Cleaning device
By designing a cleaning device with a rotating roller and a brush, combined with a partition unit and a suction unit, the problem of difficulty in removing contaminants attached to rough surfaces in the prior art is solved, and efficient contaminant absorption and separation are achieved.
Patent Information
- Application Number
- CN202380068027.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-11-14
- Filing Date
- 2023-11-09
- Publication Date
- 2025-04-18
AI Technical Summary
Existing automatic cleaning equipment is difficult to efficiently remove contaminants such as hair and textile lines that adhere to rough surfaces, and the regulation of suction pressure and area is difficult to meet the needs of different types of contaminants.
A cleaning device including a drum unit and a brush is designed, which is able to rotate about an axis, and the brush extends from the outer circumferential surface of the drum unit, and the suction pressure and area are adjusted to accommodate different types of contaminants by the coordination of the partition unit and the suction unit.
It realizes efficient absorption and separation of highly adherent pollutants, improves cleaning efficiency, and adapts to the needs of different types of pollutants.
Smart Images
Figure CN119855529A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a cleaning device that automatically performs a cleaning operation, and more particularly, to a cleaning device including a brush that is rotatable about an axis. Background Art
[0002] Today's cleaning equipment can provide various conveniences, such as the fact that the user does not need to perform cleaning in person, and the fact that the user can optionally set the operating mode, operating time, etc. Therefore, the demand for automatic cleaning equipment has been increased recently. The automatic cleaning equipment operates indoors according to a preset method and sucks dust or small garbage from the floor. For this purpose, the automatic cleaning equipment includes a motor for generating suction force, a dust box for storing the sucked dust or small garbage, and a filter for purifying and discharging the air sucked into the dust box.
[0003] The garbage collected by the automatic cleaning device may be in various forms. For example, the garbage may include not only pollutants of various sizes, but also hair removed from the human body and textile threads separated from clothing, etc. The suction port and suction pressure may vary depending on the type of garbage collected by the automatic cleaning device.
[0004] Garbage such as hair, textile threads or pet hair has the property of being easily attached to objects with rough surfaces due to electrostatic attraction. At the same time, garbage has the property of not being easily separated from the surface of the object to which the garbage is attached. On the other hand, in the case of pollutants of various sizes, since the pollutants will not adhere to the cleaning target surface on which the pollutants are placed, a relatively low suction pressure may be required, but a suction area of the suction port corresponding to the size of the pollutants should be ensured. Summary of the invention
[0005] According to the example, the cleaning device may include: a main body unit, which can move along a plane; a first suction unit, which extends along a first direction and is arranged below the main body unit, and through which garbage can be sucked up; a second suction unit, which extends along the first direction and is arranged below the main body unit, and through which garbage can be sucked up; and a partition unit, which extends along the first direction and is arranged between the first suction unit and the second suction unit.
[0006] In addition, the cleaning device according to the example may include: a roller unit, which is arranged in the first suction unit, extends along the first direction, and is arranged to be able to rotate around an axis extending along the first direction; a brush, which extends a first length from the outer circumferential surface of the roller unit; and a driving unit, which is configured to generate power so that the roller unit rotates around the one axis.
[0007] Furthermore, in the cleaning apparatus according to the example, the outer circumferential surface of the drum unit and the partition unit may be arranged to be spaced apart from each other by a first distance, and the first length of the brush extending from the outer circumferential surface of the drum unit is greater than the first distance. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 is a side view of a cleaning apparatus according to an example.
[0009] Figure 2 is a bottom view of a cleaning device according to an example.
[0010] Figure 3 is an exploded perspective view of a cleaning device according to an example.
[0011] Figure 4 is a block diagram of a cleaning device according to an example.
[0012] Figure 5 is an exploded perspective view of a suction unit according to an example.
[0013] Figure 6 is a perspective view of a roller unit, a brush, and a partition unit according to an example.
[0014] Figure 7a is a cross-sectional view of a suction unit according to an example.
[0015] Figure 7b is an enlarged cross-sectional view of a portion of a suction unit according to an example.
[0016] Figure 8a is a perspective view of a support frame module that can be detached from a main body unit according to an example.
[0017] Figure 8b is an exploded perspective view of a support frame module according to an example.
[0018] Fig. 9 is a cross-sectional view of a suction unit through which pollutants are sucked according to an example.
[0019] Fig.10 is a cross-sectional view of a suction unit through which pollutants are sucked according to an example. DETAILED DESCRIPTION
[0020] Hereinafter, the configuration and operation of the present disclosure will be described in detail with reference to the embodiments of the accompanying drawings.
[0021] The terms used herein will be briefly described, and then the present disclosure will be described in detail.
[0022] The terms used in this article are general terms currently widely used in the art in consideration of the functions in the present disclosure, but these terms may change according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, in some cases, there may be terms optionally selected by the applicant, and their meanings will be described in detail in the corresponding parts of the present disclosure. Therefore, the terms used in this article should not be understood as simple names, but should be understood based on the meaning of the terms and the overall description of the present disclosure.
[0023] Throughout the present disclosure, when it is mentioned that something “comprises” an element, it may also include one or more other elements unless otherwise specified.
[0024] It should be understood that although terms such as “first” and “second” may be used herein to describe various elements, these elements should not be limited by these terms and these terms are only used to distinguish one element from another.
[0025] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that a person of ordinary skill in the art can easily implement the present disclosure. However, the present disclosure may be embodied in a variety of different forms, and the present disclosure should not be construed as being limited to the embodiments set forth herein. In addition, in order to clearly describe the present disclosure, parts that are not related to the description of the present disclosure will be omitted in the drawings, and the same reference numerals throughout the entire specification will represent the same elements.
[0026] In addition, terms such as “upper side”, “lower side”, and “front-rear direction” used in the following description are defined based on the drawings, and the shapes and positions of elements are not limited by these terms.
[0027] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
[0028] Figure 1 is a side view of a cleaning apparatus according to an example. Figure 2 is a bottom view of a cleaning device according to an example.
[0029] The cleaning device 1 according to an embodiment of the present disclosure will be described with a focus on a robot cleaning device, which can independently perform cleaning operations according to a preset method without relying on manual operation by a user. However, the present disclosure is not limited thereto, and the cleaning device 1 according to the present disclosure can be applied to any cleaning device that relies on manual operation by a user.
[0030] refer to Figure 1 and Figure 2 According to the example, the cleaning device 1 may include: a main unit 10, a travel unit 20 capable of moving the main unit 10 along a plane, and a cleaning device 20 for sucking a cleaning object placed on a cleaning target surface H (see Fig. 9 ) and a dust collection container (not shown) for accommodating foreign matter sucked from the cleaning target surface H.
[0031] The main unit 10 according to the example can form the outer shape of the cleaning device 1. As an example, the main unit 10 can be set in the shape of a shell including a storage space therein. In this case, the main unit 10 can accommodate components for the cleaning device 1 to perform a cleaning operation in the storage space therein. For example, the dust collection container (not shown) described below can be accommodated inside the main unit 10 in a detachable manner. In this case, the internal space of the main unit 10 can be communicated with the outside. Therefore, as the cleaning device 1 travels, the air or small garbage collected by the suction unit 30 can be collected into the dust collection container (not shown) connected in a detachable manner through the internal space of the main unit 10.
[0032] As an example, the main unit 10 may collide with various obstacles located in an area (e.g., an indoor area) where the cleaning device 1 travels. Therefore, the main unit 10 may include a high-rigidity material to prevent damage caused by the collision. In addition, the main unit 10 may include a lightweight material. Therefore, the power required for driving the cleaning device 1 can be reduced. For example, the main unit 10 may include a synthetic resin such as reinforced plastic.
[0033] A user interface may be provided on the outer surface of the main body unit 10. The user may control the operation of the cleaning device 1 by operating the user interface. In addition, the user interface may display information about the state of the cleaning device 1 and the area in which the cleaning device 1 travels.
[0034] In the illustrated embodiment of the present disclosure, the main unit 10 may have a disc shape having a circular cross section and a predetermined height in the vertical direction. Therefore, when the cleaning device 1 collides with various obstacles while traveling, the main unit 10 may rotate and travel in multiple directions.
[0035] The travel unit 20 can move the main unit 10 along a plane (e.g., an XY plane). The travel unit 20 according to the example may include one or more drive wheels and a travel motor for generating power transmitted to the drive wheels. As an example, the travel unit 20 may be coupled to the lower side of the main unit 10 in a rotatable manner. For example, the travel unit 20 may be provided as a plurality of travel units. In this case, the rotation speed and rotation direction of each travel unit 20 may be controlled independently of each other. Therefore, the main unit 10 may move forward, move backward, turn left, or turn right on a plane (XY plane).
[0036] According to the example, the travel sensor unit 25 may be arranged to sense information about the path along which the cleaning device 1 travels. As an example, the travel sensor unit 25 may be positioned in the direction along which the cleaning device 1 is expected to travel. For example, the travel sensor unit 25 may be arranged above the main unit 10 to sense information about the environment of the front side of the cleaning device 1. The travel sensor unit 25 according to the example may be configured in any form capable of sensing information about the environment of the path along which the cleaning device 1 travels. For example, the travel sensor unit 25 may include a LIDAR sensor for sensing the distance to an obstacle or a camera capable of sensing image information.
[0037] The dust collection container (not shown) may store garbage collected when the cleaning device 1 travels. For example, the dust collection container (not shown) may contain pollutants placed on the cleaning target surface H. The dust collection container (not shown) according to the example may be detachably coupled to the main unit 10. The user may remove the dust collection container (not shown) from the main unit 10 so as to easily remove the pollutants contained in the dust collection container (not shown).
[0038] The dust collection container (not shown) according to the example may include a storage space therein. The storage space may be communicated with a space (e.g., a moving path) formed inside the main unit 10. Pollutants collected by the suction unit 30 may enter the dust collection container (not shown) through the moving path formed inside the main unit 10.
[0039] The suction unit 30 may suck the pollutants by using a suction motor (not shown) for generating a suction force necessary for sucking the foreign matter on the cleaning target surface H. The pollutants sucked by the suction unit 30 may have different sizes, shapes, and materials. As an example, the first pollutant T sucked by the suction unit 30 may be 1 (See Fig. 9 ) may not be easily separated from the cleaning target surface H after being attached to the cleaning target surface H, but may have a larger amount than the second contaminant T described below. 2 (See Fig.10 ) smaller size. For example, the first pollutant T 1 Hair removed from the human body and textile threads separated from clothing and the like may be included. Among the pollutants collected by the suction unit 30, pollutants such as hair, textile threads, or pet hair may have the property of being easily attached to an object with a rough surface due to electrostatic attraction. At the same time, the pollutant may have the property of not being easily separated from the surface of an object to which the pollutant has been attached. Therefore, in daily life, when the pollutant is attached to the surface of an object of a textile material such as a carpet or a mat, the pollutant may not be easily separated from the object.
[0040] In addition, the second pollutant T sucked by the suction unit 30 2 (See Fig.10 ) may be easily separated from the cleaning target surface H, but may have a larger 1 For example, the second pollutant T 2 It may be a small toy or food that is not attached to the cleaning target surface H.
[0041] According to an example, the size and suction pressure of the suction unit 30 may vary depending on the type of pollutants sucked by the suction unit 30. For example, the suction area of the suction unit 30 may be increased to change the size of the suction unit 30. In addition, the power of the suction motor (not shown) may be increased to increase the suction pressure of the suction unit 30. However, in the case where the power of the suction motor (not shown) is the same, the suction pressure of the suction unit 30 may be increased by reducing the suction area of the suction unit 30, or the suction pressure of the suction unit 30 may be reduced by increasing the suction area of the suction unit 30. Hereinafter, a technical feature for dividing the suction unit 30 into a first suction unit 31 and a second suction unit in the case where the power of the suction motor (not shown) is the same will be described in more detail, wherein the first pollutant T 1 Passing through the first suction unit 31, the second pollutant T 2 Proceeding through the second suction unit, these technical features adjust the suction area and suction pressure of the first suction unit 31 and the second suction unit 32 differently.
[0042] Figure 3 is an exploded perspective view of a cleaning device according to an example. Figure 4 is a block diagram of a cleaning device according to an example. Figure 5 is an exploded perspective view of a suction unit according to an example. Figure 6 is a perspective view of a roller unit, a brush, and a partition unit according to an example. Figure 7a is a cross-sectional view of a suction unit according to an example. Figure 7b is an enlarged cross-sectional view of a portion of a suction unit according to an example.
[0043] refer to Figures 3 to 7b , the suction unit 30 according to the example may include: a first suction unit 31, a second suction unit 32, and a partition unit 33 arranged between the first suction unit 31 and the second suction unit 32. As an example, the first suction unit 31 arranged with the drum unit 100 described below may have a suction area smaller than that of the second suction unit 32, but may have a suction pressure greater than that of the second suction unit 32. Therefore, after being attached to the cleaning target surface H, it is not easy to separate from the cleaning target surface H but has a greater suction pressure than the second contaminant T 2 The first pollutant T of the larger size 1 (See Fig. 9 ) may travel through the first suction unit 31. In addition, the second suction unit 32 may have a larger suction area than the suction area of the first suction unit 31, but may have a smaller suction pressure than the suction pressure of the first suction unit 31. Therefore, it is easy to separate from the cleaning target surface H but has a lower suction pressure than the first contaminant T 1 The second pollutant T of a larger shape 2 (See Fig.10 ) can travel through the second suction unit 32.
[0044] The first suction unit 31 according to the example may be a suction port extending in the first direction (X direction) and may be arranged below the main unit 10. The first suction unit 31 may be fluidically connected to the dust collection unit (not shown) by utilizing a moving path 34 connected to the dust collection unit (not shown). Therefore, the first pollutant T sucked by the first suction unit 31 1 The moving path 34 may be received into a dust collection unit (not shown).
[0045] As an example, the first suction unit 31 may include a rectangular opening shape extending in the first direction (X direction). However, the present disclosure is not limited thereto, and the first suction unit 31 may include a first pollutant T 1 Any opening shape that can be traveled through.
[0046] According to an example, since the first contaminant T that is not easily separated from the cleaning target surface H after being attached to the cleaning target surface H 1It is necessary to travel through the first suction unit 31, so the first suction unit 31 may have a relatively high suction pressure. When the same suction motor (not shown) is used in the first suction unit 31 and the second suction unit 32, since the suction area of the first suction unit 31 becomes further smaller than the suction area of the second suction unit 32, the suction pressure of the first suction unit 31 may increase. According to an example, since the drum unit 100 in which the brush 200 is arranged is arranged in the first suction unit 31, the suction area of the first suction unit 31 may be reduced, and the suction pressure of the first suction unit 31 may be increased.
[0047] The drum unit 100 according to the example may be connected to the main body unit 10 so as to be rotatable around one axis 110 extending in a first direction (X direction). Both ends of the drum unit 100 according to the example may be rotatably supported by a side frame 11 provided in the main body unit 10 so as to be rotatable around the one axis 110 in either a clockwise direction or a counterclockwise direction. As an example, the drum unit 100 may be rotated around the one axis 110 at a speed of about 500 revolutions per minute (rpm) to about 1500 rpm.
[0048] The driving unit 300 according to the example may generate power and transmit the power to the drum unit 100 so that the drum unit 100 may rotate about the one axis 110. In this case, the controller 700 may control the rotation speed and the rotation direction of the drum unit 100 by controlling the driving unit 300. As an example, the sensor unit 500 may be arranged at one or more of the ends in the direction in which the drum unit 100 extends. The sensor unit 500 may sense rotation-related information of the drum unit 100 such as the rotation direction and the rotation angle.
[0049] In addition, the roller unit 100 according to the example can be formed to extend in one direction, for example, in a first direction (X direction). As an example, the first direction (X direction) can be perpendicular to the direction along which the cleaning device 1 moves forward (for example, the second direction (Y direction)). Therefore, when the cleaning device 1 moves forward, the area cleaned by the brush 200 arranged on the outer circumferential surface of the roller unit 100 described below can be increased. Thus, the cleaning efficiency of the cleaning device 1 can be improved.
[0050] In addition, the drum unit 100 according to the example may have any shape that can be rotated around an axis between the side frames 11. For example, the cross-section of the drum unit 100 taken along the second direction (Y direction) perpendicular to the first direction (X direction) may have a circular shape 120. In this case, the radius R of the circular shape 120 measured from the center O of the drum unit 100 may be about 6 mm to about 18 mm. In the above-mentioned embodiment of the present disclosure, the cross-sectional shape of the drum unit 100 is described as a circular shape, however, the present disclosure is not limited thereto. According to another example, the cross-sectional shape of the drum unit 100 may have a polygonal shape.
[0051] According to an example, the drum unit 100 may include a high rigidity material capable of supporting the brush 200 described below. For example, the drum unit 100 may include a synthetic resin such as reinforced plastic. As an example, the outer circumferential surface 130 of the drum unit may be a support member, and one end of the brush 200 may be supported by the support member. In addition, the outer circumferential surface 130 of the drum unit 100 may set a boundary range through which pollutants of a certain size or a predetermined size can travel.
[0052] The brush 200 may be arranged on the outer circumferential surface 130 of the drum unit 100. According to an example, the brush 200 may include a plurality of brush structures extending in the radial direction of the drum unit 100. As an example, the length L of the brush 200 extending from the outer circumferential surface 130 of the drum unit 100 in the radial direction of the drum unit 100 may be about 2.9 mm to about 8.7 mm; however, the present disclosure is not limited thereto.
[0053] One end of the brush 200 according to the example may be arranged to be fixed to the outer circumferential surface 130 of the drum unit 100. In addition, the other end of the brush 200 may be arranged to face the cleaning target surface H. As an example, the brush 200 may include an elastic material having a predetermined elastic force. In this case, the length L of the brush 200 may be determined so that the other end of the brush 200 may be partially exposed to the outside of the lower frame 13 of the main unit 10. Therefore, the other end of the brush 200 may be arranged to contact the cleaning target surface H. When the other end of the brush 200 contacts the cleaning target surface H, the brush 200 may be deformed to correspond to the shape of the cleaning target surface H. In this case, contaminants such as hair located on the cleaning target surface H may adhere to the deformed brush 200 and move to the first suction unit 31.
[0054] As described above, suction pressure may be generated by a suction motor (not shown) to suck the pollutants moving to the first suction unit 31 into the moving path 34 provided inside the main unit 10. In this case, when the suction area of the first suction unit 31 is reduced, the suction pressure of the first suction unit 31 may be increased. According to an example, the partition unit 33 and the brush 200 may be arranged to overlap each other, thereby reducing the suction area of the first suction unit 31.
[0055] The partition unit 33 according to the example may extend in the first direction (X direction) and may be arranged between the first suction unit 31 and the second suction unit 32 to define a boundary area between the first suction unit 31 and the second suction unit 32. As an example, the partition unit 33 may be configured in the shape of a flat plate extending in the first direction (X direction). In this case, the partition unit 33 may be arranged to be inclined to have a predetermined angle (e.g., a first angle α) relative to a plane (XY plane) along which the cleaning device 1 moves (e.g., the cleaning target surface H). As an example, the first angle α may be about 15 degrees to about 75 degrees; however, the present disclosure is not limited thereto.
[0056] As an example, since the partition unit 33 is arranged to be inclined to have a first angle α relative to one plane (XY plane) along which the cleaning device 1 moves (eg, the cleaning target surface H), the first suction flow path W 1 and the second suction flow path W 2 The path of the first suction flow path W may be guided to the first suction unit 31 and the second suction unit 32. For example, the first suction flow path W 1 The second suction flow path W may be moved toward the first suction unit 31 along one surface 331 of the partition unit 33 having a first angle α with respect to the cleaning target surface H. 2 It may move toward the second suction unit 32 along the other surface 332 of the partition unit 33 having the first angle α with respect to the cleaning target surface H.
[0057] In addition, the partition unit 33 according to the example may be arranged to be spaced apart from the cleaning target surface H in a manner having a predetermined height between the partition unit 33 and the cleaning target surface H. As an example, the partition unit 33 may be arranged to overlap a portion of the textile material S arranged on the upper surface of the cleaning target surface H while maintaining a predetermined distance from the cleaning target surface H. For example, one end 335 of the partition unit 33 arranged to face the cleaning target surface H may be arranged at a height C of about 0.5 mm to about 3 mm above the other end of the brush 200 in the thickness direction (Z direction) of the cleaning device 1, and the other end of the brush 200 is located at the lowest end in the thickness direction (Z direction) of the cleaning device 1 perpendicular to the first direction (X direction).
[0058] According to an example, one end 335 of the partition unit 33, which is arranged to face the cleaning target surface H, may be arranged to overlap with a portion of the textile material S while maintaining a predetermined distance from the cleaning target surface H. Therefore, one end 335 of the partition unit 33 may move while contacting a portion of the textile material S, thereby separating the first contaminant T 1 (See Fig. 9 ) is additionally separated from the textile material S. However, the present disclosure is not limited thereto, and one end portion 335 of the partition unit 33 may be arranged to be spaced apart from the textile material S in the thickness direction (Z direction) of the cleaning device 1 .
[0059] The partition unit 33 according to the example may be arranged to be spaced apart from the drum unit 100 by a first distance D. For example, the first distance D may be about 1 mm to about 5.2 mm; however, the present disclosure is not limited thereto. Since the partition unit 33 and the drum unit 100 are arranged to be spaced apart from each other by the first distance D, the first contaminant T 1 As an example, the outer circumferential surface 130 of the drum unit 100 and one surface 331 of the partition unit 33 disposed to face the outer circumferential surface 130 of the drum unit 100 may be set to have a first contaminant T having a certain size or a predetermined size. 1 In this case, the first distance D between the drum unit 100 and the partition unit 33 may be set to a distance obtained by subtracting the radius R of the shape 120 from the distance between the center O of the drum unit 100 and one surface 331 of the partition unit 33. That is, the first distance D between the drum unit 100 and the partition unit 33 may be a distance between the outer circumferential surface 130 of the drum unit 100 and one surface 331 of the partition unit 33. Therefore, as Fig. 9 As shown, the first contaminant T having a length smaller than the first distance D between the drum unit 100 and the partition unit 331 The liquid may be transferred to the inside of the main body unit 10 through the first suction unit 31 .
[0060] According to an example, the length L of the brush 200 extending from the outer circumferential surface 130 of the drum unit 100 in the radial direction of the drum unit 100 may be greater than the first distance D between the drum unit 100 and the partition unit 33. Therefore, a portion of the brush 200 and the partition unit 33 may be arranged to overlap each other. Since a portion of the brush 200 and the partition unit 33 may be arranged to overlap each other, the suction area of the first suction unit 31 may be reduced. According to an example, the brush 200 and the partition unit 33 may be arranged to overlap each other within a first range K. For example, the first range K in which the brush 200 and the partition unit 33 overlap each other may be about 0.3 mm to about 2.5 mm. Since the brush 200 and the partition unit 33 are arranged to overlap each other, as the suction area of the first suction unit 31 decreases, the suction pressure of the first suction unit 31 may increase. In addition, in this case, since the first pollutant T traveling through the reduced first suction unit 31 1 The brush 200 having elastic force can be deformed while traveling through the first suction unit 31, so the area of the first suction unit 31 can be maintained within the range of the first distance D between the drum unit 100 and the partition unit 33. Fig. 9 As shown, the first contaminant T having high adhesion, such as animal hair, 1 can be sucked into the first suction unit 31 .
[0061] The second suction unit 32 according to the example may be a suction port extending in the first direction (X direction) and may be arranged below the main unit 10. The second suction unit 32 may be fluidically connected to the dust collection unit (not shown) by utilizing a moving path 34 connected to the dust collection unit (not shown). Therefore, the second pollutant T sucked by the second suction unit 32 2 The moving path 34 may be received into a dust collection unit (not shown).
[0062] As an example, the second suction unit 32 may include a rectangular opening shape extending in the first direction (X direction). However, the present disclosure is not limited thereto, and the second suction unit 32 may include a second pollutant T 2 Any opening shape that can be traveled through.
[0063] According to the example, since it is easily separated from the cleaning target surface H but has a larger contaminant T than the first contaminant T 1 A second pollutant T of a larger shape 2The second suction unit 32 should travel through the second suction unit 32, so the second suction unit 32 can have a relatively large suction area and a relatively low suction pressure compared to the first suction unit 31. As an example, the second suction unit 32 has a predetermined width P in a second direction (Y direction) perpendicular to the first direction (X direction), for example, a width P of about 4 mm to about 20 mm.
[0064] According to the example, the second pollutant T 2 The boundary range that can be traveled through in the second suction unit 32 may be the width P of the second suction unit 32. As described above, the first pollutant T 1 The boundary range that can be traveled through in the first suction unit 31 can be defined by a first distance D between the outer circumferential surface 130 of the drum unit 100 and a surface 331 of the partition unit 33 that is arranged to face the outer circumferential surface 130 of the drum unit 100. In this case, the width P of the second suction unit 32 can be greater than the first distance D between the drum unit 100 and the partition unit 33. Therefore, compared with the first suction unit 31, the second suction unit 32 can have a relatively large suction area. On the other hand, since the suction pressure can be formed in the first suction unit 31 and the second suction unit 32 by the same suction motor (not shown), the second suction unit 32 having a relatively large suction area can have a relatively low suction pressure. Therefore, it is easy to separate from the cleaning target surface H but has a lower suction pressure than the first contaminant T 1 A second pollutant T of a larger shape 2 (See Fig.10 ) can be sucked up by the second suction unit 32.
[0065] Figure 8a is a perspective view of a support frame module detachable from a main body unit according to an example. Figure 8b is an exploded perspective view of a support frame module according to an example.
[0066] refer to Figure 3 , Figure 5 , Figure 8a and Figure 8b , the supporting frame module 800 according to the example may be arranged to be detachable from the main body unit 10. As an example, in addition to the first suction unit 31, the second suction unit 32, the partition unit 33, the drum unit 100 and the brush 200, the supporting frame module 800 may include a supporting frame 810, a bearing unit 820 and a fastening unit (not shown).
[0067] The support frame 810 may be arranged to be detachable from the front lower side of the main unit 10. According to an example, when the main unit 10 is moved by the travel unit 20, the lower side of the support frame 810 may move together with the main unit 10 while contacting the cleaning target surface or being spaced apart from the cleaning target surface by a predetermined distance.
[0068] The support frame 810 according to the example may be provided in the shape of a frame including an accommodation space therein. As an example, the support frame 810 may be moved together by being coupled with the main unit 10, and the support frame 810 may have any shape capable of accommodating the drum unit 100 therein. For example, the support frame 810 may include the shape of a hollow polygonal column extending long in the horizontal direction.
[0069] According to an example, the first suction unit 31, the second suction unit 32, and the partition unit 33 may be arranged in the accommodation space of the support frame 810. As an example, the partition unit 33 may extend in one direction to divide the accommodation space of the support frame 810. For example, both ends of the partition unit 33 are supported to be fixed to both sides of the support frame 810, respectively. Therefore, each of the first suction unit 31 and the second suction unit 32 may be arranged in the space between the partition unit 33 and the support frame 810. According to an example, the support frame 810 and the partition unit 33 may be provided integrally with each other; however, the present disclosure is not limited thereto.
[0070] According to an example, the drum unit 100 may be detachably connected to the first suction unit 31 provided in the support frame 810. As an example, the drum unit 100 may be connected to the support frame 810 to rotate about the one shaft 110. For example, both ends of the drum unit 100 may be detachably connected to the side of the support frame 810. In this case, the bearing units 820 may be arranged at both ends of the one shaft 110 to support the one shaft 110, which is the central axis of the drum unit 100.
[0071] According to an example, when the drum unit 100 is connected to the supporting frame 810, a fastening unit (not shown) may be fastened to the supporting frame 810 so that the drum unit 100 is fixed to the supporting frame 810. As an example, the fastening unit (not shown) may be provided in the form of a cover that is arranged at both ends of the drum unit 100 and fastened to the supporting frame 810.
[0072] Fig. 9 is a cross-sectional view of a suction unit through which pollutants are sucked according to an example. Fig.10 is a cross-sectional view of a suction unit through which pollutants are sucked according to an example.
[0073] refer to Figure 7b and Fig. 9 , the cleaning target surface H where the cleaning device 1 according to the example moves may include a textile material S such as a carpet or a mat. As an example, the first contaminant T having high adhesion 1 (e.g., hair, textile thread, or pet hair) can be easily attached to the textile material S contained in the object having a rough surface (e.g., carpet or mat) by electrostatic attraction. 1 It may not be easy to separate the first pollutant T from the 1 Surface separation of the textile material S.
[0074] One end of the brush 200 according to the example may be arranged to be fixed to the outer circumferential surface 130 of the drum unit 100. In addition, the other end of the brush 200 may be arranged to face the cleaning target surface H. As an example, the brush 200 may include an elastic material having a predetermined elastic force. In this case, the length L of the brush 200 may be determined so that the other end of the brush 200 may be partially exposed to the outside of the lower frame 13 of the main unit 10. Therefore, the other end of the brush 200 may be arranged to contact the cleaning target surface H and the textile material S placed on the cleaning target surface H. When the other end of the brush 200 contacts the cleaning target surface H and the textile material S, the brush 200 may be deformed to correspond to the shapes of the cleaning target surface H and the textile material S. In this case, the first contaminant T such as hair located on the cleaning target surface H and the textile material S 1 The brush 200 may be attached to the deformed brush 200 and moved to the first suction unit 31 .
[0075] As described above, the partition unit 33 may be arranged to overlap a portion of the textile material S while maintaining a predetermined distance from the cleaning target surface H. Figure 7b As shown, one end 335 of the partition unit 33, which is arranged to face the cleaning target surface H, may be arranged to overlap with a portion of the textile material S while maintaining a predetermined distance from the cleaning target surface H. Therefore, one end 335 of the partition unit 33 may move while contacting a portion of the textile material S, thereby separating the first contaminant T 1 The textile material S is additionally separated. However, the present disclosure is not limited thereto, and one end portion 335 of the partition unit 33 may be disposed to be spaced apart from the textile material S in the thickness direction (Z direction) of the cleaning apparatus 1 .
[0076] In addition, a portion of the brush 200 disposed on the outer circumferential surface 130 of the drum unit 100 and the partition unit 33 may be disposed to overlap each other. Since a portion of the brush 200 and the partition unit 33 are disposed to overlap each other, the suction area of the first suction unit 31 may be reduced. Since the brush 200 and the partition unit 33 are disposed to overlap each other, as the suction area of the first suction unit 31 is reduced, the suction pressure of the first suction unit 31 may be increased. In addition, since the first pollutant T traveling through the reduced first suction unit 31 1 The brush 200 having elastic force can be deformed while traveling through the first suction unit 31, so the area of the first suction unit 31 can be maintained within the range of the first distance D between the drum unit 100 and the partition unit 33. Thus, the first pollutant T having high adhesion, such as animal hair, can be sucked by the first suction unit 31. 1 .
[0077] refer to Figure 7b and Fig.10 , according to the example, is easily separated from the cleaning target surface H but has a larger contaminant T than the first contaminant T 1 A second pollutant T of a larger shape 2 (e.g., grains or small pieces) may not easily adhere to the textile material S contained in an object having a rough surface (e.g., a carpet or a mat) by electrostatic attraction. 2 can easily be separated from the second contaminant T 2 Surface separation of the textile material S.
[0078] According to an example, the first pollutant T 1 Or the second pollutant T 2 The boundary range that can be traveled through in the first suction unit 31 may be defined by a first distance D between the outer circumferential surface 130 of the drum unit 100 and one surface 331 of the partition unit 33 disposed to face the outer circumferential surface 130 of the drum unit 100. 2 When the size of the second pollutant T is greater than the first distance D, the second pollutant T 2 The liquid may not be sucked by the first suction unit 31 .
[0079] According to the example, the second pollutant T 2The boundary range that can be traveled through in the second suction unit 32 may be the width P of the second suction unit 32. In this case, the width P of the second suction unit 32 may be greater than the first distance D between the drum unit 100 and the partition unit 33. Therefore, compared with the first suction unit 31, the second suction unit 32 may have a relatively large suction area. On the other hand, since the suction pressure can be formed in the first suction unit 31 and the second suction unit 32 by the same suction motor (not shown), the second suction unit 32 having a relatively large suction area may have a relatively low suction pressure. Therefore, it is easy to separate from the cleaning target surface H but has a lower suction pressure than the first contaminant T 1 A second pollutant T of a larger shape 2 The liquid may be sucked in by the second suction unit 32 .
[0080] The cleaning device according to the example may include: a main body unit 10, which is capable of moving along a plane; a first suction unit 31, which extends along a first direction and is arranged below the main body unit; a second suction unit 32, which extends along the first direction and is arranged below the main body unit; a partition unit 33, which extends along the first direction and is arranged between the first suction unit and the second suction unit; a drum unit 100, which is arranged in the first suction unit, extends along the first direction, and is arranged to be able to rotate around an axis extending along the first direction; a brush 200, which extends a predetermined length from the outer circumferential surface of the drum unit; and a driving unit 300, which is configured to generate power so that the drum unit rotates around the one axis, wherein the outer circumferential surface of the drum unit and the partition unit can be arranged to be spaced apart from each other by a first distance, and the predetermined length of the brush can be greater than the first distance.
[0081] The partition unit 33 may be arranged to be inclined at a first angle with respect to the one plane.
[0082] The first angle may be about 15 degrees to about 75 degrees.
[0083] One end of the partition unit 33 may be disposed at a height of about 0.5 mm to about 3 mm above the other end of the brush 200 at the lowest end in the thickness direction of the cleaning apparatus.
[0084] The suction pressure of the first suction unit 31 may be greater than the suction pressure of the second suction unit 32 .
[0085] The width of the second suction unit 32 in a second direction perpendicular to the first direction may be greater than the first distance between the outer circumferential surface of the drum unit 100 and the partition unit 33 .
[0086] The first distance between the outer circumferential surface of the drum unit 100 and the partition unit 33 may be about 1 mm to about 5.2 mm.
[0087] The width of the second suction unit 32 in a second direction perpendicular to the first direction may be about 4 mm to about 20 mm.
[0088] The cleaning device may further include a supporting frame 810, in which the first suction unit 31, the second suction unit 32 and the partition unit 33 are arranged, and the supporting frame 810 can be removed from the main unit 10, wherein the drum unit 100 can be arranged to be rotatable around the one axis relative to the supporting frame 810.
[0089] The supporting frame 810 and the partition unit 33 may be integrally provided with each other.
[0090] The drum unit 100 may be arranged to be detachable from the supporting frame 810 .
[0091] The cleaning apparatus may further include bearing units 820 disposed at both ends of the one shaft to support the one shaft.
[0092] A cross-section of the drum unit 100 taken in a second direction perpendicular to the first direction may include a circular shape, a radius of the circular shape may be about 6 mm to about 18 mm, and a length of the brush extending in a radial direction of the drum unit may be about 2.9 mm to about 8.7 mm.
[0093] The drum unit 100 may rotate about the one axis at a speed of about 500 rpm to about 1500 rpm.
[0094] The cleaning apparatus may further include a sensor unit 500 configured to sense a rotation speed of the drum unit, and a controller 700 configured to control an operation of the driving unit by receiving the rotation speed of the drum unit from the sensor unit.
[0095] The above embodiments of the present disclosure are merely examples, and those skilled in the art may deduce various modifications and other equivalent embodiments therefrom. Therefore, the true technical scope of the present disclosure should be defined by the technical concept of the present disclosure described in the following claims.
Claims
1. A cleaning device comprising: A main body unit (10), wherein the main body unit is movable along a plane; A first suction unit (31), the first suction unit extending along a first direction and arranged below the main unit, and capable of sucking up garbage; a second suction unit (32), the second suction unit extending along the first direction and arranged below the main unit, and capable of sucking up garbage; a partition unit (33), the partition unit extending along the first direction and arranged between the first suction unit and the second suction unit; a drum unit (100), the drum unit being arranged in the first suction unit, extending along the first direction, and being arranged to be rotatable around an axis extending along the first direction; a brush (200) extending a first length from an outer circumferential surface of the drum unit; and a driving unit (300), the driving unit being configured to generate power so that the drum unit rotates around the one axis, wherein the outer circumferential surface of the drum unit and the partition unit are arranged to be spaced apart from each other by a first distance, and The first length of the brush extending from the outer circumferential surface of the drum unit is greater than the first distance.
2. The cleaning device according to claim 1, wherein: The partition unit (33) is inclined at a first angle relative to the one plane.
3. The cleaning device according to claim 2, wherein: The first angle is about 15 degrees to about 75 degrees.
4. The cleaning device according to any one of claims 1 to 3, wherein: One end of the partition unit (33) is arranged at a height of about 0.5 mm to about 3 mm above the other end of the brush (200) located at the lowest end in the direction toward the one plane.
5. The cleaning device according to any one of claims 1 to 4, wherein: The suction pressure of the first suction unit (31) is greater than the suction pressure of the second suction unit (32).
6. The cleaning device according to any one of claims 1 to 5, wherein: The width of the second suction unit (32) in a second direction perpendicular to the first direction is greater than the first distance between the outer circumferential surface of the drum unit (100) and the partition unit (33).
7. The cleaning device according to any one of claims 1 to 6, wherein: The first distance between the outer circumferential surface of the drum unit (100) and the partition unit (33) is about 1 mm to about 5.2 mm.
8. The cleaning device according to any one of claims 1 to 7, wherein: The width of the second suction unit (32) in a second direction perpendicular to the first direction is about 4 mm to about 20 mm.
9. The cleaning device according to any one of claims 1 to 8, further comprising: a supporting frame (810), in which the first suction unit (31), the second suction unit (32) and the partition unit (33) are arranged, and the supporting frame (810) can be detached from the main body unit (10), Wherein, the drum unit (100) is arranged to be rotatable relative to the supporting frame (810).
10. The cleaning device according to claim 9, wherein: The supporting frame (810) and the partition unit (33) are integrally provided with each other.
11. The cleaning device according to claim 9, wherein: The drum unit (100) is arranged to be detachable from the supporting frame (810).
12. The cleaning device according to claim 11, further comprising: Bearing units (820) are respectively arranged at two ends of the one shaft to support the rotation of the drum unit around the one shaft.
13. The cleaning device according to any one of claims 1 to 12, wherein: The cross section of the drum unit (100) in a second direction perpendicular to the first direction is circular. The circular shape has a radius of about 6 mm to about 18 mm, and The brush extends from the outer circumferential surface of the drum unit by a length of about 2.9 mm to about 8.7 mm in a radial direction.
14. A cleaning device according to any one of claims 1 to 13, wherein: The drum unit (100) rotates about the one axis at a speed of about 500 revolutions per minute (rpm) to about 1500 rpm.
15. The cleaning device according to any one of claims 1 to 14, further comprising: a sensor unit (500), the sensor unit being configured to sense a rotation speed of the drum unit; and A controller (700) is configured to control the operation of the driving unit by receiving the rotation speed of the drum unit from the sensor unit.