KR100645951B1 - Multi-cyclone dust collecting apparatus for vacuum cleaner - Google Patents

Abstract

A multi-cyclone dust collecting apparatus for a vacuum cleaner is provided to prevent the sucked and discharged air from being collided, thereby increasing collecting efficiency, and separate and remove the fine impurities by consecutively passing the sucked air through the first and second cyclone units. A multi-cyclone dust collecting apparatus for a vacuum cleaner comprises: a first cyclone unit(10) making the sucked air as the rising whirling air current, centrifugally separating the impurities contained in the air, and containing an air communicating member(40) where the intermediate clean air is discharged; a second cyclone unit(50) mounted under the first cyclone unit to contain plural second cyclones(60) for downwardly sucking the intermediate clean air and centrifugally separating the impurities remaining in the intermediate clean air; and an impurity discharge member(24) installed from the upper part of the second cyclone unit to the air communicating member so as to discharge the impurities separated from the second cyclone unit to the upper part of the air communicating member. The first cyclone unit contains a first cyclone body(20) where the sucked air is swirled, a first dust collecting chamber(30) for receiving the impurities discharged at the first cyclone body, and an air suction pipe(45) installed under the first cyclone body.

Description

Multi-cyclone dust collecting apparatus for vacuum cleaner

1 is a perspective view showing a multi-cyclone dust collector for a vacuum cleaner according to the present invention,

Figure 2 is an exploded perspective view of the multi-cyclone dust collector for the vacuum cleaner of Figure 1,

Figure 3 is a perspective view of the lower cover of the multi-cyclone dust collector for the vacuum cleaner of Figure 1,

4 is a cross-sectional view IV-IV of the multi-cyclone dust collector for the vacuum cleaner of FIG.

5 is a V-V cross-sectional view of the multi-cyclone dust collector for the vacuum cleaner of FIG.

6 is a view showing a state of discarding the collected dirt in the multi-cyclone dust collector for the vacuum cleaner of FIG.

7 is a view showing a vacuum cleaner having a multi-cyclone dust collector for a vacuum cleaner according to the present invention.

* Explanation of symbols for main parts of drawings *

1,101; Multi-cyclone dust collector 10; Primary cyclone unit

20; Primary cyclone body 21; Sidewall of the primary cyclone body

22; Bulkhead 24 of the primary cyclone body; Sewage outlet

30; Primary dust collection room 31; Primary dust collector

32; Top cover 37; Backflow prevention jaw

39; Concave space 40; Air communication member

43; Vent 50; Secondary cyclone unit

60; Secondary cyclone 61; Secondary cyclone body

64; Clearance 62; Secondary air intake

66; Air discharge pipe 70; Lower cover

73; Air passage 80; Secondary dust collection room

90; A dirt discharge member 91; Discharge

100; Vacuum cleaner 110; Suction brush

130; Vacuum cleaner main body 131; Vacuum generator

The present invention relates to a vacuum cleaner, and more particularly, to a multi-cyclone dust collector for separating and collecting dirt from the vacuum cleaner.

In general, the vacuum cleaner generates a suction force with a vacuum generator including an impeller and a motor. Then, air is sucked into the vacuum cleaner together with the dirt, dust, and the like (hereinafter referred to as 'dirt') on the surface to be cleaned by this suction force. The dirt and air to be sucked pass through the dust collector installed in the main body of the vacuum cleaner, and the dirt is separated and collected, and only air is discharged to the outside of the main body of the vacuum cleaner.

There are various dust collectors for collecting dust collected with air from air, such as dust bags and cyclone dust collectors. However, semi-permanent cyclone dust collectors are widely used these days.

Examples of cyclone dust collectors according to the prior art are described in Publication Nos. 2000-56658, 2000-56659, and the like. The cyclone dust collector according to the prior art has a cylindrical cyclone body in which sucked air and dirt form a swirling air flow, an air inlet port, and an air outlet port. The air inlet is installed along the tangential direction of the cyclone body on the upper side of the cyclone body so that the incoming air can be easily turned down. The air outlet is formed at the top of the cyclone body to guide the air back to the outside of the cyclone dust collector after dirt is removed while turning down inside the cyclone body.

However, in the conventional cyclone dust collector, since both the air inlet and the air outlet are formed in the upper portion of the cyclone body, the phenomenon that the air which descends and the rising air collides inside the cyclone body inevitably occurs. Therefore, in the conventional cyclone dust collector, there is a problem that the dust collection efficiency of the cyclone dust collector is lowered due to the collision of the above-mentioned rising air and the falling air.

In addition, the conventional cyclone dust collector has a problem that it is not able to completely filter out the fine dirt according to the structure or performance, and recently, the fine dirt contained in the air introduced in the application number 10-2003-62520 in two steps Multi-cyclone dust collector has been developed to improve the dust collection efficiency by filtering. However, in the case of the multi-cyclone dust collector as described above, there is still a problem that the collision of air occurs and thereby the dust collection efficiency is reduced, and the volume, especially the height of the multi-cyclone dust collector increases due to the increase in the number of cyclones. There was a problem.

In addition, in the conventional cyclone dust collector, since the waste container, in which the waste is collected, uses the same space as the cyclone body at the lower side of the cyclone body, the waste collected by the air descending and then rising again flows back to the air outlet. There was a problem that the dust collection efficiency was bad.

The present invention has been made in view of the above problems, and since the intake air and the discharged air do not collide, the dust collection efficiency is high, and a multi-cyclone dust collector for a vacuum cleaner capable of separating and collecting fine dust and having the same Its purpose is to provide a vacuum cleaner.

Another object of the present invention is to provide a multi-cyclone dust collector for a vacuum cleaner and a vacuum cleaner having the same, which can discharge the dirt to the top for convenient discharge of the dirt.

It is a further object of the present invention to provide a multi-cyclone dust collector which is compact, in particular, having reduced vertical height.

An object of the present invention as described above, the primary cyclone comprising an air communication member for making the waste containing air introduced from the lower side to the ascending swirling air and centrifuging the dirt contained in the waste containing air, the intermediate purification air is discharged unit; It is installed under the primary cyclone unit, and includes a plurality of secondary cyclones for sucking the intermediate purified air discharged through the air communication member to the lower side to create a rising swirling air to centrifuge the residue remaining in the intermediate purified air. A secondary cyclone unit; And a dirt discharge member installed inward of the air communication member at an upper side of the secondary cyclone unit so as to discharge the dirt separated from the secondary cyclone unit to the upper side of the air communication member. By providing a cyclone dust collector.

Here, the primary cyclone unit is formed in a hollow cylindrical shape, the primary cyclone body that the incoming dirt-containing air is rotated from the inside; A primary dust collecting chamber formed to surround the primary cyclone body and accommodating the dirt discharged from the primary cyclone body; And an air suction pipe installed below the primary cyclone body to allow incoming dirt-containing air to form an upward swirling airflow.

In addition, the air suction pipe is installed to communicate with each other in a tangential direction inclined upwardly to the primary cyclone body through the primary dust collecting chamber.

In addition, the primary cyclone body is formed on the upper portion of the side wall, it is preferable to further include a waste discharge port in which dirt separated from the waste-containing air is discharged to the primary dust collector.

The secondary cyclone unit may further include a secondary dust collecting chamber surrounded by the plurality of secondary cyclones and in which dirt discharged from the plurality of secondary cyclones is collected.

At this time, each of the plurality of secondary cyclones, the lower end is formed in a hollow cylindrical shape, the secondary cyclone body formed with a secondary air inlet through which intermediate purification air is introduced; And an air discharge pipe which protrudes from the center of the lower surface of the secondary cyclone body to an upper side in a hollow cylindrical shape and discharges purified air from the secondary cyclone body.

In addition, the multi-cyclone dust collector for a vacuum cleaner according to the present invention may be manufactured by integrally injection molding a plurality of secondary cyclone bodies and a waste discharge member.

In addition, the dirt discharge member, the dirt collection portion is provided below the air communication member, and formed in a dome shape covering the upper portion of the plurality of secondary cyclones; It is installed inside the air communication member, the upper end is extended to the upper end of the air communication member, the lower end is a discharge portion in communication with the dirt collection portion; includes.

The upper end of the primary cyclone unit is preferably covered with a removable top cover.

In another aspect of the present invention, an object of the present invention as described above, the secondary cyclone unit for separating the dirt from the outside air, and the secondary to separate the dust contained by rotating the air discharged from the primary cyclone unit again A multi-cyclone dust collector comprising a cyclone unit, wherein the primary cyclone unit and the secondary cyclone unit have at least one cyclone, and the entirety of the secondary cyclone unit is at least one cyclone of the primary cyclone unit. Provided therein, it is achieved by providing a multi-cyclone dust collector for a vacuum cleaner, characterized in that the lower surface of the primary cyclone unit and the lower surface of the secondary cyclone unit are on the same horizontal surface.

Here, the secondary cyclone unit has a plurality of cyclones arranged in a circular or C shape, the dust separated from at least one cyclone of the primary cyclone unit is discharged to the outer peripheral surface of the primary cyclone body Preferably, the dust separated from the plurality of cyclones of the secondary cyclone unit is discharged into a circular or C-type space surrounded by the plurality of cyclones.

In addition, the cyclone of the primary cyclone unit and the secondary cyclone unit flows air from the lower side of the side and discharges the lower portion of the central portion.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a multi-cyclone dust collector for a vacuum cleaner according to the present invention. However, in the following description of the present invention, if it is determined that the detailed description of the related known functions or components may unnecessarily obscure the subject matter of the present invention, the detailed description and specific illustration thereof will be omitted.

1 to 4, the multi-cyclone dust collector 1 for a vacuum cleaner according to the present invention includes a primary cyclone unit 10, a secondary cyclone unit 50, and a waste discharge member 90. do.

The primary cyclone unit 10 rotates by causing the air containing the dirt and dust sucked from the suction brush 110 (refer to FIG. 7) (hereinafter referred to as the dirt-containing air) to be drawn downward and to swing upward. The dirt contained in the dirt-containing air is separated by centrifugal force acting on the contained air. That is, the primary cyclone unit 10 centrifugally separates the dirt contained in the waste-containing air by making the waste-containing air introduced from the lower side into an upward swirling air stream.

The primary cyclone unit 10 includes a primary cyclone body 20, an air communication member 40, a primary dust collecting chamber 30, and an air suction pipe 45.

The primary cyclone body 20 is formed into a hollow cylindrical shape having a partition wall 22, and in the upper space 23 of the partition wall 22, dirt-containing air introduced through the air suction pipe 45 is pivoted and raised from the inside. Form a swirling air stream. In addition, a circular concave space 39 is formed below the partition wall 22 of the primary cyclone body 20 surrounded by the side wall 21 of the primary cyclone body 20. The secondary cyclone unit 50 is installed in this space 39.

The upper side of the primary cyclone body 20 is covered with an upper cover 32. Between the upper side of the side wall 21 of the primary cyclone body 20 and the upper cover 32, a dirt discharge port 24 through which the dirt separated from the air containing dirt by centrifugal force is discharged to the primary dust collecting chamber 30 is formed. . The upper cover 32 is preferably formed to be separated and coupled to the primary dust collector (31).

In addition, when the multi-cyclone dust collector 1 is inclined, the dust collected in the primary dust collecting chamber 30 is prevented from flowing back to the inside of the primary cyclone body 20 through the waste outlet 24. It is preferable to install the backflow prevention jaw 37 on the inner surface of the cover 32. The backflow prevention jaw 37 is preferably formed into a cylindrical shape larger than the diameter of the primary cyclone body 20.

The air communication member 40 discharges the air in which the dirt is removed from the dirt-containing air (hereinafter, referred to as intermediate purification air) by the centrifugal force in the primary cyclone body 20 to the secondary cyclone unit 50. The air communication member 40 is formed in a hollow cylindrical shape, and is installed to protrude upward from the center of the partition wall 22 of the primary cyclone body 20. At this time, the air communication member 40 is extended to reach the inner surface of the upper cover (32). Therefore, the upper end 41 of the air communication member 40 is blocked by the upper cover 32, and the lower end thereof is open. In addition, a plurality of exhaust holes 43 through which intermediate purified air is discharged are formed on the surface of the air communication member 40. The plurality of exhaust holes 43 are formed of numerous small holes to filter out large dirt moving along the intermediate purification air. At this time, the upper end 41 of the air communication member 40, as shown in this embodiment is installed only to contact the inner surface of the upper cover 32 is only one example, although not shown, the upper end 41 of the air communication member 40 It may be formed to be away from the upper cover 32 in this open state.

The primary dust collecting chamber 30 is installed to surround the primary cyclone body 20 and accommodates the dirt discharged by the centrifugal force from the primary cyclone body 20. The primary dust collecting chamber 30 surrounds the primary cyclone body 20 and includes a space between the primary dust collecting cylinder 31 formed in a cylindrical shape and the side wall 21 of the primary cyclone body 20. An upper cover 32 covering the upper end of the primary cyclone body 20 forms an upper surface of the primary dust collecting chamber 30. The lower end of the primary dust collecting chamber 30 is blocked by the lower cover 70 to be described later together with the secondary dust collecting chamber 80. Therefore, the lower cover 70 forms a lower surface of the primary dust collecting chamber 30.

The air suction pipe 45 communicates with the suction brush 110 and is installed below the primary cyclone body 20 so that the dirt-containing air introduced into the primary cyclone body 20 forms an upward swirling airflow. That is, the air suction pipe 45 is a tangent which is inclined upward with respect to the primary cyclone body 20 so that the dirt-containing air introduced from the suction brush 110 forms an upward swirling air flow in the primary cyclone body 20. It is installed to communicate with the primary cyclone body 20 in contact with the direction. In addition, the partition 22 of the primary cyclone body 20 to which the air suction pipe 45 is connected is formed with an inclined surface 27 that is inclined upward in the moving direction of the soil-containing air. The inclined surface 27 allows the dirt-containing air introduced into the primary cyclone body 20 through the air suction pipe 45 to easily form an upward turning airflow. At this time, the air suction pipe 45 is connected to the side wall 21 of the primary cyclone body 20 through the primary dust collecting chamber 30 from the bottom.

The secondary cyclone unit 50 is included in the intermediate purified air by centrifugal force acting on the intermediate purified air by turning the intermediate purified air discharged from the above-described primary cyclone unit 10 to enter and rise upward. The fine dirt is separated and the purified air is discharged to the vacuum generator 131 (see FIG. 7). At this time, the intermediate purification air contains fine dirt not removed from the primary cyclone unit 10, the secondary cyclone unit 50 removes the fine dirt remaining in the intermediate purification air by centrifugal force.

2 to 5, the secondary cyclone unit 50 includes a plurality of secondary cyclones 60 and a secondary dust collecting chamber 80.

The plurality of secondary cyclones 60 are installed below the primary cyclone unit 10, and suction the intermediate purified air discharged from the primary cyclone unit 10 downward to create an upward swirling airflow. The dirt remaining in the intermediate purification air is centrifuged by the centrifugal force acting on the swirling air, and the purified air is discharged from the plurality of secondary cyclones 60 to the vacuum generator 131 (see FIG. 7). At this time, the plurality of secondary cyclones 60 is installed to form a circle inside the side wall 21 of the primary cyclone body 20 as shown in FIG. In the case of this embodiment, eight secondary cyclones 60 are provided so as to form an approximately circle having the same center as the dirt discharge member 90.

Each of the plurality of secondary cyclones 60 includes a secondary cyclone body 61 and an air discharge pipe 66. The secondary cyclone body 61 has an open top and is molded into a hollow cylinder with a closed bottom. As shown in FIGS. 2 and 5, the plurality of secondary cyclone bodies 61 protrude from the outer periphery 93 of the dirt discharge member 90 with a portion 61a of the body, and adjacent two secondary cyclone bodies 61. 61 are provided to contact each other. In addition, the lower portion of the waste discharge member 90 is formed to cover the upper portion of the portion 61a protruding from the plurality of secondary cyclone bodies 61. Thus, the intermediate purified air flowing along the outer surface 92a of the dirt discharge member 90 is a space formed by two secondary cyclone bodies 61 and the side walls 21 of the primary cyclone body 20 adjacent to each other. The passage 73 is formed. In addition, a secondary air suction port 62 is formed at a lower portion of the secondary cyclone body 61 corresponding to the end of the air passage 73. Therefore, the intermediate purified air passing through the air passage 73 is introduced into the secondary cyclone body 61 through the secondary air suction port 62 to form an upward turning air stream.

The air discharge pipe 66 is installed in a hollow cylindrical shape so as to protrude upward from the center of the lower surface of the secondary cyclone body 61, and is in communication with the vacuum generator 131. The upper and lower ends of the air discharge pipe 66 are open, and the upper end of the air discharge pipe 66 is formed to have a lower height than the upper end of the secondary cyclone body 61. Therefore, the fine dust is removed by the centrifugal force inside the secondary cyclone body 61, and the purified air is discharged to the vacuum generator 131 through the air discharge pipe 66. At this time, although not shown, an air confluence member may be installed under the plurality of air discharge pipes 66 so that the air discharged through the plurality of air discharge pipes 66 may be collected into one and communicate with the vacuum generator 131.

The secondary dust collecting chamber 80 collects dirt discharged from the plurality of secondary cyclones 60 and is formed as a space surrounded by the plurality of secondary cyclones 60. That is, the secondary dust collecting chamber 80 is formed of a space in which a plurality of secondary cyclone bodies 61 installed to form an approximately circular surface forms a side surface, and the lower cover 70 forms a lower surface thereof. The secondary dust collecting chamber 80 is installed at the center of the lower cover 70 and includes a blocking protrusion 71 for preventing the movement of the collected dirt.

The lower cover 70 closes the lower ends of the primary dust collecting cylinder 31 and the primary cyclone body 20 to form a lower surface of the primary dust collecting chamber 30 and the secondary dust collecting chamber 80. In addition, as shown in FIG. 3, the air discharge pipe 66 of the secondary cyclone 60 is integrally formed with the lower cover 70 so that the lower cover 70 forms the lower surface of the secondary cyclone body 61. Do. As such, when the lower cover 70 and the air discharge pipe 66 are integrally formed, injection molding is convenient.

The dirt discharge member 90 has an inner side of the air communication member 40 on the upper side of the secondary cyclone unit 50 so as to discharge the dirt separated from the secondary cyclone unit 50 to the upper side of the air communication member 40. Is installed. The dirt discharge member 90 has a rough funnel shape and is composed of a dirt collection unit 92 and a discharge unit 91. The dirt collection unit 92 is installed below the air communication member 40 and is formed in a dome shape covering the upper portions of the plurality of secondary cyclones 60. The dirt collection unit 92 serves to collect dirt falling from the secondary dust collecting chamber 80 when the multi-cyclone dust collector 1 is turned upside down. The discharge part 91 is installed inside the air communication member 40, and the upper end 95 of the discharge part 91 extends to the upper end 41 of the air communication member 40 and the discharge part 91. The lower end is in communication with the upper end of the dirt collection unit 92. Discharge part 91 is formed in a cylindrical shape, it is preferable that the air communication member 40 is installed concentrically. Discharge part 91 serves to discharge the dirt collected in the dirt collection unit 92 to the upper side of the air communication member (40). Therefore, when the multi-cyclone dust collector 1 is turned over, dirt collected in the secondary dust chamber 80 is moved toward the upper cover 32 through the dirt discharge member 90.

In addition, the outer surface 92a of the dirt discharge member 90 serves to guide the intermediate purified air introduced into the air communication member 40 to the plurality of secondary cyclones 60. That is, the intermediate purification air is provided on the sidewalls 21 of the plurality of secondary cyclone bodies 61 and the primary cyclone body 20 along the outer surface 92a of the dirt collection portion 92 of the dirt discharge member 90. It is distributed to the air passage 73 formed by the secondary air inlet 62 formed in each of the plurality of secondary cyclone body 61 is drawn. In addition, when manufacturing the waste discharge member 90 by injection molding, it is preferable to form the waste discharge member 90 and the plurality of secondary cyclone bodies 61 integrally as in the present embodiment (FIG. 2). Reference).

In addition, in order to smoothly flow the intermediate purified air flowing between the partition 22 of the primary cyclone body 20 and the waste discharge member 90, the partition 22 of the primary cyclone body 20 is soiled. It is preferable to mold in a dome shape corresponding to the shape of the dirt collection portion 92 of the discharge member 90. That is, the partition wall 22 of the primary cyclone body 20 is formed to maintain a constant distance upward from the dirt collection portion 92 of the dirt discharge member 90 as shown in FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation and operation of the multi-cyclone dust collector 1 for a vacuum cleaner according to the present invention.

When the vacuum cleaner is operated, the vacuum generator 131 (see FIG. 7) is operated to generate suction force. By this suction force, air containing dirt (hereinafter, air containing dirt) is sucked into the suction brush 110 (refer to FIG. 7) from the surface to be cleaned. The dirt-containing air sucked into the suction brush 110 moves to the multi-cyclone dust collector 1 communicated with the suction brush 110 through the communication means 121 and 122 (see FIG. 7).

The dirt-containing air moving to the multi-cyclone dust collector 1 is introduced into the primary cyclone body 20 through the air suction pipe 45 of the primary cyclone unit 10. The dirt-containing air introduced through the air suction pipe 45 forms a rising swirling air flow that swings inside the primary cyclone body 20 and rises. At this time, since the inclined surface 27 is provided in the partition 22 in front of the air suction pipe 45 to the inside of the cyclone body 20, the incoming intermediate purified air easily forms an upward turning air stream. The dirt is then separated from the dirt-containing air by centrifugal force acting on the rising swirl airflow. The separated dirt is discharged and accumulated in the primary dust collecting chamber 30 through the waste discharge port 24 provided between the upper end of the primary cyclone body 20 and the upper cover 32 as shown by arrow A of FIG. 4. Since the primary dust collecting chamber 30 is isolated from the swirling airflow by the side wall 21 of the primary cyclone body 20, the collected dirt does not affect the rising swirling airflow in the primary cyclone body 20. In addition, since the air introduced into the primary cyclone body 20 to form an upward swirling air flows out through the plurality of exhaust ports 43 of the air communication member 40, the air in the primary cyclone body 20 No crash Therefore, the dust collection efficiency of the multi-cyclone dust collector 1 is improved.

Air (intermediate purification air) from which dirt is removed from the primary cyclone body 20 flows toward the secondary cyclone unit 50 through a plurality of exhaust ports 43 formed in the air communication member 40. At this time, since the dirt discharge member 90 is installed inside the air communication member 40, the intermediate purifying air is formed on the inner surface of the air communication member 40 and the outer surface of the discharge part 90 of the dirt discharge member 90 ( 92a). The intermediate purified air passing through the air communication member 40 is connected to the plurality of air passages 73 provided in the lower portion of the dirt collection unit 92 along the outer surface 92a of the dirt discharge member 90 and the dirt collection unit 92. And is drawn into the secondary air intake 62 of each of the plurality of secondary cyclones 60.

The intermediate purified air drawn into the secondary air inlet 62 forms an upward swirling air flow inside the secondary cyclone body 61. Then, fine dirt is separated from the intermediate purification air by centrifugal force acting on the rising swirl airflow. The separated fine dirt is discharged to the secondary dust collecting chamber 80 through the gap 64 between the inner surface 92b of the dirt collecting member 90 and the upper surface of the secondary cyclone body 61. And stacked (see arrow B in FIG. 4). At this time, since the secondary dust collecting chamber 80 is isolated by the secondary cyclone body 61, the separated dirt does not affect the rising swirl airflow in the secondary cyclone body 61. In addition, since the air introduced into the secondary cyclone body 61 to form an upward swirling air flows straight out through the air discharge pipe 66, the collision of air does not occur in the secondary cyclone body 61. Therefore, the dust collection efficiency of the multi-cyclone dust collector 1 is improved.

The purified air from which fine dirt is removed while turning up and down in the secondary cyclone body 61 is discharged through the air discharge pipe 66. In the plurality of secondary cyclones 60, fine dirt is removed from the intermediate purified air by the same operation as described above, and the purified air is discharged through the plurality of air discharge pipes 66. The air discharged to the air discharge pipe 66 passes through the vacuum generator 131 and is discharged to the outside of the vacuum cleaner body 130.

If an air confluence member (not shown) is provided below the plurality of air discharge pipes 66, the purified air discharged through each of the air discharge pipes 66 of the plurality of secondary cyclones 60 is air. After being gathered into one by the joining member, it is discharged toward the vacuum generator 131.

When the primary dust collecting chamber 30 or the secondary dust collecting chamber 80 is filled with dirt, it is necessary to empty the primary dust collecting chamber 30 and the secondary dust collecting chamber 80. In order to empty the primary and secondary dust collection chambers 30 and 80, the user first opens the upper cover 32 covering the upper end 95 of the primary dust collection chamber 30 and the dirt discharge member 90. Open. Next, as shown in FIG. 6, when the multi-cyclone dust collector 1 is inverted, dirt accumulated in the primary dust collecting chamber 30 and the secondary dust collecting chamber 80 can be discarded. At this time, the fine dust collected in the secondary dust collecting chamber 80 is discharged to the outside along the inner surface 92b of the waste collection unit 92 and the discharge unit 91 of the waste discharge member (90). Thus, the structure that can discard the collected waste by opening the upper cover 32, because the user can discard while watching the waste, it is convenient to discharge the waste compared to the structure to open the lower cover 70 to discharge the waste.

In the vacuum cleaner multi-cyclone dust collector 1 according to the present invention, since the backflow prevention jaw 37 is provided on the upper cover 32, the primary dust chamber when the multi-cyclone dust collector 1 is inclined. It is possible to reduce backflow of the waste collected at 30 to the primary cyclone body 20 through the waste outlet 24.

Hereinafter, the Example of the vacuum cleaner 100 provided with the multi cyclone dust collector 1 which concerns on this invention is described.

Referring to FIG. 7, the vacuum cleaner 100 according to an embodiment of the present invention includes a suction brush 110, an extension tube 121, a flexible hose 122, and a cleaner body 130.

The suction brush 110 has a dirt suction port for suctioning air (dirt containing air) including dirt from the surface to be cleaned on the bottom surface.

The extension tube 121 and the flexible hose 122 communicate with the suction brush 110 and the cleaner body 130, and a handle 120 is provided at an upper end of the extension tube 121. The handle 120 is usually provided with a power switch 123 for turning on the power of the vacuum cleaner (100).

The cleaner body 130 includes a vacuum generator 131 and a multi-cyclone dust collector 101. The vacuum generator 131 generates a suction force for sucking dirt-containing air into the suction brush 110 and is in communication with the multi-cyclone dust collector 101. The multi-cyclone dust collector 101 separates and collects the dirt from the dirt-containing air sucked from the suction brush 110. The multi-cyclone dust collector 101 is composed of a primary cyclone unit that separates and collects relatively large dirt by a rising swirl airflow, and a secondary cyclone unit that separates and collects fine dirt. Since the structure and operation of the multi-cyclone dust collector 101 is the same as the multi-cyclone dust collector 1 described above, a detailed description thereof will be omitted.

Therefore, if the suction brush 110 is moved after the power switch 123 of the vacuum cleaner 100 is turned on, dirt on the surface to be cleaned is sucked into the dirt suction port of the suction brush 110 by the suction force of the vacuum generator 131. Is inhaled. The dirt sucked into the suction brush 110 is introduced into the multi-cyclone dust collector 101 through the extension pipe 121 and the flexible hose 122. The dirt introduced into the multi-cyclone dust collector 101 is separated and collected by the primary and secondary cyclone units 10 and 50 (see FIG. 4) and then discharged to the outside of the cleaner body 130.

In the above description, the canister type vacuum cleaner has been described as an example of the vacuum cleaner having the multi-cyclone dust collector according to the present invention. In addition, the multi-cyclone dust collector according to the present invention can be applied to various types of vacuum cleaners, such as an upright vacuum cleaner. have.

As described above, according to the multi-cyclone dust collector for a vacuum cleaner and the vacuum cleaner having the same according to the present invention, since the air sucked in the primary cyclone unit and the secondary cyclone unit does not collide with the dust collecting efficiency, high.

In addition, the multi-cyclone dust collector for vacuum cleaners and vacuum cleaners having the same according to the present invention, after the large soil is separated while the soil-containing air passes through the primary cyclone unit, is continuously passed through the secondary cyclone unit again. Because it is configured to separate, fine dirt can be separated / collected.

In addition, the multi-cyclone dust collector for vacuum cleaners and vacuum cleaners having the same according to the present invention are separated from the space in which the rising swirling air is formed and the space in which the dirt is collected in both the primary and secondary cyclone units. High collection efficiency for separating and collecting.

In addition, since the multi-cyclone dust collector according to the present invention can be made by integrally injection molding the waste discharge member 90, the plurality of secondary cyclone bodies 61, and the lower cover 70 and the air discharge pipe 66 integrally. Reduced assembly labor

In addition, since the secondary cyclone unit is installed inside the primary cyclone unit and the lower end thereof is located on the same plane, the multi-cyclone dust collector according to the present invention is compact. In particular, it is possible to reduce the height of the multi-cyclone dust collector.

In addition, the multi-cyclone dust collector for vacuum cleaners and vacuum cleaners having the same according to the present invention are provided with a backflow prevention jaw to prevent dirt collected in the primary dust chamber from flowing back to the primary cyclone body even when the vacuum cleaner is turned over. can do.

In addition, since the multi-cyclone dust collector for the vacuum cleaner according to the present invention has a structure in which the top cover is opened, turned upside down and the waste is discarded, it is convenient to discard the waste collected in the primary and secondary dust chambers.

The present invention is not limited to the specific embodiments described above, but can be performed by a person skilled in the art to which the present invention pertains without departing from the spirit of the present invention described in the claims below. Substitutions, additions, deletions, and alterations fall within the scope of the claims.

Claims (12)

A primary cyclone unit including an air communication member through which intermediate waste air is discharged by centrifuging the waste contained in the waste-containing air into an upward turning air stream; It is installed under the primary cyclone unit, and includes a plurality of secondary cyclones for sucking the intermediate purified air discharged through the air communication member to the lower side to create a rising swirling air to centrifuge the residue remaining in the intermediate purified air. A secondary cyclone unit; And And a dirt discharge member installed inward of the air communication member at an upper side of the secondary cyclone unit so as to discharge the dirt separated from the secondary cyclone unit to the upper side of the air communication member. Multi-cyclone dust collector for cleaners. The method of claim 1, wherein the primary cyclone unit, A primary cyclone body is formed into a hollow cylindrical shape, the incoming dirt-containing air pivots from the inside; A primary dust collecting chamber formed to surround the primary cyclone body and accommodating the dirt discharged from the primary cyclone body; And And an air suction pipe installed under the primary cyclone body and configured to allow incoming dirt-containing air to form an upward swirling airflow. The method of claim 2, wherein the air suction pipe, A multi-cyclone dust collector for a vacuum cleaner, characterized in that it is installed so as to communicate with each other in a tangential direction inclined upward to the primary cyclone body through the primary dust chamber. The method of claim 2, wherein the primary cyclone body, It is formed on the upper side of the side wall, the multi-cyclone dust collector for a vacuum cleaner, characterized in that it further comprises a waste discharge port discharged from the waste-containing air to the primary dust collector. The method of claim 2, wherein the secondary cyclone unit, And a secondary dust collecting chamber surrounded by the plurality of secondary cyclones, and the wastes discharged from the plurality of secondary cyclones are collected. The method of claim 5, wherein each of the plurality of secondary cyclones, A secondary cyclone body formed with a hollow cylindrical shape having a lower end, and having a secondary air inlet through which intermediate purified air is introduced; And And a hollow cylindrical shape protruding from the center of the lower surface of the secondary cyclone body to the upper side, and an air discharge pipe through which the purified air is discharged from the secondary cyclone body. The multi-cyclone dust collector for a vacuum cleaner of claim 6, wherein the plurality of secondary cyclone bodies and the waste discharge member are integrally injection molded. According to claim 1, wherein the dirt discharge member, A dirt collection part installed below the air communication member and formed in a dome shape covering an upper portion of the plurality of secondary cyclones; And It is installed inside the air communication member, the upper end extends to the upper end of the air communication member, the lower end is a multi-cyclone dust collector for a vacuum cleaner comprising a; discharge portion in communication with the. The method of claim 2, wherein the upper end of the primary cyclone unit, Multi-cyclone dust collector for vacuum cleaners, characterized by a cover covered with a removable top cover. In a multi-cyclone dust collector for a vacuum cleaner comprising a primary cyclone unit for separating dirt from external air, and a secondary cyclone unit for separating the dust contained by rotating the air discharged from the primary cyclone unit again, The primary cyclone unit and the secondary cyclone unit have at least one cyclone, the entirety of the secondary cyclone unit is installed inside at least one cyclone of the primary cyclone unit, And a lower surface of the primary cyclone unit and a lower surface of the secondary cyclone unit are on the same horizontal plane. The method of claim 10, wherein the secondary cyclone unit, Having a plurality of cyclones arranged in a circular or C shape, The dust separated from at least one cyclone of the primary cyclone unit is discharged to the outer peripheral surface of the primary cyclone body, and the dust separated from the plurality of cyclones of the secondary cyclone unit is circular or surrounded by the plurality of cyclones or Multi-cyclone dust collector for a vacuum cleaner, characterized in that discharged to the C-type space. The method of claim 10 or 11, The cyclone of the primary cyclone unit and the secondary cyclone unit is a multi-cyclone dust collector for a vacuum cleaner, characterized in that the air flows in from the lower side of the lower side to the central portion.

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