KR20090111737A - A multi-stage-cyclone dusting collecting apparatus and a cleaner having the same - Google Patents

Abstract

PURPOSE: A multi-stage cyclone dust collecting apparatus and a cleaner equipped with the same are provided to check the flow blockage phenomenon due to dirt and inner flow of a dust collecting unit by making a dust collecting unit of transparent materials. CONSTITUTION: A multi-stage cyclone dust collecting apparatus(200) is composed of a first cyclone dust collecting unit(210) and plural second cyclone dust collecting units(220). The first cyclone dust collecting unit separates the dirt from the inhaled air. The plural second cyclone dust collecting units separate the dirt from the inhaled air flowed in from the first cyclone dust collecting unit. The plural second cyclone dust collecting units arrange in the circumference of the first cyclone dust collecting unit. A part of the first and second cyclone dust collecting units forms the outer form of the multi-stage cyclone dust collecting apparatus.

Description

Multi-stage cyclone dust collector and vacuum cleaner having the same {A MULTI-STAGE-CYCLONE DUSTING COLLECTING APPARATUS AND A CLEANER HAVING THE SAME}

The present invention relates to a dust collector, and more particularly to a multi-stage cyclone dust collector and a cleaner having the same.

In general, a cyclone device means a device that separates a specific substance contained in the fluid by centrifugal force by turning the fluid introduced from the outside. Recently, such cyclone devices have been widely applied to vacuum cleaners. The cyclone device applied to the cleaner is called a cyclone dust collector. That is, when the cleaner inhales the air containing the dirt, the cyclone dust collector separates the dirt from the air.

The dust collection efficiency means the ratio of the amount of dirt introduced into the cyclone dust collector and the amount of dirt separated by the cyclone dust collector. The higher the dust collection efficiency, the better the performance of the cleaner. In a vacuum cleaner using a cyclone dust collector, efforts have been made to increase dust collection efficiency. A representative example is the configuration of a cyclone dust collector with a multistage cyclone dust collector unit. That is, when air is introduced into the cyclone dust collector, dirt is separated in the first stage from the primary cyclone dust collecting unit, and when air discharged from the primary cyclone dust collecting unit flows into the secondary cyclone dust collecting unit, the second stage is removed from the secondary cyclone dust collecting unit. Soil is separated. Larger dirt is separated in the primary cyclone dust collecting unit, and smaller dirt is separated in the secondary cyclone dust collecting unit. Since the multi-stage cyclone dust collector has a plurality of cyclone dust collector units, the size of the cyclone dust collector and the cleaner increases. Accordingly, efforts have been made to miniaturize the multi-stage cyclone dust collector.

If large dirt is sucked in or a plurality of sucked hairs are entangled with each other, a problem may occur in which a flow path inside the multi-stage cyclone dust collector is blocked. If the flow path inside the cyclone dust collector is blocked, dirt on the surface to be cleaned cannot be sucked and the cleaner will not operate properly. In particular, this problem occurs mainly in the primary cyclone dust collecting unit in which large dirt is separated. However, in the conventional cyclone dust collector, the user has no way of checking whether the flow path inside the cyclone dust collector is blocked. In addition, even if the user confirmed the blockage of the flow path, there was no way to remove the dirt blocking the flow path. Efforts have been made to develop a multistage cyclone dust collector that is easy to maintain. However, since the multistage cyclone dust collector has a plurality of cyclone dust collector units, it is difficult to develop a multistage cyclone dust collector at the same time that it is easy to maintain and miniaturize.

The present invention has been made to solve the above problems, it is an object to provide a multi-stage cyclone dust collector and a cleaner having the same can be implemented in a compact shape and easy to maintain.

Multistage cyclone dust collector according to the present invention for achieving the above object, the first cyclone dust collecting unit for separating the dirt from the intake air; And a plurality of second cyclone dust collecting units separating dirt from air introduced from the first cyclone dust collecting unit and disposed around the first cyclone dust collecting unit, wherein a part of the first and second cyclone dust collecting units Characterized in that the appearance of the multi-stage cyclone dust collector.

The plurality of second cyclone dust collecting units may be disposed around a portion of the first cyclone dust collecting unit.

The first cyclone dust collecting unit may be disposed in the transverse direction.

In addition, the plurality of second cyclone dust collecting units may be disposed in parallel with the first cyclone dust collecting unit.

The central axis of the plurality of second cyclone dust collecting units may be located lower than the central axis of the first cyclone dust collecting unit.

In addition, two second cyclone dust collecting units may be disposed symmetrically with respect to the first cyclone dust collecting unit at a first height.

In addition, two other second cyclone dust collecting units may be disposed symmetrically with respect to the first cyclone dust collecting unit at a second height lower than the first height.

The multi-stage cyclone dust collecting device may further include a dust container for storing dirt separated from the first and second cyclone dust collecting units.

Dirt separated from the first and second cyclone dust collecting units may flow into the dust container in the longitudinal direction.

The pivot axis of the swirl airflow formed in the first and second cyclone dust collecting units and the direction in which the dirt flows into the dust container may be perpendicular to each other.

The dust container may be detachably attached to the first and second cyclone dust collecting units.

The dust container may include a first dust accommodating part for storing dirt separated from the first cyclone dust collecting unit; And a second dust accommodating part storing dirt separated from the second cyclone dust collecting unit, wherein the first dust accommodating part and the second dust accommodating part may be separated from each other by a separating wall.

In addition, the bottom of the dust container may be openable.

The first cyclone dust collecting unit may include a grill for separating dirt of a predetermined size or more.

The first cyclone dust collecting unit may include a cover detachably attached to one end of the first cyclone dust collecting unit so that the inside of the first cyclone dust collecting unit may be opened.

A guide member may be formed in the cover to guide the swirling air flow formed in the first cyclone dust collecting unit.

The first and second cyclone dust collecting units may have a cylindrical shape.

The multistage cyclone dust collector may include an inlet through which sucked air and dirt enter the multistage cyclone dust collector; And an outlet through which air from which dirt is separated by the multi-stage cyclone dust collector is discharged.

The inlet may be disposed at the side of the multistage cyclone dust collector, and the outlet may be disposed at the rear of the multistage cyclone dust collector.

In addition, the inlet and the outlet may be arranged on the rear of the multi-stage cyclone dust collector.

The first and second cyclone dust collecting units may be formed of a transparent material that can be seen inside.

According to another aspect of the present invention, a cleaner for achieving the object of the present invention comprises a suction brush for sucking dirt and air on the surface to be cleaned; A multi-stage cyclone dust collector having the characteristics as described above for separating air and dirt sucked from the suction brush; And a cleaner body accommodating the multi-stage cyclone dust collector.

According to the multi-stage cyclone dust collector of the present invention as described above, since the cyclone dust collector unit is formed of a transparent material, it is possible to check a flow clogging phenomenon caused by internal flow and dirt of the cyclone dust collector unit. In particular, since a plurality of second cyclone dust collecting units are disposed around the first cyclone dust collecting unit so that a part of the first cyclone dust collecting unit is exposed to the outside, the cyclone dust collecting device is reduced in size, and at the same time, a flow clogging phenomenon occurs mainly. The internal flow of the first cyclone dust collecting unit can be confirmed. In addition, the cover attached to one end of the first cyclone dust collecting unit can be conveniently cleaned inside the first cyclone.

The above objects and other features of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. For reference, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a perspective view of a cleaner according to an embodiment of the present invention.

Cleaner 100 according to an embodiment of the present invention includes a suction brush 110, a cleaner body 120, a multi-stage cyclone dust collector (200).

The suction brush 110 sucks dirt and air from the surface to be cleaned. The cleaner 100 according to an embodiment of the present invention is an upright type cleaner in which the suction brush 110 is integrally formed on the cleaner body 120. However, the present invention is not limited thereto, and the present invention may be equally applied to a canister type cleaner in which the suction brush 110 is separated from the cleaner body 120.

The cleaner body 120 accommodates the multi-stage cyclone dust collector 200 and a motor not shown to generate suction force. An inflow path (not shown) connected to the suction brush 110 and the multi-stage cyclone dust collector 200 is formed inside the cleaner body 120, and dirt and air introduced from the suction brush 110 are multistage through the inflow path. It is introduced into the cyclone dust collector 200. A handle 121 is formed on the cleaner body 120, and the user grasps the handle 121 to perform a cleaning operation.

2 is a perspective view of a multi-stage cyclone dust collector according to an embodiment of the present invention, Figures 3 and 4 is a cross-sectional view of the multi-stage cyclone dust collector of Figure 2, Figure 5 is a perspective view of a multi-stage cyclone dust collector with a cover removed 6 is a cross-sectional view of the second cyclone dust collecting unit, and FIG. 7 is a perspective view of the dust container.

The multi-stage cyclone dust collector 200 separates air and dirt introduced into the interior by centrifugal force. The multi-stage cyclone dust collector 200 according to an embodiment of the present invention includes a first cyclone dust collector unit 210, a plurality of second cyclone dust collector units 220, and a dust container 230. Since dust is firstly separated from the first cyclone dust collecting unit 210 and dust is secondly separated from the second cyclone dust collecting unit 220, the dust collecting efficiency may be improved. The casing 201 fixes the first and second cyclone dust collecting units 210 and 220.

The first cyclone dust collecting unit 210 primarily separates the dirt from the air introduced from the suction brush 110. As shown in FIG. 2, the first cyclone dust collecting unit 210 according to an embodiment of the present invention is disposed in a lateral direction. That is, the central axis 210a of the first cyclone dust collector 210 is in the transverse direction. The first cyclone dust collecting unit 210 includes a first inlet 211, a first waste outlet 212, a grill 213, a first outlet 214, and a cover 215.

The first inlet 211 is formed at the rear end portion of the first cyclone dust collecting unit 210 with reference to FIG. 2, and is disposed on the side of the multistage cyclone dust collector 200. Air and dirt introduced from the suction brush 110 are introduced into the first cyclone dust collecting unit 210 through the first inlet 211. As shown in Figure 2 and 4, the first inlet 211 is formed so that air and dirt can flow in the tangential direction of the first cyclone dust collecting unit 210. Therefore, the swirling airflow in the direction of the arrow 217 is formed in the first cyclone dust collecting unit 220 as shown in FIGS. 3 and 4. The dirt moving along the swirling air is pushed radially with respect to the central axis 210a of the first cyclone dust collecting unit 210 by centrifugal force.

The first waste outlet 212 is formed at the tip portion of the first cyclone dust collecting unit 210 with reference to FIG. In addition, as shown in FIG. 3, the first waste outlet 212 is formed below the first cyclone dust collecting unit 210. Dirt pushed radially with respect to the central axis 210a of the first cyclone dust collecting unit 210 by the centrifugal force is the first dust container 231 of the dust container 230 through the first waste outlet 212 (FIG. 7). In the direction of arrow 218). That is, the dirt flows into the dust container 230 in the longitudinal direction. Unlike the embodiment of the present invention, when the pivot axis of the swirling air flow formed in the first cyclone dust collecting unit 210 and the direction in which the dirt flows into the dust container 230 are the same, the swirling air flow is also inside the dust container 230. It can remain the same. In this case, a so-called re-scattering phenomenon in which dirt stored in the dust container 230 flows back into the first cyclone dust collecting unit 210 may occur. However, in one embodiment of the present invention, the pivot axis of the swirling air flow formed in the first cyclone dust collecting unit 210 is a transverse direction, and the direction in which the dirt flows into the dust container 230 is perpendicular to each other in two directions in the longitudinal direction. Therefore, since the swirling air that may occur in the dust container 230 is suppressed, it is possible to prevent the re-splashing of the dirt.

The grill 213 separates dirt of a predetermined size or more. The air from which the dirt is separated is discharged to the first outlet 214 via the grill 213 in the direction of the arrow 219. Some dirt not separated by the centrifugal force is filtered in the grill 213, and the dust collecting efficiency is improved.

The first outlet 214 is connected to the second inlet 221 of the plurality of second cyclone dust collecting units 220. As shown in FIG. 4, the air discharged from the first cyclone dust collecting unit 210 is introduced into the plurality of second cyclone dust collecting units 220 through the second inlet 221.

The cover 215 is detachably attached to one end of the first cyclone dust collecting unit 210 so that the inside of the first cyclone dust collecting unit 210 can be opened. As shown in FIG. 5, in one embodiment of the present invention, the cover 215 is attached to the tip portion of the first cyclone dust collecting unit 210. When the user uses the cleaner 100 for a long time, since a large amount of dirt is attached to the grill 213, pressure loss occurs and the dust collecting efficiency of the cleaner 100 is reduced. In this case, the user may easily clean the inside of the first cyclone dust collecting unit 210 and the grill 213 by removing the cover 215. Therefore, maintenance of the multi-stage cyclone dust collector 200 becomes very convenient. In an embodiment of the present invention, the cover is attached only to the first cyclone dust collecting unit 210 but is not limited thereto. The cover may also be attached to the second cyclone dust collecting unit 220.

The guide member 215a is formed in the cover 215 to guide the swirling air flow formed in the first cyclone dust collecting unit 210. As it proceeds from the rear end of the first cyclone dust collecting unit 210 to the tip, the strength of the swirling air flow formed in the first cyclone dust collecting unit 210 is weakened. However, the strength of the swirling air flow weakened by the guide member 215a can be increased.

The plurality of second cyclone dust collecting units 220 secondaryly separates dirt from air introduced from the first cyclone dust collecting unit 210. The large sized dirt is separated from the first cyclone dust collecting unit 210, and the fine sized dirt is separated from the plurality of second cyclone dust collecting units 220.

Large dirts or hairs are entangled with each other, so that flow paths inside the first and second cyclone dust collecting units 210 and 220 may be blocked, and it is necessary to allow the user to check them. To this end, the first and second cyclone dust collecting units 210 and 220 are formed of a transparent material which can be seen inside and are exposed to the outside.

The plurality of second cyclone dust collecting units 220 are disposed around the first cyclone dust collecting unit 210 so that a portion of the first cyclone dust collecting unit 210 is exposed to the outside. In addition, a portion of the second cyclone dust collecting unit 220 is also disposed to be exposed to the outside. That is, a part of the first and second cyclone dust collecting units 210 and 220 forms an appearance of the multistage cyclone dust collector 200. In one embodiment of the present invention, the upper surface of the first cyclone dust collector unit 210 and the side surface of the second cyclone dust collector 220 forms the appearance of the multi-stage cyclone dust collector (200). By arranging the cyclone dust collecting unit, the multi-stage cyclone dust collecting device 200 can be miniaturized, and a flow clogging phenomenon in the cyclone dust collecting unit can be confirmed.

Reference to one embodiment of the present invention as shown in Figures 2 and 4 will be described in more detail. The first and second cyclone dust collecting units 210 and 220 have a cylindrical shape, the first cyclone dust collecting unit 210 is disposed in the horizontal direction, and the two second cyclone dust collecting units 220 are the first cyclone dust collecting unit 210. Are arranged parallel to That is, the central axis 210a of the first cyclone dust collecting unit 210 and the central axis 220a of the second cyclone dust collecting unit 220 are both in the transverse direction. Since the central axis 220a of the second cyclone dust collecting unit 220 is located lower than the central axis 210a of the first cyclone dust collecting unit 210, the upper surface of the first cyclone dust collecting unit 210 may be exposed to the outside. have. Since the two second cyclone dust collecting units 220 are disposed symmetrically with respect to the first cyclone dust collecting unit 210, both two second cyclone dust collecting units 220 may be exposed to the outside. By such a configuration, even if there are a plurality of cyclone dust collecting units 210 and 220, the size of the entire cyclone dust collecting device 200 can be reduced. In addition, the user may check the operation state and the flow path clogging phenomenon of the first cyclone dust collecting unit 210 and the two second cyclone dust collecting units 220. In general, clogging of the flow path mainly occurs in the first cyclone dust collecting unit 210 in which large dirt is separated. In addition, when much dirt is attached to the grill 213, it is necessary to clean the grill 213. In this case, the user may separate the cover 215 to remove dirt blocking the flow path or to clean the grill 213.

In an embodiment of the present invention, the first and second cyclone dust collecting units 210 and 220 may be implemented in various shapes, without being limited to the cylinder shape.

The second cyclone dust collecting unit 220 includes a second inlet 221, a second waste outlet 222, a guide member 223, and a second outlet 224.

The second inlet 221 is formed at the rear end of the second cyclone dust collecting unit 220 with reference to FIG. 2 and is connected to the first outlet 214. Since the large sized dirt is separated from the first cyclone dust collecting unit 210, the fine dust and air are introduced into the two second cyclone dust collecting units 220 through the second inlet 221. As shown in FIG. 4, the second inlet 221 is formed such that air and fine-sized dirt may flow in the tangential direction of the second cyclone dust collecting unit 220. Therefore, as shown in FIGS. 4 and 6, a swirling air flow in the direction of the arrow 227 is formed in the second cyclone dust collecting unit 220. The fine-sized dirt moving along the swirling air flows radially with respect to the central axis 220a of the second cyclone dust collecting unit 220 by centrifugal force.

The second waste outlet 222 is formed at the tip portion of the second cyclone dust collecting unit 210 with reference to FIG. 2. In addition, as shown in FIG. 6, the second waste outlet 212 is formed below the second cyclone dust collecting unit 220. Dirt of a minute size pushed radially with respect to the central axis 220a of the second cyclone dust collecting unit 220 by the centrifugal force is the second dust container 232 of the dust container 230 through the second waste outlet 222. , See FIG. 7) in the direction of arrow 228. That is, fine-sized dirt flows into the dust container 230 in the longitudinal direction. As described above, since the pivot axis of the swirling air stream formed in the second cyclone dust collecting unit 220 and the direction in which the fine size dirt flows into the dust container 230 are orthogonal to each other, re-splashing of the dirt may be prevented.

The guide member 223 guides the swirling airflow formed in the second cyclone dust collecting unit 220.

The second outlet 224 is connected to the discharge path (not shown) formed inside the cleaner body 120, and is disposed on the rear surface of the multi-stage cyclone dust collector 200. The air from which the fine particles are finally separated from the second cyclone dust collecting unit 220 is discharged to the second outlet 224 along the direction of the arrow 229. Thereafter, the air is discharged to the outside of the cleaner body 120 through the discharge path not shown.

The dust container 230 stores dirt separated from the first and second cyclone dust collecting units 210 and 220. As described above, dirt separated from the first and second cyclone dust collecting units 210 and 220 flows into the dust container 230 in the longitudinal direction. The dust container 230 is detachably attached to the first and second cyclone dust collecting units 210 and 220. Therefore, when dirt is filled in the dust container 230, the user can separate the dust container 230 to empty the dirt stored in the dust container 230. The dust container includes a first dust receiver 231 and a second dust receiver 232.

As shown in FIGS. 3, 6, and 7, the first dust receiver 231 stores dirt separated from the first cyclone dust collector unit 210, and the second dust receiver 232 is a second cyclone dust collector unit. The dirt separated at 220 is stored. The first dust receiver 231 and the second dust receiver 232 are separated from each other by the separating wall 233.

Hereinafter, an operation relationship of the multi-stage cyclone dust collector 200 according to an embodiment of the present invention will be described.

An unshown motor mounted on the cleaner main body 120 generates a suction force, and the suction brush 110 sucks dirt and air from the surface to be cleaned. The air containing the dirt flows into the first cyclone dust collecting unit 210 through the first inlet 211. A swirling airflow is formed in the first cyclone dust collecting unit 210, and the guide member 215a guides the swirling airflow. The large dirt is introduced into the dust container 230 through the first waste outlet 212 by centrifugal force. Some dirt not separated by centrifugal force is separated from the grill 213. The air from which some of the dirt is separated is discharged to the first outlet 214 and is introduced into the two second cyclone dust collecting units 220 through the second inlet 221. A swirling airflow is formed in the second cyclone dust collecting unit 220, and the guide member 225 guides the swirling airflow. The fine-sized dirt flows into the dust container 230 through the second waste outlet 222 by centrifugal force. Thus, the air from which dust is separated from the first and second cyclone dust collecting units 210 and 220 is discharged to the second outlet 224.

Since the first and second cyclone dust collecting units 210 and 220 are formed of a transparent material and a portion of the first and second cyclone dust collecting units 210 and 220 is disposed to be exposed to the outside, the user may check the operating states of the first and second cyclone dust collecting units 210 and 220. In particular, the clogging phenomenon occurs mainly in the first cyclone dust collecting unit 210 in which large dirt is separated. In addition, when the cleaner 100 is used for a long time, the grill 213 should be cleaned. In this case, the user may remove the cover 215 to clean the inside of the first cyclone dust collecting unit 210 and the grill 213.

 Another embodiment of the present invention will be described with reference to FIGS. 8 and 9.

8 is a perspective view of a multi-stage cyclone dust collector according to another embodiment of the present invention, and FIG. 9 is a cross-sectional view of the multi-stage cyclone dust collector of FIG. 8.

Components having the same functions and functions as the components described in the above embodiments are given the same reference numerals.

The multi-stage cyclone dust collector 200 ′ according to another embodiment of the present invention includes a first cyclone dust collecting unit 210, four second cyclone dust collecting units 220 and 240, and a dust container 230.

The multi-stage cyclone dust collector 200 ′ according to another embodiment of the present invention is different from the previous embodiment in that it is composed of four second cyclone dust collector units 220 and 240. Two second cyclone dust collecting units 220 are disposed symmetrically with respect to the first cyclone dust collecting unit 210 at the first height. The other two second cyclone dust collecting units 240 are disposed symmetrically with respect to the first cyclone dust collecting unit 210 at a second height lower than the first height. In another embodiment of the present invention, the upper surface of the first cyclone dust collecting unit 210 is exposed to the outside, and the side surfaces of the second cyclone dust collecting units 220 and 240 are exposed to the outside. By this arrangement, the multi-stage cyclone dust collector 200 can be miniaturized, and when the cyclone dust collecting units 210, 220, and 240 are formed of a transparent material, a flow clogging phenomenon in the cyclone dust collecting units 210, 220, and 240 may be checked. Can be.

As shown in FIG. 9, fine dust and air discharged from the first cyclone dust collecting unit 210 are introduced into four second cyclone dust collecting units 220 and 240 through the second inlet 221. Except for the detailed description of the operation relationship of the multi-stage cyclone dust collector 200 'according to another embodiment of the present invention is the same as the operation relationship of the previous embodiment.

Another embodiment of the present invention will be described with reference to FIGS. 10 to 12.

10 and 11 are perspective views of a multi-stage cyclone dust collector according to still another embodiment of the present invention, and FIG. 12 is a side view of the multi-stage cyclone dust collector with the bottom of the dust container open.

Components having the same functions and functions as the components described in the foregoing embodiments will be denoted by the same reference numerals, and duplicated descriptions will be omitted and only different points from the above embodiments will be described.

Multi-stage cyclone dust collector 200 ″ according to another embodiment of the present invention includes a first cyclone dust collector 210, a second cyclone dust collector 220, a dust container 230, the same as the previous temporary examples Perform the function. The difference from the previous embodiments is that the grip portion 202 is formed, the bottom 234 of the dust container 230 can be opened and closed, and the position of the first inlet 211 is different.

The grip 202 is formed on the upper surface of the multistage cyclone dust collector 200 ″. The user may grasp the grip 202 and more easily mount the multi-stage cyclone dust collector 200 ″ to the cleaner 100 or detach it from the cleaner 200.

The bottom 234 of the dust container 230 is rotatable about the hinge shaft 235. As illustrated in FIGS. 11 and 12, the locking member 236 opposite the hinge shaft 235 may fix the dust container 230. When the multi-stage cyclone dust collector 200 ″ is mounted on the cleaner body 120, the locking member 236 fixes the bottom 234 of the dust container 230. When the user uses the cleaner 100 to fill the dust container 230 with dirt, the user grasps the grip part 202 and separates the multi-stage cyclone dust collector 200 ″ from the cleaner body 120. When the bottom 234 of the dust container 230 is released by the locking member 236, dirt stored in the dust container 230 may be emptied. Therefore, the dust bin 230 can be emptied more conveniently than in the previous embodiments.

Air and dirt introduced from the suction brush 110 are introduced into the first cyclone dust collecting unit 210 through the first inlet 211. Unlike the previous embodiments, the first inlet 211 is disposed in the rear of the multi-stage cyclone dust collector 200 ″, as shown in FIG. The second outlet 224 of the second cyclone dust collecting unit 220 is also disposed on the rear surface of the multistage cyclone dust collecting device 200 ″. This configuration simplifies the appearance of the multistage cyclone dust collector 200 ″. In addition, when the multistage cyclone dust collector 200 ″ is mounted on the cleaner body 120, the rear surface of the multistage cyclone dust collector 200 ″ is in surface contact with the cleaner body 120. The sealing effect of the 2 outlets 224 increases.

Since the operation relationship of the multi-stage cyclone dust collector 200 ″ according to another embodiment of the present invention is the same as in the previous embodiments, a detailed description thereof will be omitted.

The present invention has been described in an exemplary manner. The terminology used herein is for the purpose of description and should not be regarded as limiting. Many modifications and variations of the present invention are possible in light of the above teachings. Accordingly, unless otherwise indicated, the invention may be practiced freely within the scope of the claims.

1 is a perspective view of a cleaner according to an embodiment of the present invention,

2 is a perspective view of a multi-stage cyclone dust collector according to an embodiment of the present invention,

3 and 4 are cross-sectional views of the multi-stage cyclone dust collector of FIG.

5 is a perspective view of a multi-stage cyclone dust collector having a cover removed;

6 is a cross-sectional view of the second cyclone dust collecting unit,

7 is a perspective view of a dust container,

8 is a perspective view from behind of the multistage cyclone dust collector according to another embodiment of the present invention;

9 is a cross-sectional view of the multistage cyclone dust collector of FIG. 8.

10 and 11 are a perspective view of a multi-stage cyclone dust collector according to another embodiment of the present invention, and

12 is a side view of the multi-stage cyclone dust collector with the bottom of the dust container open.

<Description of the symbols for the main parts of the drawings>

100; Cleaner 110; Suction brush

120; Cleaner body

200, 200 ', 200' '; Multistage Cyclone Dust Collector

210; A first cyclone dust collecting unit 211; 1st entrance

212; First waste outlet 213; Grill

214; First exit 215; cover

220, 240; A second cyclone dust collecting unit 221; 2nd entrance

222; Second waste outlet 224; 2nd exit

300; Dust bucket

Claims (21)

A first cyclone dust collecting unit for separating dirt from inhaled air; And And a plurality of second cyclone dust collecting units arranged to separate dirt from the air introduced from the first cyclone dust collecting unit and disposed around the first cyclone dust collecting unit. A portion of the first, second cyclone dust collecting unit is a multi-stage cyclone dust collector for forming the appearance of the multi-stage cyclone dust collector. The method of claim 1, And the plurality of second cyclone dust collecting units are disposed around a portion of the first cyclone dust collecting unit. The method of claim 1, The first cyclone dust collecting unit is a multi-stage cyclone dust collector disposed in the transverse direction. The method of claim 3, And the plurality of second cyclone dust collecting units are disposed in parallel with the first cyclone dust collecting unit. The method of claim 4, wherein The central axis of the plurality of second cyclone dust collecting unit is located lower than the central axis of the first cyclone dust collecting unit. The method of claim 5, 2. The multi-stage cyclone dust collecting apparatus, wherein two second cyclone dust collecting units are disposed symmetrically with respect to the first cyclone dust collecting unit at a first height. The method of claim 6, And two other second cyclone dust collecting units are disposed symmetrically with respect to the first cyclone dust collecting unit at a second height lower than the first height. The method of claim 4, wherein And a dust container for storing dirt separated from the first and second cyclone dust collecting units. The dust separated from the first and second cyclone dust collecting units are introduced into the dust container in the longitudinal direction. The method of claim 1, And a dust bin for storing the dirt separated from the first and second cyclone dust collecting units. The method of claim 9, The multistage cyclone dust collector of the first and second cyclone dust collecting unit, the orthogonal to the pivot axis of the swirling air flow in the dust container. The method of claim 9, The dust container is a multi-stage cyclone dust collector is detachably attached to the first, second cyclone dust collecting unit. The dust container of claim 9, wherein A first dust receptacle for storing dirt separated from the first cyclone dust collecting unit; And And a second dust receiver configured to store dirt separated from the second cyclone dust collecting unit. The cyclone dust collecting device, wherein the first dust accommodating portion and the second dust accommodating portion are separated from each other by a separating wall. The method of claim 9, A cyclone dust collector that can open and close the bottom of the dust container. The method of claim 1, wherein the first cyclone dust collecting unit, Multi-stage cyclone dust collector comprising: a grill for separating dirt of a predetermined size or more. The method of claim 1, wherein the first cyclone dust collecting unit, And a cover detachably attached to one end of the first cyclone dust collecting unit so that the inside of the first cyclone dust collecting unit can be opened. The method of claim 15, And a guide member for guiding the swirling air flow formed in the first cyclone dust collecting unit in the cover. The method of claim 1, The first and second cyclone dust collecting units are cylindrical multistage cyclone dust collector. The method of claim 1, An inlet through which suctioned air and dirt enter the multistage cyclone dust collector; And And an outlet through which the air from which dirt is separated by the multi-stage cyclone dust collector is discharged. The inlet is disposed on the side of the multi-stage cyclone dust collector, The outlet is a multi-stage cyclone dust collector disposed on the rear of the multi-stage cyclone dust collector. The method of claim 1, An inlet through which suctioned air and dirt enter the multistage cyclone dust collector; And And an outlet through which the air from which dirt is separated by the multi-stage cyclone dust collector is discharged. The inlet and the outlet is a multi-stage cyclone dust collector disposed in the rear of the multi-stage cyclone dust collector. The method of claim 1, The first and second cyclone dust collecting unit is a multi-stage cyclone dust collector formed of a transparent material that can be seen inside. A suction brush for sucking dirt and air on the surface to be cleaned; The multi-stage cyclone dust collector according to any one of claims 1 to 20, for separating air and dirt sucked from the suction brush; And And a cleaner body accommodating the multi-stage cyclone dust collector.

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