JP2012249822A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner that can facilitate removal of dust adhered to or stuck in a filter inside a dust collection container, as well as dust adhered to an inner wall or bottom part of the dust collection container.SOLUTION: The vacuum cleaner includes: an electric blower 2; the dust collection container 3 removably attached to a vacuum cleaner body 1, and for collecting dust; a dust remover 45 arranged in the dust collection container 3, and for adding impact such as vibration to a filter (not shown) for collecting dust, thereby removing the collected dust from the filter; a fan 21 for delivering the air to the side of a filter opposite to the side for collecting dust; a DC power supply 47 for supplying power for actuating the dust remover 45 and the fan 21; and a controller 42 for controlling the operation of the dust remover 45 and the fan 21. The vacuum cleaner actuates the dust remover 45 while delivering the air to the filter through the fan 21, allowing dust stuck in the filter to be removed therefrom, thus improving the dust removal performance of the filter, and reducing degradation of suction force and maintaining strong suction force.

Description

  The present invention relates to an electric vacuum cleaner, and more particularly to an electric vacuum cleaner having a dust removing means for removing dust adhering to a filtration filter disposed on a suction side of an electric blower.

  Conventionally, as a vacuum cleaner of this type, a pleat portion of a substantially planar dust collecting means (pleated dust collecting filter) is sequentially moved by moving an arm (dust removing means) driven by a motor having a speed reduction mechanism. There is one in which vibration is given by striking, and fine dust adhering to the filter surface is shaken off to suppress a reduction in suction performance (see, for example, Patent Document 1).

Japanese Patent No. 4107171

  However, in the configuration of the conventional vacuum cleaner, dust is removed only by vibration, and dust adhering to the filter can be removed, but it is difficult to remove dust that has entered the filter by suction. Further, the dust removed from the filter surface adheres to the inner wall and bottom surface of the dust collecting chamber, and the dust separation property when the attached dust is thrown away is not considered.

  The present invention solves the above-described conventional problems, improves the dust removal performance of the filter, maintains the suction force, and has good usability that can remove dust adhering to the inner wall and bottom surface of the dust collection chamber. An object is to provide a vacuum cleaner.

  In order to solve the above-described conventional problems, an electric vacuum cleaner of the present invention includes an electric blower that generates suction air, a dust collection container that is detachably attached to a vacuum cleaner body, and collects dust. A filter that is disposed inside and traps dust, a dust removing means that removes dust trapped by applying an impact such as vibration to the filter, a blower fan that sends air to a side opposite to the dust trapping side of the filter, and A power supply device arranged in a vacuum cleaner body for supplying power to operate the dust removing means and the blower fan; and a control means for controlling the operation of the dust remover and the blower fan, the blower fan using the filter The dust removal means is operated while the air is being blown into the filter, and dust that has entered the filter can be removed, improving the dust removal performance of the filter and clogging the filter. That the suction force decreases is reduced, it maintained a strong suction force, thereby improving dust collection performance. Further, dust attached to the inner wall and bottom surface of the dust collecting chamber by air blowing is also removed, and a vacuum cleaner capable of reducing care can be provided.

  The vacuum cleaner of the present invention improves the dust removal performance of the filter, thereby reducing a reduction in suction force due to clogging of the filter, maintaining a strong suction force and having an excellent dust collection performance.

The perspective external view of the electric vacuum cleaner in Embodiment 1 of this invention (A) The exploded perspective view seen from the diagonal front of the vacuum cleaner main body of the vacuum cleaner, (b) The exploded perspective view seen from the diagonal rear of the vacuum cleaner main body Exploded perspective view of dust container of the vacuum cleaner Control block diagram of the vacuum cleaner Control block diagram of the electric vacuum cleaner in Embodiment 2 of the present invention Schematic of dust collection container when throwing away garbage of the vacuum cleaner Control block diagram of the electric vacuum cleaner in Embodiment 3 of the present invention

  According to a first aspect of the present invention, there is provided an electric blower that generates suction air, a dust collection container that is detachably attached to a vacuum cleaner body, collects dust, a filter that is disposed in the dust collection container and captures dust, A dust removing means for removing dust trapped by applying an impact such as vibration to the filter; a blower fan for sending wind to a side opposite to the dust collecting side of the filter; and a dust removing means disposed in the cleaner body, A power supply device that supplies power to operate the blower fan, a dust removing unit, and a control unit that controls the operation of the blower fan, and operates the dust removing unit while blowing air to the filter by the blower fan. Because it can remove the dust that has entered the filter, the dust removal performance of the filter is improved, the reduction of the suction force due to clogging of the filter is reduced, and the strong suction force It is maintained, thereby improving dust collection performance. Further, dust attached to the inner wall and bottom surface of the dust collecting chamber by air blowing is also removed, and a vacuum cleaner capable of reducing care can be provided.

  In particular, the second invention is characterized in that the electric energy is stored in the dust collecting container of the first invention and is charged by the power feeding device, and the dust removing means and the blower fan are operated when the dust collecting container is a single unit. A dust collecting container control means for controlling is disposed, and when the dust collecting container and the cleaner body are connected, the control means controls the charging operation of the dust removing means, the blower fan, and the power storage means, and The dust removing unit is operated while blowing air to the filter with a dust container alone, and the dust removing performance of the filter is further improved, the strong suction force is maintained, and the dust collecting performance is improved. Further, dust attached to the inner wall and the bottom surface of the dust collecting container by blowing can be removed.

  In particular, the third invention is provided with a power generation means for generating power by suction air or sunlight in the dust collecting container of the second invention, and charging the power storage means by the power generation means. It is possible to save energy because it is not necessary.

  The fourth aspect of the invention relates particularly to the dust removal means and the driving voltage of the blower fan of the second or third aspect of the invention when the dust collection container is mounted on the cleaner body and when the dust collection container is a single unit. A dust removal operation that automatically removes the filter dust when the power is turned on or when the operation is stopped, and the dust collection container is removed from the vacuum cleaner body. In each of the dust removal operations performed during the operation, the optimum drive voltage of the dust removal motor and the blower fan can be set, so that the dust removal sound can be reduced while considering the dust removal performance.

  In particular, the fifth aspect of the invention is provided with notifying means for notifying the user that the blower fan of any one of the first to fourth aspects of the invention is operating, and removing dust to the user. Can be notified.

  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)
FIG. 1 is a perspective external view of the electric vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2A is an exploded perspective view of the vacuum cleaner as viewed from an oblique front, and FIG. Fig. 3 is an exploded perspective view of the main body of the vacuum cleaner as viewed from an oblique rear, Fig. 3 is an exploded perspective view of a dust collecting container of the vacuum cleaner, and Fig. 4 is a control block diagram of the vacuum cleaner.

  In FIG. 1, the vacuum cleaner in the present embodiment has a suction tool 23 that sucks dust attached to the extension pipe 28, and the extension pipe 28 has various operation modes (for example, “strong” and “medium”). -It is connected to the vacuum cleaner main body 1 through a hand operating section 25 that can select a "weak" suction force, "stop", and the like, and a hose 27 with a hose connection section 26.

  The vacuum cleaner main body 1 has a built-in electric blower 2 that generates suction air at the rear, and a dust collection container 3 that separates and collects dust is detachably attached to the front. In addition, a power cord 34 is provided at the rear portion to connect to an outlet (a commercial power source 35 described later) and supply power to a circuit board (not shown) built in the cleaner body 1.

  In FIG. 2, the partition wall 15 partitions the installation part of the electric blower 2 and the dust collecting container 3, and is provided with a grid-like partition wall opening 16 that communicates with the suction part of the electric blower 2.

  The dust collecting container 3 includes a filter unit 5 as a filtering means that is detachably mounted, a dust collecting chamber 4 that accumulates dust, and a handle 22 for carrying the dust collecting container 3, and is detachable. A dust removal unit 24 for fixing the dust removal motor 14 and the blower fan 21 is provided. When the dust collecting container 3 is attached to the cleaner body 1, the dust removal unit 24 communicates with the main body inlet 17 of the cleaner body 1. , A dust collection container inlet 6 for guiding the suction air to the dust collection chamber 4 is provided.

  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, the dust accumulated in the dust collecting chamber 4 can be discharged to the outside.

  The partition wall 15 of the cleaner body 1 is provided with a power supply terminal 19 for energizing the dust removal motor 14 and the blower fan 21 provided in the dust removal unit 24 of the dust collecting container 3. A pair of power receiving terminals 20 is provided in the dust removing unit 24 of the dust collecting container 3. These terminals are configured to be electrically connected when the dust collecting container 3 is attached to the cleaner 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. And a dust removal gear 11 that is rotatably provided on the filter unit 5, 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, on the surface of the flip body 10 facing the filter 9, there are provided protrusions (not shown) that come into contact with the mountain folds 9 a of the pleated filter 9.

  In the present embodiment, the blower fan 21 sends air to the surface of the filter 9 opposite to the dust capturing side, that is, to the surface opposite to the dust collecting chamber 4 side.

  The fixed rod 13 is fixed to the frame body 8, and the rotating shaft (not shown) of the dust removing gear 11 is fixed to the fixed rod 13, and the operation direction of the flip body 10 is set to the left and right lateral directions. It is configured to restrict operation.

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 reverse, the dust removal connecting rod 12 slides and the flip body 10 is moved. It is configured to move in the left-right direction.

  A dust removal motor 14 having a gear 14 a meshing with the dust removal gear 11 is connected to the dust removal gear 11, and power is transmitted to the dust removal gear 11 by the rotation of the dust removal motor 14. The dust removal unit 24 fixes the dust removal motor 14, the blower fan 21, and the power receiving terminal 20, and is electrically connected therein.

  The filter unit 5 is housed in the dust collecting container 3 and the dust removing unit 24 is attached above the dust collecting container 3, so that the flip body 10, the dust removing gear 11, the dust removing connecting rod 12, the fixed rod 13, and the dust removing motor 14. Are connected, and the blower fan 21 is fixed to the upper part of the filter unit 5.

  With the above configuration, when the dust removal motor 14 and the blower fan 21 are rotated, fine dust is easily separated from the filter 9, and in this state, the dust removal gear 11 rotates and the flip body connected via the dust removal connecting rod 12. 10 reciprocates left and right, and during that time, the protrusion provided on the flip body 10 flips the mountain fold 9 a of the filter 9, and the vibration propagates to the entire dust collecting container 3 around the filter 9. The fine dust adhering to the back surface (the surface on the dust collection chamber 4 side) of the filter 9 is screened off by the air blow, vibration, and shock, and collected in the dust collection chamber 4, and the filtration performance of the filter 9 is restored. ing.

  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 energization detection means 41 provided in the cleaner main body 1 detects whether the cleaner main body 1 is connected to the commercial power source 35 and is energized, and outputs a detection signal to the control means 42. .

  The control means 42 is constituted by a microcomputer or the like, and performs control to output an ignition pulse for phase control to the drive means 44 based on operation information input from the hand operation unit 25 by the user, Based on the operation information and the detection information of the energization detection means 41, control for driving the dust removal motor 14 and the blower fan 21 is performed.

  The drive unit 44 is a drive unit configured with a bidirectional thyristor or the like for driving the electric blower 2, and controls the phase of the electric blower 2 to change the suction force.

  The dust removing means 45 includes a dust removing motor 14 that rotationally drives the dust removing gear 11, and is driven by receiving a signal from the control means 42.

  The DC power supply device 47 is a power supply device that converts AC power from the commercial power supply 35 into DC using a switching power supply or the like and supplies power to the dust removal motor 14 and the blower fan 21. It is a power source for the dust removal motor 14 and the blower fan 21. In the present embodiment, the case where there is one DC power source will be described, but it goes without saying that the power source for the dust removal motor 14 and the power source for the blower fan 21 may be separately operated.

  The DC power source produced by the DC power source 47 is connected to the power supply terminal 19 on the cleaner body 1 side and the dust container when the dust container 3 is attached to the cleaner body 1 via the dust removal drive means 48. When the power receiving terminal 20 on the third side is connected, power is supplied to the dust removal motor 14 and the blower fan 21.

  Further, the dust collecting container 3 is provided with a notification means 49 for notifying the user of the operation state of the dust removal means 45 and the blower fan 21.

  About the vacuum cleaner in this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated hereafter using FIG.

  First, the user pulls out the power cord 34 from the cleaner body 1 for cleaning, connects the plug 34a attached to the tip of the power cord 34 to an outlet, and the cleaner body 1 is connected to the commercial power source 35. Then, a detection signal is transmitted to the control means 42 by the energization detection means 41. Further, a DC power source is created from the commercial power source 35 by the DC power source device 47.

  Upon receipt of the signal, the control means 42 sends an operation signal for a predetermined time to the dust removal driving means 48, and the dust removal motor 14 and the blower fan 21 are driven for a certain time by the control voltage of the DC power source, thereby collecting the dust. The filter 9 in the dust container 3 is dedusted.

  Next, when the user operates the hand operation unit 25 and selects, for example, the “medium” mode, the control unit 42 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 and 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. And the air containing the dust sucked from the suction tool 23 enters the dust collecting chamber 4 from the dust collecting container intake port 6 of the dust collecting container 3 through the main body intake port 17, and the filter 9 has the dust collecting chamber 4 side. Dust collects and accumulates there.

  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 operation 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 DC power supply, and the dust on the filter 9 is removed. be able to.

  When the cleaning is completed, the user first removes the dust collecting container 3 from the cleaner body 1 and moves the dust collecting container 3 onto a trash box (not shown). Next, when the lid body 7 is opened, the dust accumulated in the dust collecting chamber 4 is discharged into the trash box.

  As described above, in the present embodiment, when the plug 34a of the power cord 34 is connected to an outlet and when "stop" of the hand operation unit 25 is selected, vibration or the like is sent while blowing air to the filter 9. In addition to the dust adhering to the surface of the filter 9, the dust that has entered the filter 9 can be removed. Therefore, the dust removal performance of the filter 9 is improved, a strong suction force is maintained, and the dust collection performance is improved. Further, dust attached to the inner wall and the bottom surface of the dust collecting chamber 4 by blowing can be removed.

(Embodiment 2)
FIG. 5 is a control block diagram of the electric vacuum cleaner according to Embodiment 2 of the present invention, and FIG. 6 is a schematic diagram of the dust collecting container when the electric vacuum cleaner is disposed of. In addition, about the same component as the vacuum cleaner in the said Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 5, in the vacuum cleaner in the present embodiment, in the dust removing unit 24 above the dust collecting container 3, a power storage means 50 that stores electrical energy, and a switch that is switched to be operated by the power storage means 50. The switching means 18 such as is fixed.

In the dust collection container 3, a dust collection container control means 53 for controlling the operation of the dust removal means 45 and the blower fan 21 when the dust collection container 3 is a single unit is disposed.

  The charge driving means 51 is for controlling charging of the power storage means 50 in the dust collecting container 3 through the power supply terminal 19 and the power receiving terminal 20 using a DC power supply as a power source, and is charged by an operation signal from the control means 42. ON / OFF control is performed.

  The power storage means 50 is composed of an electric double layer capacitor, a secondary battery, or the like, and serves as a power source for operating the dust removal motor 14, the blower fan 21, and the notification means 49 when only the dust collecting container 3 is used. is there.

  The constant voltage means 52 is a means for controlling the voltage of the power storage means 50 to a constant voltage, and is for operating the dust removal motor 14 and the blower fan 21 with a stable voltage.

  The switching means 18 is a switch or the like. When the switch 18 is turned off, the dust removal motor 14 or the like is operated by the DC power supply of the DC power supply 47, and when it is turned on, the dust removal motor 14 or the like is switched by the power supply of the power storage means 50. Is.

  About the vacuum cleaner in this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated below using FIG.

  First, when the user performs cleaning, when the power cord 34 of the cleaner body 1 is connected to the commercial power source 35, a detection signal is transmitted to the control means 42 by the energization detection means 41. Further, a DC power source is created from the commercial power source 35 by the DC power source device 47. The switching means 18 is normally in an OFF state, and is connected to perform a dust removal operation under the control of the dust removal drive means 48.

  Upon receipt of the signal, the control means 42 sends an operation signal for a predetermined time to the dust removal driving means 48, and the dust removal motor 14 and the blower fan 21 are driven for a certain time by the control voltage of the DC power source to collect the dust. Dust removal of the filter 9 in the container 3 is performed.

  When the dust removal operation ends after a certain time has elapsed, the control means 42 sends a signal to the charging drive means 51 and starts charging the power storage means 50. Charging is continued even when the user operates the hand operating unit 25 and cleaning is performed without charging being completed, but charging is performed when “stop” is operated on the hand operating unit 25. Is temporarily stopped and dust is removed for a certain period of time.

  If both the dust removal operation and the charging operation are performed, a large output capacity of the DC power supply device 47 is required, so that the size is not increased, and it goes without saying that both operations may be performed.

  Next, the case where the dust accumulated in the dust collection chamber 4 is discarded will be described.

  The user first removes the dust collection container 3 from the cleaner 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 switching means 18, the dust removal motor 14 and the blower fan 21 rotate with the voltage converted by the constant voltage means 52 with the power supply from the power storage means 50, and the operation of the flip body 10. As a result, the dust collection container 3 as a whole vibrates around the filter 9, and the vibration propagates to the inner wall of the dust collection chamber 4 and the lid 7 as shown in FIG. Removed.

  Further, by changing the voltage of the power storage means 50 to a constant voltage by the constant voltage means 52 (hereinafter referred to as storage voltage) and the voltage (main body supply voltage) supplied via the dust removal drive means 48, the situation can be changed. Accordingly, the optimum drive voltage for the dust removal motor 14 and the blower fan 21 can be set. For example, by making the main body supply voltage value lower than the stored voltage value, the driving power of the dust removal motor 14 when the dust collecting container 3 is attached to the cleaner body 1 can be suppressed, and the dust removal noise can be reduced. it can. In particular, it is performed automatically when the power is turned on or after the operation of the vacuum cleaner is stopped, and the frequency is high, and dust is removed even when not intended by the user. Therefore, it is effective to reduce dust removal sound.

  As described above, in the present embodiment, the dust removal performance of the filter 9 is further improved by removing the dust by applying an impact such as vibration while blowing air to the filter 9 even in the dust collecting container 3 alone, Strong suction force is maintained and dust collection performance is improved. Further, dust attached to the inner wall and bottom surface of the dust collecting container 3 by blowing can be removed.

(Embodiment 3)
FIG. 7 is a control block diagram of the electric vacuum cleaner according to Embodiment 3 of the present invention. In addition, about the same component as the vacuum cleaner in the said embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  The vacuum cleaner in the present embodiment is constituted by a solar panel or the like, and charges the power storage means 50 with the power generation means 55 fixed to the top surface of the dust collecting container 3 and the power generated by the power generation means 55. The charging means 56 is provided, and other configurations are the same as those of the electric vacuum cleaner in the above embodiment.

  About the vacuum cleaner in this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated.

  When cleaning is performed, or when cleaning is finished and the electric vacuum cleaner is left unattended, power is generated by the power generation means 55 and the power storage means 50 is charged.

  As described above, in the present embodiment, energy can be saved because the power generation means 55 can perform charging without supplying power for charging from the cleaner body 1.

  In the present embodiment, the solar power panel has been described as the power generation means 55. However, a fan (not shown) that rotates by the intake air in the intake path (not shown) of the dust collecting container 3 and the rotation of the fan. Needless to say, power generation means (not shown) for generating electric power may be used.

  As described above, the vacuum cleaner according to the present invention can remove not only the filter surface of the dust collecting chamber but also the dust attached to the inner wall and the bottom surface of the dust collecting chamber. Applicable to various vacuum cleaners for business use and store use.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 3 Dust collection container 9 Filter 21 Blower fan 42 Control means 45 Dust removal means 47 DC power supply device (power supply device)
49 Notification means 50 Power storage means 53 Dust collection container control means 55 Power generation means

Claims (5)

An electric blower that generates suction air, a dust collection container that is detachably attached to the main body of the vacuum cleaner, a filter that is disposed in the dust collection container and traps the dust, and an impact such as vibration on the filter The dust removing means for removing the captured dust by adding the air, the blower fan for sending air to the side opposite to the dust catching side of the filter, and the dust removing means and the blower fan arranged in the main body of the cleaner An electric cleaning comprising: a power supply device that supplies power; and a control unit that controls the operation of the dust removing unit and the blower fan, and the dust removing unit is operated while the blower fan blows air to the filter. Machine. In the dust collection container, there are arranged a power storage means for storing electric energy and being charged by a power supply device, and a dust collection container control means for controlling the operation of the dust removal means and the blower fan when the dust collection container is a single unit. When the dust container and the cleaner body are connected, the control means controls the operation of charging the dust removing means, the blower fan, and the power storage means, and blows air to the filter with the dust collecting container alone, 2. The vacuum cleaner according to claim 1, wherein the means is operated. The electric vacuum cleaner according to claim 2, wherein the dust collecting container is provided with a power generation means for generating electricity by suction air or sunlight, and the power storage means is charged by the power generation means. The drive voltage of the dust removing means and the blower fan is made different between when the dust collecting container is attached to the vacuum cleaner body and when the dust collecting container is a single unit. Electric vacuum cleaner. The vacuum cleaner according to any one of claims 1 to 4, further comprising notification means for notifying a user that the blower fan is operating.