TW201740865A - Vacuum cleaner - Google Patents

Abstract

The present disclosure discloses a vacuum cleaner, including a cleaner body; and a dust collector disposed in the cleaner body, wherein the dust collector includes a first cyclone provided within an outer case to filter foreign matter and dust from air introduced from an outside thereof and introduce the air from which foreign matter and dust have been filtered thereinto; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and a rotating member disposed at a lower side of the first cyclone and configured to be rotatable so as to define a first storage section configured to collect foreign matter and dust filtered by the first cyclone between the rotating member and the outer case, and wherein the rotating member is provided with a roller portion disposed to face a lower cover that covers a lower opening of the outer case, and be brought in contact with foreign matter and dust collected in the first storage section during the rotation of the rotating member to apply a rotational force.

Description

Vacuum cleaner

The present invention relates to a vacuum cleaner configured to separately collect foreign matter, dust, and fine dust through a multi-stage cyclone.

A vacuum cleaner is a device configured to take in air by suction and filter and collect foreign matter, dust, fine dust, and the like contained in the air, and then discharge the clean air to the outside.

The type of vacuum cleaner can be classified into (i) a canister type; (ii) an upright type; (iii) a hand type; (iv) a cylindrical floor type or the like.

The horizontal vacuum cleaner is the most commonly used vacuum cleaner in the home in recent years, and has a structure in which the suction unit and the cleaner body are separated from each other. Usually, the horizontal vacuum cleaner does not have a rotating brush, which is suitable for cleaning the floor because the air is sucked only by the suction unit when cleaning.

In contrast, an upright vacuum cleaner is a vacuum cleaner having a structure in which a suction unit is integrated into a body of a cleaner. Generally, an upright vacuum cleaner can be provided with a rotating brush, and therefore, unlike a horizontal vacuum cleaner, it has the advantage of being able to clean dust in a carpet.

However, conventional vacuum cleaners have the following disadvantages.

First, the structure of a vacuum cleaner as disclosed in Korean Patent Publication No. 10-2003-0081443 (published on Oct. 17, 2003) has a multi-stage cyclone structure, each of which is vertically disposed to cause dust collection. The height of the device is increased. In addition, the dust collector is designed to have a slim profile to solve such a problem of increased volume, thus resulting in a disadvantage of reducing the volume of space in which actual dust is collected.

In order to solve the aforementioned problems, a second cyclone is disposed in a first cyclone separation as disclosed in Korean Patent Publication No. 10-2004-0023417 (published on Mar. 18, 2004). The structure in the apparatus is proposed, but it is difficult to effectively set the second cyclone in the first cyclone due to interference between the guide passages provided in each of the second cyclones. Even if the second cyclone is disposed in the first cyclone, the number of the second cyclones is greatly reduced to reduce the suction force, resulting in a decrease in cleaning performance.

In addition, various flows including high-speed swirling flow due to the suction force of the fan unit are mixed in a dust collector. Such complex flow may hinder the introduction of foreign matter and dust into the first storage area, and may cause dust collected in the first storage area to rise and return in the upstream direction.

This may be a factor in reducing the dust collection performance and cleaning performance of the vacuum cleaner. Therefore, a structure capable of avoiding dust that has been filtered by the first cyclone and introduced into the first storage area, or that is collected by the first storage area can be avoided.

According to the structure disclosed in Korean Patent Publication No. 10-2004-0023417 (published on Mar. 18, 2004), in order to avoid foreign matter stored in the first storage area located below the first cyclone, The dust is scattered, and a skirt can also be placed inside. Since the portion where the side skirt is formed may form a small gap with the outer casing, a phenomenon in which foreign matter is caught in the gap may occur. When the foreign matter is caught in the gap, other foreign matter and dust cannot flow into the first storage area through the gap.

In addition, when the foreign matter and dust collected in the first storage area are piled up, the first cyclone side, especially the bulky foreign matter, is slowly approached, even when it is collected in the first storage area, there is no The shape is gathered, but dispersed in the first storage area, causing the portion where the dust is accumulated to flow back in the upstream direction.

On the other hand, most of the foreign matter or dust that has not passed through the first cyclone is collected and collected in the first storage area, but in some cases, foreign matter or dust may be caught or accumulated and fixed in a screen. The filter, which reduces the area of air passing through the screen filter, thereby increasing the load on the fan unit that provides the suction force and giving the user an impression of being visually unclean.

In order to solve this problem, the dust collector removal and cleaning method should be considered, but it may cause inconvenience to the user. In fact, due to the structure in which the portion of the first cyclone separator is separated from the first storage area, There will be problems with cleaning.

In addition, the vacuum cleaner generally has a structure in which a connecting unit is connected to a suction unit formed in the body of the cleaner, as disclosed in the Korean Patent Publication No. 10-2014-0009551 (published on Jan. 52, 2014). Air drawn by a flow guide extending from the suction unit to the dust collector is introduced into the dust collector. Air suctioned by the suction unit of the fan unit The gas is introduced into the dust collector, and there is a problem that the suction force is lowered when the suction air passes through the flow guide of the cleaner body.

Therefore, it is conceivable to form a suction guide connected to a connecting unit on a structure in which an upper cover of the discharge guide is formed. However, in order to realize such a structure, it should be designed such that the suction guide and the discharge guide do not affect each other (for example, the suction air passing through the suction guide does not leak to the discharge guide), and it is preferable in view of mass production. It has a simple injection molding structure.

In addition, with conventional vacuum cleaners, there is a limit in providing user convenience even during the dust discharge process. Some vacuum cleaners are blown away during the dust discharge process, and some vacuum cleaners require a complicated dust discharge process.

<Prior Art Document>

Patent Document 1: Korean Patent Publication No. 10-2003-0081443 (published on October 17, 2003)

Patent Document 2: Korean Patent Publication No. 10-2004-0023417 (published on March 18, 2004)

Patent Document 3: Korean Patent Publication No. 10-2014-0009551 (published on January 22, 2014)

A first object of the present invention is to provide a dust collector for a vacuum cleaner having a new structure capable of improving the structure of the multi-stage cyclone separator, reducing the height without deteriorating the cleaning performance.

A second object of the present invention is to provide a dust collector capable of guiding foreign matter and dust filtered by a first cyclone to a first storage area disposed under the first cyclone, and restricting foreign matter and dust Reflux.

A third object of the present invention is to provide a dust collector capable of introducing foreign matter trapped in a gap between a side skirt and a casing disposed under a first cyclone separator to be disposed under the side skirt In a first storage area.

A fourth object of the present invention is to provide a dust collector capable of inducing accumulation and compression between foreign matter and dust stored in the first storage area.

A fifth object of the present invention is to provide a dust collector capable of removing foreign matter or dust which is not caught or accumulated in a screen filter by a first cyclone.

A sixth object of the present invention is to provide a dust collector capable of reducing pressure loss and increasing suction efficiency without requiring a separate flow guide for guiding introduction of air from the outside through a suction unit to the dust collector internal.

A seventh object of the present invention is to provide an upper cover for a dust collector which can be manufactured by one shot molding and which has a suction guide and a discharge guide.

An eighth object of the present invention is to provide a dust collector capable of collecting dust and fine dust in a separated manner while discharging collected dust and fine dust.

In order to achieve the first object of the present invention, a dust collector for a vacuum cleaner according to the present invention may include: a first cyclone separator disposed in an outer casing to filter dust from the air taken in from the outside and to enter therein Air that has filtered out dust is introduced; a plurality of second cyclones are disposed in the first cyclone to separate fine dust from the air introduced into the first cyclone; and a cover member Provided to cover an inlet portion of the second cyclone separator, wherein a cyclone disposed adjacent to each other in the first cyclone separator and the second cyclone separator is defined in the first cyclone separator a first space, and the cover member forms a second space communicating with the first space between the inlet portion and the cover member, and a guide vane extending spirally along the inner circumference thereof is disposed therein An inlet portion to generate a swirling flow in the air introduced into the second cyclonic separator via the first space and the second space.

A second object of the present invention can be achieved by providing a guiding unit disposed on a lower side of the first cyclonic separator having a vane spirally along a flow direction of air introduced into the outer casing Extending to induce the flow of foreign matter and dust filtered by the first cyclone.

A third object of the present invention can be achieved by arranging a guiding unit (or a rotating portion) disposed on a lower side of the first cyclonic separator, having a side skirt, at least one It can be rotated in the direction.

A fourth object of the present invention can be achieved by providing a roller portion provided on at least one of the guiding unit (or rotating portion) and a pressing unit configured to rotate therewith, the roller The part is provided with a plurality of ribs facing the cover.

In order to achieve the fifth object of the present invention, the dust collector of the present invention may comprise: a first cyclone separator disposed in an outer casing to filter foreign matter and dust from the air taken in from the outside, and to be filtered therein Air introducing foreign matter and dust; a second cyclone is housed in the first cyclone to separate fine dust from the air introduced into the first cyclone; and a rotating unit, Configuring to be rotatable in at least one direction relative to the first cyclonic separator, wherein the rotating unit is configured to cover the screen filter, a strut extending along a vertical direction of the rotating unit body, a scraper Provided on the inner surface of the pillar facing the screen filter The outer surface is used to scrape dust and foreign matter accumulated on the screen filter when the rotating unit rotates.

A sixth object of the present invention is provided by an intake guide and a discharge guide disposed on an upper cover disposed to cover the first cyclone and the second cyclone, and configured to A structure in which a connection unit in which the suction guide communicates is mounted on an inlet of the suction guide is realized.

A seventh object of the present invention is achieved by a mold in which the suction guide is formed by two molds combined on the inlet side of the suction guide and the bottom side of the upper cover, and the discharge guide is combined at the bottom of the upper cover The structure formed by the side and the two molds on the outlet side of the discharge guide is realized.

In order to achieve the eighth object of the present invention, a lower cover is hinged to the outer casing to form a dust storage area and a bottom surface of the fine dust storage area, and the lower cover is configured to open the dust while the lower cover is rotated by the hinge Storage area and the fine dust storage area.

Meanwhile, the present invention discloses a vacuum cleaner comprising: a vacuum cleaner body; and a dust collector disposed in the cleaner body, wherein the dust collector comprises: a first cyclone separator disposed in a casing to Filtering foreign matter and dust from the air introduced from the outside, and introducing air into which foreign matter and dust have been filtered; a second cyclone is accommodated in the first cyclone to be introduced into the first a fine dust is separated from the air in the cyclone; and a rotating member is disposed on the lower side of the first cyclone and configured to be rotatable to define a first storage area, the first storage area configuration Collecting foreign matter and dust filtered by the first cyclone positioned between the rotating member and the outer casing, and wherein the rotating member is provided with a roller portion disposed to face a lower portion covering the outer casing a lower cover of the opening, and during rotation of the rotating member, the roller portion is in contact with foreign matter and dust collected in the first storage region to apply a rotational force

The roller portion may include a plurality of ribs disposed to be spaced apart from each other along a rotational direction of the rotating member, and sequentially contact with foreign matter and dust collected in the first storage region during rotation of the rotating member.

Each of the plurality of ribs may extend in a radial direction at a predetermined interval.

An extension portion may be formed on a bottom surface of the rotating member facing the lower cover along a rotation direction of the rotating member to extend downward, and the plurality of ribs may be disposed to be spaced apart from each other along an inner circumference of the extending portion open.

The rotating member may be further provided with a side skirt extending downward from the upper portion thereof in an outwardly inclined manner.

A projection or a recess can be formed to surround the side skirt.

The protrusion or the recess may be formed to extend obliquely along the circumference of the side skirt.

The projection or the recess may be provided as a plurality of point projections or grooves spaced at regular intervals.

A driving force transmission unit may be mounted on the lower cover, and the driving force transmission unit is respectively coupled to a driving unit of the cleaner body and the rotating member to transmit a rotational driving force to the rotating member.

The driving force transmission unit may include: a driven gear exposed from a lower portion of the lower cover, and when the dust collector is mounted on the cleaner body, the driven gear is coupled with a driving gear of the driving unit; A fixed gear is coupled to the driven gear located at an upper portion of the lower cover, and the fixed gear is fixed to the rotating member when the lower cover is mounted to cover the lower opening of the outer casing.

The fixed gear may include: a gear portion coupled to a fixing protrusion provided on a lower inner circumference of the rotating member when the lower cover is mounted to cover the lower opening of the outer casing; and a sealing portion Provided below the gear portion to extend in an annular shape along an outer circumference of the fixed gear, and the sealing portion is in close contact with a lower inner circumferential surface of the rotating member.

The vacuum cleaner may further include: an inner casing disposed at a lower portion of the first cyclone to accommodate a discharge port of the second cyclone, and forming a one for collecting fine dust discharged through the discharge port a second storage area, and the inner casing is housed in a receiving portion of the rotating member, wherein a sealing unit is mounted on the fixed gear, and the sealing unit is mounted when the lower cover is mounted to cover the lower opening of the outer casing A lower opening is provided to cover the inner casing to form a bottom surface of the second storage area.

During operation of the vacuum cleaner, the sealing unit can be configured to be lifted to the upper side of the fixed gear due to a pressure differential such that the sealing unit does not rotate.

The vacuum cleaner may further include: an inner casing disposed at a lower portion of the first cyclone to accommodate a discharge port of the second cyclone and forming a one for collecting fine dust discharged through the discharge port a second storage area, the inner casing being received in a receiving portion of the rotating member; and a fixing ring mounted to surround a lower end portion of the inner casing, in a state in which the inner casing is accommodated in the receiving portion, supported A locking projection projecting from the inner circumference of the lower end portion of the rotating member.

The rotating member may be provided with a pressing portion from the rotating member in the radial direction Projecting upwardly and configured to intersect the first storage zone in a radial direction and configured to rotate within the first storage zone in accordance with rotation of the rotating member.

In addition, the present invention discloses a vacuum cleaner comprising: a vacuum cleaner body; and a dust collector disposed in the cleaner body, wherein the dust collector comprises: a first cyclone separator disposed in a casing to Filtering foreign matter and dust from the air introduced from the outside, and introducing air into which foreign matter and dust have been filtered; a second cyclone is accommodated in the first cyclone to be introduced into the first a fine dust is separated from the air in the cyclone; and a rotating member is disposed on the lower side of the first cyclone and configured to be rotatable to define a first storage area, the first storage area configuration Collecting foreign matter and dust filtered by the first cyclone positioned between the rotating member and the outer casing, and wherein the rotating member is provided with a plurality of ribs disposed to face the outer casing a lower opening of the lower opening, and during rotation of the rotating member, the plurality of ribs are disposed to be spaced apart from each other along a rotational direction of the rotating member.

Each of the plurality of ribs may extend in a radial direction at a predetermined interval.

An extension portion may be formed on a bottom surface of the rotating member facing the lower cover along a rotation direction of the rotating member to extend downward, and the plurality of ribs may be disposed to be spaced apart from each other along an inner circumference of the extending portion open.

The rotating member may be further provided with a side skirt extending downward from the upper portion thereof in an outwardly inclined manner.

A projection or a recess can be formed to surround the side skirt.

The effects of the present invention obtained by the aforementioned technical solutions are as follows.

First, the second cyclonic separator can be completely contained within the first cyclonic separator to reduce the height of the dust collector. In this configuration, a guide vane may be disposed at the inlet portion of the second cyclonic separator to cause a swirling flow of air introduced into the second cyclonic separator, and thus, a separate guide passage may not be required. One side of the second cyclone extends. Therefore, more second cyclones can be configured in the first cyclonic separator. Therefore, even if the second cyclone is housed in the first cyclone, the number of the second cyclones is not reduced as compared with the prior art, so that the cleaning performance can be prevented from being lowered.

Second, the foreign matter and dust filtered by the first cyclone may be guided by the blades of the guiding unit disposed under the first cyclone and into the first storage area below the guiding unit. Here, the vanes may be spirally formed along a flow direction in which air flows into the outer casing, and the vanes are At least a portion of any of the blades may be disposed to overlap the other blade in a vertical direction to limit backflow of foreign matter and dust.

Third, a guiding unit (or a rotating unit) having a side skirt disposed on a lower side of the first cyclonic separator may be configured to be rotatable in at least one direction, thereby even if foreign matter is between the side skirt and the outer casing The gap is captured, and the foreign matter can be released by the rotation of the rotating unit. The foreign matter released from the gap can be introduced into the first storage area below the side skirt by the swirling flow generated by the driving of the vacuum cleaner.

Fourth, at least one of the guiding unit (or the rotating unit) and the pressing unit configured to rotate therewith may have a roller portion configured with a plurality of ribs facing the lower cover to generate foreign matter Aggregation with dust. When the roller portion is disposed on each of the guiding unit and the pressing unit, and each roller portion is disposed at a different height with respect to the lower cover, the roller portion corresponding to the cumulative height of foreign matter and dust can be used to generate foreign matter and dust The gathering between the two. Further, the roller portion can be combined with the driving of the pressurizing unit to perform compression and accumulation between the foreign matter and the dust.

Fifth, when the rotary unit rotates relative to the first cyclone, the scraper disposed on the post of the rotary unit can be configured to move along the outer circumference of the first cyclone to interact with the screen filter contact. Therefore, when the vacuum cleaner is driven, dust and foreign matter caught and accumulated on the screen filter can be continuously removed. Therefore, the performance and maintenance convenience of the vacuum cleaner can be improved.

Sixth, the upper cover disposed to cover the first cyclone separator and the second cyclonic separator may have a suction guide and a discharge guide, and a connection unit may be directly connected to the inlet of the suction guide. Accordingly, there is no need for a flow guide disposed in the body of the cleaner in the side inflow structure of the prior art as compared to the side inflow structure to simplify the suction passage and increase the area of the inlet portion. Therefore, the pressure loss can be reduced to provide suction efficiency.

Seventh, when a suction guide is formed to have a single passage, and a discharge guide is provided with a vacant space of the suction guide, an upper cover having suction efficiency can be provided. Further, there is an advantage that the upper cover can be injection-molded by three molds combined and separated in three directions of the inlet side of the suction guide, the outlet side of the discharge guide, and the bottom side of the upper cover by three molds.

Eighth, when the lower cover is separated from the first storage area and the second storage area, the first storage area and the second storage area may be configured to be open, so that dust collected in the first storage area may be discharged at the same time and collected Fine dust in the second storage area.

1‧‧‧Vacuum cleaner

10‧‧‧ vacuum cleaner body

20‧‧‧sucking unit

30‧‧‧ Connection unit

40‧‧‧ wheel unit

50‧‧‧ drive unit

51‧‧‧Drive motor

52‧‧‧ drive gear

100‧‧‧dust collector

101‧‧‧ Shell

101a‧‧‧Reflow restriction ribs

101b‧‧‧ inner wall

110‧‧‧First cyclone separator

111‧‧‧Front frame

111a‧‧‧Support

111b‧‧‧ bottom

112‧‧‧Screen filter

120‧‧‧Second cyclone separator

120a‧‧ Entrance Department

120b‧‧‧Export

121‧‧‧Shell

122‧‧‧Vortex seek tube

122a‧‧‧Friction

123‧‧‧Guiding blades

130‧‧‧Cover components

130a‧‧‧Connected holes

140‧‧‧Upper cover

140a‧‧‧Inhalation guide

140a’‧‧ Entrance

140a”‧‧‧Export

140b‧‧‧Draining guide

140b’‧‧ Entrance

140b”‧‧‧Export

150‧‧‧ inner shell

160‧‧‧Under the cover

161‧‧‧ Hinges

162‧‧‧Locking members

163‧‧‧Driving force transfer unit

163a‧‧‧ driven gear

163b‧‧‧Fixed components

164‧‧‧ Sealing unit

170‧‧‧ Pressurizing unit

171‧‧‧Rotating Department

171a‧‧‧Roller

171b‧‧‧fixed groove

172‧‧‧ Pressurization

172a‧‧‧Ventinel

180‧‧‧Guide unit

181‧‧‧Base

182‧‧‧ leaves

200‧‧‧dust collector

201‧‧‧ Shell

210‧‧‧First cyclone separator

212‧‧‧Screen filter

270‧‧‧ Pressurizing unit

271‧‧‧Rotating Department

280‧‧‧Guide unit

281‧‧‧Base

282‧‧‧ leaves

283‧‧‧Side skirt

300‧‧‧dust collector

310‧‧‧First cyclone separator

312‧‧‧ Screen filter

370‧‧‧ Pressurizing unit

371‧‧‧Rotating Department

380‧‧‧Rotating unit

381‧‧‧ Lower frame

382‧‧‧ blades

383‧‧‧ pillar

384‧‧‧ scraper

385‧‧‧上上

400‧‧‧dust collector

410‧‧‧First cyclone separator

412‧‧‧Screen filter

463‧‧‧Driving force transfer unit

470‧‧‧ Pressurizing unit

471‧‧‧Rotating Department

471a‧‧‧second roller section

480‧‧‧Rotating unit

481‧‧‧ Lower frame

481a‧‧‧First Roller

483‧‧‧ pillar

484‧‧‧ scraper

485‧‧‧上上

486‧‧‧Side skirt

540‧‧‧上盖

540a‧‧‧Inhalation guide

540a’‧‧‧ entrance

540a1‧‧‧First branch channel

540a1”‧‧‧Export

540a2‧‧‧Second branch channel

540a2”‧‧‧Export

540a3‧‧‧ branch wall

540b‧‧‧Draining guide

540b’‧‧‧ entrance

540b”‧‧‧Export

601‧‧‧ Shell

601b‧‧‧ inner wall

610‧‧‧First cyclone separator

611‧‧‧Front frame

612‧‧‧Screen filter

620‧‧‧Second cyclone separator

620b‧‧‧Export

650‧‧‧ inner shell

651‧‧‧ partition wall

651a‧‧‧through hole

652‧‧‧fixed prominent

653‧‧ ‧block

660‧‧‧Under the cover

660a‧‧ hole

660b‧‧‧round rib

660c‧‧‧round rib

660d‧‧‧filler

663‧‧‧Driving force transfer unit

663a‧‧‧ driven gear

663a’‧‧‧ raised parts

663b‧‧‧fixed gear

663b’‧‧‧ Gear Department

663b"‧‧‧ Sealing Department

663c‧‧‧ bearing

664‧‧‧ Sealing unit

670‧‧‧Rotating components

670a‧‧‧ accommodating department

670b‧‧‧ gap

671‧‧‧Extension

672‧‧‧Side skirt

673‧‧‧Protruding

674‧‧‧Rolling Department

675‧‧‧Locked prominently

676‧‧‧Fixed protrusions

677‧‧‧ Pressurization

680‧‧‧Fixed ring

681‧‧‧Lock hole

682‧‧‧cut section

770‧‧‧Rotating components

770a‧‧ ‧ accommodating department

770b‧‧‧ gap

771‧‧‧Extension

772‧‧‧Side skirt

773‧‧‧ highlights

774‧‧‧Rolling Department

777‧‧‧ Pressurization

870‧‧‧Rotating components

870a‧‧‧ accommodating department

870b‧‧‧ gap

872‧‧‧Side skirt

872a‧‧‧First side skirt

872b‧‧‧Second side skirt

872c‧‧‧Connecting Department

872a’‧‧‧ bottom

872b’‧‧‧ bottom

872c’‧‧‧ bottom

877‧‧‧ Pressurization

D‧‧‧ Foreign objects and dust

D1‧‧‧First storage area

D2‧‧‧Second storage area

M1‧‧‧ entrance side

M2‧‧‧ exit side

M3‧‧‧ bottom side

M13‧‧‧ area

M23‧‧‧ area

R1‧‧‧Rotation direction

R2‧‧‧Rotation direction

S1‧‧‧ first space

S2‧‧‧Second space

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. In the drawings: Fig. 1 is a perspective view showing an example of a vacuum cleaner according to the present invention; Fig. 2 is a perspective view showing an example of a dust collector shown in Fig. 1; Fig. 3 is a dust along the line shown in Fig. 2. A cross-sectional view of the section line AA of the collector; FIG. 4 is a front view of the dust collector shown in FIG. 2; and FIG. 5 is a view from the bottom side of the dust collector shown in FIG. 2, showing the outer casing being Figure 6 is a cross-sectional view of the dust collector shown in Figure 4; Figure 7 is a view showing a change in shape of foreign matter and dust collected in the first storage area according to whether or not there is a roller portion; 8 is a schematic view showing a modification example of the guiding unit; FIG. 9 is a cross-sectional view of the dust collector shown in FIG. 8; and FIG. 10 is a perspective view showing another example of the dust collector shown in FIG. 1; An enlarged view of the inner side of the "B" portion shown in Fig. 10; Fig. 12 is a cross-sectional view showing a portion "B" shown in Fig. 10; and Fig. 13 is a view showing the rotary unit shown in Fig. 10. Schematic diagram of a modified example; Figure 14 is from the bottom side of the dust collector shown in Figure 13. Figure 15 is a schematic view showing the driving force of the driving unit transmitted to the rotating unit by the driving force transmitting unit; Figure 16 is a cross-sectional view of the dust collector shown in Figure 15; Figure 17 is a view showing the upper cover from the figure 2 is a view showing the separation of the dust collector; FIG. 18 is a view of the inlet side of the upper cover shown in FIG. 17; FIG. 19 is a view of the outlet side of the upper cover shown in FIG. 17; Figure 17 is a view showing the bottom side of the upper cover; Figure 21 is a schematic view showing the flow of the airflow in the upper cover shown in Figure 17; Figure 22 is a schematic view showing a modified example of the upper cover shown in Figure 17; View a view of the inlet side of the upper cover as shown in FIG. 22; Figure 24 is a view showing the outlet side of the upper cover shown in Figure 22; Figure 25 is a view looking at the bottom side of the upper cover shown in Figure 22; Figure 26 is a view showing the flow of air in the upper cover shown in Figure 22. Figure 27 is a schematic view showing a dust collector of another embodiment shown in Figure 1; Figure 28 is a schematic view showing the inner casing, the rotating member, and the lower cover as shown in Figure 27; The bottom side is a schematic view of the rotating member shown in Fig. 28; Fig. 30 is a side view showing the rotating member shown in Fig. 29; Fig. 31 is a plan view showing the rotating member shown in Fig. 29; Fig. 28 is a schematic view showing the structure of the fixing ring coupled to the inner casing; Fig. 33 is an exploded perspective view showing the lower cover shown in Fig. 28; and Fig. 34 is a view showing the structure shown in Fig. 32, the lower cover is closed. FIG. 35 and FIG. 36 are schematic views of the rotating member of the first modified embodiment shown in FIG. 28 viewed from different directions; FIG. 37 is a plan view showing the rotating member shown in FIG. 35; A bottom view of the rotating member shown in Fig. 35 is shown; Fig. 39 and Fig. 40 are from A schematic view of the rotating member of the second modified embodiment shown in FIG. 28 is seen in different directions; FIG. 41 is a plan view showing the rotating member shown in FIG. 39; and FIG. 42 is a view showing the rotating member shown in FIG. Bottom view.

Hereinafter, a vacuum cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

The same or similar elements will be given the same or similar reference numerals, and the repeated description will be omitted, even in the different embodiments and modifications.

The modification has the same structure as the embodiment except that a part of the structure is different, and therefore, the structure, function, and the like described in the embodiment can be applied to the modification unless the structures conflict.

A singular expression may include a plural expression as long as it is clearly apparent from the context.

Fig. 1 is a perspective view showing an example of a vacuum cleaner 1 according to the present invention.

Referring to FIG. 1, the vacuum cleaner 1 may include: a cleaner body 10, a suction unit 20. A connection unit 30, a wheel unit 40, and a dust collector 100.

The cleaner body 10 has a fan unit (not shown) for generating a suction force. The fan unit includes a suction motor and a suction fan that is rotated by the suction motor to generate a suction force.

The suction unit 20 is configured to suck air adjacent to the suction unit 20, and the air sucked by the suction unit 20 may contain foreign matter, dust, fine dust, ultra-fine dust, and the like.

The connection unit 30 is connected to the suction unit 20 and the dust collector 100, respectively, to pump air containing foreign matter, dust, fine dust, ultra-fine dust, and the like to the dust collector 100 via the suction unit 20. The connection unit 30 can be configured in the form of a hose or conduit.

The wheel unit 40 is rotatably coupled to the cleaner body 10 by rotation to move or rotate the cleaner body 10 in various directions.

For example, the wheel unit 40 may include a main wheel and an auxiliary wheel, the main wheels being respectively disposed on both sides of the cleaner body 10, the auxiliary wheel being configured to support the cleaner body 10 together with the main wheel, and the main wheel assisting the cleaner body 10 to move.

In the present invention, the suction unit 20, the connecting unit 30, and the wheel unit 40 can be applied to a conventional vacuum cleaner. Therefore, a detailed description will be omitted.

The dust collector 100 is detachably coupled to the cleaner body 10, the dust collector 100 being configured to separate foreign matter, dust, fine dust from the sucked air; collecting separated foreign matter, dust, fine dust; and discharging filtered air.

Generally, a conventional vacuum cleaner has a structure in which a connecting unit is coupled to a suction unit formed in a body of the cleaner, and the sucked air is introduced to a flow guide extending from the suction unit to the dust collector. In the dust collector. The air sucked by the suction force of the fan unit is introduced into the dust collector, and there is a problem that the suction force is lowered when the sucked air passes through the flow guide of the cleaner body.

Conversely, the vacuum cleaner 1 of the present invention is directly coupled to the dust collector 100 as shown. According to this connection structure, the air sucked through the suction unit 20 is directly introduced into the dust collector 100, and therefore, the suction force can be increased as compared with the prior art. Furthermore, it has the advantage that there is no need to form a flow guide within the cleaner body 10. The details will be described below.

For reference, the dust collector 100 applied to the horizontal vacuum cleaner 1 is illustrated in the drawing, however, the dust collector 100 of the present invention is not limited to the horizontal vacuum cleaner 1. The dust collector 100 of the present invention can be applied to various vacuum cleaners such as an upright vacuum cleaner and a cleaning robot.

Hereinafter, various embodiments of the dust collector 100 having a novel structure will describe the overall configuration of the dust collector 100 and the flow in the dust collector 100.

2 is a perspective view illustrating an example of the dust collector 100 shown in FIG. 1; and FIG. 3 is a cross-sectional view along a section line A-A of the dust collector shown in FIG. 2.

Referring to FIGS. 2 and 3, the outside air sucked by the suction force generated by the fan unit of the vacuum cleaner 1 is introduced into the dust collector 100 via an inlet 100a of the dust collector 100, and introduced to the dust collector 100. The air in the air is sequentially filtered by a first cyclone separator 110 and a second cyclone separator 120, and is discharged to the outside of the dust collector 100 via an outlet 100b. Foreign matter, dust, fine dust separated from the air by the first cyclone separator 110 and the second cyclone separator 120 are collected in the dust collector 100.

The cyclone separator is a device configured to provide a vortex flow to the dust particle suspension, and the dust particles are separated from the fluid by centrifugal force, the cyclone separator being introduced into the cleaner body 10 by suction force. The air, dust, and fine dust are separated in the air. In this specification, relatively large dust is called "dust", relatively small dust is called "fine dust", and dust smaller than "fine dust" is called "dust". Ultra-fine dust (unltrfine dust).

The dust collector 100 includes a casing 101, a first cyclone separator 110, and a second cyclone separator 120.

The outer casing 101 is configured to accommodate the first cyclonic separator 110 and a second cyclonic separator 120 and form a side surface of the dust collector 100. The outer casing 101 is preferably formed in a cylindrical shape as shown, but the present invention is not limited thereto.

An upper cover 140 is mounted on the outer casing 101 to cover the first cyclonic separator 110 and the second cyclonic separator 120. The upper cover 140 is formed with a suction guide 140a and a discharge guide 140b of the dust collector 100, respectively. The suction guide 140a may be formed to extend toward the inner circumference of the outer casing 101 such that the sucked air is introduced into the outer casing 101 tangentially and flows along the inner circumference of the outer casing 101.

The first cyclonic separator 110 is mounted within the outer casing 101, and the first cyclonic separator 110 may be disposed at an upper portion within the outer casing 101, the first cyclonic separator 110 being configured to filter foreign matter and dust from the introduced air, and will have been filtered The introduction of foreign matter and dust into the air.

The first cyclonic separator 110 can include a housing 111 and a screen filter 112.

The outer frame 111 forms an appearance of the first cyclonic separator 110, and the outer frame 111 can be formed as Similar to the cylindrical shape of the outer casing 101. The outer frame 111 may be formed with a support portion 111a for coupling with the outer casing 101 to protrude in the radial direction. As an example, the support portion 111a may be formed to protrude along the outer circumference at an upper portion of the outer frame 111, and the support portion 111a may be coupled with an upper portion of the outer casing 101.

The outer frame 111 is formed in an empty shape to accommodate the second cyclone 120. The outer circumference of the outer frame 111 is formed with a plurality of openings communicating with the inner side thereof, and the openings may be formed along the outer frame 111. The multiple positions of the outer circumference.

A mesh filter 112 is disposed in the outer frame 111 to cover the openings, and the mesh filter 112 has a mesh or a porous shape to allow air to pass therethrough. The mesh filter 112 is formed to separate foreign matter and dust from the air introduced into the outer frame 111.

The size standard for distinguishing between dust and fine dust can be determined by the screen filter 112, and the small dust passing through the screen filter 112 can be classified as "fine dust" and cannot pass through the screen filter 112. Large dust can be classified as "dust".

The process of separating foreign matter and dust by the first cyclone separator 110 is carefully considered, and air containing foreign matter, dust, and fine dust is introduced to the outer casing 101 and the first cyclone via an outlet 140a" (refer to FIG. 20) of the suction guide 140a. Within the annular space between the separators 110, a swirling motion is performed in the annular space.

During this process, relatively heavy foreign matter and dust gradually flow downward while being vortexed in a circular space between the outer casing 101 and the first cyclonic separator 110 due to centrifugal force, and are collected in The first storage area D1 will be described later.

On the other hand, unlike foreign matter and dust, air is introduced into the outer frame 111 by suction force through the mesh filter 112, and at this time, fine dust which is relatively lighter than dust is introduced with the air. In block 111.

Referring to FIG. 3, the internal structure of the dust collector 100 and the air flow in the dust collector 100 can be observed.

The second cyclonic separator 120 is disposed within the first cyclonic separator 110 to separate fine dust from the air introduced through the inlet portion 120a, as shown, a plurality of second cyclonic separators 120 may be disposed therein The central axis of the second cyclonic separator 120 may be arranged to be parallel to the central axis of the first cyclonic separator 110.

Unlike the vertical arrangement in which the second cyclone separator is disposed above the first cyclone separator, the second cyclone separator 120 of the present invention can be housed in the first cyclone separator. 110 to reduce the height of the dust collector 100. The second cyclonic separator 120 is not formed to protrude above the first cyclonic separator 110.

Further, in the prior art, the second cyclone has a guide passage extending from one side thereof so that air is introduced tangentially to the fine dust and flows along the inner circumference of the second cyclone, but the present invention The second cyclone separator 120 does not have such a guide passage, and therefore, the second cyclone separator 120 has an annular shape as viewed from above.

Referring to FIG. 3, the cyclone disposed adjacent to each other in the first cyclone separator 110 and the second cyclone separator 120 defines a first space S1, in other words, the first cyclone separator 120 is disposed at the first cyclone separation. In the area inside the device 110, the unused space outside the second cyclone separator 120 can be interpreted as the first space S1, the first space S1 forms a passage, and the air and dust introduced into the first cyclone separator 110 can be This passage is introduced into the upper portion of the second cyclone separator 120.

Each of the second cyclones 120 may be disposed along a vertical direction, and the plurality of second cyclones 120 may be disposed in parallel with each other, according to which the first space S1 may be formed to be within the first cyclone 110 Extends in the vertical direction.

In the second cyclone separator 120, the cyclones disposed adjacent to each other may be disposed to be in contact with each other. In particular, a conical housing 121 forming the appearance of any one of the second cyclones 120 is disposed in contact with a housing 121 of the adjacent second cyclonic separator 120 to form a first portion surrounded by the housing 121 Space S1.

The housing 121 of any one of the second cyclones 120 may be integrally formed with the housing 121 of the adjacent second cyclone 120. According to the foregoing structure, the plurality of second cyclones 120 can be modularized and disposed within the first cyclonic separator 110.

Further, the second cyclone separator 120 disposed along the inner circumference of the first cyclonic separator 110 may be disposed in contact with the inner circumferential surface of the first cyclonic separator 110. In particular, the inner circumferential surface of the outer frame 111 and the outer circumferential surface corresponding to the cylindrical portion of the housing 121 may be disposed to be in contact with each other.

According to this configuration, the second cyclone separator 120 can be effectively disposed within the first cyclone separator 110. In particular, the second cyclone separator 120 of the present invention is not provided with a guide passage extending from one side thereof as in the conventional second cyclone separator, and therefore, a plurality of second cyclones 120 may be disposed in the first cyclone separator. Within 110. Therefore, even if the second cyclone separator 120 has a structure for accommodating it in the first cyclone separator 110, the number of the second cyclone separators 120 is not reduced as compared with the prior art, so that the cleaning performance can be prevented from being lowered. .

A cover member 130 is disposed at an upper portion of the second cyclone separator 120, and the cover member 130 is disposed to cover the inlet portion 120a of the second cyclone separator 120 disposed at a predetermined interval to be at the cover member 130 and the inlet portion A second space S2 communicating with the first space S1 is formed between 120a. The second space S2 extends in the horizontal direction of the second cyclonic separator 120 and is configured to communicate with the inlet portion 120a of the second cyclonic separator 120.

According to this communication relationship, the air introduced into the first cyclone separator 110 is introduced into the inlet portion 120a of the upper portion of the second cyclone separator 120 through the first space S1 and the second space S2.

A vortex finder 122 for discharging air from which fine dust has been separated is disposed at the center of the upper portion of the second cyclone 120. Due to this superstructure, the inlet portion 120a may be defined as a second cyclone separator. An annular space between the inner circumference of 120 and the outer circumference of the vortex finder tube 122.

The inlet portion 120a of the second cyclone separator 120 is provided with a guide vane 123 extending spirally along the inner circumference thereof, and the guide vane 123 may be disposed on the outer circumference of the vortex finder tube 122 or integrally formed with the vortex finder tube 122. . The guide vanes 123 generate a swirling flow in the air flowing into the second cyclone 120 via the inlet portion 120a.

Carefully consider the flow of air and fine dust flowing into the inlet portion 120a, the fine dust gradually flows downward while flowing spirally along the inner circumference of the second cyclone separator 120, and finally discharged through the discharge port 120b, and is collected. In the second storage area D2. In addition, air relatively lighter than fine dust is discharged to the vortex finder pipe 122 at the upper portion thereof by the suction force of the fan unit.

According to the above configuration, unlike the prior art, in the prior art, the high-speed rotational flow generated by the guide passage extending from one side of the second cyclone is shifted to an area, and in the present invention A relatively uniform swirling flow is generated almost throughout the entire area of the inlet portion 120a. Therefore, compared with the structure of the second cyclone separator of the prior art, local high-speed flow does not occur, thereby reducing flow loss.

A plurality of guide vanes 123 may be disposed therein and spaced apart from each other at a fixed interval along the outer circumference of the vortex finder tube 122, and each of the guide vanes 123 may be configured to start from the same position of the upper portion of the vortex finder tube 122, and The same position extends to the lower portion of the vortex finder tube 122.

For example, the four guide vanes 123 may be disposed at an outer circumference along the vortex finder tube 122 at intervals of 90°. Of course, a larger or smaller number of guide vanes can be provided depending on the design. 123. At least a portion of any one of the guide vanes 123 may overlap with the other guide vane 123 in the vertical direction of the vortex finder tube 122.

Additionally, the guide vanes 123 may be disposed within the first cyclonic separator 110, and according to this configuration, the flow within the second cyclonic separator 120 may occur within the first cyclonic separator 110. As a result, noise may be reduced due to such flow within the second cyclonic separator 120.

At the same time, the lower diameter of the vortex finder tube 122 may be formed to be smaller than the upper diameter thereof. According to this configuration, the area of the inlet portion 120a can be reduced to increase the inflow velocity into the second cyclone separator 120, thereby preventing the fine dust introduced into the second cyclone separator 120 from being discharged through the vortex finder tube 122 with the air.

Fig. 3 is a view illustrating that a tapered portion 122a is formed at a lower portion of the vortex finder tube 122 with a diameter gradually decreasing toward a lower portion thereof. Conversely, the vortex finder tube 122 can be formed in a manner that gradually decreases in diameter from its upper portion to its lower portion.

On the other hand, a communication hole 130a corresponding to the vortex finder tube 122 is formed on the cover member 130, and the cover member 130 may be disposed to cover the internal space of the first cyclone separator 110 other than the vortex finder tube 122, even if not shown In the drawings, the cover member 130 may be provided with a projection that is inserted into the vortex finder tube 122 and has a communication hole 130a formed therein.

An upper cover 140 is disposed on the cover member 130, and the upper cover 140 may form an upper appearance of the dust collector 100.

The upper cover 140 includes a suction guide 140a for introducing air taken in from the outside into the dust collector 100, and a discharge guide 140b for discharging air discharged through the communication hole 130a to the outside of the dust collector 100. An inlet 140a' and an outlet 140b" are respectively formed on the upper cover 140 for allowing air to flow in and out. According to the drawing, the inlet 140a' is formed to face forward and the outlet 140b" is formed to face rearward.

The air discharged through the outlet 140b" of the dust collector 100 may be discharged to the outside via a discharge port (not shown) of the cleaner body 10, and configured as a porous pre-filter for filtering ultrafine dust from the air (in the figure) Not shown) may be provided on a passage extending from the outlet of the dust collector 100 to the discharge port of the cleaner body 10.

On the other hand, the discharge port 120b of the second cyclone separator 120 is installed to pass through the bottom surface 111b of the first cyclone separator 110, and a through hole through which the second cyclone separator 120 passes is formed in the first cyclone separator 110. On the bottom surface 111b.

The lower portion of the first cyclone separator 110 is provided with an inner casing 150 for accommodating the discharge port 120b to form a second storage region D2 for collecting fine dust discharged through the discharge port 120b. The second storage area D2 may also be referred to as a fine dust storage area depending on the storage space for storing fine dust. The lower cover 160 forms the bottom surface of the second storage area D2, which will be described later.

The inner casing 150 is disposed to cover the bottom surface 111b of the first cyclonic separator 110, and is configured to accommodate the discharge port 120b of the second cyclonic separator 120 therein. The inner casing 150 extends toward the lower portion of the outer casing 101. The inner casing 150 may be in the shape of a bowl, provided with a tapered portion having a narrower cross-sectional area at its lower end than the upper end and having a gradually decreasing cross-sectional area as it goes downward.

The inner casing 150 can be coupled to the outer frame 111 of the first cyclonic separator 110 by a fixture (e.g., bolts, hooks, adhesives, etc.). Alternatively, the inner casing 150 may be integrally formed with the outer frame 111.

On the other hand, foreign matter and dust filtered by the first cyclone separator 110 are collected in the first storage area D1 of the first cyclone separator 110. The first storage area D1 may also be referred to as a foreign matter-dust storage section depending on the storage space for storing foreign matter and dust.

In the present drawing, it is shown that the first storage area D1 defined by the outer casing 101 and the pressurizing unit 170 is configured to surround the second storage area D2, and the bottom surface of the first storage area D1 may be formed by the lower cover 160, which will be later Describe it.

The various flows including the high-speed swirling flow due to the suction force of the fan unit (for example, the upward flow due to the rotation of the pressurizing portion 172 provided in the pressurizing unit 170) are mixed in the dust collector 100.

This complicated flow also prevents foreign matter and dust from flowing into the first storage area D1. In addition, even if dust is collected in the first storage area D1, dust may be suspended in the first storage area D1 due to a vortex or the like because the annular space between the outer casing 101 and the first cyclonic separator 110 may be used for collecting foreign matter. There is a structure in which the dusty outer casing 101 communicates with the space between the first storage area D1, so that depending on the situation, it may happen that dust suspended in the first storage area D1 is returned to the annular space.

This is a factor in the cleaning performance and the dust collecting performance of the vacuum cleaner 1.

Hereinafter, a structure capable of guiding foreign matter and dust filtered by the first cyclone 110 into the first storage region D1 and avoiding backflow of dust collected in the first storage region D1 will be described.

According to the embodiment, it is shown that a guiding unit 180 is disposed on the lower side of the first cyclone separator 110, and the guiding unit 180 is configured to guide the foreign matter and dust filtered by the first cyclonic separator 110 to flow into the first storage area D1, and Avoid collecting dust in the first storage area D1 from being moved (ie, reflowing) To the first cyclonic separator 110.

The guiding unit 180 includes a base 181 and a blade 182. The base 181 and the blade 182 can be integrally formed by an injection molding method.

The base 181 may be formed in a cylindrical shape similar to the outer frame 111. The outer circumferential surface of the base 181 may be formed to be parallel to the axial direction of the outer casing 101.

The blade 182 protrudes from the outer circumferential surface of the base 181 toward the inner circumferential surface of the outer casing 101, and spirally extends from the upper side to the lower side. The vane 182 may spirally extend in a flow direction in which the air is introduced into the dust collector 100, and flow along the inner circumference of the outer casing 101.

In order to realize such a structure, the blade 182 may be inclined toward a direction corresponding to one side of the outlet 140a" of the suction guide 140a provided on the upper cover 140, which will be described later. Here, the corresponding direction indicates when the suction guide is performed. When the side of the outlet 140a" of the piece 140a has a negative slope, the vane 182 has a negative slope.

When the blade 182 is formed to have such directionality, foreign matter and dust contained in the air which spirally flows and gradually flows downward into the annular space between the outer casing 101 and the first cyclonic separator 110 naturally follow along The blade 182 is introduced into the first storage area D1 located on the lower side of the blade 182. In other words, the vanes 182 are configured to guide foreign matter and dust into the first storage area D1.

The air introduced into the guiding unit 180 spirally flows along the blade 182 and gradually flows downward. Due to this flow, dust introduced into the blade 182 or dust collected in the first storage area D1 does not flow back to one side of the first cyclone 110.

The blade 182 may protrude from the outer circumferential surface of the first cyclone separator 110 and be disposed adjacent to the inner circumferential surface of the outer casing 101. Due to such a configuration, the space provided on the upper side of the guiding unit 180 (the annular space between the outer casing 101 and the first cyclonic separator 110) can be separated from the space (the first storage area D1) provided on the lower side of the guiding unit 180. .

The plurality of blades 182 may be disposed to be separated from each other at a fixed interval along the outer circumference of the guiding unit 180. Each of the vanes 182 may form the same position starting from the same position of the upper portion of the guiding unit 180 and extending to the lower portion of the guiding unit 180. Accordingly, a substantially uniform swirling flow can be produced throughout the entire area of the annular space between the outer casing 101 and the guiding unit 180. Therefore, the flow loss can be reduced.

Any one of the plurality of blades 182 may be disposed in such a manner that at least a portion of the blade 182 overlaps the other blade 182 in the vertical direction. According to the above structure, even if oriented The vertical flow of the first cyclonic separator 110 is instantaneously formed in the blade 182 or the first storage region D1, and is also blocked by the wound blade 182 located on the upper side so as not to flow into one side of the first cyclone separator 110.

Of course, the invention is not limited thereto. The lower end of one of the plurality of blades 182 may be formed along the outer circumference of the guide unit 180 from the upper end of the other blade 182. In other words, in the vertical direction of the guiding unit 180, the blades are formed not to overlap each other.

Referring to FIG. 3, both the first storage area D1 and the second storage area D2 are formed to be open toward the lower side of the outer casing 101. The lower cover 160 is coupled to the outer casing 101 to cover the openings of the first storage area D1 and the second storage area D2, and is configured to form the bottom surfaces of the first storage area D1 and the second storage area D2.

As described above, the lower cover 160 is coupled to the outer casing 101 to open and close the bottom thereof. According to the present embodiment, the lower cover 160 is coupled to the outer casing 101 by a hinge 161 to open and close the bottom of the outer casing 101 based on the rotation. However, the invention is not limited thereto. The lower cover 160 is fully detachably coupled to the outer casing 101.

The lower cover 160 is coupled to the outer casing 101 to form a bottom surface of the first storage area D1 and the second storage area D2, and the lower cover 160 is rotated by the hinge 161 to simultaneously open the first storage area D1 and the second storage area D2 to discharge foreign matter and dust. When the lower cover 160 is rotated by the hinge 161 to simultaneously open the first storage area D1 and the second storage area D2, foreign matter and dust can be simultaneously discharged.

On the other hand, when dust accumulated in the first storage area D1 is not collected in one place but scattered throughout, there is a possibility that dust is dispersed or discharged to an inappropriate place during dust discharge. . In order to solve this problem, the present invention reduces the volume by pressurizing the dust collected in the first storage area D1 by using the pressurizing unit 170.

The pressurizing unit 170 is configured to be rotatable in two directions in the first storage area D1, and the press unit 170 includes a rotating portion 171 and a pressurizing portion 172.

The rotating portion 171 is formed to surround at least a portion of the inner casing 150, and is configured to receive a driving force from a driving unit 50 (refer to FIG. 16) of the cleaner body 10 through a driving force transmitting unit 163, the rotating portion 171 being opposed to the inner portion The case 150 is rotatable. The rotating portion 171 can be rotated clockwise or counterclockwise, that is, rotated in two directions.

The inner shape of the rotating portion 171 surrounding the inner casing 150 may be formed to correspond to the outer shape of the inner casing 150. According to the above configuration, when the pressurizing unit 170 is rotated, the inner casing 150 is configured to support the center of rotation. Therefore, the rotation of the pressurizing unit 170 can be performed more stably without requiring a separate member for supporting the center of rotation of the rotating portion 171.

The rotating portion 171 may be configured to be rotatable in a state of being combined with the inner casing 150. To this end, a joint portion (not shown) configured to support the rotating portion 171 with respect to the direction of gravity may be formed on the outer circumference of the inner casing 150, and the joint portion may be formed in various forms such as a projection, a hook, or the like.

According to the above configuration, the rotating portion 171 can be in a state of being combined with the inner casing 150, and even if the lower cover 160 can be rotated by the hinge 161 to open the first storage region D1, the pressurizing unit 170 can be fixed in position.

A fixing groove 171b for coupling with a fixing member 163b of the driving force transmission unit 163 may be formed on the inner circumference of the lower portion of the rotating portion 171, which will be described later.

The pressurizing portion 172 is formed to protrude in the radial direction from the rotating portion 171 and is configured to rotate in the first storage region D1 in accordance with the rotation of the rotating portion 171. The pressing portion 172 may be formed in a flat shape, and the dust collected in the first storage region D1 is moved to one side of the first storage region D1 by the rotation of the rotating portion 171 and collected therein. When a lot of dust is accumulated, the dust is pressurized and compressed by the pressurizing portion 172.

The pressurizing portion 172 may be formed with a vent hole 172a for venting, and the vent hole 172a may be formed on the pressurizing portion 172, even if the pressurizing portion 172 is rotated within the first storage region D1, the pressurization separated by the pressurizing portion 172 The pressure balance between the side regions of the portion 172 can be adjusted to suppress an upward flow due to the rotation of the pressurizing portion 172.

An inner wall 101b for collecting dust that moves to one side due to the rotation of the pressurizing portion 172 may be formed in the first storage region D1. In the present invention, the display inner wall 101b is formed to extend in the radial direction from the lower inner circumference of the outer casing 101, and the dust introduced into the first storage area D1 is collected on both sides of the inner wall 101b due to the rotation of the pressurizing portion 172. .

The lower cover 160 is provided with a driving force transmission unit 163 which is connected to the driving unit 50 provided on the cleaner body 10 when the dust collector 100 is mounted on the cleaner body 10, and is installed to cover when the lower cover 160 is mounted When the lower portion of the outer casing 101 is opened, the driving force transmission unit 163 is connected to the pressurizing unit 170.

The drive unit 50 includes: a drive motor 51; and a drive gear 52 connected to the rotatable drive motor 51. When the dust collector 100 is mounted on the cleaner body 10, at least a portion of the drive gear 52 is exposed from the cleaner body 10, such that the drive gear 52 is configured to couple with a driven gear 163a of the drive force transfer unit 163, It will be described later.

The driving force transmission unit 163 is rotated by receiving a driving force from the driving unit 50 provided on the cleaner body 10. The driving force transmission unit 163 includes: a driven gear 163a and a solid Member 163b.

The driven gear 163a is exposed to a lower portion of the lower cover 160 and is configured to rotate relative to the lower cover 160. When the dust collector 100 is coupled to the cleaner body 10, the driven gear 163a is configured to be coupled with the drive gear 52 to receive a driving force from the drive motor 51.

The fixed member 163b is coupled to the driven gear 163a to rotate together with the driven gear 163a. When the lower cover 160 is coupled to the outer casing 101, the fixing member 163b is exposed to the upper portion of the lower cover 160, and is fixed to the fixing groove 171b provided on the inner circumference of the rotating portion 171. According to the present drawing, it is shown in a gear shape in which a plurality of fixing grooves 171b are provided on the inner circumference of the rotating portion 171 at a fixed interval from each other, and the fixing member 163b is provided with a plurality of protrusions inserted into the fixing grooves 171b. unit. In consideration of such a shape, the fixing member 163b may be referred to as a fixed gear.

A sealing unit 164 can be mounted on the fixing member 163b. When the lower cover 160 is coupled to the outer casing 101, the sealing unit 164 is disposed to cover the lower opening of the inner casing 150. In other words, the sealing unit 164 forms the bottom surface of the second storage region D2, so that the collected dust can be prevented from being introduced to one side of the driving force transmission unit 163.

The sealing unit 164 may be disposed to not rotate during the rotation of the driving force transmission unit 163. In other words, even if the driving force transmission unit 163 rotates, the sealing unit 164 can be fixed in a state of being disposed to cover the lower opening of the inner casing 150. A portion of the sealing unit 164 that is in contact with the lower opening of the inner casing 150 may be formed of an elastic material for sealing.

According to the above configuration, when the lower cover 160 is coupled to the outer casing 101, the driving force transmission unit 163 is connected to the pressing unit 170 of the dust collector 100, and when the dust collector 100 is connected to the cleaner body 10, the driving force transmission unit 163 is connected to the vacuum cleaner Drive unit 50 of body 10. In other words, the driving force generated by the driving unit 50 is transmitted to the pressurizing unit 170 through the driving force transfer unit 163.

At this time, the rotation of the drive motor 51 can be controlled to repeatedly perform the two-direction rotation of the pressurizing portion 172, for example, when a repulsive force is applied in a direction opposite to the rotational direction, the drive motor 51 can be configured to Rotate in the opposite direction. In other words, when the pressurizing portion 172 is rotated in one direction to compress the dust collected on one side to a predetermined extent, the drive motor 51 is rotated in the other direction to compress the dust collected on the other side.

When there is no (almost no) dust, the pressurizing portion 172 may be configured to strike the inner wall 101b to receive a corresponding repulsive force, or to receive a brake structure provided on the rotational path of the pressurizing portion 172 (not shown) Show) the repulsive force generated to rotate in the other direction.

Conversely, the controller in the cleaner body 10 can apply a control signal to the drive motor at regular intervals to change the direction of rotation of the pressurizing portion 172, thereby repeatedly generating the two-direction rotation of the pressurizing portion 172.

Due to the pressurizing portion 172, the dust collected in the first storage region D1 is collected or compressed in a predetermined region. Therefore, in the process of discharging the dust, the dust dispersion can be suppressed, and the possibility of being discharged to an inappropriate place is remarkably reduced.

Hereinafter, a structure in which the guiding unit 180 is connected to the rotatable pressurizing unit 170 will be described.

4 is a view from the front side of the dust collector 100 shown in FIG. 2; FIG. 5 is a view from the bottom side of the dust collector 100 shown in FIG. 2, showing a state in which the outer casing 101 is removed; Figure 6 is a cross-sectional view of the dust collector shown in Figure 4.

Referring to FIGS. 4-6 and in conjunction with the previous figures, the guiding unit 180 is coupled to the pressurizing unit 170 and is configured to be rotatable with the pressurizing unit 170 in at least one direction. The guiding unit 180 may also be referred to as a rotating unit, depending on the guiding unit 180 configured to be rotatable.

Referring to FIG. 4, when the guiding unit 180 rotates in a counterclockwise direction (to the right) corresponding to the extending direction of the lower side of the blade 182, foreign matter and dust in the air introduced into the blade 182 are caused by the rotation of the blade 182 Move down. Therefore, foreign matter and dust introduced to the blade 182 can be more easily collected in the first storage area D1. In addition, even if the foreign matter collected in the first storage area D1 is introduced into the blade 182, it is pushed back due to the rotation of the blade 182.

In view of the spiral flow on the blade 182 and the downward flow, the backflow of foreign matter and dust can be expected to be even more difficult.

Conversely, when the guiding unit 180 is rotated in the clockwise direction (to the left) corresponding to the extending direction toward the upper side of the blade 182, the foreign matter and dust in the air introduced into the blade 182 are moved upward by the rotation of the blade 182. . However, since the spiral flow is generated on the blade 182 and gradually flows downward, such movement of the foreign matter and dust and the generated backflow are hard to occur.

However, when the guiding unit 180 is rotated in a direction corresponding to the extending direction to the upper side of the blade 182, the following structure can be added in consideration of the possibility of foreign matter reflow.

As shown, a recirculation restricting rib 101a protrudes on the inner circumferential surface of the outer casing 101, facing the vane 182, and the return restricting rib 101a is inclined in one direction to intersect the vane 182. A plurality of reflow restricting ribs 101a may be disposed apart at predetermined intervals along the inner circumferential surface of the outer casing 101.

The reflow restricting rib 101a and the outer casing 101 can be integrally molded by injection molding. however, The invention is not limited to this. The reflow restricting rib 101a may be formed as a member separate from the outer casing 101 to be bonded to the inner circumferential surface of the outer casing 101.

Due to the formation of the backflow restricting rib 101a, even if the foreign matter moves upward due to the rotation of the blade 182, the foreign matter flowing back from the first storage region D1 to the blade 182 can be caught by the backflow restricting rib 101a. Therefore, the foreign matter does not all flow back to the upper side of the guiding unit 180, but is collected again in the first storage area D1.

When either of the blade 182 and the return restricting rib 101a has a positive slope with respect to the rotational axis of the guiding unit 180, the other may have a negative slope. In Fig. 4, it is shown that there is a negative slope in the blade 182, and the backflow restricting rib 101a is formed to have a positive slope. According to the above configuration, the guiding unit 180 is rotated clockwise (to the left) corresponding to the extending direction of the blade 182, so that the foreign matter in the first storage region D1 stays on the blade 182. Even if the foreign matter rises, it is continuously caught on the backflow restricting rib 101a and falls.

Of course, the inclined relationship of the blade 182 and the backflow restricting rib 101a is not limited thereto. The return restriction rib 101a may be disposed in parallel to the rotation axis of the guiding unit 180. In other words, the backflow restricting rib 101a may be disposed perpendicular to the lower cover 160, or the backflow restricting rib 101a may be formed to be inclined along the air flow direction introduced into the outer casing 101, similar to the blade 182.

On the other hand, the rotation of the guiding unit 180 can be achieved by coupling the guiding unit 180 to the pressing unit 170. In other words, as described above, the pressurizing unit 170 can be rotated by receiving a driving force from the driving unit 50 through the driving force transmitting unit 163, and therefore, coupled to the pressurizing unit 170 during the rotation of the pressurizing unit 170. The guiding unit 180 is also rotated.

In particular, the base 181 of the guiding unit 180 can be coupled to the rotating portion 171 of the pressing unit 170, and the coupling between the base 181 and the rotating portion 171 can be achieved by various methods, such as welding coupling, hook member coupling, Hook structure coupling.

Fig. 7 is a view showing a change in the shape of foreign matter and dust collected in the first storage area D1 according to whether or not the roller portion 171a is provided; Fig. 7(a) illustrates the case where the structure of the roller portion 171a is not provided, The foreign matter of the first storage area D1 and the shape of the dust D; and FIG. 7(b) illustrates the foreign matter and the dust D collected in the first storage area D1 in the case where the pressing unit 170 is provided with the structure of the roller portion 171a. shape.

As shown in FIG. 7(a), when foreign matter and dust D collected in the first storage area D1 are piled up, they gradually approach the side of the first cyclone separator 110. Especially in bulky foreign bodies In this case, even if it is collected in the first storage area D1, it is dispersed in the first storage area D1 without an aggregate shape, so that reflow occurs in the upward direction of the side where the foreign matter and the dust D are accumulated.

In order to solve this problem, as shown in FIG. 7(b), a roller portion 171a configured with a plurality of ribs extending in a radial direction at a predetermined interval may be disposed at the guiding unit 180 and the pressurizing unit 170. At least one of them faces to face the underside of the outer casing 101. The roller portion 171a is configured to provide a rotational force to foreign matter and dust collected in the first storage region D1 during rotation of at least one of the guiding unit 180 and the pressurizing unit 170.

In the embodiment shown in FIGS. 2 to 6 and 7(b), it is shown that the plurality of ribs constituting the roller portion 171a extend in the radial direction at predetermined intervals to the rotating portion 171 facing the lower cover 160. According to the configuration, during the rotation of the rotating portion 171, the foreign matter collected in the first storage region D1 and the upper portion of the dust D repeatedly collide with the plurality of ribs. Therefore, the foreign matter and the dust D are rotated, as shown in Fig. 7 (b), and finally, the collected foreign matter and dust D are rolled in a substantially spherical aggregate state.

As described above, the foreign matter and the dust D are aggregated into a spherical shape by the roller portion 171a, and therefore, the backflow due to the accumulation of the foreign matter and the dust D at a predetermined height can be avoided. When the pressurizing portion 172 is additionally combined with the roller portion 171a, the aggregation and compression of the foreign matter and the dust D can be simultaneously performed to increase the collecting property of the foreign matter and the dust D, thereby greatly reducing the possibility of backflow.

FIG. 8 is a schematic view showing a modification example of the guiding unit 180 shown in FIG. 2; and FIG. 9 is a cross-sectional view of the dust collector 200 shown in FIG.

As shown in FIGS. 8 and 9, the guiding unit 280 may have a side skirt 283 extending downward from an upper portion in an oblique downward direction, and a gap between the side skirt 283 and the outer casing 201 gradually decreases from the upper portion to the lower portion.

Since the side skirt 283 is formed, foreign matter and dust that has fallen but not passed through the screen filter 212 of the first cyclone separator 210 are guided by the side skirt 283 to be introduced into the first storage area D1, but collected in the first storage. Foreign matter and dust in the area D1 are restricted by the side skirts 283 without flowing upward. In other words, the backflow of foreign matter and dust collected in the first storage area D1 is restricted by the side skirt 283.

Considering in more detail the structure in which the side skirt 283 is disposed on the guiding unit 280, the guiding unit 280 includes a base 281, a side skirt 283, and a blade 282. The base 281, the side skirts 283, and the vanes 282 can be integrally formed by injection molding.

The base 281 is coupled to the rotating portion 271 of the pressurizing unit 270, which may be formed to be parallel to the axial direction of the outer casing 201.

The side skirt 283 extends downwardly from the upper portion of the base 281 in an inclined manner. Therefore, the gap between the side skirt 283 and the base 281 gradually increases from the upper portion to the lower portion.

Although not shown in the drawings, the plurality of ribs forming the aforementioned roller portion may extend in the radial direction of the gap between the base 281 and the side skirt 283.

The blade 282 protrudes from the side skirt 283 toward the inner circumferential surface of the outer casing 201 and spirally extends from the upper side to the lower side. The vane 282 may be introduced into the dust collector 200 and spirally extended along a flow direction in which air flows along the inner circumference of the outer casing 201.

According to the drawing, it shows a structure in which the shapes of the base 281 and the side skirts 283 are different from each other. However, the invention is not limited thereto. As a modified example, the base 281 and the side skirt 283 can be configured as a component in which the base 281 and the side skirts 283 are not separated from each other (in the present drawing, the gap between the base 281 and the side skirts 283) It is filled, and the part may be referred to as a side skirt, the inside of which is coupled to the rotating portion 271, and the outer side of the side skirt is formed to be inclined downward.

On the other hand, most of the foreign matter or dust that has not passed through the first cyclone separator 110 falls down and is collected in the first storage area D1, but depending on the situation, foreign matter or dust can be caught or accumulated and fixed in the screen filter. On the 112, this reduces the area the screen filter 112 uses to allow air to pass, thereby increasing the load on the fan unit that provides the suction force and giving the user a visually unclean impression.

In order to solve this problem, a method of disassembling and cleaning the dust container may be considered, but this may cause inconvenience to the user, and actually the portion provided by the first cyclone is separated from the first storage area (for example, the unit to be guided 180) The structure in which the blades 182 or the side skirts are spaced apart, as will be described later, may also have a problem of difficulty in cleaning.

Hereinafter, a structure capable of continuously removing foreign matter and dust caught or accumulated on the mesh filter 112 during the operation of the vacuum cleaner 1 will be explained.

Figure 10 is a perspective view showing another example of the dust collector 300 shown in Figure 1; Figure 11 is an enlarged view showing the inside of the "B" portion shown in Figure 10; and Figure 12 is a view showing Figure 10 A cross-sectional view of the "B" portion shown.

Referring to FIGS. 10 through 12, the rotation unit 380 is coupled to the pressurizing unit 370 to rotate together with the pressurizing unit 370. As shown, the rotating unit 380 is formed to surround at least a portion of the first cyclonic separator 310 and is configured to relatively rotate in at least one direction relative to the first cyclonic separator 310.

The rotating unit 380 is configured to scrape or sweep foreign matter and dust trapped or accumulated on the mesh filter 312 of the first cyclone separator 310 during rotation. To achieve this, the rotating unit 380 includes a lower frame 381, an upper frame 385, and a post 383.

The lower frame 381 is coupled to the rotating portion 371 of the pressurizing unit 370, and forms a cylindrical shape at a lower portion or a lower side of the first cyclonic separator 310. For example, the lower frame 381 may form a lower end that surrounds the first cyclonic separator 310.

In the present invention, the lower frame 381 can be understood to be similar to the structure of the base 181 of the guiding unit 180 as described above. The lower frame 381 may be formed to be parallel to the axial direction of the outer casing 301.

The blade 382 protrudes from the lower frame 381 toward the inner circumferential surface of the outer casing 301, and the blade 382 spirally extends from the upper side to the lower side. The vane 382 may be introduced into the dust collector 300 and spirally extended along a flow direction in which air flows along the inner circumference of the outer casing 301.

The upper frame 385 is spaced upward from the lower frame 381 by a predetermined distance and is formed to surround the upper end of the first cyclonic separator 310.

The struts 383 are disposed to cover the mesh filter 312 and extend in the vertical direction of the mesh filter 312 and connect the lower frame 381 and the upper frame 385, respectively. In other words, the lower frame 381 is coupled to the lower end of the post 383, and the upper frame 385 is coupled to the upper end of the post 383 to surround a portion of the entirety of the first cyclonic separator 310.

A plurality of struts 383 may be disposed within the first cyclonic separator 310 and disposed at predetermined intervals along the inner circumference of the first cyclonic separator 310. Thus, an opening is formed between adjacent two struts 383 and the screen filter 312 is exposed from the opening. Therefore, the air spirally flowing through the annular space between the outer casing 301 and the first cyclonic separator 310 passes through the mesh filter 312 exposed from the opening and flows into the first cyclone separator 310.

When the pressurizing unit 370 is rotated by receiving the driving force of the driving unit 50 from the driving force transmitting unit 363, the rotating unit 380 connected to the pressurizing unit 370 rotates together with the strut 383 while the strut 383 is along the mesh filter 312 The outer circumference moves.

A scraper 384 is disposed on the inner surface of the post 383 facing the outer surface of the screen filter 312. The scraper 384 has a shape extending along the length direction of the strut 383 and is disposed to straddle the vertical direction of the mesh filter 312.

During rotation of the rotating unit 380, the scraper 384 is configured to scrape or sweep foreign matter or dust accumulated on the mesh filter 312. In this regard, the scraper 384 can be configured to mesh with the screen Filter 312 is in contact.

The scraper 384 can be configured with a brush formed of an elastic material or formed of a synthetic resin material similar to the strut 383.

When the scraper 384 is configured with a brush, it has the advantage that the brush is inserted into the gap of the mesh filter 312 to effectively remove foreign matter or dust accumulated in the gap. When the scraper 384 is configured with a brush, the scraper 384 can be inserted into a slot formed along the extending direction of the post 383 and fixed to the post 383.

The scraper 384 may be formed of an elastic material (eg, rubber, silicone, etc.) and integrally coupled to the strut 383 in a two-shot molding process. When the scraper 384 is formed of an elastic material, the scraper 384 is brought into close contact with the mesh filter 312 to effectively sweep away the foreign matter or dust accumulated on the mesh filter 312.

The scraper 384 can be formed of the same synthetic resin material as the stay 383, and integrally molded with the stay 383 by injection molding. The scraper 384 can protrude in the extending direction of the pillar 383. In this case, there is an advantage that the rotary unit 380 provided with the scraper 384 has a single material and can be manufactured by a one-shot molding method.

On the other hand, although not shown in the drawings, the reflow restricting rib 101a described in connection with the embodiment of Figs. 2 to 7 and the modification example of Fig. 8 can be combined with the vane 382 of the present embodiment.

In short, the backflow restricting rib 101a inclined in the direction crossing the blade 382 may protrude along the inner circumferential surface of the outer casing 301 to face the blade 382. A plurality of backflow restricting ribs 101a may be disposed apart at predetermined intervals along the inner circumferential surface of the outer casing 301.

Due to the formation of the backflow restricting rib 101a, even if the foreign matter moves upward due to the rotation of the blade 382, the foreign matter flowing back from the first storage region D1 to the blade 182 can be caught by the backflow restricting rib 101a. Therefore, the foreign matter does not all flow back to the upper side of the guiding unit 180, but is collected again in the first storage area D1.

Hereinafter, a modified example of the rotating unit 480 will be described with reference to FIGS. 13 to 16.

Figure 13 is a schematic view showing a modification example of the rotating unit 480 shown in Figure 10; Figure 14 is a view from the bottom side of the dust collector 400 shown in Figure 13; Figure 15 is a view showing the driving force of the driving unit 50. A schematic diagram of the driven force transmitting unit 463 being transmitted to the rotating unit 480; and FIG. 16 is a cross-sectional view of the dust collector 400 shown in FIG.

Referring to FIG. 13 to FIG. 16, the rotating unit 480 includes: a lower frame 481 and an upper frame. A frame 485, a post 483, a scraper 484, and a side skirt 486. The modified example has the same structure as the rotating unit described in the foregoing embodiment except for the side skirt 486 and the roller portion 481a. Therefore, the repeated description will be omitted.

A side skirt 486 that extends outward in an obliquely downward direction projects over the lower frame 481. Therefore, the gap between the side skirt 486 and the lower frame 481 gradually increases from the upper portion to the lower portion thereof.

Because the side skirts 486 are formed, foreign matter and dust that falls but does not pass through the screen filter 412 of the first cyclone separator 410 are guided by the side skirts 486 and introduced into the first storage area D1, but collected in the first storage area D1. The foreign matter and dust inside are restricted by the side skirt 486 and do not flow upward. In other words, the backflow of foreign matter and dust collected in the first storage area D1 is restricted by the side skirt 486.

However, since the gap between the outer casing 401 and the side skirt 486 is reduced toward the lower side, when the size of the foreign matter is large, there is a problem that foreign matter is caught in the gap. This will prevent other foreign matter and dust from flowing into the first storage area D1 through the gap.

However, in the present modified embodiment, the rotating unit 480 is coupled to the pressurizing unit 470 and configured to be rotatable together with the pressurizing unit 470, thus even if foreign matter is caught between the side skirt 486 and the outer casing 401 The gap is released by the rotation of the rotating unit 480. The foreign matter released from the gap can be introduced into the first storage area D1 by the swirling flow caused by the driving of the vacuum cleaner 1.

On the other hand, the roller portions 481a, 471a configured with a plurality of ribs extending in the radial direction at predetermined intervals may be disposed on at least one of the rotating unit 480 and the pressurizing unit 470. In the present drawing, it is shown that the first roller portion 481a and the second roller portion 471a are provided on the rotating unit 480 and the pressing unit 470, respectively.

First, the first roller portion 481a is described, and a plurality of ribs formed in the first roller portion 481a may be formed in a radial direction of a gap between the lower frame 481 and the side skirt 486, and a plurality of ribs are provided to face the lower cover ( Not shown in the figure).

The plurality of ribs constituting the second roller portion 471a may extend in the radial direction at a predetermined interval on the rotating portion 471 to face the lower cover.

Since the rotating unit 480 is configured to surround at least a portion of the pressurizing unit 470, the first roller portion 481a may be formed to surround the second roller portion 471a.

According to the above configuration, during the rotation of the pressurizing unit 470 and the rotating unit 480 coupled thereto, the upper portion of the foreign matter and dust collected in the first storage region D1 and the first roller portion 481a are formed. The plurality of ribs of the second roller portion 471a repeatedly collide with each other, and therefore, the foreign matter and the dust are rotated, and finally, the collected foreign matter and the dust are rolled in a substantially spherical shape.

The first roller portion 481a and the second roller portion 471a may have different heights with respect to the lower cover, and in the present embodiment, it is shown that the first roller portion 481a is located above the second roller portion 471a. According to the above configuration, the first roller portion 481a or the second roller portion 471a corresponding to the stacking height of the foreign matter and the dust can be suitably used to collect the foreign matter and the dust into a spherical shape. In other words, the first roller portion 481a can be used to collect foreign matter and dust having a relatively large volume into a spherical shape compared to the second roller portion 471a.

However, the invention is not limited thereto. The first roller portion 481a and the second roller portion 471a may have the same height with respect to the lower cover 460. In the present embodiment, the plurality of ribs constituting the first roller portion 481a and the plurality of ribs constituting the second roller portion 471a may be disposed to cross each other in the rotational direction.

As shown in FIG. 1, the vacuum cleaner 1 of the present invention is configured in such a manner that air containing foreign matter, dust, fine dust, and ultrafine dust is directly introduced into the dust collector 100 through the suction unit 20 without passing through The vacuum cleaner body 10. To this end, the upper cover 140 of the dust collector 100 is provided with an inlet and an outlet for introducing air and discharging air, respectively. This outlet is directly connected to the connection unit 30 connected to the suction unit 20.

Hereinafter, the upper cover 140 having an outlet and an inlet will be described in detail.

Figure 17 is a view illustrating the upper cover 140 separated from the dust collector shown in Figure 2; Figure 18 is a view of the inlet side of the upper cover 140 as shown in Figure 17; Figure 19 is a top cover as shown in Figure 17. A view of the outlet side of 140; FIG. 20 is a view of the bottom side of the upper cover 140 as shown in FIG. 17; and FIG. 21 is a schematic view showing the flow of the airflow in the upper cover 140 as shown in FIG.

Referring to FIGS. 17 to 21 and FIGS. 1 to 3 described above, the upper cover 140 is coupled to the upper side of the outer casing 101 to cover the cover member 130. Therefore, the upper cover 140 is disposed to cover both the first cyclone separator 110 and the second cyclonic separator 120, and the upper cover 140 may form an upper appearance of the dust collector 100.

The upper cover 140 is provided with a suction guide 140a and a discharge guide 140b to form separate passages. The suction guide 140a forms a passage for introducing air into the outer casing 101, and the discharge guide 140b forms air for separating foreign matter, dust, and fine dust when passing through the first cyclone separator 110 and the second cyclone separator 120. The passage of the discharge.

The suction guide 140a and the discharge guide 140b have an inlet 140a', 140b' and an outlet 140a", 140b", respectively. According to the present drawing, it is shown that the inlet 140a' of the suction guide 140a is open in the direction facing the outlet 140b" of the discharge guide 140b.

The connection unit 30 connected to the suction unit 20 for sucking air containing foreign matter, dust, and fine dust is directly connected to the inlet of the suction guide 140a, and the outlet of the suction guide 140a is formed on the bottom surface of the upper cover 140 to An annular space between the outer casing 101 and the first cyclonic separator 110 is in communication.

At least a portion of the suction guide 140a is bent and extends toward the inner circumference of the outer casing 101, so that the air introduced from the inlet 140a' is vortexed in a spiral shape as it flows into the annular space.

In the present embodiment, it is shown that the suction guide 140a is formed as a single passage. In other words, the suction guide 140a is provided with an inlet 140a' and an outlet 140a". Therefore, the cross-sectional area of the suction guide 140a can be increased to further reduce the large foreign matter card when compared with the modified embodiment to be described below. The phenomenon on the inside side solves a predetermined degree of interference problem between the structure adjacent to the upper cover 140 and the electronic component caused by the simplification of the structure of the suction guide 140a.

An inlet of the discharge guide 1401b is formed on a bottom surface of the upper cover 140 to communicate with an internal space of the vortex finder tube 122 positioned in the second cyclone 120. Referring to FIGS. 2 and 3, the cover member 130 is formed with a communication hole 130a corresponding to the vortex finder tube 122, and therefore, the inlet of the discharge guide 140b is configured to communicate with the communication hole 130a.

The inlet 140b' of the discharge guide 140b may be formed on both sides of the suction guide 140a forming a single passage, and the outlet 140b" of the discharge guide 140b is configured to be discharged with the both sides formed on the suction guide 140a The inlet 140b' of the guide 140b is in communication.

As shown in Fig. 1, the air discharged via the outlet 140b" of the discharge guide 140b may be directly discharged to the outside or discharged to the outside via the discharge port of the cleaner body 10. In the latter case, it is configured to filter ultrafine dust from the air. A porous pre-filter (not shown) may be disposed on a passage extending from the outlet 140b" of the dust collector 100 to the discharge port of the cleaner body 10.

As described above, when the suction guide 140a is formed to have a single flow path and the discharge guide 140b is formed by the vacant space of the suction guide 140a, the upper cover 140 having a fixed suction efficiency can be provided.

The upper cover 140 having the above structure can be integrally formed by injection molding. As shown in FIG. 17, the upper cover 140 can be injection molded by combining and separating in three directions by three molds, for example, the inlet side M1 of the suction guide 140a, the outlet side M2 of the discharge guide 140b, and the bottom side M3 of the upper cover 140. .

The parting lines which are injection-molded in three directions can be formed on the upper cover 140, respectively, so that it can be inspected according to the parting line how the upper cover 140 is manufactured (i.e., whether the upper cover 140 is manufactured by the injection molding method in the same manner as the embodiment). ).

The injection molding problem of the upper cover 140 depends on how the suction guide 140a and the discharge guide 140b are formed, and in particular, when each of the suction guide 140a and the discharge guide 140b forms a three-dimensional shape, one passage is formed by at least two molds. And the two molds must be mated to each other.

Referring to FIG. 20, the suction guide 140a may be formed by two molds combined in two directions, such as the inlet side M1 of the suction guide 140a and the bottom side M3 of the upper cover 140. The area where the two molds must fit each other is the area M13, and the parting line can be formed in this area.

In addition, the discharge guide 140b may be formed by two molds combined in two directions, such as the outlet side M2 of the discharge guide 140b and the bottom side M3 of the upper cover 140. The area where the two molds must fit each other is the area M23, and the parting line can be formed in this area.

In this manner, the upper cover 140 formed with the suction guide 140a and the discharge guide 140b can be injection molded using three molds at the same time, and therefore, a large amount of productivity of the upper cover 140 can be increased.

Hereinafter, an upper cover 540 of a modified embodiment will be described in which a suction guide 540a is provided with an inlet 540a' and two outlets 540a1", 540a2".

Figure 22 is a schematic view showing a modified embodiment of the upper cover 140 as shown in Figure 17; Figure 23 is a view of the inlet side of the upper cover 540 as shown in Figure 22; Figure 24 is a top cover 540 as shown in Figure 22. View of the outlet side; FIG. 25 is a view of the bottom side of the upper cover 540 as shown in FIG. 22; and FIG. 26 is a schematic view showing the flow of the airflow in the upper cover 540 as shown in FIG.

Similar to the above embodiment, the upper cover 540 of the present modification embodiment is installed to cover the cover member 130 positioned on the upper side of the outer casing 101, and therefore, the upper cover 540 is disposed to cover the first cyclonic separator 110 and the second cyclonic separator 120. The upper cover 540 may form an upper appearance of the dust collector 100.

Referring to Figures 22 through 26, the upper cover 540 is provided with a suction guide 540a and a discharge guide 540b to form separate passages. The suction guide 540a forms a passage for introducing air into the outer casing 101, and the discharge guide 540b forms air for separating foreign matter, dust, and fine dust when passing through the first cyclone separator 110 and the second cyclone separator 120. The passage of the discharge.

The suction guide 540a and the discharge guide 540b respectively have an inlet 540a', 540b' and an outlet 540a1", 540a2"/540b". According to the drawing, the inlet 540a' of the suction guide 540a is shown facing the discharge guide. The outlet 540b" of the piece 540b has an open shape in the direction.

The present modified embodiment is different from the foregoing embodiment in that the suction guide 540a has one inlet 540a' and two outlets 540a1", 540a2", and the inlet 540a' of the suction guide 540a is directly connected to the connection unit 30, which is 30 It is connected to the suction unit 20 for sucking air containing foreign matter, dust, and fine dust. Two outlets 540a1", 540a2" of the suction guide 540a are formed on the bottom surface of the upper cover 540 to communicate with the annular space between the outer casing 101 and the first cyclonic separator 110.

The suction guide 540a includes a branch wall 540a3, a first branch passage 540a1, and a second branch passage 540a2.

The branch wall 540a3 is formed at a position facing the entrance of the suction guide 540a. Therefore, the air introduced through the inlet of the suction guide 540a collides with the branch wall 540a3 to be dispersed to both sides of the branch wall 540a3.

The branch wall 540a3 can form an inlet 540a' that is perpendicular to the suction guide 540a. In this case, the air colliding with the branch wall 540a3 can be evenly distributed to the left and right sides of the branch wall 540a3. However, in this case, since air flows into the inlet 540a' of the suction guide 540a, a phenomenon in which foreign matter adheres to the branch wall 540a3 facing the inlet 540a' may be retained.

In order to avoid this, as shown, the branch wall 540a3 may be formed to be inclined with respect to the inlet 540a' of the suction guide 540a. In other words, the branch wall 540a3 may be formed in a shape in which its left side or right side is inclined toward the inlet. According to the foregoing structure, it can be configured such that foreign matter can be moved along the inclined branch wall 540a3, thereby solving the foreign matter stagnation phenomenon occurring in the structure in which the branch wall 540a3 is formed perpendicular to the inlet 540a' of the suction guide 540a.

The first branch passage 540a1 and the second branch passage 540a2 are disposed on both sides of the branch wall 540a3, and a portion thereof is curved and extends toward the inner circumference of the outer casing 101 to be introduced between the outer casing 101 and the first cyclonic separator 110 when air is introduced. In the annular space, a spiral vortex motion is performed.

The first branch passage 540a1 and the second branch passage 540a2 may extend in the same rotational direction with each other. In order to realize such a structure, either of the first branch passage 540a1 and the second branch passage 540a2 forms a passage toward the rear side of the branch wall 540a3, and the other forms a passage toward the front side of the branch wall 540a3.

An inlet 540b' of the discharge guide 540b is formed on the bottom surface of the upper cover 540 to communicate with the internal space of the vortex finder tube 122 positioned in the second cyclone 120. As described above, when the communication hole 130a corresponding to the vortex finder tube 122 is formed on the cover member 130, the inlet 540b' of the discharge guide 540b is configured to communicate with the communication hole 130a.

The outlet 540b" of the discharge guide 540b is configured to communicate with the inlet 540b' of the discharge guide 540b, and the air discharged through the outlet 540b" of the discharge guide 540b is directly discharged to the outside, and passes through the cleaner shown in FIG. The discharge port of the body 10 is discharged to the outside. In the latter case, a porous pre-filter (not shown) configured to filter ultrafine dust from the air may be disposed on a passage extending from the outlet of the dust collector 100 to the discharge port of the cleaner body 10.

Figure 27 is a schematic view showing a dust collector 600 of another embodiment shown in Figure 1; and Figure 28 is a schematic view showing the inner casing 650, the rotating member 670, and the lower cover 660 shown in Figure 27 separated. For reference, the structure to be described below is also applicable to the structure of the foregoing embodiment.

Referring to Figures 27 and 28, the inner casing 650 is coupled to a lower portion of an outer frame 611 that forms the outer shape of the first cyclonic separator 610. The inner casing 650 provides a partition wall 651 for separating the space in which the air is introduced into the first cyclone separator 610 and the space in which the fine dust discharged through the discharge port 620b of the second cyclone separator 620 is stored (ie, the second storage area D2). . The partition wall 651 can be referred to as a functional separator.

A through hole 651a for inserting the second cyclone separator 620 is formed on the partition wall 651, and a lower portion of the second cyclone separator 620 is installed to pass through the partition wall 651 via the through hole 651a. A discharge port 620b formed at a lower end of the second cyclone separator 620 is disposed below the partition wall 651. Therefore, the fine dust discharged through the discharge port 620b is stored in the second storage area D2 located below the partition wall 651.

When the partition wall 651 is compared with the aforementioned bottom surfaces 111b, 211b, 411b of the first cyclonic separators 110, 210, 310, 410, the forming position of the inner casing 650 is different from that of the first cyclone separators 110, 210, 310, 410. In addition to the outer frames 111, 211, they have the same function. Therefore, the space partitioning structure of the partition wall 651 of the present embodiment which replaces the space partitioning structure of the bottom surfaces 111b, 211b, 411b can also be applied to the foregoing embodiment.

A fixed protrusion 652 protrudes from the lower end of the inner casing 650, and the fixed protrusion 652 is coupled to a fixing ring 680 which will be described below. A plurality of fixing protrusions 652 may be disposed to be spaced apart from each other along the outer circumference of the inner casing 650.

A rotating member 670 is disposed to surround at least a portion of the inner casing 650. To this end, the rotating member 670 is provided with a receiving portion 670a corresponding to the outer shape of the inner casing 650. As shown in the figure, when the inner casing 650 is in the shape of a bowl having a tapered portion, the lower end thereof has a narrower cross-sectional area than the upper end, and has a cross-sectional area which is gradually reduced toward the lower side, the receiving portion 670a is also It can be formed into a corresponding bowl shape.

An extension portion 671 may be formed on the bottom surface of the rotating member 670 facing the lower cover 660 to extend downward in the rotational direction of the rotating member 670. In the present drawing, it is shown that the extending portion 671 is formed in a circular shape on the bottom surface of the rotating member 670, corresponding to the tapered portion of the accommodating portion 670a.

The rotating member 670 is configured to be rotatable about the fixed inner casing 650, and the rotating member 670 is rotated by receiving a driving force from the driving unit 50 (refer to FIG. 16) of the cleaner body 10 through the driving force transmitting unit 663, and the rotating member 670 is configured to It can be rotated clockwise or counterclockwise, or it can be rotated in both directions.

The rotating member 670 of the present embodiment can be understood as a structure in which the pressurizing units 170, 270 of the foregoing embodiment and the guiding units 180, 280 are integrally formed. The rotating member 670 can be formed into a single member by injection molding.

29 is a schematic view of the rotating member 670 as shown in FIG. 28 as viewed from the bottom side; FIG. 30 is a side view showing the rotating member 670 shown in FIG. 29; and FIG. 31 is a view showing the rotating member shown in FIG. 670 floor plan.

Referring to Figures 29 through 31 and in conjunction with Figures 27 and 28, the rotating member 670 has a side skirt 672 extending downwardly from the upper portion in an obliquely downward direction, the gap between the side skirt portion 672 and the outer casing 601 being The upper to lower portions gradually decrease. Because the side skirt portion 672 is formed, foreign matter and dust that has fallen but not passed through the screen filter 612 of the first cyclone separator 610 are guided by the side skirt portion 672 to enter the first storage region below the side skirt portion 672. In D1, foreign matter and dust collected in the first storage area D1 are restricted by the side skirt portion 672 without flowing upward. In other words, the backflow of foreign matter and dust collected in the first storage area D1 is restricted by the side skirt portion 672.

However, since the gap between the side skirt portion 672 and the outer casing 601 is reduced toward the lower side, when the size of the foreign matter is large, a problem that the foreign matter is caught in the gap between the side skirt portion 672 and the outer casing 601 may be caused. This will prevent other foreign matter and dust from flowing into the first storage area D1 through the gap.

However, in the present modified embodiment, the rotating member 670 is configured to be rotatable, and therefore, even if the foreign matter is caught in the gap between the side skirt portion 672 and the outer casing 601, the foreign matter is released due to the rotation of the rotating member 670. . The foreign matter released from the gap between the side skirt portion 672 and the outer casing 601 can be introduced into the first storage region D1 by the swirling flow caused by the driving of the vacuum cleaner 1.

According to the present drawing, the display side skirt portion 672 extends downward from the upper end of the rotating member 670 to the outside in an inclined manner, and a gap 670b is formed on the inner side thereof. The gap 670b is formed to gradually increase from the upper portion toward the lower portion of the side skirt portion 672. The side skirt portion 672 may be formed above the extension portion 671. In other words The lower end of the side skirt portion 672 can be positioned above the upper end of the extension portion 671.

A projection 673 may be formed on the outer circumferential surface of the side skirt portion 672 facing the inner circumferential surface of the outer casing 601, and the projection 673 is performed by the user to view the rotated projection 673 during the rotation of the rotary member 670. The task of whether the rotating member 670 is rotated is intuitively known.

As an example, as shown, the protrusion 673 can extend in an oblique manner along the circumference of the side skirt 672. Here, the tilt includes a linear shape slope and a spiral shape slope. The protrusion 673 may be provided with a plurality of ribs which are disposed apart from each other along the circumference of the side skirt portion 672. Each of the ribs is introduced into the dust collector 600 and extends in a flowing manner in the flow direction of the air flowing along the inner circumference of the outer casing 601. Each of the ribs may protrude from the side skirt portion 672 in an extending direction at a uniform height.

Here, the protruding portion 673 protrudes in a shorter length than the projection of the blades 182, 282, 382 of the foregoing embodiment. Therefore, the protrusion 673 is a function that performs a function of letting the user intuitively know whether the rotating member 670 is rotated, rather than a member that performs a guiding function as the blades 182, 282, 382. Therefore, it can be understood as a geometrical screw.

As another example, the protrusion 673 may be formed as a plurality of protrusions (not shown) protruding from the outer circumferential surface of the side skirt portion 672, and the plurality of protrusions may be disposed to be spaced apart at a predetermined interval.

A recess (not shown) instead of the projection 673 may be formed on the side skirt portion 672. In other words, the concave portion is formed into a shape recessed inward from the outer circumferential surface of the side skirt portion 672 to perform a function for the user to intuitively know the rotating member 670 by viewing the rotated protruding portion 673 during the rotation of the rotating member 670. Whether to rotate the task. The recess may extend in an elongated manner or be configured as a combination of bit-like grooves.

The rotating member 670 is provided with a roller portion 674 that rolls and collects foreign matter and dust collected in the first storage region D1. The roller portion 674 may be configured with a plurality of ribs spaced apart from each other on the surface of the rotating member 670 to face the lower cover 660. The plurality of ribs may extend in a direction crossing the rotation direction of the rotating member 670.

In the present embodiment, it is shown that a plurality of ribs constituting the drum portion 674 may be spaced apart from each other at a predetermined interval along the inner circumference of the extending portion 671. Each of the plurality of ribs is disposed in a radial direction of the rotating member 670. According to the foregoing configuration, when the rotating member 670 is viewed from the bottom side, the plurality of ribs constituting the drum portion 674 have a radially extending shape around the rotating shaft of the rotating member 670.

During the rotation of the rotating member 670, the plurality of ribs constituting the roller portion 674 are sequentially in contact with the upper portion of the foreign matter and dust collected in the first storage region D1. The foreign matter and dust are exposed to contact The generated rotational force acts to roll in a substantially spherically gathered state with the rotational direction of the rotating member 670.

A pressing portion 677 may protrude from the rotating member 670 in a radial direction, and the pressing portion 677 is disposed to straddle the annular first storage region D1 in the radial direction, and is configured to rotate with the rotating member 670 And rotating in the first storage area D1. The pressurizing portion 677 can be formed in a flat shape. The dust collected in the first storage area D1 is moved by the rotation of the pressurizing portion 677 and collected in an inner wall 601b, and when a lot of dust is accumulated, the dust is pressurized and compressed by the pressurizing portion 677.

Figure 32 is a schematic view showing the structure in which the fixing ring 680 shown in Figure 28 is coupled to the inner casing 650.

Referring to Figure 32 and in conjunction with Figures 27-31, a rotating member 670 is rotatably coupled to the inner casing 650. For the coupling, in a state where the inner casing 650 is housed in the accommodating portion 670a of the rotating member 670, the fixing ring 680 is fixed to the fixing protrusion 652 protruding from the lower end portion of the inner casing 650.

The fixing ring 680 is provided with a locking hole (or locking groove) 681 formed in a ring shape, and the fixing ring 680 is installed to surround the lower end portion of the inner casing 650, and the fixing protrusion 652 is inserted therein. The fixing ring 680 may be formed with a cutout portion 682 to elastically deform a fixing portion. The fixing ring 680 may be formed of a synthetic resin material or a metal material.

A locking projection 675 projects from the lower inner circumference of the rotating member 670, and the locking projection 675 can protrude from the inner side of the receiving portion 670a and extend along the inner circumference.

The locking protrusion 675 is disposed on the fixing ring 680 in a state where the fixing ring 680 is fixed to the lower end portion of the inner casing 650. In other words, when the retaining ring 680 is mounted on the inner casing 650, the retaining ring 680 is configured to cover at least a portion of the locking projection 675 from the bottom side. Therefore, even if the lower cover 660 is opened by the hinge to open the first storage area D1, the locking protrusion 675 can be hooked and supported by the fixing ring 680 to maintain the state in which the rotating member 670 is coupled to the inner casing 650.

On the other hand, a stopper 653 is provided at the upper end of the inner casing 650 and is disposed to cover the upper end of the rotating member 670, and the upward movement of the rotating member 670 can be restricted by the stopper 653. In other words, the mounting position of the rotating member 670 relative to the inner casing 650 can be limited by the retaining ring 680 and the stop 653.

Fig. 33 is an exploded perspective view showing the lower cover 660 shown in Fig. 28; and Fig. 34 is a view showing a structure in which the lower cover 660 is closed in the structure shown in Fig. 32.

Referring to FIGS. 33 and 34 and in conjunction with FIGS. 27 to 32, the lower cover 660 is provided with a driving force transmission unit 663. When the dust collector 600 is mounted on the cleaner body 10, the driving force is transmitted. The transfer unit 663 is connected to the drive unit 50 provided on the cleaner body 10, and when the lower cover 660 is installed to cover the lower opening of the outer casing 601, the lower cover 660 is coupled to the rotating member 670.

In other words, the driving force transmission unit 663 is connected to the driving unit 50 and the rotating member 670 of the cleaner body 10, respectively, and is configured to transmit the rotational driving force to the rotating member 670.

The drive unit 50 includes: a drive motor 51; and a drive gear 52 coupled to the drive gear 52 to be rotatable. When the dust collector 600 is mounted on the cleaner body 10, at least a portion of the drive gear 52 is exposed from the cleaner body 10, such that the drive gear 52 is configured to couple with a driven gear 663a of the drive force transfer unit 663, It will be described later.

The driving force transmission unit 663 is rotated by receiving a driving force from the driving unit 50 provided in the cleaner body 10, and the driving force transmission unit 663 includes a driven gear 663a and a fixing member 663b.

The driven gear 663a is exposed to a lower portion of the lower cover 660 and is configured to rotate relative to the lower cover 660. When the dust collector 600 is coupled to the cleaner body 10, the driven gear 663a is configured to be coupled with the drive gear 52 to receive the driving force of the drive motor 51. The driven gear 663a may be installed to be spaced apart from the bottom surface of the lower cover 660 by a predetermined distance (for example, 0.01 to 0.5 mm).

The fixed gear 663b is coupled to the driven gear 663a and is configured to be rotatable together with the driven gear 663a. In other words, the fixed gear 663b and the driven gear 663a rotate at the same RPM (Revolution Per Minute). A boss portion 663a' provided at the center of the driven gear 663a protrudes to the upper portion of the lower cover 660 through a hole 660a, and the fixed gear 663b is fixed to the boss portion 663a' located at the upper portion of the lower cover 660.

The fixing between the driven gear 663a and the fixed gear 663b can be achieved by a hook member or a fixing member (for example, a screw, a rivet, or the like). The fixing member may be fixed to the driven gear 663a by a fixed gear 663b, or conversely, the fixing member may be fixed to the fixed gear 663b by the driven gear 663a.

Here, a bearing 663c for reducing friction may be inserted into the boss portion 663a' exposed to the upper portion of the lower cover 660, and the bearing 663c may be disposed in contact with the fixed gear 663b.

When the lower cover 660 is coupled to the outer casing 101, the fixed gear 663b is disposed on the upper portion of the lower cover 660 to be coupled with the fixing protrusion 676 provided on the lower inner circumference of the rotating member 670. According to the present drawing, it is shown that the gear portion 663b' having a plurality of teeth is disposed at the upper portion of the fixed gear 663b, so that the fixing protrusion 676 can be interposed between the plurality of teeth.

The seal portion 663b" may extend along the outer circumference of the fixed gear 663b positioned below the gear portion 663b' of the fixed gear 663b. The seal portion 663b" is in close contact with the lower inner circumferential surface of the rotating member 670 to prevent foreign matter or dust from being introduced Into the rotating member 670. The sealing portion 663b" may be formed of a rubber material, an anthrone material, or the like, and the sealing portion 663b" may restrict foreign matter or dust from being introduced into one side of the driving force transmission unit 663, thereby improving driving reliability of the driving force transmission unit 663.

At least one or more circular ribs 660b, 660c surrounding the hole 660a may be formed on the bottom surface of the lower cover 660, and the driven gear 663a is mounted on the hole 660a. The circular ribs 660b, 660c have a function of preventing dust and foreign matter collected in the first storage area D1 from flowing therein. As shown, when the sealing portion 663b" is disposed to surround the circular rib 660b, the inflow of foreign matter can be more effectively blocked.

A plurality of circular ribs 660b, 660c may be disposed thereon and disposed in a concentric shape, and a filler 660d may be inserted into the annular space defined by the circular ribs 660b, 660c. A fabric such as a felt material can be used as the filler 660d. The filler 660d is configured to support the driven gear 663a and capture dust or foreign matter flowing into the interior.

A sealing unit 664 can be mounted on the fixed gear 663b. The sealing unit 664 can be fixed to the fixed gear 663b by a hook coupling method. The fixing between the sealing unit 664 and the fixed gear 663b can of course be achieved by a separate fixing member (not shown).

When the lower cover 660 is coupled to the outer casing 101, the sealing unit 664 is disposed to cover the lower opening of the inner casing 650. A portion of the sealing unit 664 that is in contact with the lower opening of the inner casing 650 may be formed of an elastic material for sealing. The sealing unit 664 is configured to form a bottom surface of the second storage region D2, thereby preventing collected fine dust from being introduced into one side of the driving force transmission unit 663.

The sealing unit 664 is configured to be movable in an axial direction (ie, a vertical direction) with respect to the fixed gear 663b. According to the above configuration, when the vacuum cleaner 1 is driven, even if the driving force transmission unit 663 is rotated (that is, even if the fixed gear 663b is rotated), the sealing unit 664 is configured not to rotate together with the driving force transmission unit 663. In other words, when the vacuum cleaner 1 is driven, the sealing unit 664 is coupled to the fixed gear 663b, but in a non-rotational stop state.

Specifically, when the vacuum cleaner 1 is driven in a state where the sealing unit 664 is disposed to cover the lower opening of the inner casing 650, the sealing unit 664 is lifted to the fixed gear due to the pressure difference (in the state where the vacuum pressure is applied) The upper side of 663b is tightly fixed to the inner casing 650. Therefore, the sealing unit 664 does not rotate together with the fixed gear 663b. In other words, even if the driving force transmission unit 663 rotates, the sealing unit 664 can be fixed in a state of being disposed to cover the lower opening of the inner casing 650.

However, when the driving of the vacuum cleaner 1 is suspended to release the pressure difference (in a state where the vacuum pressure is released), the sealing unit 664 is seated on the fixed gear 663b to rotate together with the fixed gear 663b.

According to the above configuration, when the lower cover 660 is coupled to the outer casing 101, the driving force transmission unit 663 is connected to the rotating member 670 of the dust collector 600, and when the dust collector 600 is coupled to the cleaner body 10, the driving force transmitting unit 663 is connected to the vacuum cleaner Drive unit 50 of body 10. Therefore, the driving force generated from the driving unit 50 is transmitted to the rotating member 670 through the driving force transmission unit 663.

At this time, the rotation of the drive motor 51 can be controlled to repeatedly generate the two-direction rotation of the rotating member 670, for example, when a repulsive force is applied in a direction opposite to the rotational direction, the drive motor 51 can be configured to face the opposite Direction rotation. This repulsive force can be generated by the pressurizing portion 677. When the pressing portion 677 is rotated in one direction to compress the dust collected on one side to a predetermined extent, the driving motor 51 rotates in the other direction to compress the dust collected on the other side due to the repulsive force generated by the compression.

When there is no (almost no) dust, the pressurizing portion 677 may be configured to strike the inner wall 601b to receive a corresponding repulsive force, or to receive a brake structure provided on the rotating path of the pressurizing portion 677 (in the figure) The repulsive force generated is not shown to rotate in the other direction.

Conversely, the controller in the cleaner body 10 can apply a control signal to the drive motor at regular intervals to change the direction of rotation of the pressurizing portion 677, thereby repeatedly generating the two-direction rotation of the pressurizing portion 677.

Due to the pressurizing portion 677, the dust collected in the first storage region D1 is collected or compressed in a predetermined region. Therefore, in the process of discharging the dust, the dust dispersion can be suppressed, and the possibility of being discharged to an inappropriate place is remarkably reduced.

35 and 36 are schematic views of the rotating member 670 of the first modified embodiment shown in Fig. 28 viewed from different directions; Fig. 37 is a plan view showing the rotating member 770 shown in Fig. 35; and Fig. 38 is a view A bottom view of the rotating member 770 as shown in FIG.

The rotating member 770 of the modified embodiment of the present invention is slightly different from the rotating member 670 of the foregoing embodiment in the shape of the protrusion.

Referring to FIGS. 35 to 38, an extension portion 771 may extend downward and be formed on the bottom surface of the rotating member 770 facing the lower cover along the rotational direction of the rotating member 770. According to the present drawing, it is shown that the extending portion 771 is formed in a circular shape on the bottom surface of the rotating member 770, corresponding to the tapered portion of the accommodating portion 770a.

The rotating member 770 is provided with a side skirt portion 772 extending downward from its upper portion in an outwardly inclined manner. According to the present drawing, the display side skirt portion 772 extends from the upper end of the rotating member 770 in the downward direction to the outer side in an inclined manner, and a gap 770b is formed on the inner side thereof. The gap 770b is formed to gradually increase from the upper portion of the side skirt portion 772 toward the lower portion. A side skirt portion 772 can be formed above the extension portion 771. In other words, the lower end of the side skirt portion 772 can be positioned above the lower end of the extension portion 771.

A projection 773 may be formed on the outer circumferential surface of the side skirt portion 772 facing the inner circumferential surface of the outer casing 701. The protruding portion 773 performs a task of letting the user intuitively know whether the rotating member 770 is rotated by viewing the rotated protruding portion 773 during the rotation of the rotating member 770.

The protrusion 773 can extend in an oblique manner along the circumference of the side skirt 772. Here, the tilt includes a linear shape slope and a spiral shape slope. The protrusion 773 can be configured with a plurality of ribs that are spaced apart from each other along the circumference of the side skirt 772. Each of the ribs may be introduced into the dust collector 700 and extended in a flowing manner along the flow direction of the air flowing along the inner circumference of the outer casing 701.

Each of the ribs may be gradually increased in extent from the side skirt portion 772 in the extending direction, and then formed in a gradually decreasing manner. In other words, the height of each rib gradually increases from the upper end of the side skirt portion 772, has a maximum protruding height at the intermediate portion thereof, and then gradually decreases toward the lower end of the side skirt portion 772. Therefore, each rib has a circular shape toward the outside.

Here, the protruding portion 773 protrudes in a shorter length than the projection of the blades 182, 282, 382 of the foregoing embodiment. Therefore, the protrusion 773 is a function of performing a function of letting the user intuitively know whether the rotating member 770 is rotated, rather than a member performing a guiding function as the blades 182, 282, 382. Therefore, it can be understood as a geometrical screw.

The rotating member 770 is provided with a roller portion 774 that collects and collects foreign matter and dust collected in the first storage region D1. The roller portion 774 may be provided with a plurality of ribs spaced apart from each other on one surface of the rotating member 770 to face the lower cover. The plurality of ribs may extend in a direction crossing the direction of rotation of the rotating member 770.

In the present embodiment, it is shown that a plurality of ribs constituting the roller portion 774 can be spaced apart from each other at a fixed interval along the inner circumference of the extending portion 771. Each of the plurality of ribs is disposed in a radial direction of the rotating member 770. According to the foregoing configuration, when the rotating member 770 is viewed from the bottom side, the plurality of ribs constituting the roller portion 774 have a radially extending shape around the rotating shaft of the rotating member 770.

The pressing portion 777 can protrude from the rotating member 770 in the radial direction. The pressurizing portion 777 is disposed to straddle the annular first storage region D1 in the radial direction, and is configured to follow the rotating member 770 The rotation rotates within the first storage area D1. The pressurizing portion 777 can be formed in a flat shape. The dust collected in the first storage area D1 is moved by the rotation of the pressurizing portion 777 and collected in an inner wall 701b. When a lot of dust is accumulated, the dust is pressurized and compressed by the pressurizing portion 777.

39 and 40 are schematic views of the rotating member 670 of the second modified embodiment shown in Fig. 28 viewed from different directions; Fig. 41 is a plan view showing the rotating member 870 shown in Fig. 39; and Fig. 42 is a view A bottom view of the rotating member 870 as shown in FIG.

Referring to FIGS. 39 to 42, one side skirt portion 872 is disposed at an upper portion of the rotating member 870. The side skirt portion 872 has a shape in which a first side skirt 872a and a second side skirt 872b having a trapezoidal shape are connected in a stepwise manner by a connecting portion 872c, and are repeatedly disposed along the circumference of the rotating member 870. The first side skirt 872a and the second side skirt 872b can have the same shape and size.

The first side skirt 872a and the second side skirt 872b gradually extend to the outer side in an inclined manner from the upper portion toward the lower portion, and are formed to gradually move away from the rotating shaft along any one of the rotational directions of the rotating member 870. Therefore, the gap between the first side skirt 872a and the second side skirt 872b gradually increases from the upper portion toward the lower portion.

The connecting portion 872c is configured to connect the first side skirt 872a and the second side skirt 872b. The connecting portion 872c extends inwardly from the first side skirt 872a and is coupled to the second side skirt 872b. The connecting portion 872c has a shape that gradually increases the area from the upper portion toward the lower portion.

When the side skirt portion 872 is configured to be a combination of the first side skirt 872a, the connecting portion 872c, and the second side skirt 872b, the side skirt portion 872 may have a wave shape. Since the side skirt portion 872 has a wave shape in appearance, during rotation of the rotating member 870, the user intuitively knows whether the rotating member 870 is rotated by viewing the rotated side skirt portion 872.

From the morphological point of view, the side skirt portion 872 can also be referred to as a protruding array portion. The protruding array portion is gradually extended away from the rotating shaft by repeatedly arranging a first portion (corresponding to the first side skirt 872a and the second side skirt 872b having the same shape and size) in any one of the rotational directions of the rotating member 870 And a second portion (corresponding to the connecting portion 872c) is formed to extend from the first portion toward the rotating shaft along the circumference of the rotating member 870.

As described above, the side skirt portion 872 can also be described by the configuration of the protruding array portion. For example, the first portion may gradually extend outwardly from the upper portion toward the lower portion in an inclined manner, and the second portion may gradually increase the area from the upper portion toward the lower portion.

Because the side skirt portion 872 and the outer casing (not shown in the drawings, refer to the component number 601 of FIG. 27) The gap between the portions gradually decreases from the upper portion toward the lower portion of the side skirt portion 872, and foreign matter and dust backflow can be restricted.

According to the present drawing, it is shown that the first side skirt 872a and the second side skirt 872b extend downward from the upper end of the rotating member 870 in an outwardly inclined manner to form an inner wall of the receiving portion 870a with the first side skirt 872a and A gap 870b is formed between the second side skirts 872b.

Further, during the rotation of the rotating member 870, the side skirt portion 872 rolls the foreign matter and dust collected to be collected in the first storage region D1. Specifically, the lower end of the side skirt portion 872 is formed in a shape in which the bottom faces 872a', 872c', 872b' formed by the first side skirt 872a, the connecting portion 872c, and the second side skirt 872b are repeatedly connected.

Here, the bottom faces 872a', 872b' of the first side skirt 872a and the second side skirt 872b have a shape substantially following the rotational direction of the rotating member 870, but the bottom surface 872c' of the connecting portion 872c has a rotational direction with the rotating member 870 Cross (substantially vertical) shape. The bottom surface 872c' of the connecting portion 872c is disposed to be spaced apart from the rotating member 870 at a fixed interval.

Therefore, when the rotating member 870 is rotated in any one of the rotational directions R1, the bottom surface 872c' of the connecting portion 872c is located outside the bottom surface 872b' of the second side skirt 872b, and is foreign matter collected in the first storage area D1. Dust contacts to apply a rotational force. The foreign matter and dust are repeatedly brought into contact with the bottom surface 872c' of the connecting portion 872c during the rotation of the rotating member 870. Therefore, the foreign matter and the dust roll in the annular first storage area D1, and according to the rotation direction of the rotating member 870, the foreign matter and the dust converge to integrate into a substantially spherical state.

Conversely, when the rotating member 870 is rotated in the other rotational direction R2 (refer to FIG. 42, when the rotating member 870 is rotated in the counterclockwise direction), the bottom surface 872c' of the connecting portion 872c is formed by the first side skirt 872a. The inside of the bottom surface 872a', therefore, almost no rotational force is applied to the foreign matter and dust collected in the first storage area D1. Therefore, when the rotating member 870 is rotated in the other rotational direction, the rolling of foreign matter and dust is restricted to a predetermined extent.

Therefore, even if the rotating member 870 is rotated in two directions, the foreign matter and dust collected in the first storage region D1 can be rolled only in any one of the rotational directions to provide the directionality of the rolling. When the accumulated foreign matter and dust also roll in the opposite direction, the accumulated foreign matter and dust may be loosened, but this phenomenon can be prevented when the rolling directivity is provided via the structure.

The scrolling function will be described below with the structure of the protruding array portion. When the rotating member 870 is rotated in any one of the rotational directions R1, the bottom surface of the second portion is disposed to face the bottom cover covering the lower opening of the outer casing, and is configured to be in contact with foreign matter and dust collected in the first storage area D1, To apply Rotational force. The bottom surface of the second portion is repeatedly disposed along the circumference of the rotating member 870 to come into contact with foreign matter and dust collected in the foreign matter-dust storage region during the rotation of the rotating member 870.

On the other hand, when the rotating member 870 is rotated in the other rotational direction R2, the rolling of foreign matter and dust collected in the foreign matter-dust storage area is restricted by the first portion disposed in front of the second portion.

The pressing portion 877 can protrude from the rotating member 870 in the radial direction. The pressurizing portion 877 may be configured to straddle the annular first storage region D1 in the radial direction and configured to rotate within the first storage region D1 as the rotating member 870 rotates. The pressurizing portion 877 may be formed in a flat plate shape. The dust collected in the first storage area D1 can be moved by the rotation of the pressurizing portion 877 and collected on the inner wall of the outer casing (not shown), and when a lot of dust is accumulated, the dust is applied by the pressurizing portion 877 Press and compress.

100‧‧‧dust collector

101‧‧‧ Shell

101a‧‧‧Reflow restriction ribs

101b‧‧‧ inner wall

110‧‧‧First cyclone separator

111‧‧‧Front frame

111a‧‧‧Support

111b‧‧‧ bottom

112‧‧‧Screen filter

120‧‧‧Second cyclone separator

120a‧‧ Entrance Department

120b‧‧‧Export

121‧‧‧Shell

122‧‧‧Vortex seek tube

122a‧‧‧Friction

123‧‧‧Guiding blades

130‧‧‧Cover components

130a‧‧‧Connected holes

140‧‧‧Upper cover

140a‧‧‧Inhalation guide

140a’‧‧ Entrance

140b‧‧‧Draining guide

140b”‧‧‧Export

150‧‧‧ inner shell

160‧‧‧Under the cover

161‧‧‧ Hinges

162‧‧‧Locking members

163‧‧‧Driving force transfer unit

163a‧‧‧ driven gear

163b‧‧‧Fixed components

164‧‧‧ Sealing unit

170‧‧‧ Pressurizing unit

171‧‧‧Rotating Department

172‧‧‧ Pressurization

172a‧‧‧Ventinel

180‧‧‧Guide unit

181‧‧‧Base

182‧‧‧ leaves

D1‧‧‧First storage area

D2‧‧‧Second storage area

S1‧‧‧ first space

S2‧‧‧Second space

Claims (20)

A vacuum cleaner comprising: a cleaner body; and a dust collector disposed in the cleaner body, wherein the dust collector comprises: a first cyclone disposed in an outer casing to introduce air from the outside Filtering foreign matter and dust, and introducing air into which foreign matter and dust have been filtered; a second cyclone is housed in the first cyclone to be introduced into the first cyclone Fine dust is separated from the air; and a rotating member is disposed on the lower side of the first cyclonic separator and configured to be rotatable to define a first storage region configured to collect Foreign matter and dust filtered by the first cyclone between the rotating member and the outer casing, and wherein the rotating member is provided with a roller portion disposed to face a lower cover covering a lower opening of the outer casing, And during the rotation of the rotating member, the roller portion comes into contact with foreign matter and dust collected in the first storage region to apply a rotational force. A vacuum cleaner according to claim 1, wherein the roller portion includes a plurality of ribs disposed to be spaced apart from each other along a rotational direction of the rotating member, and sequentially collected during rotation of the rotating member Foreign matter in the first storage area is in contact with dust. The vacuum cleaner of claim 2, wherein each of the plurality of ribs extends in a radial direction at a predetermined interval. A vacuum cleaner according to claim 2, wherein an extension portion is formed on a bottom surface of the rotating member facing the lower cover along a rotation direction of the rotating member to extend downward, and the plurality of strips The ribs are arranged to be spaced apart from each other along the inner circumference of the extension. A vacuum cleaner according to claim 1, wherein the rotating member is further provided with a side skirt extending downward from an upper portion thereof in an outwardly inclined manner. A vacuum cleaner according to claim 5, wherein a projection or a recess is formed to surround the side skirt. A vacuum cleaner according to claim 6, wherein the projection or the recess is formed to extend obliquely along a circumference of the side skirt. A vacuum cleaner according to claim 6, wherein the projection or the recess is provided as a plurality of dot protrusions or grooves spaced at regular intervals. A vacuum cleaner according to claim 1, wherein a driving force transmission unit is mounted on the lower cover, and the driving force transmission unit is coupled to a driving unit of the cleaner body and the rotating member to transmit a rotation. Driving force to the rotating member. A vacuum cleaner according to claim 9, wherein the driving force transmission unit comprises: a driven gear exposed from a lower portion of the lower cover, and when the dust collector is mounted on the cleaner body, a driven gear coupled to a drive gear of the drive unit; and a fixed gear coupled to the driven gear at an upper portion of the lower cover, and when the lower cover is mounted to cover the lower opening of the outer casing, A fixed gear is fixed to the rotating member. A vacuum cleaner according to claim 10, wherein the fixed gear includes: a gear portion that is disposed on the rotating member when the lower cover is mounted to cover the lower opening of the outer casing a fixing protrusion on the lower inner circumference; and a sealing portion disposed below the gear portion to extend in an annular shape along an outer circumference of the fixed gear, and the sealing portion and a lower inner circumferential surface of the rotating member Close contact. A vacuum cleaner according to claim 10, further comprising: an inner casing disposed at a lower portion of the first cyclone to accommodate a row of outlets of the second cyclone and formed for collection via a second storage area of fine dust discharged from the discharge port, and the inner casing is housed in a receiving portion of the rotating member, wherein a sealing unit is mounted on the fixed gear, and the lower cover is installed to cover the outer casing The sealing unit is disposed to cover a lower opening of the inner casing to form a bottom surface of the second storage area. A vacuum cleaner according to claim 12, wherein, during operation of the vacuum cleaner, the sealing unit is configured to be lifted to an upper side of the fixed gear due to a pressure difference, so that the sealing unit does not rotate. A vacuum cleaner according to claim 1, further comprising: an inner casing disposed at a lower portion of the first cyclone to accommodate a row of outlets of the second cyclone and formed for collection via a second storage area for the fine dust discharged from the discharge port, the inner casing being received in a receiving portion of the rotating member; and a fixing ring mounted to surround the lower end portion of the inner casing, the inner casing being accommodated in the inner casing In the state in the accommodating portion, a locking projection that protrudes from the inner circumference of the lower end portion of the rotating member is supported. A vacuum cleaner according to claim 1, wherein the rotating member is provided with a pressing portion that protrudes from the rotating member in a radial direction and is disposed to be in a radial direction The first storage area intersects and is configured to rotate within the first storage area in accordance with rotation of the rotating member. A vacuum cleaner comprising: a cleaner body; and a dust collector disposed in the cleaner body, wherein the dust collector comprises: a first cyclone disposed in an outer casing to introduce air from the outside Filtering foreign matter and dust, and introducing air into which foreign matter and dust have been filtered; a second cyclone is housed in the first cyclone to be introduced into the first cyclone Separating fine dust from the air; and a rotating member disposed on a lower side of the first cyclonic separator and configured to be rotatable to define a first storage region configured to collect a foreign matter and dust filtered by the first cyclone between the rotating member and the outer casing, and wherein the rotating member is provided with a plurality of ribs disposed to face a lower cover covering a lower opening of the outer casing And during the rotation of the rotating member, the plurality of ribs are disposed to be spaced apart from each other along a rotational direction of the rotating member. A vacuum cleaner according to claim 16, wherein each of the plurality of ribs extends in a radial direction at a predetermined interval. A vacuum cleaner according to claim 17, wherein an extension portion is formed on a bottom surface of the rotating member facing the lower cover along a rotation direction of the rotating member to extend downward, and the plurality of strips The ribs are arranged to be spaced apart from each other along the inner circumference of the extension. A vacuum cleaner according to claim 17, wherein the rotating member is further provided with a side skirt extending downward from an upper portion thereof in an outwardly inclined manner. A vacuum cleaner according to claim 19, wherein a projection or a recess is formed to surround the side skirt.