JP2004188175A - Cyclone dust collection device for vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cyclone dust collection device for a vacuum cleaner in which a quantity of dusts to be collected by a paper filter in a cleaner body is remarkably reduced to prolong a service life of the paper filter. <P>SOLUTION: The cyclone dust collection device for the vacuum cleaner includes: a cyclone body which is equipped with an air suction port and an air exhaust port and forms a turning air current with respect to air which flows in via the air suction port and contains dust; a dust cup freely removably connected to the cyclone body for collecting dust separated from air by the turning air current; a grill assembly provided in an entrance of the air exhaust port within the cyclone body for preventing dust from flowing backwards through the air exhaust port of the cyclone body; and a fine dust filtering means provided to be disposed on the post-stream side of the grill assembly within the cyclone body for secondary separation of fine dust which is not filtered by the grill assembly. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly, to dust and foreign matters (hereinafter, referred to as' ?? The present invention relates to a cyclone dust collecting apparatus for a vacuum cleaner that separates and collects garbage.
[0002]
[Prior art]
A typical example of the above-mentioned handle cyclone dust collecting device provided in an extension pipe of a vacuum cleaner is shown in FIGS. This will be briefly described as follows.
[0003]
As shown in FIGS. 1 and 2, a conventional cyclone dust collecting apparatus 10 for a vacuum cleaner includes a cyclone body 20, a dust cup 30, and a grill assembly 40.
[0004]
The cyclone body 20 includes an intake pipe 21 connected to the suction-side extension pipe 1a of the cleaner, an exhaust pipe 22 connected to the main-body extension pipe 1b of the cleaner, and an intake port 23 communicated with the suction pipe 21. , An exhaust port 24 communicating with the exhaust pipe 22, and air containing dust flowing through the intake port 23 forms a swirling airflow.
[0005]
The dust cup 30 is detachably connected to the cyclone body 20 and collects dust separated from air by a swirling airflow formed by the cyclone body 20.
[0006]
The grille assembly 40 is provided at the outlet of the exhaust port 24 in the cyclone body 20 to prevent dust collected in the dust cup 30 from flowing backward through the exhaust port 24. The grill assembly 40 includes a grill body 41, a plurality of flow paths 42 formed on the outer peripheral surface of the grill body 41 so as to communicate with the exhaust port 24, and a dust blocking member 43 provided at an end of the grill body 41. Prepare.
[0007]
As shown in FIG. 3, the conventional cyclone dust collecting apparatus for a vacuum cleaner, which is configured as described above, is mounted such that its intake pipe and exhaust pipe 21 and 22 are connected to extension pipes 1a and 1b of the vacuum cleaner. Is done. Accordingly, dust is introduced into the cyclone body 20 in a diagonal direction through the intake pipe 21 together with the suction air by the suction force generated at the suction port E of the vacuum cleaner. Descend. In this process, dust contained in the air is separated from the air by the centrifugal force and collected in the dust cup 30. Then, the air starts a reversing upward movement on the bottom surface of the dust cup 30 and rotates with a smaller radius of rotation, while flowing upward through the flow path 42, the exhaust port 24 and the exhaust pipe 22 of the grill assembly 40 by the rising airflow. It is discharged to the B side.
[0008]
As described above, the purified air discharged to the cleaner body B side is discharged to the outside through a paper filter (not shown) provided in the cleaner body B, and at this time, the cyclone dust collecting device Fine dust that is not separated is also filtered and collected by the paper filter.
[0009]
As described above, the cyclone dust collecting device first collects dust contained in the air sucked through the suction port E of the cleaner before the dust is collected by the paper filter of the cleaner body B. The amount of garbage collected in the filter can be reduced.
[0010]
However, in the conventional cyclone dust collecting apparatus for a vacuum cleaner, dust larger than the size of the flow path 42 of the grill assembly 40 can be effectively separated and collected. Backflow through the channel 42 is inevitable. Since the fine dust that flows back in this way is eventually collected by the paper filter provided in the cleaner body B, the amount of dust collected by the paper filter increases, and the service life of the paper filter is shortened. There is a problem and there is a need for improvement.
[0011]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems, and has as its object to collect fine dust that flows backward through a flow passage of a grill assembly into a paper filter by taking measures to secondarily filter the dust. It is an object of the present invention to provide a cyclone dust collecting apparatus for a vacuum cleaner that can reduce the amount of waste generated and extend the service life of a paper filter.
[0012]
[Means for Solving the Problems]
According to another aspect of the present invention, there is provided a cyclone dust collecting apparatus for a vacuum cleaner, comprising: an intake port and an exhaust port, wherein the cyclone body forms a swirling airflow with respect to air containing dust introduced through the intake port. A dust cup detachably coupled to the cyclone body for collecting dust separated from the air by the swirling airflow; and a cyclone for preventing dust from flowing back through an exhaust port of the cyclone body. A grill assembly provided at the exhaust port inlet in the body, and a fine unit disposed downstream of the grill assembly of the cyclone body to secondarily separate fine dust not separated by the grill assembly. Dust filtering means.
[0013]
The fine dust filtering means is formed in the cyclone body and has a filter mounting portion provided with an opening opened in a direction orthogonal to the exhaust port, and a filter assembly detachably connected to the filter mounting portion by a drawer. Including three-dimensional.
[0014]
The filter assembly includes a filter case having an appearance corresponding to the size and structure of the filter mounting part, and a fine filter coupled to the filter case.
[0015]
It is preferable that a packing member for sealing is provided in the filter case portion that contacts the opening of the filter mounting portion.
[0016]
It is preferable that a handle for handling the filter case is provided on a front surface of the filter case.
[0017]
According to the cyclone dust collecting apparatus of the present invention as described above, fine dust that is not separated by the grill assembly and flows back through the flow path of the grill assembly is secondary-filtered by the fine filter that flows back through the flow path of the grill assembly. The exhaust air contains almost no dust. Therefore, the amount of dust collected on the paper filter of the cleaner body can be significantly reduced, and the service life of the paper filter can be extended.
[0018]
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. For reference, in describing the embodiments of the present invention, portions and members having the same configuration and operation as those of the related art will be denoted by the same reference numerals and quoted.
[0019]
FIG. 4 is an exploded perspective view showing a cyclone dust collecting apparatus for a vacuum cleaner according to an embodiment of the present invention, and FIG. 5 is a sectional view showing an assembled state of FIG. The cyclone dust collecting apparatus 10 for a vacuum cleaner according to the embodiment includes a cyclone body 20, a dust cup 30, a grill assembly 40, and fine dust filtering means 50.
[0020]
The cyclone body 20 includes an intake pipe 21 connected to the suction side extension pipe 1a of the cleaner, an exhaust pipe 22 connected to the main body side extension pipe 1b of the cleaner, and an intake port 23 communicating with the suction pipe 21. , An exhaust port 24 communicating with the exhaust pipe 22, and air containing dust flowing through the intake port 23 forms a swirling airflow.
[0021]
The dust cup 30 is detachably connected to the cyclone body 20 and collects dust separated from air by a swirling airflow formed by the cyclone body 20.
[0022]
The grille assembly 40 is provided at the inlet of the exhaust port 24 in the cyclone body 20 and prevents dust collected in the dust cup 30 from flowing back through the exhaust port 24. Such a grill assembly 40 includes a grill body 41, a plurality of channels 42 formed on the outer peripheral surface of the grill body 41 so as to communicate with the exhaust port 24, and a dust blocking member 43 provided at an end of the grill body 41. Is provided.
[0023]
The fine dust filtering means 50 is for separating secondary dust which is not separated by the grill assembly 40 and flows backward through the flow path 42 of the grill assembly 40, and includes a filter mounting part 60 and a filter assembly 70. Is provided.
[0024]
The filter mounting portion 60 has an opening 60 a formed on one side of the cyclone body 20 and opened in a direction orthogonal to the exhaust port 24.
[0025]
The filter assembly 70 is detachably connected to the filter mounting unit 60 in a drawer type, and separates fine dust contained in air discharged to the exhaust port 24 through the filter mounting unit 60. The filter assembly 70 includes a filter case 71 and a fine filter 72.
[0026]
The filter case 71 has an appearance structure corresponding to the shape and structure of the filter mounting portion 60, and the fine filter 72 is fixed to the filter case 71. Here, it is desirable that the fine filter 72 is made of a porous material such as a sponge. In addition, it is desirable that a packing member 71a for sealing is provided in a portion of the filter case 71 that comes into contact with the opening 60a of the filter mounting portion 60. In the drawing, reference numeral 71b denotes a handle for facilitating the handling of the filter assembly 70.
[0027]
As shown in FIG. 3, the suction pipe 21 and the exhaust pipe 24 of the cyclone dust collecting apparatus for a vacuum cleaner according to the present invention configured as described above are connected to the extension pipes 1a and 1b of the vacuum cleaner. To be mounted. Accordingly, dust is introduced into the cyclone body 20 in a diagonal direction through the suction pipe 21 together with the suction air by the suction force generated at the suction port E of the vacuum cleaner, whereby the air descends to the lower part of the dust cup 30 while forming a swirling airflow. I do. In this process, dust contained in the air is separated from the air by the centrifugal force and collected in the dust cup 30.
[0028]
The air from which the dust is firstly separated by the above-described operation starts a reversing movement on the bottom surface of the dust cup 30, and rotates while having a smaller radius of rotation. It is discharged to the cleaner body B side through the fine dust filtering means 50 provided at the port 24 and the exhaust pipe 22.
[0029]
At this time, the fine dust that is not separated by the grill assembly 40 included in the discharged air as described above is secondarily separated by the filter assembly 70 of the fine dust filtering means 50, and thus the dust is reduced to one. Only the purified air separated from the secondary and secondary air is discharged to the cleaner body B side.
[0030]
The air discharged to the cleaner body B side is finally discharged to the outside via a paper filter provided in the cleaner body B.
[0031]
As described above, the cyclone dust collecting apparatus for a vacuum cleaner according to the present invention separates and collects the dust of large particles contained in the air by the grill assembly and the secondary dust by the fine dust filtering means. Since the fine dust is separated and collected, the amount of dust moving to the cleaner body B side is significantly reduced.
[0032]
While the invention has been shown and described with reference to preferred embodiments for illustrating the principles of the invention, the invention is not limited to the exact construction and operation so shown and described. Instead, those skilled in the art will appreciate that numerous changes and modifications may be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered as falling within the scope of the invention.
[0033]
【The invention's effect】
As described above, according to the present invention, the amount of dust moving to the cleaner main body side can be significantly reduced by the secondary dust separation and collection operation by the fine dust filtering means, and the service life of the paper filter can be extended.
[0034]
In addition, the trouble caused by frequent replacement of the paper filter can be eliminated, the usability of the vacuum cleaner can be improved, and the service life of the paper filter can be extended, so that the maintenance cost of the vacuum cleaner can be reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a general cyclone dust collecting apparatus for a vacuum cleaner.
FIG. 2 is a sectional view showing an assembled state of FIG. 1;
FIG. 3 is a perspective view showing a state in which a general cyclone dust collecting apparatus for a vacuum cleaner is provided on an extension pipe of a canister type vacuum cleaner.
FIG. 4 is an exploded perspective view showing a cyclone dust collecting apparatus for a vacuum cleaner according to an embodiment of the present invention.
FIG. 5 is a sectional view of an assembled state of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Cyclone dust collector 20 Cyclone body 21 Intake pipe 22 Exhaust pipe 23 Intake port 24 Exhaust port 30 Dust cup 40 Grill assembly 41 Grill body 42 Flow path 50 Fine dust filtration means 60 Filter mounting part 60a Opening part 70 Filter assembly 71 Filter case 72 Fine filter

Claims (5)

A cyclone body that has an intake port and an exhaust port, and forms a swirling airflow with respect to air containing dust that flows in through the intake port;
A dust cup removably coupled to the cyclone body to collect dust separated from the air by the swirling airflow;
A grill assembly provided at an inlet of the exhaust port in the cyclone body to prevent backflow of dust through the exhaust port of the cyclone body;
A cyclone filter disposed at a downstream side of the grill assembly of the cyclone body so as to secondarily separate micro dust not separated by the grill assembly. Dust collector. The fine dust filtering means,
A filter mounting portion formed in the cyclone body and having an opening opened in a direction orthogonal to the exhaust port;
The cyclone dust collecting apparatus of claim 1, further comprising: a filter assembly detachably connected to the filter mounting unit in a drawer type. The filter assembly comprises:
A filter case having an appearance structure corresponding to the size and structure of the filter mounting portion,
The cyclone dust collecting apparatus for a vacuum cleaner according to claim 2, further comprising: a fine filter coupled to the filter case. 4. The cyclone dust collecting apparatus of claim 3, wherein a packing member for sealing is provided at a portion of the filter case that contacts the opening of the filter mounting portion. 5. 5. The cyclone dust collecting apparatus for a vacuum cleaner according to claim 3, wherein a handle for handling the filter case is provided on a front surface of the filter case. 6.

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