KR20090131470A - Dust separating apparatus of vacuunm cleaner - Google Patents

Abstract

PURPOSE: A dust extraction device for a vacuum cleaner is provided to evenly store foreign materials inside the dust collecting vessel by bypassing air flow inside a dust collecting vessel and stabilizing the flow of the dust collecting vessel. CONSTITUTION: A dust extraction device for a vacuum cleaner comprises a cyclone part(110), an air suction part(111), and a discharge part(112). The cyclone part generates cyclone flow. The horizontal length passing through the center of the cyclone part is longer than the vertical length. The cross section of the cyclone part is formed in an ellipse shape. A filter element(113) is included inside the cyclone part. The filter element has the same center as the center of the cyclone part. The air suction part is formed at one side of the cyclone part. The air suction part absorbs the air to the cyclone part. The dust discharge part discharges the dust separated from the air sucked by the air suction part.

Description

Dust separating apparatus of vacuum cleaner {Dust separating apparatus of vacuunm cleaner}

This embodiment relates to a dust separation apparatus of a vacuum cleaner.

The present embodiment relates to a dust separation apparatus of a vacuum cleaner, and in detail, to improve the structure of the cyclone portion of the vacuum cleaner to improve the dust separation performance, the dust separation apparatus of the vacuum cleaner to stabilize the flow in the dust collecting container It is about.

In general, a vacuum cleaner is a device that sucks air containing dust by using a vacuum pressure generated by a suction motor mounted inside the body, and then filters the dust inside the body.

Such a vacuum cleaner should flow smoothly until the air sucked from the suction nozzle is sucked into the cleaner body, and the dust should be easily separated from the air including the dust. This is an important criterion for determining the performance of the vacuum cleaner.

On the other hand, in order to separate the dust from the sucked air, various dust separation methods have been applied to the vacuum cleaner.

For example, a paper filter may be provided inside the cleaner body. In the air flowing into the paper filter, the dust is filtered and remains inside the filter, and the air is exhausted through the paper filter.

The dust separation method of the paper filter method as described above is not hygienic, the user had to clean the paper filter frequently.

On the other hand, the cleaner body may be provided with a dust separation unit to cause the cyclone flow. The dust separation unit may be provided with a cylindrical cyclone portion to allow cyclone flow to occur.

In the cyclone portion, centrifugal force is applied to the sucked air to generate cyclone flow. In addition, during the cyclone flow, the dust contained in the flowing air may be separated and discharged to the dust collector.

On the other hand, according to the conventional cyclone system, when a large amount of foreign matter is accumulated in the dust collecting container, there is a problem that the foreign matter is re-introduced into the cyclone unit from the dust collecting container.

In addition, when the foreign matter separated from the cyclone portion is discharged to the dust collecting container through the dust discharge portion, there was a problem that dust is accumulated only near the dust discharge portion.

The present embodiment aims to propose a dust separation apparatus of a vacuum cleaner that allows a separate flow to be generated inside the dust collecting container to prevent foreign matter from being re-introduced from the dust collecting container into the cyclone portion.

In addition, an object of the present invention is to propose a dust separation apparatus of a vacuum cleaner that stabilizes the flow in the dust collecting container so that foreign matter can be evenly stored in the dust collecting container.

In the dust separation apparatus of the vacuum cleaner according to the present embodiment, a cyclone unit in which a cyclone flow is generated; and an air suction unit provided at one side of the cyclone unit and allowing air to be sucked into the cyclone unit; A dust discharge unit configured to discharge dust separated from the air sucked from the air suction unit; And a dust collecting container in which dust discharged from the dust discharge part is stored, and the air suction part has a bypass part for allowing air to be bypassed from the dust collecting container to the cyclone part.

According to the embodiment of the above configuration, by forming a guide slit for the air flow inside the dust collection container by-pass to the cyclone portion, the dust stored in the dust collection container is introduced back to the cyclone portion It can be prevented and can stabilize the flow inside the dust collecting container.

In addition, as the flow in the dust collecting container is stabilized, there is an advantage that the foreign matter can be evenly accumulated in the dust collecting container.

Hereinafter, with reference to the drawings will be described a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments within the scope of the same idea.

1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention, Figure 2 is a perspective view of a dust separation apparatus according to a second embodiment of the present invention, Figure 3 is a cut along the line II 'of FIG. One cross section.

1 to 3, the vacuum cleaner 1 according to the first embodiment of the present invention includes a main body 10 forming an appearance and a suction motor provided to the main body 10 to generate a suction force. 20, a pre-filter 30 provided on one side of the suction motor 20 and allowing air to be filtered before entering the suction motor 20, and provided on both sides of the main body 10 and the main body. A moving wheel 40 is included to allow the 10 to be easily moved.

In addition, the vacuum cleaner 1 includes a dust separation device 100 provided at one side of the prefilter 30 to separate dust from air introduced into the cleaner. The dust separation apparatus 100 may be detachably coupled to the main body 10.

The dust separation device 10, the cyclone portion 110 to the cyclone flow to the air containing the dust, and the dust provided from the lower side of the cyclone portion 110 and separated from the air to be stored Dust collecting container 130 is included.

On the other hand, although not shown in the drawing, the vacuum cleaner 1 includes a suction nozzle for allowing air to be sucked from the surface to be cleaned, and an extension pipe and a connection for moving the air sucked from the suction nozzle toward the dust separation apparatus 100. Hose is included. Detailed description thereof will be omitted.

In detail, the dust separation apparatus 100 includes a cyclone unit 110 for separating dust in the air according to a cyclone principle, and is provided below the cyclone unit 110 and the cyclone unit 110. The dust collecting container 130 to store the dust separated from the, and the shielding portion 140 is provided on the upper side of the dust collecting container 130 to shield the opened upper side of the dust collecting container 130.

The dust collecting container 130 includes a dust collecting body 131 which forms a dust storage unit 133 and a bottom thereof is opened, and a lower surface of the dust collecting body 131 is selectively provided at a lower side of the dust collecting body 131. A dust cover 132 is included to open. Here, the dust cover 132 may be opened downward.

One side of the cyclone part 110 is provided with an air intake 111 to allow air to be sucked into the cyclone part 110. The air intake 111 may be formed in a tangential direction of the cyclone part 110 in order to generate a cyclone flow inside the cyclone part 110.

In addition, the air suction unit 111 is disposed in the dust collecting container 130. That is, the air suction part 111 extends downward from the cyclone part 110 and is connected to the dust collecting cover 132.

Therefore, at least a portion of the dust collecting cover 132, an opening for allowing the air to move to the air intake 111 will be formed. The air sucked through the suction nozzle of the cleaner may be moved to the air suction unit 111 through an extension pipe and a connection hose.

On the other hand, on the other side of the cyclone unit 110, a dust discharge unit 112 for discharging the dust in the air sucked through the air suction unit 111 is provided.

Here, the dust discharge unit 112 may be formed in the tangential direction of the cyclone unit 110 to facilitate the discharge of dust. In addition, the dust discharge unit 112 extends downward to allow the dust separated in the air to be discharged to the dust collecting container 130, and is disposed in the dust collecting container 130.

That is, the dust discharge unit 112 is formed to protrude downward from the cyclone unit 110, the separated dust is guided by the dust discharge unit 112 to be easily discharged to the dust collecting container 130. Can be.

In addition, a filter member 113 is provided inside the cyclone part 110 to separate dust from sucked air. The filter member 113 is detachably coupled to one side of the cyclone part 110 and extends in a horizontal direction with a bottom surface of the cyclone part 110 toward the inside of the cyclone part 110. . In addition, the filter member 113 may be formed in a conical shape whose end is cut.

In addition, the filter member 113 may be coupled to a central portion of the cyclone unit 110. That is, the filter member 113 may be disposed such that the center thereof is concentric with the center of the cyclone unit 110.

In the filter member 113, a through hole 113a through which air from which dust is separated is formed. Dust may be filtered in the through hole 113a.

At one end of the filter member 113, an air discharge unit 115 through which dust separated air is discharged is formed. Of course, the air discharge unit 115 may be formed to be open to allow the air to be discharged. In addition, the air discharged through the air discharge unit 115 may move to the suction motor 20 side of the cleaner.

The cyclone unit 110, the air suction unit 111, the discharge unit 115, and the dust discharge unit 112 described above may be referred to as a "dust separation unit".

On the other hand, inside the cyclone portion 110, a guide-bar 114 for guiding the cyclone flow is provided. Here, the guide bar 114 may be disposed on the other side of the cyclone unit 110 to which the filter member 113 is coupled.

The guide bar 114 is provided in a cylindrical shape and is disposed at a position having the same center as the filter member 113. That is, the center line of the guide bar 114 may be at the same line position as the center line C1 of the filter member 113. In this case, the cyclone flow can easily maintain the cyclone shape.

The cross section in the vertical direction with respect to the center line of the guide bar 114 has a shape corresponding to the left end of the filter member 113. That is, the size and shape of the right end of the guide bar 114 corresponds to the size and shape of the left end of the filter member 113.

In addition, the guide bar 114 is disposed spaced a predetermined distance from one side of the filter member 113, the lower side of the guide bar 114, dust discharge portion 112 for discharging dust separated from the air is provided Is provided.

That is, the guide bar 114 may be located closer to the dust discharge unit 112 than to the air intake unit 111. In addition, the separated dust in the air may be moved while maintaining the cyclone flow to the outside of the guide bar 114, it may be discharged through the dust discharge unit 112.

As a result, the air inside the cyclone part 110 may be easily cyclone flow by the guide bar 114. That is, the air flow may be guided by the guide bar 114 to complete the cyclone shape that is moved along the inner circumferential surface of the cyclone part 110.

In addition, the filter member 113 extends from one side of the cyclone part 110 in the direction of the guide bar 114. In addition, the filter member 113 is provided in a conical shape in which the cross-sectional area becomes smaller toward the guide bar 114, and a plurality of through holes 23a are formed on the outer circumferential surface of the filter member 113 to allow air to pass therethrough. .

Since air tends to flow along the inner circumferential surface of the cyclone part 110, the air flow velocity at the center line C1 of the cyclone part 110 is nearly zero.

In this case, the center line C1 section of the filter member 23 has a higher pressure than the surroundings. In addition, due to the pressure difference, a force is applied to the cyclone part 110 to move the dust in the outward direction of the filter member 113.

Therefore, dust is prevented from entering the inside of the filter member 113, and can be easily separated from the air and introduced into the dust collecting container 130. As a result, there is an advantage that the dust separation performance can be improved by the shape of the guide bar 114 and the filter member 113.

4 is a cross-sectional view illustrating the shape of a cyclone unit according to a first exemplary embodiment of the present invention.

Referring to FIG. 4, the cyclone unit 110 according to the first exemplary embodiment of the present invention may have an elliptical cross section.

The distance from the center C of the cyclone part 110 to the point P1 on the circumference of the cyclone part 110, that is, the horizontal radius of the cyclone part 110 corresponds to “a”. Similarly, the distance from the center C of the cyclone part 110 to the point P3 on the circumference of the cyclone part 110 also corresponds to "a".

The distance from the center c of the cyclone part 110 to the point P2 on the circumference of the cyclone part 110, that is, the longitudinal radius of the cyclone part 110 corresponds to “b”. do. Here, "a" is formed larger than "b".

The radius of the cyclone portion 110 is formed to increase gradually from the position P2 to the position P1 in the clockwise direction.

In this case, the angular velocity of the air flow at the position corresponding to the horizontal length a of the cyclone portion 110 is the air flow at the position corresponding to the longitudinal length b of the cyclone portion 110. Is greater than the angular velocity of.

Therefore, the cyclone shape can be easily maintained while the air flowing into the cyclone portion 110 flows clockwise from P1 to P2.

Similarly, the cyclone flows clockwise from P2 towards P3, resulting in a smaller angular velocity. This change in angular velocity is due to the change in distance from the center of the cyclone portion to the outer circumferential surface.

On the other hand, at one end of the air intake 111, an intake end 111a where the air intake 111 and the cyclone portion 110 meet is formed. In addition, at one end of the dust discharge unit 112, a discharge end 112a is formed at which the dust discharge unit 112 and the cyclone unit 110 meet.

The position where the virtual line from the center C of the cyclone part 110 reaches the position P1 and the filter member 113 is referred to as H1, and the virtual line reaching the position P3 from the center C and the filter member. The location where 113 meets is called H3. The position where the imaginary line reaching the position P2 from the center C and the filter member 113 is referred to as H2.

Here, since the radius of the filter member 113 is constant, the distance from P1 to H1 and the distance from P3 to H3 are larger than the distance from P3 to H3.

When the cyclone part 110 is formed in an elliptical shape, the distance from P1 to H1, that is, the distance between the cyclone part 110 and the filter member 113 is kept wide. That is, the distance may be kept larger than when the cyclone part 110 is formed in a circular shape.

The distance from P1 to H1 is greater than or equal to the width L1 of the air intake 111. That is, the horizontal width of the air intake 111 is characterized in that formed less than or equal to the distance between the filter member 113 and the cyclone portion 110 to which the sucked air moves.

The air intake 111 extends tangentially downward from the cyclone portion 110. In addition, it may be seen that P1 represents a contact point on the cyclone part 110 in contact with the air intake part 111.

In other words, the horizontal width of the air suction unit 111 is characterized in that formed less than or equal to the distance between the filter member 113 and the cyclone unit 110 to which the sucked air is moved.

In this case, the air sucked through the air suction unit 111 may be easily flowed without hitting the filter member 113. That is, since air can flow along the inner circumferential surface of the cyclone unit 110 without being disturbed by the filter member 113, a strong cyclone flow can be maintained.

In addition, since the distance from the filter member 113 to the suction end 111a is largely secured, it is possible to prevent the cyclone flow from breaking at the suction end 111a. That is, when the distance from the filter member 113 to the suction end 111a is small, a phenomenon in which an air flow bounces off the suction end 111a may occur, which can be prevented.

Of course, when the distance from the filter member 113 to the suction end 111a is largely secured, it may be minimized that the air flow is disturbed by the filter member 113.

Similarly, when the cyclone portion 110 is formed in an elliptical shape, the distance from the P3 to H3, that is, the distance between the cyclone portion 110 and the filter member 113 is kept wide. That is, the distance may be kept larger than when the cyclone part 110 is formed in a circular shape.

The distance from P3 to H3 is greater than or equal to the width L2 of the dust discharge part 112. That is, the horizontal width L1 of the dust discharge part 112 is smaller than or equal to the distance from the filter member 113 to the other side of the cyclone part 110.

Here, the other side of the cyclone unit 110 means a position where the dust discharge unit 112 starts to extend from the cyclone unit 110. That is, the dust discharge part 112 extends downward from the cyclone part 110 in a tangential direction, which may be regarded as a point starting to extend, that is, a contact point P3.

In other words, the horizontal width of the dust discharge part 112 is characterized in that it is formed to be less than or equal to the distance between the filter member 113 and the cyclone unit 110 to which the dust to be discharged is moved.

In this case, the dust discharged through the dust discharge unit 112 may be easily discharged without hitting the filter member 113. That is, the separated dust may be easily flowed and discharged along the inner circumferential surface of the cyclone unit 110 without being disturbed by the filter member 113.

In addition, since the distance from the filter member 113 to the discharge end 112a is largely secured, it is possible to prevent the cyclone flow from breaking at the discharge end 112a. That is, when the distance from the filter member 113 to the discharge end 112a is small, air flow may bounce off the discharge end 111a, which may be prevented.

Of course, when the distance from the filter member 113 to the suction end 111a is largely secured, the discharge of the separated dust may be minimized by the filter member 113.

5 and 6 are cross-sectional views showing the configuration of a cyclone unit according to a first embodiment of the present invention.

5 and 6, below the cyclone unit 110 according to the first embodiment of the present invention, a dust collecting container 130 in which dust separated during cyclone flow is stored is provided. In addition, a shielding part 140 is provided on the cyclone part 110 to shield the upper side of the dust collecting container 130.

The shielding part 140 includes a blocking film 142 that blocks an upper surface of the dust collecting container 130. The blocking film 142 shields a space between the cyclone part 110 and the shielding part 140.

By the blocking layer 142, the dust stored in the dust collecting container 130 may be prevented from scattering toward the upper side of the cyclone part 110. As a result, the stored dust is not discharged to the outside of the dust separation apparatus 100 has a hygienic advantage.

The shielding part 140 and the blocking film 142 may be formed integrally with the cyclone part 110 or may be formed of a member separate from the cyclone part 110.

The cyclone unit 110 is provided in a form lying in the horizontal direction.

On the other hand, the air intake 111 to allow the air flow to the cyclone portion 110 is provided on one side with respect to the longitudinal center axis (S1) of the cyclone portion (110). On the other hand, the dust discharge portion 112 for discharging the separated dust in the air to the dust collecting container 130 is provided on the other side with respect to the longitudinal center axis (S1).

That is, the dust discharge part 112 can be seen to be located on the opposite side of the air suction part 111.

In addition, a bypass slit 116 is formed on the outer circumferential surface of the cyclone part 110 to allow the flow in the dust collecting container 130 to be bypassed to the cyclone part 110. The bypass slit 116 penetrates in the longitudinal direction of the cyclone part 110 so that the cyclone part 110 and the dust collecting container 130 communicate with each other.

In other words, the bypass slit 116 may be formed at a portion of the outer circumferential surface of the cyclone unit 110 that contacts one side of the dust collecting container 130, that is, a portion that allows communication with the dust collecting container 130. have.

Therefore, when the dust collecting container 130 is provided below the cyclone part 110 as shown in the drawing, the bypass slit 116 will be formed under the cyclone part 110.

On the other hand, the dust collecting container 130 may be provided on the left side or the right side of the cyclone unit 110. In this case, the bypass slit 116 may be formed at the left side or the right side of the cyclone part 110.

In addition, a plurality of bypass slits 116 may be formed.

On the other hand, the bypass slit 116 is formed on one side with respect to the longitudinal center axis (S1). That is, the air intake 111 and the bypass slit 116 are located in the same direction with respect to the longitudinal center axis S1. In addition, the bypass slit 116 may be arranged side by side adjacent to the air intake 111.

That is, the bypass slit 116 and the air intake 111 is formed on the outer circumferential surface of the cyclone portion 110 facing the dust discharge portion 112.

In addition, the bypass slit 116 is formed at a position lower than the center C of the cyclone part 110.

In summary, as shown in FIG. 6, the air intake 111 and the bypass slit 116 are located on three quadrants with respect to the cross section of the cyclone portion 110. That is, the air intake 111 and the bypass slit 116 may be located on the same quadrant.

On the other hand, the bypass slit 116 is formed so that the bypass flow (f2) is moved upward from the dust storage portion 133 toward the cyclone portion 110.

In detail, the main flow f1 moving upward is formed in the cyclone part 110 at the position where the bypass slit 116 is formed. The bypass flow f2 corresponds to the moving direction of the main flow f1 and moves upwards so as not to disturb the main flow f1.

Here, the angle α formed by the bypass flow f2 and the main flow f1 may be formed at an acute angle of 90 degrees or less. The angle α means an angle formed at each position immediately before the main flow f1 and the bypass flow f2 are combined.

In the state where the angle is formed, the bypass flow f2 may move along the inner circumferential surface of the cyclone part 110 together with the main flow f1. This is because the size of the bypass flow f2 is smaller than the size of the main flow f1.

As a result, the bypass flow f2 may join the main flow f1 without disturbing the main flow f1.

On the other hand, by the bypass flow (f2), the flow in the dust collecting container 130 can be stabilized.

In detail, when the dust separated in the air is discharged to the dust collecting container 130 through the dust discharge unit 112, most of the dust flows near the dust discharge unit 112, the dust discharge unit ( 26 tends to accumulate on one side (near).

When the dust is accumulated to some extent, the dust of the dust storage unit 133 may be reflowed into the cyclone unit 110.

However, when the bypass flow f2 is generated by the bypass slit 116, the flow in the dust storage unit 133 may be stabilized by the flow toward the bypass slit 116.

In addition, the dust stored in the dust storage unit 133 may be moved in the other direction of the dust discharge unit 26 along the bypassed air flow.

That is, the dust can be spread evenly stored inside the dust collecting container 130.

On the other hand, the dust discharge portion 112 extends inclined downward from the outer peripheral surface of the cyclone portion 110. In addition, the dust discharge part 112 extends in a direction closer to the side wall of the dust collecting container 130.

As the dust discharge unit 112 is inclined, the discharged dust may be stored in a state spaced apart from the sidewall of the dust collecting container 130 by a predetermined distance. That is, the problem that the dust is accumulated close to the side wall of the dust collecting container 130 is prevented, it can be stored evenly spread in the dust storage unit 133.

7 and 8 are cross-sectional views showing air flow in the cyclone unit according to the first embodiment of the present invention.

7 and 8, air containing dust is sucked through the air inlet 111 to form a main flow f1, and at least a part of the main flow f1 is the dust storage unit 133. Bypass to the inside of the cyclone unit 110.

In detail, the air sucked into the cyclone unit 110 through the air suction unit 111 performs a cyclone flow along the inner circumferential surface of the cyclone unit 110. The cyclone flow is moved from the air intake portion 111 side to the dust discharge portion 112 side.

In addition, the dust (dotted line) separated in the cyclone flow is discharged to the dust collecting container 130 by gravity. At this time, the dust may be discharged through the dust discharge unit 112.

As the dust separated from the cyclone part 110 is discharged in the tangential direction of the cyclone part 110, that is, the dust is discharged in the same direction as the direction in which the dust is rotated, the dust having a relatively high density is easy. In addition to being easily discharged, dust having a relatively low density can also be easily discharged from the cyclone unit 110.

In addition, since the dust having a low density is easily discharged, the dust having a low density is not accumulated in the filter member 113, so that the air can be smoothly flowed, thereby further improving the dust separation performance. Can be.

At least a part of the main flow f1 is moved to the dust storage unit 133 together with the dust discharged to form a bypass flow f2. And, the bypass flow f2 is moved toward the bypass slit 116. In this process, the dust dropped near the dust discharge unit 112 is spread evenly inside the dust storage unit 133 is stored.

Therefore, even when dust is accumulated in the dust storage unit 133 or more by a predetermined volume, the phenomenon that the stored dust is re-introduced into the cyclone unit 110 through the dust discharge unit 112 is prevented.

Thereafter, the bypass flow f2 is moved into the cyclone part 110 through the bypass slit 116 and joins the main flow f1 to form a cyclone flow.

As described above, since the bypass flow (f2) is introduced in a direction that does not interfere with the main flow (f1), the overall air flow is smooth, there is an advantage that the dust separation performance can be improved.

The following describes the second and third embodiments of the present invention. Since the present embodiment differs only in the air intake portion of the cyclone portion compared with the first embodiment, the difference is mainly described and the same reference numerals and reference numerals are used for the same portions.

9 is a cross-sectional view showing the configuration of a cyclone portion according to a second embodiment of the present invention, Figure 10 is a cross-sectional view showing the air flow in the cyclone portion according to a second embodiment of the present invention.

9 and 10, the cyclone unit 110 according to the second embodiment of the present invention includes an air intake unit 111 for allowing air to be sucked into the cyclone unit 110, and the cyclone. The dust discharge unit 112 for discharging the separated dust during the cyclone flow in the unit 110 is included.

The air suction part 111 and the dust discharge part 112 are disposed inside the dust collecting container 130 and extend downward from the lower side of the cyclone part 110. The air inlet 111 and the dust outlet 112 extend in the tangential direction of the cyclone unit 110.

Air containing dust is introduced to one side of the cyclone unit 110 through the air inlet 111, the dust separated during the cyclone flow is the other side of the cyclone unit 110, that is, the air inlet It can be discharged to the opposite side of 111 (dotted line).

The air inlet 111 is provided with a bypass part 216 to allow the internal flow of the dust collecting container 130 to be bypassed into the cyclone part 110. The bypass unit 216 may be formed in a slit form through which flow can pass.

In addition, a plurality of bypass parts 216 may be formed in the vertical direction. The plurality of bypass units 216 may be disposed in a state spaced apart from each other by a predetermined distance.

The principle through which the flow is bypassed through the bypass unit 216 will be described.

In the air suction unit 111, a rapid flow is formed by the suction force of the suction motor. In addition, air containing dust is rapidly sucked into the cyclone unit 110 through the air suction unit 111. Thus, a low pressure environment is created in the air intake 111.

On the other hand, only a relatively small flow is formed in the dust collecting container 130 together with the dust discharged. In addition, the flow inside the dust collecting container 130 is moved at a low speed. Therefore, the internal pressure of the dust collecting container 130 is relatively high pressure environment compared to the interior of the air intake 111.

As a result, due to the pressure difference between the inside of the air suction unit 111 and the inside of the dust collecting container 130, the flow inside the dust collecting container 130 has a tendency to move toward the bypass unit 216. Accordingly, a bypass flow that is moved toward the bypass part 216 from the dust discharge part 112 side is formed in the dust collecting container 130.

In addition, the dust separated from the cyclone unit 110 may be easily discharged into the dust collecting container 130 by the bypass flow. That is, there is an advantage that the dust separation performance is improved.

In addition, the dust discharged through the dust discharge unit 112 has an effect that can be evenly spread and stored in the interior of the dust collecting container 130 by the bypass flow.

On the other hand, although not shown in the figure, the bypass unit 216 may be provided with a filter member in order to filter the fine dust in the process of the bypass flow flowing into the cyclone unit 110. Of course, in order for the fine dust to be filtered by the bypass unit 216 itself, the slit size of the bypass unit 216 may be formed to be very small.

Referring to Fig. 10, the air flow according to the second embodiment of the present invention will be described.

When air containing dust is sucked into the cyclone unit 110 through the air suction unit 111, a cyclone flow f is generated. The cyclone flow f can be seen as the main flow f1 for dust separation.

The dust separated from the air during the cyclone flow is introduced into the dust collecting container 130 through the dust discharge part 112. In this process, at least a part of the main flow f1 is introduced into the dust collecting container 130 together with the dust discharged.

The flow inside the dust collecting container 130 is moved to the bypass unit 216 by a pressure difference between the air intake unit 111 and the dust collecting container 130, and then passes through the bypass unit 216. As it is introduced into the cyclone unit 110.

That is, some of the main flow f1 passes through the dust collecting container 130 as a bypass flow, and then merges with the main flow f1 again through the bypass unit 216.

Hereinafter, the third embodiment and the fourth embodiment of the present invention will be described. Compared with the second embodiment, the present embodiment differs only in the shape of the bypass portion, and therefore, the difference will be mainly described. The same description and reference numerals are used for the other same parts.

11 is a cross-sectional view showing the configuration of a cyclone portion according to a third embodiment of the present invention, Figure 12 is a cross-sectional view showing the configuration of a cyclone portion according to a fourth embodiment of the present invention.

Referring to FIG. 11, the cyclone unit 110 according to the third exemplary embodiment of the present invention is provided with an air intake unit 111 in which a bypass unit 316 is formed. The bypass unit 316 may be provided in a slit form so that an air flow in the dust storage unit 133 may flow into the air intake unit 111.

The bypass part 316 is formed to be inclined in a predetermined direction with respect to the bottom surface of the dust collecting container 130. In addition, a plurality of bypass parts 316 may be formed, and the plurality of bypass parts 316 may be arranged in a state spaced apart from each other.

On the other hand, the bypass unit 316 may be provided with a filter member to prevent fine dust from flowing into the cyclone unit 110 during the bypassed flow.

At least a part of the main flow in the cyclone part 110 is bypassed and moved to the dust collecting container 130, after which the cyclone part 110 is introduced into the cyclone part 110. In addition, the bypass flow introduced into the cyclone unit 110 merges with the main flow to form a cyclone flow.

Referring to FIG. 12, the cyclone unit 110 according to the fourth embodiment of the present invention is provided with an air intake unit 111 in which a bypass unit 416 is formed. The bypass unit 416 may be provided in the form of a hole so that the air flow in the dust storage unit 133 may flow into the air intake unit 111.

A plurality of bypass parts 416 may be formed, and the plurality of bypass parts 416 may be arranged in a state spaced apart from each other. In addition, the size of the bypass unit 416 allows air flow to pass, and the dust may be formed to a size that can be filtered.

On the other hand, the bypass unit 416 may be provided with a filter member to prevent the fine dust from flowing into the cyclone unit 110 during the bypassed flow.

At least a part of the main flow in the cyclone unit 110 is bypassed and moved to the dust collecting container 130, and thereafter, the cyclone unit 110 is introduced into the cyclone unit 110 through the bypass unit 416. In addition, the bypass flow introduced into the cyclone unit 110 merges with the main flow to form a cyclone flow.

By the above configuration, the flow in the dust collecting container 130 can be stabilized. In addition, dust may be evenly spread and stored in the dust collecting container 130 by the bypass flow.

1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention.

2 is a perspective view of a dust separation device according to a first embodiment of the present invention.

3 is a cross-sectional view taken along the line II ′ of FIG. 2.

Figure 4 is a cross-sectional view showing the shape of the cyclone portion according to the first embodiment of the present invention.

5 and 6 are cross-sectional views showing the configuration of a cyclone unit according to a first embodiment of the present invention.

7 and 8 are cross-sectional views showing the air flow in the cyclone portion according to the first embodiment of the present invention.

9 is a cross-sectional view showing the configuration of a cyclone unit according to a second embodiment of the present invention.

10 is a cross-sectional view showing air flow in a cyclone unit according to a second embodiment of the present invention.

11 is a cross-sectional view showing the configuration of a cyclone unit according to a third embodiment of the present invention.

12 is a cross-sectional view showing a configuration of a cyclone unit according to a fourth embodiment of the present invention.

Claims (9)

A cyclone portion in which cyclone flow is generated; An air suction part provided at one side of the cyclone part and allowing air to be sucked into the cyclone part; A dust discharge unit for discharging the separated dust in the air sucked from the air suction unit is included, The cross section of the cyclone portion, The length of the horizontal direction passing through the center of the cyclone portion is longer than the length of the longitudinal direction dust separation apparatus of the vacuum cleaner. The method of claim 1, Cross section of the cyclone portion is a dust separation apparatus of the vacuum cleaner, characterized in that formed in an oval. The method of claim 1, Inside the cyclone portion, And a filter member provided to have the same center as the center of the cyclone part and to filter dust from sucked air. The method of claim 1, The horizontal width of the air intake portion, Dust collecting device of the vacuum cleaner, characterized in that the suctioned air is formed to be less than or equal to the distance between the filter member and the cyclone portion to be moved. The method of claim 1, The air suction unit is a dust separation apparatus of the vacuum cleaner is formed to extend in a tangential direction from one side of the cyclone portion. The method of claim 1, The width of the dust discharge portion, The dust separation apparatus of the vacuum cleaner, wherein the dust to be discharged is formed to be smaller than or equal to the distance between the filter member and the cyclone portion. The method of claim 1, The dust discharge unit is a dust separation apparatus of the vacuum cleaner is formed to extend in a tangential direction from one side of the cyclone portion. The method of claim 1, The air suction unit is formed on one side of the cyclone portion, the dust discharge unit dust separation apparatus, characterized in that formed on the opposite side of the air suction unit. The method of claim 1, The dust suction device of the vacuum cleaner, characterized in that the angular velocity is changed during the cyclone flow of the air sucked through the air suction.

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