Cleaning module and cleaning device

Abstract

Cleaning module and cleaning device The present 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 member and a second end on which the cleaning head is rotatably mounted, wherein a rotation radius 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. The cleaning module according to the present disclosure improves the cleaning effect. Fig. 1.

Description

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

[0001] The present disclosure relates to a field 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 focusing on work and have little time to clean their homes. However, daily cleaning and maintaining household 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 clean their homes in order to quickly and easily maintain family hygiene. Cleaning appliances can automatically clean the floor of the room through a certain degree of artificial intelligence.

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

[0004] It should be noted that the information disclosed in the prior art section above is used only to enhance the understanding of the prior art of the present disclosure and therefore may include information that does not constitute prior art known to those of ordinary skill in the art. Statement of the invention

[0005] The present disclosure aims to provide a cleaning module and a cleaning device.

[0006] According to one aspect of the present disclosure, a cleaning module is provided. The cleaning module comprising:

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

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

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

[0010] In an exemplary embodiment of the present disclosure, a / b = 1 to 2.

[0011] In an exemplary embodiment of the present disclosure, a = 60 mm to 80 mm.

[0012] In an exemplary embodiment of the present disclosure, b = 40 mm to 70 mm.

[0013] In an exemplary embodiment of the present disclosure, the cleaning head includes a plurality of brush claws having the same length.

[0014] According to another aspect of the present disclosure, a cleaning device is provided. The cleaning device comprises:

[0015] a device body; and

[0016] the cleaning module described above, wherein the pivoting arm is pivotally mounted to the device body, and the pivoting arm is positionable in a retracted position and an extended position relative to the device body by pivoting.

[0017] In an exemplary embodiment of the present disclosure, the device body is circular in shape, and a distance between a center of the device body and the rotation shaft of the pivot arm is c, and c / b =2 to 4.

[0018] In an exemplary embodiment of the present 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 exemplary embodiment of the present 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 extended position, a distance between the rotation shaft of the cleaning head and an axis of symmetry of the cleaning device in an advancing direction of the cleaning device is e, and e + a > d / 2.

[0020] In an exemplary embodiment of the present 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 the present disclosure, the cleaning head can pivot within a predetermined angle range under the driving of the pivot arm, so as to perform a cleaning operation on the target position. The rotation radius a of the cleaning head is greater than the distance b between the rotation shaft of the pivot 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 pivot arm pivots to a different position, since the rotation radius a of the cleaning head is greater than the distance b between the rotation shaft of the pivot arm and the rotation shaft of the cleaning head, the position corresponding to the rotation shaft of the pivot arm can be covered by a cleaning area formed by the cleaning head, thus improving the cleaning effect.

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

[0023] The accompanying drawings are incorporated in the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description, are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only embodiments of the present disclosure, and for those of ordinary skill in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

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

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

[0026] [Fig.3] [Fig.3] is a basic diagram from below of a cleaning device according to one embodiment of the present disclosure, wherein a pivoting arm is located in a retracted position;

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

[0028] [Fig.5] [Fig.5] is a basic diagram from below of a cleaning device according to one embodiment of the present disclosure, wherein a pivoting arm is located in a retracted position; and

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

[0030] Reference numbers:

[0031] 10. cleaning device;

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

[0033] 200. device body. Description of the embodiments

[0034] Hereinafter, exemplary embodiments are described in more detail with reference to the accompanying drawings. However, the exemplary implementations may be implemented in various forms and should not be construed as being limited to the implementations described herein; rather, these implementations are provided so that the present disclosure is complete and exhaustive and fully represents the concepts of the exemplary implementations to those skilled in the art. Like reference numerals in the drawings represent the same or similar structures, and their detailed description will therefore be omitted.

[0035] Although relative terms such as "upper" and "lower" are used in this specification to describe a relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, for example, depending on the orientation of the examples depicted in the drawings. It is understood that if the device of the illustration is turned over, a depicted "upper" component will become a "lower" component. When a structure is "on" other structures, this may mean that the structure is formed integrally 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 "comprising" and "having" are used to indicate an open inclusive meaning and to mean 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 merely as labels and are not intended to limit the amount of their subject matter.

[0037] First, embodiments of the present disclosure relate to a cleaning module. As described in [Fig.l], 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 member, 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 rotation radius of the cleaning head 120 is a, a distance between a rotation shaft of the pivot arm 110 and a rotation shaft of the cleaning head 120 is b, and a>b. A position where the rotation shaft of the pivot arm 110 is located is a position of a rotation center of the pivot arm 110, and a position where the rotation shaft of the cleaning head 120 is located is a position of a rotation center of the cleaning head 120.

[0039] In the cleaning module 100 provided by the present disclosure, the cleaning head 120 can pivot within a predetermined angle range under the driving of the pivot arm 110 to perform a cleaning operation on the target position. The rotation radius a of the cleaning head 120 is greater than the distance b between the rotation shaft of the pivot 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 cleaning effect of the cleaning head 120.When the pivot arm 110 pivots to a different position, the position corresponding to the rotation shaft of the pivot 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 pivot arm 110 and the rotation shaft of the cleaning head 120, thereby improving the cleaning effect.

[0040] In one embodiment, a ratio of the rotation radius a of the cleaning head 120 to the distance b between the rotation shaft of the pivot 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 the present disclosure. By setting the ratio of the rotation radius a of the cleaning head 120 to the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 as 1 to 2, the cleaning head 120 can cover the area within a pivot range of the pivot arm 110 and perform a cleaning operation on the area within the pivot range of the pivot arm 110.In addition, since a difference between the cleaning radius of the cleaning head 120 and the pivoting radius of the pivot arm 110 is relatively small, when the cleaning head 120 performs a rotary cleaning operation, the pivot arm 110 can provide stable support, so that the cleaning head 120 is in close contact with a surface to be cleaned, thereby 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 pivot arm 110 and the rotation shaft of the cleaning head 120 may also be less than 1 or greater than 2, which is not limited in the present disclosure.

[0041] The rotation radius a of the cleaning head 120 may be 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 one by one in the present disclosure. By defining the rotation radius a of the cleaning head 120 as 60 mm to 80 mm, the cleaning head 120 can clean the area with a diameter of 120 mm to 160 mm, thereby improving the cleaning efficiency while avoiding long brush claws and improving the cleaning effect. Obviously, the rotation radius a of the cleaning head can also be less than 60 mm or greater than 80 mm, which is not limited in the present disclosure.

[0042] The distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 may be 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 the present disclosure. By setting the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 as 40 mm to 70 mm, the pivot arm 110 can place the cleaning head 120 in an extended position S2 at a relatively small pivot angle, thereby improving the reliability of the pivot arm 110. Obviously, the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 can also be less than 40 mm or more than 70 mm, which is not limited in the present disclosure.

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

[0044] As depicted in [Fig.l], the side brush comprises a mounting portion 121 and a brush claw 122 connected to the mounting portion 121, and the side brush is rotatably mounted on the pivot arm 110 via the mounting portion 121.

[0045] An embodiment of the present 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 above embodiments. 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 an extended position S2 relative to the device body 200 by pivoting.

[0046] In the cleaning device 10 provided by the present disclosure, the cleaning head 120 can pivot within a predetermined angle range under the drive of the pivot arm 110, so as to perform a cleaning operation on a target position. The rotation radius a of the cleaning head 120 is greater than the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120. cleaning 120, which increases the cleaning radius of the cleaning head 120, thereby increasing the cleaning area and cleaning effect of the cleaning head 120. When the pivot arm 110 pivots to a different position, the position corresponding to the rotation shaft of the pivot 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 pivot arm 110 and the rotation shaft of the cleaning head 120, thereby improving the cleaning effect of the cleaning device 10.

[0047] When the cleaning head 120 is located in the retracted position S1, the cleaning head 120 can perform normal cleaning operations and sweep debris in the cleaning area of the cleaning head 120 toward a dust suction port. When the cleaning head 120 is located in the extended position S2, the cleaning area corresponding to the cleaning head 120 is also extended outside the cleaning device 10, and more areas can be cleaned, thereby avoiding the occurrence of cleaning dead corners and improving the cleaning effect of the cleaning device.For example, when the cleaning device is quasi-circular as a whole and when 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 located in the retracted position S1, so that the cleaning device cannot clean the wall corners that form the sanitary dead corner. Thus, if the cleaning head 120 is located in the extended position, the cleaning head 120 is located outside the cleaning device 10, and the cleaning area formed by the cleaning head 120 moves to the outside of the cleaning device, thereby increasing the area of the cleaning area corresponding to the cleaning head 120, so as to clean the 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 comprises a drive assembly, and the first end of the pivot arm 110 is connected to the drive assembly. The pivot arm 110 may be provided with a gear assembly, 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 may vary from 500 rpm to 3000 rpm, to improve the cleaning efficiency and the cleaning effect. The rotational speed may be, for example, 500 rpm, 800 rpm, 1000 rpm, 2000 rpm, 3000 rpm, etc., which are not listed one by one in the present disclosure. Of course, the rotational speed of the cleaning head 120 may also be less than 500 rpm or more than 3000 rpm, which is not limited in the present disclosure.

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

[0050] The pivot arm 110 pivots back and forth within a predefined angle range, and the predefined angle may be 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 the present disclosure.

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

[0052] In one embodiment, the cleaning device comprises an outer housing, which serves as an overall housing. When the overall shape of the cleaning device is circular, elliptical, quasi-circular, etc., the outer housing comprises an upper cover portion and an annular sidewall portion. The upper cover portion and the annular sidewall portion join to form an accommodating space, and the accommodating space is configured to mount various modules therein, for example, a drive module, a liquid supply module, a battery module, a control module, a dust suction module, a washing module, a detection module, etc.

[0053] In one embodiment, the drive module may manipulate the cleaning device to move on the ground in a forward direction X based on a driving 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 drive wheel module and the second drive wheel module are arranged along a transverse axis defined by the cleaning device, and an 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, and the drive wheels include, but are not limited to, universal wheels. The drive wheel module includes a walking wheel, a drive motor, and a control circuit for controlling the drive motor, and the drive wheel module may also be connected to a circuit for measuring drive current and an odometer. The drive wheel module may be detachably connected to a lower housing for convenient disassembly / assembly and maintenance. The drive wheel may be provided with a downwardly biased suspension system, which is movably fixed, e.g., rotatably fixed, connected to the lower housing, and receives a spring bias downward and away from the lower housing.The spring bias enables the drive wheel to maintain contact and traction with the ground with a certain degree of ground grip force, while the cleaning head 120 of the cleaning device is also maintained 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 pivot 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 the present disclosure.The ratio of the distance c between the center of the device body 200 and the rotation shaft of the pivot arm 110 to the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 is set as 2 to 4, which prevents the length of the pivot arm 110 relative to the device body 200 from being too short, and allows the pivot arm 110 to make the side brush be located in the retracted position S1 and the extended position S2 within a relatively small pivoting range, which also prevents the length of the pivot arm 110 relative to the device body 200 from being too long, so as to improve the stability of the pivot arm 110 when the pivot arm 110 pivots relative to the device body 200 and the reliability of the support of the side brush when the side brush is working.Obviously, the ratio of the distance c between the center of the device body 200 and the rotation shaft of the pivot arm 110 to the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 may also be less than 2 or greater than 4, which is not limited in the present disclosure.

[0055] The diameter of the device body 200 may 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 advancing direction X of the device body 200, may 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 may 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 herein one by one in the present disclosure.The ratio of the diameter d of the device body 200 to the distance b between the rotation shaft of the pivot arm 110 and the rotation shaft of the cleaning head 120 is set to be 4 to 10, which prevents the length of the pivot arm 110 relative to the device body 200 from being too short, and allows the pivot arm 110 to make the side brush be located in the retracted position S1 and the extended position S2 within a relatively small pivoting range, which also prevents the length of the pivot arm 110 relative to the device body 200 from being too long, so as to improve the stability of the pivot arm 110 when the pivot arm 110 pivots relative to the device body 200 and the reliability of the support of the side brush when the side brush is working.Obviously, the ratio of the diameter d of the body of the apparatus 200 to the distance b between the rotation shaft of the pivoting arm 110 and the rotation shaft of the cleaning head 120 may also be less than 4 or greater than 10, which is not limited in the present disclosure.

[0057] The diameter of the device body 200 may 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 may be 55.56 mm.

[0058] In one embodiment, as described in [Fig. 3] to [Fig. 5], the device body 200 is circular in shape, the diameter of the device body 200 is d; and when the pivot arm 110 is located in the extended position S2, a distance between the rotation shaft of the cleaning head 120 and the axis of symmetry of the cleaning device in the advancing 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 rotation radius a of the cleaning head 120 is set to be greater than the radius d / 2 of the device body 200.That is, when the pivot arm 110 is located in the extended position S2, which is equivalent to an edge of the side brush protruding from an edge of the device body 200 in the first direction, such 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 moving forward, or when the device body 200 is located in a position such as a wall corner, the side brush can clean a front area, thereby improving the cleaning effect.

[0059] More precisely, (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 the present disclosure.

[0060] In the second direction perpendicular to the forward direction 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 rotation radius a of the cleaning head 120 is set to be greater than the radius d / 2 of the device body 200.That is, when the pivot arm 110 is located in the extended position S2, which is equivalent to an edge of the side brush protruding from an edge of the device body 200 in the second direction, such 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 moving forward, or when the device body 200 is located in a position such as a wall corner, the side brush can clean the front area, thereby 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 the present disclosure.

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

[0063] In one embodiment, the detection module comprises a position determining 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 scarp sensor disposed in a lower portion of the housing, and a detection means such as a magnetometer, an accelerometer, a gyroscope, an odometer disposed inside the housing, which are configured to provide the control module with various position information and information on the movement state of the cleaning device. The position determining means may be a camera or a laser ranging means.

[0064] In one embodiment, the control module is disposed on the printed circuit board in the housing of the device body 200, comprising non-temporary memory, such as a hard disk, flash memory, random access memory, 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, for drawing a real-time map of the environment in which the cleaning device is located, based on the obstacle information returned by the laser ranging means. In addition, in combination with the distance information and the speed information returned by the detection means such as the sensor provided 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 sill, located on a carpet, located at a escarpment, an upper or lower (portion) being stuck, the dust suction 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 user experience.

[0065] In one embodiment, a dust suction module is provided on the cleaning device. The dust suction module comprises a negative pressure fan, a dust suction box, and a dust suction channel. An outlet of the dust suction channel is in communication with the dust suction box, and an inlet of the dust suction channel is exposed from a cover plate. The negative pressure fan is in communication with the dust suction box, such that the dust suction box is maintained in a negative pressure state when the cleaning device performs a cleaning operation, and thus the inlet of the dust suction channel is in a negative pressure state.

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

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

[0068] The negative pressure provided by the negative pressure fan may be 3000 Pa to 7000 Pa to enhance the negative pressure suction effect on the debris. The negative pressure may be, for example, 3000 Pa, 4000 Pa, 5000 Pa, 6000 Pa, 7000 Pa, etc., which are not listed one by one in the present disclosure. Obviously, the negative pressure provided by the negative pressure fan may also be less than 3000 Pa or more than 7000 Pa, which is not limited in the present disclosure.

[0069] The dust suction port may also be provided with a roller brush which rotates around an axis parallel to the ground, the roller brush, which has a certain 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 supplies a 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 the wet cleaning on the surface to be cleaned.Of course, the cleaning liquid inside the liquid supply assembly can also be sprayed directly onto the surface to be cleaned, and the wet cleaning head 120 cleans the surface by evenly applying the cleaning liquid to the surface.

[0071] As described in [Fig.l], the wet cleaning head 120 may be disposed at the base of the cleaning device. The wet cleaning head 120 may be, for example, a cleaning pad disposed 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 basically reciprocate along a target surface as a part of the surface to be cleaned. The wet cleaning head 120 reciprocates along the surface to be cleaned, and a cleaning cloth or cleaning plate is disposed on a contact surface of the wet cleaning head 120 that contacts the surface to be cleaned.High-frequency friction with the surface to be cleaned is generated by the reciprocating motion, so that the stains on the surface to be cleaned are removed. The higher the friction frequency, the higher the number of frictions per unit time. The cleaning ability of the high-frequency reciprocating motion. is significantly higher than that of ordinary reciprocating motion, such as rotating and rubbing cleaning. Optionally, in the case where the rubbing frequency is close to the sound wave, the cleaning effect is significantly better than that of rotating rubbing cleaning at tens of revolutions per minute. On the other hand, the hair tufts on a surface of the wet cleaning head 120 extend in the same direction more uniformly under the effect of high-frequency vibration, and thus the overall cleaning effect is more uniform, compared with simply applying downward pressure to increase friction to improve the cleaning effect under the low-frequency rotation. The downward pressure alone cannot make the hair tufts extend in almost the same direction.The effect of the present disclosure is that after high-frequency vibration cleaning, the water marks on the surface to be cleaned are more uniform without leaving messy water stains.

[0072] In one embodiment, the battery module includes a rechargeable battery, such as a nickel-metal hydride (Ni-MH) battery and a lithium battery. The rechargeable battery may be connected to a charging control circuit, a battery pack charging temperature detection circuit, and a battery undervoltage monitoring circuit, and the charging control circuit, the battery pack charging temperature detection circuit, and the battery undervoltage monitoring circuit are in turn connected to a single-chip control circuit. The cleaning device may 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 pile.

[0073] Other embodiments of the present disclosure will be apparent to those skilled in the art upon reading the specification and practicing the invention described herein. This application is intended to cover any modification, use, or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or techniques customary in the art not described in the present disclosure. The specification and embodiments are intended to be exemplary only, and the true scope and spirit of the present disclosure are defined by the appended claims.

Claims

Claims

1. A cleaning module, comprising: a pivoting arm (110) with a first end configured to be pivotally mounted on a target member and a second end; and a cleaning head (120) rotatably mounted on the second end of the pivoting arm, wherein a rotation radius 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. A cleaning module according to claim 1, wherein a / b = 1 to

3. Z. A cleaning module according to claim 1, wherein a = 60 mm to 80 mm.

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

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

6. A 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 is positionable in a retracted position and an extended position relative to the device body by pivoting.

7. A 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 pivot arm is c, and c / b = 2 to 4.

8. 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 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 pivot arm (110) is located in the extended 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. A 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 advancing direction of the cleaning device is / , and / + a > d / 2.

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