KR100444320B1 - Cyclone type vacuum cleaner - Google Patents

Abstract

Cyclone vacuum cleaner is disclosed. The present invention provides a dust collecting apparatus including a dust collecting chamber having a suction port and a load driving chamber for sucking air into the dust collecting chamber through the suction opening; A dust collecting part in the dust collecting chamber having a predetermined inclination angle with respect to the suction port, and having a plurality of filters sequentially disposed along the flow direction of the air; And a guide duct for guiding and discharging air passing through the dust collecting unit to the load driving chamber. Thereby, dust can be effectively collected and dusted in the state which removed the dust bag.

Description

Cyclone type vacuum cleaner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly, to a cyclone vacuum cleaner capable of eliminating dust bags and allowing the dust contained in the air sucked into the inlet to be collected by centrifugal separation.

Vacuum cleaners generally have a dust bag housed interchangeably in a dust chamber. The dust-containing air sucked through the inlet passes through the dust bag. At this time, the dust does not pass through the fine passage hole formed in the dust bag and is collected inside, and only air flows out.

By the way, in such a conventional vacuum cleaner, when the amount of dust collected in the dust bag increases, the suction force for air suction is not only lowered, but also causes an overload of the drive motor, and thus it should be replaced regularly. Therefore, a so-called cyclone vacuum cleaner has been proposed to improve the inconvenience caused by frequent replacement of the dust bag and to increase the filtering effect.

1 is a perspective view of a conventional cyclone vacuum cleaner, Figure 2 is a partially enlarged cross-sectional view of FIG. The conventional cyclone vacuum cleaner 1 is a cleaning main body 3 having an inlet 11, a dust container 21 detachably coupled to the front surface of the cleaning main body 3, and an expansion and contraction coupled to the inlet 11. It consists of the pipe | tube 7 and the brush 15 couple | bonded with the front-end | tip part of the expansion-contraction pipe | tube 7. The cleaning main body 3 has a suction motor 13 for sucking external air into the dust container 21 through the suction port 11, and an opening / closing cover for rotating and opening the opening of the dust container 21 coupled to the front surface. Has (5).

Inlet 11 is formed in the front region of the opening and closing cover (5). In the lower region of the opening / closing cover 5, a guide duct 17 for guiding the air discharged from the dust container 21 to the passage hole 6 of the load driving chamber 4 is provided. The guide duct 17 rotates integrally with the opening / closing cover 5 so that the guide duct 17 can be fastened to the upper surface of the dust container 21, and at this time, the inlet 11 is an exhaust port 26 of the filter 25. )

The front of the load drive chamber 4 is formed with a through hole (6) for passing the air discharged from the dust container (21). A discharge port 13 for discharging air in the load driving chamber 4 is formed on the rear surface of the load driving chamber 4.

The dust container 21 is comprised by the container body 22 and the container cover 23 which covers the upper part of the container body 22. As shown in FIG. An air hole is formed in the plate surface of the container cover 23 to which the inlet 16 of the guide duct 17 is coupled. The filter 25 is disposed in the upper region of the dust container 21, and is coupled to the bracket 27 protruding downward from the plate surface of the container cover 23. The filter 25 has a plurality of intake holes formed in the circumferential surface.

On the other hand, the expansion pipe (7) has a corrugated pipe (9) that extends and contracts in the longitudinal direction and an extension pipe (8) for engaging with the corrugated pipe (9). The hand grip 10 is formed in the mutual coupling area | region of these corrugated pipe 9 and the extension pipe 8. As shown in FIG. The brush 15 is coupled to the end of the extension pipe 8 to contact the floorboard or carpet in the room. The bottom surface of the brush 15 is formed with an inlet (not shown) extending along the longitudinal direction thereof.

With this configuration, when power is applied, the rotor of the suction motor 3 rotates at high speed. At this time, the impeller fixed to the shaft of the suction motor 3 also rotates at the same speed, forcibly circulating the air in the load drive chamber 4. As a result, the inside of the load driving chamber 4 is in a high vacuum state, and a high pressure difference is generated from the outside thereof, so that air is sucked in through the inlet of the brush 15. At this time, when the brush 15 is brought into contact with the surface to be cleaned, for example, a carpet or a sheet, air containing dust is sucked in through the inlet of the brush 15.

The dust-containing air flowing through the inlet 11 rotates along the inner circumference of the dust container 21 to form a downward vortex air stream. At this time, the dust contained in the air is separated from the air by the centrifugal force and falls. On the other hand, the downward vortex airflow piggybacks on the airflow rising from the bottom surface, and flows into the guide duct 17 through the intake hole formed in the filter 25. Some of the dust falling to the bottom surface rises along the rising airflow, but this rising dust does not pass through the intake hole of the filter 25 and falls again.

On the other hand, the air passing through the filter 25 in the dust container 21 is clean air from which dust is removed. This air is guided along the flow path of the guide duct 17 and flows into the load driving chamber 4 through the passage hole 6. The air introduced into the load driving chamber 4 is discharged to the outside through the inlet 15 through the suction motor 13.

On the other hand, reference numeral 28 is a wheel for the movement of the cleaning body (3), 29 is a cord that can be withdrawn retracted in the lower area of the cleaning body (3).

By the way, in the conventional cyclone cleaner 1, a relatively expensive single filter 25 is installed in the dust container 21 to increase the manufacturing cost, and such a filter 25 may be used for dust having a relatively fine particle size. There is a problem that cannot be filtered. In addition, the dust collected in the dust container 21 blocks the intake hole of the filter 25 as time passes, thereby lowering the filtering efficiency. Therefore, dust to be periodically filtered should be removed. The troublesome work has to be done. On the other hand, because of the residue remaining in the intake hole of the filter 25, the relatively expensive filter 25 must be replaced frequently, thereby increasing the maintenance cost.

The conventional cyclone cleaner 1 also separates and stores the expansion pipe from the cleaning main body. At this time, the suction port protruding to the outside is likely to be worn or damaged, and foreign matters are introduced into the dust through the open suction port. do.

Accordingly, an object of the present invention is to provide a cyclone vacuum cleaner which can be manufactured relatively inexpensively and effectively separates and dusts dust from sucked dust-containing air in view of these problems in the related art.

Another object of the present invention is to provide a cyclone vacuum cleaner which is easy to clean the filter and does not need to be replaced relatively frequently.

Still another object of the present invention is to provide a vacuum cleaner which can reduce the risk of damage to the suction port and can open and close the suction port.

1 is a perspective view of a conventional cyclone vacuum cleaner,

FIG. 2 is a partially enlarged cross-sectional view of FIG. 1;

3 is a perspective view of a cyclone vacuum cleaner according to the present invention;

4 is a cross-sectional view of FIG.

FIG. 5 is a partially enlarged view of FIG. 4 and illustrates a suction port area in detail; FIG.

FIG. 6 is a partially enlarged view of FIG. 4 and illustrates a dust collecting unit in detail. FIG.

7 is an exploded perspective view of the dust collecting unit of 6;

8 is a perspective view of an external filter according to another embodiment of the present invention;

9 is a perspective view of an external filter according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

7: stretch tube 15: brush

28: wheel 33: basic cleaning

34: suction port 35: partition member

36: air passage 37: intake blocking plate

38: knob 41: dust collecting chamber

43: opening and closing cover 47: support flange

48: dust collecting case accommodation groove 51: load driving room

53: suction motor 55: outlet

61: guide duct 63: air inlet

67: flange portion 69: skirt portion

71: dust collecting unit 72: intake vent

73: dust collecting case 75: internal filter

81, 95: external filter 91: dust removal plate

According to the present invention, there is provided a cleaner, comprising: a cleaning body for forming a dust collecting chamber having a suction port and a load driving chamber for sucking air into the dust collecting chamber through the suction port; A dust collecting part in the dust collecting chamber having a predetermined inclination angle with respect to the suction port, and having a plurality of filters sequentially disposed along the flow direction of the air; And a guide duct for guiding and discharging the air passing through the dust collecting unit to the load driving chamber.

Here, the dust collecting unit, a dust collecting case having an intake port and an upward opening corresponding to the suction port; A cylindrical body fixed to an upper region of the dust collecting case, the inner filter having a plurality of intake holes and an upward exhaust hole formed in a circumferential surface thereof; And an outer filter fixed to the outer side of the inner filter to surround the circumferential surface of the inner filter.

In this case, the outer filter may be formed along the circumferential direction, or a plurality of protrusions extending radially with respect to the reference circumferential surface to increase the cross-sectional area, or may form a spiral groove along the circumferential surface.

The outer filter may further include an outer filter body having a plurality of intake holes formed on a circumferential surface thereof; And it may be configured to include a filter attached to the outer surface of the outer filter body, in this case, coupled to the outer surface of the filter in the circumferential direction, the disk-shaped dust removal plate that can flow along the longitudinal direction of the filter further If included, the dust adsorbed on the outer surface of the filter can be easily removed.

On the other hand, the inner filter fixing means, the recessed gripping groove formed on the inner circumference of the air inlet of the guide duct; And a catching jaw engaged with the biting groove at the outer periphery of the exhaust hole of the inner filter, wherein the outer filter fixing means includes a flange portion extending radially outward from the air inlet of the guide duct. A plurality of downward locking grooves formed at predetermined intervals along the plate surface; And a plurality of coupling protrusions protruding from the edge of the upward opening of the outer filter and coupled to the plurality of locking grooves.

In addition, the inner filter and the outer filter can be integrally formed simply with a predetermined breathable material.

On the other hand, the guide duct is integrally formed on the upper surface of the flange portion of the inner filter, it may be configured to have a duct inlet in communication with the exhaust hole of the inner filter.

And, the cleaning base further includes an opening and closing cover for opening and closing the upper part of the dust chamber; The flange portion of the inner filter can be detachably configured in the lower region of the opening and closing cover.

In addition, it is preferable to further include a suction port blocking member which is installed to reciprocate the open position and the closed position of the suction port.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. At this time, the same code | symbol is used about the same structure and name as the above.

3 is a perspective view of a cyclone vacuum cleaner according to the present invention, Figure 4 is a cross-sectional view of FIG. As can be seen from these figures, the present vacuum cleaner 31 includes a cleaning main body 33 having an inlet 34, an expansion tube 7 coupled to an inlet 34 of the cleaning main body 33, and expansion and contraction. It consists of the brush 15 couple | bonded with the front-end | tip part of the pipe | tube 7. The interior of the cleaning body 33 is divided by the partition member 35 to form a dust collecting chamber 41 and a load driving chamber 51. The partition member 35 is provided with an air passage hole 36 for communicating the dust collecting chamber 41 and the load driving chamber 51 with each other.

A suction port 34 is formed on the front surface of the dust collecting chamber 41, whereby the dust collecting chamber 41 is disposed upstream of the air flow with respect to the load driving chamber 51. A user grip portion 39 is formed in the lower region of the suction port 34. An opening is formed in the upper part of the dust collecting chamber 41, that is, the front region plate surface of the cleaning main body 33, and an opening / closing cover 43 capable of rotating and opening the dust collecting chamber 41 is provided in the front of the opening.

On the bottom of the opening / closing cover 43, as shown in the partially enlarged view of FIG. 5, a suction port blocking plate 37 for slidingly opening and closing the suction port 34 is provided. To this end, a guide rail (not shown) is formed at the bottom of the opening / closing cover 43 along the sliding direction of the inlet blocking plate 37. The suction port blocking plate 37 is preferably made of a material that can be bent along the plate surface direction, and has a user operation knob 38 protruding upward from the plate surface. The knob 38 is exposed to the outside through a knob guide groove formed along the sliding direction of the suction port blocking plate 37 on the plate surface of the opening / closing cover 43.

On the other hand, in the dust collecting chamber 41, a dust separating portion 71 for separating and collecting dust from the dust-containing air sucked through the suction port 34 is housed. The dust separation unit 71 is retractable by opening the opening and closing cover that can be rotated and opened on the upper part of the dust collecting chamber. The dust separator 71 will be described later in detail with reference to FIG. 6. In the upper region of the dust collecting chamber 41, a guide duct 61 for guiding the dust separated in the dust collecting chamber 41 to the load driving chamber 51 is provided. The air inlet 63 of the guide duct 61 communicates with the dust separator 71, and the air outlet 65 corresponds to the air through hole 36 formed in the partition member 35.

On the back of the load drive chamber 51, an outlet 55 for discharging air in the load drive chamber 51 to the outside is formed. In the lower region of the outlet 55, rolling wheels 28 are provided. In addition, the load driving chamber 51 has a suction motor 53 for sucking outside air through the suction port 34 of the dust collecting chamber 41.

In the drawing, reference numeral 29, which is not described, is a cord which can be withdrawn and withdrawn in the lower region of the cleaning body 33.

6 is a partially enlarged view of FIG. 4, which illustrates a dust collecting unit in detail, and FIG. 7 is an exploded perspective view of FIG. 6. As can be seen in these figures, the dust collecting part 71 surrounds the dust collecting case 73 and the outside of the inner filter 75 and the inner filter 75 provided in the upper region of the dust collecting case 73. It consists of an external filter 81. The dust collecting case 73 has a cylindrical shape opened upwardly and has an inlet 72 corresponding to the suction port 34 of the cleaning base 33. The inlet port 72 forms a downward inclination angle with respect to the body of the dust collecting case 73 in an oblique direction.

The dust collecting case 73 is mounted on the support flange portion 47 extending from the lower region of the partition member 35. A dust collecting case accommodating groove 48 for accommodating the dust collecting case 73 is formed on the plate surface of the support flange portion 47. As a result, the flow of the dust collecting case 73 seated on the support flange portion 47 is dustproof. The guide duct 61 is coupled to the upper region of the dust collecting case 73.

Guide duct 73 has a flange portion 67 extending radially from the edge of the air inlet 63, the flange portion 67 serves as the upper cover of the dust collecting case (73). The skirt portion 69 which protrudes downward is formed in the edge part of the flange part 67, and this skirt part 69 accommodates the opening edge part of the dust collection case 73. As shown in FIG. As a result, the guide duct 73 may be coupled to the upper portion of the dust collecting case 73.

The inner filter 75 has a cylindrical shape, and a plurality of intake holes 77 are formed on the outer circumferential surface. In addition, an exhaust hole 78 corresponding to the air inlet 63 of the guide duct 61 is formed on the upper surface. In the outer periphery of the exhaust hole 78, a chuck 79 protruding in the radial direction is formed. On the other hand, at the inner circumference of the air inlet 63 of the guide duct 61 is formed a gutter groove 66 recessed along the circumferential direction. By interlocking of the bite jaw 79 and the bite groove 66, the internal filter 75 can be arranged in the upper region of the dust collecting case 73.

The outer filter 81 includes a cylindrical outer filter main body 83 and a filter 89 attached to the outer surface of the outer filter main body 83. Intake holes 85 are formed on the outer circumferential surface of the outer filter body 83, and the openings are formed on the upper surface thereof. The filter 89 attached to the outer circumferential surface of the outer filter 83 to block the intake hole 85 is formed of a breathable material. The outer filter main body 83 also has a plurality of engaging projections 87 protruding radially at predetermined intervals along the edges of the upward opening. On the other hand, on the plate surface of the flange portion 67 of the guide duct 61, a plurality of locking grooves 68 for receiving and fixing these locking projections 87 are formed. As a result, the external filter 83 may be fixed to surround the internal filter 75 in the dust collecting case 73.

As illustrated in FIG. 8, a disc-shaped dust removing plate 91 may be coupled to the external filter 81. Dust removal plate 91 has a receiving groove having a size enough to accommodate the outer periphery of the outer filter 81, it can be easily produced by plastic injection. The dust removing plate 91 is movable along the longitudinal direction of the outer filter 81 in a state where the outer filter 81 is accommodated in the receiving groove. At this time, dust and dirt stuck to the external filter 81 are removed.

The external filter 81 may also be embodied in various forms of embodiments in order to increase the filtering effect. 9 is a perspective view of an external filter according to another embodiment of the present invention. In the external filter 95 according to the present embodiment, as can be seen in the figure, a plurality of protrusions 97 extending radially with respect to the reference circumferential surface are formed along the circumferential direction. These protrusions 97 extend the cross-sectional area of the outer filter 95, whereby the filtering effect can be increased.

Meanwhile, the above-described and illustrated external filters 81 and 95 may be formed with spiral grooves (not shown) along the outer circumferential surface thereof. Such grooves serve to increase the centrifugal force by more effectively forming the air flowing through the suction port 72 of the dust collecting case 73 into the downward vortex air stream. Thereby, the dust mixed in the air can be effectively separated.

In addition, in the above-mentioned and illustrated embodiment, what demonstrated the manufacture of the external filter 81 and the internal filter 75 separately was demonstrated. However, the external filter 81 and the internal filter 75 can be injection molded simply and integrally, and at this time, it is preferable to constitute a predetermined ventilation material. Such an integrally injection molded filter can also be easily detachably coupled by forming a locking portion on the flange portion 67 of the guide duct 61.

On the other hand, the expansion tube 7 has the same configuration as described with reference to FIG. Therefore, the description thereof is replaced by the above.

With this configuration, in the vacuum cleaner 31, the suction motor 53 is driven when power is applied from the outside. Then, the air in the cleaning body 33 is forcedly circulated, whereby the inside of the cleaning body 33 is in a high vacuum state. In this case, a high pressure difference occurs between the inside of the cleaning body 33 and the outside thereof, so that air is sucked in through the inlet of the brush 15. At this time, when the brush 15 is brought into contact with the surface to be cleaned, for example, a carpet or a sheet, air containing dust is sucked in through the inlet of the brush 15.

As such, the dust-containing air to be sucked passes through the expansion pipe 7 and then flows into the dust collecting case 73 through the suction port 34. At this time, air is introduced into the dust collecting case 73 in an oblique direction by the downward inclination angle of the intake opening 72 formed in the dust collecting case 73, whereby it falls downward along the inner circumference of the dust collecting case 73. To form a vortex air stream. At this time, dust having a relatively large particle size is separated from the vortex air stream by centrifugal force. The separated dust falls to the lower region of the dust collecting case 73 and is collected.

On the other hand, the falling downward vortex airflow starts an inverted upward motion at the bottom surface of the dust collecting case 73, thereby forming an upward airflow having a relatively small rotation radius. Thus, after passing through the filter 89 attached to the circumferential surface of the outer filter 81, it is introduced into the guide duct 61 through the inner filter 75. At this time, piggybacking on the rise of air in the dust collecting case 73 also raises relatively large dust collected on the bottom surface. However, most of the dust does not pass through the filter 89 attached to the outer filter 81, while the dust passes through the outer filter 81 and the dust does not pass through the intake hole 77 of the inner filter 75. As a result, the air that has passed through the outer filter 81 and the inner filter 75, that is, the secondary filtered air is formed of clean air containing almost no dust.

The air introduced into the guide duct 61 is guided along the flow path, and flows into the load driving chamber 51 through the air passage hole 36 of the partition member 35. At this time, the air passing through the air passage hole 36 is clean air from which dust is removed, and this air is discharged to the outside through the outlet 55 through the suction motor 53.

As described above, according to the present invention, the dust and the like contained in the air sucked into the dust collecting chamber 41 through the suction port 34 are separated and collected in the dust collecting case 73 by the centrifugal separation method. Since the filter 81 and the inner filter 75 are separated and collected sequentially in the second order according to the size of the particles, the filtering effect can be greatly enhanced.

On the other hand, in order to discard the dust collected in the dust collecting case 73, the user opens and closes the opening and closing cover 43 of the cleaning body 73. Then, the upper part of the dust collecting chamber 41 is opened, and the dust collecting unit 71 is exposed to the outside, and at this time, the user simply pulls out the dust collecting unit 71 to discard the collected dust in the dust collecting case 73. Can be. Then, the dust collector 71 can be easily withdrawn in the dust collecting chamber 41 in the reverse order.

Meanwhile, in the above-described and illustrated embodiments, the guide duct 61 may be configured to be coupled to the lower portion of the opening / closing cover 43. To this end, it is possible to form a locking portion on the flange portion 67 of the guide duct 61 and the lower surface of the opening and closing cover 43 opposite thereto. Then, the guide duct 61 is rotated and opened integrally when the opening and closing cover 43 is rotated, whereby the upper part of the dust collecting case 73 can be opened. At this time, the user can easily withdraw only the dust collecting case 73, to discard the dust collected in the interior. In addition, the guide duct 61 integrally formed at the lower portion of the opening / closing cover 43 may be configured.

As described above, according to the present invention, there is provided a cyclone vacuum cleaner that can be manufactured relatively inexpensively by removing the dust bag, and can effectively separate and dust the dust from the dust-containing air to be sucked. The cyclone vacuum cleaner is easy to clean the filter and does not need to be replaced relatively often.

The vacuum cleaner can also open and close the suction port without fear of damaging the suction port.

Claims (12)

In the vacuum cleaner, A cleaning main body forming a dust collecting chamber having a suction port and a load driving chamber for sucking air into the dust collecting chamber through the suction port; A dust collecting part in the dust collecting chamber having a predetermined inclination angle with respect to the suction port, and having a plurality of filters sequentially disposed along the flow direction of the air; And And a guide duct for guiding and discharging air passing through the dust collecting unit to the load driving chamber. The dust collecting unit and the guide duct is modular, characterized in that the cleaner installed detachably to the cleaning body. The method of claim 1, The dust collector, A dust collecting case having an inlet and an upward opening corresponding to the inlet; A cylindrical body fixed to an upper region of the dust collecting case, the inner filter having a plurality of intake holes and an upward exhaust hole formed in a circumferential surface thereof; And And an outer filter fixed to surround the circumferential surface of the inner filter on an outer side of the inner filter. The method of claim 2, And a plurality of protrusions extending in the radial direction with respect to the reference circumferential surface and widening the cross-sectional area in the circumferential direction. The method of claim 2 or 3, The outer filter, a cleaner, characterized in that the spiral groove portion is formed along the circumferential surface. The method of claim 2 or 3, The external filter, An outer filter body having a plurality of intake holes formed on a circumferential surface thereof; And And a filter attached to an outer surface of the outer filter body. The method of claim 5, And a disk-shaped dust removing plate coupled to the outer surface of the filter along the circumferential direction and movable along the longitudinal direction of the filter. The method of claim 2, The inner filter fixing means, A recessed gutter groove formed at an inner circumference of the air inlet of the guide duct; And And a bleeding jaw engaged with the bleeding groove at an outer circumference of the exhaust hole of the inner filter. The method of claim 2, The external filter fixing means, A plurality of downward locking grooves formed at predetermined intervals along a plate surface of the flange portion extending radially outward from the air inlet of the guide duct; And And a plurality of engaging projections protruding from the edge of the upward opening of the outer filter and engaging with the plurality of locking grooves. The method according to claim 1 or 2, And the inner filter and the outer filter are integrally formed with a predetermined breathable material. The method of claim 2, The guide duct is integrally formed on the upper surface of the flange portion of the inner filter, characterized in that having a duct inlet in communication with the exhaust hole of the inner filter. The method of claim 10, The cleaning main body further includes an opening and closing cover to open and close the upper part of the dust collecting chamber; And a flange part of the inner filter is detachable from a lower area of the opening and closing cover. The method of claim 1, And a suction port blocking member installed to reciprocate the open and closed positions of the suction port.