JP2012249988A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner that causes no degradation in the diffusion capability of charged fine water particles even with a reduced amount of suction air.SOLUTION: The vacuum cleaner includes: an electric fan chamber 5 for housing an electric fan 6; an exhaust port 53 for discharging the exhaust air of the electric fan 6; an electrostatic atomization device housing chamber 40 for housing an electrostatic atomization device 41 for generating charged fine particle water; a communication channel 50 for communication between the electric fan chamber 5 and the electrostatic atomization device housing chamber 40; and a slide plate 53a for changing the opening degree of the exhaust port 53. When the amount of exhaust air decreases as suction resistance increases, the slide plate 53a reduces the opening area of the exhaust port 53 to increase exhaust resistance, allowing for increases in the amount of exhaust air flowing into the electrostatic atomization device housing chamber 40 and the amount of air discharging from a charged fine particle water discharging port 37, thereby enhancing the diffusion capability of charged fine particle water, as well as preventing the ozone concentration around electrodes of the electrostatic atomization device 41 from extremely increasing, thus preventing a user from being given an unpleasant feeling.

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner equipped with an electrostatic atomizer that generates charged fine particle water.

  In this type of conventional vacuum cleaner, a configuration in which an ion generator is arranged in an exhaust path of an electric blower has been proposed (see, for example, Patent Document 1).

  FIG. 11 is a cross-sectional view of a vacuum cleaner body of a conventional electric vacuum cleaner described in Patent Document 1. As shown in FIG. 11, a vacuum cleaner body 101 of a conventional vacuum cleaner includes an electric blower chamber 103 that houses an electric blower 102 and a dust collection bag 104 that is disposed in front of the electric blower chamber 103 and collects dust. The ion generator 110 is disposed at the upper rear portion of the cleaner body 101, and a large amount of ions generated by the ion generator 110 are discharged from the electric blower 102. A configuration has been proposed in which a part of the dust is released into the atmosphere and the floating dust is charged over a wide range, and then the dust charged by the ions is collected by the dust collection bag 104.

  In recent years, electrostatic atomizers that generate nanometer-sized negative ion mist (charged fine particle water) having a deodorizing and sterilizing action for deodorizing and sterilizing the adherent are known. (For example, refer to Patent Document 2).

  FIG. 12 is a cross-sectional view of a conventional electrostatic atomizer described in Patent Document 2. That is, as shown in FIG. 12, the electrostatic atomizer 200 includes a discharge electrode 201, a counter electrode 202 positioned opposite the discharge electrode 201, and water in the air by condensing or freezing moisture in the air. The water supply means 203 is configured by disposing the discharge electrode 201 on the cooling section 204 of the Peltier unit 206 having the cooling section 204 and the heat radiating section 205. A configuration has been proposed in which a high voltage is applied between the electrode 201 and the counter electrode 202 to atomize the water held in the discharge electrode 201 to generate nanometer-sized negative ion mist (charged fine particle water). .

  In the conventional vacuum cleaner described in Patent Document 1 described above, ions generated by the ion generator 110 are discharged into the room by using a part of the exhaust of the electric blower 102 and are convected in the room. Therefore, it takes a long time for the dust in the air charged by the ions to fall on the surface to be cleaned. Moreover, in the conventional vacuum cleaner described in the above-mentioned Patent Document 1, it is not possible to sufficiently deodorize and sterilize viruses, germs, fungi, and the like floating in the air, and a sufficient air cleaning effect. May not be obtained.

  Therefore, in order to drop the dust in the air more quickly on the surface to be cleaned, to sufficiently deodorize and sterilize viruses, germs, fungi, etc. floating in the air, and to improve the air cleaning effect, the above-mentioned A vacuum cleaner having a configuration in which the electrostatic atomizer described in Patent Document 2 described above is combined with the conventional vacuum cleaner described in Patent Document 1 has been proposed (for example, see Patent Document 3). .

  And by adding the mass of negative ion mist (charged particulate water) to the fine dust floating in the room, the fine dust and pollen fall on the floor more quickly, and the suction during cleaning By collecting with tools, the collection rate is improved.

JP 2008-212389 A JP 2006-68711 A JP 2009-254786 A

  However, in the configuration of the conventional vacuum cleaner described in Patent Document 3, negative ion mist (charged particulate water) is released into the air by a part of the exhaust of the electric blower. When the operation and suction resistance increase and the exhaust air volume decreases, the air volume supplied to the electrostatic atomizer 200 also decreases.

  When the amount of exhaust air supplied to the electrostatic atomizer 200 decreases, the diffusion capacity of ions and negative ion mist (charged fine particle water) decreases, and the deodorizing and sterilizing action and the sedimentation effect of floating dust are reduced. To do.

  Moreover, the ozone concentration around the electrode part of the electrostatic atomizer 200 becomes extremely high, and the deterioration of the resin may be accelerated. Furthermore, if it is released into the air with a low air volume and high ozone concentration, it may cause irritation to the user's respiratory system, eyes, mucous membranes, etc., causing the user to feel uncomfortable. It was.

  The present invention has been made in view of the above-described problems of the prior art. Even when the amount of exhaust air flow is small, the mass of charged fine particle water is added to the floating dust in the room to make it fall to the floor more quickly. Improves the collection rate to be absorbed from the suction tool during cleaning, and is effective in deodorizing and sterilizing dust adhered to negative ion mist (charged fine particle water). It aims at providing the vacuum cleaner which can prevent giving a pleasant feeling.

  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, an electric blower chamber that houses the electric blower, and an exhaust that discharges exhaust air from the electric blower. An opening, an electrostatic atomizer that generates charged fine particle water, an electrostatic atomizer storage chamber that stores the electrostatic atomizer, the electric blower chamber, and the electrostatic atomizer storage chamber communicate with each other. And a communication passage that allows a part of the exhaust air of the electric blower to flow into the electrostatic atomizer housing chamber, and a slide plate that is provided in the exhaust port and changes the opening of the exhaust port. Even when the resistance increases and the exhaust air volume decreases, the exhaust resistance increases by reducing the opening area of the exhaust port, and the exhaust air flowing to the electrostatic atomizer storage chamber through the communication path can be increased. , Release of charged fine particles It is possible to increase the amount of air blown out from the mouth, it is possible to improve the diffusing capacity of the negative ion mist (charged water particles).

  At the same time, the decrease in the air volume prevents the ozone concentration around the electrode part of the electrostatic atomizer from becoming extremely high, can suppress the deterioration of the resin, and the use due to the high ozone concentration Discomfort to the person can be prevented.

The vacuum cleaner of the present invention can increase the air volume for discharging charged fine particle water generated by the electrostatic atomizer even when the suction resistance increases, the suction air volume decreases, and the exhaust air volume decreases. Compared with, the ability to diffuse negative ion mist (charged fine particle water) can be improved, the fall of floating dust to the floor surface is faster, and the collection rate of dust sucked from the suction tool during cleaning is improved. In addition, it is effective in deodorizing and sterilizing dust adhered with negative ion mist (charged fine particle water), improving the air cleaning effect and preventing discomfort to the user.

1 is a perspective overview of the electric vacuum cleaner according to Embodiment 1 of the present invention. Sectional view of the vacuum cleaner body of the vacuum cleaner Cross section of electrostatic atomizer of the vacuum cleaner Control block diagram of the vacuum cleaner Correlation diagram of air flow estimation of the vacuum cleaner Correlation diagram of suction-exhaust air volume of the vacuum cleaner Correlation diagram of suction air volume and slide plate opening of the vacuum cleaner Correlation diagram of the setting of the operating section of the vacuum cleaner and the slide plate opening Correlation diagram of the state of floor detection and slide plate opening of the vacuum cleaner Sectional drawing of the vacuum cleaner main body of the vacuum cleaner in Embodiment 2 of this invention Sectional view of the vacuum cleaner body of a conventional vacuum cleaner Sectional view of a conventional electrostatic atomizer

  A first invention is an electric blower that generates suction air, an electric blower chamber that houses the electric blower, an exhaust port that discharges exhaust air from the electric blower, and an electrostatic fog that generates charged particulate water. A part of the exhaust air from the electric blower and the electric atomizer, the electrostatic atomizer storage chamber that houses the electrostatic atomizer, the electric blower chamber, and the electrostatic atomizer storage chamber. In the case where the communication passage for flowing into the electrostatic atomizer housing chamber and the slide plate provided in the exhaust port and changing the opening degree of the exhaust port are provided, and the suction resistance increases and the exhaust air volume decreases. However, by reducing the opening area of the exhaust port, the exhaust resistance increases, the exhaust air flowing to the electrostatic atomizer storage chamber through the communication path can be increased, and the amount of air blown from the charged fine particle water discharge port is increased. It is possible Since, it is possible to improve the diffusing capacity of the negative ion mist (charged water particles).

  At the same time, the decrease in the air volume prevents the ozone concentration around the electrode part of the electrostatic atomizer from becoming extremely high, can suppress the deterioration of the resin, and the use due to the high ozone concentration Discomfort to the person can be prevented.

  In particular, the second invention includes an air volume detecting means for detecting the intake air volume of the electric blower of the first invention, and further includes a slide plate opening / closing control unit that changes the opening area of the exhaust port by the slide plate according to the air volume. Therefore, the optimum opening degree of the discharge port can be set according to the amount of air flowing into the electrostatic atomizer storage chamber.

  In the third invention, in particular, the slide plate opening / closing control unit of the second invention opens the slide plate when the air volume detecting means determines that the air volume is large, and opens the slide plate when it is determined that the air volume is small. Since the amount of air blown from the discharge port can be increased even when the amount of air is small, the ability to diffuse charged fine particle water can be set optimally.

In particular, the fourth aspect of the invention includes an air inlet that communicates with the electrostatic atomizer storage chamber of any one of the first to third aspects of the invention, and the exhaust of the electric blower introduced into the electrostatic atomizer storage chamber. A part of the air is taken in by the venturi effect, outside air is taken in from the intake port, and mixed with a part of the exhaust to discharge charged particulate water from the discharge port. Even if the temperature becomes high and negative ion mist (charged fine particle water) is less likely to be generated, the temperature inside the electrostatic atomizer storage chamber is lowered by introducing outside air, and negative ion mist (
(Charged fine particle water) can be reliably generated.

  In particular, the fifth aspect of the present invention includes a hand operation unit that can change the setting of the suction air volume of any one of the first to fourth inventions, and changes the opening of the slide plate according to the setting of the hand operation unit. However, if the suction force changes depending on the setting of the local operation unit such as “strong”, “medium”, “weak”, etc., the exhaust air volume also changes due to the change of the suction force, so it is appropriate according to the setting of the local operation unit It is possible to change the opening degree of the slide plate of the exhaust port.

  In particular, the sixth invention is a suction tool for sucking the dust according to any one of the first to fifth inventions, a rotary brush that is rotatably arranged on the suction tool and scrapes up the dust, and rotationally drives the rotary brush. And a floor surface detecting means for determining the state of the floor surface according to the current flowing when the motor is driven, and the opening of the exhaust port is changed depending on the state of the floor surface, and flows to the rotating brush. Since the suction resistance can be estimated by the current, the suction air volume can be estimated, so that the exhaust air volume flowing into the electrostatic atomizer housing chamber can be estimated and the optimum opening of the slide plate can be set.

  In a seventh aspect of the invention, in particular, when the amount of air flowing through the communication passage of any one of the first to sixth aspects is below a certain value, generation of charged fine particle water by the electrostatic atomizer is suppressed. However, if the air flow is extremely reduced, such as when the suction port of the suction tool is blocked, the generation of charged fine particle water in the electrostatic atomizer is refrained, and the generation of accompanying ozone is suppressed. It is possible to suppress an increase in the ozone concentration and prevent discomfort to the user.

  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 a perspective view of the electric vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a main body of the electric vacuum cleaner, and FIG. 3 is an electrostatic atomizer of the electric vacuum cleaner. 4 is a control block diagram of the vacuum cleaner, FIG. 5 is a correlation diagram of air flow estimation of the vacuum cleaner, FIG. 6 is a correlation diagram of suction-exhaust air flow of the vacuum cleaner, and FIG. 7 is a correlation diagram between the suction air volume of the electric vacuum cleaner and the slide plate opening, FIG. 8 is a correlation diagram between the setting of the hand operating unit of the electric vacuum cleaner and the slide plate opening, and FIG. 9 is the electric vacuum cleaner. It is a correlation diagram of the state of the floor surface detection of, and a slide board opening degree.

  As shown in FIGS. 1 to 4, the vacuum cleaner in the present embodiment mainly includes a cleaner body 1, a suction tool 2 that sucks dust on the surface to be cleaned, and one end detachably attached to the cleaner body 1. The hose 3 to be connected is composed of an extension pipe 4 that has one end connected to the other end of the hose 3 and the other end connected to the suction tool 2.

  An electric blower chamber 5 is provided inside the cleaner body 1 (see FIG. 2), and an electric blower 6 that generates suction air is built therein.

  In addition, a dust collection chamber 7 is provided on the upstream side of the electric blower 6 in the vacuum cleaner body 1. The dust collection chamber 7 is detachably disposed and is electrically processed to collect dust sucked from the suction tool 2. A dust bag 8 is stored. The dust bag 8 is made of thermoplastic fibers such as polypropylene, and is charged by being rubbed with suction air or the like.

  Traveling wheels 9 are rotatably attached to both sides of the lower rear portion of the vacuum cleaner main body 1, and a traveling caster 10 is similarly attached to the front bottom surface.

The suction tool 2 includes a rotating brush 11 that scrapes dust on the surface to be cleaned and a commutator motor 13 that rotationally drives the rotating brush 11 via a belt 12. The commutator motor 13 is phase-controlled by the phase control means 15 of the motor drive unit 14 to perform variable speed operation.

  Further, a floor detection means 17 for detecting the load state of the floor according to the magnitude of the current value is provided by current detection means 16 for detecting the current of the commutator motor 13 that drives the rotary brush 11.

  The electric blower 6 includes a commutator motor 21 and a blower fan 22, and is phase-controlled by the phase control means 24 of the electric blower drive unit 23 to perform variable speed operation.

  Further, the cleaner body 1 includes a control unit 30 that controls the electric blower 6, the commutator motor 13, and the like.

  A hand operating unit 31 is provided at the end of the hose 3 on the side of the extension pipe 4. Based on a signal from the hand operating unit 31, the control unit 30 performs various operation modes (“strong” ”,“ Medium ”,“ Weak ”suction force,“ Stop ”, etc.).

  In addition, a dust detector 32 that detects the amount of dust sucked from the suction tool 2 is provided at the end of the hose 3 on the cleaner body 1 side. The dust detection unit 32 includes a light emitting element 32a and a light receiving element 32b, and the light emitting element 32a and the light receiving element 32b are arranged to face each other.

  The dust detector 32 detects a pulse waveform generated when light received by the light receiving element 32b is blocked by dust when the dust passes between the light emitting element 32a and the light receiving element 32b. The amount of detected.

  The control unit 30 also controls the operation of the electric blower 6 and the rotating brush 11 based on the amount of dust detected by the dust detection unit 32.

  As shown in FIG. 2, an electrostatic atomizer storage chamber 40 separated from the electric blower chamber 5 by a resin or the like is provided above the vacuum cleaner body 1, that is, above the electric blower chamber 5. Is provided. The electrostatic atomizer storage chamber 40 includes an electrostatic atomizer 41 that generates charged fine particle water and an electrostatic atomizer drive unit 42 that controls the electrostatic atomizer 41. A charged fine particle water discharge port 37 is provided behind the electroatomizer storage chamber 40.

  The electric blower chamber 5 and the electrostatic atomizer housing chamber 40 are communicated with each other through a communication passage 50, and a part of the exhaust air from the electric blower 6 (arrow Y in the figure) passes through the communication passage 50. It is configured to flow into the electrostatic atomizer storage chamber 40 and be discharged from the charged fine particle water discharge port 37.

  Further, an exhaust port 53 for exhausting exhaust air from the electric blower 6 is provided behind the cleaner body 1. The exhaust port 53 is provided with a slide plate 53a that adjusts the amount of exhaust air to be discharged. The slide plate 53a passes through the slide plate opening / closing control unit 52 based on a command from the control unit 30, and the electric motor 53b, It moves up and down along the guide 53d via the gear 53c to adjust the opening area of the exhaust port 53. In the present embodiment, the slide plate 53a is an interdigital shape and can be freely opened and closed even on a curved surface.

  Further, a filter 54 is provided in the communication path 50 so that dust does not enter the electrostatic atomizer housing chamber 40.

  Further, an air volume detecting means 55 for detecting the intake air volume of the electric blower 6 is provided. The air flow detection means 55 detects the voltage applied to the commutator motor 21 of the electric blower 6 by the voltage detection unit 55a, detects the current I flowing through the electric blower 6 by the current detection unit 55b, and conducts the phase angle for phase control. From FIG. 5, the intake air volume is estimated, and the exhaust air volume G2 flowing through the communication passage 50 is also estimated from the correlation with the intake air volume Q as shown in FIG.

  As shown in FIGS. 2 and 3, the electrostatic atomizer 41 includes a Peltier element 60, a needle electrode 61 connected to the cooling side of the Peltier element 60, and a heat dissipation connected to the heat dissipation side of the Peltier element 60. A voltage is applied to the Peltier element 60, a fin 62, a ground electrode 63 disposed on the tip side of the needle electrode 61, a high voltage generation circuit 64 that applies a high voltage between the needle electrode 61 and the ground electrode 63, and And a DC power supply unit 65 to be applied.

  The needle electrode 61 and the heat radiation fin 62 are electrically insulated from the Peltier element 60 but are connected to the Peltier element 60 in terms of temperature transmission. When a voltage is applied to the Peltier element 60, the needle-like electrode 61 connected to the cooling side of the Peltier element 60 is cooled, and heat dissipation of the Peltier element 60 is performed by the heat dissipation fins 62 connected to the heat dissipation side of the Peltier element 60. The heat generated on the side is dissipated.

  The electrostatic atomizer driving unit 42 is operated by supplying electric power to the electrostatic atomizer 41 according to a command from the control unit 30. When power is supplied to the electrostatic atomizer 41, power is supplied to the high voltage generation circuit 64 and the DC power supply unit 65, and voltage is applied to the needle electrode 61, the ground electrode 63, and the Peltier element 60.

  As shown in FIG. 4, the control unit 30 is configured by a microcomputer or the like, and the control unit 30 takes in signals from the hand operating unit 31 and the dust detection unit 32 operated by the user and outputs the signals. In addition, control is performed to output an ignition pulse for phase control of the electric motor drive unit 14 and the electric blower drive unit 23. The electric motor drive unit 14 and the electric blower drive unit 23 control the commutator electric motor 13 and the electric blower 6, respectively, based on a signal from the control unit 30. The electric blower drive unit 23 is configured by a bidirectional thyristor or the like, and controls the phase of the electric blower 6 to vary the suction force.

  Further, the control unit 30 sets the energization phase of the rotary brush 11 with respect to the electric motor drive unit 14 based on the setting of the hand operation unit 31, the load state of the floor surface obtained from the floor surface detection means 17, and the suction air volume of the electric blower 6. Changing the corner. For example, the energization phase angle is decreased in the order of setting of the hand operation unit 31, “strong”, “medium”, and “weak”, and the energization phase angle is smaller as the load is smaller (the current value is smaller) in the floor surface detection means 17 Control to make it smaller.

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

  For example, when the user operates the hand operation unit 31 and selects “strong” having a strong suction force as the operation mode of the electric blower 6, the control unit 30 performs electric driving based on a signal from the hand operation unit 31. A predetermined signal is sent to the blower drive unit 23 and the motor drive unit 14 to drive the electric blower 6 and the commutator motor 13.

Thereby, the dust on the surface to be cleaned is scraped up by the rotating brush 11 and sucked from the suction tool 2 by the suction air generated by the electric blower 6. The sucked dust is collected by the dust collection bag 8 in the cleaner body 1 through the extension pipe 4 and the hose 3. As shown by an arrow X in FIG. 2, the exhaust air from the electric blower 6 is exhausted to the outside of the cleaner body 1 through an exhaust port 53 provided at the rear of the cleaner body 1, and a part thereof 2, as indicated by an arrow Y, it flows into the electrostatic atomizer housing chamber 40 through the communication path 50 and is discharged from the charged fine particle water discharge port 37.

  The control unit 30 drives the electric blower 6 and the commutator motor 13 and simultaneously sends a signal to the electrostatic atomizer driving unit 42 to supply power to the electrostatic atomizer 41, and the high voltage generation circuit 64. And the DC power supply unit 65 is operated. The DC power supply unit 65 applies a voltage to the Peltier element 60 and cools the needle electrode 61.

  When the needle electrode 61 is cooled, water around the needle electrode 61 is condensed, and water is generated on the needle electrode 61. At this time, a high voltage (for example, about 6000 V) is applied between the needle electrode 61 and the ground electrode 63 by the high voltage generation circuit 64, and therefore, between the needle electrode 61 and the ground electrode 63. Corona discharge occurs, a high voltage is applied to the water generated on the needle electrode 61, and charged fine particle water (for example, a diameter of 5 mm to 20 mm) is generated.

  The charged fine particle water generated by the electrostatic atomizer 41 is discharged by a part of the exhaust air of the electric blower 6 that has flowed into the electrostatic atomizer storage chamber 40 via the communication path 50. 37 is discharged to the outside of the cleaner body 1.

  Here, considering the case where the suction load such as a carpet is large, the suction wind of the electric blower 6 is reduced and the exhaust air flowing into the electrostatic atomizer housing chamber 40 is also reduced. By adding the mass of the charged fine particle water to the fine dust that is lowered and floating in the room, the sedimentation effect that makes the fine dust, pollen, etc. fall to the floor surface earlier is reduced.

  Also, if the ozone concentration around the electrode is extremely high and the deterioration of the resin accelerates, or if ozone is released into the air with a low air volume, the ozone concentration will increase and the respiratory system of the user This may cause irritation to the eyes, mucous membranes, etc., and cause discomfort to the user.

  Therefore, as shown in FIG. 7, when the air volume detecting means 55 detects that the intake air volume has decreased, the discharge resistance is increased by operating the slide plate 53 a of the exhaust port 53 in the closing direction, and the communication resistance is increased via the communication path 50. The amount of exhaust air flowing into the electrostatic atomizer storage chamber 40 can be increased, and the charged fine particle water can be released to a distance even when the intake air amount is small. And the sedimentation effect of dust and the like can be improved.

  Moreover, since an air volume can be increased, it can suppress that ozone concentration becomes high and can prevent giving a user discomfort.

  Also, when the standard “medium” suction force is selected and when “weak” low suction force is selected, the slide plate 53a of the exhaust port 53 is moved in the closing direction as the suction force decreases. Thus, even when the suction air volume is small as described above, the exhaust air volume flowing into the electrostatic atomizer housing chamber 40 can be increased to improve the ability to diffuse charged particulate water. Moreover, ozone concentration can be suppressed and it can prevent giving a user discomfort.

  Further, in the setting of the hand operation unit 31, since the suction air volume decreases in the order of “strong”, “medium”, and “weak”, the air volume is reduced according to the setting of the hand operation unit 31 as shown in FIG. By operating in the direction in which the slide plate 53a of the exhaust port 53 is closed in this order, the ability to diffuse charged particulate water can be improved even with a small amount of suction air.

Further, in the setting of the floor surface detection means 17, the state of the load on the floor surface is detected based on the current value of the commutator motor 13, and in order of increasing load, the “long carpet with short hairs”, “the carpet with short hairs”, "tatami"
, “Flooring” and “getting out of bed”. As the load on the floor is heavier, it is considered that the intake air volume decreases. Therefore, by operating the slide plate 53a of the exhaust port 53 in the closing direction as shown in FIG. 9 according to the detection state of the floor surface detection means 17. Even when the amount of intake air is small, the amount of exhaust air flowing into the electrostatic atomizer housing chamber 40 can be increased and the charged fine particle water can be sent far away, so that the ability to diffuse charged fine particle water can be improved.

  Further, when the suction resistance of the suction tool 2 is remarkably increased, or when the suction port (not shown) of the suction tool 2 is blocked, the suction air volume Q is extremely reduced (point P in FIG. 7). , The amount of exhaust air flowing from the electric blower chamber 5 through the communication passage 50 into the electrostatic atomizer housing chamber 40 is greatly reduced, and the amount of air discharged from the charged fine particle water discharge port 37 even if it is throttled by the slide plate 53a. Because of the drastic decrease, the diffusion effect of charged fine particle water is lost.

  Further, since the ozone concentration also tends to increase, when the suction air flow becomes a certain value or less, the control unit 30 refrains from generating the charged fine particle water of the electrostatic atomizer 41, thereby accompanying the generation of the charged fine particle water. Generation | occurrence | production of the ozone which can be suppressed can be suppressed, the raise of ozone concentration can be suppressed, and the discomfort to a user can be prevented.

  Furthermore, the influence of the deformation | transformation etc. to a peripheral component by the heat_generation | fever of the electrostatic atomizer 41 can be prevented. The slide plate 53a is for increasing the exhaust resistance of the exhaust port 53, and the shape and means thereof are not particularly limited as long as the opening area of the exhaust port 53 can be changed.

(Embodiment 2)
FIG. 10 is a cross-sectional view of the vacuum cleaner main body of the electric vacuum cleaner according to the second embodiment of the present invention. In addition, about the structure and components which overlap with Embodiment 1 mentioned above, the same code | symbol is provided and the description is abbreviate | omitted.

  In FIG. 10, an electric blower 72 composed of a blower fan 72a and a commutator motor 72b is built in an electric blower chamber 71 of a vacuum cleaner main body 70 of the vacuum cleaner in the present embodiment.

  An intake port 81 for taking in outside air is provided at the upper front in the electrostatic atomizer housing chamber 80 for housing the electrostatic atomizer 41. A part of the exhaust air of the electric blower 72 introduced into the electrostatic atomizer storage chamber 80 through the communication passage 82 communicating with the electrostatic atomizer storage chamber 80 and the electric blower chamber 71 is caused by the venturi effect. The outside air is sucked from 81. Then, a part of the outside air and the exhaust air is mixed in the electrostatic atomizer housing chamber 80, and the charged fine particle water generated by the electrostatic atomizer 41 is discharged from the charged fine particle water discharge port 84.

  An air filter 85 is detachably provided at the air inlet 81 to prevent dust in the air from entering the electrostatic atomizer housing chamber 80 from the air inlet 81 when the air is sucked. ing.

  As described above, in the present embodiment, even if the suction load is large and the exhaust amount of the electric blower 72 is reduced, and the exhaust temperature becomes high due to the heat generated by the electrostatic atomizer 41, it is difficult to generate charged particulate water. By introducing the outside air, the temperature in the electrostatic atomizer housing chamber 80 can be lowered, and the charged fine particle water can be stably generated.

  Therefore, the generation of charged fine particle water can be improved, and the amount of air containing charged fine particle water from the charged fine particle water discharge port 84 can be increased, and the sedimentation effect of dust and the like can be improved.

  Moreover, ozone concentration can be suppressed and it can prevent giving a user discomfort.

  As described above, the vacuum cleaner according to the present invention can improve the diffusing capacity of charged fine particle water, and suppress an abnormal increase in ozone concentration to prevent discomfort to the user. It is possible to provide a vacuum cleaner that can generate various types of household and commercial vacuum cleaners equipped with electrostatic atomizers that generate charged particulate water, and other types that generate ions in a similar manner. It is also useful for application deployment to electrical equipment.

5, 71 Electric blower chamber 6, 72 Electric blower 13, 21, 72b Commutator electric motor (electric motor)
17 Floor surface detection means 31 Hand operating part 37, 84 Charged particulate water discharge port (discharge port)
41 Electrostatic atomizer 40, 80 Electrostatic atomizer storage chamber 50, 82 Communication path 52 Slide plate opening / closing control unit 53 Exhaust port 53a Slide plate 55 Air volume detection means 81 Inlet port

Claims (7)

An electric blower that generates suction air, an electric blower chamber that houses the electric blower, an exhaust port that discharges exhaust air from the electric blower, an electrostatic atomizer that generates charged particulate water, and the static An electrostatic atomizer housing chamber that houses an electroatomizer, the electric blower chamber, and the electrostatic atomizer housing chamber communicate with each other and a part of the exhaust air from the electric blower is transferred to the electrostatic atomizer. An electric vacuum cleaner comprising: a communication path that flows into a storage chamber; and a slide plate that is provided in the exhaust port and changes an opening degree of the exhaust port. 2. The electric cleaning according to claim 1, further comprising an air volume detecting means for detecting an intake air volume of the electric blower, and a slide plate opening / closing control unit that changes an opening area of the exhaust port by a slide plate according to the air volume. Machine. 3. The electric cleaning according to claim 2, wherein the slide plate opening / closing control unit opens the slide plate when the air volume detecting unit determines that the air volume is large, and adjusts the slide plate in a closing direction when it is determined that the air volume is small. Machine. An air inlet that communicates with the electrostatic atomizer housing chamber, and part of the exhaust of the electric blower introduced into the electrostatic atomizer housing chamber draws outside air from the air inlet due to the venturi effect, The vacuum cleaner according to any one of claims 1 to 3, wherein the vacuum cleaner discharges charged fine particle water from a discharge port mixed with a part thereof. The vacuum cleaner according to any one of claims 1 to 4, further comprising a hand operation unit that can change a setting of the suction air volume, and changing an opening degree of the slide plate according to the setting of the hand operation unit. A suction tool for sucking dust, a rotary brush that is rotatably arranged on the suction tool and scrapes up dust, an electric motor that rotates the rotary brush, and an electric current that flows when the electric motor is driven. The vacuum cleaner according to any one of claims 1 to 5, further comprising a floor surface detecting means for determining a state, and changing an opening of the exhaust port according to the state of the floor surface. The electricity according to any one of claims 1 to 6, wherein generation of charged fine particle water by the electrostatic atomizer is suppressed when the amount of air flowing through the communication path is a certain value or less. Vacuum cleaner.