WO2024106852A1

WO2024106852A1 - Cleaning apparatus

Info

Publication number: WO2024106852A1
Application number: PCT/KR2023/017999
Authority: WO
Inventors: 나우진; 김현철; 권기환; 김경웅; 김현수; 윤민로
Original assignee: 삼성전자 주식회사
Priority date: 2022-11-14
Filing date: 2023-11-09
Publication date: 2024-05-23
Also published as: KR20240070293A

Abstract

A cleaning apparatus according to an embodiment may comprise: a main body part that can move along one plane; a first suction part extending in a first direction and disposed under the main body part to suck contaminants; a second suction part extending in the first direction and disposed under the main body part to suck contaminants; a partition part extending in the first direction and arranged between the first suction part and the second suction part; a roller part disposed on the first suction part, extending in the first direction, and arranged to be rotatable about a shaft extending in the first direction; a brush extending from the outer circumferential surface of the roller part to a first length; and a driving part which generates power so that the roller part rotates about the shaft.

Description

cleaning device

The present invention relates to a cleaning device that automatically performs a cleaning task, and more specifically, to a cleaning device having a brush that can rotate around one axis.

Recently, cleaning devices can provide various conveniences, such as the fact that the user does not need to perform cleaning directly and the operation mode and operation time can be arbitrarily set. Accordingly, demand for automatic cleaning devices has recently been increasing. The automatic cleaning device travels indoors according to a preset method and sucks in dust or small trash from the floor. To this end, the automatic cleaning device includes a motor that forms a hop input, a dust bin that stores sucked dust or small trash, and a filter that purifies and discharges the air sucked into the dust bin.

The waste collected by an automatic cleaning device can take many forms. As an example, the waste may include pollutants of various sizes, as well as hair fallen from the human body, fiber strands separated from clothes, etc. Depending on the type of waste collected by the automatic cleaning device, the suction port and suction pressure may be different.

Garbage such as hair, fiber strands, or pet hair has the property of easily sticking to objects with a rough surface due to electrostatic attraction. At the same time, the waste has the property of not being easily separated from the surface of the object to which it is attached. On the other hand, contaminants of various sizes do not adhere to the surface to be cleaned on which the contaminants are placed, so relatively low suction pressure may be required, but the suction area of the inlet corresponding to the size of the contaminants must be secured.

A cleaning device according to an example includes a main body movable along one plane, a first suction part extending along a first direction, and a first suction part disposed below the main body to suction contaminants, extending along the first direction. , It may include a second suction part disposed below the main body unit to suck in contaminants, and a partition part extending along the first direction and disposed between the first suction part and the second suction part.

In addition, the cleaning device according to one example includes a roller unit disposed in the first suction unit, extending along the first direction, and rotatable about an axis extending along the first direction, the roller It may include a brush extending from the outer peripheral surface of the unit to a first length, and a driving unit that generates power so that the roller unit rotates around the one axis.

In addition, in the cleaning device according to one example, the outer peripheral surface of the roller unit and the partition unit are arranged to be spaced apart from each other with a first gap, and the first length of the brush extending from the outer peripheral surface of the roller unit spans the first gap. It can be exceeded.

1 is a side view of a cleaning device according to an example.

Figure 2 is a bottom view of a cleaning device according to an example.

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 the suction part 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 part according to an example.

Figure 7b is an enlarged cross-sectional view of a portion of the suction part according to one example.

Figure 8a is a perspective view of a support frame module detachable from the main body according to an example.

Figure 8b is an exploded perspective view of a support frame module according to an example.

Figure 9 is a cross-sectional view of a suction part through which pollutants are sucked according to an example.

Figure 10 is a cross-sectional view of a suction part through which pollutants are sucked according to an example.

Hereinafter, the structure and operation of the invention will be described in detail through examples in the accompanying drawings.

The terms used in this specification will be briefly explained, and the present invention will be described in detail.

The terms used in the present invention are general terms that are currently widely used as much as possible while considering the functions in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than simply the name of the term.

When it is said that a part "includes" a certain element throughout the specification, this means that, unless specifically stated to the contrary, it does not exclude other elements but may further include other elements.

Additionally, terms such as “first, second,” etc. are used not in a limiting sense but for the purpose of distinguishing one component from another component.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts unrelated to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Meanwhile, the terms "upper side", "lower side", and "front-back direction" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

1 is a side view of a cleaning device according to an example. Figure 2 is a bottom view of a cleaning device according to an example.

The description of the cleaning device 1 according to this embodiment focuses on a robot cleaning device that can independently perform cleaning work according to a preset method without relying on the user's manual operation. However, the present disclosure is not limited thereto, and the cleaning device 1 according to the present invention may be applied to any cleaning device operated manually by a user.

Referring to Figures 1 and 2, the cleaning device 1 according to one example includes a main body 10, a traveling part 20 capable of moving the main body 10 along one plane, and a surface to be cleaned (H; It may include a suction unit 30 for sucking foreign substances disposed on the surface (see FIG. 9) and a dust collection container (not shown) for receiving foreign substances sucked from the surface to be cleaned (H).

The main body 10 according to one example may form the outer shape of the cleaning device 1. As an example, the main body 10 may be provided in the shape of a housing including a receiving space therein. At this time, the main body 10 can accommodate components for the cleaning device 1 to perform cleaning work in a space accommodated therein. For example, a dust collection container (not shown), which will be described later, may be detachably accommodated inside the main body 10. At this time, the internal space of the main body 10 may be in communication with the outside. Accordingly, as the cleaning device 1 runs, the air or small waste collected through the suction part 30 can pass through the internal space of the main body 10 and be collected in a dust collection container (not shown) that is detachably coupled. there is.

As an example, the main body 10 may collide with various obstacles provided in an area where the cleaning device 1 travels, for example, indoors. Accordingly, the main body 10 may include a high-rigidity material to prevent damage due to collision. Additionally, the main body 10 may include a lightweight material. Accordingly, the power required for running the cleaning device 1 can be reduced. For example, the main body 10 may include synthetic resin such as reinforced plastic.

A user interface may be provided on the outside of the main body 10. The user can control the operation of the cleaning device 1 by manipulating the user interface. Additionally, the user interface may display information about the status of the cleaning device 1 and the area in which the cleaning device 1 is traveling.

In the illustrated embodiment, the main body 10 may have a circular cross-section and a disk shape with a predetermined height in the vertical direction. Accordingly, when the cleaning device 1 collides with various obstacles while traveling, the main body 10 can rotate and travel in various directions.

The traveling unit 20 can move the main body 10 along one plane, for example, the XY plane. The driving unit 20 according to one example may include one or more driving wheels and a driving motor for generating power transmitted to the driving wheels. As an example, the traveling unit 20 may be rotatably coupled to the lower side of the main body 10. For example, a plurality of traveling units 20 may be provided. At this time, the rotation speed and rotation direction of each traveling unit 20 can be controlled independently of each other. Accordingly, the main body 10 can move forward, backward, turn left, or turn right on one plane (XY plane).

According to one example, a travel sensor unit 25 may be disposed to detect information about the path along which the cleaning device 1 travels. As an example, the travel sensor unit 25 may be located in a direction in which the cleaning device 1 is expected to travel. For example, the travel sensor unit 25 is disposed above the main body 10 and can detect information about the environment on the front side of the cleaning device 1. The travel sensor unit 25 according to one example may be provided in any form capable of detecting information about the environment of the path along which the cleaning device 1 is driven or to be driven. For example, the driving sensor unit 25 may include a LiDAR sensor for detecting the distance to an obstacle, or a camera capable of detecting image information.

A dust collection container (not shown) may store waste collected while the cleaning device 1 travels. For example, a dust collection container (not shown) may contain contaminants disposed on the surface to be cleaned (H). A dust collection container (not shown) according to one example may be detachably coupled to the main body 10. The user can remove the dust collection container (not shown) from the main body 10 to easily remove contaminants contained within the dust collection container (not shown).

A dust collection container (not shown) according to an example may include a predetermined accommodation space therein. The receiving space may communicate with a space formed inside the main body 10, for example, a moving passage. Contaminants collected through the suction unit 30 may pass through a moving passage formed inside the main body 10 and enter the inside of the dust collection container (not shown).

The suction unit 30 can suck in contaminants using a suction motor (not shown) that generates the suction force necessary to suck in foreign substances on the surface to be cleaned (H). Pollutants that are inhaled through the suction unit 30 may have different sizes, shapes, and materials. As an example, the first contaminant (T ₁ ; see FIG. 9) that is sucked through the suction unit 30 adheres to the surface to be cleaned (H) and is not easy to separate, but the second contaminant (T), which will be described later, ₂ ; see Figure 10) can be provided in a smaller size. For example, the first contaminant (T ₁ ) may include hair fallen from the human body, fiber strands separated from clothes, etc. Among the contaminants collected through the suction unit 30, contaminants such as hair, fiber strands, or pet hair have the property of easily sticking to objects with a rough surface due to electrostatic attraction. At the same time, the contaminants have the property of not being easily separated from the surface of the object to which they are adhered. Therefore, in daily life, when the contaminant adheres to the surface of a fibrous object such as a carpet or rug, it is not easy to separate it.

In addition, the second contaminant (T ₂ ; see FIG. 10 ) that is sucked through the suction unit 30 is easy to separate from the surface to be cleaned (H), but may have a larger shape than the first contaminant (T ₁ ). You can. For example, the second contaminant (T ₂ ) may be a small toy or food that does not adhere to the surface to be cleaned (H).

According to one example, the size and suction pressure of the suction part 30 may be different depending on the type of contaminant that passes through the suction part 30 and is inhaled. For example, in order to change the size of the suction part 30, the suction area of the suction part 30 can be increased. Additionally, the output of the suction motor (not shown) may be increased to increase the suction pressure of the suction unit 30. However, when the output of the suction motor (not shown) is the same, the suction pressure of the suction unit 30 is increased by reducing the suction area of the suction unit 30, or by increasing the suction area of the suction unit 30, The suction pressure of the suction unit 30 may be reduced. Hereinafter, when the output of the suction motor (not shown) is the same, the first suction part 31 through which the first contaminant (T ₁ ) passes through the suction part 30 and the first suction part 31 through which the second contaminant (T ₂ ) pass through. The technical features of distinguishing the second suction part 32 and adjusting the suction area and suction pressure of the first suction part 31 and the second suction part 32 differently will be described in more detail.

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 the suction part 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 part according to an example. Figure 7b is an enlarged cross-sectional view of a portion of the suction part according to one example.

Referring to FIGS. 3 to 7B, the suction unit 30 according to one example includes a first suction unit 31, a second suction unit 32, and the first suction unit 31 and the second suction unit 32. It may include a partition 33 disposed therebetween. As an example, the first suction part 31 on which the roller unit 100, which will be described later, is disposed, has a suction area less than the suction area of the second suction part 32, but the first suction part 31 has a suction area less than that of the second suction part 32. It may be provided with a suction pressure exceeding the suction pressure. Accordingly, the first contaminant (T ₁ : see FIG. 9), which adheres to the surface to be cleaned (H) and is not easy to separate, but has a smaller size than the second contaminant (T ₂ ), is attached to the first suction part 31. can be passed. Additionally, the second suction part 32 may have a suction area that exceeds that of the first suction part 31, but may have a pressure that is less than the suction pressure of the first suction part 31. Accordingly, it is easy to separate from the surface to be cleaned (H), but the second contaminant (T ₂ : see FIG. 10) having a larger shape than the first contaminant (T ₁ ) may pass through the second suction part 32. You can.

The first suction part 31 according to one example is a suction port extending along the first direction (X direction) and may be disposed at the lower part of the main body 10. The first suction unit 31 may be in fluid communication with the dust collection unit (not shown) using a moving passage 34 connected to the dust collection unit (not shown). Accordingly, the first contaminant (T ₁ ) sucked through the first suction unit 31 may pass through the moving passage 34 and be accommodated in the dust collection unit (not shown).

As an example, the first suction part 31 may include a rectangular opening extending along the first direction (X direction). However, the present disclosure is not limited thereto, and the first suction part 31 may include any opening shape through which the first contaminant T ₁ can pass.

According to one example, since the first contaminant (T ₁ ), which is adhered to the surface to be cleaned (H) and is not easy to separate, must pass through the first suction part 31, the first suction part 31 has a relatively high Suction pressure may be provided. When the same suction motor (not shown) is used in the first suction part 31 and the second suction part 32, the suction area of the first suction part 31 is larger than the suction area of the second suction part 32. As it becomes smaller, the suction pressure of the first suction part 31 may increase. According to one example, as the roller unit 100 on which the brush 200 is disposed is disposed in the first suction unit 31, the suction area of the first suction unit 31 may decrease and the suction pressure may increase.

The roller unit 100 according to one example may be rotatably connected to the main body 10 about an axis 110 extending along a first direction (X direction). The roller unit 100 according to one example is attached to a side frame 11 with both ends provided in the main body 10 so as to be rotatable in either a clockwise or counterclockwise direction about an axis 110. It can be supported to be rotatable. As an example, the roller unit 100 may rotate around one axis 110 at a speed of 500 rpm or more and 1,500 rpm or less.

The driving unit 300 according to one example may generate power and transmit it to the roller unit 100 so that the roller unit 100 can rotate around one axis 110. At this time, the control unit 700 may control the rotation speed and direction of the roller unit 100 by controlling the drive unit 300. As an example, the sensor unit 500 may be disposed at one or more of each end in the direction in which the roller unit 100 extends. The sensor unit 500 can detect rotation-related information, such as the rotation direction and rotation angle of the roller unit 100.

Additionally, the roller unit 100 according to one example may be formed to extend in one direction, for example, along a first direction (X direction). As an example, the first direction (X direction) may be perpendicular to the direction in which the cleaning device 1 advances, for example, the second direction (Y direction). Accordingly, when the cleaning device 1 moves forward, the area swept by the brush 200 disposed on the outer peripheral surface of the roller unit 100, which will be described later, may increase. Accordingly, the cleaning efficiency of the cleaning device 1 can be improved.

Additionally, the roller unit 100 according to one example may have an arbitrary shape that can rotate around one axis between the side frames 11. For example, the roller unit 100 may have a circular cross-section 120 cut along the second direction (Y direction) perpendicular to the first direction (X direction). At this time, the radius (R) of the circular shape 120 measured from the center (O) of the roller unit 100 may be 6 mm or more and 18 mm or less. In the above-described embodiment, the cross-sectional shape of the roller unit 100 is described as circular, but the present disclosure is not limited thereto. According to another example, the cross-sectional shape of the roller unit 100 may have a polygonal shape.

According to one example, the roller unit 100 may include a high-rigidity material capable of supporting the brush 200, which will be described later. For example, the roller unit 100 may include synthetic resin such as reinforced plastic. As an example, the outer peripheral surface 130 of the roller unit is a support member on which one end of the brush 200 can be supported. Additionally, the outer peripheral surface 130 of the roller unit 100 may set a boundary range through which contaminants of a predetermined size can pass.

The brush 200 may be disposed on the outer peripheral surface 130 of the roller unit 100. According to one example, the brush 200 may be a plurality of brush structures extending along the radial direction of the roller unit 100. As an example, the length (L) of the brush 200 extending from the outer peripheral surface 130 of the roller unit 100 along the radial direction of the roller unit 100 may be 2.9 mm or more and 8.7 mm or less, but the present disclosure does not apply to this. It is not limited.

One end of the brush 200 according to one example may be arranged to be fixed to the outer peripheral surface 130 of the roller unit 100. Additionally, the other end of the brush 200 may be arranged to face the surface to be cleaned (H). As an example, the brush 200 may include an elastic material having a predetermined elastic force. At this time, the length L of the brush 200 may be determined so that the other end of the brush 200 can be partially exposed to the outside of the lower frame 13 of the main body 10. Accordingly, the other end of the brush 200 may be arranged to contact the surface to be cleaned (H). When the other end of the brush 200 is in contact with the surface to be cleaned (H), the brush 200 may be deformed to correspond to the shape of the surface to be cleaned (H). At this time, contaminants such as hair located on the surface to be cleaned (H) may adhere to the modified brush 200 and be moved to the first suction part 31.

As described above, suction pressure may be generated through a suction motor (not shown) to suck the contaminants moved to the first suction unit 31 into the moving passage 34 provided inside the main body 10. At this time, when the suction area of the first suction part 31 decreases, the suction pressure of the first suction part 31 may increase. According to one example, the partition 33 and the brush 200 are arranged to overlap each other, thereby reducing the suction area of the first suction part 31.

The partition 33 according to one example extends along the first direction (X direction) and is disposed between the first suction part 31 and the second suction part 32 to form the first suction part 31 and the second suction part 32. The boundary area between the two suction units 32 can be defined. As an example, the partition 33 may be provided in a flat shape extending along the first direction (X direction). At this time, the partition 33 is inclined to have a predetermined angle, for example, the first angle α, with one plane (XY plane) along which the cleaning device 1 moves, for example, the surface to be cleaned (H). It can be. As an example, the first angle α may be 15 degrees or more and 75 degrees or less, but the present disclosure is not limited thereto.

As an example, the partition 33 is inclined to have a first angle α with one plane (XY plane) along which the cleaning device 1 moves, for example, the surface to be cleaned (H), so that the first suction is performed. The paths of the first suction flow path (W ₁ ) and the second suction flow path (W ₁ ) sucked toward the unit 31 and the second suction part 32 may be guided. For example, the first suction flow path (W ₁ ) is directed toward the first suction portion 31 along one side 331 of the partition 33 having a first angle α with the surface to be cleaned (H). You can move. In addition, the second suction flow path (W ₁ ) moves toward the second suction portion 32 along the other side 332 of the partition 33 having a first angle α with the surface to be cleaned (H). You can.

Additionally, the partition 33 according to one example may be arranged to be spaced apart from the surface to be cleaned (H) at a predetermined height. As an example, the partition portion 33 may be arranged to overlap a portion of the fiber material (S) disposed on the upper surface of the surface to be cleaned (H) while maintaining a predetermined distance from the surface to be cleaned (H). For example, one end 335 of the partition 33 arranged to face the surface to be cleaned (H) is positioned in the thickness direction (Z direction) of the cleaning device 1 perpendicular to the first direction (X direction). Accordingly, it may be disposed at a height C of 0.5 mm or more and 3 mm or less along the thickness direction (Z direction) of the cleaning device 1 compared to the other end of the brush 200 located at the lowest end.

According to one example, one end 335 of the partition 33 arranged to face the surface to be cleaned (H) overlaps a portion of the fiber material (S) while maintaining a predetermined distance from the surface to be cleaned (H). It can be arranged as much as possible. Accordingly, one end 335 of the partition 33 moves in contact with a portion of the fiber material S, thereby allowing the first contaminant T ₁ (see FIG. 9) to be additionally separated from the fiber material S. there is. However, the present disclosure is not limited to this, and one end 335 of the partition 33 may be arranged to be spaced apart from the fiber material S along the thickness direction (Z direction) of the cleaning device 1.

The partition unit 33 according to one example may be arranged to be spaced apart from the roller unit 100 with a first gap D therebetween. For example, the first gap D may be 1 mm or more and 5.2 mm or less, but the present disclosure is not limited thereto. As the partition portion 33 and the roller portion 100 are arranged to be spaced apart from each other with the first gap D in between, the boundary of the first suction portion 31 through which the first contaminant T ₁ can pass. Areas can be set. As an example, the outer peripheral surface 130 of the roller unit 100 and one surface 331 of the partition unit 33 disposed to face the outer peripheral surface 130 of the roller unit 100 have a first surface having a predetermined size. A boundary range through which pollutants (T ₁ ) can pass can be set. At this time, the first distance D at which the roller part 100 and the partition part 33 are spaced apart is circular at the distance between the center O of the roller part 100 and one side 331 of the partition part 33. It can be set to the distance minus the radius (R) of the shape 120. That is, the first distance D between the roller unit 100 and the partition unit 33 may be the distance between the outer peripheral surface 130 of the roller unit 100 and one surface 331 of the partition unit 33. there is. Therefore, as shown in FIG. 9, the first contaminant (T ₁ ) having a length less than the first gap (D) at which the roller unit 100 and the partition unit 33 are spaced apart is in the first suction unit ( 31) and can be transferred to the inside of the main body 10.

According to one example, the length (L) of the brush 200 extending from the outer peripheral surface 130 of the roller unit 100 along the radial direction of the roller unit 100 is such that the roller unit 100 and the partition portion 33 are The first spaced apart distance D may be exceeded. Accordingly, a portion of the brush 200 and the partition portion 33 may be arranged to overlap. As a portion of the brush 200 and the partition 33 are arranged to overlap, the suction area of the first suction portion 31 can be reduced. According to one example, the brush 200 and the partition 33 may be arranged to overlap within a predetermined first range K. For example, the first range K where the brush 200 and the partition 33 overlap may be 0.3 mm or more and 2.5 mm or less. It is disposed to overlap the brush 200 and the partition 33, and as the suction area of the first suction part 31 decreases, the suction pressure of the first suction part 31 may increase. In addition, at this time, the first contaminant (T ₁ ) passing through the reduced first suction part 31 can pass through the first suction part 31 while deforming the brush 200 having elastic force, so that the roller unit The area of the first suction part 31 can be maintained within the first distance D between the 100 and the partition 33. Therefore, as shown in FIG. 9, the first contaminant (T ₁ ), such as animal hair with strong adhesiveness, can be sucked into the first suction part 31.

The second suction part 32 according to one example is a suction port extending along the first direction (X direction) and may be disposed at the lower part of the main body 10. The second suction unit 32 may be in fluid communication with the dust collection unit (not shown) using a moving passage 34 connected to the dust collection unit (not shown). Accordingly, the second contaminant (T ₂ ) sucked through the second suction unit 32 may pass through the moving passage 34 and be accommodated in the dust collection unit (not shown).

As an example, the second suction part 32 may include a rectangular opening extending along the first direction (X direction). However, the present disclosure is not limited thereto, and the second suction part 32 may include any opening shape through which the second contaminant T ₂ can pass.

According to one example, it is easy to separate from the surface to be cleaned (H), but because the second contaminant (T ₂ ), which has a larger shape than the first contaminant (T ₁ ), must pass through the second suction part (32). , the second suction part 32 may have a relatively large suction area and a relatively low suction pressure compared to the first suction part 31. As an example, the second suction part 32 has a predetermined width (P), for example, a width (P) of 4 mm or more and 20 mm or less, along the second direction (Y direction) perpendicular to the first direction (X direction). can be provided.

According to one example, the boundary range through which the second contaminant (T ₂ ) can pass in the second suction part 32 may be the width (P) of the second suction part 32. As described above, the boundary range through which the first contaminant (T ₁ ) can pass in the first suction unit 31 is the outer peripheral surface 130 of the roller unit 100 and the outer peripheral surface 130 of the roller unit 100. It can be defined by the first gap D, which is the separation distance between one side 331 of the partition 33 arranged to face. At this time, the width P of the second suction part 32 may exceed the first gap D, which is the separation distance between the roller part 100 and the partition part 33. Accordingly, the second suction part 32 may have a relatively large suction area compared to the first suction part 31. On the other hand, since suction pressure can be formed in the first suction part 31 and the second suction part 32 by the same suction motor (not shown), the suction of the second suction part 32, which has a relatively large suction area, The pressure may be relatively small. Therefore, it is easy to separate from the surface to be cleaned (H), but the second contaminant (T ₂ ; see FIG. 10 ), which has a shape larger than the first contaminant (T ₁ ), passes through the second suction part 32. Can be inhaled.

Figure 8a is a perspective view of a support frame module detachable from the main body according to an example. Figure 8b is an exploded perspective view of a support frame module according to an example.

Referring to FIGS. 3, 5, 8A, and 8B, the support frame module 800 according to one example may be detachably disposed on the main body 10. As an example, the support frame module 800 includes a support frame 810 in addition to the first suction part 31, the second suction part 32, the partition part 33, the roller part 100, and the brush 200, It may include a bearing part 820 and a fastening part (not shown).

The support frame 810 may be detachably disposed on the front lower side of the main body 10. According to one example, when the main body 10 is moved by the running part 20, the lower side of the support frame 810 may be in contact with the surface to be cleaned or may be spaced a predetermined distance and move together with the main body 10. .

The support frame 810 according to one example may be formed as a frame including a receiving space therein. As an example, the support frame 810 is coupled with the main body 10 and moves together, and may have any shape capable of accommodating the roller unit 100 therein. For example, the support frame 810 may include a hollow polygonal pillar shape extending long in the left and right directions.

A first suction part 31, a second suction part 32, and a partition part 33 may be disposed in the receiving space of the support frame 810 according to one example. As an example, the partition 33 may extend along one direction to divide the receiving space of the support frame 810. For example, both ends of the partition 33 may be supported to be fixed to both sides of the support frame 810, respectively. Accordingly, the first suction part 31 and the second suction part 32 may be respectively disposed in the space between the partition part 33 and the support frame 810. According to one example, the support frame 810 and the partition 33 may be provided as one piece, but the present disclosure is not limited thereto.

The roller unit 100 may be detachably connected to the first suction unit 31 provided in the support frame 810 according to one example. As an example, the roller unit 100 may be rotatably connected to the support frame 810 about one axis 110. For example, both ends of the roller unit 100 may be detachably connected to the side of the support frame 810. At this time, the bearing unit 820 may be disposed at both ends of one axis 110, which is the central axis of the roller part 100, to support the one axis 110.

According to one example, when the roller unit 100 is connected to the support frame 810, a fastening part (not shown) may be fastened to the support frame 810 so that the roller unit 100 is fixed to the support frame 810. there is. As an example, the fastening part (not shown) may be provided in the form of a cap cover that is disposed at both ends of the roller unit 100 and fastened to the support frame 810.

Figure 9 is a cross-sectional view of a suction part through which pollutants are sucked according to an example. Figure 10 is a cross-sectional view of a suction part through which pollutants are sucked according to an example.

Referring to FIGS. 7B and 9 , the surface to be cleaned (H) on which the cleaning device 1 according to an example moves may include a fibrous material (S) such as a carpet or rug. As an example, the first contaminant (T ₁ ) with strong adhesion, for example, hair, fiber strands, or pet hair _, is an object with a rough surface due to electrostatic attraction; For example, it can easily adhere to the fiber material (S) included in carpets or rugs. At the same time, the first contaminant (T ₁ ) may not be easily separated from the surface of the adhered fiber material (S).

One end of the brush 200 according to one example may be arranged to be fixed to the outer peripheral surface 130 of the roller unit 100. Additionally, the other end of the brush 200 may be arranged to face the surface to be cleaned (H). As an example, the brush 200 may include an elastic material having a predetermined elastic force. At this time, the length L of the brush 200 may be determined so that the other end of the brush 200 can be partially exposed to the outside of the lower frame 13 of the main body 10. Accordingly, the other end of the brush 200 may be arranged to contact the surface to be cleaned (H) and the fiber material (S) disposed on the top of the surface to be cleaned (H). When the other end of the brush 200 is in contact with the surface to be cleaned (H) and the fiber material (S), the brush 200 may be deformed to correspond to the shape of the surface to be cleaned (H) and the fiber material (S). At this time, the first contaminant (T ₁ ), such as hair located on the surface to be cleaned (H) and the fiber material (S), adheres to the modified brush 200 and can be moved to the first suction part 31. there is.

As described above, the partition 33 may be arranged to overlap a portion of the fiber material S while maintaining a predetermined distance from the surface to be cleaned (H). According to one example, as shown in FIG. 7B, one end 335 of the partition 33 arranged to face the surface to be cleaned (H) is maintained at a predetermined distance from the surface to be cleaned (H), and the fiber material It can be arranged to overlap a portion of (S). Accordingly, one end 335 of the partition 33 moves in contact with a portion of the fiber material S, thereby allowing the first contaminant T ₁ to be additionally separated from the fiber material S. However, the present disclosure is not limited to this, and one end 335 of the partition 33 may be arranged to be spaced apart from the fiber material S along the thickness direction (Z direction) of the cleaning device 1.

Additionally, a portion of the brush 200 disposed on the outer peripheral surface 130 of the roller unit 100 and the partition portion 33 may be arranged to overlap. As a part of the brush 200 and the partition 33 are arranged to overlap, the suction area of the first suction part 31 can be reduced. It is disposed to overlap the brush 200 and the partition 33, and as the suction area of the first suction part 31 decreases, the suction pressure of the first suction part 31 may increase. In addition, the first contaminant (T ₁ ) passing through the reduced first suction part 31 can pass through the first suction part 31 while deforming the brush 200 having elastic force, so the roller part ( The area of the first suction part 31 can be maintained within the first distance D between the 100) and the partition 33. Therefore, the first contaminant (T ₁ ), such as animal hair with strong adhesiveness, can be inhaled through the first suction part 31.

Referring to FIGS. 7B and 10 , according to one example, a second contaminant (T ₂ ) that is easy to separate from the surface to be cleaned (H) but has a larger shape than the first contaminant (T ₁ ), for example. For example, secondary contaminants (T ₂ ) such as cereals and nano blocks may not easily adhere to the fiber material (S) included in objects with a rough surface, such as carpets or rugs, due to electrostatic attraction. Therefore, the second contaminant (T ₂ ) can be easily separated from the surface of the adhered fiber material (S).

According to one example, the boundary range through which the first contaminant (T ₁ ) or the second contaminant (T ₂ ) can pass in the first suction unit 31 is the outer peripheral surface 130 of the roller unit 100 and the roller. It may be defined by the first gap D, which is the separation distance between the outer peripheral surface 130 of the unit 100 and one surface 331 of the partition 33 arranged to face each other. Accordingly, when the size of the second contaminant (T ₂ ) exceeds the first gap (D), the second contaminant (T ₂ ) cannot be sucked in by the first suction unit (31).

According to one example, the boundary range through which the second contaminant (T ₂ ) can pass in the second suction part 32 may be the width (P) of the second suction part 32. At this time, the width P of the second suction part 32 may exceed the first gap D, which is the separation distance between the roller part 100 and the partition part 33. Accordingly, the second suction part 32 may have a relatively large suction area compared to the first suction part 31. On the other hand, since suction pressure can be formed in the first suction part 31 and the second suction part 32 by the same suction motor (not shown), the suction of the second suction part 32, which has a relatively large suction area, The pressure may be relatively small. Therefore, it is easy to separate from the surface to be cleaned (H), but the second contaminant (T ₂ ) having a larger shape than the first contaminant (T ₁ ) can be sucked through the second suction part 32. .

A cleaning device according to an example includes a main body 10 movable along one plane, extending along a first direction, and a first suction part 31 disposed below the main body, extending along the first direction. , a second suction part 32 disposed below the main body portion, a partition 33 extending along the first direction and disposed between the first suction portion and the second suction portion, and the first suction portion. A roller unit 100 disposed in the unit, extending along the first direction and rotatable about an axis extending along the first direction, a brush extending a predetermined length from the outer peripheral surface of the roller unit ( 200), a driving part 300 that generates power so that the roller part rotates about the one axis, the outer peripheral surface of the roller part and the partition part are arranged to be spaced apart from each other with a first gap, and the predetermined length of the brush is The first interval may be exceeded.

The partition 33 may be disposed inclined so as to have a first angle with the one plane.

The first angle may be 15 degrees or more and 75 degrees or less.

One end of the partition 33 may be disposed at a height of 0.5 mm to 3 mm above the other end of the brush 200 located at the lowest end along the thickness direction of the cleaning device.

The suction pressure of the first suction part 31 may exceed the suction pressure of the second suction part 32.

The width of the second suction part 32 along the second direction perpendicular to the first direction may exceed the first gap between the outer peripheral surface of the roller part 100 and the partition part 33. .

The first gap between the outer peripheral surface of the roller unit 100 and the partition unit 33 may be 1 mm or more and 5.2 mm or less.

The width of the second suction part 32 along the second direction perpendicular to the first direction may be 4 mm or more and 20 mm or less.

The first suction part 31, the second suction part 32, and the partition part 33 are disposed, and further include a support frame 810 that is detachable from the main body 10, and the roller The unit 100 may be arranged to be rotatable about one axis with respect to the support frame 810 .

The support frame 810 and the partition 33 may be provided as one piece.

The roller unit 100 may be arranged to be detachable from the support frame 810.

It may further include bearing parts 820 disposed at both ends of the one axis and supporting the one axis.

The cross section of the roller unit 100 cut along the second direction perpendicular to the first direction has a circular shape, the radius of the circular shape is 6 mm or more and 18 mm or less, and the roller unit extends along the radial direction of the roller unit. The length of the brush may be 2.9 mm or more and 8.7 mm or less.

The roller unit 100 may rotate around the axis at a speed of 500 rpm or more and 1,500 rpm or less.

It may further include a sensor unit 500 that detects the rotation speed of the roller unit and a control unit 700 that receives the rotation speed of the roller unit from the sensor unit and controls the operation of the drive unit.

The above-described embodiments are merely illustrative, and various modifications and other equivalent embodiments can be made by those skilled in the art. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the invention described in the following patent claims.

Claims

A main body portion 10 movable along one plane;

a first suction part 31 extending along a first direction and disposed below the main body to suck in contaminants;

a second suction part 32 extending along the first direction and disposed below the main body to suck in contaminants;

a partition 33 extending along the first direction and disposed between the first suction part and the second suction part;

a roller unit 100 disposed in the first suction unit, extending along the first direction, and rotatable about an axis extending along the first direction;

A brush 200 extending from the outer peripheral surface of the roller unit to a first length;

a driving unit 300 that generates power to rotate the roller unit about the one axis;

The outer peripheral surface of the roller portion and the partition portion are arranged to be spaced apart from each other with a first gap therebetween,

The first length of the brush extending from the outer peripheral surface of the roller unit exceeds the first interval,

cleaning device.
According to claim 1,

The partition 33 is disposed inclined at a first angle with the one plane,

cleaning device.
According to claim 2,

The first angle is 15 degrees or more and 75 degrees or less,

cleaning device.
The method according to any one of claims 1 to 3,

One end of the partition 33 is disposed at a height of 0.5 mm or more and 3 mm or less above the other end of the brush 200 located at the lowest end along one direction toward the one plane,

cleaning device.
The method according to any one of claims 1 to 4,

The suction pressure of the first suction part 31 exceeds the suction pressure of the second suction part 32,

cleaning device.
According to any one of claims 1 to 5,

The width of the second suction part 32 along the second direction perpendicular to the first direction exceeds the first gap between the outer peripheral surface of the roller part 100 and the partition part 33,

cleaning device.
According to any one of claims 1 to 6,

The first gap between the outer peripheral surface of the roller part 100 and the partition part 33 is 1 mm or more and 5.2 mm or less,

cleaning device.
According to any one of claims 1 to 7,

The width of the second suction part 32 along the second direction perpendicular to the first direction is 4 mm or more and 20 mm or less,

cleaning device.
According to any one of claims 1 to 8,

It further includes a support frame 810 on which the first suction part 31, the second suction part 32, and the partition 33 are disposed, and which is detachable from the main body 10,

The roller unit 100 is arranged to be rotatable with respect to the support frame 810,

cleaning device.
According to clause 9,

The support frame 810 and the partition 33 are provided as one piece,

cleaning device.
According to clause 9,

The roller unit 100 is arranged to be detachable from the support frame 810.

cleaning device.
According to claim 11,

It further includes a bearing part 820 disposed at both ends of the one axis and supporting the rotation of the roller part rotating around the one axis.

cleaning device.
According to any one of claims 1 to 12,

A cross-section of the roller unit 100 cut along a second direction perpendicular to the first direction has a circular shape,

The radius of the circular shape is 6 mm or more and 18 mm or less,

The length of the brush extending from the outer peripheral surface of the roller unit along the radial direction of the roller unit is 2.9 mm or more and 8.7 mm or less,

cleaning device.
According to any one of claims 1 to 13,

The roller unit 100 rotates around the single axis at a speed of 500 rpm or more and 1500 rpm or less,

cleaning device.
According to any one of claims 1 to 14,

A sensor unit 500 that detects the rotation speed of the roller unit; and

Further comprising a control unit 700 that receives the detected rotational speed of the roller unit from the sensor unit and controls the operation of the drive unit.

cleaning device.