JP2004249068A - Cyclone dust collecting device of vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cyclone dust collecting device of a vacuum cleaner capable of automatically dusting out dust attached to a grill assembly. <P>SOLUTION: The cyclone dust collecting device of the vacuum cleaner is mounted on a dust collecting compartment communicating with an intake passage and an exhaust passage of a cleaner body and is structured to centrifuge dust and dirt from air sucked through a suction brush via the intake passage. The cyclone dust collecting device comprises a cylindrical cyclone body fixed to an upper part of the dust collection compartment with an air intake and an air outlet corresponding to the intake passage and the exhaust passage respectively, a dust cup detachably mounted on the lower side of the cyclone body for collecting dust and dirt centrifuged by the cyclone body, a filter assembly mounted under the cyclone body, having a turbine filter for preventing the reverse flow of dust and dirt while rotating by the air stream moving to the air outlet by the dust cup, and a duster member for automatically dusting out dust attached to the turbine filter. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vacuum cleaner, and more particularly, to a cyclone dust collecting apparatus for a vacuum cleaner having an automatic dust hitting structure.
[0002]
[Prior art]
A typical example of the cyclone dust collecting apparatus is disclosed in Korean Patent Application No. 1999-20704 filed by the present applicant, and its schematic structure is shown in FIG.
[0003]
One example of such a cyclone dust collector is shown in FIG. The cyclone dust collecting apparatus includes a cyclone body 20, a dust cup 30, and a grill assembly 40.
[0004]
The cyclone body 20 is separately formed into upper and lower body portions 21 and 22, and the upper and lower body portions 21 and 22 are connected by a plurality of screws 23. A first connecting pipe 24 connected to the suction-port-side extension pipe 1a of the cleaner and an air inlet 25 communicating with the first connecting pipe 24 are formed in the lower main body 22. A second connecting pipe 26 connected to the main body side extension pipe 1b of the cleaner and an exhaust port 27 connected to the second connecting pipe 26 are formed in the upper main body 21. The air sucked through the air inlet 25 is sucked in the oblique direction. Thus, a swirling airflow is formed inside the cyclone body 20 and the dust cup 30, and dust contained in the air is separated from the air by the swirling airflow by centrifugal force.
[0005]
The dust cup 30 is detachably connected to the cyclone main body 20 and forms a swirling airflow for the sucked air in cooperation with the cyclone main body 20 and collects dust separated from the air by the swirling airflow.
[0006]
The grill assembly 40 is provided at the exhaust port 27 of the cyclone body 20 and prevents dust collected in the dust cup 30 from flowing back through the exhaust port 27. The grill assembly 40 is formed at a lower end of the grill body 41, a plurality of fine through holes 42 arranged on the outer peripheral surface of the grill body 41 so as to form a flow path communicating with the exhaust port 27. A conical dust backflow prevention plate 43 is provided.
[0007]
However, the cyclone dust collecting apparatus described above has a problem that when cleaning for a long time, fine dust is caught in the fine through-holes 42 of the grill assembly and blocks the air flow path. Therefore, there is a trouble that the dust cup 30 has to be removed in order to beat out dust attached to the grille assembly 40 in a state where dust does not accumulate in the dust cup 30.
[0008]
In addition, there is a problem that another operation of hitting out dust adhering to the grille assembly 40 must be performed.
[0009]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to provide a cyclone dust collecting apparatus for a vacuum cleaner having an improved structure capable of automatically hitting out dust adhering to a grill assembly. Where you do it.
[0010]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, a cyclone dust collecting apparatus for a vacuum cleaner according to the present invention is provided in a dust collecting chamber communicated with an intake path and an exhaust path of a cleaner main body through a suction brush through the intake path. In a cyclone dust collecting apparatus of a vacuum cleaner for centrifugally separating dust and dust from sucked air, the cyclone dust collecting apparatus has an air inlet and an air outlet corresponding to the intake path and the exhaust path, respectively, and is fixed to an upper part of the dust collecting chamber. A cylindrical cyclone body, and a dust cup provided detachably below the cyclone body to collect dust and debris centrifugally separated by the cyclone body, and provided at a lower portion of the cyclone body. A filter assembly having a turbine filter that prevents backflow of dust while rotating by air flow moving to the exhaust port with the dust cup; and A dusting member for beating out dust adhering to the filter in the automatic, characterized in that it comprises a.
[0011]
The filter assembly may include a pipe member coupled to a lower portion of the cyclone body and formed to allow air to pass therethrough, a cover coupled to an upper end of the pipe member and having a vent, and the pipe member. A shaft that passes through and supports the rotary filter and is rotatably connected to the cover, wherein the rotary filter is connected to a lower end of the pipe member and is rotated by flowing air while being supported by the shaft. desirable.
[0012]
Further, the rotary filter is inserted into a lower end of the pipe member, a turbine having a plurality of blades, a filter network wound around the outer periphery of the turbine, and coupled to a lower end of the turbine, and a lower end of the shaft. It is desirable to include a backflow prevention member that is fixed and prevents the backflow of dust.
[0013]
One end of the dust hitting member is fixed to the outside of the filter assembly, and the other end is provided with a brush that is in contact with the outside of the rotary filter. When the rotary filter rotates, dust is automatically generated by the brush. It is good to be beaten.
[0014]
In addition, it is preferable that the dust hitting member is provided in a diagonally downward diagonal shape in a rotation direction of the rotary filter.
[0015]
Preferably, the dust hitting member has one end fixed to the outer periphery of the pipe member and the other end provided with a brush that comes into contact with the filter net.
[0016]
In addition, it is preferable that the dust hitting member is provided in a diagonally downward diagonal shape in a rotation direction of the turbine member.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 2 is a schematic exploded perspective view showing an upright type vacuum cleaner employing a cyclone dust collecting apparatus according to an embodiment of the present invention. The cyclone dust collecting apparatus according to the embodiment of the present invention includes a cyclone main body 50, a dust cup 60, a filter assembly 70, and a dust hitting member 90.
[0019]
The cyclone main body 50 is formed separately in the upper and lower main body portions 51 and 52. The upper and lower body portions 51, 52 are connected to each other by several screws 53. A first connecting pipe 54 connected to the suction-port-side extension pipe 1a of the cleaner and an intake port 55 communicating with the first connecting pipe 54 are formed in the lower main body 52. A second connecting pipe 56 connected to the main body side extension pipe 1b of the cleaner and an exhaust port 57 communicating with the second connecting pipe 56 are formed in the upper main body 51.
[0020]
The air containing dust sucked in through the suction port of the vacuum cleaner is drawn in the cyclone body 50 obliquely through the first connection pipe 54 and the suction port 55. As a result, a swirling airflow is formed inside the cyclone body 50 and the dust cup 60, and dust contained in the air is separated from the air by the centrifugal force by the swirling airflow.
[0021]
The dust cup 60 is detachably connected to the exhaust port 57 of the cyclone body 50. The dust cup 60 cooperates with the cyclone body 50 to form a swirling airflow with respect to the sucked air, and collects dust separated from the air by the swirling airflow.
[0022]
Referring to FIGS. 3 and 4, the filter assembly 70 is provided at the exhaust port 57 of the cyclone body 50 to prevent dust collected in the dust cup 60 from flowing back through the exhaust port 57. As shown in FIG. 3, the filter assembly 70 includes a pipe member 71 connected to the exhaust port 57, a cover 73, a shaft 75 rotatably supported by the cover 73, and a lower portion of the pipe member 71. Is provided with a rotary filter 77 provided in the.
[0023]
The pipe member 71 has a cylindrical pipe structure whose upper end is expanded into a predetermined shape, and forms a flow path for outflow air. The cover 73 is inserted into the upper part of the pipe member 71. The cover 73 is provided with a plurality of ribs at predetermined intervals around a central shaft portion 73a so that outflow air can pass therethrough. The upper end of a shaft 75 is rotatably connected to the shaft portion 73a by a bearing 76. Therefore, the shaft 75 is provided so as to pass through the pipe member 71 without interference with the pipe member 71.
[0024]
The rotary filter 77 is connected to the lower end of the pipe member 71, and is rotatably supported by the shaft 75. Such a rotary filter 77 includes a turbine 81 inserted and connected to a lower end of a pipe member 71, a filter net 83 wound around the outer periphery of the turbine 81, and a backflow prevention member 85 connected to a lower end of the turbine 81. The turbine 81 has a plurality of rotating blades 81 a provided at predetermined intervals in a circumferential direction, and is thus rotated by air sucked into the pipe member 71. The filter net 83 is coupled to the outer periphery of the turbine 81 and is rotated together with the dust to filter fine dust not separated by centrifugation in the dust cup 60. The backflow prevention member 85 is fixed to the lower end of the shaft 75 by screws 86 while being inserted in the lower part of the turbine 81. Therefore, the rotary filter 77 can rotate together with the shaft 75 as a center. The backflow preventing member 85 prevents the fine dust from flowing back by having the flange portion 85a formed so that the lower end extends outward.
[0025]
On the other hand, a dust hitting member 90 is provided outside the pipe member 71. That is, one end of the dust hitting member 90 is fixed to one end of the pipe member 71, and the other end is placed outside the filter net 83. At the other end, that is, at the lower end, of the dust hitting member 90, a dust hitting brush 91 is installed in contact with the filter net 83.
[0026]
Further, as the turbine 81 rotates clockwise (A), the dust hitting member 90 is inclined downward in the rotation direction of the turbine 81, that is, provided in a diagonal direction. Therefore, dust and dust hit from the filter network 83 when the rotary filter 77 rotates are not collected on the dust hitting member 90 but fall. Such a dust hitting member 90 is attached to the pipe member 71 by a screw, and can be connected through a known connecting means.
[0027]
The operation of the cyclone dust collecting apparatus having the above-described configuration according to the embodiment of the present invention will be described.
[0028]
As shown in FIG. 5, the cyclone dust collecting apparatus according to the embodiment of the present invention is used by being attached to extension pipes 1a and 1b of a vacuum cleaner as in the related art. When the cleaning is started, dust and dirt are sucked in the diagonal direction of the cyclone body 50 through the first connection pipe 54 and the suction port 55 together with the suction air by the suction force generated at the suction port of the vacuum cleaner. As a result, the air descends to the lower part of the dust cup 60 while forming a swirling airflow. In this process, dust and dust contained in the air are separated from the air by the centrifugal force and collected in the dust cup 60.
[0029]
Next, the air passes through the filter network 83 and the turbine 81 of the filter assembly 70 and is sucked into the pipe member 71 by the airflow that moves up and down on the bottom surface of the dust cup 60. Then, the sucked air is discharged to the extension pipe 1b through the exhaust port 57. At this time, part of the dust that rises in the dust cup 60 and rises together with the air due to the airflow collides with the backflow prevention member 85 and is reflected, whereby the traveling direction is changed to the swirling airflow side and falls again.
[0030]
Further, dust that is not repelled by the backflow prevention member 85 is caught by the filter net 83 and is filtered. Therefore, fine dust is caught and attached to the filter net 83. Then, the clean air passes through the filter network 83, passes through the turbine 81, and is discharged. The air thus discharged causes the turbine 81 to rotate clockwise, that is, in the A direction. Accordingly, the dust adhering to the filter net 83 is automatically hit by the dust hitting member 90 and removed by keeping the filter net 83 in contact with the dust hitting member 90 while rotating together with the turbine 81. Therefore, it is possible to prevent the filter network 83 from being clogged with dust and not allowing air to pass smoothly. Further, since the filter net 83 is automatically beaten, it is convenient to remove the dust from the dust cup 60 without removing the filter assembly 70 to beat out dust.
[0031]
On the other hand, in the embodiment of the present invention, the description has been given by assuming that only one dust hitting member 90 is provided, but this is merely an example, and a plurality of dust hitting members may be provided at predetermined intervals.
[0032]
【The invention's effect】
As described above, according to the cyclone dust collecting apparatus for a vacuum cleaner according to the present invention, the filter assembly has a configuration in which the rotary filter is automatically rotated by air and automatically hit by the dust hitting member.
[0033]
Accordingly, the rotary filter can be prevented from being clogged by dust or the like, so that the cleaning efficiency is enhanced. Further, there is an advantage that the usability is improved because it is not necessary to separately clean the rotary filter.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a cyclone dust collecting apparatus of a conventional vacuum cleaner.
FIG. 2 is an exploded perspective view showing a cyclone dust collecting apparatus of the vacuum cleaner according to the embodiment of the present invention.
FIG. 3 is an exploded perspective view of the filter assembly shown in FIG. 2;
FIG. 4 is a cross-sectional view of the filter assembly shown in FIG. 2;
FIG. 5 is a view illustrating an operation of the cyclone dust collecting apparatus according to the embodiment of the present invention.
[Explanation of symbols]
1a Suction port side extension pipe 1b Body side extension pipe 50 Cyclone main body 51 Upper main body section 52 Lower main body section 53, 86 Screw 54 First connection pipe 55 Intake port 56 Second connection pipe 57 Exhaust port 60 Dust cup 70 Filter assembly 71 Pipe member 73 Cover 73a Shaft part 75 Shaft 76 Bearing 81 Turbine 83 Filter net 85 Backflow prevention member 85a Flange part 90 Dust hitting member 91 Dust hitting brush

Claims (7)

A cyclone dust collecting apparatus for a vacuum cleaner, which is provided in a dust collecting chamber communicating with an intake path and an exhaust path of a vacuum cleaner body and centrifugally separates dust and dirt from suction air sucked from a suction brush through the suction path. At
A cylindrical cyclone main body having an air inlet and an air outlet corresponding to the intake path and the exhaust path, respectively, and being fixed to an upper portion of the dust collection chamber;
A dust cup that is provided detachably on the lower side of the cyclone main body and that collects dust and dirt separated by centrifugation in the cyclone main body,
A filter assembly provided at a lower portion of the cyclone main body and having a turbine filter that prevents a backflow of dust while rotating by an air flow moving to the exhaust port with the dust cup;
A dust collecting device for a vacuum cleaner, comprising: a dust hitting member for automatically hitting dust adhering to the turbine filter. The filter assembly comprises:
A pipe member coupled to a lower portion of the cyclone body and formed so as to allow air to pass therethrough;
A cover coupled to an upper end of the pipe member and having a ventilation hole;
Including a shaft rotatably connected to the cover, supporting a rotary filter through the pipe member,
2. The cyclone dust collecting apparatus of claim 1, wherein the rotary filter is connected to a lower end of the pipe member, and is rotated by flowing air while being supported by the shaft. 3. The rotation filter includes:
A turbine inserted into the lower end of the pipe member and having a plurality of blades;
A filter network wound around the outer periphery of the turbine;
The cyclone dust collecting apparatus of a vacuum cleaner according to claim 2, further comprising a backflow prevention member coupled to a lower end of the turbine and fixed to a lower end of the shaft to prevent backflow of dust. The dust hitting member,
One end is fixed to the outside of the filter assembly, and the other end is provided with a brush that is in contact with the outside of the rotary filter, and when the rotary filter rotates, dust is automatically beaten by the brush. The cyclone dust collecting apparatus for a vacuum cleaner according to claim 1. The dust hitting member,
The cyclone dust collecting apparatus for a vacuum cleaner according to claim 4, wherein the cyclone dust collecting apparatus is provided to be inclined downward in the rotation direction of the rotary filter. The dust hitting member,
The cyclone dust collecting apparatus of claim 2, wherein one end is fixed to an outer periphery of the pipe member, and the other end is provided with a brush that contacts the filter net. The dust hitting member,
The cyclone dust collecting apparatus for a vacuum cleaner according to claim 6, wherein the cyclone dust collecting apparatus is provided to be inclined downward in the rotation direction of the turbine member.

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