JP2012235866A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner that is easily cleaned, and from which collected dust is easily disposed of.SOLUTION: The vacuum cleaner includes: a dust box 6 having a stainless mesh filter 12 detachably attached to a vacuum cleaner body 1 on the upstream side of an electric fan 5, and having a plurality of small through-holes (not shown), and separating sucked dust from the air by centrifugal force and storing the separated dust; an ionized air generator 31; and a charger (not shown) disposed in the dust box 6, and charging a double-layer electric condenser 25 that stores electric energy. The ionized air generator 31 is actuated by the electric energy stored in the double-layer electric condenser 25 to inject ionized air into the dust box 6. The injection of the ionized air when disposing the dust neutralizes static electricity of the stainless mesh filter 12 and the sucked dust to thereby reduce the electrical adsorption force of the dust, and also the blowing off of the dust whose adsorption force has been reduced by the spraying of the ionized air allows for efficient removal of the dust.

Description

  The present invention relates to a filtration filter that separates dust from intake air, and more particularly to a vacuum cleaner having a cyclone dust collecting unit that swirls intake air to separate and store dust by centrifugal force.

  Conventionally, an electric vacuum cleaner having this type of cyclone dust collection unit is configured to remove dust that has been sucked and separated by the cyclone dust collection unit under the influence of the swirling airflow in the cyclone dust collection unit. The structure of depositing was common (see, for example, Patent Documents 1 and 2).

JP 2000-342492 A Japanese Patent Laid-Open No. 9-253011

  However, in the configuration of the conventional vacuum cleaner described in Patent Documents 1 and 2, air including dust sucked from the floor surface to be cleaned is, for example, an extension pipe connected to a floor suction tool, and an extension pipe connected thereto. Although it is conveyed to the cyclone dust collecting part through the connecting hose, the air flow and dust are charged with static electricity by coming into contact with the extension pipe and the hose. The amount of static electricity varies depending on the humidity, the type of dust, the constituent materials of the extension pipe and the hose, etc., but the static electricity is more or less accumulated in the cyclone dust collecting section. Furthermore, static electricity is also generated when air containing dust in the cyclonic swirling flow rubs against the components in the cyclone dust collecting portion. As a result, static electricity is structurally accumulated in the cyclone dust collecting portion.

  For this reason, the dust sucked into the cyclone dust collecting part adheres to the inner wall of the cyclone dust collecting part due to static electricity, and when the user discards the dust collected in the cyclone dust collecting part, There was a problem that dust attached to the inner wall surface had to be removed by wiping with a tissue or the like, which was very troublesome and troublesome.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide an electric vacuum cleaner that can reduce the adhesion of dust to the inner wall of a cyclone dust collecting portion due to static electricity and eliminate the troublesomeness of care.

  In order to solve the above-described conventional problems, an electric vacuum cleaner of the present invention is arranged on the upstream side of the electric blower that generates a suction airflow and the electric blower, and is detachably attached to the main body of the vacuum cleaner. A filtration unit having a plurality of through-holes, a dust storage unit that separates and stores the sucked dust by centrifugal force, an ionized air generation unit, a storage unit that is provided in the dust storage unit and stores electrical energy; Charging means for charging electric energy in the power storage means, and operating the ionized air generating means using the electric energy stored in the power storage means, so that the ion storage air alone in the dust storage section It can be jetted, and by discharging ionized air at the time of throwing away the dust, it neutralizes the static electricity of the filtration filter of the dust storage part and the sucked dust, Reduces the adsorption force of the electric dust in the retention zone, and also blows away the dust that has decreased the adsorption force by blowing ionized air. An excellent vacuum cleaner can be provided.

  The electric vacuum cleaner of the present invention can provide an electric vacuum cleaner that can improve dust separation and can be easily maintained by reducing or preventing electrical dust from adhering to the dust reservoir when throwing away garbage.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Cross-sectional view of the vacuum cleaner body of the vacuum cleaner Side sectional view when dust is discharged from the dust box of the vacuum cleaner Circuit diagram of the vacuum cleaner

  The first invention includes an electric blower that generates a suction airflow, a filtration filter that is disposed on the upstream side of the electric blower, is detachably attached to the main body of the vacuum cleaner, and has a plurality of minute through holes. A dust storage unit that separates and stores the generated dust by centrifugal force, an ionized air generation unit, a storage unit that is provided in the dust storage unit and stores electrical energy, and a charging unit that charges the storage unit with electrical energy. The ionizing air generating means is operated using the electrical energy stored in the power storage means so that the ion storage air can be injected into the dust storage section alone. This neutralizes the static electricity of the filtration filter of the dust storage part and the sucked dust and reduces the electric dust adsorption force in the dust storage part. Further will be blown off the dust reduction in the suction force by blowing ionized air, dust adhering electrostatically it can efficiently remove, can provide a vacuum cleaner which is excellent in maintainability.

  In particular, the second invention is provided with a disposal operation means for discarding the dust in the dust storage section of the first invention, and the operation of ejecting ionized air into the dust storage section is interlocked with the operation of the disposal operation means. Therefore, since the user can perform the disposal operation and the ionization air injection operation at the same time in one operation, a vacuum cleaner with good usability can be provided.

  In the third invention, in particular, the filtration filter of the first or second invention is formed of a metal material, and the filtration filter is a component that separates the dust sucked together with the suction air. Easy part. By forming the filtration filter with a metal material, the capacitance of the filtration filter is increased, and the static electricity in the dust storage unit collects in the filtration filter, and the dust adheres more intensively. Thereby, the static elimination object concentrates on one place of the filtration filter, and dust adhering to static electricity can be efficiently removed.

  In the fourth invention, in particular, the power storage means of any one of the first to third inventions is constituted by an electric double layer capacitor, and since rapid charging with a large current is possible, it is as short as a vacuum cleaner. Even a device that is energized only for a time can be charged in an earlier time. Further, since the charge / discharge circuit can be simplified as compared with the secondary battery, the cost of the product can be reduced.

  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 is an overall perspective view of the electric vacuum cleaner according to the first embodiment of the present invention, FIG. 2 is a sectional view of the main body of the electric vacuum cleaner, and FIG. 3 is a dust box of the electric vacuum cleaner. FIG. 4 is a side sectional view when dust is discharged, and FIG. 4 is a circuit diagram of the electric vacuum cleaner.

In FIGS. 1-3, the inlet 4 which connects the hose 2 is arrange | positioned at the front part of the cleaner body 1, and the electric blower 5 for attracting | sucking dust is arrange | positioned at the rear part. A dust box 6, which is a cyclone dust collecting part and serving as a dust storing part for storing dust, is detachably disposed on the cleaner body 1 between the air inlet 4 and the electric blower 5. The suction air generated by the electric blower 5 can suck dust on the floor surface through the hose 2, the extension pipe 40, and the suction tool 41.

  The dust sucked from the suction tool 41 by the electric blower 5 is accommodated in the dust box 6. The housed dust can be discharged by removing the dust box 6 from the cleaner body 1 and opening the bottom lid 7 provided on the bottom of the dust box 6 as shown in FIG.

  The vacuum cleaner main body 1 is provided with a power supply terminal 23 for energizing the dust box 6, and a power reception terminal 24 paired with the power supply terminal 23 is provided in the dust box 6. These terminals are configured to be connected when the dust box 6 is mounted on the cleaner body 1.

  Next, the structure of the dust box 6 which is a cyclone dust collection part is demonstrated easily.

  The dust box 6 is disposed in front of the dust box 6 so that the air flow A including dust flows in the tangential direction in the dust box 6 to generate the swirl flow B, and the swirl flow B generates dust from the air flow including dust. Is provided with a substantially cylindrical separation chamber 10 and a dust collection chamber 11 for collecting the separated dust. The cylindrical side surface (circumferential surface) of the separation chamber 10 has a through hole of about 0.2 microns. It is formed of a stainless mesh filter 12 serving as a filtration filter provided with a large number (not shown).

  Further, the outer periphery is covered with a pleated filter 13 serving as a dust collector. The pleated filter 13 filters fine dust that has passed through the stainless steel mesh filter 12, and dust (fine dust) is sucked into the electric blower 5. Is preventing.

  A space between the stainless mesh filter 12 and the pleat filter 13 is a fine dust separation chamber 14. A fine dust chamber 15 for collecting fine dust is formed below the pleated filter 13, and the fine dust chamber 15 and the dust collection chamber 11 below the separation chamber 10 are joined together. The bottom lid 7 is a lid that opens and closes the fine dust chamber 15 and the dust collection chamber 11, is locked by a hook 16, and is opened and closed by a hinge 19. A tight packing 17 is attached to the lower ends of the fine dust chamber 15 and the dust collection chamber 11 with which the bottom lid 7 abuts.

  The intake port 4 is provided so as to penetrate the pleat filter 13 and the separation chamber 10, and an air path (gap) is provided between the pleat filter 13 and the separation chamber 10 around the intake port 4. .

  The frame body 20 covers the pleat filter 13, has an opening 22 communicating with the electric blower 5 at the rear, and is joined to the top plate 21 and the fine dust chamber 15 to ensure the rigidity of the dust box 6. ing.

  On the upper part of the dust box 6, an ionization air generation means 31 and a charge removal switch 18 serving as a disposal operation means are mounted, and the user operates the ionization air generation means 31 by operating the charge removal switch 18, A structure in which an air flow C containing ionized air is injected into the dust box 6, the hook 16 is released, the bottom cover 7 is opened, and the dust accumulated in the fine dust chamber 15 and the dust collecting chamber 11 is discharged to the outside. It has become.

Next, the control method of the vacuum cleaner in this Embodiment is demonstrated using FIG. First, the inside of the dust box 6 will be described. The ionized air generating means 31 includes a high-frequency oscillation circuit 27, a step-up transformer 28, voltage doubler rectifier circuits 32 a and 32 b, a positive electrode needle 33, a negative electrode needle 34, and a DC fan motor 29.

  The electric double layer capacitor 25 serving as a power storage means is connected to the power receiving terminal 24 and stores electric energy supplied from the power receiving terminal 24. The static elimination switch 18 is connected between the electric double layer capacitor 25 and the ionized air generating means 31. When the static elimination switch 18 is turned on, the electric double layer capacitor 25, the high-frequency oscillation circuit 27, and the DC fan motor 29 are connected. Are conducted, and the ionized air generating means 31 operates.

  The charging means 26 in the cleaner body 1 is a DC power source obtained by switching or the like from a commercial power source, and is a power source for charging the electric double layer capacitor 25 via the power feeding terminal 23 and the power receiving terminal 24.

  The charging control means 35 is composed of a semiconductor switch such as a transistor, and turns on / off the output of the charging means 26.

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

  When the electric vacuum cleaner is energized to the commercial power source, the charging control means 35 first operates the charging means 26 to charge the electric double layer capacitor 25. With this charging control, the electric double layer capacitor 25 maintains a constant voltage when the commercial power source is energized, and the voltage gradually decreases due to natural discharge even when disconnected from the commercial power source. Will be maintained.

  Subsequently, when the user starts the operation of the electric vacuum cleaner, the suction air of the electric blower 5 acts on the suction tool 41 and sucks dust on the floor surface. The suction air containing dust enters the dust box 6 in contact with the extension tube 40 and the inner wall surface of the hose 2 and enters the tangential direction of the separation chamber 10 from the intake port 4, and a minute through hole of the separation chamber 10 is opened. The stainless mesh filter 12 swirls on the inner peripheral surface (the stainless mesh filter 12 captures coarse dust such as cotton dust, and a part of the air in the separation chamber 10 is discharged outside the separation chamber 10, A part becomes a swirl flow B in the separation chamber 10).

  In the separation chamber 10, the air and the dust are centrifuged by the swirling flow of the suction air including the dust, and the dust is collected in the dust collection chamber 11. As shown in FIG. 2, the stainless mesh filter 12 has a smaller opening area at the upper part of the separation chamber 10 and a larger opening area as it goes downward. (The airflow discharged to the outside of the separation chamber 10 increases).

  With this configuration, the dust that has fallen into the dust collecting chamber 11 hardly accumulates and accumulates in the dust collecting chamber 11. The sucked cotton dust or the like turns into a lump while rotating, and rotates to clean the surface of the stainless steel mesh filter 12.

  Since the swirl flow B is generated inside the separation chamber 10, the airflow discharged into the fine dust separation chamber 14 also flows out along the swirl flow B and is discharged in the circumferential direction (circular tangential direction) of the separation chamber 10. Therefore, the air that has entered the fine dust separation chamber 14 also swirls along the pleated filter 13, but from a small through-hole provided in the stainless mesh filter 12, the space is large (fine dust separation chamber 14). Since it is discharged, the flow velocity decreases and fine dust easily falls, and the separation action of airflow and fine dust by the swirling flow is promoted. The separated fine dust falls in the fine dust chamber 15 and remains.

  The clean air from which fine dust has been separated is discharged from the opening 22 provided in the frame body 20, sucked by the electric blower 5, and then discharged outside the cleaner body 1.

  As described above, when air containing dust flows while sliding on the wall surface in the air flow path, static electricity is generated. This static electricity is generated in all the inner walls of the intake flow path from the suction tool 41 to the dust box 6, and particularly, dust collected by the electrostatic charge is collected more in the dust box 6 where the electrostatically charged dust is collected. Will adhere more or less. In particular, the stainless steel mesh filter 12 made of metal has a large electrostatic capacity, so that static electricity is easily collected.

  Next, the operation of the ionized air generating means 31 will be described.

  The high frequency oscillation circuit 27 converts the DC voltage stored in the electric double layer capacitor 25 into a high frequency AC voltage, and the step-up transformer 28 boosts the voltage. The high frequency voltage generated on the secondary side of the step-up transformer 28 is further boosted by the voltage doubler rectifier circuits 32a and 32b, and is applied to the positive electrode needle 33 and the negative electrode needle 34 to generate positive and negative ions. Injected as ionized air by the air flow of the DC fan motor 29.

  The principle of static electricity neutralization or static elimination by this ionized air will be briefly described.

  It is general that an object that is electrically biased to one polarity (+ or-) (dust or dust box 6 component) can be electrically neutralized by supplementing the charge of opposite polarity. Known. Ionized air (air ions) is generated when molecules such as nitrogen, oxygen, and water contained in the air are electrically ionized apart.

  Air ions have both negative (−) and positive (+) polarities, and are combined with charges of opposite polarities to create a stable state. By sending ionized air (air ions) to an object (in this embodiment, dust box 6, stainless steel mesh filter 12, and sucked dust) that is electrically biased to one polarity (+ or-). These are combined with charges of opposite polarities, and are in an electrically stable state, that is, neutralize or reduce or eliminate static electricity.

  Here, consider the case where the dust accumulated in the dust box 6 is discarded.

  First, the user removes the dust box 6 from the cleaner body 1 and moves the dust box 6 onto the trash box or the like. Next, when the static elimination switch 18 is operated and the bottom lid 7 is opened, the dust accumulated in the fine dust chamber 15 and the dust collecting chamber 11 is discharged to some extent in the trash due to its own weight, but due to electrostatic force The adhering dust remains partly adhered to the inner wall of the dust box 6 and the bottom lid 7.

  At this time, the ionized air generating means 31 injects ionized air into the dust box 6 by the electric energy stored in the electric double layer capacitor 25. This neutralizes the static electricity of the dust to reduce the electrical adsorption force, and further blows away the dust having a reduced adsorption force by blowing ionized air, thereby removing the adhering dust.

  As described above, in this embodiment, when dust is thrown away, the ionized air is sprayed on the trash can etc., so that dust attached by static electricity can be efficiently removed, maintenance becomes easy, and the user can Convenience can be improved.

In addition, by linking the injection operation of the ionized air into the dust box 6 with the disposal operation for discarding the dust in the dust box 6, the user can perform the disposal operation and the ionization air injection operation simultaneously in one operation. A vacuum cleaner with good usability can be provided.

  Furthermore, the filtration filter is a component that separates dust sucked together with the suction air, so that dust easily adheres due to static electricity. However, by using the stainless steel mesh filter 12 made of stainless steel as the filtration filter, As the capacity increases, the static electricity in the dust box 6 collects in the stainless mesh filter 12, and the dust adheres more intensively.

  Thereby, the static elimination object concentrates in one place of the stainless mesh filter 12, and the dust adhered by static electricity can be efficiently removed.

  As described above, the vacuum cleaner according to the present invention is a technique useful for improving the maintainability of a vacuum cleaner having a cyclone dust collecting unit that rotates and sucks air and separates and accumulates dust by centrifugal force. It can be applied to various vacuum cleaners regardless of whether it is for business use or business use.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Hose 4 Air inlet 5 Electric blower 6 Dust box (dust storage part, cyclone dust collection part)
7 Bottom cover 10 Separation chamber 11 Dust collection chamber 12 Stainless steel mesh filter (filtration filter)
13 Pleated filter (dust collector)
14 Fine Dust Separation Chamber 15 Fine Dust Chamber 16 Hook 17 Packing for Tight 18 Static Removal Switch (Disposal Operation Means)
DESCRIPTION OF SYMBOLS 19 Hinge 20 Frame 21 Top plate 22 Opening 23 Feeding terminal 24 Power receiving terminal 25 Electric double layer capacitor (electric storage means)
26 Charging means 27 High-frequency oscillation circuit 28 Step-up transformer 29 DC fan motor 31 Ionized air generating means 32a, 32b Voltage doubler rectifier circuit 33 Electrode needle (positive polarity)
34 Electrode needle (negative polarity)
35 Charging control means 40 Extension pipe 41 Suction tool

Claims (4)

An electric blower that generates a suction airflow, and a filter disposed on the upstream side of the electric blower, detachably attached to the main body of the vacuum cleaner, and having a plurality of minute through holes, and centrifugal force for sucked dust A dust storage unit that is separated and stored in the storage unit, an ionized air generation unit, a storage unit that is provided in the dust storage unit and stores electrical energy, and a charging unit that charges the storage unit with electrical energy. A vacuum cleaner characterized in that the ionized air generating means is operated using the stored electrical energy so that ionized air can be injected into the dust storing unit by the dust storing unit alone. The electric cleaning according to claim 1, further comprising a disposal operation unit that discards the dust in the dust storage unit, wherein an operation of ejecting ionized air into the dust storage unit is linked to an operation of the disposal operation unit. Machine. The vacuum cleaner according to claim 1 or 2, wherein the filter is made of a metal material. The electric vacuum cleaner according to any one of claims 1 to 3, wherein the power storage means is constituted by an electric double layer capacitor.