EP1857032B1

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Info

Publication number: EP1857032B1
Application number: EP20060125823
Authority: EP
Inventors: Moo Hyun Ko; Hae Seock Yang; Man Tae Hwang; Myung Sig Yoo; Jae Kyum Kim; Hoi Kil Jeong; Kie Tak Hyun; Jong Su Choo
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2006-05-17
Filing date: 2006-12-11
Publication date: 2012-05-16
Anticipated expiration: 2026-12-11
Also published as: RU2328961C1; JP4444946B2; JP2007307352A; EP1857032A2; AU2006249291A1; EP1857032A3; AU2006249291B2

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner that can maximize the dust collection volume and easily discharge the collected dusts.

Description of the Related Art

Generally, a vacuum cleaner is a device that can suck air containing dusts using suction generated by a motor mounted in a main body and filter off the dusts in a dust filtering unit.
The vacuum cleaner is classified into a canister type and an upright type. The canister type vacuum cleaner includes a main body and an suction nozzle connected to the main body by a connection pipe. The canister type vacuum cleaner includes a main body and a suction nozzle integrally formed with the main body.
Meanwhile, a dust collection unit mounted in a cyclone type vacuum cleaner separates dusts from air using a cyclone principle and the air whose dusts are removed is discharged out of the main body.
In recent years, in order to improve the dust collection performance, a multi-cyclone dust collection unit having a plurality of cyclone units has been proposed.
That is, the multi-cyclone dust collection unit includes a dust collection body defining an outer appearance, a primary cyclone unit for separating relatively large-sized dusts contained in the air, and a secondary cyclone unit to separate relatively small-sized dusts contained in the air.
The dusts separated by the primary and secondary cyclone units are reserved in respective first and second dust reserving units formed in the dust collection body.
The conventional dust collection unit includes both of the primary and secondary cyclone units.
The dust collection unit is detachably mounted in the main body to discharge the collected dusts.
However, since the conventional dust collection unit includes both of the primary and secondary cyclone units, a space for the main chamber is structurally reduced. Therefore, the dust collection volume of the main chamber is reduced and thus the user must more frequently empty the dust collection unit.
In addition, since the conventional dust collection unit includes both of the primary and secondary cyclone units, the weight of the dust collection unit increases and thus it difficult for the user to handle the vacuum cleaner when mounting the dust collection unit or discharging the collected dusts.
Sixth, the interior room may be contaminated again during the process for separating the dust collection unit from the main body empty the dust collection unit or dumping the dusts out of the dust collection unit. Thus, there is a need to clean the room again.
GB 2404887A discloses three different types of vacuum cleaners in which different arrangements of cyclone units for separating dust from air are provided. In one type two single cyclones are arranged in series, one of which is located inside the other within a dust collecting unit. In other types a single upstream cyclone is followed by a plurality of downstream cyclone arranged in parallel, wherein all cyclones appear to be attached to the dust collecting unit.

SUMMARY OF THE INVENTION

Accordingly, the present invention is directed to a vacuum cleaner that substantially obviates one or more problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a vacuum cleaner that is structurally simple while maximizing the dust collection volume.
Another aspect of the present invention is to provide a vacuum cleaner that can easily discharge the collected dusts.
To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a vacuum cleaner as defined in claim 1. Preferred embodiments are defined in the dependent claims.
The above-described vacuum cleaner has the following advantages.
First, since the primary cyclone unit is provided on the dust collection unit while the secondary cyclone unit is separated from the dust collection unit and provided on the main body unit, the structure of the dust collection unit is simplified and light-weighted. Therefore, the user can more conveniently handle the dust collection unit.
Second, although the secondary cyclone unit is separated from the dust collection unit, the dusts separated from the secondary cyclone unit are still reserved in the dust collection unit. Therefore, only the dust collection unit is separated from the main body unit and emptied.
Third, when the second dust collection unit for reserving the dusts separated by the secondary cyclone unit is provided at an outer side of the first dust reserving unit for reserving the dusts separated by the first cyclone unit, the size of the first dust collection unit increases to maximize the dust collection volume.
Fourth, since the dust collection unit is separated from the main body in a state where it is enclosed, the recontamination if the indoor room by discharging the dusts by opening a cover member at a location where the user wants to discharge the dusts.
Fifth, since the cover member provided on an upper portion of the dust collection unit is designed to simultaneously open and close the first and second dust collection units, the collected dusts can be effectively discharged.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

Fig. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention;
Fig. 2 is a perspective view of the vacuum cleanerFig. 1, when a dust collection unit is separated from the vacuum cleaner;
Fig. 3 is a perspective view of a dust collection unit according to an embodiment of the present invention;
Fig. 4 is a sectional view taken along line I-I' ofFig. 3;
Fig. 5 is a sectional view taken along line II-II' ofFig. 3;
Fig. 6 is a perspective view illustrating a state where a guide cover is separated from the vacuum cleaner; and
Fig. 7 is a sectional view of the vacuum cleaner ofFig. 1.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Fig. 1 is a perspective view of a vacuum cleaner according to an embodiment of the present invention,Fig. 2 is a perspective view of the vacuum cleanerFig. 1, when a dust collection unit is separated from the vacuum cleaner, andFig. 3 is a perspective view of a dust collection unit according to an embodiment of the present invention.
Referring toFigs. 1 through 3, avacuum cleaner 10 includes amain body 100 and a dust separation device for separating the dusts contained in the air sucked into themain body 100.
Thevacuum cleaner 10 further includes a suction nozzle for sucking the air containing the dusts and a connection pipe for connecting the suction nozzle to themain body 100.
Since the structure of the suction nozzle and connection pipe is identical to that of the conventional art, the detailed description thereof will be omitted herein.
A mainbody sucking portion 110 is formed on a frontlower end portion of themain body 100 to allow the air to be sucked from the suction nozzle (not shown) into themain body 100.
A mainbody discharge unit 120 is formed on a side surface of themain body 100 to discharge the air separated from the dusts.
In addition, amain body handle 140 is formed on an upper portion of themain body 100.
Aguide cover 160 is coupled to a rear portion of themain body 100 to guide the air whose dusts are removed by the dust separation device to themain body 100.
Meanwhile, the dust separation device includes adust collection unit 200 for primarily separating the dusts contained in the air and a secondary cyclone unit provided on themain body 100 for secondarily separating the dusts from the air whose dusts is primarily separated by thedust collection unit 200.
Thedust collection unit 200 is detachably mounted on a front portion of themain body 100. As described above, in order to detachably mount thedust collection unit 200 on themain body 100, a mounting/dismounting lever 142 is provided on thehandle 140 of themain body 100 and a hookingend 256 interlocked with the mounting/dismounting lever 142 is formed on thedust collection unit 200.
Thedust collection unit 200 includes a primary cyclone unit for generating the cyclone current and adust collection body 210 having a dust reserving portion in which the dusts separated by the primary cyclone unit.
Here, thedust collection unit 200 is detachably mounted on themain body 100 and communicates with thesecondary cyclone unit 300 and themain body 100 as thedust collection unit 200 is mounted on themain body 100.
Themain body 100 is provided with anair discharge hole 130 for discharging the air sucked into themain body 100 to thedust collection unit 200. Thedust collection unit 200 is provided with a first suckinghole 212 through which the air is sucked from theair discharge hole 130.
At this point, thefirst sucking hole 212 is formed in a tangent direction of thedust collection unit 200 so as to generate the cyclone current in thedust collection unit 200.
Thedust collection unit 200 is provided with afirst discharge hole 252 through which the air whose dusts are separated at the primary cyclone unit is discharged. Themain body 100 is provided with aconnection passage 114 for guiding the air discharged through thefirst discharge hole 252 to thesecondary cyclone unit 300.
Meanwhile, thesecondary cyclone unit 300 includes a plurality of small cyclones that are cone-shaped. The small cyclones are connected in parallel.
Thesecondary cyclone unit 300 is horizontally arranged on a rear-upper portion of themain body 100. That is, thesecondary cyclone unit 300 is arranged at a predetermined angle with respect to themain body 100.
As described above, as thesecondary cyclone unit 300 is horizontally arranged on themain body 100, the space efficiency of the vacuum cleaner considering the arrangement of the vacuum motor.
Since thesecondary cyclone unit 300 is separated from thedust collection unit 200 and provided on themain body 100, the structure of thedust collection unit 200 is simplified and light-weighted. Therefore, the user can easily handle thedust collection unit 200.
Here, the dusts separated by thesecondary cyclone unit 300 are reserved in thedust collection unit 200.
Therefore, thedust collection body 210 is provided with adust sucking hole 254 through which the dusts separated by thesecond cyclone unit 300 is sucked and a dust reserving portion in which the dusts separated by thesecondary cyclone unit 300 are reserved.
That is, the dust reserving portion formed in thedust collection body 210 includes a first dust reserving portion for reserving the dusts separated by the primary cyclone unit and a second dust reserving portion for reserving the dusts separated by thesecondary cyclone unit 300.
That is, in the present embodiment, although thesecondary cyclone unit 300 is separated from thedust collection unit 200 and provided to themain body 100, the dusts separated at thesecondary cyclone unit 300 are reserved in thedust collection unit 200.
Here, thesecondary cyclone unit 300 may be inclined downward toward thedust collection unit 200 so that the separated dusts can be effectively directed to thedust collection unit 200.
The following will describe the operation of the above-describedvacuum cleaner 100.
First, when electric power is applied to thevacuum cleaner 10, suction is generated by the vacuum motor and thus the air containing the dusts is sucked into the suction nozzle by the generated suction. The air introduced into the suction nozzle is directed into thedust collection unit 200 along a passage formed in the main body.
When the air containing the dusts is sucked into thedust collection unit 200, the dusts are primarily separated at the first cyclone unit. The separated dusts are reserved in thedust collection body 210. On the contrary, the air whose dusts are separated is discharged from thedust collection unit 200 and introduced into themain body 100. Then, the air is directed to thesecondary cyclone unit 300 by theconnection passage 114 provided on themain body 100.
The dusts contained in the air introduced into thesecondary cyclone unit 300 are further separated and the separated dusts are introduced and reserved in thedust collection unit 200. Then, the air is finally discharged to an external side through the mainbody discharge portion 120 along a passage formed in themain body 100.
The following will describe thedust collection unit 200 in more detail.
Fig. 4 is a sectional view taken along line I-I' ofFig. 3 andFig. 5 is a sectional view taken along line II-II' ofFig. 3.
Referring toFigs. 4 and5, thedust collection unit 200 includes adust collection body 210 defining an outer appearance, aprimary cyclone unit 230 selectively received in thedust collection body 210 and separating the dusts contained in the air, and acover member 250 for selectively opening and closing an upper portion of thedust collection body 210.
Thedust collection body 210 is formed in a cylindricalshape and defines a dust reserving portion for reserving the separated dusts.
The dust reserving portion includes a firstdust reserving portion 214 for reserving the dusts separated at theprimary cyclone unit 230 and a seconddust reserving portion 216 for reserving the dusts separated at thesecondary cyclone unit 300.
Here, thedust collection body 210 includes afirst wall 211 forming the firstdust reserving portion 214 and asecond wall 212 for forming the seconddust reserving portion 216. That is, thesecond wall 212 is designed to enclose a portion of thesecond wall 211.
Accordingly, the seconddust reserving portion 216 is formed at an outer side of the firstdust reserving portion 214.
As described above, as the second dust reserving portion is formed at an outer side of the firstdust reserving portion 214, the size of the firstdust reserving portion 214 can be maximized to increase the dust collection volume of the firstdust reserving portion 214.
Thefirst wall 211 is provided with acircumferential step 219 for supporting a lower end of thefirst cyclone unit 230 received therein. Therefore, with reference to thecircumferential step 219, the upper portion of the firstdust reserving portion 214 has a diameter greater than that of the lower portion.
A pair ofpressing plates 221 and 222 are provided on thedust collection body 210 to reduce the volume of the dusts reserved in the firstdust reserving unit 214 and thus increase the dust collection amount.
Here, the pair ofpressing plates 221 and 222 acts to each other to compress the dusts to reduce the volume of the dusts. Therefore, the density of the dusts reserved in the firstdust reserving unit 214 increases, the maximum dust collection amount of the firstdust reserving unit 214 increases.
Thepressing plate 222 may be a stationery plate fixed on a fixingshaft 224 formed on a bottom of thedust collection body 210. Thepressing plate 221 may be a rotational plate fixed on a rotational shaft coupled to the fixingshaft 224.
A drivengear 228 is coupled to therotational shaft 226 to rotate by a driving source.
Here, themain body 100 is provided with a driving gear engaged with the drivengear 228 and a driving motor for driving the driving gear.
Therefore, when the driving motor is driven, the driving gear and the drivengear 228 rotate to rotate therotational plate 221 by the rotation of the drivengear 228.
At this point, therotational plate 221 may rotate in both directions so as to compress the dusts at both sides of the fixingplate 222. Accordingly, the driving motor may be a synchronous motor.
In the present embodiment, although one of thepressing plates 221 and 222 is provided to be movable in thedust collection body 210, the present invention is not limited to this embodiment. For example, both of thepressing plates 221 and 222 may be provided to be movable in thedust collection body 210.
Meanwhile, thedust collection body 210 is opened at the upper portion so that the user can discharge the dusts by turning the same over. Thecover member 250 is detachably coupled to the upper portion of thedust collection body 210.
In order to discharge the dusts out of thedust collection body 210, theprimary cyclone unit 230 is separated together with thecover member 250. Therefore, theprimary cyclone unit 230 is coupled to a lower portion of thecover member 250.
In the present embodiment, although theprimary cyclone unit 230 is coupled to thecover member 250, the present invention is not limited to this embodiment. For example, theprimary cyclone unit 230 may be integrally formed with thecover member 250.
Meanwhile, adust guide passage 232 is formed in theprimary cyclone unit 230 to effectively discharge the dusts to the primarydust reserving unit 214.
Here, thedust guide passage 232 allows the air to be sucked in the tangent direction and directed downward.
Therefore, aninlet 233 of thedust guide passage 232 is formed on a side surface of theprimary cyclone unit 230 and anoutlet 234 of thedust guide passage 232 is formed on a bottom of theprimary cyclone unit 230.
Meanwhile, thecover member 250 is detachably coupled to the upper portion of thedust collection body 210. That is, thecover member 250 opens and closes simultaneously the first and seconddust reserving portions 214 and 216.
Therefore, when the user separate thecover member 250 to which theprimary cyclone unit 230 is coupled in order to discharge the dusts reserved in the first and seconddust reserving portions 214 and 216, the upper portion of thedust collection body 210 is opened. Then, the user turns thedust collection body 210 over to discharge the dusts.
At this point, in order to empty thedust collection body 210, the user carries thedust collection body 210 to a trash basket or to an outdoor and empties thedust collection body 210 to prevent the indoor side from being recontaminated.
In addition, thecover member 250 is provided at a bottom with anair discharge hole 251 through which the air whose dusts are separated at theprimary cyclone unit 230 is discharged. An upper portion of afilter member 260 provided with a plurality ofpores 262 is coupled to an outer circumference of theair discharge hole 251.
Accordingly, the air whose dusts are primarily separated at theprimary cyclone unit 230 is discharged through theair discharge hole 251 via thefilter member 260.
In addition, apassage 253 for guiding the air to thefirst discharge hole 252 is formed in thecover member 250. That is, thepassage 253 functions as a passage for connecting thedischarge hole 251 to thefirst discharge hole 252.
In addition, thecover member 250 is provided with adust sucking portion 254 through which the dusts separated at thesecondary cyclone unit 300 is introduced and adust discharge hole 257 through which the air introduced into thecover member 250 is discharged to the seconddust reserving portion 216.
Thedust sucking hole 254 is formed on a top of thecover member 250. As shown inFig. 3, thedust sucking hole 254 is provided by two that are symmetrically disposed at both sides of thefirst discharge hole 252. Thedust discharge hole 257 is formed on a bottom of thecover member 250.
As described above, as thedust sucking hole 254 is formed on the top of thecover member 250 and thedust discharge hole 257 is formed on the bottom of thecover member 250, a space is defined between thedust sucking hole 254 and thedust discharge hole 257.
Therefore, the dusts sucked through thedust sucking hole 254 is preferably designed to allow the dust to be effective moved to thedust discharge hole 257. To realize this, aguide rib 258 is provided to allow the dusts sucked through thedust sucking hole 254 to be effectively moved to the seconddust reserving portion 216 through thedust discharge hole 257.
Thedust guide rib 258 extends from thedust sucking hole 254 to thedust discharge hole 257. Therefore, thedust guide rib 258 has a first side corresponding to thedust sucking hole 254 and a second side corresponding to thedust discharge hole 257.
By thedust guide rib 258, a dust passage along which the dusts separated by thesecondary cyclone unit 300 flow is formed on thecover member 250.
Therefore, the dusts introduced through thedust sucking hole 254 can be effectively directed to thedust discharge hole 257, thereby preventing the dusts introduced into thedust sucking hole 254 from accumulating in thecover member 250.
As described above, according to a feature of the present embodiment, theprimary cyclone unit 230 is provided in thedust collection unit 200 and thesecondary cyclone unit 300 is provided in themain body 100.
However, the cyclone unit may further include a third cyclone unit. In this case, the third cyclone unit is also provided in themain body 100.
Alternatively, the primarily and secondary cyclones units may be provided in thedust collection unit 200 while the third cyclone unit is provided in themain body 100.
That is, according to the present invention, among a plurality of cyclone units, one or more cyclone units are provided in thedust collection unit 200 and the rest are provided in the main body.
Alternatively, the cyclone unit provided in thedust collection unit 200 may be called a dust collection cyclone and the cyclone provided in themain body 100 may be called a main body cyclone. One or more dust collection cyclones and one or more main body cyclone may be provided.
Fig. 6 is a sectional view of the vacuum cleaner.
Referring toFig. 6, thesecondary cyclone unit 300 is provided on the upper portion of themain body 100.
Aconnection passage 114 is provided on the lower portion of thesecondary cyclone unit 300 to guide the air discharge from thedust collection unit 200 to thesecondary cyclone unit 300.
A second suckinghole 302 is formed on thesecondary cyclone unit 300 to allow air passed through the connection passage 144 to be sucked into thesecondary cyclone unit 300.
At this point, in order to direct the air in a tangent direction of thesecondary cyclone unit 300, aguide rib 304 is formed near the second suckinghole 302 in the tangent direction of thesecondary cyclone unit 300.
Meanwhile, themain body 100 is provided with an air sucking hole (118 ofFig. 7) through which the air whose dusts are removed at thesecondary cyclone unit 300 is formed.
Herein, theair sucking hole 118 and thesecondary cyclone unit 300 communicate with each other when theguide cover 160 is mounted in thesecondary cyclone unit 300 andmain body 100.
Therefore, theguide cover 160 shields thesecondary cyclone unit 300 and, at the same time, forms a discharge passage (116 ofFig. 7) through which the air discharged from thesecondary cyclone unit 300 is introduced into theair sucking hole 118.
The following will describe the operation of the above-describedvacuum cleaner 10.
Fig. 7 is a sectional view of the vacuum cleaner.
Referring toFig. 7, when electric power is applied to thevacuum motor 150 of thevacuum cleaner 10, suction is generated by thevacuum motor 150 and thus the air containing the dusts is sucked into the suction nozzle by the generated suction.
The air sucked through the suction nozzle is directed into themain body 100 through the mainbody sucking portion 110 and then directed to thedust collection unit 200 through thecommunication passage 112.
That is, the air containing the dusts is sucked in the tangent direction of theprimary cyclone unit 230 through the first suckinghole 212 of thedust collection body 210. Then, the sucked air rotates downward along the inner circumference of theprimary cyclone unit 230, in the course of which the air and dusts are separated by the centrifugal force.
The air whose dusts are separated passes through thefilter member 260, in which course of which the dusts of the air are further filtered off. Then, the air is discharged out of thedust collection unit 200 through thefirst discharge hole 252 and thedischarge hole 251.
Meanwhile, the separated dusts are introduced into thedust guide passage 232 in the tangent direction while rotating along the inner circumference of theprimary cyclone unit 230.
Then, the dusts introduced into thedust guide passage 232 changes its flow direction in thedust guide passage 232 and move downward through thedischarge hole 234 along an outer circumference of theprimary cyclone unit 230 to be reserved in the firstdust reserving unit 214.
Meanwhile, the air discharged through thefirst discharge hole 252 is introduced into themain body 100. Then, the air is introduced into thesecondary cyclone unit 300 via theconnection passage 114.
Then, the air is guided to the inner wall of thesecondary cyclone unit 300 in the tangent direction of the through the second sucking hole 310 formed on an end of theconnection passage 114 and thus the dusts contained in the air are further separated.
Then, the air is introduced into thedischarge passage 118 formed in themain body 100 and discharged from themain body 100 via themotor pre-filter 152,vacuum motor 150 and mainbody discharge portion 120.
Meanwhile, the separated dusts are introduced into thedust collection unit 200 through thedust sucking hole 254 and reserved in the seconddust reserving unit 216.
In addition, in order to empty thedust collection body 210, the user separates thedust collection unit 200 from themain body 100.
Then, the user separates thecover member 250 to which theprimary cyclone unit 230 is coupled is separated from thedust collection unit 200. Thedust collection body 210 is turned over to discharge the dusts.
a first dust reserving portion 414, a primary cyclone unit 430 selectively received in thedust collection body 210 and separating the dusts contained in the air, and a cover member 450 for selectively opening and closing an upper portion of the dust collection body 410.
Asecondary cyclone unit 300 for further separating the dusts from the air passed through the primary cyclone unit 430 and a dust collection container forming a second dust reserving portion 510 for reserving the dusts separated at thesecondary cyclone unit 300 are reserved are provided in themain body 100.
That is, the dusts separated by the primary andsecondary cyclone units 430 and 300 are reserved in a separated part.
Here, since the primary cyclone unit 430 separates the relatively large-sized dusts while thesecondary cyclone unit 300 separates the fine dusts, most of the dusts are stored in the first dust reserving unit 414. That is, the first dust reserving unit 414 is more quickly filled with the dusts. Therefore, the first dust reserving unit 414 must be more frequently empted.
Therefore, the dust collection body 410 having the first dust reserving portion 414 is separated from the dust collection container 500 having the second dust reserving portion 510. As a result, only the dust collection body 410 can be separated from themain body 100 to discharge the dusts reserved in the first dust reserving portion 414.
In addition, since only the first dust reserving portion 414 is formed in the dust collection body 410, the structure of the dust collection body 410 is simplified and light-weighted. Therefore, the user can easily handle the dust collection body 410.
That is, the dust collection container 500 is provided to be detachably mounted on themain body 100 so that it can be empted easily after being separated from themain body 100.
In addition, the dust collection container 500 is coupled to themain body 100 and then the dust collection unit 400 is coupled to the main body. Therefore, one surface of the dust collection container may be formed to correspond to the shape of the dust collection body 410.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

A vacuum cleaner (10) comprising
a primary cyclone unit (230) and a secondary cyclone unit (300) for separating dust from air,
a dust collecting unit (200) including a dust collection body (210) for storing dust separated from the primary and secondary cyclone units (230,300), and
a main body (100) to which the dust collecting unit (200) is detachably mounted,
wherein the primary cyclone unit (230) is provided in the dust collecting unit (200) and the secondary cyclone unit (300) is provided on the main body (100),
wherein the secondary cyclone unit (300) is connected to the dust collecting unit (200) by mounting the dust collecting unit (200) on the main body (100) and a connection passage (114) is provided in the main body (100) for guiding air discharged from the primary cyclone unit (230) to the secondary cyclone unit (300),
characterised in that the dust collection body (210) defines a first dust reserving portion (214) for storing the dust separated from the primary cyclone unit (230) and a second dust reserving portion (216) for storing the dust separated from the secondary cyclone unit (300), and
wherein a cover member (250) is detachably coupled to an upper portion of the dust collection body (210) for opening/closing the first and second dust reserving portions (214,216).
The vacuum cleaner (10) according to claim 1, wherein the secondary cyclone unit (300) is disposed on the top of the main body (100).
The vacuum cleaner (10) according to claim 1 or 2, wherein the secondary cyclone unit (300) is disposed slant to the main body (100) at a predetermined angle.
The vacuum cleaner (10) according to claim 1, 2 or 3, wherein the secondary cyclone unit (300) declines toward the dust collecting unit (200).
The vacuum cleaner (10) according to any one of claims 1 to 4, wherein the cover member (250) comprises a dust passage (253) for flowing dust discharged from the secondary cyclone unit (300) into the second dust reserving portion (216).
The vacuum cleaner (10) according to any one of claims 1 to 5, wherein the primary cyclone unit (230) is combined with the cover member (250) and separated with the dust collecting unit (200).
The vacuum cleaner (10) according to any one of claims 1 to 6, wherein the vacuum cleaner (10) comprises a guide cover (160) mounted on the main body (100) and forming a passage for flowing air discharged from the secondary cyclone unit (300) into the main body (100).
The vacuum cleaner (10) according to any one of claims 1 to 7, wherein air including dust suctioned from the outside passes through the primary cyclone unit (230), and then passes through the secondary cyclone unit (300).