WO2024080522A1

WO2024080522A1 - Vacuum cleaner

Info

Publication number: WO2024080522A1
Application number: PCT/KR2023/011865
Authority: WO
Inventors: 최지원; 강훈; 김동준; 김현철; 이한샘
Original assignee: 삼성전자 주식회사
Priority date: 2022-10-12
Filing date: 2023-08-10
Publication date: 2024-04-18
Also published as: KR20240050871A

Abstract

A vacuum cleaner according to an embodiment of the present disclosure may comprise a drum brush formed to rotate about a rotary shaft. The vacuum cleaner may comprise a drum brush housing including an accommodation portion formed to at least partially surround the drum brush. The vacuum cleaner may comprise a vacuum suction port arranged on the outer side of the accommodation portion of the drum brush housing. The vacuum cleaner may comprise at least one scrapper structure which is arranged in the accommodation portion and configured to at least partially collide with the drum brush when the drum brush rotates. The scrapper structure may have a stopper protrusion extending toward the outer portion of the accommodation portion.

Description

Vacuum cleaner

This disclosure relates to a vacuum cleaner having a structure for preventing or removing entanglement of foreign substances, such as hair, in a suction head in which a rotating drum brush is housed.

A vacuum cleaner is a home appliance that includes a suction motor that generates suction power, a suction head that sucks air and foreign substances from the floor through the suction power of the suction motor, and a dust bin that stores foreign substances sucked in through the suction head.

The suction head may include a brush housing having a suction port, and a drum brush rotatably disposed on the brush housing. A cleaning member such as a bristle may be disposed on the outer peripheral surface of the drum brush. When cleaning using the vacuum cleaner, the cleaning member rotates and sweeps the floor to guide foreign substances, such as hair, present on the floor to the suction port.

When cleaning using a vacuum cleaner, hair or other long foreign substances among foreign substances introduced into the suction head due to the rotation of the drum brush may become entangled or entangled in the cleaning member of the drum brush and may not flow into the suction port. . In this case, hair, etc. tangled in the drum brush may impede the rotation of the drum brush, thereby reducing the cleaning performance of the vacuum cleaner, or increase the load applied to the drive motor connected to the drum brush, thereby shortening the life of the drive motor. It can be shortened.

Various embodiments of the present disclosure provide a vacuum cleaner configured to prevent hair from becoming entangled in the drum brush through a scraper structure formed on the inner peripheral surface of the drum brush housing and to remove hair entangled in the bristles of the drum brush, etc. You can.

A vacuum cleaner according to an embodiment of the present disclosure may include a drum brush configured to rotate about a rotation axis. The vacuum cleaner may include a drum brush housing including a receiving portion configured to surround at least a portion of the drum brush. The vacuum cleaner may include a vacuum suction port disposed outside the receiving portion of the drum brush housing. The vacuum cleaner may include at least one scraper structure disposed in the receiving portion and configured to at least partially collide with the drum brush when the drum brush rotates. The scraper structure may have a locking protrusion extending toward the outside of the receiving portion.

In one embodiment, the receiving portion of the drum brush housing may have a first end area and a second end area on both sides along the rotation direction of the drum brush. The second end region may be disposed closer to the vacuum suction port than the first end region. The scraper structure may include a plurality of scraper members spaced apart from each other along the axial direction of the rotation shaft in the second end area of the drum brush housing.

In one embodiment, the scraper structure may include a plurality of scraper members spaced apart from each other. Each of the scraper members may have an embossed structure extending inside the accommodating portion along an inner peripheral surface of the accommodating portion to surround at least a portion of the drum brush. The embossed structure protrudes from the inner peripheral surface of the receiving portion and has a scraper surface facing the drum brush, and one end of the scraper surface may form the locking protrusion, respectively.

In one embodiment, the drum brush may include first and second ends on both sides along the axial direction of the rotation axis, and a central portion between the first and second ends. The drum brush may include one or more brush structures disposed on a surface of the drum brush. In each of at least some of the scraper members among the plurality of scraper members, the embossed structure may extend along the inner peripheral surface of the receiving portion in a direction determined according to the arrangement form of the brush structure from the one end including the locking protrusion. You can.

In one embodiment, each of the brush structures may extend from the first end of the drum brush through the central portion to the second end on the surface of the drum brush, forming a spiral shape. In each of the at least some scraper members among the plurality of scraper members, the embossed structure has a plane perpendicular to the rotation axis that approaches the second end of the drum brush as it moves away from the one end including the catching protrusion. It may extend in a direction forming a predetermined angle with respect to .

In one embodiment, the plurality of scraper members may include one or more scraper members disposed closer to the second end than the at least some of the scraper members. The one or more scraper members disposed adjacent to the second end may extend in a different direction and length from each of the at least some scraper members.

In one embodiment, the brush structure includes a first brush extending in a spiral shape from the first end of the drum brush to the central portion, and a first brush extending in a spiral shape from the second end of the drum brush to the central portion. It may include a second brush extending and forming a shape. In each of the at least some of the plurality of scraper members, the embossed structure may extend in a direction closer to the central portion of the drum brush as the distance from the one end including the catching protrusion increases.

In one embodiment, the at least some of the scraper members may include a plurality of first-second scraper members and a plurality of first-second scraper members arranged symmetrically with respect to the central portion.

In one embodiment, the plurality of scraper members may include one or more scraper members disposed closer to the central portion than the at least some of the scraper members. The one or more scraper members disposed close to the central portion may extend in a direction and length different from each of the at least some scraper members.

In one embodiment, the receiving portion of the drum brush housing may have first end regions on both sides along the rotation direction of the drum brush, and a second end region disposed closer to the vacuum suction port than the first end region. there is. The second end area may have a first area closest to the vacuum suction port, a second area disposed on both sides of the first area along the rotation axis, and a third area. The plurality of scraper members may include one or more second scraper members disposed in the first area, and one or more first scrapers disposed in the second area or the third area and having a different shape from the one or more scraper members. May include absences.

In one embodiment, two or more first scraper members may be disposed in each of the second area and the third area. Each of the two or more first scraper members may extend toward the first area on an inner peripheral surface of the receiving portion facing the drum brush as the distance from the one end including the locking protrusion increases.

In one embodiment, the one or more first scraper members may include a plurality of 1-1 scraper members and a plurality of 1-2 scraper members arranged symmetrically with respect to the first area.

In one embodiment, two or more second scraper members may be disposed in the first area. Each of the two or more second scraper members may extend along the rotation direction of the drum brush on an inner peripheral surface of the receiving portion facing the drum brush.

In one embodiment, the two or more second scraper members include a 2-1 scraper member disposed close to the outside of the accommodating portion, and a 2-1 scraper member disposed closer to the outside of the accommodating portion, and a 2-1 scraper member disposed closer to the inside of the accommodating portion than the 2-1 scraper member along the inner peripheral surface of the accommodating portion. It may include a 2-2 scraper member disposed. The 2-1 scraper member and the 2-2 scraper member may be disposed at different positions along the extension direction of the rotation axis.

In one embodiment, the receiving portion of the drum brush housing may have first end regions on both sides along the rotation direction of the drum brush, and a second end region disposed closer to the vacuum suction port than the first end region. there is. The drum brush may include first and second ends on both sides along the axial direction of the rotation axis. The plurality of scraper members include a plurality of first scrapers that are spaced apart along the axial direction of the rotation axis on the second end area and extend toward the second end as the distance from the one end including the locking protrusion increases. It may include a member and one or more second scraper members disposed closer to the second end than an area where the plurality of first scraper members are disposed and extending along the rotation direction of the drum brush.

In the vacuum cleaner according to one embodiment, the scraper structure disposed on the inner peripheral surface of the drum brush housing spreads the bristles of the drum brush when the drum brush rotates and removes hair, such as tangled between the bristles of the drum brush. By removing foreign substances or preventing hair from becoming tangled in the bristles of the drum brush, the cleaning performance of the vacuum cleaner can be improved and the load applied to the drive motor can be reduced.

Effects that can be obtained from the exemplary embodiments of the present disclosure can be clearly derived and understood by those skilled in the art from the following description. That is, unintended effects resulting from implementing the exemplary embodiments of the present disclosure may also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

1 is a perspective view of a vacuum cleaner according to an embodiment of the present disclosure.

Figure 2 is a perspective view of the suction head shown in Figure 1.

3 is a bottom view of a suction head showing a state in which a drum brush having a unidirectional cleaning member is mounted, according to an embodiment of the present disclosure.

FIG. 4 is a bottom view of the suction head showing a state in which the drum brush shown in FIG. 3 is separated.

Figure 5 is a cross-sectional view of the suction head taken along line A-A in Figure 4.

FIG. 6 is an enlarged view of portion I of FIG. 4 for explaining a scraper structure according to an embodiment of the present disclosure.

FIG. 7 is an enlarged view of part II of FIG. 4 for explaining a scraper structure according to an embodiment of the present disclosure.

Figure 8 is a cross-sectional view of the suction head showing the arrangement structure of the scraper member, in one embodiment of the present disclosure.

FIG. 9 is an exemplary diagram showing an operation of preventing/removing foreign matter entanglement of a vacuum cleaner according to an embodiment of the present disclosure.

Figure 10 is a bottom view of a suction head showing a state in which a drum brush having a cleaning member of a bidirectional arrangement structure is mounted, according to an embodiment of the present disclosure.

FIG. 11 is a bottom view of the suction head showing a state in which the drum brush shown in FIG. 10 is separated.

Figure 12 is a cross-sectional view of the suction head taken along line B-B in Figure 11.

FIG. 13 is an enlarged view of portion III of FIG. 11 for explaining a scraper structure according to an embodiment of the present disclosure.

Figure 14 is a cross-sectional view of the suction head showing the arrangement structure of the scraper member, in one embodiment of the present disclosure.

Hereinafter, with reference to the drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily practice them. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. In relation to the description of the drawings, identical or similar reference numerals may be used for identical or similar components. Additionally, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

Referring to FIG. 1, in one embodiment, the vacuum cleaner 1 includes a cleaner main body 10, a dust bin 20 that accommodates foreign substances such as dust, and an extension tube 30 detachably coupled to the cleaner main body 10. ), a suction head 40 that suctions foreign substances, and a battery 50.

According to one embodiment, the cleaner main body 10 may include a battery mounting part 12, a handle part 14, a control panel 16, a suction motor (not shown), and a filter part 18.

According to one embodiment, the battery mounting unit 12 may be configured to mount and secure the battery 50 to the cleaner main body 10. For example, the battery mounting unit 12 may be configured to mount the battery 50 in a vertical direction. The battery mounting portion 12 may be formed, for example, at the rear portion of the cleaner main body 10.

According to one embodiment, the handle portion 14 may be configured to allow a user to hold the vacuum cleaner 1 and manipulate the vacuum cleaner 1 . For example, the user can hold the handle portion 14 and then move the vacuum cleaner 1 in the front and back directions to clean the surface to be cleaned (eg, the floor).

According to one embodiment, the control panel 16 may be provided to receive various commands related to the operation of the vacuum cleaner 1 from the user. Control panel 16 may include input devices such as buttons, switches, or touch panels, for example. The control panel 16 may include, for example, a power button (not shown) that controls turning on or off the vacuum cleaner 1. The control panel 16 may include, for example, function buttons (not shown) to change the operating mode of the vacuum cleaner 1. The function button may include, for example, a button for changing the cleaning mode consisting of normal mode/strong mode/ultra powerful mode that determines the suction strength (or cleaning power) of the vacuum cleaner, and may be operated by the user. It can be used to adjust the suction power of the vacuum cleaner (1). The suction strength of the vacuum cleaner can be set to be strong in the following order: ultra-strong mode, strong mode, and normal mode.

According to one embodiment, the filter unit 18 can filter foreign substances such as ultrafine dust that are not filtered in the dust bin 20. The filter unit 18 may, for example, accommodate a filter member (not shown) therein. The filter member (not shown) may include, for example, a Hepa Filter, but the type of filter is not limited thereto.

According to one embodiment, a suction motor (not shown) may provide suction force to the vacuum cleaner 1 so that foreign substances such as dust or hair present on the floor are sucked into the vacuum cleaner 1. In one embodiment, the vacuum cleaner 1 forms a rotating airflow (e.g., cyclone airflow) inside the dust bin 20 through the suction motor (not shown), and air sucked into the dust bin 20 and foreign substances can be separated. For example, the air sucked into the dust bin 20 may be separated from foreign substances by centrifugal force caused by the rotating air flow and discharged to the outside of the vacuum cleaner 1. For example, foreign substances sucked into the dust bin 20 may be separated from air and collected inside the dust bin 20 by the centrifugal force of the rotating air current.

According to one embodiment, the dust bin 20 may be configured to accommodate foreign substances sucked from the floor surface when the vacuum cleaner 1 is operated. In one embodiment, the dust bin 20 may be configured to collect foreign matter, such as dust, filtered out from the air flowing in through the suction head 40. In one embodiment, the dust bin 20 may be detachably coupled to the cleaner main body 10. In one embodiment, the dust bin 20 may be provided to have a substantially cylindrical shape. In one embodiment, the dust bin 20 may be made of a transparent material so that the user can check the amount of dust collected in the dust bin 20 from the outside.

According to one embodiment, the extension pipe 30 may form a flow path through which air or foreign substances introduced from the suction head 40 flow. In one embodiment, the extension tube 30 may be detachably coupled to the cleaner body 10, the dust bin 20, and/or the suction head 40. For example, one end of the extension tube 30 may be pivotally connected to the suction head 40 so that the suction head 40 can jointly move with respect to the extension tube 30 . In one embodiment, the extension tube 30 may have a substantially hollow cylindrical shape. In one embodiment, the extension tube 30 may be provided to extend in the vertical direction. For example, the extension pipe 30 may have a double pipe shape whose length varies in the vertical direction depending on the user's manipulation.

According to one embodiment, the suction head 40 may be configured to contact the floor while the vacuum cleaner 1 is operating and to suction air and dust from the floor into the interior of the vacuum cleaner 1. In one embodiment, the suction head 40 may be configured to be rotatable in the up and down or left and right directions. In one embodiment, the suction head 40 may be removably coupled to the extension tube 30.

According to one embodiment, the battery 50 may be provided to supply power to components necessary for the operation of the vacuum cleaner 1, such as a suction motor. In one embodiment, the battery 50 may be detachably mounted on the cleaner body 10. The battery 50 may be coupled to the cleaner body 10 in a vertical direction, for example, through the battery mounting portion 12 of the cleaner body 10. In one embodiment, the battery 50 may be provided as a rechargeable secondary battery. In one embodiment, the battery 50, although not shown, may be electrically connected to a charging terminal provided on a vacuum cleaner holder or docking station. In this case, the battery 50 can be charged by receiving power from a charging terminal provided in a vacuum cleaner stand or docking station.

Figure 2 is a perspective view of the suction head shown in Figure 1. 3 is a bottom view of a suction head showing a state in which a drum brush having a unidirectional cleaning member is mounted, according to an embodiment of the present disclosure.

2 and 3, in one embodiment, the suction head 40 may include a brush housing 41, a drum brush 42, a tube connection 43, or a

side cover

44, 45. You can.

According to one embodiment, the brush housing 41 may form the overall appearance of the suction head 40. In one embodiment, the brush housing 41 may be opened at least in part to form an intake port (not shown). During cleaning using the vacuum cleaner 1, foreign substances present on the floor may be sucked into the suction head 40 through the suction port (not shown).

According to one embodiment, the drum brush 42 may be rotatably disposed within the brush housing 41. In one embodiment, the drum brush 42 may be configured to rotate about a rotation axis extending along the longitudinal direction of the drum brush 42. For example, the drum brush 42, although not shown in the drawing, is axially connected to a drive motor (not shown) provided inside the suction head 40, and can rotate by receiving driving force from the drive motor.

According to one embodiment, the drum brush 42 may include a drum 421 and a brush 422.

According to one embodiment, the drum 421 may form the overall appearance of the drum brush 42. The drum 421 may have a substantially cylindrical shape, for example. For example, the drum 421 may be formed to extend in the axial direction (or longitudinal direction) of the drum brush 42 . In one embodiment, both ends of the drum 421 may be mounted on the suction head 40 through support grooves (4111 and 4112 in FIG. 5) provided in the drum receiving portion 411 of the brush housing 41. In this case, either one end or the other end of the drum 421 may be connected to the drive motor through the support groove (4111, 41112 in FIG. 5).

According to one embodiment, the brush 422 may be disposed on the outer peripheral surface of the drum 421. In one embodiment, a plurality of brushes 422 may be provided. In one embodiment, each of the plurality of brushes 422 is connected to the drum brush from one end 42a of the drum brush 42 along the axial direction (or longitudinal direction) of the drum 421 on the outer peripheral surface of the drum 421. It may extend to have a spiral shape through the central portion 42c of 42 (e.g., the area between one end 42a and the other end 42b) to the other end 42b of the drum brush 42. . Each of the plurality of brushes 422 may be spaced apart at predetermined intervals along the outer circumference of the drum 421. In one embodiment, each of the plurality of brushes 422 may include a plurality of cleaning members. The cleaning member may be made of fabric, rubber, carbon, nylon, or bristle alone or in combination.

According to one embodiment, the pipe connection part 43 may connect the brush housing 41 and the extension pipe 30 to each other. For example, one end of the pipe connection part 43 may be connected to the brush housing 41 and the other end may be connected to the extension pipe 30 . In one embodiment, the tube connection portion 43 may be detachably coupled to the extension tube 30. In one embodiment, the pipe connection portion 43 may be configured to allow free movement of the suction head 40 when the vacuum cleaner 1 is operated.

According to one embodiment, the side covers 44 and 45 may be provided to form the side exterior of the suction head 40. In one embodiment, the side covers 44 and 45 include a first side cover 44 that is coupled to one side of the brush housing 41 to form one side of the suction head 40, and the brush housing 41. It may include a second side cover 45 that is coupled to the other side of the suction head 40 to form the other side of the suction head 40. In one embodiment, the first side cover 44 may be formed integrally with the suction head 40, but is not limited thereto and may be detachably coupled to the suction head 40. In one embodiment, the second side cover 45 may be detachably coupled to the suction head 40, but the present invention is not limited thereto and may be formed integrally with the suction head 40.

According to one embodiment, the suction head 40 may further include a detachment button 46 for separating the side covers 44 and 45. In one embodiment, the detachment button 46 may be disposed on the upper surface of the brush housing 41. The detachment button 46 may be, for example, of a push button type, but is not limited thereto. In one embodiment, the detachment button 46 may be provided so that the second side cover 45 is detachably coupled to the brush housing 41, as shown in FIG. 2, but is not limited thereto, and may be used in some embodiments. In the example, the detachment button 46 may be configured so that the first side cover 44 is detachably coupled to the brush housing 41.

According to one embodiment, the brush housing 41 includes a drum receiving portion 411 that accommodates the drum brush 42, a scraper 412 that removes foreign substances such as hair entangled in the drum brush 42, and a suction head ( 40) It may include a dust guide part 413 that guides foreign substances introduced inside to the extension tube 30, and a coupling part 414 that is detachably coupled to the tube connection part 43.

According to one embodiment, the drum accommodating portion 411 may be provided to surround at least a portion of the drum brush 42 and accommodate the drum brush 42 . The drum receiving portion 411, for example, may be configured to have a concave shape corresponding to at least a portion of the shape (e.g., a cylindrical shape) of the drum brush 42 (e.g., a portion along the outer periphery of the cylindrical shape). . In one embodiment, the drum receiving portion 411 may have a first end region 411a and a second end region 411b on both sides along the rotation direction of the drum brush 42, respectively. For example, if the drum receiving portion 411 is cut generally along the longitudinal direction and has a hollow half-cylindrical shape to accommodate a portion along the outer circumference of the cylindrical shape, the drum receiving portion 411 is cut in the longitudinal direction. It may have a first end area 411a and a second end area 411b arranged along the surface. The second end area 411b may be one end toward the vacuum suction port 414h, which may be located outside the drum receiving portion 411. In such a case, the second end area 411b may be disposed closer to the vacuum suction port 414h than the opposite first end area 411a.

According to one embodiment, the scraper 412 may be disposed on the inner peripheral surface of the brush housing 41. In one embodiment, the scraper 412 may be located in the second end area 411b adjacent to the vacuum suction port 414h among the various ends 411a and 411b of the drum receiving portion 411. In one embodiment, the scraper 412 may be configured to contact or collide with the drum brush 42 when the drum brush 42 rotates to remove foreign substances, such as hair, entangled in the drum brush 42 . The specific structure of the scraper 412 will be described later with reference to FIGS. 6 and 7.

According to one embodiment, the dust guide unit 413 may be configured to guide foreign substances introduced into the suction head 40 to the extension tube 30 when the drum brush 42 rotates. In one embodiment, the dust guide portion 413 may be located on the rear side of the drum receiving portion 411. In one embodiment, the dust guide portion 413 is recessed inside (e.g., the upper side) of the brush housing 41 and forms a dust passage through which foreign substances introduced from the drum receiving portion 411 and/or the bottom surface flow. can be formed. In one embodiment, the dust guide portion 413 includes a first dust guide 413a or the first dust guide 413a extending along the rotation axis direction (or the longitudinal direction of the drum brush 42) from the outside of the drum receiving portion 411. 1 It may include a second dust guide 413b that intersects the dust guide 413a and extends to a vacuum inlet 414h to be described later. In one embodiment, the second dust guide 413b may be configured so that one end crosses vertically at the center of the first dust guide 413a. In one embodiment, the other end of the second dust guide 413b may communicate with the vacuum suction port 414h. In this case, the second dust guide 413b fluidly connects the first dust guide 413a and the vacuum inlet 414h, and directs foreign substances introduced into the first dust guide 413a to the vacuum inlet 414h. I can guide you. In one embodiment, the second dust guide 413b may be recessed so that its depth is deeper than that of the first dust guide 413a.

According to one embodiment, the guide coupling portion 414 may be configured to be detachable from the pipe connecting portion 43. In one embodiment, the guide coupling part 414 may include a vacuum suction port 414h through which foreign substances guided by the dust guide part 413 pass. The vacuum suction port 414h may be disposed outside the drum receiving portion 411 of the drum brush housing 41.

Figure 4 is a bottom view of the suction head with the drum brush shown in Figure 3 removed. Figure 5 is a cross-sectional view of the suction head taken along line A-A in Figure 4.

Referring to FIGS. 4 and 5 , in one embodiment, the scraper 412 may include a plurality of

scraper members

4121 and 4122 spaced apart from each other on the inner peripheral surface of the drum receiving portion 411. In one embodiment, each of the plurality of

scraper members

4121 and 4122 may be arranged side by side in one end area (e.g., the second end area 411b) of the drum receiving portion 411, and the drum brush 42 ) may be formed to extend from one end area to the inside of the drum accommodating portion 411 along the inner peripheral surface of the drum accommodating portion 411 to surround at least a portion of the drum accommodating portion 411.

In one embodiment, the scraper 412 may include a first scraper member 4121 or a second scraper member 4122.

In one embodiment, the first scraper member 4121 may be provided in plural pieces. In one embodiment, each of the plurality of first scraper members 4121 may extend along the inner peripheral surface of the drum receiving portion 411 corresponding to the arrangement shape of the brush 422 of the drum brush 42.

For example, when the plurality of brushes 422 of the drum brush 42 extend in a spiral shape in one direction on the drum 421 (e.g., refer to the spiral shape in FIG. 3), the inside of the drum receiving portion 411 When viewed in a direction perpendicular to the rotation axis of the drum brush 42, the first scraper member 4121 has one end area (e.g., a second end area) of the drum receiving portion 411 where the first scraper member 4121 is disposed. As it moves away from the end area 411b and moves toward the inside of the receiving portion 411, it may extend in a direction forming a predetermined inclination (or angle) with respect to a plane perpendicular to the rotation axis of the drum brush 42.

The first scraper member 4121 is, for example, from one end (e.g., second end area 411b) of the drum receiving part 411 to the other end (e.g., first end area) of the drum receiving part 411. It may extend in a diagonal direction (or spiral direction) along the inner peripheral surface of the drum receiving portion 411 toward (411a)).

As shown in FIG. 5, when the inside of the drum receiving portion 411 is viewed in a direction perpendicular to the rotation axis of the drum brush 42, the first scraper member 4121 according to one embodiment is only as an example. As shown, it may extend along the inner peripheral surface of the drum receiving portion 411 from the 1 o'clock direction to the 7 o'clock direction, but is not limited to this. In contrast, when the drum receiving portion 411 is viewed in a direction perpendicular to the rotational axis of the drum brush 42, the first scraper member 4121 according to some embodiments is positioned in the 11 o'clock direction, as shown only as an example. It may extend along the inner peripheral surface of the drum receiving portion 411 in the 5 o'clock direction.

In this case, when the first scraper member 4121 and the drum brush 42 contact or collide when the drum brush 42 rotates, the plurality of cleaning elements provided on the drum brush 42 are cleaned by the first scraper member 4121. As the space between the members widens, the arrangement of the cleaning members becomes disorganized, thereby preventing hair from becoming tangled in the drum brush 42 when cleaning the vacuum cleaner 1, or removing hair tangled in the drum brush.

According to one embodiment, the second scraper member 4122 may be disposed at one edge of the drum receiving portion 411. The second scraper member 4122 may be disposed, for example, on the inner peripheral surface of the drum receiving portion 411 adjacent to the second end 42b of the drum brush 42.

FIG. 6 is an enlarged view of portion I of FIG. 4 for explaining a scraper structure according to an embodiment of the present disclosure. FIG. 7 is an enlarged view of portion II of FIG. 4 for explaining a scraper structure according to an embodiment of the present disclosure.

In one embodiment, the plurality of scraper members protrude from the inner peripheral surface of the drum receiving portion 411 and may have an embossed structure configured to have

scraper surfaces

41211 and 41221 facing the drum brush 42.

Each of the

scraper members

4121 and 4122 may, for example, be formed to protrude from the inner peripheral surface of the drum receiving portion 411 toward the drum brush 42 at a predetermined height. The predetermined height may be set to a height at which at least a portion of the

scraper members

4121 and 4122 can contact the drum brush 42.

Referring to FIG. 6 , in one embodiment, the first scraper member 4121 may be provided so that one surface 41211 facing the drum brush 42 has a predetermined curvature. One surface 41211 of the first scraper member 4121 may have, for example, a curvature corresponding to the drum brush 42, but is not limited thereto.

According to one embodiment, a first scraper protrusion 41212 extending outwardly of the brush housing 41 may be formed on one end of the first scraper member 4121. In one embodiment, a chamfered tip 41212c may be formed on at least one side of the first scraper protrusion 41212. In this case, when the first scraper member 4121 and the drum brush 42 contact or collide when the drum brush 42 rotates, the plurality of cleaning members provided on the drum brush 42 by the tip portion 4121c The gap can unfold smoothly.

According to one embodiment, the first scraper member 4121 may include a first catching groove 41213 in which foreign substances such as hair are caught when the drum brush 42 rotates. In one embodiment, the first locking groove 41213 may be formed by being recessed to a predetermined depth inside the drum receiving portion 411. For example, the first locking groove 41213 may be recessed in the rotation direction of the drum brush 42. In one embodiment, the first locking groove 41213 is adjacent to the first scraper protrusion 41212 and may be located behind the first scraper protrusion 41212. In one embodiment, the first scraper protrusion 41212 and the first locking groove 41213 may be formed to have a predetermined level difference.

Referring to FIG. 7, in one embodiment, the second scraper member 4122 may be composed of at least two or more members. In one embodiment, the second scraper member 4122 may be configured to have a different shape from the first scraper member 4121. In one embodiment, the second scraper member 4122 may include a 2-1 scraper member 4122a or a 2-2 scraper member 4122b.

In one embodiment, the 2-1 scraper member 4122a and the 2-2 scraper member 4122b may be disposed at different positions along the rotation axis direction of the drum brush 42. The 2-1 scraper member 4122a and the 2-2 scraper member 4122b are, for example, when looking at the second scraper member 4122 in a direction perpendicular to the rotation axis of the drum brush 42, the drum They may be arranged to be spaced apart at predetermined intervals in the up, down, left and right directions (or diagonal direction) on the inner peripheral surface of the receiving portion 411.

In one embodiment, the 2-1 scraper member 4122a and the 2-2 scraper member 4122b may be configured to substantially correspond in terms of operation, structure, and/or shape. Hereinafter, for convenience of explanation, the description will focus on the 2-1 scraper member 4122a, and the description of the 2-1 scraper member 4122a may be equally applied to the 2-2 scraper member 4122b. .

According to one embodiment, the 2-1 scraper member 4122a may be provided so that one surface 41221 facing the drum brush 42 has a predetermined curvature. For example, one surface 41221 of the 2-1 scraper member 4122a may have a curvature corresponding to the drum brush 42, but is not limited thereto.

According to one embodiment, the 2-1 scraper member 4122a prevents foreign substances such as hair from becoming tangled on one edge of the drum receiving portion 411 when the drum brush 42 rotates, or removes the tangled foreign substances. It can be configured to do so.

According to one embodiment, a second scraper protrusion 41222 extending outwardly of the brush housing 41 may be formed on one end of the 2-1 scraper member 4122a.

According to one embodiment, the 2-1 scraper member 4122a may include a second catching groove 41223 in which foreign substances such as hair are caught when the drum brush 42 rotates. In one embodiment, the second locking groove 41223 may be formed by being recessed to a predetermined depth inside the drum receiving portion 411. The second locking groove 41223 may be, for example, recessed in the rotation direction of the drum brush 42. In one embodiment, the second locking groove 41223 is adjacent to the second scraper protrusion 41222 and may be located behind the second scraper protrusion 41222. In one embodiment, the second scraper protrusion 41222 and the second locking groove 41223 may be formed to have a predetermined level difference.

The first scraper member 4121-1 may be configured to correspond to the operation, structure, and/or shape of the above-described first scraper member 4121, except for the arrangement form.

Unlike the plurality of first scraper members 4121 shown in FIG. 5, the plurality of first scraper members 4121-1 shown in FIG. 8 are when viewed in a direction perpendicular to the rotation axis of the drum brush 42. , the drum brush 42 such that the distance between one end adjacent to the second end area 411b of the drum accommodating portion 411 and the second end 411b of the drum accommodating portion 411 is alternately closer or farther apart. They may be arranged to be spaced apart from each other on the inner peripheral surface of the drum receiving portion 411 along the direction of the rotation axis.

Figure 9 is an exemplary diagram showing the prevention/removal of tangles in a drum brush, according to an embodiment of the present disclosure.

Figure 9 (a) is a diagram showing a foreign matter such as hair entangled in the drum brush 42 colliding with the scraper 412 member provided in the drum receiving portion 411 when the drum brush 42 rotates. FIG. 9(b) is a diagram showing the hair separated by the scraper 412 member flowing into the vacuum suction port 414h in the state after FIG. 9(a).

Referring to (a) of FIG. 9, when the drum brush 42 rotates, foreign substances such as hair tangled in the cleaning member of the drum brush 42 are removed from the scraper 412 (e.g., the first scraper member 4121 or the first scraper member 4121). 2 may contact or collide with the scraper member 4122).

Specifically, when the drum brush 42 rotates, the scraper protrusion (e.g., the first scraper protrusion 41212 or the second scraper protrusion 41222) of the scraper 412 provided in the drum receiving portion 411 moves the rotating drum. It is inserted between a plurality of cleaning members provided on the brush 42, and the inserted scraper protrusion forms a predetermined gap between the plurality of cleaning members and disorganizes the arrangement of the plurality of cleaning members. Afterwards, the plurality of cleaning members clean the scraper 412 by the pattern of the scraper 412 (e.g., unidirectional arrangement of the first scraper member 4121 described above or bidirectional arrangement of the first scraper member 4121 described later). ) maintains a scattered arrangement for a predetermined section along the extension direction. In this case, the hair that has become tangled in the plurality of cleaning members can be untangled or the hair can be prevented from becoming tangled in the cleaning members.

At this time, the catching groove (e.g., the first catching groove 41213 or the second catching groove 41223) of the scraper 412 allows the hair tangled in the plurality of cleaning members to be removed when the drum brush 42 is rotated. It can be guided so that it catches in the catching groove. In this case, when the hair contacts or collides with the scraper 412 when the drum brush 42 rotates, the hair gets caught in the catching groove and is torn or released from the cleaning member.

Thereafter, as shown in (b) of FIG. 9, the hair separated from the drum brush 42 through the scraper 412 is removed from the dust guide unit 413 by the internal pressure acting on the brush housing 41. It flows to the vacuum suction port 414h.

10 is a bottom view of a suction head according to an embodiment of the present disclosure.

Referring to Figure 10, in one embodiment, the brush 424 of the drum brush 42 is located in the center of the drum 421 and is based on the partition rib 423 extending along the circumferential direction of the drum 421. It can be divided into a first brush 424a and a second brush 424b.

In one embodiment, the first brush 424a and the second brush 424b may be arranged to be left and right symmetrical with respect to the partition rib 423.

In one embodiment, a plurality of first and

second brushes

424a and 424b may be provided. In one embodiment, each of the plurality of first and

second brushes

424a and 424b is arranged to extend from the outer peripheral surface of the drum 421 to have a spiral shape along the axial direction (or longitudinal direction) of the drum 421. You can. Each of the plurality of first brushes 424a extends from one end 42a of the drum brush 42 to the partition rib 423 along the axial direction of the drum 421 on the outer peripheral surface of the drum 421, for example. It can be extended to have a spiral shape. Each of the plurality of second brushes 424b extends from the other end 42b of the drum brush 42 to the partition rib 423 along the axial direction of the drum 421 on the outer peripheral surface of the drum 421, for example. It can be extended to have a spiral shape. For example, the first brush 424a and the second brush 424b may extend to have a spiral shape in directions that are symmetrical to each other. Each of the plurality of first and

second brushes

424a and 424b may be arranged at a predetermined distance along the outer circumference of the drum 421.

FIG. 11 is a view showing the drum brush separated from the suction head shown in FIG. 10. Figure 12 is a cross-sectional view of the suction head taken along line B-B in Figure 11. FIG. 13 is an enlarged view of portion III of FIG. 11 for explaining a scraper structure according to an embodiment of the present disclosure.

11 to 13, in one embodiment, the scraper 412-2 may be configured to be substantially the same as the scraper 412 described above in terms of operation, structure, and/or shape. Hereinafter, for convenience of explanation, only the parts where there are differences will be explained.

According to one embodiment, the first scraper member 4121-2 may include a plurality of 1-1 scraper members 4121-2a or a plurality of 1-2 scraper members 4121-2b.

According to one embodiment, the plurality of 1-1 scraper members 4121-2a and the plurality of 1-2 scraper members 4121-2b are based on the vacuum inlet 414h or the second dust guide 413b. In this way, it can be arranged to be symmetrical on both left and right sides on the inner peripheral surface of the drum receiving portion 411. The plurality of first-1 scraper members 4121-2a are, for example, an area corresponding to one side of the first area A1 on the inner peripheral surface of the drum receiving portion 411 closest to the vacuum suction port 414h. may be placed in the second area A2. For example, the plurality of 1-2 scraper members 4121-2b may be disposed in the third area A3, which is an area corresponding to the other side of the first area A1.

In one embodiment, each of the plurality of first scraper members 4121-2 may be arranged to be spaced apart from each other along the inner peripheral surface of the drum receiving portion 411 in correspondence with the brush 422 arrangement structure of the drum brush 42. there is.

When the plurality of

brushes

424a and 424b of the drum brush 42 extend in a spiral shape along the drum 421 in different directions (or both directions) with respect to the partition rib 423 (see FIG. 10) , When the drum receiving portion 411 is viewed from a direction perpendicular to the rotation axis of the drum brush 42, the 1-1 and 1-2 scraper members 4121-2a and 4121-2b have a predetermined shape that is symmetrical to each other. It may be disposed on the inner peripheral surface of the drum receiving portion 411 to have an inclination (or angle) of .

According to one embodiment, each of the first scraper members 4121-2 may be formed to extend in a direction closer to the first area A1 as it moves away from one end including the first stopping protrusion 41212. .

As shown in FIG. 12, when the drum receiving portion 411 is viewed in a direction perpendicular to the rotation axis of the drum brush 42, in one embodiment, the 1-1 scraper member 4121-2a is, It may extend along the inner peripheral surface of the drum receiving portion 411 from the 11 o'clock direction to the 5 o'clock direction. As shown in FIG. 12, when the drum receiving portion 411 is viewed in a direction perpendicular to the rotation axis of the drum brush 42, in one embodiment, the 1-2 scraper member 4121-2b is, It may extend along the inner peripheral surface of the drum receiving portion 411 from the 1 o'clock direction to the 5 o'clock direction. In this case, when the drum brush 42 rotates, foreign substances sucked into the suction head 40 may be guided to the first area A1 along the first scraper member 4121'.

According to one embodiment, the second scraper member 4122-2 may be disposed in the central portion of the drum receiving portion 411. For example, the second scraper member 4122-2 may be disposed in the first area A1 between the second and third areas A2 and A3. In one embodiment, the number of second scraper members 4122-2 may be at least two or more. The two or more second scraper members 4122-2 may include, for example, a 2-1 scraper member 4122-2a or a 2-2 scraper member 4122-2b (see FIG. 13 ). In one embodiment, the 2-1 scraper member 4122-2a and the 2-2 scraper member 4122'b may be disposed at different positions along the rotation axis direction of the drum brush 42. The 2-1 scraper member 4122-2a and the 2-2 scraper member 4122-2b are, for example, facing the drum receiving portion 411 in a direction perpendicular to the rotation axis of the drum brush 42. At this time, they may be arranged to be spaced apart from each other in the up, down, left and right directions (or diagonal direction) on the inner peripheral surface of the drum receiving portion 411.

According to one embodiment, the second scraper member 4122-2 prevents foreign substances such as hair from becoming entangled in the central part of the drum receiving portion 411 when the drum brush 42 rotates, or removes the tangled foreign substances. It can be configured.

The first scraper member 4121-3 may be configured to correspond to the operation, structure, and/or shape of the above-described first scraper member 4121-2, except for the arrangement form.

Unlike the plurality of first scraper members 4121-2 shown in FIG. 12, the plurality of first scraper members 4121-3 shown in FIG. 14 are viewed in a direction perpendicular to the rotation axis of the drum brush 42. When viewed, the drum brush ( 42) may be arranged to be spaced apart from each other on the inner peripheral surface of the drum receiving portion 411 along the direction of the rotation axis.

Above, the structure of the scraper provided in the vacuum cleaner has been described, but the scraper structure can be applied in substantially the same way to cleaners equipped with drum brushes other than vacuum cleaners (for example, robot cleaners). In this case, the scraper structure can prevent foreign substances such as hair from becoming tangled in the drum brush, or remove already tangled hair.

The terms used in this disclosure are only used to describe specific embodiments and are not intended to limit the disclosure. For example, a component expressed in the singular should be understood as a concept that includes plural components unless the context clearly indicates only the singular. As used in this disclosure, “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “ Each of phrases such as "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. It should be understood that the term 'and/or' used in this disclosure encompasses any and all possible combinations of one or more of the listed items. Terms such as 'include', 'have', 'consist', etc. used in this disclosure are only intended to designate the presence of features, components, parts, or combinations thereof described in this disclosure, and the use of such terms It is not intended to exclude the presence or addition of one or more other features, components, parts, or combinations thereof. Expressions such as 'first', 'second', etc. used in the present disclosure can modify various components regardless of order and/or importance, and are only used to distinguish one component from another component. It does not limit the components.

The expression 'configured to' used in the present disclosure means, depending on the situation, for example, 'suitable for,' 'having the ability to,' 'designed to,' 'modified to,' "made to. ,' or 'capable of ~', etc. can be used appropriately. The term 'configured to ~' may not necessarily mean 'specially designed' in terms of hardware, but in some situations, 'configured to ~'. The expression 'device' may mean that the device is 'capable of' in conjunction with other devices or components, for example, the phrase 'a device configured (or set) to perform A, B, and C'. may be a dedicated device for performing the corresponding operation, or may mean a general-purpose device capable of performing various operations including the corresponding operation.

Meanwhile, the terms “upper side,” “lower side,” and “front-back direction” used in the present disclosure are defined based on the drawings, and the shape and location of each component are not limited by these terms.

Although the foregoing description in the present disclosure has been centered on specific embodiments, the present disclosure is not limited to such specific embodiments, and is understood to encompass various modifications, equivalents, and/or replacements of the various embodiments. It has to be.

Claims

In vacuum cleaners,

a drum brush 42 configured to rotate about a rotation axis;

a drum brush housing (41) including a drum receiving portion (411) configured to surround at least a portion of the drum brush (42);

a vacuum suction port 414h disposed outside the drum receiving portion 411 of the drum brush housing 41; and

At least one scraper structure (412) disposed in the drum receiving portion (411) and configured to at least partially collide with the drum brush (42) when the drum brush (42) rotates,

The scraper structure (412) has locking protrusions (41212, 41222) extending toward the outside of the drum receiving portion (411).
According to paragraph 1,

The drum receiving portion 411 of the drum brush housing 41 has a first end region 411a and a second end region 411b on both sides along the rotation direction of the drum brush 42,

The second end area 411b is disposed closer to the vacuum suction port 414h than the first end area 411a,

The scraper structure 412 includes a plurality of scraper members 4121 and 4122 spaced apart from each other along the axial direction of the rotation axis in the second end region 411b of the drum brush housing 41. vacuum cleaner.
According to paragraph 1,

The scraper structure 412 includes a plurality of scraper members 4121 and 4122 spaced apart from each other,

Each of the scraper members 4121 and 4122 has an embossed structure extending inside the drum accommodating portion 411 along the inner peripheral surface of the drum accommodating portion 411 to surround at least a portion of the drum brush 42. ,

The embossed structure protrudes from the inner peripheral surface of the drum receiving portion 411 and has scraper faces (41211, 41221) facing the drum brush 42, and one end of the scraper faces (41211, 41221) A vacuum cleaner forming the locking protrusions 41212 and 41222, respectively.
According to paragraph 3,

The drum brush 42 has first ends 42a and second ends 42b on both sides along the axial direction of the rotation axis, and a central portion 42c, 423 between the first and second ends 42a and 42b. ), including

The drum brush (42) includes one or more brush structures (422, 424) disposed on the surface of the drum brush (42),

In each of at least some scraper members 4121 among the plurality of scraper members 4121 and 4122,

The embossed structure extends from the one end including the catching protrusion 41212 along the inner peripheral surface of the drum receiving portion 411 in a direction determined according to the arrangement form of the brush structures 422 and 424. Vacuum cleaner.
According to paragraph 4,

Each of the brush structures 422 extends from the first end 42a of the drum brush 42 through the central portion 42c to the second end 42b on the surface of the drum brush 42. It extends to form a spiral shape,

In each of the at least some scraper members 4121 among the plurality of scraper members 4121 and 4122,

The embossed structure becomes closer to the second end 42b of the drum brush 42 as it moves away from the one end including the locking protrusion 41212 and has a predetermined angle with respect to a plane perpendicular to the rotation axis. A vacuum cleaner that extends in the direction of forming.
According to clause 5,

The plurality of scraper members 4121 and 4122 includes one or more scraper members 4122 disposed closer to the second end 42b than the at least some of the scraper members 4121,

The one or more scraper members (4122) disposed proximate to the second end (42b) extend in a different direction and length from each of the at least some scraper members (4121).
According to paragraph 4,

The brush structure 424 includes a first brush 424a extending in a spiral shape from the first end of the drum brush 42 to the central portion 423, and the first brush 424a of the drum brush 42. It includes a second brush (422b) extending in a spiral shape from the second end to the central portion (423),

In each of the at least some (4121-2) of the plurality of scraper members (4121-2, 4122-2),

The embossed structure extends in a direction closer to the central portion 423 of the drum brush 42 as the distance from the one end including the catching protrusion 41212 increases.
In clause 7,

The at least some of the scraper members 4121-2 include a plurality of 1-2 scraper members 4121-2a and a plurality of 1-2 scraper members 4121- arranged symmetrically with respect to the central portion 423. 2b), including a vacuum cleaner.
In clause 7,

The plurality of scraper members 4121-2, 4122-2 includes one or more scraper members 4122-2 disposed closer to the central portion 423 than the at least some of the scraper members 4121-2. do,

The one or more scraper members (4122-2) disposed close to the central portion (423) extend in a different direction and length from each of the at least some scraper members (4121-2).
According to paragraph 3,

The drum receiving portion 411 of the drum brush housing 41 has first end regions 411a on both sides along the rotation direction of the drum brush 42, and the vacuum cleaner than the first end region 411a. It has a second end region 411b disposed close to the intake port 414h,

The second end area 411b includes a first area A1 closest to the vacuum inlet 414h, a second area A2 disposed on both sides of the first area A1 along the rotation axis, and a second area A2 disposed on both sides of the first area A1 along the rotation axis. It has 3 areas (A3),

The plurality of scraper members 4121-2 and 4122-2 include one or more second scraper members 4122-2 disposed in the first area A1, the second area A2 or the third A vacuum cleaner, comprising at least one first scraper member (4121-2) disposed in area (A3) and having a different shape than the at least one second scraper member (4122-2).
According to clause 10,

Two or more first scraper members 4121-2 are disposed in each of the second area A2 and the third area A3,

Each of the two or more first scraper members 4121-2 is positioned away from the one end including the catching protrusions 41212 and 41222 on the inner peripheral surface of the drum receiving portion 411 facing the drum brush 42. The vacuum cleaner extends toward the first area (A1).
According to clause 10,

The one or more first scraper members 4121-2 include a plurality of 1-1 scraper members 4121-2a and a plurality of 1-2 scrapers arranged symmetrically with respect to the first area A1. A vacuum cleaner, including member 4121-2b.
According to clause 10,

Two or more second scraper members 4122-2 are disposed in the first area A1,

Each of the two or more second scraper members 4122-2 extends along the rotation direction of the drum brush 42 on the inner peripheral surface of the drum receiving portion 411 facing the drum brush 42. .
According to clause 13,

The two or more second scraper members 4122-2 include a 2-1 scraper member 4122-2a disposed close to the outside of the drum accommodating portion 411, and the second scraper member 4122-2a of the drum accommodating portion 411. It includes a 2-2 scraper member (4122-2b) disposed more inside the drum receiving portion 411 than the 2-1 scraper member (4122-2a) along the inner peripheral surface,

The 2-1 scraper member (4122-2a) and the 2-2 scraper member (4122-2b) are disposed at different positions along the extension direction of the rotation axis.
According to paragraph 3,

The drum receiving portion 411 of the drum brush housing 41 has first end regions 411a on both sides along the rotation direction of the drum brush 42, and the vacuum cleaner than the first end region 411a. It has a second end region 411b disposed close to the intake port 414h,

The drum brush 42 includes a first end 42a and a second end 42b on both sides along the axial direction of the rotation axis,

The plurality of scraper members 4121 and 4122 are spaced apart from each other along the axial direction of the rotation axis on the second end region 411b, and the farther away they are from the one end including the locking protrusions 41212 and 41222. A plurality of first scraper members 4121 extending toward the second end 42b, and disposed closer to the second end 42b than the area where the plurality of first scraper members 4121 are disposed, and A vacuum cleaner, comprising at least one second scraper member (4122) extending along the direction of rotation of the drum brush (42).