Cleaning module and cleaning device

Abstract

Cleaning Module and Cleaning Device This disclosure relates to a cleaning module and a cleaning device. The cleaning module comprises: a pivoting arm (110) and a cleaning head (120). The pivoting arm has a first end configured to be pivotally mounted on a target element and a second end on which the cleaning head is rotatably mounted. The radius of rotation of the cleaning head is a, the distance between a rotation shaft of the pivoting arm and a rotation shaft of the cleaning head is b, and a ≥ b. The cleaning module according to this disclosure improves the cleaning effect. Fig. 1.

Description

Title of the invention: Cleaning module and cleaning device technical field

[0001] This disclosure relates to an area of ​​smart home technology, and in particular to a cleaning module and a cleaning device. Prior art

[0002] With the development of modern society, more and more people are focused on work and have little time to clean their homes. However, daily cleaning and maintaining domestic hygiene affect people's quality of life. In order to save time and maintain home hygiene, more and more people are starting to buy cleaning appliances to quickly and easily maintain family hygiene. These cleaning appliances can automatically clean the floor of a room thanks to a certain degree of artificial intelligence.

[0003] Most prior art cleaning devices are robotic sweepers. When the robotic sweeper performs a cleaning task, a brush head of the cleaning robot can effectively clean the floor.

[0004] It should be noted that the information disclosed in the prior art section above is used solely to enhance understanding of the prior art of this disclosure and may therefore include information that does not constitute prior art known to the ordinary person skilled in the art. Description of the invention

[0005] This disclosure is intended to provide a cleaning module and a cleaning device.

[0006] According to one aspect of this disclosure, a cleaning module is provided. The cleaning module includes:

[0007] a pivoting arm, with a first end configured to be pivotally mounted on a target element and a second end; and

[0008] a cleaning head, which is rotatably mounted on the second end of the pivoting arm,

[0009] a radius of rotation of the cleaning head being a, a distance between a rotation shaft of the pivoting arm and a rotation shaft of the cleaning head is b, and a> b.

[0010] In an embodiment given by way of example in this disclosure, a / b = 1 to 2.

[0011] In an embodiment given by way of example in this disclosure, a = 60 mm to 80 mm.

[0012] In an embodiment given by way of example in this disclosure, b = 40 mm to 70 mm.

[0013] In an embodiment given by way of example in this disclosure, the cleaning head comprises a plurality of brush claws having the same length.

[0014] According to another aspect of this disclosure, a cleaning device is provided. The cleaning device includes:

[0015] a device body; and

[0016] the cleaning module described above, in which the pivoting arm is pivotally mounted on the device body, and the pivoting arm can be positioned in a retracted position and a deployed position relative to the device body by pivoting.

[0017] In an embodiment given by way of example in this disclosure, the device body is circular in shape, and a distance between a center of the device body and the rotation shaft of the pivoting arm is c, and c / b = 2 to 4.

[0018] In an embodiment given by way of example in this disclosure, the device body is circular in shape, a diameter of the device body is d, and d / b = 4 to 10.

[0019] In an embodiment given by way of example in this disclosure, the device body is circular in shape, a diameter of the device body is d; and when the pivoting arm is located in the deployed position, a distance between the rotation shaft of the cleaning head and an axis of symmetry of the cleaning device in a direction of advancement of the cleaning device is e, and e + a > d / 2.

[0020] In an embodiment given by way of example in this disclosure, a distance between the rotation shaft of the cleaning head and the axis of symmetry of the cleaning device in a direction perpendicular to a direction of advancement of the cleaning device is / , and / + a > d / 2.

[0021] According to the cleaning module provided by this disclosure, the cleaning head can pivot within a predefined angle range under the drive of the pivoting arm, so as to perform a cleaning operation at the target position. The radius of rotation a of the cleaning head is greater than the distance b between the rotation shaft of the pivoting arm and the rotation shaft of the cleaning head, which increases the cleaning radius of the cleaning head, thereby increasing the cleaning area and the cleaning effect of the cleaning head. When the pivoting arm pivots to a different position, given that the radius of rotation a of the cleaning head is greater than the distance b between the rotation shaft of the pivoting arm and the rotation shaft of the cleaning head, the position corresponding to the rotation shaft of the pivoting arm can be covered by a cleaning zone formed by the cleaning head, thus improving the cleaning effect.

[0022] It should be understood that the general description above and the detailed description below are made solely by way of example and are not limiting for this disclosure. Brief description of the drawings

[0023] The accompanying drawings are incorporated into the specification and form part of the specification, illustrate embodiments consistent with this disclosure, and together with the description, are used to explain the principles of this disclosure. Obviously, the accompanying drawings described below are only embodiments of this disclosure, and to a person skilled in the art, other accompanying drawings can be obtained on the basis of these accompanying drawings without creative work.

[0024] [Fig-1] Fig. 1 is a schematic diagram of a cleaning module according to a method of implementing this disclosure;

[0025] [Fig.2] Fig.2 is a schematic diagram of the front view of a cleaning device according to one embodiment of this disclosure, wherein a pivoting arm is located in a retracted position;

[0026] [Fig.3] Fig.3 is a schematic diagram of the underside of a cleaning device according to one embodiment of this disclosure, wherein a pivoting arm is located in a retracted position;

[0027] [Fig.4] Fig.4 is a schematic diagram of the front view of a cleaning device according to one embodiment of this disclosure, wherein a pivoting arm is located in a deployed position;

[0028] [Fig. 5] Fig. 5 is a schematic diagram of the underside of a cleaning device according to one embodiment of this disclosure, where a pivoting arm is located in a retracted position; and

[0029] [Fig. 6] The [Fig. 6] is a schematic diagram of a pivoting arm, located in a retracted position and a deployed position relative to the device body, in a cleaning device according to an embodiment of this disclosure.

[0030] Reference numbers:

[0031] 10. cleaning device;

[0032] 100. cleaning module; 110. swiveling arm; 120. cleaning head; 121. part of assembly; 122. brush claw;

[0033] 200. Device body. Description of the implementation methods

[0034] The following embodiments, given by way of example, are described in more detail with reference to the accompanying drawings. However, the embodiment examples can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein; rather, these implementations are provided in such a way that this disclosure is complete and exhaustive and fully represents the concepts of the embodiment examples to a person skilled in the art. The same reference numbers in the drawings represent identical or similar structures, and their detailed description will therefore be omitted.

[0035] Although relative terms such as "superior" and "lower" are used in this specification to describe a relative relationship of one component in the illustration with another component, these terms are used in this specification only for convenience, e.g., depending on the orientation of the examples shown in the drawings. It is understood that if the device in the illustration is reversed, a described "superior" component will become a "lower" component. When a structure is "on" other structures, this may mean that the structure is formed entirely on the other structures, or that the structure is "directly" disposed on the other structures, or that the structure is "indirectly" disposed on the other structures through another structure.

[0036] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements or components, etc.; the terms "including" and "having" are used to indicate an open inclusive sense and to signify that additional elements or components, etc., may be present in addition to the listed elements or components, etc.; and the terms "first", "second", etc., are used simply as labels and are not intended to limit the quantity of their objects.

[0037] First, embodiments of the present disclosure relate to a cleaning module. As described in [Fig. 1], the cleaning module 100 comprises: a pivoting arm 110 and a cleaning head 120. The pivoting arm 110 comprises a first end and a second end; the first end of the pivoting arm 110 is configured to be pivotally mounted on a target element; the cleaning head 120 is rotatably mounted on the second end of the pivoting arm 110; and the cleaning head 120 can pivot within a predefined angle range when driven by the pivoting arm 110 to perform a cleaning operation on a target position.

[0038] A radius of rotation of the cleaning head 120 is a, a distance between a rotation shaft of the pivoting arm 110 and a rotation shaft of the cleaning head 120 is b, and a > b. A position where the rotation shaft of the pivoting arm 110 is located is a position of a center of rotation of the pivoting arm 110, and a position where the rotation shaft of the cleaning head 120 is located is a position of a center of rotation of the cleaning head 120.

[0039] In the cleaning module 100 provided by this disclosure, the cleaning head 120 can pivot within a predefined angle range under the drive of the pivoting arm 110 to perform a cleaning operation at the target position. The radius of rotation a of the cleaning head 120 is greater than the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120, which increases the cleaning radius of the cleaning head 120, thereby increasing the cleaning area and the cleaning effect of the cleaning head 120.When the pivoting arm 110 pivots to a different position, the position corresponding to the rotation shaft of the pivoting arm 110 can be covered by the cleaning area formed by the cleaning head 120 since the rotation radius a of the cleaning head 120 is greater than the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120, thus improving the cleaning effect.

[0040] In one embodiment, a ratio of the radius of rotation a of the cleaning head 120 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 is a : b = 1 to 2, for example, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, etc., which are not listed one by one in this disclosure. By defining the ratio of the radius of rotation a of the cleaning head 120 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 as being 1 to 2, the cleaning head 120 can cover the area within a pivoting range of the pivoting arm 110 and perform a cleaning operation on the area within the pivoting range of the pivoting arm 110.Furthermore, since the difference between the cleaning radius of the cleaning head 120 and the pivot radius of the swivel arm 110 is relatively small, when the cleaning head 120 performs a rotary cleaning operation, the swivel arm 110 can provide stable support, ensuring that the cleaning head 120 maintains close contact with the surface to be cleaned, thus improving the cleaning effect. Obviously, the ratio of the rotation radius a of the cleaning head 120 to the distance b between the rotation shaft of the swivel arm 110 and the rotation shaft of the cleaning head 120 can also be less than 1 or greater than 2, which is not limited in this disclosure.

[0041] The rotation radius of the cleaning head 120 can be from 60 mm to 80 mm, such as 60 mm, 62 mm, 65 mm, 68 mm, 70 mm, 72 mm, 75 mm, 78 mm, 80 mm, etc., which are not listed individually in this disclosure. By defining the rotation radius of the cleaning head 120 as being from 60 mm to 80 mm, the cleaning head 120 can clean an area with a diameter of 120 mm to 160 mm. This improves cleaning efficiency while avoiding long brush claws and enhancing the cleaning effect. Obviously, the rotation radius of the cleaning head can also be less than 60 mm or greater than 80 mm, which is not limited in this disclosure.

[0042] The distance b between the rotating shaft of the pivoting arm 110 and the rotating shaft of the cleaning head 120 can be from 40 mm to 70 mm, such as 40 mm, 42 mm, 45 mm, 48 mm, 50 mm, 52 mm, 55 mm, 56 mm, 58 mm, 60 mm, 62 mm, 65 mm, 68 mm, 70 mm, etc., which are not listed one by one in this disclosure. By defining the distance b between the rotation shaft of the swivel arm 110 and the rotation shaft of the cleaning head 120 as being from 40 mm to 70 mm, the swivel arm 110 can place the cleaning head 120 in a deployed position S2 at a relatively small pivot angle, thus improving the reliability of the swivel arm 110. Obviously, the distance b between the rotation shaft of the swivel arm 110 and the rotation shaft of the cleaning head 120 can also be less than 40 mm or greater than 70 mm, which is not limited in this disclosure.

[0043] More specifically, the cleaning head 120 comprises a plurality of brush claws 122, and the plurality of brush claws 122 are of the same length. As described in [Fig. 3], the cleaning head 120 is a side brush with three brush claws 122 evenly distributed in a circumferential direction around the side brush to enhance the cleaning effect of the side brush. Obviously, the side brush can also comprise two, four, or more than four brush claws 122.

[0044] As described in [Fig.1], the side brush comprises a mounting part 121 and a brush claw 122 connected to the mounting part 121, and the side brush is rotatably mounted on the pivoting arm 110 via the mounting part 121.

[0045] One embodiment of this disclosure further relates to a cleaning device. As described in Figures 2 to 6, the cleaning device 10 comprises: a device body 200 and the cleaning module 100 provided in the embodiments above. The first end of the pivoting arm 110 of the cleaning module 100 is pivotally mounted on the device body 200, and the pivoting arm 110 can be positioned in a retracted position S1 and a deployed position S2 relative to the device body 200 by pivoting.

[0046] In the cleaning device 10 provided by this disclosure, the cleaning head 120 can pivot within a predefined angle range under the drive of the pivoting arm 110, so as to perform a cleaning operation at a target position. The radius of rotation a of the cleaning head 120 is greater than the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the head. cleaning 120, which increases the cleaning radius of the cleaning head 120, thus increasing the cleaning area and the cleaning effect of the cleaning head 120. When the swivel arm 110 pivots to a different position, the position corresponding to the rotation shaft of the swivel arm 110 can be covered by the cleaning area formed by the cleaning head 120 since the rotation radius a of the cleaning head 120 is greater than the distance b between the rotation shaft of the swivel arm 110 and the rotation shaft of the cleaning head 120, thus improving the cleaning effect of the cleaning device 10.

[0047] When the cleaning head 120 is in the retracted position S1, it can perform normal cleaning operations and sweep debris from its cleaning area towards a dust extraction port. When the cleaning head 120 is in the extended position S2, its cleaning area is also extended beyond the cleaning device 10, allowing for the cleaning of more areas. This helps prevent dead spots and improves the cleaning effect of the device.For example, when the cleaning device is almost circular overall and it is necessary to clean corners such as wall corners, the cleaning area of ​​the cleaning head 120 cannot cover the wall corners if the cleaning head 120 is in the retracted position SI, so the cleaning device cannot clean the wall corners that form the sanitary dead corner. Thus, if the cleaning head 120 is in the deployed position, the cleaning head 120 is located outside the cleaning device 10, and the cleaning area formed by the cleaning head 120 moves outwards from the cleaning device, thereby increasing the surface area of ​​the cleaning zone corresponding to the cleaning head 120, so as to clean sanitary dead corners such as wall corners, and improve the cleaning effect of the cleaning device 10.

[0048] More specifically, the device body 200 further includes a drive assembly, and the first end of the pivoting arm 110 is connected to the drive assembly. The pivoting arm 110 may be equipped with a set of gears, such that an output shaft of the drive assembly drives the cleaning head 120 to rotate at a high speed. The rotational speed of the cleaning head 120 can vary from 500 rpm to 3,000 rpm, to improve cleaning efficiency and effect. The rotational speed may be, for example, 500 rpm, 800 rpm, 1,000 rpm, 2,000 rpm, 3,000 rpm, etc., which are not listed individually in this disclosure. Of course, the rotation speed of the 120 cleaning head can also be less than 500 rpm or more than 3,000 rpm, which is not limited in this disclosure.

[0049] A receiving space can be defined in the pivoting arm 110 for mounting the gear assembly in the pivoting arm 110. The pivoting arm 110 can have a cuboid-type structure overall, and an extension direction of the pivoting arm 110 can be a direction along the length of the pivoting arm 110. The pivoting arm 110 pivots in the width direction of the pivoting arm 110. The receiving space formed by the pivoting arm 110 in the thickness direction of the pivoting arm 110 is dimensioned to receive only the gear assembly, so as to prevent the pivoting arm 110 from being too large.

[0050] The pivoting arm 110 pivots back and forth within a predefined angle range, and the predefined angle can be from 20° to 120°, such as 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, etc., which are not listed one by one in this disclosure.

[0051] The pivoting arm 110 can pivot oscillatingly within a predefined angle range via the drive assembly, and a drive assembly that drives the pivoting arm 110 and a drive assembly that drives the cleaning head 120 can be two independent drive assemblies. Alternatively, the pivoting arm 110 is rotationally connected to the drive assembly but is not driven by it; the pivoting arm 110 can pivot relative to the drive assembly under the effect of an external force to change the position of the cleaning head 120 relative to the device body 200.

[0052] In one embodiment, the cleaning device includes an external housing, which serves as the overall housing. When the overall shape of the cleaning device is circular, elliptical, quasi-circular, etc., the external housing comprises a top cover portion and an annular side wall portion. The top cover portion and the annular side wall portion join to form a receiving space, and the receiving space is configured for mounting various modules inside it, for example, a drive module, a liquid supply module, a battery module, a control module, a dust extraction module, a washing module, a detection module, etc.

[0053] In one embodiment, the drive module can manipulate the cleaning device to move across the ground in a forward direction X based on a drive command with distance and angle information (e.g., x, y, and 0 components). The drive module may include a first drive wheel module and a second drive wheel module. The first and second drive wheel modules are arranged along a transverse axis defined by the cleaning device, and one extension direction of the transverse axis is the forward direction X of the cleaning device. In order for the cleaning device to move more stably or more Powerful on the ground, the cleaning device may include one or more drive wheels, including, but not limited to, universal wheels. The drive wheel module comprises a walking wheel, a drive motor, and a control circuit for the drive motor. The drive wheel module may also be connected to a circuit for measuring drive current and an odometer. The drive wheel module can be removably connected to a lower housing for convenient disassembly / assembly and maintenance. The drive wheel may be equipped with a downward-loaded suspension system, which is movably fixed, for example, rotatably fixed, connected to the lower housing, and receives a downward and opposite spring load from the lower housing.The spring tension allows the drive wheel to maintain contact and traction with the ground with a certain degree of ground adhesion force, while the cleaning head 120 of the cleaning device is also kept in contact with the ground with a certain pressure.

[0054] In another embodiment, as described in [Fig.6], the device body 200 is circular in shape, a distance between the center of the device body 200 and the rotation shaft of the pivoting arm 110 is c, and c : b = 2 to 4, for example, 2, 2.2, 2.5, 2.7, 3, 3.2, 3.5, 3.75, 3.8, 4, etc., which are not listed one by one in this disclosure.The ratio of the distance c between the center of the device body 200 and the rotation shaft of the pivoting arm 110 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 is defined as being 2 to 4, which prevents the length of the pivoting arm 110 relative to the device body 200 from being too short, and allows the pivoting arm 110 to ensure that the side brush is located in the retracted position SI and in the deployed position S2 within a relatively small pivoting range, which also prevents the length of the pivoting arm 110 relative to the device body 200 from being too long, so as to improve the stability of the pivoting arm 110 when the pivoting arm 110 pivots relative to the device body 200 and the reliability of the side brush support when the side brush is operating.Obviously, the ratio of the distance c between the center of the device body 200 and the rotation shaft of the pivoting arm 110 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 can also be less than 2 or greater than 4, which is not limited in this disclosure.

[0055] The diameter of the device body 200 can be 140 mm. A distance x between the rotation shaft of the pivoting arm 110 and an axis of symmetry of the cleaning device in a first direction, which is the X direction of advancement of the device body 200, can be 130.9 mm. A distance y between the rotation shaft of the pivoting arm 110 and an axis of symmetry of the cleaning device in a second direction perpendicular to the first direction can be 73.25 mm.

[0056] In one embodiment, the device body 200 is circular in shape, a diameter of the device body 200 is d, and d : b = 4 to 10, such as 4, 4.5, 5, 5.5, 6, 6.3, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, etc., which are not listed here one by one in this disclosure.The ratio of the diameter d of the device body 200 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 is defined as being 4 to 10, which prevents the length of the pivoting arm 110 relative to the device body 200 from being too short, and allows the pivoting arm 110 to ensure that the side brush is located in the retracted position SI and in the deployed position S2 within a relatively small pivoting range, which also prevents the length of the pivoting arm 110 relative to the device body 200 from being too long, so as to improve the stability of the pivoting arm 110 when the pivoting arm 110 pivots relative to the device body 200 and the reliability of the side brush support when the side brush is operating.Obviously, the ratio of the diameter d of the device body 200 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 can also be less than 4 or greater than 10, which is not limited in this disclosure.

[0057] The diameter of the device body 200 can be 140 mm and the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 can be 55.56 mm.

[0058] In one embodiment, as described in [Fig. 3] to [Fig. 5], the device body 200 is circular, the diameter of the device body 200 is d; and when the pivoting arm 110 is located in the deployed position S2, a distance between the rotation shaft of the cleaning head 120 and the axis of symmetry of the cleaning device in the forward direction X of the cleaning device is e, and e + a > d / 2. The sum of the distance e between the rotation shaft of the cleaning head 120 and the axis of symmetry of the cleaning device in the first direction and the radius of rotation a of the cleaning head 120 is defined so as to be greater than the radius d / 2 of the device body 200.In other words, when the pivoting arm 110 is located in the deployed position S2, which is equivalent to one edge of the side brush protruding from one edge of the device body 200 in the first direction, so that the side brush can cover an area that the device body 200 cannot reach in the first direction, and when the device body 200 encounters an obstacle while advancing, or when the device body 200 is located in a position such as a corner of a wall, the side brush can clean an area in front, thus improving the cleaning effect.

[0059] More specifically, (e + a) : d / 2 = 1.1 to 1.3, for example, 1.1, 1.15, 1.2, 1.25, 1.3, etc., which are not listed one by one in this disclosure.

[0060] In the second direction perpendicular to the direction of advancement X of the cleaning device, the distance between the rotation shaft of the cleaning head 120 and the axis of symmetry of the cleaning device is / , and / + a > d / 2. The sum of the distance / between the rotation shaft of the cleaning head 120 and the axis of symmetry of the cleaning device in the second direction and the radius of rotation a of the cleaning head 120 is defined so as to be greater than the radius d / 2 of the body of the device 200.In other words, when the pivoting arm 110 is located in the deployed position S2, which is equivalent to one edge of the side brush protruding from one edge of the device body 200 in the second direction, so that the side brush can cover an area that the device body 200 cannot reach in the second direction, and when the device body 200 encounters an obstacle while advancing, or when the device body 200 is located in a position such as a corner of a wall, the side brush can clean the area in front, thus improving the cleaning effect.

[0061] Specifically, (f+ a) : d / 2 = 1.1 to 1.3, for example, 1.1, 1.15, 1.2, 1.25, 1.3, etc., which are not listed one by one in this disclosure.

[0062] Specifically, ( / + d) : d / 2 can be equal to (e + d) : d / 2, i.e., can be equal to e, so that the cleaning head 120 can cover more areas in both the first and second directions, thereby resolving the problem of sanitary dead corners and improving the cleaning efficiency and effect of the cleaning device. Obviously, ( / + d) : d / 2 may not be equal to (e + a) : d / 2, which is not limited in this disclosure.

[0063] In one embodiment, the detection module includes a positioning means located on the housing of the device body 200, a collision sensor disposed on a pad of a front component of the housing, a proximity sensor disposed on the housing, a steepness sensor disposed in a lower part of the housing, and a detection means such as a magnetometer, accelerometer, gyroscope, or odometer disposed inside the housing, which are configured to provide the control module with various position information and information on the movement status of the cleaning device. The positioning means may be a camera or a laser rangefinder.

[0064] In one embodiment, the control module is arranged on the printed circuit board in the device body housing 200, comprising non-temporary memory, such as a hard drive, flash memory, or RAM, and a communication computer processor, such as a central processing unit, and an application processor. The application processor uses a positioning algorithm, such as real-time positioning and map construction, to draw a real-time map of the environment in which the cleaning device is located, based on obstacle information returned by the laser rangefinder. In addition, in combination with distance and speed information returned by detection means such as the sensor located on the pad, the escarpment sensor, the magnetometer, the accelerometer, the gyroscope, the odometer, etc., it is determined, comprehensively, that the operating state or location of the cleaning device, and the current posture of the cleaning device, such as (the cleaning device) passing over a door threshold, located on a mat, located at an escarpment, an upper or lower (part) being stuck, the dust collection box being full, (the cleaning device) being picked up, etc.and a specific next action strategy can be given for a different situation, so that the cleaning device can provide better cleaning performance and a better user experience.

[0065] In one embodiment, a dust extraction module is disposed on the cleaning device. The dust extraction module comprises a negative pressure fan, a dust extraction box, and a dust extraction channel. An outlet of the dust extraction channel is connected to the dust extraction box, and an inlet of the dust extraction channel is exposed through a cover plate. The negative pressure fan is connected to the dust extraction box, such that the dust extraction box is maintained in a negative pressure state when the cleaning device performs a cleaning operation, and therefore the inlet of the dust extraction channel is in a negative pressure state.

[0066] The cleaning head 120 is positioned adjacent to the dust suction port. The cleaning head 120 rotates at high speed to sweep debris near the dust suction port, then the debris is drawn into the dust suction channel through the dust suction port under the effect of negative pressure, and enters the dust suction box, so as to clean the debris from the surface to be cleaned.

[0067] As described in [Fig.1], the dust suction port is located in a central position on a base of the cleaning device, and the cleaning head 120 is located on a front side (front left or front right) of the dust suction port, so that the debris swept by the cleaning head 220 can be substantially located in the central position of the dust suction port, so as to enter the dust suction port more easily.

[0068] The negative pressure supplied by the negative pressure fan can be from 3,000 Pa to 7,000 Pa to improve the negative pressure suction effect on debris. The negative pressure can be, for example, 3000 Pa, 4000 Pa, 5000 Pa, 6000 Pa, 7000 Pa, etc., which are not listed individually in this disclosure. Obviously, the negative pressure provided by the negative pressure ventilator can also be less than 3000 Pa or greater than 7000 Pa, which is not limited in this disclosure.

[0069] The dust suction orifice can also be provided with a roller brush which rotates around an axis parallel to the ground, the roller brush, which has some interference with the ground, sweeps the debris on the ground, rolls and transports the debris into the dust suction channel, and the debris is sucked into the dust suction box by the suction gas, the suction gas being generated by the negative pressure fan and passing through the dust suction box.

[0070] In one embodiment, the cleaning device further comprises a washing module and a liquid supply module. The washing module comprises a wet cleaning head 120, and the liquid supply module comprises a liquid supply assembly that delivers cleaning liquid to the wet cleaning head 120. The wet cleaning head 120 may be arranged below the liquid supply assembly, and the cleaning liquid inside the liquid supply assembly is transmitted to the wet cleaning head 120 via a water supply mechanism, such that the wet cleaning head 120 performs wet cleaning on the surface to be cleaned.Of course, the cleaning fluid inside the fluid supply assembly can also be sprayed directly onto the surface to be cleaned, and the 120 wet cleaning head cleans the surface by evenly applying the cleaning fluid to the surface.

[0071] As described in [Fig. 1], the wet cleaning head 120 can be arranged at the base of the cleaning device. The wet cleaning head 120 can be, for example, a cleaning pad arranged parallel to the surface to be cleaned. The wet cleaning head 120 is configured to clean the surface to be cleaned, and a drive assembly is configured to drive the wet cleaning head 120 to perform essentially a back-and-forth motion along a target surface as part of the surface to be cleaned. The wet cleaning head 120 performs a back-and-forth motion along the surface to be cleaned, and a cleaning cloth or cleaning pad is arranged on a contact surface of the wet cleaning head 120 that comes into contact with the surface to be cleaned.High-frequency friction with the surface to be cleaned is generated by the back-and-forth motion, thus removing stains. The higher the friction frequency, the greater the number of frictions per unit of time. This high-frequency back-and-forth motion is highly effective at cleaning. is significantly superior to that of a conventional back-and-forth motion, such as rotary and friction cleaning. Furthermore, when the friction frequency is close to the sound wave, the cleaning effect is considerably better than that of rotary friction cleaning at tens of revolutions per minute. Moreover, the tufts of bristles on the surface of the wet cleaning head 120 spread more uniformly in the same direction under the influence of high-frequency vibrations, resulting in a more consistent overall cleaning effect. This is in contrast to simply applying downward pressure to increase friction and improve cleaning under low-frequency rotation. Downward pressure alone cannot cause the tufts of bristles to spread in virtually the same direction.The effect of this disclosure is that after high-frequency vibration cleaning, watermarks on the surface to be cleaned are more uniform without leaving unsightly water spots.

[0072] In one embodiment, the battery module comprises a rechargeable battery, such as a nickel-metal hydride (Ni-MH) battery, and a lithium battery. The rechargeable battery can be connected to a charge control circuit, a battery pack charge temperature detection circuit, and a battery undervoltage monitoring circuit, and the charge control circuit, the battery pack charge temperature detection circuit, and the battery undervoltage monitoring circuit are in turn connected to a single-chip control circuit. The cleaning device can be charged by connecting a charging electrode disposed on the device body, for example, on the side, bottom, or top of the device body, to a charging cell.

[0073] Other embodiments of this disclosure will become apparent to a person skilled in the art upon reading the specification and during the practical application of the invention described herein. This application is intended to cover any modification, use, or adaptation of this disclosure that follows the general principles of this disclosure and incorporates common knowledge or techniques customary in the art that are not described in this disclosure. The specification and embodiments are intended to be illustrative only, and the true scope and intent of this disclosure are defined by the appended claims.

Claims

Demands

1. Cleaning module, comprising: a pivoting arm (110) with a first end configured to be pivotally mounted on a target element and a second end; and a cleaning head (120) rotatably mounted on the second end of the pivoting arm, wherein a radius of rotation of the cleaning head is a, a distance between a rotation shaft of the pivoting arm and a rotation shaft of the cleaning head is b, and a> b.

2. Cleaning module according to claim 1, wherein a / b = 1 to

3. Z. Cleaning module according to claim 1, in which a = 60 mm to 80 mm.

4. Cleaning module according to claim 1, wherein b = 40 mm to 70 mm.

5. Cleaning module according to claim 1, wherein the cleaning head (120) comprises a plurality of brush claws (122) having the same length.

6. Cleaning device, comprising: a device body (200); and the cleaning module according to any one of claims 1 to 5, wherein the pivoting arm (110) is pivotally mounted on the device body, and the pivoting arm can be positioned in a retracted position and a deployed position relative to the device body by pivoting.

7. Cleaning device according to claim 6, wherein the device body (200) is circular in shape, and a distance between a center of the device body and the rotation shaft of the pivoting arm is c, and c / b = 2 to 4.

8. Cleaning device according to claim 6, wherein the device body (200) is circular in shape, a diameter of the device body is d, and d / b = 4 to 10.

9. A cleaning device according to claim 6, wherein the device body (200) is circular in shape, a diameter of the device body is d; and when the pivoting arm (110) is located in the deployed position, a distance between the rotation shaft of the head of

10. cleaning (120) and an axis of symmetry of the cleaning device in a direction of advancement of the cleaning device is e, and e + a >d / 2. Cleaning device according to claim 9, wherein a distance between the rotation shaft of the cleaning head (120) and the axis of symmetry of the cleaning device in a direction perpendicular to the direction of advancement of the cleaning device is / , and / + a > d / 2.

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