JP5736976B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner having an ion generator.

  Conventional vacuum cleaners generate air intake by an electric blower, take air containing dust into a dust collector, filter the dust with a filter like a paper pack type, or air containing dust like a cyclone type It turns and separates the dust by the centrifugal force to collect the dust.

  In a vacuum cleaner, members constituting an intake passage through which intake air passes are charged by friction with air. Further, dust is charged by friction between air and dust. In particular, in a cyclonic vacuum cleaner that swirls air and dust and separates them, the air swirls along the wall surface in the dust collecting device, so that the dust collecting device is easily charged. In addition, dust charged by friction with air also swirls in the dust collector together with air, so that the dust collector is also charged when the charged dust contacts the wall surface in the dust collector.

  If dust inside the dust collector or dust collector is charged, when the vacuum cleaner user discards the dust collected in the dust collector, the dust adheres to the inner wall of the dust collector and is discarded. There is a problem that it is difficult to carry out or that dust may jump out of the dust collector and scatter around.

  In order to prevent the dust and the dust collector from being charged, a method of supplying ions to the intake air is often used. Since ions having the opposite polarity of the charged dust adhere to the dust, the charging of the dust can be suppressed, the fine dust can easily aggregate, and the size of the dust can be increased. As a result, the separation effect of air and dust due to the filter and swirl can be enhanced, which leads to sustained suction force.

  In a conventional vacuum cleaner, an ion generator is provided on the intake side, and a dust intake path different from the air intake path for dust-containing air is provided in the ion generator, so that dust can enter the ion generator. This prevents the ion generator from being contaminated by dust and reducing the generation of ions. As a result, ions can be supplied stably. However, if an intake passage other than the intake passage for air containing dust is provided, the suction force is reduced. In particular, when dust accumulates in the dust collection chamber, the pressure in the intake passage becomes high (the pressure is lower than the atmospheric pressure), and a decrease in suction performance in this state becomes a problem. In view of this, there is a valve mechanism that is provided in the intake passage provided in the ion generator so that the valve closes when the pressure in the intake passage becomes high, thereby preventing a reduction in suction force (see, for example, Patent Document 1).

JP2011-15881 (4 pages, FIG. 4)

  However, the conventional vacuum cleaner has a problem that the number of parts due to the valve mechanism is increased, and ions cannot be supplied stably because the valve closes at high pressure.

  The present invention has been made to solve the above-described problems, and prevents the ion generator from being polluted by the adhesion of dust, and also has a simple structure with respect to the intake air passage, and stably ions. It aims at providing the vacuum cleaner which can be supplied.

An electric vacuum cleaner of the present invention includes an electric blower, a dust collector disposed in an air passage that is sucked from an intake port and exhausted from an exhaust port by driving the electric blower, and an intake air upstream of the dust collector An ion generator that supplies ions to the path, and the ion generator includes a box-shaped housing, an ion generator that is disposed in the housing and generates ions, and an ion provided in the housing. The electric blower is driven by an opening that communicates the generator and the intake air passage, and a hole that is provided in the casing and through which a lead wire that supplies power to the ion generator from outside the casing is inserted. When is the intake air passage becomes a negative pressure, a possible intrusion clearance outside air to the intake air passage through the opening from the housing of the casing is formed between the hole and the lead wire, the ion generator The opening is provided so as to communicate with the curved portion of the intake air passage .

  According to the present invention, when the electric blower is driven and the inside of the intake air passage becomes negative pressure, the hole provided in the housing allows the outside air to enter the intake air passage via the inside of the housing of the ion generator. And the lead wire that supplies power to the ion generator, so that the ion generator can be prevented from fouling due to dust adhering to it, and the suction performance can be prevented from being degraded with a simple structure for the intake air passage. In addition, ions can be supplied stably.

It is a perspective view which shows the external appearance of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is the front view, side view, and sectional drawing which show the dust collector of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a center sectional view of the vacuum cleaner main part of the electric vacuum cleaner concerning Embodiment 1 of the present invention. It is a perspective view of the state where the dust collecting device was removed from the cleaner body of the electric vacuum cleaner concerning Embodiment 1 of the present invention. It is a perspective view of the state which removed the ion generator from the cleaner body in FIG. It is a perspective view of the duct arrange | positioned at the vacuum cleaner main body of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a cross-sectional view of the vacuum cleaner main body and the duct at a position where the ion generator is attached to the duct disposed in the vacuum cleaner main body of the electric vacuum cleaner according to Embodiment 1 of the present invention. It is a cross-sectional view in the position of the attachment positioning part to the cleaner main body of the duct of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view in the position of the attachment part to the cleaner body of the duct of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is the longitudinal cross-sectional view of the ion generator of the vacuum cleaner which concerns on Embodiment 1 of this invention, and the front view seen from the opening part. It is a figure explaining the structure of the ion generation part of the ion generator of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a figure explaining the flow of the ion of the ion generator of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a schematic diagram explaining the flow of the air of the duct curved part of the vacuum cleaner which concerns on Embodiment 2 of this invention.

Embodiment 1 FIG.
A cyclone type dust collection system will be described as an example of the dust collection system. The present invention is applicable not only to the cyclone type dust collection system but also to the paper pack dust collection system.
FIG. 1 is a perspective view showing an appearance of the electric vacuum cleaner according to Embodiment 1 of the present invention. FIGS. 2A, 2B, and 2C are a front view, a side view, and a cross-sectional view, respectively, showing the dust collector of the electric vacuum cleaner according to the first embodiment. 3 is a central cross-sectional view of the vacuum cleaner main body of the electric vacuum cleaner according to Embodiment 1. FIG. FIG. 4 is a perspective view of the electric vacuum cleaner according to Embodiment 1 with the dust collector removed from the main body of the vacuum cleaner. FIG. 5 is a perspective view of a state where the ion generator is removed from the cleaner body in FIG. FIG. 6 is a perspective view of a duct disposed in the vacuum cleaner main body of the electric vacuum cleaner according to the first embodiment. FIG. 7 is a cross-sectional view of the vacuum cleaner main body and the duct at a position where the ion generator is attached to the duct disposed in the vacuum cleaner main body of the electric vacuum cleaner according to the first embodiment. FIG. 8 is a transverse cross-sectional view at a position of a positioning portion for attaching the duct of the electric vacuum cleaner according to Embodiment 1 to the cleaner body. FIG. 9 is a longitudinal cross-sectional view at the position of the attachment portion of the duct of the electric vacuum cleaner according to Embodiment 1 to the cleaner body. FIGS. 10A and 10B are a longitudinal sectional view of the ion generator of the electric vacuum cleaner according to Embodiment 1 and a front view seen from the opening, respectively. FIG. 11 is a diagram illustrating a configuration of an ion generation unit of the ion generator of the electric vacuum cleaner according to the first embodiment. FIG. 12 is a diagram for explaining the flow of ions in the ion generator of the electric vacuum cleaner according to the first embodiment.

  As shown in FIG. 1, in the vacuum cleaner 100, the soft bellows hose which has the hose insertion part 6 in the front part of the vacuum cleaner main body 1, the hose insertion part 6 in one end, and the hose hand part 4 in the other end. 5 is connected, the extension pipe 3 is connected to the hose handle 4, and the suction tool 2 is connected. A plurality of operation switches (not shown) are provided in the hose handle portion 2, and a control unit (not shown) provided in the cleaner body 1 based on the operated operation switches is used as an electric blower described later. Controls driving, stopping, and output setting. An open suction port 2 a is formed on the lower surface of the suction tool 2.

    The vacuum cleaner body 1 has a dust collection chamber 20 in which a cyclone type dust collection unit 10 that is a dust collection device is accommodated, and a blower chamber 12. The cyclone type dust collecting unit 10 is connected from the hose insertion port 7 via a first main body intake port 7a which is a suction unit of the cleaner body. An electric blower 13 is provided in the blower chamber 12.

  The cyclonic dust collector 10 is detachably provided on the upper portion of the cleaner body 1. The duct 8 communicates the first main body inlet 7 a with the cyclone inlet 10 a of the cyclone type dust collecting unit 10. The cyclone intake port 10a and the cyclone exhaust port 10b of the cyclone type dust collecting unit 10 communicate with each other (see FIG. 2). The cyclone exhaust port 10 b is connected to a second main body intake port 11 provided in the cleaner body 1. The second main body intake port 11 communicates with the air blowing chamber 12. The blower chamber 12 communicates with the exhaust unit 14 attached to the opposite side of the duct 8 with respect to the cyclone type dust collecting unit 10. The exhaust part 14 is provided with an exhaust port 14a composed of a number of holes. A part of the air discharged from the blower chamber 12 cools a control board (not shown) of the control unit, cools the power cord reel, and an exhaust port (not shown) different from the exhaust port 14a. ) To the outside of the cleaner body 1.

  Thus, the air path from the suction port 2a formed in the lower surface of the suction tool 2 to the exhaust port 14a formed in the exhaust part 14 is formed, and the cyclone type dust collection which is a dust collector is formed in this air path. Part 10 is disposed. Moreover, the ion generator 9 which supplies ion to the intake air path which is an upstream air path of the cyclone type dust collecting part 10 is provided (refer FIG. 4).

  2A, 2 </ b> B, and 2 </ b> C are a front view, a side view, and a cross-sectional view, respectively, of the cyclone dust collecting unit 10. The cyclone type dust collecting unit 10 is disposed so as to be substantially parallel to the central axis A103 of the first centrifugal separation cylinder 101 and the central axis B104 of the second centrifugal separation cylinder 102, and collects the separated dust. A dust collection chamber 105 in the dust collector is provided. The handle 106 is provided on the upper surface on the front side of the cyclone type dust collecting unit 10, and is shared by the cleaner body 1 and the cyclone type dust collecting unit 9.

  FIG. 3 is a central cross-sectional view of the vacuum cleaner main body 1 with the cyclone dust collecting unit 10 set therein. The first main body inlet 7 a and the first duct inlet 8 a of the first member 81 that is a connecting portion of the duct 8 described later are sealed by the packing 21.

  FIG. 6 shows the appearance of the duct 8. The duct 8 is composed of four parts, a first member 81, a second member 82, a third member 83, and a fourth member 84, and each is connected via a packing 8f. The first member 81 has a first duct intake port 8 a connected to the first main body intake port 7 a via the packing 21. The second member 32 is substantially L-shaped and has a curved portion, and a second duct intake port 8c connected to an opening 9c of an ion generator 9 described later is formed. The 3rd member 83 has the positioning part 8e of attachment with the vacuum cleaner main body 1 on the lower surface (refer FIG. 8). The fourth member 84 has a duct exhaust port 8b connected to the cyclone intake port 10a of the cyclone type dust collecting unit 10. Moreover, it has the attaching part 8d and is fixed to the cleaner body 1 with the screw 23 (see FIG. 9).

  10A and 10B are a longitudinal sectional view of the ion generator 9 and a front view as seen from the side of the opening 9c connected to the second duct inlet 8c. The ion generator 9 includes a box-shaped casing 9a, an ion generation section 9b that generates ions contained therein, and an opening 9c that is provided in the casing 9a and communicates the ion generation section 9b and the intake air passage. And holes 9f and 9g through which the two lead wires 9d and 9e that are provided in the housing 9a and supply power to the ion generating portion 9b from the outside of the housing 9a are inserted. The two lead wires 9d and 9e are connected to a DC high voltage generator (not shown), and a negative voltage and a zero voltage of about 5 kV are output, respectively. This DC high voltage generator is controlled by the control unit to start up and adjust the voltage value.

  Clearances 9h and 9i are formed between the lead wires 9d and 9e and the holes 9f and 9g, respectively. A packing 9j is provided on the front side of the opening 9c (the side facing the second duct intake port 8c). Moreover, the attachment part 9k for attaching the housing | casing 9a to the cleaner body 1 is provided in the lower surface of the housing | casing 9a. A screw 24 is inserted into the hole of the attachment portion 9k and fixed to the cleaner body 1 (see FIG. 12).

  The ion generator 9b includes a needle electrode 9l having a negative potential and a counter electrode 9m having a zero potential opposite to the needle electrode 9l. A negative voltage of about 5 kV is applied to the needle electrode 91. The lead wires 9d and 9e are connected to the needle electrode 9l and the counter electrode 9m, respectively, and the periphery of the metal wire at the center is covered with vinyl. The diameters of the lead wires 9d and 9e are, for example, 2.1 mm and 1.8 mm, respectively, and the diameter of the hole is about 2.4 mm. In this way, a gap is formed between the lead wire and the hole, and as will be described later, when the electric blower 13 is driven and the intake air passage becomes negative pressure, the outside air of the casing 9a is passed through the gap to the casing. It penetrates into 9a.

  As shown in FIG. 10B, with respect to the holes 9f and 9g, the ion generating part 9b is unevenly distributed on the right side, and the opening 9c is unevenly distributed on the left side. With this arrangement, even if dust enters along with the outside air from the holes 9f and 9g, the outside air flows toward the opening 9c, so it does not go to the ion generating portion 9b, and dust adheres to the ion generating portion 9b. And can be prevented from fouling.

  FIGS. 11A and 11B are a plan view seen from the electrodes 9l and 9m side of the ion generating part 9b and a cross-sectional view seen from the opening 9c side, respectively. A DC negative voltage of about 5 kV is applied to the needle-like electrode 9i through the lead wire 9d. The counter electrode 9m is a substantially U-shaped electrode disposed so as to surround the needle-like electrode 9l, and is maintained at 0 potential, that is, ground potential by the lead wire 9e. These electrodes are disposed on a substantially U-shaped substrate 9n cut out at the position of the needle-like electrode 9i, and are insulated and fixed by an insulating member 9o. The electric field concentrates near the tip of the needle-like electrode 9i to generate corona discharge, and negative ions are generated.

Next, the operation will be described.
When the start button of the operation switch of the hose handle 4 is pressed, the control unit controls the electric blower 13 to be driven. By driving the electric blower 13, negative pressure is generated in the air path upstream of the electric blower 13, and dust on the floor and the like is sucked together with air from the suction port 2 a of the lower surface of the suction tool 2, and the extension pipe 3 and the hose are nearby. It is guided from the hose insertion port 7 to the cleaner body 1 via the hose insertion part 6 from the part 4.

  Air containing dust (dust air) introduced into the cleaner body 1 is a duct 8 including a first member 81, a second member 82, a third member 83, and a fourth member 84 from the first body intake port 7 a. And is discharged from a duct exhaust port 8 b provided in the fourth member 84. The dust air discharged from the duct exhaust port 8b is guided into the cyclone type dust collecting unit 10 from the cyclone intake port 10a. The dust air introduced into the cyclone type dust collecting unit 10 becomes a swirl flow in the first centrifuge cylinder 101 and the second centrifuge cylinder 102 that are two centrifuge cylinders, and the centrifugal force causes the dust to flow. It is separated and accumulated in the dust collection chamber 105 in the dust collector. The air from which the dust has been removed is discharged from the cyclone exhaust port 10b.

  The air exhausted from the cyclone exhaust port 10 b is guided again into the cleaner body 1 from the second body intake port 11 provided in the cleaner body 1. Thereafter, the air is guided to the blower chamber 12 via the electric blower 13. The air guided to the blower chamber 12 is discharged to the exhaust unit 14 and is exhausted to the outside of the cleaner body 1 through an exhaust port 14 a configured by a large number of holes provided in the exhaust unit 14. A part of the air discharged from the blower chamber 12 cools the control board (not shown), cools the power cord reel, and cleans it from an exhaust port (not shown) different from the exhaust port 14a. The air is exhausted outside the machine body 1.

  Simultaneously with the driving of the electric blower 13, the control unit controls the DC high voltage generator to generate a high voltage. The DC high voltage generator outputs a negative voltage of about 5 kV and a zero voltage to the connected lead wire 9d and lead wire 9e, respectively. The DC voltage output to the lead wires 9d and 9e is applied to the needle electrode 9l and the counter electrode 9m in the ion generator 9b to be connected to each other. When a DC high voltage is applied between the needle electrode 9l and the counter electrode 9m, corona discharge occurs near the tip of the needle electrode 9l where the electric field concentrates, and negative ions are generated.

  By driving the electric blower 13, a negative pressure is generated in the intake air passage on the upstream side of the cyclone type dust collector 10 that is a dust collector. Negative pressure is also generated in the vicinity of the second duct inlet 8c provided in the second member 82 forming a part of the intake air passage. Then, the inside of the housing 9a of the ion generator 9 connected to the second duct intake port 8c via the packing 9j also becomes negative pressure. Then, the outside air of the housing 9a enters the housing 9a from the gaps 9h and 9i between the holes 9f and 9g provided in the housing 9a and the lead wires 9d and 9e. Negative ions are attracted to the invading outside air, and outside air containing negative ions is supplied into the intake air passage through the opening 9c of the housing 9a.

  Thus, since negative ions are attracted to the outside air of the housing 9a and supplied to the intake air passage, dust in the intake air passage does not enter the ion generator 9, and the ion generator 9b is caused by dust. It can suppress being soiled. Moreover, since the ion generating part 9b is unevenly distributed on the right side and the opening part 9c is unevenly distributed on the left side with respect to the hole parts 9f and 9g, even if dust enters with the outside air from the hole parts 9f and 9g, the outside air is opened. Since it flows toward the part 9c, it can be prevented from adhering to the electrode 9l of the ion generating part 9b and being contaminated without going to the ion generating part 9b.

Negative ions supplied from the ion generator 9 are supplied to the cyclone dust collecting unit 10 via the duct 9. Then, the inner wall of the cyclone dust collecting unit 10 that is positively charged is neutralized to suppress the adhesion of dust. In addition, it removes positively charged dust.
When the dust is neutralized, there is no repulsive force acting between the dusts, and fine dust aggregates and increases.

  When the electric blower 13 is driven for cleaning, air is sucked from the gaps 9h and 9i of the housing 9a of the ion generator 9 with respect to the air passage that is sucked from the suction port 2a for originally sucking dust on the floor surface. Therefore, the work rate for sucking dust decreases. In the first embodiment, the areas of the gaps 9h and 9i in the casing 9a of the ion generator 9 are approximately the same as a circular 2 mm hole. It has been experimentally confirmed that the reduction in the work rate due to the hole area is about 10 W. Therefore, even if an intake gap is provided in the housing 9a of the ion generator 9, the reduction in suction performance can be reduced.

  Thus, according to the vacuum cleaner in Embodiment 1, when the electric blower is driven and the intake air passage becomes negative pressure, the outside air can enter the intake air passage through the inside of the housing of the ion generator. Since the gap is formed between the hole provided in the housing and the lead wire that supplies power to the ion generator, it prevents contamination of the ion generator due to dust adhesion and makes it easy for the intake air passage With a simple structure, it is possible to suppress a decrease in suction performance and supply ions stably.

  Further, since ions are supplied to the intake air passage on the upstream side of the dust collector, the inner wall of the charged dust collector can be neutralized.

  In addition, since ions are supplied into the duct that connects the suction part of the cleaner body and the inlet part of the dust collector, the distance from the second duct inlet to which the ions are supplied to the dust collector Therefore, the amount of ions supplied to the dust collector can be reduced by reducing the number of ions used to neutralize the inner wall of the duct from the second duct inlet to the dust collector.

  In addition, by arranging the ion generator so that it is unevenly distributed on the right side and the opening of the case is unevenly distributed on the left side with respect to the hole of the housing of the ion generator, even if dust enters with the outside air from the hole Since the outside air flows toward the opening, it is not directed to the ion generation unit, and it is possible to suppress dust from adhering to the ion generation unit and being contaminated.

  In the vacuum cleaner of the first embodiment, the dust collecting device is a cyclone type dust collecting unit, but may be a paper pack dust collecting type dust collecting unit. The dust on the inner wall of the paper pack and the paper pack can be removed, making it easy to dispose of dust. Further, since the dust is neutralized, there is no repulsive force acting between the dusts, and the fine dusts aggregate and increase, so that the collecting power by the filter can be increased.

  Moreover, in the vacuum cleaner of Embodiment 1, the 2nd duct inlet provided in the duct which connects the suction | inhalation part of a cleaner main body, and the inlet part of a dust collector as an intake air path to which ion is supplied, However, you may provide in a hose hand part and a suction tool. Since the wall surface and dust on the downstream side of the position where the ions are supplied are neutralized, it is possible to suppress the dust from adhering to the wall surface.

Embodiment 2. FIG.
In the electric vacuum cleaner of the first embodiment, the second duct intake port is provided in the vicinity of the straight pipe portion of the second member, but is provided in the vicinity of the curved portion 87.
FIG. 13 is a schematic diagram illustrating the flow of air in the duct bending portion of the electric vacuum cleaner according to Embodiment 2 of the present invention.
FIG. 13A is a cross-sectional view of the duct 85, and two straight pipe portions 86 are connected via a curved portion 87. In the figure, C indicates the air flow in the duct 85.
FIG.13 (b) is the II sectional view taken on the line of Fig.13 (a). D in the figure indicates reflux in the same cross section.

  A centrifugal force acts on the curved portion 87 against air that is a fluid flowing through the straight pipe portion 86. Since the centrifugal force acting on the air at the center of the pipe with a high flow velocity is larger than the centrifugal force acting on the air at the low flow velocity near the tube wall, the air at the center of the tube is pushed toward the outer circumference B, which is outside the bend. As a result, the air near the tube wall wraps around the inner circumference A, which is the inside of the bend, along the wall. Further, it is known that the pressure distribution on the wall surface in the II cross section is high on the outer peripheral portion B side and low on the inner peripheral portion A side. As a result, as shown in FIG.

  Since the reflux D in the vicinity of the inner peripheral portion A flows from the wall surface toward the center of the tube, if the second duct inlet 8c communicating with the ion generator 9 is provided in the vicinity of the inner peripheral portion A, the reflux D is generated in the ion generator 9. Ions are efficiently supplied into the duct 87 by the reflux D.

  The second duct intake port 8 c may be provided on the outer periphery of the curved portion 87 without being limited to the vicinity of the inner peripheral portion A. Since the flow of the recirculation D is added to the air flow C, the flow velocity in the vicinity of the wall surface is increased, and the pressure is reduced from Bernoulli's theorem, so that the ions generated by the ion generator 9 are efficiently supplied into the duct 85.

  Thus, according to the vacuum cleaner in Embodiment 2, since ions are supplied from the curved portion of the intake air passage, ions generated by the ion generator are efficiently supplied into the intake air passage. The

1 Vacuum cleaner body,
2 suction tools,
2a Suction port,
3 Extension pipe,
4 Hose hand,
5 bellows hose,
6 Hose insertion part,
7 Hose outlet,
7a 1st main body inlet (suction part of a cleaner body),
8 Duct,
81 first member,
82 second member,
83 third member,
84 fourth member,
8a first duct inlet,
8b Duct exhaust port,
8c second duct inlet,
8d mounting part,
8e positioning part,
8f packing,
85 ducts,
86 Straight pipe section,
87 curved part,
9 Ion generator,
9a housing,
9b Ion generator,
9c opening,
9d lead wire,
9e lead wire,
9f hole,
9g hole,
9h clearance,
9i gap,
9j packing,
9k mounting part,
9l needle electrode,
9m counter electrode,
9n substrate,
9o Insulating material,
10 Cyclone dust collector (dust collector),
10a Cyclone inlet,
10b Cyclone exhaust,
101 first centrifuge tube,
102 second centrifuge tube,
103 central axis A,
104 central axis B,
105 Dust collection chamber in the dust collector,
106 handle,
11 Second body inlet,
12 Blower chamber,
13 Electric blower,
14 exhaust part,
14a exhaust port,
20 Dust collection chamber,
21 Packing,
22 Upper case,
23 screws,
24 screws,
100 vacuum cleaner,
A inner circumference,
B outer periphery,
C air flow,
D Reflux.

Claims (3)

An electric blower,
A dust collector disposed in an air passage that draws air from the suction port and exhausts air from the exhaust port by driving the electric blower;
An ion generator for supplying ions to an intake air passage upstream of the dust collector,
The ion generator includes a box-shaped housing, an ion generator that is contained in the housing and generates ions, and an opening that is provided in the housing and communicates the ion generator and the intake air passage. And a hole portion through which a lead wire that is provided in the housing and supplies power to the ion generation unit from the outside of the housing is inserted,
When the electric blower is driven and a negative pressure is generated in the intake air passage, the outside air of the housing enters the intake air passage from the inside of the housing via the opening and the hole and the lead. Formed between the lines ,
The vacuum cleaner , wherein the ion generator is provided such that the opening communicates with a curved portion of the intake air passage . The dust collector is disposed in a vacuum cleaner body;
A duct communicating the suction part of the cleaner body and the inlet part of the dust collector;
The vacuum cleaner according to claim 1, wherein ions are supplied into the duct. The vacuum cleaner according to claim 1 or 2, wherein the ion generator is provided such that the opening communicates with an inner peripheral side of the bending portion.

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