KR20070000633A - Dust collector for vacuum cleaner - Google Patents

Abstract

A dust collecting device of a vacuum cleaner is provided to improve 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 by the naked eyes of a user. A dust collecting device of a vacuum cleaner comprises: a primary cyclone unit(110) for separating foreign matters in air by a cyclone principle; and plural secondary cyclone units(120) for inflowing air discharged from the primary cyclone unit and separating foreign matters contained in air. A direction for inflowing air into the secondary cyclone unit is the same with a direction for discharging air to the outside of the secondary cyclone unit. A rotation shaft of the air in the primary cyclone unit and a rotation shaft of the air in the secondary cyclone unit form verticality.

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 perspective view showing an internal configuration of a dust collecting device according to an embodiment of the present invention;

Figure 3 is a perspective view showing a secondary cyclone portion of the dust collector according to an embodiment of the present invention;

Figure 4 is a plan view showing a first outlet of the dust collector according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

110: primary cyclone section 111: primary cyclone chamber

113: first inlet 114: first outlet

114a: through hole 117: primary dust storage unit

118: shatterproof member 120: secondary cyclone portion

121: secondary cyclone chamber 123: second inlet

124: second outlet 125: spiral guide

126: communication port 127: secondary dust storage unit

130: secondary cyclone case 134: dust collector outlet

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 dust collector 10, the primary cyclone dust collector 10, which collects relatively large dust by inhaling polluted air from the outside, and the secondary cyclone to collect relatively small dust It comprises a clone dust collector 20.

Here, the primary cyclone dust collecting part 10 is a cylindrical container having a lower end in close contact with the bottom of the dust collecting device, and a first inlet 11 for introducing contaminated air containing foreign matter in a tangential direction on an upper side thereof. The first exhaust port 12 through which the purified air is primarily discharged is formed at the center of the upper end.

Accordingly, the upper space of the primary cyclone dust collector 10 forms a primary cyclone portion 13 for separating foreign matter by centrifugal force, and the lower space of the primary cyclone dust collector 10 is subjected to centrifugal force. It forms a primary dust storage unit 14 for storing the foreign matter separated by.

The secondary cyclone dust collector 20 may include a plurality of small secondary cyclone portions 21 and the secondary cyclone portion circumferentially arranged around the upper portion of the primary cyclone dust collector 10. And a secondary dust storage section 22 for storing the dust separated in the sections 21).

Here, the secondary dust storage unit 22 is provided below the secondary cyclone units 21. The primary dust storage unit 14 and the secondary dust storage unit 22 are partitioned by sidewalls of the primary cyclone dust collector 10.

Therefore, the air discharged from the first exhaust port 12 flows into the secondary cyclone portion 21 and undergoes secondary dust separation, and is then discharged upward of the dust collector.

The upper part of the above-mentioned conventional dust collector, after the foreign matter introduced into the dust collector is separated by a cyclone method, a separate filter for finally separating the fine foreign matter that can not be separated may be further provided.

However, since the dust collector using the conventional cyclone principle described above forms a flow path gradually flowing downward while discharged upward while forming a spiral flow inside the secondary cyclone, the flow path resistance according to the air flow As a result, there was a problem of poor dust collection performance.

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 first cyclone unit for separating foreign matter contained in the air introduced into the cyclone principle; And, the air discharged from the primary cyclone portion is introduced, and includes a plurality of secondary cyclone portion for separating the foreign matter contained in the introduced air, the direction in which the air proceeds while rotating at the inlet side of the secondary cyclone portion In addition, it provides a dust collector of a vacuum cleaner in which the direction in which air travels while rotating at the outlet side of the secondary cyclone part is the same.

In addition, it is preferable that the rotation axis of the air rotate inside the primary cyclone portion and the rotation axis of the air rotate inside the secondary cyclone portion are substantially vertical. In addition, it is more preferable that a communication port is formed at a lower side of the secondary cyclone portion so that foreign matter separated from air by the cyclone principle is discharged to the outside of the secondary cyclone portion.

On the other hand, it is preferable that the secondary cyclone portion includes a plurality of spiral guides disposed in the circumferential direction on the inner circumferential surface of the secondary cyclone portion to impart rotational force to air flowing into the secondary cyclone portion. In addition, the outlet of the primary cyclone portion is composed of a plurality of through holes, the through hole is larger in diameter toward the bottom, the non-circular shape of the vertical axis of the through hole inclined at a predetermined angle in the direction of air rotation inside the primary cyclo portion It is desirable to lose.

In addition, 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, it is preferable that the flow path is formed in the form of gradually decreasing width in the direction in which the cyclone so as to increase the flow rate of air introduced into the inlet of the primary cyclone.

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 embodiment of the present invention will be described.

Figure 2 is a perspective view showing the internal configuration of the dust collector according to an embodiment of the present invention, Figure 3 is a perspective view showing a secondary cyclone portion of the dust collector according to an embodiment of the present invention, Figure 4 is a view of the present invention It is a top view which shows the 1st outflow part of the dust collector which concerns on an Example.

This embodiment is basically a primary cyclone unit 110 for separating the foreign matter contained in the air introduced into the inside as in the conventional cyclone principle, and the air discharged from the primary cyclone portion is introduced It comprises a plurality of secondary cyclone unit 120 for separating the foreign matter contained in the air.

However, in the present embodiment, the direction in which the air proceeds while rotating at the inlet side of the secondary cyclone unit 120 and the direction in which the air proceeds while the air is rotated at the outlet side of the secondary cyclone unit 120 are mutually different. Same configuration. That is, the direction in which air is introduced into the secondary cyclone part 120 and the direction in which air is discharged to the outside of the secondary cyclone part 120 are configured to be the same.

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 110 to allow air to flow in a tangential direction, and a first outlet 114 is formed at the top center to discharge the first purified air. do.

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.

In addition, a scattering preventing member 118 may be provided at the inner lower portion of the primary cyclone unit to prevent dust stored in the primary dust storage unit 117 from scattering. 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.

Unlike the related art, the secondary cyclone unit 120 is provided in the horizontal direction on the upper portion of the primary cyclone unit 110. Therefore, the axis of rotation of air in the primary cyclone part 110 and the axis of rotation of air in the secondary cyclone part 120 are formed to be substantially perpendicular.

On the other hand, the secondary cyclone unit 120 is a part of the air discharged from the primary cyclone unit 110 is introduced, serves to separate the foreign matter contained in the introduced air by the cyclone principle again. .

In addition, a plurality of spiral guides 125 are disposed on the inner circumferential surface of the secondary cyclone part 120 and disposed in the circumferential direction to impart rotational force to air introduced into the secondary cyclone part 120.

As shown in FIG. 3, the spiral guides 125 are arranged in a circumferential direction. By this spiral guide 125, the air flowing into the secondary cyclone portion 120 is changed in the flow direction according to the plurality of spiral guides 125 arranged in the circumferential direction to obtain a rotational force to rotate in the axial direction. There is no limitation on the number of spiral guides 125, and FIG. 3 illustrates a spiral guide 125 having a total of six.

By providing the spiral guide 125 at the inlet side of the secondary cyclone part 120, a separate flow guide for tangentially entering the secondary cyclone part 120 to impart rotational force to air is provided. It is not necessary.

On the other hand, in the conventional vacuum cleaner dust collector, the secondary cyclone portion 120 is disposed in the circumferential direction on the outer circumferential surface of the primary cyclone portion (110). In addition, a flow path guide is provided so that air passing through the primary cyclone unit 110 flows in the tangential direction to the secondary cyclone unit 120. Air flowing into the secondary cyclone unit 120 moves downward while forming a spiral flow, and then moves to the second outlet 124, which is an outlet of the secondary cyclone unit, by the suction force of the motor, and is discharged from the dust collector. do.

That is, in such a conventional dust collector, the flow inside the secondary cyclone portion 120 moves downward while the helical air flows in the tangential direction from the top to the bottom, and then the second outlet 124 provided on the upper portion again. It has a structure that is discharged to), the flow resistance generated while air flows the secondary cyclone unit 120 had a relatively high problem.

In contrast, in the present embodiment, the air flowing into the secondary cyclone unit 120 obtains a rotational force that rotates in the axial direction through the spiral guide 125 provided at the second inlet 123 side, and the secondary cyclone It rotates while forming a spiral flow in the clone chamber 121. The foreign matter contained in the air introduced by this rotation is separated and collected to the bottom, the separated air is discharged while forming a spiral flow in the same direction as the inflow direction. That is, in this embodiment, the direction flowing into the secondary cyclone unit 120 and the direction discharged after passing through the secondary cyclone unit 120 are configured to be the same.

By such a flow structure, the dust collector of the present embodiment simplifies the flow of air inside the secondary cyclone portion 120 and shortens the flow path as compared with the conventional dust collector, resulting in a flow resistance due to the air flow. Will decrease.

The lower side of the secondary cyclone portion 120 is formed with a communication port 126 through which foreign matters are discharged so that foreign matters separated by the cyclone principle may fall into the secondary dust storage unit 127. . In addition, the position of the communication port 126 is not limited, but it is advantageous to be located on the downstream side of the secondary cyclone unit 120 to be located at the end of the separation of foreign matter.

The number of the secondary cyclone portions 120 is not limited. For example, FIG. 2 illustrates a case where there are seven secondary cyclone units 120. The secondary cyclone part 120 is accommodated in the secondary cyclone part case 130, and one end of the case is disposed at the second outlet part 124 of the plurality of secondary cyclone parts 120. A dust collector outlet 134 is provided to collect the discharged air and discharge it to the outside of the dust collector.

Meanwhile, as illustrated in FIG. 4, the first outlet 114 of the primary cyclone unit 110 includes a plurality of through holes 114a, and the through holes 114a have a larger diameter toward the bottom. It is preferable.

Air tangentially introduced into the primary cyclone part 110 gradually moves downward while forming a spiral flow. In general, the separation process according to the cyclone principle is further progressed toward the lower side of the primary cyclone unit 110 so that the amount of foreign matter contained in the air is smaller than the upper side of the primary cyclone unit 110. .

That is, since there are many foreign matters that are not separated yet in the upper portion of the primary cyclone unit 110, the diameter of the through hole 114a is formed small, and the lower portion of the through hole 114a because the foreign matter is relatively small. It is preferable that the diameter is large. The flow resistance can be reduced by increasing the lower through hole 144a of the first outlet 114, and the lower through hole of the first outlet 114 is relatively less foreign matter contained in the air below the first outlet 114. Even if the diameter of the 114a is increased, a large amount of foreign matter does not pass.

In addition, the shape of the through hole 114a is preferably inclined at a predetermined angle in the same direction as the direction in which the air sucked into the primary cyclone portion forms a spiral flow. Due to the shape of the through hole 114a, the air having passed through the primary cyclone part 110 may more easily pass through the first outlet 114.

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 gradually decreasing width in the direction in which the primary cyclone 110 occurs. 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 moves upward through the first outlet 114 and flows into the secondary cyclone unit 120 configured in the horizontal direction. The introduced air flows along the spiral guide 125 formed inside the secondary cyclone part 120 to obtain rotational force in the axial direction. The air obtained by the rotational force is formed again in the secondary cyclone chamber 121, and after the foreign matter separation process by the cyclone principle is formed again, the second outlet (124) formed at the end of the secondary cyclone portion 120 Is discharged through).

The air exiting the second outlet 124 is discharged to the outside of the dust collector through the dust collector outlet 134, and is sucked into the fan-motor assembly (not shown) of the cleaner body via the cleaner body exhaust port. Air passing through the motor assembly is discharged to the side of the cleaner body through a predetermined flow path.

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, the flow resistance generated while passing through the secondary cyclone part is minimized by making the same in the direction in which air proceeds at the inlet side of the secondary cyclone part and in the direction in which air proceeds at the outlet side of the secondary cyclone part. The dust collecting performance can be improved.

Second, by arranging the secondary cyclone in the horizontal direction and the dust collector is made of a transparent material, the user can visually check the amount of dust in the primary cyclone, so that it is easy to determine when to empty the dust container.

Claims (8)

Primary cyclone unit for separating the foreign matter contained in the air flowing into the cyclone principle; And, The air discharged from the primary cyclone portion is introduced, and includes a plurality of secondary cyclone portion for separating the foreign matter contained in the introduced air, The dust collecting device of the vacuum cleaner, wherein the direction in which the air proceeds while rotating at the inlet side of the secondary cyclone part and the direction in which the air proceeds as the air rotates at the outlet side of the secondary cyclone part are the same. The method of claim 1, The dust collecting apparatus of claim 1, wherein the rotating shaft in which the air rotates in the primary cyclone part and the rotating shaft in which the air rotates in the secondary cyclone part are substantially vertical. The method of claim 1, A dust collecting device of the vacuum cleaner, characterized in that a communication port for discharging the foreign matter separated from the air by the cyclone principle to the outside of the secondary cyclone portion on the lower side of the secondary cyclone portion. The method of claim 1, The secondary cyclone portion, And a plurality of spiral guides disposed in the circumferential direction on the inner circumferential surface of the secondary cyclone portion to impart rotational force to the air flowing into the secondary cyclone portion. The method of claim 1, The outlet of the primary cyclone portion is composed of a plurality of through holes, the through hole is a dust collector of the vacuum cleaner, characterized in that the diameter increases toward the bottom. The method of claim 1, The outlet of the primary cyclone portion is composed of a plurality of through holes, the through holes are made of a non-circular dust collector, characterized in that the vertical axis of the through hole inclined at a predetermined angle in the direction of rotation of air in the primary cyclo portion Device. The method according to any one of claims 1 to 6, 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 any one of claims 1 to 6, The flow path of the dust collector is characterized in that the width is gradually reduced in the direction in which the cyclone proceeds in the primary cyclone portion to increase the flow rate of air introduced into the inlet of the primary cyclone Dust collector of vacuum cleaner.

Images