WO2013179715A1 - 充電式電気掃除機 - Google Patents
充電式電気掃除機 Download PDFInfo
- Publication number
- WO2013179715A1 WO2013179715A1 PCT/JP2013/056650 JP2013056650W WO2013179715A1 WO 2013179715 A1 WO2013179715 A1 WO 2013179715A1 JP 2013056650 W JP2013056650 W JP 2013056650W WO 2013179715 A1 WO2013179715 A1 WO 2013179715A1
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- WIPO (PCT)
- Prior art keywords
- motor
- dust
- control unit
- unit
- dust collection
- Prior art date
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Classifications
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- 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
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- 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
-
- 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
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
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- 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
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/19—Means for monitoring filtering operation
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- 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
- A47L9/2831—Motor parameters, e.g. motor load or speed
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- 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
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- 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
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
-
- 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
- A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof
- A47L9/2884—Details of arrangements of batteries or their installation
-
- 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
- A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
Definitions
- the present invention relates to a rechargeable vacuum cleaner, and more particularly to a self-propelled or cordless rechargeable vacuum cleaner.
- an electric blower that applies suction negative pressure to the dust collection chamber, a rechargeable power source for supplying a drive current to the electric blower, a current detection means for detecting the drive current, Control means for controlling the drive current supplied to the electric blower to be constant by controlling the duty ratio of the drive current based on the detection current detected by the current detection means, and the control means After the duty ratio reaches a predetermined value, when the current value detected by the current detection means falls below a threshold value, the value of the drive current supplied to the electric blower is reduced to a set value.
- a rechargeable vacuum cleaner that stops the electric blower is known (for example, see Patent Document 1).
- the magnitude of the dust collection amount is detected by using the characteristic that the current of the electric blower decreases conversely when the dust collection amount increases.
- the current of the electric blower is controlled to be constant with respect to an increase in the amount of dust collection, the electric vacuum is collected from the change in the current of the electric blower. There was a problem that it was difficult to detect the amount of dust.
- the present invention has been made in consideration of such circumstances, and provides a rechargeable vacuum cleaner that can easily detect the amount of dust collection and warn of the fullness of dust collection.
- the present invention provides a blower that sucks dust-containing air from a suction port, a motor that drives the blower, a dust collecting unit that filters the sucked air and captures dust, a storage battery, and the storage battery in the motor.
- a switching element to be connected; a current detection part for detecting a current Ia flowing through the motor; an alarm part for warning that the dust collection amount of the dust collection part is full; and operating the switching element to drive the motor, And a control unit that detects the terminal voltage Vb of the storage battery and the current Ia and activates the alarm unit if Vb ⁇ V 1 and Ia ⁇ I 1 (V 1 and I 1 are preset values).
- a rechargeable vacuum cleaner is provided.
- FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. It is a perspective view of the bottom face side of the self-propelled cleaner shown in FIG.
- FIG. 3 is a view corresponding to FIG.
- a rechargeable vacuum cleaner includes a blower that sucks air containing dust from a suction port, a motor that drives the blower, a dust collecting unit that filters the sucked air and captures dust, a storage battery, A switching element that connects the storage battery to the motor, a current detection unit that detects a current Ia flowing through the motor, an alarm unit that warns that the dust collection amount of the dust collection unit is full, The motor is driven to detect the terminal voltage Vb of the storage battery and the current Ia. If Vb ⁇ V 1 and Ia ⁇ I 1 (where V 1 and I 1 are preset values), the alarm unit is activated. And a control unit for controlling.
- the control unit may continue driving the motor even after the alarm unit is activated.
- a manual input unit that instructs the control unit to perform a dust collection amount check operation may be further provided, and the control unit may receive the output from the manual input unit and drive the motor for a predetermined time. The control unit may drive the motor for a predetermined time after the charging of the storage battery is completed.
- a lithium ion battery for example, a lithium ion battery, a nickel metal hydride battery, a Ni—Cd battery, or the like whose terminal voltage decreases with discharge can be used.
- a permanent magnet excitation DC motor can be suitably used.
- the rechargeable vacuum cleaner according to the present invention will be described using an embodiment of a self-propelled cleaner shown in the drawings.
- the present invention is not limited, and includes a cordless vacuum cleaner that is manually moved by a user.
- FIG. 1 Top perspective view of a configuration diagram 1 of the self-propelled cleaner self-propelled cleaner according to an embodiment of the present invention
- Figure 2 is A-A sectional view taken along line of FIG. 1
- the self 3 is shown in
- Figure 1 4 is a bottom perspective view of the traveling cleaner
- FIG. 4 is a view corresponding to FIG. 2 showing a state where the dust collecting device is taken out
- FIG. 5 is a block diagram showing a control system of the self-running cleaner shown in FIG.
- the self-propelled cleaner 1 self-propells the floor surface (surface to be cleaned) F (FIG. 2) at the place where it is installed.
- the floor F is configured to clean the floor surface by sucking air containing dust on the surface F and exhausting the air from which the dust has been removed.
- the self-propelled cleaner 1 includes a disk-shaped housing 2, and a rotating brush 9, a side brush 10, a dust collector (dust collector) 30, an electric blower 22, and a pair are provided inside and outside the housing 2.
- the drive wheel 29, the rear wheel 26 and the front wheel 27, various sensors, a control unit, and other components are provided.
- a portion where the front wheel 27 is disposed is a front portion
- a portion where the rear wheel 26 is disposed is a rear portion
- a portion where the dust collecting device 30 is disposed is an intermediate portion.
- the housing 2 opens and closes when the dust collector 30 is taken in and out of the housing 2 and the bottom plate 2a having a suction port 6 formed at a position near the boundary with the intermediate portion in the front portion.
- a top plate 2b having a lid portion 3 at the intermediate portion, and a side plate 2c provided along the outer periphery of the bottom plate 2a and the top plate 2b are provided.
- the bottom plate 2a is formed with a plurality of holes for projecting the lower portions of the front wheel 27, the pair of drive wheels 29 and the rear wheel 26 from the inside of the housing 2 to the outside, and the boundary between the front portion and the middle portion of the top plate 2b.
- An exhaust port 7 is formed in the.
- the side plate 2c is divided into two parts in the front-rear direction, and the side front part is provided to be displaceable so as to function as a bumper.
- a power switch (push button switch) 62 a start switch operated by the user, a switch for checking the fullness of the dust collection amount described later,
- an input unit (input panel) 63 provided with a switch for inputting various conditions, and a display unit (display panel) 64 for displaying a dust collection amount full alarm or a vacuum cleaner status are provided.
- the housing 2 has a front storage chamber R ⁇ b> 1 for storing the electric blower 22 in the front portion and an intermediate storage chamber R ⁇ b> 2 for storing the dust collector 30 in the intermediate portion.
- the rear portion has a rear storage chamber R3 for storing the control board 15 of the control portion, the battery 14 (storage battery), the charging terminal 4, etc., and the suction path 11 and the exhaust path 12 near the boundary between the front portion and the intermediate portion. have.
- the suction passage 11 communicates the suction port 6 and the intermediate storage chamber R2, and the exhaust passage 12 communicates the intermediate storage chamber R2 and the front storage chamber R1.
- Each of the storage chambers R1, R2, R3, the suction path 11 and the exhaust path 12 is partitioned by a partition wall 39 provided inside the housing 2 and constituting these spaces.
- the pair of driving wheels 29 are fixed to a pair of rotating shafts that intersect at right angles with a center line C (FIG. 2) passing through the center of the casing 2, and the casing 2 is rotated when the pair of driving wheels 29 rotate in the same direction.
- the housing 2 rotates around the center line C.
- the rotation shafts of the pair of drive wheels 29 are coupled so that rotational force can be obtained individually from the pair of drive wheel motors, and each motor is fixed to the bottom plate 2a of the housing directly or via a suspension mechanism. ing.
- the front wheel 27 is made of a roller and contacts the step appearing on the course, and the housing 2 is slightly lifted from the floor F (FIG. 2) on which the driving wheel 29 contacts the ground so that the housing 2 can easily get over the step.
- a part of the bottom plate 2a is rotatably provided.
- the rear wheel 26 is a free wheel, and is rotatably provided on a part of the bottom plate 2a of the housing 2 so as to be in contact with the floor surface F to which the driving wheel 29 is grounded.
- the pair of driving wheels 29 is disposed in the middle in the front-rear direction with respect to the housing 2, the front wheels 27 are lifted from the floor surface F, and the weight of the self-propelled cleaner 1 is set to the pair of driving wheels 29 and the rear wheels 26.
- the weight is distributed in the front-rear direction with respect to the housing 2 so that it can be supported. Thereby, the dust in front of the course can be guided to the suction port 6 without being blocked by the front wheel 27.
- the suction port 6 is an open surface of the concave portion 8 formed on the bottom surface (bottom plate 2a) of the housing 2 so as to face the floor surface F, and a bottom plate 60 (see FIG. 3) as a suction body is formed in the concave portion 8.
- the suction port 6 is formed by being fitted.
- a rotating brush 9 that rotates about an axis parallel to the bottom surface of the housing 2 is provided in the recess 8, and a side that rotates about a rotation axis perpendicular to the bottom plate 2 a is provided on the left and right sides of the recess 8.
- a brush 10 is provided.
- the rotating brush 9 is formed by implanting a brush spirally on the outer peripheral surface of a roller that is a rotating shaft.
- the side brush 10 is formed by providing a brush bundle radially at the lower end of the rotating shaft.
- the rotating shaft of the rotating brush 9 and the rotating shaft of the pair of side brushes 10 are pivotally attached to a part of the bottom plate 2a of the housing 2, and a brush drive motor (not shown) provided in the vicinity thereof and the brush
- the rotation of the drive motor is connected through a power transmission mechanism including a pulley and a belt.
- a brushed brush 65 as a blade-like capturing member is provided at the rear edge of the suction port 6 for capturing dust that has not been sucked by the suction port 6 and preventing dust from being scattered. ing.
- a floor surface detection sensor 13 for detecting the floor surface is disposed between the bottom surface of the housing 2 and the front wheel 27, and a similar floor surface is disposed in front of the side portions of the left and right drive wheels 29.
- a detection sensor 19 is arranged. When the downstairs are detected by the floor surface detection sensor 13, the detection signal is transmitted to the control unit, and the control unit controls both the drive wheels 29 to stop. In addition, when the floor detection sensor 13 breaks down, the floor detection sensor 19 can detect the descending stair and stop both driving wheels 29, so that the self-propelled cleaner 1 is prevented from falling to the descending stair. Has been.
- the detection signal may be transmitted to the control unit, and the control unit may control the drive wheel 29 to travel while avoiding the descending staircase.
- the control board 15 is provided with a control circuit such as a microcomputer that controls the self-propelled cleaner 1 and a motor driver circuit that drives each element such as the drive wheel 29, the rotating brush 9, the side brush 10, and the electric blower 22. It has been.
- a charging terminal 4 for charging the battery 14 is provided at the rear end of the side plate 2 c of the housing 2.
- the self-propelled cleaner 1 that cleans the room while self-propelled returns to the charging stand 40 (FIG. 2) installed in the room. Thereby, the charging terminal 4 contacts the terminal part 41 provided in the charging stand 40, and the battery 14 is charged.
- the charging stand 40 connected to a commercial power source (outlet) is usually installed along the side wall S in the room.
- the dust collector 30 is normally stored in the intermediate storage chamber R2 above the axis of the rotation shaft of the drive wheels 29 in the housing 2, and the dust collected in the dust collector 30 is collected.
- the lid 3 of the housing 2 can be opened and the dust collector 30 can be taken in and out.
- the dust collecting device 30 includes a dust collecting container 31 having an opening, a filter part 33 that covers the opening of the dust collecting container 31, and a cover part 32 that covers the filter part 33 and the opening of the dust collecting container 31. ing.
- the cover part 32 and the filter part 33 are pivotally supported by the opening edge of the front side of the dust collecting container 31 so that rotation is possible.
- An inflow path 34 communicating with the suction path 11 of the housing 2 and the housing 2 in a state where the dust collecting device 30 is housed in the intermediate storage chamber R2 of the housing 2 are disposed at the front portion of the side wall of the dust collecting container 31.
- An exhaust passage 35 communicating with the exhaust passage 12 is provided.
- the control system that performs drive control of the entire self-propelled cleaner 1 includes a control unit 54 that includes a microcomputer including a CPU 51, a ROM 52, and a RAM 53, and drives for driving the two drive wheels 29.
- the DC motor 69 is a permanent magnet excitation DC motor.
- the output power of the battery 14 is supplied to the drive wheel motors 55 and 56 via the motor driver circuit 57, to the brush drive motor 58 via the motor driver circuit 59, and via the switching element 68.
- the control unit 54 In addition to being supplied to the DC motor 69, it is also supplied to the control unit 54, the input unit 63, the display unit 64, and the sensor control unit 66.
- the CPU 51 of the control unit 54 is a central processing unit that performs arithmetic processing on signals received from the input unit 63, the shunt resistor 61, and various sensors 65 based on a program stored in advance in the ROM 52, and a motor driver circuit. 57, 59, the switching element 68, the display unit 64, and the like.
- the RAM 53 temporarily stores various commands input by the user from the input unit 63, various operating conditions of the self-propelled cleaner 1, the outputs of the various sensors 65 and the shunt resistor 61, and the like. .
- the RAM 53 can store a travel map of the self-propelled cleaner 1.
- the travel map is information relating to travel such as the travel route and travel speed of the self-propelled cleaner 1, and is stored in advance in the RAM 53 by the user or automatically during the cleaning operation of the self-propelled cleaner 1 itself. Can be recorded.
- the various sensors 65 include an odor sensor, a humidity sensor, a human sensor, a contact sensor and the like in addition to the floor detection sensors 13 and 19.
- the odor sensor detects the odor around the outside of the housing 2.
- the odor sensor for example, a semiconductor type or catalytic combustion type odor sensor can be used.
- the odor sensor is arranged in a state exposed from the side plate 2c or the top plate 2b of the housing 2 to the outside.
- the control unit 54 obtains odor information around the outside of the housing 2 based on an output signal from the odor sensor.
- the humidity sensor detects the humidity around the outside of the housing 2.
- the humidity sensor for example, a capacitance type or electric resistance type humidity sensor using a polymer moisture sensitive material can be used.
- a humidity sensor is disposed in a state exposed from the side plate 2c or the top plate 2b of the housing 2 to the outside.
- the control unit 54 obtains humidity information around the outside of the housing 2 based on an output signal from the humidity sensor.
- the human sensor for example, a human sensor that detects the presence of a person using infrared rays, ultrasonic waves, visible light, or the like can be used.
- a human sensor is disposed in a state exposed from the side plate 2c or the top plate 2b of the housing 2 to the outside.
- the control unit 54 obtains presence information of people around the outside of the housing 2 based on an output signal from the human sensor.
- the contact sensor is disposed, for example, at the front portion of the side plate 2c of the housing 2 in order to detect that the self-propelled cleaner 1 has come into contact with an obstacle during traveling.
- the control unit 54 obtains the presence information of the obstacle around the outside of the housing 2 based on the output signal from the contact sensor.
- the electric blower 22, the drive wheel 29, the rotating brush 9, and the side brush 10 are driven by a cleaning operation command.
- the casing 2 self-propells within a predetermined range and removes dust on the floor surface F from the suction port 6. Inhale air containing.
- the dust on the floor surface F is scraped up by the rotation of the rotating brush 9 and guided to the suction port 6. Further, the dust on the side of the suction port 6 is guided to the suction port 6 by the rotation of the side brush 10.
- Air containing dust sucked into the housing 2 from the suction port 6 passes through the suction passage 11 of the housing 2 and the inflow passage 34 of the dust collector 30 as indicated by an arrow A1 in FIG. It flows into the dust collecting container 31.
- the airflow that has flowed into the dust collecting container 31 passes through the filter portion 33, flows into the space between the filter portion 33 and the cover portion 32, and is discharged to the exhaust passage 12 of the housing 2 through the discharge passage 35.
- the dust contained in the airflow in the dust collecting container 31 is captured by the filter unit 33, so that the dust accumulates in the dust collecting container 31.
- the airflow flowing into the exhaust passage 12 of the housing 2 from the dust collector 30 flows into the front storage chamber R1 as indicated by the arrow A2 in FIG. 2, and flows through the first exhaust passage and the second exhaust passage (not shown). .
- clean air dust-removed by the filter unit 33 is released from the exhaust port 7 provided on the upper surface of the housing 2 obliquely upward at the rear. Thereby, the cleaning on the floor surface F is performed.
- exhaust is performed obliquely upward from the exhaust port 7 to the rear, so that the dust on the floor surface F is prevented from being rolled up, and the cleanliness of the room can be improved.
- the self-propelled cleaner 1 is centered by the left and right drive wheels 29 rotating forward in the same direction, moving forward, moving backward in the same direction, moving backward, and rotating in opposite directions.
- Turn around line C For example, when the self-propelled cleaner 1 reaches the periphery of the cleaning area or collides with an obstacle on the course, the driving wheel 29 stops and the left and right driving wheels 29 rotate in opposite directions to each other. change. Thereby, the self-propelled cleaner 1 can be self-propelled while avoiding obstacles in the entire installation place or the entire desired range.
- the self-propelled cleaner 1 is grounded at three points, the left and right drive wheels 29 and the rear wheel 26, so that the weight of the self-propelled cleaner 1 is balanced so that the rear wheel 26 does not lift from the floor F even if it suddenly stops during forward movement. Allocated. Therefore, it is prevented that the self-propelled cleaner 1 stops suddenly before the descending stairs while moving forward, and the self-propelled cleaner 1 is tilted forward and falls to the descending stairs.
- the drive wheels 29 are formed by fitting rubber tires having grooves into the wheels so that they do not slip even when suddenly stopped.
- the dust collector 30 is arrange
- the self-propelled cleaner 1 returns to the charging stand 40 (FIG. 2) when cleaning is completed. Thereby, the charging terminal 4 contacts the terminal part 41 and the battery 14 is charged.
- FIG. 6 shows changes in the terminal voltage Vb with respect to the discharge time T when the battery (storage battery) 14 is discharged at a constant current.
- the discharge time T elapses, that is, as the remaining battery level decreases, the terminal electrons Vb gradually decrease to V 0 , V 1 , V 2 , V 3, and finally the discharge end voltage (re-entry). It can be seen that the chargeable voltage decreases to Vs.
- the battery 14 is a lithium ion battery, a nickel metal hydride battery, or a Ni—Cd battery.
- FIG. 7 shows the DC motor 69 with respect to the dust collection amount Q of the dust collector (dust collector) 30 when the armature voltage Va of the DC motor 69 drops to V 0 , V 1 , V 2 , V 3 .
- the change of the armature current Ia is shown.
- the armature current Ia decreases as the dust collection amount Q increases toward the maximum value Qm (full).
- the armature current Ia for the same dust collection amount Q decreases as the armature voltage Va decreases.
- step S1 when the power switch 62 is turned on in step S1, it is determined whether or not the start switch of the input unit 63 is turned on (step S2).
- step S2 When the start switch is turned ON, the switching element 68 is turned ON, the DC motor 69 is driven, the electric blower 22 is started and cleaning is started (step S4), the terminal voltage Vb of the battery 14 and the armature of the DC motor 69 are started.
- the current Ia is detected (step S5).
- Step S6 and S7 If Vb ⁇ V 1 and Ia ⁇ I 1 (steps S6 and S7), it is considered that the dust collection amount of the dust collector (dust collector) 30 is full, and an alarm is displayed on the display unit 64. (Step S8). Thereafter, the driving of the DC motor 69 is continued, and when “end of cleaning” is instructed from the program of the input unit 63 or the ROM 52, the DC motor 69, that is, the electric blower 22 is stopped (steps S9 and S10).
- step S2 the start switch of the input unit 63 is not turned on. That is, the start of the “full check” is not manually started by the input unit 63 or after the battery 14 is completely charged.
- step S3 the DC motor 69 is driven (step S11).
- step S12 When the time t (for example, 60 seconds) has not elapsed after the driving of the DC motor 69 (step S12), Vb and Ia are detected (step S13).
- step S14 When Vb ⁇ V 1 and Ia ⁇ I 1 (steps S14 and S15), it is considered that the dust collection amount is full, and an alarm is displayed on the display unit 64 (step S16). Thereafter, when time t has elapsed, DC motor 69 (electric blower 22) stops (step S10), and the “full check” operation ends.
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Abstract
Description
集塵量のチェック動作を制御部に指示する手動入力部をさらに備え、制御部は前記手動入力部からの出力をうけて、前記モータを所定時間だけ駆動させてもよい。
前記制御部は、前記蓄電池の充電完了後に前記モータを所定時間だけ駆動させるようにしてもよい。
前記モータには、永久磁石励磁直流モータを好適に用いることができる。
図1はこの発明の実施形態に係る自走式掃除機の上面斜視図、図2は図1のA-A矢視断面図、図3は図1に示される自走式掃除機の底面斜視図、図4は集塵装置が取り出された状態を示す図2対応図、図5は図1に示される自走式掃除機の制御系を示すブロック図である。
自走式掃除機1は、円盤状の筐体2を備え、この筐体2の内部および外部に、回転ブラシ9、サイドブラシ10、集塵装置(集塵部)30、電動送風機22、一対の駆動輪29、後輪26および前輪27、各種センサ、および制御部等の構成要素が設けられている。
この自走式掃除機1において、前輪27が配置されている部分が前方部、後輪26が配置されている部分が後方部、集塵装置30が配置されている部分が中間部である。
後輪26は自在車輪からなり、駆動輪29が接地する床面Fと接地するよう筐体2の底板2aの一部に回転可能に設けられている。
また、図3に示すように吸込口6の後方の縁には吸込口6で吸い込まれなかった塵埃を捕捉し塵埃の散乱を防止するためのブレード状の捕捉部材としての起毛ブラシ65が設けられている。
なお、直流モータ69には、永久磁石励磁直流モータが用いられる。
自走式掃除機1は、掃除が終了すると充電台40(図2)に帰還する。これにより、充電端子4が端子部41に接してバッテリー14が充電される。
この発明の特徴の1つである集塵量検知手段、とくに、集塵満了検知手段について以下に説明する。
図6はバッテリー(蓄電池)14を一定電流で放電したときの放電時間Tに対する端子電圧Vbの変化を示す。図6から、放電時間Tの経過、つまり電池残量の低下に伴って、端子電子Vbは、V0、V1、V2、V3と徐々に低下し、最終的に放電終止電圧(再充電可能電圧)Vsまで低下することが分かる。なお、バッテリー14には、リチウムイオン電池、ニッケル水素電池又はNi-Cd電池が用いられる。
(1)集塵量Qが最大値Qm(満杯)に向かって多くなるほど電機子電流Iaは低下する、
(2)電機子電圧Vaが低下するほど、同じ集塵量Qに対する電機子電流Iaが低下する、
(3)Va=V0では、Ia=I1のとき、集塵量Q=Qm(満杯)になる。しかし、VaがV1、V2、V3と低下するに従って、Ia=I1のときの集塵量Qが徐々にQmより小さくなる、
ということが分かる。
Ia≦I1、Va≧V1という条件を予め設定する。
なお、図5に示すようにバッテリー14と直流モータ69はスイッチング素子68で直結されるため、バッテリー14の端子電圧Vb=直流モータ69の電機子電圧Vaである。従って、
Ia≦I1、Vb≧V1
という条件を満たしたときに集塵量が満杯であるとするものである。
まず、ステップS1において、電源スイッチ62が投入されると、入力部63の起動スイッチがONされたか否かが判別される(ステップS2)。起動スイッチがONされると、スイッチング素子68がONとなり直流モータ69が駆動されて電動送風機22が起動して清掃が開始され(ステップS4)、バッテリー14の端子電圧Vbと直流モータ69の電機子電流Iaとが検出される(ステップS5)。
以上説明したように電動送風機については、直流モータを例に説明した。しかし、交流モータ、そのための回転モータでも同時にして実施できることはもちろんである。
また自走式掃除機にて説明したが、当然のこととして、特許文献1に記載されるような充電式の電気掃除機においても同様に実施できる。
2 筐体
2a 底板
2b 天板
2c 側板
3 蓋部
4 充電端子
6 吸込口
7 排気口
8 凹部
9 回転ブラシ
10 サイドブラシ
11 吸引路
12 排気路
13 床面検知センサ
14 バッテリー(蓄電池)
15 制御基板
19 床面検知センサ
22 電動送風機
26 後輪
27 前輪
29 駆動輪
30 集塵装置(集塵部)
31 集塵容器
32 カバー部
33 フィルタ部
34 流入路
35 排出路
39 仕切り壁
40 充電台
41 端子部
51 CPU
52 ROM
53 RAM
54 制御部
55 駆動輪用モータ
56 駆動輪用モータ
57 モータドライバ回路
58 ブラシ駆動モータ
59 モータドライバ回路
60 ボトムプレート
61 シャント抵抗器
62 電源スイッチ
63 入力部(入力パネル)
64 表示部(表示パネル)
65 起毛ブラシ
66 センサ制御ユニット
67 各種センサ
68 スイッチング素子
69 直流モータ
R1 前方収納室
R2 中間収納室
C 中心線
F 床面
S 側壁
R3 後方収納室
Claims (4)
- 塵を含む空気を吸引口から吸引する送風機と、送風機を駆動するモータと、吸引された空気をろ過して塵を捕獲する集塵部と、蓄電池と、前記蓄電池を前記モータに接続するスイッチング素子と、前記モータに流れる電流Iaを検出する電流検出部と、集塵部の集塵量の満杯を警報する警報部と、前記スイッチング素子を作動して前記モータを駆動させ、前記蓄電池の端子電圧Vbと前記電流Iaとを検出し、Vb≧V1、Ia≦I1(V1、I1は予め設定された値)であれば前記警報部を作動させる制御部とを備える充電式電気掃除機。
- 前記制御部は、前記警報部を作動させた後も、前記モータの駆動を継続させる請求項1記載の充電式電気掃除機。
- 集塵量のチェック動作を制御部に指示する手動入力部をさらに備え、制御部は前記手動入力部からの出力をうけて、前記モータを所定時間だけ駆動させる請求項1記載の充電式電気掃除機。
- 前記制御部は、前記蓄電池の端子電圧Vbが、Vb<V1の時、前記モータに流れる電流Iaが、Ia<I1であっても、警報部を作動させない請求項1または2に記載の充電式電気掃除機。
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CN201380027439.7A CN104363809B (zh) | 2012-05-31 | 2013-03-11 | 充电式电动吸尘器 |
US14/388,269 US9044127B2 (en) | 2012-05-31 | 2013-03-11 | Charging-type electric vacuum cleaner |
KR1020147030424A KR101635304B1 (ko) | 2012-05-31 | 2013-03-11 | 충전식 전기 청소기 |
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US (1) | US9044127B2 (ja) |
JP (1) | JP5957296B2 (ja) |
KR (1) | KR101635304B1 (ja) |
CN (1) | CN104363809B (ja) |
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EP3116367B1 (en) * | 2014-03-12 | 2018-02-28 | Aktiebolaget Electrolux | Bagless vacuum cleaner with filter cleaning member |
CN106535729A (zh) * | 2014-06-30 | 2017-03-22 | 松下知识产权经营株式会社 | 自主行走型吸尘器 |
KR102312095B1 (ko) * | 2014-12-26 | 2021-10-13 | 엘지전자 주식회사 | 자율 이동 청소기 및 이의 제어 방법 |
CN106235974B (zh) * | 2016-08-30 | 2019-08-06 | 北京小米移动软件有限公司 | 自主清洁设备及自主清洁设备的灰尘监测方法 |
JP6917692B2 (ja) * | 2016-10-06 | 2021-08-11 | 日立グローバルライフソリューションズ株式会社 | 自走式電気掃除機並びに塵埃センサユニット及びダストケース |
JP1594316S (ja) | 2017-04-11 | 2018-01-09 | ||
JP1594314S (ja) | 2017-04-11 | 2018-01-09 | ||
US10779695B2 (en) * | 2017-12-29 | 2020-09-22 | Irobot Corporation | Debris bins and mobile cleaning robots including same |
USD998268S1 (en) * | 2019-06-14 | 2023-09-05 | Sharkninja Operating Llc | Robot vacuum |
CN110916578A (zh) * | 2019-12-18 | 2020-03-27 | 邦辰环保科技(苏州)有限公司 | 一种吸尘器的控制方法、系统及装置 |
USD1006358S1 (en) | 2020-09-03 | 2023-11-28 | Sharkninja Operating Llc | Robot vacuum cleaner |
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Publication number | Publication date |
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KR101635304B1 (ko) | 2016-06-30 |
US9044127B2 (en) | 2015-06-02 |
JP5957296B2 (ja) | 2016-07-27 |
CN104363809A (zh) | 2015-02-18 |
JP2013248134A (ja) | 2013-12-12 |
CN104363809B (zh) | 2016-12-07 |
KR20140140111A (ko) | 2014-12-08 |
US20150059119A1 (en) | 2015-03-05 |
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