cleaner

Abstract

The present invention relates to a cleaner and may include a main body including a dust bin in which dust is stored, a suction part configured to guide air to an inside of the dust bin, a first filter having at least a portion disposed therein and filtering dust from air introduced through the suction part, a second filter configured to filter dust from air passing through the first filter, and a cleaning unit disposed to move with respect to the first filter and the second filter, wherein the first filter includes a first filter surface on which first dust that is dust filtered by the first filter is accumulated, the second filter includes a second filter surface on which second dust that is dust filtered by the second filter is accumulated, and the cleaning unit sweeps the first dust and the second dust from the first filter surface and the second filter surface, respectively.

Description

[Technical Field]

[0001] The present invention relates to a cleaner.[Background Art]

[0002] In general, a cleaner is a home appliance for suctioning small trash or dust in a manner of suctioning air using electricity and filling the same in a dust bin inside a product and is commonly called a vacuum cleaner.

[0003] The vacuum cleaner may be classified into a manual vacuum cleaner for allowing a user to directly perform cleaning while moving the cleaner, and an automatic vacuum cleaner for performing cleaning while traveling by itself. Depending on the type of the vacuum cleaner, the manual vacuum cleaner may be classified into a canister-type vacuum cleaner, an upright vacuum cleaner, a hand vacuum cleaner, a stick-type vacuum cleaner, etc.

[0004] In the past, the canister-type vacuum cleaner was widely used as the household vacuum cleaner, but recently, the hand vacuum cleaner and the stick-type vacuum cleaner, which provide improved convenience of use by providing a dust bin and a cleaner body, are increasingly being used.

[0005] The canister-type vacuum cleaner has a main body and a suction port connected by a rubber hose or a pipe and in some cases, may be used by inserting a brush into the suction port.

[0006] The hand vacuum cleaner is designed to maximize portability and has lightweight and a short length, and thus can have a limited cleaning area. Therefore, the hand vacuum cleaner is used to clean localized sites, such as on a desk, a sofa, or a vehicle interior.

[0007] A user may use the stick-type vacuum cleaner while standing to enable cleaning without bending down. Therefore, it is advantageous for cleaning a wide region while moving. While the hand vacuum cleaner cleans narrow spaces, the stick-type vacuum cleaner may clean wider spaces and clean high places out of reach. Recently, the stick-type vacuum cleaner has been provided in a module type to allow users to actively change a vacuum cleaner type for various purposes.

[0008] Meanwhile, International Patent Publication No. 2023-089298 discloses a dirt separator.

[0009] The dirt separator according to the related art document includes a first filter for separating dirt from air introduced through an air inlet, a second filter for re-separating dirt from air passing through the first filter, and a wiper blade for directly removing dirt accumulated in the first filter and at the same time, indirectly removing dirt accumulated in the second filter while moving up and down.

[0010] Since air passes from an outer surface to an inner surface of the first filter and the air passing through the first filter passes from an inner surface to an outer surface of the second filter when a suction motor operates, the dirt separator of the related art document has a structure in which dirt accumulates on the outer surface of the first filter and the inner surface of the second filter.

[0011] Therefore, in the dirt separator of the related art document, the wiper blade may directly sweep the dirt accumulated on the outer surface of the first filter while moving up and down, and at the same time, a protrusion connected to the wiper blade may separate the dirt accumulated on the inner surface of the second filter by tapping the outer surface of the second filter.

[0012] However, according to the related art document, the dirt accumulated on the first filter may be directly removed by moving the wiper blade, but there is a limitation in that it is not efficient in removing the dirt accumulated in the second filter. Therefore, when the dirt accumulated in the second filter is not removed, there is a problem that the suction performance of the dirt separator is degraded.[Related Art Documents][Patent Documents]

[0013] (Patent Document 0001) International Patent Publication No. 2023-089298[Disclosure][Technical Problem]

[0014] The present invention has been made in efforts to solve the problems and is directed to providing a cleaner capable of removing dust accumulated in at least one filter with a simple operation of a user pushing or pulling a manipulation lever.

[0015] In addition, the present invention is directed to providing a cleaner capable of improving the filtration performance of a filter and the suction performance by a suction motor by directly sweeping a surface on which dust accumulates of outer and inner surfaces of each filter.

[0016] In addition, the present invention is directed to providing a cleaner capable of minimizing a user's force moving a manipulation lever by minimizing a distance between a cleaning unit for removing dust accumulated in a first filter and a second filter and the manipulation lever for moving the cleaning unit.

[0017] In addition, the present invention is directed to providing a cleaner capable of being moved by a user's minimal force by arranging the overall center of gravity of the cleaner as close as possible to a handle gripped by the user.

[0018] In addition, the present invention is directed to providing a cleaner whose overall size can be minimized by arranging a first filter outside a second cyclone part and a second filter inside a second cyclone part.[Technical Solution]

[0019] To achieve the objects, a cleaner according to the present invention may include a main body including a dust bin in which dust is stored, a suction part configured to guide air to an inside of the dust bin, a first filter having at least a portion disposed therein and filtering dust from air introduced through the suction part, a second filter configured to filter dust from air passing through the first filter, and a cleaning unit disposed to move with respect to the first filter and the second filter, wherein the first filter includes a first filter surface on which first dust that is dust filtered by the first filter is accumulated, the second filter includes a second filter surface on which second dust that is dust filtered by the second filter is accumulated, and the cleaning unit sweeps the first dust and the second dust from the first filter surface and the second filter surface, respectively.

[0020] In addition, the cleaner according to a first embodiment of the present invention may further include a suction motor configured to generate a suction airflow so that air is suctioned through the suction part, wherein a virtual suction motor axis line extending a rotational axis of the suction motor may intersect a longitudinal axis of the dust bin.

[0021] The suction part and the suction motor may be disposed at opposite sides with respect to the longitudinal axis of the dust bin.

[0022] The main body may further include a filter housing which is detachably coupled to the dust bin and in which the second filter is accommodated.

[0023] A filter entrance part through which the first enters and exits may be formed at one side of the filter housing.

[0024] The cleaning unit may include a first movable part configured to move along a space between the first filter surface and an inner surface of the dust bin in the dust bin, a second movable part configured to move along a space between the second filter surface and an inner surface of the filter housing in the filter housing, and a connection part passing through the filter housing and connecting the first movable part to the second movable part.

[0025] The cleaning unit may further include a manipulation housing coupled to the main body, a guide member extending in moving directions of the first movable part and the second movable part inside the manipulation housing, a manipulation lever moved along the guide member and having at least a portion exposed to the outside, and an elastic member disposed on the guide member and having one side connected to the manipulation lever and the other side connected to the connection part.

[0026] The filter entrance part may be opened in a direction in which the elastic member is elastically restored.

[0027] The connection part and the guide member may be disposed in the same quadrant of four quadrants partitioned by a horizontal center line intersecting the center of the dust bin and a vertical center line intersecting the center of the dust bin.

[0028] In addition, in a cleaner according to a second embodiment of the present invention, at least a portion of the second filter may be disposed inside the first filter.

[0029] The first filter and the second filter may be formed coaxially.

[0030] The main body may further include a filter housing which is disposed inside the dust bin and in which at least a portion of the second filter is accommodated.

[0031] In addition, the cleaner according to the second embodiment of the present invention may further include a plurality of cyclone bodies disposed inside the filter housing and disposed to surround the second filter around the second filter.

[0032] The cleaning unit may include a first movable part configured to move along a space between the first filter surface and an inner surface of the dust bin in the dust bin, a second movable part configured to move along a space between the second filter surface and an inner surface of the filter housing in the filter housing, and a connection part passing through the filter housing and connecting the first movable part to the second movable part.

[0033] The cleaning unit may further include a manipulation housing coupled to the main body, a guide member extending in moving directions of the first movable part and the second movable part inside the manipulation housing, a manipulation lever moved along the guide member and having at least a portion exposed to the outside, and an elastic member disposed on the guide member and having one side connected to the manipulation lever and the other side connected to the connection part.

[0034] The connection part and the guide member may be disposed in the same quadrant of four quadrants partitioned by a horizontal center line intersecting the center of the dust bin and a vertical center line intersecting the center of the dust bin.[Advantageous Effects]

[0035] As described above, according to the cleaner according to the present invention, it is possible to remove the dust accumulated in at least one filter with the simple operation of the user pushing or pulling the manipulation lever.

[0036] In addition, according to the present invention, it is possible to improve the filtration performance of the filter and the suction performance by the suction motor by directly sweeping the surface on which dust accumulates of the outer and inner surfaces of each filter.

[0037] In addition, according to the present invention, it is possible to minimize the user's force moving the manipulation lever by minimizing the distance between the cleaning unit for removing dust accumulated in the first filter and the second filter and the manipulation lever for moving the cleaning unit.

[0038] In addition, according to the present invention, the user can move the cleaner with the minimal force by arranging the overall center of gravity of the cleaner as close as possible to the handle gripped by the user.

[0039] In addition, according to the present invention, it is possible to minimize the overall size of the cleaner by arranging the first filter outside the second cyclone part and the second filter inside the second cyclone part.[Description of Drawings]

[0040] FIG. 1 is a perspective view of a cleaner according to a first embodiment of the present invention. FIG. 2A is a cross-sectional view of the cleaner according to the first embodiment of the present invention. FIG. 2B is a cross-sectional view showing a state in which a cleaning unit in FIG. 2A has been moved down. FIG. 3 is an exploded view of the cleaner according to the first embodiment of the present invention. FIG. 4 is a view for describing a manipulation lever and an elastic member of the cleaner according to the first embodiment of the present invention. FIG. 5 is a view for describing a detailed configuration of the cleaning unit according to the first embodiment of the present invention. FIG. 6 is a view for describing the arrangement relationship between a connection part and a guide member according to the first embodiment of the present invention. FIG. 7 is a perspective view of a cleaner according to a second embodiment of the present invention. FIG. 8A is a cross-sectional view of the cleaner according to the second embodiment of the present invention. FIG. 8B is a cross-sectional view showing a state in which the cleaning unit in FIG. 8A has been moved down. FIG. 9 is an exploded view of the cleaner according to the second embodiment of the present invention. FIG. 10 is a perspective view of a filter housing according to the second embodiment of the present invention. FIG. 11 is a plan view of the filter housing according to the second embodiment of the present invention. FIG. 12 is a cross-sectional view along line 1-1 in FIG. 11. FIG. 13 is a view for describing the arrangement relationship between a connection part and a guide member according to the second embodiment of the present invention. [Mode for Invention]

[0041] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0042] Since the present invention may have various changes and various embodiments, specific embodiments are shown in the accompanying drawings and specifically described in the detail descriptions. This is not intended to limit the present invention to specific embodiments and should be construed to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention.

[0043] The terms used in the present application are only used to describe specific embodiments and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

[0044] Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms defined in a generally used dictionary can be construed as meanings that match with the meanings of the terms from the context of the related technology and are not construed as an ideal or excessively formal meaning unless clearly defined in the present application.

[0045] FIG. 1 is a perspective view of a cleaner according to a first embodiment of the present invention, FIG. 2A is a cross-sectional view of the cleaner according to the first embodiment of the present invention, FIG. 2B is a cross-sectional view showing a state in which a cleaning unit in FIG. 2A has been moved down, FIG. 3 is an exploded view of the cleaner according to the first embodiment of the present invention, FIG. 4 is a view for describing a manipulation lever and an elastic member of the cleaner according to the first embodiment of the present invention, FIG. 5 is a view for describing a detailed configuration of the cleaning unit according to the first embodiment of the present invention, and FIG. 6 is a view for describing the arrangement relationship between a connection part and a guide member according to the first embodiment of the present invention.

[0046] A cleaner 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6 as follows.

[0047] The cleaner 1 may be a cleaner that is manually manipulated by a user. For example, the cleaner 1 may be a hand cleaner or a stick-type cleaner.

[0048] Meanwhile, in one embodiment of the present invention, a direction of the cleaner 1 can be defined with respect to when a bottom surface (lower surface) of a battery housing 160 is placed on the ground.

[0049] In this case, the front may refer to a direction in which a suction part 120 is disposed with respect to a suction motor 140, and the rear may refer to a direction in which a handle 150 is disposed with respect to the suction motor 140. In addition, a direction located at the right may be referred to as a right side, and a direction located at the left may be referred to as a left side with respect to when viewing the suction part 120 from the suction motor 140. In addition, in one embodiment of the present invention, upper and lower sides can be defined in a direction perpendicular to the ground with respect to when the bottom surface (lower surface) of the battery housing 160 is placed on the ground.

[0050] The cleaner 1 may include a main body 100. The main body 100 may include a main body housing 110, a suction part 120, a first cyclone part 130, the suction motor 140, the handle 150, and a manipulation part 170.

[0051] The main body housing 110 may form the appearance of the cleaner 1. The main body housing 110 may provide a space in which the suction motor 140 and a second filter 500 may be accommodated. The main body housing 110 may be configured in a shape similar to a cylinder.

[0052] The suction part 120 may be disposed inside a dust bin 200. As an example, the suction part 120 may be formed in a pipe shape with an open interior. The suction part 120 may be coupled to an extension pipe (not shown). The suction part 120 may provide a suction flow path 120a through which air including dust may flow.

[0053] The suction part 120 may be coupled to the second cyclone part 400. The suction part 120 may be coupled to cases 310 and 1310 of the second cyclone part 400.

[0054] At least a portion of the suction part 120 may be disposed inside the second cyclone part 400. Specifically, at least a portion of the suction part 120 may be disposed to be surrounded by a plurality of cyclone bodies 410. Therefore, at least a portion of the suction part 120 may extend in a direction that is the same as or parallel to a direction in which a suction motor axis line a1 extends.

[0055] The suction part 120 may be formed in a bent shape. One end portion of the suction part 120 may be formed to pass through a cover main body 221 of a discharge cover 220. The other end portion of the suction part 120 may be formed to pass through an outer circumferential surface of the second cyclone part 400 (outer circumferential surface of the case 310 or 1310 or a first filter 320). Therefore, air suctioned from the outside through the suction part 120 may flow through a suction flow path 120a and may be discharged into the dust bin 200.

[0056] The cleaner 1 according to the embodiment of the present invention may be provided with at least one cyclone part capable of separating dust by a cyclonic flow. For example, the cleaner 1 may include a first cyclone part 130 and the second cyclone part 400.

[0057] The first cyclone part 130 is a component that adopts the principle of a dust collector that uses a centrifugal force to separate dust suctioned into the main body 100 through the suction part 120. That is, the first cyclone part 130 may refer to a space in which a cyclonic flow circulating along an inner circumferential surface of the dust bin 200, and the first cyclone part 130 may refer to a partial region of a space inside the dust bin 200.

[0058] The first cyclone part 130 may communicate with the suction part 120. The first cyclone part 130 may separate dust suctioned therein through the suction part 120. The space inside the first cyclone part 130 may communicate with the space inside the dust bin 200.

[0059] The cyclonic flow generated from the first cyclone part 130 may be generated by a suction force of the suction motor 140.

[0060] The cyclonic flow generated from the first cyclone part 130 may be formed between an inner surface of the dust bin 200 and outer surfaces of the cases 310 and 1310 to be described below. That is, the cyclonic flow may be formed inside the first cyclone part 130.

[0061] A space inside the first cyclone part 130 may communicate with the suction part 120. The air and dust suctioned through the suction part 120 may flow along the inner circumferential surface of the first cyclone part 130, and thus a cyclonic flow may be generated in an internal space of the cyclone part 130.

[0062] As an example, the cyclonic flow generated from the first cyclone part 130 may be formed to surround the dust bin 200 in a circular shape along an inner circumference of the dust bin 200. The air suctioned through the suction part 120 flows in a circular shape along the inner circumferential surface of the dust bin 200 with respect to a dust bin central axis a2, and thus the cyclonic flow may be generated in an internal space of the first cyclone part 130.

[0063] Specifically, when an axis a3 of the cyclonic flow generated from the first cyclone part 130 is disposed perpendicular to a lower side in the direction of gravity, the air suctioned through the suction part 120 may flow in a circular shape along the inner circumferential surface of the dust bin 200 with respect to the dust bin central axis a2. Alternatively, when the axis a3 of the cyclonic flow generated from the first cyclone part 130 is disposed parallel to the ground, the air suctioned through the suction part 120 may flow in a circular shape along the inner circumferential surface of the dust bin 200 with respect to the dust bin central axis a2.

[0064] As another example, the cyclonic flow generated from the first cyclone part 130 may be formed in a spiral shape along the inner circumference of the dust bin 200. That is, the air suctioned through the suction part 120 may flow spirally along the inner circumference of the dust bin 200, and thus the cyclonic flow may be generated in the internal space of the first cyclone part 130.

[0065] Specifically, when the axis a3 of the cyclonic flow generated from the first cyclone part 130 is disposed to be tilted with respect to the ground, the air suctioned through the suction part 120 may flow in a spiral shape along the inner circumference of the dust bin 200.

[0066] The cleaner 1 according to the embodiment of the present invention may include the second cyclone part 400 for re-separating dust from air discharged from the first cyclone part 130. That is, the second cyclone part 400 may filter small dust that could not be removed by the first cyclone part 130 and a first filter unit 300 from the air passing through the first cyclone part 130 and the first filter unit 300.

[0067] In this case, the second cyclone part 400 may be located inside the first cyclone part 130 to minimize the size of the cleaner 1. The second cyclone part 400 may be disposed under the suction motor 140. Specifically, the second cyclone part 400 may be disposed inside the first filter unit 300. That is, the first cyclone part 130 and the second cyclone part 400 may be disposed inside the dust bin 200 with the first filter unit 300 interposed therebetween.

[0068] The second cyclone part 400 may include a plurality of cyclone bodies 410 disposed in parallel. Therefore, the air discharged from the first cyclone part 130 may pass through the first filter unit 300 and pass through a plurality of cyclone bodies 410. That is, the cyclonic flow generated from the second cyclone part 400 may be formed inside the cyclone body 410.

[0069] Meanwhile, the second cyclone part 400 may include a single cyclone body 410, and in this case, the axis a3 of the cyclonic flow generated from the second cyclone part 400 may extend in a vertical direction.

[0070] In addition, the axis a3 of the cyclonic flow generated from the first cyclone part 130 may also extend in the vertical direction. Therefore, the axis a3 of the cyclonic flow generated from the first cyclone part 130 and the axis a3 of the cyclonic flow generated from the second cyclone part 400 are formed coaxially or in parallel in the vertical direction.

[0071] Storage members 311 and 1311 in which the dust separated from the second cyclone part 400 is stored may be disposed inside the dust bin 200. The storage members 311 and 1311 may be connected to lower sides of the cases 310 and 1310 and may be in contact with an upper surface of the discharge cover 220. In addition, lower sides of the storage members 311 and 1311 may be open.

[0072] The storage members 311 and 1311 may partition the space inside the dust bin 200 into first dust storage parts 311a, 311, and 1311a in which the dust separated from the first cyclone part 130 is stored, and second dust storage parts 311b, 311, and 1311b in which the dust separated from the second cyclone part 400 is stored.

[0073] Therefore, spaces formed between the storage members 311 and 1311 and the dust bin 200 can be defined as the first dust storage parts 311a, 311, and 1311a, and lower inner spaces of the storage member 311 and 1311 can be defined as the second dust storage parts 311b, 311, and 1311b.

[0074] The discharge cover 220 may open and close the first dust storage part and the second dust storage part together. That is, the first dust storage part and the second dust storage part may be exposed to the outside together.

[0075] The suction motor 140 may generate a suction airflow that suctions air. The suction motor 140 may be accommodated in the main body housing 110.

[0076] The suction motor 140 may generate a suction force by rotation. As an example, the suction motor 140 may be provided in a shape similar to a cylindrical shape.

[0077] In this case, a cyclonic flow may be generated by the suction force of the suction motor 140.

[0078] Specifically, when the suction motor 140 is operated, the air suctioned through the suction part 120 by the suction force of the suction motor 140 may generate the cyclonic flow from the first cyclone part 130 and / or the second cyclone part 400.

[0079] A cleaner according to the present invention may include a virtual suction motor axis line a1 extending a rotational axis of the suction motor 140.

[0080] The suction motor 140 may be located inside the main body housing 110. In addition, the suction motor 140 may be located above the second cyclone part 400. Therefore, the suction motor 140 may be located above the dust bin 200.

[0081] The suction motor 140 may be connected to an outlet of the second cyclone part 400.

[0082] The axis a3 of the cyclonic flow of the first cyclone part 130 may pass through the suction motor 140.

[0083] In the embodiment of the present invention, when the suction motor 140 is located above the second cyclone part 400, the air discharged from the second cyclone part 400 may flow directly toward the suction motor 140, thereby minimizing a flow path between the second cyclone part 400 and the suction motor 140.

[0084] An air outlet 110a through which the air suctioned by the suction force of the suction motor 140 is discharged may be formed on the main body housing 110.

[0085] A flow guide may be disposed in the main body housing 110. The flow guide may guide a flow of the air discharged through the air outlet 110a.

[0086] The handle 150 may be gripped by a user. As an example, the handle 150 may be formed in a shape similar to a cylindrical shape. Alternatively, the handle 150 may be formed in a curved cylindrical shape. The handle 150 may be disposed at a predetermined angle with the main body housing 110, the suction motor 140, or the first cyclone part 130.

[0087] The handle 150 may include a grip portion formed in the form of a pillar to allow the user to grip the same, a first extension connected to one end portion in a longitudinal direction (axial direction) of the grip portion and formed to extend toward the suction motor 140, and a second extension connected to the other end portion in the direction (axial direction) of the grip portion and formed to extend toward the dust bin 200.

[0088] Meanwhile, in the present embodiment, a virtual grip portion through line formed to extend in a longitudinal direction of the grip portion (axial direction of a pillar) and passing through the grip portion may be formed.

[0089] As an example, the grip portion through line may be a virtual line formed inside the cylindrical handle 150 and may be a virtual line formed parallel to at least a portion of an outer surface (outer perimetric surface) of the grip portion.

[0090] An upper surface of the handle 150 may form a partial appearance of the upper surface of the cleaner 1. Therefore, when the user grips the handle 150, one component of the cleaner 1 can be prevented from being in contact with the user's arm.

[0091] The first extension may extend from the grip portion toward the main body housing 110 or the suction motor 140. At least a portion of the first extension may extend in a horizontal direction.

[0092] The second extension may extend from the grip portion toward the dust bin 200. At least a portion of the second extension may extend in the horizontal direction.

[0093] The manipulation part 170 may be disposed in the main body housing 110. The manipulation part 170 may be disposed on an outer surface of the main body housing 110. The manipulation part 170 may be composed of a plurality of buttons, and when a user presses a corresponding button, a corresponding command may be performed. The user may input an operation or stop command of the cleaner 1 through the manipulation part 170.

[0094] The cleaner 1 may include the dust bin 200. The dust bin 200 may communicate with the suction part 120. The first cyclone part 130 may be located inside the dust bin 200. The dust bin 200 may store the dust separated from the first cyclone part 130.

[0095] The dust bin 200 may include a dust bin main body 210, the discharge cover 220, a dust bin compression lever (not shown), and a compression member (not shown).

[0096] The dust bin main body 210 may provide a space in which the dust separated from the first cyclone part 130 may be stored. As an example, the dust bin main body 210 may be formed similarly to a cylindrical shape.

[0097] Meanwhile, in the present specification, the virtual dust bin central axis a2, which passes through the inside (internal space) of the dust bin main body 210 and formed to extend in the longitudinal direction (which refers to an axial direction in the cylindrical dust bin main body 210) of the dust bin main body 210, may be formed. Therefore, the longitudinal axis of the dust bin may be the dust bin central axis a2.

[0098] A portion of a lower surface (bottom surface) of the dust bin main body 210 may be open. In addition, a lower surface extension (not shown) may be formed on the lower surface (bottom surface) of the dust bin main body 210. The lower surface extension may be formed to block a portion of the lower surface of the dust bin main body 210.

[0099] The dust bin 200 may include the discharge cover 220. The discharge cover 220 may be disposed on the lower surface of the dust bin 200.

[0100] The discharge cover 220 may be provided to open and close one end portion of the dust bin main body 210 in the longitudinal direction. Specifically, the discharge cover 220 may selectively open and close a downward opened lower portion of the dust bin 200.

[0101] The discharge cover 220 may include the cover main body 221 and a hinge part 222. The cover main body 221 may be formed to block a portion of the lower surface of the dust bin main body 210. The cover main body 221 may rotate downward with respect to the hinge part 222. The hinge part 222 may be disposed adjacent to the battery housing 160. The hinge part 222 may be provided with a torsion spring. Therefore, when the discharge cover 220 is separated from the dust bin main body 210, the cover main body 221 may be supported in a state of being rotated about the hinge part 222 at a predetermined angle or more in the dust bin main body 210 by an elastic force of the torsion spring.

[0102] The discharge cover 220 may be coupled to the dust bin 200 through hook coupling. Meanwhile, the discharge cover 220 may be separated from the dust bin 200 through a coupling lever (not shown). The coupling lever (not shown) may be disposed in front of the dust bin 200. Specifically, the coupling lever (not shown) may be disposed on a front outer surface of the dust bin 200. When an external force is applied, the coupling lever (not shown) may elastically deform a hook formed to extend from the cover main body 221 to release the hook coupling between the cover main body 221 and the dust bin main body 210.

[0103] When the discharge cover 220 is closed, the lower surface of the dust bin 200 may be blocked (sealed) by the discharge cover 220 and the lower surface extension.

[0104] The dust bin 200 may include the dust bin compression lever. The dust bin compression lever may be disposed outside the dust bin 200. The dust bin compression lever may be disposed to move up and down outside the dust bin 200. The dust bin compression lever may be connected to a compression member (not shown). When the dust bin compression lever is moved down by an external force, the compression member (not shown) may also move down. Therefore, user convenience can be provided. The compression member (not shown) and the dust bin compression lever may be returned to original locations by an elastic member (not shown). Specifically, when the external force applied to the dust bin compression lever is removed, the elastic member may move the dust bin compression lever and the compression member (not shown) up.

[0105] The compression member (not shown) may be disposed inside the dust bin main body 210. The compression member may move in an internal space of the dust bin main body 210. Specifically, the compression member may move up and down in the dust bin main body 210. Therefore, the compression member may compress the dust in the dust bin main body 210 downward. In addition, when the discharge cover 220 is separated from the dust bin main body 210 and the lower portion of the dust bin 200 is opened, the compression member may move from the upper portion to the lower portion of the dust bin 200 to remove a foreign substance such as the remaining dust in the dust bin 200. Therefore, it is possible to increase the suction force of the cleaner by preventing the remaining dust from remaining in the dust bin 200. In addition, bad odors generated by the residue can be removed by preventing the remaining dust from remaining in the dust bin 200.

[0106] The cleaner 1 may include the battery housing 160. A battery 161 may be accommodated in the battery housing 160. The battery housing 160 may be disposed under the handle 150. As an example, the battery housing 160 may have a hexahedral shape with an open lower portion. An upper surface of the battery housing 160 may be connected to the handle 150.

[0107] The battery housing 160 may include an accommodation portion that is opened downward. The battery 161 may be detachably attached through the accommodation portion of the battery housing 160.

[0108] The battery housing 160 may be provided with a battery terminal exposed to the outside.

[0109] When the battery terminal of the battery housing 160 is coupled to an external charging terminal (not shown), power may be supplied to the battery 161 through the battery terminal. The battery terminals may be disposed to be spaced apart from each other in a left-right direction on a lower surface of the battery housing 160.

[0110] The cleaner 1 may include the battery 161.

[0111] For example, the battery 161 may be detachably coupled to the cleaner 1. The battery 161 may be detachably coupled to the battery housing 160. As an example, the battery 161 may be inserted into the battery housing 160 from the bottom of the battery housing 160. With this configuration, it is possible to improve the portability of the cleaner 1.

[0112] In contrast, the battery 161 may be provided integrally inside the battery housing 160. In this case, a lower surface of the battery 161 is not exposed to the outside.

[0113] The battery 161 may store electric energy and supply power to each component including the suction motor 140 of the cleaner 1. The battery 161 may be disposed under the handle 150. The battery 161 may be disposed at the lower side of the dust bin 200. That is, the suction motor 140 and the battery 161 may be disposed not to overlap each other in the front-rear direction, and their heights may also be disposed differently. Based on the handle 150, the heavy suction motor 140 may be disposed above the handle 150, and the light battery 161 may be disposed under the handle 150, and thus the weight of the cleaner 1 may be entirely distributed evenly. Therefore, when the user performs cleaning using the handle 150, it is possible to prevent strain on the user's wrist.

[0114] According to an embodiment, when the battery 161 is coupled to the battery housing 160, the lower surface of the battery 161 may be exposed to the outside. Since the battery 161 may be placed on the floor when the cleaner 1 is placed on the floor, the battery 161 may be immediately separated from the battery housing 160. In addition, since the lower surface of the battery 161 is exposed to the outside and is in direct contact with the external air of the battery 161, it is possible to improve the cooling performance of the battery 161.

[0115] Meanwhile, when the battery 161 is integrally fixed to the battery housing 160, the structure for attaching and detaching the battery 161 and the battery housing 160 can be reduced, and thus it is possible to reduce the overall size of the cleaner 1 and achieve lightweight.

[0116] The cleaner 1 may include the extension pipe (not shown). The extension pipe (not shown) may communicate with a cleaning module (not shown). The extension pipe (not shown) may communicate with the main body 100. The extension pipe (not shown) may communicate with the suction part 120 of the main body 100. The extension pipe (not shown) may be formed in a long cylindrical shape.

[0117] The main body 100 may be connected to the extension pipe (not shown). The main body 100 may be connected to the cleaning module through the extension pipe (not shown). The main body 100 may generate the suction force through the suction motor 140 and provide the suction force to the cleaning module through the extension pipe (not shown). External dust may flow into the main body 100 through the cleaning module and the extension pipe (not shown).

[0118] The cleaner 1 may include the cleaning module (not shown). The cleaning module (not shown) may communicate with the extension pipe (not shown). Therefore, external air may pass through the cleaning module (not shown) and the extension pipe (not shown) and flow into the main body 100 of the cleaner 1 by the suction force generated from the main body 100 of the cleaner 1.

[0119] The cleaner 1 may include the first filter unit 300. The first filter unit 300 may filter the air discharged from the first cyclone part 130. The first filter unit 300 may guide air from which dust has been separated while passing through the first cyclone part 130 to the second cyclone unit 400.

[0120] The first filter unit 300 may include the cases 310 and 1310 and the first filter 320.

[0121] The cases 310 and 1310 may be disposed inside the dust bin 200. The cases 310 and 1310 may be disposed inside the first cyclone part 130.

[0122] A space may be formed inside the cases 310 and 1310. The second cyclone part 400 may be disposed inside the cases 310 and 1310.

[0123] The cases 310 and 1310 are not limited, but may be formed in a cylindrical shape.

[0124] The case central axis a4 may extend in the vertical direction. The case central axis a4 may extend in the longitudinal directions of the cases 310 and 1310.

[0125] As an example, the case central axis a4 may be formed coaxially with the axis a3 of the cyclonic flow generated from the first cyclone part 130. As another example, the case central axis a4 may be formed parallel to the axis a3 of the cyclonic flow generated from the first cyclone part 130. As still another example, the central axis a4 of the cases 310 and 1310 may be formed coaxially with the suction motor axis line a1.

[0126] The first filter 320 may filter dust from the air discharged from the first cyclone part 130.

[0127] The first filter 320 may have a plurality of holes having a predetermined diameter. Therefore, large foreign substances contained in the air discharged from the first cyclone part 130 may be filtered by the first filter 320.

[0128] The first filter 320 may be disposed in the cases 310 and 1310. Alternatively, the first filter 320 may be portions of the cases 310 and 1310. Alternatively, a lower edge of the first filter 320 may be coupled to the cases 310 and 1310.

[0129] Air passing through the first filter 320 may flow into the second cyclone part 400 disposed inside the cases 310 and 1310.

[0130] In this case, outsides and / or outer portions of the cases 310 and 1310 may refer to a direction facing the first cyclone part 130 with respect to the cases 310 and 1310, and insides and / or inner portions of the cases 310 and 1310 may refer to a direction facing the second cyclone part 400 with respect to the cases 310 and 1310.

[0131] The cleaner according to the embodiment of the present invention may include the second cyclone part 400.

[0132] At least a portion of the second cyclone part 400 may be disposed inside the first cyclone part 130 and may separate dust from the air discharged from the first cyclone part 130. After dust is separated from the air by the first cyclone part 130, the air discharged from the first cyclone part 130 may flow into the second cyclone part 400 along a flow path.

[0133] The second cyclone part 400 may be composed of a set of axial flow cyclones formed to separate dust from air introduced in the axial direction.

[0134] The second cyclone part 400 may include a cyclone body 410, a vortex finder 420, and a band member 430.

[0135] The cyclone body 410 is a configuration that adopts the principle of a dust collector that uses a centrifugal force to separate dust from the air passing through the first filter unit 300. Specifically, the cyclone body 410 may separate dust from the air passing through the first filter 320 using the cyclonic flow. Since a space in which air may flow may be formed inside the cyclone body 410, the air passing through the first filter 320 may flow into the cyclone body 410.

[0136] The cyclone body 410 may be disposed inside the cases 310 and 1310. Specifically, at least a portion of the cyclone body 410 may be disposed inside the cases 310 and 1310, and the air passing through the first filter 320 may flow into the cyclone body 410.

[0137] A plurality of cyclone bodies 410 may be provided. An inlet forming an outer wall of a circumference of a hollow may be formed on each cyclone body 410. The outer walls of the circumference of the hollow formed by the cyclone body 410 may correspond to outer walls of the axial flow cyclones. The air discharged from the first cyclone part 130 may flow into the cyclone body 410 through the inlet. Air circulating along an inner circumferential surface of the cyclone body 410 may form a cyclonic flow.

[0138] Dust that is heavier than air may rotate in a swirling flow with a radius of rotation larger than that of air. Since the dust rotates inside the cyclone body 410, a maximum rotation radius of the dust can be defined by the cyclone body 410.

[0139] A lower portion of the cyclone body 410 may have an inclined shape that narrows downward. The reason why the lower portion of the cyclone body 410 has a shape that narrows downward is to guide dust separated from the air to fall and prevent the dust from being discharged into the vortex finder 420 along the air.

[0140] An outlet may be formed on the lower portion of the cyclone body 410. That is, dust separated from the air inside the cyclone body 410 may be discharged from the cyclone body 410 through the outlet. In addition, the lower portion of the cyclone body 410 may communicate with internal spaces of the storage members 311 and 1311. Therefore, dust rotating along the swirling flow inside the cyclone body 410 may fall and may be stored in the storage members 311 and 1311. The dust stored in the storage members 311 and 1311 may communicate with an external space when the discharge cover 220 is opened.

[0141] An upper portion of the cyclone body 410 may be formed to accommodate the vortex finder 420. The upper portion of the cyclone body 410 may be formed to have a constant inner diameter. The upper and lower portions of the cyclone body 410 may be divided based on a location at which the inner diameter narrows.

[0142] The outer circumferential surface of each cyclone body 410 may be connected in contact with the nearby cyclone body 410 to allow the plurality of cyclone bodies 410 to form one member. A cross section of each cyclone body 410 preferably has a circular shape as shown in the drawing. This is because, when the cross-section of the cyclone body 410 is formed in a circular shape, a flow path of air and dust may be formed between the outer circumferential surfaces of adjacent cyclone bodies 410 even when they are in close contact with each other. When the flow path of air and dust is formed between the cyclone bodies 410, there is an advantage in that a separate flow path structure does not need to be installed.

[0143] The cross section of each cyclone body 410 is not excluded from being formed in a polygonal shape. However, even when the cross section of each cyclone body 410 is formed in a polygonal shape, the cross section of the each cyclone body 213ba is preferably formed in a polygonal shape so that the flow path of air and dust may be formed.

[0144] The vortex finder 420 is a component for discharging air passing through the cyclonic flow inside the cyclone body 410.

[0145] A flow path through which air may flow may be formed inside the vortex finder 420. A plurality of vortex finders 420 may be provided, and at least a portion of each vortex finder 420 may be disposed inside each cyclone body 410. A outer circumferential surface of each vortex finder 420 may be spaced apart from the inner circumferential surface of each cyclone body 410. Each vortex finder 420 may have the inlet forming the outer wall of the circumference of the hollow, and the air passing through the cyclone body 410 may be discharged through the inlet of each vortex finder 420. In addition, the air flowing into the inlet of the vortex finder 420 may flow upward and may be discharged through the outlet of the vortex finder 420.

[0146] A lower portion of the vortex finder 420 may have a greater height than the band member 430. However, an upper portion of the vortex finder 420 may have the same height as the band member 430. A lower end of the vortex finder 420 may protrude downward from the band member 430, but an upper end thereof may not be the case.

[0147] A cross section of each vortex finder 420 preferably has a circular ring shape. The cross section of each vortex finder 420 is not excluded from being formed in a polygonal shape. However, even when the cross section of each vortex finder 420 is formed in a polygonal shape, the cross section of each vortex finder 420 is preferably formed in a polygonal shape so that the flow path of air and dust may be formed.

[0148] The band member 430 may be formed to surround the outer circumferential surface of the vortex finder 420. In this case, the band member 430 may be named differently as needed. For example, names such as a ring portion, a ring portion, an edge portion, a perimeter portion, a circle portion, a support portion, a connection portion, an outer portion, a cyclone boundary portion, and an outer wall portion may be considered, and other names are also possible.

[0149] The band member 430 may be seated on the filter body 320 and may have a shape corresponding to the upper portion of the first filter 320. An upper edge of the first filter 320 may be formed in a circular shape, and the band member 430 may also be formed in a circular shape surrounding the vortex finder 420. However, the upper portion of the first filter 320 and the band member 430 are not excluded from being formed in a polygonal shape.

[0150] A guide vane (not shown) is a component for guiding the air discharged from the first cyclone part 130 to the inside of the cyclone body 410. The guide vane (not shown) may form a flow path through which the introduced through the inlet may flow into the cyclone body 410. Therefore, that is, the air flowing along the flow path formed by the guide vane (not shown) may form a swirling flow between the vortex finder 420 and the cyclone body 410.

[0151] At least a portion of the guide vane (not shown) may be disposed between the cyclone body 410 and the vortex finder 420 and connected to each cyclone body 410 and each vortex finder 420. One side of the guide vane (not shown) may be connected to an outer surface of the vortex finder 420 in a spiral direction, and the other side of the guide vane (not shown) may be connected to an inner surface of the cyclone body 410 in the spiral direction.

[0152] A plurality of guide vanes (not shown) may be provided on each cyclone body 410 and each vortex finder 420, and the guide vanes (not shown) may extend in the spiral direction to generate a swirling flow. As the guide vane (not shown) extends in the spiral direction, the air and dust flowing into the inlet of the cyclone body 410 may form a swirling flow.

[0153] Hereinafter, a flow of the air flowing through the flow path of the cleaner 1 according to the embodiment of the present invention will be described.

[0154] First, when the suction motor 140 operates, external air may flow into the dust bin 200 through the suction part 120.

[0155] The air from which dust has been separated by the first cyclone part 130 inside the dust bin 200 may flow into the cyclone body 410 after passing through the first filter 320. The air flowing into the cyclone body 410 may fall while forming the swirling flow, then flow upward, and pass through the vortex finder 420. Dust may be filtered from the air passing through the vortex finder 420 by the second filter 500. The air from which dust has been filtered by the second filter 500 may flow toward the suction motor 140 disposed at a downstream of the suction airflow. Air passing through the suction motor 140 may be discharged to the outside through the air outlet 110a.

[0156] Meanwhile, the cleaner 1 according to the first embodiment of the present invention may include the main body 100, the suction part 120, the first filter 320, the second filter 500, and a cleaning unit 600.

[0157] At least a portion of the first filter 320 may be disposed inside the dust bin 200 and may filter dust from the air introduced through the suction part 120. The first filter 320 may be disposed to surround the second cyclone part 400. For example, the first filter 320 may be a mesh filter. In addition, when the suction motor 140 is driven, the suction airflow may pass from the outside to the inside of the first filter 320.

[0158] The second filter 500 may filter dust from the air passing through the first filter 320. For example, the second filter 500 may be a pre filter. In addition, the second filter 500 may be formed in a shape similar to a cylinder with an open interior. In addition, when the suction motor 140 is driven, the suction airflow may pass from the outside to the inside of the second filter 500.

[0159] The first filter 320 and the second filter 500 may be disposed in the vertical direction along the dust bin central axis a2. In addition, the longitudinal axis of the first filter 320 and the longitudinal axis of the second filter 500 may be formed coaxially, and the longitudinal axes of the first filter 320 and the second filter 500 may be collectively referred to as a longitudinal axis a5 of the filter.

[0160] In this case, the dust bin central axis a2 and the longitudinal axis a5 of the filter may be formed coaxially.

[0161] First dust that is dust filtered by the first filter 320 may accumulate on a first filter surface. The first filter surface may be an outer surface of the first filter 320. Specifically, the first filter surface may be a surface of the first filter 320 facing an inner surface of the dust bin main body 210.

[0162] Second dust that is dust filtered by the second filter 500 may accumulate on a second filter surface. The second filter surface may be an outer surface of the second filter 500. Specifically, the second filter surface may be a surface of the second filter 500 facing an inner surface of the filter housing 180.

[0163] The cleaning unit 600 may be disposed to move with respect to the first filter 320 and the second filter 500.

[0164] The cleaning unit 600 may sweep the first dust and the second dust from the first filter surface and the second filter surface, respectively.

[0165] The virtual suction motor axis line a1 extending the rotational axis of the suction motor 140 may intersect the longitudinal axis of the dust bin (dust bin central axis a2). Therefore, the suction motor axis line a1 may also intersect the longitudinal axis a5 of the filter.

[0166] The suction part 120 and the suction motor 140 may be disposed at opposite sides of the dust bin with respect to the longitudinal axis of the dust bin (dust bin central axis a2). With this structure, since the overall center of gravity of the cleaner is disposed as close as possible to the handle 150 gripped by the user, the user may move the cleaner 1 using a minimal force.

[0167] The main body 100 may further include the filter housing 180.

[0168] An accommodation space 180a in which the second filter 500 is accommodated may be formed inside the filter housing 180. In addition, the dust bin 200 may be detachably coupled to the filter housing 180.

[0169] The filter housing 180 and the dust bin 200 may be disposed vertically along the dust bin central axis a2 or the longitudinal axis a5 of the filter.

[0170] A filter entrance part 180b through which the second filter 500 may enter and exit may be formed at an upper side of the filter housing 180. Therefore, the user may take the second filter 500 out through the filter entrance part 180b.

[0171] The filter entrance part 180b may be opened and closed through a filter entrance cover 190. The filter entrance cover 190 may be hinge-coupled to the filter housing 180, and the filter entrance part 180b may be opened to take out the second filter 500.

[0172] The cleaning unit 600 may include a first movable part 610, a second movable part 620, a connection part 630, a manipulation housing 640, a guide member 650, a manipulation lever 660, and an elastic member 670.

[0173] The first movable part 610 may move along a space between the first filter surface and the inner surface of the dust bin 200 in the dust bin 200.

[0174] A first brush 611 composed of a plurality of bristles may be disposed inside the first movable part 610. When the first movable part 610 moves along the dust bin central axis a2, the first brush 611 may sweep dust accumulated on the first filter surface.

[0175] The second movable part 620 may move along a space between the second filter surface and the inner surface of the filter housing 180 in the filter housing 180.

[0176] A second brush 621 composed of a plurality of bristles may be disposed inside the second movable part 620. When the second movable part 620 moves along the dust bin central axis a2, the second brush 621 may sweep dust accumulated on the second filter surface.

[0177] The connection part 630 may include the first movable part 610 to the second movable part 620.

[0178] Therefore, when the manipulation lever 660 is moved, the first movable part 610 and the second movable part 620 may be moved integrally.

[0179] The connection part 630 may pass through the filter housing 180. Specifically, a moving hole (not shown) through which the connection part 630 may move may be formed in the filter housing 180 to pass through the filter housing 180, and the connection part 630 may move in a direction parallel to the dust bin central axis a2 through the moving hole (not shown).

[0180] Therefore, a portion of the connection part 630 may be disposed in the space between the first filter surface and the dust bin 200, and the remaining portion of the connection part 630 may be disposed in the space between the second filter surface and the inner surface of the filter housing 180.

[0181] The connection part 630 may include a first connection member 631 and a second connection member 632.

[0182] One side of the first connection member 631 may be movably coupled to the guide member 650, and the other side may be fixed to the first movable part 610.

[0183] Meanwhile, the elastic member 670 may be disposed at both sides of the first connection member 631 coupled to the guide member 650.

[0184] The elastic member 670 is a component that may be disposed to surround the guide member 650 to be described below and may generate a restoring force in a direction opposite to a direction in which the manipulation lever 660 is moved when the user moves the manipulation lever 660.

[0185] The elastic member 670 may include a first elastic member 671 and a second elastic member 672.

[0186] The first elastic member 671 may be disposed at one side of the first connection member 631, and the second elastic member 672 may be disposed at the other side. One side of the first elastic member 671 may be connected to the manipulation lever 660 and the guide member 650, and the other side may be connected to the first connection member 631. One side of the second elastic member 672 may be connected to the first connection member 631, and the other side may be connected to the guide member 650.

[0187] In addition, one side of the second connection member 632 may be fixed to the first movable part 610, and the other side may be fixed to the second movable part 620.

[0188] Therefore, when the manipulation lever 660 is moved to compress the elastic member 670, the first connection member 631 may be moved along the guide member 650. In addition, the first movable part 610 connected to the first connection member 631 and the second movable part 620 connected to the second connection member 632 may also be moved.

[0189] The manipulation housing 640 may be coupled to the outsides of the main body 100 and the dust bin 200. The guide member 650 may be accommodated inside the manipulation housing 640.

[0190] An internal space of the manipulation housing 640 may communicate with the internal space of the dust bin 200. A moving slit (not shown) corresponding to the longitudinal direction of the manipulation housing 640 may be formed in the dust bin 200, and the connection part 630 may be connected to the guide member 650 in a state of passing through the moving slit (not shown).

[0191] The guide member 650 may extend in moving directions of the first movable part 610 and the second movable part 620 in the manipulation housing 640.

[0192] The manipulation lever 660 may slidably move along the guide member 650, and at least a portion thereof may be exposed to the outside so that the user may grip the same.

[0193] The filter entrance part 180b may be opened in a direction in which the elastic member 670 is elastically restored.

[0194] Assuming that the direction in which the elastic member 670 is compressed is referred to as a first direction and the direction in which the elastic member 670 is elastically restored is referred to as a second direction, when the user moves the manipulation lever 660 in the first direction and then releases the manipulation lever 660, the second brush 621 may move the second filter 500 toward the filter entrance part 180b while moving in the second direction. Therefore, in a state in which the filter entrance part 180b is opened, at least a portion of the second filter 500 moved by the second brush 621 may be exposed to the outside through the filter entrance part 180b.

[0195] Meanwhile, referring to FIG. 6, in the cleaner 1 according to the first embodiment of the present invention, four quadrants partitioned by a horizontal center line HL1 and a vertical center line VL1 can be defined.

[0196] Based on when viewing the discharge cover 220 from the filter entrance cover 190, the horizontal center line HL1 may intersect the center of the dust bin main body 210 in the horizontal direction and pass through an outer circumferential surface of the dust bin main body 210. In this case, the horizontal direction may be a direction perpendicularly intersecting the longitudinal axis of the suction part 120.

[0197] The vertical center line VL1 may perpendicularly intersect the horizontal center line HL1, perpendicularly intersect the center of the dust bin main body 210, and extend parallel to the longitudinal direction of the suction part 120.

[0198] The connection part 630 and the guide member 650 may be disposed in the same quadrant among the four quadrants partitioned by the horizontal center line HL1 and the vertical center line VL1.

[0199] With this structure, since the connection part 630 and the guide member 650 may be disposed as close as possible, it is possible to minimize the distance between the manipulation lever 660 and the cleaning unit 600 in a state in which the user grips the manipulation lever 660. Therefore, to clean dust accumulated in the first filter 320 and / or the second filter 500 by moving the cleaning unit 600, the user may move the manipulation lever 660 using a minimal force.

[0200] FIG. 7 is a perspective view of a cleaner according to a second embodiment of the present invention, FIG. 8A is a cross-sectional view of the cleaner according to the second embodiment of the present invention, FIG. 8B is a cross-sectional view showing a state in which the cleaning unit in FIG. 8A has been moved down, FIG. 9 is an exploded view of the cleaner according to the second embodiment of the present invention, FIG. 10 is a perspective view of a filter housing according to the second embodiment of the present invention, FIG. 11 is a plan view of the filter housing according to the second embodiment of the present invention, FIG. 12 is a cross-sectional view along line 1-1 in FIG. 11, and FIG. 13 is a view for describing the arrangement relationship between a connection part and a guide member according to the second embodiment of the present invention.

[0201] A cleaner 2 according to the second embodiment of the present invention will be described with reference to FIGS. 7 to 13 as follows.

[0202] Meanwhile, the cleaner 2 according to the second embodiment of the present invention may include the main body 100, the suction part 120, the first filter 1320, a second filter 1500, and a cleaning unit 1600.

[0203] Meanwhile, to avoid overlapping description, the contents of the cleaner according to the first embodiment of the present invention may be used for other configurations, except for those specifically stated in the second embodiment of the present invention.

[0204] At least a portion of the first filter 1320 may be disposed inside the dust bin 200 and may filter dust from the air introduced through the suction part 120. The first filter 1320 may be disposed to surround the second cyclone part 400. For example, the first filter 1320 may be a mesh filter. In addition, when the suction motor 140 is driven, the suction airflow may pass from the outside to the inside of the first filter 1320.

[0205] The second filter 500 may filter dust from the air passing through the first filter 1320. For example, the second filter 1500 may be an open pre filter. In addition, the second filter 1500 may be formed in a shape similar to a cylinder with an open interior. In addition, when the suction motor 140 is driven, the suction airflow may pass from the outside to the inside of the second filter 1500.

[0206] At least a portion of the second filter 1500 may be formed inside the first filter 1320.

[0207] The cleaner 2 according to the second embodiment of the present invention has an advantage in that since the second filter 1500 is disposed inside the first filter 1320, the miniaturization of the cleaner 2 is realized.

[0208] The first filter 1320 and the second filter 1500 may be formed coaxially, and longitudinal axes of the first filter 1320 and the second filter 1500 may be collectively referred to as a longitudinal axis a6 of the filter.

[0209] In this case, the suction motor axis line extending the rotational axis of the suction motor 140, the dust bin central axis a2, an axis a3 of the cyclonic flow, the case central axis a4, and the longitudinal axis a6 of the filter may be formed coaxially.

[0210] First dust that is dust filtered by the first filter 1320 may accumulate on a first filter surface. The first filter surface may be an outer surface of the first filter 1320. Specifically, the first filter surface may be a surface of the first filter 1320 facing an inner surface of the dust bin main body 210.

[0211] Second dust that is dust filtered by the second filter 1500 may accumulate on a second filter surface. The second filter surface may be an outer surface of the second filter 1500. Specifically, the second filter surface may be a surface of the second filter 1500 facing an inner surface of the filter housing 1180.

[0212] The cleaning unit 1600 may be disposed to move with respect to the first filter 1320 and the second filter 1500.

[0213] The cleaning unit 1600 may sweep the first dust and the second dust from the first filter surface and the second filter surface, respectively.

[0214] The cleaner 2 according to the second embodiment of the present invention may further include a filter housing 1180.

[0215] An accommodation space 1180a in which the second filter 1500 may be accommodated may be formed inside the filter housing 1180. The filter housing 1180 may be detachably coupled to the main body housing 110. At least a portion of the filter housing 1180 may be disposed inside the dust bin 200. The filter housing 1180 may be formed in a cylindrical shape with an open interior.

[0216] Referring to FIG. 10, the first filter 1320 may be disposed to surround at least a portion of the filter housing 1180.

[0217] The second cyclone part 400 may be disposed inside the filter housing 1180. Specifically, a plurality of cyclone bodies 410 may be disposed inside the filter housing 180 and disposed to surround the second filter 1500 around the second filter 1500.

[0218] The cleaning unit 600 may include a first movable part 1610, a second movable part 1620, a connection part 1630, a manipulation housing 1640, a guide member 1650, a manipulation lever 1660, and an elastic member (not shown).

[0219] The first movable part 1610 may move along a space between the first filter surface and the inner surface of the dust bin 200 in the dust bin 200.

[0220] The first brush 611 composed of the plurality of bristles may be disposed inside the first movable part 1610. When the first movable part 1610 moves along the dust bin central axis a2, the first brush 1611 may sweep dust accumulated on the first filter surface.

[0221] The second movable part 1620 may move along a space between the second filter surface and the inner surface of the filter housing 1180 in the filter housing 1180.

[0222] The second brush 1621 composed of the plurality of bristles may be disposed inside the second movable part 1620. When the second movable part 1620 moves along the dust bin central axis a2, the second brush 1621 may sweep dust accumulated on the second filter surface.

[0223] The connection part 1630 may include the first movable part 1610 to the second movable part 1620.

[0224] The connection part 1630 may pass through the filter housing 1180. Specifically, a moving hole (not shown) through which the connection part 1630 may move may be formed in the filter housing 1180 to pass through the filter housing 180, and the connection part 1630 may move in a direction parallel to the dust bin central axis a2 through the moving hole (not shown).

[0225] Therefore, a portion of the connection part 1630 may be disposed in the space between the filter housing 1180 and the dust bin 200, and the remaining portion of the connection part 1630 may be disposed in the space between the second filter surface and the inner surface of the filter housing 1180.

[0226] The elastic member (not shown) is a component that may be disposed to surround the guide member 1650 to be described below and may generate a restoring force in a direction opposite to a direction in which the manipulation lever 1660 is moved when the user moves the manipulation lever 1660.

[0227] One side of the elastic member (not shown) may be connected to the manipulation lever 1660, and the other side may be connected to the connection part 1630. Therefore, when the manipulation lever 1660 is moved to compress the elastic member (not shown), the first movable part 1610, the second movable part 1620, and the connection part 1630 may be moved along the longitudinal direction of the guide member 1650.

[0228] The manipulation housing 1640 may be coupled to the outsides of the main body 100 and the dust bin 200. The guide member 1650 may be accommodated inside the manipulation housing 1640.

[0229] An internal space of the manipulation housing 1640 may communicate with the internal space of the dust bin 200. A moving slit (not shown) corresponding to the longitudinal direction of the manipulation housing 1640 may be formed in the dust bin 200, and the connection part 1630 may be connected to the guide member 1650 in a state of passing through the moving slit (not shown).

[0230] The guide member 1650 may extend in moving directions of the first movable part 1610 and the second movable part 1620 in the manipulation housing 1640.

[0231] The manipulation lever 1660 may slidably move along the guide member 1650, and at least a portion thereof may be exposed to the outside so that the user may grip the same.

[0232] Meanwhile, referring to FIG. 13, in the cleaner 2 according to the second embodiment of the present invention, four quadrants partitioned by a horizontal center line HL2 and a vertical center line VL2 can be defined.

[0233] Based on when viewing the discharge cover 220 from an air discharge cover 111 to be described below, the horizontal center line HL2 may intersect the center of the dust bin main body 210 in the horizontal direction and pass through the outer circumferential surface of the dust bin main body 210. In this case, the horizontal direction may be a direction perpendicular to the longitudinal axis of the suction part 120.

[0234] The vertical center line VL2 may perpendicularly intersect the horizontal center line HL2, perpendicularly intersect the center of the dust bin main body 210, and extend parallel to the longitudinal direction of the suction part 120.

[0235] The connection part 1630 and the guide member 1650 may be disposed in the same quadrant among the four quadrants partitioned by the horizontal center line HL2 and the vertical center line VL2.

[0236] With this structure, since the connection part 1630 and the guide member 1650 may be disposed as close as possible, it is possible to minimize the distance between the manipulation lever 1660 and the cleaning unit 1600 in a state in which the user grips the manipulation lever 1660. Therefore, to clean dust accumulated in the first filter 1320 and / or the second filter 1500 by moving the cleaning unit 1600, the user may move the manipulation lever 1660 using a minimal force.

[0237] Meanwhile, the cleaner 2 according to the second embodiment of the present invention may include the air discharge cover 111. The air discharge cover 111 may be disposed at one side of the main body housing 110 in the axial direction. The air discharge cover 111 may accommodate a filter for filtering air. For example, the air discharge cover 111 may accommodate a HEPA filter.

[0238] An air outlet 112 through which the air suctioned by the suction force of the suction motor 140 is discharged may be formed on the air discharge cover 111.

[0239] A flow guide may be disposed on the air discharge cover 111. The flow guide may guide a flow of the air discharged through the air outlet 112.

[0240] Meanwhile, the cleaners 1 and 2 according to the embodiments of the present invention may be coupled to a cleaner station provided with a dust collection motor for generating a suction airflow and a dust collection part for collecting dust stored in the dust bins 200 of the cleaners 1 and 2. In this case, in a state in which the internal space of the dust bin 200 and the dust collection part are communicated through a separate flow path, when the suction airflow of the dust collection motor is generated, the dust stored in the dust bins 200 of the cleaners 1 and 2 may be transferred to the dust collection part.

[0241] Therefore, when the cleaners 1 and 2 according to the embodiments of the present invention are coupled to the cleaner station and the dust collection motor is driven in a state in which the discharge cover 220 is opened, the dust of the first filters 320 and 1320 and the second filters 500 and 1500 swept by the cleaning units 600 and 1600 may be collected in the dust collection part.

[0242] As described above, according to the cleaner according to the present invention, it is possible to remove the dust accumulated in at least one filter with the simple operation of the user pushing or pulling the manipulation lever.

[0243] In addition, according to the present invention, it is possible to improve the filtration performance of the filter and the suction performance by the suction motor by directly sweeping the surface on which dust accumulates of the outer and inner surfaces of each filter.

[0244] In addition, according to the present invention, it is possible to minimize the user's force moving the manipulation lever by minimizing the distance between the cleaning unit for removing dust accumulated in the first filter and the second filter and the manipulation lever for moving the cleaning unit.

[0245] In addition, according to the present invention, the user can move the cleaner with the minimal force by arranging the overall center of gravity of the cleaner as close as possible to the handle gripped by the user.

[0246] In addition, according to the present invention, it is possible to minimize the overall size of the cleaner by arranging the first filter outside the second cyclone part and the second filter inside the second cyclone part.

[0247] Although the present invention has been described in detail through specific embodiments, this is intended to specifically describe the present invention, and it is apparent that the present invention is not limited thereto, and the present invention can be modified or improved by those skilled in the art without departing from the technical spirit of the present invention.

[0248] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of the present invention will be made clear by the appended claims.DESCRIPTION OF REFERENCE NUMERALS

[0249] 1:cleaner100:main body110:main body housing110a:air outlet120:suction part130:first cyclone part140:suction motor150:handle160:battery housing161:battery170:manipulation part180:filter housing180a:accommodation space180b:filter entrance part190:filter entrance cover200:dust bin210:dust bin main body220:discharge cover221:cover main body222:hinge part300:first filter unit310:case311:storage member311a:first dust storage part311b:second dust storage part320:first filter400:second cyclone part410:cyclone body420:vortex finder430:band member500:second filter600:cleaning unit610:first movable part611:first brush620:second movable part621:second brush630:connection part631:first connection member632:second connection member640:manipulation housing650:guide member660:manipulation lever670:elastic member

Claims

1. A cleaner comprising: a main body including a dust bin in which dust is stored; a suction part configured to guide air to an inside of the dust bin; a first filter having at least a portion disposed inside the dust bin and filtering dust from air introduced through the suction part; a second filter configured to filter dust from air passing through the first filter; and a cleaning unit movably disposed with respect to the first filter and the second filter, wherein the first filter includes a first filter surface on which first dust that is dust filtered by the first filter is accumulated, the second filter includes a second filter surface on which second dust that is dust filtered by the second filter is accumulated, and the cleaning unit sweeps the first dust and the second dust from the first filter surface and the second filter surface, respectively.

2. The cleaner of claim 1, further comprising a suction motor configured to generate a suction airflow so that air is suctioned through the suction part, wherein a virtual suction motor axis line extending a rotational axis of the suction motor intersects a longitudinal axis of the dust bin.

3. The cleaner of claim 2, wherein the suction part and the suction motor are disposed at opposite sides with respect to the longitudinal axis of the dust bin.

4. The cleaner of claim 2, wherein the main body further includes a filter housing which is detachably coupled to the dust bin and in which the second filter is accommodated.

5. The cleaner of claim 4, wherein a filter entrance part through which the filter enters and exits is formed at one side of the filter housing.

6. The cleaner of claim 5, wherein the cleaning unit includes: a first movable part configured to move along a space between the first filter surface and an inner surface of the dust bin in the dust bin; a second movable part configured to move along a space between the second filter surface and an inner surface of the filter housing in the filter housing; and a connection part passing through the filter housing and connecting the first movable part to the second movable part.

7. The cleaner of claim 6, wherein the cleaning unit further includes: a manipulation housing coupled to the main body; a guide member extending in moving directions of the first movable part and the second movable part inside the manipulation housing; a manipulation lever moved along the guide member and having at least a portion exposed to the outside; and an elastic member disposed on the guide member and having one side connected to the manipulation lever and the other side connected to the connection part.

8. The cleaner of claim 7, wherein the filter entrance part is opened in a direction in which the elastic member is elastically restored.

9. The cleaner of claim 7, wherein the connection part and the guide member are disposed in the same quadrant of four quadrants partitioned by a horizontal center line intersecting the center of the dust bin and a vertical center line intersecting the center of the dust bin.

10. The cleaner of claim 1, wherein at least a portion of the second filter is disposed inside the first filter.

11. The cleaner of claim 10, wherein the first filter and the second filter are formed coaxially.

12. The cleaner of claim 10, wherein the main body further includes a filter housing which is disposed inside the dust bin and in which at least a portion of the second filter is accommodated.

13. The cleaner of claim 12, further comprising a plurality of cyclone bodies disposed inside the filter housing and disposed to surround the second filter about the second filter.

14. The cleaner of claim 12, wherein the cleaning unit includes: a first movable part configured to move along a space between the first filter surface and an inner surface of the dust bin in the dust bin; a second movable part configured to move along a space between the second filter surface and an inner surface of the filter housing in the filter housing; and a connection part passing through the filter housing and connecting the first movable part to the second movable part.

15. The cleaner of claim 14, wherein the cleaning unit includes: a manipulation housing coupled to the main body; a guide member extending in moving directions of the first movable part and the second movable part inside the manipulation housing; a manipulation lever moved along the guide member and having at least a portion exposed to the outside; and an elastic member disposed on the guide member and having one side connected to the manipulation lever and the other side connected to the connection part.

16. The cleaner of claim 15, wherein the connection part and the guide member are disposed in the same quadrant of four quadrants partitioned by a horizontal center line intersecting the center of the dust bin and a vertical center line intersecting the center of the dust bin.

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