JP5084852B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner having a function of performing deodorization and sterilization in a cleaner and keeping the interior of the cleaner clean, and more particularly to a vacuum cleaner having improved deodorization efficiency and sterilization efficiency by utilizing ozone. Is.

  In recent years, from the viewpoint of hygiene, a vacuum cleaner is required to keep the inside of the cleaner clean. Generally, after using a vacuum cleaner a plurality of times, waste such as dust accumulated in the dust collecting part is often discarded. Accordingly, dust is accumulated in the dust collecting portion for a long period of time. Therefore, the odor component and various germs contained in the trash are propagated inside the vacuum cleaner, and the hygiene in the vacuum cleaner is impaired. In addition, when the vacuum cleaner is activated, the odor components and germs inside the vacuum cleaner are discharged into the room together with the exhaust flow, resulting in discomfort to the user.

In order to reduce this, a vacuum cleaner is proposed that is equipped with technologies such as deodorizing function and disinfecting function by providing ozone generating means in the vacuum cleaner and generating ozone by simple operation. Has been. Ozone (O ₃ ) is very unstable and has a characteristic of giving one of oxygen atoms to another substance and trying to become a stable oxygen molecule (O ₂ ). That is, ozone has a strong oxidizing power. However, due to its oxidizing power, ozone disappears before reaching the object to be deodorized. That is, in order to suppress the disappearance of ozone, it is necessary to install an ozone generation unit as close as possible to the debris that is to be deodorized. Therefore, by installing an ozone generation unit inside the dust collection unit, ozone is directly brought into contact with the collected garbage, and the deodorizing and sterilizing effect inside the cleaner by ozone is enhanced (for example, Patent Document 1).

Japanese Patent Laid-Open No. 2004-113469 (FIG. 2)

  However, the general vacuum cleaner is configured so that the dust collection unit can be removed from the main body, and there is no exception even if the ozone generation unit is installed inside the dust collection unit. Therefore, when removing the dust collecting part, the ozone generating unit is also removed together. In this case, because the ozone generation unit is inside the dust collection unit, there are problems that the ozone generation unit gets caught in the ozone generation unit when it is thrown away, and that the water cannot be washed to prevent electrical leakage. There was a problem that the property was impaired.

  The technical problem of the present invention is to enable direct introduction of ozone into the dust collection chamber without impairing the maintenance of the dust collection unit or causing poor conduction between the ozone generation means and the main body. There is.

The vacuum cleaner according to the present invention has the following configuration. That is, a vacuum cleaner body in which an intake port, a suction power unit, and an exhaust port are provided in order, a dust collection unit that is detachably disposed between the suction port and the suction power unit of the vacuum cleaner unit, and ozone in the dust collection unit. In an electric vacuum cleaner having an ozone generating unit for introduction and having a ventilation path from the intake port to the exhaust port through the suction power unit with the dust collecting unit installed, the ozone generating unit is When the dust collector is placed on the vacuum cleaner main body and attached to the vacuum cleaner main body, at least a part of the ozone generation unit is contained in the dust collector and the communication port of the dust collector opens to open the dust collector. And the ozone generating unit communicate with each other.

In the electric vacuum cleaner of the present invention, to place the ozone generating unit in the cleaner body side, when worn on the cleaner body of the particulate collection portion, the condensing at least a portion of the ozone generating unit is included in the dust collecting unit When the dust collection port opens and the dust collection unit communicates with the ozone generation unit, that is, when the dust collection unit is removed from the main body of the vacuum cleaner, the ozone generation unit is separated from the dust collection unit and collected. Since the communication port of the dust part is configured to be closed , the user can attach and detach the dust collection part from the main body of the cleaner without worrying about spillage of the dust or ozone leakage, thereby improving maintainability. In addition, during maintenance of the dust collection section, it is possible to guide ozone directly to the dust collection chamber without impairing the maintainability of the dust collection chamber or causing poor conduction between the ozone generation means and the cleaner body. Become.

It is a perspective view which shows the external appearance of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is side surface sectional drawing which shows the flow of the air in the vacuum cleaner main-body part of the vacuum cleaner which concerns on Embodiment 1 of this invention. FIG. 3 is an enlarged detail view of part a in FIG. 2. It is a block diagram of the ozone production | generation part of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is a block diagram which shows the control circuit mounted in the vacuum cleaner main body of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is principal part detail drawing equivalent to FIG. 3 which shows the state before mounting | wearing the vacuum cleaner main body with the dust collection part of the vacuum cleaner which concerns on Embodiment 1 of this invention. It is principal part detail drawing equivalent to FIG. 6 which shows the state before mounting | wearing the vacuum cleaner main body with the dust collection part of the vacuum cleaner which concerns on Embodiment 2 of this invention.

Embodiment 1 FIG.
1 is a perspective view showing an external appearance of a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a side sectional view showing the flow of air in the main body of the vacuum cleaner, and FIG. 3 is an enlarged view of part a in FIG. Detailed view, FIG. 4 is a configuration diagram of the ozone generating unit, FIG. 5 is a block diagram showing a control circuit mounted on the cleaner body, and FIG. 6 shows a state before the dust collecting unit is mounted on the cleaner body. FIG. 4 is a detailed view of a main part corresponding to FIG.

  As shown in FIG. 1, the vacuum cleaner of the present embodiment is composed of a suction port 1, an extension pipe 2, a connection pipe 3, a hose 4, a cyclone type vacuum cleaner body 5, and a power cord 6. ing. The suction port 1 sucks in dust and dust-containing air on the floor surface, and one end of a straight cylindrical extension pipe 2 is connected to the outlet side of the suction port 1. One end of the connection pipe 3 is connected to the other end of the extension pipe 2. The connection pipe 3 has a slightly bent shape in the middle, and is provided with a handle 2b on which an operation switch 2a for controlling the operation of the electric vacuum cleaner 100 is installed. One end of a flexible bellows-like hose 4 is connected to the other end of the connection pipe 3. Furthermore, the other end of the hose 4 is connected to the cleaner body 5. A power cord 6 is connected to the vacuum cleaner main body 5, and the power cord 6 is connected to an external power source so that it is energized and operates. The suction port 1, the extension pipe 2, the connection pipe 3, and the hose 4 constitute a part of a flow path for allowing dust-containing air to flow from the outside to the inside of the cleaner body 5.

  As shown in FIG. 2, the vacuum cleaner body 5 includes a hose connection portion 7, a suction air passage 8, an ozone generation unit 20 connected to the upper portion of the suction air passage 8, a cyclone dust collection portion 30, and a connection port 9. The connection air path 10, the filter part 11, and the suction power part 12 are provided. In addition, the cleaner body 5 is provided with a control board, a display unit, a cord reel unit, a wheel, an exhaust port, and the like (not shown).

  Therefore, the air flowing in from the outside of the cleaner body 5 passes through the hose connection portion 7 and the suction air passage 8 and is filtered by the cyclone dust collecting portion 30, and the filtered air is connected to the connection air passage 10. The filter 11, the suction power unit 12, and an exhaust port (not shown) are sequentially discharged to the outside of the cleaner body 5.

  More specifically, the cyclone dust collecting unit 30 includes a dust collecting chamber 31, a swivel unit 32, and a dust collecting unit lid 33 as shown in FIGS. The revolving unit 32 is connected to the suction air passage 8 and the connection port 9 so as to be removable from the cleaner body 5. The dust contained in the air that has passed through the suction air passage 8 is centrifuged by the swivel unit 32 and collected in the dust collection chamber 31. The dust collector lid 33 is provided with a cylindrical recess 34 that is recessed from the tip surface. The circular flat portion serving as the bottom of the recess 34 is positioned in parallel to the opening portion of the connecting portion 35 of the swivel portion 32 and the dust collecting chamber 31.

  Next, the connection part of the ozone generation unit 20 and the cyclone dust collection part 30 is demonstrated. The cyclone dust collecting unit 30 is connected to the cleaner body 5 as shown in FIGS. 2 and 3. The ozone generation unit 20 includes an ozone generation port 21, an ozone generation unit 22, and an ozone generation unit lid body 23 that opens and closes the ozone generation port 21, and is disposed on the cleaner body side. Further, when the cyclone dust collecting unit 30 is attached to the cleaner body 5, a part including at least the ozone generating port 21 of the ozone generating unit 20 is included in the concave portion 34 of the dust collecting unit lid 33, and these cyclone collecting units are included. The dust part 30 and the ozone generation unit 20 are configured to be connected in communication.

  That is, the ozone generating port connecting portion 36 is installed on the side surface of the concave portion 34, and the connecting portion lid 37 and the portion that contacts the outer surface of the dust collecting chamber 32 inside the concave portion 34 are always placed in the closing direction. An urging spring 37a is provided. As shown in FIG. 3, the ozone generation unit 20 and the cyclone dust collecting unit 30 are not integrated, but are formed as separate parts. The cyclone dust collecting unit 30 can be easily attached to and detached from the cleaner main body 5 and can be maintained and managed by the user, but the ozone generation unit 20 is integrated with the cleaner main body 5.

  In the state where the cyclone dust collecting unit 30 is installed in the cleaner body 5 as shown in FIG. 3, the ozone generating unit lid body 23 is opened. In addition, the connecting portion lid 37 that opens and closes the ozone generating port connecting portion 36 is also opened when the cyclone dust collecting portion 30 is installed in the cleaner body 5. Therefore, the ozone generating port 21 of the ozone generating unit 20 can communicate with the ozone generating port connecting portion 36 on the side surface of the concave portion 34 of the dust collecting portion lid 33.

  Next, the ozone production | generation part 22 is demonstrated. As shown in FIG. 4, the ozone generation unit 22 includes a discharge electrode 22a and a ground electrode 22b. The structure is such that corona discharge is generated when a high voltage is applied to the needle-like discharge electrode 22a. The ozone generation method using electric discharge, especially corona discharge, has a stable amount of ozone generation, and can generate a sufficiently high ozone concentration even in a small and simple shape. For example, the ozone concentration can be changed in accordance with the amount of dust held, and therefore, it is suitable for use in a vacuum cleaner. The ozone generator 22 is not limited to this shape, and may be one using creeping discharge or barrier discharge. As another ozone generation method, there is a method other than the discharge using an ultraviolet lamp or the like, which may be used.

  Next, the filter unit 11 will be described. The filter unit 11 may have a performance of removing ozone. Since the filter unit 11 has an ozone removing performance, ozone contained in the air can be removed before the air is exhausted during the operation of the suction power unit 12, thereby generating higher concentration ozone. However, ozone is not leaked into the space outside the cleaner body 5, and the deodorizing and sterilizing effects of dust can be enhanced without causing the user to feel the ozone odor.

  Furthermore, the filter part 11 is good to have a deodorizing performance and a bactericidal performance as well as an ozone removing performance. The filter unit 11 itself has a deodorizing / sterilizing function, and when the filter unit 11 removes ozone, the odor and bacteria collected on the filter unit 11 can collide with ozone. However, since the filter part 11 is regenerated, the effect of deodorizing and sterilizing dust can be further enhanced.

  Next, the ozone generation operation will be described with reference to FIG. 5 together with the description of the configuration of the control circuit of the vacuum cleaner according to the present embodiment.

  As shown in the block diagram of FIG. 5, the control circuit 50 receives signals from the operation switch 2 a, the suction power unit 12, and the cyclone dust collecting unit connection confirmation sensor 13 and operates. And an ozone generation unit control means 52 that operates in response to a command from the signal processing unit 51 and inputs to the external display unit 14 and the ozone generation unit 22. That is, the signal processing unit 51 controls the ozone generation unit based on the ON / OFF signal from the operation switch 2a, the drive signal from the suction power unit 12, and the connection / release signal from the cyclone dust collection unit connection confirmation sensor 13. A predetermined command is sent to the means 52 to control the operation of the ozone generator 22.

  Basically, the operation of the ozone generator 22 is controlled by signals from the operation switch 2 a and the suction power unit 12. Immediately after the suction power unit 12 stops operating or when the user turns off the operation switch 2a, the signal processing unit 51 receives the signal and transmits the signal to the ozone generation unit control means 52. The ozone generation unit control means 52 receives a signal from the signal processing unit 51, supplies electricity to the ozone generation unit 22 only for a predetermined time, and generates ozone from the ozone generation unit 22 for a predetermined time. At the same time, the ozone generation unit control means 52 sends a signal to the display unit 14. The display unit 14 receives this signal and continues to display that ozone is generated for a predetermined time during which ozone is generated.

  When the operation switch 2a is pressed while the ozone generation unit 22 is operating and the signal processing unit 51 receives an ON signal, a signal is sent from the signal processing unit 51 to the ozone generation unit control means 52, The operation of the generation unit 22 is interrupted. In addition, a signal is transmitted from the ozone generation unit control means 52 to the display unit 14, and the display unit 14 notifies the user that generation of ozone has been interrupted.

  When the opening signal from the cyclone dust collecting unit connection confirmation sensor 13 is sent to the signal processing unit 51 and it is detected that the cyclone dust collecting unit 30 has been removed, the signal processing unit 51 sends the signal to the ozone generating unit control means 52. The ozone generator 22 is controlled not to operate until a signal is sent and a connection signal notifying that the cyclone dust collector 30 is attached is sent from the cyclone dust collector connection confirmation sensor 13 to the signal processor 51. The Moreover, even if the ozone production | generation part 22 is operate | moving, it is interrupted. At the time of interruption, a signal is also transmitted from the ozone generation unit control means 52 to the display unit 14, and the display unit 14 notifies the user that the generation of ozone has been interrupted.

  Here, the display part 14 should just be what notifies a user about generation | occurrence | production of ozone, and does not limit the means. For example, it may be an LED or a liquid crystal panel that allows the user to visually confirm the generation of ozone, a speaker that can be confirmed by hearing, or a vibration function that can be confirmed by touch.

In the electric vacuum cleaner of the present embodiment having the above configuration, the ozone concentration to be generated can be calculated by the following equation, for example.
Amount of ozone = amount of ozone generated per unit time x generation time (seconds) (1)
Concentration of ozone inside the vacuum cleaner (ppm) = amount of ozone / volume inside the vacuum cleaner (mm ³ ) (2)

  According to the equations (1) and (2), the ozone generation amount per unit time of the ozone generation unit 20 and the volume inside the cleaner are known, so by controlling the energization time to the ozone generation unit, It is possible to fill the vacuum cleaner with a desired concentration of ozone. Therefore, deodorization and sterilization inside the vacuum cleaner can be performed safely and efficiently without generating ozone more than necessary.

However, when the distance between the place where ozone is generated and the object to react with ozone are far and the moving distance of ozone is long, ozone reacts with the constituent members of the air path and disappears in the guided air path. In the cyclone type vacuum cleaner, dust that is deodorized and sterilized by ozone is stored in a dust collection unit, and the distance between the ozone generation unit and the dust collection unit that is the target of ozone is separated. Therefore, it is necessary to consider the equation (2) as follows.
Ozone loss = reaction amount of ozone with the components per unit time x time (seconds) required to reach the place where ozone is introduced (seconds) ………………………………………………………………………………………………………………………………………………………… (3)
(I) When the amount of ozone minus the amount of ozone lost> 0 Ozone concentration (ppm) where ozone is introduced = (ozone amount-ozone lost amount) / volume inside the vacuum cleaner (mm ³ ) …………………………………………………………………………………… ………………………………………………………………………… (4-1)
(Ii) When the amount of ozone minus the amount of ozone lost ≤ 0 Ozone concentration (ppm) where ozone is introduced = 0 · · · · · · · · · · · · · · (4-2)

  As described above, the closer the ozone generation unit 20 and the object to react with ozone, that is, the ozone generation unit 20 and the dust, can efficiently react with ozone.

  That is, the most efficient method is to enclose the ozone generation unit 20 in the cyclone dust collecting unit 30. However, in order to generate high-concentration ozone in a short time, a discharge phenomenon and ultraviolet light are necessary, and supply of ozone generation unit electricity is indispensable. The vacuum cleaner of the present embodiment removes the cyclone dust collecting unit 30 from the cleaner body 5 and throws away the dust in the dust collecting chamber 31. Therefore, for example, if the dust collection chamber 31 and the ozone generation unit 20 are integrated, the ozone generation unit 22 is an electrical component as described above, so that washing with water is prohibited to prevent leakage and rust. Therefore, it is necessary to limit the maintenance, and the maintainability deteriorates.

  From these things, as shown in this Embodiment, in the state where the cyclone dust collection part 30 is installed in the cleaner body 5, the ozone generation unit 20, especially the ozone generation part 22 therein is the cyclone dust collection part. When the cyclone dust collecting unit 30 is removed, the ozone generation unit 20 remains on the cleaner body side and is separated from the cyclone dust collecting unit 30. Is good.

  In the state where the cyclone dust collecting unit 30 is connected to the cleaner body 5, the dust collecting chamber 31 and the ozone generating unit 20 are in communication with each other as shown in FIG. 3, which prevents the ozone from flowing into the cyclone dust collecting unit 30. There is nothing. However, in the state as it is, when the cyclone dust collecting part 30 is removed, dust may spill out from the ozone generation port coupling part 36 of the dust collecting chamber 31 and the maintenance performance may be hindered. In addition, ozone remaining from the ozone generation port 21 of the ozone generation unit 20 may leak and the user may feel uncomfortable due to the ozone odor.

  Therefore, in the present embodiment, when the cyclone dust collecting unit 30 is removed from the cleaner body 5, the connecting unit lid 37 and the ozone generating unit lid 23 are caused by the restoring force of the spring as shown in FIG. It moves up and down, and the ozone generating port connecting portion 36 and the ozone generating port 21 are automatically closed. Accordingly, the user can attach and detach the cyclone dust collecting unit 30 from the cleaner body 5 without worrying about dust spillage or ozone leakage, and the maintainability is further improved.

  As described above, the ozone generation unit 20 includes at least a part including the ozone generation port 21 at the bottom of the cyclone dust collection unit 30 when the cyclone dust collection unit 30 is attached to the cleaner body 5, that is, the front end surface. It is arrange | positioned so that it may become inward to the cylindrical recessed part 34 which dents from. As described above, even in the detachable cyclone dust collecting unit 30, the ozone generating port 21 is located at the bottom of the cyclone dust collecting unit 30, so that the dust collected in the cyclone dust collecting unit 30 is close to the distance. Ozone can be generated and ozone can be reacted efficiently.

  The position and shape of the recess 34 are not limited to the bottom of the cyclone dust collecting unit 30 as in the present embodiment, but the cyclone dust collecting by installing it on the opposite side of the connection port 35 as shown in FIG. The effect of suppressing re-scattering of dust collected in the dust collecting chamber 31 without interfering with the operation of the unit 30 is obtained.

  Further, since the concave portion 34 has a cylindrical shape as described above, it is possible to prevent dust from being caught in the concave portion 34 and to suppress a decrease in the amount of ozone generated due to dust adhering to the ozone generating port connecting portion 36.

  Furthermore, if the ozone generating port connecting portion 36 is installed on the opposite side of the connecting port 35, dust may flow directly into the ozone generating port connecting portion 36 and may enter the ozone generating unit 20 inside. By disposing the ozone generation port coupling portion 36 on the side surface of the recess 34 as in the present embodiment, it is possible to prevent dust from entering the ozone generation unit 20.

Next, the timing for generating ozone will be described.
If ozone is generated during the operation of the cleaner as in the present embodiment, the dust may be in contact with the dust because the dust is flying in the dust collection chamber. Moreover, if ozone is generated during the operation of the vacuum cleaner, ozone may leak from the exhaust, and the user may become uncomfortable with the ozone odor. As in this embodiment, the generation of ozone is performed while the suction power unit 12 is stopped, that is, when the ozone is generated, the operation of the cleaner is stopped, or while the cleaner is operating. By preventing ozone from being generated, ozone can be reliably brought into contact with dust, and leakage of ozone from the exhaust can be prevented.

  Further, if the dust is excessively collected in the dust collecting chamber 31, the ozone effect cannot be given to the entire dust. Therefore, it is desirable to generate ozone every time cleaning is performed or every time the operation of the cleaner is stopped.

  However, if ozone is generated while the suction power unit 12 is stopped, it is conceivable that the user does not notice that ozone is generated, and removes the cyclone dust collecting unit 30 by mistake. Therefore, while ozone is being generated, the fact that ozone is being generated is continuously displayed on the display unit 14 to inform the user that ozone has been generated.

  Further, by providing the cyclone dust collecting unit connection confirmation sensor 13 for detecting the attachment / detachment of the cyclone dust collecting unit 30, it is detected that the cyclone dust collecting unit 30 has been removed, and the control circuit 50 promptly generates the ozone generating unit 22. The operation is stopped.

  Further, when the cyclone dust collecting unit 30 is removed, the ozone generating unit lid body 23 is configured to close the ozone generating port 21 by the restoring force of the spring 23a. For this reason, when the ozone production | generation part 22 continues producing | generating ozone, the ozone inside an ozone generation unit becomes high concentration, accelerates | stimulates deterioration of the structural member of the ozone generation unit 20, and the lifetime of the ozone production | generation part 22 is also short. Become. However, as described above, when the cyclone dust collecting unit 30 is removed, the operation of the ozone generating unit 22 is promptly stopped, so that even if the ozone generating port 21 is closed by the ozone generating unit lid 23. In addition, the ozone inside the ozone generation unit does not become a high concentration, and the deterioration of the constituent members of the ozone generation unit 20 is not promoted.

Embodiment 2. FIG.
FIG. 7 is a detail view of the main part corresponding to FIG. 6 showing a state before the dust collecting part of the electric vacuum cleaner according to Embodiment 2 of the present invention is attached to the main body of the vacuum cleaner. The same functional parts as those of the first embodiment will be denoted by the same reference numerals, description thereof will be omitted, and differences will be mainly described. In the description, reference is made to FIG.

  As shown in FIG. 7, the vacuum cleaner of the present embodiment has a centering function by removing the corner of the joint of the ozone generation unit 20 with the dust collecting chamber 31 and removing the corner. The ozone generating port 21 is provided in the part.

  According to the vacuum cleaner of the present embodiment, the cyclone dust collecting unit 30 can be easily attached and detached without being caught when the cyclone dust collecting unit 30 is attached to the cleaner body 5.

  However, in the case where the ozone generating port 21 is provided in the slope portion as described above, the ozone generating unit lid body 23A has to be installed inside the ozone generating unit 20 as shown in FIG. Accordingly, a space is generated between the ozone generation unit 20 and the ozone generation port 21. For this reason, the member which comprises the ozone generation unit 20 needs to use the raw material with little loss of ozone. As such a material, for example, a metal such as stainless steel having an oxide film, a resin material, or the like can be used.

  1 suction port, 2 extension pipe, 2a operation switch, 2b handle, 3 connection pipe, 4 hose, 5 vacuum cleaner body, 6 power cord, 7 hose connection part, 8 suction air path, 9 connection port, 10 connection air path, DESCRIPTION OF SYMBOLS 11 Filter part, 12 Suction power part, 13 Cyclone dust collection part connection confirmation sensor, 14 Display part, 20 Ozone generation unit, 21 Ozone generation port, 22 Ozone production part, 22a Discharge electrode, 22b Ground electrode, 23, 23A Ozone generation Unit lid, 23a, 37a Spring, 30 Cyclone dust collecting part (dust collecting part), 31 Dust collecting chamber, 32 Swivel part, 33 Dust collecting part cover, 34 Recess, 35 Connecting port, 36 Ozone generating port connecting part, 37 connection part cover body, 50 control circuit, 51 signal processing part, 52 ozone generation part control means, 100 vacuum cleaner.

Claims (4)

A vacuum cleaner body provided with an intake port, a suction power unit, and an exhaust port in order; a dust collection unit detachably disposed between the suction port and the suction power unit of the vacuum cleaner body; and the dust collection unit An electric vacuum cleaner having an ozone generating unit for introducing ozone, wherein a ventilation path is formed from the intake port through the suction power unit to the exhaust port in a state where the dust collecting unit is installed In
The ozone generation unit is disposed on the cleaner body side, and at the time of mounting the dust collection unit to the cleaner body, at least a part of the ozone generation unit is included in the dust collection unit and the dust collection unit An electric vacuum cleaner characterized in that a communication port is opened so that the dust collection unit and the ozone generation unit communicate with each other.   2. The electric vacuum cleaner according to claim 1, wherein when the dust collecting part is attached to the vacuum cleaner main body, the communication ports of the ozone generating unit and the dust collecting part are opened. The vacuum cleaner according to claim 1 or 2 , wherein when the ozone generation unit is turned on, the suction power unit is stopped. The ozone generating unit, to any one of claims 1 to 3, wherein the dust collecting part is arranged so as to be located at the bottom of the dust collecting portion when mounted in the cleaner body The vacuum cleaner described.

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