging according to the phase at which the voltage value of the AC power supply becomes 0 based on the phase information. At this time, the output timing of the ON signal from the capacitor included in the charge / discharge circuit unit 22 to the drive unit 20 is It is determined by a time constant corresponding to the resistance value and the capacitance value of the path from the source section 32 to the charge / discharge circuit section 22. That is, by making at least one of the resistance value and the capacitance value variable, the AC voltage supplied to the electric blower 18 by the drive unit 20 can be controlled.
手元操作部 8は、 抵抗体 8 aと抵抗体 8 bとスィッチ 8 cとを含む。 抵抗体 8 aと抵抗体 8 bとは、 直列に接続される。 抵抗体 8 bの一方端は、 充放電回路部 The hand operation unit 8 includes a resistor 8a, a resistor 8b, and a switch 8c. The resistor 8a and the resistor 8b are connected in series. One end of the resistor 8b is connected to the charge / discharge circuit
2 2に至る経路の一端に接続される。 ユーザは、 手元操作部 8に含まれ、 電源部Connected to one end of the path to 22. The user is included in the operation unit 8
3 2からの経路の一端と接続されるスィッチ 8 cを、 直列に接続される抵抗体 8 aおよび抵抗体 8 bの各ノードに選択的に接続する。 選択されたノードに応じて、 電源部 3 2から充放電回路部 2 2に至る経路の抵抗値が変化することにより、 強、 中、 弱のパワー制御を行なうことができる。 Switch 8c connected to one end of the path from 32 is selectively connected to each node of resistor 8a and resistor 8b connected in series. By changing the resistance value of the path from the power supply section 32 to the charging / discharging circuit section 22 according to the selected node, strong, medium, and weak power control can be performed.
図 4 Aおよび図 4 Bは、 本宪明の実施例において、 駆動部 2 0に供給される交 流電圧のうち、 位相制御により、 電動送風機 1 8に供給される電圧を説明するた めの図である。 図 4 Aは、 充放電回路部 2 2における充放電のタイミングを示す 図である。 図 4 Bは、 制御信号に応じて駆動部 2 0から電動送風機 1 8に供給さ れる電圧を説明するための図である。  FIGS. 4A and 4B are diagrams for explaining the voltage supplied to the electric blower 18 by the phase control among the alternating voltages supplied to the drive unit 20 in the embodiment of the present invention. FIG. FIG. 4A is a diagram showing charging / discharging timings in the charging / discharging circuit section 22. FIG. 4B is a diagram for explaining a voltage supplied from the drive unit 20 to the electric blower 18 in response to a control signal.
図 4 Aを参照して、 手元操作部 8の導通により、 充放電回路部 2 2は、 内部の コンデンサへの充電を開始する。 このとき、 電源部 3 2から充放電回路部 2 2に 至る経路には、 ダイオードを有するフォト力ブラが含まれている。 そのため、 交 流電圧がダイオードの導通可能な電圧を越えるときから、 経路に電流が流れ始め る。 そのため、 充電開始時間は、 交流電圧のゼロクロスからずれた時点から充電 が開始される。 また、 充放電回路部 2 2は、 コンデンサに充電される充電電圧を 検出している。 検出された充電電圧が、 所定の駆動部 2 0へのオン信号の出カタ イミングとなるように設定される設定電圧になる場合に、 充放電回路部 2 2は、 駆動部 2 0に制御信号を出力する。  Referring to FIG. 4A, charge / discharge circuit section 22 starts charging the internal capacitor by conduction of hand operation section 8. At this time, a path from the power supply section 32 to the charging / discharging circuit section 22 includes a photo-power blur having a diode. Therefore, when the AC voltage exceeds the voltage at which the diode can conduct, current starts flowing in the path. Therefore, charging starts at the time when the AC voltage deviates from the zero crossing of the AC voltage. Further, the charge / discharge circuit section 22 detects a charging voltage charged in the capacitor. When the detected charging voltage reaches a set voltage set so that the ON signal is output to the predetermined driving unit 20, the charging / discharging circuit unit 22 sends a control signal to the driving unit 20. Is output.
図 4 Bを参照して、 充放電周期を可変とすることにより、 電動送風機 1 8の駆 動の強弱等の制御を行なうことができる。 駆動部 2 0へのオン信号の出力タイミ ングの制御は、 交流電源のゼロクロスから駆動部 2 0をオンするまでの時間を制 御することとなる。 駆動部 2 0をオンするまでの時間を制御することにより、 交 流電源の導通率が変化する。 その結果、 電動送風機 1 8の駆動の制御が行なわれ る。 Referring to FIG. 4B, by making the charge / discharge cycle variable, it is possible to control the intensity of driving of electric blower 18 and the like. The control of the output timing of the ON signal to the drive unit 20 controls the time from the zero crossing of the AC power supply to when the drive unit 20 is turned on. By controlling the time until the drive unit 20 turns on, The conductivity of the power supply changes. As a result, the drive of the electric blower 18 is controlled.
駆動部 2 0は、 制御信号に応じて交流電源の電圧を電動送風機 1 8に供給する。 そして、 駆動部 2 0は、 交流電源の電圧が次のゼロクロスとなるまで、 電動送風 機 1 8に電圧を供給する。 上記のような制御が各半サイクル毎に繰り返される。 制御信号がゼロクロスに近い程、 電動送風機 1 8の出力は大きくなる。  The drive unit 20 supplies the voltage of the AC power supply to the electric blower 18 according to the control signal. Then, the drive unit 20 supplies the voltage to the electric blower 18 until the voltage of the AC power supply reaches the next zero cross. The above control is repeated every half cycle. The output of the electric blower 18 increases as the control signal approaches the zero cross.
センサ 3 6は、 電気掃除機 1 0 0内部の温度が設定値以上となっているかの検 知を行なう。 センサ 3 6により検知されるものは、 温度に限定されない。 たとえ ば、 圧力であってもよい。 または、 温度と圧力の両方の検知を行なってもよい。 制御部 2 4は、 センサ 3 6による検知に応じて、 抵抗値可変部 4 0により、 内 部に含まれる抵抗体 3 0の抵抗値を可変とする。 制御部 2 4による制御を受けて、 抵抗値を変更する抵抗値可変部 4 0は、 抵抗体 3 0の一方端と他方端とを電気的 に接続させるためのスイシチを含む。 スィッチとして、 好ましくは、 フォトカブ ラを利用するのが望ましい。 たとえば、 抵抗値可変部 4 0は、 抵抗値を有する抵 抗体 3 0と、 発光部 2 6 aと受光部 2 6 bとを内部に有するフォトカプラ 2 6と が並列に接続される。  The sensor 36 detects whether the temperature inside the vacuum cleaner 100 is equal to or higher than a set value. What is detected by the sensor 36 is not limited to temperature. For example, pressure may be used. Alternatively, both temperature and pressure detection may be performed. The control section 24 changes the resistance value of the resistor 30 included therein by the resistance variable section 40 in response to the detection by the sensor 36. The resistance variable section 40 that changes the resistance under the control of the control section 24 includes a switch for electrically connecting one end and the other end of the resistor 30. As a switch, it is preferable to use a photo-coupler. For example, in the variable resistance value section 40, a resistance antibody 30 having a resistance value and a photocoupler 26 having a light emitting section 26a and a light receiving section 26b therein are connected in parallel.
フォト力ブラ 2 6は、 発光部 2 6 aと受光部 2 6 bとが空間または光ファイバ のようなものを用いて電気的に絶縁されているアイソレーション回路である。 フ ォトカプラ 2 6は、 導通に応じて発光する発光部 2 6 aと、 発光部 2 6 aによる 光に応じて、 導通する受光部 2 6 bとを有する。 受光部 2 6 bは、 抵抗体 3 0の 一方端と他方端との間の経路上に、 導通するために設けられる。 ここで、 発光部 2 6 aは、 特に限定されないが、 たとえば、 フォトダイオードである。 また、 受 光部 2 6 bは、 特に限定されないが、 たとえば、 フォトトランジスタである。 . 制御部 2 4は、 発光部 2 6 aによる発光の制御を行なう。 制御部 2 4は、 手元 操作部 8がオンされてから、 通常、 フォト力ブラ 2 6の発光部 2 6 aに通電させ ている。 このとき、 充放電回路部 2 2内のコンデンサを充電するための充電電流 は、 フォトカプラ 2 6の受光部 2 6 bを介して流れる。 制御部 2 4は、 センサ 3 6により検知される入力が設定値以上となるに応じて、 発光部 2 6 aによる発光 を停止させる。 すなわち、 受光部 2 6 bに流れる電流は、 遮断される。 充電電流 は、 抵抗体 3 0を介して流れるため、 充電電圧が設定電圧となるまでの時間が長 くなる。 その結果、 交流電源の導通率が低下するため、 電動送風機 1 8の出力は、 電流が受光部 2 6 bを介して流れる場合と比べて小さくなる。 The photo power blur 26 is an isolation circuit in which the light emitting part 26a and the light receiving part 26b are electrically insulated using a space or an optical fiber. The photocoupler 26 has a light emitting unit 26a that emits light in accordance with conduction, and a light receiving unit 26b that conducts in response to light emitted by the light emitting unit 26a. The light receiving section 26 b is provided for conduction on a path between one end and the other end of the resistor 30. Here, the light emitting section 26a is, for example, but not limited to, a photodiode. The light receiving section 26b is not particularly limited, but is, for example, a phototransistor. The control section 24 controls light emission by the light emitting section 26a. The control unit 24 normally energizes the light-emitting unit 26 a of the photo power blur 26 after the operation unit 8 is turned on. At this time, the charging current for charging the capacitor in the charging / discharging circuit section 22 flows through the light receiving section 26 b of the photocoupler 26. The control unit 24 stops the light emission by the light emitting unit 26a as the input detected by the sensor 36 becomes equal to or more than the set value. That is, the current flowing through the light receiving section 26b is cut off. Charge current Flows through the resistor 30, so that the time required for the charging voltage to reach the set voltage becomes longer. As a result, the conductivity of the AC power supply decreases, so that the output of the electric blower 18 becomes smaller than when the current flows through the light receiving unit 26b.
また、 制御部 2 4は、 センサ 3 6により検知される入力が設定値以上となるに 応じて、 警報表示装置 3 8により、.警報表示を表示させる。  Further, the control unit 24 causes the alarm display device 38 to display an alarm display as the input detected by the sensor 36 becomes equal to or more than the set value.
制御部 2 4は、 導通検知部 4 2により、 電源部 3 2力 ら充放電回路部 2 2に至 る経路が導通しているか否かを検知することができる。 すなわち、 制御部 2 4は、 手元操作部 8がオフか否かを検知することができる。  The control section 24 can detect whether or not the path from the power supply section 32 to the charging / discharging circuit section 22 is conducting by the conduction detecting section 42. That is, the control unit 24 can detect whether or not the hand operation unit 8 is off.
また、 導通検知部 4 2においても、 好ましくは、 フォト力プラを利用するのが 望ましい。 たとえば、 導通検知部 4 2は、 内部に発光部 2 8 aと受光部 2 8 bと を有するフォトカプラ 2 8である。  Also, it is desirable to use a photo-power plug also in the conduction detecting section 42. For example, the continuity detecting section 42 is a photocoupler 28 having a light emitting section 28a and a light receiving section 28b inside.
フォトカプラ 2 8は、 発光部 2 6 aと受光部 2 6 bとが空間または光ファイバ のようなものを用いて電気的に絶縁されているアイソレーション回路である。 フ ォトカプラ 2 8は、 抵抗体 3 0と電源部 3 2から充放電回路部 2 2に至る経路上 に設けられる発光部 2 8 aと、 発光部 2 8 aによる光に応じて導通となる受光部 2 8 bとを有する。 ここで、 発光部 2 8 aは、 特に限定されないが、 たとえば、 フォトダイオードである。 また、 受光部 2 8 bは、 特に限定されないが、 たとえ ば、 フォトトランジスタである。  The photocoupler 28 is an isolation circuit in which the light emitting unit 26a and the light receiving unit 26b are electrically insulated using a space or an optical fiber. The photocoupler 28 includes a light emitting unit 28 a provided on a path from the resistor 30 and the power supply unit 32 to the charging / discharging circuit unit 22, and a light receiving unit that becomes conductive in response to light from the light emitting unit 28 a. Part 28b. Here, the light emitting section 28a is, for example, but not limited to, a photodiode. The light receiving section 28b is not particularly limited, but is, for example, a phototransistor.
手元操作部 8がオフのときのみ、 フォトカプラ 2 8の発光部 2 8 aに電流が流 れないため、 受光部 2 8 bは、 遮断状態となる。 すなわち、 制御部 2 4は、 受光 部 2 8 bが遮断状態となる場合に、 手元操作部 8がオフであると判断する。  Only when the hand operation unit 8 is off, no current flows through the light-emitting unit 28a of the photocoupler 28, so that the light-receiving unit 28b is shut off. That is, the control unit 24 determines that the hand operation unit 8 is off when the light receiving unit 28b is in the cutoff state.
電源部 3 4は、 制御部 2 4へ電力を供給する電源である。  The power supply unit 34 is a power supply that supplies power to the control unit 24.
図 5は、 本発明の実施例おける電気掃除機 1 0 0のパワーダウン制御を行なう 際の動作を示すフローチヤ一トである。  FIG. 5 is a flowchart showing an operation when performing power down control of the electric vacuum cleaner 100 in the embodiment of the present invention.
図 5を参照して、 まず、 ユーザは、 手元操作部 8へ操作を行なう （ステップ S 0 1 )。 ユーザは、 手元操作部 8に含まれるスィッチをオンもしくは、 強、 弱の 選択をする。  Referring to FIG. 5, first, the user performs an operation on hand operation unit 8 (step S01). The user turns on the switch included in the hand operation unit 8 or selects strong or weak.
つづいて、 充放電回路部 2 2において、 位相制御の動作が開始される （ステツ プ S 0 2 )。 位相制御の動作として、 まず、 充放電回路部 2 2の内部に含まれるコンデンサ への充電が行なわれる。 そして、 制御部 2 4は、 コンデンサの充電電圧が設定値 以上であるかの判断を行なう。 コンデンサの充電電圧が設定値以下である場合、 . 充放電回路部 2 2は、 充電を,継続する。 また、 コンデンサの充電電圧が設定値以 上である場合、 充放 ¾回路部 2 2は、 駆動部 2 0に制御信号を出力する。. このと き、 駆動部 2 0は、 制御信号に応じて、 交流電源の電圧を電動送風機 1 8に供給 して、 電動送風機 1 8を動作させる。 そして、 上述したような位相制御が、 交流 電圧の半サイクル毎に繰り返される。 Subsequently, the phase control operation is started in the charge / discharge circuit section 22 (step S02). As an operation of the phase control, first, a capacitor included in the charge / discharge circuit unit 22 is charged. Then, the control unit 24 determines whether the charging voltage of the capacitor is equal to or higher than the set value. When the charging voltage of the capacitor is equal to or lower than the set value, the charging / discharging circuit section 22 continues charging. In addition, when the charging voltage of the capacitor is equal to or higher than the set value, the charging / discharging circuit unit 22 outputs a control signal to the driving unit 20. At this time, the drive unit 20 supplies the voltage of the AC power supply to the electric blower 18 according to the control signal, and operates the electric blower 18. Then, the above-described phase control is repeated every half cycle of the AC voltage.
つづいて、 制御部 2 4は、 センサ 3 6により検知される温度の入力が設定 ：以 上かどうかを判断する （ステップ S O 3 )。  Subsequently, the control unit 24 determines whether or not the input of the temperature detected by the sensor 36 is the setting: or more (step S O 3).
ステップ S 0 3において、 センサ 3 6により検知される入力が設定値以下であ ると判断される場合、 制御部 2 4は、 通常の運転を継続する。  When it is determined in step S03 that the input detected by the sensor 36 is equal to or smaller than the set value, the control unit 24 continues the normal operation.
そして、 ステップ S O 3において、 センサ 3 6により検知される入力が設定値 以上であると判断される場合、 制御部 2 4は、 フォトカプラ 2 6の発光部 2 6 a の電流を遮断する （ステップ S O 4 )。  If it is determined in step SO3 that the input detected by the sensor 36 is equal to or greater than the set value, the control unit 24 cuts off the current of the light emitting unit 26a of the photocoupler 26 (step SO 4).
そして、 フォト力ブラ 2 6において、 発光部 2 6 aの電流が遮断されるに応じ て、 受光部 2 6 bの電流が遮断される。 そして、 電流は、 抵抗体 3 0を介して流 れるため、 充放電回路部 2 2において充放電周期が長くなる。 その結果、 交流電 • 源の導通率が低下するため、 電動送風機 1 8の出力は、 パワーダウン制御される。  Then, in the photo power blur 26, as the current of the light emitting unit 26a is cut off, the current of the light receiving unit 26b is cut off. Then, since the current flows through the resistor 30, the charge / discharge cycle in the charge / discharge circuit unit 22 becomes longer. As a result, the conductivity of the AC power source is reduced, and the output of the electric blower 18 is power-down controlled.
以上説明したとおり、 センサ 3 6により検知される入力が設定値以下のとき、 フォト力ブラ 2 6において、 制御部 2 4により発光部 2 6 aに電流が導通される。 このとき、 発光部 2 6 aの導通に応じて、 受光部 2 6 bも導通するため、 充電電 • 流が低下することはない。 したがって、 手元操作部 8の選択的に接続された抵抗 体 8 aおよび抵抗体 8 bのノードにより定まる充放電周期に基づいて、 充放電を 行なうことができる。 しかし、 センサ 3 6により検知される入力が設定値を越え る場合、 制御部 2 4は、 フォト力ブラ 2 6の発光部 2 6 aへの電流を遮断する。 発光部 2 6 aの電流の遮断に応じて、 受光部 2 6 bは遮断される。 そのため、 充 電電流は抵抗体 3 0を介して流れる。 その結果、 充放電周期は長くなる。 したが つて、 駆動部 2 0から電動送風機 1 8に供給される交流電圧の導通率が低下する ことにより、 パワーダウン制御が行なわれる。 As described above, when the input detected by the sensor 36 is equal to or less than the set value, in the photopower blur 26, the control unit 24 allows the current to flow to the light emitting unit 26a. At this time, the light receiving section 26b is also turned on according to the conduction of the light emitting section 26a, so that the charging current does not decrease. Therefore, charging and discharging can be performed based on the charging and discharging cycle determined by the nodes of the resistor 8a and the resistor 8b which are selectively connected to the hand operation unit 8. However, when the input detected by the sensor 36 exceeds the set value, the control unit 24 cuts off the current to the light emitting unit 26a of the photo power blur 26. In response to the interruption of the current of the light emitting section 26a, the light receiving section 26b is shut off. Therefore, the charging current flows through the resistor 30. As a result, the charge / discharge cycle becomes longer. Therefore, the conductivity of the AC voltage supplied from the drive unit 20 to the electric blower 18 decreases. As a result, power down control is performed.
次に、 電動送風機 1 8の始動時には、 大きな回転トルクにより掃除機本体 2 0 0は振動する。 あるいは、 掃除機本体 2 0 0に大きな突入電流が流れる。 これら- を防止するために電動掃除機 1 0 0は、 手元操作部 8のスィッチがオンにされて 力 ^第 1の所定の.時間パヮ ダウン制御を可能とする。  Next, when the electric blower 18 is started, the cleaner main body 200 vibrates due to a large rotation torque. Alternatively, a large rush current flows through the cleaner body 200. In order to prevent these problems, the electric vacuum cleaner 100 is capable of performing power-down control for the first predetermined time by turning on the switch of the hand operation unit 8.
手元操作部 8のスィッチがオンにされてからのパワーダウン制御の動作におい て、 まず、 手元操作部 8のスィッチがオンされたことをフォト力ブラ 2 8で検知 する。 このとき、 制御部 2 4は、 フォトカプラ 2 8の受光部 2 8 bの導通の検知 を行なう。 そして、 手元操作部 8のスィッチがオンにされてから第 1の所定の時 間が経過するまで、 制御部 2 4は、 フォト力ブラ 2 6の発光部 2 6 aによる発光 を停止させる。 すなわち、 発光部 2 6 aへの電流の遮断に応じて、 受光部 2 6 b も遮断状態となる。 そのため、 電気掃除機 1 0 0においては、 抵抗体 3 0を介し て電流が流れる。 これにより、 パワーダウン制御を行なうことができる。 その結 果、 電動送風機 1 8の回転トルクを小さく抑えるとともに突入電流も抑える制御 が可能となる。  In the operation of the power-down control after the switch of the hand operation unit 8 is turned on, first, the photo power blur 28 detects that the switch of the hand operation unit 8 is turned on. At this time, the control unit 24 detects conduction of the light receiving unit 28 b of the photocoupler 28. Then, the control unit 24 stops the light emission by the light emitting unit 26a of the photo power blur 26 until the first predetermined time elapses after the switch of the hand operation unit 8 is turned on. That is, in response to the interruption of the current to the light-emitting unit 26a, the light-receiving unit 26b is also cut off. Therefore, in the vacuum cleaner 100, current flows through the resistor 30. As a result, power down control can be performed. As a result, it becomes possible to control the rotational torque of the electric blower 18 to be small and to suppress the inrush current.
また、 本発明の実施例において、 電気掃除機 1 0 0は、 センサ 3 6により検知 される入力が設定値以上となつた後に、 原因を取り除くために手元操作部 8によ りオフしたとする。 原因を取り除いた後、 再び手元操作部 8をオンする場合に、 センサ 3 6により検知される入力が設定値以下となっていないことがある。 たと えば、 センサ 3 6が温度センサの場合は、 原因を取り除いても、 すぐに温度は、 低下しない。 また、 パワーダウン制御により出力される風量では、 センサ 3 6の 入力を早急に設定値以下にすることが困難である。 そのため、 電気掃除機 1 0 0 は、 起動してからの第 2の所定の時間、 パワーダウン制御を解除することも可能 とする。  Further, in the embodiment of the present invention, it is assumed that the vacuum cleaner 100 is turned off by the hand operation unit 8 in order to eliminate the cause after the input detected by the sensor 36 becomes equal to or more than the set value. . When the operation unit 8 is turned on again after removing the cause, the input detected by the sensor 36 may not be lower than the set value. For example, if the sensor 36 is a temperature sensor, the temperature will not drop immediately even if the cause is removed. Also, it is difficult to quickly reduce the input of the sensor 36 to the set value or less with the air volume output by the power-down control. Therefore, the vacuum cleaner 100 can also cancel the power-down control for the second predetermined time after starting.
ここで、 電気掃除機 1 0 0が起動してからの第 2の所定の時間、 パワーダウン 制御を解除する動作について説明する。  Here, an operation of canceling the power-down control for a second predetermined time after the start of the electric vacuum cleaner 100 will be described.
制御部 2 4は、 センサ 3 6により検知される入力が設定 ^(直以上となるときに警 報表示装置 3 8により警報表示を表示させる。 警報表示の後に、 ユーザは、 手元 操作部 8により電流の遮断を行なうとする。 警報表示は、 たとえば、 解除操作を 行なわないと解除されないとする。 ユーザは、 原因を取り除いた後、 警報表示の 解除操作を行なう。 そして、 ユーザは、 再び手元操作部 8をオンにする。 このと き、 制御部 2 4は、 警報表示が解除されてから、 予め設定された待機時間が経過 するまでの間に手元操作部 8がオンされる場合、 第 2の所定の時間、 通常運転を 行なう。 すなわち、 制御部 2 4は、 警報表示が解除されたと判断した後、 予め設 定された待機時間の間は、 受光部 2 8 bの導通の検知に応じて、 センサ 3 6によ り検知される入力が設定値以上であっても、 発光部 2 6 aにより発光させる。 また、 手元操作部 8がオンされてから第 2の所定の時間が経過するまで、 パヮ 一ダウン制御を解除した後に、 制御部 2 4は、 センサ 3 6により検知される入力 が設定値以下である場合、 そのまま通常運転の制御を行なう。 し力 し、 センサ 3 6により検知される入力が設定値以上である場合、 制御部 2 4は、 発光部 2 6 a による発光を停止する。 すなわち、 制御部 2 4は、 再度パワーダウン制御を行な う。 The control unit 24 displays an alarm display by the alarm display device 38 when the input detected by the sensor 36 is set ^ (directly or more. After the alarm display, the user operates the local operation unit 8 When the current is cut off, the alarm display indicates, for example, If not done, it will not be canceled. After removing the cause, the user resets the alarm display. Then, the user turns on the hand operation unit 8 again. At this time, if the hand operation unit 8 is turned on after the alarm display is released until the preset standby time elapses, the control unit 24 performs the normal operation for the second predetermined time. Perform That is, after determining that the alarm display has been released, the control unit 24 detects the continuity of the light receiving unit 28b during the standby time set in advance and detects the detection by the sensor 36. Even if the input is more than the set value, the light is emitted by the light emitting unit 26a. Further, after canceling the power-down control until the second predetermined time has elapsed since the hand operation unit 8 was turned on, the control unit 24 determines that the input detected by the sensor 36 is smaller than the set value. In some cases, control of normal operation is performed as it is. However, when the input detected by the sensor 36 is equal to or more than the set value, the control unit 24 stops the light emission by the light emitting unit 26a. That is, the control unit 24 performs power down control again.
あるいは、 手元操作部 8がオンされてから第 2の所定の時間が経過するまで、 パワーダウン制御を解除している間、 制御部 2 4は、 センサ 3 6からの入力が設 定値以上であっても、 L E D (Light Emitting Diode) やブザー等による警報表 示装置 3 8による警報表示を表示させない。  Alternatively, while the power-down control is being canceled until the second predetermined time has elapsed since the hand operation unit 8 was turned on, the control unit 24 determines that the input from the sensor 36 is equal to or greater than the set value. However, the warning display device 38 such as an LED (Light Emitting Diode) or a buzzer is not displayed.
そして、 制御部 2 4は、 一度、 発光部 2 6 aによる発光を停止させた場合、 そ の後、 センサ 3 6により検知される入力に関わらず、 受光部 2 8 bを介して電流 が流れる間、 発光部 2 6 aによる発光の停止を継続する。 すなわち、 制御部 2 4 は、 一旦、 パワーダウン制御が開始された場合、 手元操作部 8をオフにするまで、 パワーダウン制御を継続する。 これは、 センサ 3 6からの入力の設定値の近辺で、 センサ 3 6の入力がふらつくと電動送風機 1 8が通常運転とパワーダウン制御運 転を繰り返す。 その結果、 使用者に不安感を抱かせる恐れがあるためである。 以上のように、 本発明によれば、 マイクロコンピュータを用いなくても温度が 設定値以上となるに応じて電動送風機 1 8をパワーダウン制御する。 これにより、 温度上昇や圧力上昇による電気掃除機 1 0 0の不安全な現象等の発生を抑えるこ とができる。  When the control unit 24 once stops the light emission by the light emitting unit 26a, the current flows through the light receiving unit 28b regardless of the input detected by the sensor 36 thereafter. During this time, the light emission by the light emitting unit 26a is stopped. That is, once the power down control is started, the control unit 24 continues the power down control until the hand operation unit 8 is turned off. This is near the set value of the input from the sensor 36, and when the input of the sensor 36 fluctuates, the electric blower 18 repeats the normal operation and the power down control operation. As a result, the user may feel uneasy. As described above, according to the present invention, the power down control of the electric blower 18 is performed as the temperature becomes equal to or higher than the set value without using a microcomputer. As a result, it is possible to suppress the occurrence of an unsafe phenomenon or the like of the vacuum cleaner 100 due to a rise in temperature or pressure.
または、 電動送風機 1 8の動作開始時に掃除機本体 2 0 0に大きな振動等を与 えず、 また突入電流も小さく抑えることができる。 これにより、 他の電気機器に 影響を与えることもなく、 使用者に不安を抱かせずに安全性を確保できる。 Or, when the operation of the electric blower 18 starts, a large vibration or the like is applied to the cleaner body 200. First, the inrush current can be suppressed to a small value. As a result, safety can be ensured without affecting other electric devices and without causing user anxiety.
あるいは、 手元操作部 8をオフからオンすることにより、 センサ 3 6からの入 力が設定値以上であっても、 第 2の所定の時間パワーダウン制御を解除する。 こ れにより、 温度が設定値以上となる原因を取り除いた後に、 電気掃除機 1 0 0を 早急に通常運転することが可能である。 そして、 第 2の所定の時間のパワーダウ ン制御の解除後は、 センサ 3 6からの入力に応じた制御を実施する。 すなわち、 第 2の所定の時間経過後も、 センサ 3 6からの入力が設定値以上の場合は、 パヮ 一ダウン制御になるため、 安全な制御が可能となる。  Alternatively, the power-down control is released for the second predetermined time by turning on the hand operation unit 8 from off to on even if the input from the sensor 36 is equal to or more than the set value. This makes it possible to immediately operate the vacuum cleaner 100 immediately after removing the cause of the temperature becoming higher than the set value. Then, after releasing the power-down control for the second predetermined time, control according to the input from the sensor 36 is performed. That is, if the input from the sensor 36 is equal to or more than the set value even after the second predetermined time has elapsed, the power down control is performed, so that safe control is possible.
さらに、 第 2の所定の時間のパワーダウン制御の解除中は、 L E D、 あるいは. ブザー等による警報も解除、 あるいは、 停止することにより、 使用者に不快感を 与えない。 また、 再度、 温度が設定値以上となるときには明確な警報を与えるこ とが可能である。  Further, while the power-down control is being canceled for the second predetermined time, the alarm by the LED or the buzzer is also canceled or stopped, so that the user is not discomforted. In addition, it is possible to give a clear warning when the temperature becomes higher than the set value again.
そして、 一度、 センサ 3 6からの温度の入力が設定値以上となると、 パワーダ ゥン制御を維持するように制御することにより、 通常運転とパワーダウン制御運 転を繰り返して使用者に不安を与えることなく制御が可能である。  Once the temperature input from the sensor 36 exceeds the set value, the power down control is controlled so that the normal operation and the power down control operation are repeated to give anxiety to the user. Control is possible without.
今回開示された実施例はすべての点で例示であって制限的なものではないと考 えられるべきである。 本発明の範囲は上記した説明ではなくて特許請求の範囲に よって示され、 特許請求の範囲と均等の意味および範囲内でのすべての変更が含 まれることが意図される。  The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

Claims

請求の範囲 The scope of the claims
1. 吸引する力を生み出すための送風手段 （18) と、 前記送風手段 （1 8) に交流電力を供給するための駆動手段 （20) とを含む電気掃除機 （10 0) において、 . 1. A vacuum cleaner (100) comprising: a blowing means (18) for generating a suction force; and a driving means (20) for supplying AC power to the blowing means (18).
前記駆動手段 (20) からの送風手段 （18) への交流電力の供給を制御する 制御信号を送信するための位相制御手段 （ 300 ) と、  Phase control means (300) for transmitting a control signal for controlling the supply of AC power from the drive means (20) to the blower means (18);
少なくとも温度および圧力のうちの一方が設定値となっているかを検知するた めの検知手段 （36) とを含み、  Detecting means (36) for detecting whether at least one of the temperature and the pressure is a set value,
前記位相制御手段 （300) は、  The phase control means (300)
抵抗値を有する抵抗体 （30) と、  A resistor (30) having a resistance value;
容量値を有するための蓄電手段と、  Power storage means for having a capacitance value;
前記検知手段による前記検知に応じて、 前記抵抗値および前記容量値のうち少 なくとも一方を変更するための位相情報変更手段と、  Phase information changing means for changing at least one of the resistance value and the capacitance value according to the detection by the detection means;
前記抵抗値と前記容量値とに対応する時定数に基づいて、 前記制御信号を生成 するための手段とを含む、 電気掃除機。  Means for generating the control signal based on a time constant corresponding to the resistance value and the capacitance value.
2. 前記位相制御手段 （300) は、 前記抵抗体 （30) と前記蓄電手段と を含む経路が導通するか否かを検知するための導通検知手段 （42) と、 前記導通検知手段 （42) が導通を検知してから第 1の所定時間が経過するま で前記位相情報変更手段を停止させるための手段とをさらに含む、 請求項 1に記 載の電気掃除機。  2. The phase control means (300) is a conduction detection means (42) for detecting whether or not a path including the resistor (30) and the power storage means is conducted, and the conduction detection means (42). 2. The vacuum cleaner according to claim 1, further comprising: means for stopping the phase information changing means until a first predetermined time elapses after detecting the conduction.
3. 前記位相制御手段.（300) は、 前記抵抗体 （30) と前記蓄電手段と を含む経路が導通するか否かを検知するための導通検知手段 （42) と、 前記導通検知手段 （42) が導通を検知してから第 2の所定時間が経過するま での間、 前記検知手段 （36) による前記検知に関わらず前記位相情報変更手段 を動作させるための手段とをさらに含む、 請求項 1に記載の電気掃除機。  3. The phase control means. (300) is a continuity detection means (42) for detecting whether or not a path including the resistor (30) and the power storage means is conductive, and the continuity detection means ( 42) further comprising means for operating the phase information changing means irrespective of the detection by the detecting means (36) until a second predetermined time has elapsed since the detection of conduction by the detecting means. The vacuum cleaner according to claim 1.
4. 前記位相制御手段 （300) は、  4. The phase control means (300)
第 1の所定電圧以上となるに応じて、 前記蓄電手段の充放電を行なうための充 放電手段と、 前記蓄電手段の充電電圧の検出を行なうための電圧検出手段と、 Charging / discharging means for charging / discharging the power storage means as the voltage becomes equal to or higher than a first predetermined voltage; Voltage detection means for detecting the charging voltage of the power storage means,
前記電圧検出手段により検出された充電電圧が第 2の所定電圧以上となるに応 じて、 前記駆動手段 (20) に前記制御信号を出力するための手段'（22) とを さらに含み、  Means (22) for outputting the control signal to the driving means (20) in response to the charging voltage detected by the voltage detecting means becoming equal to or higher than a second predetermined voltage,
前記位相情報変更手段は、 前記抵抗体 （30) の一方端と他方端とを電気的に 接続させるためのスィッチ （40) と、  A switch (40) for electrically connecting one end and the other end of the resistor (30);
前記検知手段 （36) による前記検知に応じて、 前記スィッチ （40) の導通 と遮断とを切り替えるためのスィッチ制御手段 (24) とを含む、 請求項 1に記 載の電気掃除機。  The vacuum cleaner according to claim 1, further comprising: switch control means (24) for switching between conduction and cutoff of the switch (40) in response to the detection by the detection means (36).
5. 前記スィッチ （40) は、 第 1のフォト力ブラ （26) を含み、 前記第 1のフォト力ブラ （26) は、  5. The switch (40) includes a first photo power bra (26), wherein the first photo power bra (26) comprises:
導通に応じて発光を行なうための第 1の発光手段 （26 a) と、  First light emitting means (26a) for emitting light according to conduction;
前記第 1の発光手段 （26 a) による光に応じて、 導通および遮断のうちのい ずれかとなる第 1の導通経路 （26 b) とを含み、  A first conduction path (26b) which is one of conduction and interruption depending on the light emitted by the first light emitting means (26a);
前記第 1の導通経路 （26 b) は、 前記抵抗体 （30) の一方端と他方端との 経路上に、 導通するために設けられ、  The first conduction path (26b) is provided for conduction on a path between one end and the other end of the resistor (30),
前記スィッチ制御手段 (24) は、 前記第 1の発光手段 （26 a) の制御を行 ない、  The switch control means (24) controls the first light emitting means (26a),
前記検知手段 (3 6) による前記検知に応じて、 前記第 1の発光手段 （2 6 a) による発光を停止するための手段を含む、 請求項 4に記載の電気掃除機。  The vacuum cleaner according to claim 4, further comprising: means for stopping light emission by the first light emitting means (26a) in response to the detection by the detection means (36).
6. 前記位相制御手段 （300) は、 前記抵抗体 （30) と、 前記蓄電手段 とを含む経路が導通するか否かを検知するための第 2のフォト力ブラ （28) を さらに含み、  6. The phase control means (300) further includes a second photo power blur (28) for detecting whether or not a path including the resistor (30) and the power storage means is conductive.
前記第 2のフォト力ブラ （28) は、  The second photo power bra (28)
前記抵抗体 （30) と、 前記蓄電手段とを含む経路上に設けられる第 2の発光 手段 （28 a) と、  A second light emitting means (28a) provided on a path including the resistor (30) and the power storage means;
前記第 2の発光手段 （28 a) による光に応じて、 導通および遮断のうちいず れかとなる第 2の導通経路 （28 b) とを含み、  A second conduction path (28b) that is either conductive or blocked according to the light emitted by the second light emitting means (28a);
前記スィッチ制御手段 (24) は、 前記第 2の導通経路 （28 b) の前記導通 の検知を行ない、 The switch control means (24) is configured to control the conduction of the second conduction path (28b). Detection of
前記第 2の導通経路 （28 b) の前記導通に応じて、 第 1の所定時間、 前記第 1の発光手段 （26 a) による前記発光を停止するための手段を含む、 請求項 5 に記載の電気掃除機。  The device according to claim 5, further comprising: means for stopping the light emission by the first light emitting means (26a) for a first predetermined time according to the conduction of the second conduction path (28b). Vacuum cleaner.
7. 前記電気掃除機 （100) は、  7. The vacuum cleaner (100)
前記抵抗体 （30) と、 前記蓄電手段とを含む経路を導通させるための操作手 段 （8) と、  An operation means (8) for conducting a path including the resistor (30) and the power storage means;
前記検知手段 （36) による前記検知に応じて、 警報表示を行なうための警報 表示手段 (38) と、  Alarm display means (38) for displaying an alarm in response to the detection by the detection means (36);
前記警報表示が停止されてから予め設定された時間の間において、 前記導通が 検知されると、 前記導通が検知されてから第 2の所定時間が経過するまでの間、 前記検知手段 （36) による検知に関わらず前記第 1の発光手段 （26 a) によ る前記発光を行なうための手段とをさらに含む、 請求項 6に記載の電気掃除機。  If the continuity is detected during a preset time after the alarm display is stopped, the detection means (36) is provided until a second predetermined time elapses after the continuity is detected. The vacuum cleaner according to claim 6, further comprising: means for performing the light emission by the first light emitting means (26a) regardless of detection by the first light emitting means.
8. 前記スィッチ制御手段 (24) は、 前記第 2の所定時間経過後に、 前記 検知手段 （3 6) による検知に応じて、 前記第 1の発光手段 （26 a) による前 記発光を停止するための手段をさらに含む、 請求項 7に記載の電気掃除機。  8. The switch control means (24) stops the light emission by the first light emitting means (26a) in response to the detection by the detecting means (36) after the second predetermined time has elapsed. The vacuum cleaner according to claim 7, further comprising means for:
9. 前記スィッチ制御手段 (24) は、 前記第 2の所定時間、 前記警報表示 を停止するための手段をさらに含む、 請求項 7に記載の電気掃除機。  9. The vacuum cleaner according to claim 7, wherein the switch control means (24) further includes means for stopping the alarm display for the second predetermined time.
1 0. 前記スィッチ制御手段 (24) は、 前記検知手段 (36) による前記 検知に応じて、 前記第 1の発光手段 (26 a) による前記発光を停止する場合、 前記第 2の導通経路 （28 b) の前記導通が検知される間、 前記第 1の発光手段 (26 a) による前記発光の停止を継続するための手段をさらに含む、 請求項 5 に記載の電気掃除機。  10. When the switch control means (24) stops the light emission by the first light emitting means (26a) in response to the detection by the detection means (36), the switch control means (24) The vacuum cleaner according to claim 5, further comprising: means for continuing to stop the light emission by the first light emitting means (26a) while the conduction of step 28b) is detected.
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EP3678786A4 (en) * 2017-09-05 2021-06-02 Husqvarna AB Separator and method of operating a separator
US11185808B2 (en) 2017-09-05 2021-11-30 Husqvarna Ab Separator and method of operating a separator

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KR20050105251A (en) 2005-11-03
JP2004261239A (en) 2004-09-24
KR100708366B1 (en) 2007-04-18
CN1753638A (en) 2006-03-29
WO2004075711A8 (en) 2005-04-07

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