KR100640903B1 - Cyclone Collector - Google Patents

Abstract

The present invention relates to a cyclone dust collector. The present invention provides a secondary cyclone having a primary cyclone having a primary inlet for sucking contaminated air, and a secondary inlet installed inside the primary cyclone, and having a secondary inlet for sucking air discharged from the primary cyclone. It is configured to include a clone, the secondary inlet is formed in the outer guide extending to the outside of the body of the secondary cyclone, and at least one opening formed along the body at the rear end of the outer guide and having a predetermined length It provides a cyclone dust collector comprising a.

Cyclone, Dust Collector

Description

Cyclone Dust Collector {Cyclone Collector}

Figure 1 is a longitudinal sectional view schematically showing a conventional cyclone dust collector

Figure 2 is a partially cut perspective view showing an embodiment of a cyclone dust collector according to the present invention

Figure 3 is a partially cutaway perspective view showing the main portion of Figure 2 separated

4 is a longitudinal cross-sectional view of FIG.

5 is a perspective view of the filter of FIG.

6 is a view showing the shape of the hole of the filter of FIG.

7 is a view for explaining the operation principle of the boundary member of FIG.

8 to 9 are cross-sectional views schematically showing another embodiment of the boundary member of FIG.

10 is a partial cutaway perspective view schematically showing another embodiment of the boundary member of FIG.

FIG. 11 is a detailed perspective view of the secondary cyclone of FIG. 2. FIG.

12 is a cross-sectional view of FIG. 11

13 and 14 are perspective views schematically showing another embodiment of the secondary inlet of FIG.

15 is a plan view of the conical part of the secondary cyclone of FIG.

16A-16C are partial plan views illustrating various modifications of the slit of FIG. 15.

FIG. 17 illustrates various shapes of the slit of FIG. 15.

18 is a perspective view schematically showing the rotational flow preventing member of FIG.

19 to 21 are perspective views schematically showing various embodiments of the anti-rotation member of FIG.

22 and 23 are perspective views showing another embodiment of the discharge electrode of FIG.

<Description of Symbols for Major Parts of Drawings>

30: 1st cyclone 50: 2nd cyclone

90: secondary dust container 60: filter

70: boundary member 40: re-scattering member

500: secondary inlet 80: discharge member

20: rotational flow prevention member

The present invention relates to a cyclone dust collector, and more particularly, to a multiple cyclone dust collector used by connecting a plurality of cyclones. The cyclone dust collector according to the present invention is not limited to a vacuum cleaner, but is particularly suitable for use in a vacuum cleaner.

A cyclone collector is a device that collects dust, dirt, etc. (hereinafter referred to as "dust") contained in the air by using the cyclone principle. Cyclone dust collectors are used in various fields, and are mainly applied to vacuum cleaners for home use.

Recently, a multiple cyclone collector (Dual Cyclone Collector) is used to connect a plurality of cyclone dust collector to improve the dust collection performance. That is, in the multi-cyclone dust collector, an upstream cyclone that collects relatively large dust by inhaling air containing dust (hereinafter referred to as "dirty air"), and connected to the upstream cyclone And a downstream cyclone that collects relatively small dust. Usually, in the multiple cyclone dust collector, one upstream cyclone and one downstream cyclone are used. An example of such a multi-cyclone dust collector is disclosed in EP 0923992 A2 and the like.

Referring to Figure 1, a conventional multi-cyclone dust collector is described as follows.

The multi-cyclone dust collector is connected to the cyclone 3 (hereinafter referred to as "primary cyclone") that collects relatively large dust by sucking in polluted air from the outside, and the relatively small dust connected to the primary cyclone 3. It consists of a cyclone (5) (hereinafter referred to as "secondary cyclone") to collect.

It will be described in detail as follows.

The upper part of the primary cyclone (3) is formed with an inlet (3a) for introducing external polluted air in a tangential direction, the secondary cyclone (5) is provided inside.

On the other hand, the secondary cyclone 5 also has an inlet 5a and an outlet 8. The inlet 5a of the secondary cyclone 5 may be the same as the air inlet 3a of the primary cyclone 3 or may be changed. For example, EP 0923992 A2 discloses an inlet for a secondary cyclone consisting of a plurality of slits.

Meanwhile, a shroud 7 having a plurality of through holes is provided between the primary cyclone 3 and the secondary cyclone 5. In addition, a secondary cyclone dust container 9 is installed below the secondary cyclone 5.

Referring to the operation of the conventional multi-cyclone dust collector described above is as follows.

First, when the multi-cyclone dust collector is operated to drive the suction force generating means, for example, the suction fan (not shown) of the vacuum cleaner, external polluted air is discharged through the primary cyclone inlet 3a. It flows into the clone 3. At this time, the contaminated air is sucked along the tangential direction, and is rotated on the inner wall surface of the body of the primary cyclone (3), in this process dust is separated by centrifugal force.

At this time, the relatively large and heavy dust is collected in the lower portion of the primary cyclone (3), the fine dust that is not separated by turning inside the primary cyclone (3) and rises through the through hole of the shroud (7) 2 To the secondary cyclone (5).

That is, air containing fine dust not separated from the primary cyclone 3 (hereinafter referred to as “partially contaminated air”) is discharged through the secondary cyclone through the through hole of the shroud 7 and the inlet 5a for the secondary cyclone. It flows into the clone 5. Therefore, dust and the like are once again separated from the secondary cyclone 5 and the purified air is discharged to the outside through the outlet 8.

However, the above-described conventional multi-cyclone dust collector had the following problems.

First, the conventional multi-cyclone dust collector has a problem that it is difficult to obtain the desired dust collection efficiency and suction power as a whole.

Second, in the related art, it is difficult to obtain a sufficient centrifugal force in the secondary cyclone, and thus there is a problem in that dust collection efficiency of the secondary cyclone decreases.

Third, in the conventional multi-cyclone dust collector, there is a problem that the dust collected in the primary cyclone may move back to the secondary cyclone.

The present invention is to solve the above-mentioned problems, the object of the present invention is to provide a cyclone dust collector that can improve the overall dust collection efficiency.

Another object of the present invention to provide a cyclone dust collector that can improve the suction power.

Still another object of the present invention is to provide a cyclone dust collector which can improve the dust collection efficiency and the suction work rate of the secondary cyclone.

Another object of the present invention to provide a cyclone dust collector that can effectively prevent the re-splash of dust collected in the primary cyclone.

In order to achieve the above object, the present invention includes a primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking air discharged from the primary cyclone, the secondary inlet is the body of the secondary cyclone Provides a cyclone dust collector comprising an outer guide extending to the outside of the at least one opening formed along the body at the rear end of the outer guide and having a predetermined length.

Therefore, according to the present invention described above, it is possible to increase the dust collection efficiency and the suction work rate, in particular, the dust collection efficiency and the suction work rate of the secondary cyclone. In addition, according to the present invention, it is possible to effectively prevent the re-scattering of the dust collected in the primary cyclone.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described.

First, referring to Figures 2 to 4, the overall configuration of the cyclone dust collector according to the present invention will be described.

The cyclone dust collector includes a primary cyclone 30 and a secondary cyclone 50 installed inside the primary cyclone 30.

The primary cyclone 30 is constructed similarly to the prior art. That is, the inlet 32 (hereinafter referred to as "first inlet" for convenience) is formed in the upper portion of the body of the primary cyclone 30 is introduced. In addition, an inlet 500 (hereinafter, referred to as a “second inlet”), through which the air flowing in the primary cyclone 30 is sucked, is formed at an upper portion of the secondary cyclone 50, and an upper portion thereof. In the center is provided a discharge member 80 that serves as an outlet for discharging air to the outside. And, the lower portion of the discharge member 80 is preferably provided with a rotation flow prevention member 20 to prevent the rotation of the flow.

The lower part of the primary cyclone 30 is a space in which dust collected in the primary cyclone 30 is collected, that is, a dust bin for the primary cyclone, and the separation member 10 is preferably installed in this portion. This is because, by the separating member 10, dust can be collected smoothly and dust can be prevented from scattering efficiently. In addition, it is preferable that the secondary cyclone dust container 90 is installed below the secondary cyclone 50.

On the other hand, it is preferable that the boundary member 70 is provided between the primary cyclone 30 and the secondary cyclone 50. As described above, the lower portion of the primary cyclone 30 is a space where dust is collected, and the dust in the air introduced into the primary cyclone 30 is a dust collecting space (ie, the lower portion of the primary cyclone 30). Dust is collected and air rises again. The boundary member 70 mainly serves to define a flow space and a dust collection space. In addition, the boundary member 70 serves to guide the flow and prevent the separated dust from scattering again.

On the other hand, it is preferable that the re-scattering prevention member 40 is installed inside the primary cyclone 30 to prevent dust collected at the bottom of the primary cyclone 30 from re-flying along the upward airflow. In addition, the second inlet 500 of the secondary cyclone 50 is preferably provided with a filter 60 for separating large foreign matter such as paper.

Each component will be described in detail as follows.

First, the filter 60 will be described.

The filter 60 is installed outside the secondary cyclone 50, that is, the second inlet 500, so that relatively large ones such as hair, paper, and the like are disposed in the secondary cyclone 50. To prevent ingress. The filter 60 is preferably a porous sieve (mesh) having a plurality of holes. In addition, the filter 60 is preferably configured to have a cylindrical or conical shape. Further, the cone is more preferably inclined upward.

On the other hand, as shown in FIG. 5, it is preferable that the block part 64 in which the hole 62 is not formed in the predetermined part of the filter 60 is formed. For example, the hole 62 may not be formed in a portion located close to the first inlet 32 of the primary cyclone 30. In this way, the dust and air that enters at a high speed through the first inlet 32 can be prevented from directly entering the secondary cyclone 50 without passing through the primary cyclone 30, thereby improving dust separation efficiency. have.

6, the shape of the hole 62 of the filter 60 is not limited to a specific shape, It is possible to use various shapes. According to the experiment of this invention, the shape formed long in the horizontal direction was preferable.

Next, FIG. 7 is a schematic diagram for explaining the boundary member. Referring to this, the boundary member 70 will be described in detail as follows.

As described above, the boundary member 70 mainly functions to substantially distinguish a space in which the air introduced into the primary cyclone 30 rotates and then descends and rises again, that is, a flow space and a dust collecting space. The boundary member 70 may be configured in a conical or flat shape. And, as shown in Figure 7, if the boundary member 70 has a predetermined inclination from the top to the bottom serves to guide the flow introduced into the primary cyclone (30). In addition, when the flat plate or the lower portion has a large shape, it also serves to prevent the dust separated from the primary cyclone 30 from scattering again.

It will be described in detail as follows.

The boundary member 70 preferably extends from the outside of the secondary cyclone 50 to the inside of the primary cyclone 30. In addition, one side of the boundary member 70 is in contact with the outer side of the secondary cyclone 50, and the other side is preferably spaced apart from the inner side of the primary cyclone 30 by a predetermined distance (C). In other words, the boundary member 70 is conical and more preferably inclined downward. In this configuration, the dust separated in the flow space can cause the dust collecting space, that is, the primary cyclone 30 to fall well. In addition, the dust collected on the lower portion of the primary cyclone (30) is also effective to prevent the scattering. In addition, the predetermined position of the boundary member 70 is preferably supported in contact with the upper portion of the dust container 90 for the secondary cyclone 50. As shown in FIG. 8, the tip 74 of the boundary member 70 may be oriented in the vertical direction in order to more effectively prevent dust scattering. In addition, it is preferable that an opening 72 having a predetermined shape is formed at a predetermined position of the boundary member 70, preferably at the front end portion thereof (see Figs. 2 and 3), because the inner wall of the primary cyclone 30 This is because a relatively large amount of dust or the like falling to the lower portion of the primary cyclone can be smoothly lowered using the opening 72 only by the interval C between the boundary members 70.

On the other hand, the boundary member 70 is preferably used a material or structure that is bent to the bottom and not to the top. That is, it is preferable that the boundary member 70 is configured to move downward when the force is applied from the upper part, and to resist movement to the upper part when the force is received from the lower part. In this case, the tip of the boundary member 70 may contact the inner wall of the primary cyclone 30. With this configuration, it is possible to enter dust from the upper part to the lower part, and it is difficult to move the dust from the lower part to the upper part, thereby effectively preventing the dust from scattering again.

In addition, as shown in FIG. 9, it is also possible to further form an auxiliary member 78 which functions to bend downward at a portion of the boundary member 70, that is, at the tip. Also in this case, the tip of the auxiliary member 78 may be in contact with the inside of the primary cyclone 30.

On the other hand, as shown in Figure 10, the boundary member 70 can be configured in a spiral. When configured in this way, it is easy for dust to enter, but once the dust is re-scattered from the lower portion of the primary cyclone 30, the flow path is formed in reverse when it does not come out easily. Even in this case, the tip of the boundary member 70 may contact the inside of the secondary cyclone 50.

On the other hand, the inside of the primary cyclone 30 may be further provided with a re-scattering prevention member 40 for preventing the dust collected in the lower portion of the primary cyclone 30 to scatter again. The re-scattering preventing member is preferably in the shape of a ring, and more preferably inclined downward. (See FIGS. 2 and 3) The re-scattering preventing member 40 includes a primary cyclone 30 and a secondary cyclone 50. It is possible to install at least one place.

If comprised in this way, the fine dust collected by the lower part of the primary cyclone 30 can be prevented from scattering again. In addition, relatively large dust particles may help to move to the bottom of the primary cyclone (30).

Referring to Figure 7, the separation member 10 is described as follows.

The separating member 10 is installed at the lower portion of the primary cyclone 30, that is, in the space where dust is collected. Because the dust collected in the lower portion of the primary cyclone 30 is still rotated, there is a fear of scattering again. Therefore, if the separation member 10 is installed at the lower portion of the primary cyclone 30 to prevent the rotation of the air, it is possible to effectively prevent dust scattering again.

Separation member 10 is installed in the radial direction of the primary cyclone 30 is preferably a partition wall. A plurality of separation members 10 can be installed, it is preferable that the two crosses orthogonal. In addition, the length of the separating member 10 is preferably smaller than the diameter of the primary cyclone 30, and is about the diameter of the dust container for the secondary cyclone 50.

In addition, the separating member 10 is coupled between the bottom of the primary cyclone 30 and the bottom surface of the dust bin of the secondary cyclone 50, the dust bin of the primary and secondary cyclone 50 once It can also play a role in making it empty.

Next, referring to FIG. 11, the secondary cyclone 50 will be described in detail as follows.

In FIG. 11, the body of the secondary cyclone 50 includes a cylindrical portion 52 and a conical portion 54 extending downward from the cylindrical portion 52. However, the present invention is not limited to this. That is, the secondary cyclone 50 may be formed of at least one combination of the cylindrical portion and the conical portion. However, when the secondary cyclone 50 is composed of the cylindrical portion and the conical portion, the cylindrical portion 52 ) Is relatively longer than the conical portion 54, the lower end of the discharge member 80 is more preferably located inside the cylindrical portion (52).

11 and 12, the secondary inlet 500 for introducing air into the secondary cyclone 50 will be described in detail as follows.

The secondary inlet 500 has an outer guide 510 extending outward of the body (cross section of the body) of the secondary cyclone 50 and a trailing edge 518 (trailing edge) of the outer guide 510. Is formed along the body and includes at least one opening 530 (opening) having a predetermined length. Furthermore, it is preferable that an inner guide 520 is further formed extending from the end point 536 of the opening 530 to the inside of the body. In this configuration, the outer guide 510 may prevent unwanted flow, that is, non-rotating or counter-rotating flow, from flowing into the secondary cyclone 50. Unexplained reference numeral 538 is the start point of the opening 530, and 516 is the leading edge of the inner guide 510.

On the other hand, the opening 530 of the secondary inlet 500 may be composed of a plurality, preferably two. In this case, the openings 530 are preferably arranged at equal intervals, and more preferably symmetrical to each other. In addition, an auxiliary guide 550 may be formed at a lower portion of the outer guide 510, and a lower portion of the auxiliary guide 550 may also be connected to the body of the secondary cyclone 50. 11)

On the other hand, the geometric shape and structure of the outer guide 510 and the inner guide 520 will be described in detail as follows.

As shown in FIG. 13, at least one of the upper and lower portions of the outer guide 510 is preferably formed with an upper connection portion 544 and a lower connection portion 542 connected to the body of the secondary cyclone 50. Do. This arrangement can guide the air flow more smoothly.

As shown in FIG. 14, at least one of the outer guide 510 and the inner guide 520 is preferably formed to be corrugated. That is, when the valleys 512 are formed in the outer guide 510 and the inner guide 520, a flow path is formed along the valleys 512, and flow can be introduced more quickly and consistently.

On the other hand, the outer guide 510 extends in the tangential direction, the inner guide 520 is preferably parallel to the outer guide 510. In addition, at least one of the outer guide 510 and the inner guide 520 preferably has a predetermined curvature based on at least one direction of the axial direction and the direction perpendicular to the secondary cyclone 50. That is, the outer guide 510 and the inner guide 520 may be configured in a straight line to a curved line. In this case, the curvature of the outer guide 510 and the inner guide 520 is preferably configured to be substantially the same.

Referring to Figure 15, the lower portion of the body of the secondary cyclone 50 will be described in detail.

It is preferable that the slit 56 is formed under the secondary cyclone 50. In addition, the slit 56 is more preferably formed along the axial direction. Since the fine dust collected in the secondary cyclone 50 may be discharged to the outside through the slit 56, the dust collection performance is improved.

As shown in FIG. 16, the slit 56 is preferably formed to be inclined at a predetermined angle in the direction of the central axis of the secondary cyclone 50. In detail, as shown in FIG. 16A, the slit 56 may be formed to have a structure inclined at a predetermined angle in the central axis of the secondary cyclone 50. In this configuration, it is possible to prevent the flow back through the slit 56 to improve the dust separation performance. In addition, as shown in FIG. 16B, the slit 56 may incline only one surface. In this way, the mass productivity of the slit can be improved. In addition, as shown in FIG. 16C, the inclinations of both surfaces of the slit 56 may be separated from each other, that is, a structure that opens toward the central axis direction of the secondary cyclone 50. If comprised in this way, the mass productivity of the slit 56 can be improved. And as shown in FIG. 17, the shape of the slit 56 is not limited.

On the other hand, the lower portion of the body of the secondary cyclone 50 is blocked, it is preferable that the opening 58 is formed on the upper side of the lower portion of the body. In the conventional cyclone device, especially the multi-cyclone device, it was thought that the lower part of the secondary cyclone 50 should be blocked, but according to the research of the present inventors, the lower part of the body of the secondary cyclone 50 is blocked and It is also possible to form the opening 58 above the lower part. In this case, it is preferable to form the slit 56, and in the case of forming the slit 56, the area of the opening 58 is preferably larger than the area of the slit 56.

Referring to Figure 18, the rotational flow prevention member 80 is described as follows.

It is preferable that the rotational flow prevention member 20 is installed on the discharge passage through which air is discharged from the secondary cyclone 50 to the outside. It is preferable to apply a high voltage to the rotational flow preventing member 20 so as to have a potential difference with an adjacent member. In this configuration, the dust or the like not separated from the secondary cyclone 50 is collected by the electrostatic precipitating principle while passing through the discharge member. That is, the separation performance can be improved by charging the particles by high voltage discharge.

Meanwhile, although FIG. 18 illustrates that the rotational flow preventing member 20 has two blades crosswise, the present invention is not limited thereto. For example, as shown in FIG. 19, it is also possible to comprise the blade | wing side 20a of saw blade shape. In addition, as shown in Fig. 20, it is also possible to set the number of blades to four or more for uniform discharge in space.

On the other hand, as shown in Figure 21, it is also possible to provide a separate or additional discharge electrode 22 to the rotational flow prevention member 20. 22 and 23, the discharge electrode 22 may be formed of a needle rod.

Referring to Figure 2, the operation of the embodiment of the multi-cyclone dust collector according to the present invention described above is as follows.

When the multi-cyclone dust collector is operated, contaminated air is sucked into the primary cyclone 30 through the first inlet 32. The sucked contaminated air is lowered while turning to the lower part of the boundary member 70 and then rises again. At this time, the relatively large dust separated from the primary cyclone 30 is collected at the bottom of the body of the primary cyclone 30, and partial contaminated air containing fine dust not passed through the filter 60. To the secondary cyclone (50). In the lower portion of the primary cyclone 30, the rotation of the flow is prevented by the separating member 10, thereby preventing re-spreading of the collected dust. Nevertheless, the dust re-spread is prevented from rising by the boundary member 70 and the re-scattering prevention member 40.

On the other hand, the partially contaminated air introduced into the second inlet 500 via the filter 60 is lowered while turning inside the body of the secondary cyclone 50. At this time, the fine dust is discharged to the outside of the secondary cyclone 50 through the lower slit 56. At this time, the dust collecting performance is improved by the rotational flow preventing member 20 and the positive electrode 22. The air from which the fine dust is separated rises again and is discharged to the outside of the cleaner via the discharge member 80.

The cyclone dust collector according to the present invention described above can be installed and used in the main body or extension tube of the canister type vacuum cleaner, and, of course, can be installed and used in an upright cleaner.

As described above, the present invention has the following effects.

First, according to the present invention, it is possible to improve dust collection efficiency and suction work rate.

Second, according to the present invention, it is possible to prevent the re-splash of the collected dust can improve the dust collection efficiency

Claims (52)

A primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking the air discharged from the primary cyclone, The secondary inlet may include an outer guide extending outward of the body of the secondary cyclone and at least one opening formed along the body at the rear end of the outer guide and having a predetermined length. Clone dust collector. The cyclone dust collector of claim 1, wherein the cyclone dust collector further comprises an inner guide extending from the end of the opening to the inside of the body. The cyclone dust collector of claim 2, wherein the outer guide extends in a tangential direction, and the inner guide is parallel to the outer guide. The cyclone dust collector of claim 3, wherein at least one of the outer guide and the inner guide is formed to be corrugated. The cyclone dust collector according to any one of claims 1 to 4, wherein the openings are arranged at equal intervals. The cyclone dust collector of claim 5, wherein the openings are arranged symmetrically with each other. The cyclone dust collector of claim 6, wherein the opening is two. The cyclone dust collector according to any one of claims 1 to 4, wherein at least one of the outer guide and the inner guide is connected to an outer wall of the body. The cyclone dust collector of any one of claims 1 to 4, wherein an auxiliary guide is formed below the outer guide. The cyclone dust collector of claim 9, wherein a lower portion of the auxiliary guide is connected to an outer wall of the body. The method according to any one of claims 1 to 4, wherein at least one of the outer guide and the inner guide has a predetermined curvature based on at least one direction of the axial direction and the direction perpendicular to the secondary cyclone. Cyclone dust collector, characterized in that having. The cyclone dust collector of claim 11, wherein the curvatures of the outer guide and the inner guide are substantially the same. The cyclone dust collector according to any one of claims 1 to 4, wherein the body of the secondary cyclone is formed by at least one combination of a cylindrical portion and a conical portion. The cyclone dust collector of claim 13, wherein the body of the secondary cyclone includes a cylindrical portion and a conical portion extending downward from the cylindrical portion. 15. The cyclone dust collector of claim 14, wherein the cylindrical portion is relatively longer than the conical portion. The cyclone dust collector of any one of claims 1 to 4, wherein a slit is formed at a lower portion of the body of the secondary cyclone. 17. The cyclone dust collector of claim 16, wherein the slit is formed along an axial direction. 18. The cyclone dust collector of claim 17, wherein the slit is formed to be inclined at a predetermined angle in the direction of the central axis of the secondary cyclone. 18. The cyclone dust collector of claim 17, wherein the slit becomes narrower toward the central axis of the secondary cyclone. The cyclone dust collector of claim 19, wherein a lower portion of the body of the secondary cyclone is blocked and an opening is formed in an upper side of the lower portion of the body. The cyclone dust collector of claim 20, wherein an area of the opening is relatively larger than an area of the slit. The cyclone dust collector according to any one of claims 1 to 4, wherein a boundary member is provided between the primary cyclone and the secondary cyclone. 21. The cyclone dust collector of claim 20, wherein the boundary member extends from the outside of the secondary cyclone to the inside of the primary cyclone. 24. The cyclone dust collector of claim 23, wherein one side of the boundary member is in contact with the outside of the secondary cyclone, and the other side is spaced apart from the inside of the primary cyclone by a predetermined distance. The cyclone dust collector of claim 24, wherein the boundary member is a downwardly inclined cone. 26. The cyclone dust collector of claim 25, wherein the distal end of the boundary member faces in a vertical direction. 26. The cyclone dust collector of claim 25, wherein the boundary member is made of an elastic material and is bent downwardly and not upwardly. The cyclone dust collector of claim 27, wherein a tip of the boundary member is in contact with an inner wall of the primary cyclone (30). The cyclone dust collector according to any one of claims 25 to 28, wherein the boundary member is formed with an opening having a predetermined shape. 25. The cyclone dust collector of claim 24, wherein an auxiliary member is formed at an end of the boundary member and is formed of an elastic material and is bent downward and not bent upward. 31. The cyclone dust collector of claim 30, wherein the tip of the auxiliary member is in contact with the inside of the secondary cyclone. The cyclone dust collector of claim 22, wherein the boundary member is helical. The anti-scattering member according to any one of claims 1 to 4, wherein a re-scattering prevention member is installed inside the primary cyclone to prevent the dust collected in the lower portion of the primary cyclone from scattering again. Cyclone dust collector. 34. The cyclone dust collector of claim 33, wherein the re-scattering prevention member is a ring-shaped member and is inclined downward. The cyclone dust collector according to any one of claims 1 to 4, wherein a filter for filtering foreign substances is provided outside the secondary cyclone. 36. The cyclone dust collector of claim 35, wherein the filter is conical. 38. The cyclone dust collector of claim 36, wherein the cone is inclined upward. The cyclone dust collector of claim 35, wherein a predetermined position of the filter is blocked. The cyclone dust collector according to any one of claims 1 to 4, wherein a rotational flow preventing member is provided on a discharge passage through which air is discharged to the outside from the secondary cyclone. 40. The cyclone dust collector of claim 39, wherein the anti-rotation member is cross-shaped. 41. The cyclone dust collector of claim 39 or 40, wherein the rotational flow preventing member has a potential difference from an adjacent member. 40. The cyclone dust collector of claim 39, wherein the anti-rotation member is provided with a discharge electrode. The cyclone dust collector according to any one of claims 1 to 4, wherein a rotational flow preventing member is provided between the lower portion of the primary cyclone and the lower portion of the secondary cyclone. 44. The cyclone dust collector of claim 43, wherein the rotational flow preventing member is cross-shaped. delete A primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking the air discharged from the primary cyclone, The secondary cyclone includes a cylindrical portion and a conical portion extending from the cylindrical portion, wherein the cone is a cyclone cleaner, characterized in that the slit is formed. The cyclone cleaner of claim 46, wherein a lower portion of the secondary cyclone is blocked and an opening is formed in an upper side of the lower cyclone. A primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking the air discharged from the primary cyclone, The secondary inlet has an outer guide that extends to the outside of the body of the secondary cyclone, The cyclone cleaner, characterized in that the re-splashing member is installed between the secondary cyclone and the primary cyclone. A primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking the air discharged from the primary cyclone, Cyclone cleaner, characterized in that the filter is installed on the outside of the secondary cyclone. The cyclone cleaner of claim 49, wherein the filter is formed with a blockage. A primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking the air discharged from the primary cyclone, The cyclone cleaner, characterized in that the discharge member is installed in the upper center of the secondary cyclone, the rotational flow prevention member is installed in the lower portion of the discharge member. A primary cyclone having a primary inlet for sucking contaminated air; Is installed inside the primary cyclone, and comprises a secondary cyclone having a secondary inlet for sucking the air discharged from the primary cyclone, The lower portion of the secondary cyclone is blocked, the cyclone cleaner, characterized in that the opening is formed on the upper side.

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