Cleaner

Abstract

The present invention relates to a cleaner comprising: a suction part for guiding air into a dust container; a first cyclone part for separating dust from the air having been suctioned through the suction part; a filter part for filtering dust from the air having been discharged from the first cyclone part; a second cyclone part for separating dust from the air having been discharged from the filter part; and a guide part for guiding the air having passed through the filter part to flow into the second cyclone part.

Description

vacuum cleaner

[0001] The present invention relates to a vacuum cleaner.

[0002]

[0003] In general, a vacuum cleaner is a home appliance that uses electricity to suck up air and fills a dust bin inside the product with small pieces of trash or dust. It is commonly called a vacuum cleaner.

[0004] These vacuum cleaners can be categorized into manual vacuum cleaners, which the user moves to clean, and automatic vacuum cleaners, which clean by moving around on their own. Manual vacuum cleaners can be categorized by type, including canister vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, and stick vacuum cleaners.

[0005] In the past, canister-type vacuum cleaners were widely used in household vacuum cleaners, but recently, handheld vacuum cleaners and stick vacuum cleaners that provide the dust bin and vacuum cleaner body as an integrated unit, which improves ease of use, are being widely used.

[0006] Canister-type vacuum cleaners have a main body and suction inlet connected by a rubber hose or pipe, and in some cases, a brush can be inserted into the suction inlet for use.

[0007] Handheld vacuum cleaners maximize portability. They are lightweight, but their short length limits the cleaning area they can be used in while seated. Therefore, they are used for cleaning small areas, such as desks, sofas, or inside cars.

[0008] Stick vacuums can be used standing up, allowing for cleaning without bending down. This makes them ideal for moving around and cleaning large areas. While handheld vacuums are suitable for cleaning tight spaces, stick vacuums can clean wider areas and even reach high, out-of-reach places. Recently, stick vacuums have been offered in modular configurations, allowing users to actively adapt the vacuum to suit a variety of applications.

[0009] In this regard, a vacuum cleaner is disclosed in the prior art document, Republic of Korea Patent Publication No. 10-2097439.

[0010] In the case of the above prior art document, it includes a first cyclone portion that separates dust from air drawn in from an intake portion, and a mesh portion that filters dust from air discharged from the first cyclone portion.

[0011] At this time, the vacuum cleaner of the above-mentioned prior art is structured so that the user tilts the vacuum cleaner while holding the handle, so that a lot of dust accumulates at the bottom inside the dust bin due to gravity and re-dispersion of dust generated when the suction motor is driven.

[0012] Therefore, in this state, when the suction motor is driven and suction airflow is generated, there is a problem that the suction power of the vacuum cleaner is reduced because the holes in the mesh part near the bottom inside the dustbin may become blocked.

[0013] In addition, when the suction motor is operated while most of the holes in the mesh part are blocked, dust accumulated inside the mesh part is blown away, and dust accumulates on various parts located downstream of the suction airflow based on the mesh part, which results in a problem in that the maintenance period of the vacuum cleaner is shortened.

[0014]

[0015] The present invention was created to improve the problems of the conventional vacuum cleaner as described above, and the object of the present invention is to provide a vacuum cleaner that can minimize clogging of the holes of the mesh filter when the air discharged from the first cyclone section passes through the mesh filter by maximizing the air flow in the upper part of the mesh filter where little dust accumulates and minimizing the air flow in the lower part of the mesh filter where a lot of dust accumulates.

[0016] In addition, the present invention aims to provide a vacuum cleaner capable of preventing a reduction in suction power by minimizing clogging of holes in a mesh filter.

[0017] In addition, the present invention aims to provide a vacuum cleaner capable of minimizing dust accumulation in various parts of the vacuum cleaner, including the mesh filter, the second cyclone section, the pre-filter, and the HEPA filter, by reducing dust accumulated in the lower part of the dust bin and inside the mesh filter from being scattered when the suction motor is driven.

[0018] In addition, the present invention aims to provide a vacuum cleaner that can extend the maintenance period of various parts, including a mesh filter, a second cyclone unit, a pre-filter, and a HEPA filter, by minimizing dust accumulation in the said parts.

[0019]

[0020] In order to solve the above-described problem, the vacuum cleaner according to the present invention may include: a suction unit that guides air into the interior of a dust bin; a suction device that generates a suction airflow so that air is sucked into the suction unit; a first cyclone unit that separates dust from air sucked through the suction unit; a filter unit that filters dust from air discharged from the first cyclone unit; and a guide unit that guides air passing through the filter unit to flow toward the suction device.

[0021] In order to solve the above-described problem, the vacuum cleaner according to the present invention may include a suction unit that guides air into the interior of a dust bin; a first cyclone unit that separates dust from air sucked in through the suction unit; a filter unit that filters dust from air discharged from the first cyclone unit; a second cyclone unit that separates dust from air discharged from the filter unit; and a guide unit that guides air passing through the filter unit to flow into the second cyclone unit.

[0022] The second cyclone section includes a plurality of cyclone bodies into which air discharged from the first cyclone section flows, and the guide section can be arranged between the plurality of cyclone bodies.

[0023] The above guide part can be placed between the filter part and the second cyclone part.

[0024] The above guide part can wrap around the second cyclone part while being spaced apart from the second cyclone part.

[0025] The diameter of the above guide portion may be smaller than the diameter of the above filter portion.

[0026] The second cyclone section includes a cyclone body having an inlet formed therein through which air discharged from the first cyclone section flows in; and the maximum height of the guide section may be equal to or lower than the height of the inlet.

[0027] The second cyclone section includes a cyclone body into which air discharged from the first cyclone section flows; and a support member that supports the cyclone body; and the guide member can contact the support member.

[0028] In addition, the vacuum cleaner according to the present invention further includes a virtual dustbin central axis extending along the longitudinal direction of the dustbin; and a distance from the dustbin central axis to the guide part may be smaller than a distance from the dustbin central axis to the filter part.

[0029] The second cyclone section includes a plurality of cyclone bodies into which air discharged from the first cyclone section is introduced, and at least a portion of the suction section can be disposed between the plurality of cyclone bodies.

[0030]

[0031] As described above, the vacuum cleaner according to the present invention has the effect of maximizing the air flow in the upper part of the mesh filter where little dust accumulates and minimizing the air flow in the lower part of the mesh filter where a lot of dust accumulates, thereby preventing the holes of the mesh filter from being clogged when the air discharged from the first cyclone section passes through the mesh filter.

[0032] In addition, the present invention has the effect of preventing the suction power of the vacuum cleaner from being reduced by minimizing clogging of the holes of the mesh filter.

[0033] In addition, the present invention can minimize dust accumulation in the mesh filter, the second cyclone unit, the pre-filter, and the HEPA filter by reducing the scattering of dust accumulated at the bottom of the dust bin when the suction motor is driven, thereby extending the maintenance period of various parts of the vacuum cleaner, including not only the mesh filter but also the second cyclone unit, the pre-filter, and the HEPA filter.

[0034]

[0035] Figure 1 is a schematic diagram illustrating a vacuum cleaner according to an embodiment of the present invention.

[0036] Figure 2 is a perspective view of a vacuum cleaner according to an embodiment of the present invention.

[0037] FIG. 3 is a drawing for explaining the lower surface of a dust bin of a vacuum cleaner according to an embodiment of the present invention.

[0038] Figure 4 is an exploded view of a vacuum cleaner according to an embodiment of the present invention.

[0039] FIG. 5 is a cross-sectional view illustrating a detailed configuration of a vacuum cleaner according to an embodiment of the present invention.

[0040] Figure 6 is a cross-sectional perspective view of a vacuum cleaner according to the first embodiment of the present invention.

[0041] Figure 7 is a drawing for explaining area A shown in Figure 6 in detail.

[0042] FIG. 8 and FIG. 9 are drawings for explaining a guide part according to the first embodiment of the present invention.

[0043] Fig. 10 is a cross-sectional perspective view of a vacuum cleaner according to a second embodiment of the present invention.

[0044] Figure 11 is a drawing for explaining in detail the B area illustrated in Figure 10.

[0045] Fig. 12 is a drawing for explaining a guide part of a vacuum cleaner according to a second embodiment of the present invention.

[0046] Fig. 13 is a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention.

[0047] Fig. 14 is a drawing for explaining a guide part of a vacuum cleaner according to a third embodiment of the present invention.

[0048]

[0049] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0050] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0051] The terminology used in this application is solely for the purpose of describing specific embodiments and is not intended to limit the present invention. Singular expressions may include plural expressions, unless the context clearly dictates otherwise.

[0052] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries, such as those defined in the present application, may be interpreted to have a meaning consistent with their meaning in the context of the relevant technology, and, unless explicitly defined herein, may not be interpreted in an idealized or overly formal sense.

[0053]

[0054] FIG. 1 is a schematic diagram for explaining a vacuum cleaner according to an embodiment of the present invention, FIG. 2 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, FIG. 3 is a diagram for explaining a lower surface of a dust bin of a vacuum cleaner according to an embodiment of the present invention, FIG. 4 is an exploded view of a vacuum cleaner according to an embodiment of the present invention, and FIG. 5 is a cross-sectional diagram for explaining a detailed configuration of a vacuum cleaner according to an embodiment of the present invention.

[0055] First, the structure of the vacuum cleaner (100) will be described with reference to FIGS. 1 to 5 as follows.

[0056] The vacuum cleaner (100) may refer to a vacuum cleaner that is manually operated by a user. For example, the vacuum cleaner (100) may refer to a handheld vacuum cleaner or a stick vacuum cleaner.

[0057] Meanwhile, in one embodiment of the present invention, the direction of the cleaner (100) can be defined based on the time when the bottom surface (lower surface) of the battery housing (130) is placed on the ground.

[0058] At this time, the front may refer to the direction in which the suction unit (112) is arranged based on the suction device (114), and the rear may refer to the direction in which the handle (116) is arranged based on the suction device (114). In addition, when looking at the suction unit (112) from the suction device (114), the direction in which it is arranged on the right may be referred to as the right, and the direction in which it is arranged on the left may be referred to as the left. In addition, in one embodiment of the present invention, the upper and lower sides may be defined along the direction perpendicular to the ground when the bottom surface (lower surface) of the battery housing (130) is placed on the ground.

[0059] The vacuum cleaner (100) may include a main body (110). The main body (110) may include a main body housing (111), a suction unit (112), a first cyclone unit (113), a suction device (114), an air discharge cover (115), a handle (116), and an operating unit (117).

[0060] The main body housing (111) may form the exterior of the vacuum cleaner (100). The main body housing (111) may provide a space capable of accommodating a suction device (114) and a filter (not shown) therein. The main body housing (111) may be configured in a shape similar to a cylinder.

[0061] The suction part (112) may protrude outwardly from the main body housing (111). For example, the suction part (112) may be formed in a cylindrical shape with an open interior. The suction part (112) may be coupled to an extension pipe (150). The suction part (112) may provide a path through which air containing dust may flow. The suction part (112) may be coupled to the main body (110) such that its approximate center is located at the boundary between the dust bin (120) and the main body housing (111).

[0062] Meanwhile, in the present embodiment, a virtual line penetrating the interior of a suction part (112) configured in a cylindrical shape can be formed. At this time, the virtual line may mean the longitudinal axis of the suction path.

[0063] A vacuum cleaner (100) according to an embodiment of the present invention may include at least one cyclone unit capable of separating dust by cyclone flow. For example, the vacuum cleaner (100) may include a first cyclone unit (113) and a second cyclone unit (300).

[0064] The first cyclone section (113) is a configuration that applies the principle of a dust collector that uses centrifugal force to separate dust sucked into the interior of the main body (110) through the suction section (112). That is, the first cyclone section (113) refers to a space in which a cyclone flow that rotates along the inner surface of the dust bin (120) occurs, and the first cyclone section (113) may refer to a portion of the space inside the dust bin (120).

[0065] The first cyclone unit (113) can be communicated with the suction unit (112). The first cyclone unit (113) can separate dust sucked into the interior through the suction unit (112). The space inside the first cyclone unit (113) can be communicated with the space inside the dust bin (120).

[0066] The cyclone flow generated in the first cyclone section (113) may be due to the suction force of the suction device (114).

[0067] The cyclone flow generated in the first cyclone section (113) can be formed between the inner surface of the dustbin (120) and the outer surface of the case (210) described later. That is, the cyclone flow can be formed inside the first cyclone section (113).

[0068] The space inside the first cyclone section (113) can be communicated with the suction section (112). Air and dust sucked through the suction section (112) flow along the inner surface of the first cyclone section (113), thereby generating a cyclonic flow in the inner space of the first cyclone section (113).

[0069] For example, the cyclone flow generated in the first cyclone section (113) may be formed to surround the inner circumference of the dust bin (120) in a circular shape. The air sucked in through the suction section (112) flows in a circular shape along the inner circumference of the dust bin (120) based on the central axis (a1) of the dust bin (120), thereby allowing a cyclone flow to occur in the inner space of the first cyclone section (113).

[0070] Specifically, when the axis (a2) of the cyclone flow generated in the first cyclone section (113) is arranged vertically downward in the direction of gravity, the air sucked through the suction section (112) can flow in a circular shape along the inner surface of the dustbin (120) based on the central axis (a1) of the dustbin (120). Alternatively, when the axis (a2) of the cyclone flow generated in the first cyclone section (113) is arranged parallel to the ground, the air sucked through the suction section (112) can flow in a circular shape along the inner surface of the dustbin (120) based on the central axis (a1) of the dustbin (120).

[0071] As another example, the cyclone flow generated in the first cyclone section (113) may be formed in a spiral shape along the inner circumference of the dustbin (120). That is, the air sucked in through the suction section (112) flows in a spiral shape along the inner circumference of the dustbin (120), thereby generating a cyclone flow in the internal space of the first cyclone section (113).

[0072] Specifically, when the axis (a2) of the cyclone flow generated in the first cyclone section (113) is arranged to be inclined with respect to the ground, the air sucked through the suction section (112) can flow in a spiral shape along the inner circumference of the dust bin (120).

[0073] The vacuum cleaner (100) according to an embodiment of the present invention may include a second cyclone unit (300) that separates dust again from the air discharged from the first cyclone unit (113). That is, the second cyclone unit (300) can filter out small dust particles that the first cyclone unit (113) and the filter unit (200) could not filter out from the air that passed through the first cyclone unit (113) and the filter unit (200).

[0074] At this time, the second cyclone unit (300) may be positioned inside the first cyclone unit (113) so as to minimize the size of the vacuum cleaner (100). The second cyclone unit (300) may be positioned below the suction device (114). Specifically, the second cyclone unit (300) may be positioned inside the filter unit (200). That is, the first cyclone unit (113) and the second cyclone unit (300) may be positioned inside the dust bin (120) with the filter unit (200) interposed therebetween.

[0075] The second cyclone unit (300) may include a plurality of cyclone bodies (310) arranged in parallel. Accordingly, the air discharged from the first cyclone unit (113) may pass through the filter unit (200) and be divided into a plurality of cyclone bodies (310). That is, the cyclone flow generated in the second cyclone unit (113) may be formed inside the cyclone body (310).

[0076] Meanwhile, the second cyclone section (300) may also include a single cyclone body (310), and in this case, the axis (a2) of the cyclone flow generated in the second cyclone section (300) may extend in the vertical direction.

[0077] In addition, the axis (a2) of the cyclone flow generated in the first cyclone section (200) may also extend in the vertical direction. Accordingly, the axis (a2) of the cyclone flow generated in the first cyclone section (113) and the axis (a2) of the cyclone flow generated in the second cyclone section (300) may form a coaxial line in the vertical direction or may be formed in parallel.

[0078] A storage member (211) for storing dust separated from the second cyclone unit (300) may be placed inside the dust bin (120). The storage member (211) may be connected to the lower side of the case (210) and may be in contact with the upper surface of the discharge cover (122). In addition, the lower side of the storage member (211) may be open.

[0079] The storage member (211) can divide the space inside the dust bin (120) into a first dust storage unit (211a) where dust separated from the first cyclone unit (113) is stored, and a second dust storage unit (211b) where dust separated from the second cyclone unit (300) is stored.

[0080] Accordingly, the space between the storage member (211) and the dust bin (120) can be defined as the first dust storage unit (211a), and the lower internal space of the storage member (211) can be defined as the second dust storage unit (211b).

[0081] The discharge cover (122) can open and close the first dust storage unit and the second dust storage unit together. That is, the first dust storage unit and the second dust storage unit can be exposed together to the outside.

[0082] The suction device (114) can generate a suction airflow that sucks in air. The suction device (114) can be accommodated within the main body housing (111).

[0083] The suction device (114) may refer to a suction motor. That is, the suction device (114) may generate suction force by rotation. For example, the suction device (114) may be provided in a shape similar to a cylinder.

[0084] At this time, a cyclone flow may be generated by the suction force of the suction device (114).

[0085] Specifically, when the suction device (114) is operated, air sucked through the suction unit (112) by the suction force of the suction device (114) can generate a cyclonic flow in the first cyclone unit (113) and / or the second cyclone unit (300).

[0086] Meanwhile, in this embodiment, a rotation axis (a3) ​​of a virtual suction device can be formed by extending the rotation axis of the suction device (114).

[0087] The suction device (114) may be positioned inside the main body housing (111). And, at least a portion of the suction device (114) may be positioned above the second cyclone unit (300). Accordingly, the suction device (114) may be positioned above the dust bin (120).

[0088] The suction device (114) can be connected to the outlet of the second cyclone section (300).

[0089] The axis (a2) of the cyclone flow of the first cyclone section (113) can penetrate the suction device (114).

[0090] In an embodiment of the present invention, when the suction device (114) is positioned above the second cyclone unit (300), the air discharged from the second cyclone unit (300) can flow directly toward the suction device (114), so that the flow path between the second cyclone unit (300) and the suction device (114) can be minimized.

[0091] An air exhaust cover (115) may be placed on one axial side of the main body housing (111). A filter for filtering air may be accommodated in the air exhaust cover (115). For example, a HEPA filter may be accommodated in the air exhaust cover (115).

[0092] An air discharge port for discharging air sucked in by the suction force of the suction device (114) may be formed in the air discharge cover (115).

[0093] A flow guide may be arranged in the air discharge cover (115). The flow guide may guide the flow of air discharged through the air discharge port.

[0094] The handle (116) can be gripped by the user. For example, the handle (116) may be formed in a similar cylindrical shape. Alternatively, the handle (116) may be formed in a curved cylindrical shape. The handle (116) may be positioned at a predetermined angle with respect to the main body housing (111), the suction device (114), or the first cyclone unit (113).

[0095] The handle (116) may include a grip portion formed in a column shape so that a user can grip it, a first extension portion connected to one longitudinal (axial) end of the grip portion and extending toward the suction device (114), and a second extension portion connected to the other longitudinal (axial) end of the grip portion and extending toward the dust bin (120).

[0096] Meanwhile, in this embodiment, a virtual gripping portion penetration line can be formed by extending along the longitudinal direction of the gripping portion (axial direction of the column) and penetrating the gripping portion.

[0097] For example, the grip portion penetration line may be a virtual line formed inside a cylindrical handle (116), and may be a virtual line formed parallel to at least a portion of the outer surface (outer circumference) of the grip portion.

[0098] The upper surface of the handle (116) may form a portion of the outer appearance of the upper surface of the vacuum cleaner (100). This prevents the components of the vacuum cleaner (100) from coming into contact with the user's arm when the user holds the handle (116).

[0099] The first extension portion may extend from the grip portion toward the main body housing (111) or the suction device (114). At least a portion of the first extension portion may extend in a horizontal direction.

[0100] The second extension may extend from the phasing portion toward the dust bin (120). At least a portion of the second extension may extend horizontally.

[0101] The control unit (117) may be positioned on the main body housing (111). The control unit (117) may be positioned on the outer surface of the main body housing (111). The control unit (117) may be composed of a plurality of buttons, and when a user presses a corresponding button, a corresponding command may be executed. The user may input an operation or stop command for the vacuum cleaner (100) through the control unit (117).

[0102] The vacuum cleaner (100) may include a dust bin (120). The dust bin (120) may be connected to a suction unit (112). A first cyclone unit (113) may be located inside the dust bin (120). The dust bin (120) may store dust separated from the first cyclone unit (113).

[0103] The dustbin (120) may include a dustbin body (121), a discharge cover (122), a dustbin compression lever (not shown), and a compressor (not shown).

[0104] The dustbin body (121) can provide a space for storing dust separated from the first cyclone section (113). For example, the dustbin body (121) can be formed in a shape similar to a cylinder.

[0105] Meanwhile, in the present embodiment, a virtual dustbin central axis (a1) may be formed by penetrating the interior (internal space) of the dustbin body (121) and extending along the longitudinal direction of the dustbin body (121) (meaning the axial direction in the cylindrical dustbin body (121)).

[0106] The lower surface (bottom surface) of the dustbin body (121) may be partially open. In addition, a lower extension (not shown) may be formed on the lower surface (bottom surface) of the dustbin body (121). The lower extension may be formed to block a portion of the lower surface of the dustbin body (121).

[0107] The dustbin (120) may include a discharge cover (122). The discharge cover (122) may be placed on the lower surface of the dustbin (120).

[0108] The discharge cover (122) may be provided to open and close one end in the longitudinal direction of the dustbin body (121). Specifically, the discharge cover (122) may selectively open and close the lower part of the dustbin (120) that opens downward.

[0109] The discharge cover (122) may include a cover body and a hinge part. The cover body may be formed to block a portion of the lower surface of the dustbin body (121). The cover body may rotate downward based on the hinge part. The hinge part may be arranged adjacent to the battery housing (130). A torsion spring may be provided in the hinge part. Therefore, when the discharge cover (122) is separated from the dustbin body (121), the cover body may be supported in a state in which it is rotated by a predetermined angle or more about the hinge part as an axis in the dustbin body (121) by the elastic force of the torsion spring.

[0110] The discharge cover (122) can be coupled to the dust bin (120) through a hook connection. Meanwhile, the discharge cover (122) can be separated from the dust bin (120) through a coupling lever (122c). The coupling lever (122c) can be arranged at the front of the dust bin (120). Specifically, the coupling lever (122c) can be arranged on the outer surface of the front side of the dust bin (120). When an external force is applied, the coupling lever (122c) can elastically deform a hook formed extending from the cover body to release the hook connection between the cover body and the dust bin body (121).

[0111] When the discharge cover (122) is closed, the lower surface of the dust bin (120) may be blocked (sealed) by the discharge cover (122) and the lower extension.

[0112] The dustbin (120) may include a dustbin compression lever. The dustbin compression lever may be disposed outside the dustbin (120). The dustbin compression lever may be disposed outside the dustbin (120) to move up and down. The dustbin compression lever may be connected to a compressor (not shown). When the dustbin compression lever moves downward due to an external force, the compressor (not shown) may also move downward. This may provide convenience to the user. The compressor (not shown) and the dustbin compression lever may return to their original positions by an elastic member (not shown). Specifically, when the external force applied to the dustbin compression lever is removed, the elastic member may move the dustbin compression lever and the compressor (not shown) upward.

[0113] A compressor (not shown) may be placed inside the dustbin body (121). The compressor may move within the internal space of the dustbin body (121). Specifically, the compressor may move up and down within the dustbin body (121). Through this, the compressor may compress dust within the dustbin body (121) downward. In addition, when the discharge cover (122) is separated from the dustbin body (121) and the lower portion of the dustbin (120) is opened, the compressor may move from the upper portion to the lower portion of the dustbin (120) to remove foreign substances such as residual dust within the dustbin (120). Through this, the suction power of the vacuum cleaner may be improved by preventing residual dust from remaining within the dustbin (120). In addition, by preventing residual dust from remaining within the dustbin (120), an unpleasant odor caused by the residual matter may be eliminated.

[0114] The vacuum cleaner (100) may include a battery housing (130). The battery housing (130) may accommodate a battery (140). The battery housing (130) may be positioned at the lower side of the handle (116). For example, the battery housing (130) may have a hexahedral shape with an open lower side. The upper surface of the battery housing (130) may be connected to the handle (116).

[0115] The battery housing (130) may include a receiving portion that opens downward. The battery (140) may be removed through the receiving portion of the battery housing (130).

[0116] The battery housing (130) may be provided with battery terminals exposed to the outside.

[0117] When the battery terminal of the battery housing (130) and the external charging terminal (not shown) are combined, power can be supplied to the battery (140) through the battery terminal. The battery terminal can be arranged spaced apart from each other on the lower surface of the battery housing (130).

[0118] The vacuum cleaner (100) may include a battery (140).

[0119] For example, the battery (140) may be detachably coupled to the vacuum cleaner (100). The battery (140) may be detachably coupled to the battery housing (130). For example, the battery (140) may be inserted into the interior of the battery housing (130) from the bottom of the battery housing (130). With such a configuration, the portability of the vacuum cleaner (100) may be improved.

[0120] In contrast, the battery (140) may be integrally provided inside the battery housing (130). In this case, the lower surface of the battery (140) is not exposed to the outside.

[0121] The battery (140) stores electric energy and can supply power to each component including the suction device (114) of the cleaner (100). The battery (140) can be placed at the bottom of the handle (116). The battery (140) can be placed at the bottom of the dust bin (120). That is, the suction device (114) and the battery (140) are placed so as not to overlap in the front-back direction, and their heights can also be different. With respect to the handle (116), the suction device (114), which is heavier, is placed above the handle (116), and the battery (140), which is lighter, is placed below the handle (116), so that the weight of the cleaner (100) can be evenly distributed throughout. This can prevent the user's wrist from being strained when the user holds the handle (116) and cleans.

[0122] In an embodiment, when the battery (140) is coupled to the battery housing (130), the lower surface of the battery (140) may be exposed to the outside. When the vacuum cleaner (100) is placed on the floor, the battery (140) may be placed on the floor, so that the battery (140) can be immediately separated from the battery housing (130). In addition, since the lower surface of the battery (140) is exposed to the outside and comes into direct contact with the external air of the battery (140), the cooling performance of the battery (140) may be improved.

[0123] Meanwhile, when the battery (140) is integrally fixed to the battery housing (130), the structure for attaching and detaching the battery (140) and the battery housing (130) can be reduced, so the overall size of the vacuum cleaner (100) can be reduced and its weight can be reduced.

[0124] The vacuum cleaner (100) may include an extension tube (150). The extension tube (150) may be connected to a cleaning module. The extension tube (150) may be connected to a main body (110). The extension tube (150) may be connected to a suction portion (112) of the main body (110). The extension tube (150) may be formed in a long cylindrical shape.

[0125] The main body (110) can be connected to an extension pipe (150). The main body (110) can be connected to a cleaning module through the extension pipe (150). The main body (110) can generate suction force through a suction device (114) and provide suction force to the cleaning module through the extension pipe (150). External dust can be introduced into the main body (110) through the cleaning module and the extension pipe (150).

[0126] The vacuum cleaner (100) may include a cleaning module (160). The cleaning module (160) may be connected to an extension pipe (150). Accordingly, external air may be drawn into the main body (110) of the vacuum cleaner (100) through the cleaning module (160) and the extension pipe (150) by the suction force generated in the main body (110) of the vacuum cleaner (100).

[0127]

[0128] A vacuum cleaner according to an embodiment of the present invention may include a filter unit (200).

[0129] The filter unit (200) can filter the air discharged from the first cyclone unit (113). The filter unit (200) can guide the air, from which dust has been separated while passing through the first cyclone unit (113), to the second cyclone unit (300).

[0130] The filter unit (200) may include a case (210) and a mesh filter (220).

[0131] The case (210) can be placed inside the dustbin (120). The case (210) can be placed inside the first cyclone unit (113).

[0132] A space may be formed inside the case (210). A second cyclone unit (300) may be placed inside the case (210).

[0133] The case (210) may be formed in a cylindrical shape, although this is not limited to the shape.

[0134] The central axis (a4) of the case (210) may extend in the vertical direction. The central axis (a4) of the case (210) may extend along the longitudinal direction of the case (210).

[0135] The case (210) may be composed of an upper case (210a) and a lower case (210b). The upper case (210a) may be coupled to the upper edge of the mesh filter (220), and the lower case (210b) may be coupled to the lower edge of the mesh filter (220).

[0136] For example, the central axis (a4) of the case (210) may be formed coaxially with the axis (a2) of the cyclone flow generated in the first cyclone section (113). As another example, the central axis (a4) of the case (210) may be formed parallel to the axis (a2) of the cyclone flow generated in the first cyclone section (113). As yet another example, the central axis (a4) of the case (210) may be formed coaxially with the rotational axis (a3) ​​of the suction device (114).

[0137] The mesh filter (220) can filter out dust from the air discharged from the first cyclone section (113).

[0138] The mesh filter (220) may have a plurality of holes having a predetermined diameter. Accordingly, large foreign substances contained in the air discharged from the first cyclone section (113) can be filtered by the mesh filter (220).

[0139] The mesh filter (220) may be placed in the case (210). The mesh filter (220) may mean a part of the case (210). Alternatively, the mesh filter (220) may be placed between the cases (210). For example, the case (210) may be composed of an upper case (210a) and a lower case (210b), and the upper edge of the mesh filter (220) may be coupled to the upper case (210a), and the lower edge of the mesh filter (220) may be coupled to the lower case (210b).

[0140] Air passing through the mesh filter (220) can be introduced into the second cyclone section (300) placed inside the case (210).

[0141] At this time, the outer side and / or outside of the case (210) may mean the direction facing the first cyclone unit (113) based on the case (210), and the inner side and / or inside of the case (210) may mean the direction facing the second cyclone unit (300) based on the case (210).

[0142]

[0143] A vacuum cleaner according to an embodiment of the present invention may include a second cyclone unit (300).

[0144] The second cyclone unit (300) may be arranged at least partially inside the first cyclone unit (113) and may separate dust from the air discharged from the first cyclone unit (113). After the dust is separated from the air by the first cyclone unit (113), the air discharged from the first cyclone unit (113) may flow into the second cyclone unit (300) along the flow path.

[0145] The second cyclone section (300) may be formed by a set of axial cyclones configured to separate dust from air flowing in the axial direction. The set of axial cyclones may include a cyclone body (310) and a dust separation unit (320).

[0146] The second cyclone unit (300) may include a cyclone body (310), a dust separation unit (320), and a guide vane (330).

[0147] The cyclone body (310) is a structure that applies the principle of a dust collector that uses centrifugal force to separate dust from air that has passed through the filter unit (200). Specifically, the cyclone body (310) can separate dust from air that has passed through the mesh filter (220) by using cyclone flow. Since a space through which air can flow can be formed inside the cyclone body (310), air that has passed through the mesh filter (220) can be introduced into the inside of the cyclone body (310).

[0148] The cyclone body (310) may be placed inside the case (210). Specifically, at least a portion of the cyclone body (310) may be placed inside the case (210), and air passing through the mesh filter (220) may be introduced into the inside of the cyclone body (310).

[0149] A plurality of cyclone bodies (310) may be provided. Each cyclone body (310) may be formed with an inlet (310a) forming an outer wall around the hollow portion. The outer walls around the hollow portion formed by the cyclone bodies (310) may correspond to the outer walls of each axial cyclone. Air discharged from the first cyclone section (113) may be introduced into the cyclone body (310) through the inlet (310a). Air circulating along the inner surface of the cyclone body (310) may form a cyclone flow.

[0150] Dust, which is heavier than air, can rotate within a vortex with a larger rotation radius than air. Since the dust rotates inside the cyclone body (310), the maximum rotation radius of the dust can be defined by the cyclone body (310).

[0151] The lower part of the cyclone body (310) may have a slanted shape that becomes narrower as it goes down. The lower part of the cyclone body (310) has a shape that becomes narrower as it goes down to induce the falling of dust separated from the air and prevent the dust from being discharged along the air to the vortex finder (321).

[0152] The lower part of the cyclone body (310) may be supported by a support member (212). The support member (212) may be arranged to surround the outer surface of each cyclone body (310). A plurality of through holes may be formed in the support member (212) at positions facing the cyclone body (310), and the lower part of the cyclone body (310) may be inserted into each of the through holes. Since the lower part of the cyclone body (310) has an inclined shape that becomes narrower as it goes downward, the cyclone body (310) may be supported by the support member (212) at a position where the outer surface of the cyclone body (310) and the size of the through hole are the same.

[0153] The support member (212) can divide the internal space of the filter unit (200) into a space in which air flows before passing through the cyclone body (310) and a space in which air that has passed through the cyclone body (310) flows. At this time, the space in which air that has passed through the cyclone body (310) flows may be the first dust storage unit (230a).

[0154] A fixing groove (not shown) may be provided in the support member (212). The fixing groove may be arranged along the outer circumference of the support member (212), and the fixing groove may be coupled to a fixing projection (not shown) arranged on the inner circumference of the case (210) so as to set a coupling position and prevent arbitrary relative rotation. Since arbitrary relative rotation may occur between the dust separation unit (320) and the case (210), arbitrary relative rotation must be prevented for normal operation of the second cyclone unit (300).

[0155] The fixing protrusion of the case (210) is formed to be insertable into the fixing groove, and may be formed on either the support member (212) or the case (210). The fixing groove of the support member (212) is formed to receive the fixing protrusion of the case (210), and may be formed on the other of the support member (212) and the case (210). In addition, the fixing groove of the support member (212) and the fixing protrusion of the case (210) may be provided in multiple numbers.

[0156] An exhaust port may be formed at the bottom of the cyclone body (310). That is, dust separated from the air inside the cyclone body (310) may be discharged from the cyclone body (310) through the exhaust port. In addition, the bottom of the cyclone body (310) may be communicated with the internal space of the storage member (211). Therefore, dust rotating along the vortex inside the cyclone body (310) may fall and be stored in the storage member (211). The dust stored in the storage member (211) may be communicated with the external space when the exhaust cover (122) is opened.

[0157] The upper portion of the cyclone body (310) may be formed to accommodate a vortex finder (321). The upper portion of the cyclone body (310) may be formed to have a constant inner diameter. The upper and lower portions of the cyclone body (310) may be distinguished based on the position where the inner diameter narrows.

[0158] The outer surface of each cyclone body (310) is connected to be in contact with the surrounding cyclone bodies (310), so that a plurality of cyclone bodies (310) may form a single member. It is preferable that the cross-section of each cyclone body (310) has a circular shape as illustrated in the drawing. This is because when the cross-section of the cyclone body (310) is formed in a circular shape, even if the outer surfaces of adjacent cyclone bodies (310) are in close contact with each other, a flow path for air and dust can be formed between them. If a flow path for air and dust is formed between the cyclone bodies (310), there is an advantage in that a separate flow path structure does not need to be installed.

[0159] It is not excluded that the cross-section of each cyclone body (310) may be formed as a polygon. However, even if the cross-section of each cyclone body (310) is formed as a polygon, it is preferable that it be formed as a polygon in which a path for air and dust can be formed.

[0160] The dust separation unit (320) may be positioned above the cyclone body (310) to form a set of axial cyclones together with the cyclone body (310). The cyclone body (310) may form a portion of the set, and the dust separation unit (320) may form the remaining portion of the set. That is, a set of axial cyclones may be formed by a plurality of cyclone bodies (310) and one member.

[0161] The dust separation unit (320) may include a vortex finder (321), a band member (322), a frame member (323), and a fixing member (324). Since the dust separation unit may be a single integral member, the vortex finder (321), the band member (322), the frame member (323), and the fixing member (324) may represent respective parts of the dust separation unit (320).

[0162] The vortex finder (321) is configured to discharge air that has passed through the cyclone flow inside the cyclone body (310). A path through which air can flow may be formed inside the vortex finder (321). A plurality of vortex finders (321) may be provided, and at least a portion of each vortex finder (321) may be disposed inside each cyclone body (310). The outer surface of each vortex finder (321) may be spaced apart from the inner surface of each cyclone body (310). Each vortex finder (321) has an inlet that forms an outer wall around the hollow portion, and air that has passed through the cyclone body (310) may be discharged through the inlet of each vortex finder (321). Additionally, air introduced into the inlet of the vortex finder (321) can flow upward and be discharged through the outlet (321a) of the vortex finder (321).

[0163] The lower portion of the vortex finder (321) may have a higher height than the band member (322). However, the upper portion of the vortex finder (321) may have the same height as the band member (322). In the drawing, it can be seen that the lower portion of the vortex finder (321) protrudes below the dust separation unit (320), but the upper portion does not.

[0164] It is preferable that the cross-section of each vortex finder (321) has a circular ring shape. It is not excluded that the cross-section of each vortex finder (321) is formed into a polygon. However, even if the cross-section of each vortex finder (321) is formed into a polygon, it is preferable that it be formed into a polygon in which air and dust passages can be formed.

[0165] The band member (322) may be formed to surround the outer surface of the vortex finder (321). At this time, the band member (322) may be named by another name as needed. For example, names such as a ring portion, a ring portion, a border portion, a perimeter portion, a circle portion, a support portion, a connection portion, an outer portion, a cyclone boundary portion, an outer wall portion, etc. may be considered, and other names are also possible. The band member (322) may be mounted on the case (210) and may have a shape corresponding to the upper portion of the case (210). The upper portion of the case (210) may be formed in a circular shape, and the band member (322) may also be formed in a circular shape that surrounds the vortex finder (321). However, this does not exclude the possibility that the upper portion of the case (210) and the band member (322) are formed in a polygonal shape.

[0166] The band member (322) can form a guide path that guides air discharged from the first cyclone unit (113) to the inside of the cyclone body (310). Here, the guide path can mean a space between the band member (322) and the inlet (310a). That is, air discharged from the first cyclone unit (113) and passing through the mesh filter (220) can pass through the guide path and be introduced into the inside of the cyclone body (310) through the inlet (310a).

[0167] Meanwhile, a collection of axial cyclones of the vacuum cleaner according to the present invention can be formed by the flow of air passing through the cyclone body (310) and the vortex finder (321).

[0168] The position fixing step (not shown) of the dust separation unit (320) can be fitted into the step (not shown) of the case (210) to set the engagement position and prevent arbitrary relative rotation. Since arbitrary relative rotation may occur between the dust separation unit (320) and the case (210), arbitrary relative rotation must be prevented for normal operation of the second cyclone unit (300).

[0169] A fixing member (324) for fixing the support member (212) to the band member (322) may be provided on the band member (322). The fixing member (324) may be arranged on the lower surface of the band member (322). The fixing member (324) may extend downward from the center of the lower surface of the band member (322).

[0170] The fixed member (324) can be fitted into the fitting groove (311). The fitting groove (311) can be formed by cyclone bodies (310) positioned at the center among a plurality of cyclone bodies (310). That is, the outer peripheral surfaces of the cyclone bodies (310) positioned at the center among the plurality of cyclone bodies (310) are connected to be in contact with the surrounding cyclone bodies (310), so that the fitting groove (311) is surrounded by the outer peripheral surfaces of the cyclone bodies (310) positioned at the center.

[0171] The fitting groove (311) can be formed to correspond to the fixing member (324). With the fixing member (324) fitted into the fitting groove (311), a plurality of cyclone bodies (310) can be arranged radially with the fixing member (324) as the center. The fixing member (324) fitted into the fitting groove (311) is fitted into a position fixing protrusion formed on the upper surface of the support member (212) to set the coupling position, and can prevent arbitrary relative rotation between the dust separation unit (320) and the cyclone body (310).

[0172] The frame member (323) can be formed to surround the band member (322) to form a frame of the dust separation unit (320). The frame member (323) can surround the band member (322) at the outer edge of the band member (322). Meanwhile, the frame member (323) can form a fixed step together with the band member (322). That is, since a part of the side surface of the band member (322) and the lower surface of the frame member (323) form the fixed step, the case (210) can be fitted into the fixed step.

[0173] The vortex finder (321) and the band member (322) are connected to each other, and the band member (322) is connected to the frame member (323), so that the dust separation unit (320) can be formed as a single integrated member.

[0174] The guide vane (330) is configured to guide air discharged from the first cyclone section (113) toward the inside of the cyclone body (310). The guide vane (330) can form a flow path through which air introduced through the inlet can flow toward the inside of the cyclone body (310). Therefore, air flowing along the flow path formed by the guide vane (330) can form a swirling flow between the vortex finder (321) and the cyclone body (310).

[0175] At least a portion of the guide vane (330) may be positioned between the cyclone body (310) and the vortex finder (321) and may be connected to each cyclone body (310) and each vortex finder (321). One side of the guide vane (330) may be connected to the outer surface of the vortex finder (321) along a spiral direction, and the other side of the guide vane (330) may be connected to the inner surface of the cyclone body (310) along a spiral direction.

[0176] Each cyclone body (310) and each vortex finder (321) may be provided with a plurality of guide vanes (330), and the guide vanes (330) may extend in a spiral direction to generate a swirling flow. As the guide vanes (330) extend in a spiral direction, air and dust introduced into the inlet of the cyclone body (310) may form a swirling flow.

[0177] Below, the flow of air flowing through the path of the vacuum cleaner according to an embodiment of the present invention is described.

[0178] First, when the suction device (114) is operated, external air can be drawn into the interior of the dust bin (120) through the suction part (112).

[0179] Air separated from dust by the first cyclone section (113) inside the dust bin (120) can pass through the mesh filter (220) formed in the case (210) and flow into the passage between the cyclone body (310) and the case (210). At this time, the passage between the cyclone body (310) and the case (210) can be formed between the outer surface of the cyclone body (310) and the inner surface of the case (210).

[0180] Air that has passed through the mesh filter (220) can pass through the passage between the cyclone body (310) and the case (210) and then flow into the inside of the cyclone body (310) through the inlet of the cyclone body (310).

[0181] The air drawn into the inside of the cyclone body (310) can fall while forming a swirling flow and then flow upwards to pass through the vortex finder (321). The air that has passed through the vortex finder (321) can have dust filtered in the pre-filter arranged on the upper side of the second cyclone unit (300). The air that has been filtered of dust in the pre-filter can flow toward the suction device (114) arranged downstream of the suction airflow. The air that has passed through the suction device (114) can be discharged to the outside through the air discharge port of the air discharge cover (115) after passing through the HEPA filter.

[0182]

[0183] FIG. 6 is a cross-sectional perspective view of a vacuum cleaner according to a first embodiment of the present invention, FIG. 7 is a drawing for explaining area A shown in FIG. 6 in detail, and FIGS. 8 and 9 are drawings for explaining a guide part according to the first embodiment of the present invention.

[0184] Hereinafter, the guide part of the vacuum cleaner according to the first embodiment of the present invention will be described with reference to FIGS. 6 to 9.

[0185] Meanwhile, in the first to third embodiments of the present invention, the direction of the cleaner (100) can be defined based on the second cyclone unit (300). At this time, the upper side may refer to the direction in which the suction device (114) is arranged based on the second cyclone unit (300), and the lower side may refer to the direction in which the discharge cover (122) of the dust bin (120) is arranged based on the second cyclone unit (300).

[0186] The guide unit (400) according to the first embodiment of the present invention can guide the air that has passed through the filter unit (200) so that it flows into the second cyclone unit (300). In this case, if the cleaner (100) does not have the second cyclone unit (300), the guide unit (400) can guide the air that has passed through the filter unit (200) so that it flows upward toward the suction device (114).

[0187] The guide portion (400) can reduce the space in which air passing through the mesh filter (220) can flow inside the mesh filter (220). Accordingly, the air passing through the mesh filter (220) can flow upward along the guide portion (400) and be introduced into the cyclone body (310).

[0188] The guide part (400) can be placed between a plurality of cyclone bodies (310). That is, the guide part (400) can be formed of a plurality of members. Through this, the guide part (400) can block air passing through the mesh filter (220) from flowing between the plurality of cyclone bodies (310).

[0189] The guide portion (400) may be formed in a plate shape with a predetermined curvature. In addition, both ends of the guide portion (400) may be formed to correspond to the outer surface of the cyclone body (310). Accordingly, the guide portion (400) may be fitted between two cyclone bodies (310).

[0190] The guide part (400) can guide the air passing through the mesh filter (220) to the inlet (310a) of the cyclone body (310). The guide part (400) can be placed in the lower space inside the mesh filter (220). Through this, the guide part (400) can prevent the air passing through the mesh filter (220) from flowing through the outer lower part of the cyclone body (310), thereby increasing the flow amount of air flowing into the inlet (310a) of the cyclone body (310).

[0191] The distance from the dustbin central axis (a1) to the guide portion (400) may be smaller than the distance from the dustbin central axis (a1) to the filter portion (200). The distance from the dustbin central axis (a1) to the guide portion (400) may be smaller than the distance from the dustbin central axis (a1) to the mesh filter (220).

[0192] The guide part (400) can be placed between the outermost cyclone bodies (310) among the plurality of cyclone bodies (310). Therefore, the guide part (400) can block air passing through the mesh filter (220) from flowing into the center of the filter part (200).

[0193] The maximum height of the guide portion (400) may be equal to or lower than the height of the inlet (310a). The upper end of the guide portion (400) may have a height equal to or lower than the height of the inlet (310a), and the lower end of the guide portion (400) may be in contact with the support member (340).

[0194] The guide portion (400) may extend upward from the support member (340). The guide portion (400) may contact the support member (340) or be connected to the support member (340).

[0195] Air passing through the mesh filter (220) can be introduced into a space formed by the cyclone body (310), the guide portion (400), and the support member (340). In addition, air introduced into the cyclone body (310), the guide portion (400), and the support member (340) can flow toward the open upper side and be introduced into the inlet (310a) of the cyclone body (310).

[0196] The vacuum cleaner (100) of the present invention includes a guide part (400) that is placed inside the mesh filter (220) and has a predetermined height, so that air discharged from the first cyclone part (113) can be largely introduced through the upper part of the mesh filter (220).

[0197] In addition, since the dust stored in the dust bin (120) accumulates more at the top of the dust bin (120) than at the bottom, if more suction airflow is delivered to the top of the mesh filter (220) than at the bottom, the phenomenon of the holes of the mesh filter (220) being clogged by dust in the air discharged from the first cyclone unit (113) can be reduced.

[0198]

[0199] FIG. 10 is a cross-sectional perspective view of a vacuum cleaner according to a second embodiment of the present invention, FIG. 11 is a drawing for explaining area B shown in FIG. 10 in detail, and FIG. 12 is a drawing for explaining a guide part of a vacuum cleaner according to the second embodiment of the present invention.

[0200] Hereinafter, the guide part of the vacuum cleaner according to the second embodiment of the present invention will be described with reference to FIGS. 10 to 12.

[0201] To avoid redundant description, except for what is specifically mentioned in the second embodiment of the present invention, other configurations may be cited from the contents of the cleaner according to the first embodiment of the present invention.

[0202] The guide part (1400) according to the second embodiment of the present invention has a difference in that it is made of a single member, unlike the guide part (400) according to the first embodiment, which is made of a plurality of members.

[0203] Additionally, the guide part (1400) may be placed between the filter part (200) and the second cyclone part (300). Specifically, the guide part (1400) may surround the second cyclone part (300) while being spaced apart from the second cyclone part (300). That is, the guide part (1400) may be a ring-shaped member surrounding a plurality of cyclone bodies (310).

[0204] In addition, since the guide part (1400) is placed between the mesh filter (220) and the plurality of cyclone bodies (310), the diameter of the guide part (1400) may be smaller than the diameter of the filter part (200).

[0205]

[0206] Fig. 13 is a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention, and Fig. 14 is a drawing for explaining a guide part of a vacuum cleaner according to the third embodiment of the present invention.

[0207] To avoid redundant description, except for what is specifically mentioned in the third embodiment of the present invention, other configurations may be cited from the contents of the cleaner according to the first embodiment of the present invention.

[0208] The vacuum cleaner according to the third embodiment of the present invention has a difference in that the position and structure of the suction part (2112) and the extension pipe (2150) are different from those of the suction part (112) and the extension pipe (150) of the vacuum cleaner according to the first embodiment.

[0209] Specifically, the extension pipe (150) according to the first embodiment of the present invention is arranged to perpendicularly intersect the dustbin central axis (a1), while the extension pipe (2150) according to the third embodiment may be arranged to coincide with or be parallel to the dustbin central axis (a1).

[0210] Accordingly, at least a portion of the suction portion (2112) may be positioned between the plurality of cyclone bodies (310). Additionally, at least a portion of the extension pipe (2150) may also be positioned between the plurality of cyclone bodies (310).

[0211]

[0212] Although the present invention has been described in detail through specific examples, this is for the purpose of specifically explaining the present invention, and the present invention is not limited thereto, and it is clear that the present invention can be modified or improved by a person having ordinary knowledge in the relevant field within the technical spirit of the present invention.

[0213] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims

1. A suction part that guides air into the inside of the dustbin; A suction device that generates a suction airflow so that air is sucked into the above suction unit; A first cyclone section that separates dust from air sucked through the above suction section; A filter section that filters dust from the air discharged from the first cyclone section; and A vacuum cleaner including a guide section that guides air passing through the filter section to flow toward the suction device.

2. A suction part that guides air into the inside of the dustbin; A first cyclone section that separates dust from air sucked through the above suction section; A filter section that filters dust from the air discharged from the first cyclone section; A second cyclone section that separates dust from the air discharged from the filter section; and A vacuum cleaner including a guide section that guides air passing through the filter section to flow into the second cyclone section.

3. In paragraph 2, The above second cyclone section, It comprises a plurality of cyclone bodies into which air discharged from the first cyclone section is introduced; A cleaner characterized in that the above guide part is arranged between a plurality of the above cyclone bodies.

4. In paragraph 2, A vacuum cleaner characterized in that the guide part is arranged between the filter part and the second cyclone part.

5. In paragraph 2, A vacuum cleaner characterized in that the guide part surrounds the second cyclone part while being spaced apart from the second cyclone part.

6. In paragraph 5, A vacuum cleaner characterized in that the diameter of the guide part is smaller than the diameter of the filter part.

7. In paragraph 2, The above second cyclone section, A cyclone body having an inlet formed through which air discharged from the first cyclone section flows in; A vacuum cleaner characterized in that the maximum height of the guide part is equal to or lower than the height of the inlet.

8. In paragraph 2, The above second cyclone section, A cyclone body into which air discharged from the first cyclone section is introduced; and including a support member supporting the above cyclone body; A vacuum cleaner characterized in that the guide part is in contact with the support member.

9. In paragraph 2, Further comprising a virtual dustbin central axis extending along the longitudinal direction of the dustbin; A vacuum cleaner characterized in that the distance from the central axis of the dustbin to the guide part is smaller than the distance from the central axis of the dustbin to the filter part.

10. In paragraph 2, The above second cyclone section, It comprises a plurality of cyclone bodies into which air discharged from the first cyclone section is introduced, A vacuum cleaner, characterized in that at least a portion of the suction unit is disposed between a plurality of cyclone bodies.

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