JP2012024173A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner having a dust remover for removing dust adhering to an inner surface of a dust collecting container by shaking the dust collecting container, to carry out the purposes of effectively removing dust adhering to an inner wall and bottom surface of a dust collecting chamber.SOLUTION: The vacuum cleaner includes: a dust collecting container 3 installed removably to a body; a dust remover 29 that removes dust adhering to an inside of the dust collecting container 3; a dust removing motor 14 that drives the dust remover 29; an electric double layer capacitor 21 provided in the dust collecting container 3; a charger 24 that charges the electric double layer capacitor; a charging power source 30 that drives the dust removing motor 14 by the electric energy of the electric double layer capacitor 21 when the dust collecting container 3 is detached from the body of the vacuum cleaner; and a dust removing power source 32 that drives the dust removing motor 14 when the dust collecting container 3 is attached to the body of the vacuum cleaner. The voltage of the charging power source 30 is different from that of the dust removing power source 32.

Description

  The present invention relates to an electric vacuum cleaner having dust removing means for removing dust adhering to the inner surface of a dust collecting container by vibrating the dust collecting container.

  Conventionally, as a vacuum cleaner of this type, a pleat portion of a substantially flat dust collecting means (pleated dust collecting filter) is sequentially hit by moving an arm (dust removing means) driven by a motor having a speed reduction mechanism. There is one that suppresses a reduction in suction performance by applying vibrations and shaking fine dust adhering to the filter surface (see, for example, Patent Document 1).

JP 2004-358032 A

  However, although the dust removal effect on the filter surface can be expected in the conventional configuration, the dust removed from the filter surface adheres to the inner wall and the bottom surface of the dust collection chamber. Dust separation was not considered. In addition, the motor-driven dust removal operation generates a large amount of dust removal noise, especially in the case of vacuum cleaners that automatically filter dust when power is turned on and after the operation of the vacuum cleaner is stopped. Since the dust removal operation is performed even when the user does not intend, the user may feel uncomfortable due to the dust removal sound.

  The present invention solves the above-described conventional problems, and can remove not only dust on the filter surface but also dust attached to the inside and bottom surfaces of the dust collection chamber. Further, when performing filter dust removal automatically, That is, it is possible to reduce the dust removal sound during the dust removal operation performed even when the user does not intend.

  In order to solve the conventional problems, a vacuum cleaner of the present invention is detachably attached to a vacuum cleaner body and collects dust, and removes dust attached to the dust collection container. A dust removing means; a dust removing motor for driving the dust removing means; an electric double layer capacitor provided in the dust collecting container; a charging means for charging the electric double layer capacitor with electric energy; and A charging power source that drives the dust removal motor by the electric energy of the electric double layer capacitor when removed from the vacuum cleaner body, and a dust removal drive that drives the dust removal motor when the dust collecting container is attached to the vacuum cleaner body A power source is provided, and the voltage of the charging power source is different from the voltage of the dust removing power source.

  As a result, dust can be removed from the top of the trash can when the dust container is thrown away, so that not only the filter surface of the dust collector, but also dust attached to the inner wall and bottom of the dust collector can be removed. When the dust container is attached to the main body of the vacuum cleaner, dust is automatically removed when the power is turned on or when the operation is stopped, that is, when the dust removal operation is performed even when the user does not intend. Can also be reduced.

The vacuum cleaner of the present invention can efficiently remove not only the filter surface of the dust collecting container but also the dust attached to the inner wall and bottom surface of the dust collecting container. It is also possible to reduce the dust removal sound during the dust removal operation that is performed even when not.

The perspective external view of the electric vacuum cleaner in Embodiment 1 of this invention Perspective external view of the electric vacuum cleaner in the same embodiment Exploded perspective view of the dust container in the same embodiment Control block diagram in the same embodiment Schematic of the dust collection container at the time of garbage disposal in the same embodiment Control block diagram in Embodiment 2 of the present invention

  A first invention is a dust collection container that is detachably attached to a vacuum cleaner body, collects dust, a dust removal means that removes dust attached to the dust collection container, and a dust removal motor that drives the dust removal means An electric double layer capacitor provided in the dust collecting container, a charging means for charging the electric double layer capacitor with electric energy, and the electric double layer capacitor when the dust collecting container is removed from the main body of the vacuum cleaner. A charging power source for driving the dust removal motor by the electric energy of the multilayer capacitor; and a dust removal power source for driving the dust removal motor when the dust collecting container is attached to a vacuum cleaner body, the voltage of the charging power source and the dust removal power source. Since the power supply voltage is different, dust can be removed with a dust collection container alone, and dust can be removed on the trash bin when throwing away trash. Not only Luther surface, dust adhered to the dust collecting means the inner wall and the bottom surface can also be removed.

  In addition, by setting the voltage of the charging power supply and the voltage of the dust removal power supply to different values, filter dust removal is automatically performed when the power is turned on or when the operation is stopped while the dust collecting container is attached to the main body of the vacuum cleaner. The dust removal noise can be reduced by setting the optimum drive voltage of the dust removal motor in each of the dust removal by the dust removal power source and the dust removal by the charging power source performed when the dust collecting container is removed from the main body of the vacuum cleaner. can do.

  In the second invention, in particular, the voltage of the dust removing power supply is made lower than the voltage of the charging power supply of the first invention. As a result, when dust is automatically removed when the power is turned on or when the operation is stopped with the dust container attached to the main body of the vacuum cleaner, that is, when the dust removal operation is performed even when the user does not intend. Since the dust removal motor is driven by the voltage of the dust removal power source, the drive power is suppressed, and dust removal noise can be reduced.

  In the third invention, in particular, the voltage of the charging power supply is made lower than the voltage of the dust removing power supply of the first invention. As a result, when removing dust from the dust container alone, the user holds the dust container on the trash can etc. by hand, so vibration due to dust removal is directly transmitted to the user's hand. By reducing the voltage of the power source, it is possible to remove dust attached to the inner wall and bottom surface of the dust collecting means while suppressing vibration transmitted to the user by dust removal.

  In particular, the fourth invention includes motor voltage detecting means for detecting a voltage applied to the dust removal motor of any one of the first to third inventions, and the voltage is applied to the electric double layer capacitor according to the detected voltage. The charging voltage is varied. As a result, internal resistance increases due to aging deterioration of the electric double layer capacitor, and voltage drop occurs due to the internal resistance, so that even if the output voltage of the charging power supply decreases and dust removal power decreases, By increasing the charging voltage applied to the multi-layer capacitor, the output voltage of the charging power source also increases, and it is possible to prevent a reduction in dust removal power in the dust collecting container alone.

  In particular, in a fifth invention, in any one of the first to third inventions, a fifth aspect of the invention includes a usage time measuring unit that measures a time during which the vacuum cleaner is used, and depending on the measured usage time, to the electric double layer capacitor The charging voltage to be applied is varied. Thereby, a decrease in electrostatic capacity and an increase in internal resistance occur due to the aging of the electric double layer capacitor, the output voltage of the charging power source is lowered, and even when the dust removal power in the dust collection container alone is reduced, By increasing the charging voltage applied to the electric double layer capacitor, the output voltage of the charging power source also increases, and it is possible to prevent a reduction in dust removal power in the dust collecting container alone.

  In particular, the sixth invention includes a charging voltage detection means for detecting a charging voltage of the electric double layer capacitor according to the fourth or fifth invention, and the electric double layer capacitor according to detection information of the charging voltage detection means. The charging current applied to is varied. Thereby, even when the charging voltage is increased due to the aging deterioration of the electric double layer capacitor and the charging time is increased, the charging time can be shortened and kept constant by increasing the charging current.

  The seventh aspect of the invention is particularly provided with a voltage variable switch that can vary the voltage of the charging power source and the voltage of the dust removing power source of any one of the first to sixth aspects of the invention. Thereby, a user can change a voltage freely according to a use condition, and can adjust the power and dust removal sound of dust removal.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 and 2 are perspective external views of the vacuum cleaner according to the embodiment of the present invention, FIG. 3 is an exploded perspective view of the dust collecting container according to the embodiment, and FIG. 4 is a control block diagram according to the embodiment. It is shown.

  In FIG. 1, the vacuum cleaner has a suction tool 23 for sucking dust attached to the extension pipe 28, and the extension pipe 28 is selected from various operation modes (for example, suction force of strong, medium, weak, stop, etc.). It is connected to the cleaner body 1 through a hand-operated operation unit 25 and a hose 27 with a hose connection unit 26.

  The electric vacuum cleaner main body 1 has a built-in electric blower 2 for generating suction air at the rear part, and a dust collecting container 3 as dust collecting means for separating and collecting dust is detachably attached to the front part. In addition, a power cord 34 is provided on the rear side to connect to an outlet (commercial power source 35) and supply power to a circuit board (not shown) built in the vacuum cleaner body 1.

  In FIG. 2, the dust collecting container 3 is provided with a filter unit 5 as a filtering means that is detachably mounted and a dust collecting chamber 4 for storing dust. A lid 7 is attached to the bottom of the dust collecting container 3 so as to be freely opened and closed. When the lid 7 is opened, dust accumulated in the dust collecting chamber 4 is discharged to the outside.

  When the dust container 3 is attached to the main body 1 of the vacuum cleaner, the dust container air inlet 6 is connected to the main body air inlet B 32 communicating with the main body air inlet A 17 of the main body 1 of the vacuum cleaner. The partition wall 15 partitions the installation part of the electric blower 2 and the dust collecting container 3, and is provided with a lattice-shaped partition wall opening 16 that communicates with the suction part of the electric blower 2. The partition opening 16 is connected to the upper part of the filter unit 5 of the dust collecting container 3. The dust removal switch 18 is configured on the dust collecting container 3 and operates a dust removing means 29 described later when operated by a user.

The partition 15 of the vacuum cleaner body 1 has a dust removal motor 14 provided in the dust collecting container 3.
In addition, a power feeding terminal 19 for energizing the electric double layer capacitor 21 is provided, and a power receiving terminal 20 paired with the power feeding terminal 19 is provided in the dust collecting container 3. These terminals are configured to be connected when the dust collecting container 3 is mounted on the electric vacuum cleaner main body 1.

  Next, the internal configuration of the dust collecting container 3 will be described with reference to FIG. In FIG. 3, the filter unit 5 includes a frame body 8, a pleat-folded filter 9 provided on the frame body 8 with the pleats in the vertical direction, and a flip body 10 slidably provided in the horizontal direction. The filter unit 5 includes a dust removal gear 11 that is rotatably provided, and a dust removal connecting rod 12 that connects the outer periphery of the dust removal gear 11 and a part of the flip body 10.

  Further, a protrusion (not shown) is provided on the surface of the flip body 10 facing the filter 9 so as to come into contact with each mountain fold portion of the pleated filter 9. The fixed bar 13 is fixed to the frame body 8, the rotating shaft of the dust removing gear 11 is fixed to the fixed bar 13, and the operation direction of the flip body 10 is regulated so as to operate in the left and right lateral directions. It has become.

  The dust removal gear 11 side of the dust removal connecting rod 12 has a tooth shape that meshes with the dust removal gear 11. When the dust removal gear 11 rotates forward or reversely, the dust removal connecting rod 12 slides and plays. The body 10 is configured to move in the left-right direction. A dust removal motor 14 having a gear that meshes with the dust removal gear 11 is connected to the dust removal gear 11, and the power is transmitted to the dust removal gear 11 by the rotation of the dust removal motor 14.

  The flip body 10, the dust removal gear 11, the dust removal connecting rod 12, the fixed rod 13, and the dust removal motor 14 constitute a dust removal means 29.

  With the above configuration, when the dust removal motor 14 is rotated, the dust removal gear 11 is rotated, and the flip body 10 connected via the dust removal connecting rod 12 is reciprocated to the left and right, and the protrusion provided on the flip body 10 therebetween. However, the mountain fold of the filter 9 is flipped, and the vibration propagates to the entire dust collecting container 3 around the filter 9. Due to this vibration and impact, fine dust adhering to the back surface of the filter 9 (the surface on the dust collection chamber 4 side) is screened out and collected in the dust collection chamber 4, and the filtration performance of the filter 9 is restored. .

  Next, the control method of the vacuum cleaner in this Embodiment is demonstrated using FIG. FIG. 4 is a control block diagram of the vacuum cleaner. The vacuum cleaner main body 1 has driving means 44 composed of a bidirectional thyristor or the like for driving the electric blower 2, and controls the phase of the electric blower 2 to vary the suction force. The control means 41 composed of a microcomputer or the like takes in the switch operation information of the hand operation section 25 operated by the user and outputs a firing pulse for phase control to the drive means 44 based on the information. I do.

  The dust removing power source 32 is a power source for driving the dust removing motor 14 when the dust collecting container 3 is mounted on the main body 1 of the vacuum cleaner. By the operation signal from the control means 41, the power feeding terminal 19, the power receiving terminal 20, the dust removing power source. Energy is supplied to the dust removal motor 14 via the switch 18. In addition, when the dust container 3 is attached to the main body 1 of the vacuum cleaner, the dust removal switch 18 is connected to the terminals (a) and (b).

  The charging unit 24 is a power source for charging the electric double layer capacitor 21 in the dust collecting container 3 through the power supply terminal 19 and the power receiving terminal 20, and is turned on / off by an operation signal from the control unit 41. The charging power source 30 is a power source for adjusting the electric energy supplied from the electric double layer capacitor 21 to drive the dust removal motor 14, and is charged when the dust removal switch 18 is turned on (terminals (c) and (d) are connected). The power supply 30 is turned on, and the dust removal motor 14 is driven by the output voltage of the charging power supply 30.

  The motor voltage detection means 37 is provided in the dust collecting container 3, and the applied voltage to the dust removal motor 14 when the dust removal motor 14 is driven by the electric energy of the electric double layer capacitor 21 with the dust removal switch 18 turned on. Is detected. The detected voltage is recorded in the recording means 39. When the dust collecting container 3 is attached to the vacuum cleaner main body 1, the control means 41 reads the voltage value recorded from the recording means 39 through the power supply terminal 19 and the power receiving terminal 20, and the voltage value is preset. If it is lower than the threshold value, a signal is sent to the charging means 24 to increase the charging voltage to the electric double layer capacitor 21.

  The charging voltage detection means 22 counts the time from when the charging of the electric double layer capacitor 21 is started until the charging voltage of the electric double layer capacitor 21 exceeds a predetermined value. If it is equal to or greater than the set threshold value, a signal is sent to the control means 41 to increase the charging current to the electric double layer capacitor 21 output from the charging means 24.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below using FIG. First, the user pulls out the power cord 34 from the vacuum cleaner main body 1 for cleaning, and the plug attached to the tip of the power cord 34 is connected to an outlet, and the vacuum cleaner main body 1 is connected to a commercial power source. Then, the control means 41 sends an operation signal to the dust removing power source 32, and the dust removing motor 14 is driven for a certain period of time by the control voltage of the dust removing power source 32, thereby removing the filter 9 in the dust collecting container 3.

  Next, when the user operates the hand operation unit 25 and selects, for example, “medium”, the control unit 41 sends a predetermined signal to the drive unit 44 based on the information from the hand operation unit 25. The electric blower 2 is driven. The suction force by the electric blower 2 reaches the suction tool 23 through the filter 9, the dust collection chamber 4, the hose 27, and the extension pipe 28. Then, air containing dust sucked from the suction tool 23 passes through the main body inlet 17 and enters the dust collecting chamber 4 from the dust collecting container inlet 6 of the dust collecting container 3, hits the filter 9, and dust is collected there. Will be deposited. The air that has passed through the filter 9 is sucked into the electric blower 2 via the partition opening 16.

  Even when the user selects “stop” of the hand operating unit 25 and stops the driving of the electric blower 2, the dust removal operation is performed for a certain period of time by the control voltage of the dust removal power source 32 to remove the dust on the filter 9. be able to.

  Next, consider the case where the dust accumulated in the dust collection chamber 4 is discarded. First, the user removes the dust collection container 3 from the vacuum cleaner main body 1 and moves the dust collection container 3 onto a trash box or the like. Next, when the lid 7 is opened, the dust accumulated in the dust collection chamber 4 is discharged to some extent in the trash can, but the dust remains partially attached to the inner wall of the dust collection chamber 4 and the lid 7. . At this time, when the user turns on the dust removal switch 18, the dust removal motor 14 is rotated by the charging power source, and the operation of the flip body 10 vibrates the entire dust collecting container 3 around the filter 9, and the filter 9 as shown in FIG. In addition, the vibration propagates to the inner wall of the dust collection chamber 4 and the lid body 7, and the attached dust is removed. As described above, in the present embodiment, dust removal operation can be performed on the trash box when the trash is thrown away, so that not only the filter 9 but also dust attached to the inner wall of the dust collection chamber 4 and the lid 7 can be removed. .

  In the present embodiment, by changing the voltage value of the charging power source 30 and the voltage value of the dust removing power source 32, the optimum driving voltage of the dust removing motor 14 can be set according to the situation. For example, by making the voltage value of the dust removal power supply 32 lower than the voltage value of the charging power supply 30, the driving power of the dust removal motor 14 when the dust collecting container 3 is attached to the vacuum cleaner body is suppressed, and the dust removal sound is reduced. Can be reduced. In particular, dust removal by the dust removal power source 32 is performed automatically when the power is turned on or after the operation of the vacuum cleaner is stopped, and the dust removal is effective even when the frequency is high and not intended by the user. It is.

  Conversely, by lowering the voltage value of the charging power supply 30 from the voltage value of the dust removal power supply 32, when the dust collection container 3 itself is dust-removed, the user manually puts the dust collection container 3 on the trash can. Since dust is removed while being held, vibration due to dust removal is directly transmitted to the user's hand. However, by reducing the output voltage of the charging power supply 30, the vibration transmitted to the user due to dust removal is suppressed and the dust collecting means inner wall or bottom surface is suppressed. Adhering dust can be removed.

  Further, when the electric double layer capacitor 21 deteriorates over time due to long-term use of the vacuum cleaner and the internal resistance increases, a voltage drop occurs due to the internal resistance, and charging using the discharge energy of the electric double layer capacitor as input. It is conceivable that the output voltage of the power supply 30 also decreases, the drive voltage of the dust removal motor 14 decreases, and the dust removal power decreases. At this time, when the voltage detected by the motor voltage detecting means 37 becomes equal to or lower than the threshold, the output voltage of the charging power source 30 is increased by increasing the charging voltage applied to the electric double layer capacitor, and the dust collecting container 3 alone It is possible to prevent the dust removal power from being lowered.

  Here, it is conceivable that the charging time is increased by increasing the charging voltage of the electric double layer capacitor 21, but from the time when charging of the electric double layer capacitor 21 is started by the charging voltage detecting means 22, By counting the time until the charging voltage of the electric double layer capacitor 21 exceeds a predetermined value and detecting the charging time, when the charging time becomes longer than a predetermined time, the charging current is increased and the time is shortened. Thus, the charging time can be kept constant.

(Embodiment 2)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. Note that parts having the same configurations as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the figure, the usage time measuring means 36 counts the time during which the vacuum cleaner is energized to the commercial power source, and sends a signal to the control means 41 when the count exceeds a preset threshold value. The charging voltage to the electric double layer capacitor 21 output from the charging means 24 is increased.

  Further, the vacuum cleaner main body 1 is provided with a voltage variable switch 38 (see also FIG. 2) that can be freely operated by the user. By operating this switch, a signal is sent to the control means 41 and the dust removing power source 32. And the output voltage of the charging power supply 30 is also changed by changing the charging voltage from the charging means 24 to the electric double layer capacitor 21.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. It is conceivable that due to aged deterioration of the electric double layer capacitor 21, the driving power of the dust removal motor 14 may decrease due to a decrease in charging energy due to a decrease in capacitance or an increase in internal resistance. The usage time of the vacuum cleaner is counted, and when the count exceeds the preset threshold and it is determined that the vacuum cleaner has been used for a predetermined period, the charging voltage of the electric double layer capacitor 21 is increased, Since the energy charged in the double layer capacitor 21 is increased and the output voltage of the charging power supply 30 is also increased, it is possible to prevent the driving power of the dust removing motor 14 from being lowered.

  In addition, since the voltage variable switch 38 can be freely operated by the user, for example, when it is desired to increase the power of automatic dust removal by the dust removal power source 32 when the operation of the vacuum cleaner is stopped, the voltage of the dust removal power source 32 is set. The user can freely change the voltage according to the situation, such as increasing the voltage or increasing the voltage of the charging power source 30 to increase the dust removal power of the dust collecting container 3 alone. A vacuum cleaner can be provided.

  As described above, the vacuum cleaner according to the present invention can remove not only the filter surface of the dust collection container but also the dust adhered to the inner wall and bottom surface of the dust collection container, and also the noise when removing the filter surface. It can be reduced and is easy to use and can be applied to various vacuum cleaners for home use, business use, and store use.

DESCRIPTION OF SYMBOLS 3 Dust collection container 14 Dust removal motor 18 Dust removal switch 21 Electric double layer capacitor 22 Charging voltage detection means 24 Charging means 30 Charging power supply 32 Dust removal power supply 36 Usage time measurement means 37 Motor voltage detection means 38 Voltage variable switch

Claims (7)

A dust collection container that is detachably attached to the main body of the vacuum cleaner, collects dust, a dust removal means that removes dust attached to the dust collection container, a dust removal motor that drives the dust removal means, and the dust collection container An electric double layer capacitor provided therein, a charging means for charging the electric double layer capacitor with electric energy, and the electric energy of the electric double layer capacitor when the dust collecting container is removed from the vacuum cleaner body. A charging power source for driving the dust removing motor and a dust removing power source for driving the dust removing motor when the dust collecting container is mounted on a vacuum cleaner main body, wherein the voltage of the charging power source and the voltage of the dust removing power source are different. A vacuum cleaner characterized by that. 2. The vacuum cleaner according to claim 1, wherein the voltage of the dust removing power source is lower than the voltage of the charging power source. 2. The vacuum cleaner according to claim 1, wherein the voltage of the charging power source is made lower than the voltage of the dust removing power source. The motor voltage detection means which detects the voltage concerning the said dust removal motor is provided, The charging voltage applied to the said electrical double layer capacitor is varied according to the detection information, The any one of Claims 1-3 characterized by the above-mentioned. The vacuum cleaner as described in. The use time measurement means which measures the time which used the vacuum cleaner is provided, The charging voltage applied to the said electric double layer capacitor is made variable according to the measured use time, The any one of Claims 1-3 characterized by the above-mentioned. The vacuum cleaner according to item 1. 5. A charging voltage detecting means for detecting a charging voltage of the electric double layer capacitor is provided, and a charging current applied to the electric double layer capacitor is varied according to detection information of the voltage detecting means. Or the vacuum cleaner of 5. The vacuum cleaner according to any one of claims 1 to 6, further comprising a voltage variable switch capable of varying a voltage of the charging power source and a voltage of the dust removing power source.