AU2022430603B2

AU2022430603B2 - Automatic cleaning device

Info

Publication number: AU2022430603B2
Application number: AU2022430603A
Authority: AU
Inventors: Hongliang Xu
Original assignee: Beijing Rockrobo Technology Co Ltd
Current assignee: Beijing Rockrobo Technology Co Ltd
Priority date: 2022-01-05
Filing date: 2022-06-27
Publication date: 2025-12-04
Anticipated expiration: 2042-06-27
Also published as: EP4461186A4; KR20240129026A; CN216907817U; JP2025503812A; US20250089964A1; AU2022430603A1; EP4461186A1; WO2023130681A1

Abstract

An automatic cleaning apparatus, comprising: a moving platform (100), which is configured to automatically move on an operation surface and comprises a cover plate (200); and a key assembly (400) assembled on the cover plate (200), the key assembly (400) comprising a key cap (410) and a support (420), and the key cap (410) being assembled on the support (420), wherein the support (420) and the cover plate (200) are integrally formed; the key cap (410) comprises a key cap pressing portion (411) and a key cap skirt (412); the key cap (410) is directly assembled on the integrally formed support (420); and a decorative cover (300) provided on a top surface of the cover plate (200) presses the key cap skirt (412) for fixation, thereby integrally simplifying the mounting structure of the key cap assembly (400), and facilitating early assembly and later maintenance.

Description

AUTOMATIC CLEANING DEVICE 06 Nov 2025

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is the Australian national phase entry of International PCT

application No. PCT/CN2022/101608, filed on June 27, 2022, which claims priority of

Chinese Patent Application No. 202220023511.5 filed on January 5, 2022, the disclosures 2022430603

of both of which are herein incorporated as a part of the present application by reference

in their entirety.

TECHNICAL FIELD

[0002] The present disclosure relates to the field of cleaning robot technology, and in

particular to an automatic cleaning device.

BACKGROUND

[0003] Cleaning robots including sweeping robots, mopping robots, sweeping and mopping

integrated robots and the like are becoming more and more popular in modern life, which brings

convenience to homes. With the popularity of the cleaning robots, the functions and structures

of the cleaning robots have become more and more complex, and thus the production cost.

[0004] In the prior art, some cleaning robots are additionally provided with structures or

functions such as automatic charging, automatic dust removal, lifting and vibration. As a result,

the degree of the complexity of various parts of the cleaning robots is increased while the

cleaning robots are getting more intelligent, causing a lot of inconvenience to subsequent

maintenance.

[0005] Any reference to or discussion of any document, act or item of knowledge in this

specification is included solely for the purpose of providing a context for the present invention.

It is not suggested or represented that any of these matters or any combination thereof formed

at the priority date part of the common general knowledge, or was known to be relevant to an

attempt to solve any problem with which this specification is concerned.

SUMMARY 06 Nov 2025

[0006] In a first aspect, the present disclosure provides an automatic cleaning device,

comprising:

a mobile platform configured to automatically move on an operation surface, the mobile

platform comprising a cover plate; and 2022430603

a button assembly assembled to the cover plate, wherein the button assembly comprises a

button cap and a bracket, the button cap is assembled to the bracket, the button cap comprises

a button cap pressing portion and a button cap skirt border disposed around the button cap

pressing portion, and the button cap pressing portion and the button cap skirt border are

integrally formed;

wherein the bracket and the cover plate are integrally formed.

[0007] According to embodiments of the present disclosure, an automatic cleaning device is

provided by the present disclosure. The automatic cleaning device includes a mobile platform

which is configured to automatically move on an operation surface. The mobile platform

includes a cover plate; and a button assembly which is assembled to the cover plate, wherein

the button assembly includes a button cap and a bracket, and the button cap is assembled to the

bracket, and the bracket and the cover plate are integrally formed.

[0008] In some embodiments, the button cap includes a button cap pressing portion and a

button cap skirt border, and the button cap skirt border is disposed around the button cap

pressing portion.

[0009] In some embodiments, a decorative cover disposed on a top surface of the cover plate

is further included, wherein the decorative cover includes a mounting hole that matches with

the button cap pressing portion in shape, and when the button cap is assembled to the bracket,

an edge of the mounting hole presses against the button cap skirt border.

[0010] In some embodiments, the cover plate includes a button cap mounting portion that substantially matches with the button cap skirt border in contour, and when the button cap is 06 Nov 2025 assembled to the bracket, the button cap skirt border fits with the button cap mounting portion, and an upper surface of the button cap skirt border is substantially coplanar with or is slightly higher than an upper surface of the cover plate.

[0011] In some embodiments, the button cap mounting portion includes a groove extending 2022430603

circumferentially along an edge, the button cap skirt border includes a protruding rim extending

circumferentially along an edge, and when the button cap is assembled to the bracket, the

protruding rim is inserted into the groove.

[0012] In some embodiments, an inner side and/or an outer side of the protruding rim

include(s) at least one protrusion.

[0013] In some embodiments, the button cap mounting portion includes two button holes

disposed symmetrically, and the bracket is integrally formed in the button holes.

[0014] In some embodiments, the button cap further includes a first protruding portion and a

second protruding portion which are disposed on a lower surface of the button cap pressing

portion, and when the button cap is assembled to the bracket, the first protruding portion and

the second protruding portion implement pressing through the bracket.

[0015] In some embodiments, the first protruding portion and the second protruding portion

each includes a columnar structure extending downward from the lower surface of the button

cap pressing portion and a conical structure extending downward from the columnar structure,

and a flat structure is formed at a joint where the columnar structure is connected with the

conical structure.

[0016] In some embodiments, the bracket includes at least one elastic arm and a button ring

connected through the at least one elastic arm, the button ring is configured to prop up the flat

structure after the conical structure passes through the button ring, and the elastic arm is

configured to enable the button ring to restore an original position thereof.

[0017] In some embodiments, the bracket includes at least one elastic arm and a button plate 06 Nov 2025

connected through the at least one elastic arm, the button plate is configured to transmit a

pressing force through the first protruding portion and the second protruding portion when the

button cap is pressed, and the elastic arm is configured to enable the button plate to restore an

original position thereof. 2022430603

[0018] In some embodiments, a lower surface of the button plate includes a conical protrusion,

and the conical protrusion is configured for use in implementing pressing.

[0019] In some embodiments, a switch element is further included, wherein the switch

element is configured to be triggered by pressing applied through the conical structure or the

conical protrusion.

[0020] Compared with the prior art, the embodiments of the present disclosure have the

following technical effects.

[0021] The present disclosure provides an automatic cleaning device. The button assembly is

assembled to the cover plate of the automatic cleaning device. The button assembly includes

the button cap and the bracket, and the button cap includes the button cap pressing portion and

the button cap skirt border. The bracket and the cover plate are integrally formed. The button

cap is directly assembled to the integrally formed bracket. The decorative plate presses against

the button cap skirt border for fixing. As a result, the structure of the button cap assembly to be

assembled can be simplified, thereby facilitating early assembling and later maintenance.

BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings, which are incorporated in and constitute a part of this specification,

illustrate embodiments consistent with the present disclosure, and serve together with the

specification to explain principles of the present disclosure. It is apparent that the drawings in

the following description are only some embodiments of the present disclosure, and for those

of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts, in which: 06 Nov 2025

[0023] FIG. 1 is an oblique view of an automatic cleaning device according to some

embodiments of the present disclosure;

[0024] FIG. 2 is a schematic structural diagram of a bottom of an automatic cleaning device

according to some embodiments of the present disclosure; 2022430603

[0025] FIG. 3 is a schematic structural diagram of assembling of a button assembly of an

automatic cleaning device according to some embodiments of the present disclosure;

[0026] FIG. 4 is a schematic top view of a button cap of an automatic cleaning device

according to some embodiments of the present disclosure;

[0027] FIG. 5a is a schematic bottom view of a button cap of an automatic cleaning device

according to some embodiments of the present disclosure;

[0028] FIG. 5b is a schematic bottom view of a button cap of an automatic cleaning device

according to some embodiments of the present disclosure;

[0029] FIG. 6 is a schematic top view of a decorative cover of an automatic cleaning device

according to some embodiments of the present disclosure;

[0030] FIG. 7 is a schematic structural diagram of a cover plate of an automatic cleaning

device according to some embodiments of the present disclosure;

[0031] FIG. 8a is an enlarged schematic structural diagram of an upper side of a button

bracket of an automatic cleaning device according to some embodiments of the present

disclosure;

[0032] FIG. 8b is an enlarged schematic structural diagram of a lower side of a button bracket

of an automatic cleaning device according to some embodiments of the present disclosure;

[0033] FIG. 9 is a schematic structural diagram of assembling of a button assembly of an

automatic cleaning device according to some embodiments of the present disclosure; and

[0034] FIG. 10 is a schematic diagram of a sectional structure of a button assembly of an automatic cleaning device according to some embodiments of the present disclosure. 06 Nov 2025

[0035] Reference numerals in the drawings:

[0036] mobile platform 100; backward portion 110; forward portion 111; sensing system 120;

position determination unit 121; buffer 122; cliff sensor 123; control system 130; driving 2022430603

system 140; driving wheel assembly 141; steering assembly 142; cleaning module 150; dry

cleaning module 151; side brush 152; main brush module 153; dust box 300; filter screen 500;

energy system 160; human-machine interaction system 170; cover plate 200; button assembly

400; button cap 410; hard bracket 420; button cap pressing portion 411; button cap skirt border

412; decorative cover 300; mounting hole 310; groove 211; protruding rim 413; protrusion 414;

button hole 212; elastic arm 421; button ring 422; first protruding portion 417; second

protruding portion 418; columnar structure 4181; conical structure 4182; flat structure 4183;

button plate 423; pressing portion 4231; conical protrusion 4232.

DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions and advantages of the present disclosure

clearer, the present disclosure will be further described in detail in the following with reference

to the drawings. Apparently, the described embodiments are only some, rather than all of the

embodiments, in the present disclosure. Based on the embodiments of the present disclosure,

all other embodiments obtained by those of ordinary skill in the art without creative efforts

shall fall within the protection scope of the present disclosure.

[0038] The terms used in the embodiments of the present disclosure are only for the purpose

of describing particular embodiments, and are not intended to limit the present disclosure. The

singular forms “a/an”, “the” and “said” used in the embodiments and the appended claims of

the present disclosure are intended to include the plural forms as well, unless otherwise clearly

indicated in the context. The term “a plurality of” generally includes at least two.

[0039] It should be understood that the term “and/or” used herein only describes an associated 06 Nov 2025

relationship of associated objects, and indicates that there may be three kinds of relationships.

For example, A and/or B can represent that A exists alone, A and B exist concurrently, and B

exists alone. In addition, the character “/” herein generally indicates an “or” relationship

between the contextual objects. 2022430603

[0040] It should be understood that although the terms first, second, third, etc. may be used

in the embodiments of the present disclosure to describe certain objects, these objects should

not be limited to these terms. These terms are only used to distinguish the objects. For example,

a first object may also be referred to as a second object, and similarly, a second object may also

be referred to as a first object, without departing from the scope of the embodiments of the

present disclosure.

[0041] It should also be noted that the terms “comprise”, “include” or any other variants are

intended to cover the nonexclusive inclusion, such that a commodity or device including a

series of elements not only include those elements, but also include other elements not listed

explicitly, or inherent elements of such commodity or device. Without more limitations, the

element defined by the phrase “comprising a ...” does not exclude the existence of other

identical elements in the commodity or device that includes such an element.

[0042] Embodiments of the present disclosure will be described in detail in the following with

reference to the drawings.

[0043] FIGS. 1 and 2 are schematic structural diagrams of an automatic cleaning device

according to some embodiments of the present disclosure. As shown in FIGS. 1 and 2, the

automatic cleaning device may be a vacuum cleaning robot, or may be a mopping/brushing

robot, or may be a window climbing robot, or the like. The automatic cleaning device may

include a mobile platform 100, a sensing system 120, a control system 130, a driving system

140, a cleaning module 150, an energy system 160, and a human-machine interaction system

170. 06 Nov 2025

[0044] The mobile platform 100 may be configured to move automatically on an operation

surface in a target direction. The operation surface may be a surface to be cleaned by the

automatic cleaning device. In some embodiments, the automatic cleaning device may be a

mopping robot, and is operated on a floor, which serves as the operation surface. The automatic 2022430603

cleaning device may also be a window cleaning robot, and is operated on an outer surface of

the glass, which serves as the operation surface, of a building. The automatic cleaning device

may also be a pipeline cleaning robot, and is operated on an inner surface, which serves as the

operation surface, of a pipeline. Merely for the purpose of illustration, the following

descriptions of the present disclosure are given by taking a mopping robot as an example.

[0045] In some embodiments, the mobile platform 100 may be an autonomous mobile

platform or a non-autonomous mobile platform. The autonomous mobile platform means that

the mobile platform 100 itself can automatically and adaptively make operation decisions

according to unexpected environmental inputs, while the non-autonomous mobile platform

itself, instead of adaptively making operation decisions according to unexpected environmental

inputs, can execute given programs or run according to certain logic. Correspondingly, in the

case where the mobile platform 100 is the autonomous mobile platform, the target direction

may be autonomously determined by the automatic cleaning device. In the case where the

mobile platform 100 is the non-autonomous mobile platform, the target direction may be set

systematically or manually. When the mobile platform 100 is the autonomous mobile platform,

the mobile platform 100 includes a forward portion 111 and a backward portion 110.

[0046] The sensing system 120 includes a position determination unit 121 located on the

mobile platform 100, a buffer 122 located at the forward portion 111 of the mobile platform

100, and a sensing device such as a cliff sensor 123, an ultrasonic sensor (not shown in the

drawings), an infrared sensor (not shown in the drawings), a magnetometer (not shown in the drawings), an accelerometer (not shown in the drawings), a gyroscope (not shown in the 06 Nov 2025 drawings) and an odometer (not shown in the drawings), etc., which are located at the bottom of the mobile platform, for providing various position information and motion state information of the automatic cleaning device for the control system 130.

[0047] In order to describe behaviors of the automatic cleaning device more clearly, directions 2022430603

are defined as follows: the automatic cleaning device may travel on the floor by means of

various combinations of movements relative to the following three mutually perpendicular axes

defined by the mobile platform 100, i.e., a transversal axis Y, a front and back axis X, and a

central vertical axis Z. A forward driving direction along the front and back axis X is designated

as “forward”, and a backward driving direction along the front and back axis X is designated

as “backward”. The transversal axis Y substantially extends between a right wheel and a left

wheel of the automatic cleaning device along a center of an axis defined by a center point of a

driving wheel assembly 141. The automatic cleaning device may rotate about the axis Y. It is

referred to as “pitch up” when the forward portion of the automatic cleaning device is tilted

upward and the backward portion thereof is tilted downward, and it is referred to as “pitch

down” when the forward portion of the automatic cleaning device is tilted downward and the

backward portion thereof is tilted upward. In addition, the automatic cleaning device may rotate

around the axis Z. In the forward direction of the automatic cleaning device, it is referred to as

“turn right” when the automatic cleaning device is tilted to the right of the axis X, and it is

referred to as “turn left” when the automatic cleaning device is tilted to the left of the axis X.

[0048] As shown in FIG. 2, the cliff sensors 123 are disposed at the bottom of the mobile

platform 100 and in front and at rear of the driving wheel assembly 141 and configured to

prevent the automatic cleaning device from falling off when the automatic cleaning device

moves back, so as to protect the automatic cleaning device against damage. The

aforementioned “front” refers to a side in the same direction as a travelling direction of the automatic cleaning device, and the aforementioned “rear” refers to a side in a direction opposite 06 Nov 2025 to the travelling direction of the automatic cleaning device.

[0049] The position determination unit 121 includes, but is not limited to, a camera and a

laser distance sensor (LDS).

[0050] The various components in the sensing system 120 may be operated independently or 2022430603

jointly to achieve intended functions more accurately. The surface to be cleaned is identified

by the cliff sensor 123 and the ultrasonic sensor to determine the physical properties of the

surface to be cleaned, including surface materials, the degree of cleanliness, etc., and may be

more accurately determined in combination with the camera, and the LDS, etc.

[0051] For example, whether the surface to be cleaned is a carpet may be determined by the

ultrasonic sensor, and if the ultrasonic sensor determines that the surface to be cleaned is made

of a carpet material, the control system 130 controls the automatic cleaning device to perform

cleaning in a carpet mode.

[0052] The forward portion 111 of the mobile platform 100 is provided with the buffer 122.

The buffer 122 detects one or more events (or objects) in a travelling path of the automatic

cleaning device via the sensing system (for example, an infrared sensor) when the driving

wheel assembly 141 propels the automatic cleaning device to travel on the floor in the process

of cleaning. The automatic cleaning device may control the driving wheel assembly 141

according to the events (or objects), such as an obstacle and a wall, detected by the buffer 122,

to enable the automatic cleaning device to respond to the events (or objects), for example, to

move away from the obstacle.

[0053] The control system 130 is disposed on a main circuit board in the mobile platform 100,

and includes a computing processor, such as a central processing unit or an application

processor, which communicates with non-temporary memories, such as a hard disk, a flash

memory and a random access memory. The application processor is configured to receive environmental information sensed by the plurality of sensors and transmitted from the sensing 06 Nov 2025 system 120, depict an instant map of an environment where the automatic cleaning device is located using a positioning algorithm, e.g., simultaneous localization and mapping (SLAM), according to obstacle information fed back by the LDS, and autonomously determine the travelling path according to the environmental information and the environmental map, to 2022430603 control the driving system 140 to move forward, backward and/or steer according to the autonomously determined travelling path. In some embodiments, the control system 130 may also determine, according to the environmental information and the environmental map, whether to activate the cleaning module 150 to perform a cleaning operation.

[0054] In some embodiments, the control system 130 may comprehensively determine a

current operation state of the sweeping robot, according to distance information and speed

information fed back by the buffer 122 and the sensing devices such as the cliff sensor 123, the

ultrasonic sensor, the infrared sensor, the magnetometer, the accelerometer, the gyroscope and

the odometer. The current operation state of the sweeping robot, for example, includes the

sweeping robot is crossing a doorsill, moving onto a carpet, standing at an edge of a cliff, being

stuck at the top or bottom, having a full dust box or being picked up. The control system 130

may also give specific next-step action strategies according to different situations, making the

action of the automatic cleaning device more in line with the requirements of an owner, and

providing better user experience. Furthermore, the control system may plan the most efficient

and reasonable sweeping path and sweeping mode based on the information of the instant map

depicted by SLAM, thereby greatly improving the sweeping efficiency of the automatic

cleaning device.

[0055] The driving system 140 may execute a driving command based on specific distance

and angle information, such as x, y and θ components, to control the automatic cleaning device

to travel across the floor. As shown in FIG. 2, the driving system 140 includes a driving wheel assembly 141 and may control a left wheel and a right wheel simultaneously. In order to control 06 Nov 2025 the movement of the automatic cleaning device more accurately, the driving system 140 preferably includes a left driving wheel assembly and a right driving wheel assembly that are symmetrically arranged along a transversal axis defined by the mobile platform 100.

[0056] In order to enable the automatic cleaning device to move on the floor more stably or 2022430603

have a stronger movement ability, the automatic cleaning device may include one or more

steering assemblies 142. The steering assemblies 142 may be driven wheels or driving wheels,

and may structurally include but is not limited to universal wheels. The steering assemblies

142 may be located in front of the driving wheel assembly 141.

[0057] The energy system 160 includes a rechargeable battery, such as a nickel-hydrogen

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, which are then connected to a single-chip microcomputer control circuit. A

host of the automatic cleaning device is connected to a charging station through a charging

electrode disposed on a side of or below the body of the automatic cleaning device for charging.

If the exposed charging electrode is covered with dust, due to the accumulative effect of charges

in the process of charging, a plastic body around the electrode will be melted and deformed

and even the electrode itself will be deformed and thus is unable to continue to normally charge

the automatic cleaning device.

[0058] The human-machine interaction system 170 includes buttons that are on a panel of the

host and used by a user to select functions. The human-machine interaction system 170 may

further include a display screen and/or an indicator light and/or a speaker, as well as a mobile

client program. The display, the indicator light and the speaker show the user the current state

or function options of the automatic cleaning device. For a route navigation type cleaning

device, a mobile client may show the user a map of the environment where the device is located, as well as the location of the device, thereby providing the user with richer and more user- 06 Nov 2025 friendly function items.

[0059] As shown in FIG. 2, the cleaning module 150 may include a dry cleaning module 151.

[0060] The dry cleaning module 151 includes a rolling brush, a dust box, a fan, and an air

outlet. The rolling brush having certain interference with the floor sweeps up the garbage on 2022430603

the floor and rolls up the garbage to the front of a dust suction inlet between the rolling brush

and the dust box. The garbage is then sucked into the dust box by air having a suction force,

which is generated by the fan and passes through the dust box. The dust removal capacity of

the sweeping robot can be characterized by a dust pickup (DPU) efficiency of the garbage. The

DPU is affected by the structure and the material of the rolling brush, by a utilization rate of

the air in an air passage formed by the dust suction inlet, the dust box, the fan, the air outlet

and connecting parts among the dust suction inlet, the dust box, the fan and the air outlet, and

by a type and a power of the fan, which is a complex problem in the system design. The

improvement of the dust removal capacity is of greater significance to the energy-limited

automatic cleaning device than an ordinary plug-in vacuum cleaner. This is because the

improvement of the dust removal capacity directly and effectively reduces the demand for

energy. That is, an original cleaning device capable of sweeping 80 square meters of the floor

with one single charge may be improved to sweep 180 square meters or more with one single

charge. In addition, the service life of a battery with a reduced number of charging times may

be greatly prolonged, such that the frequency of replacing the battery by the user may be

reduced. More intuitively and importantly, the improvement of the dust removal capacity is the

most obvious and important user experience as the user can directly determine whether the

thorough sweeping/mopping is achieved. The dry cleaning module may further include a side

brush 152 provided with a rotating shaft at an angle respect to the floor, for moving the debris

into a rolling brush area in the cleaning module 150.

[0061] As an optional cleaning module, the automatic cleaning device may further include a 06 Nov 2025

wet cleaning module configured to clean at least part of the operation surface in a wet cleaning

manner. In some embodiments, the wet cleaning module includes a water tank, a cleaning head,

a driving unit, and the like. Water from the water tank flows along a water path to the cleaning

head, and the cleaning head cleans at least part of the operation surface under the driving of the 2022430603

driving unit.

[0062] An existing pressing structure on a cover plate of the automatic cleaning device is

complex. For example, for the existing cleaning devices, a button structure thereof is mostly

provided as: a soft rubber bracket is disposed on a hard rubber bracket, a hard rubber button

cap and the soft rubber bracket are bonded together, and then the soft rubber bracket and a

decorative cover of an upper shell of the automatic cleaning device are bonded together with a

double-sided adhesive, at the lower side, with the hard rubber bracket being fixed to the upper

shell through a hook. Such a button assembly has a large number of parts and is complex in

structure, which causes a long time in assembling, a complex process and a high cost. Due to

a multi-layer structure of the button assembly, when the soft rubber bracket is bonded to the

decorative cover of the upper shell of the automatic cleaning device, a deviation in mounting

is easily caused by positioning with the soft rubber and it is difficult to disassemble the button.

During disassembling, it is prone to cause the double-sided adhesive and the soft rubber to be

torn up due to the high adhesion between the double-sided adhesive and the soft rubber, and

thus the button cannot be used repeatedly.

[0063] Embodiments of the present disclosure provide an automatic cleaning device, which

simplifies unnecessary elements of the button assembly of the automatic cleaning device. The

button assembly uses one part to enable a button to have functions of sealing, water resistance,

light guide and light shielding, and meanwhile to enable the mounting, disassembling and

maintenance of the button to be more convenient. In some embodiments, as shown in FIG. 3, the present disclosure provides an automatic cleaning device. The automatic cleaning device 06 Nov 2025 includes a mobile platform 100 configured to automatically move on an operation surface. The mobile platform 100 includes a cover plate 200. The cover plate 200 is configured as at least a part of the mobile platform 100 and may be an upper shell of a housing of the mobile platform

100. The mobile platform 100 usually includes a front half portion for bearing a touch button 2022430603

and the like and a rear half portion for bearing a dust box and the like. The automatic cleaning

device further includes a button assembly 400 assembled to the cover plate 200. The button

assembly 400 is configured to receive a touch from a user, so that the automatic cleaning device

can be controlled after being touched by the user. The button assembly 400 includes a flexible

button cap 410 and a hard bracket 420. The button cap 410 is assembled to the bracket 420 for

implementing pressing. As shown in FIG. 4, the button cap 410 includes a button cap pressing

portion 411 and a button cap skirt border 412 formed around the button cap pressing portion

411. The button cap pressing portion 411 and the button cap skirt border 412 form a vertically

stacked structure, with the button cap pressing portion 411 being located above the button cap

skirt border 412, so as to be convenience for the user to press. Outer contours of the button cap

pressing portion 411 and the button cap skirt border 412 may be circular, square, rectangular,

elliptical, D-shaped, or other shapes, which are not limited herein. As shown in FIG. 8a, the

bracket 420 and the cover plate 200 are integrally formed through, for example, mold injection

molding or mold compression molding at a later stage. As the bracket 420 is integrally formed,

the step where the bracket and the cover plate 200 need to be assembled during the assembling

process of the button assembly is omitted, and the light leakage and the water leakage that may

be caused by too many assembling steps of elements are also avoided, as well as the assembly

efficiency of the button assembly is improved. In some embodiments, as shown in FIGS. 3 and

6, the automatic cleaning device further includes a decorative cover 300 disposed on the top

surface of the cover plate 200. The decorative cover 300 is usually configured to conceal irregular devices at the top of the mobile platform 100 for providing an attractive appearance 06 Nov 2025 and the protection. As shown in FIG. 6, the decorative cover 300 includes a mounting hole 310 that matches with the button cap pressing portion 411 in shape. When the button cap 410 is assembled to the bracket 420, the button cap pressing portion 411 passes through the mounting hole 310, and meanwhile, an edge of the mounting hole 310 presses against the button cap skirt 2022430603 border 412. In this way, a tight connection is achieved between the mounting hole 310 and the button cap pressing portion 411, which avoids the light leakage and the water leakage.

Alternatively, the button cap pressing portion 411 passes through the mounting hole 310 in an

interference manner, which can further avoid the light leakage and the water leakage.

[0064] In some embodiments, as shown in FIG. 7, the cover plate 200 includes a button cap

mounting portion 210 that substantially matches with the button cap skirt border in contour.

The button cap mounting portion 210 is substantially a recessed structure, and a recessed

contour of the button cap mounting portion 210 may also be circular, square, rectangular,

elliptical, or D-shaped, which is not limited herein. When the button cap 400 is assembled to

the bracket 420, the button cap skirt border 412 fits with the button cap mounting portion 210,

and an upper surface of the button cap skirt border 412 is substantially coplanar with or is

slightly higher than an upper surface of the cover plate 200. During the assembling process,

the button cap is first placed on the button cap mounting portion 210, and the decorative cover

300 is then pressed onto the button cap skirt border 412. Since the upper surface of the button

cap skirt border 412 is substantially coplanar with or is slightly higher than the upper surface

of the cover plate 200, sealing can be achieved by pressing the upper surface of the button cap

skirt border 412 through the decorative cover 300. In some embodiments, after the decorative

cover 300 presses against the upper surface of the button cap skirt border 412, the upper surface

of the button cap skirt border 412 is still slightly higher than the upper surface of the cover

plate 200, which can ensure the sealing performance of the decorative cover 300.

[0065] In some embodiments, as shown in FIG. 8a, the button cap mounting portion 210 06 Nov 2025

includes a groove 211 extending circumferentially along an edge of the button cap mounting

portion 210. The button cap skirt border 412 includes a protruding rim 413 extending

circumferentially along an edge of the button cap skirt border 412. when the button cap 400 is

assembled to the bracket 420, the protruding rim 413 is inserted into the groove 211, so as to 2022430603

achieve complete sealing between the soft rubber button cap 400 and the cover plate 200. In

some embodiments, the protruding rim 413 is inserted into the groove 211 in an interference

manner to achieve complete sealing between the soft rubber button cap 400 and the cover plate

200. In some embodiments, as shown in FIG. 4, at least one of an inner surface and an outer

surface of the protruding rim 413 includes at least one protrusion 414, and a structure of the

protrusion 414 is not limited. For example, the protrusion 414 may be strip-shaped, bump-

shaped or the like. The protrusion 414 can further seal the soft rubber button cap 400 and the

cover plate 200 to enhance water resistance and avoid light leakage, which can also increase

the strength of the button cap, increase friction on a contact surface, and prevent misalignment

in mounting.

[0066] In some embodiments, as shown in FIGS. 9 and 10, the button cap mounting portion

210 includes two button holes 212 disposed symmetrically, and the bracket 420 is integrally

formed in the button holes. In some embodiments, for example, the bracket 420 includes a

button ring 422 connected through at least one elastic arm 421. The button ring 422 is disposed

at an approximate center of the button hole. The button ring 422 is connected to an inner wall

of the button hole through one or two elastic arms 421. The elastic arm 421 may be disposed

around the button ring 422, so as to increase a total length of the elastic arm, thereby increasing

elasticity. The supporting strength is increased through roundabout embracement. The button

ring 422 is configured to bear the button cap 400, so that the button cap 400 can be pressed to

implement a button function. The elastic arm 421 is configured to enable the button ring 422 to restore its original position. The button ring and the elastic arm are made of a hard and elastic 06 Nov 2025 material, such as hard rubber or hard plastic or metal.

[0067] In some embodiments, as shown in FIGS. 5a and 10, the button cap 400 further

includes a first protruding portion 417 and a second protruding portion 418, which are disposed

on a lower surface of the button cap pressing portion 410, and a lower surface of the button cap 2022430603

400 includes a recessed portion 416 for accommodating the first protruding portion 417 and

the second protruding portion 418. Each of the first protruding portion 417 and the second

protruding portion 418 includes a columnar structure 4181 extending downward from the lower

surface of the button cap pressing portion and a conical structure 4182 extending downward

from the columnar structure. The columnar structure 4181 may be cylindrical or prismatic, the

conical structure 4182 may be a circular boss or a pyramid, and the top surface of the conical

structure 4182 is a flat pressing surface. A flat structure 4183 is formed at a joint where the

columnar structure 4181 is connected with the conical structure 4182. The flat structure 4183

surrounds the joint where the columnar structure 4181 is connected with the conical structure

4182. When the button cap is assembled to the bracket 420, the first protruding portion 417 and

the second protruding portion 418 respectively pass through the button rings 422, and edges of

the button rings 422 prop up the flat structure. It is convenient for the conical structures 4182

of the first protruding portion 417 and the second protruding portion 418 to extend into the

button rings 422 and protrude from the button rings 422 to be in contact with pressed devices

on a circuit board to implement pressing.

[0068] In some embodiments, the mobile platform 100 further includes a circuit board 700

disposed below the button assembly 400. The circuit board 700 is provided with switch

elements thereon, such as a micro-switch. The conical structures 4182 of the first protruding

portion 417 and the second protruding portion 418 are abutted against the switch element, and

the switch element is triggered when subjected to a downward pressing force.

[0069] In some embodiments, the bracket 420 includes a button plate 423 connected through 06 Nov 2025

at least one elastic arm 421. As shown in FIGS. 8a and 8b, the button plate 423 is configured

to bear the button cap, so that the button cap can be pressed to achieve the button function. The

elastic arm 421 is configured to enable the button ring to restore its original position. In some

embodiments, the button plate 423 includes a flat-plate pressing portion 4231 and a conical 2022430603

protrusion 4232. The button plate 423 is integrally formed on an inner edge of the bracket 420

through one or more elongated elastic arms 421. The one or more elongated elastic arms 421

are disposed around the button plate 423, to provide the button plate 423 with sufficient elastic

force for pressing and restoring. In some embodiments, as shown in FIG. 5b, the button cap 40

further includes a first protruding portion 417 and a second protruding portion 418, which are

disposed on the lower surface of the button cap pressing portion 410. When the button cap is

assembled to the bracket 420, the first protruding portion 417 and the second protruding portion

418 respectively fit with the upper surfaces of the button plates 423, to implement pressing.

[0070] In some embodiments, the mobile platform 100 further includes a circuit board 700

elements thereon, such as a micro-switch. After the first protruding portion 417 and the second

protruding portion 418 respectively fit with the upper surfaces of the button plates 423 to

implement pressing, the conical protrusion 4232 is abutted against the switch element, and the

switch element is triggered when subjected to a downward pressing force.

[0071] The present disclosure provides an automatic cleaning device. The button assembly is

the button cap skirt border for fixing. As a result, the structure of the button cap assembly to be assembled can be simplified, thereby facilitating early assembling and later maintenance. 06 Nov 2025

[0072] It should be noted that the various embodiments in the specification are described in

a progressive manner, each embodiment focuses on the differences from the other embodiments,

and the same or similar parts among the various embodiments may refer to each other.

[0073] The above embodiments are only used to illustrate the technical solutions of the 2022430603

present disclosure and are not intended to limit the present disclosure. Although the present

disclosure has been described in detail with reference to the foregoing embodiments, those of

ordinary skill in the art should understand that, they can still make modifications to the

technical solutions disclosed in the above various embodiments or make equivalent

substitutions to some of the technical features, and these modifications or substitutions do not

make the essence of the corresponding technical solutions deviate from the spirit and scope of

the technical solutions of the various embodiments of the present disclosure.

Claims

WHAT IS CLAIMED IS: 06 Nov 2025

1. An automatic cleaning device, comprising:

platform comprising a cover plate; and

a button assembly assembled to the cover plate, wherein the button assembly comprises a 2022430603

button cap and a bracket, the button cap being assembled to the bracket, wherein the button cap

comprises a button cap pressing portion and a button cap skirt border disposed around the

button cap pressing portion, and the button cap pressing portion and the button cap skirt border

are integrally formed;

wherein the bracket and the cover plate are integrally formed.

2. The automatic cleaning device according to claim 1, further comprising a decorative

cover disposed on an upper surface of the cover plate, wherein the decorative cover comprises

a mounting hole that matches with the button cap pressing portion in shape, and when the

button cap is assembled to the bracket, an edge of the mounting hole presses against the button

cap skirt border.

3. The automatic cleaning device according to claim 2, wherein the cover plate comprises

a button cap mounting portion that matches with the button cap skirt border in contour, and

when the button cap is assembled to the bracket, the button cap skirt border fits with the button

cap mounting portion, and an upper surface of the button cap skirt border is coplanar with or

is slightly higher than the upper surface of the cover plate.

4. The automatic cleaning device according to claim 3, wherein the button cap mounting

portion comprises a groove extending circumferentially along an edge of the button cap

mounting portion, the button cap skirt border comprises a protruding rim extending

circumferentially along an edge of the button cap skirt border, and when the button cap is

assembled to the bracket, the protruding rim is inserted into the groove.

5. The automatic cleaning device according to claim 4, wherein at least one of an inner 06 Nov 2025

surface and an outer surface of the protruding rim comprises at least one protrusion.

6. The automatic cleaning device according to any one of claims 3 to 5, wherein the button

cap mounting portion comprises two button holes disposed symmetrically, and the bracket is

integrally formed in each of the button holes. 2022430603

7. The automatic cleaning device according to claim 6, wherein the button cap further

comprises a first protruding portion and a second protruding portion which are disposed on a

lower surface of the button cap pressing portion, and when the button cap is assembled to the

bracket, the first protruding portion and the second protruding portion implement pressing

through the bracket.

8. The automatic cleaning device according to claim 7, wherein the first protruding portion

and the second protruding portion each comprises a columnar structure extending downward

from the lower surface of the button cap pressing portion and a conical structure extending

downward from the columnar structure, and a flat structure is formed at a joint where the

columnar structure is connected with the conical structure.

9. The automatic cleaning device according to claim 8, wherein the bracket comprises at

least one elastic arm and a button ring connected through the at least one elastic arm, the button

ring is configured to prop up the flat structure after the conical structure passes through the

button ring, and the elastic arm is configured to enable the button ring to return to an original

position.

10. The automatic cleaning device according to claim 7, wherein the bracket comprises at

least one elastic arm and a button plate connected through the at least one elastic arm, the button

plate is configured to transmit a pressing force through the first protruding portion and the

second protruding portion when the button cap is pressed, and the elastic arm is configured to

enable the button plate to return to an original position.

11. The automatic cleaning device according to claim 10, wherein a lower surface of the 06 Nov 2025

button plate comprises a conical protrusion, and the conical protrusion is configured for use in

implementing pressing.

12. The automatic cleaning device according to claim 8 or 11, further comprising a switch

element configured to be triggered by pressing the conical structure or the conical protrusion. 2022430603