Suction unit and cleaning device comprising same

Abstract

This cleaning device may comprise: a suction body; a suction unit connected to a first portion of the suction body; and a dust collection part connected to a second portion of the suction body. The suction unit can include: a case connected to the suction body; a rotating member which is connected to the case so as to be rotatable around a rotation axis, and which is in the longitudinal direction parallel to the rotation axis; and a brush connected to the rotating member so as to encompass the outer peripheral surface of the rotating member. The brush can include: one or more first brush portions charged with a positive charge; and one or more second brush portions that do not overlap the first brush portions and are charged with a negative charge. The first brush portion and the second brush portion are alternately arranged in the circumferential direction of the rotating member, and can form an arc within an angle range of 180 degrees with respect to the rotation axis.

Description

Inhaler and cleaning device including same

[0001] The disclosure relates to an inhaler and a cleaning device including the same.

[0002] A cleaning device can remove foreign substances present on a surface by contacting it. During the process of suctioning foreign substances to remove them, the cleaning device can suction them not only by utilizing the physical suction force of the brush, but also by utilizing the electric force generated by frictional charging between the foreign substances and the brush. Research is being conducted to more effectively remove foreign substances by generating frictional charging between the foreign substances and the brush.

[0003] However, the above-described content should not be construed as the applicant's recognition of the content described in this document as prior art, but should only be construed as technology (related art) related to the invention described in this document.

[0004] In one embodiment, the cleaning device may include a suction body having a flow path formed therein; a suction device connected to a first part of the suction body and configured to suction foreign substances on a surface to be cleaned into the flow path of the suction body; and a dust collector connected to a second part of the suction body and configured to store foreign substances sucked into the flow path of the suction body. The suction device may include a case connected to the suction body; a rotating member rotatably connected to the case about a rotation axis and having a longitudinal direction parallel to the rotation axis; and a brush connected to the rotating member CL material so as to surround an outer circumferential surface of the rotating member, the outer surface of which contacts the surface to be cleaned. The brush may include one or more first brush portions that are charged to have a positive charge; and one or more second brush portions that do not overlap with the first brush portions and are charged to have a negative charge. Based on any cross-section of the brush perpendicular to the rotation axis, the one or more first brush portions and the one or more second brush portions are alternately arranged along the circumferential direction of the rotating member, and each of the first brush portions and each of the second brush portions can form an arc within an angular range of 180 degrees with the rotation axis as the center.

[0005] In one embodiment, a suction device of a cleaning device may include: a case connected to a suction body of the cleaning device; a rotating member rotatably connected to the case about a rotational axis and having a longitudinal direction parallel to the rotational axis; and a brush connected to the rotating member so as to surround an outer circumferential surface of the rotating member, the outer surface of the brush contacting a surface to be cleaned. The brush may include: one or more first brush portions charged to have a positive charge; and one or more second brush portions that do not overlap with the first brush portions, are formed of a different material from the first brush portions, and are charged to have a negative charge. With respect to any cross-section of the brush perpendicular to the rotational axis, the one or more first brush portions and the one or more second brush portions are alternately arranged along a circumferential direction of the rotating member, and each of the first brush portions and each of the second brush portions may form an arc within an angular range of 180 degrees about the rotational axis. Based on any cross-section of the brush perpendicular to the rotation axis, each of the first brush portions can form an arc having the same first angle (θ1) with respect to the rotation axis, and each of the second brush portions can form an arc having the same second angle (θ2) with respect to the rotation axis.

[0006] In one embodiment, a cleaning device may include a suction body having a flow path formed therein; a suction device connected to a first part of the suction body and configured to suction foreign substances on a surface to be cleaned into the flow path of the suction body; and a dust collector connected to a second part of the suction body and configured to store foreign substances suctioned into the flow path of the suction body. The suction device may include a case connected to the suction body; a rotating member rotatably connected to the case about a rotation axis and having a longitudinal direction parallel to the rotation axis; and a brush connected to the rotating member so as to surround an outer circumferential surface of the rotating member, the outer surface of which contacts the surface to be cleaned. The brush may include at least one first brush portion that is charged to have a positive charge; and at least one second brush portion that does not overlap with the first brush portion, is formed of a different material from the first brush portion, and is charged to have a negative charge. Based on any cross-section of the brush perpendicular to the rotation axis, the one or more first brush portions and the one or more second brush portions are alternately arranged along the circumferential direction of the rotating member, and each of the first brush portions and each of the second brush portions can form an arc within an angular range of 180 degrees with respect to the rotation axis. The first brush portion is formed of a plurality of first filaments, the second brush portion is formed of a plurality of second filaments, and the materials of the first filaments and the materials of the second filaments are different from each other, and each of the first filaments and each of the second filaments has a diameter of 60 μm or less and a length of 10 mm or less, and each of the first filaments and each of the second filaments has a current density of 80 kF / inch. 2 Up to 120kF / inch 2 The first brush portion and the second brush portion can be formed with a density of .

[0007] The above and other aspects, features and advantages of specific embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings.

[0008] Figure 1 is a perspective view of a cleaning device according to one embodiment.

[0009] FIG. 2a is a perspective view of a brush of a cleaning device according to one embodiment.

[0010] FIG. 2b is a perspective view of a brush of a cleaning device according to one embodiment.

[0011] Figure 2c is a cross-sectional view taken along line A-A' of Figure 2a.

[0012] Figure 2d is a cross-sectional view taken along line B-B' of Figure 2b.

[0013] FIG. 2e is a drawing showing a state in which a brush according to one embodiment is unfolded without wrapping around a rotating member.

[0014] Figure 2f is a drawing showing an enlarged view of area D of Figure 2e.

[0015] FIG. 3A is a perspective view of a brush of a cleaning device according to one embodiment.

[0016] FIG. 3b is a drawing showing a state in which a brush according to one embodiment is unfolded without wrapping around a rotating member.

[0017] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical components are assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0018] The embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "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 "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0019] The term "module" used in the embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0020] Embodiments of the present document may be implemented as software (e.g., a program) including one or more instructions stored in a storage medium (e.g., built-in memory or external memory) readable by a machine (e.g., an electronic device). For example, a processor of the machine (e.g., an electronic device) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0021] According to one embodiment, the method according to the embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0022] According to embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0023]

[0024] Fig. 1 is a perspective view of a cleaning device (1) according to an embodiment. Fig. 2a is a perspective view of a brush (133) of a cleaning device (1) according to an embodiment. Fig. 2b is a perspective view of a brush (133) of a cleaning device (1) according to an embodiment. Fig. 2c is a cross-sectional view taken along line A-A' of Fig. 2a, and Fig. 2d is a cross-sectional view taken along line B-B' of Fig. 2b. Fig. 2e is a view illustrating a state in which a brush (133) according to an embodiment is unfolded without wrapping a rotating member (132). Fig. 2f is an enlarged view of area D of Fig. 2e.

[0025] Referring to FIGS. 1 to 2B, a cleaning device (1) according to one embodiment can remove foreign substances on a surface to be cleaned by contacting and rubbing against the surface to be cleaned. In one embodiment, the cleaning device (1) may include a suction body (11) in which a flow path is formed, a suction device (13) connected to the suction body (11), and a dust collector (12) for storing foreign substances. In one embodiment, the cleaning device (1) may include an actuator (not shown) for transmitting power from the outside or generating power within the cleaning device (1) to transmit power to other components.

[0026] In one embodiment, the cleaning device (1) contacts the surface to be cleaned through the suction device (13), and by friction, foreign substances existing on the surface to be cleaned can be moved into the interior of the cleaning device (1) through a path formed in the suction body (11) through the suction device (13). The foreign substances moved into the interior of the cleaning device (1) can be stored in the dust collection unit (12). In one embodiment, the suction device (13) can be connected to the first part (11a) of the suction body (11), and the dust collection unit (12) can be connected to the second part (11b) of the suction body (11) opposite to the first part (11a).

[0027] In one embodiment, the suction device (13) of the cleaning device (1) is connected to the suction body (11) and can come into contact with the surface to be cleaned. In one embodiment, the suction device (13) can suck up foreign substances on the surface to be cleaned by applying a suction force to the surface to be cleaned. In one embodiment, the suction device (13) may include a case (131) connected to the suction body (11), a rotating member (132) rotatably connected to the case (131), and a brush (133) connected to the rotating member (132) so as to surround the rotating member (132).

[0028] In one embodiment, the case (131) of the suction device (13) may be connected to the suction body (11) of the cleaning device (1). In one embodiment, the case (131) may include an opening (not shown) for connecting a rotating member (132).

[0029] In one embodiment, the rotating member (132) of the suction device (13) may be connected to the case (131). For example, the rotating member (132) may be connected to the case (131) so as to be rotatable about a rotation axis (C). In one embodiment, the rotating member (132) may have a longitudinal direction parallel to the rotation axis (C) (e.g., a direction parallel to the X-axis of FIG. 2a). In one embodiment, by the rotating member (132) rotating about the rotation axis (C), the cleaning device (1) may reciprocate along a moving direction (e.g., a Y-axis direction of FIG. 2a) on a surface to be cleaned.

[0030] In one embodiment, the brush (133) of the suction device (13) may be connected to the rotating member (132) so as to surround the outer surface of the rotating member (132). In one embodiment, the brush (133) may be charged to have at least one of a positive charge and a negative charge by contacting and rubbing against the surface to be cleaned as the rotating member (132) rotates around the rotation axis (C). In one embodiment, an electric force may be applied between the brush (133) charged by friction with the surface to be cleaned and a foreign substance having a positive or negative charge, and the foreign substance may be adsorbed to the brush (133) by the electric force.

[0031] In one embodiment, the brush (133) may include one or more first brush portions (1331) that are positively charged and one or more second brush portions (1332) that are negatively charged.

[0032] In one embodiment, the first brush portion and the second brush portion may be arranged on the outer surface of the rotating member so as to be non-overlapping with each other. For example, the first brush portion (1331) and the second brush portion (1332) may be arranged alternately along the circumferential direction of the rotating member (132) (e.g., clockwise or counterclockwise on the YZ plane of FIG. 2a). In one embodiment, the first brush portion (1331) and the second brush portion (1332) may be connected to the outer surface of the rotating member (132) so as to alternately contact the surface to be cleaned or foreign substances along the movement direction of the brush (133) perpendicular to the rotation axis (C) (e.g., parallel to the Y-axis of FIG. 2a). In one embodiment, by alternately arranging brush portions having opposite charges, foreign substances adsorbed on the brush (133) can be prevented or reduced from being removed back to the cleaning surface by the rotation of the brush (133).

[0033] In one embodiment, when looking at the outer surface of the brush (133), the first brush portion (1331) and the second brush portion (1332) may extend while forming an incline along a longitudinal direction parallel to the rotational axis (C) of the brush (133) (e.g., a direction parallel to the X-axis of FIGS. 2A and 2B). For example, the first brush portion (1331) and the second brush portion (1332) may extend in a spiral shape centered on the rotational axis (C). The spiral formed by the first brush portion (1331) and the second brush portion (1332) may have a predetermined width length parallel to the rotational axis (C) when looking at the outer surface of the brush (133) (e.g., a length in a direction parallel to the X-axis of FIGS. 2A and 2B). For example, the first brush portion (1331) may have a first width (W1) and the second brush portion (1332) may have a second width (W2) based on a direction parallel to the rotation axis (C). In one embodiment, the first width (W1) and the second width (W2) may have different lengths. In one embodiment, when the lengths of the first width (W1) and the second width (W2) are different from each other, the area ratios of the first brush portion (1331) and the second brush portion (1332) may be different from each other. In one embodiment, the lengths of the first width (W1) and the second width (W2) may be adjusted so that the cleaning device (1) can have an optimal area ratio of the first brush portion (1331) and the second brush portion (1332) to more effectively remove foreign substances.

[0034] Referring to FIG. 2B, in one embodiment, when looking at the outer surface of the brush (133), the first brush portion (1331) and the second brush portion (1332) may have substantially the same area as each other, and may be formed to extend along the longitudinal direction of the brush (133) (e.g., the direction parallel to the X-axis direction of FIG. 2B). In this case, the first brush portion (1331) may have a first width (W3) based on the direction parallel to the rotation axis (C), and the second brush portion (1332) may have a second width (W4), and the length of the first width (W3) and the length of the second width (W4) may be substantially the same. In one embodiment, the first brush portion (1331) and the second brush portion (1332) may be formed in a spiral shape and be symmetrical with each other with respect to the rotation axis (C).

[0035] Referring to FIGS. 2C and 2D , in one embodiment, each of the first brush portions (1331) and each of the second brush portions (1332) may form an arc forming a certain angle with respect to an arbitrary cross-section perpendicular to the rotation axis (C) of the brush (133) (e.g., a cross-section parallel to the YZ plane of FIG. 2C ). For example, each of the first brush portions (1331) may form an arc forming a first angle (θ1) with respect to the rotation axis (C). Each of the second brush portions (1332) may form an arc forming a second angle (θ2) with respect to the rotation axis (C). In one embodiment, with respect to an arbitrary cross-section perpendicular to the rotation axis (C), the first angles (θ1) formed by each of the first brush portions (1331) may be equal to each other, and the second angles (θ2) formed by each of the second brush portions (1332) may be equal to each other.

[0036] In one embodiment, the first angle (θ1) and the second angle (θ2) may be different from each other. For example, the ratio of the first angle (θ1) and the second angle (θ2) may be in the range of 3:7 to 7:3. In one embodiment, the area ratio formed by the first brush portion (1331) and the second brush portion (1332) may be proportional to the ratio of the first angle (θ1) and the second angle (θ2). In one embodiment, the area ratio formed by the first brush portion (1331) and the second brush portion (1332) may be in the range of 3:7 to 7:3. In one embodiment, when the area ratio of the first brush portion (1331) and the second brush portion (1332) or the ratio of the first angle (θ1) and the second angle (θ2) is not in the range of 3:7 to 7:3, but is, for example, 2:8 to 8:2, the area occupied by either the first brush portion (1331) or the second brush portion (1332) may become excessively small. For example, if the area occupied by the first brush portion (1331) is excessively smaller than the area occupied by the second brush portion (1332) or the area occupied by the second brush portion (1332) is excessively smaller than the area occupied by the first brush portion (1331), a section may occur in which the positive charge charged to the first brush portion (1331) is offset by the negative charge charged to the second brush portion (1332) or the negative charge charged to the second brush portion (1332) is offset by the positive charge charged to the first brush portion (1331). In one embodiment, the area ratio of the first brush portion (1331) and the second brush portion (1332) of the brush (133) or the ratio of the first angle (θ1) and the second angle (θ2) is set within a range of 3:7 to 7:3, so that positive and negative charges are evenly distributed on the outer surface of the brush (133), and the efficiency of adsorbing foreign substances can be increased.

[0037] In one embodiment, the first angle (θ3) formed by each first brush portion (1331) and the second angle (θ4) formed by each second brush portion (1332) may be substantially equal to each other. In this case, the ratio of the areas formed by the first brush portion (1331) and the second brush portion (1332) may be 1:1.

[0038] Referring to FIG. 2e, in one embodiment, the brush (133) may have a pair of first sides (S1) that are parallel to the longitudinal direction of the rotating member (132) (e.g., parallel to the X-axis direction of FIG. 2e) and a pair of second sides (S2) that are perpendicular to the first sides (S1) (e.g., parallel to the Y-axis direction of FIG. 2e) based on a state in which the brush (133) is unfolded without wrapping the rotating member.

[0039] In one embodiment, the first brush portion (1331) and the second brush portion (1332) may each have a pair of third sides (A1) and a fourth side (A2). In one embodiment, the third side (A1) may be formed parallel to the first side (S1) of the brush (133). In one embodiment, the first brush portion (1331) and the second brush portion (1332) may be formed to have a predetermined shape by the pair of third sides (A1) and the pair of fourth sides (A2). In one embodiment, the pair of third sides (A1) may be formed in a direction parallel to each other, and the pair of fourth sides (A2) may be formed in a direction parallel to each other. In one embodiment, the shape of the first brush portion (1331) formed by a pair of third sides (A1) and a pair of fourth sides (A2) and the shape of the second brush portion (1332) may be substantially the same. For example, each of the first brush portion (1331) and each of the second brush portions (1332) may be formed in the shape of a parallelogram by the pair of third sides (A1) and the pair of fourth sides (A2).

[0040] In one embodiment, a pair of fourth sides (A2) of the first brush portion (1331) can form a first inclination angle (α) with respect to a first axis (X1) perpendicular to the longitudinal direction of the brush (133) (e.g., the X-axis direction in FIG. 2e). In one embodiment, the first inclination angle (α) can be greater than 0 degrees and less than 90 degrees. Preferably, the first inclination angle (α) can be greater than 30 degrees and less than 60 degrees. More preferably, the first inclination angle (α) can be greater than 40 degrees and less than 50 degrees. Most preferably, the first inclination angle (α) can be about 45 degrees.

[0041] In one embodiment, a pair of fourth sides (A2) of the second brush portion (1332) can form a second inclination angle (β) with respect to a second axis (X2) perpendicular to the longitudinal direction of the brush (133). In one embodiment, the second inclination angle (β) can be greater than 0 degrees and less than 90 degrees. Preferably, the second inclination angle (β) can be greater than 30 degrees and less than 60 degrees. More preferably, the second inclination angle (β) can be greater than 40 degrees and less than 50 degrees. Most preferably, the second inclination angle (β) can be about 45 degrees. In one embodiment, the magnitudes of the first inclination angle (α) and the second inclination angle (β) can be substantially equal.

[0042] Referring to FIG. 2f, in one embodiment, the first brush portion (1331) may be formed of a plurality of first filaments (1331f). In one embodiment, the second brush portion (1332) may be formed of a plurality of second filaments (1332f).

[0043] In one embodiment, the material of the plurality of first filaments (1331f) forming the first brush portion (1331) and the material of the plurality of second filaments (1332f) forming the second brush portion (1332) may be different from each other. In one embodiment, the plurality of first filaments (1331f) may include at least one material that can be charged to have a positive charge (e.g., polyamide, nylon, wool, fur, silk, polyvinyl alcohol (PVA), cotton, and wood). In one embodiment, the plurality of second filaments (1332f) are made of a material that can be charged to have a negative charge (e.g., Acrylic, Poly(methyl methacrylate, PMMA), Mylar, Epoxy Resin, Natural Rubber, Polycarbonate (PC), Polystyrene (PS), Polyester, Polyethylene (PE), Polyethylene Terephthalate (PET), Polypropylene (PP), Polyvinyl Chloride (PVC), Polyimide, Polydimethylsiloxane (PDMS), Polyvinylidene Fluoride (PVDF), Poly Tetra Fluoro Ethylene (PTFE), It may contain at least one material among perfluoroalkoxy (PFA).

[0044] In one embodiment, the plurality of first filaments (1331f) and the plurality of second filaments (1332f) may each include a fine filament structure. For example, each of the first filaments (1331f) and each of the second filaments (1332f) may have a diameter of 60 μm or less. In one embodiment, the diameter of each of the first filaments (1331f) and each of the second filaments (1332f) may preferably include a diameter of 50 μm or less, more preferably include a diameter of 40 μm or less, and most preferably include a diameter of 30 μm or less. In one embodiment, the diameters of each of the first filaments (1331f) and each of the second filaments (1332f) may be the same as or different from each other. In one embodiment, when the diameter of each of the first filaments (1331f) and each of the second filaments (1332f) exceeds 60 μm, the ability to capture fine-sized foreign substances may be reduced, resulting in a reduction in the cleaning power of the cleaning device (1). In one embodiment, when the diameter of each of the first filaments (1331f) and each of the second filaments (1332f) is 60 μm or less, the gaps between each of the plurality of first filaments (1331f), each of the plurality of second filaments (1332f), or between each of the plurality of first filaments (1331f) and the plurality of second filaments (1332f) may be sufficiently reduced, thereby ensuring a vacuum level (cmH-2O) that can prevent or reduce the performance of the brush (133) from being reduced due to the use of the cleaning device (1).

[0045] In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) may have a length of 10 mm or less. In one embodiment, the lengths of each of the first filaments (1331f) and each of the second filaments (1332f) may be the same or different from each other. In one embodiment, when the lengths of each of the first filaments (1331f) and each of the second filaments (1332f) exceed 10 mm, the lengths of the filaments forming the brush (133) may become excessively long, and a hair-winding phenomenon may occur, which degrades the performance of the brush (133). In one embodiment, when the length of each first filament (1331f) and each second filament (1332f) is 10 mm or less, a filament length that can prevent or reduce hair tangling is secured, thereby improving the durability of the brush (133).

[0046] In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) are each 80kF / inch 2 (number of filaments per square inch) to 120kF / inch 2 The first brush portion (1331) and the second brush portion (1332) can be formed with a density of . In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) preferably has a density of 90 kF / inch. 2 Up to 110kF / inch 2 can be formed with a density of . In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) more preferably has a density of 95kF / inch. 2 Up to 105kF / inch 2 can be formed with a density of. In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) most preferably has a density of about 100 kF / inch. 2can be formed with a density of . In one embodiment, the density formed by the plurality of first filaments (1331f) and the density formed by the plurality of second filaments (1332f) may be the same as each other or may be different from each other. In one embodiment, the density of each of the first filaments (1331f) and each of the second filaments (1332f) is 120kF / inch. 2 If it exceeds , the density of the filaments in a limited space may increase excessively, causing hair tangling, which may deteriorate the performance of the brush (133). In one embodiment, the density of each first filament (1331f) and each second filament (1332f) is 80kF / inch. 2 If less than 80 kF / inch, the density of the filaments may be too low, which may result in poor adsorption performance for foreign substances. In one embodiment, the density formed by each of the first filaments (1331f) and each of the second filaments (1332f) is 80 kF / inch. 2 Up to 120kF / inch 2 In this case, the durability and cleaning performance of the brush (133) can be improved by preventing or reducing hair tangling while securing adsorption performance for foreign substances.

[0047] Fig. 3a is a perspective view of a brush of a cleaning device according to one embodiment. Fig. 3b is a drawing illustrating a state in which the brush according to one embodiment is unfolded without wrapping around a rotating member.

[0048] Referring to FIGS. 3A and 3B, an inhaler according to one embodiment (e.g., the inhaler (13) of FIG. 1) may include a case (e.g., the case (131) of FIG. 1), a rotating member (232) rotatably connected to the case about a rotation axis (e.g., the rotating member (132) of FIG. 2A), and a brush (233) connected to the rotating member (232) so as to surround an outer surface of the rotating member (232) (e.g., the brush (133) of FIG. 2A). In one embodiment, the brush (233) may include a first brush portion (2331) that is charged to have a positive charge (e.g., the first brush portion (1331) of FIG. 2A) and a second brush portion (2332) that is charged to have a negative charge (e.g., the second brush portion (1332) of FIG. 2A).

[0049] In one embodiment, the first brush portion (2331) and the second brush portion (2332) may each form a semicircular arc based on an arbitrary cross-section perpendicular to the rotational axis of the brush (233) (e.g., a cross-section parallel to the YZ plane of FIG. 3A). In one embodiment, the area ratio formed by the first brush portion (2331) and the second brush portion (2332) may be 1:1.

[0050] In one embodiment, the brush (233) may have a pair of first sides (S3) parallel to the longitudinal direction (e.g., the X-axis direction of FIG. 3B) of the rotating member (232) when the brush (233) is unfolded without wrapping the rotating member (232), and a pair of second sides (S4) perpendicular to the first sides (S3). In one embodiment, the first brush portion (2331) and the second brush portion (2332) may each have a pair of third sides (A3) and fourth sides (A4). In one embodiment, the third side (A3) may be formed parallel to the first side (S3) of the brush (233). In one embodiment, the third side (A3) and the fourth side (A4) may be perpendicular to each other. In one embodiment, the shape of the first brush portion (2331) formed by a pair of third sides (A3) and a pair of fourth sides (A4) and the shape of the second brush portion (2332) may be substantially the same. For example, the first brush portion (2331) and the second brush portion (2332) may be formed in a rectangular shape by a pair of third sides (A3) and a pair of fourth sides (A4).

[0051]

[0052] In one embodiment, a cleaning device (1) includes a suction body (11) having a flow path formed therein; a suction device (13) connected to a first part (11a) of the suction body (11) and configured to suction foreign substances on a surface to be cleaned into the flow path of the suction body (11); and a dust collector (12) connected to a second part (11b) of the suction body (11) and configured to store foreign substances suctioned into the flow path of the suction body (11), wherein the suction device (13) includes a case (131) connected to the suction body (11); a rotary member (132; 232) rotatably connected to the case (131) about a rotation axis (C) and having a longitudinal direction parallel to the rotation axis (C); And a brush (133; 233) connected to the rotating member (132; 232) so as to surround the outer surface of the rotating member (132; 232) and having an outer surface in contact with the surface to be cleaned, wherein the brush (133; 233) comprises: at least one first brush portion (1331; 2331) that is charged to have a positive charge; And it includes one or more second brush parts (1332; 2332) that do not overlap with the first brush part (1331; 2331) and are charged to have a negative charge, and based on any cross-section of the brush (133; 233) that is perpendicular to the rotation axis (C), the one or more first brush parts (1331; 2331) and the one or more second brush parts (1332; 2332) are alternately arranged along the circumferential direction of the rotation member (132; 232), and each of the first brush parts (1331; 2331) and each of the second brush parts (1332; 2332) can form an arc within an angular range of 180 degrees with the rotation axis (C) as the center.

[0053] In one embodiment, with respect to any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), each of the first brush portions (1331; 2331) may form an arc having the same first angle (θ1) with respect to the rotation axis (C), and each of the second brush portions (1332; 2332) may form an arc having the same second angle (θ2) with respect to the rotation axis (C).

[0054] In one embodiment, the first angle (θ1) and the second angle (θ2) may be substantially equal to each other.

[0055] In one embodiment, the area ratio formed by the first brush portion (1331; 2331) and the second brush portion (1332; 2332) on the outer surface of the rotating member (132; 232) may be in the range of 3:7 to 7:3.

[0056] In one embodiment, based on any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), the first brush portion (1331; 2331) and the second brush portion (1332; 2332) may form a semicircular arc.

[0057] In one embodiment, based on a state in which the brush (133; 233) is unfolded without wrapping the rotating member (132; 232), the brush (133; 233) may have a pair of first sides (S1; S3) parallel to the longitudinal direction of the rotating member (132; 232) and a pair of second sides (S2; S4) perpendicular to the first sides (S1; S3), and each of the first brush portion (1331; 2331) and each of the second brush portions (1332; 2332) may have a pair of third sides (A1; A3) formed parallel to the first sides (S1; S3) and a pair of fourth sides (A2; A4) connecting the pair of third sides (A1; A3), respectively.

[0058] In one embodiment, based on the unfolded state of the brush (133; 233), the first brush portion (1331; 2331) and the second brush portion (1332; 2332) may have substantially the same shape.

[0059] In one embodiment, based on the unfolded state of the brush (233), each of the first brush portions (2331) and each of the second brush portions (2332) may be formed in a rectangular shape by the pair of third sides (A3) and the pair of fourth sides (A4).

[0060] In one embodiment, based on the unfolded state of the brush (133), each of the first brush portions (1331) and each of the second brush portions (1332) may be formed in a parallelogram shape by the pair of third sides (A1) and the pair of fourth sides (A2).

[0061] In one embodiment, the first brush portion (1331) may have a first width (W1; W3) parallel to the rotation axis (C) and extend while forming a slope along the longitudinal direction, and the second brush portion (1332) may have a second width (W2; W4) parallel to the rotation axis (C) and extend while forming a slope along the longitudinal direction.

[0062] In one embodiment, the first width (W1) and the second width (W2) may have different lengths.

[0063] In one embodiment, the first width (W3) and the second width (W4) may have the same length.

[0064] In one embodiment, the first brush portion (1331; 2331) is formed of a plurality of first filaments (1331f), the second brush portion (1332; 2332) is formed of a plurality of second filaments (1332f), and the material of the first filaments (1331f) and the material of the second filaments (1332f) may be different from each other.

[0065] In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) may have a diameter of 60 μm or less and a length of 10 mm or less.

[0066] In one embodiment, each of the first filaments (1331f) and each of the second filaments (1332f) may form the first brush portion (1331; 2331) and the second brush portion (1332; 2332), respectively, with a density of 80 kF / inch2 to 120 kF / inch2.

[0067] In one embodiment, the suction device (13) of the cleaning device (1) comprises: a case (131) connected to the suction body (11) of the cleaning device (1); a rotary member (132; 232) rotatably connected to the case (131) about a rotation axis (C) and having a longitudinal direction parallel to the rotation axis (C); and a brush (133; 233) connected to the rotary member (132; 232) so as to surround an outer circumferential surface of the rotary member (132; 232) and having an outer surface in contact with a surface to be cleaned, wherein the brush (133; 233) comprises: at least one first brush portion (1331; 2331) that is charged to have a positive charge; And at least one second brush portion (1332; 2332) that is not overlapped with the first brush portion (1331; 2331), is formed of a different material from the first brush portion (1331; 2331), and is charged to have a negative charge, and based on any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), the at least one first brush portion (1331; 2331) and the at least one second brush portion (1332; 2332) are alternately arranged along the circumferential direction of the rotating member (132; 232), and each of the first brush portions (1331; 2331) and each of the second brush portions (1332; 2332) forms an arc within an angular range of 180 degrees with respect to the rotation axis (C), and any of the brushes (133; 233) perpendicular to the rotation axis (C) Based on the cross-section, each of the first brush portions (1331; 2331) can form an arc having the same first angle (θ1) with respect to the rotation axis (C), and each of the second brush portions (1332; 2332) can form an arc having the same second angle (θ2) with respect to the rotation axis (C).

[0068] In one embodiment, the first brush portion (1331; 2331) is formed of a plurality of first filaments (1331f), the second brush portion (1332; 2332) is formed of a plurality of second filaments (1332f), the material of the first filaments (1331f) and the material of the second filaments (1332f) are different from each other, each of the first filaments (1331f) and each of the second filaments (1332f) has a diameter of 60 μm or less and a length of 10 mm or less, and each of the first filaments (1331f) and each of the second filaments (1332f) has a density of 80 kF / inch2 to 120 kF / inch2, respectively, of the first brush portion (1331; 2331) and the second brush portion (1332; 2331) It can form parts (1332;2332).

[0069] In one embodiment, the first filament (1331f) includes at least one material selected from the group consisting of polyamide, nylon, wool, fur, silk, polyvinyl alcohol (PVA), cotton, and wood, and the second filament (1332f) includes at least one material selected from the group consisting of acrylic, poly(methyl methacrylate) (PMMA), Mylar, epoxy resin, natural rubber, polycarbonate (PC), polystyrene (PS), polyester, polyethylene (PE), polyethylene terephthalate (PET), polypropylene (PP), polyvinyl chloride (PVC), polyimide, It may include at least one material selected from the group consisting of organosilicon compound (Polydimethylsiloxane, PDMS), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (Poly Tetra Fluoro Ethylene, PTFE), and perfluoroalkoxy (Perfluoroalkoxy, PFA).

[0070] In one embodiment, the brush (133; 233) has a pair of first sides (S1; S3) parallel to the longitudinal direction of the rotating member (132; 232) and a second side (S2; S4) perpendicular to the first sides (S1; S3), based on a state in which the brush (133; 233) is unfolded without wrapping the rotating member (132; 232), and each of the first brush portion (1331; 2331) and each of the second brush portions (1332; 2332) has a pair of third sides (A1; A3) formed parallel to the first sides (S1; S3) and a pair of fourth sides (A2; A4) connecting the pair of third sides (A1; A3), respectively, and based on a state in which the brush (133; 233) is unfolded, the first brush portion (1331; 2331) and the second brush Parts (1332; 2332) may have substantially identical shapes.

[0071] In one embodiment, a cleaning device (1) includes a suction body (11) having a flow path formed therein; a suction device (13) connected to a first part (11a) of the suction body (11) and configured to suction foreign substances on a surface to be cleaned into the flow path of the suction body (11); and a dust collector (12) connected to a second part (11b) of the suction body (11) and configured to store foreign substances suctioned into the flow path of the suction body (11), wherein the suction device (13) includes a case (131) connected to the suction body (11); a rotary member (132; 232) rotatably connected to the case (131) about a rotation axis (C) and having a longitudinal direction parallel to the rotation axis (C); And a brush (133; 233) connected to the rotating member (132; 232) so as to surround the outer surface of the rotating member (132; 232) and having an outer surface in contact with the surface to be cleaned, wherein the brush (133; 233) comprises: at least one first brush portion (1331; 2331) that is charged to have a positive charge; And it includes one or more second brush parts (1332; 2332) that do not overlap with the first brush part (1331; 2331), are formed of a different material from the first brush part (1331; 2331), and are charged to have a negative charge, and based on any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), the one or more first brush parts (1331; 2331) and the one or more second brush parts (1332; 2332) are alternately arranged along the circumferential direction of the rotation member (132; 232), and each of the first brush parts (1331; 2331) and each of the second brush parts (1332; 2332) forms an arc within an angular range of 180 degrees with respect to the rotation axis (C), and the first brush parts (1331; 2331) are formed of a plurality of first It is formed of a filament (1331f), and the second brush portion (1332;2332) is formed of a plurality of second filaments (1332f), and the materials of the first filaments (1331f) and the second filaments (1332f) are different from each other, and each of the first filaments (1331f) and each of the second filaments (1332f) has a diameter of 60 μm or less and a length of 10 mm or less, and each of the first filaments (1331f) and each of the second filaments (1332f) can form the first brush portion (1331; 2331) and the second brush portion (1332; 2332) with a density of 80 kF / inch2 to 120 kF / inch2, respectively.;

Claims

1. In the cleaning device (1), A suction body (11) in which a euro is formed; A suction device (13) connected to the first part (11a) of the suction body (11) and for suctioning foreign substances on the surface to be cleaned into the path of the suction body (11); and It is connected to the second part (11b) of the above suction body (11) and includes a dust collection unit (12) for storing foreign substances sucked into the path of the above suction body (11). The above inhaler (13) is A case (131) connected to the above suction body (11); A rotating member (132; 232) that is rotatably connected to the case (131) about a rotation axis (C) and has a longitudinal direction parallel to the rotation axis (C); and A brush (133; 233) is connected to the rotating member (132; 232) so as to surround the outer surface of the rotating member (132; 232) and has an outer surface in contact with the surface to be cleaned. The above brush (133;233) is, One or more first brush portions (1331; 2331) charged to have a positive charge; and It comprises one or more second brush portions (1332;2332) that are non-overlapping with the first brush portion (1331;2331) and are charged with a negative charge, Based on any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), A cleaning device (1), wherein the one or more first brush parts (1331; 2331) and the one or more second brush parts (1332; 2332) are alternately arranged along the circumferential direction of the rotating member (132; 232), and each of the first brush parts (1331; 2331) and each of the second brush parts (1332; 2332) form an arc within an angular range of 180 degrees with respect to the rotation axis (C).

2. In paragraph 1, Based on any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), A cleaning device (1), wherein each of the first brush parts (1331; 2331) forms an arc of the same first angle (θ1) with respect to the rotation axis (C), and each of the second brush parts (1332; 2332) forms an arc of the same second angle (θ2) with respect to the rotation axis (C).

3. In paragraph 2, A cleaning device (1), wherein the first angle (θ1) and the second angle (θ2) are substantially equal to each other.

4. In any one of paragraphs 1 to 3, On the outer surface of the above rotating member (132; 232), A cleaning device (1) in which the area ratio formed by the first brush portion (1331; 2331) and the second brush portion (1332; 2332) is in the range of 3:7 to 7:

3.

5. In any one of paragraphs 1 to 4, Based on any cross-section of the brush (133; 233) perpendicular to the rotation axis (C), A cleaning device (1), wherein the first brush portion (1331; 2331) and the second brush portion (1332; 2332) form a semicircular arc.

6. In any one of paragraphs 1 to 5, Based on the state in which the above brush (133; 233) is spread out and not wrapped around the above rotating member (132; 232), The above brush (133; 233) has a pair of first sides (S1; S3) parallel to the longitudinal direction of the rotating member (132; 232) and a pair of second sides (S2; S4) perpendicular to the first sides (S1; S3). A cleaning device (1), wherein each of the first brush portions (1331; 2331) and each of the second brush portions (1332; 2332) has a pair of third sides (A1; A3) formed parallel to the first sides (S1; S3) and a pair of fourth sides (A2; A4) connecting the pair of third sides (A1; A3), respectively.

7. In any one of paragraphs 1 to 6, Based on the unfolded state of the above brush (133;233), A cleaning device (1), wherein the first brush portion (1331; 2331) and the second brush portion (1332; 2332) have substantially the same shape.

8. In any one of paragraphs 1 to 7, Based on the unfolded state of the above brush (233), A cleaning device (1), wherein each of the first brush portion (2331) and each of the second brush portions (2332) is formed in a rectangular shape by the pair of third sides (A3) and the pair of fourth sides (A4).

9. In any one of paragraphs 1 to 7, Based on the unfolded state of the above brush (133), A cleaning device (1), wherein each of the first brush portion (1331) and each of the second brush portions (1332) is formed in a parallelogram shape by the pair of third sides (A1) and the pair of fourth sides (A2).

10. In any one of paragraphs 1 to 9, The above first brush portion (1331) has a first width (W1; W3) parallel to the rotation axis (C) and extends while forming a slope along the longitudinal direction, The second brush portion (1332) has a second width (W2; W4) parallel to the rotation axis (C) and extends along the longitudinal direction to form a slope, which is a cleaning device (1).

11. In paragraph 10, The cleaning device (1) wherein the first width (W1) and the second width (W2) have different lengths.

12. In paragraph 10, The cleaning device (1) wherein the first width (W3) and the second width (W4) have the same length.

13. In any one of paragraphs 1 to 12, The above first brush portion (1331; 2331) is formed of a plurality of first filaments (1331f), The above second brush portion (1332; 2332) is formed of a plurality of second filaments (1332f), The material of the first filament (1331f) and the material of the second filament (1332f) are different from each other in the cleaning device (1).

14. In paragraph 13, A cleaning device (1), wherein each of the first filament (1331f) and each of the second filaments (1332f) has a diameter of 60 μm or less and a length of 10 mm or less.

15. In any one of paragraphs 13 and 14, Each of the above first filaments (1331f) and each of the above second filaments (1332f) are 80kF / inch 2 Up to 120kF / inch 2 A cleaning device (1) forming the first brush portion (1331; 2331) and the second brush portion (1332; 2332) with a density of .

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