Filter for cleaner

Abstract

The present invention relates to a filter for a cleaner. When a dust-collecting motor in a cleaner station is operated, a turbine unit is rotated by a suction force of the dust-collecting motor, and a brush in contact with the filter can sweep away foreign substances in the filter while rotating relative to the filter in conjunction with the rotation of a turbine.

Description

vacuum cleaner filter

[0001] The present invention relates to a filter for a vacuum cleaner, and more specifically, to a filter for a vacuum cleaner that prevents foreign matter from entering a suction motor that generates suction power.

[0002]

[0003] Generally, a vacuum cleaner is a home appliance that uses electricity to suck up air to collect small debris or dust and fill it into a dust bin inside the product, and it is commonly referred to as a vacuum cleaner.

[0004] These vacuum cleaners can be classified into manual vacuum cleaners, which are used for cleaning by moving the vacuum cleaner directly, and automatic vacuum cleaners, which are used for cleaning by driving on their own. Manual vacuum cleaners can be classified into canister-type vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, and stick-type vacuum cleaners, depending on the form of the vacuum cleaner.

[0005] In the past, canister-type vacuum cleaners were widely used for household use, but recently, handheld and stick vacuum cleaners, which offer improved convenience by providing the dust bin and the main body as a single unit, are becoming more popular.

[0006] Canister-type vacuum cleaners have the main body and the suction nozzle connected by a rubber hose or pipe, and depending on the case, a brush can be attached to the nozzle for use.

[0007] Hand vacuum cleaners maximize portability; however, because they are lightweight but short, the cleaning area may be limited while sitting. Therefore, they are used to clean localized areas such as desks, sofas, or inside cars.

[0008] Stick vacuums can be used while standing, allowing for cleaning without bending over. This makes them advantageous for cleaning large areas. While handheld vacuums are used for cleaning narrow spaces, stick vacuums can clean larger areas and reach high places that are out of reach. Recently, stick vacuums are also being offered in modular types, allowing users to actively switch between different types of vacuums for various tasks.

[0009] Meanwhile, the suction motor is located within the motor housing of the vacuum cleaner body, and a filter is provided upstream of the suction motor to prevent foreign matter from entering the suction motor.

[0010] When a vacuum cleaner is used continuously, dust can accumulate on the filter. This accumulated dust acts as flow resistance in the vacuum cleaner's airflow, which can lead to a decrease in suction performance. Therefore, to minimize the decline in suction performance, it is necessary to periodically clean the filter to remove the accumulated dust.

[0011] In this regard, Korean published patent KR 10-2023-0082593A discloses a vacuum cleaner station that automatically collects dust from the dustbin of a vacuum cleaner.

[0012] In the above vacuum cleaner station, when the dust collection motor that generates suction power to collect dust in the dust bin operates, external air is drawn in through the exhaust port of the vacuum cleaner body and passes through the filter, thereby removing foreign substances remaining on the filter.

[0013] However, as described above, when air is drawn in through the exhaust port of the vacuum cleaner body, there is a limitation in that the amount of air drawn in is insufficient.

[0014] In addition, since the filter is cleaned solely by airflow, there is a limitation in that the efficiency of removing foreign substances attached by static electricity or the like decreases.

[0015] In addition, Korean published patent KR 2023-0089508A discloses a dust collection device for cleaning the dust collection container of a vacuum cleaner.

[0016] A vacuum cleaner is docked to the above dust collection device, and when the dust collection motor is operated, external air flows into the dust collection container, and a rotation guide member provided inside the dust collection container rotates, thereby cleaning the dust collection container.

[0017] The above vacuum cleaner is configured so that a blade placed in the dust bin rotates by air introduced through the vacuum cleaner's suction and exhaust ports.

[0018] However, the above vacuum cleaner has a limitation in that while it is possible to clean the dustbin, it is difficult to clean the pre-filter located above the cyclone. This is because when the motor of the dust collector operates, most of the air is drawn in through the suction section, where there is no air resistance from the filter.

[0019] In addition, International Patent Publication WO 2023-089298A1 discloses a device for separating dust accumulated on a filter.

[0020] The above dust separation device can remove dust accumulated on the filter by shaking it out using a separate structure.

[0021] However, the above dust separation device has the inconvenience of requiring the user to manually brush off the dust.

[0022] Therefore, if the user does not accurately understand the operating method, cleaning the filter may not be performed, and there is a limitation in that dust may continuously remain.

[0023]

[0024] The present invention was created to improve upon the problems described above, and aims to provide a vacuum cleaner filter and a vacuum cleaner that allow a user to clean a filter mounted on the vacuum cleaner without disassembling the vacuum cleaner.

[0025] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner that allow the user to empty the dustbin and clean the filter simultaneously with the simple action of placing the vacuum cleaner on the vacuum cleaner station.

[0026] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner that allow the user to visually recognize that cleaning the filter is in progress.

[0027] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner capable of sweeping away foreign matter accumulated on the filter through direct physical contact.

[0028] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner that allow dust swept from the filter to be emptied directly from the dustbin without scattering or accumulating on the filter.

[0029] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner that can be placed in front of the suction motor and HEPA filter.

[0030] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner that can be placed on the upper side of the cyclone and dustbin.

[0031] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner in which, when the dust collection motor of the vacuum cleaner station is driven, the suction airflow can intensively pass through the surface where dust accumulates on the filter.

[0032] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner capable of sealing the internal space of the vacuum cleaner housing when the dust collection motor is not running.

[0033] In addition, the purpose is to provide a vacuum cleaner filter and a vacuum cleaner that do not cause damage to the filter and the cleaning component even when the filter is cleaned repeatedly.

[0034]

[0035] In order to solve the problem described above, the vacuum cleaner filter according to the present invention, when the dust collection motor of the vacuum cleaner station is operated, the turbine part rotates by the suction force of the dust collection motor, and the brush in contact with the filter rotates relative to the filter in conjunction with the rotation of the turbine, sweeping away foreign matter from the filter.

[0036] Specifically, the filter for a vacuum cleaner according to the present invention comprises: a cylindrical filter portion; a turbine portion that rotates by the flow of air; and a cleaning portion that rotates relative to the filter portion according to the rotation of the turbine portion and contacts the inner surface of the filter portion.

[0037] At this time, the turbine part may be connected to the filter part or the cleaning part and rotated together.

[0038] That is, the turbine section may include a disc-shaped turbine plate; a plurality of blades protruding along the circumferential direction from one side of the turbine plate; and a shaft protruding from the center of the other side of the turbine plate.

[0039] Accordingly, when air flows, the blade is rotated by the flowing air, the turbine plate is rotated with the shaft as the axis of rotation, and the filter part and the cleaning part are rotated relative to each other so that foreign matter accumulated in the filter part can be cleaned.

[0040] Meanwhile, the filter unit may include a filter body for filtering foreign substances; annular frames provided at both ends in the axial direction of the filter body; and a plurality of vertical frames connected to the annular frames and arranged along the circumferential direction.

[0041] At this time, the pair of annular frames may include: an upper annular frame positioned on the upper side of the filter body and coupled to the turbine part; and a lower annular frame positioned on the lower side of the filter body.

[0042] At this time, the outer diameter of the upper annular frame may be larger than the outer diameter of the lower annular frame.

[0043] In addition, the axial thickness of the upper annular frame may be greater than the axial thickness of the lower annular frame.

[0044] Meanwhile, the shaft may be coupled to the cleaning part so as to be movable along the axial direction.

[0045] Specifically, the turbine part further includes a guide pin that guides the axial movement of the shaft; wherein one axial end of the guide pin is inserted into the hollow shaft, and the other axial end can be in contact with the cleaning part.

[0046] In addition, the turbine section may further include a spring disposed between the cleaning section and the shaft to provide a restoring force.

[0047] In addition, the turbine part may be coupled to the cleaning part so as to be movable along the axial direction.

[0048] With this configuration, when the dustbin of the vacuum cleaner is opened, the turbine part moves along the axial direction and can become rotatable by the flow of air.

[0049] On the other hand, when the dust bin is closed, the cleaning unit is pressurized axially toward the turbine unit, and the rotation of the turbine unit can be stopped.

[0050] Meanwhile, the cleaning unit may include: a cleaning unit body formed in an annular shape and configured to rotate relative to the filter unit; a cleaning unit column extending along the axial direction from the cleaning unit body and positioned inside the filter unit; and a brush coupled to the cleaning unit column and positioned along the axial direction of the cleaning unit body to contact the inner surface of the filter unit.

[0051] Therefore, when the turbine unit and the filter unit are rotated, the brush can clean the filter unit.

[0052] Meanwhile, a filter for a vacuum cleaner according to another embodiment of the present invention may further include a filter cover coupled to one side in the axial direction of the filter portion.

[0053] At this time, the filter cover includes a guide vane that guides the flow of the air.

[0054] Meanwhile, the turbine section may include: a turbine plate formed in the shape of a hollow disc; a plurality of blades protruding along the circumferential direction from one side of the turbine plate; a turbine cover coupled to one side of the turbine plate and having a plurality of slits through which the blades pass; and a shaft extending outward from the center of the turbine cover.

[0055] Additionally, the cleaning section may include: a cleaning section column formed to extend along the axial direction from the turbine plate and disposed inside the filter section; and a brush coupled to the cleaning section column and disposed along the axial direction to contact the inner surface of the filter section.

[0056] Therefore, when the turbine part and the brush part are rotated, the brush can clean the filter part.

[0057] Meanwhile, a filter for a vacuum cleaner according to another embodiment of the present invention may further include a plunger that reciprocates the shaft along the axial direction.

[0058] At this time, the plunger can be moved in conjunction with the opening and closing of the dust bin.

[0059] Accordingly, when the dust bin is closed, the plunger pressurizes the shaft, and the turbine cover can move away from the turbine plate. Accordingly, the airflow between the filter cover and the turbine cover can be blocked.

[0060] Meanwhile, when the dust bin is opened, the turbine cover comes into contact with the turbine plate, and a space for air to flow can be formed between the filter cover and the turbine cover.

[0061] At this time, when the dust collection motor is operated, air flows between the filter cover and the turbine cover, and as the turbine cover rotates, the filter part can be cleaned.

[0062] Meanwhile, a filter for a vacuum cleaner according to another embodiment of the present invention may further include a support member on which the other side in the axial direction of the filter part is seated and which rotatably supports the column of the cleaning part.

[0063]

[0064] As explained above, according to the vacuum cleaner of the present invention, when a user places the vacuum cleaner on a vacuum cleaner station, the dust bin of the vacuum cleaner opens, and a passage that can rotate the turbine unit is opened in accordance with the opening of the dust bin of the vacuum cleaner, and at the same time the dust bin is collected by the operation of the dust collection motor, the turbine unit rotates, thereby providing the effect of automatically cleaning the filter with a brush.

[0065] In addition, when dust collection in the dust bin is finished, the dust bin is closed and the passage that can rotate the turbine unit is closed at the same time, so there is an effect of not requiring a separate filter assembly.

[0066] In addition, the turbine unit rotates during the operation of the dust collection motor, and since the rotating turbine unit is visible to the user, there is an effect of allowing the user to visually confirm that the filter unit is being cleaned.

[0067] In addition, since the brush directly sweeps the inner surface of the filter section in conjunction with the rotation of the turbine section, there is an effect of increasing cleaning efficiency.

[0068] In addition, the filter section, turbine section, and cleaning section are formed in a radial or cylindrical shape overall, so that damage can be prevented even if the rotation of the turbine section and cleaning by the cleaning section are repeated.

[0069] In addition, the filter section or cleaning section is fixed to the upper side of the dust separation section, which has the effect of preventing damage.

[0070]

[0071] FIG. 1 is a perspective view of a vacuum cleaner according to one embodiment of the present invention.

[0072] Figure 2 is a cross-sectional view of Figure 1.

[0073] FIGS. 3a and FIGS. 3b are drawings for illustrating a filter for a vacuum cleaner according to an embodiment of the present invention.

[0074] Figure 4 is a cross-sectional view of Figure 3.

[0075] FIG. 5 is a cross-sectional view of a vacuum cleaner according to one embodiment of the present invention with the dust bin in an open state.

[0076] Figure 6 is an enlarged view of the part where the filter is combined in Figure 5.

[0077] FIGS. 7a and 7b are drawings illustrating a situation in which air is introduced into a vacuum cleaner according to an embodiment of the present invention.

[0078] FIG. 8 is a perspective view of a vacuum cleaner station according to one embodiment of the present invention.

[0079] Figure 9 is a cross-sectional view of Figure 8.

[0080] FIG. 10 is a cross-sectional view of a vacuum cleaner according to a second embodiment of the present invention.

[0081] FIG. 11 is a perspective view for explaining a filter section according to a second embodiment of the present invention.

[0082] FIG. 12 is a drawing for explaining the state in which a filter part is coupled to a filter cover in a vacuum cleaner according to a second embodiment of the present invention.

[0083] Fig. 13 is a bottom view of Fig. 12.

[0084] FIG. 14 is a drawing illustrating the state in which the filter cover is open in a vacuum cleaner according to a second embodiment of the present invention.

[0085] FIG. 15 is a cross-sectional view of a vacuum cleaner according to a second embodiment of the present invention with the dust bin in an open state.

[0086] Figure 16 is an enlarged view of the part where the filter is combined in Figure 15.

[0087] FIGS. 17a and FIGS. 17b are drawings for explaining the arrangement of guide vanes of a filter cover and blades of a filter in a vacuum cleaner according to a second embodiment of the present invention.

[0088] FIG. 18 is a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention.

[0089] Figure 19 is an enlarged view of the part where the filter is combined in Figure 18.

[0090] FIG. 20 is a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention with the dust bin in an open state.

[0091] FIG. 21 is a perspective view of a vacuum cleaner according to a fourth embodiment of the present invention.

[0092] Fig. 22 is a cross-sectional view of Fig. 21.

[0093] FIG. 23 is a perspective view of a filter in a vacuum cleaner according to the fifth embodiment of the present invention.

[0094] FIG. 24 is an enlarged view of the part where the filter is attached in a vacuum cleaner according to the fifth embodiment of the present invention.

[0095] FIG. 25 is a perspective view of a cleaning part in a vacuum cleaner according to the 6th embodiment of the present invention.

[0096]

[0097] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0098] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0099] Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and may not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0100]

[0101] FIG. 1 shows a perspective view of a vacuum cleaner according to one embodiment of the present invention, and FIG. 2 shows a cross-sectional view of FIG. 1.

[0102] Referring to FIGS. 1 and FIGS. 2, a vacuum cleaner (1) according to one embodiment of the present invention is described as follows.

[0103] The vacuum cleaner (1) may refer to a vacuum cleaner that is manually operated by the user. For example, the vacuum cleaner (1) may refer to a handheld vacuum cleaner or a stick vacuum cleaner.

[0104] Meanwhile, in one embodiment of the present invention, the direction of the vacuum cleaner (1) can be defined based on when the bottom surface (lower side) of the dust bin (180) is placed on the ground.

[0105] At this time, the front may refer to the direction in which the suction part (120) is positioned relative to the dust bin (180), and the rear may refer to the direction in which the handle (150) is positioned relative to the dust bin (180). Also, when looking at the suction part (120) from the dust bin (180), the direction positioned to the right may be called the right, and the direction positioned to the left may be called the left. Furthermore, in one embodiment of the present invention, the upper and lower sides may be defined along a direction perpendicular to the ground when the bottom surface (lower side) of the dust bin (180) is placed on the ground.

[0106] The vacuum cleaner (1) may include a main body (100). The main body (100) may include a main body housing (110), a suction part (120), a dust separation part (130), a suction motor (140), a handle (150), a motor housing (160), a battery connection part (170), and a dust bin (180).

[0107] The main body housing (110) can form the exterior of the vacuum cleaner (1). For example, the main body housing (110) can be configured in a shape similar to a cylinder. In this case, one side of the outer surface of the main body housing (110) may be connected to the suction part (120), and the other side may be connected to the motor housing (160). A dust bin (180) may be detachably connected to the lower side of the main body housing (110).

[0108] The main body housing (110) may provide a space in which a component can be accommodated. Specifically, the main body housing (110) may provide a space in which at least a portion of the dust separation unit (130) can be accommodated. Additionally, a space for accommodating a filter (200) may be formed inside the main body housing (110).

[0109] Additionally, the main body housing (110) may have a space formed therein through which air can flow. The internal space of the main body housing (110) may form a passageway through which air passing through the dust separation unit (130) can pass through the filter (200) and flow into the internal space of the motor housing (160).

[0110] A filter cover (111) may be provided on the main body housing (110). The filter cover (111) is detachably coupled to the upper side of the main body housing (110) and can cover the upper side of the main body housing (110). For example, the filter cover (111) may be formed in the shape of a hollow disc. That is, an external air inlet hole (112) through which external air can be introduced may be formed at the radial center of the filter cover (111).

[0111] The outside air inlet hole (112) can be opened and closed by at least a part of the filter (200). Specifically, the outside air inlet hole (112) can be opened and closed by the top of the turbine section (220). That is, when the turbine section (220) is lowered, the outside air inlet hole (112) is opened, and when the turbine section (220) is raised, the outside air inlet hole (112) can be closed.

[0112] The suction part (120) may be positioned to protrude from the outer surface of the main body housing (110). The suction part (120) may be provided to communicate with the dust bin (180). For example, the suction part (120) may be formed in the shape of a pipe with an open interior. The suction part (120) may be coupled with an extension tube (11). The suction part (120) may provide a suction path through which air containing dust can flow. Thus, air containing dust can pass through the suction part (120) and flow into the dust bin (180).

[0113] The dust separation unit (130) may be equipped with at least one cyclone unit capable of separating dust by cyclone flow. For example, the dust separation unit (130) may include a first cyclone unit and a second cyclone unit.

[0114] The first cyclone section is configured to apply the principle of a dust collector that utilizes centrifugal force to separate dust sucked into the interior of the main body (100) through the suction section (120). That is, the first cyclone section refers to a space where cyclone flow occurs along the inner surface of the dust container (180), and the first cyclone section may refer to a part of the space inside the dust container (180).

[0115] The first cyclone section can be connected to the suction section (120). The first cyclone section can separate dust sucked into the interior through the suction section (120). The space inside the first cyclone section can be connected to the space inside the dust bin (180).

[0116] The cyclone flow generated in the first cyclone section may be due to the suction force of the suction motor (140).

[0117] For example, the cyclone flow generated in the first cyclone section can be formed between the inner surface of the dust bin (180) and the mesh covering the outer surface of the second cyclone.

[0118] The second cyclone section can separate dust again from the air that has passed through the first cyclone section. That is, the second cyclone section can filter out fine dust from the air that has passed through the first cyclone section and the mesh screen.

[0119] At this time, the second cyclone section may be located inside the first cyclone section. The second cyclone section may be placed inside the dust bin (180) and the mesh net.

[0120] The second cyclone section may include a plurality of cyclone bodies arranged in parallel. Accordingly, air discharged from the first cyclone section may pass through a mesh screen and be divided to pass through a plurality of cyclone bodies.

[0121] The suction motor (140) can generate a suction airflow that sucks in air. The suction motor (140) can be housed within a motor housing (160).

[0122] The suction motor (140) can generate suction force by rotation. For example, the suction motor (140) may include a rotor that rotates when power is applied and an impeller that rotates together with the rotation of the rotor. Accordingly, at this time, cyclone flow can be generated by the suction force of the suction motor (140).

[0123] The suction motor (140) may be located inside the motor housing (160). The motor housing (160) is positioned at the rear of the main body housing (110), and the internal space of the motor housing (160) may be in communication with the internal space of the main body housing (110).

[0124] The handle (150) can be grasped by a user. For example, the handle (150) may be formed in a roughly cylindrical shape. One end of the handle (150) in the longitudinal direction may be connected to the motor housing (160). The other end of the handle (150) in the longitudinal direction may be connected to the battery coupling part (170).

[0125] The handle (150) can be positioned between the suction motor (140) and the battery (190). Additionally, the handle (150) can be positioned at an angle of inclination with respect to the motor housing (160).

[0126] The motor housing (160) can accommodate a suction motor (140) inside. For example, the motor housing (160) can be formed in a cylindrical shape, and the longitudinal direction of the motor housing (160) (the axial direction of the suction motor (140)) can be formed along a direction that intersects the longitudinal direction of the main body housing (160) (the axial direction of the cyclone flow).

[0127] An air outlet (161) for discharging air discharged from the suction motor (140) may be formed in the motor housing (160). The air outlet (161) may include a plurality of openings communicating with the outside. For example, these plurality of openings may be formed in the shape of slits. Additionally, the air outlet (161) may be formed on the left and right sides of the motor housing (160). Accordingly, the exhaust from the suction motor (140) may not be directed toward the user's face while the user is holding the main body (100).

[0128] The control unit (162) may be placed in the motor housing (160). The control unit (162) may be placed on the outer surface of the motor housing (160). The control unit (162) may be composed of a plurality of buttons, and when a user presses a corresponding button, a command corresponding to that button can be executed. The user can input a command to operate or stop the vacuum cleaner (1) through the control unit (162).

[0129] The battery connection part (170) may be positioned at the rear lower side of the main body (100). The battery connection part (170) may be positioned at the lower side of the handle (150).

[0130] A battery (190) is detachably connected to the battery connection part (170). The battery (190) is detachably connected to the battery connection part (170) in a sliding manner. The battery (190) can be connected by moving from the rear to the front of the battery connection part (170), and can be separated by moving from the rear of the battery connection part (170).

[0131] The main body (100) may include a dust bin (180). The dust bin (180) may be connected to the suction part (120). A dust separation part (130) may be disposed inside the dust bin (180). The dust bin (180) may store dust separated by the dust separation part (130).

[0132] The dustbin (180) may include a dustbin body (181), a discharge cover (182), a dustbin compression lever (183), and a compressor (184).

[0133] The dustbin body (181) can provide a space for storing dust separated from the first cyclone section. For example, the dustbin body (181) can be formed in a shape similar to a cylinder.

[0134] The discharge cover (182) can be placed on the lower side of the dustbin body (181).

[0135] The discharge cover (182) may be provided to open and close one end in the longitudinal direction of the dust bin body (181). Specifically, the discharge cover (182) may selectively open and close the lower part of the dust bin body (181) that opens downward.

[0136] The discharge cover (182) may be formed to block a portion of the lower surface of the dustbin body (181). The discharge cover (182) may rotate downward relative to the hinge portion. A torsion spring may be provided at the hinge portion. Therefore, when the discharge cover (182) is separated from the dustbin body (181), it may be supported in a state rotated beyond a predetermined angle by the elastic force of the torsion spring.

[0137] The discharge cover (182) can be connected to the dustbin body (181) via a hook connection. Meanwhile, the discharge cover (182) can be detached from the dustbin (180) via a connection lever. The connection lever can be positioned at the front of the dustbin (180). Specifically, the connection lever can be positioned on the outer front side of the dustbin (180).

[0138] The dustbin compression lever (183) may be positioned on the outside of the dustbin (180). The dustbin compression lever (183) may be positioned to move up and down on the outside of the dustbin body (181). The dustbin compression lever (183) may be connected to a compressor (184). When the dustbin compression lever (183) moves downward due to an external force, the compressor (184) may also move downward together. This provides convenience for the user. The compressor (184) and the dustbin compression lever (183) may return to their original positions by means of an elastic member (not shown).

[0139] The compressor (184) can be placed inside the dustbin body (181). The compressor (184) can move within the internal space of the dustbin body (181). Specifically, the compressor (184) can move up and down within the dustbin body (181). Through this, the compressor (184) can compress the dust inside the dustbin body (181) downward.

[0140] The vacuum cleaner (1) may include a battery (190). For example, the battery (190) may be detachably coupled to the main body (100). The battery (190) may be detachably coupled to the battery coupling part (170) of the main body (100).

[0141] The battery (190) stores electrical energy and can supply power to each component, including the suction motor (140). The battery (190) can be placed at the bottom of the handle (150). Since the suction motor (140) and the battery (190), which are relatively heavy in the main body (100), are placed at the upper and lower sides of the handle (150), respectively, the weight can be evenly distributed overall. This prevents strain on the user's wrist when the user holds the handle (150) and cleans.

[0142]

[0143] Meanwhile, although not illustrated, the vacuum cleaner (1) may include an extension tube (11). The extension tube may be detachably connected to the suction part (120) of the main body (100). The extension tube may be formed in a cylindrical shape. The internal space of the extension tube may be in communication with the internal space of the suction part (120).

[0144] The vacuum cleaner (1) may include a cleaning module (12). The cleaning module (12) may be detachably coupled to an extension tube (11). The extension tube may be in communication with the cleaning module (12).

[0145] The main body (100) can be connected to the cleaning module (12) through the extension tube (11). The main body (100) can generate suction power through the suction motor (140) and provide suction power to the cleaning module (12) through the extension tube (11). Accordingly, external air can be drawn into the main body (100) by passing through the cleaning module (12) and the extension tube (11) by the suction power generated in the main body (100) of the vacuum cleaner (1). External dust can be drawn into the main body (100) through the cleaning module (12) and the extension tube (11).

[0146]

[0147] Meanwhile, FIG. 3 shows a perspective view of a filter for a vacuum cleaner according to an embodiment of the present invention, FIG. 4 shows a cross-sectional view of FIG. 3, FIG. 5 shows a cross-sectional view of a vacuum cleaner according to an embodiment of the present invention with the dust bin open, FIG. 6 shows an enlarged view of the part where the filter is attached in FIG. 5, and FIG. 7 shows a diagram for explaining a situation in which air is introduced into a vacuum cleaner according to an embodiment of the present invention.

[0148] Referring to FIGS. 3 to 7, a filter (200) according to one embodiment of the present invention is described as follows.

[0149] The vacuum cleaner (1) may include a filter (200). The filter (200) can filter out foreign substances from the air that has passed through the dust separation unit (130).

[0150] The filter (200) includes a filter section (210). The filter section (210) can filter out foreign substances from the air flowing into the suction motor (140) after passing through the dust separation section (130). For example, the filter section (210) may be a pre-filter.

[0151] The filter section (210) may be formed in a cylindrical shape. For example, the filter section (210) may have ring-shaped frames provided at both ends in the axial direction. Through this, the shape of the filter section (210) can be supported even when the suction force of the suction motor (140) is applied.

[0152] Specifically, the filter unit (210) may include a filter body (211) for filtering foreign substances, an annular frame (212) provided at both ends of the filter body (211) in the axial direction, and a plurality of vertical frames (213) connecting the annular frames and arranged along the circumferential direction.

[0153] At this time, a pair of annular frames (212) may be coupled to both axial ends of a cylindrical filter body (211). Each of the annular frames (212) may be formed in a ring shape. The annular frames (212) may include an upper annular frame (212a) positioned on the upper side of the filter body (211) and a lower annular frame (212b) positioned on the lower side of the filter body (211). At this time, the upper annular frame (212a) may be coupled to a turbine section (220). For example, the upper annular frame (212a) may be fixedly coupled to a turbine plate (221) of the turbine section (220). Alternatively, the upper annular frame (212a) may be formed integrally with the turbine plate (221).

[0154] Meanwhile, the outer diameter of the upper annular frame (212a) may be larger than the outer diameter of the lower annular frame (212b). With such a configuration, the rotation radius of the turbine section (220) can be maximized, and accordingly, the rotational force of the turbine section (220) can be maximized.

[0155] Additionally, the axial thickness of the upper annular frame (212a) may be greater than the axial thickness of the lower annular frame (212b). Through this, the connection between the turbine section (220) and the filter section (210) can be strengthened even when air flow force is applied to the turbine section (220).

[0156] The filter unit (210) may be placed in the internal space of the main body housing (110). The filter unit (210) may be placed above the dust separation unit (130). The filter unit (210) may be placed above the dust container (180). The filter unit (210) may be placed below the filter cover (111). The filter unit (210) may be placed in front of the suction motor (140).

[0157] Accordingly, when the suction motor (140) is driven, the suction airflow passes through the dust separation unit (130) and flows upward into the interior of the filter unit (210), and can pass from the inside to the outside of the filter unit (210) and enter the suction motor (140).

[0158] During this process, fine dust may accumulate on the inner surface of the filter section (210). The dust accumulated on the filter section (210) acts as flow resistance in the airflow path, which can cause a decrease in the suction performance of the vacuum cleaner. Therefore, it is necessary to periodically clean the filter section (210) to remove the dust accumulated on the filter.

[0159] To solve this, the filter (200) of the present invention further includes a turbine section (220) and a cleaning section (230). When the dust collection motor of the vacuum cleaner station (2) is operated, the turbine section (220) rotates by the suction force of the dust collection motor, and the filter section (210) rotates in conjunction with the rotation of the turbine section (220), and the cleaning section (230) rotates relative to the filter section (210) to sweep away foreign matter accumulated on the filter section (210).

[0160] Specifically, the turbine section (220) can be rotated by the flow of air. The turbine section (220) includes a turbine plate (221), a blade (222), a shaft (224), a guide pin (225), and a spring (226).

[0161] The turbine plate (221) may be formed in the shape of a disc. In this case, the turbine plate (221) may be formed with a radial center protruding upward to form a step. Specifically, the turbine plate (221) includes a valve part (221a) and a rotating part (221b). In this case, the valve part (221a) may be positioned radially inward from the rotating part (221b), and the valve part (221a) may be formed in a shape protruding upward from the rotating part (221b). The valve part (221a) and the rotating part (221b) may be formed to form a step.

[0162] The valve portion (221a) may be formed in the shape of a disc. The diameter of the valve portion (221a) may be formed to correspond to the diameter of the outside air inlet hole (112). The diameter of the valve portion (221a) may be the same as the diameter of the outside air inlet hole (112).

[0163] The valve section (221a) can open and close the outside air inlet hole (112). The valve section (221a) can be inserted into the outside air inlet hole (112) according to the vertical movement of the turbine section (220). When the valve section (221a) is inserted into the outside air inlet hole (112), the flow of air can be blocked. That is, the outside air inlet hole (112) can be sealed by the valve section (221a).

[0164] Meanwhile, one side (upper side) of the valve part (221a) can be exposed to the outside through the outside air inlet hole (112).

[0165] Additionally, a shaft (224) may be formed protruding from the lower surface of the valve portion (221a). The valve portion (221a) may receive an external force that moves in the up and down direction through the shaft (224).

[0166] The rotating part (221b) may be formed to extend radially outward from the valve part (221a). The rotating part (221b) may be formed to extend radially outward after being bent downward from the valve part (221a).

[0167] A blade (222) may be formed protrudingly on one side (upper side) of the rotating part (221b). Accordingly, when air flows through the external air inlet hole (112), rotational force can be applied by hydraulic pressure.

[0168] Therefore, the rotating part (221b) can be rotated by the flow of air.

[0169] A filter unit (210) may be attached to the other side (lower side) of the rotating part (221b). The filter unit (210) is fixed to the rotating part (221b) so that it can rotate together with the rotating part (221b) when the rotating part (221b) rotates.

[0170] A plurality of blades (222) may be formed protruding along the circumferential direction from one side (upper side) of the turbine plate (221). Each blade (222) may be formed protruding from one side (upper side) of the turbine plate (221) in a shape having a predetermined curvature.

[0171] Air flow force can be applied to the blade (222). The blade (222) can receive air flow force and rotate together with the turbine plate (221) with the shaft (224) as the axis of rotation.

[0172] The shaft (224) can provide a rotation axis for the turbine plate (221). The shaft (224) may be formed to protrude downward from the lower surface of the valve portion (221a). The shaft (224) may be formed to protrude from the radial center of the valve portion (221a).

[0173] The shaft (224) may be formed in a hollow cylindrical shape. At least a portion of the guide pin (225) may be inserted into the interior of the shaft (224). The upper end of the shaft (224) may be connected to the turbine plate (221), and the guide pin (225) may be inserted into the lower end of the shaft (224).

[0174] The guide pin (225) can guide the axial movement of the shaft (224). The guide pin (225) can be positioned along a direction perpendicular to the turbine plate (221). At this time, one end (upper side) of the guide pin (225) in the longitudinal direction is inserted into the shaft (224), and the other end (lower side) of the guide pin (225) in the longitudinal direction can be supported by contacting the cleaning part (230).

[0175] Through this, the shaft (224) can be coupled with the cleaning part (230) so as to be movable in the up and down direction along the guide pin (225).

[0176] Meanwhile, a spring (226) may be positioned between the cleaning section (230) and the shaft (224) to provide a restoring force. The spring (226) may be positioned along a direction perpendicular to the turbine plate (221). The spring (226) may surround a portion of the guide pin (225). One end (upper end) in the longitudinal direction (axial direction) of the spring (226) may be in contact with the lower end of the shaft (224), and the other end (lower end) in the longitudinal direction of the spring (226) may be in contact with the shaft support (234) of the cleaning section (230).

[0177] Through this, when the cleaning part (230) moves upward, the spring (226) can elastically support the shaft (224) upward, and the shaft (224) can be raised along the guide pin (225).

[0178] The cleaning section (230) rotates relative to the filter section (210) according to the rotation of the turbine section (220) and can come into contact with the inner surface of the filter section (210).

[0179] The cleaning unit (230) may be disposed inside the main body housing (110). The cleaning unit (230) includes a cleaning unit body (231), a cleaning unit column (232), a brush (233), a shaft support (234), and a spoke (235).

[0180] The cleaning part body (231) is formed in an annular shape and can be provided to be rotatable relative to the filter part (210). The cleaning part body (231) can be arranged to be movable up and down in the main body housing (110).

[0181] At this time, a stopper (113) that limits the movement range of the cleaning body (231) may be formed in the main body housing (110). That is, an upper stopper (113a) that limits the upward movement of the cleaning body (231) and a lower stopper (113b) that limits the downward movement of the cleaning body (231) may be formed inside the main body housing (110). Accordingly, the cleaning body (231) can move up and down between the upper stopper (113a) and the lower stopper (113b).

[0182] Meanwhile, the cleaning unit body (231) can be combined with the dust separation unit (130). The dust separation unit (130) can be combined with the lower side of the cleaning unit body (231). Therefore, when the cleaning unit (230) moves up and down, the dust separation unit (130) can also move up and down together.

[0183] The cleaning section column (232) may be formed to extend along the axial direction from the cleaning section body (231). Multiple cleaning section columns (232) may be formed to extend upward from the cleaning section body (231) at predetermined intervals. At this time, the cleaning section column (232) may be placed inside the filter section (210).

[0184] The brush (233) is coupled to the cleaning section column (232) and can be positioned along the axial direction (length direction) of the cleaning section body (231).

[0185] The brush (233) may be composed of multiple bristle bristles. The brush (233) can sweep away dust.

[0186] The brush (233) can come into contact with the inner surface of the filter section (210). Therefore, when the turbine section (220) and the filter section (210) are rotated, the brush (233) can clean the inner surface of the filter section (210).

[0187] The shaft support (234) is positioned at the radial center of the cleaning body (231) and can be combined with the guide pin (225) and spring (226) to support the shaft (224). For example, the shaft support (234) may be formed in the shape of a cylinder with an open top, and the lower ends of the guide pin (225) and spring (226) may be accommodated inside.

[0188] The spokes (235) can connect the shaft support (234) and the cleaning body (231). The spokes (235) are formed in the shape of rods and can be arranged in multiple numbers along the circumferential direction with the shaft support (234) as the center. Accordingly, when the cleaning body (231) moves in the up and down direction, the shaft support (234) connected through the spokes (235) can also move together.

[0189] Meanwhile, in this embodiment, when the dust bin (180) is opened, the dust separation unit (130) can be moved downward by a predetermined distance (in the direction where the discharge cover (182) of the dust bin (180) is positioned). For example, the dust separation unit (130) may not be fixed to the main body housing (110) but may be coupled to the cleaning unit body (231).

[0190] Accordingly, when the dust bin (180) is opened, the turbine section (220), the cleaning section (230), and the dust separation section (130) can be moved along the axial direction by gravity or the suction force of the vacuum cleaner station (2). Also, the outside air inlet hole (112) can be opened.

[0191] In this state, when the cleaning station (2) is operated, outside air can pass through the outside air inlet hole (112). At this time, the blade (222) is rotated by the air passing through the outside air inlet hole (112), and the turbine plate (221) and the filter section (210) can be rotated with the shaft (224) as the axis of rotation. Accordingly, the brush (233) of the cleaning section (230) can clean foreign matter accumulated on the inner surface of the filter section (210).

[0192] Meanwhile, when the dust bin (180) is closed, the lower part of the dust separation unit (130) can be pushed up by the discharge cover (182). Thus, the cleaning unit body (231) can be moved toward the filter cover (111) together with the dust separation unit (130). Additionally, as the shaft support unit (234) moves together with the cleaning unit body (231), the spring (226) can press the shaft (224) toward the filter cover (111). As a result, the valve unit (221a) connected to the shaft (224) can block the outside air inlet hole (112). Thus, the flow of air through the outside air inlet hole (112) is blocked, and the rotation of the turbine unit (220) can be stopped.

[0193] Therefore, according to the present invention, when a user places the vacuum cleaner (1) on the vacuum cleaner station (2), the dust bin (180) is opened, and a path is opened to rotate the turbine unit (220) in accordance with the opening of the dust bin (180), and the dust bin (180) is collected by the operation of the dust collection motor of the vacuum cleaner station (2), and at the same time the turbine unit (220) is rotated, the brush (233) can automatically clean the filter.

[0194] In addition, when dust collection for the dust container (180) is finished, the dust container (180) is closed and the passage that allows the turbine part (220) to rotate is closed, so there is an advantage that there is no need to assemble the filter (200) separately after cleaning of the filter (200) is finished.

[0195] In addition, the turbine section (220) rotates while the dust collection motor of the vacuum cleaner station (2) is in operation, and the rotating turbine section (220) is visible to the user through the outside air inlet hole (112), so the user can visually confirm that the filter section (210) is being cleaned.

[0196] In addition, the cleaning performance is increased because the inner surface of the filter part (210) is directly swept using a brush (233) rather than simply cleaning the filter through the flow of air.

[0197]

[0198] Meanwhile, FIG. 8 shows a perspective view of a vacuum cleaner station according to one embodiment of the present invention, and FIG. 9 shows a cross-sectional view of FIG. 8.

[0199] Referring to FIGS. 8 and FIGS. 9, a vacuum cleaner station (2) according to one embodiment of the present invention is described as follows.

[0200] A vacuum cleaner (1) can be placed in the vacuum cleaner station (2). A vacuum cleaner (1) can be attached to the side of the vacuum cleaner station (2). Specifically, the main body (100) of the vacuum cleaner (1) can be attached to the side of the vacuum cleaner station (2). The vacuum cleaner station (2) can remove dust from the dust bin (180) of the vacuum cleaner (1).

[0201] The vacuum cleaner station (2) may include a housing (21). The housing (21) may form the exterior of the vacuum cleaner station (2). Specifically, the housing (21) may be formed in the shape of a column including at least one outer wall surface.

[0202] The housing (21) may have a space formed to accommodate a dust collection unit that stores dust inside and a dust suction module that generates a flow force for dust to be collected by the dust collection unit.

[0203] The housing (21) may include a bottom surface, an outer wall surface, and an upper surface.

[0204] The bottom surface can support the lower side of the dust suction module in the direction of gravity. That is, the bottom surface can support the lower side of the dust collection motor of the dust suction module.

[0205] In this case, the floor surface may be positioned facing the ground. The outer wall surface may refer to a surface formed along the direction of gravity. For example, the outer wall surface may refer to a surface connected perpendicularly to the floor surface.

[0206] When the vacuum cleaner (1) is mounted on the vacuum cleaner station (2), the direction in which the vacuum cleaner (1) is exposed to the outside of the vacuum cleaner station (2) can be called the front.

[0207] Also, the side opposite the front side based on the internal space of the housing (21) can be called the rear side of the vacuum cleaner station (2).

[0208] And, when looking at the front with respect to the internal space of the housing (21), the left side can be called the left side and the right side can be called the right side.

[0209] The upper surface can form the upper exterior of the vacuum cleaner station. That is, the upper surface may refer to the surface exposed to the outside, positioned at the uppermost side in the direction of gravity of the vacuum cleaner station.

[0210] For reference, in this embodiment, the terms upper and lower may refer to the upper and lower sides, respectively, along the direction of gravity (a direction perpendicular to the ground) while the vacuum cleaner station (2) is installed on the ground.

[0211] The vacuum cleaner station (2) may include a coupling part (22) for coupling the vacuum cleaner (1). Specifically, the coupling part (22) is positioned on an outer wall surface, and the main body (100) and dust bin (180) of the vacuum cleaner (1) can be coupled.

[0212] The connecting part (22) may refer to a surface formed in a concave groove shape facing inward from the outer wall surface of the vacuum cleaner station (2) and a wall surrounding it.

[0213] Accordingly, the vacuum cleaner (1) can be accommodated in the connecting part (22). For example, the connecting part (22) can accommodate at least a portion of the dust bin (180) and at least a portion of the battery (190) of the vacuum cleaner (1).

[0214] A dust passage hole (not shown) may be formed in the connecting portion (22) to allow air from outside the housing (21) to flow into the interior. The dust passage hole (not shown) may be formed in a hole shape corresponding to the shape of the dust container (180) so that dust from the dust container (180) flows into the dust collection portion. The dust passage hole (not shown) may be formed corresponding to the shape of the discharge cover that opens and closes the internal space of the dust container (180). The dust passage hole (not shown) may be formed to communicate with the flow path portion (not shown) to be described later.

[0215] The lower part of the connecting portion (22) may be formed in a shape corresponding to the outer surface of the dust bin (180). The front outer surface of the dust bin (180) may be connected to the lower part of the connecting portion (22).

[0216] Meanwhile, a cover opening hole (not shown) may be formed in the coupling part (22), and a cover opening member (not shown) to be described later may pass through the cover opening hole (not shown) and press a coupling lever (not shown) that opens the discharge cover (not shown).

[0217] A coupling sensor (not shown) may be placed in the coupling portion (22). The coupling sensor (not shown) can detect whether the vacuum cleaner (1) is coupled to the coupling portion (22).

[0218] For example, the combined sensor (not shown) may include a micro switch. For another example, the combined sensor (not shown) may include an infrared sensor (IR sensor).

[0219] The vacuum cleaner station (2) of the present invention may include a fixed unit (23). The fixed unit (23) may be placed in the coupling part (22). The fixed unit (23) may fix a vacuum cleaner (1) that is coupled to the coupling part (22).

[0220] The fixing unit (23) can pressurize and fix the dust bin (180) of the vacuum cleaner (1) when the vacuum cleaner (1) is coupled to the vacuum cleaner station (2). To this end, the fixing unit (23) may include a fixing member that moves toward the dust bin (180) from the outside of the dust bin (180) when the dust bin (180) is coupled to the coupling part (22), a motor for driving the fixing member, and a power transmission member (e.g., a link) for transmitting power from the motor.

[0221] The vacuum cleaner station (2) of the present invention may include a dust bin cover control unit (24). The dust bin cover control unit may be configured to open and close a dust passage hole (not shown).

[0222] The dustbin cover control unit (24) may include a cover control frame that rotates in contact with the discharge cover of the dustbin (180), a motor that provides power to the cover control frame, and a power transmission member (e.g., a link) for transmitting power from the motor. Accordingly, the cover control frame can control the angle at which the discharge cover (182) rotates, and the dustbin (180)

[0223] The vacuum cleaner station (2) of the present invention may include a dust collection unit (27). The dust collection unit (27) may be placed inside the housing (21). The dust collection unit may be placed on the lower side in the direction of gravity of the coupling unit (22).

[0224] For example, the dust collection unit (27) may refer to a dust bag that collects dust sucked in from inside the dust bin (180) of the vacuum cleaner (1) by a dust collection motor.

[0225] The dust collector can be detachably connected to the housing (21).

[0226] Accordingly, the dust collector (27) can be separated from the housing (21) and discarded, and a new dust collector can be attached to the housing (21). That is, the dust collector (27) can be defined as a consumable part.

[0227] The dust bag can be equipped so that when suction force is generated by a dust collection motor, its volume expands and dust is contained inside.

[0228] To this end, the dust bag may be made of a material that allows air to pass through but does not allow foreign substances such as dust to pass through. For example, the dust bag may be made of non-woven fabric and may have a cuboid shape when its volume is expanded.

[0229] Therefore, since the user does not need to separately tie the dust-collected bag, user convenience can be improved.

[0230] The vacuum cleaner station (2) may include a flow path (28). The flow path (28) may connect the dust bin (180) of the vacuum cleaner (1) and the dust collection unit (27). The flow path (28) may be a space formed towards the rear from the dust passage hole, or it may be a flow path formed by bending downward from the dust passage hole so that dust and air can flow through it.

[0231] Dust inside the dust bin (180) of the vacuum cleaner (1) can be moved to the dust collection unit (27) through the Euro unit (28).

[0232] The vacuum cleaner station (2) may include a dust suction module. The dust suction module may include a dust collection motor (29), a first filter (not shown), and a second filter (not shown).

[0233] The dust collection motor (29) can be positioned at the bottom of the dust collection section (27). The dust collection motor (29) can generate suction force in the flow path section (28). Through this, the dust collection motor (29) can provide suction force capable of sucking up dust inside the dust bin (180) of the vacuum cleaner (1).

[0234] The dust collection motor (29) can generate suction force by rotation. A first filter (not shown) may be placed between the dust collection unit and the dust collection motor. The first filter may be a pre-filter. A second filter (not shown) may be placed between the dust collection motor and the outer wall surface. The second filter (not shown) may be a HEPA filter.

[0235] Meanwhile, the vacuum cleaner station (2) may further include a charging unit (not shown). The charging unit may be placed in the coupling unit (22). The charging unit (not shown) can supply power to the battery (190) of the vacuum cleaner (1) coupled to the coupling unit (22).

[0236] Therefore, according to the present invention, when the vacuum cleaner (1) is coupled to the vacuum cleaner station (2), the discharge cover (182) of the dust bin (180) opens, and the dust bin (180) can be opened. Then, the dust collection motor (29) is operated, and the suction force of the dust collection motor (29) can be transmitted into the dust bin (180) through the flow path. Then, as negative pressure is applied to the turbine section (220), the turbine section (220) moves a predetermined distance toward the flow path (28) of the vacuum cleaner station (2), and the valve section (221a) opens, and the outside air inlet hole (112) can be opened. Then, as air is drawn in through the outside air inlet hole (112) by the suction force of the dust collection motor (29), hydraulic pressure is applied to the blade (222), and the blade (222) can be rotated around the shaft (224). And, as the turbine section (220) and the filter section (210) rotate together, the inner surface of the filter section (210) can be cleaned by the brush (233) of the cleaning section (230).

[0237] Consequently, according to the present invention, when the vacuum cleaner (1) is coupled to the vacuum cleaner station (2), the turbine part (220) rotates through the suction power of the dust collection motor of the vacuum cleaner station (2), thereby enabling the filter part (210) to be cleaned automatically.

[0238] Meanwhile, the vacuum cleaner station (2) of the present invention may further include a suction port blocking part (26).

[0239] The suction port blocking part (26) is positioned in the housing (21) and can open and close the suction port of the vacuum cleaner (1) while the vacuum cleaner (1) is connected.

[0240] The intake port blocking part (26) includes a blocking part body, a shutter, and an intake port opening / closing actuator.

[0241] The blocking body is coupled to the housing (21) and positioned facing the cleaning module (12) of the vacuum cleaner (1).

[0242] The blocking body can be coupled to the first outer wall surface. Specifically, the blocking body can be positioned at the front lower side of the vacuum cleaner station (2). At this time, the blocking body can be positioned so as to come into contact with the lower side of the cleaning module (12).

[0243] The blocking body may accommodate a shutter and an intake opening / closing actuator inside. In this case, the shutter may be coupled to the blocking body so as to be movable relative to it. The shutter may be coupled to the blocking body so as to be movable back and forth.

[0244] For example, the blocking body may be formed in the shape of a cuboid, and a shutter opening may be formed on one side of the blocking body so that the shutter can move in and out as the shutter moves.

[0245] The shutter may be provided to be capable of linear reciprocating movement within the blocking body. That is, the shutter may be housed inside the blocking body and may move linearly from the blocking body to the outside depending on the operation of the intake opening / closing actuator.

[0246] For example, the shutter can be formed in the shape of a square plate.

[0247] The shutter can be moved to be withdrawn from the blocking body according to the operation of the suction port opening / closing actuator. Specifically, the shutter can be moved outward from the blocking body while the dust collection motor (29) is operating. In this case, the shutter can be moved to a position facing the suction port of the cleaning module (12).

[0248] Therefore, when the shutter is moved while the vacuum cleaner (1) is connected to the vacuum cleaner station (2), the suction port of the cleaning module (12) can be blocked.

[0249] Meanwhile, the shutter can be formed from an elastic material. Therefore, when the dust collection motor (29) is operated, the shutter can bend and block the intake port.

[0250] The intake opening / closing actuator can provide a driving force to move the shutter. For example, the intake opening / closing actuator may be a motor. In this case, the intake opening / closing actuator may be connected to the shutter through at least one gear. Thus, the shutter can be moved back and forth according to the operation of the intake opening / closing actuator.

[0251] Meanwhile, although not illustrated, the suction port blocking part (26) according to another embodiment may be positioned so that the lower side of the blocking part body faces the ground and the upper side faces the cleaning module (12).

[0252] Also, the shutter can move back and forth along the up and down direction on the blocking body.

[0253] At this time, the shutter may be provided so that it can be inserted into the suction port of the cleaning module (12) by upward movement to block the suction port. For example, the shutter may be formed such that the front-rear width of the upper end is narrower than the front-rear width of the lower end. With such a configuration, the airtightness of the suction port can be improved.

[0254] When the vacuum cleaner (1) is connected to the vacuum cleaner station (2) and the dust collection motor (29) is operated, external air can be introduced through the air outlet (161) formed in the air passage within the suction part (120) and the motor housing (160). At this time, the amount of air introduced through the air outlet (161) can be significantly reduced due to resistance by the filter (200).

[0255] To resolve this, the present invention is configured such that an external air inlet hole (112) is formed in the filter cover, and when the dust collection motor (29) is operated, the turbine unit (220) moves in the axial direction and the external air inlet hole (112) is opened. However, as long as the suction port formed in the cleaning module (12) is open, a large portion of the air sucked in by the dust collection motor (29) can still pass through the flow path of the suction unit (120), pass through the dust bin (180), and then flow directly into the vacuum cleaner station (2). In this case, the rotational force of the turbine unit (220) may be reduced.

[0256] However, as in the present invention, when the suction port of the cleaning module (12) is blocked by the suction port blocking part (26), the inflow of air through the suction port is blocked, so more air can be introduced through the external air inflow hole (112), and the rotational force of the turbine part (220) can be increased.

[0257] Meanwhile, although not shown, the main body of the blocking part may be coupled to the housing (21) and positioned facing the opening of the suction part (120) of the vacuum cleaner (1).

[0258] In this case, the vacuum cleaner (1) may have the extension tube (11) and cleaning module (12) separated from the main body (100).

[0259] Specifically, the blocking body can be positioned to come into contact with the front end of the main body (100) of the vacuum cleaner.

[0260] And, the shutter can be provided to block the flow path inside the intake section (120).

[0261] Therefore, since the inflow of air through the flow path of the intake section (120) is blocked by the intake port blocking section (26), more air can be introduced through the outside air inflow hole (112), and the rotational force of the turbine section (220) can be increased.

[0262]

[0263] Meanwhile, FIG. 10 shows a cross-sectional view of a vacuum cleaner according to a second embodiment of the present invention, FIG. 11 shows a perspective view for explaining a filter unit according to a second embodiment of the present invention, FIG. 12 shows a drawing for explaining the state in which a filter unit is coupled to a filter cover in a vacuum cleaner according to a second embodiment of the present invention, FIG. 13 shows a bottom view of FIG. 12, FIG. 14 shows a drawing for explaining the state in which a filter cover is opened in a vacuum cleaner according to a second embodiment of the present invention, FIG. 15 shows a cross-sectional view of the state in which a dust bin is opened in a vacuum cleaner according to a second embodiment of the present invention, FIG. 16 shows an enlarged view of the part in FIG. 15 where a filter is coupled, FIG. 17a and FIG. 17b show drawings for explaining the arrangement of guide vanes of a filter cover and blades of a filter in a vacuum cleaner according to a second embodiment of the present invention.

[0264] Referring to FIGS. 10 to 17b, a filter (1200) according to another embodiment of the present invention is described as follows.

[0265] Meanwhile, except for what is specifically explained in this embodiment to avoid redundant explanations, the structure and effect of the filter (200) according to one embodiment of the present invention are identical, so it may be used by reference.

[0266] The filter (1200) of this embodiment includes a filter section (1210), a turbine section (1220), a cleaning section (1230), and a support section (1250).

[0267] The filter section (1210) of the present embodiment is formed in a cylindrical shape, and one end (upper side) in the longitudinal direction may be connected to the filter cover (111). For example, the filter section (1210) may have a ring-shaped frame provided at both ends in the axial direction. Through this, the shape of the filter section (1210) can be supported even when the suction force of the suction motor (140) is applied.

[0268] Specifically, the filter unit (1210) may include a filter body (1211) for filtering foreign substances, an annular frame (1212) provided at both ends of the filter body (1211) in the axial direction, and a plurality of vertical frames (1213) connecting the annular frames and arranged along the circumferential direction.

[0269] At this time, a pair of annular frames (1212) can be attached to both axial ends of a cylindrical filter body (1211). Each of the annular frames (1212) can be formed in a ring shape.

[0270] Additionally, a coupling groove (1213a) may be formed in the vertical frame (1213) to be coupled with the filter cover (111). For example, the coupling groove (1213a) may be formed on the outer surface of the vertical frame (1213) and may be formed along the longitudinal direction of the vertical frame (1213). With this configuration, it can be coupled by receiving a coupling projection formed protruding from the lower surface of the filter cover (111).

[0271] Additionally, the filter section (1210) may further include an extension section (1214) formed to extend upward from the annular frame (1212). The extension section (1214) may be formed to extend upward from the annular frame (1212) positioned on the upper side. That is, the filter (1200) may be formed to extend upward along the axial direction in only one of the pair of annular frames (1212). Through this, the vertical movement of the turbine section (1220) can be guided. Additionally, the outer side of the blade (1222) can be wrapped to strengthen the rotational force of the turbine section (1220).

[0272] Meanwhile, the filter unit (1210) and the filter cover (111) may be detachably coupled, and the filter unit (1210) and the filter cover (111) may also be fixedly coupled. In the case where the filter unit (1210) and the filter cover (111) are fixedly coupled, the filter cover (111) may also be included as a component of the filter (1200).

[0273] Meanwhile, in this embodiment, the filter cover (111) may have guide vanes (111a) formed thereon to guide the flow of air. Multiple guide vanes (111a) may be formed along the circumferential direction on the other side (lower side) of the filter cover (111). Each guide vane (111a) may be formed to protrude from one side (upper side) of the filter cover (111) in a shape having a predetermined curvature.

[0274] At this time, each guide vane (111a) may be formed at regular angular intervals and may have the same curvature. Accordingly, a channel through which air can flow may be formed between the plurality of guide vanes (111a).

[0275] Additionally, with the filter (1200) mounted on the main body housing (110), the guide vane (111a) can be positioned between the valve part (1223a) and the blade (1222), which will be described later.

[0276] Meanwhile, the turbine section (1220) includes a turbine plate (1221), a blade (1222), a turbine cover (1223), and a shaft (1224).

[0277] The turbine plate (1221) may be formed in the shape of a disc. In this case, a hole through which a shaft (1224) can pass may be formed in the radial center of the turbine plate (1221).

[0278] A blade (1222) may be formed protrudingly on one side (upper side) of the turbine plate (1221). Accordingly, when air flows through the outside air inlet hole (112), the blade (1222) can be subjected to rotational force by hydraulic pressure. Therefore, the turbine plate (1221) can be rotated by the flow of air.

[0279] Meanwhile, a cleaning unit (1230) may be connected to the other side (lower side) of the turbine plate (1221). That is, a cleaning unit column (1232) may be formed protrudingly on the other side of the turbine plate (1221). Therefore, in this embodiment, when the turbine plate (1221) is rotated, the cleaning unit (1230) may rotate together.

[0280] A plurality of blades (1222) may be formed protruding along the circumferential direction on one side (upper side) of the turbine plate (1221). Each blade (1222) may be formed protruding from one side (upper side) of the turbine plate (1221) in a shape having a predetermined curvature. That is, the blade (1222) may be a curved surface formed protruding along a direction perpendicular to the turbine plate (1221).

[0281] Meanwhile, the direction in which the curved surface of each blade (1222) is formed may intersect with the direction of the flow path formed between the guide vanes (111a). For example, the direction of the flow path formed between the guide vanes (111a) may face the concave surface of the blade (1222). Thus, when the outside air inlet hole (112) is opened and air is introduced, it passes through the flow path between the guide vanes (111a) and then pressurizes the concave surface of the blade (1222).

[0282] Accordingly, according to the present embodiment, the rotation of the turbine part (1220) can be increased by increasing the hydraulic pressure that pressurizes the blade (1222).

[0283] Air flow force can be applied to the blade (1222). The blade (1222) can receive air flow force and rotate together with the turbine plate (1221) and turbine cover (1223) with the shaft (1224) as the axis of rotation.

[0284] The turbine cover (1223) is attached to one side (upper side) of the turbine plate (1221) and can cover the upper side of the turbine plate (1221).

[0285] The turbine cover (1223) may be formed to protrude upward by forming a step. The turbine cover (1223) includes a valve part (1223a) and a cover part (1223b).

[0286] At this time, the valve portion (1223a) may be positioned radially inward from the cover portion (1223b), and the valve portion (1223a) may be formed in a shape protruding upward from the cover portion (1223b). The valve portion (1223a) and the cover portion (1223b) may be formed as steps.

[0287] The valve portion (1223a) may be formed in the shape of a disc. The diameter of the valve portion (1223a) may be formed to correspond to the diameter of the outside air inlet hole (112). The diameter of the valve portion (1223a) may be the same as the diameter of the outside air inlet hole (112).

[0288] The valve part (1223a) can open and close the outside air inlet hole (112). The valve part (1223a) can be inserted into the outside air inlet hole (112) by moving up and down. When the valve part (1223a) is inserted into the outside air inlet hole (112), the flow of air can be blocked. That is, the outside air inlet hole (112) can be sealed by the valve part (1223a).

[0289] Meanwhile, one side (upper side) of the valve part (1223a) can be exposed to the outside through the outside air inlet hole (112).

[0290] Additionally, a shaft (1224) may be formed protruding from the lower surface of the valve portion (1223a). The valve portion (1223a) may receive an external force that moves in the up and down direction through the shaft (1224).

[0291] The cover portion (1223b) may be formed to extend radially outward from the valve portion (1223a). The cover portion (1223b) may be formed to extend radially outward after being bent downward from the valve portion (1223a).

[0292] The cover portion (1223b) may be coupled to the turbine plate (1221) on its lower side. The cover portion (1223b) may be in contact with one side of the turbine plate (1221). Additionally, the cover portion (1223b) may be spaced upward by a predetermined distance from the turbine plate (1221) according to the axial movement of the valve portion (1223a).

[0293] At this time, a plurality of slits may be formed along the circumferential direction in the cover portion (1223b). The slits may be formed corresponding to the shape of the blade (1222). That is, the slits may be formed in the same shape as the upper part of the blade (1222). Therefore, when the cover portion (1223b) is combined with the turbine plate (1221), the blade (1222) can pass through the slits. Thus, when the cover portion (1223b) moves in the axial direction, the blade (1222) can guide the reciprocating movement of the cover portion (1223b). In addition, the turbine plate (1221) and the turbine cover (1223) can rotate together due to the penetrating connection between the blade (1222) and the slits.

[0294] Meanwhile, the turbine cover (1223) may further include a rim portion (1223c). The rim portion (1223c) may be formed by bending and extending upward from the radially outer end of the cover portion (1223b). At this time, the extension height of the rim portion (1223c) may be smaller than the height of the blade (1222). Through this, the upward movement distance of the cover portion (1223b) can be limited. That is, when the valve portion (1223a) moves upward by a predetermined distance, the rim portion (1223c) may come into contact with the inner surface (lower surface) of the filter cover (111), and the valve portion (1223a) may be prevented from rising further.

[0295] The shaft (1224) can provide a rotation axis for the turbine cover (1223) and the turbine plate (1221). The shaft (1224) may be formed to protrude downward from the lower surface of the valve portion (1223a). The shaft (1224) may be formed to protrude from the radial center of the valve portion (1223a). The shaft (1224) may pass through a hole formed in the center of the cover portion (1223b). A lower portion of the shaft (1224) may be received in the support portion (1250).

[0296] The shaft (1224) may be formed in a hollow cylindrical shape. The upper end of the shaft (224) may be connected to a turbine cover (1223), and the lower end of the shaft (1224) may be in contact with a plunger (1240) to be described later.

[0297] Meanwhile, although not shown, a bearing may be further provided on the outer surface of the shaft (1224). This prevents friction from occurring between the shaft (1224) and the support member (1250) and degrading performance when the turbine part (1220) rotates.

[0298] The cleaning unit (1230) of the present embodiment can be connected to the turbine unit (1220) and rotated together. The cleaning unit (1230) rotates relative to the filter unit (1210) according to the rotation of the turbine unit (1220) and can clean the inner surface of the filter unit (1210) by coming into contact with the inner surface of the filter unit (1210).

[0299] The cleaning unit (1230) may be placed inside the main body housing (110). The cleaning unit (1230) includes a cleaning unit column (1232) and a brush (1233).

[0300] The cleaning section columns (1232) may be formed extending along the axial direction from the turbine plate (1221). Multiple cleaning section columns (1232) may be formed extending downward from the turbine plate (1221) in a circumferential direction at predetermined intervals. At this time, the cleaning section columns (1232) may be placed inside the filter section (210).

[0301] The brush (1233) is coupled to the cleaning column (1232) and can be positioned along the axial direction (lengthwise direction) of the turbine plate (1221).

[0302] The brush (1233) may be composed of multiple bristle bristles. The brush (1233) can sweep away dust.

[0303] The brush (1233) can come into contact with the inner surface of the filter section (1210). Therefore, when the turbine section (1220) rotates, the brush (1233) can clean the inner surface of the filter section (1210).

[0304] Meanwhile, the vacuum cleaner (1) of the present embodiment may further include a plunger (1240) that reciprocates the shaft (1224) along the axial direction.

[0305] The plunger (1240) may be provided to penetrate the dust separation section (130). For example, the plunger (1240) may be formed in a cylindrical shape and pass through the center of the dust container (180) and / or the center of the dust separation section (130).

[0306] That is, in the dust separation part (130) of the present embodiment, a tube through which a plunger (1240) can pass may be formed. At this time, the diameter of the tube may be formed to correspond to the diameter of the plunger (1240) (e.g., the same diameter).

[0307] Meanwhile, one end (upper side) in the longitudinal direction of the plunger (1240) may be positioned to come into contact with the shaft (1224). That is, the upper end of the plunger (1240) may be positioned inside the shaft receiving portion (1251) to come into contact with the shaft (1224).

[0308] Additionally, the longitudinal end of the plunger (1240) may be positioned toward the bottom of the dust bin (180). At this time, when the discharge cover (182) of the dust bin (180) closes the dust bin (180), the lower end of the plunger (1240) may come into contact with the discharge cover (182).

[0309] Meanwhile, stoppers are formed protruding outward in the radial direction on one side and the other side of the plunger (1240) in the longitudinal direction, respectively, to limit the range of movement of the plunger (1240). Through this, the plunger (1240) can be prevented from being arbitrarily separated from the vacuum cleaner (1).

[0310] Accordingly, the plunger (1240) can be moved in conjunction with the opening and closing of the dust bin (180). Additionally, the movement of the plunger (1240) can open and close the outside air inlet hole (112).

[0311] Specifically, when the dust bin (180) is closed, the plunger (1240) presses the shaft (1224), and the turbine cover (1223) connected to the shaft (1224) can be moved away from the turbine plate (1221).

[0312] Accordingly, the valve part (1223a) blocks the outside air inlet hole (112), thereby blocking the air flow between the filter cover (111) and the turbine cover (1223).

[0313] Meanwhile, when the dust bin (180) is opened, the turbine cover (1223) is moved by gravity or suction force applied from the vacuum cleaner station (2) to come into contact with the turbine plate (1221), and the shaft (1224) can push the plunger (1240) toward the other side in the longitudinal direction (in the direction of the opening of the dust bin (180). In this process, a space in which air can flow can be formed between the filter cover (111) and the turbine cover (1223). That is, the outside air inlet hole (112) can be opened.

[0314] In this state, air flows between the filter cover (111) and the turbine cover (1223) by the suction power of the dust collection motor of the vacuum cleaner station (2), and as the turbine cover (1223) rotates, the filter section (1210) can be cleaned.

[0315] In this embodiment, the filter (1200) may further include a support member (1250) on which the other axial side of the filter part (1210) is seated and which rotatably supports the cleaning part (1230).

[0316] The support member (1250) may be placed inside the main body housing (110). The support member (1250) may be placed above the dust separation member (130). The support member (1250) may be placed below the filter member (1210), the turbine member (1220), and the cleaning member (1230).

[0317] The support portion (1250) includes a shaft receiving portion (1251), a filter coupling portion (1252), and a spoke (1253).

[0318] The shaft receiving portion (1251) may be positioned at the radial center of the filter portion (1210) and / or the cleaning portion (1230). The shaft receiving portion (1251) is formed in a cylindrical shape and may accommodate at least a portion of the shaft (1224) and the plunger (1240) inside. For example, the lower end of the shaft (1224) and the upper end of the plunger (1240) may be accommodated inside the shaft receiving portion (1251). The lower end of the shaft (1224) and the upper end of the plunger (1240) may come into contact with each other inside the shaft receiving portion (1251).

[0319] The filter coupling portion (1252) can be coupled to the lower side of the filter portion (1210) to support the filter portion (1210). For example, the filter coupling portion (1252) may be formed in an annular or cylindrical shape to allow air to pass through, and may be coupled to the lower end of the cylindrical filter portion (1210).

[0320] The filter coupling part (1252) can be coupled inside the main body housing (110). Additionally, the filter coupling part (1252) can be coupled with the dust separation part (130). Through this, the filter coupling part (1252) can stably support a plurality of parts inside the main body (100) of the vacuum cleaner (1).

[0321] A spoke (1253) can connect the shaft receiving portion (1251) and the filter coupling portion (1252). The spoke (1253) can be formed to extend radially from the shaft receiving portion (1251). For example, the spoke (1253) can be formed to extend radially outward from the outer surface of the shaft receiving portion (1251), then bent downward with a predetermined inclination, and then extended radially outward again to be connected to the filter coupling portion (1252). A plurality of spokes (1253) can be arranged along the circumferential direction centered on the shaft receiving portion (1251).

[0322]

[0323] Meanwhile, FIG. 18 shows a cross-sectional view of a vacuum cleaner according to a third embodiment of the present invention, FIG. 19 shows an enlarged view of the part in FIG. 18 where a filter is attached, and FIG. 20 shows a cross-sectional view of the vacuum cleaner according to the third embodiment of the present invention with the dust bin open.

[0324] Referring to FIGS. 18 to 20, a filter (200) according to a third embodiment of the present invention is described as follows.

[0325] Meanwhile, except for what is specifically explained in this embodiment to avoid redundant explanations, the structure and effect of the filter (200) according to one embodiment of the present invention are identical, so it may be used by reference.

[0326] In this embodiment, the filter (2200) includes a filter section (2210), a turbine section (2220), and a cleaning section (2230).

[0327] The filter section (2210) can filter out foreign substances from the air flowing into the suction motor (140) after passing through the dust separation section (130). For example, the filter section (210) may be a pre-filter.

[0328] The filter section (2210) may be formed in a cylindrical shape. For example, the filter section (2210) may have ring-shaped frames provided at both ends in the axial direction, and may further include a connecting frame that connects the frames.

[0329] The filter unit (2210) may be placed in the internal space of the main body housing (110). The filter unit (2210) may be placed above the dust separation unit (130). The filter unit (210) may be placed above the dust container (180). The filter unit (2210) may be placed below the filter cover (111).

[0330] The turbine section (2220) can be rotated by the flow of air. The turbine section (2220) includes a turbine plate (2221), a blade (2222), a shaft (2224), a guide pin (225), and a spring (2226).

[0331] The turbine plate (2221) may be formed in the shape of a disc. In this case, the turbine plate (2221) may be formed with a radial center protruding upward to form a step. Specifically, the turbine plate (2221) includes a valve portion (2221a) and a rotating portion (2221b). In this case, the valve portion (2221a) may be positioned radially inward from the rotating portion (2221b), and the valve portion (2221a) may be formed in a shape protruding upward from the rotating portion (2221b). The valve portion (2221a) and the rotating portion (2221b) may be formed to form a step.

[0332] The valve portion (2221a) may be formed in the shape of a disc. The diameter of the valve portion (2221a) may be formed to correspond to the diameter of the outside air inlet hole (112). The diameter of the valve portion (2221a) may be the same as the diameter of the outside air inlet hole (112).

[0333] The valve section (2221a) can open and close the outside air inlet hole (112). The valve section (2221a) can be inserted into the outside air inlet hole (112) according to the vertical movement of the turbine section (220). When the valve section (2221a) is inserted into the outside air inlet hole (112), the flow of air can be blocked. That is, the outside air inlet hole (112) can be sealed by the valve section (2221a).

[0334] Meanwhile, one side (upper side) of the valve part (2221a) can be exposed to the outside through the outside air inlet hole (112).

[0335] Additionally, a shaft (2224) may be formed protruding from the lower surface of the valve portion (2221a).

[0336] The rotating part (2221b) may be formed to extend radially outward from the valve part (2221a). The rotating part (2221b) may be formed to extend radially outward after being bent downward from the valve part (2221a).

[0337] A blade (2222) may be formed protrudingly on one side (upper side) of the rotating part (2221b).

[0338] The rotating part (2221b) can be rotated by the flow of air.

[0339] A filter unit (2210) may be attached to the other side (lower side) of the rotating part (2221b). The filter unit (2210) is fixed to the rotating part (2221b) and can rotate together with the rotating part (2221b) when the rotating part (2221b) rotates.

[0340] A plurality of blades (2222) may be formed protruding along the circumferential direction from one side (upper side) of the turbine plate (2221). Each blade (2222) may be formed protruding from one side (upper side) of the turbine plate (2221) in a shape having a predetermined curvature.

[0341] Air flow force can be applied to the blade (2222). The blade (2222) can receive air flow force and rotate together with the turbine plate (2221) with the shaft (2224) as the axis of rotation.

[0342] The shaft (2224) can provide a rotation axis for the turbine plate (2221). The shaft (2224) may be formed to protrude downward from the lower surface of the valve portion (2221a). The shaft (2224) may be formed to protrude from the radial center of the valve portion (2221a).

[0343] The shaft (2224) can be formed in the shape of a hollow cylinder.

[0344] A spring (2226) may be positioned between the cleaning section (2230) and the shaft (2224) to provide a restoring force. The spring (2226) may be positioned along a direction perpendicular to the turbine plate (2221). The spring (2226) may be positioned between the bearing section (2240), which will be described later, and the shaft (2224).

[0345] Through this, when the cleaning part (2230) moves upward, the spring (2226) can elastically support the shaft (2224) upward, and the shaft (2224) can rise along the bearing part (2240).

[0346] The cleaning section (2230) rotates relative to the filter section (2210) according to the rotation of the turbine section (2220) and can come into contact with the inner surface of the filter section (2210).

[0347] The cleaning unit (2230) may be disposed inside the main body housing (110). The cleaning unit (2230) includes a cleaning unit support (2231), a cleaning unit body (2232), a brush (2233), and a shaft support (2234).

[0348] The cleaning part support (2231) is formed in an annular or cylindrical shape and may be provided to be rotatable relative to the filter part (2210). The cleaning part support (2231) may be arranged to be movable up and down on the main body housing (110).

[0349] At this time, a stopper (113) that limits the range of movement of the cleaning part support member (2231) may be formed in the main body housing (110). That is, an upper stopper (113a) that limits the upward movement of the cleaning part support member (2231) and a lower stopper (113b) that limits the downward movement of the cleaning part support member (2231) may be formed inside the main body housing (110). Accordingly, the cleaning part support member (2231) can move up and down between the upper stopper (113a) and the lower stopper (113b).

[0350] Meanwhile, the cleaning unit support (2231) can be combined with the dust separation unit (130). The dust separation unit (130) can be combined with the lower side of the cleaning unit support (2231). Therefore, when the cleaning unit (2230) moves up and down, the dust separation unit (130) can also move up and down together.

[0351] The cleaning part body (2232) may be in the form of a cylinder extending along the axial direction from the radially inner end of the cleaning part support (2231). At this time, the cleaning part body (2232) may be disposed inside the filter part (2210).

[0352] The brush (2233) is coupled to the cleaning body (2232) and can be arranged along the axial direction on the outer surface of the cleaning body (2231). Multiple brushes (2233) can be arranged at predetermined angular intervals along the circumferential direction.

[0353] The brush (2233) may be composed of multiple bristle bristles. The brush (2233) can sweep away dust.

[0354] The brush (2233) can come into contact with the inner surface of the filter section (2210). Therefore, when the turbine section (2220) and the filter section (2210) are rotated, the brush (2233) can clean the inner surface of the filter section (2210).

[0355] The shaft support (2234) may be positioned on the top of the cleaning body (2231). The shaft support (2234) may be positioned at the radial center of the top surface of the cleaning body (2231) and may be combined with the bearing portion (2240) and the spring (2226) to support the shaft (2224). For example, the shaft support (2234) may be formed to protrude in a cylindrical shape from the top surface of the cleaning body (2231) and may be rotatably coupled to the bearing portion (2240).

[0356] The bearing portion (2240) may be positioned between the turbine portion (2220) and the cleaning portion (2230). The bearing portion (2240) may be coupled to the lower side of the turbine portion (2220). For example, a cylindrical receiving portion into which the bearing portion (2240) is inserted may be formed on the lower surface of the turbine portion (2220). Accordingly, the bearing portion (2240) may be inserted into and coupled to the turbine portion (2220). Meanwhile, a spring (2226) may be positioned between the bearing portion (2240) and the turbine plate (2221) so as to be coupled to the turbine plate (2226) so as to be movable along the axial direction.

[0357] Meanwhile, a shaft support member (2234) may be rotatably coupled to the lower side of the bearing member (2240). At this time, the shaft support member (2234) and the shaft (2224) may be arranged coaxially. Therefore, when the turbine member (2220) rotates, friction between the cleaning member (2230) and the bearing member (2240) can be prevented.

[0358]

[0359] Meanwhile, FIG. 21 shows a perspective view of a vacuum cleaner according to a fourth embodiment of the present invention, and FIG. 22 shows a cross-sectional view of FIG. 21.

[0360] Referring to FIGS. 21 and FIGS. 22, a filter according to the fourth embodiment of the present invention is described as follows.

[0361] Meanwhile, except for what is specifically described in this embodiment to avoid redundant explanations, the structure and effect of the filter according to the third embodiment of the present invention are identical, so it may be adopted.

[0362] In this embodiment, the main body housing (110) may be provided with a filter cover (111). The filter cover (111) is detachably coupled to the upper side of the main body housing (110) and can cover the upper side of the main body housing (110). For example, the filter cover (111) may be formed in the shape of a hollow disc. That is, an external air inlet hole (112) through which external air can be introduced may be formed at the radial center of the filter cover (111).

[0363] The outside air inlet hole (112) can be opened and closed by at least a part of the turbine section (3220). Specifically, the outside air inlet hole (112) can be opened and closed by a valve section (3221a) positioned at the top of the turbine section. That is, when the valve section (3221a) is lowered, the outside air inlet hole (112) is opened, and when the valve section (3221a) is raised, the outside air inlet hole (112) can be closed.

[0364] At this time, a guide vane (111a) may be formed on the radially outer side of the outside air inlet hole (112). Multiple guide vanes (111a) may be formed along the circumferential direction at the radially outer end of the outside air inlet hole (112).

[0365] Guide vanes (111a) can guide the flow of air. Specifically, each guide vane (111a) can be formed in a shape having a predetermined curvature. For example, each guide vane (111a) can be formed at regular angular intervals and can be formed in a shape having the same curvature.

[0366] At this time, since the guide vane (111a) is formed on the outside air inlet hole (112), a passageway through which air can flow can be formed between the plurality of guide vanes (111a).

[0367] Additionally, with the filter mounted on the main body housing (110), the guide vane (111a) can be positioned between the valve part (3221a) and the blade (3222), which will be described later.

[0368] A plurality of blades (3222) may be formed protruding along the circumferential direction on one side (upper side) of the rotating part (3221b) of the turbine plate. Each blade (3222) may be formed protruding from one side (upper side) of the rotating part (3221b) in a shape having a predetermined curvature. That is, the blade (3222) may be a curved surface formed protruding along a direction perpendicular to the rotating part (3221b).

[0369] Meanwhile, the direction in which the curved surface of each blade (3222) is formed may intersect with the direction of the flow path formed between the guide vanes (111a). For example, the direction of the flow path formed between the guide vanes (111a) may face the concave surface of the blade (3222). Thus, when the outside air inlet hole (112) is opened and air is introduced, it passes through the flow path between the guide vanes (111a) and then pressurizes the concave surface of the blade (3222).

[0370] Accordingly, according to the present embodiment, the rotational speed of the turbine section can be increased by increasing the hydraulic pressure that pressurizes the blade (3222).

[0371]

[0372] Meanwhile, FIG. 23 shows a perspective view of a filter in a vacuum cleaner according to the fifth embodiment of the present invention, and FIG. 24 shows an enlarged view of a part to which a filter is attached in a vacuum cleaner according to the fifth embodiment of the present invention.

[0373] Referring to FIGS. 23 and FIGS. 24, a filter according to the fifth embodiment of the present invention is described as follows.

[0374] Meanwhile, except for what is specifically described in this embodiment to avoid redundant explanations, the structure and effect of the filter according to the fourth embodiment of the present invention are identical, so it may be adapted.

[0375] As in the fourth embodiment of the present invention, when a guide vane (111a) is formed on the filter cover (111), the hydraulic pressure applied to the blade (4222) is increased, and the rotational speed of the rotating part (4221b) can be accelerated. In this case, the friction between the brush (4233) and the filter part (4210) is increased, and there is a risk that damage may occur to the brush (4233) or the filter part (4210).

[0376] In addition, there is a concern that noise and vibration may occur due to the high rotational speed of the turbine plate.

[0377] To solve this, the vacuum cleaner filter according to the present embodiment may further include an air resistance portion (4223) formed extending from the radially outer end of the rotating portion (4221b) of the turbine plate. At this time, a plurality of air resistance portions (4223) may be formed at predetermined angular intervals along the circumferential direction.

[0378] The air resistance section (4223) may be formed to extend outward from the radially outer end of the rotating section (4221b). In this case, the air resistance section (4223) may be in the form of a plate formed along the axial direction. Accordingly, when rotated with the shaft (4224) as the axis of rotation, the air resistance section (4223) may be positioned perpendicular to the tangential direction of the disc-shaped rotating section (4221b).

[0379] Therefore, the air resistance part (4223) is formed in the shape of a plate perpendicular to the direction of acceleration (direction of force) of the rotating part (4221b) and can generate air resistance in a direction that reduces acceleration.

[0380] Through this, it is possible to prevent the rotational speed of the turbine plate from increasing rapidly and to maintain the rotational speed of the turbine plate stably.

[0381]

[0382] Meanwhile, FIG. 25 shows a perspective view of a cleaning part in a vacuum cleaner according to the 6th embodiment of the present invention.

[0383] Referring to FIG. 25, a filter according to the sixth embodiment of the present invention is described as follows.

[0384] Meanwhile, except for what is specifically described in this embodiment to avoid redundant explanations, the structure and effect of the filter according to the third embodiment of the present invention are identical, so it may be adopted.

[0385] The cleaning unit according to the present embodiment is characterized by the brush (5233) being arranged at an angle.

[0386] The brush (5233) is positioned on the outer surface of the cleaning body (5232) formed in a cylindrical shape, and may be positioned along a direction intersecting the axial direction. That is, the brush (5233) may be positioned at an angle inclined with respect to the filter cover (111).

[0387] Therefore, the brush (5233) can come into oblique contact with the inner surface of the filter section.

[0388] Through this, the brush (5233) can sweep the inner surface of the filter section while moving dust (foreign matter) along the slope, thereby improving the dust removal capability compared to simply relying on the suction power of the dust collection motor (29) to discharge dust.

[0389]

[0390] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention and is not limited thereto. It is evident that modifications or improvements can be made by those skilled in the art within the technical scope of the present invention.

[0391] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

Claims

1. Cylindrical filter section; and A turbine section rotated by the flow of air; Includes, The above filter unit is, A filter for a vacuum cleaner characterized by being coupled to the turbine unit and rotating together with the turbine unit when the turbine unit rotates.

2. In Paragraph 1, The above turbine section is, Turbine plate formed in the shape of a disc; and A plurality of blades formed protruding along the circumferential direction from one side of the turbine plate; A vacuum cleaner filter containing 3. In Paragraph 2, The above turbine plate is, Valve portion formed in the shape of a disc; and A rotating part extending radially outward from the above valve part and having the blade formed thereon; A vacuum cleaner filter containing 4. In Paragraph 3, The above valve part is, A vacuum cleaner filter characterized by being formed with a step difference from the above-mentioned rotating part.

5. In Paragraph 3, The above rotating part is, A filter for a vacuum cleaner characterized in that the valve portion protrudes from one side and the filter portion is coupled to the other side.

6. In Paragraph 1, The above turbine section is, Air resistance sections formed by extending multiple times at predetermined angular intervals from the radially outer end of the turbine plate; A vacuum cleaner filter that further includes 7. In Paragraph 2, The above turbine section is, A shaft formed protruding from the radial center of the other side of the turbine plate; A vacuum cleaner filter containing 8. In Paragraph 7, The above shaft is, A vacuum cleaner filter characterized by being formed in a hollow shape.

9. In Paragraph 1, The above filter unit is, Filter body for filtering foreign substances; Annular frames provided at both axial ends of the filter body; and A plurality of vertical frames connected to the above-mentioned annular frame and arranged along the circumferential direction; A vacuum cleaner filter containing 10. In Paragraph 9, The above pair of annular frames is, An upper annular frame disposed on the upper side of the filter body and coupled to the turbine unit; and A lower annular frame positioned on the lower side of the filter body; Includes, A filter for a vacuum cleaner characterized in that the outer diameter of the upper annular frame is larger than the outer diameter of the lower annular frame.

11. In Paragraph 9, The above pair of annular frames is, An upper annular frame disposed on the upper side of the filter body and coupled to the turbine unit; and A lower annular frame positioned on the lower side of the filter body; Includes, A filter for a vacuum cleaner characterized in that the axial thickness of the upper annular frame is greater than the axial thickness of the lower annular frame.

12. Filter body for filtering foreign substances; A pair of annular frames provided at both ends of the filter body; and Vertical frames arranged radially outward of the filter body, connecting the pair of annular frames, and arranged in multiple numbers along the circumferential direction; Includes, The inner surface of the filter body above is, A filter for a vacuum cleaner characterized by contacting a brush when combined with a vacuum cleaner.

13. In Paragraph 12, The above filter body is, A filter for a vacuum cleaner characterized in that when air is introduced from the outer surface while connected to the vacuum cleaner, the brush rotates and friction occurs.

14. Cylindrical filter section; A turbine section rotated by the flow of air; and A cleaning part that rotates relative to the filter part according to the rotation of the turbine part and contacts the inner surface of the filter part; A vacuum cleaner filter containing 15. In Paragraph 14, The above turbine section is, A filter for a vacuum cleaner characterized by being connected to and rotating together with the filter part or the cleaning part.

16. In Paragraph 14, The above turbine section is, Disc-shaped turbine plate; A shaft formed to protrude from the center of the turbine plate in the direction of the cleaning section; A vacuum cleaner filter containing 17. In Paragraph 14, The above shaft is, A filter for a vacuum cleaner characterized by being movably coupled to the above-mentioned cleaning part along the axial direction.

18. In Paragraph 14, The above turbine section is, A guide pin that guides the axial movement of the above shaft; Includes more, The above guide pin is, A filter for a vacuum cleaner characterized in that one axial end is inserted into the hollow shaft and the other axial end is in contact with the cleaning part.

19. In Paragraph 14, The above turbine section is, A spring disposed between the cleaning part and the shaft to provide a restoring force; A vacuum cleaner filter that further includes 20. In Paragraph 15, The above turbine section is, The above cleaning part is coupled so as to be movable along the axial direction, and A filter for a vacuum cleaner characterized in that the rotation of the turbine part stops when the cleaning part is pressed axially toward the turbine part.

21. In Paragraph 14, The above cleaning unit is, A cleaning part body formed in an annular shape and configured to rotate relative to the filter part; A cleaning section column extending along the axial direction from the cleaning section body and disposed inside the filter section; and A brush coupled to the column of the cleaning unit and arranged along the axial direction of the cleaning unit body to contact the inner surface of the filter unit; A vacuum cleaner filter containing 22. In Paragraph 14, The above turbine section is, Turbine plate formed in the shape of a hollow disc; A plurality of blades formed protruding along the circumferential direction from one side of the turbine plate; A turbine cover coupled to one side of the turbine plate, having a plurality of slits formed therein through which the blade passes; A shaft formed to protrude and extend from the center of the turbine cover; A vacuum cleaner filter containing 23. In Paragraph 22, The above cleaning unit is, A cleaning section column extending along the axial direction from the turbine plate and disposed inside the filter section; and A brush coupled to the column of the cleaning unit and arranged along the axial direction to contact the inner surface of the filter unit; A vacuum cleaner filter containing 24. In Paragraph 22, A plunger that reciprocates the above shaft along the axial direction; A vacuum cleaner filter that further includes 25. In Paragraph 23, A support member on which the other axial side of the filter member is seated and which rotatably supports the cleaning member column; A vacuum cleaner filter that further includes

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