KR20070000634A - Dust collector for vacuum cleaner - Google Patents

Abstract

A dust collecting device of a vacuum cleaner is provided to enhance dust-collecting function by lowering flow resistance through a secondary cyclone unit, and to check a dust box for storing dust of a primary cyclone unit through the naked eyes of a user by making the dust collecting device using transparent materials. A dust collecting device of a vacuum cleaner comprises a primary cyclone unit and a secondary cyclone unit installed in the primary cyclone unit and formed with a blade unit(114) rotated in the same direction with the air in the secondary cyclone unit. The primary cyclone unit has: a first inlet port formed cylindrically at the upper lateral side of the primary cyclone unit to primarily gather large dust to inflow air tangentially; a primary cyclone chamber formed at the upper space of the primary cyclone unit to separate foreign matters by the centrifugal force; and a primary dust storage unit formed at the lower space of the primary cyclone unit to keep foreign matters separated by the centrifugal force.

Description

Dust collector for vacuum cleaners {Dust Collector for Vacuum Cleaner}

1 is a longitudinal sectional view schematically showing a conventional dust collector;

2 is a longitudinal sectional view showing a dust collector according to a first embodiment of the present invention;

3 is a plan view showing a blade unit according to the first embodiment of the present invention;

4 is a perspective view showing an internal configuration of a secondary cyclone unit according to a first embodiment of the present invention;

5 is a longitudinal sectional view showing a dust collecting apparatus according to a second embodiment of the present invention;

6 is a perspective view showing an inlet shape of a secondary cyclone unit according to a second exemplary embodiment of the present invention;

7 is a plan view showing the inlet shape of the secondary cyclone portion according to the present embodiment.

<Description of Symbols for Major Parts of Drawings>

110: primary cyclone section 111: primary cyclone chamber

113: first inlet 114: blade unit

114a: blade 114b: unit body

117: primary dust storage unit 118: shatterproof member

119: filter portion 120: secondary cyclone portion

121: secondary cyclone chamber 124: second outlet

125: vane 127: secondary dust storage unit

220: secondary cyclone portion 221: secondary cyclone chamber

224: second outlet 225: inlet

225a: chamber inlet 225b: guide

The present invention relates to a dust collecting apparatus of a vacuum cleaner, and more particularly, to a dust collecting apparatus for collecting a foreign matter on a cyclone principle.

The cyclone dust collector is a device that collects foreign substances such as dust contained in the air by using the cyclone principle. Cyclone dust collectors are applied in various fields, and are mainly applied to vacuum cleaners for home use.

Recently, a multi-cyclone dust collector equipped with a plurality of cyclone units is used to improve dust collection performance.

Hereinafter, a dust collecting apparatus of a conventional vacuum cleaner will be described with reference to FIG. 1.

Conventional dust collector is connected to the primary cyclone portion 10, the primary cyclone portion 10 for collecting polluted air from the outside to collect relatively large dust, secondary cyclone for collecting relatively small dust It comprises a portion 20.

Here, the primary cyclone portion 10 is a cylindrical container having a lower end in close contact with the bottom of the dust collector, and a first inlet 13 for introducing contaminated air containing foreign matter in a tangential direction on an upper side thereof. The first outlet 14 is formed at the center of the upper end of the first purified air discharged.

Accordingly, the upper space of the primary cyclone portion 10 forms a primary cyclone chamber 11 that separates foreign matter by centrifugal force, and the lower space of the primary cyclone portion 10 is applied to the centrifugal force. By forming the primary dust storage unit 17 to store the foreign matter separated by.

In addition, the secondary cyclone unit 20 may include a plurality of small secondary cyclone chambers 21 and the secondary cyclone chamber circumferentially arranged around the upper portion of the primary cyclone unit 10. It comprises a secondary dust storage 27 for storing the dust separated in 21).

The secondary dust storage unit 27 is provided below the secondary cyclone units 20. The primary dust storage unit 17 and the secondary dust storage unit 27 are partitioned by sidewalls of the primary cyclone unit 10.

Therefore, the air discharged from the first outlet 14 is introduced into the secondary cyclone chamber 21 and undergoes a secondary dust separation process, and then the second outlet 24 formed in the upper portion of the secondary cyclone chamber. Is discharged upward of the dust collecting device via the).

And, although not shown, the upper part of the above-mentioned conventional dust collector is further provided with a separate filter to finally separate the fine foreign matter that can not be separated after the foreign matter introduced into the dust collector by the cyclone method. Can be.

However, the dust collector using the conventional cyclone principle described above has a problem in that dust collection performance is not good as a result of large flow resistance due to air flow in the process of introducing air into the secondary cyclone portion after passing through the primary cyclone portion. There was this.

In addition, since a plurality of secondary cyclones surround the outer circumferential surface of the primary cyclone portion, the user cannot visually confirm the dust bin of the primary cyclone portion in which relatively large dust is accumulated.

The present invention is to solve the above-mentioned problems, an object of the present invention is to provide a dust collector of the vacuum cleaner with improved dust collection performance by reducing the flow path resistance generated through the secondary cyclone portion.

Another object of the present invention is to provide a dust collector for a vacuum cleaner that allows a user to visually check a dust container for storing dust of a primary cyclone portion.

In order to achieve the above object, the present invention, the primary cyclone portion for separating the foreign matter contained in the air introduced into the cyclone principle; A secondary cyclone unit provided inside the primary cyclone to purify the air discharged from the primary cyclone unit again; And a blade unit provided inside the primary cyclone portion to rotate air flowing into the secondary cyclone portion through the primary cyclone portion in the same direction as the air rotation direction inside the secondary cyclone portion. It provides a dust collector of the vacuum cleaner.

And, The blade unit, the unit body; And, it is preferably formed on the outer circumferential surface of the unit body, and comprises a plurality of blades having a predetermined angle with the air rotation direction inside the secondary cyclone portion.

According to the first embodiment of the present invention, the secondary cyclone portion includes a plurality of helical guides arranged in the circumferential direction and is provided with vanes for imparting rotational force to air introduced into the secondary cyclone portion.

In addition, according to the second embodiment of the present invention, the secondary cyclone portion is provided with a flow path guide for allowing air passing through the primary cyclone portion to flow in the tangential direction to the secondary cyclone portion.

On the other hand, the outer wall of the dust collector is made of a transparent material, it is preferable that the inside of the dust collector can be seen from the outside. In addition, the dust collector, the flow path is formed in such a way that the width gradually decreases toward the progress of the cyclone in the primary cyclone portion to increase the flow rate of air introduced into the inlet of the primary cyclone desirable.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized are described with reference to the accompanying drawings. In the description of this embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted.

2 to 4, the dust collecting apparatus of the vacuum cleaner according to the first embodiment of the present invention will be described.

FIG. 2 is a longitudinal sectional view showing the present embodiment, FIG. 3 is a plan view showing the blade unit in the present embodiment, and FIG. 4 is a perspective view showing the internal configuration of the secondary cyclone portion.

This embodiment basically includes a primary cyclone unit 110 and a secondary cyclone unit 120 as in the prior art. However, in the present embodiment, the secondary cyclone is made of one, and is provided inside the primary cyclone part 110. In addition, in the path through which the air passed through the primary cyclone unit 110 flows into the secondary cyclone, the air flowing into the secondary cyclone is the same as the direction of air rotation inside the secondary cyclone unit 120. The blade unit 114 which rotates in the direction is provided.

The primary cyclone unit 110 serves to primarily collect relatively large dust, and has a substantially cylindrical shape. A first inlet 113 is formed at the upper side of the primary cyclone to allow air to flow in a tangential direction, and a blade unit 114 is formed at the center of the upper end to discharge the primary purified air.

The upper space of the primary cyclone unit 110 forms a primary cyclone chamber 111 that separates foreign matter by centrifugal force, and the lower space of the primary cyclone unit 110 is separated by centrifugal force. The primary dust storage unit 117 for storing the foreign matter is formed.

Unlike the prior art, the secondary cyclone unit 120 is formed of one and provided inside the primary cyclone unit 110. In addition, the secondary cyclone unit 120 is a part of the air discharged from the primary cyclone unit 110 is introduced, and serves to separate the foreign matter contained in the introduced air by the cyclone principle again. .

In this embodiment, the vane 125 is provided to impart rotational force to the air so that the air can rotate while forming a spiral flow in the secondary cyclone part 120. Specifically, the air passing through the primary cyclone part 110 is tangentially introduced to obtain a rotational force through the vanes 125 formed of a plurality of spiral guides arranged in the circumferential direction without obtaining rotational force.

The vane 125 is composed of a plurality of spiral guides arranged in the circumferential direction, as shown in FIG. By the vanes 125, the air flowing in the upper portion of the vanes 125 is changed in the flow direction according to a plurality of spiral guides arranged in the circumferential direction to obtain a rotational force rotating about the axis of the vanes 125.

There is no limit to the number of spiral guides, and FIG. 4 illustrates the vanes 125 having a total of six spiral guides.

By providing the vanes 125 on the upper portion of the secondary cyclone portion 120, a separate flow guide for tangentially entering the secondary cyclone portion 120 to impart rotational force to air is not required. do.

The blade unit 114 is provided inside the primary cyclone unit 110 to pass air introduced into the secondary cyclone unit 120 through the primary cyclone unit 110. It serves to rotate in the same direction as the air rotation direction inside the clone portion 120.

That is, by applying the rotational force to the air introduced into the secondary cyclone unit 120 through the blade unit 114 in advance, the vane 125 that imparts the rotational force inside the secondary cyclone unit 120 is provided. Through the flow resistance is reduced.

The blade unit 114 includes a blade unit 114 body 114b and a plurality of blades 114a. The blade is formed on the outer circumferential surface of the body of the blade unit 114 is configured to have a predetermined angle with the air rotation direction inside the secondary cyclone portion 120.

The angle of the blade 114a and the unit body is not limited, but in order to prevent the air from flowing directly into the secondary cyclone unit 120 without rotating in the primary cyclone chamber 111, the primary cyclone It is preferable that the angle formed by the air rotating direction inside the part 110 and the blade 114a forms an acute angle.

In addition, in order to obtain an effective rotational force, the air passing through the primary cyclone unit 110 is applied to the rotational force through the blade unit 114, and the vane provided inside the secondary cyclone unit 120 ( 125), the direction of air rotation should be the same.

As shown in FIG. 4, the air flowing through the blade unit 114 is provided with a rotational force in a clockwise direction, and is again clockwise by a vane 125 formed inside the blade unit 114. You get a torque.

Therefore, since both the blade unit 114 and the vane 125 impart a rotational force in the clockwise direction, the air introduced into the secondary cyclone unit 120 can more efficiently generate the cyclone.

In addition, the outer lower portion of the secondary cyclone unit 120 is preferably provided with a scattering preventing member 118 to prevent the dust stored in the primary dust storage unit 117 to scatter. The scattering preventing member 118 functions to prevent dust collected in the primary cyclone unit 110 from scattering upward and flowing into the secondary cyclone unit 120.

On the other hand, the outer wall of the dust collector is made of a transparent material, it is preferable to configure so that the user can visually check the amount of dust collected from the outside. In the conventional dust collector, the secondary cyclone surrounds the outer circumferential surface of the primary cyclone part 110 in a circumferential direction. Therefore, even if the dust collector is composed of a transparent material, the user could not easily check the amount of dust inside the dust collector from the outside.

In the present exemplary embodiment, since the secondary cyclone part 120 is formed inside the primary cyclone part 110, the dust collecting device may be made of a transparent material so that a relatively large dust is accumulated in the primary dust storage part ( The dust container of 117 can be easily checked, making it easy to accurately determine when to empty the dust.

In addition, the dust collector is preferably formed in the flow path in the form of the width gradually decreases in the direction of the cyclone in the primary cyclone portion. This is because the flow rate of air represented by the product of the cross-sectional area and the flow rate of the air is constant, so that the flow rate of the air can be increased by decreasing the cross-sectional area, and as a result, the centrifugal force is increased and the dust collection performance is improved.

Referring to the operation of the vacuum cleaner having an embodiment of the above-described dust collector according to the present invention.

First, when the vacuum cleaner is operated, external polluted air is introduced into the primary cyclone unit 110 through a suction nozzle (not shown) and a connection pipe (not shown).

Air introduced through the first inlet 113 is guided in a tangential direction to the inner wall of the primary cyclone unit 110 to form a spiral flow. Accordingly, dust that is relatively heavy and large in weight is separated and lowered by the cyclone principle while being stored in the primary dust storage unit 117, and the dust stored in the primary dust storage unit 117 is scattered. 118 prevents the scattering.

In addition, the air from which relatively large dusts are separated through the primary cyclone unit 110 passes through the blade unit 114 and primarily obtains rotational force. The inflowing air passes through the blade unit 114 and in the same direction as the direction of the rotational force obtained by the blade unit 114 by the vane 125 provided in the secondary cyclone unit 120. You will gain torque again. Therefore, the air flowing into the secondary cyclone unit 120 undergoes a foreign matter separation process according to the cyclone principle again.

The air discharged from the dust collector discharge port is sucked into the fan-motor assembly (not shown) of the cleaner body via the cleaner body exhaust port, and the air passing through the fan-motor assembly passes through a predetermined flow path to the side of the cleaner body. Is discharged.

5 to 7, the dust collecting apparatus of the vacuum cleaner according to the second embodiment of the present invention will be described.

5 is a longitudinal sectional view showing a dust collecting device of the vacuum cleaner according to the present embodiment, FIG. 6 is a perspective view showing the inlet shape of the secondary cyclone unit according to the present embodiment, and FIG. 7 is a secondary cyclone unit according to the present embodiment. It is a top view which shows an inlet shape.

The basic configuration of this embodiment is the same as that of the first embodiment. That is, the primary cyclone unit 110 that separates the foreign matter contained in the air introduced into the cyclone principle, the inside of the primary cyclone unit 110, the primary cyclone unit 110 Secondary cyclone unit 220 for purifying the air discharged from the second cyclone unit 220, the second cyclone unit 220 is introduced into the secondary cyclone unit 220 through the primary cyclone unit 110 It is configured to include a blade unit 114 for rotating in the same direction as the air rotation direction inside.

However, in the present embodiment, in the structure of the secondary cyclone portion 220, the rotation force is obtained by inflow of air in a tangential direction without obtaining rotational force through the vane passing through the primary cyclone portion 110. .

In this embodiment, an inlet 225 is provided to allow the air introduced into the secondary cyclone unit 220 through the blade unit 114 to tangentially flow into the secondary cyclone chamber. ) Is composed of a chamber inlet 225a to be introduced into the secondary cyclone chamber 221, and a guide guide 225b to guide the air introduced into the chamber through the chamber inlet 225a.

As illustrated in FIGS. 6 and 7, two chamber inlets 225 are provided on an upper side of the secondary cyclone chamber 221 opposite to each other, and inside the secondary cyclone chamber 221. The guide guides guide the air introduced into the chamber through the inlet and impart rotational force to the position of the other chamber inlet 225a in a clockwise direction at each chamber inlet 225a.

As described above, the chamber inlet 225a and the guide guide 225b provide the rotational force to the air obtained by the blade unit 114 in the predetermined direction, thereby providing air in the secondary cyclone chamber 221. Can effectively separate the foreign matter.

6 and 7 illustrate the case where the number of the chamber inlets 225a is two, but the number of the chamber inlets 225a is not limited. In addition, in the present embodiment, the chamber inlet 225a and the guide guide 225b are configured clockwise so as to obtain rotational force inside the secondary cyclone chamber in the same direction as the blade unit 114 rotates. Naturally, the inlet 225a and the guide guide 225b may be formed so that air flows in a counterclockwise direction.

As described above, the preferred embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

Referring to the effects of the dust collector according to the present invention described above are as follows.

First, by applying the rotational force through the blade unit in the air flowing through the primary cyclone into the secondary cyclone portion, it is possible to effectively separate the material in the secondary cyclone portion, and is generated by the flow of air The dust resistance can be minimized to improve dust collection performance.

Second, by arranging the secondary cyclone inside the primary cyclone and constructing the dust collector with a transparent material, the user can visually check the amount of dust in the primary cyclone, making it easier to empty the dust bin. You can decide.

Claims (6)

Primary cyclone unit for separating the foreign matter contained in the air introduced into the cyclone principle; A secondary cyclone unit provided inside the primary cyclone to purify the air discharged from the primary cyclone unit again; And a blade unit provided inside the primary cyclone portion to rotate air flowing into the secondary cyclone portion through the primary cyclone portion in the same direction as the air rotation direction inside the secondary cyclone portion. Dust collector of vacuum cleaner become. The method of claim 1, The blade unit, Unit body; And, And a plurality of blades formed on an outer circumferential surface of the unit body, the blades having a predetermined angle with an air rotation direction inside the secondary cyclone portion. The method according to claim 1 or 2, In the secondary cyclone portion, Dust collecting device of the vacuum cleaner comprising a plurality of spiral guides arranged in the circumferential direction, the vane for providing a rotational force to the air flowing into the secondary cyclone portion. The method according to claim 1 or 2, In the secondary cyclone portion, A dust collecting device of a vacuum cleaner, characterized in that a flow passage guide for introducing air passing through the primary cyclone portion in a tangential direction to the secondary cyclone portion. The method according to claim 1 or 2, The outer wall of the dust collector is made of a transparent material, the dust collector of the vacuum cleaner, characterized in that configured to be able to see the inside of the dust collector from the outside. The method according to claim 1 or 2, The dust collector, Dust collection of the vacuum cleaner, characterized in that the flow path is formed to gradually decrease in width in the direction in which the cyclone proceeds from the primary cyclone to increase the flow rate of the air introduced into the inlet of the primary cyclone Device.

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